11305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood/* 21305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Copyright (c) 2001 Damien Miller. All rights reserved. 31305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 41305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Redistribution and use in source and binary forms, with or without 51305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * modification, are permitted provided that the following conditions 61305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * are met: 71305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 1. Redistributions of source code must retain the above copyright 81305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * notice, this list of conditions and the following disclaimer. 91305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 2. Redistributions in binary form must reproduce the above copyright 101305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * notice, this list of conditions and the following disclaimer in the 111305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * documentation and/or other materials provided with the distribution. 121305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 131305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 141305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 151305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 161305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 171305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 181305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 191305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 201305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 211305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 221305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 231305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood */ 241305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 251305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "includes.h" 261305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 271305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <sys/types.h> 281305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <sys/socket.h> 291305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#ifdef HAVE_SYS_UN_H 301305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood# include <sys/un.h> 311305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#endif 321305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 331305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <netinet/in.h> 341305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <arpa/inet.h> 351305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 361305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <errno.h> 371305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <signal.h> 381305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <string.h> 391305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <unistd.h> 401305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <stddef.h> /* for offsetof */ 411305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 421305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <openssl/rand.h> 431305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <openssl/crypto.h> 441305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include <openssl/err.h> 451305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 461305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "ssh.h" 471305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "misc.h" 481305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "xmalloc.h" 491305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "atomicio.h" 501305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "pathnames.h" 511305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "log.h" 521305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#include "buffer.h" 531305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 541305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood/* 551305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Portable OpenSSH PRNG seeding: 561305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * If OpenSSL has not "internally seeded" itself (e.g. pulled data from 571305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * /dev/random), then collect RANDOM_SEED_SIZE bytes of randomness from 581305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * PRNGd. 591305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood */ 601305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#ifndef OPENSSL_PRNG_ONLY 611305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 621305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#define RANDOM_SEED_SIZE 48 631305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 641305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood/* 651305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Collect 'len' bytes of entropy into 'buf' from PRNGD/EGD daemon 661305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * listening either on 'tcp_port', or via Unix domain socket at * 671305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * 'socket_path'. 681305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Either a non-zero tcp_port or a non-null socket_path must be 691305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * supplied. 701305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * Returns 0 on success, -1 on error 711305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood */ 721305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodint 731305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodget_random_bytes_prngd(unsigned char *buf, int len, 741305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood unsigned short tcp_port, char *socket_path) 751305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood{ 761305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood int fd, addr_len, rval, errors; 771305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood u_char msg[2]; 781305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood struct sockaddr_storage addr; 791305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood struct sockaddr_in *addr_in = (struct sockaddr_in *)&addr; 801305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood struct sockaddr_un *addr_un = (struct sockaddr_un *)&addr; 811305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood mysig_t old_sigpipe; 821305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 831305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood /* Sanity checks */ 841305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (socket_path == NULL && tcp_port == 0) 851305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood fatal("You must specify a port or a socket"); 861305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (socket_path != NULL && 871305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood strlen(socket_path) >= sizeof(addr_un->sun_path)) 881305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood fatal("Random pool path is too long"); 891305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (len <= 0 || len > 255) 901305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood fatal("Too many bytes (%d) to read from PRNGD", len); 911305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 921305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood memset(&addr, '\0', sizeof(addr)); 931305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 941305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (tcp_port != 0) { 951305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood addr_in->sin_family = AF_INET; 961305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood addr_in->sin_addr.s_addr = htonl(INADDR_LOOPBACK); 971305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood addr_in->sin_port = htons(tcp_port); 981305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood addr_len = sizeof(*addr_in); 991305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } else { 1001305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood addr_un->sun_family = AF_UNIX; 1011305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood strlcpy(addr_un->sun_path, socket_path, 1021305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood sizeof(addr_un->sun_path)); 1031305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood addr_len = offsetof(struct sockaddr_un, sun_path) + 1041305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood strlen(socket_path) + 1; 1051305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } 1061305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 1071305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood old_sigpipe = mysignal(SIGPIPE, SIG_IGN); 1081305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 1091305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood errors = 0; 1101305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood rval = -1; 1111305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodreopen: 1121305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood fd = socket(addr.ss_family, SOCK_STREAM, 0); 1131305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (fd == -1) { 1141305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood error("Couldn't create socket: %s", strerror(errno)); 1151305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood goto done; 1161305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } 1171305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 1181305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (connect(fd, (struct sockaddr*)&addr, addr_len) == -1) { 1191305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (tcp_port != 0) { 1201305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood error("Couldn't connect to PRNGD port %d: %s", 1211305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood tcp_port, strerror(errno)); 1221305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } else { 1231305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood error("Couldn't connect to PRNGD socket \"%s\": %s", 1241305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood addr_un->sun_path, strerror(errno)); 1251305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } 1261305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood goto done; 1271305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } 1281305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 1291305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood /* Send blocking read request to PRNGD */ 1301305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood msg[0] = 0x02; 1311305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood msg[1] = len; 1321305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 1331305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (atomicio(vwrite, fd, msg, sizeof(msg)) != sizeof(msg)) { 1341305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (errno == EPIPE && errors < 10) { 1351305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood close(fd); 1361305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood errors++; 1371305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood goto reopen; 1381305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } 1391305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood error("Couldn't write to PRNGD socket: %s", 1401305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood strerror(errno)); 1411305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood goto done; 1421305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } 1431305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 1441305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (atomicio(read, fd, buf, len) != (size_t)len) { 1451305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (errno == EPIPE && errors < 10) { 1461305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood close(fd); 1471305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood errors++; 1481305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood goto reopen; 1491305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } 1501305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood error("Couldn't read from PRNGD socket: %s", 1511305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood strerror(errno)); 1521305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood goto done; 1531305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } 1541305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 1551305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood rval = 0; 1561305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwooddone: 1571305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood mysignal(SIGPIPE, old_sigpipe); 1581305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (fd != -1) 1591305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood close(fd); 1601305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood return rval; 1611305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood} 1621305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 1631305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodstatic int 1641305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodseed_from_prngd(unsigned char *buf, size_t bytes) 1651305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood{ 1661305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#ifdef PRNGD_PORT 1671305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood debug("trying egd/prngd port %d", PRNGD_PORT); 1681305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (get_random_bytes_prngd(buf, bytes, PRNGD_PORT, NULL) == 0) 1691305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood return 0; 1701305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#endif 1711305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#ifdef PRNGD_SOCKET 1721305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood debug("trying egd/prngd socket %s", PRNGD_SOCKET); 1731305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (get_random_bytes_prngd(buf, bytes, 0, PRNGD_SOCKET) == 0) 1741305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood return 0; 1751305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#endif 1761305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood return -1; 1771305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood} 1781305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 1791305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodvoid 1801305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodrexec_send_rng_seed(Buffer *m) 1811305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood{ 1821305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood u_char buf[RANDOM_SEED_SIZE]; 1831305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 1841305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (RAND_bytes(buf, sizeof(buf)) <= 0) { 1851305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood error("Couldn't obtain random bytes (error %ld)", 1861305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood ERR_get_error()); 1871305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood buffer_put_string(m, "", 0); 1881305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } else 1891305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood buffer_put_string(m, buf, sizeof(buf)); 1901305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood} 1911305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 1921305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodvoid 1931305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodrexec_recv_rng_seed(Buffer *m) 1941305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood{ 1951305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood u_char *buf; 1961305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood u_int len; 1971305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 1981305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood buf = buffer_get_string_ret(m, &len); 1991305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (buf != NULL) { 2001305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood debug3("rexec_recv_rng_seed: seeding rng with %u bytes", len); 2011305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood RAND_add(buf, len, len); 2021305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } 2031305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood} 2041305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#endif /* OPENSSL_PRNG_ONLY */ 2051305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 2061305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodvoid 2071305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwoodseed_rng(void) 2081305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood{ 2091305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#ifndef OPENSSL_PRNG_ONLY 2101305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood unsigned char buf[RANDOM_SEED_SIZE]; 2111305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#endif 2121305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood /* 2131305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * OpenSSL version numbers: MNNFFPPS: major minor fix patch status 2141305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood * We match major, minor, fix and status (not patch) 2151305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood */ 2161305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if ((SSLeay() ^ OPENSSL_VERSION_NUMBER) & ~0xff0L) 2171305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood fatal("OpenSSL version mismatch. Built against %lx, you " 2181305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood "have %lx", (u_long)OPENSSL_VERSION_NUMBER, SSLeay()); 2191305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 2201305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#ifndef OPENSSL_PRNG_ONLY 2211305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (RAND_status() == 1) { 2221305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood debug3("RNG is ready, skipping seeding"); 2231305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood return; 2241305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood } 2251305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 2261305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (seed_from_prngd(buf, sizeof(buf)) == -1) 2271305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood fatal("Could not obtain seed from PRNGd"); 2281305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood RAND_add(buf, sizeof(buf), sizeof(buf)); 2291305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood memset(buf, '\0', sizeof(buf)); 2301305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood 2311305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood#endif /* OPENSSL_PRNG_ONLY */ 2321305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood if (RAND_status() != 1) 2331305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood fatal("PRNG is not seeded"); 2341305e95ba6ff9fa202d0818caf10405df4b0f648Mike Lockwood} 235