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-rw-r--r--source4/smbd/process_standard.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/source4/smbd/process_standard.c b/source4/smbd/process_standard.c
index 137e0a7ce0..730e185e5a 100644
--- a/source4/smbd/process_standard.c
+++ b/source4/smbd/process_standard.c
@@ -44,15 +44,31 @@ static int none_setproctitle(const char *fmt, ...)
}
#endif
+/* we hold a pipe open in the parent, and the any child
+ processes wait for EOF on that pipe. This ensures that
+ children die when the parent dies */
+static int child_pipe[2];
+
/*
called when the process model is selected
*/
static void standard_model_init(struct tevent_context *ev)
{
+ pipe(child_pipe);
signal(SIGCHLD, SIG_IGN);
}
/*
+ handle EOF on the child pipe
+*/
+static void standard_pipe_handler(struct tevent_context *event_ctx, struct tevent_fd *fde,
+ uint16_t flags, void *private_data)
+{
+ DEBUG(10,("Child %d exiting\n", (int)getpid()));
+ exit(0);
+}
+
+/*
called when a listening socket becomes readable.
*/
static void standard_accept_connection(struct tevent_context *ev,
@@ -114,6 +130,10 @@ static void standard_accept_connection(struct tevent_context *ev,
DEBUG(0,("standard_accept_connection: tdb_reopen_all failed.\n"));
}
+ tevent_add_fd(ev2, ev2, child_pipe[0], TEVENT_FD_READ,
+ standard_pipe_handler, NULL);
+ close(child_pipe[1]);
+
/* Ensure that the forked children do not expose identical random streams */
set_need_random_reseed();
@@ -177,6 +197,10 @@ static void standard_new_task(struct tevent_context *ev,
DEBUG(0,("standard_accept_connection: tdb_reopen_all failed.\n"));
}
+ tevent_add_fd(ev2, ev2, child_pipe[0], TEVENT_FD_READ,
+ standard_pipe_handler, NULL);
+ close(child_pipe[1]);
+
/* Ensure that the forked children do not expose identical random streams */
set_need_random_reseed();