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net: ipv4: Remove l3mdev_get_saddr 

No longer needed

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2016-09-10 12:09:58 -07:00 committed by David S. Miller
parent e0d56fdd73
commit d66f6c0a8f
6 changed files with 0 additions and 103 deletions
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38
drivers/net/vrf.c
View File

@ -863,43 +863,6 @@ static struct rtable *vrf_get_rtable(const struct net_device *dev,
return rth;
}
/* called under rcu_read_lock */
static int vrf_get_saddr(struct net_device *dev, struct flowi4 *fl4)
{
struct fib_result res = { .tclassid = 0 };
struct net *net = dev_net(dev);
u32 orig_tos = fl4->flowi4_tos;
u8 flags = fl4->flowi4_flags;
u8 scope = fl4->flowi4_scope;
u8 tos = RT_FL_TOS(fl4);
int rc;
if (unlikely(!fl4->daddr))
return 0;
fl4->flowi4_flags |= FLOWI_FLAG_SKIP_NH_OIF;
fl4->flowi4_iif = LOOPBACK_IFINDEX;
/* make sure oif is set to VRF device for lookup */
fl4->flowi4_oif = dev->ifindex;
fl4->flowi4_tos = tos & IPTOS_RT_MASK;
fl4->flowi4_scope = ((tos & RTO_ONLINK) ?
RT_SCOPE_LINK : RT_SCOPE_UNIVERSE);
rc = fib_lookup(net, fl4, &res, 0);
if (!rc) {
if (res.type == RTN_LOCAL)
fl4->saddr = res.fi->fib_prefsrc ? : fl4->daddr;
else
fib_select_path(net, &res, fl4, -1);
}
fl4->flowi4_flags = flags;
fl4->flowi4_tos = orig_tos;
fl4->flowi4_scope = scope;
return rc;
}
static int vrf_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
{
return 0;
@ -1166,7 +1129,6 @@ static int vrf_get_saddr6(struct net_device *dev, const struct sock *sk,
static const struct l3mdev_ops vrf_l3mdev_ops = {
.l3mdev_fib_table = vrf_fib_table,
.l3mdev_get_rtable = vrf_get_rtable,
.l3mdev_get_saddr = vrf_get_saddr,
.l3mdev_l3_rcv = vrf_l3_rcv,
.l3mdev_l3_out = vrf_l3_out,
#if IS_ENABLED(CONFIG_IPV6)

12
include/net/l3mdev.h
View File

@ -25,8 +25,6 @@
*
* @l3mdev_get_rtable: Get cached IPv4 rtable (dst_entry) for device
*
* @l3mdev_get_saddr: Get source address for a flow
*
* @l3mdev_link_scope_lookup: IPv6 lookup for linklocal and mcast destinations
*/
@ -41,8 +39,6 @@ struct l3mdev_ops {
/* IPv4 ops */
struct rtable * (*l3mdev_get_rtable)(const struct net_device *dev,
const struct flowi4 *fl4);
int (*l3mdev_get_saddr)(struct net_device *dev,
struct flowi4 *fl4);
/* IPv6 ops */
struct dst_entry * (*l3mdev_link_scope_lookup)(const struct net_device *dev,
@ -175,8 +171,6 @@ static inline bool netif_index_is_l3_master(struct net *net, int ifindex)
return rc;
}
int l3mdev_get_saddr(struct net *net, int ifindex, struct flowi4 *fl4);
struct dst_entry *l3mdev_link_scope_lookup(struct net *net, struct flowi6 *fl6);
int l3mdev_get_saddr6(struct net *net, const struct sock *sk,
struct flowi6 *fl6);
@ -292,12 +286,6 @@ static inline bool netif_index_is_l3_master(struct net *net, int ifindex)
return false;
}
static inline int l3mdev_get_saddr(struct net *net, int ifindex,
struct flowi4 *fl4)
{
return 0;
}
static inline
struct dst_entry *l3mdev_link_scope_lookup(struct net *net, struct flowi6 *fl6)
{

10
include/net/route.h
View File

@ -29,7 +29,6 @@
#include <net/flow.h>
#include <net/inet_sock.h>
#include <net/ip_fib.h>
#include <net/l3mdev.h>
#include <linux/in_route.h>
#include <linux/rtnetlink.h>
#include <linux/rcupdate.h>
@ -285,15 +284,6 @@ static inline struct rtable *ip_route_connect(struct flowi4 *fl4,
ip_route_connect_init(fl4, dst, src, tos, oif, protocol,
sport, dport, sk);
if (!src && oif) {
int rc;
rc = l3mdev_get_saddr(net, oif, fl4);
if (rc < 0)
return ERR_PTR(rc);
src = fl4->saddr;
}
if (!dst || !src) {
rt = __ip_route_output_key(net, fl4);
if (IS_ERR(rt))

6
net/ipv4/raw.c
View File

@ -606,12 +606,6 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
(inet->hdrincl ? FLOWI_FLAG_KNOWN_NH : 0),
daddr, saddr, 0, 0);
if (!saddr && ipc.oif) {
err = l3mdev_get_saddr(net, ipc.oif, &fl4);
if (err < 0)
goto done;
}
if (!inet->hdrincl) {
rfv.msg = msg;
rfv.hlen = 0;

6
net/ipv4/udp.c
View File

@ -1021,12 +1021,6 @@ int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
flow_flags,
faddr, saddr, dport, inet->inet_sport);
if (!saddr && ipc.oif) {
err = l3mdev_get_saddr(net, ipc.oif, fl4);
if (err < 0)
goto out;
}
security_sk_classify_flow(sk, flowi4_to_flowi(fl4));
rt = ip_route_output_flow(net, fl4, sk);
if (IS_ERR(rt)) {

31
net/l3mdev/l3mdev.c
View File

@ -130,37 +130,6 @@ struct dst_entry *l3mdev_link_scope_lookup(struct net *net,
}
EXPORT_SYMBOL_GPL(l3mdev_link_scope_lookup);
/**
* l3mdev_get_saddr - get source address for a flow based on an interface
* enslaved to an L3 master device
* @net: network namespace for device index lookup
* @ifindex: Interface index
* @fl4: IPv4 flow struct
*/
int l3mdev_get_saddr(struct net *net, int ifindex, struct flowi4 *fl4)
{
struct net_device *dev;
int rc = 0;
if (ifindex) {
rcu_read_lock();
dev = dev_get_by_index_rcu(net, ifindex);
if (dev && netif_is_l3_slave(dev))
dev = netdev_master_upper_dev_get_rcu(dev);
if (dev && netif_is_l3_master(dev) &&
dev->l3mdev_ops->l3mdev_get_saddr)
rc = dev->l3mdev_ops->l3mdev_get_saddr(dev, fl4);
rcu_read_unlock();
}
return rc;
}
EXPORT_SYMBOL_GPL(l3mdev_get_saddr);
int l3mdev_get_saddr6(struct net *net, const struct sock *sk,
struct flowi6 *fl6)
{