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authorGerald (Jerry) Carter <jerry@samba.org>2007-10-10 15:34:30 -0500
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 15:34:30 -0500
commite5a951325a6cac8567af3a66de6d2df577508ae4 (patch)
tree34da9fe59f3c2d7f8edb072144443a9704197831 /source3/smbd/server.c
parent57482469b32645250e92a7ffd003aeeb4a42235e (diff)
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[GLUE] Rsync SAMBA_3_2_0 SVN r25598 in order to create the v3-2-test branch.
(This used to be commit 5c6c8e1fe93f340005110a7833946191659d88ab)
Diffstat (limited to 'source3/smbd/server.c')
-rw-r--r--source3/smbd/server.c246
1 files changed, 155 insertions, 91 deletions
diff --git a/source3/smbd/server.c b/source3/smbd/server.c
index 72eeb7ee6a..0f47a550e9 100644
--- a/source3/smbd/server.c
+++ b/source3/smbd/server.c
@@ -4,7 +4,6 @@
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Martin Pool 2002
Copyright (C) Jelmer Vernooij 2002-2003
- Copyright (C) James Peach 2007
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -294,33 +293,25 @@ static BOOL allowable_number_of_smbd_processes(void)
}
/****************************************************************************
- Are we idle enough that we could safely exit?
-****************************************************************************/
-
-static BOOL smbd_is_idle(void)
-{
- /* Currently we define "idle" as having no client connections. */
- return count_all_current_connections() == 0;
-}
-
-/****************************************************************************
Open the socket communication.
****************************************************************************/
-static BOOL open_sockets_smbd(enum smb_server_mode server_mode, const char *smb_ports)
+static BOOL open_sockets_smbd(BOOL is_daemon, BOOL interactive, const char *smb_ports)
{
+ int num_interfaces = iface_count();
int num_sockets = 0;
int fd_listenset[FD_SETSIZE];
fd_set listen_set;
int s;
int maxfd = 0;
int i;
- struct timeval idle_timeout = timeval_zero();
+ char *ports;
- if (server_mode == SERVER_MODE_INETD) {
+ if (!is_daemon) {
return open_sockets_inetd();
}
+
#ifdef HAVE_ATEXIT
{
static int atexit_set;
@@ -333,21 +324,116 @@ static BOOL open_sockets_smbd(enum smb_server_mode server_mode, const char *smb_
/* Stop zombies */
CatchSignal(SIGCLD, sig_cld);
-
+
FD_ZERO(&listen_set);
- /* At this point, it doesn't matter what daemon mode we are in, we
- * need some sockets to listen on.
- */
- num_sockets = smbd_sockinit(smb_ports, fd_listenset, &idle_timeout);
- if (num_sockets == 0) {
- return False;
+ /* use a reasonable default set of ports - listing on 445 and 139 */
+ if (!smb_ports) {
+ ports = lp_smb_ports();
+ if (!ports || !*ports) {
+ ports = smb_xstrdup(SMB_PORTS);
+ } else {
+ ports = smb_xstrdup(ports);
+ }
+ } else {
+ ports = smb_xstrdup(smb_ports);
}
- for (i = 0; i < num_sockets; ++i) {
- FD_SET(fd_listenset[i], &listen_set);
- maxfd = MAX(maxfd, fd_listenset[i]);
- }
+ if (lp_interfaces() && lp_bind_interfaces_only()) {
+ /* We have been given an interfaces line, and been
+ told to only bind to those interfaces. Create a
+ socket per interface and bind to only these.
+ */
+
+ /* Now open a listen socket for each of the
+ interfaces. */
+ for(i = 0; i < num_interfaces; i++) {
+ struct in_addr *ifip = iface_n_ip(i);
+ fstring tok;
+ const char *ptr;
+
+ if(ifip == NULL) {
+ DEBUG(0,("open_sockets_smbd: interface %d has NULL IP address !\n", i));
+ continue;
+ }
+
+ for (ptr=ports; next_token(&ptr, tok, " \t,", sizeof(tok)); ) {
+ unsigned port = atoi(tok);
+ if (port == 0 || port > 0xffff) {
+ continue;
+ }
+ s = fd_listenset[num_sockets] = open_socket_in(SOCK_STREAM, port, 0, ifip->s_addr, True);
+ if(s == -1)
+ return False;
+
+ /* ready to listen */
+ set_socket_options(s,"SO_KEEPALIVE");
+ set_socket_options(s,user_socket_options);
+
+ /* Set server socket to non-blocking for the accept. */
+ set_blocking(s,False);
+
+ if (listen(s, SMBD_LISTEN_BACKLOG) == -1) {
+ DEBUG(0,("listen: %s\n",strerror(errno)));
+ close(s);
+ return False;
+ }
+ FD_SET(s,&listen_set);
+ maxfd = MAX( maxfd, s);
+
+ num_sockets++;
+ if (num_sockets >= FD_SETSIZE) {
+ DEBUG(0,("open_sockets_smbd: Too many sockets to bind to\n"));
+ return False;
+ }
+ }
+ }
+ } else {
+ /* Just bind to 0.0.0.0 - accept connections
+ from anywhere. */
+
+ fstring tok;
+ const char *ptr;
+
+ num_interfaces = 1;
+
+ for (ptr=ports; next_token(&ptr, tok, " \t,", sizeof(tok)); ) {
+ unsigned port = atoi(tok);
+ if (port == 0 || port > 0xffff) continue;
+ /* open an incoming socket */
+ s = open_socket_in(SOCK_STREAM, port, 0,
+ interpret_addr(lp_socket_address()),True);
+ if (s == -1)
+ return(False);
+
+ /* ready to listen */
+ set_socket_options(s,"SO_KEEPALIVE");
+ set_socket_options(s,user_socket_options);
+
+ /* Set server socket to non-blocking for the accept. */
+ set_blocking(s,False);
+
+ if (listen(s, SMBD_LISTEN_BACKLOG) == -1) {
+ DEBUG(0,("open_sockets_smbd: listen: %s\n",
+ strerror(errno)));
+ close(s);
+ return False;
+ }
+
+ fd_listenset[num_sockets] = s;
+ FD_SET(s,&listen_set);
+ maxfd = MAX( maxfd, s);
+
+ num_sockets++;
+
+ if (num_sockets >= FD_SETSIZE) {
+ DEBUG(0,("open_sockets_smbd: Too many sockets to bind to\n"));
+ return False;
+ }
+ }
+ }
+
+ SAFE_FREE(ports);
/* Setup the main smbd so that we can get messages. Note that
@@ -380,7 +466,7 @@ static BOOL open_sockets_smbd(enum smb_server_mode server_mode, const char *smb_
for each incoming connection */
DEBUG(2,("waiting for a connection\n"));
while (1) {
- struct timeval now;
+ struct timeval now, idle_timeout;
fd_set r_fds, w_fds;
int num;
@@ -396,6 +482,8 @@ static BOOL open_sockets_smbd(enum smb_server_mode server_mode, const char *smb_
}
}
+ idle_timeout = timeval_zero();
+
memcpy((char *)&r_fds, (char *)&listen_set,
sizeof(listen_set));
FD_ZERO(&w_fds);
@@ -405,21 +493,9 @@ static BOOL open_sockets_smbd(enum smb_server_mode server_mode, const char *smb_
&r_fds, &w_fds, &idle_timeout,
&maxfd);
- if (timeval_is_zero(&idle_timeout)) {
- num = sys_select(maxfd + 1, &r_fds, &w_fds,
- NULL, NULL);
- } else {
- num = sys_select(maxfd + 1, &r_fds, &w_fds,
- NULL, &idle_timeout);
-
- /* If the idle timeout fired and we are idle, exit
- * gracefully. We expect to be running under a process
- * controller that will restart us if necessry.
- */
- if (num == 0 && smbd_is_idle()) {
- exit_server_cleanly("idle timeout");
- }
- }
+ num = sys_select(maxfd+1,&r_fds,&w_fds,NULL,
+ timeval_is_zero(&idle_timeout) ?
+ NULL : &idle_timeout);
if (num == -1 && errno == EINTR) {
if (got_sig_term) {
@@ -436,7 +512,7 @@ static BOOL open_sockets_smbd(enum smb_server_mode server_mode, const char *smb_
continue;
}
-
+
if (run_events(smbd_event_context(), num, &r_fds, &w_fds)) {
continue;
}
@@ -476,13 +552,8 @@ static BOOL open_sockets_smbd(enum smb_server_mode server_mode, const char *smb_
/* Ensure child is set to blocking mode */
set_blocking(smbd_server_fd(),True);
- /* In interactive mode, return with a connected socket.
- * Foreground and daemon modes should fork worker
- * processes.
- */
- if (server_mode == SERVER_MODE_INTERACTIVE) {
+ if (smbd_server_fd() != -1 && interactive)
return True;
- }
if (allowable_number_of_smbd_processes() &&
smbd_server_fd() != -1 &&
@@ -694,8 +765,6 @@ static void exit_server_common(enum server_exit_reason how,
locking_end();
printing_end();
- server_encryption_shutdown();
-
if (how != SERVER_EXIT_NORMAL) {
int oldlevel = DEBUGLEVEL;
@@ -804,26 +873,23 @@ extern void build_options(BOOL screen);
int main(int argc,const char *argv[])
{
/* shall I run as a daemon */
- BOOL no_process_group = False;
- BOOL log_stdout = False;
- const char *ports = NULL;
- const char *profile_level = NULL;
+ static BOOL is_daemon = False;
+ static BOOL interactive = False;
+ static BOOL Fork = True;
+ static BOOL no_process_group = False;
+ static BOOL log_stdout = False;
+ static char *ports = NULL;
+ static char *profile_level = NULL;
int opt;
poptContext pc;
BOOL print_build_options = False;
- enum smb_server_mode server_mode = SERVER_MODE_DAEMON;
-
struct poptOption long_options[] = {
POPT_AUTOHELP
- {"daemon", 'D', POPT_ARG_VAL, &server_mode, SERVER_MODE_DAEMON,
- "Become a daemon (default)" },
- {"interactive", 'i', POPT_ARG_VAL, &server_mode, SERVER_MODE_INTERACTIVE,
- "Run interactive (not a daemon)"},
- {"foreground", 'F', POPT_ARG_VAL, &server_mode, SERVER_MODE_FOREGROUND,
- "Run daemon in foreground (for daemontools, etc.)" },
- {"no-process-group", '\0', POPT_ARG_VAL, &no_process_group, True,
- "Don't create a new process group" },
+ {"daemon", 'D', POPT_ARG_VAL, &is_daemon, True, "Become a daemon (default)" },
+ {"interactive", 'i', POPT_ARG_VAL, &interactive, True, "Run interactive (not a daemon)"},
+ {"foreground", 'F', POPT_ARG_VAL, &Fork, False, "Run daemon in foreground (for daemontools, etc.)" },
+ {"no-process-group", '\0', POPT_ARG_VAL, &no_process_group, True, "Don't create a new process group" },
{"log-stdout", 'S', POPT_ARG_VAL, &log_stdout, True, "Log to stdout" },
{"build-options", 'b', POPT_ARG_NONE, NULL, 'b', "Print build options" },
{"port", 'p', POPT_ARG_STRING, &ports, 0, "Listen on the specified ports"},
@@ -870,14 +936,16 @@ extern void build_options(BOOL screen);
set_remote_machine_name("smbd", False);
- if (server_mode == SERVER_MODE_INTERACTIVE) {
+ if (interactive) {
+ Fork = False;
log_stdout = True;
- if (DEBUGLEVEL >= 9) {
- talloc_enable_leak_report();
- }
}
- if (log_stdout && server_mode == SERVER_MODE_DAEMON) {
+ if (interactive && (DEBUGLEVEL >= 9)) {
+ talloc_enable_leak_report();
+ }
+
+ if (log_stdout && Fork) {
DEBUG(0,("ERROR: Can't log to stdout (-S) unless daemon is in foreground (-F) or interactive (-i)\n"));
exit(1);
}
@@ -967,19 +1035,21 @@ extern void build_options(BOOL screen);
DEBUG(3,( "loaded services\n"));
- if (is_a_socket(0)) {
- if (server_mode == SERVER_MODE_DAEMON) {
- DEBUG(0,("standard input is a socket, "
- "assuming -F option\n"));
- }
- server_mode = SERVER_MODE_INETD;
+ if (!is_daemon && !is_a_socket(0)) {
+ if (!interactive)
+ DEBUG(0,("standard input is not a socket, assuming -D option\n"));
+
+ /*
+ * Setting is_daemon here prevents us from eventually calling
+ * the open_sockets_inetd()
+ */
+
+ is_daemon = True;
}
- if (server_mode == SERVER_MODE_DAEMON) {
+ if (is_daemon && !interactive) {
DEBUG( 3, ( "Becoming a daemon.\n" ) );
- become_daemon(True, no_process_group);
- } else if (server_mode == SERVER_MODE_FOREGROUND) {
- become_daemon(False, no_process_group);
+ become_daemon(Fork, no_process_group);
}
#if HAVE_SETPGID
@@ -987,18 +1057,15 @@ extern void build_options(BOOL screen);
* If we're interactive we want to set our own process group for
* signal management.
*/
- if (server_mode == SERVER_MODE_INTERACTIVE && !no_process_group) {
+ if (interactive && !no_process_group)
setpgid( (pid_t)0, (pid_t)0);
- }
#endif
if (!directory_exist(lp_lockdir(), NULL))
mkdir(lp_lockdir(), 0755);
- if (server_mode != SERVER_MODE_INETD &&
- server_mode != SERVER_MODE_INTERACTIVE) {
+ if (is_daemon)
pidfile_create("smbd");
- }
/* Setup all the TDB's - including CLEAR_IF_FIRST tdb's. */
@@ -1052,10 +1119,9 @@ extern void build_options(BOOL screen);
running as a daemon -- bad things will happen if
smbd is launched via inetd and we fork a copy of
ourselves here */
- if (server_mode != SERVER_MODE_INETD &&
- server_mode != SERVER_MODE_INTERACTIVE) {
+
+ if ( is_daemon && !interactive )
start_background_queue();
- }
/* Always attempt to initialize DMAPI. We will only use it later if
* lp_dmapi_support is set on the share, but we need a single global
@@ -1063,9 +1129,8 @@ extern void build_options(BOOL screen);
*/
dmapi_init_session();
- if (!open_sockets_smbd(server_mode, ports)) {
+ if (!open_sockets_smbd(is_daemon, interactive, ports))
exit(1);
- }
/*
* everything after this point is run after the fork()
@@ -1078,8 +1143,7 @@ extern void build_options(BOOL screen);
/* Possibly reload the services file. Only worth doing in
* daemon mode. In inetd mode, we know we only just loaded this.
*/
- if (server_mode != SERVER_MODE_INETD &&
- server_mode != SERVER_MODE_INTERACTIVE) {
+ if (is_daemon) {
reload_services(True);
}