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Diffstat (limited to 'source3/passdb/pdb_interface.c')
| -rw-r--r-- | source3/passdb/pdb_interface.c | 2713 |
1 files changed, 2713 insertions, 0 deletions
diff --git a/source3/passdb/pdb_interface.c b/source3/passdb/pdb_interface.c new file mode 100644 index 0000000..d3648f1 --- /dev/null +++ b/source3/passdb/pdb_interface.c @@ -0,0 +1,2713 @@ +/* + Unix SMB/CIFS implementation. + Password and authentication handling + Copyright (C) Andrew Bartlett 2002 + Copyright (C) Jelmer Vernooij 2002 + Copyright (C) Simo Sorce 2003 + Copyright (C) Volker Lendecke 2006 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include "includes.h" +#include "system/passwd.h" +#include "passdb.h" +#include "secrets.h" +#include "messages.h" +#include "serverid.h" +#include "../librpc/gen_ndr/samr.h" +#include "../librpc/gen_ndr/drsblobs.h" +#include "../librpc/gen_ndr/ndr_drsblobs.h" +#include "../librpc/gen_ndr/idmap.h" +#include "../lib/util/memcache.h" +#include "nsswitch/winbind_client.h" +#include "../libcli/security/security.h" +#include "../lib/util/util_pw.h" +#include "passdb/pdb_secrets.h" +#include "lib/util_sid_passdb.h" +#include "idmap_cache.h" +#include "lib/util/string_wrappers.h" +#include "lib/global_contexts.h" + +#undef DBGC_CLASS +#define DBGC_CLASS DBGC_PASSDB + +static_decl_pdb; + +static struct pdb_init_function_entry *backends = NULL; + +static void lazy_initialize_passdb(void) +{ + static bool initialized = False; + if(initialized) { + return; + } + static_init_pdb(NULL); + initialized = True; +} + +static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid, + const char **name, + enum lsa_SidType *psid_name_use, + uid_t *uid, gid_t *gid); + +NTSTATUS smb_register_passdb(int version, const char *name, pdb_init_function init) +{ + struct pdb_init_function_entry *entry = NULL; + + 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; +} + +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; +} + +const struct pdb_init_function_entry *pdb_get_backends(void) +{ + return backends; +} + + +/* + * The event context for the passdb backend. I know this is a bad hack and yet + * another static variable, but our pdb API is a global thing per + * definition. The first use for this is the LDAP idle function, more might be + * added later. + * + * I don't feel too bad about this static variable, it replaces the + * smb_idle_event_list that used to exist in lib/module.c. -- VL + */ + +static struct tevent_context *pdb_tevent_ctx; + +struct tevent_context *pdb_get_tevent_context(void) +{ + return pdb_tevent_ctx; +} + +/****************************************************************** + Make a pdb_methods from scratch + *******************************************************************/ + +NTSTATUS make_pdb_method_name(struct pdb_methods **methods, const char *selected) +{ + char *module_name = smb_xstrdup(selected); + char *module_location = NULL, *p; + struct pdb_init_function_entry *entry; + NTSTATUS nt_status; + + 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 a 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(methods, module_location); + if (!NT_STATUS_IS_OK(nt_status)) { + 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; + } + + SAFE_FREE(module_name); + + DEBUG(5,("pdb backend %s has a valid init\n", selected)); + + return nt_status; +} + +/****************************************************************** + Return an already initialized pdb_methods structure +*******************************************************************/ + +static struct pdb_methods *pdb_get_methods_reload( bool reload ) +{ + static struct pdb_methods *pdb = NULL; + const char *backend = lp_passdb_backend(); + NTSTATUS status = NT_STATUS_OK; + + if ( pdb && reload ) { + if (pdb->free_private_data != NULL) { + pdb->free_private_data( &(pdb->private_data) ); + } + status = make_pdb_method_name(&pdb, backend); + } + + if ( !pdb ) { + status = make_pdb_method_name(&pdb, backend); + } + + if (!NT_STATUS_IS_OK(status)) { + return NULL; + } + + return pdb; +} + +static struct pdb_methods *pdb_get_methods(void) +{ + struct pdb_methods *pdb; + + pdb = pdb_get_methods_reload(false); + if (!pdb) { + char *msg = NULL; + if (asprintf(&msg, "pdb_get_methods: " + "failed to get pdb methods for backend %s\n", + lp_passdb_backend()) > 0) { + smb_panic(msg); + } else { + smb_panic("pdb_get_methods"); + } + } + + return pdb; +} + +struct pdb_domain_info *pdb_get_domain_info(TALLOC_CTX *mem_ctx) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->get_domain_info(pdb, mem_ctx); +} + +/** + * @brief Check if the user account has been locked out and try to unlock it. + * + * If the user has been automatically locked out and a lockout duration is set, + * then check if we can unlock the account and reset the bad password values. + * + * @param[in] sampass The sam user to check. + * + * @return True if the function was successful, false on an error. + */ +static bool pdb_try_account_unlock(struct samu *sampass) +{ + uint32_t acb_info = pdb_get_acct_ctrl(sampass); + + if ((acb_info & ACB_NORMAL) && (acb_info & ACB_AUTOLOCK)) { + uint32_t lockout_duration; + time_t bad_password_time; + time_t now = time(NULL); + bool ok; + + ok = pdb_get_account_policy(PDB_POLICY_LOCK_ACCOUNT_DURATION, + &lockout_duration); + if (!ok) { + DEBUG(0, ("pdb_try_account_unlock: " + "pdb_get_account_policy failed.\n")); + return false; + } + + if (lockout_duration == (uint32_t) -1 || + lockout_duration == 0) { + DEBUG(9, ("pdb_try_account_unlock: No reset duration, " + "can't reset autolock\n")); + return false; + } + lockout_duration *= 60; + + bad_password_time = pdb_get_bad_password_time(sampass); + if (bad_password_time == (time_t) 0) { + DEBUG(2, ("pdb_try_account_unlock: Account %s " + "administratively locked out " + "with no bad password " + "time. Leaving locked out.\n", + pdb_get_username(sampass))); + return true; + } + + if ((bad_password_time + + convert_uint32_t_to_time_t(lockout_duration)) < now) { + NTSTATUS status; + + pdb_set_acct_ctrl(sampass, acb_info & ~ACB_AUTOLOCK, + PDB_CHANGED); + pdb_set_bad_password_count(sampass, 0, PDB_CHANGED); + pdb_set_bad_password_time(sampass, 0, PDB_CHANGED); + + become_root(); + status = pdb_update_sam_account(sampass); + unbecome_root(); + if (!NT_STATUS_IS_OK(status)) { + DEBUG(0, ("_samr_OpenUser: Couldn't " + "update account %s - %s\n", + pdb_get_username(sampass), + nt_errstr(status))); + return false; + } + } + } + + return true; +} + +/** + * @brief Get a sam user structure by the given username. + * + * This functions also checks if the account has been automatically locked out + * and unlocks it if a lockout duration time has been defined and the time has + * elapsed. + * + * @param[in] sam_acct The sam user structure to fill. + * + * @param[in] username The username to look for. + * + * @return True on success, false on error. + */ +bool pdb_getsampwnam(struct samu *sam_acct, const char *username) +{ + struct pdb_methods *pdb = pdb_get_methods(); + struct samu *for_cache; + const struct dom_sid *user_sid; + NTSTATUS status; + bool ok; + + status = pdb->getsampwnam(pdb, sam_acct, username); + if (!NT_STATUS_IS_OK(status)) { + return false; + } + + ok = pdb_try_account_unlock(sam_acct); + if (!ok) { + DEBUG(1, ("pdb_getsampwnam: Failed to unlock account %s\n", + username)); + } + + for_cache = samu_new(NULL); + if (for_cache == NULL) { + return False; + } + + if (!pdb_copy_sam_account(for_cache, sam_acct)) { + TALLOC_FREE(for_cache); + return False; + } + + user_sid = pdb_get_user_sid(for_cache); + + ok = memcache_add_talloc(NULL, + PDB_GETPWSID_CACHE, + data_blob_const(user_sid, sizeof(*user_sid)), + &for_cache); + if (!ok) { + TALLOC_FREE(for_cache); + } + + return True; +} + +/********************************************************************** +**********************************************************************/ + +static bool guest_user_info( struct samu *user ) +{ + struct passwd *pwd; + NTSTATUS result; + const char *guestname = lp_guest_account(); + + pwd = Get_Pwnam_alloc(talloc_tos(), guestname); + if (pwd == NULL) { + DEBUG(0,("guest_user_info: Unable to locate guest account [%s]!\n", + guestname)); + return False; + } + + result = samu_set_unix(user, pwd ); + + TALLOC_FREE( pwd ); + + return NT_STATUS_IS_OK( result ); +} + +/** + * @brief Get a sam user structure by the given username. + * + * This functions also checks if the account has been automatically locked out + * and unlocks it if a lockout duration time has been defined and the time has + * elapsed. + * + * + * @param[in] sam_acct The sam user structure to fill. + * + * @param[in] sid The user SDI to look up. + * + * @return True on success, false on error. + */ +bool pdb_getsampwsid(struct samu *sam_acct, const struct dom_sid *sid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + uint32_t rid; + void *cache_data; + bool ok = false; + + /* hard code the Guest RID of 501 */ + + if ( !sid_peek_check_rid( get_global_sam_sid(), sid, &rid ) ) + return False; + + if ( rid == DOMAIN_RID_GUEST ) { + DEBUG(6,("pdb_getsampwsid: Building guest account\n")); + return guest_user_info( sam_acct ); + } + + /* check the cache first */ + + cache_data = memcache_lookup_talloc( + NULL, PDB_GETPWSID_CACHE, data_blob_const(sid, sizeof(*sid))); + + if (cache_data != NULL) { + struct samu *cache_copy = talloc_get_type_abort( + cache_data, struct samu); + + ok = pdb_copy_sam_account(sam_acct, cache_copy); + } else { + ok = NT_STATUS_IS_OK(pdb->getsampwsid(pdb, sam_acct, sid)); + } + + if (!ok) { + return false; + } + + ok = pdb_try_account_unlock(sam_acct); + if (!ok) { + DEBUG(1, ("pdb_getsampwsid: Failed to unlock account %s\n", + sam_acct->username)); + } + + return true; +} + +static NTSTATUS pdb_default_create_user(struct pdb_methods *methods, + TALLOC_CTX *tmp_ctx, const char *name, + uint32_t acb_info, uint32_t *rid) +{ + const struct loadparm_substitution *lp_sub = + loadparm_s3_global_substitution(); + struct samu *sam_pass; + NTSTATUS status; + struct passwd *pwd; + + if ((sam_pass = samu_new(tmp_ctx)) == NULL) { + return NT_STATUS_NO_MEMORY; + } + + if ( !(pwd = Get_Pwnam_alloc(tmp_ctx, name)) ) { + char *add_script = NULL; + int add_ret; + fstring name2; + + if ((acb_info & ACB_NORMAL) && name[strlen(name)-1] != '$') { + add_script = lp_add_user_script(tmp_ctx, lp_sub); + } else { + add_script = lp_add_machine_script(tmp_ctx, lp_sub); + } + + if (!add_script || add_script[0] == '\0') { + DEBUG(3, ("Could not find user %s and no add script " + "defined\n", name)); + return NT_STATUS_NO_SUCH_USER; + } + + /* lowercase the username before creating the Unix account for + compatibility with previous Samba releases */ + fstrcpy( name2, name ); + if (!strlower_m( name2 )) { + return NT_STATUS_INVALID_PARAMETER; + } + add_script = talloc_all_string_sub(tmp_ctx, + add_script, + "%u", + name2); + if (!add_script) { + return NT_STATUS_NO_MEMORY; + } + add_ret = smbrun(add_script, NULL, NULL); + DEBUG(add_ret ? 0 : 3, ("_samr_create_user: Running the command `%s' gave %d\n", + add_script, add_ret)); + if (add_ret == 0) { + smb_nscd_flush_user_cache(); + } + + flush_pwnam_cache(); + + pwd = Get_Pwnam_alloc(tmp_ctx, name); + + if(pwd == NULL) { + DEBUG(3, ("Could not find user %s, add script did not work\n", name)); + return NT_STATUS_NO_SUCH_USER; + } + } + + /* we have a valid SID coming out of this call */ + + status = samu_alloc_rid_unix(methods, sam_pass, pwd); + + TALLOC_FREE( pwd ); + + if (!NT_STATUS_IS_OK(status)) { + DEBUG(3, ("pdb_default_create_user: failed to create a new user structure: %s\n", nt_errstr(status))); + return status; + } + + if (!sid_peek_check_rid(get_global_sam_sid(), + pdb_get_user_sid(sam_pass), rid)) { + DEBUG(0, ("Could not get RID of fresh user\n")); + return NT_STATUS_INTERNAL_ERROR; + } + + /* Use the username case specified in the original request */ + + pdb_set_username( sam_pass, name, PDB_SET ); + + /* Disable the account on creation, it does not have a reasonable password yet. */ + + acb_info |= ACB_DISABLED; + + pdb_set_acct_ctrl(sam_pass, acb_info, PDB_CHANGED); + + status = methods->add_sam_account(methods, sam_pass); + + TALLOC_FREE(sam_pass); + + return status; +} + +NTSTATUS pdb_create_user(TALLOC_CTX *mem_ctx, const char *name, uint32_t flags, + uint32_t *rid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->create_user(pdb, mem_ctx, name, flags, rid); +} + +/**************************************************************************** + Delete a UNIX user on demand. +****************************************************************************/ + +static int smb_delete_user(const char *unix_user) +{ + const struct loadparm_substitution *lp_sub = + loadparm_s3_global_substitution(); + char *del_script = NULL; + int ret; + + /* safety check */ + + if ( strequal( unix_user, "root" ) ) { + DEBUG(0,("smb_delete_user: Refusing to delete local system root account!\n")); + return -1; + } + + del_script = lp_delete_user_script(talloc_tos(), lp_sub); + if (!del_script || !*del_script) { + return -1; + } + del_script = talloc_all_string_sub(talloc_tos(), + del_script, + "%u", + unix_user); + if (!del_script) { + return -1; + } + ret = smbrun(del_script, NULL, NULL); + flush_pwnam_cache(); + if (ret == 0) { + smb_nscd_flush_user_cache(); + } + DEBUG(ret ? 0 : 3,("smb_delete_user: Running the command `%s' gave %d\n",del_script,ret)); + + return ret; +} + +static NTSTATUS pdb_default_delete_user(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + struct samu *sam_acct) +{ + NTSTATUS status; + fstring username; + + status = methods->delete_sam_account(methods, sam_acct); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + /* + * Now delete the unix side .... + * note: we don't check if the delete really happened as the script is + * not necessary present and maybe the sysadmin doesn't want to delete + * the unix side + */ + + /* always lower case the username before handing it off to + external scripts */ + + fstrcpy( username, pdb_get_username(sam_acct) ); + if (!strlower_m( username )) { + return status; + } + + smb_delete_user( username ); + + return status; +} + +NTSTATUS pdb_delete_user(TALLOC_CTX *mem_ctx, struct samu *sam_acct) +{ + struct pdb_methods *pdb = pdb_get_methods(); + uid_t uid = -1; + NTSTATUS status; + const struct dom_sid *user_sid; + char *msg_data; + + user_sid = pdb_get_user_sid(sam_acct); + + /* sanity check to make sure we don't delete root */ + + if ( !sid_to_uid(user_sid, &uid ) ) { + return NT_STATUS_NO_SUCH_USER; + } + + if ( uid == 0 ) { + return NT_STATUS_ACCESS_DENIED; + } + + memcache_delete(NULL, + PDB_GETPWSID_CACHE, + data_blob_const(user_sid, sizeof(*user_sid))); + + status = pdb->delete_user(pdb, mem_ctx, sam_acct); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + msg_data = talloc_asprintf(mem_ctx, "USER %s", + pdb_get_username(sam_acct)); + if (!msg_data) { + /* not fatal, and too late to rollback, + * just return */ + return status; + } + messaging_send_all(global_messaging_context(), + ID_CACHE_DELETE, + msg_data, + strlen(msg_data) + 1); + + TALLOC_FREE(msg_data); + return status; +} + +NTSTATUS pdb_add_sam_account(struct samu *sam_acct) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->add_sam_account(pdb, sam_acct); +} + +NTSTATUS pdb_update_sam_account(struct samu *sam_acct) +{ + struct pdb_methods *pdb = pdb_get_methods(); + + memcache_flush(NULL, PDB_GETPWSID_CACHE); + + return pdb->update_sam_account(pdb, sam_acct); +} + +NTSTATUS pdb_delete_sam_account(struct samu *sam_acct) +{ + struct pdb_methods *pdb = pdb_get_methods(); + const struct dom_sid *user_sid = pdb_get_user_sid(sam_acct); + + memcache_delete(NULL, + PDB_GETPWSID_CACHE, + data_blob_const(user_sid, sizeof(*user_sid))); + + return pdb->delete_sam_account(pdb, sam_acct); +} + +NTSTATUS pdb_rename_sam_account(struct samu *oldname, const char *newname) +{ + struct pdb_methods *pdb = pdb_get_methods(); + uid_t uid; + NTSTATUS status; + + memcache_flush(NULL, PDB_GETPWSID_CACHE); + + /* sanity check to make sure we don't rename root */ + + if ( !sid_to_uid( pdb_get_user_sid(oldname), &uid ) ) { + return NT_STATUS_NO_SUCH_USER; + } + + if ( uid == 0 ) { + return NT_STATUS_ACCESS_DENIED; + } + + status = pdb->rename_sam_account(pdb, oldname, newname); + + /* always flush the cache here just to be safe */ + flush_pwnam_cache(); + + return status; +} + +NTSTATUS pdb_update_login_attempts(struct samu *sam_acct, bool success) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->update_login_attempts(pdb, sam_acct, success); +} + +bool pdb_getgrsid(GROUP_MAP *map, struct dom_sid sid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return NT_STATUS_IS_OK(pdb->getgrsid(pdb, map, sid)); +} + +bool pdb_getgrgid(GROUP_MAP *map, gid_t gid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return NT_STATUS_IS_OK(pdb->getgrgid(pdb, map, gid)); +} + +bool pdb_getgrnam(GROUP_MAP *map, const char *name) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return NT_STATUS_IS_OK(pdb->getgrnam(pdb, map, name)); +} + +static NTSTATUS pdb_default_create_dom_group(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + const char *name, + uint32_t *rid) +{ + struct dom_sid group_sid; + struct group *grp; + struct dom_sid_buf tmp; + + grp = getgrnam(name); + + if (grp == NULL) { + gid_t gid; + + if (smb_create_group(name, &gid) != 0) { + return NT_STATUS_ACCESS_DENIED; + } + + grp = getgrgid(gid); + } + + if (grp == NULL) { + return NT_STATUS_ACCESS_DENIED; + } + + if (pdb_capabilities() & PDB_CAP_STORE_RIDS) { + if (!pdb_new_rid(rid)) { + return NT_STATUS_ACCESS_DENIED; + } + } else { + *rid = algorithmic_pdb_gid_to_group_rid( grp->gr_gid ); + } + + sid_compose(&group_sid, get_global_sam_sid(), *rid); + + return add_initial_entry( + grp->gr_gid, + dom_sid_str_buf(&group_sid, &tmp), + SID_NAME_DOM_GRP, + name, + NULL); +} + +NTSTATUS pdb_create_dom_group(TALLOC_CTX *mem_ctx, const char *name, + uint32_t *rid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->create_dom_group(pdb, mem_ctx, name, rid); +} + +static NTSTATUS pdb_default_delete_dom_group(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + uint32_t rid) +{ + struct dom_sid group_sid; + GROUP_MAP *map; + NTSTATUS status; + struct group *grp; + const char *grp_name; + + map = talloc_zero(mem_ctx, GROUP_MAP); + if (!map) { + return NT_STATUS_NO_MEMORY; + } + + /* coverity */ + map->gid = (gid_t) -1; + + sid_compose(&group_sid, get_global_sam_sid(), rid); + + if (!get_domain_group_from_sid(group_sid, map)) { + DEBUG(10, ("Could not find group for rid %d\n", rid)); + return NT_STATUS_NO_SUCH_GROUP; + } + + /* We need the group name for the smb_delete_group later on */ + + if (map->gid == (gid_t)-1) { + return NT_STATUS_NO_SUCH_GROUP; + } + + grp = getgrgid(map->gid); + if (grp == NULL) { + return NT_STATUS_NO_SUCH_GROUP; + } + + TALLOC_FREE(map); + + /* Copy the name, no idea what pdb_delete_group_mapping_entry does.. */ + + grp_name = talloc_strdup(mem_ctx, grp->gr_name); + if (grp_name == NULL) { + return NT_STATUS_NO_MEMORY; + } + + status = pdb_delete_group_mapping_entry(group_sid); + + if (!NT_STATUS_IS_OK(status)) { + return status; + } + + /* Don't check the result of smb_delete_group */ + + smb_delete_group(grp_name); + + return NT_STATUS_OK; +} + +NTSTATUS pdb_delete_dom_group(TALLOC_CTX *mem_ctx, uint32_t rid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->delete_dom_group(pdb, mem_ctx, rid); +} + +NTSTATUS pdb_add_group_mapping_entry(GROUP_MAP *map) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->add_group_mapping_entry(pdb, map); +} + +NTSTATUS pdb_update_group_mapping_entry(GROUP_MAP *map) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->update_group_mapping_entry(pdb, map); +} + +NTSTATUS pdb_delete_group_mapping_entry(struct dom_sid sid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->delete_group_mapping_entry(pdb, sid); +} + +bool pdb_enum_group_mapping(const struct dom_sid *sid, + enum lsa_SidType sid_name_use, + GROUP_MAP ***pp_rmap, + size_t *p_num_entries, + bool unix_only) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return NT_STATUS_IS_OK(pdb-> enum_group_mapping(pdb, sid, sid_name_use, + pp_rmap, p_num_entries, unix_only)); +} + +NTSTATUS pdb_enum_group_members(TALLOC_CTX *mem_ctx, + const struct dom_sid *sid, + uint32_t **pp_member_rids, + size_t *p_num_members) +{ + struct pdb_methods *pdb = pdb_get_methods(); + NTSTATUS result; + + result = pdb->enum_group_members(pdb, mem_ctx, + sid, pp_member_rids, p_num_members); + + /* special check for rid 513 */ + + if ( !NT_STATUS_IS_OK( result ) ) { + uint32_t rid; + + sid_peek_rid( sid, &rid ); + + if ( rid == DOMAIN_RID_USERS ) { + *p_num_members = 0; + *pp_member_rids = NULL; + + return NT_STATUS_OK; + } + } + + return result; +} + +NTSTATUS pdb_enum_group_memberships(TALLOC_CTX *mem_ctx, struct samu *user, + struct dom_sid **pp_sids, gid_t **pp_gids, + uint32_t *p_num_groups) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->enum_group_memberships( + pdb, mem_ctx, user, + pp_sids, pp_gids, p_num_groups); +} + +static NTSTATUS pdb_default_set_unix_primary_group(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + struct samu *sampass) +{ + struct group *grp; + gid_t gid; + + if (!sid_to_gid(pdb_get_group_sid(sampass), &gid) || + (grp = getgrgid(gid)) == NULL) { + return NT_STATUS_INVALID_PRIMARY_GROUP; + } + + if (smb_set_primary_group(grp->gr_name, + pdb_get_username(sampass)) != 0) { + return NT_STATUS_ACCESS_DENIED; + } + + return NT_STATUS_OK; +} + +NTSTATUS pdb_set_unix_primary_group(TALLOC_CTX *mem_ctx, struct samu *user) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->set_unix_primary_group(pdb, mem_ctx, user); +} + +/* + * Helper function to see whether a user is in a group. We can't use + * user_in_group_sid here because this creates dependencies only smbd can + * fulfil. + */ + +static bool pdb_user_in_group(TALLOC_CTX *mem_ctx, struct samu *account, + const struct dom_sid *group_sid) +{ + struct dom_sid *sids; + gid_t *gids; + uint32_t i, num_groups; + + if (!NT_STATUS_IS_OK(pdb_enum_group_memberships(mem_ctx, account, + &sids, &gids, + &num_groups))) { + return False; + } + + for (i=0; i<num_groups; i++) { + if (dom_sid_equal(group_sid, &sids[i])) { + return True; + } + } + return False; +} + +static NTSTATUS pdb_default_add_groupmem(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + uint32_t group_rid, + uint32_t member_rid) +{ + struct dom_sid group_sid, member_sid; + struct samu *account = NULL; + GROUP_MAP *map; + struct group *grp; + struct passwd *pwd; + const char *group_name; + uid_t uid; + + map = talloc_zero(mem_ctx, GROUP_MAP); + if (!map) { + return NT_STATUS_NO_MEMORY; + } + + /* coverity */ + map->gid = (gid_t) -1; + + sid_compose(&group_sid, get_global_sam_sid(), group_rid); + sid_compose(&member_sid, get_global_sam_sid(), member_rid); + + if (!get_domain_group_from_sid(group_sid, map) || + (map->gid == (gid_t)-1) || + ((grp = getgrgid(map->gid)) == NULL)) { + return NT_STATUS_NO_SUCH_GROUP; + } + + TALLOC_FREE(map); + + group_name = talloc_strdup(mem_ctx, grp->gr_name); + if (group_name == NULL) { + return NT_STATUS_NO_MEMORY; + } + + if ( !(account = samu_new( NULL )) ) { + return NT_STATUS_NO_MEMORY; + } + + if (!pdb_getsampwsid(account, &member_sid) || + !sid_to_uid(&member_sid, &uid) || + ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) { + return NT_STATUS_NO_SUCH_USER; + } + + if (pdb_user_in_group(mem_ctx, account, &group_sid)) { + return NT_STATUS_MEMBER_IN_GROUP; + } + + /* + * ok, the group exist, the user exist, the user is not in the group, + * we can (finally) add it to the group ! + */ + + smb_add_user_group(group_name, pwd->pw_name); + + if (!pdb_user_in_group(mem_ctx, account, &group_sid)) { + return NT_STATUS_ACCESS_DENIED; + } + + return NT_STATUS_OK; +} + +NTSTATUS pdb_add_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid, + uint32_t member_rid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->add_groupmem(pdb, mem_ctx, group_rid, member_rid); +} + +static NTSTATUS pdb_default_del_groupmem(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + uint32_t group_rid, + uint32_t member_rid) +{ + struct dom_sid group_sid, member_sid; + struct samu *account = NULL; + GROUP_MAP *map; + struct group *grp; + struct passwd *pwd; + const char *group_name; + uid_t uid; + + map = talloc_zero(mem_ctx, GROUP_MAP); + if (!map) { + return NT_STATUS_NO_MEMORY; + } + + sid_compose(&group_sid, get_global_sam_sid(), group_rid); + sid_compose(&member_sid, get_global_sam_sid(), member_rid); + + if (!get_domain_group_from_sid(group_sid, map) || + (map->gid == (gid_t)-1) || + ((grp = getgrgid(map->gid)) == NULL)) { + return NT_STATUS_NO_SUCH_GROUP; + } + + TALLOC_FREE(map); + + group_name = talloc_strdup(mem_ctx, grp->gr_name); + if (group_name == NULL) { + return NT_STATUS_NO_MEMORY; + } + + if ( !(account = samu_new( NULL )) ) { + return NT_STATUS_NO_MEMORY; + } + + if (!pdb_getsampwsid(account, &member_sid) || + !sid_to_uid(&member_sid, &uid) || + ((pwd = getpwuid_alloc(mem_ctx, uid)) == NULL)) { + return NT_STATUS_NO_SUCH_USER; + } + + if (!pdb_user_in_group(mem_ctx, account, &group_sid)) { + return NT_STATUS_MEMBER_NOT_IN_GROUP; + } + + /* + * ok, the group exist, the user exist, the user is in the group, + * we can (finally) delete it from the group! + */ + + smb_delete_user_group(group_name, pwd->pw_name); + + if (pdb_user_in_group(mem_ctx, account, &group_sid)) { + return NT_STATUS_ACCESS_DENIED; + } + + return NT_STATUS_OK; +} + +NTSTATUS pdb_del_groupmem(TALLOC_CTX *mem_ctx, uint32_t group_rid, + uint32_t member_rid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->del_groupmem(pdb, mem_ctx, group_rid, member_rid); +} + +NTSTATUS pdb_create_alias(const char *name, uint32_t *rid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->create_alias(pdb, name, rid); +} + +NTSTATUS pdb_delete_alias(const struct dom_sid *sid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->delete_alias(pdb, sid); +} + +NTSTATUS pdb_get_aliasinfo(const struct dom_sid *sid, struct acct_info *info) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->get_aliasinfo(pdb, sid, info); +} + +NTSTATUS pdb_set_aliasinfo(const struct dom_sid *sid, struct acct_info *info) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->set_aliasinfo(pdb, sid, info); +} + +NTSTATUS pdb_add_aliasmem(const struct dom_sid *alias, const struct dom_sid *member) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->add_aliasmem(pdb, alias, member); +} + +NTSTATUS pdb_del_aliasmem(const struct dom_sid *alias, const struct dom_sid *member) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->del_aliasmem(pdb, alias, member); +} + +NTSTATUS pdb_enum_aliasmem(const struct dom_sid *alias, TALLOC_CTX *mem_ctx, + struct dom_sid **pp_members, size_t *p_num_members) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->enum_aliasmem(pdb, alias, mem_ctx, pp_members, + p_num_members); +} + +NTSTATUS pdb_enum_alias_memberships(TALLOC_CTX *mem_ctx, + const struct dom_sid *domain_sid, + const struct dom_sid *members, size_t num_members, + uint32_t **pp_alias_rids, + size_t *p_num_alias_rids) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->enum_alias_memberships(pdb, mem_ctx, + domain_sid, + members, num_members, + pp_alias_rids, + p_num_alias_rids); +} + +NTSTATUS pdb_lookup_rids(const struct dom_sid *domain_sid, + int num_rids, + uint32_t *rids, + const char **names, + enum lsa_SidType *attrs) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->lookup_rids(pdb, domain_sid, num_rids, rids, names, attrs); +} + +bool pdb_get_account_policy(enum pdb_policy_type type, uint32_t *value) +{ + struct pdb_methods *pdb = pdb_get_methods(); + NTSTATUS status; + + become_root(); + status = pdb->get_account_policy(pdb, type, value); + unbecome_root(); + + return NT_STATUS_IS_OK(status); +} + +bool pdb_set_account_policy(enum pdb_policy_type type, uint32_t value) +{ + struct pdb_methods *pdb = pdb_get_methods(); + NTSTATUS status; + + become_root(); + status = pdb->set_account_policy(pdb, type, value); + unbecome_root(); + + return NT_STATUS_IS_OK(status); +} + +bool pdb_get_seq_num(time_t *seq_num) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return NT_STATUS_IS_OK(pdb->get_seq_num(pdb, seq_num)); +} + +/* + * Instead of passing down a gid or uid, this function sends down a pointer + * to a unixid. + * + * This acts as an in-out variable so that the idmap functions can correctly + * receive ID_TYPE_BOTH, filling in cache details correctly rather than forcing + * the cache to store ID_TYPE_UID or ID_TYPE_GID. + */ +bool pdb_id_to_sid(struct unixid *id, struct dom_sid *sid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + bool ret; + + ret = pdb->id_to_sid(pdb, id, sid); + + if (ret) { + idmap_cache_set_sid2unixid(sid, id); + } + + return ret; +} + +bool pdb_sid_to_id(const struct dom_sid *sid, struct unixid *id) +{ + struct pdb_methods *pdb = pdb_get_methods(); + bool ret; + + /* only ask the backend if it is responsible */ + if (!sid_check_object_is_for_passdb(sid)) { + return false; + } + + ret = pdb->sid_to_id(pdb, sid, id); + + if (ret) { + idmap_cache_set_sid2unixid(sid, id); + } + + return ret; +} + +uint32_t pdb_capabilities(void) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->capabilities(pdb); +} + +/******************************************************************** + Allocate a new RID from the passdb backend. Verify that it is free + by calling lookup_global_sam_rid() to verify that the RID is not + in use. This handles servers that have existing users or groups + with add RIDs (assigned from previous algorithmic mappings) +********************************************************************/ + +bool pdb_new_rid(uint32_t *rid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + const char *name = NULL; + enum lsa_SidType type; + uint32_t allocated_rid = 0; + int i; + TALLOC_CTX *ctx; + + if ((pdb_capabilities() & PDB_CAP_STORE_RIDS) == 0) { + DEBUG(0, ("Trying to allocate a RID when algorithmic RIDs " + "are active\n")); + return False; + } + + if (algorithmic_rid_base() != BASE_RID) { + DEBUG(0, ("'algorithmic rid base' is set but a passdb backend " + "without algorithmic RIDs is chosen.\n")); + DEBUGADD(0, ("Please map all used groups using 'net groupmap " + "add', set the maximum used RID\n")); + DEBUGADD(0, ("and remove the parameter\n")); + return False; + } + + if ( (ctx = talloc_init("pdb_new_rid")) == NULL ) { + DEBUG(0,("pdb_new_rid: Talloc initialization failure\n")); + return False; + } + + /* Attempt to get an unused RID (max tires is 250...yes that it is + and arbitrary number I pulkled out of my head). -- jerry */ + + for ( i=0; allocated_rid==0 && i<250; i++ ) { + /* get a new RID */ + + if ( !pdb->new_rid(pdb, &allocated_rid) ) { + return False; + } + + /* validate that the RID is not in use */ + + if (lookup_global_sam_rid(ctx, allocated_rid, &name, &type, NULL, NULL)) { + allocated_rid = 0; + } + } + + TALLOC_FREE( ctx ); + + if ( allocated_rid == 0 ) { + DEBUG(0,("pdb_new_rid: Failed to find unused RID\n")); + return False; + } + + *rid = allocated_rid; + + return True; +} + +/*************************************************************** + Initialize the static context (at smbd startup etc). + + If uninitialised, context will auto-init on first use. + ***************************************************************/ + +bool initialize_password_db(bool reload, struct tevent_context *tevent_ctx) +{ + if (tevent_ctx) { + pdb_tevent_ctx = tevent_ctx; + } + return (pdb_get_methods_reload(reload) != NULL); +} + +/*************************************************************************** + Default implementations of some functions. + ****************************************************************************/ + +static NTSTATUS pdb_default_getsampwnam (struct pdb_methods *methods, struct samu *user, const char *sname) +{ + return NT_STATUS_NO_SUCH_USER; +} + +static NTSTATUS pdb_default_getsampwsid(struct pdb_methods *my_methods, struct samu * user, const struct dom_sid *sid) +{ + return NT_STATUS_NO_SUCH_USER; +} + +static NTSTATUS pdb_default_add_sam_account (struct pdb_methods *methods, struct samu *newpwd) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +static NTSTATUS pdb_default_update_sam_account (struct pdb_methods *methods, struct samu *newpwd) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +static NTSTATUS pdb_default_delete_sam_account (struct pdb_methods *methods, struct samu *pwd) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +static NTSTATUS pdb_default_rename_sam_account (struct pdb_methods *methods, struct samu *pwd, const char *newname) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +static NTSTATUS pdb_default_update_login_attempts (struct pdb_methods *methods, struct samu *newpwd, bool success) +{ + /* Only the pdb_nds backend implements this, by + * default just return ok. */ + return NT_STATUS_OK; +} + +static NTSTATUS pdb_default_get_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t *value) +{ + return account_policy_get(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL; +} + +static NTSTATUS pdb_default_set_account_policy(struct pdb_methods *methods, enum pdb_policy_type type, uint32_t value) +{ + return account_policy_set(type, value) ? NT_STATUS_OK : NT_STATUS_UNSUCCESSFUL; +} + +static NTSTATUS pdb_default_get_seq_num(struct pdb_methods *methods, time_t *seq_num) +{ + *seq_num = time(NULL); + return NT_STATUS_OK; +} + +static bool pdb_default_uid_to_sid(struct pdb_methods *methods, uid_t uid, + struct dom_sid *sid) +{ + struct samu *sampw = NULL; + struct passwd *unix_pw; + fstring pw_name = { 0 }; + bool ret; + + unix_pw = getpwuid( uid ); + + if ( !unix_pw ) { + DEBUG(4,("pdb_default_uid_to_sid: host has no idea of uid " + "%lu\n", (unsigned long)uid)); + return False; + } + + if (unix_pw->pw_name == NULL) { + DBG_DEBUG("No pw_name for uid %d\n", (int)uid); + return false; + } + + /* + * Make a copy, "unix_pw" might go away soon. + */ + fstrcpy(pw_name, unix_pw->pw_name); + + if ( !(sampw = samu_new( NULL )) ) { + DEBUG(0,("pdb_default_uid_to_sid: samu_new() failed!\n")); + return False; + } + + become_root(); + ret = NT_STATUS_IS_OK(methods->getsampwnam(methods, sampw, pw_name)); + unbecome_root(); + + if (!ret) { + DEBUG(5, ("pdb_default_uid_to_sid: Did not find user " + "%s (%u)\n", unix_pw->pw_name, (unsigned int)uid)); + TALLOC_FREE(sampw); + return False; + } + + sid_copy(sid, pdb_get_user_sid(sampw)); + + TALLOC_FREE(sampw); + + return True; +} + +static bool pdb_default_gid_to_sid(struct pdb_methods *methods, gid_t gid, + struct dom_sid *sid) +{ + GROUP_MAP *map; + + map = talloc_zero(NULL, GROUP_MAP); + if (!map) { + return false; + } + + if (!NT_STATUS_IS_OK(methods->getgrgid(methods, map, gid))) { + TALLOC_FREE(map); + return false; + } + + sid_copy(sid, &map->sid); + TALLOC_FREE(map); + return true; +} + +static bool pdb_default_id_to_sid(struct pdb_methods *methods, struct unixid *id, + struct dom_sid *sid) +{ + switch (id->type) { + case ID_TYPE_UID: + return pdb_default_uid_to_sid(methods, id->id, sid); + + case ID_TYPE_GID: + return pdb_default_gid_to_sid(methods, id->id, sid); + + default: + return false; + } +} +/** + * The "Unix User" and "Unix Group" domains have a special + * id mapping that is a rid-algorithm with range starting at 0. + */ +bool pdb_sid_to_id_unix_users_and_groups(const struct dom_sid *sid, + struct unixid *id) +{ + uint32_t rid; + + id->id = -1; + + if (sid_peek_check_rid(&global_sid_Unix_Users, sid, &rid)) { + id->id = rid; + id->type = ID_TYPE_UID; + return true; + } + + if (sid_peek_check_rid(&global_sid_Unix_Groups, sid, &rid)) { + id->id = rid; + id->type = ID_TYPE_GID; + return true; + } + + return false; +} + +static bool pdb_default_sid_to_id(struct pdb_methods *methods, + const struct dom_sid *sid, + struct unixid *id) +{ + TALLOC_CTX *mem_ctx; + bool ret = False; + uint32_t rid; + struct dom_sid_buf buf; + + id->id = -1; + + mem_ctx = talloc_new(NULL); + + if (mem_ctx == NULL) { + DEBUG(0, ("talloc_new failed\n")); + return False; + } + + if (sid_peek_check_rid(get_global_sam_sid(), sid, &rid)) { + const char *name; + enum lsa_SidType type; + uid_t uid = (uid_t)-1; + gid_t gid = (gid_t)-1; + /* Here we might have users as well as groups and aliases */ + ret = lookup_global_sam_rid(mem_ctx, rid, &name, &type, &uid, &gid); + if (ret) { + switch (type) { + case SID_NAME_DOM_GRP: + case SID_NAME_ALIAS: + id->type = ID_TYPE_GID; + id->id = gid; + break; + case SID_NAME_USER: + id->type = ID_TYPE_UID; + id->id = uid; + break; + default: + DEBUG(5, ("SID %s belongs to our domain, and " + "an object exists in the database, " + "but it is neither a user nor a " + "group (got type %d).\n", + dom_sid_str_buf(sid, &buf), + type)); + ret = false; + } + } else { + DEBUG(5, ("SID %s belongs to our domain, but there is " + "no corresponding object in the database.\n", + dom_sid_str_buf(sid, &buf))); + } + goto done; + } + + /* + * "Unix User" and "Unix Group" + */ + ret = pdb_sid_to_id_unix_users_and_groups(sid, id); + if (ret) { + goto done; + } + + /* BUILTIN */ + + if (sid_check_is_in_builtin(sid) || + sid_check_is_in_wellknown_domain(sid)) { + /* Here we only have aliases */ + GROUP_MAP *map; + + map = talloc_zero(mem_ctx, GROUP_MAP); + if (!map) { + ret = false; + goto done; + } + + if (!NT_STATUS_IS_OK(methods->getgrsid(methods, map, *sid))) { + DEBUG(10, ("Could not find map for sid %s\n", + dom_sid_str_buf(sid, &buf))); + goto done; + } + if ((map->sid_name_use != SID_NAME_ALIAS) && + (map->sid_name_use != SID_NAME_WKN_GRP)) { + DEBUG(10, ("Map for sid %s is a %s, expected an " + "alias\n", + dom_sid_str_buf(sid, &buf), + sid_type_lookup(map->sid_name_use))); + goto done; + } + + id->id = map->gid; + id->type = ID_TYPE_GID; + ret = True; + goto done; + } + + DEBUG(5, ("Sid %s is neither ours, a Unix SID, nor builtin\n", + dom_sid_str_buf(sid, &buf))); + + done: + + TALLOC_FREE(mem_ctx); + return ret; +} + +static bool get_memberuids(TALLOC_CTX *mem_ctx, gid_t gid, uid_t **pp_uids, uint32_t *p_num) +{ + struct group *grp; + char **gr; + struct passwd *pwd; + bool winbind_env; + bool ret = False; + + *pp_uids = NULL; + *p_num = 0; + + /* We only look at our own sam, so don't care about imported stuff */ + winbind_env = winbind_env_set(); + (void)winbind_off(); + + if ((grp = getgrgid(gid)) == NULL) { + /* allow winbindd lookups, but only if they weren't already disabled */ + goto done; + } + + /* Primary group members */ + setpwent(); + while ((pwd = getpwent()) != NULL) { + if (pwd->pw_gid == gid) { + if (!add_uid_to_array_unique(mem_ctx, pwd->pw_uid, + pp_uids, p_num)) { + goto done; + } + } + } + endpwent(); + + /* Secondary group members */ + for (gr = grp->gr_mem; (*gr != NULL) && ((*gr)[0] != '\0'); gr += 1) { + struct passwd *pw = getpwnam(*gr); + + if (pw == NULL) + continue; + if (!add_uid_to_array_unique(mem_ctx, pw->pw_uid, pp_uids, p_num)) { + goto done; + } + } + + ret = True; + + done: + + /* allow winbindd lookups, but only if they weren't already disabled */ + if (!winbind_env) { + (void)winbind_on(); + } + + return ret; +} + +static NTSTATUS pdb_default_enum_group_members(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + const struct dom_sid *group, + uint32_t **pp_member_rids, + size_t *p_num_members) +{ + gid_t gid; + uid_t *uids; + uint32_t i, num_uids; + + *pp_member_rids = NULL; + *p_num_members = 0; + + if (!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; + + *pp_member_rids = talloc_zero_array(mem_ctx, uint32_t, num_uids); + + for (i=0; i<num_uids; i++) { + struct dom_sid sid; + + uid_to_sid(&sid, uids[i]); + + if (!sid_check_is_in_our_sam(&sid)) { + DEBUG(5, ("Inconsistent SAM -- group member uid not " + "in our domain\n")); + continue; + } + + sid_peek_rid(&sid, &(*pp_member_rids)[*p_num_members]); + *p_num_members += 1; + } + + return NT_STATUS_OK; +} + +static NTSTATUS pdb_default_enum_group_memberships(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + struct samu *user, + struct dom_sid **pp_sids, + gid_t **pp_gids, + uint32_t *p_num_groups) +{ + size_t i; + gid_t gid; + struct passwd *pw; + const char *username = pdb_get_username(user); + + + /* Ignore the primary group SID. Honor the real Unix primary group. + The primary group SID is only of real use to Windows clients */ + + if ( !(pw = Get_Pwnam_alloc(mem_ctx, username)) ) { + return NT_STATUS_NO_SUCH_USER; + } + + gid = pw->pw_gid; + + TALLOC_FREE( pw ); + + if (!getgroups_unix_user(mem_ctx, username, gid, pp_gids, p_num_groups)) { + return NT_STATUS_NO_SUCH_USER; + } + + if (*p_num_groups == 0) { + smb_panic("primary group missing"); + } + + *pp_sids = talloc_array(mem_ctx, struct dom_sid, *p_num_groups); + + if (*pp_sids == NULL) { + TALLOC_FREE(*pp_gids); + return NT_STATUS_NO_MEMORY; + } + + for (i=0; i<*p_num_groups; i++) { + gid_to_sid(&(*pp_sids)[i], (*pp_gids)[i]); + } + + return NT_STATUS_OK; +} + +/******************************************************************* + Look up a rid in the SAM we're responsible for (i.e. passdb) + ********************************************************************/ + +static bool lookup_global_sam_rid(TALLOC_CTX *mem_ctx, uint32_t rid, + const char **name, + enum lsa_SidType *psid_name_use, + uid_t *uid, gid_t *gid) +{ + struct samu *sam_account = NULL; + GROUP_MAP *map = NULL; + bool ret; + struct dom_sid sid; + + *psid_name_use = SID_NAME_UNKNOWN; + + DEBUG(5,("lookup_global_sam_rid: looking up RID %u.\n", + (unsigned int)rid)); + + sid_compose(&sid, get_global_sam_sid(), rid); + + /* see if the passdb can help us with the name of the user */ + + if ( !(sam_account = samu_new( NULL )) ) { + return False; + } + + map = talloc_zero(mem_ctx, GROUP_MAP); + if (!map) { + return false; + } + + /* BEING ROOT BLOCK */ + become_root(); + ret = pdb_getsampwsid(sam_account, &sid); + if (!ret) { + TALLOC_FREE(sam_account); + ret = pdb_getgrsid(map, sid); + } + unbecome_root(); + /* END BECOME_ROOT BLOCK */ + + if (sam_account || !ret) { + TALLOC_FREE(map); + } + + if (sam_account) { + struct passwd *pw; + + *name = talloc_strdup(mem_ctx, pdb_get_username(sam_account)); + if (!*name) { + TALLOC_FREE(sam_account); + return False; + } + + *psid_name_use = SID_NAME_USER; + + TALLOC_FREE(sam_account); + + if (uid == NULL) { + return True; + } + + pw = Get_Pwnam_alloc(talloc_tos(), *name); + if (pw == NULL) { + return False; + } + *uid = pw->pw_uid; + TALLOC_FREE(pw); + return True; + + } else if (map && (map->gid != (gid_t)-1)) { + + /* do not resolve SIDs to a name unless there is a valid + gid associated with it */ + + *name = talloc_steal(mem_ctx, map->nt_name); + *psid_name_use = map->sid_name_use; + + if (gid) { + *gid = map->gid; + } + + TALLOC_FREE(map); + return True; + } + + TALLOC_FREE(map); + + /* Windows will always map RID 513 to something. On a non-domain + controller, this gets mapped to SERVER\None. */ + + if (uid || gid) { + DEBUG(5, ("Can't find a unix id for an unmapped group\n")); + return False; + } + + if ( rid == DOMAIN_RID_USERS ) { + *name = talloc_strdup(mem_ctx, "None" ); + *psid_name_use = SID_NAME_DOM_GRP; + + return True; + } + + return False; +} + +static NTSTATUS pdb_default_lookup_rids(struct pdb_methods *methods, + const struct dom_sid *domain_sid, + int num_rids, + uint32_t *rids, + const char **names, + enum lsa_SidType *attrs) +{ + int i; + NTSTATUS result; + bool have_mapped = False; + bool have_unmapped = False; + + if (sid_check_is_builtin(domain_sid)) { + + for (i=0; i<num_rids; i++) { + const char *name; + + if (lookup_builtin_rid(names, rids[i], &name)) { + attrs[i] = SID_NAME_ALIAS; + names[i] = name; + DEBUG(5,("lookup_rids: %s:%d\n", + names[i], attrs[i])); + have_mapped = True; + } else { + have_unmapped = True; + attrs[i] = SID_NAME_UNKNOWN; + } + } + goto done; + } + + /* Should not happen, but better check once too many */ + if (!sid_check_is_our_sam(domain_sid)) { + return NT_STATUS_INVALID_HANDLE; + } + + for (i = 0; i < num_rids; i++) { + const char *name; + + if (lookup_global_sam_rid(names, rids[i], &name, &attrs[i], + NULL, NULL)) { + if (name == NULL) { + return NT_STATUS_NO_MEMORY; + } + names[i] = name; + DEBUG(5,("lookup_rids: %s:%d\n", names[i], attrs[i])); + have_mapped = True; + } else { + have_unmapped = True; + attrs[i] = SID_NAME_UNKNOWN; + } + } + + done: + + result = NT_STATUS_NONE_MAPPED; + + if (have_mapped) + result = have_unmapped ? STATUS_SOME_UNMAPPED : NT_STATUS_OK; + + return result; +} + +static int pdb_search_destructor(struct pdb_search *search) +{ + if ((!search->search_ended) && (search->search_end != NULL)) { + search->search_end(search); + } + return 0; +} + +struct pdb_search *pdb_search_init(TALLOC_CTX *mem_ctx, + enum pdb_search_type type) +{ + struct pdb_search *result; + + result = talloc(mem_ctx, struct pdb_search); + if (result == NULL) { + DEBUG(0, ("talloc failed\n")); + return NULL; + } + + result->type = type; + result->cache = NULL; + result->num_entries = 0; + result->cache_size = 0; + result->search_ended = False; + result->search_end = NULL; + + /* Segfault appropriately if not initialized */ + result->next_entry = NULL; + result->search_end = NULL; + + talloc_set_destructor(result, pdb_search_destructor); + + return result; +} + +static void fill_displayentry(TALLOC_CTX *mem_ctx, uint32_t rid, + uint16_t 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); + else + entry->account_name = ""; + + if (fullname != NULL) + entry->fullname = talloc_strdup(mem_ctx, fullname); + else + entry->fullname = ""; + + if (description != NULL) + entry->description = talloc_strdup(mem_ctx, description); + else + entry->description = ""; +} + +struct group_search { + GROUP_MAP **groups; + size_t num_groups, current_group; +}; + +static bool next_entry_groups(struct pdb_search *s, + struct samr_displayentry *entry) +{ + struct group_search *state = (struct group_search *)s->private_data; + uint32_t rid; + GROUP_MAP *map; + + if (state->current_group == state->num_groups) + return False; + + map = state->groups[state->current_group]; + + sid_peek_rid(&map->sid, &rid); + + fill_displayentry(s, rid, 0, map->nt_name, NULL, map->comment, entry); + + state->current_group += 1; + return True; +} + +static void search_end_groups(struct pdb_search *search) +{ + struct group_search *state = + (struct group_search *)search->private_data; + TALLOC_FREE(state->groups); +} + +static bool pdb_search_grouptype(struct pdb_methods *methods, + struct pdb_search *search, + const struct dom_sid *sid, enum lsa_SidType type) +{ + struct group_search *state; + + state = talloc_zero(search, struct group_search); + if (state == NULL) { + DEBUG(0, ("talloc failed\n")); + return False; + } + + if (!NT_STATUS_IS_OK(methods->enum_group_mapping(methods, sid, type, + &state->groups, &state->num_groups, + True))) { + DEBUG(0, ("Could not enum groups\n")); + return False; + } + + state->current_group = 0; + search->private_data = state; + search->next_entry = next_entry_groups; + search->search_end = search_end_groups; + return True; +} + +static bool pdb_default_search_groups(struct pdb_methods *methods, + struct pdb_search *search) +{ + return pdb_search_grouptype(methods, search, get_global_sam_sid(), SID_NAME_DOM_GRP); +} + +static bool pdb_default_search_aliases(struct pdb_methods *methods, + struct pdb_search *search, + const struct dom_sid *sid) +{ + + return pdb_search_grouptype(methods, search, sid, SID_NAME_ALIAS); +} + +static struct samr_displayentry *pdb_search_getentry(struct pdb_search *search, + uint32_t idx) +{ + if (idx < search->num_entries) + return &search->cache[idx]; + + if (search->search_ended) + return NULL; + + while (idx >= search->num_entries) { + struct samr_displayentry entry; + + if (!search->next_entry(search, &entry)) { + search->search_end(search); + search->search_ended = True; + break; + } + + ADD_TO_LARGE_ARRAY(search, struct samr_displayentry, + entry, &search->cache, &search->num_entries, + &search->cache_size); + } + + return (search->num_entries > idx) ? &search->cache[idx] : NULL; +} + +struct pdb_search *pdb_search_users(TALLOC_CTX *mem_ctx, uint32_t acct_flags) +{ + struct pdb_methods *pdb = pdb_get_methods(); + struct pdb_search *result; + + result = pdb_search_init(mem_ctx, PDB_USER_SEARCH); + if (result == NULL) { + return NULL; + } + + if (!pdb->search_users(pdb, result, acct_flags)) { + TALLOC_FREE(result); + return NULL; + } + return result; +} + +struct pdb_search *pdb_search_groups(TALLOC_CTX *mem_ctx) +{ + struct pdb_methods *pdb = pdb_get_methods(); + struct pdb_search *result; + + result = pdb_search_init(mem_ctx, PDB_GROUP_SEARCH); + if (result == NULL) { + return NULL; + } + + if (!pdb->search_groups(pdb, result)) { + TALLOC_FREE(result); + return NULL; + } + return result; +} + +struct pdb_search *pdb_search_aliases(TALLOC_CTX *mem_ctx, const struct dom_sid *sid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + struct pdb_search *result; + + if (pdb == NULL) return NULL; + + result = pdb_search_init(mem_ctx, PDB_ALIAS_SEARCH); + if (result == NULL) { + return NULL; + } + + if (!pdb->search_aliases(pdb, result, sid)) { + TALLOC_FREE(result); + return NULL; + } + return result; +} + +uint32_t pdb_search_entries(struct pdb_search *search, + uint32_t start_idx, uint32_t max_entries, + struct samr_displayentry **result) +{ + struct samr_displayentry *end_entry; + uint32_t 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->num_entries) + return 0; + + return search->num_entries - start_idx; +} + +/******************************************************************* + trustdom methods + *******************************************************************/ + +bool pdb_get_trusteddom_pw(const char *domain, char** pwd, struct dom_sid *sid, + time_t *pass_last_set_time) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->get_trusteddom_pw(pdb, domain, pwd, sid, + pass_last_set_time); +} + +NTSTATUS pdb_get_trusteddom_creds(const char *domain, TALLOC_CTX *mem_ctx, + struct cli_credentials **creds) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->get_trusteddom_creds(pdb, domain, mem_ctx, creds); +} + +bool pdb_set_trusteddom_pw(const char* domain, const char* pwd, + const struct dom_sid *sid) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->set_trusteddom_pw(pdb, domain, pwd, sid); +} + +bool pdb_del_trusteddom_pw(const char *domain) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->del_trusteddom_pw(pdb, domain); +} + +NTSTATUS pdb_enum_trusteddoms(TALLOC_CTX *mem_ctx, uint32_t *num_domains, + struct trustdom_info ***domains) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->enum_trusteddoms(pdb, mem_ctx, num_domains, domains); +} + +/******************************************************************* + the defaults for trustdom methods: + these simply call the original passdb/secrets.c actions, + to be replaced by pdb_ldap. + *******************************************************************/ + +static bool pdb_default_get_trusteddom_pw(struct pdb_methods *methods, + const char *domain, + char** pwd, + struct dom_sid *sid, + time_t *pass_last_set_time) +{ + return secrets_fetch_trusted_domain_password(domain, pwd, + sid, pass_last_set_time); + +} + +static NTSTATUS pdb_default_get_trusteddom_creds(struct pdb_methods *methods, + const char *domain, + TALLOC_CTX *mem_ctx, + struct cli_credentials **creds) +{ + *creds = NULL; + return NT_STATUS_NOT_IMPLEMENTED; +} + +static bool pdb_default_set_trusteddom_pw(struct pdb_methods *methods, + const char* domain, + const char* pwd, + const struct dom_sid *sid) +{ + return secrets_store_trusted_domain_password(domain, pwd, sid); +} + +static bool pdb_default_del_trusteddom_pw(struct pdb_methods *methods, + const char *domain) +{ + return trusted_domain_password_delete(domain); +} + +static NTSTATUS pdb_default_enum_trusteddoms(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + uint32_t *num_domains, + struct trustdom_info ***domains) +{ + return secrets_trusted_domains(mem_ctx, num_domains, domains); +} + +/******************************************************************* + trusted_domain methods + *******************************************************************/ + +NTSTATUS pdb_get_trusted_domain(TALLOC_CTX *mem_ctx, const char *domain, + struct pdb_trusted_domain **td) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->get_trusted_domain(pdb, mem_ctx, domain, td); +} + +NTSTATUS pdb_get_trusted_domain_by_sid(TALLOC_CTX *mem_ctx, struct dom_sid *sid, + struct pdb_trusted_domain **td) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->get_trusted_domain_by_sid(pdb, mem_ctx, sid, td); +} + +NTSTATUS pdb_set_trusted_domain(const char* domain, + const struct pdb_trusted_domain *td) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->set_trusted_domain(pdb, domain, td); +} + +NTSTATUS pdb_del_trusted_domain(const char *domain) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->del_trusted_domain(pdb, domain); +} + +NTSTATUS pdb_enum_trusted_domains(TALLOC_CTX *mem_ctx, uint32_t *num_domains, + struct pdb_trusted_domain ***domains) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->enum_trusted_domains(pdb, mem_ctx, num_domains, domains); +} + +static NTSTATUS pdb_default_get_trusted_domain(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + const char *domain, + struct pdb_trusted_domain **td) +{ + struct trustAuthInOutBlob taiob; + struct AuthenticationInformation aia; + struct pdb_trusted_domain *tdom; + enum ndr_err_code ndr_err; + time_t last_set_time; + char *pwd; + bool ok; + + tdom = talloc(mem_ctx, struct pdb_trusted_domain); + if (!tdom) { + return NT_STATUS_NO_MEMORY; + } + + tdom->domain_name = talloc_strdup(tdom, domain); + tdom->netbios_name = talloc_strdup(tdom, domain); + if (!tdom->domain_name || !tdom->netbios_name) { + talloc_free(tdom); + return NT_STATUS_NO_MEMORY; + } + + tdom->trust_auth_incoming = data_blob_null; + + ok = pdb_get_trusteddom_pw(domain, &pwd, &tdom->security_identifier, + &last_set_time); + if (!ok) { + talloc_free(tdom); + return NT_STATUS_UNSUCCESSFUL; + } + + ZERO_STRUCT(taiob); + ZERO_STRUCT(aia); + taiob.count = 1; + taiob.current.count = 1; + taiob.current.array = &aia; + unix_to_nt_time(&aia.LastUpdateTime, last_set_time); + + aia.AuthType = TRUST_AUTH_TYPE_CLEAR; + aia.AuthInfo.clear.size = strlen(pwd); + aia.AuthInfo.clear.password = (uint8_t *)talloc_memdup(tdom, pwd, + aia.AuthInfo.clear.size); + SAFE_FREE(pwd); + if (aia.AuthInfo.clear.password == NULL) { + talloc_free(tdom); + return NT_STATUS_NO_MEMORY; + } + + taiob.previous.count = 0; + taiob.previous.array = NULL; + + ndr_err = ndr_push_struct_blob(&tdom->trust_auth_outgoing, + tdom, &taiob, + (ndr_push_flags_fn_t)ndr_push_trustAuthInOutBlob); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + talloc_free(tdom); + return NT_STATUS_UNSUCCESSFUL; + } + + tdom->trust_direction = LSA_TRUST_DIRECTION_OUTBOUND; + tdom->trust_type = LSA_TRUST_TYPE_DOWNLEVEL; + tdom->trust_attributes = 0; + tdom->trust_forest_trust_info = data_blob_null; + + *td = tdom; + return NT_STATUS_OK; +} + +static NTSTATUS pdb_default_get_trusted_domain_by_sid(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + struct dom_sid *sid, + struct pdb_trusted_domain **td) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +#define IS_NULL_DATA_BLOB(d) ((d).data == NULL && (d).length == 0) + +static NTSTATUS pdb_default_set_trusted_domain(struct pdb_methods *methods, + const char* domain, + const struct pdb_trusted_domain *td) +{ + struct trustAuthInOutBlob taiob; + struct AuthenticationInformation *aia; + enum ndr_err_code ndr_err; + char *pwd; + bool ok; + + if (td->trust_attributes != 0 || + td->trust_type != LSA_TRUST_TYPE_DOWNLEVEL || + td->trust_direction != LSA_TRUST_DIRECTION_OUTBOUND || + !IS_NULL_DATA_BLOB(td->trust_auth_incoming) || + !IS_NULL_DATA_BLOB(td->trust_forest_trust_info)) { + return NT_STATUS_NOT_IMPLEMENTED; + } + + ZERO_STRUCT(taiob); + ndr_err = ndr_pull_struct_blob(&td->trust_auth_outgoing, talloc_tos(), + &taiob, + (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + return NT_STATUS_UNSUCCESSFUL; + } + + aia = (struct AuthenticationInformation *) taiob.current.array; + + if (taiob.count != 1 || taiob.current.count != 1 || + taiob.previous.count != 0 || + aia->AuthType != TRUST_AUTH_TYPE_CLEAR) { + return NT_STATUS_NOT_IMPLEMENTED; + } + + pwd = talloc_strndup(talloc_tos(), (char *) aia->AuthInfo.clear.password, + aia->AuthInfo.clear.size); + if (!pwd) { + return NT_STATUS_NO_MEMORY; + } + + ok = pdb_set_trusteddom_pw(domain, pwd, &td->security_identifier); + if (!ok) { + return NT_STATUS_UNSUCCESSFUL; + } + + return NT_STATUS_OK; +} + +static NTSTATUS pdb_default_del_trusted_domain(struct pdb_methods *methods, + const char *domain) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +static NTSTATUS pdb_default_enum_trusted_domains(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + uint32_t *num_domains, + struct pdb_trusted_domain ***domains) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +static struct pdb_domain_info *pdb_default_get_domain_info( + struct pdb_methods *m, TALLOC_CTX *mem_ctx) +{ + return NULL; +} + +/***************************************************************** + UPN suffixes + *****************************************************************/ +static NTSTATUS pdb_default_enum_upn_suffixes(struct pdb_methods *pdb, + TALLOC_CTX *mem_ctx, + uint32_t *num_suffixes, + char ***suffixes) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +static NTSTATUS pdb_default_set_upn_suffixes(struct pdb_methods *pdb, + uint32_t num_suffixes, + const char **suffixes) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +NTSTATUS pdb_enum_upn_suffixes(TALLOC_CTX *mem_ctx, + uint32_t *num_suffixes, + char ***suffixes) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->enum_upn_suffixes(pdb, mem_ctx, num_suffixes, suffixes); +} + +NTSTATUS pdb_set_upn_suffixes(uint32_t num_suffixes, + const char **suffixes) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->set_upn_suffixes(pdb, num_suffixes, suffixes); +} + +/******************************************************************* + idmap control methods + *******************************************************************/ +static bool pdb_default_is_responsible_for_our_sam( + struct pdb_methods *methods) +{ + return true; +} + +static bool pdb_default_is_responsible_for_builtin( + struct pdb_methods *methods) +{ + return true; +} + +static bool pdb_default_is_responsible_for_wellknown( + struct pdb_methods *methods) +{ + return false; +} + +static bool pdb_default_is_responsible_for_unix_users( + struct pdb_methods *methods) +{ + return true; +} + +static bool pdb_default_is_responsible_for_unix_groups( + struct pdb_methods *methods) +{ + return true; +} + +static bool pdb_default_is_responsible_for_everything_else( + struct pdb_methods *methods) +{ + return false; +} + +bool pdb_is_responsible_for_our_sam(void) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->is_responsible_for_our_sam(pdb); +} + +bool pdb_is_responsible_for_builtin(void) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->is_responsible_for_builtin(pdb); +} + +bool pdb_is_responsible_for_wellknown(void) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->is_responsible_for_wellknown(pdb); +} + +bool pdb_is_responsible_for_unix_users(void) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->is_responsible_for_unix_users(pdb); +} + +bool pdb_is_responsible_for_unix_groups(void) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->is_responsible_for_unix_groups(pdb); +} + +bool pdb_is_responsible_for_everything_else(void) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->is_responsible_for_everything_else(pdb); +} + +/******************************************************************* + secret methods + *******************************************************************/ + +NTSTATUS pdb_get_secret(TALLOC_CTX *mem_ctx, + const char *secret_name, + DATA_BLOB *secret_current, + NTTIME *secret_current_lastchange, + DATA_BLOB *secret_old, + NTTIME *secret_old_lastchange, + struct security_descriptor **sd) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->get_secret(pdb, mem_ctx, secret_name, + secret_current, secret_current_lastchange, + secret_old, secret_old_lastchange, + sd); +} + +NTSTATUS pdb_set_secret(const char *secret_name, + DATA_BLOB *secret_current, + DATA_BLOB *secret_old, + struct security_descriptor *sd) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->set_secret(pdb, secret_name, + secret_current, + secret_old, + sd); +} + +NTSTATUS pdb_delete_secret(const char *secret_name) +{ + struct pdb_methods *pdb = pdb_get_methods(); + return pdb->delete_secret(pdb, secret_name); +} + +static NTSTATUS pdb_default_get_secret(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + const char *secret_name, + DATA_BLOB *secret_current, + NTTIME *secret_current_lastchange, + DATA_BLOB *secret_old, + NTTIME *secret_old_lastchange, + struct security_descriptor **sd) +{ + return lsa_secret_get(mem_ctx, secret_name, + secret_current, + secret_current_lastchange, + secret_old, + secret_old_lastchange, + sd); +} + +static NTSTATUS pdb_default_set_secret(struct pdb_methods *methods, + const char *secret_name, + DATA_BLOB *secret_current, + DATA_BLOB *secret_old, + struct security_descriptor *sd) +{ + return lsa_secret_set(secret_name, + secret_current, + secret_old, + sd); +} + +static NTSTATUS pdb_default_delete_secret(struct pdb_methods *methods, + const char *secret_name) +{ + return lsa_secret_delete(secret_name); +} + +/******************************************************************* + Create a pdb_methods structure and initialize it with the default + operations. In this way a passdb module can simply implement + the functionality it cares about. However, normally this is done + in groups of related functions. +*******************************************************************/ + +NTSTATUS make_pdb_method( struct pdb_methods **methods ) +{ + /* allocate memory for the structure as its own talloc CTX */ + + *methods = talloc_zero(NULL, struct pdb_methods); + if (*methods == NULL) { + return NT_STATUS_NO_MEMORY; + } + + (*methods)->get_domain_info = pdb_default_get_domain_info; + (*methods)->getsampwnam = pdb_default_getsampwnam; + (*methods)->getsampwsid = pdb_default_getsampwsid; + (*methods)->create_user = pdb_default_create_user; + (*methods)->delete_user = pdb_default_delete_user; + (*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)->rename_sam_account = pdb_default_rename_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)->create_dom_group = pdb_default_create_dom_group; + (*methods)->delete_dom_group = pdb_default_delete_dom_group; + (*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)->set_unix_primary_group = pdb_default_set_unix_primary_group; + (*methods)->add_groupmem = pdb_default_add_groupmem; + (*methods)->del_groupmem = pdb_default_del_groupmem; + (*methods)->create_alias = pdb_default_create_alias; + (*methods)->delete_alias = pdb_default_delete_alias; + (*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; + (*methods)->get_account_policy = pdb_default_get_account_policy; + (*methods)->set_account_policy = pdb_default_set_account_policy; + (*methods)->get_seq_num = pdb_default_get_seq_num; + (*methods)->id_to_sid = pdb_default_id_to_sid; + (*methods)->sid_to_id = pdb_default_sid_to_id; + + (*methods)->search_groups = pdb_default_search_groups; + (*methods)->search_aliases = pdb_default_search_aliases; + + (*methods)->get_trusteddom_pw = pdb_default_get_trusteddom_pw; + (*methods)->get_trusteddom_creds = pdb_default_get_trusteddom_creds; + (*methods)->set_trusteddom_pw = pdb_default_set_trusteddom_pw; + (*methods)->del_trusteddom_pw = pdb_default_del_trusteddom_pw; + (*methods)->enum_trusteddoms = pdb_default_enum_trusteddoms; + + (*methods)->get_trusted_domain = pdb_default_get_trusted_domain; + (*methods)->get_trusted_domain_by_sid = pdb_default_get_trusted_domain_by_sid; + (*methods)->set_trusted_domain = pdb_default_set_trusted_domain; + (*methods)->del_trusted_domain = pdb_default_del_trusted_domain; + (*methods)->enum_trusted_domains = pdb_default_enum_trusted_domains; + + (*methods)->get_secret = pdb_default_get_secret; + (*methods)->set_secret = pdb_default_set_secret; + (*methods)->delete_secret = pdb_default_delete_secret; + + (*methods)->enum_upn_suffixes = pdb_default_enum_upn_suffixes; + (*methods)->set_upn_suffixes = pdb_default_set_upn_suffixes; + + (*methods)->is_responsible_for_our_sam = + pdb_default_is_responsible_for_our_sam; + (*methods)->is_responsible_for_builtin = + pdb_default_is_responsible_for_builtin; + (*methods)->is_responsible_for_wellknown = + pdb_default_is_responsible_for_wellknown; + (*methods)->is_responsible_for_unix_users = + pdb_default_is_responsible_for_unix_users; + (*methods)->is_responsible_for_unix_groups = + pdb_default_is_responsible_for_unix_groups; + (*methods)->is_responsible_for_everything_else = + pdb_default_is_responsible_for_everything_else; + + return NT_STATUS_OK; +} |