Ed Swierk 0dacea92d2 net: Transmit zero UDP checksum as 0xFFFF ... The checksum algorithm used by IPv4, TCP and UDP allows a zero value to be represented by either 0x0000 and 0xFFFF. But per RFC 768, a zero UDP checksum must be transmitted as 0xFFFF because 0x0000 is a special value meaning no checksum. Substitute 0xFFFF whenever a checksum is computed as zero when modifying a UDP datagram header. Doing this on IPv4 and TCP checksums is unnecessary but legal. Add a wrapper for net_checksum_finish() that makes the substitution. (We can't just change net_checksum_finish(), as that function is also used by receivers to verify checksums, and in that case the expected value is always 0x0000.) Signed-off-by: Ed Swierk <eswierk@skyportsystems.com> Signed-off-by: Jason Wang <jasowang@redhat.com>		2017-11-20 11:08:00 +08:00
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checksum.h	net: Transmit zero UDP checksum as 0xFFFF	2017-11-20 11:08:00 +08:00
eth.h	slirp: add a fake NC-SI backend	2017-04-25 19:17:25 +08:00
filter.h	Use scripts/clean-includes to drop redundant qemu/typedefs.h	2016-03-22 22:20:16 +01:00
net.h	net/net.c: Add vnet_hdr support in SocketReadState	2017-07-17 20:02:11 +08:00
queue.h	net/queue: export qemu_net_queue_append_iov	2015-10-12 13:31:18 +08:00
slirp.h	hmp: Name HMP info handler functions hmp_info_SUBCOMMAND()	2015-02-18 11:58:50 +01:00
tap.h	virtio-net,tap: use standard-headers	2015-02-26 13:04:04 +01:00
vhost_net.h	vhost-net: Notify the backend about the host MTU	2017-01-10 07:02:53 +02:00
vhost-user.h	Clean up ill-advised or unusual header guards	2016-07-12 16:20:46 +02:00