return NT_STATUS_NO_MEMORY;
}
- if ( (idmap_cache = idmap_cache_init(idmap_ctx)) == NULL ) {
- return NT_STATUS_UNSUCCESSFUL;
- }
-
return NT_STATUS_OK;
}
return dom->methods->set_mapping(dom, map);
}
-static NTSTATUS idmap_backends_unixids_to_sids(struct id_map **ids)
-{
- struct idmap_domain *dom;
- struct id_map **unmapped;
- struct id_map **_ids;
- TALLOC_CTX *ctx;
- NTSTATUS ret;
- int i, u, n;
-
- if (!ids || !*ids) {
- DEBUG(1, ("Invalid list of maps\n"));
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- ctx = talloc_named_const(NULL, 0, "idmap_backends_unixids_to_sids ctx");
- if ( ! ctx) {
- DEBUG(0, ("Out of memory!\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
- DEBUG(10, ("Query backends to map ids->sids\n"));
-
- /* start from the default (the last one) and then if there are still
- * unmapped entries cycle through the others */
-
- _ids = ids;
-
- unmapped = NULL;
- for (n = num_domains-1; n >= 0; n--) { /* cycle backwards */
-
- dom = idmap_domains[n];
-
- DEBUG(10, ("Query sids from domain %s\n", dom->name));
-
- ret = dom->methods->unixids_to_sids(dom, _ids);
- IDMAP_REPORT_RET(ret);
-
- unmapped = NULL;
-
- for (i = 0, u = 0; _ids[i]; i++) {
- if (_ids[i]->status != ID_MAPPED) {
- unmapped = talloc_realloc(ctx, unmapped,
- struct id_map *, u + 2);
- IDMAP_CHECK_ALLOC(unmapped);
- unmapped[u] = _ids[i];
- u++;
- }
- }
- if (unmapped) {
- /* terminate the unmapped list */
- unmapped[u] = NULL;
- } else { /* no more entries, get out */
- break;
- }
-
- _ids = unmapped;
-
- }
-
- if (unmapped) {
- /* there are still unmapped ids,
- * map them to the unix users/groups domains */
- /* except for expired entries,
- * these will be returned as valid (offline mode) */
- for (i = 0; unmapped[i]; i++) {
- if (unmapped[i]->status == ID_EXPIRED) continue;
- switch (unmapped[i]->xid.type) {
- case ID_TYPE_UID:
- uid_to_unix_users_sid(
- (uid_t)unmapped[i]->xid.id,
- unmapped[i]->sid);
- unmapped[i]->status = ID_MAPPED;
- break;
- case ID_TYPE_GID:
- gid_to_unix_groups_sid(
- (gid_t)unmapped[i]->xid.id,
- unmapped[i]->sid);
- unmapped[i]->status = ID_MAPPED;
- break;
- default: /* what?! */
- unmapped[i]->status = ID_UNKNOWN;
- break;
- }
- }
- }
-
- ret = NT_STATUS_OK;
-
-done:
- talloc_free(ctx);
- return ret;
-}
-
-static NTSTATUS idmap_backends_sids_to_unixids(struct id_map **ids)
-{
- struct id_map ***dom_ids;
- struct idmap_domain *dom;
- TALLOC_CTX *ctx;
- NTSTATUS ret;
- int i, *counters;
-
- if ( (ctx = talloc_named_const(NULL, 0, "be_sids_to_ids")) == NULL ) {
- DEBUG(1, ("failed to allocate talloc context, OOM?\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
- DEBUG(10, ("Query backends to map sids->ids\n"));
-
- /* split list per domain */
- if (num_domains == 0) {
- DEBUG(1, ("No domains available?\n"));
- return NT_STATUS_UNSUCCESSFUL;
- }
-
- dom_ids = TALLOC_ZERO_ARRAY(ctx, struct id_map **, num_domains);
- IDMAP_CHECK_ALLOC(dom_ids);
- counters = TALLOC_ZERO_ARRAY(ctx, int, num_domains);
- IDMAP_CHECK_ALLOC(counters);
-
- /* partition the requests by domain */
-
- for (i = 0; ids[i]; i++) {
- uint32 idx;
-
- if ((dom = find_idmap_domain_from_sid(ids[i]->sid)) == NULL) {
- /* no available idmap_domain. Move on */
- continue;
- }
-
- DEBUG(10,("SID %s is being handled by %s\n",
- sid_string_dbg(ids[i]->sid),
- dom ? dom->name : "none" ));
-
- idx = find_idmap_domain_index( dom );
- SMB_ASSERT( idx != -1 );
-
- dom_ids[idx] = talloc_realloc(ctx, dom_ids[idx],
- struct id_map *,
- counters[idx] + 2);
- IDMAP_CHECK_ALLOC(dom_ids[idx]);
-
- dom_ids[idx][counters[idx]] = ids[i];
- counters[idx]++;
- dom_ids[idx][counters[idx]] = NULL;
- }
-
- /* All the ids have been dispatched in the right queues.
- Let's cycle through the filled ones */
-
- for (i = 0; i < num_domains; i++) {
- if (dom_ids[i]) {
- dom = idmap_domains[i];
- DEBUG(10, ("Query ids from domain %s\n", dom->name));
- ret = dom->methods->sids_to_unixids(dom, dom_ids[i]);
- IDMAP_REPORT_RET(ret);
- }
- }
-
- /* ok all the backends have been contacted at this point */
- /* let's see if we have any unmapped SID left and act accordingly */
-
- for (i = 0; ids[i]; i++) {
- /* NOTE: this will NOT touch ID_EXPIRED entries that the backend
- * was not able to confirm/deny (offline mode) */
- if (ids[i]->status == ID_UNKNOWN ||
- ids[i]->status == ID_UNMAPPED) {
- /* ok this is an unmapped one, see if we can map it */
- ret = idmap_new_mapping(ctx, ids[i]);
- if (NT_STATUS_IS_OK(ret)) {
- /* successfully mapped */
- ids[i]->status = ID_MAPPED;
- } else
- if (NT_STATUS_EQUAL(ret, NT_STATUS_NONE_MAPPED)) {
- /* could not map it */
- ids[i]->status = ID_UNMAPPED;
- } else {
- /* Something very bad happened down there
- * OR we are offline */
- ids[i]->status = ID_UNKNOWN;
- }
- }
- }
-
- ret = NT_STATUS_OK;
-
-done:
- talloc_free(ctx);
- return ret;
-}
-
NTSTATUS idmap_backends_unixid_to_sid(struct id_map *id)
{
struct id_map *maps[2];
return dom->methods->sids_to_unixids(dom, maps);
}
-/**************************************************************************
- idmap interface functions
-**************************************************************************/
-
-NTSTATUS idmap_unixids_to_sids(struct id_map **ids)
-{
- TALLOC_CTX *ctx;
- NTSTATUS ret;
- struct id_map **bids;
- int i, bi;
- int bn = 0;
- struct winbindd_domain *our_domain = find_our_domain();
-
- if (! NT_STATUS_IS_OK(ret = idmap_init())) {
- return ret;
- }
-
- if (!ids || !*ids) {
- DEBUG(1, ("Invalid list of maps\n"));
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- ctx = talloc_named_const(NULL, 0, "idmap_unixids_to_sids ctx");
- if ( ! ctx) {
- DEBUG(1, ("failed to allocate talloc context, OOM?\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
- /* no ids to be asked to the backends by default */
- bids = NULL;
- bi = 0;
-
- for (i = 0; ids[i]; i++) {
-
- if ( ! ids[i]->sid) {
- DEBUG(1, ("invalid null SID in id_map array"));
- talloc_free(ctx);
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- ret = idmap_cache_map_id(idmap_cache, ids[i]);
-
- if (NT_STATUS_IS_OK(ret)) continue;
-
- if ( ! bids) {
- /* alloc space for ids to be resolved by
- * backends (realloc ten by ten) */
- bids = TALLOC_ARRAY(ctx, struct id_map *, 10);
- if ( ! bids) {
- DEBUG(1, ("Out of memory!\n"));
- talloc_free(ctx);
- return NT_STATUS_NO_MEMORY;
- }
- bn = 10;
- }
-
- /* add this id to the ones to be retrieved
- * from the backends */
- bids[bi] = ids[i];
- bi++;
-
- /* check if we need to allocate new space
- * on the rids array */
- if (bi == bn) {
- bn += 10;
- bids = talloc_realloc(ctx, bids, struct id_map *, bn);
- if ( ! bids) {
- DEBUG(1, ("Out of memory!\n"));
- talloc_free(ctx);
- return NT_STATUS_NO_MEMORY;
- }
- }
-
- /* make sure the last element is NULL */
- bids[bi] = NULL;
- }
-
- /* let's see if there is any id mapping to be retrieved
- * from the backends */
- if (bids) {
- bool online;
-
- /* Only do query if we are online */
- online = !IS_DOMAIN_OFFLINE(our_domain);
- if (online) {
- ret = idmap_backends_unixids_to_sids(bids);
- IDMAP_CHECK_RET(ret);
- }
-
- /* update the cache */
- for (i = 0; i < bi; i++) {
- if (bids[i]->status == ID_MAPPED) {
- ret = idmap_cache_set(idmap_cache, bids[i]);
- } else if (bids[i]->status == ID_EXPIRED) {
- /* the cache returned an expired entry and the
- * backend was not able to clear the situation
- * (offline). This handles a previous
- * NT_STATUS_SYNCHRONIZATION_REQUIRED
- * for disconnected mode, */
- bids[i]->status = ID_MAPPED;
- } else if (bids[i]->status == ID_UNKNOWN) {
- /* something bad here. We were not able to
- * handle this for some reason, mark it as
- * unmapped and hope next time things will
- * settle down. */
- bids[i]->status = ID_UNMAPPED;
- } else if (online) { /* unmapped */
- ret = idmap_cache_set_negative_id(idmap_cache,
- bids[i]);
- }
- IDMAP_CHECK_RET(ret);
- }
- }
-
- ret = NT_STATUS_OK;
-done:
- talloc_free(ctx);
- return ret;
-}
-
-NTSTATUS idmap_sids_to_unixids(struct id_map **ids)
-{
- TALLOC_CTX *ctx;
- NTSTATUS ret;
- struct id_map **bids;
- int i, bi;
- int bn = 0;
- struct winbindd_domain *our_domain = find_our_domain();
-
- if (! NT_STATUS_IS_OK(ret = idmap_init())) {
- return ret;
- }
-
- if (!ids || !*ids) {
- DEBUG(1, ("Invalid list of maps\n"));
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- ctx = talloc_named_const(NULL, 0, "idmap_sids_to_unixids ctx");
- if ( ! ctx) {
- DEBUG(1, ("failed to allocate talloc context, OOM?\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
- /* no ids to be asked to the backends by default */
- bids = NULL;
- bi = 0;
-
- for (i = 0; ids[i]; i++) {
-
- if ( ! ids[i]->sid) {
- DEBUG(1, ("invalid null SID in id_map array\n"));
- talloc_free(ctx);
- return NT_STATUS_INVALID_PARAMETER;
- }
-
- ret = idmap_cache_map_sid(idmap_cache, ids[i]);
-
- if (NT_STATUS_IS_OK(ret)) continue;
-
- if ( ! bids) {
- /* alloc space for ids to be resolved
- by backends (realloc ten by ten) */
- bids = TALLOC_ARRAY(ctx, struct id_map *, 10);
- if ( ! bids) {
- DEBUG(1, ("Out of memory!\n"));
- talloc_free(ctx);
- return NT_STATUS_NO_MEMORY;
- }
- bn = 10;
- }
-
- /* add this id to the ones to be retrieved
- * from the backends */
- bids[bi] = ids[i];
- bi++;
-
- /* check if we need to allocate new space
- * on the ids array */
- if (bi == bn) {
- bn += 10;
- bids = talloc_realloc(ctx, bids, struct id_map *, bn);
- if ( ! bids) {
- DEBUG(1, ("Out of memory!\n"));
- talloc_free(ctx);
- return NT_STATUS_NO_MEMORY;
- }
- }
-
- /* make sure the last element is NULL */
- bids[bi] = NULL;
- }
-
- /* let's see if there is any id mapping to be retrieved
- * from the backends */
- if (bids) {
- bool online;
-
- /* Only do query if we are online */
- online = !IS_DOMAIN_OFFLINE(our_domain);
- if (online) {
- ret = idmap_backends_sids_to_unixids(bids);
- IDMAP_CHECK_RET(ret);
- }
-
- /* update the cache */
- for (i = 0; bids[i]; i++) {
- if (bids[i]->status == ID_MAPPED) {
- ret = idmap_cache_set(idmap_cache, bids[i]);
- } else if (bids[i]->status == ID_EXPIRED) {
- /* the cache returned an expired entry and the
- * backend was not able to clear the situation
- * (offline). This handles a previous
- * NT_STATUS_SYNCHRONIZATION_REQUIRED
- * for disconnected mode, */
- bids[i]->status = ID_MAPPED;
- } else if (bids[i]->status == ID_UNKNOWN) {
- /* something bad here. We were not able to
- * handle this for some reason, mark it as
- * unmapped and hope next time things will
- * settle down. */
- bids[i]->status = ID_UNMAPPED;
- } else if (online) { /* unmapped */
- ret = idmap_cache_set_negative_sid(idmap_cache,
- bids[i]);
- }
- IDMAP_CHECK_RET(ret);
- }
- }
-
- ret = NT_STATUS_OK;
-done:
- talloc_free(ctx);
- return ret;
-}
-
NTSTATUS idmap_set_mapping(const struct id_map *id)
{
TALLOC_CTX *ctx;
ret = idmap_backends_set_mapping(id);
IDMAP_CHECK_RET(ret);
- /* set the mapping in the cache */
- ret = idmap_cache_set(idmap_cache, id);
- IDMAP_CHECK_RET(ret);
-
done:
talloc_free(ctx);
return ret;
#include "includes.h"
#include "winbindd.h"
-#define TIMEOUT_LEN 12
-#define IDMAP_CACHE_DATA_FMT "%12u/%s"
-#define IDMAP_READ_CACHE_DATA_FMT_TEMPLATE "%%12u/%%%us"
-
-struct idmap_cache_ctx {
- TDB_CONTEXT *tdb;
-};
-
-static int idmap_cache_destructor(struct idmap_cache_ctx *cache)
-{
- int ret = 0;
-
- if (cache && cache->tdb) {
- ret = tdb_close(cache->tdb);
- cache->tdb = NULL;
- }
-
- return ret;
-}
-
-struct idmap_cache_ctx *idmap_cache_init(TALLOC_CTX *memctx)
-{
- struct idmap_cache_ctx *cache;
- char* cache_fname = NULL;
-
- cache = talloc(memctx, struct idmap_cache_ctx);
- if ( ! cache) {
- DEBUG(0, ("Out of memory!\n"));
- return NULL;
- }
-
- cache_fname = lock_path("idmap_cache.tdb");
-
- DEBUG(10, ("Opening cache file at %s\n", cache_fname));
-
- cache->tdb = tdb_open_log(cache_fname, 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
-
- if (!cache->tdb) {
- DEBUG(5, ("Attempt to open %s has failed.\n", cache_fname));
- return NULL;
- }
-
- talloc_set_destructor(cache, idmap_cache_destructor);
-
- return cache;
-}
-
-static NTSTATUS idmap_cache_build_sidkey(TALLOC_CTX *ctx, char **sidkey,
- const struct id_map *id)
-{
- fstring sidstr;
-
- *sidkey = talloc_asprintf(ctx, "IDMAP/SID/%s",
- sid_to_fstring(sidstr, id->sid));
- if ( ! *sidkey) {
- DEBUG(1, ("failed to build sidkey, OOM?\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
- return NT_STATUS_OK;
-}
-
-static NTSTATUS idmap_cache_build_idkey(TALLOC_CTX *ctx, char **idkey,
- const struct id_map *id)
-{
- *idkey = talloc_asprintf(ctx, "IDMAP/%s/%lu",
- (id->xid.type==ID_TYPE_UID)?"UID":"GID",
- (unsigned long)id->xid.id);
- if ( ! *idkey) {
- DEBUG(1, ("failed to build idkey, OOM?\n"));
- return NT_STATUS_NO_MEMORY;
- }
-
- return NT_STATUS_OK;
-}
-
-NTSTATUS idmap_cache_set(struct idmap_cache_ctx *cache, const struct id_map *id)
-{
- NTSTATUS ret;
- time_t timeout = time(NULL) + lp_idmap_cache_time();
- TDB_DATA databuf;
- char *sidkey;
- char *idkey;
- char *valstr;
-
- /* Don't cache lookups in the S-1-22-{1,2} domain */
- if ( (id->xid.type == ID_TYPE_UID) &&
- sid_check_is_in_unix_users(id->sid) )
- {
- return NT_STATUS_OK;
- }
- if ( (id->xid.type == ID_TYPE_GID) &&
- sid_check_is_in_unix_groups(id->sid) )
- {
- return NT_STATUS_OK;
- }
-
-
- ret = idmap_cache_build_sidkey(cache, &sidkey, id);
- if (!NT_STATUS_IS_OK(ret)) return ret;
-
- /* use sidkey as the local memory ctx */
- ret = idmap_cache_build_idkey(sidkey, &idkey, id);
- if (!NT_STATUS_IS_OK(ret)) {
- goto done;
- }
-
- /* save SID -> ID */
-
- /* use sidkey as the local memory ctx */
- valstr = talloc_asprintf(sidkey, IDMAP_CACHE_DATA_FMT, (int)timeout, idkey);
- if (!valstr) {
- DEBUG(0, ("Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto done;
- }
-
- databuf = string_term_tdb_data(valstr);
- DEBUG(10, ("Adding cache entry with key = %s; value = %s and timeout ="
- " %s (%d seconds %s)\n", sidkey, valstr , ctime(&timeout),
- (int)(timeout - time(NULL)),
- timeout > time(NULL) ? "ahead" : "in the past"));
-
- if (tdb_store_bystring(cache->tdb, sidkey, databuf, TDB_REPLACE) != 0) {
- DEBUG(3, ("Failed to store cache entry!\n"));
- ret = NT_STATUS_UNSUCCESSFUL;
- goto done;
- }
-
- /* save ID -> SID */
-
- /* use sidkey as the local memory ctx */
- valstr = talloc_asprintf(sidkey, IDMAP_CACHE_DATA_FMT, (int)timeout, sidkey);
- if (!valstr) {
- DEBUG(0, ("Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto done;
- }
-
- databuf = string_term_tdb_data(valstr);
- DEBUG(10, ("Adding cache entry with key = %s; value = %s and timeout ="
- " %s (%d seconds %s)\n", idkey, valstr, ctime(&timeout),
- (int)(timeout - time(NULL)),
- timeout > time(NULL) ? "ahead" : "in the past"));
-
- if (tdb_store_bystring(cache->tdb, idkey, databuf, TDB_REPLACE) != 0) {
- DEBUG(3, ("Failed to store cache entry!\n"));
- ret = NT_STATUS_UNSUCCESSFUL;
- goto done;
- }
-
- ret = NT_STATUS_OK;
-
-done:
- talloc_free(sidkey);
- return ret;
-}
-
-NTSTATUS idmap_cache_set_negative_sid(struct idmap_cache_ctx *cache, const struct id_map *id)
-{
- NTSTATUS ret;
- time_t timeout = time(NULL) + lp_idmap_negative_cache_time();
- TDB_DATA databuf;
- char *sidkey;
- char *valstr;
-
- ret = idmap_cache_build_sidkey(cache, &sidkey, id);
- if (!NT_STATUS_IS_OK(ret)) return ret;
-
- /* use sidkey as the local memory ctx */
- valstr = talloc_asprintf(sidkey, IDMAP_CACHE_DATA_FMT, (int)timeout, "IDMAP/NEGATIVE");
- if (!valstr) {
- DEBUG(0, ("Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto done;
- }
-
- databuf = string_term_tdb_data(valstr);
- DEBUG(10, ("Adding cache entry with key = %s; value = %s and timeout ="
- " %s (%d seconds %s)\n", sidkey, valstr, ctime(&timeout),
- (int)(timeout - time(NULL)),
- timeout > time(NULL) ? "ahead" : "in the past"));
-
- if (tdb_store_bystring(cache->tdb, sidkey, databuf, TDB_REPLACE) != 0) {
- DEBUG(3, ("Failed to store cache entry!\n"));
- ret = NT_STATUS_UNSUCCESSFUL;
- goto done;
- }
-
-done:
- talloc_free(sidkey);
- return ret;
-}
-
-NTSTATUS idmap_cache_set_negative_id(struct idmap_cache_ctx *cache, const struct id_map *id)
-{
- NTSTATUS ret;
- time_t timeout = time(NULL) + lp_idmap_negative_cache_time();
- TDB_DATA databuf;
- char *idkey;
- char *valstr;
-
- ret = idmap_cache_build_idkey(cache, &idkey, id);
- if (!NT_STATUS_IS_OK(ret)) return ret;
-
- /* use idkey as the local memory ctx */
- valstr = talloc_asprintf(idkey, IDMAP_CACHE_DATA_FMT, (int)timeout, "IDMAP/NEGATIVE");
- if (!valstr) {
- DEBUG(0, ("Out of memory!\n"));
- ret = NT_STATUS_NO_MEMORY;
- goto done;
- }
-
- databuf = string_term_tdb_data(valstr);
- DEBUG(10, ("Adding cache entry with key = %s; value = %s and timeout ="
- " %s (%d seconds %s)\n", idkey, valstr, ctime(&timeout),
- (int)(timeout - time(NULL)),
- timeout > time(NULL) ? "ahead" : "in the past"));
-
- if (tdb_store_bystring(cache->tdb, idkey, databuf, TDB_REPLACE) != 0) {
- DEBUG(3, ("Failed to store cache entry!\n"));
- ret = NT_STATUS_UNSUCCESSFUL;
- goto done;
- }
-
-done:
- talloc_free(idkey);
- return ret;
-}
-
-static NTSTATUS idmap_cache_fill_map(struct id_map *id, const char *value)
-{
- char *rem;
-
- /* see if it is a sid */
- if ( ! strncmp("IDMAP/SID/", value, 10)) {
-
- if ( ! string_to_sid(id->sid, &value[10])) {
- goto failed;
- }
-
- id->status = ID_MAPPED;
-
- return NT_STATUS_OK;
- }
-
- /* not a SID see if it is an UID or a GID */
- if ( ! strncmp("IDMAP/UID/", value, 10)) {
-
- /* a uid */
- id->xid.type = ID_TYPE_UID;
-
- } else if ( ! strncmp("IDMAP/GID/", value, 10)) {
-
- /* a gid */
- id->xid.type = ID_TYPE_GID;
-
- } else {
-
- /* a completely bogus value bail out */
- goto failed;
- }
-
- id->xid.id = strtol(&value[10], &rem, 0);
- if (*rem != '\0') {
- goto failed;
- }
-
- id->status = ID_MAPPED;
-
- return NT_STATUS_OK;
-
-failed:
- DEBUG(1, ("invalid value: %s\n", value));
- id->status = ID_UNKNOWN;
- return NT_STATUS_INTERNAL_DB_CORRUPTION;
-}
-
-/* search the cahce for the SID an return a mapping if found *
- *
- * 4 cases are possible
- *
- * 1 map found
- * in this case id->status = ID_MAPPED and NT_STATUS_OK is returned
- * 2 map not found
- * in this case id->status = ID_UNKNOWN and NT_STATUS_NONE_MAPPED is returned
- * 3 negative cache found
- * in this case id->status = ID_UNMAPPED and NT_STATUS_OK is returned
- * 4 map found but timer expired
- * in this case id->status = ID_EXPIRED and NT_STATUS_SYNCHRONIZATION_REQUIRED
- * is returned. In this case revalidation of the cache is needed.
- */
-
-NTSTATUS idmap_cache_map_sid(struct idmap_cache_ctx *cache, struct id_map *id)
-{
- NTSTATUS ret;
- TDB_DATA databuf;
- time_t t;
- char *sidkey;
- char *endptr;
- struct winbindd_domain *our_domain = find_our_domain();
- time_t now = time(NULL);
-
- /* make sure it is marked as not mapped by default */
- id->status = ID_UNKNOWN;
-
- ret = idmap_cache_build_sidkey(cache, &sidkey, id);
- if (!NT_STATUS_IS_OK(ret)) return ret;
-
- databuf = tdb_fetch_bystring(cache->tdb, sidkey);
-
- if (databuf.dptr == NULL) {
- DEBUG(10, ("Cache entry with key = %s couldn't be found\n", sidkey));
- ret = NT_STATUS_NONE_MAPPED;
- goto done;
- }
-
- t = strtol((const char *)databuf.dptr, &endptr, 10);
-
- if ((endptr == NULL) || (*endptr != '/')) {
- DEBUG(2, ("Invalid gencache data format: %s\n", (const char *)databuf.dptr));
- /* remove the entry */
- tdb_delete_bystring(cache->tdb, sidkey);
- ret = NT_STATUS_NONE_MAPPED;
- goto done;
- }
-
- /* check it is not negative */
- if (strcmp("IDMAP/NEGATIVE", endptr+1) != 0) {
-
- DEBUG(10, ("Returning %s cache entry: key = %s, value = %s, "
- "timeout = %s", t > now ? "valid" :
- "expired", sidkey, endptr+1, ctime(&t)));
-
- /* this call if successful will also mark the entry as mapped */
- ret = idmap_cache_fill_map(id, endptr+1);
- if ( ! NT_STATUS_IS_OK(ret)) {
- /* if not valid form delete the entry */
- tdb_delete_bystring(cache->tdb, sidkey);
- ret = NT_STATUS_NONE_MAPPED;
- goto done;
- }
-
- /* here ret == NT_STATUS_OK and id->status = ID_MAPPED */
-
- if (t <= now) {
- /* If we've been told to be offline - stay in
- that state... */
- if ( IS_DOMAIN_OFFLINE(our_domain) ) {
- DEBUG(10,("idmap_cache_map_sid: idmap is offline\n"));
- goto done;
- }
-
- /* We're expired, set an error code
- for upper layer */
- ret = NT_STATUS_SYNCHRONIZATION_REQUIRED;
- }
-
- goto done;
- }
-
- /* Was a negative cache hit */
-
- /* Ignore the negative cache when offline */
-
- if ( IS_DOMAIN_OFFLINE(our_domain) ) {
- DEBUG(10,("idmap_cache_map_sid: idmap is offline\n"));
- goto done;
- }
-
-
- /* Check for valid or expired cache hits */
- if (t <= now) {
- /* We're expired. Return not mapped */
- ret = NT_STATUS_NONE_MAPPED;
- } else {
- /* this is not mapped as it was a negative cache hit */
- id->status = ID_UNMAPPED;
- ret = NT_STATUS_OK;
- }
-
-done:
- SAFE_FREE(databuf.dptr);
- talloc_free(sidkey);
- return ret;
-}
-
-/* search the cahce for the ID an return a mapping if found *
- *
- * 4 cases are possible
- *
- * 1 map found
- * in this case id->status = ID_MAPPED and NT_STATUS_OK is returned
- * 2 map not found
- * in this case id->status = ID_UNKNOWN and NT_STATUS_NONE_MAPPED is returned
- * 3 negative cache found
- * in this case id->status = ID_UNMAPPED and NT_STATUS_OK is returned
- * 4 map found but timer expired
- * in this case id->status = ID_EXPIRED and NT_STATUS_SYNCHRONIZATION_REQUIRED
- * is returned. In this case revalidation of the cache is needed.
- */
-
-NTSTATUS idmap_cache_map_id(struct idmap_cache_ctx *cache, struct id_map *id)
-{
- NTSTATUS ret;
- TDB_DATA databuf;
- time_t t;
- char *idkey;
- char *endptr;
- struct winbindd_domain *our_domain = find_our_domain();
- time_t now = time(NULL);
-
- /* make sure it is marked as unknown by default */
- id->status = ID_UNKNOWN;
-
- ret = idmap_cache_build_idkey(cache, &idkey, id);
- if (!NT_STATUS_IS_OK(ret)) return ret;
-
- databuf = tdb_fetch_bystring(cache->tdb, idkey);
-
- if (databuf.dptr == NULL) {
- DEBUG(10, ("Cache entry with key = %s couldn't be found\n", idkey));
- ret = NT_STATUS_NONE_MAPPED;
- goto done;
- }
-
- t = strtol((const char *)databuf.dptr, &endptr, 10);
-
- if ((endptr == NULL) || (*endptr != '/')) {
- DEBUG(2, ("Invalid gencache data format: %s\n", (const char *)databuf.dptr));
- /* remove the entry */
- tdb_delete_bystring(cache->tdb, idkey);
- ret = NT_STATUS_NONE_MAPPED;
- goto done;
- }
-
- /* check it is not negative */
- if (strcmp("IDMAP/NEGATIVE", endptr+1) != 0) {
-
- DEBUG(10, ("Returning %s cache entry: key = %s, value = %s, "
- "timeout = %s", t > now ? "valid" :
- "expired", idkey, endptr+1, ctime(&t)));
-
- /* this call if successful will also mark the entry as mapped */
- ret = idmap_cache_fill_map(id, endptr+1);
- if ( ! NT_STATUS_IS_OK(ret)) {
- /* if not valid form delete the entry */
- tdb_delete_bystring(cache->tdb, idkey);
- ret = NT_STATUS_NONE_MAPPED;
- goto done;
- }
-
- /* here ret == NT_STATUS_OK and id->mapped = ID_MAPPED */
-
- if (t <= now) {
- /* If we've been told to be offline - stay in
- that state... */
- if ( IS_DOMAIN_OFFLINE(our_domain) ) {
- DEBUG(10,("idmap_cache_map_sid: idmap is offline\n"));
- goto done;
- }
-
- /* We're expired, set an error code
- for upper layer */
- ret = NT_STATUS_SYNCHRONIZATION_REQUIRED;
- }
-
- goto done;
- }
-
- /* Was a negative cache hit */
-
- /* Ignore the negative cache when offline */
-
- if ( IS_DOMAIN_OFFLINE(our_domain) ) {
- DEBUG(10,("idmap_cache_map_sid: idmap is offline\n"));
- ret = NT_STATUS_NONE_MAPPED;
-
- goto done;
- }
-
- /* Process the negative cache hit */
-
- if (t <= now) {
- /* We're expired. Return not mapped */
- ret = NT_STATUS_NONE_MAPPED;
- } else {
- /* this is not mapped is it was a negative cache hit */
- id->status = ID_UNMAPPED;
- ret = NT_STATUS_OK;
- }
-
-done:
- SAFE_FREE(databuf.dptr);
- talloc_free(idkey);
- return ret;
-}
-
bool idmap_cache_find_sid2uid(const struct dom_sid *sid, uid_t *puid,
bool *expired)
{
{ WINBINDD_SID_TO_GID, winbindd_sid_to_gid, "SID_TO_GID" },
{ WINBINDD_UID_TO_SID, winbindd_uid_to_sid, "UID_TO_SID" },
{ WINBINDD_GID_TO_SID, winbindd_gid_to_sid, "GID_TO_SID" },
-#if 0 /* DISABLED until we fix the interface in Samba 3.0.26 --jerry */
- { WINBINDD_SIDS_TO_XIDS, winbindd_sids_to_unixids, "SIDS_TO_XIDS" },
-#endif /* end DISABLED */
{ WINBINDD_ALLOCATE_UID, winbindd_allocate_uid, "ALLOCATE_UID" },
{ WINBINDD_ALLOCATE_GID, winbindd_allocate_gid, "ALLOCATE_GID" },
{ WINBINDD_SET_MAPPING, winbindd_set_mapping, "SET_MAPPING" },
return NT_STATUS_IS_OK(result) ? WINBINDD_OK : WINBINDD_ERROR;
}
-static void winbindd_sids2xids_recv(TALLOC_CTX *mem_ctx, bool success,
- struct winbindd_response *response,
- void *c, void *private_data)
-{
- void (*cont)(void *priv, bool succ, void *, int) =
- (void (*)(void *, bool, void *, int))c;
-
- if (!success) {
- DEBUG(5, ("Could not trigger sids2xids\n"));
- cont(private_data, False, NULL, 0);
- return;
- }
-
- if (response->result != WINBINDD_OK) {
- DEBUG(5, ("sids2xids returned an error\n"));
- cont(private_data, False, NULL, 0);
- return;
- }
-
- cont(private_data, True, response->extra_data.data, response->length - sizeof(response));
-}
-
-void winbindd_sids2xids_async(TALLOC_CTX *mem_ctx, void *sids, int size,
- void (*cont)(void *private_data, bool success, void *data, int len),
- void *private_data)
-{
- struct winbindd_request request;
- ZERO_STRUCT(request);
- request.cmd = WINBINDD_DUAL_SIDS2XIDS;
- request.extra_data.data = (char *)sids;
- request.extra_len = size;
- do_async(mem_ctx, idmap_child(), &request, winbindd_sids2xids_recv,
- (void *)cont, private_data);
-}
-
-enum winbindd_result winbindd_dual_sids2xids(struct winbindd_domain *domain,
- struct winbindd_cli_state *state)
-{
- DOM_SID *sids;
- struct unixid *xids;
- struct id_map **ids;
- NTSTATUS result;
- int num, i;
-
- DEBUG(3, ("[%5lu]: sids to unix ids\n", (unsigned long)state->pid));
-
- if (state->request.extra_len == 0) {
- DEBUG(0, ("Invalid buffer size!\n"));
- return WINBINDD_ERROR;
- }
-
- sids = (DOM_SID *)state->request.extra_data.data;
- num = state->request.extra_len / sizeof(DOM_SID);
-
- ids = TALLOC_ZERO_ARRAY(state->mem_ctx, struct id_map *, num + 1);
- if ( ! ids) {
- DEBUG(0, ("Out of memory!\n"));
- return WINBINDD_ERROR;
- }
- for (i = 0; i < num; i++) {
- ids[i] = TALLOC_P(ids, struct id_map);
- if ( ! ids[i]) {
- DEBUG(0, ("Out of memory!\n"));
- talloc_free(ids);
- return WINBINDD_ERROR;
- }
- ids[i]->sid = &sids[i];
- }
-
- result = idmap_sids_to_unixids(ids);
-
- if (NT_STATUS_IS_OK(result)) {
-
- xids = SMB_MALLOC_ARRAY(struct unixid, num);
- if ( ! xids) {
- DEBUG(0, ("Out of memory!\n"));
- talloc_free(ids);
- return WINBINDD_ERROR;
- }
-
- for (i = 0; i < num; i++) {
- if (ids[i]->status == ID_MAPPED) {
- xids[i].type = ids[i]->xid.type;
- xids[i].id = ids[i]->xid.id;
- } else {
- xids[i].type = -1;
- }
- }
-
- state->response.length = sizeof(state->response) + (sizeof(struct unixid) * num);
- state->response.extra_data.data = xids;
-
- } else {
- DEBUG (2, ("idmap_sids_to_unixids returned an error: 0x%08x\n", NT_STATUS_V(result)));
- talloc_free(ids);
- return WINBINDD_ERROR;
- }
-
- talloc_free(ids);
- return WINBINDD_OK;
-}
-
static void winbindd_sid2uid_recv(TALLOC_CTX *mem_ctx, bool success,
struct winbindd_response *response,
void *c, void *private_data)
.name = "DUAL_SID2GID",
.struct_cmd = WINBINDD_DUAL_SID2GID,
.struct_fn = winbindd_dual_sid2gid,
-#if 0 /* DISABLED until we fix the interface in Samba 3.0.26 --jerry */
- },{
- .name = "DUAL_SIDS2XIDS",
- .struct_cmd = WINBINDD_DUAL_SIDS2XIDS,
- .struct_fn = winbindd_dual_sids2xids,
-#endif /* end DISABLED */
},{
.name = "DUAL_UID2SID",
.struct_cmd = WINBINDD_DUAL_UID2SID,
winbindd_lookupsid_async( state->mem_ctx, &sid, sid2gid_lookupsid_recv, state );
}
-static void sids2xids_recv(void *private_data, bool success, void *data, int len)
-{
- struct winbindd_cli_state *state =
- talloc_get_type_abort(private_data, struct winbindd_cli_state);
-
- if (!success) {
- DEBUG(5, ("Could not convert sids to xids\n"));
- request_error(state);
- return;
- }
-
- state->response.extra_data.data = data;
- state->response.length = sizeof(state->response) + len;
- request_ok(state);
-}
-
-void winbindd_sids_to_unixids(struct winbindd_cli_state *state)
-{
- DEBUG(3, ("[%5lu]: sids to xids\n", (unsigned long)state->pid));
-
- winbindd_sids2xids_async(state->mem_ctx,
- state->request.extra_data.data,
- state->request.extra_len,
- sids2xids_recv, state);
-}
-
static void set_mapping_recv(void *private_data, bool success)
{
struct winbindd_cli_state *state =
git.samba.org / samba.git / commitdiff