* Exim - an Internet mail transport agent *
*************************************************/
-/* Copyright (c) University of Cambridge 1995 - 2012 */
+/* Copyright (c) University of Cambridge 1995 - 2016 */
/* See the file NOTICE for conditions of use and distribution. */
/* Functions concerned with running Exim as a daemon */
int max_for_this_host = 0;
int wfsize = 0;
int wfptr = 0;
-int use_log_write_selector = log_write_selector;
+int save_log_selector = *log_selector;
uschar *whofrom = NULL;
void *reset_point = store_get(0);
whofrom = string_append(whofrom, &wfsize, &wfptr, 3, "[", sender_host_address, "]");
-if ((log_extra_selector & LX_incoming_port) != 0)
+if (LOGGING(incoming_port))
whofrom = string_append(whofrom, &wfsize, &wfptr, 2, ":", string_sprintf("%d",
sender_host_port));
-if ((log_extra_selector & LX_incoming_interface) != 0)
+if (LOGGING(incoming_interface))
whofrom = string_append(whofrom, &wfsize, &wfptr, 4, " I=[",
interface_address, "]:", string_sprintf("%d", interface_port));
selector is set, check whether the host is on the list for logging. If not,
arrange to unset the selector in the subprocess. */
-if ((log_write_selector & L_smtp_connection) != 0)
+if (LOGGING(smtp_connection))
{
uschar *list = hosts_connection_nolog;
+ memset(sender_host_cache, 0, sizeof(sender_host_cache));
if (list != NULL && verify_check_host(&list) == OK)
- use_log_write_selector &= ~L_smtp_connection;
+ save_log_selector &= ~L_smtp_connection;
else
log_write(L_smtp_connection, LOG_MAIN, "SMTP connection from %s "
"(TCP/IP connection count = %d)", whofrom, smtp_accept_count + 1);
/* May have been modified for the subprocess */
- log_write_selector = use_log_write_selector;
+ *log_selector = save_log_selector;
/* Get the local interface address into permanent store */
/* Check for a tls-on-connect port */
- if (host_is_tls_on_connect_port(interface_port)) tls_on_connect = TRUE;
+ if (host_is_tls_on_connect_port(interface_port)) tls_in.on_connect = TRUE;
/* Expand smtp_active_hostname if required. We do not do this any earlier,
because it may depend on the local interface address (indeed, that is most
}
else
{
+ int i;
+ uschar * buf[128];
mac_smtp_fflush();
+ /* drain socket, for clean TCP FINs */
+ for(i = 16; read(fileno(smtp_in), buf, sizeof(buf)) > 0 && i > 0; ) i--;
search_tidyup();
smtp_log_no_mail(); /* Log no mail if configured */
+
+ /*XXX should we pause briefly, hoping that the client will be the
+ active TCP closer hence get the TCP_WAIT endpoint? */
+ DEBUG(D_receive) debug_printf("SMTP>>(close on process exit)\n");
_exit((rc == 0)? EXIT_SUCCESS : EXIT_FAILURE);
}
the data structures if necessary. */
#ifdef SUPPORT_TLS
- tls_close(FALSE);
+ tls_close(TRUE, FALSE);
#endif
/* Reset SIGHUP and SIGCHLD in the child in both cases. */
if (geteuid() != root_uid && !deliver_drop_privilege)
{
signal(SIGALRM, SIG_DFL);
- (void)child_exec_exim(CEE_EXEC_PANIC, FALSE, NULL, FALSE, 2, US"-Mc",
- message_id);
+ (void)child_exec_exim(CEE_EXEC_PANIC, FALSE, NULL, FALSE,
+ 2, US"-Mc", message_id);
/* Control does not return here. */
}
/* Release any store used in this process, including the store used for holding
the incoming host address and an expanded active_hostname. */
+log_close_all();
store_reset(reset_point);
sender_host_address = NULL;
}
/* If it wasn't an accepting process, see if it was a queue-runner
process that we are tracking. */
- if (queue_pid_slots != NULL)
+ if (queue_pid_slots)
{
- for (i = 0; i < queue_run_max; i++)
- {
+ int max = atoi(CS expand_string(queue_run_max));
+ for (i = 0; i < max; i++)
if (queue_pid_slots[i] == pid)
{
queue_pid_slots[i] = 0;
queue_run_count, (queue_run_count == 1)? "" : "es");
break;
}
- }
}
}
}
int listen_socket_count = 0;
ip_address_item *addresses = NULL;
time_t last_connection_time = (time_t)0;
+int local_queue_run_max = atoi(CS expand_string(queue_run_max));
/* If any debugging options are set, turn on the D_pid bit so that all
debugging lines get the pid added. */
int on = 1;
listen_socket_count = 1;
- listen_sockets = store_get(sizeof(int *));
+ listen_sockets = store_get(sizeof(int));
(void) close(3);
if (dup2(0, 3) == -1)
- {
log_write(0, LOG_MAIN|LOG_PANIC_DIE,
"failed to dup inetd socket safely away: %s", strerror(errno));
- }
+
listen_sockets[0] = 3;
(void) close(0);
(void) close(1);
/* As per below, when creating sockets ourselves, we handle tcp_nodelay for
our own buffering; we assume though that inetd set the socket REUSEADDR. */
- if (tcp_nodelay) setsockopt(3, IPPROTO_TCP, TCP_NODELAY,
- (uschar *)(&on), sizeof(on));
+ if (tcp_nodelay)
+ if (setsockopt(3, IPPROTO_TCP, TCP_NODELAY, US &on, sizeof(on)))
+ log_write(0, LOG_MAIN|LOG_PANIC_DIE, "failed to set socket NODELAY: %s",
+ strerror(errno));
}
int sep;
int pct = 0;
uschar *s;
- uschar *list;
+ const uschar * list;
uschar *local_iface_source = US"local_interfaces";
ip_address_item *ipa;
ip_address_item **pipa;
list = override_local_interfaces;
sep = 0;
- while ((s = string_nextinlist(&list,&sep,big_buffer,big_buffer_size))
- != NULL)
+ while ((s = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)))
{
uschar joinstr[4];
uschar **ptr;
{
joinstr[0] = sep;
joinstr[1] = ' ';
- *ptr = string_cat(*ptr, sizeptr, ptrptr, US"<", 1);
+ *ptr = string_catn(*ptr, sizeptr, ptrptr, US"<", 1);
}
- *ptr = string_cat(*ptr, sizeptr, ptrptr, joinstr, 2);
- *ptr = string_cat(*ptr, sizeptr, ptrptr, s, Ustrlen(s));
+ *ptr = string_catn(*ptr, sizeptr, ptrptr, joinstr, 2);
+ *ptr = string_cat (*ptr, sizeptr, ptrptr, s);
}
if (new_smtp_port != NULL)
list = daemon_smtp_port;
sep = 0;
- while ((s = string_nextinlist(&list,&sep,big_buffer,big_buffer_size)) != NULL)
+ while ((s = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)))
pct++;
default_smtp_port = store_get((pct+1) * sizeof(int));
list = daemon_smtp_port;
sep = 0;
for (pct = 0;
- (s = string_nextinlist(&list,&sep,big_buffer,big_buffer_size)) != NULL;
+ (s = string_nextinlist(&list, &sep, big_buffer, big_buffer_size));
pct++)
{
if (isdigit(*s))
else
{
struct servent *smtp_service = getservbyname(CS s, "tcp");
- if (smtp_service == NULL)
+ if (!smtp_service)
log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "TCP port \"%s\" not found", s);
default_smtp_port[pct] = ntohs(smtp_service->s_port);
}
}
default_smtp_port[pct] = 0;
+ /* Check the list of TLS-on-connect ports and do name lookups if needed */
+
+ list = tls_in.on_connect_ports;
+ sep = 0;
+ while ((s = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)))
+ if (!isdigit(*s))
+ {
+ list = tls_in.on_connect_ports;
+ tls_in.on_connect_ports = NULL;
+ sep = 0;
+ while ((s = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)))
+ {
+ if (!isdigit(*s))
+ {
+ struct servent *smtp_service = getservbyname(CS s, "tcp");
+ if (!smtp_service)
+ log_write(0, LOG_PANIC_DIE|LOG_CONFIG, "TCP port \"%s\" not found", s);
+ s= string_sprintf("%d", (int)ntohs(smtp_service->s_port));
+ }
+ tls_in.on_connect_ports = string_append_listele(tls_in.on_connect_ports,
+ ':', s);
+ }
+ break;
+ }
+
/* Create the list of local interfaces, possibly with ports included. This
list may contain references to 0.0.0.0 and ::0 as wildcards. These special
values are converted below. */
for (ipa = addresses; ipa != NULL; ipa = ipa->next)
listen_socket_count++;
- listen_sockets = store_get(sizeof(int *) * listen_socket_count);
+ listen_sockets = store_get(sizeof(int) * listen_socket_count);
} /* daemon_listen but not inetd_wait_mode */
wildcard = ipa->address[0] == 0;
}
- listen_sockets[sk] = ip_socket(SOCK_STREAM, af);
- if (listen_sockets[sk] < 0)
+ if ((listen_sockets[sk] = ip_socket(SOCK_STREAM, af)) < 0)
{
if (check_special_case(0, addresses, ipa, FALSE))
{
/* Get somewhere to keep the list of queue-runner pids if we are keeping track
of them (and also if we are doing queue runs). */
-if (queue_interval > 0 && queue_run_max > 0)
+if (queue_interval > 0 && local_queue_run_max > 0)
{
int i;
- queue_pid_slots = store_get(queue_run_max * sizeof(pid_t));
- for (i = 0; i < queue_run_max; i++) queue_pid_slots[i] = 0;
+ queue_pid_slots = store_get(local_queue_run_max * sizeof(pid_t));
+ for (i = 0; i < local_queue_run_max; i++) queue_pid_slots[i] = 0;
}
/* Set up the handler for termination of child processes. */
log_write(0, LOG_MAIN,
"exim %s daemon started: pid=%d, launched with listening socket, %s",
version_string, getpid(), big_buffer);
- set_process_info("daemon: pre-listening socket");
+ set_process_info("daemon(%s): pre-listening socket", version_string);
/* set up the timeout logic */
sigalrm_seen = 1;
int i, j;
int smtp_ports = 0;
int smtps_ports = 0;
- ip_address_item *ipa;
- uschar *p = big_buffer;
- uschar *qinfo = (queue_interval > 0)?
- string_sprintf("-q%s", readconf_printtime(queue_interval))
- :
- US"no queue runs";
+ ip_address_item * ipa;
+ uschar * p = big_buffer;
+ uschar * qinfo = queue_interval > 0
+ ? string_sprintf("-q%s", readconf_printtime(queue_interval))
+ : US"no queue runs";
/* Build a list of listening addresses in big_buffer, but limit it to 10
items. The style is for backwards compatibility.
for (j = 0; j < 2; j++)
{
- for (i = 0, ipa = addresses; i < 10 && ipa != NULL; i++, ipa = ipa->next)
+ for (i = 0, ipa = addresses; i < 10 && ipa; i++, ipa = ipa->next)
{
/* First time round, look for SMTP ports; second time round, look for
SMTPS ports. For the first one of each, insert leading text. */
if (host_is_tls_on_connect_port(ipa->port) == (j > 0))
{
- if (j == 0)
- {
- if (smtp_ports++ == 0)
+ if (j == 0)
+ {
+ if (smtp_ports++ == 0)
{
memcpy(p, "SMTP on", 8);
p += 7;
}
- }
- else
- {
- if (smtps_ports++ == 0)
+ }
+ else
+ {
+ if (smtps_ports++ == 0)
{
(void)sprintf(CS p, "%sSMTPS on",
- (smtp_ports == 0)? "":" and for ");
- while (*p != 0) p++;
+ smtp_ports == 0 ? "" : " and for ");
+ while (*p) p++;
}
- }
+ }
/* Now the information about the port (and sometimes interface) */
}
}
- if (ipa != NULL)
+ if (ipa)
{
memcpy(p, " ...", 5);
p += 4;
log_write(0, LOG_MAIN,
"exim %s daemon started: pid=%d, %s, listening for %s",
version_string, getpid(), qinfo, big_buffer);
- set_process_info("daemon: %s, listening for %s", qinfo, big_buffer);
+ set_process_info("daemon(%s): %s, listening for %s",
+ version_string, qinfo, big_buffer);
}
else
{
+ uschar * s = *queue_name
+ ? string_sprintf("-qG%s/%s", queue_name, readconf_printtime(queue_interval))
+ : string_sprintf("-q%s", readconf_printtime(queue_interval));
log_write(0, LOG_MAIN,
- "exim %s daemon started: pid=%d, -q%s, not listening for SMTP",
- version_string, getpid(), readconf_printtime(queue_interval));
- set_process_info("daemon: -q%s, not listening",
- readconf_printtime(queue_interval));
+ "exim %s daemon started: pid=%d, %s, not listening for SMTP",
+ version_string, getpid(), s);
+ set_process_info("daemon(%s): %s, not listening", version_string, s);
}
+/* Do any work it might be useful to amortize over our children
+(eg: compile regex) */
+
+dns_pattern_init();
+
+#ifdef WITH_CONTENT_SCAN
+malware_init();
+#endif
/* Close the log so it can be renamed and moved. In the few cases below where
this long-running process writes to the log (always exceptional conditions), it
re-exec is required. */
if (queue_interval > 0 &&
- (queue_run_max <= 0 || queue_run_count < queue_run_max))
+ (local_queue_run_max <= 0 || queue_run_count < local_queue_run_max))
{
if ((pid = fork()) == 0)
{
if (deliver_force_thaw) *p++ = 'f';
if (queue_run_local) *p++ = 'l';
*p = 0;
- extra[0] = opt;
+ extra[0] = queue_name
+ ? string_sprintf("%sG%s", opt, queue_name) : opt;
/* If -R or -S were on the original command line, ensure they get
passed on. */
- if (deliver_selectstring != NULL)
+ if (deliver_selectstring)
{
- extra[extracount++] = deliver_selectstring_regex? US"-Rr" : US"-R";
+ extra[extracount++] = deliver_selectstring_regex ? US"-Rr" : US"-R";
extra[extracount++] = deliver_selectstring;
}
- if (deliver_selectstring_sender != NULL)
+ if (deliver_selectstring_sender)
{
- extra[extracount++] = deliver_selectstring_sender_regex?
- US"-Sr" : US"-S";
+ extra[extracount++] = deliver_selectstring_sender_regex
+ ? US"-Sr" : US"-S";
extra[extracount++] = deliver_selectstring_sender;
}
else
{
int i;
- for (i = 0; i < queue_run_max; ++i)
- {
+ for (i = 0; i < local_queue_run_max; ++i)
if (queue_pid_slots[i] <= 0)
{
queue_pid_slots[i] = pid;
queue_run_count++;
break;
}
- }
DEBUG(D_any) debug_printf("%d queue-runner process%s running\n",
queue_run_count, (queue_run_count == 1)? "" : "es");
}
/* Control never reaches here */
}
+/* vi: aw ai sw=2
+*/
/* End of exim_daemon.c */
-
projects / exim.git / blobdiff