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rsa: Fix build with OpenSSL 1.1.x

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The rsa_st struct has been made opaque in 1.1.x, add forward compatible
code to access the n, e, d members of rsa_struct.

EVP_MD_CTX_cleanup has been removed in 1.1.x and EVP_MD_CTX_reset should be
called to reinitialise an already created structure.
This commit is contained in:
Jelle van der Waa 2017-05-08 21:31:19 +02:00 • committed by Tom Rini
parent 8cfb77387e
commit c3b4328166
1 changed files with 38 additions and 6 deletions
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42
lib/rsa/rsa-sign.c
View file

@ -9,6 +9,7 @@
#include <string.h> #include <string.h>
#include <image.h> #include <image.h>
#include <time.h> #include <time.h>
#include <openssl/bn.h>
#include <openssl/rsa.h> #include <openssl/rsa.h>
#include <openssl/pem.h> #include <openssl/pem.h>
#include <openssl/err.h> #include <openssl/err.h>
@ -20,6 +21,19 @@
#define HAVE_ERR_REMOVE_THREAD_STATE #define HAVE_ERR_REMOVE_THREAD_STATE
#endif #endif
#if OPENSSL_VERSION_NUMBER < 0x10100000L
static void RSA_get0_key(const RSA *r,
const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
{
if (n != NULL)
*n = r->n;
if (e != NULL)
*e = r->e;
if (d != NULL)
*d = r->d;
}
#endif
static int rsa_err(const char *msg) static int rsa_err(const char *msg)
{ {
unsigned long sslErr = ERR_get_error(); unsigned long sslErr = ERR_get_error();
@ -286,16 +300,22 @@ static int rsa_init(void)
{ {
int ret; int ret;
#if OPENSSL_VERSION_NUMBER < 0x10100000L
ret = SSL_library_init(); ret = SSL_library_init();
#else
ret = OPENSSL_init_ssl(0, NULL);
#endif
if (!ret) { if (!ret) {
fprintf(stderr, "Failure to init SSL library\n"); fprintf(stderr, "Failure to init SSL library\n");
return -1; return -1;
} }
#if OPENSSL_VERSION_NUMBER < 0x10100000L
SSL_load_error_strings(); SSL_load_error_strings();
OpenSSL_add_all_algorithms(); OpenSSL_add_all_algorithms();
OpenSSL_add_all_digests(); OpenSSL_add_all_digests();
OpenSSL_add_all_ciphers(); OpenSSL_add_all_ciphers();
#endif
return 0; return 0;
} }
@ -335,12 +355,15 @@ err_set_rsa:
err_engine_init: err_engine_init:
ENGINE_free(e); ENGINE_free(e);
err_engine_by_id: err_engine_by_id:
#if OPENSSL_VERSION_NUMBER < 0x10100000L
ENGINE_cleanup(); ENGINE_cleanup();
#endif
return ret; return ret;
} }
static void rsa_remove(void) static void rsa_remove(void)
{ {
#if OPENSSL_VERSION_NUMBER < 0x10100000L
CRYPTO_cleanup_all_ex_data(); CRYPTO_cleanup_all_ex_data();
ERR_free_strings(); ERR_free_strings();
#ifdef HAVE_ERR_REMOVE_THREAD_STATE #ifdef HAVE_ERR_REMOVE_THREAD_STATE
@ -349,6 +372,7 @@ static void rsa_remove(void)
ERR_remove_state(0); ERR_remove_state(0);
#endif #endif
EVP_cleanup(); EVP_cleanup();
#endif
} }
static void rsa_engine_remove(ENGINE *e) static void rsa_engine_remove(ENGINE *e)
@ -409,7 +433,11 @@ static int rsa_sign_with_key(RSA *rsa, struct checksum_algo *checksum_algo,
ret = rsa_err("Could not obtain signature"); ret = rsa_err("Could not obtain signature");
goto err_sign; goto err_sign;
} }
#if OPENSSL_VERSION_NUMBER < 0x10100000L
EVP_MD_CTX_cleanup(context); EVP_MD_CTX_cleanup(context);
#else
EVP_MD_CTX_reset(context);
#endif
EVP_MD_CTX_destroy(context); EVP_MD_CTX_destroy(context);
EVP_PKEY_free(key); EVP_PKEY_free(key);
@ -479,6 +507,7 @@ static int rsa_get_exponent(RSA *key, uint64_t *e)
{ {
int ret; int ret;
BIGNUM *bn_te; BIGNUM *bn_te;
const BIGNUM *key_e;
uint64_t te; uint64_t te;
ret = -EINVAL; ret = -EINVAL;
@ -487,17 +516,18 @@ static int rsa_get_exponent(RSA *key, uint64_t *e)
if (!e) if (!e)
goto cleanup; goto cleanup;
if (BN_num_bits(key->e) > 64) RSA_get0_key(key, NULL, &key_e, NULL);
if (BN_num_bits(key_e) > 64)
goto cleanup; goto cleanup;
*e = BN_get_word(key->e); *e = BN_get_word(key_e);
if (BN_num_bits(key->e) < 33) { if (BN_num_bits(key_e) < 33) {
ret = 0; ret = 0;
goto cleanup; goto cleanup;
} }
bn_te = BN_dup(key->e); bn_te = BN_dup(key_e);
if (!bn_te) if (!bn_te)
goto cleanup; goto cleanup;
@ -527,6 +557,7 @@ int rsa_get_params(RSA *key, uint64_t *exponent, uint32_t *n0_invp,
{ {
BIGNUM *big1, *big2, *big32, *big2_32; BIGNUM *big1, *big2, *big32, *big2_32;
BIGNUM *n, *r, *r_squared, *tmp; BIGNUM *n, *r, *r_squared, *tmp;
const BIGNUM *key_n;
BN_CTX *bn_ctx = BN_CTX_new(); BN_CTX *bn_ctx = BN_CTX_new();
int ret = 0; int ret = 0;
@ -548,7 +579,8 @@ int rsa_get_params(RSA *key, uint64_t *exponent, uint32_t *n0_invp,
if (0 != rsa_get_exponent(key, exponent)) if (0 != rsa_get_exponent(key, exponent))
ret = -1; ret = -1;
if (!BN_copy(n, key->n) || !BN_set_word(big1, 1L) || RSA_get0_key(key, &key_n, NULL, NULL);
if (!BN_copy(n, key_n) || !BN_set_word(big1, 1L) ||
!BN_set_word(big2, 2L) || !BN_set_word(big32, 32L)) !BN_set_word(big2, 2L) || !BN_set_word(big32, 32L))
ret = -1; ret = -1;