void *private_data;
};
+static void async_request_fail(struct winbindd_async_request *state);
static void async_main_request_sent(void *private_data, bool success);
static void async_request_sent(void *private_data, bool success);
static void async_reply_recv(void *private_data, bool success);
SMB_ASSERT(continuation != NULL);
+ DEBUG(10, ("Sending request to child pid %d (domain=%s)\n",
+ (int)child->pid,
+ (child->domain != NULL) ? child->domain->name : "''"));
+
state = TALLOC_P(mem_ctx, struct winbindd_async_request);
if (state == NULL) {
state->mem_ctx = mem_ctx;
state->child = child;
+ state->reply_timeout_event = NULL;
state->request = request;
state->response = response;
state->continuation = continuation;
if (!success) {
DEBUG(5, ("Could not send async request\n"));
-
- state->response->length = sizeof(struct winbindd_response);
- state->response->result = WINBINDD_ERROR;
- state->continuation(state->private_data, False);
+ async_request_fail(state);
return;
}
static void async_request_timeout_handler(struct event_context *ctx,
struct timed_event *te,
- const struct timeval *now,
+ struct timeval now,
void *private_data)
{
struct winbindd_async_request *state =
TALLOC_FREE(state->reply_timeout_event);
- SMB_ASSERT(state->child_pid != (pid_t)0);
+ /* If child exists and is not already reaped,
+ send kill signal to child. */
- /* If not already reaped, send kill signal to child. */
- if (state->child->pid == state->child_pid) {
+ if ((state->child->pid != (pid_t)0) &&
+ (state->child->pid != (pid_t)-1) &&
+ (state->child->pid == state->child_pid)) {
kill(state->child_pid, SIGTERM);
/*
state->reply_timeout_event = event_add_timed(winbind_event_context(),
NULL,
timeval_current_ofs(300,0),
- "async_request_timeout",
async_request_timeout_handler,
state);
if (!state->reply_timeout_event) {
return; /* Busy */
}
+ /*
+ * This may be a reschedule, so we might
+ * have an existing timeout event pending on
+ * the first entry in the child->requests list
+ * (we only send one request at a time).
+ * Ensure we free it before we reschedule.
+ * Bug #5814, from hargagan <shargagan@novell.com>.
+ * JRA.
+ */
+
+ TALLOC_FREE(request->reply_timeout_event);
+
if ((child->pid == 0) && (!fork_domain_child(child))) {
- /* Cancel all outstanding requests */
+ /* fork_domain_child failed.
+ Cancel all outstanding requests */
while (request != NULL) {
/* request might be free'd in the continuation */
struct winbindd_async_request *next = request->next;
- request->continuation(request->private_data, False);
+
+ async_request_fail(request);
request = next;
}
return;
child->event.flags = 0;
child->pid = 0;
+ if (child->requests) {
+ /*
+ * schedule_async_request() will also
+ * clear this event but the call is
+ * idempotent so it doesn't hurt to
+ * cover all possible future code
+ * paths. JRA.
+ */
+ TALLOC_FREE(child->requests->reply_timeout_event);
+ }
+
schedule_async_request(child);
}
}
}
+/*
+ * Parent winbindd process sets its own debug level first and then
+ * sends a message to all the winbindd children to adjust their debug
+ * level to that of parents.
+ */
+
+void winbind_msg_debug(struct messaging_context *msg_ctx,
+ void *private_data,
+ uint32_t msg_type,
+ struct server_id server_id,
+ DATA_BLOB *data)
+{
+ struct winbindd_child *child;
+
+ DEBUG(10,("winbind_msg_debug: got debug message.\n"));
+
+ debug_message(msg_ctx, private_data, MSG_DEBUG, server_id, data);
+
+ for (child = children; child != NULL; child = child->next) {
+
+ DEBUG(10,("winbind_msg_debug: sending message to pid %u.\n",
+ (unsigned int)child->pid));
+
+ messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
+ MSG_DEBUG,
+ data->data,
+ strlen((char *) data->data) + 1);
+ }
+}
+
/* Set our domains as offline and forward the offline message to our children. */
void winbind_msg_offline(struct messaging_context *msg_ctx,
static void account_lockout_policy_handler(struct event_context *ctx,
struct timed_event *te,
- const struct timeval *now,
+ struct timeval now,
void *private_data)
{
struct winbindd_child *child =
child->lockout_policy_event = event_add_timed(winbind_event_context(), NULL,
timeval_current_ofs(3600, 0),
- "account_lockout_policy_handler",
account_lockout_policy_handler,
child);
}
+static time_t get_machine_password_timeout(void)
+{
+ /* until we have gpo support use lp setting */
+ return lp_machine_password_timeout();
+}
+
+static bool calculate_next_machine_pwd_change(const char *domain,
+ struct timeval *t)
+{
+ time_t pass_last_set_time;
+ time_t timeout;
+ time_t next_change;
+ char *pw;
+
+ pw = secrets_fetch_machine_password(domain,
+ &pass_last_set_time,
+ NULL);
+
+ if (pw == NULL) {
+ DEBUG(0,("cannot fetch own machine password ????"));
+ return false;
+ }
+
+ SAFE_FREE(pw);
+
+ timeout = get_machine_password_timeout();
+ if (timeout == 0) {
+ DEBUG(10,("machine password never expires\n"));
+ return false;
+ }
+
+ if (time(NULL) < (pass_last_set_time + timeout)) {
+ next_change = pass_last_set_time + timeout;
+ DEBUG(10,("machine password still valid until: %s\n",
+ http_timestring(talloc_tos(), next_change)));
+ *t = timeval_set(next_change, 0);
+ return true;
+ }
+
+ DEBUG(10,("machine password expired, needs immediate change\n"));
+
+ *t = timeval_zero();
+
+ return true;
+}
+
+static void machine_password_change_handler(struct event_context *ctx,
+ struct timed_event *te,
+ struct timeval now,
+ void *private_data)
+{
+ struct winbindd_child *child =
+ (struct winbindd_child *)private_data;
+ struct rpc_pipe_client *netlogon_pipe = NULL;
+ TALLOC_CTX *frame;
+ NTSTATUS result;
+ struct timeval next_change;
+
+ DEBUG(10,("machine_password_change_handler called\n"));
+
+ TALLOC_FREE(child->machine_password_change_event);
+
+ if (!calculate_next_machine_pwd_change(child->domain->name,
+ &next_change)) {
+ return;
+ }
+
+ if (!winbindd_can_contact_domain(child->domain)) {
+ DEBUG(10,("machine_password_change_handler: Removing myself since I "
+ "do not have an incoming trust to domain %s\n",
+ child->domain->name));
+ return;
+ }
+
+ result = cm_connect_netlogon(child->domain, &netlogon_pipe);
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(10,("machine_password_change_handler: "
+ "failed to connect netlogon pipe: %s\n",
+ nt_errstr(result)));
+ return;
+ }
+
+ frame = talloc_stackframe();
+
+ result = trust_pw_find_change_and_store_it(netlogon_pipe,
+ frame,
+ child->domain->name);
+ TALLOC_FREE(frame);
+
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(10,("machine_password_change_handler: "
+ "failed to change machine password: %s\n",
+ nt_errstr(result)));
+ } else {
+ DEBUG(10,("machine_password_change_handler: "
+ "successfully changed machine password\n"));
+ }
+
+ child->machine_password_change_event = event_add_timed(winbind_event_context(), NULL,
+ next_change,
+ machine_password_change_handler,
+ child);
+}
+
/* Deal with a request to go offline. */
static void child_msg_offline(struct messaging_context *msg,
DATA_BLOB *data)
{
struct winbindd_domain *domain;
+ struct winbindd_domain *primary_domain = NULL;
const char *domainname = (const char *)data->data;
if (data->data == NULL || data->length == 0) {
return;
}
+ primary_domain = find_our_domain();
+
/* Mark the requested domain offline. */
for (domain = domain_list(); domain; domain = domain->next) {
if (strequal(domain->name, domainname)) {
DEBUG(5,("child_msg_offline: marking %s offline.\n", domain->name));
set_domain_offline(domain);
+ /* we are in the trusted domain, set the primary domain
+ * offline too */
+ if (domain != primary_domain) {
+ set_domain_offline(primary_domain);
+ }
}
}
}
DATA_BLOB *data)
{
struct winbindd_domain *domain;
+ struct winbindd_domain *primary_domain = NULL;
const char *domainname = (const char *)data->data;
if (data->data == NULL || data->length == 0) {
return;
}
+ primary_domain = find_our_domain();
+
/* Set our global state as online. */
set_global_winbindd_state_online();
DEBUG(5,("child_msg_online: requesting %s to go online.\n", domain->name));
winbindd_flush_negative_conn_cache(domain);
set_domain_online_request(domain);
+
+ /* we can be in trusted domain, which will contact primary domain
+ * we have to bring primary domain online in trusted domain process
+ * see, winbindd_dual_pam_auth() --> winbindd_dual_pam_auth_samlogon()
+ * --> contact_domain = find_our_domain()
+ * */
+ if (domain != primary_domain) {
+ winbindd_flush_negative_conn_cache(primary_domain);
+ set_domain_online_request(primary_domain);
+ }
}
}
}
dump_event_list(winbind_event_context());
}
+bool winbindd_reinit_after_fork(const char *logfilename)
+{
+ struct winbindd_domain *domain;
+ struct winbindd_child *cl;
+
+ if (!reinit_after_fork(winbind_messaging_context(),
+ winbind_event_context(), true)) {
+ DEBUG(0,("reinit_after_fork() failed\n"));
+ return false;
+ }
+
+ close_conns_after_fork();
+
+ if (!override_logfile && logfilename) {
+ lp_set_logfile(logfilename);
+ reopen_logs();
+ }
+
+ /* Don't handle the same messages as our parent. */
+ messaging_deregister(winbind_messaging_context(),
+ MSG_SMB_CONF_UPDATED, NULL);
+ messaging_deregister(winbind_messaging_context(),
+ MSG_SHUTDOWN, NULL);
+ messaging_deregister(winbind_messaging_context(),
+ MSG_WINBIND_OFFLINE, NULL);
+ messaging_deregister(winbind_messaging_context(),
+ MSG_WINBIND_ONLINE, NULL);
+ messaging_deregister(winbind_messaging_context(),
+ MSG_WINBIND_ONLINESTATUS, NULL);
+ messaging_deregister(winbind_messaging_context(),
+ MSG_DUMP_EVENT_LIST, NULL);
+ messaging_deregister(winbind_messaging_context(),
+ MSG_WINBIND_DUMP_DOMAIN_LIST, NULL);
+ messaging_deregister(winbind_messaging_context(),
+ MSG_DEBUG, NULL);
+
+ /* We have destroyed all events in the winbindd_event_context
+ * in reinit_after_fork(), so clean out all possible pending
+ * event pointers. */
+
+ /* Deal with check_online_events. */
+
+ for (domain = domain_list(); domain; domain = domain->next) {
+ TALLOC_FREE(domain->check_online_event);
+ }
+
+ /* Ensure we're not handling a credential cache event inherited
+ * from our parent. */
+
+ ccache_remove_all_after_fork();
+
+ /* Destroy all possible events in child list. */
+ for (cl = children; cl != NULL; cl = cl->next) {
+ struct winbindd_async_request *request;
+
+ for (request = cl->requests; request; request = request->next) {
+ TALLOC_FREE(request->reply_timeout_event);
+ }
+ TALLOC_FREE(cl->lockout_policy_event);
+ TALLOC_FREE(cl->machine_password_change_event);
+
+ /* Children should never be able to send
+ * each other messages, all meesages must
+ * go through the parent.
+ */
+ cl->pid = (pid_t)0;
+ }
+ /*
+ * This is a little tricky, we don't want child
+ * to send MSG_WINBIND_ONLINE to idmap_child().
+ * If we are in the child of trusted domain or
+ * in the process created by fork_child_dc_connect().
+ * And the trusted domain cannot go online,
+ * fork_child_dc_connection() sends MSG_WINBIND_ONLINE
+ * periodically to idmap_child().
+ * look, fork_child_dc_connect() ---> getdcs() --->
+ * get_dc_name_via_netlogon() ---> cm_connect_netlogon()
+ * ---> init_dc_connection() ---> cm_open_connection --->
+ * set_domain_online(), here send MSG_WINBIND_ONLINE to
+ * idmap_child().
+ */
+ cl = idmap_child();
+ cl->pid = (pid_t)0;
+
+ return true;
+}
static bool fork_domain_child(struct winbindd_child *child)
{
int fdpair[2];
struct winbindd_cli_state state;
- struct winbindd_domain *domain;
+ struct winbindd_domain *primary_domain = NULL;
if (child->domain) {
DEBUG(10, ("fork_domain_child called for domain '%s'\n",
DLIST_ADD(children, child);
child->event.fd = fdpair[1];
child->event.flags = 0;
- child->requests = NULL;
add_fd_event(&child->event);
return True;
}
/* Child */
+ DEBUG(10, ("Child process %d\n", (int)sys_getpid()));
+
/* Stop zombies in children */
CatchChild();
state.sock = fdpair[0];
close(fdpair[1]);
- if (!reinit_after_fork(winbind_messaging_context(), true)) {
- DEBUG(0,("reinit_after_fork() failed\n"));
+ if (!winbindd_reinit_after_fork(child->logfilename)) {
_exit(0);
}
- close_conns_after_fork();
-
- if (!override_logfile) {
- lp_set_logfile(child->logfilename);
- reopen_logs();
- }
-
- /*
- * For clustering, we need to re-init our ctdbd connection after the
- * fork
- */
- if (!NT_STATUS_IS_OK(messaging_reinit(winbind_messaging_context())))
- exit(1);
-
- /* Don't handle the same messages as our parent. */
- messaging_deregister(winbind_messaging_context(),
- MSG_SMB_CONF_UPDATED, NULL);
- messaging_deregister(winbind_messaging_context(),
- MSG_SHUTDOWN, NULL);
- messaging_deregister(winbind_messaging_context(),
- MSG_WINBIND_OFFLINE, NULL);
- messaging_deregister(winbind_messaging_context(),
- MSG_WINBIND_ONLINE, NULL);
- messaging_deregister(winbind_messaging_context(),
- MSG_WINBIND_ONLINESTATUS, NULL);
- messaging_deregister(winbind_messaging_context(),
- MSG_DUMP_EVENT_LIST, NULL);
- messaging_deregister(winbind_messaging_context(),
- MSG_WINBIND_DUMP_DOMAIN_LIST, NULL);
-
/* Handle online/offline messages. */
messaging_register(winbind_messaging_context(), NULL,
MSG_WINBIND_OFFLINE, child_msg_offline);
MSG_WINBIND_ONLINESTATUS, child_msg_onlinestatus);
messaging_register(winbind_messaging_context(), NULL,
MSG_DUMP_EVENT_LIST, child_msg_dump_event_list);
+ messaging_register(winbind_messaging_context(), NULL,
+ MSG_DEBUG, debug_message);
+ primary_domain = find_our_domain();
+
+ if (primary_domain == NULL) {
+ smb_panic("no primary domain found");
+ }
+
+ /* It doesn't matter if we allow cache login,
+ * try to bring domain online after fork. */
if ( child->domain ) {
child->domain->startup = True;
child->domain->startup_time = time(NULL);
- }
-
- /* Ensure we have no pending check_online events other
- than one for this domain. */
-
- for (domain = domain_list(); domain; domain = domain->next) {
- if (domain != child->domain) {
- TALLOC_FREE(domain->check_online_event);
+ /* we can be in primary domain or in trusted domain
+ * If we are in trusted domain, set the primary domain
+ * in start-up mode */
+ if (!(child->domain->internal)) {
+ set_domain_online_request(child->domain);
+ if (!(child->domain->primary)) {
+ primary_domain->startup = True;
+ primary_domain->startup_time = time(NULL);
+ set_domain_online_request(primary_domain);
+ }
}
}
-
- /* Ensure we're not handling an event inherited from
- our parent. */
-
- cancel_named_event(winbind_event_context(),
- "krb5_ticket_refresh_handler");
+
+ /*
+ * We are in idmap child, make sure that we set the
+ * check_online_event to bring primary domain online.
+ */
+ if (child == idmap_child()) {
+ set_domain_online_request(primary_domain);
+ }
/* We might be in the idmap child...*/
if (child->domain && !(child->domain->internal) &&
set_domain_online_request(child->domain);
+ if (primary_domain && (primary_domain != child->domain)) {
+ /* We need to talk to the primary
+ * domain as well as the trusted
+ * domain inside a trusted domain
+ * child.
+ * See the code in :
+ * set_dc_type_and_flags_trustinfo()
+ * for details.
+ */
+ set_domain_online_request(primary_domain);
+ }
+
child->lockout_policy_event = event_add_timed(
winbind_event_context(), NULL, timeval_zero(),
- "account_lockout_policy_handler",
account_lockout_policy_handler,
child);
}
+ if (child->domain && child->domain->primary &&
+ !lp_use_kerberos_keytab() &&
+ lp_server_role() == ROLE_DOMAIN_MEMBER) {
+
+ struct timeval next_change;
+
+ if (calculate_next_machine_pwd_change(child->domain->name,
+ &next_change)) {
+ child->machine_password_change_event = event_add_timed(
+ winbind_event_context(), NULL, next_change,
+ machine_password_change_handler,
+ child);
+ }
+ }
+
while (1) {
int ret;
TALLOC_CTX *frame = talloc_stackframe();
/* check for signals */
- winbind_check_sigterm();
- winbind_check_sighup();
+ winbind_check_sigterm(false);
+ winbind_check_sighup(override_logfile ? NULL :
+ child->logfilename);
run_events(winbind_event_context(), 0, NULL, NULL);
DEBUG(0,("select error occured\n"));
TALLOC_FREE(frame);
perror("select");
- return False;
+ _exit(1);
}
/* fetch a request from the main daemon */
if (state.finished) {
/* we lost contact with our parent */
- exit(0);
+ _exit(0);
}
DEBUG(4,("child daemon request %d\n", (int)state.request.cmd));
git.samba.org / jra / samba / .git / blobdiff