-/* $Cambridge: exim/src/src/acl.c,v 1.5 2004/11/04 12:19:48 ph10 Exp $ */
+/* $Cambridge: exim/src/src/acl.c,v 1.25 2005/03/15 15:36:41 ph10 Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2004 */
+/* Copyright (c) University of Cambridge 1995 - 2005 */
/* See the file NOTICE for conditions of use and distribution. */
/* Code for handling Access Control Lists (ACLs) */
/* ACL condition and modifier codes - keep in step with the table that
follows. */
-enum { ACLC_ACL, ACLC_AUTHENTICATED, ACLC_CONDITION, ACLC_CONTROL, ACLC_DELAY,
- ACLC_DNSLISTS, ACLC_DOMAINS, ACLC_ENCRYPTED, ACLC_ENDPASS, ACLC_HOSTS,
- ACLC_LOCAL_PARTS, ACLC_LOG_MESSAGE, ACLC_LOGWRITE, ACLC_MESSAGE,
- ACLC_RECIPIENTS, ACLC_SENDER_DOMAINS, ACLC_SENDERS, ACLC_SET, ACLC_VERIFY };
+enum { ACLC_ACL, ACLC_AUTHENTICATED,
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+ ACLC_BMI_OPTIN,
+#endif
+ACLC_CONDITION, ACLC_CONTROL,
+#ifdef WITH_CONTENT_SCAN
+ ACLC_DECODE,
+#endif
+ ACLC_DELAY,
+#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,
+#ifdef WITH_CONTENT_SCAN
+ ACLC_MALWARE,
+#endif
+ ACLC_MESSAGE,
+#ifdef WITH_CONTENT_SCAN
+ ACLC_MIME_REGEX,
+#endif
+ ACLC_RECIPIENTS,
+#ifdef WITH_CONTENT_SCAN
+ ACLC_REGEX,
+#endif
+ ACLC_SENDER_DOMAINS, ACLC_SENDERS, ACLC_SET,
+#ifdef WITH_CONTENT_SCAN
+ ACLC_SPAM,
+#endif
+#ifdef EXPERIMENTAL_SPF
+ ACLC_SPF,
+#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. */
-static uschar *conditions[] = { US"acl", US"authenticated", US"condition",
- US"control", US"delay", US"dnslists", US"domains", US"encrypted",
+static uschar *conditions[] = { US"acl", US"authenticated",
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+ US"bmi_optin",
+#endif
+ US"condition",
+ US"control",
+#ifdef WITH_CONTENT_SCAN
+ US"decode",
+#endif
+ US"delay",
+#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",
- US"message", US"recipients", US"sender_domains", US"senders", US"set",
+#ifdef WITH_CONTENT_SCAN
+ US"malware",
+#endif
+ US"message",
+#ifdef WITH_CONTENT_SCAN
+ US"mime_regex",
+#endif
+ US"recipients",
+#ifdef WITH_CONTENT_SCAN
+ US"regex",
+#endif
+ US"sender_domains", US"senders", US"set",
+#ifdef WITH_CONTENT_SCAN
+ US"spam",
+#endif
+#ifdef EXPERIMENTAL_SPF
+ US"spf",
+#endif
US"verify" };
-
+
/* ACL control names */
static uschar *controls[] = { 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"no_multiline"};
+ US"queue_only", US"submission", US"no_multiline"};
/* 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
static uschar cond_expand_at_top[] = {
TRUE, /* acl */
FALSE, /* authenticated */
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+ TRUE, /* bmi_optin */
+#endif
TRUE, /* condition */
TRUE, /* control */
+#ifdef WITH_CONTENT_SCAN
+ TRUE, /* decode */
+#endif
TRUE, /* delay */
+#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 */
+#endif
TRUE, /* dnslists */
FALSE, /* domains */
FALSE, /* encrypted */
FALSE, /* local_parts */
TRUE, /* log_message */
TRUE, /* logwrite */
+#ifdef WITH_CONTENT_SCAN
+ TRUE, /* malware */
+#endif
TRUE, /* message */
+#ifdef WITH_CONTENT_SCAN
+ TRUE, /* mime_regex */
+#endif
FALSE, /* recipients */
+#ifdef WITH_CONTENT_SCAN
+ TRUE, /* regex */
+#endif
FALSE, /* sender_domains */
FALSE, /* senders */
TRUE, /* set */
+#ifdef WITH_CONTENT_SCAN
+ TRUE, /* spam */
+#endif
+#ifdef EXPERIMENTAL_SPF
+ TRUE, /* spf */
+#endif
TRUE /* verify */
};
static uschar cond_modifiers[] = {
FALSE, /* acl */
FALSE, /* authenticated */
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+ TRUE, /* bmi_optin */
+#endif
FALSE, /* condition */
TRUE, /* control */
+#ifdef WITH_CONTENT_SCAN
+ FALSE, /* decode */
+#endif
TRUE, /* delay */
+#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 */
+#endif
FALSE, /* dnslists */
FALSE, /* domains */
FALSE, /* encrypted */
FALSE, /* hosts */
FALSE, /* local_parts */
TRUE, /* log_message */
- TRUE, /* log_write */
+ TRUE, /* logwrite */
+#ifdef WITH_CONTENT_SCAN
+ FALSE, /* malware */
+#endif
TRUE, /* message */
+#ifdef WITH_CONTENT_SCAN
+ FALSE, /* mime_regex */
+#endif
FALSE, /* recipients */
+#ifdef WITH_CONTENT_SCAN
+ FALSE, /* regex */
+#endif
FALSE, /* sender_domains */
FALSE, /* senders */
TRUE, /* set */
+#ifdef WITH_CONTENT_SCAN
+ FALSE, /* spam */
+#endif
+#ifdef EXPERIMENTAL_SPF
+ FALSE, /* spf */
+#endif
FALSE /* verify */
};
static unsigned int cond_forbids[] = {
0, /* acl */
+
(1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_CONNECT)| /* authenticated */
(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
+
0, /* condition */
/* 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
+ (1<<ACL_WHERE_AUTH)| /* decode */
+ (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)|
+ (1<<ACL_WHERE_DATA)|(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_RCPT),
+#endif
+
0, /* delay */
+
+#ifdef WITH_OLD_DEMIME
+ (1<<ACL_WHERE_AUTH)| /* demime */
+ (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_MIME),
+#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),
+
+ (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),
+
+ (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
+
(1<<ACL_WHERE_NOTSMTP), /* dnslists */
(1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_AUTH)| /* domains */
(1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_CONNECT)| /* encrypted */
(1<<ACL_WHERE_HELO),
+
0, /* endpass */
+
(1<<ACL_WHERE_NOTSMTP), /* hosts */
(1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_AUTH)| /* local_parts */
(1<<ACL_WHERE_VRFY),
0, /* log_message */
+
0, /* logwrite */
+
+#ifdef WITH_CONTENT_SCAN
+ (1<<ACL_WHERE_AUTH)| /* malware */
+ (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_MIME),
+#endif
+
0, /* message */
+#ifdef WITH_CONTENT_SCAN
+ (1<<ACL_WHERE_AUTH)| /* mime_regex */
+ (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)|
+ (1<<ACL_WHERE_DATA)|(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_RCPT),
+#endif
+
(1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_AUTH)| /* recipients */
(1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)|
(1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_PREDATA)|
(1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_STARTTLS)|
(1<<ACL_WHERE_VRFY),
+#ifdef WITH_CONTENT_SCAN
+ (1<<ACL_WHERE_AUTH)| /* regex */
+ (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)|(1<<ACL_WHERE_CONNECT)| /* sender_domains */
(1<<ACL_WHERE_HELO)|
(1<<ACL_WHERE_MAILAUTH)|(1<<ACL_WHERE_QUIT)|
0, /* set */
+#ifdef WITH_CONTENT_SCAN
+ (1<<ACL_WHERE_AUTH)| /* spam */
+ (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_MIME),
+#endif
+
+#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
+
/* Certain types of verify are always allowed, so we let it through
always and check in the verify function itself */
/* Return values from decode_control() */
-enum { CONTROL_ERROR, CONTROL_CASEFUL_LOCAL_PART, CONTROL_CASELOWER_LOCAL_PART,
+enum {
+#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, CONTROL_NO_MULTILINE };
+ CONTROL_QUEUE_ONLY, CONTROL_SUBMISSION,
+#ifdef WITH_CONTENT_SCAN
+ CONTROL_NO_MBOX_UNSPOOL,
+#endif
+ CONTROL_FAKEREJECT, CONTROL_NO_MULTILINE };
/* Bit map vector of which controls are not allowed at certain times. For
each control, 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 control_forbids[] = {
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+ 0, /* bmi_run */
+#endif
+#ifdef EXPERIMENTAL_DOMAINKEYS
+ (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP), /* dk_verify */
+#endif
+
0, /* error */
+
+ (unsigned int)
~(1<<ACL_WHERE_RCPT), /* caseful_local_part */
+
+ (unsigned int)
~(1<<ACL_WHERE_RCPT), /* caselower_local_part */
+
(1<<ACL_WHERE_NOTSMTP), /* enforce_sync */
+
(1<<ACL_WHERE_NOTSMTP), /* no_enforce_sync */
-
+
+ (unsigned int)
~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* freeze */
(1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
- (1<<ACL_WHERE_NOTSMTP)),
-
+ (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_MIME)),
+
+ (unsigned int)
~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* queue_only */
(1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
- (1<<ACL_WHERE_NOTSMTP)),
-
+ (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_MIME)),
+
+ (unsigned int)
~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* submission */
- (1<<ACL_WHERE_PREDATA)),
-
+ (1<<ACL_WHERE_PREDATA)),
+
+#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
+
+ (unsigned int)
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* fakereject */
+ (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+ (1<<ACL_WHERE_MIME)),
+
(1<<ACL_WHERE_NOTSMTP) /* no_multiline */
};
} control_def;
static control_def controls_list[] = {
+#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"no_enforce_sync", CONTROL_NO_ENFORCE_SYNC, FALSE},
{ US"no_multiline_responses", CONTROL_NO_MULTILINE, FALSE},
{ US"queue_only", CONTROL_QUEUE_ONLY, FALSE},
+#ifdef WITH_CONTENT_SCAN
+ { US"no_mbox_unspool", CONTROL_NO_MBOX_UNSPOOL, FALSE},
+#endif
+ { US"fakereject", CONTROL_FAKEREJECT, TRUE},
{ US"submission", CONTROL_SUBMISSION, TRUE}
};
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;
uschar *verify_sender_address = NULL;
uschar *pm_mailfrom = NULL;
uschar *se_mailfrom = NULL;
+
+/* Some of the verify items have slash-separated options; some do not. Diagnose
+an error if options are given for items that don't expect them. This code has
+now got very message. Refactoring to use a table would be a good idea one day.
+*/
+
+uschar *slash = Ustrchr(arg, '/');
uschar *list = arg;
uschar *ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size);
if (strcmpic(ss, US"reverse_host_lookup") == 0)
{
+ if (slash != NULL) goto NO_OPTIONS;
if (sender_host_address == NULL) return OK;
return acl_verify_reverse(user_msgptr, log_msgptr);
}
if (strcmpic(ss, US"certificate") == 0)
{
+ if (slash != NULL) goto NO_OPTIONS;
if (tls_certificate_verified) return OK;
*user_msgptr = US"no verified certificate";
return FAIL;
/* We can test the result of optional HELO verification */
-if (strcmpic(ss, US"helo") == 0) return helo_verified? OK : FAIL;
+if (strcmpic(ss, US"helo") == 0)
+ {
+ if (slash != NULL) goto NO_OPTIONS;
+ return helo_verified? OK : FAIL;
+ }
-/* Handle header verification options - permitted only after DATA or a non-SMTP
-message. */
+/* Check that all relevant header lines have the correct syntax. If there is
+a syntax error, we return details of the error to the sender if configured to
+send out full details. (But a "message" setting on the ACL can override, as
+always). */
-if (strncmpic(ss, US"header_", 7) == 0)
+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;
}
+ 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 all relevant header lines have the correct syntax. If there is
- a syntax error, we return details of the error to the sender if configured to
- send out full details. (But a "message" setting on the ACL can override, as
- always). */
- if (strcmpic(ss+7, US"syntax") == 0)
- {
- int 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;
- }
+/* The remaining verification tests check recipient and sender addresses,
+either from the envelope or from the header. There are a number of
+slash-separated options that are common to all of them. */
- /* Check that there is at least one verifiable sender address in the relevant
- header lines. This can be followed by callout and defer options, just like
- sender and recipient. */
- else if (strcmpic(ss+7, US"sender") == 0) verify_header_sender = TRUE;
+/* Check that there is at least one verifiable sender address in the relevant
+header lines. This can be followed by callout and defer options, just like
+sender and recipient. */
- /* Unknown verify argument starting with "header_" */
-
- else goto BAD_VERIFY;
+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;
+ }
+ verify_header_sender = TRUE;
}
/* Otherwise, first item in verify argument must be "sender" or "recipient".
}
}
-/* Remaining items are optional */
+/* Remaining items are optional; they apply to sender and recipient
+verification, including "header sender" verification. */
while ((ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size))
!= NULL)
uschar *opt;
uschar buffer[256];
while (isspace(*ss)) ss++;
-
- /* This callout option handling code has become a mess as new options
- have been added in an ad hoc manner. It should be tidied up into some
+
+ /* This callout option handling code has become a mess as new options
+ have been added in an ad hoc manner. It should be tidied up into some
kind of table-driven thing. */
-
+
while ((opt = string_nextinlist(&ss, &optsep, buffer, sizeof(buffer)))
!= NULL)
{
if (verify_header_sender)
{
+ int verrno;
rc = verify_check_header_address(user_msgptr, log_msgptr, callout,
- callout_overall, callout_connect, se_mailfrom, pm_mailfrom, verify_options);
- if (smtp_return_error_details)
+ callout_overall, callout_connect, se_mailfrom, pm_mailfrom, verify_options,
+ &verrno);
+ if (rc != OK)
{
- if (*user_msgptr == NULL && *log_msgptr != NULL)
- *user_msgptr = string_sprintf("Rejected after DATA: %s", *log_msgptr);
- if (rc == DEFER) acl_temp_details = TRUE;
+ *basic_errno = verrno;
+ if (smtp_return_error_details)
+ {
+ if (*user_msgptr == NULL && *log_msgptr != NULL)
+ *user_msgptr = string_sprintf("Rejected after DATA: %s", *log_msgptr);
+ if (rc == DEFER) acl_temp_details = TRUE;
+ }
}
}
{
BOOL routed = TRUE;
uschar *save_address_data = deliver_address_data;
-
+
sender_vaddr = deliver_make_addr(verify_sender_address, TRUE);
if (no_details) setflag(sender_vaddr, af_sverify_told);
if (verify_sender_address[0] != 0)
sender_vaddr->special_action = rc;
sender_vaddr->next = sender_verified_list;
sender_verified_list = sender_vaddr;
-
- /* Restore the recipient address data, which might have been clobbered by
+
+ /* Restore the recipient address data, which might have been clobbered by
the sender verification. */
-
+
deliver_address_data = save_address_data;
}
-
+
/* Put the sender address_data value into $sender_address_data */
- sender_address_data = sender_vaddr->p.address_data;
+ sender_address_data = sender_vaddr->p.address_data;
}
/* A recipient address just gets a straightforward verify; again we must handle
rc = verify_address(&addr2, NULL, verify_options|vopt_is_recipient, callout,
callout_overall, callout_connect, se_mailfrom, pm_mailfrom, NULL);
HDEBUG(D_acl) debug_printf("----------- end verify ------------\n");
+
*log_msgptr = addr2.message;
- *user_msgptr = addr2.user_message;
+ *user_msgptr = (addr2.user_message != NULL)?
+ addr2.user_message : addr2.message;
*basic_errno = addr2.basic_errno;
/* Make $address_data visible */
BAD_VERIFY:
*log_msgptr = string_sprintf("expected \"sender[=address]\", \"recipient\", "
- "\"header_syntax\" or \"header_sender\" at start of ACL condition "
+ "\"helo\", \"header_syntax\", \"header_sender\" or "
+ "\"reverse_host_lookup\" at start of ACL condition "
"\"verify %s\"", arg);
return ERROR;
+
+/* Options supplied when not allowed come here */
+
+NO_OPTIONS:
+*log_msgptr = string_sprintf("unexpected '/' found in \"%s\" "
+ "(this verify item has no options)", arg);
+return ERROR;
}
uschar *log_message = NULL;
uschar *p;
int rc = OK;
+#ifdef WITH_CONTENT_SCAN
+int sep = '/';
+#endif
for (; cb != NULL; cb = cb->next)
{
uschar *arg;
- int control_type;
+ int control_type;
/* The message and log_message items set up messages to be used in
case of rejection. They are expanded later. */
TRUE, NULL);
break;
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+ case ACLC_BMI_OPTIN:
+ {
+ int old_pool = store_pool;
+ store_pool = POOL_PERM;
+ bmi_current_optin = string_copy(arg);
+ store_pool = old_pool;
+ }
+ break;
+#endif
+
case ACLC_CONDITION:
if (Ustrspn(arg, "0123456789") == Ustrlen(arg)) /* Digits, or empty */
rc = (Uatoi(arg) == 0)? FAIL : OK;
case ACLC_CONTROL:
control_type = decode_control(arg, &p, where, log_msgptr);
- /* Check this control makes sense at this time */
+ /* Check if this control makes sense at this time */
if ((control_forbids[control_type] & (1 << where)) != 0)
{
*log_msgptr = string_sprintf("cannot use \"control=%s\" in %s ACL",
controls[control_type], acl_wherenames[where]);
return ERROR;
- }
+ }
switch(control_type)
{
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+ case CONTROL_BMI_RUN:
+ bmi_run = 1;
+ break;
+#endif
+#ifdef EXPERIMENTAL_DOMAINKEYS
+ case CONTROL_DK_VERIFY:
+ dk_do_verify = 1;
+ break;
+#endif
case CONTROL_ERROR:
return ERROR;
smtp_enforce_sync = FALSE;
break;
+#ifdef WITH_CONTENT_SCAN
+ case CONTROL_NO_MBOX_UNSPOOL:
+ no_mbox_unspool = TRUE;
+ break;
+#endif
+
case CONTROL_NO_MULTILINE:
no_multiline_responses = TRUE;
break;
+ case CONTROL_FAKEREJECT:
+ fake_reject = TRUE;
+ if (*p == '/')
+ {
+ uschar *pp = p + 1;
+ while (*pp != 0) pp++;
+ fake_reject_text = expand_string(string_copyn(p+1, pp-p));
+ p = pp;
+ }
+ else
+ {
+ /* Explicitly reset to default string */
+ fake_reject_text = US"Your message has been rejected but is being kept for evaluation.\nIf it was a legitimate message, it may still be delivered to the target recipient(s).";
+ }
+ break;
+
case CONTROL_FREEZE:
deliver_freeze = TRUE;
deliver_frozen_at = time(NULL);
case CONTROL_SUBMISSION:
submission_mode = TRUE;
while (*p == '/')
- {
+ {
if (Ustrncmp(p, "/sender_retain", 14) == 0)
{
p += 14;
active_local_sender_retain = TRUE;
- active_local_from_check = FALSE;
- }
+ active_local_from_check = FALSE;
+ }
else if (Ustrncmp(p, "/domain=", 8) == 0)
{
uschar *pp = p + 8;
- while (*pp != 0 && *pp != '/') pp++;
+ while (*pp != 0 && *pp != '/') pp++;
submission_domain = string_copyn(p+8, pp-p);
- p = pp;
+ p = pp;
}
- else break;
- }
+ else break;
+ }
if (*p != 0)
{
*log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
}
break;
+#ifdef WITH_CONTENT_SCAN
+ case ACLC_DECODE:
+ rc = mime_decode(&arg);
+ break;
+#endif
+
case ACLC_DELAY:
{
int delay = readconf_readtime(arg, 0, FALSE);
HDEBUG(D_acl)
debug_printf("delay skipped in -bh checking mode\n");
}
- else sleep(delay);
+ else
+ {
+ while (delay > 0) delay = sleep(delay);
+ }
}
}
break;
+#ifdef WITH_OLD_DEMIME
+ case ACLC_DEMIME:
+ rc = demime(&arg);
+ break;
+#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
+
case ACLC_DNSLISTS:
rc = verify_check_dnsbl(&arg);
break;
}
break;
+#ifdef WITH_CONTENT_SCAN
+ case ACLC_MALWARE:
+ {
+ /* Seperate 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);
+ /* 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;
+
+ case ACLC_MIME_REGEX:
+ rc = mime_regex(&arg);
+ break;
+#endif
+
case ACLC_RECIPIENTS:
rc = match_address_list(addr->address, TRUE, TRUE, &arg, NULL, -1, 0,
&recipient_data);
break;
+#ifdef WITH_CONTENT_SCAN
+ case ACLC_REGEX:
+ rc = regex(&arg);
+ break;
+#endif
+
case ACLC_SENDER_DOMAINS:
{
uschar *sdomain;
}
break;
+#ifdef WITH_CONTENT_SCAN
+ case ACLC_SPAM:
+ {
+ /* Seperate the regular expression and any optional parameters. */
+ uschar *ss = string_nextinlist(&arg, &sep, big_buffer, big_buffer_size);
+ /* Run the spam backend. */
+ rc = spam(&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 EXPERIMENTAL_SPF
+ case ACLC_SPF:
+ rc = spf_process(&arg, sender_address);
+ 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
only from explicit "message" modifiers. */
projects / exim.git / blobdiff