8bdab83b34
When COLO use only one vnet_hdr_support parameter between
filter-redirector and filter-mirror(or colo-compare), COLO will crash
with segmentation fault. Back track as follow:
Thread 1 "qemu-system-x86" received signal SIGSEGV, Segmentation fault.
0x0000555555cb200b in eth_get_l2_hdr_length (p=0x0)
at /home/tao/project/COLO/colo-qemu/include/net/eth.h:296
296 uint16_t proto = be16_to_cpu(PKT_GET_ETH_HDR(p)->h_proto);
(gdb) bt
0 0x0000555555cb200b in eth_get_l2_hdr_length (p=0x0)
at /home/tao/project/COLO/colo-qemu/include/net/eth.h:296
1 0x0000555555cb22b4 in parse_packet_early (pkt=0x555556a44840) at
net/colo.c:49
2 0x0000555555cb2b91 in is_tcp_packet (pkt=0x555556a44840) at
net/filter-rewriter.c:63
So wrong vnet_hdr_len will cause pkt->data become NULL. Add check to
raise error and add trace-events to track vnet_hdr_len.
Signed-off-by: Tao Xu <tao3.xu@intel.com>
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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|---|---|---|
| .. | ||
| can | ||
| announce.c | ||
| checksum.c | ||
| clients.h | ||
| colo-compare.c | ||
| colo-compare.h | ||
| colo.c | ||
| colo.h | ||
| dump.c | ||
| eth.c | ||
| filter-buffer.c | ||
| filter-mirror.c | ||
| filter-replay.c | ||
| filter-rewriter.c | ||
| filter.c | ||
| hub.c | ||
| hub.h | ||
| l2tpv3.c | ||
| meson.build | ||
| net.c | ||
| netmap.c | ||
| queue.c | ||
| slirp.c | ||
| socket.c | ||
| tap_int.h | ||
| tap-bsd.c | ||
| tap-linux.c | ||
| tap-linux.h | ||
| tap-solaris.c | ||
| tap-stub.c | ||
| tap-win32.c | ||
| tap.c | ||
| trace-events | ||
| trace.h | ||
| util.c | ||
| util.h | ||
| vde.c | ||
| vhost-user-stub.c | ||
| vhost-user.c | ||
| vhost-vdpa-stub.c | ||
| vhost-vdpa.c | ||
| vmnet_int.h | ||
| vmnet-bridged.m | ||
| vmnet-common.m | ||
| vmnet-host.c | ||
| vmnet-shared.c | ||