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📄 PROTOCOL.chacha20poly1305(4.52 KB)
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📄 addrmatch.c(10.97 KB)
📄 atomicio.c(4.4 KB)
📄 atomicio.h(2.14 KB)
📄 audit-bsm.c(11.82 KB)
📄 audit-linux.c(3.46 KB)
📄 audit.c(5.69 KB)
📄 audit.h(2.27 KB)
📄 auth-bsdauth.c(3.65 KB)
📄 auth-krb5.c(6.93 KB)
📄 auth-options.c(23.45 KB)
📄 auth-options.h(2.75 KB)
📄 auth-pam.c(35.07 KB)
📄 auth-pam.h(1.89 KB)
📄 auth-passwd.c(6.42 KB)
📄 auth-rhosts.c(8.89 KB)
📄 auth-shadow.c(4.25 KB)
📄 auth-sia.c(3.15 KB)
📄 auth-sia.h(1.4 KB)
📄 auth-skey.c(2.75 KB)
📄 auth.c(32.86 KB)
📄 auth.h(7.95 KB)
📄 auth2-chall.c(9.77 KB)
📄 auth2-gss.c(9.63 KB)
📄 auth2-hostbased.c(8.08 KB)
📄 auth2-kbdint.c(2.2 KB)
📄 auth2-none.c(2.29 KB)
📄 auth2-passwd.c(2.36 KB)
📄 auth2-pubkey.c(28.79 KB)
📄 auth2.c(22.23 KB)
📄 authfd.c(14.47 KB)
📄 authfd.h(3.05 KB)
📄 authfile.c(12.59 KB)
📄 authfile.h(2.34 KB)
📄 bitmap.c(4.44 KB)
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📄 chacha.c(5.28 KB)
📄 chacha.h(1000 B)
📄 channels.c(133.25 KB)
📄 channels.h(12.96 KB)
📄 cipher-aes.c(4.54 KB)
📄 cipher-aesctr.c(2.06 KB)
📄 cipher-aesctr.h(1.3 KB)
📄 cipher-chachapoly.c(3.72 KB)
📄 cipher-chachapoly.h(1.58 KB)
📄 cipher-ctr.c(3.57 KB)
📄 cipher.c(13.57 KB)
📄 cipher.h(3.15 KB)
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📄 crc32.c(4.92 KB)
📄 crc32.h(1.44 KB)
📄 crypto_api.h(1.12 KB)
📄 defines.h(21.73 KB)
📄 dh.c(15.14 KB)
📄 dh.h(2.59 KB)
📄 digest-libc.c(5.69 KB)
📄 digest-openssl.c(4.95 KB)
📄 digest.h(2.51 KB)
📄 dispatch.c(3.52 KB)
📄 dispatch.h(2.2 KB)
📄 dns.c(9.15 KB)
📄 dns.h(2.03 KB)
📄 ed25519.c(3.1 KB)
📄 entropy.c(6.34 KB)
📄 entropy.h(1.47 KB)
📄 fatal.c(1.63 KB)
📄 fe25519.c(8.13 KB)
📄 fe25519.h(2.31 KB)
📄 fixalgorithms(422 B)
📄 fixpaths(499 B)
📄 freebsd-configure.sh(1.07 KB)
📄 freebsd-namespace.sh(1.93 KB)
📄 freebsd-post-merge.sh(224 B)
📄 freebsd-pre-merge.sh(429 B)
📄 ge25519.c(11.04 KB)
📄 ge25519.h(1.35 KB)
📄 ge25519_base.data(164.61 KB)
📄 groupaccess.c(3.5 KB)
📄 groupaccess.h(1.53 KB)
📄 gss-genr.c(7.99 KB)
📄 gss-serv-krb5.c(5.63 KB)
📄 gss-serv.c(10.32 KB)
📄 hash.c(623 B)
📄 hmac.c(5.08 KB)
📄 hmac.h(1.62 KB)
📄 hostfile.c(21.7 KB)
📄 hostfile.h(3.8 KB)
📄 includes.h(3.85 KB)
📄 install-sh(13.67 KB)
📄 kex.c(25.9 KB)
📄 kex.h(7.32 KB)
📄 kexc25519.c(4.62 KB)
📄 kexc25519c.c(5.11 KB)
📄 kexc25519s.c(4.99 KB)
📄 kexdh.c(3.27 KB)
📄 kexdhc.c(6.13 KB)
📄 kexdhs.c(6.06 KB)
📄 kexecdh.c(3.49 KB)
📄 kexecdhc.c(6.22 KB)
📄 kexecdhs.c(5.94 KB)
📄 kexgex.c(3.67 KB)
📄 kexgexc.c(7.63 KB)
📄 kexgexs.c(7.35 KB)
📄 krb5_config.h(315 B)
📄 krl.c(35.63 KB)
📄 krl.h(2.67 KB)
📄 log.c(10.67 KB)
📄 log.h(2.64 KB)
📄 loginrec.c(41.91 KB)
📄 loginrec.h(4.6 KB)
📄 logintest.c(8.58 KB)
📄 mac.c(7.24 KB)
📄 mac.h(1.96 KB)
📄 match.c(9.14 KB)
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📄 md5crypt.c(3.98 KB)
📄 md5crypt.h(744 B)
📄 mdoc2man.awk(8.38 KB)
📄 misc.c(43.77 KB)
📄 misc.h(5.69 KB)
📄 mkinstalldirs(633 B)
📄 moduli(552 KB)
📄 moduli.5(3.6 KB)
📄 moduli.c(20.46 KB)
📄 monitor.c(50.56 KB)
📄 monitor.h(3.83 KB)
📄 monitor_fdpass.c(4.71 KB)
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📄 monitor_wrap.c(27.44 KB)
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📄 msg.c(2.75 KB)
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📄 mux.c(65.73 KB)
📄 myproposal.h(5.62 KB)
📄 nchan.c(12.06 KB)
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📄 nchan2.ms(3.38 KB)
📄 opacket.c(5.55 KB)
📄 opacket.h(5.98 KB)
📁 openbsd-compat
📄 openssh.xml.in(2.77 KB)
📄 opensshd.init.in(1.86 KB)
📄 packet.c(70.79 KB)
📄 packet.h(7.39 KB)
📄 pathnames.h(5.69 KB)
📄 pkcs11.h(41.37 KB)
📄 platform-misc.c(1.09 KB)
📄 platform-pledge.c(1.86 KB)
📄 platform-tracing.c(1.69 KB)
📄 platform.c(4.71 KB)
📄 platform.h(1.43 KB)
📄 poly1305.c(4.54 KB)
📄 poly1305.h(645 B)
📄 progressmeter.c(7.48 KB)
📄 progressmeter.h(1.44 KB)
📄 readconf.c(81 KB)
📄 readconf.h(7.83 KB)
📄 readpass.c(4.99 KB)
📁 regress
📄 rijndael.c(51.57 KB)
📄 rijndael.h(2.07 KB)
📄 sandbox-capsicum.c(3.39 KB)
📄 sandbox-darwin.c(2.49 KB)
📄 sandbox-null.c(1.62 KB)
📄 sandbox-pledge.c(1.83 KB)
📄 sandbox-rlimit.c(2.43 KB)
📄 sandbox-seccomp-filter.c(9.88 KB)
📄 sandbox-solaris.c(2.9 KB)
📄 sandbox-systrace.c(6.27 KB)
📄 sc25519.c(7.16 KB)
📄 sc25519.h(2.83 KB)
📄 scp.1(5.56 KB)
📄 scp.c(39.14 KB)
📄 servconf.c(79.73 KB)
📄 servconf.h(10.13 KB)
📄 serverloop.c(26.03 KB)
📄 serverloop.h(1000 B)
📄 session.c(66.72 KB)
📄 session.h(2.59 KB)
📄 sftp-client.c(49.62 KB)
📄 sftp-client.h(4.29 KB)
📄 sftp-common.c(6.83 KB)
📄 sftp-common.h(2.02 KB)
📄 sftp-glob.c(3.38 KB)
📄 sftp-server-main.c(1.49 KB)
📄 sftp-server.8(4.98 KB)
📄 sftp-server.c(42.36 KB)
📄 sftp.1(14.53 KB)
📄 sftp.c(59.73 KB)
📄 sftp.h(3.33 KB)
📄 smult_curve25519_ref.c(6.71 KB)
📄 ssh-add.1(6.45 KB)
📄 ssh-add.c(17.69 KB)
📄 ssh-agent.1(7.16 KB)
📄 ssh-agent.c(33.19 KB)
📄 ssh-dss.c(5.55 KB)
📄 ssh-ecdsa.c(5.54 KB)
📄 ssh-ed25519.c(4.21 KB)
📄 ssh-gss.h(4.71 KB)
📄 ssh-keygen.1(26.5 KB)
📄 ssh-keygen.c(78.58 KB)
📄 ssh-keyscan.1(3.82 KB)
📄 ssh-keyscan.c(17.83 KB)
📄 ssh-keysign.8(2.95 KB)
📄 ssh-keysign.c(8.26 KB)
📄 ssh-pkcs11-client.c(6.65 KB)
📄 ssh-pkcs11-helper.8(1.33 KB)
📄 ssh-pkcs11-helper.c(9.79 KB)
📄 ssh-pkcs11.c(19.56 KB)
📄 ssh-pkcs11.h(1.06 KB)
📄 ssh-rsa.c(11.89 KB)
📄 ssh-sandbox.h(1.09 KB)
📄 ssh-xmss.c(5 KB)
📄 ssh.1(44.3 KB)
📄 ssh.c(61.58 KB)
📄 ssh.h(2.6 KB)
📄 ssh2.h(5.66 KB)
📄 ssh_api.c(13.81 KB)
📄 ssh_api.h(4.33 KB)
📄 ssh_config(1.53 KB)
📄 ssh_config.5(51.41 KB)
📄 ssh_namespace.h(44.25 KB)
📄 sshbuf-getput-basic.c(11.81 KB)
📄 sshbuf-getput-crypto.c(5.64 KB)
📄 sshbuf-misc.c(3.53 KB)
📄 sshbuf.c(8.96 KB)
📄 sshbuf.h(12.2 KB)
📄 sshconnect.c(43.92 KB)
📄 sshconnect.h(2.3 KB)
📄 sshconnect2.c(59.05 KB)
📄 sshd.8(30.87 KB)
📄 sshd.c(64.58 KB)
📄 sshd_config(3.18 KB)
📄 sshd_config.5(50.55 KB)
📄 ssherr.c(5.04 KB)
📄 ssherr.h(3.28 KB)
📄 sshkey-xmss.c(28.17 KB)
📄 sshkey-xmss.h(2.89 KB)
📄 sshkey.c(102.94 KB)
📄 sshkey.h(10.09 KB)
📄 sshlogin.c(5.25 KB)
📄 sshlogin.h(935 B)
📄 sshpty.c(5.59 KB)
📄 sshpty.h(1.03 KB)
📄 sshtty.c(2.95 KB)
📄 survey.sh.in(1.68 KB)
📄 ttymodes.c(10.1 KB)
📄 ttymodes.h(4.85 KB)
📄 uidswap.c(7.09 KB)
📄 uidswap.h(680 B)
📄 umac.c(44.91 KB)
📄 umac.h(4.58 KB)
📄 umac128.c(414 B)
📄 utf8.c(8.09 KB)
📄 utf8.h(1.17 KB)
📄 uuencode.c(2.94 KB)
📄 uuencode.h(1.5 KB)
📄 verify.c(668 B)
📄 version.h(385 B)
📄 xmalloc.c(2.41 KB)
📄 xmalloc.h(1.08 KB)
📄 xmss_commons.c(630 B)
📄 xmss_commons.h(450 B)
📄 xmss_fast.c(32.16 KB)
📄 xmss_fast.h(3.64 KB)
📄 xmss_hash.c(3.35 KB)
📄 xmss_hash.h(841 B)
📄 xmss_hash_address.c(1.2 KB)
📄 xmss_hash_address.h(836 B)
📄 xmss_wots.c(4.74 KB)
📄 xmss_wots.h(1.86 KB)

Editing: authfile.c

/* $OpenBSD: authfile.c,v 1.131 2018/09/21 12:20:12 djm Exp $ */
/*
 * Copyright (c) 2000, 2013 Markus Friedl.  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 <sys/types.h>
#include <sys/stat.h>
#include <sys/uio.h>

#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>

#include "cipher.h"
#include "ssh.h"
#include "log.h"
#include "authfile.h"
#include "misc.h"
#include "atomicio.h"
#include "sshkey.h"
#include "sshbuf.h"
#include "ssherr.h"
#include "krl.h"

#define MAX_KEY_FILE_SIZE	(1024 * 1024)

/* Save a key blob to a file */
static int
sshkey_save_private_blob(struct sshbuf *keybuf, const char *filename)
{
	int fd, oerrno;

if ((fd = open(filename, O_WRONLY | O_CREAT | O_TRUNC, 0600)) < 0)
		return SSH_ERR_SYSTEM_ERROR;
	if (atomicio(vwrite, fd, sshbuf_mutable_ptr(keybuf),
	    sshbuf_len(keybuf)) != sshbuf_len(keybuf)) {
		oerrno = errno;
		close(fd);
		unlink(filename);
		errno = oerrno;
		return SSH_ERR_SYSTEM_ERROR;
	}
	close(fd);
	return 0;
}

int
sshkey_save_private(struct sshkey *key, const char *filename,
    const char *passphrase, const char *comment,
    int force_new_format, const char *new_format_cipher, int new_format_rounds)
{
	struct sshbuf *keyblob = NULL;
	int r;

if ((keyblob = sshbuf_new()) == NULL)
		return SSH_ERR_ALLOC_FAIL;
	if ((r = sshkey_private_to_fileblob(key, keyblob, passphrase, comment,
	    force_new_format, new_format_cipher, new_format_rounds)) != 0)
		goto out;
	if ((r = sshkey_save_private_blob(keyblob, filename)) != 0)
		goto out;
	r = 0;
 out:
	sshbuf_free(keyblob);
	return r;
}

/* Load a key from a fd into a buffer */
int
sshkey_load_file(int fd, struct sshbuf *blob)
{
	u_char buf[1024];
	size_t len;
	struct stat st;
	int r;

if (fstat(fd, &st) < 0)
		return SSH_ERR_SYSTEM_ERROR;
	if ((st.st_mode & (S_IFSOCK|S_IFCHR|S_IFIFO)) == 0 &&
	    st.st_size > MAX_KEY_FILE_SIZE)
		return SSH_ERR_INVALID_FORMAT;
	for (;;) {
		if ((len = atomicio(read, fd, buf, sizeof(buf))) == 0) {
			if (errno == EPIPE)
				break;
			r = SSH_ERR_SYSTEM_ERROR;
			goto out;
		}
		if ((r = sshbuf_put(blob, buf, len)) != 0)
			goto out;
		if (sshbuf_len(blob) > MAX_KEY_FILE_SIZE) {
			r = SSH_ERR_INVALID_FORMAT;
			goto out;
		}
	}
	if ((st.st_mode & (S_IFSOCK|S_IFCHR|S_IFIFO)) == 0 &&
	    st.st_size != (off_t)sshbuf_len(blob)) {
		r = SSH_ERR_FILE_CHANGED;
		goto out;
	}
	r = 0;

out:
	explicit_bzero(buf, sizeof(buf));
	if (r != 0)
		sshbuf_reset(blob);
	return r;
}

/* XXX remove error() calls from here? */
int
sshkey_perm_ok(int fd, const char *filename)
{
	struct stat st;

if (fstat(fd, &st) < 0)
		return SSH_ERR_SYSTEM_ERROR;
	/*
	 * if a key owned by the user is accessed, then we check the
	 * permissions of the file. if the key owned by a different user,
	 * then we don't care.
	 */
#ifdef HAVE_CYGWIN
	if (check_ntsec(filename))
#endif
	if ((st.st_uid == getuid()) && (st.st_mode & 077) != 0) {
		error("@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@");
		error("@         WARNING: UNPROTECTED PRIVATE KEY FILE!          @");
		error("@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@");
		error("Permissions 0%3.3o for '%s' are too open.",
		    (u_int)st.st_mode & 0777, filename);
		error("It is required that your private key files are NOT accessible by others.");
		error("This private key will be ignored.");
		return SSH_ERR_KEY_BAD_PERMISSIONS;
	}
	return 0;
}

/* XXX kill perm_ok now that we have SSH_ERR_KEY_BAD_PERMISSIONS? */
int
sshkey_load_private_type(int type, const char *filename, const char *passphrase,
    struct sshkey **keyp, char **commentp, int *perm_ok)
{
	int fd, r;

if (keyp != NULL)
		*keyp = NULL;
	if (commentp != NULL)
		*commentp = NULL;

if ((fd = open(filename, O_RDONLY)) < 0) {
		if (perm_ok != NULL)
			*perm_ok = 0;
		return SSH_ERR_SYSTEM_ERROR;
	}
	if (sshkey_perm_ok(fd, filename) != 0) {
		if (perm_ok != NULL)
			*perm_ok = 0;
		r = SSH_ERR_KEY_BAD_PERMISSIONS;
		goto out;
	}
	if (perm_ok != NULL)
		*perm_ok = 1;

r = sshkey_load_private_type_fd(fd, type, passphrase, keyp, commentp);
	if (r == 0 && keyp && *keyp)
		r = sshkey_set_filename(*keyp, filename);
 out:
	close(fd);
	return r;
}

int
sshkey_load_private_type_fd(int fd, int type, const char *passphrase,
    struct sshkey **keyp, char **commentp)
{
	struct sshbuf *buffer = NULL;
	int r;

if (keyp != NULL)
		*keyp = NULL;
	if ((buffer = sshbuf_new()) == NULL) {
		r = SSH_ERR_ALLOC_FAIL;
		goto out;
	}
	if ((r = sshkey_load_file(fd, buffer)) != 0 ||
	    (r = sshkey_parse_private_fileblob_type(buffer, type,
	    passphrase, keyp, commentp)) != 0)
		goto out;

/* success */
	r = 0;
 out:
	sshbuf_free(buffer);
	return r;
}

/* XXX this is almost identical to sshkey_load_private_type() */
int
sshkey_load_private(const char *filename, const char *passphrase,
    struct sshkey **keyp, char **commentp)
{
	struct sshbuf *buffer = NULL;
	int r, fd;

if (keyp != NULL)
		*keyp = NULL;
	if (commentp != NULL)
		*commentp = NULL;

if ((fd = open(filename, O_RDONLY)) < 0)
		return SSH_ERR_SYSTEM_ERROR;
	if (sshkey_perm_ok(fd, filename) != 0) {
		r = SSH_ERR_KEY_BAD_PERMISSIONS;
		goto out;
	}

if ((buffer = sshbuf_new()) == NULL) {
		r = SSH_ERR_ALLOC_FAIL;
		goto out;
	}
	if ((r = sshkey_load_file(fd, buffer)) != 0 ||
	    (r = sshkey_parse_private_fileblob(buffer, passphrase, keyp,
	    commentp)) != 0)
		goto out;
	if (keyp && *keyp &&
	    (r = sshkey_set_filename(*keyp, filename)) != 0)
		goto out;
	r = 0;
 out:
	close(fd);
	sshbuf_free(buffer);
	return r;
}

static int
sshkey_try_load_public(struct sshkey *k, const char *filename, char **commentp)
{
	FILE *f;
	char *line = NULL, *cp;
	size_t linesize = 0;
	int r;

if (commentp != NULL)
		*commentp = NULL;
	if ((f = fopen(filename, "r")) == NULL)
		return SSH_ERR_SYSTEM_ERROR;
	while (getline(&line, &linesize, f) != -1) {
		cp = line;
		switch (*cp) {
		case '#':
		case '\n':
		case '\0':
			continue;
		}
		/* Abort loading if this looks like a private key */
		if (strncmp(cp, "-----BEGIN", 10) == 0 ||
		    strcmp(cp, "SSH PRIVATE KEY FILE") == 0)
			break;
		/* Skip leading whitespace. */
		for (; *cp && (*cp == ' ' || *cp == '\t'); cp++)
			;
		if (*cp) {
			if ((r = sshkey_read(k, &cp)) == 0) {
				cp[strcspn(cp, "\r\n")] = '\0';
				if (commentp) {
					*commentp = strdup(*cp ?
					    cp : filename);
					if (*commentp == NULL)
						r = SSH_ERR_ALLOC_FAIL;
				}
				free(line);
				fclose(f);
				return r;
			}
		}
	}
	free(line);
	fclose(f);
	return SSH_ERR_INVALID_FORMAT;
}

/* load public key from any pubkey file */
int
sshkey_load_public(const char *filename, struct sshkey **keyp, char **commentp)
{
	struct sshkey *pub = NULL;
	char *file = NULL;
	int r;

if (keyp != NULL)
		*keyp = NULL;
	if (commentp != NULL)
		*commentp = NULL;

if ((pub = sshkey_new(KEY_UNSPEC)) == NULL)
		return SSH_ERR_ALLOC_FAIL;
	if ((r = sshkey_try_load_public(pub, filename, commentp)) == 0) {
		if (keyp != NULL) {
			*keyp = pub;
			pub = NULL;
		}
		r = 0;
		goto out;
	}
	sshkey_free(pub);

/* try .pub suffix */
	if (asprintf(&file, "%s.pub", filename) == -1)
		return SSH_ERR_ALLOC_FAIL;
	if ((pub = sshkey_new(KEY_UNSPEC)) == NULL) {
		r = SSH_ERR_ALLOC_FAIL;
		goto out;
	}
	if ((r = sshkey_try_load_public(pub, file, commentp)) == 0) {
		if (keyp != NULL) {
			*keyp = pub;
			pub = NULL;
		}
		r = 0;
	}
 out:
	free(file);
	sshkey_free(pub);
	return r;
}

/* Load the certificate associated with the named private key */
int
sshkey_load_cert(const char *filename, struct sshkey **keyp)
{
	struct sshkey *pub = NULL;
	char *file = NULL;
	int r = SSH_ERR_INTERNAL_ERROR;

if (keyp != NULL)
		*keyp = NULL;

if (asprintf(&file, "%s-cert.pub", filename) == -1)
		return SSH_ERR_ALLOC_FAIL;

if ((pub = sshkey_new(KEY_UNSPEC)) == NULL) {
		goto out;
	}
	if ((r = sshkey_try_load_public(pub, file, NULL)) != 0)
		goto out;
	/* success */
	if (keyp != NULL) {
		*keyp = pub;
		pub = NULL;
	}
	r = 0;
 out:
	free(file);
	sshkey_free(pub);
	return r;
}

/* Load private key and certificate */
int
sshkey_load_private_cert(int type, const char *filename, const char *passphrase,
    struct sshkey **keyp, int *perm_ok)
{
	struct sshkey *key = NULL, *cert = NULL;
	int r;

if (keyp != NULL)
		*keyp = NULL;

switch (type) {
#ifdef WITH_OPENSSL
	case KEY_RSA:
	case KEY_DSA:
	case KEY_ECDSA:
#endif /* WITH_OPENSSL */
	case KEY_ED25519:
	case KEY_XMSS:
	case KEY_UNSPEC:
		break;
	default:
		return SSH_ERR_KEY_TYPE_UNKNOWN;
	}

if ((r = sshkey_load_private_type(type, filename,
	    passphrase, &key, NULL, perm_ok)) != 0 ||
	    (r = sshkey_load_cert(filename, &cert)) != 0)
		goto out;

/* Make sure the private key matches the certificate */
	if (sshkey_equal_public(key, cert) == 0) {
		r = SSH_ERR_KEY_CERT_MISMATCH;
		goto out;
	}

if ((r = sshkey_to_certified(key)) != 0 ||
	    (r = sshkey_cert_copy(cert, key)) != 0)
		goto out;
	r = 0;
	if (keyp != NULL) {
		*keyp = key;
		key = NULL;
	}
 out:
	sshkey_free(key);
	sshkey_free(cert);
	return r;
}

/*
 * Returns success if the specified "key" is listed in the file "filename",
 * SSH_ERR_KEY_NOT_FOUND: if the key is not listed or another error.
 * If "strict_type" is set then the key type must match exactly,
 * otherwise a comparison that ignores certficiate data is performed.
 * If "check_ca" is set and "key" is a certificate, then its CA key is
 * also checked and sshkey_in_file() will return success if either is found.
 */
int
sshkey_in_file(struct sshkey *key, const char *filename, int strict_type,
    int check_ca)
{
	FILE *f;
	char *line = NULL, *cp;
	size_t linesize = 0;
	int r = 0;
	struct sshkey *pub = NULL;

int (*sshkey_compare)(const struct sshkey *, const struct sshkey *) =
	    strict_type ?  sshkey_equal : sshkey_equal_public;

if ((f = fopen(filename, "r")) == NULL)
		return SSH_ERR_SYSTEM_ERROR;

while (getline(&line, &linesize, f) != -1) {
		sshkey_free(pub);
		pub = NULL;
		cp = line;

/* Skip leading whitespace. */
		for (; *cp && (*cp == ' ' || *cp == '\t'); cp++)
			;

/* Skip comments and empty lines */
		switch (*cp) {
		case '#':
		case '\n':
		case '\0':
			continue;
		}

if ((pub = sshkey_new(KEY_UNSPEC)) == NULL) {
			r = SSH_ERR_ALLOC_FAIL;
			goto out;
		}
		switch (r = sshkey_read(pub, &cp)) {
		case 0:
			break;
		case SSH_ERR_KEY_LENGTH:
			continue;
		default:
			goto out;
		}
		if (sshkey_compare(key, pub) ||
		    (check_ca && sshkey_is_cert(key) &&
		    sshkey_compare(key->cert->signature_key, pub))) {
			r = 0;
			goto out;
		}
	}
	r = SSH_ERR_KEY_NOT_FOUND;
 out:
	free(line);
	sshkey_free(pub);
	fclose(f);
	return r;
}

/*
 * Checks whether the specified key is revoked, returning 0 if not,
 * SSH_ERR_KEY_REVOKED if it is or another error code if something
 * unexpected happened.
 * This will check both the key and, if it is a certificate, its CA key too.
 * "revoked_keys_file" may be a KRL or a one-per-line list of public keys.
 */
int
sshkey_check_revoked(struct sshkey *key, const char *revoked_keys_file)
{
	int r;

r = ssh_krl_file_contains_key(revoked_keys_file, key);
	/* If this was not a KRL to begin with then continue below */
	if (r != SSH_ERR_KRL_BAD_MAGIC)
		return r;

/*
	 * If the file is not a KRL or we can't handle KRLs then attempt to
	 * parse the file as a flat list of keys.
	 */
	switch ((r = sshkey_in_file(key, revoked_keys_file, 0, 1))) {
	case 0:
		/* Key found => revoked */
		return SSH_ERR_KEY_REVOKED;
	case SSH_ERR_KEY_NOT_FOUND:
		/* Key not found => not revoked */
		return 0;
	default:
		/* Some other error occurred */
		return r;
	}
}

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