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Diffstat (limited to 'net/netfilter/nft_meta.c')
-rw-r--r--net/netfilter/nft_meta.c45
1 files changed, 44 insertions, 1 deletions
diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c
index 5a60eb23a7ed..8fb91940e2e7 100644
--- a/net/netfilter/nft_meta.c
+++ b/net/netfilter/nft_meta.c
@@ -210,6 +210,11 @@ void nft_meta_get_eval(const struct nft_expr *expr,
*dest = prandom_u32_state(state);
break;
}
+#ifdef CONFIG_XFRM
+ case NFT_META_SECPATH:
+ nft_reg_store8(dest, !!skb->sp);
+ break;
+#endif
default:
WARN_ON(1);
goto err;
@@ -308,6 +313,11 @@ int nft_meta_get_init(const struct nft_ctx *ctx,
prandom_init_once(&nft_prandom_state);
len = sizeof(u32);
break;
+#ifdef CONFIG_XFRM
+ case NFT_META_SECPATH:
+ len = sizeof(u8);
+ break;
+#endif
default:
return -EOPNOTSUPP;
}
@@ -318,6 +328,38 @@ int nft_meta_get_init(const struct nft_ctx *ctx,
}
EXPORT_SYMBOL_GPL(nft_meta_get_init);
+static int nft_meta_get_validate(const struct nft_ctx *ctx,
+ const struct nft_expr *expr,
+ const struct nft_data **data)
+{
+#ifdef CONFIG_XFRM
+ const struct nft_meta *priv = nft_expr_priv(expr);
+ unsigned int hooks;
+
+ if (priv->key != NFT_META_SECPATH)
+ return 0;
+
+ switch (ctx->family) {
+ case NFPROTO_NETDEV:
+ hooks = 1 << NF_NETDEV_INGRESS;
+ break;
+ case NFPROTO_IPV4:
+ case NFPROTO_IPV6:
+ case NFPROTO_INET:
+ hooks = (1 << NF_INET_PRE_ROUTING) |
+ (1 << NF_INET_LOCAL_IN) |
+ (1 << NF_INET_FORWARD);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return nft_chain_validate_hooks(ctx->chain, hooks);
+#else
+ return 0;
+#endif
+}
+
int nft_meta_set_validate(const struct nft_ctx *ctx,
const struct nft_expr *expr,
const struct nft_data **data)
@@ -328,7 +370,7 @@ int nft_meta_set_validate(const struct nft_ctx *ctx,
if (priv->key != NFT_META_PKTTYPE)
return 0;
- switch (ctx->afi->family) {
+ switch (ctx->family) {
case NFPROTO_BRIDGE:
hooks = 1 << NF_BR_PRE_ROUTING;
break;
@@ -434,6 +476,7 @@ static const struct nft_expr_ops nft_meta_get_ops = {
.eval = nft_meta_get_eval,
.init = nft_meta_get_init,
.dump = nft_meta_get_dump,
+ .validate = nft_meta_get_validate,
};
static const struct nft_expr_ops nft_meta_set_ops = {