diff options
| author | djm@openbsd.org <djm@openbsd.org> | 2023-01-06 02:47:18 +0000 |
|---|---|---|
| committer | Damien Miller <djm@mindrot.org> | 2023-01-06 16:23:16 +1100 |
| commit | 2d1ff2b9431393ad99ef496d5e3b9dd0d4f5ac8c (patch) | |
| tree | 3f244d571a85c08ae82b00c079af13b12e49e462 /channels.h | |
| parent | 0e34348d0bc0b1522f75d6212a53d6d1d1367980 (diff) | |
upstream: Implement channel inactivity timeouts
This adds a sshd_config ChannelTimeouts directive that allows channels that
have not seen traffic in a configurable interval to be automatically closed.
Different timeouts may be applied to session, X11, agent and TCP forwarding
channels.
Note: this only affects channels over an opened SSH connection and not
the connection itself. Most clients close the connection when their channels
go away, with a notable exception being ssh(1) in multiplexing mode.
ok markus dtucker
OpenBSD-Commit-ID: ae8bba3ed9d9f95ff2e2dc8dcadfa36b48e6c0b8
Diffstat (limited to 'channels.h')
| -rw-r--r-- | channels.h | 13 |
1 files changed, 12 insertions, 1 deletions
@@ -1,4 +1,4 @@ -/* $OpenBSD: channels.h,v 1.146 2023/01/06 02:42:34 djm Exp $ */ +/* $OpenBSD: channels.h,v 1.147 2023/01/06 02:47:18 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> @@ -203,6 +203,13 @@ struct Channel { void *mux_ctx; int mux_pause; int mux_downstream_id; + + /* Inactivity timeouts */ + + /* Last traffic seen for OPEN channels */ + time_t lastused; + /* Inactivity timeout deadline in seconds (0 = no timeout) */ + u_int inactive_deadline; }; #define CHAN_EXTENDED_IGNORE 0 @@ -299,6 +306,10 @@ void channel_cancel_cleanup(struct ssh *, int); int channel_close_fd(struct ssh *, Channel *, int *); void channel_send_window_changes(struct ssh *); +/* channel inactivity timeouts */ +void channel_add_timeout(struct ssh *, const char *, u_int); +void channel_clear_timeouts(struct ssh *); + /* mux proxy support */ int channel_proxy_downstream(struct ssh *, Channel *mc); |