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|
/*
Unix SMB/CIFS implementation.
Password and authentication handling
Copyright (C) Andrew Bartlett 2002
Copyright (C) Jelmer Vernooij 2002
Copyright (C) Simo Sorce 2003
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.
*/
#include "includes.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_PASSDB
static struct pdb_init_function_entry *backends = NULL;
static void lazy_initialize_passdb(void)
{
static BOOL initialized = False;
if(initialized)return;
static_init_pdb;
initialized = True;
}
static struct pdb_init_function_entry *pdb_find_backend_entry(const char *name);
/*******************************************************************
Clean up uninitialised passwords. The only way to tell
that these values are not 'real' is that they do not
have a valid last set time. Instead, the value is fixed at 0.
Therefore we use that as the key for 'is this a valid password'.
However, it is perfectly valid to have a 'default' last change
time, such LDAP with a missing attribute would produce.
********************************************************************/
static void pdb_force_pw_initialization(SAM_ACCOUNT *pass)
{
const uint8 *lm_pwd, *nt_pwd;
/* only reset a password if the last set time has been
explicitly been set to zero. A default last set time
is ignored */
if ( (pdb_get_init_flags(pass, PDB_PASSLASTSET) != PDB_DEFAULT)
&& (pdb_get_pass_last_set_time(pass) == 0) )
{
if (pdb_get_init_flags(pass, PDB_LMPASSWD) != PDB_DEFAULT)
{
lm_pwd = pdb_get_lanman_passwd(pass);
if (lm_pwd)
pdb_set_lanman_passwd(pass, NULL, PDB_CHANGED);
}
if (pdb_get_init_flags(pass, PDB_NTPASSWD) != PDB_DEFAULT)
{
nt_pwd = pdb_get_nt_passwd(pass);
if (nt_pwd)
pdb_set_nt_passwd(pass, NULL, PDB_CHANGED);
}
}
return;
}
NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init)
{
struct pdb_init_function_entry *entry = backends;
if(version != PASSDB_INTERFACE_VERSION) {
DEBUG(0,("Can't register passdb backend!\n"
"You tried to register a passdb module with PASSDB_INTERFACE_VERSION %d, "
"while this version of samba uses version %d\n",
version,PASSDB_INTERFACE_VERSION));
return NT_STATUS_OBJECT_TYPE_MISMATCH;
}
if (!name || !init) {
return NT_STATUS_INVALID_PARAMETER;
}
DEBUG(5,("Attempting to register passdb backend %s\n", name));
/* Check for duplicates */
if (pdb_find_backend_entry(name)) {
DEBUG(0,("There already is a passdb backend registered with the name %s!\n", name));
return NT_STATUS_OBJECT_NAME_COLLISION;
}
entry = SMB_XMALLOC_P(struct pdb_init_function_entry);
entry->name = smb_xstrdup(name);
entry->init = init;
DLIST_ADD(backends, entry);
DEBUG(5,("Successfully added passdb backend '%s'\n", name));
return NT_STATUS_OK;
}
static struct pdb_init_function_entry *pdb_find_backend_entry(const char *name)
{
struct pdb_init_function_entry *entry = backends;
while(entry) {
if (strcmp(entry->name, name)==0) return entry;
entry = entry->next;
}
return NULL;
}
static NTSTATUS context_setsampwent(struct pdb_context *context, BOOL update, uint16 acb_mask)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if (!context) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
context->pwent_methods = context->pdb_methods;
if (!context->pwent_methods) {
/* No passdbs at all */
return ret;
}
while (NT_STATUS_IS_ERR(ret = context->pwent_methods->setsampwent(context->pwent_methods, update, acb_mask))) {
context->pwent_methods = context->pwent_methods->next;
if (context->pwent_methods == NULL)
return NT_STATUS_UNSUCCESSFUL;
}
return ret;
}
static void context_endsampwent(struct pdb_context *context)
{
if ((!context)){
DEBUG(0, ("invalid pdb_context specified!\n"));
return;
}
if (context->pwent_methods && context->pwent_methods->endsampwent)
context->pwent_methods->endsampwent(context->pwent_methods);
/* So we won't get strange data when calling getsampwent now */
context->pwent_methods = NULL;
}
static NTSTATUS context_getsampwent(struct pdb_context *context, SAM_ACCOUNT *user)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pwent_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
/* Loop until we find something useful */
while (NT_STATUS_IS_ERR(ret = context->pwent_methods->getsampwent(context->pwent_methods, user))) {
context->pwent_methods->endsampwent(context->pwent_methods);
context->pwent_methods = context->pwent_methods->next;
/* All methods are checked now. There are no more entries */
if (context->pwent_methods == NULL)
return ret;
context->pwent_methods->setsampwent(context->pwent_methods, False, 0);
}
user->methods = context->pwent_methods;
pdb_force_pw_initialization(user);
return ret;
}
static NTSTATUS context_getsampwnam(struct pdb_context *context, SAM_ACCOUNT *sam_acct, const char *username)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
struct pdb_methods *curmethods;
if ((!context)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
curmethods = context->pdb_methods;
while (curmethods){
if (NT_STATUS_IS_OK(ret = curmethods->getsampwnam(curmethods, sam_acct, username))) {
pdb_force_pw_initialization(sam_acct);
sam_acct->methods = curmethods;
return ret;
}
curmethods = curmethods->next;
}
return ret;
}
static NTSTATUS context_getsampwsid(struct pdb_context *context, SAM_ACCOUNT *sam_acct, const DOM_SID *sid)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
struct pdb_methods *curmethods;
if ((!context)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
curmethods = context->pdb_methods;
while (curmethods){
if (NT_STATUS_IS_OK(ret = curmethods->getsampwsid(curmethods, sam_acct, sid))) {
pdb_force_pw_initialization(sam_acct);
sam_acct->methods = curmethods;
return ret;
}
curmethods = curmethods->next;
}
return ret;
}
static NTSTATUS context_add_sam_account(struct pdb_context *context, SAM_ACCOUNT *sam_acct)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
const uint8 *lm_pw, *nt_pw;
uint16 acb_flags;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
/* disable acccounts with no passwords (that has not
been allowed by the ACB_PWNOTREQ bit */
lm_pw = pdb_get_lanman_passwd( sam_acct );
nt_pw = pdb_get_nt_passwd( sam_acct );
acb_flags = pdb_get_acct_ctrl( sam_acct );
if ( !lm_pw && !nt_pw && !(acb_flags&ACB_PWNOTREQ) ) {
acb_flags |= ACB_DISABLED;
pdb_set_acct_ctrl( sam_acct, acb_flags, PDB_CHANGED );
}
/** @todo This is where a 're-read on add' should be done */
/* We now add a new account to the first database listed.
* Should we? */
return context->pdb_methods->add_sam_account(context->pdb_methods, sam_acct);
}
static NTSTATUS context_update_sam_account(struct pdb_context *context, SAM_ACCOUNT *sam_acct)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
const uint8 *lm_pw, *nt_pw;
uint16 acb_flags;
if (!context) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
if (!sam_acct || !sam_acct->methods){
DEBUG(0, ("invalid sam_acct specified\n"));
return ret;
}
/* disable acccounts with no passwords (that has not
been allowed by the ACB_PWNOTREQ bit */
lm_pw = pdb_get_lanman_passwd( sam_acct );
nt_pw = pdb_get_nt_passwd( sam_acct );
acb_flags = pdb_get_acct_ctrl( sam_acct );
if ( !lm_pw && !nt_pw && !(acb_flags&ACB_PWNOTREQ) ) {
acb_flags |= ACB_DISABLED;
pdb_set_acct_ctrl( sam_acct, acb_flags, PDB_CHANGED );
}
/** @todo This is where a 're-read on update' should be done */
return sam_acct->methods->update_sam_account(sam_acct->methods, sam_acct);
}
static NTSTATUS context_delete_sam_account(struct pdb_context *context, SAM_ACCOUNT *sam_acct)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
struct pdb_methods *pdb_selected;
if (!context) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
if (!sam_acct->methods){
pdb_selected = context->pdb_methods;
/* There's no passdb backend specified for this account.
* Try to delete it in every passdb available
* Needed to delete accounts in smbpasswd that are not
* in /etc/passwd.
*/
while (pdb_selected){
if (NT_STATUS_IS_OK(ret = pdb_selected->delete_sam_account(pdb_selected, sam_acct))) {
return ret;
}
pdb_selected = pdb_selected->next;
}
return ret;
}
if (!sam_acct->methods->delete_sam_account){
DEBUG(0,("invalid sam_acct->methods->delete_sam_account\n"));
return ret;
}
return sam_acct->methods->delete_sam_account(sam_acct->methods, sam_acct);
}
static NTSTATUS context_update_login_attempts(struct pdb_context *context,
SAM_ACCOUNT *sam_acct, BOOL success)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if (!context) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
if (!sam_acct || !sam_acct->methods){
DEBUG(0, ("invalid sam_acct specified\n"));
return ret;
}
return sam_acct->methods->update_login_attempts(sam_acct->methods, sam_acct, success);
}
static NTSTATUS context_getgrsid(struct pdb_context *context,
GROUP_MAP *map, DOM_SID sid)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
struct pdb_methods *curmethods;
if ((!context)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
curmethods = context->pdb_methods;
while (curmethods){
ret = curmethods->getgrsid(curmethods, map, sid);
if (NT_STATUS_IS_OK(ret)) {
map->methods = curmethods;
return ret;
}
curmethods = curmethods->next;
}
return ret;
}
static NTSTATUS context_getgrgid(struct pdb_context *context,
GROUP_MAP *map, gid_t gid)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
struct pdb_methods *curmethods;
if ((!context)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
curmethods = context->pdb_methods;
while (curmethods){
ret = curmethods->getgrgid(curmethods, map, gid);
if (NT_STATUS_IS_OK(ret)) {
map->methods = curmethods;
return ret;
}
curmethods = curmethods->next;
}
return ret;
}
static NTSTATUS context_getgrnam(struct pdb_context *context,
GROUP_MAP *map, const char *name)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
struct pdb_methods *curmethods;
if ((!context)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
curmethods = context->pdb_methods;
while (curmethods){
ret = curmethods->getgrnam(curmethods, map, name);
if (NT_STATUS_IS_OK(ret)) {
map->methods = curmethods;
return ret;
}
curmethods = curmethods->next;
}
return ret;
}
static NTSTATUS context_add_group_mapping_entry(struct pdb_context *context,
GROUP_MAP *map)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->add_group_mapping_entry(context->pdb_methods,
map);
}
static NTSTATUS context_update_group_mapping_entry(struct pdb_context *context,
GROUP_MAP *map)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->
pdb_methods->update_group_mapping_entry(context->pdb_methods, map);
}
static NTSTATUS context_delete_group_mapping_entry(struct pdb_context *context,
DOM_SID sid)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->
pdb_methods->delete_group_mapping_entry(context->pdb_methods, sid);
}
static NTSTATUS context_enum_group_mapping(struct pdb_context *context,
enum SID_NAME_USE sid_name_use,
GROUP_MAP **rmap, int *num_entries,
BOOL unix_only)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->enum_group_mapping(context->pdb_methods,
sid_name_use, rmap,
num_entries, unix_only);
}
static NTSTATUS context_enum_group_members(struct pdb_context *context,
TALLOC_CTX *mem_ctx,
const DOM_SID *group,
uint32 **member_rids,
int *num_members)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->enum_group_members(context->pdb_methods,
mem_ctx, group,
member_rids,
num_members);
}
static NTSTATUS context_enum_group_memberships(struct pdb_context *context,
const char *username,
gid_t primary_gid,
DOM_SID **sids, gid_t **gids,
int *num_groups)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->
enum_group_memberships(context->pdb_methods, username,
primary_gid, sids, gids, num_groups);
}
static NTSTATUS context_find_alias(struct pdb_context *context,
const char *name, DOM_SID *sid)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->find_alias(context->pdb_methods,
name, sid);
}
static NTSTATUS context_create_alias(struct pdb_context *context,
const char *name, uint32 *rid)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->create_alias(context->pdb_methods,
name, rid);
}
static NTSTATUS context_delete_alias(struct pdb_context *context,
const DOM_SID *sid)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->delete_alias(context->pdb_methods, sid);
}
static NTSTATUS context_enum_aliases(struct pdb_context *context,
const DOM_SID *sid,
uint32 start_idx, uint32 max_entries,
uint32 *num_aliases,
struct acct_info **info)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->enum_aliases(context->pdb_methods,
sid, start_idx, max_entries,
num_aliases, info);
}
static NTSTATUS context_get_aliasinfo(struct pdb_context *context,
const DOM_SID *sid,
struct acct_info *info)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->get_aliasinfo(context->pdb_methods,
sid, info);
}
static NTSTATUS context_set_aliasinfo(struct pdb_context *context,
const DOM_SID *sid,
struct acct_info *info)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->set_aliasinfo(context->pdb_methods,
sid, info);
}
static NTSTATUS context_add_aliasmem(struct pdb_context *context,
const DOM_SID *alias,
const DOM_SID *member)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->add_aliasmem(context->pdb_methods,
alias, member);
}
static NTSTATUS context_del_aliasmem(struct pdb_context *context,
const DOM_SID *alias,
const DOM_SID *member)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->del_aliasmem(context->pdb_methods,
alias, member);
}
static NTSTATUS context_enum_aliasmem(struct pdb_context *context,
const DOM_SID *alias, DOM_SID **members,
int *num)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->enum_aliasmem(context->pdb_methods,
alias, members, num);
}
static NTSTATUS context_enum_alias_memberships(struct pdb_context *context,
TALLOC_CTX *mem_ctx,
const DOM_SID *domain_sid,
const DOM_SID *members,
int num_members,
uint32 **alias_rids,
int *num_alias_rids)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->
enum_alias_memberships(context->pdb_methods, mem_ctx,
domain_sid, members, num_members,
alias_rids, num_alias_rids);
}
static NTSTATUS context_lookup_rids(struct pdb_context *context,
TALLOC_CTX *mem_ctx,
const DOM_SID *domain_sid,
int num_rids,
uint32 *rids,
const char ***names,
uint32 **attrs)
{
NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
if ((!context) || (!context->pdb_methods)) {
DEBUG(0, ("invalid pdb_context specified!\n"));
return ret;
}
return context->pdb_methods->lookup_rids(context->pdb_methods,
mem_ctx, domain_sid, num_rids,
rids, names, attrs);
}
/******************************************************************
Free and cleanup a pdb context, any associated data and anything
that the attached modules might have associated.
*******************************************************************/
static void free_pdb_context(struct pdb_context **context)
{
struct pdb_methods *pdb_selected = (*context)->pdb_methods;
while (pdb_selected){
if(pdb_selected->free_private_data)
pdb_selected->free_private_data(&(pdb_selected->private_data));
pdb_selected = pdb_selected->next;
}
talloc_destroy((*context)->mem_ctx);
*context = NULL;
}
/******************************************************************
Make a pdb_methods from scratch
*******************************************************************/
static NTSTATUS make_pdb_methods_name(struct pdb_methods **methods, struct pdb_context *context, const char *selected)
{
char *module_name = smb_xstrdup(selected);
char *module_location = NULL, *p;
struct pdb_init_function_entry *entry;
NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
lazy_initialize_passdb();
p = strchr(module_name, ':');
if (p) {
*p = 0;
module_location = p+1;
trim_char(module_location, ' ', ' ');
}
trim_char(module_name, ' ', ' ');
DEBUG(5,("Attempting to find an passdb backend to match %s (%s)\n", selected, module_name));
entry = pdb_find_backend_entry(module_name);
/* Try to find a module that contains this module */
if (!entry) {
DEBUG(2,("No builtin backend found, trying to load plugin\n"));
if(NT_STATUS_IS_OK(smb_probe_module("pdb", module_name)) && !(entry = pdb_find_backend_entry(module_name))) {
DEBUG(0,("Plugin is available, but doesn't register passdb backend %s\n", module_name));
SAFE_FREE(module_name);
return NT_STATUS_UNSUCCESSFUL;
}
}
/* No such backend found */
if(!entry) {
DEBUG(0,("No builtin nor plugin backend for %s found\n", module_name));
SAFE_FREE(module_name);
return NT_STATUS_INVALID_PARAMETER;
}
DEBUG(5,("Found pdb backend %s\n", module_name));
nt_status = entry->init(context, methods, module_location);
if (NT_STATUS_IS_OK(nt_status)) {
DEBUG(5,("pdb backend %s has a valid init\n", selected));
} else {
DEBUG(0,("pdb backend %s did not correctly init (error was %s)\n", selected, nt_errstr(nt_status)));
}
SAFE_FREE(module_name);
return nt_status;
}
/******************************************************************
Make a pdb_context from scratch.
*******************************************************************/
static NTSTATUS make_pdb_context(struct pdb_context **context)
{
TALLOC_CTX *mem_ctx;
mem_ctx = talloc_init("pdb_context internal allocation context");
if (!mem_ctx) {
DEBUG(0, ("make_pdb_context: talloc init failed!\n"));
return NT_STATUS_NO_MEMORY;
}
*context = TALLOC_P(mem_ctx, struct pdb_context);
if (!*context) {
DEBUG(0, ("make_pdb_context: talloc failed!\n"));
return NT_STATUS_NO_MEMORY;
}
ZERO_STRUCTP(*context);
(*context)->mem_ctx = mem_ctx;
(*context)->pdb_setsampwent = context_setsampwent;
(*context)->pdb_endsampwent = context_endsampwent;
(*context)->pdb_getsampwent = context_getsampwent;
(*context)->pdb_getsampwnam = context_getsampwnam;
(*context)->pdb_getsampwsid = context_getsampwsid;
(*context)->pdb_add_sam_account = context_add_sam_account;
(*context)->pdb_update_sam_account = context_update_sam_account;
(*context)->pdb_delete_sam_account = context_delete_sam_account;
(*context)->pdb_update_login_attempts = context_update_login_attempts;
(*context)->pdb_getgrsid = context_getgrsid;
(*context)->pdb_getgrgid = context_getgrgid;
(*context)->pdb_getgrnam = context_getgrnam;
(*context)->pdb_add_group_mapping_entry = context_add_group_mapping_entry;
(*context)->pdb_update_group_mapping_entry = context_update_group_mapping_entry;
(*context)->pdb_delete_group_mapping_entry = context_delete_group_mapping_entry;
(*context)->pdb_enum_group_mapping = context_enum_group_mapping;
(*context)->pdb_enum_group_members = context_enum_group_members;
(*context)->pdb_enum_group_memberships = context_enum_group_memberships;
(*context)->pdb_find_alias = context_find_alias;
(*context)->pdb_create_alias = context_create_alias;
(*context)->pdb_delete_alias = context_delete_alias;
(*context)->pdb_enum_aliases = context_enum_aliases;
(*context)->pdb_get_aliasinfo = context_get_aliasinfo;
(*context)->pdb_set_aliasinfo = context_set_aliasinfo;
(*context)->pdb_add_aliasmem = context_add_aliasmem;
(*context)->pdb_del_aliasmem = context_del_aliasmem;
(*context)->pdb_enum_aliasmem = context_enum_aliasmem;
(*context)->pdb_enum_alias_memberships = context_enum_alias_memberships;
(*context)->pdb_lookup_rids = context_lookup_rids;
(*context)->free_fn = free_pdb_context;
return NT_STATUS_OK;
}
/******************************************************************
Make a pdb_context, given an array of strings
*******************************************************************/
NTSTATUS make_pdb_context_list(struct pdb_context **context, const char **selected)
{
int i = 0;
struct pdb_methods *curmethods, *tmpmethods;
NTSTATUS nt_status = NT_STATUS_UNSUCCESSFUL;
BOOL have_guest = False;
if (!NT_STATUS_IS_OK(nt_status = make_pdb_context(context))) {
return nt_status;
}
if (!selected) {
DEBUG(0, ("ERROR: empty passdb backend list!\n"));
return nt_status;
}
while (selected[i]){
if (strcmp(selected[i], "guest") == 0) {
have_guest = True;
}
/* Try to initialise pdb */
DEBUG(5,("Trying to load: %s\n", selected[i]));
if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods_name(&curmethods, *context, selected[i]))) {
DEBUG(1, ("Loading %s failed!\n", selected[i]));
free_pdb_context(context);
return nt_status;
}
curmethods->parent = *context;
DLIST_ADD_END((*context)->pdb_methods, curmethods, tmpmethods);
i++;
}
if (have_guest)
return NT_STATUS_OK;
if ( (lp_guestaccount() == NULL) ||
(*lp_guestaccount() == '\0') ) {
/* We explicitly don't want guest access. No idea what
else that breaks, but be it that way. */
return NT_STATUS_OK;
}
if (!NT_STATUS_IS_OK(nt_status = make_pdb_methods_name(&curmethods,
*context,
"guest"))) {
DEBUG(1, ("Loading guest module failed!\n"));
free_pdb_context(context);
return nt_status;
}
curmethods->parent = *context;
DLIST_ADD_END((*context)->pdb_methods, curmethods, tmpmethods);
return NT_STATUS_OK;
}
/******************************************************************
Make a pdb_context, given a text string.
*******************************************************************/
NTSTATUS make_pdb_context_string(struct pdb_context **context, const char *selected)
{
NTSTATUS ret;
char **newsel = str_list_make(selected, NULL);
ret = make_pdb_context_list(context, (const char **)newsel);
str_list_free(&newsel);
return ret;
}
/******************************************************************
Return an already initialised pdb_context, to facilitate backward
compatibility (see functions below).
*******************************************************************/
static struct pdb_context *pdb_get_static_context(BOOL reload)
{
static struct pdb_context *pdb_context = NULL;
if ((pdb_context) && (reload)) {
pdb_context->free_fn(&pdb_context);
if (!NT_STATUS_IS_OK(make_pdb_context_list(&pdb_context, lp_passdb_backend()))) {
return NULL;
}
}
if (!pdb_context) {
if (!NT_STATUS_IS_OK(make_pdb_context_list(&pdb_context, lp_passdb_backend()))) {
return NULL;
}
}
return pdb_context;
}
/******************************************************************
Backward compatibility functions for the original passdb interface
*******************************************************************/
BOOL pdb_setsampwent(BOOL update, uint16 acb_mask)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->pdb_setsampwent(pdb_context, update, acb_mask));
}
void pdb_endsampwent(void)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return;
}
pdb_context->pdb_endsampwent(pdb_context);
}
BOOL pdb_getsampwent(SAM_ACCOUNT *user)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->pdb_getsampwent(pdb_context, user));
}
static SAM_ACCOUNT *sam_account_cache = NULL;
BOOL pdb_getsampwnam(SAM_ACCOUNT *sam_acct, const char *username)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
if (!NT_STATUS_IS_OK(pdb_context->pdb_getsampwnam(pdb_context,
sam_acct, username)))
return False;
if (sam_account_cache != NULL) {
pdb_free_sam(&sam_account_cache);
sam_account_cache = NULL;
}
pdb_copy_sam_account(sam_acct, &sam_account_cache);
return True;
}
BOOL pdb_getsampwsid(SAM_ACCOUNT *sam_acct, const DOM_SID *sid)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
if ((sam_account_cache != NULL) &&
(sid_equal(sid, pdb_get_user_sid(sam_account_cache))))
return pdb_copy_sam_account(sam_account_cache, &sam_acct);
return NT_STATUS_IS_OK(pdb_context->pdb_getsampwsid(pdb_context, sam_acct, sid));
}
BOOL pdb_add_sam_account(SAM_ACCOUNT *sam_acct)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->pdb_add_sam_account(pdb_context, sam_acct));
}
BOOL pdb_update_sam_account(SAM_ACCOUNT *sam_acct)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
if (sam_account_cache != NULL) {
pdb_free_sam(&sam_account_cache);
sam_account_cache = NULL;
}
return NT_STATUS_IS_OK(pdb_context->pdb_update_sam_account(pdb_context, sam_acct));
}
BOOL pdb_delete_sam_account(SAM_ACCOUNT *sam_acct)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
if (sam_account_cache != NULL) {
pdb_free_sam(&sam_account_cache);
sam_account_cache = NULL;
}
return NT_STATUS_IS_OK(pdb_context->pdb_delete_sam_account(pdb_context, sam_acct));
}
NTSTATUS pdb_update_login_attempts(SAM_ACCOUNT *sam_acct, BOOL success)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return NT_STATUS_NOT_IMPLEMENTED;
}
return pdb_context->pdb_update_login_attempts(pdb_context, sam_acct, success);
}
BOOL pdb_getgrsid(GROUP_MAP *map, DOM_SID sid)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->
pdb_getgrsid(pdb_context, map, sid));
}
BOOL pdb_getgrgid(GROUP_MAP *map, gid_t gid)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->
pdb_getgrgid(pdb_context, map, gid));
}
BOOL pdb_getgrnam(GROUP_MAP *map, const char *name)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->
pdb_getgrnam(pdb_context, map, name));
}
BOOL pdb_add_group_mapping_entry(GROUP_MAP *map)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->
pdb_add_group_mapping_entry(pdb_context, map));
}
BOOL pdb_update_group_mapping_entry(GROUP_MAP *map)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->
pdb_update_group_mapping_entry(pdb_context, map));
}
BOOL pdb_delete_group_mapping_entry(DOM_SID sid)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->
pdb_delete_group_mapping_entry(pdb_context, sid));
}
BOOL pdb_enum_group_mapping(enum SID_NAME_USE sid_name_use, GROUP_MAP **rmap,
int *num_entries, BOOL unix_only)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->
pdb_enum_group_mapping(pdb_context, sid_name_use,
rmap, num_entries, unix_only));
}
NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx,
const DOM_SID *sid,
uint32 **member_rids,
int *num_members)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return NT_STATUS_UNSUCCESSFUL;
}
return pdb_context->pdb_enum_group_members(pdb_context, mem_ctx, sid,
member_rids, num_members);
}
NTSTATUS pdb_enum_group_memberships(const char *username, gid_t primary_gid,
DOM_SID **sids, gid_t **gids,
int *num_groups)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return NT_STATUS_UNSUCCESSFUL;
}
return pdb_context->pdb_enum_group_memberships(pdb_context, username,
primary_gid, sids, gids,
num_groups);
}
BOOL pdb_find_alias(const char *name, DOM_SID *sid)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->pdb_find_alias(pdb_context,
name, sid));
}
NTSTATUS pdb_create_alias(const char *name, uint32 *rid)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return NT_STATUS_NOT_IMPLEMENTED;
}
return pdb_context->pdb_create_alias(pdb_context, name, rid);
}
BOOL pdb_delete_alias(const DOM_SID *sid)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->pdb_delete_alias(pdb_context,
sid));
}
BOOL pdb_enum_aliases(const DOM_SID *sid, uint32 start_idx, uint32 max_entries,
uint32 *num_aliases, struct acct_info **info)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->pdb_enum_aliases(pdb_context, sid,
start_idx,
max_entries,
num_aliases,
info));
}
BOOL pdb_get_aliasinfo(const DOM_SID *sid, struct acct_info *info)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->pdb_get_aliasinfo(pdb_context, sid,
info));
}
BOOL pdb_set_aliasinfo(const DOM_SID *sid, struct acct_info *info)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->pdb_set_aliasinfo(pdb_context, sid,
info));
}
BOOL pdb_add_aliasmem(const DOM_SID *alias, const DOM_SID *member)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->
pdb_add_aliasmem(pdb_context, alias, member));
}
BOOL pdb_del_aliasmem(const DOM_SID *alias, const DOM_SID *member)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->
pdb_del_aliasmem(pdb_context, alias, member));
}
BOOL pdb_enum_aliasmem(const DOM_SID *alias,
DOM_SID **members, int *num_members)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->
pdb_enum_aliasmem(pdb_context, alias,
members, num_members));
}
BOOL pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx, const DOM_SID *domain_sid,
const DOM_SID *members, int num_members,
uint32 **alias_rids, int *num_alias_rids)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return False;
}
return NT_STATUS_IS_OK(pdb_context->
pdb_enum_alias_memberships(pdb_context, mem_ctx,
domain_sid,
members, num_members,
alias_rids,
num_alias_rids));
}
NTSTATUS pdb_lookup_rids(TALLOC_CTX *mem_ctx,
const DOM_SID *domain_sid,
int num_rids,
uint32 *rids,
const char ***names,
uint32 **attrs)
{
struct pdb_context *pdb_context = pdb_get_static_context(False);
if (!pdb_context) {
return NT_STATUS_NOT_IMPLEMENTED;
}
return pdb_context->pdb_lookup_rids(pdb_context, mem_ctx, domain_sid,
num_rids, rids, names, attrs);
}
/***************************************************************
Initialize the static context (at smbd startup etc).
If uninitialised, context will auto-init on first use.
***************************************************************/
BOOL initialize_password_db(BOOL reload)
{
return (pdb_get_static_context(reload) != NULL);
}
/***************************************************************************
Default implementations of some functions.
****************************************************************************/
static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, SAM_ACCOUNT *user, const char *sname)
{
return NT_STATUS_NO_SUCH_USER;
}
static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, SAM_ACCOUNT * user, const DOM_SID *sid)
{
return NT_STATUS_NO_SUCH_USER;
}
static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, SAM_ACCOUNT *newpwd)
{
DEBUG(0,("this backend (%s) should not be listed as the first passdb backend! You can't add users to it.\n", methods->name));
return NT_STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, SAM_ACCOUNT *newpwd)
{
return NT_STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, SAM_ACCOUNT *pwd)
{
return NT_STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, SAM_ACCOUNT *newpwd, BOOL success)
{
return NT_STATUS_OK;
}
static NTSTATUS pdb_default_setsampwent(struct pdb_methods *methods, BOOL update, uint16 acb_mask)
{
return NT_STATUS_NOT_IMPLEMENTED;
}
static NTSTATUS pdb_default_getsampwent(struct pdb_methods *methods, SAM_ACCOUNT *user)
{
return NT_STATUS_NOT_IMPLEMENTED;
}
static void pdb_default_endsampwent(struct pdb_methods *methods)
{
return; /* NT_STATUS_NOT_IMPLEMENTED; */
}
static void add_uid_to_array_unique(TALLOC_CTX *mem_ctx,
uid_t uid, uid_t **uids, int *num)
{
int i;
for (i=0; i<*num; i++) {
if ((*uids)[i] == uid)
return;
}
*uids = TALLOC_REALLOC_ARRAY(mem_ctx, *uids, uid_t, *num+1);
if (*uids == NULL)
return;
(*uids)[*num] = uid;
*num += 1;
}
static BOOL get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **uids,
int *num)
{
struct group *grp;
char **gr;
struct sys_pwent *userlist, *user;
*uids = NULL;
*num = 0;
/* We only look at our own sam, so don't care about imported stuff */
winbind_off();
if ((grp = getgrgid(gid)) == NULL) {
winbind_on();
return False;
}
/* Primary group members */
userlist = getpwent_list();
for (user = userlist; user != NULL; user = user->next) {
if (user->pw_gid != gid)
continue;
add_uid_to_array_unique(mem_ctx, user->pw_uid, uids, num);
}
pwent_free(userlist);
/* Secondary group members */
for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) {
struct passwd *pw = getpwnam(*gr);
if (pw == NULL)
continue;
add_uid_to_array_unique(mem_ctx, pw->pw_uid, uids, num);
}
winbind_on();
return True;
}
NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods,
TALLOC_CTX *mem_ctx,
const DOM_SID *group,
uint32 **member_rids,
int *num_members)
{
gid_t gid;
uid_t *uids;
int i, num_uids;
*member_rids = NULL;
*num_members = 0;
if (!NT_STATUS_IS_OK(sid_to_gid(group, &gid)))
return NT_STATUS_NO_SUCH_GROUP;
if(!get_memberuids(mem_ctx, gid, &uids, &num_uids))
return NT_STATUS_NO_SUCH_GROUP;
if (num_uids == 0)
return NT_STATUS_OK;
*member_rids = TALLOC_ZERO_ARRAY(mem_ctx, uint32, num_uids);
for (i=0; i<num_uids; i++) {
DOM_SID sid;
if (!NT_STATUS_IS_OK(uid_to_sid(&sid, uids[i]))) {
DEBUG(1, ("Could not map member uid to SID\n"));
continue;
}
if (!sid_check_is_in_our_domain(&sid)) {
DEBUG(1, ("Inconsistent SAM -- group member uid not "
"in our domain\n"));
continue;
}
sid_peek_rid(&sid, &(*member_rids)[*num_members]);
*num_members += 1;
}
return NT_STATUS_OK;
}
NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods,
TALLOC_CTX *mem_ctx,
const DOM_SID *domain_sid,
int num_rids,
uint32 *rids,
const char ***names,
uint32 **attrs)
{
int i;
NTSTATUS result;
BOOL have_mapped = False;
BOOL have_unmapped = False;
(*names) = TALLOC_ZERO_ARRAY(mem_ctx, const char *, num_rids);
(*attrs) = TALLOC_ZERO_ARRAY(mem_ctx, uint32, num_rids);
if ((num_rids != 0) && (((*names) == NULL) || ((*attrs) == NULL)))
return NT_STATUS_NO_MEMORY;
if (!sid_equal(domain_sid, get_global_sam_sid())) {
/* TODO: Sooner or later we need to look up BUILTIN rids as
* well. -- vl */
goto done;
}
for (i = 0; i < num_rids; i++) {
fstring tmpname;
fstring domname;
DOM_SID sid;
enum SID_NAME_USE type;
(*attrs)[i] = SID_NAME_UNKNOWN;
sid_copy(&sid, domain_sid);
sid_append_rid(&sid, rids[i]);
if (lookup_sid(&sid, domname, tmpname, &type)) {
(*attrs)[i] = (uint32)type;
(*names)[i] = talloc_strdup(mem_ctx, tmpname);
if ((*names)[i] == NULL)
return NT_STATUS_NO_MEMORY;
DEBUG(5,("lookup_rids: %s:%d\n", (*names)[i],
(*attrs)[i]));
have_mapped = True;
} else {
have_unmapped = True;
}
}
done:
result = NT_STATUS_NONE_MAPPED;
if (have_mapped)
result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK;
return result;
}
NTSTATUS make_pdb_methods(TALLOC_CTX *mem_ctx, PDB_METHODS **methods)
{
*methods = TALLOC_P(mem_ctx, struct pdb_methods);
if (!*methods) {
return NT_STATUS_NO_MEMORY;
}
ZERO_STRUCTP(*methods);
(*methods)->setsampwent = pdb_default_setsampwent;
(*methods)->endsampwent = pdb_default_endsampwent;
(*methods)->getsampwent = pdb_default_getsampwent;
(*methods)->getsampwnam = pdb_default_getsampwnam;
(*methods)->getsampwsid = pdb_default_getsampwsid;
(*methods)->add_sam_account = pdb_default_add_sam_account;
(*methods)->update_sam_account = pdb_default_update_sam_account;
(*methods)->delete_sam_account = pdb_default_delete_sam_account;
(*methods)->update_login_attempts = pdb_default_update_login_attempts;
(*methods)->getgrsid = pdb_default_getgrsid;
(*methods)->getgrgid = pdb_default_getgrgid;
(*methods)->getgrnam = pdb_default_getgrnam;
(*methods)->add_group_mapping_entry = pdb_default_add_group_mapping_entry;
(*methods)->update_group_mapping_entry = pdb_default_update_group_mapping_entry;
(*methods)->delete_group_mapping_entry = pdb_default_delete_group_mapping_entry;
(*methods)->enum_group_mapping = pdb_default_enum_group_mapping;
(*methods)->enum_group_members = pdb_default_enum_group_members;
(*methods)->enum_group_memberships = pdb_default_enum_group_memberships;
(*methods)->find_alias = pdb_default_find_alias;
(*methods)->create_alias = pdb_default_create_alias;
(*methods)->delete_alias = pdb_default_delete_alias;
(*methods)->enum_aliases = pdb_default_enum_aliases;
(*methods)->get_aliasinfo = pdb_default_get_aliasinfo;
(*methods)->set_aliasinfo = pdb_default_set_aliasinfo;
(*methods)->add_aliasmem = pdb_default_add_aliasmem;
(*methods)->del_aliasmem = pdb_default_del_aliasmem;
(*methods)->enum_aliasmem = pdb_default_enum_aliasmem;
(*methods)->enum_alias_memberships = pdb_default_alias_memberships;
(*methods)->lookup_rids = pdb_default_lookup_rids;
return NT_STATUS_OK;
}
struct pdb_search *pdb_search_users(uint16 acct_flags);
struct pdb_search *pdb_search_groups(void);
struct pdb_search *pdb_search_aliases(const DOM_SID *sid);
uint32 pdb_search_entries(struct pdb_search *search, uint32 start_idx, uint32 max_entries, struct samr_displayentry **result);
void pdb_search_destroy(struct pdb_search *search);
static struct pdb_search *pdb_search_init(enum pdb_search_type type)
{
TALLOC_CTX *mem_ctx;
struct pdb_search *result;
mem_ctx = talloc_init("pdb_search");
if (mem_ctx == NULL) {
DEBUG(0, ("talloc_init failed\n"));
return NULL;
}
result = TALLOC_P(mem_ctx, struct pdb_search);
if (result == NULL) {
DEBUG(0, ("talloc failed\n"));
return NULL;
}
result->mem_ctx = mem_ctx;
result->type = type;
result->cache = NULL;
result->cache_size = 0;
result->search_ended = False;
return result;
}
static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32 rid,
uint16 acct_flags,
const char *account_name,
const char *fullname,
const char *description,
struct samr_displayentry *entry)
{
entry->rid = rid;
entry->acct_flags = acct_flags;
if (account_name != NULL)
entry->account_name = talloc_strdup(mem_ctx, account_name);
if (fullname != NULL)
entry->fullname = talloc_strdup(mem_ctx, fullname);
if (description != NULL)
entry->description = talloc_strdup(mem_ctx, description);
}
static BOOL user_search_in_progress = False;
struct user_search {
uint16 acct_flags;
};
struct pdb_search *pdb_search_users(uint16 acct_flags)
{
struct pdb_search *result;
struct user_search *state;
if (user_search_in_progress) {
DEBUG(1, ("user search in progress\n"));
return NULL;
}
if (!pdb_setsampwent(False, acct_flags))
return NULL;
user_search_in_progress = True;
result = pdb_search_init(PDB_USER_SEARCH);
if (result == NULL)
return NULL;
state = TALLOC_P(result->mem_ctx, struct user_search);
if (state == NULL) {
DEBUG(0, ("talloc failed\n"));
talloc_destroy(result->mem_ctx);
return NULL;
}
state->acct_flags = acct_flags;
result->private = state;
return result;
}
static BOOL pdb_search_entry_users(struct pdb_search *s, TALLOC_CTX *mem_ctx,
struct samr_displayentry *entry)
{
struct user_search *state = s->private;
SAM_ACCOUNT *user = NULL;
NTSTATUS status;
next:
status = pdb_init_sam(&user);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(0, ("Could not pdb_init_sam\n"));
return False;
}
if (!pdb_getsampwent(user)) {
pdb_free_sam(&user);
return False;
}
if ((state->acct_flags != 0) &&
((pdb_get_acct_ctrl(user) & state->acct_flags) == 0)) {
pdb_free_sam(&user);
goto next;
}
fill_displayentry(mem_ctx, pdb_get_user_rid(user),
pdb_get_acct_ctrl(user), pdb_get_username(user),
pdb_get_fullname(user), pdb_get_acct_desc(user),
entry);
pdb_free_sam(&user);
return True;
}
static void pdb_search_end_users(struct pdb_search *search)
{
pdb_endsampwent();
user_search_in_progress = False;
}
struct group_search {
GROUP_MAP *groups;
int num_groups, current_group;
};
struct pdb_search *pdb_search_groups(void)
{
struct pdb_search *result;
struct group_search *state;
result = pdb_search_init(PDB_GROUP_SEARCH);
if (result == NULL)
return NULL;
state = TALLOC_P(result->mem_ctx, struct group_search);
if (state == NULL) {
DEBUG(0, ("talloc failed\n"));
talloc_destroy(result->mem_ctx);
return NULL;
}
if (!pdb_enum_group_mapping(SID_NAME_DOM_GRP, &state->groups,
&state->num_groups, True)) {
DEBUG(0, ("Could not enum groups\n"));
talloc_destroy(result->mem_ctx);
return NULL;
}
state->current_group = 0;
result->private = state;
return result;
}
static BOOL pdb_search_entry_group(struct pdb_search *s, TALLOC_CTX *mem_ctx,
struct samr_displayentry *entry)
{
struct group_search *state = s->private;
uint32 rid;
GROUP_MAP *map = &state->groups[state->current_group];
if (state->current_group == state->num_groups)
return False;
sid_peek_rid(&map->sid, &rid);
fill_displayentry(mem_ctx, rid, 0, map->nt_name, NULL, map->comment,
entry);
state->current_group += 1;
return True;
}
static void pdb_search_end_groups(struct pdb_search *search)
{
struct group_search *state = search->private;
SAFE_FREE(state->groups);
}
struct alias_search {
GROUP_MAP *aliases;
int num_aliases, current_alias;
};
struct pdb_search *pdb_search_aliases(const DOM_SID *sid)
{
struct pdb_search *result;
struct alias_search *state;
enum SID_NAME_USE type = SID_NAME_UNKNOWN;
DOM_SID builtin_sid;
if (sid_equal(sid, get_global_sam_sid()))
type = SID_NAME_ALIAS;
string_to_sid(&builtin_sid, "S-1-5-32");
if (sid_equal(sid, &builtin_sid))
type = SID_NAME_WKN_GRP;
if (type == SID_NAME_UNKNOWN) {
DEBUG(3, ("unknown domain sid: %s\n", sid_string_static(sid)));
return NULL;
}
result = pdb_search_init(PDB_ALIAS_SEARCH);
if (result == NULL)
return NULL;
state = TALLOC_P(result->mem_ctx, struct alias_search);
if (state == NULL) {
DEBUG(0, ("talloc failed\n"));
talloc_destroy(result->mem_ctx);
return NULL;
}
if (!pdb_enum_group_mapping(type, &state->aliases,
&state->num_aliases, False)) {
DEBUG(0, ("Could not enum aliases\n"));
talloc_destroy(result->mem_ctx);
return NULL;
}
state->current_alias = 0;
result->private = state;
return result;
}
static BOOL pdb_search_entry_alias(struct pdb_search *s, TALLOC_CTX *mem_ctx,
struct samr_displayentry *entry)
{
struct alias_search *state = s->private;
uint32 rid;
GROUP_MAP *map = &state->aliases[state->current_alias];
if (state->current_alias == state->num_aliases)
return False;
sid_peek_rid(&map->sid, &rid);
fill_displayentry(mem_ctx, rid, 0, map->nt_name, NULL, map->comment,
entry);
state->current_alias += 1;
return True;
}
static void pdb_search_end_aliases(struct pdb_search *search)
{
struct alias_search *state = search->private;
SAFE_FREE(state->aliases);
}
static BOOL pdb_search_entry(struct pdb_search *search, TALLOC_CTX *mem_ctx,
struct samr_displayentry *entry)
{
BOOL result = False;
switch (search->type) {
case PDB_USER_SEARCH:
result = pdb_search_entry_users(search, mem_ctx, entry);
break;
case PDB_GROUP_SEARCH:
result = pdb_search_entry_group(search, mem_ctx, entry);
break;
case PDB_ALIAS_SEARCH:
result = pdb_search_entry_alias(search, mem_ctx, entry);
break;
default:
DEBUG(0, ("unknown search type: %d\n", search->type));
break;
}
return result;
}
static void pdb_search_end(struct pdb_search *search)
{
switch (search->type) {
case PDB_USER_SEARCH:
pdb_search_end_users(search);
break;
case PDB_GROUP_SEARCH:
pdb_search_end_groups(search);
break;
case PDB_ALIAS_SEARCH:
pdb_search_end_aliases(search);
break;
default:
DEBUG(0, ("unknown search type: %d\n", search->type));
break;
}
}
static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search,
uint32 idx)
{
if (idx < search->cache_size)
return &search->cache[idx];
if (search->search_ended)
return NULL;
while (idx >= search->cache_size) {
struct samr_displayentry entry;
if (!pdb_search_entry(search, search->mem_ctx, &entry)) {
pdb_search_end(search);
search->search_ended = True;
break;
}
ADD_TO_ARRAY(search->mem_ctx, struct samr_displayentry,
entry, &search->cache, &search->cache_size);
}
return (search->cache_size > idx) ? &search->cache[idx] : NULL;
}
uint32 pdb_search_entries(struct pdb_search *search,
uint32 start_idx, uint32 max_entries,
struct samr_displayentry **result)
{
struct samr_displayentry *end_entry;
uint32 end_idx = start_idx+max_entries-1;
/* The first entry needs to be searched after the last. Otherwise the
* first entry might have moved due to a realloc during the search for
* the last entry. */
end_entry = pdb_search_getentry(search, end_idx);
*result = pdb_search_getentry(search, start_idx);
if (end_entry != NULL)
return max_entries;
if (start_idx >= search->cache_size)
return 0;
return search->cache_size - start_idx;
}
void pdb_search_destroy(struct pdb_search *search)
{
if (search == NULL)
return;
if (!search->search_ended)
pdb_search_end(search);
talloc_destroy(search->mem_ctx);
}
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