genreport.c 87.5 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

11 12
#include <config.h>

Mark Andrews's avatar
Mark Andrews committed
13
#include <stdio.h>
Mark Andrews's avatar
Mark Andrews committed
14 15
#include <string.h>
#include <stdlib.h>
16
#include <stddef.h>
Mark Andrews's avatar
Mark Andrews committed
17
#include <unistd.h>
Mark Andrews's avatar
Mark Andrews committed
18
#include <assert.h>
19
#include <ctype.h>
Mark Andrews's avatar
Mark Andrews committed
20

Mark Andrews's avatar
Mark Andrews committed
21 22 23 24 25 26 27
#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>
28 29
#include <sys/ioctl.h>
#include <sys/uio.h>
30 31 32 33 34 35
#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
36 37

#include <errno.h>
38
#include <netdb.h>
Mark Andrews's avatar
Mark Andrews committed
39
#include <resolv.h>
40
#include <signal.h>
Mark Andrews's avatar
Mark Andrews committed
41

42 43 44 45
#ifndef FD_COPY
#define FD_COPY(x, y) memmove(y, x, sizeof(*x))
#endif

Mark Andrews's avatar
Mark Andrews committed
46 47 48 49 50 51
#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
52
#define ns_t_rrsig 46
Mark Andrews's avatar
Mark Andrews committed
53
#define ns_t_nsec 47
Mark Andrews's avatar
Mark Andrews committed
54
#define ns_t_dnskey 48
Mark Andrews's avatar
Mark Andrews committed
55 56 57 58
#define ns_t_dhcid 49
#define ns_t_nsec3 50
#define ns_t_nsec3param 51
#define ns_t_tlsa 52
59
#define ns_t_smimea 53
Mark Andrews's avatar
Mark Andrews committed
60 61 62 63 64
#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
65
#define ns_t_openpgpkey 61
Mark Andrews's avatar
Mark Andrews committed
66 67 68 69 70 71 72 73 74 75
#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
76 77
#define ns_t_avc 258
#define ns_t_doa 259
Mark Andrews's avatar
Mark Andrews committed
78 79
#define ns_t_ta 32768
#define ns_t_dlv 32769
Mark Andrews's avatar
Mark Andrews committed
80

81 82
#define ns_r_badcookie 23

83
static int eof = 0;
Mark Andrews's avatar
Mark Andrews committed
84 85
static int maxfd = -1;
static fd_set rfds, wfds;
Mark Andrews's avatar
Mark Andrews committed
86
static int outstanding = 0;
87
static int maxoutstanding = 100;
Mark Andrews's avatar
Mark Andrews committed
88 89 90 91 92 93

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

static int udp4 = -1;
static int udp6 = -1;
94 95
static int icmp4 = -1;
static int icmp6 = -1;
96

Mark Andrews's avatar
Mark Andrews committed
97 98 99
static int ipv4only = 0;
static int ipv6only = 0;

Mark Andrews's avatar
Mark Andrews committed
100
static int allok  = 0;
101
static int bad  = 0;
Mark Andrews's avatar
Mark Andrews committed
102
static int badtag  = 0;
103
static int ednsonly  = 0;
104
static int debug = 0;
Mark Andrews's avatar
Mark Andrews committed
105
static int inorder = 0;
106
static int serial = 0;
107
static int printnsid = 0;
108
static long long sent;
109

110 111

#ifdef HAVE_RES_GETSERVERS
112
static union res_sockaddr_union servers[10];
113 114 115 116 117 118 119
#else
static union {
        struct sockaddr_in sin;
        struct sockaddr_in6 sin6;
} servers[10];
#endif

120
static int nservers = 0;
121
int ident = 0;
Mark Andrews's avatar
Mark Andrews committed
122

Mark Andrews's avatar
Mark Andrews committed
123 124 125
/*
 * Doubly linked list macros.
 */
Mark Andrews's avatar
Mark Andrews committed
126 127 128 129 130 131 132 133
#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
134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156
	(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
157
		(item)->link.linked = 1; \
Mark Andrews's avatar
Mark Andrews committed
158
	} \
Mark Andrews's avatar
Mark Andrews committed
159 160 161 162 163 164 165 166 167 168 169 170
} 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; \
171
	(item)->link.linked = 0; \
Mark Andrews's avatar
Mark Andrews committed
172 173 174
} while (0)

#define NEXT(item, link) (item)->link.next
Mark Andrews's avatar
Mark Andrews committed
175
#define PREV(item, link) (item)->link.prev
176
#define LINKED(item, link) (item)->link.linked
Mark Andrews's avatar
Mark Andrews committed
177 178 179 180

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

Mark Andrews's avatar
Mark Andrews committed
181 182 183
/*
 * Test groupings
 */
Mark Andrews's avatar
Mark Andrews committed
184 185 186 187 188 189 190
#define EDNS 0x01
#define COMM 0x02
#define FULL 0x04
#define TYPE 0x08
#define EXPL 0x10

static int what = EDNS;
191

Mark Andrews's avatar
Mark Andrews committed
192
static struct {
Mark Andrews's avatar
Mark Andrews committed
193 194 195 196 197 198 199 200
	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 */
201
	unsigned int cookie;		/* opt record has cookie */
Mark Andrews's avatar
Mark Andrews committed
202 203 204 205 206 207 208 209 210 211
	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
212
	const char *dig;		/* dig command */
213
} opts[] = {
214
	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
215 216 217 218 219 220 221
	{ "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
222
	  "dig +noedns +ad +norec SOA <zone>"
Mark Andrews's avatar
Mark Andrews committed
223 224 225 226 227
	},
	{ "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,
228
	  "### dig +noedns +noad +norec +raflag SOA <zone> ###"
Mark Andrews's avatar
Mark Andrews committed
229 230 231 232 233
	},
	{ "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,
234
	  "### dig +noedns +noad +norec +tcflag SOA <zone> ###"
Mark Andrews's avatar
Mark Andrews committed
235 236 237 238 239 240 241 242
	},
	{ "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,
243
	  "### dig +noedns +header-only +opcode=15 +tcflag +rec +raflag +cd +ad +aaflag +zflag ###"
Mark Andrews's avatar
Mark Andrews committed
244 245 246 247 248 249 250
	},
	{ "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>"
	},
251 252

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
253 254 255 256 257 258 259 260 261
	{ "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
262
	{ "ednsopt",   EDNS,  4, "\x00\x64\x00\x00",	/* 100 */
Mark Andrews's avatar
Mark Andrews committed
263 264 265
				     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
266
	{ "edns1opt",  EDNS,  4, "\x00\x64\x00\x00",	/* 100 */
Mark Andrews's avatar
Mark Andrews committed
267 268 269
				     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>"
	},
270
	{ "do",        EDNS,  0, "",
Mark Andrews's avatar
Mark Andrews committed
271 272 273
				     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
274 275 276 277
	{ "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
278 279 280 281 282 283
	{ "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>"
	},
284
	{ "optlist",   EDNS,  4 + 8 + 4 + 12,
285 286 287 288
	  "\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
289 290 291
				     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>"
	},
292 293

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
294
	{ "ednsnsid", FULL,  4, "\x00\x03\x00\x00",	/* NSID */
Mark Andrews's avatar
Mark Andrews committed
295 296 297
				     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
298
	{ "ednscookie", FULL, 12, "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08", /* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
299 300 301
				     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
302
	{ "ednsexpire", FULL, 4, "\x00\x09\x00\x00",	/* EXPIRE */
Mark Andrews's avatar
Mark Andrews committed
303 304 305
				     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
306
	{ "ednssubnet", FULL,  8, "\x00\x08\x00\x04\x00\x01\x00\x00",	/* ECS */
Mark Andrews's avatar
Mark Andrews committed
307 308 309 310
				     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
311
	{ "edns1nsid", FULL,  4, "\x00\x03\x00\x00",	/* NSID */
Mark Andrews's avatar
Mark Andrews committed
312 313 314
				     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
315
	{ "edns1cookie", FULL, 12, "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08", /* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
316 317 318
				     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
319
	{ "edns1expire", FULL, 4, "\x00\x09\x00\x00",	/* EXPIRE */
Mark Andrews's avatar
Mark Andrews committed
320 321 322
				     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
323
	{ "edns1subnet", FULL,  8, "\x00\x08\x00\x04\x00\x01\x00\x00",	/* ECS */
Mark Andrews's avatar
Mark Andrews committed
324 325 326 327 328 329
				     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>"
	},
330 331

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
332
	{ "bind11",    COMM, 12, "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08", /* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
333 334 335
				     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
336
	{ "dig11",     COMM, 12, "\x00\x0a\x00\x08\x01\x02\x03\x04\x05\x06\x07\x08", /* COOKIE */
Mark Andrews's avatar
Mark Andrews committed
337 338 339
				     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>"
	},
340 341

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383
	{ "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>"
	},
384 385

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430
	{ "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>"
	},
431 432

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471
	{ "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>"
	},
472 473

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512
	{ "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>"
	},
513 514

	/*                           size   eflgs vr  T ck ig tc rd ra cd ad aa  z  op  type */
Mark Andrews's avatar
Mark Andrews committed
515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544
	{ "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>"
	}
545 546
};

Mark Andrews's avatar
Mark Andrews committed
547 548 549
/*
 * Summary structure where results from multiple lookups are recorded.
 */
550
struct summary {
Mark Andrews's avatar
Mark Andrews committed
551 552 553 554 555
	struct {
		struct summary *prev;
		struct summary *next;
		int linked;
	} link;
Mark Andrews's avatar
Mark Andrews committed
556 557 558
	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
559
	int tests;			/* number of outstanding tests */
Mark Andrews's avatar
Mark Andrews committed
560
	int last;			/* last test sent */
Mark Andrews's avatar
Mark Andrews committed
561
	int deferred;			/* was the printing deferred */
Mark Andrews's avatar
Mark Andrews committed
562
	int done;			/* we are done */
Mark Andrews's avatar
Mark Andrews committed
563
	int type;			/* recursive query lookup type */
564
	int nodata;			/* recursive query got nodata */
Mark Andrews's avatar
Mark Andrews committed
565 566 567 568 569
	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 */
570 571
	int faileda;
	int failedaaaa;
Mark Andrews's avatar
Mark Andrews committed
572
	int cname;			/* NS is CNAME */
573 574
	int cnamea;			/* Nameserver is CNAME */
	int cnameaaaa;			/* Nameserver is CNAME */
Mark Andrews's avatar
Mark Andrews committed
575
	int seenrrsig;			/* a rrsig was seen in "do" test */
576 577 578 579 580 581
	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
582
	struct summary *xlink;		/* cross link of recursive A/AAAA */
583 584
	int nsidlen;
	char nsid[100];			/* nsid if found */
585 586 587
	char results[sizeof(opts)/sizeof(opts[0])][100];
};

Mark Andrews's avatar
Mark Andrews committed
588 589 590 591 592
static struct {
	struct summary *head;
	struct summary *tail;
} summaries;

Mark Andrews's avatar
Mark Andrews committed
593 594 595 596
struct workitem {
	struct {
		struct workitem *next;
		struct workitem *prev;
597
		int linked;
598
	} link, clink, plink, rlink, idlink, seqlink;
Mark Andrews's avatar
Mark Andrews committed
599 600 601
	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
602 603 604
	int test;			/* test number / server number */
	int sends;			/* number of times this UDP request
					 * has been sent */
Mark Andrews's avatar
Mark Andrews committed
605 606
	int buflen;			/* the size of the request to be sent */
	int tcpfd;			/* the tcp file descriptor */
Mark Andrews's avatar
Mark Andrews committed
607 608
	int outstanding;		/* outstanding has been set */
	int havelen;			/* readlen is tcp message length */
Mark Andrews's avatar
Mark Andrews committed
609 610 611 612 613
	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 */
	struct summary *summary;	/* where this test is summaried */
Mark Andrews's avatar
Mark Andrews committed
614 615
};

616
/*
Mark Andrews's avatar
Mark Andrews committed
617
 * Work queues:
618 619 620
 *	'work' udp qeries;
 *	'connecting' tcp qeries;
 *	'reading' tcp qeries;
Mark Andrews's avatar
Mark Andrews committed
621
 *	'pending' deferred work items;
Mark Andrews's avatar
Mark Andrews committed
622 623 624
 *
 * Outstanding queries by qid.
 *	'ids'
625 626 627
 *
 * Outstanding icmp by seq.
 *	'ids'
628
 */
Mark Andrews's avatar
Mark Andrews committed
629 630 631
static struct {
	struct workitem *head;
	struct workitem *tail;
632
} work, connecting, reading, pending, ids[0x10000], seq[0x10000];
Mark Andrews's avatar
Mark Andrews committed
633

Mark Andrews's avatar
Mark Andrews committed
634 635 636
static void
dotest(struct workitem *item);

637 638 639
static void
nextserver(struct workitem *item);

640 641
static void
connecttoserver(struct workitem *item);
Mark Andrews's avatar
Mark Andrews committed
642

Mark Andrews's avatar
Mark Andrews committed
643 644 645
static void
report(struct summary *summary);

Mark Andrews's avatar
Mark Andrews committed
646 647 648 649 650
static int
storage_equal(struct sockaddr_storage *s1, struct sockaddr_storage *s2) {
	struct sockaddr_in *sin1, *sin2;
	struct sockaddr_in6 *sin61, *sin62;

651
	if (s1->ss_family != s2->ss_family)
Mark Andrews's avatar
Mark Andrews committed
652 653 654 655 656 657
		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
658

Mark Andrews's avatar
Mark Andrews committed
659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674
		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
675 676 677
/*
 * Check if it is safe to use this id to this address.
 */
Mark Andrews's avatar
Mark Andrews committed
678 679 680 681 682 683
static int
checkid(struct sockaddr_storage *storage, int id) {
	struct workitem *item;

	item = HEAD(ids[id]);
	while (item != NULL &&
684
	       !storage_equal(storage, &item->summary->storage))
Mark Andrews's avatar
Mark Andrews committed
685 686 687 688
		item = NEXT(item, idlink);
	return ((item == NULL) ? 1 : 0);
}

689 690 691 692 693 694 695 696 697 698 699 700 701 702 703
/*
 * 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
704 705 706 707 708 709 710
static void
freesummary(struct summary *summary) {
	if (LINKED(summary, link))
		UNLINK(summaries, summary, link);
	free(summary);
}

Mark Andrews's avatar
Mark Andrews committed
711 712 713
/*
 * Generate a report line.
 */
714
static void
Mark Andrews's avatar
Mark Andrews committed
715
printandfree(struct summary *summary) {
716 717 718 719 720 721 722 723
	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
724
	    summary->nodataa && summary->nodataaaaa) {
725 726
		printf("%s. %s: no address records found\n",
		       summary->zone, summary->ns);
Mark Andrews's avatar
Mark Andrews committed
727
		freesummary(summary);
728 729
		return;
	}
730

731 732 733 734
	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
735
		freesummary(summary);
736 737
		return;
	}
738

739 740 741 742 743 744 745 746
	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;
	}

747 748 749 750 751 752 753 754
	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
755 756 757 758 759 760
	if ((summary->type == ns_t_ns) && summary->cname) {
		printf("%s.: zone is a CNAME\n", summary->zone);
		freesummary(summary);
		return;
	}

761 762 763
	/*
	 * Do deferred xlink failure reports.
	 */
764 765
	if (summary->type == ns_t_a &&
	    summary->nodataa && summary->failedaaaa) {
766 767 768 769 770
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" AAAAA lookup failed\n");
		freesummary(summary);
		return;
	}
771 772
	if (summary->type == ns_t_aaaa &&
	    summary->nodataaaaa && summary->faileda) {
773 774 775 776 777
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" A lookup failed\n");
		freesummary(summary);
		return;
	}
778 779
	if (summary->type == ns_t_a &&
	    summary->faileda && summary->nxdomainaaaa) {
780 781 782 783 784
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" AAAAA nxdomain\n");
		freesummary(summary);
		return;
	}
785 786
	if (summary->type == ns_t_aaaa &&
	    summary->failedaaaa && summary->nxdomaina) {
787 788 789 790 791
		printf("%s. %s:", summary->zone, summary->ns);
		printf(" A nxdomain\n");
		freesummary(summary);
		return;
	}
792 793 794 795 796 797
	if (summary->type == ns_t_ns && summary->nodata) {
		printf("%s.:", summary->zone);
		printf(" no NS records found\n");
		freesummary(summary);
		return;
	}
798

Mark Andrews's avatar
Mark Andrews committed
799
	if (summary->done || summary->nodataa || summary->nodataaaaa) {
Mark Andrews's avatar
Mark Andrews committed
800
		freesummary(summary);
801 802
		return;
	}
Mark Andrews's avatar
Mark Andrews committed
803

804 805 806
	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
807
			freesummary(summary);
808 809 810 811 812 813
			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
814
		freesummary(summary);
815 816 817 818 819
		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
820
		freesummary(summary);
821 822 823 824 825
		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
826
		freesummary(summary);
827 828 829
		return;
	}
	if (summary->type == ns_t_ns) {
Mark Andrews's avatar
Mark Andrews committed
830
		printf("%s.:", summary->zone);
831
		printf(" NS lookup failed\n");
Mark Andrews's avatar
Mark Andrews committed
832
		freesummary(summary);
833 834
		return;
	}
835

836 837 838 839 840
	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
841
		freesummary(summary);
Mark Andrews's avatar
Mark Andrews committed
842 843 844
		return;
	}

845 846 847 848 849
	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
850

851
	if (addr == NULL)
852
		strncpy(addrbuf, "<unknown>", sizeof(addrbuf));
853 854 855 856
	else
		inet_ntop(summary->storage.ss_family, addr,
			  addrbuf, sizeof(addrbuf));

857 858
	x = -1;
	printf("%s. @%s (%s.):", summary->zone, addrbuf, summary->ns);
Mark Andrews's avatar
Mark Andrews committed
859 860 861 862 863
	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
Mark Andrews committed
864
				continue;
Mark Andrews's avatar
Mark Andrews committed
865
			if (summary->results[i][0] == 0)
866
				strncpy(summary->results[i], "skipped", 100);
Mark Andrews's avatar
Mark Andrews committed
867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882
			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
Mark Andrews committed
883
		}
884 885 886 887 888 889 890 891 892 893
	if (printnsid && summary->nsidlen != 0) {
		printf(" (");
		for (i = 0; i < summary->nsidlen; i++) {
			if (isprint(summary->nsid[i] & 0xff))
				putchar(summary->nsid[i]);
			else
				putchar('.');
		}
		printf(")");
	}
894
	printf("\n");
Mark Andrews's avatar
Mark Andrews committed
895 896 897 898 899 900
	freesummary(summary);
}

static void
report(struct summary *summary) {

Mark Andrews's avatar
Mark Andrews committed
901 902 903 904
	/*
	 * Send the next test now that we have completed the last test.
	 */
	if (serial && summary->type == 0 && summary->tests == 1) {
905 906 907
		for (summary->last++;
		     summary->last < sizeof(opts)/sizeof(opts[0]);
		     summary->last++) {
Mark Andrews's avatar
Mark Andrews committed
908
			struct workitem *item;
909 910
			if (opts[summary->last].what != 0 &&
			    (opts[summary->last].what & what) == 0)
Mark Andrews's avatar
Mark Andrews committed
911 912 913 914 915
				continue;
			item = calloc(1, sizeof(*item));
			if (item == NULL)
				continue;
			item->summary = summary;
916
			item->test = item->summary->last;
917
			item->tcpfd = -1;
Mark Andrews's avatar
Mark Andrews committed
918 919 920 921 922
			dotest(item);
			return;
		}
	}

Mark Andrews's avatar
Mark Andrews committed
923 924 925 926 927 928 929 930 931 932 933 934
	/*
	 * 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) {
935 936 937 938 939 940 941 942
		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
943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958
		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;
		}
959 960 961 962 963 964 965 966 967 968
		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
969 970 971 972 973 974 975 976 977 978 979

		/*
		 * Remove the cross link.
		 */
		summary->xlink->xlink = NULL;
		summary->xlink = NULL;
		if (summary->done) {
			freesummary(summary);
			goto print_deferred;
		}
	}
980 981 982 983 984 985
	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
986 987 988 989 990 991 992 993 994 995

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

 print_deferred:
	while ((summary = HEAD(summaries)) && summary->deferred)
		printandfree(summary);
996 997
}

Mark Andrews's avatar
Mark Andrews committed
998 999 1000
/*
 * Free a work item and unlink.
 */
1001 1002
static void
freeitem(struct workitem * item) {
Mark Andrews's avatar
Mark Andrews committed
1003 1004
	if (item->summary)
		report(item->summary);
1005
	if (item->tcpfd != -1) {
1006 1007 1008 1009 1010 1011 1012 1013 1014 1015
		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
1016 1017
	if (LINKED(item, plink))
		UNLINK(pending, item, plink);
1018 1019 1020 1021 1022 1023
	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);
1024 1025
	if (LINKED(item, seqlink))
		UNLINK(seq[item->id], item, seqlink);
1026 1027 1028
	free(item);
}

Mark Andrews's avatar
Mark Andrews committed
1029 1030 1031
/*
 * Add a tag to the report.
 */
1032
static void
1033
addtag(struct workitem *item, const char *tag) {
1034
	char *result = item->summary->results[item->test];
1035 1036
	if (result[0]) strncat(result, ",", 100);
	strncat(result, tag, 100);
1037 1038
}

Mark Andrews's avatar
Mark Andrews committed
1039 1040 1041
/*
 * Resend a UDP request.
 */
1042 1043 1044
static void
resend(struct workitem *item) {
	int n, fd = -1;
1045
	socklen_t ss_len;
1046 1047 1048 1049

	switch (item->summary->storage.ss_family) {
	case AF_INET:
		fd = udp4;
1050
		ss_len = sizeof(struct sockaddr_in);
1051 1052 1053
		break;
	case AF_INET6:
		fd = udp6;
1054
		ss_len = sizeof(struct sockaddr_in6);
1055 1056 1057 1058 1059
		break;
	}

	if (fd == -1) {
		addtag(item, "skipped");
1060
		item->summary->allok = 0;
1061 1062 1063 1064
		freeitem(item);
		return;
	}

1065
	if (!item->outstanding && outstanding > maxoutstanding) {
1066 1067
		gettimeofday(&item->when, NULL);
		item->when.tv_sec += 1;
Mark Andrews's avatar
Mark Andrews committed
1068 1069 1070
		if (LINKED(item, link))
			UNLINK(work, item, link);
		APPEND(pending, item, plink);
1071 1072 1073 1074
		return;
	}

	n = sendto(fd, item->buf, item->buflen, 0,
1075
		   (struct sockaddr *)&item->summary->storage, ss_len);
1076 1077 1078 1079 1080 1081 1082 1083
	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);
1084
		sent++;
1085 1086 1087 1088 1089
		if (!item->outstanding++)
			outstanding++;
		gettimeofday(&item->when, NULL);
		item->when.tv_sec += 1;
		item->sends++;
Mark Andrews's avatar
Mark Andrews committed
1090 1091
		if (LINKED(item, link))
			UNLINK(work, item, link);
1092
		APPEND(work, item, link);
1093 1094
	} else if (item->summary->type) {
		nextserver(item);
1095 1096
	} else {
		addtag(item, "failed");
1097 1098
		item->summary->allok = 0;
		item->summary->seenfailure = 1;
1099 1100 1101 1102
		freeitem(item);
	}
}

Mark Andrews's avatar
Mark Andrews committed
1103 1104 1105
/*
 * Start a individual test.
 */
Mark Andrews's avatar
Mark Andrews committed
1106 1107 1108 1109
static void
dotest(struct workitem *item) {
	unsigned char *cp;
	unsigned int ttl;
Mark Andrews's avatar
Mark Andrews committed
1110
	int n, fd, id, tries = 0, opcode;
1111 1112
	socklen_t ss_len;
	
Mark Andrews's avatar
Mark Andrews committed
1113

1114
	switch (item->summary->storage.ss_family) {
Mark Andrews's avatar
Mark Andrews committed
1115 1116
	case AF_INET:
		fd = udp4;
1117
		ss_len = sizeof(struct sockaddr_in);
Mark Andrews's avatar
Mark Andrews committed
1118 1119 1120
		break;
	case AF_INET6:
		fd = udp6;
1121
		ss_len = sizeof(struct sockaddr_in6);
Mark Andrews's avatar
Mark Andrews committed
1122 1123 1124 1125
		break;
	}

	if (fd == -1) {
1126
		addtag(item, "skipped");
1127
		item->summary->allok = 0;
1128
		freeitem(item);
Mark Andrews's avatar
Mark Andrews committed
1129 1130
		return;
	}
Mark Andrews's avatar
Mark Andrews committed
1131

Mark Andrews's avatar
Mark Andrews committed
1132 1133 1134 1135
	/*
	 * res_mkquery only really knows about QUERY but it is useful
	 * for initalising the header when the opcode isn't QUERY.
	 */
Mark Andrews's avatar
Mark Andrews committed
1136 1137 1138 1139 1140 1141 1142 1143
	opcode = opts[item->test].opcode;
	switch (opcode) {
	case 0: break;
	default:
		opcode = ns_o_query;
	}

	n = res_mkquery(opcode, item->summary->zone, ns_c_in,
1144 1145
			opts[item->test].type, NULL, 0, NULL,
			item->buf, sizeof(item->buf));
Mark Andrews's avatar
Mark Andrews committed
1146 1147 1148 1149 1150 1151 1152
	/* fixup opcode? */
	if (n > 0 && opts[item->test].opcode != opcode) {
		item->buf[2] &= 0x17;
		item->buf[2] |= (opts[item->test].opcode & 0x0f) << 3;
		/* Zero question section. */
		if (opts[item->test].opcode == 15)
			item->buf[4] = item->buf[5] = 0;
1153
		n = 12;
Mark Andrews's avatar
Mark Andrews committed
1154
	}
Mark Andrews's avatar
Mark Andrews committed
1155 1156 1157 1158

	/*
	 * Set DNS flags as specified by test.
	 */
1159 1160
	if (opts[item->test].tc)
		item->buf[2] |= 0x2;	/* set tc */
Mark Andrews's avatar
Mark Andrews committed
1161 1162 1163 1164
	if (opts[item->test].rd)
		item->buf[2] |= 0x1;	/* set rd */
	else
		item->buf[2] &= ~0x1;	/* clear rd */
1165 1166 1167 1168 1169 1170 1171 1172
	if (opts[item->test].ra)
		item->buf[3] |= 0x80;	/* set ra */
	if (opts[item->test].z)
		item->buf[3] |= 0x40;	/* set z */
	if (opts[item->test].ad)
		item->buf[3] |= 0x20;	/* set ad */
	if (opts[item->test].cd)
		item->buf[3] |= 0x10;	/* set cd */
Mark Andrews's avatar
Mark Andrews committed
1173

1174
	if (n > 12) {
1175
		char name[1024];
Mark Andrews's avatar
Mark Andrews committed
1176 1177 1178
		/*
		 * Make zone canonical.
		 */
1179 1180
		dn_expand(item->buf, item->buf + n, item->buf + 12,
			  name, sizeof(name));
1181
		strncpy(item->summary->zone, name,
1182
			sizeof(item->summary->zone));
1183
	}
Mark Andrews's avatar
Mark Andrews committed
1184

Mark Andrews's avatar
Mark Andrews committed
1185 1186 1187 1188 1189
	/*
	 * Add OPT record if required by test.
	 */
	if (n > 0 && opts[item->test].udpsize > 0 &&
	    11 + opts[item->test].rdlen < 512 - n) {
Mark Andrews's avatar
Mark Andrews committed
1190
		cp = item->buf + n;
1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201
		*cp++ = 0;				/* name */
		ns_put16(ns_t_opt, cp);			/* type */
		cp += 2;
		ns_put16(opts[item->test].udpsize, cp);	/* class */
		cp += 2;
		ttl = (opts[item->test].version << 16) |
		      opts[item->test].flags;
		ns_put32(ttl, cp);			/* ttl */
		cp += 4;
		ns_put16(opts[item->test].rdlen, cp);	/* rdlen */
		cp += 2;
Mark Andrews's avatar
Mark Andrews committed
1202 1203
		memcpy(cp, opts[item->test].rdata, opts[item->test].rdlen);
		cp += opts[item->test].rdlen;
1204 1205
		item->buf[11] = 1;			/* adcount */
		n = cp - item->buf;			/* total length */
Mark Andrews's avatar
Mark Andrews committed
1206 1207 1208
	}

	if (n > 0) {
Mark Andrews's avatar
Mark Andrews committed
1209 1210 1211
		/*
		 * Adjust id if it clashes with a outstanding request.
		 */
Mark Andrews's avatar
Mark Andrews committed
1212 1213
		id = item->buf[0] << 8 | item->buf[1];

1214 1215
		while (!checkid(&item->summary->storage, id) &&
		       tries++ < 0xffff)
Mark Andrews's avatar
Mark Andrews committed
1216
			id = (id + 1) & 0xffff;
Mark Andrews's avatar
Mark Andrews committed
1217

Mark Andrews's avatar
Mark Andrews committed
1218
		if (tries == 0xffff) {
1219
			addtag(item, "skipped");
1220
			item->summary->allok = 0;
1221
			item->summary->seenfailure = 1;
1222
			freeitem(item);
Mark Andrews's avatar
Mark Andrews committed
1223 1224
			return;
		}
Mark Andrews's avatar
Mark Andrews committed
1225

Mark Andrews's avatar
Mark Andrews committed
1226 1227 1228 1229 1230
		item->buf[0] = id >> 8;
		item->buf[1] = id & 0xff;
		item->id = id;
		item->buflen = n;

1231 1232 1233 1234 1235
		if (opts[item->test].tcp) {
			connecttoserver(item);
			return;
		}

Mark Andrews's avatar
Mark Andrews committed
1236 1237 1238
		/*
		 * If there is too much outstanding work queue this item.
		 */
1239
		if (!item->outstanding && outstanding > maxoutstanding) {
1240 1241
			gettimeofday(&item->when, NULL);
			item->when.tv_sec += 1;
Mark Andrews's avatar
Mark Andrews committed
1242
			APPEND(pending, item, plink);
1243 1244 1245 1246
			APPEND(ids[item->id], item, idlink);
			return;
		}

Mark Andrews's avatar
Mark Andrews committed
1247
		n = sendto(fd, item->buf, item->buflen, 0,
1248
			   (struct sockaddr *)&item->summary->storage, ss_len);
Mark Andrews's avatar
Mark Andrews committed
1249 1250 1251
	}

	if (n > 0) {
1252 1253 1254 1255 1256 1257 1258 1259 1260
		if (debug)
			printf("%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);
		if (!item->outstanding++)
			outstanding++;
1261
		sent++;
Mark Andrews's avatar
Mark Andrews committed
1262
		gettimeofday(&item->when, NULL);
1263
		item->when.tv_sec += 1;
Mark Andrews's avatar
Mark Andrews committed
1264 1265 1266
		item->sends = 1;
		APPEND(work, item, link);
		APPEND(ids[item->id], item, idlink);
1267 1268
	} else {
		addtag(item, "failed");