/* Unix SMB/CIFS implementation. async gettoken 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 "librpc/gen_ndr/ndr_wbint_c.h" #include "../libcli/security/security.h" struct wb_gettoken_state { struct tevent_context *ev; struct dom_sid usersid; int num_sids; struct dom_sid *sids; }; static bool wb_add_rids_to_sids(TALLOC_CTX *mem_ctx, int *pnum_sids, struct dom_sid **psids, const struct dom_sid *domain_sid, int num_rids, uint32_t *rids); static void wb_gettoken_gotgroups(struct tevent_req *subreq); static void wb_gettoken_gotlocalgroups(struct tevent_req *subreq); static void wb_gettoken_gotbuiltins(struct tevent_req *subreq); struct tevent_req *wb_gettoken_send(TALLOC_CTX *mem_ctx, struct tevent_context *ev, const struct dom_sid *sid) { struct tevent_req *req, *subreq; struct wb_gettoken_state *state; struct winbindd_domain *domain; req = tevent_req_create(mem_ctx, &state, struct wb_gettoken_state); if (req == NULL) { return NULL; } sid_copy(&state->usersid, sid); state->ev = ev; domain = find_domain_from_sid_noinit(sid); if (domain == NULL) { DEBUG(5, ("Could not find domain from SID %s\n", sid_string_dbg(sid))); tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER); return tevent_req_post(req, ev); } if (lp_winbind_trusted_domains_only() && domain->primary) { DEBUG(7, ("wb_gettoken: My domain -- rejecting getgroups() " "for %s.\n", sid_string_tos(sid))); tevent_req_nterror(req, NT_STATUS_NO_SUCH_USER); return tevent_req_post(req, ev); } subreq = wb_lookupusergroups_send(state, ev, domain, &state->usersid); if (tevent_req_nomem(subreq, req)) { return tevent_req_post(req, ev); } tevent_req_set_callback(subreq, wb_gettoken_gotgroups, req); return req; } static void wb_gettoken_gotgroups(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data( subreq, struct tevent_req); struct wb_gettoken_state *state = tevent_req_data( req, struct wb_gettoken_state); struct dom_sid *sids; struct winbindd_domain *domain; NTSTATUS status; status = wb_lookupusergroups_recv(subreq, state, &state->num_sids, &state->sids); TALLOC_FREE(subreq); if (!NT_STATUS_IS_OK(status)) { tevent_req_nterror(req, status); return; } sids = talloc_realloc(state, state->sids, struct dom_sid, state->num_sids + 1); if (tevent_req_nomem(sids, req)) { return; } memmove(&sids[1], &sids[0], state->num_sids * sizeof(sids[0])); sid_copy(&sids[0], &state->usersid); state->num_sids += 1; state->sids = sids; /* * Expand our domain's aliases */ domain = find_domain_from_sid_noinit(get_global_sam_sid()); if (domain == NULL) { tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); return; } subreq = wb_lookupuseraliases_send(state, state->ev, domain, state->num_sids, state->sids); if (tevent_req_nomem(subreq, req)) { return; } tevent_req_set_callback(subreq, wb_gettoken_gotlocalgroups, req); } static void wb_gettoken_gotlocalgroups(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data( subreq, struct tevent_req); struct wb_gettoken_state *state = tevent_req_data( req, struct wb_gettoken_state); uint32_t num_rids; uint32_t *rids; struct winbindd_domain *domain; NTSTATUS status; status = wb_lookupuseraliases_recv(subreq, state, &num_rids, &rids); TALLOC_FREE(subreq); if (!NT_STATUS_IS_OK(status)) { tevent_req_nterror(req, status); return; } domain = find_domain_from_sid_noinit(get_global_sam_sid()); if (!wb_add_rids_to_sids(state, &state->num_sids, &state->sids, &domain->sid, num_rids, rids)) { tevent_req_nterror(req, NT_STATUS_NO_MEMORY); return; } TALLOC_FREE(rids); /* * Now expand the builtin groups */ domain = find_builtin_domain(); if (domain == NULL) { tevent_req_nterror(req, NT_STATUS_INTERNAL_ERROR); return; } subreq = wb_lookupuseraliases_send(state, state->ev, domain, state->num_sids, state->sids); if (tevent_req_nomem(subreq, req)) { return; } tevent_req_set_callback(subreq, wb_gettoken_gotbuiltins, req); } static void wb_gettoken_gotbuiltins(struct tevent_req *subreq) { struct tevent_req *req = tevent_req_callback_data( subreq, struct tevent_req); struct wb_gettoken_state *state = tevent_req_data( req, struct wb_gettoken_state); uint32_t num_rids; uint32_t *rids; NTSTATUS status; status = wb_lookupuseraliases_recv(subreq, state, &num_rids, &rids); TALLOC_FREE(subreq); if (!NT_STATUS_IS_OK(status)) { tevent_req_nterror(req, status); return; } if (!wb_add_rids_to_sids(state, &state->num_sids, &state->sids, &global_sid_Builtin, num_rids, rids)) { tevent_req_nterror(req, NT_STATUS_NO_MEMORY); return; } tevent_req_done(req); } NTSTATUS wb_gettoken_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx, int *num_sids, struct dom_sid **sids) { struct wb_gettoken_state *state = tevent_req_data( req, struct wb_gettoken_state); NTSTATUS status; if (tevent_req_is_nterror(req, &status)) { return status; } *num_sids = state->num_sids; *sids = talloc_move(mem_ctx, &state->sids); return NT_STATUS_OK; } static bool wb_add_rids_to_sids(TALLOC_CTX *mem_ctx, int *pnum_sids, struct dom_sid **psids, const struct dom_sid *domain_sid, int num_rids, uint32_t *rids) { struct dom_sid *sids; int i; sids = talloc_realloc(mem_ctx, *psids, struct dom_sid, *pnum_sids + num_rids); if (sids == NULL) { return false; } for (i=0; i<num_rids; i++) { sid_compose(&sids[i+*pnum_sids], domain_sid, rids[i]); } *pnum_sids += num_rids; *psids = sids; return true; }