svn commit: samba r5985 - in branches/SAMBA_4_0/source/auth: .
abartlet at samba.org
abartlet at samba.org
Wed Mar 23 00:15:47 GMT 2005
Author: abartlet
Date: 2005-03-23 00:15:41 +0000 (Wed, 23 Mar 2005)
New Revision: 5985
WebSVN: http://websvn.samba.org/cgi-bin/viewcvs.cgi?view=rev&root=samba&rev=5985
Log:
Actually adding auth_domain.c in -r 5983 would probably have been a
good idea....
Andrew Bartlett
Added:
branches/SAMBA_4_0/source/auth/auth_domain.c
Changeset:
Added: branches/SAMBA_4_0/source/auth/auth_domain.c
===================================================================
--- branches/SAMBA_4_0/source/auth/auth_domain.c 2005-03-23 00:07:21 UTC (rev 5984)
+++ branches/SAMBA_4_0/source/auth/auth_domain.c 2005-03-23 00:15:41 UTC (rev 5985)
@@ -0,0 +1,199 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ Authenticate a user to a domain controller
+
+ Copyright (C) Andrew Bartlett <abartlet at samba.org> 2004-2005
+ Copyright (C) Andrew Tridgell 2004
+
+ 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 2 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, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+#include "librpc/gen_ndr/ndr_netlogon.h"
+#include "include/secrets.h"
+#include "lib/ldb/include/ldb.h"
+#include "auth/auth.h"
+
+/* Authenticate a user with a challenge/response */
+static NTSTATUS domain_check_password(struct auth_method_context *ctx,
+ TALLOC_CTX *mem_ctx,
+ const struct auth_usersupplied_info *user_info,
+ struct auth_serversupplied_info **server_info)
+{
+ NTSTATUS status;
+
+ struct dcerpc_pipe *p;
+ struct dcerpc_binding *b;
+ struct netr_LogonSamLogon r;
+ struct netr_Authenticator auth, auth2;
+ struct netr_NetworkInfo ninfo;
+ const char *machine_account;
+ const char *password;
+ struct ldb_context *ldb;
+ int ldb_ret;
+ struct ldb_message **msgs;
+ const char *base_dn = SECRETS_PRIMARY_DOMAIN_DN;
+ const char *attrs[] = {
+ "secret",
+ "samAccountName",
+ NULL
+ };
+
+ struct creds_CredentialState *creds;
+ struct cli_credentials *credentials;
+
+ const char **bindings = lp_passwordserver();
+ const char *binding;
+
+ if (bindings && bindings[0]) {
+ binding = bindings[0];
+ }
+
+ credentials = cli_credentials_init(mem_ctx);
+
+ /* Fetch join password */
+
+ /* Local secrets are stored in secrets.ldb */
+ ldb = secrets_db_connect(mem_ctx);
+ if (!ldb) {
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+
+ /* search for the secret record */
+ ldb_ret = samdb_search(ldb,
+ mem_ctx, base_dn, &msgs, attrs,
+ "(&(flatname=%s)(objectclass=primaryDomain))",
+ lp_workgroup());
+ if (ldb_ret == 0) {
+ DEBUG(1, ("Could not find join record to domain: %s\n",
+ lp_workgroup()));
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ } else if (ldb_ret != 1) {
+ DEBUG(1, ("Found %d records matching flatname=%s under DN %s\n", ldb_ret,
+ lp_workgroup(), base_dn));
+ return NT_STATUS_INTERNAL_ERROR;
+ }
+
+ password = ldb_msg_find_string(msgs[0], "secret", NULL);
+ if (!password) {
+ DEBUG(1, ("Could not find 'secret' in join record to domain: %s\n",
+ lp_workgroup()));
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+
+ machine_account = ldb_msg_find_string(msgs[0], "samAccountName", NULL);
+ if (!machine_account) {
+ DEBUG(1, ("Could not find 'samAccountName' in join record to domain: %s\n",
+ lp_workgroup()));
+ return NT_STATUS_CANT_ACCESS_DOMAIN_INFO;
+ }
+
+ cli_credentials_set_domain(credentials, lp_workgroup(), CRED_SPECIFIED);
+ cli_credentials_set_username(credentials, machine_account, CRED_SPECIFIED);
+ cli_credentials_set_password(credentials, password, CRED_SPECIFIED);
+
+ cli_credentials_guess(credentials);
+
+ /* Connect to DC (take a binding string for now) */
+
+ status = dcerpc_parse_binding(mem_ctx, binding, &b);
+ if (!NT_STATUS_IS_OK(status)) {
+ printf("Bad binding string %s\n", binding);
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
+ /* We like schannel */
+ b->flags &= ~DCERPC_AUTH_OPTIONS;
+ b->flags |= DCERPC_SCHANNEL_WORKSTATION | DCERPC_SEAL | DCERPC_SCHANNEL_128;
+
+ /* Setup schannel */
+ status = dcerpc_pipe_connect_b(mem_ctx, &p, b,
+ DCERPC_NETLOGON_UUID,
+ DCERPC_NETLOGON_VERSION,
+ credentials);
+
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ /* call domain logon */
+
+ status = dcerpc_schannel_creds(p->conn->security_state.generic_state, mem_ctx, &creds);
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ ninfo.identity_info.domain_name.string = user_info->domain_name;
+ ninfo.identity_info.parameter_control = 0;
+ ninfo.identity_info.logon_id_low = 0;
+ ninfo.identity_info.logon_id_high = 0;
+ ninfo.identity_info.account_name.string = user_info->account_name;
+ ninfo.identity_info.workstation.string = user_info->workstation_name;
+ memcpy(ninfo.challenge, ctx->auth_ctx->challenge.data.data, sizeof(ninfo.challenge));
+
+ ninfo.nt.length = user_info->nt_resp.length;
+ ninfo.nt.data = user_info->nt_resp.data;
+ ninfo.lm.length = user_info->lm_resp.length;
+ ninfo.lm.data = user_info->lm_resp.data;
+
+ r.in.server_name = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(p));
+ r.in.workstation = creds->computer_name;
+ r.in.credential = &auth;
+ r.in.return_authenticator = &auth2;
+ r.in.logon_level = 2;
+ r.in.logon.network = &ninfo;
+ r.in.validation_level = 3;
+
+ ZERO_STRUCT(auth2);
+ creds_client_authenticator(creds, &auth);
+
+ status = dcerpc_netr_LogonSamLogon(p, mem_ctx, &r);
+
+ if (!creds_client_check(creds, &r.out.return_authenticator->cred)) {
+ DEBUG(1, ("Credential chaining failed\n"));
+ return NT_STATUS_ACCESS_DENIED;
+ }
+
+ /* make server info */
+
+ if (!NT_STATUS_IS_OK(status)) {
+ return status;
+ }
+
+ status = make_server_info_netlogon_validation(mem_ctx,
+ user_info->account_name,
+ r.in.validation_level, &r.out.validation,
+ server_info);
+ return status;
+}
+
+static const struct auth_operations domain_ops = {
+ .name = "domain",
+ .get_challenge = auth_get_challenge_not_implemented,
+ .check_password = domain_check_password
+};
+
+NTSTATUS auth_domain_init(void)
+{
+ NTSTATUS ret;
+
+ ret = auth_register(&domain_ops);
+ if (!NT_STATUS_IS_OK(ret)) {
+ DEBUG(0,("Failed to register 'domain' auth backend!\n"));
+ return ret;
+ }
+ return ret;
+}
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