diff mbox series

[RFC,net-next,v6,08/14] af_vsock: add vsock_find_bound_dgram_socket()

Message ID 20240710212555.1617795-9-amery.hung@bytedance.com (mailing list archive)
State RFC
Delegated to: Netdev Maintainers
Headers show
Series virtio/vsock: support datagrams | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit fail Errors and warnings before: 821 this patch: 821
netdev/build_tools success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 1 maintainers not CCed: virtualization@lists.linux.dev
netdev/build_clang fail Errors and warnings before: 826 this patch: 826
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn fail Errors and warnings before: 826 this patch: 826
netdev/checkpatch warning WARNING: line length of 83 exceeds 80 columns
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Amery Hung July 10, 2024, 9:25 p.m. UTC 
From: Bobby Eshleman <bobby.eshleman@bytedance.com>

This commit adds vsock_find_bound_dgram_socket() which allows transports
to find bound dgram sockets in the global dgram bind table. It is
intended to be used for "routing" incoming packets to the correct
sockets if the transport uses the global bind table.

Signed-off-by: Bobby Eshleman <bobby.eshleman@bytedance.com>
---
 include/net/af_vsock.h   |  1 +
 net/vmw_vsock/af_vsock.c | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)
diff mbox series

Patch

diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h
index 6e97d344ac75..9d0882b82bfa 100644
--- a/include/net/af_vsock.h
+++ b/include/net/af_vsock.h
@@ -218,6 +218,7 @@  int vsock_assign_transport(struct vsock_sock *vsk, struct vsock_sock *psk);
 bool vsock_find_cid(unsigned int cid);
 const struct vsock_transport *vsock_dgram_lookup_transport(unsigned int cid,
 							   __u8 flags);
+struct sock *vsock_find_bound_dgram_socket(struct sockaddr_vm *addr);
 
 struct vsock_skb_cb {
 	unsigned int src_cid;
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index f83b655fdbe9..f0e5db0eb43a 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -265,6 +265,22 @@  static struct sock *vsock_find_bound_socket_common(struct sockaddr_vm *addr,
 	return NULL;
 }
 
+struct sock *
+vsock_find_bound_dgram_socket(struct sockaddr_vm *addr)
+{
+	struct sock *sk;
+
+	spin_lock_bh(&vsock_dgram_table_lock);
+	sk = vsock_find_bound_socket_common(addr, vsock_bound_dgram_sockets(addr));
+	if (sk)
+		sock_hold(sk);
+
+	spin_unlock_bh(&vsock_dgram_table_lock);
+
+	return sk;
+}
+EXPORT_SYMBOL_GPL(vsock_find_bound_dgram_socket);
+
 static struct sock *__vsock_find_bound_socket(struct sockaddr_vm *addr)
 {
 	return vsock_find_bound_socket_common(addr, vsock_bound_sockets(addr));