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netfilter: Pass socket pointer down through okfn().

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On the output paths in particular, we have to sometimes deal with two
socket contexts.  First, and usually skb->sk, is the local socket that
generated the frame.

And second, is potentially the socket used to control a tunneling
socket, such as one the encapsulates using UDP.

We do not want to disassociate skb->sk when encapsulating in order
to fix this, because that would break socket memory accounting.

The most extreme case where this can cause huge problems is an
AF_PACKET socket transmitting over a vxlan device.  We hit code
paths doing checks that assume they are dealing with an ipv4
socket, but are actually operating upon the AF_PACKET one.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Miller 2015-04-05 22:19:04 -04:00 committed by David S. Miller
parent 1c984f8a5d
commit 7026b1ddb6
39 changed files with 277 additions and 218 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
include/linux/netdevice.h
View File

@ -2165,8 +2165,12 @@ int dev_open(struct net_device *dev);
int dev_close(struct net_device *dev);
int dev_close_many(struct list_head *head, bool unlink);
void dev_disable_lro(struct net_device *dev);
int dev_loopback_xmit(struct sk_buff *newskb);
int dev_queue_xmit(struct sk_buff *skb);
int dev_loopback_xmit(struct sock *sk, struct sk_buff *newskb);
int dev_queue_xmit_sk(struct sock *sk, struct sk_buff *skb);
static inline int dev_queue_xmit(struct sk_buff *skb)
{
return dev_queue_xmit_sk(skb->sk, skb);
}
int dev_queue_xmit_accel(struct sk_buff *skb, void *accel_priv);
int register_netdevice(struct net_device *dev);
void unregister_netdevice_queue(struct net_device *dev, struct list_head *head);
@ -2927,7 +2931,11 @@ static inline void dev_consume_skb_any(struct sk_buff *skb)
int netif_rx(struct sk_buff *skb);
int netif_rx_ni(struct sk_buff *skb);
int netif_receive_skb(struct sk_buff *skb);
int netif_receive_skb_sk(struct sock *sk, struct sk_buff *skb);
static inline int netif_receive_skb(struct sk_buff *skb)
{
return netif_receive_skb_sk(skb->sk, skb);
}
gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb);
void napi_gro_flush(struct napi_struct *napi, bool flush_old);
struct sk_buff *napi_get_frags(struct napi_struct *napi);

62
include/linux/netfilter.h
View File

@ -54,7 +54,7 @@ struct nf_hook_state {
struct net_device *in;
struct net_device *out;
struct sock *sk;
int (*okfn)(struct sk_buff *);
int (*okfn)(struct sock *, struct sk_buff *);
};
static inline void nf_hook_state_init(struct nf_hook_state *p,
@ -63,7 +63,7 @@ static inline void nf_hook_state_init(struct nf_hook_state *p,
struct net_device *indev,
struct net_device *outdev,
struct sock *sk,
int (*okfn)(struct sk_buff *))
int (*okfn)(struct sock *, struct sk_buff *))
{
p->hook = hook;
p->thresh = thresh;
@ -156,26 +156,29 @@ int nf_hook_slow(struct sk_buff *skb, struct nf_hook_state *state);
* value indicates the packet has been consumed by the hook.
*/
static inline int nf_hook_thresh(u_int8_t pf, unsigned int hook,
struct sock *sk,
struct sk_buff *skb,
struct net_device *indev,
struct net_device *outdev,
int (*okfn)(struct sk_buff *), int thresh)
int (*okfn)(struct sock *, struct sk_buff *),
int thresh)
{
if (nf_hooks_active(pf, hook)) {
struct nf_hook_state state;
nf_hook_state_init(&state, hook, thresh, pf,
indev, outdev, NULL, okfn);
indev, outdev, sk, okfn);
return nf_hook_slow(skb, &state);
}
return 1;
}
static inline int nf_hook(u_int8_t pf, unsigned int hook, struct sk_buff *skb,
struct net_device *indev, struct net_device *outdev,
int (*okfn)(struct sk_buff *))
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,
int (*okfn)(struct sock *, struct sk_buff *))
{
return nf_hook_thresh(pf, hook, skb, indev, outdev, okfn, INT_MIN);
return nf_hook_thresh(pf, hook, sk, skb, indev, outdev, okfn, INT_MIN);
}
/* Activate hook; either okfn or kfree_skb called, unless a hook
@ -196,35 +199,36 @@ static inline int nf_hook(u_int8_t pf, unsigned int hook, struct sk_buff *skb,
*/
static inline int
NF_HOOK_THRESH(uint8_t pf, unsigned int hook, struct sk_buff *skb,
struct net_device *in, struct net_device *out,
int (*okfn)(struct sk_buff *), int thresh)
NF_HOOK_THRESH(uint8_t pf, unsigned int hook, struct sock *sk,
struct sk_buff *skb, struct net_device *in,
struct net_device *out,
int (*okfn)(struct sock *, struct sk_buff *), int thresh)
{
int ret = nf_hook_thresh(pf, hook, skb, in, out, okfn, thresh);
int ret = nf_hook_thresh(pf, hook, sk, skb, in, out, okfn, thresh);
if (ret == 1)
ret = okfn(skb);
ret = okfn(sk, skb);
return ret;
}
static inline int
NF_HOOK_COND(uint8_t pf, unsigned int hook, struct sk_buff *skb,
struct net_device *in, struct net_device *out,
int (*okfn)(struct sk_buff *), bool cond)
NF_HOOK_COND(uint8_t pf, unsigned int hook, struct sock *sk,
struct sk_buff *skb, struct net_device *in, struct net_device *out,
int (*okfn)(struct sock *, struct sk_buff *), bool cond)
{
int ret;
if (!cond ||
((ret = nf_hook_thresh(pf, hook, skb, in, out, okfn, INT_MIN)) == 1))
ret = okfn(skb);
((ret = nf_hook_thresh(pf, hook, sk, skb, in, out, okfn, INT_MIN)) == 1))
ret = okfn(sk, skb);
return ret;
}
static inline int
NF_HOOK(uint8_t pf, unsigned int hook, struct sk_buff *skb,
NF_HOOK(uint8_t pf, unsigned int hook, struct sock *sk, struct sk_buff *skb,
struct net_device *in, struct net_device *out,
int (*okfn)(struct sk_buff *))
int (*okfn)(struct sock *, struct sk_buff *))
{
return NF_HOOK_THRESH(pf, hook, skb, in, out, okfn, INT_MIN);
return NF_HOOK_THRESH(pf, hook, sk, skb, in, out, okfn, INT_MIN);
}
/* Call setsockopt() */
@ -324,19 +328,21 @@ nf_nat_decode_session(struct sk_buff *skb, struct flowi *fl, u_int8_t family)
}
#else /* !CONFIG_NETFILTER */
#define NF_HOOK(pf, hook, skb, indev, outdev, okfn) (okfn)(skb)
#define NF_HOOK_COND(pf, hook, skb, indev, outdev, okfn, cond) (okfn)(skb)
#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_thresh(u_int8_t pf, unsigned int hook,
struct sock *sk,
struct sk_buff *skb,
struct net_device *indev,
struct net_device *outdev,
int (*okfn)(struct sk_buff *), int thresh)
int (*okfn)(struct sock *sk, struct sk_buff *), int thresh)
{
return okfn(skb);
return okfn(sk, skb);
}
static inline int nf_hook(u_int8_t pf, unsigned int hook, struct sk_buff *skb,
struct net_device *indev, struct net_device *outdev,
int (*okfn)(struct sk_buff *))
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,
int (*okfn)(struct sock *, struct sk_buff *))
{
return 1;
}

2
include/linux/netfilter_bridge.h
View File

@ -30,7 +30,7 @@ static inline unsigned int nf_bridge_mtu_reduction(const struct sk_buff *skb)
return 0;
}
int br_handle_frame_finish(struct sk_buff *skb);
int br_handle_frame_finish(struct sock *sk, struct sk_buff *skb);
static inline void br_drop_fake_rtable(struct sk_buff *skb)
{

6
include/net/dn_neigh.h
View File

@ -18,11 +18,11 @@ struct dn_neigh {
void dn_neigh_init(void);
void dn_neigh_cleanup(void);
int dn_neigh_router_hello(struct sk_buff *skb);
int dn_neigh_endnode_hello(struct sk_buff *skb);
int dn_neigh_router_hello(struct sock *sk, struct sk_buff *skb);
int dn_neigh_endnode_hello(struct sock *sk, struct sk_buff *skb);
void dn_neigh_pointopoint_hello(struct sk_buff *skb);
int dn_neigh_elist(struct net_device *dev, unsigned char *ptr, int n);
int dn_to_neigh_output(struct sk_buff *skb);
int dn_to_neigh_output(struct sock *sk, struct sk_buff *skb);
extern struct neigh_table dn_neigh_table;

3
include/net/ip.h
View File

@ -108,7 +108,8 @@ int ip_local_deliver(struct sk_buff *skb);
int ip_mr_input(struct sk_buff *skb);
int ip_output(struct sock *sk, struct sk_buff *skb);
int ip_mc_output(struct sock *sk, struct sk_buff *skb);
int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));
int ip_fragment(struct sock *sk, struct sk_buff *skb,
int (*output)(struct sock *, struct sk_buff *));
int ip_do_nat(struct sk_buff *skb);
void ip_send_check(struct iphdr *ip);
int __ip_local_out(struct sk_buff *skb);

3
include/net/ip6_route.h
View File

@ -170,7 +170,8 @@ static inline bool ipv6_anycast_destination(const struct sk_buff *skb)
return rt->rt6i_flags & RTF_ANYCAST;
}
int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));
int ip6_fragment(struct sock *sk, struct sk_buff *skb,
int (*output)(struct sock *, struct sk_buff *));
static inline int ip6_skb_dst_mtu(struct sk_buff *skb)
{

2
include/net/ipv6.h
View File

@ -769,7 +769,7 @@ static inline u8 ip6_tclass(__be32 flowinfo)
int ipv6_rcv(struct sk_buff *skb, struct net_device *dev,
struct packet_type *pt, struct net_device *orig_dev);
int ip6_rcv_finish(struct sk_buff *skb);
int ip6_rcv_finish(struct sock *sk, struct sk_buff *skb);
/*
* upper-layer output functions

8
include/net/xfrm.h
View File

@ -332,7 +332,7 @@ struct xfrm_state_afinfo {
int (*tmpl_sort)(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n);
int (*state_sort)(struct xfrm_state **dst, struct xfrm_state **src, int n);
int (*output)(struct sock *sk, struct sk_buff *skb);
int (*output_finish)(struct sk_buff *skb);
int (*output_finish)(struct sock *sk, struct sk_buff *skb);
int (*extract_input)(struct xfrm_state *x,
struct sk_buff *skb);
int (*extract_output)(struct xfrm_state *x,
@ -1503,7 +1503,7 @@ int xfrm_prepare_input(struct xfrm_state *x, struct sk_buff *skb);
int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type);
int xfrm_input_resume(struct sk_buff *skb, int nexthdr);
int xfrm_output_resume(struct sk_buff *skb, int err);
int xfrm_output(struct sk_buff *skb);
int xfrm_output(struct sock *sk, struct sk_buff *skb);
int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb);
void xfrm_local_error(struct sk_buff *skb, int mtu);
int xfrm4_extract_header(struct sk_buff *skb);
@ -1524,7 +1524,7 @@ static inline int xfrm4_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi)
int xfrm4_extract_output(struct xfrm_state *x, struct sk_buff *skb);
int xfrm4_prepare_output(struct xfrm_state *x, struct sk_buff *skb);
int xfrm4_output(struct sock *sk, struct sk_buff *skb);
int xfrm4_output_finish(struct sk_buff *skb);
int xfrm4_output_finish(struct sock *sk, struct sk_buff *skb);
int xfrm4_rcv_cb(struct sk_buff *skb, u8 protocol, int err);
int xfrm4_protocol_register(struct xfrm4_protocol *handler, unsigned char protocol);
int xfrm4_protocol_deregister(struct xfrm4_protocol *handler, unsigned char protocol);
@ -1549,7 +1549,7 @@ __be32 xfrm6_tunnel_spi_lookup(struct net *net, const xfrm_address_t *saddr);
int xfrm6_extract_output(struct xfrm_state *x, struct sk_buff *skb);
int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb);
int xfrm6_output(struct sock *sk, struct sk_buff *skb);
int xfrm6_output_finish(struct sk_buff *skb);
int xfrm6_output_finish(struct sock *sk, struct sk_buff *skb);
int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb,
u8 **prevhdr);

13
net/bridge/br_forward.c
View File

@ -35,7 +35,7 @@ static inline int should_deliver(const struct net_bridge_port *p,
p->state == BR_STATE_FORWARDING;
}
int br_dev_queue_push_xmit(struct sk_buff *skb)
int br_dev_queue_push_xmit(struct sock *sk, struct sk_buff *skb)
{
if (!is_skb_forwardable(skb->dev, skb)) {
kfree_skb(skb);
@ -49,9 +49,10 @@ int br_dev_queue_push_xmit(struct sk_buff *skb)
}
EXPORT_SYMBOL_GPL(br_dev_queue_push_xmit);
int br_forward_finish(struct sk_buff *skb)
int br_forward_finish(struct sock *sk, struct sk_buff *skb)
{
return NF_HOOK(NFPROTO_BRIDGE, NF_BR_POST_ROUTING, skb, NULL, skb->dev,
return NF_HOOK(NFPROTO_BRIDGE, NF_BR_POST_ROUTING, sk, skb,
NULL, skb->dev,
br_dev_queue_push_xmit);
}
@ -75,7 +76,8 @@ static void __br_deliver(const struct net_bridge_port *to, struct sk_buff *skb)
return;
}
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, NULL, skb,
NULL, skb->dev,
br_forward_finish);
}
@ -96,7 +98,8 @@ 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, skb, indev, skb->dev,
NF_HOOK(NFPROTO_BRIDGE, NF_BR_FORWARD, NULL, skb,
indev, skb->dev,
br_forward_finish);
}

16
net/bridge/br_input.c
View File

@ -55,8 +55,9 @@ 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, skb, indev, NULL,
netif_receive_skb);
return NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, NULL, skb,
indev, NULL,
netif_receive_skb_sk);
}
static void br_do_proxy_arp(struct sk_buff *skb, struct net_bridge *br,
@ -119,7 +120,7 @@ static void br_do_proxy_arp(struct sk_buff *skb, struct net_bridge *br,
}
/* note: already called with rcu_read_lock */
int br_handle_frame_finish(struct sk_buff *skb)
int br_handle_frame_finish(struct sock *sk, struct sk_buff *skb)
{
const unsigned char *dest = eth_hdr(skb)->h_dest;
struct net_bridge_port *p = br_port_get_rcu(skb->dev);
@ -207,7 +208,7 @@ drop:
EXPORT_SYMBOL_GPL(br_handle_frame_finish);
/* note: already called with rcu_read_lock */
static int br_handle_local_finish(struct sk_buff *skb)
static int br_handle_local_finish(struct sock *sk, struct sk_buff *skb)
{
struct net_bridge_port *p = br_port_get_rcu(skb->dev);
u16 vid = 0;
@ -277,8 +278,8 @@ 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, skb, skb->dev,
NULL, br_handle_local_finish)) {
if (NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_IN, NULL, skb,
skb->dev, NULL, br_handle_local_finish)) {
return RX_HANDLER_CONSUMED; /* consumed by filter */
} else {
*pskb = skb;
@ -302,7 +303,8 @@ forward:
if (ether_addr_equal(p->br->dev->dev_addr, dest))
skb->pkt_type = PACKET_HOST;
NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, skb, skb->dev, NULL,
NF_HOOK(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, NULL, skb,
skb->dev, NULL,
br_handle_frame_finish);
break;
default:

3
net/bridge/br_multicast.c
View File

@ -814,7 +814,8 @@ static void __br_multicast_send_query(struct net_bridge *br,
if (port) {
skb->dev = port->dev;
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, NULL, skb,
NULL, skb->dev,
br_dev_queue_push_xmit);
} else {
br_multicast_select_own_querier(br, ip, skb);

56
net/bridge/br_netfilter.c
View File

@ -261,7 +261,7 @@ static void nf_bridge_update_protocol(struct sk_buff *skb)
/* PF_BRIDGE/PRE_ROUTING *********************************************/
/* Undo the changes made for ip6tables PREROUTING and continue the
* bridge PRE_ROUTING hook. */
static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
static int br_nf_pre_routing_finish_ipv6(struct sock *sk, struct sk_buff *skb)
{
struct nf_bridge_info *nf_bridge = skb->nf_bridge;
struct rtable *rt;
@ -282,7 +282,8 @@ static int br_nf_pre_routing_finish_ipv6(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, skb, skb->dev, NULL,
NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, sk, skb,
skb->dev, NULL,
br_handle_frame_finish, 1);
return 0;
@ -293,7 +294,7 @@ static int br_nf_pre_routing_finish_ipv6(struct sk_buff *skb)
* don't, we use the neighbour framework to find out. In both cases, we make
* sure that br_handle_frame_finish() is called afterwards.
*/
static int br_nf_pre_routing_finish_bridge(struct sk_buff *skb)
static int br_nf_pre_routing_finish_bridge(struct sock *sk, struct sk_buff *skb)
{
struct nf_bridge_info *nf_bridge = skb->nf_bridge;
struct neighbour *neigh;
@ -310,7 +311,7 @@ static int br_nf_pre_routing_finish_bridge(struct sk_buff *skb)
if (neigh->hh.hh_len) {
neigh_hh_bridge(&neigh->hh, skb);
skb->dev = nf_bridge->physindev;
ret = br_handle_frame_finish(skb);
ret = br_handle_frame_finish(sk, skb);
} else {
/* the neighbour function below overwrites the complete
* MAC header, so we save the Ethernet source address and
@ -387,7 +388,7 @@ static bool dnat_took_place(const struct sk_buff *skb)
* device, we proceed as if ip_route_input() succeeded. If it differs from the
* logical bridge port or if ip_route_output_key() fails we drop the packet.
*/
static int br_nf_pre_routing_finish(struct sk_buff *skb)
static int br_nf_pre_routing_finish(struct sock *sk, struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
struct iphdr *iph = ip_hdr(skb);
@ -440,7 +441,7 @@ bridged_dnat:
nf_bridge_push_encap_header(skb);
NF_HOOK_THRESH(NFPROTO_BRIDGE,
NF_BR_PRE_ROUTING,
skb, skb->dev, NULL,
sk, skb, skb->dev, NULL,
br_nf_pre_routing_finish_bridge,
1);
return 0;
@ -460,7 +461,8 @@ bridged_dnat:
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, skb, skb->dev, NULL,
NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_PRE_ROUTING, sk, skb,
skb->dev, NULL,
br_handle_frame_finish, 1);
return 0;
@ -596,7 +598,8 @@ static unsigned int br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops,
return NF_DROP;
skb->protocol = htons(ETH_P_IPV6);
NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, skb, skb->dev, NULL,
NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, state->sk, skb,
skb->dev, NULL,
br_nf_pre_routing_finish_ipv6);
return NF_STOLEN;
@ -651,7 +654,8 @@ 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, skb, skb->dev, NULL,
NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, state->sk, skb,
skb->dev, NULL,
br_nf_pre_routing_finish);
return NF_STOLEN;
@ -674,7 +678,7 @@ static unsigned int br_nf_local_in(const struct nf_hook_ops *ops,
}
/* PF_BRIDGE/FORWARD *************************************************/
static int br_nf_forward_finish(struct sk_buff *skb)
static int br_nf_forward_finish(struct sock *sk, struct sk_buff *skb)
{
struct nf_bridge_info *nf_bridge = skb->nf_bridge;
struct net_device *in;
@ -691,8 +695,8 @@ static int br_nf_forward_finish(struct sk_buff *skb)
}
nf_bridge_push_encap_header(skb);
NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_FORWARD, skb, in,
skb->dev, br_forward_finish, 1);
NF_HOOK_THRESH(NFPROTO_BRIDGE, NF_BR_FORWARD, sk, skb,
in, skb->dev, br_forward_finish, 1);
return 0;
}
@ -746,7 +750,8 @@ 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, skb, brnf_get_logical_dev(skb, state->in),
NF_HOOK(pf, NF_INET_FORWARD, NULL, skb,
brnf_get_logical_dev(skb, state->in),
parent, br_nf_forward_finish);
return NF_STOLEN;
@ -780,8 +785,8 @@ 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, skb, state->in,
state->out, br_nf_forward_finish);
NF_HOOK(NFPROTO_ARP, NF_ARP_FORWARD, state->sk, skb,
state->in, state->out, br_nf_forward_finish);
return NF_STOLEN;
}
@ -804,24 +809,24 @@ static bool nf_bridge_copy_header(struct sk_buff *skb)
return true;
}
static int br_nf_push_frag_xmit(struct sk_buff *skb)
static int br_nf_push_frag_xmit(struct sock *sk, struct sk_buff *skb)
{
if (!nf_bridge_copy_header(skb)) {
kfree_skb(skb);
return 0;
}
return br_dev_queue_push_xmit(skb);
return br_dev_queue_push_xmit(sk, skb);
}
static int br_nf_dev_queue_xmit(struct sk_buff *skb)
static int br_nf_dev_queue_xmit(struct sock *sk, struct sk_buff *skb)
{
int ret;
int frag_max_size;
unsigned int mtu_reserved;
if (skb_is_gso(skb) || skb->protocol != htons(ETH_P_IP))
return br_dev_queue_push_xmit(skb);
return br_dev_queue_push_xmit(sk, skb);
mtu_reserved = nf_bridge_mtu_reduction(skb);
/* This is wrong! We should preserve the original fragment
@ -833,16 +838,16 @@ static int br_nf_dev_queue_xmit(struct sk_buff *skb)
/* Drop invalid packet */
return NF_DROP;
IPCB(skb)->frag_max_size = frag_max_size;
ret = ip_fragment(skb, br_nf_push_frag_xmit);
ret = ip_fragment(sk, skb, br_nf_push_frag_xmit);
} else
ret = br_dev_queue_push_xmit(skb);
ret = br_dev_queue_push_xmit(sk, skb);
return ret;
}
#else
static int br_nf_dev_queue_xmit(struct sk_buff *skb)
static int br_nf_dev_queue_xmit(struct sock *sk, struct sk_buff *skb)
{
return br_dev_queue_push_xmit(skb);
return br_dev_queue_push_xmit(sk, skb);
}
#endif
@ -887,7 +892,8 @@ 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, skb, NULL, realoutdev,
NF_HOOK(pf, NF_INET_POST_ROUTING, state->sk, skb,
NULL, realoutdev,
br_nf_dev_queue_xmit);
return NF_STOLEN;
@ -927,7 +933,7 @@ static void br_nf_pre_routing_finish_bridge_slow(struct sk_buff *skb)
skb_copy_to_linear_data_offset(skb, -(ETH_HLEN-ETH_ALEN),
skb->nf_bridge->data, ETH_HLEN-ETH_ALEN);
skb->dev = nf_bridge->physindev;
br_handle_frame_finish(skb);
br_handle_frame_finish(NULL, skb);
}
static int br_nf_dev_xmit(struct sk_buff *skb)

6
net/bridge/br_private.h
View File

@ -410,10 +410,10 @@ int br_fdb_external_learn_del(struct net_bridge *br, struct net_bridge_port *p,
/* br_forward.c */
void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb);
int br_dev_queue_push_xmit(struct sk_buff *skb);
int br_dev_queue_push_xmit(struct sock *sk, struct sk_buff *skb);
void br_forward(const struct net_bridge_port *to,
struct sk_buff *skb, struct sk_buff *skb0);
int br_forward_finish(struct sk_buff *skb);
int br_forward_finish(struct sock *sk, struct sk_buff *skb);
void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast);
void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
struct sk_buff *skb2, bool unicast);
@ -431,7 +431,7 @@ void br_port_flags_change(struct net_bridge_port *port, unsigned long mask);
void br_manage_promisc(struct net_bridge *br);
/* br_input.c */
int br_handle_frame_finish(struct sk_buff *skb);
int br_handle_frame_finish(struct sock *sk, struct sk_buff *skb);
rx_handler_result_t br_handle_frame(struct sk_buff **pskb);
static inline bool br_rx_handler_check_rcu(const struct net_device *dev)

5
net/bridge/br_stp_bpdu.c
View File

@ -54,8 +54,9 @@ static void br_send_bpdu(struct net_bridge_port *p,
skb_reset_mac_header(skb);
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, skb, NULL, skb->dev,
dev_queue_xmit);
NF_HOOK(NFPROTO_BRIDGE, NF_BR_LOCAL_OUT, NULL, skb,
NULL, skb->dev,
dev_queue_xmit_sk);
}
static inline void br_set_ticks(unsigned char *dest, int j)

10
net/core/dev.c
View File

@ -2879,7 +2879,7 @@ EXPORT_SYMBOL(xmit_recursion);
* dev_loopback_xmit - loop back @skb
* @skb: buffer to transmit
*/
int dev_loopback_xmit(struct sk_buff *skb)
int dev_loopback_xmit(struct sock *sk, struct sk_buff *skb)
{
skb_reset_mac_header(skb);
__skb_pull(skb, skb_network_offset(skb));
@ -3017,11 +3017,11 @@ out:
return rc;
}
int dev_queue_xmit(struct sk_buff *skb)
int dev_queue_xmit_sk(struct sock *sk, struct sk_buff *skb)
{
return __dev_queue_xmit(skb, NULL);
}
EXPORT_SYMBOL(dev_queue_xmit);
EXPORT_SYMBOL(dev_queue_xmit_sk);
int dev_queue_xmit_accel(struct sk_buff *skb, void *accel_priv)
{
@ -3853,13 +3853,13 @@ static int netif_receive_skb_internal(struct sk_buff *skb)
* NET_RX_SUCCESS: no congestion
* NET_RX_DROP: packet was dropped
*/
int netif_receive_skb(struct sk_buff *skb)
int netif_receive_skb_sk(struct sock *sk, struct sk_buff *skb)
{
trace_netif_receive_skb_entry(skb);
return netif_receive_skb_internal(skb);
}
EXPORT_SYMBOL(netif_receive_skb);
EXPORT_SYMBOL(netif_receive_skb_sk);
/* Network device is going away, flush any packets still pending
* Called with irqs disabled.

35
net/decnet/dn_neigh.c
View File

@ -194,7 +194,7 @@ static int dn_neigh_output(struct neighbour *neigh, struct sk_buff *skb)
return err;
}
static int dn_neigh_output_packet(struct sk_buff *skb)
static int dn_neigh_output_packet(struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct dn_route *rt = (struct dn_route *)dst;
@ -206,7 +206,8 @@ static int dn_neigh_output_packet(struct sk_buff *skb)
/*
* For talking to broadcast devices: Ethernet & PPP
*/
static int dn_long_output(struct neighbour *neigh, struct sk_buff *skb)
static int dn_long_output(struct neighbour *neigh, struct sock *sk,
struct sk_buff *skb)
{
struct net_device *dev = neigh->dev;
int headroom = dev->hard_header_len + sizeof(struct dn_long_packet) + 3;
@ -245,14 +246,15 @@ static int dn_long_output(struct neighbour *neigh, struct sk_buff *skb)
skb_reset_network_header(skb);
return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, skb, NULL,
neigh->dev, dn_neigh_output_packet);
return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, sk, skb,
NULL, neigh->dev, dn_neigh_output_packet);
}
/*
* For talking to pointopoint and multidrop devices: DDCMP and X.25
*/
static int dn_short_output(struct neighbour *neigh, struct sk_buff *skb)
static int dn_short_output(struct neighbour *neigh, struct sock *sk,
struct sk_buff *skb)
{
struct net_device *dev = neigh->dev;
int headroom = dev->hard_header_len + sizeof(struct dn_short_packet) + 2;
@ -284,8 +286,8 @@ static int dn_short_output(struct neighbour *neigh, struct sk_buff *skb)
skb_reset_network_header(skb);
return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, skb, NULL,
neigh->dev, dn_neigh_output_packet);
return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, sk, skb,
NULL, neigh->dev, dn_neigh_output_packet);
}
/*
@ -293,7 +295,8 @@ static int dn_short_output(struct neighbour *neigh, struct sk_buff *skb)
* Phase 3 output is the same as short output, execpt that
* it clears the area bits before transmission.
*/
static int dn_phase3_output(struct neighbour *neigh, struct sk_buff *skb)
static int dn_phase3_output(struct neighbour *neigh, struct sock *sk,
struct sk_buff *skb)
{
struct net_device *dev = neigh->dev;
int headroom = dev->hard_header_len + sizeof(struct dn_short_packet) + 2;
@ -324,11 +327,11 @@ static int dn_phase3_output(struct neighbour *neigh, struct sk_buff *skb)
skb_reset_network_header(skb);
return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, skb, NULL,
neigh->dev, dn_neigh_output_packet);
return NF_HOOK(NFPROTO_DECNET, NF_DN_POST_ROUTING, sk, skb,
NULL, neigh->dev, dn_neigh_output_packet);
}
int dn_to_neigh_output(struct sk_buff *skb)
int dn_to_neigh_output(struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct dn_route *rt = (struct dn_route *) dst;
@ -347,11 +350,11 @@ int dn_to_neigh_output(struct sk_buff *skb)
rcu_read_unlock();
if (dn->flags & DN_NDFLAG_P3)
return dn_phase3_output(neigh, skb);
return dn_phase3_output(neigh, sk, skb);
if (use_long)
return dn_long_output(neigh, skb);
return dn_long_output(neigh, sk, skb);
else
return dn_short_output(neigh, skb);
return dn_short_output(neigh, sk, skb);
}
/*
@ -372,7 +375,7 @@ void dn_neigh_pointopoint_hello(struct sk_buff *skb)
/*
* Ethernet router hello message received
*/
int dn_neigh_router_hello(struct sk_buff *skb)
int dn_neigh_router_hello(struct sock *sk, struct sk_buff *skb)
{
struct rtnode_hello_message *msg = (struct rtnode_hello_message *)skb->data;
@ -434,7 +437,7 @@ int dn_neigh_router_hello(struct sk_buff *skb)
/*
* Endnode hello message received
*/
int dn_neigh_endnode_hello(struct sk_buff *skb)
int dn_neigh_endnode_hello(struct sock *sk, struct sk_buff *skb)
{
struct endnode_hello_message *msg = (struct endnode_hello_message *)skb->data;
struct neighbour *neigh;

5
net/decnet/dn_nsp_in.c
View File

@ -714,7 +714,7 @@ out:
return ret;
}
static int dn_nsp_rx_packet(struct sk_buff *skb)
static int dn_nsp_rx_packet(struct sock *sk2, struct sk_buff *skb)
{
struct dn_skb_cb *cb = DN_SKB_CB(skb);
struct sock *sk = NULL;
@ -814,7 +814,8 @@ free_out:
int dn_nsp_rx(struct sk_buff *skb)
{
return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_IN, skb, skb->dev, NULL,
return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_IN, NULL, skb,
skb->dev, NULL,
dn_nsp_rx_packet);
}

26
net/decnet/dn_route.c
View File

@ -512,7 +512,7 @@ static int dn_return_long(struct sk_buff *skb)
*
* Returns: result of input function if route is found, error code otherwise
*/
static int dn_route_rx_packet(struct sk_buff *skb)
static int dn_route_rx_packet(struct sock *sk, struct sk_buff *skb)
{
struct dn_skb_cb *cb;
int err;
@ -573,7 +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, skb, skb->dev, NULL,
return NF_HOOK(NFPROTO_DECNET, NF_DN_PRE_ROUTING, NULL, skb,
skb->dev, NULL,
dn_route_rx_packet);
drop_it:
@ -600,7 +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, skb, skb->dev, NULL,
return NF_HOOK(NFPROTO_DECNET, NF_DN_PRE_ROUTING, NULL, skb,
skb->dev, NULL,
dn_route_rx_packet);
drop_it:
@ -608,7 +610,7 @@ drop_it:
return NET_RX_DROP;
}
static int dn_route_discard(struct sk_buff *skb)
static int dn_route_discard(struct sock *sk, struct sk_buff *skb)
{
/*
* I know we drop the packet here, but thats considered success in
@ -618,7 +620,7 @@ static int dn_route_discard(struct sk_buff *skb)
return NET_RX_SUCCESS;
}
static int dn_route_ptp_hello(struct sk_buff *skb)
static int dn_route_ptp_hello(struct sock *sk, struct sk_buff *skb)
{
dn_dev_hello(skb);
dn_neigh_pointopoint_hello(skb);
@ -704,22 +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,
skb, skb->dev, NULL,
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,
skb, skb->dev, NULL,
NULL, skb, skb->dev, NULL,
dn_route_discard);
case DN_RT_PKT_ERTH:
return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
skb, skb->dev, NULL,
NULL, skb, skb->dev, NULL,
dn_neigh_router_hello);
case DN_RT_PKT_EEDH:
return NF_HOOK(NFPROTO_DECNET, NF_DN_HELLO,
skb, skb->dev, NULL,
NULL, skb, skb->dev, NULL,
dn_neigh_endnode_hello);
}
} else {
@ -768,7 +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, skb, NULL, dev,
return NF_HOOK(NFPROTO_DECNET, NF_DN_LOCAL_OUT, sk, skb,
NULL, dev,
dn_to_neigh_output);
error:
@ -816,7 +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, skb, dev, skb->dev,
return NF_HOOK(NFPROTO_DECNET, NF_DN_FORWARD, NULL, skb,
dev, skb->dev,
dn_to_neigh_output);
drop:

10
net/ipv4/arp.c
View File

@ -591,7 +591,8 @@ EXPORT_SYMBOL(arp_create);
void arp_xmit(struct sk_buff *skb)
{
/* Send it off, maybe filter it using firewalling first. */
NF_HOOK(NFPROTO_ARP, NF_ARP_OUT, skb, NULL, skb->dev, dev_queue_xmit);
NF_HOOK(NFPROTO_ARP, NF_ARP_OUT, NULL, skb,
NULL, skb->dev, dev_queue_xmit_sk);
}
EXPORT_SYMBOL(arp_xmit);
@ -625,7 +626,7 @@ EXPORT_SYMBOL(arp_send);
* Process an arp request.
*/
static int arp_process(struct sk_buff *skb)
static int arp_process(struct sock *sk, struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
struct in_device *in_dev = __in_dev_get_rcu(dev);
@ -846,7 +847,7 @@ out:
static void parp_redo(struct sk_buff *skb)
{
arp_process(skb);
arp_process(NULL, skb);
}
@ -879,7 +880,8 @@ 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, skb, dev, NULL, arp_process);
return NF_HOOK(NFPROTO_ARP, NF_ARP_IN, NULL, skb,
dev, NULL, arp_process);
consumeskb:
consume_skb(skb);

8
net/ipv4/ip_forward.c
View File

@ -57,7 +57,7 @@ static bool ip_exceeds_mtu(const struct sk_buff *skb, unsigned int mtu)
}
static int ip_forward_finish(struct sk_buff *skb)
static int ip_forward_finish(struct sock *sk, struct sk_buff *skb)
{
struct ip_options *opt = &(IPCB(skb)->opt);
@ -68,7 +68,7 @@ static int ip_forward_finish(struct sk_buff *skb)
ip_forward_options(skb);
skb_sender_cpu_clear(skb);
return dst_output(skb);
return dst_output_sk(sk, skb);
}
int ip_forward(struct sk_buff *skb)
@ -136,8 +136,8 @@ int ip_forward(struct sk_buff *skb)
skb->priority = rt_tos2priority(iph->tos);
return NF_HOOK(NFPROTO_IPV4, NF_INET_FORWARD, skb, skb->dev,
rt->dst.dev, ip_forward_finish);
return NF_HOOK(NFPROTO_IPV4, NF_INET_FORWARD, NULL, skb,
skb->dev, rt->dst.dev, ip_forward_finish);
sr_failed:
/*

10
net/ipv4/ip_input.c
View File

@ -187,7 +187,7 @@ bool ip_call_ra_chain(struct sk_buff *skb)
return false;
}
static int ip_local_deliver_finish(struct sk_buff *skb)
static int ip_local_deliver_finish(struct sock *sk, struct sk_buff *skb)
{
struct net *net = dev_net(skb->dev);
@ -253,7 +253,8 @@ int ip_local_deliver(struct sk_buff *skb)
return 0;
}
return NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_IN, skb, skb->dev, NULL,
return NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_IN, NULL, skb,
skb->dev, NULL,
ip_local_deliver_finish);
}
@ -309,7 +310,7 @@ drop:
int sysctl_ip_early_demux __read_mostly = 1;
EXPORT_SYMBOL(sysctl_ip_early_demux);
static int ip_rcv_finish(struct sk_buff *skb)
static int ip_rcv_finish(struct sock *sk, struct sk_buff *skb)
{
const struct iphdr *iph = ip_hdr(skb);
struct rtable *rt;
@ -451,7 +452,8 @@ 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, skb, dev, NULL,
return NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, NULL, skb,
dev, NULL,
ip_rcv_finish);
csum_error:

45
net/ipv4/ip_output.c
View File

@ -91,14 +91,19 @@ void ip_send_check(struct iphdr *iph)
}
EXPORT_SYMBOL(ip_send_check);
int __ip_local_out(struct sk_buff *skb)
int __ip_local_out_sk(struct sock *sk, struct sk_buff *skb)
{
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, skb, NULL,
skb_dst(skb)->dev, dst_output);
return nf_hook(NFPROTO_IPV4, NF_INET_LOCAL_OUT, sk, skb, NULL,
skb_dst(skb)->dev, dst_output_sk);
}
int __ip_local_out(struct sk_buff *skb)
{
return __ip_local_out_sk(skb->sk, skb);
}
int ip_local_out_sk(struct sock *sk, struct sk_buff *skb)
@ -163,7 +168,7 @@ int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
}
EXPORT_SYMBOL_GPL(ip_build_and_send_pkt);
static inline int ip_finish_output2(struct sk_buff *skb)
static inline int ip_finish_output2(struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct rtable *rt = (struct rtable *)dst;
@ -211,7 +216,7 @@ static inline int ip_finish_output2(struct sk_buff *skb)
return -EINVAL;
}
static int ip_finish_output_gso(struct sk_buff *skb)
static int ip_finish_output_gso(struct sock *sk, struct sk_buff *skb)
{
netdev_features_t features;
struct sk_buff *segs;
@ -220,7 +225,7 @@ static int ip_finish_output_gso(struct sk_buff *skb)
/* common case: locally created skb or seglen is <= mtu */
if (((IPCB(skb)->flags & IPSKB_FORWARDED) == 0) ||
skb_gso_network_seglen(skb) <= ip_skb_dst_mtu(skb))
return ip_finish_output2(skb);
return ip_finish_output2(sk, skb);
/* Slowpath - GSO segment length is exceeding the dst MTU.
*
@ -243,7 +248,7 @@ static int ip_finish_output_gso(struct sk_buff *skb)
int err;
segs->next = NULL;
err = ip_fragment(segs, ip_finish_output2);
err = ip_fragment(sk, segs, ip_finish_output2);
if (err && ret == 0)
ret = err;
@ -253,22 +258,22 @@ static int ip_finish_output_gso(struct sk_buff *skb)
return ret;
}
static int ip_finish_output(struct sk_buff *skb)
static int ip_finish_output(struct sock *sk, struct sk_buff *skb)
{
#if defined(CONFIG_NETFILTER) && defined(CONFIG_XFRM)
/* Policy lookup after SNAT yielded a new policy */
if (skb_dst(skb)->xfrm) {
IPCB(skb)->flags |= IPSKB_REROUTED;
return dst_output(skb);
return dst_output_sk(sk, skb);
}
#endif
if (skb_is_gso(skb))
return ip_finish_output_gso(skb);
return ip_finish_output_gso(sk, skb);
if (skb->len > ip_skb_dst_mtu(skb))
return ip_fragment(skb, ip_finish_output2);
return ip_fragment(sk, skb, ip_finish_output2);
return ip_finish_output2(skb);
return ip_finish_output2(sk, skb);
}
int ip_mc_output(struct sock *sk, struct sk_buff *skb)
@ -307,7 +312,7 @@ 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,
newskb, NULL, newskb->dev,
sk, newskb, NULL, newskb->dev,
dev_loopback_xmit);
}
@ -322,11 +327,11 @@ 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, newskb,
NF_HOOK(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, newskb,
NULL, newskb->dev, dev_loopback_xmit);
}
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, skb, NULL,
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, skb, NULL,
skb->dev, ip_finish_output,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}
@ -340,7 +345,8 @@ 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, skb, NULL, dev,
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, skb,
NULL, dev,
ip_finish_output,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}
@ -480,7 +486,8 @@ static void ip_copy_metadata(struct sk_buff *to, struct sk_buff *from)
* single device frame, and queue such a frame for sending.
*/
int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
int ip_fragment(struct sock *sk, struct sk_buff *skb,
int (*output)(struct sock *, struct sk_buff *))
{
struct iphdr *iph;
int ptr;
@ -593,7 +600,7 @@ int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
ip_send_check(iph);
}
err = output(skb);
err = output(sk, skb);
if (!err)
IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGCREATES);
@ -730,7 +737,7 @@ slow_path:
ip_send_check(iph);
err = output(skb2);
err = output(sk, skb2);
if (err)
goto fail;

7
net/ipv4/ipmr.c
View File

@ -1679,7 +1679,7 @@ static void ip_encap(struct net *net, struct sk_buff *skb,
nf_reset(skb);
}
static inline int ipmr_forward_finish(struct sk_buff *skb)
static inline int ipmr_forward_finish(struct sock *sk, struct sk_buff *skb)
{
struct ip_options *opt = &(IPCB(skb)->opt);
@ -1689,7 +1689,7 @@ static inline int ipmr_forward_finish(struct sk_buff *skb)
if (unlikely(opt->optlen))
ip_forward_options(skb);
return dst_output(skb);
return dst_output_sk(sk, skb);
}
/*
@ -1788,7 +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, skb, skb->dev, dev,
NF_HOOK(NFPROTO_IPV4, NF_INET_FORWARD, NULL, skb,
skb->dev, dev,
ipmr_forward_finish);
return;

4
net/ipv4/raw.c
View File

@ -412,8 +412,8 @@ 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, skb, NULL,
rt->dst.dev, dst_output);
err = NF_HOOK(NFPROTO_IPV4, NF_INET_LOCAL_OUT, sk, skb,
NULL, rt->dst.dev, dst_output_sk);
if (err > 0)
err = net_xmit_errno(err);
if (err)

5
net/ipv4/xfrm4_input.c
View File

@ -22,7 +22,7 @@ int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb)
return xfrm4_extract_header(skb);
}
static inline int xfrm4_rcv_encap_finish(struct sk_buff *skb)
static inline int xfrm4_rcv_encap_finish(struct sock *sk, struct sk_buff *skb)
{
if (!skb_dst(skb)) {
const struct iphdr *iph = ip_hdr(skb);
@ -52,7 +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, skb, skb->dev, NULL,
NF_HOOK(NFPROTO_IPV4, NF_INET_PRE_ROUTING, NULL, skb,
skb->dev, NULL,
xfrm4_rcv_encap_finish);
return 0;
}

12
net/ipv4/xfrm4_output.c
View File

@ -69,7 +69,7 @@ int xfrm4_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
}
EXPORT_SYMBOL(xfrm4_prepare_output);
int xfrm4_output_finish(struct sk_buff *skb)
int xfrm4_output_finish(struct sock *sk, struct sk_buff *skb)
{
memset(IPCB(skb), 0, sizeof(*IPCB(skb)));
@ -77,26 +77,26 @@ int xfrm4_output_finish(struct sk_buff *skb)
IPCB(skb)->flags |= IPSKB_XFRM_TRANSFORMED;
#endif
return xfrm_output(skb);
return xfrm_output(sk, skb);
}
static int __xfrm4_output(struct sk_buff *skb)
static int __xfrm4_output(struct sock *sk, struct sk_buff *skb)
{
struct xfrm_state *x = skb_dst(skb)->xfrm;
#ifdef CONFIG_NETFILTER
if (!x) {
IPCB(skb)->flags |= IPSKB_REROUTED;
return dst_output(skb);
return dst_output_sk(sk, skb);
}
#endif
return x->outer_mode->afinfo->output_finish(skb);
return x->outer_mode->afinfo->output_finish(sk, skb);
}
int xfrm4_output(struct sock *sk, struct sk_buff *skb)
{
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, skb,
return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, sk, skb,
NULL, skb_dst(skb)->dev, __xfrm4_output,
!(IPCB(skb)->flags & IPSKB_REROUTED));
}

11
net/ipv6/ip6_input.c
View File

@ -46,8 +46,7 @@
#include <net/xfrm.h>
#include <net/inet_ecn.h>
int ip6_rcv_finish(struct sk_buff *skb)
int ip6_rcv_finish(struct sock *sk, struct sk_buff *skb)
{
if (sysctl_ip_early_demux && !skb_dst(skb) && skb->sk == NULL) {
const struct inet6_protocol *ipprot;
@ -183,7 +182,8 @@ 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, skb, dev, NULL,
return NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, NULL, skb,
dev, NULL,
ip6_rcv_finish);
err:
IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_INHDRERRORS);
@ -198,7 +198,7 @@ drop:
*/
static int ip6_input_finish(struct sk_buff *skb)
static int ip6_input_finish(struct sock *sk, struct sk_buff *skb)
{
struct net *net = dev_net(skb_dst(skb)->dev);
const struct inet6_protocol *ipprot;
@ -277,7 +277,8 @@ discard:
int ip6_input(struct sk_buff *skb)
{
return NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_IN, skb, skb->dev, NULL,
return NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_IN, NULL, skb,
skb->dev, NULL,
ip6_input_finish);
}

33
net/ipv6/ip6_output.c
View File

@ -56,7 +56,7 @@
#include <net/checksum.h>
#include <linux/mroute6.h>
static int ip6_finish_output2(struct sk_buff *skb)
static int ip6_finish_output2(struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct net_device *dev = dst->dev;
@ -70,7 +70,7 @@ static int ip6_finish_output2(struct sk_buff *skb)
if (ipv6_addr_is_multicast(&ipv6_hdr(skb)->daddr)) {
struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
if (!(dev->flags & IFF_LOOPBACK) && sk_mc_loop(skb->sk) &&
if (!(dev->flags & IFF_LOOPBACK) && sk_mc_loop(sk) &&
((mroute6_socket(dev_net(dev), skb) &&
!(IP6CB(skb)->flags & IP6SKB_FORWARDED)) ||
ipv6_chk_mcast_addr(dev, &ipv6_hdr(skb)->daddr,
@ -82,7 +82,7 @@ static int ip6_finish_output2(struct sk_buff *skb)
*/
if (newskb)
NF_HOOK(NFPROTO_IPV6, NF_INET_POST_ROUTING,
newskb, NULL, newskb->dev,
sk, newskb, NULL, newskb->dev,
dev_loopback_xmit);
if (ipv6_hdr(skb)->hop_limit == 0) {
@ -122,14 +122,14 @@ static int ip6_finish_output2(struct sk_buff *skb)
return -EINVAL;
}
static int ip6_finish_output(struct sk_buff *skb)
static int ip6_finish_output(struct sock *sk, struct sk_buff *skb)
{
if ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) ||
dst_allfrag(skb_dst(skb)) ||
(IP6CB(skb)->frag_max_size && skb->len > IP6CB(skb)->frag_max_size))
return ip6_fragment(skb, ip6_finish_output2);
return ip6_fragment(sk, skb, ip6_finish_output2);
else
return ip6_finish_output2(skb);
return ip6_finish_output2(sk, skb);
}
int ip6_output(struct sock *sk, struct sk_buff *skb)
@ -143,7 +143,8 @@ int ip6_output(struct sock *sk, struct sk_buff *skb)
return 0;
}
return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING, skb, NULL, dev,
return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING, sk, skb,
NULL, dev,
ip6_finish_output,
!(IP6CB(skb)->flags & IP6SKB_REROUTED));
}
@ -223,8 +224,8 @@ 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, skb, NULL,
dst->dev, dst_output);
return NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
NULL, dst->dev, dst_output_sk);
}
skb->dev = dst->dev;
@ -316,10 +317,10 @@ static int ip6_forward_proxy_check(struct sk_buff *skb)
return 0;
}
static inline int ip6_forward_finish(struct sk_buff *skb)
static inline int ip6_forward_finish(struct sock *sk, struct sk_buff *skb)
{
skb_sender_cpu_clear(skb);
return dst_output(skb);
return dst_output_sk(sk, skb);
}
static unsigned int ip6_dst_mtu_forward(const struct dst_entry *dst)
@ -511,7 +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, skb, skb->dev, dst->dev,
return NF_HOOK(NFPROTO_IPV6, NF_INET_FORWARD, NULL, skb,
skb->dev, dst->dev,
ip6_forward_finish);
error:
@ -538,7 +540,8 @@ static void ip6_copy_metadata(struct sk_buff *to, struct sk_buff *from)
skb_copy_secmark(to, from);
}
int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
int ip6_fragment(struct sock *sk, struct sk_buff *skb,
int (*output)(struct sock *, struct sk_buff *))
{
struct sk_buff *frag;
struct rt6_info *rt = (struct rt6_info *)skb_dst(skb);
@ -667,7 +670,7 @@ int ip6_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *))
ip6_copy_metadata(frag, skb);
}
err = output(skb);
err = output(sk, skb);
if (!err)
IP6_INC_STATS(net, ip6_dst_idev(&rt->dst),
IPSTATS_MIB_FRAGCREATES);
@ -800,7 +803,7 @@ slow_path:
/*
* Put this fragment into the sending queue.
*/
err = output(frag);
err = output(sk, frag);
if (err)
goto fail;

7
net/ipv6/ip6mr.c
View File

@ -1986,13 +1986,13 @@ int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg)
}
#endif
static inline int ip6mr_forward2_finish(struct sk_buff *skb)
static inline int ip6mr_forward2_finish(struct sock *sk, struct sk_buff *skb)
{
IP6_INC_STATS_BH(dev_net(skb_dst(skb)->dev), ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_OUTFORWDATAGRAMS);
IP6_ADD_STATS_BH(dev_net(skb_dst(skb)->dev), ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_OUTOCTETS, skb->len);
return dst_output(skb);
return dst_output_sk(sk, skb);
}
/*
@ -2064,7 +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, skb, skb->dev, dev,
return NF_HOOK(NFPROTO_IPV6, NF_INET_FORWARD, NULL, skb,
skb->dev, dev,
ip6mr_forward2_finish);
out_free:

9
net/ipv6/mcast.c
View File

@ -1644,8 +1644,9 @@ static void mld_sendpack(struct sk_buff *skb)
payload_len = skb->len;
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL, skb->dev,
dst_output);
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT,
net->ipv6.igmp_sk, skb, NULL, skb->dev,
dst_output_sk);
out:
if (!err) {
ICMP6MSGOUT_INC_STATS(net, idev, ICMPV6_MLD2_REPORT);
@ -2007,8 +2008,8 @@ 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, skb, NULL, skb->dev,
dst_output);
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
NULL, skb->dev, dst_output_sk);
out:
if (!err) {
ICMP6MSGOUT_INC_STATS(net, idev, type);

5
net/ipv6/ndisc.c
View File

@ -463,8 +463,9 @@ 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, skb, NULL, dst->dev,
dst_output);
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
NULL, dst->dev,
dst_output_sk);
if (!err) {
ICMP6MSGOUT_INC_STATS(net, idev, type);
ICMP6_INC_STATS(net, idev, ICMP6_MIB_OUTMSGS);

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

@ -75,7 +75,7 @@ static unsigned int ipv6_defrag(const struct nf_hook_ops *ops,
nf_ct_frag6_consume_orig(reasm);
NF_HOOK_THRESH(NFPROTO_IPV6, ops->hooknum, reasm,
NF_HOOK_THRESH(NFPROTO_IPV6, ops->hooknum, state->sk, reasm,
state->in, state->out,
state->okfn, NF_IP6_PRI_CONNTRACK_DEFRAG + 1);

4
net/ipv6/output_core.c
View File

@ -146,8 +146,8 @@ int __ip6_local_out(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, skb, NULL,
skb_dst(skb)->dev, dst_output);
return nf_hook(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb->sk, skb,
NULL, skb_dst(skb)->dev, dst_output_sk);
}
EXPORT_SYMBOL_GPL(__ip6_local_out);

4
net/ipv6/raw.c
View File

@ -652,8 +652,8 @@ static int rawv6_send_hdrinc(struct sock *sk, struct msghdr *msg, int length,
goto error_fault;
IP6_UPD_PO_STATS(sock_net(sk), rt->rt6i_idev, IPSTATS_MIB_OUT, skb->len);
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, skb, NULL,
rt->dst.dev, dst_output);
err = NF_HOOK(NFPROTO_IPV6, NF_INET_LOCAL_OUT, sk, skb,
NULL, rt->dst.dev, dst_output_sk);
if (err > 0)
err = net_xmit_errno(err);
if (err)

3
net/ipv6/xfrm6_input.c
View File

@ -42,7 +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, skb, skb->dev, NULL,
NF_HOOK(NFPROTO_IPV6, NF_INET_PRE_ROUTING, NULL, skb,
skb->dev, NULL,
ip6_rcv_finish);
return -1;
}

15
net/ipv6/xfrm6_output.c
View File

@ -120,7 +120,7 @@ int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb)
}
EXPORT_SYMBOL(xfrm6_prepare_output);
int xfrm6_output_finish(struct sk_buff *skb)
int xfrm6_output_finish(struct sock *sk, struct sk_buff *skb)
{
memset(IP6CB(skb), 0, sizeof(*IP6CB(skb)));
@ -128,10 +128,10 @@ int xfrm6_output_finish(struct sk_buff *skb)
IP6CB(skb)->flags |= IP6SKB_XFRM_TRANSFORMED;
#endif
return xfrm_output(skb);
return xfrm_output(sk, skb);
}
static int __xfrm6_output(struct sk_buff *skb)
static int __xfrm6_output(struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct xfrm_state *x = dst->xfrm;
@ -140,7 +140,7 @@ static int __xfrm6_output(struct sk_buff *skb)
#ifdef CONFIG_NETFILTER
if (!x) {
IP6CB(skb)->flags |= IP6SKB_REROUTED;
return dst_output(skb);
return dst_output_sk(sk, skb);
}
#endif
@ -160,14 +160,15 @@ static int __xfrm6_output(struct sk_buff *skb)
if (x->props.mode == XFRM_MODE_TUNNEL &&
((skb->len > mtu && !skb_is_gso(skb)) ||
dst_allfrag(skb_dst(skb)))) {
return ip6_fragment(skb, x->outer_mode->afinfo->output_finish);
return ip6_fragment(sk, skb,
x->outer_mode->afinfo->output_finish);
}
return x->outer_mode->afinfo->output_finish(skb);
return x->outer_mode->afinfo->output_finish(sk, skb);
}
int xfrm6_output(struct sock *sk, struct sk_buff *skb)
{
return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING, skb,
return NF_HOOK_COND(NFPROTO_IPV6, NF_INET_POST_ROUTING, sk, skb,
NULL, skb_dst(skb)->dev, __xfrm6_output,
!(IP6CB(skb)->flags & IP6SKB_REROUTED));
}

8
net/netfilter/ipvs/ip_vs_xmit.c
View File

@ -536,8 +536,8 @@ static inline int ip_vs_nat_send_or_cont(int pf, struct sk_buff *skb,
ip_vs_update_conntrack(skb, cp, 1);
if (!local) {
skb_forward_csum(skb);
NF_HOOK(pf, NF_INET_LOCAL_OUT, skb, NULL, skb_dst(skb)->dev,
dst_output);
NF_HOOK(pf, NF_INET_LOCAL_OUT, NULL, skb,
NULL, skb_dst(skb)->dev, dst_output_sk);
} else
ret = NF_ACCEPT;
return ret;
@ -554,8 +554,8 @@ static inline int ip_vs_send_or_cont(int pf, struct sk_buff *skb,
ip_vs_notrack(skb);
if (!local) {
skb_forward_csum(skb);
NF_HOOK(pf, NF_INET_LOCAL_OUT, skb, NULL, skb_dst(skb)->dev,
dst_output);
NF_HOOK(pf, NF_INET_LOCAL_OUT, NULL, skb,
NULL, skb_dst(skb)->dev, dst_output_sk);
} else
ret = NF_ACCEPT;
return ret;

2
net/netfilter/nf_queue.c
View File

@ -202,7 +202,7 @@ void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict)
case NF_ACCEPT:
case NF_STOP:
local_bh_disable();
entry->state.okfn(skb);
entry->state.okfn(entry->state.sk, skb);
local_bh_enable();
break;
case NF_QUEUE:

16
net/xfrm/xfrm_output.c
View File

@ -19,7 +19,7 @@
#include <net/dst.h>
#include <net/xfrm.h>
static int xfrm_output2(struct sk_buff *skb);
static int xfrm_output2(struct sock *sk, struct sk_buff *skb);
static int xfrm_skb_check_space(struct sk_buff *skb)
{
@ -130,7 +130,7 @@ int xfrm_output_resume(struct sk_buff *skb, int err)
return dst_output(skb);
err = nf_hook(skb_dst(skb)->ops->family,
NF_INET_POST_ROUTING, skb,
NF_INET_POST_ROUTING, skb->sk, skb,
NULL, skb_dst(skb)->dev, xfrm_output2);
if (unlikely(err != 1))
goto out;
@ -144,12 +144,12 @@ out:
}
EXPORT_SYMBOL_GPL(xfrm_output_resume);
static int xfrm_output2(struct sk_buff *skb)
static int xfrm_output2(struct sock *sk, struct sk_buff *skb)
{
return xfrm_output_resume(skb, 1);
}
static int xfrm_output_gso(struct sk_buff *skb)
static int xfrm_output_gso(struct sock *sk, struct sk_buff *skb)
{
struct sk_buff *segs;
@ -165,7 +165,7 @@ static int xfrm_output_gso(struct sk_buff *skb)
int err;
segs->next = NULL;
err = xfrm_output2(segs);
err = xfrm_output2(sk, segs);
if (unlikely(err)) {
kfree_skb_list(nskb);
@ -178,13 +178,13 @@ static int xfrm_output_gso(struct sk_buff *skb)
return 0;
}
int xfrm_output(struct sk_buff *skb)
int xfrm_output(struct sock *sk, struct sk_buff *skb)
{
struct net *net = dev_net(skb_dst(skb)->dev);
int err;
if (skb_is_gso(skb))
return xfrm_output_gso(skb);
return xfrm_output_gso(sk, skb);
if (skb->ip_summed == CHECKSUM_PARTIAL) {
err = skb_checksum_help(skb);
@ -195,7 +195,7 @@ int xfrm_output(struct sk_buff *skb)
}
}
return xfrm_output2(skb);
return xfrm_output2(sk, skb);
}
EXPORT_SYMBOL_GPL(xfrm_output);