diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2022-07-23 19:17:10 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2022-07-26 16:26:19 +0200 |
| commit | bd82ea52f0ee2890b698155a6d7bf9ea5bd8930d (patch) | |
| tree | 2acfc1a26de8c172b53b937d933387b514d596ec /kernel/bpf/devmap.c | |
| parent | bbd52178e249fe893ef4a9b87cde5b6c473b0a7c (diff) | |
bpf, devmap: Compute proper xdp_frame len redirecting frames
Even if it is currently forbidden to XDP_REDIRECT a multi-frag xdp_frame into
a devmap, compute proper xdp_frame length in __xdp_enqueue and is_valid_dst
routines running xdp_get_frame_len().
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/894d99c01139e921bdb6868158ff8e67f661c072.1658596075.git.lorenzo@kernel.org
Diffstat (limited to 'kernel/bpf/devmap.c')
| -rw-r--r-- | kernel/bpf/devmap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c index 1400561efb15..a0e02b009487 100644 --- a/kernel/bpf/devmap.c +++ b/kernel/bpf/devmap.c @@ -477,7 +477,7 @@ static inline int __xdp_enqueue(struct net_device *dev, struct xdp_frame *xdpf, if (!dev->netdev_ops->ndo_xdp_xmit) return -EOPNOTSUPP; - err = xdp_ok_fwd_dev(dev, xdpf->len); + err = xdp_ok_fwd_dev(dev, xdp_get_frame_len(xdpf)); if (unlikely(err)) return err; @@ -536,7 +536,7 @@ static bool is_valid_dst(struct bpf_dtab_netdev *obj, struct xdp_frame *xdpf) !obj->dev->netdev_ops->ndo_xdp_xmit) return false; - if (xdp_ok_fwd_dev(obj->dev, xdpf->len)) + if (xdp_ok_fwd_dev(obj->dev, xdp_get_frame_len(xdpf))) return false; return true; |