diff options
| author |   Ole Troan <ot@cisco.com> | 2018-04-10 16:02:51 +0200 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2018-06-14 05:02:21 +0000 |
| commit | 313f7e2feac232ac841ad8a9d5e21e8387514803 (patch) | |
| tree | 1fe059324ed97395116e238119a0a830fcdd0ee8 /src/vnet/ip/ip4_forward.c | |
| parent | aa2f59bbd356c1165745703cfddb5ccd21e887eb (diff) | |
MTU: IP fragmentation added to ip4-rewrite and ip6-rewrite
Change-Id: Ibae260273f25a319153be37470aed49ff73e957a
Signed-off-by: Ole Troan <ot@cisco.com>
Diffstat (limited to 'src/vnet/ip/ip4_forward.c')
| -rw-r--r-- | src/vnet/ip/ip4_forward.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c index 6d5f07bda2c..3444eb88b7c 100644 --- a/src/vnet/ip/ip4_forward.c +++ b/src/vnet/ip/ip4_forward.c @@ -39,6 +39,7 @@ #include <vnet/vnet.h> #include <vnet/ip/ip.h> +#include <vnet/ip/ip_frag.h> #include <vnet/ethernet/ethernet.h> /* for ethernet_header_t */ #include <vnet/ethernet/arp_packet.h> /* for ethernet_arp_header_t */ #include <vnet/ppp/ppp.h> @@ -2013,6 +2014,8 @@ typedef enum { IP4_REWRITE_NEXT_DROP, IP4_REWRITE_NEXT_ICMP_ERROR, + IP4_REWRITE_NEXT_FRAGMENT, + IP4_REWRITE_N_NEXT /* Last */ } ip4_rewrite_next_t; /** @@ -2042,8 +2045,10 @@ ip4_mtu_check (vlib_buffer_t * b, u16 packet_len, } else { - /* Add support for fragmentation here */ - *next = IP4_REWRITE_NEXT_DROP; + /* IP fragmentation */ + ip_frag_set_vnet_buffer (b, 0, adj_packet_bytes, + IP4_FRAG_NEXT_IP4_LOOKUP, 0); + *next = IP4_REWRITE_NEXT_FRAGMENT; } } } @@ -2539,10 +2544,11 @@ VLIB_REGISTER_NODE (ip4_rewrite_node) = { .format_trace = format_ip4_rewrite_trace, - .n_next_nodes = 2, + .n_next_nodes = IP4_REWRITE_N_NEXT, .next_nodes = { [IP4_REWRITE_NEXT_DROP] = "ip4-drop", [IP4_REWRITE_NEXT_ICMP_ERROR] = "ip4-icmp-error", + [IP4_REWRITE_NEXT_FRAGMENT] = "ip4-frag", }, }; VLIB_NODE_FUNCTION_MULTIARCH (ip4_rewrite_node, ip4_rewrite) |