diff options
Diffstat (limited to 'net/netfilter/xt_TPROXY.c')
| -rw-r--r-- | net/netfilter/xt_TPROXY.c | 38 |
1 files changed, 15 insertions, 23 deletions
diff --git a/net/netfilter/xt_TPROXY.c b/net/netfilter/xt_TPROXY.c index 194dc03341f3..e4bea1d346cf 100644 --- a/net/netfilter/xt_TPROXY.c +++ b/net/netfilter/xt_TPROXY.c @@ -74,18 +74,10 @@ tproxy_tg4(struct net *net, struct sk_buff *skb, __be32 laddr, __be16 lport, /* This should be in a separate target, but we don't do multiple targets on the same rule yet */ skb->mark = (skb->mark & ~mark_mask) ^ mark_value; - - pr_debug("redirecting: proto %hhu %pI4:%hu -> %pI4:%hu, mark: %x\n", - iph->protocol, &iph->daddr, ntohs(hp->dest), - &laddr, ntohs(lport), skb->mark); - nf_tproxy_assign_sock(skb, sk); return NF_ACCEPT; } - pr_debug("no socket, dropping: proto %hhu %pI4:%hu -> %pI4:%hu, mark: %x\n", - iph->protocol, &iph->saddr, ntohs(hp->source), - &iph->daddr, ntohs(hp->dest), skb->mark); return NF_DROP; } @@ -122,16 +114,12 @@ tproxy_tg6_v1(struct sk_buff *skb, const struct xt_action_param *par) int tproto; tproto = ipv6_find_hdr(skb, &thoff, -1, NULL, NULL); - if (tproto < 0) { - pr_debug("unable to find transport header in IPv6 packet, dropping\n"); + if (tproto < 0) return NF_DROP; - } hp = skb_header_pointer(skb, thoff, sizeof(_hdr), &_hdr); - if (hp == NULL) { - pr_debug("unable to grab transport header contents in IPv6 packet, dropping\n"); + if (!hp) return NF_DROP; - } /* check if there's an ongoing connection on the packet * addresses, this happens if the redirect already happened @@ -168,19 +156,10 @@ tproxy_tg6_v1(struct sk_buff *skb, const struct xt_action_param *par) /* This should be in a separate target, but we don't do multiple targets on the same rule yet */ skb->mark = (skb->mark & ~tgi->mark_mask) ^ tgi->mark_value; - - pr_debug("redirecting: proto %hhu %pI6:%hu -> %pI6:%hu, mark: %x\n", - tproto, &iph->saddr, ntohs(hp->source), - laddr, ntohs(lport), skb->mark); - nf_tproxy_assign_sock(skb, sk); return NF_ACCEPT; } - pr_debug("no socket, dropping: proto %hhu %pI6:%hu -> %pI6:%hu, mark: %x\n", - tproto, &iph->saddr, ntohs(hp->source), - &iph->daddr, ntohs(hp->dest), skb->mark); - return NF_DROP; } @@ -200,6 +179,11 @@ static int tproxy_tg6_check(const struct xt_tgchk_param *par) pr_info_ratelimited("Can be used only with -p tcp or -p udp\n"); return -EINVAL; } + +static void tproxy_tg6_destroy(const struct xt_tgdtor_param *par) +{ + nf_defrag_ipv6_disable(par->net); +} #endif static int tproxy_tg4_check(const struct xt_tgchk_param *par) @@ -219,6 +203,11 @@ static int tproxy_tg4_check(const struct xt_tgchk_param *par) return -EINVAL; } +static void tproxy_tg4_destroy(const struct xt_tgdtor_param *par) +{ + nf_defrag_ipv4_disable(par->net); +} + static struct xt_target tproxy_tg_reg[] __read_mostly = { { .name = "TPROXY", @@ -228,6 +217,7 @@ static struct xt_target tproxy_tg_reg[] __read_mostly = { .revision = 0, .targetsize = sizeof(struct xt_tproxy_target_info), .checkentry = tproxy_tg4_check, + .destroy = tproxy_tg4_destroy, .hooks = 1 << NF_INET_PRE_ROUTING, .me = THIS_MODULE, }, @@ -239,6 +229,7 @@ static struct xt_target tproxy_tg_reg[] __read_mostly = { .revision = 1, .targetsize = sizeof(struct xt_tproxy_target_info_v1), .checkentry = tproxy_tg4_check, + .destroy = tproxy_tg4_destroy, .hooks = 1 << NF_INET_PRE_ROUTING, .me = THIS_MODULE, }, @@ -251,6 +242,7 @@ static struct xt_target tproxy_tg_reg[] __read_mostly = { .revision = 1, .targetsize = sizeof(struct xt_tproxy_target_info_v1), .checkentry = tproxy_tg6_check, + .destroy = tproxy_tg6_destroy, .hooks = 1 << NF_INET_PRE_ROUTING, .me = THIS_MODULE, }, |