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server: callback for channel_request_subsystem

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Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Aris Adamantiadis
2013-05-24 14:43:43 +02:00
committed by Andreas Schneider
parent db20a22e51
commit 2a0c1e917f
2 changed files with 27 additions and 0 deletions
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16
include/libssh/callbacks.h
View File

@@ -569,6 +569,18 @@ typedef int (*ssh_channel_env_request_callback) (ssh_session session,
const char *env_name,
const char *env_value,
void *userdata);
/**
* @brief SSH channel subsystem request from a client.
* @param channel the channel
* @param subsystem the subsystem required
* @param userdata Userdata to be passed to the callback function.
* @returns 0 if the subsystem request is accepted
* @returns 1 if the request is denied
*/
typedef int (*ssh_channel_subsystem_request_callback) (ssh_session session,
ssh_channel channel,
const char *subsystem,
void *userdata);
struct ssh_channel_callbacks_struct {
@@ -630,6 +642,10 @@ struct ssh_channel_callbacks_struct {
* variable to be set.
*/
ssh_channel_env_request_callback channel_env_request_function;
/** This function will be called when a client requests a subsystem
* (like sftp).
*/
ssh_channel_subsystem_request_callback channel_subsystem_request_function;
};
typedef struct ssh_channel_callbacks_struct *ssh_channel_callbacks;

11
src/messages.c
View File

@@ -198,6 +198,17 @@ static int ssh_execute_server_callbacks(ssh_session session, ssh_message msg){
ssh_message_reply_default(msg);
return SSH_OK;
}
} else if(msg->channel_request.type == SSH_CHANNEL_REQUEST_SUBSYSTEM){
if(ssh_callbacks_exists(channel->callbacks, channel_subsystem_request_function)){
rc = channel->callbacks->channel_subsystem_request_function(session, channel,
msg->channel_request.subsystem,
channel->callbacks->userdata);
if(rc == 0)
ssh_message_channel_request_reply_success(msg);
else
ssh_message_reply_default(msg);
return SSH_OK;
}
}
break;
case SSH_REQUEST_SERVICE: