* Copyright: Jamal Hadi Salim (2002-4)
*/
-#include <asm/uaccess.h>
-#include <asm/system.h>
-#include <asm/bitops.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/socket.h>
-#include <linux/sockios.h>
-#include <linux/in.h>
#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <linux/rtnetlink.h>
#include <linux/module.h>
#include <linux/init.h>
-#include <linux/proc_fs.h>
-#include <linux/kmod.h>
-#include <net/sock.h>
+#include <net/netlink.h>
#include <net/pkt_sched.h>
#include <linux/tc_act/tc_ipt.h>
#include <net/tc_act/tc_ipt.h>
static int ipt_init_target(struct ipt_entry_target *t, char *table, unsigned int hook)
{
+ struct xt_tgchk_param par;
struct xt_target *target;
int ret = 0;
return -ENOENT;
t->u.kernel.target = target;
-
- ret = xt_check_target(target, AF_INET, t->u.target_size - sizeof(*t),
- table, hook, 0, 0);
- if (ret) {
+ par.table = table;
+ par.entryinfo = NULL;
+ par.target = target;
+ par.targinfo = t->data;
+ par.hook_mask = hook;
+ par.family = NFPROTO_IPV4;
+
+ ret = xt_check_target(&par, t->u.target_size - sizeof(*t), 0, false);
+ if (ret < 0) {
module_put(t->u.kernel.target->me);
return ret;
}
- if (t->u.kernel.target->checkentry
- && !t->u.kernel.target->checkentry(table, NULL,
- t->u.kernel.target, t->data,
- hook)) {
- module_put(t->u.kernel.target->me);
- ret = -EINVAL;
- }
-
- return ret;
+ return 0;
}
static void ipt_destroy_target(struct ipt_entry_target *t)
{
- if (t->u.kernel.target->destroy)
- t->u.kernel.target->destroy(t->u.kernel.target, t->data);
- module_put(t->u.kernel.target->me);
+ struct xt_tgdtor_param par = {
+ .target = t->u.kernel.target,
+ .targinfo = t->data,
+ };
+ if (par.target->destroy != NULL)
+ par.target->destroy(&par);
+ module_put(par.target->me);
}
static int tcf_ipt_release(struct tcf_ipt *ipt, int bind)
return ret;
}
-static int tcf_ipt_init(struct rtattr *rta, struct rtattr *est,
+static const struct nla_policy ipt_policy[TCA_IPT_MAX + 1] = {
+ [TCA_IPT_TABLE] = { .type = NLA_STRING, .len = IFNAMSIZ },
+ [TCA_IPT_HOOK] = { .type = NLA_U32 },
+ [TCA_IPT_INDEX] = { .type = NLA_U32 },
+ [TCA_IPT_TARG] = { .len = sizeof(struct ipt_entry_target) },
+};
+
+static int tcf_ipt_init(struct nlattr *nla, struct nlattr *est,
struct tc_action *a, int ovr, int bind)
{
- struct rtattr *tb[TCA_IPT_MAX];
+ struct nlattr *tb[TCA_IPT_MAX + 1];
struct tcf_ipt *ipt;
struct tcf_common *pc;
struct ipt_entry_target *td, *t;
u32 hook = 0;
u32 index = 0;
- if (rta == NULL || rtattr_parse_nested(tb, TCA_IPT_MAX, rta) < 0)
+ if (nla == NULL)
return -EINVAL;
- if (tb[TCA_IPT_HOOK-1] == NULL ||
- RTA_PAYLOAD(tb[TCA_IPT_HOOK-1]) < sizeof(u32))
+ err = nla_parse_nested(tb, TCA_IPT_MAX, nla, ipt_policy);
+ if (err < 0)
+ return err;
+
+ if (tb[TCA_IPT_HOOK] == NULL)
return -EINVAL;
- if (tb[TCA_IPT_TARG-1] == NULL ||
- RTA_PAYLOAD(tb[TCA_IPT_TARG-1]) < sizeof(*t))
+ if (tb[TCA_IPT_TARG] == NULL)
return -EINVAL;
- td = (struct ipt_entry_target *)RTA_DATA(tb[TCA_IPT_TARG-1]);
- if (RTA_PAYLOAD(tb[TCA_IPT_TARG-1]) < td->u.target_size)
+
+ td = (struct ipt_entry_target *)nla_data(tb[TCA_IPT_TARG]);
+ if (nla_len(tb[TCA_IPT_TARG]) < td->u.target_size)
return -EINVAL;
- if (tb[TCA_IPT_INDEX-1] != NULL &&
- RTA_PAYLOAD(tb[TCA_IPT_INDEX-1]) >= sizeof(u32))
- index = *(u32 *)RTA_DATA(tb[TCA_IPT_INDEX-1]);
+ if (tb[TCA_IPT_INDEX] != NULL)
+ index = nla_get_u32(tb[TCA_IPT_INDEX]);
pc = tcf_hash_check(index, a, bind, &ipt_hash_info);
if (!pc) {
pc = tcf_hash_create(index, est, a, sizeof(*ipt), bind,
&ipt_idx_gen, &ipt_hash_info);
- if (unlikely(!pc))
- return -ENOMEM;
+ if (IS_ERR(pc))
+ return PTR_ERR(pc);
ret = ACT_P_CREATED;
} else {
if (!ovr) {
}
ipt = to_ipt(pc);
- hook = *(u32 *)RTA_DATA(tb[TCA_IPT_HOOK-1]);
+ hook = nla_get_u32(tb[TCA_IPT_HOOK]);
err = -ENOMEM;
tname = kmalloc(IFNAMSIZ, GFP_KERNEL);
if (unlikely(!tname))
goto err1;
- if (tb[TCA_IPT_TABLE - 1] == NULL ||
- rtattr_strlcpy(tname, tb[TCA_IPT_TABLE-1], IFNAMSIZ) >= IFNAMSIZ)
+ if (tb[TCA_IPT_TABLE] == NULL ||
+ nla_strlcpy(tname, tb[TCA_IPT_TABLE], IFNAMSIZ) >= IFNAMSIZ)
strcpy(tname, "mangle");
t = kmemdup(td, td->u.target_size, GFP_KERNEL);
{
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))
spin_lock(&ipt->tcf_lock);
ipt->tcf_tm.lastuse = jiffies;
- ipt->tcf_bstats.bytes += skb->len;
+ ipt->tcf_bstats.bytes += qdisc_pkt_len(skb);
ipt->tcf_bstats.packets++;
/* yes, we have to worry about both in and out dev
worry later - danger - this API seems to have changed
from earlier kernels */
+ 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);
- /* iptables targets take a double skb pointer in case the skb
- * needs to be replaced. We don't own the skb, so this must not
- * happen. The pskb_expand_head above should make sure of this */
- 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);
switch (ret) {
case NF_ACCEPT:
result = TC_ACT_OK;
static int tcf_ipt_dump(struct sk_buff *skb, struct tc_action *a, int bind, int ref)
{
- unsigned char *b = skb->tail;
+ unsigned char *b = skb_tail_pointer(skb);
struct tcf_ipt *ipt = a->priv;
struct ipt_entry_target *t;
struct tcf_t tm;
t = kmemdup(ipt->tcfi_t, ipt->tcfi_t->u.user.target_size, GFP_ATOMIC);
if (unlikely(!t))
- goto rtattr_failure;
+ goto nla_put_failure;
c.bindcnt = ipt->tcf_bindcnt - bind;
c.refcnt = ipt->tcf_refcnt - ref;
strcpy(t->u.user.name, ipt->tcfi_t->u.kernel.target->name);
- RTA_PUT(skb, TCA_IPT_TARG, ipt->tcfi_t->u.user.target_size, t);
- RTA_PUT(skb, TCA_IPT_INDEX, 4, &ipt->tcf_index);
- RTA_PUT(skb, TCA_IPT_HOOK, 4, &ipt->tcfi_hook);
- RTA_PUT(skb, TCA_IPT_CNT, sizeof(struct tc_cnt), &c);
- RTA_PUT(skb, TCA_IPT_TABLE, IFNAMSIZ, ipt->tcfi_tname);
+ NLA_PUT(skb, TCA_IPT_TARG, ipt->tcfi_t->u.user.target_size, t);
+ NLA_PUT_U32(skb, TCA_IPT_INDEX, ipt->tcf_index);
+ NLA_PUT_U32(skb, TCA_IPT_HOOK, ipt->tcfi_hook);
+ NLA_PUT(skb, TCA_IPT_CNT, sizeof(struct tc_cnt), &c);
+ NLA_PUT_STRING(skb, TCA_IPT_TABLE, ipt->tcfi_tname);
tm.install = jiffies_to_clock_t(jiffies - ipt->tcf_tm.install);
tm.lastuse = jiffies_to_clock_t(jiffies - ipt->tcf_tm.lastuse);
tm.expires = jiffies_to_clock_t(ipt->tcf_tm.expires);
- RTA_PUT(skb, TCA_IPT_TM, sizeof (tm), &tm);
+ NLA_PUT(skb, TCA_IPT_TM, sizeof (tm), &tm);
kfree(t);
return skb->len;
-rtattr_failure:
- skb_trim(skb, b - skb->data);
+nla_put_failure:
+ nlmsg_trim(skb, b);
kfree(t);
return -1;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff