diff options
| author | Xin Long <lucien.xin@gmail.com> | 2023-02-07 17:52:10 -0500 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-02-10 16:23:03 -0800 |
| commit | 0785407e78d4bce56e04d92a6c961900b3d513dd (patch) | |
| tree | 9efb911dc87a0d6db5c1634a3f57d3c4d9e0b895 /net/sched/act_ct.c | |
| parent | 558d95e7e11cd9844806e804f4c1243f2c744b00 (diff) | |
net: extract nf_ct_handle_fragments to nf_conntrack_ovs
Now handle_fragments() in OVS and TC have the similar code, and
this patch removes the duplicate code by moving the function
to nf_conntrack_ovs.
Note that skb_clear_hash(skb) or skb->ignore_df = 1 should be
done only when defrag returns 0, as it does in other places
in kernel.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/sched/act_ct.c')
| -rw-r--r-- | net/sched/act_ct.c | 46 |
1 files changed, 2 insertions, 44 deletions
diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c index 9f133ed93815..9cc0bc7c71ed 100644 --- a/net/sched/act_ct.c +++ b/net/sched/act_ct.c @@ -778,49 +778,6 @@ static int tcf_ct_ipv6_is_fragment(struct sk_buff *skb, bool *frag) return 0; } -static int handle_fragments(struct net *net, struct sk_buff *skb, - u16 zone, u8 family, u16 *mru) -{ - int err; - - if (family == NFPROTO_IPV4) { - enum ip_defrag_users user = IP_DEFRAG_CONNTRACK_IN + zone; - - memset(IPCB(skb), 0, sizeof(struct inet_skb_parm)); - local_bh_disable(); - err = ip_defrag(net, skb, user); - local_bh_enable(); - if (err && err != -EINPROGRESS) - return err; - - if (!err) - *mru = IPCB(skb)->frag_max_size; - } else { /* NFPROTO_IPV6 */ -#if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6) - enum ip6_defrag_users user = IP6_DEFRAG_CONNTRACK_IN + zone; - - memset(IP6CB(skb), 0, sizeof(struct inet6_skb_parm)); - err = nf_ct_frag6_gather(net, skb, user); - if (err && err != -EINPROGRESS) - goto out_free; - - if (!err) - *mru = IP6CB(skb)->frag_max_size; -#else - err = -EOPNOTSUPP; - goto out_free; -#endif - } - - skb_clear_hash(skb); - skb->ignore_df = 1; - return err; - -out_free: - kfree_skb(skb); - return err; -} - static int tcf_ct_handle_fragments(struct net *net, struct sk_buff *skb, u8 family, u16 zone, bool *defrag) { @@ -828,6 +785,7 @@ static int tcf_ct_handle_fragments(struct net *net, struct sk_buff *skb, struct nf_conn *ct; int err = 0; bool frag; + u8 proto; u16 mru; /* Previously seen (loopback)? Ignore. */ @@ -843,7 +801,7 @@ static int tcf_ct_handle_fragments(struct net *net, struct sk_buff *skb, return err; skb_get(skb); - err = handle_fragments(net, skb, zone, family, &mru); + err = nf_ct_handle_fragments(net, skb, zone, family, &proto, &mru); if (err) return err; |