TLS: refactor client-start interface

[exim.git] / src / src / transports / smtp.h

diff --git a/src/src/transports/smtp.h b/src/src/transports/smtp.h
index 6912ad83e260d25aaa615876e592061228bb149b..056efbcf7cf084c41d41cdc1aeecb2b9eeaca75d 100644 (file)
--- a/src/src/transports/smtp.h
+++ b/src/src/transports/smtp.h
@@ -2,9 +2,16 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2014 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */
 /* See the file NOTICE for conditions of use and distribution. */
 
+#define DELIVER_BUFFER_SIZE 4096
+
+#define PENDING          256
+#define PENDING_DEFER   (PENDING + DEFER)
+#define PENDING_OK      (PENDING + OK)
+
+
 /* Private structure for the private options and other private data. */
 
 typedef struct {
@@ -21,18 +28,32 @@ typedef struct {
   uschar *serialize_hosts;
   uschar *hosts_try_auth;
   uschar *hosts_require_auth;
-#ifdef EXPERIMENTAL_PRDR
+  uschar *hosts_try_chunking;
+#ifdef SUPPORT_DANE
+  uschar *hosts_try_dane;
+  uschar *hosts_require_dane;
+  uschar *dane_require_tls_ciphers;
+#endif
+  uschar *hosts_try_fastopen;
+#ifndef DISABLE_PRDR
   uschar *hosts_try_prdr;
 #endif
-#ifdef EXPERIMENTAL_OCSP
+#ifndef DISABLE_OCSP
+  uschar *hosts_request_ocsp;
   uschar *hosts_require_ocsp;
 #endif
   uschar *hosts_require_tls;
   uschar *hosts_avoid_tls;
   uschar *hosts_verify_avoid_tls;
   uschar *hosts_avoid_pipelining;
+#ifdef EXPERIMENTAL_PIPE_CONNECT
+  uschar *hosts_pipe_connect;
+#endif
   uschar *hosts_avoid_esmtp;
+#ifdef SUPPORT_TLS
   uschar *hosts_nopass_tls;
+  uschar *hosts_noproxy_tls;
+#endif
   int     command_timeout;
   int     connect_timeout;
   int     data_timeout;
@@ -46,42 +67,117 @@ typedef struct {
   BOOL    gethostbyname;
   BOOL    dns_qualify_single;
   BOOL    dns_search_parents;
-  uschar *dnssec_request_domains;
-  uschar *dnssec_require_domains;
+  dnssec_domains dnssec;
   BOOL    delay_after_cutoff;
   BOOL    hosts_override;
   BOOL    hosts_randomize;
   BOOL    keepalive;
   BOOL    lmtp_ignore_quota;
+  uschar *expand_retry_include_ip_address;
   BOOL    retry_include_ip_address;
-  #ifdef SUPPORT_TLS
+#ifdef SUPPORT_SOCKS
+  uschar *socks_proxy;
+#endif
+#ifdef SUPPORT_TLS
   uschar *tls_certificate;
   uschar *tls_crl;
   uschar *tls_privatekey;
   uschar *tls_require_ciphers;
-  uschar *gnutls_require_kx;
-  uschar *gnutls_require_mac;
-  uschar *gnutls_require_proto;
   uschar *tls_sni;
   uschar *tls_verify_certificates;
   int     tls_dh_min_bits;
   BOOL    tls_tempfail_tryclear;
   uschar *tls_verify_hosts;
   uschar *tls_try_verify_hosts;
-  #endif
-  #ifndef DISABLE_DKIM
-  uschar *dkim_domain;
-  uschar *dkim_private_key;
-  uschar *dkim_selector;
-  uschar *dkim_canon;
-  uschar *dkim_sign_headers;
-  uschar *dkim_strict;
-  #endif
-  #ifdef EXPERIMENTAL_TPDA
-  uschar *tpda_host_defer_action;
-  #endif
+  uschar *tls_verify_cert_hostnames;
+#endif
+#ifdef SUPPORT_I18N
+  uschar *utf8_downconvert;
+#endif
+#ifndef DISABLE_DKIM
+  struct ob_dkim dkim;
+#endif
+#ifdef EXPERIMENTAL_ARC
+  uschar *arc_sign;
+#endif
 } smtp_transport_options_block;
 
+#define SOB (smtp_transport_options_block *)
+
+
+/* smtp connect context */
+typedef struct {
+  uschar *             from_addr;
+  address_item *       addrlist;
+
+  smtp_connect_args    conn_args;
+  int                  port;
+
+  BOOL verify:1;
+  BOOL lmtp:1;
+  BOOL smtps:1;
+  BOOL ok:1;
+  BOOL setting_up:1;
+#ifdef EXPERIMENTAL_PIPE_CONNECT
+  BOOL early_pipe_ok:1;
+  BOOL early_pipe_active:1;
+#endif
+  BOOL esmtp:1;
+  BOOL esmtp_sent:1;
+  BOOL pipelining_used:1;
+#ifndef DISABLE_PRDR
+  BOOL prdr_active:1;
+#endif
+#ifdef SUPPORT_I18N
+  BOOL utf8_needed:1;
+#endif
+  BOOL dsn_all_lasthop:1;
+#if defined(SUPPORT_TLS) && defined(SUPPORT_DANE)
+  BOOL dane_required:1;
+#endif
+#ifdef EXPERIMENTAL_PIPE_CONNECT
+  BOOL pending_BANNER:1;
+  BOOL pending_EHLO:1;
+#endif
+  BOOL pending_MAIL:1;
+  BOOL pending_BDAT:1;
+  BOOL good_RCPT:1;
+  BOOL completed_addr:1;
+  BOOL send_rset:1;
+  BOOL send_quit:1;
+
+  int          max_rcpt;
+  int          cmd_count;
+
+  unsigned     peer_offered;
+  unsigned     avoid_option;
+  uschar *     igquotstr;
+  uschar *     helo_data;
+#ifdef EXPERIMENTAL_DSN_INFO
+  uschar *     smtp_greeting;
+  uschar *     helo_response;
+#endif
+#ifdef EXPERIMENTAL_PIPE_CONNECT
+  ehlo_resp_precis     ehlo_resp;
+#endif
+
+  address_item *       first_addr;
+  address_item *       next_addr;
+  address_item *       sync_addr;
+
+  client_conn_ctx      cctx;
+  smtp_inblock         inblock;
+  smtp_outblock                outblock;
+  uschar       buffer[DELIVER_BUFFER_SIZE];
+  uschar       inbuffer[4096];
+  uschar       outbuffer[4096];
+} smtp_context;
+
+extern int smtp_setup_conn(smtp_context *, BOOL);
+extern int smtp_write_mail_and_rcpt_cmds(smtp_context *, int *);
+extern int smtp_reap_early_pipe(smtp_context *, int *);
+
+
 /* Data for reading the private options. */
 
 extern optionlist smtp_transport_options[];
@@ -99,10 +195,12 @@ extern void smtp_transport_closedown(transport_instance *);
 
 
 
-extern int     smtp_auth(uschar *, unsigned, address_item *, host_item *,
-                smtp_transport_options_block *, BOOL,
-                smtp_inblock *, smtp_outblock *);
 extern BOOL    smtp_mail_auth_str(uschar *, unsigned,
                 address_item *, smtp_transport_options_block *);
 
+#ifdef SUPPORT_SOCKS
+extern int     socks_sock_connect(host_item *, int, int, uschar *,
+                transport_instance *, int);
+#endif
+
 /* End of transports/smtp.h */