mirror of
git://git.openwrt.org/openwrt/openwrt.git
synced 2024-12-12 18:05:15 +00:00
dcef8d6093
This version includes bug and security fixes, including medium-severity CVE-2019-1551, affecting RSA1024, RSA1536, DSA1024 & DH512 on x86_64. Signed-off-by: Eneas U de Queiroz <cotequeiroz@gmail.com>
350 lines
10 KiB
Diff
350 lines
10 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: Eneas U de Queiroz <cote2004-github@yahoo.com>
|
|
Date: Tue, 6 Nov 2018 10:57:03 -0200
|
|
Subject: e_devcrypto: make the /dev/crypto engine dynamic
|
|
|
|
Engine has been moved from crypto/engine/eng_devcrypto.c to
|
|
engines/e_devcrypto.c.
|
|
|
|
Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
|
|
|
|
diff --git a/crypto/engine/build.info b/crypto/engine/build.info
|
|
index e00802a3fd..47fe948966 100644
|
|
--- a/crypto/engine/build.info
|
|
+++ b/crypto/engine/build.info
|
|
@@ -6,6 +6,3 @@ SOURCE[../../libcrypto]=\
|
|
tb_cipher.c tb_digest.c tb_pkmeth.c tb_asnmth.c tb_eckey.c \
|
|
eng_openssl.c eng_cnf.c eng_dyn.c \
|
|
eng_rdrand.c
|
|
-IF[{- !$disabled{devcryptoeng} -}]
|
|
- SOURCE[../../libcrypto]=eng_devcrypto.c
|
|
-ENDIF
|
|
diff --git a/crypto/init.c b/crypto/init.c
|
|
index 1b0d523bea..ee3e2eb075 100644
|
|
--- a/crypto/init.c
|
|
+++ b/crypto/init.c
|
|
@@ -329,18 +329,6 @@ DEFINE_RUN_ONCE_STATIC(ossl_init_engine_openssl)
|
|
engine_load_openssl_int();
|
|
return 1;
|
|
}
|
|
-# ifndef OPENSSL_NO_DEVCRYPTOENG
|
|
-static CRYPTO_ONCE engine_devcrypto = CRYPTO_ONCE_STATIC_INIT;
|
|
-DEFINE_RUN_ONCE_STATIC(ossl_init_engine_devcrypto)
|
|
-{
|
|
-# ifdef OPENSSL_INIT_DEBUG
|
|
- fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_devcrypto: "
|
|
- "engine_load_devcrypto_int()\n");
|
|
-# endif
|
|
- engine_load_devcrypto_int();
|
|
- return 1;
|
|
-}
|
|
-# endif
|
|
|
|
# ifndef OPENSSL_NO_RDRAND
|
|
static CRYPTO_ONCE engine_rdrand = CRYPTO_ONCE_STATIC_INIT;
|
|
@@ -365,6 +353,18 @@ DEFINE_RUN_ONCE_STATIC(ossl_init_engine_dynamic)
|
|
return 1;
|
|
}
|
|
# ifndef OPENSSL_NO_STATIC_ENGINE
|
|
+# ifndef OPENSSL_NO_DEVCRYPTOENG
|
|
+static CRYPTO_ONCE engine_devcrypto = CRYPTO_ONCE_STATIC_INIT;
|
|
+DEFINE_RUN_ONCE_STATIC(ossl_init_engine_devcrypto)
|
|
+{
|
|
+# ifdef OPENSSL_INIT_DEBUG
|
|
+ fprintf(stderr, "OPENSSL_INIT: ossl_init_engine_devcrypto: "
|
|
+ "engine_load_devcrypto_int()\n");
|
|
+# endif
|
|
+ engine_load_devcrypto_int();
|
|
+ return 1;
|
|
+}
|
|
+# endif
|
|
# if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK)
|
|
static CRYPTO_ONCE engine_padlock = CRYPTO_ONCE_STATIC_INIT;
|
|
DEFINE_RUN_ONCE_STATIC(ossl_init_engine_padlock)
|
|
@@ -713,11 +713,6 @@ int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings)
|
|
if ((opts & OPENSSL_INIT_ENGINE_OPENSSL)
|
|
&& !RUN_ONCE(&engine_openssl, ossl_init_engine_openssl))
|
|
return 0;
|
|
-# if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_DEVCRYPTOENG)
|
|
- if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV)
|
|
- && !RUN_ONCE(&engine_devcrypto, ossl_init_engine_devcrypto))
|
|
- return 0;
|
|
-# endif
|
|
# ifndef OPENSSL_NO_RDRAND
|
|
if ((opts & OPENSSL_INIT_ENGINE_RDRAND)
|
|
&& !RUN_ONCE(&engine_rdrand, ossl_init_engine_rdrand))
|
|
@@ -727,6 +722,11 @@ int OPENSSL_init_crypto(uint64_t opts, const OPENSSL_INIT_SETTINGS *settings)
|
|
&& !RUN_ONCE(&engine_dynamic, ossl_init_engine_dynamic))
|
|
return 0;
|
|
# ifndef OPENSSL_NO_STATIC_ENGINE
|
|
+# ifndef OPENSSL_NO_DEVCRYPTOENG
|
|
+ if ((opts & OPENSSL_INIT_ENGINE_CRYPTODEV)
|
|
+ && !RUN_ONCE(&engine_devcrypto, ossl_init_engine_devcrypto))
|
|
+ return 0;
|
|
+# endif
|
|
# if !defined(OPENSSL_NO_HW) && !defined(OPENSSL_NO_HW_PADLOCK)
|
|
if ((opts & OPENSSL_INIT_ENGINE_PADLOCK)
|
|
&& !RUN_ONCE(&engine_padlock, ossl_init_engine_padlock))
|
|
diff --git a/engines/build.info b/engines/build.info
|
|
index 1db771971c..33a25d7004 100644
|
|
--- a/engines/build.info
|
|
+++ b/engines/build.info
|
|
@@ -11,6 +11,9 @@ IF[{- !$disabled{"engine"} -}]
|
|
IF[{- !$disabled{afalgeng} -}]
|
|
SOURCE[../libcrypto]=e_afalg.c
|
|
ENDIF
|
|
+ IF[{- !$disabled{"devcryptoeng"} -}]
|
|
+ SOURCE[../libcrypto]=e_devcrypto.c
|
|
+ ENDIF
|
|
ELSE
|
|
IF[{- !$disabled{hw} && !$disabled{'hw-padlock'} -}]
|
|
ENGINES=padlock
|
|
@@ -30,6 +33,12 @@ IF[{- !$disabled{"engine"} -}]
|
|
DEPEND[afalg]=../libcrypto
|
|
INCLUDE[afalg]= ../include
|
|
ENDIF
|
|
+ IF[{- !$disabled{"devcryptoeng"} -}]
|
|
+ ENGINES=devcrypto
|
|
+ SOURCE[devcrypto]=e_devcrypto.c
|
|
+ DEPEND[devcrypto]=../libcrypto
|
|
+ INCLUDE[devcrypto]=../include
|
|
+ ENDIF
|
|
|
|
ENGINES_NO_INST=ossltest dasync
|
|
SOURCE[dasync]=e_dasync.c
|
|
diff --git a/crypto/engine/eng_devcrypto.c b/engines/e_devcrypto.c
|
|
similarity index 95%
|
|
rename from crypto/engine/eng_devcrypto.c
|
|
rename to engines/e_devcrypto.c
|
|
index 0d420e50aa..3fcd81de7a 100644
|
|
--- a/crypto/engine/eng_devcrypto.c
|
|
+++ b/engines/e_devcrypto.c
|
|
@@ -7,7 +7,7 @@
|
|
* https://www.openssl.org/source/license.html
|
|
*/
|
|
|
|
-#include "e_os.h"
|
|
+#include "../e_os.h"
|
|
#include <string.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
@@ -31,18 +31,20 @@
|
|
# define CHECK_BSD_STYLE_MACROS
|
|
#endif
|
|
|
|
+#define engine_devcrypto_id "devcrypto"
|
|
+
|
|
/*
|
|
* ONE global file descriptor for all sessions. This allows operations
|
|
* such as digest session data copying (see digest_copy()), but is also
|
|
* saner... why re-open /dev/crypto for every session?
|
|
*/
|
|
-static int cfd;
|
|
+static int cfd = -1;
|
|
#define DEVCRYPTO_REQUIRE_ACCELERATED 0 /* require confirmation of acceleration */
|
|
#define DEVCRYPTO_USE_SOFTWARE 1 /* allow software drivers */
|
|
#define DEVCRYPTO_REJECT_SOFTWARE 2 /* only disallow confirmed software drivers */
|
|
|
|
-#define DEVCRYPTO_DEFAULT_USE_SOFDTRIVERS DEVCRYPTO_REJECT_SOFTWARE
|
|
-static int use_softdrivers = DEVCRYPTO_DEFAULT_USE_SOFDTRIVERS;
|
|
+#define DEVCRYPTO_DEFAULT_USE_SOFTDRIVERS DEVCRYPTO_REJECT_SOFTWARE
|
|
+static int use_softdrivers = DEVCRYPTO_DEFAULT_USE_SOFTDRIVERS;
|
|
|
|
/*
|
|
* cipher/digest status & acceleration definitions
|
|
@@ -341,6 +343,7 @@ static int cipher_ctrl(EVP_CIPHER_CTX *ctx, int type, int p1, void* p2)
|
|
struct cipher_ctx *to_cipher_ctx;
|
|
|
|
switch (type) {
|
|
+
|
|
case EVP_CTRL_COPY:
|
|
if (cipher_ctx == NULL)
|
|
return 1;
|
|
@@ -702,7 +705,6 @@ static int digest_init(EVP_MD_CTX *ctx)
|
|
SYSerr(SYS_F_IOCTL, errno);
|
|
return 0;
|
|
}
|
|
-
|
|
return 1;
|
|
}
|
|
|
|
@@ -1058,7 +1060,7 @@ static const ENGINE_CMD_DEFN devcrypto_cmds[] = {
|
|
OPENSSL_MSTR(DEVCRYPTO_USE_SOFTWARE) "=allow all drivers, "
|
|
OPENSSL_MSTR(DEVCRYPTO_REJECT_SOFTWARE)
|
|
"=use if acceleration can't be determined) [default="
|
|
- OPENSSL_MSTR(DEVCRYPTO_DEFAULT_USE_SOFDTRIVERS) "]",
|
|
+ OPENSSL_MSTR(DEVCRYPTO_DEFAULT_USE_SOFTDRIVERS) "]",
|
|
ENGINE_CMD_FLAG_NUMERIC},
|
|
#endif
|
|
|
|
@@ -1166,55 +1168,70 @@ static int devcrypto_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void))
|
|
*
|
|
*****/
|
|
|
|
-static int devcrypto_unload(ENGINE *e)
|
|
-{
|
|
- destroy_all_cipher_methods();
|
|
-#ifdef IMPLEMENT_DIGEST
|
|
- destroy_all_digest_methods();
|
|
-#endif
|
|
-
|
|
- close(cfd);
|
|
-
|
|
- return 1;
|
|
-}
|
|
/*
|
|
- * This engine is always built into libcrypto, so it doesn't offer any
|
|
- * ability to be dynamically loadable.
|
|
+ * Opens /dev/crypto
|
|
*/
|
|
-void engine_load_devcrypto_int()
|
|
+static int open_devcrypto(void)
|
|
{
|
|
- ENGINE *e = NULL;
|
|
+ if (cfd >= 0)
|
|
+ return 1;
|
|
|
|
if ((cfd = open("/dev/crypto", O_RDWR, 0)) < 0) {
|
|
#ifndef ENGINE_DEVCRYPTO_DEBUG
|
|
if (errno != ENOENT)
|
|
#endif
|
|
fprintf(stderr, "Could not open /dev/crypto: %s\n", strerror(errno));
|
|
- return;
|
|
+ return 0;
|
|
}
|
|
|
|
- if ((e = ENGINE_new()) == NULL
|
|
- || !ENGINE_set_destroy_function(e, devcrypto_unload)) {
|
|
- ENGINE_free(e);
|
|
- /*
|
|
- * We know that devcrypto_unload() won't be called when one of the
|
|
- * above two calls have failed, so we close cfd explicitly here to
|
|
- * avoid leaking resources.
|
|
- */
|
|
- close(cfd);
|
|
- return;
|
|
+ return 1;
|
|
+}
|
|
+
|
|
+static int close_devcrypto(void)
|
|
+{
|
|
+ int ret;
|
|
+
|
|
+ if (cfd < 0)
|
|
+ return 1;
|
|
+ ret = close(cfd);
|
|
+ cfd = -1;
|
|
+ if (ret != 0) {
|
|
+ fprintf(stderr, "Error closing /dev/crypto: %s\n", strerror(errno));
|
|
+ return 0;
|
|
}
|
|
+ return 1;
|
|
+}
|
|
|
|
- prepare_cipher_methods();
|
|
+static int devcrypto_unload(ENGINE *e)
|
|
+{
|
|
+ destroy_all_cipher_methods();
|
|
#ifdef IMPLEMENT_DIGEST
|
|
- prepare_digest_methods();
|
|
+ destroy_all_digest_methods();
|
|
#endif
|
|
|
|
- if (!ENGINE_set_id(e, "devcrypto")
|
|
+ close_devcrypto();
|
|
+
|
|
+ return 1;
|
|
+}
|
|
+
|
|
+static int bind_devcrypto(ENGINE *e) {
|
|
+
|
|
+ if (!ENGINE_set_id(e, engine_devcrypto_id)
|
|
|| !ENGINE_set_name(e, "/dev/crypto engine")
|
|
+ || !ENGINE_set_destroy_function(e, devcrypto_unload)
|
|
|| !ENGINE_set_cmd_defns(e, devcrypto_cmds)
|
|
- || !ENGINE_set_ctrl_function(e, devcrypto_ctrl)
|
|
+ || !ENGINE_set_ctrl_function(e, devcrypto_ctrl))
|
|
+ return 0;
|
|
|
|
+ prepare_cipher_methods();
|
|
+#ifdef IMPLEMENT_DIGEST
|
|
+ prepare_digest_methods();
|
|
+#endif
|
|
+
|
|
+ return (ENGINE_set_ciphers(e, devcrypto_ciphers)
|
|
+#ifdef IMPLEMENT_DIGEST
|
|
+ && ENGINE_set_digests(e, devcrypto_digests)
|
|
+#endif
|
|
/*
|
|
* Asymmetric ciphers aren't well supported with /dev/crypto. Among the BSD
|
|
* implementations, it seems to only exist in FreeBSD, and regarding the
|
|
@@ -1237,23 +1254,36 @@ void engine_load_devcrypto_int()
|
|
*/
|
|
#if 0
|
|
# ifndef OPENSSL_NO_RSA
|
|
- || !ENGINE_set_RSA(e, devcrypto_rsa)
|
|
+ && ENGINE_set_RSA(e, devcrypto_rsa)
|
|
# endif
|
|
# ifndef OPENSSL_NO_DSA
|
|
- || !ENGINE_set_DSA(e, devcrypto_dsa)
|
|
+ && ENGINE_set_DSA(e, devcrypto_dsa)
|
|
# endif
|
|
# ifndef OPENSSL_NO_DH
|
|
- || !ENGINE_set_DH(e, devcrypto_dh)
|
|
+ && ENGINE_set_DH(e, devcrypto_dh)
|
|
# endif
|
|
# ifndef OPENSSL_NO_EC
|
|
- || !ENGINE_set_EC(e, devcrypto_ec)
|
|
+ && ENGINE_set_EC(e, devcrypto_ec)
|
|
# endif
|
|
#endif
|
|
- || !ENGINE_set_ciphers(e, devcrypto_ciphers)
|
|
-#ifdef IMPLEMENT_DIGEST
|
|
- || !ENGINE_set_digests(e, devcrypto_digests)
|
|
-#endif
|
|
- ) {
|
|
+ );
|
|
+}
|
|
+
|
|
+#ifdef OPENSSL_NO_DYNAMIC_ENGINE
|
|
+/*
|
|
+ * In case this engine is built into libcrypto, then it doesn't offer any
|
|
+ * ability to be dynamically loadable.
|
|
+ */
|
|
+void engine_load_devcrypto_int(void)
|
|
+{
|
|
+ ENGINE *e = NULL;
|
|
+
|
|
+ if (!open_devcrypto())
|
|
+ return;
|
|
+
|
|
+ if ((e = ENGINE_new()) == NULL
|
|
+ || !bind_devcrypto(e)) {
|
|
+ close_devcrypto();
|
|
ENGINE_free(e);
|
|
return;
|
|
}
|
|
@@ -1262,3 +1292,22 @@ void engine_load_devcrypto_int()
|
|
ENGINE_free(e); /* Loose our local reference */
|
|
ERR_clear_error();
|
|
}
|
|
+
|
|
+#else
|
|
+
|
|
+static int bind_helper(ENGINE *e, const char *id)
|
|
+{
|
|
+ if ((id && (strcmp(id, engine_devcrypto_id) != 0))
|
|
+ || !open_devcrypto())
|
|
+ return 0;
|
|
+ if (!bind_devcrypto(e)) {
|
|
+ close_devcrypto();
|
|
+ return 0;
|
|
+ }
|
|
+ return 1;
|
|
+}
|
|
+
|
|
+IMPLEMENT_DYNAMIC_CHECK_FN()
|
|
+IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
|
|
+
|
|
+#endif
|