On Monday 07 April 2008 15:13:44 Herbert Xu wrote:
Rusty Russell [EMAIL PROTECTED] wrote:
+/* We are done with this skb: put it in the used pile. */
+static void skb_finished(struct skb_shared_info *sinfo)
+{
+ struct skb_shinfo_tun *sht = (void *)(sinfo + 1);
+
+ /*
From: Rusty Russell [EMAIL PROTECTED]
Date: Mon, 7 Apr 2008 17:24:51 +1000
On Monday 07 April 2008 15:13:44 Herbert Xu wrote:
On second thought, this is not going to work. The network stack
can clone individual pages out of this skb and put it into a new
skb. Therefore whatever scheme we
Rusty Russell [EMAIL PROTECTED] wrote:
+/* We are done with this skb: put it in the used pile. */
+static void skb_finished(struct skb_shared_info *sinfo)
+{
+ struct skb_shinfo_tun *sht = (void *)(sinfo + 1);
+
+ /* FIXME: Race prevention */
+
This patch modifies tun to allow a vringfd to specify the send
buffer. The user does a write to push out packets from the buffer.
Again, more thought needs to be put into the possible races with ring
registration.
Again we use the 'struct virtio_net_hdr' to allow userspace to send
GSO packets.
