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Reorder the nsupdate shutdown code to shutdown managers early

Browse source 
If the dns_request send callback is delayed, the dst API would get
deinitialized and then the detach from the tsig key would cause an
assertion failure.

Shutdown the isc_managers early, and only then dereference the dst
objects when cleaning up the resources used by nsupdate.

(cherry picked from commit be34b1c535)
This commit is contained in:
Ondřej Surý 2022-03-03 14:44:28 +01:00
parent c6f8e68dd8
commit 2e461b9012
1 changed files with 9 additions and 9 deletions
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18
bin/nsupdate/nsupdate.c
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@ -719,12 +719,6 @@ doshutdown(void) {
dns_message_detach(&updatemsg);
}
if (is_dst_up) {
ddebug("Destroy DST lib");
dst_lib_destroy();
is_dst_up = false;
}
ddebug("Destroying request manager");
dns_requestmgr_detach(&requestmgr);
@ -3305,6 +3299,9 @@ cleanup(void) {
}
UNLOCK(&answer_lock);
ddebug("Shutting down managers");
isc_managers_destroy(&netmgr, &taskmgr, NULL);
#if HAVE_GSSAPI
if (tsigkey != NULL) {
ddebug("detach tsigkey x%p", tsigkey);
@ -3320,9 +3317,6 @@ cleanup(void) {
dst_key_free(&sig0key);
}
ddebug("Shutting down managers");
isc_managers_destroy(&netmgr, &taskmgr, NULL);
ddebug("Destroying event");
isc_event_free(&global_event);
@ -3356,6 +3350,12 @@ cleanup(void) {
isc_mem_destroy(&gmctx);
isc_mutex_destroy(&answer_lock);
if (is_dst_up) {
ddebug("Destroy DST lib");
dst_lib_destroy();
is_dst_up = false;
}
}
static void