X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/d526e47658b691c4b5ca0d29759d1f67b7fb037b..a8abce5c5e2dce2ba6dbccd5d3829da104b80f9c:/print-domain.c diff --git a/print-domain.c b/print-domain.c index 541d9003..4ea39234 100644 --- a/print-domain.c +++ b/print-domain.c @@ -22,10 +22,10 @@ /* \summary: Domain Name System (DNS) printer */ #ifdef HAVE_CONFIG_H -#include "config.h" +#include #endif -#include +#include "netdissect-stdinc.h" #include @@ -90,9 +90,9 @@ static const u_char * blabel_print(netdissect_options *ndo, const u_char *cp) { - int bitlen, slen, b; + u_int bitlen, slen, b; const u_char *bitp, *lim; - char tc; + uint8_t tc; if (!ND_TTEST_1(cp)) return(NULL); @@ -102,26 +102,26 @@ blabel_print(netdissect_options *ndo, lim = cp + 1 + slen; /* print the bit string as a hex string */ - ND_PRINT((ndo, "\\[x")); + ND_PRINT("\\[x"); for (bitp = cp + 1, b = bitlen; bitp < lim && b > 7; b -= 8, bitp++) { ND_TCHECK_1(bitp); - ND_PRINT((ndo, "%02x", EXTRACT_U_1(bitp))); + ND_PRINT("%02x", EXTRACT_U_1(bitp)); } if (b > 4) { ND_TCHECK_1(bitp); tc = EXTRACT_U_1(bitp); bitp++; - ND_PRINT((ndo, "%02x", tc & (0xff << (8 - b)))); + ND_PRINT("%02x", tc & (0xff << (8 - b))); } else if (b > 0) { ND_TCHECK_1(bitp); tc = EXTRACT_U_1(bitp); bitp++; - ND_PRINT((ndo, "%1x", ((tc >> 4) & 0x0f) & (0x0f << (4 - b)))); + ND_PRINT("%1x", ((tc >> 4) & 0x0f) & (0x0f << (4 - b))); } - ND_PRINT((ndo, "/%d]", bitlen)); + ND_PRINT("/%u]", bitlen); return lim; trunc: - ND_PRINT((ndo, ".../%d]", bitlen)); + ND_PRINT(".../%u]", bitlen); return NULL; } @@ -135,9 +135,9 @@ labellen(netdissect_options *ndo, return(-1); i = EXTRACT_U_1(cp); if ((i & INDIR_MASK) == EDNS0_MASK) { - int bitlen, elt; + u_int bitlen, elt; if ((elt = (i & ~INDIR_MASK)) != EDNS0_ELT_BITLABEL) { - ND_PRINT((ndo, "", elt)); + ND_PRINT("", elt); return(-1); } if (!ND_TTEST_1(cp + 1)) @@ -156,7 +156,7 @@ ns_nprint(netdissect_options *ndo, u_int i, l; const u_char *rp = NULL; int compress = 0; - int elt; + u_int elt; u_int offset, max_offset; if ((l = labellen(ndo, cp)) == (u_int)-1) @@ -192,7 +192,7 @@ ns_nprint(netdissect_options *ndo, * the packet). */ if (offset >= max_offset) { - ND_PRINT((ndo, "")); + ND_PRINT(""); return(NULL); } max_offset = offset; @@ -214,16 +214,16 @@ ns_nprint(netdissect_options *ndo, break; default: /* unknown ELT */ - ND_PRINT((ndo, "", elt)); + ND_PRINT("", elt); return(NULL); } } else { - if (fn_printn(ndo, cp, l, ndo->ndo_snapend)) + if (nd_printn(ndo, cp, l, ndo->ndo_snapend)) return(NULL); } cp += l; - ND_PRINT((ndo, ".")); + ND_PRINT("."); if ((l = labellen(ndo, cp)) == (u_int)-1) return(NULL); if (!ND_TTEST_1(cp)) @@ -234,7 +234,7 @@ ns_nprint(netdissect_options *ndo, rp += l + 1; } else - ND_PRINT((ndo, ".")); + ND_PRINT("."); return (rp); } @@ -249,7 +249,7 @@ ns_cprint(netdissect_options *ndo, return (NULL); i = EXTRACT_U_1(cp); cp++; - if (fn_printn(ndo, cp, i, ndo->ndo_snapend)) + if (nd_printn(ndo, cp, i, ndo->ndo_snapend)) return (NULL); return (cp + i); } @@ -348,7 +348,7 @@ ns_qprint(netdissect_options *ndo, /* print the qtype */ i = EXTRACT_BE_U_2(cp); cp += 2; - ND_PRINT((ndo, " %s", tok2str(ns_type2str, "Type%d", i))); + ND_PRINT(" %s", tok2str(ns_type2str, "Type%u", i)); /* print the qclass (if it's not IN) */ i = EXTRACT_BE_U_2(cp); cp += 2; @@ -357,12 +357,12 @@ ns_qprint(netdissect_options *ndo, else class = i; if (class != C_IN) - ND_PRINT((ndo, " %s", tok2str(ns_class2str, "(Class %d)", class))); + ND_PRINT(" %s", tok2str(ns_class2str, "(Class %u)", class)); if (is_mdns) { - ND_PRINT((ndo, i & C_QU ? " (QU)" : " (QM)")); + ND_PRINT(i & C_QU ? " (QU)" : " (QM)"); } - ND_PRINT((ndo, "? ")); + ND_PRINT("? "); cp = ns_nprint(ndo, np, bp); return(cp ? cp + 4 : NULL); } @@ -377,7 +377,7 @@ ns_rprint(netdissect_options *ndo, const u_char *rp; if (ndo->ndo_vflag) { - ND_PRINT((ndo, " ")); + ND_PRINT(" "); if ((cp = ns_nprint(ndo, cp, bp)) == NULL) return NULL; } else @@ -397,10 +397,10 @@ ns_rprint(netdissect_options *ndo, else class = i; if (class != C_IN && typ != T_OPT) - ND_PRINT((ndo, " %s", tok2str(ns_class2str, "(Class %d)", class))); + ND_PRINT(" %s", tok2str(ns_class2str, "(Class %u)", class)); if (is_mdns) { if (i & C_CACHE_FLUSH) - ND_PRINT((ndo, " (Cache flush)")); + ND_PRINT(" (Cache flush)"); } if (typ == T_OPT) { @@ -411,9 +411,9 @@ ns_rprint(netdissect_options *ndo, cp += 2; } else if (ndo->ndo_vflag > 2) { /* print ttl */ - ND_PRINT((ndo, " [")); + ND_PRINT(" ["); unsigned_relts_print(ndo, EXTRACT_BE_U_4(cp)); - ND_PRINT((ndo, "]")); + ND_PRINT("]"); cp += 4; } else { /* ignore ttl */ @@ -425,15 +425,15 @@ ns_rprint(netdissect_options *ndo, rp = cp + len; - ND_PRINT((ndo, " %s", tok2str(ns_type2str, "Type%d", typ))); + ND_PRINT(" %s", tok2str(ns_type2str, "Type%u", typ)); if (rp > ndo->ndo_snapend) return(NULL); switch (typ) { case T_A: - if (!ND_TTEST_LEN(cp, sizeof(struct in_addr))) + if (!ND_TTEST_LEN(cp, sizeof(nd_ipv4))) return(NULL); - ND_PRINT((ndo, " %s", intoa(htonl(EXTRACT_BE_U_4(cp))))); + ND_PRINT(" %s", intoa(EXTRACT_IPV4_TO_NETWORK_ORDER(cp))); break; case T_NS: @@ -442,7 +442,7 @@ ns_rprint(netdissect_options *ndo, #ifdef T_DNAME case T_DNAME: #endif - ND_PRINT((ndo, " ")); + ND_PRINT(" "); if (ns_nprint(ndo, cp, bp) == NULL) return(NULL); break; @@ -450,62 +450,62 @@ ns_rprint(netdissect_options *ndo, case T_SOA: if (!ndo->ndo_vflag) break; - ND_PRINT((ndo, " ")); + ND_PRINT(" "); if ((cp = ns_nprint(ndo, cp, bp)) == NULL) return(NULL); - ND_PRINT((ndo, " ")); + ND_PRINT(" "); if ((cp = ns_nprint(ndo, cp, bp)) == NULL) return(NULL); if (!ND_TTEST_LEN(cp, 5 * 4)) return(NULL); - ND_PRINT((ndo, " %u", EXTRACT_BE_U_4(cp))); + ND_PRINT(" %u", EXTRACT_BE_U_4(cp)); cp += 4; - ND_PRINT((ndo, " %u", EXTRACT_BE_U_4(cp))); + ND_PRINT(" %u", EXTRACT_BE_U_4(cp)); cp += 4; - ND_PRINT((ndo, " %u", EXTRACT_BE_U_4(cp))); + ND_PRINT(" %u", EXTRACT_BE_U_4(cp)); cp += 4; - ND_PRINT((ndo, " %u", EXTRACT_BE_U_4(cp))); + ND_PRINT(" %u", EXTRACT_BE_U_4(cp)); cp += 4; - ND_PRINT((ndo, " %u", EXTRACT_BE_U_4(cp))); + ND_PRINT(" %u", EXTRACT_BE_U_4(cp)); cp += 4; break; case T_MX: - ND_PRINT((ndo, " ")); + ND_PRINT(" "); if (!ND_TTEST_2(cp)) return(NULL); if (ns_nprint(ndo, cp + 2, bp) == NULL) return(NULL); - ND_PRINT((ndo, " %d", EXTRACT_BE_U_2(cp))); + ND_PRINT(" %u", EXTRACT_BE_U_2(cp)); break; case T_TXT: while (cp < rp) { - ND_PRINT((ndo, " \"")); + ND_PRINT(" \""); cp = ns_cprint(ndo, cp); if (cp == NULL) return(NULL); - ND_PRINT((ndo, "\"")); + ND_PRINT("\""); } break; case T_SRV: - ND_PRINT((ndo, " ")); + ND_PRINT(" "); if (!ND_TTEST_6(cp)) return(NULL); if (ns_nprint(ndo, cp + 6, bp) == NULL) return(NULL); - ND_PRINT((ndo, ":%d %d %d", EXTRACT_BE_U_2(cp + 4), - EXTRACT_BE_U_2(cp), EXTRACT_BE_U_2(cp + 2))); + ND_PRINT(":%u %u %u", EXTRACT_BE_U_2(cp + 4), + EXTRACT_BE_U_2(cp), EXTRACT_BE_U_2(cp + 2)); break; case T_AAAA: { char ntop_buf[INET6_ADDRSTRLEN]; - if (!ND_TTEST_LEN(cp, sizeof(struct in6_addr))) + if (!ND_TTEST_LEN(cp, sizeof(nd_ipv6))) return(NULL); - ND_PRINT((ndo, " %s", - addrtostr6(cp, ntop_buf, sizeof(ntop_buf)))); + ND_PRINT(" %s", + addrtostr6(cp, ntop_buf, sizeof(ntop_buf))); break; } @@ -521,18 +521,18 @@ ns_rprint(netdissect_options *ndo, pbit = EXTRACT_U_1(cp); pbyte = (pbit & ~7) / 8; if (pbit > 128) { - ND_PRINT((ndo, " %u(bad plen)", pbit)); + ND_PRINT(" %u(bad plen)", pbit); break; } else if (pbit < 128) { if (!ND_TTEST_LEN(cp + 1, sizeof(a) - pbyte)) return(NULL); memset(&a, 0, sizeof(a)); memcpy(&a.s6_addr[pbyte], cp + 1, sizeof(a) - pbyte); - ND_PRINT((ndo, " %u %s", pbit, - addrtostr6(&a, ntop_buf, sizeof(ntop_buf)))); + ND_PRINT(" %u %s", pbit, + addrtostr6(&a, ntop_buf, sizeof(ntop_buf))); } if (pbit > 0) { - ND_PRINT((ndo, " ")); + ND_PRINT(" "); if (ns_nprint(ndo, cp + 1 + sizeof(a) - pbyte, bp) == NULL) return(NULL); } @@ -540,15 +540,15 @@ ns_rprint(netdissect_options *ndo, } case T_OPT: - ND_PRINT((ndo, " UDPsize=%u", class)); + ND_PRINT(" UDPsize=%u", class); if (opt_flags & 0x8000) - ND_PRINT((ndo, " DO")); + ND_PRINT(" DO"); break; case T_UNSPECA: /* One long string */ if (!ND_TTEST_LEN(cp, len)) return(NULL); - if (fn_printn(ndo, cp, len, ndo->ndo_snapend)) + if (nd_printn(ndo, cp, len, ndo->ndo_snapend)) return(NULL); break; @@ -558,29 +558,29 @@ ns_rprint(netdissect_options *ndo, return(NULL); if (!ndo->ndo_vflag) break; - ND_PRINT((ndo, " ")); + ND_PRINT(" "); if ((cp = ns_nprint(ndo, cp, bp)) == NULL) return(NULL); cp += 6; if (!ND_TTEST_2(cp)) return(NULL); - ND_PRINT((ndo, " fudge=%u", EXTRACT_BE_U_2(cp))); + ND_PRINT(" fudge=%u", EXTRACT_BE_U_2(cp)); cp += 2; if (!ND_TTEST_2(cp)) return(NULL); - ND_PRINT((ndo, " maclen=%u", EXTRACT_BE_U_2(cp))); + ND_PRINT(" maclen=%u", EXTRACT_BE_U_2(cp)); cp += 2 + EXTRACT_BE_U_2(cp); if (!ND_TTEST_2(cp)) return(NULL); - ND_PRINT((ndo, " origid=%u", EXTRACT_BE_U_2(cp))); + ND_PRINT(" origid=%u", EXTRACT_BE_U_2(cp)); cp += 2; if (!ND_TTEST_2(cp)) return(NULL); - ND_PRINT((ndo, " error=%u", EXTRACT_BE_U_2(cp))); + ND_PRINT(" error=%u", EXTRACT_BE_U_2(cp)); cp += 2; if (!ND_TTEST_2(cp)) return(NULL); - ND_PRINT((ndo, " otherlen=%u", EXTRACT_BE_U_2(cp))); + ND_PRINT(" otherlen=%u", EXTRACT_BE_U_2(cp)); cp += 2; } } @@ -598,6 +598,7 @@ domain_print(netdissect_options *ndo, const u_char *cp; uint16_t b2; + ndo->ndo_protocol = "domain"; np = (const dns_header_t *)bp; ND_TCHECK_SIZE(np); flags = EXTRACT_BE_U_2(np->flags); @@ -609,24 +610,24 @@ domain_print(netdissect_options *ndo, if (DNS_QR(flags)) { /* this is a response */ - ND_PRINT((ndo, "%d%s%s%s%s%s%s", + ND_PRINT("%u%s%s%s%s%s%s", EXTRACT_BE_U_2(np->id), ns_ops[DNS_OPCODE(flags)], ns_resp[DNS_RCODE(flags)], DNS_AA(flags)? "*" : "", DNS_RA(flags)? "" : "-", DNS_TC(flags)? "|" : "", - DNS_AD(flags)? "$" : "")); + DNS_AD(flags)? "$" : ""); if (qdcount != 1) - ND_PRINT((ndo, " [%uq]", qdcount)); + ND_PRINT(" [%uq]", qdcount); /* Print QUESTION section on -vv */ cp = (const u_char *)(np + 1); for (i = 0; i < qdcount; i++) { if (i != 0) - ND_PRINT((ndo, ",")); + ND_PRINT(","); if (ndo->ndo_vflag > 1) { - ND_PRINT((ndo, " q:")); + ND_PRINT(" q:"); if ((cp = ns_qprint(ndo, cp, bp, is_mdns)) == NULL) goto trunc; } else { @@ -635,13 +636,13 @@ domain_print(netdissect_options *ndo, cp += 4; /* skip QTYPE and QCLASS */ } } - ND_PRINT((ndo, " %u/%u/%u", ancount, nscount, arcount)); + ND_PRINT(" %u/%u/%u", ancount, nscount, arcount); if (ancount) { if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL) goto trunc; ancount--; while (cp < ndo->ndo_snapend && ancount) { - ND_PRINT((ndo, ",")); + ND_PRINT(","); if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL) goto trunc; ancount--; @@ -652,12 +653,12 @@ domain_print(netdissect_options *ndo, /* Print NS and AR sections on -vv */ if (ndo->ndo_vflag > 1) { if (cp < ndo->ndo_snapend && nscount) { - ND_PRINT((ndo, " ns:")); + ND_PRINT(" ns:"); if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL) goto trunc; nscount--; while (cp < ndo->ndo_snapend && nscount) { - ND_PRINT((ndo, ",")); + ND_PRINT(","); if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL) goto trunc; nscount--; @@ -666,12 +667,12 @@ domain_print(netdissect_options *ndo, if (nscount) goto trunc; if (cp < ndo->ndo_snapend && arcount) { - ND_PRINT((ndo, " ar:")); + ND_PRINT(" ar:"); if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL) goto trunc; arcount--; while (cp < ndo->ndo_snapend && arcount) { - ND_PRINT((ndo, ",")); + ND_PRINT(","); if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL) goto trunc; arcount--; @@ -683,31 +684,31 @@ domain_print(netdissect_options *ndo, } else { /* this is a request */ - ND_PRINT((ndo, "%d%s%s%s", EXTRACT_BE_U_2(np->id), ns_ops[DNS_OPCODE(flags)], + ND_PRINT("%u%s%s%s", EXTRACT_BE_U_2(np->id), ns_ops[DNS_OPCODE(flags)], DNS_RD(flags) ? "+" : "", - DNS_CD(flags) ? "%" : "")); + DNS_CD(flags) ? "%" : ""); /* any weirdness? */ b2 = EXTRACT_BE_U_2(((const u_short *)np) + 1); if (b2 & 0x6cf) - ND_PRINT((ndo, " [b2&3=0x%x]", b2)); + ND_PRINT(" [b2&3=0x%x]", b2); if (DNS_OPCODE(flags) == IQUERY) { if (qdcount) - ND_PRINT((ndo, " [%uq]", qdcount)); + ND_PRINT(" [%uq]", qdcount); if (ancount != 1) - ND_PRINT((ndo, " [%ua]", ancount)); + ND_PRINT(" [%ua]", ancount); } else { if (ancount) - ND_PRINT((ndo, " [%ua]", ancount)); + ND_PRINT(" [%ua]", ancount); if (qdcount != 1) - ND_PRINT((ndo, " [%uq]", qdcount)); + ND_PRINT(" [%uq]", qdcount); } if (nscount) - ND_PRINT((ndo, " [%un]", nscount)); + ND_PRINT(" [%un]", nscount); if (arcount) - ND_PRINT((ndo, " [%uau]", arcount)); + ND_PRINT(" [%uau]", arcount); cp = (const u_char *)(np + 1); if (qdcount) { @@ -734,7 +735,7 @@ domain_print(netdissect_options *ndo, goto trunc; ancount--; while (cp < ndo->ndo_snapend && ancount) { - ND_PRINT((ndo, ",")); + ND_PRINT(","); if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL) goto trunc; ancount--; @@ -743,12 +744,12 @@ domain_print(netdissect_options *ndo, if (ancount) goto trunc; if (cp < ndo->ndo_snapend && nscount) { - ND_PRINT((ndo, " ns:")); + ND_PRINT(" ns:"); if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL) goto trunc; nscount--; while (cp < ndo->ndo_snapend && nscount) { - ND_PRINT((ndo, ",")); + ND_PRINT(","); if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL) goto trunc; nscount--; @@ -757,12 +758,12 @@ domain_print(netdissect_options *ndo, if (nscount > 0) goto trunc; if (cp < ndo->ndo_snapend && arcount) { - ND_PRINT((ndo, " ar:")); + ND_PRINT(" ar:"); if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL) goto trunc; arcount--; while (cp < ndo->ndo_snapend && arcount) { - ND_PRINT((ndo, ",")); + ND_PRINT(","); if ((cp = ns_rprint(ndo, cp, bp, is_mdns)) == NULL) goto trunc; arcount--; @@ -772,9 +773,9 @@ domain_print(netdissect_options *ndo, goto trunc; } } - ND_PRINT((ndo, " (%d)", length)); + ND_PRINT(" (%u)", length); return; trunc: - ND_PRINT((ndo, "[|domain]")); + nd_print_trunc(ndo); }