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authorStefano Brivio <sbrivio@redhat.com>2021-07-26 15:26:36 +0200
committerStefano Brivio <sbrivio@redhat.com>2021-07-26 17:43:10 +0200
commit9663378d6d6dcd8275d60b826356cc4be0538231 (patch)
tree510ca04c778d9f03033cd33688da7b58ccb65ce0 /doc/demo.sh
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icmp: Work around possible failure on bind() due to e.g. broken SELinux policy
If we can't bind() ping sockets, the echo identifier sent out from the socket won't be the original one seen from the tap. Binding a ping socket doesn't require any security capability, but it might still fail due to a broken SELinux policy, see for example: https://bugzilla.redhat.com/show_bug.cgi?id=1848929 Track the ICMP echo identifier as part of the epoll reference for the socket and replace it in the reply on mismatch. We won't send out the original identifier as sent from the guest, but still better than missing replies. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
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