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authorTom Rini <trini@konsulko.com>2017-11-14 08:39:35 -0500
committerTom Rini <trini@konsulko.com>2017-11-21 07:43:31 -0500
commitc6831c74a9e9dbedc351de94d23d35188ae1a39b (patch)
treeec3444def18bc20f81dce3594b01dfdba9097949 /env/common.c
parent042de609ed49cfc41afb13639850c7b01079a527 (diff)
env: Remove CONFIG_ENV_AES support
This support has been deprecated since v2017.09 due to security issues. We now remove this support. Signed-off-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'env/common.c')
-rw-r--r--env/common.c61
1 files changed, 0 insertions, 61 deletions
diff --git a/env/common.c b/env/common.c
index 70715bb6e7..8167ea2992 100644
--- a/env/common.c
+++ b/env/common.c
@@ -103,52 +103,6 @@ int set_default_vars(int nvars, char * const vars[])
H_NOCLEAR | H_INTERACTIVE, 0, nvars, vars);
}
-#ifdef CONFIG_ENV_AES
-#include <uboot_aes.h>
-/**
- * env_aes_cbc_get_key() - Get AES-128-CBC key for the environment
- *
- * This function shall return 16-byte array containing AES-128 key used
- * to encrypt and decrypt the environment. This function must be overridden
- * by the implementer as otherwise the environment encryption will not
- * work.
- */
-__weak uint8_t *env_aes_cbc_get_key(void)
-{
- return NULL;
-}
-
-static int env_aes_cbc_crypt(env_t *env, const int enc)
-{
- unsigned char *data = env->data;
- uint8_t *key;
- uint8_t key_exp[AES_EXPAND_KEY_LENGTH];
- uint32_t aes_blocks;
-
- key = env_aes_cbc_get_key();
- if (!key)
- return -EINVAL;
-
- /* First we expand the key. */
- aes_expand_key(key, key_exp);
-
- /* Calculate the number of AES blocks to encrypt. */
- aes_blocks = ENV_SIZE / AES_KEY_LENGTH;
-
- if (enc)
- aes_cbc_encrypt_blocks(key_exp, data, data, aes_blocks);
- else
- aes_cbc_decrypt_blocks(key_exp, data, data, aes_blocks);
-
- return 0;
-}
-#else
-static inline int env_aes_cbc_crypt(env_t *env, const int enc)
-{
- return 0;
-}
-#endif
-
/*
* Check if CRC is valid and (if yes) import the environment.
* Note that "buf" may or may not be aligned.
@@ -156,7 +110,6 @@ static inline int env_aes_cbc_crypt(env_t *env, const int enc)
int env_import(const char *buf, int check)
{
env_t *ep = (env_t *)buf;
- int ret;
if (check) {
uint32_t crc;
@@ -169,14 +122,6 @@ int env_import(const char *buf, int check)
}
}
- /* Decrypt the env if desired. */
- ret = env_aes_cbc_crypt(ep, 0);
- if (ret) {
- pr_err("Failed to decrypt env!\n");
- set_default_env("!import failed");
- return ret;
- }
-
if (himport_r(&env_htab, (char *)ep->data, ENV_SIZE, '\0', 0, 0,
0, NULL)) {
gd->flags |= GD_FLG_ENV_READY;
@@ -242,7 +187,6 @@ int env_export(env_t *env_out)
{
char *res;
ssize_t len;
- int ret;
res = (char *)env_out->data;
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
@@ -251,11 +195,6 @@ int env_export(env_t *env_out)
return 1;
}
- /* Encrypt the env if desired. */
- ret = env_aes_cbc_crypt(env_out, 1);
- if (ret)
- return ret;
-
env_out->crc = crc32(0, env_out->data, ENV_SIZE);
#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT