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session: add getter for kexalgo

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Signed-off-by: Jon Simons <jon@jonsimons.org>
Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Jon Simons
2014-10-15 21:24:23 -07:00
committed by Andreas Schneider
parent 4745d652b5
commit 6895d0b727
2 changed files with 30 additions and 0 deletions
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1
include/libssh/libssh.h
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@@ -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);

29
src/session.c
View File

@@ -314,6 +314,35 @@ const char* ssh_get_serverbanner(ssh_session session) {
return session->serverbanner;
}
/**
* @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.
*