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channel: Add ssh_channel_accept_forward().

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This works same way as ssh_forward_accept() but can return a destination
port of the channel (useful if SSH connection forwarding several TCP/IP
ports).

Reviewed-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Oleksandr Shneyder
2014-01-11 00:33:33 +01:00
committed by Andreas Schneider
parent 6d09104ad3
commit a1c4fc07d4
2 changed files with 24 additions and 3 deletions
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1
include/libssh/libssh.h
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@@ -406,6 +406,7 @@ LIBSSH_API void ssh_disconnect(ssh_session session);
LIBSSH_API char *ssh_dirname (const char *path);
LIBSSH_API int ssh_finalize(void);
LIBSSH_API ssh_channel ssh_forward_accept(ssh_session session, int timeout_ms);
LIBSSH_API ssh_channel ssh_channel_accept_forward(ssh_session session, int timeout_ms, int *destination_port);
LIBSSH_API int ssh_forward_cancel(ssh_session session, const char *address, int port);
LIBSSH_API int ssh_forward_listen(ssh_session session, const char *address, int port, int *bound_port);
LIBSSH_API void ssh_free(ssh_session session);

26
src/channels.c
View File

@@ -1989,7 +1989,7 @@ error:
}
static ssh_channel ssh_channel_accept(ssh_session session, int channeltype,
int timeout_ms) {
int timeout_ms, int *destination_port) {
#ifndef _WIN32
static const struct timespec ts = {
.tv_sec = 0,
@@ -2016,6 +2016,10 @@ static ssh_channel ssh_channel_accept(ssh_session session, int channeltype,
ssh_message_subtype(msg) == channeltype) {
ssh_list_remove(session->ssh_message_list, iterator);
channel = ssh_message_channel_request_open_reply_accept(msg);
if(destination_port) {
*destination_port=msg->channel_request_open.destination_port;
}
ssh_message_free(msg);
return channel;
}
@@ -2046,7 +2050,7 @@ static ssh_channel ssh_channel_accept(ssh_session session, int channeltype,
* the server.
*/
ssh_channel ssh_channel_accept_x11(ssh_channel channel, int timeout_ms) {
return ssh_channel_accept(channel->session, SSH_CHANNEL_X11, timeout_ms);
return ssh_channel_accept(channel->session, SSH_CHANNEL_X11, timeout_ms, NULL);
}
/**
@@ -2300,7 +2304,23 @@ error:
* the server
*/
ssh_channel ssh_forward_accept(ssh_session session, int timeout_ms) {
return ssh_channel_accept(session, SSH_CHANNEL_FORWARDED_TCPIP, timeout_ms);
return ssh_channel_accept(session, SSH_CHANNEL_FORWARDED_TCPIP, timeout_ms, NULL);
}
/**
* @brief Accept an incoming TCP/IP forwarding channel and get information
* about incomming connection
* @param[in] session The ssh session to use.
*
* @param[in] timeout_ms A timeout in milliseconds.
*
* @param[in] destination_port A pointer to destination port or NULL.
*
* @return Newly created channel, or NULL if no incoming channel request from
* the server
*/
ssh_channel ssh_channel_accept_forward(ssh_session session, int timeout_ms, int* destination_port) {
return ssh_channel_accept(session, SSH_CHANNEL_FORWARDED_TCPIP, timeout_ms, destination_port);
}
/**