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netfilter: xtables: move extension arguments into compound structure (4/6) 

This patch does this for target extensions' target functions.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
This commit is contained in:
Jan Engelhardt 2008-10-08 11:35:19 +02:00 committed by Patrick McHardy
parent 6be3d8598e
commit 7eb3558655
42 changed files with 209 additions and 297 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
include/linux/netfilter/x_tables.h
View File

@ -218,6 +218,22 @@ struct xt_mtdtor_param {
void *matchinfo;
};
/**
* struct xt_target_param - parameters for target extensions' target functions
*
* @hooknum: hook through which this target was invoked
* @target: struct xt_target through which this function was invoked
* @targinfo: per-target data
*
* Other fields see above.
*/
struct xt_target_param {
const struct net_device *in, *out;
unsigned int hooknum;
const struct xt_target *target;
const void *targinfo;
};
struct xt_match
{
struct list_head list;
@ -269,11 +285,7 @@ struct xt_target
must now handle non-linear skbs, using skb_copy_bits and
skb_ip_make_writable. */
unsigned int (*target)(struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
unsigned int hooknum,
const struct xt_target *target,
const void *targinfo);
const struct xt_target_param *);
/* Called when user tries to insert an entry of this type:
hook_mask is a bitmask of hooks from which it can be

8
net/bridge/netfilter/ebt_arpreply.c
View File

@ -16,11 +16,9 @@
#include <linux/netfilter_bridge/ebt_arpreply.h>
static unsigned int
ebt_arpreply_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hook_nr,
const struct xt_target *target, const void *data)
ebt_arpreply_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ebt_arpreply_info *info = data;
const struct ebt_arpreply_info *info = par->targinfo;
const __be32 *siptr, *diptr;
__be32 _sip, _dip;
const struct arphdr *ap;
@ -53,7 +51,7 @@ ebt_arpreply_tg(struct sk_buff *skb, const struct net_device *in,
if (diptr == NULL)
return EBT_DROP;
arp_send(ARPOP_REPLY, ETH_P_ARP, *siptr, (struct net_device *)in,
arp_send(ARPOP_REPLY, ETH_P_ARP, *siptr, (struct net_device *)par->in,
*diptr, shp, info->mac, shp);
return info->target;

6
net/bridge/netfilter/ebt_dnat.c
View File

@ -15,11 +15,9 @@
#include <linux/netfilter_bridge/ebt_nat.h>
static unsigned int
ebt_dnat_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hook_nr,
const struct xt_target *target, const void *data)
ebt_dnat_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ebt_nat_info *info = data;
const struct ebt_nat_info *info = par->targinfo;
if (!skb_make_writable(skb, 0))
return EBT_DROP;

14
net/bridge/netfilter/ebt_log.c
View File

@ -195,11 +195,9 @@ out:
}
static unsigned int
ebt_log_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknr,
const struct xt_target *target, const void *data)
ebt_log_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ebt_log_info *info = data;
const struct ebt_log_info *info = par->targinfo;
struct nf_loginfo li;
li.type = NF_LOG_TYPE_LOG;
@ -207,11 +205,11 @@ ebt_log_tg(struct sk_buff *skb, const struct net_device *in,
li.u.log.logflags = info->bitmask;
if (info->bitmask & EBT_LOG_NFLOG)
nf_log_packet(NFPROTO_BRIDGE, hooknr, skb, in, out, &li,
"%s", info->prefix);
nf_log_packet(NFPROTO_BRIDGE, par->hooknum, skb, par->in,
par->out, &li, "%s", info->prefix);
else
ebt_log_packet(NFPROTO_BRIDGE, hooknr, skb, in, out, &li,
info->prefix);
ebt_log_packet(NFPROTO_BRIDGE, par->hooknum, skb, par->in,
par->out, &li, info->prefix);
return EBT_CONTINUE;
}

6
net/bridge/netfilter/ebt_mark.c
View File

@ -19,11 +19,9 @@
#include <linux/netfilter_bridge/ebt_mark_t.h>
static unsigned int
ebt_mark_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hook_nr,
const struct xt_target *target, const void *data)
ebt_mark_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ebt_mark_t_info *info = data;
const struct ebt_mark_t_info *info = par->targinfo;
int action = info->target & -16;
if (action == MARK_SET_VALUE)

9
net/bridge/netfilter/ebt_nflog.c
View File

@ -20,11 +20,9 @@
#include <net/netfilter/nf_log.h>
static unsigned int
ebt_nflog_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknr,
const struct xt_target *target, const void *data)
ebt_nflog_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ebt_nflog_info *info = data;
const struct ebt_nflog_info *info = par->targinfo;
struct nf_loginfo li;
li.type = NF_LOG_TYPE_ULOG;
@ -32,7 +30,8 @@ ebt_nflog_tg(struct sk_buff *skb, const struct net_device *in,
li.u.ulog.group = info->group;
li.u.ulog.qthreshold = info->threshold;
nf_log_packet(PF_BRIDGE, hooknr, skb, in, out, &li, "%s", info->prefix);
nf_log_packet(PF_BRIDGE, par->hooknum, skb, par->in, par->out,
&li, "%s", info->prefix);
return EBT_CONTINUE;
}

12
net/bridge/netfilter/ebt_redirect.c
View File

@ -16,20 +16,18 @@
#include <linux/netfilter_bridge/ebt_redirect.h>
static unsigned int
ebt_redirect_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknr,
const struct xt_target *target, const void *data)
ebt_redirect_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ebt_redirect_info *info = data;
const struct ebt_redirect_info *info = par->targinfo;
if (!skb_make_writable(skb, 0))
return EBT_DROP;
if (hooknr != NF_BR_BROUTING)
if (par->hooknum != NF_BR_BROUTING)
memcpy(eth_hdr(skb)->h_dest,
in->br_port->br->dev->dev_addr, ETH_ALEN);
par->in->br_port->br->dev->dev_addr, ETH_ALEN);
else
memcpy(eth_hdr(skb)->h_dest, in->dev_addr, ETH_ALEN);
memcpy(eth_hdr(skb)->h_dest, par->in->dev_addr, ETH_ALEN);
skb->pkt_type = PACKET_HOST;
return info->target;
}

6
net/bridge/netfilter/ebt_snat.c
View File

@ -17,11 +17,9 @@
#include <linux/netfilter_bridge/ebt_nat.h>
static unsigned int
ebt_snat_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hook_nr,
const struct xt_target *target, const void *data)
ebt_snat_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ebt_nat_info *info = data;
const struct ebt_nat_info *info = par->targinfo;
if (!skb_make_writable(skb, 0))
return EBT_DROP;

9
net/bridge/netfilter/ebt_ulog.c
View File

@ -247,13 +247,10 @@ static void ebt_log_packet(u_int8_t pf, unsigned int hooknum,
}
static unsigned int
ebt_ulog_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknr,
const struct xt_target *target, const void *data)
ebt_ulog_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ebt_ulog_info *uloginfo = data;
ebt_ulog_packet(hooknr, skb, in, out, uloginfo, NULL);
ebt_ulog_packet(par->hooknum, skb, par->in, par->out,
par->targinfo, NULL);
return EBT_CONTINUE;
}

27
net/bridge/netfilter/ebtables.c
View File

@ -64,11 +64,13 @@ static struct xt_target ebt_standard_target = {
.targetsize = sizeof(int),
};
static inline int ebt_do_watcher (struct ebt_entry_watcher *w,
struct sk_buff *skb, unsigned int hooknr, const struct net_device *in,
const struct net_device *out)
static inline int
ebt_do_watcher(const struct ebt_entry_watcher *w, struct sk_buff *skb,
struct xt_target_param *par)
{
w->u.watcher->target(skb, in, out, hooknr, w->u.watcher, w->data);
par->target = w->u.watcher;
par->targinfo = w->data;
w->u.watcher->target(skb, par);
/* watchers don't give a verdict */
return 0;
}
@ -156,10 +158,12 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
struct ebt_table_info *private;
bool hotdrop = false;
struct xt_match_param mtpar;
struct xt_target_param tgpar;
mtpar.in = in;
mtpar.out = out;
mtpar.in = tgpar.in = in;
mtpar.out = tgpar.out = out;
mtpar.hotdrop = &hotdrop;
tgpar.hooknum = hook;
read_lock_bh(&table->lock);
private = table->private;
@ -193,17 +197,18 @@ unsigned int ebt_do_table (unsigned int hook, struct sk_buff *skb,
/* these should only watch: not modify, nor tell us
what to do with the packet */
EBT_WATCHER_ITERATE(point, ebt_do_watcher, skb, hook, in,
out);
EBT_WATCHER_ITERATE(point, ebt_do_watcher, skb, &tgpar);
t = (struct ebt_entry_target *)
(((char *)point) + point->target_offset);
/* standard target */
if (!t->u.target->target)
verdict = ((struct ebt_standard_target *)t)->verdict;
else
verdict = t->u.target->target(skb, in, out, hook,
t->u.target, t->data);
else {
tgpar.target = t->u.target;
tgpar.targinfo = t->data;
verdict = t->u.target->target(skb, &tgpar);
}
if (verdict == EBT_ACCEPT) {
read_unlock_bh(&table->lock);
return NF_ACCEPT;

23
net/ipv4/netfilter/arp_tables.c
View File

@ -200,15 +200,12 @@ static inline int arp_checkentry(const struct arpt_arp *arp)
return 1;
}
static unsigned int arpt_error(struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
unsigned int hooknum,
const struct xt_target *target,
const void *targinfo)
static unsigned int
arpt_error(struct sk_buff *skb, const struct xt_target_param *par)
{
if (net_ratelimit())
printk("arp_tables: error: '%s'\n", (char *)targinfo);
printk("arp_tables: error: '%s'\n",
(const char *)par->targinfo);
return NF_DROP;
}
@ -232,6 +229,7 @@ unsigned int arpt_do_table(struct sk_buff *skb,
const char *indev, *outdev;
void *table_base;
const struct xt_table_info *private;
struct xt_target_param tgpar;
if (!pskb_may_pull(skb, arp_hdr_len(skb->dev)))
return NF_DROP;
@ -245,6 +243,10 @@ unsigned int arpt_do_table(struct sk_buff *skb,
e = get_entry(table_base, private->hook_entry[hook]);
back = get_entry(table_base, private->underflow[hook]);
tgpar.in = in;
tgpar.out = out;
tgpar.hooknum = hook;
arp = arp_hdr(skb);
do {
if (arp_packet_match(arp, skb->dev, indev, outdev, &e->arp)) {
@ -290,11 +292,10 @@ unsigned int arpt_do_table(struct sk_buff *skb,
/* Targets which reenter must return
* abs. verdicts
*/
tgpar.target = t->u.kernel.target;
tgpar.targinfo = t->data;
verdict = t->u.kernel.target->target(skb,
in, out,
hook,
t->u.kernel.target,
t->data);
&tgpar);
/* Target might have changed stuff. */
arp = arp_hdr(skb);

7
net/ipv4/netfilter/arpt_mangle.c
View File

@ -9,12 +9,9 @@ MODULE_AUTHOR("Bart De Schuymer <bdschuym@pandora.be>");
MODULE_DESCRIPTION("arptables arp payload mangle target");
static unsigned int
target(struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
unsigned int hooknum, const struct xt_target *target,
const void *targinfo)
target(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct arpt_mangle *mangle = targinfo;
const struct arpt_mangle *mangle = par->targinfo;
const struct arphdr *arp;
unsigned char *arpptr;
int pln, hln;

24
net/ipv4/netfilter/ip_tables.c
View File

@ -171,15 +171,11 @@ ip_checkentry(const struct ipt_ip *ip)
}
static unsigned int
ipt_error(struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
unsigned int hooknum,
const struct xt_target *target,
const void *targinfo)
ipt_error(struct sk_buff *skb, const struct xt_target_param *par)
{
if (net_ratelimit())
printk("ip_tables: error: `%s'\n", (char *)targinfo);
printk("ip_tables: error: `%s'\n",
(const char *)par->targinfo);
return NF_DROP;
}
@ -334,6 +330,7 @@ ipt_do_table(struct sk_buff *skb,
struct ipt_entry *e, *back;
struct xt_table_info *private;
struct xt_match_param mtpar;
struct xt_target_param tgpar;
/* Initialization */
ip = ip_hdr(skb);
@ -349,8 +346,9 @@ ipt_do_table(struct sk_buff *skb,
mtpar.fragoff = ntohs(ip->frag_off) & IP_OFFSET;
mtpar.thoff = ip_hdrlen(skb);
mtpar.hotdrop = &hotdrop;
mtpar.in = in;
mtpar.out = out;
mtpar.in = tgpar.in = in;
mtpar.out = tgpar.out = out;
tgpar.hooknum = hook;
read_lock_bh(&table->lock);
IP_NF_ASSERT(table->valid_hooks & (1 << hook));
@ -414,16 +412,14 @@ ipt_do_table(struct sk_buff *skb,
} else {
/* Targets which reenter must return
abs. verdicts */
tgpar.target = t->u.kernel.target;
tgpar.targinfo = t->data;
#ifdef CONFIG_NETFILTER_DEBUG
((struct ipt_entry *)table_base)->comefrom
= 0xeeeeeeec;
#endif
verdict = t->u.kernel.target->target(skb,
in, out,
hook,
t->u.kernel.target,
t->data);
&tgpar);
#ifdef CONFIG_NETFILTER_DEBUG
if (((struct ipt_entry *)table_base)->comefrom
!= 0xeeeeeeec

6
net/ipv4/netfilter/ipt_CLUSTERIP.c
View File

@ -281,11 +281,9 @@ clusterip_responsible(const struct clusterip_config *config, u_int32_t hash)
***********************************************************************/
static unsigned int
clusterip_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
clusterip_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ipt_clusterip_tgt_info *cipinfo = targinfo;
const struct ipt_clusterip_tgt_info *cipinfo = par->targinfo;
struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
u_int32_t hash;

6
net/ipv4/netfilter/ipt_ECN.c
View File

@ -77,11 +77,9 @@ set_ect_tcp(struct sk_buff *skb, const struct ipt_ECN_info *einfo)
}
static unsigned int
ecn_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
ecn_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ipt_ECN_info *einfo = targinfo;
const struct ipt_ECN_info *einfo = par->targinfo;
if (einfo->operation & IPT_ECN_OP_SET_IP)
if (!set_ect_ip(skb, einfo))

8
net/ipv4/netfilter/ipt_LOG.c
View File

@ -426,18 +426,16 @@ ipt_log_packet(u_int8_t pf,
}
static unsigned int
log_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
log_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ipt_log_info *loginfo = targinfo;
const struct ipt_log_info *loginfo = par->targinfo;
struct nf_loginfo li;
li.type = NF_LOG_TYPE_LOG;
li.u.log.level = loginfo->level;
li.u.log.logflags = loginfo->logflags;
ipt_log_packet(NFPROTO_IPV4, hooknum, skb, in, out, &li,
ipt_log_packet(NFPROTO_IPV4, par->hooknum, skb, par->in, par->out, &li,
loginfo->prefix);
return XT_CONTINUE;
}

14
net/ipv4/netfilter/ipt_MASQUERADE.c
View File

@ -50,9 +50,7 @@ masquerade_tg_check(const char *tablename, const void *e,
}
static unsigned int
masquerade_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
masquerade_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
struct nf_conn *ct;
struct nf_conn_nat *nat;
@ -62,7 +60,7 @@ masquerade_tg(struct sk_buff *skb, const struct net_device *in,
const struct rtable *rt;
__be32 newsrc;
NF_CT_ASSERT(hooknum == NF_INET_POST_ROUTING);
NF_CT_ASSERT(par->hooknum == NF_INET_POST_ROUTING);
ct = nf_ct_get(skb, &ctinfo);
nat = nfct_nat(ct);
@ -76,16 +74,16 @@ masquerade_tg(struct sk_buff *skb, const struct net_device *in,
if (ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip == 0)
return NF_ACCEPT;
mr = targinfo;
mr = par->targinfo;
rt = skb->rtable;
newsrc = inet_select_addr(out, rt->rt_gateway, RT_SCOPE_UNIVERSE);
newsrc = inet_select_addr(par->out, rt->rt_gateway, RT_SCOPE_UNIVERSE);
if (!newsrc) {
printk("MASQUERADE: %s ate my IP address\n", out->name);
printk("MASQUERADE: %s ate my IP address\n", par->out->name);
return NF_DROP;
}
write_lock_bh(&masq_lock);
nat->masq_index = out->ifindex;
nat->masq_index = par->out->ifindex;
write_unlock_bh(&masq_lock);
/* Transfer from original range. */

17
net/ipv4/netfilter/ipt_NETMAP.c
View File

@ -41,24 +41,23 @@ netmap_tg_check(const char *tablename, const void *e,
}
static unsigned int
netmap_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
netmap_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
__be32 new_ip, netmask;
const struct nf_nat_multi_range_compat *mr = targinfo;
const struct nf_nat_multi_range_compat *mr = par->targinfo;
struct nf_nat_range newrange;
NF_CT_ASSERT(hooknum == NF_INET_PRE_ROUTING
|| hooknum == NF_INET_POST_ROUTING
|| hooknum == NF_INET_LOCAL_OUT);
NF_CT_ASSERT(par->hooknum == NF_INET_PRE_ROUTING ||
par->hooknum == NF_INET_POST_ROUTING ||
par->hooknum == NF_INET_LOCAL_OUT);
ct = nf_ct_get(skb, &ctinfo);
netmask = ~(mr->range[0].min_ip ^ mr->range[0].max_ip);
if (hooknum == NF_INET_PRE_ROUTING || hooknum == NF_INET_LOCAL_OUT)
if (par->hooknum == NF_INET_PRE_ROUTING ||
par->hooknum == NF_INET_LOCAL_OUT)
new_ip = ip_hdr(skb)->daddr & ~netmask;
else
new_ip = ip_hdr(skb)->saddr & ~netmask;
@ -70,7 +69,7 @@ netmap_tg(struct sk_buff *skb, const struct net_device *in,
mr->range[0].min, mr->range[0].max });
/* Hand modified range to generic setup. */
return nf_nat_setup_info(ct, &newrange, HOOK2MANIP(hooknum));
return nf_nat_setup_info(ct, &newrange, HOOK2MANIP(par->hooknum));
}
static struct xt_target netmap_tg_reg __read_mostly = {

12
net/ipv4/netfilter/ipt_REDIRECT.c
View File

@ -45,24 +45,22 @@ redirect_tg_check(const char *tablename, const void *e,
}
static unsigned int
redirect_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
redirect_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
__be32 newdst;
const struct nf_nat_multi_range_compat *mr = targinfo;
const struct nf_nat_multi_range_compat *mr = par->targinfo;
struct nf_nat_range newrange;
NF_CT_ASSERT(hooknum == NF_INET_PRE_ROUTING
|| hooknum == NF_INET_LOCAL_OUT);
NF_CT_ASSERT(par->hooknum == NF_INET_PRE_ROUTING ||
par->hooknum == NF_INET_LOCAL_OUT);
ct = nf_ct_get(skb, &ctinfo);
NF_CT_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED));
/* Local packets: make them go to loopback */
if (hooknum == NF_INET_LOCAL_OUT)
if (par->hooknum == NF_INET_LOCAL_OUT)
newdst = htonl(0x7F000001);
else {
struct in_device *indev;

8
net/ipv4/netfilter/ipt_REJECT.c
View File

@ -136,11 +136,9 @@ static inline void send_unreach(struct sk_buff *skb_in, int code)
}
static unsigned int
reject_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
reject_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ipt_reject_info *reject = targinfo;
const struct ipt_reject_info *reject = par->targinfo;
/* WARNING: This code causes reentry within iptables.
This means that the iptables jump stack is now crap. We
@ -168,7 +166,7 @@ reject_tg(struct sk_buff *skb, const struct net_device *in,
send_unreach(skb, ICMP_PKT_FILTERED);
break;
case IPT_TCP_RESET:
send_reset(skb, hooknum);
send_reset(skb, par->hooknum);
case IPT_ICMP_ECHOREPLY:
/* Doesn't happen. */
break;

6
net/ipv4/netfilter/ipt_TTL.c
View File

@ -20,12 +20,10 @@ MODULE_DESCRIPTION("Xtables: IPv4 TTL field modification target");
MODULE_LICENSE("GPL");
static unsigned int
ttl_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
ttl_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
struct iphdr *iph;
const struct ipt_TTL_info *info = targinfo;
const struct ipt_TTL_info *info = par->targinfo;
int new_ttl;
if (!skb_make_writable(skb, skb->len))

10
net/ipv4/netfilter/ipt_ULOG.c
View File

@ -281,14 +281,10 @@ alloc_failure:
}
static unsigned int
ulog_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
ulog_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
struct ipt_ulog_info *loginfo = (struct ipt_ulog_info *) targinfo;
ipt_ulog_packet(hooknum, skb, in, out, loginfo, NULL);
ipt_ulog_packet(par->hooknum, skb, par->in, par->out,
par->targinfo, NULL);
return XT_CONTINUE;
}

32
net/ipv4/netfilter/nf_nat_rule.c
View File

@ -67,25 +67,21 @@ static struct xt_table nat_table = {
};
/* Source NAT */
static unsigned int ipt_snat_target(struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
unsigned int hooknum,
const struct xt_target *target,
const void *targinfo)
static unsigned int
ipt_snat_target(struct sk_buff *skb, const struct xt_target_param *par)
{
struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
const struct nf_nat_multi_range_compat *mr = targinfo;
const struct nf_nat_multi_range_compat *mr = par->targinfo;
NF_CT_ASSERT(hooknum == NF_INET_POST_ROUTING);
NF_CT_ASSERT(par->hooknum == NF_INET_POST_ROUTING);
ct = nf_ct_get(skb, &ctinfo);
/* Connection must be valid and new. */
NF_CT_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED ||
ctinfo == IP_CT_RELATED + IP_CT_IS_REPLY));
NF_CT_ASSERT(out);
NF_CT_ASSERT(par->out != NULL);
return nf_nat_setup_info(ct, &mr->range[0], IP_NAT_MANIP_SRC);
}
@ -109,28 +105,24 @@ static void warn_if_extra_mangle(struct net *net, __be32 dstip, __be32 srcip)
ip_rt_put(rt);
}
static unsigned int ipt_dnat_target(struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
unsigned int hooknum,
const struct xt_target *target,
const void *targinfo)
static unsigned int
ipt_dnat_target(struct sk_buff *skb, const struct xt_target_param *par)
{
struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
const struct nf_nat_multi_range_compat *mr = targinfo;
const struct nf_nat_multi_range_compat *mr = par->targinfo;
NF_CT_ASSERT(hooknum == NF_INET_PRE_ROUTING ||
hooknum == NF_INET_LOCAL_OUT);
NF_CT_ASSERT(par->hooknum == NF_INET_PRE_ROUTING ||
par->hooknum == NF_INET_LOCAL_OUT);
ct = nf_ct_get(skb, &ctinfo);
/* Connection must be valid and new. */
NF_CT_ASSERT(ct && (ctinfo == IP_CT_NEW || ctinfo == IP_CT_RELATED));
if (hooknum == NF_INET_LOCAL_OUT &&
if (par->hooknum == NF_INET_LOCAL_OUT &&
mr->range[0].flags & IP_NAT_RANGE_MAP_IPS)
warn_if_extra_mangle(dev_net(out), ip_hdr(skb)->daddr,
warn_if_extra_mangle(dev_net(par->out), ip_hdr(skb)->daddr,
mr->range[0].min_ip);
return nf_nat_setup_info(ct, &mr->range[0], IP_NAT_MANIP_DST);

24
net/ipv6/netfilter/ip6_tables.c
View File

@ -200,15 +200,11 @@ ip6_checkentry(const struct ip6t_ip6 *ipv6)
}
static unsigned int
ip6t_error(struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
unsigned int hooknum,
const struct xt_target *target,
const void *targinfo)
ip6t_error(struct sk_buff *skb, const struct xt_target_param *par)
{
if (net_ratelimit())
printk("ip6_tables: error: `%s'\n", (char *)targinfo);
printk("ip6_tables: error: `%s'\n",
(const char *)par->targinfo);
return NF_DROP;
}
@ -360,6 +356,7 @@ ip6t_do_table(struct sk_buff *skb,
struct ip6t_entry *e, *back;
struct xt_table_info *private;
struct xt_match_param mtpar;
struct xt_target_param tgpar;
/* Initialization */
indev = in ? in->name : nulldevname;
@ -371,8 +368,9 @@ ip6t_do_table(struct sk_buff *skb,
* rule is also a fragment-specific rule, non-fragments won't
* match it. */
mtpar.hotdrop = &hotdrop;
mtpar.in = in;
mtpar.out = out;
mtpar.in = tgpar.in = in;
mtpar.out = tgpar.out = out;
tgpar.hooknum = hook;
read_lock_bh(&table->lock);
IP_NF_ASSERT(table->valid_hooks & (1 << hook));
@ -438,15 +436,15 @@ ip6t_do_table(struct sk_buff *skb,
} else {
/* Targets which reenter must return
abs. verdicts */
tgpar.target = t->u.kernel.target;
tgpar.targinfo = t->data;
#ifdef CONFIG_NETFILTER_DEBUG
((struct ip6t_entry *)table_base)->comefrom
= 0xeeeeeeec;
#endif
verdict = t->u.kernel.target->target(skb,
in, out,
hook,
t->u.kernel.target,
t->data);
&tgpar);
#ifdef CONFIG_NETFILTER_DEBUG
if (((struct ip6t_entry *)table_base)->comefrom

6
net/ipv6/netfilter/ip6t_HL.c
View File

@ -19,12 +19,10 @@ MODULE_DESCRIPTION("Xtables: IPv6 Hop Limit field modification target");
MODULE_LICENSE("GPL");
static unsigned int
hl_tg6(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
hl_tg6(struct sk_buff *skb, const struct xt_target_param *par)
{
struct ipv6hdr *ip6h;
const struct ip6t_HL_info *info = targinfo;
const struct ip6t_HL_info *info = par->targinfo;
int new_hl;
if (!skb_make_writable(skb, skb->len))

8
net/ipv6/netfilter/ip6t_LOG.c
View File

@ -438,18 +438,16 @@ ip6t_log_packet(u_int8_t pf,
}
static unsigned int
log_tg6(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
log_tg6(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ip6t_log_info *loginfo = targinfo;
const struct ip6t_log_info *loginfo = par->targinfo;
struct nf_loginfo li;
li.type = NF_LOG_TYPE_LOG;
li.u.log.level = loginfo->level;
li.u.log.logflags = loginfo->logflags;
ip6t_log_packet(NFPROTO_IPV6, hooknum, skb, in, out,
ip6t_log_packet(NFPROTO_IPV6, par->hooknum, skb, par->in, par->out,
&li, loginfo->prefix);
return XT_CONTINUE;
}

18
net/ipv6/netfilter/ip6t_REJECT.c
View File

@ -173,12 +173,10 @@ send_unreach(struct net *net, struct sk_buff *skb_in, unsigned char code,
}
static unsigned int
reject_tg6(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
reject_tg6(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ip6t_reject_info *reject = targinfo;
struct net *net = dev_net(in ? in : out);
const struct ip6t_reject_info *reject = par->targinfo;
struct net *net = dev_net((par->in != NULL) ? par->in : par->out);
pr_debug("%s: medium point\n", __func__);
/* WARNING: This code causes reentry within ip6tables.
@ -186,19 +184,19 @@ reject_tg6(struct sk_buff *skb, const struct net_device *in,
must return an absolute verdict. --RR */
switch (reject->with) {
case IP6T_ICMP6_NO_ROUTE:
send_unreach(net, skb, ICMPV6_NOROUTE, hooknum);
send_unreach(net, skb, ICMPV6_NOROUTE, par->hooknum);
break;
case IP6T_ICMP6_ADM_PROHIBITED:
send_unreach(net, skb, ICMPV6_ADM_PROHIBITED, hooknum);
send_unreach(net, skb, ICMPV6_ADM_PROHIBITED, par->hooknum);
break;
case IP6T_ICMP6_NOT_NEIGHBOUR:
send_unreach(net, skb, ICMPV6_NOT_NEIGHBOUR, hooknum);
send_unreach(net, skb, ICMPV6_NOT_NEIGHBOUR, par->hooknum);
break;
case IP6T_ICMP6_ADDR_UNREACH:
send_unreach(net, skb, ICMPV6_ADDR_UNREACH, hooknum);
send_unreach(net, skb, ICMPV6_ADDR_UNREACH, par->hooknum);
break;
case IP6T_ICMP6_PORT_UNREACH:
send_unreach(net, skb, ICMPV6_PORT_UNREACH, hooknum);
send_unreach(net, skb, ICMPV6_PORT_UNREACH, par->hooknum);
break;
case IP6T_ICMP6_ECHOREPLY:
/* Do nothing */

6
net/netfilter/xt_CLASSIFY.c
View File

@ -27,11 +27,9 @@ MODULE_ALIAS("ipt_CLASSIFY");
MODULE_ALIAS("ip6t_CLASSIFY");
static unsigned int
classify_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
classify_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_classify_target_info *clinfo = targinfo;
const struct xt_classify_target_info *clinfo = par->targinfo;
skb->priority = clinfo->priority;
return XT_CONTINUE;

12
net/netfilter/xt_CONNMARK.c
View File

@ -36,11 +36,9 @@ MODULE_ALIAS("ip6t_CONNMARK");
#include <net/netfilter/nf_conntrack_ecache.h>
static unsigned int
connmark_tg_v0(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
connmark_tg_v0(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_connmark_target_info *markinfo = targinfo;
const struct xt_connmark_target_info *markinfo = par->targinfo;
struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
u_int32_t diff;
@ -77,11 +75,9 @@ connmark_tg_v0(struct sk_buff *skb, const struct net_device *in,
}
static unsigned int
connmark_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
connmark_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_connmark_tginfo1 *info = targinfo;
const struct xt_connmark_tginfo1 *info = par->targinfo;
enum ip_conntrack_info ctinfo;
struct nf_conn *ct;
u_int32_t newmark;

6
net/netfilter/xt_CONNSECMARK.c
View File

@ -65,11 +65,9 @@ static void secmark_restore(struct sk_buff *skb)
}
static unsigned int
connsecmark_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
connsecmark_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_connsecmark_target_info *info = targinfo;
const struct xt_connsecmark_target_info *info = par->targinfo;
switch (info->mode) {
case CONNSECMARK_SAVE:

30
net/netfilter/xt_DSCP.c
View File

@ -29,11 +29,9 @@ MODULE_ALIAS("ipt_TOS");
MODULE_ALIAS("ip6t_TOS");
static unsigned int
dscp_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
dscp_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_DSCP_info *dinfo = targinfo;
const struct xt_DSCP_info *dinfo = par->targinfo;
u_int8_t dscp = ipv4_get_dsfield(ip_hdr(skb)) >> XT_DSCP_SHIFT;
if (dscp != dinfo->dscp) {
@ -48,11 +46,9 @@ dscp_tg(struct sk_buff *skb, const struct net_device *in,
}
static unsigned int
dscp_tg6(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
dscp_tg6(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_DSCP_info *dinfo = targinfo;
const struct xt_DSCP_info *dinfo = par->targinfo;
u_int8_t dscp = ipv6_get_dsfield(ipv6_hdr(skb)) >> XT_DSCP_SHIFT;
if (dscp != dinfo->dscp) {
@ -80,11 +76,9 @@ dscp_tg_check(const char *tablename, const void *e_void,
}
static unsigned int
tos_tg_v0(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
tos_tg_v0(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct ipt_tos_target_info *info = targinfo;
const struct ipt_tos_target_info *info = par->targinfo;
struct iphdr *iph = ip_hdr(skb);
u_int8_t oldtos;
@ -119,11 +113,9 @@ tos_tg_check_v0(const char *tablename, const void *e_void,
}
static unsigned int
tos_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
tos_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_tos_target_info *info = targinfo;
const struct xt_tos_target_info *info = par->targinfo;
struct iphdr *iph = ip_hdr(skb);
u_int8_t orig, nv;
@ -141,11 +133,9 @@ tos_tg(struct sk_buff *skb, const struct net_device *in,
}
static unsigned int
tos_tg6(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
tos_tg6(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_tos_target_info *info = targinfo;
const struct xt_tos_target_info *info = par->targinfo;
struct ipv6hdr *iph = ipv6_hdr(skb);
u_int8_t orig, nv;

18
net/netfilter/xt_MARK.c
View File

@ -25,22 +25,18 @@ MODULE_ALIAS("ipt_MARK");
MODULE_ALIAS("ip6t_MARK");
static unsigned int
mark_tg_v0(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
mark_tg_v0(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_mark_target_info *markinfo = targinfo;
const struct xt_mark_target_info *markinfo = par->targinfo;
skb->mark = markinfo->mark;
return XT_CONTINUE;
}
static unsigned int
mark_tg_v1(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
mark_tg_v1(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_mark_target_info_v1 *markinfo = targinfo;
const struct xt_mark_target_info_v1 *markinfo = par->targinfo;
int mark = 0;
switch (markinfo->mode) {
@ -62,11 +58,9 @@ mark_tg_v1(struct sk_buff *skb, const struct net_device *in,
}
static unsigned int
mark_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
mark_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_mark_tginfo2 *info = targinfo;
const struct xt_mark_tginfo2 *info = par->targinfo;
skb->mark = (skb->mark & ~info->mask) ^ info->mark;
return XT_CONTINUE;

10
net/netfilter/xt_NFLOG.c
View File

@ -21,11 +21,9 @@ MODULE_ALIAS("ipt_NFLOG");
MODULE_ALIAS("ip6t_NFLOG");
static unsigned int
nflog_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
nflog_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_nflog_info *info = targinfo;
const struct xt_nflog_info *info = par->targinfo;
struct nf_loginfo li;
li.type = NF_LOG_TYPE_ULOG;
@ -33,8 +31,8 @@ nflog_tg(struct sk_buff *skb, const struct net_device *in,
li.u.ulog.group = info->group;
li.u.ulog.qthreshold = info->threshold;
nf_log_packet(target->family, hooknum, skb, in, out, &li,
"%s", info->prefix);
nf_log_packet(par->target->family, par->hooknum, skb, par->in,
par->out, &li, "%s", info->prefix);
return XT_CONTINUE;
}

6
net/netfilter/xt_NFQUEUE.c
View File

@ -24,11 +24,9 @@ MODULE_ALIAS("ip6t_NFQUEUE");
MODULE_ALIAS("arpt_NFQUEUE");
static unsigned int
nfqueue_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
nfqueue_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_NFQ_info *tinfo = targinfo;
const struct xt_NFQ_info *tinfo = par->targinfo;
return NF_QUEUE_NR(tinfo->queuenum);
}

4
net/netfilter/xt_NOTRACK.c
View File

@ -13,9 +13,7 @@ MODULE_ALIAS("ipt_NOTRACK");
MODULE_ALIAS("ip6t_NOTRACK");
static unsigned int
notrack_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
notrack_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
/* Previously seen (loopback)? Ignore. */
if (skb->nfct != NULL)

9
net/netfilter/xt_RATEEST.c
View File

@ -71,14 +71,9 @@ void xt_rateest_put(struct xt_rateest *est)
EXPORT_SYMBOL_GPL(xt_rateest_put);
static unsigned int
xt_rateest_tg(struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
unsigned int hooknum,
const struct xt_target *target,
const void *targinfo)
xt_rateest_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct xt_rateest_target_info *info = targinfo;
const struct xt_rateest_target_info *info = par->targinfo;
struct gnet_stats_basic *stats = &info->est->bstats;
spin_lock_bh(&info->est->lock);

6
net/netfilter/xt_SECMARK.c
View File

@ -29,12 +29,10 @@ MODULE_ALIAS("ip6t_SECMARK");
static u8 mode;
static unsigned int
secmark_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
secmark_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
u32 secmark = 0;
const struct xt_secmark_target_info *info = targinfo;
const struct xt_secmark_target_info *info = par->targinfo;
BUG_ON(info->mode != mode);

12
net/netfilter/xt_TCPMSS.c
View File

@ -174,15 +174,13 @@ static u_int32_t tcpmss_reverse_mtu(const struct sk_buff *skb,
}
static unsigned int
tcpmss_tg4(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
tcpmss_tg4(struct sk_buff *skb, const struct xt_target_param *par)
{
struct iphdr *iph = ip_hdr(skb);
__be16 newlen;
int ret;
ret = tcpmss_mangle_packet(skb, targinfo,
ret = tcpmss_mangle_packet(skb, par->targinfo,
tcpmss_reverse_mtu(skb, PF_INET),
iph->ihl * 4,
sizeof(*iph) + sizeof(struct tcphdr));
@ -199,9 +197,7 @@ tcpmss_tg4(struct sk_buff *skb, const struct net_device *in,
#if defined(CONFIG_IP6_NF_IPTABLES) || defined(CONFIG_IP6_NF_IPTABLES_MODULE)
static unsigned int
tcpmss_tg6(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
tcpmss_tg6(struct sk_buff *skb, const struct xt_target_param *par)
{
struct ipv6hdr *ipv6h = ipv6_hdr(skb);
u8 nexthdr;
@ -212,7 +208,7 @@ tcpmss_tg6(struct sk_buff *skb, const struct net_device *in,
tcphoff = ipv6_skip_exthdr(skb, sizeof(*ipv6h), &nexthdr);
if (tcphoff < 0)
return NF_DROP;
ret = tcpmss_mangle_packet(skb, targinfo,
ret = tcpmss_mangle_packet(skb, par->targinfo,
tcpmss_reverse_mtu(skb, PF_INET6),
tcphoff,
sizeof(*ipv6h) + sizeof(struct tcphdr));

12
net/netfilter/xt_TCPOPTSTRIP.c
View File

@ -75,19 +75,15 @@ tcpoptstrip_mangle_packet(struct sk_buff *skb,
}
static unsigned int
tcpoptstrip_tg4(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
tcpoptstrip_tg4(struct sk_buff *skb, const struct xt_target_param *par)
{
return tcpoptstrip_mangle_packet(skb, targinfo, ip_hdrlen(skb),
return tcpoptstrip_mangle_packet(skb, par->targinfo, ip_hdrlen(skb),
sizeof(struct iphdr) + sizeof(struct tcphdr));
}
#if defined(CONFIG_IP6_NF_MANGLE) || defined(CONFIG_IP6_NF_MANGLE_MODULE)
static unsigned int
tcpoptstrip_tg6(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
tcpoptstrip_tg6(struct sk_buff *skb, const struct xt_target_param *par)
{
struct ipv6hdr *ipv6h = ipv6_hdr(skb);
int tcphoff;
@ -98,7 +94,7 @@ tcpoptstrip_tg6(struct sk_buff *skb, const struct net_device *in,
if (tcphoff < 0)
return NF_DROP;
return tcpoptstrip_mangle_packet(skb, targinfo, tcphoff,
return tcpoptstrip_mangle_packet(skb, par->targinfo, tcphoff,
sizeof(*ipv6h) + sizeof(struct tcphdr));
}
#endif

11
net/netfilter/xt_TPROXY.c
View File

@ -25,15 +25,10 @@
#include <net/netfilter/nf_tproxy_core.h>
static unsigned int
tproxy_tg(struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
unsigned int hooknum,
const struct xt_target *target,
const void *targinfo)
tproxy_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
const struct iphdr *iph = ip_hdr(skb);
const struct xt_tproxy_target_info *tgi = targinfo;
const struct xt_tproxy_target_info *tgi = par->targinfo;
struct udphdr _hdr, *hp;
struct sock *sk;
@ -44,7 +39,7 @@ tproxy_tg(struct sk_buff *skb,
sk = nf_tproxy_get_sock_v4(dev_net(skb->dev), iph->protocol,
iph->saddr, tgi->laddr ? tgi->laddr : iph->daddr,
hp->source, tgi->lport ? tgi->lport : hp->dest,
in, true);
par->in, true);
/* NOTE: assign_sock consumes our sk reference */
if (sk && nf_tproxy_assign_sock(skb, sk)) {

4
net/netfilter/xt_TRACE.c
View File

@ -11,9 +11,7 @@ MODULE_ALIAS("ipt_TRACE");
MODULE_ALIAS("ip6t_TRACE");
static unsigned int
trace_tg(struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, unsigned int hooknum,
const struct xt_target *target, const void *targinfo)
trace_tg(struct sk_buff *skb, const struct xt_target_param *par)
{
skb->nf_trace = 1;
return XT_CONTINUE;

12
net/sched/act_ipt.c
View File

@ -188,6 +188,7 @@ static int tcf_ipt(struct sk_buff *skb, struct tc_action *a,
{
int ret = 0, result = 0;
struct tcf_ipt *ipt = a->priv;
struct xt_target_param par;
if (skb_cloned(skb)) {
if (pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
@ -203,10 +204,13 @@ static int tcf_ipt(struct sk_buff *skb, struct tc_action *a,
/* yes, we have to worry about both in and out dev
worry later - danger - this API seems to have changed
from earlier kernels */
ret = ipt->tcfi_t->u.kernel.target->target(skb, skb->dev, NULL,
ipt->tcfi_hook,
ipt->tcfi_t->u.kernel.target,
ipt->tcfi_t->data);
par.in = skb->dev;
par.out = NULL;
par.hooknum = ipt->tcfi_hook;
par.target = ipt->tcfi_t->u.kernel.target;
par.targinfo = ipt->tcfi_t->data;
ret = par.target->target(skb, &par);
switch (ret) {
case NF_ACCEPT:
result = TC_ACT_OK;