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authorBobby Eshleman <bobby.eshleman@bytedance.com>2023-03-27 22:11:51 +0300
committerDavid S. Miller <davem@davemloft.net>2023-03-29 10:19:38 +0300
commit634f1a7110b439c65fd8a809171c1d2d28bcea6f (patch)
treec177884c45da08c7552518f7215d1d6555dc2863 /include/net/af_vsock.h
parent24265c2c91ad6aae9446e18472566cd83e92b602 (diff)
downloadlinux-634f1a7110b439c65fd8a809171c1d2d28bcea6f.tar.xz
vsock: support sockmap
This patch adds sockmap support for vsock sockets. It is intended to be usable by all transports, but only the virtio and loopback transports are implemented. SOCK_STREAM, SOCK_DGRAM, and SOCK_SEQPACKET are all supported. Signed-off-by: Bobby Eshleman <bobby.eshleman@bytedance.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/af_vsock.h')
-rw-r--r--include/net/af_vsock.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h
index 568a87c5e0d0..0e7504a42925 100644
--- a/include/net/af_vsock.h
+++ b/include/net/af_vsock.h
@@ -75,6 +75,7 @@ struct vsock_sock {
void *trans;
};
+s64 vsock_connectible_has_data(struct vsock_sock *vsk);
s64 vsock_stream_has_data(struct vsock_sock *vsk);
s64 vsock_stream_has_space(struct vsock_sock *vsk);
struct sock *vsock_create_connected(struct sock *parent);
@@ -173,6 +174,9 @@ struct vsock_transport {
/* Addressing. */
u32 (*get_local_cid)(void);
+
+ /* Read a single skb */
+ int (*read_skb)(struct vsock_sock *, skb_read_actor_t);
};
/**** CORE ****/
@@ -225,5 +229,18 @@ int vsock_init_tap(void);
int vsock_add_tap(struct vsock_tap *vt);
int vsock_remove_tap(struct vsock_tap *vt);
void vsock_deliver_tap(struct sk_buff *build_skb(void *opaque), void *opaque);
+int vsock_connectible_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
+ int flags);
+int vsock_dgram_recvmsg(struct socket *sock, struct msghdr *msg,
+ size_t len, int flags);
+
+#ifdef CONFIG_BPF_SYSCALL
+extern struct proto vsock_proto;
+int vsock_bpf_update_proto(struct sock *sk, struct sk_psock *psock, bool restore);
+void __init vsock_bpf_build_proto(void);
+#else
+static inline void __init vsock_bpf_build_proto(void)
+{}
+#endif
#endif /* __AF_VSOCK_H__ */