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authorSverker Eriksson <[email protected]>2016-04-07 15:22:18 +0200
committerSverker Eriksson <[email protected]>2016-04-07 15:22:18 +0200
commit181171aa5ed3a1e7426275abe5ca30bb0db3a731 (patch)
tree0a069bee4961962fe5c54ad299cf6dfa3d7281e0 /lib
parent9e3d98d67a9fbc62aa54b3035b953eb94486cdf7 (diff)
parentc39bf9440f0c4ee1a4da97467beb0d1cd2d12c25 (diff)
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Merge branch 'sverk/crypto/no-ec2m'
Diffstat (limited to 'lib')
-rw-r--r--lib/crypto/c_src/crypto.c202
1 files changed, 113 insertions, 89 deletions
diff --git a/lib/crypto/c_src/crypto.c b/lib/crypto/c_src/crypto.c
index d1f620d892..74cdecdec6 100644
--- a/lib/crypto/c_src/crypto.c
+++ b/lib/crypto/c_src/crypto.c
@@ -378,86 +378,96 @@ struct hmac_context
static void hmac_context_dtor(ErlNifEnv* env, struct hmac_context*);
struct digest_type_t {
- const char* type_str;
- const EVP_MD* (*md_func)(void); /* NULL if notsup */
- ERL_NIF_TERM type_atom;
+ union {
+ const char* str; /* before init, NULL for end-of-table */
+ ERL_NIF_TERM atom; /* after init, 'false' for end-of-table */
+ }type;
+ union {
+ const EVP_MD* (*funcp)(void); /* before init, NULL if notsup */
+ const EVP_MD* p; /* after init, NULL if notsup */
+ }md;
};
struct digest_type_t digest_types[] =
{
- {"md4", &EVP_md4},
- {"md5", &EVP_md5},
- {"ripemd160", &EVP_ripemd160},
- {"sha", &EVP_sha1},
- {"sha224",
+ {{"md4"}, {&EVP_md4}},
+ {{"md5"}, {&EVP_md5}},
+ {{"ripemd160"}, {&EVP_ripemd160}},
+ {{"sha"}, {&EVP_sha1}},
+ {{"sha224"},
#ifdef HAVE_SHA224
- &EVP_sha224
+ {&EVP_sha224}
#else
- NULL
+ {NULL}
#endif
},
- {"sha256",
+ {{"sha256"},
#ifdef HAVE_SHA256
- &EVP_sha256
+ {&EVP_sha256}
#else
- NULL
+ {NULL}
#endif
},
- {"sha384",
+ {{"sha384"},
#ifdef HAVE_SHA384
- &EVP_sha384
+ {&EVP_sha384}
#else
- NULL
+ {NULL}
#endif
},
- {"sha512",
+ {{"sha512"},
#ifdef HAVE_SHA512
- &EVP_sha512
+ {&EVP_sha512}
#else
- NULL
+ {NULL}
#endif
},
- {NULL}
+ {{NULL}}
};
static struct digest_type_t* get_digest_type(ERL_NIF_TERM type);
struct cipher_type_t {
- const char* type_str;
- const EVP_CIPHER* (*cipher_func)(void); /* NULL if notsup */
+ union {
+ const char* str; /* before init */
+ ERL_NIF_TERM atom; /* after init */
+ }type;
+ union {
+ const EVP_CIPHER* (*funcp)(void); /* before init, NULL if notsup */
+ const EVP_CIPHER* p; /* after init, NULL if notsup */
+ }cipher;
const size_t key_len; /* != 0 to also match on key_len */
- ERL_NIF_TERM type_atom;
};
struct cipher_type_t cipher_types[] =
{
- {"rc2_cbc", &EVP_rc2_cbc},
- {"des_cbc", &EVP_des_cbc},
- {"des_cfb", &EVP_des_cfb8},
- {"des_ecb", &EVP_des_ecb},
- {"des_ede3_cbc", &EVP_des_ede3_cbc},
- {"des_ede3_cbf",
+ {{"rc2_cbc"}, {&EVP_rc2_cbc}},
+ {{"des_cbc"}, {&EVP_des_cbc}},
+ {{"des_cfb"}, {&EVP_des_cfb8}},
+ {{"des_ecb"}, {&EVP_des_ecb}},
+ {{"des_ede3_cbc"}, {&EVP_des_ede3_cbc}},
+ {{"des_ede3_cbf"},
#ifdef HAVE_DES_ede3_cfb_encrypt
- &EVP_des_ede3_cfb8
+ {&EVP_des_ede3_cfb8}
#else
- NULL
+ {NULL}
#endif
},
- {"blowfish_cbc", &EVP_bf_cbc},
- {"blowfish_cfb64", &EVP_bf_cfb64},
- {"blowfish_ofb64", &EVP_bf_ofb},
- {"blowfish_ecb", &EVP_bf_ecb},
- {"aes_cbc", &EVP_aes_128_cbc, 16},
- {"aes_cbc", &EVP_aes_192_cbc, 24},
- {"aes_cbc", &EVP_aes_256_cbc, 32},
- {"aes_cbc128", &EVP_aes_128_cbc},
- {"aes_cbc256", &EVP_aes_256_cbc},
- {"aes_cfb8", &EVP_aes_128_cfb8},
- {"aes_cfb128", &EVP_aes_128_cfb128},
- {"aes_ecb", &EVP_aes_128_ecb, 16},
- {"aes_ecb", &EVP_aes_192_ecb, 24},
- {"aes_ecb", &EVP_aes_256_ecb, 32},
- {NULL}
+ {{"blowfish_cbc"}, {&EVP_bf_cbc}},
+ {{"blowfish_cfb64"}, {&EVP_bf_cfb64}},
+ {{"blowfish_ofb64"}, {&EVP_bf_ofb}},
+ {{"blowfish_ecb"}, {&EVP_bf_ecb}},
+ {{"aes_cbc"}, {&EVP_aes_128_cbc}, 16},
+ {{"aes_cbc"}, {&EVP_aes_192_cbc}, 24},
+ {{"aes_cbc"}, {&EVP_aes_256_cbc}, 32},
+ {{"aes_cbc128"}, {&EVP_aes_128_cbc}},
+ {{"aes_cbc256"}, {&EVP_aes_256_cbc}},
+ {{"aes_cfb8"}, {&EVP_aes_128_cfb8}},
+ {{"aes_cfb128"}, {&EVP_aes_128_cfb128}},
+ {{"aes_ecb"}, {&EVP_aes_128_ecb}, 16},
+ {{"aes_ecb"}, {&EVP_aes_192_ecb}, 24},
+ {{"aes_ecb"}, {&EVP_aes_256_ecb}, 32},
+ {{NULL}}
};
static struct cipher_type_t* get_cipher_type(ERL_NIF_TERM type, size_t key_len);
@@ -829,6 +839,15 @@ static ERL_NIF_TERM info_lib(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]
ver_term));
}
+static ERL_NIF_TERM make_badarg_maybe(ErlNifEnv* env)
+{
+ ERL_NIF_TERM reason;
+ if (enif_has_pending_exception(env, &reason))
+ return reason; /* dummy return value ignored */
+ else
+ return enif_make_badarg(env);
+}
+
static ERL_NIF_TERM hash_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
{/* (Type, Data) */
struct digest_type_t *digp = NULL;
@@ -842,11 +861,11 @@ static ERL_NIF_TERM hash_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]
!enif_inspect_iolist_as_binary(env, argv[1], &data)) {
return enif_make_badarg(env);
}
- if (!digp->md_func) {
+ md = digp->md.p;
+ if (!md) {
return atom_notsup;
}
- md = digp->md_func();
ret_size = (unsigned)EVP_MD_size(md);
ASSERT(0 < ret_size && ret_size <= EVP_MAX_MD_SIZE);
if (!EVP_Digest(data.data, data.size,
@@ -872,12 +891,12 @@ static ERL_NIF_TERM hash_init_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM a
if (!digp) {
return enif_make_badarg(env);
}
- if (!digp->md_func) {
+ if (!digp->md.p) {
return atom_notsup;
}
ctx = enif_alloc_resource(evp_md_ctx_rtype, sizeof(EVP_MD_CTX));
- if (!EVP_DigestInit(ctx, digp->md_func())) {
+ if (!EVP_DigestInit(ctx, digp->md.p)) {
enif_release_resource(ctx);
return atom_notsup;
}
@@ -946,11 +965,11 @@ static ERL_NIF_TERM hash_init_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM a
if (!digp) {
return enif_make_badarg(env);
}
- if (!digp->md_func) {
+ if (!digp->md.p) {
return atom_notsup;
}
- switch (EVP_MD_type(digp->md_func()))
+ switch (EVP_MD_type(digp->md.p))
{
case NID_md4:
ctx_size = MD4_CTX_LEN;
@@ -1020,11 +1039,11 @@ static ERL_NIF_TERM hash_update_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
!enif_inspect_iolist_as_binary(env, argv[1], &data)) {
return enif_make_badarg(env);
}
- if (!digp->md_func) {
+ if (!digp->md.p) {
return atom_notsup;
}
- switch (EVP_MD_type(digp->md_func()))
+ switch (EVP_MD_type(digp->md.p))
{
case NID_md4:
ctx_size = MD4_CTX_LEN;
@@ -1102,11 +1121,11 @@ static ERL_NIF_TERM hash_final_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
!enif_inspect_binary(env, tuple[1], &ctx)) {
return enif_make_badarg(env);
}
- if (!digp->md_func) {
+ md = digp->md.p;
+ if (!md) {
return atom_notsup;
}
- md = digp->md_func();
switch (EVP_MD_type(md))
{
@@ -1186,8 +1205,8 @@ static ERL_NIF_TERM hmac_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[]
return enif_make_badarg(env);
}
- if (!digp->md_func ||
- !HMAC(digp->md_func(),
+ if (!digp->md.p ||
+ !HMAC(digp->md.p,
key.data, key.size,
data.data, data.size,
buff, &size)) {
@@ -1229,7 +1248,7 @@ static ERL_NIF_TERM hmac_init_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM a
!enif_inspect_iolist_as_binary(env, argv[1], &key)) {
return enif_make_badarg(env);
}
- if (!digp->md_func) {
+ if (!digp->md.p) {
return atom_notsup;
}
@@ -1239,12 +1258,12 @@ static ERL_NIF_TERM hmac_init_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM a
#if OPENSSL_VERSION_NUMBER >= 0x1000000fL
// Check the return value of HMAC_Init: it may fail in FIPS mode
// for disabled algorithms
- if (!HMAC_Init(&obj->ctx, key.data, key.size, digp->md_func())) {
+ if (!HMAC_Init(&obj->ctx, key.data, key.size, digp->md.p)) {
enif_release_resource(obj);
return atom_notsup;
}
#else
- HMAC_Init(&obj->ctx, key.data, key.size, digp->md_func());
+ HMAC_Init(&obj->ctx, key.data, key.size, digp->md.p);
#endif
ret = enif_make_resource(env, obj);
@@ -1323,7 +1342,8 @@ static ERL_NIF_TERM block_crypt_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
|| !enif_inspect_iolist_as_binary(env, argv[argc - 2], &text)) {
return enif_make_badarg(env);
}
- if (!cipherp->cipher_func) {
+ cipher = cipherp->cipher.p;
+ if (!cipher) {
return enif_raise_exception(env, atom_notsup);
}
@@ -1335,7 +1355,6 @@ static ERL_NIF_TERM block_crypt_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
return aes_cfb_8_crypt(env, argc-1, argv+1);
}
- cipher = cipherp->cipher_func();
ivec_size = EVP_CIPHER_iv_length(cipher);
#ifdef HAVE_ECB_IVEC_BUG
@@ -2110,27 +2129,31 @@ static void init_digest_types(ErlNifEnv* env)
{
struct digest_type_t* p = digest_types;
- for (p = digest_types; p->type_str; p++) {
- p->type_atom = enif_make_atom(env, p->type_str);
+ for (p = digest_types; p->type.str; p++) {
+ p->type.atom = enif_make_atom(env, p->type.str);
+ if (p->md.funcp)
+ p->md.p = p->md.funcp();
}
-
+ p->type.atom = atom_false; /* end marker */
}
static void init_cipher_types(ErlNifEnv* env)
{
struct cipher_type_t* p = cipher_types;
- for (p = cipher_types; p->type_str; p++) {
- p->type_atom = enif_make_atom(env, p->type_str);
+ for (p = cipher_types; p->type.str; p++) {
+ p->type.atom = enif_make_atom(env, p->type.str);
+ if (p->cipher.funcp)
+ p->cipher.p = p->cipher.funcp();
}
-
+ p->type.atom = atom_false; /* end marker */
}
static struct digest_type_t* get_digest_type(ERL_NIF_TERM type)
{
struct digest_type_t* p = NULL;
- for (p = digest_types; p->type_str; p++) {
- if (type == p->type_atom) {
+ for (p = digest_types; p->type.atom != atom_false; p++) {
+ if (type == p->type.atom) {
return p;
}
}
@@ -2140,8 +2163,8 @@ static struct digest_type_t* get_digest_type(ERL_NIF_TERM type)
static struct cipher_type_t* get_cipher_type(ERL_NIF_TERM type, size_t key_len)
{
struct cipher_type_t* p = NULL;
- for (p = cipher_types; p->type_str; p++) {
- if (type == p->type_atom && (!p->key_len || key_len == p->key_len)) {
+ for (p = cipher_types; p->type.atom != atom_false; p++) {
+ if (type == p->type.atom && (!p->key_len || key_len == p->key_len)) {
return p;
}
}
@@ -2166,12 +2189,12 @@ static ERL_NIF_TERM rsa_verify_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
if (!digp) {
return enif_make_badarg(env);
}
- if (!digp->md_func) {
+ md = digp->md.p;
+ if (!md) {
return atom_notsup;
}
rsa = RSA_new();
- md = digp->md_func();
if (!enif_inspect_binary(env, argv[1], &digest_bin)
|| digest_bin.size != EVP_MD_size(md)
@@ -2329,10 +2352,10 @@ static ERL_NIF_TERM rsa_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM ar
if (!digp) {
return enif_make_badarg(env);
}
- if (!digp->md_func) {
+ md = digp->md.p;
+ if (!md) {
return atom_notsup;
}
- md = digp->md_func();
if (!enif_inspect_binary(env,argv[1],&digest_bin)
|| digest_bin.size != EVP_MD_size(md)) {
@@ -2904,8 +2927,7 @@ static EC_KEY* ec_key_new(ErlNifEnv* env, ERL_NIF_TERM curve_arg)
EC_POINT *point = NULL;
/* {Field, Prime, Point, Order, CoFactor} = Curve */
- if (enif_is_tuple(env, curve_arg)
- && enif_get_tuple(env,curve_arg,&c_arity,&curve)
+ if (enif_get_tuple(env,curve_arg,&c_arity,&curve)
&& c_arity == 5
&& get_bn_from_bin(env, curve[3], &bn_order)
&& (curve[4] != atom_none && get_bn_from_bin(env, curve[4], &cofactor))) {
@@ -2942,9 +2964,11 @@ static EC_KEY* ec_key_new(ErlNifEnv* env, ERL_NIF_TERM curve_arg)
/* create the EC_GROUP structure */
group = EC_GROUP_new_curve_GFp(p, a, b, NULL);
-#if !defined(OPENSSL_NO_EC2M)
-
} else if (f_arity == 3 && field[0] == atom_characteristic_two_field) {
+#if defined(OPENSSL_NO_EC2M)
+ enif_raise_exception(env, atom_notsup);
+ goto out_err;
+#else
/* {characteristic_two_field, M, Basis} */
int b_arity = -1;
@@ -3221,7 +3245,7 @@ static ERL_NIF_TERM ec_key_generate(ErlNifEnv* env, int argc, const ERL_NIF_TERM
badarg:
if (key)
EC_KEY_free(key);
- return enif_make_badarg(env);
+ return make_badarg_maybe(env);
#else
return atom_notsup;
#endif
@@ -3241,10 +3265,10 @@ static ERL_NIF_TERM ecdsa_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
if (!digp) {
return enif_make_badarg(env);
}
- if (!digp->md_func) {
+ md = digp->md.p;
+ if (!md) {
return atom_notsup;
}
- md = digp->md_func();
len = EVP_MD_size(md);
if (!enif_inspect_binary(env,argv[1],&digest_bin)
@@ -3272,7 +3296,7 @@ static ERL_NIF_TERM ecdsa_sign_nif(ErlNifEnv* env, int argc, const ERL_NIF_TERM
badarg:
if (key)
EC_KEY_free(key);
- return enif_make_badarg(env);
+ return make_badarg_maybe(env);
#else
return atom_notsup;
#endif
@@ -3292,10 +3316,10 @@ static ERL_NIF_TERM ecdsa_verify_nif(ErlNifEnv* env, int argc, const ERL_NIF_TER
if (!digp) {
return enif_make_badarg(env);
}
- if (!digp->md_func) {
+ md = digp->md.p;
+ if (!md) {
return atom_notsup;
}
- md = digp->md_func();
len = EVP_MD_size(md);
if (!enif_inspect_binary(env, argv[1], &digest_bin)
@@ -3314,7 +3338,7 @@ static ERL_NIF_TERM ecdsa_verify_nif(ErlNifEnv* env, int argc, const ERL_NIF_TER
badarg:
if (key)
EC_KEY_free(key);
- return enif_make_badarg(env);
+ return make_badarg_maybe(env);
#else
return atom_notsup;
#endif
@@ -3339,7 +3363,7 @@ static ERL_NIF_TERM ecdh_compute_key_nif(ErlNifEnv* env, int argc, const ERL_NIF
EC_KEY *other_ecdh = NULL;
if (!get_ec_key(env, argv[1], argv[2], atom_undefined, &key))
- return enif_make_badarg(env);
+ return make_badarg_maybe(env);
group = EC_GROUP_dup(EC_KEY_get0_group(key));
priv_key = EC_KEY_get0_private_key(key);