diff -up openssh-5.8p1/entropy.c.entropy openssh-5.8p1/entropy.c --- openssh-5.8p1/entropy.c.entropy 2011-01-13 11:05:29.000000000 +0100 +++ openssh-5.8p1/entropy.c 2011-03-22 18:26:41.013648606 +0100 @@ -144,6 +144,9 @@ seed_rng(void) memset(buf, '\0', sizeof(buf)); #endif /* OPENSSL_PRNG_ONLY */ +#ifdef __linux__ + linux_seed(); +#endif /* __linux__ */ if (RAND_status() != 1) fatal("PRNG is not seeded"); } diff -up openssh-5.8p1/openbsd-compat/Makefile.in.entropy openssh-5.8p1/openbsd-compat/Makefile.in --- openssh-5.8p1/openbsd-compat/Makefile.in.entropy 2010-10-07 13:19:24.000000000 +0200 +++ openssh-5.8p1/openbsd-compat/Makefile.in 2011-03-22 18:28:31.835648739 +0100 @@ -20,7 +20,7 @@ OPENBSD=base64.o basename.o bindresvport COMPAT=bsd-arc4random.o bsd-asprintf.o bsd-closefrom.o bsd-cray.o bsd-cygwin_util.o bsd-getpeereid.o bsd-misc.o bsd-nextstep.o bsd-openpty.o bsd-poll.o bsd-snprintf.o bsd-statvfs.o bsd-waitpid.o fake-rfc2553.o openssl-compat.o xmmap.o xcrypt.o -PORTS=port-aix.o port-irix.o port-linux.o port-solaris.o port-tun.o port-uw.o +PORTS=port-aix.o port-irix.o port-linux.o port-linux-prng.o port-solaris.o port-tun.o port-uw.o .c.o: $(CC) $(CFLAGS) $(CPPFLAGS) -c $< diff -up openssh-5.8p1/openbsd-compat/port-linux-prng.c.entropy openssh-5.8p1/openbsd-compat/port-linux-prng.c --- openssh-5.8p1/openbsd-compat/port-linux-prng.c.entropy 2011-03-22 18:27:57.422648991 +0100 +++ openssh-5.8p1/openbsd-compat/port-linux-prng.c 2011-03-22 18:27:57.401648964 +0100 @@ -0,0 +1,56 @@ +/* $Id: port-linux.c,v 1.11.4.2 2011/02/04 00:43:08 djm Exp $ */ + +/* + * Copyright (c) 2005 Daniel Walsh + * Copyright (c) 2006 Damien Miller + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +/* + * Linux-specific portability code - prng support + */ + +#include "includes.h" + +#include +#include +#include +#include + +#include "log.h" +#include "xmalloc.h" +#include "servconf.h" +#include "port-linux.h" +#include "key.h" +#include "hostfile.h" +#include "auth.h" + +void +linux_seed(void) +{ + int len; + char *env = getenv("SSH_USE_STRONG_RNG"); + char *random = "/dev/urandom"; + + if (env && !strcmp(env, "1")) + random = "/dev/random"; + + errno = 0; + if ((len = RAND_load_file(random, 48)) != 48) { + if (errno) + fatal ("cannot read from %s, %s", random, strerror(errno)); + else + fatal ("EOF reading %s", random); + } +}