/* Unix SMB/CIFS implementation. Command backend for wbinfo -g Copyright (C) Kai Blin 2009 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" struct cmd_list_groups_state { struct composite_context *ctx; struct wbsrv_service *service; struct wbsrv_domain *domain; char *domain_name; uint32_t resume_index; char *result; uint32_t num_groups; }; static void cmd_list_groups_recv_domain(struct composite_context *ctx); static void cmd_list_groups_recv_group_list(struct composite_context *ctx); struct composite_context *wb_cmd_list_groups_send(TALLOC_CTX *mem_ctx, struct wbsrv_service *service, const char *domain_name) { struct composite_context *ctx, *result; struct cmd_list_groups_state *state; DEBUG(5, ("wb_cmd_list_groups_send called\n")); result = composite_create(mem_ctx, service->task->event_ctx); if (!result) return NULL; state = talloc(result, struct cmd_list_groups_state); if (composite_nomem(state, result)) return result; state->ctx = result; result->private_data = state; state->service = service; state->resume_index = 0; state->num_groups = 0; state->result = talloc_strdup(state, ""); if (composite_nomem(state->result, state->ctx)) return result; /*FIXME: We should look up the domain in the winbind request if it is * set, not just take the primary domain. However, I want to get the * libnet logic to work first. */ if (domain_name && *domain_name != '\0') { state->domain_name = talloc_strdup(state, domain_name); if (composite_nomem(state->domain_name, state->ctx)) return result; } else { state->domain_name = NULL; } ctx = wb_sid2domain_send(state, service, service->primary_sid); if (composite_nomem(ctx, state->ctx)) return result; composite_continue(state->ctx, ctx, cmd_list_groups_recv_domain, state); return result; } static void cmd_list_groups_recv_domain(struct composite_context *ctx) { struct cmd_list_groups_state *state = talloc_get_type( ctx->async.private_data, struct cmd_list_groups_state); struct wbsrv_domain *domain; struct libnet_GroupList *group_list; DEBUG(5, ("cmd_list_groups_recv_domain called\n")); state->ctx->status = wb_sid2domain_recv(ctx, &domain); if (!composite_is_ok(state->ctx)) return; /* we use this entry also for context purposes (libnet_GroupList) */ state->domain = domain; /* If this is non-null, we've looked up the domain given in the winbind * request, otherwise we'll just use the default name .*/ if (state->domain_name == NULL) { state->domain_name = talloc_strdup(state, state->domain->libnet_ctx->samr.name); if (composite_nomem(state->domain_name, state->ctx)) return; } group_list = talloc(state, struct libnet_GroupList); if (composite_nomem(group_list, state->ctx)) return; group_list->in.domain_name = state->domain_name; /* Rafal suggested that 128 is a good number here. I don't like magic * numbers too much, but for now it'll have to do. */ group_list->in.page_size = 128; group_list->in.resume_index = state->resume_index; ctx = libnet_GroupList_send(state->domain->libnet_ctx, state, group_list, NULL); composite_continue(state->ctx, ctx, cmd_list_groups_recv_group_list, state); } static void cmd_list_groups_recv_group_list(struct composite_context *ctx) { struct cmd_list_groups_state *state = talloc_get_type( ctx->async.private_data, struct cmd_list_groups_state); struct libnet_GroupList *group_list; NTSTATUS status; int i; DEBUG(5, ("cmd_list_groups_recv_group_list called\n")); group_list = talloc(state, struct libnet_GroupList); if (composite_nomem(group_list, state->ctx)) return; status = libnet_GroupList_recv(ctx, state, group_list); /* If NTSTATUS is neither OK nor MORE_ENTRIES, something broke */ if (!NT_STATUS_IS_OK(status) && !NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES) && !NT_STATUS_EQUAL(status, NT_STATUS_NO_MORE_ENTRIES)) { composite_error(state->ctx, status); return; } for (i = 0; i < group_list->out.count; ++i) { DEBUG(5, ("Appending group '%s'\n", group_list->out.groups[i].groupname)); state->result = talloc_asprintf_append_buffer(state->result, "%s,", group_list->out.groups[i].groupname); state->num_groups++; } /* If the status is OK, we're finished, there's no more groups. * So we'll trim off the trailing ',' and are done.*/ if (NT_STATUS_IS_OK(status)) { size_t str_len = strlen(state->result); DEBUG(5, ("list_GroupList_recv returned NT_STATUS_OK\n")); if (str_len > 0) { state->result[str_len - 1] = '\0'; } composite_done(state->ctx); return; } DEBUG(5, ("list_GroupList_recv returned NT_STATUS_MORE_ENTRIES\n")); /* Otherwise there's more groups to get, so call out to libnet and * continue on this function here. */ group_list->in.domain_name = state->domain_name; /* See comment above about the page size. 128 seems like a good default. */ group_list->in.page_size = 128; group_list->in.resume_index = group_list->out.resume_index; ctx = libnet_GroupList_send(state->domain->libnet_ctx, state,group_list, NULL); composite_continue(state->ctx, ctx, cmd_list_groups_recv_group_list, state); } NTSTATUS wb_cmd_list_groups_recv(struct composite_context *ctx, TALLOC_CTX *mem_ctx, uint32_t *extra_data_len, char **extra_data, uint32_t *num_groups) { NTSTATUS status = composite_wait(ctx); DEBUG(5, ("wb_cmd_list_groups_recv called\n")); if (NT_STATUS_IS_OK(status)) { struct cmd_list_groups_state *state = talloc_get_type( ctx->private_data, struct cmd_list_groups_state); *extra_data_len = strlen(state->result); *extra_data = talloc_steal(mem_ctx, state->result); *num_groups = state->num_groups; } talloc_free(ctx); return status; }