NBT netbios routines and daemon - version 2
Copyright (C) Andrew Tridgell 1994-1998
Copyright (C) Jeremy Allison 1997-2002
+ Copyright (C) Jelmer Vernooij 2002 (Conversion to popt)
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
int ClientDGRAM = -1;
int global_nmb_port = -1;
-extern pstring global_myname;
-extern fstring global_myworkgroup;
-extern char **my_netbios_names;
-
extern BOOL global_in_nmbd;
/* are we running as a daemon ? */
static BOOL is_daemon = False;
+/* fork or run in foreground ? */
+static BOOL Fork = True;
+
+/* log to standard output ? */
+static BOOL log_stdout = False;
+
/* have we found LanMan clients yet? */
BOOL found_lm_clients = False;
/* Write out wins.dat file if samba is a WINS server */
wins_write_database(False);
- /* Remove all SELF registered names. */
- release_my_names();
+ /* Remove all SELF registered names from WINS */
+ release_wins_names();
/* Announce all server entries as 0 time-to-live, 0 type. */
announce_my_servers_removed();
Catch a SIGTERM signal.
**************************************************************************** */
-static VOLATILE sig_atomic_t got_sig_term;
+static SIG_ATOMIC_T got_sig_term;
static void sig_term(int sig)
{
Catch a SIGHUP signal.
**************************************************************************** */
-static VOLATILE sig_atomic_t reload_after_sighup;
+static SIG_ATOMIC_T reload_after_sighup;
static void sig_hup(int sig)
{
sys_select_signal();
}
+/*******************************************************************
+ Print out all talloc memory info.
+********************************************************************/
+
+void return_all_talloc_info(int msg_type, pid_t src_pid, void *buf, size_t len)
+{
+ TALLOC_CTX *ctx = talloc_init("info context");
+ char *info = NULL;
+
+ if (!ctx)
+ return;
+
+ info = talloc_describe_all(ctx);
+ if (info)
+ DEBUG(10,(info));
+ message_send_pid(src_pid, MSG_TALLOC_USAGE, info, info ? strlen(info) + 1 : 0, True);
+ talloc_destroy(ctx);
+}
+
#if DUMP_CORE
/**************************************************************************** **
Prepare to dump a core file - carefully!
static BOOL reload_nmbd_services(BOOL test)
{
BOOL ret;
- extern fstring remote_machine;
- fstrcpy( remote_machine, "nmbd" );
+ set_remote_machine_name("nmbd");
if ( lp_loaded() ) {
pstring fname;
reload_nmbd_services( True );
}
- /* Do a sanity check for a misconfigured nmbd */
- if( lp_wins_support() && wins_srv_count() ) {
- if( DEBUGLVL(0) ) {
- dbgtext( "ERROR: 'wins support = true' and 'wins server = <server>'\n" );
- dbgtext( "are conflicting settings. nmbd aborting.\n" );
- }
- exit(10);
- }
-
return(ret);
}
return( True );
}
-/**************************************************************************** **
- Initialise connect, service and file structs.
- **************************************************************************** */
-
-static BOOL init_structs(void)
-{
- extern fstring local_machine;
- char *p, **ptr;
- int namecount;
- int n;
- int nodup;
- char *nbname;
-
- if (! *global_myname)
- {
- fstrcpy( global_myname, myhostname() );
- p = strchr_m( global_myname, '.' );
- if (p)
- *p = 0;
- }
- strupper( global_myname );
-
- /* Add any NETBIOS name aliases. Ensure that the first entry
- is equal to global_myname.
- */
- /* Work out the max number of netbios aliases that we have */
- ptr = lp_netbios_aliases();
- namecount = 0;
- if (ptr)
- for( ; *ptr; namecount++,ptr++ )
- ;
- if ( *global_myname )
- namecount++;
-
- /* Allocate space for the netbios aliases */
- my_netbios_names = (char **)malloc( sizeof(char *) * (namecount+1) );
- if( NULL == my_netbios_names )
- {
- DEBUG( 0, ( "init_structs: malloc fail.\n" ) );
- return( False );
- }
-
- /* Use the global_myname string first */
- namecount=0;
- if ( *global_myname )
- my_netbios_names[namecount++] = global_myname;
-
- ptr = lp_netbios_aliases();
- if (ptr)
- {
- while ( *ptr )
- {
- nbname = strdup(*ptr);
- if (nbname == NULL)
- {
- DEBUG(0,("init_structs: malloc fail when allocating names.\n"));
- return False;
- }
- strupper( nbname );
- /* Look for duplicates */
- nodup=1;
- for( n=0; n<namecount; n++ )
- {
- if( 0 == strcmp( nbname, my_netbios_names[n] ) )
- nodup=0;
- }
- if (nodup)
- my_netbios_names[namecount++] = nbname;
- else
- SAFE_FREE(nbname);
-
- ptr++;
- }
- }
-
- /* Terminate name list */
- my_netbios_names[namecount++] = NULL;
-
- fstrcpy( local_machine, global_myname );
- trim_string( local_machine, " ", " " );
- p = strchr_m( local_machine, ' ' );
- if (p)
- *p = 0;
- strlower( local_machine );
-
- DEBUG( 5, ("Netbios name list:-\n") );
- for( n=0; my_netbios_names[n]; n++ )
- DEBUGADD( 5, ( "my_netbios_names[%d]=\"%s\"\n", n, my_netbios_names[n] ) );
-
- return( True );
-}
-
-/**************************************************************************** **
- Usage on the program.
- **************************************************************************** */
-
-static void usage(char *pname)
-{
-
- printf( "Usage: %s [-DaiohV] [-H lmhosts file] [-d debuglevel] [-l log basename]\n", pname );
- printf( " [-n name] [-p port] [-s configuration file]\n" );
- printf( "\t-D Become a daemon (default)\n" );
- printf( "\t-a Append to log file (default)\n" );
- printf( "\t-i Run interactive (not a daemon)\n" );
- printf( "\t-o Overwrite log file, don't append\n" );
- printf( "\t-h Print usage\n" );
- printf( "\t-V Print version\n" );
- printf( "\t-H hosts file Load a netbios hosts file\n" );
- printf( "\t-d debuglevel Set the debuglevel\n" );
- printf( "\t-l log basename. Basename for log/debug files\n" );
- printf( "\t-n netbiosname. Primary netbios name\n" );
- printf( "\t-p port Listen on the specified port\n" );
- printf( "\t-s configuration file Configuration file name\n" );
- printf( "\n");
-}
-
-
/**************************************************************************** **
main program
**************************************************************************** */
- int main(int argc,char *argv[])
+ int main(int argc, const char *argv[])
{
- int opt;
- extern char *optarg;
- extern BOOL append_log;
- BOOL opt_interactive = False;
- pstring logfile;
-
- append_log = True; /* Default, override with '-o' option. */
+ static BOOL opt_interactive = False;
+ poptContext pc;
+ struct poptOption long_options[] = {
+ POPT_AUTOHELP
+ {"daemon", 'D', POPT_ARG_VAL, &is_daemon, True, "Become a daemon(default)" },
+ {"interactive", 'i', POPT_ARG_VAL, &opt_interactive, True, "Run interactive (not a daemon)" },
+ {"foreground", 'F', POPT_ARG_VAL, &Fork, False, "Run daemon in foreground (for daemontools & etc)" },
+ {"log-stdout", 'S', POPT_ARG_VAL, &log_stdout, True, "Log to stdout" },
+ {"hosts", 'H', POPT_ARG_STRING, dyn_LMHOSTSFILE, 'H', "Load a netbios hosts file"},
+ {"port", 'p', POPT_ARG_INT, &global_nmb_port, NMB_PORT, "Listen on the specified port" },
+ {NULL, 0, POPT_ARG_INCLUDE_TABLE, popt_common_debug },
+ {NULL, 0, POPT_ARG_INCLUDE_TABLE, popt_common_configfile },
+ {NULL, 0, POPT_ARG_INCLUDE_TABLE, popt_common_socket_options },
+ {NULL, 0, POPT_ARG_INCLUDE_TABLE, popt_common_version },
+ {NULL, 0, POPT_ARG_INCLUDE_TABLE, popt_common_netbios_name },
+ {NULL, 0, POPT_ARG_INCLUDE_TABLE, popt_common_log_base },
+ { NULL }
+ };
+ int opt;
+ pstring logfile;
global_nmb_port = NMB_PORT;
global_in_nmbd = True;
slprintf(logfile, sizeof(logfile)-1, "%s/log.nmbd", dyn_LOGFILEBASE);
lp_set_logfile(logfile);
- /* this is for people who can't start the program correctly */
- while (argc > 1 && (*argv[1] != '-'))
- {
- argv++;
- argc--;
- }
-
fault_setup((void (*)(void *))fault_continue );
/* POSIX demands that signals are inherited. If the invoking process has
#if defined(SIGUSR2)
BlockSignals(True, SIGUSR2);
#endif
+ pc = poptGetContext("nmbd", argc, argv, long_options, 0);
+
+ while((opt = poptGetNextOpt(pc)) != -1)
+ { }
+
+ poptFreeContext(pc);
+
+ if ( opt_interactive ) {
+ Fork = False;
+ log_stdout = True;
+ }
+
+ 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);
+ }
- while( EOF !=
- (opt = getopt( argc, argv, "Vaos:T:I:C:bAB:N:Rn:l:d:Dp:hSH:G:f:i" )) )
- {
- switch (opt)
- {
- case 's':
- pstrcpy(dyn_CONFIGFILE, optarg);
- break;
- case 'N':
- case 'B':
- case 'I':
- case 'C':
- case 'G':
- DEBUG(0,("Obsolete option '%c' used\n",opt));
- break;
- case 'i':
- opt_interactive = True;
- break;
- case 'H':
- pstrcpy(dyn_LMHOSTSFILE, optarg);
- break;
- case 'n':
- pstrcpy(global_myname,optarg);
- strupper(global_myname);
- break;
- case 'l':
- slprintf(logfile, sizeof(logfile)-1, "%s/log.nmbd", optarg);
- lp_set_logfile(logfile);
- break;
- case 'a':
- append_log = True;
- break;
- case 'o':
- append_log = False;
- break;
- case 'D':
- is_daemon = True;
- break;
- case 'd':
- DEBUGLEVEL = atoi(optarg);
- break;
- case 'p':
- global_nmb_port = atoi(optarg);
- break;
- case 'h':
- usage(argv[0]);
- exit(0);
- break;
- case 'V':
- printf( "Version %s\n", VERSION );
- exit(0);
- break;
- default:
- if( !is_a_socket(0) )
- {
- DEBUG(0,("Incorrect program usage - is the command line correct?\n"));
- usage(argv[0]);
- exit(0);
- }
- break;
- }
- }
-
- setup_logging( argv[0], opt_interactive );
+ setup_logging( argv[0], log_stdout );
reopen_logs();
if ( !reload_nmbd_services(False) )
return(-1);
- if(!init_structs())
+ if(!init_names())
return -1;
reload_nmbd_services( True );
- fstrcpy( global_myworkgroup, lp_workgroup() );
-
- if (strequal(global_myworkgroup,"*"))
+ if (strequal(lp_workgroup(),"*"))
{
DEBUG(0,("ERROR: a workgroup name of * is no longer supported\n"));
exit(1);
if (is_daemon && !opt_interactive)
{
DEBUG( 2, ( "Becoming a daemon.\n" ) );
- become_daemon();
+ become_daemon(Fork);
}
#if HAVE_SETPGID
#ifndef SYNC_DNS
/* Setup the async dns. We do it here so it doesn't have all the other
stuff initialised and thus chewing memory and sockets */
- if(lp_we_are_a_wins_server()) {
+ if(lp_we_are_a_wins_server() && lp_dns_proxy()) {
start_async_dns();
}
#endif
message_register(MSG_FORCE_ELECTION, nmbd_message_election);
message_register(MSG_WINS_NEW_ENTRY, nmbd_wins_new_entry);
message_register(MSG_SHUTDOWN, nmbd_terminate);
+ message_register(MSG_REQ_TALLOC_USAGE, return_all_talloc_info);
DEBUG( 3, ( "Opening sockets %d\n", global_nmb_port ) );
- if ( !open_sockets( is_daemon, global_nmb_port ) )
+ if ( !open_sockets( is_daemon, global_nmb_port ) ) {
+ kill_async_dns_child();
return 1;
+ }
/* Determine all the IP addresses we have. */
load_interfaces();
if( False == create_subnets() )
{
DEBUG(0,("ERROR: Failed when creating subnet lists. Exiting.\n"));
+ kill_async_dns_child();
exit(1);
}
if( !initialise_wins() )
{
DEBUG( 0, ( "nmbd: Failed when initialising WINS server.\n" ) );
+ kill_async_dns_child();
exit(1);
}
if( False == register_my_workgroup_and_names() )
{
DEBUG(0,("ERROR: Failed when creating my my workgroup. Exiting.\n"));
+ kill_async_dns_child();
exit(1);
}
if (dbf)
x_fclose(dbf);
+ kill_async_dns_child();
return(0);
}
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