r23055: Rewrite messages.c to use auto-generated marshalling in the tdb. I'm
[tprouty/samba.git] / source / nsswitch / winbindd_dual.c
index 1a1afcb404e5f196a96c6d71180f24cc8848275c..2e8ad154db39b03f73e47c23ef15a4c08e62fdf5 100644 (file)
@@ -34,6 +34,8 @@
 #undef DBGC_CLASS
 #define DBGC_CLASS DBGC_WINBIND
 
+extern BOOL override_logfile;
+
 /* Read some data from a client connection */
 
 static void child_read_request(struct winbindd_cli_state *state)
@@ -190,7 +192,12 @@ static void async_reply_recv(void *private_data, BOOL success)
 
        if (!success) {
                DEBUG(5, ("Could not receive async reply\n"));
+
+               cache_cleanup_response(child->pid);
+               DLIST_REMOVE(child->requests, state);
+
                state->response->result = WINBINDD_ERROR;
+               state->continuation(state->private_data, False);
                return;
        }
 
@@ -236,7 +243,6 @@ static void schedule_async_request(struct winbindd_child *child)
                          sizeof(*request->request),
                          async_main_request_sent, request);
 
-       talloc_destroy(child->mem_ctx);
        return;
 }
 
@@ -354,16 +360,22 @@ static struct winbindd_child_dispatch_table child_dispatch_table[] = {
        { WINBINDD_PAM_AUTH_CRAP,        winbindd_dual_pam_auth_crap,         "AUTH_CRAP" },
        { WINBINDD_PAM_LOGOFF,           winbindd_dual_pam_logoff,            "PAM_LOGOFF" },
        { WINBINDD_PAM_CHNG_PSWD_AUTH_CRAP,winbindd_dual_pam_chng_pswd_auth_crap,"CHNG_PSWD_AUTH_CRAP" },
+       { WINBINDD_PAM_CHAUTHTOK,        winbindd_dual_pam_chauthtok,         "PAM_CHAUTHTOK" },
        { 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" },
+#if 0   /* DISABLED until we fix the interface in Samba 3.0.26 --jerry */
+       { WINBINDD_DUAL_SIDS2XIDS,       winbindd_dual_sids2xids,             "DUAL_SIDS2XIDS" },
+#endif  /* end DISABLED */
        { WINBINDD_DUAL_UID2SID,         winbindd_dual_uid2sid,               "DUAL_UID2SID" },
        { WINBINDD_DUAL_GID2SID,         winbindd_dual_gid2sid,               "DUAL_GID2SID" },
        { 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_SET_MAPPING,     winbindd_dual_set_mapping,           "DUAL_SET_MAPPING" },
+       { WINBINDD_DUAL_SET_HWM,         winbindd_dual_set_hwm,               "DUAL_SET_HWMS" },
+       { WINBINDD_DUAL_DUMP_MAPS,       winbindd_dual_dump_maps,             "DUAL_DUMP_MAPS" },
        { 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" },
@@ -466,7 +478,11 @@ void winbindd_flush_negative_conn_cache(struct winbindd_domain *domain)
 
 /* Set our domains as offline and forward the offline message to our children. */
 
-void winbind_msg_offline(int msg_type, struct process_id src, void *buf, size_t len)
+void winbind_msg_offline(struct messaging_context *msg_ctx,
+                        void *private_data,
+                        uint32_t msg_type,
+                        struct server_id server_id,
+                        DATA_BLOB *data)
 {
        struct winbindd_child *child;
        struct winbindd_domain *domain;
@@ -494,7 +510,8 @@ void winbind_msg_offline(int msg_type, struct process_id src, void *buf, size_t
        }
 
        for (child = children; child != NULL; child = child->next) {
-               /* Don't send message to idmap child. */
+               /* Don't send message to idmap child.  We've already
+                  done so above. */
                if (!child->domain || (child == idmap_child())) {
                        continue;
                }
@@ -510,14 +527,20 @@ void winbind_msg_offline(int msg_type, struct process_id src, void *buf, size_t
                DEBUG(10,("winbind_msg_offline: sending message to pid %u for domain %s.\n",
                        (unsigned int)child->pid, domain->name ));
 
-               message_send_pid(pid_to_procid(child->pid), MSG_WINBIND_OFFLINE, child->domain->name,
-                       strlen(child->domain->name)+1, False);
+               messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
+                                  MSG_WINBIND_OFFLINE,
+                                  (uint8 *)child->domain->name,
+                                  strlen(child->domain->name)+1);
        }
 }
 
 /* Set our domains as online and forward the online message to our children. */
 
-void winbind_msg_online(int msg_type, struct process_id src, void *buf, size_t len)
+void winbind_msg_online(struct messaging_context *msg_ctx,
+                       void *private_data,
+                       uint32_t msg_type,
+                       struct server_id server_id,
+                       DATA_BLOB *data)
 {
        struct winbindd_child *child;
        struct winbindd_domain *domain;
@@ -544,6 +567,22 @@ void winbind_msg_online(int msg_type, struct process_id src, void *buf, size_t l
 
                winbindd_flush_negative_conn_cache(domain);
                set_domain_online_request(domain);
+
+               /* Send an online message to the idmap child when our
+                  primary domain comes back online */
+
+               if ( domain->primary ) {
+                       struct winbindd_child *idmap = idmap_child();
+                       
+                       if ( idmap->pid != 0 ) {
+                               messaging_send_buf(msg_ctx,
+                                                  pid_to_procid(idmap->pid), 
+                                                  MSG_WINBIND_ONLINE,
+                                                  (uint8 *)domain->name,
+                                                  strlen(domain->name)+1);
+                       }
+                       
+               }
        }
 
        for (child = children; child != NULL; child = child->next) {
@@ -563,13 +602,19 @@ void winbind_msg_online(int msg_type, struct process_id src, void *buf, size_t l
                DEBUG(10,("winbind_msg_online: sending message to pid %u for domain %s.\n",
                        (unsigned int)child->pid, child->domain->name ));
 
-               message_send_pid(pid_to_procid(child->pid), MSG_WINBIND_ONLINE, child->domain->name,
-                       strlen(child->domain->name)+1, False);
+               messaging_send_buf(msg_ctx, pid_to_procid(child->pid),
+                                  MSG_WINBIND_ONLINE,
+                                  (uint8 *)child->domain->name,
+                                  strlen(child->domain->name)+1);
        }
 }
 
 /* Forward the online/offline messages to our children. */
-void winbind_msg_onlinestatus(int msg_type, struct process_id src, void *buf, size_t len)
+void winbind_msg_onlinestatus(struct messaging_context *msg_ctx,
+                             void *private_data,
+                             uint32_t msg_type,
+                             struct server_id server_id,
+                             DATA_BLOB *data)
 {
        struct winbindd_child *child;
 
@@ -580,21 +625,24 @@ void winbind_msg_onlinestatus(int msg_type, struct process_id src, void *buf, si
                        DEBUG(10,("winbind_msg_onlinestatus: "
                                  "sending message to pid %u of primary domain.\n",
                                  (unsigned int)child->pid));
-                       message_send_pid(pid_to_procid(child->pid), 
-                                        MSG_WINBIND_ONLINESTATUS, buf, len, False);
+                       messaging_send_buf(msg_ctx, pid_to_procid(child->pid), 
+                                          MSG_WINBIND_ONLINESTATUS,
+                                          (uint8 *)data->data,
+                                          data->length);
                        break;
                }
        }
 }
 
 
-static void account_lockout_policy_handler(struct timed_event *te,
+static void account_lockout_policy_handler(struct event_context *ctx,
+                                          struct timed_event *te,
                                           const struct timeval *now,
                                           void *private_data)
 {
        struct winbindd_child *child =
                (struct winbindd_child *)private_data;
-
+       TALLOC_CTX *mem_ctx = NULL;
        struct winbindd_methods *methods;
        SAM_UNK_INFO_12 lockout_policy;
        NTSTATUS result;
@@ -605,15 +653,31 @@ static void account_lockout_policy_handler(struct timed_event *te,
                TALLOC_FREE(child->lockout_policy_event);
        }
 
+       if ( !winbindd_can_contact_domain( child->domain ) ) {
+               DEBUG(10,("account_lockout_policy_handler: Removing myself since I "
+                         "do not have an incoming trust to domain %s\n", 
+                         child->domain->name));
+
+               return;         
+       }
+
        methods = child->domain->methods;
 
-       result = methods->lockout_policy(child->domain, child->mem_ctx, &lockout_policy);
+       mem_ctx = talloc_init("account_lockout_policy_handler ctx");
+       if (!mem_ctx) {
+               result = NT_STATUS_NO_MEMORY;
+       } else {
+               result = methods->lockout_policy(child->domain, mem_ctx, &lockout_policy);
+       }
+
+       talloc_destroy(mem_ctx);
+
        if (!NT_STATUS_IS_OK(result)) {
-               DEBUG(10,("account_lockout_policy_handler: failed to call lockout_policy\n"));
-               return;
+               DEBUG(10,("account_lockout_policy_handler: lockout_policy failed error %s\n",
+                        nt_errstr(result)));
        }
 
-       child->lockout_policy_event = add_timed_event(child->mem_ctx, 
+       child->lockout_policy_event = event_add_timed(winbind_event_context(), NULL,
                                                      timeval_current_ofs(3600, 0),
                                                      "account_lockout_policy_handler",
                                                      account_lockout_policy_handler,
@@ -622,12 +686,16 @@ static void account_lockout_policy_handler(struct timed_event *te,
 
 /* Deal with a request to go offline. */
 
-static void child_msg_offline(int msg_type, struct process_id src, void *buf, size_t len)
+static void child_msg_offline(struct messaging_context *msg,
+                             void *private_data,
+                             uint32_t msg_type,
+                             struct server_id server_id,
+                             DATA_BLOB *data)
 {
        struct winbindd_domain *domain;
-       const char *domainname = (const char *)buf;
+       const char *domainname = (const char *)data->data;
 
-       if (buf == NULL || len == 0) {
+       if (data->data == NULL || data->length == 0) {
                return;
        }
 
@@ -638,12 +706,6 @@ static void child_msg_offline(int msg_type, struct process_id src, void *buf, si
                return;
        }
 
-       /* Set our global state as offline. */
-       if (!set_global_winbindd_state_offline()) {
-               DEBUG(10,("child_msg_offline: offline request failed.\n"));
-               return;
-       }
-
        /* Mark the requested domain offline. */
 
        for (domain = domain_list(); domain; domain = domain->next) {
@@ -659,12 +721,16 @@ static void child_msg_offline(int msg_type, struct process_id src, void *buf, si
 
 /* Deal with a request to go online. */
 
-static void child_msg_online(int msg_type, struct process_id src, void *buf, size_t len)
+static void child_msg_online(struct messaging_context *msg,
+                            void *private_data,
+                            uint32_t msg_type,
+                            struct server_id server_id,
+                            DATA_BLOB *data)
 {
        struct winbindd_domain *domain;
-       const char *domainname = (const char *)buf;
+       const char *domainname = (const char *)data->data;
 
-       if (buf == NULL || len == 0) {
+       if (data->data == NULL || data->length == 0) {
                return;
        }
 
@@ -720,19 +786,23 @@ static const char *collect_onlinestatus(TALLOC_CTX *mem_ctx)
        return buf;
 }
 
-static void child_msg_onlinestatus(int msg_type, struct process_id src, void *buf, size_t len)
+static void child_msg_onlinestatus(struct messaging_context *msg_ctx,
+                                  void *private_data,
+                                  uint32_t msg_type,
+                                  struct server_id server_id,
+                                  DATA_BLOB *data)
 {
        TALLOC_CTX *mem_ctx;
        const char *message;
-       struct process_id *sender;
+       struct server_id *sender;
        
        DEBUG(5,("winbind_msg_onlinestatus received.\n"));
 
-       if (!buf) {
+       if (!data->data) {
                return;
        }
 
-       sender = (struct process_id *)buf;
+       sender = (struct server_id *)data->data;
 
        mem_ctx = talloc_init("winbind_msg_onlinestatus");
        if (mem_ctx == NULL) {
@@ -745,8 +815,8 @@ static void child_msg_onlinestatus(int msg_type, struct process_id src, void *bu
                return;
        }
 
-       message_send_pid(*sender, MSG_WINBIND_ONLINESTATUS, 
-                        message, strlen(message) + 1, True);
+       messaging_send_buf(msg_ctx, *sender, MSG_WINBIND_ONLINESTATUS, 
+                          (uint8 *)message, strlen(message) + 1);
 
        talloc_destroy(mem_ctx);
 }
@@ -756,7 +826,6 @@ static BOOL fork_domain_child(struct winbindd_child *child)
        int fdpair[2];
        struct winbindd_cli_state state;
        struct winbindd_domain *domain;
-       extern BOOL override_logfile;
 
        if (socketpair(AF_UNIX, SOCK_STREAM, 0, fdpair) != 0) {
                DEBUG(0, ("Could not open child pipe: %s\n",
@@ -765,7 +834,10 @@ static BOOL fork_domain_child(struct winbindd_child *child)
        }
 
        ZERO_STRUCT(state);
-       state.pid = getpid();
+       state.pid = sys_getpid();
+
+       /* Stop zombies */
+       CatchChild();
 
        /* Ensure we don't process messages whilst we're
           changing the disposition for the child. */
@@ -812,33 +884,27 @@ static BOOL fork_domain_child(struct winbindd_child *child)
        }
 
        /* 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);
-       message_deregister(MSG_WINBIND_ONLINESTATUS);
+       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);
 
        /* 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 && lp_winbind_offline_logon()) {
-               /* 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);
-       }
-
        /* Handle online/offline messages. */
-       message_register(MSG_WINBIND_OFFLINE,child_msg_offline);
-       message_register(MSG_WINBIND_ONLINE,child_msg_online);
-       message_register(MSG_WINBIND_ONLINESTATUS,child_msg_onlinestatus);
+       messaging_register(winbind_messaging_context(), NULL,
+                          MSG_WINBIND_OFFLINE, child_msg_offline);
+       messaging_register(winbind_messaging_context(), NULL,
+                          MSG_WINBIND_ONLINE, child_msg_online);
+       messaging_register(winbind_messaging_context(), NULL,
+                          MSG_WINBIND_ONLINESTATUS, child_msg_onlinestatus);
 
        if ( child->domain ) {
                child->domain->startup = True;
@@ -859,7 +925,21 @@ static BOOL fork_domain_child(struct winbindd_child *child)
        /* Ensure we're not handling an event inherited from
           our parent. */
 
-       cancel_named_event("krb5_ticket_refresh_handler");
+       cancel_named_event(winbind_event_context(),
+                          "krb5_ticket_refresh_handler");
+
+       /* We might be in the idmap child...*/
+       if (child->domain && !(child->domain->internal) &&
+           lp_winbind_offline_logon()) {
+
+               set_domain_online_request(child->domain);
+
+               child->lockout_policy_event = event_add_timed(
+                       winbind_event_context(), NULL, timeval_zero(),
+                       "account_lockout_policy_handler",
+                       account_lockout_policy_handler,
+                       child);
+       }
 
        while (1) {
 
@@ -873,7 +953,7 @@ static BOOL fork_domain_child(struct winbindd_child *child)
                lp_TALLOC_FREE();
                main_loop_TALLOC_FREE();
 
-               run_events();
+               run_events(winbind_event_context(), 0, NULL, NULL);
 
                GetTimeOfDay(&now);
 
@@ -885,7 +965,7 @@ static BOOL fork_domain_child(struct winbindd_child *child)
                        child->domain->startup = False;
                }
 
-               tp = get_timed_events_timeout(&t);
+               tp = get_timed_events_timeout(winbind_event_context(), &t);
                if (tp) {
                        DEBUG(11,("select will use timeout of %u.%u seconds\n",
                                (unsigned int)tp->tv_sec, (unsigned int)tp->tv_usec ));
@@ -893,7 +973,7 @@ static BOOL fork_domain_child(struct winbindd_child *child)
 
                /* Handle messages */
 
-               message_dispatch();
+               message_dispatch(winbind_messaging_context());
 
                FD_ZERO(&read_fds);
                FD_SET(state.sock, &read_fds);