Merge branch 'testing-common-ssh'
This commit is contained in:
commit
615921108a
@ -707,8 +707,5 @@ void guac_common_ssh_destroy_sftp_filesystem(guac_object* filesystem) {
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/* Clean up the SFTP filesystem object */
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guac_client_free_object(sftp_data->ssh_session->client, filesystem);
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/* Disconnect SSH session corresponding to the SFTP session */
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guac_common_ssh_destroy_session(sftp_data->ssh_session);
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}
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@ -110,7 +110,8 @@ guac_object* guac_common_ssh_create_sftp_filesystem(
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/**
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* Destroys the given filesystem object, disconnecting from SFTP and freeing
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* and associated resources.
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* and associated resources. Any associated session or user objects must be
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* explicitly destroyed.
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*
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* @param object
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* The filesystem object to destroy.
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@ -297,6 +297,13 @@ static int guac_common_ssh_authenticate(guac_common_ssh_session* common_session)
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char* password = user->password;
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guac_common_ssh_key* key = user->private_key;
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/* Validate username provided */
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if (username == NULL) {
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guac_client_abort(client, GUAC_PROTOCOL_STATUS_CLIENT_UNAUTHORIZED,
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"SSH authentication requires a username.");
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return 1;
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}
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/* Get list of supported authentication methods */
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char* user_authlist = libssh2_userauth_list(session, username,
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strlen(username));
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@ -309,7 +316,8 @@ static int guac_common_ssh_authenticate(guac_common_ssh_session* common_session)
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/* Check if public key auth is supported on the server */
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if (strstr(user_authlist, "publickey") == NULL) {
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guac_client_abort(client, GUAC_PROTOCOL_STATUS_CLIENT_UNAUTHORIZED,
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"Public key authentication not supported");
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"Public key authentication is not supported by "
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"the SSH server");
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return 1;
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}
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@ -333,24 +341,35 @@ static int guac_common_ssh_authenticate(guac_common_ssh_session* common_session)
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}
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/* Authenticate with password */
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if (strstr(user_authlist, "password") != NULL) {
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guac_client_log(client, GUAC_LOG_DEBUG,
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"Using password authentication method");
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return libssh2_userauth_password(session, username, password);
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/* Authenticate with password, if provided */
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else if (password != NULL) {
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/* Authenticate with password */
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if (strstr(user_authlist, "password") != NULL) {
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guac_client_log(client, GUAC_LOG_DEBUG,
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"Using password authentication method");
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return libssh2_userauth_password(session, username, password);
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}
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/* Authenticate with password via keyboard-interactive auth */
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if (strstr(user_authlist, "keyboard-interactive") != NULL) {
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guac_client_log(client, GUAC_LOG_DEBUG,
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"Using keyboard-interactive authentication method");
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return libssh2_userauth_keyboard_interactive(session, username,
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&guac_common_ssh_kbd_callback);
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}
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/* No known authentication types available */
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guac_client_abort(client, GUAC_PROTOCOL_STATUS_CLIENT_UNAUTHORIZED,
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"Password and keyboard-interactive authentication are not "
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"supported by the SSH server");
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return 1;
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}
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/* Authenticate with password via keyboard-interactive auth */
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if (strstr(user_authlist, "keyboard-interactive") != NULL) {
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guac_client_log(client, GUAC_LOG_DEBUG,
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"Using keyboard-interactive authentication method");
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return libssh2_userauth_keyboard_interactive(session, username,
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&guac_common_ssh_kbd_callback);
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}
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/* No known authentication types available */
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guac_client_abort(client, GUAC_PROTOCOL_STATUS_CLIENT_BAD_TYPE,
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"No known authentication methods");
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/* No credentials provided */
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guac_client_abort(client, GUAC_PROTOCOL_STATUS_CLIENT_UNAUTHORIZED,
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"SSH authentication requires either a private key or a password.");
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return 1;
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}
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@ -485,10 +504,6 @@ void guac_common_ssh_destroy_session(guac_common_ssh_session* session) {
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libssh2_session_disconnect(session->session, "Bye");
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libssh2_session_free(session->session);
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/* Destroy associated user */
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if (session->user)
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guac_common_ssh_destroy_user(session->user);
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/* Free all other data */
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free(session);
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@ -80,6 +80,9 @@ void guac_common_ssh_uninit();
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* Connects to the SSH server running at the given hostname and port, and
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* authenticates as the given user. If an error occurs while connecting or
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* authenticating, the Guacamole client will automatically and fatally abort.
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* The user object provided must eventually be explicitly destroyed, but should
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* not be destroyed until this session is destroyed, assuming the session is
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* successfully created.
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*
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* @param client
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* The Guacamole client that will be using SSH.
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@ -91,8 +94,7 @@ void guac_common_ssh_uninit();
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* The port to connect to on the given hostname.
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*
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* @param user
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* The user to authenticate as, once connected. This user will be
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* automatically destroyed when this session is destroyed.
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* The user to authenticate as, once connected.
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*
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* @return
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* A new SSH session if the connection and authentication succeed, or NULL
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@ -103,7 +105,8 @@ guac_common_ssh_session* guac_common_ssh_create_session(guac_client* client,
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/**
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* Disconnects and destroys the given SSH session, freeing all associated
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* resources.
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* resources. Any associated user must be explicitly destroyed, and will not
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* be destroyed automatically.
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*
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* @param session
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* The SSH session to destroy.
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@ -831,7 +831,8 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
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if (sftp_username[0] == '\0' && settings->username != NULL)
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sftp_username = settings->username;
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guac_common_ssh_user* user = guac_common_ssh_create_user(sftp_username);
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guac_client_data->sftp_user =
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guac_common_ssh_create_user(sftp_username);
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/* Import private key, if given */
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if (argv[IDX_SFTP_PRIVATE_KEY][0] != '\0') {
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@ -840,10 +841,10 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
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"Authenticating with private key.");
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/* Abort if private key cannot be read */
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if (guac_common_ssh_user_import_key(user,
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if (guac_common_ssh_user_import_key(guac_client_data->sftp_user,
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argv[IDX_SFTP_PRIVATE_KEY],
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argv[IDX_SFTP_PASSPHRASE])) {
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guac_common_ssh_destroy_user(user);
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guac_common_ssh_destroy_user(guac_client_data->sftp_user);
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return 1;
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}
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@ -856,11 +857,12 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
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"Authenticating with password.");
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/* Parse password - use RDP password by default */
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const char* sftp_password = argv[IDX_SFTP_USERNAME];
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const char* sftp_password = argv[IDX_SFTP_PASSWORD];
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if (sftp_password[0] == '\0' && settings->password != NULL)
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sftp_password = settings->password;
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guac_common_ssh_user_set_password(user, sftp_password);
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guac_common_ssh_user_set_password(guac_client_data->sftp_user,
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sftp_password);
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}
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@ -875,24 +877,28 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
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sftp_port = "22";
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/* Attempt SSH connection */
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guac_common_ssh_session* session =
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guac_client_data->sftp_session =
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guac_common_ssh_create_session(client, sftp_hostname, sftp_port,
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user);
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guac_client_data->sftp_user);
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/* Fail if SSH connection does not succeed */
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if (session == NULL) {
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if (guac_client_data->sftp_session == NULL) {
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/* Already aborted within guac_common_ssh_create_session() */
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guac_common_ssh_destroy_user(user);
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guac_common_ssh_destroy_user(guac_client_data->sftp_user);
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return 1;
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}
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/* Load and expose filesystem */
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guac_client_data->sftp_filesystem =
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guac_common_ssh_create_sftp_filesystem(session, "/");
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guac_common_ssh_create_sftp_filesystem(
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guac_client_data->sftp_session, "/");
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/* Abort if SFTP connection fails */
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if (guac_client_data->sftp_filesystem == NULL)
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if (guac_client_data->sftp_filesystem == NULL) {
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guac_common_ssh_destroy_session(guac_client_data->sftp_session);
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guac_common_ssh_destroy_user(guac_client_data->sftp_user);
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return 1;
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}
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/* Use SFTP for basic uploads, if drive not enabled */
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if (!settings->drive_enabled)
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@ -35,6 +35,8 @@
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#ifdef ENABLE_COMMON_SSH
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#include "guac_sftp.h"
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#include "guac_ssh.h"
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#include "guac_ssh_user.h"
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#endif
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#ifdef HAVE_FREERDP_DISPLAY_UPDATE_SUPPORT
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@ -162,6 +164,16 @@ typedef struct rdp_guac_client_data {
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guac_rdp_fs* filesystem;
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#ifdef ENABLE_COMMON_SSH
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/**
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* The user and credentials used to authenticate for SFTP.
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*/
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guac_common_ssh_user* sftp_user;
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/**
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* The SSH session used for SFTP.
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*/
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guac_common_ssh_session* sftp_session;
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/**
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* The exposed filesystem object, implemented with SFTP.
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*/
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@ -36,6 +36,7 @@
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#ifdef ENABLE_COMMON_SSH
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#include <guac_sftp.h>
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#include <guac_ssh.h>
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#include <guac_ssh_user.h>
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#endif
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#include <freerdp/cache/cache.h>
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@ -99,6 +100,14 @@ int rdp_guac_client_free_handler(guac_client* client) {
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if (guac_client_data->sftp_filesystem)
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guac_common_ssh_destroy_sftp_filesystem(guac_client_data->sftp_filesystem);
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/* Free SFTP session */
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if (guac_client_data->sftp_session)
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guac_common_ssh_destroy_session(guac_client_data->sftp_session);
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/* Free SFTP user */
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if (guac_client_data->sftp_user)
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guac_common_ssh_destroy_user(guac_client_data->sftp_user);
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guac_common_ssh_uninit();
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#endif
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@ -120,11 +120,10 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
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guac_socket* socket = client->socket;
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ssh_guac_client_data* client_data = malloc(sizeof(ssh_guac_client_data));
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ssh_guac_client_data* client_data = calloc(1, sizeof(ssh_guac_client_data));
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/* Init client data */
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client->data = client_data;
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client_data->term_channel = NULL;
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if (argc != SSH_ARGS_COUNT) {
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guac_client_abort(client, GUAC_PROTOCOL_STATUS_SERVER_ERROR, "Wrong number of arguments");
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@ -159,7 +158,6 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
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/* Parse SFTP enable */
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client_data->enable_sftp = strcmp(argv[IDX_ENABLE_SFTP], "true") == 0;
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client_data->sftp_filesystem = NULL;
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#ifdef ENABLE_SSH_AGENT
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client_data->enable_agent = strcmp(argv[IDX_ENABLE_AGENT], "true") == 0;
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@ -27,6 +27,7 @@
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#include "config.h"
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#include "guac_ssh.h"
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#include "guac_ssh_user.h"
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#include "sftp.h"
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#include "terminal.h"
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@ -109,11 +110,21 @@ typedef struct ssh_guac_client_data {
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*/
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pthread_t client_thread;
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/**
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* The user and credentials to use for all SSH sessions.
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*/
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guac_common_ssh_user* user;
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/**
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* SSH session, used by the SSH client thread.
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*/
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guac_common_ssh_session* session;
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/**
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* SFTP session, used by the SFTP client/filesystem.
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*/
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guac_common_ssh_session* sftp_session;
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/**
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* The filesystem object exposed for the SFTP session.
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*/
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@ -102,14 +102,20 @@ int ssh_guac_client_free_handler(guac_client* client) {
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/* Free channels */
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libssh2_channel_free(guac_client_data->term_channel);
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/* Clean up the SFTP filesystem object */
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if (guac_client_data->sftp_filesystem)
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/* Clean up the SFTP filesystem object and session */
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if (guac_client_data->sftp_filesystem) {
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guac_common_ssh_destroy_sftp_filesystem(guac_client_data->sftp_filesystem);
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guac_common_ssh_destroy_session(guac_client_data->sftp_session);
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}
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/* Free session */
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if (guac_client_data->session != NULL)
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guac_common_ssh_destroy_session(guac_client_data->session);
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/* Free user */
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if (guac_client_data->user != NULL)
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guac_common_ssh_destroy_user(guac_client_data->user);
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/* Free generic data struct */
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free(client->data);
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@ -130,12 +130,16 @@ static guac_common_ssh_user* guac_ssh_get_user(guac_client* client) {
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} /* end if key given */
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/* Otherwise, get password if not provided */
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else if (client_data->password[0] == 0) {
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/* Otherwise, use password */
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else {
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guac_terminal_prompt(client_data->term, "Password: ",
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client_data->password, sizeof(client_data->password), false);
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/* Get password if not provided */
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if (client_data->password[0] == 0)
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guac_terminal_prompt(client_data->term, "Password: ",
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client_data->password, sizeof(client_data->password),
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false);
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/* Set provided password */
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guac_common_ssh_user_set_password(user, client_data->password);
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}
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@ -181,7 +185,7 @@ void* ssh_client_thread(void* data) {
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return NULL;
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/* Get user and credentials */
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guac_common_ssh_user* user = guac_ssh_get_user(client);
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client_data->user = guac_ssh_get_user(client);
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/* Send new name */
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char name[1024];
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@ -191,7 +195,7 @@ void* ssh_client_thread(void* data) {
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/* Open SSH session */
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client_data->session = guac_common_ssh_create_session(client,
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client_data->hostname, client_data->port, user);
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client_data->hostname, client_data->port, client_data->user);
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if (client_data->session == NULL) {
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/* Already aborted within guac_common_ssh_create_session() */
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return NULL;
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@ -229,17 +233,18 @@ void* ssh_client_thread(void* data) {
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/* Create SSH session specific for SFTP */
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guac_client_log(client, GUAC_LOG_DEBUG, "Reconnecting for SFTP...");
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guac_common_ssh_session* sftp_ssh_session =
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client_data->sftp_session =
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guac_common_ssh_create_session(client, client_data->hostname,
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client_data->port, user);
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if (sftp_ssh_session == NULL) {
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client_data->port, client_data->user);
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if (client_data->sftp_session == NULL) {
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/* Already aborted within guac_common_ssh_create_session() */
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return NULL;
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}
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/* Request SFTP */
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client_data->sftp_filesystem =
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guac_common_ssh_create_sftp_filesystem(sftp_ssh_session, "/");
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guac_common_ssh_create_sftp_filesystem(
|
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client_data->sftp_session, "/");
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/* Set generic (non-filesystem) file upload handler */
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client->file_handler = guac_sftp_file_handler;
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|
@ -372,7 +372,7 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
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guac_client_log(client, GUAC_LOG_DEBUG,
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"Connecting via SSH for SFTP filesystem access.");
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guac_common_ssh_user* user =
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guac_client_data->sftp_user =
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guac_common_ssh_create_user(argv[IDX_SFTP_USERNAME]);
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/* Import private key, if given */
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@ -382,10 +382,10 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
|
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"Authenticating with private key.");
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|
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/* Abort if private key cannot be read */
|
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if (guac_common_ssh_user_import_key(user,
|
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if (guac_common_ssh_user_import_key(guac_client_data->sftp_user,
|
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argv[IDX_SFTP_PRIVATE_KEY],
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argv[IDX_SFTP_PASSPHRASE])) {
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guac_common_ssh_destroy_user(user);
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guac_common_ssh_destroy_user(guac_client_data->sftp_user);
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return 1;
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}
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@ -395,7 +395,8 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
|
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else {
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guac_client_log(client, GUAC_LOG_DEBUG,
|
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"Authenticating with password.");
|
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guac_common_ssh_user_set_password(user, argv[IDX_SFTP_PASSWORD]);
|
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guac_common_ssh_user_set_password(guac_client_data->sftp_user,
|
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argv[IDX_SFTP_PASSWORD]);
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}
|
||||
|
||||
/* Parse hostname - use VNC hostname by default */
|
||||
@ -409,24 +410,28 @@ int guac_client_init(guac_client* client, int argc, char** argv) {
|
||||
sftp_port = "22";
|
||||
|
||||
/* Attempt SSH connection */
|
||||
guac_common_ssh_session* session =
|
||||
guac_client_data->sftp_session =
|
||||
guac_common_ssh_create_session(client, sftp_hostname, sftp_port,
|
||||
user);
|
||||
guac_client_data->sftp_user);
|
||||
|
||||
/* Fail if SSH connection does not succeed */
|
||||
if (session == NULL) {
|
||||
if (guac_client_data->sftp_session == NULL) {
|
||||
/* Already aborted within guac_common_ssh_create_session() */
|
||||
guac_common_ssh_destroy_user(user);
|
||||
guac_common_ssh_destroy_user(guac_client_data->sftp_user);
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Load and expose filesystem */
|
||||
guac_client_data->sftp_filesystem =
|
||||
guac_common_ssh_create_sftp_filesystem(session, "/");
|
||||
guac_common_ssh_create_sftp_filesystem(
|
||||
guac_client_data->sftp_session, "/");
|
||||
|
||||
/* Abort if SFTP connection fails */
|
||||
if (guac_client_data->sftp_filesystem == NULL)
|
||||
if (guac_client_data->sftp_filesystem == NULL) {
|
||||
guac_common_ssh_destroy_session(guac_client_data->sftp_session);
|
||||
guac_common_ssh_destroy_user(guac_client_data->sftp_user);
|
||||
return 1;
|
||||
}
|
||||
|
||||
/* Set file handler for basic uploads */
|
||||
client->file_handler = guac_vnc_sftp_file_handler;
|
||||
|
@ -38,6 +38,8 @@
|
||||
|
||||
#ifdef ENABLE_COMMON_SSH
|
||||
#include "guac_sftp.h"
|
||||
#include "guac_ssh.h"
|
||||
#include "guac_ssh_user.h"
|
||||
#endif
|
||||
|
||||
/**
|
||||
@ -191,6 +193,16 @@ typedef struct vnc_guac_client_data {
|
||||
guac_common_surface* default_surface;
|
||||
|
||||
#ifdef ENABLE_COMMON_SSH
|
||||
/**
|
||||
* The user and credentials used to authenticate for SFTP.
|
||||
*/
|
||||
guac_common_ssh_user* sftp_user;
|
||||
|
||||
/**
|
||||
* The SSH session used for SFTP.
|
||||
*/
|
||||
guac_common_ssh_session* sftp_session;
|
||||
|
||||
/**
|
||||
* The exposed filesystem object, implemented with SFTP.
|
||||
*/
|
||||
|
@ -34,6 +34,7 @@
|
||||
#ifdef ENABLE_COMMON_SSH
|
||||
#include <guac_sftp.h>
|
||||
#include <guac_ssh.h>
|
||||
#include <guac_ssh_user.h>
|
||||
#endif
|
||||
|
||||
#ifdef ENABLE_PULSE
|
||||
@ -145,6 +146,14 @@ int vnc_guac_client_free_handler(guac_client* client) {
|
||||
if (guac_client_data->sftp_filesystem)
|
||||
guac_common_ssh_destroy_sftp_filesystem(guac_client_data->sftp_filesystem);
|
||||
|
||||
/* Free SFTP session */
|
||||
if (guac_client_data->sftp_session)
|
||||
guac_common_ssh_destroy_session(guac_client_data->sftp_session);
|
||||
|
||||
/* Free SFTP user */
|
||||
if (guac_client_data->sftp_user)
|
||||
guac_common_ssh_destroy_user(guac_client_data->sftp_user);
|
||||
|
||||
guac_common_ssh_uninit();
|
||||
#endif
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user