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

Alexei Starovoitov says:

====================
pull-request: bpf 2019-07-25

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

The main changes are:

1) fix segfault in libbpf, from Andrii.

2) fix gso_segs access, from Eric.

3) tls/sockmap fixes, from Jakub and John.
====================

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

4 files changed, 34 insertions, 5 deletions

diff --git a/include/linux/filter.h b/include/linux/filter.h
index ff65d22cf336..92c6e31fb008 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -24,6 +24,7 @@
 
 #include <net/sch_generic.h>
 
+#include <asm/byteorder.h>
 #include <uapi/linux/filter.h>
 #include <uapi/linux/bpf.h>
 
@@ -747,6 +748,18 @@ bpf_ctx_narrow_access_ok(u32 off, u32 size, u32 size_default)
 	return size <= size_default && (size & (size - 1)) == 0;
 }
 
+static inline u8
+bpf_ctx_narrow_load_shift(u32 off, u32 size, u32 size_default)
+{
+	u8 load_off = off & (size_default - 1);
+
+#ifdef __LITTLE_ENDIAN
+	return load_off * 8;
+#else
+	return (size_default - (load_off + size)) * 8;
+#endif
+}
+
 #define bpf_ctx_wide_access_ok(off, size, type, field)			\
 	(size == sizeof(__u64) &&					\
 	off >= offsetof(type, field) &&					\
diff --git a/include/linux/skmsg.h b/include/linux/skmsg.h
index 50ced8aba9db..e4b3fb4bb77c 100644
--- a/include/linux/skmsg.h
+++ b/include/linux/skmsg.h
@@ -354,7 +354,13 @@ static inline void sk_psock_restore_proto(struct sock *sk,
 	sk->sk_write_space = psock->saved_write_space;
 
 	if (psock->sk_proto) {
-		sk->sk_prot = psock->sk_proto;
+		struct inet_connection_sock *icsk = inet_csk(sk);
+		bool has_ulp = !!icsk->icsk_ulp_data;
+
+		if (has_ulp)
+			tcp_update_ulp(sk, psock->sk_proto);
+		else
+			sk->sk_prot = psock->sk_proto;
 		psock->sk_proto = NULL;
 	}
 }
diff --git a/include/net/tcp.h b/include/net/tcp.h
index e5cf514ba118..81e8ade1e6e4 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -2108,6 +2108,8 @@ struct tcp_ulp_ops {
 
 	/* initialize ulp */
 	int (*init)(struct sock *sk);
+	/* update ulp */
+	void (*update)(struct sock *sk, struct proto *p);
 	/* cleanup ulp */
 	void (*release)(struct sock *sk);
 
@@ -2119,6 +2121,7 @@ void tcp_unregister_ulp(struct tcp_ulp_ops *type);
 int tcp_set_ulp(struct sock *sk, const char *name);
 void tcp_get_available_ulp(char *buf, size_t len);
 void tcp_cleanup_ulp(struct sock *sk);
+void tcp_update_ulp(struct sock *sk, struct proto *p);
 
 #define MODULE_ALIAS_TCP_ULP(name)				\
 	__MODULE_INFO(alias, alias_userspace, name);		\
diff --git a/include/net/tls.h b/include/net/tls.h
index 584609174fe0..9e425ac2de45 100644
--- a/include/net/tls.h
+++ b/include/net/tls.h
@@ -107,9 +107,7 @@ struct tls_device {
 enum {
 	TLS_BASE,
 	TLS_SW,
-#ifdef CONFIG_TLS_DEVICE
 	TLS_HW,
-#endif
 	TLS_HW_RECORD,
 	TLS_NUM_CONFIG,
 };
@@ -162,6 +160,7 @@ struct tls_sw_context_tx {
 	int async_capable;
 
 #define BIT_TX_SCHEDULED	0
+#define BIT_TX_CLOSING		1
 	unsigned long tx_bitmask;
 };
 
@@ -272,6 +271,8 @@ struct tls_context {
 	unsigned long flags;
 
 	/* cache cold stuff */
+	struct proto *sk_proto;
+
 	void (*sk_destruct)(struct sock *sk);
 	void (*sk_proto_close)(struct sock *sk, long timeout);
 
@@ -289,6 +290,8 @@ struct tls_context {
 
 	struct list_head list;
 	refcount_t refcount;
+
+	struct work_struct gc;
 };
 
 enum tls_offload_ctx_dir {
@@ -355,13 +358,17 @@ int tls_sk_attach(struct sock *sk, int optname, char __user *optval,
 		  unsigned int optlen);
 
 int tls_set_sw_offload(struct sock *sk, struct tls_context *ctx, int tx);
+void tls_sw_strparser_arm(struct sock *sk, struct tls_context *ctx);
+void tls_sw_strparser_done(struct tls_context *tls_ctx);
 int tls_sw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
 int tls_sw_sendpage(struct sock *sk, struct page *page,
 		    int offset, size_t size, int flags);
-void tls_sw_close(struct sock *sk, long timeout);
-void tls_sw_free_resources_tx(struct sock *sk);
+void tls_sw_cancel_work_tx(struct tls_context *tls_ctx);
+void tls_sw_release_resources_tx(struct sock *sk);
+void tls_sw_free_ctx_tx(struct tls_context *tls_ctx);
 void tls_sw_free_resources_rx(struct sock *sk);
 void tls_sw_release_resources_rx(struct sock *sk);
+void tls_sw_free_ctx_rx(struct tls_context *tls_ctx);
 int tls_sw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
 		   int nonblock, int flags, int *addr_len);
 bool tls_sw_stream_read(const struct sock *sk);