*************************************************/
/* Copyright (c) University of Cambridge 1995 - 2018 */
+/* Copyright (c) The Exim Maintainers 2020 */
/* See the file NOTICE for conditions of use and distribution. */
/* Functions concerned with running Exim as a daemon */
static void
sighup_handler(int sig)
{
-sig = sig; /* Keep picky compilers happy */
sighup_seen = TRUE;
signal(SIGHUP, sighup_handler);
}
static void
main_sigchld_handler(int sig)
{
-sig = sig; /* Keep picky compilers happy */
os_non_restarting_signal(SIGCHLD, SIG_DFL);
sigchld_seen = TRUE;
}
this is in the daemon mainline, only fast expansions (such as inline address
checks) should be used. The documentation is full of warnings. */
-if (smtp_accept_max_per_host != NULL)
+if (smtp_accept_max_per_host)
{
uschar *expanded = expand_string(smtp_accept_max_per_host);
- if (expanded == NULL)
+ if (!expanded)
{
if (!f.expand_string_forcedfail)
log_write(0, LOG_MAIN|LOG_PANIC, "expansion of smtp_accept_max_per_host "
uschar *s = expanded;
while (isdigit(*s))
max_for_this_host = max_for_this_host * 10 + *s++ - '0';
- if (*s != 0)
+ if (*s)
log_write(0, LOG_MAIN|LOG_PANIC, "expansion of smtp_accept_max_per_host "
"for %s contains non-digit: %s", whofrom->s, expanded);
}
per host_address checks. Note that at this stage smtp_accept_count contains the
count of *other* connections, not including this one. */
-if ((max_for_this_host > 0) &&
- (smtp_accept_count >= max_for_this_host))
+if (max_for_this_host > 0 && smtp_accept_count >= max_for_this_host)
{
int host_accept_count = 0;
int other_host_count = 0; /* keep a count of non matches to optimise */
early, either by hitting the target, or finding there are not enough
connections left to make the target. */
- if ((host_accept_count >= max_for_this_host) ||
- ((smtp_accept_count - other_host_count) < max_for_this_host))
+ if ( host_accept_count >= max_for_this_host
+ || smtp_accept_count - other_host_count < max_for_this_host)
break;
}
log_write(L_connection_reject,
LOG_MAIN, "Connection from %s refused: too many connections "
"from that IP address", whofrom->s);
+ search_tidyup();
goto ERROR_RETURN;
}
}
if (pid == 0)
{
- int i;
int queue_only_reason = 0;
int old_pool = store_pool;
int save_debug_selector = debug_selector;
}
else
DEBUG(D_any)
- debug_printf("%s\n", string_open_failed(errno, "pid file %s",
- pid_file_path));
+ debug_printf("%s\n", string_open_failed("pid file %s", pid_file_path));
exim_exit(EXIT_SUCCESS);
}
{
int pid;
+#if !defined(DISABLE_TLS) && (defined(EXIM_HAVE_INOTIFY) || defined(EXIM_HAVE_KEVENT))
+tls_watch_invalidate();
+#endif
+
if (daemon_notifier_fd >= 0)
{
close(daemon_notifier_fd);
struct sockaddr_un sa_un = {.sun_family = AF_UNIX};
int len;
+if (!notifier_socket || !*notifier_socket)
+ {
+ DEBUG(D_any) debug_printf("-oY used so not creating notifier socket\n");
+ return;
+ }
if (override_local_interfaces && !override_pid_file_path)
{
DEBUG(D_any)
.msg_controllen = sizeof(cbuf)
};
ssize_t sz;
-struct cmsghdr * cp;
buf[sizeof(buf)-1] = 0;
if ((sz = recvmsg(daemon_notifier_fd, &msg, 0)) <= 0) return FALSE;
buf[sz] = 0;
switch (buf[0])
{
-#ifdef EXPERIMENTAL_QUEUE_RAMP
+#ifndef DISABLE_QUEUE_RAMP
case NOTIFY_MSG_QRUN:
/* this should be a message_id */
DEBUG(D_queue_run)
debug_printf("%s: qrunner trigger: %s\n", __FUNCTION__, buf+1);
memcpy(queuerun_msgid, buf+1, MESSAGE_ID_LENGTH+1);
return TRUE;
-#endif /*EXPERIMENTAL_QUEUE_RAMP*/
+#endif
case NOTIFY_QUEUE_SIZE_REQ:
{
list = override_local_interfaces;
sep = 0;
- while ((s = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)))
+ while ((s = string_nextinlist(&list, &sep, NULL, 0)))
{
uschar joinstr[4];
gstring ** gp = Ustrpbrk(s, ".:") ? &new_local_interfaces : &new_smtp_port;
list = daemon_smtp_port;
sep = 0;
- while ((s = string_nextinlist(&list, &sep, big_buffer, big_buffer_size)))
+ while ((s = string_nextinlist(&list, &sep, NULL, 0)))
pct++;
default_smtp_port = store_get((pct+1) * sizeof(int), FALSE);
list = daemon_smtp_port;
sep = 0;
for (pct = 0;
- (s = string_nextinlist(&list, &sep, big_buffer, big_buffer_size));
+ (s = string_nextinlist(&list, &sep, NULL, 0));
pct++)
{
if (isdigit(*s))
}
else
DEBUG(D_any)
- debug_printf("%s\n", string_open_failed(errno, "pid file %s",
- pid_file_path));
+ debug_printf("%s\n", string_open_failed("pid file %s", pid_file_path));
}
/* Set up the handler for SIGHUP, which causes a restart of the daemon. */
ip_address_item * ipa;
uschar * p;
uschar * qinfo = queue_interval > 0
- ? string_sprintf("-q%s", readconf_printtime(queue_interval))
+ ? string_sprintf("-q%s%s",
+ f.queue_2stage ? "q" : "", readconf_printtime(queue_interval))
: US"no queue runs";
/* Build a list of listening addresses in big_buffer, but limit it to 10
#ifdef SUPPORT_SPF
spf_init();
#endif
+#ifndef DISABLE_TLS
+tls_daemon_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
else
{
DEBUG(D_any) debug_printf("%s received\n",
-#ifdef EXPERIMENTAL_QUEUE_RAMP
+#ifndef DISABLE_QUEUE_RAMP
*queuerun_msgid ? "qrun notification" :
#endif
"SIGALRM");
*p++ = '-';
*p++ = 'q';
if ( f.queue_2stage
-#ifdef EXPERIMENTAL_QUEUE_RAMP
+#ifndef DISABLE_QUEUE_RAMP
&& !*queuerun_msgid
#endif
) *p++ = 'q';
extra[0] = *queue_name
? string_sprintf("%sG%s", opt, queue_name) : opt;
-#ifdef EXPERIMENTAL_QUEUE_RAMP
+#ifndef DISABLE_QUEUE_RAMP
if (*queuerun_msgid)
{
+ log_write(0, LOG_MAIN, "notify triggered queue run");
extra[extracount++] = queuerun_msgid; /* Trigger only the */
extra[extracount++] = queuerun_msgid; /* one message */
}
/* No need to re-exec; SIGALRM remains set to the default handler */
-#ifdef EXPERIMENTAL_QUEUE_RAMP
+#ifndef DISABLE_QUEUE_RAMP
if (*queuerun_msgid)
{
+ log_write(0, LOG_MAIN, "notify triggered queue run");
f.queue_2stage = FALSE;
queue_run(queuerun_msgid, queuerun_msgid, FALSE);
}
/* Reset the alarm clock */
sigalrm_seen = FALSE;
-#ifdef EXPERIMENTAL_QUEUE_RAMP
+#ifndef DISABLE_QUEUE_RAMP
if (*queuerun_msgid)
*queuerun_msgid = 0;
else
fd_set select_listen;
FD_ZERO(&select_listen);
+#ifndef DISABLE_TLS
+ if (tls_watch_fd >= 0)
+ {
+ FD_SET(tls_watch_fd, &select_listen);
+ if (tls_watch_fd > max_socket) max_socket = tls_watch_fd;
+ }
+#endif
if (daemon_notifier_fd >= 0)
+ {
FD_SET(daemon_notifier_fd, &select_listen);
+ if (daemon_notifier_fd > max_socket) max_socket = daemon_notifier_fd;
+ }
for (int sk = 0; sk < listen_socket_count; sk++)
{
FD_SET(listen_sockets[sk], &select_listen);
errno = select_errno;
#ifndef DISABLE_TLS
- /* Create or rotate any required keys */
- tls_daemon_init();
+ /* Create or rotate any required keys; handle (delayed) filewatch event */
+ tls_daemon_tick();
#endif
/* Loop for all the sockets that are currently ready to go. If select
if (!select_failed)
{
+#if !defined(DISABLE_TLS) && (defined(EXIM_HAVE_INOTIFY) || defined(EXIM_HAVE_KEVENT))
+ if (tls_watch_fd >= 0 && FD_ISSET(tls_watch_fd, &select_listen))
+ {
+ FD_CLR(tls_watch_fd, &select_listen);
+ tls_watch_trigger_time = time(NULL); /* Set up delayed event */
+ tls_watch_discard_event(tls_watch_fd);
+ break; /* to top of daemon loop */
+ }
+#endif
if ( daemon_notifier_fd >= 0
&& FD_ISSET(daemon_notifier_fd, &select_listen))
{
git://git.exim.org / exim.git / blobdiff