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authorPhil Sutter <phil@nwl.cc>2017-07-27 16:56:41 +0200
committerPablo Neira Ayuso <pablo@netfilter.org>2017-07-31 20:41:57 +0200
commite46abbcc05aa8a16b0e7f5c94e86d11af9aa2770 (patch)
tree8f5688c722893d30b0083365c7b01d01a03e56c0 /net/netfilter/nf_tables_trace.c
parentnetlink: Introduce nla_strdup() (diff)
downloadlinux-dev-e46abbcc05aa8a16b0e7f5c94e86d11af9aa2770.tar.xz
linux-dev-e46abbcc05aa8a16b0e7f5c94e86d11af9aa2770.zip
netfilter: nf_tables: Allow table names of up to 255 chars
Allocate all table names dynamically to allow for arbitrary lengths but introduce NFT_NAME_MAXLEN as an upper sanity boundary. It's value was chosen to allow using a domain name as per RFC 1035. Signed-off-by: Phil Sutter <phil@nwl.cc> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_tables_trace.c')
-rw-r--r--net/netfilter/nf_tables_trace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/netfilter/nf_tables_trace.c b/net/netfilter/nf_tables_trace.c
index 0c3a0049e4aa..62787d985e9d 100644
--- a/net/netfilter/nf_tables_trace.c
+++ b/net/netfilter/nf_tables_trace.c
@@ -175,7 +175,7 @@ void nft_trace_notify(struct nft_traceinfo *info)
return;
size = nlmsg_total_size(sizeof(struct nfgenmsg)) +
- nla_total_size(NFT_TABLE_MAXNAMELEN) +
+ nla_total_size(strlen(info->chain->table->name)) +
nla_total_size(NFT_CHAIN_MAXNAMELEN) +
nla_total_size_64bit(sizeof(__be64)) + /* rule handle */
nla_total_size(sizeof(__be32)) + /* trace type */