diff options
Diffstat (limited to 'net/ipv6/ip6_offload.c')
| -rw-r--r-- | net/ipv6/ip6_offload.c | 77 |
1 files changed, 54 insertions, 23 deletions
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c index f5eb184e1093..22e90e56b5a9 100644 --- a/net/ipv6/ip6_offload.c +++ b/net/ipv6/ip6_offload.c @@ -16,6 +16,7 @@ #include <net/protocol.h> #include <net/ipv6.h> +#include <net/inet_common.h> #include "ip6_offload.h" @@ -69,24 +70,6 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, bool encap, udpfrag; int nhoff; - if (unlikely(skb_shinfo(skb)->gso_type & - ~(SKB_GSO_TCPV4 | - SKB_GSO_UDP | - SKB_GSO_DODGY | - SKB_GSO_TCP_ECN | - SKB_GSO_TCP_FIXEDID | - SKB_GSO_TCPV6 | - SKB_GSO_GRE | - SKB_GSO_GRE_CSUM | - SKB_GSO_IPIP | - SKB_GSO_SIT | - SKB_GSO_UDP_TUNNEL | - SKB_GSO_UDP_TUNNEL_CSUM | - SKB_GSO_TUNNEL_REMCSUM | - SKB_GSO_PARTIAL | - 0))) - goto out; - skb_reset_network_header(skb); nhoff = skb_network_header(skb) - skb_mac_header(skb); if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h)))) @@ -104,7 +87,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb, proto = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr); if (skb->encapsulation && - skb_shinfo(skb)->gso_type & (SKB_GSO_SIT|SKB_GSO_IPIP)) + skb_shinfo(skb)->gso_type & (SKB_GSO_IPXIP4 | SKB_GSO_IPXIP6)) udpfrag = proto == IPPROTO_UDP && encap; else udpfrag = proto == IPPROTO_UDP && !skb->encapsulation; @@ -271,9 +254,11 @@ out: return pp; } -static struct sk_buff **sit_gro_receive(struct sk_buff **head, - struct sk_buff *skb) +static struct sk_buff **sit_ip6ip6_gro_receive(struct sk_buff **head, + struct sk_buff *skb) { + /* Common GRO receive for SIT and IP6IP6 */ + if (NAPI_GRO_CB(skb)->encap_mark) { NAPI_GRO_CB(skb)->flush = 1; return NULL; @@ -284,6 +269,21 @@ static struct sk_buff **sit_gro_receive(struct sk_buff **head, return ipv6_gro_receive(head, skb); } +static struct sk_buff **ip4ip6_gro_receive(struct sk_buff **head, + struct sk_buff *skb) +{ + /* Common GRO receive for SIT and IP6IP6 */ + + if (NAPI_GRO_CB(skb)->encap_mark) { + NAPI_GRO_CB(skb)->flush = 1; + return NULL; + } + + NAPI_GRO_CB(skb)->encap_mark = 1; + + return inet_gro_receive(head, skb); +} + static int ipv6_gro_complete(struct sk_buff *skb, int nhoff) { const struct net_offload *ops; @@ -312,10 +312,24 @@ out_unlock: static int sit_gro_complete(struct sk_buff *skb, int nhoff) { skb->encapsulation = 1; - skb_shinfo(skb)->gso_type |= SKB_GSO_SIT; + skb_shinfo(skb)->gso_type |= SKB_GSO_IPXIP4; return ipv6_gro_complete(skb, nhoff); } +static int ip6ip6_gro_complete(struct sk_buff *skb, int nhoff) +{ + skb->encapsulation = 1; + skb_shinfo(skb)->gso_type |= SKB_GSO_IPXIP6; + return ipv6_gro_complete(skb, nhoff); +} + +static int ip4ip6_gro_complete(struct sk_buff *skb, int nhoff) +{ + skb->encapsulation = 1; + skb_shinfo(skb)->gso_type |= SKB_GSO_IPXIP6; + return inet_gro_complete(skb, nhoff); +} + static struct packet_offload ipv6_packet_offload __read_mostly = { .type = cpu_to_be16(ETH_P_IPV6), .callbacks = { @@ -328,11 +342,26 @@ static struct packet_offload ipv6_packet_offload __read_mostly = { static const struct net_offload sit_offload = { .callbacks = { .gso_segment = ipv6_gso_segment, - .gro_receive = sit_gro_receive, + .gro_receive = sit_ip6ip6_gro_receive, .gro_complete = sit_gro_complete, }, }; +static const struct net_offload ip4ip6_offload = { + .callbacks = { + .gso_segment = inet_gso_segment, + .gro_receive = ip4ip6_gro_receive, + .gro_complete = ip4ip6_gro_complete, + }, +}; + +static const struct net_offload ip6ip6_offload = { + .callbacks = { + .gso_segment = ipv6_gso_segment, + .gro_receive = sit_ip6ip6_gro_receive, + .gro_complete = ip6ip6_gro_complete, + }, +}; static int __init ipv6_offload_init(void) { @@ -344,6 +373,8 @@ static int __init ipv6_offload_init(void) dev_add_offload(&ipv6_packet_offload); inet_add_offload(&sit_offload, IPPROTO_IPV6); + inet6_add_offload(&ip6ip6_offload, IPPROTO_IPV6); + inet6_add_offload(&ip4ip6_offload, IPPROTO_IPIP); return 0; } |