-/* $Cambridge: exim/src/src/acl.c,v 1.1 2004/10/07 10:39:01 ph10 Exp $ */
+/* $Cambridge: exim/src/src/acl.c,v 1.5.2.1 2004/11/25 15:33:55 tom Exp $ */
/*************************************************
* Exim - an Internet mail transport agent *
/* 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, ACLC_CONDITION, ACLC_CONTROL,
+#ifdef WITH_CONTENT_SCAN
+ ACLC_DECODE,
+#endif
+ ACLC_DELAY, 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
+ 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",
+ US"control",
+#ifdef WITH_CONTENT_SCAN
+ US"decode",
+#endif
+ US"delay", 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
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"};
/* 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
FALSE, /* authenticated */
TRUE, /* condition */
TRUE, /* control */
+#ifdef WITH_CONTENT_SCAN
+ TRUE, /* decode */
+#endif
TRUE, /* delay */
TRUE, /* dnslists */
FALSE, /* domains */
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
TRUE /* verify */
};
FALSE, /* authenticated */
FALSE, /* condition */
TRUE, /* control */
+#ifdef WITH_CONTENT_SCAN
+ FALSE, /* decode */
+#endif
TRUE, /* delay */
FALSE, /* dnslists */
FALSE, /* domains */
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
FALSE /* verify */
};
-/* Bit map of which conditions are not allowed at certain times. For each
-condition, there's a bitmap of dis-allowed times. */
+/* Bit map vector of which conditions are not allowed at certain times. For
+each condition, there's a bitmap of dis-allowed times. */
static unsigned int cond_forbids[] = {
0, /* acl */
always and check in the control processing itself */
0, /* control */
+
+#ifdef WITH_CONTENT_SCAN
+ (1<<ACL_WHERE_NOTSMTP)|(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 */
(1<<ACL_WHERE_NOTSMTP), /* dnslists */
0, /* log_message */
0, /* logwrite */
+
+#ifdef WITH_CONTENT_SCAN
+ (1<<ACL_WHERE_NOTSMTP)|(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_NOTSMTP)|(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_NOTSMTP)|(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)|(1<<ACL_WHERE_MIME),
+#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_NOTSMTP)|(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
+
/* Certain types of verify are always allowed, so we let it through
always and check in the verify function itself */
0 /* verify */
-
};
enum { 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, CONTROL_FAKEREJECT,
+#endif
+ 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[] = {
+ 0, /* error */
+ ~(1<<ACL_WHERE_RCPT), /* caseful_local_part */
+ ~(1<<ACL_WHERE_RCPT), /* caselower_local_part */
+ (1<<ACL_WHERE_NOTSMTP), /* enforce_sync */
+ (1<<ACL_WHERE_NOTSMTP), /* no_enforce_sync */
+
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* freeze */
+ (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+ (1<<ACL_WHERE_NOTSMTP)),
+
+ ~((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_MAIL)|(1<<ACL_WHERE_RCPT)| /* submission */
+ (1<<ACL_WHERE_PREDATA)),
+
+#ifdef WITH_CONTENT_SCAN
+ (1<<ACL_WHERE_NOTSMTP), /* no_mbox_unspool */
+ (1<<ACL_WHERE_NOTSMTP), /* fakereject */
+#endif
+
+ (1<<ACL_WHERE_NOTSMTP) /* no_multiline */
+};
-/* Structure listing various control arguments, with their characteristics.
-The maximum "where" value controls the ACLs in which the various controls are
-permitted to occur. Specifying ACL_WHERE_RCPT limits it to just the RCPT ACL;
-specifying ACL_WHERE_NOTSMTP limits it to "message" ACLs. */
+/* Structure listing various control arguments, with their characteristics. */
typedef struct control_def {
uschar *name;
int value; /* CONTROL_xxx value */
- int where_max; /* Maximum "where" value */
BOOL has_option; /* Has /option(s) following */
} control_def;
static control_def controls_list[] = {
- { US"caseful_local_part", CONTROL_CASEFUL_LOCAL_PART,
- ACL_WHERE_RCPT, FALSE },
- { US"caselower_local_part", CONTROL_CASELOWER_LOCAL_PART,
- ACL_WHERE_RCPT, FALSE },
- { US"enforce_sync", CONTROL_ENFORCE_SYNC,
- INT_MAX, FALSE },
- { US"freeze", CONTROL_FREEZE,
- ACL_WHERE_NOTSMTP, FALSE },
- { US"no_enforce_sync", CONTROL_NO_ENFORCE_SYNC,
- INT_MAX, FALSE },
- { US"no_multiline_responses", CONTROL_NO_MULTILINE,
- INT_MAX, FALSE },
- { US"queue_only", CONTROL_QUEUE_ONLY,
- ACL_WHERE_NOTSMTP, FALSE },
- { US"submission", CONTROL_SUBMISSION,
- ACL_WHERE_NOTSMTP, TRUE }
+ { 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},
+#ifdef WITH_CONTENT_SCAN
+ { US"no_mbox_unspool", CONTROL_NO_MBOX_UNSPOOL, FALSE},
+ { US"fakereject", CONTROL_FAKEREJECT, TRUE},
+#endif
+ { US"submission", CONTROL_SUBMISSION, TRUE}
};
/* Enable recursion between acl_check_internal() and acl_check_condition() */
int sep = '/';
int callout = -1;
int callout_overall = -1;
+int callout_connect = -1;
int verify_options = 0;
int rc;
BOOL verify_header_sender = FALSE;
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
+ kind of table-driven thing. */
+
while ((opt = string_nextinlist(&ss, &optsep, buffer, sizeof(buffer)))
!= NULL)
{
return ERROR;
}
}
+ else if (strncmpic(opt, US"connect", 7) == 0)
+ {
+ opt += 7;
+ while (isspace(*opt)) opt++;
+ if (*opt++ != '=')
+ {
+ *log_msgptr = string_sprintf("'=' expected after "
+ "\"callout_overaall\" in ACL condition \"%s\"", arg);
+ return ERROR;
+ }
+ while (isspace(*opt)) opt++;
+ callout_connect = readconf_readtime(opt, 0, FALSE);
+ if (callout_connect < 0)
+ {
+ *log_msgptr = string_sprintf("bad time value in ACL condition "
+ "\"verify %s\"", arg);
+ return ERROR;
+ }
+ }
else /* Plain time is callout connect/command timeout */
{
callout = readconf_readtime(opt, 0, FALSE);
if (verify_header_sender)
{
rc = verify_check_header_address(user_msgptr, log_msgptr, callout,
- callout_overall, se_mailfrom, pm_mailfrom, verify_options);
+ callout_overall, callout_connect, se_mailfrom, pm_mailfrom, verify_options);
if (smtp_return_error_details)
{
if (*user_msgptr == NULL && *log_msgptr != NULL)
else
{
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)
verify_options. */
rc = verify_address(sender_vaddr, NULL, verify_options, callout,
- callout_overall, se_mailfrom, pm_mailfrom, &routed);
+ callout_overall, callout_connect, se_mailfrom, pm_mailfrom, &routed);
HDEBUG(D_acl) debug_printf("----------- end verify ------------\n");
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
+ 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;
}
/* A recipient address just gets a straightforward verify; again we must handle
addr2 = *addr;
rc = verify_address(&addr2, NULL, verify_options|vopt_is_recipient, callout,
- callout_overall, se_mailfrom, pm_mailfrom, NULL);
+ 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;
return CONTROL_ERROR;
}
-if (where > d->where_max)
- {
- *log_msgptr = string_sprintf("cannot use \"control=%s\" in %s ACL",
- arg, acl_wherenames[where]);
- return CONTROL_ERROR;
- }
-
*pptr = arg + len;
return d->value;
}
for (; cb != NULL; cb = cb->next)
{
uschar *arg;
+ int control_type;
/* The message and log_message items set up messages to be used in
case of rejection. They are expanded later. */
break;
case ACLC_CONTROL:
- switch (decode_control(arg, &p, where, log_msgptr))
+ control_type = decode_control(arg, &p, where, log_msgptr);
+
+ /* Check 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)
{
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;
+#ifdef WITH_CONTENT_SCAN
+ case CONTROL_FAKEREJECT:
+ fake_reject = TRUE;
+ break;
+#endif
+
case CONTROL_FREEZE:
deliver_freeze = TRUE;
deliver_frozen_at = time(NULL);
case CONTROL_SUBMISSION:
submission_mode = TRUE;
- if (Ustrncmp(p, "/domain=", 8) == 0)
- {
- submission_domain = string_copy(p+8);
- }
- else if (*p != 0)
+ while (*p == '/')
+ {
+ if (Ustrncmp(p, "/sender_retain", 14) == 0)
+ {
+ p += 14;
+ active_local_sender_retain = TRUE;
+ active_local_from_check = FALSE;
+ }
+ else if (Ustrncmp(p, "/domain=", 8) == 0)
+ {
+ uschar *pp = p + 8;
+ while (*pp != 0 && *pp != '/') pp++;
+ submission_domain = string_copyn(p+8, pp-p);
+ p = pp;
+ }
+ else break;
+ }
+ if (*p != 0)
{
- *log_msgptr = string_sprintf("syntax error in argument for "
- "\"control\" modifier \"%s\"", arg);
+ *log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
return ERROR;
}
break;
}
break;
+#ifdef WITH_CONTENT_SCAN
+ case ACLC_DECODE:
+ rc = mime_decode(&arg);
+ break;
+#endif
+
case ACLC_DELAY:
{
int delay = readconf_readtime(arg, 0, FALSE);
log_write(0, logbits, "%s", string_printing(s));
}
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
+
/* 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. */
rc = acl_check_internal(where, addr, s, 0, user_msgptr, log_msgptr);
smtp_command_argument = deliver_domain =
- deliver_localpart = deliver_address_data = NULL;
+ 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. */
git://git.exim.org / users / jgh / exim.git / blobdiff