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For plugin events, set the sudo event base for setbase(NULL).

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This makes it possible for a plugin to change the event base
to a local one and then reset it back to its original value.
This commit is contained in:
Todd C. Miller
2020-02-02 12:37:11 -07:00
parent 49e7e4ecd5
commit 658702b6d4
2 changed files with 7 additions and 11 deletions
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15
plugins/sudoers/iolog_client.c
View File

@@ -1122,16 +1122,11 @@ handle_server_hello(ServerHello *msg, struct client_closure *closure)
__func__, n + 1, msg->servers[n]);
}
/* Move read event back to main sudo event loop. */
closure->read_ev->del(closure->read_ev);
if (closure->read_ev->set(closure->read_ev, closure->sock,
SUDO_PLUGIN_EV_READ|SUDO_PLUGIN_EV_PERSIST,
server_msg_cb, closure) == -1) {
sudo_warn(U_("unable to add event to queue"));
debug_return_bool(false);
}
/* Server messages may occur at arbitrary times so no timeout. */
/*
* Move read event back to main sudo event loop.
* Server messages may occur at any time, so no timeout.
*/
closure->read_ev->setbase(closure->read_ev, NULL);
if (closure->read_ev->add(closure->read_ev, NULL) == -1) {
sudo_warn(U_("unable to add event to queue"));
debug_return_bool(false);

3
src/sudo.c
View File

@@ -1807,6 +1807,7 @@ plugin_event_loopbreak(struct sudo_plugin_event *pev)
/*
* Reset the event base of a struct sudo_plugin_event.
* The event is removed from the old base (if any) first.
* A NULL base can be used to set the default sudo event base.
*/
static void
plugin_event_setbase(struct sudo_plugin_event *pev, void *base)
@@ -1817,7 +1818,7 @@ plugin_event_setbase(struct sudo_plugin_event *pev, void *base)
ev_int = __containerof(pev, struct sudo_plugin_event_int, public);
if (ev_int->private.base != NULL)
sudo_ev_del(ev_int->private.base, &ev_int->private);
ev_int->private.base = base;
ev_int->private.base = base ? base : sudo_event_base;
debug_return;
}