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Code Issues Releases Wiki Activity

extensions: call send_reset with xtables state socket

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Reported-by: Minqiang Chen <ptpt52@gmail.com>
This commit is contained in:
Jan Engelhardt
2020-11-22 17:54:35 +01:00
parent a35feefa0f
commit f973577ec0
3 changed files with 16 additions and 13 deletions
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8
extensions/xt_DELUDE.c
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@@ -25,8 +25,8 @@
#include "compat_xtables.h"
#define PFX KBUILD_MODNAME ": "
static void delude_send_reset(struct net *net, struct sk_buff *oldskb,
unsigned int hook)
static void delude_send_reset(struct net *net, struct sock *sk,
struct sk_buff *oldskb, unsigned int hook)
{
struct tcphdr _otcph, *tcph;
const struct tcphdr *oth;
@@ -121,7 +121,7 @@ static void delude_send_reset(struct net *net, struct sk_buff *oldskb,
/* ip_route_me_harder expects skb->dst to be set */
skb_dst_set(nskb, dst_clone(skb_dst(oldskb)));
if (ip_route_me_harder(net, nskb->sk, nskb, addr_type))
if (ip_route_me_harder(net, sk, nskb, addr_type))
goto free_nskb;
else
niph = ip_hdr(nskb);
@@ -150,7 +150,7 @@ delude_tg(struct sk_buff *skb, const struct xt_action_param *par)
* a problem, as that is supported since Linux 2.6.35. But since we do not
* actually want to have a connection open, we are still going to drop it.
*/
delude_send_reset(par_net(par), skb, par->state->hook);
delude_send_reset(par_net(par), par->state->sk, skb, par->state->hook);
return NF_DROP;
}