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 "util/config_file.h"
47 #include "sldns/parseutil.h"
48 #include "sldns/wire2str.h"
50 #ifdef HAVE_OPENSSL_SSL_H
51 #include <openssl/ssl.h>
52 #include <openssl/evp.h>
53 #include <openssl/rand.h>
55 #ifdef HAVE_OPENSSL_ERR_H
56 #include <openssl/err.h>
58 #ifdef HAVE_OPENSSL_CORE_NAMES_H
59 #include <openssl/core_names.h>
65 /** max length of an IP address (the address portion) that we allow */
66 #define MAX_ADDR_STRLEN 128 /* characters */
67 /** default value for EDNS ADVERTISED size */
68 uint16_t EDNS_ADVERTISED_SIZE = 4096;
70 /** minimal responses when positive answer: default is no */
71 int MINIMAL_RESPONSES = 0;
73 /** rrset order roundrobin: default is yes */
74 int RRSET_ROUNDROBIN = 1;
76 /** log tag queries with name instead of 'info' for filtering */
77 int LOG_TAG_QUERYREPLY = 0;
79 static struct tls_session_ticket_key {
80 unsigned char *key_name;
81 unsigned char *aes_key;
82 unsigned char *hmac_key;
86 * callback TLS session ticket encrypt and decrypt
87 * For use with SSL_CTX_set_tlsext_ticket_key_cb or
88 * SSL_CTX_set_tlsext_ticket_key_evp_cb
89 * @param s: the SSL_CTX to use (from connect_sslctx_create())
90 * @param key_name: secret name, 16 bytes
91 * @param iv: up to EVP_MAX_IV_LENGTH.
92 * @param evp_ctx: the evp cipher context, function sets this.
93 * @param hmac_ctx: the hmac context, function sets this.
94 * with ..key_cb it is of type HMAC_CTX*
95 * with ..key_evp_cb it is of type EVP_MAC_CTX*
96 * @param enc: 1 is encrypt, 0 is decrypt
97 * @return 0 on no ticket, 1 for okay, and 2 for okay but renew the ticket
98 * (the ticket is decrypt only). and <0 for failures.
101 int tls_session_ticket_key_cb(SSL *s, unsigned char* key_name,
102 unsigned char* iv, EVP_CIPHER_CTX *evp_ctx,
103 #ifdef HAVE_SSL_CTX_SET_TLSEXT_TICKET_KEY_EVP_CB
104 EVP_MAC_CTX *hmac_ctx,
109 #endif /* HAVE_SSL */
111 /* returns true is string addr is an ip6 specced address */
113 str_is_ip6(const char* str)
121 fd_set_nonblock(int s)
125 if((flag = fcntl(s, F_GETFL)) == -1) {
126 log_err("can't fcntl F_GETFL: %s", strerror(errno));
130 if(fcntl(s, F_SETFL, flag) == -1) {
131 log_err("can't fcntl F_SETFL: %s", strerror(errno));
134 #elif defined(HAVE_IOCTLSOCKET)
135 unsigned long on = 1;
136 if(ioctlsocket(s, FIONBIO, &on) != 0) {
137 log_err("can't ioctlsocket FIONBIO on: %s",
138 wsa_strerror(WSAGetLastError()));
149 if((flag = fcntl(s, F_GETFL)) == -1) {
150 log_err("cannot fcntl F_GETFL: %s", strerror(errno));
154 if(fcntl(s, F_SETFL, flag) == -1) {
155 log_err("cannot fcntl F_SETFL: %s", strerror(errno));
158 #elif defined(HAVE_IOCTLSOCKET)
159 unsigned long off = 0;
160 if(ioctlsocket(s, FIONBIO, &off) != 0) {
161 if(WSAGetLastError() != WSAEINVAL || verbosity >= 4)
162 log_err("can't ioctlsocket FIONBIO off: %s",
163 wsa_strerror(WSAGetLastError()));
172 if(num == 0) return 1;
173 return (num & (num-1)) == 0;
177 memdup(void* data, size_t len)
180 if(!data) return NULL;
181 if(len == 0) return NULL;
184 memcpy(d, data, len);
189 log_addr(enum verbosity_value v, const char* str,
190 struct sockaddr_storage* addr, socklen_t addrlen)
193 const char* family = "unknown";
195 int af = (int)((struct sockaddr_in*)addr)->sin_family;
196 void* sinaddr = &((struct sockaddr_in*)addr)->sin_addr;
200 case AF_INET: family="ip4"; break;
201 case AF_INET6: family="ip6";
202 sinaddr = &((struct sockaddr_in6*)addr)->sin6_addr;
206 (void)inet_ntop(af, sinaddr, dest,
207 (socklen_t)sizeof(dest));
208 verbose(v, "%s local %s", str, dest);
209 return; /* do not continue and try to get port */
212 if(inet_ntop(af, sinaddr, dest, (socklen_t)sizeof(dest)) == 0) {
213 (void)strlcpy(dest, "(inet_ntop error)", sizeof(dest));
215 dest[sizeof(dest)-1] = 0;
216 port = ntohs(((struct sockaddr_in*)addr)->sin_port);
218 verbose(v, "%s %s %s port %d (len %d)", str, family, dest,
219 (int)port, (int)addrlen);
220 else verbose(v, "%s %s port %d", str, dest, (int)port);
224 extstrtoaddr(const char* str, struct sockaddr_storage* addr,
228 int port = UNBOUND_DNS_PORT;
229 if((s=strchr(str, '@'))) {
230 char buf[MAX_ADDR_STRLEN];
231 if(s-str >= MAX_ADDR_STRLEN) {
234 (void)strlcpy(buf, str, sizeof(buf));
237 if(port == 0 && strcmp(s+1,"0")!=0) {
240 return ipstrtoaddr(buf, port, addr, addrlen);
242 return ipstrtoaddr(str, port, addr, addrlen);
247 ipstrtoaddr(const char* ip, int port, struct sockaddr_storage* addr,
254 char buf[MAX_ADDR_STRLEN];
256 struct sockaddr_in6* sa = (struct sockaddr_in6*)addr;
257 *addrlen = (socklen_t)sizeof(struct sockaddr_in6);
258 memset(sa, 0, *addrlen);
259 sa->sin6_family = AF_INET6;
260 sa->sin6_port = (in_port_t)htons(p);
261 if((s=strchr(ip, '%'))) { /* ip6%interface, rfc 4007 */
262 if(s-ip >= MAX_ADDR_STRLEN)
264 (void)strlcpy(buf, ip, sizeof(buf));
266 sa->sin6_scope_id = (uint32_t)atoi(s+1);
269 if(inet_pton((int)sa->sin6_family, ip, &sa->sin6_addr) <= 0) {
273 struct sockaddr_in* sa = (struct sockaddr_in*)addr;
274 *addrlen = (socklen_t)sizeof(struct sockaddr_in);
275 memset(sa, 0, *addrlen);
276 sa->sin_family = AF_INET;
277 sa->sin_port = (in_port_t)htons(p);
278 if(inet_pton((int)sa->sin_family, ip, &sa->sin_addr) <= 0) {
285 int netblockstrtoaddr(const char* str, int port, struct sockaddr_storage* addr,
286 socklen_t* addrlen, int* net)
290 *net = (str_is_ip6(str)?128:32);
291 if((s=strchr(str, '/'))) {
292 if(atoi(s+1) > *net) {
293 log_err("netblock too large: %s", str);
297 if(*net == 0 && strcmp(s+1, "0") != 0) {
298 log_err("cannot parse netblock: '%s'", str);
301 strlcpy(buf, str, sizeof(buf));
302 s = strchr(buf, '/');
306 if(!ipstrtoaddr(s?s:str, port, addr, addrlen)) {
307 log_err("cannot parse ip address: '%s'", str);
311 addr_mask(addr, *addrlen, *net);
316 /* RPZ format address dname to network byte order address */
317 static int ipdnametoaddr(uint8_t* dname, size_t dnamelen,
318 struct sockaddr_storage* addr, socklen_t* addrlen, int* af)
321 size_t dnamelabs = dname_count_labels(dname);
329 /* need 1 byte for label length */
334 dname_has_label(dname, dnamelen, (uint8_t*)"\002zz")) {
339 i = (*af == AF_INET) ? 3 : 15;
340 if(*af == AF_INET6) {
341 struct sockaddr_in6* sa = (struct sockaddr_in6*)addr;
342 *addrlen = (socklen_t)sizeof(struct sockaddr_in6);
343 memset(sa, 0, *addrlen);
344 sa->sin6_family = AF_INET6;
345 ia = (uint8_t*)&sa->sin6_addr;
347 struct sockaddr_in* sa = (struct sockaddr_in*)addr;
348 *addrlen = (socklen_t)sizeof(struct sockaddr_in);
349 memset(sa, 0, *addrlen);
350 sa->sin_family = AF_INET;
351 ia = (uint8_t*)&sa->sin_addr;
353 while(lablen && i >= 0 && len <= dnamelen) {
354 char buff[LDNS_MAX_LABELLEN+1];
355 uint16_t chunk; /* big enough to not overflow on IPv6 hextet */
356 if((*af == AF_INET && (lablen > 3 || dnamelabs > 6)) ||
357 (*af == AF_INET6 && (lablen > 4 || dnamelabs > 10))) {
360 if(memcmp(dname, "zz", 2) == 0 && *af == AF_INET6) {
361 /* Add one or more 0 labels. Address is initialised at
362 * 0, so just skip the zero part. */
363 int zl = 11 - dnamelabs;
369 memcpy(buff, dname, lablen);
371 chunk = strtol(buff, &e, (*af == AF_INET) ? 10 : 16);
372 if(!e || *e != '\0' || (*af == AF_INET && chunk > 255))
375 log_assert(i < 4 && i >= 0);
376 ia[i] = (uint8_t)chunk;
379 log_assert(i < 16 && i >= 1);
380 /* ia in network byte order */
381 ia[i-1] = (uint8_t)(chunk >> 8);
382 ia[i] = (uint8_t)(chunk & 0x00FF);
391 /* input too short */
396 int netblockdnametoaddr(uint8_t* dname, size_t dnamelen,
397 struct sockaddr_storage* addr, socklen_t* addrlen, int* net, int* af)
399 char buff[3 /* 3 digit netblock */ + 1];
401 if(dnamelen < 1 || *dname > 3)
402 /* netblock invalid */
406 if(dnamelen < 1 + nlablen)
409 memcpy(buff, dname+1, nlablen);
410 buff[nlablen] = '\0';
412 if(*net == 0 && strcmp(buff, "0") != 0)
416 if(!ipdnametoaddr(dname, dnamelen-1-nlablen, addr, addrlen, af))
418 if((*af == AF_INET6 && *net > 128) || (*af == AF_INET && *net > 32))
423 int authextstrtoaddr(char* str, struct sockaddr_storage* addr,
424 socklen_t* addrlen, char** auth_name)
427 int port = UNBOUND_DNS_PORT;
428 if((s=strchr(str, '@'))) {
429 char buf[MAX_ADDR_STRLEN];
430 size_t len = (size_t)(s-str);
431 char* hash = strchr(s+1, '#');
437 if(len >= MAX_ADDR_STRLEN) {
440 (void)strlcpy(buf, str, sizeof(buf));
444 if(!hash && strcmp(s+1,"0")!=0)
446 if(hash && strncmp(s+1,"0#",2)!=0)
449 return ipstrtoaddr(buf, port, addr, addrlen);
451 if((s=strchr(str, '#'))) {
452 char buf[MAX_ADDR_STRLEN];
453 size_t len = (size_t)(s-str);
454 if(len >= MAX_ADDR_STRLEN) {
457 (void)strlcpy(buf, str, sizeof(buf));
459 port = UNBOUND_DNS_OVER_TLS_PORT;
461 return ipstrtoaddr(buf, port, addr, addrlen);
464 return ipstrtoaddr(str, port, addr, addrlen);
467 /** store port number into sockaddr structure */
469 sockaddr_store_port(struct sockaddr_storage* addr, socklen_t addrlen, int port)
471 if(addr_is_ip6(addr, addrlen)) {
472 struct sockaddr_in6* sa = (struct sockaddr_in6*)addr;
473 sa->sin6_port = (in_port_t)htons((uint16_t)port);
475 struct sockaddr_in* sa = (struct sockaddr_in*)addr;
476 sa->sin_port = (in_port_t)htons((uint16_t)port);
481 log_nametypeclass(enum verbosity_value v, const char* str, uint8_t* name,
482 uint16_t type, uint16_t dclass)
484 char buf[LDNS_MAX_DOMAINLEN+1];
489 dname_str(name, buf);
490 if(type == LDNS_RR_TYPE_TSIG) ts = "TSIG";
491 else if(type == LDNS_RR_TYPE_IXFR) ts = "IXFR";
492 else if(type == LDNS_RR_TYPE_AXFR) ts = "AXFR";
493 else if(type == LDNS_RR_TYPE_MAILB) ts = "MAILB";
494 else if(type == LDNS_RR_TYPE_MAILA) ts = "MAILA";
495 else if(type == LDNS_RR_TYPE_ANY) ts = "ANY";
496 else if(sldns_rr_descript(type) && sldns_rr_descript(type)->_name)
497 ts = sldns_rr_descript(type)->_name;
499 snprintf(t, sizeof(t), "TYPE%d", (int)type);
502 if(sldns_lookup_by_id(sldns_rr_classes, (int)dclass) &&
503 sldns_lookup_by_id(sldns_rr_classes, (int)dclass)->name)
504 cs = sldns_lookup_by_id(sldns_rr_classes, (int)dclass)->name;
506 snprintf(c, sizeof(c), "CLASS%d", (int)dclass);
509 log_info("%s %s %s %s", str, buf, ts, cs);
513 log_query_in(const char* str, uint8_t* name, uint16_t type, uint16_t dclass)
515 char buf[LDNS_MAX_DOMAINLEN+1];
518 dname_str(name, buf);
519 if(type == LDNS_RR_TYPE_TSIG) ts = "TSIG";
520 else if(type == LDNS_RR_TYPE_IXFR) ts = "IXFR";
521 else if(type == LDNS_RR_TYPE_AXFR) ts = "AXFR";
522 else if(type == LDNS_RR_TYPE_MAILB) ts = "MAILB";
523 else if(type == LDNS_RR_TYPE_MAILA) ts = "MAILA";
524 else if(type == LDNS_RR_TYPE_ANY) ts = "ANY";
525 else if(sldns_rr_descript(type) && sldns_rr_descript(type)->_name)
526 ts = sldns_rr_descript(type)->_name;
528 snprintf(t, sizeof(t), "TYPE%d", (int)type);
531 if(sldns_lookup_by_id(sldns_rr_classes, (int)dclass) &&
532 sldns_lookup_by_id(sldns_rr_classes, (int)dclass)->name)
533 cs = sldns_lookup_by_id(sldns_rr_classes, (int)dclass)->name;
535 snprintf(c, sizeof(c), "CLASS%d", (int)dclass);
538 if(LOG_TAG_QUERYREPLY)
539 log_query("%s %s %s %s", str, buf, ts, cs);
540 else log_info("%s %s %s %s", str, buf, ts, cs);
543 void log_name_addr(enum verbosity_value v, const char* str, uint8_t* zone,
544 struct sockaddr_storage* addr, socklen_t addrlen)
547 const char* family = "unknown_family ";
548 char namebuf[LDNS_MAX_DOMAINLEN+1];
550 int af = (int)((struct sockaddr_in*)addr)->sin_family;
551 void* sinaddr = &((struct sockaddr_in*)addr)->sin_addr;
555 case AF_INET: family=""; break;
556 case AF_INET6: family="";
557 sinaddr = &((struct sockaddr_in6*)addr)->sin6_addr;
559 case AF_LOCAL: family="local "; break;
562 if(inet_ntop(af, sinaddr, dest, (socklen_t)sizeof(dest)) == 0) {
563 (void)strlcpy(dest, "(inet_ntop error)", sizeof(dest));
565 dest[sizeof(dest)-1] = 0;
566 port = ntohs(((struct sockaddr_in*)addr)->sin_port);
567 dname_str(zone, namebuf);
568 if(af != AF_INET && af != AF_INET6)
569 verbose(v, "%s <%s> %s%s#%d (addrlen %d)",
570 str, namebuf, family, dest, (int)port, (int)addrlen);
571 else verbose(v, "%s <%s> %s%s#%d",
572 str, namebuf, family, dest, (int)port);
575 void log_err_addr(const char* str, const char* err,
576 struct sockaddr_storage* addr, socklen_t addrlen)
580 int af = (int)((struct sockaddr_in*)addr)->sin_family;
581 void* sinaddr = &((struct sockaddr_in*)addr)->sin_addr;
583 sinaddr = &((struct sockaddr_in6*)addr)->sin6_addr;
584 if(inet_ntop(af, sinaddr, dest, (socklen_t)sizeof(dest)) == 0) {
585 (void)strlcpy(dest, "(inet_ntop error)", sizeof(dest));
587 dest[sizeof(dest)-1] = 0;
588 port = ntohs(((struct sockaddr_in*)addr)->sin_port);
590 log_err("%s: %s for %s port %d (len %d)", str, err, dest,
591 (int)port, (int)addrlen);
592 else log_err("%s: %s for %s port %d", str, err, dest, (int)port);
596 sockaddr_cmp(struct sockaddr_storage* addr1, socklen_t len1,
597 struct sockaddr_storage* addr2, socklen_t len2)
599 struct sockaddr_in* p1_in = (struct sockaddr_in*)addr1;
600 struct sockaddr_in* p2_in = (struct sockaddr_in*)addr2;
601 struct sockaddr_in6* p1_in6 = (struct sockaddr_in6*)addr1;
602 struct sockaddr_in6* p2_in6 = (struct sockaddr_in6*)addr2;
607 log_assert(len1 == len2);
608 if( p1_in->sin_family < p2_in->sin_family)
610 if( p1_in->sin_family > p2_in->sin_family)
612 log_assert( p1_in->sin_family == p2_in->sin_family );
614 if( p1_in->sin_family == AF_INET ) {
615 /* just order it, ntohs not required */
616 if(p1_in->sin_port < p2_in->sin_port)
618 if(p1_in->sin_port > p2_in->sin_port)
620 log_assert(p1_in->sin_port == p2_in->sin_port);
621 return memcmp(&p1_in->sin_addr, &p2_in->sin_addr, INET_SIZE);
622 } else if (p1_in6->sin6_family == AF_INET6) {
623 /* just order it, ntohs not required */
624 if(p1_in6->sin6_port < p2_in6->sin6_port)
626 if(p1_in6->sin6_port > p2_in6->sin6_port)
628 log_assert(p1_in6->sin6_port == p2_in6->sin6_port);
629 return memcmp(&p1_in6->sin6_addr, &p2_in6->sin6_addr,
632 /* eek unknown type, perform this comparison for sanity. */
633 return memcmp(addr1, addr2, len1);
638 sockaddr_cmp_addr(struct sockaddr_storage* addr1, socklen_t len1,
639 struct sockaddr_storage* addr2, socklen_t len2)
641 struct sockaddr_in* p1_in = (struct sockaddr_in*)addr1;
642 struct sockaddr_in* p2_in = (struct sockaddr_in*)addr2;
643 struct sockaddr_in6* p1_in6 = (struct sockaddr_in6*)addr1;
644 struct sockaddr_in6* p2_in6 = (struct sockaddr_in6*)addr2;
649 log_assert(len1 == len2);
650 if( p1_in->sin_family < p2_in->sin_family)
652 if( p1_in->sin_family > p2_in->sin_family)
654 log_assert( p1_in->sin_family == p2_in->sin_family );
656 if( p1_in->sin_family == AF_INET ) {
657 return memcmp(&p1_in->sin_addr, &p2_in->sin_addr, INET_SIZE);
658 } else if (p1_in6->sin6_family == AF_INET6) {
659 return memcmp(&p1_in6->sin6_addr, &p2_in6->sin6_addr,
662 /* eek unknown type, perform this comparison for sanity. */
663 return memcmp(addr1, addr2, len1);
668 addr_is_ip6(struct sockaddr_storage* addr, socklen_t len)
670 if(len == (socklen_t)sizeof(struct sockaddr_in6) &&
671 ((struct sockaddr_in6*)addr)->sin6_family == AF_INET6)
677 addr_mask(struct sockaddr_storage* addr, socklen_t len, int net)
679 uint8_t mask[8] = {0x0, 0x80, 0xc0, 0xe0, 0xf0, 0xf8, 0xfc, 0xfe};
682 if(addr_is_ip6(addr, len)) {
683 s = (uint8_t*)&((struct sockaddr_in6*)addr)->sin6_addr;
686 s = (uint8_t*)&((struct sockaddr_in*)addr)->sin_addr;
691 for(i=net/8+1; i<max/8; i++) {
694 s[net/8] &= mask[net&0x7];
698 addr_in_common(struct sockaddr_storage* addr1, int net1,
699 struct sockaddr_storage* addr2, int net2, socklen_t addrlen)
701 int min = (net1<net2)?net1:net2;
705 if(addr_is_ip6(addr1, addrlen)) {
706 s1 = (uint8_t*)&((struct sockaddr_in6*)addr1)->sin6_addr;
707 s2 = (uint8_t*)&((struct sockaddr_in6*)addr2)->sin6_addr;
710 s1 = (uint8_t*)&((struct sockaddr_in*)addr1)->sin_addr;
711 s2 = (uint8_t*)&((struct sockaddr_in*)addr2)->sin_addr;
714 /* match = bits_in_common(s1, s2, to); */
715 for(i=0; i<to; i++) {
719 uint8_t z = s1[i]^s2[i];
728 if(match > min) match = min;
733 addr_to_str(struct sockaddr_storage* addr, socklen_t addrlen,
734 char* buf, size_t len)
736 int af = (int)((struct sockaddr_in*)addr)->sin_family;
737 void* sinaddr = &((struct sockaddr_in*)addr)->sin_addr;
738 if(addr_is_ip6(addr, addrlen))
739 sinaddr = &((struct sockaddr_in6*)addr)->sin6_addr;
740 if(inet_ntop(af, sinaddr, buf, (socklen_t)len) == 0) {
741 snprintf(buf, len, "(inet_ntop_error)");
746 addr_is_ip4mapped(struct sockaddr_storage* addr, socklen_t addrlen)
748 /* prefix for ipv4 into ipv6 mapping is ::ffff:x.x.x.x */
749 const uint8_t map_prefix[16] =
750 {0,0,0,0, 0,0,0,0, 0,0,0xff,0xff, 0,0,0,0};
752 if(!addr_is_ip6(addr, addrlen))
754 /* s is 16 octet ipv6 address string */
755 s = (uint8_t*)&((struct sockaddr_in6*)addr)->sin6_addr;
756 return (memcmp(s, map_prefix, 12) == 0);
759 int addr_is_broadcast(struct sockaddr_storage* addr, socklen_t addrlen)
761 int af = (int)((struct sockaddr_in*)addr)->sin_family;
762 void* sinaddr = &((struct sockaddr_in*)addr)->sin_addr;
763 return af == AF_INET && addrlen>=(socklen_t)sizeof(struct sockaddr_in)
764 && memcmp(sinaddr, "\377\377\377\377", 4) == 0;
767 int addr_is_any(struct sockaddr_storage* addr, socklen_t addrlen)
769 int af = (int)((struct sockaddr_in*)addr)->sin_family;
770 void* sinaddr = &((struct sockaddr_in*)addr)->sin_addr;
771 void* sin6addr = &((struct sockaddr_in6*)addr)->sin6_addr;
772 if(af == AF_INET && addrlen>=(socklen_t)sizeof(struct sockaddr_in)
773 && memcmp(sinaddr, "\000\000\000\000", 4) == 0)
775 else if(af==AF_INET6 && addrlen>=(socklen_t)sizeof(struct sockaddr_in6)
776 && memcmp(sin6addr, "\000\000\000\000\000\000\000\000"
777 "\000\000\000\000\000\000\000\000", 16) == 0)
782 void sock_list_insert(struct sock_list** list, struct sockaddr_storage* addr,
783 socklen_t len, struct regional* region)
785 struct sock_list* add = (struct sock_list*)regional_alloc(region,
786 sizeof(*add) - sizeof(add->addr) + (size_t)len);
788 log_err("out of memory in socketlist insert");
795 if(len) memmove(&add->addr, addr, len);
798 void sock_list_prepend(struct sock_list** list, struct sock_list* add)
800 struct sock_list* last = add;
809 int sock_list_find(struct sock_list* list, struct sockaddr_storage* addr,
813 if(len == list->len) {
814 if(len == 0 || sockaddr_cmp_addr(addr, len,
815 &list->addr, list->len) == 0)
823 void sock_list_merge(struct sock_list** list, struct regional* region,
824 struct sock_list* add)
827 for(p=add; p; p=p->next) {
828 if(!sock_list_find(*list, &p->addr, p->len))
829 sock_list_insert(list, &p->addr, p->len, region);
834 log_crypto_err(const char* str)
837 log_crypto_err_code(str, ERR_get_error());
840 #endif /* HAVE_SSL */
843 void log_crypto_err_code(const char* str, unsigned long err)
846 /* error:[error code]:[library name]:[function name]:[reason string] */
849 ERR_error_string_n(err, buf, sizeof(buf));
850 log_err("%s crypto %s", str, buf);
851 while( (e=ERR_get_error()) ) {
852 ERR_error_string_n(e, buf, sizeof(buf));
853 log_err("and additionally crypto %s", buf);
858 #endif /* HAVE_SSL */
862 /** log certificate details */
864 log_cert(unsigned level, const char* str, void* cert)
870 if(verbosity < level) return;
871 bio = BIO_new(BIO_s_mem());
873 X509_print_ex(bio, (X509*)cert, 0, (unsigned long)-1
874 ^(X509_FLAG_NO_SUBJECT
875 |X509_FLAG_NO_ISSUER|X509_FLAG_NO_VALIDITY
876 |X509_FLAG_NO_EXTENSIONS|X509_FLAG_NO_AUX
877 |X509_FLAG_NO_ATTRIBUTES));
878 BIO_write(bio, &nul, (int)sizeof(nul));
879 len = BIO_get_mem_data(bio, &pp);
881 verbose(level, "%s: \n%s", str, pp);
885 #endif /* HAVE_SSL */
888 listen_sslctx_setup(void* ctxt)
891 SSL_CTX* ctx = (SSL_CTX*)ctxt;
892 /* no SSLv2, SSLv3 because has defects */
893 #if SSL_OP_NO_SSLv2 != 0
894 if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) & SSL_OP_NO_SSLv2)
896 log_crypto_err("could not set SSL_OP_NO_SSLv2");
900 if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3) & SSL_OP_NO_SSLv3)
902 log_crypto_err("could not set SSL_OP_NO_SSLv3");
905 #if defined(SSL_OP_NO_TLSv1) && defined(SSL_OP_NO_TLSv1_1)
906 /* if we have tls 1.1 disable 1.0 */
907 if((SSL_CTX_set_options(ctx, SSL_OP_NO_TLSv1) & SSL_OP_NO_TLSv1)
909 log_crypto_err("could not set SSL_OP_NO_TLSv1");
913 #if defined(SSL_OP_NO_TLSv1_1) && defined(SSL_OP_NO_TLSv1_2)
914 /* if we have tls 1.2 disable 1.1 */
915 if((SSL_CTX_set_options(ctx, SSL_OP_NO_TLSv1_1) & SSL_OP_NO_TLSv1_1)
916 != SSL_OP_NO_TLSv1_1){
917 log_crypto_err("could not set SSL_OP_NO_TLSv1_1");
921 #if defined(SSL_OP_NO_RENEGOTIATION)
922 /* disable client renegotiation */
923 if((SSL_CTX_set_options(ctx, SSL_OP_NO_RENEGOTIATION) &
924 SSL_OP_NO_RENEGOTIATION) != SSL_OP_NO_RENEGOTIATION) {
925 log_crypto_err("could not set SSL_OP_NO_RENEGOTIATION");
929 #if defined(SHA256_DIGEST_LENGTH) && defined(USE_ECDSA)
930 /* if we have sha256, set the cipher list to have no known vulns */
931 if(!SSL_CTX_set_cipher_list(ctx, "TLS13-CHACHA20-POLY1305-SHA256:TLS13-AES-256-GCM-SHA384:TLS13-AES-128-GCM-SHA256: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"))
932 log_crypto_err("could not set cipher list with SSL_CTX_set_cipher_list");
935 if((SSL_CTX_set_options(ctx, SSL_OP_CIPHER_SERVER_PREFERENCE) &
936 SSL_OP_CIPHER_SERVER_PREFERENCE) !=
937 SSL_OP_CIPHER_SERVER_PREFERENCE) {
938 log_crypto_err("could not set SSL_OP_CIPHER_SERVER_PREFERENCE");
942 #ifdef HAVE_SSL_CTX_SET_SECURITY_LEVEL
943 SSL_CTX_set_security_level(ctx, 0);
947 #endif /* HAVE_SSL */
952 listen_sslctx_setup_2(void* ctxt)
955 SSL_CTX* ctx = (SSL_CTX*)ctxt;
957 #if HAVE_DECL_SSL_CTX_SET_ECDH_AUTO
958 if(!SSL_CTX_set_ecdh_auto(ctx,1)) {
959 log_crypto_err("Error in SSL_CTX_ecdh_auto, not enabling ECDHE");
961 #elif defined(USE_ECDSA)
963 EC_KEY *ecdh = EC_KEY_new_by_curve_name (NID_X9_62_prime256v1);
965 log_crypto_err("could not find p256, not enabling ECDHE");
967 if (1 != SSL_CTX_set_tmp_ecdh (ctx, ecdh)) {
968 log_crypto_err("Error in SSL_CTX_set_tmp_ecdh, not enabling ECDHE");
976 #endif /* HAVE_SSL */
979 void* listen_sslctx_create(char* key, char* pem, char* verifypem)
982 SSL_CTX* ctx = SSL_CTX_new(SSLv23_server_method());
984 log_crypto_err("could not SSL_CTX_new");
987 if(!key || key[0] == 0) {
988 log_err("error: no tls-service-key file specified");
992 if(!pem || pem[0] == 0) {
993 log_err("error: no tls-service-pem file specified");
997 if(!listen_sslctx_setup(ctx)) {
1001 if(!SSL_CTX_use_certificate_chain_file(ctx, pem)) {
1002 log_err("error for cert file: %s", pem);
1003 log_crypto_err("error in SSL_CTX use_certificate_chain_file");
1007 if(!SSL_CTX_use_PrivateKey_file(ctx, key, SSL_FILETYPE_PEM)) {
1008 log_err("error for private key file: %s", key);
1009 log_crypto_err("Error in SSL_CTX use_PrivateKey_file");
1013 if(!SSL_CTX_check_private_key(ctx)) {
1014 log_err("error for key file: %s", key);
1015 log_crypto_err("Error in SSL_CTX check_private_key");
1019 listen_sslctx_setup_2(ctx);
1020 if(verifypem && verifypem[0]) {
1021 if(!SSL_CTX_load_verify_locations(ctx, verifypem, NULL)) {
1022 log_crypto_err("Error in SSL_CTX verify locations");
1026 SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file(
1028 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER|SSL_VERIFY_FAIL_IF_NO_PEER_CERT, NULL);
1032 (void)key; (void)pem; (void)verifypem;
1038 /* For windows, the CA trust store is not read by openssl.
1039 Add code to open the trust store using wincrypt API and add
1040 the root certs into openssl trust store */
1042 add_WIN_cacerts_to_openssl_store(SSL_CTX* tls_ctx)
1044 HCERTSTORE hSystemStore;
1045 PCCERT_CONTEXT pTargetCert = NULL;
1048 verbose(VERB_ALGO, "Adding Windows certificates from system root store to CA store");
1050 /* load just once per context lifetime for this version
1051 TODO: dynamically update CA trust changes as they are available */
1055 /* Call wincrypt's CertOpenStore to open the CA root store. */
1057 if ((hSystemStore = CertOpenStore(
1058 CERT_STORE_PROV_SYSTEM,
1061 /* NOTE: mingw does not have this const: replace with 1 << 16 from code
1062 CERT_SYSTEM_STORE_CURRENT_USER, */
1069 store = SSL_CTX_get_cert_store(tls_ctx);
1073 /* failure if the CA store is empty or the call fails */
1074 if ((pTargetCert = CertEnumCertificatesInStore(
1075 hSystemStore, pTargetCert)) == 0) {
1076 verbose(VERB_ALGO, "CA certificate store for Windows is empty.");
1079 /* iterate over the windows cert store and add to openssl store */
1082 X509 *cert1 = d2i_X509(NULL,
1083 (const unsigned char **)&pTargetCert->pbCertEncoded,
1084 pTargetCert->cbCertEncoded);
1086 /* return error if a cert fails */
1087 verbose(VERB_ALGO, "%s %d:%s",
1088 "Unable to parse certificate in memory",
1089 (int)ERR_get_error(), ERR_error_string(ERR_get_error(), NULL));
1093 /* return error if a cert add to store fails */
1094 if (X509_STORE_add_cert(store, cert1) == 0) {
1095 unsigned long error = ERR_peek_last_error();
1097 /* Ignore error X509_R_CERT_ALREADY_IN_HASH_TABLE which means the
1098 * certificate is already in the store. */
1099 if(ERR_GET_LIB(error) != ERR_LIB_X509 ||
1100 ERR_GET_REASON(error) != X509_R_CERT_ALREADY_IN_HASH_TABLE) {
1101 verbose(VERB_ALGO, "%s %d:%s\n",
1102 "Error adding certificate", (int)ERR_get_error(),
1103 ERR_error_string(ERR_get_error(), NULL));
1110 } while ((pTargetCert = CertEnumCertificatesInStore(
1111 hSystemStore, pTargetCert)) != 0);
1113 /* Clean up memory and quit. */
1115 CertFreeCertificateContext(pTargetCert);
1118 if (!CertCloseStore(
1122 verbose(VERB_ALGO, "Completed adding Windows certificates to CA store successfully");
1125 #endif /* USE_WINSOCK */
1127 void* connect_sslctx_create(char* key, char* pem, char* verifypem, int wincert)
1130 SSL_CTX* ctx = SSL_CTX_new(SSLv23_client_method());
1132 log_crypto_err("could not allocate SSL_CTX pointer");
1135 #if SSL_OP_NO_SSLv2 != 0
1136 if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) & SSL_OP_NO_SSLv2)
1137 != SSL_OP_NO_SSLv2) {
1138 log_crypto_err("could not set SSL_OP_NO_SSLv2");
1143 if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3) & SSL_OP_NO_SSLv3)
1144 != SSL_OP_NO_SSLv3) {
1145 log_crypto_err("could not set SSL_OP_NO_SSLv3");
1149 #if defined(SSL_OP_NO_RENEGOTIATION)
1150 /* disable client renegotiation */
1151 if((SSL_CTX_set_options(ctx, SSL_OP_NO_RENEGOTIATION) &
1152 SSL_OP_NO_RENEGOTIATION) != SSL_OP_NO_RENEGOTIATION) {
1153 log_crypto_err("could not set SSL_OP_NO_RENEGOTIATION");
1158 if(!SSL_CTX_use_certificate_chain_file(ctx, pem)) {
1159 log_err("error in client certificate %s", pem);
1160 log_crypto_err("error in certificate file");
1164 if(!SSL_CTX_use_PrivateKey_file(ctx, key, SSL_FILETYPE_PEM)) {
1165 log_err("error in client private key %s", key);
1166 log_crypto_err("error in key file");
1170 if(!SSL_CTX_check_private_key(ctx)) {
1171 log_err("error in client key %s", key);
1172 log_crypto_err("error in SSL_CTX_check_private_key");
1177 if((verifypem && verifypem[0]) || wincert) {
1178 if(verifypem && verifypem[0]) {
1179 if(!SSL_CTX_load_verify_locations(ctx, verifypem, NULL)) {
1180 log_crypto_err("error in SSL_CTX verify");
1187 if(!add_WIN_cacerts_to_openssl_store(ctx)) {
1188 log_crypto_err("error in add_WIN_cacerts_to_openssl_store");
1196 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL);
1200 (void)key; (void)pem; (void)verifypem; (void)wincert;
1205 void* incoming_ssl_fd(void* sslctx, int fd)
1208 SSL* ssl = SSL_new((SSL_CTX*)sslctx);
1210 log_crypto_err("could not SSL_new");
1213 SSL_set_accept_state(ssl);
1214 (void)SSL_set_mode(ssl, (long)SSL_MODE_AUTO_RETRY);
1215 if(!SSL_set_fd(ssl, fd)) {
1216 log_crypto_err("could not SSL_set_fd");
1222 (void)sslctx; (void)fd;
1227 void* outgoing_ssl_fd(void* sslctx, int fd)
1230 SSL* ssl = SSL_new((SSL_CTX*)sslctx);
1232 log_crypto_err("could not SSL_new");
1235 SSL_set_connect_state(ssl);
1236 (void)SSL_set_mode(ssl, (long)SSL_MODE_AUTO_RETRY);
1237 if(!SSL_set_fd(ssl, fd)) {
1238 log_crypto_err("could not SSL_set_fd");
1244 (void)sslctx; (void)fd;
1249 int check_auth_name_for_ssl(char* auth_name)
1251 if(!auth_name) return 1;
1252 #if defined(HAVE_SSL) && !defined(HAVE_SSL_SET1_HOST) && !defined(HAVE_X509_VERIFY_PARAM_SET1_HOST)
1253 log_err("the query has an auth_name %s, but libssl has no call to "
1254 "perform TLS authentication. Remove that name from config "
1255 "or upgrade the ssl crypto library.", auth_name);
1262 /** set the authname on an SSL structure, SSL* ssl */
1263 int set_auth_name_on_ssl(void* ssl, char* auth_name, int use_sni)
1265 if(!auth_name) return 1;
1268 (void)SSL_set_tlsext_host_name(ssl, auth_name);
1274 #ifdef HAVE_SSL_SET1_HOST
1275 SSL_set_verify(ssl, SSL_VERIFY_PEER, NULL);
1276 /* setting the hostname makes openssl verify the
1277 * host name in the x509 certificate in the
1279 if(!SSL_set1_host(ssl, auth_name)) {
1280 log_err("SSL_set1_host failed");
1283 #elif defined(HAVE_X509_VERIFY_PARAM_SET1_HOST)
1284 /* openssl 1.0.2 has this function that can be used for
1285 * set1_host like verification */
1287 X509_VERIFY_PARAM* param = SSL_get0_param(ssl);
1288 # ifdef X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS
1289 X509_VERIFY_PARAM_set_hostflags(param, X509_CHECK_FLAG_NO_PARTIAL_WILDCARDS);
1291 if(!X509_VERIFY_PARAM_set1_host(param, auth_name, strlen(auth_name))) {
1292 log_err("X509_VERIFY_PARAM_set1_host failed");
1295 SSL_set_verify(ssl, SSL_VERIFY_PEER, NULL);
1298 verbose(VERB_ALGO, "the query has an auth_name, but libssl has no call to perform TLS authentication");
1299 #endif /* HAVE_SSL_SET1_HOST */
1303 #if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED) && defined(CRYPTO_LOCK) && OPENSSL_VERSION_NUMBER < 0x10100000L
1304 /** global lock list for openssl locks */
1305 static lock_basic_type *ub_openssl_locks = NULL;
1307 /** callback that gets thread id for openssl */
1308 #ifdef HAVE_CRYPTO_THREADID_SET_CALLBACK
1310 ub_crypto_id_cb(CRYPTO_THREADID *id)
1312 CRYPTO_THREADID_set_numeric(id, (unsigned long)log_thread_get());
1315 static unsigned long
1316 ub_crypto_id_cb(void)
1318 return (unsigned long)log_thread_get();
1323 ub_crypto_lock_cb(int mode, int type, const char *ATTR_UNUSED(file),
1324 int ATTR_UNUSED(line))
1326 if((mode&CRYPTO_LOCK)) {
1327 lock_basic_lock(&ub_openssl_locks[type]);
1329 lock_basic_unlock(&ub_openssl_locks[type]);
1332 #endif /* OPENSSL_THREADS */
1334 int ub_openssl_lock_init(void)
1336 #if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED) && defined(CRYPTO_LOCK) && OPENSSL_VERSION_NUMBER < 0x10100000L
1338 ub_openssl_locks = (lock_basic_type*)reallocarray(
1339 NULL, (size_t)CRYPTO_num_locks(), sizeof(lock_basic_type));
1340 if(!ub_openssl_locks)
1342 for(i=0; i<CRYPTO_num_locks(); i++) {
1343 lock_basic_init(&ub_openssl_locks[i]);
1345 # ifdef HAVE_CRYPTO_THREADID_SET_CALLBACK
1346 CRYPTO_THREADID_set_callback(&ub_crypto_id_cb);
1348 CRYPTO_set_id_callback(&ub_crypto_id_cb);
1350 CRYPTO_set_locking_callback(&ub_crypto_lock_cb);
1351 #endif /* OPENSSL_THREADS */
1355 void ub_openssl_lock_delete(void)
1357 #if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED) && defined(CRYPTO_LOCK) && OPENSSL_VERSION_NUMBER < 0x10100000L
1359 if(!ub_openssl_locks)
1361 # ifdef HAVE_CRYPTO_THREADID_SET_CALLBACK
1362 CRYPTO_THREADID_set_callback(NULL);
1364 CRYPTO_set_id_callback(NULL);
1366 CRYPTO_set_locking_callback(NULL);
1367 for(i=0; i<CRYPTO_num_locks(); i++) {
1368 lock_basic_destroy(&ub_openssl_locks[i]);
1370 free(ub_openssl_locks);
1371 #endif /* OPENSSL_THREADS */
1374 int listen_sslctx_setup_ticket_keys(void* sslctx, struct config_strlist* tls_session_ticket_keys) {
1377 struct config_strlist* p;
1378 struct tls_session_ticket_key *keys;
1379 for(p = tls_session_ticket_keys; p; p = p->next) {
1382 keys = calloc(s, sizeof(struct tls_session_ticket_key));
1385 memset(keys, 0, s*sizeof(*keys));
1388 for(p = tls_session_ticket_keys; p; p = p->next) {
1390 unsigned char *data;
1393 data = (unsigned char *)malloc(80);
1397 f = fopen(p->str, "rb");
1399 log_err("could not read tls-session-ticket-key %s: %s", p->str, strerror(errno));
1403 n = fread(data, 1, 80, f);
1407 log_err("tls-session-ticket-key %s is %d bytes, must be 80 bytes", p->str, (int)n);
1411 verbose(VERB_OPS, "read tls-session-ticket-key: %s", p->str);
1413 keys->key_name = data;
1414 keys->aes_key = data + 16;
1415 keys->hmac_key = data + 48;
1418 /* terminate array with NULL key name entry */
1419 keys->key_name = NULL;
1420 # ifdef HAVE_SSL_CTX_SET_TLSEXT_TICKET_KEY_EVP_CB
1421 if(SSL_CTX_set_tlsext_ticket_key_evp_cb(sslctx, tls_session_ticket_key_cb) == 0) {
1422 log_err("no support for TLS session ticket");
1426 if(SSL_CTX_set_tlsext_ticket_key_cb(sslctx, tls_session_ticket_key_cb) == 0) {
1427 log_err("no support for TLS session ticket");
1434 (void)tls_session_ticket_keys;
1441 int tls_session_ticket_key_cb(SSL *ATTR_UNUSED(sslctx), unsigned char* key_name,
1442 unsigned char* iv, EVP_CIPHER_CTX *evp_sctx,
1443 #ifdef HAVE_SSL_CTX_SET_TLSEXT_TICKET_KEY_EVP_CB
1444 EVP_MAC_CTX *hmac_ctx,
1451 # ifdef HAVE_SSL_CTX_SET_TLSEXT_TICKET_KEY_EVP_CB
1452 OSSL_PARAM params[3];
1454 const EVP_MD *digest;
1456 const EVP_CIPHER *cipher;
1457 int evp_cipher_length;
1458 # ifndef HAVE_SSL_CTX_SET_TLSEXT_TICKET_KEY_EVP_CB
1459 digest = EVP_sha256();
1461 cipher = EVP_aes_256_cbc();
1462 evp_cipher_length = EVP_CIPHER_iv_length(cipher);
1465 verbose(VERB_CLIENT, "start session encrypt");
1466 memcpy(key_name, ticket_keys->key_name, 16);
1467 if (RAND_bytes(iv, evp_cipher_length) != 1) {
1468 verbose(VERB_CLIENT, "RAND_bytes failed");
1471 if (EVP_EncryptInit_ex(evp_sctx, cipher, NULL, ticket_keys->aes_key, iv) != 1) {
1472 verbose(VERB_CLIENT, "EVP_EncryptInit_ex failed");
1475 #ifdef HAVE_SSL_CTX_SET_TLSEXT_TICKET_KEY_EVP_CB
1476 params[0] = OSSL_PARAM_construct_octet_string(OSSL_MAC_PARAM_KEY,
1477 ticket_keys->hmac_key, 32);
1478 params[1] = OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_DIGEST,
1480 params[2] = OSSL_PARAM_construct_end();
1481 EVP_MAC_set_ctx_params(hmac_ctx, params);
1482 #elif !defined(HMAC_INIT_EX_RETURNS_VOID)
1483 if (HMAC_Init_ex(hmac_ctx, ticket_keys->hmac_key, 32, digest, NULL) != 1) {
1484 verbose(VERB_CLIENT, "HMAC_Init_ex failed");
1488 HMAC_Init_ex(hmac_ctx, ticket_keys->hmac_key, 32, digest, NULL);
1491 } else if (enc == 0) {
1493 struct tls_session_ticket_key *key;
1494 verbose(VERB_CLIENT, "start session decrypt");
1495 for(key = ticket_keys; key->key_name != NULL; key++) {
1496 if (!memcmp(key_name, key->key_name, 16)) {
1497 verbose(VERB_CLIENT, "Found session_key");
1501 if(key->key_name == NULL) {
1502 verbose(VERB_CLIENT, "Not found session_key");
1506 #ifdef HAVE_SSL_CTX_SET_TLSEXT_TICKET_KEY_EVP_CB
1507 params[0] = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_KEY,
1509 params[1] = OSSL_PARAM_construct_utf8_string(OSSL_MAC_PARAM_DIGEST,
1511 params[2] = OSSL_PARAM_construct_end();
1512 EVP_MAC_set_ctx_params(hmac_ctx, params);
1513 #elif !defined(HMAC_INIT_EX_RETURNS_VOID)
1514 if (HMAC_Init_ex(hmac_ctx, key->hmac_key, 32, digest, NULL) != 1) {
1515 verbose(VERB_CLIENT, "HMAC_Init_ex failed");
1519 HMAC_Init_ex(hmac_ctx, key->hmac_key, 32, digest, NULL);
1521 if (EVP_DecryptInit_ex(evp_sctx, cipher, NULL, key->aes_key, iv) != 1) {
1522 log_err("EVP_DecryptInit_ex failed");
1526 return (key == ticket_keys) ? 1 : 2;
1538 #endif /* HAVE_SSL */
1541 listen_sslctx_delete_ticket_keys(void)
1543 struct tls_session_ticket_key *key;
1544 if(!ticket_keys) return;
1545 for(key = ticket_keys; key->key_name != NULL; key++) {
1546 /* wipe key data from memory*/
1547 #ifdef HAVE_EXPLICIT_BZERO
1548 explicit_bzero(key->key_name, 80);
1550 memset(key->key_name, 0xdd, 80);
1552 free(key->key_name);