/*
Unix SMB/CIFS implementation.
- Map SIDs to uids/gids and back
+ Map SIDs to unixids and back
Copyright (C) Kai Blin 2008
return NULL;
}
+ idmap_ctx->unix_groups_sid = dom_sid_parse_talloc(mem_ctx, "S-1-22-2");
+ if (idmap_ctx->unix_groups_sid == NULL) {
+ return NULL;
+ }
+
+ idmap_ctx->unix_users_sid = dom_sid_parse_talloc(mem_ctx, "S-1-22-1");
+ if (idmap_ctx->unix_users_sid == NULL) {
+ return NULL;
+ }
+
return idmap_ctx;
}
/**
- * Convert a uid to the corresponding SID
+ * Convert an unixid to the corresponding SID
*
* \param idmap_ctx idmap context to use
* \param mem_ctx talloc context the memory for the struct dom_sid is allocated
* from.
- * \param uid Unix uid to map to a SID
- * \param sid Pointer that will take the struct dom_sid pointer if the mapping
+ * \param unixid pointer to a unixid struct to convert
+ * \param sid pointer that will take the struct dom_sid pointer if the mapping
* succeeds.
* \return NT_STATUS_OK on success, NT_STATUS_NONE_MAPPED if mapping not
* possible or some other NTSTATUS that is more descriptive on failure.
*/
-NTSTATUS idmap_uid_to_sid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
- const uid_t uid, struct dom_sid **sid)
+NTSTATUS idmap_xid_to_sid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
+ const struct unixid *unixid, struct dom_sid **sid)
{
int ret;
NTSTATUS status = NT_STATUS_NONE_MAPPED;
struct ldb_context *ldb = idmap_ctx->ldb_ctx;
- struct ldb_message *msg;
struct ldb_result *res = NULL;
- int trans = -1;
- uid_t low, high;
- char *sid_string, *uid_string;
- struct dom_sid *unix_users_sid, *new_sid;
+ uint32_t low, high;
+ struct dom_sid *unix_sid, *new_sid;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
- NULL, "(&(objectClass=sidMap)(uidNumber=%u))",
- uid);
+ NULL, "(&(objectClass=sidMap)(xidNumber=%u))",
+ unixid->id);
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
return NT_STATUS_OK;
}
- DEBUG(6, ("uid not found in idmap db, trying to allocate SID.\n"));
-
- trans = ldb_transaction_start(ldb);
- if (trans != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
+ DEBUG(6, ("xid not found in idmap db, trying to allocate SID.\n"));
/* Now redo the search to make sure noone added a mapping for that SID
* while we weren't looking.*/
ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
- NULL, "(&(objectClass=sidMap)(uidNumber=%u))",
- uid);
+ NULL, "(&(objectClass=sidMap)(xidNumber=%u))",
+ unixid->id);
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
- if (uid >= low && uid <= high) {
- /* An existing user would have been mapped before */
- status = NT_STATUS_NO_SUCH_USER;
+ if (unixid->id >= low && unixid->id <= high) {
+ /* An existing xid would have been mapped before */
+ status = NT_STATUS_NONE_MAPPED;
goto failed;
}
/* For local users, we just create a rid = uid +1, so root doesn't end
* up with a 0 rid */
- unix_users_sid = dom_sid_parse_talloc(tmp_ctx, "S-1-22-1");
- if (unix_users_sid == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- new_sid = dom_sid_add_rid(mem_ctx, unix_users_sid, uid + 1);
- if (new_sid == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- sid_string = dom_sid_string(tmp_ctx, new_sid);
- if (sid_string == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- uid_string = talloc_asprintf(tmp_ctx, "%u", uid);
- if (uid_string == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- msg = ldb_msg_new(tmp_ctx);
- if (msg == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- msg->dn = ldb_dn_new_fmt(tmp_ctx, ldb, "CN=%s", sid_string);
- if (msg->dn == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- ret = ldb_msg_add_string(msg, "uidNumber", uid_string);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- ret = idmap_msg_add_dom_sid(idmap_ctx, tmp_ctx, msg, "objectSid",
- new_sid);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- ret = ldb_msg_add_string(msg, "objectClass", "sidMap");
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- ret = ldb_msg_add_string(msg, "cn", sid_string);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- ret = ldb_add(ldb, msg);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- trans = ldb_transaction_commit(ldb);
- if (trans != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- *sid = new_sid;
- talloc_free(tmp_ctx);
- return NT_STATUS_OK;
-
-failed:
- if (trans == LDB_SUCCESS) ldb_transaction_cancel(ldb);
- talloc_free(tmp_ctx);
- return status;
-}
-
-/**
- * Map a Unix gid to the corresponding SID
- *
- * \param idmap_ctx idmap context to use
- * \param mem_ctx talloc context the memory for the struct dom_sid is allocated
- * from.
- * \param gid Unix gid to map to a SID
- * \param sid Pointer that will take the struct dom_sid pointer if mapping
- * succeeds.
- * \return NT_STATUS_OK on success, NT_STATUS_NONE_MAPPED if mapping not
- * possible or some other NTSTATUS that is more descriptive on failure.
- */
-NTSTATUS idmap_gid_to_sid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
- const gid_t gid, struct dom_sid **sid)
-{
- int ret;
- NTSTATUS status = NT_STATUS_NONE_MAPPED;
- struct ldb_context *ldb = idmap_ctx->ldb_ctx;
- struct ldb_message *msg;
- struct ldb_result *res = NULL;
- int trans = -1;
- gid_t low, high;
- char *sid_string, *gid_string;
- struct dom_sid *unix_groups_sid, *new_sid;
- TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
-
- ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
- NULL, "(&(objectClass=sidMap)(gidNumber=%u))", gid);
- if (ret != LDB_SUCCESS) {
- DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- if (res->count == 1) {
- *sid = idmap_msg_get_dom_sid(mem_ctx, res->msgs[0],
- "objectSid");
- if (*sid == NULL) {
- DEBUG(1, ("Failed to get sid from db: %u\n", ret));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
- /* No change, so cancel the transaction */
- ldb_transaction_cancel(ldb);
- talloc_free(tmp_ctx);
- return NT_STATUS_OK;
- }
-
- DEBUG(6, ("gid not found in idmap db, trying to allocate SID.\n"));
-
- trans = ldb_transaction_start(ldb);
- if (trans != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- /* Now redo the search to make sure noone added a mapping for that SID
- * while we weren't looking.*/
- ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
- NULL, "(&(objectClass=sidMap)(gidNumber=%u))",
- gid);
- if (ret != LDB_SUCCESS) {
- DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- if (res->count > 0) {
- DEBUG(1, ("sidMap modified while trying to add a mapping.\n"));
- status = NT_STATUS_RETRY;
- goto failed;
- }
-
- ret = idmap_get_bounds(idmap_ctx, &low, &high);
- if (ret != LDB_SUCCESS) {
- DEBUG(1, ("Failed to get id bounds from db: %u\n", ret));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- if (gid >= low && gid <= high) {
- /* An existing group would have been mapped before */
- status = NT_STATUS_NO_SUCH_USER;
- goto failed;
+ if (unixid->type == ID_TYPE_UID) {
+ unix_sid = dom_sid_parse_talloc(tmp_ctx, "S-1-22-1");
+ } else {
+ unix_sid = dom_sid_parse_talloc(tmp_ctx, "S-1-22-2");
}
-
- /* For local groups, we just create a rid = gid +1, so root doesn't end
- * up with a 0 rid */
- unix_groups_sid = dom_sid_parse_talloc(tmp_ctx, "S-1-22-2");
- if (unix_groups_sid == NULL) {
+ if (unix_sid == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
- new_sid = dom_sid_add_rid(mem_ctx, unix_groups_sid, gid + 1);
+ new_sid = dom_sid_add_rid(mem_ctx, unix_sid, unixid->id + 1);
if (new_sid == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
- sid_string = dom_sid_string(tmp_ctx, new_sid);
- if (sid_string == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- gid_string = talloc_asprintf(tmp_ctx, "%u", gid);
- if (gid_string == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- msg = ldb_msg_new(tmp_ctx);
- if (msg == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- msg->dn = ldb_dn_new_fmt(tmp_ctx, ldb, "CN=%s", sid_string);
- if (msg->dn == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- ret = ldb_msg_add_string(msg, "gidNumber", gid_string);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- ret = idmap_msg_add_dom_sid(idmap_ctx, tmp_ctx, msg, "objectSid",
- new_sid);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- ret = ldb_msg_add_string(msg, "objectClass", "sidMap");
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- ret = ldb_msg_add_string(msg, "cn", sid_string);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- ret = ldb_add(ldb, msg);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- trans = ldb_transaction_commit(ldb);
- if (trans != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
*sid = new_sid;
talloc_free(tmp_ctx);
return NT_STATUS_OK;
failed:
- if (trans == LDB_SUCCESS) ldb_transaction_cancel(ldb);
talloc_free(tmp_ctx);
return status;
}
+
/**
- * Map a SID to a Unix uid.
+ * Map a SID to an unixid struct.
*
* If no mapping exists, a new mapping will be created.
*
* \todo Check if SIDs can be resolved if lp_idmap_trusted_only() == true
+ * \todo Fix backwards compatibility for Samba3
*
* \param idmap_ctx idmap context to use
* \param mem_ctx talloc context to use
- * \param sid SID to map to a Unix uid
- * \param uid pointer to receive the mapped uid
+ * \param sid SID to map to an unixid struct
+ * \param unixid pointer to a unixid struct pointer
* \return NT_STATUS_OK on success, NT_STATUS_INVALID_SID if the sid is not from
* a trusted domain and idmap trusted only = true, NT_STATUS_NONE_MAPPED if the
* mapping failed.
*/
-NTSTATUS idmap_sid_to_uid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
- const struct dom_sid *sid, uid_t *uid)
+NTSTATUS idmap_sid_to_xid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
+ const struct dom_sid *sid, struct unixid **unixid)
{
int ret;
NTSTATUS status = NT_STATUS_NONE_MAPPED;
struct ldb_message *hwm_msg, *map_msg;
struct ldb_result *res = NULL;
int trans;
- uid_t low, high, hwm, new_uid;
- char *sid_string, *uid_string, *hwm_string;
+ uint32_t low, high, hwm, new_xid;
+ char *sid_string, *unixid_string, *hwm_string;
bool hwm_entry_exists;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
}
if (res->count == 1) {
- new_uid = ldb_msg_find_attr_as_uint(res->msgs[0], "uidNumber",
+ new_xid = ldb_msg_find_attr_as_uint(res->msgs[0], "xidNumber",
-1);
- if (new_uid == (uid_t) -1) {
- DEBUG(1, ("Invalid uid mapping.\n"));
+ if (new_xid == (uint32_t) -1) {
+ DEBUG(1, ("Invalid xid mapping.\n"));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
- *uid = new_uid;
+
+ *unixid = talloc(mem_ctx, struct unixid);
+ if (*unixid == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto failed;
+ }
+
+ (*unixid)->id = new_xid;
+ (*unixid)->type = ID_TYPE_BOTH;
+
talloc_free(tmp_ctx);
return NT_STATUS_OK;
}
DEBUG(6, ("No existing mapping found, attempting to create one.\n"));
+ if (dom_sid_in_domain(idmap_ctx->unix_users_sid, sid)) {
+ uint32_t rid;
+ DEBUG(6, ("This is a local unix uid, just calculate that.\n"));
+ status = dom_sid_split_rid(tmp_ctx, sid, NULL, &rid);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
+
+ *unixid = talloc(mem_ctx, struct unixid);
+ if (*unixid == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto failed;
+ }
+ (*unixid)->id = rid - 1;
+ (*unixid)->type = ID_TYPE_UID;
+
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
+ if (dom_sid_in_domain(idmap_ctx->unix_groups_sid, sid)) {
+ uint32_t rid;
+ DEBUG(6, ("This is a local unix gid, just calculate that.\n"));
+ status = dom_sid_split_rid(tmp_ctx, sid, NULL, &rid);
+ if (!NT_STATUS_IS_OK(status)) goto failed;
+
+ *unixid = talloc(mem_ctx, struct unixid);
+ if (*unixid == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto failed;
+ }
+ (*unixid)->id = rid - 1;
+ (*unixid)->type = ID_TYPE_GID;
+
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
trans = ldb_transaction_start(ldb);
if (trans != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
- hwm = ldb_msg_find_attr_as_uint(res->msgs[0], "uidNumber", -1);
- if (hwm == (uid_t)-1) {
+ hwm = ldb_msg_find_attr_as_uint(res->msgs[0], "xidNumber", -1);
+ if (hwm == (uint32_t)-1) {
hwm = low;
hwm_entry_exists = false;
} else {
}
if (hwm > high) {
- DEBUG(1, ("Out of uids to allocate.\n"));
+ DEBUG(1, ("Out of xids to allocate.\n"));
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
hwm_msg->dn = dn;
- new_uid = hwm;
+ new_xid = hwm;
hwm++;
hwm_string = talloc_asprintf(tmp_ctx, "%u", hwm);
goto failed;
}
- uid_string = talloc_asprintf(tmp_ctx, "%u", new_uid);
- if (uid_string == NULL) {
+ unixid_string = talloc_asprintf(tmp_ctx, "%u", new_xid);
+ if (unixid_string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
els[0].num_values = 1;
els[0].values = &vals[0];
els[0].flags = LDB_FLAG_MOD_DELETE;
- els[0].name = talloc_strdup(tmp_ctx, "uidNumber");
+ els[0].name = talloc_strdup(tmp_ctx, "xidNumber");
if (els[0].name == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
els[1].flags = LDB_FLAG_MOD_ADD;
els[1].name = els[0].name;
- vals[0].data = (uint8_t *)uid_string;
- vals[0].length = strlen(uid_string);
+ vals[0].data = (uint8_t *)unixid_string;
+ vals[0].length = strlen(unixid_string);
vals[1].data = (uint8_t *)hwm_string;
vals[1].length = strlen(hwm_string);
} else {
- ret = ldb_msg_add_empty(hwm_msg, "uidNumber", LDB_FLAG_MOD_ADD,
+ ret = ldb_msg_add_empty(hwm_msg, "xidNumber", LDB_FLAG_MOD_ADD,
NULL);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
- ret = ldb_msg_add_string(hwm_msg, "uidNumber", hwm_string);
+ ret = ldb_msg_add_string(hwm_msg, "xidNumber", hwm_string);
if (ret != LDB_SUCCESS)
{
status = NT_STATUS_NONE_MAPPED;
ret = ldb_modify(ldb, hwm_msg);
if (ret != LDB_SUCCESS) {
- DEBUG(1, ("Updating the uid high water mark failed: %s\n",
+ DEBUG(1, ("Updating the xid high water mark failed: %s\n",
ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
goto failed;
goto failed;
}
- ret = ldb_msg_add_string(map_msg, "uidNumber", uid_string);
+ ret = ldb_msg_add_string(map_msg, "xidNumber", unixid_string);
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
goto failed;
}
- *uid = new_uid;
+ *unixid = talloc(mem_ctx, struct unixid);
+ if (*unixid == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto failed;
+ }
+
+ (*unixid)->id = new_xid;
+ (*unixid)->type = ID_TYPE_BOTH;
talloc_free(tmp_ctx);
return NT_STATUS_OK;
}
/**
- * Map a SID to a Unix gid.
- *
- * If no mapping exist, a new mapping will be created.
- *
- * \todo Check if SID resolve when lp_idmap_trusted_only() == true
+ * Convert an array of unixids to the corresponding array of SIDs
*
* \param idmap_ctx idmap context to use
- * \param mem_ctx talloc context to use
- * \param sid SID to map to a Unix gid
- * \param gid pointer to receive the mapped gid
- * \return NT_STATUS_OK on success, NT_STATUS_INVALID_SID if the sid is not from
- * a trusted domain and idmap trusted only = true, NT_STATUS_NONE_MAPPED if the
- * mapping failed.
+ * \param mem_ctx talloc context the memory for the dom_sids is allocated
+ * from.
+ * \param count length of id_mapping array.
+ * \param id array of id_mappings.
+ * \return NT_STATUS_OK on success, NT_STATUS_NONE_MAPPED if mapping is not
+ * possible at all, NT_STATUS_SOME_UNMAPPED if some mappings worked and some
+ * did not.
*/
-NTSTATUS idmap_sid_to_gid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
- const struct dom_sid *sid, gid_t *gid)
-{
- int ret;
- NTSTATUS status = NT_STATUS_NONE_MAPPED;
- struct ldb_context *ldb = idmap_ctx->ldb_ctx;
- struct ldb_dn *dn;
- struct ldb_message *hwm_msg, *map_msg;
- struct ldb_result *res = NULL;
- int trans = -1;
- gid_t low, high, hwm, new_gid;
- char *sid_string, *gid_string, *hwm_string;
- bool hwm_entry_exists;
- TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
- ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
- NULL, "(&(objectClass=sidMap)(objectSid=%s))",
- ldap_encode_ndr_dom_sid(tmp_ctx, sid));
- if (ret != LDB_SUCCESS) {
- DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- if (res->count == 1) {
- new_gid = ldb_msg_find_attr_as_uint(res->msgs[0], "gidNumber",
- -1);
- if (new_gid == (gid_t) -1) {
- DEBUG(1, ("Invalid gid mapping.\n"));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
+NTSTATUS idmap_xids_to_sids(struct idmap_context *idmap_ctx,
+ TALLOC_CTX *mem_ctx, int count,
+ struct id_mapping *id)
+{
+ int i;
+ int error_count = 0;
+
+ for (i = 0; i < count; ++i) {
+ id[i].status = idmap_xid_to_sid(idmap_ctx, mem_ctx,
+ id[i].unixid, &id[i].sid);
+ if (NT_STATUS_EQUAL(id[i].status, NT_STATUS_RETRY)) {
+ id[i].status = idmap_xid_to_sid(idmap_ctx, mem_ctx,
+ id[i].unixid,
+ &id[i].sid);
+ }
+ if (!NT_STATUS_IS_OK(id[i].status)) {
+ DEBUG(1, ("idmapping failed for id[%d]\n", i));
+ error_count++;
}
- *gid = new_gid;
- talloc_free(tmp_ctx);
- return NT_STATUS_OK;
- }
-
- DEBUG(6, ("No existing mapping found, attempting to create one.\n"));
-
- trans = ldb_transaction_start(ldb);
- if (trans != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- /* Redo the search to make sure noone changed the mapping while we
- * weren't looking */
- ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
- NULL, "(&(objectClass=sidMap)(objectSid=%s))",
- ldap_encode_ndr_dom_sid(tmp_ctx, sid));
- if (ret != LDB_SUCCESS) {
- DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- if (res->count > 0) {
- DEBUG(1, ("Database changed while trying to add a sidmap.\n"));
- status = NT_STATUS_RETRY;
- goto failed;
- }
-
- /*FIXME: if lp_idmap_trusted_only() == true, check if SID can be
- * resolved here. */
-
- ret = idmap_get_bounds(idmap_ctx, &low, &high);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- dn = ldb_dn_new(tmp_ctx, ldb, "CN=CONFIG");
- if (dn == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- ret = ldb_search(ldb, dn, LDB_SCOPE_BASE, NULL, NULL, &res);
- if (ret != LDB_SUCCESS) {
- DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- talloc_steal(tmp_ctx, res);
-
- if (res->count != 1) {
- DEBUG(1, ("No CN=CONFIG record, idmap database is broken.\n"));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
}
- hwm = ldb_msg_find_attr_as_uint(res->msgs[0], "gidNumber", -1);
- if (hwm == (gid_t)-1) {
- hwm = low;
- hwm_entry_exists = false;
+ if (error_count == count) {
+ /* Mapping did not work at all. */
+ return NT_STATUS_NONE_MAPPED;
+ } else if (error_count > 0) {
+ /* Some mappings worked, some did not. */
+ return STATUS_SOME_UNMAPPED;
} else {
- hwm_entry_exists = true;
- }
-
- if (hwm > high) {
- DEBUG(1, ("Out of gids to allocate.\n"));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- hwm_msg = ldb_msg_new(tmp_ctx);
- if (hwm_msg == NULL) {
- DEBUG(1, ("Out of memory when creating ldb_message\n"));
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- hwm_msg->dn = dn;
-
- new_gid = hwm;
- hwm++;
-
- hwm_string = talloc_asprintf(tmp_ctx, "%u", hwm);
- if (hwm_string == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- sid_string = dom_sid_string(tmp_ctx, sid);
- if (sid_string == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- gid_string = talloc_asprintf(tmp_ctx, "%u", new_gid);
- if (gid_string == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
+ return NT_STATUS_OK;
}
+}
- if (hwm_entry_exists) {
- struct ldb_message_element *els;
- struct ldb_val *vals;
-
- /* We're modifying the entry, not just adding a new one. */
- els = talloc_array(tmp_ctx, struct ldb_message_element, 2);
- if (els == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- vals = talloc_array(tmp_ctx, struct ldb_val, 2);
- if (els == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- hwm_msg->num_elements = 2;
- hwm_msg->elements = els;
-
- els[0].num_values = 1;
- els[0].values = &vals[0];
- els[0].flags = LDB_FLAG_MOD_DELETE;
- els[0].name = talloc_strdup(tmp_ctx, "gidNumber");
- if (els[0].name == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- els[1].num_values = 1;
- els[1].values = &vals[1];
- els[1].flags = LDB_FLAG_MOD_ADD;
- els[1].name = els[0].name;
+/**
+ * Convert an array of SIDs to the corresponding array of unixids
+ *
+ * \param idmap_ctx idmap context to use
+ * \param mem_ctx talloc context the memory for the unixids is allocated
+ * from.
+ * \param count length of id_mapping array.
+ * \param id array of id_mappings.
+ * \return NT_STATUS_OK on success, NT_STATUS_NONE_MAPPED if mapping is not
+ * possible at all, NT_STATUS_SOME_UNMAPPED if some mappings worked and some
+ * did not.
+ */
- vals[0].data = (uint8_t *)gid_string;
- vals[0].length = strlen(gid_string);
- vals[1].data = (uint8_t *)hwm_string;
- vals[1].length = strlen(hwm_string);
- } else {
- ret = ldb_msg_add_empty(hwm_msg, "gidNumber", LDB_FLAG_MOD_ADD,
- NULL);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
+NTSTATUS idmap_sids_to_xids(struct idmap_context *idmap_ctx,
+ TALLOC_CTX *mem_ctx, int count,
+ struct id_mapping *id)
+{
+ int i;
+ int error_count = 0;
+
+ for (i = 0; i < count; ++i) {
+ id[i].status = idmap_sid_to_xid(idmap_ctx, mem_ctx,
+ id[i].sid, &id[i].unixid);
+ if (NT_STATUS_EQUAL(id[i].status, NT_STATUS_RETRY)) {
+ id[i].status = idmap_sid_to_xid(idmap_ctx, mem_ctx,
+ id[i].sid,
+ &id[i].unixid);
}
-
- ret = ldb_msg_add_string(hwm_msg, "gidNumber", hwm_string);
- if (ret != LDB_SUCCESS)
- {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
+ if (!NT_STATUS_IS_OK(id[i].status)) {
+ DEBUG(1, ("idmapping failed for id[%d]\n", i));
+ error_count++;
}
}
- ret = ldb_modify(ldb, hwm_msg);
- if (ret != LDB_SUCCESS) {
- DEBUG(1, ("Updating the gid high water mark failed: %s\n",
- ldb_errstring(ldb)));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- map_msg = ldb_msg_new(tmp_ctx);
- if (map_msg == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- map_msg->dn = ldb_dn_new_fmt(tmp_ctx, ldb, "CN=%s", sid_string);
- if (map_msg->dn == NULL) {
- status = NT_STATUS_NO_MEMORY;
- goto failed;
- }
-
- ret = ldb_msg_add_string(map_msg, "gidNumber", gid_string);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- ret = idmap_msg_add_dom_sid(idmap_ctx, tmp_ctx, map_msg, "objectSid",
- sid);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- ret = ldb_msg_add_string(map_msg, "objectClass", "sidMap");
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- ret = ldb_msg_add_string(map_msg, "cn", sid_string);
- if (ret != LDB_SUCCESS) {
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- ret = ldb_add(ldb, map_msg);
- if (ret != LDB_SUCCESS) {
- DEBUG(1, ("Adding a sidmap failed: %s\n", ldb_errstring(ldb)));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
- }
-
- trans = ldb_transaction_commit(ldb);
- if (trans != LDB_SUCCESS) {
- DEBUG(1, ("Transaction failed: %s\n", ldb_errstring(ldb)));
- status = NT_STATUS_NONE_MAPPED;
- goto failed;
+ if (error_count == count) {
+ /* Mapping did not work at all. */
+ return NT_STATUS_NONE_MAPPED;
+ } else if (error_count > 0) {
+ /* Some mappings worked, some did not. */
+ return STATUS_SOME_UNMAPPED;
+ } else {
+ return NT_STATUS_OK;
}
-
- *gid = new_gid;
- talloc_free(tmp_ctx);
- return NT_STATUS_OK;
-
-failed:
- if (trans == LDB_SUCCESS) ldb_transaction_cancel(ldb);
- talloc_free(tmp_ctx);
- return status;
}
git.samba.org / jelmer / samba4-debian.git / blobdiff