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mirror of https://github.com/samba-team/samba.git synced 2024-12-23 17:34:34 +03:00
samba-mirror/source4/winbind/idmap.c
Michael Adam 8bf311288b s4:idmap: break account_type check lines for readability in idmap_sid_to_xid()
Also makes code obey README.Coding, regarding line-length.

Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>

Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Mon May 27 00:05:19 CEST 2013 on sn-devel-104
2013-05-27 00:05:19 +02:00

851 lines
23 KiB
C

/*
Unix SMB/CIFS implementation.
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
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 "auth/auth.h"
#include "librpc/gen_ndr/ndr_security.h"
#include <ldb.h>
#include "ldb_wrap.h"
#include "param/param.h"
#include "winbind/idmap.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
*
* \param idmap_ctx idmap context to use
* \param low lower uid/gid bound is stored here
* \param high upper uid/gid bound is stored here
* \return 0 on success, nonzero on failure
*/
static int idmap_get_bounds(struct idmap_context *idmap_ctx, uint32_t *low,
uint32_t *high)
{
int ret = -1;
struct ldb_context *ldb = idmap_ctx->ldb_ctx;
struct ldb_dn *dn;
struct ldb_result *res = NULL;
TALLOC_CTX *tmp_ctx = talloc_new(idmap_ctx);
uint32_t lower_bound = (uint32_t) -1;
uint32_t upper_bound = (uint32_t) -1;
dn = ldb_dn_new(tmp_ctx, ldb, "CN=CONFIG");
if (dn == NULL) goto failed;
ret = ldb_search(ldb, tmp_ctx, &res, dn, LDB_SCOPE_BASE, NULL, NULL);
if (ret != LDB_SUCCESS) goto failed;
if (res->count != 1) {
ret = -1;
goto failed;
}
lower_bound = ldb_msg_find_attr_as_uint(res->msgs[0], "lowerBound", -1);
if (lower_bound != (uint32_t) -1) {
ret = LDB_SUCCESS;
} else {
ret = -1;
goto failed;
}
upper_bound = ldb_msg_find_attr_as_uint(res->msgs[0], "upperBound", -1);
if (upper_bound != (uint32_t) -1) {
ret = LDB_SUCCESS;
} else {
ret = -1;
}
failed:
talloc_free(tmp_ctx);
*low = lower_bound;
*high = upper_bound;
return ret;
}
/**
* Add a dom_sid structure to a ldb_message
* \param idmap_ctx idmap context to use
* \param mem_ctx talloc context to use
* \param ldb_message ldb message to add dom_sid to
* \param attr_name name of the attribute to store the dom_sid in
* \param sid dom_sid to store
* \return 0 on success, an ldb error code on failure.
*/
static int idmap_msg_add_dom_sid(struct idmap_context *idmap_ctx,
TALLOC_CTX *mem_ctx, struct ldb_message *msg,
const char *attr_name, const struct dom_sid *sid)
{
struct ldb_val val;
enum ndr_err_code ndr_err;
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 -1;
}
return ldb_msg_add_value(msg, attr_name, &val, NULL);
}
/**
* Get a dom_sid structure from a ldb message.
*
* \param mem_ctx talloc context to allocate dom_sid memory in
* \param msg ldb_message to get dom_sid from
* \param attr_name key that has the dom_sid as data
* \return dom_sid structure on success, NULL on failure
*/
static struct dom_sid *idmap_msg_get_dom_sid(TALLOC_CTX *mem_ctx,
struct ldb_message *msg, const char *attr_name)
{
struct dom_sid *sid;
const struct ldb_val *val;
enum ndr_err_code ndr_err;
val = ldb_msg_find_ldb_val(msg, attr_name);
if (val == NULL) {
return NULL;
}
sid = talloc(mem_ctx, struct dom_sid);
if (sid == NULL) {
return NULL;
}
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 NULL;
}
return sid;
}
/**
* Initialize idmap context
*
* talloc_free to close.
*
* \param mem_ctx talloc context to use.
* \return allocated idmap_context on success, NULL on error
*/
struct idmap_context *idmap_init(TALLOC_CTX *mem_ctx,
struct tevent_context *ev_ctx,
struct loadparm_context *lp_ctx)
{
struct idmap_context *idmap_ctx;
idmap_ctx = talloc(mem_ctx, struct idmap_context);
if (idmap_ctx == NULL) {
return NULL;
}
idmap_ctx->lp_ctx = lp_ctx;
idmap_ctx->ldb_ctx = ldb_wrap_connect(mem_ctx, ev_ctx, lp_ctx,
"idmap.ldb",
system_session(lp_ctx),
NULL, 0);
if (idmap_ctx->ldb_ctx == NULL) {
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;
}
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"));
return NULL;
}
return idmap_ctx;
}
/**
* 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 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.
*/
static 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_result *res = NULL;
struct ldb_message *msg;
struct dom_sid *unix_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(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;
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;
}
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 = dom_sid_parse_talloc(tmp_ctx, "S-1-22-1");
} else {
unix_sid = dom_sid_parse_talloc(tmp_ctx, "S-1-22-2");
}
if (unix_sid == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
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, ("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(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;
}
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, 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;
}
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, sid);
if (sid_string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
unixid_string = talloc_asprintf(tmp_ctx, "%u", new_xid);
if (unixid_string == NULL) {
status = NT_STATUS_NO_MEMORY;
goto failed;
}
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;
}
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, "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 = 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, "type", "ID_TYPE_BOTH");
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;
}
unixid->id = new_xid;
unixid->type = ID_TYPE_BOTH;
talloc_free(tmp_ctx);
return NT_STATUS_OK;
failed:
if (trans == LDB_SUCCESS) ldb_transaction_cancel(ldb);
talloc_free(tmp_ctx);
return status;
}
/**
* 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 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_xids_to_sids(struct idmap_context *idmap_ctx,
TALLOC_CTX *mem_ctx,
struct id_map **id)
{
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;
}
}
/**
* 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.
*/
NTSTATUS idmap_sids_to_xids(struct idmap_context *idmap_ctx,
TALLOC_CTX *mem_ctx,
struct id_map **id)
{
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;
}
}