diff options
Diffstat (limited to 'drivers/net/bih/translate.h')
| -rw-r--r-- | drivers/net/bih/translate.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/drivers/net/bih/translate.h b/drivers/net/bih/translate.h new file mode 100644 index 00000000..93840462 --- /dev/null +++ b/drivers/net/bih/translate.h @@ -0,0 +1,176 @@ +/* + * Bump in the Host (BIH) + * http://code.google.com/p/bump-in-the-host/source/ + * ---------------------------------------------------------- + * + * Copyrighted (C) 2010,2011 by the China Mobile Communications + * Corporation <bih.cmcc@gmail.com>; + * See the COPYRIGHT file for full details. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. + * + */ +#ifndef _FANYI_H +#define _FANYI_H +#define FANYI_ETH 0 + +#define BUFF_SIZE 4096 +#define FRAG_BUFF_SIZE 1232 +//#define FRAG_BUFF_SIZE 1400 + + +#define TRANSLATED_PREFIX 0x0000ffff +#define MAPPED_PREFIX 0x0000ffff + +#define IP4_IP6_HDR_DIFF 20 +#define IP6_FRAGMENT_SIZE 8 + +#define IP6F_OFF_MASK 0xfff8 +#define IP6F_RESERVED_MASK 0x0006 +#define IP6F_MORE_FRAG 0x0001 + +struct ip6_opthdr +{ + unsigned char nxt; + unsigned char len; +}; + +struct ip6_hdr +{ + union + { + struct ip6_hdrctl + { + uint32_t ip6_un1_flow; /* 4 bits version, 8 bits TC, + 20 bits flow-ID */ + uint16_t ip6_un1_plen; /* payload length */ + uint8_t ip6_un1_nxt; /* next header */ + uint8_t ip6_un1_hlim; /* hop limit */ + } ip6_un1; + uint8_t ip6_un2_vfc; /* 4 bits version, top 4 bits tclass */ + } ip6_ctlun; + struct in6_addr ip6_src; /* source address */ + struct in6_addr ip6_dst; /* destination address */ +}; +#define ip6_vfc ip6_ctlun.ip6_un2_vfc +#define ip6_flow ip6_ctlun.ip6_un1.ip6_un1_flow +#define ip6_plen ip6_ctlun.ip6_un1.ip6_un1_plen +#define ip6_nxt ip6_ctlun.ip6_un1.ip6_un1_nxt +#define ip6_hlim ip6_ctlun.ip6_un1.ip6_un1_hlim +#define ip6_hops ip6_ctlun.ip6_un1.ip6_un1_hlim + +struct ipv6 { +#if defined(__LITTLE_ENDIAN_BITFIELD) + unsigned char priority:4,version:4; +#elif defined(__BIG_ENDIAN_BITFIELD) + unsigned char version:4,priority:4; +#else +#error "Please fix <asm/byteorder.h>" +#endif + unsigned char flow_lbl[3]; + unsigned short payload_len; + unsigned char nexthdr; + unsigned char hop_limit; + struct in6_addr saddr; + struct in6_addr daddr; +}; + +struct ip +{ +#if defined(__LITTLE_ENDIAN_BITFIELD) + unsigned int ip_hl:4; /*header length*/ + unsigned int ip_v:4; /*version*/ +#elif defined(__BIG_ENDIAN_BITFIELD) + unsigned int ip_v:4; /*version*/ + unsigned int ip_hl:4; /*header length*/ +#endif + unsigned char ip_tos; /*type of service*/ + unsigned short ip_len; /*total length*/ + unsigned short ip_id; /*identification*/ + unsigned short ip_off; /*fragment offset field*/ +#define IP_RF 0x8000 /*reserved fragment flag*/ +#define IP_DF 0x4000 /*dont fragment flag*/ +#define IP_MF 0x2000 /*more fragments flag*/ +#define IP_OFFMASK 0x1fff /*mask for fragmenting bits*/ + unsigned char ip_ttl; /*time to live*/ + unsigned char ip_p; /*protocol*/ + unsigned short ip_sum; /*checksum*/ + unsigned int ip_src,ip_dst;/*source and dest address*/ +}__attribute__((packed)); + +struct tcp +{ + unsigned short sport; /*源端口*/ + unsigned short dport; /*目的端口*/ + unsigned int seq; /*标识TCP数据包的序列号*/ + unsigned int ack_seq; /*确认序列号,表示接受方下一次接受的数据序列号*/ +#if defined(__LITTLE_ENDIAN_BITFIELD) + unsigned short res1:4; + unsigned short doff:4; /*TCP数据包首部长度,以4字节为单位, + 一般的时候为5*/ + unsigned short fin:1; /*如果设置为1的时候,表示请求关闭连接*/ + unsigned short syn:1; /*如果设置为1的时候,表示请求建立连接*/ + unsigned short rst:1; /*如果设置为1的时候,表示请求重新连接*/ + unsigned short psh:1; /*如果设置为1,那么接收方收到数据后, + 立即交给上一层程序*/ + unsigned short ack:1; /*如果确认号正确则为1*/ + unsigned short urg:1; /*如果设置紧急数据指针,则该位为1*/ + unsigned short res2:2; +#elif defined(__BIG_ENDIAN_BITFIELD) + unsigned short doff:4; + unsigned short res1:4; + unsigned short res2:2; + unsigned short urg:1; + unsigned short ack:1; + unsigned short psh:1; + unsigned short rst:1; + unsigned short syn:1; + unsigned short fin:1; +#endif + unsigned short window; /*告诉接收者可以接收的大小*/ + unsigned short check; /*TCP数据报校验*/ + unsigned short urg_prt; /*如果urg=1,那么指出紧急数据 + 对于历史数据开始的序列号的偏移值*/ +}__attribute__((packed)); + +struct udp +{ + unsigned short sport; + unsigned short dport; + unsigned short len; + unsigned short check; +}__attribute__((packed)); + +#define lprintf(level,format,...) \ +do \ +{ \ + if(level==0) \ + printk("%s(%d)%s: "format,__FILE__,__LINE__,(char *)__FUNCTION__,##__VA_ARGS__ ); \ + else \ + printk((format),##__VA_ARGS__ ); \ +} \ +while(0) + +#define PKG_PUT_SHORT(val, cp) \ +do \ +{ \ + unsigned short Xv; \ + Xv = (unsigned short)(val); \ + *(cp)++ = (unsigned char)(Xv >> 8); \ + *(cp)++ = (unsigned char)Xv; \ +} \ +while(0) + +#endif |