From: Bobby Eshleman <bobbyeshle...@meta.com>
Add support to the virtio-vsock common code for passing around net
namespace pointers (tx and rx). The series still requires vhost/virtio
transport support to be added by future patches.
Signed-off-by: Bobby Eshleman <bobbyeshle...@meta.com>
---
include/linux/virtio_vsock.h | 1 +
net/vmw_vsock/virtio_transport_common.c | 14 ++++++++++++--
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h
index c547cda7196b..ce6d15eede9c 100644
--- a/include/linux/virtio_vsock.h
+++ b/include/linux/virtio_vsock.h
@@ -184,6 +184,7 @@ struct virtio_vsock_pkt_info {
u32 remote_cid, remote_port;
struct vsock_sock *vsk;
struct msghdr *msg;
+ struct net *net;
u32 pkt_len;
u16 type;
u16 op;
diff --git a/net/vmw_vsock/virtio_transport_common.c
b/net/vmw_vsock/virtio_transport_common.c
index 9b3aa4f0395d..7b566c8f8082 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -314,6 +314,8 @@ static struct sk_buff *virtio_transport_alloc_skb(struct
virtio_vsock_pkt_info *
info->flags,
zcopy);
+ virtio_vsock_skb_set_net(skb, info->net);
+
return skb;
out:
kfree_skb(skb);
@@ -525,6 +527,7 @@ static int virtio_transport_send_credit_update(struct
vsock_sock *vsk)
struct virtio_vsock_pkt_info info = {
.op = VIRTIO_VSOCK_OP_CREDIT_UPDATE,
.vsk = vsk,
+ .net = sock_net(sk_vsock(vsk)),
};
return virtio_transport_send_pkt_info(vsk, &info);
@@ -1065,6 +1068,7 @@ int virtio_transport_connect(struct vsock_sock *vsk)
struct virtio_vsock_pkt_info info = {
.op = VIRTIO_VSOCK_OP_REQUEST,
.vsk = vsk,
+ .net = sock_net(sk_vsock(vsk)),
};
return virtio_transport_send_pkt_info(vsk, &info);
@@ -1080,6 +1084,7 @@ int virtio_transport_shutdown(struct vsock_sock *vsk, int
mode)
(mode & SEND_SHUTDOWN ?
VIRTIO_VSOCK_SHUTDOWN_SEND : 0),
.vsk = vsk,
+ .net = sock_net(sk_vsock(vsk)),
};
return virtio_transport_send_pkt_info(vsk, &info);
@@ -1106,6 +1111,7 @@ virtio_transport_stream_enqueue(struct vsock_sock *vsk,
.msg = msg,
.pkt_len = len,
.vsk = vsk,
+ .net = sock_net(sk_vsock(vsk)),
};
return virtio_transport_send_pkt_info(vsk, &info);
@@ -1143,6 +1149,7 @@ static int virtio_transport_reset(struct vsock_sock *vsk,
.op = VIRTIO_VSOCK_OP_RST,
.reply = !!skb,
.vsk = vsk,
+ .net = sock_net(sk_vsock(vsk)),
};
/* Send RST only if the original pkt is not a RST pkt */
@@ -1163,6 +1170,7 @@ static int virtio_transport_reset_no_sock(const struct
virtio_transport *t,
.op = VIRTIO_VSOCK_OP_RST,
.type = le16_to_cpu(hdr->type),
.reply = true,
+ .net = virtio_vsock_skb_net(skb),
};
struct sk_buff *reply;
@@ -1463,6 +1471,7 @@ virtio_transport_send_response(struct vsock_sock *vsk,
.remote_port = le32_to_cpu(hdr->src_port),
.reply = true,
.vsk = vsk,
+ .net = sock_net(sk_vsock(vsk)),
};
return virtio_transport_send_pkt_info(vsk, &info);
@@ -1577,6 +1586,7 @@ void virtio_transport_recv_pkt(struct virtio_transport *t,
struct sk_buff *skb)
{
struct virtio_vsock_hdr *hdr = virtio_vsock_hdr(skb);
+ struct net *net = virtio_vsock_skb_net(skb);
struct sockaddr_vm src, dst;
struct vsock_sock *vsk;
struct sock *sk;
@@ -1604,9 +1614,9 @@ void virtio_transport_recv_pkt(struct virtio_transport *t,
/* The socket must be in connected or bound table
* otherwise send reset back
*/
- sk = vsock_find_connected_socket(&src, &dst, vsock_global_dummy_net());
+ sk = vsock_find_connected_socket(&src, &dst, net);
if (!sk) {
- sk = vsock_find_bound_socket(&dst, vsock_global_dummy_net());
+ sk = vsock_find_bound_socket(&dst, net);
if (!sk) {
(void)virtio_transport_reset_no_sock(t, skb);
goto free_pkt;
--
2.47.3
