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comparison: netwerk/sctp/src/user_ip_icmp.h
netwerk/sctp/src/user_ip_icmp.h
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| 1 /*- | |
| 2 * Copyright (c) 1982, 1986, 1993 | |
| 3 * The Regents of the University of California. All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * 4. Neither the name of the University nor the names of its contributors | |
| 14 * may be used to endorse or promote products derived from this software | |
| 15 * without specific prior written permission. | |
| 16 * | |
| 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 27 * SUCH DAMAGE. | |
| 28 * | |
| 29 */ | |
| 30 | |
| 31 #ifndef _USER_IP_ICMP_H_ | |
| 32 #define _USER_IP_ICMP_H_ | |
| 33 | |
| 34 /* | |
| 35 * Interface Control Message Protocol Definitions. | |
| 36 * Per RFC 792, September 1981. | |
| 37 */ | |
| 38 | |
| 39 /* | |
| 40 * Internal of an ICMP Router Advertisement | |
| 41 */ | |
| 42 struct icmp_ra_addr { | |
| 43 u_int32_t ira_addr; | |
| 44 u_int32_t ira_preference; | |
| 45 }; | |
| 46 | |
| 47 /* | |
| 48 * Structure of an icmp header. | |
| 49 */ | |
| 50 struct icmphdr { | |
| 51 u_char icmp_type; /* type of message, see below */ | |
| 52 u_char icmp_code; /* type sub code */ | |
| 53 u_short icmp_cksum; /* ones complement cksum of struct */ | |
| 54 }; | |
| 55 | |
| 56 #if defined(__Userspace_os_Windows) | |
| 57 struct icmp6_hdr { | |
| 58 u_int8_t icmp6_type; | |
| 59 u_int8_t icmp6_code; | |
| 60 u_int16_t icmp6_cksum; | |
| 61 union { | |
| 62 u_int32_t icmp6_un_data32[1]; | |
| 63 u_int16_t icmp6_un_data16[2]; | |
| 64 u_int8_t icmp6_un_data8[4]; | |
| 65 } icmp6_dataun; | |
| 66 } __packed; | |
| 67 | |
| 68 #define icmp6_data32 icmp6_dataun.icmp6_un_data32 | |
| 69 #define icmp6_mtu icmp6_data32[0] | |
| 70 #endif | |
| 71 | |
| 72 /* | |
| 73 * Structure of an icmp packet. | |
| 74 * | |
| 75 * XXX: should start with a struct icmphdr. | |
| 76 */ | |
| 77 struct icmp { | |
| 78 u_char icmp_type; /* type of message, see below */ | |
| 79 u_char icmp_code; /* type sub code */ | |
| 80 u_short icmp_cksum; /* ones complement cksum of struct */ | |
| 81 union { | |
| 82 u_char ih_pptr; /* ICMP_PARAMPROB */ | |
| 83 struct in_addr ih_gwaddr; /* ICMP_REDIRECT */ | |
| 84 struct ih_idseq { | |
| 85 uint16_t icd_id; /* network format */ | |
| 86 uint16_t icd_seq; /* network format */ | |
| 87 } ih_idseq; | |
| 88 int ih_void; | |
| 89 | |
| 90 /* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */ | |
| 91 struct ih_pmtu { | |
| 92 uint16_t ipm_void; /* network format */ | |
| 93 uint16_t ipm_nextmtu; /* network format */ | |
| 94 } ih_pmtu; | |
| 95 | |
| 96 struct ih_rtradv { | |
| 97 u_char irt_num_addrs; | |
| 98 u_char irt_wpa; | |
| 99 u_int16_t irt_lifetime; | |
| 100 } ih_rtradv; | |
| 101 } icmp_hun; | |
| 102 #define icmp_pptr icmp_hun.ih_pptr | |
| 103 #define icmp_gwaddr icmp_hun.ih_gwaddr | |
| 104 #define icmp_id icmp_hun.ih_idseq.icd_id | |
| 105 #define icmp_seq icmp_hun.ih_idseq.icd_seq | |
| 106 #define icmp_void icmp_hun.ih_void | |
| 107 #define icmp_pmvoid icmp_hun.ih_pmtu.ipm_void | |
| 108 #define icmp_nextmtu icmp_hun.ih_pmtu.ipm_nextmtu | |
| 109 #define icmp_num_addrs icmp_hun.ih_rtradv.irt_num_addrs | |
| 110 #define icmp_wpa icmp_hun.ih_rtradv.irt_wpa | |
| 111 #define icmp_lifetime icmp_hun.ih_rtradv.irt_lifetime | |
| 112 union { | |
| 113 struct id_ts { /* ICMP Timestamp */ | |
| 114 /* | |
| 115 * The next 3 fields are in network format, | |
| 116 * milliseconds since 00:00 GMT | |
| 117 */ | |
| 118 uint32_t its_otime; /* Originate */ | |
| 119 uint32_t its_rtime; /* Receive */ | |
| 120 uint32_t its_ttime; /* Transmit */ | |
| 121 } id_ts; | |
| 122 struct id_ip { | |
| 123 struct ip idi_ip; | |
| 124 /* options and then 64 bits of data */ | |
| 125 } id_ip; | |
| 126 struct icmp_ra_addr id_radv; | |
| 127 u_int32_t id_mask; | |
| 128 char id_data[1]; | |
| 129 } icmp_dun; | |
| 130 #define icmp_otime icmp_dun.id_ts.its_otime | |
| 131 #define icmp_rtime icmp_dun.id_ts.its_rtime | |
| 132 #define icmp_ttime icmp_dun.id_ts.its_ttime | |
| 133 #define icmp_ip icmp_dun.id_ip.idi_ip | |
| 134 #define icmp_radv icmp_dun.id_radv | |
| 135 #define icmp_mask icmp_dun.id_mask | |
| 136 #define icmp_data icmp_dun.id_data | |
| 137 }; | |
| 138 | |
| 139 /* | |
| 140 * Lower bounds on packet lengths for various types. | |
| 141 * For the error advice packets must first insure that the | |
| 142 * packet is large enough to contain the returned ip header. | |
| 143 * Only then can we do the check to see if 64 bits of packet | |
| 144 * data have been returned, since we need to check the returned | |
| 145 * ip header length. | |
| 146 */ | |
| 147 #define ICMP_MINLEN 8 /* abs minimum */ | |
| 148 #define ICMP_TSLEN (8 + 3 * sizeof (uint32_t)) /* timestamp */ | |
| 149 #define ICMP_MASKLEN 12 /* address mask */ | |
| 150 #define ICMP_ADVLENMIN (8 + sizeof (struct ip) + 8) /* min */ | |
| 151 #define ICMP_ADVLEN(p) (8 + ((p)->icmp_ip.ip_hl << 2) + 8) | |
| 152 /* N.B.: must separately check that ip_hl >= 5 */ | |
| 153 | |
| 154 /* | |
| 155 * Definition of type and code field values. | |
| 156 */ | |
| 157 #define ICMP_ECHOREPLY 0 /* echo reply */ | |
| 158 #define ICMP_UNREACH 3 /* dest unreachable, codes: */ | |
| 159 #define ICMP_UNREACH_NET 0 /* bad net */ | |
| 160 #define ICMP_UNREACH_HOST 1 /* bad host */ | |
| 161 #define ICMP_UNREACH_PROTOCOL 2 /* bad protocol */ | |
| 162 #define ICMP_UNREACH_PORT 3 /* bad port */ | |
| 163 #define ICMP_UNREACH_NEEDFRAG 4 /* IP_DF caused drop */ | |
| 164 #define ICMP_UNREACH_SRCFAIL 5 /* src route failed */ | |
| 165 #define ICMP_UNREACH_NET_UNKNOWN 6 /* unknown net */ | |
| 166 #define ICMP_UNREACH_HOST_UNKNOWN 7 /* unknown host */ | |
| 167 #define ICMP_UNREACH_ISOLATED 8 /* src host isolated */ | |
| 168 #define ICMP_UNREACH_NET_PROHIB 9 /* prohibited access */ | |
| 169 #define ICMP_UNREACH_HOST_PROHIB 10 /* ditto */ | |
| 170 #define ICMP_UNREACH_TOSNET 11 /* bad tos for net */ | |
| 171 #define ICMP_UNREACH_TOSHOST 12 /* bad tos for host */ | |
| 172 #define ICMP_UNREACH_FILTER_PROHIB 13 /* admin prohib */ | |
| 173 #define ICMP_UNREACH_HOST_PRECEDENCE 14 /* host prec vio. */ | |
| 174 #define ICMP_UNREACH_PRECEDENCE_CUTOFF 15 /* prec cutoff */ | |
| 175 #define ICMP_SOURCEQUENCH 4 /* packet lost, slow down */ | |
| 176 #define ICMP_REDIRECT 5 /* shorter route, codes: */ | |
| 177 #define ICMP_REDIRECT_NET 0 /* for network */ | |
| 178 #define ICMP_REDIRECT_HOST 1 /* for host */ | |
| 179 #define ICMP_REDIRECT_TOSNET 2 /* for tos and net */ | |
| 180 #define ICMP_REDIRECT_TOSHOST 3 /* for tos and host */ | |
| 181 #define ICMP_ALTHOSTADDR 6 /* alternate host address */ | |
| 182 #define ICMP_ECHO 8 /* echo service */ | |
| 183 #define ICMP_ROUTERADVERT 9 /* router advertisement */ | |
| 184 #define ICMP_ROUTERADVERT_NORMAL 0 /* normal advertisement */ | |
| 185 #define ICMP_ROUTERADVERT_NOROUTE_COMMON 16 /* selective routing */ | |
| 186 #define ICMP_ROUTERSOLICIT 10 /* router solicitation */ | |
| 187 #define ICMP_TIMXCEED 11 /* time exceeded, code: */ | |
| 188 #define ICMP_TIMXCEED_INTRANS 0 /* ttl==0 in transit */ | |
| 189 #define ICMP_TIMXCEED_REASS 1 /* ttl==0 in reass */ | |
| 190 #define ICMP_PARAMPROB 12 /* ip header bad */ | |
| 191 #define ICMP_PARAMPROB_ERRATPTR 0 /* error at param ptr */ | |
| 192 #define ICMP_PARAMPROB_OPTABSENT 1 /* req. opt. absent */ | |
| 193 #define ICMP_PARAMPROB_LENGTH 2 /* bad length */ | |
| 194 #define ICMP_TSTAMP 13 /* timestamp request */ | |
| 195 #define ICMP_TSTAMPREPLY 14 /* timestamp reply */ | |
| 196 #define ICMP_IREQ 15 /* information request */ | |
| 197 #define ICMP_IREQREPLY 16 /* information reply */ | |
| 198 #define ICMP_MASKREQ 17 /* address mask request */ | |
| 199 #define ICMP_MASKREPLY 18 /* address mask reply */ | |
| 200 #define ICMP_TRACEROUTE 30 /* traceroute */ | |
| 201 #define ICMP_DATACONVERR 31 /* data conversion error */ | |
| 202 #define ICMP_MOBILE_REDIRECT 32 /* mobile host redirect */ | |
| 203 #define ICMP_IPV6_WHEREAREYOU 33 /* IPv6 where-are-you */ | |
| 204 #define ICMP_IPV6_IAMHERE 34 /* IPv6 i-am-here */ | |
| 205 #define ICMP_MOBILE_REGREQUEST 35 /* mobile registration req */ | |
| 206 #define ICMP_MOBILE_REGREPLY 36 /* mobile registration reply */ | |
| 207 #define ICMP_SKIP 39 /* SKIP */ | |
| 208 #define ICMP_PHOTURIS 40 /* Photuris */ | |
| 209 #define ICMP_PHOTURIS_UNKNOWN_INDEX 1 /* unknown sec index */ | |
| 210 #define ICMP_PHOTURIS_AUTH_FAILED 2 /* auth failed */ | |
| 211 #define ICMP_PHOTURIS_DECRYPT_FAILED 3 /* decrypt failed */ | |
| 212 | |
| 213 #define ICMP_MAXTYPE 40 | |
| 214 | |
| 215 #define ICMP_INFOTYPE(type) \ | |
| 216 ((type) == ICMP_ECHOREPLY || (type) == ICMP_ECHO || \ | |
| 217 (type) == ICMP_ROUTERADVERT || (type) == ICMP_ROUTERSOLICIT || \ | |
| 218 (type) == ICMP_TSTAMP || (type) == ICMP_TSTAMPREPLY || \ | |
| 219 (type) == ICMP_IREQ || (type) == ICMP_IREQREPLY || \ | |
| 220 (type) == ICMP_MASKREQ || (type) == ICMP_MASKREPLY) | |
| 221 | |
| 222 | |
| 223 #endif |
