/* Unix SMB/CIFS implementation. Find and init a domain struct for a SID Copyright (C) Volker Lendecke 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 "libcli/composite/composite.h" #include "winbind/wb_server.h" #include "smbd/service_task.h" #include "winbind/wb_async_helpers.h" #include "libcli/security/security.h" #include "../lib/util/dlinklist.h" #include "param/param.h" static struct wbsrv_domain *find_domain_from_sid(struct wbsrv_service *service, const struct dom_sid *sid) { struct wbsrv_domain *domain; for (domain = service->domains; domain!=NULL; domain = domain->next) { if (dom_sid_equal(domain->info->sid, sid)) { break; } if (dom_sid_in_domain(domain->info->sid, sid)) { break; } } return domain; } struct sid2domain_state { struct composite_context *ctx; struct wbsrv_service *service; struct dom_sid *sid; struct wbsrv_domain *domain; }; static void sid2domain_recv_dom_info(struct composite_context *ctx); static void sid2domain_recv_name(struct composite_context *ctx); static void sid2domain_recv_trusted_dom_info(struct composite_context *ctx); static void sid2domain_recv_init(struct composite_context *ctx); struct composite_context *wb_sid2domain_send(TALLOC_CTX *mem_ctx, struct wbsrv_service *service, const struct dom_sid *sid) { struct composite_context *result, *ctx; struct sid2domain_state *state; result = composite_create(mem_ctx, service->task->event_ctx); if (result == NULL) goto failed; state = talloc(result, struct sid2domain_state); if (state == NULL) goto failed; state->ctx = result; result->private_data = state; state->service = service; state->sid = dom_sid_dup(state, sid); if (state->sid == NULL) goto failed; state->domain = find_domain_from_sid(service, sid); if (state->domain != NULL) { result->status = NT_STATUS_OK; composite_done(result); return result; } if (dom_sid_equal(service->primary_sid, sid) || dom_sid_in_domain(service->primary_sid, sid)) { ctx = wb_get_dom_info_send(state, service, lp_workgroup(service->task->lp_ctx), service->primary_sid); if (ctx == NULL) goto failed; ctx->async.fn = sid2domain_recv_dom_info; ctx->async.private_data = state; return result; } ctx = wb_cmd_lookupsid_send(state, service, state->sid); if (ctx == NULL) goto failed; composite_continue(result, ctx, sid2domain_recv_name, state); return result; failed: talloc_free(result); return NULL; } static void sid2domain_recv_dom_info(struct composite_context *ctx) { struct sid2domain_state *state = talloc_get_type(ctx->async.private_data, struct sid2domain_state); struct wb_dom_info *info; state->ctx->status = wb_get_dom_info_recv(ctx, state, &info); if (!composite_is_ok(state->ctx)) return; ctx = wb_init_domain_send(state, state->service, info); composite_continue(state->ctx, ctx, sid2domain_recv_init, state); } static void sid2domain_recv_name(struct composite_context *ctx) { struct sid2domain_state *state = talloc_get_type(ctx->async.private_data, struct sid2domain_state); struct wb_sid_object *name; state->ctx->status = wb_cmd_lookupsid_recv(ctx, state, &name); if (!composite_is_ok(state->ctx)) return; if (name->type == SID_NAME_UNKNOWN) { composite_error(state->ctx, NT_STATUS_NO_SUCH_DOMAIN); return; } if (name->type != SID_NAME_DOMAIN) { state->sid->num_auths -= 1; } ctx = wb_trusted_dom_info_send(state, state->service, name->domain, state->sid); composite_continue(state->ctx, ctx, sid2domain_recv_trusted_dom_info, state); } static void sid2domain_recv_trusted_dom_info(struct composite_context *ctx) { struct sid2domain_state *state = talloc_get_type(ctx->async.private_data, struct sid2domain_state); struct wb_dom_info *info; state->ctx->status = wb_trusted_dom_info_recv(ctx, state, &info); if (!composite_is_ok(state->ctx)) return; ctx = wb_init_domain_send(state, state->service, info); composite_continue(state->ctx, ctx, sid2domain_recv_init, state); } static void sid2domain_recv_init(struct composite_context *ctx) { struct sid2domain_state *state = talloc_get_type(ctx->async.private_data, struct sid2domain_state); struct wbsrv_domain *existing; state->ctx->status = wb_init_domain_recv(ctx, state, &state->domain); if (!composite_is_ok(state->ctx)) { DEBUG(10, ("Could not init domain\n")); return; } existing = find_domain_from_sid(state->service, state->sid); if (existing != NULL) { DEBUG(5, ("Initialized domain twice, dropping second one\n")); talloc_free(state->domain); state->domain = existing; } talloc_steal(state->service, state->domain); DLIST_ADD(state->service->domains, state->domain); composite_done(state->ctx); } NTSTATUS wb_sid2domain_recv(struct composite_context *ctx, struct wbsrv_domain **result) { NTSTATUS status = composite_wait(ctx); if (NT_STATUS_IS_OK(status)) { struct sid2domain_state *state = talloc_get_type(ctx->private_data, struct sid2domain_state); *result = state->domain; } talloc_free(ctx); return status; } NTSTATUS wb_sid2domain(TALLOC_CTX *mem_ctx, struct wbsrv_service *service, const struct dom_sid *sid, struct wbsrv_domain **result) { struct composite_context *c = wb_sid2domain_send(mem_ctx, service, sid); return wb_sid2domain_recv(c, result); }