From db20a22e51d578de1bb3b9edd240296091c3dc94 Mon Sep 17 00:00:00 2001 From: Aris Adamantiadis Date: Tue, 21 May 2013 15:27:20 +0200 Subject: server: added 2 missing channel callbacks Reviewed-by: Andreas Schneider --- include/libssh/callbacks.h | 41 ++++++++++++++++++++++++++++++++++++++++- 1 file changed, 40 insertions(+), 1 deletion(-) (limited to 'include/libssh') diff --git a/include/libssh/callbacks.h b/include/libssh/callbacks.h index 8804370b..a838bdce 100644 --- a/include/libssh/callbacks.h +++ b/include/libssh/callbacks.h @@ -540,6 +540,37 @@ typedef int (*ssh_channel_pty_window_change_callback) (ssh_session session, int pxwidth, int pwheight, void *userdata); +/** + * @brief SSH channel Exec request from a client. + * @param channel the channel + * @param command the shell command to be executed + * @param userdata Userdata to be passed to the callback function. + * @returns 0 if the exec request is accepted + * @returns 1 if the request is denied + */ +typedef int (*ssh_channel_exec_request_callback) (ssh_session session, + ssh_channel channel, + const char *command, + void *userdata); + +/** + * @brief SSH channel environment request from a client. + * @param channel the channel + * @param env_name name of the environment value to be set + * @param env_value value of the environment value to be set + * @param userdata Userdata to be passed to the callback function. + * @returns 0 if the env request is accepted + * @returns 1 if the request is denied + * @warning some environment variables can be dangerous if changed (e.g. + * LD_PRELOAD) and should not be fulfilled. + */ +typedef int (*ssh_channel_env_request_callback) (ssh_session session, + ssh_channel channel, + const char *env_name, + const char *env_value, + void *userdata); + + struct ssh_channel_callbacks_struct { /** DON'T SET THIS use ssh_callbacks_init() instead. */ size_t size; @@ -591,8 +622,16 @@ struct ssh_channel_callbacks_struct { * window change. */ ssh_channel_pty_window_change_callback channel_pty_window_change_function; - + /** This function will be called when a client requests a + * command execution. + */ + ssh_channel_exec_request_callback channel_exec_request_function; + /** This function will be called when a client requests an environment + * variable to be set. + */ + ssh_channel_env_request_callback channel_env_request_function; }; + typedef struct ssh_channel_callbacks_struct *ssh_channel_callbacks; /** -- cgit v1.2.3