net: evaluate net.ipvX.conf.all.disable_policy and disable_xfrm

The disable_policy and disable_xfrm are a per-interface sysctl to
disable IPsec policy or encryption on an interface. However, while a
"all" variant is exposed, it was a noop since it was never evaluated.
We use the usual "or" logic for this kind of sysctls.

Signed-off-by: Vincent Bernat <vincent@bernat.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index dc2a399..a3b60c4 100644 (file)
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1741,7 +1741,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
                flags |= RTCF_LOCAL;
 
        rth = rt_dst_alloc(dev_net(dev)->loopback_dev, flags, RTN_MULTICAST,
-                          IN_DEV_CONF_GET(in_dev, NOPOLICY), false);
+                          IN_DEV_ORCONF(in_dev, NOPOLICY), false);
        if (!rth)
                return -ENOBUFS;
 
@@ -1857,8 +1857,8 @@ static int __mkroute_input(struct sk_buff *skb,
        }
 
        rth = rt_dst_alloc(out_dev->dev, 0, res->type,
-                          IN_DEV_CONF_GET(in_dev, NOPOLICY),
-                          IN_DEV_CONF_GET(out_dev, NOXFRM));
+                          IN_DEV_ORCONF(in_dev, NOPOLICY),
+                          IN_DEV_ORCONF(out_dev, NOXFRM));
        if (!rth) {
                err = -ENOBUFS;
                goto cleanup;
@@ -2227,7 +2227,7 @@ local_input:
 
        rth = rt_dst_alloc(l3mdev_master_dev_rcu(dev) ? : net->loopback_dev,
                           flags | RTCF_LOCAL, res->type,
-                          IN_DEV_CONF_GET(in_dev, NOPOLICY), false);
+                          IN_DEV_ORCONF(in_dev, NOPOLICY), false);
        if (!rth)
                goto e_nobufs;
 
@@ -2450,8 +2450,8 @@ static struct rtable *__mkroute_output(const struct fib_result *res,
 
 add:
        rth = rt_dst_alloc(dev_out, flags, type,
-                          IN_DEV_CONF_GET(in_dev, NOPOLICY),
-                          IN_DEV_CONF_GET(in_dev, NOXFRM));
+                          IN_DEV_ORCONF(in_dev, NOPOLICY),
+                          IN_DEV_ORCONF(in_dev, NOXFRM));
        if (!rth)
                return ERR_PTR(-ENOBUFS);