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Message-Id: <1473534602-23602-8-git-send-email-dsa@cumulusnetworks.com>
Date: Sat, 10 Sep 2016 12:09:58 -0700
From: David Ahern <dsa@...ulusnetworks.com>
To: netdev@...r.kernel.org
Cc: shm@...ulusnetworks.com, David Ahern <dsa@...ulusnetworks.com>
Subject: [PATCH net-next 07/11] net: ipv4: Remove l3mdev_get_saddr
No longer needed
Signed-off-by: David Ahern <dsa@...ulusnetworks.com>
---
drivers/net/vrf.c | 38 --------------------------------------
include/net/l3mdev.h | 12 ------------
include/net/route.h | 10 ----------
net/ipv4/raw.c | 6 ------
net/ipv4/udp.c | 6 ------
net/l3mdev/l3mdev.c | 31 -------------------------------
6 files changed, 103 deletions(-)
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index f5372edf6edc..9ad2a169485f 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -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)
diff --git a/include/net/l3mdev.h b/include/net/l3mdev.h
index 51aab20a4d0a..1129e1d8cd6e 100644
--- a/include/net/l3mdev.h
+++ b/include/net/l3mdev.h
@@ -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)
{
diff --git a/include/net/route.h b/include/net/route.h
index ad777d79af94..0429d47cad25 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -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))
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 438f50c1a676..90a85c955872 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -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;
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 058c31286ce1..7d96dc2d3d08 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -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)) {
diff --git a/net/l3mdev/l3mdev.c b/net/l3mdev/l3mdev.c
index ac9d928d0a9e..be40df60703c 100644
--- a/net/l3mdev/l3mdev.c
+++ b/net/l3mdev/l3mdev.c
@@ -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)
{
--
2.1.4
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