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DRAFT ip4/6_frag to support DPO Style based Next Node

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Change-Id: I1df3d23c1c5668b83d52b41f51c0e3f24183af9e
Signed-off-by: Vijayabhaskar Katamreddy <vkatamre@cisco.com>
This commit is contained in:
Vijayabhaskar Katamreddy
2018-01-25 15:12:11 -08:00
committed by Florin Coras
parent 30349b075c
commit c592ca527a
2 changed files with 15 additions and 0 deletions
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1
src/vnet/buffer.h
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@ -289,6 +289,7 @@ typedef struct
/* IP Fragmentation */
struct
{
u32 pad[2]; /* do not overlay w/ ip.adj_index[0,1] */
u16 header_offset;
u16 mtu;
u8 next_index;

14
src/vnet/ip/ip_frag.c
View File

@ -131,6 +131,12 @@ ip4_frag_do_fragment (vlib_main_t * vm, u32 pi, u32 ** buffer,
vnet_buffer (p)->sw_if_index[VLIB_RX];
vnet_buffer (b)->sw_if_index[VLIB_TX] =
vnet_buffer (p)->sw_if_index[VLIB_TX];
/* Copy Adj_index in case DPO based node is sending for the fragmentation,
the packet would be sent back to the proper DPO next node and Index */
vnet_buffer (b)->ip.adj_index[VLIB_RX] =
vnet_buffer (p)->ip.adj_index[VLIB_RX];
vnet_buffer (b)->ip.adj_index[VLIB_TX] =
vnet_buffer (p)->ip.adj_index[VLIB_TX];
fip4 = (ip4_header_t *) (vlib_buffer_get_current (b) + offset);
//Copy offset and ip4 header
@ -393,6 +399,14 @@ ip6_frag_do_fragment (vlib_main_t * vm, u32 pi, u32 ** buffer,
vnet_buffer (p)->sw_if_index[VLIB_RX];
vnet_buffer (b)->sw_if_index[VLIB_TX] =
vnet_buffer (p)->sw_if_index[VLIB_TX];
/* Copy Adj_index in case DPO based node is sending for the fragmentation,
the packet would be sent back to the proper DPO next node and Index */
vnet_buffer (b)->ip.adj_index[VLIB_RX] =
vnet_buffer (p)->ip.adj_index[VLIB_RX];
vnet_buffer (b)->ip.adj_index[VLIB_TX] =
vnet_buffer (p)->ip.adj_index[VLIB_TX];
clib_memcpy (vlib_buffer_get_current (b),
vlib_buffer_get_current (p), headers_len);
clib_memcpy (vlib_buffer_get_current (b) + headers_len,