X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/cac189b9e31afe141f8c60c70bc90ce8f595f63d..1a04b92e365f5ed01ca38619b41bcc4fc9cbd63c:/print-babel.c diff --git a/print-babel.c b/print-babel.c index 58faca15..3f0166d1 100644 --- a/print-babel.c +++ b/print-babel.c @@ -26,47 +26,53 @@ * SUCH DAMAGE. */ +/* \summary: Babel Routing Protocol printer */ + #ifdef HAVE_CONFIG_H #include "config.h" #endif -#include +#include #include #include +#include "netdissect.h" #include "addrtoname.h" -#include "interface.h" #include "extract.h" -static void babel_print_v2(const u_char *cp, u_int length); +static const char tstr[] = "[|babel]"; + +static void babel_print_v2(netdissect_options *, const u_char *cp, u_int length); void -babel_print(const u_char *cp, u_int length) { - printf("babel"); +babel_print(netdissect_options *ndo, + const u_char *cp, u_int length) +{ + ND_PRINT((ndo, "babel")); - TCHECK2(*cp, 4); + ND_TCHECK_4(cp); - if(cp[0] != 42) { - printf(" malformed header"); + if(EXTRACT_U_1(cp) != 42) { + ND_PRINT((ndo, " invalid header")); return; } else { - printf(" %d", cp[1]); + ND_PRINT((ndo, " %d", EXTRACT_U_1(cp + 1))); } - switch(cp[1]) { + switch(EXTRACT_U_1(cp + 1)) { case 2: - babel_print_v2(cp,length); + babel_print_v2(ndo, cp, length); break; default: - printf(" unknown version"); + ND_PRINT((ndo, " unknown version")); break; } return; trunc: - printf(" [|babel]"); + ND_PRINT((ndo, " %s", tstr)); return; } @@ -84,14 +90,18 @@ babel_print(const u_char *cp, u_int length) { #define MESSAGE_MH_REQUEST 10 #define MESSAGE_TSPC 11 #define MESSAGE_HMAC 12 +#define MESSAGE_UPDATE_SRC_SPECIFIC 13 +#define MESSAGE_REQUEST_SRC_SPECIFIC 14 +#define MESSAGE_MH_REQUEST_SRC_SPECIFIC 15 /* sub-TLVs */ #define MESSAGE_SUB_PAD1 0 #define MESSAGE_SUB_PADN 1 -#define MESSAGE_SUB_CHANINFO 2 +#define MESSAGE_SUB_DIVERSITY 2 +#define MESSAGE_SUB_TIMESTAMP 3 -/* ChanInfo sub-TLV channel codes */ -static const struct tok chaninfo_str[] = { +/* Diversity sub-TLV channel codes */ +static const struct tok diversity_str[] = { { 0, "reserved" }, { 255, "all" }, { 0, NULL } @@ -102,7 +112,9 @@ format_id(const u_char *id) { static char buf[25]; snprintf(buf, 25, "%02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x", - id[0], id[1], id[2], id[3], id[4], id[5], id[6], id[7]); + EXTRACT_U_1(id), EXTRACT_U_1(id + 1), EXTRACT_U_1(id + 2), + EXTRACT_U_1(id + 3), EXTRACT_U_1(id + 4), EXTRACT_U_1(id + 5), + EXTRACT_U_1(id + 6), EXTRACT_U_1(id + 7)); buf[24] = '\0'; return buf; } @@ -111,32 +123,49 @@ static const unsigned char v4prefix[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF, 0, 0, 0, 0 }; static const char * -format_prefix(const u_char *prefix, unsigned char plen) +format_prefix(netdissect_options *ndo, const u_char *prefix, unsigned char plen) { static char buf[50]; if(plen >= 96 && memcmp(prefix, v4prefix, 12) == 0) - snprintf(buf, 50, "%s/%u", ipaddr_string(prefix + 12), plen - 96); + snprintf(buf, 50, "%s/%u", ipaddr_string(ndo, prefix + 12), plen - 96); else -#ifdef INET6 - snprintf(buf, 50, "%s/%u", ip6addr_string(prefix), plen); -#else - snprintf(buf, 50, "IPv6 addresses not supported"); -#endif + snprintf(buf, 50, "%s/%u", ip6addr_string(ndo, prefix), plen); buf[49] = '\0'; return buf; } static const char * -format_address(const u_char *prefix) +format_address(netdissect_options *ndo, const u_char *prefix) { if(memcmp(prefix, v4prefix, 12) == 0) - return ipaddr_string(prefix + 12); + return ipaddr_string(ndo, prefix + 12); else -#ifdef INET6 - return ip6addr_string(prefix); -#else - return "IPv6 addresses not supported"; -#endif + return ip6addr_string(ndo, prefix); +} + +static const char * +format_interval(const uint16_t i) +{ + static char buf[sizeof("000.00s")]; + + if (i == 0) + return "0.0s (bogus)"; + snprintf(buf, sizeof(buf), "%u.%02us", i / 100, i % 100); + return buf; +} + +static const char * +format_interval_update(const uint16_t i) +{ + return i == 0xFFFF ? "infinity" : format_interval(i); +} + +static const char * +format_timestamp(const uint32_t i) +{ + static char buf[sizeof("0000.000000s")]; + snprintf(buf, sizeof(buf), "%u.%06us", i / 1000000, i % 1000000); + return buf; } /* Return number of octets consumed from the input buffer (not the prefix length @@ -220,80 +249,114 @@ network_address(int ae, const unsigned char *a, unsigned int len, * * o Type 0 stands for Pad1 sub-TLV with the same encoding as the Pad1 TLV. * o Type 1 stands for PadN sub-TLV with the same encoding as the PadN TLV. - * o Type 2 stands for ChanInfo sub-TLV, which propagates diversity routing + * o Type 2 stands for Diversity sub-TLV, which propagates diversity routing * data. Its body is a variable-length sequence of 8-bit unsigned integers, * each representing per-hop number of interferring radio channel for the * prefix. Channel 0 is invalid and must not be used in the sub-TLV, channel * 255 interferes with any other channel. + * o Type 3 stands for Timestamp sub-TLV, used to compute RTT between + * neighbours. In the case of a Hello TLV, the body stores a 32-bits + * timestamp, while in the case of a IHU TLV, two 32-bits timestamps are + * stored. * * Sub-TLV types 0 and 1 are valid for any TLV type, whether sub-TLV type 2 is * only valid for TLV type 8 (Update). Note that within an Update TLV a missing - * ChanInfo sub-TLV is not the same as a ChanInfo sub-TLV with an empty body. + * Diversity sub-TLV is not the same as a Diversity sub-TLV with an empty body. * The former would mean a lack of any claims about the interference, and the - * latter would state that interference is definitely absent. */ + * latter would state that interference is definitely absent. + * A type 3 sub-TLV is valid both for Hello and IHU TLVs, though the exact + * semantic of the sub-TLV is different in each case. + */ static void -subtlvs_print(const u_char *cp, const u_char *ep, const uint8_t tlv_type) { +subtlvs_print(netdissect_options *ndo, + const u_char *cp, const u_char *ep, const uint8_t tlv_type) +{ uint8_t subtype, sublen; const char *sep; + uint32_t t1, t2; while (cp < ep) { - subtype = *cp++; + subtype = EXTRACT_U_1(cp); + cp++; if(subtype == MESSAGE_SUB_PAD1) { - printf(" sub-pad1"); + ND_PRINT((ndo, " sub-pad1")); continue; } if(cp == ep) - goto corrupt; - sublen = *cp++; + goto invalid; + sublen = EXTRACT_U_1(cp); + cp++; if(cp + sublen > ep) - goto corrupt; + goto invalid; switch(subtype) { case MESSAGE_SUB_PADN: - printf(" sub-padn"); + ND_PRINT((ndo, " sub-padn")); cp += sublen; break; - case MESSAGE_SUB_CHANINFO: - printf(" sub-chaninfo"); + case MESSAGE_SUB_DIVERSITY: + ND_PRINT((ndo, " sub-diversity")); if (sublen == 0) { - printf(" empty"); + ND_PRINT((ndo, " empty")); break; } sep = " "; while(sublen--) { - printf("%s%s", sep, tok2str(chaninfo_str, "%u", *cp++)); + ND_PRINT((ndo, "%s%s", sep, tok2str(diversity_str, "%u", EXTRACT_U_1(cp)))); + cp++; sep = "-"; } - if(tlv_type != MESSAGE_UPDATE) - printf(" (bogus)"); + if(tlv_type != MESSAGE_UPDATE && + tlv_type != MESSAGE_UPDATE_SRC_SPECIFIC) + ND_PRINT((ndo, " (bogus)")); + break; + case MESSAGE_SUB_TIMESTAMP: + ND_PRINT((ndo, " sub-timestamp")); + if(tlv_type == MESSAGE_HELLO) { + if(sublen < 4) + goto invalid; + t1 = EXTRACT_BE_U_4(cp); + ND_PRINT((ndo, " %s", format_timestamp(t1))); + } else if(tlv_type == MESSAGE_IHU) { + if(sublen < 8) + goto invalid; + t1 = EXTRACT_BE_U_4(cp); + ND_PRINT((ndo, " %s", format_timestamp(t1))); + t2 = EXTRACT_BE_U_4(cp + 4); + ND_PRINT((ndo, "|%s", format_timestamp(t2))); + } else + ND_PRINT((ndo, " (bogus)")); + cp += sublen; break; default: - printf(" sub-unknown-0x%02x", subtype); + ND_PRINT((ndo, " sub-unknown-0x%02x", subtype)); cp += sublen; } /* switch */ } /* while */ return; - corrupt: - printf(" (corrupt)"); + invalid: + ND_PRINT((ndo, "%s", istr)); } #define ICHECK(i, l) \ - if ((i) + (l) > bodylen || (i) + (l) > length) goto corrupt; + if ((i) + (l) > bodylen || (i) + (l) > length) goto invalid; static void -babel_print_v2(const u_char *cp, u_int length) { +babel_print_v2(netdissect_options *ndo, + const u_char *cp, u_int length) +{ u_int i; u_short bodylen; u_char v4_prefix[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF, 0xFF, 0, 0, 0, 0 }; u_char v6_prefix[16] = {0}; - TCHECK2(*cp, 4); + ND_TCHECK_4(cp); if (length < 4) - goto corrupt; - bodylen = EXTRACT_16BITS(cp + 2); - printf(" (%u)", bodylen); + goto invalid; + bodylen = EXTRACT_BE_U_2(cp + 2); + ND_PRINT((ndo, " (%u)", bodylen)); /* Process the TLVs in the body */ i = 0; @@ -303,237 +366,363 @@ babel_print_v2(const u_char *cp, u_int length) { message = cp + 4 + i; - TCHECK2(*message, 1); - if((type = message[0]) == MESSAGE_PAD1) { - printf(vflag ? "\n\tPad 1" : " pad1"); + ND_TCHECK_1(message); + if((type = EXTRACT_U_1(message)) == MESSAGE_PAD1) { + ND_PRINT((ndo, ndo->ndo_vflag ? "\n\tPad 1" : " pad1")); i += 1; continue; } - TCHECK2(*message, 2); + ND_TCHECK_2(message); ICHECK(i, 2); - len = message[1]; + len = EXTRACT_U_1(message + 1); - TCHECK2(*message, 2 + len); + ND_TCHECK_LEN(message, 2 + len); ICHECK(i, 2 + len); switch(type) { case MESSAGE_PADN: { - if(!vflag) - printf(" padN"); + if (!ndo->ndo_vflag) + ND_PRINT((ndo, " padN")); else - printf("\n\tPad %d", len + 2); + ND_PRINT((ndo, "\n\tPad %d", len + 2)); } break; case MESSAGE_ACK_REQ: { u_short nonce, interval; - if(!vflag) - printf(" ack-req"); + if (!ndo->ndo_vflag) + ND_PRINT((ndo, " ack-req")); else { - printf("\n\tAcknowledgment Request "); - if(len < 6) goto corrupt; - nonce = EXTRACT_16BITS(message + 4); - interval = EXTRACT_16BITS(message + 6); - printf("%04x %d", nonce, interval); + ND_PRINT((ndo, "\n\tAcknowledgment Request ")); + if(len < 6) goto invalid; + nonce = EXTRACT_BE_U_2(message + 4); + interval = EXTRACT_BE_U_2(message + 6); + ND_PRINT((ndo, "%04x %s", nonce, format_interval(interval))); } } break; case MESSAGE_ACK: { u_short nonce; - if(!vflag) - printf(" ack"); + if (!ndo->ndo_vflag) + ND_PRINT((ndo, " ack")); else { - printf("\n\tAcknowledgment "); - if(len < 2) goto corrupt; - nonce = EXTRACT_16BITS(message + 2); - printf("%04x", nonce); + ND_PRINT((ndo, "\n\tAcknowledgment ")); + if(len < 2) goto invalid; + nonce = EXTRACT_BE_U_2(message + 2); + ND_PRINT((ndo, "%04x", nonce)); } } break; case MESSAGE_HELLO: { u_short seqno, interval; - if(!vflag) - printf(" hello"); + if (!ndo->ndo_vflag) + ND_PRINT((ndo, " hello")); else { - printf("\n\tHello "); - if(len < 6) goto corrupt; - seqno = EXTRACT_16BITS(message + 4); - interval = EXTRACT_16BITS(message + 6); - printf("seqno %u interval %u", seqno, interval); + ND_PRINT((ndo, "\n\tHello ")); + if(len < 6) goto invalid; + seqno = EXTRACT_BE_U_2(message + 4); + interval = EXTRACT_BE_U_2(message + 6); + ND_PRINT((ndo, "seqno %u interval %s", seqno, format_interval(interval))); + /* Extra data. */ + if(len > 6) + subtlvs_print(ndo, message + 8, message + 2 + len, type); } } break; case MESSAGE_IHU: { unsigned short txcost, interval; - if(!vflag) - printf(" ihu"); + if (!ndo->ndo_vflag) + ND_PRINT((ndo, " ihu")); else { u_char address[16]; int rc; - printf("\n\tIHU "); - if(len < 6) goto corrupt; - txcost = EXTRACT_16BITS(message + 4); - interval = EXTRACT_16BITS(message + 6); - rc = network_address(message[2], message + 8, len - 6, address); - if(rc < 0) { printf("[|babel]"); break; } - printf("%s txcost %u interval %d", - format_address(address), txcost, interval); + ND_PRINT((ndo, "\n\tIHU ")); + if(len < 6) goto invalid; + txcost = EXTRACT_BE_U_2(message + 4); + interval = EXTRACT_BE_U_2(message + 6); + rc = network_address(EXTRACT_U_1(message + 2), message + 8, + len - 6, address); + if(rc < 0) { ND_PRINT((ndo, "%s", tstr)); break; } + ND_PRINT((ndo, "%s txcost %u interval %s", + format_address(ndo, address), txcost, format_interval(interval))); + /* Extra data. */ + if((u_int)rc < len - 6) + subtlvs_print(ndo, message + 8 + rc, message + 2 + len, + type); } } break; case MESSAGE_ROUTER_ID: { - if(!vflag) - printf(" router-id"); + if (!ndo->ndo_vflag) + ND_PRINT((ndo, " router-id")); else { - printf("\n\tRouter Id"); - if(len < 10) goto corrupt; - printf(" %s", format_id(message + 4)); + ND_PRINT((ndo, "\n\tRouter Id")); + if(len < 10) goto invalid; + ND_PRINT((ndo, " %s", format_id(message + 4))); } } break; case MESSAGE_NH: { - if(!vflag) - printf(" nh"); + if (!ndo->ndo_vflag) + ND_PRINT((ndo, " nh")); else { int rc; u_char nh[16]; - printf("\n\tNext Hop"); - if(len < 2) goto corrupt; - rc = network_address(message[2], message + 4, len - 2, nh); - if(rc < 0) goto corrupt; - printf(" %s", format_address(nh)); + ND_PRINT((ndo, "\n\tNext Hop")); + if(len < 2) goto invalid; + rc = network_address(EXTRACT_U_1(message + 2), message + 4, + len - 2, nh); + if(rc < 0) goto invalid; + ND_PRINT((ndo, " %s", format_address(ndo, nh))); } } break; case MESSAGE_UPDATE: { - if(!vflag) { - printf(" update"); + if (!ndo->ndo_vflag) { + ND_PRINT((ndo, " update")); if(len < 1) - printf("/truncated"); + ND_PRINT((ndo, "/truncated")); else - printf("%s%s%s", - (message[3] & 0x80) ? "/prefix": "", - (message[3] & 0x40) ? "/id" : "", - (message[3] & 0x3f) ? "/unknown" : ""); + ND_PRINT((ndo, "%s%s%s", + (EXTRACT_U_1(message + 3) & 0x80) ? "/prefix": "", + (EXTRACT_U_1(message + 3) & 0x40) ? "/id" : "", + (EXTRACT_U_1(message + 3) & 0x3f) ? "/unknown" : "")); } else { u_short interval, seqno, metric; u_char plen; int rc; u_char prefix[16]; - printf("\n\tUpdate"); - if(len < 10) goto corrupt; - plen = message[4] + (message[2] == 1 ? 96 : 0); - rc = network_prefix(message[2], message[4], message[5], + ND_PRINT((ndo, "\n\tUpdate")); + if(len < 10) goto invalid; + plen = EXTRACT_U_1(message + 4) + (EXTRACT_U_1(message + 2) == 1 ? 96 : 0); + rc = network_prefix(EXTRACT_U_1(message + 2), + EXTRACT_U_1(message + 4), + EXTRACT_U_1(message + 5), message + 12, - message[2] == 1 ? v4_prefix : v6_prefix, + EXTRACT_U_1(message + 2) == 1 ? v4_prefix : v6_prefix, len - 10, prefix); - if(rc < 0) goto corrupt; - interval = EXTRACT_16BITS(message + 6); - seqno = EXTRACT_16BITS(message + 8); - metric = EXTRACT_16BITS(message + 10); - printf("%s%s%s %s metric %u seqno %u interval %u", - (message[3] & 0x80) ? "/prefix": "", - (message[3] & 0x40) ? "/id" : "", - (message[3] & 0x3f) ? "/unknown" : "", - format_prefix(prefix, plen), - metric, seqno, interval); - if(message[3] & 0x80) { - if(message[2] == 1) + if(rc < 0) goto invalid; + interval = EXTRACT_BE_U_2(message + 6); + seqno = EXTRACT_BE_U_2(message + 8); + metric = EXTRACT_BE_U_2(message + 10); + ND_PRINT((ndo, "%s%s%s %s metric %u seqno %u interval %s", + (EXTRACT_U_1(message + 3) & 0x80) ? "/prefix": "", + (EXTRACT_U_1(message + 3) & 0x40) ? "/id" : "", + (EXTRACT_U_1(message + 3) & 0x3f) ? "/unknown" : "", + format_prefix(ndo, prefix, plen), + metric, seqno, format_interval_update(interval))); + if(EXTRACT_U_1(message + 3) & 0x80) { + if(EXTRACT_U_1(message + 2) == 1) memcpy(v4_prefix, prefix, 16); else memcpy(v6_prefix, prefix, 16); } /* extra data? */ - if(rc < len - 10) - subtlvs_print(message + 12 + rc, message + 2 + len, type); + if((u_int)rc < len - 10) + subtlvs_print(ndo, message + 12 + rc, message + 2 + len, type); } } break; case MESSAGE_REQUEST: { - if(!vflag) - printf(" request"); + if (!ndo->ndo_vflag) + ND_PRINT((ndo, " request")); else { int rc; u_char prefix[16], plen; - printf("\n\tRequest "); - if(len < 2) goto corrupt; - plen = message[3] + (message[2] == 1 ? 96 : 0); - rc = network_prefix(message[2], message[3], 0, + ND_PRINT((ndo, "\n\tRequest ")); + if(len < 2) goto invalid; + plen = EXTRACT_U_1(message + 3) + (EXTRACT_U_1(message + 2) == 1 ? 96 : 0); + rc = network_prefix(EXTRACT_U_1(message + 2), + EXTRACT_U_1(message + 3), 0, message + 4, NULL, len - 2, prefix); - if(rc < 0) goto corrupt; - plen = message[3] + (message[2] == 1 ? 96 : 0); - printf("for %s", - message[2] == 0 ? "any" : format_prefix(prefix, plen)); + if(rc < 0) goto invalid; + ND_PRINT((ndo, "for %s", + EXTRACT_U_1(message + 2) == 0 ? "any" : format_prefix(ndo, prefix, plen))); } } break; case MESSAGE_MH_REQUEST : { - if(!vflag) - printf(" mh-request"); + if (!ndo->ndo_vflag) + ND_PRINT((ndo, " mh-request")); else { int rc; u_short seqno; u_char prefix[16], plen; - printf("\n\tMH-Request "); - if(len < 14) goto corrupt; - seqno = EXTRACT_16BITS(message + 4); - rc = network_prefix(message[2], message[3], 0, + ND_PRINT((ndo, "\n\tMH-Request ")); + if(len < 14) goto invalid; + seqno = EXTRACT_BE_U_2(message + 4); + rc = network_prefix(EXTRACT_U_1(message + 2), + EXTRACT_U_1(message + 3), 0, message + 16, NULL, len - 14, prefix); - if(rc < 0) goto corrupt; - plen = message[3] + (message[2] == 1 ? 96 : 0); - printf("(%u hops) for %s seqno %u id %s", - message[6], format_prefix(prefix, plen), - seqno, format_id(message + 8)); + if(rc < 0) goto invalid; + plen = EXTRACT_U_1(message + 3) + (EXTRACT_U_1(message + 2) == 1 ? 96 : 0); + ND_PRINT((ndo, "(%u hops) for %s seqno %u id %s", + EXTRACT_U_1(message + 6), format_prefix(ndo, prefix, plen), + seqno, format_id(message + 8))); } } break; case MESSAGE_TSPC : - if(!vflag) - printf(" tspc"); + if (!ndo->ndo_vflag) + ND_PRINT((ndo, " tspc")); else { - printf("\n\tTS/PC "); - if(len < 6) goto corrupt; - printf("timestamp %u packetcounter %u", EXTRACT_32BITS (message + 4), - EXTRACT_16BITS(message + 2)); + ND_PRINT((ndo, "\n\tTS/PC ")); + if(len < 6) goto invalid; + ND_PRINT((ndo, "timestamp %u packetcounter %u", EXTRACT_BE_U_4(message + 4), + EXTRACT_BE_U_2(message + 2))); } break; case MESSAGE_HMAC : { - if(!vflag) - printf(" hmac"); + if (!ndo->ndo_vflag) + ND_PRINT((ndo, " hmac")); else { unsigned j; - printf("\n\tHMAC "); - if(len < 18) goto corrupt; - printf("key-id %u digest-%u ", EXTRACT_16BITS(message + 2), len - 2); + ND_PRINT((ndo, "\n\tHMAC ")); + if(len < 18) goto invalid; + ND_PRINT((ndo, "key-id %u digest-%u ", EXTRACT_BE_U_2(message + 2), len - 2)); for (j = 0; j < len - 2; j++) - printf ("%02X", message[4 + j]); + ND_PRINT((ndo, "%02X", EXTRACT_U_1(message + j + 4))); + } + } + break; + + case MESSAGE_UPDATE_SRC_SPECIFIC : { + if(!ndo->ndo_vflag) { + ND_PRINT((ndo, " ss-update")); + } else { + u_char prefix[16], src_prefix[16]; + u_short interval, seqno, metric; + u_char ae, plen, src_plen, omitted; + int rc; + int parsed_len = 10; + ND_PRINT((ndo, "\n\tSS-Update")); + if(len < 10) goto invalid; + ae = EXTRACT_U_1(message + 2); + src_plen = EXTRACT_U_1(message + 3); + plen = EXTRACT_U_1(message + 4); + omitted = EXTRACT_U_1(message + 5); + interval = EXTRACT_BE_U_2(message + 6); + seqno = EXTRACT_BE_U_2(message + 8); + metric = EXTRACT_BE_U_2(message + 10); + rc = network_prefix(ae, plen, omitted, message + 2 + parsed_len, + ae == 1 ? v4_prefix : v6_prefix, + len - parsed_len, prefix); + if(rc < 0) goto invalid; + if(ae == 1) + plen += 96; + parsed_len += rc; + rc = network_prefix(ae, src_plen, 0, message + 2 + parsed_len, + NULL, len - parsed_len, src_prefix); + if(rc < 0) goto invalid; + if(ae == 1) + src_plen += 96; + parsed_len += rc; + + ND_PRINT((ndo, " %s from", format_prefix(ndo, prefix, plen))); + ND_PRINT((ndo, " %s metric %u seqno %u interval %s", + format_prefix(ndo, src_prefix, src_plen), + metric, seqno, format_interval_update(interval))); + /* extra data? */ + if((u_int)parsed_len < len) + subtlvs_print(ndo, message + 2 + parsed_len, + message + 2 + len, type); } } break; + + case MESSAGE_REQUEST_SRC_SPECIFIC : { + if(!ndo->ndo_vflag) + ND_PRINT((ndo, " ss-request")); + else { + int rc, parsed_len = 3; + u_char ae, plen, src_plen, prefix[16], src_prefix[16]; + ND_PRINT((ndo, "\n\tSS-Request ")); + if(len < 3) goto invalid; + ae = EXTRACT_U_1(message + 2); + plen = EXTRACT_U_1(message + 3); + src_plen = EXTRACT_U_1(message + 4); + rc = network_prefix(ae, plen, 0, message + 2 + parsed_len, + NULL, len - parsed_len, prefix); + if(rc < 0) goto invalid; + if(ae == 1) + plen += 96; + parsed_len += rc; + rc = network_prefix(ae, src_plen, 0, message + 2 + parsed_len, + NULL, len - parsed_len, src_prefix); + if(rc < 0) goto invalid; + if(ae == 1) + src_plen += 96; + parsed_len += rc; + if(ae == 0) { + ND_PRINT((ndo, "for any")); + } else { + ND_PRINT((ndo, "for (%s, ", format_prefix(ndo, prefix, plen))); + ND_PRINT((ndo, "%s)", format_prefix(ndo, src_prefix, src_plen))); + } + } + } + break; + + case MESSAGE_MH_REQUEST_SRC_SPECIFIC : { + if(!ndo->ndo_vflag) + ND_PRINT((ndo, " ss-mh-request")); + else { + int rc, parsed_len = 14; + u_short seqno; + u_char ae, plen, src_plen, prefix[16], src_prefix[16], hopc; + const u_char *router_id = NULL; + ND_PRINT((ndo, "\n\tSS-MH-Request ")); + if(len < 14) goto invalid; + ae = EXTRACT_U_1(message + 2); + plen = EXTRACT_U_1(message + 3); + seqno = EXTRACT_BE_U_2(message + 4); + hopc = EXTRACT_U_1(message + 6); + src_plen = EXTRACT_U_1(message + 7); + router_id = message + 8; + rc = network_prefix(ae, plen, 0, message + 2 + parsed_len, + NULL, len - parsed_len, prefix); + if(rc < 0) goto invalid; + if(ae == 1) + plen += 96; + parsed_len += rc; + rc = network_prefix(ae, src_plen, 0, message + 2 + parsed_len, + NULL, len - parsed_len, src_prefix); + if(rc < 0) goto invalid; + if(ae == 1) + src_plen += 96; + ND_PRINT((ndo, "(%u hops) for (%s, ", + hopc, format_prefix(ndo, prefix, plen))); + ND_PRINT((ndo, "%s) seqno %u id %s", + format_prefix(ndo, src_prefix, src_plen), + seqno, format_id(router_id))); + } + } + break; + default: - if(!vflag) - printf(" unknown"); + if (!ndo->ndo_vflag) + ND_PRINT((ndo, " unknown")); else - printf("\n\tUnknown message type %d", type); + ND_PRINT((ndo, "\n\tUnknown message type %d", type)); } i += len + 2; } return; trunc: - printf(" [|babel]"); + ND_PRINT((ndo, " %s", tstr)); return; - corrupt: - printf(" (corrupt)"); + invalid: + ND_PRINT((ndo, "%s", istr)); return; }