genreport.c 95.2 KB
Newer Older
Mark Andrews's avatar
Mark Andrews committed
1
/*
Mark Andrews's avatar
Mark Andrews committed
2
 * Copyright (C) 2016, 2017  Internet Systems Consortium, Inc. ("ISC")
Mark Andrews's avatar
Mark Andrews committed
3 4 5 6 7 8
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

9 10
#define FD_SETSIZE 1600

Mark Andrews's avatar
Mark Andrews committed
11 12 13
#ifndef _BSD_SOURCE
#define _BSD_SOURCE 1
#endif
14

Mark Andrews's avatar
Mark Andrews committed
15
#include <config.h>
Mark Andrews's avatar
Mark Andrews committed
16

Mark Andrews's avatar
Mark Andrews committed
17
#include <stdio.h>
Mark Andrews's avatar
Mark Andrews committed
18 19
#include <string.h>
#include <stdlib.h>
20
#include <stddef.h>
Mark Andrews's avatar
Mark Andrews committed
21
#include <unistd.h>
Mark Andrews's avatar
Mark Andrews committed
22
#include <assert.h>
23
#include <ctype.h>
Mark Andrews's avatar
Mark Andrews committed
24

Mark Andrews's avatar
Mark Andrews committed
25 26 27 28 29 30 31
#include <sys/types.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <sys/select.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <sys/time.h>
32 33
#include <sys/ioctl.h>
#include <sys/uio.h>
34 35 36 37 38 39
#include <netinet/ip.h>
#include <netinet/ip_icmp.h>
#include <netinet/ip6.h>
#include <netinet/icmp6.h>
#include <netinet/udp.h>
#include <netinet/tcp.h>
Mark Andrews's avatar
Mark Andrews committed
40 41

#include <errno.h>
42
#include <netdb.h>
Mark Andrews's avatar
Mark Andrews committed
43
#include <resolv.h>
44
#include <signal.h>
Mark Andrews's avatar
Mark Andrews committed
45

Mark Andrews's avatar
Mark Andrews committed
46 47
#include <openssl/hmac.h>

Mark Andrews's avatar
Mark Andrews committed
48 49 50 51 52 53
#if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
#define HMAC_CTX_new() &(_ctx), HMAC_CTX_init(&_ctx)
#define HMAC_CTX_free(ptr) HMAC_CTX_cleanup(ptr)
#endif


54 55 56 57
#ifndef FD_COPY
#define FD_COPY(x, y) memmove(y, x, sizeof(*x))
#endif

Mark Andrews's avatar
Mark Andrews committed
58 59 60 61 62 63
#define ns_t_dname 39
#define ns_t_sink 40
#define ns_t_apl 42
#define ns_t_ds 43
#define ns_t_sshfp 44
#define ns_t_ipseckey 45
64
#define ns_t_rrsig 46
Mark Andrews's avatar
Mark Andrews committed
65
#define ns_t_nsec 47
Mark Andrews's avatar
Mark Andrews committed
66
#define ns_t_dnskey 48
Mark Andrews's avatar
Mark Andrews committed
67 68 69 70
#define ns_t_dhcid 49
#define ns_t_nsec3 50
#define ns_t_nsec3param 51
#define ns_t_tlsa 52
71
#define ns_t_smimea 53
Mark Andrews's avatar
Mark Andrews committed
72 73 74 75 76
#define ns_t_hip 55
#define ns_t_ninfo 56
#define ns_t_talink 58
#define ns_t_cds 59
#define ns_t_cdnskey 60
77
#define ns_t_openpgpkey 61
Mark Andrews's avatar
Mark Andrews committed
78 79 80 81 82 83 84 85 86 87
#define ns_t_csync 62
#define ns_t_spf 99
#define ns_t_nid 104
#define ns_t_l32 105
#define ns_t_l34 106
#define ns_t_lp 107
#define ns_t_eui48 108
#define ns_t_eui64 109
#define ns_t_uri 256
#define ns_t_caa 257
88 89
#define ns_t_avc 258
#define ns_t_doa 259
Mark Andrews's avatar
Mark Andrews committed
90 91
#define ns_t_ta 32768
#define ns_t_dlv 32769
Mark Andrews's avatar
Mark Andrews committed
92

93 94
#define ns_r_badcookie 23

95
static int eof = 0;
Mark Andrews's avatar
Mark Andrews committed
96 97
static int maxfd = -1;
static fd_set rfds, wfds;
Mark Andrews's avatar
Mark Andrews committed
98
static int outstanding = 0;
99
static int maxoutstanding = 100;
Mark Andrews's avatar
Mark Andrews committed
100 101 102 103 104 105

static void(*rhandlers[FD_SETSIZE])(int);
static void(*whandlers[FD_SETSIZE])(int);

static int udp4 = -1;
static int udp6 = -1;
106 107
static int icmp4 = -1;
static int icmp6 = -1;
108

Mark Andrews's avatar
Mark Andrews committed
109 110 111
static int ipv4only = 0;
static int ipv6only = 0;

Mark Andrews's avatar
Mark Andrews committed
112
static int allok  = 0;
113
static int bad  = 0;
Mark Andrews's avatar
fixups  
Mark Andrews committed
114
static int badtag  = 0;
115
static int ednsonly  = 0;
116
static int debug = 0;
Mark Andrews's avatar
Mark Andrews committed
117
static int inorder = 0;
118
static int serial = 0;
119
static int printnsid = 0;
120
static long long sent;
121

122 123

#ifdef HAVE_RES_GETSERVERS
124
static union res_sockaddr_union servers[10];
125 126 127 128 129 130 131
#else
static union {
        struct sockaddr_in sin;
        struct sockaddr_in6 sin6;
} servers[10];
#endif

132
static int nservers = 0;
133
int ident = 0;
Mark Andrews's avatar
Mark Andrews committed
134

Mark Andrews's avatar
Mark Andrews committed
135 136 137
/*
 * Doubly linked list macros.
 */
Mark Andrews's avatar
Mark Andrews committed
138 139 140 141 142 143 144 145
#define APPEND(list, item, link) do { \
	if ((list).tail) \
		(list).tail->link.next = (item); \
	else \
		(list).head = (item); \
	(item)->link.prev = list.tail; \
	(item)->link.next = NULL; \
	(list).tail = (item); \
Mark Andrews's avatar
Mark Andrews committed
146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168
	(item)->link.linked = 1; \
} while (0)

#define PREPEND(list, item, link) do { \
	if ((list).head) \
		(list).head->link.prev = (item); \
	else \
		(list).tail = (item); \
	(item)->link.prev = NULL; \
	(item)->link.next = list.head; \
	(list).head = (item); \
	(item)->link.linked = 1; \
} while (0)

#define INSERTBEFORE(list, before, item, link) do { \
	assert(LINKED(before, link)); \
	if ((before)->link.prev == NULL) \
		PREPEND(list, item, link); \
	else { \
		(item)->link.prev = (before)->link.prev; \
		(before)->link.prev = (item); \
		(item)->link.prev->link.next = (item); \
		(item)->link.next = (before); \
Mark Andrews's avatar
Mark Andrews committed
169
		(item)->link.linked = 1; \
Mark Andrews's avatar
Mark Andrews committed
170
	} \
Mark Andrews's avatar
Mark Andrews committed
171 172 173 174 175 176 177 178 179 180 181 182
} while (0)

#define UNLINK(list, item, link) do { \
	if ((item)->link.next) \
		(item)->link.next->link.prev = (item)->link.prev; \
	else \
		list.tail = (item)->link.prev; \
	if ((item)->link.prev) \
		(item)->link.prev->link.next = (item)->link.next; \
	else \
		list.head = (item)->link.next; \
	(item)->link.next = (item)->link.prev = NULL; \
183
	(item)->link.linked = 0; \
Mark Andrews's avatar
Mark Andrews committed
184 185 186
} while (0)

#define NEXT(item, link) (item)->link.next
Mark Andrews's avatar
Mark Andrews committed
187
#define PREV(item, link) (item)->link.prev
188
#define LINKED(item, link) (item)->link.linked
Mark Andrews's avatar
Mark Andrews committed
189 190 191 192

#define HEAD(list) (list).head
#define TAIL(list) (list).tail

Mark Andrews's avatar
Mark Andrews committed
193 194 195
#define	HMACSHA256W "\013hmac-sha256"	/* cannonical form */
#define	HMACSHA256  "hmac-sha256"	/* presentation form */

Mark Andrews's avatar
Mark Andrews committed
196 197 198
/*
 * Test groupings
 */
Mark Andrews's avatar
Mark Andrews committed
199
#define NONE 0x00
Mark Andrews's avatar
Mark Andrews committed
200 201 202 203 204 205 206
#define EDNS 0x01
#define COMM 0x02
#define FULL 0x04
#define TYPE 0x08
#define EXPL 0x10

static int what = EDNS;
207

Mark Andrews's avatar
Mark Andrews committed
208
static struct {
Mark Andrews's avatar
Mark Andrews committed
209 210 211 212 213 214 215 216
	const char *name;		/* test nmemonic */
	unsigned int what;		/* select what test to make / report */
	unsigned short rdlen;		/* edns rdata length */
	const char *rdata;		/* edns rdata */
	unsigned short udpsize;		/* edns UDP size (0 == no EDNS) */
	unsigned short flags;		/* edns flags to be set */
	unsigned short version;		/* edns version */
	unsigned int tcp;		/* use tcp */
217
	unsigned int cookie;		/* opt record has cookie */
Mark Andrews's avatar
Mark Andrews committed
218 219 220 221 222 223 224 225 226 227
	unsigned int ignore;		/* ignore tc in response */
	unsigned int tc;		/* set tc in request */
	unsigned int rd;		/* set rd in request */
	unsigned int ra;		/* set ra in request */
	unsigned int cd;		/* set cd in request */
	unsigned int ad;		/* set ad  in request */
	unsigned int aa;		/* set aa in request */
	unsigned int z;			/* set z in request */
	unsigned int opcode;		/* use opcode for request */
	unsigned short type;		/* query type code */
Mark Andrews's avatar
Mark Andrews committed
228
	const char *dig;		/* dig command */
229
} opts[] = {
230
	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
231 232 233 234 235 236 237
	{ "dns",       EDNS,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +noedns +noad +norec SOA <zone>"
	},
	{ "aa",        FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0,  0, ns_t_soa,
	  "dig +noedns +noad +norec +aaflag SOA <zone>"
	},
	{ "ad",        FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0,  0, ns_t_soa,
Mark Andrews's avatar
Mark Andrews committed
238
	  "dig +noedns +ad +norec SOA <zone>"
Mark Andrews's avatar
Mark Andrews committed
239 240 241 242 243
	},
	{ "cd",        FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0,  0, ns_t_soa,
	  "dig +noedns +noad +norec +cd SOA <zone>"
	},
	{ "ra",        FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0,  0, ns_t_soa,
244
	  "### dig +noedns +noad +norec +raflag SOA <zone> ###"
Mark Andrews's avatar
Mark Andrews committed
245 246 247 248 249
	},
	{ "rd",        FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +noedns +noad +rec SOA <zone>"
	},
	{ "tc",        FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
250
	  "### dig +noedns +noad +norec +tcflag SOA <zone> ###"
Mark Andrews's avatar
Mark Andrews committed
251 252 253 254 255 256 257 258
	},
	{ "zflag",     FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1,  0, ns_t_soa,
	  "dig +noedns +noad +norec +zflag SOA <zone>"
	},
	{ "opcode",    FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 0,
	  "dig +noedns +noad +norec +header-only +opcode=15"
	},
	{ "opcodeflg", FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 15, 0,
259
	  "### dig +noedns +header-only +opcode=15 +tcflag +rec +raflag +cd +ad +aaflag +zflag ###"
Mark Andrews's avatar
Mark Andrews committed
260 261 262 263 264 265 266
	},
	{ "type666",   FULL,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, 666,
	  "dig +noedns +noad +norec TYPE666 <zone>"
	},
	{ "tcp",       FULL,  0, "",    0, 0x0000, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +noedns +noad +norec +tcp SOA <zone>"
	},
267 268

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
269 270 271 272 273 274 275 276 277
	{ "edns",      EDNS,  0, "", 4096, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec SOA <zone>"
	},
	{ "edns1",     EDNS,  0, "", 4096, 0x0000, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +nocookie +noad +norec SOA <zone>"
	},
	{ "edns@512",  EDNS,  0, "",  512, 0x0000, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_dnskey,
	  "dig +edns=0 +nocookie +noad +norec +dnssec +ignoretc +bufsize=512 DNSKEY <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
278
	{ "ednsopt",   EDNS,  4, "\x00\x64\x00\x00",	/* 100 */
Mark Andrews's avatar
Mark Andrews committed
279 280 281
				     4096, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +ednsopt=100 SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
282
	{ "edns1opt",  EDNS,  4, "\x00\x64\x00\x00",	/* 100 */
Mark Andrews's avatar
Mark Andrews committed
283 284 285
				     4096, 0x0000, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +nocookie +noad +norec +ednsopt=100 SOA <zone>"
	},
286
	{ "do",        EDNS,  0, "",
Mark Andrews's avatar
Mark Andrews committed
287 288 289
				     4096, 0x8000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +dnssec SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
290 291 292 293
	{ "docd",      FULL,  0, "",
				     4096, 0x8000, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +dnssec SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
294 295 296 297 298 299
	{ "edns1do",   FULL,  0, "", 4096, 0x8000, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +nocookie +noad +norec +dnssec SOA <zone>"
	},
	{ "ednsflags", EDNS,  0, "", 4096, 0x0080, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +ednsflags=0x0080 SOA <zone>"
	},
300
	{ "optlist",   EDNS,  4 + 8 + 4 + 12,
301 302 303 304
	  "\x00\x03\x00\x00" 		     /* NSID */
	  "\x00\x08\x00\x04\x00\x01\x00\x00" /* ECS */
	  "\x00\x09\x00\x00" 		     /* EXPIRE */
	  "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08",	/* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
305 306 307
				     4096, 0x0000, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +noad +norec +nsid +subnet=0.0.0.0/0 +expire +cookie=0102030405060708 SOA <zone>"
	},
308 309

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
310
	{ "ednsnsid", FULL,  4, "\x00\x03\x00\x00",	/* NSID */
Mark Andrews's avatar
Mark Andrews committed
311 312 313
				     4096, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +nsid SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
314
	{ "ednscookie", FULL, 12, "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08", /* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
315 316 317
				     4096, 0x0000, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +noad +norec +cookie=0102030405060708 SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
318
	{ "ednsexpire", FULL, 4, "\x00\x09\x00\x00",	/* EXPIRE */
Mark Andrews's avatar
Mark Andrews committed
319 320 321
				     4096, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +expire SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
322
	{ "ednssubnet", FULL,  8, "\x00\x08\x00\x04\x00\x01\x00\x00",	/* ECS */
Mark Andrews's avatar
Mark Andrews committed
323 324 325 326
				     4096, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +nocookie +noad +norec +subnet=0.0.0.0/0 SOA <zone>"
	},

Mark Andrews's avatar
Mark Andrews committed
327
	{ "edns1nsid", FULL,  4, "\x00\x03\x00\x00",	/* NSID */
Mark Andrews's avatar
Mark Andrews committed
328 329 330
				     4096, 0x0000, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +nocookie +noad +norec +nsid SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
331
	{ "edns1cookie", FULL, 12, "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08", /* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
332 333 334
				     4096, 0x0000, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +noad +norec +cookie=0102030405060708 SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
335
	{ "edns1expire", FULL, 4, "\x00\x09\x00\x00",	/* EXPIRE */
Mark Andrews's avatar
Mark Andrews committed
336 337 338
				     4096, 0x0000, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +nocookie +noad +norec +expire SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
339
	{ "edns1subnet", FULL,  8, "\x00\x08\x00\x04\x00\x01\x00\x00",	/* ECS */
Mark Andrews's avatar
Mark Andrews committed
340 341 342 343 344 345
				     4096, 0x0000, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=1 +noednsneg +nocookie +noad +norec +subnet=0.0.0.0/0 SOA <zone>"
	},
	{ "ednstcp",   EDNS,  0, "",  512, 0x8000, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_dnskey,
	  "dig +edns=0 +nocookie +noad +norec +dnssec +bufsize=512 +tcp DNSKEY <zone>"
	},
346 347

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
348
	{ "bind11",    COMM, 12, "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08", /* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
349 350 351
				     4096, 0x8000, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +cookie=0102030405060708 +noad +norec +dnssec SOA <zone>"
	},
Mark Andrews's avatar
Mark Andrews committed
352
	{ "dig11",     COMM, 12, "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08", /* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
353 354 355
				     4096, 0x0000, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0,  0, ns_t_soa,
	  "dig +edns=0 +cookie=0102030405060708 +ad +rec SOA <zone>"
	},
356

Mark Andrews's avatar
Mark Andrews committed
357 358 359 360
	{ "dnswkk",     NONE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +noedns +noad +norec -y hmac-sha256:.:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA= SOA <zone>"
	},

361
	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403
	{ "A",         TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_a,
	  "dig +noedns +noad +norec A <zone>"
	},
	{ "NS",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_ns,
	  "dig +noedns +noad +norec NS <zone>"
	},
	{ "MD",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_md,
	  "dig +noedns +noad +norec MD <zone>"
	},
	{ "MF",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_mf,
	  "dig +noedns +noad +norec MF <zone>"
	},
	{ "CNAME",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_cname,
	  "dig +noedns +noad +norec CNAME <zone>"
	},
	{ "SOA",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_soa,
	  "dig +noedns +noad +norec SOA <zone>"
	},
	{ "MB",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_mb,
	  "dig +noedns +noad +norec MB <zone>"
	},
	{ "MG",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_mg,
	  "dig +noedns +noad +norec MG <zone>"
	},
	{ "MR",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_mr,
	  "dig +noedns +noad +norec MR <zone>"
	},
	{ "NULL",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_null,
	  "dig +noedns +noad +norec NULL <zone>"
	},
	{ "WKS",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_wks,
	  "dig +noedns +noad +norec WKS <zone>"
	},
	{ "PTR",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_ptr,
	  "dig +noedns +noad +norec PTR <zone>"
	},
	{ "HINFO",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_hinfo,
	  "dig +noedns +noad +norec HINFO <zone>"
	},
	{ "MINFO",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_minfo,
	  "dig +noedns +noad +norec MINFO <zone>"
	},
404 405

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450
	{ "MX",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_mx,
	  "dig +noedns +noad +norec MX <zone>"
	},
	{ "TXT",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_txt,
	  "dig +noedns +noad +norec TXT <zone>"
	},
	{ "RP",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_rp,
	  "dig +noedns +noad +norec RP <zone>"
	},
	{ "AFSDB",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_afsdb,
	  "dig +noedns +noad +norec AFSDB <zone>"
	},
	{ "X25",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_x25,
	  "dig +noedns +noad +norec X25 <zone>"
	},
	{ "ISDN",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_isdn,
	  "dig +noedns +noad +norec ISDN <zone>"
	},
	{ "RT",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_rt,
	  "dig +noedns +noad +norec RT <zone>"
	},
	{ "NSAP",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nsap,
	  "dig +noedns +noad +norec NSAP <zone>"
	},
	{ "NSAP-PTR",  TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nsap_ptr,
	  "dig +noedns +noad +norec NSAP-PTR <zone>"
	},
	{ "SIG",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_sig,
	  "dig +noedns +noad +norec SIG <zone>"
	},
	{ "KEY",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_key,
	  "dig +noedns +noad +norec KEY <zone>"
	},
	{ "PX",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_px,
	  "dig +noedns +noad +norec PX <zone>"
	},
	{ "GPOS",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_gpos,
	  "dig +noedns +noad +norec GPOS <zone>"
	},
	{ "AAAA",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_aaaa,
	  "dig +noedns +noad +norec AAAA <zone>"
	},
	{ "LOC",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_loc,
	  "dig +noedns +noad +norec LOC <zone>"
	},
451 452

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491
	{ "NXT",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nxt,
	  "dig +noedns +noad +norec NXT <zone>"
	},
	{ "SRV",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_srv,
	  "dig +noedns +noad +norec SRV <zone>"
	},
	{ "NAPTR",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_naptr,
	  "dig +noedns +noad +norec NAPTR <zone>"
	},
	{ "KX",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_kx,
	  "dig +noedns +noad +norec KX <zone>"
	},
	{ "CERT",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_cert,
	  "dig +noedns +noad +norec CERT <zone>"
	},
	{ "A6",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_a6,
	  "dig +noedns +noad +norec A6 <zone>"
	},
	{ "DNAME",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_dname,
	  "dig +noedns +noad +norec DNAME <zone>"
	},
	{ "APL",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_apl,
	  "dig +noedns +noad +norec APL <zone>"
	},
	{ "DS",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_ds,
	  "dig +noedns +noad +norec DS <zone>"
	},
	{ "SSHFP",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_sshfp,
	  "dig +noedns +noad +norec SSHFP <zone>"
	},
	{ "IPSECKEY",  TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_ipseckey,
	  "dig +noedns +noad +norec IPSECKEY <zone>"
	},
	{ "RRSIG",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_rrsig,
	  "dig +noedns +noad +norec RRSIG <zone>"
	},
	{ "NSEC",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nsec,
	  "dig +noedns +noad +norec NSEC <zone>"
	},
492 493

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532
	{ "DNSKEY",    TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_dnskey,
	  "dig +noedns +noad +norec DNSKEY <zone>"
	},
	{ "DHCID",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_dhcid,
	  "dig +noedns +noad +norec DHCID <zone>"
	},
	{ "NSEC3",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nsec3,
	  "dig +noedns +noad +norec NSEC3 <zone>"
	},
	{ "NSEC3PARAM",TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nsec3param,
	  "dig +noedns +noad +norec NSEC3PARAM <zone>"
	},
	{ "TLSA",      TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_tlsa,
	  "dig +noedns +noad +norec TLSA <zone>"
	},
	{ "SMIMEA",    TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_smimea,
	  "dig +noedns +noad +norec SMIMEA <zone>"
	},
	{ "HIP",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_hip,
	  "dig +noedns +noad +norec HIP <zone>"
	},
	{ "CDS",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_cds,
	  "dig +noedns +noad +norec CDS <zone>"
	},
	{ "CDNSKEY",   TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_cdnskey,
	  "dig +noedns +noad +norec CDNSKEY <zone>"
	},
	{ "OPENPGPKEY",TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_openpgpkey,
	  "dig +noedns +noad +norec OPENPGPKEY <zone>"
	},
	{ "SPF",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_spf,
	  "dig +noedns +noad +norec SPF <zone>"
	},
	{ "NID",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_nid,
	  "dig +noedns +noad +norec NID <zone>"
	},
	{ "L32",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_l32,
	  "dig +noedns +noad +norec L32 <zone>"
	},
533 534

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564
	{ "L64",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_l34,
	  "dig +noedns +noad +norec L64 <zone>"
	},
	{ "LP",        TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_lp,
	  "dig +noedns +noad +norec LP <zone>"
	},
	{ "EUI48",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_eui48,
	  "dig +noedns +noad +norec EUI48 <zone>"
	},
	{ "EUI64",     TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_eui64,
	  "dig +noedns +noad +norec EUI64 <zone>"
	},
	{ "URI",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_uri,
	  "dig +noedns +noad +norec URI <zone>"
	},
	{ "CAA",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_caa,
	  "dig +noedns +noad +norec CAA <zone>"
	},
	{ "AVC",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_avc,
	  "dig +noedns +noad +norec AVC <zone>"
	},
	{ "DOA",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_doa,
	  "dig +noedns +noad +norec DOA <zone>"
	},
	{ "DLV",       TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, ns_t_dlv,
	  "dig +noedns +noad +norec DLV <zone>"
	},
	{ "TYPE1000",  TYPE,  0, "",    0, 0x0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0, 1000,
	  "dig +noedns +noad +norec TYPE1000 <zone>"
	}
565 566
};

Mark Andrews's avatar
Mark Andrews committed
567 568 569
/*
 * Summary structure where results from multiple lookups are recorded.
 */
570
struct summary {
Mark Andrews's avatar
Mark Andrews committed
571 572 573 574 575
	struct {
		struct summary *prev;
		struct summary *next;
		int linked;
	} link;
Mark Andrews's avatar
Mark Andrews committed
576 577 578
	char zone[1024];		/* the zone's name */
	char ns[1024];			/* the server's name */
	struct sockaddr_storage storage;/* server we are talking to */
Mark Andrews's avatar
Mark Andrews committed
579
	int tests;			/* number of outstanding tests */
Mark Andrews's avatar
Mark Andrews committed
580
	unsigned int last;		/* last test sent */
Mark Andrews's avatar
Mark Andrews committed
581
	int deferred;			/* was the printing deferred */
Mark Andrews's avatar
Mark Andrews committed
582
	int done;			/* we are done */
Mark Andrews's avatar
Mark Andrews committed
583
	int type;			/* recursive query lookup type */
584
	int nodata;			/* recursive query got nodata */
Mark Andrews's avatar
Mark Andrews committed
585 586 587 588 589
	int nodataa;			/* recursive query got nodata */
	int nodataaaaa;			/* recursive query got nodata */
	int nxdomain;			/* recursive query got nxdomain */
	int nxdomaina;			/* recursive query got nxdomain */
	int nxdomainaaaa;		/* recursive query got nxdomain */
590 591
	int faileda;
	int failedaaaa;
Mark Andrews's avatar
Mark Andrews committed
592
	int cname;			/* NS is CNAME */
593 594
	int cnamea;			/* Nameserver is CNAME */
	int cnameaaaa;			/* Nameserver is CNAME */
Mark Andrews's avatar
Mark Andrews committed
595
	int seenrrsig;			/* a rrsig was seen in "do" test */
596 597 598 599 600 601
	int seenopt;			/* see a EDNS response */
	int seenedns;			/* see a EDNS response */
	int seenfailure;		/* see a lookup failure */
	int allok;			/* all answers are current ok */
	int allrefused;			/* all answers are current ok */
	int allservfail;		/* all answers are current ok */
Mark Andrews's avatar
Mark Andrews committed
602
	struct summary *xlink;		/* cross link of recursive A/AAAA */
Mark Andrews's avatar
Mark Andrews committed
603
	unsigned int nsidlen;
604
	char nsid[100];			/* nsid if found */
605 606 607
	char results[sizeof(opts)/sizeof(opts[0])][100];
};

Mark Andrews's avatar
Mark Andrews committed
608 609 610 611 612
static struct {
	struct summary *head;
	struct summary *tail;
} summaries;

Mark Andrews's avatar
Mark Andrews committed
613 614 615 616
struct workitem {
	struct {
		struct workitem *next;
		struct workitem *prev;
617
		int linked;
618
	} link, clink, plink, rlink, idlink, seqlink;
Mark Andrews's avatar
Mark Andrews committed
619 620 621
	unsigned short id;		/* the query id we are waiting for */
	struct timeval when;		/* when we will timeout */
	int type;			/* the query type being looked up */
Mark Andrews's avatar
Mark Andrews committed
622 623 624
	int test;			/* test number / server number */
	int sends;			/* number of times this UDP request
					 * has been sent */
Mark Andrews's avatar
Mark Andrews committed
625 626
	int buflen;			/* the size of the request to be sent */
	int tcpfd;			/* the tcp file descriptor */
Mark Andrews's avatar
Mark Andrews committed
627 628
	int outstanding;		/* outstanding has been set */
	int havelen;			/* readlen is tcp message length */
Mark Andrews's avatar
Mark Andrews committed
629 630 631 632
	int readlen;			/* how much we need to read */
	int read;			/* how much has been read so far */
	unsigned char buf[512];		/* the question we sent */
	unsigned char tcpbuf[0x10000];	/* where to accumulate the tcp response */
Mark Andrews's avatar
Mark Andrews committed
633
	unsigned char mac[32];		/* tsig hmac-sha256 mac */
Mark Andrews's avatar
Mark Andrews committed
634
	struct summary *summary;	/* where this test is summaried */
Mark Andrews's avatar
Mark Andrews committed
635 636
};

637
/*
Mark Andrews's avatar
Mark Andrews committed
638
 * Work queues:
639 640 641
 *	'work' udp qeries;
 *	'connecting' tcp qeries;
 *	'reading' tcp qeries;
Mark Andrews's avatar
Mark Andrews committed
642
 *	'pending' deferred work items;
Mark Andrews's avatar
Mark Andrews committed
643 644 645
 *
 * Outstanding queries by qid.
 *	'ids'
646 647 648
 *
 * Outstanding icmp by seq.
 *	'ids'
649
 */
Mark Andrews's avatar
Mark Andrews committed
650 651 652
static struct {
	struct workitem *head;
	struct workitem *tail;
653
} work, connecting, reading, pending, ids[0x10000], seq[0x10000];
Mark Andrews's avatar
Mark Andrews committed
654

Mark Andrews's avatar
Mark Andrews committed
655 656 657
static void
dotest(struct workitem *item);

658 659 660
static void
nextserver(struct workitem *item);

661 662
static void
connecttoserver(struct workitem *item);
Mark Andrews's avatar
Mark Andrews committed
663

Mark Andrews's avatar
Mark Andrews committed
664 665 666
static void
report(struct summary *summary);

Mark Andrews's avatar
Mark Andrews committed
667 668 669 670 671
static int
storage_equal(struct sockaddr_storage *s1, struct sockaddr_storage *s2) {
	struct sockaddr_in *sin1, *sin2;
	struct sockaddr_in6 *sin61, *sin62;

672
	if (s1->ss_family != s2->ss_family)
Mark Andrews's avatar
Mark Andrews committed
673 674 675 676 677 678
		return (0);

	switch (s1->ss_family) {
	case AF_INET:
		sin1 = (struct sockaddr_in *)s1;
		sin2 = (struct sockaddr_in *)s2;
Mark Andrews's avatar
Mark Andrews committed
679

Mark Andrews's avatar
Mark Andrews committed
680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695
		if (sin1->sin_port != sin2->sin_port ||
		    sin1->sin_addr.s_addr != sin2->sin_addr.s_addr)
			return (0);
		return (1);
	case AF_INET6:
		sin61 = (struct sockaddr_in6 *)s1;
		sin62 = (struct sockaddr_in6 *)s2;

		if (sin61->sin6_port != sin62->sin6_port ||
		    memcmp(&sin61->sin6_addr, &sin62->sin6_addr, 16) != 0)
			return (0);
		return (1);
	}
	return (0);
}

Mark Andrews's avatar
Mark Andrews committed
696 697 698
/*
 * Check if it is safe to use this id to this address.
 */
Mark Andrews's avatar
Mark Andrews committed
699 700 701 702 703 704
static int
checkid(struct sockaddr_storage *storage, int id) {
	struct workitem *item;

	item = HEAD(ids[id]);
	while (item != NULL &&
705
	       !storage_equal(storage, &item->summary->storage))
Mark Andrews's avatar
Mark Andrews committed
706 707 708 709
		item = NEXT(item, idlink);
	return ((item == NULL) ? 1 : 0);
}

710 711 712 713 714 715 716 717 718 719 720 721 722 723 724
/*
 * Check if we have a outstanding icmp with this sequence number
 * to this address.
 */
static int
checkseq(struct sockaddr_storage *storage, int id) {
	struct workitem *item;

	item = HEAD(seq[id]);
	while (item != NULL &&
	       !storage_equal(storage, &item->summary->storage))
		item = NEXT(item, seqlink);
	return ((item == NULL) ? 1 : 0);
}

Mark Andrews's avatar
Mark Andrews committed
725 726 727 728 729 730 731
static void
freesummary(struct summary *summary) {
	if (LINKED(summary, link))
		UNLINK(summaries, summary, link);
	free(summary);
}

Mark Andrews's avatar
Mark Andrews committed
732 733 734
/*
 * Generate a report line.
 */
735
static void
Mark Andrews's avatar
Mark Andrews committed
736
printandfree(struct summary *summary) {
737 738 739 740 741 742 743 744
	struct sockaddr_in *s = (struct sockaddr_in *)&summary->storage;
	struct sockaddr_in6 *s6 = (struct sockaddr_in6 *)&summary->storage;;
	char addrbuf[64];
	void *addr;
	unsigned int i;
	int x;

	if ((summary->type == ns_t_a || summary->type == ns_t_aaaa) &&
Mark Andrews's avatar
Mark Andrews committed
745
	    summary->nodataa && summary->nodataaaaa) {
746 747
		printf("%s. %s: no address records found\n",
		       summary->zone, summary->ns);
Mark Andrews's avatar
Mark Andrews committed
748
		freesummary(summary);
749 750
		return;
	}
751

752 753 754 755
	if ((summary->type == ns_t_a || summary->type == ns_t_aaaa) &&
	    summary->nxdomaina && summary->nxdomainaaaa) {
		printf("%s. %s: no address records found (NXDOMAIN)\n",
		       summary->zone, summary->ns);
Mark Andrews's avatar
Mark Andrews committed
756
		freesummary(summary);
757 758
		return;
	}
759

760 761 762 763 764 765 766 767
	if ((summary->type == ns_t_a || summary->type == ns_t_aaaa) &&
	    summary->faileda && summary->failedaaaa) {
		printf("%s. %s: address lookups failed\n",
		       summary->zone, summary->ns);
		freesummary(summary);
		return;
	}

768 769 770 771 772 773 774 775
	if ((summary->type == ns_t_a || summary->type == ns_t_aaaa) &&
	    (summary->cnamea || summary->cnameaaaa)) {
		printf("%s. %s: nameserver is a CNAME\n",
		       summary->zone, summary->ns);
		freesummary(summary);
		return;
	}

Mark Andrews's avatar
Mark Andrews committed
776 777 778 779 780 781
	if ((summary->type == ns_t_ns) && summary->cname) {
		printf("%s.: zone is a CNAME\n", summary->zone);
		freesummary(summary);
		return;
	}

782 783 784
	/*
	 * Do deferred xlink failure reports.
	 */
785 786
	if (summary->type == ns_t_a &&
	    summary->nodataa && summary->failedaaaa) {
787 788 789 790 791
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" AAAAA lookup failed\n");
		freesummary(summary);
		return;
	}
792 793
	if (summary->type == ns_t_aaaa &&
	    summary->nodataaaaa && summary->faileda) {
794 795 796 797 798
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" A lookup failed\n");
		freesummary(summary);
		return;
	}
799 800
	if (summary->type == ns_t_a &&
	    summary->faileda && summary->nxdomainaaaa) {
801 802 803 804 805
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" AAAAA nxdomain\n");
		freesummary(summary);
		return;
	}
806 807
	if (summary->type == ns_t_aaaa &&
	    summary->failedaaaa && summary->nxdomaina) {
808 809 810 811 812
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" A nxdomain\n");
		freesummary(summary);
		return;
	}
813 814 815 816 817 818
	if (summary->type == ns_t_ns && summary->nodata) {
		printf("%s.:", summary->zone);
		printf(" no NS records found\n");
		freesummary(summary);
		return;
	}
819

Mark Andrews's avatar
Mark Andrews committed
820
	if (summary->done || summary->nodataa || summary->nodataaaaa) {
Mark Andrews's avatar
Mark Andrews committed
821
		freesummary(summary);
822 823
		return;
	}
Mark Andrews's avatar
Mark Andrews committed
824

825 826 827
	if (summary->type != 0 && summary->nxdomain) {
		if (summary->type == ns_t_ns) {
			printf("%s.: NS nxdomain\n", summary->zone);
Mark Andrews's avatar
Mark Andrews committed
828
			freesummary(summary);
829 830 831 832 833 834
			return;
		}
		printf("%s. %s:", summary->zone, summary->ns);
		if (summary->type == ns_t_a) printf(" A");
		if (summary->type == ns_t_aaaa) printf(" AAAA");
		printf(" nxdomain\n");
Mark Andrews's avatar
Mark Andrews committed
835
		freesummary(summary);
836 837 838 839 840
		return;
	}
	if (summary->type == ns_t_a) {
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" A lookup failed\n");
Mark Andrews's avatar
Mark Andrews committed
841
		freesummary(summary);
842 843 844 845 846
		return;
	}
	if (summary->type == ns_t_aaaa) {
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" AAAA lookup failed\n");
Mark Andrews's avatar
Mark Andrews committed
847
		freesummary(summary);
848 849 850
		return;
	}
	if (summary->type == ns_t_ns) {
Mark Andrews's avatar
Mark Andrews committed
851
		printf("%s.:", summary->zone);
852
		printf(" NS lookup failed\n");
Mark Andrews's avatar
Mark Andrews committed
853
		freesummary(summary);
854 855
		return;
	}
856

857 858 859 860 861
	if (summary->seenopt && (summary->allrefused && summary->allservfail))
		summary->seenedns = 1;

	if (summary->type != 0 || (summary->allok && bad) ||
	    (!summary->seenfailure && !summary->seenedns && ednsonly)) {
Mark Andrews's avatar
Mark Andrews committed
862
		freesummary(summary);
Mark Andrews's avatar
Mark Andrews committed
863 864 865
		return;
	}

866 867 868 869 870
	switch (summary->storage.ss_family) {
	case AF_INET: addr = &s->sin_addr; break;
	case AF_INET6: addr = &s6->sin6_addr; break;
	default: addr = NULL; break;
	}
Mark Andrews's avatar
Mark Andrews committed
871

872
	if (addr == NULL)
873
		strncpy(addrbuf, "<unknown>", sizeof(addrbuf));
874 875 876 877
	else
		inet_ntop(summary->storage.ss_family, addr,
			  addrbuf, sizeof(addrbuf));

878 879
	x = -1;
	printf("%s. @%s (%s.):", summary->zone, addrbuf, summary->ns);
Mark Andrews's avatar
Mark Andrews committed
880 881 882 883 884
	if (allok && summary->allok)
		printf(" all ok");
	else
		for (i = 0; i < sizeof(opts)/sizeof(opts[0]); i++) {
			if (opts[i].what != 0 && (opts[i].what & what) == 0)
Mark Andrews's avatar
fixups  
Mark Andrews committed
885
				continue;
Mark Andrews's avatar
Mark Andrews committed
886
			if (summary->results[i][0] == 0)
887
				strncpy(summary->results[i], "skipped", 100);
Mark Andrews's avatar
Mark Andrews committed
888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903
			if (strcmp(opts[i].name, "do") == 0)
				x = i;
			if (strcmp(opts[i].name, "ednstcp") == 0 && x != -1 &&
			    (!badtag || (strcmp(summary->results[x], "ok") != 0 &&
					 strncmp(summary->results[x], "ok,", 3) != 0)))
			{
				printf(" signed=%s", summary->results[x]);
				if (summary->seenrrsig)
					printf(",yes");
			}
			if (badtag) {
				if (strcmp(summary->results[i], "ok") == 0 ||
				    strncmp(summary->results[i], "ok,", 3) == 0)
					continue;
			}
			printf(" %s=%s", opts[i].name, summary->results[i]);
Mark Andrews's avatar
fixups  
Mark Andrews committed
904
		}
Mark Andrews's avatar
Mark Andrews committed
905
	if (printnsid && summary->nsidlen != 0U) {
906 907 908 909 910 911 912 913 914
		printf(" (");
		for (i = 0; i < summary->nsidlen; i++) {
			if (isprint(summary->nsid[i] & 0xff))
				putchar(summary->nsid[i]);
			else
				putchar('.');
		}
		printf(")");
	}
915
	printf("\n");
Mark Andrews's avatar
Mark Andrews committed
916 917 918 919 920 921
	freesummary(summary);
}

static void
report(struct summary *summary) {

Mark Andrews's avatar
Mark Andrews committed
922 923 924 925
	/*
	 * Send the next test now that we have completed the last test.
	 */
	if (serial && summary->type == 0 && summary->tests == 1) {
926 927 928
		for (summary->last++;
		     summary->last < sizeof(opts)/sizeof(opts[0]);
		     summary->last++) {
Mark Andrews's avatar
Mark Andrews committed
929
			struct workitem *item;
930 931
			if (opts[summary->last].what != 0 &&
			    (opts[summary->last].what & what) == 0)
Mark Andrews's avatar
Mark Andrews committed
932 933 934 935 936
				continue;
			item = calloc(1, sizeof(*item));
			if (item == NULL)
				continue;
			item->summary = summary;
937
			item->test = item->summary->last;
938
			item->tcpfd = -1;
Mark Andrews's avatar
Mark Andrews committed
939 940 941 942 943
			dotest(item);
			return;
		}
	}

Mark Andrews's avatar
Mark Andrews committed
944 945 946 947 948 949 950 951 952 953 954 955
	/*
	 * Have all the tests completed?
	 */
	summary->tests--;
	if (summary->tests)
		return;

	/*
	 * If we are cross linked record the lookup details on the other
	 * structure.
	 */
	if (summary->xlink) {
956 957 958 959 960 961 962 963
		if (summary->cnamea) {
			summary->xlink->cnamea = 1;
			summary->done = 1;
		}
		if (summary->cnameaaaa) {
			summary->xlink->cnameaaaa = 1;
			summary->done = 1;
		}
Mark Andrews's avatar
Mark Andrews committed
964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979
		if (summary->nodataa) {
			summary->xlink->nodataa = 1;
			summary->done = 1;
		}
		if (summary->nodataaaaa) {
			summary->xlink->nodataaaaa = 1;
			summary->done = 1;
		}
		if (summary->nxdomaina) {
			summary->xlink->nxdomaina = 1;
			summary->done = 1;
		}
		if (summary->nxdomainaaaa) {
			summary->xlink->nxdomainaaaa = 1;
			summary->done = 1;
		}
980 981 982 983 984 985 986 987 988 989
		if (!summary->done) {
			if (summary->type == ns_t_a) {
				summary->xlink->faileda = 1;
				summary->done = 1;
			}
			if (summary->type == ns_t_aaaa) {
				summary->xlink->failedaaaa = 1;
				summary->done = 1;
			}
		}
Mark Andrews's avatar
Mark Andrews committed
990 991 992 993 994 995 996 997 998 999 1000

		/*
		 * Remove the cross link.
		 */
		summary->xlink->xlink = NULL;
		summary->xlink = NULL;
		if (summary->done) {
			freesummary(summary);
			goto print_deferred;
		}
	}
1001 1002 1003 1004 1005 1006
	if (!summary->done) {
		if (summary->type == ns_t_a)
			summary->faileda = 1;
		if (summary->type == ns_t_aaaa)
			summary->failedaaaa = 1;
	}
Mark Andrews's avatar
Mark Andrews committed
1007 1008 1009 1010 1011 1012 1013 1014 1015 1016

	if (inorder && PREV(summary, link)) {
		summary->deferred = 1;
		return;
	}
	printandfree(summary);

 print_deferred:
	while ((summary = HEAD(summaries)) && summary->deferred)
		printandfree(summary);
1017 1018
}

Mark Andrews's avatar
Mark Andrews committed
1019 1020 1021
/*
 * Free a work item and unlink.
 */
1022 1023
static void
freeitem(struct workitem * item) {
Mark Andrews's avatar
Mark Andrews committed
1024 1025
	if (item->summary)
		report(item->summary);
1026
	if (item->tcpfd != -1) {
1027 1028 1029 1030 1031 1032 1033 1034 1035 1036
		FD_CLR(item->tcpfd, &rfds);
		FD_CLR(item->tcpfd, &wfds);
		rhandlers[item->tcpfd] = NULL;
		whandlers[item->tcpfd] = NULL;
		close(item->tcpfd);
	}
	if (item->outstanding)
		outstanding--;
	if (LINKED(item, link))
		UNLINK(work, item, link);
Mark Andrews's avatar
Mark Andrews committed
1037 1038
	if (LINKED(item, plink))
		UNLINK(pending, item, plink);
1039 1040 1041 1042 1043 1044
	if (LINKED(item, rlink))
		UNLINK(reading, item, rlink);
	if (LINKED(item, clink))
		UNLINK(connecting, item, clink);
	if (LINKED(item, idlink))
		UNLINK(ids[item->id], item, idlink);
1045 1046
	if (LINKED(item, seqlink))
		UNLINK(seq[item->id], item, seqlink);
1047 1048 1049
	free(item);
}

Mark Andrews's avatar
Mark Andrews committed
1050 1051 1052
/*
 * Add a tag to the report.
 */
1053
static void
1054
addtag(struct workitem *item, const char *tag) {
1055
	char *result = item->summary->results[item->test];
1056 1057
	if (result[0]) strncat(result, ",", 100);
	strncat(result, tag, 100);
1058 1059
}

Mark Andrews's avatar
Mark Andrews committed
1060 1061 1062
/*
 * Resend a UDP request.
 */
1063 1064 1065
static void
resend(struct workitem *item) {
	int n, fd = -1;
1066
	socklen_t ss_len;
1067 1068 1069 1070

	switch (item->summary->storage.ss_family) {
	case AF_INET:
		fd = udp4;
1071
		ss_len = sizeof(struct sockaddr_in);
1072 1073 1074
		break;
	case AF_INET6:
		fd = udp6;
1075
		ss_len = sizeof(struct sockaddr_in6);
1076 1077 1078 1079 1080
		break;
	}

	if (fd == -1) {
		addtag(item, "skipped");
1081
		item->summary->allok = 0;
1082 1083 1084 1085
		freeitem(item);
		return;
	}

1086
	if (!item->outstanding && outstanding > maxoutstanding) {
1087 1088
		gettimeofday(&item->when, NULL);
		item->when.tv_sec += 1;
Mark Andrews's avatar
Mark Andrews committed
1089 1090 1091
		if (LINKED(item, link))
			UNLINK(work, item, link);
		APPEND(pending, item, plink);
1092 1093 1094 1095
		return;
	}

	n = sendto(fd, item->buf, item->buflen, 0,
1096
		   (struct sockaddr *)&item->summary->storage, ss_len);
1097 1098 1099 1100 1101 1102 1103 1104
	if (n > 0) {
		if (debug)
			printf("resend %s rdlen=%u udpsize=%u flags=%04x "
			       "version=%u tcp=%u ignore=%u id=%u\n",
			       opts[item->test].name, opts[item->test].rdlen,
			       opts[item->test].udpsize, opts[item->test].flags,
			       opts[item->test].version, opts[item->test].tcp,
			       opts[item->test].ignore, item->id);
1105
		sent++;
1106 1107 1108 1109 1110
		if (!item->outstanding++)
			outstanding++;
		gettimeofday(&item->when, NULL);
		item->when.tv_sec += 1;
		item->sends++;
Mark Andrews's avatar
Mark Andrews committed
1111 1112
		if (LINKED(item, link))
			UNLINK(work, item, link);
1113
		APPEND(work, item, link);
1114 1115
	} else if (item->summary->type) {
		nextserver(item);
1116 1117
	} else {
		addtag(item, "failed");
1118 1119
		item->summary->allok = 0;
		item->summary->seenfailure = 1;
1120 1121 1122 1123
		freeitem(item);
	}
}

Mark Andrews's avatar
Mark Andrews committed
1124 1125 1126
/*
 * Start a individual test.
 */
Mark Andrews's avatar
Mark Andrews committed
1127 1128 1129 1130
static void
dotest(struct workitem *item) {
	unsigned char *cp;
	unsigned int ttl;
Mark Andrews's avatar
Mark Andrews committed
1131 1132
	int n, fd, id, tries = 0;
	unsigned int opcode;