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Diffstat (limited to 'source4/samba/service_task.c')
| -rw-r--r-- | source4/samba/service_task.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/source4/samba/service_task.c b/source4/samba/service_task.c new file mode 100644 index 0000000..d911027 --- /dev/null +++ b/source4/samba/service_task.c @@ -0,0 +1,140 @@ +/* + Unix SMB/CIFS implementation. + + helper functions for task based servers (nbtd, winbind etc) + + Copyright (C) Andrew Tridgell 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 Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" +#include "process_model.h" +#include "lib/messaging/irpc.h" +#include "param/param.h" +#include "librpc/gen_ndr/ndr_irpc_c.h" + +/* + terminate a task service +*/ +void task_server_terminate(struct task_server *task, const char *reason, bool fatal) +{ + struct tevent_context *event_ctx = task->event_ctx; + const struct model_ops *model_ops = task->model_ops; + if (fatal) { + DBG_ERR("task_server_terminate: [%s]\n", reason); + } else { + DBG_NOTICE("task_server_terminate: [%s]\n", reason); + } + + if (fatal && task->msg_ctx != NULL) { + struct dcerpc_binding_handle *irpc_handle; + struct samba_terminate r; + + irpc_handle = irpc_binding_handle_by_name(task, task->msg_ctx, + "samba", &ndr_table_irpc); + if (irpc_handle != NULL) { + /* Note: this makes use of nested event loops... */ + dcerpc_binding_handle_set_sync_ev(irpc_handle, event_ctx); + r.in.reason = reason; + dcerpc_samba_terminate_r(irpc_handle, task, &r); + } + } + + imessaging_cleanup(task->msg_ctx); + + model_ops->terminate_task( + event_ctx, task->lp_ctx, reason, fatal, task->process_context); + /* don't free this above, it might contain the 'reason' being printed */ + talloc_free(task); +} + +/* used for the callback from the process model code */ +struct task_state { + const struct service_details *service_details; + const struct model_ops *model_ops; +}; + + +/* + called by the process model code when the new task starts up. This then calls + the server specific startup code +*/ +static struct task_server *task_server_callback(struct tevent_context *event_ctx, + struct loadparm_context *lp_ctx, + struct server_id server_id, + void *private_data, + void *context) +{ + struct task_server *task; + NTSTATUS status = NT_STATUS_OK; + + struct task_state *state = talloc_get_type(private_data, struct task_state); + task = talloc(event_ctx, struct task_server); + if (task == NULL) return NULL; + + task->event_ctx = event_ctx; + task->model_ops = state->model_ops; + task->server_id = server_id; + task->lp_ctx = lp_ctx; + task->process_context = context; + + task->msg_ctx = imessaging_init(task, + task->lp_ctx, + task->server_id, + task->event_ctx); + if (!task->msg_ctx) { + task_server_terminate(task, "imessaging_init() failed", true); + return NULL; + } + + status = state->service_details->task_init(task); + if (!NT_STATUS_IS_OK(status)) { + return NULL; + } + return task; +} + +/* + startup a task based server +*/ +NTSTATUS task_server_startup(struct tevent_context *event_ctx, + struct loadparm_context *lp_ctx, + const char *service_name, + const struct model_ops *model_ops, + const struct service_details *service_details, + int from_parent_fd) +{ + struct task_state *state; + + state = talloc(event_ctx, struct task_state); + NT_STATUS_HAVE_NO_MEMORY(state); + + state->service_details = service_details; + state->model_ops = model_ops; + + state->model_ops->new_task(event_ctx, lp_ctx, service_name, + task_server_callback, state, service_details, + from_parent_fd); + + return NT_STATUS_OK; +} + +/* + setup a task title +*/ +void task_server_set_title(struct task_server *task, const char *title) +{ + task->model_ops->set_title(task->event_ctx, title); +} |