# include <openssl/e_os2.h>
# include <openssl/opensslconf.h>
-
# include <openssl/comp.h>
# include <openssl/bio.h>
# if OPENSSL_API_COMPAT < 0x10100000L
# include <openssl/safestack.h>
# include <openssl/symhacks.h>
-# ifndef OPENSSL_NO_CT
-# include <openssl/ct.h>
-# endif
+# include <openssl/ct.h>
#ifdef __cplusplus
extern "C" {
# define SSL_MAX_KEY_ARG_LENGTH 8
# define SSL_MAX_MASTER_KEY_LENGTH 48
+/* The maximum number of encrypt/decrypt pipelines we can support */
+# define SSL_MAX_PIPELINES 32
+
/* text strings for the ciphers */
/* These are used to specify which ciphers to use and not to use */
# endif
-# if defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32)
-# define SSL_MAX_CERT_LIST_DEFAULT 1024*30
- /* 30k max cert list :-) */
-# else
-# define SSL_MAX_CERT_LIST_DEFAULT 1024*100
- /* 100k max cert list :-) */
-# endif
+/* 100k max cert list */
+# define SSL_MAX_CERT_LIST_DEFAULT 1024*100
# define SSL_SESSION_CACHE_MAX_SIZE_DEFAULT (1024*20)
# define OPENSSL_NPN_NO_OVERLAP 2
__owur int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos,
- unsigned protos_len);
+ unsigned int protos_len);
__owur int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos,
- unsigned protos_len);
+ unsigned int protos_len);
void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx,
int (*cb) (SSL *ssl,
const unsigned char **out,
unsigned int inlen,
void *arg), void *arg);
void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data,
- unsigned *len);
+ unsigned int *len);
# ifndef OPENSSL_NO_PSK
/*
# define SSL_CTRL_GET_EXTMS_SUPPORT 122
# define SSL_CTRL_SET_MIN_PROTO_VERSION 123
# define SSL_CTRL_SET_MAX_PROTO_VERSION 124
+# define SSL_CTRL_SET_SPLIT_SEND_FRAGMENT 125
+# define SSL_CTRL_SET_MAX_PIPELINES 126
# define SSL_CERT_SET_FIRST 1
# define SSL_CERT_SET_NEXT 2
# define SSL_CERT_SET_SERVER 3
SSL_ctrl(s, SSL_CTRL_SET_MAX_PROTO_VERSION, version, NULL)
-__owur BIO_METHOD *BIO_f_ssl(void);
+__owur const BIO_METHOD *BIO_f_ssl(void);
__owur BIO *BIO_new_ssl(SSL_CTX *ctx, int client);
__owur BIO *BIO_new_ssl_connect(SSL_CTX *ctx);
__owur BIO *BIO_new_buffer_ssl_connect(SSL_CTX *ctx);
__owur const SSL_CIPHER *SSL_get_current_cipher(const SSL *s);
__owur int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits);
-__owur char *SSL_CIPHER_get_version(const SSL_CIPHER *c);
+__owur const char *SSL_CIPHER_get_version(const SSL_CIPHER *c);
__owur const char *SSL_CIPHER_get_name(const SSL_CIPHER *c);
__owur uint32_t SSL_CIPHER_get_id(const SSL_CIPHER *c);
+__owur int SSL_CIPHER_get_kx_nid(const SSL_CIPHER *c);
+__owur int SSL_CIPHER_get_auth_nid(const SSL_CIPHER *c);
+__owur int SSL_CIPHER_is_aead(const SSL_CIPHER *c);
__owur int SSL_get_fd(const SSL *s);
__owur int SSL_get_rfd(const SSL *s);
__owur char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len);
__owur int SSL_get_read_ahead(const SSL *s);
__owur int SSL_pending(const SSL *s);
+__owur int SSL_has_pending(const SSL *s);
# ifndef OPENSSL_NO_SOCK
__owur int SSL_set_fd(SSL *s, int fd);
__owur int SSL_set_rfd(SSL *s, int fd);
# endif
int SSL_SESSION_print(BIO *fp, const SSL_SESSION *ses);
int SSL_SESSION_print_keylog(BIO *bp, const SSL_SESSION *x);
+int SSL_SESSION_up_ref(SSL_SESSION *ses);
void SSL_SESSION_free(SSL_SESSION *ses);
__owur int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp);
__owur int SSL_set_session(SSL *to, SSL_SESSION *session);
* Bridge opacity barrier between libcrypt and libssl, also needed to support
* offline testing in test/danetest.c
*/
-struct dane_st *SSL_get0_dane(SSL *ssl);
+SSL_DANE *SSL_get0_dane(SSL *ssl);
__owur int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm);
__owur int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm);
__owur int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth);
# ifndef OPENSSL_NO_SSL3_METHOD
-__owur const SSL_METHOD *SSLv3_method(void); /* SSLv3 */
-__owur const SSL_METHOD *SSLv3_server_method(void); /* SSLv3 */
-__owur const SSL_METHOD *SSLv3_client_method(void); /* SSLv3 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *SSLv3_method(void)) /* SSLv3 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *SSLv3_server_method(void)) /* SSLv3 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *SSLv3_client_method(void)) /* SSLv3 */
# endif
#define SSLv23_method TLS_method
__owur const SSL_METHOD *TLS_server_method(void);
__owur const SSL_METHOD *TLS_client_method(void);
-__owur const SSL_METHOD *TLSv1_method(void); /* TLSv1.0 */
-__owur const SSL_METHOD *TLSv1_server_method(void); /* TLSv1.0 */
-__owur const SSL_METHOD *TLSv1_client_method(void); /* TLSv1.0 */
+# ifndef OPENSSL_NO_TLS1_METHOD
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_method(void)) /* TLSv1.0 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_server_method(void)) /* TLSv1.0 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_client_method(void)) /* TLSv1.0 */
+# endif
-__owur const SSL_METHOD *TLSv1_1_method(void); /* TLSv1.1 */
-__owur const SSL_METHOD *TLSv1_1_server_method(void); /* TLSv1.1 */
-__owur const SSL_METHOD *TLSv1_1_client_method(void); /* TLSv1.1 */
+# ifndef OPENSSL_NO_TLS1_1_METHOD
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_method(void)) /* TLSv1.1 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_server_method(void)) /* TLSv1.1 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_1_client_method(void)) /* TLSv1.1 */
+# endif
-__owur const SSL_METHOD *TLSv1_2_method(void); /* TLSv1.2 */
-__owur const SSL_METHOD *TLSv1_2_server_method(void); /* TLSv1.2 */
-__owur const SSL_METHOD *TLSv1_2_client_method(void); /* TLSv1.2 */
+# ifndef OPENSSL_NO_TLS1_2_METHOD
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_method(void)) /* TLSv1.2 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_server_method(void)) /* TLSv1.2 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *TLSv1_2_client_method(void)) /* TLSv1.2 */
+# endif
-__owur const SSL_METHOD *DTLSv1_method(void); /* DTLSv1.0 */
-__owur const SSL_METHOD *DTLSv1_server_method(void); /* DTLSv1.0 */
-__owur const SSL_METHOD *DTLSv1_client_method(void); /* DTLSv1.0 */
+# ifndef OPENSSL_NO_DTLS1_METHOD
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_method(void)) /* DTLSv1.0 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_server_method(void)) /* DTLSv1.0 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_client_method(void)) /* DTLSv1.0 */
+# endif
-__owur const SSL_METHOD *DTLSv1_2_method(void); /* DTLSv1.2 */
-__owur const SSL_METHOD *DTLSv1_2_server_method(void); /* DTLSv1.2 */
-__owur const SSL_METHOD *DTLSv1_2_client_method(void); /* DTLSv1.2 */
+# ifndef OPENSSL_NO_DTLS1_2_METHOD
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_2_method(void)) /* DTLSv1.2 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_2_server_method(void)) /* DTLSv1.2 */
+DEPRECATEDIN_1_1_0(__owur const SSL_METHOD *DTLSv1_2_client_method(void)) /* DTLSv1.2 */
+#endif
__owur const SSL_METHOD *DTLS_method(void); /* DTLS 1.0 and 1.2 */
__owur const SSL_METHOD *DTLS_server_method(void); /* DTLS 1.0 and 1.2 */
__owur const SSL_METHOD *DTLS_client_method(void); /* DTLS 1.0 and 1.2 */
__owur STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s);
+__owur STACK_OF(SSL_CIPHER) *SSL_CTX_get_ciphers(const SSL_CTX *ctx);
__owur STACK_OF(SSL_CIPHER) *SSL_get_client_ciphers(const SSL *s);
__owur STACK_OF(SSL_CIPHER) *SSL_get1_supported_ciphers(SSL *s);
unsigned char *out, size_t outlen);
#define SSL_get_ex_new_index(l, p, newf, dupf, freef) \
- CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_SESSION, l, p, newf, dupf, freef)
+ CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, l, p, newf, dupf, freef)
__owur int SSL_set_ex_data(SSL *ssl, int idx, void *data);
void *SSL_get_ex_data(const SSL *ssl, int idx);
#define SSL_SESSION_get_ex_new_index(l, p, newf, dupf, freef) \
- CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, l, p, newf, dupf, freef)
+ CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_SESSION, l, p, newf, dupf, freef)
__owur int SSL_SESSION_set_ex_data(SSL_SESSION *ss, int idx, void *data);
void *SSL_SESSION_get_ex_data(const SSL_SESSION *ss, int idx);
#define SSL_CTX_get_ex_new_index(l, p, newf, dupf, freef) \
- CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, l, p, newf, dupf, freef)
+ CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, l, p, newf, dupf, freef)
__owur int SSL_CTX_set_ex_data(SSL_CTX *ssl, int idx, void *data);
void *SSL_CTX_get_ex_data(const SSL_CTX *ssl, int idx);
SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_SEND_FRAGMENT,m,NULL)
# define SSL_set_max_send_fragment(ssl,m) \
SSL_ctrl(ssl,SSL_CTRL_SET_MAX_SEND_FRAGMENT,m,NULL)
+# define SSL_CTX_set_split_send_fragment(ctx,m) \
+ SSL_CTX_ctrl(ctx,SSL_CTRL_SET_SPLIT_SEND_FRAGMENT,m,NULL)
+# define SSL_set_split_send_fragment(ssl,m) \
+ SSL_ctrl(ssl,SSL_CTRL_SET_SPLIT_SEND_FRAGMENT,m,NULL)
+# define SSL_CTX_set_max_pipelines(ctx,m) \
+ SSL_CTX_ctrl(ctx,SSL_CTRL_SET_MAX_PIPELINES,m,NULL)
+# define SSL_set_max_pipelines(ssl,m) \
+ SSL_ctrl(ssl,SSL_CTRL_SET_MAX_PIPELINES,m,NULL)
+
+void SSL_CTX_set_default_read_buffer_len(SSL_CTX *ctx, size_t len);
+void SSL_set_default_read_buffer_len(SSL *s, size_t len);
/* NB: the keylength is only applicable when is_export is true */
# ifndef OPENSSL_NO_DH
STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void);
__owur STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP)
*meths);
-void SSL_COMP_free_compression_methods(void);
+#if OPENSSL_API_COMPAT < 0x10100000L
+# define SSL_COMP_free_compression_methods()
+#endif
__owur int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm);
const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr);
__owur const char *SSL_CIPHER_standard_name(const SSL_CIPHER *c);
# endif
+# ifndef OPENSSL_NO_SOCK
int DTLSv1_listen(SSL *s, BIO_ADDR *client);
+# endif
# ifndef OPENSSL_NO_CT
+/*
+ * A callback for verifying that the received SCTs are sufficient.
+ * Expected to return 1 if they are sufficient, otherwise 0.
+ * May return a negative integer if an error occurs.
+ * A connection should be aborted if the SCTs are deemed insufficient.
+ */
+typedef int(*ssl_ct_validation_cb)(const CT_POLICY_EVAL_CTX *ctx,
+ const STACK_OF(SCT) *scts, void *arg);
+
/*
* Sets a |callback| that is invoked upon receipt of ServerHelloDone to validate
* the received SCTs.
* NOTE: A side-effect of setting a CT callback is that an OCSP stapled response
* will be requested.
*/
-__owur int SSL_set_ct_validation_callback(SSL *s,
- ct_validation_cb callback,
- void *arg);
-__owur int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
- ct_validation_cb callback,
- void *arg);
+int SSL_set_ct_validation_callback(SSL *s, ssl_ct_validation_cb callback,
+ void *arg);
+int SSL_CTX_set_ct_validation_callback(SSL_CTX *ctx,
+ ssl_ct_validation_cb callback,
+ void *arg);
+#define SSL_disable_ct(s) \
+ ((void) SSL_set_validation_callback((s), NULL, NULL))
+#define SSL_CTX_disable_ct(ctx) \
+ ((void) SSL_CTX_set_validation_callback((ctx), NULL, NULL))
+
+/*
+ * The validation type enumerates the available behaviours of the built-in SSL
+ * CT validation callback selected via SSL_enable_ct() and SSL_CTX_enable_ct().
+ * The underlying callback is a static function in libssl.
+ */
+enum {
+ SSL_CT_VALIDATION_PERMISSIVE = 0,
+ SSL_CT_VALIDATION_STRICT
+};
+
/*
- * Gets the callback being used to validate SCTs.
- * This will return NULL if SCTs are neither being requested nor validated.
+ * Enable CT by setting up a callback that implements one of the built-in
+ * validation variants. The SSL_CT_VALIDATION_PERMISSIVE variant always
+ * continues the handshake, the application can make appropriate decisions at
+ * handshake completion. The SSL_CT_VALIDATION_STRICT variant requires at
+ * least one valid SCT, or else handshake termination will be requested. The
+ * handshake may continue anyway if SSL_VERIFY_NONE is in effect.
*/
-__owur ct_validation_cb SSL_get_ct_validation_callback(const SSL *s);
-__owur ct_validation_cb SSL_CTX_get_ct_validation_callback(const SSL_CTX *ctx);
+int SSL_enable_ct(SSL *s, int validation_mode);
+int SSL_CTX_enable_ct(SSL_CTX *ctx, int validation_mode);
+
+/*
+ * Report whether a non-NULL callback is enabled.
+ */
+int SSL_ct_is_enabled(const SSL *s);
+int SSL_CTX_ct_is_enabled(const SSL_CTX *ctx);
/* Gets the SCTs received from a connection */
const STACK_OF(SCT) *SSL_get0_peer_scts(SSL *s);
-/* Load the CT log list from the default location */
+/*
+ * Loads the CT log list from the default location.
+ * If a CTLOG_STORE has previously been set using SSL_CTX_set_ctlog_store,
+ * the log information loaded from this file will be appended to the
+ * CTLOG_STORE.
+ * Returns 1 on success, 0 otherwise.
+ */
int SSL_CTX_set_default_ctlog_list_file(SSL_CTX *ctx);
-/* Load the CT log list from the specified file path */
+
+/*
+ * Loads the CT log list from the specified file path.
+ * If a CTLOG_STORE has previously been set using SSL_CTX_set_ctlog_store,
+ * the log information loaded from this file will be appended to the
+ * CTLOG_STORE.
+ * Returns 1 on success, 0 otherwise.
+ */
int SSL_CTX_set_ctlog_list_file(SSL_CTX *ctx, const char *path);
+/*
+ * Sets the CT log list used by all SSL connections created from this SSL_CTX.
+ * Ownership of the CTLOG_STORE is transferred to the SSL_CTX.
+ */
+void SSL_CTX_set0_ctlog_store(SSL_CTX *ctx, CTLOG_STORE *logs);
+
+/*
+ * Gets the CT log list used by all SSL connections created from this SSL_CTX.
+ * This will be NULL unless one of the following functions has been called:
+ * - SSL_CTX_set_default_ctlog_list_file
+ * - SSL_CTX_set_ctlog_list_file
+ * - SSL_CTX_set_ctlog_store
+ */
+const CTLOG_STORE *SSL_CTX_get0_ctlog_store(const SSL_CTX *ctx);
+
# endif /* OPENSSL_NO_CT */
/* What the "other" parameter contains in security callback */
void SSL_set_security_level(SSL *s, int level);
__owur int SSL_get_security_level(const SSL *s);
void SSL_set_security_callback(SSL *s,
- int (*cb) (SSL *s, SSL_CTX *ctx, int op,
+ int (*cb) (const SSL *s, const SSL_CTX *ctx, int op,
int bits, int nid, void *other,
void *ex));
-int (*SSL_get_security_callback(const SSL *s)) (SSL *s, SSL_CTX *ctx, int op,
+int (*SSL_get_security_callback(const SSL *s)) (const SSL *s, const SSL_CTX *ctx, int op,
int bits, int nid,
void *other, void *ex);
void SSL_set0_security_ex_data(SSL *s, void *ex);
void SSL_CTX_set_security_level(SSL_CTX *ctx, int level);
__owur int SSL_CTX_get_security_level(const SSL_CTX *ctx);
void SSL_CTX_set_security_callback(SSL_CTX *ctx,
- int (*cb) (SSL *s, SSL_CTX *ctx, int op,
+ int (*cb) (const SSL *s, const SSL_CTX *ctx, int op,
int bits, int nid, void *other,
void *ex));
-int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (SSL *s,
- SSL_CTX *ctx,
+int (*SSL_CTX_get_security_callback(const SSL_CTX *ctx)) (const SSL *s,
+ const SSL_CTX *ctx,
int op, int bits,
int nid,
void *other,
/* Function codes. */
# define SSL_F_CHECK_SUITEB_CIPHER_LIST 331
# define SSL_F_CT_MOVE_SCTS 345
+# define SSL_F_CT_STRICT 349
# define SSL_F_D2I_SSL_SESSION 103
# define SSL_F_DANE_CTX_ENABLE 347
# define SSL_F_DANE_MTYPE_SET 393
# define SSL_F_SSL_CREATE_CIPHER_LIST 166
# define SSL_F_SSL_CTRL 232
# define SSL_F_SSL_CTX_CHECK_PRIVATE_KEY 168
-# define SSL_F_SSL_CTX_GET_CT_VALIDATION_CALLBACK 349
+# define SSL_F_SSL_CTX_ENABLE_CT 398
# define SSL_F_SSL_CTX_MAKE_PROFILES 309
# define SSL_F_SSL_CTX_NEW 169
# define SSL_F_SSL_CTX_SET_ALPN_PROTOS 343
# define SSL_F_SSL_DANE_ENABLE 395
# define SSL_F_SSL_DO_CONFIG 391
# define SSL_F_SSL_DO_HANDSHAKE 180
+# define SSL_F_SSL_ENABLE_CT 402
# define SSL_F_SSL_GET0_PEER_SCTS 397
-# define SSL_F_SSL_GET_CT_VALIDATION_CALLBACK 398
# define SSL_F_SSL_GET_NEW_SESSION 181
# define SSL_F_SSL_GET_PREV_SESSION 217
# define SSL_F_SSL_GET_SERVER_CERT_INDEX 322
# define SSL_F_TLS1_CHANGE_CIPHER_STATE 209
# define SSL_F_TLS1_CHECK_DUPLICATE_EXTENSIONS 341
# define SSL_F_TLS1_CHECK_SERVERHELLO_TLSEXT 274
+# define SSL_F_TLS1_ENC 401
# define SSL_F_TLS1_EXPORT_KEYING_MATERIAL 314
# define SSL_F_TLS1_GET_CURVELIST 338
# define SSL_F_TLS1_PREPARE_CLIENTHELLO_TLSEXT 275
# define SSL_R_INVALID_COMMAND 280
# define SSL_R_INVALID_COMPRESSION_ALGORITHM 341
# define SSL_R_INVALID_CONFIGURATION_NAME 113
+# define SSL_R_INVALID_CT_VALIDATION_TYPE 212
# define SSL_R_INVALID_NULL_CMD_NAME 385
# define SSL_R_INVALID_PURPOSE 278
# define SSL_R_INVALID_SEQUENCE_NUMBER 402
# define SSL_R_NO_SHARED_CIPHER 193
# define SSL_R_NO_SHARED_SIGATURE_ALGORITHMS 376
# define SSL_R_NO_SRTP_PROFILES 359
+# define SSL_R_NO_VALID_SCTS 216
# define SSL_R_NO_VERIFY_CALLBACK 194
# define SSL_R_NO_VERIFY_COOKIE_CALLBACK 403
# define SSL_R_NULL_SSL_CTX 195
# define SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE 199
# define SSL_R_PEM_NAME_BAD_PREFIX 391
# define SSL_R_PEM_NAME_TOO_SHORT 392
+# define SSL_R_PIPELINE_FAILURE 406
# define SSL_R_PRE_MAC_LENGTH_TOO_LONG 205
# define SSL_R_PROTOCOL_IS_SHUTDOWN 207
# define SSL_R_PSK_IDENTITY_NOT_FOUND 223
# define SSL_R_SSL_SESSION_ID_CONFLICT 302
# define SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG 273
# define SSL_R_SSL_SESSION_ID_HAS_BAD_LENGTH 303
+# define SSL_R_SSL_SESSION_VERSION_MISMATCH 210
# define SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER 232
# define SSL_R_TLS_HEARTBEAT_PEER_DOESNT_ACCEPT 365
# define SSL_R_TLS_HEARTBEAT_PENDING 366
projects / openssl.git / blobdiff