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-rw-r--r--source3/auth/auth_unix.c107
1 files changed, 107 insertions, 0 deletions
diff --git a/source3/auth/auth_unix.c b/source3/auth/auth_unix.c
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+++ b/source3/auth/auth_unix.c
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+/*
+ Unix SMB/CIFS implementation.
+ Password and authentication handling
+ Copyright (C) Andrew Bartlett 2001
+
+ 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 "auth.h"
+#include "system/passwd.h"
+#include "../lib/tsocket/tsocket.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_AUTH
+
+/** Check a plaintext username/password
+ *
+ * Cannot deal with an encrypted password in any manner whatsoever,
+ * unless the account has a null password.
+ **/
+
+static NTSTATUS check_unix_security(const struct auth_context *auth_context,
+ void *my_private_data,
+ TALLOC_CTX *mem_ctx,
+ const struct auth_usersupplied_info *user_info,
+ struct auth_serversupplied_info **server_info)
+{
+ NTSTATUS nt_status;
+ struct passwd *pass = NULL;
+ const char *rhost;
+
+ DEBUG(10, ("Check auth for: [%s]\n", user_info->mapped.account_name));
+
+ if (tsocket_address_is_inet(user_info->remote_host, "ip")) {
+ rhost = tsocket_address_inet_addr_string(user_info->remote_host,
+ talloc_tos());
+ if (rhost == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ } else {
+ rhost = "127.0.0.1";
+ }
+
+ become_root();
+ pass = Get_Pwnam_alloc(talloc_tos(), user_info->mapped.account_name);
+
+ /** @todo This call assumes a ASCII password, no charset transformation is
+ done. We may need to revisit this **/
+ nt_status = pass_check(pass,
+ pass ? pass->pw_name : user_info->mapped.account_name,
+ rhost,
+ user_info->password.plaintext,
+ true);
+
+ unbecome_root();
+
+ if (NT_STATUS_IS_OK(nt_status)) {
+ if (pass != NULL) {
+ nt_status = make_server_info_pw(mem_ctx,
+ pass->pw_name,
+ pass,
+ server_info);
+ } else {
+ /* we need to do something more useful here */
+ nt_status = NT_STATUS_NO_SUCH_USER;
+ }
+ }
+
+ TALLOC_FREE(pass);
+ return nt_status;
+}
+
+/* module initialisation */
+static NTSTATUS auth_init_unix(
+ struct auth_context *auth_context,
+ const char* param,
+ struct auth_methods **auth_method)
+{
+ struct auth_methods *result;
+
+ result = talloc_zero(auth_context, struct auth_methods);
+ if (result == NULL) {
+ return NT_STATUS_NO_MEMORY;
+ }
+ result->name = "unix";
+ result->auth = check_unix_security;
+
+ *auth_method = result;
+ return NT_STATUS_OK;
+}
+
+NTSTATUS auth_unix_init(TALLOC_CTX *mem_ctx)
+{
+ return smb_register_auth(AUTH_INTERFACE_VERSION, "unix", auth_init_unix);
+}