-/*
+/*
Unix SMB/CIFS implementation.
Winbind daemon for ntdom nss module
#include "serverid.h"
#include "auth.h"
#include "messages.h"
+#include "../lib/util/pidfile.h"
+#include "util_cluster.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
extern bool override_logfile;
+struct tevent_context *winbind_event_context(void)
+{
+ static struct tevent_context *ev = NULL;
+
+ if (ev != NULL) {
+ return ev;
+ }
+
+ /*
+ * Note we MUST use the NULL context here, not the autofree context,
+ * to avoid side effects in forked children exiting.
+ */
+ ev = samba_tevent_context_init(NULL);
+ if (ev == NULL) {
+ smb_panic("Could not init winbindd's messaging context.\n");
+ }
+ return ev;
+}
+
struct messaging_context *winbind_messaging_context(void)
{
- struct messaging_context *msg_ctx = server_messaging_context();
- if (likely(msg_ctx != NULL)) {
- return msg_ctx;
+ static struct messaging_context *msg = NULL;
+
+ if (msg != NULL) {
+ return msg;
+ }
+
+ /*
+ * Note we MUST use the NULL context here, not the autofree context,
+ * to avoid side effects in forked children exiting.
+ */
+ msg = messaging_init(NULL, winbind_event_context());
+ if (msg == NULL) {
+ smb_panic("Could not init winbindd's messaging context.\n");
}
- smb_panic("Could not init winbindd's messaging context.\n");
- return NULL;
+ return msg;
}
/* Reload configuration */
bool ret;
if (lp_loaded()) {
- const char *fname = lp_configfile();
+ char *fname = lp_configfile(talloc_tos());
if (file_exist(fname) && !strcsequal(fname,get_dyn_CONFIGFILE())) {
set_dyn_CONFIGFILE(fname);
}
+ TALLOC_FREE(fname);
}
/* if this is a child, restore the logfile to the special
}
reopen_logs();
- ret = lp_load(get_dyn_CONFIGFILE(),False,False,True,True);
+ ret = lp_load_global(get_dyn_CONFIGFILE());
reopen_logs();
load_interfaces();
char *path = NULL;
if (asprintf(&path, "%s/%s",
- get_winbind_pipe_dir(), WINBINDD_SOCKET_NAME) > 0) {
+ lp_winbindd_socket_directory(), WINBINDD_SOCKET_NAME) > 0) {
unlink(path);
SAFE_FREE(path);
}
#endif
if (is_parent) {
- serverid_deregister(procid_self());
- pidfile_unlink();
+ struct messaging_context *msg = winbind_messaging_context();
+ struct server_id self = messaging_server_id(msg);
+ serverid_deregister(self);
+ pidfile_unlink(lp_piddir(), "winbindd");
}
exit(0);
terminate(*is_parent);
}
+/*
+ handle stdin becoming readable when we are in --foreground mode
+ */
+static void winbindd_stdin_handler(struct tevent_context *ev,
+ struct tevent_fd *fde,
+ uint16_t flags,
+ void *private_data)
+{
+ char c;
+ if (read(0, &c, 1) != 1) {
+ bool *is_parent = talloc_get_type_abort(private_data, bool);
+
+ /* we have reached EOF on stdin, which means the
+ parent has exited. Shutdown the server */
+ DEBUG(0,("EOF on stdin (is_parent=%d)\n",
+ (int)*is_parent));
+ terminate(*is_parent);
+ }
+}
+
bool winbindd_setup_sig_term_handler(bool parent)
{
struct tevent_signal *se;
return true;
}
+bool winbindd_setup_stdin_handler(bool parent, bool foreground)
+{
+ bool *is_parent;
+
+ if (foreground) {
+ struct stat st;
+
+ is_parent = talloc(winbind_event_context(), bool);
+ if (!is_parent) {
+ return false;
+ }
+
+ *is_parent = parent;
+
+ /* if we are running in the foreground then look for
+ EOF on stdin, and exit if it happens. This allows
+ us to die if the parent process dies
+ Only do this on a pipe or socket, no other device.
+ */
+ if (fstat(0, &st) != 0) {
+ return false;
+ }
+ if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode)) {
+ tevent_add_fd(winbind_event_context(),
+ is_parent,
+ 0,
+ TEVENT_FD_READ,
+ winbindd_stdin_handler,
+ is_parent);
+ }
+ }
+
+ return true;
+}
+
static void winbindd_sig_hup_handler(struct tevent_context *ev,
struct tevent_signal *se,
int signum,
* so we don't block the main winbindd and the validation
* code can safely use fork/waitpid...
*/
- child_pid = sys_fork();
+ child_pid = fork();
if (child_pid == -1) {
DEBUG(1, ("winbind_msg_validate_cache: Could not fork: %s\n",
state->cmd_name = "unknown request";
state->recv_fn = NULL;
+ state->last_access = time(NULL);
/* Process command */
if (sock == -1) {
if (errno != EINTR) {
- DEBUG(0, ("Faild to accept socket - %s\n",
+ DEBUG(0, ("Failed to accept socket - %s\n",
strerror(errno)));
}
return;
/* Is a client idle? */
static bool client_is_idle(struct winbindd_cli_state *state) {
- return (state->response == NULL &&
+ return (state->request == NULL &&
+ state->response == NULL &&
!state->pwent_state && !state->grent_state);
}
* Winbindd socket accessor functions
*/
-const char *get_winbind_pipe_dir(void)
-{
- return lp_parm_const_string(-1, "winbindd", "socket dir", get_dyn_WINBINDD_SOCKET_DIR());
-}
-
char *get_winbind_priv_pipe_dir(void)
{
return state_path(WINBINDD_PRIV_SOCKET_SUBDIR);
struct winbindd_listen_state *pub_state = NULL;
struct winbindd_listen_state *priv_state = NULL;
struct tevent_fd *fde;
+ int rc;
pub_state = talloc(winbind_event_context(),
struct winbindd_listen_state);
pub_state->privileged = false;
pub_state->fd = create_pipe_sock(
- get_winbind_pipe_dir(), WINBINDD_SOCKET_NAME, 0755);
+ lp_winbindd_socket_directory(), WINBINDD_SOCKET_NAME, 0755);
if (pub_state->fd == -1) {
goto failed;
}
+ rc = listen(pub_state->fd, 5);
+ if (rc < 0) {
+ goto failed;
+ }
fde = tevent_add_fd(winbind_event_context(), pub_state, pub_state->fd,
TEVENT_FD_READ, winbindd_listen_fde_handler,
if (priv_state->fd == -1) {
goto failed;
}
+ rc = listen(priv_state->fd, 5);
+ if (rc < 0) {
+ goto failed;
+ }
fde = tevent_add_fd(winbind_event_context(), priv_state,
priv_state->fd, TEVENT_FD_READ,
return !opt_nocache;
}
-void winbindd_register_handlers(void)
+static void winbindd_register_handlers(struct messaging_context *msg_ctx,
+ bool foreground)
{
/* Setup signal handlers */
if (!winbindd_setup_sig_term_handler(true))
exit(1);
+ if (!winbindd_setup_stdin_handler(true, foreground))
+ exit(1);
if (!winbindd_setup_sig_hup_handler(NULL))
exit(1);
if (!winbindd_setup_sig_chld_handler())
/* get broadcast messages */
- if (!serverid_register(procid_self(),
- FLAG_MSG_GENERAL|FLAG_MSG_DBWRAP)) {
+ if (!serverid_register(messaging_server_id(msg_ctx),
+ FLAG_MSG_GENERAL |
+ FLAG_MSG_WINBIND |
+ FLAG_MSG_DBWRAP)) {
DEBUG(1, ("Could not register myself in serverid.tdb\n"));
exit(1);
}
/* React on 'smbcontrol winbindd reload-config' in the same way
as to SIGHUP signal */
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(msg_ctx, NULL,
MSG_SMB_CONF_UPDATED, msg_reload_services);
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(msg_ctx, NULL,
MSG_SHUTDOWN, msg_shutdown);
/* Handle online/offline messages. */
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(msg_ctx, NULL,
MSG_WINBIND_OFFLINE, winbind_msg_offline);
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(msg_ctx, NULL,
MSG_WINBIND_ONLINE, winbind_msg_online);
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(msg_ctx, NULL,
MSG_WINBIND_ONLINESTATUS, winbind_msg_onlinestatus);
+ /* Handle domain online/offline messages for domains */
+ messaging_register(winbind_messaging_context(), NULL,
+ MSG_WINBIND_DOMAIN_OFFLINE, winbind_msg_domain_offline);
messaging_register(winbind_messaging_context(), NULL,
+ MSG_WINBIND_DOMAIN_ONLINE, winbind_msg_domain_online);
+
+ messaging_register(msg_ctx, NULL,
MSG_DUMP_EVENT_LIST, winbind_msg_dump_event_list);
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(msg_ctx, NULL,
MSG_WINBIND_VALIDATE_CACHE,
winbind_msg_validate_cache);
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(msg_ctx, NULL,
MSG_WINBIND_DUMP_DOMAIN_LIST,
winbind_msg_dump_domain_list);
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(msg_ctx, NULL,
MSG_WINBIND_IP_DROPPED,
winbind_msg_ip_dropped_parent);
/* Register handler for MSG_DEBUG. */
- messaging_register(winbind_messaging_context(), NULL,
+ messaging_register(msg_ctx, NULL,
MSG_DEBUG,
winbind_msg_debug);
int opt;
TALLOC_CTX *frame;
NTSTATUS status;
+ bool ok;
/*
* Do this before any other talloc operation
talloc_enable_null_tracking();
frame = talloc_stackframe();
+ /*
+ * We want total control over the permissions on created files,
+ * so set our umask to 0.
+ */
+ umask(0);
+
+ setup_logging("winbindd", DEBUG_DEFAULT_STDOUT);
+
/* glibc (?) likes to print "User defined signal 1" and exit if a
SIGUSR[12] is received before a handler is installed */
CatchSignal(SIGUSR2, SIG_IGN);
fault_setup();
- dump_core_setup("winbindd", lp_logfile());
+ dump_core_setup("winbindd", lp_logfile(talloc_tos()));
load_case_tables();
}
}
+ /* We call dump_core_setup one more time because the command line can
+ * set the log file or the log-basename and this will influence where
+ * cores are stored. Without this call get_dyn_LOGFILEBASE will be
+ * the default value derived from build's prefix. For EOM this value
+ * is often not related to the path where winbindd is actually run
+ * in production.
+ */
+ dump_core_setup("winbindd", lp_logfile(talloc_tos()));
if (is_daemon && interactive) {
d_fprintf(stderr,"\nERROR: "
"Option -i|--interactive is not allowed together with -D|--daemon\n\n");
SAFE_FREE(lfile);
}
}
+
if (log_stdout) {
setup_logging("winbindd", DEBUG_STDOUT);
} else {
DEBUG(0, ("error opening config file '%s'\n", get_dyn_CONFIGFILE()));
exit(1);
}
+ /* After parsing the configuration file we setup the core path one more time
+ * as the log file might have been set in the configuration and cores's
+ * path is by default basename(lp_logfile()).
+ */
+ dump_core_setup("winbindd", lp_logfile(talloc_tos()));
+
+ if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC) {
+ DEBUG(0, ("server role = 'active directory domain controller' not compatible with running the winbindd binary. \n"));
+ DEBUGADD(0, ("You should start 'samba' instead, and it will control starting the internal AD DC winbindd implementation, which is not the same as this one\n"));
+ exit(1);
+ }
+
+ if (!cluster_probe_ok()) {
+ exit(1);
+ }
/* Initialise messaging system */
exit(1);
}
- if (!directory_exist(lp_lockdir())) {
- mkdir(lp_lockdir(), 0755);
+ ok = directory_create_or_exist(lp_lockdir(), geteuid(), 0755);
+ if (!ok) {
+ DEBUG(0, ("Failed to create directory %s for lock files - %s\n",
+ lp_lockdir(), strerror(errno)));
+ exit(1);
+ }
+
+ ok = directory_create_or_exist(lp_piddir(), geteuid(), 0755);
+ if (!ok) {
+ DEBUG(0, ("Failed to create directory %s for pid files - %s\n",
+ lp_piddir(), strerror(errno)));
+ exit(1);
}
/* Setup names. */
if (!interactive)
become_daemon(Fork, no_process_group, log_stdout);
- pidfile_create("winbindd");
+ pidfile_create(lp_piddir(), "winbindd");
#if HAVE_SETPGID
/*
status = reinit_after_fork(winbind_messaging_context(),
winbind_event_context(),
- procid_self(), false);
+ false);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("reinit_after_fork() failed\n"));
exit(1);
}
- winbindd_register_handlers();
+ /*
+ * Do not initialize the parent-child-pipe before becoming
+ * a daemon: this is used to detect a died parent in the child
+ * process.
+ */
+ status = init_before_fork();
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("init_before_fork failed: %s\n", nt_errstr(status)));
+ exit(1);
+ }
+
+ winbindd_register_handlers(winbind_messaging_context(), !Fork);
- status = init_system_info();
+ status = init_system_session_info();
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("ERROR: failed to setup system user info: %s.\n",
nt_errstr(status)));
git.samba.org / mat / samba.git / blobdiff