* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2012 */
+/* Copyright (c) University of Cambridge 1995 - 2016 */
/* See the file NOTICE for conditions of use and distribution. */
/* Code for handling Access Control Lists (ACLs) */
/* ACL verbs */
-static uschar *verbs[] =
- { US"accept", US"defer", US"deny", US"discard", US"drop", US"require",
+static uschar *verbs[] = {
+ US"accept",
+ US"defer",
+ US"deny",
+ US"discard",
+ US"drop",
+ US"require",
US"warn" };
/* For each verb, the conditions for which "message" or "log_message" are used
};
/* ACL condition and modifier codes - keep in step with the table that
-follows, and the cond_expand_at_top and uschar cond_modifiers tables lower
+follows.
down. */
enum { ACLC_ACL,
ACLC_DECODE,
#endif
ACLC_DELAY,
-#ifdef WITH_OLD_DEMIME
- ACLC_DEMIME,
-#endif
#ifndef DISABLE_DKIM
ACLC_DKIM_SIGNER,
ACLC_DKIM_STATUS,
+#endif
+#ifdef EXPERIMENTAL_DMARC
+ ACLC_DMARC_STATUS,
#endif
ACLC_DNSLISTS,
ACLC_DOMAINS,
#ifdef WITH_CONTENT_SCAN
ACLC_MIME_REGEX,
#endif
+ ACLC_QUEUE,
ACLC_RATELIMIT,
ACLC_RECIPIENTS,
#ifdef WITH_CONTENT_SCAN
ACLC_SPF,
ACLC_SPF_GUESS,
#endif
+ ACLC_UDPSEND,
ACLC_VERIFY };
/* ACL conditions/modifiers: "delay", "control", "continue", "endpass",
-"message", "log_message", "log_reject_target", "logwrite", and "set" are
+"message", "log_message", "log_reject_target", "logwrite", "queue" 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
- US"delay",
-#ifdef WITH_OLD_DEMIME
- US"demime",
-#endif
-#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
- US"message",
-#ifdef WITH_CONTENT_SCAN
- US"mime_regex",
-#endif
- US"ratelimit",
- US"recipients",
-#ifdef WITH_CONTENT_SCAN
- US"regex",
-#endif
- US"remove_header",
- US"sender_domains", US"senders", US"set",
-#ifdef WITH_CONTENT_SCAN
- US"spam",
-#endif
-#ifdef EXPERIMENTAL_SPF
- US"spf",
- US"spf_guess",
-#endif
- US"verify" };
-
-
-/* Return values from decode_control(); keep in step with the table of names
-that follows! */
+typedef struct condition_def {
+ uschar *name;
-enum {
- CONTROL_AUTH_UNADVERTISED,
- #ifdef EXPERIMENTAL_BRIGHTMAIL
- CONTROL_BMI_RUN,
- #endif
- CONTROL_DEBUG,
- #ifndef DISABLE_DKIM
- CONTROL_DKIM_VERIFY,
- #endif
- CONTROL_DSCP,
- CONTROL_ERROR,
- CONTROL_CASEFUL_LOCAL_PART,
- CONTROL_CASELOWER_LOCAL_PART,
- CONTROL_CUTTHROUGH_DELIVERY,
- 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,
- CONTROL_NO_PIPELINING,
- CONTROL_NO_DELAY_FLUSH,
- CONTROL_NO_CALLOUT_FLUSH
-};
-
-/* 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
- US"debug",
- #ifndef DISABLE_DKIM
- US"dkim_disable_verify",
- #endif
- US"dscp",
- US"error",
- US"caseful_local_part",
- US"caselower_local_part",
- US"cutthrough_delivery",
- 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"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
+/* Flag to indicate the condition/modifier has a string expansion done
at the outer level. In the other cases, expansion already occurs in the
checking functions. */
+ BOOL expand_at_top:1;
-static uschar cond_expand_at_top[] = {
- FALSE, /* 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
- TRUE, /* delay */
-#ifdef WITH_OLD_DEMIME
- TRUE, /* demime */
-#endif
-#ifndef DISABLE_DKIM
- TRUE, /* dkim_signers */
- TRUE, /* dkim_status */
-#endif
- TRUE, /* dnslists */
- FALSE, /* domains */
- FALSE, /* encrypted */
- TRUE, /* endpass */
- FALSE, /* hosts */
- FALSE, /* local_parts */
- TRUE, /* log_message */
- TRUE, /* log_reject_target */
- TRUE, /* logwrite */
-#ifdef WITH_CONTENT_SCAN
- TRUE, /* malware */
-#endif
- TRUE, /* message */
-#ifdef WITH_CONTENT_SCAN
- TRUE, /* mime_regex */
-#endif
- TRUE, /* ratelimit */
- FALSE, /* recipients */
-#ifdef WITH_CONTENT_SCAN
- TRUE, /* regex */
-#endif
- TRUE, /* remove_header */
- FALSE, /* sender_domains */
- FALSE, /* senders */
- TRUE, /* set */
-#ifdef WITH_CONTENT_SCAN
- TRUE, /* spam */
-#endif
-#ifdef EXPERIMENTAL_SPF
- TRUE, /* spf */
- TRUE, /* spf_guess */
-#endif
- TRUE /* verify */
-};
-
-/* Flags to identify the modifiers */
-
-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
- TRUE, /* delay */
-#ifdef WITH_OLD_DEMIME
- FALSE, /* demime */
-#endif
-#ifndef DISABLE_DKIM
- FALSE, /* dkim_signers */
- FALSE, /* dkim_status */
-#endif
- FALSE, /* dnslists */
- FALSE, /* domains */
- FALSE, /* encrypted */
- TRUE, /* endpass */
- FALSE, /* hosts */
- FALSE, /* local_parts */
- TRUE, /* log_message */
- TRUE, /* log_reject_target */
- TRUE, /* logwrite */
-#ifdef WITH_CONTENT_SCAN
- FALSE, /* malware */
-#endif
- TRUE, /* message */
-#ifdef WITH_CONTENT_SCAN
- FALSE, /* mime_regex */
-#endif
- FALSE, /* ratelimit */
- FALSE, /* recipients */
-#ifdef WITH_CONTENT_SCAN
- FALSE, /* regex */
-#endif
- TRUE, /* remove_header */
- FALSE, /* sender_domains */
- FALSE, /* senders */
- TRUE, /* set */
-#ifdef WITH_CONTENT_SCAN
- FALSE, /* spam */
-#endif
-#ifdef EXPERIMENTAL_SPF
- FALSE, /* spf */
- FALSE, /* spf_guess */
-#endif
- FALSE /* verify */
-};
+ BOOL is_modifier:1;
/* 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. */
+ unsigned forbids;
-static unsigned int cond_forbids[] = {
- 0, /* acl */
-
- (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)),
-
- (1<<ACL_WHERE_NOTSMTP)| /* authenticated */
- (1<<ACL_WHERE_NOTSMTP_START)|
- (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO),
+} condition_def;
- #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)|
- (1<<ACL_WHERE_NOTSMTP_START),
- #endif
+static condition_def conditions[] = {
+ { US"acl", FALSE, FALSE, 0 },
- 0, /* condition */
+ { US"add_header", TRUE, TRUE,
+ (unsigned int)
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|
+ (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+#ifndef DISABLE_PRDR
+ (1<<ACL_WHERE_PRDR)|
+#endif
+ (1<<ACL_WHERE_MIME)|(1<<ACL_WHERE_NOTSMTP)|
+ (1<<ACL_WHERE_DKIM)|
+ (1<<ACL_WHERE_NOTSMTP_START)),
+ },
- 0, /* continue */
+ { US"authenticated", FALSE, FALSE,
+ (1<<ACL_WHERE_NOTSMTP)|
+ (1<<ACL_WHERE_NOTSMTP_START)|
+ (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO),
+ },
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+ { US"bmi_optin", TRUE, TRUE,
+ (1<<ACL_WHERE_AUTH)|
+ (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)|
+ (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_MIME)|
+# ifndef DISABLE_PRDR
+ (1<<ACL_WHERE_PRDR)|
+# endif
+ (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)|
+ (1<<ACL_WHERE_NOTSMTP_START),
+ },
+#endif
+ { US"condition", TRUE, FALSE, 0 },
+ { US"continue", TRUE, TRUE, 0 },
/* Certain types of control are always allowed, so we let it through
always and check in the control processing itself. */
+ { US"control", TRUE, TRUE, 0 },
- 0, /* control */
-
- #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
-
- (1<<ACL_WHERE_NOTQUIT), /* delay */
-
- #ifdef WITH_OLD_DEMIME
- (unsigned int)
- ~((1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)), /* demime */
- #endif
-
- #ifndef DISABLE_DKIM
- (unsigned int)
- ~(1<<ACL_WHERE_DKIM), /* dkim_signers */
-
- (unsigned int)
- ~(1<<ACL_WHERE_DKIM), /* dkim_status */
- #endif
-
- (1<<ACL_WHERE_NOTSMTP)| /* dnslists */
- (1<<ACL_WHERE_NOTSMTP_START),
-
- (unsigned int)
- ~(1<<ACL_WHERE_RCPT), /* domains */
-
- (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_START),
-
- (unsigned int)
- ~(1<<ACL_WHERE_RCPT), /* local_parts */
-
- 0, /* log_message */
-
- 0, /* log_reject_target */
-
- 0, /* logwrite */
+#ifdef EXPERIMENTAL_DCC
+ { US"dcc", TRUE, FALSE,
+ (unsigned int)
+ ~((1<<ACL_WHERE_DATA)|
+# ifndef DISABLE_PRDR
+ (1<<ACL_WHERE_PRDR)|
+# endif
+ (1<<ACL_WHERE_NOTSMTP)),
+ },
+#endif
+#ifdef WITH_CONTENT_SCAN
+ { US"decode", TRUE, FALSE, (unsigned int) ~(1<<ACL_WHERE_MIME) },
- #ifdef WITH_CONTENT_SCAN
- (unsigned int)
- ~((1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)), /* malware */
- #endif
+#endif
+ { US"delay", TRUE, TRUE, (1<<ACL_WHERE_NOTQUIT) },
+#ifndef DISABLE_DKIM
+ { US"dkim_signers", TRUE, FALSE, (unsigned int) ~(1<<ACL_WHERE_DKIM) },
+ { US"dkim_status", TRUE, FALSE, (unsigned int) ~(1<<ACL_WHERE_DKIM) },
+#endif
+#ifdef EXPERIMENTAL_DMARC
+ { US"dmarc_status", TRUE, FALSE, (unsigned int) ~(1<<ACL_WHERE_DATA) },
+#endif
- 0, /* message */
+ /* Explicit key lookups can be made in non-smtp ACLs so pass
+ always and check in the verify processing itself. */
+ { US"dnslists", TRUE, FALSE, 0 },
- #ifdef WITH_CONTENT_SCAN
- (unsigned int)
- ~(1<<ACL_WHERE_MIME), /* mime_regex */
- #endif
+ { US"domains", FALSE, FALSE,
+ (unsigned int)
+ ~((1<<ACL_WHERE_RCPT)
+ |(1<<ACL_WHERE_VRFY)
+#ifndef DISABLE_PRDR
+ |(1<<ACL_WHERE_PRDR)
+#endif
+ ),
+ },
+ { US"encrypted", FALSE, FALSE,
+ (1<<ACL_WHERE_NOTSMTP)|
+ (1<<ACL_WHERE_CONNECT)|
+ (1<<ACL_WHERE_NOTSMTP_START)|
+ (1<<ACL_WHERE_HELO),
+ },
- 0, /* ratelimit */
+ { US"endpass", TRUE, TRUE, 0 },
- (unsigned int)
- ~(1<<ACL_WHERE_RCPT), /* recipients */
+ { US"hosts", FALSE, FALSE,
+ (1<<ACL_WHERE_NOTSMTP)|
+ (1<<ACL_WHERE_NOTSMTP_START),
+ },
+ { US"local_parts", FALSE, FALSE,
+ (unsigned int)
+ ~((1<<ACL_WHERE_RCPT)
+ |(1<<ACL_WHERE_VRFY)
+ #ifndef DISABLE_PRDR
+ |(1<<ACL_WHERE_PRDR)
+ #endif
+ ),
+ },
- #ifdef WITH_CONTENT_SCAN
- (unsigned int)
- ~((1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)| /* regex */
- (1<<ACL_WHERE_MIME)),
- #endif
+ { US"log_message", TRUE, TRUE, 0 },
+ { US"log_reject_target", TRUE, TRUE, 0 },
+ { US"logwrite", TRUE, TRUE, 0 },
- (unsigned int)
- ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* remove_header */
- (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
- (1<<ACL_WHERE_MIME)|(1<<ACL_WHERE_NOTSMTP)|
- (1<<ACL_WHERE_NOTSMTP_START)),
+#ifdef WITH_CONTENT_SCAN
+ { US"malware", TRUE, FALSE,
+ (unsigned int)
+ ~((1<<ACL_WHERE_DATA)|
+# ifndef DISABLE_PRDR
+ (1<<ACL_WHERE_PRDR)|
+# endif
+ (1<<ACL_WHERE_NOTSMTP)),
+ },
+#endif
- (1<<ACL_WHERE_AUTH)|(1<<ACL_WHERE_CONNECT)| /* sender_domains */
- (1<<ACL_WHERE_HELO)|
- (1<<ACL_WHERE_MAILAUTH)|(1<<ACL_WHERE_QUIT)|
- (1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
- (1<<ACL_WHERE_STARTTLS)|(1<<ACL_WHERE_VRFY),
+ { US"message", TRUE, TRUE, 0 },
+#ifdef WITH_CONTENT_SCAN
+ { US"mime_regex", TRUE, FALSE, (unsigned int) ~(1<<ACL_WHERE_MIME) },
+#endif
- (1<<ACL_WHERE_AUTH)|(1<<ACL_WHERE_CONNECT)| /* senders */
- (1<<ACL_WHERE_HELO)|
- (1<<ACL_WHERE_MAILAUTH)|(1<<ACL_WHERE_QUIT)|
- (1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
- (1<<ACL_WHERE_STARTTLS)|(1<<ACL_WHERE_VRFY),
+ { US"queue", TRUE, TRUE,
+ (1<<ACL_WHERE_NOTSMTP)|
+#ifndef DISABLE_PRDR
+ (1<<ACL_WHERE_PRDR)|
+#endif
+ (1<<ACL_WHERE_DATA),
+ },
- 0, /* set */
+ { US"ratelimit", TRUE, FALSE, 0 },
+ { US"recipients", FALSE, FALSE, (unsigned int) ~(1<<ACL_WHERE_RCPT) },
- #ifdef WITH_CONTENT_SCAN
- (unsigned int)
- ~((1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)), /* spam */
- #endif
+#ifdef WITH_CONTENT_SCAN
+ { US"regex", TRUE, FALSE,
+ (unsigned int)
+ ~((1<<ACL_WHERE_DATA)|
+# ifndef DISABLE_PRDR
+ (1<<ACL_WHERE_PRDR)|
+# endif
+ (1<<ACL_WHERE_NOTSMTP)|
+ (1<<ACL_WHERE_MIME)),
+ },
- #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)|
- (1<<ACL_WHERE_NOTSMTP)|
- (1<<ACL_WHERE_NOTSMTP_START),
+#endif
+ { US"remove_header", TRUE, TRUE,
+ (unsigned int)
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|
+ (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+#ifndef DISABLE_PRDR
+ (1<<ACL_WHERE_PRDR)|
+#endif
+ (1<<ACL_WHERE_MIME)|(1<<ACL_WHERE_NOTSMTP)|
+ (1<<ACL_WHERE_NOTSMTP_START)),
+ },
+ { US"sender_domains", FALSE, FALSE,
+ (1<<ACL_WHERE_AUTH)|(1<<ACL_WHERE_CONNECT)|
+ (1<<ACL_WHERE_HELO)|
+ (1<<ACL_WHERE_MAILAUTH)|(1<<ACL_WHERE_QUIT)|
+ (1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
+ (1<<ACL_WHERE_STARTTLS)|(1<<ACL_WHERE_VRFY),
+ },
+ { US"senders", FALSE, FALSE,
+ (1<<ACL_WHERE_AUTH)|(1<<ACL_WHERE_CONNECT)|
+ (1<<ACL_WHERE_HELO)|
+ (1<<ACL_WHERE_MAILAUTH)|(1<<ACL_WHERE_QUIT)|
+ (1<<ACL_WHERE_ETRN)|(1<<ACL_WHERE_EXPN)|
+ (1<<ACL_WHERE_STARTTLS)|(1<<ACL_WHERE_VRFY),
+ },
+
+ { US"set", TRUE, TRUE, 0 },
- (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
+#ifdef WITH_CONTENT_SCAN
+ { US"spam", TRUE, FALSE,
+ (unsigned int)
+ ~((1<<ACL_WHERE_DATA)|
+# ifndef DISABLE_PRDR
+ (1<<ACL_WHERE_PRDR)|
+# endif
+ (1<<ACL_WHERE_NOTSMTP)),
+ },
+#endif
+#ifdef EXPERIMENTAL_SPF
+ { US"spf", TRUE, FALSE,
+ (1<<ACL_WHERE_AUTH)|(1<<ACL_WHERE_CONNECT)|
+ (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),
+ },
+ { US"spf_guess", TRUE, FALSE,
+ (1<<ACL_WHERE_AUTH)|(1<<ACL_WHERE_CONNECT)|
+ (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
+ { US"udpsend", TRUE, TRUE, 0 },
/* Certain types of verify are always allowed, so we let it through
always and check in the verify function itself */
-
- 0 /* verify */
+ { US"verify", TRUE, FALSE,
+ 0
+ },
};
-/* 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[] = {
- (unsigned int)
- ~((1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO)), /* allow_auth_unadvertised */
-
- #ifdef EXPERIMENTAL_BRIGHTMAIL
- 0, /* bmi_run */
- #endif
-
- 0, /* debug */
-
- #ifndef DISABLE_DKIM
- (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)| /* dkim_disable_verify */
- (1<<ACL_WHERE_NOTSMTP_START),
- #endif
-
- (1<<ACL_WHERE_NOTSMTP)|
- (1<<ACL_WHERE_NOTSMTP_START)|
- (1<<ACL_WHERE_NOTQUIT), /* dscp */
-
- 0, /* error */
-
- (unsigned int)
- ~(1<<ACL_WHERE_RCPT), /* caseful_local_part */
- (unsigned int)
- ~(1<<ACL_WHERE_RCPT), /* caselower_local_part */
+/* Return values from decode_control(); used as index so keep in step
+with the controls_list table that follows! */
- (unsigned int)
- 0, /* cutthrough_delivery */
-
- (1<<ACL_WHERE_NOTSMTP)| /* enforce_sync */
- (1<<ACL_WHERE_NOTSMTP_START),
-
- (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_PREDATA)|(1<<ACL_WHERE_DATA)|
- (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_MIME)),
-
- (unsigned int)
- ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* submission */
- (1<<ACL_WHERE_PREDATA)),
-
- (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
-
- (unsigned int)
- ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* fakedefer */
- (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
- (1<<ACL_WHERE_MIME)),
-
- (unsigned int)
- ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)| /* fakereject */
- (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
- (1<<ACL_WHERE_MIME)),
+enum {
+ CONTROL_AUTH_UNADVERTISED,
+#ifdef EXPERIMENTAL_BRIGHTMAIL
+ CONTROL_BMI_RUN,
+#endif
+ CONTROL_CASEFUL_LOCAL_PART,
+ CONTROL_CASELOWER_LOCAL_PART,
+ CONTROL_CUTTHROUGH_DELIVERY,
+ CONTROL_DEBUG,
+#ifndef DISABLE_DKIM
+ CONTROL_DKIM_VERIFY,
+#endif
+#ifdef EXPERIMENTAL_DMARC
+ CONTROL_DMARC_VERIFY,
+ CONTROL_DMARC_FORENSIC,
+#endif
+ CONTROL_DSCP,
+ CONTROL_ENFORCE_SYNC,
+ CONTROL_ERROR, /* pseudo-value for decode errors */
+ CONTROL_FAKEDEFER,
+ CONTROL_FAKEREJECT,
+ CONTROL_FREEZE,
- (1<<ACL_WHERE_NOTSMTP)| /* no_multiline */
- (1<<ACL_WHERE_NOTSMTP_START),
+ CONTROL_NO_CALLOUT_FLUSH,
+ CONTROL_NO_DELAY_FLUSH,
+ CONTROL_NO_ENFORCE_SYNC,
+#ifdef WITH_CONTENT_SCAN
+ CONTROL_NO_MBOX_UNSPOOL,
+#endif
+ CONTROL_NO_MULTILINE,
+ CONTROL_NO_PIPELINING,
- (1<<ACL_WHERE_NOTSMTP)| /* no_pipelining */
- (1<<ACL_WHERE_NOTSMTP_START),
+ CONTROL_QUEUE_ONLY,
+ CONTROL_SUBMISSION,
+ CONTROL_SUPPRESS_LOCAL_FIXUPS,
+#ifdef SUPPORT_I18N
+ CONTROL_UTF8_DOWNCONVERT,
+#endif
+};
- (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. */
+/* Structure listing various control arguments, with their characteristics.
+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. */
typedef struct control_def {
- uschar *name;
- int value; /* CONTROL_xxx value */
- BOOL has_option; /* Has /option(s) following */
+ uschar *name;
+ BOOL has_option; /* Has /option(s) following */
+ unsigned forbids; /* bitmap of dis-allowed times */
} control_def;
static control_def controls_list[] = {
- { US"allow_auth_unadvertised", CONTROL_AUTH_UNADVERTISED, FALSE },
+ { US"allow_auth_unadvertised", FALSE,
+ (unsigned)
+ ~((1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO))
+ },
#ifdef EXPERIMENTAL_BRIGHTMAIL
- { US"bmi_run", CONTROL_BMI_RUN, FALSE },
+ { US"bmi_run", FALSE, 0 },
#endif
- { US"debug", CONTROL_DEBUG, TRUE },
+ { US"caseful_local_part", FALSE, (unsigned) ~(1<<ACL_WHERE_RCPT) },
+ { US"caselower_local_part", FALSE, (unsigned) ~(1<<ACL_WHERE_RCPT) },
+ { US"cutthrough_delivery", TRUE, 0 },
+ { US"debug", TRUE, 0 },
+
#ifndef DISABLE_DKIM
- { US"dkim_disable_verify", CONTROL_DKIM_VERIFY, FALSE },
+ { US"dkim_disable_verify", FALSE,
+ (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)|
+# ifndef DISABLE_PRDR
+ (1<<ACL_WHERE_PRDR)|
+# endif
+ (1<<ACL_WHERE_NOTSMTP_START)
+ },
#endif
- { US"dscp", CONTROL_DSCP, 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, 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 EXPERIMENTAL_DMARC
+ { US"dmarc_disable_verify", FALSE,
+ (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ },
+ { US"dmarc_enable_forensic", FALSE,
+ (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ },
+#endif
+
+ { US"dscp", TRUE,
+ (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)|(1<<ACL_WHERE_NOTQUIT)
+ },
+ { US"enforce_sync", FALSE,
+ (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ },
+
+ /* Pseudo-value for decode errors */
+ { US"error", FALSE, 0 },
+
+ { US"fakedefer", TRUE,
+ (unsigned)
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|
+ (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+#ifndef DISABLE_PRDR
+ (1<<ACL_WHERE_PRDR)|
+#endif
+ (1<<ACL_WHERE_MIME))
+ },
+ { US"fakereject", TRUE,
+ (unsigned)
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|
+ (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+#ifndef DISABLE_PRDR
+ (1<<ACL_WHERE_PRDR)|
+#endif
+ (1<<ACL_WHERE_MIME))
+ },
+ { US"freeze", TRUE,
+ (unsigned)
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|
+ (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+ // (1<<ACL_WHERE_PRDR)| /* Not allow one user to freeze for all */
+ (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_MIME))
+ },
+
+ { US"no_callout_flush", FALSE,
+ (1<<ACL_WHERE_NOTSMTP)| (1<<ACL_WHERE_NOTSMTP_START)
+ },
+ { US"no_delay_flush", FALSE,
+ (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ },
+
+ { US"no_enforce_sync", FALSE,
+ (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ },
#ifdef WITH_CONTENT_SCAN
- { US"no_mbox_unspool", CONTROL_NO_MBOX_UNSPOOL, FALSE },
+ { US"no_mbox_unspool", FALSE,
+ (unsigned)
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|
+ (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+ // (1<<ACL_WHERE_PRDR)| /* Not allow one user to freeze for all */
+ (1<<ACL_WHERE_MIME))
+ },
#endif
- { US"fakedefer", CONTROL_FAKEDEFER, TRUE },
- { US"fakereject", CONTROL_FAKEREJECT, TRUE },
- { US"submission", CONTROL_SUBMISSION, TRUE },
- { US"suppress_local_fixups", CONTROL_SUPPRESS_LOCAL_FIXUPS, FALSE },
- { US"cutthrough_delivery", CONTROL_CUTTHROUGH_DELIVERY, FALSE }
- };
+ { US"no_multiline_responses", FALSE,
+ (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ },
+ { US"no_pipelining", FALSE,
+ (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ },
+
+ { US"queue_only", FALSE,
+ (unsigned)
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|
+ (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+ // (1<<ACL_WHERE_PRDR)| /* Not allow one user to freeze for all */
+ (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_MIME))
+ },
+ { US"submission", TRUE,
+ (unsigned)
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|(1<<ACL_WHERE_PREDATA))
+ },
+ { US"suppress_local_fixups", FALSE,
+ (unsigned)
+ ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|(1<<ACL_WHERE_PREDATA)|
+ (1<<ACL_WHERE_NOTSMTP_START))
+ },
+#ifdef SUPPORT_I18N
+ { US"utf8_downconvert", TRUE, 0 }
+#endif
+};
/* Support data structures for Client SMTP Authorization. acl_verify_csa()
caches its result in a tree to avoid repeated DNS queries. The result is an
/* Enable recursion between acl_check_internal() and acl_check_condition() */
-static int acl_check_wargs(int, address_item *, uschar *, int, uschar **,
+static int acl_check_wargs(int, address_item *, const uschar *, int, uschar **,
uschar **);
+/*************************************************
+* Find control in list *
+*************************************************/
+
+/* The lists are always in order, so binary chop can be used.
+
+Arguments:
+ name the control name to search for
+ ol the first entry in the control list
+ last one more than the offset of the last entry in the control list
+
+Returns: index of a control entry, or -1 if not found
+*/
+
+static int
+find_control(const uschar * name, control_def * ol, int last)
+{
+int first = 0;
+while (last > first)
+ {
+ int middle = (first + last)/2;
+ uschar * s = ol[middle].name;
+ int c = Ustrncmp(name, s, Ustrlen(s));
+ if (c == 0) return middle;
+ else if (c > 0) first = middle + 1;
+ else last = middle;
+ }
+return -1;
+}
+
+
+
+/*************************************************
+* Pick out condition from list *
+*************************************************/
+
+/* Use a binary chop method
+
+Arguments:
+ name name to find
+ list list of conditions
+ end size of list
+
+Returns: offset in list, or -1 if not found
+*/
+
+static int
+acl_checkcondition(uschar * name, condition_def * list, int end)
+{
+int start = 0;
+while (start < end)
+ {
+ int mid = (start + end)/2;
+ int c = Ustrcmp(name, list[mid].name);
+ if (c == 0) return mid;
+ if (c < 0) end = mid;
+ else start = mid + 1;
+ }
+return -1;
+}
+
+
/*************************************************
* Pick out name from list *
*************************************************/
/* If a verb is unrecognized, it may be another condition or modifier that
continues the previous verb. */
- v = acl_checkname(name, verbs, sizeof(verbs)/sizeof(char *));
- if (v < 0)
+ if ((v = acl_checkname(name, verbs, nelem(verbs))) < 0)
{
if (this == NULL)
{
/* Handle a condition or modifier. */
- c = acl_checkname(name, conditions, sizeof(conditions)/sizeof(char *));
- if (c < 0)
+ if ((c = acl_checkcondition(name, conditions, nelem(conditions))) < 0)
{
*error = string_sprintf("unknown ACL condition/modifier in \"%s\"",
saveline);
/* The modifiers may not be negated */
- if (negated && cond_modifiers[c])
+ if (negated && conditions[c].is_modifier)
{
*error = string_sprintf("ACL error: negation is not allowed with "
- "\"%s\"", conditions[c]);
+ "\"%s\"", conditions[c].name);
return NULL;
}
this->verb != ACL_DISCARD)
{
*error = string_sprintf("ACL error: \"%s\" is not allowed with \"%s\"",
- conditions[c], verbs[this->verb]);
+ conditions[c].name, verbs[this->verb]);
return NULL;
}
if (*s++ != '=')
{
*error = string_sprintf("\"=\" missing after ACL \"%s\" %s", name,
- cond_modifiers[c]? US"modifier" : US"condition");
+ conditions[c].is_modifier ? US"modifier" : US"condition");
return NULL;
}
while (isspace(*s)) s++;
*/
static void
-setup_header(uschar *hstring)
+setup_header(const uschar *hstring)
{
-uschar *p, *q;
+const uschar *p, *q;
int hlen = Ustrlen(hstring);
/* Ignore any leading newlines */
/* An empty string does nothing; ensure exactly one final newline. */
if (hlen <= 0) return;
-if (hstring[--hlen] != '\n') hstring = string_sprintf("%s\n", hstring);
-else while(hstring[--hlen] == '\n') hstring[hlen+1] = '\0';
+if (hstring[--hlen] != '\n') /* no newline */
+ q = string_sprintf("%s\n", hstring);
+else if (hstring[hlen-1] == '\n') /* double newline */
+ {
+ uschar * s = string_copy(hstring);
+ while(s[--hlen] == '\n')
+ s[hlen+1] = '\0';
+ q = s;
+ }
+else
+ q = hstring;
/* Loop for multiple header lines, taking care about continuations */
-for (p = q = hstring; *p != 0; )
+for (p = q; *p != 0; )
{
- uschar *s;
+ const uschar *s;
+ uschar * hdr;
int newtype = htype_add_bot;
header_line **hptr = &acl_added_headers;
for (;;)
{
- q = Ustrchr(q, '\n');
+ q = Ustrchr(q, '\n'); /* we know there was a newline */
if (*(++q) != ' ' && *q != '\t') break;
}
if (*s == ':' || !isgraph(*s)) break;
}
- s = string_sprintf("%s%.*s", (*s == ':')? "" : "X-ACL-Warn: ", (int) (q - p), p);
- hlen = Ustrlen(s);
+ hdr = string_sprintf("%s%.*s", (*s == ':')? "" : "X-ACL-Warn: ", (int) (q - p), p);
+ hlen = Ustrlen(hdr);
/* See if this line has already been added */
while (*hptr != NULL)
{
- if (Ustrncmp((*hptr)->text, s, hlen) == 0) break;
+ if (Ustrncmp((*hptr)->text, hdr, hlen) == 0) break;
hptr = &((*hptr)->next);
}
if (*hptr == NULL)
{
header_line *h = store_get(sizeof(header_line));
- h->text = s;
+ h->text = hdr;
h->next = NULL;
h->type = newtype;
h->slen = hlen;
fn_hdrs_added(void)
{
uschar * ret = NULL;
+int size = 0;
+int ptr = 0;
header_line * h = acl_added_headers;
uschar * s;
uschar * cp;
-int size = 0;
-int ptr = 0;
if (!h) return NULL;
if (cp[1] == '\0') break;
/* contains embedded newline; needs doubling */
- ret = string_cat(ret, &size, &ptr, s, cp-s+1);
- ret = string_cat(ret, &size, &ptr, US"\n", 1);
+ ret = string_catn(ret, &size, &ptr, s, cp-s+1);
+ ret = string_catn(ret, &size, &ptr, US"\n", 1);
s = cp+1;
}
/* last bit of header */
- ret = string_cat(ret, &size, &ptr, s, cp-s+1); /* newline-sep list */
+ ret = string_catn(ret, &size, &ptr, s, cp-s+1); /* newline-sep list */
}
while((h = h->next));
*/
static void
-setup_remove_header(uschar *hnames)
+setup_remove_header(const uschar *hnames)
{
if (*hnames != 0)
- {
- if (acl_removed_headers == NULL)
- acl_removed_headers = hnames;
- else
- acl_removed_headers = string_sprintf("%s : %s", acl_removed_headers, hnames);
- }
+ acl_removed_headers = acl_removed_headers
+ ? string_sprintf("%s : %s", acl_removed_headers, hnames)
+ : string_copy(hnames);
}
Arguments:
dnsa the DNS answer block
dnss a DNS scan block for us to use
- reset option specifing what portion to scan, as described above
+ reset option specifying what portion to scan, as described above
target the target hostname to use for matching RR names
Returns: CSA_OK successfully authorized
if (rr->type != T_A
#if HAVE_IPV6
&& rr->type != T_AAAA
- #ifdef SUPPORT_A6
- && rr->type != T_A6
- #endif
#endif
) continue;
*/
static int
-acl_verify_csa(uschar *domain)
+acl_verify_csa(const uschar *domain)
{
tree_node *t;
-uschar *found, *p;
+const uschar *found;
int priority, weight, port;
dns_answer dnsa;
dns_scan dnss;
if (domain[0] == '[')
{
- uschar *start = Ustrchr(domain, ':');
+ const uschar *start = Ustrchr(domain, ':');
if (start == NULL) start = domain;
domain = string_copyn(start + 1, Ustrlen(start) - 2);
}
/* Scan the reply for well-formed CSA SRV records. */
for (rr = dns_next_rr(&dnsa, &dnss, RESET_ANSWERS);
- rr != NULL;
- rr = dns_next_rr(&dnsa, &dnss, RESET_NEXT))
+ rr;
+ rr = dns_next_rr(&dnsa, &dnss, RESET_NEXT)) if (rr->type == T_SRV)
{
- if (rr->type != T_SRV) continue;
+ const uschar * p = rr->data;
/* Extract the numerical SRV fields (p is incremented) */
- p = rr->data;
GETSHORT(priority, p);
GETSHORT(weight, p);
GETSHORT(port, p);
assertion: legitimate SMTP clients are all explicitly authorized with CSA
SRV records of their own. */
- if (found != domain)
- {
- if (port & 1)
- return t->data.val = CSA_FAIL_EXPLICIT;
- else
- return t->data.val = CSA_UNKNOWN;
- }
+ if (Ustrcmp(found, domain) != 0)
+ return t->data.val = port & 1 ? CSA_FAIL_EXPLICIT : CSA_UNKNOWN;
/* This CSA SRV record refers directly to our domain, so we check the value
in the weight field to work out the domain's authorization. 0 and 1 are
type = T_A;
-#if HAVE_IPV6 && defined(SUPPORT_A6)
-DNS_LOOKUP_AGAIN:
-#endif
-
+lookup_dnssec_authenticated = NULL;
switch (dns_lookup(&dnsa, target, type, NULL))
{
/* If something bad happened (most commonly DNS_AGAIN), defer. */
default:
- return t->data.val = CSA_DEFER_ADDR;
+ return t->data.val = CSA_DEFER_ADDR;
/* If the query succeeded, scan the addresses and return the result. */
case DNS_SUCCEED:
- rc = acl_verify_csa_address(&dnsa, &dnss, RESET_ANSWERS, target);
- if (rc != CSA_FAIL_NOADDR) return t->data.val = rc;
- /* else fall through */
+ rc = acl_verify_csa_address(&dnsa, &dnss, RESET_ANSWERS, target);
+ if (rc != CSA_FAIL_NOADDR) return t->data.val = rc;
+ /* else fall through */
/* If the target has no IP addresses, the client cannot have an authorized
IP address. However, if the target site uses A6 records (not AAAA records)
case DNS_NOMATCH:
case DNS_NODATA:
-
- #if HAVE_IPV6 && defined(SUPPORT_A6)
- if (type == T_AAAA) { type = T_A6; goto DNS_LOOKUP_AGAIN; }
- #endif
-
- return t->data.val = CSA_FAIL_NOADDR;
+ return t->data.val = CSA_FAIL_NOADDR;
}
}
*************************************************/
enum { VERIFY_REV_HOST_LKUP, VERIFY_CERT, VERIFY_HELO, VERIFY_CSA, VERIFY_HDR_SYNTAX,
- VERIFY_NOT_BLIND, VERIFY_HDR_SNDR, VERIFY_SNDR, VERIFY_RCPT
+ VERIFY_NOT_BLIND, VERIFY_HDR_SNDR, VERIFY_SNDR, VERIFY_RCPT,
+ VERIFY_HDR_NAMES_ASCII
};
typedef struct {
uschar * name;
unsigned alt_opt_sep; /* >0 Non-/ option separator (custom parser) */
} verify_type_t;
static verify_type_t verify_type_list[] = {
- { US"reverse_host_lookup", VERIFY_REV_HOST_LKUP, ~0, TRUE, 0 },
+ { US"reverse_host_lookup", VERIFY_REV_HOST_LKUP, ~0, FALSE, 0 },
{ US"certificate", VERIFY_CERT, ~0, TRUE, 0 },
{ US"helo", VERIFY_HELO, ~0, TRUE, 0 },
{ US"csa", VERIFY_CSA, ~0, FALSE, 0 },
{ US"sender", VERIFY_SNDR, (1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)
|(1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP),
FALSE, 6 },
- { US"recipient", VERIFY_RCPT, (1<<ACL_WHERE_RCPT), FALSE, 0 }
+ { US"recipient", VERIFY_RCPT, (1<<ACL_WHERE_RCPT), FALSE, 0 },
+ { US"header_names_ascii", VERIFY_HDR_NAMES_ASCII, (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP), TRUE, 0 }
};
*/
static int
-acl_verify(int where, address_item *addr, uschar *arg,
+acl_verify(int where, address_item *addr, const uschar *arg,
uschar **user_msgptr, uschar **log_msgptr, int *basic_errno)
{
int sep = '/';
*/
uschar *slash = Ustrchr(arg, '/');
-uschar *list = arg;
+const uschar *list = arg;
uschar *ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size);
verify_type_t * vp;
{
case VERIFY_REV_HOST_LKUP:
if (sender_host_address == NULL) return OK;
- return acl_verify_reverse(user_msgptr, log_msgptr);
+ if ((rc = acl_verify_reverse(user_msgptr, log_msgptr)) == DEFER)
+ while ((ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)))
+ if (strcmpic(ss, US"defer_ok") == 0)
+ return OK;
+ return rc;
case VERIFY_CERT:
/* TLS certificate verification is done at STARTTLS time; here we just
test whether it was successful or not. (This is for optional verification; for
mandatory verification, the connection doesn't last this long.) */
- if (tls_in.certificate_verified) return OK;
- *user_msgptr = US"no verified certificate";
- return FAIL;
+ if (tls_in.certificate_verified) return OK;
+ *user_msgptr = US"no verified certificate";
+ return FAIL;
case VERIFY_HELO:
/* We can test the result of optional HELO verification that might have
occurred earlier. If not, we can attempt the verification now. */
- if (!helo_verified && !helo_verify_failed) smtp_verify_helo();
- return helo_verified? OK : FAIL;
+ if (!helo_verified && !helo_verify_failed) smtp_verify_helo();
+ return helo_verified? OK : FAIL;
case VERIFY_CSA:
/* Do Client SMTP Authorization checks in a separate function, and turn the
result code into user-friendly strings. */
- rc = acl_verify_csa(list);
- *log_msgptr = *user_msgptr = string_sprintf("client SMTP authorization %s",
+ rc = acl_verify_csa(list);
+ *log_msgptr = *user_msgptr = string_sprintf("client SMTP authorization %s",
csa_reason_string[rc]);
- csa_status = csa_status_string[rc];
- DEBUG(D_acl) debug_printf("CSA result %s\n", csa_status);
- return csa_return_code[rc];
+ csa_status = csa_status_string[rc];
+ DEBUG(D_acl) debug_printf("CSA result %s\n", csa_status);
+ return csa_return_code[rc];
case VERIFY_HDR_SYNTAX:
/* Check that all relevant header lines have the correct syntax. If there is
always). */
rc = verify_check_headers(log_msgptr);
+ if (rc != OK && *log_msgptr)
+ if (smtp_return_error_details)
+ *user_msgptr = string_sprintf("Rejected after DATA: %s", *log_msgptr);
+ else
+ acl_verify_message = *log_msgptr;
+ return rc;
+
+ case VERIFY_HDR_NAMES_ASCII:
+ /* Check that all header names are true 7 bit strings
+ See RFC 5322, 2.2. and RFC 6532, 3. */
+
+ rc = verify_check_header_names_ascii(log_msgptr);
if (rc != OK && smtp_return_error_details && *log_msgptr != NULL)
*user_msgptr = string_sprintf("Rejected after DATA: %s", *log_msgptr);
return rc;
while (isspace(*ss)) ss++;
if (*ss++ == '=')
{
+ const uschar * sublist = ss;
int optsep = ',';
uschar *opt;
uschar buffer[256];
- while (isspace(*ss)) ss++;
+ while (isspace(*sublist)) sublist++;
- while ((opt = string_nextinlist(&ss, &optsep, buffer, sizeof(buffer)))
+ while ((opt = string_nextinlist(&sublist, &optsep, buffer, sizeof(buffer)))
!= NULL)
{
callout_opt_t * op;
if (verify_header_sender)
{
int verrno;
- rc = verify_check_header_address(user_msgptr, log_msgptr, callout,
+
+ if ((rc = verify_check_header_address(user_msgptr, log_msgptr, callout,
callout_overall, callout_connect, se_mailfrom, pm_mailfrom, verify_options,
- &verrno);
- if (rc != OK)
+ &verrno)) != OK)
{
*basic_errno = verrno;
if (smtp_return_error_details)
{
- if (*user_msgptr == NULL && *log_msgptr != NULL)
+ if (!*user_msgptr && *log_msgptr)
*user_msgptr = string_sprintf("Rejected after DATA: %s", *log_msgptr);
if (rc == DEFER) acl_temp_details = TRUE;
}
specified. Caching elsewhere, for instance in the DNS resolver and in the
callout handling, should ensure that this is not terribly inefficient. */
-else if (verify_sender_address != NULL)
+else if (verify_sender_address)
{
- if ((verify_options & (vopt_callout_recipsender|vopt_callout_recippmaster))
- != 0)
+ if ((verify_options & (vopt_callout_recipsender|vopt_callout_recippmaster)))
{
*log_msgptr = US"use_sender or use_postmaster cannot be used for a "
"sender verify callout";
callout that was done previously). If the "routed" flag is not set, routing
must have failed, so we use the saved return code. */
- if (testflag(sender_vaddr, af_verify_routed)) rc = OK; else
+ if (testflag(sender_vaddr, af_verify_routed))
+ rc = OK;
+ else
{
rc = sender_vaddr->special_action;
*basic_errno = sender_vaddr->basic_errno;
uschar *save_address_data = deliver_address_data;
sender_vaddr = deliver_make_addr(verify_sender_address, TRUE);
+#ifdef SUPPORT_I18N
+ if ((sender_vaddr->prop.utf8_msg = message_smtputf8))
+ {
+ sender_vaddr->prop.utf8_downcvt = message_utf8_downconvert == 1;
+ sender_vaddr->prop.utf8_downcvt_maybe = message_utf8_downconvert == -1;
+ }
+#endif
if (no_details) setflag(sender_vaddr, af_sverify_told);
if (verify_sender_address[0] != 0)
{
HDEBUG(D_acl) debug_printf("----------- end verify ------------\n");
- if (rc == OK)
- {
- if (Ustrcmp(sender_vaddr->address, verify_sender_address) != 0)
- {
- DEBUG(D_acl) debug_printf("sender %s verified ok as %s\n",
- verify_sender_address, sender_vaddr->address);
- }
- else
- {
- DEBUG(D_acl) debug_printf("sender %s verified ok\n",
- verify_sender_address);
- }
- }
- else *basic_errno = sender_vaddr->basic_errno;
+ if (rc != OK)
+ *basic_errno = sender_vaddr->basic_errno;
+ else
+ DEBUG(D_acl)
+ {
+ if (Ustrcmp(sender_vaddr->address, verify_sender_address) != 0)
+ debug_printf("sender %s verified ok as %s\n",
+ verify_sender_address, sender_vaddr->address);
+ else
+ debug_printf("sender %s verified ok\n",
+ verify_sender_address);
+ }
}
- else rc = OK; /* Null sender */
+ else
+ rc = OK; /* Null sender */
/* Cache the result code */
/* Put the sender address_data value into $sender_address_data */
- sender_address_data = sender_vaddr->p.address_data;
+ sender_address_data = sender_vaddr->prop.address_data;
}
/* A recipient address just gets a straightforward verify; again we must handle
if (testflag((&addr2), af_pass_message)) acl_temp_details = TRUE;
/* Make $address_data visible */
- deliver_address_data = addr2.p.address_data;
+ deliver_address_data = addr2.prop.address_data;
}
/* We have a result from the relevant test. Handle defer overrides first. */
if (rc != OK && verify_sender_address != NULL)
{
if (rc != DEFER)
- {
*log_msgptr = *user_msgptr = US"Sender verify failed";
- }
else if (*basic_errno != ERRNO_CALLOUTDEFER)
- {
*log_msgptr = *user_msgptr = US"Could not complete sender verify";
- }
else
{
*log_msgptr = US"Could not complete sender verify callout";
BAD_VERIFY:
*log_msgptr = string_sprintf("expected \"sender[=address]\", \"recipient\", "
- "\"helo\", \"header_syntax\", \"header_sender\" or "
- "\"reverse_host_lookup\" at start of ACL condition "
+ "\"helo\", \"header_syntax\", \"header_sender\", \"header_names_ascii\" "
+ "or \"reverse_host_lookup\" at start of ACL condition "
"\"verify %s\"", arg);
return ERROR;
}
*/
static int
-decode_control(uschar *arg, uschar **pptr, int where, uschar **log_msgptr)
+decode_control(const uschar *arg, const uschar **pptr, int where, uschar **log_msgptr)
{
-int len;
-control_def *d;
+int idx, len;
+control_def * d;
-for (d = controls_list;
- d < controls_list + sizeof(controls_list)/sizeof(control_def);
- d++)
- {
- len = Ustrlen(d->name);
- if (Ustrncmp(d->name, arg, len) == 0) break;
- }
-
-if (d >= controls_list + sizeof(controls_list)/sizeof(control_def) ||
- (arg[len] != 0 && (!d->has_option || arg[len] != '/')))
+if ( (idx = find_control(arg, controls_list, nelem(controls_list))) < 0
+ || ( arg[len = Ustrlen((d = controls_list+idx)->name)] != 0
+ && (!d->has_option || arg[len] != '/')
+ ) )
{
*log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
return CONTROL_ERROR;
}
*pptr = arg + len;
-return d->value;
+return idx;
}
*/
static int
-acl_ratelimit(uschar *arg, int where, uschar **log_msgptr)
+acl_ratelimit(const uschar *arg, int where, uschar **log_msgptr)
{
double limit, period, count;
uschar *ss;
sender_rate_limit = string_nextinlist(&arg, &sep, NULL, 0);
if (sender_rate_limit == NULL)
- limit = -1.0;
-else
- {
- limit = Ustrtod(sender_rate_limit, &ss);
- if (tolower(*ss) == 'k') { limit *= 1024.0; ss++; }
- else if (tolower(*ss) == 'm') { limit *= 1024.0*1024.0; ss++; }
- else if (tolower(*ss) == 'g') { limit *= 1024.0*1024.0*1024.0; ss++; }
- }
+ return ratelimit_error(log_msgptr, "sender rate limit not set");
+
+limit = Ustrtod(sender_rate_limit, &ss);
+if (tolower(*ss) == 'k') { limit *= 1024.0; ss++; }
+else if (tolower(*ss) == 'm') { limit *= 1024.0*1024.0; ss++; }
+else if (tolower(*ss) == 'g') { limit *= 1024.0*1024.0*1024.0; ss++; }
+
if (limit < 0.0 || *ss != '\0')
return ratelimit_error(log_msgptr,
"\"%s\" is not a positive number", sender_rate_limit);
else if (strcmpic(ss, US"per_byte") == 0)
{
/* If we have not yet received the message data and there was no SIZE
- declaration on the MAIL comand, then it's safe to just use a value of
+ declaration on the MAIL command, then it's safe to just use a value of
zero and let the recorded rate decay as if nothing happened. */
RATE_SET(mode, PER_MAIL);
if (where > ACL_WHERE_NOTSMTP) badacl = TRUE;
size of the event per the period size, ignoring the lack of events outside
the current period and regardless of where the event falls in the period. So,
if the interval was so long that the calculated rate is unhelpfully small, we
- re-intialize the rate. In the absence of higher-rate bursts, the condition
+ re-initialize the rate. In the absence of higher-rate bursts, the condition
below is true if the interval is greater than the period. */
if (dbd->rate < count) dbd->rate = count;
/* We create the formatted version of the sender's rate very late in
order to ensure that it is done using the correct storage pool. */
-store_pool = old_pool;
-sender_rate = string_sprintf("%.1f", dbd->rate);
+store_pool = old_pool;
+sender_rate = string_sprintf("%.1f", dbd->rate);
+
+HDEBUG(D_acl)
+ debug_printf("ratelimit computed rate %s\n", sender_rate);
+
+return rc;
+}
+
+
+
+/*************************************************
+* The udpsend ACL modifier *
+*************************************************/
+
+/* Called by acl_check_condition() below.
+
+Arguments:
+ arg the option string for udpsend=
+ log_msgptr for error messages
+
+Returns: OK - Completed.
+ DEFER - Problem with DNS lookup.
+ ERROR - Syntax error in options.
+*/
+
+static int
+acl_udpsend(const uschar *arg, uschar **log_msgptr)
+{
+int sep = 0;
+uschar *hostname;
+uschar *portstr;
+uschar *portend;
+host_item *h;
+int portnum;
+int len;
+int r, s;
+uschar * errstr;
+
+hostname = string_nextinlist(&arg, &sep, NULL, 0);
+portstr = string_nextinlist(&arg, &sep, NULL, 0);
+
+if (!hostname)
+ {
+ *log_msgptr = US"missing destination host in \"udpsend\" modifier";
+ return ERROR;
+ }
+if (!portstr)
+ {
+ *log_msgptr = US"missing destination port in \"udpsend\" modifier";
+ return ERROR;
+ }
+if (!arg)
+ {
+ *log_msgptr = US"missing datagram payload in \"udpsend\" modifier";
+ return ERROR;
+ }
+portnum = Ustrtol(portstr, &portend, 10);
+if (*portend != '\0')
+ {
+ *log_msgptr = US"bad destination port in \"udpsend\" modifier";
+ return ERROR;
+ }
+
+/* Make a single-item host list. */
+h = store_get(sizeof(host_item));
+memset(h, 0, sizeof(host_item));
+h->name = hostname;
+h->port = portnum;
+h->mx = MX_NONE;
+
+if (string_is_ip_address(hostname, NULL))
+ h->address = hostname, r = HOST_FOUND;
+else
+ r = host_find_byname(h, NULL, 0, NULL, FALSE);
+if (r == HOST_FIND_FAILED || r == HOST_FIND_AGAIN)
+ {
+ *log_msgptr = US"DNS lookup failed in \"udpsend\" modifier";
+ return DEFER;
+ }
+
+HDEBUG(D_acl)
+ debug_printf("udpsend [%s]:%d %s\n", h->address, portnum, arg);
+
+r = s = ip_connectedsocket(SOCK_DGRAM, h->address, portnum, portnum,
+ 1, NULL, &errstr);
+if (r < 0) goto defer;
+len = Ustrlen(arg);
+r = send(s, arg, len, 0);
+if (r < 0)
+ {
+ errstr = US strerror(errno);
+ close(s);
+ goto defer;
+ }
+close(s);
+if (r < len)
+ {
+ *log_msgptr =
+ string_sprintf("\"udpsend\" truncated from %d to %d octets", len, r);
+ return DEFER;
+ }
HDEBUG(D_acl)
- debug_printf("ratelimit computed rate %s\n", sender_rate);
+ debug_printf("udpsend %d bytes\n", r);
-return rc;
+return OK;
+
+defer:
+*log_msgptr = string_sprintf("\"udpsend\" failed: %s", errstr);
+return DEFER;
}
{
uschar *user_message = NULL;
uschar *log_message = NULL;
-uschar *debug_tag = NULL;
-uschar *debug_opts = NULL;
-uschar *p = NULL;
int rc = OK;
#ifdef WITH_CONTENT_SCAN
-int sep = '/';
+int sep = -'/';
#endif
for (; cb != NULL; cb = cb->next)
{
- uschar *arg;
+ const uschar *arg;
int control_type;
/* The message and log_message items set up messages to be used in
if (cb->type == ACLC_MESSAGE)
{
+ HDEBUG(D_acl) debug_printf(" message: %s\n", cb->arg);
user_message = cb->arg;
continue;
}
if (cb->type == ACLC_LOG_MESSAGE)
{
+ HDEBUG(D_acl) debug_printf("l_message: %s\n", cb->arg);
log_message = cb->arg;
continue;
}
of them, but not for all, because expansion happens down in some lower level
checking functions in some cases. */
- if (cond_expand_at_top[cb->type])
+ if (!conditions[cb->type].expand_at_top)
+ arg = cb->arg;
+ else if (!(arg = expand_string(cb->arg)))
{
- arg = expand_string(cb->arg);
- if (arg == NULL)
- {
- if (expand_string_forcedfail) continue;
- *log_msgptr = string_sprintf("failed to expand ACL string \"%s\": %s",
- cb->arg, expand_string_message);
- return search_find_defer? DEFER : ERROR;
- }
+ if (expand_string_forcedfail) continue;
+ *log_msgptr = string_sprintf("failed to expand ACL string \"%s\": %s",
+ cb->arg, expand_string_message);
+ return search_find_defer ? DEFER : ERROR;
}
- else arg = cb->arg;
/* Show condition, and expanded condition if it's different */
{
int lhswidth = 0;
debug_printf("check %s%s %n",
- (!cond_modifiers[cb->type] && cb->u.negated)? "!":"",
- conditions[cb->type], &lhswidth);
+ (!conditions[cb->type].is_modifier && cb->u.negated)? "!":"",
+ conditions[cb->type].name, &lhswidth);
if (cb->type == ACLC_SET)
{
/* Check that this condition makes sense at this time */
- if ((cond_forbids[cb->type] & (1 << where)) != 0)
+ if ((conditions[cb->type].forbids & (1 << where)) != 0)
{
*log_msgptr = string_sprintf("cannot %s %s condition in %s ACL",
- cond_modifiers[cb->type]? "use" : "test",
- conditions[cb->type], acl_wherenames[where]);
+ conditions[cb->type].is_modifier ? "use" : "test",
+ conditions[cb->type].name, acl_wherenames[where]);
return ERROR;
}
/* 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 */
+ if (*arg == '-'
+ ? Ustrspn(arg+1, "0123456789") == Ustrlen(arg+1) /* Negative number */
+ : Ustrspn(arg, "0123456789") == Ustrlen(arg)) /* Digits, or empty */
rc = (Uatoi(arg) == 0)? FAIL : OK;
else
rc = (strcmpic(arg, US"no") == 0 ||
break;
case ACLC_CONTROL:
- control_type = decode_control(arg, &p, where, log_msgptr);
-
- /* 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)
{
- case CONTROL_AUTH_UNADVERTISED:
- allow_auth_unadvertised = TRUE;
- break;
-
- #ifdef EXPERIMENTAL_BRIGHTMAIL
- case CONTROL_BMI_RUN:
- bmi_run = 1;
- break;
- #endif
-
- #ifndef DISABLE_DKIM
- case CONTROL_DKIM_VERIFY:
- dkim_disable_verify = TRUE;
- break;
- #endif
-
- case CONTROL_DSCP:
- if (*p == '/')
- {
- int fd, af, level, optname, value;
- /* If we are acting on stdin, the setsockopt may fail if stdin is not
- a socket; we can accept that, we'll just debug-log failures anyway. */
- fd = fileno(smtp_in);
- af = ip_get_address_family(fd);
- if (af < 0)
- {
- HDEBUG(D_acl)
- debug_printf("smtp input is probably not a socket [%s], not setting DSCP\n",
- strerror(errno));
- break;
- }
- if (dscp_lookup(p+1, af, &level, &optname, &value))
- {
- if (setsockopt(fd, level, optname, &value, sizeof(value)) < 0)
- {
- HDEBUG(D_acl) debug_printf("failed to set input DSCP[%s]: %s\n",
- p+1, strerror(errno));
- }
- else
- {
- HDEBUG(D_acl) debug_printf("set input DSCP to \"%s\"\n", p+1);
- }
- }
- else
- {
- *log_msgptr = string_sprintf("unrecognised DSCP value in \"control=%s\"", arg);
- return ERROR;
- }
- }
- else
- {
- *log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
- return ERROR;
- }
- break;
-
- case CONTROL_ERROR:
- return ERROR;
-
- case CONTROL_CASEFUL_LOCAL_PART:
- deliver_localpart = addr->cc_local_part;
- break;
-
- case CONTROL_CASELOWER_LOCAL_PART:
- deliver_localpart = addr->lc_local_part;
- break;
-
- case CONTROL_ENFORCE_SYNC:
- smtp_enforce_sync = TRUE;
- break;
-
- case CONTROL_NO_ENFORCE_SYNC:
- 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_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;
- if (*p == '/')
- {
- uschar *pp = p + 1;
- while (*pp != 0) pp++;
- fake_response_text = expand_string(string_copyn(p+1, pp-p-1));
- p = pp;
- }
- else
- {
- /* Explicitly reset to default string */
- fake_response_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);
- 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:
- queue_only_policy = TRUE;
- break;
-
- case CONTROL_SUBMISSION:
- originator_name = US"";
- submission_mode = TRUE;
- 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-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++;
- submission_name = string_copy(parse_fix_phrase(p+6, pp-p-6,
- big_buffer, big_buffer_size));
- p = pp;
- }
- else break;
- }
- if (*p != 0)
- {
- *log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
- return ERROR;
- }
- break;
-
- case CONTROL_DEBUG:
- while (*p == '/')
- {
- if (Ustrncmp(p, "/tag=", 5) == 0)
- {
- uschar *pp = p + 5;
- while (*pp != '\0' && *pp != '/') pp++;
- debug_tag = string_copyn(p+5, pp-p-5);
- p = pp;
- }
- else if (Ustrncmp(p, "/opts=", 6) == 0)
- {
- uschar *pp = p + 6;
- while (*pp != '\0' && *pp != '/') pp++;
- debug_opts = string_copyn(p+6, pp-p-6);
- p = pp;
- }
- }
- debug_logging_activate(debug_tag, debug_opts);
- break;
+ const uschar *p = NULL;
+ control_type = decode_control(arg, &p, where, log_msgptr);
+
+ /* Check if this control makes sense at this time */
+
+ if (controls_list[control_type].forbids & (1 << where))
+ {
+ *log_msgptr = string_sprintf("cannot use \"control=%s\" in %s ACL",
+ controls_list[control_type].name, acl_wherenames[where]);
+ return ERROR;
+ }
+
+ switch(control_type)
+ {
+ case CONTROL_AUTH_UNADVERTISED:
+ allow_auth_unadvertised = TRUE;
+ break;
+
+ #ifdef EXPERIMENTAL_BRIGHTMAIL
+ case CONTROL_BMI_RUN:
+ bmi_run = 1;
+ break;
+ #endif
+
+ #ifndef DISABLE_DKIM
+ case CONTROL_DKIM_VERIFY:
+ dkim_disable_verify = TRUE;
+ #ifdef EXPERIMENTAL_DMARC
+ /* Since DKIM was blocked, skip DMARC too */
+ dmarc_disable_verify = TRUE;
+ dmarc_enable_forensic = FALSE;
+ #endif
+ break;
+ #endif
+
+ #ifdef EXPERIMENTAL_DMARC
+ case CONTROL_DMARC_VERIFY:
+ dmarc_disable_verify = TRUE;
+ break;
+
+ case CONTROL_DMARC_FORENSIC:
+ dmarc_enable_forensic = TRUE;
+ break;
+ #endif
+
+ case CONTROL_DSCP:
+ if (*p == '/')
+ {
+ int fd, af, level, optname, value;
+ /* If we are acting on stdin, the setsockopt may fail if stdin is not
+ a socket; we can accept that, we'll just debug-log failures anyway. */
+ fd = fileno(smtp_in);
+ af = ip_get_address_family(fd);
+ if (af < 0)
+ {
+ HDEBUG(D_acl)
+ debug_printf("smtp input is probably not a socket [%s], not setting DSCP\n",
+ strerror(errno));
+ break;
+ }
+ if (dscp_lookup(p+1, af, &level, &optname, &value))
+ {
+ if (setsockopt(fd, level, optname, &value, sizeof(value)) < 0)
+ {
+ HDEBUG(D_acl) debug_printf("failed to set input DSCP[%s]: %s\n",
+ p+1, strerror(errno));
+ }
+ else
+ {
+ HDEBUG(D_acl) debug_printf("set input DSCP to \"%s\"\n", p+1);
+ }
+ }
+ else
+ {
+ *log_msgptr = string_sprintf("unrecognised DSCP value in \"control=%s\"", arg);
+ return ERROR;
+ }
+ }
+ else
+ {
+ *log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
+ return ERROR;
+ }
+ break;
+
+ case CONTROL_ERROR:
+ return ERROR;
+
+ case CONTROL_CASEFUL_LOCAL_PART:
+ deliver_localpart = addr->cc_local_part;
+ break;
+
+ case CONTROL_CASELOWER_LOCAL_PART:
+ deliver_localpart = addr->lc_local_part;
+ break;
+
+ case CONTROL_ENFORCE_SYNC:
+ smtp_enforce_sync = TRUE;
+ break;
+
+ case CONTROL_NO_ENFORCE_SYNC:
+ 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_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_FAKEREJECT:
+ cancel_cutthrough_connection("fakereject");
+ case CONTROL_FAKEDEFER:
+ fake_response = (control_type == CONTROL_FAKEDEFER) ? DEFER : FAIL;
+ if (*p == '/')
+ {
+ const uschar *pp = p + 1;
+ while (*pp != 0) pp++;
+ fake_response_text = expand_string(string_copyn(p+1, pp-p-1));
+ p = pp;
+ }
+ else
+ {
+ /* Explicitly reset to default string */
+ fake_response_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);
+ 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;
+ }
+ cancel_cutthrough_connection("item frozen");
+ break;
+
+ case CONTROL_QUEUE_ONLY:
+ queue_only_policy = TRUE;
+ cancel_cutthrough_connection("queueing forced");
+ break;
+
+ case CONTROL_SUBMISSION:
+ originator_name = US"";
+ submission_mode = TRUE;
+ 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)
+ {
+ const uschar *pp = p + 8;
+ while (*pp != 0 && *pp != '/') pp++;
+ 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)
+ {
+ const uschar *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;
+ }
+ else break;
+ }
+ if (*p != 0)
+ {
+ *log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
+ return ERROR;
+ }
+ break;
+
+ case CONTROL_DEBUG:
+ {
+ uschar * debug_tag = NULL;
+ uschar * debug_opts = NULL;
+ BOOL kill = FALSE;
+
+ while (*p == '/')
+ {
+ const uschar * pp = p+1;
+ if (Ustrncmp(pp, "tag=", 4) == 0)
+ {
+ for (pp += 4; *pp && *pp != '/';) pp++;
+ debug_tag = string_copyn(p+5, pp-p-5);
+ }
+ else if (Ustrncmp(pp, "opts=", 5) == 0)
+ {
+ for (pp += 5; *pp && *pp != '/';) pp++;
+ debug_opts = string_copyn(p+6, pp-p-6);
+ }
+ else if (Ustrncmp(pp, "kill", 4) == 0)
+ {
+ for (pp += 4; *pp && *pp != '/';) pp++;
+ kill = TRUE;
+ }
+ else
+ while (*pp && *pp != '/') pp++;
+ p = pp;
+ }
- case CONTROL_SUPPRESS_LOCAL_FIXUPS:
- suppress_local_fixups = TRUE;
- break;
+ if (kill)
+ debug_logging_stop();
+ else
+ debug_logging_activate(debug_tag, debug_opts);
+ }
+ break;
+
+ case CONTROL_SUPPRESS_LOCAL_FIXUPS:
+ suppress_local_fixups = TRUE;
+ break;
+
+ case CONTROL_CUTTHROUGH_DELIVERY:
+#ifndef DISABLE_PRDR
+ if (prdr_requested)
+#else
+ if (0)
+#endif
+ /* Too hard to think about for now. We might in future cutthrough
+ the case where both sides handle prdr and this-node prdr acl
+ is "accept" */
+ *log_msgptr = string_sprintf("PRDR on %s reception\n", arg);
+ else
+ {
+ if (deliver_freeze)
+ *log_msgptr = US"frozen";
+ else if (queue_only_policy)
+ *log_msgptr = US"queue-only";
+ else if (fake_response == FAIL)
+ *log_msgptr = US"fakereject";
+ else
+ {
+ if (rcpt_count == 1)
+ {
+ cutthrough.delivery = TRUE;
+ while (*p == '/')
+ {
+ const uschar * pp = p+1;
+ if (Ustrncmp(pp, "defer=", 6) == 0)
+ {
+ pp += 6;
+ if (Ustrncmp(pp, "pass", 4) == 0) cutthrough.defer_pass = TRUE;
+ /* else if (Ustrncmp(pp, "spool") == 0) ; default */
+ }
+ else
+ while (*pp && *pp != '/') pp++;
+ p = pp;
+ }
+ }
+ break;
+ }
+ *log_msgptr = string_sprintf("\"control=%s\" on %s item",
+ arg, *log_msgptr);
+ }
+ return ERROR;
+
+#ifdef SUPPORT_I18N
+ case CONTROL_UTF8_DOWNCONVERT:
+ if (*p == '/')
+ {
+ if (p[1] == '1')
+ {
+ message_utf8_downconvert = 1;
+ addr->prop.utf8_downcvt = TRUE;
+ addr->prop.utf8_downcvt_maybe = FALSE;
+ p += 2;
+ break;
+ }
+ if (p[1] == '0')
+ {
+ message_utf8_downconvert = 0;
+ addr->prop.utf8_downcvt = FALSE;
+ addr->prop.utf8_downcvt_maybe = FALSE;
+ p += 2;
+ break;
+ }
+ if (p[1] == '-' && p[2] == '1')
+ {
+ message_utf8_downconvert = -1;
+ addr->prop.utf8_downcvt = FALSE;
+ addr->prop.utf8_downcvt_maybe = TRUE;
+ p += 3;
+ break;
+ }
+ *log_msgptr = US"bad option value for control=utf8_downconvert";
+ }
+ else
+ {
+ message_utf8_downconvert = 1;
+ addr->prop.utf8_downcvt = TRUE;
+ addr->prop.utf8_downcvt_maybe = FALSE;
+ break;
+ }
+ return ERROR;
+#endif
- case CONTROL_CUTTHROUGH_DELIVERY:
- if (deliver_freeze)
- {
- *log_msgptr = string_sprintf("\"control=%s\" on frozen item", arg);
- return ERROR;
- }
- if (queue_only_policy)
- {
- *log_msgptr = string_sprintf("\"control=%s\" on queue-only item", arg);
- return ERROR;
- }
- cutthrough_delivery = TRUE;
+ }
break;
}
- break;
#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);
+ /* Separate the regular expression and any optional parameters. */
+ const uschar * list = arg;
+ uschar *ss = string_nextinlist(&list, &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) {
+ /* Modify return code based upon the existence of options. */
+ while ((ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)))
if (strcmpic(ss, US"defer_ok") == 0 && rc == DEFER)
- {
- /* FAIL so that the message is passed to the next ACL */
- rc = FAIL;
- }
- }
+ rc = FAIL; /* FAIL so that the message is passed to the next ACL */
}
break;
#endif
debug_printf("delay skipped in -bh checking mode\n");
}
+ /* NOTE 1: Remember that we may be
+ dealing with stdin/stdout here, in addition to TCP/IP connections.
+ 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();
+
+#if !defined(NO_POLL_H) && defined (POLLRDHUP)
+ {
+ struct pollfd p;
+ nfds_t n = 0;
+ if (smtp_out)
+ {
+ p.fd = fileno(smtp_out);
+ p.events = POLLRDHUP;
+ n = 1;
+ }
+ if (poll(&p, n, delay*1000) > 0)
+ HDEBUG(D_acl) debug_printf("delay cancelled by peer close\n");
+ }
+#else
/* It appears to be impossible to detect that a TCP/IP connection has
gone away without reading from it. This means that we cannot shorten
the delay below if the client goes away, because we cannot discover
Exim process is not held up unnecessarily. However, it seems that we
can't. The poll() function does not do the right thing, and in any case
it is not always available.
-
- 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.
- 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);
+#endif
}
}
}
break;
- #ifdef WITH_OLD_DEMIME
- case ACLC_DEMIME:
- rc = demime(&arg);
- 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;
+ rc = FAIL;
break;
case ACLC_DKIM_STATUS:
break;
#endif
+ #ifdef EXPERIMENTAL_DMARC
+ case ACLC_DMARC_STATUS:
+ if (!dmarc_has_been_checked)
+ dmarc_process();
+ dmarc_has_been_checked = TRUE;
+ /* used long way of dmarc_exim_expand_query() in case we need more
+ * view into the process in the future. */
+ rc = match_isinlist(dmarc_exim_expand_query(DMARC_VERIFY_STATUS),
+ &arg,0,NULL,NULL,MCL_STRING,TRUE,NULL);
+ break;
+ #endif
+
case ACLC_DNSLISTS:
- rc = verify_check_dnsbl(&arg);
+ rc = verify_check_dnsbl(where, &arg, log_msgptr);
break;
case ACLC_DOMAINS:
rc = match_isinlist(addr->domain, &arg, 0, &domainlist_anchor,
- addr->domain_cache, MCL_DOMAIN, TRUE, &deliver_domain_data);
+ addr->domain_cache, MCL_DOMAIN, TRUE, CUSS &deliver_domain_data);
break;
/* The value in tls_cipher is the full cipher name, for example,
case ACLC_HOSTS:
rc = verify_check_this_host(&arg, sender_host_cache, NULL,
- (sender_host_address == NULL)? US"" : sender_host_address, &host_data);
- if (host_data != NULL) host_data = string_copy_malloc(host_data);
+ (sender_host_address == NULL)? US"" : sender_host_address,
+ CUSS &host_data);
+ if (rc == DEFER) *log_msgptr = search_error_message;
+ if (host_data) host_data = string_copy_malloc(host_data);
break;
case ACLC_LOCAL_PARTS:
rc = match_isinlist(addr->cc_local_part, &arg, 0,
&localpartlist_anchor, addr->localpart_cache, MCL_LOCALPART, TRUE,
- &deliver_localpart_data);
+ CUSS &deliver_localpart_data);
break;
case ACLC_LOG_REJECT_TARGET:
{
int logbits = 0;
int sep = 0;
- uschar *s = arg;
+ const uschar *s = arg;
uschar *ss;
- while ((ss = string_nextinlist(&s, &sep, big_buffer, big_buffer_size))
- != NULL)
+ while ((ss = string_nextinlist(&s, &sep, big_buffer, big_buffer_size)))
{
if (Ustrcmp(ss, "main") == 0) logbits |= LOG_MAIN;
else if (Ustrcmp(ss, "panic") == 0) logbits |= LOG_PANIC;
case ACLC_LOGWRITE:
{
int logbits = 0;
- uschar *s = arg;
+ const uschar *s = arg;
if (*s == ':')
{
s++;
break;
#ifdef WITH_CONTENT_SCAN
- case ACLC_MALWARE:
+ case ACLC_MALWARE: /* Run the malware backend. */
{
/* 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);
- /* 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;
- }
- }
+ const uschar * list = arg;
+ uschar *ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size);
+ uschar *opt;
+ BOOL defer_ok = FALSE;
+ int timeout = 0;
+
+ while ((opt = string_nextinlist(&list, &sep, NULL, 0)))
+ if (strcmpic(opt, US"defer_ok") == 0)
+ defer_ok = TRUE;
+ else if ( strncmpic(opt, US"tmo=", 4) == 0
+ && (timeout = readconf_readtime(opt+4, '\0', FALSE)) < 0
+ )
+ {
+ *log_msgptr = string_sprintf("bad timeout value in '%s'", opt);
+ return ERROR;
+ }
+
+ rc = malware(ss, timeout);
+ if (rc == DEFER && defer_ok)
+ rc = FAIL; /* FAIL so that the message is passed to the next ACL */
}
break;
break;
#endif
+ case ACLC_QUEUE:
+ queue_name = string_copy_malloc(arg);
+ break;
+
case ACLC_RATELIMIT:
rc = acl_ratelimit(arg, where, log_msgptr);
break;
case ACLC_RECIPIENTS:
- rc = match_address_list(addr->address, TRUE, TRUE, &arg, NULL, -1, 0,
- &recipient_data);
+ rc = match_address_list((const uschar *)addr->address, TRUE, TRUE, &arg, NULL, -1, 0,
+ CUSS &recipient_data);
break;
#ifdef WITH_CONTENT_SCAN
break;
case ACLC_SENDERS:
- rc = match_address_list(sender_address, TRUE, TRUE, &arg,
- sender_address_cache, -1, 0, &sender_data);
+ rc = match_address_list((const uschar *)sender_address, TRUE, TRUE, &arg,
+ sender_address_cache, -1, 0, CUSS &sender_data);
break;
/* Connection variables must persist forever */
case ACLC_SET:
{
int old_pool = store_pool;
- if (cb->u.varname[0] == 'c') store_pool = POOL_PERM;
+ if ( cb->u.varname[0] == 'c'
+#ifndef DISABLE_EVENT
+ || event_name /* An event is being delivered */
+#endif
+ )
+ store_pool = POOL_PERM;
acl_var_create(cb->u.varname)->data.ptr = string_copy(arg);
store_pool = old_pool;
}
#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);
+ /* Separate the regular expression and any optional parameters. */
+ const uschar * list = arg;
+ uschar *ss = string_nextinlist(&list, &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))
+ rc = spam(CUSS &ss);
+ /* Modify return code based upon the existence of options. */
+ while ((ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size))
!= NULL) {
if (strcmpic(ss, US"defer_ok") == 0 && rc == DEFER)
{
break;
#endif
+ case ACLC_UDPSEND:
+ rc = acl_udpsend(arg, log_msgptr);
+ break;
+
/* 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. However, put the user message into
case ACLC_VERIFY:
rc = acl_verify(where, addr, arg, user_msgptr, log_msgptr, basic_errno);
- acl_verify_message = *user_msgptr;
+ if (*user_msgptr)
+ acl_verify_message = *user_msgptr;
if (verb == ACL_WARN) *user_msgptr = NULL;
break;
/* If a condition was negated, invert OK/FAIL. */
- if (!cond_modifiers[cb->type] && cb->u.negated)
- {
+ if (!conditions[cb->type].is_modifier && cb->u.negated)
if (rc == OK) rc = FAIL;
- else if (rc == FAIL || rc == FAIL_DROP) rc = OK;
- }
+ else if (rc == FAIL || rc == FAIL_DROP) rc = OK;
if (rc != OK) break; /* Conditions loop */
}
int cond;
int basic_errno = 0;
BOOL endpass_seen = FALSE;
+ BOOL acl_quit_check = level == 0
+ && (where == ACL_WHERE_QUIT || where == ACL_WHERE_NOTQUIT);
*log_msgptr = *user_msgptr = NULL;
acl_temp_details = FALSE;
- 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 or not-QUIT ACL",
- verbs[acl->verb]);
- return ERROR;
- }
-
HDEBUG(D_acl) debug_printf("processing \"%s\"\n", verbs[acl->verb]);
/* Clear out any search error message from a previous check before testing
switch(acl->verb)
{
case ACL_ACCEPT:
- if (cond == OK || cond == DISCARD) return cond;
+ if (cond == OK || cond == DISCARD)
+ {
+ HDEBUG(D_acl) debug_printf("end of %s: ACCEPT\n", acl_name);
+ return cond;
+ }
if (endpass_seen)
{
HDEBUG(D_acl) debug_printf("accept: endpass encountered - denying access\n");
case ACL_DEFER:
if (cond == OK)
{
+ HDEBUG(D_acl) debug_printf("end of %s: DEFER\n", acl_name);
+ if (acl_quit_check) goto badquit;
acl_temp_details = TRUE;
return DEFER;
}
break;
case ACL_DENY:
- if (cond == OK) return FAIL;
+ if (cond == OK)
+ {
+ HDEBUG(D_acl) debug_printf("end of %s: DENY\n", acl_name);
+ if (acl_quit_check) goto badquit;
+ return FAIL;
+ }
break;
case ACL_DISCARD:
- if (cond == OK || cond == DISCARD) return DISCARD;
+ if (cond == OK || cond == DISCARD)
+ {
+ HDEBUG(D_acl) debug_printf("end of %s: DISCARD\n", acl_name);
+ if (acl_quit_check) goto badquit;
+ return DISCARD;
+ }
if (endpass_seen)
{
HDEBUG(D_acl) debug_printf("discard: endpass encountered - denying access\n");
break;
case ACL_DROP:
- if (cond == OK) return FAIL_DROP;
+ if (cond == OK)
+ {
+ HDEBUG(D_acl) debug_printf("end of %s: DROP\n", acl_name);
+ if (acl_quit_check) goto badquit;
+ return FAIL_DROP;
+ }
break;
case ACL_REQUIRE:
- if (cond != OK) return cond;
+ if (cond != OK)
+ {
+ HDEBUG(D_acl) debug_printf("end of %s: not OK\n", acl_name);
+ if (acl_quit_check) goto badquit;
+ return cond;
+ }
break;
case ACL_WARN:
if (cond == OK)
acl_warn(where, *user_msgptr, *log_msgptr);
- else if (cond == DEFER && (log_extra_selector & LX_acl_warn_skipped) != 0)
+ else if (cond == DEFER && LOGGING(acl_warn_skipped))
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": ",
HDEBUG(D_acl) debug_printf("end of %s: implicit DENY\n", acl_name);
return FAIL;
+
+badquit:
+ *log_msgptr = string_sprintf("QUIT or not-QUIT toplevel ACL may not fail "
+ "('%s' verb used incorrectly)", verbs[acl->verb]);
+ return ERROR;
}
the name of an ACL followed optionally by up to 9 space-separated arguments.
The name and args are separately expanded. Args go into $acl_arg globals. */
static int
-acl_check_wargs(int where, address_item *addr, uschar *s, int level,
+acl_check_wargs(int where, address_item *addr, const uschar *s, int level,
uschar **user_msgptr, uschar **log_msgptr)
{
uschar * tmp;
* Check access using an ACL *
*************************************************/
+/* Alternate interface for ACL, used by expansions */
+int
+acl_eval(int where, uschar *s, uschar **user_msgptr, uschar **log_msgptr)
+{
+address_item adb;
+address_item *addr = NULL;
+
+*user_msgptr = *log_msgptr = NULL;
+sender_verified_failed = NULL;
+ratelimiters_cmd = NULL;
+log_reject_target = LOG_MAIN|LOG_REJECT;
+
+if (where == ACL_WHERE_RCPT)
+ {
+ adb = address_defaults;
+ addr = &adb;
+ addr->address = expand_string(US"$local_part@$domain");
+ addr->domain = deliver_domain;
+ addr->local_part = deliver_localpart;
+ addr->cc_local_part = deliver_localpart;
+ addr->lc_local_part = deliver_localpart;
+ }
+
+return acl_check_internal(where, addr, s, 0, user_msgptr, log_msgptr);
+}
+
+
+
/* This is the external interface for ACL checks. It sets up an address and the
expansions for $domain and $local_part when called after RCPT, then calls
acl_check_internal() to do the actual work.
DEFER can't tell at the moment
ERROR disaster
*/
+int acl_where = ACL_WHERE_UNKNOWN;
int
acl_check(int where, uschar *recipient, uschar *s, uschar **user_msgptr,
ratelimiters_cmd = NULL;
log_reject_target = LOG_MAIN|LOG_REJECT;
-if (where == ACL_WHERE_RCPT)
+#ifndef DISABLE_PRDR
+if (where==ACL_WHERE_RCPT || where==ACL_WHERE_VRFY || where==ACL_WHERE_PRDR)
+#else
+if (where==ACL_WHERE_RCPT || where==ACL_WHERE_VRFY)
+#endif
{
adb = address_defaults;
addr = &adb;
*log_msgptr = US"defer in percent_hack_domains check";
return DEFER;
}
+#ifdef SUPPORT_I18N
+ if ((addr->prop.utf8_msg = message_smtputf8))
+ {
+ addr->prop.utf8_downcvt = message_utf8_downconvert == 1;
+ addr->prop.utf8_downcvt_maybe = message_utf8_downconvert == -1;
+ }
+#endif
deliver_domain = addr->domain;
deliver_localpart = addr->local_part;
}
+acl_where = where;
rc = acl_check_internal(where, addr, s, 0, user_msgptr, log_msgptr);
+acl_where = ACL_WHERE_UNKNOWN;
/* Cutthrough - if requested,
and WHERE_RCPT and not yet opened conn as result of recipient-verify,
and rcpt acl returned accept,
and first recipient (cancel on any subsequents)
open one now and run it up to RCPT acceptance.
-A failed verify should cancel cutthrough request.
-
+A failed verify should cancel cutthrough request,
+and will pass the fail to the originator.
Initial implementation: dual-write to spool.
Assume the rxd datastream is now being copied byte-for-byte to an open cutthrough connection.
If conn-failure, no action (and keep the spooled copy).
*/
switch (where)
-{
-case ACL_WHERE_RCPT:
- if( rcpt_count > 1 )
- cancel_cutthrough_connection("more than one recipient");
- else if (rc == OK && cutthrough_delivery && cutthrough_fd < 0)
- open_cutthrough_connection(addr);
- break;
+ {
+ case ACL_WHERE_RCPT:
+#ifndef DISABLE_PRDR
+ case ACL_WHERE_PRDR:
+#endif
+ if (host_checking_callout) /* -bhc mode */
+ cancel_cutthrough_connection("host-checking mode");
+
+ else if ( rc == OK
+ && cutthrough.delivery
+ && rcpt_count > cutthrough.nrcpt
+ && (rc = open_cutthrough_connection(addr)) == DEFER
+ )
+ if (cutthrough.defer_pass)
+ {
+ uschar * s = addr->message;
+ /* Horrid kludge to recover target's SMTP message */
+ while (*s) s++;
+ do --s; while (!isdigit(*s));
+ if (*--s && isdigit(*s) && *--s && isdigit(*s)) *user_msgptr = s;
+ acl_temp_details = TRUE;
+ }
+ else
+ {
+ HDEBUG(D_acl) debug_printf("cutthrough defer; will spool\n");
+ rc = OK;
+ }
+ break;
-case ACL_WHERE_PREDATA:
- if( rc == OK )
- cutthrough_predata();
- else
- cancel_cutthrough_connection("predata acl not ok");
- break;
+ case ACL_WHERE_PREDATA:
+ if (rc == OK)
+ cutthrough_predata();
+ else
+ cancel_cutthrough_connection("predata acl not ok");
+ break;
-case ACL_WHERE_QUIT:
-case ACL_WHERE_NOTQUIT:
- cancel_cutthrough_connection("quit or notquit");
- break;
+ case ACL_WHERE_QUIT:
+ case ACL_WHERE_NOTQUIT:
+ cancel_cutthrough_connection("quit or notquit");
+ break;
-default:
- break;
-}
+ default:
+ break;
+ }
deliver_domain = deliver_localpart = deliver_address_data =
sender_address_data = NULL;
}
-
/*************************************************
* Create ACL variable *
*************************************************/
fprintf(f, "-acl%c %s %d\n%s\n", name[0], name+1, Ustrlen(value), value);
}
+/* vi: aw ai sw=2
+*/
/* End of acl.c */
git://git.exim.org / exim.git / blobdiff