/*
Unix SMB/CIFS implementation.
- Map SIDs to uids/gids and back
+ Map SIDs to unixids and back
Copyright (C) Kai Blin 2008
+ Copyright (C) Andrew Bartlett 2012
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
#include "includes.h"
#include "auth/auth.h"
-#include "librpc/gen_ndr/lsa.h"
-#include "librpc/gen_ndr/samr.h"
#include "librpc/gen_ndr/ndr_security.h"
-#include "lib/ldb/include/ldb.h"
-#include "lib/ldb/include/ldb_errors.h"
-#include "lib/ldb_wrap.h"
+#include <ldb.h>
+#include "ldb_wrap.h"
#include "param/param.h"
#include "winbind/idmap.h"
-#include "libcli/security/proto.h"
+#include "libcli/security/security.h"
#include "libcli/ldap/ldap_ndr.h"
+#include "dsdb/samdb/samdb.h"
+#include "../libds/common/flags.h"
/**
* Get uid/gid bounds from idmap database
dn = ldb_dn_new(tmp_ctx, ldb, "CN=CONFIG");
if (dn == NULL) goto failed;
- ret = ldb_search(ldb, dn, LDB_SCOPE_BASE, NULL, NULL, &res);
+ ret = ldb_search(ldb, tmp_ctx, &res, dn, LDB_SCOPE_BASE, NULL, NULL);
if (ret != LDB_SUCCESS) goto failed;
- talloc_steal(tmp_ctx, res);
-
if (res->count != 1) {
ret = -1;
goto failed;
struct ldb_val val;
enum ndr_err_code ndr_err;
- ndr_err = ndr_push_struct_blob(&val, mem_ctx,
- lp_iconv_convenience(idmap_ctx->lp_ctx),
- sid,
+ ndr_err = ndr_push_struct_blob(&val, mem_ctx, sid,
(ndr_push_flags_fn_t)ndr_push_dom_sid);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
return NULL;
}
- ndr_err = ndr_pull_struct_blob(val, sid, NULL, sid,
+ ndr_err = ndr_pull_struct_blob(val, sid, sid,
(ndr_pull_flags_fn_t)ndr_pull_dom_sid);
if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
talloc_free(sid);
* \return allocated idmap_context on success, NULL on error
*/
struct idmap_context *idmap_init(TALLOC_CTX *mem_ctx,
- struct loadparm_context *lp_ctx)
+ struct tevent_context *ev_ctx,
+ struct loadparm_context *lp_ctx)
{
struct idmap_context *idmap_ctx;
idmap_ctx->lp_ctx = lp_ctx;
- idmap_ctx->ldb_ctx = ldb_wrap_connect(mem_ctx, lp_ctx,
- lp_idmap_url(lp_ctx),
- system_session(mem_ctx, lp_ctx),
- NULL, 0, NULL);
+ idmap_ctx->ldb_ctx = ldb_wrap_connect(idmap_ctx, ev_ctx, lp_ctx,
+ "idmap.ldb",
+ system_session(lp_ctx),
+ NULL, 0);
if (idmap_ctx->ldb_ctx == NULL) {
- return NULL;
+ goto fail;
+ }
+
+ idmap_ctx->unix_groups_sid = dom_sid_parse_talloc(
+ idmap_ctx, "S-1-22-2");
+ if (idmap_ctx->unix_groups_sid == NULL) {
+ goto fail;
+ }
+
+ idmap_ctx->unix_users_sid = dom_sid_parse_talloc(
+ idmap_ctx, "S-1-22-1");
+ if (idmap_ctx->unix_users_sid == NULL) {
+ goto fail;
+ }
+
+ idmap_ctx->samdb = samdb_connect(idmap_ctx, ev_ctx, lp_ctx, system_session(lp_ctx), 0);
+ if (idmap_ctx->samdb == NULL) {
+ DEBUG(0, ("Failed to load sam.ldb in idmap_init\n"));
+ goto fail;
}
return idmap_ctx;
+fail:
+ TALLOC_FREE(idmap_ctx);
+ return NULL;
}
/**
- * 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)
+static NTSTATUS idmap_xid_to_sid(struct idmap_context *idmap_ctx,
+ TALLOC_CTX *mem_ctx,
+ 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;
+ struct ldb_message *msg;
+ const struct dom_sid *unix_sid;
+ struct dom_sid *new_sid;
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
+ const char *id_type;
+
+ const char *sam_attrs[] = {"objectSid", NULL};
+
+ /*
+ * First check against our local DB, to see if this user has a
+ * mapping there. This means that the Samba4 AD DC behaves
+ * much like a winbindd member server running idmap_ad
+ */
+
+ switch (unixid->type) {
+ case ID_TYPE_UID:
+ if (lpcfg_parm_bool(idmap_ctx->lp_ctx, NULL, "idmap_ldb", "use rfc2307", false)) {
+ ret = dsdb_search_one(idmap_ctx->samdb, tmp_ctx, &msg,
+ ldb_get_default_basedn(idmap_ctx->samdb),
+ LDB_SCOPE_SUBTREE,
+ sam_attrs, 0,
+ "(&(|(sAMaccountType=%u)(sAMaccountType=%u)(sAMaccountType=%u))"
+ "(uidNumber=%u)(objectSid=*))",
+ ATYPE_ACCOUNT, ATYPE_WORKSTATION_TRUST, ATYPE_INTERDOMAIN_TRUST, unixid->id);
+ } else {
+ /* If we are not to use the rfc2307 attributes, we just emulate a non-match */
+ ret = LDB_ERR_NO_SUCH_OBJECT;
+ }
+
+ if (ret == LDB_ERR_CONSTRAINT_VIOLATION) {
+ DEBUG(1, ("Search for uidNumber=%lu gave duplicate results, failing to map to a SID!\n",
+ (unsigned long)unixid->id));
+ status = NT_STATUS_NONE_MAPPED;
+ goto failed;
+ } else if (ret == LDB_SUCCESS) {
+ *sid = samdb_result_dom_sid(mem_ctx, msg, "objectSid");
+ if (*sid == NULL) {
+ DEBUG(1, ("Search for uidNumber=%lu did not return an objectSid!\n",
+ (unsigned long)unixid->id));
+ status = NT_STATUS_NONE_MAPPED;
+ goto failed;
+ }
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ } else if (ret != LDB_ERR_NO_SUCH_OBJECT) {
+ DEBUG(1, ("Search for uidNumber=%lu gave '%s', failing to map to a SID!\n",
+ (unsigned long)unixid->id, ldb_errstring(idmap_ctx->samdb)));
+ status = NT_STATUS_NONE_MAPPED;
+ goto failed;
+ }
+
+ id_type = "ID_TYPE_UID";
+ break;
+ case ID_TYPE_GID:
+ if (lpcfg_parm_bool(idmap_ctx->lp_ctx, NULL, "idmap_ldb", "use rfc2307", false)) {
+ ret = dsdb_search_one(idmap_ctx->samdb, tmp_ctx, &msg,
+ ldb_get_default_basedn(idmap_ctx->samdb),
+ LDB_SCOPE_SUBTREE,
+ sam_attrs, 0,
+ "(&(|(sAMaccountType=%u)(sAMaccountType=%u))(gidNumber=%u))",
+ ATYPE_SECURITY_GLOBAL_GROUP, ATYPE_SECURITY_LOCAL_GROUP,
+ unixid->id);
+ } else {
+ /* If we are not to use the rfc2307 attributes, we just emulate a non-match */
+ ret = LDB_ERR_NO_SUCH_OBJECT;
+ }
+ if (ret == LDB_ERR_CONSTRAINT_VIOLATION) {
+ DEBUG(1, ("Search for gidNumber=%lu gave duplicate results, failing to map to a SID!\n",
+ (unsigned long)unixid->id));
+ status = NT_STATUS_NONE_MAPPED;
+ goto failed;
+ } else if (ret == LDB_SUCCESS) {
+ *sid = samdb_result_dom_sid(mem_ctx, msg, "objectSid");
+ if (*sid == NULL) {
+ DEBUG(1, ("Search for gidNumber=%lu did not return an objectSid!\n",
+ (unsigned long)unixid->id));
+ status = NT_STATUS_NONE_MAPPED;
+ goto failed;
+ }
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ } else if (ret != LDB_ERR_NO_SUCH_OBJECT) {
+ DEBUG(1, ("Search for gidNumber=%lu gave '%s', failing to map to a SID!\n",
+ (unsigned long)unixid->id, ldb_errstring(idmap_ctx->samdb)));
+ status = NT_STATUS_NONE_MAPPED;
+ goto failed;
+ }
+
+ id_type = "ID_TYPE_GID";
+ break;
+ default:
+ DEBUG(1, ("unixid->type must be type gid or uid (got %u) for lookup with id %lu\n",
+ (unsigned)unixid->type, (unsigned long)unixid->id));
+ status = NT_STATUS_NONE_MAPPED;
+ goto failed;
+ }
- ret = ldb_search_exp_fmt(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
- NULL, "(&(objectClass=sidMap)(uidNumber=%u))",
- uid);
+ ret = ldb_search(ldb, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
+ NULL, "(&(|(type=ID_TYPE_BOTH)(type=%s))"
+ "(xidNumber=%u))", id_type, unixid->id);
if (ret != LDB_SUCCESS) {
DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
status = NT_STATUS_NONE_MAPPED;
}
if (res->count == 1) {
+ const char *type = ldb_msg_find_attr_as_string(res->msgs[0],
+ "type", NULL);
+
*sid = idmap_msg_get_dom_sid(mem_ctx, res->msgs[0],
"objectSid");
if (*sid == NULL) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
+
+ if (type == NULL) {
+ DEBUG(1, ("Invalid type for mapping entry.\n"));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NONE_MAPPED;
+ }
+
+ if (strcmp(type, "ID_TYPE_BOTH") == 0) {
+ unixid->type = ID_TYPE_BOTH;
+ } else if (strcmp(type, "ID_TYPE_UID") == 0) {
+ unixid->type = ID_TYPE_UID;
+ } else {
+ unixid->type = ID_TYPE_GID;
+ }
+
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
+ DEBUG(6, ("xid not found in idmap db, create S-1-22- SID.\n"));
+
+ /* For local users/groups , we just create a rid = uid/gid */
+ if (unixid->type == ID_TYPE_UID) {
+ unix_sid = &global_sid_Unix_Users;
+ } else {
+ unix_sid = &global_sid_Unix_Groups;
+ }
+
+ new_sid = dom_sid_add_rid(mem_ctx, unix_sid, unixid->id);
+ if (new_sid == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto failed;
+ }
+
+ *sid = new_sid;
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+
+failed:
+ talloc_free(tmp_ctx);
+ return status;
+}
+
+
+/**
+ * Map a SID to an unixid struct.
+ *
+ * If no mapping exists, a new mapping will be created.
+ *
+ * \param idmap_ctx idmap context to use
+ * \param mem_ctx talloc context to use
+ * \param sid SID to map to an unixid struct
+ * \param unixid pointer to a unixid struct
+ * \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.
+ */
+static 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_context *ldb = idmap_ctx->ldb_ctx;
+ struct ldb_dn *dn;
+ struct ldb_message *hwm_msg, *map_msg, *sam_msg;
+ struct ldb_result *res = NULL;
+ int trans = -1;
+ 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);
+ const char *sam_attrs[] = {"uidNumber", "gidNumber", "samAccountType", NULL};
+
+ 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)) {
+ talloc_free(tmp_ctx);
+ return status;
+ }
+
+ unixid->id = rid;
+ 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)) {
+ talloc_free(tmp_ctx);
+ return status;
+ }
+
+ unixid->id = rid;
+ unixid->type = ID_TYPE_GID;
+
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
+ /*
+ * First check against our local DB, to see if this user has a
+ * mapping there. This means that the Samba4 AD DC behaves
+ * much like a winbindd member server running idmap_ad
+ */
+
+ if (lpcfg_parm_bool(idmap_ctx->lp_ctx, NULL, "idmap_ldb", "use rfc2307", false)) {
+ ret = dsdb_search_one(idmap_ctx->samdb, tmp_ctx, &sam_msg,
+ ldb_get_default_basedn(idmap_ctx->samdb),
+ LDB_SCOPE_SUBTREE, sam_attrs, 0,
+ "(&(objectSid=%s)"
+ "(|(sAMaccountType=%u)(sAMaccountType=%u)(sAMaccountType=%u)"
+ "(sAMaccountType=%u)(sAMaccountType=%u))"
+ "(|(uidNumber=*)(gidNumber=*)))",
+ dom_sid_string(tmp_ctx, sid),
+ ATYPE_ACCOUNT, ATYPE_WORKSTATION_TRUST, ATYPE_INTERDOMAIN_TRUST,
+ ATYPE_SECURITY_GLOBAL_GROUP, ATYPE_SECURITY_LOCAL_GROUP);
+ } else {
+ /* If we are not to use the rfc2307 attributes, we just emulate a non-match */
+ ret = LDB_ERR_NO_SUCH_OBJECT;
+ }
+
+ if (ret == LDB_ERR_CONSTRAINT_VIOLATION) {
+ DEBUG(1, ("Search for objectSid=%s gave duplicate results, failing to map to a unix ID!\n",
+ dom_sid_string(tmp_ctx, sid)));
+ status = NT_STATUS_NONE_MAPPED;
+ goto failed;
+ } else if (ret == LDB_SUCCESS) {
+ uint32_t account_type = ldb_msg_find_attr_as_uint(sam_msg, "sAMaccountType", 0);
+ if ((account_type == ATYPE_ACCOUNT) ||
+ (account_type == ATYPE_WORKSTATION_TRUST ) ||
+ (account_type == ATYPE_INTERDOMAIN_TRUST ))
+ {
+ const struct ldb_val *v = ldb_msg_find_ldb_val(sam_msg, "uidNumber");
+ if (v) {
+ unixid->type = ID_TYPE_UID;
+ unixid->id = ldb_msg_find_attr_as_uint(sam_msg, "uidNumber", -1);
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+
+ } else if ((account_type == ATYPE_SECURITY_GLOBAL_GROUP) ||
+ (account_type == ATYPE_SECURITY_LOCAL_GROUP))
+ {
+ const struct ldb_val *v = ldb_msg_find_ldb_val(sam_msg, "gidNumber");
+ if (v) {
+ unixid->type = ID_TYPE_GID;
+ unixid->id = ldb_msg_find_attr_as_uint(sam_msg, "gidNumber", -1);
+ talloc_free(tmp_ctx);
+ return NT_STATUS_OK;
+ }
+ }
+ } else if (ret != LDB_ERR_NO_SUCH_OBJECT) {
+ DEBUG(1, ("Search for objectSid=%s gave '%s', failing to map to a SID!\n",
+ dom_sid_string(tmp_ctx, sid), ldb_errstring(idmap_ctx->samdb)));
+
+ status = NT_STATUS_NONE_MAPPED;
+ goto failed;
+ }
+
+ ret = ldb_search(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)));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NONE_MAPPED;
+ }
+
+ if (res->count == 1) {
+ const char *type = ldb_msg_find_attr_as_string(res->msgs[0],
+ "type", NULL);
+ new_xid = ldb_msg_find_attr_as_uint(res->msgs[0], "xidNumber",
+ -1);
+ if (new_xid == (uint32_t) -1) {
+ DEBUG(1, ("Invalid xid mapping.\n"));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NONE_MAPPED;
+ }
+
+ if (type == NULL) {
+ DEBUG(1, ("Invalid type for mapping entry.\n"));
+ talloc_free(tmp_ctx);
+ return NT_STATUS_NONE_MAPPED;
+ }
+
+ unixid->id = new_xid;
+
+ if (strcmp(type, "ID_TYPE_BOTH") == 0) {
+ unixid->type = ID_TYPE_BOTH;
+ } else if (strcmp(type, "ID_TYPE_UID") == 0) {
+ unixid->type = ID_TYPE_UID;
+ } else {
+ unixid->type = ID_TYPE_GID;
+ }
+
talloc_free(tmp_ctx);
return NT_STATUS_OK;
}
- DEBUG(6, ("uid not found in idmap db, trying to allocate SID.\n"));
+ DEBUG(6, ("No existing mapping found, attempting to create one.\n"));
trans = ldb_transaction_start(ldb);
if (trans != LDB_SUCCESS) {
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)(uidNumber=%u))",
- uid);
+ /* Redo the search to make sure noone changed the mapping while we
+ * weren't looking */
+ ret = ldb_search(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;
}
if (res->count > 0) {
- DEBUG(1, ("sidMap modified while trying to add a mapping.\n"));
+ DEBUG(1, ("Database changed while trying to add a sidmap.\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 (uid >= low && uid <= high) {
- /* An existing user would have been mapped before */
- status = NT_STATUS_NO_SUCH_USER;
+ dn = ldb_dn_new(tmp_ctx, ldb, "CN=CONFIG");
+ if (dn == NULL) {
+ status = NT_STATUS_NO_MEMORY;
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) {
+ ret = ldb_search(ldb, tmp_ctx, &res, dn, LDB_SCOPE_BASE, NULL, NULL);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(1, ("Search failed: %s\n", ldb_errstring(ldb)));
+ status = NT_STATUS_NONE_MAPPED;
+ goto failed;
+ }
+
+ 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], "xidNumber", -1);
+ if (hwm == (uint32_t)-1) {
+ hwm = low;
+ hwm_entry_exists = false;
+ } else {
+ hwm_entry_exists = true;
+ }
+
+ if (hwm > high) {
+ DEBUG(1, ("Out of xids 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;
}
- new_sid = dom_sid_add_rid(mem_ctx, unix_users_sid, uid + 1);
- if (new_sid == NULL) {
+ hwm_msg->dn = dn;
+
+ new_xid = 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, new_sid);
+ sid_string = dom_sid_string(tmp_ctx, sid);
if (sid_string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
- uid_string = talloc_asprintf(tmp_ctx, "%u", 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;
}
- msg = ldb_msg_new(tmp_ctx);
- if (msg == NULL) {
+ 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, "xidNumber");
+ 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;
+
+ 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, "xidNumber", LDB_FLAG_MOD_ADD,
+ NULL);
+ if (ret != LDB_SUCCESS) {
+ status = NT_STATUS_NONE_MAPPED;
+ goto failed;
+ }
+
+ ret = ldb_msg_add_string(hwm_msg, "xidNumber", hwm_string);
+ if (ret != LDB_SUCCESS)
+ {
+ status = NT_STATUS_NONE_MAPPED;
+ goto failed;
+ }
+ }
+
+ ret = ldb_modify(ldb, hwm_msg);
+ if (ret != LDB_SUCCESS) {
+ DEBUG(1, ("Updating the xid 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;
}
- msg->dn = ldb_dn_new_fmt(tmp_ctx, ldb, "CN=%s", sid_string);
- if (msg->dn == NULL) {
+ 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(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;
+ }
+
+ 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 = idmap_msg_add_dom_sid(idmap_ctx, tmp_ctx, msg, "objectSid",
- new_sid);
+ 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(msg, "objectClass", "sidMap");
+ ret = ldb_msg_add_string(map_msg, "type", "ID_TYPE_BOTH");
if (ret != LDB_SUCCESS) {
status = NT_STATUS_NONE_MAPPED;
goto failed;
}
- ret = ldb_msg_add_string(msg, "cn", sid_string);
+ 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, msg);
+ 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;
}
- *sid = new_sid;
+ unixid->id = new_xid;
+ unixid->type = ID_TYPE_BOTH;
talloc_free(tmp_ctx);
return NT_STATUS_OK;
}
/**
- * Map a Unix gid to the corresponding SID
- *
- * \todo Create a SID from the S-1-22-2 range for unmapped groups
+ * Convert an array of unixids to the corresponding array of SIDs
*
* \param idmap_ctx idmap context to use
- * \param mem_ctx talloc context the memory for the struct dom_sid is allocated
+ * \param mem_ctx talloc context the memory for the dom_sids 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.
+ * \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_gid_to_sid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
- const gid_t gid, struct dom_sid **sid)
-{
- return NT_STATUS_NONE_MAPPED;
-}
-/**
- * Map a SID to a Unix uid.
- *
- * If no mapping exists, a new mapping will be created.
- *
- * \todo Create mappings for users not from our primary domain.
- *
- * \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
- * \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_xids_to_sids(struct idmap_context *idmap_ctx,
+ TALLOC_CTX *mem_ctx,
+ struct id_map **id)
{
- return NT_STATUS_NONE_MAPPED;
+ unsigned int i, error_count = 0;
+ NTSTATUS status;
+
+ for (i = 0; id && id[i]; i++) {
+ status = idmap_xid_to_sid(idmap_ctx, mem_ctx,
+ &id[i]->xid, &id[i]->sid);
+ if (NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
+ status = idmap_xid_to_sid(idmap_ctx, mem_ctx,
+ &id[i]->xid,
+ &id[i]->sid);
+ }
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("idmapping xid_to_sid failed for id[%d]=%lu: %s\n",
+ i, (unsigned long)id[i]->xid.id, nt_errstr(status)));
+ error_count++;
+ id[i]->status = ID_UNMAPPED;
+ } else {
+ id[i]->status = ID_MAPPED;
+ }
+ }
+
+ if (error_count == i) {
+ /* 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;
+ }
}
/**
- * Map a SID to a Unix gid.
- *
- * If no mapping exist, a new mapping will be created.
- *
- * \todo Create mappings for groups not from our primary domain.
+ * Convert an array of SIDs to the corresponding array of unixids
*
* \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 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.
*/
-NTSTATUS idmap_sid_to_gid(struct idmap_context *idmap_ctx, TALLOC_CTX *mem_ctx,
- const struct dom_sid *sid, gid_t *gid)
+
+NTSTATUS idmap_sids_to_xids(struct idmap_context *idmap_ctx,
+ TALLOC_CTX *mem_ctx,
+ struct id_map **id)
{
- return NT_STATUS_NONE_MAPPED;
+ unsigned int i, error_count = 0;
+ NTSTATUS status;
+
+ for (i = 0; id && id[i]; i++) {
+ status = idmap_sid_to_xid(idmap_ctx, mem_ctx,
+ id[i]->sid, &id[i]->xid);
+ if (NT_STATUS_EQUAL(status, NT_STATUS_RETRY)) {
+ status = idmap_sid_to_xid(idmap_ctx, mem_ctx,
+ id[i]->sid,
+ &id[i]->xid);
+ }
+ if (!NT_STATUS_IS_OK(status)) {
+ char *str = dom_sid_string(mem_ctx, id[i]->sid);
+ DEBUG(1, ("idmapping sid_to_xid failed for id[%d]=%s: %s\n",
+ i, str, nt_errstr(status)));
+ talloc_free(str);
+ error_count++;
+ id[i]->status = ID_UNMAPPED;
+ } else {
+ id[i]->status = ID_MAPPED;
+ }
+ }
+
+ if (error_count == i) {
+ /* 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;
+ }
}
git.samba.org / samba.git / blobdiff