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samba-mirror/source3/passdb/pdb_ldap.c
Andrew Bartlett adb3a63943 r20402: Fix spelling: samba bug #4292 debian #402392 
(This used to be commit e43aa4e03d)
2007-10-10 12:16:46 -05:00

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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 2 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, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* 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"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_PASSDB
#include <lber.h>
#include <ldap.h>
/*
* Work around versions of the LDAP client libs that don't have the OIDs
* defined, or have them defined under the old name.
* This functionality is really a factor of the server, not the client
*
*/
#if defined(LDAP_EXOP_X_MODIFY_PASSWD) && !defined(LDAP_EXOP_MODIFY_PASSWD)
#define LDAP_EXOP_MODIFY_PASSWD LDAP_EXOP_X_MODIFY_PASSWD
#elif !defined(LDAP_EXOP_MODIFY_PASSWD)
#define LDAP_EXOP_MODIFY_PASSWD "1.3.6.1.4.1.4203.1.11.1"
#endif
#if defined(LDAP_EXOP_X_MODIFY_PASSWD_ID) && !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
#define LDAP_TAG_EXOP_MODIFY_PASSWD_ID LDAP_EXOP_X_MODIFY_PASSWD_ID
#elif !defined(LDAP_EXOP_MODIFY_PASSWD_ID)
#define LDAP_TAG_EXOP_MODIFY_PASSWD_ID ((ber_tag_t) 0x80U)
#endif
#if defined(LDAP_EXOP_X_MODIFY_PASSWD_NEW) && !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
#define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW LDAP_EXOP_X_MODIFY_PASSWD_NEW
#elif !defined(LDAP_EXOP_MODIFY_PASSWD_NEW)
#define LDAP_TAG_EXOP_MODIFY_PASSWD_NEW ((ber_tag_t) 0x82U)
#endif
#include "smbldap.h"
/**********************************************************************
Simple helper function to make stuff better readable
**********************************************************************/
static LDAP *priv2ld(struct ldapsam_privates *priv)
{
return priv->smbldap_state->ldap_struct;
}
/**********************************************************************
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_SAMBAACCOUNT:
return get_attr_key2string( attrib_map_v22, key );
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_SAMBAACCOUNT:
return get_attr_list( mem_ctx, attrib_map_v22 );
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_SAMBAACCOUNT:
return get_attr_list( mem_ctx,
attrib_map_to_delete_v22 );
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 )
{
static fstring objclass_filter;
switch( schema_ver ) {
case SCHEMAVER_SAMBAACCOUNT:
fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBAACCOUNT );
break;
case SCHEMAVER_SAMBASAMACCOUNT:
fstr_sprintf( objclass_filter, "(objectclass=%s)", LDAP_OBJ_SAMBASAMACCOUNT );
break;
default:
DEBUG(0,("get_objclass_filter: Invalid schema version specified!\n"));
break;
}
return objclass_filter;
}
/*****************************************************************
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;
pstring suffix;
fstring tok;
const char *p;
const char **attrs;
/* Unfortunatly 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(ldap_state->smbldap_state->ldap_struct, 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;
pstr_sprintf( suffix, "cn=syncrepl%d,%s", rid, lp_ldap_suffix());
} else {
/* provider contextCSN */
/* 20050126161620Z#000009#00#000000 */
attrs[0] = talloc_strdup(mem_ctx, "contextCSN");
attrs[1] = NULL;
pstr_sprintf( suffix, "cn=ldapsync,%s", lp_ldap_suffix());
}
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(ldap_state->smbldap_state->ldap_struct, 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(ldap_state->smbldap_state->ldap_struct, msg);
if (entry == NULL) {
DEBUG(3,("ldapsam_get_seq_num: Could not retrieve entry\n"));
goto done;
}
values = ldap_get_values(ldap_state->smbldap_state->ldap_struct, 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(&p, tok, "#", sizeof(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)
{
pstring filter;
char *escape_user = escape_ldap_string_alloc(user);
if (!escape_user) {
return LDAP_NO_MEMORY;
}
/*
* in the filter expression, replace %u with the real name
* so in ldap filter, %u MUST exist :-)
*/
pstr_sprintf(filter, "(&%s%s)", "(uid=%u)",
get_objclass_filter(ldap_state->schema_ver));
/*
* have to use this here because $ is filtered out
* in pstring_sub
*/
all_string_sub(filter, "%u", escape_user, sizeof(pstring));
SAFE_FREE(escape_user);
return smbldap_search_suffix(ldap_state->smbldap_state, filter, attr, result);
}
/*******************************************************************
Run the search by rid.
******************************************************************/
static int ldapsam_search_suffix_by_rid (struct ldapsam_privates *ldap_state,
uint32 rid, LDAPMessage ** result,
const char **attr)
{
pstring filter;
int rc;
pstr_sprintf(filter, "(&(rid=%i)%s)", rid,
get_objclass_filter(ldap_state->schema_ver));
rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, attr, result);
return rc;
}
/*******************************************************************
Run the search by SID.
******************************************************************/
static int ldapsam_search_suffix_by_sid (struct ldapsam_privates *ldap_state,
const DOM_SID *sid, LDAPMessage ** result,
const char **attr)
{
pstring filter;
int rc;
fstring sid_string;
pstr_sprintf(filter, "(&(%s=%s)%s)",
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
sid_to_string(sid_string, sid),
get_objclass_filter(ldap_state->schema_ver));
rc = smbldap_search_suffix(ldap_state->smbldap_state, filter, attr, result);
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);
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)
{
pstring temp;
struct tm tm;
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver,LDAP_ATTR_MOD_TIMESTAMP),
temp))
return (time_t) 0;
strptime(temp, "%Y%m%d%H%M%SZ", &tm);
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,
pass_must_change_time,
ldap_entry_time,
bad_password_time;
pstring username,
domain,
nt_username,
fullname,
homedir,
dir_drive,
logon_script,
profile_path,
acct_desc,
workstations;
char munged_dial[2048];
uint32 user_rid;
uint8 smblmpwd[LM_HASH_LEN],
smbntpwd[NT_HASH_LEN];
BOOL use_samba_attrs = True;
uint32 acct_ctrl = 0;
uint16 logon_divs;
uint16 bad_password_count = 0,
logon_count = 0;
uint32 hours_len;
uint8 hours[MAX_HOURS_LEN];
pstring temp;
LOGIN_CACHE *cache_entry = NULL;
uint32 pwHistLen;
pstring tmpstring;
BOOL expand_explicit = lp_passdb_expand_explicit();
/*
* do a little initialization
*/
username[0] = '\0';
domain[0] = '\0';
nt_username[0] = '\0';
fullname[0] = '\0';
homedir[0] = '\0';
dir_drive[0] = '\0';
logon_script[0] = '\0';
profile_path[0] = '\0';
acct_desc[0] = '\0';
munged_dial[0] = '\0';
workstations[0] = '\0';
if (sampass == NULL || ldap_state == NULL || entry == NULL) {
DEBUG(0, ("init_sam_from_ldap: NULL parameters found!\n"));
return False;
}
if (priv2ld(ldap_state) == NULL) {
DEBUG(0, ("init_sam_from_ldap: ldap_state->smbldap_state->"
"ldap_struct is NULL!\n"));
return False;
}
if (!smbldap_get_single_pstring(priv2ld(ldap_state), entry, "uid",
username)) {
DEBUG(1, ("init_sam_from_ldap: No uid attribute found for "
"this user!\n"));
return False;
}
DEBUG(2, ("init_sam_from_ldap: Entry found for user: %s\n", username));
pstrcpy(nt_username, username);
pstrcpy(domain, ldap_state->domain_name);
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 (smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID), temp)) {
pdb_set_user_sid_from_string(sampass, temp, PDB_SET);
}
} else {
if (smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID), temp)) {
user_rid = (uint32)atol(temp);
pdb_set_user_sid_from_rid(sampass, user_rid, PDB_SET);
}
}
if (pdb_get_init_flags(sampass,PDB_USERSID) == PDB_DEFAULT) {
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;
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET), temp)) {
/* leave as default */
} else {
pass_last_set_time = (time_t) atol(temp);
pdb_set_pass_last_set_time(sampass, pass_last_set_time, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp)) {
/* leave as default */
} else {
logon_time = (time_t) atol(temp);
pdb_set_logon_time(sampass, logon_time, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp)) {
/* leave as default */
} else {
logoff_time = (time_t) atol(temp);
pdb_set_logoff_time(sampass, logoff_time, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp)) {
/* leave as default */
} else {
kickoff_time = (time_t) atol(temp);
pdb_set_kickoff_time(sampass, kickoff_time, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp)) {
/* leave as default */
} else {
pass_can_change_time = (time_t) atol(temp);
pdb_set_pass_can_change_time(sampass, pass_can_change_time, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), temp)) {
/* leave as default */
} else {
pass_must_change_time = (time_t) atol(temp);
pdb_set_pass_must_change_time(sampass, pass_must_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'
*/
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DISPLAY_NAME), fullname)) {
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_CN), fullname)) {
/* leave as default */
} else {
pdb_set_fullname(sampass, fullname, PDB_SET);
}
} else {
pdb_set_fullname(sampass, fullname, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_DRIVE), dir_drive))
{
pdb_set_dir_drive( sampass, lp_logon_drive(), PDB_DEFAULT );
} else {
pdb_set_dir_drive(sampass, dir_drive, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_HOME_PATH), homedir))
{
pdb_set_homedir( sampass,
talloc_sub_basic(sampass, username, domain,
lp_logon_home()),
PDB_DEFAULT );
} else {
pstrcpy( tmpstring, homedir );
if (expand_explicit) {
standard_sub_basic( username, domain, tmpstring,
sizeof(tmpstring) );
}
pdb_set_homedir(sampass, tmpstring, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_SCRIPT), logon_script))
{
pdb_set_logon_script( sampass,
talloc_sub_basic(sampass, username, domain,
lp_logon_script()),
PDB_DEFAULT );
} else {
pstrcpy( tmpstring, logon_script );
if (expand_explicit) {
standard_sub_basic( username, domain, tmpstring,
sizeof(tmpstring) );
}
pdb_set_logon_script(sampass, tmpstring, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH), profile_path))
{
pdb_set_profile_path( sampass,
talloc_sub_basic( sampass, username, domain,
lp_logon_path()),
PDB_DEFAULT );
} else {
pstrcpy( tmpstring, profile_path );
if (expand_explicit) {
standard_sub_basic( username, domain, tmpstring,
sizeof(tmpstring) );
}
pdb_set_profile_path(sampass, tmpstring, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_DESC), acct_desc))
{
/* leave as default */
} else {
pdb_set_acct_desc(sampass, acct_desc, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_WKS), workstations)) {
/* leave as default */;
} else {
pdb_set_workstations(sampass, workstations, PDB_SET);
}
if (!smbldap_get_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_MUNGED_DIAL), munged_dial, sizeof(munged_dial))) {
/* leave as default */;
} else {
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_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
if (user_dn != NULL) {
DEBUG(3, ("init_sam_from_ldap: smbldap_get_dn(%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)) {
SAFE_FREE(user_dn);
return False;
}
ZERO_STRUCT(smblmpwd);
if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET)) {
SAFE_FREE(user_dn);
return False;
}
ZERO_STRUCT(smbntpwd);
use_samba_attrs = False;
}
SAFE_FREE(user_dn);
} else {
DEBUG(0, ("init_sam_from_ldap: failed to get user_dn for '%s'\n", username));
}
}
if (use_samba_attrs) {
if (!smbldap_get_single_pstring (ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW), temp)) {
/* leave as default */
} else {
pdb_gethexpwd(temp, smblmpwd);
memset((char *)temp, '\0', strlen(temp)+1);
if (!pdb_set_lanman_passwd(sampass, smblmpwd, PDB_SET))
return False;
ZERO_STRUCT(smblmpwd);
}
if (!smbldap_get_single_pstring (ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW), temp)) {
/* leave as default */
} else {
pdb_gethexpwd(temp, smbntpwd);
memset((char *)temp, '\0', strlen(temp)+1);
if (!pdb_set_nt_passwd(sampass, smbntpwd, PDB_SET))
return False;
ZERO_STRUCT(smbntpwd);
}
}
pwHistLen = 0;
pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
if (pwHistLen > 0){
uint8 *pwhist = NULL;
int i;
char history_string[MAX_PW_HISTORY_LEN*64];
pwHistLen = MIN(pwHistLen, MAX_PW_HISTORY_LEN);
if ((pwhist = SMB_MALLOC_ARRAY(uint8, pwHistLen * PW_HISTORY_ENTRY_LEN)) == NULL){
DEBUG(0, ("init_sam_from_ldap: malloc failed!\n"));
return False;
}
memset(pwhist, '\0', pwHistLen * PW_HISTORY_ENTRY_LEN);
if (!smbldap_get_single_attribute(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
history_string, sizeof(history_string))) {
/* leave as default - zeros */
} else {
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(0,("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)){
SAFE_FREE(pwhist);
return False;
}
SAFE_FREE(pwhist);
}
if (!smbldap_get_single_pstring (ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_ACB_INFO), temp)) {
acct_ctrl |= ACB_NORMAL;
} else {
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);
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_BAD_PASSWORD_COUNT), temp)) {
/* leave as default */
} else {
bad_password_count = (uint32) atol(temp);
pdb_set_bad_password_count(sampass, bad_password_count, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_BAD_PASSWORD_TIME), temp)) {
/* leave as default */
} else {
bad_password_time = (time_t) atol(temp);
pdb_set_bad_password_time(sampass, bad_password_time, PDB_SET);
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_COUNT), temp)) {
/* leave as default */
} else {
logon_count = (uint32) atol(temp);
pdb_set_logon_count(sampass, logon_count, PDB_SET);
}
/* pdb_set_unknown_6(sampass, unknown6, PDB_SET); */
if(!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_HOURS), temp)) {
/* leave as default */
} else {
pdb_gethexhours(temp, hours);
memset((char *)temp, '\0', strlen(temp) +1);
pdb_set_hours(sampass, hours, PDB_SET);
ZERO_STRUCT(hours);
}
if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
if (smbldap_get_single_pstring(priv2ld(ldap_state), entry,
"uidNumber", temp)) {
/* We've got a uid, feed the cache */
uid_t uid = strtoul(temp, NULL, 10);
store_uid_sid_cache(pdb_get_user_sid(sampass), uid);
}
}
/* check the timestamp of the cache vs ldap entry */
if (!(ldap_entry_time = ldapsam_get_entry_timestamp(ldap_state,
entry)))
return True;
/* see if we have newer updates */
if (!(cache_entry = login_cache_read(sampass))) {
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)));
return True;
}
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);
}
SAFE_FREE(cache_entry);
return True;
}
/**********************************************************************
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))
{
pstring temp;
uint32 rid;
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(ldap_state->smbldap_state->ldap_struct, existing, mods,
"uid", pdb_get_username(sampass));
if (ldap_state->is_nds_ldap) {
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
"cn", pdb_get_username(sampass));
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, 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)) {
fstring sid_string;
const DOM_SID *user_sid = pdb_get_user_sid(sampass);
switch ( ldap_state->schema_ver ) {
case SCHEMAVER_SAMBAACCOUNT:
if (!sid_peek_check_rid(&ldap_state->domain_sid, user_sid, &rid)) {
DEBUG(1, ("init_ldap_from_sam: User's SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
sid_string_static(user_sid),
sid_string_static(&ldap_state->domain_sid)));
return False;
}
slprintf(temp, sizeof(temp) - 1, "%i", rid);
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_RID),
temp);
break;
case SCHEMAVER_SAMBASAMACCOUNT:
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
sid_to_string(sid_string, user_sid));
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)) {
fstring sid_string;
const DOM_SID *group_sid = pdb_get_group_sid(sampass);
switch ( ldap_state->schema_ver ) {
case SCHEMAVER_SAMBAACCOUNT:
if (!sid_peek_check_rid(&ldap_state->domain_sid, group_sid, &rid)) {
DEBUG(1, ("init_ldap_from_sam: User's Primary Group SID (%s) is not for this domain (%s), cannot add to LDAP!\n",
sid_string_static(group_sid),
sid_string_static(&ldap_state->domain_sid)));
return False;
}
slprintf(temp, sizeof(temp) - 1, "%i", rid);
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_PRIMARY_GROUP_RID), temp);
break;
case SCHEMAVER_SAMBASAMACCOUNT:
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_PRIMARY_GROUP_SID), sid_to_string(sid_string, group_sid));
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(ldap_state->smbldap_state->ldap_struct, 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(ldap_state->smbldap_state->ldap_struct, 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(ldap_state->smbldap_state->ldap_struct, 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(ldap_state->smbldap_state->ldap_struct, 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(ldap_state->smbldap_state->ldap_struct, 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(ldap_state->smbldap_state->ldap_struct, 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(ldap_state->smbldap_state->ldap_struct, 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(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PROFILE_PATH),
pdb_get_profile_path(sampass));
slprintf(temp, sizeof(temp) - 1, "%li", pdb_get_logon_time(sampass));
if (need_update(sampass, PDB_LOGONTIME))
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGON_TIME), temp);
slprintf(temp, sizeof(temp) - 1, "%li", pdb_get_logoff_time(sampass));
if (need_update(sampass, PDB_LOGOFFTIME))
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LOGOFF_TIME), temp);
slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_kickoff_time(sampass));
if (need_update(sampass, PDB_KICKOFFTIME))
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_KICKOFF_TIME), temp);
slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_pass_can_change_time_noncalc(sampass));
if (need_update(sampass, PDB_CANCHANGETIME))
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_CAN_CHANGE), temp);
slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_pass_must_change_time(sampass));
if (need_update(sampass, PDB_MUSTCHANGETIME))
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_MUST_CHANGE), 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) {
pdb_sethexpwd(temp, lm_pw,
pdb_get_acct_ctrl(sampass));
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_LMPW),
temp);
} else {
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, 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) {
pdb_sethexpwd(temp, nt_pw,
pdb_get_acct_ctrl(sampass));
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
temp);
} else {
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_NTPW),
NULL);
}
}
if (need_update(sampass, PDB_PWHISTORY)) {
uint32 pwHistLen = 0;
pdb_get_account_policy(AP_PASSWORD_HISTORY, &pwHistLen);
if (pwHistLen == 0) {
/* Remove any password history from the LDAP store. */
memset(temp, '0', 64); /* NOTE !!!! '0' *NOT '\0' */
temp[64] = '\0';
} else {
int i;
uint32 currHistLen = 0;
const uint8 *pwhist = pdb_get_pw_history(sampass, &currHistLen);
if (pwhist != NULL) {
/* We can only store (sizeof(pstring)-1)/64 password history entries. */
pwHistLen = MIN(pwHistLen, ((sizeof(temp)-1)/64));
for (i=0; i< pwHistLen && i < currHistLen; i++) {
/* Store the salt. */
pdb_sethexpwd(&temp[i*64], &pwhist[i*PW_HISTORY_ENTRY_LEN], 0);
/* Followed by the md5 hash of salt + md4 hash */
pdb_sethexpwd(&temp[(i*64)+32],
&pwhist[(i*PW_HISTORY_ENTRY_LEN)+PW_HISTORY_SALT_LEN], 0);
DEBUG(100, ("temp=%s\n", temp));
}
}
}
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_HISTORY),
temp);
}
if (need_update(sampass, PDB_PASSLASTSET)) {
slprintf (temp, sizeof (temp) - 1, "%li", pdb_get_pass_last_set_time(sampass));
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, existing, mods,
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_PWD_LAST_SET),
temp);
}
}
if (need_update(sampass, PDB_HOURS)) {
const uint8 *hours = pdb_get_hours(sampass);
if (hours) {
pdb_sethexhours(temp, hours);
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct,
existing,
mods,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_LOGON_HOURS),
temp);
}
}
if (need_update(sampass, PDB_ACCTCTRL))
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, 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 badcount = pdb_get_bad_password_count(sampass);
time_t badtime = pdb_get_bad_password_time(sampass);
uint32 pol;
pdb_get_account_policy(AP_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));
slprintf (temp, sizeof (temp) - 1, "%li", (long)badcount);
smbldap_make_mod(
ldap_state->smbldap_state->ldap_struct,
existing, mods,
get_userattr_key2string(
ldap_state->schema_ver,
LDAP_ATTR_BAD_PASSWORD_COUNT),
temp);
slprintf (temp, sizeof (temp) - 1, "%li", badtime);
smbldap_make_mod(
ldap_state->smbldap_state->ldap_struct,
existing, mods,
get_userattr_key2string(
ldap_state->schema_ver,
LDAP_ATTR_BAD_PASSWORD_TIME),
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 {
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;
}
/**********************************************************************
Connect to LDAP server for password enumeration.
*********************************************************************/
static NTSTATUS ldapsam_setsampwent(struct pdb_methods *my_methods, BOOL update, uint32 acb_mask)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
int rc;
pstring filter, suffix;
const char **attr_list;
BOOL machine_mask = False, user_mask = False;
pstr_sprintf( filter, "(&%s%s)", "(uid=%u)",
get_objclass_filter(ldap_state->schema_ver));
all_string_sub(filter, "%u", "*", sizeof(pstring));
machine_mask = ((acb_mask != 0) && (acb_mask & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)));
user_mask = ((acb_mask != 0) && (acb_mask & ACB_NORMAL));
if (machine_mask) {
pstrcpy(suffix, lp_ldap_machine_suffix());
} else if (user_mask) {
pstrcpy(suffix, lp_ldap_user_suffix());
} else {
pstrcpy(suffix, lp_ldap_suffix());
}
DEBUG(10,("ldapsam_setsampwent: LDAP Query for acb_mask 0x%x will use suffix %s\n",
acb_mask, suffix));
attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
rc = smbldap_search(ldap_state->smbldap_state, suffix, LDAP_SCOPE_SUBTREE, filter,
attr_list, 0, &ldap_state->result);
TALLOC_FREE( attr_list );
if (rc != LDAP_SUCCESS) {
DEBUG(0, ("ldapsam_setsampwent: LDAP search failed: %s\n", ldap_err2string(rc)));
DEBUG(3, ("ldapsam_setsampwent: Query was: %s, %s\n", suffix, filter));
ldap_msgfree(ldap_state->result);
ldap_state->result = NULL;
return NT_STATUS_UNSUCCESSFUL;
}
DEBUG(2, ("ldapsam_setsampwent: %d entries in the base %s\n",
ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
ldap_state->result), suffix));
ldap_state->entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
ldap_state->result);
ldap_state->index = 0;
return NT_STATUS_OK;
}
/**********************************************************************
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;
}
}
/**********************************************************************
Get the next entry in the LDAP password database.
*********************************************************************/
static NTSTATUS ldapsam_getsampwent(struct pdb_methods *my_methods,
struct samu *user)
{
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_sam_from_ldap(ldap_state, user, ldap_state->entry);
ldap_state->entry = ldap_next_entry(priv2ld(ldap_state),
ldap_state->entry);
}
return NT_STATUS_OK;
}
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_ARRAY(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;
}
/**********************************************************************
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));
append_attr(user, &attr_list, "uidNumber");
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(ldap_state->smbldap_state->ldap_struct, 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(ldap_state->smbldap_state->ldap_struct, 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);
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 DOM_SID *sid, LDAPMessage **result)
{
int rc = -1;
const char ** attr_list;
uint32 rid;
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));
append_attr(tmp_ctx, &attr_list, "uidNumber");
rc = ldapsam_search_suffix_by_sid(ldap_state, sid,
result, attr_list);
TALLOC_FREE(tmp_ctx);
if ( rc != LDAP_SUCCESS )
return rc;
break;
}
case SCHEMAVER_SAMBAACCOUNT:
if (!sid_peek_check_rid(&ldap_state->domain_sid, sid, &rid)) {
return rc;
}
attr_list = get_userattr_list(NULL,
ldap_state->schema_ver);
rc = ldapsam_search_suffix_by_rid(ldap_state, rid, result, attr_list );
TALLOC_FREE( attr_list );
if ( rc != LDAP_SUCCESS )
return rc;
break;
}
return rc;
}
/**********************************************************************
Get struct samu entry from LDAP by SID.
*********************************************************************/
static NTSTATUS ldapsam_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const 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;
fstring sid_string;
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(ldap_state->smbldap_state->ldap_struct, result);
if (count < 1) {
DEBUG(4, ("ldapsam_getsampwsid: Unable to locate SID [%s] count=%d\n", sid_to_string(sid_string, sid),
count));
ldap_msgfree(result);
return NT_STATUS_NO_SUCH_USER;
} else if (count > 1) {
DEBUG(1, ("ldapsam_getsampwsid: More than one user with SID [%s]. Failing. count=%d\n", sid_to_string(sid_string, sid),
count));
ldap_msgfree(result);
return NT_STATUS_NO_SUCH_USER;
}
entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, 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);
talloc_autofree_ldapmsg(user, result);
return NT_STATUS_OK;
}
/********************************************************************
Do the actual modification - also change a plaintext passord 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 (!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;
}
}
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;
if (!ldap_state->is_nds_ldap) {
if (!smbldap_has_extension(ldap_state->smbldap_state->ldap_struct,
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_allocate(&utf8_password, pdb_get_plaintext_passwd(newpwd)) == (size_t)-1) {
return NT_STATUS_NO_MEMORY;
}
if (push_utf8_allocate(&utf8_dn, dn) == (size_t)-1) {
SAFE_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"));
SAFE_FREE(utf8_password);
SAFE_FREE(utf8_dn);
return NT_STATUS_UNSUCCESSFUL;
}
ber_printf (ber, "{");
ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_ID, utf8_dn);
ber_printf (ber, "ts", LDAP_TAG_EXOP_MODIFY_PASSWD_NEW, utf8_password);
ber_printf (ber, "N}");
if ((rc = ber_flatten (ber, &bv))<0) {
DEBUG(0,("ldapsam_modify_entry: ber_flatten returns a value <0\n"));
ber_free(ber,1);
SAFE_FREE(utf8_dn);
SAFE_FREE(utf8_password);
return NT_STATUS_UNSUCCESSFUL;
}
SAFE_FREE(utf8_dn);
SAFE_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(ldap_state->smbldap_state->ldap_struct, 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);
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);
}
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 : LDAP_OBJ_SAMBAACCOUNT,
attr_list);
result = (rc == LDAP_SUCCESS) ?
NT_STATUS_OK : NT_STATUS_ACCESS_DENIED;
done:
TALLOC_FREE(mem_ctx);
return result;
}
/**********************************************************************
Helper function to determine for update_sam_account whether
we need LDAP modification.
*********************************************************************/
static BOOL element_is_changed(const struct samu *sampass,
enum pdb_elements element)
{
return IS_SAM_CHANGED(sampass, element);
}
/**********************************************************************
Update struct samu.
*********************************************************************/
static NTSTATUS ldapsam_update_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
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);
talloc_autofree_ldapmsg(newpwd, result);
}
if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) == 0) {
DEBUG(0, ("ldapsam_update_sam_account: No user to modify!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, result);
dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, 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,
element_is_changed)) {
DEBUG(0, ("ldapsam_update_sam_account: init_ldap_from_sam failed!\n"));
SAFE_FREE(dn);
if (mods != NULL)
ldap_mods_free(mods,True);
return NT_STATUS_UNSUCCESSFUL;
}
if (mods == NULL) {
DEBUG(4,("ldapsam_update_sam_account: mods is empty: nothing to update for user: %s\n",
pdb_get_username(newpwd)));
SAFE_FREE(dn);
return NT_STATUS_OK;
}
ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,LDAP_MOD_REPLACE, element_is_changed);
ldap_mods_free(mods,True);
SAFE_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_rename_sam_account(struct pdb_methods *my_methods,
struct samu *old_acct,
const char *newname)
{
const char *oldname;
int rc;
pstring rename_script;
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 */
pstrcpy(rename_script, lp_renameuser_script());
if (!(*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 );
strlower_m( oldname_lower );
fstrcpy( newname_lower, newname );
strlower_m( newname_lower );
string_sub2(rename_script, "%unew", newname_lower, sizeof(pstring),
True, False, True);
string_sub2(rename_script, "%uold", oldname_lower, sizeof(pstring),
True, False, True);
rc = smbrun(rename_script, NULL);
DEBUG(rc ? 0 : 3,("Running the command `%s' gave %d\n",
rename_script, rc));
if (rc == 0) {
smb_nscd_flush_user_cache();
}
if (rc)
return NT_STATUS_UNSUCCESSFUL;
return NT_STATUS_OK;
}
/**********************************************************************
Helper function to determine for update_sam_account whether
we need LDAP modification.
*********************************************************************/
static BOOL element_is_set_or_changed(const struct samu *sampass,
enum pdb_elements element)
{
return (IS_SAM_SET(sampass, element) ||
IS_SAM_CHANGED(sampass, element));
}
/**********************************************************************
Add struct samu to LDAP.
*********************************************************************/
static NTSTATUS ldapsam_add_sam_account(struct pdb_methods *my_methods, struct samu * newpwd)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
int rc;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
pstring dn;
LDAPMod **mods = NULL;
int ldap_op = LDAP_MOD_REPLACE;
uint32 num_result;
const char **attr_list;
char *escape_user;
const char *username = pdb_get_username(newpwd);
const DOM_SID *sid = pdb_get_user_sid(newpwd);
pstring filter;
fstring sid_string;
if (!username || !*username) {
DEBUG(0, ("ldapsam_add_sam_account: Cannot add user without a username!\n"));
return NT_STATUS_INVALID_PARAMETER;
}
/* free this list after the second search or in case we exit on failure */
attr_list = get_userattr_list(NULL, ldap_state->schema_ver);
rc = ldapsam_search_suffix_by_name (ldap_state, username, &result, attr_list);
if (rc != LDAP_SUCCESS) {
TALLOC_FREE( attr_list );
return NT_STATUS_UNSUCCESSFUL;
}
if (ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result) != 0) {
DEBUG(0,("ldapsam_add_sam_account: User '%s' already in the base, with samba attributes\n",
username));
ldap_msgfree(result);
TALLOC_FREE( attr_list );
return NT_STATUS_UNSUCCESSFUL;
}
ldap_msgfree(result);
result = NULL;
if (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(ldap_state->smbldap_state->ldap_struct, result) != 0) {
DEBUG(0,("ldapsam_add_sam_account: SID '%s' already in the base, with samba attributes\n",
sid_to_string(sid_string, sid)));
TALLOC_FREE( attr_list );
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
ldap_msgfree(result);
}
}
/* does the entry already exist but without a samba attributes?
we need to return the samba attributes here */
escape_user = escape_ldap_string_alloc( username );
pstrcpy( filter, "(uid=%u)" );
all_string_sub( filter, "%u", escape_user, sizeof(filter) );
SAFE_FREE( escape_user );
rc = smbldap_search_suffix(ldap_state->smbldap_state,
filter, attr_list, &result);
if ( rc != LDAP_SUCCESS ) {
TALLOC_FREE( attr_list );
return NT_STATUS_UNSUCCESSFUL;
}
num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
if (num_result > 1) {
DEBUG (0, ("ldapsam_add_sam_account: More than one user with that uid exists: bailing out!\n"));
TALLOC_FREE( attr_list );
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
/* Check if we need to update an existing entry */
if (num_result == 1) {
char *tmp;
DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
ldap_op = LDAP_MOD_REPLACE;
entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
if (!tmp) {
TALLOC_FREE( attr_list );
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
slprintf (dn, sizeof (dn) - 1, "%s", tmp);
SAFE_FREE(tmp);
} else if (ldap_state->schema_ver == SCHEMAVER_SAMBASAMACCOUNT) {
/* There might be a SID for this account already - say an idmap entry */
pstr_sprintf(filter, "(&(%s=%s)(|(objectClass=%s)(objectClass=%s)))",
get_userattr_key2string(ldap_state->schema_ver, LDAP_ATTR_USER_SID),
sid_to_string(sid_string, sid),
LDAP_OBJ_IDMAP_ENTRY,
LDAP_OBJ_SID_ENTRY);
/* 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 ) {
TALLOC_FREE( attr_list );
return NT_STATUS_UNSUCCESSFUL;
}
num_result = ldap_count_entries(ldap_state->smbldap_state->ldap_struct, result);
if (num_result > 1) {
DEBUG (0, ("ldapsam_add_sam_account: More than one user with specified Sid exists: bailing out!\n"));
TALLOC_FREE( attr_list );
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
/* Check if we need to update an existing entry */
if (num_result == 1) {
char *tmp;
DEBUG(3,("ldapsam_add_sam_account: User exists without samba attributes: adding them\n"));
ldap_op = LDAP_MOD_REPLACE;
entry = ldap_first_entry (ldap_state->smbldap_state->ldap_struct, result);
tmp = smbldap_get_dn (ldap_state->smbldap_state->ldap_struct, entry);
if (!tmp) {
TALLOC_FREE( attr_list );
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
slprintf (dn, sizeof (dn) - 1, "%s", tmp);
SAFE_FREE(tmp);
}
}
TALLOC_FREE( attr_list );
if (num_result == 0) {
/* Check if we need to add an entry */
DEBUG(3,("ldapsam_add_sam_account: Adding new user\n"));
ldap_op = LDAP_MOD_ADD;
if (username[strlen(username)-1] == '$') {
slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", username, lp_ldap_machine_suffix ());
} else {
slprintf (dn, sizeof (dn) - 1, "uid=%s,%s", username, lp_ldap_user_suffix ());
}
}
if (!init_ldap_from_sam(ldap_state, entry, &mods, newpwd,
element_is_set_or_changed)) {
DEBUG(0, ("ldapsam_add_sam_account: init_ldap_from_sam failed!\n"));
ldap_msgfree(result);
if (mods != NULL)
ldap_mods_free(mods,True);
return NT_STATUS_UNSUCCESSFUL;
}
ldap_msgfree(result);
if (mods == NULL) {
DEBUG(0,("ldapsam_add_sam_account: mods is empty: nothing to add for user: %s\n",pdb_get_username(newpwd)));
return NT_STATUS_UNSUCCESSFUL;
}
switch ( ldap_state->schema_ver ) {
case SCHEMAVER_SAMBAACCOUNT:
smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectclass", LDAP_OBJ_SAMBAACCOUNT);
break;
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;
}
ret = ldapsam_modify_entry(my_methods,newpwd,dn,mods,ldap_op, element_is_set_or_changed);
if (!NT_STATUS_IS_OK(ret)) {
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);
return ret;
}
DEBUG(2,("ldapsam_add_sam_account: added: uid == %s in the LDAP database\n", pdb_get_username(newpwd)));
ldap_mods_free(mods, True);
return NT_STATUS_OK;
}
/**********************************************************************
*********************************************************************/
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_group_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)
{
pstring temp;
if (ldap_state == NULL || map == NULL || entry == NULL ||
ldap_state->smbldap_state->ldap_struct == NULL) {
DEBUG(0, ("init_group_from_ldap: NULL parameters found!\n"));
return False;
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER), temp)) {
DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GIDNUMBER)));
return False;
}
DEBUG(2, ("init_group_from_ldap: Entry found for group: %s\n", temp));
map->gid = (gid_t)atol(temp);
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID), temp)) {
DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_SID)));
return False;
}
if (!string_to_sid(&map->sid, temp)) {
DEBUG(1, ("SID string [%s] could not be read as a valid SID\n", temp));
return False;
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE), temp)) {
DEBUG(0, ("init_group_from_ldap: Mandatory attribute %s not found\n",
get_attr_key2string( groupmap_attr_list, LDAP_ATTR_GROUP_TYPE)));
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));
return False;
}
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_attr_key2string( groupmap_attr_list, LDAP_ATTR_DISPLAY_NAME), temp)) {
temp[0] = '\0';
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_attr_key2string( groupmap_attr_list, LDAP_ATTR_CN), temp))
{
DEBUG(0, ("init_group_from_ldap: Attributes cn not found either \
for gidNumber(%lu)\n",(unsigned long)map->gid));
return False;
}
}
fstrcpy(map->nt_name, temp);
if (!smbldap_get_single_pstring(ldap_state->smbldap_state->ldap_struct, entry,
get_attr_key2string( groupmap_attr_list, LDAP_ATTR_DESC), temp)) {
temp[0] = '\0';
}
fstrcpy(map->comment, temp);
if (lp_parm_bool(-1, "ldapsam", "trusted", False)) {
store_gid_sid_cache(&map->sid, map->gid);
}
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\n"));
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,
DOM_SID sid)
{
pstring filter;
pstr_sprintf(filter, "(&(objectClass=%s)(%s=%s))",
LDAP_OBJ_GROUPMAP,
get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GROUP_SID),
sid_string_static(&sid));
return ldapsam_getgroup(methods, filter, map);
}
/**********************************************************************
*********************************************************************/
static NTSTATUS ldapsam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map,
gid_t gid)
{
pstring filter;
pstr_sprintf(filter, "(&(objectClass=%s)(%s=%lu))",
LDAP_OBJ_GROUPMAP,
get_attr_key2string(groupmap_attr_list, LDAP_ATTR_GIDNUMBER),
(unsigned long)gid);
return ldapsam_getgroup(methods, filter, map);
}
/**********************************************************************
*********************************************************************/
static NTSTATUS ldapsam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map,
const char *name)
{
pstring filter;
char *escape_name = escape_ldap_string_alloc(name);
if (!escape_name) {
return NT_STATUS_NO_MEMORY;
}
pstr_sprintf(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);
SAFE_FREE(escape_name);
return ldapsam_getgroup(methods, filter, map);
}
static BOOL ldapsam_extract_rid_from_entry(LDAP *ldap_struct,
LDAPMessage *entry,
const DOM_SID *domain_sid,
uint32 *rid)
{
fstring str;
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 (sid_compare_domain(&sid, domain_sid) != 0) {
DEBUG(10, ("SID %s is not in expected domain %s\n",
str, sid_string_static(domain_sid)));
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 DOM_SID *group,
uint32 **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;
*pp_member_rids = NULL;
*p_num_members = 0;
filter = talloc_asprintf(mem_ctx,
"(&(objectClass=%s)"
"(objectClass=%s)"
"(sambaSID=%s))",
LDAP_OBJ_POSIXGROUP,
LDAP_OBJ_GROUPMAP,
sid_string_static(group));
if (filter == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
rc = smbldap_search(conn, lp_ldap_group_suffix(),
LDAP_SCOPE_SUBTREE, filter, id_attrs, 0,
&result);
if (rc != LDAP_SUCCESS)
goto done;
talloc_autofree_ldapmsg(mem_ctx, result);
count = ldap_count_entries(conn->ldap_struct, result);
if (count > 1) {
DEBUG(1, ("Found more than one groupmap entry for %s\n",
sid_string_static(group)));
ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
goto done;
}
if (count == 0) {
ret = NT_STATUS_NO_SUCH_GROUP;
goto done;
}
entry = ldap_first_entry(conn->ldap_struct, 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(conn->ldap_struct, entry, "memberUid");
if (values) {
filter = talloc_asprintf(mem_ctx, "(&(objectClass=%s)(|", LDAP_OBJ_SAMBASAMACCOUNT);
if (filter == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
for (memberuid = values; *memberuid != NULL; memberuid += 1) {
filter = talloc_asprintf_append(filter, "(uid=%s)", *memberuid);
if (filter == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
}
filter = talloc_asprintf_append(filter, "))");
if (filter == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
rc = smbldap_search(conn, lp_ldap_user_suffix(),
LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
&result);
if (rc != LDAP_SUCCESS)
goto done;
count = ldap_count_entries(conn->ldap_struct, result);
DEBUG(10,("ldapsam_enum_group_members: found %d accounts\n", count));
talloc_autofree_ldapmsg(mem_ctx, result);
for (entry = ldap_first_entry(conn->ldap_struct, result);
entry != NULL;
entry = ldap_next_entry(conn->ldap_struct, entry))
{
char *sidstr;
DOM_SID sid;
uint32 rid;
sidstr = smbldap_talloc_single_attribute(conn->ldap_struct,
entry, "sambaSID",
mem_ctx);
if (!sidstr) {
DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
"the sambaSID attribute\n"));
ret = NT_STATUS_INTERNAL_DB_CORRUPTION;
goto done;
}
if (!string_to_sid(&sid, sidstr))
goto done;
if (!sid_check_is_in_our_domain(&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_user_suffix(),
LDAP_SCOPE_SUBTREE, filter, sid_attrs, 0,
&result);
if (rc != LDAP_SUCCESS)
goto done;
talloc_autofree_ldapmsg(mem_ctx, result);
for (entry = ldap_first_entry(conn->ldap_struct, result);
entry != NULL;
entry = ldap_next_entry(conn->ldap_struct, entry))
{
uint32 rid;
if (!ldapsam_extract_rid_from_entry(conn->ldap_struct,
entry,
get_global_sam_sid(),
&rid)) {
DEBUG(0, ("Severe DB error, sambaSamAccount can't miss "
"the sambaSID attribute\n"));
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,
DOM_SID **pp_sids,
gid_t **pp_gids,
size_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;
size_t num_sids, num_gids;
char *gidstr;
gid_t primary_gid = -1;
*pp_sids = NULL;
num_sids = 0;
if (pdb_get_username(user) == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
escape_name = escape_ldap_string_alloc(pdb_get_username(user));
if (escape_name == NULL)
return NT_STATUS_NO_MEMORY;
/* retrieve the users primary gid */
filter = talloc_asprintf(mem_ctx,
"(&(objectClass=%s)(uid=%s))",
LDAP_OBJ_SAMBASAMACCOUNT,
escape_name);
if (filter == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
rc = smbldap_search(conn, lp_ldap_user_suffix(),
LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
if (rc != LDAP_SUCCESS)
goto done;
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 = strtoul(gidstr, NULL, 10);
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=%s)(|(memberUid=%s)(gidNumber=%d)))",
LDAP_OBJ_POSIXGROUP, escape_name, primary_gid);
if (filter == NULL) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
rc = smbldap_search(conn, lp_ldap_group_suffix(),
LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
if (rc != LDAP_SUCCESS)
goto done;
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 */
if (!add_sid_to_array_unique(mem_ctx, &global_sid_NULL, pp_sids, &num_sids)) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
for (entry = ldap_first_entry(conn->ldap_struct, result);
entry != NULL;
entry = ldap_next_entry(conn->ldap_struct, entry))
{
fstring str;
DOM_SID sid;
gid_t gid;
char *end;
if (!smbldap_get_single_attribute(conn->ldap_struct,
entry, "sambaSID",
str, sizeof(str)-1))
continue;
if (!string_to_sid(&sid, str))
goto done;
if (!smbldap_get_single_attribute(conn->ldap_struct,
entry, "gidNumber",
str, sizeof(str)-1))
continue;
gid = strtoul(str, &end, 10);
if (PTR_DIFF(end, str) != strlen(str))
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;
}
if (!add_sid_to_array_unique(mem_ctx, &sid, pp_sids,
&num_sids)) {
ret = NT_STATUS_NO_MEMORY;
goto done;
}
}
}
if (sid_compare(&global_sid_NULL, &(*pp_sids)[0]) == 0) {
DEBUG(3, ("primary group of [%s] not found\n",
pdb_get_username(user)));
goto done;
}
*p_num_groups = num_sids;
ret = NT_STATUS_OK;
done:
SAFE_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;
int rc;
filter = talloc_asprintf(mem_ctx,
"(&(objectClass=posixGroup)(gidNumber=%u))",
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);
talloc_autofree_ldapmsg(mem_ctx, msg);
if ((rc != LDAP_SUCCESS) ||
(ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
return NT_STATUS_NO_SUCH_GROUP;
}
dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
if (dn == NULL) {
return NT_STATUS_NO_MEMORY;
}
mods = NULL;
smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass",
"sambaGroupMapping");
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaSid",
sid_string_static(&map->sid));
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "sambaGroupType",
talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
map->nt_name);
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
map->comment);
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;
DOM_SID sid;
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)",
sid_string_static(&map->sid));
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);
talloc_autofree_ldapmsg(mem_ctx, msg);
if ((rc == LDAP_SUCCESS) &&
(ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) > 0)) {
DEBUG(3, ("SID %s already present in LDAP, refusing to add "
"group mapping entry\n",
sid_string_static(&map->sid)));
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_domain(&map->sid)
&& !sid_check_is_in_builtin(&map->sid) )
{
DEBUG(3, ("Refusing to map sid %s as an alias, not in our domain\n",
sid_string_static(&map->sid)));
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;
}
if (pdb_gid_to_sid(map->gid, &sid)) {
DEBUG(3, ("Gid %d is already mapped to SID %s, refusing to "
"add\n", map->gid, sid_string_static(&sid)));
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",
sid_string_static(&map->sid),
lp_ldap_group_suffix());
if (dn == NULL) {
result = NT_STATUS_NO_MEMORY;
goto done;
}
mods = NULL;
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
"sambaSidEntry");
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "objectClass",
"sambaGroupMapping");
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaSid",
sid_string_static(&map->sid));
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "sambaGroupType",
talloc_asprintf(mem_ctx, "%d", map->sid_name_use));
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "displayName",
map->nt_name);
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "description",
map->comment);
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, NULL, &mods, "gidNumber",
talloc_asprintf(mem_ctx, "%u", map->gid));
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;
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=%s)"
"(sambaSid=%s)(gidNumber=%u)"
"(sambaGroupType=%d))",
LDAP_OBJ_GROUPMAP,
sid_string_static(&map->sid), 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);
talloc_autofree_ldapmsg(mem_ctx, msg);
if ((rc != LDAP_SUCCESS) ||
(ldap_count_entries(ldap_state->smbldap_state->ldap_struct, msg) != 1) ||
((entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct, msg)) == NULL)) {
result = NT_STATUS_NO_SUCH_GROUP;
goto done;
}
dn = smbldap_talloc_dn(mem_ctx, ldap_state->smbldap_state->ldap_struct, entry);
if (dn == NULL) {
result = NT_STATUS_NO_MEMORY;
goto done;
}
mods = NULL;
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "displayName",
map->nt_name);
smbldap_make_mod(ldap_state->smbldap_state->ldap_struct, entry, &mods, "description",
map->comment);
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,
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;
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=%s)(%s=%s))",
LDAP_OBJ_GROUPMAP, LDAP_ATTRIBUTE_SID,
sid_string_static(&sid));
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);
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_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_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;
fstring filter;
int rc;
const char **attr_list;
pstr_sprintf( filter, "(objectclass=%s)", LDAP_OBJ_GROUPMAP);
attr_list = get_attr_list( NULL, groupmap_attr_list );
rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_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_group_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(ldap_state->smbldap_state->ldap_struct,
ldap_state->result)));
ldap_state->entry =
ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
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(ldap_state->smbldap_state->ldap_struct,
ldap_state->entry);
}
return NT_STATUS_OK;
}
/**********************************************************************
*********************************************************************/
static NTSTATUS ldapsam_enum_group_mapping(struct pdb_methods *methods,
const DOM_SID *domsid, enum lsa_SidType sid_name_use,
GROUP_MAP **pp_rmap,
size_t *p_num_entries,
BOOL unix_only)
{
GROUP_MAP map;
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 (NT_STATUS_IS_OK(ldapsam_getsamgrent(methods, &map))) {
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)=SMB_REALLOC_ARRAY((*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] = map;
entries += 1;
}
ldapsam_endsamgrent(methods);
*p_num_entries = entries;
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_modify_aliasmem(struct pdb_methods *methods,
const DOM_SID *alias,
const DOM_SID *member,
int modop)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
char *dn;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
int count;
LDAPMod **mods = NULL;
int rc;
enum lsa_SidType type = SID_NAME_USE_NONE;
pstring filter;
if (sid_check_is_in_builtin(alias)) {
type = SID_NAME_ALIAS;
}
if (sid_check_is_in_our_domain(alias)) {
type = SID_NAME_ALIAS;
}
if (type == SID_NAME_USE_NONE) {
DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
sid_string_static(alias)));
return NT_STATUS_NO_SUCH_ALIAS;
}
pstr_sprintf(filter,
"(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
LDAP_OBJ_GROUPMAP, sid_string_static(alias),
type);
if (ldapsam_search_one_group(ldap_state, filter,
&result) != LDAP_SUCCESS)
return NT_STATUS_NO_SUCH_ALIAS;
count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
result);
if (count < 1) {
DEBUG(4, ("ldapsam_modify_aliasmem: Did not find alias\n"));
ldap_msgfree(result);
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);
return NT_STATUS_NO_SUCH_ALIAS;
}
entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
result);
if (!entry) {
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, 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),
sid_string_static(member));
rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
ldap_mods_free(mods, True);
ldap_msgfree(result);
SAFE_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 DOM_SID *alias,
const DOM_SID *member)
{
return ldapsam_modify_aliasmem(methods, alias, member, LDAP_MOD_ADD);
}
static NTSTATUS ldapsam_del_aliasmem(struct pdb_methods *methods,
const DOM_SID *alias,
const DOM_SID *member)
{
return ldapsam_modify_aliasmem(methods, alias, member,
LDAP_MOD_DELETE);
}
static NTSTATUS ldapsam_enum_aliasmem(struct pdb_methods *methods,
const DOM_SID *alias,
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;
int i;
pstring filter;
size_t num_members = 0;
enum lsa_SidType type = SID_NAME_USE_NONE;
*pp_members = NULL;
*p_num_members = 0;
if (sid_check_is_in_builtin(alias)) {
type = SID_NAME_ALIAS;
}
if (sid_check_is_in_our_domain(alias)) {
type = SID_NAME_ALIAS;
}
if (type == SID_NAME_USE_NONE) {
DEBUG(5, ("SID %s is neither in builtin nor in our domain!\n",
sid_string_static(alias)));
return NT_STATUS_NO_SUCH_ALIAS;
}
pstr_sprintf(filter,
"(&(objectClass=%s)(sambaSid=%s)(sambaGroupType=%d))",
LDAP_OBJ_GROUPMAP, sid_string_static(alias),
type);
if (ldapsam_search_one_group(ldap_state, filter,
&result) != LDAP_SUCCESS)
return NT_STATUS_NO_SUCH_ALIAS;
count = ldap_count_entries(ldap_state->smbldap_state->ldap_struct,
result);
if (count < 1) {
DEBUG(4, ("ldapsam_enum_aliasmem: Did not find alias\n"));
ldap_msgfree(result);
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);
return NT_STATUS_NO_SUCH_ALIAS;
}
entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
result);
if (!entry) {
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
values = ldap_get_values(ldap_state->smbldap_state->ldap_struct,
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++) {
DOM_SID member;
if (!string_to_sid(&member, values[i]))
continue;
if (!add_sid_to_array(NULL, &member, pp_members, &num_members)) {
ldap_value_free(values);
ldap_msgfree(result);
return NT_STATUS_NO_MEMORY;
}
}
*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 DOM_SID *domain_sid,
const DOM_SID *members,
size_t num_members,
uint32 **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;
if (sid_check_is_builtin(domain_sid)) {
type = SID_NAME_ALIAS;
}
if (sid_check_is_domain(domain_sid)) {
type = SID_NAME_ALIAS;
}
if (type == SID_NAME_USE_NONE) {
DEBUG(5, ("SID %s is neither builtin nor domain!\n",
sid_string_static(domain_sid)));
return NT_STATUS_UNSUCCESSFUL;
}
filter = talloc_asprintf(mem_ctx,
"(&(|(objectclass=%s)(sambaGroupType=%d))(|",
LDAP_OBJ_GROUPMAP, type);
for (i=0; i<num_members; i++)
filter = talloc_asprintf(mem_ctx, "%s(sambaSIDList=%s)",
filter,
sid_string_static(&members[i]));
filter = talloc_asprintf(mem_ctx, "%s))", filter);
if (filter == NULL) {
return NT_STATUS_NO_MEMORY;
}
rc = smbldap_search(ldap_state->smbldap_state, lp_ldap_group_suffix(),
LDAP_SCOPE_SUBTREE, filter, attrs, 0, &result);
if (rc != LDAP_SUCCESS)
return NT_STATUS_UNSUCCESSFUL;
ldap_struct = ldap_state->smbldap_state->ldap_struct;
for (entry = ldap_first_entry(ldap_struct, result);
entry != NULL;
entry = ldap_next_entry(ldap_struct, entry))
{
fstring sid_str;
DOM_SID sid;
uint32 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;
if (!add_rid_to_array_unique(mem_ctx, rid, pp_alias_rids,
p_num_alias_rids)) {
ldap_msgfree(result);
return NT_STATUS_NO_MEMORY;
}
}
ldap_msgfree(result);
return NT_STATUS_OK;
}
static NTSTATUS ldapsam_set_account_policy_in_ldap(struct pdb_methods *methods,
int policy_index,
uint32 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(policy_index);
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(policy_index, 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,
int policy_index, uint32 value)
{
return ldapsam_set_account_policy_in_ldap(methods, policy_index,
value);
}
static NTSTATUS ldapsam_get_account_policy_from_ldap(struct pdb_methods *methods,
int policy_index,
uint32 *value)
{
NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
int count;
int rc;
char **vals = NULL;
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(policy_index);
if (!policy_attr) {
DEBUG(0,("ldapsam_get_account_policy_from_ldap: invalid "
"policy index: %d\n", policy_index));
return ntstatus;
}
attrs[0] = policy_attr;
attrs[1] = NULL;
rc = smbldap_search(ldap_state->smbldap_state, ldap_state->domain_dn,
LDAP_SCOPE_BASE, "(objectclass=*)", 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)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,
int policy_index, uint32 *value)
{
NTSTATUS ntstatus = NT_STATUS_UNSUCCESSFUL;
if (cache_account_policy_get(policy_index, 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, policy_index,
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(policy_index, value))
goto update_ldap;
DEBUG(10,("ldapsam_get_account_policy: no tdb for %d, trying "
"default\n", policy_index));
#endif
if (!account_policy_get_default(policy_index, value)) {
return ntstatus;
}
/* update_ldap: */
ntstatus = ldapsam_set_account_policy(methods, policy_index, *value);
if (!NT_STATUS_IS_OK(ntstatus)) {
return ntstatus;
}
update_cache:
if (!cache_account_policy_set(policy_index, *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 DOM_SID *domain_sid,
int num_rids,
uint32 *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;
int i, rc, num_mapped;
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_domain(domain_sid)) {
result = NT_STATUS_INVALID_PARAMETER;
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++) {
DOM_SID sid;
sid_compose(&sid, domain_sid, rids[i]);
allsids = talloc_asprintf_append(allsids, "(sambaSid=%s)",
sid_string_static(&sid));
if (allsids == NULL) {
goto done;
}
}
/* First look for users */
{
char *filter;
const char *ldap_attrs[] = { "uid", "sambaSid", NULL };
filter = talloc_asprintf(
mem_ctx, ("(&(objectClass=%s)(|%s))"),
LDAP_OBJ_SAMBASAMACCOUNT, allsids);
if (filter == NULL) {
goto done;
}
rc = smbldap_search(ldap_state->smbldap_state,
lp_ldap_user_suffix(),
LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
&msg);
talloc_autofree_ldapmsg(mem_ctx, msg);
}
if (rc != LDAP_SUCCESS)
goto done;
ld = ldap_state->smbldap_state->ldap_struct;
num_mapped = 0;
for (entry = ldap_first_entry(ld, msg);
entry != NULL;
entry = ldap_next_entry(ld, entry)) {
uint32 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=%s)(|%s))",
LDAP_OBJ_GROUPMAP, allsids);
if (filter == NULL) {
goto done;
}
rc = smbldap_search(ldap_state->smbldap_state,
lp_ldap_group_suffix(),
LDAP_SCOPE_SUBTREE, filter, ldap_attrs, 0,
&msg);
talloc_autofree_ldapmsg(mem_ctx, msg);
}
if (rc != LDAP_SUCCESS)
goto done;
/* ldap_struct might have changed due to a reconnect */
ld = ldap_state->smbldap_state->ldap_struct;
/* 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 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;
asprintf(&filter, "(&%s(objectclass=sambaSamAccount))",
"(uid=%u)");
if (filter == NULL) goto done;
escaped = escape_ldap_string_alloc(username);
if (escaped == NULL) goto done;
result = talloc_string_sub(mem_ctx, filter, "%u", username);
done:
SAFE_FREE(filter);
SAFE_FREE(escaped);
return result;
}
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);
return NULL;
}
}
va_end(ap);
result[num] = NULL;
return result;
}
struct ldap_search_state {
struct smbldap_state *connection;
uint32 acct_flags;
uint16 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 (state->connection->paged_results) {
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. */
state->connection->paged_results = False;
}
ld = state->connection->ldap_struct;
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);
if (state->current_entry == NULL) {
ldap_msgfree(state->entries);
state->entries = NULL;
}
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 (!state->connection->paged_results) {
/* 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(state->connection->ldap_struct, state->entries);
if (state->current_entry == NULL) {
ldap_msgfree(state->entries);
state->entries = NULL;
}
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;
result = state->ldap2displayentry(state, search->mem_ctx, state->connection->ldap_struct,
state->current_entry, entry);
if (!result) {
char *dn;
dn = ldap_get_dn(state->connection->ldap_struct, 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(state->connection->ldap_struct, 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 (!state->connection->paged_results)
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;
DOM_SID sid;
uint32 acct_flags;
vals = ldap_get_values(ld, entry, "sambaAcctFlags");
if ((vals == NULL) || (vals[0] == NULL)) {
DEBUG(5, ("\"sambaAcctFlags\" not found\n"));
return False;
}
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;
}
pull_utf8_talloc(mem_ctx,
CONST_DISCARD(char **, &result->account_name),
vals[0]);
ldap_value_free(vals);
vals = ldap_get_values(ld, entry, "displayName");
if ((vals == NULL) || (vals[0] == NULL))
DEBUG(8, ("\"displayName\" not found\n"));
else
pull_utf8_talloc(mem_ctx,
CONST_DISCARD(char **, &result->fullname),
vals[0]);
ldap_value_free(vals);
vals = ldap_get_values(ld, entry, "description");
if ((vals == NULL) || (vals[0] == NULL))
DEBUG(8, ("\"description\" not found\n"));
else
pull_utf8_talloc(mem_ctx,
CONST_DISCARD(char **, &result->description),
vals[0]);
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)) {
DEBUG(0, ("sid %s does not belong to our domain\n",
sid_string_static(&sid)));
return False;
}
return True;
}
static BOOL ldapsam_search_users(struct pdb_methods *methods,
struct pdb_search *search,
uint32 acct_flags)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
struct ldap_search_state *state;
state = TALLOC_P(search->mem_ctx, 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();
else if ((acct_flags != 0) &&
((acct_flags & (ACB_WSTRUST|ACB_SVRTRUST|ACB_DOMTRUST)) != 0))
state->base = lp_ldap_machine_suffix();
else
state->base = lp_ldap_suffix();
state->acct_flags = acct_flags;
state->base = talloc_strdup(search->mem_ctx, state->base);
state->scope = LDAP_SCOPE_SUBTREE;
state->filter = get_ldap_filter(search->mem_ctx, "*");
state->attrs = talloc_attrs(search->mem_ctx, "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;
DOM_SID sid;
uint16 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;
}
pull_utf8_talloc(mem_ctx,
CONST_DISCARD(char **, &result->account_name),
vals[0]);
}
else {
pull_utf8_talloc(mem_ctx,
CONST_DISCARD(char **, &result->account_name),
vals[0]);
}
ldap_value_free(vals);
vals = ldap_get_values(ld, entry, "description");
if ((vals == NULL) || (vals[0] == NULL))
DEBUG(8, ("\"description\" not found\n"));
else
pull_utf8_talloc(mem_ctx,
CONST_DISCARD(char **, &result->description),
vals[0]);
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))
{
DEBUG(0, ("%s is not in our domain\n",
sid_string_static(&sid)));
return False;
}
break;
default:
DEBUG(0,("unkown group type: %d\n", group_type));
return False;
}
return True;
}
static BOOL ldapsam_search_grouptype(struct pdb_methods *methods,
struct pdb_search *search,
const DOM_SID *sid,
enum lsa_SidType type)
{
struct ldapsam_privates *ldap_state =
(struct ldapsam_privates *)methods->private_data;
struct ldap_search_state *state;
state = TALLOC_P(search->mem_ctx, struct ldap_search_state);
if (state == NULL) {
DEBUG(0, ("talloc failed\n"));
return False;
}
state->connection = ldap_state->smbldap_state;
state->base = talloc_strdup(search->mem_ctx, lp_ldap_group_suffix());
state->connection = ldap_state->smbldap_state;
state->scope = LDAP_SCOPE_SUBTREE;
state->filter = talloc_asprintf(search->mem_ctx,
"(&(objectclass=sambaGroupMapping)"
"(sambaGroupType=%d)(sambaSID=%s*))",
type, sid_string_static(sid));
state->attrs = talloc_attrs(search->mem_ctx, "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 DOM_SID *sid)
{
return ldapsam_search_grouptype(methods, search, sid, SID_NAME_ALIAS);
}
static BOOL ldapsam_rid_algorithm(struct pdb_methods *methods)
{
return False;
}
static NTSTATUS ldapsam_get_new_rid(struct ldapsam_privates *priv,
uint32 *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 nextRid = 0;
const char *dn;
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;
}
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) {
uint32 tmp = (uint32)strtoul(value, NULL, 10);
nextRid = MAX(nextRid, tmp);
}
value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
"sambaNextUserRid", mem_ctx);
if (value != NULL) {
uint32 tmp = (uint32)strtoul(value, NULL, 10);
nextRid = MAX(nextRid, tmp);
}
value = smbldap_talloc_single_attribute(priv2ld(priv), entry,
"sambaNextGroupRid", mem_ctx);
if (value != NULL) {
uint32 tmp = (uint32)strtoul(value, NULL, 10);
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));
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 *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 *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 DOM_SID *sid,
union unid_t *id, enum lsa_SidType *type)
{
struct ldapsam_privates *priv =
(struct ldapsam_privates *)methods->private_data;
char *filter;
const char *attrs[] = { "sambaGroupType", "gidNumber", "uidNumber",
NULL };
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
BOOL ret = False;
char *value;
int rc;
TALLOC_CTX *mem_ctx;
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=%s)(objectClass=%s)))",
sid_string_static(sid),
LDAP_OBJ_GROUPMAP, LDAP_OBJ_SAMBASAMACCOUNT);
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;
}
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->gid = strtoul(gid_str, NULL, 10);
*type = (enum lsa_SidType)strtoul(value, NULL, 10);
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->uid = strtoul(value, NULL, 10);
*type = SID_NAME_USER;
ret = True;
done:
TALLOC_FREE(mem_ctx);
return ret;
}
/*
* The following functions is 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 acb_info, uint32 *rid)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
LDAPMessage *entry = NULL;
LDAPMessage *result = NULL;
uint32 num_result;
BOOL is_machine = False;
BOOL add_posix = False;
LDAPMod **mods = NULL;
struct samu *user;
char *filter;
char *username;
char *homedir;
char *gidstr;
char *uidstr;
char *shell;
const char *dn = NULL;
DOM_SID group_sid;
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_alloc(name);
filter = talloc_asprintf(tmp_ctx, "(&(uid=%s)(objectClass=%s))",
username, LDAP_OBJ_POSIXACCOUNT);
SAFE_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_UNSUCCESSFUL;
}
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;
}
if (!init_ldap_from_sam(ldap_state, NULL, &mods, user, element_is_set_or_changed)) {
DEBUG(1,("ldapsam_create_user: Unable to fill user structs\n"));
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) {
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_GROUP_RID_USERS) ||
!sid_to_gid(&group_sid, &gid)) {
DEBUG (0, ("ldapsam_create_user: Unable to get the Domain Users gid: bailing out!\n"));
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"));
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", ldap_state->domain_name, uid, gid);
shell = talloc_strdup(tmp_ctx, "/bin/false");
} else {
homedir = talloc_sub_specified(tmp_ctx, lp_template_homedir(), name, ldap_state->domain_name, uid, gid);
shell = talloc_sub_specified(tmp_ctx, lp_template_shell(), name, ldap_state->domain_name, uid, gid);
}
uidstr = talloc_asprintf(tmp_ctx, "%d", uid);
gidstr = talloc_asprintf(tmp_ctx, "%d", gid);
if (is_machine) {
dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", name, lp_ldap_machine_suffix ());
} else {
dn = talloc_asprintf(tmp_ctx, "uid=%s,%s", name, lp_ldap_user_suffix ());
}
if (!homedir || !shell || !uidstr || !gidstr || !dn) {
DEBUG (0, ("ldapsam_create_user: Out of memory!\n"));
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);
}
talloc_autofree_ldapmod(tmp_ctx, mods);
if (add_posix) {
rc = smbldap_add(ldap_state->smbldap_state, dn, mods);
} else {
rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
}
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=%s)"
"(objectClass=%s))",
pdb_get_username(sam_acct),
LDAP_OBJ_POSIXACCOUNT,
LDAP_OBJ_SAMBASAMACCOUNT);
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;
}
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;
}
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 *rid)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
NTSTATUS ret;
LDAPMessage *entry = NULL;
LDAPMessage *result = NULL;
uint32 num_result;
BOOL is_new_entry = False;
LDAPMod **mods = NULL;
char *filter;
char *groupsidstr;
char *groupname;
char *grouptype;
char *gidstr;
const char *dn = NULL;
DOM_SID group_sid;
gid_t gid = -1;
int rc;
groupname = escape_ldap_string_alloc(name);
filter = talloc_asprintf(tmp_ctx, "(&(cn=%s)(objectClass=%s))",
groupname, LDAP_OBJ_POSIXGROUP);
SAFE_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;
}
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 = strtoul(tmp, NULL, 10);
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) {
DEBUG(3,("ldapsam_create_user: Creating new posix group\n"));
is_new_entry = True;
/* 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, "%d", gid);
dn = talloc_asprintf(tmp_ctx, "cn=%s,%s", name, lp_ldap_group_suffix());
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);
}
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);
groupsidstr = talloc_strdup(tmp_ctx, sid_string_static(&group_sid));
grouptype = talloc_asprintf(tmp_ctx, "%d", SID_NAME_DOM_GRP);
if (!groupsidstr || !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", groupsidstr);
smbldap_set_mod(&mods, LDAP_MOD_ADD, "sambaGroupType", grouptype);
smbldap_set_mod(&mods, LDAP_MOD_ADD, "displayName", name);
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 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;
DOM_SID group_sid;
int rc;
/* get the group sid */
sid_compose(&group_sid, get_global_sam_sid(), rid);
filter = talloc_asprintf(tmp_ctx,
"(&(sambaSID=%s)"
"(objectClass=%s)"
"(objectClass=%s))",
sid_string_static(&group_sid),
LDAP_OBJ_POSIXGROUP,
LDAP_OBJ_GROUPMAP);
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;
}
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=%s)"
"(objectClass=%s))",
gidstr,
LDAP_OBJ_POSIXACCOUNT,
LDAP_OBJ_SAMBASAMACCOUNT);
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;
}
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 group_rid,
uint32 member_rid,
int modop)
{
struct ldapsam_privates *ldap_state = (struct ldapsam_privates *)my_methods->private_data;
LDAPMessage *entry = NULL;
LDAPMessage *result = NULL;
uint32 num_result;
LDAPMod **mods = NULL;
char *filter;
char *uidstr;
const char *dn = NULL;
DOM_SID group_sid;
DOM_SID member_sid;
int rc;
switch (modop) {
case LDAP_MOD_ADD:
DEBUG(1,("ldapsam_change_groupmem: add new member(rid=%d) to a domain group(rid=%d)", member_rid, group_rid));
break;
case LDAP_MOD_DELETE:
DEBUG(1,("ldapsam_change_groupmem: delete member(rid=%d) from a domain group(rid=%d)", 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=%s)"
"(objectClass=%s))",
sid_string_static(&member_sid),
LDAP_OBJ_POSIXACCOUNT,
LDAP_OBJ_SAMBASAMACCOUNT);
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;
}
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 = strtoul(gidstr, NULL, 10);
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 it's 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=%s)"
"(objectClass=%s))",
sid_string_static(&group_sid),
LDAP_OBJ_POSIXGROUP,
LDAP_OBJ_GROUPMAP);
/* 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;
}
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);
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 group_rid,
uint32 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 group_rid,
uint32 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 num_result;
LDAPMod **mods = NULL;
char *filter;
char *gidstr;
const 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 retieve gid from user's group SID!\n"));
return NT_STATUS_UNSUCCESSFUL;
}
gidstr = talloc_asprintf(mem_ctx, "%d", gid);
if (!gidstr) {
DEBUG(0,("ldapsam_set_primary_group: Out of Memory!\n"));
return NT_STATUS_NO_MEMORY;
}
filter = talloc_asprintf(mem_ctx,
"(&(uid=%s)"
"(objectClass=%s)"
"(objectClass=%s))",
pdb_get_username(sampass),
LDAP_OBJ_POSIXACCOUNT,
LDAP_OBJ_SAMBASAMACCOUNT);
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;
}
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) {
return NT_STATUS_OK;
}
rc = smbldap_modify(ldap_state->smbldap_state, dn, mods);
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;
}
/**********************************************************************
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;
if (!NT_STATUS_IS_OK(nt_status = make_pdb_method( pdb_method ))) {
return nt_status;
}
(*pdb_method)->name = "ldapsam";
(*pdb_method)->setsampwent = ldapsam_setsampwent;
(*pdb_method)->endsampwent = ldapsam_endsampwent;
(*pdb_method)->getsampwent = ldapsam_getsampwent;
(*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)->rid_algorithm = ldapsam_rid_algorithm;
(*pdb_method)->new_rid = ldapsam_new_rid;
/* TODO: Setup private data and free */
if ( !(ldap_state = TALLOC_ZERO_P(*pdb_method, struct ldapsam_privates)) ) {
DEBUG(0, ("pdb_init_ldapsam_common: talloc() failed for ldapsam private_data!\n"));
return NT_STATUS_NO_MEMORY;
}
nt_status = smbldap_init(*pdb_method, location, &ldap_state->smbldap_state);
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;
}
/**********************************************************************
Initialise the 'compat' mode for pdb_ldap
*********************************************************************/
NTSTATUS pdb_init_ldapsam_compat(struct pdb_methods **pdb_method, const char *location)
{
NTSTATUS nt_status;
struct ldapsam_privates *ldap_state;
char *uri = talloc_strdup( NULL, location );
trim_char( uri, '\"', '\"' );
nt_status = pdb_init_ldapsam_common( pdb_method, uri );
if ( uri )
TALLOC_FREE( uri );
if ( !NT_STATUS_IS_OK(nt_status) ) {
return nt_status;
}
(*pdb_method)->name = "ldapsam_compat";
ldap_state = (struct ldapsam_privates *)((*pdb_method)->private_data);
ldap_state->schema_ver = SCHEMAVER_SAMBAACCOUNT;
sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
return NT_STATUS_OK;
}
/**********************************************************************
Initialise the normal mode for pdb_ldap
*********************************************************************/
NTSTATUS pdb_init_ldapsam(struct pdb_methods **pdb_method, const char *location)
{
NTSTATUS nt_status;
struct ldapsam_privates *ldap_state;
uint32 alg_rid_base;
pstring alg_rid_base_string;
LDAPMessage *result = NULL;
LDAPMessage *entry = NULL;
DOM_SID ldap_domain_sid;
DOM_SID secrets_domain_sid;
pstring domain_sid_string;
char *dn;
char *uri = talloc_strdup( NULL, location );
trim_char( uri, '\"', '\"' );
nt_status = pdb_init_ldapsam_common(pdb_method, uri);
if ( 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;
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;
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(2, ("pdb_init_ldapsam: WARNING: Could not get domain "
"info, nor add one to the domain\n"));
DEBUGADD(2, ("pdb_init_ldapsam: Continuing on regardless, "
"will be unable to allocate new users/groups, "
"and will risk BDCs having inconsistant SIDs\n"));
sid_copy(&ldap_state->domain_sid, get_global_sam_sid());
return NT_STATUS_OK;
}
/* Given that the above might fail, everything below this must be
* optional */
entry = ldap_first_entry(ldap_state->smbldap_state->ldap_struct,
result);
if (!entry) {
DEBUG(0, ("pdb_init_ldapsam: Could not get domain info "
"entry\n"));
ldap_msgfree(result);
return NT_STATUS_UNSUCCESSFUL;
}
dn = smbldap_get_dn(ldap_state->smbldap_state->ldap_struct, entry);
if (!dn) {
return NT_STATUS_UNSUCCESSFUL;
}
ldap_state->domain_dn = smb_xstrdup(dn);
ldap_memfree(dn);
if (smbldap_get_single_pstring(
ldap_state->smbldap_state->ldap_struct,
entry,
get_userattr_key2string(ldap_state->schema_ver,
LDAP_ATTR_USER_SID),
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));
return NT_STATUS_INVALID_PARAMETER;
}
found_sid = secrets_fetch_domain_sid(ldap_state->domain_name,
&secrets_domain_sid);
if (!found_sid || !sid_equal(&secrets_domain_sid,
&ldap_domain_sid)) {
fstring new_sid_str, old_sid_str;
DEBUG(1, ("pdb_init_ldapsam: Resetting SID for domain "
"%s based on pdb_ldap results %s -> %s\n",
ldap_state->domain_name,
sid_to_string(old_sid_str,
&secrets_domain_sid),
sid_to_string(new_sid_str,
&ldap_domain_sid)));
/* reset secrets.tdb sid */
secrets_store_domain_sid(ldap_state->domain_name,
&ldap_domain_sid);
DEBUG(1, ("New global sam SID: %s\n",
sid_to_string(new_sid_str,
get_global_sam_sid())));
}
sid_copy(&ldap_state->domain_sid, &ldap_domain_sid);
}
if (smbldap_get_single_pstring(
ldap_state->smbldap_state->ldap_struct,
entry,
get_attr_key2string( dominfo_attr_list,
LDAP_ATTR_ALGORITHMIC_RID_BASE ),
alg_rid_base_string)) {
alg_rid_base = (uint32)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);
return NT_STATUS_UNSUCCESSFUL;
}
}
ldap_msgfree(result);
return NT_STATUS_OK;
}
NTSTATUS pdb_ldap_init(void)
{
NTSTATUS nt_status;
if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam", pdb_init_ldapsam)))
return nt_status;
if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "ldapsam_compat", pdb_init_ldapsam_compat)))
return nt_status;
/* Let pdb_nds register backends */
pdb_nds_init();
return NT_STATUS_OK;
}
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