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Leonardo Bras 5258a7e2c0 QIOChannelSocket: Add support for MSG_ZEROCOPY + IPV6 
For using MSG_ZEROCOPY, there are two steps:
1 - io_writev() the packet, which enqueues the packet for sending, and
2 - io_flush(), which gets confirmation that all packets got correctly sent

Currently, if MSG_ZEROCOPY is used to send packets over IPV6, no error will
be reported in (1), but it will fail in the first time (2) happens.

This happens because (2) currently checks for cmsg_level & cmsg_type
associated with IPV4 only, before reporting any error.

Add checks for cmsg_level & cmsg_type associated with IPV6, and thus enable
support for MSG_ZEROCOPY + IPV6

Fixes: 2bc58ffc29 ("QIOChannelSocket: Implement io_writev zero copy flag & io_flush for CONFIG_LINUX")
Signed-off-by: Leonardo Bras <leobras@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2022-08-05 16:18:15 +01:00
..
channel-buffer.c QIOChannel: Add flags on io_writev and introduce io_flush callback 2022-05-16 13:56:24 +01:00
channel-command.c QIOChannel: Add flags on io_writev and introduce io_flush callback 2022-05-16 13:56:24 +01:00
channel-file.c QIOChannel: Add flags on io_writev and introduce io_flush callback 2022-05-16 13:56:24 +01:00
channel-null.c io: add a QIOChannelNull equivalent to /dev/null 2022-06-22 18:11:21 +01:00
channel-socket.c QIOChannelSocket: Add support for MSG_ZEROCOPY + IPV6 2022-08-05 16:18:15 +01:00
channel-tls.c QIOChannel: Add flags on io_writev and introduce io_flush callback 2022-05-16 13:56:24 +01:00
channel-util.c io: Fix Lesser GPL version number 2020-10-29 09:57:37 +00:00
channel-watch.c io: Fix Lesser GPL version number 2020-10-29 09:57:37 +00:00
channel-websock.c QIOChannel: Add flags on io_writev and introduce io_flush callback 2022-05-16 13:56:24 +01:00
channel.c QIOChannel: Add flags on io_writev and introduce io_flush callback 2022-05-16 13:56:24 +01:00
dns-resolver.c build-sys: add HAVE_IPPROTO_MPTCP 2021-09-30 15:30:25 +02:00
meson.build io: add a QIOChannelNull equivalent to /dev/null 2022-06-22 18:11:21 +01:00
net-listener.c io/net-listener: Call the notifier during finalize 2021-06-08 19:36:17 +01:00
task.c io: Fix Lesser GPL version number 2020-10-29 09:57:37 +00:00
trace-events io: add a QIOChannelNull equivalent to /dev/null 2022-06-22 18:11:21 +01:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00