Introduce a new authentication backend auth_onefs_wb
authorDan Sledz <dan.sledz@isilon.com>
Fri, 13 Feb 2009 20:24:22 +0000 (12:24 -0800)
committerSteven Danneman <steven.danneman@isilon.com>
Sat, 21 Feb 2009 03:39:07 +0000 (19:39 -0800)
This new backend is custom tailored to onefs' unique requirements:
1) No fallback logic
2) Does not validate the domain of the user
3) Handles unencrypted passwords

source3/Makefile.in
source3/auth/auth_onefs_wb.c [new file with mode: 0644]
source3/configure.in

index 98ed810f24d06165b06e643053bfa53eb14e53ba..a0bd4ab3034ac3e28d0fdcf85e2fbe24eb8d2d07 100644 (file)
@@ -685,6 +685,7 @@ AUTH_SAM_OBJ = auth/auth_sam.o
 AUTH_SERVER_OBJ = auth/auth_server.o
 AUTH_UNIX_OBJ = auth/auth_unix.o
 AUTH_WINBIND_OBJ = auth/auth_winbind.o
+AUTH_ONEFS_WB_OBJ = auth/auth_onefs_wb.o
 AUTH_SCRIPT_OBJ = auth/auth_script.o
 AUTH_NETLOGOND_OBJ = auth/auth_netlogond.o
 
@@ -2343,6 +2344,10 @@ bin/winbind.@SHLIBEXT@: $(BINARY_PREREQS) $(AUTH_WINBIND_OBJ)
        @echo "Building plugin $@"
        @$(SHLD_MODULE) $(AUTH_WINBIND_OBJ)
 
+bin/onefs_wb.@SHLIBEXT@: $(BINARY_PREREQS) $(AUTH_ONEFS_WB_OBJ)
+       @echo "Building plugin $@"
+       @$(SHLD_MODULE) $(AUTH_ONEFS_WB_OBJ)
+
 bin/unix.@SHLIBEXT@: $(BINARY_PREREQS) $(AUTH_UNIX_OBJ)
        @echo "Building plugin $@"
        @$(SHLD_MODULE) $(AUTH_UNIX_OBJ)
diff --git a/source3/auth/auth_onefs_wb.c b/source3/auth/auth_onefs_wb.c
new file mode 100644 (file)
index 0000000..49de696
--- /dev/null
@@ -0,0 +1,134 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   Winbind authentication mechnism, customized for onefs
+
+   Copyright (C) Tim Potter 2000
+   Copyright (C) Andrew Bartlett 2001 - 2002
+   Copyright (C) Dan Sledz 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 <http://www.gnu.org/licenses/>.
+*/
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_AUTH
+
+/* Authenticate a user with a challenge/response */
+
+static NTSTATUS check_onefs_wb_security(const struct auth_context *auth_context,
+                                      void *my_private_data,
+                                      TALLOC_CTX *mem_ctx,
+                                      const auth_usersupplied_info *user_info,
+                                      auth_serversupplied_info **server_info)
+{
+       NTSTATUS nt_status;
+       wbcErr wbc_status;
+       struct wbcAuthUserParams params;
+       struct wbcAuthUserInfo *info = NULL;
+       struct wbcAuthErrorInfo *err = NULL;
+
+       if (!user_info || !auth_context || !server_info) {
+               return NT_STATUS_INVALID_PARAMETER;
+       }
+       /* Send off request */
+
+       params.account_name     = user_info->smb_name;
+       params.domain_name      = user_info->domain;
+       params.workstation_name = user_info->wksta_name;
+
+       params.flags            = 0;
+       params.parameter_control= user_info->logon_parameters;
+
+       /* Handle plaintext */
+       if (!user_info->encrypted) {
+               DEBUG(3,("Checking plaintext password for %s.\n",
+                        user_info->internal_username));
+               params.level = WBC_AUTH_USER_LEVEL_PLAIN;
+
+               params.password.plaintext = user_info->plaintext_password.data;
+       } else {
+               DEBUG(3,("Checking encrypted password for %s.\n",
+                        user_info->internal_username));
+               params.level = WBC_AUTH_USER_LEVEL_RESPONSE;
+
+               memcpy(params.password.response.challenge,
+                   auth_context->challenge.data,
+                   sizeof(params.password.response.challenge));
+
+               params.password.response.nt_length = user_info->nt_resp.length;
+               params.password.response.nt_data = user_info->nt_resp.data;
+               params.password.response.lm_length = user_info->lm_resp.length;
+               params.password.response.lm_data = user_info->lm_resp.data;
+
+       }
+
+       /* we are contacting the privileged pipe */
+       become_root();
+       wbc_status = wbcAuthenticateUserEx(&params, &info, &err);
+       unbecome_root();
+
+       if (!WBC_ERROR_IS_OK(wbc_status)) {
+               DEBUG(10,("wbcAuthenticateUserEx failed (%d): %s\n",
+                       wbc_status, wbcErrorString(wbc_status)));
+       }
+
+       if (wbc_status == WBC_ERR_NO_MEMORY) {
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       if (wbc_status == WBC_ERR_AUTH_ERROR) {
+               nt_status = NT_STATUS(err->nt_status);
+               wbcFreeMemory(err);
+               return nt_status;
+       }
+
+       if (!WBC_ERROR_IS_OK(wbc_status)) {
+               return NT_STATUS_LOGON_FAILURE;
+       }
+
+       DEBUG(10,("wbcAuthenticateUserEx succeeded\n"));
+
+       nt_status = make_server_info_wbcAuthUserInfo(mem_ctx,
+                                                    user_info->smb_name,
+                                                    user_info->domain,
+                                                    info, server_info);
+       wbcFreeMemory(info);
+       if (!NT_STATUS_IS_OK(nt_status)) {
+               return nt_status;
+       }
+
+       (*server_info)->nss_token |= user_info->was_mapped;
+
+        return nt_status;
+}
+
+/* module initialisation */
+static NTSTATUS auth_init_onefs_wb(struct auth_context *auth_context, const char *param, auth_methods **auth_method)
+{
+       if (!make_auth_methods(auth_context, auth_method)) {
+               return NT_STATUS_NO_MEMORY;
+       }
+
+       (*auth_method)->name = "onefs_wb";
+       (*auth_method)->auth = check_onefs_wb_security;
+
+       return NT_STATUS_OK;
+}
+
+NTSTATUS auth_onefs_wb_init(void)
+{
+       return smb_register_auth(AUTH_INTERFACE_VERSION, "onefs_wb", auth_init_onefs_wb);
+}
index 9320fb64e474de9a460305ac705e32e83f78b4e5..41140aed345bd26eb81b82f931e280bded3f0ac3 100644 (file)
@@ -1104,6 +1104,7 @@ echo $samba_cv_HAVE_ONEFS
 if test x"$samba_cv_HAVE_ONEFS" = x"yes"; then
     AC_DEFINE(HAVE_ONEFS,1,[Whether building on Isilon OneFS])
     default_shared_modules="$default_shared_modules vfs_onefs vfs_onefs_shadow_copy perfcount_onefs"
+    default_static_modules="$default_static_modules auth_onefs_wb"
     ONEFS_LIBS="-lisi_acl -lisi_ecs -lisi_event -lisi_util"
     # Need to also add general libs for oplocks support
     save_LIBS="$save_LIBS -lisi_ecs -lisi_event -lisi_util -ldevstat"
@@ -6187,6 +6188,7 @@ SMB_SUBSYSTEM(CHARSET,lib/iconv.o)
 SMB_MODULE(auth_sam, \$(AUTH_SAM_OBJ), "bin/sam.$SHLIBEXT", AUTH)
 SMB_MODULE(auth_unix, \$(AUTH_UNIX_OBJ), "bin/unix.$SHLIBEXT", AUTH)
 SMB_MODULE(auth_winbind, \$(AUTH_WINBIND_OBJ), "bin/winbind.$SHLIBEXT", AUTH)
+SMB_MODULE(auth_onefs_wb, \$(AUTH_ONEFS_WB_OBJ), "bin/onefs_wb.$SHLIBEXT", AUTH)
 SMB_MODULE(auth_server, \$(AUTH_SERVER_OBJ), "bin/smbserver.$SHLIBEXT", AUTH)
 SMB_MODULE(auth_domain, \$(AUTH_DOMAIN_OBJ), "bin/domain.$SHLIBEXT", AUTH)
 SMB_MODULE(auth_builtin, \$(AUTH_BUILTIN_OBJ), "bin/builtin.$SHLIBEXT", AUTH)