4 files changed, 35 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index 5f73ce63fcae..42b1f43b943b 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -168,9 +168,12 @@
 #define PPC_INST_AND			0x7c000038
 #define PPC_INST_ANDDOT			0x7c000039
 #define PPC_INST_OR			0x7c000378
+#define PPC_INST_XOR			0x7c000278
 #define PPC_INST_ANDI			0x70000000
 #define PPC_INST_ORI			0x60000000
 #define PPC_INST_ORIS			0x64000000
+#define PPC_INST_XORI			0x68000000
+#define PPC_INST_XORIS			0x6c000000
 #define PPC_INST_NEG			0x7c0000d0
 #define PPC_INST_BRANCH			0x48000000
 #define PPC_INST_BRANCH_COND		0x40800000
diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h
index 3d5179bb122f..eb0b1864d400 100644
--- a/arch/powerpc/include/uapi/asm/socket.h
+++ b/arch/powerpc/include/uapi/asm/socket.h
@@ -47,6 +47,7 @@
 /* Socket filtering */
 #define SO_ATTACH_FILTER	26
 #define SO_DETACH_FILTER	27
+#define SO_GET_FILTER		SO_ATTACH_FILTER
 
 #define SO_PEERNAME		28
 #define SO_TIMESTAMP		29
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index 1fc8109bf2f9..8a5dfaf5c6b7 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h
@@ -134,6 +134,12 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh);
 				     ___PPC_RS(a) | IMM_L(i))
 #define PPC_ORIS(d, a, i)	EMIT(PPC_INST_ORIS | ___PPC_RA(d) |	      \
 				     ___PPC_RS(a) | IMM_L(i))
+#define PPC_XOR(d, a, b)	EMIT(PPC_INST_XOR | ___PPC_RA(d) |	      \
+				     ___PPC_RS(a) | ___PPC_RB(b))
+#define PPC_XORI(d, a, i)	EMIT(PPC_INST_XORI | ___PPC_RA(d) |	      \
+				     ___PPC_RS(a) | IMM_L(i))
+#define PPC_XORIS(d, a, i)	EMIT(PPC_INST_XORIS | ___PPC_RA(d) |	      \
+				     ___PPC_RS(a) | IMM_L(i))
 #define PPC_SLW(d, a, s)	EMIT(PPC_INST_SLW | ___PPC_RA(d) |	      \
 				     ___PPC_RS(a) | ___PPC_RB(s))
 #define PPC_SRW(d, a, s)	EMIT(PPC_INST_SRW | ___PPC_RA(d) |	      \
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
index dd1130642d07..e834f1ec23c8 100644
--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c
@@ -13,6 +13,8 @@
 #include <asm/cacheflush.h>
 #include <linux/netdevice.h>
 #include <linux/filter.h>
+#include <linux/if_vlan.h>
+
 #include "bpf_jit.h"
 
 #ifndef __BIG_ENDIAN
@@ -89,6 +91,8 @@ static void bpf_jit_build_prologue(struct sk_filter *fp, u32 *image,
 	case BPF_S_ANC_IFINDEX:
 	case BPF_S_ANC_MARK:
 	case BPF_S_ANC_RXHASH:
+	case BPF_S_ANC_VLAN_TAG:
+	case BPF_S_ANC_VLAN_TAG_PRESENT:
 	case BPF_S_ANC_CPU:
 	case BPF_S_ANC_QUEUE:
 	case BPF_S_LD_W_ABS:
@@ -232,6 +236,17 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
 			if (K >= 65536)
 				PPC_ORIS(r_A, r_A, IMM_H(K));
 			break;
+		case BPF_S_ANC_ALU_XOR_X:
+		case BPF_S_ALU_XOR_X: /* A ^= X */
+			ctx->seen |= SEEN_XREG;
+			PPC_XOR(r_A, r_A, r_X);
+			break;
+		case BPF_S_ALU_XOR_K: /* A ^= K */
+			if (IMM_L(K))
+				PPC_XORI(r_A, r_A, IMM_L(K));
+			if (K >= 65536)
+				PPC_XORIS(r_A, r_A, IMM_H(K));
+			break;
 		case BPF_S_ALU_LSH_X: /* A <<= X; */
 			ctx->seen |= SEEN_XREG;
 			PPC_SLW(r_A, r_A, r_X);
@@ -371,6 +386,16 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
 			PPC_LWZ_OFFS(r_A, r_skb, offsetof(struct sk_buff,
 							  rxhash));
 			break;
+		case BPF_S_ANC_VLAN_TAG:
+		case BPF_S_ANC_VLAN_TAG_PRESENT:
+			BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, vlan_tci) != 2);
+			PPC_LHZ_OFFS(r_A, r_skb, offsetof(struct sk_buff,
+							  vlan_tci));
+			if (filter[i].code == BPF_S_ANC_VLAN_TAG)
+				PPC_ANDI(r_A, r_A, VLAN_VID_MASK);
+			else
+				PPC_ANDI(r_A, r_A, VLAN_TAG_PRESENT);
+			break;
 		case BPF_S_ANC_QUEUE:
 			BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff,
 						  queue_mapping) != 2);