pico_icmp4.h

00001 /*********************************************************************
00002 PicoTCP. Copyright (c) 2012 TASS Belgium NV. Some rights reserved.
00003 See LICENSE and COPYING for usage.
00004 
00005 .
00006 
00007 *********************************************************************/
00008 #ifndef _INCLUDE_PICO_ICMP4
00009 #define _INCLUDE_PICO_ICMP4
00010 #include "pico_addressing.h"
00011 #include "pico_protocol.h"
00012 
00013 extern struct pico_protocol pico_proto_icmp4;
00014 
00015 struct __attribute__((packed)) pico_icmp4_hdr {
00016   uint8_t type;
00017   uint8_t code;
00018   uint16_t crc;
00019 
00020   /* hun */
00021   union {
00022     uint8_t ih_pptr;
00023     struct pico_ip4 ih_gwaddr;
00024     struct {
00025       uint16_t idseq_id;
00026       uint16_t idseq_seq;
00027     } ih_idseq;
00028     uint32_t ih_void;
00029     struct {
00030       uint16_t ipm_void;
00031       uint16_t ipm_nmtu;
00032     } ih_pmtu;
00033     struct {
00034       uint8_t rta_numgw;
00035       uint8_t rta_wpa;
00036       uint16_t rta_lifetime;
00037     } ih_rta;
00038   } hun;
00039 
00040   /* dun */
00041   union {
00042     struct {
00043       uint32_t ts_otime;
00044       uint32_t ts_rtime;
00045       uint32_t ts_ttime;
00046     } id_ts;
00047     struct {
00048       uint32_t ip_options;
00049       uint32_t ip_data_hi;
00050       uint32_t ip_data_lo;
00051     } id_ip;
00052     struct {
00053       uint32_t ira_addr;
00054       uint32_t ira_pref;
00055     } id_ra;
00056     uint32_t id_mask;
00057     uint8_t  id_data[1];
00058   } dun;
00059 };
00060 
00061 #define PICO_ICMPHDR_DRY_SIZE  4
00062 #define PICO_ICMPHDR_UN_SIZE  8
00063 
00064 #define PICO_ICMP_ECHOREPLY    0 
00065 #define PICO_ICMP_DEST_UNREACH 3 
00066 #define PICO_ICMP_SOURCE_QUENCH  4
00067 #define PICO_ICMP_REDIRECT   5
00068 #define PICO_ICMP_ECHO   8
00069 #define PICO_ICMP_TIME_EXCEEDED  11
00070 #define PICO_ICMP_PARAMETERPROB  12
00071 #define PICO_ICMP_TIMESTAMP    13
00072 #define PICO_ICMP_TIMESTAMPREPLY 14
00073 #define PICO_ICMP_INFO_REQUEST 15
00074 #define PICO_ICMP_INFO_REPLY   16
00075 #define PICO_ICMP_ADDRESS    17
00076 #define PICO_ICMP_ADDRESSREPLY 18
00077 
00078 
00079 #define  PICO_ICMP_UNREACH    3  
00080 #define  PICO_ICMP_SOURCEQUENCH  4  
00081 #define  PICO_ICMP_ROUTERADVERT  9  
00082 #define  PICO_ICMP_ROUTERSOLICIT  10  
00083 #define  PICO_ICMP_TIMXCEED    11  
00084 #define  PICO_ICMP_PARAMPROB    12  
00085 #define  PICO_ICMP_TSTAMP    13  
00086 #define  PICO_ICMP_TSTAMPREPLY  14  
00087 #define  PICO_ICMP_IREQ    15  
00088 #define  PICO_ICMP_IREQREPLY    16    
00089 #define  PICO_ICMP_MASKREQ    17    
00090 #define  PICO_ICMP_MASKREPLY    18    
00091 
00092 #define  PICO_ICMP_MAXTYPE    18
00093 
00094 
00095 #define  PICO_ICMP_UNREACH_NET          0  
00096 #define  PICO_ICMP_UNREACH_HOST          1  
00097 #define  PICO_ICMP_UNREACH_PROTOCOL          2  
00098 #define  PICO_ICMP_UNREACH_PORT          3  
00099 #define  PICO_ICMP_UNREACH_NEEDFRAG          4  
00100 #define  PICO_ICMP_UNREACH_SRCFAIL          5  
00101 #define  PICO_ICMP_UNREACH_NET_UNKNOWN        6  
00102 #define  PICO_ICMP_UNREACH_HOST_UNKNOWN       7  
00103 #define  PICO_ICMP_UNREACH_ISOLATED          8  
00104 #define  PICO_ICMP_UNREACH_NET_PROHIB          9  
00105 #define  PICO_ICMP_UNREACH_HOST_PROHIB        10  
00106 #define  PICO_ICMP_UNREACH_TOSNET          11  
00107 #define  PICO_ICMP_UNREACH_TOSHOST          12  
00108 #define  PICO_ICMP_UNREACH_FILTER_PROHIB      13  
00109 #define  PICO_ICMP_UNREACH_HOST_PRECEDENCE    14  
00110 #define  PICO_ICMP_UNREACH_PRECEDENCE_CUTOFF  15  
00111 
00112 
00113 #define  PICO_ICMP_REDIRECT_NET  0    
00114 #define  PICO_ICMP_REDIRECT_HOST  1    
00115 #define  PICO_ICMP_REDIRECT_TOSNET  2    
00116 #define  PICO_ICMP_REDIRECT_TOSHOST  3    
00117 
00118 
00119 #define  PICO_ICMP_TIMXCEED_INTRANS  0    
00120 #define  PICO_ICMP_TIMXCEED_REASS  1    
00121 
00122 
00123 #define  PICO_ICMP_PARAMPROB_OPTABSENT 1    
00124 
00125 #define PICO_SIZE_ICMP4HDR ((sizeof(struct pico_icmp4_hdr)))
00126 
00127 struct pico_icmp4_stats
00128 {
00129   struct pico_ip4 dst;
00130   unsigned long size;
00131   unsigned long seq;
00132   unsigned long time;
00133   unsigned long ttl;
00134   int err;
00135 };
00136 
00137 int pico_icmp4_port_unreachable(struct pico_frame *f);
00138 int pico_icmp4_proto_unreachable(struct pico_frame *f);
00139 int pico_icmp4_dest_unreachable(struct pico_frame *f);
00140 int pico_icmp4_ttl_expired(struct pico_frame *f);
00141 int pico_icmp4_packet_filtered(struct pico_frame *f);
00142 
00143 int pico_icmp4_ping(char *dst, int count, int interval, int timeout, int size, void (*cb)(struct pico_icmp4_stats *));
00144 #define PICO_PING_ERR_REPLIED 0
00145 #define PICO_PING_ERR_TIMEOUT 1
00146 #define PICO_PING_ERR_UNREACH 2
00147 #define PICO_PING_ERR_PENDING 0xFFFF
00148 
00149 #endif