-/* $Cambridge: exim/src/src/acl.c,v 1.42 2005/07/23 20:46:42 tom Exp $ */
+/* $Cambridge: exim/src/src/acl.c,v 1.87 2009/11/16 19:50:36 nm4 Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2005 */
+/* Copyright (c) University of Cambridge 1995 - 2009 */
/* See the file NOTICE for conditions of use and distribution. */
/* Code for handling Access Control Lists (ACLs) */
{ US"accept", US"defer", US"deny", US"discard", US"drop", US"require",
US"warn" };
-/* For each verb, the condition for which "message" is used */
-
-static int msgcond[] = { FAIL, OK, OK, FAIL, OK, FAIL, OK };
+/* For each verb, the conditions for which "message" or "log_message" are used
+are held as a bitmap. This is to avoid expanding the strings unnecessarily. For
+"accept", the FAIL case is used only after "endpass", but that is selected in
+the code. */
+
+static int msgcond[] = {
+ (1<<OK) | (1<<FAIL) | (1<<FAIL_DROP), /* accept */
+ (1<<OK), /* defer */
+ (1<<OK), /* deny */
+ (1<<OK) | (1<<FAIL) | (1<<FAIL_DROP), /* discard */
+ (1<<OK), /* drop */
+ (1<<FAIL) | (1<<FAIL_DROP), /* require */
+ (1<<OK) /* warn */
+ };
/* ACL condition and modifier codes - keep in step with the table that
-follows. */
+follows, and the cond_expand_at_top and uschar cond_modifiers tables lower
+down. */
-enum { ACLC_ACL, ACLC_AUTHENTICATED,
+enum { ACLC_ACL,
+ ACLC_ADD_HEADER,
+ ACLC_AUTHENTICATED,
#ifdef EXPERIMENTAL_BRIGHTMAIL
ACLC_BMI_OPTIN,
#endif
-ACLC_CONDITION, ACLC_CONTROL,
+ ACLC_CONDITION,
+ ACLC_CONTINUE,
+ ACLC_CONTROL,
+#ifdef EXPERIMENTAL_DCC
+ ACLC_DCC,
+#endif
#ifdef WITH_CONTENT_SCAN
ACLC_DECODE,
#endif
#ifdef WITH_OLD_DEMIME
ACLC_DEMIME,
#endif
-#ifdef EXPERIMENTAL_DOMAINKEYS
- ACLC_DK_DOMAIN_SOURCE,
- ACLC_DK_POLICY,
- ACLC_DK_SENDER_DOMAINS,
- ACLC_DK_SENDER_LOCAL_PARTS,
- ACLC_DK_SENDERS,
- ACLC_DK_STATUS,
-#endif
- ACLC_DNSLISTS, ACLC_DOMAINS, ACLC_ENCRYPTED, ACLC_ENDPASS,
- ACLC_HOSTS, ACLC_LOCAL_PARTS, ACLC_LOG_MESSAGE, ACLC_LOGWRITE,
+#ifndef DISABLE_DKIM
+ ACLC_DKIM_SIGNER,
+ ACLC_DKIM_STATUS,
+#endif
+ ACLC_DNSLISTS,
+ ACLC_DOMAINS,
+ ACLC_ENCRYPTED,
+ ACLC_ENDPASS,
+ ACLC_HOSTS,
+ ACLC_LOCAL_PARTS,
+ ACLC_LOG_MESSAGE,
+ ACLC_LOG_REJECT_TARGET,
+ ACLC_LOGWRITE,
#ifdef WITH_CONTENT_SCAN
ACLC_MALWARE,
#endif
#ifdef WITH_CONTENT_SCAN
ACLC_REGEX,
#endif
- ACLC_SENDER_DOMAINS, ACLC_SENDERS, ACLC_SET,
+ ACLC_SENDER_DOMAINS,
+ ACLC_SENDERS,
+ ACLC_SET,
#ifdef WITH_CONTENT_SCAN
ACLC_SPAM,
#endif
#ifdef EXPERIMENTAL_SPF
ACLC_SPF,
+ ACLC_SPF_GUESS,
#endif
ACLC_VERIFY };
-/* ACL conditions/modifiers: "delay", "control", "endpass", "message",
-"log_message", "logwrite", and "set" are modifiers that look like conditions
-but always return TRUE. They are used for their side effects. */
+/* ACL conditions/modifiers: "delay", "control", "continue", "endpass",
+"message", "log_message", "log_reject_target", "logwrite", and "set" are
+modifiers that look like conditions but always return TRUE. They are used for
+their side effects. */
static uschar *conditions[] = {
US"acl",
+ US"add_header",
US"authenticated",
#ifdef EXPERIMENTAL_BRIGHTMAIL
US"bmi_optin",
#endif
US"condition",
+ US"continue",
US"control",
+#ifdef EXPERIMENTAL_DCC
+ US"dcc",
+#endif
#ifdef WITH_CONTENT_SCAN
US"decode",
#endif
#ifdef WITH_OLD_DEMIME
US"demime",
#endif
-#ifdef EXPERIMENTAL_DOMAINKEYS
- US"dk_domain_source",
- US"dk_policy",
- US"dk_sender_domains",
- US"dk_sender_local_parts",
- US"dk_senders",
- US"dk_status",
-#endif
- US"dnslists", US"domains", US"encrypted",
- US"endpass", US"hosts", US"local_parts", US"log_message", US"logwrite",
+#ifndef DISABLE_DKIM
+ US"dkim_signers",
+ US"dkim_status",
+#endif
+ US"dnslists",
+ US"domains",
+ US"encrypted",
+ US"endpass",
+ US"hosts",
+ US"local_parts",
+ US"log_message",
+ US"log_reject_target",
+ US"logwrite",
#ifdef WITH_CONTENT_SCAN
US"malware",
#endif
#endif
#ifdef EXPERIMENTAL_SPF
US"spf",
+ US"spf_guess",
#endif
US"verify" };
that follows! */
enum {
-#ifdef EXPERIMENTAL_BRIGHTMAIL
+ CONTROL_AUTH_UNADVERTISED,
+ #ifdef EXPERIMENTAL_BRIGHTMAIL
CONTROL_BMI_RUN,
-#endif
-#ifdef EXPERIMENTAL_DOMAINKEYS
- CONTROL_DK_VERIFY,
-#endif
- CONTROL_ERROR, CONTROL_CASEFUL_LOCAL_PART, CONTROL_CASELOWER_LOCAL_PART,
- CONTROL_ENFORCE_SYNC, CONTROL_NO_ENFORCE_SYNC, CONTROL_FREEZE,
- CONTROL_QUEUE_ONLY, CONTROL_SUBMISSION,
-#ifdef WITH_CONTENT_SCAN
+ #endif
+ #ifndef DISABLE_DKIM
+ CONTROL_DKIM_VERIFY,
+ #endif
+ CONTROL_ERROR,
+ CONTROL_CASEFUL_LOCAL_PART,
+ CONTROL_CASELOWER_LOCAL_PART,
+ CONTROL_ENFORCE_SYNC,
+ CONTROL_NO_ENFORCE_SYNC,
+ CONTROL_FREEZE,
+ CONTROL_QUEUE_ONLY,
+ CONTROL_SUBMISSION,
+ CONTROL_SUPPRESS_LOCAL_FIXUPS,
+ #ifdef WITH_CONTENT_SCAN
CONTROL_NO_MBOX_UNSPOOL,
-#endif
- CONTROL_FAKEDEFER, CONTROL_FAKEREJECT, CONTROL_NO_MULTILINE };
+ #endif
+ CONTROL_FAKEDEFER,
+ CONTROL_FAKEREJECT,
+ CONTROL_NO_MULTILINE,
+ CONTROL_NO_PIPELINING,
+ CONTROL_NO_DELAY_FLUSH,
+ CONTROL_NO_CALLOUT_FLUSH
+};
-/* ACL control names; keep in step with the table above! */
+/* ACL control names; keep in step with the table above! This list is used for
+turning ids into names. The actual list of recognized names is in the variable
+control_def controls_list[] below. The fact that there are two lists is a mess
+and should be tidied up. */
static uschar *controls[] = {
+ US"allow_auth_unadvertised",
#ifdef EXPERIMENTAL_BRIGHTMAIL
US"bmi_run",
#endif
- #ifdef EXPERIMENTAL_DOMAINKEYS
- US"dk_verify",
+ #ifndef DISABLE_DKIM
+ US"dkim_disable_verify",
#endif
- US"error", US"caseful_local_part",
- US"caselower_local_part", US"enforce_sync", US"no_enforce_sync", US"freeze",
- US"queue_only", US"submission",
+ US"error",
+ US"caseful_local_part",
+ US"caselower_local_part",
+ US"enforce_sync",
+ US"no_enforce_sync",
+ US"freeze",
+ US"queue_only",
+ US"submission",
+ US"suppress_local_fixups",
#ifdef WITH_CONTENT_SCAN
US"no_mbox_unspool",
#endif
- US"no_multiline"};
+ US"fakedefer",
+ US"fakereject",
+ US"no_multiline_responses",
+ US"no_pipelining",
+ US"no_delay_flush",
+ US"no_callout_flush"
+};
-/* Flags to indicate for which conditions /modifiers a string expansion is done
+/* Flags to indicate for which conditions/modifiers a string expansion is done
at the outer level. In the other cases, expansion already occurs in the
checking functions. */
static uschar cond_expand_at_top[] = {
TRUE, /* acl */
+ TRUE, /* add_header */
FALSE, /* authenticated */
#ifdef EXPERIMENTAL_BRIGHTMAIL
TRUE, /* bmi_optin */
#endif
TRUE, /* condition */
+ TRUE, /* continue */
TRUE, /* control */
+#ifdef EXPERIMENTAL_DCC
+ TRUE, /* dcc */
+#endif
#ifdef WITH_CONTENT_SCAN
TRUE, /* decode */
#endif
#ifdef WITH_OLD_DEMIME
TRUE, /* demime */
#endif
-#ifdef EXPERIMENTAL_DOMAINKEYS
- TRUE, /* dk_domain_source */
- TRUE, /* dk_policy */
- TRUE, /* dk_sender_domains */
- TRUE, /* dk_sender_local_parts */
- TRUE, /* dk_senders */
- TRUE, /* dk_status */
+#ifndef DISABLE_DKIM
+ TRUE, /* dkim_signers */
+ TRUE, /* dkim_status */
#endif
TRUE, /* dnslists */
FALSE, /* domains */
FALSE, /* hosts */
FALSE, /* local_parts */
TRUE, /* log_message */
+ TRUE, /* log_reject_target */
TRUE, /* logwrite */
#ifdef WITH_CONTENT_SCAN
TRUE, /* malware */
#endif
#ifdef EXPERIMENTAL_SPF
TRUE, /* spf */
+ TRUE, /* spf_guess */
#endif
TRUE /* verify */
};
static uschar cond_modifiers[] = {
FALSE, /* acl */
+ TRUE, /* add_header */
FALSE, /* authenticated */
#ifdef EXPERIMENTAL_BRIGHTMAIL
TRUE, /* bmi_optin */
#endif
FALSE, /* condition */
+ TRUE, /* continue */
TRUE, /* control */
+#ifdef EXPERIMENTAL_DCC
+ FALSE, /* dcc */
+#endif
#ifdef WITH_CONTENT_SCAN
FALSE, /* decode */
#endif
#ifdef WITH_OLD_DEMIME
FALSE, /* demime */
#endif
-#ifdef EXPERIMENTAL_DOMAINKEYS
- FALSE, /* dk_domain_source */
- FALSE, /* dk_policy */
- FALSE, /* dk_sender_domains */
- FALSE, /* dk_sender_local_parts */
- FALSE, /* dk_senders */
- FALSE, /* dk_status */
+#ifndef DISABLE_DKIM
+ FALSE, /* dkim_signers */
+ FALSE, /* dkim_status */
#endif
FALSE, /* dnslists */
FALSE, /* domains */
FALSE, /* hosts */
FALSE, /* local_parts */
TRUE, /* log_message */
+ TRUE, /* log_reject_target */
TRUE, /* logwrite */
#ifdef WITH_CONTENT_SCAN
FALSE, /* malware */
#endif
#ifdef EXPERIMENTAL_SPF
FALSE, /* spf */
+ FALSE, /* spf_guess */
#endif
FALSE /* verify */
};
-/* Bit map vector of which conditions are not allowed at certain times. For
-each condition, there's a bitmap of dis-allowed times. For some, it is easier
-to specify the negation of a small number of allowed times. */
+/* Bit map vector of which conditions and modifiers are not allowed at certain
+times. For each condition and modifier, there's a bitmap of dis-allowed times.
+For some, it is easier to specify the negation of a small number of allowed
+times. */
static unsigned int cond_forbids[] = {
0, /* acl */
- (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_CONNECT)| /* authenticated */
- (1<<ACL_WHERE_HELO),
+ (unsigned int)
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* add_header */
+ (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+ (1<<ACL_WHERE_MIME)|(1<<ACL_WHERE_NOTSMTP)|
+ (1<<ACL_WHERE_DKIM)|
+ (1<<ACL_WHERE_NOTSMTP_START)),
-#ifdef EXPERIMENTAL_BRIGHTMAIL
+ (1<<ACL_WHERE_NOTSMTP)| /* authenticated */
+ (1<<ACL_WHERE_NOTSMTP_START)|
+ (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO),
+
+ #ifdef EXPERIMENTAL_BRIGHTMAIL
(1<<ACL_WHERE_AUTH)| /* bmi_optin */
(1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)|
(1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_MIME)|
(1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
(1<<ACL_WHERE_MAILAUTH)|
(1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_STARTTLS)|
- (1<<ACL_WHERE_VRFY)|(1<<ACL_WHERE_PREDATA),
-#endif
+ (1<<ACL_WHERE_VRFY)|(1<<ACL_WHERE_PREDATA)|
+ (1<<ACL_WHERE_NOTSMTP_START),
+ #endif
0, /* condition */
+ 0, /* continue */
+
/* Certain types of control are always allowed, so we let it through
always and check in the control processing itself. */
0, /* control */
-#ifdef WITH_CONTENT_SCAN
+ #ifdef EXPERIMENTAL_DCC
+ (unsigned int)
+ ~((1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)), /* dcc */
+ #endif
+
+ #ifdef WITH_CONTENT_SCAN
(unsigned int)
~(1<<ACL_WHERE_MIME), /* decode */
-#endif
+ #endif
- 0, /* delay */
+ (1<<ACL_WHERE_NOTQUIT), /* delay */
-#ifdef WITH_OLD_DEMIME
+ #ifdef WITH_OLD_DEMIME
(unsigned int)
~((1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)), /* demime */
-#endif
-
-#ifdef EXPERIMENTAL_DOMAINKEYS
- (1<<ACL_WHERE_AUTH)| /* dk_domain_source */
- (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)|
- (1<<ACL_WHERE_RCPT)|(1<<ACL_WHERE_PREDATA)|
- (1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
- (1<<ACL_WHERE_MAILAUTH)|(1<<ACL_WHERE_QUIT)|
- (1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_STARTTLS)|
- (1<<ACL_WHERE_VRFY),
-
- (1<<ACL_WHERE_AUTH)| /* dk_policy */
- (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)|
- (1<<ACL_WHERE_RCPT)|(1<<ACL_WHERE_PREDATA)|
- (1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
- (1<<ACL_WHERE_MAILAUTH)|(1<<ACL_WHERE_QUIT)|
- (1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_STARTTLS)|
- (1<<ACL_WHERE_VRFY),
-
- (1<<ACL_WHERE_AUTH)| /* dk_sender_domains */
- (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)|
- (1<<ACL_WHERE_RCPT)|(1<<ACL_WHERE_PREDATA)|
- (1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
- (1<<ACL_WHERE_MAILAUTH)|(1<<ACL_WHERE_QUIT)|
- (1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_STARTTLS)|
- (1<<ACL_WHERE_VRFY),
-
- (1<<ACL_WHERE_AUTH)| /* dk_sender_local_parts */
- (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)|
- (1<<ACL_WHERE_RCPT)|(1<<ACL_WHERE_PREDATA)|
- (1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
- (1<<ACL_WHERE_MAILAUTH)|(1<<ACL_WHERE_QUIT)|
- (1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_STARTTLS)|
- (1<<ACL_WHERE_VRFY),
+ #endif
- (1<<ACL_WHERE_AUTH)| /* dk_senders */
- (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)|
- (1<<ACL_WHERE_RCPT)|(1<<ACL_WHERE_PREDATA)|
- (1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
- (1<<ACL_WHERE_MAILAUTH)|(1<<ACL_WHERE_QUIT)|
- (1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_STARTTLS)|
- (1<<ACL_WHERE_VRFY),
+ #ifndef DISABLE_DKIM
+ (unsigned int)
+ ~(1<<ACL_WHERE_DKIM), /* dkim_signers */
- (1<<ACL_WHERE_AUTH)| /* dk_status */
- (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)|
- (1<<ACL_WHERE_RCPT)|(1<<ACL_WHERE_PREDATA)|
- (1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
- (1<<ACL_WHERE_MAILAUTH)|(1<<ACL_WHERE_QUIT)|
- (1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_STARTTLS)|
- (1<<ACL_WHERE_VRFY),
-#endif
+ (unsigned int)
+ ~(1<<ACL_WHERE_DKIM), /* dkim_status */
+ #endif
- (1<<ACL_WHERE_NOTSMTP), /* dnslists */
+ (1<<ACL_WHERE_NOTSMTP)| /* dnslists */
+ (1<<ACL_WHERE_NOTSMTP_START),
(unsigned int)
~(1<<ACL_WHERE_RCPT), /* domains */
- (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_CONNECT)| /* encrypted */
+ (1<<ACL_WHERE_NOTSMTP)| /* encrypted */
+ (1<<ACL_WHERE_CONNECT)|
+ (1<<ACL_WHERE_NOTSMTP_START)|
(1<<ACL_WHERE_HELO),
0, /* endpass */
- (1<<ACL_WHERE_NOTSMTP), /* hosts */
+ (1<<ACL_WHERE_NOTSMTP)| /* hosts */
+ (1<<ACL_WHERE_NOTSMTP_START),
(unsigned int)
~(1<<ACL_WHERE_RCPT), /* local_parts */
0, /* log_message */
+ 0, /* log_reject_target */
+
0, /* logwrite */
-#ifdef WITH_CONTENT_SCAN
+ #ifdef WITH_CONTENT_SCAN
(unsigned int)
~((1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)), /* malware */
-#endif
+ #endif
0, /* message */
-#ifdef WITH_CONTENT_SCAN
+ #ifdef WITH_CONTENT_SCAN
(unsigned int)
~(1<<ACL_WHERE_MIME), /* mime_regex */
-#endif
+ #endif
0, /* ratelimit */
(unsigned int)
~(1<<ACL_WHERE_RCPT), /* recipients */
-#ifdef WITH_CONTENT_SCAN
+ #ifdef WITH_CONTENT_SCAN
(unsigned int)
~((1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)| /* regex */
(1<<ACL_WHERE_MIME)),
-#endif
+ #endif
(1<<ACL_WHERE_AUTH)|(1<<ACL_WHERE_CONNECT)| /* sender_domains */
(1<<ACL_WHERE_HELO)|
0, /* set */
-#ifdef WITH_CONTENT_SCAN
+ #ifdef WITH_CONTENT_SCAN
(unsigned int)
~((1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)), /* spam */
-#endif
+ #endif
-#ifdef EXPERIMENTAL_SPF
+ #ifdef EXPERIMENTAL_SPF
(1<<ACL_WHERE_AUTH)|(1<<ACL_WHERE_CONNECT)| /* spf */
(1<<ACL_WHERE_HELO)|
(1<<ACL_WHERE_MAILAUTH)|
(1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
- (1<<ACL_WHERE_STARTTLS)|(1<<ACL_WHERE_VRFY),
-#endif
+ (1<<ACL_WHERE_STARTTLS)|(1<<ACL_WHERE_VRFY)|
+ (1<<ACL_WHERE_NOTSMTP)|
+ (1<<ACL_WHERE_NOTSMTP_START),
+
+ (1<<ACL_WHERE_AUTH)|(1<<ACL_WHERE_CONNECT)| /* spf_guess */
+ (1<<ACL_WHERE_HELO)|
+ (1<<ACL_WHERE_MAILAUTH)|
+ (1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
+ (1<<ACL_WHERE_STARTTLS)|(1<<ACL_WHERE_VRFY)|
+ (1<<ACL_WHERE_NOTSMTP)|
+ (1<<ACL_WHERE_NOTSMTP_START),
+ #endif
/* Certain types of verify are always allowed, so we let it through
always and check in the verify function itself */
specify the negation of a small number of allowed times. */
static unsigned int control_forbids[] = {
-#ifdef EXPERIMENTAL_BRIGHTMAIL
+ (unsigned int)
+ ~((1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)), /* allow_auth_unadvertised */
+
+ #ifdef EXPERIMENTAL_BRIGHTMAIL
0, /* bmi_run */
-#endif
-#ifdef EXPERIMENTAL_DOMAINKEYS
- (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP), /* dk_verify */
-#endif
+ #endif
+
+ #ifndef DISABLE_DKIM
+ (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)| /* dkim_disable_verify */
+ (1<<ACL_WHERE_NOTSMTP_START),
+ #endif
0, /* error */
(unsigned int)
~(1<<ACL_WHERE_RCPT), /* caselower_local_part */
- (1<<ACL_WHERE_NOTSMTP), /* enforce_sync */
+ (1<<ACL_WHERE_NOTSMTP)| /* enforce_sync */
+ (1<<ACL_WHERE_NOTSMTP_START),
- (1<<ACL_WHERE_NOTSMTP), /* no_enforce_sync */
+ (1<<ACL_WHERE_NOTSMTP)| /* no_enforce_sync */
+ (1<<ACL_WHERE_NOTSMTP_START),
(unsigned int)
~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* freeze */
~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* submission */
(1<<ACL_WHERE_PREDATA)),
-#ifdef WITH_CONTENT_SCAN
+ (unsigned int)
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* suppress_local_fixups */
+ (1<<ACL_WHERE_PREDATA)|
+ (1<<ACL_WHERE_NOTSMTP_START)),
+
+ #ifdef WITH_CONTENT_SCAN
(unsigned int)
~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* no_mbox_unspool */
(1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
(1<<ACL_WHERE_MIME)),
-#endif
+ #endif
(unsigned int)
~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* fakedefer */
(1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
(1<<ACL_WHERE_MIME)),
- (1<<ACL_WHERE_NOTSMTP) /* no_multiline */
+ (1<<ACL_WHERE_NOTSMTP)| /* no_multiline */
+ (1<<ACL_WHERE_NOTSMTP_START),
+
+ (1<<ACL_WHERE_NOTSMTP)| /* no_pipelining */
+ (1<<ACL_WHERE_NOTSMTP_START),
+
+ (1<<ACL_WHERE_NOTSMTP)| /* no_delay_flush */
+ (1<<ACL_WHERE_NOTSMTP_START),
+
+ (1<<ACL_WHERE_NOTSMTP)| /* no_callout_flush */
+ (1<<ACL_WHERE_NOTSMTP_START)
};
/* Structure listing various control arguments, with their characteristics. */
} control_def;
static control_def controls_list[] = {
+ { US"allow_auth_unadvertised", CONTROL_AUTH_UNADVERTISED, FALSE },
#ifdef EXPERIMENTAL_BRIGHTMAIL
- { US"bmi_run", CONTROL_BMI_RUN, FALSE},
-#endif
-#ifdef EXPERIMENTAL_DOMAINKEYS
- { US"dk_verify", CONTROL_DK_VERIFY, FALSE},
-#endif
- { US"caseful_local_part", CONTROL_CASEFUL_LOCAL_PART, FALSE},
- { US"caselower_local_part", CONTROL_CASELOWER_LOCAL_PART, FALSE},
- { US"enforce_sync", CONTROL_ENFORCE_SYNC, FALSE},
- { US"freeze", CONTROL_FREEZE, FALSE},
- { US"no_enforce_sync", CONTROL_NO_ENFORCE_SYNC, FALSE},
- { US"no_multiline_responses", CONTROL_NO_MULTILINE, FALSE},
- { US"queue_only", CONTROL_QUEUE_ONLY, FALSE},
+ { US"bmi_run", CONTROL_BMI_RUN, FALSE },
+#endif
+#ifndef DISABLE_DKIM
+ { US"dkim_disable_verify", CONTROL_DKIM_VERIFY, FALSE },
+#endif
+ { US"caseful_local_part", CONTROL_CASEFUL_LOCAL_PART, FALSE },
+ { US"caselower_local_part", CONTROL_CASELOWER_LOCAL_PART, FALSE },
+ { US"enforce_sync", CONTROL_ENFORCE_SYNC, FALSE },
+ { US"freeze", CONTROL_FREEZE, TRUE },
+ { US"no_callout_flush", CONTROL_NO_CALLOUT_FLUSH, FALSE },
+ { US"no_delay_flush", CONTROL_NO_DELAY_FLUSH, FALSE },
+ { US"no_enforce_sync", CONTROL_NO_ENFORCE_SYNC, FALSE },
+ { US"no_multiline_responses", CONTROL_NO_MULTILINE, FALSE },
+ { US"no_pipelining", CONTROL_NO_PIPELINING, FALSE },
+ { US"queue_only", CONTROL_QUEUE_ONLY, FALSE },
#ifdef WITH_CONTENT_SCAN
- { US"no_mbox_unspool", CONTROL_NO_MBOX_UNSPOOL, FALSE},
+ { US"no_mbox_unspool", CONTROL_NO_MBOX_UNSPOOL, FALSE },
#endif
- { US"fakedefer", CONTROL_FAKEDEFER, TRUE},
- { US"fakereject", CONTROL_FAKEREJECT, TRUE},
- { US"submission", CONTROL_SUBMISSION, TRUE}
+ { US"fakedefer", CONTROL_FAKEDEFER, TRUE },
+ { US"fakereject", CONTROL_FAKEREJECT, TRUE },
+ { US"submission", CONTROL_SUBMISSION, TRUE },
+ { US"suppress_local_fixups", CONTROL_SUPPRESS_LOCAL_FIXUPS, FALSE }
};
/* Support data structures for Client SMTP Authorization. acl_verify_csa()
can be started by a name, or by a macro definition. */
s = readconf_readname(name, sizeof(name), s);
- if (*s == ':' || isupper(name[0] && *s == '=')) return yield;
+ if (*s == ':' || (isupper(name[0]) && *s == '=')) return yield;
/* If a verb is unrecognized, it may be another condition or modifier that
continues the previous verb. */
{
if (this == NULL)
{
- *error = string_sprintf("unknown ACL verb in \"%s\"", saveline);
+ *error = string_sprintf("unknown ACL verb \"%s\" in \"%s\"", name,
+ saveline);
return NULL;
}
}
/* The "set" modifier is different in that its argument is "name=value"
rather than just a value, and we can check the validity of the name, which
- gives us a variable number to insert into the data block. */
+ gives us a variable name to insert into the data block. The original ACL
+ variable names were acl_c0 ... acl_c9 and acl_m0 ... acl_m9. This was
+ extended to 20 of each type, but after that people successfully argued for
+ arbitrary names. In the new scheme, the names must start with acl_c or acl_m.
+ After that, we allow alphanumerics and underscores, but the first character
+ after c or m must be a digit or an underscore. This retains backwards
+ compatibility. */
if (c == ACLC_SET)
{
- if (Ustrncmp(s, "acl_", 4) != 0 || (s[4] != 'c' && s[4] != 'm') ||
- !isdigit(s[5]) || (!isspace(s[6]) && s[6] != '='))
+ uschar *endptr;
+
+ if (Ustrncmp(s, "acl_c", 5) != 0 &&
+ Ustrncmp(s, "acl_m", 5) != 0)
{
- *error = string_sprintf("unrecognized name after \"set\" in ACL "
- "modifier \"set %s\"", s);
+ *error = string_sprintf("invalid variable name after \"set\" in ACL "
+ "modifier \"set %s\" (must start \"acl_c\" or \"acl_m\")", s);
return NULL;
}
- cond->u.varnumber = s[5] - '0';
- if (s[4] == 'm') cond->u.varnumber += ACL_C_MAX;
- s += 6;
+ endptr = s + 5;
+ if (!isdigit(*endptr) && *endptr != '_')
+ {
+ *error = string_sprintf("invalid variable name after \"set\" in ACL "
+ "modifier \"set %s\" (digit or underscore must follow acl_c or acl_m)",
+ s);
+ return NULL;
+ }
+
+ while (*endptr != 0 && *endptr != '=' && !isspace(*endptr))
+ {
+ if (!isalnum(*endptr) && *endptr != '_')
+ {
+ *error = string_sprintf("invalid character \"%c\" in variable name "
+ "in ACL modifier \"set %s\"", *endptr, s);
+ return NULL;
+ }
+ endptr++;
+ }
+
+ cond->u.varname = string_copyn(s + 4, endptr - s - 4);
+ s = endptr;
while (isspace(*s)) s++;
}
+/*************************************************
+* Set up added header line(s) *
+*************************************************/
+
+/* This function is called by the add_header modifier, and also from acl_warn()
+to implement the now-deprecated way of adding header lines using "message" on a
+"warn" verb. The argument is treated as a sequence of header lines which are
+added to a chain, provided there isn't an identical one already there.
+
+Argument: string of header lines
+Returns: nothing
+*/
+
+static void
+setup_header(uschar *hstring)
+{
+uschar *p, *q;
+int hlen = Ustrlen(hstring);
+
+/* An empty string does nothing; otherwise add a final newline if necessary. */
+
+if (hlen <= 0) return;
+if (hstring[hlen-1] != '\n') hstring = string_sprintf("%s\n", hstring);
+
+/* Loop for multiple header lines, taking care about continuations */
+
+for (p = q = hstring; *p != 0; )
+ {
+ uschar *s;
+ int newtype = htype_add_bot;
+ header_line **hptr = &acl_added_headers;
+
+ /* Find next header line within the string */
+
+ for (;;)
+ {
+ q = Ustrchr(q, '\n');
+ if (*(++q) != ' ' && *q != '\t') break;
+ }
+
+ /* If the line starts with a colon, interpret the instruction for where to
+ add it. This temporarily sets up a new type. */
+
+ if (*p == ':')
+ {
+ if (strncmpic(p, US":after_received:", 16) == 0)
+ {
+ newtype = htype_add_rec;
+ p += 16;
+ }
+ else if (strncmpic(p, US":at_start_rfc:", 14) == 0)
+ {
+ newtype = htype_add_rfc;
+ p += 14;
+ }
+ else if (strncmpic(p, US":at_start:", 10) == 0)
+ {
+ newtype = htype_add_top;
+ p += 10;
+ }
+ else if (strncmpic(p, US":at_end:", 8) == 0)
+ {
+ newtype = htype_add_bot;
+ p += 8;
+ }
+ while (*p == ' ' || *p == '\t') p++;
+ }
+
+ /* See if this line starts with a header name, and if not, add X-ACL-Warn:
+ to the front of it. */
+
+ for (s = p; s < q - 1; s++)
+ {
+ if (*s == ':' || !isgraph(*s)) break;
+ }
+
+ s = string_sprintf("%s%.*s", (*s == ':')? "" : "X-ACL-Warn: ", q - p, p);
+ hlen = Ustrlen(s);
+
+ /* See if this line has already been added */
+
+ while (*hptr != NULL)
+ {
+ if (Ustrncmp((*hptr)->text, s, hlen) == 0) break;
+ hptr = &((*hptr)->next);
+ }
+
+ /* Add if not previously present */
+
+ if (*hptr == NULL)
+ {
+ header_line *h = store_get(sizeof(header_line));
+ h->text = s;
+ h->next = NULL;
+ h->type = newtype;
+ h->slen = hlen;
+ *hptr = h;
+ hptr = &(h->next);
+ }
+
+ /* Advance for next header line within the string */
+
+ p = q;
+ }
+}
+
+
+
+
/*************************************************
* Handle warnings *
*************************************************/
the message's headers, and/or writes information to the log. In each case, this
only happens once (per message for headers, per connection for log).
+** NOTE: The header adding action using the "message" setting is historic, and
+its use is now deprecated. The new add_header modifier should be used instead.
+
Arguments:
where ACL_WHERE_xxxx indicating which ACL this is
user_message message for adding to headers
static void
acl_warn(int where, uschar *user_message, uschar *log_message)
{
-int hlen;
-
if (log_message != NULL && log_message != user_message)
{
uschar *text;
return;
}
-/* Treat the user message as a sequence of one or more header lines. */
-
-hlen = Ustrlen(user_message);
-if (hlen > 0)
- {
- uschar *text, *p, *q;
-
- /* Add a final newline if not present */
-
- text = ((user_message)[hlen-1] == '\n')? user_message :
- string_sprintf("%s\n", user_message);
-
- /* Loop for multiple header lines, taking care about continuations */
-
- for (p = q = text; *p != 0; )
- {
- uschar *s;
- int newtype = htype_add_bot;
- header_line **hptr = &acl_warn_headers;
-
- /* Find next header line within the string */
-
- for (;;)
- {
- q = Ustrchr(q, '\n');
- if (*(++q) != ' ' && *q != '\t') break;
- }
-
- /* If the line starts with a colon, interpret the instruction for where to
- add it. This temporarily sets up a new type. */
-
- if (*p == ':')
- {
- if (strncmpic(p, US":after_received:", 16) == 0)
- {
- newtype = htype_add_rec;
- p += 16;
- }
- else if (strncmpic(p, US":at_start_rfc:", 14) == 0)
- {
- newtype = htype_add_rfc;
- p += 14;
- }
- else if (strncmpic(p, US":at_start:", 10) == 0)
- {
- newtype = htype_add_top;
- p += 10;
- }
- else if (strncmpic(p, US":at_end:", 8) == 0)
- {
- newtype = htype_add_bot;
- p += 8;
- }
- while (*p == ' ' || *p == '\t') p++;
- }
-
- /* See if this line starts with a header name, and if not, add X-ACL-Warn:
- to the front of it. */
-
- for (s = p; s < q - 1; s++)
- {
- if (*s == ':' || !isgraph(*s)) break;
- }
-
- s = string_sprintf("%s%.*s", (*s == ':')? "" : "X-ACL-Warn: ", q - p, p);
- hlen = Ustrlen(s);
+/* The code for setting up header lines is now abstracted into a separate
+function so that it can be used for the add_header modifier as well. */
- /* See if this line has already been added */
-
- while (*hptr != NULL)
- {
- if (Ustrncmp((*hptr)->text, s, hlen) == 0) break;
- hptr = &((*hptr)->next);
- }
-
- /* Add if not previously present */
-
- if (*hptr == NULL)
- {
- header_line *h = store_get(sizeof(header_line));
- h->text = s;
- h->next = NULL;
- h->type = newtype;
- h->slen = hlen;
- *hptr = h;
- hptr = &(h->next);
- }
-
- /* Advance for next header line within the string */
-
- p = q;
- }
- }
+setup_header(user_message);
}
address literals, but it's probably the most friendly thing to do. This is an
extension to CSA, so we allow it to be turned off for proper conformance. */
-if (string_is_ip_address(domain, NULL))
+if (string_is_ip_address(domain, NULL) != 0)
{
if (!dns_csa_use_reverse) return CSA_UNKNOWN;
dns_build_reverse(domain, target);
return FAIL;
}
-/* We can test the result of optional HELO verification */
+/* We can test the result of optional HELO verification that might have
+occurred earlier. If not, we can attempt the verification now. */
if (strcmpic(ss, US"helo") == 0)
{
if (slash != NULL) goto NO_OPTIONS;
+ if (!helo_verified && !helo_verify_failed) smtp_verify_helo();
return helo_verified? OK : FAIL;
}
if (strcmpic(ss, US"header_syntax") == 0)
{
if (slash != NULL) goto NO_OPTIONS;
- if (where != ACL_WHERE_DATA && where != ACL_WHERE_NOTSMTP)
- {
- *log_msgptr = string_sprintf("cannot check header contents in ACL for %s "
- "(only possible in ACL for DATA)", acl_wherenames[where]);
- return ERROR;
- }
+ if (where != ACL_WHERE_DATA && where != ACL_WHERE_NOTSMTP) goto WRONG_ACL;
rc = verify_check_headers(log_msgptr);
if (rc != OK && smtp_return_error_details && *log_msgptr != NULL)
*user_msgptr = string_sprintf("Rejected after DATA: %s", *log_msgptr);
return rc;
}
+/* Check that no recipient of this message is "blind", that is, every envelope
+recipient must be mentioned in either To: or Cc:. */
+
+if (strcmpic(ss, US"not_blind") == 0)
+ {
+ if (slash != NULL) goto NO_OPTIONS;
+ if (where != ACL_WHERE_DATA && where != ACL_WHERE_NOTSMTP) goto WRONG_ACL;
+ rc = verify_check_notblind();
+ if (rc != OK)
+ {
+ *log_msgptr = string_sprintf("bcc recipient detected");
+ if (smtp_return_error_details)
+ *user_msgptr = string_sprintf("Rejected after DATA: %s", *log_msgptr);
+ }
+ return rc;
+ }
/* The remaining verification tests check recipient and sender addresses,
either from the envelope or from the header. There are a number of
if (strcmpic(ss, US"header_sender") == 0)
{
- if (where != ACL_WHERE_DATA && where != ACL_WHERE_NOTSMTP)
- {
- *log_msgptr = string_sprintf("cannot check header contents in ACL for %s "
- "(only possible in ACL for DATA)", acl_wherenames[where]);
- return ERROR;
- }
+ if (where != ACL_WHERE_DATA && where != ACL_WHERE_NOTSMTP) goto WRONG_ACL;
verify_header_sender = TRUE;
}
callout_overall, callout_connect, se_mailfrom, pm_mailfrom, NULL);
HDEBUG(D_acl) debug_printf("----------- end verify ------------\n");
+ *basic_errno = addr2.basic_errno;
*log_msgptr = addr2.message;
*user_msgptr = (addr2.user_message != NULL)?
addr2.user_message : addr2.message;
- *basic_errno = addr2.basic_errno;
+
+ /* Allow details for temporary error if the address is so flagged. */
+ if (testflag((&addr2), af_pass_message)) acl_temp_details = TRUE;
/* Make $address_data visible */
deliver_address_data = addr2.p.address_data;
*log_msgptr = string_sprintf("unexpected '/' found in \"%s\" "
"(this verify item has no options)", arg);
return ERROR;
+
+/* Calls in the wrong ACL come here */
+
+WRONG_ACL:
+*log_msgptr = string_sprintf("cannot check header contents in ACL for %s "
+ "(only possible in ACL for DATA)", acl_wherenames[where]);
+return ERROR;
}
Arguments:
arg the option string for ratelimit=
+ where ACL_WHERE_xxxx indicating which ACL this is
log_msgptr for error messages
Returns: OK - Sender's rate is above limit
*/
static int
-acl_ratelimit(uschar *arg, uschar **log_msgptr)
+acl_ratelimit(uschar *arg, int where, uschar **log_msgptr)
{
double limit, period;
-uschar *ss, *key;
+uschar *ss;
+uschar *key = NULL;
int sep = '/';
-BOOL have_key = FALSE, leaky = FALSE, strict = FALSE;
+BOOL leaky = FALSE, strict = FALSE, noupdate = FALSE;
BOOL per_byte = FALSE, per_cmd = FALSE, per_conn = FALSE, per_mail = FALSE;
int old_pool, rc;
tree_node **anchor, *t;
return ERROR;
}
-/* We use the rest of the argument list following the limit as the
-lookup key, because it doesn't make sense to use the same stored data
-if the period or options are different. */
-
-key = arg;
-
/* Second is the rate measurement period and exponential smoothing time
constant. This must be strictly greater than zero, because zero leads to
run-time division errors. */
{
if (strcmpic(ss, US"leaky") == 0) leaky = TRUE;
else if (strcmpic(ss, US"strict") == 0) strict = TRUE;
+ else if (strcmpic(ss, US"noupdate") == 0) noupdate = TRUE;
else if (strcmpic(ss, US"per_byte") == 0) per_byte = TRUE;
- else if (strcmpic(ss, US"per_cmd") == 0) per_cmd = TRUE;
+ else if (strcmpic(ss, US"per_cmd") == 0) per_cmd = TRUE;
+ else if (strcmpic(ss, US"per_rcpt") == 0) per_cmd = TRUE; /* alias */
else if (strcmpic(ss, US"per_conn") == 0) per_conn = TRUE;
else if (strcmpic(ss, US"per_mail") == 0) per_mail = TRUE;
- else if (strcmpic(ss, US"per_rcpt") == 0) per_cmd = TRUE; /* alias */
- else have_key = TRUE;
+ else key = string_sprintf("%s", ss);
}
+
if (leaky + strict > 1 || per_byte + per_cmd + per_conn + per_mail > 1)
{
*log_msgptr = US"conflicting options for \"ratelimit\" condition";
}
/* Default option values */
+
if (!strict) leaky = TRUE;
if (!per_byte && !per_cmd && !per_conn) per_mail = TRUE;
-/* If there is no explicit key, use the sender_host_address. If there is no
-sender_host_address (e.g. -bs or acl_not_smtp) then we simply omit it. */
+/* Create the lookup key. If there is no explicit key, use sender_host_address.
+If there is no sender_host_address (e.g. -bs or acl_not_smtp) then we simply
+omit it. The smoothing constant (sender_rate_period) and the per_xxx options
+are added to the key because they alter the meaning of the stored data. */
-if (!have_key && sender_host_address != NULL)
- key = string_sprintf("%s / %s", key, sender_host_address);
+if (key == NULL)
+ key = (sender_host_address == NULL)? US"" : sender_host_address;
+
+key = string_sprintf("%s/%s/%s/%s",
+ sender_rate_period,
+ per_byte? US"per_byte" :
+ per_cmd? US"per_cmd" :
+ per_mail? US"per_mail" : US"per_conn",
+ strict? US"strict" : US"leaky",
+ key);
HDEBUG(D_acl) debug_printf("ratelimit condition limit=%.0f period=%.0f key=%s\n",
limit, period, key);
-/* See if we have already computed the rate by looking in the relevant tree. For
-per-connection rate limiting, store tree nodes and dbdata in the permanent pool
-so that they survive across resets. */
+/* See if we have already computed the rate by looking in the relevant tree.
+For per-connection rate limiting, store tree nodes and dbdata in the permanent
+pool so that they survive across resets. */
anchor = NULL;
old_pool = store_pool;
{
dbd = t->data.ptr;
/* The following few lines duplicate some of the code below. */
- if (dbd->rate < limit) rc = FAIL;
- else rc = OK;
+ rc = (dbd->rate < limit)? FAIL : OK;
store_pool = old_pool;
sender_rate = string_sprintf("%.1f", dbd->rate);
HDEBUG(D_acl)
}
/* We aren't using a pre-computed rate, so get a previously recorded
-rate from the database, update it, and write it back. If there's no
-previous rate for this key, create one. */
+rate from the database, update it, and write it back when required. If there's
+no previous rate for this key, create one. */
dbm = dbfn_open(US"ratelimit", O_RDWR, &dbblock, TRUE);
if (dbm == NULL)
+ (double)tv.tv_usec / 1000000.0;
double prev_time = (double)dbd->time_stamp
+ (double)dbd->time_usec / 1000000.0;
- double interval = this_time - prev_time;
-
- double i_over_p = interval / period;
- double a = exp(-i_over_p);
/* We must avoid division by zero, and deal gracefully with the clock going
backwards. If we blunder ahead when time is in reverse then the computed
- rate will become bogusly huge. Clamp i/p to a very small number instead. */
+ rate will be bogus. To be safe we clamp interval to a very small number. */
- if (i_over_p <= 0.0) i_over_p = 1e-9;
+ double interval = this_time - prev_time <= 0.0 ? 1e-9
+ : this_time - prev_time;
+
+ double i_over_p = interval / period;
+ double a = exp(-i_over_p);
dbd->time_stamp = tv.tv_sec;
dbd->time_usec = tv.tv_usec;
if (per_byte)
dbd->rate = (message_size < 0 ? 0.0 : (double)message_size)
* (1 - a) / i_over_p + a * dbd->rate;
+ else if (per_cmd && where == ACL_WHERE_NOTSMTP)
+ dbd->rate = (double)recipients_count
+ * (1 - a) / i_over_p + a * dbd->rate;
else
dbd->rate = (1 - a) / i_over_p + a * dbd->rate;
}
the initial rate of 0.0) when the rate limit is zero (i.e. the client should
be completely blocked). */
-if (dbd->rate < limit) rc = FAIL;
- else rc = OK;
+rc = (dbd->rate < limit)? FAIL : OK;
/* Update the state if the rate is low or if we are being strict. If we
are in leaky mode and the sender's rate is too high, we do not update
the recorded rate in order to avoid an over-aggressive sender's retry
-rate preventing them from getting any email through. */
+rate preventing them from getting any email through. If noupdate is set,
+do not do any updates. */
-if (rc == FAIL || !leaky)
+if ((rc == FAIL || !leaky) && !noupdate)
+ {
dbfn_write(dbm, key, dbd, sizeof(dbdata_ratelimit));
+ HDEBUG(D_acl) debug_printf("ratelimit db updated\n");
+ }
+else
+ {
+ HDEBUG(D_acl) debug_printf("ratelimit db not updated: %s\n",
+ noupdate? "noupdate set" : "over the limit, but leaky");
+ }
+
dbfn_close(dbm);
/* Store the result in the tree for future reference, if necessary. */
-if (anchor != NULL)
+if (anchor != NULL && !noupdate)
{
t = store_get(sizeof(tree_node) + Ustrlen(key));
t->data.ptr = dbd;
{
uschar *user_message = NULL;
uschar *log_message = NULL;
-uschar *p;
+uschar *p = NULL;
int rc = OK;
#ifdef WITH_CONTENT_SCAN
int sep = '/';
if (cb->type == ACLC_SET)
{
- int n = cb->u.varnumber;
- int t = (n < ACL_C_MAX)? 'c' : 'm';
- if (n >= ACL_C_MAX) n -= ACL_C_MAX;
- debug_printf("acl_%c%d ", t, n);
- lhswidth += 7;
+ debug_printf("acl_%s ", cb->u.varname);
+ lhswidth += 5 + Ustrlen(cb->u.varname);
}
debug_printf("= %s\n", cb->arg);
switch(cb->type)
{
+ case ACLC_ADD_HEADER:
+ setup_header(arg);
+ break;
+
/* A nested ACL that returns "discard" makes sense only for an "accept" or
"discard" verb. */
TRUE, NULL);
break;
-#ifdef EXPERIMENTAL_BRIGHTMAIL
+ #ifdef EXPERIMENTAL_BRIGHTMAIL
case ACLC_BMI_OPTIN:
{
int old_pool = store_pool;
store_pool = old_pool;
}
break;
-#endif
+ #endif
case ACLC_CONDITION:
+ /* The true/false parsing here should be kept in sync with that used in
+ expand.c when dealing with ECOND_BOOL so that we don't have too many
+ different definitions of what can be a boolean. */
if (Ustrspn(arg, "0123456789") == Ustrlen(arg)) /* Digits, or empty */
rc = (Uatoi(arg) == 0)? FAIL : OK;
else
*log_msgptr = string_sprintf("invalid \"condition\" value \"%s\"", arg);
break;
+ case ACLC_CONTINUE: /* Always succeeds */
+ break;
+
case ACLC_CONTROL:
control_type = decode_control(arg, &p, where, log_msgptr);
switch(control_type)
{
-#ifdef EXPERIMENTAL_BRIGHTMAIL
+ case CONTROL_AUTH_UNADVERTISED:
+ allow_auth_unadvertised = TRUE;
+ break;
+
+ #ifdef EXPERIMENTAL_BRIGHTMAIL
case CONTROL_BMI_RUN:
bmi_run = 1;
break;
-#endif
-#ifdef EXPERIMENTAL_DOMAINKEYS
- case CONTROL_DK_VERIFY:
- dk_do_verify = 1;
+ #endif
+
+ #ifndef DISABLE_DKIM
+ case CONTROL_DKIM_VERIFY:
+ dkim_disable_verify = TRUE;
break;
-#endif
+ #endif
+
case CONTROL_ERROR:
return ERROR;
smtp_enforce_sync = FALSE;
break;
-#ifdef WITH_CONTENT_SCAN
+ #ifdef WITH_CONTENT_SCAN
case CONTROL_NO_MBOX_UNSPOOL:
no_mbox_unspool = TRUE;
break;
-#endif
+ #endif
case CONTROL_NO_MULTILINE:
no_multiline_responses = TRUE;
break;
+ case CONTROL_NO_PIPELINING:
+ pipelining_enable = FALSE;
+ break;
+
+ case CONTROL_NO_DELAY_FLUSH:
+ disable_delay_flush = TRUE;
+ break;
+
+ case CONTROL_NO_CALLOUT_FLUSH:
+ disable_callout_flush = TRUE;
+ break;
+
case CONTROL_FAKEDEFER:
case CONTROL_FAKEREJECT:
fake_response = (control_type == CONTROL_FAKEDEFER) ? DEFER : FAIL;
case CONTROL_FREEZE:
deliver_freeze = TRUE;
deliver_frozen_at = time(NULL);
+ freeze_tell = freeze_tell_config; /* Reset to configured value */
+ if (Ustrncmp(p, "/no_tell", 8) == 0)
+ {
+ p += 8;
+ freeze_tell = NULL;
+ }
+ if (*p != 0)
+ {
+ *log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
+ return ERROR;
+ }
break;
case CONTROL_QUEUE_ONLY:
submission_domain = string_copyn(p+8, pp-p-8);
p = pp;
}
+ /* The name= option must be last, because it swallows the rest of
+ the string. */
else if (Ustrncmp(p, "/name=", 6) == 0)
{
uschar *pp = p + 6;
- while (*pp != 0 && *pp != '/') pp++;
- originator_name = string_copy(parse_fix_phrase(p+6, pp-p-6,
+ while (*pp != 0) pp++;
+ submission_name = string_copy(parse_fix_phrase(p+6, pp-p-6,
big_buffer, big_buffer_size));
p = pp;
}
return ERROR;
}
break;
+
+ case CONTROL_SUPPRESS_LOCAL_FIXUPS:
+ suppress_local_fixups = TRUE;
+ break;
}
break;
-#ifdef WITH_CONTENT_SCAN
+ #ifdef EXPERIMENTAL_DCC
+ case ACLC_DCC:
+ {
+ /* Seperate the regular expression and any optional parameters. */
+ uschar *ss = string_nextinlist(&arg, &sep, big_buffer, big_buffer_size);
+ /* Run the dcc backend. */
+ rc = dcc_process(&ss);
+ /* Modify return code based upon the existance of options. */
+ while ((ss = string_nextinlist(&arg, &sep, big_buffer, big_buffer_size))
+ != NULL) {
+ if (strcmpic(ss, US"defer_ok") == 0 && rc == DEFER)
+ {
+ /* FAIL so that the message is passed to the next ACL */
+ rc = FAIL;
+ }
+ }
+ }
+ break;
+ #endif
+
+ #ifdef WITH_CONTENT_SCAN
case ACLC_DECODE:
rc = mime_decode(&arg);
break;
-#endif
+ #endif
case ACLC_DELAY:
{
can't. The poll() function does not do the right thing, and in any case
it is not always available.
- NOTE: If ever this state of affairs changes, remember that we may be
+ NOTE 1: If ever this state of affairs changes, remember that we may be
dealing with stdin/stdout here, in addition to TCP/IP connections.
- Whatever is done must work in both cases. To detected the stdin/stdout
- case, check for smtp_in or smtp_out being NULL. */
+ Also, delays may be specified for non-SMTP input, where smtp_out and
+ smtp_in will be NULL. Whatever is done must work in all cases.
+
+ NOTE 2: The added feature of flushing the output before a delay must
+ apply only to SMTP input. Hence the test for smtp_out being non-NULL.
+ */
else
{
+ if (smtp_out != NULL && !disable_delay_flush) mac_smtp_fflush();
while (delay > 0) delay = sleep(delay);
}
}
}
break;
-#ifdef WITH_OLD_DEMIME
+ #ifdef WITH_OLD_DEMIME
case ACLC_DEMIME:
rc = demime(&arg);
break;
-#endif
+ #endif
-#ifdef EXPERIMENTAL_DOMAINKEYS
- case ACLC_DK_DOMAIN_SOURCE:
- if (dk_verify_block == NULL) { rc = FAIL; break; };
- /* check header source of domain against given string */
- switch (dk_verify_block->address_source) {
- case DK_EXIM_ADDRESS_FROM_FROM:
- rc = match_isinlist(US"from", &arg, 0, NULL,
- NULL, MCL_STRING, TRUE, NULL);
- break;
- case DK_EXIM_ADDRESS_FROM_SENDER:
- rc = match_isinlist(US"sender", &arg, 0, NULL,
- NULL, MCL_STRING, TRUE, NULL);
- break;
- case DK_EXIM_ADDRESS_NONE:
- rc = match_isinlist(US"none", &arg, 0, NULL,
- NULL, MCL_STRING, TRUE, NULL);
- break;
- }
- break;
- case ACLC_DK_POLICY:
- if (dk_verify_block == NULL) { rc = FAIL; break; };
- /* check policy against given string, default FAIL */
- rc = FAIL;
- if (dk_verify_block->signsall)
- rc = match_isinlist(US"signsall", &arg, 0, NULL,
- NULL, MCL_STRING, TRUE, NULL);
- if (dk_verify_block->testing)
- rc = match_isinlist(US"testing", &arg, 0, NULL,
- NULL, MCL_STRING, TRUE, NULL);
- break;
- case ACLC_DK_SENDER_DOMAINS:
- if (dk_verify_block == NULL) { rc = FAIL; break; };
- if (dk_verify_block->domain != NULL)
- rc = match_isinlist(dk_verify_block->domain, &arg, 0, &domainlist_anchor,
- NULL, MCL_DOMAIN, TRUE, NULL);
- else rc = FAIL;
- break;
- case ACLC_DK_SENDER_LOCAL_PARTS:
- if (dk_verify_block == NULL) { rc = FAIL; break; };
- if (dk_verify_block->local_part != NULL)
- rc = match_isinlist(dk_verify_block->local_part, &arg, 0, &localpartlist_anchor,
- NULL, MCL_LOCALPART, TRUE, NULL);
- else rc = FAIL;
- break;
- case ACLC_DK_SENDERS:
- if (dk_verify_block == NULL) { rc = FAIL; break; };
- if (dk_verify_block->address != NULL)
- rc = match_address_list(dk_verify_block->address, TRUE, TRUE, &arg, NULL, -1, 0, NULL);
- else rc = FAIL;
- break;
- case ACLC_DK_STATUS:
- if (dk_verify_block == NULL) { rc = FAIL; break; };
- if (dk_verify_block->result > 0) {
- switch(dk_verify_block->result) {
- case DK_EXIM_RESULT_BAD_FORMAT:
- rc = match_isinlist(US"bad format", &arg, 0, NULL,
- NULL, MCL_STRING, TRUE, NULL);
- break;
- case DK_EXIM_RESULT_NO_KEY:
- rc = match_isinlist(US"no key", &arg, 0, NULL,
- NULL, MCL_STRING, TRUE, NULL);
- break;
- case DK_EXIM_RESULT_NO_SIGNATURE:
- rc = match_isinlist(US"no signature", &arg, 0, NULL,
- NULL, MCL_STRING, TRUE, NULL);
- break;
- case DK_EXIM_RESULT_REVOKED:
- rc = match_isinlist(US"revoked", &arg, 0, NULL,
- NULL, MCL_STRING, TRUE, NULL);
- break;
- case DK_EXIM_RESULT_NON_PARTICIPANT:
- rc = match_isinlist(US"non-participant", &arg, 0, NULL,
- NULL, MCL_STRING, TRUE, NULL);
- break;
- case DK_EXIM_RESULT_GOOD:
- rc = match_isinlist(US"good", &arg, 0, NULL,
- NULL, MCL_STRING, TRUE, NULL);
- break;
- case DK_EXIM_RESULT_BAD:
- rc = match_isinlist(US"bad", &arg, 0, NULL,
- NULL, MCL_STRING, TRUE, NULL);
- break;
- }
- }
- break;
-#endif
+ #ifndef DISABLE_DKIM
+ case ACLC_DKIM_SIGNER:
+ if (dkim_cur_signer != NULL)
+ rc = match_isinlist(dkim_cur_signer,
+ &arg,0,NULL,NULL,MCL_STRING,TRUE,NULL);
+ else
+ rc = FAIL;
+ break;
+
+ case ACLC_DKIM_STATUS:
+ rc = match_isinlist(dkim_exim_expand_query(DKIM_VERIFY_STATUS),
+ &arg,0,NULL,NULL,MCL_STRING,TRUE,NULL);
+ break;
+ #endif
case ACLC_DNSLISTS:
rc = verify_check_dnsbl(&arg);
&deliver_localpart_data);
break;
+ case ACLC_LOG_REJECT_TARGET:
+ {
+ int logbits = 0;
+ int sep = 0;
+ uschar *s = arg;
+ uschar *ss;
+ while ((ss = string_nextinlist(&s, &sep, big_buffer, big_buffer_size))
+ != NULL)
+ {
+ if (Ustrcmp(ss, "main") == 0) logbits |= LOG_MAIN;
+ else if (Ustrcmp(ss, "panic") == 0) logbits |= LOG_PANIC;
+ else if (Ustrcmp(ss, "reject") == 0) logbits |= LOG_REJECT;
+ else
+ {
+ logbits |= LOG_MAIN|LOG_REJECT;
+ log_write(0, LOG_MAIN|LOG_PANIC, "unknown log name \"%s\" in "
+ "\"log_reject_target\" in %s ACL", ss, acl_wherenames[where]);
+ }
+ }
+ log_reject_target = logbits;
+ }
+ break;
+
case ACLC_LOGWRITE:
{
int logbits = 0;
s++;
}
while (isspace(*s)) s++;
+
+
if (logbits == 0) logbits = LOG_MAIN;
log_write(0, logbits, "%s", string_printing(s));
}
break;
-#ifdef WITH_CONTENT_SCAN
+ #ifdef WITH_CONTENT_SCAN
case ACLC_MALWARE:
{
- /* Seperate the regular expression and any optional parameters. */
+ /* Separate the regular expression and any optional parameters. */
uschar *ss = string_nextinlist(&arg, &sep, big_buffer, big_buffer_size);
/* Run the malware backend. */
rc = malware(&ss);
break;
case ACLC_MIME_REGEX:
- rc = mime_regex(&arg);
+ rc = mime_regex(&arg);
break;
-#endif
+ #endif
case ACLC_RATELIMIT:
- rc = acl_ratelimit(arg, log_msgptr);
+ rc = acl_ratelimit(arg, where, log_msgptr);
break;
case ACLC_RECIPIENTS:
&recipient_data);
break;
-#ifdef WITH_CONTENT_SCAN
- case ACLC_REGEX:
- rc = regex(&arg);
+ #ifdef WITH_CONTENT_SCAN
+ case ACLC_REGEX:
+ rc = regex(&arg);
break;
-#endif
+ #endif
case ACLC_SENDER_DOMAINS:
{
case ACLC_SET:
{
int old_pool = store_pool;
- if (cb->u.varnumber < ACL_C_MAX) store_pool = POOL_PERM;
- acl_var[cb->u.varnumber] = string_copy(arg);
+ if (cb->u.varname[0] == 'c') store_pool = POOL_PERM;
+ acl_var_create(cb->u.varname)->data.ptr = string_copy(arg);
store_pool = old_pool;
}
break;
-#ifdef WITH_CONTENT_SCAN
+ #ifdef WITH_CONTENT_SCAN
case ACLC_SPAM:
{
/* Seperate the regular expression and any optional parameters. */
}
}
break;
-#endif
+ #endif
-#ifdef EXPERIMENTAL_SPF
+ #ifdef EXPERIMENTAL_SPF
case ACLC_SPF:
- rc = spf_process(&arg, sender_address);
+ rc = spf_process(&arg, sender_address, SPF_PROCESS_NORMAL);
break;
-#endif
+ case ACLC_SPF_GUESS:
+ rc = spf_process(&arg, sender_address, SPF_PROCESS_GUESS);
+ break;
+ #endif
/* If the verb is WARN, discard any user message from verification, because
such messages are SMTP responses, not header additions. The latter come
/* If the result is the one for which "message" and/or "log_message" are used,
-handle the values of these options. Most verbs have but a single return for
-which the messages are relevant, but for "discard", it's useful to have the log
-message both when it succeeds and when it fails. Also, for an "accept" that
-appears in a QUIT ACL, we want to handle the user message. Since only "accept"
-and "warn" are permitted in that ACL, we don't need to test the verb.
-
-These modifiers act in different ways:
+handle the values of these modifiers. If there isn't a log message set, we make
+it the same as the user message.
"message" is a user message that will be included in an SMTP response. Unless
it is empty, it overrides any previously set user message.
"log_message" is a non-user message, and it adds to any existing non-user
message that is already set.
-If there isn't a log message set, we make it the same as the user message. */
+Most verbs have but a single return for which the messages are relevant, but
+for "discard", it's useful to have the log message both when it succeeds and
+when it fails. For "accept", the message is used in the OK case if there is no
+"endpass", but (for backwards compatibility) in the FAIL case if "endpass" is
+present. */
+
+if (*epp && rc == OK) user_message = NULL;
-if (((rc == FAIL_DROP)? FAIL : rc) == msgcond[verb] ||
- (verb == ACL_DISCARD && rc == OK) ||
- (where == ACL_WHERE_QUIT))
+if (((1<<rc) & msgcond[verb]) != 0)
{
uschar *expmessage;
+ uschar *old_user_msgptr = *user_msgptr;
+ uschar *old_log_msgptr = (*log_msgptr != NULL)? *log_msgptr : old_user_msgptr;
/* If the verb is "warn", messages generated by conditions (verification or
- nested ACLs) are discarded. Only messages specified at this level are used.
+ nested ACLs) are always discarded. This also happens for acceptance verbs
+ when they actually do accept. Only messages specified at this level are used.
However, the value of an existing message is available in $acl_verify_message
during expansions. */
- uschar *old_user_msgptr = *user_msgptr;
- uschar *old_log_msgptr = (*log_msgptr != NULL)? *log_msgptr : old_user_msgptr;
-
- if (verb == ACL_WARN) *log_msgptr = *user_msgptr = NULL;
+ if (verb == ACL_WARN ||
+ (rc == OK && (verb == ACL_ACCEPT || verb == ACL_DISCARD)))
+ *log_msgptr = *user_msgptr = NULL;
if (user_message != NULL)
{
*log_msgptr = *user_msgptr = NULL;
acl_temp_details = FALSE;
- if (where == ACL_WHERE_QUIT &&
+ if ((where == ACL_WHERE_QUIT || where == ACL_WHERE_NOTQUIT) &&
acl->verb != ACL_ACCEPT &&
acl->verb != ACL_WARN)
{
- *log_msgptr = string_sprintf("\"%s\" is not allowed in a QUIT ACL",
+ *log_msgptr = string_sprintf("\"%s\" is not allowed in a QUIT or not-QUIT ACL",
verbs[acl->verb]);
return ERROR;
}
case ACL_WARN:
if (cond == OK)
acl_warn(where, *user_msgptr, *log_msgptr);
- else if (cond == DEFER)
+ else if (cond == DEFER && (log_extra_selector & LX_acl_warn_skipped) != 0)
log_write(0, LOG_MAIN, "%s Warning: ACL \"warn\" statement skipped: "
"condition test deferred%s%s", host_and_ident(TRUE),
(*log_msgptr == NULL)? US"" : US": ",
Arguments:
where ACL_WHERE_xxxx indicating where called from
- data_string RCPT address, or SMTP command argument, or NULL
+ recipient RCPT address for RCPT check, else NULL
s the input string; NULL is the same as an empty ACL => DENY
user_msgptr where to put a user error (for SMTP response)
log_msgptr where to put a logging message (not for SMTP response)
*/
int
-acl_check(int where, uschar *data_string, uschar *s, uschar **user_msgptr,
+acl_check(int where, uschar *recipient, uschar *s, uschar **user_msgptr,
uschar **log_msgptr)
{
int rc;
address_item adb;
-address_item *addr;
+address_item *addr = NULL;
*user_msgptr = *log_msgptr = NULL;
sender_verified_failed = NULL;
ratelimiters_cmd = NULL;
+log_reject_target = LOG_MAIN|LOG_REJECT;
if (where == ACL_WHERE_RCPT)
{
adb = address_defaults;
addr = &adb;
- addr->address = data_string;
+ addr->address = recipient;
if (deliver_split_address(addr) == DEFER)
{
*log_msgptr = US"defer in percent_hack_domains check";
deliver_domain = addr->domain;
deliver_localpart = addr->local_part;
}
-else
- {
- addr = NULL;
- smtp_command_argument = data_string;
- }
rc = acl_check_internal(where, addr, s, 0, user_msgptr, log_msgptr);
-smtp_command_argument = deliver_domain =
- deliver_localpart = deliver_address_data = sender_address_data = NULL;
+deliver_domain = deliver_localpart = deliver_address_data =
+ sender_address_data = NULL;
/* A DISCARD response is permitted only for message ACLs, excluding the PREDATA
ACL, which is really in the middle of an SMTP command. */
return ERROR;
}
-/* Before giving an error response, take a look at the length of any user
-message, and split it up into multiple lines if possible. */
+/* Before giving a response, take a look at the length of any user message, and
+split it up into multiple lines if possible. */
-if (rc != OK && *user_msgptr != NULL && Ustrlen(*user_msgptr) > 75)
- {
- uschar *s = *user_msgptr = string_copy(*user_msgptr);
- uschar *ss = s;
+*user_msgptr = string_split_message(*user_msgptr);
+if (fake_response != OK)
+ fake_response_text = string_split_message(fake_response_text);
- for (;;)
- {
- int i = 0;
- while (i < 75 && *ss != 0 && *ss != '\n') ss++, i++;
- if (*ss == 0) break;
- if (*ss == '\n')
- s = ++ss;
- else
- {
- uschar *t = ss + 1;
- uschar *tt = NULL;
- while (--t > s + 35)
- {
- if (*t == ' ')
- {
- if (t[-1] == ':') { tt = t; break; }
- if (tt == NULL) tt = t;
- }
- }
+return rc;
+}
- if (tt == NULL) /* Can't split behind - try ahead */
- {
- t = ss + 1;
- while (*t != 0)
- {
- if (*t == ' ' || *t == '\n')
- { tt = t; break; }
- t++;
- }
- }
- if (tt == NULL) break; /* Can't find anywhere to split */
- *tt = '\n';
- s = ss = tt+1;
- }
- }
+
+/*************************************************
+* Create ACL variable *
+*************************************************/
+
+/* Create an ACL variable or reuse an existing one. ACL variables are in a
+binary tree (see tree.c) with acl_var_c and acl_var_m as root nodes.
+
+Argument:
+ name pointer to the variable's name, starting with c or m
+
+Returns the pointer to variable's tree node
+*/
+
+tree_node *
+acl_var_create(uschar *name)
+{
+tree_node *node, **root;
+root = (name[0] == 'c')? &acl_var_c : &acl_var_m;
+node = tree_search(*root, name);
+if (node == NULL)
+ {
+ node = store_get(sizeof(tree_node) + Ustrlen(name));
+ Ustrcpy(node->name, name);
+ (void)tree_insertnode(root, node);
}
+node->data.ptr = NULL;
+return node;
+}
-return rc;
+
+
+/*************************************************
+* Write an ACL variable in spool format *
+*************************************************/
+
+/* This function is used as a callback for tree_walk when writing variables to
+the spool file. To retain spool file compatibility, what is written is -aclc or
+-aclm followed by the rest of the name and the data length, space separated,
+then the value itself, starting on a new line, and terminated by an additional
+newline. When we had only numbered ACL variables, the first line might look
+like this: "-aclc 5 20". Now it might be "-aclc foo 20" for the variable called
+acl_cfoo.
+
+Arguments:
+ name of the variable
+ value of the variable
+ ctx FILE pointer (as a void pointer)
+
+Returns: nothing
+*/
+
+void
+acl_var_write(uschar *name, uschar *value, void *ctx)
+{
+FILE *f = (FILE *)ctx;
+fprintf(f, "-acl%c %s %d\n%s\n", name[0], name+1, Ustrlen(value), value);
}
/* End of acl.c */
git://git.exim.org / exim.git / blobdiff