* Exim - an Internet mail transport agent *
*************************************************/
+/* Copyright (c) The Exim Maintainers 2020 - 2022 */
/* Copyright (c) University of Cambridge 1995 - 2018 */
/* See the file NOTICE for conditions of use and distribution. */
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/* These two macros make it possible to obtain the result of macro-expanding
/* For almost all calls to convert things to printing characters, we want to
-allow tabs. A macro just makes life a bit easier. */
+allow tabs & spaces. A macro just makes life a bit easier. */
-#define string_printing(s) string_printing2((s), TRUE)
+#define string_printing(s) string_printing2((s), 0)
+#define SP_TAB BIT(0)
+#define SP_SPACE BIT(1)
/* We need a special return code for "no recipients and failed to send an error
((uschar)(c) > 127 && print_topbitchars))
-/* Convenience for testing strings */
-
-#define streqic(Foo, Bar) (strcmpic(Foo, Bar) == 0)
-
-
/* When built with TLS support, the act of flushing SMTP output becomes
a no-op once an SSL session is in progress. */
/* Debugging control */
+#define LOG_NAME_SIZE 256
#define DEBUG(x) if (debug_selector & (x))
-#define HDEBUG(x) if (host_checking || (debug_selector & (x)))
+#define HDEBUG(x) if (host_checking || debug_selector & (x))
/* The default From: text for DSNs */
verifying. This has to be explicit because it is referenced in more than one
source module. */
-#define ADDRESS_EXPANSIONS_COUNT 18
+#define ADDRESS_EXPANSIONS_COUNT 19
/* The maximum permitted number of command-line (-D) macro definitions. We
need a limit only to make it easier to generate argument vectors for re-exec
/* The size of the buffer holding the processing information string. */
-#define PROCESS_INFO_SIZE 256
+#define PROCESS_INFO_SIZE 384
/* The size of buffer to get for constructing log entries. Make it big
enough to hold all the headers from a normal kind of message. */
/* The size of the circular buffer that remembers recent SMTP commands */
#define SMTP_HBUFF_SIZE 20
+#define SMTP_HBUFF_PREV(n) ((n) ? (n)-1 : SMTP_HBUFF_SIZE-1)
/* The initial size of a big buffer for use in various places. It gets put
into big_buffer_size and in some circumstances increased. It should be at least
-as long as the maximum path length. */
+as long as the maximum path length PLUS room for string additions.
+Let's go with "at least twice as large as maximum path length".
+*/
+
+#ifdef AUTH_HEIMDAL_GSSAPI
+ /* RFC 4121 section 5.2, SHOULD support 64K input buffers */
+# define __BIG_BUFFER_SIZE 65536
+#else
+# define __BIG_BUFFER_SIZE 16384
+#endif
-#if defined PATH_MAX && PATH_MAX > 16384
-# define BIG_BUFFER_SIZE PATH_MAX
-#elif defined MAXPATHLEN && MAXPATHLEN > 16384
-# define BIG_BUFFER_SIZE MAXPATHLEN
+#ifndef PATH_MAX
+/* exim.h will have ensured this exists before including us. */
+# error headers confusion, PATH_MAX missing in macros.h
+#endif
+#if (PATH_MAX*2) > __BIG_BUFFER_SIZE
+# define BIG_BUFFER_SIZE (PATH_MAX*2)
#else
-# define BIG_BUFFER_SIZE 16384
+# define BIG_BUFFER_SIZE __BIG_BUFFER_SIZE
#endif
/* header size of pipe content
#define LOCAL_SCAN_MAX_RETURN (BIG_BUFFER_SIZE - 24)
-/* A limit to the length of an address. RFC 2821 limits the local part to 64
-and the domain to 255, so this should be adequate, taking into account quotings
-etc. */
-
-#define ADDRESS_MAXLENGTH 512
-
/* The length of the base names of spool files, which consist of an internal
message id with a trailing "-H" or "-D" added. */
#define SPOOL_NAME_LENGTH (MESSAGE_ID_LENGTH+2)
/* The maximum number of message ids to store in a waiting database
-record. */
+record, and the max number of continuation records allowed. */
#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 SUPPORT_PROXY
-#define PROXY_NEGOTIATION_TIMEOUT_SEC 3
-#define PROXY_NEGOTIATION_TIMEOUT_USEC 0
-#endif
+#define WAIT_CONT_MAX 1000
/* Fixed option values for all PCRE functions */
/* Macros for trivial functions */
-#define mac_ismsgid(s) \
- (pcre_exec(regex_ismsgid,NULL,CS s,Ustrlen(s),0,PCRE_EOPT,NULL,0) >= 0)
+#define mac_ismsgid(s) (regex_match(regex_ismsgid, (s), -1, NULL))
/* Options for dns_next_rr */
ERRMESS_TOOMANYRECIP, /* Too many recipients */
ERRMESS_LOCAL_SCAN, /* Rejected by local scan */
ERRMESS_LOCAL_ACL /* Rejected by non-SMTP ACL */
-#ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
,ERRMESS_DMARC_FORENSIC /* DMARC Forensic Report */
#endif
};
#define CANCELLED 13 /* Authentication cancelled */
#define FAIL_SEND 14 /* send() failed in authenticator */
#define FAIL_DROP 15 /* Fail and drop connection (used in ACL) */
+#define DANE 16 /* Deferred for domain mismatch (used in transport) */
/* Returns from the deliver_message() function */
#define DELIVER_MUA_FAILED 2 /* Failure when mua_wrapper is set */
#define DELIVER_NOT_ATTEMPTED 3 /* Not tried (no msg or is locked */
-/* Returns from DNS lookup functions. */
+/* Returns from DNS lookup functions. Use dns_rc_names[] for debug strings */
enum { DNS_SUCCEED, DNS_NOMATCH, DNS_NODATA, DNS_AGAIN, DNS_FAIL };
D_timestamp | \
D_resolver))
+/* Bits for debug triggers */
+
+enum {
+ DTi_panictrigger,
+ DTi_pretrigger,
+};
+
/* 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
Li_outgoing_port,
Li_pid,
Li_pipelining,
+ Li_protocol_detail,
Li_proxy,
Li_queue_time,
+ Li_queue_time_exclusive,
Li_queue_time_overall,
Li_receive_time,
Li_received_sender,
#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 SUPPORT_I18N
-# define ERRNO_UTF8_FWD (-49) /* target not supporting SMTPUTF8 */
-#endif
- /* -50 free for re-use */
+#define ERRNO_UTF8_FWD (-49) /* target not supporting SMTPUTF8 */
+#define ERRNO_HOST_IS_LOCAL (-50) /* Transport refuses to talk to localhost */
+#define ERRNO_TAINT (-51) /* Transport refuses to talk use tainted filename */
/* These must be last, so all retry deferments can easily be identified */
-#define ERRNO_RETRY_BASE (-51) /* Base to test against */
-#define ERRNO_RRETRY (-51) /* Not time for routing */
+#define ERRNO_RETRY_BASE (-52) /* Base to test against */
+#define ERRNO_RRETRY (-52) /* Not time for routing */
-#define ERRNO_WARN_BASE (-52) /* Base to test against */
-#define ERRNO_LRETRY (-52) /* Not time for local delivery */
-#define ERRNO_HRETRY (-53) /* Not time for any remote host */
-#define ERRNO_LOCAL_ONLY (-54) /* Local-only delivery */
-#define ERRNO_QUEUE_DOMAIN (-55) /* Domain in queue_domains */
-#define ERRNO_TRETRY (-56) /* Transport concurrency limit */
-#define ERRNO_EVENT (-57) /* Event processing request alternate response */
+#define ERRNO_WARN_BASE (-53) /* Base to test against */
+#define ERRNO_LRETRY (-53) /* Not time for local delivery */
+#define ERRNO_HRETRY (-54) /* Not time for any remote host */
+#define ERRNO_LOCAL_ONLY (-55) /* Local-only delivery */
+#define ERRNO_QUEUE_DOMAIN (-56) /* Domain in queue_domains */
+#define ERRNO_TRETRY (-57) /* Transport concurrency limit */
+#define ERRNO_EVENT (-58) /* Event processing request alternate response */
#define vopt_callout_recippmaster 0x0100 /* use postmaster to verify recip */
#define vopt_callout_hold 0x0200 /* lazy close connection */
#define vopt_success_on_redirect 0x0400
+#define vopt_quota 0x0800 /* quota check, to local/appendfile */
/* Values for fields in callout cache records */
enum { MSG_DELIVER, MSG_FREEZE, MSG_REMOVE, MSG_THAW, MSG_ADD_RECIPIENT,
MSG_MARK_ALL_DELIVERED, MSG_MARK_DELIVERED, MSG_EDIT_SENDER,
- MSG_SHOW_COPY, MSG_LOAD,
+ MSG_SHOW_COPY, MSG_LOAD, MSG_SETQUEUE,
/* These ones must be last: a test for >= MSG_SHOW_BODY is used
to test for actions that list individual spool files. */
MSG_SHOW_BODY, MSG_SHOW_HEADER, MSG_SHOW_LOG };
/* Options for transport_write_message */
-#define topt_add_return_path 0x001
-#define topt_add_delivery_date 0x002
-#define topt_add_envelope_to 0x004
-#define topt_use_crlf 0x008 /* Terminate lines with CRLF */
-#define topt_end_dot 0x010 /* Send terminating dot line */
-#define topt_no_headers 0x020 /* Omit headers */
-#define topt_no_body 0x040 /* Omit body */
-#define topt_escape_headers 0x080 /* Apply escape check to headers */
-#define topt_use_bdat 0x100 /* prepend chunks with RFC3030 BDAT header */
-#define topt_output_string 0x200 /* create string rather than write to fd */
-#define topt_continuation 0x400 /* do not reset buffer */
-#define topt_not_socket 0x800 /* cannot do socket-only syscalls */
+#define topt_add_return_path 0x0001
+#define topt_add_delivery_date 0x0002
+#define topt_add_envelope_to 0x0004
+#define topt_escape_headers 0x0008 /* Apply escape check to headers */
+#define topt_use_crlf 0x0010 /* Terminate lines with CRLF */
+#define topt_no_headers 0x0020 /* Omit headers */
+#define topt_no_body 0x0040 /* Omit body */
+#define topt_end_dot 0x0080 /* Send terminating dot line */
+#define topt_no_flush 0x0100 /* more data expected after message (eg QUIT) */
+#define topt_use_bdat 0x0200 /* prepend chunks with RFC3030 BDAT header */
+#define topt_output_string 0x0400 /* create string rather than write to fd */
+#define topt_continuation 0x0800 /* do not reset buffer */
+#define topt_not_socket 0x1000 /* cannot do socket-only syscalls */
/* Options for smtp_write_command */
-enum {
+enum {
SCMD_FLUSH = 0, /* write to kernel */
SCMD_MORE, /* write to kernel, but likely more soon */
SCMD_BUFFER /* stash in application cmd output buffer */
#define ACL_BIT_MIME BIT(ACL_WHERE_MIME)
#define ACL_BIT_DKIM BIT(ACL_WHERE_DKIM)
#define ACL_BIT_DATA BIT(ACL_WHERE_DATA)
-#ifndef DISABLE_PRDR
+#ifdef DISABLE_PRDR
+# define ACL_BIT_PRDR 0
+#else
# define ACL_BIT_PRDR BIT(ACL_WHERE_PRDR)
#endif
#define ACL_BIT_NOTSMTP BIT(ACL_WHERE_NOTSMTP)
#define ACL_BIT_DELIVERY BIT(ACL_WHERE_DELIVERY)
#define ACL_BIT_UNKNOWN BIT(ACL_WHERE_UNKNOWN)
+#define ACL_BITS_HAVEDATA (ACL_BIT_MIME | ACL_BIT_DKIM | ACL_BIT_DATA \
+ | ACL_BIT_PRDR \
+ | ACL_BIT_NOTSMTP | ACL_BIT_QUIT | ACL_BIT_NOTQUIT)
+
/* Situations for spool_write_header() */
/* Options on tls_close */
-#define TLS_NO_SHUTDOWN 0
-#define TLS_SHUTDOWN_NOWAIT 1
-#define TLS_SHUTDOWN_WAIT 2
+#define TLS_NO_SHUTDOWN 0 /* Just forget the context */
+#define TLS_SHUTDOWN_NOWAIT 1 /* Send alert; do not wait */
+#define TLS_SHUTDOWN_WAIT 2 /* Send alert & wait for peer's alert */
+#define TLS_SHUTDOWN_WONLY 3 /* only wait for peer's alert */
#ifdef COMPILE_UTILITY
#define AUTHS_REGEX US"\\n250[\\s\\-]AUTH\\s+([\\-\\w \\t]+)(?:\\n|$)"
-#define EARLY_PIPE_FEATURE_NAME "X_PIPE_CONNECT"
-#define EARLY_PIPE_FEATURE_LEN 14
+#define EARLY_PIPE_FEATURE_NAME "PIPECONNECT"
+#define EARLY_PIPE_FEATURE_LEN 11
/* Flags for auth_client_item() */
#define SVFMT_TAINT_NOCHK BIT(2)
+#define NOTIFIER_SOCKET_NAME "exim_daemon_notify"
+/* Notify message types */
+#define NOTIFY_MSG_QRUN 1
+#define NOTIFY_QUEUE_SIZE_REQ 2
+#define NOTIFY_REGEX 3
+
+/* Flags for match_check_string() */
+typedef unsigned mcs_flags;
+#define MCS_NOFLAGS 0
+#define MCS_PARTIAL BIT(0) /* permit partial- search types */
+#define MCS_CASELESS BIT(1) /* caseless matching where possible */
+#define MCS_AT_SPECIAL BIT(2) /* recognize @, @[], etc. */
+#define MCS_CACHEABLE BIT(3) /* no dynamic expansions used for pattern */
+
/* End of macros.h */
git://git.exim.org / exim.git / blobdiff