| /* |
| * Copyright (c) 1990, 1991, 1993, 1994, 1995, 1996, 1997 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that: (1) source code distributions |
| * retain the above copyright notice and this paragraph in its entirety, (2) |
| * distributions including binary code include the above copyright notice and |
| * this paragraph in its entirety in the documentation or other materials |
| * provided with the distribution, and (3) all advertising materials mentioning |
| * features or use of this software display the following acknowledgement: |
| * ``This product includes software developed by the University of California, |
| * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| * the University nor the names of its contributors may be used to endorse |
| * or promote products derived from this software without specific prior |
| * written permission. |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * Format and print bootp packets. |
| */ |
| #ifndef lint |
| static const char rcsid[] _U_ = |
| "@(#) $Header: /tcpdump/master/tcpdump/print-bootp.c,v 1.89 2008-04-22 09:45:08 hannes Exp $ (LBL)"; |
| #endif |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <tcpdump-stdinc.h> |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include "interface.h" |
| #include "addrtoname.h" |
| #include "extract.h" |
| #include "ether.h" |
| #include "bootp.h" |
| |
| static void rfc1048_print(const u_char *); |
| static void cmu_print(const u_char *); |
| static char *client_fqdn_flags(u_int flags); |
| |
| static char tstr[] = " [|bootp]"; |
| |
| static const struct tok bootp_flag_values[] = { |
| { 0x8000, "Broadcast" }, |
| { 0, NULL} |
| }; |
| |
| static const struct tok bootp_op_values[] = { |
| { BOOTPREQUEST, "Request" }, |
| { BOOTPREPLY, "Reply" }, |
| { 0, NULL} |
| }; |
| |
| /* |
| * Print bootp requests |
| */ |
| void |
| bootp_print(register const u_char *cp, u_int length) |
| { |
| register const struct bootp *bp; |
| static const u_char vm_cmu[4] = VM_CMU; |
| static const u_char vm_rfc1048[4] = VM_RFC1048; |
| |
| bp = (const struct bootp *)cp; |
| TCHECK(bp->bp_op); |
| |
| printf("BOOTP/DHCP, %s", |
| tok2str(bootp_op_values, "unknown (0x%02x)", bp->bp_op)); |
| |
| if (bp->bp_htype == 1 && bp->bp_hlen == 6 && bp->bp_op == BOOTPREQUEST) { |
| TCHECK2(bp->bp_chaddr[0], 6); |
| printf(" from %s", etheraddr_string(bp->bp_chaddr)); |
| } |
| |
| printf(", length %u", length); |
| |
| if (!vflag) |
| return; |
| |
| TCHECK(bp->bp_secs); |
| |
| /* The usual hardware address type is 1 (10Mb Ethernet) */ |
| if (bp->bp_htype != 1) |
| printf(", htype %d", bp->bp_htype); |
| |
| /* The usual length for 10Mb Ethernet address is 6 bytes */ |
| if (bp->bp_htype != 1 || bp->bp_hlen != 6) |
| printf(", hlen %d", bp->bp_hlen); |
| |
| /* Only print interesting fields */ |
| if (bp->bp_hops) |
| printf(", hops %d", bp->bp_hops); |
| if (bp->bp_xid) |
| printf(", xid 0x%x", EXTRACT_32BITS(&bp->bp_xid)); |
| if (bp->bp_secs) |
| printf(", secs %d", EXTRACT_16BITS(&bp->bp_secs)); |
| |
| printf(", Flags [%s]", |
| bittok2str(bootp_flag_values, "none", EXTRACT_16BITS(&bp->bp_flags))); |
| if (vflag > 1) |
| printf(" (0x%04x)", EXTRACT_16BITS(&bp->bp_flags)); |
| |
| /* Client's ip address */ |
| TCHECK(bp->bp_ciaddr); |
| if (bp->bp_ciaddr.s_addr) |
| printf("\n\t Client-IP %s", ipaddr_string(&bp->bp_ciaddr)); |
| |
| /* 'your' ip address (bootp client) */ |
| TCHECK(bp->bp_yiaddr); |
| if (bp->bp_yiaddr.s_addr) |
| printf("\n\t Your-IP %s", ipaddr_string(&bp->bp_yiaddr)); |
| |
| /* Server's ip address */ |
| TCHECK(bp->bp_siaddr); |
| if (bp->bp_siaddr.s_addr) |
| printf("\n\t Server-IP %s", ipaddr_string(&bp->bp_siaddr)); |
| |
| /* Gateway's ip address */ |
| TCHECK(bp->bp_giaddr); |
| if (bp->bp_giaddr.s_addr) |
| printf("\n\t Gateway-IP %s", ipaddr_string(&bp->bp_giaddr)); |
| |
| /* Client's Ethernet address */ |
| if (bp->bp_htype == 1 && bp->bp_hlen == 6) { |
| TCHECK2(bp->bp_chaddr[0], 6); |
| printf("\n\t Client-Ethernet-Address %s", etheraddr_string(bp->bp_chaddr)); |
| } |
| |
| TCHECK2(bp->bp_sname[0], 1); /* check first char only */ |
| if (*bp->bp_sname) { |
| printf("\n\t sname \""); |
| if (fn_print(bp->bp_sname, snapend)) { |
| putchar('"'); |
| fputs(tstr + 1, stdout); |
| return; |
| } |
| putchar('"'); |
| } |
| TCHECK2(bp->bp_file[0], 1); /* check first char only */ |
| if (*bp->bp_file) { |
| printf("\n\t file \""); |
| if (fn_print(bp->bp_file, snapend)) { |
| putchar('"'); |
| fputs(tstr + 1, stdout); |
| return; |
| } |
| putchar('"'); |
| } |
| |
| /* Decode the vendor buffer */ |
| TCHECK(bp->bp_vend[0]); |
| if (memcmp((const char *)bp->bp_vend, vm_rfc1048, |
| sizeof(u_int32_t)) == 0) |
| rfc1048_print(bp->bp_vend); |
| else if (memcmp((const char *)bp->bp_vend, vm_cmu, |
| sizeof(u_int32_t)) == 0) |
| cmu_print(bp->bp_vend); |
| else { |
| u_int32_t ul; |
| |
| ul = EXTRACT_32BITS(&bp->bp_vend); |
| if (ul != 0) |
| printf("\n\t Vendor-#0x%x", ul); |
| } |
| |
| return; |
| trunc: |
| fputs(tstr, stdout); |
| } |
| |
| /* |
| * The first character specifies the format to print: |
| * i - ip address (32 bits) |
| * p - ip address pairs (32 bits + 32 bits) |
| * l - long (32 bits) |
| * L - unsigned long (32 bits) |
| * s - short (16 bits) |
| * b - period-seperated decimal bytes (variable length) |
| * x - colon-seperated hex bytes (variable length) |
| * a - ascii string (variable length) |
| * B - on/off (8 bits) |
| * $ - special (explicit code to handle) |
| */ |
| static struct tok tag2str[] = { |
| /* RFC1048 tags */ |
| { TAG_PAD, " PAD" }, |
| { TAG_SUBNET_MASK, "iSubnet-Mask" }, /* subnet mask (RFC950) */ |
| { TAG_TIME_OFFSET, "LTime-Zone" }, /* seconds from UTC */ |
| { TAG_GATEWAY, "iDefault-Gateway" }, /* default gateway */ |
| { TAG_TIME_SERVER, "iTime-Server" }, /* time servers (RFC868) */ |
| { TAG_NAME_SERVER, "iIEN-Name-Server" }, /* IEN name servers (IEN116) */ |
| { TAG_DOMAIN_SERVER, "iDomain-Name-Server" }, /* domain name (RFC1035) */ |
| { TAG_LOG_SERVER, "iLOG" }, /* MIT log servers */ |
| { TAG_COOKIE_SERVER, "iCS" }, /* cookie servers (RFC865) */ |
| { TAG_LPR_SERVER, "iLPR-Server" }, /* lpr server (RFC1179) */ |
| { TAG_IMPRESS_SERVER, "iIM" }, /* impress servers (Imagen) */ |
| { TAG_RLP_SERVER, "iRL" }, /* resource location (RFC887) */ |
| { TAG_HOSTNAME, "aHostname" }, /* ascii hostname */ |
| { TAG_BOOTSIZE, "sBS" }, /* 512 byte blocks */ |
| { TAG_END, " END" }, |
| /* RFC1497 tags */ |
| { TAG_DUMPPATH, "aDP" }, |
| { TAG_DOMAINNAME, "aDomain-Name" }, |
| { TAG_SWAP_SERVER, "iSS" }, |
| { TAG_ROOTPATH, "aRP" }, |
| { TAG_EXTPATH, "aEP" }, |
| /* RFC2132 tags */ |
| { TAG_IP_FORWARD, "BIPF" }, |
| { TAG_NL_SRCRT, "BSRT" }, |
| { TAG_PFILTERS, "pPF" }, |
| { TAG_REASS_SIZE, "sRSZ" }, |
| { TAG_DEF_TTL, "bTTL" }, |
| { TAG_MTU_TIMEOUT, "lMTU-Timeout" }, |
| { TAG_MTU_TABLE, "sMTU-Table" }, |
| { TAG_INT_MTU, "sMTU" }, |
| { TAG_LOCAL_SUBNETS, "BLSN" }, |
| { TAG_BROAD_ADDR, "iBR" }, |
| { TAG_DO_MASK_DISC, "BMD" }, |
| { TAG_SUPPLY_MASK, "BMS" }, |
| { TAG_DO_RDISC, "BRouter-Discovery" }, |
| { TAG_RTR_SOL_ADDR, "iRSA" }, |
| { TAG_STATIC_ROUTE, "pStatic-Route" }, |
| { TAG_USE_TRAILERS, "BUT" }, |
| { TAG_ARP_TIMEOUT, "lAT" }, |
| { TAG_ETH_ENCAP, "BIE" }, |
| { TAG_TCP_TTL, "bTT" }, |
| { TAG_TCP_KEEPALIVE, "lKI" }, |
| { TAG_KEEPALIVE_GO, "BKG" }, |
| { TAG_NIS_DOMAIN, "aYD" }, |
| { TAG_NIS_SERVERS, "iYS" }, |
| { TAG_NTP_SERVERS, "iNTP" }, |
| { TAG_VENDOR_OPTS, "bVendor-Option" }, |
| { TAG_NETBIOS_NS, "iNetbios-Name-Server" }, |
| { TAG_NETBIOS_DDS, "iWDD" }, |
| { TAG_NETBIOS_NODE, "$Netbios-Node" }, |
| { TAG_NETBIOS_SCOPE, "aNetbios-Scope" }, |
| { TAG_XWIN_FS, "iXFS" }, |
| { TAG_XWIN_DM, "iXDM" }, |
| { TAG_NIS_P_DOMAIN, "sN+D" }, |
| { TAG_NIS_P_SERVERS, "iN+S" }, |
| { TAG_MOBILE_HOME, "iMH" }, |
| { TAG_SMPT_SERVER, "iSMTP" }, |
| { TAG_POP3_SERVER, "iPOP3" }, |
| { TAG_NNTP_SERVER, "iNNTP" }, |
| { TAG_WWW_SERVER, "iWWW" }, |
| { TAG_FINGER_SERVER, "iFG" }, |
| { TAG_IRC_SERVER, "iIRC" }, |
| { TAG_STREETTALK_SRVR, "iSTS" }, |
| { TAG_STREETTALK_STDA, "iSTDA" }, |
| { TAG_REQUESTED_IP, "iRequested-IP" }, |
| { TAG_IP_LEASE, "lLease-Time" }, |
| { TAG_OPT_OVERLOAD, "$OO" }, |
| { TAG_TFTP_SERVER, "aTFTP" }, |
| { TAG_BOOTFILENAME, "aBF" }, |
| { TAG_DHCP_MESSAGE, " DHCP-Message" }, |
| { TAG_SERVER_ID, "iServer-ID" }, |
| { TAG_PARM_REQUEST, "bParameter-Request" }, |
| { TAG_MESSAGE, "aMSG" }, |
| { TAG_MAX_MSG_SIZE, "sMSZ" }, |
| { TAG_RENEWAL_TIME, "lRN" }, |
| { TAG_REBIND_TIME, "lRB" }, |
| { TAG_VENDOR_CLASS, "aVendor-Class" }, |
| { TAG_CLIENT_ID, "$Client-ID" }, |
| /* RFC 2485 */ |
| { TAG_OPEN_GROUP_UAP, "aUAP" }, |
| /* RFC 2563 */ |
| { TAG_DISABLE_AUTOCONF, "BNOAUTO" }, |
| /* RFC 2610 */ |
| { TAG_SLP_DA, "bSLP-DA" }, /*"b" is a little wrong */ |
| { TAG_SLP_SCOPE, "bSLP-SCOPE" }, /*"b" is a little wrong */ |
| /* RFC 2937 */ |
| { TAG_NS_SEARCH, "sNSSEARCH" }, /* XXX 's' */ |
| /* RFC 3011 */ |
| { TAG_IP4_SUBNET_SELECT, "iSUBNET" }, |
| /* RFC 3442 */ |
| { TAG_CLASSLESS_STATIC_RT, "$Classless-Static-Route" }, |
| { TAG_CLASSLESS_STA_RT_MS, "$Classless-Static-Route-Microsoft" }, |
| /* http://www.iana.org/assignments/bootp-dhcp-extensions/index.htm */ |
| { TAG_USER_CLASS, "aCLASS" }, |
| { TAG_SLP_NAMING_AUTH, "aSLP-NA" }, |
| { TAG_CLIENT_FQDN, "$FQDN" }, |
| { TAG_AGENT_CIRCUIT, "$Agent-Information" }, |
| { TAG_AGENT_REMOTE, "bARMT" }, |
| { TAG_AGENT_MASK, "bAMSK" }, |
| { TAG_TZ_STRING, "aTZSTR" }, |
| { TAG_FQDN_OPTION, "bFQDNS" }, /* XXX 'b' */ |
| { TAG_AUTH, "bAUTH" }, /* XXX 'b' */ |
| { TAG_VINES_SERVERS, "iVINES" }, |
| { TAG_SERVER_RANK, "sRANK" }, |
| { TAG_CLIENT_ARCH, "sARCH" }, |
| { TAG_CLIENT_NDI, "bNDI" }, /* XXX 'b' */ |
| { TAG_CLIENT_GUID, "bGUID" }, /* XXX 'b' */ |
| { TAG_LDAP_URL, "aLDAP" }, |
| { TAG_6OVER4, "i6o4" }, |
| { TAG_PRINTER_NAME, "aPRTR" }, |
| { TAG_MDHCP_SERVER, "bMDHCP" }, /* XXX 'b' */ |
| { TAG_IPX_COMPAT, "bIPX" }, /* XXX 'b' */ |
| { TAG_NETINFO_PARENT, "iNI" }, |
| { TAG_NETINFO_PARENT_TAG, "aNITAG" }, |
| { TAG_URL, "aURL" }, |
| { TAG_FAILOVER, "bFAIL" }, /* XXX 'b' */ |
| { 0, NULL } |
| }; |
| /* 2-byte extended tags */ |
| static struct tok xtag2str[] = { |
| { 0, NULL } |
| }; |
| |
| /* DHCP "options overload" types */ |
| static struct tok oo2str[] = { |
| { 1, "file" }, |
| { 2, "sname" }, |
| { 3, "file+sname" }, |
| { 0, NULL } |
| }; |
| |
| /* NETBIOS over TCP/IP node type options */ |
| static struct tok nbo2str[] = { |
| { 0x1, "b-node" }, |
| { 0x2, "p-node" }, |
| { 0x4, "m-node" }, |
| { 0x8, "h-node" }, |
| { 0, NULL } |
| }; |
| |
| /* ARP Hardware types, for Client-ID option */ |
| static struct tok arp2str[] = { |
| { 0x1, "ether" }, |
| { 0x6, "ieee802" }, |
| { 0x7, "arcnet" }, |
| { 0xf, "frelay" }, |
| { 0x17, "strip" }, |
| { 0x18, "ieee1394" }, |
| { 0, NULL } |
| }; |
| |
| static struct tok dhcp_msg_values[] = { |
| { DHCPDISCOVER, "Discover" }, |
| { DHCPOFFER, "Offer" }, |
| { DHCPREQUEST, "Request" }, |
| { DHCPDECLINE, "Decline" }, |
| { DHCPACK, "ACK" }, |
| { DHCPNAK, "NACK" }, |
| { DHCPRELEASE, "Release" }, |
| { DHCPINFORM, "Inform" }, |
| { 0, NULL } |
| }; |
| |
| #define AGENT_SUBOPTION_CIRCUIT_ID 1 /* RFC 3046 */ |
| #define AGENT_SUBOPTION_REMOTE_ID 2 /* RFC 3046 */ |
| #define AGENT_SUBOPTION_SUBSCRIBER_ID 6 /* RFC 3993 */ |
| static struct tok agent_suboption_values[] = { |
| { AGENT_SUBOPTION_CIRCUIT_ID, "Circuit-ID" }, |
| { AGENT_SUBOPTION_REMOTE_ID, "Remote-ID" }, |
| { AGENT_SUBOPTION_SUBSCRIBER_ID, "Subscriber-ID" }, |
| { 0, NULL } |
| }; |
| |
| |
| static void |
| rfc1048_print(register const u_char *bp) |
| { |
| register u_int16_t tag; |
| register u_int len; |
| register const char *cp; |
| register char c; |
| int first, idx; |
| u_int32_t ul; |
| u_int16_t us; |
| u_int8_t uc, subopt, suboptlen; |
| |
| printf("\n\t Vendor-rfc1048 Extensions"); |
| |
| /* Step over magic cookie */ |
| printf("\n\t Magic Cookie 0x%08x", EXTRACT_32BITS(bp)); |
| bp += sizeof(int32_t); |
| |
| /* Loop while we there is a tag left in the buffer */ |
| while (TTEST2(*bp, 1)) { |
| tag = *bp++; |
| if (tag == TAG_PAD && vflag < 3) |
| continue; |
| if (tag == TAG_END && vflag < 3) |
| return; |
| if (tag == TAG_EXTENDED_OPTION) { |
| TCHECK2(*(bp + 1), 2); |
| tag = EXTRACT_16BITS(bp + 1); |
| /* XXX we don't know yet if the IANA will |
| * preclude overlap of 1-byte and 2-byte spaces. |
| * If not, we need to offset tag after this step. |
| */ |
| cp = tok2str(xtag2str, "?xT%u", tag); |
| } else |
| cp = tok2str(tag2str, "?T%u", tag); |
| c = *cp++; |
| |
| if (tag == TAG_PAD || tag == TAG_END) |
| len = 0; |
| else { |
| /* Get the length; check for truncation */ |
| TCHECK2(*bp, 1); |
| len = *bp++; |
| } |
| |
| printf("\n\t %s Option %u, length %u%s", cp, tag, len, |
| len > 0 ? ": " : ""); |
| |
| if (tag == TAG_PAD && vflag > 2) { |
| u_int ntag = 1; |
| while (TTEST2(*bp, 1) && *bp == TAG_PAD) { |
| bp++; |
| ntag++; |
| } |
| if (ntag > 1) |
| printf(", occurs %u", ntag); |
| } |
| |
| if (!TTEST2(*bp, len)) { |
| printf("[|rfc1048 %u]", len); |
| return; |
| } |
| |
| if (tag == TAG_DHCP_MESSAGE && len == 1) { |
| uc = *bp++; |
| printf("%s", tok2str(dhcp_msg_values, "Unknown (%u)", uc)); |
| continue; |
| } |
| |
| if (tag == TAG_PARM_REQUEST) { |
| idx = 0; |
| while (len-- > 0) { |
| uc = *bp++; |
| cp = tok2str(tag2str, "?Option %u", uc); |
| if (idx % 4 == 0) |
| printf("\n\t "); |
| else |
| printf(", "); |
| printf("%s", cp + 1); |
| idx++; |
| } |
| continue; |
| } |
| |
| if (tag == TAG_EXTENDED_REQUEST) { |
| first = 1; |
| while (len > 1) { |
| len -= 2; |
| us = EXTRACT_16BITS(bp); |
| bp += 2; |
| cp = tok2str(xtag2str, "?xT%u", us); |
| if (!first) |
| putchar('+'); |
| printf("%s", cp + 1); |
| first = 0; |
| } |
| continue; |
| } |
| |
| /* Print data */ |
| if (c == '?') { |
| /* Base default formats for unknown tags on data size */ |
| if (len & 1) |
| c = 'b'; |
| else if (len & 2) |
| c = 's'; |
| else |
| c = 'l'; |
| } |
| first = 1; |
| switch (c) { |
| |
| case 'a': |
| /* ascii strings */ |
| putchar('"'); |
| if (fn_printn(bp, len, snapend)) { |
| putchar('"'); |
| goto trunc; |
| } |
| putchar('"'); |
| bp += len; |
| len = 0; |
| break; |
| |
| case 'i': |
| case 'l': |
| case 'L': |
| /* ip addresses/32-bit words */ |
| while (len >= sizeof(ul)) { |
| if (!first) |
| putchar(','); |
| ul = EXTRACT_32BITS(bp); |
| if (c == 'i') { |
| ul = htonl(ul); |
| printf("%s", ipaddr_string(&ul)); |
| } else if (c == 'L') |
| printf("%d", ul); |
| else |
| printf("%u", ul); |
| bp += sizeof(ul); |
| len -= sizeof(ul); |
| first = 0; |
| } |
| break; |
| |
| case 'p': |
| /* IP address pairs */ |
| while (len >= 2*sizeof(ul)) { |
| if (!first) |
| putchar(','); |
| memcpy((char *)&ul, (const char *)bp, sizeof(ul)); |
| printf("(%s:", ipaddr_string(&ul)); |
| bp += sizeof(ul); |
| memcpy((char *)&ul, (const char *)bp, sizeof(ul)); |
| printf("%s)", ipaddr_string(&ul)); |
| bp += sizeof(ul); |
| len -= 2*sizeof(ul); |
| first = 0; |
| } |
| break; |
| |
| case 's': |
| /* shorts */ |
| while (len >= sizeof(us)) { |
| if (!first) |
| putchar(','); |
| us = EXTRACT_16BITS(bp); |
| printf("%u", us); |
| bp += sizeof(us); |
| len -= sizeof(us); |
| first = 0; |
| } |
| break; |
| |
| case 'B': |
| /* boolean */ |
| while (len > 0) { |
| if (!first) |
| putchar(','); |
| switch (*bp) { |
| case 0: |
| putchar('N'); |
| break; |
| case 1: |
| putchar('Y'); |
| break; |
| default: |
| printf("%u?", *bp); |
| break; |
| } |
| ++bp; |
| --len; |
| first = 0; |
| } |
| break; |
| |
| case 'b': |
| case 'x': |
| default: |
| /* Bytes */ |
| while (len > 0) { |
| if (!first) |
| putchar(c == 'x' ? ':' : '.'); |
| if (c == 'x') |
| printf("%02x", *bp); |
| else |
| printf("%u", *bp); |
| ++bp; |
| --len; |
| first = 0; |
| } |
| break; |
| |
| case '$': |
| /* Guys we can't handle with one of the usual cases */ |
| switch (tag) { |
| |
| case TAG_NETBIOS_NODE: |
| /* this option should be at least 1 byte long */ |
| if (len < 1) { |
| printf("ERROR: option %u len %u < 1 bytes", |
| TAG_NETBIOS_NODE, len); |
| break; |
| } |
| tag = *bp++; |
| --len; |
| fputs(tok2str(nbo2str, NULL, tag), stdout); |
| break; |
| |
| case TAG_OPT_OVERLOAD: |
| /* this option should be at least 1 byte long */ |
| if (len < 1) { |
| printf("ERROR: option %u len %u < 1 bytes", |
| TAG_OPT_OVERLOAD, len); |
| break; |
| } |
| tag = *bp++; |
| --len; |
| fputs(tok2str(oo2str, NULL, tag), stdout); |
| break; |
| |
| case TAG_CLIENT_FQDN: |
| /* this option should be at least 3 bytes long */ |
| if (len < 3) { |
| printf("ERROR: option %u len %u < 3 bytes", |
| TAG_CLIENT_FQDN, len); |
| bp += len; |
| len = 0; |
| break; |
| } |
| if (*bp) |
| printf("[%s] ", client_fqdn_flags(*bp)); |
| bp++; |
| if (*bp || *(bp+1)) |
| printf("%u/%u ", *bp, *(bp+1)); |
| bp += 2; |
| putchar('"'); |
| if (fn_printn(bp, len - 3, snapend)) { |
| putchar('"'); |
| goto trunc; |
| } |
| putchar('"'); |
| bp += len - 3; |
| len = 0; |
| break; |
| |
| case TAG_CLIENT_ID: |
| { int type; |
| |
| /* this option should be at least 1 byte long */ |
| if (len < 1) { |
| printf("ERROR: option %u len %u < 1 bytes", |
| TAG_CLIENT_ID, len); |
| break; |
| } |
| type = *bp++; |
| len--; |
| if (type == 0) { |
| putchar('"'); |
| if (fn_printn(bp, len, snapend)) { |
| putchar('"'); |
| goto trunc; |
| } |
| putchar('"'); |
| bp += len; |
| len = 0; |
| break; |
| } else { |
| printf("%s ", tok2str(arp2str, "hardware-type %u,", type)); |
| while (len > 0) { |
| if (!first) |
| putchar(':'); |
| printf("%02x", *bp); |
| ++bp; |
| --len; |
| first = 0; |
| } |
| } |
| break; |
| } |
| |
| case TAG_AGENT_CIRCUIT: |
| while (len >= 2) { |
| subopt = *bp++; |
| suboptlen = *bp++; |
| len -= 2; |
| if (suboptlen > len) { |
| printf("\n\t %s SubOption %u, length %u: length goes past end of option", |
| tok2str(agent_suboption_values, "Unknown", subopt), |
| subopt, |
| suboptlen); |
| bp += len; |
| len = 0; |
| break; |
| } |
| printf("\n\t %s SubOption %u, length %u: ", |
| tok2str(agent_suboption_values, "Unknown", subopt), |
| subopt, |
| suboptlen); |
| switch (subopt) { |
| |
| case AGENT_SUBOPTION_CIRCUIT_ID: /* fall through */ |
| case AGENT_SUBOPTION_REMOTE_ID: |
| case AGENT_SUBOPTION_SUBSCRIBER_ID: |
| fn_printn(bp, suboptlen, NULL); |
| break; |
| |
| default: |
| print_unknown_data(bp, "\n\t\t", suboptlen); |
| } |
| |
| len -= suboptlen; |
| bp += suboptlen; |
| } |
| break; |
| |
| case TAG_CLASSLESS_STATIC_RT: |
| case TAG_CLASSLESS_STA_RT_MS: |
| { |
| u_int mask_width, significant_octets, i; |
| |
| /* this option should be at least 5 bytes long */ |
| if (len < 5) { |
| printf("ERROR: option %u len %u < 5 bytes", |
| TAG_CLASSLESS_STATIC_RT, len); |
| bp += len; |
| len = 0; |
| break; |
| } |
| while (len > 0) { |
| if (!first) |
| putchar(','); |
| mask_width = *bp++; |
| len--; |
| /* mask_width <= 32 */ |
| if (mask_width > 32) { |
| printf("[ERROR: Mask width (%d) > 32]", mask_width); |
| bp += len; |
| len = 0; |
| break; |
| } |
| significant_octets = (mask_width + 7) / 8; |
| /* significant octets + router(4) */ |
| if (len < significant_octets + 4) { |
| printf("[ERROR: Remaining length (%u) < %u bytes]", len, significant_octets + 4); |
| bp += len; |
| len = 0; |
| break; |
| } |
| putchar('('); |
| if (mask_width == 0) |
| printf("default"); |
| else { |
| for (i = 0; i < significant_octets ; i++) { |
| if (i > 0) |
| putchar('.'); |
| printf("%d", *bp++); |
| } |
| for (i = significant_octets ; i < 4 ; i++) |
| printf(".0"); |
| printf("/%d", mask_width); |
| } |
| memcpy((char *)&ul, (const char *)bp, sizeof(ul)); |
| printf(":%s)", ipaddr_string(&ul)); |
| bp += sizeof(ul); |
| len -= (significant_octets + 4); |
| first = 0; |
| } |
| } |
| break; |
| |
| default: |
| printf("[unknown special tag %u, size %u]", |
| tag, len); |
| bp += len; |
| len = 0; |
| break; |
| } |
| break; |
| } |
| /* Data left over? */ |
| if (len) { |
| printf("\n\t trailing data length %u", len); |
| bp += len; |
| } |
| } |
| return; |
| trunc: |
| printf("|[rfc1048]"); |
| } |
| |
| static void |
| cmu_print(register const u_char *bp) |
| { |
| register const struct cmu_vend *cmu; |
| |
| #define PRINTCMUADDR(m, s) { TCHECK(cmu->m); \ |
| if (cmu->m.s_addr != 0) \ |
| printf(" %s:%s", s, ipaddr_string(&cmu->m.s_addr)); } |
| |
| printf(" vend-cmu"); |
| cmu = (const struct cmu_vend *)bp; |
| |
| /* Only print if there are unknown bits */ |
| TCHECK(cmu->v_flags); |
| if ((cmu->v_flags & ~(VF_SMASK)) != 0) |
| printf(" F:0x%x", cmu->v_flags); |
| PRINTCMUADDR(v_dgate, "DG"); |
| PRINTCMUADDR(v_smask, cmu->v_flags & VF_SMASK ? "SM" : "SM*"); |
| PRINTCMUADDR(v_dns1, "NS1"); |
| PRINTCMUADDR(v_dns2, "NS2"); |
| PRINTCMUADDR(v_ins1, "IEN1"); |
| PRINTCMUADDR(v_ins2, "IEN2"); |
| PRINTCMUADDR(v_ts1, "TS1"); |
| PRINTCMUADDR(v_ts2, "TS2"); |
| return; |
| |
| trunc: |
| fputs(tstr, stdout); |
| #undef PRINTCMUADDR |
| } |
| |
| static char * |
| client_fqdn_flags(u_int flags) |
| { |
| static char buf[8+1]; |
| int i = 0; |
| |
| if (flags & CLIENT_FQDN_FLAGS_S) |
| buf[i++] = 'S'; |
| if (flags & CLIENT_FQDN_FLAGS_O) |
| buf[i++] = 'O'; |
| if (flags & CLIENT_FQDN_FLAGS_E) |
| buf[i++] = 'E'; |
| if (flags & CLIENT_FQDN_FLAGS_N) |
| buf[i++] = 'N'; |
| buf[i] = '\0'; |
| |
| return buf; |
| } |