mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-25 00:11:13 +00:00
ddee1825de
Applies a patch from https://github.com/openssl/openssl/pull/8213 that fixes an error where open /dev/crypto sessions were not closed. Thanks to Ansuel Smith for reporting it. Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
116 lines
4.0 KiB
Diff
116 lines
4.0 KiB
Diff
From 82b269fd77d20aa86d0825d798f3045dfe0a7a86 Mon Sep 17 00:00:00 2001
|
|
From: Eneas U de Queiroz <cote2004-github@yahoo.com>
|
|
Date: Tue, 12 Feb 2019 10:44:19 -0200
|
|
Subject: [PATCH] eng_devcrypto: close open session on init
|
|
|
|
cipher_init may be called on an already initialized context, without a
|
|
necessary cleanup. This separates cleanup from initialization, closing
|
|
an eventual open session before creating a new one.
|
|
|
|
Move the /dev/crypto session cleanup code to its own function.
|
|
|
|
Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>
|
|
|
|
--- a/crypto/engine/eng_devcrypto.c
|
|
+++ b/crypto/engine/eng_devcrypto.c
|
|
@@ -35,6 +35,15 @@
|
|
*/
|
|
static int cfd;
|
|
|
|
+static int clean_devcrypto_session(struct session_op *sess) {
|
|
+ if (ioctl(cfd, CIOCFSESSION, &sess->ses) < 0) {
|
|
+ SYSerr(SYS_F_IOCTL, errno);
|
|
+ return 0;
|
|
+ }
|
|
+ memset(sess, 0, sizeof(struct session_op));
|
|
+ return 1;
|
|
+}
|
|
+
|
|
/******************************************************************************
|
|
*
|
|
* Ciphers
|
|
@@ -143,7 +152,11 @@ static int cipher_init(EVP_CIPHER_CTX *c
|
|
const struct cipher_data_st *cipher_d =
|
|
get_cipher_data(EVP_CIPHER_CTX_nid(ctx));
|
|
|
|
- memset(&cipher_ctx->sess, 0, sizeof(cipher_ctx->sess));
|
|
+ /* cleanup a previous session */
|
|
+ if (cipher_ctx->sess.ses != 0 &&
|
|
+ clean_devcrypto_session(&cipher_ctx->sess) == 0)
|
|
+ return 0;
|
|
+
|
|
cipher_ctx->sess.cipher = cipher_d->devcryptoid;
|
|
cipher_ctx->sess.keylen = cipher_d->keylen;
|
|
cipher_ctx->sess.key = (void *)key;
|
|
@@ -282,15 +295,29 @@ static int ctr_do_cipher(EVP_CIPHER_CTX
|
|
|
|
static int cipher_ctrl(EVP_CIPHER_CTX *ctx, int type, int p1, void* p2)
|
|
{
|
|
+ struct cipher_ctx *cipher_ctx =
|
|
+ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
|
|
EVP_CIPHER_CTX *to_ctx = (EVP_CIPHER_CTX *)p2;
|
|
- struct cipher_ctx *cipher_ctx;
|
|
+ struct cipher_ctx *to_cipher_ctx;
|
|
+
|
|
+ switch (type) {
|
|
|
|
- if (type == EVP_CTRL_COPY) {
|
|
+ case EVP_CTRL_COPY:
|
|
+ if (cipher_ctx == NULL)
|
|
+ return 1;
|
|
/* when copying the context, a new session needs to be initialized */
|
|
- cipher_ctx = (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
|
|
- return (cipher_ctx == NULL)
|
|
- || cipher_init(to_ctx, cipher_ctx->sess.key, EVP_CIPHER_CTX_iv(ctx),
|
|
+ to_cipher_ctx =
|
|
+ (struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(to_ctx);
|
|
+ memset(&to_cipher_ctx->sess, 0, sizeof(to_cipher_ctx->sess));
|
|
+ return cipher_init(to_ctx, cipher_ctx->sess.key, EVP_CIPHER_CTX_iv(ctx),
|
|
(cipher_ctx->op == COP_ENCRYPT));
|
|
+
|
|
+ case EVP_CTRL_INIT:
|
|
+ memset(&cipher_ctx->sess, 0, sizeof(cipher_ctx->sess));
|
|
+ return 1;
|
|
+
|
|
+ default:
|
|
+ break;
|
|
}
|
|
|
|
return -1;
|
|
@@ -301,12 +328,7 @@ static int cipher_cleanup(EVP_CIPHER_CTX
|
|
struct cipher_ctx *cipher_ctx =
|
|
(struct cipher_ctx *)EVP_CIPHER_CTX_get_cipher_data(ctx);
|
|
|
|
- if (ioctl(cfd, CIOCFSESSION, &cipher_ctx->sess.ses) < 0) {
|
|
- SYSerr(SYS_F_IOCTL, errno);
|
|
- return 0;
|
|
- }
|
|
-
|
|
- return 1;
|
|
+ return clean_devcrypto_session(&cipher_ctx->sess);
|
|
}
|
|
|
|
/*
|
|
@@ -352,6 +374,7 @@ static void prepare_cipher_methods(void)
|
|
|| !EVP_CIPHER_meth_set_flags(known_cipher_methods[i],
|
|
cipher_data[i].flags
|
|
| EVP_CIPH_CUSTOM_COPY
|
|
+ | EVP_CIPH_CTRL_INIT
|
|
| EVP_CIPH_FLAG_DEFAULT_ASN1)
|
|
|| !EVP_CIPHER_meth_set_init(known_cipher_methods[i], cipher_init)
|
|
|| !EVP_CIPHER_meth_set_do_cipher(known_cipher_methods[i],
|
|
@@ -594,11 +617,8 @@ static int digest_cleanup(EVP_MD_CTX *ct
|
|
|
|
if (digest_ctx == NULL)
|
|
return 1;
|
|
- if (ioctl(cfd, CIOCFSESSION, &digest_ctx->sess.ses) < 0) {
|
|
- SYSerr(SYS_F_IOCTL, errno);
|
|
- return 0;
|
|
- }
|
|
- return 1;
|
|
+
|
|
+ return clean_devcrypto_session(&digest_ctx->sess);
|
|
}
|
|
|
|
static int devcrypto_test_digest(size_t digest_data_index)
|