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| author | Fernando Fernandez Mancera <fmancera@suse.de> | 2026-08-19 12:24:08 +0200 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2026-09-27 21:02:20 +0200 |
| commit | a8708aa9fe1095ca7859cb3f102b6a3fa0fb98bd (patch) | |
| tree | dc86eaf3dca8d091be8060b205b9c5439f24ad93 /include | |
| parent | 014d795c73837ea2339a4ea8e8f82c6e959b845d (diff) | |
| download | linux-next-a8708aa9fe1095ca7859cb3f102b6a3fa0fb98bd.tar.gz linux-next-a8708aa9fe1095ca7859cb3f102b6a3fa0fb98bd.zip | |
netfilter: synproxy: fix reset of ct seqadj when reopening a connection
SYNPROXY is resetting conntrack seqadj when a closed connection is
re-opened, but it was using nf_ct_seqadj_init() which is a no-op for a
zero offset.
This patch introduces nf_ct_seqadj_reset() which sets the offset values
directly to zero and avoid setting IPS_SEQ_ADJUST_BIT flag, it changes
SYNPROXY code to use it when needed.
Fixes: 48b1de4c110a ("netfilter: add SYNPROXY core/target")
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/netfilter/nf_conntrack_seqadj.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_conntrack_seqadj.h b/include/net/netfilter/nf_conntrack_seqadj.h index 883c414b768e..0f5bbb14a25a 100644 --- a/include/net/netfilter/nf_conntrack_seqadj.h +++ b/include/net/netfilter/nf_conntrack_seqadj.h @@ -33,6 +33,7 @@ static inline struct nf_conn_seqadj *nfct_seqadj_ext_add(struct nf_conn *ct) int nf_ct_seqadj_init(struct nf_conn *ct, enum ip_conntrack_info ctinfo, s32 off); +void nf_ct_seqadj_reset(struct nf_conn *ct, enum ip_conntrack_info ctinfo); int nf_ct_seqadj_set(struct nf_conn *ct, enum ip_conntrack_info ctinfo, __be32 seq, s32 off); void nf_ct_tcp_seqadj_set(struct sk_buff *skb, struct nf_conn *ct, |