Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:

 1) Add BQL support to via-rhine, from Tino Reichardt.

 2) Integrate SWITCHDEV layer support into the DSA layer, so DSA drivers
    can support hw switch offloading.  From Floria Fainelli.

 3) Allow 'ip address' commands to initiate multicast group join/leave,
    from Madhu Challa.

 4) Many ipv4 FIB lookup optimizations from Alexander Duyck.

 5) Support EBPF in cls_bpf classifier and act_bpf action, from Daniel
    Borkmann.

 6) Remove the ugly compat support in ARP for ugly layers like ax25,
    rose, etc.  And use this to clean up the neigh layer, then use it to
    implement MPLS support.  All from Eric Biederman.

 7) Support L3 forwarding offloading in switches, from Scott Feldman.

 8) Collapse the LOCAL and MAIN ipv4 FIB tables when possible, to speed
    up route lookups even further.  From Alexander Duyck.

 9) Many improvements and bug fixes to the rhashtable implementation,
    from Herbert Xu and Thomas Graf.  In particular, in the case where
    an rhashtable user bulk adds a large number of items into an empty
    table, we expand the table much more sanely.

10) Don't make the tcp_metrics hash table per-namespace, from Eric
    Biederman.

11) Extend EBPF to access SKB fields, from Alexei Starovoitov.

12) Split out new connection request sockets so that they can be
    established in the main hash table.  Much less false sharing since
    hash lookups go direct to the request sockets instead of having to
    go first to the listener then to the request socks hashed
    underneath.  From Eric Dumazet.

13) Add async I/O support for crytpo AF_ALG sockets, from Tadeusz Struk.

14) Support stable privacy address generation for RFC7217 in IPV6.  From
    Hannes Frederic Sowa.

15) Hash network namespace into IP frag IDs, also from Hannes Frederic
    Sowa.

16) Convert PTP get/set methods to use 64-bit time, from Richard
    Cochran.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1816 commits)
  fm10k: Bump driver version to 0.15.2
  fm10k: corrected VF multicast update
  fm10k: mbx_update_max_size does not drop all oversized messages
  fm10k: reset head instead of calling update_max_size
  fm10k: renamed mbx_tx_dropped to mbx_tx_oversized
  fm10k: update xcast mode before synchronizing multicast addresses
  fm10k: start service timer on probe
  fm10k: fix function header comment
  fm10k: comment next_vf_mbx flow
  fm10k: don't handle mailbox events in iov_event path and always process mailbox
  fm10k: use separate workqueue for fm10k driver
  fm10k: Set PF queues to unlimited bandwidth during virtualization
  fm10k: expose tx_timeout_count as an ethtool stat
  fm10k: only increment tx_timeout_count in Tx hang path
  fm10k: remove extraneous "Reset interface" message
  fm10k: separate PF only stats so that VF does not display them
  fm10k: use hw->mac.max_queues for stats
  fm10k: only show actual queues, not the maximum in hardware
  fm10k: allow creation of VLAN on default vid
  fm10k: fix unused warnings
  ...

1 files changed, 374 insertions, 86 deletions

diff --git a/net/core/filter.c b/net/core/filter.c
index f6bdc2b1ba01..b669e75d2b36 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -150,10 +150,62 @@ static u64 __get_random_u32(u64 ctx, u64 a, u64 x, u64 r4, u64 r5)
 	return prandom_u32();
 }
 
+static u32 convert_skb_access(int skb_field, int dst_reg, int src_reg,
+			      struct bpf_insn *insn_buf)
+{
+	struct bpf_insn *insn = insn_buf;
+
+	switch (skb_field) {
+	case SKF_AD_MARK:
+		BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, mark) != 4);
+
+		*insn++ = BPF_LDX_MEM(BPF_W, dst_reg, src_reg,
+				      offsetof(struct sk_buff, mark));
+		break;
+
+	case SKF_AD_PKTTYPE:
+		*insn++ = BPF_LDX_MEM(BPF_B, dst_reg, src_reg, PKT_TYPE_OFFSET());
+		*insn++ = BPF_ALU32_IMM(BPF_AND, dst_reg, PKT_TYPE_MAX);
+#ifdef __BIG_ENDIAN_BITFIELD
+		*insn++ = BPF_ALU32_IMM(BPF_RSH, dst_reg, 5);
+#endif
+		break;
+
+	case SKF_AD_QUEUE:
+		BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, queue_mapping) != 2);
+
+		*insn++ = BPF_LDX_MEM(BPF_H, dst_reg, src_reg,
+				      offsetof(struct sk_buff, queue_mapping));
+		break;
+
+	case SKF_AD_VLAN_TAG:
+	case SKF_AD_VLAN_TAG_PRESENT:
+		BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, vlan_tci) != 2);
+		BUILD_BUG_ON(VLAN_TAG_PRESENT != 0x1000);
+
+		/* dst_reg = *(u16 *) (src_reg + offsetof(vlan_tci)) */
+		*insn++ = BPF_LDX_MEM(BPF_H, dst_reg, src_reg,
+				      offsetof(struct sk_buff, vlan_tci));
+		if (skb_field == SKF_AD_VLAN_TAG) {
+			*insn++ = BPF_ALU32_IMM(BPF_AND, dst_reg,
+						~VLAN_TAG_PRESENT);
+		} else {
+			/* dst_reg >>= 12 */
+			*insn++ = BPF_ALU32_IMM(BPF_RSH, dst_reg, 12);
+			/* dst_reg &= 1 */
+			*insn++ = BPF_ALU32_IMM(BPF_AND, dst_reg, 1);
+		}
+		break;
+	}
+
+	return insn - insn_buf;
+}
+
 static bool convert_bpf_extensions(struct sock_filter *fp,
 				   struct bpf_insn **insnp)
 {
 	struct bpf_insn *insn = *insnp;
+	u32 cnt;
 
 	switch (fp->k) {
 	case SKF_AD_OFF + SKF_AD_PROTOCOL:
@@ -167,13 +219,8 @@ static bool convert_bpf_extensions(struct sock_filter *fp,
 		break;
 
 	case SKF_AD_OFF + SKF_AD_PKTTYPE:
-		*insn++ = BPF_LDX_MEM(BPF_B, BPF_REG_A, BPF_REG_CTX,
-				      PKT_TYPE_OFFSET());
-		*insn = BPF_ALU32_IMM(BPF_AND, BPF_REG_A, PKT_TYPE_MAX);
-#ifdef __BIG_ENDIAN_BITFIELD
-		insn++;
-                *insn = BPF_ALU32_IMM(BPF_RSH, BPF_REG_A, 5);
-#endif
+		cnt = convert_skb_access(SKF_AD_PKTTYPE, BPF_REG_A, BPF_REG_CTX, insn);
+		insn += cnt - 1;
 		break;
 
 	case SKF_AD_OFF + SKF_AD_IFINDEX:
@@ -197,10 +244,8 @@ static bool convert_bpf_extensions(struct sock_filter *fp,
 		break;
 
 	case SKF_AD_OFF + SKF_AD_MARK:
-		BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, mark) != 4);
-
-		*insn = BPF_LDX_MEM(BPF_W, BPF_REG_A, BPF_REG_CTX,
-				    offsetof(struct sk_buff, mark));
+		cnt = convert_skb_access(SKF_AD_MARK, BPF_REG_A, BPF_REG_CTX, insn);
+		insn += cnt - 1;
 		break;
 
 	case SKF_AD_OFF + SKF_AD_RXHASH:
@@ -211,29 +256,30 @@ static bool convert_bpf_extensions(struct sock_filter *fp,
 		break;
 
 	case SKF_AD_OFF + SKF_AD_QUEUE:
-		BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, queue_mapping) != 2);
-
-		*insn = BPF_LDX_MEM(BPF_H, BPF_REG_A, BPF_REG_CTX,
-				    offsetof(struct sk_buff, queue_mapping));
+		cnt = convert_skb_access(SKF_AD_QUEUE, BPF_REG_A, BPF_REG_CTX, insn);
+		insn += cnt - 1;
 		break;
 
 	case SKF_AD_OFF + SKF_AD_VLAN_TAG:
+		cnt = convert_skb_access(SKF_AD_VLAN_TAG,
+					 BPF_REG_A, BPF_REG_CTX, insn);
+		insn += cnt - 1;
+		break;
+
 	case SKF_AD_OFF + SKF_AD_VLAN_TAG_PRESENT:
-		BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, vlan_tci) != 2);
-		BUILD_BUG_ON(VLAN_TAG_PRESENT != 0x1000);
+		cnt = convert_skb_access(SKF_AD_VLAN_TAG_PRESENT,
+					 BPF_REG_A, BPF_REG_CTX, insn);
+		insn += cnt - 1;
+		break;
+
+	case SKF_AD_OFF + SKF_AD_VLAN_TPID:
+		BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, vlan_proto) != 2);
 
-		/* A = *(u16 *) (CTX + offsetof(vlan_tci)) */
+		/* A = *(u16 *) (CTX + offsetof(vlan_proto)) */
 		*insn++ = BPF_LDX_MEM(BPF_H, BPF_REG_A, BPF_REG_CTX,
-				      offsetof(struct sk_buff, vlan_tci));
-		if (fp->k == SKF_AD_OFF + SKF_AD_VLAN_TAG) {
-			*insn = BPF_ALU32_IMM(BPF_AND, BPF_REG_A,
-					      ~VLAN_TAG_PRESENT);
-		} else {
-			/* A >>= 12 */
-			*insn++ = BPF_ALU32_IMM(BPF_RSH, BPF_REG_A, 12);
-			/* A &= 1 */
-			*insn = BPF_ALU32_IMM(BPF_AND, BPF_REG_A, 1);
-		}
+				      offsetof(struct sk_buff, vlan_proto));
+		/* A = ntohs(A) [emitting a nop or swap16] */
+		*insn = BPF_ENDIAN(BPF_FROM_BE, BPF_REG_A, 16);
 		break;
 
 	case SKF_AD_OFF + SKF_AD_PAY_OFFSET:
@@ -814,7 +860,7 @@ static void bpf_release_orig_filter(struct bpf_prog *fp)
 
 static void __bpf_prog_release(struct bpf_prog *prog)
 {
-	if (prog->aux->prog_type == BPF_PROG_TYPE_SOCKET_FILTER) {
+	if (prog->type == BPF_PROG_TYPE_SOCKET_FILTER) {
 		bpf_prog_put(prog);
 	} else {
 		bpf_release_orig_filter(prog);
@@ -1019,6 +1065,32 @@ void bpf_prog_destroy(struct bpf_prog *fp)
 }
 EXPORT_SYMBOL_GPL(bpf_prog_destroy);
 
+static int __sk_attach_prog(struct bpf_prog *prog, struct sock *sk)
+{
+	struct sk_filter *fp, *old_fp;
+
+	fp = kmalloc(sizeof(*fp), GFP_KERNEL);
+	if (!fp)
+		return -ENOMEM;
+
+	fp->prog = prog;
+	atomic_set(&fp->refcnt, 0);
+
+	if (!sk_filter_charge(sk, fp)) {
+		kfree(fp);
+		return -ENOMEM;
+	}
+
+	old_fp = rcu_dereference_protected(sk->sk_filter,
+					   sock_owned_by_user(sk));
+	rcu_assign_pointer(sk->sk_filter, fp);
+
+	if (old_fp)
+		sk_filter_uncharge(sk, old_fp);
+
+	return 0;
+}
+
 /**
  *	sk_attach_filter - attach a socket filter
  *	@fprog: the filter program
@@ -1031,7 +1103,6 @@ EXPORT_SYMBOL_GPL(bpf_prog_destroy);
  */
 int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk)
 {
-	struct sk_filter *fp, *old_fp;
 	unsigned int fsize = bpf_classic_proglen(fprog);
 	unsigned int bpf_fsize = bpf_prog_size(fprog->len);
 	struct bpf_prog *prog;
@@ -1068,36 +1139,20 @@ int sk_attach_filter(struct sock_fprog *fprog, struct sock *sk)
 	if (IS_ERR(prog))
 		return PTR_ERR(prog);
 
-	fp = kmalloc(sizeof(*fp), GFP_KERNEL);
-	if (!fp) {
+	err = __sk_attach_prog(prog, sk);
+	if (err < 0) {
 		__bpf_prog_release(prog);
-		return -ENOMEM;
-	}
-	fp->prog = prog;
-
-	atomic_set(&fp->refcnt, 0);
-
-	if (!sk_filter_charge(sk, fp)) {
-		__sk_filter_release(fp);
-		return -ENOMEM;
+		return err;
 	}
 
-	old_fp = rcu_dereference_protected(sk->sk_filter,
-					   sock_owned_by_user(sk));
-	rcu_assign_pointer(sk->sk_filter, fp);
-
-	if (old_fp)
-		sk_filter_uncharge(sk, old_fp);
-
 	return 0;
 }
 EXPORT_SYMBOL_GPL(sk_attach_filter);
 
-#ifdef CONFIG_BPF_SYSCALL
 int sk_attach_bpf(u32 ufd, struct sock *sk)
 {
-	struct sk_filter *fp, *old_fp;
 	struct bpf_prog *prog;
+	int err;
 
 	if (sock_flag(sk, SOCK_FILTER_LOCKED))
 		return -EPERM;
@@ -1106,40 +1161,168 @@ int sk_attach_bpf(u32 ufd, struct sock *sk)
 	if (IS_ERR(prog))
 		return PTR_ERR(prog);
 
-	if (prog->aux->prog_type != BPF_PROG_TYPE_SOCKET_FILTER) {
-		/* valid fd, but invalid program type */
+	if (prog->type != BPF_PROG_TYPE_SOCKET_FILTER) {
 		bpf_prog_put(prog);
 		return -EINVAL;
 	}
 
-	fp = kmalloc(sizeof(*fp), GFP_KERNEL);
-	if (!fp) {
+	err = __sk_attach_prog(prog, sk);
+	if (err < 0) {
 		bpf_prog_put(prog);
-		return -ENOMEM;
+		return err;
 	}
-	fp->prog = prog;
 
-	atomic_set(&fp->refcnt, 0);
+	return 0;
+}
 
-	if (!sk_filter_charge(sk, fp)) {
-		__sk_filter_release(fp);
-		return -ENOMEM;
+#define BPF_RECOMPUTE_CSUM(flags)	((flags) & 1)
+
+static u64 bpf_skb_store_bytes(u64 r1, u64 r2, u64 r3, u64 r4, u64 flags)
+{
+	struct sk_buff *skb = (struct sk_buff *) (long) r1;
+	unsigned int offset = (unsigned int) r2;
+	void *from = (void *) (long) r3;
+	unsigned int len = (unsigned int) r4;
+	char buf[16];
+	void *ptr;
+
+	/* bpf verifier guarantees that:
+	 * 'from' pointer points to bpf program stack
+	 * 'len' bytes of it were initialized
+	 * 'len' > 0
+	 * 'skb' is a valid pointer to 'struct sk_buff'
+	 *
+	 * so check for invalid 'offset' and too large 'len'
+	 */
+	if (unlikely(offset > 0xffff || len > sizeof(buf)))
+		return -EFAULT;
+
+	if (skb_cloned(skb) && !skb_clone_writable(skb, offset + len))
+		return -EFAULT;
+
+	ptr = skb_header_pointer(skb, offset, len, buf);
+	if (unlikely(!ptr))
+		return -EFAULT;
+
+	if (BPF_RECOMPUTE_CSUM(flags))
+		skb_postpull_rcsum(skb, ptr, len);
+
+	memcpy(ptr, from, len);
+
+	if (ptr == buf)
+		/* skb_store_bits cannot return -EFAULT here */
+		skb_store_bits(skb, offset, ptr, len);
+
+	if (BPF_RECOMPUTE_CSUM(flags) && skb->ip_summed == CHECKSUM_COMPLETE)
+		skb->csum = csum_add(skb->csum, csum_partial(ptr, len, 0));
+	return 0;
+}
+
+const struct bpf_func_proto bpf_skb_store_bytes_proto = {
+	.func		= bpf_skb_store_bytes,
+	.gpl_only	= false,
+	.ret_type	= RET_INTEGER,
+	.arg1_type	= ARG_PTR_TO_CTX,
+	.arg2_type	= ARG_ANYTHING,
+	.arg3_type	= ARG_PTR_TO_STACK,
+	.arg4_type	= ARG_CONST_STACK_SIZE,
+	.arg5_type	= ARG_ANYTHING,
+};
+
+#define BPF_HEADER_FIELD_SIZE(flags)	((flags) & 0x0f)
+#define BPF_IS_PSEUDO_HEADER(flags)	((flags) & 0x10)
+
+static u64 bpf_l3_csum_replace(u64 r1, u64 offset, u64 from, u64 to, u64 flags)
+{
+	struct sk_buff *skb = (struct sk_buff *) (long) r1;
+	__sum16 sum, *ptr;
+
+	if (unlikely(offset > 0xffff))
+		return -EFAULT;
+
+	if (skb_cloned(skb) && !skb_clone_writable(skb, offset + sizeof(sum)))
+		return -EFAULT;
+
+	ptr = skb_header_pointer(skb, offset, sizeof(sum), &sum);
+	if (unlikely(!ptr))
+		return -EFAULT;
+
+	switch (BPF_HEADER_FIELD_SIZE(flags)) {
+	case 2:
+		csum_replace2(ptr, from, to);
+		break;
+	case 4:
+		csum_replace4(ptr, from, to);
+		break;
+	default:
+		return -EINVAL;
 	}
 
-	old_fp = rcu_dereference_protected(sk->sk_filter,
-					   sock_owned_by_user(sk));
-	rcu_assign_pointer(sk->sk_filter, fp);
+	if (ptr == &sum)
+		/* skb_store_bits guaranteed to not return -EFAULT here */
+		skb_store_bits(skb, offset, ptr, sizeof(sum));
 
-	if (old_fp)
-		sk_filter_uncharge(sk, old_fp);
+	return 0;
+}
+
+const struct bpf_func_proto bpf_l3_csum_replace_proto = {
+	.func		= bpf_l3_csum_replace,
+	.gpl_only	= false,
+	.ret_type	= RET_INTEGER,
+	.arg1_type	= ARG_PTR_TO_CTX,
+	.arg2_type	= ARG_ANYTHING,
+	.arg3_type	= ARG_ANYTHING,
+	.arg4_type	= ARG_ANYTHING,
+	.arg5_type	= ARG_ANYTHING,
+};
+
+static u64 bpf_l4_csum_replace(u64 r1, u64 offset, u64 from, u64 to, u64 flags)
+{
+	struct sk_buff *skb = (struct sk_buff *) (long) r1;
+	u32 is_pseudo = BPF_IS_PSEUDO_HEADER(flags);
+	__sum16 sum, *ptr;
+
+	if (unlikely(offset > 0xffff))
+		return -EFAULT;
+
+	if (skb_cloned(skb) && !skb_clone_writable(skb, offset + sizeof(sum)))
+		return -EFAULT;
+
+	ptr = skb_header_pointer(skb, offset, sizeof(sum), &sum);
+	if (unlikely(!ptr))
+		return -EFAULT;
+
+	switch (BPF_HEADER_FIELD_SIZE(flags)) {
+	case 2:
+		inet_proto_csum_replace2(ptr, skb, from, to, is_pseudo);
+		break;
+	case 4:
+		inet_proto_csum_replace4(ptr, skb, from, to, is_pseudo);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (ptr == &sum)
+		/* skb_store_bits guaranteed to not return -EFAULT here */
+		skb_store_bits(skb, offset, ptr, sizeof(sum));
 
 	return 0;
 }
 
-/* allow socket filters to call
- * bpf_map_lookup_elem(), bpf_map_update_elem(), bpf_map_delete_elem()
- */
-static const struct bpf_func_proto *sock_filter_func_proto(enum bpf_func_id func_id)
+const struct bpf_func_proto bpf_l4_csum_replace_proto = {
+	.func		= bpf_l4_csum_replace,
+	.gpl_only	= false,
+	.ret_type	= RET_INTEGER,
+	.arg1_type	= ARG_PTR_TO_CTX,
+	.arg2_type	= ARG_ANYTHING,
+	.arg3_type	= ARG_ANYTHING,
+	.arg4_type	= ARG_ANYTHING,
+	.arg5_type	= ARG_ANYTHING,
+};
+
+static const struct bpf_func_proto *
+sk_filter_func_proto(enum bpf_func_id func_id)
 {
 	switch (func_id) {
 	case BPF_FUNC_map_lookup_elem:
@@ -1148,39 +1331,144 @@ static const struct bpf_func_proto *sock_filter_func_proto(enum bpf_func_id func
 		return &bpf_map_update_elem_proto;
 	case BPF_FUNC_map_delete_elem:
 		return &bpf_map_delete_elem_proto;
+	case BPF_FUNC_get_prandom_u32:
+		return &bpf_get_prandom_u32_proto;
+	case BPF_FUNC_get_smp_processor_id:
+		return &bpf_get_smp_processor_id_proto;
 	default:
 		return NULL;
 	}
 }
 
-static bool sock_filter_is_valid_access(int off, int size, enum bpf_access_type type)
+static const struct bpf_func_proto *
+tc_cls_act_func_proto(enum bpf_func_id func_id)
 {
-	/* skb fields cannot be accessed yet */
-	return false;
+	switch (func_id) {
+	case BPF_FUNC_skb_store_bytes:
+		return &bpf_skb_store_bytes_proto;
+	case BPF_FUNC_l3_csum_replace:
+		return &bpf_l3_csum_replace_proto;
+	case BPF_FUNC_l4_csum_replace:
+		return &bpf_l4_csum_replace_proto;
+	default:
+		return sk_filter_func_proto(func_id);
+	}
+}
+
+static bool sk_filter_is_valid_access(int off, int size,
+				      enum bpf_access_type type)
+{
+	/* only read is allowed */
+	if (type != BPF_READ)
+		return false;
+
+	/* check bounds */
+	if (off < 0 || off >= sizeof(struct __sk_buff))
+		return false;
+
+	/* disallow misaligned access */
+	if (off % size != 0)
+		return false;
+
+	/* all __sk_buff fields are __u32 */
+	if (size != 4)
+		return false;
+
+	return true;
+}
+
+static u32 sk_filter_convert_ctx_access(int dst_reg, int src_reg, int ctx_off,
+					struct bpf_insn *insn_buf)
+{
+	struct bpf_insn *insn = insn_buf;
+
+	switch (ctx_off) {
+	case offsetof(struct __sk_buff, len):
+		BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, len) != 4);
+
+		*insn++ = BPF_LDX_MEM(BPF_W, dst_reg, src_reg,
+				      offsetof(struct sk_buff, len));
+		break;
+
+	case offsetof(struct __sk_buff, protocol):
+		BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, protocol) != 2);
+
+		*insn++ = BPF_LDX_MEM(BPF_H, dst_reg, src_reg,
+				      offsetof(struct sk_buff, protocol));
+		break;
+
+	case offsetof(struct __sk_buff, vlan_proto):
+		BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, vlan_proto) != 2);
+
+		*insn++ = BPF_LDX_MEM(BPF_H, dst_reg, src_reg,
+				      offsetof(struct sk_buff, vlan_proto));
+		break;
+
+	case offsetof(struct __sk_buff, priority):
+		BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, priority) != 4);
+
+		*insn++ = BPF_LDX_MEM(BPF_W, dst_reg, src_reg,
+				      offsetof(struct sk_buff, priority));
+		break;
+
+	case offsetof(struct __sk_buff, mark):
+		return convert_skb_access(SKF_AD_MARK, dst_reg, src_reg, insn);
+
+	case offsetof(struct __sk_buff, pkt_type):
+		return convert_skb_access(SKF_AD_PKTTYPE, dst_reg, src_reg, insn);
+
+	case offsetof(struct __sk_buff, queue_mapping):
+		return convert_skb_access(SKF_AD_QUEUE, dst_reg, src_reg, insn);
+
+	case offsetof(struct __sk_buff, vlan_present):
+		return convert_skb_access(SKF_AD_VLAN_TAG_PRESENT,
+					  dst_reg, src_reg, insn);
+
+	case offsetof(struct __sk_buff, vlan_tci):
+		return convert_skb_access(SKF_AD_VLAN_TAG,
+					  dst_reg, src_reg, insn);
+	}
+
+	return insn - insn_buf;
 }
 
-static struct bpf_verifier_ops sock_filter_ops = {
-	.get_func_proto = sock_filter_func_proto,
-	.is_valid_access = sock_filter_is_valid_access,
+static const struct bpf_verifier_ops sk_filter_ops = {
+	.get_func_proto = sk_filter_func_proto,
+	.is_valid_access = sk_filter_is_valid_access,
+	.convert_ctx_access = sk_filter_convert_ctx_access,
+};
+
+static const struct bpf_verifier_ops tc_cls_act_ops = {
+	.get_func_proto = tc_cls_act_func_proto,
+	.is_valid_access = sk_filter_is_valid_access,
+	.convert_ctx_access = sk_filter_convert_ctx_access,
 };
 
-static struct bpf_prog_type_list tl = {
-	.ops = &sock_filter_ops,
+static struct bpf_prog_type_list sk_filter_type __read_mostly = {
+	.ops = &sk_filter_ops,
 	.type = BPF_PROG_TYPE_SOCKET_FILTER,
 };
 
-static int __init register_sock_filter_ops(void)
+static struct bpf_prog_type_list sched_cls_type __read_mostly = {
+	.ops = &tc_cls_act_ops,
+	.type = BPF_PROG_TYPE_SCHED_CLS,
+};
+
+static struct bpf_prog_type_list sched_act_type __read_mostly = {
+	.ops = &tc_cls_act_ops,
+	.type = BPF_PROG_TYPE_SCHED_ACT,
+};
+
+static int __init register_sk_filter_ops(void)
 {
-	bpf_register_prog_type(&tl);
+	bpf_register_prog_type(&sk_filter_type);
+	bpf_register_prog_type(&sched_cls_type);
+	bpf_register_prog_type(&sched_act_type);
+
 	return 0;
 }
-late_initcall(register_sock_filter_ops);
-#else
-int sk_attach_bpf(u32 ufd, struct sock *sk)
-{
-	return -EOPNOTSUPP;
-}
-#endif
+late_initcall(register_sk_filter_ops);
+
 int sk_detach_filter(struct sock *sk)
 {
 	int ret = -ENOENT;