linux/samples
Martin KaFai Lau 90e02896f1 bpf: Add test for bpf_redirect to ipip/ip6tnl
The test creates two netns, ns1 and ns2.  The host (the default netns)
has an ipip or ip6tnl dev configured for tunneling traffic to the ns2.

    ping VIPS from ns1 <----> host <--tunnel--> ns2 (VIPs at loopback)

The test is to have ns1 pinging VIPs configured at the loopback
interface in ns2.

The VIPs are 10.10.1.102 and 2401:face::66 (which are configured
at lo@ns2). [Note: 0x66 => 102].

At ns1, the VIPs are routed _via_ the host.

At the host, bpf programs are installed at the veth to redirect packets
from a veth to the ipip/ip6tnl.  The test is configured in a way so
that both ingress and egress can be tested.

At ns2, the ipip/ip6tnl dev is configured with the local and remote address
specified.  The return path is routed to the dev ipip/ip6tnl.

During egress test, the host also locally tests pinging the VIPs to ensure
that bpf_redirect at egress also works for the direct egress (i.e. not
forwarding from dev ve1 to ve2).

Acked-by: Alexei Starovoitov <ast@fb.com>
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-11-12 23:38:07 -05:00
..
auxdisplay samples: move auxdisplay example code from Documentation 2016-09-23 11:52:32 -06:00
blackfin samples: move blackfin gptimers-example from Documentation 2016-10-10 07:12:02 -06:00
bpf bpf: Add test for bpf_redirect to ipip/ip6tnl 2016-11-12 23:38:07 -05:00
configfs
connector
hidraw
hw_breakpoint
kdb
kfifo
kobject
kprobes samples/kretprobe: fix the wrong type 2016-08-04 08:50:07 -04:00
livepatch
mei samples: move misc-devices/mei example code from Documentation 2016-09-23 11:51:43 -06:00
mic/mpssd samples: move mic/mpssd example code from Documentation 2016-09-20 12:38:48 -06:00
pktgen samples: Add an IPv6 '-6' option to the pktgen scripts 2016-07-20 22:16:02 -07:00
rpmsg rpmsg: Allow callback to return errors 2016-09-08 22:15:25 -07:00
seccomp samples/seccomp: Add standalone config option 2016-07-07 10:58:03 -07:00
timers samples: move timers example code from Documentation 2016-09-23 11:51:58 -06:00
trace_events
trace_printk tracing: Add trace_printk sample code 2016-06-20 09:54:21 -04:00
uhid
v4l [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
watchdog samples: move watchdog example code from Documentation 2016-09-23 11:52:14 -06:00
Kconfig samples: move blackfin gptimers-example from Documentation 2016-10-10 07:12:02 -06:00
Makefile samples: move blackfin gptimers-example from Documentation 2016-10-10 07:12:02 -06:00