X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/e89409254248af64db721ede4babbe9fd1753f6c..cbd4cbb99cf9e68c67af16b5b20a050ef8819af6:/print-bootp.c?ds=sidebyside diff --git a/print-bootp.c b/print-bootp.c index 51cc395d..2c823f4e 100644 --- a/print-bootp.c +++ b/print-bootp.c @@ -22,7 +22,7 @@ */ #ifndef lint static const char rcsid[] = - "@(#) $Header: /tcpdump/master/tcpdump/print-bootp.c,v 1.51 2000-09-23 08:03:33 guy Exp $ (LBL)"; + "@(#) $Header: /tcpdump/master/tcpdump/print-bootp.c,v 1.58 2001-04-27 02:17:10 fenner Exp $ (LBL)"; #endif #ifdef HAVE_CONFIG_H @@ -35,7 +35,6 @@ static const char rcsid[] = struct mbuf; struct rtentry; -#include #include @@ -45,6 +44,7 @@ struct rtentry; #include "interface.h" #include "addrtoname.h" +#include "extract.h" #include "ether.h" #include "bootp.h" @@ -174,7 +174,7 @@ bootp_print(register const u_char *cp, u_int length, else { u_int32_t ul; - memcpy((char *)&ul, (char *)bp->bp_vend, sizeof(ul)); + ul = EXTRACT_32BITS(&bp->bp_vend); if (ul != 0) printf("vend-#0x%x", ul); } @@ -189,7 +189,7 @@ static struct tok tag2str[] = { /* RFC1048 tags */ { TAG_PAD, " PAD" }, { TAG_SUBNET_MASK, "iSM" }, /* subnet mask (RFC950) */ - { TAG_TIME_OFFSET, "lTZ" }, /* seconds from UTC */ + { 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) */ @@ -265,6 +265,45 @@ static struct tok tag2str[] = { { TAG_REBIND_TIME, "lRB" }, { TAG_VENDOR_CLASS, "bVC" }, { TAG_CLIENT_ID, "xCID" }, +/* 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" }, +/* ftp://ftp.isi.edu/.../assignments/bootp-dhcp-extensions */ + { TAG_USER_CLASS, "aCLASS" }, + { TAG_SLP_NAMING_AUTH, "aSLP-NA" }, + { TAG_CLIENT_FQDN, "bFQDN" }, /* XXX 'b' */ + { 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 } }; @@ -291,7 +330,16 @@ rfc1048_print(register const u_char *bp, register u_int length) continue; if (tag == TAG_END) return; - cp = tok2str(tag2str, "?T%d", tag); + 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%d", tag); + } else + cp = tok2str(tag2str, "?T%d", tag); c = *cp++; printf(" %s:", cp); @@ -326,7 +374,21 @@ rfc1048_print(register const u_char *bp, register u_int length) first = 1; while (len-- > 0) { c = *bp++; - cp = tok2str(tag2str, "?%d", c); + cp = tok2str(tag2str, "?T%d", c); + if (!first) + putchar('+'); + printf("%s", cp + 1); + first = 0; + } + continue; + } + if (tag == TAG_EXTENDED_REQUEST) { + first = 1; + while (len > 1) { + len -= 2; + c = EXTRACT_16BITS(bp); + bp += 2; + cp = tok2str(xtag2str, "?xT%d", c); if (!first) putchar('+'); printf("%s", cp + 1); @@ -360,13 +422,17 @@ rfc1048_print(register const u_char *bp, register u_int length) case 'i': case 'l': + case 'L': /* ip addresses/32-bit words */ while (size >= sizeof(ul)) { if (!first) putchar(','); - memcpy((char *)&ul, (char *)bp, sizeof(ul)); - if (c == 'i') + 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); @@ -396,7 +462,7 @@ rfc1048_print(register const u_char *bp, register u_int length) while (size >= sizeof(us)) { if (!first) putchar(','); - memcpy((char *)&us, (char *)bp, sizeof(us)); + us = EXTRACT_16BITS(bp); printf("%d", us); bp += sizeof(us); size -= sizeof(us); @@ -432,8 +498,11 @@ rfc1048_print(register const u_char *bp, register u_int length) /* Bytes */ while (size > 0) { if (!first) - putchar (c == 'x' ? ':' : '.'); - printf (c == 'x' ? "%02x" : "%d", *bp); + putchar(c == 'x' ? ':' : '.'); + if (c == 'x') + printf("%02x", *bp); + else + printf("%d", *bp); ++bp; --size; first = 0; @@ -444,17 +513,19 @@ rfc1048_print(register const u_char *bp, register u_int length) if (size) printf("[len %d]", len); } + return; +trunc: + printf("|[rfc1048]"); } static void cmu_print(register const u_char *bp, register u_int length) { register const struct cmu_vend *cmu; - char *fmt = " %s:%s"; #define PRINTCMUADDR(m, s) { TCHECK(cmu->m); \ if (cmu->m.s_addr != 0) \ - printf(fmt, s, ipaddr_string(&cmu->m.s_addr)); } + printf(" %s:%s", s, ipaddr_string(&cmu->m.s_addr)); } printf(" vend-cmu"); cmu = (struct cmu_vend *)bp;