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authorDaniel Borkmann <dborkman@redhat.com>2013-06-08 17:57:50 +0200
committerDaniel Borkmann <dborkman@redhat.com>2013-06-08 17:57:50 +0200
commit89f658fb0f1d055b671b92e474cf9dbeb5974adf (patch)
treed4d4c642f3f13e8fa1d62f3699d44d91d0bf7fde
parent021a7923928c27e1e4ad7d4a8c789bb77e00886f (diff)
bpfc: also allow to load skb len into X
This functionality is available in the kernel, so make it also available for use in bpfc. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
-rw-r--r--bpf_parser.y2
1 files changed, 2 insertions, 0 deletions
diff --git a/bpf_parser.y b/bpf_parser.y
index 0bbc17d..19268ae 100644
--- a/bpf_parser.y
+++ b/bpf_parser.y
@@ -354,6 +354,8 @@ ldxi
ldx
: OP_LDX '#' number {
set_curr_instr(BPF_LDX | BPF_IMM, 0, 0, $3); }
+ | OP_LDX K_PKT_LEN {
+ set_curr_instr(BPF_LDX | BPF_W | BPF_LEN, 0, 0, 0); }
| OP_LDX 'M' '[' number ']' {
set_curr_instr(BPF_LDX | BPF_MEM, 0, 0, $4); }
| OP_LDXB number '*' '(' '[' number ']' '&' number ')' {