2 Unix SMB/CIFS implementation.
6 Copyright (C) Gerald (Jerry) Carter 2007
8 This library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public
10 License as published by the Free Software Foundation; either
11 version 3 of the License, or (at your option) any later version.
13 This library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Library General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 /* Required Headers */
25 #include "libwbclient.h"
26 #include "../winbind_client.h"
28 /* Convert a Windows SID to a Unix uid, allocating an uid if needed */
29 wbcErr wbcCtxSidToUid(struct wbcContext *ctx, const struct wbcDomainSid *sid,
36 wbc_status = WBC_ERR_INVALID_PARAM;
37 BAIL_ON_WBC_ERROR(wbc_status);
40 wbc_status = wbcCtxSidsToUnixIds(ctx, sid, 1, &xid);
41 if (!WBC_ERROR_IS_OK(wbc_status)) {
45 if ((xid.type == WBC_ID_TYPE_UID) || (xid.type == WBC_ID_TYPE_BOTH)) {
47 wbc_status = WBC_ERR_SUCCESS;
49 wbc_status = WBC_ERR_DOMAIN_NOT_FOUND;
56 wbcErr wbcSidToUid(const struct wbcDomainSid *sid, uid_t *puid)
58 return wbcCtxSidToUid(NULL, sid, puid);
61 /* Convert a Windows SID to a Unix uid if there already is a mapping */
62 wbcErr wbcQuerySidToUid(const struct wbcDomainSid *sid,
65 return WBC_ERR_NOT_IMPLEMENTED;
68 /* Convert a Unix uid to a Windows SID, allocating a SID if needed */
69 wbcErr wbcCtxUidToSid(struct wbcContext *ctx, uid_t uid,
70 struct wbcDomainSid *psid)
73 struct wbcDomainSid sid;
74 struct wbcDomainSid null_sid = { 0 };
78 wbc_status = WBC_ERR_INVALID_PARAM;
79 BAIL_ON_WBC_ERROR(wbc_status);
82 xid = (struct wbcUnixId) { .type = WBC_ID_TYPE_UID, .id.uid = uid };
84 wbc_status = wbcCtxUnixIdsToSids(ctx, &xid, 1, &sid);
85 if (!WBC_ERROR_IS_OK(wbc_status)) {
89 if (memcmp(&sid, &null_sid, sizeof(sid)) != 0) {
92 wbc_status = WBC_ERR_DOMAIN_NOT_FOUND;
99 wbcErr wbcUidToSid(uid_t uid, struct wbcDomainSid *sid)
101 return wbcCtxUidToSid(NULL, uid, sid);
104 /* Convert a Unix uid to a Windows SID if there already is a mapping */
105 wbcErr wbcQueryUidToSid(uid_t uid,
106 struct wbcDomainSid *sid)
108 return WBC_ERR_NOT_IMPLEMENTED;
111 /** @brief Convert a Windows SID to a Unix gid, allocating a gid if needed
113 * @param *sid Pointer to the domain SID to be resolved
114 * @param *pgid Pointer to the resolved gid_t value
120 wbcErr wbcCtxSidToGid(struct wbcContext *ctx, const struct wbcDomainSid *sid,
123 struct wbcUnixId xid;
127 wbc_status = WBC_ERR_INVALID_PARAM;
128 BAIL_ON_WBC_ERROR(wbc_status);
131 wbc_status = wbcCtxSidsToUnixIds(ctx, sid, 1, &xid);
132 if (!WBC_ERROR_IS_OK(wbc_status)) {
136 if ((xid.type == WBC_ID_TYPE_GID) || (xid.type == WBC_ID_TYPE_BOTH)) {
138 wbc_status = WBC_ERR_SUCCESS;
140 wbc_status = WBC_ERR_DOMAIN_NOT_FOUND;
147 wbcErr wbcSidToGid(const struct wbcDomainSid *sid, gid_t *pgid)
149 return wbcCtxSidToGid(NULL, sid, pgid);
152 /* Convert a Windows SID to a Unix gid if there already is a mapping */
154 wbcErr wbcQuerySidToGid(const struct wbcDomainSid *sid,
157 return WBC_ERR_NOT_IMPLEMENTED;
161 /* Convert a Unix gid to a Windows SID, allocating a SID if needed */
162 wbcErr wbcCtxGidToSid(struct wbcContext *ctx, gid_t gid,
163 struct wbcDomainSid *psid)
165 struct wbcUnixId xid;
166 struct wbcDomainSid sid;
167 struct wbcDomainSid null_sid = { 0 };
171 wbc_status = WBC_ERR_INVALID_PARAM;
172 BAIL_ON_WBC_ERROR(wbc_status);
175 xid = (struct wbcUnixId) { .type = WBC_ID_TYPE_GID, .id.gid = gid };
177 wbc_status = wbcCtxUnixIdsToSids(ctx, &xid, 1, &sid);
178 if (!WBC_ERROR_IS_OK(wbc_status)) {
182 if (memcmp(&sid, &null_sid, sizeof(sid)) != 0) {
185 wbc_status = WBC_ERR_DOMAIN_NOT_FOUND;
192 wbcErr wbcGidToSid(gid_t gid, struct wbcDomainSid *sid)
194 return wbcCtxGidToSid(NULL, gid, sid);
197 /* Convert a Unix gid to a Windows SID if there already is a mapping */
198 wbcErr wbcQueryGidToSid(gid_t gid,
199 struct wbcDomainSid *sid)
201 return WBC_ERR_NOT_IMPLEMENTED;
204 /* Obtain a new uid from Winbind */
205 wbcErr wbcCtxAllocateUid(struct wbcContext *ctx, uid_t *puid)
207 struct winbindd_request request;
208 struct winbindd_response response;
209 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
212 return WBC_ERR_INVALID_PARAM;
214 /* Initialise request */
216 ZERO_STRUCT(request);
217 ZERO_STRUCT(response);
221 wbc_status = wbcRequestResponsePriv(ctx, WINBINDD_ALLOCATE_UID,
222 &request, &response);
223 BAIL_ON_WBC_ERROR(wbc_status);
225 /* Copy out result */
226 *puid = response.data.uid;
228 wbc_status = WBC_ERR_SUCCESS;
234 wbcErr wbcAllocateUid(uid_t *puid)
236 return wbcCtxAllocateUid(NULL, puid);
239 /* Obtain a new gid from Winbind */
240 wbcErr wbcCtxAllocateGid(struct wbcContext *ctx, gid_t *pgid)
242 struct winbindd_request request;
243 struct winbindd_response response;
244 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
247 return WBC_ERR_INVALID_PARAM;
249 /* Initialise request */
251 ZERO_STRUCT(request);
252 ZERO_STRUCT(response);
256 wbc_status = wbcRequestResponsePriv(ctx, WINBINDD_ALLOCATE_GID,
257 &request, &response);
258 BAIL_ON_WBC_ERROR(wbc_status);
260 /* Copy out result */
261 *pgid = response.data.gid;
263 wbc_status = WBC_ERR_SUCCESS;
269 wbcErr wbcAllocateGid(gid_t *pgid)
271 return wbcCtxAllocateGid(NULL, pgid);
274 /* we can't include smb.h here... */
275 #define _ID_TYPE_UID 1
276 #define _ID_TYPE_GID 2
278 /* Set an user id mapping - not implemented any more */
279 wbcErr wbcSetUidMapping(uid_t uid, const struct wbcDomainSid *sid)
281 return WBC_ERR_NOT_IMPLEMENTED;
284 /* Set a group id mapping - not implemented any more */
285 wbcErr wbcSetGidMapping(gid_t gid, const struct wbcDomainSid *sid)
287 return WBC_ERR_NOT_IMPLEMENTED;
290 /* Remove a user id mapping - not implemented any more */
291 wbcErr wbcRemoveUidMapping(uid_t uid, const struct wbcDomainSid *sid)
293 return WBC_ERR_NOT_IMPLEMENTED;
296 /* Remove a group id mapping - not implemented any more */
297 wbcErr wbcRemoveGidMapping(gid_t gid, const struct wbcDomainSid *sid)
299 return WBC_ERR_NOT_IMPLEMENTED;
302 /* Set the highwater mark for allocated uids - not implemented any more */
303 wbcErr wbcSetUidHwm(uid_t uid_hwm)
305 return WBC_ERR_NOT_IMPLEMENTED;
308 /* Set the highwater mark for allocated gids - not implemented any more */
309 wbcErr wbcSetGidHwm(gid_t gid_hwm)
311 return WBC_ERR_NOT_IMPLEMENTED;
314 /* Convert a list of SIDs */
315 wbcErr wbcCtxSidsToUnixIds(struct wbcContext *ctx,
316 const struct wbcDomainSid *sids,
317 uint32_t num_sids, struct wbcUnixId *ids)
319 struct winbindd_request request;
320 struct winbindd_response response;
321 wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
322 int buflen, extra_len;
324 char *sidlist, *p, *extra_data;
326 buflen = num_sids * (WBC_SID_STRING_BUFLEN + 1) + 1;
328 sidlist = (char *)malloc(buflen);
329 if (sidlist == NULL) {
330 return WBC_ERR_NO_MEMORY;
335 for (i=0; i<num_sids; i++) {
339 remaining = buflen - (p - sidlist);
341 len = wbcSidToStringBuf(&sids[i], p, remaining);
342 if (len > remaining) {
344 return WBC_ERR_UNKNOWN_FAILURE;
352 ZERO_STRUCT(request);
353 ZERO_STRUCT(response);
355 request.extra_data.data = sidlist;
356 request.extra_len = p - sidlist;
358 wbc_status = wbcRequestResponse(ctx, WINBINDD_SIDS_TO_XIDS,
359 &request, &response);
361 if (!WBC_ERROR_IS_OK(wbc_status)) {
365 extra_len = response.length - sizeof(struct winbindd_response);
366 extra_data = (char *)response.extra_data.data;
368 if ((extra_len <= 0) || (extra_data[extra_len-1] != '\0')) {
369 goto wbc_err_invalid;
374 for (i=0; i<num_sids; i++) {
375 struct wbcUnixId *id = &ids[i];
380 id->type = WBC_ID_TYPE_UID;
381 id->id.uid = strtoul(p+1, &q, 10);
384 id->type = WBC_ID_TYPE_GID;
385 id->id.gid = strtoul(p+1, &q, 10);
388 id->type = WBC_ID_TYPE_BOTH;
389 id->id.uid = strtoul(p+1, &q, 10);
392 id->type = WBC_ID_TYPE_NOT_SPECIFIED;
396 if (q == NULL || q[0] != '\n') {
397 goto wbc_err_invalid;
401 wbc_status = WBC_ERR_SUCCESS;
405 wbc_status = WBC_ERR_INVALID_RESPONSE;
407 winbindd_free_response(&response);
411 wbcErr wbcSidsToUnixIds(const struct wbcDomainSid *sids, uint32_t num_sids,
412 struct wbcUnixId *ids)
414 return wbcCtxSidsToUnixIds(NULL, sids, num_sids, ids);
417 wbcErr wbcCtxUnixIdsToSids(struct wbcContext *ctx,
418 const struct wbcUnixId *ids, uint32_t num_ids,
419 struct wbcDomainSid *sids)
421 struct winbindd_request request;
422 struct winbindd_response response;
426 const size_t sidlen = (1 /* U/G */ + 10 /* 2^32 */ + 1 /* \n */);
430 if (num_ids > SIZE_MAX / sidlen) {
431 return WBC_ERR_NO_MEMORY; /* overflow */
433 buflen = num_ids * sidlen;
435 buflen += 1; /* trailing \0 */
437 return WBC_ERR_NO_MEMORY; /* overflow */
440 buf = malloc(buflen);
442 return WBC_ERR_NO_MEMORY;
447 for (i=0; i<num_ids; i++) {
448 const struct wbcUnixId *id = &ids[i];
452 case WBC_ID_TYPE_UID:
453 len = snprintf(buf+ofs, buflen-ofs, "U%"PRIu32"\n",
454 (uint32_t)id->id.uid);
456 case WBC_ID_TYPE_GID:
457 len = snprintf(buf+ofs, buflen-ofs, "G%"PRIu32"\n",
458 (uint32_t)id->id.gid);
462 return WBC_ERR_INVALID_PARAM;
465 if (len + ofs >= buflen) { /* >= for the terminating '\0' */
467 return WBC_ERR_UNKNOWN_FAILURE;
472 request = (struct winbindd_request) {
473 .extra_data.data = buf, .extra_len = ofs+1
475 response = (struct winbindd_response) {0};
477 wbc_status = wbcRequestResponse(ctx, WINBINDD_XIDS_TO_SIDS,
478 &request, &response);
480 if (!WBC_ERROR_IS_OK(wbc_status)) {
484 s = response.extra_data.data;
485 for (i=0; i<num_ids; i++) {
486 char *n = strchr(s, '\n');
493 wbc_status = wbcStringToSid(s, &sids[i]);
494 if (!WBC_ERROR_IS_OK(wbc_status)) {
495 sids[i] = (struct wbcDomainSid) {0};
500 wbc_status = WBC_ERR_SUCCESS;
502 winbindd_free_response(&response);
506 wbcErr wbcUnixIdsToSids(const struct wbcUnixId *ids, uint32_t num_ids,
507 struct wbcDomainSid *sids)
509 return wbcCtxUnixIdsToSids(NULL, ids, num_ids, sids);