X-Git-Url: https://vcs.fsf.org/?p=exim.git;a=blobdiff_plain;f=src%2Fsrc%2Fmacros.h;h=0ce24f8cb1ae84d8bd58bf7c225b3c4f624c6a96;hp=d25071aae1c8dd6ca827d5747dba01910c17a2bf;hb=ac881e2749754fbe167b5f38784dd85b088571cf;hpb=3e8abda0fa92b78c4a3dfbad940b12fc90c241e3 diff --git a/src/src/macros.h b/src/src/macros.h index d25071aae..0ce24f8cb 100644 --- a/src/src/macros.h +++ b/src/src/macros.h @@ -2,7 +2,7 @@ * Exim - an Internet mail transport agent * *************************************************/ -/* Copyright (c) University of Cambridge 1995 - 2012 */ +/* Copyright (c) University of Cambridge 1995 - 2015 */ /* See the file NOTICE for conditions of use and distribution. */ @@ -12,6 +12,9 @@ a string as a text string. This is sometimes useful for debugging output. */ #define mac_string(s) # s #define mac_expanded_string(s) mac_string(s) +/* Number of elements of an array */ +#define nelem(arr) (sizeof(arr) / sizeof(*arr)) + /* When running in the test harness, the load average is fudged. */ @@ -106,6 +109,13 @@ don't make the file descriptors two-way. */ #define DEBUG(x) if ((debug_selector & (x)) != 0) #define HDEBUG(x) if (host_checking || (debug_selector & (x)) != 0) +#define PTR_CHK(ptr) \ +do { \ +if ((void *)ptr > (void *)store_get(0)) \ + debug_printf("BUG: ptr '%s' beyond arena at %s:%d\n", \ + mac_expanded_string(ptr), __FUNCTION__, __LINE__); \ +} while(0) + /* The default From: text for DSNs */ #define DEFAULT_DSN_FROM "Mail Delivery System " @@ -149,13 +159,17 @@ into big_buffer_size and in some circumstances increased. It should be at least as long as the maximum path length. */ #if defined PATH_MAX && PATH_MAX > 16384 -#define BIG_BUFFER_SIZE PATH_MAX +# define BIG_BUFFER_SIZE PATH_MAX #elif defined MAXPATHLEN && MAXPATHLEN > 16384 -#define BIG_BUFFER_SIZE MAXPATHLEN +# define BIG_BUFFER_SIZE MAXPATHLEN #else -#define BIG_BUFFER_SIZE 16384 +# define BIG_BUFFER_SIZE 16384 #endif +/* header size of pipe content + currently: char id, char subid, char[5] length */ +#define PIPE_HEADER_SIZE 7 + /* This limits the length of data returned by local_scan(). Because it is written on the spool, it gets read into big_buffer. */ @@ -177,6 +191,14 @@ record. */ #define WAIT_NAME_MAX 50 +/* Wait this long before determining that a Proxy Protocol configured +host isn't speaking the protocol, and so is disallowed. Can be moved to +runtime configuration if per site settings become needed. */ +#ifdef EXPERIMENTAL_PROXY +#define PROXY_NEGOTIATION_TIMEOUT_SEC 3 +#define PROXY_NEGOTIATION_TIMEOUT_USEC 0 +#endif + /* Fixed option values for all PCRE functions */ #define PCRE_COPT 0 /* compile */ @@ -222,6 +244,9 @@ enum { ERRMESS_TOOMANYRECIP, /* Too many recipients */ ERRMESS_LOCAL_SCAN, /* Rejected by local scan */ ERRMESS_LOCAL_ACL /* Rejected by non-SMTP ACL */ +#ifdef EXPERIMENTAL_DMARC + ,ERRMESS_DMARC_FORENSIC /* DMARC Forensic Report */ +#endif }; /* Error handling styles - set by option, and apply only when receiving @@ -296,46 +321,84 @@ for having to swallow the rest of an SMTP message is whether the value is #define END_SIZE 4 /* Reading ended because message too big */ #define END_WERROR 5 /* Write error while reading the message */ -/* Options bits for debugging; D_v and D_local_scan are also in local_scan.h */ - -#define D_v 0x00000001 -#define D_local_scan 0x00000002 - -#define D_acl 0x00000004 -#define D_auth 0x00000008 -#define D_deliver 0x00000010 -#define D_dns 0x00000020 -#define D_dnsbl 0x00000040 -#define D_exec 0x00000080 -#define D_expand 0x00000100 -#define D_filter 0x00000200 -#define D_hints_lookup 0x00000400 -#define D_host_lookup 0x00000800 -#define D_ident 0x00001000 -#define D_interface 0x00002000 -#define D_lists 0x00004000 -#define D_load 0x00008000 -#define D_lookup 0x00010000 -#define D_memory 0x00020000 -#define D_pid 0x00040000 -#define D_process_info 0x00080000 -#define D_queue_run 0x00100000 -#define D_receive 0x00200000 -#define D_resolver 0x00400000 -#define D_retry 0x00800000 -#define D_rewrite 0x01000000 -#define D_route 0x02000000 -#define D_timestamp 0x04000000 -#define D_tls 0x08000000 -#define D_transport 0x10000000 -#define D_uid 0x20000000 -#define D_verify 0x40000000 - -/* The D_all value must always have all bits set, as it is recognized specially -by the function that decodes debug and log selectors. This is to enable it to -set all the bits in a multi-word selector. Debug doesn't use this yet, but we -are getting close. In fact, we want to omit "memory" for -d+all, but can't -handle this here. It is fudged externally. */ +/* Bit masks for debug and log selectors */ + +/* Assume words are 32 bits wide. Tiny waste of space on 64 bit +platforms, but this ensures bit vectors always work the same way. */ +#define BITWORDSIZE 32 + +/* This macro is for single-word bit vectors: the debug selector, +and the first word of the log selector. */ +#define BIT(n) (1 << (n)) + +/* And these are for multi-word vectors. */ +#define BITWORD(n) ( (n) / BITWORDSIZE) +#define BITMASK(n) (1 << (n) % BITWORDSIZE) + +#define BIT_CLEAR(s,z,n) ((s)[BITWORD(n)] &= ~BITMASK(n)) +#define BIT_SET(s,z,n) ((s)[BITWORD(n)] |= BITMASK(n)) +#define BIT_TEST(s,z,n) (((s)[BITWORD(n)] & BITMASK(n)) != 0) + +/* Used in globals.c for initializing bit_table structures. T will be either +D or L correspondong to the debug and log selector bits declared below. */ + +#define BIT_TABLE(T,name) { US #name, T##i_##name } + +/* IOTA allows us to keep an implicit sequential count, like a simple enum, +but we can have sequentially numbered identifiers which are not declared +sequentially. We use this for more compact declarations of bit indexes and +masks, alternating between sequential bit index and corresponding mask. */ + +#define IOTA(iota) (__LINE__ - iota) +#define IOTA_INIT(zero) (__LINE__ - zero + 1) + +/* Options bits for debugging. DEBUG_BIT() declares both a bit index and the +corresponding mask. Di_all is a special value recognized by decode_bits(). + +Exim's code assumes in a number of places that the debug_selector is one +word, and this is exposed in the local_scan ABI. The D_v and D_local_scan bit +masks are part of the local_scan API so are #defined in local_scan.h */ + +#define DEBUG_BIT(name) Di_##name = IOTA(Di_iota), D_##name = BIT(Di_##name) + +enum { + Di_all = -1, + Di_v = 0, + Di_local_scan = 1, + + Di_iota = IOTA_INIT(2), + DEBUG_BIT(acl), + DEBUG_BIT(auth), + DEBUG_BIT(deliver), + DEBUG_BIT(dns), + DEBUG_BIT(dnsbl), + DEBUG_BIT(exec), + DEBUG_BIT(expand), + DEBUG_BIT(filter), + DEBUG_BIT(hints_lookup), + DEBUG_BIT(host_lookup), + DEBUG_BIT(ident), + DEBUG_BIT(interface), + DEBUG_BIT(lists), + DEBUG_BIT(load), + DEBUG_BIT(lookup), + DEBUG_BIT(memory), + DEBUG_BIT(pid), + DEBUG_BIT(process_info), + DEBUG_BIT(queue_run), + DEBUG_BIT(receive), + DEBUG_BIT(resolver), + DEBUG_BIT(retry), + DEBUG_BIT(rewrite), + DEBUG_BIT(route), + DEBUG_BIT(timestamp), + DEBUG_BIT(tls), + DEBUG_BIT(transport), + DEBUG_BIT(uid), + DEBUG_BIT(verify), +}; + +/* Multi-bit debug masks */ #define D_all 0xffffffff @@ -355,76 +418,68 @@ handle this here. It is fudged externally. */ D_timestamp | \ D_resolver)) -/* Options bits for logging. Those that will end up in log_write_selector have -values < 0x80000000. They can be used in calls to log_write(). The others have -values > 0x80000000 and are put into log_extra_selector (without the top bit). -These are only ever tested independently. "All" is a magic value that is used -only in the name table to set all options in both bit maps. */ - -/* The L_all value must always have all bits set, as it is recognized specially -by the function that decodes debug and log selectors. This is to enable it to -set all the bits in a multi-word selector. */ - -#define L_all 0xffffffff - -#define L_address_rewrite 0x00000001 -#define L_all_parents 0x00000002 -#define L_connection_reject 0x00000004 -#define L_delay_delivery 0x00000008 -#define L_dnslist_defer 0x00000010 -#define L_etrn 0x00000020 -#define L_host_lookup_failed 0x00000040 -#define L_lost_incoming_connection 0x00000080 -#define L_queue_run 0x00000100 -#define L_retry_defer 0x00000200 -#define L_size_reject 0x00000400 -#define L_skip_delivery 0x00000800 -#define L_smtp_connection 0x00001000 -#define L_smtp_incomplete_transaction 0x00002000 -#define L_smtp_protocol_error 0x00004000 -#define L_smtp_syntax_error 0x00008000 - -#define LX_acl_warn_skipped 0x80000001 -#define LX_arguments 0x80000002 -#define LX_deliver_time 0x80000004 -#define LX_delivery_size 0x80000008 -#define LX_ident_timeout 0x80000010 -#define LX_incoming_interface 0x80000020 -#define LX_incoming_port 0x80000040 -#define LX_outgoing_port 0x80000080 -#define LX_pid 0x80000100 -#define LX_queue_time 0x80000200 -#define LX_queue_time_overall 0x80000400 -#define LX_received_sender 0x80000800 -#define LX_received_recipients 0x80001000 -#define LX_rejected_header 0x80002000 -#define LX_return_path_on_delivery 0x80004000 -#define LX_sender_on_delivery 0x80008000 -#define LX_sender_verify_fail 0x80010000 -#define LX_smtp_confirmation 0x80020000 -#define LX_smtp_no_mail 0x80040000 -#define LX_subject 0x80080000 -#define LX_tls_certificate_verified 0x80100000 -#define LX_tls_cipher 0x80200000 -#define LX_tls_peerdn 0x80400000 -#define LX_tls_sni 0x80800000 -#define LX_unknown_in_list 0x81000000 - -#define L_default (L_connection_reject | \ - L_delay_delivery | \ - L_dnslist_defer | \ - L_etrn | \ - L_host_lookup_failed | \ - L_lost_incoming_connection | \ - L_queue_run | \ - L_retry_defer | \ - L_size_reject | \ - L_skip_delivery) - -#define LX_default ((LX_acl_warn_skipped | \ - LX_rejected_header | \ - LX_sender_verify_fail | \ - LX_tls_cipher) & 0x7fffffff) +/* Options bits for logging. Those that have values < BITWORDSIZE can be used +in calls to log_write(). The others are put into later words in log_selector +and are only ever tested independently, so they do not need bit mask +declarations. The Li_all value is recognized specially by decode_bits(). */ + +#define LOG_BIT(name) Li_##name = IOTA(Li_iota), L_##name = BIT(Li_##name) + +enum { + Li_all = -1, + + Li_iota = IOTA_INIT(0), + LOG_BIT(address_rewrite), + LOG_BIT(all_parents), + LOG_BIT(connection_reject), + LOG_BIT(delay_delivery), + LOG_BIT(dnslist_defer), + LOG_BIT(etrn), + LOG_BIT(host_lookup_failed), + LOG_BIT(lost_incoming_connection), + LOG_BIT(queue_run), + LOG_BIT(retry_defer), + LOG_BIT(size_reject), + LOG_BIT(skip_delivery), + LOG_BIT(smtp_connection), + LOG_BIT(smtp_incomplete_transaction), + LOG_BIT(smtp_protocol_error), + LOG_BIT(smtp_syntax_error), + + Li_acl_warn_skipped = BITWORDSIZE, + Li_arguments, + Li_deliver_time, + Li_delivery_size, + Li_ident_timeout, + Li_incoming_interface, + Li_incoming_port, + Li_outgoing_port, + Li_pid, + Li_queue_time, + Li_queue_time_overall, + Li_received_sender, + Li_received_recipients, + Li_rejected_header, + Li_return_path_on_delivery, + Li_sender_on_delivery, + Li_sender_verify_fail, + Li_smtp_confirmation, + Li_smtp_no_mail, + Li_subject, + Li_tls_certificate_verified, + Li_tls_cipher, + Li_tls_peerdn, + Li_tls_sni, + Li_unknown_in_list, + Li_8bitmime, + Li_smtp_mailauth, + Li_proxy, + Li_outgoing_interface, + + log_selector_size = BITWORD(Li_outgoing_interface) + 1 +}; + +#define LOGGING(opt) BIT_TEST(log_selector, log_selector_size, Li_##opt) /* Private error numbers for delivery failures, set negative so as not to conflict with system errno values. */ @@ -460,7 +515,7 @@ to conflict with system errno values. */ #define ERRNO_UIDFAIL (-29) /* Failed to get uid */ #define ERRNO_BADTRANSPORT (-30) /* Unset or non-existent transport */ #define ERRNO_MBXLENGTH (-31) /* MBX length mismatch */ -#define ERRNO_UNKNOWNHOST (-32) /* Lookup failed in smtp transport */ +#define ERRNO_UNKNOWNHOST (-32) /* Lookup failed routing or in smtp tpt */ #define ERRNO_FORMATUNKNOWN (-33) /* Can't match format in appendfile */ #define ERRNO_BADCREATE (-34) /* Creation outside home in appendfile */ #define ERRNO_LISTDEFER (-35) /* Can't check a list; lookup defer */ @@ -475,6 +530,12 @@ to conflict with system errno values. */ #define ERRNO_RCPT4XX (-44) /* RCPT gave 4xx error */ #define ERRNO_MAIL4XX (-45) /* MAIL gave 4xx error */ #define ERRNO_DATA4XX (-46) /* DATA gave 4xx error */ +#define ERRNO_PROXYFAIL (-47) /* Negotiation failed for proxy configured host */ +#define ERRNO_AUTHPROB (-48) /* Authenticator "other" failure */ + +#ifdef EXPERIMENTAL_INTERNATIONAL +# define ERRNO_UTF8_FWD (-49) /* target not supporting SMTPUTF8 */ +#endif /* These must be last, so all retry deferments can easily be identified */ @@ -607,7 +668,7 @@ can be easily tested as a group. That is the only use of opt_bool_last. */ enum { opt_bit = 32, opt_bool_verify, opt_bool_set, opt_expand_bool, opt_bool_last, opt_rewrite, opt_timelist, opt_uid, opt_gid, opt_uidlist, opt_gidlist, - opt_expand_uid, opt_expand_gid, opt_void }; + opt_expand_uid, opt_expand_gid, opt_func, opt_void }; /* There's a high-ish bit which is used to flag duplicate options, kept for compatibility, which shouldn't be output. Also used for hidden options @@ -624,7 +685,9 @@ for booleans that are kept in one bit. */ #define opt_public 0x200 /* Stored in the main instance block */ #define opt_set 0x400 /* Option is set */ #define opt_secure 0x800 /* "hide" prefix used */ -#define opt_mask 0x0ff +#define opt_rep_con 0x1000 /* Can be appended to by a repeated line (condition) */ +#define opt_rep_str 0x2000 /* Can be appended to by a repeated line (string) */ +#define opt_mask 0x00ff /* Verify types when directing and routing */ @@ -770,6 +833,27 @@ enum { #define topt_no_body 0x040 /* Omit body */ #define topt_escape_headers 0x080 /* Apply escape check to headers */ +/* Flags for recipient_block, used in DSN support */ + +#define rf_dsnlasthop 0x01 /* Do not propagate DSN any further */ +#define rf_notify_never 0x02 /* NOTIFY= settings */ +#define rf_notify_success 0x04 +#define rf_notify_failure 0x08 +#define rf_notify_delay 0x10 + +#define rf_dsnflags (rf_notify_never | rf_notify_success | \ + rf_notify_failure | rf_notify_delay) + +/* DSN RET types */ + +#define dsn_ret_full 1 +#define dsn_ret_hdrs 2 + +#define dsn_support_unknown 0 +#define dsn_support_yes 1 +#define dsn_support_no 2 + + /* Codes for the host_find_failed and host_all_ignored options. */ #define hff_freeze 0 @@ -808,6 +892,9 @@ enum { ACL_WHERE_RCPT, /* Some controls are for RCPT only */ ACL_WHERE_MIME, /* ) implemented by <= WHERE_NOTSMTP */ ACL_WHERE_DKIM, /* ) */ ACL_WHERE_DATA, /* ) */ +#ifndef DISABLE_PRDR + ACL_WHERE_PRDR, /* ) */ +#endif ACL_WHERE_NOTSMTP, /* ) */ ACL_WHERE_AUTH, /* These remaining ones are not currently */ @@ -822,7 +909,8 @@ enum { ACL_WHERE_RCPT, /* Some controls are for RCPT only */ ACL_WHERE_STARTTLS, ACL_WHERE_VRFY, - ACL_WHERE_EXPANSION /* Currently used by a ${acl:name} expansion */ + ACL_WHERE_DELIVERY, + ACL_WHERE_UNKNOWN /* Currently used by a ${acl:name} expansion */ }; /* Situations for spool_write_header() */