diff options
| -rw-r--r-- | include/libssh/libssh.h | 1 | ||||
| -rw-r--r-- | src/session.c | 29 |
2 files changed, 30 insertions, 0 deletions
diff --git a/include/libssh/libssh.h b/include/libssh/libssh.h index ba4f5f44..f4e4fe93 100644 --- a/include/libssh/libssh.h +++ b/include/libssh/libssh.h @@ -658,6 +658,7 @@ LIBSSH_API int ssh_event_remove_session(ssh_event event, ssh_session session); LIBSSH_API void ssh_event_free(ssh_event event); LIBSSH_API const char* ssh_get_clientbanner(ssh_session session); LIBSSH_API const char* ssh_get_serverbanner(ssh_session session); +LIBSSH_API const char* ssh_get_kex_algo(ssh_session session); LIBSSH_API const char* ssh_get_cipher_in(ssh_session session); LIBSSH_API const char* ssh_get_cipher_out(ssh_session session); LIBSSH_API const char* ssh_get_hmac_in(ssh_session session); diff --git a/src/session.c b/src/session.c index a3b19ede..90206d42 100644 --- a/src/session.c +++ b/src/session.c @@ -315,6 +315,35 @@ const char* ssh_get_serverbanner(ssh_session session) { } /** + * @brief get the name of the current key exchange algorithm. + * + * @param[in] session The SSH session + * + * @return Returns the key exchange algorithm string or NULL. + */ +const char* ssh_get_kex_algo(ssh_session session) { + if ((session == NULL) || + (session->current_crypto == NULL)) { + return NULL; + } + + switch (session->current_crypto->kex_type) { + case SSH_KEX_DH_GROUP1_SHA1: + return "diffie-hellman-group1-sha1"; + case SSH_KEX_DH_GROUP14_SHA1: + return "diffie-hellman-group14-sha1"; + case SSH_KEX_ECDH_SHA2_NISTP256: + return "ecdh-sha2-nistp256"; + case SSH_KEX_CURVE25519_SHA256_LIBSSH_ORG: + return "curve25519-sha256@libssh.org"; + default: + break; + } + + return NULL; +} + +/** * @brief get the name of the input cipher for the given session. * * @param[in] session The SSH session. |