/* Unix SMB/CIFS implementation. async implementation of WINBINDD_GETSIDALIASES Copyright (C) Volker Lendecke 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 "winbindd.h" #include "../libcli/security/security.h" struct winbindd_getsidaliases_state { struct dom_sid sid; uint32_t num_aliases; uint32_t *aliases; }; static bool parse_sidlist(TALLOC_CTX *mem_ctx, const char *sidstr, struct dom_sid **sids, uint32_t *num_sids); static void winbindd_getsidaliases_done(struct tevent_req *subreq); struct tevent_req *winbindd_getsidaliases_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct winbindd_cli_state *cli, struct winbindd_request *request) { struct tevent_req *req, *subreq; struct winbindd_getsidaliases_state *state; struct winbindd_domain *domain; uint32_t num_sids; struct dom_sid *sids; req = tevent_req_create(mem_ctx, &state, struct winbindd_getsidaliases_state); if (req == NULL) { return NULL; } /* Ensure null termination */ request->data.sid[sizeof(request->data.sid)-1]='\0'; DEBUG(3, ("getsidaliases %s\n", request->data.sid)); if (!string_to_sid(&state->sid, request->data.sid)) { DEBUG(1, ("Could not get convert sid %s from string\n", request->data.sid)); tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); return tevent_req_post(req, ev); } domain = find_domain_from_sid_noinit(&state->sid); if (domain == NULL) { DEBUG(1,("could not find domain entry for sid %s\n", request->data.sid)); tevent_req_nterror(req, NT_STATUS_NO_SUCH_DOMAIN); return tevent_req_post(req, ev); } num_sids = 0; sids = NULL; if (request->extra_data.data != NULL) { if (request->extra_data.data[request->extra_len-1] != '\0') { DEBUG(1, ("Got non-NULL terminated sidlist\n")); tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); return tevent_req_post(req, ev); } if (!parse_sidlist(state, request->extra_data.data, &sids, &num_sids)) { DEBUG(1, ("Could not parse SID list: %s\n", request->extra_data.data)); tevent_req_nterror(req, NT_STATUS_INVALID_PARAMETER); return tevent_req_post(req, ev); } } if (DEBUGLEVEL >= 10) { size_t i; for (i=0; i<num_sids; i++) { fstring sidstr; sid_to_fstring(sidstr, &sids[i]); DEBUGADD(10, ("%s\n", sidstr)); } } subreq = wb_lookupuseraliases_send(state, ev, domain, num_sids, sids); if (tevent_req_nomem(subreq, req)) { return tevent_req_post(req, ev); } tevent_req_set_callback(subreq, winbindd_getsidaliases_done, req); return req; } static void winbindd_getsidaliases_done(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data( subreq, struct tevent_req); struct winbindd_getsidaliases_state *state = tevent_req_data( req, struct winbindd_getsidaliases_state); NTSTATUS status; status = wb_lookupuseraliases_recv(subreq, state, &state->num_aliases, &state->aliases); TALLOC_FREE(subreq); if (!NT_STATUS_IS_OK(status)) { tevent_req_nterror(req, status); return; } tevent_req_done(req); } NTSTATUS winbindd_getsidaliases_recv(struct tevent_req *req, struct winbindd_response *response) { struct winbindd_getsidaliases_state *state = tevent_req_data( req, struct winbindd_getsidaliases_state); NTSTATUS status; int i; char *sidlist; if (tevent_req_is_nterror(req, &status)) { return status; } sidlist = talloc_strdup(response, ""); if (sidlist == NULL) { return NT_STATUS_NO_MEMORY; } for (i=0; i<state->num_aliases; i++) { struct dom_sid sid; fstring tmp; sid_compose(&sid, &state->sid, state->aliases[i]); sidlist = talloc_asprintf_append_buffer( sidlist, "%s\n", sid_to_fstring(tmp, &sid)); if (sidlist == NULL) { return NT_STATUS_NO_MEMORY; } } response->extra_data.data = sidlist; response->length += talloc_get_size(sidlist); response->data.num_entries = state->num_aliases; return NT_STATUS_OK; } static bool parse_sidlist(TALLOC_CTX *mem_ctx, const char *sidstr, struct dom_sid **sids, uint32_t *num_sids) { const char *p, *q; p = sidstr; if (p == NULL) return False; while (p[0] != '\0') { fstring tmp; size_t sidlen; struct dom_sid sid; q = strchr(p, '\n'); if (q == NULL) { DEBUG(0, ("Got invalid sidstr: %s\n", p)); return False; } sidlen = PTR_DIFF(q, p); if (sidlen >= sizeof(tmp)-1) { return false; } memcpy(tmp, p, sidlen); tmp[sidlen] = '\0'; q += 1; if (!string_to_sid(&sid, tmp)) { DEBUG(0, ("Could not parse sid %s\n", p)); return False; } if (!NT_STATUS_IS_OK(add_sid_to_array(mem_ctx, &sid, sids, num_sids))) { return False; } p = q; } return True; }