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| author |   Nicolas Schichan <nschichan@freebox.fr> | 2015-05-07 15:00:13 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-05-12 18:20:42 -0400 |
| commit | 24e737c1ebacf0a19cb1d2671949de12b3361f4d (patch) | |
| tree | f50357c1a2565efce502f0137250025676a082bb /arch | |
| parent | Merge branch 'netdev_page_frags' (diff) | |
| download | linux-dev-24e737c1ebacf0a19cb1d2671949de12b3361f4d.tar.xz linux-dev-24e737c1ebacf0a19cb1d2671949de12b3361f4d.zip | |
ARM: net: add JIT support for loads from struct seccomp_data.
Signed-off-by: Nicolas Schichan <nschichan@freebox.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/net/bpf_jit_32.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c index e1268f905026..b5f470ddab6d 100644 --- a/arch/arm/net/bpf_jit_32.c +++ b/arch/arm/net/bpf_jit_32.c @@ -852,6 +852,16 @@ b_epilogue: off = offsetof(struct sk_buff, queue_mapping); emit(ARM_LDRH_I(r_A, r_skb, off), ctx); break; + case BPF_LDX | BPF_W | BPF_ABS: + /* + * load a 32bit word from struct seccomp_data. + * seccomp_check_filter() will already have checked + * that k is 32bit aligned and lies within the + * struct seccomp_data. + */ + ctx->seen |= SEEN_SKB; + emit(ARM_LDR_I(r_A, r_skb, k), ctx); + break; default: return -1; } |