2 * util/net_help.c - implementation of the network helper code
4 * Copyright (c) 2007, NLnet Labs. All rights reserved.
6 * This software is open source.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
15 * Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
19 * Neither the name of the NLNET LABS nor the names of its contributors may
20 * be used to endorse or promote products derived from this software without
21 * specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
29 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
30 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 * Implementation of net_help.h.
41 #include "util/net_help.h"
43 #include "util/data/dname.h"
44 #include "util/module.h"
45 #include "util/regional.h"
46 #include "sldns/parseutil.h"
47 #include "sldns/wire2str.h"
49 #ifdef HAVE_OPENSSL_SSL_H
50 #include <openssl/ssl.h>
52 #ifdef HAVE_OPENSSL_ERR_H
53 #include <openssl/err.h>
56 /** max length of an IP address (the address portion) that we allow */
57 #define MAX_ADDR_STRLEN 128 /* characters */
58 /** default value for EDNS ADVERTISED size */
59 uint16_t EDNS_ADVERTISED_SIZE = 4096;
61 /** minimal responses when positive answer: default is no */
62 int MINIMAL_RESPONSES = 0;
64 /** rrset order roundrobin: default is no */
65 int RRSET_ROUNDROBIN = 0;
67 /* returns true is string addr is an ip6 specced address */
69 str_is_ip6(const char* str)
77 fd_set_nonblock(int s)
81 if((flag = fcntl(s, F_GETFL)) == -1) {
82 log_err("can't fcntl F_GETFL: %s", strerror(errno));
86 if(fcntl(s, F_SETFL, flag) == -1) {
87 log_err("can't fcntl F_SETFL: %s", strerror(errno));
90 #elif defined(HAVE_IOCTLSOCKET)
92 if(ioctlsocket(s, FIONBIO, &on) != 0) {
93 log_err("can't ioctlsocket FIONBIO on: %s",
94 wsa_strerror(WSAGetLastError()));
105 if((flag = fcntl(s, F_GETFL)) == -1) {
106 log_err("cannot fcntl F_GETFL: %s", strerror(errno));
110 if(fcntl(s, F_SETFL, flag) == -1) {
111 log_err("cannot fcntl F_SETFL: %s", strerror(errno));
114 #elif defined(HAVE_IOCTLSOCKET)
115 unsigned long off = 0;
116 if(ioctlsocket(s, FIONBIO, &off) != 0) {
117 if(WSAGetLastError() != WSAEINVAL || verbosity >= 4)
118 log_err("can't ioctlsocket FIONBIO off: %s",
119 wsa_strerror(WSAGetLastError()));
128 if(num == 0) return 1;
129 return (num & (num-1)) == 0;
133 memdup(void* data, size_t len)
136 if(!data) return NULL;
137 if(len == 0) return NULL;
140 memcpy(d, data, len);
145 log_addr(enum verbosity_value v, const char* str,
146 struct sockaddr_storage* addr, socklen_t addrlen)
149 const char* family = "unknown";
151 int af = (int)((struct sockaddr_in*)addr)->sin_family;
152 void* sinaddr = &((struct sockaddr_in*)addr)->sin_addr;
156 case AF_INET: family="ip4"; break;
157 case AF_INET6: family="ip6";
158 sinaddr = &((struct sockaddr_in6*)addr)->sin6_addr;
162 (void)inet_ntop(af, sinaddr, dest,
163 (socklen_t)sizeof(dest));
164 verbose(v, "%s local %s", str, dest);
165 return; /* do not continue and try to get port */
168 if(inet_ntop(af, sinaddr, dest, (socklen_t)sizeof(dest)) == 0) {
169 (void)strlcpy(dest, "(inet_ntop error)", sizeof(dest));
171 dest[sizeof(dest)-1] = 0;
172 port = ntohs(((struct sockaddr_in*)addr)->sin_port);
174 verbose(v, "%s %s %s port %d (len %d)", str, family, dest,
175 (int)port, (int)addrlen);
176 else verbose(v, "%s %s port %d", str, dest, (int)port);
180 extstrtoaddr(const char* str, struct sockaddr_storage* addr,
184 int port = UNBOUND_DNS_PORT;
185 if((s=strchr(str, '@'))) {
186 char buf[MAX_ADDR_STRLEN];
187 if(s-str >= MAX_ADDR_STRLEN) {
190 (void)strlcpy(buf, str, sizeof(buf));
193 if(port == 0 && strcmp(s+1,"0")!=0) {
196 return ipstrtoaddr(buf, port, addr, addrlen);
198 return ipstrtoaddr(str, port, addr, addrlen);
203 ipstrtoaddr(const char* ip, int port, struct sockaddr_storage* addr,
210 char buf[MAX_ADDR_STRLEN];
212 struct sockaddr_in6* sa = (struct sockaddr_in6*)addr;
213 *addrlen = (socklen_t)sizeof(struct sockaddr_in6);
214 memset(sa, 0, *addrlen);
215 sa->sin6_family = AF_INET6;
216 sa->sin6_port = (in_port_t)htons(p);
217 if((s=strchr(ip, '%'))) { /* ip6%interface, rfc 4007 */
218 if(s-ip >= MAX_ADDR_STRLEN)
220 (void)strlcpy(buf, ip, sizeof(buf));
222 sa->sin6_scope_id = (uint32_t)atoi(s+1);
225 if(inet_pton((int)sa->sin6_family, ip, &sa->sin6_addr) <= 0) {
229 struct sockaddr_in* sa = (struct sockaddr_in*)addr;
230 *addrlen = (socklen_t)sizeof(struct sockaddr_in);
231 memset(sa, 0, *addrlen);
232 sa->sin_family = AF_INET;
233 sa->sin_port = (in_port_t)htons(p);
234 if(inet_pton((int)sa->sin_family, ip, &sa->sin_addr) <= 0) {
241 int netblockstrtoaddr(const char* str, int port, struct sockaddr_storage* addr,
242 socklen_t* addrlen, int* net)
245 *net = (str_is_ip6(str)?128:32);
246 if((s=strchr(str, '/'))) {
247 if(atoi(s+1) > *net) {
248 log_err("netblock too large: %s", str);
252 if(*net == 0 && strcmp(s+1, "0") != 0) {
253 log_err("cannot parse netblock: '%s'", str);
256 if(!(s = strdup(str))) {
257 log_err("out of memory");
260 *strchr(s, '/') = '\0';
262 if(!ipstrtoaddr(s?s:str, port, addr, addrlen)) {
264 log_err("cannot parse ip address: '%s'", str);
269 addr_mask(addr, *addrlen, *net);
275 log_nametypeclass(enum verbosity_value v, const char* str, uint8_t* name,
276 uint16_t type, uint16_t dclass)
278 char buf[LDNS_MAX_DOMAINLEN+1];
283 dname_str(name, buf);
284 if(type == LDNS_RR_TYPE_TSIG) ts = "TSIG";
285 else if(type == LDNS_RR_TYPE_IXFR) ts = "IXFR";
286 else if(type == LDNS_RR_TYPE_AXFR) ts = "AXFR";
287 else if(type == LDNS_RR_TYPE_MAILB) ts = "MAILB";
288 else if(type == LDNS_RR_TYPE_MAILA) ts = "MAILA";
289 else if(type == LDNS_RR_TYPE_ANY) ts = "ANY";
290 else if(sldns_rr_descript(type) && sldns_rr_descript(type)->_name)
291 ts = sldns_rr_descript(type)->_name;
293 snprintf(t, sizeof(t), "TYPE%d", (int)type);
296 if(sldns_lookup_by_id(sldns_rr_classes, (int)dclass) &&
297 sldns_lookup_by_id(sldns_rr_classes, (int)dclass)->name)
298 cs = sldns_lookup_by_id(sldns_rr_classes, (int)dclass)->name;
300 snprintf(c, sizeof(c), "CLASS%d", (int)dclass);
303 log_info("%s %s %s %s", str, buf, ts, cs);
306 void log_name_addr(enum verbosity_value v, const char* str, uint8_t* zone,
307 struct sockaddr_storage* addr, socklen_t addrlen)
310 const char* family = "unknown_family ";
311 char namebuf[LDNS_MAX_DOMAINLEN+1];
313 int af = (int)((struct sockaddr_in*)addr)->sin_family;
314 void* sinaddr = &((struct sockaddr_in*)addr)->sin_addr;
318 case AF_INET: family=""; break;
319 case AF_INET6: family="";
320 sinaddr = &((struct sockaddr_in6*)addr)->sin6_addr;
322 case AF_LOCAL: family="local "; break;
325 if(inet_ntop(af, sinaddr, dest, (socklen_t)sizeof(dest)) == 0) {
326 (void)strlcpy(dest, "(inet_ntop error)", sizeof(dest));
328 dest[sizeof(dest)-1] = 0;
329 port = ntohs(((struct sockaddr_in*)addr)->sin_port);
330 dname_str(zone, namebuf);
331 if(af != AF_INET && af != AF_INET6)
332 verbose(v, "%s <%s> %s%s#%d (addrlen %d)",
333 str, namebuf, family, dest, (int)port, (int)addrlen);
334 else verbose(v, "%s <%s> %s%s#%d",
335 str, namebuf, family, dest, (int)port);
338 void log_err_addr(const char* str, const char* err,
339 struct sockaddr_storage* addr, socklen_t addrlen)
343 int af = (int)((struct sockaddr_in*)addr)->sin_family;
344 void* sinaddr = &((struct sockaddr_in*)addr)->sin_addr;
346 sinaddr = &((struct sockaddr_in6*)addr)->sin6_addr;
347 if(inet_ntop(af, sinaddr, dest, (socklen_t)sizeof(dest)) == 0) {
348 (void)strlcpy(dest, "(inet_ntop error)", sizeof(dest));
350 dest[sizeof(dest)-1] = 0;
351 port = ntohs(((struct sockaddr_in*)addr)->sin_port);
353 log_err("%s: %s for %s port %d (len %d)", str, err, dest,
354 (int)port, (int)addrlen);
355 else log_err("%s: %s for %s", str, err, dest);
359 sockaddr_cmp(struct sockaddr_storage* addr1, socklen_t len1,
360 struct sockaddr_storage* addr2, socklen_t len2)
362 struct sockaddr_in* p1_in = (struct sockaddr_in*)addr1;
363 struct sockaddr_in* p2_in = (struct sockaddr_in*)addr2;
364 struct sockaddr_in6* p1_in6 = (struct sockaddr_in6*)addr1;
365 struct sockaddr_in6* p2_in6 = (struct sockaddr_in6*)addr2;
370 log_assert(len1 == len2);
371 if( p1_in->sin_family < p2_in->sin_family)
373 if( p1_in->sin_family > p2_in->sin_family)
375 log_assert( p1_in->sin_family == p2_in->sin_family );
377 if( p1_in->sin_family == AF_INET ) {
378 /* just order it, ntohs not required */
379 if(p1_in->sin_port < p2_in->sin_port)
381 if(p1_in->sin_port > p2_in->sin_port)
383 log_assert(p1_in->sin_port == p2_in->sin_port);
384 return memcmp(&p1_in->sin_addr, &p2_in->sin_addr, INET_SIZE);
385 } else if (p1_in6->sin6_family == AF_INET6) {
386 /* just order it, ntohs not required */
387 if(p1_in6->sin6_port < p2_in6->sin6_port)
389 if(p1_in6->sin6_port > p2_in6->sin6_port)
391 log_assert(p1_in6->sin6_port == p2_in6->sin6_port);
392 return memcmp(&p1_in6->sin6_addr, &p2_in6->sin6_addr,
395 /* eek unknown type, perform this comparison for sanity. */
396 return memcmp(addr1, addr2, len1);
401 sockaddr_cmp_addr(struct sockaddr_storage* addr1, socklen_t len1,
402 struct sockaddr_storage* addr2, socklen_t len2)
404 struct sockaddr_in* p1_in = (struct sockaddr_in*)addr1;
405 struct sockaddr_in* p2_in = (struct sockaddr_in*)addr2;
406 struct sockaddr_in6* p1_in6 = (struct sockaddr_in6*)addr1;
407 struct sockaddr_in6* p2_in6 = (struct sockaddr_in6*)addr2;
412 log_assert(len1 == len2);
413 if( p1_in->sin_family < p2_in->sin_family)
415 if( p1_in->sin_family > p2_in->sin_family)
417 log_assert( p1_in->sin_family == p2_in->sin_family );
419 if( p1_in->sin_family == AF_INET ) {
420 return memcmp(&p1_in->sin_addr, &p2_in->sin_addr, INET_SIZE);
421 } else if (p1_in6->sin6_family == AF_INET6) {
422 return memcmp(&p1_in6->sin6_addr, &p2_in6->sin6_addr,
425 /* eek unknown type, perform this comparison for sanity. */
426 return memcmp(addr1, addr2, len1);
431 addr_is_ip6(struct sockaddr_storage* addr, socklen_t len)
433 if(len == (socklen_t)sizeof(struct sockaddr_in6) &&
434 ((struct sockaddr_in6*)addr)->sin6_family == AF_INET6)
440 addr_mask(struct sockaddr_storage* addr, socklen_t len, int net)
442 uint8_t mask[8] = {0x0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe};
445 if(addr_is_ip6(addr, len)) {
446 s = (uint8_t*)&((struct sockaddr_in6*)addr)->sin6_addr;
449 s = (uint8_t*)&((struct sockaddr_in*)addr)->sin_addr;
454 for(i=net/8+1; i<max/8; i++) {
457 s[net/8] &= mask[net&0x7];
461 addr_in_common(struct sockaddr_storage* addr1, int net1,
462 struct sockaddr_storage* addr2, int net2, socklen_t addrlen)
464 int min = (net1<net2)?net1:net2;
468 if(addr_is_ip6(addr1, addrlen)) {
469 s1 = (uint8_t*)&((struct sockaddr_in6*)addr1)->sin6_addr;
470 s2 = (uint8_t*)&((struct sockaddr_in6*)addr2)->sin6_addr;
473 s1 = (uint8_t*)&((struct sockaddr_in*)addr1)->sin_addr;
474 s2 = (uint8_t*)&((struct sockaddr_in*)addr2)->sin_addr;
477 /* match = bits_in_common(s1, s2, to); */
478 for(i=0; i<to; i++) {
482 uint8_t z = s1[i]^s2[i];
491 if(match > min) match = min;
496 addr_to_str(struct sockaddr_storage* addr, socklen_t addrlen,
497 char* buf, size_t len)
499 int af = (int)((struct sockaddr_in*)addr)->sin_family;
500 void* sinaddr = &((struct sockaddr_in*)addr)->sin_addr;
501 if(addr_is_ip6(addr, addrlen))
502 sinaddr = &((struct sockaddr_in6*)addr)->sin6_addr;
503 if(inet_ntop(af, sinaddr, buf, (socklen_t)len) == 0) {
504 snprintf(buf, len, "(inet_ntop_error)");
509 addr_is_ip4mapped(struct sockaddr_storage* addr, socklen_t addrlen)
511 /* prefix for ipv4 into ipv6 mapping is ::ffff:x.x.x.x */
512 const uint8_t map_prefix[16] =
513 {0,0,0,0, 0,0,0,0, 0,0,0xff,0xff, 0,0,0,0};
515 if(!addr_is_ip6(addr, addrlen))
517 /* s is 16 octet ipv6 address string */
518 s = (uint8_t*)&((struct sockaddr_in6*)addr)->sin6_addr;
519 return (memcmp(s, map_prefix, 12) == 0);
522 int addr_is_broadcast(struct sockaddr_storage* addr, socklen_t addrlen)
524 int af = (int)((struct sockaddr_in*)addr)->sin_family;
525 void* sinaddr = &((struct sockaddr_in*)addr)->sin_addr;
526 return af == AF_INET && addrlen>=(socklen_t)sizeof(struct sockaddr_in)
527 && memcmp(sinaddr, "\377\377\377\377", 4) == 0;
530 int addr_is_any(struct sockaddr_storage* addr, socklen_t addrlen)
532 int af = (int)((struct sockaddr_in*)addr)->sin_family;
533 void* sinaddr = &((struct sockaddr_in*)addr)->sin_addr;
534 void* sin6addr = &((struct sockaddr_in6*)addr)->sin6_addr;
535 if(af == AF_INET && addrlen>=(socklen_t)sizeof(struct sockaddr_in)
536 && memcmp(sinaddr, "\000\000\000\000", 4) == 0)
538 else if(af==AF_INET6 && addrlen>=(socklen_t)sizeof(struct sockaddr_in6)
539 && memcmp(sin6addr, "\000\000\000\000\000\000\000\000"
540 "\000\000\000\000\000\000\000\000", 16) == 0)
545 void sock_list_insert(struct sock_list** list, struct sockaddr_storage* addr,
546 socklen_t len, struct regional* region)
548 struct sock_list* add = (struct sock_list*)regional_alloc(region,
549 sizeof(*add) - sizeof(add->addr) + (size_t)len);
551 log_err("out of memory in socketlist insert");
558 if(len) memmove(&add->addr, addr, len);
561 void sock_list_prepend(struct sock_list** list, struct sock_list* add)
563 struct sock_list* last = add;
572 int sock_list_find(struct sock_list* list, struct sockaddr_storage* addr,
576 if(len == list->len) {
577 if(len == 0 || sockaddr_cmp_addr(addr, len,
578 &list->addr, list->len) == 0)
586 void sock_list_merge(struct sock_list** list, struct regional* region,
587 struct sock_list* add)
590 for(p=add; p; p=p->next) {
591 if(!sock_list_find(*list, &p->addr, p->len))
592 sock_list_insert(list, &p->addr, p->len, region);
597 log_crypto_err(const char* str)
600 /* error:[error code]:[library name]:[function name]:[reason string] */
603 ERR_error_string_n(ERR_get_error(), buf, sizeof(buf));
604 log_err("%s crypto %s", str, buf);
605 while( (e=ERR_get_error()) ) {
606 ERR_error_string_n(e, buf, sizeof(buf));
607 log_err("and additionally crypto %s", buf);
611 #endif /* HAVE_SSL */
615 listen_sslctx_setup(void* ctxt)
618 SSL_CTX* ctx = (SSL_CTX*)ctxt;
619 /* no SSLv2, SSLv3 because has defects */
620 if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) & SSL_OP_NO_SSLv2)
622 log_crypto_err("could not set SSL_OP_NO_SSLv2");
625 if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3) & SSL_OP_NO_SSLv3)
627 log_crypto_err("could not set SSL_OP_NO_SSLv3");
630 #if defined(SSL_OP_NO_TLSv1) && defined(SSL_OP_NO_TLSv1_1)
631 /* if we have tls 1.1 disable 1.0 */
632 if((SSL_CTX_set_options(ctx, SSL_OP_NO_TLSv1) & SSL_OP_NO_TLSv1)
634 log_crypto_err("could not set SSL_OP_NO_TLSv1");
638 #if defined(SSL_OP_NO_TLSv1_1) && defined(SSL_OP_NO_TLSv1_2)
639 /* if we have tls 1.2 disable 1.1 */
640 if((SSL_CTX_set_options(ctx, SSL_OP_NO_TLSv1_1) & SSL_OP_NO_TLSv1_1)
641 != SSL_OP_NO_TLSv1_1){
642 log_crypto_err("could not set SSL_OP_NO_TLSv1_1");
646 #if defined(SHA256_DIGEST_LENGTH) && defined(USE_ECDSA)
647 /* if we have sha256, set the cipher list to have no known vulns */
648 if(!SSL_CTX_set_cipher_list(ctx, "ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256"))
649 log_crypto_err("could not set cipher list with SSL_CTX_set_cipher_list");
652 if((SSL_CTX_set_options(ctx, SSL_OP_CIPHER_SERVER_PREFERENCE) &
653 SSL_OP_CIPHER_SERVER_PREFERENCE) !=
654 SSL_OP_CIPHER_SERVER_PREFERENCE) {
655 log_crypto_err("could not set SSL_OP_CIPHER_SERVER_PREFERENCE");
659 #ifdef HAVE_SSL_CTX_SET_SECURITY_LEVEL
660 SSL_CTX_set_security_level(ctx, 0);
664 #endif /* HAVE_SSL */
669 listen_sslctx_setup_2(void* ctxt)
672 SSL_CTX* ctx = (SSL_CTX*)ctxt;
674 #if HAVE_DECL_SSL_CTX_SET_ECDH_AUTO
675 if(!SSL_CTX_set_ecdh_auto(ctx,1)) {
676 log_crypto_err("Error in SSL_CTX_ecdh_auto, not enabling ECDHE");
678 #elif defined(USE_ECDSA)
680 EC_KEY *ecdh = EC_KEY_new_by_curve_name (NID_X9_62_prime256v1);
682 log_crypto_err("could not find p256, not enabling ECDHE");
684 if (1 != SSL_CTX_set_tmp_ecdh (ctx, ecdh)) {
685 log_crypto_err("Error in SSL_CTX_set_tmp_ecdh, not enabling ECDHE");
693 #endif /* HAVE_SSL */
696 void* listen_sslctx_create(char* key, char* pem, char* verifypem)
699 SSL_CTX* ctx = SSL_CTX_new(SSLv23_server_method());
701 log_crypto_err("could not SSL_CTX_new");
704 if(!listen_sslctx_setup(ctx)) {
708 if(!SSL_CTX_use_certificate_chain_file(ctx, pem)) {
709 log_err("error for cert file: %s", pem);
710 log_crypto_err("error in SSL_CTX use_certificate_chain_file");
714 if(!SSL_CTX_use_PrivateKey_file(ctx, key, SSL_FILETYPE_PEM)) {
715 log_err("error for private key file: %s", key);
716 log_crypto_err("Error in SSL_CTX use_PrivateKey_file");
720 if(!SSL_CTX_check_private_key(ctx)) {
721 log_err("error for key file: %s", key);
722 log_crypto_err("Error in SSL_CTX check_private_key");
726 listen_sslctx_setup_2(ctx);
727 if(verifypem && verifypem[0]) {
728 if(!SSL_CTX_load_verify_locations(ctx, verifypem, NULL)) {
729 log_crypto_err("Error in SSL_CTX verify locations");
733 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(
735 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL);
739 (void)key; (void)pem; (void)verifypem;
744 void* connect_sslctx_create(char* key, char* pem, char* verifypem)
747 SSL_CTX* ctx = SSL_CTX_new(SSLv23_client_method());
749 log_crypto_err("could not allocate SSL_CTX pointer");
752 if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) & SSL_OP_NO_SSLv2)
753 != SSL_OP_NO_SSLv2) {
754 log_crypto_err("could not set SSL_OP_NO_SSLv2");
758 if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3) & SSL_OP_NO_SSLv3)
759 != SSL_OP_NO_SSLv3) {
760 log_crypto_err("could not set SSL_OP_NO_SSLv3");
765 if(!SSL_CTX_use_certificate_chain_file(ctx, pem)) {
766 log_err("error in client certificate %s", pem);
767 log_crypto_err("error in certificate file");
771 if(!SSL_CTX_use_PrivateKey_file(ctx, key, SSL_FILETYPE_PEM)) {
772 log_err("error in client private key %s", key);
773 log_crypto_err("error in key file");
777 if(!SSL_CTX_check_private_key(ctx)) {
778 log_err("error in client key %s", key);
779 log_crypto_err("error in SSL_CTX_check_private_key");
784 if(verifypem && verifypem[0]) {
785 if(!SSL_CTX_load_verify_locations(ctx, verifypem, NULL)) {
786 log_crypto_err("error in SSL_CTX verify");
790 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL);
794 (void)key; (void)pem; (void)verifypem;
799 void* incoming_ssl_fd(void* sslctx, int fd)
802 SSL* ssl = SSL_new((SSL_CTX*)sslctx);
804 log_crypto_err("could not SSL_new");
807 SSL_set_accept_state(ssl);
808 (void)SSL_set_mode(ssl, SSL_MODE_AUTO_RETRY);
809 if(!SSL_set_fd(ssl, fd)) {
810 log_crypto_err("could not SSL_set_fd");
816 (void)sslctx; (void)fd;
821 void* outgoing_ssl_fd(void* sslctx, int fd)
824 SSL* ssl = SSL_new((SSL_CTX*)sslctx);
826 log_crypto_err("could not SSL_new");
829 SSL_set_connect_state(ssl);
830 (void)SSL_set_mode(ssl, SSL_MODE_AUTO_RETRY);
831 if(!SSL_set_fd(ssl, fd)) {
832 log_crypto_err("could not SSL_set_fd");
838 (void)sslctx; (void)fd;
843 #if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED) && defined(CRYPTO_LOCK) && OPENSSL_VERSION_NUMBER < 0x10100000L
844 /** global lock list for openssl locks */
845 static lock_basic_type *ub_openssl_locks = NULL;
847 /** callback that gets thread id for openssl */
849 ub_crypto_id_cb(void)
851 return (unsigned long)log_thread_get();
855 ub_crypto_lock_cb(int mode, int type, const char *ATTR_UNUSED(file),
856 int ATTR_UNUSED(line))
858 if((mode&CRYPTO_LOCK)) {
859 lock_basic_lock(&ub_openssl_locks[type]);
861 lock_basic_unlock(&ub_openssl_locks[type]);
864 #endif /* OPENSSL_THREADS */
866 int ub_openssl_lock_init(void)
868 #if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED) && defined(CRYPTO_LOCK) && OPENSSL_VERSION_NUMBER < 0x10100000L
870 ub_openssl_locks = (lock_basic_type*)reallocarray(
871 NULL, (size_t)CRYPTO_num_locks(), sizeof(lock_basic_type));
872 if(!ub_openssl_locks)
874 for(i=0; i<CRYPTO_num_locks(); i++) {
875 lock_basic_init(&ub_openssl_locks[i]);
877 CRYPTO_set_id_callback(&ub_crypto_id_cb);
878 CRYPTO_set_locking_callback(&ub_crypto_lock_cb);
879 #endif /* OPENSSL_THREADS */
883 void ub_openssl_lock_delete(void)
885 #if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED) && defined(CRYPTO_LOCK) && OPENSSL_VERSION_NUMBER < 0x10100000L
887 if(!ub_openssl_locks)
889 CRYPTO_set_id_callback(NULL);
890 CRYPTO_set_locking_callback(NULL);
891 for(i=0; i<CRYPTO_num_locks(); i++) {
892 lock_basic_destroy(&ub_openssl_locks[i]);
894 free(ub_openssl_locks);
895 #endif /* OPENSSL_THREADS */