Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 303249ab authored by Nicolas Schichan's avatar Nicolas Schichan Committed by David S. Miller
Browse files

ARM: net: add support for BPF_ANC | SKF_AD_PAY_OFFSET in ARM JIT. 



Signed-off-by: default avatarNicolas Schichan <nschichan@freebox.fr>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1447f93f

arch/arm/net/bpf_jit_32.c

+8 −0
Original line number Diff line number Diff line
@@ -915,6 +915,14 @@ static int build_body(struct jit_ctx *ctx) 
			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.