1 /* @(#) $Header: /tcpdump/master/tcpdump/bootp.h,v 1.19 2008-04-22 09:46:03 hannes Exp $ (LBL) */ 2 /* 3 * Bootstrap Protocol (BOOTP). RFC951 and RFC1048. 4 * 5 * This file specifies the "implementation-independent" BOOTP protocol 6 * information which is common to both client and server. 7 * 8 * Copyright 1988 by Carnegie Mellon. 9 * 10 * Permission to use, copy, modify, and distribute this program for any 11 * purpose and without fee is hereby granted, provided that this copyright 12 * and permission notice appear on all copies and supporting documentation, 13 * the name of Carnegie Mellon not be used in advertising or publicity 14 * pertaining to distribution of the program without specific prior 15 * permission, and notice be given in supporting documentation that copying 16 * and distribution is by permission of Carnegie Mellon and Stanford 17 * University. Carnegie Mellon makes no representations about the 18 * suitability of this software for any purpose. It is provided "as is" 19 * without express or implied warranty. 20 */ 21 22 23 struct bootp { 24 u_int8_t bp_op; /* packet opcode type */ 25 u_int8_t bp_htype; /* hardware addr type */ 26 u_int8_t bp_hlen; /* hardware addr length */ 27 u_int8_t bp_hops; /* gateway hops */ 28 u_int32_t bp_xid; /* transaction ID */ 29 u_int16_t bp_secs; /* seconds since boot began */ 30 u_int16_t bp_flags; /* flags - see bootp_flag_values[] 31 in print-bootp.c */ 32 struct in_addr bp_ciaddr; /* client IP address */ 33 struct in_addr bp_yiaddr; /* 'your' IP address */ 34 struct in_addr bp_siaddr; /* server IP address */ 35 struct in_addr bp_giaddr; /* gateway IP address */ 36 u_int8_t bp_chaddr[16]; /* client hardware address */ 37 u_int8_t bp_sname[64]; /* server host name */ 38 u_int8_t bp_file[128]; /* boot file name */ 39 u_int8_t bp_vend[64]; /* vendor-specific area */ 40 } UNALIGNED; 41 42 /* 43 * UDP port numbers, server and client. 44 */ 45 #define IPPORT_BOOTPS 67 46 #define IPPORT_BOOTPC 68 47 48 #define BOOTPREPLY 2 49 #define BOOTPREQUEST 1 50 51 /* 52 * Vendor magic cookie (v_magic) for CMU 53 */ 54 #define VM_CMU "CMU" 55 56 /* 57 * Vendor magic cookie (v_magic) for RFC1048 58 */ 59 #define VM_RFC1048 { 99, 130, 83, 99 } 60 61 62 64 /* 65 * RFC1048 tag values used to specify what information is being supplied in 66 * the vendor field of the packet. 67 */ 68 69 #define TAG_PAD ((u_int8_t) 0) 70 #define TAG_SUBNET_MASK ((u_int8_t) 1) 71 #define TAG_TIME_OFFSET ((u_int8_t) 2) 72 #define TAG_GATEWAY ((u_int8_t) 3) 73 #define TAG_TIME_SERVER ((u_int8_t) 4) 74 #define TAG_NAME_SERVER ((u_int8_t) 5) 75 #define TAG_DOMAIN_SERVER ((u_int8_t) 6) 76 #define TAG_LOG_SERVER ((u_int8_t) 7) 77 #define TAG_COOKIE_SERVER ((u_int8_t) 8) 78 #define TAG_LPR_SERVER ((u_int8_t) 9) 79 #define TAG_IMPRESS_SERVER ((u_int8_t) 10) 80 #define TAG_RLP_SERVER ((u_int8_t) 11) 81 #define TAG_HOSTNAME ((u_int8_t) 12) 82 #define TAG_BOOTSIZE ((u_int8_t) 13) 83 #define TAG_END ((u_int8_t) 255) 84 /* RFC1497 tags */ 85 #define TAG_DUMPPATH ((u_int8_t) 14) 86 #define TAG_DOMAINNAME ((u_int8_t) 15) 87 #define TAG_SWAP_SERVER ((u_int8_t) 16) 88 #define TAG_ROOTPATH ((u_int8_t) 17) 89 #define TAG_EXTPATH ((u_int8_t) 18) 90 /* RFC2132 */ 91 #define TAG_IP_FORWARD ((u_int8_t) 19) 92 #define TAG_NL_SRCRT ((u_int8_t) 20) 93 #define TAG_PFILTERS ((u_int8_t) 21) 94 #define TAG_REASS_SIZE ((u_int8_t) 22) 95 #define TAG_DEF_TTL ((u_int8_t) 23) 96 #define TAG_MTU_TIMEOUT ((u_int8_t) 24) 97 #define TAG_MTU_TABLE ((u_int8_t) 25) 98 #define TAG_INT_MTU ((u_int8_t) 26) 99 #define TAG_LOCAL_SUBNETS ((u_int8_t) 27) 100 #define TAG_BROAD_ADDR ((u_int8_t) 28) 101 #define TAG_DO_MASK_DISC ((u_int8_t) 29) 102 #define TAG_SUPPLY_MASK ((u_int8_t) 30) 103 #define TAG_DO_RDISC ((u_int8_t) 31) 104 #define TAG_RTR_SOL_ADDR ((u_int8_t) 32) 105 #define TAG_STATIC_ROUTE ((u_int8_t) 33) 106 #define TAG_USE_TRAILERS ((u_int8_t) 34) 107 #define TAG_ARP_TIMEOUT ((u_int8_t) 35) 108 #define TAG_ETH_ENCAP ((u_int8_t) 36) 109 #define TAG_TCP_TTL ((u_int8_t) 37) 110 #define TAG_TCP_KEEPALIVE ((u_int8_t) 38) 111 #define TAG_KEEPALIVE_GO ((u_int8_t) 39) 112 #define TAG_NIS_DOMAIN ((u_int8_t) 40) 113 #define TAG_NIS_SERVERS ((u_int8_t) 41) 114 #define TAG_NTP_SERVERS ((u_int8_t) 42) 115 #define TAG_VENDOR_OPTS ((u_int8_t) 43) 116 #define TAG_NETBIOS_NS ((u_int8_t) 44) 117 #define TAG_NETBIOS_DDS ((u_int8_t) 45) 118 #define TAG_NETBIOS_NODE ((u_int8_t) 46) 119 #define TAG_NETBIOS_SCOPE ((u_int8_t) 47) 120 #define TAG_XWIN_FS ((u_int8_t) 48) 121 #define TAG_XWIN_DM ((u_int8_t) 49) 122 #define TAG_NIS_P_DOMAIN ((u_int8_t) 64) 123 #define TAG_NIS_P_SERVERS ((u_int8_t) 65) 124 #define TAG_MOBILE_HOME ((u_int8_t) 68) 125 #define TAG_SMPT_SERVER ((u_int8_t) 69) 126 #define TAG_POP3_SERVER ((u_int8_t) 70) 127 #define TAG_NNTP_SERVER ((u_int8_t) 71) 128 #define TAG_WWW_SERVER ((u_int8_t) 72) 129 #define TAG_FINGER_SERVER ((u_int8_t) 73) 130 #define TAG_IRC_SERVER ((u_int8_t) 74) 131 #define TAG_STREETTALK_SRVR ((u_int8_t) 75) 132 #define TAG_STREETTALK_STDA ((u_int8_t) 76) 133 /* DHCP options */ 134 #define TAG_REQUESTED_IP ((u_int8_t) 50) 135 #define TAG_IP_LEASE ((u_int8_t) 51) 136 #define TAG_OPT_OVERLOAD ((u_int8_t) 52) 137 #define TAG_TFTP_SERVER ((u_int8_t) 66) 138 #define TAG_BOOTFILENAME ((u_int8_t) 67) 139 #define TAG_DHCP_MESSAGE ((u_int8_t) 53) 140 #define TAG_SERVER_ID ((u_int8_t) 54) 141 #define TAG_PARM_REQUEST ((u_int8_t) 55) 142 #define TAG_MESSAGE ((u_int8_t) 56) 143 #define TAG_MAX_MSG_SIZE ((u_int8_t) 57) 144 #define TAG_RENEWAL_TIME ((u_int8_t) 58) 145 #define TAG_REBIND_TIME ((u_int8_t) 59) 146 #define TAG_VENDOR_CLASS ((u_int8_t) 60) 147 #define TAG_CLIENT_ID ((u_int8_t) 61) 148 /* RFC 2241 */ 149 #define TAG_NDS_SERVERS ((u_int8_t) 85) 150 #define TAG_NDS_TREE_NAME ((u_int8_t) 86) 151 #define TAG_NDS_CONTEXT ((u_int8_t) 87) 152 /* RFC 2242 */ 153 #define TAG_NDS_IPDOMAIN ((u_int8_t) 62) 154 #define TAG_NDS_IPINFO ((u_int8_t) 63) 155 /* RFC 2485 */ 156 #define TAG_OPEN_GROUP_UAP ((u_int8_t) 98) 157 /* RFC 2563 */ 158 #define TAG_DISABLE_AUTOCONF ((u_int8_t) 116) 159 /* RFC 2610 */ 160 #define TAG_SLP_DA ((u_int8_t) 78) 161 #define TAG_SLP_SCOPE ((u_int8_t) 79) 162 /* RFC 2937 */ 163 #define TAG_NS_SEARCH ((u_int8_t) 117) 164 /* RFC 3011 */ 165 #define TAG_IP4_SUBNET_SELECT ((u_int8_t) 118) 166 /* RFC 3442 */ 167 #define TAG_CLASSLESS_STATIC_RT ((u_int8_t) 121) 168 #define TAG_CLASSLESS_STA_RT_MS ((u_int8_t) 249) 169 /* ftp://ftp.isi.edu/.../assignments/bootp-dhcp-extensions */ 170 #define TAG_USER_CLASS ((u_int8_t) 77) 171 #define TAG_SLP_NAMING_AUTH ((u_int8_t) 80) 172 #define TAG_CLIENT_FQDN ((u_int8_t) 81) 173 #define TAG_AGENT_CIRCUIT ((u_int8_t) 82) 174 #define TAG_AGENT_REMOTE ((u_int8_t) 83) 175 #define TAG_AGENT_MASK ((u_int8_t) 84) 176 #define TAG_TZ_STRING ((u_int8_t) 88) 177 #define TAG_FQDN_OPTION ((u_int8_t) 89) 178 #define TAG_AUTH ((u_int8_t) 90) 179 #define TAG_VINES_SERVERS ((u_int8_t) 91) 180 #define TAG_SERVER_RANK ((u_int8_t) 92) 181 #define TAG_CLIENT_ARCH ((u_int8_t) 93) 182 #define TAG_CLIENT_NDI ((u_int8_t) 94) 183 #define TAG_CLIENT_GUID ((u_int8_t) 97) 184 #define TAG_LDAP_URL ((u_int8_t) 95) 185 #define TAG_6OVER4 ((u_int8_t) 96) 186 #define TAG_PRINTER_NAME ((u_int8_t) 100) 187 #define TAG_MDHCP_SERVER ((u_int8_t) 101) 188 #define TAG_IPX_COMPAT ((u_int8_t) 110) 189 #define TAG_NETINFO_PARENT ((u_int8_t) 112) 190 #define TAG_NETINFO_PARENT_TAG ((u_int8_t) 113) 191 #define TAG_URL ((u_int8_t) 114) 192 #define TAG_FAILOVER ((u_int8_t) 115) 193 #define TAG_EXTENDED_REQUEST ((u_int8_t) 126) 194 #define TAG_EXTENDED_OPTION ((u_int8_t) 127) 195 196 197 /* DHCP Message types (values for TAG_DHCP_MESSAGE option) */ 198 #define DHCPDISCOVER 1 199 #define DHCPOFFER 2 200 #define DHCPREQUEST 3 201 #define DHCPDECLINE 4 202 #define DHCPACK 5 203 #define DHCPNAK 6 204 #define DHCPRELEASE 7 205 #define DHCPINFORM 8 206 207 208 /* 209 * "vendor" data permitted for CMU bootp clients. 210 */ 211 212 struct cmu_vend { 213 u_int8_t v_magic[4]; /* magic number */ 214 u_int32_t v_flags; /* flags/opcodes, etc. */ 215 struct in_addr v_smask; /* Subnet mask */ 216 struct in_addr v_dgate; /* Default gateway */ 217 struct in_addr v_dns1, v_dns2; /* Domain name servers */ 218 struct in_addr v_ins1, v_ins2; /* IEN-116 name servers */ 219 struct in_addr v_ts1, v_ts2; /* Time servers */ 220 u_int8_t v_unused[24]; /* currently unused */ 221 } UNALIGNED; 222 223 224 /* v_flags values */ 225 #define VF_SMASK 1 /* Subnet mask field contains valid data */ 226 227 /* RFC 4702 DHCP Client FQDN Option */ 228 229 #define CLIENT_FQDN_FLAGS_S 0x01 230 #define CLIENT_FQDN_FLAGS_O 0x02 231 #define CLIENT_FQDN_FLAGS_E 0x04 232 #define CLIENT_FQDN_FLAGS_N 0x08 233
