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authorPhil Sutter <phil@nwl.cc>2019-05-15 20:15:32 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2019-05-21 16:10:38 +0200
commite633508a95289489d28faacb68b32c3e7e68ef6f (patch)
tree20b9a690f78aad5c43b12e7569cf3e0e26a44169 /net/netfilter
parent946c0d8e6ed43dae6527e878d0077c1e11015db0 (diff)
netfilter: nft_fib: Fix existence check support
NFTA_FIB_F_PRESENT flag was not always honored since eval functions did not call nft_fib_store_result in all cases. Given that in all callsites there is a struct net_device pointer available which holds the interface data to be stored in destination register, simplify nft_fib_store_result() to just accept that pointer instead of the nft_pktinfo pointer and interface index. This also allows to drop the index to interface lookup previously needed to get the name associated with given index. Fixes: 055c4b34b94f6 ("netfilter: nft_fib: Support existence check") Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter')
-rw-r--r--net/netfilter/nft_fib.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/netfilter/nft_fib.c b/net/netfilter/nft_fib.c
index 21df8cccea65..77f00a99dfab 100644
--- a/net/netfilter/nft_fib.c
+++ b/net/netfilter/nft_fib.c
@@ -135,17 +135,17 @@ int nft_fib_dump(struct sk_buff *skb, const struct nft_expr *expr)
EXPORT_SYMBOL_GPL(nft_fib_dump);
void nft_fib_store_result(void *reg, const struct nft_fib *priv,
- const struct nft_pktinfo *pkt, int index)
+ const struct net_device *dev)
{
- struct net_device *dev;
u32 *dreg = reg;
+ int index;
switch (priv->result) {
case NFT_FIB_RESULT_OIF:
+ index = dev ? dev->ifindex : 0;
*dreg = (priv->flags & NFTA_FIB_F_PRESENT) ? !!index : index;
break;
case NFT_FIB_RESULT_OIFNAME:
- dev = dev_get_by_index_rcu(nft_net(pkt), index);
if (priv->flags & NFTA_FIB_F_PRESENT)
*dreg = !!dev;
else