diff options
| -rw-r--r-- | src/util/server.c | 224 |
1 files changed, 114 insertions, 110 deletions
diff --git a/src/util/server.c b/src/util/server.c index f3f1b201..ccb3f3be 100644 --- a/src/util/server.c +++ b/src/util/server.c @@ -3,11 +3,11 @@ Servers setup routines - Copyright (C) Andrew Tridgell 1992-2005 - Copyright (C) Martin Pool 2002 - Copyright (C) Jelmer Vernooij 2002 - Copyright (C) James J Myers 2003 <myersjj@samba.org> - Copyright (C) Simo Sorce 2008 + Copyright (C) Andrew Tridgell 1992-2005 + Copyright (C) Martin Pool 2002 + Copyright (C) Jelmer Vernooij 2002 + Copyright (C) James J Myers 2003 <myersjj@samba.org> + Copyright (C) Simo Sorce 2008 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 @@ -42,28 +42,28 @@ static void close_low_fds(void) { #ifndef VALGRIND - int fd; - int i; - - close(0); - close(1); - close(2); - - /* try and use up these file descriptors, so silly - library routines writing to stdout etc won't cause havoc */ - for (i=0;i<3;i++) { - fd = open("/dev/null",O_RDWR,0); - if (fd < 0) - fd = open("/dev/null",O_WRONLY,0); - if (fd < 0) { - DEBUG(0,("Can't open /dev/null\n")); - return; - } - if (fd != i) { - DEBUG(0,("Didn't get file descriptor %d\n",i)); - return; - } - } + int fd; + int i; + + close(0); + close(1); + close(2); + + /* try and use up these file descriptors, so silly + library routines writing to stdout etc won't cause havoc */ + for (i = 0; i < 3; i++) { + fd = open("/dev/null", O_RDWR, 0); + if (fd < 0) + fd = open("/dev/null", O_WRONLY, 0); + if (fd < 0) { + DEBUG(SSSDBG_FATAL_FAILURE, ("Can't open /dev/null\n")); + return; + } + if (fd != i) { + DEBUG(SSSDBG_FATAL_FAILURE, ("Didn't get file descriptor %d\n",i)); + return; + } + } #endif } @@ -73,28 +73,28 @@ static void close_low_fds(void) void become_daemon(bool Fork) { - int ret; + int ret; - if (Fork) { - if (fork()) { - _exit(0); - } - } + if (Fork) { + if (fork()) { + _exit(0); + } + } /* detach from the terminal */ - setsid(); + setsid(); - /* chdir to / to be sure we're not on a remote filesystem */ - errno = 0; - if(chdir("/") == -1) { - ret = errno; - DEBUG(0, ("Cannot change directory (%d [%s])\n", - ret, strerror(ret))); - return; - } + /* chdir to / to be sure we're not on a remote filesystem */ + errno = 0; + if(chdir("/") == -1) { + ret = errno; + DEBUG(SSSDBG_FATAL_FAILURE, ("Cannot change directory (%d [%s])\n", + ret, strerror(ret))); + return; + } - /* Close fd's 0,1,2. Needed if started by rsh */ - close_low_fds(); + /* Close fd's 0,1,2. Needed if started by rsh */ + close_low_fds(); } int pidfile(const char *path, const char *name) @@ -196,19 +196,19 @@ int pidfile(const char *path, const char *name) static void sig_hup(int sig) { - /* cycle log/debug files */ - return; + /* cycle log/debug files */ + return; } void sig_term(int sig) { #if HAVE_GETPGRP - static int done_sigterm; - if (done_sigterm == 0 && getpgrp() == getpid()) { - DEBUG(0,("SIGTERM: killing children\n")); - done_sigterm = 1; - kill(-getpgrp(), SIGTERM); - } + static int done_sigterm; + if (done_sigterm == 0 && getpgrp() == getpid()) { + DEBUG(SSSDBG_FATAL_FAILURE, ("SIGTERM: killing children\n")); + done_sigterm = 1; + kill(-getpgrp(), SIGTERM); + } #endif sss_log(SSS_LOG_INFO, "Shutting down"); exit(0); @@ -224,7 +224,7 @@ static void default_quit(struct tevent_context *ev, #if HAVE_GETPGRP static int done_sigterm; if (done_sigterm == 0 && getpgrp() == getpid()) { - DEBUG(0,("SIGTERM: killing children\n")); + DEBUG(SSSDBG_FATAL_FAILURE, ("SIGTERM: killing children\n")); done_sigterm = 1; kill(-getpgrp(), SIGTERM); } @@ -237,12 +237,13 @@ static void default_quit(struct tevent_context *ev, static void sig_segv_abrt(int sig) { #if HAVE_GETPGRP - static int done; - if (done == 0 && getpgrp() == getpid()) { - DEBUG(0,("%s: killing children\n", strsignal(sig))); - done = 1; - kill(-getpgrp(), SIGTERM); - } + static int done; + if (done == 0 && getpgrp() == getpid()) { + DEBUG(SSSDBG_FATAL_FAILURE, ("%s: killing children\n", + strsignal(sig))); + done = 1; + kill(-getpgrp(), SIGTERM); + } #endif /* HAVE_GETPGRP */ exit(1); } @@ -253,37 +254,37 @@ static void sig_segv_abrt(int sig) */ static void setup_signals(void) { - /* we are never interested in SIGPIPE */ - BlockSignals(true, SIGPIPE); + /* we are never interested in SIGPIPE */ + BlockSignals(true, SIGPIPE); #if defined(SIGFPE) - /* we are never interested in SIGFPE */ - BlockSignals(true, SIGFPE); + /* we are never interested in SIGFPE */ + BlockSignals(true, SIGFPE); #endif - /* We are no longer interested in USR1 */ - BlockSignals(true, SIGUSR1); + /* We are no longer interested in USR1 */ + BlockSignals(true, SIGUSR1); - /* We are no longer interested in SIGINT except for monitor */ - BlockSignals(true, SIGINT); + /* We are no longer interested in SIGINT except for monitor */ + BlockSignals(true, SIGINT); #if defined(SIGUSR2) - /* We are no longer interested in USR2 */ - BlockSignals(true, SIGUSR2); + /* We are no longer interested in USR2 */ + BlockSignals(true, SIGUSR2); #endif - /* POSIX demands that signals are inherited. If the invoking process has - * these signals masked, we will have problems, as we won't recieve them. */ - BlockSignals(false, SIGHUP); - BlockSignals(false, SIGTERM); + /* POSIX demands that signals are inherited. If the invoking process has + * these signals masked, we will have problems, as we won't recieve them. */ + BlockSignals(false, SIGHUP); + BlockSignals(false, SIGTERM); - CatchSignal(SIGHUP, sig_hup); + CatchSignal(SIGHUP, sig_hup); #ifndef HAVE_PRCTL /* If prctl is not defined on the system, try to handle * some common termination signals gracefully */ - CatchSignal(SIGSEGV, sig_segv_abrt); - CatchSignal(SIGABRT, sig_segv_abrt); + CatchSignal(SIGSEGV, sig_segv_abrt); + CatchSignal(SIGABRT, sig_segv_abrt); #endif } @@ -295,19 +296,20 @@ static void server_stdin_handler(struct tevent_context *event_ctx, struct tevent_fd *fde, uint16_t flags, void *private) { - const char *binary_name = (const char *)private; - uint8_t c; + const char *binary_name = (const char *)private; + uint8_t c; - errno = 0; - if (sss_atomic_read_s(0, &c, 1) == 0) { - DEBUG(SSSDBG_CRIT_FAILURE,("%s: EOF on stdin - terminating\n", binary_name)); + errno = 0; + if (sss_atomic_read_s(0, &c, 1) == 0) { + DEBUG(SSSDBG_CRIT_FAILURE, ("%s: EOF on stdin - terminating\n", + binary_name)); #if HAVE_GETPGRP - if (getpgrp() == getpid()) { - kill(-getpgrp(), SIGTERM); - } + if (getpgrp() == getpid()) { + kill(-getpgrp(), SIGTERM); + } #endif - exit(0); - } + exit(0); + } } /* @@ -323,7 +325,8 @@ int die_if_parent_died(void) ret = prctl(PR_SET_PDEATHSIG, SIGTERM, 0, 0, 0); if (ret != 0) { ret = errno; - DEBUG(2, ("prctl failed [%d]: %s", ret, strerror(ret))); + DEBUG(SSSDBG_OP_FAILURE, ("prctl failed [%d]: %s", + ret, strerror(ret))); return ret; } #endif @@ -346,12 +349,12 @@ static void te_server_hup(struct tevent_context *ev, struct logrotate_ctx *lctx = talloc_get_type(private_data, struct logrotate_ctx); - DEBUG(1, ("Received SIGHUP. Rotating logfiles.\n")); + DEBUG(SSSDBG_CRIT_FAILURE, ("Received SIGHUP. Rotating logfiles.\n")); ret = monitor_common_rotate_logs(lctx->confdb, lctx->confdb_path); if (ret != EOK) { - DEBUG(0, ("Could not reopen log file [%s]\n", - strerror(ret))); + DEBUG(SSSDBG_FATAL_FAILURE, ("Could not reopen log file [%s]\n", + strerror(ret))); } } @@ -384,29 +387,30 @@ int server_setup(const char *name, int flags, umask(0177); if (flags & FLAGS_DAEMON) { - DEBUG(3,("Becoming a daemon.\n")); + DEBUG(SSSDBG_IMPORTANT_INFO, ("Becoming a daemon.\n")); become_daemon(true); } if (flags & FLAGS_PID_FILE) { ret = pidfile(PID_PATH, name); if (ret != EOK) { - DEBUG(SSSDBG_FATAL_FAILURE, ("Error creating pidfile: %s/%s! (%d [%s])\n", - PID_PATH, name, ret, strerror(ret))); + DEBUG(SSSDBG_FATAL_FAILURE, ("Error creating pidfile: %s/%s! " + "(%d [%s])\n", PID_PATH, name, ret, strerror(ret))); return ret; } } /* Set up locale */ - setlocale (LC_ALL, ""); - bindtextdomain (PACKAGE, LOCALEDIR); - textdomain (PACKAGE); + setlocale(LC_ALL, ""); + bindtextdomain(PACKAGE, LOCALEDIR); + textdomain(PACKAGE); /* the event context is the top level structure. * Everything else should hang off that */ event_ctx = tevent_context_init(talloc_autofree_context()); if (event_ctx == NULL) { - DEBUG(0,("The event context initialiaziton failed\n")); + DEBUG(SSSDBG_FATAL_FAILURE, + ("The event context initialiaziton failed\n")); return 1; } @@ -426,7 +430,7 @@ int server_setup(const char *name, int flags, ctx = talloc(event_ctx, struct main_context); if (ctx == NULL) { - DEBUG(0,("Out of memory, aborting!\n")); + DEBUG(SSSDBG_FATAL_FAILURE, ("Out of memory, aborting!\n")); return ENOMEM; } @@ -434,13 +438,13 @@ int server_setup(const char *name, int flags, conf_db = talloc_asprintf(ctx, "%s/%s", DB_PATH, CONFDB_FILE); if (conf_db == NULL) { - DEBUG(0,("Out of memory, aborting!\n")); + DEBUG(SSSDBG_FATAL_FAILURE, ("Out of memory, aborting!\n")); return ENOMEM; } ret = confdb_init(ctx, &ctx->confdb_ctx, conf_db); if (ret != EOK) { - DEBUG(0,("The confdb initialization failed\n")); + DEBUG(SSSDBG_FATAL_FAILURE, ("The confdb initialization failed\n")); return ret; } @@ -451,8 +455,8 @@ int server_setup(const char *name, int flags, SSSDBG_DEFAULT, &debug_level); if (ret != EOK) { - DEBUG(0, ("Error reading from confdb (%d) [%s]\n", - ret, strerror(ret))); + DEBUG(SSSDBG_FATAL_FAILURE, ("Error reading from confdb (%d) " + "[%s]\n", ret, strerror(ret))); return ret; } @@ -466,8 +470,8 @@ int server_setup(const char *name, int flags, SSSDBG_TIMESTAMP_DEFAULT, &dt); if (ret != EOK) { - DEBUG(0, ("Error reading from confdb (%d) [%s]\n", - ret, strerror(ret))); + DEBUG(SSSDBG_FATAL_FAILURE, ("Error reading from confdb (%d) " + "[%s]\n", ret, strerror(ret))); return ret; } if (dt) debug_timestamps = 1; @@ -481,8 +485,8 @@ int server_setup(const char *name, int flags, SSSDBG_MICROSECONDS_DEFAULT, &dm); if (ret != EOK) { - DEBUG(0, ("Error reading from confdb (%d) [%s]\n", - ret, strerror(ret))); + DEBUG(SSSDBG_FATAL_FAILURE, ("Error reading from confdb (%d) " + "[%s]\n", ret, strerror(ret))); return ret; } if (dm) debug_microseconds = 1; @@ -495,8 +499,8 @@ int server_setup(const char *name, int flags, CONFDB_SERVICE_DEBUG_TO_FILES, dl, &dl); if (ret != EOK) { - DEBUG(0, ("Error reading from confdb (%d) [%s]\n", - ret, strerror(ret))); + DEBUG(SSSDBG_FATAL_FAILURE, ("Error reading from confdb (%d) [%s]\n", + ret, strerror(ret))); return ret; } if (dl) debug_to_file = 1; @@ -518,8 +522,8 @@ int server_setup(const char *name, int flags, if (debug_to_file) { ret = open_debug_file(); if (ret != EOK) { - DEBUG(0, ("Error setting up logging (%d) [%s]\n", - ret, strerror(ret))); + DEBUG(SSSDBG_FATAL_FAILURE, ("Error setting up logging (%d) " + "[%s]\n", ret, strerror(ret))); return ret; } } |