diff options
Diffstat (limited to 'source3/passdb/pdb_wbc_sam.c')
| -rw-r--r-- | source3/passdb/pdb_wbc_sam.c | 448 |
1 files changed, 448 insertions, 0 deletions
diff --git a/source3/passdb/pdb_wbc_sam.c b/source3/passdb/pdb_wbc_sam.c new file mode 100644 index 0000000000..33dc03fe4c --- /dev/null +++ b/source3/passdb/pdb_wbc_sam.c @@ -0,0 +1,448 @@ +/* + Unix SMB/CIFS implementation. + + Password and authentication handling by wbclient + + Copyright (C) Andrew Bartlett 2002 + Copyright (C) Jelmer Vernooij 2002 + Copyright (C) Simo Sorce 2003 + Copyright (C) Volker Lendecke 2006 + Copyright (C) Dan Sledz 2009 + + 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/>. +*/ + +/* This passdb module retrieves full passdb information for local users and + * groups from a wbclient compatible daemon. + * + * The purpose of this module is to defer all SAM authorization information + * storage and retrieval to a wbc compatible daemon. + * + * This passdb backend is most useful when used in conjunction with auth_wbc. + * + * A few current limitations of this module are: + * - read only interface + * - no privileges + */ + +#include "includes.h" + +/*************************************************************************** + Default implementations of some functions. + ****************************************************************************/ +static NTSTATUS _pdb_wbc_sam_getsampw(struct pdb_methods *methods, + struct samu *user, + const struct passwd *pwd) +{ + NTSTATUS result = NT_STATUS_OK; + + if (pwd == NULL) + return NT_STATUS_NO_SUCH_USER; + + memset(user, 0, sizeof(user)); + + /* Can we really get away with this little of information */ + user->methods = methods; + result = samu_set_unix(user, pwd); + + return result; +} + +static NTSTATUS pdb_wbc_sam_getsampwnam(struct pdb_methods *methods, struct samu *user, const char *sname) +{ + return _pdb_wbc_sam_getsampw(methods, user, winbind_getpwnam(sname)); +} + +static NTSTATUS pdb_wbc_sam_getsampwsid(struct pdb_methods *methods, struct samu *user, const DOM_SID *sid) +{ + return _pdb_wbc_sam_getsampw(methods, user, winbind_getpwsid(sid)); +} + +static bool pdb_wbc_sam_uid_to_sid(struct pdb_methods *methods, uid_t uid, + DOM_SID *sid) +{ + return winbind_uid_to_sid(sid, uid); +} + +static bool pdb_wbc_sam_gid_to_sid(struct pdb_methods *methods, gid_t gid, + DOM_SID *sid) +{ + return winbind_gid_to_sid(sid, gid); +} + +static bool pdb_wbc_sam_sid_to_id(struct pdb_methods *methods, + const DOM_SID *sid, + union unid_t *id, enum lsa_SidType *type) +{ + if (winbind_sid_to_uid(&id->uid, sid)) { + *type = SID_NAME_USER; + } else if (winbind_sid_to_gid(&id->gid, sid)) { + /* We assume all gids are groups, not aliases */ + *type = SID_NAME_DOM_GRP; + } else { + return false; + } + + return true; +} + +static NTSTATUS pdb_wbc_sam_enum_group_members(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + const DOM_SID *group, + uint32 **pp_member_rids, + size_t *p_num_members) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +static NTSTATUS pdb_wbc_sam_enum_group_memberships(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + struct samu *user, + DOM_SID **pp_sids, + gid_t **pp_gids, + size_t *p_num_groups) +{ + size_t i; + const char *username = pdb_get_username(user); + + if (!winbind_get_groups(mem_ctx, username, p_num_groups, pp_gids)) { + return NT_STATUS_NO_SUCH_USER; + } + + if (*p_num_groups == 0) { + smb_panic("primary group missing"); + } + + *pp_sids = TALLOC_ARRAY(mem_ctx, 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; +} + +static NTSTATUS pdb_wbc_sam_lookup_rids(struct pdb_methods *methods, + const DOM_SID *domain_sid, + int num_rids, + uint32 *rids, + const char **names, + enum lsa_SidType *attrs) +{ + NTSTATUS result = NT_STATUS_OK; + char *domain = NULL; + char **account_names = NULL; + char name[256]; + enum lsa_SidType *attr_list = NULL; + int i; + + if (!winbind_lookup_rids(talloc_tos(), domain_sid, num_rids, rids, + (const char **)&domain, + (const char ***)&account_names, &attr_list)) + { + result = NT_STATUS_NONE_MAPPED; + goto done; + } + + memcpy(attrs, attr_list, num_rids * sizeof(enum lsa_SidType)); + + for (i=0; i<num_rids; i++) { + if (attrs[i] == SID_NAME_UNKNOWN) { + names[i] = NULL; + } else { + snprintf(name, sizeof(name), "%s%c%s", domain, + *lp_winbind_separator(), account_names[i]); + names[i] = talloc_strdup(names, name); + } + } + +done: + TALLOC_FREE(account_names); + TALLOC_FREE(domain); + TALLOC_FREE(attrs); + return result; +} + +static NTSTATUS pdb_wbc_sam_get_account_policy(struct pdb_methods *methods, int policy_index, uint32 *value) +{ + return NT_STATUS_UNSUCCESSFUL; +} + +static NTSTATUS pdb_wbc_sam_set_account_policy(struct pdb_methods *methods, int policy_index, uint32 value) +{ + return NT_STATUS_UNSUCCESSFUL; +} + +static bool pdb_wbc_sam_search_groups(struct pdb_methods *methods, + struct pdb_search *search) +{ + return false; +} + +static bool pdb_wbc_sam_search_aliases(struct pdb_methods *methods, + struct pdb_search *search, + const DOM_SID *sid) +{ + + return false; +} + +static bool pdb_wbc_sam_get_trusteddom_pw(struct pdb_methods *methods, + const char *domain, + char **pwd, + DOM_SID *sid, + time_t *pass_last_set_time) +{ + return false; + +} + +static bool pdb_wbc_sam_set_trusteddom_pw(struct pdb_methods *methods, + const char *domain, + const char *pwd, + const DOM_SID *sid) +{ + return false; +} + +static bool pdb_wbc_sam_del_trusteddom_pw(struct pdb_methods *methods, + const char *domain) +{ + return false; +} + +static NTSTATUS pdb_wbc_sam_enum_trusteddoms(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + uint32 *num_domains, + struct trustdom_info ***domains) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +static bool _make_group_map(struct pdb_methods *methods, const char *domain, const char *name, enum lsa_SidType name_type, gid_t gid, DOM_SID *sid, GROUP_MAP *map) +{ + snprintf(map->nt_name, sizeof(map->nt_name), "%s%c%s", + domain, *lp_winbind_separator(), name); + map->sid_name_use = name_type; + map->sid = *sid; + map->gid = gid; + return true; +} + +static NTSTATUS pdb_wbc_sam_getgrsid(struct pdb_methods *methods, GROUP_MAP *map, + DOM_SID sid) +{ + NTSTATUS result = NT_STATUS_OK; + char *name = NULL; + char *domain = NULL; + enum lsa_SidType name_type; + gid_t gid; + + if (!winbind_lookup_sid(talloc_tos(), &sid, (const char **)&domain, + (const char **) &name, &name_type)) { + result = NT_STATUS_NO_SUCH_GROUP; + goto done; + } + + if ((name_type != SID_NAME_DOM_GRP) && + (name_type != SID_NAME_DOMAIN) && + (name_type != SID_NAME_ALIAS) && + (name_type != SID_NAME_WKN_GRP)) { + result = NT_STATUS_NO_SUCH_GROUP; + goto done; + } + + if (!winbind_sid_to_gid(&gid, &sid)) { + result = NT_STATUS_NO_SUCH_GROUP; + goto done; + } + + if (!_make_group_map(methods, domain, name, name_type, gid, &sid, map)) { + result = NT_STATUS_NO_SUCH_GROUP; + goto done; + } + +done: + TALLOC_FREE(name); + TALLOC_FREE(domain); + return result; +} + +static NTSTATUS pdb_wbc_sam_getgrgid(struct pdb_methods *methods, GROUP_MAP *map, + gid_t gid) +{ + NTSTATUS result = NT_STATUS_OK; + char *name = NULL; + char *domain = NULL; + DOM_SID sid; + enum lsa_SidType name_type; + + if (!winbind_gid_to_sid(&sid, gid)) { + result = NT_STATUS_NO_SUCH_GROUP; + goto done; + } + + if (!winbind_lookup_sid(talloc_tos(), &sid, (const char **)&domain, + (const char **)&name, &name_type)) { + result = NT_STATUS_NO_SUCH_GROUP; + goto done; + } + + if ((name_type != SID_NAME_DOM_GRP) && + (name_type != SID_NAME_DOMAIN) && + (name_type != SID_NAME_ALIAS) && + (name_type != SID_NAME_WKN_GRP)) { + result = NT_STATUS_NO_SUCH_GROUP; + goto done; + } + + if (!_make_group_map(methods, domain, name, name_type, gid, &sid, map)) { + result = NT_STATUS_NO_SUCH_GROUP; + goto done; + } + +done: + TALLOC_FREE(name); + TALLOC_FREE(domain); + + return result; +} + +static NTSTATUS pdb_wbc_sam_getgrnam(struct pdb_methods *methods, GROUP_MAP *map, + const char *name) +{ + NTSTATUS result = NT_STATUS_OK; + char *user_name = NULL; + char *domain = NULL; + DOM_SID sid; + gid_t gid; + enum lsa_SidType name_type; + + if (!winbind_lookup_name(domain, user_name, &sid, &name_type)) { + result = NT_STATUS_NO_SUCH_GROUP; + goto done; + } + + if ((name_type != SID_NAME_DOM_GRP) && + (name_type != SID_NAME_DOMAIN) && + (name_type != SID_NAME_ALIAS) && + (name_type != SID_NAME_WKN_GRP)) { + result = NT_STATUS_NO_SUCH_GROUP; + goto done; + } + + if (!winbind_sid_to_gid(&gid, &sid)) { + result = NT_STATUS_NO_SUCH_GROUP; + goto done; + } + + if (!_make_group_map(methods, domain, user_name, name_type, gid, &sid, map)) { + result = NT_STATUS_NO_SUCH_GROUP; + goto done; + } + +done: + + return result; +} + +static NTSTATUS pdb_wbc_sam_enum_group_mapping(struct pdb_methods *methods, + const DOM_SID *sid, enum lsa_SidType sid_name_use, + GROUP_MAP **pp_rmap, size_t *p_num_entries, + bool unix_only) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +static NTSTATUS pdb_wbc_sam_get_aliasinfo(struct pdb_methods *methods, + const DOM_SID *sid, + struct acct_info *info) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +static NTSTATUS pdb_wbc_sam_enum_aliasmem(struct pdb_methods *methods, + const DOM_SID *alias, DOM_SID **pp_members, + size_t *p_num_members) +{ + return NT_STATUS_NOT_IMPLEMENTED; +} + +static NTSTATUS pdb_wbc_sam_alias_memberships(struct pdb_methods *methods, + TALLOC_CTX *mem_ctx, + const DOM_SID *domain_sid, + const DOM_SID *members, + size_t num_members, + uint32 **pp_alias_rids, + size_t *p_num_alias_rids) +{ + if (!winbind_get_sid_aliases(mem_ctx, domain_sid, + members, num_members, pp_alias_rids, p_num_alias_rids)) + return NT_STATUS_UNSUCCESSFUL; + + return NT_STATUS_OK; +} + +static NTSTATUS pdb_init_wbc_sam(struct pdb_methods **pdb_method, const char *location) +{ + NTSTATUS result; + + if (!NT_STATUS_IS_OK(result = make_pdb_method( pdb_method))) { + return result; + } + + (*pdb_method)->name = "wbc_sam"; + + (*pdb_method)->getsampwnam = pdb_wbc_sam_getsampwnam; + (*pdb_method)->getsampwsid = pdb_wbc_sam_getsampwsid; + + (*pdb_method)->getgrsid = pdb_wbc_sam_getgrsid; + (*pdb_method)->getgrgid = pdb_wbc_sam_getgrgid; + (*pdb_method)->getgrnam = pdb_wbc_sam_getgrnam; + (*pdb_method)->enum_group_mapping = pdb_wbc_sam_enum_group_mapping; + (*pdb_method)->enum_group_members = pdb_wbc_sam_enum_group_members; + (*pdb_method)->enum_group_memberships = pdb_wbc_sam_enum_group_memberships; + (*pdb_method)->get_aliasinfo = pdb_wbc_sam_get_aliasinfo; + (*pdb_method)->enum_aliasmem = pdb_wbc_sam_enum_aliasmem; + (*pdb_method)->enum_alias_memberships = pdb_wbc_sam_alias_memberships; + (*pdb_method)->lookup_rids = pdb_wbc_sam_lookup_rids; + (*pdb_method)->get_account_policy = pdb_wbc_sam_get_account_policy; + (*pdb_method)->set_account_policy = pdb_wbc_sam_set_account_policy; + (*pdb_method)->uid_to_sid = pdb_wbc_sam_uid_to_sid; + (*pdb_method)->gid_to_sid = pdb_wbc_sam_gid_to_sid; + (*pdb_method)->sid_to_id = pdb_wbc_sam_sid_to_id; + + (*pdb_method)->search_groups = pdb_wbc_sam_search_groups; + (*pdb_method)->search_aliases = pdb_wbc_sam_search_aliases; + + (*pdb_method)->get_trusteddom_pw = pdb_wbc_sam_get_trusteddom_pw; + (*pdb_method)->set_trusteddom_pw = pdb_wbc_sam_set_trusteddom_pw; + (*pdb_method)->del_trusteddom_pw = pdb_wbc_sam_del_trusteddom_pw; + (*pdb_method)->enum_trusteddoms = pdb_wbc_sam_enum_trusteddoms; + + (*pdb_method)->private_data = NULL; + (*pdb_method)->free_private_data = NULL; + + return NT_STATUS_OK; +} + +NTSTATUS pdb_wbc_sam_init(void) +{ + return smb_register_passdb(PASSDB_INTERFACE_VERSION, "wbc_sam", pdb_init_wbc_sam); +} |