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samba-mirror/source3/passdb/pdb_ldap.c
Joseph Sutton 67f3fead5f s3:passdb: Initialize ‘tm’ structure 
‘tm’ must be initialized prior to calling strptime().

Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
2023-09-27 02:43:28 +00:00

6822 lines
180 KiB
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/*
Unix SMB/CIFS implementation.
LDAP protocol helper functions for SAMBA
Copyright (C) Jean François Micouleau 1998
Copyright (C) Gerald Carter 2001-2003
Copyright (C) Shahms King 2001
Copyright (C) Andrew Bartlett 2002-2003
Copyright (C) Stefan (metze) Metzmacher 2002-2003
Copyright (C) Simo Sorce 2006
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/>.
*/
/* TODO:
* persistent connections: if using NSS LDAP, many connections are made
* however, using only one within Samba would be nice
*
* Clean up SSL stuff, compile on OpenLDAP 1.x, 2.x, and Netscape SDK
*
* Other LDAP based login attributes: accountExpires, etc.
* (should be the domain of Samba proper, but the sam_password/struct samu
* structures don't have fields for some of these attributes)
*
* SSL is done, but can't get the certificate based authentication to work
* against on my test platform (Linux 2.4, OpenLDAP 2.x)
*/
/* NOTE: this will NOT work against an Active Directory server
* due to the fact that the two password fields cannot be retrieved
* from a server; recommend using security = domain in this situation
* and/or winbind
*/
#include "includes.h"
#include "passdb.h"
#include "../libcli/auth/libcli_auth.h"
#include "secrets.h"
#include "idmap_cache.h"
#include "../libcli/security/security.h"
#include "../lib/util/util_pw.h"
#include "lib/winbind_util.h"
#include "librpc/gen_ndr/idmap.h"
#include "lib/param/loadparm.h"
#include "lib/util_sid_passdb.h"
#include "lib/util/smb_strtox.h"
#include "lib/util/string_wrappers.h"
#include "source3/lib/substitute.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_PASSDB
#include <lber.h>
#include <ldap.h>
#include "smbldap.h"
#include "passdb/pdb_ldap.h"
#include "passdb/pdb_nds.h"
#include "passdb/pdb_ldap_util.h"
#include "passdb/pdb_ldap_schema.h"
/**********************************************************************
Simple helper function to make stuff better readable
**********************************************************************/
LDAP *priv2ld(struct ldapsam_privates *priv)
{
return smbldap_get_ldap(priv->smbldap_state);
}
/**********************************************************************
Get the attribute name given a user schame version.
**********************************************************************/
static const char* get_userattr_key2string( int schema_ver, int key )
{
switch ( schema_ver ) {
case SCHEMAVER_SAMBASAMACCOUNT:
return get_attr_key2string( attrib_map_v30, key );
default:
DEBUG(0,("get_userattr_key2string: unknown schema version specified\n"));
break;
}
return NULL;
}
/**********************************************************************
Return the list of attribute names given a user schema version.
**********************************************************************/
const char** get_userattr_list( TALLOC_CTX *mem_ctx, int schema_ver )
{
switch ( schema_ver ) {
case SCHEMAVER_SAMBASAMACCOUNT:
return get_attr_list( mem_ctx, attrib_map_v30 );
default:
DEBUG(0,("get_userattr_list: unknown schema version specified!\n"));
break;
}
return NULL;
}
/**************************************************************************
Return the list of attribute names to delete given a user schema version.
**************************************************************************/
static const char** get_userattr_delete_list( TALLOC_CTX *mem_ctx,
int schema_ver )
{
switch ( schema_ver ) {
case SCHEMAVER_SAMBASAMACCOUNT:
return get_attr_list( mem_ctx,
attrib_map_to_delete_v30 );
default:
DEBUG(0,("get_userattr_delete_list: unknown schema version specified!\n"));
break;
}
return NULL;
}
/*******************************************************************
Generate the LDAP search filter for the objectclass based on the
version of the schema we are using.
******************************************************************/
static const char* get_objclass_filter( int schema_ver )
{
fstring objclass_filter;
char *result;
switch( schema_ver ) {
case SCHEMAVER_SAMBASAMACCOUNT:
fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBASAMACCOUNT );
break;
default:
DEBUG(0,("get_objclass_filter: Invalid schema version specified!\n"));
objclass_filter[0] = '\0';
break;
}
result = talloc_strdup(talloc_tos(), objclass_filter);
SMB_ASSERT(result != NULL);
return result;
}
/*****************************************************************
Scan a sequence number off OpenLDAP's syncrepl contextCSN
******************************************************************/
static NTSTATUS ldapsam_get_seq_num(struct pdb_methods *my_methods, time_t *seq_num)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
LDAPMessage *msg = NULL;
LDAPMessage *entry = NULL;
TALLOC_CTX *mem_ctx;
char **values = NULL;
int rc, num_result, num_values, rid;
char *suffix = NULL;
char *tok;
const char *p;
const char **attrs;
/* Unfortunately there is no proper way to detect syncrepl-support in
* smbldap_connect_system(). The syncrepl OIDs are submitted for publication
* but do not show up in the root-DSE yet. Neither we can query the
* subschema-context for the syncProviderSubentry or syncConsumerSubentry
* objectclass. Currently we require lp_ldap_suffix() to show up as
* namingContext. - Guenther
*/
if (!lp_parm_bool(-1, "ldapsam", "syncrepl_seqnum", False)) {
return ntstatus;
}
if (!seq_num) {
DEBUG(3,("ldapsam_get_seq_num: no sequence_number\n"));
return ntstatus;
}
if (!smbldap_has_naming_context(
smbldap_get_ldap(ldap_state->smbldap_state),
lp_ldap_suffix())) {
DEBUG(3,("ldapsam_get_seq_num: DIT not configured to hold %s "
"as top-level namingContext\n", lp_ldap_suffix()));
return ntstatus;
}
mem_ctx = talloc_init("ldapsam_get_seq_num");
if (mem_ctx == NULL)
return NT_STATUS_NO_MEMORY;
if ((attrs = talloc_array(mem_ctx, const char *, 2)) == NULL) {
ntstatus = NT_STATUS_NO_MEMORY;
goto done;
}
/* if we got a syncrepl-rid (up to three digits long) we speak with a consumer */
rid = lp_parm_int(-1, "ldapsam", "syncrepl_rid", -1);
if (rid > 0) {
/* consumer syncreplCookie: */
/* csn=20050126161620Z#0000001#00#00000 */
attrs[0] = talloc_strdup(mem_ctx, "syncreplCookie");
attrs[1] = NULL;
suffix = talloc_asprintf(mem_ctx,
"cn=syncrepl%d,%s", rid, lp_ldap_suffix());
if (!suffix) {
ntstatus = NT_STATUS_NO_MEMORY;
goto done;
}
} else {
/* provider contextCSN */
/* 20050126161620Z#000009#00#000000 */
attrs[0] = talloc_strdup(mem_ctx, "contextCSN");
attrs[1] = NULL;
suffix = talloc_asprintf(mem_ctx,
"cn=ldapsync,%s", lp_ldap_suffix());
if (!suffix) {
ntstatus = NT_STATUS_NO_MEMORY;
goto done;
}
}
rc = smbldap_search(ldap_state->smbldap_state, suffix,
LDAP_SCOPE_BASE, "(objectclass=*)", attrs, 0, &msg);
if (rc != LDAP_SUCCESS) {
goto done;
}
num_result = ldap_count_entries(
smbldap_get_ldap(ldap_state->smbldap_state), msg);
if (num_result != 1) {
DEBUG(3,("ldapsam_get_seq_num: Expected one entry, got %d\n", num_result));
goto done;
}
entry = ldap_first_entry(
smbldap_get_ldap(ldap_state->smbldap_state), msg);
if (entry == NULL) {
DEBUG(3,("ldapsam_get_seq_num: Could not retrieve entry\n"));
goto done;
}
values = ldap_get_values(
smbldap_get_ldap(ldap_state->smbldap_state), entry, attrs[0]);
if (values == NULL) {
DEBUG(3,("ldapsam_get_seq_num: no values\n"));
goto done;
}
num_values = ldap_count_values(values);
if (num_values == 0) {
DEBUG(3,("ldapsam_get_seq_num: not a single value\n"));
goto done;
}
p = values[0];
if (!next_token_talloc(mem_ctx, &p, &tok, "#")) {
DEBUG(0,("ldapsam_get_seq_num: failed to parse sequence number\n"));
goto done;
}
p = tok;
if (!strncmp(p, "csn=", strlen("csn=")))
p += strlen("csn=");
DEBUG(10,("ldapsam_get_seq_num: got %s: %s\n", attrs[0], p));
*seq_num = generalized_to_unix_time(p);
/* very basic sanity check */
if (*seq_num <= 0) {
DEBUG(3,("ldapsam_get_seq_num: invalid sequence number: %d\n",
(int)*seq_num));
goto done;
}
ntstatus = NT_STATUS_OK;
done:
if (values != NULL)
ldap_value_free(values);
if (msg != NULL)
ldap_msgfree(msg);
if (mem_ctx)
talloc_destroy(mem_ctx);
return ntstatus;
}
/*******************************************************************
Run the search by name.
******************************************************************/
int ldapsam_search_suffix_by_name(struct ldapsam_privates *ldap_state,
const char *user,
LDAPMessage ** result,
const char **attr)
{
char *filter = NULL;
char *escape_user = escape_ldap_string(talloc_tos(), user);
int ret = -1;
if (!escape_user) {
return LDAP_NO_MEMORY;
}
/*
* in the filter expression, replace %u with the real name
* so in ldap filter, %u MUST exist :-)
*/
filter = talloc_asprintf(talloc_tos(), "(&%s%s)", "(uid=%u)",
get_objclass_filter(ldap_state->schema_ver));
if (!filter) {
TALLOC_FREE(escape_user);
return LDAP_NO_MEMORY;
}
/*
* have to use this here because $ is filtered out
* in string_sub
*/
filter = talloc_all_string_sub(talloc_tos(),
filter, "%u", escape_user);
TALLOC_FREE(escape_user);
if (!filter) {
return LDAP_NO_MEMORY;
}
ret = smbldap_search_suffix(ldap_state->smbldap_state,
filter, attr, result);
TALLOC_FREE(filter);
return ret;
}
/*******************************************************************
Run the search by SID.
******************************************************************/
static int ldapsam_search_suffix_by_sid (struct ldapsam_privates *ldap_state,
const struct dom_sid *sid, LDAPMessage ** result,
const char **attr)
{
char *filter = NULL;
int rc;
struct dom_sid_buf sid_string;
filter = talloc_asprintf(talloc_tos(), "(&(%s=%s)%s)",
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_USER_SID),
dom_sid_str_buf(sid, &sid_string),
get_objclass_filter(ldap_state->schema_ver));
if (!filter) {
return LDAP_NO_MEMORY;
}
rc = smbldap_search_suffix(ldap_state->smbldap_state,
filter, attr, result);
TALLOC_FREE(filter);
return rc;
}
/*******************************************************************
Delete complete object or objectclass and attrs from
object found in search_result depending on lp_ldap_delete_dn
******************************************************************/
static int ldapsam_delete_entry(struct ldapsam_privates *priv,
TALLOC_CTX *mem_ctx,
LDAPMessage *entry,
const char *objectclass,
const char **attrs)
{
LDAPMod **mods = NULL;
char *name;
const char *dn;
BerElement *ptr = NULL;
dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry);
if (dn == NULL) {
return LDAP_NO_MEMORY;
}
if (lp_ldap_delete_dn()) {
return smbldap_delete(priv->smbldap_state, dn);
}
/* Ok, delete only the SAM attributes */
for (name = ldap_first_attribute(priv2ld(priv), entry, &ptr);
name != NULL;
name = ldap_next_attribute(priv2ld(priv), entry, ptr)) {
const char **attrib;
/* We are only allowed to delete the attributes that
really exist. */
for (attrib = attrs; *attrib != NULL; attrib++) {
if (strequal(*attrib, name)) {
DEBUG(10, ("ldapsam_delete_entry: deleting "
"attribute %s\n", name));
smbldap_set_mod(&mods, LDAP_MOD_DELETE, name,
NULL);
}
}
ldap_memfree(name);
}
if (ptr != NULL) {
ber_free(ptr, 0);
}
smbldap_set_mod(&mods, LDAP_MOD_DELETE, "objectClass", objectclass);
smbldap_talloc_autofree_ldapmod(mem_ctx, mods);
return smbldap_modify(priv->smbldap_state, dn, mods);
}
static time_t ldapsam_get_entry_timestamp( struct ldapsam_privates *ldap_state, LDAPMessage * entry)
{
char *temp;
struct tm tm = {};
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state), entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_MOD_TIMESTAMP),
talloc_tos());
if (!temp) {
return (time_t) 0;
}
if ( !strptime(temp, "%Y%m%d%H%M%SZ", &tm)) {
DEBUG(2,("ldapsam_get_entry_timestamp: strptime failed on: %s\n",
(char*)temp));
TALLOC_FREE(temp);
return (time_t) 0;
}
TALLOC_FREE(temp);
tzset();
return timegm(&tm);
}
/**********************************************************************
Initialize struct samu from an LDAP query.
(Based on init_sam_from_buffer in pdb_tdb.c)
*********************************************************************/
static bool init_sam_from_ldap(struct ldapsam_privates *ldap_state,
struct samu * sampass,
LDAPMessage * entry)
{
time_t logon_time,
logoff_time,
kickoff_time,
pass_last_set_time,
pass_can_change_time,
ldap_entry_time,
bad_password_time;
char *username = NULL,
*domain = NULL,
*nt_username = NULL,
*fullname = NULL,
*homedir = NULL,
*dir_drive = NULL,
*logon_script = NULL,
*profile_path = NULL,
*acct_desc = NULL,
*workstations = NULL,
*munged_dial = NULL;
uint32_t user_rid;
uint8_t smblmpwd[LM_HASH_LEN],
smbntpwd[NT_HASH_LEN];
bool use_samba_attrs = True;
uint16_t logon_divs;
uint16_t bad_password_count = 0,
logon_count = 0;
uint32_t hours_len;
uint8_t hours[MAX_HOURS_LEN];
char *temp = NULL;
struct login_cache cache_entry;
uint32_t pwHistLen;
bool expand_explicit = lp_passdb_expand_explicit();
bool ret = false;
TALLOC_CTX *ctx = talloc_init("init_sam_from_ldap");
if (!ctx) {
return false;
}
if (sampass == NULL || ldap_state == NULL || entry == NULL) {
DEBUG(0, ("init_sam_from_ldap: NULL parameters found!\n"));
goto fn_exit;
}
if (priv2ld(ldap_state) == NULL) {
DEBUG(0, ("init_sam_from_ldap: ldap_state->smbldap_state->"
"ldap_struct is NULL!\n"));
goto fn_exit;
}
if (!(username = smbldap_talloc_first_attribute(priv2ld(ldap_state),
entry,
"uid",
ctx))) {
DEBUG(1, ("init_sam_from_ldap: No uid attribute found for "
"this user!\n"));
goto fn_exit;
}
DEBUG(2, ("init_sam_from_ldap: Entry found for user: %s\n", username));
nt_username = talloc_strdup(ctx, username);
if (!nt_username) {
goto fn_exit;
}
domain = talloc_strdup(ctx, ldap_state->domain_name);
if (!domain) {
goto fn_exit;
}
pdb_set_username(sampass, username, PDB_SET);
pdb_set_domain(sampass, domain, PDB_DEFAULT);
pdb_set_nt_username(sampass, nt_username, PDB_SET);
/* deal with different attributes between the schema first */
if ( ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ) {
if ((temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_USER_SID),
ctx))!=NULL) {
pdb_set_user_sid_from_string(sampass, temp, PDB_SET);
}
} else {
if ((temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_USER_RID),
ctx))!=NULL) {
user_rid = (uint32_t)atol(temp);
pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
}
}
if (IS_SAM_DEFAULT(sampass, PDB_USERSID)) {
DEBUG(1, ("init_sam_from_ldap: no %s or %s attribute found for this user %s\n",
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_USER_SID),
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_USER_RID),
username));
return False;
}
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_PWD_LAST_SET),
ctx);
if (temp) {
pass_last_set_time = (time_t) atol(temp);
pdb_set_pass_last_set_time(sampass,
pass_last_set_time, PDB_SET);
}
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_LOGON_TIME),
ctx);
if (temp) {
logon_time = (time_t) atol(temp);
pdb_set_logon_time(sampass, logon_time, PDB_SET);
}
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_LOGOFF_TIME),
ctx);
if (temp) {
logoff_time = (time_t) atol(temp);
pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
}
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_KICKOFF_TIME),
ctx);
if (temp) {
kickoff_time = (time_t) atol(temp);
pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
}
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_PWD_CAN_CHANGE),
ctx);
if (temp) {
pass_can_change_time = (time_t) atol(temp);
pdb_set_pass_can_change_time(sampass,
pass_can_change_time, PDB_SET);
}
/* recommend that 'gecos' and 'displayName' should refer to the same
* attribute OID. userFullName depreciated, only used by Samba
* primary rules of LDAP: don't make a new attribute when one is already defined
* that fits your needs; using cn then displayName rather than 'userFullName'
*/
fullname = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_DISPLAY_NAME),
ctx);
if (fullname) {
pdb_set_fullname(sampass, fullname, PDB_SET);
} else {
fullname = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_CN),
ctx);
if (fullname) {
pdb_set_fullname(sampass, fullname, PDB_SET);
}
}
dir_drive = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_HOME_DRIVE),
ctx);
if (dir_drive) {
pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
} else {
pdb_set_dir_drive( sampass, lp_logon_drive(), PDB_DEFAULT );
}
homedir = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_HOME_PATH),
ctx);
if (homedir) {
if (expand_explicit) {
homedir = talloc_sub_basic(ctx,
username,
domain,
homedir);
if (!homedir) {
goto fn_exit;
}
}
pdb_set_homedir(sampass, homedir, PDB_SET);
} else {
pdb_set_homedir(sampass,
talloc_sub_basic(ctx, username, domain,
lp_logon_home()),
PDB_DEFAULT);
}
logon_script = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_LOGON_SCRIPT),
ctx);
if (logon_script) {
if (expand_explicit) {
logon_script = talloc_sub_basic(ctx,
username,
domain,
logon_script);
if (!logon_script) {
goto fn_exit;
}
}
pdb_set_logon_script(sampass, logon_script, PDB_SET);
} else {
pdb_set_logon_script(sampass,
talloc_sub_basic(ctx, username, domain,
lp_logon_script()),
PDB_DEFAULT );
}
profile_path = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_PROFILE_PATH),
ctx);
if (profile_path) {
if (expand_explicit) {
profile_path = talloc_sub_basic(ctx,
username,
domain,
profile_path);
if (!profile_path) {
goto fn_exit;
}
}
pdb_set_profile_path(sampass, profile_path, PDB_SET);
} else {
pdb_set_profile_path(sampass,
talloc_sub_basic(ctx, username, domain,
lp_logon_path()),
PDB_DEFAULT );
}
acct_desc = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_DESC),
ctx);
if (acct_desc) {
pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
}
workstations = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_USER_WKS),
ctx);
if (workstations) {
pdb_set_workstations(sampass, workstations, PDB_SET);
}
munged_dial = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_MUNGED_DIAL),
ctx);
if (munged_dial) {
pdb_set_munged_dial(sampass, munged_dial, PDB_SET);
}
/* FIXME: hours stuff should be cleaner */
logon_divs = 168;
hours_len = 21;
memset(hours, 0xff, hours_len);
if (ldap_state->is_nds_ldap) {
char *user_dn;
size_t pwd_len;
char clear_text_pw[512];
/* Make call to Novell eDirectory ldap extension to get clear text password.
NOTE: This will only work if we have an SSL connection to eDirectory. */
user_dn = smbldap_talloc_dn(
ctx, smbldap_get_ldap(ldap_state->smbldap_state),
entry);
if (user_dn != NULL) {
DEBUG(3, ("init_sam_from_ldap: smbldap_talloc_dn(ctx, %s) returned '%s'\n", username, user_dn));
pwd_len = sizeof(clear_text_pw);
if (pdb_nds_get_password(ldap_state->smbldap_state, user_dn, &pwd_len, clear_text_pw) == LDAP_SUCCESS) {
nt_lm_owf_gen(clear_text_pw, smbntpwd, smblmpwd);
if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
TALLOC_FREE(user_dn);
return False;
}
ZERO_STRUCT(smblmpwd);
if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
TALLOC_FREE(user_dn);
return False;
}
ZERO_STRUCT(smbntpwd);
use_samba_attrs = False;
}
TALLOC_FREE(user_dn);
} else {
DEBUG(0, ("init_sam_from_ldap: failed to get user_dn for '%s'\n", username));
}
}
if (use_samba_attrs) {
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_LMPW),
ctx);
if (temp) {
pdb_gethexpwd(temp, smblmpwd);
memset((char *)temp, '\0', strlen(temp)+1);
if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET)) {
goto fn_exit;
}
ZERO_STRUCT(smblmpwd);
}
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_NTPW),
ctx);
if (temp) {
pdb_gethexpwd(temp, smbntpwd);
memset((char *)temp, '\0', strlen(temp)+1);
if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
goto fn_exit;
}
ZERO_STRUCT(smbntpwd);
}
}
pwHistLen = 0;
pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
if (pwHistLen > 0){
uint8_t *pwhist = NULL;
int i;
char *history_string = talloc_array(ctx, char,
MAX_PW_HISTORY_LEN*64);
if (!history_string) {
goto fn_exit;
}
pwHistLen = MIN(pwHistLen, MAX_PW_HISTORY_LEN);
pwhist = talloc_zero_array(ctx, uint8_t,
pwHistLen * PW_HISTORY_ENTRY_LEN);
if (pwhist == NULL) {
DEBUG(0, ("init_sam_from_ldap: talloc failed!\n"));
goto fn_exit;
}
if (smbldap_get_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_PWD_HISTORY),
history_string,
MAX_PW_HISTORY_LEN*64)) {
bool hex_failed = false;
for (i = 0; i < pwHistLen; i++){
/* Get the 16 byte salt. */
if (!pdb_gethexpwd(&history_string[i*64],
&pwhist[i*PW_HISTORY_ENTRY_LEN])) {
hex_failed = true;
break;
}
/* Get the 16 byte MD5 hash of salt+passwd. */
if (!pdb_gethexpwd(&history_string[(i*64)+32],
&pwhist[(i*PW_HISTORY_ENTRY_LEN)+
PW_HISTORY_SALT_LEN])) {
hex_failed = True;
break;
}
}
if (hex_failed) {
DEBUG(2,("init_sam_from_ldap: Failed to get password history for user %s\n",
username));
memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
}
}
if (!pdb_set_pw_history(sampass, pwhist, pwHistLen, PDB_SET)){
goto fn_exit;
}
}
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_ACB_INFO),
ctx);
if (temp) {
uint32_t acct_ctrl = 0;
acct_ctrl = pdb_decode_acct_ctrl(temp);
if (acct_ctrl == 0) {
acct_ctrl |= ACB_NORMAL;
}
pdb_set_acct_ctrl(sampass, acct_ctrl, PDB_SET);
}
pdb_set_hours_len(sampass, hours_len, PDB_SET);
pdb_set_logon_divs(sampass, logon_divs, PDB_SET);
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_BAD_PASSWORD_COUNT),
ctx);
if (temp) {
bad_password_count = (uint32_t) atol(temp);
pdb_set_bad_password_count(sampass,
bad_password_count, PDB_SET);
}
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_BAD_PASSWORD_TIME),
ctx);
if (temp) {
bad_password_time = (time_t) atol(temp);
pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
}
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_LOGON_COUNT),
ctx);
if (temp) {
logon_count = (uint32_t) atol(temp);
pdb_set_logon_count(sampass, logon_count, PDB_SET);
}
/* pdb_set_unknown_6(sampass, unknown6, PDB_SET); */
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_LOGON_HOURS),
ctx);
if (temp) {
pdb_gethexhours(temp, hours);
memset((char *)temp, '\0', strlen(temp) +1);
pdb_set_hours(sampass, hours, hours_len, PDB_SET);
ZERO_STRUCT(hours);
}
if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
struct passwd unix_pw;
bool have_uid = false;
bool have_gid = false;
struct dom_sid mapped_gsid;
const struct dom_sid *primary_gsid;
struct unixid id;
int error = 0;
ZERO_STRUCT(unix_pw);
unix_pw.pw_name = username;
unix_pw.pw_passwd = discard_const_p(char, "x");
temp = smbldap_talloc_single_attribute(
priv2ld(ldap_state),
entry,
"uidNumber",
ctx);
if (temp) {
/* We've got a uid, feed the cache */
unix_pw.pw_uid = smb_strtoul(temp,
NULL,
10,
&error,
SMB_STR_STANDARD);
if (error != 0) {
DBG_ERR("Failed to convert UID\n");
goto fn_exit;
}
have_uid = true;
}
temp = smbldap_talloc_single_attribute(
priv2ld(ldap_state),
entry,
"gidNumber",
ctx);
if (temp) {
/* We've got a uid, feed the cache */
unix_pw.pw_gid = smb_strtoul(temp,
NULL,
10,
&error,
SMB_STR_STANDARD);
if (error != 0) {
DBG_ERR("Failed to convert GID\n");
goto fn_exit;
}
have_gid = true;
}
unix_pw.pw_gecos = smbldap_talloc_single_attribute(
priv2ld(ldap_state),
entry,
"gecos",
ctx);
if (unix_pw.pw_gecos == NULL) {
unix_pw.pw_gecos = fullname;
}
unix_pw.pw_dir = smbldap_talloc_single_attribute(
priv2ld(ldap_state),
entry,
"homeDirectory",
ctx);
if (unix_pw.pw_dir == NULL) {
unix_pw.pw_dir = discard_const_p(char, "");
}
unix_pw.pw_shell = smbldap_talloc_single_attribute(
priv2ld(ldap_state),
entry,
"loginShell",
ctx);
if (unix_pw.pw_shell == NULL) {
unix_pw.pw_shell = discard_const_p(char, "");
}
if (have_uid && have_gid) {
sampass->unix_pw = tcopy_passwd(sampass, &unix_pw);
} else {
sampass->unix_pw = Get_Pwnam_alloc(sampass, unix_pw.pw_name);
}
if (sampass->unix_pw == NULL) {
DEBUG(0,("init_sam_from_ldap: Failed to find Unix account for %s\n",
pdb_get_username(sampass)));
goto fn_exit;
}
id.id = sampass->unix_pw->pw_uid;
id.type = ID_TYPE_UID;
idmap_cache_set_sid2unixid(pdb_get_user_sid(sampass), &id);
gid_to_sid(&mapped_gsid, sampass->unix_pw->pw_gid);
primary_gsid = pdb_get_group_sid(sampass);
if (primary_gsid && dom_sid_equal(primary_gsid, &mapped_gsid)) {
id.id = sampass->unix_pw->pw_gid;
id.type = ID_TYPE_GID;
idmap_cache_set_sid2unixid(primary_gsid, &id);
}
}
/* check the timestamp of the cache vs ldap entry */
if (!(ldap_entry_time = ldapsam_get_entry_timestamp(ldap_state,
entry))) {
ret = true;
goto fn_exit;
}
/* see if we have newer updates */
if (!login_cache_read(sampass, &cache_entry)) {
DEBUG (9, ("No cache entry, bad count = %u, bad time = %u\n",
(unsigned int)pdb_get_bad_password_count(sampass),
(unsigned int)pdb_get_bad_password_time(sampass)));
ret = true;
goto fn_exit;
}
DEBUG(7, ("ldap time is %u, cache time is %u, bad time = %u\n",
(unsigned int)ldap_entry_time,
(unsigned int)cache_entry.entry_timestamp,
(unsigned int)cache_entry.bad_password_time));
if (ldap_entry_time > cache_entry.entry_timestamp) {
/* cache is older than directory , so
we need to delete the entry but allow the
fields to be written out */
login_cache_delentry(sampass);
} else {
/* read cache in */
pdb_set_acct_ctrl(sampass,
pdb_get_acct_ctrl(sampass) |
(cache_entry.acct_ctrl & ACB_AUTOLOCK),
PDB_SET);
pdb_set_bad_password_count(sampass,
cache_entry.bad_password_count,
PDB_SET);
pdb_set_bad_password_time(sampass,
cache_entry.bad_password_time,
PDB_SET);
}
ret = true;
fn_exit:
TALLOC_FREE(ctx);
return ret;
}
/**********************************************************************
Initialize the ldap db from a struct samu. Called on update.
(Based on init_buffer_from_sam in pdb_tdb.c)
*********************************************************************/
static bool init_ldap_from_sam (struct ldapsam_privates *ldap_state,
LDAPMessage *existing,
LDAPMod *** mods, struct samu * sampass,
bool (*need_update)(const struct samu *,
enum pdb_elements))
{
char *temp = NULL;
if (mods == NULL || sampass == NULL) {
DEBUG(0, ("init_ldap_from_sam: NULL parameters found!\n"));
return False;
}
*mods = NULL;
/*
* took out adding "objectclass: sambaAccount"
* do this on a per-mod basis
*/
if (need_update(sampass, PDB_USERNAME)) {
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
"uid", pdb_get_username(sampass));
if (ldap_state->is_nds_ldap) {
smbldap_make_mod(
smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
"cn", pdb_get_username(sampass));
smbldap_make_mod(
smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
"sn", pdb_get_username(sampass));
}
}
DEBUG(2, ("init_ldap_from_sam: Setting entry for user: %s\n", pdb_get_username(sampass)));
/* only update the RID if we actually need to */
if (need_update(sampass, PDB_USERSID)) {
struct dom_sid_buf sid_str;
const struct dom_sid *user_sid = pdb_get_user_sid(sampass);
switch ( ldap_state->schema_ver ) {
case SCHEMAVER_SAMBASAMACCOUNT:
smbldap_make_mod(
smbldap_get_ldap(
ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
dom_sid_str_buf(user_sid, &sid_str));
break;
default:
DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
break;
}
}
/* we don't need to store the primary group RID - so leaving it
'free' to hang off the unix primary group makes life easier */
if (need_update(sampass, PDB_GROUPSID)) {
struct dom_sid_buf sid_str;
const struct dom_sid *group_sid = pdb_get_group_sid(sampass);
switch ( ldap_state->schema_ver ) {
case SCHEMAVER_SAMBASAMACCOUNT:
smbldap_make_mod(
smbldap_get_ldap(
ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_PRIMARY_GROUP_SID),
dom_sid_str_buf(group_sid, &sid_str));
break;
default:
DEBUG(0,("init_ldap_from_sam: unknown schema version specified\n"));
break;
}
}
/* displayName, cn, and gecos should all be the same
* most easily accomplished by giving them the same OID
* gecos isn't set here b/c it should be handled by the
* add-user script
* We change displayName only and fall back to cn if
* it does not exist.
*/
if (need_update(sampass, PDB_FULLNAME))
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME),
pdb_get_fullname(sampass));
if (need_update(sampass, PDB_ACCTDESC))
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC),
pdb_get_acct_desc(sampass));
if (need_update(sampass, PDB_WORKSTATIONS))
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS),
pdb_get_workstations(sampass));
if (need_update(sampass, PDB_MUNGEDDIAL))
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL),
pdb_get_munged_dial(sampass));
if (need_update(sampass, PDB_SMBHOME))
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH),
pdb_get_homedir(sampass));
if (need_update(sampass, PDB_DRIVE))
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE),
pdb_get_dir_drive(sampass));
if (need_update(sampass, PDB_LOGONSCRIPT))
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT),
pdb_get_logon_script(sampass));
if (need_update(sampass, PDB_PROFILE))
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH),
pdb_get_profile_path(sampass));
if (asprintf(&temp, "%li", (long int)pdb_get_logon_time(sampass)) < 0) {
return false;
}
if (need_update(sampass, PDB_LOGONTIME))
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp);
SAFE_FREE(temp);
if (asprintf(&temp, "%li", (long int)pdb_get_logoff_time(sampass)) < 0) {
return false;
}
if (need_update(sampass, PDB_LOGOFFTIME))
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp);
SAFE_FREE(temp);
if (asprintf(&temp, "%li", (long int)pdb_get_kickoff_time(sampass)) < 0) {
return false;
}
if (need_update(sampass, PDB_KICKOFFTIME))
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp);
SAFE_FREE(temp);
if (asprintf(&temp, "%li", (long int)pdb_get_pass_can_change_time_noncalc(sampass)) < 0) {
return false;
}
if (need_update(sampass, PDB_CANCHANGETIME))
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp);
SAFE_FREE(temp);
if ((pdb_get_acct_ctrl(sampass)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST))
|| (lp_ldap_passwd_sync()!=LDAP_PASSWD_SYNC_ONLY)) {
if (need_update(sampass, PDB_LMPASSWD)) {
const uchar *lm_pw = pdb_get_lanman_passwd(sampass);
if (lm_pw) {
char pwstr[34];
pdb_sethexpwd(pwstr, lm_pw,
pdb_get_acct_ctrl(sampass));
smbldap_make_mod(
smbldap_get_ldap(
ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
pwstr);
} else {
smbldap_make_mod(
smbldap_get_ldap(
ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
NULL);
}
}
if (need_update(sampass, PDB_NTPASSWD)) {
const uchar *nt_pw = pdb_get_nt_passwd(sampass);
if (nt_pw) {
char pwstr[34];
pdb_sethexpwd(pwstr, nt_pw,
pdb_get_acct_ctrl(sampass));
smbldap_make_mod(
smbldap_get_ldap(
ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
pwstr);
} else {
smbldap_make_mod(
smbldap_get_ldap(
ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
NULL);
}
}
if (need_update(sampass, PDB_PWHISTORY)) {
char *pwstr = NULL;
uint32_t pwHistLen = 0;
pdb_get_account_policy(PDB_POLICY_PASSWORD_HISTORY, &pwHistLen);
pwstr = SMB_MALLOC_ARRAY(char, 1024);
if (!pwstr) {
return false;
}
if (pwHistLen == 0) {
/* Remove any password history from the LDAP store. */
memset(pwstr, '0', 64); /* NOTE !!!! '0' *NOT '\0' */
pwstr[64] = '\0';
} else {
int i;
uint32_t currHistLen = 0;
const uint8_t *pwhist = pdb_get_pw_history(sampass, &currHistLen);
if (pwhist != NULL) {
/* We can only store (1024-1/64 password history entries. */
pwHistLen = MIN(pwHistLen, ((1024-1)/64));
for (i=0; i< pwHistLen && i < currHistLen; i++) {
/* Store the salt. */
pdb_sethexpwd(&pwstr[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN], 0);
/* Followed by the md5 hash of salt + md4 hash */
pdb_sethexpwd(&pwstr[(i*64)+32],
&pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN], 0);
DEBUG(100, ("pwstr=%s\n", pwstr));
}
}
}
smbldap_make_mod(
smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
pwstr);
SAFE_FREE(pwstr);
}
if (need_update(sampass, PDB_PASSLASTSET)) {
if (asprintf(&temp, "%li",
(long int)pdb_get_pass_last_set_time(sampass)) < 0) {
return false;
}
smbldap_make_mod(
smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET),
temp);
SAFE_FREE(temp);
}
}
if (need_update(sampass, PDB_HOURS)) {
const uint8_t *hours = pdb_get_hours(sampass);
if (hours) {
char hourstr[44];
pdb_sethexhours(hourstr, hours);
smbldap_make_mod(
smbldap_get_ldap(ldap_state->smbldap_state),
existing,
mods,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_LOGON_HOURS),
hourstr);
}
}
if (need_update(sampass, PDB_ACCTCTRL))
smbldap_make_mod(
smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO),
pdb_encode_acct_ctrl (pdb_get_acct_ctrl(sampass), NEW_PW_FORMAT_SPACE_PADDED_LEN));
/* password lockout cache:
- If we are now autolocking or clearing, we write to ldap
- If we are clearing, we delete the cache entry
- If the count is > 0, we update the cache
This even means when autolocking, we cache, just in case the
update doesn't work, and we have to cache the autolock flag */
if (need_update(sampass, PDB_BAD_PASSWORD_COUNT)) /* &&
need_update(sampass, PDB_BAD_PASSWORD_TIME)) */ {
uint16_t badcount = pdb_get_bad_password_count(sampass);
time_t badtime = pdb_get_bad_password_time(sampass);
uint32_t pol;
pdb_get_account_policy(PDB_POLICY_BAD_ATTEMPT_LOCKOUT, &pol);
DEBUG(3, ("updating bad password fields, policy=%u, count=%u, time=%u\n",
(unsigned int)pol, (unsigned int)badcount, (unsigned int)badtime));
if ((badcount >= pol) || (badcount == 0)) {
DEBUG(7, ("making mods to update ldap, count=%u, time=%u\n",
(unsigned int)badcount, (unsigned int)badtime));
if (asprintf(&temp, "%li", (long)badcount) < 0) {
return false;
}
smbldap_make_mod(
smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(
ldap_state->schema_ver,
LDAP_ATTR_BAD_PASSWORD_COUNT),
temp);
SAFE_FREE(temp);
if (asprintf(&temp, "%li", (long int)badtime) < 0) {
return false;
}
smbldap_make_mod(
smbldap_get_ldap(ldap_state->smbldap_state),
existing, mods,
get_userattr_key2string(
ldap_state->schema_ver,
LDAP_ATTR_BAD_PASSWORD_TIME),
temp);
SAFE_FREE(temp);
}
if (badcount == 0) {
DEBUG(7, ("bad password count is reset, deleting login cache entry for %s\n", pdb_get_nt_username(sampass)));
login_cache_delentry(sampass);
} else {
struct login_cache cache_entry;
cache_entry.entry_timestamp = time(NULL);
cache_entry.acct_ctrl = pdb_get_acct_ctrl(sampass);
cache_entry.bad_password_count = badcount;
cache_entry.bad_password_time = badtime;
DEBUG(7, ("Updating bad password count and time in login cache\n"));
login_cache_write(sampass, &cache_entry);
}
}
return True;
}
/**********************************************************************
End enumeration of the LDAP password list.
*********************************************************************/
static void ldapsam_endsampwent(struct pdb_methods *my_methods)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
if (ldap_state->result) {
ldap_msgfree(ldap_state->result);
ldap_state->result = NULL;
}
}
static void append_attr(TALLOC_CTX *mem_ctx, const char ***attr_list,
const char *new_attr)
{
int i;
if (new_attr == NULL) {
return;
}
for (i=0; (*attr_list)[i] != NULL; i++) {
;
}
(*attr_list) = talloc_realloc(mem_ctx, (*attr_list),
const char *, i+2);
SMB_ASSERT((*attr_list) != NULL);
(*attr_list)[i] = talloc_strdup((*attr_list), new_attr);
(*attr_list)[i+1] = NULL;
}
static void ldapsam_add_unix_attributes(TALLOC_CTX *mem_ctx,
const char ***attr_list)
{
append_attr(mem_ctx, attr_list, "uidNumber");
append_attr(mem_ctx, attr_list, "gidNumber");
append_attr(mem_ctx, attr_list, "homeDirectory");
append_attr(mem_ctx, attr_list, "loginShell");
append_attr(mem_ctx, attr_list, "gecos");
}
/**********************************************************************
Get struct samu entry from LDAP by username.
*********************************************************************/
static NTSTATUS ldapsam_getsampwnam(struct pdb_methods *my_methods, struct samu *user, const char *sname)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
int count;
const char ** attr_list;
int rc;
attr_list = get_userattr_list( user, ldap_state->schema_ver );
append_attr(user, &attr_list,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_MOD_TIMESTAMP));
ldapsam_add_unix_attributes(user, &attr_list);
rc = ldapsam_search_suffix_by_name(ldap_state, sname, &result,
attr_list);
TALLOC_FREE( attr_list );
if ( rc != LDAP_SUCCESS )
return NT_STATUS_NO_SUCH_USER;
count = ldap_count_entries(smbldap_get_ldap(ldap_state->smbldap_state),
result);
if (count < 1) {
DEBUG(4, ("ldapsam_getsampwnam: Unable to locate user [%s] count=%d\n", sname, count));
ldap_msgfree(result);
return NT_STATUS_NO_SUCH_USER;
} else if (count > 1) {
DEBUG(1, ("ldapsam_getsampwnam: Duplicate entries for this user [%s] Failing. count=%d\n", sname, count));
ldap_msgfree(result);
return NT_STATUS_NO_SUCH_USER;
}
entry = ldap_first_entry(smbldap_get_ldap(ldap_state->smbldap_state),
result);
if (entry) {
if (!init_sam_from_ldap(ldap_state, user, entry)) {
DEBUG(1,("ldapsam_getsampwnam: init_sam_from_ldap failed for user '%s'!\n", sname));
ldap_msgfree(result);
return NT_STATUS_NO_SUCH_USER;
}
pdb_set_backend_private_data(user, result, NULL,
my_methods, PDB_CHANGED);
smbldap_talloc_autofree_ldapmsg(user, result);
ret = NT_STATUS_OK;
} else {
ldap_msgfree(result);
}
return ret;
}
static int ldapsam_get_ldap_user_by_sid(struct ldapsam_privates *ldap_state,
const struct dom_sid *sid, LDAPMessage **result)
{
int rc = -1;
const char ** attr_list;
switch ( ldap_state->schema_ver ) {
case SCHEMAVER_SAMBASAMACCOUNT: {
TALLOC_CTX *tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
return LDAP_NO_MEMORY;
}
attr_list = get_userattr_list(tmp_ctx,
ldap_state->schema_ver);
append_attr(tmp_ctx, &attr_list,
get_userattr_key2string(
ldap_state->schema_ver,
LDAP_ATTR_MOD_TIMESTAMP));
ldapsam_add_unix_attributes(tmp_ctx, &attr_list);
rc = ldapsam_search_suffix_by_sid(ldap_state, sid,
result, attr_list);
TALLOC_FREE(tmp_ctx);
if ( rc != LDAP_SUCCESS )
return rc;
break;
}
default:
DEBUG(0,("Invalid schema version specified\n"));
break;
}
return rc;
}
/**********************************************************************
Get struct samu entry from LDAP by SID.
*********************************************************************/
static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
int count;
int rc;
rc = ldapsam_get_ldap_user_by_sid(ldap_state,
sid, &result);
if (rc != LDAP_SUCCESS)
return NT_STATUS_NO_SUCH_USER;
count = ldap_count_entries(smbldap_get_ldap(ldap_state->smbldap_state),
result);
if (count < 1) {
struct dom_sid_buf buf;
DEBUG(4, ("ldapsam_getsampwsid: Unable to locate SID [%s] "
"count=%d\n",
dom_sid_str_buf(sid, &buf),
count));
ldap_msgfree(result);
return NT_STATUS_NO_SUCH_USER;
} else if (count > 1) {
struct dom_sid_buf buf;
DEBUG(1, ("ldapsam_getsampwsid: More than one user with SID "
"[%s]. Failing. count=%d\n",
dom_sid_str_buf(sid, &buf),
count));
ldap_msgfree(result);
return NT_STATUS_NO_SUCH_USER;
}
entry = ldap_first_entry(smbldap_get_ldap(ldap_state->smbldap_state),
result);
if (!entry) {
ldap_msgfree(result);
return NT_STATUS_NO_SUCH_USER;
}
if (!init_sam_from_ldap(ldap_state, user, entry)) {
DEBUG(1,("ldapsam_getsampwsid: init_sam_from_ldap failed!\n"));
ldap_msgfree(result);
return NT_STATUS_NO_SUCH_USER;
}
pdb_set_backend_private_data(user, result, NULL,
my_methods, PDB_CHANGED);
smbldap_talloc_autofree_ldapmsg(user, result);
return NT_STATUS_OK;
}
/********************************************************************
Do the actual modification - also change a plaintext password if
it it set.
**********************************************************************/
static NTSTATUS ldapsam_modify_entry(struct pdb_methods *my_methods,
struct samu *newpwd, char *dn,
LDAPMod **mods, int ldap_op,
bool (*need_update)(const struct samu *, enum pdb_elements))
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
int rc;
if (!newpwd || !dn) {
return NT_STATUS_INVALID_PARAMETER;
}
if (!(pdb_get_acct_ctrl(newpwd)&(ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) &&
(lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_OFF) &&
need_update(newpwd, PDB_PLAINTEXT_PW) &&
(pdb_get_plaintext_passwd(newpwd)!=NULL)) {
BerElement *ber;
struct berval *bv;
char *retoid = NULL;
struct berval *retdata = NULL;
char *utf8_password;
char *utf8_dn;
size_t converted_size;
int ret;
if (!ldap_state->is_nds_ldap) {
if (!smbldap_has_extension(
smbldap_get_ldap(
ldap_state->smbldap_state),
LDAP_EXOP_MODIFY_PASSWD)) {
DEBUG(2, ("ldap password change requested, but LDAP "
"server does not support it -- ignoring\n"));
return NT_STATUS_OK;
}
}
if (!push_utf8_talloc(talloc_tos(), &utf8_password,
pdb_get_plaintext_passwd(newpwd),
&converted_size))
{
return NT_STATUS_NO_MEMORY;
}
if (!push_utf8_talloc(talloc_tos(), &utf8_dn, dn, &converted_size)) {
TALLOC_FREE(utf8_password);
return NT_STATUS_NO_MEMORY;
}
if ((ber = ber_alloc_t(LBER_USE_DER))==NULL) {
DEBUG(0,("ber_alloc_t returns NULL\n"));
TALLOC_FREE(utf8_password);
TALLOC_FREE(utf8_dn);
return NT_STATUS_UNSUCCESSFUL;
}
if ((ber_printf (ber, "{") < 0) ||
(ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID,
utf8_dn) < 0)) {
DEBUG(0,("ldapsam_modify_entry: ber_printf returns a "
"value <0\n"));
ber_free(ber,1);
TALLOC_FREE(utf8_dn);
TALLOC_FREE(utf8_password);
return NT_STATUS_UNSUCCESSFUL;
}
if ((utf8_password != NULL) && (*utf8_password != '\0')) {
ret = ber_printf(ber, "ts}",
LDAP_TAG_EXOP_MODIFY_PASSWD_NEW,
utf8_password);
} else {
ret = ber_printf(ber, "}");
}
if (ret < 0) {
DEBUG(0,("ldapsam_modify_entry: ber_printf returns a "
"value <0\n"));
ber_free(ber,1);
TALLOC_FREE(utf8_dn);
TALLOC_FREE(utf8_password);
return NT_STATUS_UNSUCCESSFUL;
}
if ((rc = ber_flatten (ber, &bv))<0) {
DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
ber_free(ber,1);
TALLOC_FREE(utf8_dn);
TALLOC_FREE(utf8_password);
return NT_STATUS_UNSUCCESSFUL;
}
TALLOC_FREE(utf8_dn);
TALLOC_FREE(utf8_password);
ber_free(ber, 1);
if (!ldap_state->is_nds_ldap) {
rc = smbldap_extended_operation(ldap_state->smbldap_state,
LDAP_EXOP_MODIFY_PASSWD,
bv, NULL, NULL, &retoid,
&retdata);
} else {
rc = pdb_nds_set_password(ldap_state->smbldap_state, dn,
pdb_get_plaintext_passwd(newpwd));
}
if (rc != LDAP_SUCCESS) {
char *ld_error = NULL;
if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
DEBUG(3, ("Could not set userPassword "
"attribute due to an objectClass "
"violation -- ignoring\n"));
ber_bvfree(bv);
return NT_STATUS_OK;
}
ldap_get_option(
smbldap_get_ldap(ldap_state->smbldap_state),
LDAP_OPT_ERROR_STRING,
&ld_error);
DEBUG(0,("ldapsam_modify_entry: LDAP Password could not be changed for user %s: %s\n\t%s\n",
pdb_get_username(newpwd), ldap_err2string(rc), ld_error?ld_error:"unknown"));
SAFE_FREE(ld_error);
ber_bvfree(bv);
#if defined(LDAP_CONSTRAINT_VIOLATION)
if (rc == LDAP_CONSTRAINT_VIOLATION)
return NT_STATUS_PASSWORD_RESTRICTION;
#endif
return NT_STATUS_UNSUCCESSFUL;
} else {
DEBUG(3,("ldapsam_modify_entry: LDAP Password changed for user %s\n",pdb_get_username(newpwd)));
#ifdef DEBUG_PASSWORD
DEBUG(100,("ldapsam_modify_entry: LDAP Password changed to %s\n",pdb_get_plaintext_passwd(newpwd)));
#endif
if (retdata)
ber_bvfree(retdata);
if (retoid)
ldap_memfree(retoid);
}
ber_bvfree(bv);
}
if (!mods) {
DEBUG(5,("ldapsam_modify_entry: mods is empty: nothing to modify\n"));
/* may be password change below however */
} else {
switch(ldap_op) {
case LDAP_MOD_ADD:
if (ldap_state->is_nds_ldap) {
smbldap_set_mod(&mods, LDAP_MOD_ADD,
"objectclass",
"inetOrgPerson");
} else {
smbldap_set_mod(&mods, LDAP_MOD_ADD,
"objectclass",
LDAP_OBJ_ACCOUNT);
}
rc = smbldap_add(ldap_state->smbldap_state,
dn, mods);
break;
case LDAP_MOD_REPLACE:
rc = smbldap_modify(ldap_state->smbldap_state,
dn ,mods);
break;
default:
DEBUG(0,("ldapsam_modify_entry: Wrong LDAP operation type: %d!\n",
ldap_op));
return NT_STATUS_INVALID_PARAMETER;
}
if (rc!=LDAP_SUCCESS) {
return NT_STATUS_UNSUCCESSFUL;
}
}
return NT_STATUS_OK;
}
/**********************************************************************
Delete entry from LDAP for username.
*********************************************************************/
static NTSTATUS ldapsam_delete_sam_account(struct pdb_methods *my_methods,
struct samu * sam_acct)
{
struct ldapsam_privates *priv =
(struct ldapsam_privates *)my_methods->private_data;
const char *sname;
int rc;
LDAPMessage *msg, *entry;
NTSTATUS result = NT_STATUS_NO_MEMORY;
const char **attr_list;
TALLOC_CTX *mem_ctx;
if (!sam_acct) {
DEBUG(0, ("ldapsam_delete_sam_account: sam_acct was NULL!\n"));
return NT_STATUS_INVALID_PARAMETER;
}
sname = pdb_get_username(sam_acct);
DEBUG(3, ("ldapsam_delete_sam_account: Deleting user %s from "
"LDAP.\n", sname));
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
DEBUG(0, ("talloc_new failed\n"));
goto done;
}
attr_list = get_userattr_delete_list(mem_ctx, priv->schema_ver );
if (attr_list == NULL) {
goto done;
}
rc = ldapsam_search_suffix_by_name(priv, sname, &msg, attr_list);
if ((rc != LDAP_SUCCESS) ||
(ldap_count_entries(priv2ld(priv), msg) != 1) ||
((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
DEBUG(5, ("Could not find user %s\n", sname));
result = NT_STATUS_NO_SUCH_USER;
goto done;
}
rc = ldapsam_delete_entry(
priv, mem_ctx, entry,
priv->schema_ver == SCHEMAVER_SAMBASAMACCOUNT ?
LDAP_OBJ_SAMBASAMACCOUNT : 0,
attr_list);
result = (rc == LDAP_SUCCESS) ?
NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
done:
TALLOC_FREE(mem_ctx);
return result;
}
/**********************************************************************
Update struct samu.
*********************************************************************/
static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
{
NTSTATUS ret;
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
int rc = 0;
char *dn;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
LDAPMod **mods = NULL;
const char **attr_list;
result = (LDAPMessage *)pdb_get_backend_private_data(newpwd, my_methods);
if (!result) {
attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
if (pdb_get_username(newpwd) == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
rc = ldapsam_search_suffix_by_name(ldap_state, pdb_get_username(newpwd), &result, attr_list );
TALLOC_FREE( attr_list );
if (rc != LDAP_SUCCESS) {
return NT_STATUS_UNSUCCESSFUL;
}
pdb_set_backend_private_data(newpwd, result, NULL,
my_methods, PDB_CHANGED);
smbldap_talloc_autofree_ldapmsg(newpwd, result);
}
if (ldap_count_entries(smbldap_get_ldap(ldap_state->smbldap_state),
result) == 0) {
DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
entry = ldap_first_entry(smbldap_get_ldap(ldap_state->smbldap_state),
result);
dn = smbldap_talloc_dn(talloc_tos(),
smbldap_get_ldap(ldap_state->smbldap_state),
entry);
if (!dn) {
return NT_STATUS_UNSUCCESSFUL;
}
DEBUG(4, ("ldapsam_update_sam_account: user %s to be modified has dn: %s\n", pdb_get_username(newpwd), dn));
if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
pdb_element_is_changed)) {
DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
TALLOC_FREE(dn);
if (mods != NULL)
ldap_mods_free(mods,True);
return NT_STATUS_UNSUCCESSFUL;
}
if ((lp_ldap_passwd_sync() != LDAP_PASSWD_SYNC_ONLY)
&& (mods == NULL)) {
DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
pdb_get_username(newpwd)));
TALLOC_FREE(dn);
return NT_STATUS_OK;
}
ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, pdb_element_is_changed);
if (mods != NULL) {
ldap_mods_free(mods,True);
}
TALLOC_FREE(dn);
/*
* We need to set the backend private data to NULL here. For example
* setuserinfo level 25 does a pdb_update_sam_account twice on the
* same one, and with the explicit delete / add logic for attribute
* values the second time we would use the wrong "old" value which
* does not exist in LDAP anymore. Thus the LDAP server would refuse
* the update.
* The existing LDAPMessage is still being auto-freed by the
* destructor.
*/
pdb_set_backend_private_data(newpwd, NULL, NULL, my_methods,
PDB_CHANGED);
if (!NT_STATUS_IS_OK(ret)) {
return ret;
}
DEBUG(2, ("ldapsam_update_sam_account: successfully modified uid = %s in the LDAP database\n",
pdb_get_username(newpwd)));
return NT_STATUS_OK;
}
/***************************************************************************
Renames a struct samu
- The "rename user script" has full responsibility for changing everything
***************************************************************************/
static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
TALLOC_CTX *tmp_ctx,
uint32_t group_rid,
uint32_t member_rid);
static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
TALLOC_CTX *mem_ctx,
struct samu *user,
struct dom_sid **pp_sids,
gid_t **pp_gids,
uint32_t *p_num_groups);
static NTSTATUS ldapsam_rename_sam_account(struct pdb_methods *my_methods,
struct samu *old_acct,
const char *newname)
{
const struct loadparm_substitution *lp_sub =
loadparm_s3_global_substitution();
const char *oldname;
int rc;
char *rename_script = NULL;
fstring oldname_lower, newname_lower;
if (!old_acct) {
DEBUG(0, ("ldapsam_rename_sam_account: old_acct was NULL!\n"));
return NT_STATUS_INVALID_PARAMETER;
}
if (!newname) {
DEBUG(0, ("ldapsam_rename_sam_account: newname was NULL!\n"));
return NT_STATUS_INVALID_PARAMETER;
}
oldname = pdb_get_username(old_acct);
/* rename the posix user */
rename_script = lp_rename_user_script(talloc_tos(), lp_sub);
if (rename_script == NULL) {
return NT_STATUS_NO_MEMORY;
}
if (!(*rename_script)) {
TALLOC_FREE(rename_script);
return NT_STATUS_ACCESS_DENIED;
}
DEBUG (3, ("ldapsam_rename_sam_account: Renaming user %s to %s.\n",
oldname, newname));
/* We have to allow the account name to end with a '$'.
Also, follow the semantics in _samr_create_user() and lower case the
posix name but preserve the case in passdb */
fstrcpy( oldname_lower, oldname );
if (!strlower_m( oldname_lower )) {
return NT_STATUS_INVALID_PARAMETER;
}
fstrcpy( newname_lower, newname );
if (!strlower_m( newname_lower )) {
return NT_STATUS_INVALID_PARAMETER;
}
rename_script = realloc_string_sub2(rename_script,
"%unew",
newname_lower,
true,
true);
if (!rename_script) {
return NT_STATUS_NO_MEMORY;
}
rename_script = realloc_string_sub2(rename_script,
"%uold",
oldname_lower,
true,
true);
rc = smbrun(rename_script, NULL, NULL);
DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
rename_script, rc));
TALLOC_FREE(rename_script);
if (rc == 0) {
smb_nscd_flush_user_cache();
}
if (rc)
return NT_STATUS_UNSUCCESSFUL;
return NT_STATUS_OK;
}
/**********************************************************************
Add struct samu to LDAP.
*********************************************************************/
static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
int rc;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
LDAPMod **mods = NULL;
int ldap_op = LDAP_MOD_REPLACE;
uint32_t num_result;
const char **attr_list;
char *escape_user = NULL;
const char *username = pdb_get_username(newpwd);
const struct dom_sid *sid = pdb_get_user_sid(newpwd);
char *filter = NULL;
char *dn = NULL;
NTSTATUS status = NT_STATUS_UNSUCCESSFUL;
TALLOC_CTX *ctx = talloc_init("ldapsam_add_sam_account");
if (!ctx) {
return NT_STATUS_NO_MEMORY;
}
if (!username || !*username) {
DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
status = NT_STATUS_INVALID_PARAMETER;
goto fn_exit;
}
/* free this list after the second search or in case we exit on failure */
attr_list = get_userattr_list(ctx, ldap_state->schema_ver);
rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
if (rc != LDAP_SUCCESS) {
goto fn_exit;
}
if (ldap_count_entries(smbldap_get_ldap(ldap_state->smbldap_state),
result) != 0) {
DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
username));
goto fn_exit;
}
ldap_msgfree(result);
result = NULL;
if (pdb_element_is_set_or_changed(newpwd, PDB_USERSID)) {
rc = ldapsam_get_ldap_user_by_sid(ldap_state,
sid, &result);
if (rc == LDAP_SUCCESS) {
if (ldap_count_entries(
smbldap_get_ldap(
ldap_state->smbldap_state),
result) != 0) {
struct dom_sid_buf buf;
DEBUG(0,("ldapsam_add_sam_account: SID '%s' "
"already in the base, with samba "
"attributes\n",
dom_sid_str_buf(sid, &buf)));
goto fn_exit;
}
ldap_msgfree(result);
result = NULL;
}
}
/* does the entry already exist but without a samba attributes?
we need to return the samba attributes here */
escape_user = escape_ldap_string(talloc_tos(), username);
filter = talloc_strdup(attr_list, "(uid=%u)");
if (!filter) {
status = NT_STATUS_NO_MEMORY;
goto fn_exit;
}
filter = talloc_all_string_sub(attr_list, filter, "%u", escape_user);
TALLOC_FREE(escape_user);
if (!filter) {
status = NT_STATUS_NO_MEMORY;
goto fn_exit;
}
rc = smbldap_search_suffix(ldap_state->smbldap_state,
filter, attr_list, &result);
if ( rc != LDAP_SUCCESS ) {
goto fn_exit;
}
num_result = ldap_count_entries(
smbldap_get_ldap(ldap_state->smbldap_state), result);
if (num_result > 1) {
DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
goto fn_exit;
}
/* Check if we need to update an existing entry */
if (num_result == 1) {
DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
ldap_op = LDAP_MOD_REPLACE;
entry = ldap_first_entry(
smbldap_get_ldap(ldap_state->smbldap_state), result);
dn = smbldap_talloc_dn(
ctx, smbldap_get_ldap(ldap_state->smbldap_state),
entry);
if (!dn) {
status = NT_STATUS_NO_MEMORY;
goto fn_exit;
}
} else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
struct dom_sid_buf buf;
/* There might be a SID for this account already - say an idmap entry */
filter = talloc_asprintf(ctx,
"(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_USER_SID),
dom_sid_str_buf(sid, &buf),
LDAP_OBJ_IDMAP_ENTRY,
LDAP_OBJ_SID_ENTRY);
if (!filter) {
status = NT_STATUS_NO_MEMORY;
goto fn_exit;
}
/* free old result before doing a new search */
if (result != NULL) {
ldap_msgfree(result);
result = NULL;
}
rc = smbldap_search_suffix(ldap_state->smbldap_state,
filter, attr_list, &result);
if ( rc != LDAP_SUCCESS ) {
goto fn_exit;
}
num_result = ldap_count_entries(
smbldap_get_ldap(ldap_state->smbldap_state), result);
if (num_result > 1) {
DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
goto fn_exit;
}
/* Check if we need to update an existing entry */
if (num_result == 1) {
DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
ldap_op = LDAP_MOD_REPLACE;
entry = ldap_first_entry (
smbldap_get_ldap(ldap_state->smbldap_state),
result);
dn = smbldap_talloc_dn (
ctx,
smbldap_get_ldap(ldap_state->smbldap_state),
entry);
if (!dn) {
status = NT_STATUS_NO_MEMORY;
goto fn_exit;
}
}
}
if (num_result == 0) {
char *escape_username;
/* Check if we need to add an entry */
DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
ldap_op = LDAP_MOD_ADD;
escape_username = escape_rdn_val_string_alloc(username);
if (!escape_username) {
status = NT_STATUS_NO_MEMORY;
goto fn_exit;
}
if (username[strlen(username)-1] == '$') {
dn = talloc_asprintf(ctx,
"uid=%s,%s",
escape_username,
lp_ldap_machine_suffix(talloc_tos()));
} else {
dn = talloc_asprintf(ctx,
"uid=%s,%s",
escape_username,
lp_ldap_user_suffix(talloc_tos()));
}
SAFE_FREE(escape_username);
if (!dn) {
status = NT_STATUS_NO_MEMORY;
goto fn_exit;
}
}
if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
pdb_element_is_set_or_changed)) {
DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
if (mods != NULL) {
ldap_mods_free(mods, true);
}
goto fn_exit;
}
if (mods == NULL) {
DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
goto fn_exit;
}
switch ( ldap_state->schema_ver ) {
case SCHEMAVER_SAMBASAMACCOUNT:
smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBASAMACCOUNT);
break;
default:
DEBUG(0,("ldapsam_add_sam_account: invalid schema version specified\n"));
break;
}
status = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, pdb_element_is_set_or_changed);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0,("ldapsam_add_sam_account: failed to modify/add user with uid = %s (dn = %s)\n",
pdb_get_username(newpwd),dn));
ldap_mods_free(mods, true);
goto fn_exit;
}
DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
ldap_mods_free(mods, true);
status = NT_STATUS_OK;
fn_exit:
TALLOC_FREE(ctx);
if (result) {
ldap_msgfree(result);
}
return status;
}
/**********************************************************************
*********************************************************************/
static int ldapsam_search_one_group (struct ldapsam_privates *ldap_state,
const char *filter,
LDAPMessage ** result)
{
int scope = LDAP_SCOPE_SUBTREE;
int rc;
const char **attr_list;
attr_list = get_attr_list(NULL, groupmap_attr_list);
rc = smbldap_search(ldap_state->smbldap_state,
lp_ldap_suffix(), scope,
filter, attr_list, 0, result);
TALLOC_FREE(attr_list);
return rc;
}
/**********************************************************************
*********************************************************************/
static bool init_group_from_ldap(struct ldapsam_privates *ldap_state,
GROUP_MAP *map, LDAPMessage *entry)
{
char *temp = NULL;
TALLOC_CTX *ctx = talloc_init("init_group_from_ldap");
if (ldap_state == NULL || map == NULL || entry == NULL ||
smbldap_get_ldap(ldap_state->smbldap_state) == NULL) {
DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
TALLOC_FREE(ctx);
return false;
}
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_attr_key2string(groupmap_attr_list,
LDAP_ATTR_GIDNUMBER),
ctx);
if (!temp) {
DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
TALLOC_FREE(ctx);
return false;
}
DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
map->gid = (gid_t)atol(temp);
TALLOC_FREE(temp);
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_attr_key2string(groupmap_attr_list,
LDAP_ATTR_GROUP_SID),
ctx);
if (!temp) {
DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
TALLOC_FREE(ctx);
return false;
}
if (!string_to_sid(&map->sid, temp)) {
DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
TALLOC_FREE(ctx);
return false;
}
TALLOC_FREE(temp);
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_attr_key2string(groupmap_attr_list,
LDAP_ATTR_GROUP_TYPE),
ctx);
if (!temp) {
DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
TALLOC_FREE(ctx);
return false;
}
map->sid_name_use = (enum lsa_SidType)atol(temp);
if ((map->sid_name_use < SID_NAME_USER) ||
(map->sid_name_use > SID_NAME_UNKNOWN)) {
DEBUG(0, ("init_group_from_ldap: Unknown Group type: %d\n", map->sid_name_use));
TALLOC_FREE(ctx);
return false;
}
TALLOC_FREE(temp);
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_attr_key2string(groupmap_attr_list,
LDAP_ATTR_DISPLAY_NAME),
ctx);
if (!temp) {
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_attr_key2string(groupmap_attr_list,
LDAP_ATTR_CN),
ctx);
if (!temp) {
DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
for gidNumber(%lu)\n",(unsigned long)map->gid));
TALLOC_FREE(ctx);
return false;
}
}
map->nt_name = talloc_strdup(map, temp);
if (!map->nt_name) {
TALLOC_FREE(ctx);
return false;
}
TALLOC_FREE(temp);
temp = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_attr_key2string(groupmap_attr_list,
LDAP_ATTR_DESC),
ctx);
if (!temp) {
temp = talloc_strdup(ctx, "");
if (!temp) {
TALLOC_FREE(ctx);
return false;
}
}
map->comment = talloc_strdup(map, temp);
if (!map->comment) {
TALLOC_FREE(ctx);
return false;
}
if (lp_parm_bool(-1, "ldapsam", "trusted", false)) {
struct unixid id;
id.id = map->gid;
id.type = ID_TYPE_GID;
idmap_cache_set_sid2unixid(&map->sid, &id);
}
TALLOC_FREE(ctx);
return true;
}
/**********************************************************************
*********************************************************************/
static NTSTATUS ldapsam_getgroup(struct pdb_methods *methods,
const char *filter,
GROUP_MAP *map)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
int count;
if (ldapsam_search_one_group(ldap_state, filter, &result)
!= LDAP_SUCCESS) {
return NT_STATUS_NO_SUCH_GROUP;
}
count = ldap_count_entries(priv2ld(ldap_state), result);
if (count < 1) {
DEBUG(4, ("ldapsam_getgroup: Did not find group, filter was "
"%s\n", filter));
ldap_msgfree(result);
return NT_STATUS_NO_SUCH_GROUP;
}
if (count > 1) {
DEBUG(1, ("ldapsam_getgroup: Duplicate entries for filter %s: "
"count=%d\n", filter, count));
ldap_msgfree(result);
return NT_STATUS_NO_SUCH_GROUP;
}
entry = ldap_first_entry(priv2ld(ldap_state), result);
if (!entry) {
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
if (!init_group_from_ldap(ldap_state, map, entry)) {
DEBUG(1, ("ldapsam_getgroup: init_group_from_ldap failed for "
"group filter %s\n", filter));
ldap_msgfree(result);
return NT_STATUS_NO_SUCH_GROUP;
}
ldap_msgfree(result);
return NT_STATUS_OK;
}
/**********************************************************************
*********************************************************************/
static NTSTATUS ldapsam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map,
struct dom_sid sid)
{
char *filter = NULL;
NTSTATUS status;
struct dom_sid_buf tmp;
if (asprintf(&filter, "(&(objectClass=%s)(%s=%s))",
LDAP_OBJ_GROUPMAP,
get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
dom_sid_str_buf(&sid, &tmp)) < 0) {
return NT_STATUS_NO_MEMORY;
}
status = ldapsam_getgroup(methods, filter, map);
SAFE_FREE(filter);
return status;
}
/**********************************************************************
*********************************************************************/
static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
gid_t gid)
{
char *filter = NULL;
NTSTATUS status;
if (asprintf(&filter, "(&(objectClass=%s)(%s=%lu))",
LDAP_OBJ_GROUPMAP,
get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
(unsigned long)gid) < 0) {
return NT_STATUS_NO_MEMORY;
}
status = ldapsam_getgroup(methods, filter, map);
SAFE_FREE(filter);
return status;
}
/**********************************************************************
*********************************************************************/
static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
const char *name)
{
char *filter = NULL;
char *escape_name = escape_ldap_string(talloc_tos(), name);
NTSTATUS status;
if (!escape_name) {
return NT_STATUS_NO_MEMORY;
}
if (asprintf(&filter, "(&(objectClass=%s)(|(%s=%s)(%s=%s)))",
LDAP_OBJ_GROUPMAP,
get_attr_key2string(groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), escape_name,
get_attr_key2string(groupmap_attr_list, LDAP_ATTR_CN),
escape_name) < 0) {
TALLOC_FREE(escape_name);
return NT_STATUS_NO_MEMORY;
}
TALLOC_FREE(escape_name);
status = ldapsam_getgroup(methods, filter, map);
SAFE_FREE(filter);
return status;
}
static bool ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
LDAPMessage *entry,
const struct dom_sid *domain_sid,
uint32_t *rid)
{
fstring str;
struct dom_sid sid;
if (!smbldap_get_single_attribute(ldap_struct, entry, "sambaSID",
str, sizeof(str)-1)) {
DEBUG(10, ("Could not find sambaSID attribute\n"));
return False;
}
if (!string_to_sid(&sid, str)) {
DEBUG(10, ("Could not convert string %s to sid\n", str));
return False;
}
if (dom_sid_compare_domain(&sid, domain_sid) != 0) {
struct dom_sid_buf buf;
DEBUG(10, ("SID %s is not in expected domain %s\n",
str,
dom_sid_str_buf(domain_sid, &buf)));
return False;
}
if (!sid_peek_rid(&sid, rid)) {
DEBUG(10, ("Could not peek into RID\n"));
return False;
}
return True;
}
static NTSTATUS ldapsam_enum_group_members(struct pdb_methods *methods,
TALLOC_CTX *mem_ctx,
const struct dom_sid *group,
uint32_t **pp_member_rids,
size_t *p_num_members)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
struct smbldap_state *conn = ldap_state->smbldap_state;
const char *id_attrs[] = { "memberUid", "gidNumber", NULL };
const char *sid_attrs[] = { "sambaSID", NULL };
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
LDAPMessage *result = NULL;
LDAPMessage *entry;
char *filter;
char **values = NULL;
char **memberuid;
char *gidstr;
int rc, count;
struct dom_sid_buf buf;
*pp_member_rids = NULL;
*p_num_members = 0;
filter = talloc_asprintf(mem_ctx,
"(&(objectClass="LDAP_OBJ_POSIXGROUP")"
"(objectClass="LDAP_OBJ_GROUPMAP")"
"(sambaSID=%s))",
dom_sid_str_buf(group, &buf));
if (filter == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
rc = smbldap_search(conn, lp_ldap_suffix(),
LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
&result);
if (rc != LDAP_SUCCESS)
goto done;
smbldap_talloc_autofree_ldapmsg(mem_ctx, result);
count = ldap_count_entries(smbldap_get_ldap(conn), result);
if (count > 1) {
DEBUG(1, ("Found more than one groupmap entry for %s\n",
dom_sid_str_buf(group, &buf)));
ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
goto done;
}
if (count == 0) {
ret = NT_STATUS_NO_SUCH_GROUP;
goto done;
}
entry = ldap_first_entry(smbldap_get_ldap(conn), result);
if (entry == NULL)
goto done;
gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
if (!gidstr) {
DEBUG (0, ("ldapsam_enum_group_members: Unable to find the group's gid!\n"));
ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
goto done;
}
values = ldap_get_values(smbldap_get_ldap(conn), entry, "memberUid");
if ((values != NULL) && (values[0] != NULL)) {
filter = talloc_strdup(mem_ctx, "(&(objectClass="LDAP_OBJ_SAMBASAMACCOUNT")(|");
for (memberuid = values; *memberuid != NULL; memberuid += 1) {
char *escape_memberuid;
escape_memberuid = escape_ldap_string(talloc_tos(),
*memberuid);
if (escape_memberuid == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
filter = talloc_asprintf_append_buffer(filter, "(uid=%s)", escape_memberuid);
TALLOC_FREE(escape_memberuid);
if (filter == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
}
filter = talloc_asprintf_append_buffer(filter, "))");
if (filter == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
rc = smbldap_search(conn, lp_ldap_suffix(),
LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
&result);
if (rc != LDAP_SUCCESS)
goto done;
count = ldap_count_entries(smbldap_get_ldap(conn), result);
DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
smbldap_talloc_autofree_ldapmsg(mem_ctx, result);
for (entry = ldap_first_entry(smbldap_get_ldap(conn), result);
entry != NULL;
entry = ldap_next_entry(smbldap_get_ldap(conn), entry))
{
char *sidstr;
struct dom_sid sid;
uint32_t rid;
sidstr = smbldap_talloc_single_attribute(
smbldap_get_ldap(conn), entry, "sambaSID",
mem_ctx);
if (!sidstr) {
DEBUG(0, ("Severe DB error, %s can't miss the sambaSID"
"attribute\n", LDAP_OBJ_SAMBASAMACCOUNT));
ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
goto done;
}
if (!string_to_sid(&sid, sidstr))
goto done;
if (!sid_check_is_in_our_sam(&sid)) {
DEBUG(0, ("Inconsistent SAM -- group member uid not "
"in our domain\n"));
ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
goto done;
}
sid_peek_rid(&sid, &rid);
if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
p_num_members)) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
}
}
filter = talloc_asprintf(mem_ctx,
"(&(objectClass=%s)"
"(gidNumber=%s))",
LDAP_OBJ_SAMBASAMACCOUNT,
gidstr);
rc = smbldap_search(conn, lp_ldap_suffix(),
LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
&result);
if (rc != LDAP_SUCCESS)
goto done;
smbldap_talloc_autofree_ldapmsg(mem_ctx, result);
for (entry = ldap_first_entry(smbldap_get_ldap(conn), result);
entry != NULL;
entry = ldap_next_entry(smbldap_get_ldap(conn), entry))
{
uint32_t rid;
if (!ldapsam_extract_rid_from_entry(smbldap_get_ldap(conn),
entry,
get_global_sam_sid(),
&rid)) {
DEBUG(0, ("Severe DB error, %s can't miss the samba SID" "attribute\n", LDAP_OBJ_SAMBASAMACCOUNT));
ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
goto done;
}
if (!add_rid_to_array_unique(mem_ctx, rid, pp_member_rids,
p_num_members)) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
}
ret = NT_STATUS_OK;
done:
if (values)
ldap_value_free(values);
return ret;
}
static NTSTATUS ldapsam_enum_group_memberships(struct pdb_methods *methods,
TALLOC_CTX *mem_ctx,
struct samu *user,
struct dom_sid **pp_sids,
gid_t **pp_gids,
uint32_t *p_num_groups)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
struct smbldap_state *conn = ldap_state->smbldap_state;
char *filter;
const char *attrs[] = { "gidNumber", "sambaSID", NULL };
char *escape_name;
int rc, count;
LDAPMessage *result = NULL;
LDAPMessage *entry;
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
uint32_t num_sids;
uint32_t num_gids;
char *gidstr;
gid_t primary_gid = -1;
int error = 0;
*pp_sids = NULL;
num_sids = 0;
if (pdb_get_username(user) == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
escape_name = escape_ldap_string(talloc_tos(), pdb_get_username(user));
if (escape_name == NULL)
return NT_STATUS_NO_MEMORY;
if (user->unix_pw) {
primary_gid = user->unix_pw->pw_gid;
} else {
/* retrieve the users primary gid */
filter = talloc_asprintf(mem_ctx,
"(&(objectClass="LDAP_OBJ_SAMBASAMACCOUNT")(uid=%s))",
escape_name);
if (filter == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
rc = smbldap_search(conn, lp_ldap_suffix(),
LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
if (rc != LDAP_SUCCESS)
goto done;
smbldap_talloc_autofree_ldapmsg(mem_ctx, result);
count = ldap_count_entries(priv2ld(ldap_state), result);
switch (count) {
case 0:
DEBUG(1, ("User account [%s] not found!\n", pdb_get_username(user)));
ret = NT_STATUS_NO_SUCH_USER;
goto done;
case 1:
entry = ldap_first_entry(priv2ld(ldap_state), result);
gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", mem_ctx);
if (!gidstr) {
DEBUG (1, ("Unable to find the member's gid!\n"));
ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
goto done;
}
primary_gid = smb_strtoul(gidstr,
NULL,
10,
&error,
SMB_STR_STANDARD);
if (error != 0) {
DBG_ERR("Failed to convert GID\n");
goto done;
}
break;
default:
DEBUG(1, ("found more than one account with the same user name ?!\n"));
ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
goto done;
}
}
filter = talloc_asprintf(mem_ctx,
"(&(objectClass="LDAP_OBJ_POSIXGROUP")(|(memberUid=%s)(gidNumber=%u)))",
escape_name, (unsigned int)primary_gid);
if (filter == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
rc = smbldap_search(conn, lp_ldap_suffix(),
LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
if (rc != LDAP_SUCCESS)
goto done;
smbldap_talloc_autofree_ldapmsg(mem_ctx, result);
num_gids = 0;
*pp_gids = NULL;
num_sids = 0;
*pp_sids = NULL;
/* We need to add the primary group as the first gid/sid */
if (!add_gid_to_array_unique(mem_ctx, primary_gid, pp_gids, &num_gids)) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
/* This sid will be replaced later */
ret = add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids,
&num_sids);
if (!NT_STATUS_IS_OK(ret)) {
goto done;
}
for (entry = ldap_first_entry(smbldap_get_ldap(conn), result);
entry != NULL;
entry = ldap_next_entry(smbldap_get_ldap(conn), entry))
{
fstring str;
struct dom_sid sid;
gid_t gid;
if (!smbldap_get_single_attribute(smbldap_get_ldap(conn),
entry, "sambaSID",
str, sizeof(str)-1))
continue;
if (!string_to_sid(&sid, str))
goto done;
if (!smbldap_get_single_attribute(smbldap_get_ldap(conn),
entry, "gidNumber",
str, sizeof(str)-1))
continue;
gid = smb_strtoul(str, NULL, 10, &error, SMB_STR_FULL_STR_CONV);
if (error != 0) {
goto done;
}
if (gid == primary_gid) {
sid_copy(&(*pp_sids)[0], &sid);
} else {
if (!add_gid_to_array_unique(mem_ctx, gid, pp_gids,
&num_gids)) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
ret = add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
&num_sids);
if (!NT_STATUS_IS_OK(ret)) {
goto done;
}
}
}
if (dom_sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
DEBUG(3, ("primary group of [%s] not found\n",
pdb_get_username(user)));
ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
goto done;
}
*p_num_groups = num_sids;
ret = NT_STATUS_OK;
done:
TALLOC_FREE(escape_name);
return ret;
}
/**********************************************************************
* Augment a posixGroup object with a sambaGroupMapping domgroup
*********************************************************************/
static NTSTATUS ldapsam_map_posixgroup(TALLOC_CTX *mem_ctx,
struct ldapsam_privates *ldap_state,
GROUP_MAP *map)
{
const char *filter, *dn;
LDAPMessage *msg, *entry;
LDAPMod **mods;
struct dom_sid_buf buf;
int rc;
filter = talloc_asprintf(mem_ctx,
"(&(objectClass="LDAP_OBJ_POSIXGROUP")(gidNumber=%u))",
(unsigned int)map->gid);
if (filter == NULL) {
return NT_STATUS_NO_MEMORY;
}
rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
get_attr_list(mem_ctx, groupmap_attr_list),
&msg);
smbldap_talloc_autofree_ldapmsg(mem_ctx, msg);
if ((rc != LDAP_SUCCESS) ||
(ldap_count_entries(smbldap_get_ldap(ldap_state->smbldap_state),
msg) != 1) ||
((entry = ldap_first_entry(
smbldap_get_ldap(ldap_state->smbldap_state),
msg)) == NULL)) {
return NT_STATUS_NO_SUCH_GROUP;
}
dn = smbldap_talloc_dn(mem_ctx,
smbldap_get_ldap(ldap_state->smbldap_state),
entry);
if (dn == NULL) {
return NT_STATUS_NO_MEMORY;
}
mods = NULL;
smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
LDAP_OBJ_GROUPMAP);
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), entry,
&mods, "sambaSid",
dom_sid_str_buf(&map->sid, &buf));
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), entry,
&mods, "sambaGroupType",
talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), entry,
&mods, "displayName",
map->nt_name);
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), entry,
&mods, "description",
map->comment);
smbldap_talloc_autofree_ldapmod(mem_ctx, mods);
rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
if (rc != LDAP_SUCCESS) {
return NT_STATUS_ACCESS_DENIED;
}
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_add_group_mapping_entry(struct pdb_methods *methods,
GROUP_MAP *map)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
LDAPMessage *msg = NULL;
LDAPMod **mods = NULL;
const char *attrs[] = { NULL };
char *filter;
char *dn;
TALLOC_CTX *mem_ctx;
NTSTATUS result;
struct dom_sid sid;
struct dom_sid_buf buf;
struct unixid id;
int rc;
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
DEBUG(0, ("talloc_new failed\n"));
return NT_STATUS_NO_MEMORY;
}
filter = talloc_asprintf(mem_ctx, "(sambaSid=%s)",
dom_sid_str_buf(&map->sid, &buf));
if (filter == NULL) {
result = NT_STATUS_NO_MEMORY;
goto done;
}
rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
LDAP_SCOPE_SUBTREE, filter, attrs, True, &msg);
smbldap_talloc_autofree_ldapmsg(mem_ctx, msg);
if ((rc == LDAP_SUCCESS) &&
(ldap_count_entries(smbldap_get_ldap(ldap_state->smbldap_state),
msg) > 0)) {
DEBUG(3, ("SID %s already present in LDAP, refusing to add "
"group mapping entry\n",
dom_sid_str_buf(&map->sid, &buf)));
result = NT_STATUS_GROUP_EXISTS;
goto done;
}
switch (map->sid_name_use) {
case SID_NAME_DOM_GRP:
/* To map a domain group we need to have a posix group
to attach to. */
result = ldapsam_map_posixgroup(mem_ctx, ldap_state, map);
goto done;
break;
case SID_NAME_ALIAS:
if (!sid_check_is_in_our_sam(&map->sid)
&& !sid_check_is_in_builtin(&map->sid) )
{
DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
dom_sid_str_buf(&map->sid, &buf)));
result = NT_STATUS_INVALID_PARAMETER;
goto done;
}
break;
default:
DEBUG(3, ("Got invalid use '%s' for mapping\n",
sid_type_lookup(map->sid_name_use)));
result = NT_STATUS_INVALID_PARAMETER;
goto done;
}
/* Domain groups have been mapped in a separate routine, we have to
* create an alias now */
if (map->gid == -1) {
DEBUG(10, ("Refusing to map gid==-1\n"));
result = NT_STATUS_INVALID_PARAMETER;
goto done;
}
id.id = map->gid;
id.type = ID_TYPE_GID;
if (pdb_id_to_sid(&id, &sid)) {
DEBUG(3, ("Gid %u is already mapped to SID %s, refusing to "
"add\n",
(unsigned int)map->gid,
dom_sid_str_buf(&sid, &buf)));
result = NT_STATUS_GROUP_EXISTS;
goto done;
}
/* Ok, enough checks done. It's still racy to go ahead now, but that's
* the best we can get out of LDAP. */
dn = talloc_asprintf(mem_ctx, "sambaSid=%s,%s",
dom_sid_str_buf(&map->sid, &buf),
lp_ldap_group_suffix(talloc_tos()));
if (dn == NULL) {
result = NT_STATUS_NO_MEMORY;
goto done;
}
mods = NULL;
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), NULL,
&mods, "objectClass", LDAP_OBJ_SID_ENTRY);
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), NULL,
&mods, "objectClass", LDAP_OBJ_GROUPMAP);
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), NULL,
&mods, "sambaSid",
dom_sid_str_buf(&map->sid, &buf));
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), NULL,
&mods, "sambaGroupType",
talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), NULL,
&mods, "displayName",
map->nt_name);
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), NULL,
&mods, "description",
map->comment);
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), NULL,
&mods, "gidNumber",
talloc_asprintf(mem_ctx, "%u",
(unsigned int)map->gid));
smbldap_talloc_autofree_ldapmod(mem_ctx, mods);
rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
result = (rc == LDAP_SUCCESS) ?
NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
done:
TALLOC_FREE(mem_ctx);
return result;
}
/**********************************************************************
* Update a group mapping entry. We're quite strict about what can be changed:
* Only the description and displayname may be changed. It simply does not
* make any sense to change the SID, gid or the type in a mapping.
*********************************************************************/
static NTSTATUS ldapsam_update_group_mapping_entry(struct pdb_methods *methods,
GROUP_MAP *map)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
int rc;
const char *filter, *dn;
LDAPMessage *msg = NULL;
LDAPMessage *entry = NULL;
LDAPMod **mods = NULL;
TALLOC_CTX *mem_ctx;
NTSTATUS result;
struct dom_sid_buf buf;
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
DEBUG(0, ("talloc_new failed\n"));
return NT_STATUS_NO_MEMORY;
}
/* Make 100% sure that sid, gid and type are not changed by looking up
* exactly the values we're given in LDAP. */
filter = talloc_asprintf(mem_ctx, "(&(objectClass="LDAP_OBJ_GROUPMAP")"
"(sambaSid=%s)(gidNumber=%u)"
"(sambaGroupType=%d))",
dom_sid_str_buf(&map->sid, &buf),
(unsigned int)map->gid, map->sid_name_use);
if (filter == NULL) {
result = NT_STATUS_NO_MEMORY;
goto done;
}
rc = smbldap_search_suffix(ldap_state->smbldap_state, filter,
get_attr_list(mem_ctx, groupmap_attr_list),
&msg);
smbldap_talloc_autofree_ldapmsg(mem_ctx, msg);
if ((rc != LDAP_SUCCESS) ||
(ldap_count_entries(smbldap_get_ldap(ldap_state->smbldap_state),
msg) != 1) ||
((entry = ldap_first_entry(
smbldap_get_ldap(ldap_state->smbldap_state),
msg)) == NULL)) {
result = NT_STATUS_NO_SUCH_GROUP;
goto done;
}
dn = smbldap_talloc_dn(
mem_ctx, smbldap_get_ldap(ldap_state->smbldap_state), entry);
if (dn == NULL) {
result = NT_STATUS_NO_MEMORY;
goto done;
}
mods = NULL;
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), entry,
&mods, "displayName", map->nt_name);
smbldap_make_mod(smbldap_get_ldap(ldap_state->smbldap_state), entry,
&mods, "description", map->comment);
smbldap_talloc_autofree_ldapmod(mem_ctx, mods);
if (mods == NULL) {
DEBUG(4, ("ldapsam_update_group_mapping_entry: mods is empty: "
"nothing to do\n"));
result = NT_STATUS_OK;
goto done;
}
rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
if (rc != LDAP_SUCCESS) {
result = NT_STATUS_ACCESS_DENIED;
goto done;
}
DEBUG(2, ("ldapsam_update_group_mapping_entry: successfully modified "
"group %lu in LDAP\n", (unsigned long)map->gid));
result = NT_STATUS_OK;
done:
TALLOC_FREE(mem_ctx);
return result;
}
/**********************************************************************
*********************************************************************/
static NTSTATUS ldapsam_delete_group_mapping_entry(struct pdb_methods *methods,
struct dom_sid sid)
{
struct ldapsam_privates *priv =
(struct ldapsam_privates *)methods->private_data;
LDAPMessage *msg, *entry;
int rc;
NTSTATUS result;
TALLOC_CTX *mem_ctx;
char *filter;
struct dom_sid_buf buf;
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
DEBUG(0, ("talloc_new failed\n"));
return NT_STATUS_NO_MEMORY;
}
filter = talloc_asprintf(mem_ctx, "(&(objectClass="LDAP_OBJ_GROUPMAP")("LDAP_ATTRIBUTE_SID"=%s))",
dom_sid_str_buf(&sid, &buf));
if (filter == NULL) {
result = NT_STATUS_NO_MEMORY;
goto done;
}
rc = smbldap_search_suffix(priv->smbldap_state, filter,
get_attr_list(mem_ctx, groupmap_attr_list),
&msg);
smbldap_talloc_autofree_ldapmsg(mem_ctx, msg);
if ((rc != LDAP_SUCCESS) ||
(ldap_count_entries(priv2ld(priv), msg) != 1) ||
((entry = ldap_first_entry(priv2ld(priv), msg)) == NULL)) {
result = NT_STATUS_NO_SUCH_GROUP;
goto done;
}
rc = ldapsam_delete_entry(priv, mem_ctx, entry, LDAP_OBJ_GROUPMAP,
get_attr_list(mem_ctx,
groupmap_attr_list_to_delete));
if ((rc == LDAP_NAMING_VIOLATION) ||
(rc == LDAP_NOT_ALLOWED_ON_RDN) ||
(rc == LDAP_OBJECT_CLASS_VIOLATION)) {
const char *attrs[] = { "sambaGroupType", "description",
"displayName", "sambaSIDList",
NULL };
/* Second try. Don't delete the sambaSID attribute, this is
for "old" entries that are tacked on a winbind
sambaIdmapEntry. */
rc = ldapsam_delete_entry(priv, mem_ctx, entry,
LDAP_OBJ_GROUPMAP, attrs);
}
if ((rc == LDAP_NAMING_VIOLATION) ||
(rc == LDAP_NOT_ALLOWED_ON_RDN) ||
(rc == LDAP_OBJECT_CLASS_VIOLATION)) {
const char *attrs[] = { "sambaGroupType", "description",
"displayName", "sambaSIDList",
"gidNumber", NULL };
/* Third try. This is a post-3.0.21 alias (containing only
* sambaSidEntry and sambaGroupMapping classes), we also have
* to delete the gidNumber attribute, only the sambaSidEntry
* remains */
rc = ldapsam_delete_entry(priv, mem_ctx, entry,
LDAP_OBJ_GROUPMAP, attrs);
}
result = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL;
done:
TALLOC_FREE(mem_ctx);
return result;
}
/**********************************************************************
*********************************************************************/
static NTSTATUS ldapsam_setsamgrent(struct pdb_methods *my_methods,
bool update)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)my_methods->private_data;
const char *filter = NULL;
int rc;
const char **attr_list;
filter = "(objectclass="LDAP_OBJ_GROUPMAP")";
attr_list = get_attr_list( NULL, groupmap_attr_list );
rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
LDAP_SCOPE_SUBTREE, filter,
attr_list, 0, &ldap_state->result);
TALLOC_FREE(attr_list);
if (rc != LDAP_SUCCESS) {
DEBUG(0, ("ldapsam_setsamgrent: LDAP search failed: %s\n",
ldap_err2string(rc)));
DEBUG(3, ("ldapsam_setsamgrent: Query was: %s, %s\n",
lp_ldap_suffix(), filter));
ldap_msgfree(ldap_state->result);
ldap_state->result = NULL;
return NT_STATUS_UNSUCCESSFUL;
}
DEBUG(2, ("ldapsam_setsamgrent: %d entries in the base!\n",
ldap_count_entries(
smbldap_get_ldap(ldap_state->smbldap_state),
ldap_state->result)));
ldap_state->entry =
ldap_first_entry(smbldap_get_ldap(ldap_state->smbldap_state),
ldap_state->result);
ldap_state->index = 0;
return NT_STATUS_OK;
}
/**********************************************************************
*********************************************************************/
static void ldapsam_endsamgrent(struct pdb_methods *my_methods)
{
ldapsam_endsampwent(my_methods);
}
/**********************************************************************
*********************************************************************/
static NTSTATUS ldapsam_getsamgrent(struct pdb_methods *my_methods,
GROUP_MAP *map)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)my_methods->private_data;
bool bret = False;
while (!bret) {
if (!ldap_state->entry)
return ret;
ldap_state->index++;
bret = init_group_from_ldap(ldap_state, map,
ldap_state->entry);
ldap_state->entry = ldap_next_entry(
smbldap_get_ldap(ldap_state->smbldap_state),
ldap_state->entry);
}
return NT_STATUS_OK;
}
/**********************************************************************
*********************************************************************/
static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
const struct dom_sid *domsid, enum lsa_SidType sid_name_use,
GROUP_MAP ***pp_rmap,
size_t *p_num_entries,
bool unix_only)
{
GROUP_MAP *map = NULL;
size_t entries = 0;
*p_num_entries = 0;
*pp_rmap = NULL;
if (!NT_STATUS_IS_OK(ldapsam_setsamgrent(methods, False))) {
DEBUG(0, ("ldapsam_enum_group_mapping: Unable to open "
"passdb\n"));
return NT_STATUS_ACCESS_DENIED;
}
while (true) {
map = talloc_zero(NULL, GROUP_MAP);
if (!map) {
return NT_STATUS_NO_MEMORY;
}
if (!NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, map))) {
TALLOC_FREE(map);
break;
}
if (sid_name_use != SID_NAME_UNKNOWN &&
sid_name_use != map->sid_name_use) {
DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
"not of the requested type\n",
map->nt_name));
continue;
}
if (unix_only == ENUM_ONLY_MAPPED && map->gid == -1) {
DEBUG(11,("ldapsam_enum_group_mapping: group %s is "
"non mapped\n", map->nt_name));
continue;
}
*pp_rmap = talloc_realloc(NULL, *pp_rmap,
GROUP_MAP *, entries + 1);
if (!(*pp_rmap)) {
DEBUG(0,("ldapsam_enum_group_mapping: Unable to "
"enlarge group map!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
(*pp_rmap)[entries] = talloc_move((*pp_rmap), &map);
entries += 1;
}
ldapsam_endsamgrent(methods);
*p_num_entries = entries;
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
const struct dom_sid *alias,
const struct dom_sid *member,
int modop)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
char *dn = NULL;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
int count;
LDAPMod **mods = NULL;
int rc;
enum lsa_SidType type = SID_NAME_USE_NONE;
struct dom_sid_buf tmp;
char *filter = NULL;
if (sid_check_is_in_builtin(alias)) {
type = SID_NAME_ALIAS;
}
if (sid_check_is_in_our_sam(alias)) {
type = SID_NAME_ALIAS;
}
if (type == SID_NAME_USE_NONE) {
struct dom_sid_buf buf;
DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
dom_sid_str_buf(alias, &buf)));
return NT_STATUS_NO_SUCH_ALIAS;
}
if (asprintf(&filter,
"(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
LDAP_OBJ_GROUPMAP,
dom_sid_str_buf(alias, &tmp),
type) < 0) {
return NT_STATUS_NO_MEMORY;
}
if (ldapsam_search_one_group(ldap_state, filter,
&result) != LDAP_SUCCESS) {
SAFE_FREE(filter);
return NT_STATUS_NO_SUCH_ALIAS;
}
count = ldap_count_entries(smbldap_get_ldap(ldap_state->smbldap_state),
result);
if (count < 1) {
DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
ldap_msgfree(result);
SAFE_FREE(filter);
return NT_STATUS_NO_SUCH_ALIAS;
}
if (count > 1) {
DEBUG(1, ("ldapsam_modify_aliasmem: Duplicate entries for "
"filter %s: count=%d\n", filter, count));
ldap_msgfree(result);
SAFE_FREE(filter);
return NT_STATUS_NO_SUCH_ALIAS;
}
SAFE_FREE(filter);
entry = ldap_first_entry(smbldap_get_ldap(ldap_state->smbldap_state),
result);
if (!entry) {
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
dn = smbldap_talloc_dn(talloc_tos(),
smbldap_get_ldap(ldap_state->smbldap_state),
entry);
if (!dn) {
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
smbldap_set_mod(&mods, modop,
get_attr_key2string(groupmap_attr_list,
LDAP_ATTR_SID_LIST),
dom_sid_str_buf(member, &tmp));
rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
ldap_mods_free(mods, True);
ldap_msgfree(result);
TALLOC_FREE(dn);
if (rc == LDAP_TYPE_OR_VALUE_EXISTS) {
return NT_STATUS_MEMBER_IN_ALIAS;
}
if (rc == LDAP_NO_SUCH_ATTRIBUTE) {
return NT_STATUS_MEMBER_NOT_IN_ALIAS;
}
if (rc != LDAP_SUCCESS) {
return NT_STATUS_UNSUCCESSFUL;
}
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_add_aliasmem(struct pdb_methods *methods,
const struct dom_sid *alias,
const struct dom_sid *member)
{
return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
}
static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
const struct dom_sid *alias,
const struct dom_sid *member)
{
return ldapsam_modify_aliasmem(methods, alias, member,
LDAP_MOD_DELETE);
}
static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
const struct dom_sid *alias,
TALLOC_CTX *mem_ctx,
struct dom_sid **pp_members,
size_t *p_num_members)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
int count;
char **values = NULL;
int i;
char *filter = NULL;
uint32_t num_members = 0;
enum lsa_SidType type = SID_NAME_USE_NONE;
struct dom_sid_buf tmp;
*pp_members = NULL;
*p_num_members = 0;
if (sid_check_is_in_builtin(alias)) {
type = SID_NAME_ALIAS;
}
if (sid_check_is_in_our_sam(alias)) {
type = SID_NAME_ALIAS;
}
if (type == SID_NAME_USE_NONE) {
DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
dom_sid_str_buf(alias, &tmp)));
return NT_STATUS_NO_SUCH_ALIAS;
}
if (asprintf(&filter,
"(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
LDAP_OBJ_GROUPMAP,
dom_sid_str_buf(alias, &tmp),
type) < 0) {
return NT_STATUS_NO_MEMORY;
}
if (ldapsam_search_one_group(ldap_state, filter,
&result) != LDAP_SUCCESS) {
SAFE_FREE(filter);
return NT_STATUS_NO_SUCH_ALIAS;
}
count = ldap_count_entries(smbldap_get_ldap(ldap_state->smbldap_state),
result);
if (count < 1) {
DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
ldap_msgfree(result);
SAFE_FREE(filter);
return NT_STATUS_NO_SUCH_ALIAS;
}
if (count > 1) {
DEBUG(1, ("ldapsam_enum_aliasmem: Duplicate entries for "
"filter %s: count=%d\n", filter, count));
ldap_msgfree(result);
SAFE_FREE(filter);
return NT_STATUS_NO_SUCH_ALIAS;
}
SAFE_FREE(filter);
entry = ldap_first_entry(smbldap_get_ldap(ldap_state->smbldap_state),
result);
if (!entry) {
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
values = ldap_get_values(smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_attr_key2string(groupmap_attr_list,
LDAP_ATTR_SID_LIST));
if (values == NULL) {
ldap_msgfree(result);
return NT_STATUS_OK;
}
count = ldap_count_values(values);
for (i=0; i<count; i++) {
struct dom_sid member;
NTSTATUS status;
if (!string_to_sid(&member, values[i]))
continue;
status = add_sid_to_array(mem_ctx, &member, pp_members,
&num_members);
if (!NT_STATUS_IS_OK(status)) {
ldap_value_free(values);
ldap_msgfree(result);
return status;
}
}
*p_num_members = num_members;
ldap_value_free(values);
ldap_msgfree(result);
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_alias_memberships(struct pdb_methods *methods,
TALLOC_CTX *mem_ctx,
const struct dom_sid *domain_sid,
const struct dom_sid *members,
size_t num_members,
uint32_t **pp_alias_rids,
size_t *p_num_alias_rids)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
LDAP *ldap_struct;
const char *attrs[] = { LDAP_ATTRIBUTE_SID, NULL };
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
int i;
int rc;
char *filter;
enum lsa_SidType type = SID_NAME_USE_NONE;
bool is_builtin = false;
bool sid_added = false;
*pp_alias_rids = NULL;
*p_num_alias_rids = 0;
if (sid_check_is_builtin(domain_sid)) {
is_builtin = true;
type = SID_NAME_ALIAS;
}
if (sid_check_is_our_sam(domain_sid)) {
type = SID_NAME_ALIAS;
}
if (type == SID_NAME_USE_NONE) {
struct dom_sid_buf buf;
DEBUG(5, ("SID %s is neither builtin nor domain!\n",
dom_sid_str_buf(domain_sid, &buf)));
return NT_STATUS_UNSUCCESSFUL;
}
if (num_members == 0) {
return NT_STATUS_OK;
}
filter = talloc_asprintf(mem_ctx,
"(&(objectclass="LDAP_OBJ_GROUPMAP")(sambaGroupType=%d)(|",
type);
for (i=0; i<num_members; i++) {
struct dom_sid_buf buf;
filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
filter,
dom_sid_str_buf(&members[i], &buf));
}
filter = talloc_asprintf(mem_ctx, "%s))", filter);
if (filter == NULL) {
return NT_STATUS_NO_MEMORY;
}
if (is_builtin &&
ldap_state->search_cache.filter &&
strcmp(ldap_state->search_cache.filter, filter) == 0) {
filter = talloc_move(filter, &ldap_state->search_cache.filter);
result = ldap_state->search_cache.result;
ldap_state->search_cache.result = NULL;
} else {
rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_suffix(),
LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
if (rc != LDAP_SUCCESS) {
return NT_STATUS_UNSUCCESSFUL;
}
smbldap_talloc_autofree_ldapmsg(filter, result);
}
ldap_struct = smbldap_get_ldap(ldap_state->smbldap_state);
for (entry = ldap_first_entry(ldap_struct, result);
entry != NULL;
entry = ldap_next_entry(ldap_struct, entry))
{
fstring sid_str;
struct dom_sid sid;
uint32_t rid;
if (!smbldap_get_single_attribute(ldap_struct, entry,
LDAP_ATTRIBUTE_SID,
sid_str,
sizeof(sid_str)-1))
continue;
if (!string_to_sid(&sid, sid_str))
continue;
if (!sid_peek_check_rid(domain_sid, &sid, &rid))
continue;
sid_added = true;
if (!add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
p_num_alias_rids)) {
return NT_STATUS_NO_MEMORY;
}
}
if (!is_builtin && !sid_added) {
TALLOC_FREE(ldap_state->search_cache.filter);
/*
* Note: result is a talloc child of filter because of the
* smbldap_talloc_autofree_ldapmsg() usage
*/
ldap_state->search_cache.filter = talloc_move(ldap_state, &filter);
ldap_state->search_cache.result = result;
}
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
enum pdb_policy_type type,
uint32_t value)
{
NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
int rc;
LDAPMod **mods = NULL;
fstring value_string;
const char *policy_attr = NULL;
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
DEBUG(10,("ldapsam_set_account_policy_in_ldap\n"));
if (!ldap_state->domain_dn) {
return NT_STATUS_INVALID_PARAMETER;
}
policy_attr = get_account_policy_attr(type);
if (policy_attr == NULL) {
DEBUG(0,("ldapsam_set_account_policy_in_ldap: invalid "
"policy\n"));
return ntstatus;
}
slprintf(value_string, sizeof(value_string) - 1, "%i", value);
smbldap_set_mod(&mods, LDAP_MOD_REPLACE, policy_attr, value_string);
rc = smbldap_modify(ldap_state->smbldap_state, ldap_state->domain_dn,
mods);
ldap_mods_free(mods, True);
if (rc != LDAP_SUCCESS) {
return ntstatus;
}
if (!cache_account_policy_set(type, value)) {
DEBUG(0,("ldapsam_set_account_policy_in_ldap: failed to "
"update local tdb cache\n"));
return ntstatus;
}
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_set_account_policy(struct pdb_methods *methods,
enum pdb_policy_type type,
uint32_t value)
{
return ldapsam_set_account_policy_in_ldap(methods, type,
value);
}
static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
enum pdb_policy_type type,
uint32_t *value)
{
NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
int count;
int rc;
char **vals = NULL;
const char *filter;
const char *policy_attr = NULL;
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
const char *attrs[2];
DEBUG(10,("ldapsam_get_account_policy_from_ldap\n"));
if (!ldap_state->domain_dn) {
return NT_STATUS_INVALID_PARAMETER;
}
policy_attr = get_account_policy_attr(type);
if (!policy_attr) {
DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
"policy index: %d\n", type));
return ntstatus;
}
attrs[0] = policy_attr;
attrs[1] = NULL;
filter = "(objectClass="LDAP_OBJ_DOMINFO")";
rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
LDAP_SCOPE_BASE, filter, attrs, 0,
&result);
if (rc != LDAP_SUCCESS) {
return ntstatus;
}
count = ldap_count_entries(priv2ld(ldap_state), result);
if (count < 1) {
goto out;
}
entry = ldap_first_entry(priv2ld(ldap_state), result);
if (entry == NULL) {
goto out;
}
vals = ldap_get_values(priv2ld(ldap_state), entry, policy_attr);
if (vals == NULL) {
goto out;
}
*value = (uint32_t)atol(vals[0]);
ntstatus = NT_STATUS_OK;
out:
if (vals)
ldap_value_free(vals);
ldap_msgfree(result);
return ntstatus;
}
/* wrapper around ldapsam_get_account_policy_from_ldap(), handles tdb as cache
- if user hasn't decided to use account policies inside LDAP just reuse the
old tdb values
- if there is a valid cache entry, return that
- if there is an LDAP entry, update cache and return
- otherwise set to default, update cache and return
Guenther
*/
static NTSTATUS ldapsam_get_account_policy(struct pdb_methods *methods,
enum pdb_policy_type type,
uint32_t *value)
{
NTSTATUS ntstatus;
if (cache_account_policy_get(type, value)) {
DEBUG(11,("ldapsam_get_account_policy: got valid value from "
"cache\n"));
return NT_STATUS_OK;
}
ntstatus = ldapsam_get_account_policy_from_ldap(methods, type,
value);
if (NT_STATUS_IS_OK(ntstatus)) {
goto update_cache;
}
DEBUG(10,("ldapsam_get_account_policy: failed to retrieve from "
"ldap\n"));
#if 0
/* should we automagically migrate old tdb value here ? */
if (account_policy_get(type, value))
goto update_ldap;
DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
"default\n", type));
#endif
if (!account_policy_get_default(type, value)) {
return ntstatus;
}
/* update_ldap: */
ntstatus = ldapsam_set_account_policy(methods, type, *value);
if (!NT_STATUS_IS_OK(ntstatus)) {
return ntstatus;
}
update_cache:
if (!cache_account_policy_set(type, *value)) {
DEBUG(0,("ldapsam_get_account_policy: failed to update local "
"tdb as a cache\n"));
return NT_STATUS_UNSUCCESSFUL;
}
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_lookup_rids(struct pdb_methods *methods,
const struct dom_sid *domain_sid,
int num_rids,
uint32_t *rids,
const char **names,
enum lsa_SidType *attrs)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
LDAPMessage *msg = NULL;
LDAPMessage *entry;
char *allsids = NULL;
size_t i, num_mapped;
int rc;
NTSTATUS result = NT_STATUS_NO_MEMORY;
TALLOC_CTX *mem_ctx;
LDAP *ld;
bool is_builtin;
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
DEBUG(0, ("talloc_new failed\n"));
goto done;
}
if (!sid_check_is_builtin(domain_sid) &&
!sid_check_is_our_sam(domain_sid)) {
result = NT_STATUS_INVALID_PARAMETER;
goto done;
}
if (num_rids == 0) {
result = NT_STATUS_NONE_MAPPED;
goto done;
}
for (i=0; i<num_rids; i++)
attrs[i] = SID_NAME_UNKNOWN;
allsids = talloc_strdup(mem_ctx, "");
if (allsids == NULL) {
goto done;
}
for (i=0; i<num_rids; i++) {
struct dom_sid sid;
struct dom_sid_buf buf;
sid_compose(&sid, domain_sid, rids[i]);
allsids = talloc_asprintf_append_buffer(
allsids,
"(sambaSid=%s)",
dom_sid_str_buf(&sid, &buf));
if (allsids == NULL) {
goto done;
}
}
/* First look for users */
{
char *filter;
const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
filter = talloc_asprintf(
mem_ctx, ("(&(objectClass="LDAP_OBJ_SAMBASAMACCOUNT")(|%s))"),
allsids);
if (filter == NULL) {
goto done;
}
rc = smbldap_search(ldap_state->smbldap_state,
lp_ldap_user_suffix(talloc_tos()),
LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
&msg);
smbldap_talloc_autofree_ldapmsg(mem_ctx, msg);
}
if (rc != LDAP_SUCCESS)
goto done;
ld = smbldap_get_ldap(ldap_state->smbldap_state);
num_mapped = 0;
for (entry = ldap_first_entry(ld, msg);
entry != NULL;
entry = ldap_next_entry(ld, entry)) {
uint32_t rid;
int rid_index;
const char *name;
if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
&rid)) {
DEBUG(2, ("Could not find sid from ldap entry\n"));
continue;
}
name = smbldap_talloc_single_attribute(ld, entry, "uid",
names);
if (name == NULL) {
DEBUG(2, ("Could not retrieve uid attribute\n"));
continue;
}
for (rid_index = 0; rid_index < num_rids; rid_index++) {
if (rid == rids[rid_index])
break;
}
if (rid_index == num_rids) {
DEBUG(2, ("Got a RID not asked for: %d\n", rid));
continue;
}
attrs[rid_index] = SID_NAME_USER;
names[rid_index] = name;
num_mapped += 1;
}
if (num_mapped == num_rids) {
/* No need to look for groups anymore -- we're done */
result = NT_STATUS_OK;
goto done;
}
/* Same game for groups */
{
char *filter;
const char *ldap_attrs[] = { "cn", "displayName", "sambaSid",
"sambaGroupType", NULL };
filter = talloc_asprintf(
mem_ctx, "(&(objectClass="LDAP_OBJ_GROUPMAP")(|%s))",
allsids);
if (filter == NULL) {
goto done;
}
rc = smbldap_search(ldap_state->smbldap_state,
lp_ldap_suffix(),
LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
&msg);
smbldap_talloc_autofree_ldapmsg(mem_ctx, msg);
}
if (rc != LDAP_SUCCESS)
goto done;
/* ldap_struct might have changed due to a reconnect */
ld = smbldap_get_ldap(ldap_state->smbldap_state);
/* For consistency checks, we already checked we're only domain or builtin */
is_builtin = sid_check_is_builtin(domain_sid);
for (entry = ldap_first_entry(ld, msg);
entry != NULL;
entry = ldap_next_entry(ld, entry))
{
uint32_t rid;
int rid_index;
const char *attr;
enum lsa_SidType type;
const char *dn = smbldap_talloc_dn(mem_ctx, ld, entry);
attr = smbldap_talloc_single_attribute(ld, entry, "sambaGroupType",
mem_ctx);
if (attr == NULL) {
DEBUG(2, ("Could not extract type from ldap entry %s\n",
dn));
continue;
}
type = (enum lsa_SidType)atol(attr);
/* Consistency checks */
if ((is_builtin && (type != SID_NAME_ALIAS)) ||
(!is_builtin && ((type != SID_NAME_ALIAS) &&
(type != SID_NAME_DOM_GRP)))) {
DEBUG(2, ("Rejecting invalid group mapping entry %s\n", dn));
}
if (!ldapsam_extract_rid_from_entry(ld, entry, domain_sid,
&rid)) {
DEBUG(2, ("Could not find sid from ldap entry %s\n", dn));
continue;
}
attr = smbldap_talloc_single_attribute(ld, entry, "displayName", names);
if (attr == NULL) {
DEBUG(10, ("Could not retrieve 'displayName' attribute from %s\n",
dn));
attr = smbldap_talloc_single_attribute(ld, entry, "cn", names);
}
if (attr == NULL) {
DEBUG(2, ("Could not retrieve naming attribute from %s\n",
dn));
continue;
}
for (rid_index = 0; rid_index < num_rids; rid_index++) {
if (rid == rids[rid_index])
break;
}
if (rid_index == num_rids) {
DEBUG(2, ("Got a RID not asked for: %d\n", rid));
continue;
}
attrs[rid_index] = type;
names[rid_index] = attr;
num_mapped += 1;
}
result = NT_STATUS_NONE_MAPPED;
if (num_mapped > 0)
result = (num_mapped == num_rids) ?
NT_STATUS_OK : STATUS_SOME_UNMAPPED;
done:
TALLOC_FREE(mem_ctx);
return result;
}
static char *get_ldap_filter(TALLOC_CTX *mem_ctx, const char *username)
{
char *filter = NULL;
char *escaped = NULL;
char *result = NULL;
if (asprintf(&filter, "(&%s(objectclass=%s))",
"(uid=%u)", LDAP_OBJ_SAMBASAMACCOUNT) < 0) {
goto done;
}
escaped = escape_ldap_string(talloc_tos(), username);
if (escaped == NULL) goto done;
result = talloc_string_sub(mem_ctx, filter, "%u", username);
done:
SAFE_FREE(filter);
TALLOC_FREE(escaped);
return result;
}
static const char **talloc_attrs(TALLOC_CTX *mem_ctx, ...)
{
int i, num = 0;
va_list ap;
const char **result;
va_start(ap, mem_ctx);
while (va_arg(ap, const char *) != NULL)
num += 1;
va_end(ap);
if ((result = talloc_array(mem_ctx, const char *, num+1)) == NULL) {
return NULL;
}
va_start(ap, mem_ctx);
for (i=0; i<num; i++) {
result[i] = talloc_strdup(result, va_arg(ap, const char*));
if (result[i] == NULL) {
talloc_free(result);
va_end(ap);
return NULL;
}
}
va_end(ap);
result[num] = NULL;
return result;
}
struct ldap_search_state {
struct smbldap_state *connection;
uint32_t acct_flags;
uint16_t group_type;
const char *base;
int scope;
const char *filter;
const char **attrs;
int attrsonly;
void *pagedresults_cookie;
LDAPMessage *entries, *current_entry;
bool (*ldap2displayentry)(struct ldap_search_state *state,
TALLOC_CTX *mem_ctx,
LDAP *ld, LDAPMessage *entry,
struct samr_displayentry *result);
};
static bool ldapsam_search_firstpage(struct pdb_search *search)
{
struct ldap_search_state *state =
(struct ldap_search_state *)search->private_data;
LDAP *ld;
int rc = LDAP_OPERATIONS_ERROR;
state->entries = NULL;
if (smbldap_get_paged_results(state->connection)) {
rc = smbldap_search_paged(state->connection, state->base,
state->scope, state->filter,
state->attrs, state->attrsonly,
lp_ldap_page_size(), &state->entries,
&state->pagedresults_cookie);
}
if ((rc != LDAP_SUCCESS) || (state->entries == NULL)) {
if (state->entries != NULL) {
/* Left over from unsuccessful paged attempt */
ldap_msgfree(state->entries);
state->entries = NULL;
}
rc = smbldap_search(state->connection, state->base,
state->scope, state->filter, state->attrs,
state->attrsonly, &state->entries);
if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
return False;
/* Ok, the server was lying. It told us it could do paged
* searches when it could not. */
smbldap_set_paged_results(state->connection, false);
}
ld = smbldap_get_ldap(state->connection);
if ( ld == NULL) {
DEBUG(5, ("Don't have an LDAP connection right after a "
"search\n"));
return False;
}
state->current_entry = ldap_first_entry(ld, state->entries);
return True;
}
static bool ldapsam_search_nextpage(struct pdb_search *search)
{
struct ldap_search_state *state =
(struct ldap_search_state *)search->private_data;
int rc;
if (!smbldap_get_paged_results(state->connection)) {
/* There is no next page when there are no paged results */
return False;
}
rc = smbldap_search_paged(state->connection, state->base,
state->scope, state->filter, state->attrs,
state->attrsonly, lp_ldap_page_size(),
&state->entries,
&state->pagedresults_cookie);
if ((rc != LDAP_SUCCESS) || (state->entries == NULL))
return False;
state->current_entry = ldap_first_entry(
smbldap_get_ldap(state->connection), state->entries);
if (state->current_entry == NULL) {
ldap_msgfree(state->entries);
state->entries = NULL;
return false;
}
return True;
}
static bool ldapsam_search_next_entry(struct pdb_search *search,
struct samr_displayentry *entry)
{
struct ldap_search_state *state =
(struct ldap_search_state *)search->private_data;
bool result;
retry:
if ((state->entries == NULL) && (state->pagedresults_cookie == NULL))
return False;
if ((state->entries == NULL) &&
!ldapsam_search_nextpage(search))
return False;
if (state->current_entry == NULL) {
return false;
}
result = state->ldap2displayentry(state, search,
smbldap_get_ldap(state->connection),
state->current_entry, entry);
if (!result) {
char *dn;
dn = ldap_get_dn(smbldap_get_ldap(state->connection),
state->current_entry);
DEBUG(5, ("Skipping entry %s\n", dn != NULL ? dn : "<NULL>"));
if (dn != NULL) ldap_memfree(dn);
}
state->current_entry = ldap_next_entry(
smbldap_get_ldap(state->connection), state->current_entry);
if (state->current_entry == NULL) {
ldap_msgfree(state->entries);
state->entries = NULL;
}
if (!result) goto retry;
return True;
}
static void ldapsam_search_end(struct pdb_search *search)
{
struct ldap_search_state *state =
(struct ldap_search_state *)search->private_data;
int rc;
if (state->pagedresults_cookie == NULL)
return;
if (state->entries != NULL)
ldap_msgfree(state->entries);
state->entries = NULL;
state->current_entry = NULL;
if (!smbldap_get_paged_results(state->connection)) {
return;
}
/* Tell the LDAP server we're not interested in the rest anymore. */
rc = smbldap_search_paged(state->connection, state->base, state->scope,
state->filter, state->attrs,
state->attrsonly, 0, &state->entries,
&state->pagedresults_cookie);
if (rc != LDAP_SUCCESS)
DEBUG(5, ("Could not end search properly\n"));
return;
}
static bool ldapuser2displayentry(struct ldap_search_state *state,
TALLOC_CTX *mem_ctx,
LDAP *ld, LDAPMessage *entry,
struct samr_displayentry *result)
{
char **vals;
size_t converted_size;
struct dom_sid sid;
uint32_t acct_flags;
vals = ldap_get_values(ld, entry, "sambaAcctFlags");
if ((vals == NULL) || (vals[0] == NULL)) {
acct_flags = ACB_NORMAL;
} else {
acct_flags = pdb_decode_acct_ctrl(vals[0]);
ldap_value_free(vals);
}
if ((state->acct_flags != 0) &&
((state->acct_flags & acct_flags) == 0))
return False;
result->acct_flags = acct_flags;
result->account_name = "";
result->fullname = "";
result->description = "";
vals = ldap_get_values(ld, entry, "uid");
if ((vals == NULL) || (vals[0] == NULL)) {
DEBUG(5, ("\"uid\" not found\n"));
return False;
}
if (!pull_utf8_talloc(mem_ctx,
discard_const_p(char *, &result->account_name),
vals[0], &converted_size))
{
DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s\n",
strerror(errno)));
}
ldap_value_free(vals);
vals = ldap_get_values(ld, entry, "displayName");
if ((vals == NULL) || (vals[0] == NULL))
DEBUG(8, ("\"displayName\" not found\n"));
else if (!pull_utf8_talloc(mem_ctx,
discard_const_p(char *, &result->fullname),
vals[0], &converted_size))
{
DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s\n",
strerror(errno)));
}
ldap_value_free(vals);
vals = ldap_get_values(ld, entry, "description");
if ((vals == NULL) || (vals[0] == NULL))
DEBUG(8, ("\"description\" not found\n"));
else if (!pull_utf8_talloc(mem_ctx,
discard_const_p(char *, &result->description),
vals[0], &converted_size))
{
DEBUG(0,("ldapuser2displayentry: pull_utf8_talloc failed: %s\n",
strerror(errno)));
}
ldap_value_free(vals);
if ((result->account_name == NULL) ||
(result->fullname == NULL) ||
(result->description == NULL)) {
DEBUG(0, ("talloc failed\n"));
return False;
}
vals = ldap_get_values(ld, entry, "sambaSid");
if ((vals == NULL) || (vals[0] == NULL)) {
DEBUG(0, ("\"objectSid\" not found\n"));
return False;
}
if (!string_to_sid(&sid, vals[0])) {
DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
ldap_value_free(vals);
return False;
}
ldap_value_free(vals);
if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)) {
struct dom_sid_buf buf;
DEBUG(0, ("sid %s does not belong to our domain\n",
dom_sid_str_buf(&sid, &buf)));
return False;
}
return True;
}
static bool ldapsam_search_users(struct pdb_methods *methods,
struct pdb_search *search,
uint32_t acct_flags)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
struct ldap_search_state *state;
state = talloc(search, struct ldap_search_state);
if (state == NULL) {
DEBUG(0, ("talloc failed\n"));
return False;
}
state->connection = ldap_state->smbldap_state;
if ((acct_flags != 0) && ((acct_flags & ACB_NORMAL) != 0))
state->base = lp_ldap_user_suffix(talloc_tos());
else if ((acct_flags != 0) &&
((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
state->base = lp_ldap_machine_suffix(talloc_tos());
else
state->base = lp_ldap_suffix();
state->acct_flags = acct_flags;
state->base = talloc_strdup(search, state->base);
state->scope = LDAP_SCOPE_SUBTREE;
state->filter = get_ldap_filter(search, "*");
state->attrs = talloc_attrs(search, "uid", "sambaSid",
"displayName", "description",
"sambaAcctFlags", NULL);
state->attrsonly = 0;
state->pagedresults_cookie = NULL;
state->entries = NULL;
state->ldap2displayentry = ldapuser2displayentry;
if ((state->filter == NULL) || (state->attrs == NULL)) {
DEBUG(0, ("talloc failed\n"));
return False;
}
search->private_data = state;
search->next_entry = ldapsam_search_next_entry;
search->search_end = ldapsam_search_end;
return ldapsam_search_firstpage(search);
}
static bool ldapgroup2displayentry(struct ldap_search_state *state,
TALLOC_CTX *mem_ctx,
LDAP *ld, LDAPMessage *entry,
struct samr_displayentry *result)
{
char **vals;
size_t converted_size;
struct dom_sid sid;
uint16_t group_type;
result->account_name = "";
result->fullname = "";
result->description = "";
vals = ldap_get_values(ld, entry, "sambaGroupType");
if ((vals == NULL) || (vals[0] == NULL)) {
DEBUG(5, ("\"sambaGroupType\" not found\n"));
if (vals != NULL) {
ldap_value_free(vals);
}
return False;
}
group_type = atoi(vals[0]);
if ((state->group_type != 0) &&
((state->group_type != group_type))) {
ldap_value_free(vals);
return False;
}
ldap_value_free(vals);
/* display name is the NT group name */
vals = ldap_get_values(ld, entry, "displayName");
if ((vals == NULL) || (vals[0] == NULL)) {
DEBUG(8, ("\"displayName\" not found\n"));
/* fallback to the 'cn' attribute */
vals = ldap_get_values(ld, entry, "cn");
if ((vals == NULL) || (vals[0] == NULL)) {
DEBUG(5, ("\"cn\" not found\n"));
return False;
}
if (!pull_utf8_talloc(mem_ctx,
discard_const_p(char *,
&result->account_name),
vals[0], &converted_size))
{
DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc "
"failed: %s\n", strerror(errno)));
}
}
else if (!pull_utf8_talloc(mem_ctx,
discard_const_p(char *,
&result->account_name),
vals[0], &converted_size))
{
DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s\n",
strerror(errno)));
}
ldap_value_free(vals);
vals = ldap_get_values(ld, entry, "description");
if ((vals == NULL) || (vals[0] == NULL))
DEBUG(8, ("\"description\" not found\n"));
else if (!pull_utf8_talloc(mem_ctx,
discard_const_p(char *, &result->description),
vals[0], &converted_size))
{
DEBUG(0,("ldapgroup2displayentry: pull_utf8_talloc failed: %s\n",
strerror(errno)));
}
ldap_value_free(vals);
if ((result->account_name == NULL) ||
(result->fullname == NULL) ||
(result->description == NULL)) {
DEBUG(0, ("talloc failed\n"));
return False;
}
vals = ldap_get_values(ld, entry, "sambaSid");
if ((vals == NULL) || (vals[0] == NULL)) {
DEBUG(0, ("\"objectSid\" not found\n"));
if (vals != NULL) {
ldap_value_free(vals);
}
return False;
}
if (!string_to_sid(&sid, vals[0])) {
DEBUG(0, ("Could not convert %s to SID\n", vals[0]));
return False;
}
ldap_value_free(vals);
switch (group_type) {
case SID_NAME_DOM_GRP:
case SID_NAME_ALIAS:
if (!sid_peek_check_rid(get_global_sam_sid(), &sid, &result->rid)
&& !sid_peek_check_rid(&global_sid_Builtin, &sid, &result->rid))
{
struct dom_sid_buf buf;
DEBUG(0, ("%s is not in our domain\n",
dom_sid_str_buf(&sid, &buf)));
return False;
}
break;
default:
DEBUG(0,("unknown group type: %d\n", group_type));
return False;
}
result->acct_flags = 0;
return True;
}
static bool ldapsam_search_grouptype(struct pdb_methods *methods,
struct pdb_search *search,
const struct dom_sid *sid,
enum lsa_SidType type)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
struct ldap_search_state *state;
struct dom_sid_buf tmp;
state = talloc(search, struct ldap_search_state);
if (state == NULL) {
DEBUG(0, ("talloc failed\n"));
return False;
}
state->connection = ldap_state->smbldap_state;
state->base = lp_ldap_suffix();
state->connection = ldap_state->smbldap_state;
state->scope = LDAP_SCOPE_SUBTREE;
state->filter = talloc_asprintf(search, "(&(objectclass="LDAP_OBJ_GROUPMAP")"
"(sambaGroupType=%d)(sambaSID=%s*))",
type,
dom_sid_str_buf(sid, &tmp));
state->attrs = talloc_attrs(search, "cn", "sambaSid",
"displayName", "description",
"sambaGroupType", NULL);
state->attrsonly = 0;
state->pagedresults_cookie = NULL;
state->entries = NULL;
state->group_type = type;
state->ldap2displayentry = ldapgroup2displayentry;
if ((state->filter == NULL) || (state->attrs == NULL)) {
DEBUG(0, ("talloc failed\n"));
return False;
}
search->private_data = state;
search->next_entry = ldapsam_search_next_entry;
search->search_end = ldapsam_search_end;
return ldapsam_search_firstpage(search);
}
static bool ldapsam_search_groups(struct pdb_methods *methods,
struct pdb_search *search)
{
return ldapsam_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP);
}
static bool ldapsam_search_aliases(struct pdb_methods *methods,
struct pdb_search *search,
const struct dom_sid *sid)
{
return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
}
static uint32_t ldapsam_capabilities(struct pdb_methods *methods)
{
return PDB_CAP_STORE_RIDS;
}
static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
uint32_t *rid)
{
struct smbldap_state *smbldap_state = priv->smbldap_state;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
LDAPMod **mods = NULL;
NTSTATUS status;
char *value;
int rc;
uint32_t nextRid = 0;
const char *dn;
uint32_t tmp;
int error = 0;
TALLOC_CTX *mem_ctx;
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
DEBUG(0, ("talloc_new failed\n"));
return NT_STATUS_NO_MEMORY;
}
status = smbldap_search_domain_info(smbldap_state, &result,
get_global_sam_name(), False);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(3, ("Could not get domain info: %s\n",
nt_errstr(status)));
goto done;
}
smbldap_talloc_autofree_ldapmsg(mem_ctx, result);
entry = ldap_first_entry(priv2ld(priv), result);
if (entry == NULL) {
DEBUG(0, ("Could not get domain info entry\n"));
status = NT_STATUS_INTERNAL_DB_CORRUPTION;
goto done;
}
/* Find the largest of the three attributes "sambaNextRid",
"sambaNextGroupRid" and "sambaNextUserRid". I gave up on the
concept of differentiating between user and group rids, and will
use only "sambaNextRid" in the future. But for compatibility
reasons I look if others have chosen different strategies -- VL */
value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
"sambaNextRid", mem_ctx);
if (value != NULL) {
tmp = (uint32_t)smb_strtoul(value,
NULL,
10,
&error,
SMB_STR_STANDARD);
if (error != 0) {
goto done;
}
nextRid = MAX(nextRid, tmp);
}
value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
"sambaNextUserRid", mem_ctx);
if (value != NULL) {
tmp = (uint32_t)smb_strtoul(value,
NULL,
10,
&error,
SMB_STR_STANDARD);
if (error != 0) {
goto done;
}
nextRid = MAX(nextRid, tmp);
}
value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
"sambaNextGroupRid", mem_ctx);
if (value != NULL) {
tmp = (uint32_t)smb_strtoul(value,
NULL,
10,
&error,
SMB_STR_STANDARD);
if (error != 0) {
goto done;
}
nextRid = MAX(nextRid, tmp);
}
if (nextRid == 0) {
nextRid = BASE_RID-1;
}
nextRid += 1;
smbldap_make_mod(priv2ld(priv), entry, &mods, "sambaNextRid",
talloc_asprintf(mem_ctx, "%d", nextRid));
smbldap_talloc_autofree_ldapmod(mem_ctx, mods);
if ((dn = smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)) == NULL) {
status = NT_STATUS_NO_MEMORY;
goto done;
}
rc = smbldap_modify(smbldap_state, dn, mods);
/* ACCESS_DENIED is used as a placeholder for "the modify failed,
* please retry" */
status = (rc == LDAP_SUCCESS) ? NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
done:
if (NT_STATUS_IS_OK(status)) {
*rid = nextRid;
}
TALLOC_FREE(mem_ctx);
return status;
}
static NTSTATUS ldapsam_new_rid_internal(struct pdb_methods *methods, uint32_t *rid)
{
int i;
for (i=0; i<10; i++) {
NTSTATUS result = ldapsam_get_new_rid(
(struct ldapsam_privates *)methods->private_data, rid);
if (NT_STATUS_IS_OK(result)) {
return result;
}
if (!NT_STATUS_EQUAL(result, NT_STATUS_ACCESS_DENIED)) {
return result;
}
/* The ldap update failed (maybe a race condition), retry */
}
/* Tried 10 times, fail. */
return NT_STATUS_ACCESS_DENIED;
}
static bool ldapsam_new_rid(struct pdb_methods *methods, uint32_t *rid)
{
NTSTATUS result = ldapsam_new_rid_internal(methods, rid);
return NT_STATUS_IS_OK(result) ? True : False;
}
static bool ldapsam_sid_to_id(struct pdb_methods *methods,
const struct dom_sid *sid,
struct unixid *id)
{
struct ldapsam_privates *priv =
(struct ldapsam_privates *)methods->private_data;
char *filter;
int error = 0;
struct dom_sid_buf buf;
const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
NULL };
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
bool ret = False;
char *value;
int rc;
TALLOC_CTX *mem_ctx;
ret = pdb_sid_to_id_unix_users_and_groups(sid, id);
if (ret == true) {
return true;
}
mem_ctx = talloc_new(NULL);
if (mem_ctx == NULL) {
DEBUG(0, ("talloc_new failed\n"));
return False;
}
filter = talloc_asprintf(mem_ctx,
"(&(sambaSid=%s)"
"(|(objectClass="LDAP_OBJ_GROUPMAP")(objectClass="LDAP_OBJ_SAMBASAMACCOUNT")))",
dom_sid_str_buf(sid, &buf));
if (filter == NULL) {
DEBUG(5, ("talloc_asprintf failed\n"));
goto done;
}
rc = smbldap_search_suffix(priv->smbldap_state, filter,
attrs, &result);
if (rc != LDAP_SUCCESS) {
goto done;
}
smbldap_talloc_autofree_ldapmsg(mem_ctx, result);
if (ldap_count_entries(priv2ld(priv), result) != 1) {
DEBUG(10, ("Got %d entries, expected one\n",
ldap_count_entries(priv2ld(priv), result)));
goto done;
}
entry = ldap_first_entry(priv2ld(priv), result);
value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
"sambaGroupType", mem_ctx);
if (value != NULL) {
const char *gid_str;
/* It's a group */
gid_str = smbldap_talloc_single_attribute(
priv2ld(priv), entry, "gidNumber", mem_ctx);
if (gid_str == NULL) {
DEBUG(1, ("%s has sambaGroupType but no gidNumber\n",
smbldap_talloc_dn(mem_ctx, priv2ld(priv),
entry)));
goto done;
}
id->id = smb_strtoul(gid_str,
NULL,
10,
&error,
SMB_STR_STANDARD);
if (error != 0) {
goto done;
}
id->type = ID_TYPE_GID;
ret = True;
goto done;
}
/* It must be a user */
value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
"uidNumber", mem_ctx);
if (value == NULL) {
DEBUG(1, ("Could not find uidNumber in %s\n",
smbldap_talloc_dn(mem_ctx, priv2ld(priv), entry)));
goto done;
}
id->id = smb_strtoul(value, NULL, 10, &error, SMB_STR_STANDARD);
if (error != 0) {
goto done;
}
id->type = ID_TYPE_UID;
ret = True;
done:
TALLOC_FREE(mem_ctx);
return ret;
}
/**
* Find the SID for a uid.
* This is shortcut is only used if ldapsam:trusted is set to true.
*/
static bool ldapsam_uid_to_sid(struct pdb_methods *methods, uid_t uid,
struct dom_sid *sid)
{
struct ldapsam_privates *priv =
(struct ldapsam_privates *)methods->private_data;
char *filter;
const char *attrs[] = { "sambaSID", NULL };
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
bool ret = false;
char *user_sid_string;
struct dom_sid user_sid;
int rc;
TALLOC_CTX *tmp_ctx = talloc_stackframe();
filter = talloc_asprintf(tmp_ctx,
"(&(uidNumber=%u)"
"(objectClass="LDAP_OBJ_POSIXACCOUNT")"
"(objectClass="LDAP_OBJ_SAMBASAMACCOUNT"))",
(unsigned int)uid);
if (filter == NULL) {
DEBUG(3, ("talloc_asprintf failed\n"));
goto done;
}
rc = smbldap_search_suffix(priv->smbldap_state, filter, attrs, &result);
if (rc != LDAP_SUCCESS) {
goto done;
}
smbldap_talloc_autofree_ldapmsg(tmp_ctx, result);
if (ldap_count_entries(priv2ld(priv), result) != 1) {
DEBUG(3, ("ERROR: Got %d entries for uid %u, expected one\n",
ldap_count_entries(priv2ld(priv), result),
(unsigned int)uid));
goto done;
}
entry = ldap_first_entry(priv2ld(priv), result);
user_sid_string = smbldap_talloc_single_attribute(priv2ld(priv), entry,
"sambaSID", tmp_ctx);
if (user_sid_string == NULL) {
DEBUG(1, ("Could not find sambaSID in object '%s'\n",
smbldap_talloc_dn(tmp_ctx, priv2ld(priv), entry)));
goto done;
}
if (!string_to_sid(&user_sid, user_sid_string)) {
DEBUG(3, ("Error calling string_to_sid for sid '%s'\n",
user_sid_string));
goto done;
}
sid_copy(sid, &user_sid);
ret = true;
done:
TALLOC_FREE(tmp_ctx);
return ret;
}
/**
* Find the SID for a gid.
* This is shortcut is only used if ldapsam:trusted is set to true.
*/
static bool ldapsam_gid_to_sid(struct pdb_methods *methods, gid_t gid,
struct dom_sid *sid)
{
struct ldapsam_privates *priv =
(struct ldapsam_privates *)methods->private_data;
char *filter;
const char *attrs[] = { "sambaSID", NULL };
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
bool ret = false;
char *group_sid_string;
struct dom_sid group_sid;
int rc;
TALLOC_CTX *tmp_ctx = talloc_stackframe();
filter = talloc_asprintf(tmp_ctx,
"(&(gidNumber=%u)"
"(objectClass="LDAP_OBJ_GROUPMAP"))",
(unsigned int)gid);
if (filter == NULL) {
DEBUG(3, ("talloc_asprintf failed\n"));
goto done;
}
rc = smbldap_search_suffix(priv->smbldap_state, filter, attrs, &result);
if (rc != LDAP_SUCCESS) {
goto done;
}
smbldap_talloc_autofree_ldapmsg(tmp_ctx, result);
if (ldap_count_entries(priv2ld(priv), result) != 1) {
DEBUG(3, ("ERROR: Got %d entries for gid %u, expected one\n",
ldap_count_entries(priv2ld(priv), result),
(unsigned int)gid));
goto done;
}
entry = ldap_first_entry(priv2ld(priv), result);
group_sid_string = smbldap_talloc_single_attribute(priv2ld(priv), entry,
"sambaSID", tmp_ctx);
if (group_sid_string == NULL) {
DEBUG(1, ("Could not find sambaSID in object '%s'\n",
smbldap_talloc_dn(tmp_ctx, priv2ld(priv), entry)));
goto done;
}
if (!string_to_sid(&group_sid, group_sid_string)) {
DEBUG(3, ("Error calling string_to_sid for sid '%s'\n",
group_sid_string));
goto done;
}
sid_copy(sid, &group_sid);
ret = true;
done:
TALLOC_FREE(tmp_ctx);
return ret;
}
static bool ldapsam_id_to_sid(struct pdb_methods *methods, struct unixid *id,
struct dom_sid *sid)
{
switch (id->type) {
case ID_TYPE_UID:
return ldapsam_uid_to_sid(methods, id->id, sid);
case ID_TYPE_GID:
return ldapsam_gid_to_sid(methods, id->id, sid);
default:
return false;
}
}
/*
* The following functions are called only if
* ldapsam:trusted and ldapsam:editposix are
* set to true
*/
/*
* ldapsam_create_user creates a new
* posixAccount and sambaSamAccount object
* in the ldap users subtree
*
* The uid is allocated by winbindd.
*/
static NTSTATUS ldapsam_create_user(struct pdb_methods *my_methods,
TALLOC_CTX *tmp_ctx, const char *name,
uint32_t acb_info, uint32_t *rid)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
LDAPMessage *entry = NULL;
LDAPMessage *result = NULL;
uint32_t num_result;
bool is_machine = False;
bool add_posix = False;
bool init_okay = False;
LDAPMod **mods = NULL;
struct samu *user;
char *filter;
char *username;
char *homedir;
char *gidstr;
char *uidstr;
char *shell;
const char *dn = NULL;
struct dom_sid group_sid;
struct dom_sid user_sid;
gid_t gid = -1;
uid_t uid = -1;
NTSTATUS ret;
int rc;
if (((acb_info & ACB_NORMAL) && name[strlen(name)-1] == '$') ||
acb_info & ACB_WSTRUST ||
acb_info & ACB_SVRTRUST ||
acb_info & ACB_DOMTRUST) {
is_machine = True;
}
username = escape_ldap_string(talloc_tos(), name);
filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass="LDAP_OBJ_POSIXACCOUNT"))",
username);
TALLOC_FREE(username);
rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
if (rc != LDAP_SUCCESS) {
DEBUG(0,("ldapsam_create_user: ldap search failed!\n"));
return NT_STATUS_ACCESS_DENIED;
}
smbldap_talloc_autofree_ldapmsg(tmp_ctx, result);
num_result = ldap_count_entries(priv2ld(ldap_state), result);
if (num_result > 1) {
DEBUG (0, ("ldapsam_create_user: More than one user with name [%s] ?!\n", name));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
if (num_result == 1) {
char *tmp;
/* check if it is just a posix account.
* or if there is a sid attached to this entry
*/
entry = ldap_first_entry(priv2ld(ldap_state), result);
if (!entry) {
return NT_STATUS_UNSUCCESSFUL;
}
tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
if (tmp) {
DEBUG (1, ("ldapsam_create_user: The user [%s] already exist!\n", name));
return NT_STATUS_USER_EXISTS;
}
/* it is just a posix account, retrieve the dn for later use */
dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
if (!dn) {
DEBUG(0,("ldapsam_create_user: Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
}
if (num_result == 0) {
add_posix = True;
}
/* Create the basic samu structure and generate the mods for the ldap commit */
if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
DEBUG(1, ("ldapsam_create_user: Could not allocate a new RID\n"));
return ret;
}
sid_compose(&user_sid, get_global_sam_sid(), *rid);
user = samu_new(tmp_ctx);
if (!user) {
DEBUG(1,("ldapsam_create_user: Unable to allocate user struct\n"));
return NT_STATUS_NO_MEMORY;
}
if (!pdb_set_username(user, name, PDB_SET)) {
DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
return NT_STATUS_UNSUCCESSFUL;
}
if (!pdb_set_domain(user, get_global_sam_name(), PDB_SET)) {
DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
return NT_STATUS_UNSUCCESSFUL;
}
if (is_machine) {
if (acb_info & ACB_NORMAL) {
if (!pdb_set_acct_ctrl(user, ACB_WSTRUST, PDB_SET)) {
DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
return NT_STATUS_UNSUCCESSFUL;
}
} else {
if (!pdb_set_acct_ctrl(user, acb_info, PDB_SET)) {
DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
return NT_STATUS_UNSUCCESSFUL;
}
}
} else {
if (!pdb_set_acct_ctrl(user, ACB_NORMAL | ACB_DISABLED, PDB_SET)) {
DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
return NT_STATUS_UNSUCCESSFUL;
}
}
if (!pdb_set_user_sid(user, &user_sid, PDB_SET)) {
DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
return NT_STATUS_UNSUCCESSFUL;
}
init_okay = init_ldap_from_sam(ldap_state, entry, &mods, user, pdb_element_is_set_or_changed);
if (!init_okay) {
DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
ldap_mods_free(mods, true);
return NT_STATUS_UNSUCCESSFUL;
}
if (ldap_state->schema_ver != SCHEMAVER_SAMBASAMACCOUNT) {
DEBUG(1,("ldapsam_create_user: Unsupported schema version\n"));
}
smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SAMBASAMACCOUNT);
if (add_posix) {
char *escape_name;
DEBUG(3,("ldapsam_create_user: Creating new posix user\n"));
/* retrieve the Domain Users group gid */
if (!sid_compose(&group_sid, get_global_sam_sid(), DOMAIN_RID_USERS) ||
!sid_to_gid(&group_sid, &gid)) {
DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
ldap_mods_free(mods, true);
return NT_STATUS_INVALID_PRIMARY_GROUP;
}
/* lets allocate a new userid for this user */
if (!winbind_allocate_uid(&uid)) {
DEBUG (0, ("ldapsam_create_user: Unable to allocate a new user id: bailing out!\n"));
ldap_mods_free(mods, true);
return NT_STATUS_UNSUCCESSFUL;
}
if (is_machine) {
/* TODO: choose a more appropriate default for machines */
homedir = talloc_sub_specified(tmp_ctx,
lp_template_homedir(),
"SMB_workstations_home",
NULL,
ldap_state->domain_name,
uid,
gid);
shell = talloc_strdup(tmp_ctx, "/bin/false");
} else {
homedir = talloc_sub_specified(tmp_ctx,
lp_template_homedir(),
name,
NULL,
ldap_state->domain_name,
uid,
gid);
shell = talloc_sub_specified(tmp_ctx,
lp_template_shell(),
name,
NULL,
ldap_state->domain_name,
uid,
gid);
}
uidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)uid);
gidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)gid);
escape_name = escape_rdn_val_string_alloc(name);
if (!escape_name) {
DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
ldap_mods_free(mods, true);
return NT_STATUS_NO_MEMORY;
}
if (is_machine) {
dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_machine_suffix (talloc_tos()));
} else {
dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", escape_name, lp_ldap_user_suffix (talloc_tos()));
}
SAFE_FREE(escape_name);
if (!homedir || !shell || !uidstr || !gidstr || !dn) {
DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
ldap_mods_free(mods, true);
return NT_STATUS_NO_MEMORY;
}
smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_ACCOUNT);
smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_POSIXACCOUNT);
smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
smbldap_set_mod(&mods, LDAP_MOD_ADD, "uidNumber", uidstr);
smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
smbldap_set_mod(&mods, LDAP_MOD_ADD, "homeDirectory", homedir);
smbldap_set_mod(&mods, LDAP_MOD_ADD, "loginShell", shell);
}
if (add_posix) {
rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
} else {
rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
}
ldap_mods_free(mods, true);
if (rc != LDAP_SUCCESS) {
DEBUG(0,("ldapsam_create_user: failed to create a new user [%s] (dn = %s)\n", name ,dn));
return NT_STATUS_UNSUCCESSFUL;
}
DEBUG(2,("ldapsam_create_user: added account [%s] in the LDAP database\n", name));
flush_pwnam_cache();
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_delete_user(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, struct samu *sam_acct)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
int num_result;
const char *dn;
char *filter;
int rc;
DEBUG(0,("ldapsam_delete_user: Attempt to delete user [%s]\n", pdb_get_username(sam_acct)));
filter = talloc_asprintf(tmp_ctx,
"(&(uid=%s)"
"(objectClass="LDAP_OBJ_POSIXACCOUNT")"
"(objectClass="LDAP_OBJ_SAMBASAMACCOUNT"))",
pdb_get_username(sam_acct));
if (filter == NULL) {
return NT_STATUS_NO_MEMORY;
}
rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
if (rc != LDAP_SUCCESS) {
DEBUG(0,("ldapsam_delete_user: user search failed!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
smbldap_talloc_autofree_ldapmsg(tmp_ctx, result);
num_result = ldap_count_entries(priv2ld(ldap_state), result);
if (num_result == 0) {
DEBUG(0,("ldapsam_delete_user: user not found!\n"));
return NT_STATUS_NO_SUCH_USER;
}
if (num_result > 1) {
DEBUG (0, ("ldapsam_delete_user: More than one user with name [%s] ?!\n", pdb_get_username(sam_acct)));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
entry = ldap_first_entry(priv2ld(ldap_state), result);
if (!entry) {
return NT_STATUS_UNSUCCESSFUL;
}
/* it is just a posix account, retrieve the dn for later use */
dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
if (!dn) {
DEBUG(0,("ldapsam_delete_user: Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
/* try to remove memberships first */
{
NTSTATUS status;
struct dom_sid *sids = NULL;
gid_t *gids = NULL;
uint32_t num_groups = 0;
int i;
uint32_t user_rid = pdb_get_user_rid(sam_acct);
status = ldapsam_enum_group_memberships(my_methods,
tmp_ctx,
sam_acct,
&sids,
&gids,
&num_groups);
if (!NT_STATUS_IS_OK(status)) {
goto delete_dn;
}
for (i=0; i < num_groups; i++) {
uint32_t group_rid;
sid_peek_rid(&sids[i], &group_rid);
ldapsam_del_groupmem(my_methods,
tmp_ctx,
group_rid,
user_rid);
}
}
delete_dn:
rc = smbldap_delete(ldap_state->smbldap_state, dn);
if (rc != LDAP_SUCCESS) {
return NT_STATUS_UNSUCCESSFUL;
}
flush_pwnam_cache();
return NT_STATUS_OK;
}
/*
* ldapsam_create_group creates a new
* posixGroup and sambaGroupMapping object
* in the ldap groups subtree
*
* The gid is allocated by winbindd.
*/
static NTSTATUS ldapsam_create_dom_group(struct pdb_methods *my_methods,
TALLOC_CTX *tmp_ctx,
const char *name,
uint32_t *rid)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
NTSTATUS ret;
LDAPMessage *entry = NULL;
LDAPMessage *result = NULL;
uint32_t num_result;
bool is_new_entry = False;
LDAPMod **mods = NULL;
char *filter;
char *groupname;
const char *grouptype;
char *gidstr;
const char *dn = NULL;
struct dom_sid group_sid;
struct dom_sid_buf buf;
gid_t gid = -1;
int rc;
int error = 0;
groupname = escape_ldap_string(talloc_tos(), name);
filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass="LDAP_OBJ_POSIXGROUP"))",
groupname);
TALLOC_FREE(groupname);
rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
if (rc != LDAP_SUCCESS) {
DEBUG(0,("ldapsam_create_group: ldap search failed!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
smbldap_talloc_autofree_ldapmsg(tmp_ctx, result);
num_result = ldap_count_entries(priv2ld(ldap_state), result);
if (num_result > 1) {
DEBUG (0, ("ldapsam_create_group: There exists more than one group with name [%s]: bailing out!\n", name));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
if (num_result == 1) {
char *tmp;
/* check if it is just a posix group.
* or if there is a sid attached to this entry
*/
entry = ldap_first_entry(priv2ld(ldap_state), result);
if (!entry) {
return NT_STATUS_UNSUCCESSFUL;
}
tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "sambaSID", tmp_ctx);
if (tmp) {
DEBUG (1, ("ldapsam_create_group: The group [%s] already exist!\n", name));
return NT_STATUS_GROUP_EXISTS;
}
/* it is just a posix group, retrieve the gid and the dn for later use */
tmp = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
if (!tmp) {
DEBUG (1, ("ldapsam_create_group: Couldn't retrieve the gidNumber for [%s]?!?!\n", name));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
gid = smb_strtoul(tmp, NULL, 10, &error, SMB_STR_STANDARD);
if (error != 0) {
DBG_ERR("Failed to convert gidNumber\n");
return NT_STATUS_UNSUCCESSFUL;
}
dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
if (!dn) {
DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
}
if (num_result == 0) {
is_new_entry = true;
}
if (!NT_STATUS_IS_OK((ret = ldapsam_new_rid_internal(my_methods, rid)))) {
DEBUG(1, ("ldapsam_create_group: Could not allocate a new RID\n"));
return ret;
}
sid_compose(&group_sid, get_global_sam_sid(), *rid);
grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
if (!grouptype) {
DEBUG(0,("ldapsam_create_group: Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_GROUPMAP);
smbldap_set_mod(&mods,
LDAP_MOD_ADD,
"sambaSid",
dom_sid_str_buf(&group_sid, &buf));
smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
if (is_new_entry) {
char *escape_name;
DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
/* lets allocate a new groupid for this group */
if (!winbind_allocate_gid(&gid)) {
DEBUG (0, ("ldapsam_create_group: Unable to allocate a new group id: bailing out!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
gidstr = talloc_asprintf(tmp_ctx, "%u", (unsigned int)gid);
escape_name = escape_rdn_val_string_alloc(name);
if (!escape_name) {
DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", escape_name, lp_ldap_group_suffix(talloc_tos()));
SAFE_FREE(escape_name);
if (!gidstr || !dn) {
DEBUG (0, ("ldapsam_create_group: Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_POSIXGROUP);
smbldap_set_mod(&mods, LDAP_MOD_ADD, "cn", name);
smbldap_set_mod(&mods, LDAP_MOD_ADD, "gidNumber", gidstr);
}
smbldap_talloc_autofree_ldapmod(tmp_ctx, mods);
if (is_new_entry) {
rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
#if 0
if (rc == LDAP_OBJECT_CLASS_VIOLATION) {
/* This call may fail with rfc2307bis schema */
/* Retry adding a structural class */
smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", "????");
rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
}
#endif
} else {
rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
}
if (rc != LDAP_SUCCESS) {
DEBUG(0,("ldapsam_create_group: failed to create a new group [%s] (dn = %s)\n", name ,dn));
return NT_STATUS_UNSUCCESSFUL;
}
DEBUG(2,("ldapsam_create_group: added group [%s] in the LDAP database\n", name));
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_delete_dom_group(struct pdb_methods *my_methods, TALLOC_CTX *tmp_ctx, uint32_t rid)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
int num_result;
const char *dn;
char *gidstr;
char *filter;
struct dom_sid group_sid;
struct dom_sid_buf buf;
int rc;
/* get the group sid */
sid_compose(&group_sid, get_global_sam_sid(), rid);
filter = talloc_asprintf(tmp_ctx,
"(&(sambaSID=%s)"
"(objectClass="LDAP_OBJ_POSIXGROUP")"
"(objectClass="LDAP_OBJ_GROUPMAP"))",
dom_sid_str_buf(&group_sid, &buf));
if (filter == NULL) {
return NT_STATUS_NO_MEMORY;
}
rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
if (rc != LDAP_SUCCESS) {
DEBUG(1,("ldapsam_delete_dom_group: group search failed!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
smbldap_talloc_autofree_ldapmsg(tmp_ctx, result);
num_result = ldap_count_entries(priv2ld(ldap_state), result);
if (num_result == 0) {
DEBUG(1,("ldapsam_delete_dom_group: group not found!\n"));
return NT_STATUS_NO_SUCH_GROUP;
}
if (num_result > 1) {
DEBUG (0, ("ldapsam_delete_dom_group: More than one group with the same SID ?!\n"));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
entry = ldap_first_entry(priv2ld(ldap_state), result);
if (!entry) {
return NT_STATUS_UNSUCCESSFUL;
}
/* here it is, retrieve the dn for later use */
dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
if (!dn) {
DEBUG(0,("ldapsam_delete_dom_group: Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
if (!gidstr) {
DEBUG (0, ("ldapsam_delete_dom_group: Unable to find the group's gid!\n"));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
/* check no user have this group marked as primary group */
filter = talloc_asprintf(tmp_ctx,
"(&(gidNumber=%s)"
"(objectClass="LDAP_OBJ_POSIXACCOUNT")"
"(objectClass="LDAP_OBJ_SAMBASAMACCOUNT"))",
gidstr);
rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
if (rc != LDAP_SUCCESS) {
DEBUG(1,("ldapsam_delete_dom_group: accounts search failed!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
smbldap_talloc_autofree_ldapmsg(tmp_ctx, result);
num_result = ldap_count_entries(priv2ld(ldap_state), result);
if (num_result != 0) {
DEBUG(3,("ldapsam_delete_dom_group: Can't delete group, it is a primary group for %d users\n", num_result));
return NT_STATUS_MEMBERS_PRIMARY_GROUP;
}
rc = smbldap_delete(ldap_state->smbldap_state, dn);
if (rc != LDAP_SUCCESS) {
return NT_STATUS_UNSUCCESSFUL;
}
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_change_groupmem(struct pdb_methods *my_methods,
TALLOC_CTX *tmp_ctx,
uint32_t group_rid,
uint32_t member_rid,
int modop)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
LDAPMessage *entry = NULL;
LDAPMessage *result = NULL;
uint32_t num_result;
LDAPMod **mods = NULL;
char *filter;
char *uidstr;
const char *dn = NULL;
struct dom_sid group_sid;
struct dom_sid member_sid;
struct dom_sid_buf buf;
int rc;
int error = 0;
switch (modop) {
case LDAP_MOD_ADD:
DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)\n", member_rid, group_rid));
break;
case LDAP_MOD_DELETE:
DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)\n", member_rid, group_rid));
break;
default:
return NT_STATUS_UNSUCCESSFUL;
}
/* get member sid */
sid_compose(&member_sid, get_global_sam_sid(), member_rid);
/* get the group sid */
sid_compose(&group_sid, get_global_sam_sid(), group_rid);
filter = talloc_asprintf(tmp_ctx,
"(&(sambaSID=%s)"
"(objectClass="LDAP_OBJ_POSIXACCOUNT")"
"(objectClass="LDAP_OBJ_SAMBASAMACCOUNT"))",
dom_sid_str_buf(&member_sid, &buf));
if (filter == NULL) {
return NT_STATUS_NO_MEMORY;
}
/* get the member uid */
rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
if (rc != LDAP_SUCCESS) {
DEBUG(1,("ldapsam_change_groupmem: member search failed!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
smbldap_talloc_autofree_ldapmsg(tmp_ctx, result);
num_result = ldap_count_entries(priv2ld(ldap_state), result);
if (num_result == 0) {
DEBUG(1,("ldapsam_change_groupmem: member not found!\n"));
return NT_STATUS_NO_SUCH_MEMBER;
}
if (num_result > 1) {
DEBUG (0, ("ldapsam_change_groupmem: More than one account with the same SID ?!\n"));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
entry = ldap_first_entry(priv2ld(ldap_state), result);
if (!entry) {
return NT_STATUS_UNSUCCESSFUL;
}
if (modop == LDAP_MOD_DELETE) {
/* check if we are trying to remove the member from his primary group */
char *gidstr;
gid_t user_gid, group_gid;
gidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "gidNumber", tmp_ctx);
if (!gidstr) {
DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's gid!\n"));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
user_gid = smb_strtoul(gidstr, NULL, 10, &error, SMB_STR_STANDARD);
if (error != 0) {
DBG_ERR("Failed to convert user gid\n");
return NT_STATUS_UNSUCCESSFUL;
}
if (!sid_to_gid(&group_sid, &group_gid)) {
DEBUG (0, ("ldapsam_change_groupmem: Unable to get group gid from SID!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
if (user_gid == group_gid) {
DEBUG (3, ("ldapsam_change_groupmem: can't remove user from its own primary group!\n"));
return NT_STATUS_MEMBERS_PRIMARY_GROUP;
}
}
/* here it is, retrieve the uid for later use */
uidstr = smbldap_talloc_single_attribute(priv2ld(ldap_state), entry, "uid", tmp_ctx);
if (!uidstr) {
DEBUG (0, ("ldapsam_change_groupmem: Unable to find the member's name!\n"));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
filter = talloc_asprintf(tmp_ctx,
"(&(sambaSID=%s)"
"(objectClass="LDAP_OBJ_POSIXGROUP")"
"(objectClass="LDAP_OBJ_GROUPMAP"))",
dom_sid_str_buf(&group_sid, &buf));
/* get the group */
rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
if (rc != LDAP_SUCCESS) {
DEBUG(1,("ldapsam_change_groupmem: group search failed!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
smbldap_talloc_autofree_ldapmsg(tmp_ctx, result);
num_result = ldap_count_entries(priv2ld(ldap_state), result);
if (num_result == 0) {
DEBUG(1,("ldapsam_change_groupmem: group not found!\n"));
return NT_STATUS_NO_SUCH_GROUP;
}
if (num_result > 1) {
DEBUG (0, ("ldapsam_change_groupmem: More than one group with the same SID ?!\n"));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
entry = ldap_first_entry(priv2ld(ldap_state), result);
if (!entry) {
return NT_STATUS_UNSUCCESSFUL;
}
/* here it is, retrieve the dn for later use */
dn = smbldap_talloc_dn(tmp_ctx, priv2ld(ldap_state), entry);
if (!dn) {
DEBUG(0,("ldapsam_change_groupmem: Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
smbldap_set_mod(&mods, modop, "memberUid", uidstr);
smbldap_talloc_autofree_ldapmod(tmp_ctx, mods);
rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
if (rc != LDAP_SUCCESS) {
if (rc == LDAP_TYPE_OR_VALUE_EXISTS && modop == LDAP_MOD_ADD) {
DEBUG(1,("ldapsam_change_groupmem: member is already in group, add failed!\n"));
return NT_STATUS_MEMBER_IN_GROUP;
}
if (rc == LDAP_NO_SUCH_ATTRIBUTE && modop == LDAP_MOD_DELETE) {
DEBUG(1,("ldapsam_change_groupmem: member is not in group, delete failed!\n"));
return NT_STATUS_MEMBER_NOT_IN_GROUP;
}
return NT_STATUS_UNSUCCESSFUL;
}
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_add_groupmem(struct pdb_methods *my_methods,
TALLOC_CTX *tmp_ctx,
uint32_t group_rid,
uint32_t member_rid)
{
return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_ADD);
}
static NTSTATUS ldapsam_del_groupmem(struct pdb_methods *my_methods,
TALLOC_CTX *tmp_ctx,
uint32_t group_rid,
uint32_t member_rid)
{
return ldapsam_change_groupmem(my_methods, tmp_ctx, group_rid, member_rid, LDAP_MOD_DELETE);
}
static NTSTATUS ldapsam_set_primary_group(struct pdb_methods *my_methods,
TALLOC_CTX *mem_ctx,
struct samu *sampass)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
LDAPMessage *entry = NULL;
LDAPMessage *result = NULL;
uint32_t num_result;
LDAPMod **mods = NULL;
char *filter;
char *escape_username;
char *gidstr;
char *dn = NULL;
gid_t gid;
int rc;
DEBUG(0,("ldapsam_set_primary_group: Attempt to set primary group for user [%s]\n", pdb_get_username(sampass)));
if (!sid_to_gid(pdb_get_group_sid(sampass), &gid)) {
DEBUG(0,("ldapsam_set_primary_group: failed to retrieve gid from user's group SID!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
gidstr = talloc_asprintf(mem_ctx, "%u", (unsigned int)gid);
if (!gidstr) {
DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
return NT_STATUS_NO_MEMORY;
}
escape_username = escape_ldap_string(talloc_tos(),
pdb_get_username(sampass));
if (escape_username== NULL) {
return NT_STATUS_NO_MEMORY;
}
filter = talloc_asprintf(mem_ctx,
"(&(uid=%s)"
"(objectClass="LDAP_OBJ_POSIXACCOUNT")"
"(objectClass="LDAP_OBJ_SAMBASAMACCOUNT"))",
escape_username);
TALLOC_FREE(escape_username);
if (filter == NULL) {
return NT_STATUS_NO_MEMORY;
}
rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, NULL, &result);
if (rc != LDAP_SUCCESS) {
DEBUG(0,("ldapsam_set_primary_group: user search failed!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
smbldap_talloc_autofree_ldapmsg(mem_ctx, result);
num_result = ldap_count_entries(priv2ld(ldap_state), result);
if (num_result == 0) {
DEBUG(0,("ldapsam_set_primary_group: user not found!\n"));
return NT_STATUS_NO_SUCH_USER;
}
if (num_result > 1) {
DEBUG (0, ("ldapsam_set_primary_group: More than one user with name [%s] ?!\n", pdb_get_username(sampass)));
return NT_STATUS_INTERNAL_DB_CORRUPTION;
}
entry = ldap_first_entry(priv2ld(ldap_state), result);
if (!entry) {
return NT_STATUS_UNSUCCESSFUL;
}
/* retrieve the dn for later use */
dn = smbldap_talloc_dn(mem_ctx, priv2ld(ldap_state), entry);
if (!dn) {
DEBUG(0,("ldapsam_set_primary_group: Out of memory!\n"));
return NT_STATUS_NO_MEMORY;
}
/* remove the old one, and add the new one, this way we do not risk races */
smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "gidNumber", gidstr);
if (mods == NULL) {
TALLOC_FREE(dn);
return NT_STATUS_OK;
}
rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
TALLOC_FREE(dn);
if (rc != LDAP_SUCCESS) {
DEBUG(0,("ldapsam_set_primary_group: failed to modify [%s] primary group to [%s]\n",
pdb_get_username(sampass), gidstr));
return NT_STATUS_UNSUCCESSFUL;
}
flush_pwnam_cache();
return NT_STATUS_OK;
}
/**********************************************************************
trusted domains functions
*********************************************************************/
static char *trusteddom_dn(struct ldapsam_privates *ldap_state,
const char *domain)
{
return talloc_asprintf(talloc_tos(), "sambaDomainName=%s,%s", domain,
ldap_state->domain_dn);
}
static bool get_trusteddom_pw_int(struct ldapsam_privates *ldap_state,
TALLOC_CTX *mem_ctx,
const char *domain, LDAPMessage **entry)
{
int rc;
char *filter;
int scope = LDAP_SCOPE_SUBTREE;
const char **attrs = NULL; /* NULL: get all attrs */
int attrsonly = 0; /* 0: return values too */
LDAPMessage *result = NULL;
char *trusted_dn;
uint32_t num_result;
filter = talloc_asprintf(talloc_tos(),
"(&(objectClass="LDAP_OBJ_TRUSTDOM_PASSWORD")(sambaDomainName=%s))",
domain);
trusted_dn = trusteddom_dn(ldap_state, domain);
if (trusted_dn == NULL) {
return False;
}
rc = smbldap_search(ldap_state->smbldap_state, trusted_dn, scope,
filter, attrs, attrsonly, &result);
if (result != NULL) {
smbldap_talloc_autofree_ldapmsg(mem_ctx, result);
}
if (rc == LDAP_NO_SUCH_OBJECT) {
*entry = NULL;
return True;
}
if (rc != LDAP_SUCCESS) {
return False;
}
num_result = ldap_count_entries(priv2ld(ldap_state), result);
if (num_result > 1) {
DEBUG(1, ("ldapsam_get_trusteddom_pw: more than one "
"%s object for domain '%s'?!\n",
LDAP_OBJ_TRUSTDOM_PASSWORD, domain));
return False;
}
if (num_result == 0) {
DEBUG(1, ("ldapsam_get_trusteddom_pw: no "
"%s object for domain %s.\n",
LDAP_OBJ_TRUSTDOM_PASSWORD, domain));
*entry = NULL;
} else {
*entry = ldap_first_entry(priv2ld(ldap_state), result);
}
return True;
}
static bool ldapsam_get_trusteddom_pw(struct pdb_methods *methods,
const char *domain,
char** pwd,
struct dom_sid *sid,
time_t *pass_last_set_time)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
LDAPMessage *entry = NULL;
DEBUG(10, ("ldapsam_get_trusteddom_pw called for domain %s\n", domain));
if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry) ||
(entry == NULL))
{
return False;
}
/* password */
if (pwd != NULL) {
char *pwd_str;
pwd_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
entry, "sambaClearTextPassword", talloc_tos());
if (pwd_str == NULL) {
return False;
}
/* trusteddom_pw routines do not use talloc yet... */
*pwd = SMB_STRDUP(pwd_str);
if (*pwd == NULL) {
return False;
}
}
/* last change time */
if (pass_last_set_time != NULL) {
char *time_str;
time_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
entry, "sambaPwdLastSet", talloc_tos());
if (time_str == NULL) {
return False;
}
*pass_last_set_time = (time_t)atol(time_str);
}
/* domain sid */
if (sid != NULL) {
char *sid_str;
struct dom_sid dom_sid;
sid_str = smbldap_talloc_single_attribute(priv2ld(ldap_state),
entry, "sambaSID",
talloc_tos());
if (sid_str == NULL) {
return False;
}
if (!string_to_sid(&dom_sid, sid_str)) {
return False;
}
sid_copy(sid, &dom_sid);
}
return True;
}
static bool ldapsam_set_trusteddom_pw(struct pdb_methods *methods,
const char* domain,
const char* pwd,
const struct dom_sid *sid)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
LDAPMessage *entry = NULL;
LDAPMod **mods = NULL;
char *prev_pwd = NULL;
char *trusted_dn = NULL;
struct dom_sid_buf buf;
int rc;
DEBUG(10, ("ldapsam_set_trusteddom_pw called for domain %s\n", domain));
/*
* get the current entry (if there is one) in order to put the
* current password into the previous password attribute
*/
if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry)) {
return False;
}
mods = NULL;
smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "objectClass",
LDAP_OBJ_TRUSTDOM_PASSWORD);
smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaDomainName",
domain);
smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaSID",
dom_sid_str_buf(sid, &buf));
smbldap_make_mod(priv2ld(ldap_state), entry, &mods, "sambaPwdLastSet",
talloc_asprintf(talloc_tos(), "%li", (long int)time(NULL)));
smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
"sambaClearTextPassword", pwd);
if (entry != NULL) {
prev_pwd = smbldap_talloc_single_attribute(priv2ld(ldap_state),
entry, "sambaClearTextPassword", talloc_tos());
if (prev_pwd != NULL) {
smbldap_make_mod(priv2ld(ldap_state), entry, &mods,
"sambaPreviousClearTextPassword",
prev_pwd);
}
}
smbldap_talloc_autofree_ldapmod(talloc_tos(), mods);
trusted_dn = trusteddom_dn(ldap_state, domain);
if (trusted_dn == NULL) {
return False;
}
if (entry == NULL) {
rc = smbldap_add(ldap_state->smbldap_state, trusted_dn, mods);
} else {
rc = smbldap_modify(ldap_state->smbldap_state, trusted_dn, mods);
}
if (rc != LDAP_SUCCESS) {
DEBUG(1, ("error writing trusted domain password!\n"));
return False;
}
return True;
}
static bool ldapsam_del_trusteddom_pw(struct pdb_methods *methods,
const char *domain)
{
int rc;
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
LDAPMessage *entry = NULL;
const char *trusted_dn;
if (!get_trusteddom_pw_int(ldap_state, talloc_tos(), domain, &entry)) {
return False;
}
if (entry == NULL) {
DEBUG(5, ("ldapsam_del_trusteddom_pw: no such trusted domain: "
"%s\n", domain));
return True;
}
trusted_dn = smbldap_talloc_dn(talloc_tos(), priv2ld(ldap_state),
entry);
if (trusted_dn == NULL) {
DEBUG(0,("ldapsam_del_trusteddom_pw: Out of memory!\n"));
return False;
}
rc = smbldap_delete(ldap_state->smbldap_state, trusted_dn);
if (rc != LDAP_SUCCESS) {
return False;
}
return True;
}
static NTSTATUS ldapsam_enum_trusteddoms(struct pdb_methods *methods,
TALLOC_CTX *mem_ctx,
uint32_t *num_domains,
struct trustdom_info ***domains)
{
int rc;
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
const char *filter;
int scope = LDAP_SCOPE_SUBTREE;
const char *attrs[] = { "sambaDomainName", "sambaSID", NULL };
int attrsonly = 0; /* 0: return values too */
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
filter = "(objectClass="LDAP_OBJ_TRUSTDOM_PASSWORD")";
rc = smbldap_search(ldap_state->smbldap_state,
ldap_state->domain_dn,
scope,
filter,
attrs,
attrsonly,
&result);
if (result != NULL) {
smbldap_talloc_autofree_ldapmsg(mem_ctx, result);
}
if (rc != LDAP_SUCCESS) {
return NT_STATUS_UNSUCCESSFUL;
}
*num_domains = 0;
if (!(*domains = talloc_array(mem_ctx, struct trustdom_info *, 1))) {
DEBUG(1, ("talloc failed\n"));
return NT_STATUS_NO_MEMORY;
}
for (entry = ldap_first_entry(priv2ld(ldap_state), result);
entry != NULL;
entry = ldap_next_entry(priv2ld(ldap_state), entry))
{
char *dom_name, *dom_sid_str;
struct trustdom_info *dom_info;
dom_info = talloc(*domains, struct trustdom_info);
if (dom_info == NULL) {
DEBUG(1, ("talloc failed\n"));
return NT_STATUS_NO_MEMORY;
}
dom_name = smbldap_talloc_single_attribute(priv2ld(ldap_state),
entry,
"sambaDomainName",
talloc_tos());
if (dom_name == NULL) {
DEBUG(1, ("talloc failed\n"));
return NT_STATUS_NO_MEMORY;
}
dom_info->name = dom_name;
dom_sid_str = smbldap_talloc_single_attribute(
priv2ld(ldap_state), entry, "sambaSID",
talloc_tos());
if (dom_sid_str == NULL) {
DEBUG(1, ("talloc failed\n"));
return NT_STATUS_NO_MEMORY;
}
if (!string_to_sid(&dom_info->sid, dom_sid_str)) {
DEBUG(1, ("Error calling string_to_sid on SID %s\n",
dom_sid_str));
return NT_STATUS_UNSUCCESSFUL;
}
ADD_TO_ARRAY(*domains, struct trustdom_info *, dom_info,
domains, num_domains);
if (*domains == NULL) {
DEBUG(1, ("talloc failed\n"));
return NT_STATUS_NO_MEMORY;
}
}
DEBUG(5, ("ldapsam_enum_trusteddoms: got %d domains\n", *num_domains));
return NT_STATUS_OK;
}
/**********************************************************************
Housekeeping
*********************************************************************/
static void free_private_data(void **vp)
{
struct ldapsam_privates **ldap_state = (struct ldapsam_privates **)vp;
smbldap_free_struct(&(*ldap_state)->smbldap_state);
if ((*ldap_state)->result != NULL) {
ldap_msgfree((*ldap_state)->result);
(*ldap_state)->result = NULL;
}
if ((*ldap_state)->domain_dn != NULL) {
SAFE_FREE((*ldap_state)->domain_dn);
}
*ldap_state = NULL;
/* No need to free any further, as it is talloc()ed */
}
/*********************************************************************
Intitalise the parts of the pdb_methods structure that are common to
all pdb_ldap modes
*********************************************************************/
static NTSTATUS pdb_init_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
{
NTSTATUS nt_status;
struct ldapsam_privates *ldap_state;
char *bind_dn = NULL;
char *bind_secret = NULL;
if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
return nt_status;
}
(*pdb_method)->name = "ldapsam";
(*pdb_method)->getsampwnam = ldapsam_getsampwnam;
(*pdb_method)->getsampwsid = ldapsam_getsampwsid;
(*pdb_method)->add_sam_account = ldapsam_add_sam_account;
(*pdb_method)->update_sam_account = ldapsam_update_sam_account;
(*pdb_method)->delete_sam_account = ldapsam_delete_sam_account;
(*pdb_method)->rename_sam_account = ldapsam_rename_sam_account;
(*pdb_method)->getgrsid = ldapsam_getgrsid;
(*pdb_method)->getgrgid = ldapsam_getgrgid;
(*pdb_method)->getgrnam = ldapsam_getgrnam;
(*pdb_method)->add_group_mapping_entry = ldapsam_add_group_mapping_entry;
(*pdb_method)->update_group_mapping_entry = ldapsam_update_group_mapping_entry;
(*pdb_method)->delete_group_mapping_entry = ldapsam_delete_group_mapping_entry;
(*pdb_method)->enum_group_mapping = ldapsam_enum_group_mapping;
(*pdb_method)->get_account_policy = ldapsam_get_account_policy;
(*pdb_method)->set_account_policy = ldapsam_set_account_policy;
(*pdb_method)->get_seq_num = ldapsam_get_seq_num;
(*pdb_method)->capabilities = ldapsam_capabilities;
(*pdb_method)->new_rid = ldapsam_new_rid;
(*pdb_method)->get_trusteddom_pw = ldapsam_get_trusteddom_pw;
(*pdb_method)->set_trusteddom_pw = ldapsam_set_trusteddom_pw;
(*pdb_method)->del_trusteddom_pw = ldapsam_del_trusteddom_pw;
(*pdb_method)->enum_trusteddoms = ldapsam_enum_trusteddoms;
/* TODO: Setup private data and free */
if ( !(ldap_state = talloc_zero(*pdb_method, struct ldapsam_privates)) ) {
DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
return NT_STATUS_NO_MEMORY;
}
if (!fetch_ldap_pw(&bind_dn, &bind_secret)) {
DEBUG(0, ("pdb_init_ldapsam_common: Failed to retrieve LDAP password from secrets.tdb\n"));
return NT_STATUS_NO_MEMORY;
}
nt_status = smbldap_init(*pdb_method, pdb_get_tevent_context(),
location, false, bind_dn, bind_secret,
&ldap_state->smbldap_state);
BURN_FREE_STR(bind_secret);
SAFE_FREE(bind_dn);
if ( !NT_STATUS_IS_OK(nt_status) ) {
return nt_status;
}
if ( !(ldap_state->domain_name = talloc_strdup(*pdb_method, get_global_sam_name()) ) ) {
return NT_STATUS_NO_MEMORY;
}
(*pdb_method)->private_data = ldap_state;
(*pdb_method)->free_private_data = free_private_data;
return NT_STATUS_OK;
}
static bool ldapsam_is_responsible_for_wellknown(struct pdb_methods *m)
{
return true;
}
/**********************************************************************
Initialise the normal mode for pdb_ldap
*********************************************************************/
NTSTATUS pdb_ldapsam_init_common(struct pdb_methods **pdb_method,
const char *location)
{
NTSTATUS nt_status;
struct ldapsam_privates *ldap_state = NULL;
uint32_t alg_rid_base;
char *alg_rid_base_string = NULL;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
struct dom_sid ldap_domain_sid;
struct dom_sid secrets_domain_sid;
char *domain_sid_string = NULL;
char *dn = NULL;
char *uri = talloc_strdup( NULL, location );
trim_char( uri, '\"', '\"' );
nt_status = pdb_init_ldapsam_common(pdb_method, uri);
TALLOC_FREE(uri);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
(*pdb_method)->name = "ldapsam";
(*pdb_method)->add_aliasmem = ldapsam_add_aliasmem;
(*pdb_method)->del_aliasmem = ldapsam_del_aliasmem;
(*pdb_method)->enum_aliasmem = ldapsam_enum_aliasmem;
(*pdb_method)->enum_alias_memberships = ldapsam_alias_memberships;
(*pdb_method)->search_users = ldapsam_search_users;
(*pdb_method)->search_groups = ldapsam_search_groups;
(*pdb_method)->search_aliases = ldapsam_search_aliases;
(*pdb_method)->is_responsible_for_wellknown =
ldapsam_is_responsible_for_wellknown;
if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
(*pdb_method)->enum_group_members = ldapsam_enum_group_members;
(*pdb_method)->enum_group_memberships =
ldapsam_enum_group_memberships;
(*pdb_method)->lookup_rids = ldapsam_lookup_rids;
(*pdb_method)->sid_to_id = ldapsam_sid_to_id;
(*pdb_method)->id_to_sid = ldapsam_id_to_sid;
if (lp_parm_bool(-1, "ldapsam", "editposix", False)) {
(*pdb_method)->create_user = ldapsam_create_user;
(*pdb_method)->delete_user = ldapsam_delete_user;
(*pdb_method)->create_dom_group = ldapsam_create_dom_group;
(*pdb_method)->delete_dom_group = ldapsam_delete_dom_group;
(*pdb_method)->add_groupmem = ldapsam_add_groupmem;
(*pdb_method)->del_groupmem = ldapsam_del_groupmem;
(*pdb_method)->set_unix_primary_group = ldapsam_set_primary_group;
}
}
ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
ldap_state->schema_ver = SCHEMAVER_SAMBASAMACCOUNT;
/* Try to setup the Domain Name, Domain SID, algorithmic rid base */
nt_status = smbldap_search_domain_info(ldap_state->smbldap_state,
&result,
ldap_state->domain_name, True);
if ( !NT_STATUS_IS_OK(nt_status) ) {
DEBUG(0, ("pdb_init_ldapsam: WARNING: Could not get domain "
"info, nor add one to the domain. "
"We cannot work reliably without it.\n"));
return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
}
/* Given that the above might fail, everything below this must be
* optional */
entry = ldap_first_entry(smbldap_get_ldap(ldap_state->smbldap_state),
result);
if (!entry) {
DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
"entry\n"));
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
dn = smbldap_talloc_dn(talloc_tos(),
smbldap_get_ldap(ldap_state->smbldap_state),
entry);
if (!dn) {
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
ldap_state->domain_dn = smb_xstrdup(dn);
TALLOC_FREE(dn);
domain_sid_string = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_USER_SID),
talloc_tos());
if (domain_sid_string) {
bool found_sid;
if (!string_to_sid(&ldap_domain_sid, domain_sid_string)) {
DEBUG(1, ("pdb_init_ldapsam: SID [%s] could not be "
"read as a valid SID\n", domain_sid_string));
ldap_msgfree(result);
TALLOC_FREE(domain_sid_string);
return NT_STATUS_INVALID_PARAMETER;
}
found_sid = PDB_secrets_fetch_domain_sid(ldap_state->domain_name,
&secrets_domain_sid);
if (!found_sid || !dom_sid_equal(&secrets_domain_sid,
&ldap_domain_sid)) {
struct dom_sid_buf buf1, buf2;
DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
"%s based on pdb_ldap results %s -> %s\n",
ldap_state->domain_name,
dom_sid_str_buf(&secrets_domain_sid, &buf1),
dom_sid_str_buf(&ldap_domain_sid, &buf2)));
/* reset secrets.tdb sid */
PDB_secrets_store_domain_sid(ldap_state->domain_name,
&ldap_domain_sid);
DEBUG(1, ("New global sam SID: %s\n",
dom_sid_str_buf(get_global_sam_sid(),
&buf1)));
}
sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
TALLOC_FREE(domain_sid_string);
}
alg_rid_base_string = smbldap_talloc_single_attribute(
smbldap_get_ldap(ldap_state->smbldap_state),
entry,
get_attr_key2string( dominfo_attr_list,
LDAP_ATTR_ALGORITHMIC_RID_BASE ),
talloc_tos());
if (alg_rid_base_string) {
alg_rid_base = (uint32_t)atol(alg_rid_base_string);
if (alg_rid_base != algorithmic_rid_base()) {
DEBUG(0, ("The value of 'algorithmic RID base' has "
"changed since the LDAP\n"
"database was initialised. Aborting. \n"));
ldap_msgfree(result);
TALLOC_FREE(alg_rid_base_string);
return NT_STATUS_UNSUCCESSFUL;
}
TALLOC_FREE(alg_rid_base_string);
}
ldap_msgfree(result);
return NT_STATUS_OK;
}
NTSTATUS pdb_ldapsam_init(TALLOC_CTX *ctx)
{
NTSTATUS nt_status;
nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION,
"ldapsam",
pdb_ldapsam_init_common);
if (!NT_STATUS_IS_OK(nt_status)) {
return nt_status;
}
/* Let pdb_nds register backends */
pdb_nds_init(ctx);
return NT_STATUS_OK;
}
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