2 * Copyright (c) 2010-2012 Niels Provos and Nick Mathewson
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 #include "event2/event-config.h"
35 #include <sys/types.h>
37 #ifdef _EVENT_HAVE_SYS_TIME_H
40 #include <sys/queue.h>
42 #include <sys/socket.h>
44 #include <netinet/in.h>
45 #include <arpa/inet.h>
48 #ifdef _EVENT_HAVE_NETINET_IN6_H
49 #include <netinet/in6.h>
60 #include "event2/dns.h"
61 #include "event2/dns_struct.h"
62 #include "event2/event.h"
63 #include "event2/event_compat.h"
64 #include "event2/util.h"
65 #include "event2/listener.h"
66 #include "event2/bufferevent.h"
67 #include "log-internal.h"
69 #include "regress_testutils.h"
71 #include "../util-internal.h"
74 static struct evdns_server_port *dns_port;
75 evutil_socket_t dns_sock = -1;
77 /* Helper: return the port that a socket is bound on, in host order. */
79 regress_get_socket_port(evutil_socket_t fd)
81 struct sockaddr_storage ss;
82 ev_socklen_t socklen = sizeof(ss);
83 if (getsockname(fd, (struct sockaddr*)&ss, &socklen) != 0)
85 if (ss.ss_family == AF_INET)
86 return ntohs( ((struct sockaddr_in*)&ss)->sin_port);
87 else if (ss.ss_family == AF_INET6)
88 return ntohs( ((struct sockaddr_in6*)&ss)->sin6_port);
93 struct evdns_server_port *
94 regress_get_dnsserver(struct event_base *base,
96 evutil_socket_t *psock,
97 evdns_request_callback_fn_type cb,
100 struct evdns_server_port *port = NULL;
101 evutil_socket_t sock;
102 struct sockaddr_in my_addr;
104 sock = socket(AF_INET, SOCK_DGRAM, 0);
106 tt_abort_perror("socket");
109 evutil_make_socket_nonblocking(sock);
111 memset(&my_addr, 0, sizeof(my_addr));
112 my_addr.sin_family = AF_INET;
113 my_addr.sin_port = htons(*portnum);
114 my_addr.sin_addr.s_addr = htonl(0x7f000001UL);
115 if (bind(sock, (struct sockaddr*)&my_addr, sizeof(my_addr)) < 0) {
116 tt_abort_perror("bind");
118 port = evdns_add_server_port_with_base(base, sock, 0, cb, arg);
120 *portnum = regress_get_socket_port(sock);
130 regress_clean_dnsserver(void)
133 evdns_close_server_port(dns_port);
135 evutil_closesocket(dns_sock);
139 regress_dns_server_cb(struct evdns_server_request *req, void *data)
141 struct regress_dns_server_table *tab = data;
142 const char *question;
144 if (req->nquestions != 1)
145 TT_DIE(("Only handling one question at a time; got %d",
148 question = req->questions[0]->name;
150 while (tab->q && evutil_ascii_strcasecmp(question, tab->q) &&
154 TT_DIE(("Unexpected question: '%s'", question));
158 if (!strcmp(tab->anstype, "err")) {
159 int err = atoi(tab->ans);
160 tt_assert(! evdns_server_request_respond(req, err));
162 } else if (!strcmp(tab->anstype, "errsoa")) {
163 int err = atoi(tab->ans);
165 "\x04" "dns1" "\x05" "icann" "\x03" "org" "\0"
166 "\x0a" "hostmaster" "\x05" "icann" "\x03" "org" "\0"
167 "\x77\xde\x5e\xba" /* serial */
168 "\x00\x00\x1c\x20" /* refreshtime = 2h */
169 "\x00\x00\x0e\x10" /* retry = 1h */
170 "\x00\x12\x75\x00" /* expiration = 14d */
171 "\x00\x00\x0e\x10" /* min.ttl = 1h */
173 evdns_server_request_add_reply(
174 req, EVDNS_AUTHORITY_SECTION,
175 "example.com", EVDNS_TYPE_SOA, EVDNS_CLASS_INET,
176 42, sizeof(soa_record) - 1, 0, soa_record);
177 tt_assert(! evdns_server_request_respond(req, err));
179 } else if (!strcmp(tab->anstype, "A")) {
181 evutil_inet_pton(AF_INET, tab->ans, &in);
182 evdns_server_request_add_a_reply(req, question, 1, &in.s_addr,
184 } else if (!strcmp(tab->anstype, "AAAA")) {
186 evutil_inet_pton(AF_INET6, tab->ans, &in6);
187 evdns_server_request_add_aaaa_reply(req,
188 question, 1, &in6.s6_addr, 100);
190 TT_DIE(("Weird table entry with type '%s'", tab->anstype));
192 tt_assert(! evdns_server_request_respond(req, 0))
195 tt_want(! evdns_server_request_drop(req));
199 regress_dnsserver(struct event_base *base, ev_uint16_t *port,
200 struct regress_dns_server_table *search_table)
202 dns_port = regress_get_dnsserver(base, port, &dns_sock,
203 regress_dns_server_cb, search_table);
204 return dns_port != NULL;
208 regress_get_listener_addr(struct evconnlistener *lev,
209 struct sockaddr *sa, ev_socklen_t *socklen)
211 evutil_socket_t s = evconnlistener_get_fd(lev);
214 return getsockname(s, sa, socklen);