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Make all the crypto free() functions macros that clear their targets

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This commit is contained in:
Nick Mathewson 2017-11-17 11:55:52 -05:00
parent 94db8f32e4
commit 2f086888b1
6 changed files with 26 additions and 16 deletions
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10
src/common/crypto.c
View File

@ -529,7 +529,7 @@ crypto_pk_new,(void))
* are released, free the key.
*/
void
crypto_pk_free(crypto_pk_t *env)
crypto_pk_free_(crypto_pk_t *env)
{
if (!env)
return;
@ -592,7 +592,7 @@ crypto_cipher_new(const char *key)
/** Free a symmetric cipher.
*/
void
crypto_cipher_free(crypto_cipher_t *env)
crypto_cipher_free_(crypto_cipher_t *env)
{
if (!env)
return;
@ -1967,7 +1967,7 @@ crypto_digest512_new(digest_algorithm_t algorithm)
/** Deallocate a digest object.
*/
void
crypto_digest_free(crypto_digest_t *digest)
crypto_digest_free_(crypto_digest_t *digest)
{
if (!digest)
return;
@ -2214,7 +2214,7 @@ crypto_xof_squeeze_bytes(crypto_xof_t *xof, uint8_t *out, size_t len)
/** Cleanse and deallocate a XOF object. */
void
crypto_xof_free(crypto_xof_t *xof)
crypto_xof_free_(crypto_xof_t *xof)
{
if (!xof)
return;
@ -2767,7 +2767,7 @@ crypto_expand_key_material_rfc5869_sha256(
/** Free a DH key exchange object.
*/
void
crypto_dh_free(crypto_dh_t *dh)
crypto_dh_free_(crypto_dh_t *dh)
{
if (!dh)
return;

16
src/common/crypto.h
View File

@ -19,6 +19,7 @@
#include "torint.h"
#include "testsupport.h"
#include "compat.h"
#include "util.h"
#include <openssl/engine.h>
#include "keccak-tiny/keccak-tiny.h"
@ -146,7 +147,8 @@ int crypto_global_cleanup(void);
/* environment setup */
MOCK_DECL(crypto_pk_t *,crypto_pk_new,(void));
void crypto_pk_free(crypto_pk_t *env);
void crypto_pk_free_(crypto_pk_t *env);
#define crypto_pk_free(pk) FREE_AND_NULL(crypto_pk, (pk))
void crypto_set_tls_dh_prime(void);
crypto_cipher_t *crypto_cipher_new(const char *key);
@ -155,7 +157,8 @@ crypto_cipher_t *crypto_cipher_new_with_iv(const char *key, const char *iv);
crypto_cipher_t *crypto_cipher_new_with_iv_and_bits(const uint8_t *key,
const uint8_t *iv,
int bits);
void crypto_cipher_free(crypto_cipher_t *env);
void crypto_cipher_free_(crypto_cipher_t *env);
#define crypto_cipher_free(c) FREE_AND_NULL(crypto_cipher, (c))
/* public key crypto */
MOCK_DECL(int, crypto_pk_generate_key_with_bits,(crypto_pk_t *env, int bits));
@ -258,7 +261,8 @@ int crypto_digest_algorithm_parse_name(const char *name);
crypto_digest_t *crypto_digest_new(void);
crypto_digest_t *crypto_digest256_new(digest_algorithm_t algorithm);
crypto_digest_t *crypto_digest512_new(digest_algorithm_t algorithm);
void crypto_digest_free(crypto_digest_t *digest);
void crypto_digest_free_(crypto_digest_t *digest);
#define crypto_digest_free(d) FREE_AND_NULL(crypto_digest, (d))
void crypto_digest_add_bytes(crypto_digest_t *digest, const char *data,
size_t len);
void crypto_digest_get_digest(crypto_digest_t *digest,
@ -276,7 +280,8 @@ void crypto_mac_sha3_256(uint8_t *mac_out, size_t len_out,
crypto_xof_t *crypto_xof_new(void);
void crypto_xof_add_bytes(crypto_xof_t *xof, const uint8_t *data, size_t len);
void crypto_xof_squeeze_bytes(crypto_xof_t *xof, uint8_t *out, size_t len);
void crypto_xof_free(crypto_xof_t *xof);
void crypto_xof_free_(crypto_xof_t *xof);
#define crypto_xof_free(xof) FREE_AND_NULL(crypto_xof, (xof))
/* Key negotiation */
#define DH_TYPE_CIRCUIT 1
@ -291,7 +296,8 @@ int crypto_dh_get_public(crypto_dh_t *dh, char *pubkey_out,
ssize_t crypto_dh_compute_secret(int severity, crypto_dh_t *dh,
const char *pubkey, size_t pubkey_len,
char *secret_out, size_t secret_out_len);
void crypto_dh_free(crypto_dh_t *dh);
void crypto_dh_free_(crypto_dh_t *dh);
#define crypto_dh_free(dh) FREE_AND_NULL(crypto_dh, (dh))
int crypto_expand_key_material_TAP(const uint8_t *key_in,
size_t key_in_len,

2
src/common/crypto_ed25519.c
View File

@ -622,7 +622,7 @@ ed25519_pubkey_read_from_file(ed25519_public_key_t *pubkey_out,
/** Release all storage held for <b>kp</b>. */
void
ed25519_keypair_free(ed25519_keypair_t *kp)
ed25519_keypair_free_(ed25519_keypair_t *kp)
{
if (! kp)
return;

4
src/common/crypto_ed25519.h
View File

@ -7,6 +7,7 @@
#include "testsupport.h"
#include "torint.h"
#include "crypto_curve25519.h"
#include "util.h"
#define ED25519_PUBKEY_LEN 32
#define ED25519_SECKEY_LEN 64
@ -117,7 +118,8 @@ int ed25519_pubkey_read_from_file(ed25519_public_key_t *pubkey_out,
char **tag_out,
const char *filename);
void ed25519_keypair_free(ed25519_keypair_t *kp);
void ed25519_keypair_free_(ed25519_keypair_t *kp);
#define ed25519_keypair_free(kp) FREE_AND_NULL(ed25519_keypair, (kp))
int ed25519_pubkey_eq(const ed25519_public_key_t *key1,
const ed25519_public_key_t *key2);

4
src/common/tortls.c
View File

@ -644,7 +644,7 @@ static const char CLIENT_CIPHER_LIST[] =
/** Free all storage held in <b>cert</b> */
void
tor_x509_cert_free(tor_x509_cert_t *cert)
tor_x509_cert_free_(tor_x509_cert_t *cert)
{
if (! cert)
return;
@ -1792,7 +1792,7 @@ tor_tls_is_server(tor_tls_t *tls)
* underlying file descriptor.
*/
void
tor_tls_free(tor_tls_t *tls)
tor_tls_free_(tor_tls_t *tls)
{
if (!tls)
return;

6
src/common/tortls.h
View File

@ -216,7 +216,8 @@ void tor_tls_set_renegotiate_callback(tor_tls_t *tls,
void (*cb)(tor_tls_t *, void *arg),
void *arg);
int tor_tls_is_server(tor_tls_t *tls);
void tor_tls_free(tor_tls_t *tls);
void tor_tls_free_(tor_tls_t *tls);
#define tor_tls_free(tls) FREE_AND_NULL(tor_tls, (tls))
int tor_tls_peer_has_cert(tor_tls_t *tls);
MOCK_DECL(tor_x509_cert_t *,tor_tls_get_peer_cert,(tor_tls_t *tls));
MOCK_DECL(tor_x509_cert_t *,tor_tls_get_own_cert,(tor_tls_t *tls));
@ -263,7 +264,8 @@ void check_no_tls_errors_(const char *fname, int line);
void tor_tls_log_one_error(tor_tls_t *tls, unsigned long err,
int severity, int domain, const char *doing);
void tor_x509_cert_free(tor_x509_cert_t *cert);
void tor_x509_cert_free_(tor_x509_cert_t *cert);
#define tor_x509_cert_free(c) FREE_AND_NULL(tor_x509_cert, (c))
tor_x509_cert_t *tor_x509_cert_decode(const uint8_t *certificate,
size_t certificate_len);
void tor_x509_cert_get_der(const tor_x509_cert_t *cert,