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authorRichard Lowe <richlowe@richlowe.net>2016-08-09 13:52:53 -0400
committerRichard Lowe <richlowe@richlowe.net>2016-08-22 10:51:23 -0400
commit0343317a7b3df0798d9facd6eb5a0e83abd23d83 (patch)
treefa4c21e47758ad53e9e82c4709593e9731baffb4 /usr/src/cmd/ssh/libssh/common/entropy.c
parent09c0accb630678e1a150310a8852806c5052b2ac (diff)
downloadillumos-gate-0343317a7b3df0798d9facd6eb5a0e83abd23d83.tar.gz
7293 Sun Secure Shell is neither
Reviewed by: Albert Lee <trisk@omniti.com> Reviewed by: Alex Wilson <alex.wilson@joyent.com> Reviewed by: Alexander Pyhalov <alp@rsu.ru> Reviewed by: Dan McDonald <danmcd@omniti.com> Reviewed by: Garrett D'Amore <garrett@damore.org> Reviewed by: Peter Tribble <peter.tribble@gmail.com>
Diffstat (limited to 'usr/src/cmd/ssh/libssh/common/entropy.c')
-rw-r--r--usr/src/cmd/ssh/libssh/common/entropy.c156
1 files changed, 0 insertions, 156 deletions
diff --git a/usr/src/cmd/ssh/libssh/common/entropy.c b/usr/src/cmd/ssh/libssh/common/entropy.c
deleted file mode 100644
index c661b74496..0000000000
--- a/usr/src/cmd/ssh/libssh/common/entropy.c
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * Copyright (c) 2001 Damien Miller. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "includes.h"
-
-#include <openssl/rand.h>
-#include <openssl/crypto.h>
-
-#include "ssh.h"
-#include "misc.h"
-#include "xmalloc.h"
-#include "atomicio.h"
-#include "pathnames.h"
-#include "log.h"
-
-/*
- * Portable OpenSSH PRNG seeding:
- * If OpenSSL has not "internally seeded" itself (e.g. pulled data from
- * /dev/random), then we execute a "ssh-rand-helper" program which
- * collects entropy and writes it to stdout. The child program must
- * write at least RANDOM_SEED_SIZE bytes. The child is run with stderr
- * attached, so error/debugging output should be visible.
- *
- * XXX: we should tell the child how many bytes we need.
- */
-
-RCSID("$Id: entropy.c,v 1.44 2002/06/09 19:41:48 mouring Exp $");
-
-#pragma ident "%Z%%M% %I% %E% SMI"
-
-#ifndef OPENSSL_PRNG_ONLY
-#define RANDOM_SEED_SIZE 48
-static uid_t original_uid, original_euid;
-#endif
-
-void
-seed_rng(void)
-{
-#ifndef OPENSSL_PRNG_ONLY
- int devnull;
- int p[2];
- pid_t pid;
- int ret;
- unsigned char buf[RANDOM_SEED_SIZE];
- mysig_t old_sigchld;
-
- if (RAND_status() == 1) {
- debug3("RNG is ready, skipping seeding");
- return;
- }
-
- debug3("Seeding PRNG from %s", SSH_RAND_HELPER);
-
- if ((devnull = open("/dev/null", O_RDWR)) == -1)
- fatal("Couldn't open /dev/null: %s", strerror(errno));
- if (pipe(p) == -1)
- fatal("pipe: %s", strerror(errno));
-
- old_sigchld = mysignal(SIGCHLD, SIG_DFL);
- if ((pid = fork()) == -1)
- fatal("Couldn't fork: %s", strerror(errno));
- if (pid == 0) {
- dup2(devnull, STDIN_FILENO);
- dup2(p[1], STDOUT_FILENO);
- /* Keep stderr open for errors */
- close(p[0]);
- close(p[1]);
- close(devnull);
-
- if (original_uid != original_euid &&
- ( seteuid(getuid()) == -1 ||
- setuid(original_uid) == -1) ) {
- fprintf(stderr, "(rand child) setuid(%d): %s\n",
- original_uid, strerror(errno));
- _exit(1);
- }
-
- execl(SSH_RAND_HELPER, "ssh-rand-helper", NULL);
- fprintf(stderr, "(rand child) Couldn't exec '%s': %s\n",
- SSH_RAND_HELPER, strerror(errno));
- _exit(1);
- }
-
- close(devnull);
- close(p[1]);
-
- memset(buf, '\0', sizeof(buf));
- ret = atomicio(read, p[0], buf, sizeof(buf));
- if (ret == -1)
- fatal("Couldn't read from ssh-rand-helper: %s",
- strerror(errno));
- if (ret != sizeof(buf))
- fatal("ssh-rand-helper child produced insufficient data");
-
- close(p[0]);
-
- if (waitpid(pid, &ret, 0) == -1)
- fatal("Couldn't wait for ssh-rand-helper completion: %s",
- strerror(errno));
- mysignal(SIGCHLD, old_sigchld);
-
- /* We don't mind if the child exits upon a SIGPIPE */
- if (!WIFEXITED(ret) &&
- (!WIFSIGNALED(ret) || WTERMSIG(ret) != SIGPIPE))
- fatal("ssh-rand-helper terminated abnormally");
- if (WEXITSTATUS(ret) != 0)
- fatal("ssh-rand-helper exit with exit status %d", ret);
-
- RAND_add(buf, sizeof(buf), sizeof(buf));
- memset(buf, '\0', sizeof(buf));
-
-#endif /* OPENSSL_PRNG_ONLY */
- if (RAND_status() != 1)
- fatal("PRNG is not seeded");
-}
-
-void
-init_rng(void)
-{
- /*
- * OpenSSL version numbers: MNNFFPPS: major minor fix patch status
- * We match major, minor, fix and status (not patch)
- */
- if ((SSLeay() ^ OPENSSL_VERSION_NUMBER) & ~0xff0L)
- fatal("OpenSSL version mismatch. Built against %lx, you "
- "have %lx", OPENSSL_VERSION_NUMBER, SSLeay());
-
-#ifndef OPENSSL_PRNG_ONLY
- if ((original_uid = getuid()) == -1)
- fatal("getuid: %s", strerror(errno));
- if ((original_euid = geteuid()) == -1)
- fatal("geteuid: %s", strerror(errno));
-#endif
-}
-