* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2009 */
+/* Copyright (c) University of Cambridge 1995 - 2014 */
/* See the file NOTICE for conditions of use and distribution. */
/* The main code for delivering a message. */
static address_item *addr_remote = NULL;
static address_item *addr_route = NULL;
static address_item *addr_succeed = NULL;
+#ifdef EXPERIMENTAL_DSN
+static address_item *addr_dsntmp = NULL;
+static address_item *addr_senddsn = NULL;
+#endif
static FILE *message_log = NULL;
static BOOL update_spool;
if (addr->host_list == NULL)
{
deliver_host = deliver_host_address = US"";
+ deliver_host_port = 0;
}
else
{
deliver_host = addr->host_list->name;
deliver_host_address = addr->host_list->address;
+ deliver_host_port = addr->host_list->port;
}
deliver_recipients = addr;
+static uschar *
+d_hostlog(uschar * s, int * sizep, int * ptrp, address_item * addr)
+{
+ s = string_append(s, sizep, ptrp, 5, US" H=", addr->host_used->name,
+ US" [", addr->host_used->address, US"]");
+ if ((log_extra_selector & LX_outgoing_port) != 0)
+ s = string_append(s, sizep, ptrp, 2, US":", string_sprintf("%d",
+ addr->host_used->port));
+ return s;
+}
+
+#ifdef SUPPORT_TLS
+static uschar *
+d_tlslog(uschar * s, int * sizep, int * ptrp, address_item * addr)
+{
+ if ((log_extra_selector & LX_tls_cipher) != 0 && addr->cipher != NULL)
+ s = string_append(s, sizep, ptrp, 2, US" X=", addr->cipher);
+ if ((log_extra_selector & LX_tls_certificate_verified) != 0 &&
+ addr->cipher != NULL)
+ s = string_append(s, sizep, ptrp, 2, US" CV=",
+ testflag(addr, af_cert_verified)
+ ?
+#ifdef EXPERIMENTAL_DANE
+ testflag(addr, af_dane_verified)
+ ? "dane"
+ :
+#endif
+ "yes"
+ : "no");
+ if ((log_extra_selector & LX_tls_peerdn) != 0 && addr->peerdn != NULL)
+ s = string_append(s, sizep, ptrp, 3, US" DN=\"",
+ string_printing(addr->peerdn), US"\"");
+ return s;
+}
+#endif
+
+
+
+
+#ifdef EXPERIMENTAL_EVENT
+uschar *
+event_raise(uschar * action, uschar * event, uschar * ev_data)
+{
+uschar * s;
+if (action)
+ {
+ DEBUG(D_deliver)
+ debug_printf("Event(%s): event_action=|%s| delivery_IP=%s\n",
+ event,
+ action, deliver_host_address);
+
+ event_name = event;
+ event_data = ev_data;
+
+ if (!(s = expand_string(action)) && *expand_string_message)
+ log_write(0, LOG_MAIN|LOG_PANIC,
+ "failed to expand event_action %s in %s: %s\n",
+ event, transport_name, expand_string_message);
+
+ event_name = event_data = NULL;
+
+ /* If the expansion returns anything but an empty string, flag for
+ the caller to modify his normal processing
+ */
+ if (s && *s)
+ {
+ DEBUG(D_deliver)
+ debug_printf("Event(%s): event_action returned \"%s\"\n", event, s);
+ return s;
+ }
+ }
+return NULL;
+}
+
+static void
+msg_event_raise(uschar * event, address_item * addr)
+{
+uschar * save_domain = deliver_domain;
+uschar * save_local = deliver_localpart;
+uschar * save_host = deliver_host;
+
+if (!addr->transport)
+ return;
+
+router_name = addr->router ? addr->router->name : NULL;
+transport_name = addr->transport->name;
+deliver_domain = addr->domain;
+deliver_localpart = addr->local_part;
+deliver_host = addr->host_used ? addr->host_used->name : NULL;
+
+(void) event_raise(addr->transport->event_action, event,
+ addr->host_used || Ustrcmp(addr->transport->driver_name, "lmtp") == 0
+ ? addr->message : NULL);
+
+deliver_host = save_host;
+deliver_localpart = save_local;
+deliver_domain = save_domain;
+router_name = transport_name = NULL;
+}
+#endif /*EXPERIMENTAL_EVENT*/
+
+
+
+/* If msg is NULL this is a delivery log and logchar is used. Otherwise
+this is a nonstandard call; no two-character delivery flag is written
+but sender-host and sender are prefixed and "msg" is inserted in the log line.
+
+Arguments:
+ flags passed to log_write()
+*/
void
-delivery_log(address_item * addr, int logchar)
+delivery_log(int flags, address_item * addr, int logchar, uschar * msg)
{
uschar *log_address;
int size = 256; /* Used for a temporary, */
uschar *s; /* building log lines; */
void *reset_point; /* released afterwards. */
-
/* Log the delivery on the main log. We use an extensible string to build up
the log line, and reset the store afterwards. Remote deliveries should always
have a pointer to the host item that succeeded; local deliveries can have a
pointer to a single host item in their host list, for use by the transport. */
+#ifdef EXPERIMENTAL_EVENT
+ /* presume no successful remote delivery */
+ lookup_dnssec_authenticated = NULL;
+#endif
+
s = reset_point = store_get(size);
-s[ptr++] = logchar;
log_address = string_log_address(addr, (log_write_selector & L_all_parents) != 0, TRUE);
-s = string_append(s, &size, &ptr, 2, US"> ", log_address);
+if (msg)
+ s = string_append(s, &size, &ptr, 3, host_and_ident(TRUE), US" ", log_address);
+else
+ {
+ s[ptr++] = logchar;
+ s = string_append(s, &size, &ptr, 2, US"> ", log_address);
+ }
-if ((log_extra_selector & LX_sender_on_delivery) != 0)
+if ((log_extra_selector & LX_sender_on_delivery) != 0 || msg)
s = string_append(s, &size, &ptr, 3, US" F=<", sender_address, US">");
#ifdef EXPERIMENTAL_SRS
(log_extra_selector & LX_return_path_on_delivery) != 0)
s = string_append(s, &size, &ptr, 3, US" P=<", used_return_path, US">");
-/* For a delivery from a system filter, there may not be a router */
+if (msg)
+ s = string_append(s, &size, &ptr, 2, US" ", msg);
+/* For a delivery from a system filter, there may not be a router */
if (addr->router != NULL)
s = string_append(s, &size, &ptr, 2, US" R=", addr->router->name);
if (addr->transport->info->local)
{
- if (addr->host_list != NULL)
+ if (addr->host_list)
s = string_append(s, &size, &ptr, 2, US" H=", addr->host_list->name);
if (addr->shadow_message != NULL)
s = string_cat(s, &size, &ptr, addr->shadow_message,
else
{
- if (addr->host_used != NULL)
+ if (addr->host_used)
{
- s = string_append(s, &size, &ptr, 5, US" H=", addr->host_used->name,
- US" [", addr->host_used->address, US"]");
- if ((log_extra_selector & LX_outgoing_port) != 0)
- s = string_append(s, &size, &ptr, 2, US":", string_sprintf("%d",
- addr->host_used->port));
+ s = d_hostlog(s, &size, &ptr, addr);
if (continue_sequence > 1)
s = string_cat(s, &size, &ptr, US"*", 1);
+
+#ifdef EXPERIMENTAL_EVENT
+ deliver_host_address = addr->host_used->address;
+ deliver_host_port = addr->host_used->port;
+ deliver_host = addr->host_used->name;
+
+ /* DNS lookup status */
+ lookup_dnssec_authenticated = addr->host_used->dnssec==DS_YES ? US"yes"
+ : addr->host_used->dnssec==DS_NO ? US"no"
+ : NULL;
+#endif
}
- #ifdef SUPPORT_TLS
- if ((log_extra_selector & LX_tls_cipher) != 0 && addr->cipher != NULL)
- s = string_append(s, &size, &ptr, 2, US" X=", addr->cipher);
- if ((log_extra_selector & LX_tls_certificate_verified) != 0 &&
- addr->cipher != NULL)
- s = string_append(s, &size, &ptr, 2, US" CV=",
- testflag(addr, af_cert_verified)? "yes":"no");
- if ((log_extra_selector & LX_tls_peerdn) != 0 && addr->peerdn != NULL)
- s = string_append(s, &size, &ptr, 3, US" DN=\"",
- string_printing(addr->peerdn), US"\"");
- #endif
+#ifdef SUPPORT_TLS
+ s = d_tlslog(s, &size, &ptr, addr);
+#endif
- if ((log_extra_selector & LX_smtp_confirmation) != 0 &&
- addr->message != NULL)
+ if (addr->authenticator)
{
- int i;
- uschar *p = big_buffer;
- uschar *ss = addr->message;
- *p++ = '\"';
- for (i = 0; i < 100 && ss[i] != 0; i++)
+ s = string_append(s, &size, &ptr, 2, US" A=", addr->authenticator);
+ if (addr->auth_id)
{
- if (ss[i] == '\"' || ss[i] == '\\') *p++ = '\\';
- *p++ = ss[i];
+ s = string_append(s, &size, &ptr, 2, US":", addr->auth_id);
+ if (log_extra_selector & LX_smtp_mailauth && addr->auth_sndr)
+ s = string_append(s, &size, &ptr, 2, US":", addr->auth_sndr);
}
- *p++ = '\"';
- *p = 0;
- s = string_append(s, &size, &ptr, 2, US" C=", big_buffer);
}
+
+#ifndef DISABLE_PRDR
+ if (addr->flags & af_prdr_used)
+ s = string_append(s, &size, &ptr, 1, US" PRDR");
+#endif
+ }
+
+/* confirmation message (SMTP (host_used) and LMTP (driver_name)) */
+
+if (log_extra_selector & LX_smtp_confirmation &&
+ addr->message &&
+ (addr->host_used || Ustrcmp(addr->transport->driver_name, "lmtp") == 0))
+ {
+ int i;
+ uschar *p = big_buffer;
+ uschar *ss = addr->message;
+ *p++ = '\"';
+ for (i = 0; i < 256 && ss[i] != 0; i++) /* limit logged amount */
+ {
+ if (ss[i] == '\"' || ss[i] == '\\') *p++ = '\\'; /* quote \ and " */
+ *p++ = ss[i];
+ }
+ *p++ = '\"';
+ *p = 0;
+ s = string_append(s, &size, &ptr, 2, US" C=", big_buffer);
}
/* Time on queue and actual time taken to deliver */
if ((log_extra_selector & LX_queue_time) != 0)
- {
s = string_append(s, &size, &ptr, 2, US" QT=",
- readconf_printtime(time(NULL) - received_time));
- }
+ readconf_printtime( (int) ((long)time(NULL) - (long)received_time)) );
if ((log_extra_selector & LX_deliver_time) != 0)
- {
s = string_append(s, &size, &ptr, 2, US" DT=",
readconf_printtime(addr->more_errno));
- }
/* string_cat() always leaves room for the terminator. Release the
store we used to build the line after writing it. */
s[ptr] = 0;
-log_write(0, LOG_MAIN, "%s", s);
+log_write(0, flags, "%s", s);
+
+#ifdef EXPERIMENTAL_EVENT
+if (!msg) msg_event_raise(US"msg:delivery", addr);
+#endif
+
store_reset(reset_point);
return;
}
uschar *s; /* building log lines; */
void *reset_point; /* released afterwards. */
-
DEBUG(D_deliver) debug_printf("post-process %s (%d)\n", addr->address, result);
/* Set up driver kind and name for logging. Disable logging if the router or
if (((Ustrstr(addr->message, "failed to expand") != NULL) || (Ustrstr(addr->message, "expansion of ") != NULL)) &&
(Ustrstr(addr->message, "mysql") != NULL ||
Ustrstr(addr->message, "pgsql") != NULL ||
+#ifdef EXPERIMENTAL_REDIS
+ Ustrstr(addr->message, "redis") != NULL ||
+#endif
Ustrstr(addr->message, "sqlite") != NULL ||
Ustrstr(addr->message, "ldap:") != NULL ||
Ustrstr(addr->message, "ldapdn:") != NULL ||
(void)close(addr->return_file);
}
-/* The sucess case happens only after delivery by a transport. */
+/* The success case happens only after delivery by a transport. */
if (result == OK)
{
DEBUG(D_deliver) debug_printf("%s delivered\n", addr->address);
if (addr->parent == NULL)
- {
deliver_msglog("%s %s: %s%s succeeded\n", now, addr->address,
driver_name, driver_kind);
- }
else
{
deliver_msglog("%s %s <%s>: %s%s succeeded\n", now, addr->address,
child_done(addr, now);
}
- delivery_log(addr, logchar);
+ /* Certificates for logging (via events) */
+#ifdef SUPPORT_TLS
+ tls_out.ourcert = addr->ourcert;
+ addr->ourcert = NULL;
+ tls_out.peercert = addr->peercert;
+ addr->peercert = NULL;
+
+ tls_out.cipher = addr->cipher;
+ tls_out.peerdn = addr->peerdn;
+ tls_out.ocsp = addr->ocsp;
+# ifdef EXPERIMENTAL_DANE
+ tls_out.dane_verified = testflag(addr, af_dane_verified);
+# endif
+#endif
+
+ delivery_log(LOG_MAIN, addr, logchar, NULL);
+
+#ifdef SUPPORT_TLS
+ if (tls_out.ourcert)
+ {
+ tls_free_cert(tls_out.ourcert);
+ tls_out.ourcert = NULL;
+ }
+ if (tls_out.peercert)
+ {
+ tls_free_cert(tls_out.peercert);
+ tls_out.peercert = NULL;
+ }
+ tls_out.cipher = NULL;
+ tls_out.peerdn = NULL;
+ tls_out.ocsp = OCSP_NOT_REQ;
+# ifdef EXPERIMENTAL_DANE
+ tls_out.dane_verified = FALSE;
+# endif
+#endif
}
s = string_append(s, &size, &ptr, 2, US": ",
US strerror(addr->basic_errno));
+ if (addr->host_used)
+ s = string_append(s, &size, &ptr, 5,
+ US" H=", addr->host_used->name,
+ US" [", addr->host_used->address, US"]");
+
if (addr->message != NULL)
s = string_append(s, &size, &ptr, 2, US": ", addr->message);
if (used_return_path != NULL &&
(log_extra_selector & LX_return_path_on_delivery) != 0)
- {
s = string_append(s, &size, &ptr, 3, US" P=<", used_return_path, US">");
- }
if (addr->router != NULL)
s = string_append(s, &size, &ptr, 2, US" R=", addr->router->name);
s = string_append(s, &size, &ptr, 2, US" T=", addr->transport->name);
if (addr->host_used != NULL)
- s = string_append(s, &size, &ptr, 5, US" H=", addr->host_used->name,
- US" [", addr->host_used->address, US"]");
+ s = d_hostlog(s, &size, &ptr, addr);
+
+#ifdef SUPPORT_TLS
+ s = d_tlslog(s, &size, &ptr, addr);
+#endif
if (addr->basic_errno > 0)
s = string_append(s, &size, &ptr, 2, US": ",
deliver_msglog("%s %s\n", now, s);
log_write(0, LOG_MAIN, "** %s", s);
+
+#ifdef EXPERIMENTAL_EVENT
+ msg_event_raise(US"msg:fail:delivery", addr);
+#endif
+
store_reset(reset_point);
}
diagnosis that it's reasonable to make them something that has to be explicitly requested.
*/
- #ifdef RLIMIT_CORE
+#ifdef RLIMIT_CORE
struct rlimit rl;
rl.rlim_cur = 0;
rl.rlim_max = 0;
if (setrlimit(RLIMIT_CORE, &rl) < 0)
{
- #ifdef SETRLIMIT_NOT_SUPPORTED
+# ifdef SETRLIMIT_NOT_SUPPORTED
if (errno != ENOSYS && errno != ENOTSUP)
- #endif
+# endif
log_write(0, LOG_MAIN|LOG_PANIC, "setrlimit(RLIMIT_CORE) failed: %s",
strerror(errno));
}
- #endif
+#endif
/* Reset the random number generator, so different processes don't all
have the same sequence. */
set_process_info("delivering %s to %s using %s", message_id,
addr->local_part, addr->transport->name);
+ /* Setting this global in the subprocess means we need never clear it */
+ transport_name = addr->transport->name;
+
/* If a transport filter has been specified, set up its argument list.
Any errors will get put into the address, and FALSE yielded. */
int i;
int local_part_length = Ustrlen(addr2->local_part);
uschar *s;
+ int ret;
- (void)write(pfd[pipe_write], (void *)&(addr2->transport_return), sizeof(int));
- (void)write(pfd[pipe_write], (void *)&transport_count, sizeof(transport_count));
- (void)write(pfd[pipe_write], (void *)&(addr2->flags), sizeof(addr2->flags));
- (void)write(pfd[pipe_write], (void *)&(addr2->basic_errno), sizeof(int));
- (void)write(pfd[pipe_write], (void *)&(addr2->more_errno), sizeof(int));
- (void)write(pfd[pipe_write], (void *)&(addr2->special_action), sizeof(int));
- (void)write(pfd[pipe_write], (void *)&(addr2->transport),
- sizeof(transport_instance *));
+ if( (ret = write(pfd[pipe_write], (void *)&(addr2->transport_return), sizeof(int))) != sizeof(int)
+ || (ret = write(pfd[pipe_write], (void *)&transport_count, sizeof(transport_count))) != sizeof(transport_count)
+ || (ret = write(pfd[pipe_write], (void *)&(addr2->flags), sizeof(addr2->flags))) != sizeof(addr2->flags)
+ || (ret = write(pfd[pipe_write], (void *)&(addr2->basic_errno), sizeof(int))) != sizeof(int)
+ || (ret = write(pfd[pipe_write], (void *)&(addr2->more_errno), sizeof(int))) != sizeof(int)
+ || (ret = write(pfd[pipe_write], (void *)&(addr2->special_action), sizeof(int))) != sizeof(int)
+ || (ret = write(pfd[pipe_write], (void *)&(addr2->transport),
+ sizeof(transport_instance *))) != sizeof(transport_instance *)
/* For a file delivery, pass back the local part, in case the original
was only part of the final delivery path. This gives more complete
logging. */
- if (testflag(addr2, af_file))
- {
- (void)write(pfd[pipe_write], (void *)&local_part_length, sizeof(int));
- (void)write(pfd[pipe_write], addr2->local_part, local_part_length);
- }
+ || (testflag(addr2, af_file)
+ && ( (ret = write(pfd[pipe_write], (void *)&local_part_length, sizeof(int))) != sizeof(int)
+ || (ret = write(pfd[pipe_write], addr2->local_part, local_part_length)) != local_part_length
+ )
+ )
+ )
+ log_write(0, LOG_MAIN|LOG_PANIC, "Failed writing transport results to pipe: %s\n",
+ ret == -1 ? strerror(errno) : "short write");
/* Now any messages */
for (i = 0, s = addr2->message; i < 2; i++, s = addr2->user_message)
{
int message_length = (s == NULL)? 0 : Ustrlen(s) + 1;
- (void)write(pfd[pipe_write], (void *)&message_length, sizeof(int));
- if (message_length > 0) (void)write(pfd[pipe_write], s, message_length);
+ if( (ret = write(pfd[pipe_write], (void *)&message_length, sizeof(int))) != sizeof(int)
+ || (message_length > 0 && (ret = write(pfd[pipe_write], s, message_length)) != message_length)
+ )
+ log_write(0, LOG_MAIN|LOG_PANIC, "Failed writing transport results to pipe: %s\n",
+ ret == -1 ? strerror(errno) : "short write");
}
}
to do, which is for the ultimate address timeout. */
if (!ok)
- {
- retry_config *retry =
- retry_find_config(retry_key+2, addr2->domain,
- retry_record->basic_errno,
- retry_record->more_errno);
-
- DEBUG(D_deliver|D_retry)
- {
- debug_printf("retry time not reached for %s: "
- "checking ultimate address timeout\n", addr2->address);
- debug_printf(" now=%d first_failed=%d next_try=%d expired=%d\n",
- (int)now, (int)retry_record->first_failed,
- (int)retry_record->next_try, retry_record->expired);
- }
-
- if (retry != NULL && retry->rules != NULL)
- {
- retry_rule *last_rule;
- for (last_rule = retry->rules;
- last_rule->next != NULL;
- last_rule = last_rule->next);
- DEBUG(D_deliver|D_retry)
- debug_printf(" received_time=%d diff=%d timeout=%d\n",
- received_time, (int)now - received_time, last_rule->timeout);
- if (now - received_time > last_rule->timeout) ok = TRUE;
- }
- else
- {
- DEBUG(D_deliver|D_retry)
- debug_printf("no retry rule found: assume timed out\n");
- ok = TRUE; /* No rule => timed out */
- }
-
- DEBUG(D_deliver|D_retry)
- {
- if (ok) debug_printf("on queue longer than maximum retry for "
- "address - allowing delivery\n");
- }
- }
+ ok = retry_ultimate_address_timeout(retry_key, addr2->domain,
+ retry_record, now);
}
}
else DEBUG(D_retry) debug_printf("no retry record exists\n");
uschar *msg = p->msg;
BOOL done = p->done;
BOOL unfinished = TRUE;
+/* minimum size to read is header size including id, subid and length */
+int required = PIPE_HEADER_SIZE;
/* Loop through all items, reading from the pipe when necessary. The pipe
is set up to be non-blocking, but there are two different Unix mechanisms in
{
retry_item *r, **rp;
int remaining = endptr - ptr;
+ uschar header[PIPE_HEADER_SIZE + 1];
+ uschar id, subid;
+ uschar *endc;
/* Read (first time) or top up the chars in the buffer if necessary.
There will be only one read if we get all the available data (i.e. don't
fill the buffer completely). */
- if (remaining < 2500 && unfinished)
+ if (remaining < required && unfinished)
{
int len;
int available = big_buffer_size - remaining;
won't read any more, as "unfinished" will get set FALSE. */
endptr += len;
+ remaining += len;
unfinished = len == available;
}
/* If we are at the end of the available data, exit the loop. */
-
if (ptr >= endptr) break;
+ /* copy and read header */
+ memcpy(header, ptr, PIPE_HEADER_SIZE);
+ header[PIPE_HEADER_SIZE] = '\0';
+ id = header[0];
+ subid = header[1];
+ required = Ustrtol(header + 2, &endc, 10) + PIPE_HEADER_SIZE; /* header + data */
+ if (*endc)
+ {
+ msg = string_sprintf("failed to read pipe from transport process "
+ "%d for transport %s: error reading size from header", pid, addr->transport->driver_name);
+ done = TRUE;
+ break;
+ }
+
+ DEBUG(D_deliver)
+ debug_printf("header read id:%c,subid:%c,size:%s,required:%d,remaining:%d,unfinished:%d\n",
+ id, subid, header+2, required, remaining, unfinished);
+
+ /* is there room for the dataset we want to read ? */
+ if (required > big_buffer_size - PIPE_HEADER_SIZE)
+ {
+ msg = string_sprintf("failed to read pipe from transport process "
+ "%d for transport %s: big_buffer too small! required size=%d buffer size=%d", pid, addr->transport->driver_name,
+ required, big_buffer_size - PIPE_HEADER_SIZE);
+ done = TRUE;
+ break;
+ }
+
+ /* we wrote all datasets with atomic write() calls
+ remaining < required only happens if big_buffer was too small
+ to get all available data from pipe. unfinished has to be true
+ as well. */
+ if (remaining < required)
+ {
+ if (unfinished)
+ continue;
+ msg = string_sprintf("failed to read pipe from transport process "
+ "%d for transport %s: required size=%d > remaining size=%d and unfinished=false",
+ pid, addr->transport->driver_name, required, remaining);
+ done = TRUE;
+ break;
+ }
+
+ /* step behind the header */
+ ptr += PIPE_HEADER_SIZE;
+
/* Handle each possible type of item, assuming the complete item is
available in store. */
- switch (*ptr++)
+ switch (id)
{
/* Host items exist only if any hosts were marked unusable. Match
up by checking the IP address. */
it in with the other info, in order to keep each message short enough to
guarantee it won't be split in the pipe. */
- #ifdef SUPPORT_TLS
+#ifdef SUPPORT_TLS
case 'X':
- if (addr == NULL) goto ADDR_MISMATCH; /* Below, in 'A' handler */
- addr->cipher = (*ptr)? string_copy(ptr) : NULL;
+ if (addr == NULL) goto ADDR_MISMATCH; /* Below, in 'A' handler */
+ switch (subid)
+ {
+ case '1':
+ addr->cipher = NULL;
+ addr->peerdn = NULL;
+
+ if (*ptr)
+ addr->cipher = string_copy(ptr);
+ while (*ptr++);
+ if (*ptr)
+ addr->peerdn = string_copy(ptr);
+ break;
+
+ case '2':
+ addr->peercert = NULL;
+ if (*ptr)
+ (void) tls_import_cert(ptr, &addr->peercert);
+ break;
+
+ case '3':
+ addr->ourcert = NULL;
+ if (*ptr)
+ (void) tls_import_cert(ptr, &addr->ourcert);
+ break;
+
+# ifndef DISABLE_OCSP
+ case '4':
+ addr->ocsp = OCSP_NOT_REQ;
+ if (*ptr)
+ addr->ocsp = *ptr - '0';
+ break;
+# endif
+ }
while (*ptr++);
- addr->peerdn = (*ptr)? string_copy(ptr) : NULL;
+ break;
+#endif /*SUPPORT_TLS*/
+
+ case 'C': /* client authenticator information */
+ switch (subid)
+ {
+ case '1':
+ addr->authenticator = (*ptr)? string_copy(ptr) : NULL;
+ break;
+ case '2':
+ addr->auth_id = (*ptr)? string_copy(ptr) : NULL;
+ break;
+ case '3':
+ addr->auth_sndr = (*ptr)? string_copy(ptr) : NULL;
+ break;
+ }
while (*ptr++);
break;
- #endif
+
+#ifndef DISABLE_PRDR
+ case 'P':
+ addr->flags |= af_prdr_used;
+ break;
+#endif
+
+#ifdef EXPERIMENTAL_DSN
+ case 'D':
+ if (addr == NULL) goto ADDR_MISMATCH;
+ memcpy(&(addr->dsn_aware), ptr, sizeof(addr->dsn_aware));
+ ptr += sizeof(addr->dsn_aware);
+ DEBUG(D_deliver) debug_printf("DSN read: addr->dsn_aware = %d\n", addr->dsn_aware);
+ break;
+#endif
case 'A':
if (addr == NULL)
addr->user_message = (*ptr)? string_copy(ptr) : NULL;
while(*ptr++);
- /* Always two strings for host information, followed by the port number */
+ /* Always two strings for host information, followed by the port number and DNSSEC mark */
if (*ptr != 0)
{
while(*ptr++);
memcpy(&(h->port), ptr, sizeof(h->port));
ptr += sizeof(h->port);
+ h->dnssec = *ptr == '2' ? DS_YES
+ : *ptr == '1' ? DS_NO
+ : DS_UNK;
+ ptr++;
addr->host_used = h;
}
else ptr++;
continue_hostname = NULL;
}
done = TRUE;
- DEBUG(D_deliver) debug_printf("Z%c item read\n", *ptr);
+ DEBUG(D_deliver) debug_printf("Z0%c item read\n", *ptr);
break;
/* Anything else is a disaster. */
+static void
+rmt_dlv_checked_write(int fd, char id, char subid, void * buf, int size)
+{
+uschar writebuffer[PIPE_HEADER_SIZE + BIG_BUFFER_SIZE];
+int header_length;
+
+/* we assume that size can't get larger then BIG_BUFFER_SIZE which currently is set to 16k */
+/* complain to log if someone tries with buffer sizes we can't handle*/
+
+if (size > 99999)
+{
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE,
+ "Failed writing transport result to pipe: can't handle buffers > 99999 bytes. truncating!\n");
+ size = 99999;
+}
+
+/* to keep the write() atomic we build header in writebuffer and copy buf behind */
+/* two write() calls would increase the complexity of reading from pipe */
+
+/* convert size to human readable string prepended by id and subid */
+header_length = snprintf(CS writebuffer, PIPE_HEADER_SIZE+1, "%c%c%05d", id, subid, size);
+if (header_length != PIPE_HEADER_SIZE)
+{
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE, "header snprintf failed\n");
+ writebuffer[0] = '\0';
+}
+
+DEBUG(D_deliver) debug_printf("header write id:%c,subid:%c,size:%d,final:%s\n",
+ id, subid, size, writebuffer);
+
+if (buf && size > 0)
+ memcpy(writebuffer + PIPE_HEADER_SIZE, buf, size);
+
+size += PIPE_HEADER_SIZE;
+int ret = write(fd, writebuffer, size);
+if(ret != size)
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Failed writing transport result to pipe: %s\n",
+ ret == -1 ? strerror(errno) : "short write");
+}
+
/*************************************************
* Do remote deliveries *
*************************************************/
}
/* Get the flag which specifies whether the transport can handle different
- domains that nevertheless resolve to the same set of hosts. */
-
- multi_domain = tp->multi_domain;
+ domains that nevertheless resolve to the same set of hosts. If it needs
+ expanding, get variables set: $address_data, $domain_data, $localpart_data,
+ $host, $host_address, $host_port. */
+ if (tp->expand_multi_domain)
+ deliver_set_expansions(addr);
+
+ if (exp_bool(addr, US"transport", tp->name, D_transport,
+ US"multi_domain", tp->multi_domain, tp->expand_multi_domain,
+ &multi_domain) != OK)
+ {
+ deliver_set_expansions(NULL);
+ remote_post_process(addr, LOG_MAIN|LOG_PANIC, addr->message, fallback);
+ continue;
+ }
/* Get the maximum it can handle in one envelope, with zero meaning
unlimited, which is forced for the MUA wrapper case. */
entirely different domains. The host list pointers can be NULL in the case
where the hosts are defined in the transport. There is also a configured
maximum limit of addresses that can be handled at once (see comments above
- for how it is computed). */
+ for how it is computed).
+ If the transport does not handle multiple domains, enforce that also,
+ and if it might need a per-address check for this, re-evaluate it.
+ */
while ((next = *anchor) != NULL && address_count < address_count_max)
{
- if ((multi_domain || Ustrcmp(next->domain, addr->domain) == 0)
- &&
- tp == next->transport
- &&
- same_hosts(next->host_list, addr->host_list)
- &&
- same_strings(next->p.errors_address, addr->p.errors_address)
- &&
- same_headers(next->p.extra_headers, addr->p.extra_headers)
- &&
- same_ugid(tp, next, addr)
- &&
- (next->p.remove_headers == addr->p.remove_headers ||
- (next->p.remove_headers != NULL &&
- addr->p.remove_headers != NULL &&
- Ustrcmp(next->p.remove_headers, addr->p.remove_headers) == 0)))
+ BOOL md;
+ if ( (multi_domain || Ustrcmp(next->domain, addr->domain) == 0)
+ && tp == next->transport
+ && same_hosts(next->host_list, addr->host_list)
+ && same_strings(next->p.errors_address, addr->p.errors_address)
+ && same_headers(next->p.extra_headers, addr->p.extra_headers)
+ && same_ugid(tp, next, addr)
+ && ( next->p.remove_headers == addr->p.remove_headers
+ || ( next->p.remove_headers != NULL
+ && addr->p.remove_headers != NULL
+ && Ustrcmp(next->p.remove_headers, addr->p.remove_headers) == 0
+ ) )
+ && ( !multi_domain
+ || ( (
+ !tp->expand_multi_domain || (deliver_set_expansions(next), 1),
+ exp_bool(addr,
+ US"transport", next->transport->name, D_transport,
+ US"multi_domain", next->transport->multi_domain,
+ next->transport->expand_multi_domain, &md) == OK
+ )
+ && md
+ ) ) )
{
*anchor = next->next;
next->next = NULL;
address_count++;
}
else anchor = &(next->next);
+ deliver_set_expansions(NULL);
}
/* If we are acting as an MUA wrapper, all addresses must go in a single
deliver_set_expansions(addr);
+ /* Ensure any transport-set auth info is fresh */
+ addr->authenticator = addr->auth_id = addr->auth_sndr = NULL;
+
/* Compute the return path, expanding a new one if required. The old one
must be set first, as it might be referred to in the expansion. */
that it can use either of them, though it prefers O_NONBLOCK, which
distinguishes between EOF and no-more-data. */
- #ifdef O_NONBLOCK
+#ifdef O_NONBLOCK
(void)fcntl(pfd[pipe_read], F_SETFL, O_NONBLOCK);
- #else
+#else
(void)fcntl(pfd[pipe_read], F_SETFL, O_NDELAY);
- #endif
+#endif
/* If the maximum number of subprocesses already exist, wait for a process
to finish. If we ran out of file descriptors, parmax will have been reduced
int fd = pfd[pipe_write];
host_item *h;
- /* There are weird circumstances in which logging is disabled */
+ /* Setting this global in the subprocess means we need never clear it */
+ transport_name = tp->name;
+ /* There are weird circumstances in which logging is disabled */
disable_logging = tp->disable_logging;
/* Show pids on debug output if parallelism possible */
for (h = addr->host_list; h != NULL; h = h->next)
{
if (h->address == NULL || h->status < hstatus_unusable) continue;
- sprintf(CS big_buffer, "H%c%c%s", h->status, h->why, h->address);
- (void)write(fd, big_buffer, Ustrlen(big_buffer+3) + 4);
+ sprintf(CS big_buffer, "%c%c%s", h->status, h->why, h->address);
+ rmt_dlv_checked_write(fd, 'H', '0', big_buffer, Ustrlen(big_buffer+2) + 3);
}
/* The number of bytes written. This is the same for each address. Even
size of each one is the same, and it's that value we have got because
transport_count gets reset before calling transport_write_message(). */
- big_buffer[0] = 'S';
- memcpy(big_buffer+1, &transport_count, sizeof(transport_count));
- (void)write(fd, big_buffer, sizeof(transport_count) + 1);
+ memcpy(big_buffer, &transport_count, sizeof(transport_count));
+ rmt_dlv_checked_write(fd, 'S', '0', big_buffer, sizeof(transport_count));
- /* Information about what happened to each address. Three item types are
- used: an optional 'X' item first, for TLS information, followed by 'R'
- items for any retry settings, and finally an 'A' item for the remaining
- data. */
+ /* Information about what happened to each address. Four item types are
+ used: an optional 'X' item first, for TLS information, then an optional "C"
+ item for any client-auth info followed by 'R' items for any retry settings,
+ and finally an 'A' item for the remaining data. */
for(; addr != NULL; addr = addr->next)
{
retry_item *r;
/* The certificate verification status goes into the flags */
-
- if (tls_certificate_verified) setflag(addr, af_cert_verified);
+ if (tls_out.certificate_verified) setflag(addr, af_cert_verified);
+#ifdef EXPERIMENTAL_DANE
+ if (tls_out.dane_verified) setflag(addr, af_dane_verified);
+#endif
/* Use an X item only if there's something to send */
-
- #ifdef SUPPORT_TLS
- if (addr->cipher != NULL)
+#ifdef SUPPORT_TLS
+ if (addr->cipher)
{
ptr = big_buffer;
- *ptr++ = 'X';
sprintf(CS ptr, "%.128s", addr->cipher);
while(*ptr++);
- if (addr->peerdn == NULL) *ptr++ = 0; else
+ if (!addr->peerdn)
+ *ptr++ = 0;
+ else
{
sprintf(CS ptr, "%.512s", addr->peerdn);
while(*ptr++);
}
- (void)write(fd, big_buffer, ptr - big_buffer);
+
+ rmt_dlv_checked_write(fd, 'X', '1', big_buffer, ptr - big_buffer);
}
- #endif
+ if (addr->peercert)
+ {
+ ptr = big_buffer;
+ if (!tls_export_cert(ptr, big_buffer_size-2, addr->peercert))
+ while(*ptr++);
+ else
+ *ptr++ = 0;
+ rmt_dlv_checked_write(fd, 'X', '2', big_buffer, ptr - big_buffer);
+ }
+ if (addr->ourcert)
+ {
+ ptr = big_buffer;
+ if (!tls_export_cert(ptr, big_buffer_size-2, addr->ourcert))
+ while(*ptr++);
+ else
+ *ptr++ = 0;
+ rmt_dlv_checked_write(fd, 'X', '3', big_buffer, ptr - big_buffer);
+ }
+# ifndef DISABLE_OCSP
+ if (addr->ocsp > OCSP_NOT_REQ)
+ {
+ ptr = big_buffer;
+ sprintf(CS ptr, "%c", addr->ocsp + '0');
+ while(*ptr++);
+ rmt_dlv_checked_write(fd, 'X', '4', big_buffer, ptr - big_buffer);
+ }
+# endif
+#endif /*SUPPORT_TLS*/
+
+ if (client_authenticator)
+ {
+ ptr = big_buffer;
+ sprintf(CS big_buffer, "%.64s", client_authenticator);
+ while(*ptr++);
+ rmt_dlv_checked_write(fd, 'C', '1', big_buffer, ptr - big_buffer);
+ }
+ if (client_authenticated_id)
+ {
+ ptr = big_buffer;
+ sprintf(CS big_buffer, "%.64s", client_authenticated_id);
+ while(*ptr++);
+ rmt_dlv_checked_write(fd, 'C', '2', big_buffer, ptr - big_buffer);
+ }
+ if (client_authenticated_sender)
+ {
+ ptr = big_buffer;
+ sprintf(CS big_buffer, "%.64s", client_authenticated_sender);
+ while(*ptr++);
+ rmt_dlv_checked_write(fd, 'C', '3', big_buffer, ptr - big_buffer);
+ }
+
+#ifndef DISABLE_PRDR
+ if (addr->flags & af_prdr_used)
+ rmt_dlv_checked_write(fd, 'P', '0', NULL, 0);
+#endif
+
+#ifdef EXPERIMENTAL_DSN
+ memcpy(big_buffer, &addr->dsn_aware, sizeof(addr->dsn_aware));
+ rmt_dlv_checked_write(fd, 'D', '0', big_buffer, sizeof(addr->dsn_aware));
+ DEBUG(D_deliver) debug_printf("DSN write: addr->dsn_aware = %d\n", addr->dsn_aware);
+#endif
/* Retry information: for most success cases this will be null. */
for (r = addr->retries; r != NULL; r = r->next)
{
uschar *ptr;
- sprintf(CS big_buffer, "R%c%.500s", r->flags, r->key);
+ sprintf(CS big_buffer, "%c%.500s", r->flags, r->key);
ptr = big_buffer + Ustrlen(big_buffer+2) + 3;
memcpy(ptr, &(r->basic_errno), sizeof(r->basic_errno));
ptr += sizeof(r->basic_errno);
sprintf(CS ptr, "%.512s", r->message);
while(*ptr++);
}
- (void)write(fd, big_buffer, ptr - big_buffer);
+ rmt_dlv_checked_write(fd, 'R', '0', big_buffer, ptr - big_buffer);
}
/* The rest of the information goes in an 'A' item. */
- ptr = big_buffer + 3;
- sprintf(CS big_buffer, "A%c%c", addr->transport_return,
+ ptr = big_buffer + 2;
+ sprintf(CS big_buffer, "%c%c", addr->transport_return,
addr->special_action);
memcpy(ptr, &(addr->basic_errno), sizeof(addr->basic_errno));
ptr += sizeof(addr->basic_errno);
while(*ptr++);
memcpy(ptr, &(addr->host_used->port), sizeof(addr->host_used->port));
ptr += sizeof(addr->host_used->port);
+
+ /* DNS lookup status */
+ *ptr++ = addr->host_used->dnssec==DS_YES ? '2'
+ : addr->host_used->dnssec==DS_NO ? '1' : '0';
+
}
- (void)write(fd, big_buffer, ptr - big_buffer);
+ rmt_dlv_checked_write(fd, 'A', '0', big_buffer, ptr - big_buffer);
}
/* Add termination flag, close the pipe, and that's it. The character
A change from non-NULL to NULL indicates a problem with a continuing
connection. */
- big_buffer[0] = 'Z';
- big_buffer[1] = (continue_transport == NULL)? '0' : '1';
- (void)write(fd, big_buffer, 2);
+ big_buffer[0] = (continue_transport == NULL)? '0' : '1';
+ rmt_dlv_checked_write(fd, 'Z', '0', big_buffer, 1);
(void)close(fd);
exit(EXIT_SUCCESS);
}
string_printing(original));
}
+if (addr->host_used)
+ fprintf(f, "\n host %s [%s]",
+ addr->host_used->name, addr->host_used->address);
+
fprintf(f, "%s", CS se);
return yield;
}
int process_recipients = RECIP_ACCEPT;
open_db dbblock;
open_db *dbm_file;
+extern int acl_where;
uschar *info = (queue_run_pid == (pid_t)0)?
string_sprintf("delivering %s", id) :
update_spool = FALSE;
remove_journal = TRUE;
+/* Set a known context for any ACLs we call via expansions */
+acl_where = ACL_WHERE_DELIVERY;
+
/* Reset the random number generator, so that if several delivery processes are
started from a queue runner that has already used random numbers (for sorting),
they don't all get the same sequence. */
if (deliver_freeze)
{
- #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
+#ifdef SUPPORT_MOVE_FROZEN_MESSAGES
/* Moving to another directory removes the message from Exim's view. Other
tools must be used to deal with it. Logging of this action happens in
spool_move_message() and its subfunctions. */
if (move_frozen_messages &&
spool_move_message(id, message_subdir, US"", US"F"))
return continue_closedown(); /* yields DELIVER_NOT_ATTEMPTED */
- #endif
+#endif
/* For all frozen messages (bounces or not), timeout_frozen_after sets the
maximum time to keep messages that are frozen. Thaw if we reach it, with a
if (r->pno >= 0)
new->onetime_parent = recipients_list[r->pno].address;
+#ifdef EXPERIMENTAL_DSN
+ /* If DSN support is enabled, set the dsn flags and the original receipt
+ to be passed on to other DSN enabled MTAs */
+ new->dsn_flags = r->dsn_flags & rf_dsnflags;
+ new->dsn_orcpt = r->orcpt;
+ DEBUG(D_deliver) debug_printf("DSN: set orcpt: %s flags: %d\n", new->dsn_orcpt, new->dsn_flags);
+#endif
+
switch (process_recipients)
{
/* RECIP_DEFER is set when a system filter freezes a message. */
addr_last = new;
break;
}
+
+#ifdef EXPERIMENTAL_EVENT
+ if (process_recipients != RECIP_ACCEPT)
+ {
+ uschar * save_local = deliver_localpart;
+ uschar * save_domain = deliver_domain;
+
+ deliver_localpart = expand_string(
+ string_sprintf("${local_part:%s}", new->address));
+ deliver_domain = expand_string(
+ string_sprintf("${domain:%s}", new->address));
+
+ (void) event_raise(event_action,
+ US"msg:fail:internal", new->message);
+
+ deliver_localpart = save_local;
+ deliver_domain = save_domain;
+ }
+#endif
}
}
}
will be far too many attempts for an address that gets a 4xx error. In
fact, after such an error, we should not get here because, the host should
not be remembered as one this message needs. However, there was a bug that
- used to cause this to happen, so it is best to be on the safe side. */
+ used to cause this to happen, so it is best to be on the safe side.
+
+ Even if we haven't reached the retry time in the hints, there is one more
+ check to do, which is for the ultimate address timeout. We only do this
+ check if there is an address retry record and there is not a domain retry
+ record; this implies that previous attempts to handle the address had the
+ retry_use_local_parts option turned on. We use this as an approximation
+ for the destination being like a local delivery, for example delivery over
+ LMTP to an IMAP message store. In this situation users are liable to bump
+ into their quota and thereby have intermittently successful deliveries,
+ which keep the retry record fresh, which can lead to us perpetually
+ deferring messages. */
else if (((queue_running && !deliver_force) || continue_hostname != NULL)
&&
||
(address_retry_record != NULL &&
now < address_retry_record->next_try))
- )
+ &&
+ (domain_retry_record != NULL ||
+ address_retry_record == NULL ||
+ !retry_ultimate_address_timeout(addr->address_retry_key,
+ addr->domain, address_retry_record, now)))
{
addr->message = US"retry time not reached";
addr->basic_errno = ERRNO_RRETRY;
that the mode is correct - the group setting doesn't always seem to get
set automatically. */
- (void)fcntl(journal_fd, F_SETFD, fcntl(journal_fd, F_GETFD) | FD_CLOEXEC);
- (void)fchown(journal_fd, exim_uid, exim_gid);
- (void)fchmod(journal_fd, SPOOL_MODE);
+ if( fcntl(journal_fd, F_SETFD, fcntl(journal_fd, F_GETFD) | FD_CLOEXEC)
+ || fchown(journal_fd, exim_uid, exim_gid)
+ || fchmod(journal_fd, SPOOL_MODE)
+ )
+ {
+ int ret = Uunlink(spoolname);
+ log_write(0, LOG_MAIN|LOG_PANIC, "Couldn't set perms on journal file %s: %s",
+ spoolname, strerror(errno));
+ if(ret && errno != ENOENT)
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to unlink %s: %s",
+ spoolname, strerror(errno));
+ return DELIVER_NOT_ATTEMPTED;
+ }
}
+
/* Now we can get down to the business of actually doing deliveries. Local
deliveries are done first, then remote ones. If ever the problems of how to
handle fallback transports are figured out, this section can be put into a loop
regex_must_compile(US"\\n250[\\s\\-]AUTH\\s+([\\-\\w\\s]+)(?:\\n|$)",
FALSE, TRUE);
- #ifdef SUPPORT_TLS
+#ifdef SUPPORT_TLS
if (regex_STARTTLS == NULL) regex_STARTTLS =
regex_must_compile(US"\\n250[\\s\\-]STARTTLS(\\s|\\n|$)", FALSE, TRUE);
- #endif
+#endif
+
+#ifndef DISABLE_PRDR
+ if (regex_PRDR == NULL) regex_PRDR =
+ regex_must_compile(US"\\n250[\\s\\-]PRDR(\\s|\\n|$)", FALSE, TRUE);
+#endif
+
+#ifdef EXPERIMENTAL_DSN
+ /* Set the regex to check for DSN support on remote MTA */
+ if (regex_DSN == NULL) regex_DSN =
+ regex_must_compile(US"\\n250[\\s\\-]DSN(\\s|\\n|$)", FALSE, TRUE);
+#endif
/* Now sort the addresses if required, and do the deliveries. The yield of
do_remote_deliveries is FALSE when mua_wrapper is set and all addresses
{
uschar *s = (addr_failed->user_message != NULL)?
addr_failed->user_message : addr_failed->message;
+ host_item * host;
fprintf(stderr, "Delivery failed: ");
if (addr_failed->basic_errno > 0)
fprintf(stderr, "%s", strerror(addr_failed->basic_errno));
if (s != NULL) fprintf(stderr, ": ");
}
+ if ((host = addr_failed->host_used))
+ fprintf(stderr, "H=%s [%s]: ", host->name, host->address);
if (s == NULL)
{
if (addr_failed->basic_errno <= 0) fprintf(stderr, "unknown error");
else if (!dont_deliver) retry_update(&addr_defer, &addr_failed, &addr_succeed);
+#ifdef EXPERIMENTAL_DSN
+/* Send DSN for successful messages */
+addr_dsntmp = addr_succeed;
+addr_senddsn = NULL;
+
+while(addr_dsntmp != NULL)
+ {
+ DEBUG(D_deliver)
+ debug_printf("DSN: processing router : %s\n", addr_dsntmp->router->name);
+
+ DEBUG(D_deliver)
+ debug_printf("DSN: processing successful delivery address: %s\n", addr_dsntmp->address);
+
+ /* af_ignore_error not honored here. it's not an error */
+
+ DEBUG(D_deliver) debug_printf("DSN: Sender_address: %s\n", sender_address);
+ DEBUG(D_deliver) debug_printf("DSN: orcpt: %s flags: %d\n", addr_dsntmp->dsn_orcpt, addr_dsntmp->dsn_flags);
+ DEBUG(D_deliver) debug_printf("DSN: envid: %s ret: %d\n", dsn_envid, dsn_ret);
+ DEBUG(D_deliver) debug_printf("DSN: Final recipient: %s\n", addr_dsntmp->address);
+ DEBUG(D_deliver) debug_printf("DSN: Remote SMTP server supports DSN: %d\n", addr_dsntmp->dsn_aware);
+
+ /* send report if next hop not DSN aware or a router flagged "last DSN hop"
+ and a report was requested */
+ if (((addr_dsntmp->dsn_aware != dsn_support_yes) ||
+ ((addr_dsntmp->dsn_flags & rf_dsnlasthop) != 0))
+ &&
+ (((addr_dsntmp->dsn_flags & rf_dsnflags) != 0) &&
+ ((addr_dsntmp->dsn_flags & rf_notify_success) != 0)))
+ {
+ /* copy and relink address_item and send report with all of them at once later */
+ address_item *addr_next;
+ addr_next = addr_senddsn;
+ addr_senddsn = store_get(sizeof(address_item));
+ memcpy(addr_senddsn, addr_dsntmp, sizeof(address_item));
+ addr_senddsn->next = addr_next;
+ }
+ else
+ {
+ DEBUG(D_deliver) debug_printf("DSN: *** NOT SENDING DSN SUCCESS Message ***\n");
+ }
+
+ addr_dsntmp = addr_dsntmp->next;
+ }
+
+if (addr_senddsn != NULL)
+ {
+ pid_t pid;
+ int fd;
+
+ /* create exim process to send message */
+ pid = child_open_exim(&fd);
+
+ DEBUG(D_deliver) debug_printf("DSN: child_open_exim returns: %d\n", pid);
+
+ if (pid < 0) /* Creation of child failed */
+ {
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE, "Process %d (parent %d) failed to "
+ "create child process to send failure message: %s", getpid(),
+ getppid(), strerror(errno));
+
+ DEBUG(D_deliver) debug_printf("DSN: child_open_exim failed\n");
+
+ }
+ else /* Creation of child succeeded */
+ {
+ FILE *f = fdopen(fd, "wb");
+ /* header only as required by RFC. only failure DSN needs to honor RET=FULL */
+ int topt = topt_add_return_path | topt_no_body;
+ uschar * bound;
+
+ DEBUG(D_deliver) debug_printf("sending error message to: %s\n", sender_address);
+
+ /* build unique id for MIME boundary */
+ bound = string_sprintf(TIME_T_FMT "-eximdsn-%d", time(NULL), rand());
+ DEBUG(D_deliver) debug_printf("DSN: MIME boundary: %s\n", bound);
+
+ if (errors_reply_to)
+ fprintf(f, "Reply-To: %s\n", errors_reply_to);
+
+ fprintf(f, "Auto-Submitted: auto-generated\n"
+ "From: Mail Delivery System <Mailer-Daemon@%s>\n"
+ "To: %s\n"
+ "Subject: Delivery Status Notification\n"
+ "Content-Type: multipart/report; report-type=delivery-status; boundary=%s\n"
+ "MIME-Version: 1.0\n\n"
+
+ "--%s\n"
+ "Content-type: text/plain; charset=us-ascii\n\n"
+
+ "This message was created automatically by mail delivery software.\n"
+ " ----- The following addresses had successful delivery notifications -----\n",
+ qualify_domain_sender, sender_address, bound, bound);
+
+ addr_dsntmp = addr_senddsn;
+ while(addr_dsntmp)
+ {
+ fprintf(f, "<%s> (relayed %s)\n\n",
+ addr_dsntmp->address,
+ (addr_dsntmp->dsn_flags & rf_dsnlasthop) == 1
+ ? "via non DSN router"
+ : addr_dsntmp->dsn_aware == dsn_support_no
+ ? "to non-DSN-aware mailer"
+ : "via non \"Remote SMTP\" router"
+ );
+ addr_dsntmp = addr_dsntmp->next;
+ }
+ fprintf(f, "--%s\n"
+ "Content-type: message/delivery-status\n\n"
+ "Reporting-MTA: dns; %s\n",
+ bound, smtp_active_hostname);
+
+ if (dsn_envid != NULL) {
+ /* must be decoded from xtext: see RFC 3461:6.3a */
+ uschar *xdec_envid;
+ if (auth_xtextdecode(dsn_envid, &xdec_envid) > 0)
+ fprintf(f, "Original-Envelope-ID: %s\n", dsn_envid);
+ else
+ fprintf(f, "X-Original-Envelope-ID: error decoding xtext formated ENVID\n");
+ }
+ fputc('\n', f);
+
+ for (addr_dsntmp = addr_senddsn;
+ addr_dsntmp;
+ addr_dsntmp = addr_dsntmp->next)
+ {
+ if (addr_dsntmp->dsn_orcpt)
+ fprintf(f,"Original-Recipient: %s\n", addr_dsntmp->dsn_orcpt);
+
+ fprintf(f, "Action: delivered\n"
+ "Final-Recipient: rfc822;%s\n"
+ "Status: 2.0.0\n",
+ addr_dsntmp->address);
+
+ if (addr_dsntmp->host_used && addr_dsntmp->host_used->name)
+ fprintf(f, "Remote-MTA: dns; %s\nDiagnostic-Code: smtp; 250 Ok\n",
+ addr_dsntmp->host_used->name);
+ else
+ fprintf(f,"Diagnostic-Code: X-Exim; relayed via non %s router\n",
+ (addr_dsntmp->dsn_flags & rf_dsnlasthop) == 1 ? "DSN" : "SMTP");
+ fputc('\n', f);
+ }
+
+ fprintf(f, "--%s\nContent-type: text/rfc822-headers\n\n", bound);
+
+ fflush(f);
+ transport_filter_argv = NULL; /* Just in case */
+ return_path = sender_address; /* In case not previously set */
+
+ /* Write the original email out */
+ transport_write_message(NULL, fileno(f), topt, 0, NULL, NULL, NULL, NULL, NULL, 0);
+ fflush(f);
+
+ fprintf(f,"\n");
+ fprintf(f,"--%s--\n", bound);
+
+ fflush(f);
+ fclose(f);
+ rc = child_close(pid, 0); /* Waits for child to close, no timeout */
+ }
+ }
+#endif /*EXPERIMENTAL_DSN*/
+
/* If any addresses failed, we must send a message to somebody, unless
af_ignore_error is set, in which case no action is taken. It is possible for
several messages to get sent if there are addresses with different
it from the list, throw away any saved message file, log it, and
mark the recipient done. */
- if (testflag(addr_failed, af_ignore_error))
- {
+ if (testflag(addr_failed, af_ignore_error)
+#ifdef EXPERIMENTAL_DSN
+ || (((addr_failed->dsn_flags & rf_dsnflags) != 0)
+ && ((addr_failed->dsn_flags & rf_notify_failure) != rf_notify_failure))
+#endif
+ )
+ {
addr = addr_failed;
addr_failed = addr->next;
if (addr->return_filename != NULL) Uunlink(addr->return_filename);
BOOL to_sender = strcmpic(sender_address, bounce_recipient) == 0;
int max = (bounce_return_size_limit/DELIVER_IN_BUFFER_SIZE + 1) *
DELIVER_IN_BUFFER_SIZE;
+#ifdef EXPERIMENTAL_DSN
+ uschar * bound;
+ uschar *dsnlimitmsg;
+ uschar *dsnnotifyhdr;
+ int topt;
+#endif
DEBUG(D_deliver)
debug_printf("sending error message to: %s\n", bounce_recipient);
moan_write_from(f);
fprintf(f, "To: %s\n", bounce_recipient);
+#ifdef EXPERIMENTAL_DSN
+ /* generate boundary string and output MIME-Headers */
+ bound = string_sprintf(TIME_T_FMT "-eximdsn-%d", time(NULL), rand());
+
+ fprintf(f, "Content-Type: multipart/report;"
+ " report-type=delivery-status; boundary=%s\n"
+ "MIME-Version: 1.0\n",
+ bound);
+#endif
+
/* Open a template file if one is provided. Log failure to open, but
carry on - default texts will be used. */
- if (bounce_message_file != NULL)
- {
- emf = Ufopen(bounce_message_file, "rb");
- if (emf == NULL)
+ if (bounce_message_file)
+ if (!(emf = Ufopen(bounce_message_file, "rb")))
log_write(0, LOG_MAIN|LOG_PANIC, "Failed to open %s for error "
"message texts: %s", bounce_message_file, strerror(errno));
- }
/* Quietly copy to configured additional addresses if required. */
- bcc = moan_check_errorcopy(bounce_recipient);
- if (bcc != NULL) fprintf(f, "Bcc: %s\n", bcc);
+ if ((bcc = moan_check_errorcopy(bounce_recipient)))
+ fprintf(f, "Bcc: %s\n", bcc);
/* The texts for the message can be read from a template file; if there
isn't one, or if it is too short, built-in texts are used. The first
emf text is a Subject: and any other headers. */
- emf_text = next_emf(emf, US"header");
- if (emf_text != NULL) fprintf(f, "%s\n", emf_text); else
- {
+ if ((emf_text = next_emf(emf, US"header")))
+ fprintf(f, "%s\n", emf_text);
+ else
fprintf(f, "Subject: Mail delivery failed%s\n\n",
to_sender? ": returning message to sender" : "");
- }
- emf_text = next_emf(emf, US"intro");
- if (emf_text != NULL) fprintf(f, "%s", CS emf_text); else
+#ifdef EXPERIMENTAL_DSN
+ /* output human readable part as text/plain section */
+ fprintf(f, "--%s\n"
+ "Content-type: text/plain; charset=us-ascii\n\n",
+ bound);
+#endif
+
+ if ((emf_text = next_emf(emf, US"intro")))
+ fprintf(f, "%s", CS emf_text);
+ else
{
fprintf(f,
/* This message has been reworded several times. It seems to be confusing to
somebody, however it is worded. I have retreated to the original, simple
wording. */
"This message was created automatically by mail delivery software.\n");
- if (bounce_message_text != NULL) fprintf(f, "%s", CS bounce_message_text);
+
+ if (bounce_message_text)
+ fprintf(f, "%s", CS bounce_message_text);
if (to_sender)
- {
fprintf(f,
"\nA message that you sent could not be delivered to one or more of its\n"
"recipients. This is a permanent error. The following address(es) failed:\n");
- }
else
- {
fprintf(f,
"\nA message sent by\n\n <%s>\n\n"
"could not be delivered to one or more of its recipients. The following\n"
"address(es) failed:\n", sender_address);
- }
}
- fprintf(f, "\n");
+ fputc('\n', f);
/* Process the addresses, leaving them on the msgchain if they have a
file name for a return message. (There has already been a check in
}
}
- fprintf(f, "\n");
+ fputc('\n', f);
/* Get the next text, whether we need it or not, so as to be
positioned for the one after. */
fd, and the return_filename field in the *last* one will be set (to the
name of the file). */
- if (msgchain != NULL)
+ if (msgchain)
{
address_item *nextaddr;
- if (emf_text != NULL) fprintf(f, "%s", CS emf_text); else
+ if (emf_text)
+ fprintf(f, "%s", CS emf_text);
+ else
fprintf(f,
"The following text was generated during the delivery "
"attempt%s:\n", (filecount > 1)? "s" : "");
/* List all the addresses that relate to this file */
- fprintf(f, "\n");
- while(addr != NULL) /* Insurance */
+ fputc('\n', f);
+ while(addr) /* Insurance */
{
print_address_information(addr, f, US"------ ", US"\n ",
US" ------\n");
- if (addr->return_filename != NULL) break;
+ if (addr->return_filename) break;
addr = addr->next;
}
- fprintf(f, "\n");
+ fputc('\n', f);
/* Now copy the file */
addr->next = handled_addr;
handled_addr = topaddr;
}
- fprintf(f, "\n");
+ fputc('\n', f);
}
+#ifdef EXPERIMENTAL_DSN
+ /* output machine readable part */
+ fprintf(f, "--%s\n"
+ "Content-type: message/delivery-status\n\n"
+ "Reporting-MTA: dns; %s\n",
+ bound, smtp_active_hostname);
+
+ if (dsn_envid)
+ {
+ /* must be decoded from xtext: see RFC 3461:6.3a */
+ uschar *xdec_envid;
+ if (auth_xtextdecode(dsn_envid, &xdec_envid) > 0)
+ fprintf(f, "Original-Envelope-ID: %s\n", dsn_envid);
+ else
+ fprintf(f, "X-Original-Envelope-ID: error decoding xtext formated ENVID\n");
+ }
+ fputc('\n', f);
+
+ for (addr = handled_addr; addr; addr = addr->next)
+ {
+ fprintf(f, "Action: failed\n"
+ "Final-Recipient: rfc822;%s\n"
+ "Status: 5.0.0\n",
+ addr->address);
+ if (addr->host_used && addr->host_used->name)
+ fprintf(f, "Remote-MTA: dns; %s\nDiagnostic-Code: smtp; %d\n",
+ addr->host_used->name, addr->basic_errno);
+ }
+#endif
+
/* Now copy the message, trying to give an intelligible comment if
it is too long for it all to be copied. The limit isn't strictly
applied because of the buffering. There is, however, an option
emf_text = next_emf(emf, US"copy");
+#ifndef EXPERIMENTAL_DSN
if (bounce_return_message)
{
int topt = topt_add_return_path;
if (!bounce_return_body) topt |= topt_no_body;
- if (emf_text != NULL) fprintf(f, "%s", CS emf_text); else
+ if (emf_text)
+ fprintf(f, "%s", CS emf_text);
+ else
{
if (bounce_return_body) fprintf(f,
"------ This is a copy of the message, including all the headers. ------\n");
{
struct stat statbuf;
if (fstat(deliver_datafile, &statbuf) == 0 && statbuf.st_size > max)
- {
- if (emf_text != NULL) fprintf(f, "%s", CS emf_text); else
- {
+ {
+ if (emf_text)
+ fprintf(f, "%s", CS emf_text);
+ else
fprintf(f,
"------ The body of the message is " OFF_T_FMT " characters long; only the first\n"
"------ %d or so are included here.\n", statbuf.st_size, max);
- }
- }
+ }
}
- fprintf(f, "\n");
+ fputc('\n', f);
fflush(f);
+
transport_filter_argv = NULL; /* Just in case */
return_path = sender_address; /* In case not previously set */
transport_write_message(NULL, fileno(f), topt,
/* Write final text and close the template file if one is open */
- if (emf != NULL)
+ if (emf)
{
- emf_text = next_emf(emf, US"final");
- if (emf_text != NULL) fprintf(f, "%s", CS emf_text);
+ if ((emf_text = next_emf(emf, US"final")))
+ fprintf(f, "%s", CS emf_text);
(void)fclose(emf);
}
+#else
+ /* add message body
+ we ignore the intro text from template and add
+ the text for bounce_return_size_limit at the end.
+
+ bounce_return_message is ignored
+ in case RET= is defined we honor these values
+ otherwise bounce_return_body is honored.
+
+ bounce_return_size_limit is always honored.
+ */
+
+ fprintf(f, "\n--%s\n", bound);
+
+ dsnlimitmsg = US"X-Exim-DSN-Information: Due to administrative limits only headers are returned";
+ dsnnotifyhdr = NULL;
+ topt = topt_add_return_path;
+
+ /* RET=HDRS? top priority */
+ if (dsn_ret == dsn_ret_hdrs)
+ topt |= topt_no_body;
+ else
+ /* no full body return at all? */
+ if (!bounce_return_body)
+ {
+ topt |= topt_no_body;
+ /* add header if we overrule RET=FULL */
+ if (dsn_ret == dsn_ret_full)
+ dsnnotifyhdr = dsnlimitmsg;
+ }
+ /* size limited ... return headers only if limit reached */
+ else if (bounce_return_size_limit > 0)
+ {
+ struct stat statbuf;
+ if (fstat(deliver_datafile, &statbuf) == 0 && statbuf.st_size > max)
+ {
+ topt |= topt_no_body;
+ dsnnotifyhdr = dsnlimitmsg;
+ }
+ }
+
+ if (topt & topt_no_body)
+ fprintf(f,"Content-type: text/rfc822-headers\n\n");
+ else
+ fprintf(f,"Content-type: message/rfc822\n\n");
+
+ fflush(f);
+ transport_filter_argv = NULL; /* Just in case */
+ return_path = sender_address; /* In case not previously set */
+ transport_write_message(NULL, fileno(f), topt,
+ 0, dsnnotifyhdr, NULL, NULL, NULL, NULL, 0);
+ fflush(f);
+
+ /* we never add the final text. close the file */
+ if (emf)
+ (void)fclose(emf);
+
+ fprintf(f, "\n--%s--\n", bound);
+#endif /*EXPERIMENTAL_DSN*/
/* Close the file, which should send an EOF to the child process
that is receiving the message. Wait for it to finish. */
if ((log_extra_selector & LX_queue_time_overall) != 0)
log_write(0, LOG_MAIN, "Completed QT=%s",
- readconf_printtime(time(NULL) - received_time));
+ readconf_printtime( (int) ((long)time(NULL) - (long)received_time)) );
else
log_write(0, LOG_MAIN, "Completed");
/* Unset deliver_freeze so that we won't try to move the spool files further down */
deliver_freeze = FALSE;
- }
+
+#ifdef EXPERIMENTAL_EVENT
+ (void) event_raise(event_action, US"msg:complete", NULL);
+#endif
+}
/* If there are deferred addresses, we are keeping this message because it is
not yet completed. Lose any temporary files that were catching output from
it also defers). */
if (!queue_2stage && delivery_attempted &&
+#ifdef EXPERIMENTAL_DSN
+ (((addr_defer->dsn_flags & rf_dsnflags) == 0) ||
+ (addr_defer->dsn_flags & rf_notify_delay) == rf_notify_delay) &&
+#endif
delay_warning[1] > 0 && sender_address[0] != 0 &&
(delay_warning_condition == NULL ||
expand_check_condition(delay_warning_condition,
uschar *wmf_text;
FILE *wmf = NULL;
FILE *f = fdopen(fd, "wb");
+#ifdef EXPERIMENTAL_DSN
+ uschar * bound;
+#endif
- if (warn_message_file != NULL)
+ if (warn_message_file)
{
wmf = Ufopen(warn_message_file, "rb");
if (wmf == NULL)
string_sprintf("%d minutes", show_time/60):
string_sprintf("%d hours", show_time/3600);
- if (errors_reply_to != NULL)
+ if (errors_reply_to)
fprintf(f, "Reply-To: %s\n", errors_reply_to);
fprintf(f, "Auto-Submitted: auto-replied\n");
moan_write_from(f);
fprintf(f, "To: %s\n", recipients);
- wmf_text = next_emf(wmf, US"header");
- if (wmf_text != NULL)
+#ifdef EXPERIMENTAL_DSN
+ /* generated boundary string and output MIME-Headers */
+ bound = string_sprintf(TIME_T_FMT "-eximdsn-%d", time(NULL), rand());
+
+ fprintf(f, "Content-Type: multipart/report;"
+ " report-type=delivery-status; boundary=%s\n"
+ "MIME-Version: 1.0\n",
+ bound);
+#endif
+
+ if ((wmf_text = next_emf(wmf, US"header")))
fprintf(f, "%s\n", wmf_text);
else
fprintf(f, "Subject: Warning: message %s delayed %s\n\n",
message_id, warnmsg_delay);
- wmf_text = next_emf(wmf, US"intro");
- if (wmf_text != NULL) fprintf(f, "%s", CS wmf_text); else
+#ifdef EXPERIMENTAL_DSN
+ /* output human readable part as text/plain section */
+ fprintf(f, "--%s\n"
+ "Content-type: text/plain; charset=us-ascii\n\n",
+ bound);
+#endif
+
+ if ((wmf_text = next_emf(wmf, US"intro")))
+ fprintf(f, "%s", CS wmf_text);
+ else
{
fprintf(f,
"This message was created automatically by mail delivery software.\n");
"A message that you sent has not yet been delivered to one or more of its\n"
"recipients after more than ");
- else fprintf(f,
+ else
+ fprintf(f,
"A message sent by\n\n <%s>\n\n"
"has not yet been delivered to one or more of its recipients after more than \n",
- sender_address);
+ sender_address);
- fprintf(f, "%s on the queue on %s.\n\n", warnmsg_delay,
- primary_hostname);
- fprintf(f, "The message identifier is: %s\n", message_id);
+ fprintf(f, "%s on the queue on %s.\n\n"
+ "The message identifier is: %s\n",
+ warnmsg_delay, primary_hostname, message_id);
for (h = header_list; h != NULL; h = h->next)
- {
if (strncmpic(h->text, US"Subject:", 8) == 0)
fprintf(f, "The subject of the message is: %s", h->text + 9);
else if (strncmpic(h->text, US"Date:", 5) == 0)
fprintf(f, "The date of the message is: %s", h->text + 6);
- }
- fprintf(f, "\n");
+ fputc('\n', f);
fprintf(f, "The address%s to which the message has not yet been "
"delivered %s:\n",
- (addr_defer->next == NULL)? "" : "es",
- (addr_defer->next == NULL)? "is": "are");
+ !addr_defer->next ? "" : "es",
+ !addr_defer->next ? "is": "are");
}
/* List the addresses, with error information if allowed */
- fprintf(f, "\n");
- while (addr_defer != NULL)
+#ifdef EXPERIMENTAL_DSN
+ /* store addr_defer for machine readable part */
+ address_item *addr_dsndefer = addr_defer;
+#endif
+ fputc('\n', f);
+ while (addr_defer)
{
address_item *addr = addr_defer;
addr_defer = addr->next;
if (print_address_information(addr, f, US" ", US"\n ", US""))
print_address_error(addr, f, US"Delay reason: ");
- fprintf(f, "\n");
+ fputc('\n', f);
}
- fprintf(f, "\n");
+ fputc('\n', f);
/* Final text */
- if (wmf != NULL)
+ if (wmf)
{
- wmf_text = next_emf(wmf, US"final");
- if (wmf_text != NULL) fprintf(f, "%s", CS wmf_text);
+ if ((wmf_text = next_emf(wmf, US"final")))
+ fprintf(f, "%s", CS wmf_text);
(void)fclose(wmf);
}
else
"and when that happens, the message will be returned to you.\n");
}
+#ifdef EXPERIMENTAL_DSN
+ /* output machine readable part */
+ fprintf(f, "\n--%s\n"
+ "Content-type: message/delivery-status\n\n"
+ "Reporting-MTA: dns; %s\n",
+ bound,
+ smtp_active_hostname);
+
+
+ if (dsn_envid)
+ {
+ /* must be decoded from xtext: see RFC 3461:6.3a */
+ uschar *xdec_envid;
+ if (auth_xtextdecode(dsn_envid, &xdec_envid) > 0)
+ fprintf(f,"Original-Envelope-ID: %s\n", dsn_envid);
+ else
+ fprintf(f,"X-Original-Envelope-ID: error decoding xtext formated ENVID\n");
+ }
+ fputc('\n', f);
+
+ while (addr_dsndefer)
+ {
+ if (addr_dsndefer->dsn_orcpt)
+ fprintf(f,"Original-Recipient: %s\n", addr_dsndefer->dsn_orcpt);
+
+ fprintf(f,"Action: delayed\n");
+ fprintf(f,"Final-Recipient: rfc822;%s\n", addr_dsndefer->address);
+ fprintf(f,"Status: 4.0.0\n");
+ if (addr_dsndefer->host_used && addr_dsndefer->host_used->name)
+ fprintf(f,"Remote-MTA: dns; %s\nDiagnostic-Code: smtp; %d\n",
+ addr_dsndefer->host_used->name, addr_dsndefer->basic_errno);
+ addr_dsndefer = addr_dsndefer->next;
+ }
+
+ fprintf(f, "\n--%s\n"
+ "Content-type: text/rfc822-headers\n\n",
+ bound);
+
+ fflush(f);
+ /* header only as required by RFC. only failure DSN needs to honor RET=FULL */
+ int topt = topt_add_return_path | topt_no_body;
+ transport_filter_argv = NULL; /* Just in case */
+ return_path = sender_address; /* In case not previously set */
+ /* Write the original email out */
+ transport_write_message(NULL, fileno(f), topt, 0, NULL, NULL, NULL, NULL, NULL, 0);
+ fflush(f);
+
+ fprintf(f,"\n--%s--\n", bound);
+
+ fflush(f);
+#endif /*EXPERIMENTAL_DSN*/
+
/* Close and wait for child process to complete, without a timeout.
If there's an error, don't update the count. */
/* Move the message off the spool if reqested */
- #ifdef SUPPORT_MOVE_FROZEN_MESSAGES
+#ifdef SUPPORT_MOVE_FROZEN_MESSAGES
if (deliver_freeze && move_frozen_messages)
(void)spool_move_message(id, message_subdir, US"", US"F");
- #endif
+#endif
}
/* Closing the data file frees the lock; if the file has been unlinked it
released. */
search_tidyup();
+acl_where = ACL_WHERE_UNKNOWN;
return final_yield;
}
+/* vi: aw ai sw=2
+*/
/* End of deliver.c */
git://git.exim.org / exim.git / blobdiff