diff options
Diffstat (limited to 'usr.sbin/bootpd/print-bootp.c')
| -rw-r--r-- | usr.sbin/bootpd/print-bootp.c | 493 |
1 files changed, 0 insertions, 493 deletions
diff --git a/usr.sbin/bootpd/print-bootp.c b/usr.sbin/bootpd/print-bootp.c deleted file mode 100644 index 1919e7f..0000000 --- a/usr.sbin/bootpd/print-bootp.c +++ /dev/null @@ -1,493 +0,0 @@ -/* - * Copyright (c) 1988-1990 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. - * - * This file was copied from tcpdump-2.1.1 and modified. - * There is an e-mail list for tcpdump: <tcpdump@ee.lbl.gov> - */ -#ifndef lint -static char rcsid[] = "$Id: print-bootp.c,v 1.2 1994/08/22 22:15:01 gwr Exp $"; -/* 93/10/10 <gwr@mc.com> New data-driven option print routine. */ -#endif - -#include <stdio.h> - -#include <sys/param.h> -#include <sys/types.h> -#include <sys/socket.h> -#include <net/if.h> -#include <netinet/in.h> -#include <string.h> -#include <ctype.h> - -#include "bootp.h" -#include "bootptest.h" - -/* These decode the vendor data. */ -static void rfc1048_print(); -static void cmu_print(); -static void other_print(); -static void dump_hex(); - -/* - * Print bootp requests - */ -void -bootp_print(bp, length, sport, dport) - struct bootp *bp; - int length; - u_short sport, dport; -{ - static char tstr[] = " [|bootp]"; - static unsigned char vm_cmu[4] = VM_CMU; - static unsigned char vm_rfc1048[4] = VM_RFC1048; - u_char *ep; - int vdlen; - -#define TCHECK(var, l) if ((u_char *)&(var) > ep - l) goto trunc - - /* Note funny sized packets */ - if (length != sizeof(struct bootp)) - (void) printf(" [len=%d]", length); - - /* 'ep' points to the end of avaible data. */ - ep = (u_char *) snapend; - - switch (bp->bp_op) { - - case BOOTREQUEST: - /* Usually, a request goes from a client to a server */ - if (sport != IPPORT_BOOTPC || dport != IPPORT_BOOTPS) - printf(" (request)"); - break; - - case BOOTREPLY: - /* Usually, a reply goes from a server to a client */ - if (sport != IPPORT_BOOTPS || dport != IPPORT_BOOTPC) - printf(" (reply)"); - break; - - default: - printf(" bootp-#%d", bp->bp_op); - } - - /* 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_hlen != 6) - printf(" hlen:%d", bp->bp_hlen); - - /* Client's Hardware address */ - if (bp->bp_hlen) { - register struct ether_header *eh; - register char *e; - - TCHECK(bp->bp_chaddr[0], 6); - eh = (struct ether_header *) packetp; - if (bp->bp_op == BOOTREQUEST) - e = (char *) ESRC(eh); - else if (bp->bp_op == BOOTREPLY) - e = (char *) EDST(eh); - else - e = 0; - if (e == 0 || bcmp((char *) bp->bp_chaddr, e, 6)) - dump_hex(bp->bp_chaddr, bp->bp_hlen); - } - /* Only print interesting fields */ - if (bp->bp_hops) - printf(" hops:%d", bp->bp_hops); - - if (bp->bp_xid) - printf(" xid:%d", ntohl(bp->bp_xid)); - - if (bp->bp_secs) - printf(" secs:%d", ntohs(bp->bp_secs)); - - /* Client's ip address */ - TCHECK(bp->bp_ciaddr, sizeof(bp->bp_ciaddr)); - if (bp->bp_ciaddr.s_addr) - printf(" C:%s", ipaddr_string(&bp->bp_ciaddr)); - - /* 'your' ip address (bootp client) */ - TCHECK(bp->bp_yiaddr, sizeof(bp->bp_yiaddr)); - if (bp->bp_yiaddr.s_addr) - printf(" Y:%s", ipaddr_string(&bp->bp_yiaddr)); - - /* Server's ip address */ - TCHECK(bp->bp_siaddr, sizeof(bp->bp_siaddr)); - if (bp->bp_siaddr.s_addr) - printf(" S:%s", ipaddr_string(&bp->bp_siaddr)); - - /* Gateway's ip address */ - TCHECK(bp->bp_giaddr, sizeof(bp->bp_giaddr)); - if (bp->bp_giaddr.s_addr) - printf(" G:%s", ipaddr_string(&bp->bp_giaddr)); - - TCHECK(bp->bp_sname[0], sizeof(bp->bp_sname)); - if (*bp->bp_sname) { - printf(" sname:"); - if (printfn(bp->bp_sname, ep)) { - fputs(tstr + 1, stdout); - return; - } - } - TCHECK(bp->bp_file[0], sizeof(bp->bp_file)); - if (*bp->bp_file) { - printf(" file:"); - if (printfn(bp->bp_file, ep)) { - fputs(tstr + 1, stdout); - return; - } - } - /* Don't try to decode the vendor buffer unless we're verbose */ - if (vflag <= 0) - return; - - vdlen = sizeof(bp->bp_vend); - /* Vendor data can extend to the end of the packet. */ - if (vdlen < (ep - bp->bp_vend)) - vdlen = (ep - bp->bp_vend); - - TCHECK(bp->bp_vend[0], vdlen); - printf(" vend"); - if (!bcmp(bp->bp_vend, vm_rfc1048, sizeof(u_int32))) - rfc1048_print(bp->bp_vend, vdlen); - else if (!bcmp(bp->bp_vend, vm_cmu, sizeof(u_int32))) - cmu_print(bp->bp_vend, vdlen); - else - other_print(bp->bp_vend, vdlen); - - return; - trunc: - fputs(tstr, stdout); -#undef TCHECK -} - -/* - * Option description data follows. - * These are decribed in: RFC-1048, RFC-1395, RFC-1497, RFC-1533 - * - * The first char of each option string encodes the data format: - * ?: unknown - * a: ASCII - * b: byte (8-bit) - * i: inet address - * l: int32 - * s: short (16-bit) - */ -char * -rfc1048_opts[] = { - /* Originally from RFC-1048: */ - "?PAD", /* 0: Padding - special, no data. */ - "iSM", /* 1: subnet mask (RFC950)*/ - "lTZ", /* 2: time offset, seconds from UTC */ - "iGW", /* 3: gateways (or routers) */ - "iTS", /* 4: time servers (RFC868) */ - "iINS", /* 5: IEN name servers (IEN116) */ - "iDNS", /* 6: domain name servers (RFC1035)(1034?) */ - "iLOG", /* 7: MIT log servers */ - "iCS", /* 8: cookie servers (RFC865) */ - "iLPR", /* 9: lpr server (RFC1179) */ - "iIPS", /* 10: impress servers (Imagen) */ - "iRLP", /* 11: resource location servers (RFC887) */ - "aHN", /* 12: host name (ASCII) */ - "sBFS", /* 13: boot file size (in 512 byte blocks) */ - - /* Added by RFC-1395: */ - "aDUMP", /* 14: Merit Dump File */ - "aDNAM", /* 15: Domain Name (for DNS) */ - "iSWAP", /* 16: Swap Server */ - "aROOT", /* 17: Root Path */ - - /* Added by RFC-1497: */ - "aEXTF", /* 18: Extensions Path (more options) */ - - /* Added by RFC-1533: (many, many options...) */ -#if 1 /* These might not be worth recognizing by name. */ - - /* IP Layer Parameters, per-host (RFC-1533, sect. 4) */ - "bIP-forward", /* 19: IP Forwarding flag */ - "bIP-srcroute", /* 20: IP Source Routing Enable flag */ - "iIP-filters", /* 21: IP Policy Filter (addr pairs) */ - "sIP-maxudp", /* 22: IP Max-UDP reassembly size */ - "bIP-ttlive", /* 23: IP Time to Live */ - "lIP-pmtuage", /* 24: IP Path MTU aging timeout */ - "sIP-pmtutab", /* 25: IP Path MTU plateau table */ - - /* IP parameters, per-interface (RFC-1533, sect. 5) */ - "sIP-mtu-sz", /* 26: IP MTU size */ - "bIP-mtu-sl", /* 27: IP MTU all subnets local */ - "bIP-bcast1", /* 28: IP Broadcast Addr ones flag */ - "bIP-mask-d", /* 29: IP do mask discovery */ - "bIP-mask-s", /* 30: IP do mask supplier */ - "bIP-rt-dsc", /* 31: IP do router discovery */ - "iIP-rt-sa", /* 32: IP router solicitation addr */ - "iIP-routes", /* 33: IP static routes (dst,router) */ - - /* Link Layer parameters, per-interface (RFC-1533, sect. 6) */ - "bLL-trailer", /* 34: do tralier encapsulation */ - "lLL-arp-tmo", /* 35: ARP cache timeout */ - "bLL-ether2", /* 36: Ethernet version 2 (IEEE 802.3) */ - - /* TCP parameters (RFC-1533, sect. 7) */ - "bTCP-def-ttl", /* 37: default time to live */ - "lTCP-KA-tmo", /* 38: keepalive time interval */ - "bTCP-KA-junk", /* 39: keepalive sends extra junk */ - - /* Application and Service Parameters (RFC-1533, sect. 8) */ - "aNISDOM", /* 40: NIS Domain (Sun YP) */ - "iNISSRV", /* 41: NIS Servers */ - "iNTPSRV", /* 42: NTP (time) Servers (RFC 1129) */ - "?VSINFO", /* 43: Vendor Specific Info (encapsulated) */ - "iNBiosNS", /* 44: NetBIOS Name Server (RFC-1001,1..2) */ - "iNBiosDD", /* 45: NetBIOS Datagram Dist. Server. */ - "bNBiosNT", /* 46: NetBIOS Note Type */ - "?NBiosS", /* 47: NetBIOS Scope */ - "iXW-FS", /* 48: X Window System Font Servers */ - "iXW-DM", /* 49: X Window System Display Managers */ - - /* DHCP extensions (RFC-1533, sect. 9) */ -#endif -}; -#define KNOWN_OPTIONS (sizeof(rfc1048_opts) / sizeof(rfc1048_opts[0])) - -static void print_string(); - -static void -rfc1048_print(bp, length) - register u_char *bp; - int length; -{ - u_char tag; - u_char *ep; - register int len, j; - u_int32 ul; - u_short us; - struct in_addr ia; - char *optstr; - - printf("-rfc1395"); - - /* Step over magic cookie */ - bp += sizeof(int32); - /* Setup end pointer */ - ep = bp + length; - while (bp < ep) { - tag = *bp++; - /* Check for tags with no data first. */ - if (tag == TAG_PAD) - continue; - if (tag == TAG_END) - return; - if (tag < KNOWN_OPTIONS) { - optstr = rfc1048_opts[tag]; - printf(" %s:", optstr + 1); - } else { - printf(" T%d:", tag); - optstr = "?"; - } - /* Now scan the length byte. */ - len = *bp++; - if (bp + len > ep) { - /* truncated option */ - printf(" |(%d>%d)", len, ep - bp); - return; - } - /* Print the option value(s). */ - switch (optstr[0]) { - - case 'a': /* ASCII string */ - printfn(bp, bp + len); - bp += len; - len = 0; - break; - - case 's': /* Word formats */ - while (len >= 2) { - bcopy((char *) bp, (char *) &us, 2); - printf("%d", ntohs(us)); - bp += 2; - len -= 2; - if (len) printf(","); - } - if (len) printf("(junk=%d)", len); - break; - - case 'l': /* Long words */ - while (len >= 4) { - bcopy((char *) bp, (char *) &ul, 4); - printf("%d", ntohl(ul)); - bp += 4; - len -= 4; - if (len) printf(","); - } - if (len) printf("(junk=%d)", len); - break; - - case 'i': /* INET addresses */ - while (len >= 4) { - bcopy((char *) bp, (char *) &ia, 4); - printf("%s", ipaddr_string(&ia)); - bp += 4; - len -= 4; - if (len) printf(","); - } - if (len) printf("(junk=%d)", len); - break; - - case 'b': - default: - break; - - } /* switch */ - - /* Print as characters, if appropriate. */ - if (len) { - dump_hex(bp, len); - if (isascii(*bp) && isprint(*bp)) { - printf("("); - printfn(bp, bp + len); - printf(")"); - } - bp += len; - len = 0; - } - } /* while bp < ep */ -} - -static void -cmu_print(bp, length) - register u_char *bp; - int length; -{ - struct cmu_vend *v; - u_char *ep; - - printf("-cmu"); - - v = (struct cmu_vend *) bp; - if (length < sizeof(*v)) { - printf(" |L=%d", length); - return; - } - /* Setup end pointer */ - ep = bp + length; - - /* Subnet mask */ - if (v->v_flags & VF_SMASK) { - printf(" SM:%s", ipaddr_string(&v->v_smask)); - } - /* Default gateway */ - if (v->v_dgate.s_addr) - printf(" GW:%s", ipaddr_string(&v->v_dgate)); - - /* Domain name servers */ - if (v->v_dns1.s_addr) - printf(" DNS1:%s", ipaddr_string(&v->v_dns1)); - if (v->v_dns2.s_addr) - printf(" DNS2:%s", ipaddr_string(&v->v_dns2)); - - /* IEN-116 name servers */ - if (v->v_ins1.s_addr) - printf(" INS1:%s", ipaddr_string(&v->v_ins1)); - if (v->v_ins2.s_addr) - printf(" INS2:%s", ipaddr_string(&v->v_ins2)); - - /* Time servers */ - if (v->v_ts1.s_addr) - printf(" TS1:%s", ipaddr_string(&v->v_ts1)); - if (v->v_ts2.s_addr) - printf(" TS2:%s", ipaddr_string(&v->v_ts2)); - -} - - -/* - * Print out arbitrary, unknown vendor data. - */ - -static void -other_print(bp, length) - register u_char *bp; - int length; -{ - u_char *ep; /* end pointer */ - u_char *zp; /* points one past last non-zero byte */ - register int i, j; - - /* Setup end pointer */ - ep = bp + length; - - /* Find the last non-zero byte. */ - for (zp = ep; zp > bp; zp--) { - if (zp[-1] != 0) - break; - } - - /* Print the all-zero case in a compact representation. */ - if (zp == bp) { - printf("-all-zero"); - return; - } - printf("-unknown"); - - /* Are there enough trailing zeros to make "00..." worthwhile? */ - if (zp + 2 > ep) - zp = ep; /* print them all normally */ - - /* Now just print all the non-zero data. */ - while (bp < zp) { - printf(".%02X", *bp); - bp++; - } - - if (zp < ep) - printf(".00..."); - - return; -} - -static void -dump_hex(bp, len) - u_char *bp; - int len; -{ - while (len > 0) { - printf("%02X", *bp); - bp++; - len--; - if (len) printf("."); - } -} - -/* - * Local Variables: - * tab-width: 4 - * c-indent-level: 4 - * c-argdecl-indent: 4 - * c-continued-statement-offset: 4 - * c-continued-brace-offset: -4 - * c-label-offset: -4 - * c-brace-offset: 0 - * End: - */ |
