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/*
Unix SMB/CIFS implementation.
implement the DsWriteAccountSpn call
Copyright (C) Stefan Metzmacher 2009
Copyright (C) Andrew Tridgell 2010
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 "rpc_server/dcerpc_server.h"
#include "dsdb/samdb/samdb.h"
#include "rpc_server/drsuapi/dcesrv_drsuapi.h"
/*
drsuapi_DsWriteAccountSpn
*/
WERROR dcesrv_drsuapi_DsWriteAccountSpn(struct dcesrv_call_state *dce_call, TALLOC_CTX *mem_ctx,
struct drsuapi_DsWriteAccountSpn *r)
{
struct drsuapi_bind_state *b_state;
struct dcesrv_handle *h;
*r->out.level_out = r->in.level;
DCESRV_PULL_HANDLE_WERR(h, r->in.bind_handle, DRSUAPI_BIND_HANDLE);
b_state = h->data;
r->out.res = talloc(mem_ctx, union drsuapi_DsWriteAccountSpnResult);
W_ERROR_HAVE_NO_MEMORY(r->out.res);
switch (r->in.level) {
case 1: {
struct drsuapi_DsWriteAccountSpnRequest1 *req;
struct ldb_message *msg;
int count, i, ret;
struct ldb_result *res;
const char *attrs[] = { "servicePrincipalName", NULL };
struct ldb_message_element *el;
unsigned spn_count=0;
req = &r->in.req->req1;
count = req->count;
msg = ldb_msg_new(mem_ctx);
if (msg == NULL) {
return WERR_NOMEM;
}
msg->dn = ldb_dn_new(msg, b_state->sam_ctx, req->object_dn);
if ( ! ldb_dn_validate(msg->dn)) {
r->out.res->res1.status = WERR_OK;
return WERR_OK;
}
/* load the existing SPNs, as these are
* ignored for adds and deletes (see MS-DRSR
* section 4.1.28.3)
*/
ret = ldb_search(b_state->sam_ctx, msg, &res, msg->dn, LDB_SCOPE_BASE,
attrs, NULL);
if (ret != LDB_SUCCESS) {
DEBUG(0,("Failed to load existing SPNs on %s: %s\n",
ldb_dn_get_linearized(msg->dn),
ldb_errstring(b_state->sam_ctx)));
r->out.res->res1.status = WERR_DS_OBJ_NOT_FOUND;
return WERR_OK;
}
el = ldb_msg_find_element(res->msgs[0], "servicePrincipalName");
/* construct mods */
for (i = 0; i < count; i++) {
bool found = false;
int j;
for (j=0; el && j<el->num_values; j++) {
if (samdb_ldb_val_case_cmp(req->spn_names[i].str, &el->values[j]) == 0) {
found = true;
break;
}
}
if ((req->operation == DRSUAPI_DS_SPN_OPERATION_ADD && found) ||
(req->operation == DRSUAPI_DS_SPN_OPERATION_DELETE && !found)) {
continue;
}
ret = samdb_msg_add_string(b_state->sam_ctx,
msg, msg, "servicePrincipalName",
req->spn_names[i].str);
if (ret != LDB_SUCCESS) {
return WERR_NOMEM;
}
spn_count++;
}
if (msg->num_elements == 0) {
DEBUG(2,("No SPNs need changing on %s\n", ldb_dn_get_linearized(msg->dn)));
r->out.res->res1.status = WERR_OK;
return WERR_OK;
}
for (i=0;i<msg->num_elements;i++) {
switch (req->operation) {
case DRSUAPI_DS_SPN_OPERATION_ADD:
msg->elements[i].flags = LDB_FLAG_MOD_ADD;
break;
case DRSUAPI_DS_SPN_OPERATION_REPLACE:
msg->elements[i].flags = LDB_FLAG_MOD_REPLACE;
break;
case DRSUAPI_DS_SPN_OPERATION_DELETE:
msg->elements[i].flags = LDB_FLAG_MOD_DELETE;
break;
}
}
/* Apply to database */
ret = ldb_modify(b_state->sam_ctx, msg);
if (ret != 0) {
DEBUG(0,("Failed to modify SPNs on %s: %s\n",
ldb_dn_get_linearized(msg->dn),
ldb_errstring(b_state->sam_ctx)));
r->out.res->res1.status = WERR_ACCESS_DENIED;
} else {
DEBUG(2,("Modified %u SPNs on %s\n", spn_count, ldb_dn_get_linearized(msg->dn)));
r->out.res->res1.status = WERR_OK;
}
return WERR_OK;
}
}
return WERR_UNKNOWN_LEVEL;
}
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