#include "../librpc/gen_ndr/srv_lsa.h"
#include "../librpc/gen_ndr/srv_samr.h"
#include "secrets.h"
+#include "rpc_client/cli_netlogon.h"
#include "idmap.h"
#include "lib/addrchange.h"
#include "serverid.h"
#include "messages.h"
#include "../lib/util/pidfile.h"
#include "util_cluster.h"
+#include "source4/lib/messaging/irpc.h"
+#include "source4/lib/messaging/messaging.h"
+#include "lib/param/param.h"
+#include "lib/async_req/async_sock.h"
+#include "libsmb/samlogon_cache.h"
+#include "libcli/auth/netlogon_creds_cli.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
+#define SCRUB_CLIENTS_INTERVAL 5
+
static bool client_is_idle(struct winbindd_cli_state *state);
static void remove_client(struct winbindd_cli_state *state);
+static void winbindd_setup_max_fds(void);
static bool opt_nocache = False;
static bool interactive = False;
return msg;
}
+struct imessaging_context *winbind_imessaging_context(void)
+{
+ static struct imessaging_context *msg = NULL;
+ struct messaging_context *msg_ctx;
+ struct server_id myself;
+ struct loadparm_context *lp_ctx;
+
+ if (msg != NULL) {
+ return msg;
+ }
+
+ msg_ctx = server_messaging_context();
+ if (msg_ctx == NULL) {
+ smb_panic("server_messaging_context failed\n");
+ }
+ myself = messaging_server_id(msg_ctx);
+
+ lp_ctx = loadparm_init_s3(NULL, loadparm_s3_helpers());
+ if (lp_ctx == NULL) {
+ smb_panic("Could not load smb.conf to init winbindd's imessaging context.\n");
+ }
+
+ /*
+ * Note we MUST use the NULL context here, not the autofree context,
+ * to avoid side effects in forked children exiting.
+ */
+ msg = imessaging_init(NULL, lp_ctx, myself, winbind_event_context());
+ talloc_unlink(NULL, lp_ctx);
+
+ if (msg == NULL) {
+ smb_panic("Could not init winbindd's messaging context.\n");
+ }
+ return msg;
+}
+
/* Reload configuration */
static bool reload_services_file(const char *lfile)
bool ret;
if (lp_loaded()) {
- char *fname = lp_configfile(talloc_tos());
+ char *fname = lp_next_configfile(talloc_tos());
if (file_exist(fname) && !strcsequal(fname,get_dyn_CONFIGFILE())) {
set_dyn_CONFIGFILE(fname);
reopen_logs();
load_interfaces();
+ winbindd_setup_max_fds();
return(ret);
}
idmap_close();
- trustdom_cache_shutdown();
-
gencache_stabilize();
+ netlogon_creds_cli_close_global_db();
+
#if 0
if (interactive) {
TALLOC_CTX *mem_ctx = talloc_init("end_description");
struct messaging_context *msg = winbind_messaging_context();
struct server_id self = messaging_server_id(msg);
serverid_deregister(self);
- pidfile_unlink(lp_piddir(), "winbindd");
+ pidfile_unlink(lp_pid_directory(), "winbindd");
}
exit(0);
{
pid_t pid;
- while ((pid = sys_waitpid(-1, NULL, WNOHANG)) > 0) {
+ while ((pid = waitpid(-1, NULL, WNOHANG)) > 0) {
winbind_child_died(pid);
}
}
struct server_id server_id,
DATA_BLOB *data)
{
- uint8 ret;
+ uint8_t ret;
pid_t child_pid;
NTSTATUS status;
/* install default SIGCHLD handler: validation code uses fork/waitpid */
CatchSignal(SIGCHLD, SIG_DFL);
- ret = (uint8)winbindd_validate_cache_nobackup();
+ ret = (uint8_t)winbindd_validate_cache_nobackup();
DEBUG(10, ("winbindd_msg_validata_cache: got return value %d\n", ret));
messaging_send_buf(msg_ctx, server_id, MSG_WINBIND_VALIDATE_CACHE, &ret,
(size_t)1);
winbindd_lookupsids_send, winbindd_lookupsids_recv },
{ WINBINDD_LOOKUPNAME, "LOOKUPNAME",
winbindd_lookupname_send, winbindd_lookupname_recv },
- { WINBINDD_SID_TO_UID, "SID_TO_UID",
- winbindd_sid_to_uid_send, winbindd_sid_to_uid_recv },
- { WINBINDD_SID_TO_GID, "SID_TO_GID",
- winbindd_sid_to_gid_send, winbindd_sid_to_gid_recv },
- { WINBINDD_UID_TO_SID, "UID_TO_SID",
- winbindd_uid_to_sid_send, winbindd_uid_to_sid_recv },
- { WINBINDD_GID_TO_SID, "GID_TO_SID",
- winbindd_gid_to_sid_send, winbindd_gid_to_sid_recv },
{ WINBINDD_SIDS_TO_XIDS, "SIDS_TO_XIDS",
winbindd_sids_to_xids_send, winbindd_sids_to_xids_recv },
+ { WINBINDD_XIDS_TO_SIDS, "XIDS_TO_SIDS",
+ winbindd_xids_to_sids_send, winbindd_xids_to_sids_recv },
{ WINBINDD_GETPWSID, "GETPWSID",
winbindd_getpwsid_send, winbindd_getpwsid_recv },
{ WINBINDD_GETPWNAM, "GETPWNAM",
state->cmd_name = "unknown request";
state->recv_fn = NULL;
- state->last_access = time(NULL);
+ /* client is newest */
+ winbindd_promote_client(state);
/* Process command */
static void winbind_client_request_read(struct tevent_req *req);
static void winbind_client_response_written(struct tevent_req *req);
+static void winbind_client_activity(struct tevent_req *req);
static void request_finished(struct winbindd_cli_state *state)
{
struct tevent_req *req;
+ /* free client socket monitoring request */
+ TALLOC_FREE(state->io_req);
+
TALLOC_FREE(state->request);
req = wb_resp_write_send(state, winbind_event_context(),
return;
}
tevent_req_set_callback(req, winbind_client_response_written, state);
+ state->io_req = req;
}
static void winbind_client_response_written(struct tevent_req *req)
ssize_t ret;
int err;
+ state->io_req = NULL;
+
ret = wb_resp_write_recv(req, &err);
TALLOC_FREE(req);
if (ret == -1) {
return;
}
tevent_req_set_callback(req, winbind_client_request_read, state);
+ state->io_req = req;
}
void request_error(struct winbindd_cli_state *state)
return;
}
- state->last_access = time(NULL);
-
state->privileged = privileged;
req = wb_req_read_send(state, winbind_event_context(), state->sock,
return;
}
tevent_req_set_callback(req, winbind_client_request_read, state);
+ state->io_req = req;
/* Add to connection list */
ssize_t ret;
int err;
+ state->io_req = NULL;
+
ret = wb_req_read_recv(req, state, &state->request, &err);
TALLOC_FREE(req);
if (ret == -1) {
remove_client(state);
return;
}
+
+ req = wait_for_read_send(state, winbind_event_context(), state->sock,
+ true);
+ if (req == NULL) {
+ DEBUG(0, ("winbind_client_request_read[%d:%s]:"
+ " wait_for_read_send failed - removing client\n",
+ (int)state->pid, state->cmd_name));
+ remove_client(state);
+ return;
+ }
+ tevent_req_set_callback(req, winbind_client_activity, state);
+ state->io_req = req;
+
process_request(state);
}
+static void winbind_client_activity(struct tevent_req *req)
+{
+ struct winbindd_cli_state *state =
+ tevent_req_callback_data(req, struct winbindd_cli_state);
+ int err;
+ bool has_data;
+
+ has_data = wait_for_read_recv(req, &err);
+
+ if (has_data) {
+ DEBUG(0, ("winbind_client_activity[%d:%s]:"
+ "unexpected data from client - removing client\n",
+ (int)state->pid, state->cmd_name));
+ } else {
+ if (err == EPIPE) {
+ DEBUG(6, ("winbind_client_activity[%d:%s]: "
+ "client has closed connection - removing "
+ "client\n",
+ (int)state->pid, state->cmd_name));
+ } else {
+ DEBUG(2, ("winbind_client_activity[%d:%s]: "
+ "client socket error (%s) - removing "
+ "client\n",
+ (int)state->pid, state->cmd_name,
+ strerror(err)));
+ }
+ }
+
+ remove_client(state);
+}
+
/* Remove a client connection from client connection list */
static void remove_client(struct winbindd_cli_state *state)
return;
}
+ /*
+ * We need to remove a pending wb_req_read_*
+ * or wb_resp_write_* request before closing the
+ * socket.
+ *
+ * This is important as they might have used tevent_add_fd() and we
+ * use the epoll * backend on linux. So we must remove the tevent_fd
+ * before closing the fd.
+ *
+ * Otherwise we might hit a race with close_conns_after_fork() (via
+ * winbindd_reinit_after_fork()) where a file description
+ * is still open in a child, which means it's still active in
+ * the parents epoll queue, but the related tevent_fd is already
+ * already gone in the parent.
+ *
+ * See bug #11141.
+ */
+ TALLOC_FREE(state->io_req);
+
if (state->sock != -1) {
/* tell client, we are closing ... */
nwritten = write(state->sock, &c, sizeof(c));
static bool remove_idle_client(void)
{
struct winbindd_cli_state *state, *remove_state = NULL;
- time_t last_access = 0;
int nidle = 0;
for (state = winbindd_client_list(); state; state = state->next) {
if (client_is_idle(state)) {
nidle++;
- if (!last_access || state->last_access < last_access) {
- last_access = state->last_access;
- remove_state = state;
- }
+ /* list is sorted by access time */
+ remove_state = state;
}
}
return False;
}
+/*
+ * Terminate all clients whose requests have taken longer than
+ * "winbind request timeout" seconds to process, or have been
+ * idle for more than "winbind request timeout" seconds.
+ */
+
+static void remove_timed_out_clients(void)
+{
+ struct winbindd_cli_state *state, *prev = NULL;
+ time_t curr_time = time(NULL);
+ int timeout_val = lp_winbind_request_timeout();
+
+ for (state = winbindd_client_list_tail(); state; state = prev) {
+ time_t expiry_time;
+
+ prev = winbindd_client_list_prev(state);
+ expiry_time = state->last_access + timeout_val;
+
+ if (curr_time <= expiry_time) {
+ /* list is sorted, previous clients in
+ list are newer */
+ break;
+ }
+
+ if (client_is_idle(state)) {
+ DEBUG(5,("Idle client timed out, "
+ "shutting down sock %d, pid %u\n",
+ state->sock,
+ (unsigned int)state->pid));
+ } else {
+ DEBUG(5,("Client request timed out, "
+ "shutting down sock %d, pid %u\n",
+ state->sock,
+ (unsigned int)state->pid));
+ }
+
+ remove_client(state);
+ }
+}
+
+static void winbindd_scrub_clients_handler(struct tevent_context *ev,
+ struct tevent_timer *te,
+ struct timeval current_time,
+ void *private_data)
+{
+ remove_timed_out_clients();
+ if (tevent_add_timer(ev, ev,
+ timeval_current_ofs(SCRUB_CLIENTS_INTERVAL, 0),
+ winbindd_scrub_clients_handler, NULL) == NULL) {
+ DEBUG(0, ("winbindd: failed to reschedule client scrubber\n"));
+ exit(1);
+ }
+}
+
struct winbindd_listen_state {
bool privileged;
int fd;
break;
}
}
+ remove_timed_out_clients();
new_connection(s->fd, s->privileged);
}
return state_path(WINBINDD_PRIV_SOCKET_SUBDIR);
}
+static void winbindd_setup_max_fds(void)
+{
+ int num_fds = MAX_OPEN_FUDGEFACTOR;
+ int actual_fds;
+
+ num_fds += lp_winbind_max_clients();
+ /* Add some more to account for 2 sockets open
+ when the client transitions from unprivileged
+ to privileged socket
+ */
+ num_fds += lp_winbind_max_clients() / 10;
+
+ /* Add one socket per child process
+ (yeah there are child processes other than the
+ domain children but only domain children can vary
+ with configuration
+ */
+ num_fds += lp_winbind_max_domain_connections() *
+ (lp_allow_trusted_domains() ? WINBIND_MAX_DOMAINS_HINT : 1);
+
+ actual_fds = set_maxfiles(num_fds);
+
+ if (actual_fds < num_fds) {
+ DEBUG(1, ("winbindd_setup_max_fds: Information only: "
+ "requested %d open files, %d are available.\n",
+ num_fds, actual_fds));
+ }
+}
+
static bool winbindd_setup_listeners(void)
{
struct winbindd_listen_state *pub_state = NULL;
struct winbindd_listen_state *priv_state = NULL;
struct tevent_fd *fde;
int rc;
+ char *socket_path;
pub_state = talloc(winbind_event_context(),
struct winbindd_listen_state);
goto failed;
}
+ socket_path = get_winbind_priv_pipe_dir();
+ if (socket_path == NULL) {
+ goto failed;
+ }
+
priv_state->privileged = true;
priv_state->fd = create_pipe_sock(
- get_winbind_priv_pipe_dir(), WINBINDD_SOCKET_NAME, 0750);
+ socket_path, WINBINDD_SOCKET_NAME, 0750);
+ TALLOC_FREE(socket_path);
if (priv_state->fd == -1) {
goto failed;
}
}
tevent_fd_set_auto_close(fde);
+ winbindd_scrub_clients_handler(winbind_event_context(), NULL,
+ timeval_current(), NULL);
return true;
failed:
TALLOC_FREE(pub_state);
static void winbindd_register_handlers(struct messaging_context *msg_ctx,
bool foreground)
{
+ NTSTATUS status;
/* Setup signal handlers */
if (!winbindd_setup_sig_term_handler(true))
}
}
+ status = wb_irpc_register();
+
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("Could not register IRPC handlers\n"));
+ exit(1);
+ }
}
struct winbindd_addrchanged_state {
/* Main function */
-int main(int argc, char **argv, char **envp)
+int main(int argc, const char **argv)
{
static bool is_daemon = False;
static bool Fork = True;
fault_setup();
dump_core_setup("winbindd", lp_logfile(talloc_tos()));
- load_case_tables();
+ smb_init_locale();
/* Initialise for running in non-root mode */
/* Initialise samba/rpc client stuff */
- pc = poptGetContext("winbindd", argc, (const char **)argv, long_options, 0);
+ pc = poptGetContext("winbindd", argc, argv, long_options, 0);
while ((opt = poptGetNextOpt(pc)) != -1) {
switch (opt) {
*/
dump_core_setup("winbindd", lp_logfile(talloc_tos()));
- if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC) {
+ if (lp_server_role() == ROLE_ACTIVE_DIRECTORY_DC
+ && !lp_parm_bool(-1, "server role check", "inhibit", false)) {
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);
exit(1);
}
- ok = directory_create_or_exist(lp_lockdir(), geteuid(), 0755);
+ {
+ size_t i;
+ const char *idmap_backend;
+ const char *invalid_backends[] = {
+ "ad", "rfc2307", "rid",
+ };
+
+ idmap_backend = lp_idmap_default_backend();
+ for (i = 0; i < ARRAY_SIZE(invalid_backends); i++) {
+ ok = strequal(idmap_backend, invalid_backends[i]);
+ if (ok) {
+ DBG_ERR("FATAL: Invalid idmap backend %s "
+ "configured as the default backend!\n",
+ idmap_backend);
+ exit(1);
+ }
+ }
+ }
+
+ ok = directory_create_or_exist(lp_lock_directory(), 0755);
if (!ok) {
DEBUG(0, ("Failed to create directory %s for lock files - %s\n",
- lp_lockdir(), strerror(errno)));
+ lp_lock_directory(), strerror(errno)));
exit(1);
}
- ok = directory_create_or_exist(lp_piddir(), geteuid(), 0755);
+ ok = directory_create_or_exist(lp_pid_directory(), 0755);
if (!ok) {
DEBUG(0, ("Failed to create directory %s for pid files - %s\n",
- lp_piddir(), strerror(errno)));
+ lp_pid_directory(), strerror(errno)));
exit(1);
}
return False;
}
+ status = rpccli_pre_open_netlogon_creds();
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0, ("rpccli_pre_open_netlogon_creds() - %s\n",
+ nt_errstr(status)));
+ exit(1);
+ }
+
/* Unblock all signals we are interested in as they may have been
blocked by the parent process. */
if (!interactive)
become_daemon(Fork, no_process_group, log_stdout);
- pidfile_create(lp_piddir(), "winbindd");
+ pidfile_create(lp_pid_directory(), "winbindd");
#if HAVE_SETPGID
/*
status = reinit_after_fork(winbind_messaging_context(),
winbind_event_context(),
- false);
+ false, NULL);
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0,("reinit_after_fork() failed\n"));
- exit(1);
+ exit_daemon("Winbindd reinit_after_fork() failed", map_errno_from_nt_status(status));
}
/*
*/
status = init_before_fork();
if (!NT_STATUS_IS_OK(status)) {
- DEBUG(0, ("init_before_fork failed: %s\n", nt_errstr(status)));
- exit(1);
+ exit_daemon(nt_errstr(status), map_errno_from_nt_status(status));
}
winbindd_register_handlers(winbind_messaging_context(), !Fork);
+ if (!messaging_parent_dgm_cleanup_init(winbind_messaging_context())) {
+ exit(1);
+ }
+
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)));
- exit(1);
+ exit_daemon("Winbindd failed to setup system user info", map_errno_from_nt_status(status));
}
rpc_lsarpc_init(NULL);
/* setup listen sockets */
if (!winbindd_setup_listeners()) {
- DEBUG(0,("winbindd_setup_listeners() failed\n"));
- exit(1);
+ exit_daemon("Winbindd failed to setup listeners", EPIPE);
}
+ irpc_add_name(winbind_imessaging_context(), "winbind_server");
+
TALLOC_FREE(frame);
+
+ if (!interactive) {
+ daemon_ready("winbindd");
+ }
+
/* Loop waiting for requests */
while (1) {
frame = talloc_stackframe();
git.samba.org / sfrench / samba-autobuild / .git / blobdiff