diff -rup openssh-7.5p1/cipher.c openssh-7.5p1-new/cipher.c
--- openssh-7.5p1/cipher.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/cipher.c 2017-11-14 16:04:07.735036305 -0800
@@ -136,6 +136,26 @@ static const struct sshcipher ciphers[]
{ NULL, SSH_CIPHER_INVALID, 0, 0, 0, 0, 0, 0, NULL }
};
+static const struct sshcipher fips_ciphers[] = {
+ { "none", SSH_CIPHER_NONE, 8, 0, 0, 0, 0, 0, EVP_enc_null },
+ { "3des-cbc", SSH_CIPHER_SSH2, 8, 24, 0, 0, 0, 1, EVP_des_ede3_cbc },
+ { "aes128-cbc", SSH_CIPHER_SSH2, 16, 16, 0, 0, 0, 1, EVP_aes_128_cbc },
+ { "aes192-cbc", SSH_CIPHER_SSH2, 16, 24, 0, 0, 0, 1, EVP_aes_192_cbc },
+ { "aes256-cbc", SSH_CIPHER_SSH2, 16, 32, 0, 0, 0, 1, EVP_aes_256_cbc },
+ { "rijndael-cbc@lysator.liu.se",
+ SSH_CIPHER_SSH2, 16, 32, 0, 0, 0, 1, EVP_aes_256_cbc },
+ { "aes128-ctr", SSH_CIPHER_SSH2, 16, 16, 0, 0, 0, 0, EVP_aes_128_ctr },
+ { "aes192-ctr", SSH_CIPHER_SSH2, 16, 24, 0, 0, 0, 0, EVP_aes_192_ctr },
+ { "aes256-ctr", SSH_CIPHER_SSH2, 16, 32, 0, 0, 0, 0, EVP_aes_256_ctr },
+# ifdef OPENSSL_HAVE_EVPGCM
+ { "aes128-gcm@openssh.com",
+ SSH_CIPHER_SSH2, 16, 16, 12, 16, 0, 0, EVP_aes_128_gcm },
+ { "aes256-gcm@openssh.com",
+ SSH_CIPHER_SSH2, 16, 32, 12, 16, 0, 0, EVP_aes_256_gcm },
+# endif /* OPENSSL_HAVE_EVPGCM */
+ { NULL, SSH_CIPHER_INVALID, 0, 0, 0, 0, 0, 0, NULL }
+};
+
/*--*/
/* Returns a comma-separated list of supported ciphers. */
@@ -146,7 +166,7 @@ cipher_alg_list(char sep, int auth_only)
size_t nlen, rlen = 0;
const struct sshcipher *c;
- for (c = ciphers; c->name != NULL; c++) {
+ for (c = FIPS_mode() ? fips_ciphers : ciphers; c->name != NULL; c++) {
if (c->number != SSH_CIPHER_SSH2)
continue;
if (auth_only && c->auth_len == 0)
@@ -242,7 +262,7 @@ const struct sshcipher *
cipher_by_name(const char *name)
{
const struct sshcipher *c;
- for (c = ciphers; c->name != NULL; c++)
+ for (c = FIPS_mode() ? fips_ciphers : ciphers; c->name != NULL; c++)
if (strcmp(c->name, name) == 0)
return c;
return NULL;
@@ -252,7 +272,7 @@ const struct sshcipher *
cipher_by_number(int id)
{
const struct sshcipher *c;
- for (c = ciphers; c->name != NULL; c++)
+ for (c = FIPS_mode() ? fips_ciphers : ciphers; c->name != NULL; c++)
if (c->number == id)
return c;
return NULL;
@@ -293,7 +313,7 @@ cipher_number(const char *name)
const struct sshcipher *c;
if (name == NULL)
return -1;
- for (c = ciphers; c->name != NULL; c++)
+ for (c = FIPS_mode() ? fips_ciphers : ciphers; c->name != NULL; c++)
if (strcasecmp(c->name, name) == 0)
return c->number;
return -1;
diff -rup openssh-7.5p1/cipher-ctr.c openssh-7.5p1-new/cipher-ctr.c
--- openssh-7.5p1/cipher-ctr.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/cipher-ctr.c 2017-11-14 16:03:27.498694013 -0800
@@ -138,7 +138,8 @@ evp_aes_128_ctr(void)
aes_ctr.do_cipher = ssh_aes_ctr;
#ifndef SSH_OLD_EVP
aes_ctr.flags = EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH |
- EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CUSTOM_IV;
+ EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CUSTOM_IV |
+ EVP_CIPH_FLAG_FIPS;
#endif
return (&aes_ctr);
}
diff -rup openssh-7.5p1/dh.h openssh-7.5p1-new/dh.h
--- openssh-7.5p1/dh.h 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/dh.h 2017-11-14 16:03:27.498694013 -0800
@@ -51,6 +51,7 @@ u_int dh_estimate(int);
* Miniumum increased in light of DH precomputation attacks.
*/
#define DH_GRP_MIN 2048
+#define DH_GRP_MIN_FIPS 2048
#define DH_GRP_MAX 8192
/*
diff -rup openssh-7.5p1/entropy.c openssh-7.5p1-new/entropy.c
--- openssh-7.5p1/entropy.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/entropy.c 2017-11-14 16:03:27.498694013 -0800
@@ -217,6 +217,9 @@ seed_rng(void)
fatal("OpenSSL version mismatch. Built against %lx, you "
"have %lx", (u_long)OPENSSL_VERSION_NUMBER, SSLeay());
+ /* clean the PRNG status when exiting the program */
+ atexit(RAND_cleanup);
+
#ifndef OPENSSL_PRNG_ONLY
if (RAND_status() == 1) {
debug3("RNG is ready, skipping seeding");
diff -rup openssh-7.5p1/kex.c openssh-7.5p1-new/kex.c
--- openssh-7.5p1/kex.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/kex.c 2017-11-14 16:10:16.816150390 -0800
@@ -114,6 +114,27 @@ static const struct kexalg kexalgs[] = {
{ NULL, -1, -1, -1},
};
+static const struct kexalg kexalgs_fips[] = {
+ { KEX_DH14_SHA1, KEX_DH_GRP14_SHA1, 0, SSH_DIGEST_SHA1 },
+ { KEX_DH14_SHA256, KEX_DH_GRP14_SHA256, 0, SSH_DIGEST_SHA256 },
+ { KEX_DH16_SHA512, KEX_DH_GRP16_SHA512, 0, SSH_DIGEST_SHA512 },
+ { KEX_DH18_SHA512, KEX_DH_GRP18_SHA512, 0, SSH_DIGEST_SHA512 },
+#ifdef HAVE_EVP_SHA256
+ { KEX_DHGEX_SHA256, KEX_DH_GEX_SHA256, 0, SSH_DIGEST_SHA256 },
+#endif
+#ifdef OPENSSL_HAS_ECC
+ { KEX_ECDH_SHA2_NISTP256, KEX_ECDH_SHA2,
+ NID_X9_62_prime256v1, SSH_DIGEST_SHA256 },
+ { KEX_ECDH_SHA2_NISTP384, KEX_ECDH_SHA2, NID_secp384r1,
+ SSH_DIGEST_SHA384 },
+# ifdef OPENSSL_HAS_NISTP521
+ { KEX_ECDH_SHA2_NISTP521, KEX_ECDH_SHA2, NID_secp521r1,
+ SSH_DIGEST_SHA512 },
+# endif
+#endif
+ { NULL, -1, -1, -1},
+};
+
char *
kex_alg_list(char sep)
{
@@ -121,7 +142,7 @@ kex_alg_list(char sep)
size_t nlen, rlen = 0;
const struct kexalg *k;
- for (k = kexalgs; k->name != NULL; k++) {
+ for (k = (FIPS_mode() ? kexalgs_fips : kexalgs); k->name != NULL; k++) {
if (ret != NULL)
ret[rlen++] = sep;
nlen = strlen(k->name);
@@ -141,7 +162,7 @@ kex_alg_by_name(const char *name)
{
const struct kexalg *k;
- for (k = kexalgs; k->name != NULL; k++) {
+ for (k = (FIPS_mode() ? kexalgs_fips : kexalgs); k->name != NULL; k++) {
if (strcmp(k->name, name) == 0)
return k;
}
@@ -161,7 +182,10 @@ kex_names_valid(const char *names)
for ((p = strsep(&cp, ",")); p && *p != '\0';
(p = strsep(&cp, ","))) {
if (kex_alg_by_name(p) == NULL) {
- error("Unsupported KEX algorithm \"%.100s\"", p);
+ if (FIPS_mode())
+ error("\"%.100s\" is not allowed in FIPS mode", p);
+ else
+ error("Unsupported KEX algorithm \"%.100s\"", p);
free(s);
return 0;
}
diff -rup openssh-7.5p1/kexgexc.c openssh-7.5p1-new/kexgexc.c
--- openssh-7.5p1/kexgexc.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/kexgexc.c 2017-11-14 16:03:27.498694013 -0800
@@ -63,7 +63,7 @@ kexgex_client(struct ssh *ssh)
nbits = dh_estimate(kex->dh_need * 8);
- kex->min = DH_GRP_MIN;
+ kex->min = FIPS_mode() ? DH_GRP_MIN_FIPS : DH_GRP_MIN;
kex->max = DH_GRP_MAX;
kex->nbits = nbits;
if (datafellows & SSH_BUG_DHGEX_LARGE)
diff -rup openssh-7.5p1/kexgexs.c openssh-7.5p1-new/kexgexs.c
--- openssh-7.5p1/kexgexs.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/kexgexs.c 2017-11-14 16:03:27.498694013 -0800
@@ -83,9 +83,9 @@ input_kex_dh_gex_request(int type, u_int
kex->nbits = nbits;
kex->min = min;
kex->max = max;
- min = MAXIMUM(DH_GRP_MIN, min);
+ min = MAXIMUM(FIPS_mode() ? DH_GRP_MIN_FIPS : DH_GRP_MIN, min);
max = MINIMUM(DH_GRP_MAX, max);
- nbits = MAXIMUM(DH_GRP_MIN, nbits);
+ nbits = MAXIMUM(FIPS_mode() ? DH_GRP_MIN_FIPS : DH_GRP_MIN, nbits);
nbits = MINIMUM(DH_GRP_MAX, nbits);
if (kex->max < kex->min || kex->nbits < kex->min ||
diff -rup openssh-7.5p1/mac.c openssh-7.5p1-new/mac.c
--- openssh-7.5p1/mac.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/mac.c 2017-11-14 16:03:27.498694013 -0800
@@ -54,7 +54,7 @@ struct macalg {
int etm; /* Encrypt-then-MAC */
};
-static const struct macalg macs[] = {
+static const struct macalg all_macs[] = {
/* Encrypt-and-MAC (encrypt-and-authenticate) variants */
{ "hmac-sha1", SSH_DIGEST, SSH_DIGEST_SHA1, 0, 0, 0, 0 },
{ "hmac-sha1-96", SSH_DIGEST, SSH_DIGEST_SHA1, 96, 0, 0, 0 },
@@ -89,6 +89,24 @@ static const struct macalg macs[] = {
{ NULL, 0, 0, 0, 0, 0, 0 }
};
+static const struct macalg fips_macs[] = {
+ /* Encrypt-and-MAC (encrypt-and-authenticate) variants */
+ { "hmac-sha1", SSH_DIGEST, SSH_DIGEST_SHA1, 0, 0, 0, 0 },
+#ifdef HAVE_EVP_SHA256
+ { "hmac-sha2-256", SSH_DIGEST, SSH_DIGEST_SHA256, 0, 0, 0, 0 },
+ { "hmac-sha2-512", SSH_DIGEST, SSH_DIGEST_SHA512, 0, 0, 0, 0 },
+#endif
+
+ /* Encrypt-then-MAC variants */
+ { "hmac-sha1-etm@openssh.com", SSH_DIGEST, SSH_DIGEST_SHA1, 0, 0, 0, 1 },
+#ifdef HAVE_EVP_SHA256
+ { "hmac-sha2-256-etm@openssh.com", SSH_DIGEST, SSH_DIGEST_SHA256, 0, 0, 0, 1 },
+ { "hmac-sha2-512-etm@openssh.com", SSH_DIGEST, SSH_DIGEST_SHA512, 0, 0, 0, 1 },
+#endif
+
+ { NULL, 0, 0, 0, 0, 0, 0 }
+};
+
/* Returns a list of supported MACs separated by the specified char. */
char *
mac_alg_list(char sep)
@@ -97,7 +115,7 @@ mac_alg_list(char sep)
size_t nlen, rlen = 0;
const struct macalg *m;
- for (m = macs; m->name != NULL; m++) {
+ for (m = FIPS_mode() ? fips_macs : all_macs; m->name != NULL; m++) {
if (ret != NULL)
ret[rlen++] = sep;
nlen = strlen(m->name);
@@ -136,7 +154,7 @@ mac_setup(struct sshmac *mac, char *name
{
const struct macalg *m;
- for (m = macs; m->name != NULL; m++) {
+ for (m = FIPS_mode() ? fips_macs : all_macs; m->name != NULL; m++) {
if (strcmp(name, m->name) != 0)
continue;
if (mac != NULL)
diff -rup openssh-7.5p1/myproposal.h openssh-7.5p1-new/myproposal.h
--- openssh-7.5p1/myproposal.h 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/myproposal.h 2017-11-14 16:12:38.278996802 -0800
@@ -138,6 +138,29 @@
#define KEX_CLIENT_MAC KEX_SERVER_MAC
+#define KEX_DEFAULT_KEX_FIPS \
+ KEX_ECDH_METHODS \
+ KEX_SHA2_METHODS \
+ KEX_SHA2_GROUP14 \
+ "diffie-hellman-group14-sha1"
+#define KEX_FIPS_ENCRYPT \
+ "aes128-ctr,aes192-ctr,aes256-ctr," \
+ "aes128-cbc,3des-cbc," \
+ "aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se" \
+ AESGCM_CIPHER_MODES
+#ifdef HAVE_EVP_SHA256
+#define KEX_FIPS_MAC \
+ "hmac-sha1," \
+ "hmac-sha2-256," \
+ "hmac-sha2-512," \
+ "hmac-sha1-etm@openssh.com," \
+ "hmac-sha2-256-etm@openssh.com," \
+ "hmac-sha2-512-etm@openssh.com"
+#else
+#define KEX_FIPS_MAC \
+ "hmac-sha1"
+#endif
+
#else /* WITH_OPENSSL */
#define KEX_SERVER_KEX \
diff -rup openssh-7.5p1/openbsd-compat/openssl-compat.h openssh-7.5p1-new/openbsd-compat/openssl-compat.h
--- openssh-7.5p1/openbsd-compat/openssl-compat.h 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/openbsd-compat/openssl-compat.h 2017-11-14 16:03:27.498694013 -0800
@@ -24,6 +24,7 @@
#include <openssl/evp.h>
#include <openssl/rsa.h>
#include <openssl/dsa.h>
+#include <openssl/crypto.h>
int ssh_compatible_openssl(long, long);
diff -rup openssh-7.5p1/readconf.c openssh-7.5p1-new/readconf.c
--- openssh-7.5p1/readconf.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/readconf.c 2017-11-14 16:03:27.498694013 -0800
@@ -2066,9 +2066,12 @@ fill_default_options(Options * options)
options->fingerprint_hash = SSH_FP_HASH_DEFAULT;
if (options->update_hostkeys == -1)
options->update_hostkeys = 0;
- if (kex_assemble_names(KEX_CLIENT_ENCRYPT, &options->ciphers) != 0 ||
- kex_assemble_names(KEX_CLIENT_MAC, &options->macs) != 0 ||
- kex_assemble_names(KEX_CLIENT_KEX, &options->kex_algorithms) != 0 ||
+ if (kex_assemble_names((FIPS_mode() ? KEX_FIPS_ENCRYPT
+ : KEX_CLIENT_ENCRYPT), &options->ciphers) != 0 ||
+ kex_assemble_names((FIPS_mode() ? KEX_FIPS_MAC
+ : KEX_CLIENT_MAC), &options->macs) != 0 ||
+ kex_assemble_names((FIPS_mode() ? KEX_DEFAULT_KEX_FIPS
+ : KEX_CLIENT_KEX), &options->kex_algorithms) != 0 ||
kex_assemble_names(KEX_DEFAULT_PK_ALG,
&options->hostbased_key_types) != 0 ||
kex_assemble_names(KEX_DEFAULT_PK_ALG,
Only in openssh-7.5p1-new: readconf.c.orig
diff -rup openssh-7.5p1/sandbox-seccomp-filter.c openssh-7.5p1-new/sandbox-seccomp-filter.c
--- openssh-7.5p1/sandbox-seccomp-filter.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/sandbox-seccomp-filter.c 2017-11-14 16:03:27.498694013 -0800
@@ -134,6 +134,9 @@ static const struct sock_filter preauth_
#ifdef __NR_open
SC_DENY(__NR_open, EACCES),
#endif
+#ifdef __NR_socket
+ SC_DENY(__NR_socket, EACCES),
+#endif
#ifdef __NR_openat
SC_DENY(__NR_openat, EACCES),
#endif
Only in openssh-7.5p1-new: sandbox-seccomp-filter.c.orig
diff -rup openssh-7.5p1/servconf.c openssh-7.5p1-new/servconf.c
--- openssh-7.5p1/servconf.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/servconf.c 2017-11-14 16:03:27.502704413 -0800
@@ -176,9 +176,12 @@ option_clear_or_none(const char *o)
static void
assemble_algorithms(ServerOptions *o)
{
- if (kex_assemble_names(KEX_SERVER_ENCRYPT, &o->ciphers) != 0 ||
- kex_assemble_names(KEX_SERVER_MAC, &o->macs) != 0 ||
- kex_assemble_names(KEX_SERVER_KEX, &o->kex_algorithms) != 0 ||
+ if (kex_assemble_names((FIPS_mode() ? KEX_FIPS_ENCRYPT
+ : KEX_SERVER_ENCRYPT), &o->ciphers) != 0 ||
+ kex_assemble_names((FIPS_mode() ? KEX_FIPS_MAC
+ : KEX_SERVER_MAC), &o->macs) != 0 ||
+ kex_assemble_names((FIPS_mode() ? KEX_DEFAULT_KEX_FIPS
+ : KEX_SERVER_KEX), &o->kex_algorithms) != 0 ||
kex_assemble_names(KEX_DEFAULT_PK_ALG,
&o->hostkeyalgorithms) != 0 ||
kex_assemble_names(KEX_DEFAULT_PK_ALG,
@@ -2282,8 +2285,10 @@ dump_config(ServerOptions *o)
/* string arguments */
dump_cfg_string(sPidFile, o->pid_file);
dump_cfg_string(sXAuthLocation, o->xauth_location);
- dump_cfg_string(sCiphers, o->ciphers ? o->ciphers : KEX_SERVER_ENCRYPT);
- dump_cfg_string(sMacs, o->macs ? o->macs : KEX_SERVER_MAC);
+ dump_cfg_string(sCiphers, o->ciphers ? o->ciphers : FIPS_mode()
+ ? KEX_FIPS_ENCRYPT : KEX_SERVER_ENCRYPT);
+ dump_cfg_string(sMacs, o->macs ? o->macs : FIPS_mode()
+ ? KEX_FIPS_MAC : KEX_SERVER_MAC);
dump_cfg_string(sBanner, o->banner);
dump_cfg_string(sForceCommand, o->adm_forced_command);
dump_cfg_string(sChrootDirectory, o->chroot_directory);
@@ -2298,8 +2303,8 @@ dump_config(ServerOptions *o)
dump_cfg_string(sAuthorizedPrincipalsCommand, o->authorized_principals_command);
dump_cfg_string(sAuthorizedPrincipalsCommandUser, o->authorized_principals_command_user);
dump_cfg_string(sHostKeyAgent, o->host_key_agent);
- dump_cfg_string(sKexAlgorithms,
- o->kex_algorithms ? o->kex_algorithms : KEX_SERVER_KEX);
+ dump_cfg_string(sKexAlgorithms, o->kex_algorithms ? o->kex_algorithms :
+ FIPS_mode() ? KEX_DEFAULT_KEX_FIPS : KEX_SERVER_KEX);
dump_cfg_string(sHostbasedAcceptedKeyTypes, o->hostbased_key_types ?
o->hostbased_key_types : KEX_DEFAULT_PK_ALG);
dump_cfg_string(sHostKeyAlgorithms, o->hostkeyalgorithms ?
Only in openssh-7.5p1-new: servconf.c.orig
diff -rup openssh-7.5p1/ssh.c openssh-7.5p1-new/ssh.c
--- openssh-7.5p1/ssh.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/ssh.c 2017-11-14 16:03:27.502704413 -0800
@@ -609,6 +609,9 @@ main(int ac, char **av)
"ACD:E:F:GI:J:KL:MNO:PQ:R:S:TVw:W:XYy")) != -1) {
switch (opt) {
case '1':
+ if (FIPS_mode()) {
+ fatal("Protocol 1 not allowed in the FIPS mode.");
+ }
options.protocol = SSH_PROTO_1;
break;
case '2':
@@ -1174,6 +1177,10 @@ main(int ac, char **av)
}
seed_rng();
+
+ if (FIPS_mode()) {
+ logit("FIPS mode initialized");
+ }
if (options.user == NULL)
options.user = xstrdup(pw->pw_name);
@@ -1263,6 +1270,12 @@ main(int ac, char **av)
timeout_ms = options.connection_timeout * 1000;
+ if (FIPS_mode()) {
+ options.protocol &= SSH_PROTO_2;
+ if (options.protocol == 0)
+ fatal("Protocol 2 disabled by configuration but required in the FIPS mode.");
+ }
+
/* Open a connection to the remote host. */
if (ssh_connect(host, addrs, &hostaddr, options.port,
options.address_family, options.connection_attempts,
diff -rup openssh-7.5p1/sshd.c openssh-7.5p1-new/sshd.c
--- openssh-7.5p1/sshd.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/sshd.c 2017-11-14 16:03:27.502704413 -0800
@@ -1841,6 +1841,10 @@ main(int ac, char **av)
/* Reinitialize the log (because of the fork above). */
log_init(__progname, options.log_level, options.log_facility, log_stderr);
+ if (FIPS_mode()) {
+ logit("FIPS mode initialized");
+ }
+
/* Chdir to the root directory so that the current disk can be
unmounted if desired. */
if (chdir("/") == -1)
Only in openssh-7.5p1-new: sshd.c.orig
diff -rup openssh-7.5p1/sshkey.c openssh-7.5p1-new/sshkey.c
--- openssh-7.5p1/sshkey.c 2017-03-19 19:39:27.000000000 -0700
+++ openssh-7.5p1-new/sshkey.c 2017-11-14 16:03:27.502704413 -0800
@@ -56,6 +56,7 @@
#include "digest.h"
#define SSHKEY_INTERNAL
#include "sshkey.h"
+#include "log.h"
#include "match.h"
/* openssh private key file format */
@@ -1534,6 +1535,8 @@ rsa_generate_private_key(u_int bits, RSA
}
if (!BN_set_word(f4, RSA_F4) ||
!RSA_generate_key_ex(private, bits, f4, NULL)) {
+ if (FIPS_mode())
+ logit("%s: the key length might be unsupported by FIPS mode approved key generation method", __func__);
ret = SSH_ERR_LIBCRYPTO_ERROR;
goto out;
}
Only in openssh-7.5p1-new: sshkey.c.orig