[PATCH V2 net-next 2/3] ARM: net: add support for BPF_ANC | SKF_AD_PAY_OFFSET in ARM JIT.
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STALE4107d
SUPERSEDED
From: Nicolas Schichan <hidden>
Date: 2015-07-21 12:17:05
Also in:
lkml, netdev
Subsystem:
arm port, bpf jit for arm, bpf [general] (safe dynamic programs and tools), the rest · Maintainers:
Russell King, Puranjay Mohan, Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Linus Torvalds
Revision v2 of 2 in this series.
Revisions (2)
- v2 current
- v3 [diff vs current]
Signed-off-by: Nicolas Schichan <redacted> --- arch/arm/net/bpf_jit_32.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index 67a2d44..fe28beb 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c@@ -884,6 +884,14 @@ b_epilogue: off = offsetof(struct sk_buff, queue_mapping); emit(ARM_LDRH_I(r_A, r_skb, off), ctx); break; + case BPF_ANC | SKF_AD_PAY_OFFSET: + ctx->seen |= SEEN_SKB | SEEN_CALL; + + emit(ARM_MOV_R(ARM_R0, r_skb), ctx); + emit_mov_i(ARM_R3, (unsigned int)skb_get_poff, ctx); + emit_blx_r(ARM_R3, ctx); + emit(ARM_MOV_R(r_A, ARM_R0), ctx); + break; case BPF_LDX | BPF_W | BPF_ABS: /* * load a 32bit word from struct seccomp_data.
--
1.9.1