Thread (26 messages) 26 messages, 4 authors, 2025-10-09
STALE247d

[PATCH net-next v6 2/9] vsock: add net to vsock skb cb

From: Bobby Eshleman <hidden>
Date: 2025-09-16 23:43:54
Also in: kvm, linux-hyperv, linux-kselftest, lkml, virtualization
Subsystem: the rest, virtio and vhost vsock driver, virtio core · Maintainers: Linus Torvalds, Stefan Hajnoczi, Stefano Garzarella, "Michael S. Tsirkin", Jason Wang

From: Bobby Eshleman <redacted>

Add a net pointer and orig_net_mode to the vsock skb and helpers for
getting/setting them.  This is in preparation for adding vsock NS
support.

Signed-off-by: Bobby Eshleman <redacted>

---
Changes in v5:
- some diff context change due to rebase to current net-next
---
 include/linux/virtio_vsock.h | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h
index 0c67543a45c8..ea955892488a 100644
--- a/include/linux/virtio_vsock.h
+++ b/include/linux/virtio_vsock.h
@@ -13,6 +13,8 @@ struct virtio_vsock_skb_cb {
 	bool reply;
 	bool tap_delivered;
 	u32 offset;
+	struct net *net;
+	enum vsock_net_mode orig_net_mode;
 };
 
 #define VIRTIO_VSOCK_SKB_CB(skb) ((struct virtio_vsock_skb_cb *)((skb)->cb))
@@ -130,6 +132,27 @@ static inline size_t virtio_vsock_skb_len(struct sk_buff *skb)
 	return (size_t)(skb_end_pointer(skb) - skb->head);
 }
 
+static inline struct net *virtio_vsock_skb_net(struct sk_buff *skb)
+{
+	return VIRTIO_VSOCK_SKB_CB(skb)->net;
+}
+
+static inline void virtio_vsock_skb_set_net(struct sk_buff *skb, struct net *net)
+{
+	VIRTIO_VSOCK_SKB_CB(skb)->net = net;
+}
+
+static inline enum vsock_net_mode virtio_vsock_skb_orig_net_mode(struct sk_buff *skb)
+{
+	return VIRTIO_VSOCK_SKB_CB(skb)->orig_net_mode;
+}
+
+static inline void virtio_vsock_skb_set_orig_net_mode(struct sk_buff *skb,
+						      enum vsock_net_mode orig_net_mode)
+{
+	VIRTIO_VSOCK_SKB_CB(skb)->orig_net_mode = orig_net_mode;
+}
+
 /* Dimension the RX SKB so that the entire thing fits exactly into
  * a single 4KiB page. This avoids wasting memory due to alloc_skb()
  * rounding up to the next page order and also means that we
-- 
2.47.3
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