From: Tobias Hintze Date: Fri, 5 Jan 2018 23:56:39 +0000 (+0100) Subject: update vendored miekg/dns for Client.Dialer X-Git-Url: https://vcs.fsf.org/?a=commitdiff_plain;h=120c04f6c6b544c33f3f31c07725882a5f5eb229;p=blackbox_exporter.git update vendored miekg/dns for Client.Dialer --- diff --git a/vendor/github.com/miekg/dns/CONTRIBUTORS b/vendor/github.com/miekg/dns/CONTRIBUTORS index f77e8a8..5903779 100644 --- a/vendor/github.com/miekg/dns/CONTRIBUTORS +++ b/vendor/github.com/miekg/dns/CONTRIBUTORS @@ -7,3 +7,4 @@ Marek Majkowski Peter van Dijk Omri Bahumi Alex Sergeyev +James Hartig diff --git a/vendor/github.com/miekg/dns/Gopkg.lock b/vendor/github.com/miekg/dns/Gopkg.lock new file mode 100644 index 0000000..0c73a64 --- /dev/null +++ b/vendor/github.com/miekg/dns/Gopkg.lock @@ -0,0 +1,21 @@ +# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'. + + +[[projects]] + branch = "master" + name = "golang.org/x/crypto" + packages = ["ed25519","ed25519/internal/edwards25519"] + revision = "b080dc9a8c480b08e698fb1219160d598526310f" + +[[projects]] + branch = "master" + name = "golang.org/x/net" + packages = ["bpf","internal/iana","internal/socket","ipv4","ipv6"] + revision = "894f8ed5849b15b810ae41e9590a0d05395bba27" + +[solve-meta] + analyzer-name = "dep" + analyzer-version = 1 + inputs-digest = "c4abc38abaeeeeb9be92455c9c02cae32841122b8982aaa067ef25bb8e86ff9d" + solver-name = "gps-cdcl" + solver-version = 1 diff --git a/vendor/github.com/miekg/dns/Gopkg.toml b/vendor/github.com/miekg/dns/Gopkg.toml new file mode 100644 index 0000000..2f655b2 --- /dev/null +++ b/vendor/github.com/miekg/dns/Gopkg.toml @@ -0,0 +1,26 @@ + +# Gopkg.toml example +# +# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md +# for detailed Gopkg.toml documentation. +# +# required = ["github.com/user/thing/cmd/thing"] +# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"] +# +# [[constraint]] +# name = "github.com/user/project" +# version = "1.0.0" +# +# [[constraint]] +# name = "github.com/user/project2" +# branch = "dev" +# source = "github.com/myfork/project2" +# +# [[override]] +# name = "github.com/x/y" +# version = "2.4.0" + + +[[constraint]] + branch = "master" + name = "golang.org/x/crypto" diff --git a/vendor/github.com/miekg/dns/Makefile.fuzz b/vendor/github.com/miekg/dns/Makefile.fuzz new file mode 100644 index 0000000..dc158c4 --- /dev/null +++ b/vendor/github.com/miekg/dns/Makefile.fuzz @@ -0,0 +1,33 @@ +# Makefile for fuzzing +# +# Use go-fuzz and needs the tools installed. +# See https://blog.cloudflare.com/dns-parser-meet-go-fuzzer/ +# +# Installing go-fuzz: +# $ make -f Makefile.fuzz get +# Installs: +# * github.com/dvyukov/go-fuzz/go-fuzz +# * get github.com/dvyukov/go-fuzz/go-fuzz-build + +all: build + +.PHONY: build +build: + go-fuzz-build -tags fuzz github.com/miekg/dns + +.PHONY: build-newrr +build-newrr: + go-fuzz-build -func FuzzNewRR -tags fuzz github.com/miekg/dns + +.PHONY: fuzz +fuzz: + go-fuzz -bin=dns-fuzz.zip -workdir=fuzz + +.PHONY: get +get: + go get github.com/dvyukov/go-fuzz/go-fuzz + go get github.com/dvyukov/go-fuzz/go-fuzz-build + +.PHONY: clean +clean: + rm *-fuzz.zip diff --git a/vendor/github.com/miekg/dns/Makefile.release b/vendor/github.com/miekg/dns/Makefile.release new file mode 100644 index 0000000..4069eb0 --- /dev/null +++ b/vendor/github.com/miekg/dns/Makefile.release @@ -0,0 +1,51 @@ +# Makefile for releasing. +# +# The release is controlled from version.go. The version found there is +# used to tag the git repo, we're not building any artifects so there is nothing +# to upload to github. +# +# * Up the version in version.go +# * Run: make -f Makefile.release release +# * will *commit* your change with 'Release $VERSION' +# * push to github +# + +define GO +//+build ignore + +package main + +import ( + "fmt" + + "github.com/miekg/dns" +) + +func main() { + fmt.Println(dns.Version.String()) +} +endef + +$(file > version_release.go,$(GO)) +VERSION:=$(shell go run version_release.go) +TAG="v$(VERSION)" + +all: + @echo Use the \'release\' target to start a release $(VERSION) + rm -f version_release.go + +.PHONY: release +release: commit push + @echo Released $(VERSION) + rm -f version_release.go + +.PHONY: commit +commit: + @echo Committing release $(VERSION) + git commit -am"Release $(VERSION)" + git tag $(TAG) + +.PHONY: push +push: + @echo Pushing release $(VERSION) to master + git push --tags diff --git a/vendor/github.com/miekg/dns/README.md b/vendor/github.com/miekg/dns/README.md index 32a49cb..e6dbad2 100644 --- a/vendor/github.com/miekg/dns/README.md +++ b/vendor/github.com/miekg/dns/README.md @@ -1,19 +1,19 @@ [![Build Status](https://travis-ci.org/miekg/dns.svg?branch=master)](https://travis-ci.org/miekg/dns) +[![Code Coverage](https://img.shields.io/codecov/c/github/miekg/dns/master.svg)](https://codecov.io/github/miekg/dns?branch=master) +[![Go Report Card](https://goreportcard.com/badge/github.com/miekg/dns)](https://goreportcard.com/report/miekg/dns) [![](https://godoc.org/github.com/miekg/dns?status.svg)](https://godoc.org/github.com/miekg/dns) # Alternative (more granular) approach to a DNS library > Less is more. -Complete and usable DNS library. All widely used Resource Records are -supported, including the DNSSEC types. It follows a lean and mean philosophy. -If there is stuff you should know as a DNS programmer there isn't a convenience -function for it. Server side and client side programming is supported, i.e. you -can build servers and resolvers with it. +Complete and usable DNS library. All widely used Resource Records are supported, including the +DNSSEC types. It follows a lean and mean philosophy. If there is stuff you should know as a DNS +programmer there isn't a convenience function for it. Server side and client side programming is +supported, i.e. you can build servers and resolvers with it. -We try to keep the "master" branch as sane as possible and at the bleeding edge -of standards, avoiding breaking changes wherever reasonable. We support the last -two versions of Go, currently: 1.7 and 1.8. +We try to keep the "master" branch as sane as possible and at the bleeding edge of standards, +avoiding breaking changes wherever reasonable. We support the last two versions of Go. # Goals @@ -55,11 +55,13 @@ A not-so-up-to-date-list-that-may-be-actually-current: * https://github.com/mehrdadrad/mylg * https://github.com/bamarni/dockness * https://github.com/fffaraz/microdns -* http://quilt.io +* http://kelda.io * https://github.com/ipdcode/hades (JD.COM) * https://github.com/StackExchange/dnscontrol/ * https://www.dnsperf.com/ * https://dnssectest.net/ +* https://dns.apebits.com +* https://github.com/oif/apex Send pull request if you want to be listed here. @@ -72,7 +74,7 @@ Send pull request if you want to be listed here. * Parsing RRs ~ 100K RR/s, that's 5M records in about 50 seconds; * Server side programming (mimicking the net/http package); * Client side programming; -* DNSSEC: signing, validating and key generation for DSA, RSA and ECDSA; +* DNSSEC: signing, validating and key generation for DSA, RSA, ECDSA and Ed25519; * EDNS0, NSID, Cookies; * AXFR/IXFR; * TSIG, SIG(0); @@ -86,8 +88,8 @@ Miek Gieben - 2010-2012 - # Building -Building is done with the `go` tool. If you have setup your GOPATH -correctly, the following should work: +Building is done with the `go` tool. If you have setup your GOPATH correctly, the following should +work: go get github.com/miekg/dns go build github.com/miekg/dns @@ -148,11 +150,13 @@ Example programs can be found in the `github.com/miekg/exdns` repository. * 6975 - Algorithm Understanding in DNSSEC * 7043 - EUI48/EUI64 records * 7314 - DNS (EDNS) EXPIRE Option +* 7477 - CSYNC RR * 7828 - edns-tcp-keepalive EDNS0 Option * 7553 - URI record -* 7858 - DNS over TLS: Initiation and Performance Considerations (draft) +* 7858 - DNS over TLS: Initiation and Performance Considerations +* 7871 - EDNS0 Client Subnet * 7873 - Domain Name System (DNS) Cookies (draft-ietf-dnsop-cookies) -* xxxx - EDNS0 DNS Update Lease (draft) +* 8080 - EdDSA for DNSSEC ## Loosely based upon diff --git a/vendor/github.com/miekg/dns/client.go b/vendor/github.com/miekg/dns/client.go index 1c14a19..856b169 100644 --- a/vendor/github.com/miekg/dns/client.go +++ b/vendor/github.com/miekg/dns/client.go @@ -9,6 +9,7 @@ import ( "encoding/binary" "io" "net" + "strings" "time" ) @@ -19,7 +20,7 @@ const tcpIdleTimeout time.Duration = 8 * time.Second type Conn struct { net.Conn // a net.Conn holding the connection UDPSize uint16 // minimum receive buffer for UDP messages - TsigSecret map[string]string // secret(s) for Tsig map[], zonename must be fully qualified + TsigSecret map[string]string // secret(s) for Tsig map[], zonename must be in canonical form (lowercase, fqdn, see RFC 4034 Section 6.2) rtt time.Duration t time.Time tsigRequestMAC string @@ -27,14 +28,18 @@ type Conn struct { // A Client defines parameters for a DNS client. type Client struct { - Net string // if "tcp" or "tcp-tls" (DNS over TLS) a TCP query will be initiated, otherwise an UDP one (default is "" for UDP) - UDPSize uint16 // minimum receive buffer for UDP messages - TLSConfig *tls.Config // TLS connection configuration - Timeout time.Duration // a cumulative timeout for dial, write and read, defaults to 0 (disabled) - overrides DialTimeout, ReadTimeout and WriteTimeout when non-zero - DialTimeout time.Duration // net.DialTimeout, defaults to 2 seconds - overridden by Timeout when that value is non-zero + Net string // if "tcp" or "tcp-tls" (DNS over TLS) a TCP query will be initiated, otherwise an UDP one (default is "" for UDP) + UDPSize uint16 // minimum receive buffer for UDP messages + TLSConfig *tls.Config // TLS connection configuration + Dialer *net.Dialer // a net.Dialer used to set local address, timeouts and more + // Timeout is a cumulative timeout for dial, write and read, defaults to 0 (disabled) - overrides DialTimeout, ReadTimeout, + // WriteTimeout when non-zero. Can be overridden with net.Dialer.Timeout (see Client.ExchangeWithDialer and + // Client.Dialer) or context.Context.Deadline (see the deprecated ExchangeContext) + Timeout time.Duration + DialTimeout time.Duration // net.DialTimeout, defaults to 2 seconds, or net.Dialer.Timeout if expiring earlier - overridden by Timeout when that value is non-zero ReadTimeout time.Duration // net.Conn.SetReadTimeout value for connections, defaults to 2 seconds - overridden by Timeout when that value is non-zero WriteTimeout time.Duration // net.Conn.SetWriteTimeout value for connections, defaults to 2 seconds - overridden by Timeout when that value is non-zero - TsigSecret map[string]string // secret(s) for Tsig map[], zonename must be fully qualified + TsigSecret map[string]string // secret(s) for Tsig map[], zonename must be in canonical form (lowercase, fqdn, see RFC 4034 Section 6.2) SingleInflight bool // if true suppress multiple outstanding queries for the same Qname, Qtype and Qclass group singleflight } @@ -44,91 +49,75 @@ type Client struct { // will it fall back to TCP in case of truncation. // See client.Exchange for more information on setting larger buffer sizes. func Exchange(m *Msg, a string) (r *Msg, err error) { - var co *Conn - co, err = DialTimeout("udp", a, dnsTimeout) - if err != nil { - return nil, err - } - - defer co.Close() + client := Client{Net: "udp"} + r, _, err = client.Exchange(m, a) + return r, err +} - opt := m.IsEdns0() - // If EDNS0 is used use that for size. - if opt != nil && opt.UDPSize() >= MinMsgSize { - co.UDPSize = opt.UDPSize() +func (c *Client) dialTimeout() time.Duration { + if c.Timeout != 0 { + return c.Timeout } - - co.SetWriteDeadline(time.Now().Add(dnsTimeout)) - if err = co.WriteMsg(m); err != nil { - return nil, err + if c.DialTimeout != 0 { + return c.DialTimeout } + return dnsTimeout +} - co.SetReadDeadline(time.Now().Add(dnsTimeout)) - r, err = co.ReadMsg() - if err == nil && r.Id != m.Id { - err = ErrId +func (c *Client) readTimeout() time.Duration { + if c.ReadTimeout != 0 { + return c.ReadTimeout } - return r, err + return dnsTimeout } -// ExchangeContext performs a synchronous UDP query, like Exchange. It -// additionally obeys deadlines from the passed Context. -func ExchangeContext(ctx context.Context, m *Msg, a string) (r *Msg, err error) { - // Combine context deadline with built-in timeout. Context chooses whichever - // is sooner. - timeoutCtx, cancel := context.WithTimeout(ctx, dnsTimeout) - defer cancel() - deadline, _ := timeoutCtx.Deadline() - - co := new(Conn) - dialer := net.Dialer{} - co.Conn, err = dialer.DialContext(timeoutCtx, "udp", a) - if err != nil { - return nil, err +func (c *Client) writeTimeout() time.Duration { + if c.WriteTimeout != 0 { + return c.WriteTimeout } + return dnsTimeout +} - defer co.Conn.Close() - - opt := m.IsEdns0() - // If EDNS0 is used use that for size. - if opt != nil && opt.UDPSize() >= MinMsgSize { - co.UDPSize = opt.UDPSize() +// Dial connects to the address on the named network. +func (c *Client) Dial(address string) (conn *Conn, err error) { + // create a new dialer with the appropriate timeout + var d net.Dialer + if c.Dialer == nil { + d = net.Dialer{} + } else { + d = net.Dialer(*c.Dialer) } + d.Timeout = c.getTimeoutForRequest(c.writeTimeout()) - co.SetWriteDeadline(deadline) - if err = co.WriteMsg(m); err != nil { - return nil, err - } + network := "udp" + useTLS := false - co.SetReadDeadline(deadline) - r, err = co.ReadMsg() - if err == nil && r.Id != m.Id { - err = ErrId + switch c.Net { + case "tcp-tls": + network = "tcp" + useTLS = true + case "tcp4-tls": + network = "tcp4" + useTLS = true + case "tcp6-tls": + network = "tcp6" + useTLS = true + default: + if c.Net != "" { + network = c.Net + } } - return r, err -} -// ExchangeConn performs a synchronous query. It sends the message m via the connection -// c and waits for a reply. The connection c is not closed by ExchangeConn. -// This function is going away, but can easily be mimicked: -// -// co := &dns.Conn{Conn: c} // c is your net.Conn -// co.WriteMsg(m) -// in, _ := co.ReadMsg() -// co.Close() -// -func ExchangeConn(c net.Conn, m *Msg) (r *Msg, err error) { - println("dns: this function is deprecated") - co := new(Conn) - co.Conn = c - if err = co.WriteMsg(m); err != nil { - return nil, err + conn = new(Conn) + if useTLS { + conn.Conn, err = tls.DialWithDialer(&d, network, address, c.TLSConfig) + } else { + conn.Conn, err = d.Dial(network, address) } - r, err = co.ReadMsg() - if err == nil && r.Id != m.Id { - err = ErrId + if err != nil { + return nil, err } - return r, err + return conn, nil } // Exchange performs a synchronous query. It sends the message m to the address @@ -142,22 +131,14 @@ func ExchangeConn(c net.Conn, m *Msg) (r *Msg, err error) { // It is up to the caller to create a message that allows for larger responses to be // returned. Specifically this means adding an EDNS0 OPT RR that will advertise a larger // buffer, see SetEdns0. Messages without an OPT RR will fallback to the historic limit -// of 512 bytes. -func (c *Client) Exchange(m *Msg, a string) (r *Msg, rtt time.Duration, err error) { - return c.ExchangeContext(context.Background(), m, a) -} - -// ExchangeContext acts like Exchange, but honors the deadline on the provided -// context, if present. If there is both a context deadline and a configured -// timeout on the client, the earliest of the two takes effect. -func (c *Client) ExchangeContext(ctx context.Context, m *Msg, a string) ( - r *Msg, - rtt time.Duration, - err error) { +// of 512 bytes +// To specify a local address or a timeout, the caller has to set the `Client.Dialer` +// attribute appropriately +func (c *Client) Exchange(m *Msg, address string) (r *Msg, rtt time.Duration, err error) { if !c.SingleInflight { - return c.exchange(ctx, m, a) + return c.exchange(m, address) } - // This adds a bunch of garbage, TODO(miek). + t := "nop" if t1, ok := TypeToString[m.Question[0].Qtype]; ok { t = t1 @@ -167,75 +148,18 @@ func (c *Client) ExchangeContext(ctx context.Context, m *Msg, a string) ( cl = cl1 } r, rtt, err, shared := c.group.Do(m.Question[0].Name+t+cl, func() (*Msg, time.Duration, error) { - return c.exchange(ctx, m, a) + return c.exchange(m, address) }) if r != nil && shared { r = r.Copy() } - if err != nil { - return r, rtt, err - } - return r, rtt, nil -} - -func (c *Client) dialTimeout() time.Duration { - if c.Timeout != 0 { - return c.Timeout - } - if c.DialTimeout != 0 { - return c.DialTimeout - } - return dnsTimeout + return r, rtt, err } -func (c *Client) readTimeout() time.Duration { - if c.ReadTimeout != 0 { - return c.ReadTimeout - } - return dnsTimeout -} - -func (c *Client) writeTimeout() time.Duration { - if c.WriteTimeout != 0 { - return c.WriteTimeout - } - return dnsTimeout -} - -func (c *Client) exchange(ctx context.Context, m *Msg, a string) (r *Msg, rtt time.Duration, err error) { +func (c *Client) exchange(m *Msg, a string) (r *Msg, rtt time.Duration, err error) { var co *Conn - network := "udp" - tls := false - - switch c.Net { - case "tcp-tls": - network = "tcp" - tls = true - case "tcp4-tls": - network = "tcp4" - tls = true - case "tcp6-tls": - network = "tcp6" - tls = true - default: - if c.Net != "" { - network = c.Net - } - } - - var deadline time.Time - if c.Timeout != 0 { - deadline = time.Now().Add(c.Timeout) - } - - dialDeadline := deadlineOrTimeoutOrCtx(ctx, deadline, c.dialTimeout()) - dialTimeout := dialDeadline.Sub(time.Now()) - if tls { - co, err = DialTimeoutWithTLS(network, a, c.TLSConfig, dialTimeout) - } else { - co, err = DialTimeout(network, a, dialTimeout) - } + co, err = c.Dial(a) if err != nil { return nil, 0, err @@ -253,12 +177,13 @@ func (c *Client) exchange(ctx context.Context, m *Msg, a string) (r *Msg, rtt ti } co.TsigSecret = c.TsigSecret - co.SetWriteDeadline(deadlineOrTimeoutOrCtx(ctx, deadline, c.writeTimeout())) + // write with the appropriate write timeout + co.SetWriteDeadline(time.Now().Add(c.getTimeoutForRequest(c.writeTimeout()))) if err = co.WriteMsg(m); err != nil { return nil, 0, err } - co.SetReadDeadline(deadlineOrTimeoutOrCtx(ctx, deadline, c.readTimeout())) + co.SetReadDeadline(time.Now().Add(c.getTimeoutForRequest(c.readTimeout()))) r, err = co.ReadMsg() if err == nil && r.Id != m.Id { err = ErrId @@ -267,8 +192,10 @@ func (c *Client) exchange(ctx context.Context, m *Msg, a string) (r *Msg, rtt ti } // ReadMsg reads a message from the connection co. -// If the received message contains a TSIG record the transaction -// signature is verified. +// If the received message contains a TSIG record the transaction signature +// is verified. This method always tries to return the message, however if an +// error is returned there are no guarantees that the returned message is a +// valid representation of the packet read. func (co *Conn) ReadMsg() (*Msg, error) { p, err := co.ReadMsgHeader(nil) if err != nil { @@ -277,13 +204,10 @@ func (co *Conn) ReadMsg() (*Msg, error) { m := new(Msg) if err := m.Unpack(p); err != nil { - // If ErrTruncated was returned, we still want to allow the user to use + // If an error was returned, we still want to allow the user to use // the message, but naively they can just check err if they don't want - // to use a truncated message - if err == ErrTruncated { - return m, err - } - return nil, err + // to use an erroneous message + return m, err } if t := m.IsTsig(); t != nil { if _, ok := co.TsigSecret[t.Hdr.Name]; !ok { @@ -352,7 +276,7 @@ func tcpMsgLen(t io.Reader) (int, error) { return 0, err } - // As seen with my local router/switch, retursn 1 byte on the above read, + // As seen with my local router/switch, returns 1 byte on the above read, // resulting a a ShortRead. Just write it out (instead of loop) and read the // other byte. if n == 1 { @@ -467,6 +391,24 @@ func (co *Conn) Write(p []byte) (n int, err error) { return n, err } +// Return the appropriate timeout for a specific request +func (c *Client) getTimeoutForRequest(timeout time.Duration) time.Duration { + var requestTimeout time.Duration + if c.Timeout != 0 { + requestTimeout = c.Timeout + } else { + requestTimeout = timeout + } + // net.Dialer.Timeout has priority if smaller than the timeouts computed so + // far + if c.Dialer != nil && c.Dialer.Timeout != 0 { + if c.Dialer.Timeout < requestTimeout { + requestTimeout = c.Dialer.Timeout + } + } + return requestTimeout +} + // Dial connects to the address on the named network. func Dial(network, address string) (conn *Conn, err error) { conn = new(Conn) @@ -477,10 +419,43 @@ func Dial(network, address string) (conn *Conn, err error) { return conn, nil } +// ExchangeContext performs a synchronous UDP query, like Exchange. It +// additionally obeys deadlines from the passed Context. +func ExchangeContext(ctx context.Context, m *Msg, a string) (r *Msg, err error) { + client := Client{Net: "udp"} + r, _, err = client.ExchangeContext(ctx, m, a) + // ignorint rtt to leave the original ExchangeContext API unchanged, but + // this function will go away + return r, err +} + +// ExchangeConn performs a synchronous query. It sends the message m via the connection +// c and waits for a reply. The connection c is not closed by ExchangeConn. +// This function is going away, but can easily be mimicked: +// +// co := &dns.Conn{Conn: c} // c is your net.Conn +// co.WriteMsg(m) +// in, _ := co.ReadMsg() +// co.Close() +// +func ExchangeConn(c net.Conn, m *Msg) (r *Msg, err error) { + println("dns: ExchangeConn: this function is deprecated") + co := new(Conn) + co.Conn = c + if err = co.WriteMsg(m); err != nil { + return nil, err + } + r, err = co.ReadMsg() + if err == nil && r.Id != m.Id { + err = ErrId + } + return r, err +} + // DialTimeout acts like Dial but takes a timeout. func DialTimeout(network, address string, timeout time.Duration) (conn *Conn, err error) { - conn = new(Conn) - conn.Conn, err = net.DialTimeout(network, address, timeout) + client := Client{Net: network, Dialer: &net.Dialer{Timeout: timeout}} + conn, err = client.Dial(address) if err != nil { return nil, err } @@ -489,8 +464,12 @@ func DialTimeout(network, address string, timeout time.Duration) (conn *Conn, er // DialWithTLS connects to the address on the named network with TLS. func DialWithTLS(network, address string, tlsConfig *tls.Config) (conn *Conn, err error) { - conn = new(Conn) - conn.Conn, err = tls.Dial(network, address, tlsConfig) + if !strings.HasSuffix(network, "-tls") { + network += "-tls" + } + client := Client{Net: network, TLSConfig: tlsConfig} + conn, err = client.Dial(address) + if err != nil { return nil, err } @@ -499,33 +478,29 @@ func DialWithTLS(network, address string, tlsConfig *tls.Config) (conn *Conn, er // DialTimeoutWithTLS acts like DialWithTLS but takes a timeout. func DialTimeoutWithTLS(network, address string, tlsConfig *tls.Config, timeout time.Duration) (conn *Conn, err error) { - var dialer net.Dialer - dialer.Timeout = timeout - - conn = new(Conn) - conn.Conn, err = tls.DialWithDialer(&dialer, network, address, tlsConfig) + if !strings.HasSuffix(network, "-tls") { + network += "-tls" + } + client := Client{Net: network, Dialer: &net.Dialer{Timeout: timeout}, TLSConfig: tlsConfig} + conn, err = client.Dial(address) if err != nil { return nil, err } return conn, nil } -// deadlineOrTimeout chooses between the provided deadline and timeout -// by always preferring the deadline so long as it's non-zero (regardless -// of which is bigger), and returns the equivalent deadline value. -func deadlineOrTimeout(deadline time.Time, timeout time.Duration) time.Time { - if deadline.IsZero() { - return time.Now().Add(timeout) - } - return deadline -} - -// deadlineOrTimeoutOrCtx returns the earliest of: a context deadline, or the -// output of deadlineOrtimeout. -func deadlineOrTimeoutOrCtx(ctx context.Context, deadline time.Time, timeout time.Duration) time.Time { - result := deadlineOrTimeout(deadline, timeout) - if ctxDeadline, ok := ctx.Deadline(); ok && ctxDeadline.Before(result) { - result = ctxDeadline +// ExchangeContext acts like Exchange, but honors the deadline on the provided +// context, if present. If there is both a context deadline and a configured +// timeout on the client, the earliest of the two takes effect. +func (c *Client) ExchangeContext(ctx context.Context, m *Msg, a string) (r *Msg, rtt time.Duration, err error) { + var timeout time.Duration + if deadline, ok := ctx.Deadline(); !ok { + timeout = 0 + } else { + timeout = deadline.Sub(time.Now()) } - return result + // not passing the context to the underlying calls, as the API does not support + // context. For timeouts you should set up Client.Dialer and call Client.Exchange. + c.Dialer = &net.Dialer{Timeout: timeout} + return c.Exchange(m, a) } diff --git a/vendor/github.com/miekg/dns/clientconfig.go b/vendor/github.com/miekg/dns/clientconfig.go index 0a1f5a9..a606ef6 100644 --- a/vendor/github.com/miekg/dns/clientconfig.go +++ b/vendor/github.com/miekg/dns/clientconfig.go @@ -2,6 +2,7 @@ package dns import ( "bufio" + "io" "os" "strconv" "strings" @@ -25,8 +26,13 @@ func ClientConfigFromFile(resolvconf string) (*ClientConfig, error) { return nil, err } defer file.Close() + return ClientConfigFromReader(file) +} + +// ClientConfigFromReader works like ClientConfigFromFile but takes an io.Reader as argument +func ClientConfigFromReader(resolvconf io.Reader) (*ClientConfig, error) { c := new(ClientConfig) - scanner := bufio.NewScanner(file) + scanner := bufio.NewScanner(resolvconf) c.Servers = make([]string, 0) c.Search = make([]string, 0) c.Port = "53" @@ -73,8 +79,10 @@ func ClientConfigFromFile(resolvconf string) (*ClientConfig, error) { switch { case len(s) >= 6 && s[:6] == "ndots:": n, _ := strconv.Atoi(s[6:]) - if n < 1 { - n = 1 + if n < 0 { + n = 0 + } else if n > 15 { + n = 15 } c.Ndots = n case len(s) >= 8 && s[:8] == "timeout:": diff --git a/vendor/github.com/miekg/dns/compress_generate.go b/vendor/github.com/miekg/dns/compress_generate.go index 1a301e9..87fb36f 100644 --- a/vendor/github.com/miekg/dns/compress_generate.go +++ b/vendor/github.com/miekg/dns/compress_generate.go @@ -18,8 +18,7 @@ import ( ) var packageHdr = ` -// *** DO NOT MODIFY *** -// AUTOGENERATED BY go generate from compress_generate.go +// Code generated by "go run compress_generate.go"; DO NOT EDIT. package dns @@ -51,8 +50,9 @@ func main() { fatalIfErr(err) scope := pkg.Scope() - domainTypes := map[string]bool{} // Types that have a domain name in them (either comressible or not). - cdomainTypes := map[string]bool{} // Types that have a compressible domain name in them (subset of domainType) + var domainTypes []string // Types that have a domain name in them (either compressible or not). + var cdomainTypes []string // Types that have a compressible domain name in them (subset of domainType) +Names: for _, name := range scope.Names() { o := scope.Lookup(name) if o == nil || !o.Exported() { @@ -73,21 +73,25 @@ func main() { for i := 1; i < st.NumFields(); i++ { if _, ok := st.Field(i).Type().(*types.Slice); ok { if st.Tag(i) == `dns:"domain-name"` { - domainTypes[o.Name()] = true + domainTypes = append(domainTypes, o.Name()) + continue Names } if st.Tag(i) == `dns:"cdomain-name"` { - cdomainTypes[o.Name()] = true - domainTypes[o.Name()] = true + cdomainTypes = append(cdomainTypes, o.Name()) + domainTypes = append(domainTypes, o.Name()) + continue Names } continue } switch { case st.Tag(i) == `dns:"domain-name"`: - domainTypes[o.Name()] = true + domainTypes = append(domainTypes, o.Name()) + continue Names case st.Tag(i) == `dns:"cdomain-name"`: - cdomainTypes[o.Name()] = true - domainTypes[o.Name()] = true + cdomainTypes = append(cdomainTypes, o.Name()) + domainTypes = append(domainTypes, o.Name()) + continue Names } } } @@ -99,7 +103,7 @@ func main() { fmt.Fprint(b, "func compressionLenHelperType(c map[string]int, r RR) {\n") fmt.Fprint(b, "switch x := r.(type) {\n") - for name, _ := range domainTypes { + for _, name := range domainTypes { o := scope.Lookup(name) st, _ := getTypeStruct(o.Type(), scope) @@ -135,7 +139,7 @@ func main() { fmt.Fprint(b, "func compressionLenSearchType(c map[string]int, r RR) (int, bool) {\n") fmt.Fprint(b, "switch x := r.(type) {\n") - for name, _ := range cdomainTypes { + for _, name := range cdomainTypes { o := scope.Lookup(name) st, _ := getTypeStruct(o.Type(), scope) diff --git a/vendor/github.com/miekg/dns/dns.go b/vendor/github.com/miekg/dns/dns.go index b329228..5133eac 100644 --- a/vendor/github.com/miekg/dns/dns.go +++ b/vendor/github.com/miekg/dns/dns.go @@ -6,9 +6,12 @@ const ( year68 = 1 << 31 // For RFC1982 (Serial Arithmetic) calculations in 32 bits. defaultTtl = 3600 // Default internal TTL. - DefaultMsgSize = 4096 // DefaultMsgSize is the standard default for messages larger than 512 bytes. - MinMsgSize = 512 // MinMsgSize is the minimal size of a DNS packet. - MaxMsgSize = 65535 // MaxMsgSize is the largest possible DNS packet. + // DefaultMsgSize is the standard default for messages larger than 512 bytes. + DefaultMsgSize = 4096 + // MinMsgSize is the minimal size of a DNS packet. + MinMsgSize = 512 + // MaxMsgSize is the largest possible DNS packet. + MaxMsgSize = 65535 ) // Error represents a DNS error. diff --git a/vendor/github.com/miekg/dns/dnssec.go b/vendor/github.com/miekg/dns/dnssec.go index 3bd5538..ac9fdd4 100644 --- a/vendor/github.com/miekg/dns/dnssec.go +++ b/vendor/github.com/miekg/dns/dnssec.go @@ -19,6 +19,8 @@ import ( "sort" "strings" "time" + + "golang.org/x/crypto/ed25519" ) // DNSSEC encryption algorithm codes. @@ -38,6 +40,8 @@ const ( ECCGOST ECDSAP256SHA256 ECDSAP384SHA384 + ED25519 + ED448 INDIRECT uint8 = 252 PRIVATEDNS uint8 = 253 // Private (experimental keys) PRIVATEOID uint8 = 254 @@ -56,6 +60,8 @@ var AlgorithmToString = map[uint8]string{ ECCGOST: "ECC-GOST", ECDSAP256SHA256: "ECDSAP256SHA256", ECDSAP384SHA384: "ECDSAP384SHA384", + ED25519: "ED25519", + ED448: "ED448", INDIRECT: "INDIRECT", PRIVATEDNS: "PRIVATEDNS", PRIVATEOID: "PRIVATEOID", @@ -73,6 +79,7 @@ var AlgorithmToHash = map[uint8]crypto.Hash{ ECDSAP256SHA256: crypto.SHA256, ECDSAP384SHA384: crypto.SHA384, RSASHA512: crypto.SHA512, + ED25519: crypto.Hash(0), } // DNSSEC hashing algorithm codes. @@ -301,16 +308,32 @@ func (rr *RRSIG) Sign(k crypto.Signer, rrset []RR) error { return ErrAlg } - h := hash.New() - h.Write(signdata) - h.Write(wire) + switch rr.Algorithm { + case ED25519: + // ed25519 signs the raw message and performs hashing internally. + // All other supported signature schemes operate over the pre-hashed + // message, and thus ed25519 must be handled separately here. + // + // The raw message is passed directly into sign and crypto.Hash(0) is + // used to signal to the crypto.Signer that the data has not been hashed. + signature, err := sign(k, append(signdata, wire...), crypto.Hash(0), rr.Algorithm) + if err != nil { + return err + } - signature, err := sign(k, h.Sum(nil), hash, rr.Algorithm) - if err != nil { - return err - } + rr.Signature = toBase64(signature) + default: + h := hash.New() + h.Write(signdata) + h.Write(wire) + + signature, err := sign(k, h.Sum(nil), hash, rr.Algorithm) + if err != nil { + return err + } - rr.Signature = toBase64(signature) + rr.Signature = toBase64(signature) + } return nil } @@ -352,6 +375,9 @@ func sign(k crypto.Signer, hashed []byte, hash crypto.Hash, alg uint8) ([]byte, // signature = append(signature, intToBytes(r1, 20)...) // signature = append(signature, intToBytes(s1, 20)...) // rr.Signature = signature + + case ED25519: + return signature, nil } return nil, ErrAlg @@ -456,6 +482,17 @@ func (rr *RRSIG) Verify(k *DNSKEY, rrset []RR) error { } return ErrSig + case ED25519: + pubkey := k.publicKeyED25519() + if pubkey == nil { + return ErrKey + } + + if ed25519.Verify(pubkey, append(signeddata, wire...), sigbuf) { + return nil + } + return ErrSig + default: return ErrAlg } @@ -578,6 +615,17 @@ func (k *DNSKEY) publicKeyDSA() *dsa.PublicKey { return pubkey } +func (k *DNSKEY) publicKeyED25519() ed25519.PublicKey { + keybuf, err := fromBase64([]byte(k.PublicKey)) + if err != nil { + return nil + } + if len(keybuf) != ed25519.PublicKeySize { + return nil + } + return keybuf +} + type wireSlice [][]byte func (p wireSlice) Len() int { return len(p) } @@ -615,6 +663,10 @@ func rawSignatureData(rrset []RR, s *RRSIG) (buf []byte, err error) { switch x := r1.(type) { case *NS: x.Ns = strings.ToLower(x.Ns) + case *MD: + x.Md = strings.ToLower(x.Md) + case *MF: + x.Mf = strings.ToLower(x.Mf) case *CNAME: x.Target = strings.ToLower(x.Target) case *SOA: @@ -633,6 +685,18 @@ func rawSignatureData(rrset []RR, s *RRSIG) (buf []byte, err error) { x.Email = strings.ToLower(x.Email) case *MX: x.Mx = strings.ToLower(x.Mx) + case *RP: + x.Mbox = strings.ToLower(x.Mbox) + x.Txt = strings.ToLower(x.Txt) + case *AFSDB: + x.Hostname = strings.ToLower(x.Hostname) + case *RT: + x.Host = strings.ToLower(x.Host) + case *SIG: + x.SignerName = strings.ToLower(x.SignerName) + case *PX: + x.Map822 = strings.ToLower(x.Map822) + x.Mapx400 = strings.ToLower(x.Mapx400) case *NAPTR: x.Replacement = strings.ToLower(x.Replacement) case *KX: diff --git a/vendor/github.com/miekg/dns/dnssec_keygen.go b/vendor/github.com/miekg/dns/dnssec_keygen.go index 5e4b774..33e913a 100644 --- a/vendor/github.com/miekg/dns/dnssec_keygen.go +++ b/vendor/github.com/miekg/dns/dnssec_keygen.go @@ -8,6 +8,8 @@ import ( "crypto/rand" "crypto/rsa" "math/big" + + "golang.org/x/crypto/ed25519" ) // Generate generates a DNSKEY of the given bit size. @@ -38,6 +40,10 @@ func (k *DNSKEY) Generate(bits int) (crypto.PrivateKey, error) { if bits != 384 { return nil, ErrKeySize } + case ED25519: + if bits != 256 { + return nil, ErrKeySize + } } switch k.Algorithm { @@ -75,6 +81,13 @@ func (k *DNSKEY) Generate(bits int) (crypto.PrivateKey, error) { } k.setPublicKeyECDSA(priv.PublicKey.X, priv.PublicKey.Y) return priv, nil + case ED25519: + pub, priv, err := ed25519.GenerateKey(rand.Reader) + if err != nil { + return nil, err + } + k.setPublicKeyED25519(pub) + return priv, nil default: return nil, ErrAlg } @@ -117,6 +130,15 @@ func (k *DNSKEY) setPublicKeyDSA(_Q, _P, _G, _Y *big.Int) bool { return true } +// Set the public key for Ed25519 +func (k *DNSKEY) setPublicKeyED25519(_K ed25519.PublicKey) bool { + if _K == nil { + return false + } + k.PublicKey = toBase64(_K) + return true +} + // Set the public key (the values E and N) for RSA // RFC 3110: Section 2. RSA Public KEY Resource Records func exponentToBuf(_E int) []byte { diff --git a/vendor/github.com/miekg/dns/dnssec_keyscan.go b/vendor/github.com/miekg/dns/dnssec_keyscan.go index 4f8d830..e2d9d8f 100644 --- a/vendor/github.com/miekg/dns/dnssec_keyscan.go +++ b/vendor/github.com/miekg/dns/dnssec_keyscan.go @@ -1,6 +1,7 @@ package dns import ( + "bytes" "crypto" "crypto/dsa" "crypto/ecdsa" @@ -9,6 +10,8 @@ import ( "math/big" "strconv" "strings" + + "golang.org/x/crypto/ed25519" ) // NewPrivateKey returns a PrivateKey by parsing the string s. @@ -86,6 +89,8 @@ func (k *DNSKEY) ReadPrivateKey(q io.Reader, file string) (crypto.PrivateKey, er } priv.PublicKey = *pub return priv, nil + case ED25519: + return readPrivateKeyED25519(m) default: return nil, ErrPrivKey } @@ -166,13 +171,56 @@ func readPrivateKeyECDSA(m map[string]string) (*ecdsa.PrivateKey, error) { return p, nil } +func readPrivateKeyED25519(m map[string]string) (ed25519.PrivateKey, error) { + var p ed25519.PrivateKey + // TODO: validate that the required flags are present + for k, v := range m { + switch k { + case "privatekey": + p1, err := fromBase64([]byte(v)) + if err != nil { + return nil, err + } + if len(p1) != 32 { + return nil, ErrPrivKey + } + // RFC 8080 and Golang's x/crypto/ed25519 differ as to how the + // private keys are represented. RFC 8080 specifies that private + // keys be stored solely as the seed value (p1 above) while the + // ed25519 package represents them as the seed value concatenated + // to the public key, which is derived from the seed value. + // + // ed25519.GenerateKey reads exactly 32 bytes from the passed in + // io.Reader and uses them as the seed. It also derives the + // public key and produces a compatible private key. + _, p, err = ed25519.GenerateKey(bytes.NewReader(p1)) + if err != nil { + return nil, err + } + case "created", "publish", "activate": + /* not used in Go (yet) */ + } + } + return p, nil +} + // parseKey reads a private key from r. It returns a map[string]string, // with the key-value pairs, or an error when the file is not correct. func parseKey(r io.Reader, file string) (map[string]string, error) { - s := scanInit(r) + s, cancel := scanInit(r) m := make(map[string]string) c := make(chan lex) k := "" + defer func() { + cancel() + // zlexer can send up to two tokens, the next one and possibly 1 remainders. + // Do a non-blocking read. + _, ok := <-c + _, ok = <-c + if !ok { + // too bad + } + }() // Start the lexer go klexer(s, c) for l := range c { diff --git a/vendor/github.com/miekg/dns/dnssec_privkey.go b/vendor/github.com/miekg/dns/dnssec_privkey.go index 56f3ea9..46f3215 100644 --- a/vendor/github.com/miekg/dns/dnssec_privkey.go +++ b/vendor/github.com/miekg/dns/dnssec_privkey.go @@ -7,6 +7,8 @@ import ( "crypto/rsa" "math/big" "strconv" + + "golang.org/x/crypto/ed25519" ) const format = "Private-key-format: v1.3\n" @@ -79,6 +81,12 @@ func (r *DNSKEY) PrivateKeyString(p crypto.PrivateKey) string { "Private_value(x): " + priv + "\n" + "Public_value(y): " + pub + "\n" + case ed25519.PrivateKey: + private := toBase64(p[:32]) + return format + + "Algorithm: " + algorithm + "\n" + + "PrivateKey: " + private + "\n" + default: return "" } diff --git a/vendor/github.com/miekg/dns/doc.go b/vendor/github.com/miekg/dns/doc.go index e38753d..1d81147 100644 --- a/vendor/github.com/miekg/dns/doc.go +++ b/vendor/github.com/miekg/dns/doc.go @@ -1,7 +1,7 @@ /* Package dns implements a full featured interface to the Domain Name System. Server- and client-side programming is supported. -The package allows complete control over what is send out to the DNS. The package +The package allows complete control over what is sent out to the DNS. The package API follows the less-is-more principle, by presenting a small, clean interface. The package dns supports (asynchronous) querying/replying, incoming/outgoing zone transfers, @@ -14,7 +14,7 @@ Basic usage pattern for creating a new resource record: r := new(dns.MX) r.Hdr = dns.RR_Header{Name: "miek.nl.", Rrtype: dns.TypeMX, - Class: dns.ClassINET, Ttl: 3600} + Class: dns.ClassINET, Ttl: 3600} r.Preference = 10 r.Mx = "mx.miek.nl." @@ -22,16 +22,16 @@ Or directly from a string: mx, err := dns.NewRR("miek.nl. 3600 IN MX 10 mx.miek.nl.") -Or when the default TTL (3600) and class (IN) suit you: +Or when the default origin (.) and TTL (3600) and class (IN) suit you: - mx, err := dns.NewRR("miek.nl. MX 10 mx.miek.nl.") + mx, err := dns.NewRR("miek.nl MX 10 mx.miek.nl") Or even: mx, err := dns.NewRR("$ORIGIN nl.\nmiek 1H IN MX 10 mx.miek") In the DNS messages are exchanged, these messages contain resource -records (sets). Use pattern for creating a message: +records (sets). Use pattern for creating a message: m := new(dns.Msg) m.SetQuestion("miek.nl.", dns.TypeMX) @@ -51,7 +51,7 @@ The following is slightly more verbose, but more flexible: m1.Question = make([]dns.Question, 1) m1.Question[0] = dns.Question{"miek.nl.", dns.TypeMX, dns.ClassINET} -After creating a message it can be send. +After creating a message it can be sent. Basic use pattern for synchronous querying the DNS at a server configured on 127.0.0.1 and port 53: @@ -63,7 +63,23 @@ class) is as easy as setting: c.SingleInflight = true -If these "advanced" features are not needed, a simple UDP query can be send, +More advanced options are available using a net.Dialer and the corresponding API. +For example it is possible to set a timeout, or to specify a source IP address +and port to use for the connection: + + c := new(dns.Client) + laddr := net.UDPAddr{ + IP: net.ParseIP("[::1]"), + Port: 12345, + Zone: "", + } + d := net.Dialer{ + Timeout: 200 * time.Millisecond, + LocalAddr: &laddr, + } + in, rtt, err := c.ExchangeWithDialer(&d, m1, "8.8.8.8:53") + +If these "advanced" features are not needed, a simple UDP query can be sent, with: in, err := dns.Exchange(m1, "127.0.0.1:53") @@ -152,6 +168,11 @@ Basic use pattern when querying with a TSIG name "axfr." (note that these key na must be fully qualified - as they are domain names) and the base64 secret "so6ZGir4GPAqINNh9U5c3A==": +If an incoming message contains a TSIG record it MUST be the last record in +the additional section (RFC2845 3.2). This means that you should make the +call to SetTsig last, right before executing the query. If you make any +changes to the RRset after calling SetTsig() the signature will be incorrect. + c := new(dns.Client) c.TsigSecret = map[string]string{"axfr.": "so6ZGir4GPAqINNh9U5c3A=="} m := new(dns.Msg) diff --git a/vendor/github.com/miekg/dns/edns.go b/vendor/github.com/miekg/dns/edns.go index dbff371..6f9d2ea 100644 --- a/vendor/github.com/miekg/dns/edns.go +++ b/vendor/github.com/miekg/dns/edns.go @@ -13,18 +13,18 @@ import ( const ( EDNS0LLQ = 0x1 // long lived queries: http://tools.ietf.org/html/draft-sekar-dns-llq-01 EDNS0UL = 0x2 // update lease draft: http://files.dns-sd.org/draft-sekar-dns-ul.txt - EDNS0NSID = 0x3 // nsid (RFC5001) + EDNS0NSID = 0x3 // nsid (See RFC 5001) EDNS0DAU = 0x5 // DNSSEC Algorithm Understood EDNS0DHU = 0x6 // DS Hash Understood EDNS0N3U = 0x7 // NSEC3 Hash Understood - EDNS0SUBNET = 0x8 // client-subnet (RFC6891) + EDNS0SUBNET = 0x8 // client-subnet (See RFC 7871) EDNS0EXPIRE = 0x9 // EDNS0 expire EDNS0COOKIE = 0xa // EDNS0 Cookie - EDNS0TCPKEEPALIVE = 0xb // EDNS0 tcp keep alive (RFC7828) - EDNS0SUBNETDRAFT = 0x50fa // Don't use! Use EDNS0SUBNET - EDNS0LOCALSTART = 0xFDE9 // Beginning of range reserved for local/experimental use (RFC6891) - EDNS0LOCALEND = 0xFFFE // End of range reserved for local/experimental use (RFC6891) - _DO = 1 << 15 // dnssec ok + EDNS0TCPKEEPALIVE = 0xb // EDNS0 tcp keep alive (See RFC 7828) + EDNS0PADDING = 0xc // EDNS0 padding (See RFC 7830) + EDNS0LOCALSTART = 0xFDE9 // Beginning of range reserved for local/experimental use (See RFC 6891) + EDNS0LOCALEND = 0xFFFE // End of range reserved for local/experimental use (See RFC 6891) + _DO = 1 << 15 // DNSSEC OK ) // OPT is the EDNS0 RR appended to messages to convey extra (meta) information. @@ -57,9 +57,6 @@ func (rr *OPT) String() string { } case *EDNS0_SUBNET: s += "\n; SUBNET: " + o.String() - if o.(*EDNS0_SUBNET).DraftOption { - s += " (draft)" - } case *EDNS0_COOKIE: s += "\n; COOKIE: " + o.String() case *EDNS0_UL: @@ -74,6 +71,8 @@ func (rr *OPT) String() string { s += "\n; NSEC3 HASH UNDERSTOOD: " + o.String() case *EDNS0_LOCAL: s += "\n; LOCAL OPT: " + o.String() + case *EDNS0_PADDING: + s += "\n; PADDING: " + o.String() } } return s @@ -103,15 +102,12 @@ func (rr *OPT) SetVersion(v uint8) { // ExtendedRcode returns the EDNS extended RCODE field (the upper 8 bits of the TTL). func (rr *OPT) ExtendedRcode() int { - return int((rr.Hdr.Ttl&0xFF000000)>>24) + 15 + return int((rr.Hdr.Ttl & 0xFF000000) >> 24) } // SetExtendedRcode sets the EDNS extended RCODE field. func (rr *OPT) SetExtendedRcode(v uint8) { - if v < RcodeBadVers { // Smaller than 16.. Use the 4 bits you have! - return - } - rr.Hdr.Ttl = rr.Hdr.Ttl&0x00FFFFFF | (uint32(v-15) << 24) + rr.Hdr.Ttl = rr.Hdr.Ttl&0x00FFFFFF | (uint32(v) << 24) } // UDPSize returns the UDP buffer size. @@ -182,12 +178,13 @@ func (e *EDNS0_NSID) pack() ([]byte, error) { return h, nil } -func (e *EDNS0_NSID) Option() uint16 { return EDNS0NSID } +// Option implements the EDNS0 interface. +func (e *EDNS0_NSID) Option() uint16 { return EDNS0NSID } // Option returns the option code. func (e *EDNS0_NSID) unpack(b []byte) error { e.Nsid = hex.EncodeToString(b); return nil } func (e *EDNS0_NSID) String() string { return string(e.Nsid) } // EDNS0_SUBNET is the subnet option that is used to give the remote nameserver -// an idea of where the client lives. It can then give back a different +// an idea of where the client lives. See RFC 7871. It can then give back a different // answer depending on the location or network topology. // Basic use pattern for creating an subnet option: // @@ -203,25 +200,19 @@ func (e *EDNS0_NSID) String() string { return string(e.Nsid) } // // e.Address = net.ParseIP("2001:7b8:32a::2") // for IPV6 // o.Option = append(o.Option, e) // -// Note: the spec (draft-ietf-dnsop-edns-client-subnet-00) has some insane logic -// for which netmask applies to the address. This code will parse all the -// available bits when unpacking (up to optlen). When packing it will apply -// SourceNetmask. If you need more advanced logic, patches welcome and good luck. +// This code will parse all the available bits when unpacking (up to optlen). +// When packing it will apply SourceNetmask. If you need more advanced logic, +// patches welcome and good luck. type EDNS0_SUBNET struct { Code uint16 // Always EDNS0SUBNET Family uint16 // 1 for IP, 2 for IP6 SourceNetmask uint8 SourceScope uint8 Address net.IP - DraftOption bool // Set to true if using the old (0x50fa) option code } -func (e *EDNS0_SUBNET) Option() uint16 { - if e.DraftOption { - return EDNS0SUBNETDRAFT - } - return EDNS0SUBNET -} +// Option implements the EDNS0 interface. +func (e *EDNS0_SUBNET) Option() uint16 { return EDNS0SUBNET } func (e *EDNS0_SUBNET) pack() ([]byte, error) { b := make([]byte, 4) @@ -229,6 +220,12 @@ func (e *EDNS0_SUBNET) pack() ([]byte, error) { b[2] = e.SourceNetmask b[3] = e.SourceScope switch e.Family { + case 0: + // "dig" sets AddressFamily to 0 if SourceNetmask is also 0 + // We might don't need to complain either + if e.SourceNetmask != 0 { + return nil, errors.New("dns: bad address family") + } case 1: if e.SourceNetmask > net.IPv4len*8 { return nil, errors.New("dns: bad netmask") @@ -263,6 +260,13 @@ func (e *EDNS0_SUBNET) unpack(b []byte) error { e.SourceNetmask = b[2] e.SourceScope = b[3] switch e.Family { + case 0: + // "dig" sets AddressFamily to 0 if SourceNetmask is also 0 + // It's okay to accept such a packet + if e.SourceNetmask != 0 { + return errors.New("dns: bad address family") + } + e.Address = net.IPv4(0, 0, 0, 0) case 1: if e.SourceNetmask > net.IPv4len*8 || e.SourceScope > net.IPv4len*8 { return errors.New("dns: bad netmask") @@ -332,6 +336,7 @@ func (e *EDNS0_COOKIE) pack() ([]byte, error) { return h, nil } +// Option implements the EDNS0 interface. func (e *EDNS0_COOKIE) Option() uint16 { return EDNS0COOKIE } func (e *EDNS0_COOKIE) unpack(b []byte) error { e.Cookie = hex.EncodeToString(b); return nil } func (e *EDNS0_COOKIE) String() string { return e.Cookie } @@ -353,6 +358,7 @@ type EDNS0_UL struct { Lease uint32 } +// Option implements the EDNS0 interface. func (e *EDNS0_UL) Option() uint16 { return EDNS0UL } func (e *EDNS0_UL) String() string { return strconv.FormatUint(uint64(e.Lease), 10) } @@ -382,6 +388,7 @@ type EDNS0_LLQ struct { LeaseLife uint32 } +// Option implements the EDNS0 interface. func (e *EDNS0_LLQ) Option() uint16 { return EDNS0LLQ } func (e *EDNS0_LLQ) pack() ([]byte, error) { @@ -413,11 +420,13 @@ func (e *EDNS0_LLQ) String() string { return s } +// EDNS0_DUA implements the EDNS0 "DNSSEC Algorithm Understood" option. See RFC 6975. type EDNS0_DAU struct { Code uint16 // Always EDNS0DAU AlgCode []uint8 } +// Option implements the EDNS0 interface. func (e *EDNS0_DAU) Option() uint16 { return EDNS0DAU } func (e *EDNS0_DAU) pack() ([]byte, error) { return e.AlgCode, nil } func (e *EDNS0_DAU) unpack(b []byte) error { e.AlgCode = b; return nil } @@ -434,11 +443,13 @@ func (e *EDNS0_DAU) String() string { return s } +// EDNS0_DHU implements the EDNS0 "DS Hash Understood" option. See RFC 6975. type EDNS0_DHU struct { Code uint16 // Always EDNS0DHU AlgCode []uint8 } +// Option implements the EDNS0 interface. func (e *EDNS0_DHU) Option() uint16 { return EDNS0DHU } func (e *EDNS0_DHU) pack() ([]byte, error) { return e.AlgCode, nil } func (e *EDNS0_DHU) unpack(b []byte) error { e.AlgCode = b; return nil } @@ -455,11 +466,13 @@ func (e *EDNS0_DHU) String() string { return s } +// EDNS0_N3U implements the EDNS0 "NSEC3 Hash Understood" option. See RFC 6975. type EDNS0_N3U struct { Code uint16 // Always EDNS0N3U AlgCode []uint8 } +// Option implements the EDNS0 interface. func (e *EDNS0_N3U) Option() uint16 { return EDNS0N3U } func (e *EDNS0_N3U) pack() ([]byte, error) { return e.AlgCode, nil } func (e *EDNS0_N3U) unpack(b []byte) error { e.AlgCode = b; return nil } @@ -477,11 +490,13 @@ func (e *EDNS0_N3U) String() string { return s } +// EDNS0_EXPIRE implementes the EDNS0 option as described in RFC 7314. type EDNS0_EXPIRE struct { Code uint16 // Always EDNS0EXPIRE Expire uint32 } +// Option implements the EDNS0 interface. func (e *EDNS0_EXPIRE) Option() uint16 { return EDNS0EXPIRE } func (e *EDNS0_EXPIRE) String() string { return strconv.FormatUint(uint64(e.Expire), 10) } @@ -520,6 +535,7 @@ type EDNS0_LOCAL struct { Data []byte } +// Option implements the EDNS0 interface. func (e *EDNS0_LOCAL) Option() uint16 { return e.Code } func (e *EDNS0_LOCAL) String() string { return strconv.FormatInt(int64(e.Code), 10) + ":0x" + hex.EncodeToString(e.Data) @@ -551,6 +567,7 @@ type EDNS0_TCP_KEEPALIVE struct { Timeout uint16 // an idle timeout value for the TCP connection, specified in units of 100 milliseconds, encoded in network byte order. } +// Option implements the EDNS0 interface. func (e *EDNS0_TCP_KEEPALIVE) Option() uint16 { return EDNS0TCPKEEPALIVE } func (e *EDNS0_TCP_KEEPALIVE) pack() ([]byte, error) { @@ -595,3 +612,16 @@ func (e *EDNS0_TCP_KEEPALIVE) String() (s string) { } return } + +// EDNS0_PADDING option is used to add padding to a request/response. The default +// value of padding SHOULD be 0x0 but other values MAY be used, for instance if +// compression is applied before encryption which may break signatures. +type EDNS0_PADDING struct { + Padding []byte +} + +// Option implements the EDNS0 interface. +func (e *EDNS0_PADDING) Option() uint16 { return EDNS0PADDING } +func (e *EDNS0_PADDING) pack() ([]byte, error) { return e.Padding, nil } +func (e *EDNS0_PADDING) unpack(b []byte) error { e.Padding = b; return nil } +func (e *EDNS0_PADDING) String() string { return fmt.Sprintf("%0X", e.Padding) } diff --git a/vendor/github.com/miekg/dns/fuzz.go b/vendor/github.com/miekg/dns/fuzz.go new file mode 100644 index 0000000..a8a0918 --- /dev/null +++ b/vendor/github.com/miekg/dns/fuzz.go @@ -0,0 +1,23 @@ +// +build fuzz + +package dns + +func Fuzz(data []byte) int { + msg := new(Msg) + + if err := msg.Unpack(data); err != nil { + return 0 + } + if _, err := msg.Pack(); err != nil { + return 0 + } + + return 1 +} + +func FuzzNewRR(data []byte) int { + if _, err := NewRR(string(data)); err != nil { + return 0 + } + return 1 +} diff --git a/vendor/github.com/miekg/dns/labels.go b/vendor/github.com/miekg/dns/labels.go index 9538d9c..760b89e 100644 --- a/vendor/github.com/miekg/dns/labels.go +++ b/vendor/github.com/miekg/dns/labels.go @@ -1,7 +1,5 @@ package dns -import "strings" - // Holds a bunch of helper functions for dealing with labels. // SplitDomainName splits a name string into it's labels. @@ -44,7 +42,7 @@ func SplitDomainName(s string) (labels []string) { // CompareDomainName compares the names s1 and s2 and // returns how many labels they have in common starting from the *right*. -// The comparison stops at the first inequality. The names are not downcased +// The comparison stops at the first inequality. The names are downcased // before the comparison. // // www.miek.nl. and miek.nl. have two labels in common: miek and nl @@ -52,24 +50,21 @@ func SplitDomainName(s string) (labels []string) { // // s1 and s2 must be syntactically valid domain names. func CompareDomainName(s1, s2 string) (n int) { - s1, s2 = strings.ToLower(s1), strings.ToLower(s2) - s1 = Fqdn(s1) - s2 = Fqdn(s2) - l1 := Split(s1) - l2 := Split(s2) - // the first check: root label - if l1 == nil || l2 == nil { - return + if s1 == "." || s2 == "." { + return 0 } + l1 := Split(s1) + l2 := Split(s2) + j1 := len(l1) - 1 // end i1 := len(l1) - 2 // start j2 := len(l2) - 1 i2 := len(l2) - 2 // the second check can be done here: last/only label // before we fall through into the for-loop below - if s1[l1[j1]:] == s2[l2[j2]:] { + if equal(s1[l1[j1]:], s2[l2[j2]:]) { n++ } else { return @@ -78,7 +73,7 @@ func CompareDomainName(s1, s2 string) (n int) { if i1 < 0 || i2 < 0 { break } - if s1[l1[i1]:l1[j1]] == s2[l2[i2]:l2[j2]] { + if equal(s1[l1[i1]:l1[j1]], s2[l2[i2]:l2[j2]]) { n++ } else { break @@ -169,3 +164,28 @@ func PrevLabel(s string, n int) (i int, start bool) { } return lab[len(lab)-n], false } + +// equal compares a and b while ignoring case. It returns true when equal otherwise false. +func equal(a, b string) bool { + // might be lifted into API function. + la := len(a) + lb := len(b) + if la != lb { + return false + } + + for i := la - 1; i >= 0; i-- { + ai := a[i] + bi := b[i] + if ai >= 'A' && ai <= 'Z' { + ai |= ('a' - 'A') + } + if bi >= 'A' && bi <= 'Z' { + bi |= ('a' - 'A') + } + if ai != bi { + return false + } + } + return true +} diff --git a/vendor/github.com/miekg/dns/msg.go b/vendor/github.com/miekg/dns/msg.go index 605fe6c..975dde7 100644 --- a/vendor/github.com/miekg/dns/msg.go +++ b/vendor/github.com/miekg/dns/msg.go @@ -26,6 +26,7 @@ const ( maxDomainNameWireOctets = 255 // See RFC 1035 section 2.3.4 ) +// Errors defined in this package. var ( ErrAlg error = &Error{err: "bad algorithm"} // ErrAlg indicates an error with the (DNSSEC) algorithm. ErrAuth error = &Error{err: "bad authentication"} // ErrAuth indicates an error in the TSIG authentication. @@ -57,7 +58,7 @@ var ( // For instance, to make it return a static value: // // dns.Id = func() uint16 { return 3 } -var Id func() uint16 = id +var Id = id var ( idLock sync.Mutex @@ -360,7 +361,7 @@ Loop: case '"', '\\': s = append(s, '\\', b) // presentation-format \X escapes add an extra byte - maxLen += 1 + maxLen++ default: if b < 32 || b >= 127 { // unprintable, use \DDD var buf [3]byte @@ -611,8 +612,8 @@ func UnpackRR(msg []byte, off int) (rr RR, off1 int, err error) { // If we cannot unpack the whole array, then it will return nil func unpackRRslice(l int, msg []byte, off int) (dst1 []RR, off1 int, err error) { var r RR - // Optimistically make dst be the length that was sent - dst := make([]RR, 0, l) + // Don't pre-allocate, l may be under attacker control + var dst []RR for i := 0; i < l; i++ { off1 := off r, off, err = UnpackRR(msg, off) @@ -810,13 +811,19 @@ func (dns *Msg) Unpack(msg []byte) (err error) { dns.CheckingDisabled = (dh.Bits & _CD) != 0 dns.Rcode = int(dh.Bits & 0xF) + // If we are at the end of the message we should return *just* the + // header. This can still be useful to the caller. 9.9.9.9 sends these + // when responding with REFUSED for instance. if off == len(msg) { - return ErrTruncated + // reset sections before returning + dns.Question, dns.Answer, dns.Ns, dns.Extra = nil, nil, nil, nil + return nil } - // Optimistically use the count given to us in the header - dns.Question = make([]Question, 0, int(dh.Qdcount)) - + // Qdcount, Ancount, Nscount, Arcount can't be trusted, as they are + // attacker controlled. This means we can't use them to pre-allocate + // slices. + dns.Question = nil for i := 0; i < int(dh.Qdcount); i++ { off1 := off var q Question @@ -913,67 +920,55 @@ func (dns *Msg) Len() int { return compressedLen(dns, dns.Compress) } func compressedLen(dns *Msg, compress bool) int { // We always return one more than needed. l := 12 // Message header is always 12 bytes - compression := map[string]int{} - - for i := 0; i < len(dns.Question); i++ { - l += dns.Question[i].len() - if compress { - compressionLenHelper(compression, dns.Question[i].Name) + if compress { + compression := map[string]int{} + for _, r := range dns.Question { + l += r.len() + compressionLenHelper(compression, r.Name) } - } - for i := 0; i < len(dns.Answer); i++ { - if dns.Answer[i] == nil { - continue + l += compressionLenSlice(compression, dns.Answer) + l += compressionLenSlice(compression, dns.Ns) + l += compressionLenSlice(compression, dns.Extra) + } else { + for _, r := range dns.Question { + l += r.len() } - l += dns.Answer[i].len() - if compress { - k, ok := compressionLenSearch(compression, dns.Answer[i].Header().Name) - if ok { - l += 1 - k - } - compressionLenHelper(compression, dns.Answer[i].Header().Name) - k, ok = compressionLenSearchType(compression, dns.Answer[i]) - if ok { - l += 1 - k + for _, r := range dns.Answer { + if r != nil { + l += r.len() } - compressionLenHelperType(compression, dns.Answer[i]) - } - } - for i := 0; i < len(dns.Ns); i++ { - if dns.Ns[i] == nil { - continue } - l += dns.Ns[i].len() - if compress { - k, ok := compressionLenSearch(compression, dns.Ns[i].Header().Name) - if ok { - l += 1 - k + for _, r := range dns.Ns { + if r != nil { + l += r.len() } - compressionLenHelper(compression, dns.Ns[i].Header().Name) - k, ok = compressionLenSearchType(compression, dns.Ns[i]) - if ok { - l += 1 - k + } + for _, r := range dns.Extra { + if r != nil { + l += r.len() } - compressionLenHelperType(compression, dns.Ns[i]) } } - for i := 0; i < len(dns.Extra); i++ { - if dns.Extra[i] == nil { + return l +} + +func compressionLenSlice(c map[string]int, rs []RR) int { + var l int + for _, r := range rs { + if r == nil { continue } - l += dns.Extra[i].len() - if compress { - k, ok := compressionLenSearch(compression, dns.Extra[i].Header().Name) - if ok { - l += 1 - k - } - compressionLenHelper(compression, dns.Extra[i].Header().Name) - k, ok = compressionLenSearchType(compression, dns.Extra[i]) - if ok { - l += 1 - k - } - compressionLenHelperType(compression, dns.Extra[i]) + l += r.len() + k, ok := compressionLenSearch(c, r.Header().Name) + if ok { + l += 1 - k + } + compressionLenHelper(c, r.Header().Name) + k, ok = compressionLenSearchType(c, r) + if ok { + l += 1 - k } + compressionLenHelperType(c, r) } return l } diff --git a/vendor/github.com/miekg/dns/msg_generate.go b/vendor/github.com/miekg/dns/msg_generate.go index 4d9f81d..8ba609f 100644 --- a/vendor/github.com/miekg/dns/msg_generate.go +++ b/vendor/github.com/miekg/dns/msg_generate.go @@ -18,8 +18,7 @@ import ( ) var packageHdr = ` -// *** DO NOT MODIFY *** -// AUTOGENERATED BY go generate from msg_generate.go +// Code generated by "go run msg_generate.go"; DO NOT EDIT. package dns diff --git a/vendor/github.com/miekg/dns/msg_helpers.go b/vendor/github.com/miekg/dns/msg_helpers.go index 8d415c9..946d5ac 100644 --- a/vendor/github.com/miekg/dns/msg_helpers.go +++ b/vendor/github.com/miekg/dns/msg_helpers.go @@ -406,16 +406,13 @@ Option: } edns = append(edns, e) off += int(optlen) - case EDNS0SUBNET, EDNS0SUBNETDRAFT: + case EDNS0SUBNET: e := new(EDNS0_SUBNET) if err := e.unpack(msg[off : off+int(optlen)]); err != nil { return nil, len(msg), err } edns = append(edns, e) off += int(optlen) - if code == EDNS0SUBNETDRAFT { - e.DraftOption = true - } case EDNS0COOKIE: e := new(EDNS0_COOKIE) if err := e.unpack(msg[off : off+int(optlen)]); err != nil { @@ -458,6 +455,13 @@ Option: } edns = append(edns, e) off += int(optlen) + case EDNS0PADDING: + e := new(EDNS0_PADDING) + if err := e.unpack(msg[off : off+int(optlen)]); err != nil { + return nil, len(msg), err + } + edns = append(edns, e) + off += int(optlen) default: e := new(EDNS0_LOCAL) e.Code = code diff --git a/vendor/github.com/miekg/dns/sanitize.go b/vendor/github.com/miekg/dns/sanitize.go index b489f3f..c415bdd 100644 --- a/vendor/github.com/miekg/dns/sanitize.go +++ b/vendor/github.com/miekg/dns/sanitize.go @@ -3,7 +3,7 @@ package dns // Dedup removes identical RRs from rrs. It preserves the original ordering. // The lowest TTL of any duplicates is used in the remaining one. Dedup modifies // rrs. -// m is used to store the RRs temporay. If it is nil a new map will be allocated. +// m is used to store the RRs temporary. If it is nil a new map will be allocated. func Dedup(rrs []RR, m map[string]RR) []RR { if m == nil { m = make(map[string]RR) diff --git a/vendor/github.com/miekg/dns/scan.go b/vendor/github.com/miekg/dns/scan.go index a76f1d8..77542ca 100644 --- a/vendor/github.com/miekg/dns/scan.go +++ b/vendor/github.com/miekg/dns/scan.go @@ -1,23 +1,14 @@ package dns import ( + "fmt" "io" - "log" "os" + "path/filepath" "strconv" "strings" ) -type debugging bool - -const debug debugging = false - -func (d debugging) Printf(format string, args ...interface{}) { - if d { - log.Printf(format, args...) - } -} - const maxTok = 2048 // Largest token we can return. const maxUint16 = 1<<16 - 1 @@ -38,7 +29,7 @@ const ( zOwner zClass zDirOrigin // $ORIGIN - zDirTtl // $TTL + zDirTTL // $TTL zDirInclude // $INCLUDE zDirGenerate // $GENERATE @@ -51,13 +42,13 @@ const ( zExpectAny // Expect rrtype, ttl or class zExpectAnyNoClass // Expect rrtype or ttl zExpectAnyNoClassBl // The whitespace after _EXPECT_ANY_NOCLASS - zExpectAnyNoTtl // Expect rrtype or class - zExpectAnyNoTtlBl // Whitespace after _EXPECT_ANY_NOTTL + zExpectAnyNoTTL // Expect rrtype or class + zExpectAnyNoTTLBl // Whitespace after _EXPECT_ANY_NOTTL zExpectRrtype // Expect rrtype zExpectRrtypeBl // Whitespace BEFORE rrtype zExpectRdata // The first element of the rdata - zExpectDirTtlBl // Space after directive $TTL - zExpectDirTtl // Directive $TTL + zExpectDirTTLBl // Space after directive $TTL + zExpectDirTTL // Directive $TTL zExpectDirOriginBl // Space after directive $ORIGIN zExpectDirOrigin // Directive $ORIGIN zExpectDirIncludeBl // Space after directive $INCLUDE @@ -105,6 +96,12 @@ type Token struct { Comment string } +// ttlState describes the state necessary to fill in an omitted RR TTL +type ttlState struct { + ttl uint32 // ttl is the current default TTL + isByDirective bool // isByDirective indicates whether ttl was set by a $TTL directive +} + // NewRR reads the RR contained in the string s. Only the first RR is // returned. If s contains no RR, return nil with no error. The class // defaults to IN and TTL defaults to 3600. The full zone file syntax @@ -120,7 +117,8 @@ func NewRR(s string) (RR, error) { // ReadRR reads the RR contained in q. // See NewRR for more documentation. func ReadRR(q io.Reader, filename string) (RR, error) { - r := <-parseZoneHelper(q, ".", filename, 1) + defttl := &ttlState{defaultTtl, false} + r := <-parseZoneHelper(q, ".", filename, defttl, 1) if r == nil { return nil, nil } @@ -132,10 +130,10 @@ func ReadRR(q io.Reader, filename string) (RR, error) { } // ParseZone reads a RFC 1035 style zonefile from r. It returns *Tokens on the -// returned channel, which consist out the parsed RR, a potential comment or an error. -// If there is an error the RR is nil. The string file is only used +// returned channel, each consisting of either a parsed RR and optional comment +// or a nil RR and an error. The string file is only used // in error reporting. The string origin is used as the initial origin, as -// if the file would start with: $ORIGIN origin . +// if the file would start with an $ORIGIN directive. // The directives $INCLUDE, $ORIGIN, $TTL and $GENERATE are supported. // The channel t is closed by ParseZone when the end of r is reached. // @@ -157,25 +155,37 @@ func ReadRR(q io.Reader, filename string) (RR, error) { // The text "; this is comment" is returned in Token.Comment. Comments inside the // RR are discarded. Comments on a line by themselves are discarded too. func ParseZone(r io.Reader, origin, file string) chan *Token { - return parseZoneHelper(r, origin, file, 10000) + return parseZoneHelper(r, origin, file, nil, 10000) } -func parseZoneHelper(r io.Reader, origin, file string, chansize int) chan *Token { +func parseZoneHelper(r io.Reader, origin, file string, defttl *ttlState, chansize int) chan *Token { t := make(chan *Token, chansize) - go parseZone(r, origin, file, t, 0) + go parseZone(r, origin, file, defttl, t, 0) return t } -func parseZone(r io.Reader, origin, f string, t chan *Token, include int) { +func parseZone(r io.Reader, origin, f string, defttl *ttlState, t chan *Token, include int) { defer func() { if include == 0 { close(t) } }() - s := scanInit(r) + s, cancel := scanInit(r) c := make(chan lex) // Start the lexer go zlexer(s, c) + + defer func() { + cancel() + // zlexer can send up to three tokens, the next one and possibly 2 remainders. + // Do a non-blocking read. + _, ok := <-c + _, ok = <-c + _, ok = <-c + if !ok { + // too bad + } + }() // 6 possible beginnings of a line, _ is a space // 0. zRRTYPE -> all omitted until the rrtype // 1. zOwner _ zRrtype -> class/ttl omitted @@ -186,18 +196,16 @@ func parseZone(r io.Reader, origin, f string, t chan *Token, include int) { // After detecting these, we know the zRrtype so we can jump to functions // handling the rdata for each of these types. - if origin == "" { - origin = "." - } - origin = Fqdn(origin) - if _, ok := IsDomainName(origin); !ok { - t <- &Token{Error: &ParseError{f, "bad initial origin name", lex{}}} - return + if origin != "" { + origin = Fqdn(origin) + if _, ok := IsDomainName(origin); !ok { + t <- &Token{Error: &ParseError{f, "bad initial origin name", lex{}}} + return + } } st := zExpectOwnerDir // initial state var h RR_Header - var defttl uint32 = defaultTtl var prevName string for l := range c { // Lexer spotted an error already @@ -209,31 +217,25 @@ func parseZone(r io.Reader, origin, f string, t chan *Token, include int) { switch st { case zExpectOwnerDir: // We can also expect a directive, like $TTL or $ORIGIN - h.Ttl = defttl + if defttl != nil { + h.Ttl = defttl.ttl + } h.Class = ClassINET switch l.value { case zNewline: st = zExpectOwnerDir case zOwner: h.Name = l.token - if l.token[0] == '@' { - h.Name = origin - prevName = h.Name - st = zExpectOwnerBl - break - } - if h.Name[l.length-1] != '.' { - h.Name = appendOrigin(h.Name, origin) - } - _, ok := IsDomainName(l.token) + name, ok := toAbsoluteName(l.token, origin) if !ok { t <- &Token{Error: &ParseError{f, "bad owner name", l}} return } + h.Name = name prevName = h.Name st = zExpectOwnerBl - case zDirTtl: - st = zExpectDirTtlBl + case zDirTTL: + st = zExpectDirTTLBl case zDirOrigin: st = zExpectDirOriginBl case zDirInclude: @@ -252,15 +254,16 @@ func parseZone(r io.Reader, origin, f string, t chan *Token, include int) { // Discard, can happen when there is nothing on the // line except the RR type case zString: - ttl, ok := stringToTtl(l.token) + ttl, ok := stringToTTL(l.token) if !ok { t <- &Token{Error: &ParseError{f, "not a TTL", l}} return } h.Ttl = ttl - // Don't about the defttl, we should take the $TTL value - // defttl = ttl - st = zExpectAnyNoTtlBl + if defttl == nil || !defttl.isByDirective { + defttl = &ttlState{ttl, false} + } + st = zExpectAnyNoTTLBl default: t <- &Token{Error: &ParseError{f, "syntax error at beginning", l}} @@ -282,20 +285,12 @@ func parseZone(r io.Reader, origin, f string, t chan *Token, include int) { case zBlank: l := <-c if l.value == zString { - if _, ok := IsDomainName(l.token); !ok || l.length == 0 || l.err { + name, ok := toAbsoluteName(l.token, origin) + if !ok { t <- &Token{Error: &ParseError{f, "bad origin name", l}} return } - // a new origin is specified. - if l.token[l.length-1] != '.' { - if origin != "." { // Prevent .. endings - neworigin = l.token + "." + origin - } else { - neworigin = l.token + origin - } - } else { - neworigin = l.token - } + neworigin = name } case zNewline, zEOF: // Ok @@ -304,24 +299,32 @@ func parseZone(r io.Reader, origin, f string, t chan *Token, include int) { return } // Start with the new file - r1, e1 := os.Open(l.token) + includePath := l.token + if !filepath.IsAbs(includePath) { + includePath = filepath.Join(filepath.Dir(f), includePath) + } + r1, e1 := os.Open(includePath) if e1 != nil { - t <- &Token{Error: &ParseError{f, "failed to open `" + l.token + "'", l}} + msg := fmt.Sprintf("failed to open `%s'", l.token) + if !filepath.IsAbs(l.token) { + msg += fmt.Sprintf(" as `%s'", includePath) + } + t <- &Token{Error: &ParseError{f, msg, l}} return } if include+1 > 7 { t <- &Token{Error: &ParseError{f, "too deeply nested $INCLUDE", l}} return } - parseZone(r1, neworigin, l.token, t, include+1) + parseZone(r1, neworigin, includePath, defttl, t, include+1) st = zExpectOwnerDir - case zExpectDirTtlBl: + case zExpectDirTTLBl: if l.value != zBlank { t <- &Token{Error: &ParseError{f, "no blank after $TTL-directive", l}} return } - st = zExpectDirTtl - case zExpectDirTtl: + st = zExpectDirTTL + case zExpectDirTTL: if l.value != zString { t <- &Token{Error: &ParseError{f, "expecting $TTL value, not this...", l}} return @@ -330,12 +333,12 @@ func parseZone(r io.Reader, origin, f string, t chan *Token, include int) { t <- &Token{Error: e} return } - ttl, ok := stringToTtl(l.token) + ttl, ok := stringToTTL(l.token) if !ok { t <- &Token{Error: &ParseError{f, "expecting $TTL value, not this...", l}} return } - defttl = ttl + defttl = &ttlState{ttl, true} st = zExpectOwnerDir case zExpectDirOriginBl: if l.value != zBlank { @@ -351,19 +354,12 @@ func parseZone(r io.Reader, origin, f string, t chan *Token, include int) { if e, _ := slurpRemainder(c, f); e != nil { t <- &Token{Error: e} } - if _, ok := IsDomainName(l.token); !ok { + name, ok := toAbsoluteName(l.token, origin) + if !ok { t <- &Token{Error: &ParseError{f, "bad origin name", l}} return } - if l.token[l.length-1] != '.' { - if origin != "." { // Prevent .. endings - origin = l.token + "." + origin - } else { - origin = l.token + origin - } - } else { - origin = l.token - } + origin = name st = zExpectOwnerDir case zExpectDirGenerateBl: if l.value != zBlank { @@ -390,20 +386,26 @@ func parseZone(r io.Reader, origin, f string, t chan *Token, include int) { case zExpectAny: switch l.value { case zRrtpe: + if defttl == nil { + t <- &Token{Error: &ParseError{f, "missing TTL with no previous value", l}} + return + } h.Rrtype = l.torc st = zExpectRdata case zClass: h.Class = l.torc st = zExpectAnyNoClassBl case zString: - ttl, ok := stringToTtl(l.token) + ttl, ok := stringToTTL(l.token) if !ok { t <- &Token{Error: &ParseError{f, "not a TTL", l}} return } h.Ttl = ttl - // defttl = ttl // don't set the defttl here - st = zExpectAnyNoTtlBl + if defttl == nil || !defttl.isByDirective { + defttl = &ttlState{ttl, false} + } + st = zExpectAnyNoTTLBl default: t <- &Token{Error: &ParseError{f, "expecting RR type, TTL or class, not this...", l}} return @@ -414,13 +416,13 @@ func parseZone(r io.Reader, origin, f string, t chan *Token, include int) { return } st = zExpectAnyNoClass - case zExpectAnyNoTtlBl: + case zExpectAnyNoTTLBl: if l.value != zBlank { t <- &Token{Error: &ParseError{f, "no blank before TTL", l}} return } - st = zExpectAnyNoTtl - case zExpectAnyNoTtl: + st = zExpectAnyNoTTL + case zExpectAnyNoTTL: switch l.value { case zClass: h.Class = l.torc @@ -435,13 +437,15 @@ func parseZone(r io.Reader, origin, f string, t chan *Token, include int) { case zExpectAnyNoClass: switch l.value { case zString: - ttl, ok := stringToTtl(l.token) + ttl, ok := stringToTTL(l.token) if !ok { t <- &Token{Error: &ParseError{f, "not a TTL", l}} return } h.Ttl = ttl - // defttl = ttl // don't set the def ttl anymore + if defttl == nil || !defttl.isByDirective { + defttl = &ttlState{ttl, false} + } st = zExpectRrtypeBl case zRrtpe: h.Rrtype = l.torc @@ -504,14 +508,12 @@ func zlexer(s *scan, c chan lex) { if stri >= maxTok { l.token = "token length insufficient for parsing" l.err = true - debug.Printf("[%+v]", l.token) c <- l return } if comi >= maxTok { l.token = "comment length insufficient for parsing" l.err = true - debug.Printf("[%+v]", l.token) c <- l return } @@ -546,7 +548,7 @@ func zlexer(s *scan, c chan lex) { // escape $... start with a \ not a $, so this will work switch l.tokenUpper { case "$TTL": - l.value = zDirTtl + l.value = zDirTTL case "$ORIGIN": l.value = zDirOrigin case "$INCLUDE": @@ -554,7 +556,6 @@ func zlexer(s *scan, c chan lex) { case "$GENERATE": l.value = zDirGenerate } - debug.Printf("[7 %+v]", l.token) c <- l } else { l.value = zString @@ -596,7 +597,6 @@ func zlexer(s *scan, c chan lex) { } } } - debug.Printf("[6 %+v]", l.token) c <- l } stri = 0 @@ -605,7 +605,6 @@ func zlexer(s *scan, c chan lex) { l.value = zBlank l.token = " " l.length = 1 - debug.Printf("[5 %+v]", l.token) c <- l } owner = false @@ -628,7 +627,6 @@ func zlexer(s *scan, c chan lex) { l.token = string(str[:stri]) l.tokenUpper = strings.ToUpper(l.token) l.length = stri - debug.Printf("[4 %+v]", l.token) c <- l stri = 0 } @@ -666,7 +664,6 @@ func zlexer(s *scan, c chan lex) { l.tokenUpper = l.token l.length = 1 l.comment = string(com[:comi]) - debug.Printf("[3 %+v %+v]", l.token, l.comment) c <- l l.comment = "" comi = 0 @@ -692,14 +689,12 @@ func zlexer(s *scan, c chan lex) { rrtype = true } } - debug.Printf("[2 %+v]", l.token) c <- l } l.value = zNewline l.token = "\n" l.tokenUpper = l.token l.length = 1 - debug.Printf("[1 %+v]", l.token) c <- l stri = 0 commt = false @@ -745,7 +740,6 @@ func zlexer(s *scan, c chan lex) { l.tokenUpper = strings.ToUpper(l.token) l.length = stri - debug.Printf("[%+v]", l.token) c <- l stri = 0 } @@ -781,7 +775,6 @@ func zlexer(s *scan, c chan lex) { l.token = "extra closing brace" l.tokenUpper = l.token l.err = true - debug.Printf("[%+v]", l.token) c <- l return } @@ -807,7 +800,6 @@ func zlexer(s *scan, c chan lex) { l.tokenUpper = strings.ToUpper(l.token) l.length = stri l.value = zString - debug.Printf("[%+v]", l.token) c <- l } if brace != 0 { @@ -844,8 +836,8 @@ func typeToInt(token string) (uint16, bool) { return uint16(typ), true } -// Parse things like 2w, 2m, etc, Return the time in seconds. -func stringToTtl(token string) (uint32, bool) { +// stringToTTL parses things like 2w, 2m, etc, and returns the time in seconds. +func stringToTTL(token string) (uint32, bool) { s := uint32(0) i := uint32(0) for _, c := range token { @@ -918,6 +910,34 @@ func stringToCm(token string) (e, m uint8, ok bool) { return } +func toAbsoluteName(name, origin string) (absolute string, ok bool) { + // check for an explicit origin reference + if name == "@" { + // require a nonempty origin + if origin == "" { + return "", false + } + return origin, true + } + + // require a valid domain name + _, ok = IsDomainName(name) + if !ok || name == "" { + return "", false + } + + // check if name is already absolute + if name[len(name)-1] == '.' { + return name, true + } + + // require a nonempty origin + if origin == "" { + return "", false + } + return appendOrigin(name, origin), true +} + func appendOrigin(name, origin string) string { if origin == "." { return name + origin diff --git a/vendor/github.com/miekg/dns/scan_rr.go b/vendor/github.com/miekg/dns/scan_rr.go index b8b18fd..f4ccc84 100644 --- a/vendor/github.com/miekg/dns/scan_rr.go +++ b/vendor/github.com/miekg/dns/scan_rr.go @@ -130,9 +130,10 @@ func setA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { // Dynamic updates. + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + rr.A = net.ParseIP(l.token) if rr.A == nil || l.err { return nil, &ParseError{f, "bad A A", l}, "" @@ -145,9 +146,10 @@ func setAAAA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + rr.AAAA = net.ParseIP(l.token) if rr.AAAA == nil || l.err { return nil, &ParseError{f, "bad AAAA AAAA", l}, "" @@ -161,20 +163,15 @@ func setNS(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.Ns = l.token - if l.length == 0 { - return rr, nil, "" - } - if l.token == "@" { - rr.Ns = o + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad NS Ns", l}, "" } - if rr.Ns[l.length-1] != '.' { - rr.Ns = appendOrigin(rr.Ns, o) - } + rr.Ns = name return rr, nil, "" } @@ -187,17 +184,12 @@ func setPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { if l.length == 0 { // dynamic update rr. return rr, nil, "" } - if l.token == "@" { - rr.Ptr = o - return rr, nil, "" - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad PTR Ptr", l}, "" } - if rr.Ptr[l.length-1] != '.' { - rr.Ptr = appendOrigin(rr.Ptr, o) - } + rr.Ptr = name return rr, nil, "" } @@ -207,20 +199,15 @@ func setNSAPPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) l := <-c rr.Ptr = l.token - if l.length == 0 { - return rr, nil, "" - } - if l.token == "@" { - rr.Ptr = o + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad NSAP-PTR Ptr", l}, "" } - if rr.Ptr[l.length-1] != '.' { - rr.Ptr = appendOrigin(rr.Ptr, o) - } + rr.Ptr = name return rr, nil, "" } @@ -230,34 +217,26 @@ func setRP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.Mbox = l.token - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - if l.token == "@" { - rr.Mbox = o - } else { - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { - return nil, &ParseError{f, "bad RP Mbox", l}, "" - } - if rr.Mbox[l.length-1] != '.' { - rr.Mbox = appendOrigin(rr.Mbox, o) - } + + mbox, mboxOk := toAbsoluteName(l.token, o) + if l.err || !mboxOk { + return nil, &ParseError{f, "bad RP Mbox", l}, "" } + rr.Mbox = mbox + <-c // zBlank l = <-c rr.Txt = l.token - if l.token == "@" { - rr.Txt = o - return rr, nil, "" - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + txt, txtOk := toAbsoluteName(l.token, o) + if l.err || !txtOk { return nil, &ParseError{f, "bad RP Txt", l}, "" } - if rr.Txt[l.length-1] != '.' { - rr.Txt = appendOrigin(rr.Txt, o) - } + rr.Txt = txt + return rr, nil, "" } @@ -267,20 +246,15 @@ func setMR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.Mr = l.token - if l.length == 0 { - return rr, nil, "" - } - if l.token == "@" { - rr.Mr = o + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad MR Mr", l}, "" } - if rr.Mr[l.length-1] != '.' { - rr.Mr = appendOrigin(rr.Mr, o) - } + rr.Mr = name return rr, nil, "" } @@ -290,20 +264,15 @@ func setMB(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.Mb = l.token - if l.length == 0 { - return rr, nil, "" - } - if l.token == "@" { - rr.Mb = o + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad MB Mb", l}, "" } - if rr.Mb[l.length-1] != '.' { - rr.Mb = appendOrigin(rr.Mb, o) - } + rr.Mb = name return rr, nil, "" } @@ -313,20 +282,15 @@ func setMG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.Mg = l.token - if l.length == 0 { - return rr, nil, "" - } - if l.token == "@" { - rr.Mg = o + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad MG Mg", l}, "" } - if rr.Mg[l.length-1] != '.' { - rr.Mg = appendOrigin(rr.Mg, o) - } + rr.Mg = name return rr, nil, "" } @@ -362,34 +326,26 @@ func setMINFO(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.Rmail = l.token - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - if l.token == "@" { - rr.Rmail = o - } else { - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { - return nil, &ParseError{f, "bad MINFO Rmail", l}, "" - } - if rr.Rmail[l.length-1] != '.' { - rr.Rmail = appendOrigin(rr.Rmail, o) - } + + rmail, rmailOk := toAbsoluteName(l.token, o) + if l.err || !rmailOk { + return nil, &ParseError{f, "bad MINFO Rmail", l}, "" } + rr.Rmail = rmail + <-c // zBlank l = <-c rr.Email = l.token - if l.token == "@" { - rr.Email = o - return rr, nil, "" - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + email, emailOk := toAbsoluteName(l.token, o) + if l.err || !emailOk { return nil, &ParseError{f, "bad MINFO Email", l}, "" } - if rr.Email[l.length-1] != '.' { - rr.Email = appendOrigin(rr.Email, o) - } + rr.Email = email + return rr, nil, "" } @@ -399,20 +355,15 @@ func setMF(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.Mf = l.token - if l.length == 0 { - return rr, nil, "" - } - if l.token == "@" { - rr.Mf = o + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad MF Mf", l}, "" } - if rr.Mf[l.length-1] != '.' { - rr.Mf = appendOrigin(rr.Mf, o) - } + rr.Mf = name return rr, nil, "" } @@ -422,20 +373,15 @@ func setMD(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.Md = l.token - if l.length == 0 { - return rr, nil, "" - } - if l.token == "@" { - rr.Md = o + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad MD Md", l}, "" } - if rr.Md[l.length-1] != '.' { - rr.Md = appendOrigin(rr.Md, o) - } + rr.Md = name return rr, nil, "" } @@ -444,57 +390,54 @@ func setMX(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad MX Pref", l}, "" } rr.Preference = uint16(i) + <-c // zBlank l = <-c // zString rr.Mx = l.token - if l.token == "@" { - rr.Mx = o - return rr, nil, "" - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad MX Mx", l}, "" } - if rr.Mx[l.length-1] != '.' { - rr.Mx = appendOrigin(rr.Mx, o) - } + rr.Mx = name + return rr, nil, "" } func setRT(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr := new(RT) rr.Hdr = h + l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil { return nil, &ParseError{f, "bad RT Preference", l}, "" } rr.Preference = uint16(i) + <-c // zBlank l = <-c // zString rr.Host = l.token - if l.token == "@" { - rr.Host = o - return rr, nil, "" - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad RT Host", l}, "" } - if rr.Host[l.length-1] != '.' { - rr.Host = appendOrigin(rr.Host, o) - } + rr.Host = name + return rr, nil, "" } @@ -503,28 +446,25 @@ func setAFSDB(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad AFSDB Subtype", l}, "" } rr.Subtype = uint16(i) + <-c // zBlank l = <-c // zString rr.Hostname = l.token - if l.token == "@" { - rr.Hostname = o - return rr, nil, "" - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad AFSDB Hostname", l}, "" } - if rr.Hostname[l.length-1] != '.' { - rr.Hostname = appendOrigin(rr.Hostname, o) - } + rr.Hostname = name return rr, nil, "" } @@ -533,9 +473,10 @@ func setX25(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + if l.err { return nil, &ParseError{f, "bad X25 PSDNAddress", l}, "" } @@ -548,28 +489,25 @@ func setKX(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad KX Pref", l}, "" } rr.Preference = uint16(i) + <-c // zBlank l = <-c // zString rr.Exchanger = l.token - if l.token == "@" { - rr.Exchanger = o - return rr, nil, "" - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad KX Exchanger", l}, "" } - if rr.Exchanger[l.length-1] != '.' { - rr.Exchanger = appendOrigin(rr.Exchanger, o) - } + rr.Exchanger = name return rr, nil, "" } @@ -579,20 +517,15 @@ func setCNAME(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.Target = l.token - if l.length == 0 { - return rr, nil, "" - } - if l.token == "@" { - rr.Target = o + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad CNAME Target", l}, "" } - if rr.Target[l.length-1] != '.' { - rr.Target = appendOrigin(rr.Target, o) - } + rr.Target = name return rr, nil, "" } @@ -602,20 +535,15 @@ func setDNAME(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.Target = l.token - if l.length == 0 { - return rr, nil, "" - } - if l.token == "@" { - rr.Target = o + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { - return nil, &ParseError{f, "bad CNAME Target", l}, "" - } - if rr.Target[l.length-1] != '.' { - rr.Target = appendOrigin(rr.Target, o) + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { + return nil, &ParseError{f, "bad DNAME Target", l}, "" } + rr.Target = name return rr, nil, "" } @@ -625,35 +553,26 @@ func setSOA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.Ns = l.token - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - <-c // zBlank - if l.token == "@" { - rr.Ns = o - } else { - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { - return nil, &ParseError{f, "bad SOA Ns", l}, "" - } - if rr.Ns[l.length-1] != '.' { - rr.Ns = appendOrigin(rr.Ns, o) - } + + ns, nsOk := toAbsoluteName(l.token, o) + if l.err || !nsOk { + return nil, &ParseError{f, "bad SOA Ns", l}, "" } + rr.Ns = ns + <-c // zBlank l = <-c rr.Mbox = l.token - if l.token == "@" { - rr.Mbox = o - } else { - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { - return nil, &ParseError{f, "bad SOA Mbox", l}, "" - } - if rr.Mbox[l.length-1] != '.' { - rr.Mbox = appendOrigin(rr.Mbox, o) - } + + mbox, mboxOk := toAbsoluteName(l.token, o) + if l.err || !mboxOk { + return nil, &ParseError{f, "bad SOA Mbox", l}, "" } + rr.Mbox = mbox + <-c // zBlank var ( @@ -667,10 +586,11 @@ func setSOA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { } if j, e := strconv.ParseUint(l.token, 10, 32); e != nil { if i == 0 { - // Serial should be a number + // Serial must be a number return nil, &ParseError{f, "bad SOA zone parameter", l}, "" } - if v, ok = stringToTtl(l.token); !ok { + // We allow other fields to be unitful duration strings + if v, ok = stringToTTL(l.token); !ok { return nil, &ParseError{f, "bad SOA zone parameter", l}, "" } @@ -702,14 +622,16 @@ func setSRV(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad SRV Priority", l}, "" } rr.Priority = uint16(i) + <-c // zBlank l = <-c // zString i, e = strconv.ParseUint(l.token, 10, 16) @@ -717,6 +639,7 @@ func setSRV(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { return nil, &ParseError{f, "bad SRV Weight", l}, "" } rr.Weight = uint16(i) + <-c // zBlank l = <-c // zString i, e = strconv.ParseUint(l.token, 10, 16) @@ -724,20 +647,16 @@ func setSRV(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { return nil, &ParseError{f, "bad SRV Port", l}, "" } rr.Port = uint16(i) + <-c // zBlank l = <-c // zString rr.Target = l.token - if l.token == "@" { - rr.Target = o - return rr, nil, "" - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad SRV Target", l}, "" } - if rr.Target[l.length-1] != '.' { - rr.Target = appendOrigin(rr.Target, o) - } + rr.Target = name return rr, nil, "" } @@ -746,14 +665,16 @@ func setNAPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad NAPTR Order", l}, "" } rr.Order = uint16(i) + <-c // zBlank l = <-c // zString i, e = strconv.ParseUint(l.token, 10, 16) @@ -761,6 +682,7 @@ func setNAPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { return nil, &ParseError{f, "bad NAPTR Preference", l}, "" } rr.Preference = uint16(i) + // Flags <-c // zBlank l = <-c // _QUOTE @@ -817,21 +739,17 @@ func setNAPTR(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { } else { return nil, &ParseError{f, "bad NAPTR Regexp", l}, "" } + // After quote no space?? <-c // zBlank l = <-c // zString rr.Replacement = l.token - if l.token == "@" { - rr.Replacement = o - return rr, nil, "" - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad NAPTR Replacement", l}, "" } - if rr.Replacement[l.length-1] != '.' { - rr.Replacement = appendOrigin(rr.Replacement, o) - } + rr.Replacement = name return rr, nil, "" } @@ -841,34 +759,26 @@ func setTALINK(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.PreviousName = l.token - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } - if l.token == "@" { - rr.PreviousName = o - } else { - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { - return nil, &ParseError{f, "bad TALINK PreviousName", l}, "" - } - if rr.PreviousName[l.length-1] != '.' { - rr.PreviousName = appendOrigin(rr.PreviousName, o) - } + + previousName, previousNameOk := toAbsoluteName(l.token, o) + if l.err || !previousNameOk { + return nil, &ParseError{f, "bad TALINK PreviousName", l}, "" } + rr.PreviousName = previousName + <-c // zBlank l = <-c rr.NextName = l.token - if l.token == "@" { - rr.NextName = o - return rr, nil, "" - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + + nextName, nextNameOk := toAbsoluteName(l.token, o) + if l.err || !nextNameOk { return nil, &ParseError{f, "bad TALINK NextName", l}, "" } - if rr.NextName[l.length-1] != '.' { - rr.NextName = appendOrigin(rr.NextName, o) - } + rr.NextName = nextName + return rr, nil, "" } @@ -880,9 +790,10 @@ func setLOC(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.VertPre = 162 // 10 rr.Size = 18 // 1 ok := false + // North l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } i, e := strconv.ParseUint(l.token, 10, 32) @@ -1013,14 +924,16 @@ func setHIP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { // HitLength is not represented l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, l.comment } + i, e := strconv.ParseUint(l.token, 10, 8) if e != nil || l.err { return nil, &ParseError{f, "bad HIP PublicKeyAlgorithm", l}, "" } rr.PublicKeyAlgorithm = uint8(i) + <-c // zBlank l = <-c // zString if l.length == 0 || l.err { @@ -1043,19 +956,11 @@ func setHIP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { for l.value != zNewline && l.value != zEOF { switch l.value { case zString: - if l.token == "@" { - xs = append(xs, o) - l = <-c - continue - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad HIP RendezvousServers", l}, "" } - if l.token[l.length-1] != '.' { - l.token = appendOrigin(l.token, o) - } - xs = append(xs, l.token) + xs = append(xs, name) case zBlank: // Ok default: @@ -1072,9 +977,10 @@ func setCERT(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, l.comment } + if v, ok := StringToCertType[l.token]; ok { rr.Type = v } else if i, e := strconv.ParseUint(l.token, 10, 16); e != nil { @@ -1118,6 +1024,56 @@ func setOPENPGPKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, strin return rr, nil, c1 } +func setCSYNC(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { + rr := new(CSYNC) + rr.Hdr = h + + l := <-c + if l.length == 0 { // dynamic update rr. + return rr, nil, l.comment + } + j, e := strconv.ParseUint(l.token, 10, 32) + if e != nil { + // Serial must be a number + return nil, &ParseError{f, "bad CSYNC serial", l}, "" + } + rr.Serial = uint32(j) + + <-c // zBlank + + l = <-c + j, e = strconv.ParseUint(l.token, 10, 16) + if e != nil { + // Serial must be a number + return nil, &ParseError{f, "bad CSYNC flags", l}, "" + } + rr.Flags = uint16(j) + + rr.TypeBitMap = make([]uint16, 0) + var ( + k uint16 + ok bool + ) + l = <-c + for l.value != zNewline && l.value != zEOF { + switch l.value { + case zBlank: + // Ok + case zString: + if k, ok = StringToType[l.tokenUpper]; !ok { + if k, ok = typeToInt(l.tokenUpper); !ok { + return nil, &ParseError{f, "bad CSYNC TypeBitMap", l}, "" + } + } + rr.TypeBitMap = append(rr.TypeBitMap, k) + default: + return nil, &ParseError{f, "bad CSYNC TypeBitMap", l}, "" + } + l = <-c + } + return rr, nil, l.comment +} + func setSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { r, e, s := setRRSIG(h, c, o, f) if r != nil { @@ -1129,10 +1085,12 @@ func setSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { func setRRSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr := new(RRSIG) rr.Hdr = h + l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, l.comment } + if t, ok := StringToType[l.tokenUpper]; !ok { if strings.HasPrefix(l.tokenUpper, "TYPE") { t, ok = typeToInt(l.tokenUpper) @@ -1146,6 +1104,7 @@ func setRRSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { } else { rr.TypeCovered = t } + <-c // zBlank l = <-c i, err := strconv.ParseUint(l.token, 10, 8) @@ -1153,6 +1112,7 @@ func setRRSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { return nil, &ParseError{f, "bad RRSIG Algorithm", l}, "" } rr.Algorithm = uint8(i) + <-c // zBlank l = <-c i, err = strconv.ParseUint(l.token, 10, 8) @@ -1160,6 +1120,7 @@ func setRRSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { return nil, &ParseError{f, "bad RRSIG Labels", l}, "" } rr.Labels = uint8(i) + <-c // zBlank l = <-c i, err = strconv.ParseUint(l.token, 10, 32) @@ -1167,6 +1128,7 @@ func setRRSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { return nil, &ParseError{f, "bad RRSIG OrigTtl", l}, "" } rr.OrigTtl = uint32(i) + <-c // zBlank l = <-c if i, err := StringToTime(l.token); err != nil { @@ -1180,6 +1142,7 @@ func setRRSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { } else { rr.Expiration = i } + <-c // zBlank l = <-c if i, err := StringToTime(l.token); err != nil { @@ -1191,6 +1154,7 @@ func setRRSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { } else { rr.Inception = i } + <-c // zBlank l = <-c i, err = strconv.ParseUint(l.token, 10, 16) @@ -1198,25 +1162,22 @@ func setRRSIG(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { return nil, &ParseError{f, "bad RRSIG KeyTag", l}, "" } rr.KeyTag = uint16(i) + <-c // zBlank l = <-c rr.SignerName = l.token - if l.token == "@" { - rr.SignerName = o - } else { - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { - return nil, &ParseError{f, "bad RRSIG SignerName", l}, "" - } - if rr.SignerName[l.length-1] != '.' { - rr.SignerName = appendOrigin(rr.SignerName, o) - } + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { + return nil, &ParseError{f, "bad RRSIG SignerName", l}, "" } + rr.SignerName = name + s, e, c1 := endingToString(c, "bad RRSIG Signature", f) if e != nil { return nil, e, c1 } rr.Signature = s + return rr, nil, c1 } @@ -1226,20 +1187,15 @@ func setNSEC(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { l := <-c rr.NextDomain = l.token - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, l.comment } - if l.token == "@" { - rr.NextDomain = o - } else { - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { - return nil, &ParseError{f, "bad NSEC NextDomain", l}, "" - } - if rr.NextDomain[l.length-1] != '.' { - rr.NextDomain = appendOrigin(rr.NextDomain, o) - } + + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { + return nil, &ParseError{f, "bad NSEC NextDomain", l}, "" } + rr.NextDomain = name rr.TypeBitMap = make([]uint16, 0) var ( @@ -1271,9 +1227,10 @@ func setNSEC3(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, l.comment } + i, e := strconv.ParseUint(l.token, 10, 8) if e != nil || l.err { return nil, &ParseError{f, "bad NSEC3 Hash", l}, "" @@ -1339,9 +1296,10 @@ func setNSEC3PARAM(h RR_Header, c chan lex, o, f string) (RR, *ParseError, strin rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 8) if e != nil || l.err { return nil, &ParseError{f, "bad NSEC3PARAM Hash", l}, "" @@ -1373,9 +1331,10 @@ func setEUI48(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + if l.length != 17 || l.err { return nil, &ParseError{f, "bad EUI48 Address", l}, "" } @@ -1405,9 +1364,10 @@ func setEUI64(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + if l.length != 23 || l.err { return nil, &ParseError{f, "bad EUI64 Address", l}, "" } @@ -1437,9 +1397,10 @@ func setSSHFP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 8) if e != nil || l.err { return nil, &ParseError{f, "bad SSHFP Algorithm", l}, "" @@ -1466,9 +1427,10 @@ func setDNSKEYs(h RR_Header, c chan lex, o, f, typ string) (RR, *ParseError, str rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, l.comment } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad " + typ + " Flags", l}, "" @@ -1522,9 +1484,10 @@ func setRKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, l.comment } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad RKEY Flags", l}, "" @@ -1577,10 +1540,12 @@ func setNIMLOC(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { func setGPOS(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr := new(GPOS) rr.Hdr = h + l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + _, e := strconv.ParseFloat(l.token, 64) if e != nil || l.err { return nil, &ParseError{f, "bad GPOS Longitude", l}, "" @@ -1606,10 +1571,12 @@ func setGPOS(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { func setDSs(h RR_Header, c chan lex, o, f, typ string) (RR, *ParseError, string) { rr := new(DS) rr.Hdr = h + l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, l.comment } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad " + typ + " KeyTag", l}, "" @@ -1665,10 +1632,12 @@ func setCDS(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { func setTA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr := new(TA) rr.Hdr = h + l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, l.comment } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad TA KeyTag", l}, "" @@ -1703,10 +1672,12 @@ func setTA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { func setTLSA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr := new(TLSA) rr.Hdr = h + l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, l.comment } + i, e := strconv.ParseUint(l.token, 10, 8) if e != nil || l.err { return nil, &ParseError{f, "bad TLSA Usage", l}, "" @@ -1738,10 +1709,12 @@ func setTLSA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { func setSMIMEA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr := new(SMIMEA) rr.Hdr = h + l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, l.comment } + i, e := strconv.ParseUint(l.token, 10, 8) if e != nil || l.err { return nil, &ParseError{f, "bad SMIMEA Usage", l}, "" @@ -1773,10 +1746,12 @@ func setSMIMEA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { func setRFC3597(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr := new(RFC3597) rr.Hdr = h + l := <-c if l.token != "\\#" { return nil, &ParseError{f, "bad RFC3597 Rdata", l}, "" } + <-c // zBlank l = <-c rdlength, e := strconv.Atoi(l.token) @@ -1850,7 +1825,7 @@ func setURI(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { // Dynamic updates. + if l.length == 0 { // dynamic update rr. return rr, nil, "" } @@ -1872,7 +1847,7 @@ func setURI(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { if err != nil { return nil, err, "" } - if len(s) > 1 { + if len(s) != 1 { return nil, &ParseError{f, "bad URI Target", l}, "" } rr.Target = s[0] @@ -1897,9 +1872,10 @@ func setNID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad NID Preference", l}, "" @@ -1920,9 +1896,10 @@ func setL32(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad L32 Preference", l}, "" @@ -1942,31 +1919,25 @@ func setLP(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad LP Preference", l}, "" } rr.Preference = uint16(i) + <-c // zBlank l = <-c // zString rr.Fqdn = l.token - if l.length == 0 { - return rr, nil, "" - } - if l.token == "@" { - rr.Fqdn = o - return rr, nil, "" - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + name, nameOk := toAbsoluteName(l.token, o) + if l.err || !nameOk { return nil, &ParseError{f, "bad LP Fqdn", l}, "" } - if rr.Fqdn[l.length-1] != '.' { - rr.Fqdn = appendOrigin(rr.Fqdn, o) - } + rr.Fqdn = name + return rr, nil, "" } @@ -1975,9 +1946,10 @@ func setL64(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad L64 Preference", l}, "" @@ -1996,10 +1968,12 @@ func setL64(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { func setUID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr := new(UID) rr.Hdr = h + l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 32) if e != nil || l.err { return nil, &ParseError{f, "bad UID Uid", l}, "" @@ -2011,10 +1985,12 @@ func setUID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { func setGID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr := new(GID) rr.Hdr = h + l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 32) if e != nil || l.err { return nil, &ParseError{f, "bad GID Gid", l}, "" @@ -2026,6 +2002,7 @@ func setGID(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { func setUINFO(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr := new(UINFO) rr.Hdr = h + s, e, c1 := endingToTxtSlice(c, "bad UINFO Uinfo", f) if e != nil { return nil, e, c1 @@ -2042,55 +2019,46 @@ func setPX(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr.Hdr = h l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, "" } + i, e := strconv.ParseUint(l.token, 10, 16) if e != nil || l.err { return nil, &ParseError{f, "bad PX Preference", l}, "" } rr.Preference = uint16(i) + <-c // zBlank l = <-c // zString rr.Map822 = l.token - if l.length == 0 { - return rr, nil, "" - } - if l.token == "@" { - rr.Map822 = o - return rr, nil, "" - } - _, ok := IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + map822, map822Ok := toAbsoluteName(l.token, o) + if l.err || !map822Ok { return nil, &ParseError{f, "bad PX Map822", l}, "" } - if rr.Map822[l.length-1] != '.' { - rr.Map822 = appendOrigin(rr.Map822, o) - } + rr.Map822 = map822 + <-c // zBlank l = <-c // zString rr.Mapx400 = l.token - if l.token == "@" { - rr.Mapx400 = o - return rr, nil, "" - } - _, ok = IsDomainName(l.token) - if !ok || l.length == 0 || l.err { + mapx400, mapx400Ok := toAbsoluteName(l.token, o) + if l.err || !mapx400Ok { return nil, &ParseError{f, "bad PX Mapx400", l}, "" } - if rr.Mapx400[l.length-1] != '.' { - rr.Mapx400 = appendOrigin(rr.Mapx400, o) - } + rr.Mapx400 = mapx400 + return rr, nil, "" } func setCAA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { rr := new(CAA) rr.Hdr = h + l := <-c - if l.length == 0 { + if l.length == 0 { // dynamic update rr. return rr, nil, l.comment } + i, err := strconv.ParseUint(l.token, 10, 8) if err != nil || l.err { return nil, &ParseError{f, "bad CAA Flag", l}, "" @@ -2109,13 +2077,58 @@ func setCAA(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { if e != nil { return nil, e, "" } - if len(s) > 1 { + if len(s) != 1 { return nil, &ParseError{f, "bad CAA Value", l}, "" } rr.Value = s[0] return rr, nil, c1 } +func setTKEY(h RR_Header, c chan lex, o, f string) (RR, *ParseError, string) { + rr := new(TKEY) + rr.Hdr = h + + l := <-c + + // Algorithm + if l.value != zString { + return nil, &ParseError{f, "bad TKEY algorithm", l}, "" + } + rr.Algorithm = l.token + <-c // zBlank + + // Get the key length and key values + l = <-c + i, err := strconv.ParseUint(l.token, 10, 8) + if err != nil || l.err { + return nil, &ParseError{f, "bad TKEY key length", l}, "" + } + rr.KeySize = uint16(i) + <-c // zBlank + l = <-c + if l.value != zString { + return nil, &ParseError{f, "bad TKEY key", l}, "" + } + rr.Key = l.token + <-c // zBlank + + // Get the otherdata length and string data + l = <-c + i, err = strconv.ParseUint(l.token, 10, 8) + if err != nil || l.err { + return nil, &ParseError{f, "bad TKEY otherdata length", l}, "" + } + rr.OtherLen = uint16(i) + <-c // zBlank + l = <-c + if l.value != zString { + return nil, &ParseError{f, "bad TKEY otherday", l}, "" + } + rr.OtherData = l.token + + return rr, nil, "" +} + var typeToparserFunc = map[uint16]parserFunc{ TypeAAAA: {setAAAA, false}, TypeAFSDB: {setAFSDB, false}, @@ -2125,6 +2138,7 @@ var typeToparserFunc = map[uint16]parserFunc{ TypeCDNSKEY: {setCDNSKEY, true}, TypeCERT: {setCERT, true}, TypeCNAME: {setCNAME, false}, + TypeCSYNC: {setCSYNC, true}, TypeDHCID: {setDHCID, true}, TypeDLV: {setDLV, true}, TypeDNAME: {setDNAME, false}, @@ -2181,4 +2195,5 @@ var typeToparserFunc = map[uint16]parserFunc{ TypeUINFO: {setUINFO, true}, TypeURI: {setURI, true}, TypeX25: {setX25, false}, + TypeTKEY: {setTKEY, true}, } diff --git a/vendor/github.com/miekg/dns/scanner.go b/vendor/github.com/miekg/dns/scanner.go index c29bc2f..424e5af 100644 --- a/vendor/github.com/miekg/dns/scanner.go +++ b/vendor/github.com/miekg/dns/scanner.go @@ -4,6 +4,7 @@ package dns import ( "bufio" + "context" "io" "text/scanner" ) @@ -12,13 +13,18 @@ type scan struct { src *bufio.Reader position scanner.Position eof bool // Have we just seen a eof + ctx context.Context } -func scanInit(r io.Reader) *scan { +func scanInit(r io.Reader) (*scan, context.CancelFunc) { s := new(scan) s.src = bufio.NewReader(r) s.position.Line = 1 - return s + + ctx, cancel := context.WithCancel(context.Background()) + s.ctx = ctx + + return s, cancel } // tokenText returns the next byte from the input @@ -27,6 +33,13 @@ func (s *scan) tokenText() (byte, error) { if err != nil { return c, err } + select { + case <-s.ctx.Done(): + return c, context.Canceled + default: + break + } + // delay the newline handling until the next token is delivered, // fixes off-by-one errors when reporting a parse error. if s.eof == true { diff --git a/vendor/github.com/miekg/dns/server.go b/vendor/github.com/miekg/dns/server.go index 0ca6e00..136a9a1 100644 --- a/vendor/github.com/miekg/dns/server.go +++ b/vendor/github.com/miekg/dns/server.go @@ -285,7 +285,7 @@ type Server struct { WriteTimeout time.Duration // TCP idle timeout for multiple queries, if nil, defaults to 8 * time.Second (RFC 5966). IdleTimeout func() time.Duration - // Secret(s) for Tsig map[]. + // Secret(s) for Tsig map[]. The zonename must be in canonical form (lowercase, fqdn, see RFC 4034 Section 6.2). TsigSecret map[string]string // Unsafe instructs the server to disregard any sanity checks and directly hand the message to // the handler. It will specifically not check if the query has the QR bit not set. @@ -297,10 +297,7 @@ type Server struct { // DecorateWriter is optional, allows customization of the process that writes raw DNS messages. DecorateWriter DecorateWriter - // Graceful shutdown handling - - inFlight sync.WaitGroup - + // Shutdown handling lock sync.RWMutex started bool } @@ -412,10 +409,8 @@ func (srv *Server) ActivateAndServe() error { return &Error{err: "bad listeners"} } -// Shutdown gracefully shuts down a server. After a call to Shutdown, ListenAndServe and -// ActivateAndServe will return. All in progress queries are completed before the server -// is taken down. If the Shutdown is taking longer than the reading timeout an error -// is returned. +// Shutdown shuts down a server. After a call to Shutdown, ListenAndServe and +// ActivateAndServe will return. func (srv *Server) Shutdown() error { srv.lock.Lock() if !srv.started { @@ -431,19 +426,7 @@ func (srv *Server) Shutdown() error { if srv.Listener != nil { srv.Listener.Close() } - - fin := make(chan bool) - go func() { - srv.inFlight.Wait() - fin <- true - }() - - select { - case <-time.After(srv.getReadTimeout()): - return &Error{err: "server shutdown is pending"} - case <-fin: - return nil - } + return nil } // getReadTimeout is a helper func to use system timeout if server did not intend to change it. @@ -493,7 +476,6 @@ func (srv *Server) serveTCP(l net.Listener) error { if err != nil { continue } - srv.inFlight.Add(1) go srv.serve(rw.RemoteAddr(), handler, m, nil, nil, rw) } } @@ -529,15 +511,12 @@ func (srv *Server) serveUDP(l *net.UDPConn) error { if err != nil { continue } - srv.inFlight.Add(1) go srv.serve(s.RemoteAddr(), handler, m, l, s, nil) } } // Serve a new connection. func (srv *Server) serve(a net.Addr, h Handler, m []byte, u *net.UDPConn, s *SessionUDP, t net.Conn) { - defer srv.inFlight.Done() - w := &response{tsigSecret: srv.TsigSecret, udp: u, tcp: t, remoteAddr: a, udpSession: s} if srv.DecorateWriter != nil { w.writer = srv.DecorateWriter(w) diff --git a/vendor/github.com/miekg/dns/types.go b/vendor/github.com/miekg/dns/types.go index 57f065b..a779ca8 100644 --- a/vendor/github.com/miekg/dns/types.go +++ b/vendor/github.com/miekg/dns/types.go @@ -78,6 +78,7 @@ const ( TypeCDS uint16 = 59 TypeCDNSKEY uint16 = 60 TypeOPENPGPKEY uint16 = 61 + TypeCSYNC uint16 = 62 TypeSPF uint16 = 99 TypeUINFO uint16 = 100 TypeUID uint16 = 101 @@ -164,14 +165,15 @@ const ( _Z = 1 << 6 // Z _AD = 1 << 5 // authticated data _CD = 1 << 4 // checking disabled +) +// Various constants used in the LOC RR, See RFC 1887. +const ( LOC_EQUATOR = 1 << 31 // RFC 1876, Section 2. LOC_PRIMEMERIDIAN = 1 << 31 // RFC 1876, Section 2. - - LOC_HOURS = 60 * 1000 - LOC_DEGREES = 60 * LOC_HOURS - - LOC_ALTITUDEBASE = 100000 + LOC_HOURS = 60 * 1000 + LOC_DEGREES = 60 * LOC_HOURS + LOC_ALTITUDEBASE = 100000 ) // Different Certificate Types, see RFC 4398, Section 2.1 @@ -237,6 +239,7 @@ type ANY struct { func (rr *ANY) String() string { return rr.Hdr.String() } +// CNAME RR. See RFC 1034. type CNAME struct { Hdr RR_Header Target string `dns:"cdomain-name"` @@ -244,6 +247,7 @@ type CNAME struct { func (rr *CNAME) String() string { return rr.Hdr.String() + sprintName(rr.Target) } +// HINFO RR. See RFC 1034. type HINFO struct { Hdr RR_Header Cpu string @@ -254,6 +258,7 @@ func (rr *HINFO) String() string { return rr.Hdr.String() + sprintTxt([]string{rr.Cpu, rr.Os}) } +// MB RR. See RFC 1035. type MB struct { Hdr RR_Header Mb string `dns:"cdomain-name"` @@ -261,6 +266,7 @@ type MB struct { func (rr *MB) String() string { return rr.Hdr.String() + sprintName(rr.Mb) } +// MG RR. See RFC 1035. type MG struct { Hdr RR_Header Mg string `dns:"cdomain-name"` @@ -268,6 +274,7 @@ type MG struct { func (rr *MG) String() string { return rr.Hdr.String() + sprintName(rr.Mg) } +// MINFO RR. See RFC 1035. type MINFO struct { Hdr RR_Header Rmail string `dns:"cdomain-name"` @@ -278,6 +285,7 @@ func (rr *MINFO) String() string { return rr.Hdr.String() + sprintName(rr.Rmail) + " " + sprintName(rr.Email) } +// MR RR. See RFC 1035. type MR struct { Hdr RR_Header Mr string `dns:"cdomain-name"` @@ -287,6 +295,7 @@ func (rr *MR) String() string { return rr.Hdr.String() + sprintName(rr.Mr) } +// MF RR. See RFC 1035. type MF struct { Hdr RR_Header Mf string `dns:"cdomain-name"` @@ -296,6 +305,7 @@ func (rr *MF) String() string { return rr.Hdr.String() + sprintName(rr.Mf) } +// MD RR. See RFC 1035. type MD struct { Hdr RR_Header Md string `dns:"cdomain-name"` @@ -305,6 +315,7 @@ func (rr *MD) String() string { return rr.Hdr.String() + sprintName(rr.Md) } +// MX RR. See RFC 1035. type MX struct { Hdr RR_Header Preference uint16 @@ -315,6 +326,7 @@ func (rr *MX) String() string { return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Mx) } +// AFSDB RR. See RFC 1183. type AFSDB struct { Hdr RR_Header Subtype uint16 @@ -325,6 +337,7 @@ func (rr *AFSDB) String() string { return rr.Hdr.String() + strconv.Itoa(int(rr.Subtype)) + " " + sprintName(rr.Hostname) } +// X25 RR. See RFC 1183, Section 3.1. type X25 struct { Hdr RR_Header PSDNAddress string @@ -334,6 +347,7 @@ func (rr *X25) String() string { return rr.Hdr.String() + rr.PSDNAddress } +// RT RR. See RFC 1183, Section 3.3. type RT struct { Hdr RR_Header Preference uint16 @@ -344,6 +358,7 @@ func (rr *RT) String() string { return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Host) } +// NS RR. See RFC 1035. type NS struct { Hdr RR_Header Ns string `dns:"cdomain-name"` @@ -353,6 +368,7 @@ func (rr *NS) String() string { return rr.Hdr.String() + sprintName(rr.Ns) } +// PTR RR. See RFC 1035. type PTR struct { Hdr RR_Header Ptr string `dns:"cdomain-name"` @@ -362,6 +378,7 @@ func (rr *PTR) String() string { return rr.Hdr.String() + sprintName(rr.Ptr) } +// RP RR. See RFC 1138, Section 2.2. type RP struct { Hdr RR_Header Mbox string `dns:"domain-name"` @@ -372,6 +389,7 @@ func (rr *RP) String() string { return rr.Hdr.String() + rr.Mbox + " " + sprintTxt([]string{rr.Txt}) } +// SOA RR. See RFC 1035. type SOA struct { Hdr RR_Header Ns string `dns:"cdomain-name"` @@ -392,6 +410,7 @@ func (rr *SOA) String() string { " " + strconv.FormatInt(int64(rr.Minttl), 10) } +// TXT RR. See RFC 1035. type TXT struct { Hdr RR_Header Txt []string `dns:"txt"` @@ -524,6 +543,7 @@ func nextByte(b []byte, offset int) (byte, int) { return b[offset+1], 2 } +// SPF RR. See RFC 4408, Section 3.1.1. type SPF struct { Hdr RR_Header Txt []string `dns:"txt"` @@ -531,6 +551,7 @@ type SPF struct { func (rr *SPF) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) } +// AVC RR. See https://www.iana.org/assignments/dns-parameters/AVC/avc-completed-template. type AVC struct { Hdr RR_Header Txt []string `dns:"txt"` @@ -538,6 +559,7 @@ type AVC struct { func (rr *AVC) String() string { return rr.Hdr.String() + sprintTxt(rr.Txt) } +// SRV RR. See RFC 2782. type SRV struct { Hdr RR_Header Priority uint16 @@ -553,6 +575,7 @@ func (rr *SRV) String() string { strconv.Itoa(int(rr.Port)) + " " + sprintName(rr.Target) } +// NAPTR RR. See RFC 2915. type NAPTR struct { Hdr RR_Header Order uint16 @@ -573,7 +596,7 @@ func (rr *NAPTR) String() string { rr.Replacement } -// The CERT resource record, see RFC 4398. +// CERT RR. See RFC 4398. type CERT struct { Hdr RR_Header Type uint16 @@ -599,7 +622,7 @@ func (rr *CERT) String() string { " " + rr.Certificate } -// The DNAME resource record, see RFC 2672. +// DNAME RR. See RFC 2672. type DNAME struct { Hdr RR_Header Target string `dns:"domain-name"` @@ -609,6 +632,7 @@ func (rr *DNAME) String() string { return rr.Hdr.String() + sprintName(rr.Target) } +// A RR. See RFC 1035. type A struct { Hdr RR_Header A net.IP `dns:"a"` @@ -621,6 +645,7 @@ func (rr *A) String() string { return rr.Hdr.String() + rr.A.String() } +// AAAA RR. See RFC 3596. type AAAA struct { Hdr RR_Header AAAA net.IP `dns:"aaaa"` @@ -633,6 +658,7 @@ func (rr *AAAA) String() string { return rr.Hdr.String() + rr.AAAA.String() } +// PX RR. See RFC 2163. type PX struct { Hdr RR_Header Preference uint16 @@ -644,6 +670,7 @@ func (rr *PX) String() string { return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Map822) + " " + sprintName(rr.Mapx400) } +// GPOS RR. See RFC 1712. type GPOS struct { Hdr RR_Header Longitude string @@ -655,6 +682,7 @@ func (rr *GPOS) String() string { return rr.Hdr.String() + rr.Longitude + " " + rr.Latitude + " " + rr.Altitude } +// LOC RR. See RFC RFC 1876. type LOC struct { Hdr RR_Header Version uint8 @@ -731,11 +759,12 @@ func (rr *LOC) String() string { return s } -// SIG is identical to RRSIG and nowadays only used for SIG(0), RFC2931. +// SIG RR. See RFC 2535. The SIG RR is identical to RRSIG and nowadays only used for SIG(0), See RFC 2931. type SIG struct { RRSIG } +// RRSIG RR. See RFC 4034 and RFC 3755. type RRSIG struct { Hdr RR_Header TypeCovered uint16 @@ -763,6 +792,7 @@ func (rr *RRSIG) String() string { return s } +// NSEC RR. See RFC 4034 and RFC 3755. type NSEC struct { Hdr RR_Header NextDomain string `dns:"domain-name"` @@ -790,14 +820,13 @@ func (rr *NSEC) len() int { return l } -type DLV struct { - DS -} +// DLV RR. See RFC 4431. +type DLV struct{ DS } -type CDS struct { - DS -} +// CDS RR. See RFC 7344. +type CDS struct{ DS } +// DS RR. See RFC 4034 and RFC 3658. type DS struct { Hdr RR_Header KeyTag uint16 @@ -813,6 +842,7 @@ func (rr *DS) String() string { " " + strings.ToUpper(rr.Digest) } +// KX RR. See RFC 2230. type KX struct { Hdr RR_Header Preference uint16 @@ -824,6 +854,7 @@ func (rr *KX) String() string { " " + sprintName(rr.Exchanger) } +// TA RR. See http://www.watson.org/~weiler/INI1999-19.pdf. type TA struct { Hdr RR_Header KeyTag uint16 @@ -839,6 +870,7 @@ func (rr *TA) String() string { " " + strings.ToUpper(rr.Digest) } +// TALINK RR. See https://www.iana.org/assignments/dns-parameters/TALINK/talink-completed-template. type TALINK struct { Hdr RR_Header PreviousName string `dns:"domain-name"` @@ -850,6 +882,7 @@ func (rr *TALINK) String() string { sprintName(rr.PreviousName) + " " + sprintName(rr.NextName) } +// SSHFP RR. See RFC RFC 4255. type SSHFP struct { Hdr RR_Header Algorithm uint8 @@ -863,14 +896,17 @@ func (rr *SSHFP) String() string { " " + strings.ToUpper(rr.FingerPrint) } +// KEY RR. See RFC RFC 2535. type KEY struct { DNSKEY } +// CDNSKEY RR. See RFC 7344. type CDNSKEY struct { DNSKEY } +// DNSKEY RR. See RFC 4034 and RFC 3755. type DNSKEY struct { Hdr RR_Header Flags uint16 @@ -886,6 +922,7 @@ func (rr *DNSKEY) String() string { " " + rr.PublicKey } +// RKEY RR. See https://www.iana.org/assignments/dns-parameters/RKEY/rkey-completed-template. type RKEY struct { Hdr RR_Header Flags uint16 @@ -901,6 +938,7 @@ func (rr *RKEY) String() string { " " + rr.PublicKey } +// NSAPPTR RR. See RFC 1348. type NSAPPTR struct { Hdr RR_Header Ptr string `dns:"domain-name"` @@ -908,6 +946,7 @@ type NSAPPTR struct { func (rr *NSAPPTR) String() string { return rr.Hdr.String() + sprintName(rr.Ptr) } +// NSEC3 RR. See RFC 5155. type NSEC3 struct { Hdr RR_Header Hash uint8 @@ -946,6 +985,7 @@ func (rr *NSEC3) len() int { return l } +// NSEC3PARAM RR. See RFC 5155. type NSEC3PARAM struct { Hdr RR_Header Hash uint8 @@ -964,6 +1004,7 @@ func (rr *NSEC3PARAM) String() string { return s } +// TKEY RR. See RFC 2930. type TKEY struct { Hdr RR_Header Algorithm string `dns:"domain-name"` @@ -972,17 +1013,21 @@ type TKEY struct { Mode uint16 Error uint16 KeySize uint16 - Key string + Key string `dns:"size-hex:KeySize"` OtherLen uint16 - OtherData string + OtherData string `dns:"size-hex:OtherLen"` } +// TKEY has no official presentation format, but this will suffice. func (rr *TKEY) String() string { - // It has no presentation format - return "" + s := "\n;; TKEY PSEUDOSECTION:\n" + s += rr.Hdr.String() + " " + rr.Algorithm + " " + + strconv.Itoa(int(rr.KeySize)) + " " + rr.Key + " " + + strconv.Itoa(int(rr.OtherLen)) + " " + rr.OtherData + return s } -// RFC3597 represents an unknown/generic RR. +// RFC3597 represents an unknown/generic RR. See RFC 3597. type RFC3597 struct { Hdr RR_Header Rdata string `dns:"hex"` @@ -1006,6 +1051,7 @@ func rfc3597Header(h RR_Header) string { return s } +// URI RR. See RFC 7553. type URI struct { Hdr RR_Header Priority uint16 @@ -1018,6 +1064,7 @@ func (rr *URI) String() string { " " + strconv.Itoa(int(rr.Weight)) + " " + sprintTxtOctet(rr.Target) } +// DHCID RR. See RFC 4701. type DHCID struct { Hdr RR_Header Digest string `dns:"base64"` @@ -1025,6 +1072,7 @@ type DHCID struct { func (rr *DHCID) String() string { return rr.Hdr.String() + rr.Digest } +// TLSA RR. See RFC 6698. type TLSA struct { Hdr RR_Header Usage uint8 @@ -1041,6 +1089,7 @@ func (rr *TLSA) String() string { " " + rr.Certificate } +// SMIMEA RR. See RFC 8162. type SMIMEA struct { Hdr RR_Header Usage uint8 @@ -1063,6 +1112,7 @@ func (rr *SMIMEA) String() string { return s } +// HIP RR. See RFC 8005. type HIP struct { Hdr RR_Header HitLength uint8 @@ -1084,6 +1134,7 @@ func (rr *HIP) String() string { return s } +// NINFO RR. See https://www.iana.org/assignments/dns-parameters/NINFO/ninfo-completed-template. type NINFO struct { Hdr RR_Header ZSData []string `dns:"txt"` @@ -1091,6 +1142,7 @@ type NINFO struct { func (rr *NINFO) String() string { return rr.Hdr.String() + sprintTxt(rr.ZSData) } +// NID RR. See RFC RFC 6742. type NID struct { Hdr RR_Header Preference uint16 @@ -1104,6 +1156,7 @@ func (rr *NID) String() string { return s } +// L32 RR, See RFC 6742. type L32 struct { Hdr RR_Header Preference uint16 @@ -1118,6 +1171,7 @@ func (rr *L32) String() string { " " + rr.Locator32.String() } +// L64 RR, See RFC 6742. type L64 struct { Hdr RR_Header Preference uint16 @@ -1131,6 +1185,7 @@ func (rr *L64) String() string { return s } +// LP RR. See RFC 6742. type LP struct { Hdr RR_Header Preference uint16 @@ -1141,6 +1196,7 @@ func (rr *LP) String() string { return rr.Hdr.String() + strconv.Itoa(int(rr.Preference)) + " " + sprintName(rr.Fqdn) } +// EUI48 RR. See RFC 7043. type EUI48 struct { Hdr RR_Header Address uint64 `dns:"uint48"` @@ -1148,6 +1204,7 @@ type EUI48 struct { func (rr *EUI48) String() string { return rr.Hdr.String() + euiToString(rr.Address, 48) } +// EUI64 RR. See RFC 7043. type EUI64 struct { Hdr RR_Header Address uint64 @@ -1155,6 +1212,7 @@ type EUI64 struct { func (rr *EUI64) String() string { return rr.Hdr.String() + euiToString(rr.Address, 64) } +// CAA RR. See RFC 6844. type CAA struct { Hdr RR_Header Flag uint8 @@ -1166,6 +1224,7 @@ func (rr *CAA) String() string { return rr.Hdr.String() + strconv.Itoa(int(rr.Flag)) + " " + rr.Tag + " " + sprintTxtOctet(rr.Value) } +// UID RR. Deprecated, IANA-Reserved. type UID struct { Hdr RR_Header Uid uint32 @@ -1173,6 +1232,7 @@ type UID struct { func (rr *UID) String() string { return rr.Hdr.String() + strconv.FormatInt(int64(rr.Uid), 10) } +// GID RR. Deprecated, IANA-Reserved. type GID struct { Hdr RR_Header Gid uint32 @@ -1180,6 +1240,7 @@ type GID struct { func (rr *GID) String() string { return rr.Hdr.String() + strconv.FormatInt(int64(rr.Gid), 10) } +// UINFO RR. Deprecated, IANA-Reserved. type UINFO struct { Hdr RR_Header Uinfo string @@ -1187,6 +1248,7 @@ type UINFO struct { func (rr *UINFO) String() string { return rr.Hdr.String() + sprintTxt([]string{rr.Uinfo}) } +// EID RR. See http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt. type EID struct { Hdr RR_Header Endpoint string `dns:"hex"` @@ -1194,6 +1256,7 @@ type EID struct { func (rr *EID) String() string { return rr.Hdr.String() + strings.ToUpper(rr.Endpoint) } +// NIMLOC RR. See http://ana-3.lcs.mit.edu/~jnc/nimrod/dns.txt. type NIMLOC struct { Hdr RR_Header Locator string `dns:"hex"` @@ -1201,6 +1264,7 @@ type NIMLOC struct { func (rr *NIMLOC) String() string { return rr.Hdr.String() + strings.ToUpper(rr.Locator) } +// OPENPGPKEY RR. See RFC 7929. type OPENPGPKEY struct { Hdr RR_Header PublicKey string `dns:"base64"` @@ -1208,6 +1272,36 @@ type OPENPGPKEY struct { func (rr *OPENPGPKEY) String() string { return rr.Hdr.String() + rr.PublicKey } +// CSYNC RR. See RFC 7477. +type CSYNC struct { + Hdr RR_Header + Serial uint32 + Flags uint16 + TypeBitMap []uint16 `dns:"nsec"` +} + +func (rr *CSYNC) String() string { + s := rr.Hdr.String() + strconv.FormatInt(int64(rr.Serial), 10) + " " + strconv.Itoa(int(rr.Flags)) + + for i := 0; i < len(rr.TypeBitMap); i++ { + s += " " + Type(rr.TypeBitMap[i]).String() + } + return s +} + +func (rr *CSYNC) len() int { + l := rr.Hdr.len() + 4 + 2 + lastwindow := uint32(2 ^ 32 + 1) + for _, t := range rr.TypeBitMap { + window := t / 256 + if uint32(window) != lastwindow { + l += 1 + 32 + } + lastwindow = uint32(window) + } + return l +} + // TimeToString translates the RRSIG's incep. and expir. times to the // string representation used when printing the record. // It takes serial arithmetic (RFC 1982) into account. diff --git a/vendor/github.com/miekg/dns/types_generate.go b/vendor/github.com/miekg/dns/types_generate.go index dd13109..8703cce 100644 --- a/vendor/github.com/miekg/dns/types_generate.go +++ b/vendor/github.com/miekg/dns/types_generate.go @@ -23,11 +23,11 @@ var skipLen = map[string]struct{}{ "NSEC": {}, "NSEC3": {}, "OPT": {}, + "CSYNC": {}, } var packageHdr = ` -// *** DO NOT MODIFY *** -// AUTOGENERATED BY go generate from type_generate.go +// Code generated by "go run types_generate.go"; DO NOT EDIT. package dns @@ -56,7 +56,6 @@ var TypeToString = map[uint16]string{ `)) var headerFunc = template.Must(template.New("headerFunc").Parse(` -// Header() functions {{range .}} func (rr *{{.}}) Header() *RR_Header { return &rr.Hdr } {{end}} @@ -182,6 +181,8 @@ func main() { fallthrough case st.Tag(i) == `dns:"base64"`: o("l += base64.StdEncoding.DecodedLen(len(rr.%s))\n") + case strings.HasPrefix(st.Tag(i), `dns:"size-hex:`): // this has an extra field where the length is stored + o("l += len(rr.%s)/2\n") case strings.HasPrefix(st.Tag(i), `dns:"size-hex`): fallthrough case st.Tag(i) == `dns:"hex"`: diff --git a/vendor/github.com/miekg/dns/udp.go b/vendor/github.com/miekg/dns/udp.go index af111b9..f3f31a7 100644 --- a/vendor/github.com/miekg/dns/udp.go +++ b/vendor/github.com/miekg/dns/udp.go @@ -4,6 +4,9 @@ package dns import ( "net" + + "golang.org/x/net/ipv4" + "golang.org/x/net/ipv6" ) // SessionUDP holds the remote address and the associated @@ -27,8 +30,60 @@ func ReadFromSessionUDP(conn *net.UDPConn, b []byte) (int, *SessionUDP, error) { return n, &SessionUDP{raddr, oob[:oobn]}, err } -// WriteToSessionUDP acts just like net.UDPConn.WritetTo(), but uses a *SessionUDP instead of a net.Addr. +// WriteToSessionUDP acts just like net.UDPConn.WriteTo(), but uses a *SessionUDP instead of a net.Addr. func WriteToSessionUDP(conn *net.UDPConn, b []byte, session *SessionUDP) (int, error) { - n, _, err := conn.WriteMsgUDP(b, session.context, session.raddr) + oob := correctSource(session.context) + n, _, err := conn.WriteMsgUDP(b, oob, session.raddr) return n, err } + +func setUDPSocketOptions(conn *net.UDPConn) error { + // Try setting the flags for both families and ignore the errors unless they + // both error. + err6 := ipv6.NewPacketConn(conn).SetControlMessage(ipv6.FlagDst|ipv6.FlagInterface, true) + err4 := ipv4.NewPacketConn(conn).SetControlMessage(ipv4.FlagDst|ipv4.FlagInterface, true) + if err6 != nil && err4 != nil { + return err4 + } + return nil +} + +// parseDstFromOOB takes oob data and returns the destination IP. +func parseDstFromOOB(oob []byte) net.IP { + // Start with IPv6 and then fallback to IPv4 + // TODO(fastest963): Figure out a way to prefer one or the other. Looking at + // the lvl of the header for a 0 or 41 isn't cross-platform. + var dst net.IP + cm6 := new(ipv6.ControlMessage) + if cm6.Parse(oob) == nil { + dst = cm6.Dst + } + if dst == nil { + cm4 := new(ipv4.ControlMessage) + if cm4.Parse(oob) == nil { + dst = cm4.Dst + } + } + return dst +} + +// correctSource takes oob data and returns new oob data with the Src equal to the Dst +func correctSource(oob []byte) []byte { + dst := parseDstFromOOB(oob) + if dst == nil { + return nil + } + // If the dst is definitely an IPv6, then use ipv6's ControlMessage to + // respond otherwise use ipv4's because ipv6's marshal ignores ipv4 + // addresses. + if dst.To4() == nil { + cm := new(ipv6.ControlMessage) + cm.Src = dst + oob = cm.Marshal() + } else { + cm := new(ipv4.ControlMessage) + cm.Src = dst + oob = cm.Marshal() + } + return oob +} diff --git a/vendor/github.com/miekg/dns/udp_linux.go b/vendor/github.com/miekg/dns/udp_linux.go deleted file mode 100644 index 033df42..0000000 --- a/vendor/github.com/miekg/dns/udp_linux.go +++ /dev/null @@ -1,105 +0,0 @@ -// +build linux,!appengine - -package dns - -// See: -// * http://stackoverflow.com/questions/3062205/setting-the-source-ip-for-a-udp-socket and -// * http://blog.powerdns.com/2012/10/08/on-binding-datagram-udp-sockets-to-the-any-addresses/ -// -// Why do we need this: When listening on 0.0.0.0 with UDP so kernel decides what is the outgoing -// interface, this might not always be the correct one. This code will make sure the egress -// packet's interface matched the ingress' one. - -import ( - "net" - "syscall" -) - -// setUDPSocketOptions sets the UDP socket options. -// This function is implemented on a per platform basis. See udp_*.go for more details -func setUDPSocketOptions(conn *net.UDPConn) error { - sa, err := getUDPSocketName(conn) - if err != nil { - return err - } - switch sa.(type) { - case *syscall.SockaddrInet6: - v6only, err := getUDPSocketOptions6Only(conn) - if err != nil { - return err - } - setUDPSocketOptions6(conn) - if !v6only { - setUDPSocketOptions4(conn) - } - case *syscall.SockaddrInet4: - setUDPSocketOptions4(conn) - } - return nil -} - -// setUDPSocketOptions4 prepares the v4 socket for sessions. -func setUDPSocketOptions4(conn *net.UDPConn) error { - file, err := conn.File() - if err != nil { - return err - } - if err := syscall.SetsockoptInt(int(file.Fd()), syscall.IPPROTO_IP, syscall.IP_PKTINFO, 1); err != nil { - file.Close() - return err - } - // Calling File() above results in the connection becoming blocking, we must fix that. - // See https://github.com/miekg/dns/issues/279 - err = syscall.SetNonblock(int(file.Fd()), true) - if err != nil { - file.Close() - return err - } - file.Close() - return nil -} - -// setUDPSocketOptions6 prepares the v6 socket for sessions. -func setUDPSocketOptions6(conn *net.UDPConn) error { - file, err := conn.File() - if err != nil { - return err - } - if err := syscall.SetsockoptInt(int(file.Fd()), syscall.IPPROTO_IPV6, syscall.IPV6_RECVPKTINFO, 1); err != nil { - file.Close() - return err - } - err = syscall.SetNonblock(int(file.Fd()), true) - if err != nil { - file.Close() - return err - } - file.Close() - return nil -} - -// getUDPSocketOption6Only return true if the socket is v6 only and false when it is v4/v6 combined -// (dualstack). -func getUDPSocketOptions6Only(conn *net.UDPConn) (bool, error) { - file, err := conn.File() - if err != nil { - return false, err - } - // dual stack. See http://stackoverflow.com/questions/1618240/how-to-support-both-ipv4-and-ipv6-connections - v6only, err := syscall.GetsockoptInt(int(file.Fd()), syscall.IPPROTO_IPV6, syscall.IPV6_V6ONLY) - if err != nil { - file.Close() - return false, err - } - file.Close() - return v6only == 1, nil -} - -func getUDPSocketName(conn *net.UDPConn) (syscall.Sockaddr, error) { - file, err := conn.File() - if err != nil { - return nil, err - } - defer file.Close() - return syscall.Getsockname(int(file.Fd())) -} diff --git a/vendor/github.com/miekg/dns/udp_other.go b/vendor/github.com/miekg/dns/udp_other.go deleted file mode 100644 index 488a282..0000000 --- a/vendor/github.com/miekg/dns/udp_other.go +++ /dev/null @@ -1,15 +0,0 @@ -// +build !linux appengine - -package dns - -import ( - "net" -) - -// These do nothing. See udp_linux.go for an example of how to implement this. - -// We tried to adhire to some kind of naming scheme. -func setUDPSocketOptions(conn *net.UDPConn) error { return nil } -func setUDPSocketOptions4(conn *net.UDPConn) error { return nil } -func setUDPSocketOptions6(conn *net.UDPConn) error { return nil } -func getUDPSocketOptions6Only(conn *net.UDPConn) (bool, error) { return false, nil } diff --git a/vendor/github.com/miekg/dns/udp_windows.go b/vendor/github.com/miekg/dns/udp_windows.go index 51e532a..6778c3c 100644 --- a/vendor/github.com/miekg/dns/udp_windows.go +++ b/vendor/github.com/miekg/dns/udp_windows.go @@ -4,14 +4,17 @@ package dns import "net" +// SessionUDP holds the remote address type SessionUDP struct { raddr *net.UDPAddr } +// RemoteAddr returns the remote network address. func (s *SessionUDP) RemoteAddr() net.Addr { return s.raddr } // ReadFromSessionUDP acts just like net.UDPConn.ReadFrom(), but returns a session object instead of a // net.UDPAddr. +// TODO(fastest963): Once go1.10 is released, use ReadMsgUDP. func ReadFromSessionUDP(conn *net.UDPConn, b []byte) (int, *SessionUDP, error) { n, raddr, err := conn.ReadFrom(b) if err != nil { @@ -21,9 +24,14 @@ func ReadFromSessionUDP(conn *net.UDPConn, b []byte) (int, *SessionUDP, error) { return n, session, err } -// WriteToSessionUDP acts just like net.UDPConn.WritetTo(), but uses a *SessionUDP instead of a net.Addr. +// WriteToSessionUDP acts just like net.UDPConn.WriteTo(), but uses a *SessionUDP instead of a net.Addr. +// TODO(fastest963): Once go1.10 is released, use WriteMsgUDP. func WriteToSessionUDP(conn *net.UDPConn, b []byte, session *SessionUDP) (int, error) { n, err := conn.WriteTo(b, session.raddr) return n, err } +// TODO(fastest963): Once go1.10 is released and we can use *MsgUDP methods +// use the standard method in udp.go for these. +func setUDPSocketOptions(*net.UDPConn) error { return nil } +func parseDstFromOOB([]byte, net.IP) net.IP { return nil } diff --git a/vendor/github.com/miekg/dns/version.go b/vendor/github.com/miekg/dns/version.go new file mode 100644 index 0000000..8d3b71c --- /dev/null +++ b/vendor/github.com/miekg/dns/version.go @@ -0,0 +1,15 @@ +package dns + +import "fmt" + +// Version is current version of this library. +var Version = V{1, 0, 1} + +// V holds the version of this library. +type V struct { + Major, Minor, Patch int +} + +func (v V) String() string { + return fmt.Sprintf("%d.%d.%d", v.Major, v.Minor, v.Patch) +} diff --git a/vendor/github.com/miekg/dns/xfr.go b/vendor/github.com/miekg/dns/xfr.go index 576c559..5d0ff5c 100644 --- a/vendor/github.com/miekg/dns/xfr.go +++ b/vendor/github.com/miekg/dns/xfr.go @@ -17,7 +17,7 @@ type Transfer struct { DialTimeout time.Duration // net.DialTimeout, defaults to 2 seconds ReadTimeout time.Duration // net.Conn.SetReadTimeout value for connections, defaults to 2 seconds WriteTimeout time.Duration // net.Conn.SetWriteTimeout value for connections, defaults to 2 seconds - TsigSecret map[string]string // Secret(s) for Tsig map[], zonename must be fully qualified + TsigSecret map[string]string // Secret(s) for Tsig map[], zonename must be in canonical form (lowercase, fqdn, see RFC 4034 Section 6.2) tsigTimersOnly bool } @@ -51,18 +51,18 @@ func (t *Transfer) In(q *Msg, a string) (env chan *Envelope, err error) { env = make(chan *Envelope) go func() { if q.Question[0].Qtype == TypeAXFR { - go t.inAxfr(q.Id, env) + go t.inAxfr(q, env) return } if q.Question[0].Qtype == TypeIXFR { - go t.inIxfr(q.Id, env) + go t.inIxfr(q, env) return } }() return env, nil } -func (t *Transfer) inAxfr(id uint16, c chan *Envelope) { +func (t *Transfer) inAxfr(q *Msg, c chan *Envelope) { first := true defer t.Close() defer close(c) @@ -77,7 +77,7 @@ func (t *Transfer) inAxfr(id uint16, c chan *Envelope) { c <- &Envelope{nil, err} return } - if id != in.Id { + if q.Id != in.Id { c <- &Envelope{in.Answer, ErrId} return } @@ -110,9 +110,11 @@ func (t *Transfer) inAxfr(id uint16, c chan *Envelope) { } } -func (t *Transfer) inIxfr(id uint16, c chan *Envelope) { +func (t *Transfer) inIxfr(q *Msg, c chan *Envelope) { serial := uint32(0) // The first serial seen is the current server serial - first := true + axfr := true + n := 0 + qser := q.Ns[0].(*SOA).Serial defer t.Close() defer close(c) timeout := dnsTimeout @@ -126,21 +128,15 @@ func (t *Transfer) inIxfr(id uint16, c chan *Envelope) { c <- &Envelope{nil, err} return } - if id != in.Id { + if q.Id != in.Id { c <- &Envelope{in.Answer, ErrId} return } - if first { - if in.Rcode != RcodeSuccess { - c <- &Envelope{in.Answer, &Error{err: fmt.Sprintf(errXFR, in.Rcode)}} - return - } - // A single SOA RR signals "no changes" - if len(in.Answer) == 1 && isSOAFirst(in) { - c <- &Envelope{in.Answer, nil} - return - } - + if in.Rcode != RcodeSuccess { + c <- &Envelope{in.Answer, &Error{err: fmt.Sprintf(errXFR, in.Rcode)}} + return + } + if n == 0 { // Check if the returned answer is ok if !isSOAFirst(in) { c <- &Envelope{in.Answer, ErrSoa} @@ -148,21 +144,30 @@ func (t *Transfer) inIxfr(id uint16, c chan *Envelope) { } // This serial is important serial = in.Answer[0].(*SOA).Serial - first = !first + // Check if there are no changes in zone + if qser >= serial { + c <- &Envelope{in.Answer, nil} + return + } } - // Now we need to check each message for SOA records, to see what we need to do - if !first { - t.tsigTimersOnly = true - // If the last record in the IXFR contains the servers' SOA, we should quit - if v, ok := in.Answer[len(in.Answer)-1].(*SOA); ok { + t.tsigTimersOnly = true + for _, rr := range in.Answer { + if v, ok := rr.(*SOA); ok { if v.Serial == serial { - c <- &Envelope{in.Answer, nil} - return + n++ + // quit if it's a full axfr or the the servers' SOA is repeated the third time + if axfr && n == 2 || n == 3 { + c <- &Envelope{in.Answer, nil} + return + } + } else if axfr { + // it's an ixfr + axfr = false } } - c <- &Envelope{in.Answer, nil} } + c <- &Envelope{in.Answer, nil} } } diff --git a/vendor/github.com/miekg/dns/zcompress.go b/vendor/github.com/miekg/dns/zcompress.go index b277978..c250320 100644 --- a/vendor/github.com/miekg/dns/zcompress.go +++ b/vendor/github.com/miekg/dns/zcompress.go @@ -1,87 +1,83 @@ -// *** DO NOT MODIFY *** -// AUTOGENERATED BY go generate from compress_generate.go +// Code generated by "go run compress_generate.go"; DO NOT EDIT. package dns func compressionLenHelperType(c map[string]int, r RR) { switch x := r.(type) { - case *PTR: - compressionLenHelper(c, x.Ptr) - case *SOA: - compressionLenHelper(c, x.Ns) - compressionLenHelper(c, x.Mbox) case *AFSDB: compressionLenHelper(c, x.Hostname) + case *CNAME: + compressionLenHelper(c, x.Target) + case *DNAME: + compressionLenHelper(c, x.Target) case *HIP: for i := range x.RendezvousServers { compressionLenHelper(c, x.RendezvousServers[i]) } + case *KX: + compressionLenHelper(c, x.Exchanger) case *LP: compressionLenHelper(c, x.Fqdn) - case *CNAME: - compressionLenHelper(c, x.Target) case *MB: compressionLenHelper(c, x.Mb) - case *RP: - compressionLenHelper(c, x.Mbox) - compressionLenHelper(c, x.Txt) - case *RRSIG: - compressionLenHelper(c, x.SignerName) + case *MD: + compressionLenHelper(c, x.Md) case *MF: compressionLenHelper(c, x.Mf) + case *MG: + compressionLenHelper(c, x.Mg) case *MINFO: compressionLenHelper(c, x.Rmail) compressionLenHelper(c, x.Email) - case *SIG: - compressionLenHelper(c, x.SignerName) - case *SRV: - compressionLenHelper(c, x.Target) - case *TSIG: - compressionLenHelper(c, x.Algorithm) - case *KX: - compressionLenHelper(c, x.Exchanger) - case *MG: - compressionLenHelper(c, x.Mg) - case *NSAPPTR: - compressionLenHelper(c, x.Ptr) - case *PX: - compressionLenHelper(c, x.Map822) - compressionLenHelper(c, x.Mapx400) - case *DNAME: - compressionLenHelper(c, x.Target) case *MR: compressionLenHelper(c, x.Mr) case *MX: compressionLenHelper(c, x.Mx) - case *TKEY: - compressionLenHelper(c, x.Algorithm) - case *NSEC: - compressionLenHelper(c, x.NextDomain) - case *TALINK: - compressionLenHelper(c, x.PreviousName) - compressionLenHelper(c, x.NextName) - case *MD: - compressionLenHelper(c, x.Md) case *NAPTR: compressionLenHelper(c, x.Replacement) case *NS: compressionLenHelper(c, x.Ns) + case *NSAPPTR: + compressionLenHelper(c, x.Ptr) + case *NSEC: + compressionLenHelper(c, x.NextDomain) + case *PTR: + compressionLenHelper(c, x.Ptr) + case *PX: + compressionLenHelper(c, x.Map822) + compressionLenHelper(c, x.Mapx400) + case *RP: + compressionLenHelper(c, x.Mbox) + compressionLenHelper(c, x.Txt) + case *RRSIG: + compressionLenHelper(c, x.SignerName) case *RT: compressionLenHelper(c, x.Host) + case *SIG: + compressionLenHelper(c, x.SignerName) + case *SOA: + compressionLenHelper(c, x.Ns) + compressionLenHelper(c, x.Mbox) + case *SRV: + compressionLenHelper(c, x.Target) + case *TALINK: + compressionLenHelper(c, x.PreviousName) + compressionLenHelper(c, x.NextName) + case *TKEY: + compressionLenHelper(c, x.Algorithm) + case *TSIG: + compressionLenHelper(c, x.Algorithm) } } func compressionLenSearchType(c map[string]int, r RR) (int, bool) { switch x := r.(type) { - case *MG: - k1, ok1 := compressionLenSearch(c, x.Mg) - return k1, ok1 - case *PTR: - k1, ok1 := compressionLenSearch(c, x.Ptr) - return k1, ok1 case *AFSDB: k1, ok1 := compressionLenSearch(c, x.Hostname) return k1, ok1 + case *CNAME: + k1, ok1 := compressionLenSearch(c, x.Target) + return k1, ok1 case *MB: k1, ok1 := compressionLenSearch(c, x.Mb) return k1, ok1 @@ -91,18 +87,8 @@ func compressionLenSearchType(c map[string]int, r RR) (int, bool) { case *MF: k1, ok1 := compressionLenSearch(c, x.Mf) return k1, ok1 - case *NS: - k1, ok1 := compressionLenSearch(c, x.Ns) - return k1, ok1 - case *RT: - k1, ok1 := compressionLenSearch(c, x.Host) - return k1, ok1 - case *SOA: - k1, ok1 := compressionLenSearch(c, x.Ns) - k2, ok2 := compressionLenSearch(c, x.Mbox) - return k1 + k2, ok1 && ok2 - case *CNAME: - k1, ok1 := compressionLenSearch(c, x.Target) + case *MG: + k1, ok1 := compressionLenSearch(c, x.Mg) return k1, ok1 case *MINFO: k1, ok1 := compressionLenSearch(c, x.Rmail) @@ -114,6 +100,19 @@ func compressionLenSearchType(c map[string]int, r RR) (int, bool) { case *MX: k1, ok1 := compressionLenSearch(c, x.Mx) return k1, ok1 + case *NS: + k1, ok1 := compressionLenSearch(c, x.Ns) + return k1, ok1 + case *PTR: + k1, ok1 := compressionLenSearch(c, x.Ptr) + return k1, ok1 + case *RT: + k1, ok1 := compressionLenSearch(c, x.Host) + return k1, ok1 + case *SOA: + k1, ok1 := compressionLenSearch(c, x.Ns) + k2, ok2 := compressionLenSearch(c, x.Mbox) + return k1 + k2, ok1 && ok2 } return 0, false } diff --git a/vendor/github.com/miekg/dns/zmsg.go b/vendor/github.com/miekg/dns/zmsg.go index 418fb1f..0d1f6f4 100644 --- a/vendor/github.com/miekg/dns/zmsg.go +++ b/vendor/github.com/miekg/dns/zmsg.go @@ -1,5 +1,4 @@ -// *** DO NOT MODIFY *** -// AUTOGENERATED BY go generate from msg_generate.go +// Code generated by "go run msg_generate.go"; DO NOT EDIT. package dns @@ -189,6 +188,28 @@ func (rr *CNAME) pack(msg []byte, off int, compression map[string]int, compress return off, nil } +func (rr *CSYNC) pack(msg []byte, off int, compression map[string]int, compress bool) (int, error) { + off, err := rr.Hdr.pack(msg, off, compression, compress) + if err != nil { + return off, err + } + headerEnd := off + off, err = packUint32(rr.Serial, msg, off) + if err != nil { + return off, err + } + off, err = packUint16(rr.Flags, msg, off) + if err != nil { + return off, err + } + off, err = packDataNsec(rr.TypeBitMap, msg, off) + if err != nil { + return off, err + } + rr.Header().Rdlength = uint16(off - headerEnd) + return off, nil +} + func (rr *DHCID) pack(msg []byte, off int, compression map[string]int, compress bool) (int, error) { off, err := rr.Hdr.pack(msg, off, compression, compress) if err != nil { @@ -1303,7 +1324,7 @@ func (rr *TKEY) pack(msg []byte, off int, compression map[string]int, compress b if err != nil { return off, err } - off, err = packString(rr.Key, msg, off) + off, err = packStringHex(rr.Key, msg, off) if err != nil { return off, err } @@ -1311,7 +1332,7 @@ func (rr *TKEY) pack(msg []byte, off int, compression map[string]int, compress b if err != nil { return off, err } - off, err = packString(rr.OtherData, msg, off) + off, err = packStringHex(rr.OtherData, msg, off) if err != nil { return off, err } @@ -1721,6 +1742,37 @@ func unpackCNAME(h RR_Header, msg []byte, off int) (RR, int, error) { return rr, off, err } +func unpackCSYNC(h RR_Header, msg []byte, off int) (RR, int, error) { + rr := new(CSYNC) + rr.Hdr = h + if noRdata(h) { + return rr, off, nil + } + var err error + rdStart := off + _ = rdStart + + rr.Serial, off, err = unpackUint32(msg, off) + if err != nil { + return rr, off, err + } + if off == len(msg) { + return rr, off, nil + } + rr.Flags, off, err = unpackUint16(msg, off) + if err != nil { + return rr, off, err + } + if off == len(msg) { + return rr, off, nil + } + rr.TypeBitMap, off, err = unpackDataNsec(msg, off) + if err != nil { + return rr, off, err + } + return rr, off, err +} + func unpackDHCID(h RR_Header, msg []byte, off int) (RR, int, error) { rr := new(DHCID) rr.Hdr = h @@ -3265,13 +3317,10 @@ func unpackTKEY(h RR_Header, msg []byte, off int) (RR, int, error) { if off == len(msg) { return rr, off, nil } - rr.Key, off, err = unpackString(msg, off) + rr.Key, off, err = unpackStringHex(msg, off, off+int(rr.KeySize)) if err != nil { return rr, off, err } - if off == len(msg) { - return rr, off, nil - } rr.OtherLen, off, err = unpackUint16(msg, off) if err != nil { return rr, off, err @@ -3279,7 +3328,7 @@ func unpackTKEY(h RR_Header, msg []byte, off int) (RR, int, error) { if off == len(msg) { return rr, off, nil } - rr.OtherData, off, err = unpackString(msg, off) + rr.OtherData, off, err = unpackStringHex(msg, off, off+int(rr.OtherLen)) if err != nil { return rr, off, err } @@ -3504,6 +3553,7 @@ var typeToUnpack = map[uint16]func(RR_Header, []byte, int) (RR, int, error){ TypeCDS: unpackCDS, TypeCERT: unpackCERT, TypeCNAME: unpackCNAME, + TypeCSYNC: unpackCSYNC, TypeDHCID: unpackDHCID, TypeDLV: unpackDLV, TypeDNAME: unpackDNAME, diff --git a/vendor/github.com/miekg/dns/ztypes.go b/vendor/github.com/miekg/dns/ztypes.go index 3e534f1..abd75dd 100644 --- a/vendor/github.com/miekg/dns/ztypes.go +++ b/vendor/github.com/miekg/dns/ztypes.go @@ -1,5 +1,4 @@ -// *** DO NOT MODIFY *** -// AUTOGENERATED BY go generate from type_generate.go +// Code generated by "go run types_generate.go"; DO NOT EDIT. package dns @@ -20,6 +19,7 @@ var TypeToRR = map[uint16]func() RR{ TypeCDS: func() RR { return new(CDS) }, TypeCERT: func() RR { return new(CERT) }, TypeCNAME: func() RR { return new(CNAME) }, + TypeCSYNC: func() RR { return new(CSYNC) }, TypeDHCID: func() RR { return new(DHCID) }, TypeDLV: func() RR { return new(DLV) }, TypeDNAME: func() RR { return new(DNAME) }, @@ -94,6 +94,7 @@ var TypeToString = map[uint16]string{ TypeCDS: "CDS", TypeCERT: "CERT", TypeCNAME: "CNAME", + TypeCSYNC: "CSYNC", TypeDHCID: "DHCID", TypeDLV: "DLV", TypeDNAME: "DNAME", @@ -163,7 +164,6 @@ var TypeToString = map[uint16]string{ TypeNSAPPTR: "NSAP-PTR", } -// Header() functions func (rr *A) Header() *RR_Header { return &rr.Hdr } func (rr *AAAA) Header() *RR_Header { return &rr.Hdr } func (rr *AFSDB) Header() *RR_Header { return &rr.Hdr } @@ -174,6 +174,7 @@ func (rr *CDNSKEY) Header() *RR_Header { return &rr.Hdr } func (rr *CDS) Header() *RR_Header { return &rr.Hdr } func (rr *CERT) Header() *RR_Header { return &rr.Hdr } func (rr *CNAME) Header() *RR_Header { return &rr.Hdr } +func (rr *CSYNC) Header() *RR_Header { return &rr.Hdr } func (rr *DHCID) Header() *RR_Header { return &rr.Hdr } func (rr *DLV) Header() *RR_Header { return &rr.Hdr } func (rr *DNAME) Header() *RR_Header { return &rr.Hdr } @@ -346,7 +347,7 @@ func (rr *HIP) len() int { l++ // HitLength l++ // PublicKeyAlgorithm l += 2 // PublicKeyLength - l += len(rr.Hit)/2 + 1 + l += len(rr.Hit) / 2 l += base64.StdEncoding.DecodedLen(len(rr.PublicKey)) for _, x := range rr.RendezvousServers { l += len(x) + 1 @@ -469,7 +470,7 @@ func (rr *NSEC3PARAM) len() int { l++ // Flags l += 2 // Iterations l++ // SaltLength - l += len(rr.Salt)/2 + 1 + l += len(rr.Salt) / 2 return l } func (rr *OPENPGPKEY) len() int { @@ -590,9 +591,9 @@ func (rr *TKEY) len() int { l += 2 // Mode l += 2 // Error l += 2 // KeySize - l += len(rr.Key) + 1 + l += len(rr.Key) / 2 l += 2 // OtherLen - l += len(rr.OtherData) + 1 + l += len(rr.OtherData) / 2 return l } func (rr *TLSA) len() int { @@ -609,11 +610,11 @@ func (rr *TSIG) len() int { l += 6 // TimeSigned l += 2 // Fudge l += 2 // MACSize - l += len(rr.MAC)/2 + 1 + l += len(rr.MAC) / 2 l += 2 // OrigId l += 2 // Error l += 2 // OtherLen - l += len(rr.OtherData)/2 + 1 + l += len(rr.OtherData) / 2 return l } func (rr *TXT) len() int { @@ -673,6 +674,11 @@ func (rr *CERT) copy() RR { func (rr *CNAME) copy() RR { return &CNAME{*rr.Hdr.copyHeader(), rr.Target} } +func (rr *CSYNC) copy() RR { + TypeBitMap := make([]uint16, len(rr.TypeBitMap)) + copy(TypeBitMap, rr.TypeBitMap) + return &CSYNC{*rr.Hdr.copyHeader(), rr.Serial, rr.Flags, TypeBitMap} +} func (rr *DHCID) copy() RR { return &DHCID{*rr.Hdr.copyHeader(), rr.Digest} } diff --git a/vendor/golang.org/x/crypto/LICENSE b/vendor/golang.org/x/crypto/LICENSE new file mode 100644 index 0000000..6a66aea --- /dev/null +++ b/vendor/golang.org/x/crypto/LICENSE @@ -0,0 +1,27 @@ +Copyright (c) 2009 The Go Authors. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + * Redistributions of source code must retain the above copyright +notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above +copyright notice, this list of conditions and the following disclaimer +in the documentation and/or other materials provided with the +distribution. + * Neither the name of Google Inc. nor the names of its +contributors may be used to endorse or promote products derived from +this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/golang.org/x/crypto/PATENTS b/vendor/golang.org/x/crypto/PATENTS new file mode 100644 index 0000000..7330990 --- /dev/null +++ b/vendor/golang.org/x/crypto/PATENTS @@ -0,0 +1,22 @@ +Additional IP Rights Grant (Patents) + +"This implementation" means the copyrightable works distributed by +Google as part of the Go project. + +Google hereby grants to You a perpetual, worldwide, non-exclusive, +no-charge, royalty-free, irrevocable (except as stated in this section) +patent license to make, have made, use, offer to sell, sell, import, +transfer and otherwise run, modify and propagate the contents of this +implementation of Go, where such license applies only to those patent +claims, both currently owned or controlled by Google and acquired in +the future, licensable by Google that are necessarily infringed by this +implementation of Go. This grant does not include claims that would be +infringed only as a consequence of further modification of this +implementation. If you or your agent or exclusive licensee institute or +order or agree to the institution of patent litigation against any +entity (including a cross-claim or counterclaim in a lawsuit) alleging +that this implementation of Go or any code incorporated within this +implementation of Go constitutes direct or contributory patent +infringement, or inducement of patent infringement, then any patent +rights granted to you under this License for this implementation of Go +shall terminate as of the date such litigation is filed. diff --git a/vendor/golang.org/x/crypto/ed25519/ed25519.go b/vendor/golang.org/x/crypto/ed25519/ed25519.go new file mode 100644 index 0000000..4f26b49 --- /dev/null +++ b/vendor/golang.org/x/crypto/ed25519/ed25519.go @@ -0,0 +1,181 @@ +// Copyright 2016 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// Package ed25519 implements the Ed25519 signature algorithm. See +// https://ed25519.cr.yp.to/. +// +// These functions are also compatible with the “Ed25519” function defined in +// RFC 8032. +package ed25519 + +// This code is a port of the public domain, “ref10” implementation of ed25519 +// from SUPERCOP. + +import ( + "bytes" + "crypto" + cryptorand "crypto/rand" + "crypto/sha512" + "errors" + "io" + "strconv" + + "golang.org/x/crypto/ed25519/internal/edwards25519" +) + +const ( + // PublicKeySize is the size, in bytes, of public keys as used in this package. + PublicKeySize = 32 + // PrivateKeySize is the size, in bytes, of private keys as used in this package. + PrivateKeySize = 64 + // SignatureSize is the size, in bytes, of signatures generated and verified by this package. + SignatureSize = 64 +) + +// PublicKey is the type of Ed25519 public keys. +type PublicKey []byte + +// PrivateKey is the type of Ed25519 private keys. It implements crypto.Signer. +type PrivateKey []byte + +// Public returns the PublicKey corresponding to priv. +func (priv PrivateKey) Public() crypto.PublicKey { + publicKey := make([]byte, PublicKeySize) + copy(publicKey, priv[32:]) + return PublicKey(publicKey) +} + +// Sign signs the given message with priv. +// Ed25519 performs two passes over messages to be signed and therefore cannot +// handle pre-hashed messages. Thus opts.HashFunc() must return zero to +// indicate the message hasn't been hashed. This can be achieved by passing +// crypto.Hash(0) as the value for opts. +func (priv PrivateKey) Sign(rand io.Reader, message []byte, opts crypto.SignerOpts) (signature []byte, err error) { + if opts.HashFunc() != crypto.Hash(0) { + return nil, errors.New("ed25519: cannot sign hashed message") + } + + return Sign(priv, message), nil +} + +// GenerateKey generates a public/private key pair using entropy from rand. +// If rand is nil, crypto/rand.Reader will be used. +func GenerateKey(rand io.Reader) (publicKey PublicKey, privateKey PrivateKey, err error) { + if rand == nil { + rand = cryptorand.Reader + } + + privateKey = make([]byte, PrivateKeySize) + publicKey = make([]byte, PublicKeySize) + _, err = io.ReadFull(rand, privateKey[:32]) + if err != nil { + return nil, nil, err + } + + digest := sha512.Sum512(privateKey[:32]) + digest[0] &= 248 + digest[31] &= 127 + digest[31] |= 64 + + var A edwards25519.ExtendedGroupElement + var hBytes [32]byte + copy(hBytes[:], digest[:]) + edwards25519.GeScalarMultBase(&A, &hBytes) + var publicKeyBytes [32]byte + A.ToBytes(&publicKeyBytes) + + copy(privateKey[32:], publicKeyBytes[:]) + copy(publicKey, publicKeyBytes[:]) + + return publicKey, privateKey, nil +} + +// Sign signs the message with privateKey and returns a signature. It will +// panic if len(privateKey) is not PrivateKeySize. +func Sign(privateKey PrivateKey, message []byte) []byte { + if l := len(privateKey); l != PrivateKeySize { + panic("ed25519: bad private key length: " + strconv.Itoa(l)) + } + + h := sha512.New() + h.Write(privateKey[:32]) + + var digest1, messageDigest, hramDigest [64]byte + var expandedSecretKey [32]byte + h.Sum(digest1[:0]) + copy(expandedSecretKey[:], digest1[:]) + expandedSecretKey[0] &= 248 + expandedSecretKey[31] &= 63 + expandedSecretKey[31] |= 64 + + h.Reset() + h.Write(digest1[32:]) + h.Write(message) + h.Sum(messageDigest[:0]) + + var messageDigestReduced [32]byte + edwards25519.ScReduce(&messageDigestReduced, &messageDigest) + var R edwards25519.ExtendedGroupElement + edwards25519.GeScalarMultBase(&R, &messageDigestReduced) + + var encodedR [32]byte + R.ToBytes(&encodedR) + + h.Reset() + h.Write(encodedR[:]) + h.Write(privateKey[32:]) + h.Write(message) + h.Sum(hramDigest[:0]) + var hramDigestReduced [32]byte + edwards25519.ScReduce(&hramDigestReduced, &hramDigest) + + var s [32]byte + edwards25519.ScMulAdd(&s, &hramDigestReduced, &expandedSecretKey, &messageDigestReduced) + + signature := make([]byte, SignatureSize) + copy(signature[:], encodedR[:]) + copy(signature[32:], s[:]) + + return signature +} + +// Verify reports whether sig is a valid signature of message by publicKey. It +// will panic if len(publicKey) is not PublicKeySize. +func Verify(publicKey PublicKey, message, sig []byte) bool { + if l := len(publicKey); l != PublicKeySize { + panic("ed25519: bad public key length: " + strconv.Itoa(l)) + } + + if len(sig) != SignatureSize || sig[63]&224 != 0 { + return false + } + + var A edwards25519.ExtendedGroupElement + var publicKeyBytes [32]byte + copy(publicKeyBytes[:], publicKey) + if !A.FromBytes(&publicKeyBytes) { + return false + } + edwards25519.FeNeg(&A.X, &A.X) + edwards25519.FeNeg(&A.T, &A.T) + + h := sha512.New() + h.Write(sig[:32]) + h.Write(publicKey[:]) + h.Write(message) + var digest [64]byte + h.Sum(digest[:0]) + + var hReduced [32]byte + edwards25519.ScReduce(&hReduced, &digest) + + var R edwards25519.ProjectiveGroupElement + var b [32]byte + copy(b[:], sig[32:]) + edwards25519.GeDoubleScalarMultVartime(&R, &hReduced, &A, &b) + + var checkR [32]byte + R.ToBytes(&checkR) + return bytes.Equal(sig[:32], checkR[:]) +} diff --git a/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/const.go b/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/const.go new file mode 100644 index 0000000..e39f086 --- /dev/null +++ b/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/const.go @@ -0,0 +1,1422 @@ +// Copyright 2016 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package edwards25519 + +// These values are from the public domain, “ref10” implementation of ed25519 +// from SUPERCOP. + +// d is a constant in the Edwards curve equation. +var d = FieldElement{ + -10913610, 13857413, -15372611, 6949391, 114729, -8787816, -6275908, -3247719, -18696448, -12055116, +} + +// d2 is 2*d. +var d2 = FieldElement{ + -21827239, -5839606, -30745221, 13898782, 229458, 15978800, -12551817, -6495438, 29715968, 9444199, +} + +// SqrtM1 is the square-root of -1 in the field. +var SqrtM1 = FieldElement{ + -32595792, -7943725, 9377950, 3500415, 12389472, -272473, -25146209, -2005654, 326686, 11406482, +} + +// A is a constant in the Montgomery-form of curve25519. +var A = FieldElement{ + 486662, 0, 0, 0, 0, 0, 0, 0, 0, 0, +} + +// bi contains precomputed multiples of the base-point. See the Ed25519 paper +// for a discussion about how these values are used. +var bi = [8]PreComputedGroupElement{ + { + FieldElement{25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605}, + FieldElement{-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378}, + FieldElement{-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546}, + }, + { + FieldElement{15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024}, + FieldElement{16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574}, + FieldElement{30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357}, + }, + { + FieldElement{10861363, 11473154, 27284546, 1981175, -30064349, 12577861, 32867885, 14515107, -15438304, 10819380}, + FieldElement{4708026, 6336745, 20377586, 9066809, -11272109, 6594696, -25653668, 12483688, -12668491, 5581306}, + FieldElement{19563160, 16186464, -29386857, 4097519, 10237984, -4348115, 28542350, 13850243, -23678021, -15815942}, + }, + { + FieldElement{5153746, 9909285, 1723747, -2777874, 30523605, 5516873, 19480852, 5230134, -23952439, -15175766}, + FieldElement{-30269007, -3463509, 7665486, 10083793, 28475525, 1649722, 20654025, 16520125, 30598449, 7715701}, + FieldElement{28881845, 14381568, 9657904, 3680757, -20181635, 7843316, -31400660, 1370708, 29794553, -1409300}, + }, + { + FieldElement{-22518993, -6692182, 14201702, -8745502, -23510406, 8844726, 18474211, -1361450, -13062696, 13821877}, + FieldElement{-6455177, -7839871, 3374702, -4740862, -27098617, -10571707, 31655028, -7212327, 18853322, -14220951}, + FieldElement{4566830, -12963868, -28974889, -12240689, -7602672, -2830569, -8514358, -10431137, 2207753, -3209784}, + }, + { + FieldElement{-25154831, -4185821, 29681144, 7868801, -6854661, -9423865, -12437364, -663000, -31111463, -16132436}, + FieldElement{25576264, -2703214, 7349804, -11814844, 16472782, 9300885, 3844789, 15725684, 171356, 6466918}, + FieldElement{23103977, 13316479, 9739013, -16149481, 817875, -15038942, 8965339, -14088058, -30714912, 16193877}, + }, + { + FieldElement{-33521811, 3180713, -2394130, 14003687, -16903474, -16270840, 17238398, 4729455, -18074513, 9256800}, + FieldElement{-25182317, -4174131, 32336398, 5036987, -21236817, 11360617, 22616405, 9761698, -19827198, 630305}, + FieldElement{-13720693, 2639453, -24237460, -7406481, 9494427, -5774029, -6554551, -15960994, -2449256, -14291300}, + }, + { + FieldElement{-3151181, -5046075, 9282714, 6866145, -31907062, -863023, -18940575, 15033784, 25105118, -7894876}, + FieldElement{-24326370, 15950226, -31801215, -14592823, -11662737, -5090925, 1573892, -2625887, 2198790, -15804619}, + FieldElement{-3099351, 10324967, -2241613, 7453183, -5446979, -2735503, -13812022, -16236442, -32461234, -12290683}, + }, +} + +// base contains precomputed multiples of the base-point. See the Ed25519 paper +// for a discussion about how these values are used. +var base = [32][8]PreComputedGroupElement{ + { + { + FieldElement{25967493, -14356035, 29566456, 3660896, -12694345, 4014787, 27544626, -11754271, -6079156, 2047605}, + FieldElement{-12545711, 934262, -2722910, 3049990, -727428, 9406986, 12720692, 5043384, 19500929, -15469378}, + FieldElement{-8738181, 4489570, 9688441, -14785194, 10184609, -12363380, 29287919, 11864899, -24514362, -4438546}, + }, + { + FieldElement{-12815894, -12976347, -21581243, 11784320, -25355658, -2750717, -11717903, -3814571, -358445, -10211303}, + FieldElement{-21703237, 6903825, 27185491, 6451973, -29577724, -9554005, -15616551, 11189268, -26829678, -5319081}, + FieldElement{26966642, 11152617, 32442495, 15396054, 14353839, -12752335, -3128826, -9541118, -15472047, -4166697}, + }, + { + FieldElement{15636291, -9688557, 24204773, -7912398, 616977, -16685262, 27787600, -14772189, 28944400, -1550024}, + FieldElement{16568933, 4717097, -11556148, -1102322, 15682896, -11807043, 16354577, -11775962, 7689662, 11199574}, + FieldElement{30464156, -5976125, -11779434, -15670865, 23220365, 15915852, 7512774, 10017326, -17749093, -9920357}, + }, + { + FieldElement{-17036878, 13921892, 10945806, -6033431, 27105052, -16084379, -28926210, 15006023, 3284568, -6276540}, + FieldElement{23599295, -8306047, -11193664, -7687416, 13236774, 10506355, 7464579, 9656445, 13059162, 10374397}, + FieldElement{7798556, 16710257, 3033922, 2874086, 28997861, 2835604, 32406664, -3839045, -641708, -101325}, + }, + { + FieldElement{10861363, 11473154, 27284546, 1981175, -30064349, 12577861, 32867885, 14515107, -15438304, 10819380}, + FieldElement{4708026, 6336745, 20377586, 9066809, -11272109, 6594696, -25653668, 12483688, -12668491, 5581306}, + FieldElement{19563160, 16186464, -29386857, 4097519, 10237984, -4348115, 28542350, 13850243, -23678021, -15815942}, + }, + { + FieldElement{-15371964, -12862754, 32573250, 4720197, -26436522, 5875511, -19188627, -15224819, -9818940, -12085777}, + FieldElement{-8549212, 109983, 15149363, 2178705, 22900618, 4543417, 3044240, -15689887, 1762328, 14866737}, + FieldElement{-18199695, -15951423, -10473290, 1707278, -17185920, 3916101, -28236412, 3959421, 27914454, 4383652}, + }, + { + FieldElement{5153746, 9909285, 1723747, -2777874, 30523605, 5516873, 19480852, 5230134, -23952439, -15175766}, + FieldElement{-30269007, -3463509, 7665486, 10083793, 28475525, 1649722, 20654025, 16520125, 30598449, 7715701}, + FieldElement{28881845, 14381568, 9657904, 3680757, -20181635, 7843316, -31400660, 1370708, 29794553, -1409300}, + }, + { + FieldElement{14499471, -2729599, -33191113, -4254652, 28494862, 14271267, 30290735, 10876454, -33154098, 2381726}, + FieldElement{-7195431, -2655363, -14730155, 462251, -27724326, 3941372, -6236617, 3696005, -32300832, 15351955}, + FieldElement{27431194, 8222322, 16448760, -3907995, -18707002, 11938355, -32961401, -2970515, 29551813, 10109425}, + }, + }, + { + { + FieldElement{-13657040, -13155431, -31283750, 11777098, 21447386, 6519384, -2378284, -1627556, 10092783, -4764171}, + FieldElement{27939166, 14210322, 4677035, 16277044, -22964462, -12398139, -32508754, 12005538, -17810127, 12803510}, + FieldElement{17228999, -15661624, -1233527, 300140, -1224870, -11714777, 30364213, -9038194, 18016357, 4397660}, + }, + { + FieldElement{-10958843, -7690207, 4776341, -14954238, 27850028, -15602212, -26619106, 14544525, -17477504, 982639}, + FieldElement{29253598, 15796703, -2863982, -9908884, 10057023, 3163536, 7332899, -4120128, -21047696, 9934963}, + FieldElement{5793303, 16271923, -24131614, -10116404, 29188560, 1206517, -14747930, 4559895, -30123922, -10897950}, + }, + { + FieldElement{-27643952, -11493006, 16282657, -11036493, 28414021, -15012264, 24191034, 4541697, -13338309, 5500568}, + FieldElement{12650548, -1497113, 9052871, 11355358, -17680037, -8400164, -17430592, 12264343, 10874051, 13524335}, + FieldElement{25556948, -3045990, 714651, 2510400, 23394682, -10415330, 33119038, 5080568, -22528059, 5376628}, + }, + { + FieldElement{-26088264, -4011052, -17013699, -3537628, -6726793, 1920897, -22321305, -9447443, 4535768, 1569007}, + FieldElement{-2255422, 14606630, -21692440, -8039818, 28430649, 8775819, -30494562, 3044290, 31848280, 12543772}, + FieldElement{-22028579, 2943893, -31857513, 6777306, 13784462, -4292203, -27377195, -2062731, 7718482, 14474653}, + }, + { + FieldElement{2385315, 2454213, -22631320, 46603, -4437935, -15680415, 656965, -7236665, 24316168, -5253567}, + FieldElement{13741529, 10911568, -33233417, -8603737, -20177830, -1033297, 33040651, -13424532, -20729456, 8321686}, + FieldElement{21060490, -2212744, 15712757, -4336099, 1639040, 10656336, 23845965, -11874838, -9984458, 608372}, + }, + { + FieldElement{-13672732, -15087586, -10889693, -7557059, -6036909, 11305547, 1123968, -6780577, 27229399, 23887}, + FieldElement{-23244140, -294205, -11744728, 14712571, -29465699, -2029617, 12797024, -6440308, -1633405, 16678954}, + FieldElement{-29500620, 4770662, -16054387, 14001338, 7830047, 9564805, -1508144, -4795045, -17169265, 4904953}, + }, + { + FieldElement{24059557, 14617003, 19037157, -15039908, 19766093, -14906429, 5169211, 16191880, 2128236, -4326833}, + FieldElement{-16981152, 4124966, -8540610, -10653797, 30336522, -14105247, -29806336, 916033, -6882542, -2986532}, + FieldElement{-22630907, 12419372, -7134229, -7473371, -16478904, 16739175, 285431, 2763829, 15736322, 4143876}, + }, + { + FieldElement{2379352, 11839345, -4110402, -5988665, 11274298, 794957, 212801, -14594663, 23527084, -16458268}, + FieldElement{33431127, -11130478, -17838966, -15626900, 8909499, 8376530, -32625340, 4087881, -15188911, -14416214}, + FieldElement{1767683, 7197987, -13205226, -2022635, -13091350, 448826, 5799055, 4357868, -4774191, -16323038}, + }, + }, + { + { + FieldElement{6721966, 13833823, -23523388, -1551314, 26354293, -11863321, 23365147, -3949732, 7390890, 2759800}, + FieldElement{4409041, 2052381, 23373853, 10530217, 7676779, -12885954, 21302353, -4264057, 1244380, -12919645}, + FieldElement{-4421239, 7169619, 4982368, -2957590, 30256825, -2777540, 14086413, 9208236, 15886429, 16489664}, + }, + { + FieldElement{1996075, 10375649, 14346367, 13311202, -6874135, -16438411, -13693198, 398369, -30606455, -712933}, + FieldElement{-25307465, 9795880, -2777414, 14878809, -33531835, 14780363, 13348553, 12076947, -30836462, 5113182}, + FieldElement{-17770784, 11797796, 31950843, 13929123, -25888302, 12288344, -30341101, -7336386, 13847711, 5387222}, + }, + { + FieldElement{-18582163, -3416217, 17824843, -2340966, 22744343, -10442611, 8763061, 3617786, -19600662, 10370991}, + FieldElement{20246567, -14369378, 22358229, -543712, 18507283, -10413996, 14554437, -8746092, 32232924, 16763880}, + FieldElement{9648505, 10094563, 26416693, 14745928, -30374318, -6472621, 11094161, 15689506, 3140038, -16510092}, + }, + { + FieldElement{-16160072, 5472695, 31895588, 4744994, 8823515, 10365685, -27224800, 9448613, -28774454, 366295}, + FieldElement{19153450, 11523972, -11096490, -6503142, -24647631, 5420647, 28344573, 8041113, 719605, 11671788}, + FieldElement{8678025, 2694440, -6808014, 2517372, 4964326, 11152271, -15432916, -15266516, 27000813, -10195553}, + }, + { + FieldElement{-15157904, 7134312, 8639287, -2814877, -7235688, 10421742, 564065, 5336097, 6750977, -14521026}, + FieldElement{11836410, -3979488, 26297894, 16080799, 23455045, 15735944, 1695823, -8819122, 8169720, 16220347}, + FieldElement{-18115838, 8653647, 17578566, -6092619, -8025777, -16012763, -11144307, -2627664, -5990708, -14166033}, + }, + { + FieldElement{-23308498, -10968312, 15213228, -10081214, -30853605, -11050004, 27884329, 2847284, 2655861, 1738395}, + FieldElement{-27537433, -14253021, -25336301, -8002780, -9370762, 8129821, 21651608, -3239336, -19087449, -11005278}, + FieldElement{1533110, 3437855, 23735889, 459276, 29970501, 11335377, 26030092, 5821408, 10478196, 8544890}, + }, + { + FieldElement{32173121, -16129311, 24896207, 3921497, 22579056, -3410854, 19270449, 12217473, 17789017, -3395995}, + FieldElement{-30552961, -2228401, -15578829, -10147201, 13243889, 517024, 15479401, -3853233, 30460520, 1052596}, + FieldElement{-11614875, 13323618, 32618793, 8175907, -15230173, 12596687, 27491595, -4612359, 3179268, -9478891}, + }, + { + FieldElement{31947069, -14366651, -4640583, -15339921, -15125977, -6039709, -14756777, -16411740, 19072640, -9511060}, + FieldElement{11685058, 11822410, 3158003, -13952594, 33402194, -4165066, 5977896, -5215017, 473099, 5040608}, + FieldElement{-20290863, 8198642, -27410132, 11602123, 1290375, -2799760, 28326862, 1721092, -19558642, -3131606}, + }, + }, + { + { + FieldElement{7881532, 10687937, 7578723, 7738378, -18951012, -2553952, 21820786, 8076149, -27868496, 11538389}, + FieldElement{-19935666, 3899861, 18283497, -6801568, -15728660, -11249211, 8754525, 7446702, -5676054, 5797016}, + FieldElement{-11295600, -3793569, -15782110, -7964573, 12708869, -8456199, 2014099, -9050574, -2369172, -5877341}, + }, + { + FieldElement{-22472376, -11568741, -27682020, 1146375, 18956691, 16640559, 1192730, -3714199, 15123619, 10811505}, + FieldElement{14352098, -3419715, -18942044, 10822655, 32750596, 4699007, -70363, 15776356, -28886779, -11974553}, + FieldElement{-28241164, -8072475, -4978962, -5315317, 29416931, 1847569, -20654173, -16484855, 4714547, -9600655}, + }, + { + FieldElement{15200332, 8368572, 19679101, 15970074, -31872674, 1959451, 24611599, -4543832, -11745876, 12340220}, + FieldElement{12876937, -10480056, 33134381, 6590940, -6307776, 14872440, 9613953, 8241152, 15370987, 9608631}, + FieldElement{-4143277, -12014408, 8446281, -391603, 4407738, 13629032, -7724868, 15866074, -28210621, -8814099}, + }, + { + FieldElement{26660628, -15677655, 8393734, 358047, -7401291, 992988, -23904233, 858697, 20571223, 8420556}, + FieldElement{14620715, 13067227, -15447274, 8264467, 14106269, 15080814, 33531827, 12516406, -21574435, -12476749}, + FieldElement{236881, 10476226, 57258, -14677024, 6472998, 2466984, 17258519, 7256740, 8791136, 15069930}, + }, + { + FieldElement{1276410, -9371918, 22949635, -16322807, -23493039, -5702186, 14711875, 4874229, -30663140, -2331391}, + FieldElement{5855666, 4990204, -13711848, 7294284, -7804282, 1924647, -1423175, -7912378, -33069337, 9234253}, + FieldElement{20590503, -9018988, 31529744, -7352666, -2706834, 10650548, 31559055, -11609587, 18979186, 13396066}, + }, + { + FieldElement{24474287, 4968103, 22267082, 4407354, 24063882, -8325180, -18816887, 13594782, 33514650, 7021958}, + FieldElement{-11566906, -6565505, -21365085, 15928892, -26158305, 4315421, -25948728, -3916677, -21480480, 12868082}, + FieldElement{-28635013, 13504661, 19988037, -2132761, 21078225, 6443208, -21446107, 2244500, -12455797, -8089383}, + }, + { + FieldElement{-30595528, 13793479, -5852820, 319136, -25723172, -6263899, 33086546, 8957937, -15233648, 5540521}, + FieldElement{-11630176, -11503902, -8119500, -7643073, 2620056, 1022908, -23710744, -1568984, -16128528, -14962807}, + FieldElement{23152971, 775386, 27395463, 14006635, -9701118, 4649512, 1689819, 892185, -11513277, -15205948}, + }, + { + FieldElement{9770129, 9586738, 26496094, 4324120, 1556511, -3550024, 27453819, 4763127, -19179614, 5867134}, + FieldElement{-32765025, 1927590, 31726409, -4753295, 23962434, -16019500, 27846559, 5931263, -29749703, -16108455}, + FieldElement{27461885, -2977536, 22380810, 1815854, -23033753, -3031938, 7283490, -15148073, -19526700, 7734629}, + }, + }, + { + { + FieldElement{-8010264, -9590817, -11120403, 6196038, 29344158, -13430885, 7585295, -3176626, 18549497, 15302069}, + FieldElement{-32658337, -6171222, -7672793, -11051681, 6258878, 13504381, 10458790, -6418461, -8872242, 8424746}, + FieldElement{24687205, 8613276, -30667046, -3233545, 1863892, -1830544, 19206234, 7134917, -11284482, -828919}, + }, + { + FieldElement{11334899, -9218022, 8025293, 12707519, 17523892, -10476071, 10243738, -14685461, -5066034, 16498837}, + FieldElement{8911542, 6887158, -9584260, -6958590, 11145641, -9543680, 17303925, -14124238, 6536641, 10543906}, + FieldElement{-28946384, 15479763, -17466835, 568876, -1497683, 11223454, -2669190, -16625574, -27235709, 8876771}, + }, + { + FieldElement{-25742899, -12566864, -15649966, -846607, -33026686, -796288, -33481822, 15824474, -604426, -9039817}, + FieldElement{10330056, 70051, 7957388, -9002667, 9764902, 15609756, 27698697, -4890037, 1657394, 3084098}, + FieldElement{10477963, -7470260, 12119566, -13250805, 29016247, -5365589, 31280319, 14396151, -30233575, 15272409}, + }, + { + FieldElement{-12288309, 3169463, 28813183, 16658753, 25116432, -5630466, -25173957, -12636138, -25014757, 1950504}, + FieldElement{-26180358, 9489187, 11053416, -14746161, -31053720, 5825630, -8384306, -8767532, 15341279, 8373727}, + FieldElement{28685821, 7759505, -14378516, -12002860, -31971820, 4079242, 298136, -10232602, 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8561328, -20155687, -11632979, -14754271, -10812892}, + }, + { + FieldElement{15961858, 14150409, 26716931, -665832, -22794328, 13603569, 11829573, 7467844, -28822128, 929275}, + FieldElement{11038231, -11582396, -27310482, -7316562, -10498527, -16307831, -23479533, -9371869, -21393143, 2465074}, + FieldElement{20017163, -4323226, 27915242, 1529148, 12396362, 15675764, 13817261, -9658066, 2463391, -4622140}, + }, + { + FieldElement{-16358878, -12663911, -12065183, 4996454, -1256422, 1073572, 9583558, 12851107, 4003896, 12673717}, + FieldElement{-1731589, -15155870, -3262930, 16143082, 19294135, 13385325, 14741514, -9103726, 7903886, 2348101}, + FieldElement{24536016, -16515207, 12715592, -3862155, 1511293, 10047386, -3842346, -7129159, -28377538, 10048127}, + }, + }, + { + { + FieldElement{-12622226, -6204820, 30718825, 2591312, -10617028, 12192840, 18873298, -7297090, -32297756, 15221632}, + FieldElement{-26478122, -11103864, 11546244, -1852483, 9180880, 7656409, -21343950, 2095755, 29769758, 6593415}, + FieldElement{-31994208, -2907461, 4176912, 3264766, 12538965, -868111, 26312345, -6118678, 30958054, 8292160}, + }, + { + FieldElement{31429822, -13959116, 29173532, 15632448, 12174511, -2760094, 32808831, 3977186, 26143136, -3148876}, + FieldElement{22648901, 1402143, -22799984, 13746059, 7936347, 365344, -8668633, -1674433, -3758243, -2304625}, + FieldElement{-15491917, 8012313, -2514730, -12702462, -23965846, -10254029, -1612713, -1535569, -16664475, 8194478}, + }, + { + FieldElement{27338066, -7507420, -7414224, 10140405, -19026427, -6589889, 27277191, 8855376, 28572286, 3005164}, + FieldElement{26287124, 4821776, 25476601, -4145903, -3764513, -15788984, -18008582, 1182479, -26094821, -13079595}, + FieldElement{-7171154, 3178080, 23970071, 6201893, -17195577, -4489192, -21876275, -13982627, 32208683, -1198248}, + }, + { + FieldElement{-16657702, 2817643, -10286362, 14811298, 6024667, 13349505, -27315504, -10497842, -27672585, -11539858}, + FieldElement{15941029, -9405932, -21367050, 8062055, 31876073, -238629, -15278393, -1444429, 15397331, -4130193}, + FieldElement{8934485, -13485467, -23286397, -13423241, -32446090, 14047986, 31170398, -1441021, -27505566, 15087184}, + }, + { + FieldElement{-18357243, -2156491, 24524913, -16677868, 15520427, -6360776, -15502406, 11461896, 16788528, -5868942}, + FieldElement{-1947386, 16013773, 21750665, 3714552, -17401782, -16055433, -3770287, -10323320, 31322514, -11615635}, + FieldElement{21426655, -5650218, -13648287, -5347537, -28812189, -4920970, -18275391, -14621414, 13040862, -12112948}, + }, + { + FieldElement{11293895, 12478086, -27136401, 15083750, -29307421, 14748872, 14555558, -13417103, 1613711, 4896935}, + FieldElement{-25894883, 15323294, -8489791, -8057900, 25967126, -13425460, 2825960, -4897045, -23971776, -11267415}, + FieldElement{-15924766, -5229880, -17443532, 6410664, 3622847, 10243618, 20615400, 12405433, -23753030, -8436416}, + }, + { + FieldElement{-7091295, 12556208, -20191352, 9025187, -17072479, 4333801, 4378436, 2432030, 23097949, -566018}, + FieldElement{4565804, -16025654, 20084412, -7842817, 1724999, 189254, 24767264, 10103221, -18512313, 2424778}, + FieldElement{366633, -11976806, 8173090, -6890119, 30788634, 5745705, -7168678, 1344109, -3642553, 12412659}, + }, + { + FieldElement{-24001791, 7690286, 14929416, -168257, -32210835, -13412986, 24162697, -15326504, -3141501, 11179385}, + FieldElement{18289522, -14724954, 8056945, 16430056, -21729724, 7842514, -6001441, -1486897, -18684645, -11443503}, + FieldElement{476239, 6601091, -6152790, -9723375, 17503545, -4863900, 27672959, 13403813, 11052904, 5219329}, + }, + }, + { + { + FieldElement{20678546, -8375738, -32671898, 8849123, -5009758, 14574752, 31186971, -3973730, 9014762, -8579056}, + FieldElement{-13644050, -10350239, -15962508, 5075808, -1514661, -11534600, -33102500, 9160280, 8473550, -3256838}, + FieldElement{24900749, 14435722, 17209120, -15292541, -22592275, 9878983, -7689309, -16335821, -24568481, 11788948}, + }, + { + FieldElement{-3118155, -11395194, -13802089, 14797441, 9652448, -6845904, -20037437, 10410733, -24568470, -1458691}, + FieldElement{-15659161, 16736706, -22467150, 10215878, -9097177, 7563911, 11871841, -12505194, -18513325, 8464118}, + FieldElement{-23400612, 8348507, -14585951, -861714, -3950205, -6373419, 14325289, 8628612, 33313881, -8370517}, + }, + { + FieldElement{-20186973, -4967935, 22367356, 5271547, -1097117, -4788838, -24805667, -10236854, -8940735, -5818269}, + FieldElement{-6948785, -1795212, -32625683, -16021179, 32635414, -7374245, 15989197, -12838188, 28358192, -4253904}, + FieldElement{-23561781, -2799059, -32351682, -1661963, -9147719, 10429267, -16637684, 4072016, -5351664, 5596589}, + }, + { + FieldElement{-28236598, -3390048, 12312896, 6213178, 3117142, 16078565, 29266239, 2557221, 1768301, 15373193}, + FieldElement{-7243358, -3246960, -4593467, -7553353, -127927, -912245, -1090902, -4504991, -24660491, 3442910}, + FieldElement{-30210571, 5124043, 14181784, 8197961, 18964734, -11939093, 22597931, 7176455, -18585478, 13365930}, + }, + { + FieldElement{-7877390, -1499958, 8324673, 4690079, 6261860, 890446, 24538107, -8570186, -9689599, -3031667}, + FieldElement{25008904, -10771599, -4305031, -9638010, 16265036, 15721635, 683793, -11823784, 15723479, -15163481}, + FieldElement{-9660625, 12374379, -27006999, -7026148, -7724114, -12314514, 11879682, 5400171, 519526, -1235876}, + }, + { + FieldElement{22258397, -16332233, -7869817, 14613016, -22520255, -2950923, -20353881, 7315967, 16648397, 7605640}, + FieldElement{-8081308, -8464597, -8223311, 9719710, 19259459, -15348212, 23994942, -5281555, -9468848, 4763278}, + FieldElement{-21699244, 9220969, -15730624, 1084137, -25476107, -2852390, 31088447, -7764523, -11356529, 728112}, + }, + { + FieldElement{26047220, -11751471, -6900323, -16521798, 24092068, 9158119, -4273545, -12555558, -29365436, -5498272}, + FieldElement{17510331, -322857, 5854289, 8403524, 17133918, -3112612, -28111007, 12327945, 10750447, 10014012}, + FieldElement{-10312768, 3936952, 9156313, -8897683, 16498692, -994647, -27481051, -666732, 3424691, 7540221}, + }, + { + FieldElement{30322361, -6964110, 11361005, -4143317, 7433304, 4989748, -7071422, -16317219, -9244265, 15258046}, + FieldElement{13054562, -2779497, 19155474, 469045, -12482797, 4566042, 5631406, 2711395, 1062915, -5136345}, + FieldElement{-19240248, -11254599, -29509029, -7499965, -5835763, 13005411, -6066489, 12194497, 32960380, 1459310}, + }, + }, + { + { + FieldElement{19852034, 7027924, 23669353, 10020366, 8586503, -6657907, 394197, -6101885, 18638003, -11174937}, + FieldElement{31395534, 15098109, 26581030, 8030562, -16527914, -5007134, 9012486, -7584354, -6643087, -5442636}, + FieldElement{-9192165, -2347377, -1997099, 4529534, 25766844, 607986, -13222, 9677543, -32294889, -6456008}, + }, + { + FieldElement{-2444496, -149937, 29348902, 8186665, 1873760, 12489863, -30934579, -7839692, -7852844, -8138429}, + FieldElement{-15236356, -15433509, 7766470, 746860, 26346930, -10221762, -27333451, 10754588, -9431476, 5203576}, + FieldElement{31834314, 14135496, -770007, 5159118, 20917671, -16768096, -7467973, -7337524, 31809243, 7347066}, + }, + { + FieldElement{-9606723, -11874240, 20414459, 13033986, 13716524, -11691881, 19797970, -12211255, 15192876, -2087490}, + FieldElement{-12663563, -2181719, 1168162, -3804809, 26747877, -14138091, 10609330, 12694420, 33473243, -13382104}, + FieldElement{33184999, 11180355, 15832085, -11385430, -1633671, 225884, 15089336, -11023903, -6135662, 14480053}, + }, + { + FieldElement{31308717, -5619998, 31030840, -1897099, 15674547, -6582883, 5496208, 13685227, 27595050, 8737275}, + FieldElement{-20318852, -15150239, 10933843, -16178022, 8335352, -7546022, -31008351, -12610604, 26498114, 66511}, + FieldElement{22644454, -8761729, -16671776, 4884562, -3105614, -13559366, 30540766, -4286747, -13327787, -7515095}, + }, + { + FieldElement{-28017847, 9834845, 18617207, -2681312, -3401956, -13307506, 8205540, 13585437, -17127465, 15115439}, + FieldElement{23711543, -672915, 31206561, -8362711, 6164647, -9709987, -33535882, -1426096, 8236921, 16492939}, + FieldElement{-23910559, -13515526, -26299483, -4503841, 25005590, -7687270, 19574902, 10071562, 6708380, -6222424}, + }, + { + FieldElement{2101391, -4930054, 19702731, 2367575, -15427167, 1047675, 5301017, 9328700, 29955601, -11678310}, + FieldElement{3096359, 9271816, -21620864, -15521844, -14847996, -7592937, -25892142, -12635595, -9917575, 6216608}, + FieldElement{-32615849, 338663, -25195611, 2510422, -29213566, -13820213, 24822830, -6146567, -26767480, 7525079}, + }, + { + FieldElement{-23066649, -13985623, 16133487, -7896178, -3389565, 778788, -910336, -2782495, -19386633, 11994101}, + FieldElement{21691500, -13624626, -641331, -14367021, 3285881, -3483596, -25064666, 9718258, -7477437, 13381418}, + FieldElement{18445390, -4202236, 14979846, 11622458, -1727110, -3582980, 23111648, -6375247, 28535282, 15779576}, + }, + { + FieldElement{30098053, 3089662, -9234387, 16662135, -21306940, 11308411, -14068454, 12021730, 9955285, -16303356}, + FieldElement{9734894, -14576830, -7473633, -9138735, 2060392, 11313496, -18426029, 9924399, 20194861, 13380996}, + FieldElement{-26378102, -7965207, -22167821, 15789297, -18055342, -6168792, -1984914, 15707771, 26342023, 10146099}, + }, + }, + { + { + FieldElement{-26016874, -219943, 21339191, -41388, 19745256, -2878700, -29637280, 2227040, 21612326, -545728}, + FieldElement{-13077387, 1184228, 23562814, -5970442, -20351244, -6348714, 25764461, 12243797, -20856566, 11649658}, + FieldElement{-10031494, 11262626, 27384172, 2271902, 26947504, -15997771, 39944, 6114064, 33514190, 2333242}, + }, + { + FieldElement{-21433588, -12421821, 8119782, 7219913, -21830522, -9016134, -6679750, -12670638, 24350578, -13450001}, + FieldElement{-4116307, -11271533, -23886186, 4843615, -30088339, 690623, -31536088, -10406836, 8317860, 12352766}, + FieldElement{18200138, -14475911, -33087759, -2696619, -23702521, -9102511, -23552096, -2287550, 20712163, 6719373}, + }, + { + FieldElement{26656208, 6075253, -7858556, 1886072, -28344043, 4262326, 11117530, -3763210, 26224235, -3297458}, + FieldElement{-17168938, -14854097, -3395676, -16369877, -19954045, 14050420, 21728352, 9493610, 18620611, -16428628}, + FieldElement{-13323321, 13325349, 11432106, 5964811, 18609221, 6062965, -5269471, -9725556, -30701573, -16479657}, + }, + { + FieldElement{-23860538, -11233159, 26961357, 1640861, -32413112, -16737940, 12248509, -5240639, 13735342, 1934062}, + FieldElement{25089769, 6742589, 17081145, -13406266, 21909293, -16067981, -15136294, -3765346, -21277997, 5473616}, + FieldElement{31883677, -7961101, 1083432, -11572403, 22828471, 13290673, -7125085, 12469656, 29111212, -5451014}, + }, + { + FieldElement{24244947, -15050407, -26262976, 2791540, -14997599, 16666678, 24367466, 6388839, -10295587, 452383}, + FieldElement{-25640782, -3417841, 5217916, 16224624, 19987036, -4082269, -24236251, -5915248, 15766062, 8407814}, + FieldElement{-20406999, 13990231, 15495425, 16395525, 5377168, 15166495, -8917023, -4388953, -8067909, 2276718}, + }, + { + FieldElement{30157918, 12924066, -17712050, 9245753, 19895028, 3368142, -23827587, 5096219, 22740376, -7303417}, + FieldElement{2041139, -14256350, 7783687, 13876377, -25946985, -13352459, 24051124, 13742383, -15637599, 13295222}, + FieldElement{33338237, -8505733, 12532113, 7977527, 9106186, -1715251, -17720195, -4612972, -4451357, -14669444}, + }, + { + FieldElement{-20045281, 5454097, -14346548, 6447146, 28862071, 1883651, -2469266, -4141880, 7770569, 9620597}, + FieldElement{23208068, 7979712, 33071466, 8149229, 1758231, -10834995, 30945528, -1694323, -33502340, -14767970}, + FieldElement{1439958, -16270480, -1079989, -793782, 4625402, 10647766, -5043801, 1220118, 30494170, -11440799}, + }, + { + FieldElement{-5037580, -13028295, -2970559, -3061767, 15640974, -6701666, -26739026, 926050, -1684339, -13333647}, + FieldElement{13908495, -3549272, 30919928, -6273825, -21521863, 7989039, 9021034, 9078865, 3353509, 4033511}, + FieldElement{-29663431, -15113610, 32259991, -344482, 24295849, -12912123, 23161163, 8839127, 27485041, 7356032}, + }, + }, + { + { + FieldElement{9661027, 705443, 11980065, -5370154, -1628543, 14661173, -6346142, 2625015, 28431036, -16771834}, + FieldElement{-23839233, -8311415, -25945511, 7480958, -17681669, -8354183, -22545972, 14150565, 15970762, 4099461}, + FieldElement{29262576, 16756590, 26350592, -8793563, 8529671, -11208050, 13617293, -9937143, 11465739, 8317062}, + }, + { + FieldElement{-25493081, -6962928, 32500200, -9419051, -23038724, -2302222, 14898637, 3848455, 20969334, -5157516}, + FieldElement{-20384450, -14347713, -18336405, 13884722, -33039454, 2842114, -21610826, -3649888, 11177095, 14989547}, + FieldElement{-24496721, -11716016, 16959896, 2278463, 12066309, 10137771, 13515641, 2581286, -28487508, 9930240}, + }, + { + FieldElement{-17751622, -2097826, 16544300, -13009300, -15914807, -14949081, 18345767, -13403753, 16291481, -5314038}, + FieldElement{-33229194, 2553288, 32678213, 9875984, 8534129, 6889387, -9676774, 6957617, 4368891, 9788741}, + FieldElement{16660756, 7281060, -10830758, 12911820, 20108584, -8101676, -21722536, -8613148, 16250552, -11111103}, + }, + { + FieldElement{-19765507, 2390526, -16551031, 14161980, 1905286, 6414907, 4689584, 10604807, -30190403, 4782747}, + FieldElement{-1354539, 14736941, -7367442, -13292886, 7710542, -14155590, -9981571, 4383045, 22546403, 437323}, + FieldElement{31665577, -12180464, -16186830, 1491339, -18368625, 3294682, 27343084, 2786261, -30633590, -14097016}, + }, + { + FieldElement{-14467279, -683715, -33374107, 7448552, 19294360, 14334329, -19690631, 2355319, -19284671, -6114373}, + FieldElement{15121312, -15796162, 6377020, -6031361, -10798111, -12957845, 18952177, 15496498, -29380133, 11754228}, + FieldElement{-2637277, -13483075, 8488727, -14303896, 12728761, -1622493, 7141596, 11724556, 22761615, -10134141}, + }, + { + FieldElement{16918416, 11729663, -18083579, 3022987, -31015732, -13339659, -28741185, -12227393, 32851222, 11717399}, + FieldElement{11166634, 7338049, -6722523, 4531520, -29468672, -7302055, 31474879, 3483633, -1193175, -4030831}, + FieldElement{-185635, 9921305, 31456609, -13536438, -12013818, 13348923, 33142652, 6546660, -19985279, -3948376}, + }, + { + FieldElement{-32460596, 11266712, -11197107, -7899103, 31703694, 3855903, -8537131, -12833048, -30772034, -15486313}, + FieldElement{-18006477, 12709068, 3991746, -6479188, -21491523, -10550425, -31135347, -16049879, 10928917, 3011958}, + FieldElement{-6957757, -15594337, 31696059, 334240, 29576716, 14796075, -30831056, -12805180, 18008031, 10258577}, + }, + { + FieldElement{-22448644, 15655569, 7018479, -4410003, -30314266, -1201591, -1853465, 1367120, 25127874, 6671743}, + FieldElement{29701166, -14373934, -10878120, 9279288, -17568, 13127210, 21382910, 11042292, 25838796, 4642684}, + FieldElement{-20430234, 14955537, -24126347, 8124619, -5369288, -5990470, 30468147, -13900640, 18423289, 4177476}, + }, + }, +} diff --git a/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/edwards25519.go b/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/edwards25519.go new file mode 100644 index 0000000..5f8b994 --- /dev/null +++ b/vendor/golang.org/x/crypto/ed25519/internal/edwards25519/edwards25519.go @@ -0,0 +1,1771 @@ +// Copyright 2016 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package edwards25519 + +// This code is a port of the public domain, “ref10” implementation of ed25519 +// from SUPERCOP. + +// FieldElement represents an element of the field GF(2^255 - 19). An element +// t, entries t[0]...t[9], represents the integer t[0]+2^26 t[1]+2^51 t[2]+2^77 +// t[3]+2^102 t[4]+...+2^230 t[9]. Bounds on each t[i] vary depending on +// context. +type FieldElement [10]int32 + +var zero FieldElement + +func FeZero(fe *FieldElement) { + copy(fe[:], zero[:]) +} + +func FeOne(fe *FieldElement) { + FeZero(fe) + fe[0] = 1 +} + +func FeAdd(dst, a, b *FieldElement) { + dst[0] = a[0] + b[0] + dst[1] = a[1] + b[1] + dst[2] = a[2] + b[2] + dst[3] = a[3] + b[3] + dst[4] = a[4] + b[4] + dst[5] = a[5] + b[5] + dst[6] = a[6] + b[6] + dst[7] = a[7] + b[7] + dst[8] = a[8] + b[8] + dst[9] = a[9] + b[9] +} + +func FeSub(dst, a, b *FieldElement) { + dst[0] = a[0] - b[0] + dst[1] = a[1] - b[1] + dst[2] = a[2] - b[2] + dst[3] = a[3] - b[3] + dst[4] = a[4] - b[4] + dst[5] = a[5] - b[5] + dst[6] = a[6] - b[6] + dst[7] = a[7] - b[7] + dst[8] = a[8] - b[8] + dst[9] = a[9] - b[9] +} + +func FeCopy(dst, src *FieldElement) { + copy(dst[:], src[:]) +} + +// Replace (f,g) with (g,g) if b == 1; +// replace (f,g) with (f,g) if b == 0. +// +// Preconditions: b in {0,1}. +func FeCMove(f, g *FieldElement, b int32) { + b = -b + f[0] ^= b & (f[0] ^ g[0]) + f[1] ^= b & (f[1] ^ g[1]) + f[2] ^= b & (f[2] ^ g[2]) + f[3] ^= b & (f[3] ^ g[3]) + f[4] ^= b & (f[4] ^ g[4]) + f[5] ^= b & (f[5] ^ g[5]) + f[6] ^= b & (f[6] ^ g[6]) + f[7] ^= b & (f[7] ^ g[7]) + f[8] ^= b & (f[8] ^ g[8]) + f[9] ^= b & (f[9] ^ g[9]) +} + +func load3(in []byte) int64 { + var r int64 + r = int64(in[0]) + r |= int64(in[1]) << 8 + r |= int64(in[2]) << 16 + return r +} + +func load4(in []byte) int64 { + var r int64 + r = int64(in[0]) + r |= int64(in[1]) << 8 + r |= int64(in[2]) << 16 + r |= int64(in[3]) << 24 + return r +} + +func FeFromBytes(dst *FieldElement, src *[32]byte) { + h0 := load4(src[:]) + h1 := load3(src[4:]) << 6 + h2 := load3(src[7:]) << 5 + h3 := load3(src[10:]) << 3 + h4 := load3(src[13:]) << 2 + h5 := load4(src[16:]) + h6 := load3(src[20:]) << 7 + h7 := load3(src[23:]) << 5 + h8 := load3(src[26:]) << 4 + h9 := (load3(src[29:]) & 8388607) << 2 + + FeCombine(dst, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9) +} + +// FeToBytes marshals h to s. +// Preconditions: +// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. +// +// Write p=2^255-19; q=floor(h/p). +// Basic claim: q = floor(2^(-255)(h + 19 2^(-25)h9 + 2^(-1))). +// +// Proof: +// Have |h|<=p so |q|<=1 so |19^2 2^(-255) q|<1/4. +// Also have |h-2^230 h9|<2^230 so |19 2^(-255)(h-2^230 h9)|<1/4. +// +// Write y=2^(-1)-19^2 2^(-255)q-19 2^(-255)(h-2^230 h9). +// Then 0> 25 + q = (h[0] + q) >> 26 + q = (h[1] + q) >> 25 + q = (h[2] + q) >> 26 + q = (h[3] + q) >> 25 + q = (h[4] + q) >> 26 + q = (h[5] + q) >> 25 + q = (h[6] + q) >> 26 + q = (h[7] + q) >> 25 + q = (h[8] + q) >> 26 + q = (h[9] + q) >> 25 + + // Goal: Output h-(2^255-19)q, which is between 0 and 2^255-20. + h[0] += 19 * q + // Goal: Output h-2^255 q, which is between 0 and 2^255-20. + + carry[0] = h[0] >> 26 + h[1] += carry[0] + h[0] -= carry[0] << 26 + carry[1] = h[1] >> 25 + h[2] += carry[1] + h[1] -= carry[1] << 25 + carry[2] = h[2] >> 26 + h[3] += carry[2] + h[2] -= carry[2] << 26 + carry[3] = h[3] >> 25 + h[4] += carry[3] + h[3] -= carry[3] << 25 + carry[4] = h[4] >> 26 + h[5] += carry[4] + h[4] -= carry[4] << 26 + carry[5] = h[5] >> 25 + h[6] += carry[5] + h[5] -= carry[5] << 25 + carry[6] = h[6] >> 26 + h[7] += carry[6] + h[6] -= carry[6] << 26 + carry[7] = h[7] >> 25 + h[8] += carry[7] + h[7] -= carry[7] << 25 + carry[8] = h[8] >> 26 + h[9] += carry[8] + h[8] -= carry[8] << 26 + carry[9] = h[9] >> 25 + h[9] -= carry[9] << 25 + // h10 = carry9 + + // Goal: Output h[0]+...+2^255 h10-2^255 q, which is between 0 and 2^255-20. + // Have h[0]+...+2^230 h[9] between 0 and 2^255-1; + // evidently 2^255 h10-2^255 q = 0. + // Goal: Output h[0]+...+2^230 h[9]. + + s[0] = byte(h[0] >> 0) + s[1] = byte(h[0] >> 8) + s[2] = byte(h[0] >> 16) + s[3] = byte((h[0] >> 24) | (h[1] << 2)) + s[4] = byte(h[1] >> 6) + s[5] = byte(h[1] >> 14) + s[6] = byte((h[1] >> 22) | (h[2] << 3)) + s[7] = byte(h[2] >> 5) + s[8] = byte(h[2] >> 13) + s[9] = byte((h[2] >> 21) | (h[3] << 5)) + s[10] = byte(h[3] >> 3) + s[11] = byte(h[3] >> 11) + s[12] = byte((h[3] >> 19) | (h[4] << 6)) + s[13] = byte(h[4] >> 2) + s[14] = byte(h[4] >> 10) + s[15] = byte(h[4] >> 18) + s[16] = byte(h[5] >> 0) + s[17] = byte(h[5] >> 8) + s[18] = byte(h[5] >> 16) + s[19] = byte((h[5] >> 24) | (h[6] << 1)) + s[20] = byte(h[6] >> 7) + s[21] = byte(h[6] >> 15) + s[22] = byte((h[6] >> 23) | (h[7] << 3)) + s[23] = byte(h[7] >> 5) + s[24] = byte(h[7] >> 13) + s[25] = byte((h[7] >> 21) | (h[8] << 4)) + s[26] = byte(h[8] >> 4) + s[27] = byte(h[8] >> 12) + s[28] = byte((h[8] >> 20) | (h[9] << 6)) + s[29] = byte(h[9] >> 2) + s[30] = byte(h[9] >> 10) + s[31] = byte(h[9] >> 18) +} + +func FeIsNegative(f *FieldElement) byte { + var s [32]byte + FeToBytes(&s, f) + return s[0] & 1 +} + +func FeIsNonZero(f *FieldElement) int32 { + var s [32]byte + FeToBytes(&s, f) + var x uint8 + for _, b := range s { + x |= b + } + x |= x >> 4 + x |= x >> 2 + x |= x >> 1 + return int32(x & 1) +} + +// FeNeg sets h = -f +// +// Preconditions: +// |f| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. +// +// Postconditions: +// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. +func FeNeg(h, f *FieldElement) { + h[0] = -f[0] + h[1] = -f[1] + h[2] = -f[2] + h[3] = -f[3] + h[4] = -f[4] + h[5] = -f[5] + h[6] = -f[6] + h[7] = -f[7] + h[8] = -f[8] + h[9] = -f[9] +} + +func FeCombine(h *FieldElement, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 int64) { + var c0, c1, c2, c3, c4, c5, c6, c7, c8, c9 int64 + + /* + |h0| <= (1.1*1.1*2^52*(1+19+19+19+19)+1.1*1.1*2^50*(38+38+38+38+38)) + i.e. |h0| <= 1.2*2^59; narrower ranges for h2, h4, h6, h8 + |h1| <= (1.1*1.1*2^51*(1+1+19+19+19+19+19+19+19+19)) + i.e. |h1| <= 1.5*2^58; narrower ranges for h3, h5, h7, h9 + */ + + c0 = (h0 + (1 << 25)) >> 26 + h1 += c0 + h0 -= c0 << 26 + c4 = (h4 + (1 << 25)) >> 26 + h5 += c4 + h4 -= c4 << 26 + /* |h0| <= 2^25 */ + /* |h4| <= 2^25 */ + /* |h1| <= 1.51*2^58 */ + /* |h5| <= 1.51*2^58 */ + + c1 = (h1 + (1 << 24)) >> 25 + h2 += c1 + h1 -= c1 << 25 + c5 = (h5 + (1 << 24)) >> 25 + h6 += c5 + h5 -= c5 << 25 + /* |h1| <= 2^24; from now on fits into int32 */ + /* |h5| <= 2^24; from now on fits into int32 */ + /* |h2| <= 1.21*2^59 */ + /* |h6| <= 1.21*2^59 */ + + c2 = (h2 + (1 << 25)) >> 26 + h3 += c2 + h2 -= c2 << 26 + c6 = (h6 + (1 << 25)) >> 26 + h7 += c6 + h6 -= c6 << 26 + /* |h2| <= 2^25; from now on fits into int32 unchanged */ + /* |h6| <= 2^25; from now on fits into int32 unchanged */ + /* |h3| <= 1.51*2^58 */ + /* |h7| <= 1.51*2^58 */ + + c3 = (h3 + (1 << 24)) >> 25 + h4 += c3 + h3 -= c3 << 25 + c7 = (h7 + (1 << 24)) >> 25 + h8 += c7 + h7 -= c7 << 25 + /* |h3| <= 2^24; from now on fits into int32 unchanged */ + /* |h7| <= 2^24; from now on fits into int32 unchanged */ + /* |h4| <= 1.52*2^33 */ + /* |h8| <= 1.52*2^33 */ + + c4 = (h4 + (1 << 25)) >> 26 + h5 += c4 + h4 -= c4 << 26 + c8 = (h8 + (1 << 25)) >> 26 + h9 += c8 + h8 -= c8 << 26 + /* |h4| <= 2^25; from now on fits into int32 unchanged */ + /* |h8| <= 2^25; from now on fits into int32 unchanged */ + /* |h5| <= 1.01*2^24 */ + /* |h9| <= 1.51*2^58 */ + + c9 = (h9 + (1 << 24)) >> 25 + h0 += c9 * 19 + h9 -= c9 << 25 + /* |h9| <= 2^24; from now on fits into int32 unchanged */ + /* |h0| <= 1.8*2^37 */ + + c0 = (h0 + (1 << 25)) >> 26 + h1 += c0 + h0 -= c0 << 26 + /* |h0| <= 2^25; from now on fits into int32 unchanged */ + /* |h1| <= 1.01*2^24 */ + + h[0] = int32(h0) + h[1] = int32(h1) + h[2] = int32(h2) + h[3] = int32(h3) + h[4] = int32(h4) + h[5] = int32(h5) + h[6] = int32(h6) + h[7] = int32(h7) + h[8] = int32(h8) + h[9] = int32(h9) +} + +// FeMul calculates h = f * g +// Can overlap h with f or g. +// +// Preconditions: +// |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. +// |g| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. +// +// Postconditions: +// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. +// +// Notes on implementation strategy: +// +// Using schoolbook multiplication. +// Karatsuba would save a little in some cost models. +// +// Most multiplications by 2 and 19 are 32-bit precomputations; +// cheaper than 64-bit postcomputations. +// +// There is one remaining multiplication by 19 in the carry chain; +// one *19 precomputation can be merged into this, +// but the resulting data flow is considerably less clean. +// +// There are 12 carries below. +// 10 of them are 2-way parallelizable and vectorizable. +// Can get away with 11 carries, but then data flow is much deeper. +// +// With tighter constraints on inputs, can squeeze carries into int32. +func FeMul(h, f, g *FieldElement) { + f0 := int64(f[0]) + f1 := int64(f[1]) + f2 := int64(f[2]) + f3 := int64(f[3]) + f4 := int64(f[4]) + f5 := int64(f[5]) + f6 := int64(f[6]) + f7 := int64(f[7]) + f8 := int64(f[8]) + f9 := int64(f[9]) + + f1_2 := int64(2 * f[1]) + f3_2 := int64(2 * f[3]) + f5_2 := int64(2 * f[5]) + f7_2 := int64(2 * f[7]) + f9_2 := int64(2 * f[9]) + + g0 := int64(g[0]) + g1 := int64(g[1]) + g2 := int64(g[2]) + g3 := int64(g[3]) + g4 := int64(g[4]) + g5 := int64(g[5]) + g6 := int64(g[6]) + g7 := int64(g[7]) + g8 := int64(g[8]) + g9 := int64(g[9]) + + g1_19 := int64(19 * g[1]) /* 1.4*2^29 */ + g2_19 := int64(19 * g[2]) /* 1.4*2^30; still ok */ + g3_19 := int64(19 * g[3]) + g4_19 := int64(19 * g[4]) + g5_19 := int64(19 * g[5]) + g6_19 := int64(19 * g[6]) + g7_19 := int64(19 * g[7]) + g8_19 := int64(19 * g[8]) + g9_19 := int64(19 * g[9]) + + h0 := f0*g0 + f1_2*g9_19 + f2*g8_19 + f3_2*g7_19 + f4*g6_19 + f5_2*g5_19 + f6*g4_19 + f7_2*g3_19 + f8*g2_19 + f9_2*g1_19 + h1 := f0*g1 + f1*g0 + f2*g9_19 + f3*g8_19 + f4*g7_19 + f5*g6_19 + f6*g5_19 + f7*g4_19 + f8*g3_19 + f9*g2_19 + h2 := f0*g2 + f1_2*g1 + f2*g0 + f3_2*g9_19 + f4*g8_19 + f5_2*g7_19 + f6*g6_19 + f7_2*g5_19 + f8*g4_19 + f9_2*g3_19 + h3 := f0*g3 + f1*g2 + f2*g1 + f3*g0 + f4*g9_19 + f5*g8_19 + f6*g7_19 + f7*g6_19 + f8*g5_19 + f9*g4_19 + h4 := f0*g4 + f1_2*g3 + f2*g2 + f3_2*g1 + f4*g0 + f5_2*g9_19 + f6*g8_19 + f7_2*g7_19 + f8*g6_19 + f9_2*g5_19 + h5 := f0*g5 + f1*g4 + f2*g3 + f3*g2 + f4*g1 + f5*g0 + f6*g9_19 + f7*g8_19 + f8*g7_19 + f9*g6_19 + h6 := f0*g6 + f1_2*g5 + f2*g4 + f3_2*g3 + f4*g2 + f5_2*g1 + f6*g0 + f7_2*g9_19 + f8*g8_19 + f9_2*g7_19 + h7 := f0*g7 + f1*g6 + f2*g5 + f3*g4 + f4*g3 + f5*g2 + f6*g1 + f7*g0 + f8*g9_19 + f9*g8_19 + h8 := f0*g8 + f1_2*g7 + f2*g6 + f3_2*g5 + f4*g4 + f5_2*g3 + f6*g2 + f7_2*g1 + f8*g0 + f9_2*g9_19 + h9 := f0*g9 + f1*g8 + f2*g7 + f3*g6 + f4*g5 + f5*g4 + f6*g3 + f7*g2 + f8*g1 + f9*g0 + + FeCombine(h, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9) +} + +func feSquare(f *FieldElement) (h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 int64) { + f0 := int64(f[0]) + f1 := int64(f[1]) + f2 := int64(f[2]) + f3 := int64(f[3]) + f4 := int64(f[4]) + f5 := int64(f[5]) + f6 := int64(f[6]) + f7 := int64(f[7]) + f8 := int64(f[8]) + f9 := int64(f[9]) + f0_2 := int64(2 * f[0]) + f1_2 := int64(2 * f[1]) + f2_2 := int64(2 * f[2]) + f3_2 := int64(2 * f[3]) + f4_2 := int64(2 * f[4]) + f5_2 := int64(2 * f[5]) + f6_2 := int64(2 * f[6]) + f7_2 := int64(2 * f[7]) + f5_38 := 38 * f5 // 1.31*2^30 + f6_19 := 19 * f6 // 1.31*2^30 + f7_38 := 38 * f7 // 1.31*2^30 + f8_19 := 19 * f8 // 1.31*2^30 + f9_38 := 38 * f9 // 1.31*2^30 + + h0 = f0*f0 + f1_2*f9_38 + f2_2*f8_19 + f3_2*f7_38 + f4_2*f6_19 + f5*f5_38 + h1 = f0_2*f1 + f2*f9_38 + f3_2*f8_19 + f4*f7_38 + f5_2*f6_19 + h2 = f0_2*f2 + f1_2*f1 + f3_2*f9_38 + f4_2*f8_19 + f5_2*f7_38 + f6*f6_19 + h3 = f0_2*f3 + f1_2*f2 + f4*f9_38 + f5_2*f8_19 + f6*f7_38 + h4 = f0_2*f4 + f1_2*f3_2 + f2*f2 + f5_2*f9_38 + f6_2*f8_19 + f7*f7_38 + h5 = f0_2*f5 + f1_2*f4 + f2_2*f3 + f6*f9_38 + f7_2*f8_19 + h6 = f0_2*f6 + f1_2*f5_2 + f2_2*f4 + f3_2*f3 + f7_2*f9_38 + f8*f8_19 + h7 = f0_2*f7 + f1_2*f6 + f2_2*f5 + f3_2*f4 + f8*f9_38 + h8 = f0_2*f8 + f1_2*f7_2 + f2_2*f6 + f3_2*f5_2 + f4*f4 + f9*f9_38 + h9 = f0_2*f9 + f1_2*f8 + f2_2*f7 + f3_2*f6 + f4_2*f5 + + return +} + +// FeSquare calculates h = f*f. Can overlap h with f. +// +// Preconditions: +// |f| bounded by 1.1*2^26,1.1*2^25,1.1*2^26,1.1*2^25,etc. +// +// Postconditions: +// |h| bounded by 1.1*2^25,1.1*2^24,1.1*2^25,1.1*2^24,etc. +func FeSquare(h, f *FieldElement) { + h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 := feSquare(f) + FeCombine(h, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9) +} + +// FeSquare2 sets h = 2 * f * f +// +// Can overlap h with f. +// +// Preconditions: +// |f| bounded by 1.65*2^26,1.65*2^25,1.65*2^26,1.65*2^25,etc. +// +// Postconditions: +// |h| bounded by 1.01*2^25,1.01*2^24,1.01*2^25,1.01*2^24,etc. +// See fe_mul.c for discussion of implementation strategy. +func FeSquare2(h, f *FieldElement) { + h0, h1, h2, h3, h4, h5, h6, h7, h8, h9 := feSquare(f) + + h0 += h0 + h1 += h1 + h2 += h2 + h3 += h3 + h4 += h4 + h5 += h5 + h6 += h6 + h7 += h7 + h8 += h8 + h9 += h9 + + FeCombine(h, h0, h1, h2, h3, h4, h5, h6, h7, h8, h9) +} + +func FeInvert(out, z *FieldElement) { + var t0, t1, t2, t3 FieldElement + var i int + + FeSquare(&t0, z) // 2^1 + FeSquare(&t1, &t0) // 2^2 + for i = 1; i < 2; i++ { // 2^3 + FeSquare(&t1, &t1) + } + FeMul(&t1, z, &t1) // 2^3 + 2^0 + FeMul(&t0, &t0, &t1) // 2^3 + 2^1 + 2^0 + FeSquare(&t2, &t0) // 2^4 + 2^2 + 2^1 + FeMul(&t1, &t1, &t2) // 2^4 + 2^3 + 2^2 + 2^1 + 2^0 + FeSquare(&t2, &t1) // 5,4,3,2,1 + for i = 1; i < 5; i++ { // 9,8,7,6,5 + FeSquare(&t2, &t2) + } + FeMul(&t1, &t2, &t1) // 9,8,7,6,5,4,3,2,1,0 + FeSquare(&t2, &t1) // 10..1 + for i = 1; i < 10; i++ { // 19..10 + FeSquare(&t2, &t2) + } + FeMul(&t2, &t2, &t1) // 19..0 + FeSquare(&t3, &t2) // 20..1 + for i = 1; i < 20; i++ { // 39..20 + FeSquare(&t3, &t3) + } + FeMul(&t2, &t3, &t2) // 39..0 + FeSquare(&t2, &t2) // 40..1 + for i = 1; i < 10; i++ { // 49..10 + FeSquare(&t2, &t2) + } + FeMul(&t1, &t2, &t1) // 49..0 + FeSquare(&t2, &t1) // 50..1 + for i = 1; i < 50; i++ { // 99..50 + FeSquare(&t2, &t2) + } + FeMul(&t2, &t2, &t1) // 99..0 + FeSquare(&t3, &t2) // 100..1 + for i = 1; i < 100; i++ { // 199..100 + FeSquare(&t3, &t3) + } + FeMul(&t2, &t3, &t2) // 199..0 + FeSquare(&t2, &t2) // 200..1 + for i = 1; i < 50; i++ { // 249..50 + FeSquare(&t2, &t2) + } + FeMul(&t1, &t2, &t1) // 249..0 + FeSquare(&t1, &t1) // 250..1 + for i = 1; i < 5; i++ { // 254..5 + FeSquare(&t1, &t1) + } + FeMul(out, &t1, &t0) // 254..5,3,1,0 +} + +func fePow22523(out, z *FieldElement) { + var t0, t1, t2 FieldElement + var i int + + FeSquare(&t0, z) + for i = 1; i < 1; i++ { + FeSquare(&t0, &t0) + } + FeSquare(&t1, &t0) + for i = 1; i < 2; i++ { + FeSquare(&t1, &t1) + } + FeMul(&t1, z, &t1) + FeMul(&t0, &t0, &t1) + FeSquare(&t0, &t0) + for i = 1; i < 1; i++ { + FeSquare(&t0, &t0) + } + FeMul(&t0, &t1, &t0) + FeSquare(&t1, &t0) + for i = 1; i < 5; i++ { + FeSquare(&t1, &t1) + } + FeMul(&t0, &t1, &t0) + FeSquare(&t1, &t0) + for i = 1; i < 10; i++ { + FeSquare(&t1, &t1) + } + FeMul(&t1, &t1, &t0) + FeSquare(&t2, &t1) + for i = 1; i < 20; i++ { + FeSquare(&t2, &t2) + } + FeMul(&t1, &t2, &t1) + FeSquare(&t1, &t1) + for i = 1; i < 10; i++ { + FeSquare(&t1, &t1) + } + FeMul(&t0, &t1, &t0) + FeSquare(&t1, &t0) + for i = 1; i < 50; i++ { + FeSquare(&t1, &t1) + } + FeMul(&t1, &t1, &t0) + FeSquare(&t2, &t1) + for i = 1; i < 100; i++ { + FeSquare(&t2, &t2) + } + FeMul(&t1, &t2, &t1) + FeSquare(&t1, &t1) + for i = 1; i < 50; i++ { + FeSquare(&t1, &t1) + } + FeMul(&t0, &t1, &t0) + FeSquare(&t0, &t0) + for i = 1; i < 2; i++ { + FeSquare(&t0, &t0) + } + FeMul(out, &t0, z) +} + +// Group elements are members of the elliptic curve -x^2 + y^2 = 1 + d * x^2 * +// y^2 where d = -121665/121666. +// +// Several representations are used: +// ProjectiveGroupElement: (X:Y:Z) satisfying x=X/Z, y=Y/Z +// ExtendedGroupElement: (X:Y:Z:T) satisfying x=X/Z, y=Y/Z, XY=ZT +// CompletedGroupElement: ((X:Z),(Y:T)) satisfying x=X/Z, y=Y/T +// PreComputedGroupElement: (y+x,y-x,2dxy) + +type ProjectiveGroupElement struct { + X, Y, Z FieldElement +} + +type ExtendedGroupElement struct { + X, Y, Z, T FieldElement +} + +type CompletedGroupElement struct { + X, Y, Z, T FieldElement +} + +type PreComputedGroupElement struct { + yPlusX, yMinusX, xy2d FieldElement +} + +type CachedGroupElement struct { + yPlusX, yMinusX, Z, T2d FieldElement +} + +func (p *ProjectiveGroupElement) Zero() { + FeZero(&p.X) + FeOne(&p.Y) + FeOne(&p.Z) +} + +func (p *ProjectiveGroupElement) Double(r *CompletedGroupElement) { + var t0 FieldElement + + FeSquare(&r.X, &p.X) + FeSquare(&r.Z, &p.Y) + FeSquare2(&r.T, &p.Z) + FeAdd(&r.Y, &p.X, &p.Y) + FeSquare(&t0, &r.Y) + FeAdd(&r.Y, &r.Z, &r.X) + FeSub(&r.Z, &r.Z, &r.X) + FeSub(&r.X, &t0, &r.Y) + FeSub(&r.T, &r.T, &r.Z) +} + +func (p *ProjectiveGroupElement) ToBytes(s *[32]byte) { + var recip, x, y FieldElement + + FeInvert(&recip, &p.Z) + FeMul(&x, &p.X, &recip) + FeMul(&y, &p.Y, &recip) + FeToBytes(s, &y) + s[31] ^= FeIsNegative(&x) << 7 +} + +func (p *ExtendedGroupElement) Zero() { + FeZero(&p.X) + FeOne(&p.Y) + FeOne(&p.Z) + FeZero(&p.T) +} + +func (p *ExtendedGroupElement) Double(r *CompletedGroupElement) { + var q ProjectiveGroupElement + p.ToProjective(&q) + q.Double(r) +} + +func (p *ExtendedGroupElement) ToCached(r *CachedGroupElement) { + FeAdd(&r.yPlusX, &p.Y, &p.X) + FeSub(&r.yMinusX, &p.Y, &p.X) + FeCopy(&r.Z, &p.Z) + FeMul(&r.T2d, &p.T, &d2) +} + +func (p *ExtendedGroupElement) ToProjective(r *ProjectiveGroupElement) { + FeCopy(&r.X, &p.X) + FeCopy(&r.Y, &p.Y) + FeCopy(&r.Z, &p.Z) +} + +func (p *ExtendedGroupElement) ToBytes(s *[32]byte) { + var recip, x, y FieldElement + + FeInvert(&recip, &p.Z) + FeMul(&x, &p.X, &recip) + FeMul(&y, &p.Y, &recip) + FeToBytes(s, &y) + s[31] ^= FeIsNegative(&x) << 7 +} + +func (p *ExtendedGroupElement) FromBytes(s *[32]byte) bool { + var u, v, v3, vxx, check FieldElement + + FeFromBytes(&p.Y, s) + FeOne(&p.Z) + FeSquare(&u, &p.Y) + FeMul(&v, &u, &d) + FeSub(&u, &u, &p.Z) // y = y^2-1 + FeAdd(&v, &v, &p.Z) // v = dy^2+1 + + FeSquare(&v3, &v) + FeMul(&v3, &v3, &v) // v3 = v^3 + FeSquare(&p.X, &v3) + FeMul(&p.X, &p.X, &v) + FeMul(&p.X, &p.X, &u) // x = uv^7 + + fePow22523(&p.X, &p.X) // x = (uv^7)^((q-5)/8) + FeMul(&p.X, &p.X, &v3) + FeMul(&p.X, &p.X, &u) // x = uv^3(uv^7)^((q-5)/8) + + var tmpX, tmp2 [32]byte + + FeSquare(&vxx, &p.X) + FeMul(&vxx, &vxx, &v) + FeSub(&check, &vxx, &u) // vx^2-u + if FeIsNonZero(&check) == 1 { + FeAdd(&check, &vxx, &u) // vx^2+u + if FeIsNonZero(&check) == 1 { + return false + } + FeMul(&p.X, &p.X, &SqrtM1) + + FeToBytes(&tmpX, &p.X) + for i, v := range tmpX { + tmp2[31-i] = v + } + } + + if FeIsNegative(&p.X) != (s[31] >> 7) { + FeNeg(&p.X, &p.X) + } + + FeMul(&p.T, &p.X, &p.Y) + return true +} + +func (p *CompletedGroupElement) ToProjective(r *ProjectiveGroupElement) { + FeMul(&r.X, &p.X, &p.T) + FeMul(&r.Y, &p.Y, &p.Z) + FeMul(&r.Z, &p.Z, &p.T) +} + +func (p *CompletedGroupElement) ToExtended(r *ExtendedGroupElement) { + FeMul(&r.X, &p.X, &p.T) + FeMul(&r.Y, &p.Y, &p.Z) + FeMul(&r.Z, &p.Z, &p.T) + FeMul(&r.T, &p.X, &p.Y) +} + +func (p *PreComputedGroupElement) Zero() { + FeOne(&p.yPlusX) + FeOne(&p.yMinusX) + FeZero(&p.xy2d) +} + +func geAdd(r *CompletedGroupElement, p *ExtendedGroupElement, q *CachedGroupElement) { + var t0 FieldElement + + FeAdd(&r.X, &p.Y, &p.X) + FeSub(&r.Y, &p.Y, &p.X) + FeMul(&r.Z, &r.X, &q.yPlusX) + FeMul(&r.Y, &r.Y, &q.yMinusX) + FeMul(&r.T, &q.T2d, &p.T) + FeMul(&r.X, &p.Z, &q.Z) + FeAdd(&t0, &r.X, &r.X) + FeSub(&r.X, &r.Z, &r.Y) + FeAdd(&r.Y, &r.Z, &r.Y) + FeAdd(&r.Z, &t0, &r.T) + FeSub(&r.T, &t0, &r.T) +} + +func geSub(r *CompletedGroupElement, p *ExtendedGroupElement, q *CachedGroupElement) { + var t0 FieldElement + + FeAdd(&r.X, &p.Y, &p.X) + FeSub(&r.Y, &p.Y, &p.X) + FeMul(&r.Z, &r.X, &q.yMinusX) + FeMul(&r.Y, &r.Y, &q.yPlusX) + FeMul(&r.T, &q.T2d, &p.T) + FeMul(&r.X, &p.Z, &q.Z) + FeAdd(&t0, &r.X, &r.X) + FeSub(&r.X, &r.Z, &r.Y) + FeAdd(&r.Y, &r.Z, &r.Y) + FeSub(&r.Z, &t0, &r.T) + FeAdd(&r.T, &t0, &r.T) +} + +func geMixedAdd(r *CompletedGroupElement, p *ExtendedGroupElement, q *PreComputedGroupElement) { + var t0 FieldElement + + FeAdd(&r.X, &p.Y, &p.X) + FeSub(&r.Y, &p.Y, &p.X) + FeMul(&r.Z, &r.X, &q.yPlusX) + FeMul(&r.Y, &r.Y, &q.yMinusX) + FeMul(&r.T, &q.xy2d, &p.T) + FeAdd(&t0, &p.Z, &p.Z) + FeSub(&r.X, &r.Z, &r.Y) + FeAdd(&r.Y, &r.Z, &r.Y) + FeAdd(&r.Z, &t0, &r.T) + FeSub(&r.T, &t0, &r.T) +} + +func geMixedSub(r *CompletedGroupElement, p *ExtendedGroupElement, q *PreComputedGroupElement) { + var t0 FieldElement + + FeAdd(&r.X, &p.Y, &p.X) + FeSub(&r.Y, &p.Y, &p.X) + FeMul(&r.Z, &r.X, &q.yMinusX) + FeMul(&r.Y, &r.Y, &q.yPlusX) + FeMul(&r.T, &q.xy2d, &p.T) + FeAdd(&t0, &p.Z, &p.Z) + FeSub(&r.X, &r.Z, &r.Y) + FeAdd(&r.Y, &r.Z, &r.Y) + FeSub(&r.Z, &t0, &r.T) + FeAdd(&r.T, &t0, &r.T) +} + +func slide(r *[256]int8, a *[32]byte) { + for i := range r { + r[i] = int8(1 & (a[i>>3] >> uint(i&7))) + } + + for i := range r { + if r[i] != 0 { + for b := 1; b <= 6 && i+b < 256; b++ { + if r[i+b] != 0 { + if r[i]+(r[i+b]<= -15 { + r[i] -= r[i+b] << uint(b) + for k := i + b; k < 256; k++ { + if r[k] == 0 { + r[k] = 1 + break + } + r[k] = 0 + } + } else { + break + } + } + } + } + } +} + +// GeDoubleScalarMultVartime sets r = a*A + b*B +// where a = a[0]+256*a[1]+...+256^31 a[31]. +// and b = b[0]+256*b[1]+...+256^31 b[31]. +// B is the Ed25519 base point (x,4/5) with x positive. +func GeDoubleScalarMultVartime(r *ProjectiveGroupElement, a *[32]byte, A *ExtendedGroupElement, b *[32]byte) { + var aSlide, bSlide [256]int8 + var Ai [8]CachedGroupElement // A,3A,5A,7A,9A,11A,13A,15A + var t CompletedGroupElement + var u, A2 ExtendedGroupElement + var i int + + slide(&aSlide, a) + slide(&bSlide, b) + + A.ToCached(&Ai[0]) + A.Double(&t) + t.ToExtended(&A2) + + for i := 0; i < 7; i++ { + geAdd(&t, &A2, &Ai[i]) + t.ToExtended(&u) + u.ToCached(&Ai[i+1]) + } + + r.Zero() + + for i = 255; i >= 0; i-- { + if aSlide[i] != 0 || bSlide[i] != 0 { + break + } + } + + for ; i >= 0; i-- { + r.Double(&t) + + if aSlide[i] > 0 { + t.ToExtended(&u) + geAdd(&t, &u, &Ai[aSlide[i]/2]) + } else if aSlide[i] < 0 { + t.ToExtended(&u) + geSub(&t, &u, &Ai[(-aSlide[i])/2]) + } + + if bSlide[i] > 0 { + t.ToExtended(&u) + geMixedAdd(&t, &u, &bi[bSlide[i]/2]) + } else if bSlide[i] < 0 { + t.ToExtended(&u) + geMixedSub(&t, &u, &bi[(-bSlide[i])/2]) + } + + t.ToProjective(r) + } +} + +// equal returns 1 if b == c and 0 otherwise, assuming that b and c are +// non-negative. +func equal(b, c int32) int32 { + x := uint32(b ^ c) + x-- + return int32(x >> 31) +} + +// negative returns 1 if b < 0 and 0 otherwise. +func negative(b int32) int32 { + return (b >> 31) & 1 +} + +func PreComputedGroupElementCMove(t, u *PreComputedGroupElement, b int32) { + FeCMove(&t.yPlusX, &u.yPlusX, b) + FeCMove(&t.yMinusX, &u.yMinusX, b) + FeCMove(&t.xy2d, &u.xy2d, b) +} + +func selectPoint(t *PreComputedGroupElement, pos int32, b int32) { + var minusT PreComputedGroupElement + bNegative := negative(b) + bAbs := b - (((-bNegative) & b) << 1) + + t.Zero() + for i := int32(0); i < 8; i++ { + PreComputedGroupElementCMove(t, &base[pos][i], equal(bAbs, i+1)) + } + FeCopy(&minusT.yPlusX, &t.yMinusX) + FeCopy(&minusT.yMinusX, &t.yPlusX) + FeNeg(&minusT.xy2d, &t.xy2d) + PreComputedGroupElementCMove(t, &minusT, bNegative) +} + +// GeScalarMultBase computes h = a*B, where +// a = a[0]+256*a[1]+...+256^31 a[31] +// B is the Ed25519 base point (x,4/5) with x positive. +// +// Preconditions: +// a[31] <= 127 +func GeScalarMultBase(h *ExtendedGroupElement, a *[32]byte) { + var e [64]int8 + + for i, v := range a { + e[2*i] = int8(v & 15) + e[2*i+1] = int8((v >> 4) & 15) + } + + // each e[i] is between 0 and 15 and e[63] is between 0 and 7. + + carry := int8(0) + for i := 0; i < 63; i++ { + e[i] += carry + carry = (e[i] + 8) >> 4 + e[i] -= carry << 4 + } + e[63] += carry + // each e[i] is between -8 and 8. + + h.Zero() + var t PreComputedGroupElement + var r CompletedGroupElement + for i := int32(1); i < 64; i += 2 { + selectPoint(&t, i/2, int32(e[i])) + geMixedAdd(&r, h, &t) + r.ToExtended(h) + } + + var s ProjectiveGroupElement + + h.Double(&r) + r.ToProjective(&s) + s.Double(&r) + r.ToProjective(&s) + s.Double(&r) + r.ToProjective(&s) + s.Double(&r) + r.ToExtended(h) + + for i := int32(0); i < 64; i += 2 { + selectPoint(&t, i/2, int32(e[i])) + geMixedAdd(&r, h, &t) + r.ToExtended(h) + } +} + +// The scalars are GF(2^252 + 27742317777372353535851937790883648493). + +// Input: +// a[0]+256*a[1]+...+256^31*a[31] = a +// b[0]+256*b[1]+...+256^31*b[31] = b +// c[0]+256*c[1]+...+256^31*c[31] = c +// +// Output: +// s[0]+256*s[1]+...+256^31*s[31] = (ab+c) mod l +// where l = 2^252 + 27742317777372353535851937790883648493. +func ScMulAdd(s, a, b, c *[32]byte) { + a0 := 2097151 & load3(a[:]) + a1 := 2097151 & (load4(a[2:]) >> 5) + a2 := 2097151 & (load3(a[5:]) >> 2) + a3 := 2097151 & (load4(a[7:]) >> 7) + a4 := 2097151 & (load4(a[10:]) >> 4) + a5 := 2097151 & (load3(a[13:]) >> 1) + a6 := 2097151 & (load4(a[15:]) >> 6) + a7 := 2097151 & (load3(a[18:]) >> 3) + a8 := 2097151 & load3(a[21:]) + a9 := 2097151 & (load4(a[23:]) >> 5) + a10 := 2097151 & (load3(a[26:]) >> 2) + a11 := (load4(a[28:]) >> 7) + b0 := 2097151 & load3(b[:]) + b1 := 2097151 & (load4(b[2:]) >> 5) + b2 := 2097151 & (load3(b[5:]) >> 2) + b3 := 2097151 & (load4(b[7:]) >> 7) + b4 := 2097151 & (load4(b[10:]) >> 4) + b5 := 2097151 & (load3(b[13:]) >> 1) + b6 := 2097151 & (load4(b[15:]) >> 6) + b7 := 2097151 & (load3(b[18:]) >> 3) + b8 := 2097151 & load3(b[21:]) + b9 := 2097151 & (load4(b[23:]) >> 5) + b10 := 2097151 & (load3(b[26:]) >> 2) + b11 := (load4(b[28:]) >> 7) + c0 := 2097151 & load3(c[:]) + c1 := 2097151 & (load4(c[2:]) >> 5) + c2 := 2097151 & (load3(c[5:]) >> 2) + c3 := 2097151 & (load4(c[7:]) >> 7) + c4 := 2097151 & (load4(c[10:]) >> 4) + c5 := 2097151 & (load3(c[13:]) >> 1) + c6 := 2097151 & (load4(c[15:]) >> 6) + c7 := 2097151 & (load3(c[18:]) >> 3) + c8 := 2097151 & load3(c[21:]) + c9 := 2097151 & (load4(c[23:]) >> 5) + c10 := 2097151 & (load3(c[26:]) >> 2) + c11 := (load4(c[28:]) >> 7) + var carry [23]int64 + + s0 := c0 + a0*b0 + s1 := c1 + a0*b1 + a1*b0 + s2 := c2 + a0*b2 + a1*b1 + a2*b0 + s3 := c3 + a0*b3 + a1*b2 + a2*b1 + a3*b0 + s4 := c4 + a0*b4 + a1*b3 + a2*b2 + a3*b1 + a4*b0 + s5 := c5 + a0*b5 + a1*b4 + a2*b3 + a3*b2 + a4*b1 + a5*b0 + s6 := c6 + a0*b6 + a1*b5 + a2*b4 + a3*b3 + a4*b2 + a5*b1 + a6*b0 + s7 := c7 + a0*b7 + a1*b6 + a2*b5 + a3*b4 + a4*b3 + a5*b2 + a6*b1 + a7*b0 + s8 := c8 + a0*b8 + a1*b7 + a2*b6 + a3*b5 + a4*b4 + a5*b3 + a6*b2 + a7*b1 + a8*b0 + s9 := c9 + a0*b9 + a1*b8 + a2*b7 + a3*b6 + a4*b5 + a5*b4 + a6*b3 + a7*b2 + a8*b1 + a9*b0 + s10 := c10 + a0*b10 + a1*b9 + a2*b8 + a3*b7 + a4*b6 + a5*b5 + a6*b4 + a7*b3 + a8*b2 + a9*b1 + a10*b0 + s11 := c11 + a0*b11 + a1*b10 + a2*b9 + a3*b8 + a4*b7 + a5*b6 + a6*b5 + a7*b4 + a8*b3 + a9*b2 + a10*b1 + a11*b0 + s12 := a1*b11 + a2*b10 + a3*b9 + a4*b8 + a5*b7 + a6*b6 + a7*b5 + a8*b4 + a9*b3 + a10*b2 + a11*b1 + s13 := a2*b11 + a3*b10 + a4*b9 + a5*b8 + a6*b7 + a7*b6 + a8*b5 + a9*b4 + a10*b3 + a11*b2 + s14 := a3*b11 + a4*b10 + a5*b9 + a6*b8 + a7*b7 + a8*b6 + a9*b5 + a10*b4 + a11*b3 + s15 := a4*b11 + a5*b10 + a6*b9 + a7*b8 + a8*b7 + a9*b6 + a10*b5 + a11*b4 + s16 := a5*b11 + a6*b10 + a7*b9 + a8*b8 + a9*b7 + a10*b6 + a11*b5 + s17 := a6*b11 + a7*b10 + a8*b9 + a9*b8 + a10*b7 + a11*b6 + s18 := a7*b11 + a8*b10 + a9*b9 + a10*b8 + a11*b7 + s19 := a8*b11 + a9*b10 + a10*b9 + a11*b8 + s20 := a9*b11 + a10*b10 + a11*b9 + s21 := a10*b11 + a11*b10 + s22 := a11 * b11 + s23 := int64(0) + + carry[0] = (s0 + (1 << 20)) >> 21 + s1 += carry[0] + s0 -= carry[0] << 21 + carry[2] = (s2 + (1 << 20)) >> 21 + s3 += carry[2] + s2 -= carry[2] << 21 + carry[4] = (s4 + (1 << 20)) >> 21 + s5 += carry[4] + s4 -= carry[4] << 21 + carry[6] = (s6 + (1 << 20)) >> 21 + s7 += carry[6] + s6 -= carry[6] << 21 + carry[8] = (s8 + (1 << 20)) >> 21 + s9 += carry[8] + s8 -= carry[8] << 21 + carry[10] = (s10 + (1 << 20)) >> 21 + s11 += carry[10] + s10 -= carry[10] << 21 + carry[12] = (s12 + (1 << 20)) >> 21 + s13 += carry[12] + s12 -= carry[12] << 21 + carry[14] = (s14 + (1 << 20)) >> 21 + s15 += carry[14] + s14 -= carry[14] << 21 + carry[16] = (s16 + (1 << 20)) >> 21 + s17 += carry[16] + s16 -= carry[16] << 21 + carry[18] = (s18 + (1 << 20)) >> 21 + s19 += carry[18] + s18 -= carry[18] << 21 + carry[20] = (s20 + (1 << 20)) >> 21 + s21 += carry[20] + s20 -= carry[20] << 21 + carry[22] = (s22 + (1 << 20)) >> 21 + s23 += carry[22] + s22 -= carry[22] << 21 + + carry[1] = (s1 + (1 << 20)) >> 21 + s2 += carry[1] + s1 -= carry[1] << 21 + carry[3] = (s3 + (1 << 20)) >> 21 + s4 += carry[3] + s3 -= carry[3] << 21 + carry[5] = (s5 + (1 << 20)) >> 21 + s6 += carry[5] + s5 -= carry[5] << 21 + carry[7] = (s7 + (1 << 20)) >> 21 + s8 += carry[7] + s7 -= carry[7] << 21 + carry[9] = (s9 + (1 << 20)) >> 21 + s10 += carry[9] + s9 -= carry[9] << 21 + carry[11] = (s11 + (1 << 20)) >> 21 + s12 += carry[11] + s11 -= carry[11] << 21 + carry[13] = (s13 + (1 << 20)) >> 21 + s14 += carry[13] + s13 -= carry[13] << 21 + carry[15] = (s15 + (1 << 20)) >> 21 + s16 += carry[15] + s15 -= carry[15] << 21 + carry[17] = (s17 + (1 << 20)) >> 21 + s18 += carry[17] + s17 -= carry[17] << 21 + carry[19] = (s19 + (1 << 20)) >> 21 + s20 += carry[19] + s19 -= carry[19] << 21 + carry[21] = (s21 + (1 << 20)) >> 21 + s22 += carry[21] + s21 -= carry[21] << 21 + + s11 += s23 * 666643 + s12 += s23 * 470296 + s13 += s23 * 654183 + s14 -= s23 * 997805 + s15 += s23 * 136657 + s16 -= s23 * 683901 + s23 = 0 + + s10 += s22 * 666643 + s11 += s22 * 470296 + s12 += s22 * 654183 + s13 -= s22 * 997805 + s14 += s22 * 136657 + s15 -= s22 * 683901 + s22 = 0 + + s9 += s21 * 666643 + s10 += s21 * 470296 + s11 += s21 * 654183 + s12 -= s21 * 997805 + s13 += s21 * 136657 + s14 -= s21 * 683901 + s21 = 0 + + s8 += s20 * 666643 + s9 += s20 * 470296 + s10 += s20 * 654183 + s11 -= s20 * 997805 + s12 += s20 * 136657 + s13 -= s20 * 683901 + s20 = 0 + + s7 += s19 * 666643 + s8 += s19 * 470296 + s9 += s19 * 654183 + s10 -= s19 * 997805 + s11 += s19 * 136657 + s12 -= s19 * 683901 + s19 = 0 + + s6 += s18 * 666643 + s7 += s18 * 470296 + s8 += s18 * 654183 + s9 -= s18 * 997805 + s10 += s18 * 136657 + s11 -= s18 * 683901 + s18 = 0 + + carry[6] = (s6 + (1 << 20)) >> 21 + s7 += carry[6] + s6 -= carry[6] << 21 + carry[8] = (s8 + (1 << 20)) >> 21 + s9 += carry[8] + s8 -= carry[8] << 21 + carry[10] = (s10 + (1 << 20)) >> 21 + s11 += carry[10] + s10 -= carry[10] << 21 + carry[12] = (s12 + (1 << 20)) >> 21 + s13 += carry[12] + s12 -= carry[12] << 21 + carry[14] = (s14 + (1 << 20)) >> 21 + s15 += carry[14] + s14 -= carry[14] << 21 + carry[16] = (s16 + (1 << 20)) >> 21 + s17 += carry[16] + s16 -= carry[16] << 21 + + carry[7] = (s7 + (1 << 20)) >> 21 + s8 += carry[7] + s7 -= carry[7] << 21 + carry[9] = (s9 + (1 << 20)) >> 21 + s10 += carry[9] + s9 -= carry[9] << 21 + carry[11] = (s11 + (1 << 20)) >> 21 + s12 += carry[11] + s11 -= carry[11] << 21 + carry[13] = (s13 + (1 << 20)) >> 21 + s14 += carry[13] + s13 -= carry[13] << 21 + carry[15] = (s15 + (1 << 20)) >> 21 + s16 += carry[15] + s15 -= carry[15] << 21 + + s5 += s17 * 666643 + s6 += s17 * 470296 + s7 += s17 * 654183 + s8 -= s17 * 997805 + s9 += s17 * 136657 + s10 -= s17 * 683901 + s17 = 0 + + s4 += s16 * 666643 + s5 += s16 * 470296 + s6 += s16 * 654183 + s7 -= s16 * 997805 + s8 += s16 * 136657 + s9 -= s16 * 683901 + s16 = 0 + + s3 += s15 * 666643 + s4 += s15 * 470296 + s5 += s15 * 654183 + s6 -= s15 * 997805 + s7 += s15 * 136657 + s8 -= s15 * 683901 + s15 = 0 + + s2 += s14 * 666643 + s3 += s14 * 470296 + s4 += s14 * 654183 + s5 -= s14 * 997805 + s6 += s14 * 136657 + s7 -= s14 * 683901 + s14 = 0 + + s1 += s13 * 666643 + s2 += s13 * 470296 + s3 += s13 * 654183 + s4 -= s13 * 997805 + s5 += s13 * 136657 + s6 -= s13 * 683901 + s13 = 0 + + s0 += s12 * 666643 + s1 += s12 * 470296 + s2 += s12 * 654183 + s3 -= s12 * 997805 + s4 += s12 * 136657 + s5 -= s12 * 683901 + s12 = 0 + + carry[0] = (s0 + (1 << 20)) >> 21 + s1 += carry[0] + s0 -= carry[0] << 21 + carry[2] = (s2 + (1 << 20)) >> 21 + s3 += carry[2] + s2 -= carry[2] << 21 + carry[4] = (s4 + (1 << 20)) >> 21 + s5 += carry[4] + s4 -= carry[4] << 21 + carry[6] = (s6 + (1 << 20)) >> 21 + s7 += carry[6] + s6 -= carry[6] << 21 + carry[8] = (s8 + (1 << 20)) >> 21 + s9 += carry[8] + s8 -= carry[8] << 21 + carry[10] = (s10 + (1 << 20)) >> 21 + s11 += carry[10] + s10 -= carry[10] << 21 + + carry[1] = (s1 + (1 << 20)) >> 21 + s2 += carry[1] + s1 -= carry[1] << 21 + carry[3] = (s3 + (1 << 20)) >> 21 + s4 += carry[3] + s3 -= carry[3] << 21 + carry[5] = (s5 + (1 << 20)) >> 21 + s6 += carry[5] + s5 -= carry[5] << 21 + carry[7] = (s7 + (1 << 20)) >> 21 + s8 += carry[7] + s7 -= carry[7] << 21 + carry[9] = (s9 + (1 << 20)) >> 21 + s10 += carry[9] + s9 -= carry[9] << 21 + carry[11] = (s11 + (1 << 20)) >> 21 + s12 += carry[11] + s11 -= carry[11] << 21 + + s0 += s12 * 666643 + s1 += s12 * 470296 + s2 += s12 * 654183 + s3 -= s12 * 997805 + s4 += s12 * 136657 + s5 -= s12 * 683901 + s12 = 0 + + carry[0] = s0 >> 21 + s1 += carry[0] + s0 -= carry[0] << 21 + carry[1] = s1 >> 21 + s2 += carry[1] + s1 -= carry[1] << 21 + carry[2] = s2 >> 21 + s3 += carry[2] + s2 -= carry[2] << 21 + carry[3] = s3 >> 21 + s4 += carry[3] + s3 -= carry[3] << 21 + carry[4] = s4 >> 21 + s5 += carry[4] + s4 -= carry[4] << 21 + carry[5] = s5 >> 21 + s6 += carry[5] + s5 -= carry[5] << 21 + carry[6] = s6 >> 21 + s7 += carry[6] + s6 -= carry[6] << 21 + carry[7] = s7 >> 21 + s8 += carry[7] + s7 -= carry[7] << 21 + carry[8] = s8 >> 21 + s9 += carry[8] + s8 -= carry[8] << 21 + carry[9] = s9 >> 21 + s10 += carry[9] + s9 -= carry[9] << 21 + carry[10] = s10 >> 21 + s11 += carry[10] + s10 -= carry[10] << 21 + carry[11] = s11 >> 21 + s12 += carry[11] + s11 -= carry[11] << 21 + + s0 += s12 * 666643 + s1 += s12 * 470296 + s2 += s12 * 654183 + s3 -= s12 * 997805 + s4 += s12 * 136657 + s5 -= s12 * 683901 + s12 = 0 + + carry[0] = s0 >> 21 + s1 += carry[0] + s0 -= carry[0] << 21 + carry[1] = s1 >> 21 + s2 += carry[1] + s1 -= carry[1] << 21 + carry[2] = s2 >> 21 + s3 += carry[2] + s2 -= carry[2] << 21 + carry[3] = s3 >> 21 + s4 += carry[3] + s3 -= carry[3] << 21 + carry[4] = s4 >> 21 + s5 += carry[4] + s4 -= carry[4] << 21 + carry[5] = s5 >> 21 + s6 += carry[5] + s5 -= carry[5] << 21 + carry[6] = s6 >> 21 + s7 += carry[6] + s6 -= carry[6] << 21 + carry[7] = s7 >> 21 + s8 += carry[7] + s7 -= carry[7] << 21 + carry[8] = s8 >> 21 + s9 += carry[8] + s8 -= carry[8] << 21 + carry[9] = s9 >> 21 + s10 += carry[9] + s9 -= carry[9] << 21 + carry[10] = s10 >> 21 + s11 += carry[10] + s10 -= carry[10] << 21 + + s[0] = byte(s0 >> 0) + s[1] = byte(s0 >> 8) + s[2] = byte((s0 >> 16) | (s1 << 5)) + s[3] = byte(s1 >> 3) + s[4] = byte(s1 >> 11) + s[5] = byte((s1 >> 19) | (s2 << 2)) + s[6] = byte(s2 >> 6) + s[7] = byte((s2 >> 14) | (s3 << 7)) + s[8] = byte(s3 >> 1) + s[9] = byte(s3 >> 9) + s[10] = byte((s3 >> 17) | (s4 << 4)) + s[11] = byte(s4 >> 4) + s[12] = byte(s4 >> 12) + s[13] = byte((s4 >> 20) | (s5 << 1)) + s[14] = byte(s5 >> 7) + s[15] = byte((s5 >> 15) | (s6 << 6)) + s[16] = byte(s6 >> 2) + s[17] = byte(s6 >> 10) + s[18] = byte((s6 >> 18) | (s7 << 3)) + s[19] = byte(s7 >> 5) + s[20] = byte(s7 >> 13) + s[21] = byte(s8 >> 0) + s[22] = byte(s8 >> 8) + s[23] = byte((s8 >> 16) | (s9 << 5)) + s[24] = byte(s9 >> 3) + s[25] = byte(s9 >> 11) + s[26] = byte((s9 >> 19) | (s10 << 2)) + s[27] = byte(s10 >> 6) + s[28] = byte((s10 >> 14) | (s11 << 7)) + s[29] = byte(s11 >> 1) + s[30] = byte(s11 >> 9) + s[31] = byte(s11 >> 17) +} + +// Input: +// s[0]+256*s[1]+...+256^63*s[63] = s +// +// Output: +// s[0]+256*s[1]+...+256^31*s[31] = s mod l +// where l = 2^252 + 27742317777372353535851937790883648493. +func ScReduce(out *[32]byte, s *[64]byte) { + s0 := 2097151 & load3(s[:]) + s1 := 2097151 & (load4(s[2:]) >> 5) + s2 := 2097151 & (load3(s[5:]) >> 2) + s3 := 2097151 & (load4(s[7:]) >> 7) + s4 := 2097151 & (load4(s[10:]) >> 4) + s5 := 2097151 & (load3(s[13:]) >> 1) + s6 := 2097151 & (load4(s[15:]) >> 6) + s7 := 2097151 & (load3(s[18:]) >> 3) + s8 := 2097151 & load3(s[21:]) + s9 := 2097151 & (load4(s[23:]) >> 5) + s10 := 2097151 & (load3(s[26:]) >> 2) + s11 := 2097151 & (load4(s[28:]) >> 7) + s12 := 2097151 & (load4(s[31:]) >> 4) + s13 := 2097151 & (load3(s[34:]) >> 1) + s14 := 2097151 & (load4(s[36:]) >> 6) + s15 := 2097151 & (load3(s[39:]) >> 3) + s16 := 2097151 & load3(s[42:]) + s17 := 2097151 & (load4(s[44:]) >> 5) + s18 := 2097151 & (load3(s[47:]) >> 2) + s19 := 2097151 & (load4(s[49:]) >> 7) + s20 := 2097151 & (load4(s[52:]) >> 4) + s21 := 2097151 & (load3(s[55:]) >> 1) + s22 := 2097151 & (load4(s[57:]) >> 6) + s23 := (load4(s[60:]) >> 3) + + s11 += s23 * 666643 + s12 += s23 * 470296 + s13 += s23 * 654183 + s14 -= s23 * 997805 + s15 += s23 * 136657 + s16 -= s23 * 683901 + s23 = 0 + + s10 += s22 * 666643 + s11 += s22 * 470296 + s12 += s22 * 654183 + s13 -= s22 * 997805 + s14 += s22 * 136657 + s15 -= s22 * 683901 + s22 = 0 + + s9 += s21 * 666643 + s10 += s21 * 470296 + s11 += s21 * 654183 + s12 -= s21 * 997805 + s13 += s21 * 136657 + s14 -= s21 * 683901 + s21 = 0 + + s8 += s20 * 666643 + s9 += s20 * 470296 + s10 += s20 * 654183 + s11 -= s20 * 997805 + s12 += s20 * 136657 + s13 -= s20 * 683901 + s20 = 0 + + s7 += s19 * 666643 + s8 += s19 * 470296 + s9 += s19 * 654183 + s10 -= s19 * 997805 + s11 += s19 * 136657 + s12 -= s19 * 683901 + s19 = 0 + + s6 += s18 * 666643 + s7 += s18 * 470296 + s8 += s18 * 654183 + s9 -= s18 * 997805 + s10 += s18 * 136657 + s11 -= s18 * 683901 + s18 = 0 + + var carry [17]int64 + + carry[6] = (s6 + (1 << 20)) >> 21 + s7 += carry[6] + s6 -= carry[6] << 21 + carry[8] = (s8 + (1 << 20)) >> 21 + s9 += carry[8] + s8 -= carry[8] << 21 + carry[10] = (s10 + (1 << 20)) >> 21 + s11 += carry[10] + s10 -= carry[10] << 21 + carry[12] = (s12 + (1 << 20)) >> 21 + s13 += carry[12] + s12 -= carry[12] << 21 + carry[14] = (s14 + (1 << 20)) >> 21 + s15 += carry[14] + s14 -= carry[14] << 21 + carry[16] = (s16 + (1 << 20)) >> 21 + s17 += carry[16] + s16 -= carry[16] << 21 + + carry[7] = (s7 + (1 << 20)) >> 21 + s8 += carry[7] + s7 -= carry[7] << 21 + carry[9] = (s9 + (1 << 20)) >> 21 + s10 += carry[9] + s9 -= carry[9] << 21 + carry[11] = (s11 + (1 << 20)) >> 21 + s12 += carry[11] + s11 -= carry[11] << 21 + carry[13] = (s13 + (1 << 20)) >> 21 + s14 += carry[13] + s13 -= carry[13] << 21 + carry[15] = (s15 + (1 << 20)) >> 21 + s16 += carry[15] + s15 -= carry[15] << 21 + + s5 += s17 * 666643 + s6 += s17 * 470296 + s7 += s17 * 654183 + s8 -= s17 * 997805 + s9 += s17 * 136657 + s10 -= s17 * 683901 + s17 = 0 + + s4 += s16 * 666643 + s5 += s16 * 470296 + s6 += s16 * 654183 + s7 -= s16 * 997805 + s8 += s16 * 136657 + s9 -= s16 * 683901 + s16 = 0 + + s3 += s15 * 666643 + s4 += s15 * 470296 + s5 += s15 * 654183 + s6 -= s15 * 997805 + s7 += s15 * 136657 + s8 -= s15 * 683901 + s15 = 0 + + s2 += s14 * 666643 + s3 += s14 * 470296 + s4 += s14 * 654183 + s5 -= s14 * 997805 + s6 += s14 * 136657 + s7 -= s14 * 683901 + s14 = 0 + + s1 += s13 * 666643 + s2 += s13 * 470296 + s3 += s13 * 654183 + s4 -= s13 * 997805 + s5 += s13 * 136657 + s6 -= s13 * 683901 + s13 = 0 + + s0 += s12 * 666643 + s1 += s12 * 470296 + s2 += s12 * 654183 + s3 -= s12 * 997805 + s4 += s12 * 136657 + s5 -= s12 * 683901 + s12 = 0 + + carry[0] = (s0 + (1 << 20)) >> 21 + s1 += carry[0] + s0 -= carry[0] << 21 + carry[2] = (s2 + (1 << 20)) >> 21 + s3 += carry[2] + s2 -= carry[2] << 21 + carry[4] = (s4 + (1 << 20)) >> 21 + s5 += carry[4] + s4 -= carry[4] << 21 + carry[6] = (s6 + (1 << 20)) >> 21 + s7 += carry[6] + s6 -= carry[6] << 21 + carry[8] = (s8 + (1 << 20)) >> 21 + s9 += carry[8] + s8 -= carry[8] << 21 + carry[10] = (s10 + (1 << 20)) >> 21 + s11 += carry[10] + s10 -= carry[10] << 21 + + carry[1] = (s1 + (1 << 20)) >> 21 + s2 += carry[1] + s1 -= carry[1] << 21 + carry[3] = (s3 + (1 << 20)) >> 21 + s4 += carry[3] + s3 -= carry[3] << 21 + carry[5] = (s5 + (1 << 20)) >> 21 + s6 += carry[5] + s5 -= carry[5] << 21 + carry[7] = (s7 + (1 << 20)) >> 21 + s8 += carry[7] + s7 -= carry[7] << 21 + carry[9] = (s9 + (1 << 20)) >> 21 + s10 += carry[9] + s9 -= carry[9] << 21 + carry[11] = (s11 + (1 << 20)) >> 21 + s12 += carry[11] + s11 -= carry[11] << 21 + + s0 += s12 * 666643 + s1 += s12 * 470296 + s2 += s12 * 654183 + s3 -= s12 * 997805 + s4 += s12 * 136657 + s5 -= s12 * 683901 + s12 = 0 + + carry[0] = s0 >> 21 + s1 += carry[0] + s0 -= carry[0] << 21 + carry[1] = s1 >> 21 + s2 += carry[1] + s1 -= carry[1] << 21 + carry[2] = s2 >> 21 + s3 += carry[2] + s2 -= carry[2] << 21 + carry[3] = s3 >> 21 + s4 += carry[3] + s3 -= carry[3] << 21 + carry[4] = s4 >> 21 + s5 += carry[4] + s4 -= carry[4] << 21 + carry[5] = s5 >> 21 + s6 += carry[5] + s5 -= carry[5] << 21 + carry[6] = s6 >> 21 + s7 += carry[6] + s6 -= carry[6] << 21 + carry[7] = s7 >> 21 + s8 += carry[7] + s7 -= carry[7] << 21 + carry[8] = s8 >> 21 + s9 += carry[8] + s8 -= carry[8] << 21 + carry[9] = s9 >> 21 + s10 += carry[9] + s9 -= carry[9] << 21 + carry[10] = s10 >> 21 + s11 += carry[10] + s10 -= carry[10] << 21 + carry[11] = s11 >> 21 + s12 += carry[11] + s11 -= carry[11] << 21 + + s0 += s12 * 666643 + s1 += s12 * 470296 + s2 += s12 * 654183 + s3 -= s12 * 997805 + s4 += s12 * 136657 + s5 -= s12 * 683901 + s12 = 0 + + carry[0] = s0 >> 21 + s1 += carry[0] + s0 -= carry[0] << 21 + carry[1] = s1 >> 21 + s2 += carry[1] + s1 -= carry[1] << 21 + carry[2] = s2 >> 21 + s3 += carry[2] + s2 -= carry[2] << 21 + carry[3] = s3 >> 21 + s4 += carry[3] + s3 -= carry[3] << 21 + carry[4] = s4 >> 21 + s5 += carry[4] + s4 -= carry[4] << 21 + carry[5] = s5 >> 21 + s6 += carry[5] + s5 -= carry[5] << 21 + carry[6] = s6 >> 21 + s7 += carry[6] + s6 -= carry[6] << 21 + carry[7] = s7 >> 21 + s8 += carry[7] + s7 -= carry[7] << 21 + carry[8] = s8 >> 21 + s9 += carry[8] + s8 -= carry[8] << 21 + carry[9] = s9 >> 21 + s10 += carry[9] + s9 -= carry[9] << 21 + carry[10] = s10 >> 21 + s11 += carry[10] + s10 -= carry[10] << 21 + + out[0] = byte(s0 >> 0) + out[1] = byte(s0 >> 8) + out[2] = byte((s0 >> 16) | (s1 << 5)) + out[3] = byte(s1 >> 3) + out[4] = byte(s1 >> 11) + out[5] = byte((s1 >> 19) | (s2 << 2)) + out[6] = byte(s2 >> 6) + out[7] = byte((s2 >> 14) | (s3 << 7)) + out[8] = byte(s3 >> 1) + out[9] = byte(s3 >> 9) + out[10] = byte((s3 >> 17) | (s4 << 4)) + out[11] = byte(s4 >> 4) + out[12] = byte(s4 >> 12) + out[13] = byte((s4 >> 20) | (s5 << 1)) + out[14] = byte(s5 >> 7) + out[15] = byte((s5 >> 15) | (s6 << 6)) + out[16] = byte(s6 >> 2) + out[17] = byte(s6 >> 10) + out[18] = byte((s6 >> 18) | (s7 << 3)) + out[19] = byte(s7 >> 5) + out[20] = byte(s7 >> 13) + out[21] = byte(s8 >> 0) + out[22] = byte(s8 >> 8) + out[23] = byte((s8 >> 16) | (s9 << 5)) + out[24] = byte(s9 >> 3) + out[25] = byte(s9 >> 11) + out[26] = byte((s9 >> 19) | (s10 << 2)) + out[27] = byte(s10 >> 6) + out[28] = byte((s10 >> 14) | (s11 << 7)) + out[29] = byte(s11 >> 1) + out[30] = byte(s11 >> 9) + out[31] = byte(s11 >> 17) +} diff --git a/vendor/vendor.json b/vendor/vendor.json index b815568..c862a0a 100644 --- a/vendor/vendor.json +++ b/vendor/vendor.json @@ -69,10 +69,12 @@ "revisionTime": "2016-04-24T11:30:07Z" }, { - "checksumSHA1": "Ewgc6lPiuDZVOf1407rxzSgAOag=", + "checksumSHA1": "ILTVouyz8EPosBS0+g+hYsBnwds=", "path": "github.com/miekg/dns", - "revision": "e4205768578dc90c2669e75a2f8a8bf77e3083a4", - "revisionTime": "2017-08-18T13:14:42Z" + "revision": "787fb05a250f045a0c3e676c8c499ed412633f45", + "revisionTime": "2017-12-21T11:36:42Z", + "version": "v1.0.1", + "versionExact": "v1.0.1" }, { "checksumSHA1": "rJab1YdNhQooDiBWNnt7TLWPyBU=", @@ -152,6 +154,18 @@ "revision": "e645f4e5aaa8506fc71d6edbc5c4ff02c04c46f2", "revisionTime": "2017-07-03T10:12:42Z" }, + { + "checksumSHA1": "1hwn8cgg4EVXhCpJIqmMbzqnUo0=", + "path": "golang.org/x/crypto/ed25519", + "revision": "0fcca4842a8d74bfddc2c96a073bd2a4d2a7a2e8", + "revisionTime": "2017-11-25T19:00:56Z" + }, + { + "checksumSHA1": "LXFcVx8I587SnWmKycSDEq9yvK8=", + "path": "golang.org/x/crypto/ed25519/internal/edwards25519", + "revision": "0fcca4842a8d74bfddc2c96a073bd2a4d2a7a2e8", + "revisionTime": "2017-11-25T19:00:56Z" + }, { "checksumSHA1": "uX2McdP4VcQ6zkAF0Q4oyd0rFtU=", "path": "golang.org/x/net/bpf",