source4/rpc_server/lsa/lsa_init.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    endpoint server for the lsarpc pipe
   5
   6    Copyright (C) Andrew Tridgell 2004
   7    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2007
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 #include "rpc_server/lsa/lsa.h"
  24
  25 NTSTATUS dcesrv_lsa_get_policy_state(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
  26                                      struct lsa_policy_state **_state)
  27 {
  28         struct lsa_policy_state *state;
  29         struct ldb_result *dom_res;
  30         const char *dom_attrs[] = {
  31                 "objectSid",
  32                 "objectGUID",
  33                 "nTMixedDomain",
  34                 "fSMORoleOwner",
  35                 NULL
  36         };
  37         char *p;
  38         int ret;
  39
  40         state = talloc(mem_ctx, struct lsa_policy_state);
  41         if (!state) {
  42                 return NT_STATUS_NO_MEMORY;
  43         }
  44
  45         /* make sure the sam database is accessible */
  46         state->sam_ldb = samdb_connect(state, dce_call->event_ctx, dce_call->conn->dce_ctx->lp_ctx, dce_call->conn->auth_state.session_info);
  47         if (state->sam_ldb == NULL) {
  48                 return NT_STATUS_INVALID_SYSTEM_SERVICE;
  49         }
  50
  51         /* and the privilege database */
  52         state->pdb = privilege_connect(state, dce_call->event_ctx, dce_call->conn->dce_ctx->lp_ctx);
  53         if (state->pdb == NULL) {
  54                 return NT_STATUS_INVALID_SYSTEM_SERVICE;
  55         }
  56
  57         /* work out the domain_dn - useful for so many calls its worth
  58            fetching here */
  59         state->domain_dn = ldb_get_default_basedn(state->sam_ldb);
  60         if (!state->domain_dn) {
  61                 return NT_STATUS_NO_MEMORY;
  62         }
  63
  64         /* work out the forest root_dn - useful for so many calls its worth
  65            fetching here */
  66         state->forest_dn = ldb_get_root_basedn(state->sam_ldb);
  67         if (!state->forest_dn) {
  68                 return NT_STATUS_NO_MEMORY;
  69         }
  70
  71         ret = ldb_search(state->sam_ldb, mem_ctx, &dom_res,
  72                          state->domain_dn, LDB_SCOPE_BASE, dom_attrs, NULL);
  73         if (ret != LDB_SUCCESS) {
  74                 return NT_STATUS_INVALID_SYSTEM_SERVICE;
  75         }
  76         if (dom_res->count != 1) {
  77                 return NT_STATUS_NO_SUCH_DOMAIN;
  78         }
  79
  80         state->domain_sid = samdb_result_dom_sid(state, dom_res->msgs[0], "objectSid");
  81         if (!state->domain_sid) {
  82                 return NT_STATUS_NO_SUCH_DOMAIN;
  83         }
  84
  85         state->domain_guid = samdb_result_guid(dom_res->msgs[0], "objectGUID");
  86
  87         state->mixed_domain = ldb_msg_find_attr_as_uint(dom_res->msgs[0], "nTMixedDomain", 0);
  88
  89         talloc_free(dom_res);
  90
  91         state->domain_name = lpcfg_sam_name(dce_call->conn->dce_ctx->lp_ctx);
  92
  93         state->domain_dns = ldb_dn_canonical_string(state, state->domain_dn);
  94         if (!state->domain_dns) {
  95                 return NT_STATUS_NO_SUCH_DOMAIN;
  96         }
  97         p = strchr(state->domain_dns, '/');
  98         if (p) {
  99                 *p = '\0';
 100         }
 101
 102         state->forest_dns = ldb_dn_canonical_string(state, state->forest_dn);
 103         if (!state->forest_dns) {
 104                 return NT_STATUS_NO_SUCH_DOMAIN;
 105         }
 106         p = strchr(state->forest_dns, '/');
 107         if (p) {
 108                 *p = '\0';
 109         }
 110
 111         /* work out the builtin_dn - useful for so many calls its worth
 112            fetching here */
 113         state->builtin_dn = samdb_search_dn(state->sam_ldb, state, state->domain_dn, "(objectClass=builtinDomain)");
 114         if (!state->builtin_dn) {
 115                 return NT_STATUS_NO_SUCH_DOMAIN;
 116         }
 117
 118         /* work out the system_dn - useful for so many calls its worth
 119            fetching here */
 120         state->system_dn = samdb_search_dn(state->sam_ldb, state,
 121                                            state->domain_dn, "(&(objectClass=container)(cn=System))");
 122         if (!state->system_dn) {
 123                 return NT_STATUS_NO_SUCH_DOMAIN;
 124         }
 125
 126         state->builtin_sid = dom_sid_parse_talloc(state, SID_BUILTIN);
 127         if (!state->builtin_sid) {
 128                 return NT_STATUS_NO_SUCH_DOMAIN;
 129         }
 130
 131         state->nt_authority_sid = dom_sid_parse_talloc(state, SID_NT_AUTHORITY);
 132         if (!state->nt_authority_sid) {
 133                 return NT_STATUS_NO_SUCH_DOMAIN;
 134         }
 135
 136         state->creator_owner_domain_sid = dom_sid_parse_talloc(state, SID_CREATOR_OWNER_DOMAIN);
 137         if (!state->creator_owner_domain_sid) {
 138                 return NT_STATUS_NO_SUCH_DOMAIN;
 139         }
 140
 141         state->world_domain_sid = dom_sid_parse_talloc(state, SID_WORLD_DOMAIN);
 142         if (!state->world_domain_sid) {
 143                 return NT_STATUS_NO_SUCH_DOMAIN;
 144         }
 145
 146         *_state = state;
 147
 148         return NT_STATUS_OK;
 149 }
 150
 151 /*
 152   lsa_OpenPolicy2
 153 */
 154 NTSTATUS dcesrv_lsa_OpenPolicy2(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
 155                                 struct lsa_OpenPolicy2 *r)
 156 {
 157         NTSTATUS status;
 158         struct lsa_policy_state *state;
 159         struct dcesrv_handle *handle;
 160
 161         ZERO_STRUCTP(r->out.handle);
 162
 163         if (r->in.attr != NULL &&
 164             r->in.attr->root_dir != NULL) {
 165                 /* MS-LSAD 3.1.4.4.1 */
 166                 return NT_STATUS_INVALID_PARAMETER;
 167         }
 168
 169         status = dcesrv_lsa_get_policy_state(dce_call, mem_ctx, &state);
 170         if (!NT_STATUS_IS_OK(status)) {
 171                 return status;
 172         }
 173
 174         handle = dcesrv_handle_new(dce_call->context, LSA_HANDLE_POLICY);
 175         if (!handle) {
 176                 return NT_STATUS_NO_MEMORY;
 177         }
 178
 179         handle->data = talloc_steal(handle, state);
 180
 181         /* need to check the access mask against - need ACLs - fails
 182            WSPP test */
 183         state->access_mask = r->in.access_mask;
 184         state->handle = handle;
 185         *r->out.handle = handle->wire_handle;
 186
 187         /* note that we have completely ignored the attr element of
 188            the OpenPolicy. As far as I can tell, this is what w2k3
 189            does */
 190
 191         return NT_STATUS_OK;
 192 }
 193
 194 /*
 195   lsa_OpenPolicy
 196   a wrapper around lsa_OpenPolicy2
 197 */
 198 NTSTATUS dcesrv_lsa_OpenPolicy(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
 199                                 struct lsa_OpenPolicy *r)
 200 {
 201         struct lsa_OpenPolicy2 r2;
 202
 203         r2.in.system_name = NULL;
 204         r2.in.attr = r->in.attr;
 205         r2.in.access_mask = r->in.access_mask;
 206         r2.out.handle = r->out.handle;
 207
 208         return dcesrv_lsa_OpenPolicy2(dce_call, mem_ctx, &r2);
 209 }
 210
 211