regress_testutils.c revision 1.1.1.1
1 /* $NetBSD: regress_testutils.c,v 1.1.1.1 2013/04/11 16:43:32 christos Exp $ */ 2 /* 3 * Copyright (c) 2010-2012 Niels Provos and Nick Mathewson 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The name of the author may not be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #ifdef WIN32 29 #include <winsock2.h> 30 #include <windows.h> 31 #include <ws2tcpip.h> 32 #endif 33 34 #include "event2/event-config.h" 35 #include <sys/cdefs.h> 36 __RCSID("$NetBSD: regress_testutils.c,v 1.1.1.1 2013/04/11 16:43:32 christos Exp $"); 37 38 #include <sys/types.h> 39 #include <sys/stat.h> 40 #ifdef _EVENT_HAVE_SYS_TIME_H 41 #include <sys/time.h> 42 #endif 43 #include <sys/queue.h> 44 #ifndef WIN32 45 #include <sys/socket.h> 46 #include <signal.h> 47 #include <netinet/in.h> 48 #include <arpa/inet.h> 49 #include <unistd.h> 50 #endif 51 #ifdef _EVENT_HAVE_NETINET_IN6_H 52 #include <netinet/in6.h> 53 #endif 54 #ifdef HAVE_NETDB_H 55 #include <netdb.h> 56 #endif 57 #include <fcntl.h> 58 #include <stdlib.h> 59 #include <stdio.h> 60 #include <string.h> 61 #include <errno.h> 62 63 #include "event2/dns.h" 64 #include "event2/dns_struct.h" 65 #include "event2/event.h" 66 #include "event2/event_compat.h" 67 #include "event2/util.h" 68 #include "event2/listener.h" 69 #include "event2/bufferevent.h" 70 #include "log-internal.h" 71 #include "regress.h" 72 #include "regress_testutils.h" 73 74 #include "../util-internal.h" 75 76 /* globals */ 77 static struct evdns_server_port *dns_port; 78 evutil_socket_t dns_sock = -1; 79 80 /* Helper: return the port that a socket is bound on, in host order. */ 81 int 82 regress_get_socket_port(evutil_socket_t fd) 83 { 84 struct sockaddr_storage ss; 85 ev_socklen_t socklen = sizeof(ss); 86 if (getsockname(fd, (struct sockaddr*)&ss, &socklen) != 0) 87 return -1; 88 if (ss.ss_family == AF_INET) 89 return ntohs( ((struct sockaddr_in*)&ss)->sin_port); 90 else if (ss.ss_family == AF_INET6) 91 return ntohs( ((struct sockaddr_in6*)&ss)->sin6_port); 92 else 93 return -1; 94 } 95 96 struct evdns_server_port * 97 regress_get_dnsserver(struct event_base *base, 98 ev_uint16_t *portnum, 99 evutil_socket_t *psock, 100 evdns_request_callback_fn_type cb, 101 void *arg) 102 { 103 struct evdns_server_port *port = NULL; 104 evutil_socket_t sock; 105 struct sockaddr_in my_addr; 106 107 sock = socket(AF_INET, SOCK_DGRAM, 0); 108 if (sock < 0) { 109 tt_abort_perror("socket"); 110 } 111 112 evutil_make_socket_nonblocking(sock); 113 114 memset(&my_addr, 0, sizeof(my_addr)); 115 my_addr.sin_family = AF_INET; 116 my_addr.sin_port = htons(*portnum); 117 my_addr.sin_addr.s_addr = htonl(0x7f000001UL); 118 if (bind(sock, (struct sockaddr*)&my_addr, sizeof(my_addr)) < 0) { 119 evutil_closesocket(sock); 120 tt_abort_perror("bind"); 121 } 122 port = evdns_add_server_port_with_base(base, sock, 0, cb, arg); 123 if (!*portnum) 124 *portnum = regress_get_socket_port(sock); 125 if (psock) 126 *psock = sock; 127 128 return port; 129 end: 130 return NULL; 131 } 132 133 void 134 regress_clean_dnsserver(void) 135 { 136 if (dns_port) 137 evdns_close_server_port(dns_port); 138 if (dns_sock >= 0) 139 evutil_closesocket(dns_sock); 140 } 141 142 void 143 regress_dns_server_cb(struct evdns_server_request *req, void *data) 144 { 145 struct regress_dns_server_table *tab = data; 146 const char *question; 147 148 if (req->nquestions != 1) 149 TT_DIE(("Only handling one question at a time; got %d", 150 req->nquestions)); 151 152 question = req->questions[0]->name; 153 154 while (tab->q && evutil_ascii_strcasecmp(question, tab->q) && 155 strcmp("*", tab->q)) 156 ++tab; 157 if (tab->q == NULL) 158 TT_DIE(("Unexpected question: '%s'", question)); 159 160 ++tab->seen; 161 162 if (!strcmp(tab->anstype, "err")) { 163 int err = atoi(tab->ans); 164 tt_assert(! evdns_server_request_respond(req, err)); 165 return; 166 } else if (!strcmp(tab->anstype, "errsoa")) { 167 int err = atoi(tab->ans); 168 char soa_record[] = 169 "\x04" "dns1" "\x05" "icann" "\x03" "org" "\0" 170 "\x0a" "hostmaster" "\x05" "icann" "\x03" "org" "\0" 171 "\x77\xde\x5e\xba" /* serial */ 172 "\x00\x00\x1c\x20" /* refreshtime = 2h */ 173 "\x00\x00\x0e\x10" /* retry = 1h */ 174 "\x00\x12\x75\x00" /* expiration = 14d */ 175 "\x00\x00\x0e\x10" /* min.ttl = 1h */ 176 ; 177 evdns_server_request_add_reply( 178 req, EVDNS_AUTHORITY_SECTION, 179 "example.com", EVDNS_TYPE_SOA, EVDNS_CLASS_INET, 180 42, sizeof(soa_record) - 1, 0, soa_record); 181 tt_assert(! evdns_server_request_respond(req, err)); 182 return; 183 } else if (!strcmp(tab->anstype, "A")) { 184 struct in_addr in; 185 if (!evutil_inet_pton(AF_INET, tab->ans, &in)) { 186 TT_DIE(("Bad A value %s in table", tab->ans)); 187 } 188 evdns_server_request_add_a_reply(req, question, 1, &in.s_addr, 189 100); 190 } else if (!strcmp(tab->anstype, "AAAA")) { 191 struct in6_addr in6; 192 if (!evutil_inet_pton(AF_INET6, tab->ans, &in6)) { 193 TT_DIE(("Bad AAAA value %s in table", tab->ans)); 194 } 195 evdns_server_request_add_aaaa_reply(req, 196 question, 1, &in6.s6_addr, 100); 197 } else { 198 TT_DIE(("Weird table entry with type '%s'", tab->anstype)); 199 } 200 tt_assert(! evdns_server_request_respond(req, 0)) 201 return; 202 end: 203 tt_want(! evdns_server_request_drop(req)); 204 } 205 206 int 207 regress_dnsserver(struct event_base *base, ev_uint16_t *port, 208 struct regress_dns_server_table *search_table) 209 { 210 dns_port = regress_get_dnsserver(base, port, &dns_sock, 211 regress_dns_server_cb, search_table); 212 return dns_port != NULL; 213 } 214 215 int 216 regress_get_listener_addr(struct evconnlistener *lev, 217 struct sockaddr *sa, ev_socklen_t *socklen) 218 { 219 evutil_socket_t s = evconnlistener_get_fd(lev); 220 if (s <= 0) 221 return -1; 222 return getsockname(s, sa, socklen); 223 } 224
Indexes created Wed Apr 15 00:22:22 UTC 2026