Commit Graph

7 Commits

Author SHA1 Message Date
Thomas Graf 5d91efa8dd can: gw: Remove pointless casts
No need to cast return value of nla_data()

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-07-10 22:36:17 +02:00
Thomas Graf 1da0faa380 can: gw: Properly fill the netlink header when responding to RTM_GETROUTE
- set message type to RTM_NEWROUTE
 - relate to original request by inheriting the sequence and port number.
 - set NLM_F_MULTI because it's a dump and more messages will follow

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-07-10 22:36:01 +02:00
Thomas Graf 732d35fd08 can: gw: Use nla_policy to validate netlink attributes
Also use nla_get_u32() instead of nla_memcpy() to access u32 attribtues.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-07-10 22:35:41 +02:00
Thomas Graf 6eaf53ca7b can: gw: Don't bump nlmsg_len manually
nlmsg_end() will take care of this when we finalize the message.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-07-10 22:33:40 +02:00
Daniel Baluta a75afd4770 can: fix sparse warning for cgw_list
Make cgw_list static to remove the following sparse warning:
net/can/gw.c:69:1: warning: symbol 'cgw_list' was not declared.
Should it be static?

Signed-off-by: Daniel Baluta <dbaluta@ixiacom.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2012-04-16 21:08:18 +02:00
Marc Kleine-Budde f861c2b80c can: remove references to berlios mailinglist
The BerliOS project, which currently hosts our mailinglist, will
close with the end of the year. Now take the chance and remove all
occurrences of the mailinglist address from the source files.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-10-17 19:22:46 -04:00
Oliver Hartkopp c1aabdf379 can-gw: add netlink based CAN routing
This patch adds a CAN Gateway/Router to route (and modify) CAN frames.

It is based on the PF_CAN core infrastructure for msg filtering and msg
sending and can optionally modify routed CAN frames on the fly.
CAN frames can *only* be routed between CAN network interfaces (one hop).
They can be modified with AND/OR/XOR/SET operations as configured by the
netlink configuration interface known e.g. from iptables. From the netlink
view this can-gw implements RTM_{NEW|DEL|GET}ROUTE for PF_CAN.

The CAN specific userspace tool to manage CAN routing entries can be found in
the CAN utils http://svn.berlios.de/wsvn/socketcan/trunk/can-utils/cangw.c
at the SocketCAN SVN on BerliOS.

Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-09-16 17:37:51 -04:00