diff options
Diffstat (limited to 'contrib/tcpdump/print-bootp.c')
-rw-r--r-- | contrib/tcpdump/print-bootp.c | 658 |
1 files changed, 0 insertions, 658 deletions
diff --git a/contrib/tcpdump/print-bootp.c b/contrib/tcpdump/print-bootp.c deleted file mode 100644 index 8108993e6388d..0000000000000 --- a/contrib/tcpdump/print-bootp.c +++ /dev/null @@ -1,658 +0,0 @@ -/* - * 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 1.78.2.2 2005/05/06 04:19:39 guy 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 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, "iSM" }, /* subnet mask (RFC950) */ - { TAG_TIME_OFFSET, "LTZ" }, /* seconds from UTC */ - { TAG_GATEWAY, "iDG" }, /* default gateway */ - { TAG_TIME_SERVER, "iTS" }, /* time servers (RFC868) */ - { TAG_NAME_SERVER, "iIEN" }, /* IEN name servers (IEN116) */ - { TAG_DOMAIN_SERVER, "iNS" }, /* domain name (RFC1035) */ - { TAG_LOG_SERVER, "iLOG" }, /* MIT log servers */ - { TAG_COOKIE_SERVER, "iCS" }, /* cookie servers (RFC865) */ - { TAG_LPR_SERVER, "iLPR" }, /* lpr server (RFC1179) */ - { TAG_IMPRESS_SERVER, "iIM" }, /* impress servers (Imagen) */ - { TAG_RLP_SERVER, "iRL" }, /* resource location (RFC887) */ - { TAG_HOSTNAME, "aHN" }, /* ascii hostname */ - { TAG_BOOTSIZE, "sBS" }, /* 512 byte blocks */ - { TAG_END, " END" }, -/* RFC1497 tags */ - { TAG_DUMPPATH, "aDP" }, - { TAG_DOMAINNAME, "aDN" }, - { 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, "lMA" }, - { TAG_MTU_TABLE, "sMT" }, - { TAG_INT_MTU, "sMTU" }, - { TAG_LOCAL_SUBNETS, "BLSN" }, - { TAG_BROAD_ADDR, "iBR" }, - { TAG_DO_MASK_DISC, "BMD" }, - { TAG_SUPPLY_MASK, "BMS" }, - { TAG_DO_RDISC, "BRD" }, - { TAG_RTR_SOL_ADDR, "iRSA" }, - { TAG_STATIC_ROUTE, "pSR" }, - { 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, "bVO" }, - { TAG_NETBIOS_NS, "iWNS" }, - { TAG_NETBIOS_DDS, "iWDD" }, - { TAG_NETBIOS_NODE, "$WNT" }, - { TAG_NETBIOS_SCOPE, "aWSC" }, - { TAG_XWIN_FS, "iXFS" }, - { TAG_XWIN_DM, "iXDM" }, - { TAG_NIS_P_DOMAIN, "sN+D" }, - { TAG_NIS_P_SERVERS, "iN+S" }, - { TAG_MOBILE_HOME, "iMH" }, - { TAG_SMPT_SERVER, "iSMTP" }, - { TAG_POP3_SERVER, "iPOP3" }, - { TAG_NNTP_SERVER, "iNNTP" }, - { TAG_WWW_SERVER, "iWWW" }, - { TAG_FINGER_SERVER, "iFG" }, - { TAG_IRC_SERVER, "iIRC" }, - { TAG_STREETTALK_SRVR, "iSTS" }, - { TAG_STREETTALK_STDA, "iSTDA" }, - { TAG_REQUESTED_IP, "iRQ" }, - { TAG_IP_LEASE, "lLT" }, - { TAG_OPT_OVERLOAD, "$OO" }, - { TAG_TFTP_SERVER, "aTFTP" }, - { TAG_BOOTFILENAME, "aBF" }, - { TAG_DHCP_MESSAGE, " DHCP" }, - { TAG_SERVER_ID, "iSID" }, - { TAG_PARM_REQUEST, "bPR" }, - { TAG_MESSAGE, "aMSG" }, - { TAG_MAX_MSG_SIZE, "sMSZ" }, - { TAG_RENEWAL_TIME, "lRN" }, - { TAG_REBIND_TIME, "lRB" }, - { TAG_VENDOR_CLASS, "aVC" }, - { TAG_CLIENT_ID, "$CID" }, -/* RFC 2485 */ - { TAG_OPEN_GROUP_UAP, "aUAP" }, -/* RFC 2563 */ - { TAG_DISABLE_AUTOCONF, "BNOAUTO" }, -/* RFC 2610 */ - { TAG_SLP_DA, "bSLP-DA" }, /*"b" is a little wrong */ - { TAG_SLP_SCOPE, "bSLP-SCOPE" }, /*"b" is a little wrong */ -/* RFC 2937 */ - { TAG_NS_SEARCH, "sNSSEARCH" }, /* XXX 's' */ -/* RFC 3011 */ - { TAG_IP4_SUBNET_SELECT, "iSUBNET" }, -/* http://www.iana.org/assignments/bootp-dhcp-extensions/index.htm */ - { TAG_USER_CLASS, "aCLASS" }, - { TAG_SLP_NAMING_AUTH, "aSLP-NA" }, - { TAG_CLIENT_FQDN, "$FQDN" }, - { TAG_AGENT_CIRCUIT, "bACKT" }, - { 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 void -rfc1048_print(register const u_char *bp) -{ - register u_int16_t tag; - register u_int len, size; - register const char *cp; - register char c; - int first; - u_int32_t ul; - u_int16_t us; - u_int8_t uc; - - printf("\n\t Vendor-rfc1048:"); - - /* Step over magic cookie */ - bp += sizeof(int32_t); - - /* Loop while we there is a tag left in the buffer */ - while (bp + 1 < snapend) { - tag = *bp++; - if (tag == TAG_PAD) - continue; - if (tag == TAG_END) - 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++; - printf("\n\t %s:", cp); - - /* Get the length; check for truncation */ - if (bp + 1 >= snapend) { - fputs(tstr, stdout); - return; - } - len = *bp++; - if (bp + len >= snapend) { - printf("[|bootp %u]", len); - return; - } - - if (tag == TAG_DHCP_MESSAGE && len == 1) { - uc = *bp++; - switch (uc) { - case DHCPDISCOVER: printf("DISCOVER"); break; - case DHCPOFFER: printf("OFFER"); break; - case DHCPREQUEST: printf("REQUEST"); break; - case DHCPDECLINE: printf("DECLINE"); break; - case DHCPACK: printf("ACK"); break; - case DHCPNAK: printf("NACK"); break; - case DHCPRELEASE: printf("RELEASE"); break; - case DHCPINFORM: printf("INFORM"); break; - default: printf("%u", uc); break; - } - continue; - } - - if (tag == TAG_PARM_REQUEST) { - first = 1; - while (len-- > 0) { - uc = *bp++; - cp = tok2str(tag2str, "?T%u", uc); - if (!first) - putchar('+'); - printf("%s", cp + 1); - first = 0; - } - 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 */ - size = len; - if (c == '?') { - /* Base default formats for unknown tags on data size */ - if (size & 1) - c = 'b'; - else if (size & 2) - c = 's'; - else - c = 'l'; - } - first = 1; - switch (c) { - - case 'a': - /* ascii strings */ - putchar('"'); - if (fn_printn(bp, size, snapend)) { - putchar('"'); - goto trunc; - } - putchar('"'); - bp += size; - size = 0; - break; - - case 'i': - case 'l': - case 'L': - /* ip addresses/32-bit words */ - while (size >= 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); - size -= sizeof(ul); - first = 0; - } - break; - - case 'p': - /* IP address pairs */ - while (size >= 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); - size -= 2*sizeof(ul); - first = 0; - } - break; - - case 's': - /* shorts */ - while (size >= sizeof(us)) { - if (!first) - putchar(','); - us = EXTRACT_16BITS(bp); - printf("%u", us); - bp += sizeof(us); - size -= sizeof(us); - first = 0; - } - break; - - case 'B': - /* boolean */ - while (size > 0) { - if (!first) - putchar(','); - switch (*bp) { - case 0: - putchar('N'); - break; - case 1: - putchar('Y'); - break; - default: - printf("%u?", *bp); - break; - } - ++bp; - --size; - first = 0; - } - break; - - case 'b': - case 'x': - default: - /* Bytes */ - while (size > 0) { - if (!first) - putchar(c == 'x' ? ':' : '.'); - if (c == 'x') - printf("%02x", *bp); - else - printf("%u", *bp); - ++bp; - --size; - first = 0; - } - break; - - case '$': - /* Guys we can't handle with one of the usual cases */ - switch (tag) { - - case TAG_NETBIOS_NODE: - tag = *bp++; - --size; - fputs(tok2str(nbo2str, NULL, tag), stdout); - break; - - case TAG_OPT_OVERLOAD: - tag = *bp++; - --size; - fputs(tok2str(oo2str, NULL, tag), stdout); - break; - - case TAG_CLIENT_FQDN: - /* option 81 should be at least 4 bytes long */ - if (len < 4) { - printf("ERROR: options 81 len %u < 4 bytes", len); - break; - } - if (*bp++) - printf("[svrreg]"); - if (*bp) - printf("%u/%u/", *bp, *(bp+1)); - bp += 2; - putchar('"'); - if (fn_printn(bp, size - 3, snapend)) { - putchar('"'); - goto trunc; - } - putchar('"'); - bp += size - 3; - size = 0; - break; - - case TAG_CLIENT_ID: - { int type = *bp++; - size--; - if (type == 0) { - putchar('"'); - if (fn_printn(bp, size, snapend)) { - putchar('"'); - goto trunc; - } - putchar('"'); - bp += size; - size = 0; - break; - } else { - printf("[%s]", tok2str(arp2str, "type-%d", type)); - } - while (size > 0) { - if (!first) - putchar(':'); - printf("%02x", *bp); - ++bp; - --size; - first = 0; - } - break; - } - - default: - printf("[unknown special tag %u, size %u]", - tag, size); - bp += size; - size = 0; - break; - } - break; - } - /* Data left over? */ - if (size) { - printf("[len %u]", len); - bp += size; - } - } - 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 -} |