diff options
| -rw-r--r-- | src/plugins/gtpu/gtpu_encap.c | 49 |
1 files changed, 25 insertions, 24 deletions
diff --git a/src/plugins/gtpu/gtpu_encap.c b/src/plugins/gtpu/gtpu_encap.c index 4442c42ad66..5f52d5a1543 100644 --- a/src/plugins/gtpu/gtpu_encap.c +++ b/src/plugins/gtpu/gtpu_encap.c @@ -380,24 +380,6 @@ gtpu_encap_inline (vlib_main_t * vm, udp3->length = new_l3; udp3->src_port = flow_hash3; - /* IPv6 UDP checksum is mandatory */ - udp0->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0, - ip6_0, &bogus); - if (udp0->checksum == 0) - udp0->checksum = 0xffff; - udp1->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b1, - ip6_1, &bogus); - if (udp1->checksum == 0) - udp1->checksum = 0xffff; - udp2->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b2, - ip6_2, &bogus); - if (udp2->checksum == 0) - udp2->checksum = 0xffff; - udp3->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b3, - ip6_3, &bogus); - if (udp3->checksum == 0) - udp3->checksum = 0xffff; - /* Fix GTPU length */ gtpu0 = (gtpu_header_t *)(udp0+1); new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain(vm, b0) @@ -419,6 +401,25 @@ gtpu_encap_inline (vlib_main_t * vm, - sizeof (*ip6_3) - sizeof(*udp3) - GTPU_V1_HDR_LEN); gtpu3->length = new_l3; + + /* IPv6 UDP checksum is mandatory */ + udp0->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0, + ip6_0, &bogus); + if (udp0->checksum == 0) + udp0->checksum = 0xffff; + udp1->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b1, + ip6_1, &bogus); + if (udp1->checksum == 0) + udp1->checksum = 0xffff; + udp2->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b2, + ip6_2, &bogus); + if (udp2->checksum == 0) + udp2->checksum = 0xffff; + udp3->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b3, + ip6_3, &bogus); + if (udp3->checksum == 0) + udp3->checksum = 0xffff; + } pkts_encapsulated += 4; @@ -592,18 +593,18 @@ gtpu_encap_inline (vlib_main_t * vm, udp0->length = new_l0; udp0->src_port = flow_hash0; - /* IPv6 UDP checksum is mandatory */ - udp0->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0, - ip6_0, &bogus); - if (udp0->checksum == 0) - udp0->checksum = 0xffff; - /* Fix GTPU length */ gtpu0 = (gtpu_header_t *)(udp0+1); new_l0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain(vm, b0) - sizeof (*ip4_0) - sizeof(*udp0) - GTPU_V1_HDR_LEN); gtpu0->length = new_l0; + + /* IPv6 UDP checksum is mandatory */ + udp0->checksum = ip6_tcp_udp_icmp_compute_checksum(vm, b0, + ip6_0, &bogus); + if (udp0->checksum == 0) + udp0->checksum = 0xffff; } pkts_encapsulated ++; |