+static av_cold int libssh_authentication(LIBSSHContext *libssh, const char *user, const char *password)
+{
+ int authorized = 0;
+ int auth_methods;
+
+ if (user)
+ ssh_options_set(libssh->session, SSH_OPTIONS_USER, user);
+
+ auth_methods = ssh_userauth_list(libssh->session, NULL);
+
+ if (auth_methods & SSH_AUTH_METHOD_PUBLICKEY) {
+ if (libssh->priv_key) {
+ ssh_string pub_key;
+ ssh_private_key priv_key;
+ int type;
+ if (!ssh_try_publickey_from_file(libssh->session, libssh->priv_key, &pub_key, &type)) {
+ priv_key = privatekey_from_file(libssh->session, libssh->priv_key, type, password);
+ if (ssh_userauth_pubkey(libssh->session, NULL, pub_key, priv_key) == SSH_AUTH_SUCCESS) {
+ av_log(libssh, AV_LOG_DEBUG, "Authentication successful with selected private key.\n");
+ authorized = 1;
+ }
+ } else {
+ av_log(libssh, AV_LOG_DEBUG, "Invalid key is provided.\n");
+ return AVERROR(EACCES);
+ }
+ } else if (ssh_userauth_autopubkey(libssh->session, password) == SSH_AUTH_SUCCESS) {
+ av_log(libssh, AV_LOG_DEBUG, "Authentication successful with auto selected key.\n");
+ authorized = 1;
+ }
+ }
+
+ if (!authorized && (auth_methods & SSH_AUTH_METHOD_PASSWORD)) {
+ if (ssh_userauth_password(libssh->session, NULL, password) == SSH_AUTH_SUCCESS) {
+ av_log(libssh, AV_LOG_DEBUG, "Authentication successful with password.\n");
+ authorized = 1;
+ }
+ }
+
+ if (!authorized) {
+ av_log(libssh, AV_LOG_ERROR, "Authentication failed.\n");
+ return AVERROR(EACCES);
+ }
+
+ return 0;
+}
+