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Diffstat (limited to 'source4/nsswitch/winbindd_dual.c')
-rw-r--r--source4/nsswitch/winbindd_dual.c210
1 files changed, 0 insertions, 210 deletions
diff --git a/source4/nsswitch/winbindd_dual.c b/source4/nsswitch/winbindd_dual.c
deleted file mode 100644
index 207757bcea..0000000000
--- a/source4/nsswitch/winbindd_dual.c
+++ /dev/null
@@ -1,210 +0,0 @@
-/*
- Unix SMB/CIFS implementation.
-
- Winbind background daemon
-
- Copyright (C) Andrew Tridgell 2002
-
- 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.
-*/
-
-/*
- the idea of the optional dual daemon mode is ot prevent slow domain
- responses from clagging up the rest of the system. When in dual
- daemon mode winbindd always responds to requests from cache if the
- request is in cache, and if the cached answer is stale then it asks
- the "dual daemon" to update the cache for that request
-
- */
-
-#include "winbindd.h"
-
-#undef DBGC_CLASS
-#define DBGC_CLASS DBGC_WINBIND
-
-extern BOOL opt_dual_daemon;
-BOOL background_process = False;
-int dual_daemon_pipe = -1;
-
-
-/* a list of requests ready to be sent to the dual daemon */
-struct dual_list {
- struct dual_list *next;
- char *data;
- int length;
- int offset;
-};
-
-static struct dual_list *dual_list;
-static struct dual_list *dual_list_end;
-
-/*
- setup a select() including the dual daemon pipe
- */
-int dual_select_setup(fd_set *fds, int maxfd)
-{
- if (dual_daemon_pipe == -1 ||
- !dual_list) {
- return maxfd;
- }
-
- FD_SET(dual_daemon_pipe, fds);
- if (dual_daemon_pipe > maxfd) {
- maxfd = dual_daemon_pipe;
- }
- return maxfd;
-}
-
-
-/*
- a hook called from the main winbindd select() loop to handle writes
- to the dual daemon pipe
-*/
-void dual_select(fd_set *fds)
-{
- int n;
-
- if (dual_daemon_pipe == -1 ||
- !dual_list ||
- !FD_ISSET(dual_daemon_pipe, fds)) {
- return;
- }
-
- n = sys_write(dual_daemon_pipe,
- &dual_list->data[dual_list->offset],
- dual_list->length - dual_list->offset);
-
- if (n <= 0) {
- /* the pipe is dead! fall back to normal operation */
- dual_daemon_pipe = -1;
- return;
- }
-
- dual_list->offset += n;
-
- if (dual_list->offset == dual_list->length) {
- struct dual_list *next;
- next = dual_list->next;
- free(dual_list->data);
- free(dual_list);
- dual_list = next;
- if (!dual_list) {
- dual_list_end = NULL;
- }
- }
-}
-
-/*
- send a request to the background daemon
- this is called for stale cached entries
-*/
-void dual_send_request(struct winbindd_cli_state *state)
-{
- struct dual_list *list;
-
- if (!background_process) return;
-
- list = malloc(sizeof(*list));
- if (!list) return;
-
- list->next = NULL;
- list->data = memdup(&state->request, sizeof(state->request));
- list->length = sizeof(state->request);
- list->offset = 0;
-
- if (!dual_list_end) {
- dual_list = list;
- dual_list_end = list;
- } else {
- dual_list_end->next = list;
- dual_list_end = list;
- }
-
- background_process = False;
-}
-
-
-/*
-the main dual daemon
-*/
-void do_dual_daemon(void)
-{
- int fdpair[2];
- struct winbindd_cli_state state;
-
- if (pipe(fdpair) != 0) {
- return;
- }
-
- ZERO_STRUCT(state);
- state.pid = getpid();
-
- dual_daemon_pipe = fdpair[1];
- state.sock = fdpair[0];
-
- if (fork() != 0) {
- close(fdpair[0]);
- return;
- }
- close(fdpair[1]);
-
- if (!winbind_setup_common())
- _exit(0);
-
- dual_daemon_pipe = -1;
- opt_dual_daemon = False;
-
- while (1) {
- /* free up any talloc memory */
- lp_talloc_free();
- main_loop_talloc_free();
-
- /* fetch a request from the main daemon */
- winbind_client_read(&state);
-
- if (state.finished) {
- /* we lost contact with our parent */
- exit(0);
- }
-
- /* process full rquests */
- if (state.read_buf_len == sizeof(state.request)) {
- DEBUG(4,("dual daemon request %d\n", (int)state.request.cmd));
-
- /* special handling for the stateful requests */
- switch (state.request.cmd) {
- case WINBINDD_GETPWENT:
- winbindd_setpwent(&state);
- break;
-
- case WINBINDD_GETGRENT:
- case WINBINDD_GETGRLST:
- winbindd_setgrent(&state);
- break;
- default:
- break;
- }
-
- winbind_process_packet(&state);
- SAFE_FREE(state.response.extra_data);
-
- free_getent_state(state.getpwent_state);
- free_getent_state(state.getgrent_state);
- state.getpwent_state = NULL;
- state.getgrent_state = NULL;
- }
- }
-}
-