diff options
Diffstat (limited to 'source3/winbindd/winbindd_rpc.c')
| -rw-r--r-- | source3/winbindd/winbindd_rpc.c | 1167 |
1 files changed, 1167 insertions, 0 deletions
diff --git a/source3/winbindd/winbindd_rpc.c b/source3/winbindd/winbindd_rpc.c new file mode 100644 index 0000000000..bb79d7ec12 --- /dev/null +++ b/source3/winbindd/winbindd_rpc.c @@ -0,0 +1,1167 @@ +/* + Unix SMB/CIFS implementation. + + Winbind rpc backend functions + + Copyright (C) Tim Potter 2000-2001,2003 + Copyright (C) Andrew Tridgell 2001 + Copyright (C) Volker Lendecke 2005 + Copyright (C) Guenther Deschner 2008 (pidl conversion) + + 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 "winbindd.h" + +#undef DBGC_CLASS +#define DBGC_CLASS DBGC_WINBIND + + +/* Query display info for a domain. This returns enough information plus a + bit extra to give an overview of domain users for the User Manager + application. */ +static NTSTATUS query_user_list(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + uint32 *num_entries, + WINBIND_USERINFO **info) +{ + NTSTATUS result; + POLICY_HND dom_pol; + unsigned int i, start_idx; + uint32 loop_count; + struct rpc_pipe_client *cli; + + DEBUG(3,("rpc: query_user_list\n")); + + *num_entries = 0; + *info = NULL; + + if ( !winbindd_can_contact_domain( domain ) ) { + DEBUG(10,("query_user_list: No incoming trust for domain %s\n", + domain->name)); + return NT_STATUS_OK; + } + + result = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol); + if (!NT_STATUS_IS_OK(result)) + return result; + + i = start_idx = 0; + loop_count = 0; + + do { + uint32 num_dom_users, j; + uint32 max_entries, max_size; + uint32_t total_size, returned_size; + + union samr_DispInfo disp_info; + + /* this next bit is copied from net_user_list_internal() */ + + get_query_dispinfo_params(loop_count, &max_entries, + &max_size); + + result = rpccli_samr_QueryDisplayInfo(cli, mem_ctx, + &dom_pol, + 1, + start_idx, + max_entries, + max_size, + &total_size, + &returned_size, + &disp_info); + num_dom_users = disp_info.info1.count; + start_idx += disp_info.info1.count; + loop_count++; + + *num_entries += num_dom_users; + + *info = TALLOC_REALLOC_ARRAY(mem_ctx, *info, WINBIND_USERINFO, + *num_entries); + + if (!(*info)) { + return NT_STATUS_NO_MEMORY; + } + + for (j = 0; j < num_dom_users; i++, j++) { + + uint32_t rid = disp_info.info1.entries[j].rid; + + (*info)[i].acct_name = talloc_strdup(mem_ctx, + disp_info.info1.entries[j].account_name.string); + (*info)[i].full_name = talloc_strdup(mem_ctx, + disp_info.info1.entries[j].full_name.string); + (*info)[i].homedir = NULL; + (*info)[i].shell = NULL; + sid_compose(&(*info)[i].user_sid, &domain->sid, rid); + + /* For the moment we set the primary group for + every user to be the Domain Users group. + There are serious problems with determining + the actual primary group for large domains. + This should really be made into a 'winbind + force group' smb.conf parameter or + something like that. */ + + sid_compose(&(*info)[i].group_sid, &domain->sid, + DOMAIN_GROUP_RID_USERS); + } + + } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)); + + return result; +} + +/* list all domain groups */ +static NTSTATUS enum_dom_groups(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + uint32 *num_entries, + struct acct_info **info) +{ + POLICY_HND dom_pol; + NTSTATUS status; + uint32 start = 0; + struct rpc_pipe_client *cli; + + *num_entries = 0; + *info = NULL; + + DEBUG(3,("rpc: enum_dom_groups\n")); + + if ( !winbindd_can_contact_domain( domain ) ) { + DEBUG(10,("enum_domain_groups: No incoming trust for domain %s\n", + domain->name)); + return NT_STATUS_OK; + } + + status = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol); + if (!NT_STATUS_IS_OK(status)) + return status; + + do { + struct samr_SamArray *sam_array = NULL; + uint32 count = 0; + TALLOC_CTX *mem_ctx2; + int g; + + mem_ctx2 = talloc_init("enum_dom_groups[rpc]"); + + /* start is updated by this call. */ + status = rpccli_samr_EnumDomainGroups(cli, mem_ctx2, + &dom_pol, + &start, + &sam_array, + 0xFFFF, /* buffer size? */ + &count); + + if (!NT_STATUS_IS_OK(status) && + !NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES)) { + talloc_destroy(mem_ctx2); + break; + } + + (*info) = TALLOC_REALLOC_ARRAY(mem_ctx, *info, + struct acct_info, + (*num_entries) + count); + if (! *info) { + talloc_destroy(mem_ctx2); + return NT_STATUS_NO_MEMORY; + } + + for (g=0; g < count; g++) { + + fstrcpy((*info)[*num_entries + g].acct_name, + sam_array->entries[g].name.string); + (*info)[*num_entries + g].rid = sam_array->entries[g].idx; + } + + (*num_entries) += count; + talloc_destroy(mem_ctx2); + } while (NT_STATUS_EQUAL(status, STATUS_MORE_ENTRIES)); + + return NT_STATUS_OK; +} + +/* List all domain groups */ + +static NTSTATUS enum_local_groups(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + uint32 *num_entries, + struct acct_info **info) +{ + POLICY_HND dom_pol; + NTSTATUS result; + struct rpc_pipe_client *cli; + + *num_entries = 0; + *info = NULL; + + DEBUG(3,("rpc: enum_local_groups\n")); + + if ( !winbindd_can_contact_domain( domain ) ) { + DEBUG(10,("enum_local_groups: No incoming trust for domain %s\n", + domain->name)); + return NT_STATUS_OK; + } + + result = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol); + if (!NT_STATUS_IS_OK(result)) + return result; + + do { + struct samr_SamArray *sam_array = NULL; + uint32 count = 0, start = *num_entries; + TALLOC_CTX *mem_ctx2; + int g; + + mem_ctx2 = talloc_init("enum_dom_local_groups[rpc]"); + + result = rpccli_samr_EnumDomainAliases(cli, mem_ctx2, + &dom_pol, + &start, + &sam_array, + 0xFFFF, /* buffer size? */ + &count); + if (!NT_STATUS_IS_OK(result) && + !NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES) ) + { + talloc_destroy(mem_ctx2); + return result; + } + + (*info) = TALLOC_REALLOC_ARRAY(mem_ctx, *info, + struct acct_info, + (*num_entries) + count); + if (! *info) { + talloc_destroy(mem_ctx2); + return NT_STATUS_NO_MEMORY; + } + + for (g=0; g < count; g++) { + + fstrcpy((*info)[*num_entries + g].acct_name, + sam_array->entries[g].name.string); + (*info)[*num_entries + g].rid = sam_array->entries[g].idx; + } + + (*num_entries) += count; + talloc_destroy(mem_ctx2); + + } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)); + + return NT_STATUS_OK; +} + +/* convert a single name to a sid in a domain */ +NTSTATUS msrpc_name_to_sid(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + enum winbindd_cmd original_cmd, + const char *domain_name, + const char *name, + DOM_SID *sid, + enum lsa_SidType *type) +{ + NTSTATUS result; + DOM_SID *sids = NULL; + enum lsa_SidType *types = NULL; + char *full_name = NULL; + struct rpc_pipe_client *cli; + POLICY_HND lsa_policy; + + if (name == NULL || *name=='\0') { + full_name = talloc_asprintf(mem_ctx, "%s", domain_name); + } else if (domain_name == NULL || *domain_name == '\0') { + full_name = talloc_asprintf(mem_ctx, "%s", name); + } else { + full_name = talloc_asprintf(mem_ctx, "%s\\%s", domain_name, name); + } + if (!full_name) { + DEBUG(0, ("talloc_asprintf failed!\n")); + return NT_STATUS_NO_MEMORY; + } + + DEBUG(3,("rpc: name_to_sid name=%s\n", full_name)); + + ws_name_return( full_name, WB_REPLACE_CHAR ); + + DEBUG(3,("name_to_sid [rpc] %s for domain %s\n", full_name?full_name:"", domain_name )); + + result = cm_connect_lsa(domain, mem_ctx, &cli, &lsa_policy); + if (!NT_STATUS_IS_OK(result)) + return result; + + result = rpccli_lsa_lookup_names(cli, mem_ctx, &lsa_policy, 1, + (const char**) &full_name, NULL, 1, &sids, &types); + + if (!NT_STATUS_IS_OK(result)) + return result; + + /* Return rid and type if lookup successful */ + + sid_copy(sid, &sids[0]); + *type = types[0]; + + return NT_STATUS_OK; +} + +/* + convert a domain SID to a user or group name +*/ +NTSTATUS msrpc_sid_to_name(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + const DOM_SID *sid, + char **domain_name, + char **name, + enum lsa_SidType *type) +{ + char **domains; + char **names; + enum lsa_SidType *types = NULL; + NTSTATUS result; + struct rpc_pipe_client *cli; + POLICY_HND lsa_policy; + + DEBUG(3,("sid_to_name [rpc] %s for domain %s\n", sid_string_dbg(sid), + domain->name )); + + result = cm_connect_lsa(domain, mem_ctx, &cli, &lsa_policy); + if (!NT_STATUS_IS_OK(result)) { + DEBUG(2,("msrpc_sid_to_name: cm_connect_lsa() failed (%s)\n", + nt_errstr(result))); + return result; + } + + + result = rpccli_lsa_lookup_sids(cli, mem_ctx, &lsa_policy, + 1, sid, &domains, &names, &types); + if (!NT_STATUS_IS_OK(result)) { + DEBUG(2,("msrpc_sid_to_name: rpccli_lsa_lookup_sids() failed (%s)\n", + nt_errstr(result))); + return result; + } + + *type = (enum lsa_SidType)types[0]; + *domain_name = domains[0]; + *name = names[0]; + + ws_name_replace( *name, WB_REPLACE_CHAR ); + + DEBUG(5,("Mapped sid to [%s]\\[%s]\n", domains[0], *name)); + return NT_STATUS_OK; +} + +NTSTATUS msrpc_rids_to_names(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + const DOM_SID *sid, + uint32 *rids, + size_t num_rids, + char **domain_name, + char ***names, + enum lsa_SidType **types) +{ + char **domains; + NTSTATUS result; + struct rpc_pipe_client *cli; + POLICY_HND lsa_policy; + DOM_SID *sids; + size_t i; + char **ret_names; + + DEBUG(3, ("rids_to_names [rpc] for domain %s\n", domain->name )); + + if (num_rids) { + sids = TALLOC_ARRAY(mem_ctx, DOM_SID, num_rids); + if (sids == NULL) { + return NT_STATUS_NO_MEMORY; + } + } else { + sids = NULL; + } + + for (i=0; i<num_rids; i++) { + if (!sid_compose(&sids[i], sid, rids[i])) { + return NT_STATUS_INTERNAL_ERROR; + } + } + + result = cm_connect_lsa(domain, mem_ctx, &cli, &lsa_policy); + if (!NT_STATUS_IS_OK(result)) { + return result; + } + + result = rpccli_lsa_lookup_sids(cli, mem_ctx, &lsa_policy, + num_rids, sids, &domains, + names, types); + if (!NT_STATUS_IS_OK(result) && + !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED)) { + return result; + } + + ret_names = *names; + for (i=0; i<num_rids; i++) { + if ((*types)[i] != SID_NAME_UNKNOWN) { + ws_name_replace( ret_names[i], WB_REPLACE_CHAR ); + *domain_name = domains[i]; + } + } + + return result; +} + +/* Lookup user information from a rid or username. */ +static NTSTATUS query_user(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + const DOM_SID *user_sid, + WINBIND_USERINFO *user_info) +{ + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + POLICY_HND dom_pol, user_pol; + union samr_UserInfo *info = NULL; + uint32 user_rid; + struct netr_SamInfo3 *user; + struct rpc_pipe_client *cli; + + DEBUG(3,("rpc: query_user sid=%s\n", sid_string_dbg(user_sid))); + + if (!sid_peek_check_rid(&domain->sid, user_sid, &user_rid)) + return NT_STATUS_UNSUCCESSFUL; + + user_info->homedir = NULL; + user_info->shell = NULL; + user_info->primary_gid = (gid_t)-1; + + /* try netsamlogon cache first */ + + if ( (user = netsamlogon_cache_get( mem_ctx, user_sid )) != NULL ) + { + + DEBUG(5,("query_user: Cache lookup succeeded for %s\n", + sid_string_dbg(user_sid))); + + sid_compose(&user_info->user_sid, &domain->sid, user->base.rid); + sid_compose(&user_info->group_sid, &domain->sid, + user->base.primary_gid); + + user_info->acct_name = talloc_strdup(mem_ctx, + user->base.account_name.string); + user_info->full_name = talloc_strdup(mem_ctx, + user->base.full_name.string); + + TALLOC_FREE(user); + + return NT_STATUS_OK; + } + + if ( !winbindd_can_contact_domain( domain ) ) { + DEBUG(10,("query_user: No incoming trust for domain %s\n", + domain->name)); + return NT_STATUS_OK; + } + + if ( !winbindd_can_contact_domain( domain ) ) { + DEBUG(10,("query_user: No incoming trust for domain %s\n", + domain->name)); + return NT_STATUS_OK; + } + + if ( !winbindd_can_contact_domain( domain ) ) { + DEBUG(10,("query_user: No incoming trust for domain %s\n", + domain->name)); + return NT_STATUS_OK; + } + + /* no cache; hit the wire */ + + result = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol); + if (!NT_STATUS_IS_OK(result)) + return result; + + /* Get user handle */ + result = rpccli_samr_OpenUser(cli, mem_ctx, + &dom_pol, + SEC_RIGHTS_MAXIMUM_ALLOWED, + user_rid, + &user_pol); + + if (!NT_STATUS_IS_OK(result)) + return result; + + /* Get user info */ + result = rpccli_samr_QueryUserInfo(cli, mem_ctx, + &user_pol, + 0x15, + &info); + + rpccli_samr_Close(cli, mem_ctx, &user_pol); + + if (!NT_STATUS_IS_OK(result)) + return result; + + sid_compose(&user_info->user_sid, &domain->sid, user_rid); + sid_compose(&user_info->group_sid, &domain->sid, + info->info21.primary_gid); + user_info->acct_name = talloc_strdup(mem_ctx, + info->info21.account_name.string); + user_info->full_name = talloc_strdup(mem_ctx, + info->info21.full_name.string); + user_info->homedir = NULL; + user_info->shell = NULL; + user_info->primary_gid = (gid_t)-1; + + return NT_STATUS_OK; +} + +/* Lookup groups a user is a member of. I wish Unix had a call like this! */ +static NTSTATUS lookup_usergroups(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + const DOM_SID *user_sid, + uint32 *num_groups, DOM_SID **user_grpsids) +{ + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + POLICY_HND dom_pol, user_pol; + uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED; + struct samr_RidWithAttributeArray *rid_array = NULL; + unsigned int i; + uint32 user_rid; + struct rpc_pipe_client *cli; + + DEBUG(3,("rpc: lookup_usergroups sid=%s\n", sid_string_dbg(user_sid))); + + if (!sid_peek_check_rid(&domain->sid, user_sid, &user_rid)) + return NT_STATUS_UNSUCCESSFUL; + + *num_groups = 0; + *user_grpsids = NULL; + + /* so lets see if we have a cached user_info_3 */ + result = lookup_usergroups_cached(domain, mem_ctx, user_sid, + num_groups, user_grpsids); + + if (NT_STATUS_IS_OK(result)) { + return NT_STATUS_OK; + } + + if ( !winbindd_can_contact_domain( domain ) ) { + DEBUG(10,("lookup_usergroups: No incoming trust for domain %s\n", + domain->name)); + + /* Tell the cache manager not to remember this one */ + + return NT_STATUS_SYNCHRONIZATION_REQUIRED; + } + + /* no cache; hit the wire */ + + result = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol); + if (!NT_STATUS_IS_OK(result)) + return result; + + /* Get user handle */ + result = rpccli_samr_OpenUser(cli, mem_ctx, + &dom_pol, + des_access, + user_rid, + &user_pol); + + if (!NT_STATUS_IS_OK(result)) + return result; + + /* Query user rids */ + result = rpccli_samr_GetGroupsForUser(cli, mem_ctx, + &user_pol, + &rid_array); + *num_groups = rid_array->count; + + rpccli_samr_Close(cli, mem_ctx, &user_pol); + + if (!NT_STATUS_IS_OK(result) || (*num_groups) == 0) + return result; + + (*user_grpsids) = TALLOC_ARRAY(mem_ctx, DOM_SID, *num_groups); + if (!(*user_grpsids)) + return NT_STATUS_NO_MEMORY; + + for (i=0;i<(*num_groups);i++) { + sid_copy(&((*user_grpsids)[i]), &domain->sid); + sid_append_rid(&((*user_grpsids)[i]), + rid_array->rids[i].rid); + } + + return NT_STATUS_OK; +} + +NTSTATUS msrpc_lookup_useraliases(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + uint32 num_sids, const DOM_SID *sids, + uint32 *num_aliases, uint32 **alias_rids) +{ + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + POLICY_HND dom_pol; + uint32 num_query_sids = 0; + int i; + struct rpc_pipe_client *cli; + struct samr_Ids alias_rids_query; + int rangesize = MAX_SAM_ENTRIES_W2K; + uint32 total_sids = 0; + int num_queries = 1; + + *num_aliases = 0; + *alias_rids = NULL; + + DEBUG(3,("rpc: lookup_useraliases\n")); + + if ( !winbindd_can_contact_domain( domain ) ) { + DEBUG(10,("msrpc_lookup_useraliases: No incoming trust for domain %s\n", + domain->name)); + return NT_STATUS_OK; + } + + result = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol); + if (!NT_STATUS_IS_OK(result)) + return result; + + do { + /* prepare query */ + struct lsa_SidArray sid_array; + + ZERO_STRUCT(sid_array); + + num_query_sids = MIN(num_sids - total_sids, rangesize); + + DEBUG(10,("rpc: lookup_useraliases: entering query %d for %d sids\n", + num_queries, num_query_sids)); + + if (num_query_sids) { + sid_array.sids = TALLOC_ZERO_ARRAY(mem_ctx, struct lsa_SidPtr, num_query_sids); + if (sid_array.sids == NULL) { + return NT_STATUS_NO_MEMORY; + } + } else { + sid_array.sids = NULL; + } + + for (i=0; i<num_query_sids; i++) { + sid_array.sids[i].sid = sid_dup_talloc(mem_ctx, &sids[total_sids++]); + if (!sid_array.sids[i].sid) { + TALLOC_FREE(sid_array.sids); + return NT_STATUS_NO_MEMORY; + } + } + sid_array.num_sids = num_query_sids; + + /* do request */ + result = rpccli_samr_GetAliasMembership(cli, mem_ctx, + &dom_pol, + &sid_array, + &alias_rids_query); + + if (!NT_STATUS_IS_OK(result)) { + *num_aliases = 0; + *alias_rids = NULL; + TALLOC_FREE(sid_array.sids); + goto done; + } + + /* process output */ + + for (i=0; i<alias_rids_query.count; i++) { + size_t na = *num_aliases; + if (!add_rid_to_array_unique(mem_ctx, alias_rids_query.ids[i], + alias_rids, &na)) { + return NT_STATUS_NO_MEMORY; + } + *num_aliases = na; + } + + TALLOC_FREE(sid_array.sids); + + num_queries++; + + } while (total_sids < num_sids); + + done: + DEBUG(10,("rpc: lookup_useraliases: got %d aliases in %d queries " + "(rangesize: %d)\n", *num_aliases, num_queries, rangesize)); + + return result; +} + + +/* Lookup group membership given a rid. */ +static NTSTATUS lookup_groupmem(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + const DOM_SID *group_sid, uint32 *num_names, + DOM_SID **sid_mem, char ***names, + uint32 **name_types) +{ + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + uint32 i, total_names = 0; + POLICY_HND dom_pol, group_pol; + uint32 des_access = SEC_RIGHTS_MAXIMUM_ALLOWED; + uint32 *rid_mem = NULL; + uint32 group_rid; + unsigned int j, r; + struct rpc_pipe_client *cli; + unsigned int orig_timeout; + struct samr_RidTypeArray *rids = NULL; + + DEBUG(10,("rpc: lookup_groupmem %s sid=%s\n", domain->name, + sid_string_dbg(group_sid))); + + if ( !winbindd_can_contact_domain( domain ) ) { + DEBUG(10,("lookup_groupmem: No incoming trust for domain %s\n", + domain->name)); + return NT_STATUS_OK; + } + + if (!sid_peek_check_rid(&domain->sid, group_sid, &group_rid)) + return NT_STATUS_UNSUCCESSFUL; + + *num_names = 0; + + result = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol); + if (!NT_STATUS_IS_OK(result)) + return result; + + result = rpccli_samr_OpenGroup(cli, mem_ctx, + &dom_pol, + des_access, + group_rid, + &group_pol); + + if (!NT_STATUS_IS_OK(result)) + return result; + + /* Step #1: Get a list of user rids that are the members of the + group. */ + + /* This call can take a long time - allow the server to time out. + 35 seconds should do it. */ + + orig_timeout = rpccli_set_timeout(cli, 35000); + + result = rpccli_samr_QueryGroupMember(cli, mem_ctx, + &group_pol, + &rids); + + /* And restore our original timeout. */ + rpccli_set_timeout(cli, orig_timeout); + + rpccli_samr_Close(cli, mem_ctx, &group_pol); + + if (!NT_STATUS_IS_OK(result)) + return result; + + *num_names = rids->count; + rid_mem = rids->rids; + + if (!*num_names) { + names = NULL; + name_types = NULL; + sid_mem = NULL; + return NT_STATUS_OK; + } + + /* Step #2: Convert list of rids into list of usernames. Do this + in bunches of ~1000 to avoid crashing NT4. It looks like there + is a buffer overflow or something like that lurking around + somewhere. */ + +#define MAX_LOOKUP_RIDS 900 + + *names = TALLOC_ZERO_ARRAY(mem_ctx, char *, *num_names); + *name_types = TALLOC_ZERO_ARRAY(mem_ctx, uint32, *num_names); + *sid_mem = TALLOC_ZERO_ARRAY(mem_ctx, DOM_SID, *num_names); + + for (j=0;j<(*num_names);j++) + sid_compose(&(*sid_mem)[j], &domain->sid, rid_mem[j]); + + if (*num_names>0 && (!*names || !*name_types)) + return NT_STATUS_NO_MEMORY; + + for (i = 0; i < *num_names; i += MAX_LOOKUP_RIDS) { + int num_lookup_rids = MIN(*num_names - i, MAX_LOOKUP_RIDS); + struct lsa_Strings tmp_names; + struct samr_Ids tmp_types; + + /* Lookup a chunk of rids */ + + result = rpccli_samr_LookupRids(cli, mem_ctx, + &dom_pol, + num_lookup_rids, + &rid_mem[i], + &tmp_names, + &tmp_types); + + /* see if we have a real error (and yes the + STATUS_SOME_UNMAPPED is the one returned from 2k) */ + + if (!NT_STATUS_IS_OK(result) && + !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED)) + return result; + + /* Copy result into array. The talloc system will take + care of freeing the temporary arrays later on. */ + + if (tmp_names.count != tmp_types.count) { + return NT_STATUS_UNSUCCESSFUL; + } + + for (r=0; r<tmp_names.count; r++) { + (*names)[i+r] = CONST_DISCARD(char *, tmp_names.names[r].string); + (*name_types)[i+r] = tmp_types.ids[r]; + } + + total_names += tmp_names.count; + } + + *num_names = total_names; + + return NT_STATUS_OK; +} + +#ifdef HAVE_LDAP + +#include <ldap.h> + +static int get_ldap_seq(const char *server, int port, uint32 *seq) +{ + int ret = -1; + struct timeval to; + const char *attrs[] = {"highestCommittedUSN", NULL}; + LDAPMessage *res = NULL; + char **values = NULL; + LDAP *ldp = NULL; + + *seq = DOM_SEQUENCE_NONE; + + /* + * Parameterised (5) second timeout on open. This is needed as the + * search timeout doesn't seem to apply to doing an open as well. JRA. + */ + + ldp = ldap_open_with_timeout(server, port, lp_ldap_timeout()); + if (ldp == NULL) + return -1; + + /* Timeout if no response within 20 seconds. */ + to.tv_sec = 10; + to.tv_usec = 0; + + if (ldap_search_st(ldp, "", LDAP_SCOPE_BASE, "(objectclass=*)", + CONST_DISCARD(char **, attrs), 0, &to, &res)) + goto done; + + if (ldap_count_entries(ldp, res) != 1) + goto done; + + values = ldap_get_values(ldp, res, "highestCommittedUSN"); + if (!values || !values[0]) + goto done; + + *seq = atoi(values[0]); + ret = 0; + + done: + + if (values) + ldap_value_free(values); + if (res) + ldap_msgfree(res); + if (ldp) + ldap_unbind(ldp); + return ret; +} + +/********************************************************************** + Get the sequence number for a Windows AD native mode domain using + LDAP queries. +**********************************************************************/ + +static int get_ldap_sequence_number(struct winbindd_domain *domain, uint32 *seq) +{ + int ret = -1; + char addr[INET6_ADDRSTRLEN]; + + print_sockaddr(addr, sizeof(addr), &domain->dcaddr); + if ((ret = get_ldap_seq(addr, LDAP_PORT, seq)) == 0) { + DEBUG(3, ("get_ldap_sequence_number: Retrieved sequence " + "number for Domain (%s) from DC (%s)\n", + domain->name, addr)); + } + return ret; +} + +#endif /* HAVE_LDAP */ + +/* find the sequence number for a domain */ +static NTSTATUS sequence_number(struct winbindd_domain *domain, uint32 *seq) +{ + TALLOC_CTX *mem_ctx; + union samr_DomainInfo *info = NULL; + NTSTATUS result; + POLICY_HND dom_pol; + bool got_seq_num = False; + struct rpc_pipe_client *cli; + + DEBUG(10,("rpc: fetch sequence_number for %s\n", domain->name)); + + if ( !winbindd_can_contact_domain( domain ) ) { + DEBUG(10,("sequence_number: No incoming trust for domain %s\n", + domain->name)); + *seq = time(NULL); + return NT_STATUS_OK; + } + + *seq = DOM_SEQUENCE_NONE; + + if (!(mem_ctx = talloc_init("sequence_number[rpc]"))) + return NT_STATUS_NO_MEMORY; + +#ifdef HAVE_LDAP + if ( domain->active_directory ) + { + int res; + + DEBUG(8,("using get_ldap_seq() to retrieve the " + "sequence number\n")); + + res = get_ldap_sequence_number( domain, seq ); + if (res == 0) + { + result = NT_STATUS_OK; + DEBUG(10,("domain_sequence_number: LDAP for " + "domain %s is %u\n", + domain->name, *seq)); + goto done; + } + + DEBUG(10,("domain_sequence_number: failed to get LDAP " + "sequence number for domain %s\n", + domain->name )); + } +#endif /* HAVE_LDAP */ + + result = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol); + if (!NT_STATUS_IS_OK(result)) { + goto done; + } + + /* Query domain info */ + + result = rpccli_samr_QueryDomainInfo(cli, mem_ctx, + &dom_pol, + 8, + &info); + + if (NT_STATUS_IS_OK(result)) { + *seq = info->info8.sequence_num; + got_seq_num = True; + goto seq_num; + } + + /* retry with info-level 2 in case the dc does not support info-level 8 + * (like all older samba2 and samba3 dc's) - Guenther */ + + result = rpccli_samr_QueryDomainInfo(cli, mem_ctx, + &dom_pol, + 2, + &info); + + if (NT_STATUS_IS_OK(result)) { + *seq = info->info2.sequence_num; + got_seq_num = True; + } + + seq_num: + if (got_seq_num) { + DEBUG(10,("domain_sequence_number: for domain %s is %u\n", + domain->name, (unsigned)*seq)); + } else { + DEBUG(10,("domain_sequence_number: failed to get sequence " + "number (%u) for domain %s\n", + (unsigned)*seq, domain->name )); + } + + done: + + talloc_destroy(mem_ctx); + + return result; +} + +/* get a list of trusted domains */ +static NTSTATUS trusted_domains(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + uint32 *num_domains, + char ***names, + char ***alt_names, + DOM_SID **dom_sids) +{ + NTSTATUS result = NT_STATUS_UNSUCCESSFUL; + uint32 enum_ctx = 0; + struct rpc_pipe_client *cli; + POLICY_HND lsa_policy; + + DEBUG(3,("rpc: trusted_domains\n")); + + *num_domains = 0; + *names = NULL; + *alt_names = NULL; + *dom_sids = NULL; + + result = cm_connect_lsa(domain, mem_ctx, &cli, &lsa_policy); + if (!NT_STATUS_IS_OK(result)) + return result; + + result = STATUS_MORE_ENTRIES; + + while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) { + uint32 start_idx; + int i; + struct lsa_DomainList dom_list; + + result = rpccli_lsa_EnumTrustDom(cli, mem_ctx, + &lsa_policy, + &enum_ctx, + &dom_list, + (uint32_t)-1); + + if (!NT_STATUS_IS_OK(result) && + !NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) + break; + + start_idx = *num_domains; + *num_domains += dom_list.count; + *names = TALLOC_REALLOC_ARRAY(mem_ctx, *names, + char *, *num_domains); + *dom_sids = TALLOC_REALLOC_ARRAY(mem_ctx, *dom_sids, + DOM_SID, *num_domains); + *alt_names = TALLOC_REALLOC_ARRAY(mem_ctx, *alt_names, + char *, *num_domains); + if ((*names == NULL) || (*dom_sids == NULL) || + (*alt_names == NULL)) + return NT_STATUS_NO_MEMORY; + + for (i=0; i<dom_list.count; i++) { + (*names)[start_idx+i] = CONST_DISCARD(char *, dom_list.domains[i].name.string); + (*dom_sids)[start_idx+i] = *dom_list.domains[i].sid; + (*alt_names)[start_idx+i] = talloc_strdup(mem_ctx, ""); + } + } + return result; +} + +/* find the lockout policy for a domain */ +NTSTATUS msrpc_lockout_policy(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + struct samr_DomInfo12 *lockout_policy) +{ + NTSTATUS result; + struct rpc_pipe_client *cli; + POLICY_HND dom_pol; + union samr_DomainInfo *info = NULL; + + DEBUG(10,("rpc: fetch lockout policy for %s\n", domain->name)); + + if ( !winbindd_can_contact_domain( domain ) ) { + DEBUG(10,("msrpc_lockout_policy: No incoming trust for domain %s\n", + domain->name)); + return NT_STATUS_NOT_SUPPORTED; + } + + result = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol); + if (!NT_STATUS_IS_OK(result)) { + goto done; + } + + result = rpccli_samr_QueryDomainInfo(cli, mem_ctx, + &dom_pol, + 12, + &info); + if (!NT_STATUS_IS_OK(result)) { + goto done; + } + + *lockout_policy = info->info12; + + DEBUG(10,("msrpc_lockout_policy: lockout_threshold %d\n", + info->info12.lockout_threshold)); + + done: + + return result; +} + +/* find the password policy for a domain */ +NTSTATUS msrpc_password_policy(struct winbindd_domain *domain, + TALLOC_CTX *mem_ctx, + struct samr_DomInfo1 *password_policy) +{ + NTSTATUS result; + struct rpc_pipe_client *cli; + POLICY_HND dom_pol; + union samr_DomainInfo *info = NULL; + + DEBUG(10,("rpc: fetch password policy for %s\n", domain->name)); + + if ( !winbindd_can_contact_domain( domain ) ) { + DEBUG(10,("msrpc_password_policy: No incoming trust for domain %s\n", + domain->name)); + return NT_STATUS_NOT_SUPPORTED; + } + + result = cm_connect_sam(domain, mem_ctx, &cli, &dom_pol); + if (!NT_STATUS_IS_OK(result)) { + goto done; + } + + result = rpccli_samr_QueryDomainInfo(cli, mem_ctx, + &dom_pol, + 1, + &info); + if (!NT_STATUS_IS_OK(result)) { + goto done; + } + + *password_policy = info->info1; + + DEBUG(10,("msrpc_password_policy: min_length_password %d\n", + info->info1.min_password_length)); + + done: + + return result; +} + + +/* the rpc backend methods are exposed via this structure */ +struct winbindd_methods msrpc_methods = { + False, + query_user_list, + enum_dom_groups, + enum_local_groups, + msrpc_name_to_sid, + msrpc_sid_to_name, + msrpc_rids_to_names, + query_user, + lookup_usergroups, + msrpc_lookup_useraliases, + lookup_groupmem, + sequence_number, + msrpc_lockout_policy, + msrpc_password_policy, + trusted_domains, +}; 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