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netfilter: pass hook ops to hookfn 

Pass the hook ops to the hookfn to allow for generic hook
functions. This change is required by nf_tables.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This commit is contained in:
Patrick McHardy 2013-10-10 09:21:55 +02:00 committed by Pablo Neira Ayuso
parent ccdbb6e96b
commit 795aa6ef6a
26 changed files with 148 additions and 122 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/linux/netfilter.h
View File

@ -42,7 +42,8 @@ int netfilter_init(void);
struct sk_buff;
typedef unsigned int nf_hookfn(unsigned int hooknum,
struct nf_hook_ops;
typedef unsigned int nf_hookfn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,

22
net/bridge/br_netfilter.c
View File

@ -619,7 +619,7 @@ bad:
/* Replicate the checks that IPv6 does on packet reception and pass the packet
* to ip6tables, which doesn't support NAT, so things are fairly simple. */
static unsigned int br_nf_pre_routing_ipv6(unsigned int hook,
static unsigned int br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -669,7 +669,8 @@ static unsigned int br_nf_pre_routing_ipv6(unsigned int hook,
* receiving device) to make netfilter happy, the REDIRECT
* target in particular. Save the original destination IP
* address to be able to detect DNAT afterwards. */
static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff *skb,
static unsigned int br_nf_pre_routing(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
@ -691,7 +692,7 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff *skb,
return NF_ACCEPT;
nf_bridge_pull_encap_header_rcsum(skb);
return br_nf_pre_routing_ipv6(hook, skb, in, out, okfn);
return br_nf_pre_routing_ipv6(ops, skb, in, out, okfn);
}
if (!brnf_call_iptables && !br->nf_call_iptables)
@ -727,7 +728,8 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff *skb,
* took place when the packet entered the bridge), but we
* register an IPv4 PRE_ROUTING 'sabotage' hook that will
* prevent this from happening. */
static unsigned int br_nf_local_in(unsigned int hook, struct sk_buff *skb,
static unsigned int br_nf_local_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
@ -765,7 +767,8 @@ static int br_nf_forward_finish(struct sk_buff *skb)
* but we are still able to filter on the 'real' indev/outdev
* because of the physdev module. For ARP, indev and outdev are the
* bridge ports. */
static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb,
static unsigned int br_nf_forward_ip(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
@ -818,7 +821,8 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb,
return NF_STOLEN;
}
static unsigned int br_nf_forward_arp(unsigned int hook, struct sk_buff *skb,
static unsigned int br_nf_forward_arp(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
@ -878,7 +882,8 @@ static int br_nf_dev_queue_xmit(struct sk_buff *skb)
#endif
/* PF_BRIDGE/POST_ROUTING ********************************************/
static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb,
static unsigned int br_nf_post_routing(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
@ -923,7 +928,8 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb,
/* IP/SABOTAGE *****************************************************/
/* Don't hand locally destined packets to PF_INET(6)/PRE_ROUTING
* for the second time. */
static unsigned int ip_sabotage_in(unsigned int hook, struct sk_buff *skb,
static unsigned int ip_sabotage_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))

16
net/bridge/netfilter/ebtable_filter.c
View File

@ -60,17 +60,21 @@ static const struct ebt_table frame_filter =
};
static unsigned int
ebt_in_hook(unsigned int hook, struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, int (*okfn)(struct sk_buff *))
ebt_in_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return ebt_do_table(hook, skb, in, out, dev_net(in)->xt.frame_filter);
return ebt_do_table(ops->hooknum, skb, in, out,
dev_net(in)->xt.frame_filter);
}
static unsigned int
ebt_out_hook(unsigned int hook, struct sk_buff *skb, const struct net_device *in,
const struct net_device *out, int (*okfn)(struct sk_buff *))
ebt_out_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return ebt_do_table(hook, skb, in, out, dev_net(out)->xt.frame_filter);
return ebt_do_table(ops->hooknum, skb, in, out,
dev_net(out)->xt.frame_filter);
}
static struct nf_hook_ops ebt_ops_filter[] __read_mostly = {

16
net/bridge/netfilter/ebtable_nat.c
View File

@ -60,17 +60,21 @@ static struct ebt_table frame_nat =
};
static unsigned int
ebt_nat_in(unsigned int hook, struct sk_buff *skb, const struct net_device *in
, const struct net_device *out, int (*okfn)(struct sk_buff *))
ebt_nat_in(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return ebt_do_table(hook, skb, in, out, dev_net(in)->xt.frame_nat);
return ebt_do_table(ops->hooknum, skb, in, out,
dev_net(in)->xt.frame_nat);
}
static unsigned int
ebt_nat_out(unsigned int hook, struct sk_buff *skb, const struct net_device *in
, const struct net_device *out, int (*okfn)(struct sk_buff *))
ebt_nat_out(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return ebt_do_table(hook, skb, in, out, dev_net(out)->xt.frame_nat);
return ebt_do_table(ops->hooknum, skb, in, out,
dev_net(out)->xt.frame_nat);
}
static struct nf_hook_ops ebt_ops_nat[] __read_mostly = {

2
net/decnet/netfilter/dn_rtmsg.c
View File

@ -87,7 +87,7 @@ static void dnrmg_send_peer(struct sk_buff *skb)
}
static unsigned int dnrmg_hook(unsigned int hook,
static unsigned int dnrmg_hook(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,

5
net/ipv4/netfilter/arptable_filter.c
View File

@ -27,13 +27,14 @@ static const struct xt_table packet_filter = {
/* The work comes in here from netfilter.c */
static unsigned int
arptable_filter_hook(unsigned int hook, struct sk_buff *skb,
arptable_filter_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
const struct net *net = dev_net((in != NULL) ? in : out);
return arpt_do_table(skb, hook, in, out, net->ipv4.arptable_filter);
return arpt_do_table(skb, ops->hooknum, in, out,
net->ipv4.arptable_filter);
}
static struct nf_hook_ops *arpfilter_ops __read_mostly;

2
net/ipv4/netfilter/ipt_CLUSTERIP.c
View File

@ -483,7 +483,7 @@ static void arp_print(struct arp_payload *payload)
#endif
static unsigned int
arp_mangle(unsigned int hook,
arp_mangle(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,

2
net/ipv4/netfilter/ipt_SYNPROXY.c
View File

@ -297,7 +297,7 @@ synproxy_tg4(struct sk_buff *skb, const struct xt_action_param *par)
return XT_CONTINUE;
}
static unsigned int ipv4_synproxy_hook(unsigned int hooknum,
static unsigned int ipv4_synproxy_hook(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,

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

@ -33,20 +33,21 @@ static const struct xt_table packet_filter = {
};
static unsigned int
iptable_filter_hook(unsigned int hook, struct sk_buff *skb,
iptable_filter_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
const struct net *net;
if (hook == NF_INET_LOCAL_OUT &&
if (ops->hooknum == NF_INET_LOCAL_OUT &&
(skb->len < sizeof(struct iphdr) ||
ip_hdrlen(skb) < sizeof(struct iphdr)))
/* root is playing with raw sockets. */
return NF_ACCEPT;
net = dev_net((in != NULL) ? in : out);
return ipt_do_table(skb, hook, in, out, net->ipv4.iptable_filter);
return ipt_do_table(skb, ops->hooknum, in, out,
net->ipv4.iptable_filter);
}
static struct nf_hook_ops *filter_ops __read_mostly;

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

@ -79,19 +79,19 @@ ipt_mangle_out(struct sk_buff *skb, const struct net_device *out)
/* The work comes in here from netfilter.c. */
static unsigned int
iptable_mangle_hook(unsigned int hook,
iptable_mangle_hook(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
if (hook == NF_INET_LOCAL_OUT)
if (ops->hooknum == NF_INET_LOCAL_OUT)
return ipt_mangle_out(skb, out);
if (hook == NF_INET_POST_ROUTING)
return ipt_do_table(skb, hook, in, out,
if (ops->hooknum == NF_INET_POST_ROUTING)
return ipt_do_table(skb, ops->hooknum, in, out,
dev_net(out)->ipv4.iptable_mangle);
/* PREROUTING/INPUT/FORWARD: */
return ipt_do_table(skb, hook, in, out,
return ipt_do_table(skb, ops->hooknum, in, out,
dev_net(in)->ipv4.iptable_mangle);
}

26
net/ipv4/netfilter/iptable_nat.c
View File

@ -61,7 +61,7 @@ static unsigned int nf_nat_rule_find(struct sk_buff *skb, unsigned int hooknum,
}
static unsigned int
nf_nat_ipv4_fn(unsigned int hooknum,
nf_nat_ipv4_fn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -71,7 +71,7 @@ nf_nat_ipv4_fn(unsigned int hooknum,
enum ip_conntrack_info ctinfo;
struct nf_conn_nat *nat;
/* maniptype == SRC for postrouting. */
enum nf_nat_manip_type maniptype = HOOK2MANIP(hooknum);
enum nf_nat_manip_type maniptype = HOOK2MANIP(ops->hooknum);
/* We never see fragments: conntrack defrags on pre-routing
* and local-out, and nf_nat_out protects post-routing.
@ -108,7 +108,7 @@ nf_nat_ipv4_fn(unsigned int hooknum,
case IP_CT_RELATED_REPLY:
if (ip_hdr(skb)->protocol == IPPROTO_ICMP) {
if (!nf_nat_icmp_reply_translation(skb, ct, ctinfo,
hooknum))
ops->hooknum))
return NF_DROP;
else
return NF_ACCEPT;
@ -121,14 +121,14 @@ nf_nat_ipv4_fn(unsigned int hooknum,
if (!nf_nat_initialized(ct, maniptype)) {
unsigned int ret;
ret = nf_nat_rule_find(skb, hooknum, in, out, ct);
ret = nf_nat_rule_find(skb, ops->hooknum, in, out, ct);
if (ret != NF_ACCEPT)
return ret;
} else {
pr_debug("Already setup manip %s for ct %p\n",
maniptype == NF_NAT_MANIP_SRC ? "SRC" : "DST",
ct);
if (nf_nat_oif_changed(hooknum, ctinfo, nat, out))
if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, out))
goto oif_changed;
}
break;
@ -137,11 +137,11 @@ nf_nat_ipv4_fn(unsigned int hooknum,
/* ESTABLISHED */
NF_CT_ASSERT(ctinfo == IP_CT_ESTABLISHED ||
ctinfo == IP_CT_ESTABLISHED_REPLY);
if (nf_nat_oif_changed(hooknum, ctinfo, nat, out))
if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, out))
goto oif_changed;
}
return nf_nat_packet(ct, ctinfo, hooknum, skb);
return nf_nat_packet(ct, ctinfo, ops->hooknum, skb);
oif_changed:
nf_ct_kill_acct(ct, ctinfo, skb);
@ -149,7 +149,7 @@ oif_changed:
}
static unsigned int
nf_nat_ipv4_in(unsigned int hooknum,
nf_nat_ipv4_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -158,7 +158,7 @@ nf_nat_ipv4_in(unsigned int hooknum,
unsigned int ret;
__be32 daddr = ip_hdr(skb)->daddr;
ret = nf_nat_ipv4_fn(hooknum, skb, in, out, okfn);
ret = nf_nat_ipv4_fn(ops, skb, in, out, okfn);
if (ret != NF_DROP && ret != NF_STOLEN &&
daddr != ip_hdr(skb)->daddr)
skb_dst_drop(skb);
@ -167,7 +167,7 @@ nf_nat_ipv4_in(unsigned int hooknum,
}
static unsigned int
nf_nat_ipv4_out(unsigned int hooknum,
nf_nat_ipv4_out(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -185,7 +185,7 @@ nf_nat_ipv4_out(unsigned int hooknum,
ip_hdrlen(skb) < sizeof(struct iphdr))
return NF_ACCEPT;
ret = nf_nat_ipv4_fn(hooknum, skb, in, out, okfn);
ret = nf_nat_ipv4_fn(ops, skb, in, out, okfn);
#ifdef CONFIG_XFRM
if (ret != NF_DROP && ret != NF_STOLEN &&
!(IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED) &&
@ -207,7 +207,7 @@ nf_nat_ipv4_out(unsigned int hooknum,
}
static unsigned int
nf_nat_ipv4_local_fn(unsigned int hooknum,
nf_nat_ipv4_local_fn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -223,7 +223,7 @@ nf_nat_ipv4_local_fn(unsigned int hooknum,
ip_hdrlen(skb) < sizeof(struct iphdr))
return NF_ACCEPT;
ret = nf_nat_ipv4_fn(hooknum, skb, in, out, okfn);
ret = nf_nat_ipv4_fn(ops, skb, in, out, okfn);
if (ret != NF_DROP && ret != NF_STOLEN &&
(ct = nf_ct_get(skb, &ctinfo)) != NULL) {
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);

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

@ -20,20 +20,20 @@ static const struct xt_table packet_raw = {
/* The work comes in here from netfilter.c. */
static unsigned int
iptable_raw_hook(unsigned int hook, struct sk_buff *skb,
iptable_raw_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
const struct net *net;
if (hook == NF_INET_LOCAL_OUT &&
if (ops->hooknum == NF_INET_LOCAL_OUT &&
(skb->len < sizeof(struct iphdr) ||
ip_hdrlen(skb) < sizeof(struct iphdr)))
/* root is playing with raw sockets. */
return NF_ACCEPT;
net = dev_net((in != NULL) ? in : out);
return ipt_do_table(skb, hook, in, out, net->ipv4.iptable_raw);
return ipt_do_table(skb, ops->hooknum, in, out, net->ipv4.iptable_raw);
}
static struct nf_hook_ops *rawtable_ops __read_mostly;

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

@ -37,21 +37,22 @@ static const struct xt_table security_table = {
};
static unsigned int
iptable_security_hook(unsigned int hook, struct sk_buff *skb,
iptable_security_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
const struct net *net;
if (hook == NF_INET_LOCAL_OUT &&
if (ops->hooknum == NF_INET_LOCAL_OUT &&
(skb->len < sizeof(struct iphdr) ||
ip_hdrlen(skb) < sizeof(struct iphdr)))
/* Somebody is playing with raw sockets. */
return NF_ACCEPT;
net = dev_net((in != NULL) ? in : out);
return ipt_do_table(skb, hook, in, out, net->ipv4.iptable_security);
return ipt_do_table(skb, ops->hooknum, in, out,
net->ipv4.iptable_security);
}
static struct nf_hook_ops *sectbl_ops __read_mostly;

12
net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
View File

@ -92,7 +92,7 @@ static int ipv4_get_l4proto(const struct sk_buff *skb, unsigned int nhoff,
return NF_ACCEPT;
}
static unsigned int ipv4_helper(unsigned int hooknum,
static unsigned int ipv4_helper(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -121,7 +121,7 @@ static unsigned int ipv4_helper(unsigned int hooknum,
ct, ctinfo);
}
static unsigned int ipv4_confirm(unsigned int hooknum,
static unsigned int ipv4_confirm(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -147,16 +147,16 @@ out:
return nf_conntrack_confirm(skb);
}
static unsigned int ipv4_conntrack_in(unsigned int hooknum,
static unsigned int ipv4_conntrack_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return nf_conntrack_in(dev_net(in), PF_INET, hooknum, skb);
return nf_conntrack_in(dev_net(in), PF_INET, ops->hooknum, skb);
}
static unsigned int ipv4_conntrack_local(unsigned int hooknum,
static unsigned int ipv4_conntrack_local(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -166,7 +166,7 @@ static unsigned int ipv4_conntrack_local(unsigned int hooknum,
if (skb->len < sizeof(struct iphdr) ||
ip_hdrlen(skb) < sizeof(struct iphdr))
return NF_ACCEPT;
return nf_conntrack_in(dev_net(out), PF_INET, hooknum, skb);
return nf_conntrack_in(dev_net(out), PF_INET, ops->hooknum, skb);
}
/* Connection tracking may drop packets, but never alters them, so

6
net/ipv4/netfilter/nf_defrag_ipv4.c
View File

@ -60,7 +60,7 @@ static enum ip_defrag_users nf_ct_defrag_user(unsigned int hooknum,
return IP_DEFRAG_CONNTRACK_OUT + zone;
}
static unsigned int ipv4_conntrack_defrag(unsigned int hooknum,
static unsigned int ipv4_conntrack_defrag(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -83,7 +83,9 @@ static unsigned int ipv4_conntrack_defrag(unsigned int hooknum,
#endif
/* Gather fragments. */
if (ip_is_fragment(ip_hdr(skb))) {
enum ip_defrag_users user = nf_ct_defrag_user(hooknum, skb);
enum ip_defrag_users user =
nf_ct_defrag_user(ops->hooknum, skb);
if (nf_ct_ipv4_gather_frags(skb, user))
return NF_STOLEN;
}

2
net/ipv6/netfilter/ip6t_SYNPROXY.c
View File

@ -312,7 +312,7 @@ synproxy_tg6(struct sk_buff *skb, const struct xt_action_param *par)
return XT_CONTINUE;
}
static unsigned int ipv6_synproxy_hook(unsigned int hooknum,
static unsigned int ipv6_synproxy_hook(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,

5
net/ipv6/netfilter/ip6table_filter.c
View File

@ -32,13 +32,14 @@ static const struct xt_table packet_filter = {
/* The work comes in here from netfilter.c. */
static unsigned int
ip6table_filter_hook(unsigned int hook, struct sk_buff *skb,
ip6table_filter_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
const struct net *net = dev_net((in != NULL) ? in : out);
return ip6t_do_table(skb, hook, in, out, net->ipv6.ip6table_filter);
return ip6t_do_table(skb, ops->hooknum, in, out,
net->ipv6.ip6table_filter);
}
static struct nf_hook_ops *filter_ops __read_mostly;

10
net/ipv6/netfilter/ip6table_mangle.c
View File

@ -76,17 +76,17 @@ ip6t_mangle_out(struct sk_buff *skb, const struct net_device *out)
/* The work comes in here from netfilter.c. */
static unsigned int
ip6table_mangle_hook(unsigned int hook, struct sk_buff *skb,
ip6table_mangle_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
if (hook == NF_INET_LOCAL_OUT)
if (ops->hooknum == NF_INET_LOCAL_OUT)
return ip6t_mangle_out(skb, out);
if (hook == NF_INET_POST_ROUTING)
return ip6t_do_table(skb, hook, in, out,
if (ops->hooknum == NF_INET_POST_ROUTING)
return ip6t_do_table(skb, ops->hooknum, in, out,
dev_net(out)->ipv6.ip6table_mangle);
/* INPUT/FORWARD */
return ip6t_do_table(skb, hook, in, out,
return ip6t_do_table(skb, ops->hooknum, in, out,
dev_net(in)->ipv6.ip6table_mangle);
}

27
net/ipv6/netfilter/ip6table_nat.c
View File

@ -63,7 +63,7 @@ static unsigned int nf_nat_rule_find(struct sk_buff *skb, unsigned int hooknum,
}
static unsigned int
nf_nat_ipv6_fn(unsigned int hooknum,
nf_nat_ipv6_fn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -72,7 +72,7 @@ nf_nat_ipv6_fn(unsigned int hooknum,
struct nf_conn *ct;
enum ip_conntrack_info ctinfo;
struct nf_conn_nat *nat;
enum nf_nat_manip_type maniptype = HOOK2MANIP(hooknum);
enum nf_nat_manip_type maniptype = HOOK2MANIP(ops->hooknum);
__be16 frag_off;
int hdrlen;
u8 nexthdr;
@ -111,7 +111,8 @@ nf_nat_ipv6_fn(unsigned int hooknum,
if (hdrlen >= 0 && nexthdr == IPPROTO_ICMPV6) {
if (!nf_nat_icmpv6_reply_translation(skb, ct, ctinfo,
hooknum, hdrlen))
ops->hooknum,
hdrlen))
return NF_DROP;
else
return NF_ACCEPT;
@ -124,14 +125,14 @@ nf_nat_ipv6_fn(unsigned int hooknum,
if (!nf_nat_initialized(ct, maniptype)) {
unsigned int ret;
ret = nf_nat_rule_find(skb, hooknum, in, out, ct);
ret = nf_nat_rule_find(skb, ops->hooknum, in, out, ct);
if (ret != NF_ACCEPT)
return ret;
} else {
pr_debug("Already setup manip %s for ct %p\n",
maniptype == NF_NAT_MANIP_SRC ? "SRC" : "DST",
ct);
if (nf_nat_oif_changed(hooknum, ctinfo, nat, out))
if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, out))
goto oif_changed;
}
break;
@ -140,11 +141,11 @@ nf_nat_ipv6_fn(unsigned int hooknum,
/* ESTABLISHED */
NF_CT_ASSERT(ctinfo == IP_CT_ESTABLISHED ||
ctinfo == IP_CT_ESTABLISHED_REPLY);
if (nf_nat_oif_changed(hooknum, ctinfo, nat, out))
if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, out))
goto oif_changed;
}
return nf_nat_packet(ct, ctinfo, hooknum, skb);
return nf_nat_packet(ct, ctinfo, ops->hooknum, skb);
oif_changed:
nf_ct_kill_acct(ct, ctinfo, skb);
@ -152,7 +153,7 @@ oif_changed:
}
static unsigned int
nf_nat_ipv6_in(unsigned int hooknum,
nf_nat_ipv6_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -161,7 +162,7 @@ nf_nat_ipv6_in(unsigned int hooknum,
unsigned int ret;
struct in6_addr daddr = ipv6_hdr(skb)->daddr;
ret = nf_nat_ipv6_fn(hooknum, skb, in, out, okfn);
ret = nf_nat_ipv6_fn(ops, skb, in, out, okfn);
if (ret != NF_DROP && ret != NF_STOLEN &&
ipv6_addr_cmp(&daddr, &ipv6_hdr(skb)->daddr))
skb_dst_drop(skb);
@ -170,7 +171,7 @@ nf_nat_ipv6_in(unsigned int hooknum,
}
static unsigned int
nf_nat_ipv6_out(unsigned int hooknum,
nf_nat_ipv6_out(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -187,7 +188,7 @@ nf_nat_ipv6_out(unsigned int hooknum,
if (skb->len < sizeof(struct ipv6hdr))
return NF_ACCEPT;
ret = nf_nat_ipv6_fn(hooknum, skb, in, out, okfn);
ret = nf_nat_ipv6_fn(ops, skb, in, out, okfn);
#ifdef CONFIG_XFRM
if (ret != NF_DROP && ret != NF_STOLEN &&
!(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) &&
@ -209,7 +210,7 @@ nf_nat_ipv6_out(unsigned int hooknum,
}
static unsigned int
nf_nat_ipv6_local_fn(unsigned int hooknum,
nf_nat_ipv6_local_fn(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -224,7 +225,7 @@ nf_nat_ipv6_local_fn(unsigned int hooknum,
if (skb->len < sizeof(struct ipv6hdr))
return NF_ACCEPT;
ret = nf_nat_ipv6_fn(hooknum, skb, in, out, okfn);
ret = nf_nat_ipv6_fn(ops, skb, in, out, okfn);
if (ret != NF_DROP && ret != NF_STOLEN &&
(ct = nf_ct_get(skb, &ctinfo)) != NULL) {
enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);

5
net/ipv6/netfilter/ip6table_raw.c
View File

@ -19,13 +19,14 @@ static const struct xt_table packet_raw = {
/* The work comes in here from netfilter.c. */
static unsigned int
ip6table_raw_hook(unsigned int hook, struct sk_buff *skb,
ip6table_raw_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
const struct net *net = dev_net((in != NULL) ? in : out);
return ip6t_do_table(skb, hook, in, out, net->ipv6.ip6table_raw);
return ip6t_do_table(skb, ops->hooknum, in, out,
net->ipv6.ip6table_raw);
}
static struct nf_hook_ops *rawtable_ops __read_mostly;

5
net/ipv6/netfilter/ip6table_security.c
View File

@ -36,14 +36,15 @@ static const struct xt_table security_table = {
};
static unsigned int
ip6table_security_hook(unsigned int hook, struct sk_buff *skb,
ip6table_security_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
const struct net *net = dev_net((in != NULL) ? in : out);
return ip6t_do_table(skb, hook, in, out, net->ipv6.ip6table_security);
return ip6t_do_table(skb, ops->hooknum, in, out,
net->ipv6.ip6table_security);
}
static struct nf_hook_ops *sectbl_ops __read_mostly;

14
net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
View File

@ -95,7 +95,7 @@ static int ipv6_get_l4proto(const struct sk_buff *skb, unsigned int nhoff,
return NF_ACCEPT;
}
static unsigned int ipv6_helper(unsigned int hooknum,
static unsigned int ipv6_helper(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -133,7 +133,7 @@ static unsigned int ipv6_helper(unsigned int hooknum,
return helper->help(skb, protoff, ct, ctinfo);
}
static unsigned int ipv6_confirm(unsigned int hooknum,
static unsigned int ipv6_confirm(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -219,16 +219,17 @@ static unsigned int __ipv6_conntrack_in(struct net *net,
return nf_conntrack_in(net, PF_INET6, hooknum, skb);
}
static unsigned int ipv6_conntrack_in(unsigned int hooknum,
static unsigned int ipv6_conntrack_in(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return __ipv6_conntrack_in(dev_net(in), hooknum, skb, in, out, okfn);
return __ipv6_conntrack_in(dev_net(in), ops->hooknum, skb, in, out,
okfn);
}
static unsigned int ipv6_conntrack_local(unsigned int hooknum,
static unsigned int ipv6_conntrack_local(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -239,7 +240,8 @@ static unsigned int ipv6_conntrack_local(unsigned int hooknum,
net_notice_ratelimited("ipv6_conntrack_local: packet too short\n");
return NF_ACCEPT;
}
return __ipv6_conntrack_in(dev_net(out), hooknum, skb, in, out, okfn);
return __ipv6_conntrack_in(dev_net(out), ops->hooknum, skb, in, out,
okfn);
}
static struct nf_hook_ops ipv6_conntrack_ops[] __read_mostly = {

6
net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
View File

@ -52,7 +52,7 @@ static enum ip6_defrag_users nf_ct6_defrag_user(unsigned int hooknum,
}
static unsigned int ipv6_defrag(unsigned int hooknum,
static unsigned int ipv6_defrag(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -66,7 +66,7 @@ static unsigned int ipv6_defrag(unsigned int hooknum,
return NF_ACCEPT;
#endif
reasm = nf_ct_frag6_gather(skb, nf_ct6_defrag_user(hooknum, skb));
reasm = nf_ct_frag6_gather(skb, nf_ct6_defrag_user(ops->hooknum, skb));
/* queued */
if (reasm == NULL)
return NF_STOLEN;
@ -75,7 +75,7 @@ static unsigned int ipv6_defrag(unsigned int hooknum,
if (reasm == skb)
return NF_ACCEPT;
nf_ct_frag6_output(hooknum, reasm, (struct net_device *)in,
nf_ct_frag6_output(ops->hooknum, reasm, (struct net_device *)in,
(struct net_device *)out, okfn);
return NF_STOLEN;

2
net/netfilter/core.c
View File

@ -146,7 +146,7 @@ unsigned int nf_iterate(struct list_head *head,
/* Optimization: we don't need to hold module
reference here, since function can't sleep. --RR */
repeat:
verdict = (*elemp)->hook(hook, skb, indev, outdev, okfn);
verdict = (*elemp)->hook(*elemp, skb, indev, outdev, okfn);
if (verdict != NF_ACCEPT) {
#ifdef CONFIG_NETFILTER_DEBUG
if (unlikely((verdict & NF_VERDICT_MASK)

42
net/netfilter/ipvs/ip_vs_core.c
View File

@ -1239,11 +1239,11 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb, int af)
* Check if packet is reply for established ip_vs_conn.
*/
static unsigned int
ip_vs_reply4(unsigned int hooknum, struct sk_buff *skb,
ip_vs_reply4(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return ip_vs_out(hooknum, skb, AF_INET);
return ip_vs_out(ops->hooknum, skb, AF_INET);
}
/*
@ -1251,11 +1251,11 @@ ip_vs_reply4(unsigned int hooknum, struct sk_buff *skb,
* Check if packet is reply for established ip_vs_conn.
*/
static unsigned int
ip_vs_local_reply4(unsigned int hooknum, struct sk_buff *skb,
ip_vs_local_reply4(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return ip_vs_out(hooknum, skb, AF_INET);
return ip_vs_out(ops->hooknum, skb, AF_INET);
}
#ifdef CONFIG_IP_VS_IPV6
@ -1266,11 +1266,11 @@ ip_vs_local_reply4(unsigned int hooknum, struct sk_buff *skb,
* Check if packet is reply for established ip_vs_conn.
*/
static unsigned int
ip_vs_reply6(unsigned int hooknum, struct sk_buff *skb,
ip_vs_reply6(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return ip_vs_out(hooknum, skb, AF_INET6);
return ip_vs_out(ops->hooknum, skb, AF_INET6);
}
/*
@ -1278,11 +1278,11 @@ ip_vs_reply6(unsigned int hooknum, struct sk_buff *skb,
* Check if packet is reply for established ip_vs_conn.
*/
static unsigned int
ip_vs_local_reply6(unsigned int hooknum, struct sk_buff *skb,
ip_vs_local_reply6(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return ip_vs_out(hooknum, skb, AF_INET6);
return ip_vs_out(ops->hooknum, skb, AF_INET6);
}
#endif
@ -1733,12 +1733,12 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
* Schedule and forward packets from remote clients
*/
static unsigned int
ip_vs_remote_request4(unsigned int hooknum, struct sk_buff *skb,
ip_vs_remote_request4(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return ip_vs_in(hooknum, skb, AF_INET);
return ip_vs_in(ops->hooknum, skb, AF_INET);
}
/*
@ -1746,11 +1746,11 @@ ip_vs_remote_request4(unsigned int hooknum, struct sk_buff *skb,
* Schedule and forward packets from local clients
*/
static unsigned int
ip_vs_local_request4(unsigned int hooknum, struct sk_buff *skb,
ip_vs_local_request4(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return ip_vs_in(hooknum, skb, AF_INET);
return ip_vs_in(ops->hooknum, skb, AF_INET);
}
#ifdef CONFIG_IP_VS_IPV6
@ -1760,7 +1760,7 @@ ip_vs_local_request4(unsigned int hooknum, struct sk_buff *skb,
* Copy info from first fragment, to the rest of them.
*/
static unsigned int
ip_vs_preroute_frag6(unsigned int hooknum, struct sk_buff *skb,
ip_vs_preroute_frag6(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
@ -1792,12 +1792,12 @@ ip_vs_preroute_frag6(unsigned int hooknum, struct sk_buff *skb,
* Schedule and forward packets from remote clients
*/
static unsigned int
ip_vs_remote_request6(unsigned int hooknum, struct sk_buff *skb,
ip_vs_remote_request6(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return ip_vs_in(hooknum, skb, AF_INET6);
return ip_vs_in(ops->hooknum, skb, AF_INET6);
}
/*
@ -1805,11 +1805,11 @@ ip_vs_remote_request6(unsigned int hooknum, struct sk_buff *skb,
* Schedule and forward packets from local clients
*/
static unsigned int
ip_vs_local_request6(unsigned int hooknum, struct sk_buff *skb,
ip_vs_local_request6(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
return ip_vs_in(hooknum, skb, AF_INET6);
return ip_vs_in(ops->hooknum, skb, AF_INET6);
}
#endif
@ -1825,7 +1825,7 @@ ip_vs_local_request6(unsigned int hooknum, struct sk_buff *skb,
* and send them to ip_vs_in_icmp.
*/
static unsigned int
ip_vs_forward_icmp(unsigned int hooknum, struct sk_buff *skb,
ip_vs_forward_icmp(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
@ -1842,12 +1842,12 @@ ip_vs_forward_icmp(unsigned int hooknum, struct sk_buff *skb,
if (unlikely(sysctl_backup_only(ipvs) || !ipvs->enable))
return NF_ACCEPT;
return ip_vs_in_icmp(skb, &r, hooknum);
return ip_vs_in_icmp(skb, &r, ops->hooknum);
}
#ifdef CONFIG_IP_VS_IPV6
static unsigned int
ip_vs_forward_icmp_v6(unsigned int hooknum, struct sk_buff *skb,
ip_vs_forward_icmp_v6(const struct nf_hook_ops *ops, struct sk_buff *skb,
const struct net_device *in, const struct net_device *out,
int (*okfn)(struct sk_buff *))
{
@ -1866,7 +1866,7 @@ ip_vs_forward_icmp_v6(unsigned int hooknum, struct sk_buff *skb,
if (unlikely(sysctl_backup_only(ipvs) || !ipvs->enable))
return NF_ACCEPT;
return ip_vs_in_icmp_v6(skb, &r, hooknum, &iphdr);
return ip_vs_in_icmp_v6(skb, &r, ops->hooknum, &iphdr);
}
#endif

10
security/selinux/hooks.c
View File

@ -4668,7 +4668,7 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex,
return NF_ACCEPT;
}
static unsigned int selinux_ipv4_forward(unsigned int hooknum,
static unsigned int selinux_ipv4_forward(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -4678,7 +4678,7 @@ static unsigned int selinux_ipv4_forward(unsigned int hooknum,
}
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
static unsigned int selinux_ipv6_forward(unsigned int hooknum,
static unsigned int selinux_ipv6_forward(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -4710,7 +4710,7 @@ static unsigned int selinux_ip_output(struct sk_buff *skb,
return NF_ACCEPT;
}
static unsigned int selinux_ipv4_output(unsigned int hooknum,
static unsigned int selinux_ipv4_output(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -4837,7 +4837,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
return NF_ACCEPT;
}
static unsigned int selinux_ipv4_postroute(unsigned int hooknum,
static unsigned int selinux_ipv4_postroute(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,
@ -4847,7 +4847,7 @@ static unsigned int selinux_ipv4_postroute(unsigned int hooknum,
}
#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
static unsigned int selinux_ipv6_postroute(unsigned int hooknum,
static unsigned int selinux_ipv6_postroute(const struct nf_hook_ops *ops,
struct sk_buff *skb,
const struct net_device *in,
const struct net_device *out,