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| author | Jesper Dangaard Brouer <brouer@redhat.com> | 2017-05-01 11:26:20 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-05-01 10:42:37 -0400 |
| commit | f76254a845a661ccdb9fa246ee72197f90a8d3dd (patch) | |
| tree | b101f0cb75d4d3d75880286c36d95951ad94edd6 | |
| parent | 6387d0111ca4740b69a082a92fc373185af11133 (diff) | |
| download | linux-f76254a845a661ccdb9fa246ee72197f90a8d3dd.tar.bz2 | |
samples/bpf: fix XDP_FLAGS_SKB_MODE detach for xdp_tx_iptunnel
The xdp_tx_iptunnel program can be terminated in two ways, after
N-seconds or via Ctrl-C SIGINT. The SIGINT code path does not
handle detatching the correct XDP program, in-case the program
was attached with XDP_FLAGS_SKB_MODE.
Fix this by storing the XDP flags as a global variable, which is
available for the SIGINT handler function.
Fixes: 3993f2cb983b ("samples/bpf: Add support for SKB_MODE to xdp1 and xdp_tx_iptunnel")
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | samples/bpf/xdp_tx_iptunnel_user.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/samples/bpf/xdp_tx_iptunnel_user.c b/samples/bpf/xdp_tx_iptunnel_user.c index 880dd4aebfa4..92b8bde9337c 100644 --- a/samples/bpf/xdp_tx_iptunnel_user.c +++ b/samples/bpf/xdp_tx_iptunnel_user.c @@ -25,11 +25,12 @@ #define STATS_INTERVAL_S 2U static int ifindex = -1; +static __u32 xdp_flags = 0; static void int_exit(int sig) { if (ifindex > -1) - set_link_xdp_fd(ifindex, -1, 0); + set_link_xdp_fd(ifindex, -1, xdp_flags); exit(0); } @@ -142,7 +143,6 @@ int main(int argc, char **argv) struct iptnl_info tnl = {}; struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY}; struct vip vip = {}; - __u32 xdp_flags = 0; char filename[256]; int opt; int i; |