/*
Unix SMB/CIFS implementation.
- Winbind background daemon
+ Winbind child daemons
Copyright (C) Andrew Tridgell 2002
+ Copyright (C) Volker Lendecke 2004,2005
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
*/
/*
- the idea of the optional dual daemon mode is ot prevent slow domain
- responses from clagging up the rest of the system. When in dual
- daemon mode winbindd always responds to requests from cache if the
- request is in cache, and if the cached answer is stale then it asks
- the "dual daemon" to update the cache for that request
-
+ * We fork a child per domain to be able to act non-blocking in the main
+ * winbind daemon. A domain controller thousands of miles away being being
+ * slow replying with a 10.000 user list should not hold up netlogon calls
+ * that can be handled locally.
*/
+#include "includes.h"
#include "winbindd.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
-extern BOOL opt_dual_daemon;
-BOOL background_process = False;
-int dual_daemon_pipe = -1;
+/* Read some data from a client connection */
+
+static void child_read_request(struct winbindd_cli_state *state)
+{
+ ssize_t len;
+ /* Read data */
-/* a list of requests ready to be sent to the dual daemon */
-struct dual_list {
- struct dual_list *next;
- char *data;
- int length;
- int offset;
-};
+ len = read_data(state->sock, (char *)&state->request,
+ sizeof(state->request));
+
+ if (len != sizeof(state->request)) {
+ DEBUG(0, ("Got invalid request length: %d\n", (int)len));
+ state->finished = True;
+ return;
+ }
+
+ if (state->request.extra_len == 0) {
+ state->request.extra_data.data = NULL;
+ return;
+ }
+
+ DEBUG(10, ("Need to read %d extra bytes\n", (int)state->request.extra_len));
+
+ state->request.extra_data.data =
+ SMB_MALLOC_ARRAY(char, state->request.extra_len + 1);
+
+ if (state->request.extra_data.data == NULL) {
+ DEBUG(0, ("malloc failed\n"));
+ state->finished = True;
+ return;
+ }
-static struct dual_list *dual_list;
-static struct dual_list *dual_list_end;
+ /* Ensure null termination */
+ state->request.extra_data.data[state->request.extra_len] = '\0';
+
+ len = read_data(state->sock, state->request.extra_data.data,
+ state->request.extra_len);
+
+ if (len != state->request.extra_len) {
+ DEBUG(0, ("Could not read extra data\n"));
+ state->finished = True;
+ return;
+ }
+}
/*
- setup a select() including the dual daemon pipe
+ * Machinery for async requests sent to children. You set up a
+ * winbindd_request, select a child to query, and issue a async_request
+ * call. When the request is completed, the callback function you specified is
+ * called back with the private pointer you gave to async_request.
*/
-int dual_select_setup(fd_set *fds, int maxfd)
+
+struct winbindd_async_request {
+ struct winbindd_async_request *next, *prev;
+ TALLOC_CTX *mem_ctx;
+ struct winbindd_child *child;
+ struct winbindd_request *request;
+ struct winbindd_response *response;
+ void (*continuation)(void *private_data, BOOL success);
+ void *private_data;
+};
+
+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);
+static void schedule_async_request(struct winbindd_child *child);
+
+void async_request(TALLOC_CTX *mem_ctx, struct winbindd_child *child,
+ struct winbindd_request *request,
+ struct winbindd_response *response,
+ void (*continuation)(void *private_data, BOOL success),
+ void *private_data)
{
- if (dual_daemon_pipe == -1 ||
- !dual_list) {
- return maxfd;
+ struct winbindd_async_request *state, *tmp;
+
+ SMB_ASSERT(continuation != NULL);
+
+ state = TALLOC_P(mem_ctx, struct winbindd_async_request);
+
+ if (state == NULL) {
+ DEBUG(0, ("talloc failed\n"));
+ continuation(private_data, False);
+ return;
}
- FD_SET(dual_daemon_pipe, fds);
- if (dual_daemon_pipe > maxfd) {
- maxfd = dual_daemon_pipe;
+ state->mem_ctx = mem_ctx;
+ state->child = child;
+ state->request = request;
+ state->response = response;
+ state->continuation = continuation;
+ state->private_data = private_data;
+
+ DLIST_ADD_END(child->requests, state, tmp);
+
+ schedule_async_request(child);
+
+ return;
+}
+
+static void async_main_request_sent(void *private_data, BOOL success)
+{
+ struct winbindd_async_request *state =
+ talloc_get_type_abort(private_data, struct winbindd_async_request);
+
+ 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);
+ return;
}
- return maxfd;
+
+ if (state->request->extra_len == 0) {
+ async_request_sent(private_data, True);
+ return;
+ }
+
+ setup_async_write(&state->child->event, state->request->extra_data.data,
+ state->request->extra_len,
+ async_request_sent, state);
}
+static void async_request_sent(void *private_data_data, BOOL success)
+{
+ struct winbindd_async_request *state =
+ talloc_get_type_abort(private_data_data, struct winbindd_async_request);
-/*
- a hook called from the main winbindd select() loop to handle writes
- to the dual daemon pipe
-*/
-void dual_select(fd_set *fds)
+ 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);
+ return;
+ }
+
+ /* Request successfully sent to the child, setup the wait for reply */
+
+ setup_async_read(&state->child->event,
+ &state->response->result,
+ sizeof(state->response->result),
+ async_reply_recv, state);
+}
+
+static void async_reply_recv(void *private_data, BOOL success)
{
- int n;
+ struct winbindd_async_request *state =
+ talloc_get_type_abort(private_data, struct winbindd_async_request);
+ struct winbindd_child *child = state->child;
+
+ state->response->length = sizeof(struct winbindd_response);
- if (dual_daemon_pipe == -1 ||
- !dual_list ||
- !FD_ISSET(dual_daemon_pipe, fds)) {
+ if (!success) {
+ DEBUG(5, ("Could not receive async reply\n"));
+ state->response->result = WINBINDD_ERROR;
return;
}
- n = sys_write(dual_daemon_pipe,
- &dual_list->data[dual_list->offset],
- dual_list->length - dual_list->offset);
+ SMB_ASSERT(cache_retrieve_response(child->pid,
+ state->response));
- if (n <= 0) {
- /* the pipe is dead! fall back to normal operation */
- dual_daemon_pipe = -1;
+ cache_cleanup_response(child->pid);
+
+ DLIST_REMOVE(child->requests, state);
+
+ schedule_async_request(child);
+
+ state->continuation(state->private_data, True);
+}
+
+static BOOL fork_domain_child(struct winbindd_child *child);
+
+static void schedule_async_request(struct winbindd_child *child)
+{
+ struct winbindd_async_request *request = child->requests;
+
+ if (request == NULL) {
return;
}
- dual_list->offset += n;
+ if (child->event.flags != 0) {
+ return; /* Busy */
+ }
+
+ if ((child->pid == 0) && (!fork_domain_child(child))) {
+ /* Cancel all outstanding requests */
- if (dual_list->offset == dual_list->length) {
- struct dual_list *next;
- next = dual_list->next;
- free(dual_list->data);
- free(dual_list);
- dual_list = next;
- if (!dual_list) {
- dual_list_end = NULL;
+ while (request != NULL) {
+ /* request might be free'd in the continuation */
+ struct winbindd_async_request *next = request->next;
+ request->continuation(request->private_data, False);
+ request = next;
}
+ return;
}
+
+ setup_async_write(&child->event, request->request,
+ sizeof(*request->request),
+ async_main_request_sent, request);
+
+ talloc_destroy(child->mem_ctx);
+ return;
}
-/*
- send a request to the background daemon
- this is called for stale cached entries
-*/
-void dual_send_request(struct winbindd_cli_state *state)
+struct domain_request_state {
+ TALLOC_CTX *mem_ctx;
+ struct winbindd_domain *domain;
+ struct winbindd_request *request;
+ struct winbindd_response *response;
+ void (*continuation)(void *private_data_data, BOOL success);
+ void *private_data_data;
+};
+
+static void domain_init_recv(void *private_data_data, BOOL success);
+
+void async_domain_request(TALLOC_CTX *mem_ctx,
+ struct winbindd_domain *domain,
+ struct winbindd_request *request,
+ struct winbindd_response *response,
+ void (*continuation)(void *private_data_data, BOOL success),
+ void *private_data_data)
+{
+ struct domain_request_state *state;
+
+ if (domain->initialized) {
+ async_request(mem_ctx, &domain->child, request, response,
+ continuation, private_data_data);
+ return;
+ }
+
+ state = TALLOC_P(mem_ctx, struct domain_request_state);
+ if (state == NULL) {
+ DEBUG(0, ("talloc failed\n"));
+ continuation(private_data_data, False);
+ return;
+ }
+
+ state->mem_ctx = mem_ctx;
+ state->domain = domain;
+ state->request = request;
+ state->response = response;
+ state->continuation = continuation;
+ state->private_data_data = private_data_data;
+
+ init_child_connection(domain, domain_init_recv, state);
+}
+
+static void recvfrom_child(void *private_data_data, BOOL success)
+{
+ struct winbindd_cli_state *state =
+ talloc_get_type_abort(private_data_data, struct winbindd_cli_state);
+ enum winbindd_result result = state->response.result;
+
+ /* This is an optimization: The child has written directly to the
+ * response buffer. The request itself is still in pending state,
+ * state that in the result code. */
+
+ state->response.result = WINBINDD_PENDING;
+
+ if ((!success) || (result != WINBINDD_OK)) {
+ request_error(state);
+ return;
+ }
+
+ request_ok(state);
+}
+
+void sendto_child(struct winbindd_cli_state *state,
+ struct winbindd_child *child)
{
- struct dual_list *list;
+ async_request(state->mem_ctx, child, &state->request,
+ &state->response, recvfrom_child, state);
+}
- if (!background_process) return;
+void sendto_domain(struct winbindd_cli_state *state,
+ struct winbindd_domain *domain)
+{
+ async_domain_request(state->mem_ctx, domain,
+ &state->request, &state->response,
+ recvfrom_child, state);
+}
- list = malloc(sizeof(*list));
- if (!list) return;
+static void domain_init_recv(void *private_data_data, BOOL success)
+{
+ struct domain_request_state *state =
+ talloc_get_type_abort(private_data_data, struct domain_request_state);
- list->next = NULL;
- list->data = memdup(&state->request, sizeof(state->request));
- list->length = sizeof(state->request);
- list->offset = 0;
+ if (!success) {
+ DEBUG(5, ("Domain init returned an error\n"));
+ state->continuation(state->private_data_data, False);
+ return;
+ }
+
+ async_request(state->mem_ctx, &state->domain->child,
+ state->request, state->response,
+ state->continuation, state->private_data_data);
+}
+
+struct winbindd_child_dispatch_table {
+ enum winbindd_cmd cmd;
+ enum winbindd_result (*fn)(struct winbindd_domain *domain,
+ struct winbindd_cli_state *state);
+ const char *winbindd_cmd_name;
+};
+
+static struct winbindd_child_dispatch_table child_dispatch_table[] = {
- if (!dual_list_end) {
- dual_list = list;
- dual_list_end = list;
+ { WINBINDD_LOOKUPSID, winbindd_dual_lookupsid, "LOOKUPSID" },
+ { WINBINDD_LOOKUPNAME, winbindd_dual_lookupname, "LOOKUPNAME" },
+ { WINBINDD_LIST_TRUSTDOM, winbindd_dual_list_trusted_domains, "LIST_TRUSTDOM" },
+ { WINBINDD_INIT_CONNECTION, winbindd_dual_init_connection, "INIT_CONNECTION" },
+ { WINBINDD_GETDCNAME, winbindd_dual_getdcname, "GETDCNAME" },
+ { WINBINDD_SHOW_SEQUENCE, winbindd_dual_show_sequence, "SHOW_SEQUENCE" },
+ { WINBINDD_PAM_AUTH, winbindd_dual_pam_auth, "PAM_AUTH" },
+ { WINBINDD_PAM_AUTH_CRAP, winbindd_dual_pam_auth_crap, "AUTH_CRAP" },
+ { WINBINDD_PAM_LOGOFF, winbindd_dual_pam_logoff, "PAM_LOGOFF" },
+ { WINBINDD_CHECK_MACHACC, winbindd_dual_check_machine_acct, "CHECK_MACHACC" },
+ { WINBINDD_DUAL_SID2UID, winbindd_dual_sid2uid, "DUAL_SID2UID" },
+ { WINBINDD_DUAL_SID2GID, winbindd_dual_sid2gid, "DUAL_SID2GID" },
+ { WINBINDD_DUAL_UID2NAME, winbindd_dual_uid2name, "DUAL_UID2NAME" },
+ { WINBINDD_DUAL_NAME2UID, winbindd_dual_name2uid, "DUAL_NAME2UID" },
+ { WINBINDD_DUAL_GID2NAME, winbindd_dual_gid2name, "DUAL_GID2NAME" },
+ { WINBINDD_DUAL_NAME2GID, winbindd_dual_name2gid, "DUAL_NAME2GID" },
+ { WINBINDD_DUAL_IDMAPSET, winbindd_dual_idmapset, "DUAL_IDMAPSET" },
+ { WINBINDD_DUAL_USERINFO, winbindd_dual_userinfo, "DUAL_USERINFO" },
+ { WINBINDD_ALLOCATE_UID, winbindd_dual_allocate_uid, "ALLOCATE_UID" },
+ { WINBINDD_ALLOCATE_GID, winbindd_dual_allocate_gid, "ALLOCATE_GID" },
+ { WINBINDD_GETUSERDOMGROUPS, winbindd_dual_getuserdomgroups, "GETUSERDOMGROUPS" },
+ { WINBINDD_DUAL_GETSIDALIASES, winbindd_dual_getsidaliases, "GETSIDALIASES" },
+ /* End of list */
+
+ { WINBINDD_NUM_CMDS, NULL, "NONE" }
+};
+
+static void child_process_request(struct winbindd_domain *domain,
+ struct winbindd_cli_state *state)
+{
+ struct winbindd_child_dispatch_table *table;
+
+ /* Free response data - we may be interrupted and receive another
+ command before being able to send this data off. */
+
+ state->response.result = WINBINDD_ERROR;
+ state->response.length = sizeof(struct winbindd_response);
+
+ state->mem_ctx = talloc_init("winbind request");
+ if (state->mem_ctx == NULL)
+ return;
+
+ /* Process command */
+
+ for (table = child_dispatch_table; table->fn; table++) {
+ if (state->request.cmd == table->cmd) {
+ DEBUG(10,("process_request: request fn %s\n",
+ table->winbindd_cmd_name ));
+ state->response.result = table->fn(domain, state);
+ break;
+ }
+ }
+
+ if (!table->fn) {
+ DEBUG(10,("process_request: unknown request fn number %d\n",
+ (int)state->request.cmd ));
+ state->response.result = WINBINDD_ERROR;
+ }
+
+ talloc_destroy(state->mem_ctx);
+}
+
+void setup_domain_child(struct winbindd_domain *domain,
+ struct winbindd_child *child,
+ const char *explicit_logfile)
+{
+ if (explicit_logfile != NULL) {
+ pstr_sprintf(child->logfilename, "%s/log.winbindd-%s",
+ dyn_LOGFILEBASE, explicit_logfile);
+ } else if (domain != NULL) {
+ pstr_sprintf(child->logfilename, "%s/log.wb-%s",
+ dyn_LOGFILEBASE, domain->name);
} else {
- dual_list_end->next = list;
- dual_list_end = list;
+ smb_panic("Internal error: domain == NULL && "
+ "explicit_logfile == NULL");
}
- background_process = False;
+ child->domain = domain;
}
+struct winbindd_child *children = NULL;
-/*
-the main dual daemon
-*/
-void do_dual_daemon(void)
+void winbind_child_died(pid_t pid)
+{
+ struct winbindd_child *child;
+
+ for (child = children; child != NULL; child = child->next) {
+ if (child->pid == pid) {
+ break;
+ }
+ }
+
+ if (child == NULL) {
+ DEBUG(0, ("Unknown child %d died!\n", pid));
+ return;
+ }
+
+ remove_fd_event(&child->event);
+ close(child->event.fd);
+ child->event.fd = 0;
+ child->event.flags = 0;
+ child->pid = 0;
+
+ schedule_async_request(child);
+}
+
+/* Forward the online/offline messages to our children. */
+void winbind_msg_offline(int msg_type, struct process_id src, void *buf, size_t len)
+{
+ struct winbindd_child *child;
+
+ DEBUG(10,("winbind_msg_offline: got offline message.\n"));
+
+ if (!lp_winbind_offline_logon()) {
+ DEBUG(10,("winbind_msg_offline: rejecting offline message.\n"));
+ return;
+ }
+
+ /* Set our global state as offline. */
+ if (!set_global_winbindd_state_offline()) {
+ DEBUG(10,("winbind_msg_offline: offline request failed.\n"));
+ return;
+ }
+
+ for (child = children; child != NULL; child = child->next) {
+ DEBUG(10,("winbind_msg_offline: sending message to pid %u.\n",
+ (unsigned int)child->pid ));
+ message_send_pid(pid_to_procid(child->pid), MSG_WINBIND_OFFLINE, NULL, 0, False);
+ }
+}
+
+/* Forward the online/offline messages to our children. */
+void winbind_msg_online(int msg_type, struct process_id src, void *buf, size_t len)
+{
+ struct winbindd_child *child;
+
+ DEBUG(10,("winbind_msg_online: got online message.\n"));
+
+ if (!lp_winbind_offline_logon()) {
+ DEBUG(10,("winbind_msg_online: rejecting online message.\n"));
+ return;
+ }
+
+ /* Set our global state as online. */
+ set_global_winbindd_state_online();
+
+ for (child = children; child != NULL; child = child->next) {
+ DEBUG(10,("winbind_msg_online: sending message to pid %u.\n",
+ (unsigned int)child->pid ));
+ message_send_pid(pid_to_procid(child->pid), MSG_WINBIND_ONLINE, NULL, 0, False);
+ }
+}
+
+static void account_lockout_policy_handler(struct timed_event *te,
+ const struct timeval *now,
+ void *private_data)
+{
+ struct winbindd_child *child = private_data;
+
+ struct winbindd_methods *methods;
+ SAM_UNK_INFO_12 lockout_policy;
+ NTSTATUS result;
+
+ DEBUG(10,("account_lockout_policy_handler called\n"));
+
+ if (child->lockout_policy_event) {
+ TALLOC_FREE(child->lockout_policy_event);
+ }
+
+ methods = child->domain->methods;
+
+ result = methods->lockout_policy(child->domain, child->mem_ctx, &lockout_policy);
+ if (!NT_STATUS_IS_OK(result)) {
+ DEBUG(10,("account_lockout_policy_handler: failed to call lockout_policy\n"));
+ return;
+ }
+
+ child->lockout_policy_event = add_timed_event(child->mem_ctx,
+ timeval_current_ofs(3600, 0),
+ "account_lockout_policy_handler",
+ account_lockout_policy_handler,
+ child);
+}
+
+/* Deal with a request to go offline. */
+
+static void child_msg_offline(int msg_type, struct process_id src, void *buf, size_t len)
+{
+ struct winbindd_domain *domain;
+
+ DEBUG(5,("child_msg_offline received.\n"));
+
+ if (!lp_winbind_offline_logon()) {
+ DEBUG(10,("child_msg_offline: rejecting offline message.\n"));
+ return;
+ }
+
+ /* Set our global state as offline. */
+ if (!set_global_winbindd_state_offline()) {
+ DEBUG(10,("child_msg_offline: offline request failed.\n"));
+ return;
+ }
+
+ /* Mark all our domains as offline. */
+
+ for (domain = domain_list(); domain; domain = domain->next) {
+ DEBUG(5,("child_msg_offline: marking %s offline.\n", domain->name));
+ domain->online = False;
+ }
+}
+
+/* Deal with a request to go online. */
+
+static void child_msg_online(int msg_type, struct process_id src, void *buf, size_t len)
+{
+ struct winbindd_domain *domain;
+
+ DEBUG(5,("child_msg_online received.\n"));
+
+ if (!lp_winbind_offline_logon()) {
+ DEBUG(10,("child_msg_online: rejecting online message.\n"));
+ return;
+ }
+
+ /* Set our global state as online. */
+ set_global_winbindd_state_online();
+
+ winbindd_flush_nscd_cache();
+
+ /* Mark everything online - delete any negative cache entries
+ to force an immediate reconnect. */
+
+ for (domain = domain_list(); domain; domain = domain->next) {
+ DEBUG(5,("child_msg_online: marking %s online.\n", domain->name));
+ domain->online = True;
+ check_negative_conn_cache_timeout(domain->name, domain->dcname, 0);
+ }
+}
+
+static BOOL fork_domain_child(struct winbindd_child *child)
{
int fdpair[2];
struct winbindd_cli_state state;
+ extern BOOL override_logfile;
- if (pipe(fdpair) != 0) {
- return;
+ if (socketpair(AF_UNIX, SOCK_STREAM, 0, fdpair) != 0) {
+ DEBUG(0, ("Could not open child pipe: %s\n",
+ strerror(errno)));
+ return False;
}
ZERO_STRUCT(state);
state.pid = getpid();
- dual_daemon_pipe = fdpair[1];
- state.sock = fdpair[0];
+ /* Ensure we don't process messages whilst we're
+ changing the disposition for the child. */
+ message_block();
+
+ child->pid = sys_fork();
- if (fork() != 0) {
+ if (child->pid == -1) {
+ DEBUG(0, ("Could not fork: %s\n", strerror(errno)));
+ message_unblock();
+ return False;
+ }
+
+ if (child->pid != 0) {
+ /* Parent */
close(fdpair[0]);
- return;
+ child->next = child->prev = NULL;
+ DLIST_ADD(children, child);
+ child->event.fd = fdpair[1];
+ child->event.flags = 0;
+ child->requests = NULL;
+ add_fd_event(&child->event);
+ /* We're ok with online/offline messages now. */
+ message_unblock();
+ return True;
}
+
+ /* Child */
+
+ state.sock = fdpair[0];
close(fdpair[1]);
- if (winbind_setup_common() != 0) _exit(0);
+ /* tdb needs special fork handling */
+ if (tdb_reopen_all(1) == -1) {
+ DEBUG(0,("tdb_reopen_all failed.\n"));
+ _exit(0);
+ }
+
+ close_conns_after_fork();
+
+ if (!override_logfile) {
+ lp_set_logfile(child->logfilename);
+ reopen_logs();
+ }
+
+ /* Don't handle the same messages as our parent. */
+ message_deregister(MSG_SMB_CONF_UPDATED);
+ message_deregister(MSG_SHUTDOWN);
+ message_deregister(MSG_WINBIND_OFFLINE);
+ message_deregister(MSG_WINBIND_ONLINE);
+
+ /* The child is ok with online/offline messages now. */
+ message_unblock();
+
+ child->mem_ctx = talloc_init("child_mem_ctx");
+ if (child->mem_ctx == NULL) {
+ return False;
+ }
+
+ if (child->domain != NULL) {
+ /* We might be in the idmap child...*/
+ child->lockout_policy_event = add_timed_event(
+ child->mem_ctx, timeval_zero(),
+ "account_lockout_policy_handler",
+ account_lockout_policy_handler,
+ child);
+ }
- dual_daemon_pipe = -1;
- opt_dual_daemon = False;
+ /* Handle online/offline messages. */
+ message_register(MSG_WINBIND_OFFLINE,child_msg_offline);
+ message_register(MSG_WINBIND_ONLINE,child_msg_online);
while (1) {
+
+ int ret;
+ fd_set read_fds;
+ struct timeval t;
+ struct timeval *tp;
+ struct timeval now;
+
/* free up any talloc memory */
- lp_talloc_free();
- main_loop_talloc_free();
+ lp_TALLOC_FREE();
+ main_loop_TALLOC_FREE();
+
+ run_events();
+
+ GetTimeOfDay(&now);
+
+ tp = get_timed_events_timeout(&t, (time_t)-1);
+ if (tp) {
+ DEBUG(11,("select will use timeout of %d seconds\n", (int)tp->tv_sec));
+ }
+
+ /* Handle messages */
+
+ message_dispatch();
+
+ FD_ZERO(&read_fds);
+ FD_SET(state.sock, &read_fds);
+
+ ret = sys_select(state.sock + 1, &read_fds, NULL, NULL, tp);
+
+ if (ret == 0) {
+ DEBUG(11,("nothing is ready yet, continue\n"));
+ continue;
+ }
+
+ if (ret == -1 && errno == EINTR) {
+ /* We got a signal - continue. */
+ continue;
+ }
+
+ if (ret == -1 && errno != EINTR) {
+ DEBUG(0,("select error occured\n"));
+ perror("select");
+ return False;
+ }
/* fetch a request from the main daemon */
- winbind_client_read(&state);
+ child_read_request(&state);
if (state.finished) {
/* we lost contact with our parent */
exit(0);
}
- /* process full rquests */
- if (state.read_buf_len == sizeof(state.request)) {
- DEBUG(4,("dual daemon request %d\n", (int)state.request.cmd));
-
- /* special handling for the stateful requests */
- switch (state.request.cmd) {
- case WINBINDD_GETPWENT:
- winbindd_setpwent(&state);
- break;
-
- case WINBINDD_GETGRENT:
- case WINBINDD_GETGRLST:
- winbindd_setgrent(&state);
- break;
- default:
- break;
- }
-
- winbind_process_packet(&state);
- SAFE_FREE(state.response.extra_data);
-
- free_getent_state(state.getpwent_state);
- free_getent_state(state.getgrent_state);
- state.getpwent_state = NULL;
- state.getgrent_state = NULL;
+ DEBUG(4,("child daemon request %d\n", (int)state.request.cmd));
+
+ ZERO_STRUCT(state.response);
+ state.request.null_term = '\0';
+ child_process_request(child->domain, &state);
+
+ SAFE_FREE(state.request.extra_data.data);
+
+ cache_store_response(sys_getpid(), &state.response);
+
+ SAFE_FREE(state.response.extra_data.data);
+
+ /* We just send the result code back, the result
+ * structure needs to be fetched via the
+ * winbindd_cache. Hmm. That needs fixing... */
+
+ if (write_data(state.sock, (void *)&state.response.result,
+ sizeof(state.response.result)) !=
+ sizeof(state.response.result)) {
+ DEBUG(0, ("Could not write result\n"));
+ exit(1);
}
}
}
-
git.samba.org / tprouty / samba.git / blobdiff