From: "Marc-André Lureau" <marcandre.lureau@redhat.com>
To: netdev@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, sgarzare@redhat.com,
davem@davemloft.net, kuba@kernel.org,
"Marc-André Lureau" <marcandre.lureau@redhat.com>
Subject: [PATCH 09/10] vhost/vsock: implement copy_peercred
Date: Thu, 21 Oct 2021 16:37:13 +0400 [thread overview]
Message-ID: <20211021123714.1125384-10-marcandre.lureau@redhat.com> (raw)
In-Reply-To: <20211021123714.1125384-1-marcandre.lureau@redhat.com>
Set the socket peercred to the vhost owner.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
drivers/vhost/vsock.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c
index 3067436cddfc..fb492c53631d 100644
--- a/drivers/vhost/vsock.c
+++ b/drivers/vhost/vsock.c
@@ -308,6 +308,27 @@ vhost_transport_send_pkt(struct virtio_vsock_pkt *pkt)
return len;
}
+static void vhost_transport_copy_peercred(struct sock *sk, struct virtio_vsock_pkt *pkt)
+{
+ struct vhost_vsock *vsock;
+
+ put_pid(sk->sk_peer_pid);
+ sk->sk_peer_pid = NULL;
+ put_cred(sk->sk_peer_cred);
+ sk->sk_peer_cred = NULL;
+
+ rcu_read_lock();
+ vsock = vhost_vsock_get(le64_to_cpu(pkt->hdr.src_cid));
+ if (!vsock)
+ goto out;
+
+ sk->sk_peer_pid = get_pid(vsock->owner_pid);
+ sk->sk_peer_cred = get_cred(vsock->owner_cred);
+
+out:
+ rcu_read_unlock();
+}
+
static int
vhost_transport_cancel_pkt(struct vsock_sock *vsk)
{
@@ -474,6 +495,7 @@ static struct virtio_transport vhost_transport = {
},
.send_pkt = vhost_transport_send_pkt,
+ .copy_peercred = vhost_transport_copy_peercred,
};
static bool vhost_transport_seqpacket_allow(u32 remote_cid)
--
2.33.0.721.g106298f7f9
next prev parent reply other threads:[~2021-10-21 12:38 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-21 12:37 [PATCH 00/10] RFC: SO_PEERCRED for AF_VSOCK Marc-André Lureau
2021-10-21 12:37 ` [PATCH 01/10] sock: move sock_init_peercred() from af_unix Marc-André Lureau
2021-10-21 12:37 ` [PATCH 02/10] sock: move sock_copy_peercred() " Marc-André Lureau
2021-10-21 12:37 ` [PATCH 03/10] vsock: owner field is specific to VMCI Marc-André Lureau
2021-10-26 11:16 ` Stefano Garzarella
2021-10-27 8:13 ` Jorgen Hansen
2021-11-05 8:21 ` Marc-André Lureau
2021-10-21 12:37 ` [PATCH 04/10] sock: add sock_swap_peercred Marc-André Lureau
2021-10-21 12:37 ` [PATCH 05/10] virtio/vsock: add copy_peercred() to virtio_transport Marc-André Lureau
2021-10-26 11:17 ` Stefano Garzarella
2021-10-21 12:37 ` [PATCH 06/10] vsock: set socket peercred Marc-André Lureau
2021-10-26 11:18 ` Stefano Garzarella
2021-10-21 12:37 ` [PATCH 07/10] vsock/loopback: implement copy_peercred() Marc-André Lureau
2021-10-26 11:18 ` Stefano Garzarella
2021-10-21 12:37 ` [PATCH 08/10] vhost/vsock: save owner pid & creds Marc-André Lureau
2021-10-21 12:37 ` Marc-André Lureau [this message]
2021-10-21 12:37 ` [PATCH 10/10] vsock/virtio: clear peer creds on connect Marc-André Lureau
2021-10-21 13:34 ` [PATCH 00/10] RFC: SO_PEERCRED for AF_VSOCK Stefano Garzarella
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