Copyright (C) Andrew Tridgell 2001
Copyright (C) Gerald Carter 2003
Copyright (C) Volker Lendecke 2005
-
+ Copyright (C) Guenther Deschner 2005
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
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND
+/* Global online/offline state - False when online. winbindd starts up online
+ and sets this to true if the first query fails and there's an entry in
+ the cache tdb telling us to stay offline. */
+
+static BOOL global_winbindd_offline_state;
+
struct winbind_cache {
TDB_CONTEXT *tdb;
};
static struct winbind_cache *wcache;
-/* flush the cache */
-void wcache_flush_cache(void)
-{
- extern BOOL opt_nocache;
-
- if (!wcache)
- return;
- if (wcache->tdb) {
- tdb_close(wcache->tdb);
- wcache->tdb = NULL;
- }
- if (opt_nocache)
- return;
-
- wcache->tdb = tdb_open_log(lock_path("winbindd_cache.tdb"), 5000,
- TDB_CLEAR_IF_FIRST, O_RDWR|O_CREAT, 0600);
-
- if (!wcache->tdb) {
- DEBUG(0,("Failed to open winbindd_cache.tdb!\n"));
- }
- DEBUG(10,("wcache_flush_cache success\n"));
-}
-
void winbindd_check_cache_size(time_t t)
{
static time_t last_check_time;
static struct winbind_cache *get_cache(struct winbindd_domain *domain)
{
struct winbind_cache *ret = wcache;
+#ifdef HAVE_ADS
+ struct winbindd_domain *our_domain = domain;
+#endif
/* we have to know what type of domain we are dealing with first */
if ( !domain->initialized )
set_dc_type_and_flags( domain );
+ /*
+ OK. listen up becasue I'm only going to say this once.
+ We have the following scenarios to consider
+ (a) trusted AD domains on a Samba DC,
+ (b) trusted AD domains and we are joined to a non-kerberos domain
+ (c) trusted AD domains and we are joined to a kerberos (AD) domain
+
+ For (a) we can always contact the trusted domain using krb5
+ since we have the domain trust account password
+
+ For (b) we can only use RPC since we have no way of
+ getting a krb5 ticket in our own domain
+
+ For (c) we can always use krb5 since we have a kerberos trust
+
+ --jerry
+ */
+
if (!domain->backend) {
extern struct winbindd_methods reconnect_methods;
- switch (lp_security()) {
#ifdef HAVE_ADS
- case SEC_ADS: {
- extern struct winbindd_methods ads_methods;
- /* always obey the lp_security parameter for our domain */
- if (domain->primary) {
- domain->backend = &ads_methods;
- break;
- }
+ extern struct winbindd_methods ads_methods;
- /* only use ADS for native modes at the momment.
- The problem is the correct detection of mixed
- mode domains from NT4 BDC's --jerry */
-
- if ( domain->native_mode ) {
- DEBUG(5,("get_cache: Setting ADS methods for domain %s\n",
- domain->name));
- domain->backend = &ads_methods;
- break;
- }
+ /* find our domain first so we can figure out if we
+ are joined to a kerberized domain */
- /* fall through */
- }
-#endif
- default:
- DEBUG(5,("get_cache: Setting MS-RPC methods for domain %s\n",
- domain->name));
+ if ( !domain->primary )
+ our_domain = find_our_domain();
+
+ if ( (our_domain->active_directory || IS_DC) && domain->active_directory ) {
+ DEBUG(5,("get_cache: Setting ADS methods for domain %s\n", domain->name));
+ domain->backend = &ads_methods;
+ } else {
+#endif /* HAVE_ADS */
+ DEBUG(5,("get_cache: Setting MS-RPC methods for domain %s\n", domain->name));
domain->backend = &reconnect_methods;
+#ifdef HAVE_ADS
}
+#endif /* HAVE_ADS */
}
if (ret)
return ret;
}
+/*
+ pull a uint16 from a cache entry
+*/
+static uint16 centry_uint16(struct cache_entry *centry)
+{
+ uint16 ret;
+ if (centry->len - centry->ofs < 2) {
+ DEBUG(0,("centry corruption? needed 2 bytes, have %d\n",
+ centry->len - centry->ofs));
+ smb_panic("centry_uint16");
+ }
+ ret = CVAL(centry->data, centry->ofs);
+ centry->ofs += 2;
+ return ret;
+}
+
/*
pull a uint8 from a cache entry
*/
return ret;
}
+/*
+ pull a NTTIME from a cache entry
+*/
+static NTTIME centry_nttime(struct cache_entry *centry)
+{
+ NTTIME ret;
+ if (centry->len - centry->ofs < 8) {
+ DEBUG(0,("centry corruption? needed 8 bytes, have %d\n",
+ centry->len - centry->ofs));
+ smb_panic("centry_nttime");
+ }
+ ret.low = IVAL(centry->data, centry->ofs);
+ centry->ofs += 4;
+ ret.high = IVAL(centry->data, centry->ofs);
+ centry->ofs += 4;
+ return ret;
+}
+
+/*
+ pull a time_t from a cache entry
+*/
+static time_t centry_time(struct cache_entry *centry)
+{
+ time_t ret;
+ if (centry->len - centry->ofs < sizeof(time_t)) {
+ DEBUG(0,("centry corruption? needed %d bytes, have %d\n",
+ sizeof(time_t), centry->len - centry->ofs));
+ smb_panic("centry_time");
+ }
+ ret = IVAL(centry->data, centry->ofs); /* FIXME: correct ? */
+ centry->ofs += sizeof(time_t);
+ return ret;
+}
+
/* pull a string from a cache entry, using the supplied
talloc context
*/
smb_panic("centry_string");
}
- if (mem_ctx != NULL)
- ret = TALLOC(mem_ctx, len+1);
- else
- ret = SMB_MALLOC(len+1);
+ ret = TALLOC(mem_ctx, len+1);
if (!ret) {
smb_panic("centry_string out of memory\n");
}
/* pull a string from a cache entry, using the supplied
talloc context
*/
-static BOOL centry_sid(struct cache_entry *centry, DOM_SID *sid)
+static BOOL centry_sid(struct cache_entry *centry, TALLOC_CTX *mem_ctx, DOM_SID *sid)
{
char *sid_string;
- sid_string = centry_string(centry, NULL);
+ sid_string = centry_string(centry, mem_ctx);
if (!string_to_sid(sid, sid_string)) {
return False;
}
- SAFE_FREE(sid_string);
return True;
}
*/
static BOOL centry_expired(struct winbindd_domain *domain, const char *keystr, struct cache_entry *centry)
{
+ /* If we've been told to be offline - stay in that state... */
+ if (lp_winbind_offline_logon() && global_winbindd_offline_state) {
+ DEBUG(10,("centry_expired: Key %s for domain %s valid as winbindd is globally offline.\n",
+ keystr, domain->name ));
+ return False;
+ }
+
+ /* when the domain is offline and we havent checked in the last 30
+ * seconds if it has become online again, return the cached entry.
+ * This deals with transient offline states... */
+
+ if (!domain->online &&
+ !NT_STATUS_IS_OK(check_negative_conn_cache(domain->name, domain->dcname))) {
+ DEBUG(10,("centry_expired: Key %s for domain %s valid as domain is offline.\n",
+ keystr, domain->name ));
+ return False;
+ }
+
/* if the server is OK and our cache entry came from when it was down then
the entry is invalid */
- if (domain->sequence_number != DOM_SEQUENCE_NONE &&
- centry->sequence_number == DOM_SEQUENCE_NONE) {
+ if ((domain->sequence_number != DOM_SEQUENCE_NONE) &&
+ (centry->sequence_number == DOM_SEQUENCE_NONE)) {
DEBUG(10,("centry_expired: Key %s for domain %s invalid sequence.\n",
keystr, domain->name ));
return True;
return True;
}
-/*
- fetch an entry from the cache, with a varargs key. auto-fetch the sequence
- number and return status
-*/
-static struct cache_entry *wcache_fetch(struct winbind_cache *cache,
- struct winbindd_domain *domain,
- const char *format, ...) PRINTF_ATTRIBUTE(3,4);
-static struct cache_entry *wcache_fetch(struct winbind_cache *cache,
- struct winbindd_domain *domain,
- const char *format, ...)
+static struct cache_entry *wcache_fetch_raw(char *kstr)
{
- va_list ap;
- char *kstr;
TDB_DATA data;
struct cache_entry *centry;
TDB_DATA key;
- refresh_sequence_number(domain, False);
-
- va_start(ap, format);
- smb_xvasprintf(&kstr, format, ap);
- va_end(ap);
-
key.dptr = kstr;
key.dsize = strlen(kstr);
data = tdb_fetch(wcache->tdb, key);
if (!data.dptr) {
/* a cache miss */
- free(kstr);
return NULL;
}
if (centry->len < 8) {
/* huh? corrupt cache? */
- DEBUG(10,("wcache_fetch: Corrupt cache for key %s domain %s (len < 8) ?\n",
- kstr, domain->name ));
+ DEBUG(10,("wcache_fetch_raw: Corrupt cache for key %s (len < 8) ?\n", kstr));
centry_free(centry);
- free(kstr);
return NULL;
}
centry->status = NT_STATUS(centry_uint32(centry));
centry->sequence_number = centry_uint32(centry);
+ return centry;
+}
+
+/*
+ fetch an entry from the cache, with a varargs key. auto-fetch the sequence
+ number and return status
+*/
+static struct cache_entry *wcache_fetch(struct winbind_cache *cache,
+ struct winbindd_domain *domain,
+ const char *format, ...) PRINTF_ATTRIBUTE(3,4);
+static struct cache_entry *wcache_fetch(struct winbind_cache *cache,
+ struct winbindd_domain *domain,
+ const char *format, ...)
+{
+ va_list ap;
+ char *kstr;
+ struct cache_entry *centry;
+
+ refresh_sequence_number(domain, False);
+
+ va_start(ap, format);
+ smb_xvasprintf(&kstr, format, ap);
+ va_end(ap);
+
+ centry = wcache_fetch_raw(kstr);
+ if (centry == NULL) {
+ free(kstr);
+ return NULL;
+ }
+
if (centry_expired(domain, kstr, centry)) {
DEBUG(10,("wcache_fetch: entry %s expired for domain %s\n",
*/
static void centry_expand(struct cache_entry *centry, uint32 len)
{
- uint8 *p;
if (centry->len - centry->ofs >= len)
return;
centry->len *= 2;
- p = SMB_REALLOC(centry->data, centry->len);
- if (!p) {
+ centry->data = SMB_REALLOC(centry->data, centry->len);
+ if (!centry->data) {
DEBUG(0,("out of memory: needed %d bytes in centry_expand\n", centry->len));
smb_panic("out of memory in centry_expand");
}
- centry->data = p;
}
/*
centry->ofs += 4;
}
+/*
+ push a uint16 into a centry
+*/
+static void centry_put_uint16(struct cache_entry *centry, uint16 v)
+{
+ centry_expand(centry, 2);
+ SIVAL(centry->data, centry->ofs, v);
+ centry->ofs += 2;
+}
+
/*
push a uint8 into a centry
*/
len = strlen(s);
/* can't handle more than 254 char strings. Truncating is probably best */
- if (len > 254)
+ if (len > 254) {
+ DEBUG(10,("centry_put_string: truncating len (%d) to: 254\n", len));
len = 254;
+ }
centry_put_uint8(centry, len);
centry_expand(centry, len);
memcpy(centry->data + centry->ofs, s, len);
centry_put_string(centry, sid_to_string(sid_string, sid));
}
+/*
+ push a NTTIME into a centry
+*/
+static void centry_put_nttime(struct cache_entry *centry, NTTIME nt)
+{
+ centry_expand(centry, 8);
+ SIVAL(centry->data, centry->ofs, nt.low);
+ centry->ofs += 4;
+ SIVAL(centry->data, centry->ofs, nt.high);
+ centry->ofs += 4;
+}
+
+/*
+ push a time_t into a centry
+*/
+static void centry_put_time(struct cache_entry *centry, time_t t)
+{
+ centry_expand(centry, sizeof(time_t));
+ SIVAL(centry->data, centry->ofs, t); /* FIXME: is this correct ?? */
+ centry->ofs += sizeof(time_t);
+}
+
/*
start a centry for output. When finished, call centry_end()
*/
centry_free(centry);
}
+static void wcache_save_lockout_policy(struct winbindd_domain *domain, NTSTATUS status, SAM_UNK_INFO_12 *lockout_policy)
+{
+ struct cache_entry *centry;
+
+ centry = centry_start(domain, status);
+ if (!centry)
+ return;
+
+ centry_put_nttime(centry, lockout_policy->duration);
+ centry_put_nttime(centry, lockout_policy->reset_count);
+ centry_put_uint16(centry, lockout_policy->bad_attempt_lockout);
+
+ centry_end(centry, "LOC_POL/%s", domain->name);
+
+ DEBUG(10,("wcache_save_lockout_policy: %s\n", domain->name));
+
+ centry_free(centry);
+}
+
+static void wcache_save_password_policy(struct winbindd_domain *domain, NTSTATUS status, SAM_UNK_INFO_1 *password_policy)
+{
+ struct cache_entry *centry;
+
+ centry = centry_start(domain, status);
+ if (!centry)
+ return;
+
+ centry_put_uint16(centry, password_policy->min_length_password);
+ centry_put_uint16(centry, password_policy->password_history);
+ centry_put_uint32(centry, password_policy->password_properties);
+ centry_put_nttime(centry, password_policy->expire);
+ centry_put_nttime(centry, password_policy->min_passwordage);
+
+ centry_end(centry, "PWD_POL/%s", domain->name);
+
+ DEBUG(10,("wcache_save_password_policy: %s\n", domain->name));
+
+ centry_free(centry);
+}
+
+NTSTATUS wcache_cached_creds_exist(struct winbindd_domain *domain, const DOM_SID *sid)
+{
+ struct winbind_cache *cache = get_cache(domain);
+ TDB_DATA data;
+ fstring key_str;
+ uint32 rid;
+
+ if (!cache->tdb) {
+ return NT_STATUS_INTERNAL_DB_ERROR;
+ }
+
+ if (is_null_sid(sid)) {
+ return NT_STATUS_INVALID_SID;
+ }
+
+ if (!(sid_peek_rid(sid, &rid)) || (rid == 0)) {
+ return NT_STATUS_INVALID_SID;
+ }
+
+ fstr_sprintf(key_str, "CRED/%s", sid_string_static(sid));
+
+ data = tdb_fetch(cache->tdb, make_tdb_data(key_str, strlen(key_str)));
+ if (!data.dptr) {
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+
+ return NT_STATUS_OK;
+}
+
+/* Lookup creds for a SID */
+NTSTATUS wcache_get_creds(struct winbindd_domain *domain,
+ TALLOC_CTX *mem_ctx,
+ const DOM_SID *sid,
+ const uint8 **cached_nt_pass)
+{
+ struct winbind_cache *cache = get_cache(domain);
+ struct cache_entry *centry = NULL;
+ NTSTATUS status;
+ time_t t;
+ uint32 rid;
+
+ if (!cache->tdb) {
+ return NT_STATUS_INTERNAL_DB_ERROR;
+ }
+
+ if (is_null_sid(sid)) {
+ return NT_STATUS_INVALID_SID;
+ }
+
+ if (!(sid_peek_rid(sid, &rid)) || (rid == 0)) {
+ return NT_STATUS_INVALID_SID;
+ }
+
+ centry = wcache_fetch(cache, domain, "CRED/%s", sid_string_static(sid));
+
+ if (!centry) {
+ DEBUG(10,("wcache_get_creds: entry for [CRED/%s] not found\n",
+ sid_string_static(sid)));
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+
+ t = centry_time(centry);
+ *cached_nt_pass = (const uint8 *)centry_string(centry, mem_ctx);
+
+#if DEBUG_PASSWORD
+ dump_data(100, (const char *)cached_nt_pass, NT_HASH_LEN);
+#endif
+ status = centry->status;
+
+ DEBUG(10,("wcache_get_creds: [Cached] - cached creds for user %s status %s\n",
+ sid_string_static(sid), get_friendly_nt_error_msg(status) ));
+
+ centry_free(centry);
+ return status;
+}
+
+NTSTATUS wcache_save_creds(struct winbindd_domain *domain,
+ TALLOC_CTX *mem_ctx,
+ const DOM_SID *sid,
+ const uint8 nt_pass[NT_HASH_LEN])
+{
+ struct cache_entry *centry;
+ fstring sid_string;
+ uint32 rid;
+
+ if (is_null_sid(sid)) {
+ return NT_STATUS_INVALID_SID;
+ }
+
+ if (!(sid_peek_rid(sid, &rid)) || (rid == 0)) {
+ return NT_STATUS_INVALID_SID;
+ }
+
+ centry = centry_start(domain, NT_STATUS_OK);
+ if (!centry) {
+ return NT_STATUS_INTERNAL_DB_ERROR;
+ }
+
+#if DEBUG_PASSWORD
+ dump_data(100, (const char *)nt_pass, NT_HASH_LEN);
+#endif
+
+ centry_put_time(centry, time(NULL));
+ centry_put_string(centry, (const char *)nt_pass);
+ centry_end(centry, "CRED/%s", sid_to_string(sid_string, sid));
+
+ DEBUG(10,("wcache_save_creds: %s\n", sid_string));
+
+ centry_free(centry);
+
+ return NT_STATUS_OK;
+}
+
/* Query display info. This is the basic user list fn */
static NTSTATUS query_user_list(struct winbindd_domain *domain,
(*info)[i].full_name = centry_string(centry, mem_ctx);
(*info)[i].homedir = centry_string(centry, mem_ctx);
(*info)[i].shell = centry_string(centry, mem_ctx);
- centry_sid(centry, &(*info)[i].user_sid);
- centry_sid(centry, &(*info)[i].group_sid);
+ centry_sid(centry, mem_ctx, &(*info)[i].user_sid);
+ centry_sid(centry, mem_ctx, &(*info)[i].group_sid);
}
do_cached:
if (!centry)
goto do_query;
*type = (enum SID_NAME_USE)centry_uint32(centry);
- centry_sid(centry, sid);
status = centry->status;
+ if (NT_STATUS_IS_OK(status)) {
+ centry_sid(centry, mem_ctx, sid);
+ }
DEBUG(10,("name_to_sid: [Cached] - cached name for domain %s status %s\n",
domain->name, get_friendly_nt_error_msg(status) ));
status = domain->backend->name_to_sid(domain, mem_ctx, domain_name, name, sid, type);
/* and save it */
- wcache_save_name_to_sid(domain, status, domain_name, name, sid, *type);
+ if (domain->online || !is_null_sid(sid)) {
+ wcache_save_name_to_sid(domain, status, domain_name, name, sid, *type);
+ }
- /* We can't save the sid to name mapping as we don't know the
- correct case of the name without looking it up */
+ if (NT_STATUS_IS_OK(status)) {
+ strupper_m(CONST_DISCARD(char *,domain_name));
+ strlower_m(CONST_DISCARD(char *,name));
+ wcache_save_sid_to_name(domain, status, sid, domain_name, name, *type);
+ }
return status;
}
centry = wcache_fetch(cache, domain, "U/%s", sid_string_static(user_sid));
+ /* If we have an access denied cache entry and a cached info3 in the
+ samlogon cache then do a query. This will force the rpc back end
+ to return the info3 data. */
+
+ if (NT_STATUS_V(domain->last_status) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED) &&
+ netsamlogon_cache_have(user_sid)) {
+ DEBUG(10, ("query_user: cached access denied and have cached info3\n"));
+ domain->last_status = NT_STATUS_OK;
+ centry_free(centry);
+ goto do_query;
+ }
+
if (!centry)
goto do_query;
info->full_name = centry_string(centry, mem_ctx);
info->homedir = centry_string(centry, mem_ctx);
info->shell = centry_string(centry, mem_ctx);
- centry_sid(centry, &info->user_sid);
- centry_sid(centry, &info->group_sid);
+ centry_sid(centry, mem_ctx, &info->user_sid);
+ centry_sid(centry, mem_ctx, &info->group_sid);
status = centry->status;
DEBUG(10,("query_user: [Cached] - cached info for domain %s status %s\n",
centry = wcache_fetch(cache, domain, "UG/%s", sid_to_string(sid_string, user_sid));
+ /* If we have an access denied cache entry and a cached info3 in the
+ samlogon cache then do a query. This will force the rpc back end
+ to return the info3 data. */
+
+ if (NT_STATUS_V(domain->last_status) == NT_STATUS_V(NT_STATUS_ACCESS_DENIED) &&
+ netsamlogon_cache_have(user_sid)) {
+ DEBUG(10, ("lookup_usergroups: cached access denied and have cached info3\n"));
+ domain->last_status = NT_STATUS_OK;
+ centry_free(centry);
+ goto do_query;
+ }
+
if (!centry)
goto do_query;
if (! (*user_gids))
smb_panic("lookup_usergroups out of memory");
for (i=0; i<(*num_groups); i++) {
- centry_sid(centry, &(*user_gids)[i]);
+ centry_sid(centry, mem_ctx, &(*user_gids)[i]);
}
do_cached:
(*alias_rids) = TALLOC_ARRAY(mem_ctx, uint32, *num_aliases);
- if ((*num_aliases != 0) && ((*alias_rids) == NULL))
+ if ((*num_aliases != 0) && ((*alias_rids) == NULL)) {
+ centry_free(centry);
return NT_STATUS_NO_MEMORY;
+ }
for (i=0; i<(*num_aliases); i++)
(*alias_rids)[i] = centry_uint32(centry);
}
for (i=0; i<(*num_names); i++) {
- centry_sid(centry, &(*sid_mem)[i]);
+ centry_sid(centry, mem_ctx, &(*sid_mem)[i]);
(*names)[i] = centry_string(centry, mem_ctx);
(*name_types)[i] = centry_uint32(centry);
}
return NT_STATUS_OK;
}
-/* enumerate trusted domains */
+/* enumerate trusted domains
+ * (we need to have the list of trustdoms in the cache when we go offline) -
+ * Guenther */
static NTSTATUS trusted_domains(struct winbindd_domain *domain,
TALLOC_CTX *mem_ctx,
uint32 *num_domains,
char ***alt_names,
DOM_SID **dom_sids)
{
- get_cache(domain);
+ struct winbind_cache *cache = get_cache(domain);
+ struct cache_entry *centry = NULL;
+ NTSTATUS status;
+ int i;
+
+ if (!cache->tdb)
+ goto do_query;
+
+ centry = wcache_fetch(cache, domain, "TRUSTDOMS/%s", domain->name);
+
+ if (!centry) {
+ goto do_query;
+ }
+
+ *num_domains = centry_uint32(centry);
+
+ (*names) = TALLOC_ARRAY(mem_ctx, char *, *num_domains);
+ (*alt_names) = TALLOC_ARRAY(mem_ctx, char *, *num_domains);
+ (*dom_sids) = TALLOC_ARRAY(mem_ctx, DOM_SID, *num_domains);
+
+ if (! (*dom_sids) || ! (*names) || ! (*alt_names)) {
+ smb_panic("trusted_domains out of memory");
+ }
+
+ for (i=0; i<(*num_domains); i++) {
+ (*names)[i] = centry_string(centry, mem_ctx);
+ (*alt_names)[i] = centry_string(centry, mem_ctx);
+ centry_sid(centry, mem_ctx, &(*dom_sids)[i]);
+ }
+
+ status = centry->status;
+
+ DEBUG(10,("trusted_domains: [Cached] - cached info for domain %s (%d trusts) status %s\n",
+ domain->name, *num_domains, get_friendly_nt_error_msg(status) ));
+
+ centry_free(centry);
+ return status;
+
+do_query:
+ (*num_domains) = 0;
+ (*dom_sids) = NULL;
+ (*names) = NULL;
+ (*alt_names) = NULL;
+
+ /* Return status value returned by seq number check */
+ if (!NT_STATUS_IS_OK(domain->last_status))
+ return domain->last_status;
+
DEBUG(10,("trusted_domains: [Cached] - doing backend query for info for domain %s\n",
domain->name ));
+
+ status = domain->backend->trusted_domains(domain, mem_ctx, num_domains,
+ names, alt_names, dom_sids);
- /* we don't cache this call */
- return domain->backend->trusted_domains(domain, mem_ctx, num_domains,
- names, alt_names, dom_sids);
-}
+ /* no trusts gives NT_STATUS_NO_MORE_ENTRIES resetting to NT_STATUS_OK
+ * so that the generic centry handling still applies correctly -
+ * Guenther*/
-/* find the alternate names for the domain, if any */
-static NTSTATUS alternate_name(struct winbindd_domain *domain)
+ if (!NT_STATUS_IS_ERR(status)) {
+ status = NT_STATUS_OK;
+ }
+
+ /* and save it */
+ refresh_sequence_number(domain, False);
+
+ centry = centry_start(domain, status);
+ if (!centry)
+ goto skip_save;
+
+ centry_put_uint32(centry, *num_domains);
+
+ for (i=0; i<(*num_domains); i++) {
+ centry_put_string(centry, (*names)[i]);
+ centry_put_string(centry, (*alt_names)[i]);
+ centry_put_sid(centry, &(*dom_sids)[i]);
+ }
+
+ centry_end(centry, "TRUSTDOMS/%s", domain->name);
+
+ centry_free(centry);
+
+skip_save:
+ return status;
+}
+
+/* get lockout policy */
+static NTSTATUS lockout_policy(struct winbindd_domain *domain,
+ TALLOC_CTX *mem_ctx,
+ SAM_UNK_INFO_12 *lockout_policy){
+ struct winbind_cache *cache = get_cache(domain);
+ struct cache_entry *centry = NULL;
+ NTSTATUS status;
+
+ if (!cache->tdb)
+ goto do_query;
+
+ centry = wcache_fetch(cache, domain, "LOC_POL/%s", domain->name);
+
+ if (!centry)
+ goto do_query;
+
+ lockout_policy->duration = centry_nttime(centry);
+ lockout_policy->reset_count = centry_nttime(centry);
+ lockout_policy->bad_attempt_lockout = centry_uint16(centry);
+
+ status = centry->status;
+
+ DEBUG(10,("lockout_policy: [Cached] - cached info for domain %s status %s\n",
+ domain->name, get_friendly_nt_error_msg(status) ));
+
+ centry_free(centry);
+ return status;
+
+do_query:
+ ZERO_STRUCTP(lockout_policy);
+
+ /* Return status value returned by seq number check */
+
+ if (!NT_STATUS_IS_OK(domain->last_status))
+ return domain->last_status;
+
+ DEBUG(10,("lockout_policy: [Cached] - doing backend query for info for domain %s\n",
+ domain->name ));
+
+ status = domain->backend->lockout_policy(domain, mem_ctx, lockout_policy);
+
+ /* and save it */
+ refresh_sequence_number(domain, False);
+ wcache_save_lockout_policy(domain, status, lockout_policy);
+
+ return status;
+}
+
+/* get password policy */
+static NTSTATUS password_policy(struct winbindd_domain *domain,
+ TALLOC_CTX *mem_ctx,
+ SAM_UNK_INFO_1 *password_policy)
{
- get_cache(domain);
+ struct winbind_cache *cache = get_cache(domain);
+ struct cache_entry *centry = NULL;
+ NTSTATUS status;
+
+ if (!cache->tdb)
+ goto do_query;
+
+ centry = wcache_fetch(cache, domain, "PWD_POL/%s", domain->name);
+
+ if (!centry)
+ goto do_query;
+
+ password_policy->min_length_password = centry_uint16(centry);
+ password_policy->password_history = centry_uint16(centry);
+ password_policy->password_properties = centry_uint32(centry);
+ password_policy->expire = centry_nttime(centry);
+ password_policy->min_passwordage = centry_nttime(centry);
+
+ status = centry->status;
- DEBUG(10,("alternate_name: [Cached] - doing backend query for info for domain %s\n",
+ DEBUG(10,("lockout_policy: [Cached] - cached info for domain %s status %s\n",
+ domain->name, get_friendly_nt_error_msg(status) ));
+
+ centry_free(centry);
+ return status;
+
+do_query:
+ ZERO_STRUCTP(password_policy);
+
+ /* Return status value returned by seq number check */
+
+ if (!NT_STATUS_IS_OK(domain->last_status))
+ return domain->last_status;
+
+ DEBUG(10,("password_policy: [Cached] - doing backend query for info for domain %s\n",
domain->name ));
- /* we don't cache this call */
- return domain->backend->alternate_name(domain);
+ status = domain->backend->password_policy(domain, mem_ctx, password_policy);
+
+ /* and save it */
+ refresh_sequence_number(domain, False);
+ wcache_save_password_policy(domain, status, password_policy);
+
+ return status;
}
+
/* Invalidate cached user and group lists coherently */
static int traverse_fn(TDB_CONTEXT *the_tdb, TDB_DATA kbuf, TDB_DATA dbuf,
return 0;
}
+/* Invalidate the getpwnam and getgroups entries for a winbindd domain */
+
+void wcache_invalidate_samlogon(struct winbindd_domain *domain,
+ NET_USER_INFO_3 *info3)
+{
+ struct winbind_cache *cache;
+
+ if (!domain)
+ return;
+
+ cache = get_cache(domain);
+ netsamlogon_clear_cached_user(cache->tdb, info3);
+}
+
void wcache_invalidate_cache(void)
{
struct winbindd_domain *domain;
}
}
-/* the ADS backend methods are exposed via this structure */
-struct winbindd_methods cache_methods = {
- True,
- query_user_list,
- enum_dom_groups,
- enum_local_groups,
- name_to_sid,
- sid_to_name,
- query_user,
- lookup_usergroups,
- lookup_useraliases,
- lookup_groupmem,
- sequence_number,
- trusted_domains,
- alternate_name
-};
-
static BOOL init_wcache(void)
{
if (wcache == NULL) {
if (wcache->tdb != NULL)
return True;
- wcache->tdb = tdb_open_log(lock_path("winbindd_cache.tdb"), 5000,
- TDB_CLEAR_IF_FIRST, O_RDWR|O_CREAT, 0600);
+ /* when working offline we must not clear the cache on restart */
+ wcache->tdb = tdb_open_log(lock_path("winbindd_cache.tdb"),
+ WINBINDD_CACHE_TDB_DEFAULT_HASH_SIZE,
+ TDB_DEFAULT /*TDB_CLEAR_IF_FIRST*/, O_RDWR|O_CREAT, 0600);
if (wcache->tdb == NULL) {
DEBUG(0,("Failed to open winbindd_cache.tdb!\n"));
fstr_sprintf(key_str, "DE/%d", pid);
if (tdb_store(wcache->tdb, string_tdb_data(key_str),
- make_tdb_data(response->extra_data,
+ make_tdb_data(response->extra_data.data,
response->length - sizeof(*response)),
TDB_REPLACE) == 0)
return;
SAFE_FREE(data.dptr);
if (response->length == sizeof(*response)) {
- response->extra_data = NULL;
+ response->extra_data.data = NULL;
return True;
}
dump_data(11, data.dptr, data.dsize);
- response->extra_data = data.dptr;
+ response->extra_data.data = data.dptr;
return True;
}
+void cache_cleanup_response(pid_t pid)
+{
+ fstring key_str;
+
+ if (!init_wcache())
+ return;
+
+ fstr_sprintf(key_str, "DR/%d", pid);
+ tdb_delete(wcache->tdb, string_tdb_data(key_str));
+
+ fstr_sprintf(key_str, "DE/%d", pid);
+ tdb_delete(wcache->tdb, string_tdb_data(key_str));
+
+ return;
+}
+
+
BOOL lookup_cached_sid(TALLOC_CTX *mem_ctx, const DOM_SID *sid,
const char **domain_name, const char **name,
enum SID_NAME_USE *type)
return NT_STATUS_IS_OK(status);
}
-void cache_sid2name(struct winbindd_domain *domain, const DOM_SID *sid,
+BOOL lookup_cached_name(TALLOC_CTX *mem_ctx,
+ const char *domain_name,
+ const char *name,
+ DOM_SID *sid,
+ enum SID_NAME_USE *type)
+{
+ struct winbindd_domain *domain;
+ struct winbind_cache *cache;
+ struct cache_entry *centry = NULL;
+ NTSTATUS status;
+ fstring uname;
+
+ domain = find_lookup_domain_from_name(domain_name);
+ if (domain == NULL) {
+ return False;
+ }
+
+ cache = get_cache(domain);
+
+ if (cache->tdb == NULL) {
+ return False;
+ }
+
+ fstrcpy(uname, name);
+ strupper_m(uname);
+
+ centry = wcache_fetch(cache, domain, "NS/%s/%s", domain_name, uname);
+ if (centry == NULL) {
+ return False;
+ }
+
+ if (NT_STATUS_IS_OK(centry->status)) {
+ *type = (enum SID_NAME_USE)centry_uint32(centry);
+ centry_sid(centry, mem_ctx, sid);
+ }
+
+ status = centry->status;
+ centry_free(centry);
+
+ return NT_STATUS_IS_OK(status);
+}
+
+void cache_name2sid(struct winbindd_domain *domain,
const char *domain_name, const char *name,
- enum SID_NAME_USE type)
+ enum SID_NAME_USE type, const DOM_SID *sid)
+{
+ wcache_save_name_to_sid(domain, NT_STATUS_OK, domain_name, name,
+ sid, type);
+}
+
+/* delete all centries that don't have NT_STATUS_OK set */
+static int traverse_fn_cleanup(TDB_CONTEXT *the_tdb, TDB_DATA kbuf,
+ TDB_DATA dbuf, void *state)
+{
+ struct cache_entry *centry;
+ char buf[1024];
+
+ if (!snprintf(buf, kbuf.dsize + 1, "%s", kbuf.dptr)) {
+ return 1;
+ }
+
+ centry = wcache_fetch_raw(buf);
+ if (!centry) {
+ return 0;
+ }
+
+ if (!NT_STATUS_IS_OK(centry->status)) {
+ DEBUG(10,("deleting centry %s\n", buf));
+ tdb_delete(the_tdb, kbuf);
+ }
+
+ centry_free(centry);
+ return 0;
+}
+
+/* flush the cache */
+void wcache_flush_cache(void)
+{
+ extern BOOL opt_nocache;
+
+ if (!wcache)
+ return;
+ if (wcache->tdb) {
+ tdb_close(wcache->tdb);
+ wcache->tdb = NULL;
+ }
+ if (opt_nocache)
+ return;
+
+ /* when working offline we must not clear the cache on restart */
+ wcache->tdb = tdb_open_log(lock_path("winbindd_cache.tdb"),
+ WINBINDD_CACHE_TDB_DEFAULT_HASH_SIZE,
+ TDB_DEFAULT /* TDB_CLEAR_IF_FIRST */, O_RDWR|O_CREAT, 0600);
+
+ if (!wcache->tdb) {
+ DEBUG(0,("Failed to open winbindd_cache.tdb!\n"));
+ }
+
+ tdb_traverse(wcache->tdb, traverse_fn_cleanup, NULL);
+
+ DEBUG(10,("wcache_flush_cache success\n"));
+}
+
+/* Count cached creds */
+
+static int traverse_fn_cached_creds(TDB_CONTEXT *the_tdb, TDB_DATA kbuf, TDB_DATA dbuf,
+ void *state)
+{
+ int *cred_count = (int*)state;
+
+ if (strncmp(kbuf.dptr, "CRED/", 5) == 0) {
+ (*cred_count)++;
+ }
+ return 0;
+}
+
+NTSTATUS wcache_count_cached_creds(struct winbindd_domain *domain, int *count)
+{
+ struct winbind_cache *cache = get_cache(domain);
+
+ *count = 0;
+
+ if (!cache->tdb) {
+ return NT_STATUS_INTERNAL_DB_ERROR;
+ }
+
+ tdb_traverse(cache->tdb, traverse_fn_cached_creds, (void *)count);
+
+ return NT_STATUS_OK;
+}
+
+struct cred_list {
+ struct cred_list *prev, *next;
+ TDB_DATA key;
+ fstring name;
+ time_t created;
+};
+static struct cred_list *wcache_cred_list;
+
+static int traverse_fn_get_credlist(TDB_CONTEXT *the_tdb, TDB_DATA kbuf, TDB_DATA dbuf,
+ void *state)
+{
+ struct cred_list *cred;
+
+ if (strncmp(kbuf.dptr, "CRED/", 5) == 0) {
+
+ cred = SMB_MALLOC_P(struct cred_list);
+ if (cred == NULL) {
+ DEBUG(0,("traverse_fn_remove_first_creds: failed to malloc new entry for list\n"));
+ return -1;
+ }
+
+ ZERO_STRUCTP(cred);
+
+ /* save a copy of the key */
+
+ fstrcpy(cred->name, kbuf.dptr);
+ DLIST_ADD(wcache_cred_list, cred);
+ }
+
+ return 0;
+}
+
+NTSTATUS wcache_remove_oldest_cached_creds(struct winbindd_domain *domain, const DOM_SID *sid)
+{
+ struct winbind_cache *cache = get_cache(domain);
+ NTSTATUS status;
+ int ret;
+ struct cred_list *cred, *oldest = NULL;
+
+ if (!cache->tdb) {
+ return NT_STATUS_INTERNAL_DB_ERROR;
+ }
+
+ /* we possibly already have an entry */
+ if (sid && NT_STATUS_IS_OK(wcache_cached_creds_exist(domain, sid))) {
+
+ fstring key_str;
+
+ DEBUG(11,("we already have an entry, deleting that\n"));
+
+ fstr_sprintf(key_str, "CRED/%s", sid_string_static(sid));
+
+ tdb_delete(cache->tdb, string_tdb_data(key_str));
+
+ return NT_STATUS_OK;
+ }
+
+ ret = tdb_traverse(cache->tdb, traverse_fn_get_credlist, NULL);
+ if (ret == 0) {
+ return NT_STATUS_OK;
+ } else if (ret == -1) {
+ return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ }
+
+ ZERO_STRUCTP(oldest);
+
+ for (cred = wcache_cred_list; cred; cred = cred->next) {
+
+ TDB_DATA data;
+ time_t t;
+
+ data = tdb_fetch(cache->tdb, make_tdb_data(cred->name, strlen(cred->name)));
+ if (!data.dptr) {
+ DEBUG(10,("wcache_remove_oldest_cached_creds: entry for [%s] not found\n",
+ cred->name));
+ status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
+ goto done;
+ }
+
+ t = IVAL(data.dptr, 0);
+ SAFE_FREE(data.dptr);
+
+ if (!oldest) {
+ oldest = SMB_MALLOC_P(struct cred_list);
+ if (oldest == NULL) {
+ status = NT_STATUS_NO_MEMORY;
+ goto done;
+ }
+
+ fstrcpy(oldest->name, cred->name);
+ oldest->created = t;
+ continue;
+ }
+
+ if (t < oldest->created) {
+ fstrcpy(oldest->name, cred->name);
+ oldest->created = t;
+ }
+ }
+
+ if (tdb_delete(cache->tdb, string_tdb_data(oldest->name)) == 0) {
+ status = NT_STATUS_OK;
+ } else {
+ status = NT_STATUS_UNSUCCESSFUL;
+ }
+done:
+ SAFE_FREE(wcache_cred_list);
+ SAFE_FREE(oldest);
+
+ return status;
+}
+
+/* Change the global online/offline state. */
+BOOL set_global_winbindd_state_offline(void)
{
- wcache_save_sid_to_name(domain, NT_STATUS_OK, sid, domain_name,
- name, type);
+ TDB_DATA data;
+ int err;
+
+ DEBUG(10,("set_global_winbindd_state_offline: offline requested.\n"));
+
+ /* Only go offline if someone has created
+ the key "WINBINDD_OFFLINE" in the cache tdb. */
+
+ if (wcache == NULL || wcache->tdb == NULL) {
+ DEBUG(10,("set_global_winbindd_state_offline: wcache not open yet.\n"));
+ return False;
+ }
+
+ if (!lp_winbind_offline_logon()) {
+ DEBUG(10,("set_global_winbindd_state_offline: rejecting.\n"));
+ return False;
+ }
+
+ if (global_winbindd_offline_state) {
+ /* Already offline. */
+ return True;
+ }
+
+ wcache->tdb->ecode = 0;
+
+ data = tdb_fetch_bystring( wcache->tdb, "WINBINDD_OFFLINE" );
+
+ /* As this is a key with no data we don't need to free, we
+ check for existence by looking at tdb_err. */
+
+ err = tdb_error(wcache->tdb);
+
+ if (err == TDB_ERR_NOEXIST) {
+ DEBUG(10,("set_global_winbindd_state_offline: offline state not set.\n"));
+ return False;
+ } else {
+ DEBUG(10,("set_global_winbindd_state_offline: offline state set.\n"));
+ global_winbindd_offline_state = True;
+ return True;
+ }
}
+
+void set_global_winbindd_state_online(void)
+{
+ DEBUG(10,("set_global_winbindd_state_online: online requested.\n"));
+
+ if (!lp_winbind_offline_logon()) {
+ DEBUG(10,("set_global_winbindd_state_online: rejecting.\n"));
+ return;
+ }
+
+ if (!global_winbindd_offline_state) {
+ /* Already online. */
+ return;
+ }
+ global_winbindd_offline_state = False;
+
+ if (!wcache->tdb) {
+ return;
+ }
+
+ /* Ensure there is no key "WINBINDD_OFFLINE" in the cache tdb. */
+ tdb_delete_bystring(wcache->tdb, "WINBINDD_OFFLINE");
+}
+
+/* the cache backend methods are exposed via this structure */
+struct winbindd_methods cache_methods = {
+ True,
+ query_user_list,
+ enum_dom_groups,
+ enum_local_groups,
+ name_to_sid,
+ sid_to_name,
+ query_user,
+ lookup_usergroups,
+ lookup_useraliases,
+ lookup_groupmem,
+ sequence_number,
+ lockout_policy,
+ password_policy,
+ trusted_domains
+};
git.samba.org / tprouty / samba.git / blobdiff