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

Alexei Starovoitov says:

====================
pull-request: bpf-next 2019-02-16

The following pull-request contains BPF updates for your *net-next* tree.

The main changes are:

1) numerous libbpf API improvements, from Andrii, Andrey, Yonghong.

2) test all bpf progs in alu32 mode, from Jiong.

3) skb->sk access and bpf_sk_fullsock(), bpf_tcp_sock() helpers, from Martin.

4) support for IP encap in lwt bpf progs, from Peter.

5) remove XDP_QUERY_XSK_UMEM dead code, from Jan.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 47 insertions, 5 deletions

diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index bd169a7bcc93..de18227b3d95 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -194,6 +194,7 @@ enum bpf_arg_type {
 	ARG_ANYTHING,		/* any (initialized) argument is ok */
 	ARG_PTR_TO_SOCKET,	/* pointer to bpf_sock */
 	ARG_PTR_TO_SPIN_LOCK,	/* pointer to bpf_spin_lock */
+	ARG_PTR_TO_SOCK_COMMON,	/* pointer to sock_common */
 };
 
 /* type of values returned from helper functions */
@@ -203,6 +204,7 @@ enum bpf_return_type {
 	RET_PTR_TO_MAP_VALUE,		/* returns a pointer to map elem value */
 	RET_PTR_TO_MAP_VALUE_OR_NULL,	/* returns a pointer to map elem value or NULL */
 	RET_PTR_TO_SOCKET_OR_NULL,	/* returns a pointer to a socket or NULL */
+	RET_PTR_TO_TCP_SOCK_OR_NULL,	/* returns a pointer to a tcp_sock or NULL */
 };
 
 /* eBPF function prototype used by verifier to allow BPF_CALLs from eBPF programs
@@ -256,6 +258,10 @@ enum bpf_reg_type {
 	PTR_TO_FLOW_KEYS,	 /* reg points to bpf_flow_keys */
 	PTR_TO_SOCKET,		 /* reg points to struct bpf_sock */
 	PTR_TO_SOCKET_OR_NULL,	 /* reg points to struct bpf_sock or NULL */
+	PTR_TO_SOCK_COMMON,	 /* reg points to sock_common */
+	PTR_TO_SOCK_COMMON_OR_NULL, /* reg points to sock_common or NULL */
+	PTR_TO_TCP_SOCK,	 /* reg points to struct tcp_sock */
+	PTR_TO_TCP_SOCK_OR_NULL, /* reg points to struct tcp_sock or NULL */
 };
 
 /* The information passed from prog-specific *_is_valid_access
@@ -767,8 +773,9 @@ int bpf_map_offload_get_next_key(struct bpf_map *map,
 bool bpf_offload_prog_map_match(struct bpf_prog *prog, struct bpf_map *map);
 
 struct bpf_offload_dev *
-bpf_offload_dev_create(const struct bpf_prog_offload_ops *ops);
+bpf_offload_dev_create(const struct bpf_prog_offload_ops *ops, void *priv);
 void bpf_offload_dev_destroy(struct bpf_offload_dev *offdev);
+void *bpf_offload_dev_priv(struct bpf_offload_dev *offdev);
 int bpf_offload_dev_netdev_register(struct bpf_offload_dev *offdev,
 				    struct net_device *netdev);
 void bpf_offload_dev_netdev_unregister(struct bpf_offload_dev *offdev,
@@ -920,6 +927,9 @@ void bpf_user_rnd_init_once(void);
 u64 bpf_user_rnd_u32(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5);
 
 #if defined(CONFIG_NET)
+bool bpf_sock_common_is_valid_access(int off, int size,
+				     enum bpf_access_type type,
+				     struct bpf_insn_access_aux *info);
 bool bpf_sock_is_valid_access(int off, int size, enum bpf_access_type type,
 			      struct bpf_insn_access_aux *info);
 u32 bpf_sock_convert_ctx_access(enum bpf_access_type type,
@@ -928,6 +938,12 @@ u32 bpf_sock_convert_ctx_access(enum bpf_access_type type,
 				struct bpf_prog *prog,
 				u32 *target_size);
 #else
+static inline bool bpf_sock_common_is_valid_access(int off, int size,
+						   enum bpf_access_type type,
+						   struct bpf_insn_access_aux *info)
+{
+	return false;
+}
 static inline bool bpf_sock_is_valid_access(int off, int size,
 					    enum bpf_access_type type,
 					    struct bpf_insn_access_aux *info)
@@ -944,4 +960,31 @@ static inline u32 bpf_sock_convert_ctx_access(enum bpf_access_type type,
 }
 #endif
 
+#ifdef CONFIG_INET
+bool bpf_tcp_sock_is_valid_access(int off, int size, enum bpf_access_type type,
+				  struct bpf_insn_access_aux *info);
+
+u32 bpf_tcp_sock_convert_ctx_access(enum bpf_access_type type,
+				    const struct bpf_insn *si,
+				    struct bpf_insn *insn_buf,
+				    struct bpf_prog *prog,
+				    u32 *target_size);
+#else
+static inline bool bpf_tcp_sock_is_valid_access(int off, int size,
+						enum bpf_access_type type,
+						struct bpf_insn_access_aux *info)
+{
+	return false;
+}
+
+static inline u32 bpf_tcp_sock_convert_ctx_access(enum bpf_access_type type,
+						  const struct bpf_insn *si,
+						  struct bpf_insn *insn_buf,
+						  struct bpf_prog *prog,
+						  u32 *target_size)
+{
+	return 0;
+}
+#endif /* CONFIG_INET */
+
 #endif /* _LINUX_BPF_H */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 1fb733f38a47..aab4d9f6613d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -868,7 +868,6 @@ enum bpf_netdev_command {
 	/* BPF program for offload callbacks, invoked at program load time. */
 	BPF_OFFLOAD_MAP_ALLOC,
 	BPF_OFFLOAD_MAP_FREE,
-	XDP_QUERY_XSK_UMEM,
 	XDP_SETUP_XSK_UMEM,
 };
 
@@ -895,10 +894,10 @@ struct netdev_bpf {
 		struct {
 			struct bpf_offloaded_map *offmap;
 		};
-		/* XDP_QUERY_XSK_UMEM, XDP_SETUP_XSK_UMEM */
+		/* XDP_SETUP_XSK_UMEM */
 		struct {
-			struct xdp_umem *umem; /* out for query*/
-			u16 queue_id; /* in for query */
+			struct xdp_umem *umem;
+			u16 queue_id;
 		} xsk;
 	};
 };