Patch to fix dynamic -R forwarding when not root
Ari Hyttinen
ari.hyttinen at gmail.com
Wed Oct 21 19:01:34 EST 2009
Hi!
Sorry if this has already been reported or even fixed, I didn't search
very thoroughly. Here's a patch to make dynamic -R remote port
allocation work even when not connecting as root. Without the patch I
got that "Server has disabled port forwarding." message visible in the
patch.
OpenSSH version I'm using is openssh-5.2p1, compiled from official
source package, configured without any configure options, on Ubuntu
Linux platform.
PS. If this patch isn't necessary, and I did something else wrong when
trying to 'ssh -R 0:localhost:22 user at remote', please let me know!
--- serverloop.c.original 2009-10-21 10:45:13.000000000 +0300
+++ serverloop.c 2009-10-21 10:53:09.000000000 +0300
@@ -1119,9 +1119,9 @@
if (!options.allow_tcp_forwarding ||
no_port_forwarding_flag ||
(!want_reply && listen_port == 0)
#ifndef NO_IPPORT_RESERVED_CONCEPT
- || (listen_port < IPPORT_RESERVED && pw->pw_uid != 0)
+ || (listen_port !=0 && listen_port < IPPORT_RESERVED && pw->pw_uid != 0)
#endif
) {
success = 0;
packet_send_debug("Server has disabled port forwarding.");
--
Ari Hyttinen
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