Type: improvement
Change-Id: I41f70e5977fedbf0050205ebe52126ef373ebc06
Signed-off-by: Benoît Ganne <bganne@cisco.com>
ip6_compute_flow_hash (const ip6_header_t * ip,
flow_hash_config_t flow_hash_config)
{
ip6_compute_flow_hash (const ip6_header_t * ip,
flow_hash_config_t flow_hash_config)
{
- tcp_header_t *tcp;
- udp_header_t *udp = (void *) (ip + 1);
- gtpv1u_header_t *gtpu = (void *) (udp + 1);
+ const tcp_header_t *tcp;
+ const udp_header_t *udp = (void *) (ip + 1);
+ const gtpv1u_header_t *gtpu = (void *) (udp + 1);
u64 a, b, c;
u64 t1, t2;
u32 t3;
uword is_tcp_udp = 0;
u64 a, b, c;
u64 t1, t2;
u32 t3;
uword is_tcp_udp = 0;
- uword is_udp = ip->protocol == IP_PROTOCOL_UDP;
u8 protocol = ip->protocol;
u8 protocol = ip->protocol;
+ uword is_udp = protocol == IP_PROTOCOL_UDP;
- if (PREDICT_TRUE ((ip->protocol == IP_PROTOCOL_TCP) || is_udp))
+ if (PREDICT_TRUE ((protocol == IP_PROTOCOL_TCP) || is_udp))
{
is_tcp_udp = 1;
tcp = (void *) (ip + 1);
}
{
is_tcp_udp = 1;
tcp = (void *) (ip + 1);
}
- else if (ip->protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)
- ip6_hop_by_hop_header_t *hbh = (ip6_hop_by_hop_header_t *) (ip + 1);
- if ((hbh->protocol == IP_PROTOCOL_TCP) ||
- (hbh->protocol == IP_PROTOCOL_UDP))
+ const void *cur = ip + 1;
+ if (protocol == IP_PROTOCOL_IP6_HOP_BY_HOP_OPTIONS)
+ {
+ const ip6_hop_by_hop_header_t *hbh = cur;
+ protocol = hbh->protocol;
+ cur += (hbh->length + 1) * 8;
+ }
+ if (protocol == IP_PROTOCOL_IPV6_FRAGMENTATION)
+ {
+ const ip6_fragment_ext_header_t *frag = cur;
+ protocol = frag->protocol;
+ }
+ else if (protocol == IP_PROTOCOL_TCP || protocol == IP_PROTOCOL_UDP)
- tcp = (tcp_header_t *) ((u8 *) hbh + ((hbh->length + 1) << 3));
- protocol = hbh->protocol;
}
t1 = (ip->src_address.as_u64[0] ^ ip->src_address.as_u64[1]);
}
t1 = (ip->src_address.as_u64[0] ^ ip->src_address.as_u64[1]);
u16 value;
}) ip6_router_alert_option_t;
u16 value;
}) ip6_router_alert_option_t;
+typedef CLIB_PACKED (struct {
+ u8 protocol;
+ u8 reserved;
+ u16 fragoff;
+ u32 id;
+}) ip6_fragment_ext_header_t;
+
typedef CLIB_PACKED (struct {
u8 next_hdr;
/* Length of this header plus option data in 8 byte units. */
typedef CLIB_PACKED (struct {
u8 next_hdr;
/* Length of this header plus option data in 8 byte units. */