ip_icmp.h
资源名称:admscan3.tgz [点击查看]
上传用户:szwxkjdz
上传日期:2007-01-05
资源大小:4k
文件大小:2k
源码类别:
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开发平台:
Unix_Linux
- struct icmphdr
- {
- u_int8_t type; /* message type */
- u_int8_t code; /* type sub-code */
- u_int16_t checksum;
- union
- {
- struct
- {
- u_int16_t id;
- u_int16_t sequence;
- } echo; /* echo datagram */
- u_int32_t gateway; /* gateway address */
- struct
- {
- u_int16_t __unused;
- u_int16_t mtu;
- } frag; /* path mtu discovery */
- } un;
- };
- #define ICMP_ECHOREPLY 0 /* Echo Reply */
- #define ICMP_DEST_UNREACH 3 /* Destination Unreachable */
- #define ICMP_SOURCE_QUENCH 4 /* Source Quench */
- #define ICMP_REDIRECT 5 /* Redirect (change route) */
- #define ICMP_ECHO 8 /* Echo Request */
- #define ICMP_TIME_EXCEEDED 11 /* Time Exceeded */
- #define ICMP_PARAMETERPROB 12 /* Parameter Problem */
- #define ICMP_TIMESTAMP 13 /* Timestamp Request */
- #define ICMP_TIMESTAMPREPLY 14 /* Timestamp Reply */
- #define ICMP_INFO_REQUEST 15 /* Information Request */
- #define ICMP_INFO_REPLY 16 /* Information Reply */
- #define ICMP_ADDRESS 17 /* Address Mask Request */
- #define ICMP_ADDRESSREPLY 18 /* Address Mask Reply */
- #define NR_ICMP_TYPES 18
- /* Codes for UNREACH. */
- #define ICMP_NET_UNREACH 0 /* Network Unreachable */
- #define ICMP_HOST_UNREACH 1 /* Host Unreachable */
- #define ICMP_PROT_UNREACH 2 /* Protocol Unreachable */
- #define ICMP_PORT_UNREACH 3 /* Port Unreachable */
- #define ICMP_FRAG_NEEDED 4 /* Fragmentation Needed/DF set */
- #define ICMP_SR_FAILED 5 /* Source Route failed */
- #define ICMP_NET_UNKNOWN 6
- #define ICMP_HOST_UNKNOWN 7
- #define ICMP_HOST_ISOLATED 8
- #define ICMP_NET_ANO 9
- #define ICMP_HOST_ANO 10
- #define ICMP_NET_UNR_TOS 11
- #define ICMP_HOST_UNR_TOS 12
- #define ICMP_PKT_FILTERED 13 /* Packet filtered */
- #define ICMP_PREC_VIOLATION 14 /* Precedence violation */
- #define ICMP_PREC_CUTOFF 15 /* Precedence cut off */
- #define NR_ICMP_UNREACH 15 /* instead of hardcoding immediate value */
- /* Codes for REDIRECT. */
- #define ICMP_REDIR_NET 0 /* Redirect Net */
- #define ICMP_REDIR_HOST 1 /* Redirect Host */
- #define ICMP_REDIR_NETTOS 2 /* Redirect Net for TOS */
- #define ICMP_REDIR_HOSTTOS 3 /* Redirect Host for TOS */
- /* Codes for TIME_EXCEEDED. */
- #define ICMP_EXC_TTL 0 /* TTL count exceeded */
- #define ICMP_EXC_FRAGTIME 1 /* Fragment Reass time exceeded */