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From 8d7edcaf79ce5a439f40ca50c020a097cbe8d8eb Mon Sep 17 00:00:00 2001
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From: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
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Date: Wed, 25 Nov 2015 16:31:39 +0100
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Subject: [PATCH] Fix not publishing entries if a probing interface is removed.
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If an interface is no longer relevant for mDNS while an announcer was
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probing on this interface, the announcer is removed but the n_probing
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counter of the entry group is not updated. So n_probing would never
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reach zero and the entry group would stay forever in the REGISTERING
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state. If the entry group is for a host resource record, the daemon
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could stay in the registering phase forever and would not publish any
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service.
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Fix that by decrementing group->n_probing when removing an announcer
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in the PROBING state. Also handle the case where the entry group was
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waiting for the deleted announcer to become registered.
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(cherry-picked from PR https://github.com/lathiat/avahi/pull/39)
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Resolves: #1222646
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---
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avahi-core/announce.c | 6 ++++++
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1 file changed, 6 insertions(+)
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diff --git a/avahi-core/announce.c b/avahi-core/announce.c
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index ccdbf15..05053cf 100644
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--- a/avahi-core/announce.c
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+++ b/avahi-core/announce.c
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@@ -44,6 +44,12 @@ static void remove_announcer(AvahiServer *s, AvahiAnnouncer *a) {
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AVAHI_LLIST_REMOVE(AvahiAnnouncer, by_interface, a->interface->announcers, a);
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AVAHI_LLIST_REMOVE(AvahiAnnouncer, by_entry, a->entry->announcers, a);
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+ if (a->state == AVAHI_PROBING && a->entry->group) {
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+ assert(a->entry->group->n_probing);
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+ a->entry->group->n_probing--;
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+ avahi_s_entry_group_check_probed(a->entry->group, 1);
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+ }
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+
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avahi_free(a);
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}
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--
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2.7.4
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