diff options
Diffstat (limited to 'lib/crypto/c_src/crypto.c')
| -rw-r--r-- | lib/crypto/c_src/crypto.c | 43 |
1 files changed, 39 insertions, 4 deletions
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c index 948093d69c..e7215eeb64 100644 --- a/lib/crypto/c_src/crypto.c +++ b/lib/crypto/c_src/crypto.c @@ -462,9 +462,11 @@ static void hmac_context_dtor(ErlNifEnv* env, struct hmac_context*); /* #define PRINTF_ERR0(FMT) enif_fprintf(stderr, FMT "\n") #define PRINTF_ERR1(FMT, A1) enif_fprintf(stderr, FMT "\n", A1) +#define PRINTF_ERR2(FMT, A1, A2) enif_fprintf(stderr, FMT "\n", A1, A2) */ #define PRINTF_ERR0(FMT) #define PRINTF_ERR1(FMT,A1) +#define PRINTF_ERR2(FMT,A1,A2) #ifdef __OSE__ @@ -506,7 +508,33 @@ static int init_ose_crypto() { #define CHECK_OSE_CRYPTO() #endif + +static int verify_lib_version(void) +{ + const unsigned long libv = SSLeay(); + const unsigned long hdrv = OPENSSL_VERSION_NUMBER; + +# define MAJOR_VER(V) ((unsigned long)(V) >> (7*4)) + + if (MAJOR_VER(libv) != MAJOR_VER(hdrv)) { + PRINTF_ERR2("CRYPTO: INCOMPATIBLE SSL VERSION" + " lib=%lx header=%lx\n", libv, hdrv); + return 0; + } + return 1; +} + + #ifdef HAVE_DYNAMIC_CRYPTO_LIB + +# if defined(DEBUG) +static char crypto_callback_name[] = "crypto_callback.debug"; +# elif defined(VALGRIND) +static char crypto_callback_name[] = "crypto_callback.valgrind"; +# else +static char crypto_callback_name[] = "crypto_callback"; +# endif + static int change_basename(ErlNifBinary* bin, char* buf, int bufsz, const char* newfile) { int i; @@ -545,6 +573,9 @@ static int init(ErlNifEnv* env, ERL_NIF_TERM load_info) if (!INIT_OSE_CRYPTO()) return 0; + if (!verify_lib_version()) + return 0; + /* load_info: {301, <<"/full/path/of/this/library">>} */ if (!enif_get_tuple(env, load_info, &tpl_arity, &tpl_array) || tpl_arity != 2 @@ -613,7 +644,7 @@ static int init(ErlNifEnv* env, ERL_NIF_TERM load_info) #ifdef HAVE_DYNAMIC_CRYPTO_LIB { void* handle; - if (!change_basename(&lib_bin, lib_buf, sizeof(lib_buf), "crypto_callback")) { + if (!change_basename(&lib_bin, lib_buf, sizeof(lib_buf), crypto_callback_name)) { return 0; } if (!(handle = enif_dlopen(lib_buf, &error_handler, NULL))) { @@ -2897,8 +2928,8 @@ static ERL_NIF_TERM srp_user_secret_nif(ErlNifEnv* env, int argc, const ERL_NIF_ /* a + (u * x) */ bn_exp2 = BN_new(); - BN_mod_mul(bn_result, bn_u, bn_exponent, bn_prime, bn_ctx); - BN_mod_add(bn_exp2, bn_a, bn_result, bn_prime, bn_ctx); + BN_mul(bn_result, bn_u, bn_exponent, bn_ctx); + BN_add(bn_exp2, bn_a, bn_result); /* (B - (k * g^x)) ^ (a + (u * x)) % N */ BN_mod_exp(bn_result, bn_base, bn_exp2, bn_prime, bn_ctx); @@ -3244,6 +3275,7 @@ out: if (bn_order) BN_free(bn_order); if (cofactor) BN_free(cofactor); if (group) EC_GROUP_free(group); + if (point) EC_POINT_free(point); return key; } @@ -3406,8 +3438,11 @@ static ERL_NIF_TERM ec_key_generate(ErlNifEnv* env, int argc, const ERL_NIF_TERM EC_KEY_free(key); return enif_make_tuple2(env, pub_key, priv_key); } - else + else { + if (key) + EC_KEY_free(key); return enif_make_badarg(env); + } #else return atom_notsup; #endif |