62 lines
1.9 KiB
Diff
62 lines
1.9 KiB
Diff
From 5564dd9f224a7354a55c8f57ac0da9c2e58b18e5 Mon Sep 17 00:00:00 2001
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From: Petr Vorel <pvorel@suse.cz>
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Date: Fri, 24 May 2024 00:05:53 +0200
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Subject: [PATCH 2/2] arping: Fix unsolicited ARP regressions on -c > 1
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4db1de6 tried to fix a regression 1 sec delay due poll() for unsolicited
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ARP, .i.e. -A and -U (introduced in 67e070d, reported as issue #536).
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But skipping the while loop entirely introduced another regression for
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-A and -U, which behave like -c1 (sending *always* only a single packet).
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Fixing it by checking in while loop and comparing also count (as it was
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done in 67e070d before the rewrite).
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NOTE: use exit_loop with continue instead of simple break to keep things
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consistent.
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Fixes: 4db1de6 ("arping: Fix 1s delay on exit for unsolicited arpings")
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Fixes: 67e070d ("arping: use signalfd() and timerfd() rather than signals")
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Fixes: https://github.com/iputils/iputils/issues/536
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Closes: https://github.com/iputils/iputils/pull/543
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Reported-by: David Bond <dbond@suse.com>
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Reviewed-by: Andrea Cervesato <andrea.cervesato@suse.com>
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Reviewed-by: Cyril Hrubis <chrubis@suse.cz>
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Signed-off-by: Petr Vorel <pvorel@suse.cz>
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(cherry picked from commit 5de892d15eea467775420c4fd641df229f024259)
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---
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arping.c | 8 +++++++-
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1 file changed, 7 insertions(+), 1 deletion(-)
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diff --git a/arping.c b/arping.c
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index 8929f8f..ee9da1d 100644
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--- a/arping.c
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+++ b/arping.c
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@@ -749,10 +749,15 @@ static int event_loop(struct run_state *ctl)
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pfds[POLLFD_SOCKET].events = POLLIN | POLLERR | POLLHUP;
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send_pack(ctl);
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- while (!(exit_loop || ctl->unsolicited)) {
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+ while (!exit_loop) {
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int ret;
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size_t i;
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+ if ((ctl->sent == ctl->count) && ctl->unsolicited) {
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+ exit_loop = 1;
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+ continue;
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+ }
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+
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ret = poll(pfds, POLLFD_COUNT, -1);
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if (ret <= 0) {
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if (errno == EAGAIN)
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@@ -813,6 +818,7 @@ static int event_loop(struct run_state *ctl)
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}
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}
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}
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+
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close(sfd);
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close(tfd);
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freeifaddrs(ctl->ifa0);
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--
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2.46.0
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