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/*
*------------------------------------------------------------------
* spp_ctx.h - packet / context definitions
*
* Copyright (c) 2007-2014 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*------------------------------------------------------------------
*/
#ifndef __SPP_CTX_H__
#define __SPP_CTX_H__
/* Packet header / data */
/* Any change to spp_ctx_t structure should be updated in vnet/buffer.h
* as well.
*/
typedef struct _spp_ctx {
#ifdef TOBE_PORTED
/* Following fields are required to handle multibuffer */
u32 num_buffers; /* Number of buffers part of packet */
vlib_buffer_t *next_ctx_this_packet;
/* Following is used by non-UDP protocols */
#define SPP_CTX_FEATURE_DATA_SIZE 16
u8 feature_data[SPP_CTX_FEATURE_DATA_SIZE];
#endif
union { /* Roddick specific */
u32 roddick_info;
struct __tx_pkt_info { /* Used by PI to PI communication for TX */
u32 uidb_index:16; /* uidb_index to transmit */
u32 packet_type:2; /* 1-IPv4, 2-Ipv6, - 0,3 - Unused */
u32 ipv4_defrag:1; /* 0 - Normal, 1 - update first
* segment size
* (set by 6rd defrag node)
*/
u32 dst_ip_port_idx:4;/* Index to dst_ip_port_table */
u32 from_node:4;
u32 calc_chksum:1;
u32 reserved:4;
} tx;
struct __rx_pkt_info { /* Used by PD / PI communication */
u32 uidb_index:16; /* uidb_index received in packet */
u32 packet_type:2; /* 1-IPv4, 2-Ipv6, - 0,3 - Unused */
u32 icmp_type:1; /* 0-ICMP query type, 1-ICMP error type */
u32 protocol_type:2; /* 1-TCP, 2-UDP, 3-ICMP, 0 - Unused */
u32 ipv4_defrag:1; /* 0 - Normal, 1 - update first
* segment size
* (set by 6rd defrag node)
*/
u32 direction:1; /* 0-Outside, 1-Inside */
u32 frag:1; /*IP fragment-1, Otherwise-0*/
u32 option:1; /* 0-No IP option (v4) present, non-fragHdr
* option hdr present (v6)
*/
u32 df_bit:1; /* IPv4 DF bit copied here */
u32 reserved1:6;
} rx;
} ru;
} spp_ctx_t;
#endif
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