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OpenSSL: Add tls_connection_get_cipher_suite()

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This can be used to fetch the 16-bit TLS cipher suite identifier.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2019-07-05 18:07:14 +03:00
parent 063d28ec83
commit 94714ec341
2 changed files with 18 additions and 0 deletions
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7
src/crypto/tls.h
View file

@ -659,4 +659,11 @@ void tls_connection_remove_session(struct tls_connection *conn);
*/
int tls_get_tls_unique(struct tls_connection *conn, u8 *buf, size_t max_len);
/**
* tls_connection_get_cipher_suite - Get current TLS cipher suite
* @conn: Connection context data from tls_connection_init()
* Returns: TLS cipher suite of the current connection or 0 on error
*/
u16 tls_connection_get_cipher_suite(struct tls_connection *conn);
#endif /* TLS_H */

11
src/crypto/tls_openssl.c
View file

@ -5354,3 +5354,14 @@ int tls_get_tls_unique(struct tls_connection *conn, u8 *buf, size_t max_len)
return len;
}
u16 tls_connection_get_cipher_suite(struct tls_connection *conn)
{
const SSL_CIPHER *cipher;
cipher = SSL_get_current_cipher(conn->ssl);
if (!cipher)
return 0;
return SSL_CIPHER_get_protocol_id(cipher);
}