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| author | Akihiko Odaki <akihiko.odaki@daynix.com> | 2023-02-23 19:20:05 +0900 |
|---|---|---|
| committer | Jason Wang <jasowang@redhat.com> | 2023-03-10 15:35:38 +0800 |
| commit | 481c52320a26e2e3a3c8a1cdac3d1460b9b15d13 (patch) | |
| tree | 323d5a1bc1cb1c332954cee1e0d0c193ce209a87 /net/tap.c | |
| parent | d921db0ae937cfa5935ae505f3c77a46dd505265 (diff) | |
| download | focaccia-qemu-481c52320a26e2e3a3c8a1cdac3d1460b9b15d13.tar.gz focaccia-qemu-481c52320a26e2e3a3c8a1cdac3d1460b9b15d13.zip | |
net: Strip virtio-net header when dumping
filter-dump specifiees Ethernet as PCAP LinkType, which does not expect virtio-net header. Having virtio-net header in such PCAP file breaks PCAP unconsumable. Unfortunately currently there is no LinkType for virtio-net so for now strip virtio-net header to convert the output to Ethernet. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
Diffstat (limited to 'net/tap.c')
| -rw-r--r-- | net/tap.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/net/tap.c b/net/tap.c index 7d7bc1dc5f..1bf085d422 100644 --- a/net/tap.c +++ b/net/tap.c @@ -255,6 +255,13 @@ static bool tap_has_vnet_hdr_len(NetClientState *nc, int len) return !!tap_probe_vnet_hdr_len(s->fd, len); } +static int tap_get_vnet_hdr_len(NetClientState *nc) +{ + TAPState *s = DO_UPCAST(TAPState, nc, nc); + + return s->host_vnet_hdr_len; +} + static void tap_set_vnet_hdr_len(NetClientState *nc, int len) { TAPState *s = DO_UPCAST(TAPState, nc, nc); @@ -268,6 +275,13 @@ static void tap_set_vnet_hdr_len(NetClientState *nc, int len) s->host_vnet_hdr_len = len; } +static bool tap_get_using_vnet_hdr(NetClientState *nc) +{ + TAPState *s = DO_UPCAST(TAPState, nc, nc); + + return s->using_vnet_hdr; +} + static void tap_using_vnet_hdr(NetClientState *nc, bool using_vnet_hdr) { TAPState *s = DO_UPCAST(TAPState, nc, nc); @@ -372,8 +386,10 @@ static NetClientInfo net_tap_info = { .has_ufo = tap_has_ufo, .has_vnet_hdr = tap_has_vnet_hdr, .has_vnet_hdr_len = tap_has_vnet_hdr_len, + .get_using_vnet_hdr = tap_get_using_vnet_hdr, .using_vnet_hdr = tap_using_vnet_hdr, .set_offload = tap_set_offload, + .get_vnet_hdr_len = tap_get_vnet_hdr_len, .set_vnet_hdr_len = tap_set_vnet_hdr_len, .set_vnet_le = tap_set_vnet_le, .set_vnet_be = tap_set_vnet_be, |