#include "includes.h"
#include "winbindd.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
static const fstring name_deadbeef = "<deadbeef>";
static struct winbindd_domain *_domain_list;
static time_t last_trustdom_scan;
struct winbindd_domain *domain_list(void)
{
if (!_domain_list)
if (!init_domain_list())
return NULL;
return _domain_list;
}
void free_domain_list(void)
{
struct winbindd_domain *domain = _domain_list;
while(domain) {
struct winbindd_domain *next = domain->next;
DLIST_REMOVE(_domain_list, domain);
SAFE_FREE(domain);
domain = next;
}
}
static BOOL is_internal_domain(const DOM_SID *sid)
{
extern DOM_SID global_sid_Builtin;
if (sid == NULL)
return False;
if (sid_compare_domain(sid, get_global_sam_sid()) == 0)
return True;
if (sid_compare_domain(sid, &global_sid_Builtin) == 0)
return True;
return False;
}
static struct winbindd_domain *add_trusted_domain(const char *domain_name, const char *alt_name,
struct winbindd_methods *methods,
DOM_SID *sid)
{
struct winbindd_domain *domain;
const char *alternative_name = NULL;
static const DOM_SID null_sid;
if ( (lp_security() == SEC_ADS) && alt_name && *alt_name) {
alternative_name = alt_name;
}
for (domain = _domain_list; domain; domain = domain->next) {
if (strequal(domain_name, domain->name) ||
strequal(domain_name, domain->alt_name)) {
return domain;
}
if (alternative_name && *alternative_name) {
if (strequal(alternative_name, domain->name) ||
strequal(alternative_name, domain->alt_name)) {
return domain;
}
}
if (sid) {
if (sid_equal(sid, &null_sid) ) {
} else if (sid_equal(sid, &domain->sid)) {
return domain;
}
}
}
if ((domain = SMB_MALLOC_P(struct winbindd_domain)) == NULL)
return NULL;
ZERO_STRUCTP(domain);
if (strchr_m(domain_name, '.') && alternative_name && *alternative_name) {
fstrcpy(domain->name, alternative_name);
fstrcpy(domain->alt_name, domain_name);
} else {
fstrcpy(domain->name, domain_name);
if (alternative_name) {
fstrcpy(domain->alt_name, alternative_name);
}
}
domain->methods = methods;
domain->backend = NULL;
domain->internal = is_internal_domain(sid);
domain->sequence_number = DOM_SEQUENCE_NONE;
domain->last_seq_check = 0;
domain->initialized = False;
if (sid) {
sid_copy(&domain->sid, sid);
}
DEBUG(3,("add_trusted_domain: %s is an %s %s domain\n", domain->name,
domain->active_directory ? "ADS" : "NT4",
domain->native_mode ? "native mode" :
((domain->active_directory && !domain->native_mode) ? "mixed mode" : "")));
DLIST_ADD(_domain_list, domain);
DEBUG(2,("Added domain %s %s %s\n",
domain->name, domain->alt_name,
&domain->sid?sid_string_static(&domain->sid):""));
return domain;
}
static void add_trusted_domains( struct winbindd_domain *domain )
{
extern struct winbindd_methods cache_methods;
TALLOC_CTX *mem_ctx;
NTSTATUS result;
time_t t;
char **names;
char **alt_names;
int num_domains = 0;
DOM_SID *dom_sids, null_sid;
int i;
struct winbindd_domain *new_domain;
if (!lp_allow_trusted_domains()) {
return;
}
DEBUG(5, ("scanning trusted domain list\n"));
if (!(mem_ctx = talloc_init("init_domain_list")))
return;
ZERO_STRUCTP(&null_sid);
t = time(NULL);
result = domain->methods->trusted_domains(domain, mem_ctx, (unsigned int *)&num_domains,
&names, &alt_names, &dom_sids);
if ( NT_STATUS_IS_OK(result) ) {
for(i = 0; i < num_domains; i++) {
DEBUG(10,("Found domain %s\n", names[i]));
add_trusted_domain(names[i], alt_names?alt_names[i]:NULL,
&cache_methods, &dom_sids[i]);
if ( sid_equal(&dom_sids[i], &null_sid) ) {
new_domain = find_domain_from_name(names[i]);
if ( !new_domain ) {
DEBUG(0,("rescan_trust_domains: can't find the domain I just added! [%s]\n",
names[i]));
break;
}
result = domain->methods->domain_sid( new_domain, &new_domain->sid );
if ( NT_STATUS_IS_OK(result) )
sid_copy( &dom_sids[i], &new_domain->sid );
}
trustdom_cache_store(names[i], alt_names ? alt_names[i] : NULL,
&dom_sids[i], t + WINBINDD_RESCAN_FREQ);
}
}
talloc_destroy(mem_ctx);
}
void rescan_trusted_domains( void )
{
time_t now = time(NULL);
struct winbindd_domain *mydomain = NULL;
if ( (now > last_trustdom_scan) && ((now-last_trustdom_scan) < WINBINDD_RESCAN_FREQ) )
return;
if ( (mydomain = find_our_domain()) == NULL ) {
DEBUG(0,("rescan_trusted_domains: Can't find my own domain!\n"));
return;
}
add_trusted_domains( mydomain );
last_trustdom_scan = now;
return;
}
BOOL init_domain_list(void)
{
extern DOM_SID global_sid_Builtin;
extern struct winbindd_methods cache_methods;
extern struct winbindd_methods passdb_methods;
struct winbindd_domain *domain;
free_domain_list();
if (IS_DC) {
domain = add_trusted_domain(get_global_sam_name(), NULL,
&passdb_methods, get_global_sam_sid());
} else {
domain = add_trusted_domain( lp_workgroup(), lp_realm(),
&cache_methods, NULL);
set_dc_type_and_flags(domain);
}
domain->primary = True;
cache_methods.alternate_name(domain);
if ( *domain->name )
set_global_myworkgroup( domain->name );
if (!secrets_fetch_domain_sid(domain->name, &domain->sid)) {
DEBUG(1, ("Could not fetch sid for our domain %s\n",
domain->name));
return False;
}
add_trusted_domains(domain);
add_trusted_domain("BUILTIN", NULL, &passdb_methods,
&global_sid_Builtin);
if (!IS_DC) {
add_trusted_domain(get_global_sam_name(), NULL,
&passdb_methods, get_global_sam_sid());
}
last_trustdom_scan = time(NULL);
return True;
}
struct winbindd_domain *find_domain_from_name(const char *domain_name)
{
struct winbindd_domain *domain;
for (domain = domain_list(); domain != NULL; domain = domain->next) {
if (strequal(domain_name, domain->name) ||
(domain->alt_name[0] && strequal(domain_name, domain->alt_name))) {
if (!domain->initialized)
set_dc_type_and_flags(domain);
return domain;
}
}
return NULL;
}
struct winbindd_domain *find_domain_from_sid(const DOM_SID *sid)
{
struct winbindd_domain *domain;
for (domain = domain_list(); domain != NULL; domain = domain->next) {
if (sid_compare_domain(sid, &domain->sid) == 0) {
if (!domain->initialized)
set_dc_type_and_flags(domain);
return domain;
}
}
return NULL;
}
struct winbindd_domain *find_our_domain(void)
{
struct winbindd_domain *domain;
for (domain = domain_list(); domain != NULL; domain = domain->next) {
if (domain->primary)
return domain;
}
return NULL;
}
struct winbindd_domain *find_lookup_domain_from_sid(const DOM_SID *sid)
{
if (IS_DC || is_internal_domain(sid))
return find_domain_from_sid(sid);
return find_our_domain();
}
struct winbindd_domain *find_lookup_domain_from_name(const char *domain_name)
{
if (IS_DC || strequal(domain_name, "BUILTIN") ||
strequal(domain_name, get_global_sam_name()))
return find_domain_from_name(domain_name);
return find_our_domain();
}
BOOL winbindd_lookup_sid_by_name(struct winbindd_domain *domain,
const char *domain_name,
const char *name, DOM_SID *sid,
enum SID_NAME_USE *type)
{
NTSTATUS result;
TALLOC_CTX *mem_ctx;
mem_ctx = talloc_init("lookup_sid_by_name for %s\\%s\n",
domain_name, name);
if (!mem_ctx)
return False;
result = domain->methods->name_to_sid(domain, mem_ctx, domain_name, name, sid, type);
talloc_destroy(mem_ctx);
if (!NT_STATUS_IS_OK(result)) {
*type = SID_NAME_UNKNOWN;
}
return NT_STATUS_IS_OK(result);
}
BOOL winbindd_lookup_name_by_sid(DOM_SID *sid,
fstring dom_name,
fstring name,
enum SID_NAME_USE *type)
{
char *names;
char *dom_names;
NTSTATUS result;
TALLOC_CTX *mem_ctx;
BOOL rv = False;
struct winbindd_domain *domain;
domain = find_lookup_domain_from_sid(sid);
if (!domain) {
DEBUG(1,("Can't find domain from sid\n"));
return False;
}
if (!(mem_ctx = talloc_init("winbindd_lookup_name_by_sid")))
return False;
result = domain->methods->sid_to_name(domain, mem_ctx, sid, &dom_names, &names, type);
if ((rv = NT_STATUS_IS_OK(result))) {
fstrcpy(dom_name, dom_names);
fstrcpy(name, names);
} else {
*type = SID_NAME_UNKNOWN;
fstrcpy(name, name_deadbeef);
}
talloc_destroy(mem_ctx);
return rv;
}
void free_getent_state(struct getent_state *state)
{
struct getent_state *temp;
temp = state;
while(temp != NULL) {
struct getent_state *next;
SAFE_FREE(state->sam_entries);
DLIST_REMOVE(state, state);
next = temp->next;
SAFE_FREE(temp);
temp = next;
}
}
BOOL winbindd_param_init(void)
{
if (!lp_idmap_uid(&server_state.uid_low, &server_state.uid_high)) {
DEBUG(0, ("winbindd: idmap uid range missing or invalid\n"));
DEBUG(0, ("winbindd: cannot continue, exiting.\n"));
return False;
}
if (!lp_idmap_gid(&server_state.gid_low, &server_state.gid_high)) {
DEBUG(0, ("winbindd: idmap gid range missing or invalid\n"));
DEBUG(0, ("winbindd: cannot continue, exiting.\n"));
return False;
}
return True;
}
BOOL check_domain_env(char *domain_env, char *domain)
{
fstring name;
const char *tmp = domain_env;
while(next_token(&tmp, name, ",", sizeof(fstring))) {
if (strequal(name, domain))
return True;
}
return False;
}
static BOOL assume_domain(const char *domain) {
if ((lp_winbind_use_default_domain()
|| lp_winbind_trusted_domains_only()) &&
strequal(lp_workgroup(), domain))
return True;
if (strequal(get_global_sam_name(), domain))
return True;
return False;
}
BOOL parse_domain_user(const char *domuser, fstring domain, fstring user)
{
char *p = strchr(domuser,*lp_winbind_separator());
if ( !p ) {
fstrcpy(user, domuser);
if ( assume_domain(lp_workgroup())) {
fstrcpy(domain, lp_workgroup());
} else {
fstrcpy( domain, get_global_sam_name() );
}
}
else {
fstrcpy(user, p+1);
fstrcpy(domain, domuser);
domain[PTR_DIFF(p, domuser)] = 0;
}
strupper_m(domain);
return True;
}
void fill_domain_username(fstring name, const char *domain, const char *user)
{
strlower_m( name );
if (assume_domain(domain)) {
strlcpy(name, user, sizeof(fstring));
} else {
slprintf(name, sizeof(fstring) - 1, "%s%c%s",
domain, *lp_winbind_separator(),
user);
}
}
char *get_winbind_priv_pipe_dir(void)
{
return lock_path(WINBINDD_PRIV_SOCKET_SUBDIR);
}
static int _winbindd_socket = -1;
static int _winbindd_priv_socket = -1;
int open_winbindd_socket(void)
{
if (_winbindd_socket == -1) {
_winbindd_socket = create_pipe_sock(
WINBINDD_SOCKET_DIR, WINBINDD_SOCKET_NAME, 0755);
DEBUG(10, ("open_winbindd_socket: opened socket fd %d\n",
_winbindd_socket));
}
return _winbindd_socket;
}
int open_winbindd_priv_socket(void)
{
if (_winbindd_priv_socket == -1) {
_winbindd_priv_socket = create_pipe_sock(
get_winbind_priv_pipe_dir(), WINBINDD_SOCKET_NAME, 0750);
DEBUG(10, ("open_winbindd_priv_socket: opened socket fd %d\n",
_winbindd_priv_socket));
}
return _winbindd_priv_socket;
}
void close_winbindd_socket(void)
{
if (_winbindd_socket != -1) {
DEBUG(10, ("close_winbindd_socket: closing socket fd %d\n",
_winbindd_socket));
close(_winbindd_socket);
_winbindd_socket = -1;
}
if (_winbindd_priv_socket != -1) {
DEBUG(10, ("close_winbindd_socket: closing socket fd %d\n",
_winbindd_priv_socket));
close(_winbindd_priv_socket);
_winbindd_priv_socket = -1;
}
}
static struct winbindd_cli_state *_client_list;
static int _num_clients;
struct winbindd_cli_state *winbindd_client_list(void)
{
return _client_list;
}
void winbindd_add_client(struct winbindd_cli_state *cli)
{
DLIST_ADD(_client_list, cli);
_num_clients++;
}
void winbindd_remove_client(struct winbindd_cli_state *cli)
{
DLIST_REMOVE(_client_list, cli);
_num_clients--;
}
void winbindd_demote_client(struct winbindd_cli_state *cli)
{
struct winbindd_cli_state *tmp;
DLIST_DEMOTE(_client_list, cli, tmp);
}
void winbindd_kill_all_clients(void)
{
struct winbindd_cli_state *cl = winbindd_client_list();
DEBUG(10, ("winbindd_kill_all_clients: going postal\n"));
while (cl) {
struct winbindd_cli_state *next;
next = cl->next;
winbindd_remove_client(cl);
cl = next;
}
}
int winbindd_num_clients(void)
{
return _num_clients;
}
DOM_SID *rid_to_talloced_sid(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 rid)
{
DOM_SID *sid;
sid = TALLOC_P(mem_ctx, DOM_SID);
if (!sid) {
smb_panic("rid_to_to_talloced_sid: talloc for DOM_SID failed!\n");
}
sid_copy(sid, &domain->sid);
sid_append_rid(sid, rid);
return sid;
}
static int convert_fn(TDB_CONTEXT *tdb, TDB_DATA key, TDB_DATA data, void *state)
{
struct winbindd_domain *domain;
char *p;
DOM_SID sid;
uint32 rid;
fstring keystr;
fstring dom_name;
TDB_DATA key2;
BOOL *failed = (BOOL *)state;
DEBUG(10,("Converting %s\n", key.dptr));
p = strchr(key.dptr, '/');
if (!p)
return 0;
*p = 0;
fstrcpy(dom_name, key.dptr);
*p++ = '/';
domain = find_domain_from_name(dom_name);
if (domain == NULL) {
DEBUG(0,("Unable to find domain %s\n", dom_name ));
DEBUG(0,("deleting record %s\n", key.dptr ));
if (tdb_delete(tdb, key) != 0) {
DEBUG(0, ("Unable to delete record %s\n", key.dptr));
*failed = True;
return -1;
}
return 0;
}
rid = atoi(p);
sid_copy(&sid, &domain->sid);
sid_append_rid(&sid, rid);
sid_to_string(keystr, &sid);
key2.dptr = keystr;
key2.dsize = strlen(keystr) + 1;
if (tdb_store(tdb, key2, data, TDB_INSERT) != 0) {
DEBUG(0,("Unable to add record %s\n", key2.dptr ));
*failed = True;
return -1;
}
if (tdb_store(tdb, data, key2, TDB_REPLACE) != 0) {
DEBUG(0,("Unable to update record %s\n", data.dptr ));
*failed = True;
return -1;
}
if (tdb_delete(tdb, key) != 0) {
DEBUG(0,("Unable to delete record %s\n", key.dptr ));
*failed = True;
return -1;
}
return 0;
}
#define HWM_GROUP "GROUP HWM"
#define HWM_USER "USER HWM"
#define IDMAP_VERSION 2
static BOOL idmap_convert(const char *idmap_name)
{
int32 vers;
BOOL bigendianheader;
BOOL failed = False;
TDB_CONTEXT *idmap_tdb;
if (!(idmap_tdb = tdb_open_log(idmap_name, 0,
TDB_DEFAULT, O_RDWR,
0600))) {
DEBUG(0, ("idmap_convert: Unable to open idmap database\n"));
return False;
}
bigendianheader = (idmap_tdb->flags & TDB_BIGENDIAN) ? True : False;
vers = tdb_fetch_int32(idmap_tdb, "IDMAP_VERSION");
if (((vers == -1) && bigendianheader) || (IREV(vers) == IDMAP_VERSION)) {
int32 wm;
wm = tdb_fetch_int32(idmap_tdb, HWM_USER);
if (wm != -1) {
wm = IREV(wm);
} else {
wm = server_state.uid_low;
}
if (tdb_store_int32(idmap_tdb, HWM_USER, wm) == -1) {
DEBUG(0, ("idmap_convert: Unable to byteswap user hwm in idmap database\n"));
tdb_close(idmap_tdb);
return False;
}
wm = tdb_fetch_int32(idmap_tdb, HWM_GROUP);
if (wm != -1) {
wm = IREV(wm);
} else {
wm = server_state.gid_low;
}
if (tdb_store_int32(idmap_tdb, HWM_GROUP, wm) == -1) {
DEBUG(0, ("idmap_convert: Unable to byteswap group hwm in idmap database\n"));
tdb_close(idmap_tdb);
return False;
}
}
tdb_traverse(idmap_tdb, convert_fn, &failed);
if (failed) {
DEBUG(0, ("Problem during conversion\n"));
tdb_close(idmap_tdb);
return False;
}
if (tdb_store_int32(idmap_tdb, "IDMAP_VERSION", IDMAP_VERSION) == -1) {
DEBUG(0, ("idmap_convert: Unable to dtore idmap version in databse\n"));
tdb_close(idmap_tdb);
return False;
}
tdb_close(idmap_tdb);
return True;
}
BOOL winbindd_upgrade_idmap(void)
{
pstring idmap_name;
pstring backup_name;
SMB_STRUCT_STAT stbuf;
TDB_CONTEXT *idmap_tdb;
pstrcpy(idmap_name, lock_path("winbindd_idmap.tdb"));
if (!file_exist(idmap_name, &stbuf)) {
return True;
}
if (!(idmap_tdb = tdb_open_log(idmap_name, 0,
TDB_DEFAULT, O_RDWR,
0600))) {
DEBUG(0, ("idmap_convert: Unable to open idmap database\n"));
return False;
}
if (tdb_fetch_int32(idmap_tdb, "IDMAP_VERSION") == IDMAP_VERSION) {
tdb_close(idmap_tdb);
return True;
}
tdb_close(idmap_tdb);
DEBUG(0, ("Upgrading winbindd_idmap.tdb from an old version\n"));
pstrcpy(backup_name, idmap_name);
pstrcat(backup_name, ".bak");
if (backup_tdb(idmap_name, backup_name) != 0) {
DEBUG(0, ("Could not backup idmap database\n"));
return False;
}
return idmap_convert(idmap_name);
}
BOOL get_trust_pw(const char *domain, uint8 ret_pwd[16],
time_t *pass_last_set_time, uint32 *channel)
{
DOM_SID sid;
char *pwd;
if ( IS_DC && !strequal(domain, lp_workgroup()) && lp_allow_trusted_domains() )
{
if ( !secrets_fetch_trusted_domain_password(domain, &pwd, &sid,
pass_last_set_time) )
{
DEBUG(0, ("get_trust_pw: could not fetch trust account "
"password for trusted domain %s\n", domain));
return False;
}
*channel = SEC_CHAN_DOMAIN;
E_md4hash(pwd, ret_pwd);
SAFE_FREE(pwd);
return True;
}
else
{
if ( !secrets_fetch_trust_account_password (lp_workgroup(), ret_pwd,
pass_last_set_time, channel) )
{
DEBUG(0, ("get_trust_pw: could not fetch trust account "
"password for my domain %s\n", domain));
return False;
}
return True;
}
}