From 8d2a02b24d66aa359e83eebc1ed3c0f85367a1cb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 16 May 2024 03:11:33 +0000
Subject: [PATCH] AX88772C_eeprom and ax8872c build together
---
kernel/crypto/asymmetric_keys/x509_cert_parser.c | 101 ++++++++++++++++++++++++++++++++++++++++----------
1 files changed, 80 insertions(+), 21 deletions(-)
diff --git a/kernel/crypto/asymmetric_keys/x509_cert_parser.c b/kernel/crypto/asymmetric_keys/x509_cert_parser.c
index b6cabac..52c9b45 100644
--- a/kernel/crypto/asymmetric_keys/x509_cert_parser.c
+++ b/kernel/crypto/asymmetric_keys/x509_cert_parser.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* X.509 certificate parser
*
* Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
*/
#define pr_fmt(fmt) "X.509: "fmt
@@ -26,6 +22,9 @@
const void *cert_start; /* Start of cert content */
const void *key; /* Key data */
size_t key_size; /* Size of key data */
+ const void *params; /* Key parameters */
+ size_t params_size; /* Size of key parameters */
+ enum OID key_algo; /* Public key algorithm */
enum OID last_oid; /* Last OID encountered */
enum OID algo_oid; /* Algorithm OID */
unsigned char nr_mpi; /* Number of MPIs stored */
@@ -108,6 +107,13 @@
goto error_decode;
cert->pub->keylen = ctx->key_size;
+
+ cert->pub->params = kmemdup(ctx->params, ctx->params_size, GFP_KERNEL);
+ if (!cert->pub->params)
+ goto error_decode;
+
+ cert->pub->paramlen = ctx->params_size;
+ cert->pub->algo = ctx->key_algo;
/* Grab the signature bits */
ret = x509_get_sig_params(cert);
@@ -199,35 +205,54 @@
case OID_md4WithRSAEncryption:
ctx->cert->sig->hash_algo = "md4";
- ctx->cert->sig->pkey_algo = "rsa";
- break;
+ goto rsa_pkcs1;
case OID_sha1WithRSAEncryption:
ctx->cert->sig->hash_algo = "sha1";
- ctx->cert->sig->pkey_algo = "rsa";
- break;
+ goto rsa_pkcs1;
case OID_sha256WithRSAEncryption:
ctx->cert->sig->hash_algo = "sha256";
- ctx->cert->sig->pkey_algo = "rsa";
- break;
+ goto rsa_pkcs1;
case OID_sha384WithRSAEncryption:
ctx->cert->sig->hash_algo = "sha384";
- ctx->cert->sig->pkey_algo = "rsa";
- break;
+ goto rsa_pkcs1;
case OID_sha512WithRSAEncryption:
ctx->cert->sig->hash_algo = "sha512";
- ctx->cert->sig->pkey_algo = "rsa";
- break;
+ goto rsa_pkcs1;
case OID_sha224WithRSAEncryption:
ctx->cert->sig->hash_algo = "sha224";
- ctx->cert->sig->pkey_algo = "rsa";
- break;
+ goto rsa_pkcs1;
+
+ case OID_gost2012Signature256:
+ ctx->cert->sig->hash_algo = "streebog256";
+ goto ecrdsa;
+
+ case OID_gost2012Signature512:
+ ctx->cert->sig->hash_algo = "streebog512";
+ goto ecrdsa;
+
+ case OID_SM2_with_SM3:
+ ctx->cert->sig->hash_algo = "sm3";
+ goto sm2;
}
+rsa_pkcs1:
+ ctx->cert->sig->pkey_algo = "rsa";
+ ctx->cert->sig->encoding = "pkcs1";
+ ctx->algo_oid = ctx->last_oid;
+ return 0;
+ecrdsa:
+ ctx->cert->sig->pkey_algo = "ecrdsa";
+ ctx->cert->sig->encoding = "raw";
+ ctx->algo_oid = ctx->last_oid;
+ return 0;
+sm2:
+ ctx->cert->sig->pkey_algo = "sm2";
+ ctx->cert->sig->encoding = "raw";
ctx->algo_oid = ctx->last_oid;
return 0;
}
@@ -249,7 +274,9 @@
return -EINVAL;
}
- if (strcmp(ctx->cert->sig->pkey_algo, "rsa") == 0) {
+ if (strcmp(ctx->cert->sig->pkey_algo, "rsa") == 0 ||
+ strcmp(ctx->cert->sig->pkey_algo, "ecrdsa") == 0 ||
+ strcmp(ctx->cert->sig->pkey_algo, "sm2") == 0) {
/* Discard the BIT STRING metadata */
if (vlen < 1 || *(const u8 *)value != 0)
return -EBADMSG;
@@ -404,6 +431,27 @@
}
/*
+ * Extract the parameters for the public key
+ */
+int x509_note_params(void *context, size_t hdrlen,
+ unsigned char tag,
+ const void *value, size_t vlen)
+{
+ struct x509_parse_context *ctx = context;
+
+ /*
+ * AlgorithmIdentifier is used three times in the x509, we should skip
+ * first and ignore third, using second one which is after subject and
+ * before subjectPublicKey.
+ */
+ if (!ctx->cert->raw_subject || ctx->key)
+ return 0;
+ ctx->params = value - hdrlen;
+ ctx->params_size = vlen + hdrlen;
+ return 0;
+}
+
+/*
* Extract the data for the public key algorithm
*/
int x509_extract_key_data(void *context, size_t hdrlen,
@@ -412,10 +460,21 @@
{
struct x509_parse_context *ctx = context;
- if (ctx->last_oid != OID_rsaEncryption)
+ ctx->key_algo = ctx->last_oid;
+ switch (ctx->last_oid) {
+ case OID_rsaEncryption:
+ ctx->cert->pub->pkey_algo = "rsa";
+ break;
+ case OID_gost2012PKey256:
+ case OID_gost2012PKey512:
+ ctx->cert->pub->pkey_algo = "ecrdsa";
+ break;
+ case OID_id_ecPublicKey:
+ ctx->cert->pub->pkey_algo = "sm2";
+ break;
+ default:
return -ENOPKG;
-
- ctx->cert->pub->pkey_algo = "rsa";
+ }
/* Discard the BIT STRING metadata */
if (vlen < 1 || *(const u8 *)value != 0)
--
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