/* * Unix SMB/CIFS implementation. * RPC Pipe client / server routines * Copyright (C) Andrew Tridgell 1992-1997, * Copyright (C) Luke Kenneth Casson Leighton 1996-1997, * Copyright (C) Paul Ashton 1997. * Copyright (C) Jeremy Allison 1998-2001. * Copyright (C) Andrew Bartlett 2001. * Copyright (C) Guenther Deschner 2008-2009. * * 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 . */ /* This is the implementation of the netlogon pipe. */ #include "includes.h" #include "system/passwd.h" /* uid_wrapper */ #include "ntdomain.h" #include "../libcli/auth/schannel.h" #include "../librpc/gen_ndr/srv_netlogon.h" #include "../librpc/gen_ndr/ndr_samr_c.h" #include "../librpc/gen_ndr/ndr_lsa_c.h" #include "rpc_client/cli_lsarpc.h" #include "rpc_client/init_lsa.h" #include "rpc_server/rpc_ncacn_np.h" #include "../libcli/security/security.h" #include "../libcli/security/dom_sid.h" #include "librpc/gen_ndr/ndr_drsblobs.h" #include "lib/crypto/arcfour.h" #include "lib/crypto/md4.h" #include "nsswitch/libwbclient/wbclient.h" #include "../libcli/registry/util_reg.h" #include "passdb.h" #include "auth.h" #include "messages.h" #include "../lib/tsocket/tsocket.h" #include "lib/param/param.h" extern userdom_struct current_user_info; #undef DBGC_CLASS #define DBGC_CLASS DBGC_RPC_SRV struct netlogon_server_pipe_state { struct netr_Credential client_challenge; struct netr_Credential server_challenge; }; /************************************************************************* _netr_LogonControl *************************************************************************/ WERROR _netr_LogonControl(struct pipes_struct *p, struct netr_LogonControl *r) { struct netr_LogonControl2Ex l; switch (r->in.level) { case 1: break; case 2: return WERR_NOT_SUPPORTED; default: return WERR_UNKNOWN_LEVEL; } l.in.logon_server = r->in.logon_server; l.in.function_code = r->in.function_code; l.in.level = r->in.level; l.in.data = NULL; l.out.query = r->out.query; return _netr_LogonControl2Ex(p, &l); } /************************************************************************* _netr_LogonControl2 *************************************************************************/ WERROR _netr_LogonControl2(struct pipes_struct *p, struct netr_LogonControl2 *r) { struct netr_LogonControl2Ex l; l.in.logon_server = r->in.logon_server; l.in.function_code = r->in.function_code; l.in.level = r->in.level; l.in.data = r->in.data; l.out.query = r->out.query; return _netr_LogonControl2Ex(p, &l); } /************************************************************************* *************************************************************************/ static bool wb_change_trust_creds(const char *domain, WERROR *tc_status) { wbcErr result; struct wbcAuthErrorInfo *error = NULL; result = wbcChangeTrustCredentials(domain, &error); switch (result) { case WBC_ERR_WINBIND_NOT_AVAILABLE: return false; case WBC_ERR_DOMAIN_NOT_FOUND: *tc_status = WERR_NO_SUCH_DOMAIN; return true; case WBC_ERR_SUCCESS: *tc_status = WERR_OK; return true; default: break; } if (error && error->nt_status != 0) { *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status)); } else { *tc_status = WERR_TRUST_FAILURE; } wbcFreeMemory(error); return true; } /************************************************************************* *************************************************************************/ static bool wb_check_trust_creds(const char *domain, WERROR *tc_status) { wbcErr result; struct wbcAuthErrorInfo *error = NULL; result = wbcCheckTrustCredentials(domain, &error); switch (result) { case WBC_ERR_WINBIND_NOT_AVAILABLE: return false; case WBC_ERR_DOMAIN_NOT_FOUND: *tc_status = WERR_NO_SUCH_DOMAIN; return true; case WBC_ERR_SUCCESS: *tc_status = WERR_OK; return true; default: break; } if (error && error->nt_status != 0) { *tc_status = ntstatus_to_werror(NT_STATUS(error->nt_status)); } else { *tc_status = WERR_TRUST_FAILURE; } wbcFreeMemory(error); return true; } /**************************************************************** _netr_LogonControl2Ex ****************************************************************/ WERROR _netr_LogonControl2Ex(struct pipes_struct *p, struct netr_LogonControl2Ex *r) { uint32_t flags = 0x0; WERROR pdc_connection_status = WERR_OK; uint32_t logon_attempts = 0x0; WERROR tc_status; fstring dc_name2; const char *dc_name = NULL; struct sockaddr_storage dc_ss; const char *domain = NULL; struct netr_NETLOGON_INFO_1 *info1; struct netr_NETLOGON_INFO_2 *info2; struct netr_NETLOGON_INFO_3 *info3; struct netr_NETLOGON_INFO_4 *info4; const char *fn; uint32_t acct_ctrl; NTSTATUS status; struct netr_DsRGetDCNameInfo *dc_info; switch (p->opnum) { case NDR_NETR_LOGONCONTROL: fn = "_netr_LogonControl"; break; case NDR_NETR_LOGONCONTROL2: fn = "_netr_LogonControl2"; break; case NDR_NETR_LOGONCONTROL2EX: fn = "_netr_LogonControl2Ex"; break; default: return WERR_INVALID_PARAM; } acct_ctrl = p->session_info->info->acct_flags; switch (r->in.function_code) { case NETLOGON_CONTROL_TC_VERIFY: case NETLOGON_CONTROL_CHANGE_PASSWORD: case NETLOGON_CONTROL_REDISCOVER: if ((geteuid() != sec_initial_uid()) && !nt_token_check_domain_rid(p->session_info->security_token, DOMAIN_RID_ADMINS) && !nt_token_check_sid(&global_sid_Builtin_Administrators, p->session_info->security_token) && !(acct_ctrl & (ACB_WSTRUST | ACB_SVRTRUST))) { return WERR_ACCESS_DENIED; } break; default: break; } tc_status = WERR_NO_SUCH_DOMAIN; switch (r->in.function_code) { case NETLOGON_CONTROL_QUERY: tc_status = WERR_OK; break; case NETLOGON_CONTROL_REPLICATE: case NETLOGON_CONTROL_SYNCHRONIZE: case NETLOGON_CONTROL_PDC_REPLICATE: case NETLOGON_CONTROL_BACKUP_CHANGE_LOG: case NETLOGON_CONTROL_BREAKPOINT: if (acct_ctrl & ACB_NORMAL) { return WERR_NOT_SUPPORTED; } else if (acct_ctrl & (ACB_WSTRUST | ACB_SVRTRUST)) { return WERR_ACCESS_DENIED; } else { return WERR_ACCESS_DENIED; } case NETLOGON_CONTROL_TRUNCATE_LOG: if (acct_ctrl & ACB_NORMAL) { break; } else if (acct_ctrl & (ACB_WSTRUST | ACB_SVRTRUST)) { return WERR_ACCESS_DENIED; } else { return WERR_ACCESS_DENIED; } case NETLOGON_CONTROL_TRANSPORT_NOTIFY: case NETLOGON_CONTROL_FORCE_DNS_REG: case NETLOGON_CONTROL_QUERY_DNS_REG: return WERR_NOT_SUPPORTED; case NETLOGON_CONTROL_FIND_USER: if (!r->in.data || !r->in.data->user) { return WERR_NOT_SUPPORTED; } break; case NETLOGON_CONTROL_SET_DBFLAG: if (!r->in.data) { return WERR_NOT_SUPPORTED; } break; case NETLOGON_CONTROL_TC_VERIFY: if (!r->in.data || !r->in.data->domain) { return WERR_NOT_SUPPORTED; } if (!wb_check_trust_creds(r->in.data->domain, &tc_status)) { return WERR_NOT_SUPPORTED; } break; case NETLOGON_CONTROL_TC_QUERY: if (!r->in.data || !r->in.data->domain) { return WERR_NOT_SUPPORTED; } domain = r->in.data->domain; if (!is_trusted_domain(domain)) { break; } if (!get_dc_name(domain, NULL, dc_name2, &dc_ss)) { tc_status = WERR_NO_LOGON_SERVERS; break; } dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_name2); if (!dc_name) { return WERR_NOMEM; } tc_status = WERR_OK; break; case NETLOGON_CONTROL_REDISCOVER: if (!r->in.data || !r->in.data->domain) { return WERR_NOT_SUPPORTED; } domain = r->in.data->domain; if (!is_trusted_domain(domain)) { break; } status = dsgetdcname(p->mem_ctx, p->msg_ctx, domain, NULL, NULL, DS_FORCE_REDISCOVERY | DS_RETURN_FLAT_NAME, &dc_info); if (!NT_STATUS_IS_OK(status)) { tc_status = WERR_NO_LOGON_SERVERS; break; } dc_name = talloc_asprintf(p->mem_ctx, "\\\\%s", dc_info->dc_unc); if (!dc_name) { return WERR_NOMEM; } tc_status = WERR_OK; break; case NETLOGON_CONTROL_CHANGE_PASSWORD: if (!r->in.data || !r->in.data->domain) { return WERR_NOT_SUPPORTED; } if (!wb_change_trust_creds(r->in.data->domain, &tc_status)) { return WERR_NOT_SUPPORTED; } break; default: /* no idea what this should be */ DEBUG(0,("%s: unimplemented function level [%d]\n", fn, r->in.function_code)); return WERR_UNKNOWN_LEVEL; } /* prepare the response */ switch (r->in.level) { case 1: info1 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_1); W_ERROR_HAVE_NO_MEMORY(info1); info1->flags = flags; info1->pdc_connection_status = pdc_connection_status; r->out.query->info1 = info1; break; case 2: info2 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_2); W_ERROR_HAVE_NO_MEMORY(info2); info2->flags = flags; info2->pdc_connection_status = pdc_connection_status; info2->trusted_dc_name = dc_name; info2->tc_connection_status = tc_status; r->out.query->info2 = info2; break; case 3: info3 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_3); W_ERROR_HAVE_NO_MEMORY(info3); info3->flags = flags; info3->logon_attempts = logon_attempts; r->out.query->info3 = info3; break; case 4: info4 = talloc_zero(p->mem_ctx, struct netr_NETLOGON_INFO_4); W_ERROR_HAVE_NO_MEMORY(info4); info4->trusted_dc_name = dc_name; info4->trusted_domain_name = r->in.data->domain; r->out.query->info4 = info4; break; default: return WERR_UNKNOWN_LEVEL; } return WERR_OK; } /************************************************************************* _netr_NetrEnumerateTrustedDomains *************************************************************************/ NTSTATUS _netr_NetrEnumerateTrustedDomains(struct pipes_struct *p, struct netr_NetrEnumerateTrustedDomains *r) { NTSTATUS status; NTSTATUS result = NT_STATUS_OK; DATA_BLOB blob; int num_domains = 0; const char **trusted_domains = NULL; struct lsa_DomainList domain_list; struct dcerpc_binding_handle *h = NULL; struct policy_handle pol; uint32_t enum_ctx = 0; int i; uint32_t max_size = (uint32_t)-1; DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__)); status = rpcint_binding_handle(p->mem_ctx, &ndr_table_lsarpc, p->remote_address, p->session_info, p->msg_ctx, &h); if (!NT_STATUS_IS_OK(status)) { return status; } status = dcerpc_lsa_open_policy2(h, p->mem_ctx, NULL, true, LSA_POLICY_VIEW_LOCAL_INFORMATION, &pol, &result); if (!NT_STATUS_IS_OK(status)) { goto out; } if (!NT_STATUS_IS_OK(result)) { status = result; goto out; } do { /* Lookup list of trusted domains */ status = dcerpc_lsa_EnumTrustDom(h, p->mem_ctx, &pol, &enum_ctx, &domain_list, max_size, &result); if (!NT_STATUS_IS_OK(status)) { goto out; } if (!NT_STATUS_IS_OK(result) && !NT_STATUS_EQUAL(result, NT_STATUS_NO_MORE_ENTRIES) && !NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)) { status = result; goto out; } for (i = 0; i < domain_list.count; i++) { if (!add_string_to_array(p->mem_ctx, domain_list.domains[i].name.string, &trusted_domains, &num_domains)) { status = NT_STATUS_NO_MEMORY; goto out; } } } while (NT_STATUS_EQUAL(result, STATUS_MORE_ENTRIES)); if (num_domains > 0) { /* multi sz terminate */ trusted_domains = talloc_realloc(p->mem_ctx, trusted_domains, const char *, num_domains + 1); if (trusted_domains == NULL) { status = NT_STATUS_NO_MEMORY; goto out; } trusted_domains[num_domains] = NULL; } if (!push_reg_multi_sz(trusted_domains, &blob, trusted_domains)) { TALLOC_FREE(trusted_domains); status = NT_STATUS_NO_MEMORY; goto out; } r->out.trusted_domains_blob->data = blob.data; r->out.trusted_domains_blob->length = blob.length; DEBUG(6,("_netr_NetrEnumerateTrustedDomains: %d\n", __LINE__)); status = NT_STATUS_OK; out: if (is_valid_policy_hnd(&pol)) { dcerpc_lsa_Close(h, p->mem_ctx, &pol, &result); } return status; } /************************************************************************* *************************************************************************/ static NTSTATUS samr_find_machine_account(TALLOC_CTX *mem_ctx, struct dcerpc_binding_handle *b, const char *account_name, uint32_t access_mask, struct dom_sid2 **domain_sid_p, uint32_t *user_rid_p, struct policy_handle *user_handle) { NTSTATUS status; NTSTATUS result = NT_STATUS_OK; struct policy_handle connect_handle; struct policy_handle domain_handle = { 0, }; struct lsa_String domain_name; struct dom_sid2 *domain_sid; struct lsa_String names; struct samr_Ids rids; struct samr_Ids types; uint32_t rid; status = dcerpc_samr_Connect2(b, mem_ctx, lp_netbios_name(), SAMR_ACCESS_CONNECT_TO_SERVER | SAMR_ACCESS_ENUM_DOMAINS | SAMR_ACCESS_LOOKUP_DOMAIN, &connect_handle, &result); if (!NT_STATUS_IS_OK(status)) { goto out; } if (!NT_STATUS_IS_OK(result)) { status = result; goto out; } init_lsa_String(&domain_name, get_global_sam_name()); status = dcerpc_samr_LookupDomain(b, mem_ctx, &connect_handle, &domain_name, &domain_sid, &result); if (!NT_STATUS_IS_OK(status)) { goto out; } if (!NT_STATUS_IS_OK(result)) { status = result; goto out; } status = dcerpc_samr_OpenDomain(b, mem_ctx, &connect_handle, SAMR_DOMAIN_ACCESS_OPEN_ACCOUNT, domain_sid, &domain_handle, &result); if (!NT_STATUS_IS_OK(status)) { goto out; } if (!NT_STATUS_IS_OK(result)) { status = result; goto out; } init_lsa_String(&names, account_name); status = dcerpc_samr_LookupNames(b, mem_ctx, &domain_handle, 1, &names, &rids, &types, &result); if (!NT_STATUS_IS_OK(status)) { goto out; } if (!NT_STATUS_IS_OK(result)) { status = result; goto out; } if (rids.count != 1) { status = NT_STATUS_NO_SUCH_USER; goto out; } if (rids.count != types.count) { status = NT_STATUS_INVALID_PARAMETER; goto out; } if (types.ids[0] != SID_NAME_USER) { status = NT_STATUS_NO_SUCH_USER; goto out; } rid = rids.ids[0]; status = dcerpc_samr_OpenUser(b, mem_ctx, &domain_handle, access_mask, rid, user_handle, &result); if (!NT_STATUS_IS_OK(status)) { goto out; } if (!NT_STATUS_IS_OK(result)) { status = result; goto out; } if (user_rid_p) { *user_rid_p = rid; } if (domain_sid_p) { *domain_sid_p = domain_sid; } out: if (is_valid_policy_hnd(&domain_handle)) { dcerpc_samr_Close(b, mem_ctx, &domain_handle, &result); } if (is_valid_policy_hnd(&connect_handle)) { dcerpc_samr_Close(b, mem_ctx, &connect_handle, &result); } return status; } /****************************************************************** gets a machine password entry. checks access rights of the host. ******************************************************************/ static NTSTATUS get_md4pw(struct samr_Password *md4pw, const char *mach_acct, enum netr_SchannelType sec_chan_type, struct dom_sid *sid, struct messaging_context *msg_ctx) { NTSTATUS status; NTSTATUS result = NT_STATUS_OK; TALLOC_CTX *mem_ctx; struct dcerpc_binding_handle *h = NULL; struct tsocket_address *local; struct policy_handle user_handle; uint32_t user_rid; struct dom_sid *domain_sid; uint32_t acct_ctrl; union samr_UserInfo *info; struct auth_session_info *session_info; int rc; #if 0 /* * Currently this code is redundent as we already have a filter * by hostname list. What this code really needs to do is to * get a hosts allowed/hosts denied list from the SAM database * on a per user basis, and make the access decision there. * I will leave this code here for now as a reminder to implement * this at a later date. JRA. */ if (!allow_access(lp_domain_hostsdeny(), lp_domain_hostsallow(), p->client_id.name, p->client_id.addr)) { DEBUG(0,("get_md4pw: Workstation %s denied access to domain\n", mach_acct)); return False; } #endif /* 0 */ mem_ctx = talloc_stackframe(); if (mem_ctx == NULL) { status = NT_STATUS_NO_MEMORY; goto out; } status = make_session_info_system(mem_ctx, &session_info); if (!NT_STATUS_IS_OK(status)) { goto out; } ZERO_STRUCT(user_handle); rc = tsocket_address_inet_from_strings(mem_ctx, "ip", "127.0.0.1", 0, &local); if (rc < 0) { status = NT_STATUS_NO_MEMORY; goto out; } status = rpcint_binding_handle(mem_ctx, &ndr_table_samr, local, session_info, msg_ctx, &h); if (!NT_STATUS_IS_OK(status)) { goto out; } become_root(); status = samr_find_machine_account(mem_ctx, h, mach_acct, SEC_FLAG_MAXIMUM_ALLOWED, &domain_sid, &user_rid, &user_handle); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { goto out; } status = dcerpc_samr_QueryUserInfo2(h, mem_ctx, &user_handle, UserControlInformation, &info, &result); if (!NT_STATUS_IS_OK(status)) { goto out; } if (!NT_STATUS_IS_OK(result)) { status = result; goto out; } acct_ctrl = info->info16.acct_flags; if (acct_ctrl & ACB_DISABLED) { DEBUG(0,("get_md4pw: Workstation %s: account is disabled\n", mach_acct)); status = NT_STATUS_ACCOUNT_DISABLED; goto out; } if (!(acct_ctrl & ACB_SVRTRUST) && !(acct_ctrl & ACB_WSTRUST) && !(acct_ctrl & ACB_DOMTRUST)) { DEBUG(0,("get_md4pw: Workstation %s: account is not a trust account\n", mach_acct)); status = NT_STATUS_NO_TRUST_SAM_ACCOUNT; goto out; } switch (sec_chan_type) { case SEC_CHAN_BDC: if (!(acct_ctrl & ACB_SVRTRUST)) { DEBUG(0,("get_md4pw: Workstation %s: BDC secure channel requested " "but not a server trust account\n", mach_acct)); status = NT_STATUS_NO_TRUST_SAM_ACCOUNT; goto out; } break; case SEC_CHAN_WKSTA: if (!(acct_ctrl & ACB_WSTRUST)) { DEBUG(0,("get_md4pw: Workstation %s: WORKSTATION secure channel requested " "but not a workstation trust account\n", mach_acct)); status = NT_STATUS_NO_TRUST_SAM_ACCOUNT; goto out; } break; case SEC_CHAN_DOMAIN: if (!(acct_ctrl & ACB_DOMTRUST)) { DEBUG(0,("get_md4pw: Workstation %s: DOMAIN secure channel requested " "but not a interdomain trust account\n", mach_acct)); status = NT_STATUS_NO_TRUST_SAM_ACCOUNT; goto out; } break; default: break; } become_root(); status = dcerpc_samr_QueryUserInfo2(h, mem_ctx, &user_handle, UserInternal1Information, &info, &result); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { goto out; } if (!NT_STATUS_IS_OK(result)) { status = result; goto out; } if (info->info18.nt_pwd_active == 0) { DEBUG(0,("get_md4pw: Workstation %s: account does not have a password\n", mach_acct)); status = NT_STATUS_LOGON_FAILURE; goto out; } /* samr gives out nthash unencrypted (!) */ memcpy(md4pw->hash, info->info18.nt_pwd.hash, 16); sid_compose(sid, domain_sid, user_rid); out: if (h && is_valid_policy_hnd(&user_handle)) { dcerpc_samr_Close(h, mem_ctx, &user_handle, &result); } talloc_free(mem_ctx); return status; } /************************************************************************* _netr_ServerReqChallenge *************************************************************************/ NTSTATUS _netr_ServerReqChallenge(struct pipes_struct *p, struct netr_ServerReqChallenge *r) { struct netlogon_server_pipe_state *pipe_state = talloc_get_type(p->private_data, struct netlogon_server_pipe_state); if (pipe_state) { DEBUG(10,("_netr_ServerReqChallenge: new challenge requested. Clearing old state.\n")); talloc_free(pipe_state); p->private_data = NULL; } pipe_state = talloc(p, struct netlogon_server_pipe_state); NT_STATUS_HAVE_NO_MEMORY(pipe_state); pipe_state->client_challenge = *r->in.credentials; generate_random_buffer(pipe_state->server_challenge.data, sizeof(pipe_state->server_challenge.data)); *r->out.return_credentials = pipe_state->server_challenge; p->private_data = pipe_state; return NT_STATUS_OK; } /************************************************************************* _netr_ServerAuthenticate Create the initial credentials. *************************************************************************/ NTSTATUS _netr_ServerAuthenticate(struct pipes_struct *p, struct netr_ServerAuthenticate *r) { struct netr_ServerAuthenticate3 a; uint32_t negotiate_flags = 0; uint32_t rid; a.in.server_name = r->in.server_name; a.in.account_name = r->in.account_name; a.in.secure_channel_type = r->in.secure_channel_type; a.in.computer_name = r->in.computer_name; a.in.credentials = r->in.credentials; a.in.negotiate_flags = &negotiate_flags; a.out.return_credentials = r->out.return_credentials; a.out.rid = &rid; a.out.negotiate_flags = &negotiate_flags; return _netr_ServerAuthenticate3(p, &a); } /************************************************************************* _netr_ServerAuthenticate3 *************************************************************************/ NTSTATUS _netr_ServerAuthenticate3(struct pipes_struct *p, struct netr_ServerAuthenticate3 *r) { NTSTATUS status; uint32_t srv_flgs; /* r->in.negotiate_flags is an aliased pointer to r->out.negotiate_flags, * so use a copy to avoid destroying the client values. */ uint32_t in_neg_flags = *r->in.negotiate_flags; const char *fn; struct loadparm_context *lp_ctx; struct dom_sid sid; struct samr_Password mach_pwd; struct netlogon_creds_CredentialState *creds; struct netlogon_server_pipe_state *pipe_state = talloc_get_type(p->private_data, struct netlogon_server_pipe_state); /* According to Microsoft (see bugid #6099) * Windows 7 looks at the negotiate_flags * returned in this structure *even if the * call fails with access denied* ! So in order * to allow Win7 to connect to a Samba NT style * PDC we set the flags before we know if it's * an error or not. */ /* 0x000001ff */ srv_flgs = NETLOGON_NEG_ACCOUNT_LOCKOUT | NETLOGON_NEG_PERSISTENT_SAMREPL | NETLOGON_NEG_ARCFOUR | NETLOGON_NEG_PROMOTION_COUNT | NETLOGON_NEG_CHANGELOG_BDC | NETLOGON_NEG_FULL_SYNC_REPL | NETLOGON_NEG_MULTIPLE_SIDS | NETLOGON_NEG_REDO | NETLOGON_NEG_PASSWORD_CHANGE_REFUSAL | NETLOGON_NEG_PASSWORD_SET2; /* Ensure we support strong (128-bit) keys. */ if (in_neg_flags & NETLOGON_NEG_STRONG_KEYS) { srv_flgs |= NETLOGON_NEG_STRONG_KEYS; } if (in_neg_flags & NETLOGON_NEG_SUPPORTS_AES) { srv_flgs |= NETLOGON_NEG_SUPPORTS_AES; } if (lp_server_schannel() != false) { srv_flgs |= NETLOGON_NEG_SCHANNEL; } /* * Support authenticaten of trusted domains. * * These flags are the minimum required set which works with win2k3 * and win2k8. */ if (pdb_capabilities() & PDB_CAP_TRUSTED_DOMAINS_EX) { srv_flgs |= NETLOGON_NEG_TRANSITIVE_TRUSTS | NETLOGON_NEG_DNS_DOMAIN_TRUSTS | NETLOGON_NEG_CROSS_FOREST_TRUSTS | NETLOGON_NEG_NEUTRALIZE_NT4_EMULATION; } switch (p->opnum) { case NDR_NETR_SERVERAUTHENTICATE: fn = "_netr_ServerAuthenticate"; break; case NDR_NETR_SERVERAUTHENTICATE2: fn = "_netr_ServerAuthenticate2"; break; case NDR_NETR_SERVERAUTHENTICATE3: fn = "_netr_ServerAuthenticate3"; break; default: return NT_STATUS_INTERNAL_ERROR; } /* We use this as the key to store the creds: */ /* r->in.computer_name */ if (!pipe_state) { DEBUG(0,("%s: no challenge sent to client %s\n", fn, r->in.computer_name)); status = NT_STATUS_ACCESS_DENIED; goto out; } if ( (lp_server_schannel() == true) && ((in_neg_flags & NETLOGON_NEG_SCHANNEL) == 0) ) { /* schannel must be used, but client did not offer it. */ DEBUG(0,("%s: schannel required but client failed " "to offer it. Client was %s\n", fn, r->in.account_name)); status = NT_STATUS_ACCESS_DENIED; goto out; } status = get_md4pw(&mach_pwd, r->in.account_name, r->in.secure_channel_type, &sid, p->msg_ctx); if (!NT_STATUS_IS_OK(status)) { DEBUG(0,("%s: failed to get machine password for " "account %s: %s\n", fn, r->in.account_name, nt_errstr(status) )); /* always return NT_STATUS_ACCESS_DENIED */ status = NT_STATUS_ACCESS_DENIED; goto out; } /* From the client / server challenges and md4 password, generate sess key */ /* Check client credentials are valid. */ creds = netlogon_creds_server_init(p->mem_ctx, r->in.account_name, r->in.computer_name, r->in.secure_channel_type, &pipe_state->client_challenge, &pipe_state->server_challenge, &mach_pwd, r->in.credentials, r->out.return_credentials, srv_flgs); if (!creds) { DEBUG(0,("%s: netlogon_creds_server_check failed. Rejecting auth " "request from client %s machine account %s\n", fn, r->in.computer_name, r->in.account_name)); status = NT_STATUS_ACCESS_DENIED; goto out; } creds->sid = dom_sid_dup(creds, &sid); if (!creds->sid) { status = NT_STATUS_NO_MEMORY; goto out; } lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers()); if (lp_ctx == NULL) { DEBUG(10, ("loadparm_init_s3 failed\n")); status = NT_STATUS_INTERNAL_ERROR; goto out; } /* Store off the state so we can continue after client disconnect. */ become_root(); status = schannel_save_creds_state(p->mem_ctx, lp_ctx, creds); unbecome_root(); talloc_unlink(p->mem_ctx, lp_ctx); if (!NT_STATUS_IS_OK(status)) { goto out; } sid_peek_rid(&sid, r->out.rid); status = NT_STATUS_OK; out: *r->out.negotiate_flags = srv_flgs; return status; } /************************************************************************* _netr_ServerAuthenticate2 *************************************************************************/ NTSTATUS _netr_ServerAuthenticate2(struct pipes_struct *p, struct netr_ServerAuthenticate2 *r) { struct netr_ServerAuthenticate3 a; uint32_t rid; a.in.server_name = r->in.server_name; a.in.account_name = r->in.account_name; a.in.secure_channel_type = r->in.secure_channel_type; a.in.computer_name = r->in.computer_name; a.in.credentials = r->in.credentials; a.in.negotiate_flags = r->in.negotiate_flags; a.out.return_credentials = r->out.return_credentials; a.out.rid = &rid; a.out.negotiate_flags = r->out.negotiate_flags; return _netr_ServerAuthenticate3(p, &a); } /************************************************************************* * If schannel is required for this call test that it actually is available. *************************************************************************/ static NTSTATUS schannel_check_required(struct pipe_auth_data *auth_info, const char *computer_name, bool integrity, bool privacy) { if (auth_info && auth_info->auth_type == DCERPC_AUTH_TYPE_SCHANNEL) { if (!privacy && !integrity) { return NT_STATUS_OK; } if ((!privacy && integrity) && auth_info->auth_level == DCERPC_AUTH_LEVEL_INTEGRITY) { return NT_STATUS_OK; } if ((privacy || integrity) && auth_info->auth_level == DCERPC_AUTH_LEVEL_PRIVACY) { return NT_STATUS_OK; } } /* test didn't pass */ DEBUG(0, ("schannel_check_required: [%s] is not using schannel\n", computer_name)); return NT_STATUS_ACCESS_DENIED; } /************************************************************************* *************************************************************************/ static NTSTATUS netr_creds_server_step_check(struct pipes_struct *p, TALLOC_CTX *mem_ctx, const char *computer_name, struct netr_Authenticator *received_authenticator, struct netr_Authenticator *return_authenticator, struct netlogon_creds_CredentialState **creds_out) { NTSTATUS status; bool schannel_global_required = (lp_server_schannel() == true) ? true:false; struct loadparm_context *lp_ctx; if (schannel_global_required) { status = schannel_check_required(&p->auth, computer_name, false, false); if (!NT_STATUS_IS_OK(status)) { return status; } } lp_ctx = loadparm_init_s3(mem_ctx, loadparm_s3_helpers()); if (lp_ctx == NULL) { DEBUG(0, ("loadparm_init_s3 failed\n")); return NT_STATUS_INTERNAL_ERROR; } status = schannel_check_creds_state(mem_ctx, lp_ctx, computer_name, received_authenticator, return_authenticator, creds_out); talloc_unlink(mem_ctx, lp_ctx); return status; } /************************************************************************* *************************************************************************/ static NTSTATUS netr_set_machine_account_password(TALLOC_CTX *mem_ctx, struct auth_session_info *session_info, struct messaging_context *msg_ctx, const char *account_name, struct samr_Password *nt_hash) { NTSTATUS status; NTSTATUS result = NT_STATUS_OK; struct dcerpc_binding_handle *h = NULL; struct tsocket_address *local; struct policy_handle user_handle; uint32_t acct_ctrl; union samr_UserInfo *info; struct samr_UserInfo18 info18; DATA_BLOB in,out; int rc; ZERO_STRUCT(user_handle); rc = tsocket_address_inet_from_strings(mem_ctx, "ip", "127.0.0.1", 0, &local); if (rc < 0) { status = NT_STATUS_NO_MEMORY; goto out; } status = rpcint_binding_handle(mem_ctx, &ndr_table_samr, local, session_info, msg_ctx, &h); if (!NT_STATUS_IS_OK(status)) { goto out; } become_root(); status = samr_find_machine_account(mem_ctx, h, account_name, SEC_FLAG_MAXIMUM_ALLOWED, NULL, NULL, &user_handle); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { goto out; } status = dcerpc_samr_QueryUserInfo2(h, mem_ctx, &user_handle, UserControlInformation, &info, &result); if (!NT_STATUS_IS_OK(status)) { goto out; } if (!NT_STATUS_IS_OK(result)) { status = result; goto out; } acct_ctrl = info->info16.acct_flags; if (!(acct_ctrl & ACB_WSTRUST || acct_ctrl & ACB_SVRTRUST || acct_ctrl & ACB_DOMTRUST)) { status = NT_STATUS_NO_SUCH_USER; goto out; } if (acct_ctrl & ACB_DISABLED) { status = NT_STATUS_ACCOUNT_DISABLED; goto out; } ZERO_STRUCT(info18); in = data_blob_const(nt_hash->hash, 16); out = data_blob_talloc_zero(mem_ctx, 16); sess_crypt_blob(&out, &in, &session_info->session_key, true); memcpy(info18.nt_pwd.hash, out.data, out.length); info18.nt_pwd_active = true; info->info18 = info18; become_root(); status = dcerpc_samr_SetUserInfo2(h, mem_ctx, &user_handle, UserInternal1Information, info, &result); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { goto out; } if (!NT_STATUS_IS_OK(result)) { status = result; goto out; } out: if (h && is_valid_policy_hnd(&user_handle)) { dcerpc_samr_Close(h, mem_ctx, &user_handle, &result); } return status; } /************************************************************************* _netr_ServerPasswordSet *************************************************************************/ NTSTATUS _netr_ServerPasswordSet(struct pipes_struct *p, struct netr_ServerPasswordSet *r) { NTSTATUS status = NT_STATUS_OK; int i; struct netlogon_creds_CredentialState *creds; DEBUG(5,("_netr_ServerPasswordSet: %d\n", __LINE__)); become_root(); status = netr_creds_server_step_check(p, p->mem_ctx, r->in.computer_name, r->in.credential, r->out.return_authenticator, &creds); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { DEBUG(2,("_netr_ServerPasswordSet: netlogon_creds_server_step failed. Rejecting auth " "request from client %s machine account %s\n", r->in.computer_name, creds->computer_name)); TALLOC_FREE(creds); return status; } DEBUG(3,("_netr_ServerPasswordSet: Server Password Set by remote machine:[%s] on account [%s]\n", r->in.computer_name, creds->computer_name)); netlogon_creds_des_decrypt(creds, r->in.new_password); DEBUG(100,("_netr_ServerPasswordSet: new given value was :\n")); for(i = 0; i < sizeof(r->in.new_password->hash); i++) DEBUG(100,("%02X ", r->in.new_password->hash[i])); DEBUG(100,("\n")); status = netr_set_machine_account_password(p->mem_ctx, p->session_info, p->msg_ctx, creds->account_name, r->in.new_password); return status; } /**************************************************************** _netr_ServerPasswordSet2 ****************************************************************/ NTSTATUS _netr_ServerPasswordSet2(struct pipes_struct *p, struct netr_ServerPasswordSet2 *r) { NTSTATUS status; struct netlogon_creds_CredentialState *creds = NULL; DATA_BLOB plaintext; struct samr_CryptPassword password_buf; struct samr_Password nt_hash; become_root(); status = netr_creds_server_step_check(p, p->mem_ctx, r->in.computer_name, r->in.credential, r->out.return_authenticator, &creds); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { const char *computer_name = ""; if (creds && creds->computer_name) { computer_name = creds->computer_name; } DEBUG(2,("_netr_ServerPasswordSet2: netlogon_creds_server_step " "failed. Rejecting auth request from client %s machine account %s\n", r->in.computer_name, computer_name)); TALLOC_FREE(creds); return status; } memcpy(password_buf.data, r->in.new_password->data, 512); SIVAL(password_buf.data, 512, r->in.new_password->length); netlogon_creds_arcfour_crypt(creds, password_buf.data, 516); if (!extract_pw_from_buffer(p->mem_ctx, password_buf.data, &plaintext)) { TALLOC_FREE(creds); return NT_STATUS_WRONG_PASSWORD; } mdfour(nt_hash.hash, plaintext.data, plaintext.length); status = netr_set_machine_account_password(p->mem_ctx, p->session_info, p->msg_ctx, creds->account_name, &nt_hash); TALLOC_FREE(creds); return status; } /************************************************************************* _netr_LogonSamLogoff *************************************************************************/ NTSTATUS _netr_LogonSamLogoff(struct pipes_struct *p, struct netr_LogonSamLogoff *r) { NTSTATUS status; struct netlogon_creds_CredentialState *creds; become_root(); status = netr_creds_server_step_check(p, p->mem_ctx, r->in.computer_name, r->in.credential, r->out.return_authenticator, &creds); unbecome_root(); return status; } static NTSTATUS _netr_LogonSamLogon_check(const struct netr_LogonSamLogonEx *r) { switch (r->in.logon_level) { case NetlogonInteractiveInformation: case NetlogonServiceInformation: case NetlogonInteractiveTransitiveInformation: case NetlogonServiceTransitiveInformation: if (r->in.logon->password == NULL) { return NT_STATUS_INVALID_PARAMETER; } switch (r->in.validation_level) { case NetlogonValidationSamInfo: /* 2 */ case NetlogonValidationSamInfo2: /* 3 */ break; case NetlogonValidationSamInfo4: /* 6 */ if ((pdb_capabilities() & PDB_CAP_ADS) == 0) { DEBUG(10,("Not adding validation info level 6 " "without ADS passdb backend\n")); return NT_STATUS_INVALID_INFO_CLASS; } break; default: return NT_STATUS_INVALID_INFO_CLASS; } break; case NetlogonNetworkInformation: case NetlogonNetworkTransitiveInformation: if (r->in.logon->network == NULL) { return NT_STATUS_INVALID_PARAMETER; } switch (r->in.validation_level) { case NetlogonValidationSamInfo: /* 2 */ case NetlogonValidationSamInfo2: /* 3 */ break; case NetlogonValidationSamInfo4: /* 6 */ if ((pdb_capabilities() & PDB_CAP_ADS) == 0) { DEBUG(10,("Not adding validation info level 6 " "without ADS passdb backend\n")); return NT_STATUS_INVALID_INFO_CLASS; } break; default: return NT_STATUS_INVALID_INFO_CLASS; } break; case NetlogonGenericInformation: if (r->in.logon->generic == NULL) { return NT_STATUS_INVALID_PARAMETER; } /* we don't support this here */ return NT_STATUS_INVALID_PARAMETER; #if 0 switch (r->in.validation_level) { /* TODO: case NetlogonValidationGenericInfo: 4 */ case NetlogonValidationGenericInfo2: /* 5 */ break; default: return NT_STATUS_INVALID_INFO_CLASS; } break; #endif default: return NT_STATUS_INVALID_PARAMETER; } return NT_STATUS_OK; } /************************************************************************* _netr_LogonSamLogon_base *************************************************************************/ static NTSTATUS _netr_LogonSamLogon_base(struct pipes_struct *p, struct netr_LogonSamLogonEx *r, struct netlogon_creds_CredentialState *creds) { NTSTATUS status = NT_STATUS_OK; union netr_LogonLevel *logon = r->in.logon; const char *nt_username, *nt_domain, *nt_workstation; struct auth_usersupplied_info *user_info = NULL; struct auth_serversupplied_info *server_info = NULL; struct auth_context *auth_context = NULL; uint8_t pipe_session_key[16]; bool process_creds = true; const char *fn; switch (p->opnum) { case NDR_NETR_LOGONSAMLOGON: process_creds = true; fn = "_netr_LogonSamLogon"; break; case NDR_NETR_LOGONSAMLOGONWITHFLAGS: process_creds = true; fn = "_netr_LogonSamLogonWithFlags"; break; case NDR_NETR_LOGONSAMLOGONEX: process_creds = false; fn = "_netr_LogonSamLogonEx"; break; default: return NT_STATUS_INTERNAL_ERROR; } *r->out.authoritative = true; /* authoritative response */ switch (r->in.validation_level) { case 2: r->out.validation->sam2 = talloc_zero(p->mem_ctx, struct netr_SamInfo2); if (!r->out.validation->sam2) { return NT_STATUS_NO_MEMORY; } break; case 3: r->out.validation->sam3 = talloc_zero(p->mem_ctx, struct netr_SamInfo3); if (!r->out.validation->sam3) { return NT_STATUS_NO_MEMORY; } break; case 6: r->out.validation->sam6 = talloc_zero(p->mem_ctx, struct netr_SamInfo6); if (!r->out.validation->sam6) { return NT_STATUS_NO_MEMORY; } break; default: DEBUG(0,("%s: bad validation_level value %d.\n", fn, (int)r->in.validation_level)); return NT_STATUS_INVALID_INFO_CLASS; } switch (r->in.logon_level) { case NetlogonInteractiveInformation: case NetlogonServiceInformation: case NetlogonInteractiveTransitiveInformation: case NetlogonServiceTransitiveInformation: nt_username = logon->password->identity_info.account_name.string ? logon->password->identity_info.account_name.string : ""; nt_domain = logon->password->identity_info.domain_name.string ? logon->password->identity_info.domain_name.string : ""; nt_workstation = logon->password->identity_info.workstation.string ? logon->password->identity_info.workstation.string : ""; DEBUG(3,("SAM Logon (Interactive). Domain:[%s]. ", lp_workgroup())); break; case NetlogonNetworkInformation: case NetlogonNetworkTransitiveInformation: nt_username = logon->network->identity_info.account_name.string ? logon->network->identity_info.account_name.string : ""; nt_domain = logon->network->identity_info.domain_name.string ? logon->network->identity_info.domain_name.string : ""; nt_workstation = logon->network->identity_info.workstation.string ? logon->network->identity_info.workstation.string : ""; DEBUG(3,("SAM Logon (Network). Domain:[%s]. ", lp_workgroup())); break; default: DEBUG(2,("SAM Logon: unsupported switch value\n")); return NT_STATUS_INVALID_INFO_CLASS; } /* end switch */ DEBUG(3,("User:[%s@%s] Requested Domain:[%s]\n", nt_username, nt_workstation, nt_domain)); fstrcpy(current_user_info.smb_name, nt_username); sub_set_smb_name(nt_username); DEBUG(5,("Attempting validation level %d for unmapped username %s.\n", r->in.validation_level, nt_username)); status = NT_STATUS_OK; switch (r->in.logon_level) { case NetlogonNetworkInformation: case NetlogonNetworkTransitiveInformation: { const char *wksname = nt_workstation; status = make_auth_context_fixed(talloc_tos(), &auth_context, logon->network->challenge); if (!NT_STATUS_IS_OK(status)) { return status; } /* For a network logon, the workstation name comes in with two * backslashes in the front. Strip them if they are there. */ if (*wksname == '\\') wksname++; if (*wksname == '\\') wksname++; /* Standard challenge/response authentication */ if (!make_user_info_netlogon_network(&user_info, nt_username, nt_domain, wksname, p->remote_address, logon->network->identity_info.parameter_control, logon->network->lm.data, logon->network->lm.length, logon->network->nt.data, logon->network->nt.length)) { status = NT_STATUS_NO_MEMORY; } break; } case NetlogonInteractiveInformation: case NetlogonServiceInformation: case NetlogonInteractiveTransitiveInformation: case NetlogonServiceTransitiveInformation: /* 'Interactive' authentication, supplies the password in its MD4 form, encrypted with the session key. We will convert this to challenge/response for the auth subsystem to chew on */ { uint8_t chal[8]; status = make_auth_context_subsystem(talloc_tos(), &auth_context); if (!NT_STATUS_IS_OK(status)) { return status; } auth_get_ntlm_challenge(auth_context, chal); if (!make_user_info_netlogon_interactive(&user_info, nt_username, nt_domain, nt_workstation, p->remote_address, logon->password->identity_info.parameter_control, chal, logon->password->lmpassword.hash, logon->password->ntpassword.hash, creds->session_key)) { status = NT_STATUS_NO_MEMORY; } break; } default: DEBUG(2,("SAM Logon: unsupported switch value\n")); return NT_STATUS_INVALID_INFO_CLASS; } /* end switch */ if ( NT_STATUS_IS_OK(status) ) { status = auth_check_ntlm_password(auth_context, user_info, &server_info); } TALLOC_FREE(auth_context); free_user_info(&user_info); DEBUG(5,("%s: check_password returned status %s\n", fn, nt_errstr(status))); /* Check account and password */ if (!NT_STATUS_IS_OK(status)) { /* If we don't know what this domain is, we need to indicate that we are not authoritative. This allows the client to decide if it needs to try a local user. Fix by jpjanosi@us.ibm.com, #2976 */ if ( NT_STATUS_EQUAL(status, NT_STATUS_NO_SUCH_USER) && !strequal(nt_domain, get_global_sam_name()) && !is_trusted_domain(nt_domain) ) *r->out.authoritative = false; /* We are not authoritative */ TALLOC_FREE(server_info); return status; } if (server_info->guest) { /* We don't like guest domain logons... */ DEBUG(5,("%s: Attempted domain logon as GUEST " "denied.\n", fn)); TALLOC_FREE(server_info); return NT_STATUS_LOGON_FAILURE; } /* This is the point at which, if the login was successful, that the SAM Local Security Authority should record that the user is logged in to the domain. */ if (process_creds) { /* Get the pipe session key from the creds. */ memcpy(pipe_session_key, creds->session_key, 16); } else { struct schannel_state *schannel_auth; /* Get the pipe session key from the schannel. */ if ((p->auth.auth_type != DCERPC_AUTH_TYPE_SCHANNEL) || (p->auth.auth_ctx == NULL)) { return NT_STATUS_INVALID_HANDLE; } schannel_auth = talloc_get_type_abort(p->auth.auth_ctx, struct schannel_state); memcpy(pipe_session_key, schannel_auth->creds->session_key, 16); } switch (r->in.validation_level) { case 2: status = serverinfo_to_SamInfo2(server_info, pipe_session_key, 16, r->out.validation->sam2); break; case 3: status = serverinfo_to_SamInfo3(server_info, pipe_session_key, 16, r->out.validation->sam3); break; case 6: status = serverinfo_to_SamInfo6(server_info, pipe_session_key, 16, r->out.validation->sam6); break; } TALLOC_FREE(server_info); return status; } /**************************************************************** _netr_LogonSamLogonWithFlags ****************************************************************/ NTSTATUS _netr_LogonSamLogonWithFlags(struct pipes_struct *p, struct netr_LogonSamLogonWithFlags *r) { NTSTATUS status; struct netlogon_creds_CredentialState *creds; struct netr_LogonSamLogonEx r2; struct netr_Authenticator return_authenticator; *r->out.authoritative = true; r2.in.server_name = r->in.server_name; r2.in.computer_name = r->in.computer_name; r2.in.logon_level = r->in.logon_level; r2.in.logon = r->in.logon; r2.in.validation_level = r->in.validation_level; r2.in.flags = r->in.flags; r2.out.validation = r->out.validation; r2.out.authoritative = r->out.authoritative; r2.out.flags = r->out.flags; status = _netr_LogonSamLogon_check(&r2); if (!NT_STATUS_IS_OK(status)) { return status; } become_root(); status = netr_creds_server_step_check(p, p->mem_ctx, r->in.computer_name, r->in.credential, &return_authenticator, &creds); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { return status; } status = _netr_LogonSamLogon_base(p, &r2, creds); *r->out.return_authenticator = return_authenticator; return status; } /************************************************************************* _netr_LogonSamLogon *************************************************************************/ NTSTATUS _netr_LogonSamLogon(struct pipes_struct *p, struct netr_LogonSamLogon *r) { NTSTATUS status; struct netr_LogonSamLogonWithFlags r2; uint32_t flags = 0; r2.in.server_name = r->in.server_name; r2.in.computer_name = r->in.computer_name; r2.in.credential = r->in.credential; r2.in.logon_level = r->in.logon_level; r2.in.logon = r->in.logon; r2.in.validation_level = r->in.validation_level; r2.in.return_authenticator = r->in.return_authenticator; r2.in.flags = &flags; r2.out.validation = r->out.validation; r2.out.authoritative = r->out.authoritative; r2.out.flags = &flags; r2.out.return_authenticator = r->out.return_authenticator; status = _netr_LogonSamLogonWithFlags(p, &r2); return status; } /************************************************************************* _netr_LogonSamLogonEx - no credential chaining. Map into net sam logon. *************************************************************************/ NTSTATUS _netr_LogonSamLogonEx(struct pipes_struct *p, struct netr_LogonSamLogonEx *r) { NTSTATUS status; struct netlogon_creds_CredentialState *creds = NULL; struct loadparm_context *lp_ctx; *r->out.authoritative = true; status = _netr_LogonSamLogon_check(r); if (!NT_STATUS_IS_OK(status)) { return status; } /* Only allow this if the pipe is protected. */ if (p->auth.auth_type != DCERPC_AUTH_TYPE_SCHANNEL) { DEBUG(0,("_netr_LogonSamLogonEx: client %s not using schannel for netlogon\n", get_remote_machine_name() )); return NT_STATUS_INVALID_PARAMETER; } lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers()); if (lp_ctx == NULL) { DEBUG(0, ("loadparm_init_s3 failed\n")); return NT_STATUS_INTERNAL_ERROR; } become_root(); status = schannel_get_creds_state(p->mem_ctx, lp_ctx, r->in.computer_name, &creds); unbecome_root(); talloc_unlink(p->mem_ctx, lp_ctx); if (!NT_STATUS_IS_OK(status)) { return status; } status = _netr_LogonSamLogon_base(p, r, creds); TALLOC_FREE(creds); return status; } /************************************************************************* _ds_enum_dom_trusts *************************************************************************/ #if 0 /* JERRY -- not correct */ NTSTATUS _ds_enum_dom_trusts(struct pipes_struct *p, DS_Q_ENUM_DOM_TRUSTS *q_u, DS_R_ENUM_DOM_TRUSTS *r_u) { NTSTATUS status = NT_STATUS_OK; /* TODO: According to MSDN, the can only be executed against a DC or domain member running Windows 2000 or later. Need to test against a standalone 2k server and see what it does. A windows 2000 DC includes its own domain in the list. --jerry */ return status; } #endif /* JERRY */ /**************************************************************** ****************************************************************/ WERROR _netr_LogonUasLogon(struct pipes_struct *p, struct netr_LogonUasLogon *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_LogonUasLogoff(struct pipes_struct *p, struct netr_LogonUasLogoff *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_DatabaseDeltas(struct pipes_struct *p, struct netr_DatabaseDeltas *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_DatabaseSync(struct pipes_struct *p, struct netr_DatabaseSync *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_AccountDeltas(struct pipes_struct *p, struct netr_AccountDeltas *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_AccountSync(struct pipes_struct *p, struct netr_AccountSync *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ static bool wb_getdcname(TALLOC_CTX *mem_ctx, const char *domain, const char **dcname, uint32_t flags, WERROR *werr) { wbcErr result; struct wbcDomainControllerInfo *dc_info = NULL; result = wbcLookupDomainController(domain, flags, &dc_info); switch (result) { case WBC_ERR_SUCCESS: break; case WBC_ERR_WINBIND_NOT_AVAILABLE: return false; case WBC_ERR_DOMAIN_NOT_FOUND: *werr = WERR_NO_SUCH_DOMAIN; return true; default: *werr = WERR_DOMAIN_CONTROLLER_NOT_FOUND; return true; } *dcname = talloc_strdup(mem_ctx, dc_info->dc_name); wbcFreeMemory(dc_info); if (!*dcname) { *werr = WERR_NOMEM; return false; } *werr = WERR_OK; return true; } /**************************************************************** _netr_GetDcName ****************************************************************/ WERROR _netr_GetDcName(struct pipes_struct *p, struct netr_GetDcName *r) { NTSTATUS status; WERROR werr; uint32_t flags; struct netr_DsRGetDCNameInfo *info; bool ret; ret = wb_getdcname(p->mem_ctx, r->in.domainname, r->out.dcname, WBC_LOOKUP_DC_IS_FLAT_NAME | WBC_LOOKUP_DC_RETURN_FLAT_NAME | WBC_LOOKUP_DC_PDC_REQUIRED, &werr); if (ret == true) { return werr; } flags = DS_PDC_REQUIRED | DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME; status = dsgetdcname(p->mem_ctx, p->msg_ctx, r->in.domainname, NULL, NULL, flags, &info); if (!NT_STATUS_IS_OK(status)) { return ntstatus_to_werror(status); } *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc); talloc_free(info); if (!*r->out.dcname) { return WERR_NOMEM; } return WERR_OK; } /**************************************************************** _netr_GetAnyDCName ****************************************************************/ WERROR _netr_GetAnyDCName(struct pipes_struct *p, struct netr_GetAnyDCName *r) { NTSTATUS status; WERROR werr; uint32_t flags; struct netr_DsRGetDCNameInfo *info; bool ret; ret = wb_getdcname(p->mem_ctx, r->in.domainname, r->out.dcname, WBC_LOOKUP_DC_IS_FLAT_NAME | WBC_LOOKUP_DC_RETURN_FLAT_NAME, &werr); if (ret == true) { return werr; } flags = DS_IS_FLAT_NAME | DS_RETURN_FLAT_NAME; status = dsgetdcname(p->mem_ctx, p->msg_ctx, r->in.domainname, NULL, NULL, flags, &info); if (!NT_STATUS_IS_OK(status)) { return ntstatus_to_werror(status); } *r->out.dcname = talloc_strdup(p->mem_ctx, info->dc_unc); talloc_free(info); if (!*r->out.dcname) { return WERR_NOMEM; } return WERR_OK; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_DatabaseSync2(struct pipes_struct *p, struct netr_DatabaseSync2 *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_DatabaseRedo(struct pipes_struct *p, struct netr_DatabaseRedo *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRGetDCName(struct pipes_struct *p, struct netr_DsRGetDCName *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_LogonGetCapabilities(struct pipes_struct *p, struct netr_LogonGetCapabilities *r) { struct netlogon_creds_CredentialState *creds; NTSTATUS status; become_root(); status = netr_creds_server_step_check(p, p->mem_ctx, r->in.computer_name, r->in.credential, r->out.return_authenticator, &creds); unbecome_root(); if (!NT_STATUS_IS_OK(status)) { return status; } if (r->in.query_level != 1) { return NT_STATUS_NOT_SUPPORTED; } r->out.capabilities->server_capabilities = creds->negotiate_flags; return NT_STATUS_OK; } /**************************************************************** ****************************************************************/ WERROR _netr_NETRLOGONSETSERVICEBITS(struct pipes_struct *p, struct netr_NETRLOGONSETSERVICEBITS *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_LogonGetTrustRid(struct pipes_struct *p, struct netr_LogonGetTrustRid *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_NETRLOGONCOMPUTESERVERDIGEST(struct pipes_struct *p, struct netr_NETRLOGONCOMPUTESERVERDIGEST *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_NETRLOGONCOMPUTECLIENTDIGEST(struct pipes_struct *p, struct netr_NETRLOGONCOMPUTECLIENTDIGEST *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRGetDCNameEx(struct pipes_struct *p, struct netr_DsRGetDCNameEx *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRGetSiteName(struct pipes_struct *p, struct netr_DsRGetSiteName *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_LogonGetDomainInfo(struct pipes_struct *p, struct netr_LogonGetDomainInfo *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ WERROR _netr_ServerPasswordGet(struct pipes_struct *p, struct netr_ServerPasswordGet *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_NETRLOGONSENDTOSAM(struct pipes_struct *p, struct netr_NETRLOGONSENDTOSAM *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRAddressToSitenamesW(struct pipes_struct *p, struct netr_DsRAddressToSitenamesW *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRGetDCNameEx2(struct pipes_struct *p, struct netr_DsRGetDCNameEx2 *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN(struct pipes_struct *p, struct netr_NETRLOGONGETTIMESERVICEPARENTDOMAIN *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_NetrEnumerateTrustedDomainsEx(struct pipes_struct *p, struct netr_NetrEnumerateTrustedDomainsEx *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRAddressToSitenamesExW(struct pipes_struct *p, struct netr_DsRAddressToSitenamesExW *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsrGetDcSiteCoverageW(struct pipes_struct *p, struct netr_DsrGetDcSiteCoverageW *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsrEnumerateDomainTrusts(struct pipes_struct *p, struct netr_DsrEnumerateDomainTrusts *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsrDeregisterDNSHostRecords(struct pipes_struct *p, struct netr_DsrDeregisterDNSHostRecords *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_ServerTrustPasswordsGet(struct pipes_struct *p, struct netr_ServerTrustPasswordsGet *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ WERROR _netr_DsRGetForestTrustInformation(struct pipes_struct *p, struct netr_DsRGetForestTrustInformation *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return WERR_NOT_SUPPORTED; } /**************************************************************** ****************************************************************/ static NTSTATUS fill_forest_trust_array(TALLOC_CTX *mem_ctx, struct lsa_ForestTrustInformation *info) { struct lsa_ForestTrustRecord *e; struct pdb_domain_info *dom_info; struct lsa_ForestTrustDomainInfo *domain_info; dom_info = pdb_get_domain_info(mem_ctx); if (dom_info == NULL) { return NT_STATUS_NO_MEMORY; } info->count = 2; info->entries = talloc_array(info, struct lsa_ForestTrustRecord *, 2); if (info->entries == NULL) { return NT_STATUS_NO_MEMORY; } e = talloc(info, struct lsa_ForestTrustRecord); if (e == NULL) { return NT_STATUS_NO_MEMORY; } e->flags = 0; e->type = LSA_FOREST_TRUST_TOP_LEVEL_NAME; e->time = 0; /* so far always 0 in trces. */ e->forest_trust_data.top_level_name.string = talloc_steal(info, dom_info->dns_forest); info->entries[0] = e; e = talloc(info, struct lsa_ForestTrustRecord); if (e == NULL) { return NT_STATUS_NO_MEMORY; } /* TODO: check if disabled and set flags accordingly */ e->flags = 0; e->type = LSA_FOREST_TRUST_DOMAIN_INFO; e->time = 0; /* so far always 0 in traces. */ domain_info = &e->forest_trust_data.domain_info; domain_info->domain_sid = dom_sid_dup(info, &dom_info->sid); domain_info->dns_domain_name.string = talloc_steal(info, dom_info->dns_domain); domain_info->netbios_domain_name.string = talloc_steal(info, dom_info->name); info->entries[1] = e; return NT_STATUS_OK; } /**************************************************************** _netr_GetForestTrustInformation ****************************************************************/ NTSTATUS _netr_GetForestTrustInformation(struct pipes_struct *p, struct netr_GetForestTrustInformation *r) { NTSTATUS status; struct netlogon_creds_CredentialState *creds; struct lsa_ForestTrustInformation *info, **info_ptr; struct loadparm_context *lp_ctx; /* TODO: check server name */ lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers()); if (lp_ctx == NULL) { DEBUG(0, ("loadparm_init_s3 failed\n")); return NT_STATUS_INTERNAL_ERROR; } status = schannel_check_creds_state(p->mem_ctx, lp_ctx, r->in.computer_name, r->in.credential, r->out.return_authenticator, &creds); talloc_unlink(p->mem_ctx, lp_ctx); if (!NT_STATUS_IS_OK(status)) { return status; } if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) && (creds->secure_channel_type != SEC_CHAN_DOMAIN)) { return NT_STATUS_NOT_IMPLEMENTED; } info_ptr = talloc(p->mem_ctx, struct lsa_ForestTrustInformation *); if (!info_ptr) { return NT_STATUS_NO_MEMORY; } info = talloc_zero(info_ptr, struct lsa_ForestTrustInformation); if (!info) { return NT_STATUS_NO_MEMORY; } status = fill_forest_trust_array(p->mem_ctx, info); if (!NT_STATUS_IS_OK(status)) { return status; } *info_ptr = info; r->out.forest_trust_info = info_ptr; return NT_STATUS_OK; } /**************************************************************** ****************************************************************/ static NTSTATUS get_password_from_trustAuth(TALLOC_CTX *mem_ctx, const DATA_BLOB *trustAuth_blob, const DATA_BLOB *session_key, struct samr_Password *current_pw_enc, struct samr_Password *previous_pw_enc) { enum ndr_err_code ndr_err; struct trustAuthInOutBlob trustAuth; ndr_err = ndr_pull_struct_blob_all(trustAuth_blob, mem_ctx, &trustAuth, (ndr_pull_flags_fn_t)ndr_pull_trustAuthInOutBlob); if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { return NT_STATUS_UNSUCCESSFUL; } if (trustAuth.count != 0 && trustAuth.current.count != 0 && trustAuth.current.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) { mdfour(previous_pw_enc->hash, trustAuth.current.array[0].AuthInfo.clear.password, trustAuth.current.array[0].AuthInfo.clear.size); } else { return NT_STATUS_UNSUCCESSFUL; } arcfour_crypt_blob(current_pw_enc->hash, sizeof(current_pw_enc->hash), session_key); if (trustAuth.previous.count != 0 && trustAuth.previous.array[0].AuthType == TRUST_AUTH_TYPE_CLEAR) { mdfour(previous_pw_enc->hash, trustAuth.previous.array[0].AuthInfo.clear.password, trustAuth.previous.array[0].AuthInfo.clear.size); } else { mdfour(previous_pw_enc->hash, NULL, 0); } arcfour_crypt_blob(previous_pw_enc->hash, sizeof(previous_pw_enc->hash), session_key); return NT_STATUS_OK; } /**************************************************************** _netr_ServerGetTrustInfo ****************************************************************/ NTSTATUS _netr_ServerGetTrustInfo(struct pipes_struct *p, struct netr_ServerGetTrustInfo *r) { NTSTATUS status; struct netlogon_creds_CredentialState *creds; char *account_name; size_t account_name_last; bool trusted; struct netr_TrustInfo *trust_info; struct pdb_trusted_domain *td; DATA_BLOB trustAuth_blob; struct samr_Password *new_owf_enc; struct samr_Password *old_owf_enc; DATA_BLOB session_key; struct loadparm_context *lp_ctx; lp_ctx = loadparm_init_s3(p->mem_ctx, loadparm_s3_helpers()); if (lp_ctx == NULL) { DEBUG(0, ("loadparm_init_s3 failed\n")); return NT_STATUS_INTERNAL_ERROR; } /* TODO: check server name */ status = schannel_check_creds_state(p->mem_ctx, lp_ctx, r->in.computer_name, r->in.credential, r->out.return_authenticator, &creds); talloc_unlink(p->mem_ctx, lp_ctx); if (!NT_STATUS_IS_OK(status)) { return status; } account_name = talloc_strdup(p->mem_ctx, r->in.account_name); if (account_name == NULL) { return NT_STATUS_NO_MEMORY; } account_name_last = strlen(account_name); if (account_name_last == 0) { return NT_STATUS_INVALID_PARAMETER; } account_name_last--; if (account_name[account_name_last] == '.') { account_name[account_name_last] = '\0'; } if ((creds->secure_channel_type != SEC_CHAN_DNS_DOMAIN) && (creds->secure_channel_type != SEC_CHAN_DOMAIN)) { trusted = false; } else { trusted = true; } if (trusted) { account_name_last = strlen(account_name); if (account_name_last == 0) { return NT_STATUS_INVALID_PARAMETER; } account_name_last--; if (account_name[account_name_last] == '$') { account_name[account_name_last] = '\0'; } status = pdb_get_trusted_domain(p->mem_ctx, account_name, &td); if (!NT_STATUS_IS_OK(status)) { return status; } if (r->out.trust_info != NULL) { trust_info = talloc_zero(p->mem_ctx, struct netr_TrustInfo); if (trust_info == NULL) { return NT_STATUS_NO_MEMORY; } trust_info->count = 1; trust_info->data = talloc_array(trust_info, uint32_t, 1); if (trust_info->data == NULL) { return NT_STATUS_NO_MEMORY; } trust_info->data[0] = td->trust_attributes; *r->out.trust_info = trust_info; } new_owf_enc = talloc_zero(p->mem_ctx, struct samr_Password); old_owf_enc = talloc_zero(p->mem_ctx, struct samr_Password); if (new_owf_enc == NULL || old_owf_enc == NULL) { return NT_STATUS_NO_MEMORY; } /* TODO: which trustAuth shall we use if we have in/out trust or do they have to * be equal ? */ if (td->trust_direction & NETR_TRUST_FLAG_INBOUND) { trustAuth_blob = td->trust_auth_incoming; } else if (td->trust_direction & NETR_TRUST_FLAG_OUTBOUND) { trustAuth_blob = td->trust_auth_outgoing; } session_key.data = creds->session_key; session_key.length = sizeof(creds->session_key); status = get_password_from_trustAuth(p->mem_ctx, &trustAuth_blob, &session_key, new_owf_enc, old_owf_enc); if (!NT_STATUS_IS_OK(status)) { return status; } r->out.new_owf_password = new_owf_enc; r->out.old_owf_password = old_owf_enc; } else { /* TODO: look for machine password */ r->out.new_owf_password = NULL; r->out.old_owf_password = NULL; return NT_STATUS_NOT_IMPLEMENTED; } return NT_STATUS_OK; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_Unused47(struct pipes_struct *p, struct netr_Unused47 *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return NT_STATUS_NOT_IMPLEMENTED; } /**************************************************************** ****************************************************************/ NTSTATUS _netr_DsrUpdateReadOnlyServerDnsRecords(struct pipes_struct *p, struct netr_DsrUpdateReadOnlyServerDnsRecords *r) { p->fault_state = DCERPC_FAULT_OP_RNG_ERROR; return NT_STATUS_NOT_IMPLEMENTED; }