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netfilter: Pass struct net into the netfilter hooks

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Pass a network namespace parameter into the netfilter hooks.  At the
call site of the netfilter hooks the path a packet is taking through
the network stack is well known which allows the network namespace to
be easily and reliabily.

This allows the replacement of magic code like
"dev_net(state->in?:state->out)" that appears at the start of most
netfilter hooks with "state->net".

In almost all cases the network namespace passed in is derived
from the first network device passed in, guaranteeing those
paths will not see any changes in practice.

The exceptions are:
xfrm/xfrm_output.c:xfrm_output_resume()         xs_net(skb_dst(skb)->xfrm)
ipvs/ip_vs_xmit.c:ip_vs_nat_send_or_cont()      ip_vs_conn_net(cp)
ipvs/ip_vs_xmit.c:ip_vs_send_or_cont()          ip_vs_conn_net(cp)
ipv4/raw.c:raw_send_hdrinc()                    sock_net(sk)
ipv6/ip6_output.c:ip6_xmit()			sock_net(sk)
ipv6/ndisc.c:ndisc_send_skb()                   dev_net(skb->dev) not dev_net(dst->dev)
ipv6/raw.c:raw6_send_hdrinc()                   sock_net(sk)
br_netfilter_hooks.c:br_nf_pre_routing_finish() dev_net(skb->dev) before skb->dev is set to nf_bridge->physindev

In all cases these exceptions seem to be a better expression for the
network namespace the packet is being processed in then the historic
"dev_net(in?in:out)".  I am documenting them in case something odd
pops up and someone starts trying to track down what happened.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman 2015-09-15 20:04:16 -05:00 committed by David S. Miller
parent 04eb44890e
commit 29a26a5680
31 changed files with 142 additions and 120 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/net/vrf.c
View file

@ -298,14 +298,15 @@ static int vrf_finish_output(struct sock *sk, struct sk_buff *skb)
static int vrf_output(struct sock *sk, struct sk_buff *skb)
{
struct net_device *dev = skb_dst(skb)->dev;
struct net *net = dev_net(dev);
IP_UPD_PO_STATS(dev_net(dev), IPSTATS_MIB_OUT, skb->len);
IP_UPD_PO_STATS(net, IPSTATS_MIB_OUT, skb->len);
skb->dev = dev;
skb->protocol = htons(ETH_P_IP);
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, skb,
NULL, dev,
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING,
net, sk, skb, NULL, dev,
vrf_finish_output,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}

27
include/linux/netfilter.h
View file

@ -190,12 +190,11 @@ static inline int nf_hook_thresh(u_int8_t pf, unsigned int hook,
return 1;
}
static inline int nf_hook(u_int8_t pf, unsigned int hook, struct sock *sk,
struct sk_buff *skb, struct net_device *indev,
struct net_device *outdev,
static inline int nf_hook(u_int8_t pf, unsigned int hook, struct net *net,
struct sock *sk, struct sk_buff *skb,
struct net_device *indev, struct net_device *outdev,
int (*okfn)(struct sock *, struct sk_buff *))
{
struct net *net = dev_net(indev ? indev : outdev);
return nf_hook_thresh(pf, hook, net, sk, skb, indev, outdev, okfn, INT_MIN);
}
@ -217,12 +216,11 @@ static inline int nf_hook(u_int8_t pf, unsigned int hook, struct sock *sk,
*/
static inline int
NF_HOOK_THRESH(uint8_t pf, unsigned int hook, struct sock *sk,
NF_HOOK_THRESH(uint8_t pf, unsigned int hook, struct net *net, struct sock *sk,
struct sk_buff *skb, struct net_device *in,
struct net_device *out,
int (*okfn)(struct sock *, struct sk_buff *), int thresh)
{
struct net *net = dev_net(in ? in : out);
int ret = nf_hook_thresh(pf, hook, net, sk, skb, in, out, okfn, thresh);
if (ret == 1)
ret = okfn(sk, skb);
@ -230,11 +228,10 @@ NF_HOOK_THRESH(uint8_t pf, unsigned int hook, struct sock *sk,
}
static inline int
NF_HOOK_COND(uint8_t pf, unsigned int hook, struct sock *sk,
NF_HOOK_COND(uint8_t pf, unsigned int hook, struct net *net, struct sock *sk,
struct sk_buff *skb, struct net_device *in, struct net_device *out,
int (*okfn)(struct sock *, struct sk_buff *), bool cond)
{
struct net *net = dev_net(in ? in : out);
int ret;
if (!cond ||
@ -244,11 +241,11 @@ NF_HOOK_COND(uint8_t pf, unsigned int hook, struct sock *sk,
}
static inline int
NF_HOOK(uint8_t pf, unsigned int hook, struct sock *sk, struct sk_buff *skb,
NF_HOOK(uint8_t pf, unsigned int hook, struct net *net, struct sock *sk, struct sk_buff *skb,
struct net_device *in, struct net_device *out,
int (*okfn)(struct sock *, struct sk_buff *))
{
return NF_HOOK_THRESH(pf, hook, sk, skb, in, out, okfn, INT_MIN);
return NF_HOOK_THRESH(pf, hook, net, sk, skb, in, out, okfn, INT_MIN);
}
/* Call setsockopt() */
@ -348,11 +345,11 @@ nf_nat_decode_session(struct sk_buff *skb, struct flowi *fl, u_int8_t family)
}
#else /* !CONFIG_NETFILTER */
#define NF_HOOK(pf, hook, sk, skb, indev, outdev, okfn) (okfn)(sk, skb)
#define NF_HOOK_COND(pf, hook, sk, skb, indev, outdev, okfn, cond) (okfn)(sk, skb)
static inline int nf_hook(u_int8_t pf, unsigned int hook, struct sock *sk,
struct sk_buff *skb, struct net_device *indev,
struct net_device *outdev,
#define NF_HOOK(pf, hook, net, sk, skb, indev, outdev, okfn) (okfn)(sk, skb)
#define NF_HOOK_COND(pf, hook, net, sk, skb, indev, outdev, okfn, cond) (okfn)(sk, skb)
static inline int nf_hook(u_int8_t pf, unsigned int hook, struct net *net,
struct sock *sk, struct sk_buff *skb,
struct net_device *indev, struct net_device *outdev,
int (*okfn)(struct sock *, struct sk_buff *))
{
return 1;

13
net/bridge/br_forward.c
View file

@ -67,8 +67,9 @@ EXPORT_SYMBOL_GPL(br_dev_queue_push_xmit);
int br_forward_finish(struct sock *sk, struct sk_buff *skb)
{
return NF_HOOK(NFPROTO_BRIDGE, NF_BR_POST_ROUTING, sk, skb,
NULL, skb->dev,
struct net *net = dev_net(skb->dev);
return NF_HOOK(NFPROTO_BRIDGE, NF_BR_POST_ROUTING,
net, sk, skb, NULL, skb->dev,
br_dev_queue_push_xmit);
}
@ -92,8 +93,8 @@ static void __br_deliver(const struct net_bridge_port *to, struct sk_buff *skb)
return;
}
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, NULL, skb,
NULL, skb->dev,
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT,
dev_net(skb->dev), NULL, skb,NULL, skb->dev,
br_forward_finish);
}
@ -114,8 +115,8 @@ static void __br_forward(const struct net_bridge_port *to, struct sk_buff *skb)
skb->dev = to->dev;
skb_forward_csum(skb);
NF_HOOK(NFPROTO_BRIDGE, NF_BR_FORWARD, NULL, skb,
indev, skb->dev,
NF_HOOK(NFPROTO_BRIDGE, NF_BR_FORWARD,
dev_net(indev), NULL, skb, indev, skb->dev,
br_forward_finish);
}

13
net/bridge/br_input.c
View file

@ -60,8 +60,8 @@ static int br_pass_frame_up(struct sk_buff *skb)
if (!skb)
return NET_RX_DROP;
return NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, NULL, skb,
indev, NULL,
return NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN,
dev_net(indev), NULL, skb, indev, NULL,
br_netif_receive_skb);
}
@ -283,8 +283,9 @@ rx_handler_result_t br_handle_frame(struct sk_buff **pskb)
}
/* Deliver packet to local host only */
if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, NULL, skb,
skb->dev, NULL, br_handle_local_finish)) {
if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN,
dev_net(skb->dev), NULL, skb, skb->dev, NULL,
br_handle_local_finish)) {
return RX_HANDLER_CONSUMED; /* consumed by filter */
} else {
*pskb = skb;
@ -308,8 +309,8 @@ rx_handler_result_t br_handle_frame(struct sk_buff **pskb)
if (ether_addr_equal(p->br->dev->dev_addr, dest))
skb->pkt_type = PACKET_HOST;
NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, NULL, skb,
skb->dev, NULL,
NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING,
dev_net(skb->dev), NULL, skb, skb->dev, NULL,
br_handle_frame_finish);
break;
default:

4
net/bridge/br_multicast.c
View file

@ -829,8 +829,8 @@ static void __br_multicast_send_query(struct net_bridge *br,
if (port) {
skb->dev = port->dev;
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, NULL, skb,
NULL, skb->dev,
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT,
dev_net(port->dev), NULL, skb, NULL, skb->dev,
br_dev_queue_push_xmit);
} else {
br_multicast_select_own_querier(br, ip, skb);

15
net/bridge/br_netfilter_hooks.c
View file

@ -394,7 +394,7 @@ static int br_nf_pre_routing_finish(struct sock *sk, struct sk_buff *skb)
nf_bridge_push_encap_header(skb);
NF_HOOK_THRESH(NFPROTO_BRIDGE,
NF_BR_PRE_ROUTING,
sk, skb, skb->dev, NULL,
net, sk, skb, skb->dev, NULL,
br_nf_pre_routing_finish_bridge,
1);
return 0;
@ -414,7 +414,7 @@ static int br_nf_pre_routing_finish(struct sock *sk, struct sk_buff *skb)
skb->dev = nf_bridge->physindev;
nf_bridge_update_protocol(skb);
nf_bridge_push_encap_header(skb);
NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, sk, skb,
NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, net, sk, skb,
skb->dev, NULL,
br_handle_frame_finish, 1);
@ -512,7 +512,7 @@ static unsigned int br_nf_pre_routing(const struct nf_hook_ops *ops,
skb->protocol = htons(ETH_P_IP);
NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, state->sk, skb,
NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, state->net, state->sk, skb,
skb->dev, NULL,
br_nf_pre_routing_finish);
@ -539,6 +539,7 @@ static unsigned int br_nf_local_in(const struct nf_hook_ops *ops,
static int br_nf_forward_finish(struct sock *sk, struct sk_buff *skb)
{
struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb);
struct net *net = dev_net(skb->dev);
struct net_device *in;
if (!IS_ARP(skb) && !IS_VLAN_ARP(skb)) {
@ -560,7 +561,7 @@ static int br_nf_forward_finish(struct sock *sk, struct sk_buff *skb)
}
nf_bridge_push_encap_header(skb);
NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_FORWARD, sk, skb,
NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_FORWARD, net, sk, skb,
in, skb->dev, br_forward_finish, 1);
return 0;
}
@ -627,7 +628,7 @@ static unsigned int br_nf_forward_ip(const struct nf_hook_ops *ops,
else
skb->protocol = htons(ETH_P_IPV6);
NF_HOOK(pf, NF_INET_FORWARD, NULL, skb,
NF_HOOK(pf, NF_INET_FORWARD, state->net, NULL, skb,
brnf_get_logical_dev(skb, state->in),
parent, br_nf_forward_finish);
@ -662,7 +663,7 @@ static unsigned int br_nf_forward_arp(const struct nf_hook_ops *ops,
return NF_ACCEPT;
}
*d = state->in;
NF_HOOK(NFPROTO_ARP, NF_ARP_FORWARD, state->sk, skb,
NF_HOOK(NFPROTO_ARP, NF_ARP_FORWARD, state->net, state->sk, skb,
state->in, state->out, br_nf_forward_finish);
return NF_STOLEN;
@ -842,7 +843,7 @@ static unsigned int br_nf_post_routing(const struct nf_hook_ops *ops,
else
skb->protocol = htons(ETH_P_IPV6);
NF_HOOK(pf, NF_INET_POST_ROUTING, state->sk, skb,
NF_HOOK(pf, NF_INET_POST_ROUTING, state->net, state->sk, skb,
NULL, realoutdev,
br_nf_dev_queue_xmit);

7
net/bridge/br_netfilter_ipv6.c
View file

@ -166,6 +166,7 @@ static int br_nf_pre_routing_finish_ipv6(struct sock *sk, struct sk_buff *skb)
struct nf_bridge_info *nf_bridge = nf_bridge_info_get(skb);
struct rtable *rt;
struct net_device *dev = skb->dev;
struct net *net = dev_net(dev);
const struct nf_ipv6_ops *v6ops = nf_get_ipv6_ops();
nf_bridge->frag_max_size = IP6CB(skb)->frag_max_size;
@ -189,7 +190,7 @@ static int br_nf_pre_routing_finish_ipv6(struct sock *sk, struct sk_buff *skb)
nf_bridge_update_protocol(skb);
nf_bridge_push_encap_header(skb);
NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING,
sk, skb, skb->dev, NULL,
net, sk, skb, skb->dev, NULL,
br_nf_pre_routing_finish_bridge,
1);
return 0;
@ -208,7 +209,7 @@ static int br_nf_pre_routing_finish_ipv6(struct sock *sk, struct sk_buff *skb)
skb->dev = nf_bridge->physindev;
nf_bridge_update_protocol(skb);
nf_bridge_push_encap_header(skb);
NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, sk, skb,
NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, net, sk, skb,
skb->dev, NULL,
br_handle_frame_finish, 1);
@ -237,7 +238,7 @@ unsigned int br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops,
nf_bridge->ipv6_daddr = ipv6_hdr(skb)->daddr;
skb->protocol = htons(ETH_P_IPV6);
NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, state->sk, skb,
NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, state->net, state->sk, skb,
skb->dev, NULL,
br_nf_pre_routing_finish_ipv6);

4
net/bridge/br_stp_bpdu.c
View file

@ -59,8 +59,8 @@ static void br_send_bpdu(struct net_bridge_port *p,
skb_reset_mac_header(skb);
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, NULL, skb,
NULL, skb->dev,
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT,
dev_net(p->dev), NULL, skb, NULL, skb->dev,
br_send_bpdu_finish);
}

15
net/decnet/dn_neigh.c
View file

@ -246,8 +246,9 @@ static int dn_long_output(struct neighbour *neigh, struct sock *sk,
skb_reset_network_header(skb);
return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, sk, skb,
NULL, neigh->dev, dn_neigh_output_packet);
return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING,
&init_net, sk, skb, NULL, neigh->dev,
dn_neigh_output_packet);
}
/*
@ -286,8 +287,9 @@ static int dn_short_output(struct neighbour *neigh, struct sock *sk,
skb_reset_network_header(skb);
return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, sk, skb,
NULL, neigh->dev, dn_neigh_output_packet);
return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING,
&init_net, sk, skb, NULL, neigh->dev,
dn_neigh_output_packet);
}
/*
@ -327,8 +329,9 @@ static int dn_phase3_output(struct neighbour *neigh, struct sock *sk,
skb_reset_network_header(skb);
return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, sk, skb,
NULL, neigh->dev, dn_neigh_output_packet);
return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING,
&init_net, sk, skb, NULL, neigh->dev,
dn_neigh_output_packet);
}
int dn_to_neigh_output(struct sock *sk, struct sk_buff *skb)

4
net/decnet/dn_nsp_in.c
View file

@ -814,8 +814,8 @@ static int dn_nsp_rx_packet(struct sock *sk2, struct sk_buff *skb)
int dn_nsp_rx(struct sk_buff *skb)
{
return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_IN, NULL, skb,
skb->dev, NULL,
return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_IN,
&init_net, NULL, skb, skb->dev, NULL,
dn_nsp_rx_packet);
}

24
net/decnet/dn_route.c
View file

@ -573,8 +573,8 @@ static int dn_route_rx_long(struct sk_buff *skb)
ptr++;
cb->hops = *ptr++; /* Visit Count */
return NF_HOOK(NFPROTO_DECNET, NF_DN_PRE_ROUTING, NULL, skb,
skb->dev, NULL,
return NF_HOOK(NFPROTO_DECNET, NF_DN_PRE_ROUTING,
&init_net, NULL, skb, skb->dev, NULL,
dn_route_rx_packet);
drop_it:
@ -601,8 +601,8 @@ static int dn_route_rx_short(struct sk_buff *skb)
ptr += 2;
cb->hops = *ptr & 0x3f;
return NF_HOOK(NFPROTO_DECNET, NF_DN_PRE_ROUTING, NULL, skb,
skb->dev, NULL,
return NF_HOOK(NFPROTO_DECNET, NF_DN_PRE_ROUTING,
&init_net, NULL, skb, skb->dev, NULL,
dn_route_rx_packet);
drop_it:
@ -706,22 +706,22 @@ int dn_route_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type
switch (flags & DN_RT_CNTL_MSK) {
case DN_RT_PKT_HELO:
return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
NULL, skb, skb->dev, NULL,
&init_net, NULL, skb, skb->dev, NULL,
dn_route_ptp_hello);
case DN_RT_PKT_L1RT:
case DN_RT_PKT_L2RT:
return NF_HOOK(NFPROTO_DECNET, NF_DN_ROUTE,
NULL, skb, skb->dev, NULL,
&init_net, NULL, skb, skb->dev, NULL,
dn_route_discard);
case DN_RT_PKT_ERTH:
return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
NULL, skb, skb->dev, NULL,
&init_net, NULL, skb, skb->dev, NULL,
dn_neigh_router_hello);
case DN_RT_PKT_EEDH:
return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
NULL, skb, skb->dev, NULL,
&init_net, NULL, skb, skb->dev, NULL,
dn_neigh_endnode_hello);
}
} else {
@ -770,8 +770,8 @@ static int dn_output(struct sock *sk, struct sk_buff *skb)
cb->rt_flags |= DN_RT_F_IE;
cb->hops = 0;
return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_OUT, sk, skb,
NULL, dev,
return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_OUT,
&init_net, sk, skb, NULL, dev,
dn_to_neigh_output);
error:
@ -819,8 +819,8 @@ static int dn_forward(struct sk_buff *skb)
if (rt->rt_flags & RTCF_DOREDIRECT)
cb->rt_flags |= DN_RT_F_IE;
return NF_HOOK(NFPROTO_DECNET, NF_DN_FORWARD, NULL, skb,
dev, skb->dev,
return NF_HOOK(NFPROTO_DECNET, NF_DN_FORWARD,
&init_net, NULL, skb, dev, skb->dev,
dn_to_neigh_output);
drop:

10
net/ipv4/arp.c
View file

@ -632,8 +632,9 @@ static int arp_xmit_finish(struct sock *sk, struct sk_buff *skb)
void arp_xmit(struct sk_buff *skb)
{
/* Send it off, maybe filter it using firewalling first. */
NF_HOOK(NFPROTO_ARP, NF_ARP_OUT, NULL, skb,
NULL, skb->dev, arp_xmit_finish);
NF_HOOK(NFPROTO_ARP, NF_ARP_OUT,
dev_net(skb->dev), NULL, skb, NULL, skb->dev,
arp_xmit_finish);
}
EXPORT_SYMBOL(arp_xmit);
@ -897,8 +898,9 @@ static int arp_rcv(struct sk_buff *skb, struct net_device *dev,
memset(NEIGH_CB(skb), 0, sizeof(struct neighbour_cb));
return NF_HOOK(NFPROTO_ARP, NF_ARP_IN, NULL, skb,
dev, NULL, arp_process);
return NF_HOOK(NFPROTO_ARP, NF_ARP_IN,
dev_net(dev), NULL, skb, dev, NULL,
arp_process);
consumeskb:
consume_skb(skb);

5
net/ipv4/ip_forward.c
View file

@ -146,8 +146,9 @@ int ip_forward(struct sk_buff *skb)
skb->priority = rt_tos2priority(iph->tos);
return NF_HOOK(NFPROTO_IPV4, NF_INET_FORWARD, NULL, skb,
skb->dev, rt->dst.dev, ip_forward_finish);
return NF_HOOK(NFPROTO_IPV4, NF_INET_FORWARD,
net, NULL, skb, skb->dev, rt->dst.dev,
ip_forward_finish);
sr_failed:
/*

8
net/ipv4/ip_input.c
View file

@ -254,8 +254,8 @@ int ip_local_deliver(struct sk_buff *skb)
return 0;
}
return NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_IN, NULL, skb,
skb->dev, NULL,
return NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_IN,
dev_net(skb->dev), NULL, skb, skb->dev, NULL,
ip_local_deliver_finish);
}
@ -453,8 +453,8 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
/* Must drop socket now because of tproxy. */
skb_orphan(skb);
return NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, NULL, skb,
dev, NULL,
return NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING,
net, NULL, skb, dev, NULL,
ip_rcv_finish);
csum_error:

22
net/ipv4/ip_output.c
View file

@ -97,12 +97,14 @@ EXPORT_SYMBOL(ip_send_check);
static int __ip_local_out_sk(struct sock *sk, struct sk_buff *skb)
{
struct net *net = dev_net(skb_dst(skb)->dev);
struct iphdr *iph = ip_hdr(skb);
iph->tot_len = htons(skb->len);
ip_send_check(iph);
return nf_hook(NFPROTO_IPV4, NF_INET_LOCAL_OUT, sk, skb, NULL,
skb_dst(skb)->dev, dst_output);
return nf_hook(NFPROTO_IPV4, NF_INET_LOCAL_OUT,
net, sk, skb, NULL, skb_dst(skb)->dev,
dst_output);
}
int __ip_local_out(struct sk_buff *skb)
@ -322,7 +324,7 @@ int ip_mc_output(struct sock *sk, struct sk_buff *skb)
struct sk_buff *newskb = skb_clone(skb, GFP_ATOMIC);
if (newskb)
NF_HOOK(NFPROTO_IPV4, NF_INET_POST_ROUTING,
sk, newskb, NULL, newskb->dev,
net, sk, newskb, NULL, newskb->dev,
dev_loopback_xmit);
}
@ -337,12 +339,14 @@ int ip_mc_output(struct sock *sk, struct sk_buff *skb)
if (rt->rt_flags&RTCF_BROADCAST) {
struct sk_buff *newskb = skb_clone(skb, GFP_ATOMIC);
if (newskb)
NF_HOOK(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, newskb,
NULL, newskb->dev, dev_loopback_xmit);
NF_HOOK(NFPROTO_IPV4, NF_INET_POST_ROUTING,
net, sk, newskb, NULL, newskb->dev,
dev_loopback_xmit);
}
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, skb, NULL,
skb->dev, ip_finish_output,
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING,
net, sk, skb, NULL, skb->dev,
ip_finish_output,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}
@ -356,8 +360,8 @@ int ip_output(struct sock *sk, struct sk_buff *skb)
skb->dev = dev;
skb->protocol = htons(ETH_P_IP);
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, skb,
NULL, dev,
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING,
net, sk, skb, NULL, dev,
ip_finish_output,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}

4
net/ipv4/ipmr.c
View file

@ -1788,8 +1788,8 @@ static void ipmr_queue_xmit(struct net *net, struct mr_table *mrt,
* not mrouter) cannot join to more than one interface - it will
* result in receiving multiple packets.
*/
NF_HOOK(NFPROTO_IPV4, NF_INET_FORWARD, NULL, skb,
skb->dev, dev,
NF_HOOK(NFPROTO_IPV4, NF_INET_FORWARD,
net, NULL, skb, skb->dev, dev,
ipmr_forward_finish);
return;

5
net/ipv4/raw.c
View file

@ -411,8 +411,9 @@ static int raw_send_hdrinc(struct sock *sk, struct flowi4 *fl4,
icmp_out_count(net, ((struct icmphdr *)
skb_transport_header(skb))->type);
err = NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_OUT, sk, skb,
NULL, rt->dst.dev, dst_output);
err = NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_OUT,
net, sk, skb, NULL, rt->dst.dev,
dst_output);
if (err > 0)
err = net_xmit_errno(err);
if (err)

4
net/ipv4/xfrm4_input.c
View file

@ -52,8 +52,8 @@ int xfrm4_transport_finish(struct sk_buff *skb, int async)
iph->tot_len = htons(skb->len);
ip_send_check(iph);
NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, NULL, skb,
skb->dev, NULL,
NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING,
dev_net(skb->dev), NULL, skb, skb->dev, NULL,
xfrm4_rcv_encap_finish);
return 0;
}

6
net/ipv4/xfrm4_output.c
View file

@ -96,8 +96,10 @@ static int __xfrm4_output(struct sock *sk, struct sk_buff *skb)
int xfrm4_output(struct sock *sk, struct sk_buff *skb)
{
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, skb,
NULL, skb_dst(skb)->dev, __xfrm4_output,
struct net *net = dev_net(skb_dst(skb)->dev);
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING,
net, sk, skb, NULL, skb_dst(skb)->dev,
__xfrm4_output,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}

8
net/ipv6/ip6_input.c
View file

@ -183,8 +183,8 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
/* Must drop socket now because of tproxy. */
skb_orphan(skb);
return NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, NULL, skb,
dev, NULL,
return NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING,
net, NULL, skb, dev, NULL,
ip6_rcv_finish);
err:
IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INHDRERRORS);
@ -278,8 +278,8 @@ static int ip6_input_finish(struct sock *sk, struct sk_buff *skb)
int ip6_input(struct sk_buff *skb)
{
return NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_IN, NULL, skb,
skb->dev, NULL,
return NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_IN,
dev_net(skb->dev), NULL, skb, skb->dev, NULL,
ip6_input_finish);
}

15
net/ipv6/ip6_output.c
View file

@ -83,7 +83,7 @@ static int ip6_finish_output2(struct sock *sk, struct sk_buff *skb)
*/
if (newskb)
NF_HOOK(NFPROTO_IPV6, NF_INET_POST_ROUTING,
sk, newskb, NULL, newskb->dev,
net, sk, newskb, NULL, newskb->dev,
dev_loopback_xmit);
if (ipv6_hdr(skb)->hop_limit == 0) {
@ -142,8 +142,8 @@ int ip6_output(struct sock *sk, struct sk_buff *skb)
return 0;
}
return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING, sk, skb,
NULL, dev,
return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING,
net, sk, skb, NULL, dev,
ip6_finish_output,
!(IP6CB(skb)->flags & IP6SKB_REROUTED));
}
@ -223,8 +223,9 @@ int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
if ((skb->len <= mtu) || skb->ignore_df || skb_is_gso(skb)) {
IP6_UPD_PO_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_OUT, skb->len);
return NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
NULL, dst->dev, dst_output);
return NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT,
net, sk, skb, NULL, dst->dev,
dst_output);
}
skb->dev = dst->dev;
@ -511,8 +512,8 @@ int ip6_forward(struct sk_buff *skb)
IP6_INC_STATS_BH(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTFORWDATAGRAMS);
IP6_ADD_STATS_BH(net, ip6_dst_idev(dst), IPSTATS_MIB_OUTOCTETS, skb->len);
return NF_HOOK(NFPROTO_IPV6, NF_INET_FORWARD, NULL, skb,
skb->dev, dst->dev,
return NF_HOOK(NFPROTO_IPV6, NF_INET_FORWARD,
net, NULL, skb, skb->dev, dst->dev,
ip6_forward_finish);
error:

4
net/ipv6/ip6mr.c
View file

@ -2064,8 +2064,8 @@ static int ip6mr_forward2(struct net *net, struct mr6_table *mrt,
IP6CB(skb)->flags |= IP6SKB_FORWARDED;
return NF_HOOK(NFPROTO_IPV6, NF_INET_FORWARD, NULL, skb,
skb->dev, dev,
return NF_HOOK(NFPROTO_IPV6, NF_INET_FORWARD,
net, NULL, skb, skb->dev, dev,
ip6mr_forward2_finish);
out_free:

7
net/ipv6/mcast.c
View file

@ -1645,7 +1645,7 @@ static void mld_sendpack(struct sk_buff *skb)
payload_len = skb->len;
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT,
net->ipv6.igmp_sk, skb, NULL, skb->dev,
net, net->ipv6.igmp_sk, skb, NULL, skb->dev,
dst_output);
out:
if (!err) {
@ -2008,8 +2008,9 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
}
skb_dst_set(skb, dst);
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
NULL, skb->dev, dst_output);
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT,
net, sk, skb, NULL, skb->dev,
dst_output);
out:
if (!err) {
ICMP6MSGOUT_INC_STATS(net, idev, type);

4
net/ipv6/ndisc.c
View file

@ -463,8 +463,8 @@ static void ndisc_send_skb(struct sk_buff *skb,
idev = __in6_dev_get(dst->dev);
IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
NULL, dst->dev,
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT,
net, sk, skb, NULL, dst->dev,
dst_output);
if (!err) {
ICMP6MSGOUT_INC_STATS(net, idev, type);

2
net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
View file

@ -74,7 +74,7 @@ static unsigned int ipv6_defrag(const struct nf_hook_ops *ops,
nf_ct_frag6_consume_orig(reasm);
NF_HOOK_THRESH(NFPROTO_IPV6, ops->hooknum, state->sk, reasm,
NF_HOOK_THRESH(NFPROTO_IPV6, ops->hooknum, state->net, state->sk, reasm,
state->in, state->out,
state->okfn, NF_IP6_PRI_CONNTRACK_DEFRAG + 1);

6
net/ipv6/output_core.c
View file

@ -140,6 +140,7 @@ EXPORT_SYMBOL(ip6_dst_hoplimit);
static int __ip6_local_out_sk(struct sock *sk, struct sk_buff *skb)
{
struct net *net = dev_net(skb_dst(skb)->dev);
int len;
len = skb->len - sizeof(struct ipv6hdr);
@ -148,8 +149,9 @@ static int __ip6_local_out_sk(struct sock *sk, struct sk_buff *skb)
ipv6_hdr(skb)->payload_len = htons(len);
IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);
return nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
NULL, skb_dst(skb)->dev, dst_output);
return nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT,
net, sk, skb, NULL, skb_dst(skb)->dev,
dst_output);
}
int __ip6_local_out(struct sk_buff *skb)

2
net/ipv6/raw.c
View file

@ -654,7 +654,7 @@ static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, int length,
goto error_fault;
IP6_UPD_PO_STATS(net, rt->rt6i_idev, IPSTATS_MIB_OUT, skb->len);
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, net, sk, skb,
NULL, rt->dst.dev, dst_output);
if (err > 0)
err = net_xmit_errno(err);

4
net/ipv6/xfrm6_input.c
View file

@ -42,8 +42,8 @@ int xfrm6_transport_finish(struct sk_buff *skb, int async)
ipv6_hdr(skb)->payload_len = htons(skb->len);
__skb_push(skb, skb->data - skb_network_header(skb));
NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, NULL, skb,
skb->dev, NULL,
NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING,
dev_net(skb->dev), NULL, skb, skb->dev, NULL,
ip6_rcv_finish);
return -1;
}

6
net/ipv6/xfrm6_output.c
View file

@ -168,7 +168,9 @@ static int __xfrm6_output(struct sock *sk, struct sk_buff *skb)
int xfrm6_output(struct sock *sk, struct sk_buff *skb)
{
return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING, sk, skb,
NULL, skb_dst(skb)->dev, __xfrm6_output,
struct net *net = dev_net(skb_dst(skb)->dev);
return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING,
net, sk, skb, NULL, skb_dst(skb)->dev,
__xfrm6_output,
!(IP6CB(skb)->flags & IP6SKB_REROUTED));
}

4
net/netfilter/ipvs/ip_vs_xmit.c
View file

@ -573,7 +573,7 @@ static inline int ip_vs_nat_send_or_cont(int pf, struct sk_buff *skb,
skb_forward_csum(skb);
if (!skb->sk)
skb_sender_cpu_clear(skb);
NF_HOOK(pf, NF_INET_LOCAL_OUT, NULL, skb,
NF_HOOK(pf, NF_INET_LOCAL_OUT, ip_vs_conn_net(cp), NULL, skb,
NULL, skb_dst(skb)->dev, dst_output);
} else
ret = NF_ACCEPT;
@ -595,7 +595,7 @@ static inline int ip_vs_send_or_cont(int pf, struct sk_buff *skb,
skb_forward_csum(skb);
if (!skb->sk)
skb_sender_cpu_clear(skb);
NF_HOOK(pf, NF_INET_LOCAL_OUT, NULL, skb,
NF_HOOK(pf, NF_INET_LOCAL_OUT, ip_vs_conn_net(cp), NULL, skb,
NULL, skb_dst(skb)->dev, dst_output);
} else
ret = NF_ACCEPT;

3
net/xfrm/xfrm_output.c
View file

@ -131,6 +131,7 @@ static int xfrm_output_one(struct sk_buff *skb, int err)
int xfrm_output_resume(struct sk_buff *skb, int err)
{
struct net *net = xs_net(skb_dst(skb)->xfrm);
while (likely((err = xfrm_output_one(skb, err)) == 0)) {
nf_reset(skb);
@ -142,7 +143,7 @@ int xfrm_output_resume(struct sk_buff *skb, int err)
return dst_output(skb->sk, skb);
err = nf_hook(skb_dst(skb)->ops->family,
NF_INET_POST_ROUTING, skb->sk, skb,
NF_INET_POST_ROUTING, net, skb->sk, skb,
NULL, skb_dst(skb)->dev, xfrm_output2);
if (unlikely(err != 1))
goto out;