2018-08-28 10:47:58 +00:00
|
|
|
/* $OpenBSD: hostfile.c,v 1.73 2018/07/16 03:09:13 djm Exp $ */
|
2000-02-24 14:29:47 +00:00
|
|
|
/*
|
|
|
|
* Author: Tatu Ylonen <ylo@cs.hut.fi>
|
|
|
|
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
|
|
|
|
* All rights reserved
|
2000-09-10 08:31:17 +00:00
|
|
|
* Functions for manipulating the known hosts files.
|
2000-05-15 04:37:24 +00:00
|
|
|
*
|
2000-09-10 08:31:17 +00:00
|
|
|
* As far as I am concerned, the code I have written for this software
|
|
|
|
* can be used freely for any purpose. Any derived versions of this
|
|
|
|
* software must be clearly marked as such, and if the derived work is
|
|
|
|
* incompatible with the protocol description in the RFC file, it must be
|
|
|
|
* called by a name other than "ssh" or "Secure Shell".
|
2000-05-15 04:37:24 +00:00
|
|
|
*
|
|
|
|
*
|
2002-03-18 09:55:03 +00:00
|
|
|
* Copyright (c) 1999, 2000 Markus Friedl. All rights reserved.
|
2000-09-10 08:31:17 +00:00
|
|
|
* Copyright (c) 1999 Niels Provos. 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.
|
2000-02-24 14:29:47 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
#include "includes.h"
|
2005-06-05 15:40:50 +00:00
|
|
|
|
2006-09-30 13:29:51 +00:00
|
|
|
#include <sys/types.h>
|
2015-07-02 13:15:34 +00:00
|
|
|
#include <sys/stat.h>
|
2006-09-30 13:29:51 +00:00
|
|
|
|
|
|
|
#include <netinet/in.h>
|
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
#include <errno.h>
|
2006-09-30 13:29:51 +00:00
|
|
|
#include <resolv.h>
|
|
|
|
#include <stdarg.h>
|
|
|
|
#include <stdio.h>
|
|
|
|
#include <stdlib.h>
|
|
|
|
#include <string.h>
|
2015-01-05 16:09:55 +00:00
|
|
|
#include <stdarg.h>
|
2015-07-02 13:15:34 +00:00
|
|
|
#include <unistd.h>
|
2006-09-30 13:29:51 +00:00
|
|
|
|
|
|
|
#include "xmalloc.h"
|
2000-03-26 07:07:24 +00:00
|
|
|
#include "match.h"
|
2015-07-02 13:15:34 +00:00
|
|
|
#include "sshkey.h"
|
2000-03-26 07:07:24 +00:00
|
|
|
#include "hostfile.h"
|
2001-05-04 03:57:05 +00:00
|
|
|
#include "log.h"
|
2011-02-17 11:47:40 +00:00
|
|
|
#include "misc.h"
|
2015-07-02 13:15:34 +00:00
|
|
|
#include "ssherr.h"
|
2014-01-30 10:56:49 +00:00
|
|
|
#include "digest.h"
|
2014-03-22 15:23:38 +00:00
|
|
|
#include "hmac.h"
|
2011-02-17 11:47:40 +00:00
|
|
|
|
|
|
|
struct hostkeys {
|
|
|
|
struct hostkey_entry *entries;
|
|
|
|
u_int num_entries;
|
|
|
|
};
|
2005-06-05 15:40:50 +00:00
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
/* XXX hmac is too easy to dictionary attack; use bcrypt? */
|
|
|
|
|
2005-06-05 15:40:50 +00:00
|
|
|
static int
|
2013-09-18 17:27:38 +00:00
|
|
|
extract_salt(const char *s, u_int l, u_char *salt, size_t salt_len)
|
2005-06-05 15:40:50 +00:00
|
|
|
{
|
|
|
|
char *p, *b64salt;
|
|
|
|
u_int b64len;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (l < sizeof(HASH_MAGIC) - 1) {
|
|
|
|
debug2("extract_salt: string too short");
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
if (strncmp(s, HASH_MAGIC, sizeof(HASH_MAGIC) - 1) != 0) {
|
|
|
|
debug2("extract_salt: invalid magic identifier");
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
s += sizeof(HASH_MAGIC) - 1;
|
|
|
|
l -= sizeof(HASH_MAGIC) - 1;
|
|
|
|
if ((p = memchr(s, HASH_DELIM, l)) == NULL) {
|
|
|
|
debug2("extract_salt: missing salt termination character");
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
|
|
|
|
b64len = p - s;
|
|
|
|
/* Sanity check */
|
|
|
|
if (b64len == 0 || b64len > 1024) {
|
|
|
|
debug2("extract_salt: bad encoded salt length %u", b64len);
|
|
|
|
return (-1);
|
|
|
|
}
|
|
|
|
b64salt = xmalloc(1 + b64len);
|
|
|
|
memcpy(b64salt, s, b64len);
|
|
|
|
b64salt[b64len] = '\0';
|
|
|
|
|
|
|
|
ret = __b64_pton(b64salt, salt, salt_len);
|
2013-09-18 17:27:38 +00:00
|
|
|
free(b64salt);
|
2005-06-05 15:40:50 +00:00
|
|
|
if (ret == -1) {
|
|
|
|
debug2("extract_salt: salt decode error");
|
|
|
|
return (-1);
|
|
|
|
}
|
2014-03-22 15:23:38 +00:00
|
|
|
if (ret != (int)ssh_hmac_bytes(SSH_DIGEST_SHA1)) {
|
|
|
|
debug2("extract_salt: expected salt len %zd, got %d",
|
|
|
|
ssh_hmac_bytes(SSH_DIGEST_SHA1), ret);
|
2005-06-05 15:40:50 +00:00
|
|
|
return (-1);
|
|
|
|
}
|
2005-06-05 15:41:57 +00:00
|
|
|
|
2005-06-05 15:40:50 +00:00
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
|
|
|
char *
|
|
|
|
host_hash(const char *host, const char *name_from_hostfile, u_int src_len)
|
|
|
|
{
|
2014-03-22 15:23:38 +00:00
|
|
|
struct ssh_hmac_ctx *ctx;
|
2013-09-18 17:27:38 +00:00
|
|
|
u_char salt[256], result[256];
|
|
|
|
char uu_salt[512], uu_result[512];
|
2005-06-05 15:40:50 +00:00
|
|
|
static char encoded[1024];
|
2017-01-31 12:33:47 +00:00
|
|
|
u_int len;
|
2005-06-05 15:40:50 +00:00
|
|
|
|
2014-03-22 15:23:38 +00:00
|
|
|
len = ssh_digest_bytes(SSH_DIGEST_SHA1);
|
2005-06-05 15:40:50 +00:00
|
|
|
|
|
|
|
if (name_from_hostfile == NULL) {
|
|
|
|
/* Create new salt */
|
2017-01-31 12:33:47 +00:00
|
|
|
arc4random_buf(salt, len);
|
2005-06-05 15:40:50 +00:00
|
|
|
} else {
|
|
|
|
/* Extract salt from known host entry */
|
|
|
|
if (extract_salt(name_from_hostfile, src_len, salt,
|
|
|
|
sizeof(salt)) == -1)
|
|
|
|
return (NULL);
|
|
|
|
}
|
|
|
|
|
2014-03-22 15:23:38 +00:00
|
|
|
if ((ctx = ssh_hmac_start(SSH_DIGEST_SHA1)) == NULL ||
|
|
|
|
ssh_hmac_init(ctx, salt, len) < 0 ||
|
|
|
|
ssh_hmac_update(ctx, host, strlen(host)) < 0 ||
|
|
|
|
ssh_hmac_final(ctx, result, sizeof(result)))
|
|
|
|
fatal("%s: ssh_hmac failed", __func__);
|
|
|
|
ssh_hmac_free(ctx);
|
2005-06-05 15:40:50 +00:00
|
|
|
|
2005-06-05 15:41:57 +00:00
|
|
|
if (__b64_ntop(salt, len, uu_salt, sizeof(uu_salt)) == -1 ||
|
2005-06-05 15:40:50 +00:00
|
|
|
__b64_ntop(result, len, uu_result, sizeof(uu_result)) == -1)
|
2014-03-22 15:23:38 +00:00
|
|
|
fatal("%s: __b64_ntop failed", __func__);
|
2005-06-05 15:40:50 +00:00
|
|
|
|
|
|
|
snprintf(encoded, sizeof(encoded), "%s%s%c%s", HASH_MAGIC, uu_salt,
|
|
|
|
HASH_DELIM, uu_result);
|
|
|
|
|
|
|
|
return (encoded);
|
|
|
|
}
|
2000-02-24 14:29:47 +00:00
|
|
|
|
|
|
|
/*
|
2000-03-26 07:07:24 +00:00
|
|
|
* Parses an RSA (number of bits, e, n) or DSA key from a string. Moves the
|
|
|
|
* pointer over the key. Skips any whitespace at the beginning and at end.
|
2000-02-24 14:29:47 +00:00
|
|
|
*/
|
|
|
|
|
|
|
|
int
|
2015-07-02 13:15:34 +00:00
|
|
|
hostfile_read_key(char **cpp, u_int *bitsp, struct sshkey *ret)
|
2000-02-24 14:29:47 +00:00
|
|
|
{
|
|
|
|
char *cp;
|
2015-07-02 13:15:34 +00:00
|
|
|
int r;
|
2000-02-24 14:29:47 +00:00
|
|
|
|
|
|
|
/* Skip leading whitespace. */
|
|
|
|
for (cp = *cpp; *cp == ' ' || *cp == '\t'; cp++)
|
|
|
|
;
|
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
if ((r = sshkey_read(ret, &cp)) != 0)
|
2000-02-24 14:29:47 +00:00
|
|
|
return 0;
|
|
|
|
|
|
|
|
/* Skip trailing whitespace. */
|
|
|
|
for (; *cp == ' ' || *cp == '\t'; cp++)
|
|
|
|
;
|
|
|
|
|
|
|
|
/* Return results. */
|
|
|
|
*cpp = cp;
|
2015-07-02 13:15:34 +00:00
|
|
|
if (bitsp != NULL)
|
|
|
|
*bitsp = sshkey_size(ret);
|
2000-03-26 07:07:24 +00:00
|
|
|
return 1;
|
2000-02-24 14:29:47 +00:00
|
|
|
}
|
|
|
|
|
2011-02-17 11:47:40 +00:00
|
|
|
static HostkeyMarker
|
2010-03-08 11:19:52 +00:00
|
|
|
check_markers(char **cpp)
|
|
|
|
{
|
|
|
|
char marker[32], *sp, *cp = *cpp;
|
|
|
|
int ret = MRK_NONE;
|
|
|
|
|
|
|
|
while (*cp == '@') {
|
|
|
|
/* Only one marker is allowed */
|
|
|
|
if (ret != MRK_NONE)
|
|
|
|
return MRK_ERROR;
|
|
|
|
/* Markers are terminated by whitespace */
|
|
|
|
if ((sp = strchr(cp, ' ')) == NULL &&
|
|
|
|
(sp = strchr(cp, '\t')) == NULL)
|
|
|
|
return MRK_ERROR;
|
|
|
|
/* Extract marker for comparison */
|
|
|
|
if (sp <= cp + 1 || sp >= cp + sizeof(marker))
|
|
|
|
return MRK_ERROR;
|
|
|
|
memcpy(marker, cp, sp - cp);
|
|
|
|
marker[sp - cp] = '\0';
|
|
|
|
if (strcmp(marker, CA_MARKER) == 0)
|
|
|
|
ret = MRK_CA;
|
|
|
|
else if (strcmp(marker, REVOKE_MARKER) == 0)
|
|
|
|
ret = MRK_REVOKE;
|
|
|
|
else
|
|
|
|
return MRK_ERROR;
|
|
|
|
|
|
|
|
/* Skip past marker and any whitespace that follows it */
|
|
|
|
cp = sp;
|
|
|
|
for (; *cp == ' ' || *cp == '\t'; cp++)
|
|
|
|
;
|
|
|
|
}
|
|
|
|
*cpp = cp;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2011-02-17 11:47:40 +00:00
|
|
|
struct hostkeys *
|
|
|
|
init_hostkeys(void)
|
|
|
|
{
|
|
|
|
struct hostkeys *ret = xcalloc(1, sizeof(*ret));
|
2000-02-24 14:29:47 +00:00
|
|
|
|
2011-02-17 11:47:40 +00:00
|
|
|
ret->entries = NULL;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
struct load_callback_ctx {
|
|
|
|
const char *host;
|
|
|
|
u_long num_loaded;
|
|
|
|
struct hostkeys *hostkeys;
|
|
|
|
};
|
2010-03-08 11:19:52 +00:00
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
static int
|
|
|
|
record_hostkey(struct hostkey_foreach_line *l, void *_ctx)
|
|
|
|
{
|
|
|
|
struct load_callback_ctx *ctx = (struct load_callback_ctx *)_ctx;
|
|
|
|
struct hostkeys *hostkeys = ctx->hostkeys;
|
|
|
|
struct hostkey_entry *tmp;
|
2000-02-24 14:29:47 +00:00
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
if (l->status == HKF_STATUS_INVALID) {
|
2015-07-02 13:18:50 +00:00
|
|
|
/* XXX make this verbose() in the future */
|
|
|
|
debug("%s:%ld: parse error in hostkeys file",
|
2015-07-02 13:15:34 +00:00
|
|
|
l->path, l->linenum);
|
|
|
|
return 0;
|
|
|
|
}
|
2000-02-24 14:29:47 +00:00
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
debug3("%s: found %skey type %s in file %s:%lu", __func__,
|
|
|
|
l->marker == MRK_NONE ? "" :
|
|
|
|
(l->marker == MRK_CA ? "ca " : "revoked "),
|
|
|
|
sshkey_type(l->key), l->path, l->linenum);
|
2018-05-06 12:24:45 +00:00
|
|
|
if ((tmp = recallocarray(hostkeys->entries, hostkeys->num_entries,
|
2015-07-02 13:15:34 +00:00
|
|
|
hostkeys->num_entries + 1, sizeof(*hostkeys->entries))) == NULL)
|
|
|
|
return SSH_ERR_ALLOC_FAIL;
|
|
|
|
hostkeys->entries = tmp;
|
|
|
|
hostkeys->entries[hostkeys->num_entries].host = xstrdup(ctx->host);
|
|
|
|
hostkeys->entries[hostkeys->num_entries].file = xstrdup(l->path);
|
|
|
|
hostkeys->entries[hostkeys->num_entries].line = l->linenum;
|
|
|
|
hostkeys->entries[hostkeys->num_entries].key = l->key;
|
|
|
|
l->key = NULL; /* steal it */
|
|
|
|
hostkeys->entries[hostkeys->num_entries].marker = l->marker;
|
|
|
|
hostkeys->num_entries++;
|
|
|
|
ctx->num_loaded++;
|
2000-02-24 14:29:47 +00:00
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2000-02-24 14:29:47 +00:00
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
void
|
|
|
|
load_hostkeys(struct hostkeys *hostkeys, const char *host, const char *path)
|
|
|
|
{
|
|
|
|
int r;
|
|
|
|
struct load_callback_ctx ctx;
|
|
|
|
|
|
|
|
ctx.host = host;
|
|
|
|
ctx.num_loaded = 0;
|
|
|
|
ctx.hostkeys = hostkeys;
|
|
|
|
|
|
|
|
if ((r = hostkeys_foreach(path, record_hostkey, &ctx, host, NULL,
|
|
|
|
HKF_WANT_MATCH|HKF_WANT_PARSE_KEY)) != 0) {
|
|
|
|
if (r != SSH_ERR_SYSTEM_ERROR && errno != ENOENT)
|
|
|
|
debug("%s: hostkeys_foreach failed for %s: %s",
|
|
|
|
__func__, path, ssh_err(r));
|
2011-02-17 11:47:40 +00:00
|
|
|
}
|
2015-07-02 13:15:34 +00:00
|
|
|
if (ctx.num_loaded != 0)
|
|
|
|
debug3("%s: loaded %lu keys from %s", __func__,
|
|
|
|
ctx.num_loaded, host);
|
|
|
|
}
|
2001-05-04 03:57:05 +00:00
|
|
|
|
2011-02-17 11:47:40 +00:00
|
|
|
void
|
|
|
|
free_hostkeys(struct hostkeys *hostkeys)
|
|
|
|
{
|
|
|
|
u_int i;
|
|
|
|
|
|
|
|
for (i = 0; i < hostkeys->num_entries; i++) {
|
2013-09-18 17:27:38 +00:00
|
|
|
free(hostkeys->entries[i].host);
|
|
|
|
free(hostkeys->entries[i].file);
|
2015-07-02 13:15:34 +00:00
|
|
|
sshkey_free(hostkeys->entries[i].key);
|
2014-03-22 15:23:38 +00:00
|
|
|
explicit_bzero(hostkeys->entries + i, sizeof(*hostkeys->entries));
|
2011-02-17 11:47:40 +00:00
|
|
|
}
|
2013-09-18 17:27:38 +00:00
|
|
|
free(hostkeys->entries);
|
2014-03-22 15:23:38 +00:00
|
|
|
explicit_bzero(hostkeys, sizeof(*hostkeys));
|
2013-09-18 17:27:38 +00:00
|
|
|
free(hostkeys);
|
2011-02-17 11:47:40 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
2015-07-02 13:15:34 +00:00
|
|
|
check_key_not_revoked(struct hostkeys *hostkeys, struct sshkey *k)
|
2011-02-17 11:47:40 +00:00
|
|
|
{
|
2015-07-02 13:15:34 +00:00
|
|
|
int is_cert = sshkey_is_cert(k);
|
2011-02-17 11:47:40 +00:00
|
|
|
u_int i;
|
2002-10-29 09:43:00 +00:00
|
|
|
|
2011-02-17 11:47:40 +00:00
|
|
|
for (i = 0; i < hostkeys->num_entries; i++) {
|
|
|
|
if (hostkeys->entries[i].marker != MRK_REVOKE)
|
2002-10-29 09:43:00 +00:00
|
|
|
continue;
|
2015-07-02 13:15:34 +00:00
|
|
|
if (sshkey_equal_public(k, hostkeys->entries[i].key))
|
2011-02-17 11:47:40 +00:00
|
|
|
return -1;
|
|
|
|
if (is_cert &&
|
2015-07-02 13:15:34 +00:00
|
|
|
sshkey_equal_public(k->cert->signature_key,
|
2011-02-17 11:47:40 +00:00
|
|
|
hostkeys->entries[i].key))
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
2002-10-29 09:43:00 +00:00
|
|
|
|
2011-02-17 11:47:40 +00:00
|
|
|
/*
|
|
|
|
* Match keys against a specified key, or look one up by key type.
|
|
|
|
*
|
|
|
|
* If looking for a keytype (key == NULL) and one is found then return
|
|
|
|
* HOST_FOUND, otherwise HOST_NEW.
|
|
|
|
*
|
|
|
|
* If looking for a key (key != NULL):
|
|
|
|
* 1. If the key is a cert and a matching CA is found, return HOST_OK
|
|
|
|
* 2. If the key is not a cert and a matching key is found, return HOST_OK
|
|
|
|
* 3. If no key matches but a key with a different type is found, then
|
|
|
|
* return HOST_CHANGED
|
|
|
|
* 4. If no matching keys are found, then return HOST_NEW.
|
|
|
|
*
|
|
|
|
* Finally, check any found key is not revoked.
|
|
|
|
*/
|
|
|
|
static HostStatus
|
|
|
|
check_hostkeys_by_key_or_type(struct hostkeys *hostkeys,
|
2015-07-02 13:15:34 +00:00
|
|
|
struct sshkey *k, int keytype, const struct hostkey_entry **found)
|
2011-02-17 11:47:40 +00:00
|
|
|
{
|
|
|
|
u_int i;
|
|
|
|
HostStatus end_return = HOST_NEW;
|
2015-07-02 13:15:34 +00:00
|
|
|
int want_cert = sshkey_is_cert(k);
|
2011-02-17 11:47:40 +00:00
|
|
|
HostkeyMarker want_marker = want_cert ? MRK_CA : MRK_NONE;
|
|
|
|
|
|
|
|
if (found != NULL)
|
|
|
|
*found = NULL;
|
|
|
|
|
|
|
|
for (i = 0; i < hostkeys->num_entries; i++) {
|
|
|
|
if (hostkeys->entries[i].marker != want_marker)
|
|
|
|
continue;
|
|
|
|
if (k == NULL) {
|
|
|
|
if (hostkeys->entries[i].key->type != keytype)
|
|
|
|
continue;
|
|
|
|
end_return = HOST_FOUND;
|
|
|
|
if (found != NULL)
|
|
|
|
*found = hostkeys->entries + i;
|
|
|
|
k = hostkeys->entries[i].key;
|
|
|
|
break;
|
2010-03-08 11:19:52 +00:00
|
|
|
}
|
2011-02-17 11:47:40 +00:00
|
|
|
if (want_cert) {
|
2015-07-02 13:15:34 +00:00
|
|
|
if (sshkey_equal_public(k->cert->signature_key,
|
2011-02-17 11:47:40 +00:00
|
|
|
hostkeys->entries[i].key)) {
|
|
|
|
/* A matching CA exists */
|
|
|
|
end_return = HOST_OK;
|
|
|
|
if (found != NULL)
|
|
|
|
*found = hostkeys->entries + i;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
} else {
|
2015-07-02 13:15:34 +00:00
|
|
|
if (sshkey_equal(k, hostkeys->entries[i].key)) {
|
2011-02-17 11:47:40 +00:00
|
|
|
end_return = HOST_OK;
|
|
|
|
if (found != NULL)
|
|
|
|
*found = hostkeys->entries + i;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
/* A non-maching key exists */
|
|
|
|
end_return = HOST_CHANGED;
|
|
|
|
if (found != NULL)
|
|
|
|
*found = hostkeys->entries + i;
|
2000-02-24 14:29:47 +00:00
|
|
|
}
|
|
|
|
}
|
2011-02-17 11:47:40 +00:00
|
|
|
if (check_key_not_revoked(hostkeys, k) != 0) {
|
|
|
|
end_return = HOST_REVOKED;
|
|
|
|
if (found != NULL)
|
|
|
|
*found = NULL;
|
|
|
|
}
|
2000-02-24 14:29:47 +00:00
|
|
|
return end_return;
|
|
|
|
}
|
2015-07-02 13:15:34 +00:00
|
|
|
|
2002-10-29 09:43:00 +00:00
|
|
|
HostStatus
|
2015-07-02 13:15:34 +00:00
|
|
|
check_key_in_hostkeys(struct hostkeys *hostkeys, struct sshkey *key,
|
2011-02-17 11:47:40 +00:00
|
|
|
const struct hostkey_entry **found)
|
2002-10-29 09:43:00 +00:00
|
|
|
{
|
|
|
|
if (key == NULL)
|
|
|
|
fatal("no key to look up");
|
2011-02-17 11:47:40 +00:00
|
|
|
return check_hostkeys_by_key_or_type(hostkeys, key, 0, found);
|
2002-10-29 09:43:00 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int
|
2011-02-17 11:47:40 +00:00
|
|
|
lookup_key_in_hostkeys_by_type(struct hostkeys *hostkeys, int keytype,
|
|
|
|
const struct hostkey_entry **found)
|
2002-10-29 09:43:00 +00:00
|
|
|
{
|
2011-02-17 11:47:40 +00:00
|
|
|
return (check_hostkeys_by_key_or_type(hostkeys, NULL, keytype,
|
|
|
|
found) == HOST_FOUND);
|
2002-10-29 09:43:00 +00:00
|
|
|
}
|
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
static int
|
|
|
|
write_host_entry(FILE *f, const char *host, const char *ip,
|
|
|
|
const struct sshkey *key, int store_hash)
|
|
|
|
{
|
|
|
|
int r, success = 0;
|
2017-08-03 10:10:20 +00:00
|
|
|
char *hashed_host = NULL, *lhost;
|
|
|
|
|
|
|
|
lhost = xstrdup(host);
|
|
|
|
lowercase(lhost);
|
2015-07-02 13:15:34 +00:00
|
|
|
|
|
|
|
if (store_hash) {
|
2017-08-03 10:10:20 +00:00
|
|
|
if ((hashed_host = host_hash(lhost, NULL, 0)) == NULL) {
|
2015-07-02 13:15:34 +00:00
|
|
|
error("%s: host_hash failed", __func__);
|
2017-08-03 10:10:20 +00:00
|
|
|
free(lhost);
|
2015-07-02 13:15:34 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
fprintf(f, "%s ", hashed_host);
|
|
|
|
} else if (ip != NULL)
|
2017-08-03 10:10:20 +00:00
|
|
|
fprintf(f, "%s,%s ", lhost, ip);
|
|
|
|
else {
|
|
|
|
fprintf(f, "%s ", lhost);
|
|
|
|
}
|
|
|
|
free(lhost);
|
2015-07-02 13:15:34 +00:00
|
|
|
if ((r = sshkey_write(key, f)) == 0)
|
|
|
|
success = 1;
|
|
|
|
else
|
|
|
|
error("%s: sshkey_write failed: %s", __func__, ssh_err(r));
|
|
|
|
fputc('\n', f);
|
|
|
|
return success;
|
|
|
|
}
|
|
|
|
|
2000-02-24 14:29:47 +00:00
|
|
|
/*
|
|
|
|
* Appends an entry to the host file. Returns false if the entry could not
|
|
|
|
* be appended.
|
|
|
|
*/
|
|
|
|
int
|
2015-07-02 13:15:34 +00:00
|
|
|
add_host_to_hostfile(const char *filename, const char *host,
|
|
|
|
const struct sshkey *key, int store_hash)
|
2000-02-24 14:29:47 +00:00
|
|
|
{
|
|
|
|
FILE *f;
|
2015-07-02 13:15:34 +00:00
|
|
|
int success;
|
2005-06-05 15:40:50 +00:00
|
|
|
|
2000-03-26 07:07:24 +00:00
|
|
|
if (key == NULL)
|
2000-05-15 04:37:24 +00:00
|
|
|
return 1; /* XXX ? */
|
2000-02-24 14:29:47 +00:00
|
|
|
f = fopen(filename, "a");
|
|
|
|
if (!f)
|
|
|
|
return 0;
|
2015-07-02 13:15:34 +00:00
|
|
|
success = write_host_entry(f, host, NULL, key, store_hash);
|
|
|
|
fclose(f);
|
|
|
|
return success;
|
|
|
|
}
|
2005-06-05 15:40:50 +00:00
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
struct host_delete_ctx {
|
|
|
|
FILE *out;
|
|
|
|
int quiet;
|
|
|
|
const char *host;
|
|
|
|
int *skip_keys; /* XXX split for host/ip? might want to ensure both */
|
|
|
|
struct sshkey * const *keys;
|
|
|
|
size_t nkeys;
|
|
|
|
int modified;
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
host_delete(struct hostkey_foreach_line *l, void *_ctx)
|
|
|
|
{
|
|
|
|
struct host_delete_ctx *ctx = (struct host_delete_ctx *)_ctx;
|
|
|
|
int loglevel = ctx->quiet ? SYSLOG_LEVEL_DEBUG1 : SYSLOG_LEVEL_VERBOSE;
|
|
|
|
size_t i;
|
|
|
|
|
|
|
|
if (l->status == HKF_STATUS_MATCHED) {
|
|
|
|
if (l->marker != MRK_NONE) {
|
|
|
|
/* Don't remove CA and revocation lines */
|
|
|
|
fprintf(ctx->out, "%s\n", l->line);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* If this line contains one of the keys that we will be
|
|
|
|
* adding later, then don't change it and mark the key for
|
|
|
|
* skipping.
|
|
|
|
*/
|
|
|
|
for (i = 0; i < ctx->nkeys; i++) {
|
|
|
|
if (sshkey_equal(ctx->keys[i], l->key)) {
|
|
|
|
ctx->skip_keys[i] = 1;
|
|
|
|
fprintf(ctx->out, "%s\n", l->line);
|
|
|
|
debug3("%s: %s key already at %s:%ld", __func__,
|
|
|
|
sshkey_type(l->key), l->path, l->linenum);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Hostname matches and has no CA/revoke marker, delete it
|
|
|
|
* by *not* writing the line to ctx->out.
|
|
|
|
*/
|
|
|
|
do_log2(loglevel, "%s%s%s:%ld: Removed %s key for host %s",
|
|
|
|
ctx->quiet ? __func__ : "", ctx->quiet ? ": " : "",
|
|
|
|
l->path, l->linenum, sshkey_type(l->key), ctx->host);
|
|
|
|
ctx->modified = 1;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
/* Retain non-matching hosts and invalid lines when deleting */
|
|
|
|
if (l->status == HKF_STATUS_INVALID) {
|
|
|
|
do_log2(loglevel, "%s%s%s:%ld: invalid known_hosts entry",
|
|
|
|
ctx->quiet ? __func__ : "", ctx->quiet ? ": " : "",
|
|
|
|
l->path, l->linenum);
|
2005-06-05 15:40:50 +00:00
|
|
|
}
|
2015-07-02 13:15:34 +00:00
|
|
|
fprintf(ctx->out, "%s\n", l->line);
|
|
|
|
return 0;
|
|
|
|
}
|
2005-06-05 15:40:50 +00:00
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
int
|
|
|
|
hostfile_replace_entries(const char *filename, const char *host, const char *ip,
|
|
|
|
struct sshkey **keys, size_t nkeys, int store_hash, int quiet, int hash_alg)
|
|
|
|
{
|
|
|
|
int r, fd, oerrno = 0;
|
|
|
|
int loglevel = quiet ? SYSLOG_LEVEL_DEBUG1 : SYSLOG_LEVEL_VERBOSE;
|
|
|
|
struct host_delete_ctx ctx;
|
|
|
|
char *fp, *temp = NULL, *back = NULL;
|
|
|
|
mode_t omask;
|
|
|
|
size_t i;
|
|
|
|
|
|
|
|
omask = umask(077);
|
|
|
|
|
|
|
|
memset(&ctx, 0, sizeof(ctx));
|
|
|
|
ctx.host = host;
|
|
|
|
ctx.quiet = quiet;
|
|
|
|
if ((ctx.skip_keys = calloc(nkeys, sizeof(*ctx.skip_keys))) == NULL)
|
|
|
|
return SSH_ERR_ALLOC_FAIL;
|
|
|
|
ctx.keys = keys;
|
|
|
|
ctx.nkeys = nkeys;
|
|
|
|
ctx.modified = 0;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Prepare temporary file for in-place deletion.
|
|
|
|
*/
|
|
|
|
if ((r = asprintf(&temp, "%s.XXXXXXXXXXX", filename)) < 0 ||
|
|
|
|
(r = asprintf(&back, "%s.old", filename)) < 0) {
|
|
|
|
r = SSH_ERR_ALLOC_FAIL;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((fd = mkstemp(temp)) == -1) {
|
|
|
|
oerrno = errno;
|
|
|
|
error("%s: mkstemp: %s", __func__, strerror(oerrno));
|
|
|
|
r = SSH_ERR_SYSTEM_ERROR;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
if ((ctx.out = fdopen(fd, "w")) == NULL) {
|
|
|
|
oerrno = errno;
|
|
|
|
close(fd);
|
|
|
|
error("%s: fdopen: %s", __func__, strerror(oerrno));
|
|
|
|
r = SSH_ERR_SYSTEM_ERROR;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Remove all entries for the specified host from the file */
|
|
|
|
if ((r = hostkeys_foreach(filename, host_delete, &ctx, host, ip,
|
|
|
|
HKF_WANT_PARSE_KEY)) != 0) {
|
|
|
|
error("%s: hostkeys_foreach failed: %s", __func__, ssh_err(r));
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Add the requested keys */
|
|
|
|
for (i = 0; i < nkeys; i++) {
|
|
|
|
if (ctx.skip_keys[i])
|
|
|
|
continue;
|
|
|
|
if ((fp = sshkey_fingerprint(keys[i], hash_alg,
|
|
|
|
SSH_FP_DEFAULT)) == NULL) {
|
|
|
|
r = SSH_ERR_ALLOC_FAIL;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
do_log2(loglevel, "%s%sAdding new key for %s to %s: %s %s",
|
|
|
|
quiet ? __func__ : "", quiet ? ": " : "", host, filename,
|
|
|
|
sshkey_ssh_name(keys[i]), fp);
|
|
|
|
free(fp);
|
|
|
|
if (!write_host_entry(ctx.out, host, ip, keys[i], store_hash)) {
|
|
|
|
r = SSH_ERR_INTERNAL_ERROR;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
ctx.modified = 1;
|
|
|
|
}
|
|
|
|
fclose(ctx.out);
|
|
|
|
ctx.out = NULL;
|
|
|
|
|
|
|
|
if (ctx.modified) {
|
|
|
|
/* Backup the original file and replace it with the temporary */
|
|
|
|
if (unlink(back) == -1 && errno != ENOENT) {
|
|
|
|
oerrno = errno;
|
|
|
|
error("%s: unlink %.100s: %s", __func__,
|
|
|
|
back, strerror(errno));
|
|
|
|
r = SSH_ERR_SYSTEM_ERROR;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
if (link(filename, back) == -1) {
|
|
|
|
oerrno = errno;
|
|
|
|
error("%s: link %.100s to %.100s: %s", __func__,
|
|
|
|
filename, back, strerror(errno));
|
|
|
|
r = SSH_ERR_SYSTEM_ERROR;
|
|
|
|
goto fail;
|
|
|
|
}
|
|
|
|
if (rename(temp, filename) == -1) {
|
|
|
|
oerrno = errno;
|
|
|
|
error("%s: rename \"%s\" to \"%s\": %s", __func__,
|
|
|
|
temp, filename, strerror(errno));
|
|
|
|
r = SSH_ERR_SYSTEM_ERROR;
|
|
|
|
goto fail;
|
|
|
|
}
|
2000-03-26 07:07:24 +00:00
|
|
|
} else {
|
2015-07-02 13:15:34 +00:00
|
|
|
/* No changes made; just delete the temporary file */
|
|
|
|
if (unlink(temp) != 0)
|
|
|
|
error("%s: unlink \"%s\": %s", __func__,
|
|
|
|
temp, strerror(errno));
|
|
|
|
}
|
|
|
|
|
|
|
|
/* success */
|
|
|
|
r = 0;
|
|
|
|
fail:
|
|
|
|
if (temp != NULL && r != 0)
|
|
|
|
unlink(temp);
|
|
|
|
free(temp);
|
|
|
|
free(back);
|
|
|
|
if (ctx.out != NULL)
|
|
|
|
fclose(ctx.out);
|
|
|
|
free(ctx.skip_keys);
|
|
|
|
umask(omask);
|
|
|
|
if (r == SSH_ERR_SYSTEM_ERROR)
|
|
|
|
errno = oerrno;
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
match_maybe_hashed(const char *host, const char *names, int *was_hashed)
|
|
|
|
{
|
|
|
|
int hashed = *names == HASH_DELIM;
|
|
|
|
const char *hashed_host;
|
|
|
|
size_t nlen = strlen(names);
|
|
|
|
|
|
|
|
if (was_hashed != NULL)
|
|
|
|
*was_hashed = hashed;
|
|
|
|
if (hashed) {
|
|
|
|
if ((hashed_host = host_hash(host, names, nlen)) == NULL)
|
|
|
|
return -1;
|
|
|
|
return nlen == strlen(hashed_host) &&
|
|
|
|
strncmp(hashed_host, names, nlen) == 0;
|
|
|
|
}
|
2015-07-02 13:18:50 +00:00
|
|
|
return match_hostname(host, names) == 1;
|
2015-07-02 13:15:34 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
int
|
|
|
|
hostkeys_foreach(const char *path, hostkeys_foreach_fn *callback, void *ctx,
|
|
|
|
const char *host, const char *ip, u_int options)
|
|
|
|
{
|
|
|
|
FILE *f;
|
2018-08-28 10:47:58 +00:00
|
|
|
char *line = NULL, ktype[128];
|
2015-07-02 13:15:34 +00:00
|
|
|
u_long linenum = 0;
|
|
|
|
char *cp, *cp2;
|
|
|
|
u_int kbits;
|
|
|
|
int hashed;
|
|
|
|
int s, r = 0;
|
|
|
|
struct hostkey_foreach_line lineinfo;
|
2018-08-28 10:47:58 +00:00
|
|
|
size_t linesize = 0, l;
|
2015-07-02 13:15:34 +00:00
|
|
|
|
|
|
|
memset(&lineinfo, 0, sizeof(lineinfo));
|
|
|
|
if (host == NULL && (options & HKF_WANT_MATCH) != 0)
|
|
|
|
return SSH_ERR_INVALID_ARGUMENT;
|
|
|
|
if ((f = fopen(path, "r")) == NULL)
|
|
|
|
return SSH_ERR_SYSTEM_ERROR;
|
|
|
|
|
|
|
|
debug3("%s: reading file \"%s\"", __func__, path);
|
2018-08-28 10:47:58 +00:00
|
|
|
while (getline(&line, &linesize, f) != -1) {
|
|
|
|
linenum++;
|
2015-07-02 13:15:34 +00:00
|
|
|
line[strcspn(line, "\n")] = '\0';
|
|
|
|
|
2018-08-28 10:47:58 +00:00
|
|
|
free(lineinfo.line);
|
2015-07-02 13:15:34 +00:00
|
|
|
sshkey_free(lineinfo.key);
|
|
|
|
memset(&lineinfo, 0, sizeof(lineinfo));
|
|
|
|
lineinfo.path = path;
|
|
|
|
lineinfo.linenum = linenum;
|
2018-08-28 10:47:58 +00:00
|
|
|
lineinfo.line = xstrdup(line);
|
2015-07-02 13:15:34 +00:00
|
|
|
lineinfo.marker = MRK_NONE;
|
|
|
|
lineinfo.status = HKF_STATUS_OK;
|
|
|
|
lineinfo.keytype = KEY_UNSPEC;
|
|
|
|
|
|
|
|
/* Skip any leading whitespace, comments and empty lines. */
|
|
|
|
for (cp = line; *cp == ' ' || *cp == '\t'; cp++)
|
|
|
|
;
|
|
|
|
if (!*cp || *cp == '#' || *cp == '\n') {
|
|
|
|
if ((options & HKF_WANT_MATCH) == 0) {
|
|
|
|
lineinfo.status = HKF_STATUS_COMMENT;
|
|
|
|
if ((r = callback(&lineinfo, ctx)) != 0)
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((lineinfo.marker = check_markers(&cp)) == MRK_ERROR) {
|
|
|
|
verbose("%s: invalid marker at %s:%lu",
|
|
|
|
__func__, path, linenum);
|
|
|
|
if ((options & HKF_WANT_MATCH) == 0)
|
|
|
|
goto bad;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Find the end of the host name portion. */
|
|
|
|
for (cp2 = cp; *cp2 && *cp2 != ' ' && *cp2 != '\t'; cp2++)
|
|
|
|
;
|
|
|
|
lineinfo.hosts = cp;
|
|
|
|
*cp2++ = '\0';
|
|
|
|
|
|
|
|
/* Check if the host name matches. */
|
|
|
|
if (host != NULL) {
|
|
|
|
if ((s = match_maybe_hashed(host, lineinfo.hosts,
|
|
|
|
&hashed)) == -1) {
|
|
|
|
debug2("%s: %s:%ld: bad host hash \"%.32s\"",
|
|
|
|
__func__, path, linenum, lineinfo.hosts);
|
|
|
|
goto bad;
|
|
|
|
}
|
|
|
|
if (s == 1) {
|
|
|
|
lineinfo.status = HKF_STATUS_MATCHED;
|
|
|
|
lineinfo.match |= HKF_MATCH_HOST |
|
|
|
|
(hashed ? HKF_MATCH_HOST_HASHED : 0);
|
|
|
|
}
|
|
|
|
/* Try matching IP address if supplied */
|
|
|
|
if (ip != NULL) {
|
|
|
|
if ((s = match_maybe_hashed(ip, lineinfo.hosts,
|
|
|
|
&hashed)) == -1) {
|
|
|
|
debug2("%s: %s:%ld: bad ip hash "
|
|
|
|
"\"%.32s\"", __func__, path,
|
|
|
|
linenum, lineinfo.hosts);
|
|
|
|
goto bad;
|
|
|
|
}
|
|
|
|
if (s == 1) {
|
|
|
|
lineinfo.status = HKF_STATUS_MATCHED;
|
|
|
|
lineinfo.match |= HKF_MATCH_IP |
|
|
|
|
(hashed ? HKF_MATCH_IP_HASHED : 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
|
|
* Skip this line if host matching requested and
|
|
|
|
* neither host nor address matched.
|
|
|
|
*/
|
|
|
|
if ((options & HKF_WANT_MATCH) != 0 &&
|
|
|
|
lineinfo.status != HKF_STATUS_MATCHED)
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Got a match. Skip host name and any following whitespace */
|
|
|
|
for (; *cp2 == ' ' || *cp2 == '\t'; cp2++)
|
|
|
|
;
|
|
|
|
if (*cp2 == '\0' || *cp2 == '#') {
|
|
|
|
debug2("%s:%ld: truncated before key type",
|
|
|
|
path, linenum);
|
|
|
|
goto bad;
|
|
|
|
}
|
|
|
|
lineinfo.rawkey = cp = cp2;
|
|
|
|
|
|
|
|
if ((options & HKF_WANT_PARSE_KEY) != 0) {
|
|
|
|
/*
|
|
|
|
* Extract the key from the line. This will skip
|
|
|
|
* any leading whitespace. Ignore badly formatted
|
|
|
|
* lines.
|
|
|
|
*/
|
|
|
|
if ((lineinfo.key = sshkey_new(KEY_UNSPEC)) == NULL) {
|
|
|
|
error("%s: sshkey_new failed", __func__);
|
|
|
|
r = SSH_ERR_ALLOC_FAIL;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (!hostfile_read_key(&cp, &kbits, lineinfo.key)) {
|
|
|
|
goto bad;
|
|
|
|
}
|
|
|
|
lineinfo.keytype = lineinfo.key->type;
|
|
|
|
lineinfo.comment = cp;
|
|
|
|
} else {
|
|
|
|
/* Extract and parse key type */
|
|
|
|
l = strcspn(lineinfo.rawkey, " \t");
|
|
|
|
if (l <= 1 || l >= sizeof(ktype) ||
|
|
|
|
lineinfo.rawkey[l] == '\0')
|
|
|
|
goto bad;
|
|
|
|
memcpy(ktype, lineinfo.rawkey, l);
|
|
|
|
ktype[l] = '\0';
|
|
|
|
lineinfo.keytype = sshkey_type_from_name(ktype);
|
2015-07-02 13:18:50 +00:00
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
/*
|
2018-05-06 12:24:45 +00:00
|
|
|
* Assume legacy RSA1 if the first component is a short
|
2015-07-02 13:15:34 +00:00
|
|
|
* decimal number.
|
|
|
|
*/
|
|
|
|
if (lineinfo.keytype == KEY_UNSPEC && l < 8 &&
|
|
|
|
strspn(ktype, "0123456789") == l)
|
2018-05-06 12:24:45 +00:00
|
|
|
goto bad;
|
2015-07-02 13:18:50 +00:00
|
|
|
|
2015-07-02 13:15:34 +00:00
|
|
|
/*
|
|
|
|
* Check that something other than whitespace follows
|
|
|
|
* the key type. This won't catch all corruption, but
|
|
|
|
* it does catch trivial truncation.
|
|
|
|
*/
|
|
|
|
cp2 += l; /* Skip past key type */
|
|
|
|
for (; *cp2 == ' ' || *cp2 == '\t'; cp2++)
|
|
|
|
;
|
|
|
|
if (*cp2 == '\0' || *cp2 == '#') {
|
|
|
|
debug2("%s:%ld: truncated after key type",
|
|
|
|
path, linenum);
|
|
|
|
lineinfo.keytype = KEY_UNSPEC;
|
|
|
|
}
|
|
|
|
if (lineinfo.keytype == KEY_UNSPEC) {
|
|
|
|
bad:
|
|
|
|
sshkey_free(lineinfo.key);
|
|
|
|
lineinfo.key = NULL;
|
|
|
|
lineinfo.status = HKF_STATUS_INVALID;
|
|
|
|
if ((r = callback(&lineinfo, ctx)) != 0)
|
|
|
|
break;
|
|
|
|
continue;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if ((r = callback(&lineinfo, ctx)) != 0)
|
|
|
|
break;
|
2000-02-24 14:29:47 +00:00
|
|
|
}
|
2015-07-02 13:15:34 +00:00
|
|
|
sshkey_free(lineinfo.key);
|
2018-08-28 10:47:58 +00:00
|
|
|
free(lineinfo.line);
|
|
|
|
free(line);
|
2000-02-24 14:29:47 +00:00
|
|
|
fclose(f);
|
2015-07-02 13:15:34 +00:00
|
|
|
return r;
|
2000-02-24 14:29:47 +00:00
|
|
|
}
|