/* Unix SMB/CIFS implementation. RPC pipe client Copyright (C) Tim Potter 2000-2001, Copyright (C) Andrew Tridgell 1992-1997,2000, Copyright (C) Rafal Szczesniak 2002 Copyright (C) Jeremy Allison 2005. Copyright (C) Michael Adam 2007. Copyright (C) Guenther Deschner 2008. 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 "../librpc/gen_ndr/cli_lsa.h" #include "rpc_client/cli_lsarpc.h" #include "rpc_client/init_lsa.h" #include "../libcli/security/security.h" /** @defgroup lsa LSA - Local Security Architecture * @ingroup rpc_client * * @{ **/ /** * @file cli_lsarpc.c * * RPC client routines for the LSA RPC pipe. LSA means "local * security authority", which is half of a password database. **/ /** Open a LSA policy handle * * @param cli Handle on an initialised SMB connection */ NTSTATUS rpccli_lsa_open_policy(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, bool sec_qos, uint32 des_access, struct policy_handle *pol) { struct lsa_ObjectAttribute attr; struct lsa_QosInfo qos; uint16_t system_name = '\\'; ZERO_STRUCT(attr); attr.len = 0x18; if (sec_qos) { qos.len = 0xc; qos.impersonation_level = 2; qos.context_mode = 1; qos.effective_only = 0; attr.sec_qos = &qos; } return rpccli_lsa_OpenPolicy(cli, mem_ctx, &system_name, &attr, des_access, pol); } /** Open a LSA policy handle * * @param cli Handle on an initialised SMB connection */ NTSTATUS rpccli_lsa_open_policy2(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, bool sec_qos, uint32 des_access, struct policy_handle *pol) { struct lsa_ObjectAttribute attr; struct lsa_QosInfo qos; ZERO_STRUCT(attr); attr.len = 0x18; if (sec_qos) { qos.len = 0xc; qos.impersonation_level = 2; qos.context_mode = 1; qos.effective_only = 0; attr.sec_qos = &qos; } return rpccli_lsa_OpenPolicy2(cli, mem_ctx, cli->srv_name_slash, &attr, des_access, pol); } /* Lookup a list of sids * * internal version withOUT memory allocation of the target arrays. * this assumes suffciently sized arrays to store domains, names and types. */ static NTSTATUS rpccli_lsa_lookup_sids_noalloc(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, struct policy_handle *pol, int num_sids, const struct dom_sid *sids, char **domains, char **names, enum lsa_SidType *types, bool use_lookupsids3) { NTSTATUS result = NT_STATUS_OK; TALLOC_CTX *tmp_ctx = NULL; int i; struct lsa_SidArray sid_array; struct lsa_RefDomainList *ref_domains = NULL; struct lsa_TransNameArray lsa_names; uint32_t count = 0; uint16_t level = 1; ZERO_STRUCT(lsa_names); tmp_ctx = talloc_new(mem_ctx); if (!tmp_ctx) { DEBUG(0, ("rpccli_lsa_lookup_sids_noalloc: out of memory!\n")); result = NT_STATUS_UNSUCCESSFUL; goto done; } sid_array.num_sids = num_sids; sid_array.sids = TALLOC_ARRAY(mem_ctx, struct lsa_SidPtr, num_sids); if (!sid_array.sids) { return NT_STATUS_NO_MEMORY; } for (i = 0; i<num_sids; i++) { sid_array.sids[i].sid = dom_sid_dup(mem_ctx, &sids[i]); if (!sid_array.sids[i].sid) { return NT_STATUS_NO_MEMORY; } } if (use_lookupsids3) { struct lsa_TransNameArray2 lsa_names2; uint32_t n; ZERO_STRUCT(lsa_names2); result = rpccli_lsa_LookupSids3(cli, mem_ctx, &sid_array, &ref_domains, &lsa_names2, level, &count, 0, 0); if (!NT_STATUS_IS_ERR(result)) { lsa_names.count = lsa_names2.count; lsa_names.names = talloc_array(mem_ctx, struct lsa_TranslatedName, lsa_names.count); if (!lsa_names.names) { return NT_STATUS_NO_MEMORY; } for (n=0; n < lsa_names.count; n++) { lsa_names.names[n].sid_type = lsa_names2.names[n].sid_type; lsa_names.names[n].name = lsa_names2.names[n].name; lsa_names.names[n].sid_index = lsa_names2.names[n].sid_index; } } } else { result = rpccli_lsa_LookupSids(cli, mem_ctx, pol, &sid_array, &ref_domains, &lsa_names, level, &count); } DEBUG(10, ("LSA_LOOKUPSIDS returned '%s', mapped count = %d'\n", nt_errstr(result), count)); if (!NT_STATUS_IS_OK(result) && !NT_STATUS_EQUAL(result, NT_STATUS_NONE_MAPPED) && !NT_STATUS_EQUAL(result, STATUS_SOME_UNMAPPED)) { /* An actual error occured */ goto done; } /* Return output parameters */ if (NT_STATUS_EQUAL(result, NT_STATUS_NONE_MAPPED) || (count == 0)) { for (i = 0; i < num_sids; i++) { (names)[i] = NULL; (domains)[i] = NULL; (types)[i] = SID_NAME_UNKNOWN; } result = NT_STATUS_NONE_MAPPED; goto done; } for (i = 0; i < num_sids; i++) { const char *name, *dom_name; uint32_t dom_idx = lsa_names.names[i].sid_index; /* Translate optimised name through domain index array */ if (dom_idx != 0xffffffff) { dom_name = ref_domains->domains[dom_idx].name.string; name = lsa_names.names[i].name.string; if (name) { (names)[i] = talloc_strdup(names, name); if ((names)[i] == NULL) { DEBUG(0, ("cli_lsa_lookup_sids_noalloc(): out of memory\n")); result = NT_STATUS_UNSUCCESSFUL; goto done; } } else { (names)[i] = NULL; } domains[i] = talloc_strdup(domains, dom_name ? dom_name : ""); (types)[i] = lsa_names.names[i].sid_type; if (((domains)[i] == NULL)) { DEBUG(0, ("cli_lsa_lookup_sids_noalloc(): out of memory\n")); result = NT_STATUS_UNSUCCESSFUL; goto done; } } else { (names)[i] = NULL; (domains)[i] = NULL; (types)[i] = SID_NAME_UNKNOWN; } } done: TALLOC_FREE(tmp_ctx); return result; } /* Lookup a list of sids * * do it the right way: there is a limit (of 20480 for w2k3) entries * returned by this call. when the sids list contains more entries, * empty lists are returned. This version of lsa_lookup_sids passes * the list of sids in hunks of LOOKUP_SIDS_HUNK_SIZE to the lsa call. */ /* This constant defines the limit of how many sids to look up * in one call (maximum). the limit from the server side is * at 20480 for win2k3, but we keep it at a save 1000 for now. */ #define LOOKUP_SIDS_HUNK_SIZE 1000 static NTSTATUS rpccli_lsa_lookup_sids_generic(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, struct policy_handle *pol, int num_sids, const struct dom_sid *sids, char ***pdomains, char ***pnames, enum lsa_SidType **ptypes, bool use_lookupsids3) { NTSTATUS result = NT_STATUS_OK; int sids_left = 0; int sids_processed = 0; const struct dom_sid *hunk_sids = sids; char **hunk_domains; char **hunk_names; enum lsa_SidType *hunk_types; char **domains = NULL; char **names = NULL; enum lsa_SidType *types = NULL; if (num_sids) { if (!(domains = TALLOC_ARRAY(mem_ctx, char *, num_sids))) { DEBUG(0, ("rpccli_lsa_lookup_sids(): out of memory\n")); result = NT_STATUS_NO_MEMORY; goto fail; } if (!(names = TALLOC_ARRAY(mem_ctx, char *, num_sids))) { DEBUG(0, ("rpccli_lsa_lookup_sids(): out of memory\n")); result = NT_STATUS_NO_MEMORY; goto fail; } if (!(types = TALLOC_ARRAY(mem_ctx, enum lsa_SidType, num_sids))) { DEBUG(0, ("rpccli_lsa_lookup_sids(): out of memory\n")); result = NT_STATUS_NO_MEMORY; goto fail; } } sids_left = num_sids; hunk_domains = domains; hunk_names = names; hunk_types = types; while (sids_left > 0) { int hunk_num_sids; NTSTATUS hunk_result = NT_STATUS_OK; hunk_num_sids = ((sids_left > LOOKUP_SIDS_HUNK_SIZE) ? LOOKUP_SIDS_HUNK_SIZE : sids_left); DEBUG(10, ("rpccli_lsa_lookup_sids: processing items " "%d -- %d of %d.\n", sids_processed, sids_processed + hunk_num_sids - 1, num_sids)); hunk_result = rpccli_lsa_lookup_sids_noalloc(cli, mem_ctx, pol, hunk_num_sids, hunk_sids, hunk_domains, hunk_names, hunk_types, use_lookupsids3); if (!NT_STATUS_IS_OK(hunk_result) && !NT_STATUS_EQUAL(hunk_result, STATUS_SOME_UNMAPPED) && !NT_STATUS_EQUAL(hunk_result, NT_STATUS_NONE_MAPPED)) { /* An actual error occured */ result = hunk_result; goto fail; } /* adapt overall result */ if (( NT_STATUS_IS_OK(result) && !NT_STATUS_IS_OK(hunk_result)) || ( NT_STATUS_EQUAL(result, NT_STATUS_NONE_MAPPED) && !NT_STATUS_EQUAL(hunk_result, NT_STATUS_NONE_MAPPED))) { result = STATUS_SOME_UNMAPPED; } sids_left -= hunk_num_sids; sids_processed += hunk_num_sids; /* only used in DEBUG */ hunk_sids += hunk_num_sids; hunk_domains += hunk_num_sids; hunk_names += hunk_num_sids; hunk_types += hunk_num_sids; } *pdomains = domains; *pnames = names; *ptypes = types; return result; fail: TALLOC_FREE(domains); TALLOC_FREE(names); TALLOC_FREE(types); return result; } NTSTATUS rpccli_lsa_lookup_sids(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, struct policy_handle *pol, int num_sids, const struct dom_sid *sids, char ***pdomains, char ***pnames, enum lsa_SidType **ptypes) { return rpccli_lsa_lookup_sids_generic(cli, mem_ctx, pol, num_sids, sids, pdomains, pnames, ptypes, false); } NTSTATUS rpccli_lsa_lookup_sids3(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, struct policy_handle *pol, int num_sids, const struct dom_sid *sids, char ***pdomains, char ***pnames, enum lsa_SidType **ptypes) { return rpccli_lsa_lookup_sids_generic(cli, mem_ctx, pol, num_sids, sids, pdomains, pnames, ptypes, true); } /** Lookup a list of names */ static NTSTATUS rpccli_lsa_lookup_names_generic(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, struct policy_handle *pol, int num_names, const char **names, const char ***dom_names, int level, struct dom_sid **sids, enum lsa_SidType **types, bool use_lookupnames4) { NTSTATUS result; int i; struct lsa_String *lsa_names = NULL; struct lsa_RefDomainList *domains = NULL; struct lsa_TransSidArray sid_array; struct lsa_TransSidArray3 sid_array3; uint32_t count = 0; ZERO_STRUCT(sid_array); ZERO_STRUCT(sid_array3); lsa_names = TALLOC_ARRAY(mem_ctx, struct lsa_String, num_names); if (!lsa_names) { return NT_STATUS_NO_MEMORY; } for (i=0; i<num_names; i++) { init_lsa_String(&lsa_names[i], names[i]); } if (use_lookupnames4) { result = rpccli_lsa_LookupNames4(cli, mem_ctx, num_names, lsa_names, &domains, &sid_array3, level, &count, 0, 0); } else { result = rpccli_lsa_LookupNames(cli, mem_ctx, pol, num_names, lsa_names, &domains, &sid_array, level, &count); } if (!NT_STATUS_IS_OK(result) && NT_STATUS_V(result) != NT_STATUS_V(STATUS_SOME_UNMAPPED)) { /* An actual error occured */ goto done; } /* Return output parameters */ if (count == 0) { result = NT_STATUS_NONE_MAPPED; goto done; } if (num_names) { if (!((*sids = TALLOC_ARRAY(mem_ctx, struct dom_sid, num_names)))) { DEBUG(0, ("cli_lsa_lookup_sids(): out of memory\n")); result = NT_STATUS_NO_MEMORY; goto done; } if (!((*types = TALLOC_ARRAY(mem_ctx, enum lsa_SidType, num_names)))) { DEBUG(0, ("cli_lsa_lookup_sids(): out of memory\n")); result = NT_STATUS_NO_MEMORY; goto done; } if (dom_names != NULL) { *dom_names = TALLOC_ARRAY(mem_ctx, const char *, num_names); if (*dom_names == NULL) { DEBUG(0, ("cli_lsa_lookup_sids(): out of memory\n")); result = NT_STATUS_NO_MEMORY; goto done; } } } else { *sids = NULL; *types = NULL; if (dom_names != NULL) { *dom_names = NULL; } } for (i = 0; i < num_names; i++) { uint32_t dom_idx; struct dom_sid *sid = &(*sids)[i]; if (use_lookupnames4) { dom_idx = sid_array3.sids[i].sid_index; (*types)[i] = sid_array3.sids[i].sid_type; } else { dom_idx = sid_array.sids[i].sid_index; (*types)[i] = sid_array.sids[i].sid_type; } /* Translate optimised sid through domain index array */ if (dom_idx == 0xffffffff) { /* Nothing to do, this is unknown */ ZERO_STRUCTP(sid); (*types)[i] = SID_NAME_UNKNOWN; continue; } if (use_lookupnames4) { sid_copy(sid, sid_array3.sids[i].sid); } else { sid_copy(sid, domains->domains[dom_idx].sid); if (sid_array.sids[i].rid != 0xffffffff) { sid_append_rid(sid, sid_array.sids[i].rid); } } if (dom_names == NULL) { continue; } (*dom_names)[i] = domains->domains[dom_idx].name.string; } done: return result; } NTSTATUS rpccli_lsa_lookup_names(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, struct policy_handle *pol, int num_names, const char **names, const char ***dom_names, int level, struct dom_sid **sids, enum lsa_SidType **types) { return rpccli_lsa_lookup_names_generic(cli, mem_ctx, pol, num_names, names, dom_names, level, sids, types, false); } NTSTATUS rpccli_lsa_lookup_names4(struct rpc_pipe_client *cli, TALLOC_CTX *mem_ctx, struct policy_handle *pol, int num_names, const char **names, const char ***dom_names, int level, struct dom_sid **sids, enum lsa_SidType **types) { return rpccli_lsa_lookup_names_generic(cli, mem_ctx, pol, num_names, names, dom_names, level, sids, types, true); }