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| author | Fernando Fernandez Mancera <ffmancera@riseup.net> | 2018-10-10 09:56:09 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-10-11 11:29:14 +0200 |
| commit | 4a3e71b7b7dbaf3562be9d508260935aa13cb48b (patch) | |
| tree | 05cdba11298fb4f3bc7c39abf1d36e818e01761a | |
| parent | netfilter: nft_set_rbtree: allow loose matching of closing element in interval (diff) | |
| download | linux-4a3e71b7b7dbaf3562be9d508260935aa13cb48b.tar.xz linux-4a3e71b7b7dbaf3562be9d508260935aa13cb48b.zip | |
netfilter: nft_osf: usage from output path is not valid
The nft_osf extension, like xt_osf, is not supported from the output
path.
Fixes: b96af92d6eaf ("netfilter: nf_tables: implement Passive OS fingerprint module in nft_osf")
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
| -rw-r--r-- | net/netfilter/nft_osf.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/net/netfilter/nft_osf.c b/net/netfilter/nft_osf.c index a35fb59ace73..df4e3e0412ed 100644 --- a/net/netfilter/nft_osf.c +++ b/net/netfilter/nft_osf.c @@ -69,6 +69,15 @@ nla_put_failure: return -1; } +static int nft_osf_validate(const struct nft_ctx *ctx, + const struct nft_expr *expr, + const struct nft_data **data) +{ + return nft_chain_validate_hooks(ctx->chain, (1 << NF_INET_LOCAL_IN) | + (1 << NF_INET_PRE_ROUTING) | + (1 << NF_INET_FORWARD)); +} + static struct nft_expr_type nft_osf_type; static const struct nft_expr_ops nft_osf_op = { .eval = nft_osf_eval, @@ -76,6 +85,7 @@ static const struct nft_expr_ops nft_osf_op = { .init = nft_osf_init, .dump = nft_osf_dump, .type = &nft_osf_type, + .validate = nft_osf_validate, }; static struct nft_expr_type nft_osf_type __read_mostly = { |