-/*
+/*
Unix SMB/CIFS implementation.
Main SMB server routines
Copyright (C) Andrew Tridgell 1992-1998
Copyright (C) Martin Pool 2002
Copyright (C) Jelmer Vernooij 2002-2003
- Copyright (C) James Peach 2007
-
+ Copyright (C) Volker Lendecke 1993-2007
+ Copyright (C) Jeremy Allison 1993-2007
+
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
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
client_setfd(fd);
}
+
struct event_context *smbd_event_context(void)
{
static struct event_context *ctx;
if (!ctx && !(ctx = event_context_init(NULL))) {
- smb_panic("Could not init smbd event context\n");
+ smb_panic("Could not init smbd event context");
}
return ctx;
}
if (!ctx && !(ctx = messaging_init(NULL, server_id_self(),
smbd_event_context()))) {
- smb_panic("Could not init smbd messaging context\n");
+ smb_panic("Could not init smbd messaging context");
}
return ctx;
}
DEBUG(10, ("** sam sync message received, ignoring\n"));
}
-/****************************************************************************
- Process a sam sync replicate message - not sure whether to do this here or
- somewhere else.
-****************************************************************************/
-
-static void msg_sam_repl(struct messaging_context *msg,
- void *private_data,
- uint32_t msg_type,
- struct server_id server_id,
- DATA_BLOB *data)
-{
- uint32 low_serial;
-
- if (data->length != sizeof(low_serial))
- return;
-
- low_serial = *((uint32 *)data->data);
-
- DEBUG(3, ("received sam replication message, serial = 0x%04x\n",
- low_serial));
-}
/****************************************************************************
Open the socket communication - inetd.
****************************************************************************/
-static BOOL open_sockets_inetd(void)
+static bool open_sockets_inetd(void)
{
/* Started from inetd. fd 0 is the socket. */
/* We will abort gracefully when the client or remote system
Have we reached the process limit ?
****************************************************************************/
-static BOOL allowable_number_of_smbd_processes(void)
+static bool allowable_number_of_smbd_processes(void)
{
int max_processes = lp_max_smbd_processes();
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();
}
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++) {
+ const struct sockaddr_storage *ifss =
+ iface_n_sockaddr_storage(i);
+ fstring tok;
+ const char *ptr;
+
+ if (ifss == 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,
+ ifss, True);
+ if(s == -1) {
+ continue;
+ }
+
+ /* 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_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;
+ const char *sock_addr = lp_socket_address();
+ fstring sock_tok;
+ const char *sock_ptr;
+
+ if (strequal(sock_addr, "0.0.0.0") ||
+ strequal(sock_addr, "::")) {
+#if HAVE_IPV6
+ sock_addr = "::,0.0.0.0";
+#else
+ sock_addr = "0.0.0.0";
+#endif
+ }
+
+ for (sock_ptr=sock_addr; next_token(&sock_ptr, sock_tok, " \t,",
+ sizeof(sock_tok)); ) {
+ for (ptr=ports; next_token(&ptr, tok, " \t,",
+ sizeof(tok)); ) {
+ struct sockaddr_storage ss;
+
+ unsigned port = atoi(tok);
+ if (port == 0 || port > 0xffff) {
+ continue;
+ }
+ /* open an incoming socket */
+ if (!interpret_string_addr(&ss, sock_tok,
+ AI_NUMERICHOST|AI_PASSIVE)) {
+ continue;
+ }
+
+ s = open_socket_in(SOCK_STREAM, port, 0,
+ &ss, true);
+ if (s == -1) {
+ continue;
+ }
+
+ /* 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);
+
+ if (num_sockets == 0) {
+ DEBUG(0,("open_sockets_smbd: No "
+ "sockets available to bind to.\n"));
+ return false;
}
+ /* Setup the main smbd so that we can get messages. Note that
+ do this after starting listening. This is needed as when in
+ clustered mode, ctdb won't allow us to start doing database
+ operations until it has gone thru a full startup, which
+ includes checking to see that smbd is listening. */
+ claim_connection(NULL,"",FLAG_MSG_GENERAL|FLAG_MSG_SMBD);
+
/* Listen to messages */
messaging_register(smbd_messaging_context(), NULL,
MSG_SMB_SAM_SYNC, msg_sam_sync);
- messaging_register(smbd_messaging_context(), NULL,
- MSG_SMB_SAM_REPL, msg_sam_repl);
messaging_register(smbd_messaging_context(), NULL,
MSG_SHUTDOWN, msg_exit_server);
messaging_register(smbd_messaging_context(), NULL,
MSG_SMB_FILE_RENAME, msg_file_was_renamed);
messaging_register(smbd_messaging_context(), NULL,
- MSG_SMB_CONF_UPDATED, smb_conf_updated);
+ MSG_SMB_CONF_UPDATED, smb_conf_updated);
messaging_register(smbd_messaging_context(), NULL,
MSG_SMB_STAT_CACHE_DELETE, smb_stat_cache_delete);
brl_register_msgs(smbd_messaging_context());
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;
-
- /* Free up temporary memory from the main smbd. */
- lp_TALLOC_FREE();
/* Ensure we respond to PING and DEBUG messages from the main smbd. */
message_dispatch(smbd_messaging_context());
}
}
- memcpy((char *)&r_fds, (char *)&listen_set,
+ idle_timeout = timeval_zero();
+
+ memcpy((char *)&r_fds, (char *)&listen_set,
sizeof(listen_set));
FD_ZERO(&w_fds);
GetTimeOfDay(&now);
num = sys_select(maxfd+1,&r_fds,&w_fds,NULL,
timeval_is_zero(&idle_timeout) ?
NULL : &idle_timeout);
-
- run_events(smbd_event_context(), num, &r_fds, &w_fds);
if (num == -1 && errno == EINTR) {
if (got_sig_term) {
continue;
}
-#if 0
- Deactivated for now, this needs to become a timed event
- vl
-
- /* If the idle timeout fired and we don't have any connected
- * users, exit gracefully. We should be running under a process
- * controller that will restart us if necessry.
- */
- if (num == 0 && count_all_current_connections() == 0) {
- exit_server_cleanly("idle timeout");
+ if (run_events(smbd_event_context(), num, &r_fds, &w_fds)) {
+ continue;
}
-#endif
/* check if we need to reload services */
check_reload(time(NULL));
}
smbd_set_server_fd(accept(s,&addr,&in_addrlen));
-
+
if (smbd_server_fd() == -1 && errno == EINTR)
continue;
-
+
if (smbd_server_fd() == -1) {
DEBUG(0,("open_sockets_smbd: accept: %s\n",
strerror(errno)));
/* 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 &&
((child = sys_fork())==0)) {
+ char remaddr[INET6_ADDRSTRLEN];
+
/* Child code ... */
/* Stop zombies, the parent explicitly handles
* them, counting worker smbds. */
CatchChild();
-
+
/* close the listening socket(s) */
for(i = 0; i < num_sockets; i++)
close(fd_listenset[i]);
-
+
/* close our standard file
descriptors */
close_low_fds(False);
am_parent = 0;
-
+
set_socket_options(smbd_server_fd(),"SO_KEEPALIVE");
set_socket_options(smbd_server_fd(),user_socket_options);
-
+
/* this is needed so that we get decent entries
in smbstatus for port 445 connects */
- set_remote_machine_name(get_peer_addr(smbd_server_fd()),
+ set_remote_machine_name(get_peer_addr(smbd_server_fd(),remaddr),
False);
-
+
/* Reset the state of the random
* number generation system, so
* children do not get the same random
* CLEAR_IF_FIRST flags */
if (tdb_reopen_all(1) == -1) {
DEBUG(0,("tdb_reopen_all failed.\n"));
- smb_panic("tdb_reopen_all failed.");
+ smb_panic("tdb_reopen_all failed");
}
- return True;
+ return True;
}
/* The parent doesn't need this socket */
- close(smbd_server_fd());
+ close(smbd_server_fd());
/* Sun May 6 18:56:14 2001 ackley@cs.unm.edu:
Clear the closed fd info out of server_fd --
* (ca. 100kb).
* */
force_check_log_size();
-
+
} /* end for num */
} /* end while 1 */
Reload the services file.
**************************************************************************/
-BOOL reload_services(BOOL test)
+bool reload_services(bool test)
{
- BOOL ret;
+ bool ret;
if (lp_loaded()) {
pstring fname;
locking_end();
printing_end();
- server_encryption_shutdown();
-
if (how != SERVER_EXIT_NORMAL) {
int oldlevel = DEBUGLEVEL;
- char *last_inbuf = get_InBuffer();
DEBUGLEVEL = 10;
DEBUGSEP(0);
log_stack_trace();
- if (last_inbuf) {
- DEBUG(0,("Last message was %s\n", LAST_MESSAGE()));
- show_msg(last_inbuf);
- }
DEBUGLEVEL = oldlevel;
dump_core();
Initialise connect, service and file structs.
****************************************************************************/
-static BOOL init_structs(void )
+static bool init_structs(void )
{
/*
* Set the machine NETBIOS name if not already
/*
* Send keepalive packets to our client
*/
-static BOOL keepalive_fn(const struct timeval *now, void *private_data)
+static bool keepalive_fn(const struct timeval *now, void *private_data)
{
if (!send_keepalive(smbd_server_fd())) {
DEBUG( 2, ( "Keepalive failed - exiting.\n" ) );
/*
* Do the recurring check if we're idle
*/
-static BOOL deadtime_fn(const struct timeval *now, void *private_data)
+static bool deadtime_fn(const struct timeval *now, void *private_data)
{
if ((conn_num_open() == 0)
|| (conn_idle_all(now->tv_sec))) {
mkproto.h. Mixing $(builddir) and $(srcdir) source files in the current
prototype generation system is too complicated. */
-extern void build_options(BOOL screen);
+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;
-
- enum smb_server_mode server_mode = SERVER_MODE_DAEMON;
-
+ bool print_build_options = False;
+ enum {
+ OPT_DAEMON = 1000,
+ OPT_INTERACTIVE,
+ OPT_FORK,
+ OPT_NO_PROCESS_GROUP,
+ OPT_LOG_STDOUT
+ };
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" },
- {"log-stdout", 'S', POPT_ARG_VAL, &log_stdout, True, "Log to stdout" },
+ {"daemon", 'D', POPT_ARG_NONE, NULL, OPT_DAEMON, "Become a daemon (default)" },
+ {"interactive", 'i', POPT_ARG_NONE, NULL, OPT_INTERACTIVE, "Run interactive (not a daemon)"},
+ {"foreground", 'F', POPT_ARG_NONE, NULL, OPT_FORK, "Run daemon in foreground (for daemontools, etc.)" },
+ {"no-process-group", '\0', POPT_ARG_NONE, NULL, OPT_NO_PROCESS_GROUP, "Don't create a new process group" },
+ {"log-stdout", 'S', POPT_ARG_NONE, NULL, OPT_LOG_STDOUT, "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"},
{"profiling-level", 'P', POPT_ARG_STRING, &profile_level, 0, "Set profiling level","PROFILE_LEVEL"},
#endif
pc = poptGetContext("smbd", argc, argv, long_options, 0);
-
while((opt = poptGetNextOpt(pc)) != -1) {
switch (opt) {
+ case OPT_DAEMON:
+ is_daemon = true;
+ break;
+ case OPT_INTERACTIVE:
+ interactive = true;
+ break;
+ case OPT_FORK:
+ Fork = false;
+ break;
+ case OPT_NO_PROCESS_GROUP:
+ no_process_group = true;
+ break;
+ case OPT_LOG_STDOUT:
+ log_stdout = true;
+ break;
case 'b':
- build_options(True); /* Display output to screen as well as debug */
- exit(0);
+ print_build_options = True;
break;
+ default:
+ d_fprintf(stderr, "\nInvalid option %s: %s\n\n",
+ poptBadOption(pc, 0), poptStrerror(opt));
+ poptPrintUsage(pc, stderr, 0);
+ exit(1);
}
}
-
poptFreeContext(pc);
+ if (print_build_options) {
+ build_options(True); /* Display output to screen as well as debug */
+ exit(0);
+ }
+
#ifdef HAVE_SETLUID
/* needed for SecureWare on SCO */
setluid(0);
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);
}
reopen_logs();
- DEBUG(0,( "smbd version %s started.\n", SAMBA_VERSION_STRING));
- DEBUGADD( 0, ( "%s\n", COPYRIGHT_STARTUP_MESSAGE ) );
+ DEBUG(0,("smbd version %s started.\n", SAMBA_VERSION_STRING));
+ DEBUGADD(0,("%s\n", COPYRIGHT_STARTUP_MESSAGE));
DEBUG(2,("uid=%d gid=%d euid=%d egid=%d\n",
(int)getuid(),(int)getgid(),(int)geteuid(),(int)getegid()));
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
* 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. */
return -1;
}
- /* Setup the main smbd so that we can get messages. */
- /* don't worry about general printing messages here */
-
- claim_connection(NULL,"",FLAG_MSG_GENERAL|FLAG_MSG_SMBD);
-
/* only start the background queue daemon if we are
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
*/
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()
/* 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);
}
/* Setup aio signal handler. */
initialize_async_io_handler();
+ /*
+ * For clustering, we need to re-init our ctdbd connection after the
+ * fork
+ */
+ if (!NT_STATUS_IS_OK(messaging_reinit(smbd_messaging_context())))
+ exit(1);
+
/* register our message handlers */
messaging_register(smbd_messaging_context(), NULL,
MSG_SMB_FORCE_TDIS, msg_force_tdis);