diff options
| author | Toke Høiland-Jørgensen <toke@redhat.com> | 2019-06-28 11:12:34 +0200 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2019-06-29 01:31:09 +0200 |
| commit | 4b55cf290dc6bd3a9e5da26d1ad60e77aa88c8cf (patch) | |
| tree | 3fd6585380801d04a61c2c364cbdee8d5f672167 /net | |
| parent | devmap/cpumap: Use flush list instead of bitmap (diff) | |
| download | linux-4b55cf290dc6bd3a9e5da26d1ad60e77aa88c8cf.tar.xz linux-4b55cf290dc6bd3a9e5da26d1ad60e77aa88c8cf.zip | |
devmap: Rename ifindex member in bpf_redirect_info
The bpf_redirect_info struct has an 'ifindex' member which was named back
when the redirects could only target egress interfaces. Now that we can
also redirect to sockets and CPUs, this is a bit misleading, so rename the
member to tgt_index.
Reorder the struct members so we can have 'tgt_index' and 'tgt_value' next
to each other in a subsequent patch.
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/filter.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/net/core/filter.c b/net/core/filter.c index 1e5fd37e9ab5..b4a062379bb9 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -2158,8 +2158,8 @@ BPF_CALL_2(bpf_redirect, u32, ifindex, u64, flags) if (unlikely(flags & ~(BPF_F_INGRESS))) return TC_ACT_SHOT; - ri->ifindex = ifindex; ri->flags = flags; + ri->tgt_index = ifindex; return TC_ACT_REDIRECT; } @@ -2169,8 +2169,8 @@ int skb_do_redirect(struct sk_buff *skb) struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info); struct net_device *dev; - dev = dev_get_by_index_rcu(dev_net(skb->dev), ri->ifindex); - ri->ifindex = 0; + dev = dev_get_by_index_rcu(dev_net(skb->dev), ri->tgt_index); + ri->tgt_index = 0; if (unlikely(!dev)) { kfree_skb(skb); return -EINVAL; @@ -3488,11 +3488,11 @@ xdp_do_redirect_slow(struct net_device *dev, struct xdp_buff *xdp, struct bpf_prog *xdp_prog, struct bpf_redirect_info *ri) { struct net_device *fwd; - u32 index = ri->ifindex; + u32 index = ri->tgt_index; int err; fwd = dev_get_by_index_rcu(dev_net(dev), index); - ri->ifindex = 0; + ri->tgt_index = 0; if (unlikely(!fwd)) { err = -EINVAL; goto err; @@ -3604,11 +3604,11 @@ static int xdp_do_redirect_map(struct net_device *dev, struct xdp_buff *xdp, struct bpf_prog *xdp_prog, struct bpf_map *map, struct bpf_redirect_info *ri) { - u32 index = ri->ifindex; + u32 index = ri->tgt_index; void *fwd = NULL; int err; - ri->ifindex = 0; + ri->tgt_index = 0; WRITE_ONCE(ri->map, NULL); fwd = __xdp_map_lookup_elem(map, index); @@ -3651,11 +3651,11 @@ static int xdp_do_generic_redirect_map(struct net_device *dev, struct bpf_map *map) { struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info); - u32 index = ri->ifindex; + u32 index = ri->tgt_index; void *fwd = NULL; int err = 0; - ri->ifindex = 0; + ri->tgt_index = 0; WRITE_ONCE(ri->map, NULL); fwd = __xdp_map_lookup_elem(map, index); @@ -3695,14 +3695,14 @@ int xdp_do_generic_redirect(struct net_device *dev, struct sk_buff *skb, { struct bpf_redirect_info *ri = this_cpu_ptr(&bpf_redirect_info); struct bpf_map *map = READ_ONCE(ri->map); - u32 index = ri->ifindex; + u32 index = ri->tgt_index; struct net_device *fwd; int err = 0; if (map) return xdp_do_generic_redirect_map(dev, skb, xdp, xdp_prog, map); - ri->ifindex = 0; + ri->tgt_index = 0; fwd = dev_get_by_index_rcu(dev_net(dev), index); if (unlikely(!fwd)) { err = -EINVAL; @@ -3730,8 +3730,8 @@ BPF_CALL_2(bpf_xdp_redirect, u32, ifindex, u64, flags) if (unlikely(flags)) return XDP_ABORTED; - ri->ifindex = ifindex; ri->flags = flags; + ri->tgt_index = ifindex; WRITE_ONCE(ri->map, NULL); return XDP_REDIRECT; @@ -3753,8 +3753,8 @@ BPF_CALL_3(bpf_xdp_redirect_map, struct bpf_map *, map, u32, ifindex, if (unlikely(flags)) return XDP_ABORTED; - ri->ifindex = ifindex; ri->flags = flags; + ri->tgt_index = ifindex; WRITE_ONCE(ri->map, map); return XDP_REDIRECT; |