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dst: Pass net into dst->output

Browse Source 
The network namespace is already passed into dst_output pass it into
dst->output lwt->output and friends.

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 2015-10-07 16:48:47 -05:00 committed by David S. Miller
parent 33224b16ff
commit ede2059dba
18 changed files with 45 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/vrf.c
View File

@ -312,10 +312,9 @@ err:
return ret;
}
static int vrf_output(struct sock *sk, struct sk_buff *skb)
static int vrf_output(struct net *net, 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(net, IPSTATS_MIB_OUT, skb->len);

8
include/net/dst.h
View File

@ -45,7 +45,7 @@ struct dst_entry {
void *__pad1;
#endif
int (*input)(struct sk_buff *);
int (*output)(struct sock *sk, struct sk_buff *skb);
int (*output)(struct net *net, struct sock *sk, struct sk_buff *skb);
unsigned short flags;
#define DST_HOST 0x0001
@ -365,10 +365,10 @@ static inline void skb_tunnel_rx(struct sk_buff *skb, struct net_device *dev,
__skb_tunnel_rx(skb, dev, net);
}
int dst_discard_sk(struct sock *sk, struct sk_buff *skb);
int dst_discard_out(struct net *net, struct sock *sk, struct sk_buff *skb);
static inline int dst_discard(struct sk_buff *skb)
{
return dst_discard_sk(skb->sk, skb);
return dst_discard_out(&init_net, skb->sk, skb);
}
void *dst_alloc(struct dst_ops *ops, struct net_device *dev, int initial_ref,
int initial_obsolete, unsigned short flags);
@ -456,7 +456,7 @@ static inline void dst_set_expires(struct dst_entry *dst, int timeout)
/* Output packet to network from transport. */
static inline int dst_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
return skb_dst(skb)->output(sk, skb);
return skb_dst(skb)->output(net, sk, skb);
}
/* Input packet from network to transport. */

4
include/net/ip.h
View File

@ -107,8 +107,8 @@ int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
struct net_device *orig_dev);
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_output(struct net *net, struct sock *sk, struct sk_buff *skb);
int ip_mc_output(struct net *net, struct sock *sk, struct sk_buff *skb);
int ip_do_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
int (*output)(struct net *, struct sock *, struct sk_buff *));
void ip_send_check(struct iphdr *ip);

2
include/net/ipv6.h
View File

@ -860,7 +860,7 @@ struct dst_entry *ip6_blackhole_route(struct net *net,
* skb processing functions
*/
int ip6_output(struct sock *sk, struct sk_buff *skb);
int ip6_output(struct net *net, struct sock *sk, struct sk_buff *skb);
int ip6_forward(struct sk_buff *skb);
int ip6_input(struct sk_buff *skb);
int ip6_mc_input(struct sk_buff *skb);

8
include/net/lwtunnel.h
View File

@ -18,7 +18,7 @@ struct lwtunnel_state {
__u16 type;
__u16 flags;
atomic_t refcnt;
int (*orig_output)(struct sock *sk, struct sk_buff *skb);
int (*orig_output)(struct net *net, struct sock *sk, struct sk_buff *skb);
int (*orig_input)(struct sk_buff *);
int len;
__u8 data[0];
@ -28,7 +28,7 @@ struct lwtunnel_encap_ops {
int (*build_state)(struct net_device *dev, struct nlattr *encap,
unsigned int family, const void *cfg,
struct lwtunnel_state **ts);
int (*output)(struct sock *sk, struct sk_buff *skb);
int (*output)(struct net *net, struct sock *sk, struct sk_buff *skb);
int (*input)(struct sk_buff *skb);
int (*fill_encap)(struct sk_buff *skb,
struct lwtunnel_state *lwtstate);
@ -88,7 +88,7 @@ int lwtunnel_fill_encap(struct sk_buff *skb,
int lwtunnel_get_encap_size(struct lwtunnel_state *lwtstate);
struct lwtunnel_state *lwtunnel_state_alloc(int hdr_len);
int lwtunnel_cmp_encap(struct lwtunnel_state *a, struct lwtunnel_state *b);
int lwtunnel_output(struct sock *sk, struct sk_buff *skb);
int lwtunnel_output(struct net *net, struct sock *sk, struct sk_buff *skb);
int lwtunnel_input(struct sk_buff *skb);
#else
@ -160,7 +160,7 @@ static inline int lwtunnel_cmp_encap(struct lwtunnel_state *a,
return 0;
}
static inline int lwtunnel_output(struct sock *sk, struct sk_buff *skb)
static inline int lwtunnel_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
return -EOPNOTSUPP;
}

6
include/net/xfrm.h
View File

@ -333,7 +333,7 @@ struct xfrm_state_afinfo {
const xfrm_address_t *saddr);
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)(struct net *net, struct sock *sk, 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);
@ -1527,7 +1527,7 @@ 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(struct net *net, struct sock *sk, 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);
@ -1552,7 +1552,7 @@ __be32 xfrm6_tunnel_alloc_spi(struct net *net, xfrm_address_t *saddr);
__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(struct net *net, struct sock *sk, 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);

14
net/core/dst.c
View File

@ -144,12 +144,12 @@ loop:
mutex_unlock(&dst_gc_mutex);
}
int dst_discard_sk(struct sock *sk, struct sk_buff *skb)
int dst_discard_out(struct net *net, struct sock *sk, struct sk_buff *skb)
{
kfree_skb(skb);
return 0;
}
EXPORT_SYMBOL(dst_discard_sk);
EXPORT_SYMBOL(dst_discard_out);
const u32 dst_default_metrics[RTAX_MAX + 1] = {
/* This initializer is needed to force linker to place this variable
@ -177,7 +177,7 @@ void dst_init(struct dst_entry *dst, struct dst_ops *ops,
dst->xfrm = NULL;
#endif
dst->input = dst_discard;
dst->output = dst_discard_sk;
dst->output = dst_discard_out;
dst->error = 0;
dst->obsolete = initial_obsolete;
dst->header_len = 0;
@ -224,7 +224,7 @@ static void ___dst_free(struct dst_entry *dst)
*/
if (dst->dev == NULL || !(dst->dev->flags&IFF_UP)) {
dst->input = dst_discard;
dst->output = dst_discard_sk;
dst->output = dst_discard_out;
}
dst->obsolete = DST_OBSOLETE_DEAD;
}
@ -352,7 +352,7 @@ static struct dst_ops md_dst_ops = {
.family = AF_UNSPEC,
};
static int dst_md_discard_sk(struct sock *sk, struct sk_buff *skb)
static int dst_md_discard_out(struct net *net, struct sock *sk, struct sk_buff *skb)
{
WARN_ONCE(1, "Attempting to call output on metadata dst\n");
kfree_skb(skb);
@ -375,7 +375,7 @@ static void __metadata_dst_init(struct metadata_dst *md_dst, u8 optslen)
DST_METADATA | DST_NOCACHE | DST_NOCOUNT);
dst->input = dst_md_discard;
dst->output = dst_md_discard_sk;
dst->output = dst_md_discard_out;
memset(dst + 1, 0, sizeof(*md_dst) + optslen - sizeof(*dst));
}
@ -430,7 +430,7 @@ static void dst_ifdown(struct dst_entry *dst, struct net_device *dev,
if (!unregister) {
dst->input = dst_discard;
dst->output = dst_discard_sk;
dst->output = dst_discard_out;
} else {
dst->dev = dev_net(dst->dev)->loopback_dev;
dev_hold(dst->dev);

4
net/core/lwtunnel.c
View File

@ -180,7 +180,7 @@ int lwtunnel_cmp_encap(struct lwtunnel_state *a, struct lwtunnel_state *b)
}
EXPORT_SYMBOL(lwtunnel_cmp_encap);
int lwtunnel_output(struct sock *sk, struct sk_buff *skb)
int lwtunnel_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
const struct lwtunnel_encap_ops *ops;
@ -199,7 +199,7 @@ int lwtunnel_output(struct sock *sk, struct sk_buff *skb)
rcu_read_lock();
ops = rcu_dereference(lwtun_encaps[lwtstate->type]);
if (likely(ops && ops->output))
ret = ops->output(sk, skb);
ret = ops->output(net, sk, skb);
rcu_read_unlock();
if (ret == -EOPNOTSUPP)

6
net/decnet/dn_route.c
View File

@ -744,7 +744,7 @@ out:
return NET_RX_DROP;
}
static int dn_output(struct sock *sk, struct sk_buff *skb)
static int dn_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
struct dn_route *rt = (struct dn_route *)dst;
@ -832,7 +832,7 @@ drop:
* Used to catch bugs. This should never normally get
* called.
*/
static int dn_rt_bug_sk(struct sock *sk, struct sk_buff *skb)
static int dn_rt_bug_out(struct net *net, struct sock *sk, struct sk_buff *skb)
{
struct dn_skb_cb *cb = DN_SKB_CB(skb);
@ -1469,7 +1469,7 @@ make_route:
rt->n = neigh;
rt->dst.lastuse = jiffies;
rt->dst.output = dn_rt_bug_sk;
rt->dst.output = dn_rt_bug_out;
switch (res.type) {
case RTN_UNICAST:
rt->dst.input = dn_forward;

6
net/ipv4/ip_output.c
View File

@ -284,11 +284,10 @@ static int ip_finish_output(struct net *net, struct sock *sk, struct sk_buff *sk
return ip_finish_output2(net, sk, skb);
}
int ip_mc_output(struct sock *sk, struct sk_buff *skb)
int ip_mc_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
struct rtable *rt = skb_rtable(skb);
struct net_device *dev = rt->dst.dev;
struct net *net = dev_net(dev);
/*
* If the indicated interface is up and running, send the packet.
@ -347,10 +346,9 @@ int ip_mc_output(struct sock *sk, struct sk_buff *skb)
!(IPCB(skb)->flags & IPSKB_REROUTED));
}
int ip_output(struct sock *sk, struct sk_buff *skb)
int ip_output(struct net *net, 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(net, IPSTATS_MIB_OUT, skb->len);

4
net/ipv4/route.c
View File

@ -1152,7 +1152,7 @@ static void ipv4_link_failure(struct sk_buff *skb)
dst_set_expires(&rt->dst, 0);
}
static int ip_rt_bug(struct sock *sk, struct sk_buff *skb)
static int ip_rt_bug(struct net *net, struct sock *sk, struct sk_buff *skb)
{
pr_debug("%s: %pI4 -> %pI4, %s\n",
__func__, &ip_hdr(skb)->saddr, &ip_hdr(skb)->daddr,
@ -2303,7 +2303,7 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or
new->__use = 1;
new->input = dst_discard;
new->output = dst_discard_sk;
new->output = dst_discard_out;
new->dev = ort->dst.dev;
if (new->dev)

4
net/ipv4/xfrm4_output.c
View File

@ -94,10 +94,8 @@ static int __xfrm4_output(struct net *net, struct sock *sk, struct sk_buff *skb)
return x->outer_mode->afinfo->output_finish(sk, skb);
}
int xfrm4_output(struct sock *sk, struct sk_buff *skb)
int xfrm4_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
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,

4
net/ipv6/ila.c
View File

@ -91,7 +91,7 @@ static void update_ipv6_locator(struct sk_buff *skb, struct ila_params *p)
*(__be64 *)&ip6h->daddr = p->locator;
}
static int ila_output(struct sock *sk, struct sk_buff *skb)
static int ila_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
struct dst_entry *dst = skb_dst(skb);
@ -100,7 +100,7 @@ static int ila_output(struct sock *sk, struct sk_buff *skb)
update_ipv6_locator(skb, ila_params_lwtunnel(dst->lwtstate));
return dst->lwtstate->orig_output(sk, skb);
return dst->lwtstate->orig_output(net, sk, skb);
drop:
kfree_skb(skb);

3
net/ipv6/ip6_output.c
View File

@ -130,11 +130,10 @@ static int ip6_finish_output(struct net *net, struct sock *sk, struct sk_buff *s
return ip6_finish_output2(net, sk, skb);
}
int ip6_output(struct sock *sk, struct sk_buff *skb)
int ip6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
struct net_device *dev = skb_dst(skb)->dev;
struct inet6_dev *idev = ip6_dst_idev(skb_dst(skb));
struct net *net = dev_net(dev);
if (unlikely(idev->cnf.disable_ipv6)) {
IP6_INC_STATS(net, idev, IPSTATS_MIB_OUTDISCARDS);

14
net/ipv6/route.c
View File

@ -86,9 +86,9 @@ static void ip6_dst_ifdown(struct dst_entry *,
static int ip6_dst_gc(struct dst_ops *ops);
static int ip6_pkt_discard(struct sk_buff *skb);
static int ip6_pkt_discard_out(struct sock *sk, struct sk_buff *skb);
static int ip6_pkt_discard_out(struct net *net, struct sock *sk, struct sk_buff *skb);
static int ip6_pkt_prohibit(struct sk_buff *skb);
static int ip6_pkt_prohibit_out(struct sock *sk, struct sk_buff *skb);
static int ip6_pkt_prohibit_out(struct net *net, struct sock *sk, struct sk_buff *skb);
static void ip6_link_failure(struct sk_buff *skb);
static void ip6_rt_update_pmtu(struct dst_entry *dst, struct sock *sk,
struct sk_buff *skb, u32 mtu);
@ -308,7 +308,7 @@ static const struct rt6_info ip6_blk_hole_entry_template = {
.obsolete = DST_OBSOLETE_FORCE_CHK,
.error = -EINVAL,
.input = dst_discard,
.output = dst_discard_sk,
.output = dst_discard_out,
},
.rt6i_flags = (RTF_REJECT | RTF_NONEXTHOP),
.rt6i_protocol = RTPROT_KERNEL,
@ -1195,7 +1195,7 @@ struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_ori
new->__use = 1;
new->input = dst_discard;
new->output = dst_discard_sk;
new->output = dst_discard_out;
if (dst_metrics_read_only(&ort->dst))
new->_metrics = ort->dst._metrics;
@ -1853,7 +1853,7 @@ int ip6_route_info_create(struct fib6_config *cfg, struct rt6_info **rt_ret)
switch (cfg->fc_type) {
case RTN_BLACKHOLE:
rt->dst.error = -EINVAL;
rt->dst.output = dst_discard_sk;
rt->dst.output = dst_discard_out;
rt->dst.input = dst_discard;
break;
case RTN_PROHIBIT:
@ -2446,7 +2446,7 @@ static int ip6_pkt_discard(struct sk_buff *skb)
return ip6_pkt_drop(skb, ICMPV6_NOROUTE, IPSTATS_MIB_INNOROUTES);
}
static int ip6_pkt_discard_out(struct sock *sk, struct sk_buff *skb)
static int ip6_pkt_discard_out(struct net *net, struct sock *sk, struct sk_buff *skb)
{
skb->dev = skb_dst(skb)->dev;
return ip6_pkt_drop(skb, ICMPV6_NOROUTE, IPSTATS_MIB_OUTNOROUTES);
@ -2457,7 +2457,7 @@ static int ip6_pkt_prohibit(struct sk_buff *skb)
return ip6_pkt_drop(skb, ICMPV6_ADM_PROHIBITED, IPSTATS_MIB_INNOROUTES);
}
static int ip6_pkt_prohibit_out(struct sock *sk, struct sk_buff *skb)
static int ip6_pkt_prohibit_out(struct net *net, struct sock *sk, struct sk_buff *skb)
{
skb->dev = skb_dst(skb)->dev;
return ip6_pkt_drop(skb, ICMPV6_ADM_PROHIBITED, IPSTATS_MIB_OUTNOROUTES);

4
net/ipv6/xfrm6_output.c
View File

@ -173,10 +173,8 @@ static int __xfrm6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
return x->outer_mode->afinfo->output_finish(sk, skb);
}
int xfrm6_output(struct sock *sk, struct sk_buff *skb)
int xfrm6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
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,

2
net/mpls/mpls_iptunnel.c
View File

@ -37,7 +37,7 @@ static unsigned int mpls_encap_size(struct mpls_iptunnel_encap *en)
return en->labels * sizeof(struct mpls_shim_hdr);
}
int mpls_output(struct sock *sk, struct sk_buff *skb)
int mpls_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
struct mpls_iptunnel_encap *tun_encap_info;
struct mpls_shim_hdr *hdr;

2
net/xfrm/xfrm_policy.c
View File

@ -1957,7 +1957,7 @@ purge_queue:
xfrm_pol_put(pol);
}
static int xdst_queue_output(struct sock *sk, struct sk_buff *skb)
static int xdst_queue_output(struct net *net, struct sock *sk, struct sk_buff *skb)
{
unsigned long sched_next;
struct dst_entry *dst = skb_dst(skb);