diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-03 15:44:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-03 15:44:38 +0300 |
| commit | 824adf37ee9ddf3ecba1bc245507bc5953dda268 (patch) | |
| tree | ee85366f9e2c019b58492558d8ad406df35fd260 /include/linux/virtio_net.h | |
| parent | f2ee4759fb700b32a1bd830960fe86bf6bdfd0ab (diff) | |
| parent | c9e6606c7fe92b50a02ce51dda82586ebdf99b48 (diff) | |
| download | linux-824adf37ee9ddf3ecba1bc245507bc5953dda268.tar.xz | |
Merge 5.16-rc8 into char-misc-next
We need the fixes in here as well for testing.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/virtio_net.h')
| -rw-r--r-- | include/linux/virtio_net.h | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h index 04e87f4b9417..a960de68ac69 100644 --- a/include/linux/virtio_net.h +++ b/include/linux/virtio_net.h @@ -7,9 +7,27 @@ #include <uapi/linux/udp.h> #include <uapi/linux/virtio_net.h> +static inline bool virtio_net_hdr_match_proto(__be16 protocol, __u8 gso_type) +{ + switch (gso_type & ~VIRTIO_NET_HDR_GSO_ECN) { + case VIRTIO_NET_HDR_GSO_TCPV4: + return protocol == cpu_to_be16(ETH_P_IP); + case VIRTIO_NET_HDR_GSO_TCPV6: + return protocol == cpu_to_be16(ETH_P_IPV6); + case VIRTIO_NET_HDR_GSO_UDP: + return protocol == cpu_to_be16(ETH_P_IP) || + protocol == cpu_to_be16(ETH_P_IPV6); + default: + return false; + } +} + static inline int virtio_net_hdr_set_proto(struct sk_buff *skb, const struct virtio_net_hdr *hdr) { + if (skb->protocol) + return 0; + switch (hdr->gso_type & ~VIRTIO_NET_HDR_GSO_ECN) { case VIRTIO_NET_HDR_GSO_TCPV4: case VIRTIO_NET_HDR_GSO_UDP: @@ -88,9 +106,12 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb, if (!skb->protocol) { __be16 protocol = dev_parse_header_protocol(skb); - virtio_net_hdr_set_proto(skb, hdr); - if (protocol && protocol != skb->protocol) + if (!protocol) + virtio_net_hdr_set_proto(skb, hdr); + else if (!virtio_net_hdr_match_proto(protocol, hdr->gso_type)) return -EINVAL; + else + skb->protocol = protocol; } retry: if (!skb_flow_dissect_flow_keys_basic(NULL, skb, &keys, |