* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2016 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */
+/* Copyright (c) The Exim Maintainers 2020 */
/* 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",
- US"warn" };
+ [ACL_ACCEPT] = US"accept",
+ [ACL_DEFER] = US"defer",
+ [ACL_DENY] = US"deny",
+ [ACL_DISCARD] = US"discard",
+ [ACL_DROP] = US"drop",
+ [ACL_REQUIRE] = US"require",
+ [ACL_WARN] = US"warn"
+};
/* For each verb, the conditions for which "message" or "log_message" are used
are held as a bitmap. This is to avoid expanding the strings unnecessarily. For
the code. */
static int msgcond[] = {
- (1<<OK) | (1<<FAIL) | (1<<FAIL_DROP), /* accept */
- (1<<OK), /* defer */
- (1<<OK), /* deny */
- (1<<OK) | (1<<FAIL) | (1<<FAIL_DROP), /* discard */
- (1<<OK), /* drop */
- (1<<FAIL) | (1<<FAIL_DROP), /* require */
- (1<<OK) /* warn */
+ [ACL_ACCEPT] = BIT(OK) | BIT(FAIL) | BIT(FAIL_DROP),
+ [ACL_DEFER] = BIT(OK),
+ [ACL_DENY] = BIT(OK),
+ [ACL_DISCARD] = BIT(OK) | BIT(FAIL) | BIT(FAIL_DROP),
+ [ACL_DROP] = BIT(OK),
+ [ACL_REQUIRE] = BIT(FAIL) | BIT(FAIL_DROP),
+ [ACL_WARN] = BIT(OK)
};
/* ACL condition and modifier codes - keep in step with the table that
ACLC_DKIM_SIGNER,
ACLC_DKIM_STATUS,
#endif
-#ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
ACLC_DMARC_STATUS,
#endif
ACLC_DNSLISTS,
#ifdef WITH_CONTENT_SCAN
ACLC_SPAM,
#endif
-#ifdef EXPERIMENTAL_SPF
+#ifdef SUPPORT_SPF
ACLC_SPF,
ACLC_SPF_GUESS,
#endif
/* ACL conditions/modifiers: "delay", "control", "continue", "endpass",
"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. */
+their side effects. Do not invent new modifier names that result in one name
+being the prefix of another; the binary-search in the list will go wrong. */
typedef struct condition_def {
uschar *name;
} condition_def;
static condition_def conditions[] = {
- { US"acl", FALSE, FALSE, 0 },
+ [ACLC_ACL] = { US"acl", FALSE, FALSE, 0 },
- { US"add_header", TRUE, TRUE,
- (unsigned int)
- ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|
- (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+ [ACLC_ADD_HEADER] = { US"add_header", TRUE, TRUE,
+ (unsigned int)
+ ~(ACL_BIT_MAIL | ACL_BIT_RCPT |
+ ACL_BIT_PREDATA | ACL_BIT_DATA |
#ifndef DISABLE_PRDR
- (1<<ACL_WHERE_PRDR)|
+ ACL_BIT_PRDR |
#endif
- (1<<ACL_WHERE_MIME)|(1<<ACL_WHERE_NOTSMTP)|
- (1<<ACL_WHERE_DKIM)|
- (1<<ACL_WHERE_NOTSMTP_START)),
+ ACL_BIT_MIME | ACL_BIT_NOTSMTP |
+ ACL_BIT_DKIM |
+ ACL_BIT_NOTSMTP_START),
},
- { US"authenticated", FALSE, FALSE,
- (1<<ACL_WHERE_NOTSMTP)|
- (1<<ACL_WHERE_NOTSMTP_START)|
- (1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO),
+ [ACLC_AUTHENTICATED] = { US"authenticated", FALSE, FALSE,
+ ACL_BIT_NOTSMTP | ACL_BIT_NOTSMTP_START |
+ ACL_BIT_CONNECT | ACL_BIT_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)|
+ [ACLC_BMI_OPTIN] = { US"bmi_optin", TRUE, TRUE,
+ ACL_BIT_AUTH |
+ ACL_BIT_CONNECT | ACL_BIT_HELO |
+ ACL_BIT_DATA | ACL_BIT_MIME |
# ifndef DISABLE_PRDR
- (1<<ACL_WHERE_PRDR)|
+ ACL_BIT_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),
+ ACL_BIT_ETRN | ACL_BIT_EXPN |
+ ACL_BIT_MAILAUTH |
+ ACL_BIT_MAIL | ACL_BIT_STARTTLS |
+ ACL_BIT_VRFY | ACL_BIT_PREDATA |
+ ACL_BIT_NOTSMTP_START,
},
#endif
- { US"condition", TRUE, FALSE, 0 },
- { US"continue", TRUE, TRUE, 0 },
+ [ACLC_CONDITION] = { US"condition", TRUE, FALSE, 0 },
+ [ACLC_CONTINUE] = { 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 },
+ [ACLC_CONTROL] = { US"control", TRUE, TRUE, 0 },
#ifdef EXPERIMENTAL_DCC
- { US"dcc", TRUE, FALSE,
- (unsigned int)
- ~((1<<ACL_WHERE_DATA)|
+ [ACLC_DCC] = { US"dcc", TRUE, FALSE,
+ (unsigned int)
+ ~(ACL_BIT_DATA |
# ifndef DISABLE_PRDR
- (1<<ACL_WHERE_PRDR)|
+ ACL_BIT_PRDR |
# endif
- (1<<ACL_WHERE_NOTSMTP)),
+ ACL_BIT_NOTSMTP),
},
#endif
#ifdef WITH_CONTENT_SCAN
- { US"decode", TRUE, FALSE, (unsigned int) ~(1<<ACL_WHERE_MIME) },
+ [ACLC_DECODE] = { US"decode", TRUE, FALSE, (unsigned int) ~ACL_BIT_MIME },
#endif
- { US"delay", TRUE, TRUE, (1<<ACL_WHERE_NOTQUIT) },
+ [ACLC_DELAY] = { US"delay", TRUE, TRUE, ACL_BIT_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) },
+ [ACLC_DKIM_SIGNER] = { US"dkim_signers", TRUE, FALSE, (unsigned int) ~ACL_BIT_DKIM },
+ [ACLC_DKIM_STATUS] = { US"dkim_status", TRUE, FALSE, (unsigned int) ~ACL_BIT_DKIM },
#endif
-#ifdef EXPERIMENTAL_DMARC
- { US"dmarc_status", TRUE, FALSE, (unsigned int) ~(1<<ACL_WHERE_DATA) },
+#ifdef SUPPORT_DMARC
+ [ACLC_DMARC_STATUS] = { US"dmarc_status", TRUE, FALSE, (unsigned int) ~ACL_BIT_DATA },
#endif
/* 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 },
+ [ACLC_DNSLISTS] = { US"dnslists", TRUE, FALSE, 0 },
- { US"domains", FALSE, FALSE,
- (unsigned int)
- ~((1<<ACL_WHERE_RCPT)
- |(1<<ACL_WHERE_VRFY)
+ [ACLC_DOMAINS] = { US"domains", FALSE, FALSE,
+ (unsigned int)
+ ~(ACL_BIT_RCPT | ACL_BIT_VRFY
#ifndef DISABLE_PRDR
- |(1<<ACL_WHERE_PRDR)
+ |ACL_BIT_PRDR
#endif
),
},
- { US"encrypted", FALSE, FALSE,
- (1<<ACL_WHERE_NOTSMTP)|
- (1<<ACL_WHERE_CONNECT)|
- (1<<ACL_WHERE_NOTSMTP_START)|
- (1<<ACL_WHERE_HELO),
+ [ACLC_ENCRYPTED] = { US"encrypted", FALSE, FALSE,
+ ACL_BIT_NOTSMTP | ACL_BIT_NOTSMTP_START |
+ ACL_BIT_HELO,
},
- { US"endpass", TRUE, TRUE, 0 },
+ [ACLC_ENDPASS] = { US"endpass", TRUE, TRUE, 0 },
- { US"hosts", FALSE, FALSE,
- (1<<ACL_WHERE_NOTSMTP)|
- (1<<ACL_WHERE_NOTSMTP_START),
+ [ACLC_HOSTS] = { US"hosts", FALSE, FALSE,
+ ACL_BIT_NOTSMTP | ACL_BIT_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
+ [ACLC_LOCAL_PARTS] = { US"local_parts", FALSE, FALSE,
+ (unsigned int)
+ ~(ACL_BIT_RCPT | ACL_BIT_VRFY
+#ifndef DISABLE_PRDR
+ | ACL_BIT_PRDR
+#endif
),
},
- { US"log_message", TRUE, TRUE, 0 },
- { US"log_reject_target", TRUE, TRUE, 0 },
- { US"logwrite", TRUE, TRUE, 0 },
+ [ACLC_LOG_MESSAGE] = { US"log_message", TRUE, TRUE, 0 },
+ [ACLC_LOG_REJECT_TARGET] = { US"log_reject_target", TRUE, TRUE, 0 },
+ [ACLC_LOGWRITE] = { US"logwrite", TRUE, TRUE, 0 },
#ifdef WITH_CONTENT_SCAN
- { US"malware", TRUE, FALSE,
- (unsigned int)
- ~((1<<ACL_WHERE_DATA)|
+ [ACLC_MALWARE] = { US"malware", TRUE, FALSE,
+ (unsigned int)
+ ~(ACL_BIT_DATA |
# ifndef DISABLE_PRDR
- (1<<ACL_WHERE_PRDR)|
+ ACL_BIT_PRDR |
# endif
- (1<<ACL_WHERE_NOTSMTP)),
+ ACL_BIT_NOTSMTP),
},
#endif
- { US"message", TRUE, TRUE, 0 },
+ [ACLC_MESSAGE] = { US"message", TRUE, TRUE, 0 },
#ifdef WITH_CONTENT_SCAN
- { US"mime_regex", TRUE, FALSE, (unsigned int) ~(1<<ACL_WHERE_MIME) },
+ [ACLC_MIME_REGEX] = { US"mime_regex", TRUE, FALSE, (unsigned int) ~ACL_BIT_MIME },
#endif
- { US"queue", TRUE, TRUE,
- (1<<ACL_WHERE_NOTSMTP)|
+ [ACLC_QUEUE] = { US"queue", TRUE, TRUE,
+ ACL_BIT_NOTSMTP |
#ifndef DISABLE_PRDR
- (1<<ACL_WHERE_PRDR)|
+ ACL_BIT_PRDR |
#endif
- (1<<ACL_WHERE_DATA),
+ ACL_BIT_DATA,
},
- { US"ratelimit", TRUE, FALSE, 0 },
- { US"recipients", FALSE, FALSE, (unsigned int) ~(1<<ACL_WHERE_RCPT) },
+ [ACLC_RATELIMIT] = { US"ratelimit", TRUE, FALSE, 0 },
+ [ACLC_RECIPIENTS] = { US"recipients", FALSE, FALSE, (unsigned int) ~ACL_BIT_RCPT },
#ifdef WITH_CONTENT_SCAN
- { US"regex", TRUE, FALSE,
- (unsigned int)
- ~((1<<ACL_WHERE_DATA)|
+ [ACLC_REGEX] = { US"regex", TRUE, FALSE,
+ (unsigned int)
+ ~(ACL_BIT_DATA |
# ifndef DISABLE_PRDR
- (1<<ACL_WHERE_PRDR)|
+ ACL_BIT_PRDR |
# endif
- (1<<ACL_WHERE_NOTSMTP)|
- (1<<ACL_WHERE_MIME)),
+ ACL_BIT_NOTSMTP |
+ ACL_BIT_MIME),
},
#endif
- { US"remove_header", TRUE, TRUE,
- (unsigned int)
- ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|
- (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+ [ACLC_REMOVE_HEADER] = { US"remove_header", TRUE, TRUE,
+ (unsigned int)
+ ~(ACL_BIT_MAIL|ACL_BIT_RCPT |
+ ACL_BIT_PREDATA | ACL_BIT_DATA |
#ifndef DISABLE_PRDR
- (1<<ACL_WHERE_PRDR)|
+ ACL_BIT_PRDR |
#endif
- (1<<ACL_WHERE_MIME)|(1<<ACL_WHERE_NOTSMTP)|
- (1<<ACL_WHERE_NOTSMTP_START)),
+ ACL_BIT_MIME | ACL_BIT_NOTSMTP |
+ ACL_BIT_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),
+ [ACLC_SENDER_DOMAINS] = { US"sender_domains", FALSE, FALSE,
+ ACL_BIT_AUTH | ACL_BIT_CONNECT |
+ ACL_BIT_HELO |
+ ACL_BIT_MAILAUTH | ACL_BIT_QUIT |
+ ACL_BIT_ETRN | ACL_BIT_EXPN |
+ ACL_BIT_STARTTLS | ACL_BIT_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),
+ [ACLC_SENDERS] = { US"senders", FALSE, FALSE,
+ ACL_BIT_AUTH | ACL_BIT_CONNECT |
+ ACL_BIT_HELO |
+ ACL_BIT_MAILAUTH | ACL_BIT_QUIT |
+ ACL_BIT_ETRN | ACL_BIT_EXPN |
+ ACL_BIT_STARTTLS | ACL_BIT_VRFY,
},
- { US"set", TRUE, TRUE, 0 },
+ [ACLC_SET] = { US"set", TRUE, TRUE, 0 },
#ifdef WITH_CONTENT_SCAN
- { US"spam", TRUE, FALSE,
- (unsigned int)
- ~((1<<ACL_WHERE_DATA)|
+ [ACLC_SPAM] = { US"spam", TRUE, FALSE,
+ (unsigned int) ~(ACL_BIT_DATA |
# ifndef DISABLE_PRDR
- (1<<ACL_WHERE_PRDR)|
+ ACL_BIT_PRDR |
# endif
- (1<<ACL_WHERE_NOTSMTP)),
+ ACL_BIT_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),
+#ifdef SUPPORT_SPF
+ [ACLC_SPF] = { US"spf", TRUE, FALSE,
+ ACL_BIT_AUTH | ACL_BIT_CONNECT |
+ ACL_BIT_HELO | ACL_BIT_MAILAUTH |
+ ACL_BIT_ETRN | ACL_BIT_EXPN |
+ ACL_BIT_STARTTLS | ACL_BIT_VRFY |
+ ACL_BIT_NOTSMTP | ACL_BIT_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),
+ [ACLC_SPF_GUESS] = { US"spf_guess", TRUE, FALSE,
+ ACL_BIT_AUTH | ACL_BIT_CONNECT |
+ ACL_BIT_HELO | ACL_BIT_MAILAUTH |
+ ACL_BIT_ETRN | ACL_BIT_EXPN |
+ ACL_BIT_STARTTLS | ACL_BIT_VRFY |
+ ACL_BIT_NOTSMTP | ACL_BIT_NOTSMTP_START,
},
#endif
- { US"udpsend", TRUE, TRUE, 0 },
+ [ACLC_UDPSEND] = { 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 */
- { US"verify", TRUE, FALSE,
- 0
- },
+ [ACLC_VERIFY] = { US"verify", TRUE, FALSE, 0 },
};
#ifndef DISABLE_DKIM
CONTROL_DKIM_VERIFY,
#endif
-#ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
CONTROL_DMARC_VERIFY,
CONTROL_DMARC_FORENSIC,
#endif
CONTROL_NO_MULTILINE,
CONTROL_NO_PIPELINING,
- CONTROL_QUEUE_ONLY,
+ CONTROL_QUEUE,
CONTROL_SUBMISSION,
CONTROL_SUPPRESS_LOCAL_FIXUPS,
#ifdef SUPPORT_I18N
} control_def;
static control_def controls_list[] = {
+ /* name has_option forbids */
+[CONTROL_AUTH_UNADVERTISED] =
{ US"allow_auth_unadvertised", FALSE,
- (unsigned)
- ~((1<<ACL_WHERE_CONNECT)|(1<<ACL_WHERE_HELO))
+ (unsigned)
+ ~(ACL_BIT_CONNECT | ACL_BIT_HELO)
},
#ifdef EXPERIMENTAL_BRIGHTMAIL
- { US"bmi_run", FALSE, 0 },
+[CONTROL_BMI_RUN] =
+ { US"bmi_run", FALSE, 0 },
#endif
- { 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 },
+[CONTROL_CASEFUL_LOCAL_PART] =
+ { US"caseful_local_part", FALSE, (unsigned) ~ACL_BIT_RCPT },
+[CONTROL_CASELOWER_LOCAL_PART] =
+ { US"caselower_local_part", FALSE, (unsigned) ~ACL_BIT_RCPT },
+[CONTROL_CUTTHROUGH_DELIVERY] =
+ { US"cutthrough_delivery", TRUE, 0 },
+[CONTROL_DEBUG] =
+ { US"debug", TRUE, 0 },
#ifndef DISABLE_DKIM
+[CONTROL_DKIM_VERIFY] =
{ US"dkim_disable_verify", FALSE,
- (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)|
+ ACL_BIT_DATA | ACL_BIT_NOTSMTP |
# ifndef DISABLE_PRDR
- (1<<ACL_WHERE_PRDR)|
+ ACL_BIT_PRDR |
# endif
- (1<<ACL_WHERE_NOTSMTP_START)
+ ACL_BIT_NOTSMTP_START
},
#endif
-#ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
+[CONTROL_DMARC_VERIFY] =
{ US"dmarc_disable_verify", FALSE,
- (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ ACL_BIT_DATA | ACL_BIT_NOTSMTP | ACL_BIT_NOTSMTP_START
},
+[CONTROL_DMARC_FORENSIC] =
{ US"dmarc_enable_forensic", FALSE,
- (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ ACL_BIT_DATA | ACL_BIT_NOTSMTP | ACL_BIT_NOTSMTP_START
},
#endif
+[CONTROL_DSCP] =
{ US"dscp", TRUE,
- (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)|(1<<ACL_WHERE_NOTQUIT)
+ ACL_BIT_NOTSMTP | ACL_BIT_NOTSMTP_START | ACL_BIT_NOTQUIT
},
+[CONTROL_ENFORCE_SYNC] =
{ US"enforce_sync", FALSE,
- (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ ACL_BIT_NOTSMTP | ACL_BIT_NOTSMTP_START
},
/* Pseudo-value for decode errors */
+[CONTROL_ERROR] =
{ US"error", FALSE, 0 },
+[CONTROL_FAKEDEFER] =
{ US"fakedefer", TRUE,
- (unsigned)
- ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|
- (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+ (unsigned)
+ ~(ACL_BIT_MAIL | ACL_BIT_RCPT |
+ ACL_BIT_PREDATA | ACL_BIT_DATA |
#ifndef DISABLE_PRDR
- (1<<ACL_WHERE_PRDR)|
+ ACL_BIT_PRDR |
#endif
- (1<<ACL_WHERE_MIME))
+ ACL_BIT_MIME)
},
+[CONTROL_FAKEREJECT] =
{ US"fakereject", TRUE,
- (unsigned)
- ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|
- (1<<ACL_WHERE_PREDATA)|(1<<ACL_WHERE_DATA)|
+ (unsigned)
+ ~(ACL_BIT_MAIL | ACL_BIT_RCPT |
+ ACL_BIT_PREDATA | ACL_BIT_DATA |
#ifndef DISABLE_PRDR
- (1<<ACL_WHERE_PRDR)|
+ ACL_BIT_PRDR |
#endif
- (1<<ACL_WHERE_MIME))
+ ACL_BIT_MIME)
},
+[CONTROL_FREEZE] =
{ 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))
+ (unsigned)
+ ~(ACL_BIT_MAIL | ACL_BIT_RCPT |
+ ACL_BIT_PREDATA | ACL_BIT_DATA |
+ // ACL_BIT_PRDR| /* Not allow one user to freeze for all */
+ ACL_BIT_NOTSMTP | ACL_BIT_MIME)
},
+[CONTROL_NO_CALLOUT_FLUSH] =
{ US"no_callout_flush", FALSE,
- (1<<ACL_WHERE_NOTSMTP)| (1<<ACL_WHERE_NOTSMTP_START)
+ ACL_BIT_NOTSMTP | ACL_BIT_NOTSMTP_START
},
+[CONTROL_NO_DELAY_FLUSH] =
{ US"no_delay_flush", FALSE,
- (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ ACL_BIT_NOTSMTP | ACL_BIT_NOTSMTP_START
},
+[CONTROL_NO_ENFORCE_SYNC] =
{ US"no_enforce_sync", FALSE,
- (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ ACL_BIT_NOTSMTP | ACL_BIT_NOTSMTP_START
},
#ifdef WITH_CONTENT_SCAN
+[CONTROL_NO_MBOX_UNSPOOL] =
{ 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))
+ (unsigned)
+ ~(ACL_BIT_MAIL | ACL_BIT_RCPT |
+ ACL_BIT_PREDATA | ACL_BIT_DATA |
+ // ACL_BIT_PRDR| /* Not allow one user to freeze for all */
+ ACL_BIT_MIME)
},
#endif
+[CONTROL_NO_MULTILINE] =
{ US"no_multiline_responses", FALSE,
- (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ ACL_BIT_NOTSMTP | ACL_BIT_NOTSMTP_START
},
+[CONTROL_NO_PIPELINING] =
{ US"no_pipelining", FALSE,
- (1<<ACL_WHERE_NOTSMTP)|(1<<ACL_WHERE_NOTSMTP_START)
+ ACL_BIT_NOTSMTP | ACL_BIT_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))
+[CONTROL_QUEUE] =
+ { US"queue", TRUE,
+ (unsigned)
+ ~(ACL_BIT_MAIL | ACL_BIT_RCPT |
+ ACL_BIT_PREDATA | ACL_BIT_DATA |
+ // ACL_BIT_PRDR| /* Not allow one user to freeze for all */
+ ACL_BIT_NOTSMTP | ACL_BIT_MIME)
},
+
+[CONTROL_SUBMISSION] =
{ US"submission", TRUE,
- (unsigned)
- ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|(1<<ACL_WHERE_PREDATA))
+ (unsigned)
+ ~(ACL_BIT_MAIL | ACL_BIT_RCPT | ACL_BIT_PREDATA)
},
+[CONTROL_SUPPRESS_LOCAL_FIXUPS] =
{ US"suppress_local_fixups", FALSE,
(unsigned)
- ~((1<<ACL_WHERE_MAIL)|(1<<ACL_WHERE_RCPT)|(1<<ACL_WHERE_PREDATA)|
- (1<<ACL_WHERE_NOTSMTP_START))
+ ~(ACL_BIT_MAIL | ACL_BIT_RCPT | ACL_BIT_PREDATA |
+ ACL_BIT_NOTSMTP_START)
},
#ifdef SUPPORT_I18N
- { US"utf8_downconvert", TRUE, 0 }
+[CONTROL_UTF8_DOWNCONVERT] =
+ { US"utf8_downconvert", TRUE, (unsigned) ~(ACL_BIT_RCPT | ACL_BIT_VRFY)
+ }
#endif
};
the aim is to make the usual configuration simple. */
static int csa_return_code[] = {
- OK, OK, OK, OK,
- FAIL, FAIL, FAIL, FAIL
+ [CSA_UNKNOWN] = OK,
+ [CSA_OK] = OK,
+ [CSA_DEFER_SRV] = OK,
+ [CSA_DEFER_ADDR] = OK,
+ [CSA_FAIL_EXPLICIT] = FAIL,
+ [CSA_FAIL_DOMAIN] = FAIL,
+ [CSA_FAIL_NOADDR] = FAIL,
+ [CSA_FAIL_MISMATCH] = FAIL
};
static uschar *csa_status_string[] = {
- US"unknown", US"ok", US"defer", US"defer",
- US"fail", US"fail", US"fail", US"fail"
+ [CSA_UNKNOWN] = US"unknown",
+ [CSA_OK] = US"ok",
+ [CSA_DEFER_SRV] = US"defer",
+ [CSA_DEFER_ADDR] = US"defer",
+ [CSA_FAIL_EXPLICIT] = US"fail",
+ [CSA_FAIL_DOMAIN] = US"fail",
+ [CSA_FAIL_NOADDR] = US"fail",
+ [CSA_FAIL_MISMATCH] = US"fail"
};
static uschar *csa_reason_string[] = {
- US"unknown",
- US"ok",
- US"deferred (SRV lookup failed)",
- US"deferred (target address lookup failed)",
- US"failed (explicit authorization required)",
- US"failed (host name not authorized)",
- US"failed (no authorized addresses)",
- US"failed (client address mismatch)"
+ [CSA_UNKNOWN] = US"unknown",
+ [CSA_OK] = US"ok",
+ [CSA_DEFER_SRV] = US"deferred (SRV lookup failed)",
+ [CSA_DEFER_ADDR] = US"deferred (target address lookup failed)",
+ [CSA_FAIL_EXPLICIT] = US"failed (explicit authorization required)",
+ [CSA_FAIL_DOMAIN] = US"failed (host name not authorized)",
+ [CSA_FAIL_NOADDR] = US"failed (no authorized addresses)",
+ [CSA_FAIL_MISMATCH] = US"failed (client address mismatch)"
};
/* Options for the ratelimit condition. Note that there are two variants of
(((var) == RATE_PER_WHAT) ? ((var) = RATE_##new) : ((var) = RATE_PER_CLASH))
static uschar *ratelimit_option_string[] = {
- US"?", US"!", US"per_addr", US"per_byte", US"per_cmd",
- US"per_conn", US"per_mail", US"per_rcpt", US"per_rcpt"
+ [RATE_PER_WHAT] = US"?",
+ [RATE_PER_CLASH] = US"!",
+ [RATE_PER_ADDR] = US"per_addr",
+ [RATE_PER_BYTE] = US"per_byte",
+ [RATE_PER_CMD] = US"per_cmd",
+ [RATE_PER_CONN] = US"per_conn",
+ [RATE_PER_MAIL] = US"per_mail",
+ [RATE_PER_RCPT] = US"per_rcpt",
+ [RATE_PER_ALLRCPTS] = US"per_rcpt"
};
/* Enable recursion between acl_check_internal() and acl_check_condition() */
static int
find_control(const uschar * name, control_def * ol, int last)
{
-int first = 0;
-while (last > first)
+for (int first = 0; last > first; )
{
int middle = (first + last)/2;
uschar * s = ol[middle].name;
static int
acl_checkcondition(uschar * name, condition_def * list, int end)
{
-int start = 0;
-while (start < end)
+for (int start = 0; start < end; )
{
int mid = (start + end)/2;
int c = Ustrcmp(name, list[mid].name);
static int
acl_checkname(uschar *name, uschar **list, int end)
{
-int start = 0;
-
-while (start < end)
+for (int start = 0; start < end; )
{
int mid = (start + end)/2;
int c = Ustrcmp(name, list[mid]);
acl_block *this = NULL;
acl_condition_block *cond;
acl_condition_block **condp = NULL;
-uschar *s;
+uschar * s;
*error = NULL;
-while ((s = (*func)()) != NULL)
+while ((s = (*func)()))
{
int v, c;
BOOL negated = FALSE;
/* Conditions (but not verbs) are allowed to be negated by an initial
exclamation mark. */
- while (isspace(*s)) s++;
- if (*s == '!')
+ if (Uskip_whitespace(&s) == '!')
{
negated = TRUE;
s++;
if ((v = acl_checkname(name, verbs, nelem(verbs))) < 0)
{
- if (this == NULL)
+ if (!this)
{
*error = string_sprintf("unknown ACL verb \"%s\" in \"%s\"", name,
saveline);
*error = string_sprintf("malformed ACL line \"%s\"", saveline);
return NULL;
}
- this = store_get(sizeof(acl_block));
+ this = store_get(sizeof(acl_block), FALSE);
*lastp = this;
lastp = &(this->next);
this->next = NULL;
- this->verb = v;
this->condition = NULL;
+ this->verb = v;
+ this->srcline = config_lineno; /* for debug output */
+ this->srcfile = config_filename; /**/
condp = &(this->condition);
if (*s == 0) continue; /* No condition on this line */
if (*s == '!')
return NULL;
}
- cond = store_get(sizeof(acl_condition_block));
+ cond = store_get(sizeof(acl_condition_block), FALSE);
cond->next = NULL;
cond->type = c;
cond->u.negated = negated;
compatibility. */
if (c == ACLC_SET)
+#ifndef DISABLE_DKIM
+ if ( Ustrncmp(s, "dkim_verify_status", 18) == 0
+ || Ustrncmp(s, "dkim_verify_reason", 18) == 0)
+ {
+ uschar * endptr = s+18;
+
+ if (isalnum(*endptr))
+ {
+ *error = string_sprintf("invalid variable name after \"set\" in ACL "
+ "modifier \"set %s\" "
+ "(only \"dkim_verify_status\" or \"dkim_verify_reason\" permitted)",
+ s);
+ return NULL;
+ }
+ cond->u.varname = string_copyn(s, 18);
+ s = endptr;
+ Uskip_whitespace(&s);
+ }
+ else
+#endif
{
uschar *endptr;
- if (Ustrncmp(s, "acl_c", 5) != 0 &&
- Ustrncmp(s, "acl_m", 5) != 0)
+ if (Ustrncmp(s, "acl_c", 5) != 0 && Ustrncmp(s, "acl_m", 5) != 0)
{
*error = string_sprintf("invalid variable name after \"set\" in ACL "
- "modifier \"set %s\" (must start \"acl_c\" or \"acl_m\")", s);
+ "modifier \"set %s\" (must start \"acl_c\" or \"acl_m\")", s);
return NULL;
}
if (!isdigit(*endptr) && *endptr != '_')
{
*error = string_sprintf("invalid variable name after \"set\" in ACL "
- "modifier \"set %s\" (digit or underscore must follow acl_c or acl_m)",
- s);
+ "modifier \"set %s\" (digit or underscore must follow acl_c or acl_m)",
+ s);
return NULL;
}
- while (*endptr != 0 && *endptr != '=' && !isspace(*endptr))
+ while (*endptr && *endptr != '=' && !isspace(*endptr))
{
if (!isalnum(*endptr) && *endptr != '_')
- {
- *error = string_sprintf("invalid character \"%c\" in variable name "
- "in ACL modifier \"set %s\"", *endptr, s);
- return NULL;
- }
+ {
+ *error = string_sprintf("invalid character \"%c\" in variable name "
+ "in ACL modifier \"set %s\"", *endptr, s);
+ return NULL;
+ }
endptr++;
}
cond->u.varname = string_copyn(s + 4, endptr - s - 4);
s = endptr;
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
}
/* For "set", we are now positioned for the data. For the others, only
conditions[c].is_modifier ? US"modifier" : US"condition");
return NULL;
}
- while (isspace(*s)) s++;
+ Uskip_whitespace(&s);
cond->arg = string_copy(s);
}
}
/* Loop for multiple header lines, taking care about continuations */
-for (p = q; *p != 0; )
+for (p = q; *p; p = q)
{
const uschar *s;
uschar * hdr;
for (;;)
{
q = Ustrchr(q, '\n'); /* we know there was a newline */
- if (*(++q) != ' ' && *q != '\t') break;
+ if (*++q != ' ' && *q != '\t') break;
}
/* If the line starts with a colon, interpret the instruction for where to
to the front of it. */
for (s = p; s < q - 1; s++)
- {
if (*s == ':' || !isgraph(*s)) break;
- }
- hdr = string_sprintf("%s%.*s", (*s == ':')? "" : "X-ACL-Warn: ", (int) (q - p), p);
+ 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)
+ while (*hptr)
{
if (Ustrncmp((*hptr)->text, hdr, hlen) == 0) break;
- hptr = &((*hptr)->next);
+ hptr = &(*hptr)->next;
}
/* Add if not previously present */
- if (*hptr == NULL)
+ if (!*hptr)
{
- header_line *h = store_get(sizeof(header_line));
+ /* The header_line struct itself is not tainted, though it points to
+ possibly tainted data. */
+ header_line * h = store_get(sizeof(header_line), FALSE);
h->text = hdr;
h->next = NULL;
h->type = newtype;
h->slen = hlen;
*hptr = h;
- hptr = &(h->next);
+ hptr = &h->next;
}
-
- /* Advance for next header line within the string */
-
- p = q;
}
}
uschar *
fn_hdrs_added(void)
{
-uschar * ret = NULL;
-int size = 0;
-int ptr = 0;
-header_line * h = acl_added_headers;
-uschar * s;
-uschar * cp;
+gstring * g = NULL;
-if (!h) return NULL;
-
-do
+for (header_line * h = acl_added_headers; h; h = h->next)
{
- s = h->text;
- while ((cp = Ustrchr(s, '\n')) != NULL)
- {
- if (cp[1] == '\0') break;
-
- /* contains embedded newline; needs doubling */
- 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_catn(ret, &size, &ptr, s, cp-s+1); /* newline-sep list */
+ int i = h->slen;
+ if (h->text[i-1] == '\n') i--;
+ g = string_append_listele_n(g, '\n', h->text, i);
}
-while((h = h->next));
-ret[ptr-1] = '\0'; /* overwrite last newline */
-return ret;
+return g ? g->s : NULL;
}
static void
setup_remove_header(const uschar *hnames)
{
-if (*hnames != 0)
+if (*hnames)
acl_removed_headers = acl_removed_headers
? string_sprintf("%s : %s", acl_removed_headers, hnames)
: string_copy(hnames);
/* Search previously logged warnings. They are kept in malloc
store so they can be freed at the start of a new message. */
- for (logged = acl_warn_logged; logged != NULL; logged = logged->next)
+ for (logged = acl_warn_logged; logged; logged = logged->next)
if (Ustrcmp(logged->text, text) == 0) break;
- if (logged == NULL)
+ if (!logged)
{
int length = Ustrlen(text) + 1;
log_write(0, LOG_MAIN, "%s", text);
logged = store_malloc(sizeof(string_item) + length);
- logged->text = (uschar *)logged + sizeof(string_item);
+ logged->text = US logged + sizeof(string_item);
memcpy(logged->text, text, length);
logged->next = acl_warn_logged;
acl_warn_logged = logged;
/* If there's no user message, we are done. */
-if (user_message == NULL) return;
+if (!user_message) return;
/* If this isn't a message ACL, we can't do anything with a user message.
Log an error. */
if ((rc = host_name_lookup()) != OK)
{
- *log_msgptr = (rc == DEFER)?
- US"host lookup deferred for reverse lookup check"
- :
- string_sprintf("host lookup failed for reverse lookup check%s",
- host_lookup_msg);
+ *log_msgptr = rc == DEFER
+ ? US"host lookup deferred for reverse lookup check"
+ : string_sprintf("host lookup failed for reverse lookup check%s",
+ host_lookup_msg);
return rc; /* DEFER or FAIL */
}
acl_verify_csa_address(dns_answer *dnsa, dns_scan *dnss, int reset,
uschar *target)
{
-dns_record *rr;
-dns_address *da;
+int rc = CSA_FAIL_NOADDR;
-BOOL target_found = FALSE;
-
-for (rr = dns_next_rr(dnsa, dnss, reset);
- rr != NULL;
+for (dns_record * rr = dns_next_rr(dnsa, dnss, reset);
+ rr;
rr = dns_next_rr(dnsa, dnss, RESET_NEXT))
{
/* Check this is an address RR for the target hostname. */
if (strcmpic(target, rr->name) != 0) continue;
- target_found = TRUE;
+ rc = CSA_FAIL_MISMATCH;
/* Turn the target address RR into a list of textual IP addresses and scan
the list. There may be more than one if it is an A6 RR. */
- for (da = dns_address_from_rr(dnsa, rr); da != NULL; da = da->next)
+ for (dns_address * da = dns_address_from_rr(dnsa, rr); da; da = da->next)
{
/* If the client IP address matches the target IP address, it's good! */
using an unauthorized IP address, otherwise the target has no authorized IP
addresses. */
-if (target_found) return CSA_FAIL_MISMATCH;
-else return CSA_FAIL_NOADDR;
+return rc;
}
tree_node *t;
const uschar *found;
int priority, weight, port;
-dns_answer dnsa;
+dns_answer * dnsa = store_get_dns_answer();
dns_scan dnss;
dns_record *rr;
int rc, type;
if (string_is_ip_address(domain, NULL) != 0)
{
if (!dns_csa_use_reverse) return CSA_UNKNOWN;
- dns_build_reverse(domain, target);
- domain = target;
+ domain = dns_build_reverse(domain);
}
/* Find out if we've already done the CSA check for this domain. If we have,
t = tree_search(csa_cache, domain);
if (t != NULL) return t->data.val;
-t = store_get_perm(sizeof(tree_node) + Ustrlen(domain));
+t = store_get_perm(sizeof(tree_node) + Ustrlen(domain), is_tainted(domain));
Ustrcpy(t->name, domain);
(void)tree_insertnode(&csa_cache, t);
/* Now we are ready to do the actual DNS lookup(s). */
found = domain;
-switch (dns_special_lookup(&dnsa, domain, T_CSA, &found))
+switch (dns_special_lookup(dnsa, domain, T_CSA, &found))
{
/* If something bad happened (most commonly DNS_AGAIN), defer. */
/* Scan the reply for well-formed CSA SRV records. */
-for (rr = dns_next_rr(&dnsa, &dnss, RESET_ANSWERS);
+for (rr = dns_next_rr(dnsa, &dnss, RESET_ANSWERS);
rr;
- rr = dns_next_rr(&dnsa, &dnss, RESET_NEXT)) if (rr->type == T_SRV)
+ rr = dns_next_rr(dnsa, &dnss, RESET_NEXT)) if (rr->type == T_SRV)
{
const uschar * p = rr->data;
client's IP address is listed as one of the SRV target addresses. Save the
target hostname then break to scan the additional data for its addresses. */
- (void)dn_expand(dnsa.answer, dnsa.answer + dnsa.answerlen, p,
+ (void)dn_expand(dnsa->answer, dnsa->answer + dnsa->answerlen, p,
(DN_EXPAND_ARG4_TYPE)target, sizeof(target));
DEBUG(D_acl) debug_printf_indent("CSA target is %s\n", target);
/* If we didn't break the loop then no appropriate records were found. */
-if (rr == NULL) return t->data.val = CSA_UNKNOWN;
+if (!rr) return t->data.val = CSA_UNKNOWN;
/* Do not check addresses if the target is ".", in accordance with RFC 2782.
A target of "." indicates there are no valid addresses, so the client cannot
because it does not fully support SRV records), we need to do another lookup
to obtain the target addresses; otherwise we have a definitive result. */
-rc = acl_verify_csa_address(&dnsa, &dnss, RESET_ADDITIONAL, target);
+rc = acl_verify_csa_address(dnsa, &dnss, RESET_ADDITIONAL, target);
if (rc != CSA_FAIL_NOADDR) return t->data.val = rc;
/* The DNS lookup type corresponds to the IP version used by the client. */
lookup_dnssec_authenticated = NULL;
-switch (dns_lookup(&dnsa, target, type, NULL))
+switch (dns_lookup(dnsa, target, type, NULL))
{
/* If something bad happened (most commonly DNS_AGAIN), defer. */
/* If the query succeeded, scan the addresses and return the result. */
case DNS_SUCCEED:
- rc = acl_verify_csa_address(&dnsa, &dnss, RESET_ANSWERS, target);
+ rc = acl_verify_csa_address(dnsa, &dnss, RESET_ANSWERS, target);
if (rc != CSA_FAIL_NOADDR) return t->data.val = rc;
/* else fall through */
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_HDR_NAMES_ASCII
+ VERIFY_HDR_NAMES_ASCII, VERIFY_ARC
};
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, FALSE, 0 },
- { US"certificate", VERIFY_CERT, ~0, TRUE, 0 },
- { US"helo", VERIFY_HELO, ~0, TRUE, 0 },
- { US"csa", VERIFY_CSA, ~0, FALSE, 0 },
- { US"header_syntax", VERIFY_HDR_SYNTAX, (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP), TRUE, 0 },
- { US"not_blind", VERIFY_NOT_BLIND, (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP), TRUE, 0 },
- { US"header_sender", VERIFY_HDR_SNDR, (1<<ACL_WHERE_DATA)|(1<<ACL_WHERE_NOTSMTP), 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),
+ /* name value where no-opt opt-sep */
+ { US"reverse_host_lookup", VERIFY_REV_HOST_LKUP, (unsigned)~0, FALSE, 0 },
+ { US"certificate", VERIFY_CERT, (unsigned)~0, TRUE, 0 },
+ { US"helo", VERIFY_HELO, (unsigned)~0, TRUE, 0 },
+ { US"csa", VERIFY_CSA, (unsigned)~0, FALSE, 0 },
+ { US"header_syntax", VERIFY_HDR_SYNTAX, ACL_BIT_DATA | ACL_BIT_NOTSMTP, TRUE, 0 },
+ { US"not_blind", VERIFY_NOT_BLIND, ACL_BIT_DATA | ACL_BIT_NOTSMTP, FALSE, 0 },
+ { US"header_sender", VERIFY_HDR_SNDR, ACL_BIT_DATA | ACL_BIT_NOTSMTP, FALSE, 0 },
+ { US"sender", VERIFY_SNDR, ACL_BIT_MAIL | ACL_BIT_RCPT
+ |ACL_BIT_PREDATA | ACL_BIT_DATA | ACL_BIT_NOTSMTP,
FALSE, 6 },
- { 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 }
+ { US"recipient", VERIFY_RCPT, ACL_BIT_RCPT, FALSE, 0 },
+ { US"header_names_ascii", VERIFY_HDR_NAMES_ASCII, ACL_BIT_DATA | ACL_BIT_NOTSMTP, TRUE, 0 },
+#ifdef EXPERIMENTAL_ARC
+ { US"arc", VERIFY_ARC, ACL_BIT_DATA, FALSE , 0 },
+#endif
};
BOOL timeval; /* Has a time value */
} callout_opt_t;
static callout_opt_t callout_opt_list[] = {
+ /* name value flag has-opt has-time */
{ US"defer_ok", CALLOUT_DEFER_OK, 0, FALSE, FALSE },
{ US"no_cache", CALLOUT_NOCACHE, vopt_callout_no_cache, FALSE, FALSE },
{ US"random", CALLOUT_RANDOM, vopt_callout_random, FALSE, FALSE },
uschar *slash = Ustrchr(arg, '/');
const uschar *list = arg;
-uschar *ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size);
+uschar *ss = string_nextinlist(&list, &sep, NULL, 0);
verify_type_t * vp;
-if (ss == NULL) goto BAD_VERIFY;
+if (!ss) goto BAD_VERIFY;
/* Handle name/address consistency verification in a separate function. */
-for (vp= verify_type_list;
- (char *)vp < (char *)verify_type_list + sizeof(verify_type_list);
+for (vp = verify_type_list;
+ CS vp < CS verify_type_list + sizeof(verify_type_list);
vp++
)
if (vp->alt_opt_sep ? strncmpic(ss, vp->name, vp->alt_opt_sep) == 0
: strcmpic (ss, vp->name) == 0)
break;
-if ((char *)vp >= (char *)verify_type_list + sizeof(verify_type_list))
+if (CS vp >= CS verify_type_list + sizeof(verify_type_list))
goto BAD_VERIFY;
-if (vp->no_options && slash != NULL)
+if (vp->no_options && slash)
{
*log_msgptr = string_sprintf("unexpected '/' found in \"%s\" "
"(this verify item has no options)", arg);
return ERROR;
}
-if (!(vp->where_allowed & (1<<where)))
+if (!(vp->where_allowed & BIT(where)))
{
- *log_msgptr = string_sprintf("cannot verify %s in ACL for %s", vp->name, acl_wherenames[where]);
+ *log_msgptr = string_sprintf("cannot verify %s in ACL for %s",
+ vp->name, acl_wherenames[where]);
return ERROR;
}
switch(vp->value)
{
case VERIFY_REV_HOST_LKUP:
- if (sender_host_address == NULL) return OK;
+ if (!sender_host_address) return OK;
if ((rc = acl_verify_reverse(user_msgptr, log_msgptr)) == DEFER)
- while ((ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)))
+ while ((ss = string_nextinlist(&list, &sep, NULL, 0)))
if (strcmpic(ss, US"defer_ok") == 0)
return OK;
return rc;
/* 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 (!f.helo_verified && !f.helo_verify_failed) smtp_verify_helo();
+ return f.helo_verified ? OK : FAIL;
case VERIFY_CSA:
/* Do Client SMTP Authorization checks in a separate function, and turn the
DEBUG(D_acl) debug_printf_indent("CSA result %s\n", csa_status);
return csa_return_code[rc];
+#ifdef EXPERIMENTAL_ARC
+ case VERIFY_ARC:
+ { /* Do Authenticated Received Chain checks in a separate function. */
+ const uschar * condlist = CUS string_nextinlist(&list, &sep, NULL, 0);
+ int csep = 0;
+ uschar * cond;
+
+ if (!(arc_state = acl_verify_arc())) return DEFER;
+ DEBUG(D_acl) debug_printf_indent("ARC verify result %s %s%s%s\n", arc_state,
+ arc_state_reason ? "(":"", arc_state_reason, arc_state_reason ? ")":"");
+
+ if (!condlist) condlist = US"none:pass";
+ while ((cond = string_nextinlist(&condlist, &csep, NULL, 0)))
+ if (Ustrcmp(arc_state, cond) == 0) return OK;
+ return FAIL;
+ }
+#endif
+
case VERIFY_HDR_SYNTAX:
- /* Check that all relevant header lines have the correct syntax. If there is
+ /* Check that all relevant header lines have the correct 5322-syntax. If there is
a syntax error, we return details of the error to the sender if configured to
send out full details. (But a "message" setting on the ACL can override, as
always). */
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)
+ if (rc != OK && smtp_return_error_details && *log_msgptr)
*user_msgptr = string_sprintf("Rejected after DATA: %s", *log_msgptr);
return rc;
case VERIFY_NOT_BLIND:
/* Check that no recipient of this message is "blind", that is, every envelope
recipient must be mentioned in either To: or Cc:. */
+ {
+ BOOL case_sensitive = TRUE;
+
+ while ((ss = string_nextinlist(&list, &sep, NULL, 0)))
+ if (strcmpic(ss, US"case_insensitive") == 0)
+ case_sensitive = FALSE;
+ else
+ {
+ *log_msgptr = string_sprintf("unknown option \"%s\" in ACL "
+ "condition \"verify %s\"", ss, arg);
+ return ERROR;
+ }
- rc = verify_check_notblind();
- if (rc != OK)
+ if ((rc = verify_check_notblind(case_sensitive)) != OK)
{
- *log_msgptr = string_sprintf("bcc recipient detected");
+ *log_msgptr = US"bcc recipient detected";
if (smtp_return_error_details)
*user_msgptr = string_sprintf("Rejected after DATA: %s", *log_msgptr);
}
return rc;
+ }
/* The remaining verification tests check recipient and sender addresses,
either from the envelope or from the header. There are a number of
/* Remaining items are optional; they apply to sender and recipient
verification, including "header sender" verification. */
-while ((ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size))
- != NULL)
+while ((ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)))
{
if (strcmpic(ss, US"defer_ok") == 0) defer_ok = TRUE;
else if (strcmpic(ss, US"no_details") == 0) no_details = TRUE;
{
const uschar * sublist = ss;
int optsep = ',';
- uschar *opt;
uschar buffer[256];
- while (isspace(*sublist)) sublist++;
+ uschar * opt;
+ while (isspace(*sublist)) sublist++;
while ((opt = string_nextinlist(&sublist, &optsep, buffer, sizeof(buffer))))
{
callout_opt_t * op;
{
if (!*user_msgptr && *log_msgptr)
*user_msgptr = string_sprintf("Rejected after DATA: %s", *log_msgptr);
- if (rc == DEFER) acl_temp_details = TRUE;
+ if (rc == DEFER) f.acl_temp_details = TRUE;
}
}
}
addr2.user_message : addr2.message;
/* Allow details for temporary error if the address is so flagged. */
- if (testflag((&addr2), af_pass_message)) acl_temp_details = TRUE;
+ if (testflag((&addr2), af_pass_message)) f.acl_temp_details = TRUE;
/* Make $address_data visible */
deliver_address_data = addr2.prop.address_data;
* Check argument for control= modifier *
*************************************************/
-/* Called from acl_check_condition() below
+/* Called from acl_check_condition() below.
+To handle the case "queue_only" we accept an _ in the
+initial / option-switch position.
Arguments:
arg the argument string for control=
{
int idx, len;
control_def * d;
+uschar c;
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] != '/')
+ || ( (c = arg[len = Ustrlen((d = controls_list+idx)->name)]) != 0
+ && (!d->has_option || c != '/' && c != '_')
) )
{
*log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
log_msgptr for error messages
format format string
... supplementary arguments
- ss ratelimit option name
- where ACL_WHERE_xxxx indicating which ACL this is
Returns: ERROR
*/
ratelimit_error(uschar **log_msgptr, const char *format, ...)
{
va_list ap;
-uschar buffer[STRING_SPRINTF_BUFFER_SIZE];
+gstring * g =
+ string_cat(NULL, US"error in arguments to \"ratelimit\" condition: ");
+
va_start(ap, format);
-if (!string_vformat(buffer, sizeof(buffer), format, ap))
- log_write(0, LOG_MAIN|LOG_PANIC_DIE,
- "string_sprintf expansion was longer than " SIZE_T_FMT, sizeof(buffer));
+g = string_vformat(g, SVFMT_EXTEND|SVFMT_REBUFFER, format, ap);
va_end(ap);
-*log_msgptr = string_sprintf(
- "error in arguments to \"ratelimit\" condition: %s", buffer);
+
+gstring_release_unused(g);
+*log_msgptr = string_from_gstring(g);
return ERROR;
}
size, which must be greater than or equal to zero. Zero is useful for
rate measurement as opposed to rate limiting. */
-sender_rate_limit = string_nextinlist(&arg, &sep, NULL, 0);
-if (sender_rate_limit == NULL)
+if (!(sender_rate_limit = string_nextinlist(&arg, &sep, NULL, 0)))
return ratelimit_error(log_msgptr, "sender rate limit not set");
limit = Ustrtod(sender_rate_limit, &ss);
constant. This must be strictly greater than zero, because zero leads to
run-time division errors. */
-sender_rate_period = string_nextinlist(&arg, &sep, NULL, 0);
-if (sender_rate_period == NULL) period = -1.0;
-else period = readconf_readtime(sender_rate_period, 0, FALSE);
+period = !(sender_rate_period = string_nextinlist(&arg, &sep, NULL, 0))
+ ? -1.0 : readconf_readtime(sender_rate_period, 0, FALSE);
if (period <= 0.0)
return ratelimit_error(log_msgptr,
"\"%s\" is not a time value", sender_rate_period);
/* Parse the other options. */
-while ((ss = string_nextinlist(&arg, &sep, big_buffer, big_buffer_size))
- != NULL)
+while ((ss = string_nextinlist(&arg, &sep, NULL, 0)))
{
if (strcmpic(ss, US"leaky") == 0) leaky = TRUE;
else if (strcmpic(ss, US"strict") == 0) strict = TRUE;
zero and let the recorded rate decay as if nothing happened. */
RATE_SET(mode, PER_MAIL);
if (where > ACL_WHERE_NOTSMTP) badacl = TRUE;
- else count = message_size < 0 ? 0.0 : (double)message_size;
+ else count = message_size < 0 ? 0.0 : (double)message_size;
}
else if (strcmpic(ss, US"per_addr") == 0)
{
RATE_SET(mode, PER_RCPT);
if (where != ACL_WHERE_RCPT) badacl = TRUE, unique = US"*";
- else unique = string_sprintf("%s@%s", deliver_localpart, deliver_domain);
+ else unique = string_sprintf("%s@%s", deliver_localpart, deliver_domain);
}
else if (strncmpic(ss, US"count=", 6) == 0)
{
uschar *e;
count = Ustrtod(ss+6, &e);
if (count < 0.0 || *e != '\0')
- return ratelimit_error(log_msgptr,
- "\"%s\" is not a positive number", ss);
+ return ratelimit_error(log_msgptr, "\"%s\" is not a positive number", ss);
}
else if (strncmpic(ss, US"unique=", 7) == 0)
unique = string_copy(ss + 7);
- else if (key == NULL)
+ else if (!key)
key = string_copy(ss);
else
key = string_sprintf("%s/%s", key, ss);
return ratelimit_error(log_msgptr, "conflicting update modes");
if (badacl && (leaky || strict) && !noupdate)
return ratelimit_error(log_msgptr,
- "\"%s\" must not have /leaky or /strict option in %s ACL",
+ "\"%s\" must not have /leaky or /strict option, or cannot be used in %s ACL",
ratelimit_option_string[mode], acl_wherenames[where]);
/* Set the default values of any unset options. In readonly mode we
omit it. The smoothing constant (sender_rate_period) and the per_xxx options
are added to the key because they alter the meaning of the stored data. */
-if (key == NULL)
- key = (sender_host_address == NULL)? US"" : sender_host_address;
+if (!key)
+ key = !sender_host_address ? US"" : sender_host_address;
key = string_sprintf("%s/%s/%s%s",
sender_rate_period,
if (readonly)
anchor = &ratelimiters_cmd;
-else switch(mode) {
-case RATE_PER_CONN:
- anchor = &ratelimiters_conn;
- store_pool = POOL_PERM;
- break;
-case RATE_PER_BYTE:
-case RATE_PER_MAIL:
-case RATE_PER_ALLRCPTS:
- anchor = &ratelimiters_mail;
- break;
-case RATE_PER_ADDR:
-case RATE_PER_CMD:
-case RATE_PER_RCPT:
- anchor = &ratelimiters_cmd;
- break;
-default:
- anchor = NULL; /* silence an "unused" complaint */
- log_write(0, LOG_MAIN|LOG_PANIC_DIE,
- "internal ACL error: unknown ratelimit mode %d", mode);
- break;
-}
+else switch(mode)
+ {
+ case RATE_PER_CONN:
+ anchor = &ratelimiters_conn;
+ store_pool = POOL_PERM;
+ break;
+ case RATE_PER_BYTE:
+ case RATE_PER_MAIL:
+ case RATE_PER_ALLRCPTS:
+ anchor = &ratelimiters_mail;
+ break;
+ case RATE_PER_ADDR:
+ case RATE_PER_CMD:
+ case RATE_PER_RCPT:
+ anchor = &ratelimiters_cmd;
+ break;
+ default:
+ anchor = NULL; /* silence an "unused" complaint */
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE,
+ "internal ACL error: unknown ratelimit mode %d", mode);
+ break;
+ }
-t = tree_search(*anchor, key);
-if (t != NULL)
+if ((t = tree_search(*anchor, key)))
{
dbd = t->data.ptr;
/* The following few lines duplicate some of the code below. */
/* We aren't using a pre-computed rate, so get a previously recorded rate
from the database, which will be updated and written back if required. */
-if (!(dbm = dbfn_open(US"ratelimit", O_RDWR, &dbblock, TRUE)))
+if (!(dbm = dbfn_open(US"ratelimit", O_RDWR, &dbblock, TRUE, TRUE)))
{
store_pool = old_pool;
sender_rate = NULL;
gettimeofday(&tv, NULL);
-if (dbdb != NULL)
+if (dbdb)
{
/* Locate the basic ratelimit block inside the DB data. */
HDEBUG(D_acl) debug_printf_indent("ratelimit found key in database\n");
filter because we want its size to change if the limit changes. Note that
we keep the dbd pointer for copying the rate into the new data block. */
- if(unique != NULL && tv.tv_sec > dbdb->bloom_epoch + period)
+ if(unique && tv.tv_sec > dbdb->bloom_epoch + period)
{
HDEBUG(D_acl) debug_printf_indent("ratelimit discarding old Bloom filter\n");
dbdb = NULL;
/* Sanity check. */
- if(unique != NULL && dbdb_size < sizeof(*dbdb))
+ if(unique && dbdb_size < sizeof(*dbdb))
{
HDEBUG(D_acl) debug_printf_indent("ratelimit discarding undersize Bloom filter\n");
dbdb = NULL;
/* Allocate a new data block if the database lookup failed
or the Bloom filter passed its age limit. */
-if (dbdb == NULL)
+if (!dbdb)
{
- if (unique == NULL)
+ if (!unique)
{
/* No Bloom filter. This basic ratelimit block is initialized below. */
HDEBUG(D_acl) debug_printf_indent("ratelimit creating new rate data block\n");
dbdb_size = sizeof(*dbd);
- dbdb = store_get(dbdb_size);
+ dbdb = store_get(dbdb_size, FALSE); /* not tainted */
}
else
{
extra = (int)limit * 2 - sizeof(dbdb->bloom);
if (extra < 0) extra = 0;
dbdb_size = sizeof(*dbdb) + extra;
- dbdb = store_get(dbdb_size);
+ dbdb = store_get(dbdb_size, FALSE); /* not tainted */
dbdb->bloom_epoch = tv.tv_sec;
dbdb->bloom_size = sizeof(dbdb->bloom) + extra;
memset(dbdb->bloom, 0, dbdb->bloom_size);
/* Preserve any basic ratelimit data (which is our longer-term memory)
by copying it from the discarded block. */
- if (dbd != NULL)
+ if (dbd)
{
dbdb->dbd = *dbd;
dbd = &dbdb->dbd;
changes to the filter will be discarded and because count is already set to
zero. */
-if (unique != NULL && !readonly)
+if (unique && !readonly)
{
/* We identify unique events using a Bloom filter. (You can find my
notes on Bloom filters at http://fanf.livejournal.com/81696.html)
the new one, otherwise update the block from the database. The initial rate
is what would be computed by the code below for an infinite interval. */
-if (dbd == NULL)
+if (!dbd)
{
HDEBUG(D_acl) debug_printf_indent("ratelimit initializing new key's rate data\n");
dbd = &dbdb->dbd;
This matters for edge cases such as a limit of zero, when the client
should be completely blocked. */
-rc = (dbd->rate < limit)? FAIL : OK;
+rc = dbd->rate < limit ? FAIL : OK;
/* Update the state if the rate is low or if we are being strict. If we
are in leaky mode and the sender's rate is too high, we do not update
dbfn_close(dbm);
-/* Store the result in the tree for future reference. */
+/* Store the result in the tree for future reference. Take the taint status
+from the key for consistency even though it's unlikely we'll ever expand this. */
-t = store_get(sizeof(tree_node) + Ustrlen(key));
+t = store_get(sizeof(tree_node) + Ustrlen(key), is_tainted(key));
t->data.ptr = dbd;
Ustrcpy(t->name, key);
(void)tree_insertnode(anchor, t);
}
/* Make a single-item host list. */
-h = store_get(sizeof(host_item));
+h = store_get(sizeof(host_item), FALSE);
memset(h, 0, sizeof(host_item));
h->name = hostname;
h->port = portnum;
HDEBUG(D_acl)
debug_printf_indent("udpsend [%s]:%d %s\n", h->address, portnum, arg);
+/*XXX this could better use sendto */
r = s = ip_connectedsocket(SOCK_DGRAM, h->address, portnum, portnum,
- 1, NULL, &errstr);
+ 1, NULL, &errstr, NULL);
if (r < 0) goto defer;
len = Ustrlen(arg);
r = send(s, arg, len, 0);
int sep = -'/';
#endif
-for (; cb != NULL; cb = cb->next)
+for (; cb; cb = cb->next)
{
const uschar *arg;
int control_type;
arg = cb->arg;
else if (!(arg = expand_string(cb->arg)))
{
- if (expand_string_forcedfail) continue;
+ if (f.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;
+ return f.search_find_defer ? DEFER : ERROR;
}
/* Show condition, and expanded condition if it's different */
if (cb->type == ACLC_SET)
{
- debug_printf("acl_%s ", cb->u.varname);
- lhswidth += 5 + Ustrlen(cb->u.varname);
+#ifndef DISABLE_DKIM
+ if ( Ustrcmp(cb->u.varname, "dkim_verify_status") == 0
+ || Ustrcmp(cb->u.varname, "dkim_verify_reason") == 0)
+ {
+ debug_printf("%s ", cb->u.varname);
+ lhswidth += 19;
+ }
+ else
+#endif
+ {
+ debug_printf("acl_%s ", cb->u.varname);
+ lhswidth += 5 + Ustrlen(cb->u.varname);
+ }
}
debug_printf("= %s\n", cb->arg);
break;
case ACLC_AUTHENTICATED:
- rc = (sender_host_authenticated == NULL)? FAIL :
- match_isinlist(sender_host_authenticated, &arg, 0, NULL, NULL, MCL_STRING,
- TRUE, NULL);
+ rc = sender_host_authenticated ? match_isinlist(sender_host_authenticated,
+ &arg, 0, NULL, NULL, MCL_STRING, TRUE, NULL) : FAIL;
break;
#ifdef EXPERIMENTAL_BRIGHTMAIL
switch(control_type)
{
case CONTROL_AUTH_UNADVERTISED:
- allow_auth_unadvertised = TRUE;
- break;
+ f.allow_auth_unadvertised = TRUE;
+ break;
- #ifdef EXPERIMENTAL_BRIGHTMAIL
+#ifdef EXPERIMENTAL_BRIGHTMAIL
case CONTROL_BMI_RUN:
- bmi_run = 1;
- break;
- #endif
+ bmi_run = 1;
+ break;
+#endif
- #ifndef DISABLE_DKIM
+#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
+ f.dkim_disable_verify = TRUE;
+# ifdef SUPPORT_DMARC
+ /* Since DKIM was blocked, skip DMARC too */
+ f.dmarc_disable_verify = TRUE;
+ f.dmarc_enable_forensic = FALSE;
+# endif
break;
- #endif
+#endif
- #ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
case CONTROL_DMARC_VERIFY:
- dmarc_disable_verify = TRUE;
- break;
+ f.dmarc_disable_verify = TRUE;
+ break;
case CONTROL_DMARC_FORENSIC:
- dmarc_enable_forensic = TRUE;
- break;
- #endif
+ f.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)
+ if (*p == '/')
{
- HDEBUG(D_acl)
- debug_printf_indent("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)
+ 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);
+ if ((af = ip_get_address_family(fd)) < 0)
{
- HDEBUG(D_acl) debug_printf_indent("failed to set input DSCP[%s]: %s\n",
- p+1, strerror(errno));
+ HDEBUG(D_acl)
+ debug_printf_indent("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_indent("failed to set input DSCP[%s]: %s\n",
+ p+1, strerror(errno));
+ }
+ else
+ {
+ HDEBUG(D_acl) debug_printf_indent("set input DSCP to \"%s\"\n", p+1);
+ }
else
{
- HDEBUG(D_acl) debug_printf_indent("set input DSCP to \"%s\"\n", p+1);
+ *log_msgptr = string_sprintf("unrecognised DSCP value in \"control=%s\"", arg);
+ return ERROR;
}
}
else
{
- *log_msgptr = string_sprintf("unrecognised DSCP value in \"control=%s\"", arg);
+ *log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
return ERROR;
}
- }
- else
- {
- *log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
- return ERROR;
- }
- break;
+ break;
case CONTROL_ERROR:
- return ERROR;
+ return ERROR;
case CONTROL_CASEFUL_LOCAL_PART:
- deliver_localpart = addr->cc_local_part;
- break;
+ deliver_localpart = addr->cc_local_part;
+ break;
case CONTROL_CASELOWER_LOCAL_PART:
- deliver_localpart = addr->lc_local_part;
- break;
+ deliver_localpart = addr->lc_local_part;
+ break;
case CONTROL_ENFORCE_SYNC:
- smtp_enforce_sync = TRUE;
- break;
+ smtp_enforce_sync = TRUE;
+ break;
case CONTROL_NO_ENFORCE_SYNC:
- smtp_enforce_sync = FALSE;
- break;
+ smtp_enforce_sync = FALSE;
+ break;
- #ifdef WITH_CONTENT_SCAN
+#ifdef WITH_CONTENT_SCAN
case CONTROL_NO_MBOX_UNSPOOL:
- no_mbox_unspool = TRUE;
- break;
- #endif
+ f.no_mbox_unspool = TRUE;
+ break;
+#endif
case CONTROL_NO_MULTILINE:
- no_multiline_responses = TRUE;
- break;
+ f.no_multiline_responses = TRUE;
+ break;
case CONTROL_NO_PIPELINING:
- pipelining_enable = FALSE;
- break;
+ f.pipelining_enable = FALSE;
+ break;
case CONTROL_NO_DELAY_FLUSH:
- disable_delay_flush = TRUE;
- break;
+ f.disable_delay_flush = TRUE;
+ break;
case CONTROL_NO_CALLOUT_FLUSH:
- disable_callout_flush = TRUE;
- break;
+ f.disable_callout_flush = TRUE;
+ break;
case CONTROL_FAKEREJECT:
- cancel_cutthrough_connection(TRUE, US"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;
+ cancel_cutthrough_connection(TRUE, US"fakereject");
+ case CONTROL_FAKEDEFER:
+ fake_response = (control_type == CONTROL_FAKEDEFER) ? DEFER : FAIL;
+ if (*p == '/')
+ {
+ const uschar *pp = p + 1;
+ while (*pp) 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(TRUE, US"item frozen");
- break;
+ f.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)
+ {
+ *log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
+ return ERROR;
+ }
+ cancel_cutthrough_connection(TRUE, US"item frozen");
+ break;
- case CONTROL_QUEUE_ONLY:
- queue_only_policy = TRUE;
- cancel_cutthrough_connection(TRUE, US"queueing forced");
- break;
+ case CONTROL_QUEUE:
+ f.queue_only_policy = TRUE;
+ if (Ustrcmp(p, "_only") == 0)
+ p += 5;
+ else while (*p == '/')
+ if (Ustrncmp(p, "/only", 5) == 0)
+ { p += 5; f.queue_smtp = FALSE; }
+ else if (Ustrncmp(p, "/first_pass_route", 17) == 0)
+ { p += 17; f.queue_smtp = TRUE; }
+ else
+ break;
+ cancel_cutthrough_connection(TRUE, US"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)
+ originator_name = US"";
+ f.submission_mode = TRUE;
+ while (*p == '/')
{
- const uschar *pp = p + 8;
- while (*pp != 0 && *pp != '/') pp++;
- submission_domain = string_copyn(p+8, pp-p-8);
- p = pp;
+ if (Ustrncmp(p, "/sender_retain", 14) == 0)
+ {
+ p += 14;
+ f.active_local_sender_retain = TRUE;
+ f.active_local_from_check = FALSE;
+ }
+ else if (Ustrncmp(p, "/domain=", 8) == 0)
+ {
+ const uschar *pp = p + 8;
+ while (*pp && *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) pp++;
+ submission_name = string_copy(parse_fix_phrase(p+6, pp-p-6,
+ big_buffer, big_buffer_size));
+ p = pp;
+ }
+ else break;
}
- /* The name= option must be last, because it swallows the rest of
- the string. */
- else if (Ustrncmp(p, "/name=", 6) == 0)
+ if (*p)
{
- 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;
+ *log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
+ return ERROR;
}
- else break;
- }
- if (*p != 0)
- {
- *log_msgptr = string_sprintf("syntax error in \"control=%s\"", arg);
- return ERROR;
- }
- break;
+ break;
case CONTROL_DEBUG:
{
debug_logging_stop();
else
debug_logging_activate(debug_tag, debug_opts);
+ break;
}
- break;
case CONTROL_SUPPRESS_LOCAL_FIXUPS:
- suppress_local_fixups = TRUE;
- break;
+ f.suppress_local_fixups = TRUE;
+ break;
case CONTROL_CUTTHROUGH_DELIVERY:
+ {
+ uschar * ignored = NULL;
#ifndef DISABLE_PRDR
- if (prdr_requested)
+ if (prdr_requested)
#else
- if (0)
+ 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";
+ /* 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" */
+ ignored = US"PRDR active";
else
{
- if (rcpt_count == 1)
+ if (f.deliver_freeze)
+ ignored = US"frozen";
+ else if (f.queue_only_policy)
+ ignored = US"queue-only";
+ else if (fake_response == FAIL)
+ ignored = US"fakereject";
+ else
{
- cutthrough.delivery = TRUE;
- while (*p == '/')
+ if (rcpt_count == 1)
{
- const uschar * pp = p+1;
- if (Ustrncmp(pp, "defer=", 6) == 0)
+ cutthrough.delivery = TRUE; /* control accepted */
+ while (*p == '/')
{
- pp += 6;
- if (Ustrncmp(pp, "pass", 4) == 0) cutthrough.defer_pass = TRUE;
- /* else if (Ustrncmp(pp, "spool") == 0) ; default */
+ 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;
}
- else
- while (*pp && *pp != '/') pp++;
- p = pp;
}
+ else
+ ignored = US"nonfirst rcpt";
}
- break;
}
- *log_msgptr = string_sprintf("\"control=%s\" on %s item",
- arg, *log_msgptr);
+ DEBUG(D_acl) if (ignored)
+ debug_printf(" cutthrough request ignored on %s item\n", ignored);
}
- return ERROR;
+ break;
#ifdef SUPPORT_I18N
case CONTROL_UTF8_DOWNCONVERT:
- if (*p == '/')
- {
- if (p[1] == '1')
+ if (*p == '/')
{
- message_utf8_downconvert = 1;
- addr->prop.utf8_downcvt = TRUE;
- addr->prop.utf8_downcvt_maybe = FALSE;
- p += 2;
- break;
+ 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";
}
- if (p[1] == '0')
+ else
{
- message_utf8_downconvert = 0;
- addr->prop.utf8_downcvt = FALSE;
+ message_utf8_downconvert = 1;
+ addr->prop.utf8_downcvt = TRUE;
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;
+ return ERROR;
#endif
}
else
{
- if (smtp_out != NULL && !disable_delay_flush)
+ if (smtp_out && !f.disable_delay_flush)
mac_smtp_fflush();
#if !defined(NO_POLL_H) && defined (POLLRDHUP)
HDEBUG(D_acl) debug_printf_indent("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
- that the client has closed its end of the connection. (The connection
- is actually in a half-closed state, waiting for the server to close its
- end.) It would be nice to be able to detect this state, so that the
- 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.
- */
+ /* Lacking POLLRDHUP 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 that the client has closed its end of the
+ connection. (The connection is actually in a half-closed state,
+ waiting for the server to close its end.) It would be nice to be able
+ to detect this state, so that the 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. */
while (delay > 0) delay = sleep(delay);
#endif
#ifndef DISABLE_DKIM
case ACLC_DKIM_SIGNER:
- if (dkim_cur_signer != NULL)
+ if (dkim_cur_signer)
rc = match_isinlist(dkim_cur_signer,
&arg,0,NULL,NULL,MCL_STRING,TRUE,NULL);
else
break;
case ACLC_DKIM_STATUS:
- rc = match_isinlist(dkim_exim_expand_query(DKIM_VERIFY_STATUS),
+ rc = match_isinlist(dkim_verify_status,
&arg,0,NULL,NULL,MCL_STRING,TRUE,NULL);
break;
#endif
- #ifdef EXPERIMENTAL_DMARC
+#ifdef SUPPORT_DMARC
case ACLC_DMARC_STATUS:
- if (!dmarc_has_been_checked)
+ if (!f.dmarc_has_been_checked)
dmarc_process();
- dmarc_has_been_checked = TRUE;
+ f.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
+#endif
case ACLC_DNSLISTS:
rc = verify_check_dnsbl(where, &arg, log_msgptr);
{
uschar *endcipher = NULL;
uschar *cipher = Ustrchr(tls_in.cipher, ':');
- if (cipher == NULL) cipher = tls_in.cipher; else
+ if (!cipher) cipher = tls_in.cipher; else
{
endcipher = Ustrchr(++cipher, ':');
- if (endcipher != NULL) *endcipher = 0;
+ if (endcipher) *endcipher = 0;
}
rc = match_isinlist(cipher, &arg, 0, NULL, NULL, MCL_STRING, TRUE, NULL);
- if (endcipher != NULL) *endcipher = ':';
+ if (endcipher) *endcipher = ':';
}
break;
case ACLC_HOSTS:
rc = verify_check_this_host(&arg, sender_host_cache, NULL,
- (sender_host_address == NULL)? US"" : sender_host_address,
- CUSS &host_data);
+ sender_host_address ? sender_host_address : US"", CUSS &host_data);
if (rc == DEFER) *log_msgptr = search_error_message;
- if (host_data) host_data = string_copy_malloc(host_data);
+ if (host_data) host_data = string_copy_perm(host_data, TRUE);
break;
case ACLC_LOCAL_PARTS:
int logbits = 0;
int sep = 0;
const uschar *s = arg;
- uschar *ss;
+ uschar * ss;
while ((ss = string_nextinlist(&s, &sep, big_buffer, big_buffer_size)))
{
if (Ustrcmp(ss, "main") == 0) logbits |= LOG_MAIN;
}
while (isspace(*s)) s++;
-
if (logbits == 0) logbits = LOG_MAIN;
log_write(0, logbits, "%s", string_printing(s));
}
{
/* Separate the regular expression and any optional parameters. */
const uschar * list = arg;
- uschar *ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size);
- uschar *opt;
+ uschar * ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size);
+ uschar * opt;
BOOL defer_ok = FALSE;
int timeout = 0;
#endif
case ACLC_QUEUE:
- queue_name = string_copy_malloc(arg);
+ if (is_tainted(arg))
+ {
+ *log_msgptr = string_sprintf("Tainted name '%s' for queue not permitted",
+ arg);
+ return ERROR;
+ }
+ if (Ustrchr(arg, '/'))
+ {
+ *log_msgptr = string_sprintf(
+ "Directory separator not permitted in queue name: '%s'", arg);
+ return ERROR;
+ }
+ queue_name = string_copy_perm(arg, FALSE);
break;
case ACLC_RATELIMIT:
sender_address_cache, -1, 0, CUSS &sender_data);
break;
- /* Connection variables must persist forever */
+ /* Connection variables must persist forever; message variables not */
case ACLC_SET:
{
int old_pool = store_pool;
- if ( cb->u.varname[0] == 'c'
+ if ( cb->u.varname[0] != 'm'
#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);
+#ifndef DISABLE_DKIM /* Overwriteable dkim result variables */
+ if (Ustrcmp(cb->u.varname, "dkim_verify_status") == 0)
+ dkim_verify_status = string_copy(arg);
+ else if (Ustrcmp(cb->u.varname, "dkim_verify_reason") == 0)
+ dkim_verify_reason = string_copy(arg);
+ else
+#endif
+ acl_var_create(cb->u.varname)->data.ptr = string_copy(arg);
store_pool = old_pool;
}
break;
- #ifdef WITH_CONTENT_SCAN
+#ifdef WITH_CONTENT_SCAN
case ACLC_SPAM:
{
/* 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(CUSS &ss);
/* Modify return code based upon the existence of options. */
- while ((ss = string_nextinlist(&list, &sep, big_buffer, big_buffer_size))
- != NULL) {
+ 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
+#endif
- #ifdef EXPERIMENTAL_SPF
+#ifdef SUPPORT_SPF
case ACLC_SPF:
rc = spf_process(&arg, sender_address, SPF_PROCESS_NORMAL);
break;
case ACLC_SPF_GUESS:
rc = spf_process(&arg, sender_address, SPF_PROCESS_GUESS);
break;
- #endif
+#endif
case ACLC_UDPSEND:
rc = acl_udpsend(arg, log_msgptr);
if (*epp && rc == OK) user_message = NULL;
-if (((1<<rc) & msgcond[verb]) != 0)
+if ((BIT(rc) & msgcond[verb]) != 0)
{
uschar *expmessage;
uschar *old_user_msgptr = *user_msgptr;
(rc == OK && (verb == ACL_ACCEPT || verb == ACL_DISCARD)))
*log_msgptr = *user_msgptr = NULL;
- if (user_message != NULL)
+ if (user_message)
{
acl_verify_message = old_user_msgptr;
expmessage = expand_string(user_message);
- if (expmessage == NULL)
+ if (!expmessage)
{
- if (!expand_string_forcedfail)
+ if (!f.expand_string_forcedfail)
log_write(0, LOG_MAIN|LOG_PANIC, "failed to expand ACL message \"%s\": %s",
user_message, expand_string_message);
}
else if (expmessage[0] != 0) *user_msgptr = expmessage;
}
- if (log_message != NULL)
+ if (log_message)
{
acl_verify_message = old_log_msgptr;
expmessage = expand_string(log_message);
- if (expmessage == NULL)
+ if (!expmessage)
{
- if (!expand_string_forcedfail)
+ if (!f.expand_string_forcedfail)
log_write(0, LOG_MAIN|LOG_PANIC, "failed to expand ACL message \"%s\": %s",
log_message, expand_string_message);
}
/* If no log message, default it to the user message */
- if (*log_msgptr == NULL) *log_msgptr = *user_msgptr;
+ if (!*log_msgptr) *log_msgptr = *user_msgptr;
}
acl_verify_message = NULL;
for(;;)
{
- while (isspace(*acl_text)) acl_text++; /* Leading spaces/empty lines */
- if (*acl_text == 0) return NULL; /* No more data */
- yield = acl_text; /* Potential data line */
+ Uskip_whitespace(&acl_text); /* Leading spaces/empty lines */
+ if (!*acl_text) return NULL; /* No more data */
+ yield = acl_text; /* Potential data line */
- while (*acl_text != 0 && *acl_text != '\n') acl_text++;
+ while (*acl_text && *acl_text != '\n') acl_text++;
/* If we hit the end before a newline, we have the whole logical line. If
it's a comment, there's no more data to be given. Otherwise, yield it. */
- if (*acl_text == 0) return (*yield == '#')? NULL : yield;
+ if (!*acl_text) return *yield == '#' ? NULL : yield;
/* After reaching a newline, end this loop if the physical line does not
start with '#'. If it does, it's a comment, and the loop continues. */
{
if (!(ss = expand_string(s)))
{
- if (expand_string_forcedfail) return OK;
+ if (f.expand_string_forcedfail) return OK;
*log_msgptr = string_sprintf("failed to expand ACL string \"%s\": %s", s,
expand_string_message);
return ERROR;
}
else ss = s;
-while (isspace(*ss))ss++;
+while (isspace(*ss)) ss++;
/* If we can't find a named ACL, the default is to parse it as an inline one.
(Unless it begins with a slash; non-existent files give rise to an error.) */
if (Ustrchr(ss, ' ') == NULL)
{
- tree_node *t = tree_search(acl_anchor, ss);
- if (t != NULL)
+ tree_node * t = tree_search(acl_anchor, ss);
+ if (t)
{
- acl = (acl_block *)(t->data.ptr);
- if (acl == NULL)
+ if (!(acl = (acl_block *)(t->data.ptr)))
{
HDEBUG(D_acl) debug_printf_indent("ACL \"%s\" is empty: implicit DENY\n", ss);
return FAIL;
else if (*ss == '/')
{
struct stat statbuf;
- fd = Uopen(ss, O_RDONLY, 0);
- if (fd < 0)
+ if (is_tainted(ss))
+ {
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "attempt to open tainted ACL file name \"%s\"", ss);
+ /* Avoid leaking info to an attacker */
+ *log_msgptr = US"internal configuration error";
+ return ERROR;
+ }
+ if ((fd = Uopen(ss, O_RDONLY, 0)) < 0)
{
*log_msgptr = string_sprintf("failed to open ACL file \"%s\": %s", ss,
strerror(errno));
return ERROR;
}
-
if (fstat(fd, &statbuf) != 0)
{
*log_msgptr = string_sprintf("failed to fstat ACL file \"%s\": %s", ss,
return ERROR;
}
- acl_text = store_get(statbuf.st_size + 1);
+ /* If the string being used as a filename is tainted, so is the file content */
+ acl_text = store_get(statbuf.st_size + 1, is_tainted(ss));
acl_text_end = acl_text + statbuf.st_size + 1;
if (read(fd, acl_text, statbuf.st_size) != statbuf.st_size)
in the ACL tree, having read it into the POOL_PERM store pool so that it
persists between multiple messages. */
-if (acl == NULL)
+if (!acl)
{
int old_pool = store_pool;
if (fd >= 0) store_pool = POOL_PERM;
acl = acl_read(acl_getline, log_msgptr);
store_pool = old_pool;
- if (acl == NULL && *log_msgptr != NULL) return ERROR;
+ if (!acl && *log_msgptr) return ERROR;
if (fd >= 0)
{
- tree_node *t = store_get_perm(sizeof(tree_node) + Ustrlen(ss));
+ tree_node *t = store_get_perm(sizeof(tree_node) + Ustrlen(ss), is_tainted(ss));
Ustrcpy(t->name, ss);
t->data.ptr = acl;
(void)tree_insertnode(&acl_anchor, t);
/* Now we have an ACL to use. It's possible it may be NULL. */
-while (acl != NULL)
+while (acl)
{
int cond;
int basic_errno = 0;
&& (where == ACL_WHERE_QUIT || where == ACL_WHERE_NOTQUIT);
*log_msgptr = *user_msgptr = NULL;
- acl_temp_details = FALSE;
+ f.acl_temp_details = FALSE;
- HDEBUG(D_acl) debug_printf_indent("processing \"%s\"\n", verbs[acl->verb]);
+ HDEBUG(D_acl) debug_printf_indent("processing \"%s\" (%s %d)\n",
+ verbs[acl->verb], acl->srcfile, acl->srcline);
/* Clear out any search error message from a previous check before testing
this condition. */
switch (cond)
{
case DEFER:
- HDEBUG(D_acl) debug_printf_indent("%s: condition test deferred in %s\n", verbs[acl->verb], acl_name);
- if (basic_errno != ERRNO_CALLOUTDEFER)
- {
- if (search_error_message != NULL && *search_error_message != 0)
- *log_msgptr = search_error_message;
- if (smtp_return_error_details) acl_temp_details = TRUE;
- }
- else
- {
- acl_temp_details = TRUE;
- }
- if (acl->verb != ACL_WARN) return DEFER;
- break;
+ HDEBUG(D_acl) debug_printf_indent("%s: condition test deferred in %s\n",
+ verbs[acl->verb], acl_name);
+ if (basic_errno != ERRNO_CALLOUTDEFER)
+ {
+ if (search_error_message != NULL && *search_error_message != 0)
+ *log_msgptr = search_error_message;
+ if (smtp_return_error_details) f.acl_temp_details = TRUE;
+ }
+ else
+ f.acl_temp_details = TRUE;
+ if (acl->verb != ACL_WARN) return DEFER;
+ break;
default: /* Paranoia */
case ERROR:
- HDEBUG(D_acl) debug_printf_indent("%s: condition test error in %s\n", verbs[acl->verb], acl_name);
- return ERROR;
+ HDEBUG(D_acl) debug_printf_indent("%s: condition test error in %s\n",
+ verbs[acl->verb], acl_name);
+ return ERROR;
case OK:
- HDEBUG(D_acl) debug_printf_indent("%s: condition test succeeded in %s\n",
- verbs[acl->verb], acl_name);
- break;
+ HDEBUG(D_acl) debug_printf_indent("%s: condition test succeeded in %s\n",
+ verbs[acl->verb], acl_name);
+ break;
case FAIL:
- HDEBUG(D_acl) debug_printf_indent("%s: condition test failed in %s\n", verbs[acl->verb], acl_name);
- break;
+ HDEBUG(D_acl) debug_printf_indent("%s: condition test failed in %s\n",
+ verbs[acl->verb], acl_name);
+ break;
/* DISCARD and DROP can happen only from a nested ACL condition, and
DISCARD can happen only for an "accept" or "discard" verb. */
case DISCARD:
- HDEBUG(D_acl) debug_printf_indent("%s: condition test yielded \"discard\" in %s\n",
- verbs[acl->verb], acl_name);
- break;
+ HDEBUG(D_acl) debug_printf_indent("%s: condition test yielded \"discard\" in %s\n",
+ verbs[acl->verb], acl_name);
+ break;
case FAIL_DROP:
- HDEBUG(D_acl) debug_printf_indent("%s: condition test yielded \"drop\" in %s\n",
- verbs[acl->verb], acl_name);
- break;
+ HDEBUG(D_acl) debug_printf_indent("%s: condition test yielded \"drop\" in %s\n",
+ verbs[acl->verb], acl_name);
+ break;
}
/* At this point, cond for most verbs is either OK or FAIL or (as a result of
switch(acl->verb)
{
case ACL_ACCEPT:
- if (cond == OK || cond == DISCARD)
- {
- HDEBUG(D_acl) debug_printf_indent("end of %s: ACCEPT\n", acl_name);
- return cond;
- }
- if (endpass_seen)
- {
- HDEBUG(D_acl) debug_printf_indent("accept: endpass encountered - denying access\n");
- return cond;
- }
- break;
+ if (cond == OK || cond == DISCARD)
+ {
+ HDEBUG(D_acl) debug_printf_indent("end of %s: ACCEPT\n", acl_name);
+ return cond;
+ }
+ if (endpass_seen)
+ {
+ HDEBUG(D_acl) debug_printf_indent("accept: endpass encountered - denying access\n");
+ return cond;
+ }
+ break;
case ACL_DEFER:
- if (cond == OK)
- {
- HDEBUG(D_acl) debug_printf_indent("end of %s: DEFER\n", acl_name);
- if (acl_quit_check) goto badquit;
- acl_temp_details = TRUE;
- return DEFER;
- }
- break;
+ if (cond == OK)
+ {
+ HDEBUG(D_acl) debug_printf_indent("end of %s: DEFER\n", acl_name);
+ if (acl_quit_check) goto badquit;
+ f.acl_temp_details = TRUE;
+ return DEFER;
+ }
+ break;
case ACL_DENY:
- if (cond == OK)
- {
- HDEBUG(D_acl) debug_printf_indent("end of %s: DENY\n", acl_name);
- if (acl_quit_check) goto badquit;
- return FAIL;
- }
- break;
+ if (cond == OK)
+ {
+ HDEBUG(D_acl) debug_printf_indent("end of %s: DENY\n", acl_name);
+ if (acl_quit_check) goto badquit;
+ return FAIL;
+ }
+ break;
case ACL_DISCARD:
- if (cond == OK || cond == DISCARD)
- {
- HDEBUG(D_acl) debug_printf_indent("end of %s: DISCARD\n", acl_name);
- if (acl_quit_check) goto badquit;
- return DISCARD;
- }
- if (endpass_seen)
- {
- HDEBUG(D_acl) debug_printf_indent("discard: endpass encountered - denying access\n");
- return cond;
- }
- break;
+ if (cond == OK || cond == DISCARD)
+ {
+ HDEBUG(D_acl) debug_printf_indent("end of %s: DISCARD\n", acl_name);
+ if (acl_quit_check) goto badquit;
+ return DISCARD;
+ }
+ if (endpass_seen)
+ {
+ HDEBUG(D_acl)
+ debug_printf_indent("discard: endpass encountered - denying access\n");
+ return cond;
+ }
+ break;
case ACL_DROP:
- if (cond == OK)
- {
- HDEBUG(D_acl) debug_printf_indent("end of %s: DROP\n", acl_name);
- if (acl_quit_check) goto badquit;
- return FAIL_DROP;
- }
- break;
+ if (cond == OK)
+ {
+ HDEBUG(D_acl) debug_printf_indent("end of %s: DROP\n", acl_name);
+ if (acl_quit_check) goto badquit;
+ return FAIL_DROP;
+ }
+ break;
case ACL_REQUIRE:
- if (cond != OK)
- {
- HDEBUG(D_acl) debug_printf_indent("end of %s: not OK\n", acl_name);
- if (acl_quit_check) goto badquit;
- return cond;
- }
- break;
+ if (cond != OK)
+ {
+ HDEBUG(D_acl) debug_printf_indent("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 && 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": ",
- (*log_msgptr == NULL)? US"" : *log_msgptr);
- *log_msgptr = *user_msgptr = NULL; /* In case implicit DENY follows */
- break;
+ if (cond == OK)
+ acl_warn(where, *user_msgptr, *log_msgptr);
+ 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": ",
+ (*log_msgptr == NULL)? US"" : *log_msgptr);
+ *log_msgptr = *user_msgptr = NULL; /* In case implicit DENY follows */
+ break;
default:
- log_write(0, LOG_MAIN|LOG_PANIC_DIE, "internal ACL error: unknown verb %d",
- acl->verb);
- break;
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE, "internal ACL error: unknown verb %d",
+ acl->verb);
+ break;
}
/* Pass to the next ACL item */
return ret;
bad:
-if (expand_string_forcedfail) return ERROR;
+if (f.expand_string_forcedfail) return ERROR;
*log_msgptr = string_sprintf("failed to expand ACL string \"%s\": %s",
tmp, expand_string_message);
-return search_find_defer?DEFER:ERROR;
+return f.search_find_defer ? DEFER : ERROR;
}
case ACL_WHERE_PRDR:
#endif
- if (host_checking_callout) /* -bhc mode */
+ if (f.host_checking_callout) /* -bhc mode */
cancel_cutthrough_connection(TRUE, US"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_indent("cutthrough defer; will spool\n");
- rc = OK;
- }
+ {
+ if ((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;
+ f.acl_temp_details = TRUE;
+ }
+ else
+ {
+ HDEBUG(D_acl) debug_printf_indent("cutthrough defer; will spool\n");
+ rc = OK;
+ }
+ }
+ else HDEBUG(D_acl) if (cutthrough.delivery)
+ if (rcpt_count <= cutthrough.nrcpt)
+ debug_printf_indent("ignore cutthrough request; nonfirst message\n");
+ else if (rc != OK)
+ debug_printf_indent("ignore cutthrough request; ACL did not accept\n");
break;
case ACL_WHERE_PREDATA:
}
deliver_domain = deliver_localpart = deliver_address_data =
- sender_address_data = NULL;
+ deliver_domain_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. */
tree_node * node, ** root = name[0] == 'c' ? &acl_var_c : &acl_var_m;
if (!(node = tree_search(*root, name)))
{
- node = store_get(sizeof(tree_node) + Ustrlen(name));
+ node = store_get(sizeof(tree_node) + Ustrlen(name), is_tainted(name));
Ustrcpy(node->name, name);
(void)tree_insertnode(root, node);
}
acl_var_write(uschar *name, uschar *value, void *ctx)
{
FILE *f = (FILE *)ctx;
+if (is_tainted(value)) putc('-', f);
fprintf(f, "-acl%c %s %d\n%s\n", name[0], name+1, Ustrlen(value), value);
}
git://git.exim.org / users / jgh / exim.git / blobdiff