contrib/tcpdump/bootp.h

   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 \f
  62
  63 /*
  64  * RFC1048 tag values used to specify what information is being supplied in
  65  * the vendor field of the packet.
  66  */
  67
  68 #define TAG_PAD                 ((u_int8_t)   0)
  69 #define TAG_SUBNET_MASK         ((u_int8_t)   1)
  70 #define TAG_TIME_OFFSET         ((u_int8_t)   2)
  71 #define TAG_GATEWAY             ((u_int8_t)   3)
  72 #define TAG_TIME_SERVER         ((u_int8_t)   4)
  73 #define TAG_NAME_SERVER         ((u_int8_t)   5)
  74 #define TAG_DOMAIN_SERVER       ((u_int8_t)   6)
  75 #define TAG_LOG_SERVER          ((u_int8_t)   7)
  76 #define TAG_COOKIE_SERVER       ((u_int8_t)   8)
  77 #define TAG_LPR_SERVER          ((u_int8_t)   9)
  78 #define TAG_IMPRESS_SERVER      ((u_int8_t)  10)
  79 #define TAG_RLP_SERVER          ((u_int8_t)  11)
  80 #define TAG_HOSTNAME            ((u_int8_t)  12)
  81 #define TAG_BOOTSIZE            ((u_int8_t)  13)
  82 #define TAG_END                 ((u_int8_t) 255)
  83 /* RFC1497 tags */
  84 #define TAG_DUMPPATH            ((u_int8_t)  14)
  85 #define TAG_DOMAINNAME          ((u_int8_t)  15)
  86 #define TAG_SWAP_SERVER         ((u_int8_t)  16)
  87 #define TAG_ROOTPATH            ((u_int8_t)  17)
  88 #define TAG_EXTPATH             ((u_int8_t)  18)
  89 /* RFC2132 */
  90 #define TAG_IP_FORWARD          ((u_int8_t)  19)
  91 #define TAG_NL_SRCRT            ((u_int8_t)  20)
  92 #define TAG_PFILTERS            ((u_int8_t)  21)
  93 #define TAG_REASS_SIZE          ((u_int8_t)  22)
  94 #define TAG_DEF_TTL             ((u_int8_t)  23)
  95 #define TAG_MTU_TIMEOUT         ((u_int8_t)  24)
  96 #define TAG_MTU_TABLE           ((u_int8_t)  25)
  97 #define TAG_INT_MTU             ((u_int8_t)  26)
  98 #define TAG_LOCAL_SUBNETS       ((u_int8_t)  27)
  99 #define TAG_BROAD_ADDR          ((u_int8_t)  28)
 100 #define TAG_DO_MASK_DISC        ((u_int8_t)  29)
 101 #define TAG_SUPPLY_MASK         ((u_int8_t)  30)
 102 #define TAG_DO_RDISC            ((u_int8_t)  31)
 103 #define TAG_RTR_SOL_ADDR        ((u_int8_t)  32)
 104 #define TAG_STATIC_ROUTE        ((u_int8_t)  33)
 105 #define TAG_USE_TRAILERS        ((u_int8_t)  34)
 106 #define TAG_ARP_TIMEOUT         ((u_int8_t)  35)
 107 #define TAG_ETH_ENCAP           ((u_int8_t)  36)
 108 #define TAG_TCP_TTL             ((u_int8_t)  37)
 109 #define TAG_TCP_KEEPALIVE       ((u_int8_t)  38)
 110 #define TAG_KEEPALIVE_GO        ((u_int8_t)  39)
 111 #define TAG_NIS_DOMAIN          ((u_int8_t)  40)
 112 #define TAG_NIS_SERVERS         ((u_int8_t)  41)
 113 #define TAG_NTP_SERVERS         ((u_int8_t)  42)
 114 #define TAG_VENDOR_OPTS         ((u_int8_t)  43)
 115 #define TAG_NETBIOS_NS          ((u_int8_t)  44)
 116 #define TAG_NETBIOS_DDS         ((u_int8_t)  45)
 117 #define TAG_NETBIOS_NODE        ((u_int8_t)  46)
 118 #define TAG_NETBIOS_SCOPE       ((u_int8_t)  47)
 119 #define TAG_XWIN_FS             ((u_int8_t)  48)
 120 #define TAG_XWIN_DM             ((u_int8_t)  49)
 121 #define TAG_NIS_P_DOMAIN        ((u_int8_t)  64)
 122 #define TAG_NIS_P_SERVERS       ((u_int8_t)  65)
 123 #define TAG_MOBILE_HOME         ((u_int8_t)  68)
 124 #define TAG_SMPT_SERVER         ((u_int8_t)  69)
 125 #define TAG_POP3_SERVER         ((u_int8_t)  70)
 126 #define TAG_NNTP_SERVER         ((u_int8_t)  71)
 127 #define TAG_WWW_SERVER          ((u_int8_t)  72)
 128 #define TAG_FINGER_SERVER       ((u_int8_t)  73)
 129 #define TAG_IRC_SERVER          ((u_int8_t)  74)
 130 #define TAG_STREETTALK_SRVR     ((u_int8_t)  75)
 131 #define TAG_STREETTALK_STDA     ((u_int8_t)  76)
 132 /* DHCP options */
 133 #define TAG_REQUESTED_IP        ((u_int8_t)  50)
 134 #define TAG_IP_LEASE            ((u_int8_t)  51)
 135 #define TAG_OPT_OVERLOAD        ((u_int8_t)  52)
 136 #define TAG_TFTP_SERVER         ((u_int8_t)  66)
 137 #define TAG_BOOTFILENAME        ((u_int8_t)  67)
 138 #define TAG_DHCP_MESSAGE        ((u_int8_t)  53)
 139 #define TAG_SERVER_ID           ((u_int8_t)  54)
 140 #define TAG_PARM_REQUEST        ((u_int8_t)  55)
 141 #define TAG_MESSAGE             ((u_int8_t)  56)
 142 #define TAG_MAX_MSG_SIZE        ((u_int8_t)  57)
 143 #define TAG_RENEWAL_TIME        ((u_int8_t)  58)
 144 #define TAG_REBIND_TIME         ((u_int8_t)  59)
 145 #define TAG_VENDOR_CLASS        ((u_int8_t)  60)
 146 #define TAG_CLIENT_ID           ((u_int8_t)  61)
 147 /* RFC 2241 */
 148 #define TAG_NDS_SERVERS         ((u_int8_t)  85)
 149 #define TAG_NDS_TREE_NAME       ((u_int8_t)  86)
 150 #define TAG_NDS_CONTEXT         ((u_int8_t)  87)
 151 /* RFC 2242 */
 152 #define TAG_NDS_IPDOMAIN        ((u_int8_t)  62)
 153 #define TAG_NDS_IPINFO          ((u_int8_t)  63)
 154 /* RFC 2485 */
 155 #define TAG_OPEN_GROUP_UAP      ((u_int8_t)  98)
 156 /* RFC 2563 */
 157 #define TAG_DISABLE_AUTOCONF    ((u_int8_t) 116)
 158 /* RFC 2610 */
 159 #define TAG_SLP_DA              ((u_int8_t)  78)
 160 #define TAG_SLP_SCOPE           ((u_int8_t)  79)
 161 /* RFC 2937 */
 162 #define TAG_NS_SEARCH           ((u_int8_t) 117)
 163 /* RFC 3011 */
 164 #define TAG_IP4_SUBNET_SELECT   ((u_int8_t) 118)
 165 /* RFC 3442 */
 166 #define TAG_CLASSLESS_STATIC_RT ((u_int8_t) 121)
 167 #define TAG_CLASSLESS_STA_RT_MS ((u_int8_t) 249)
 168 /* ftp://ftp.isi.edu/.../assignments/bootp-dhcp-extensions */
 169 #define TAG_USER_CLASS          ((u_int8_t)  77)
 170 #define TAG_SLP_NAMING_AUTH     ((u_int8_t)  80)
 171 #define TAG_CLIENT_FQDN         ((u_int8_t)  81)
 172 #define TAG_AGENT_CIRCUIT       ((u_int8_t)  82)
 173 #define TAG_AGENT_REMOTE        ((u_int8_t)  83)
 174 #define TAG_AGENT_MASK          ((u_int8_t)  84)
 175 #define TAG_TZ_STRING           ((u_int8_t)  88)
 176 #define TAG_FQDN_OPTION         ((u_int8_t)  89)
 177 #define TAG_AUTH                ((u_int8_t)  90)
 178 #define TAG_VINES_SERVERS       ((u_int8_t)  91)
 179 #define TAG_SERVER_RANK         ((u_int8_t)  92)
 180 #define TAG_CLIENT_ARCH         ((u_int8_t)  93)
 181 #define TAG_CLIENT_NDI          ((u_int8_t)  94)
 182 #define TAG_CLIENT_GUID         ((u_int8_t)  97)
 183 #define TAG_LDAP_URL            ((u_int8_t)  95)
 184 #define TAG_6OVER4              ((u_int8_t)  96)
 185 #define TAG_PRINTER_NAME        ((u_int8_t) 100)
 186 #define TAG_MDHCP_SERVER        ((u_int8_t) 101)
 187 #define TAG_IPX_COMPAT          ((u_int8_t) 110)
 188 #define TAG_NETINFO_PARENT      ((u_int8_t) 112)
 189 #define TAG_NETINFO_PARENT_TAG  ((u_int8_t) 113)
 190 #define TAG_URL                 ((u_int8_t) 114)
 191 #define TAG_FAILOVER            ((u_int8_t) 115)
 192 #define TAG_EXTENDED_REQUEST    ((u_int8_t) 126)
 193 #define TAG_EXTENDED_OPTION     ((u_int8_t) 127)
 194
 195
 196 /* DHCP Message types (values for TAG_DHCP_MESSAGE option) */
 197 #define         DHCPDISCOVER    1
 198 #define         DHCPOFFER       2
 199 #define         DHCPREQUEST     3
 200 #define         DHCPDECLINE     4
 201 #define         DHCPACK         5
 202 #define         DHCPNAK         6
 203 #define         DHCPRELEASE     7
 204 #define         DHCPINFORM      8
 205
 206
 207 /*
 208  * "vendor" data permitted for CMU bootp clients.
 209  */
 210
 211 struct cmu_vend {
 212         u_int8_t        v_magic[4];     /* magic number */
 213         u_int32_t       v_flags;        /* flags/opcodes, etc. */
 214         struct in_addr  v_smask;        /* Subnet mask */
 215         struct in_addr  v_dgate;        /* Default gateway */
 216         struct in_addr  v_dns1, v_dns2; /* Domain name servers */
 217         struct in_addr  v_ins1, v_ins2; /* IEN-116 name servers */
 218         struct in_addr  v_ts1, v_ts2;   /* Time servers */
 219         u_int8_t        v_unused[24];   /* currently unused */
 220 } UNALIGNED;
 221
 222
 223 /* v_flags values */
 224 #define VF_SMASK        1       /* Subnet mask field contains valid data */
 225
 226 /* RFC 4702 DHCP Client FQDN Option */
 227
 228 #define CLIENT_FQDN_FLAGS_S     0x01
 229 #define CLIENT_FQDN_FLAGS_O     0x02
 230 #define CLIENT_FQDN_FLAGS_E     0x04
 231 #define CLIENT_FQDN_FLAGS_N     0x08