[NETNS]: Add a namespace mark to fib_info.

This is required to make fib_info lookups namespace aware. In the
other case initial namespace devices are marked as dead in the local
routing table during other namespace stop.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index 1b2f008..cb0df37 100644 (file)
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -69,6 +69,7 @@ struct fib_nh {
 struct fib_info {
        struct hlist_node       fib_hash;
        struct hlist_node       fib_lhash;
+       struct net              *fib_net;
        int                     fib_treeref;
        atomic_t                fib_clntref;
        int                     fib_dead;

diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 5beff2e..97cc494 100644 (file)
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -687,6 +687,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
        struct fib_info *fi = NULL;
        struct fib_info *ofi;
        int nhs = 1;
+       struct net *net = cfg->fc_nlinfo.nl_net;
 
        /* Fast check to catch the most weird cases */
        if (fib_props[cfg->fc_type].scope > cfg->fc_scope)
@@ -727,6 +728,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
                goto failure;
        fib_info_cnt++;
 
+       fi->fib_net = net;
        fi->fib_protocol = cfg->fc_protocol;
        fi->fib_flags = cfg->fc_flags;
        fi->fib_priority = cfg->fc_priority;
@@ -798,8 +800,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
                if (nhs != 1 || nh->nh_gw)
                        goto err_inval;
                nh->nh_scope = RT_SCOPE_NOWHERE;
-               nh->nh_dev = dev_get_by_index(cfg->fc_nlinfo.nl_net,
-                                             fi->fib_nh->nh_oif);
+               nh->nh_dev = dev_get_by_index(net, fi->fib_nh->nh_oif);
                err = -ENODEV;
                if (nh->nh_dev == NULL)
                        goto failure;
@@ -813,8 +814,7 @@ struct fib_info *fib_create_info(struct fib_config *cfg)
        if (fi->fib_prefsrc) {
                if (cfg->fc_type != RTN_LOCAL || !cfg->fc_dst ||
                    fi->fib_prefsrc != cfg->fc_dst)
-                       if (inet_addr_type(cfg->fc_nlinfo.nl_net,
-                                          fi->fib_prefsrc) != RTN_LOCAL)
+                       if (inet_addr_type(net, fi->fib_prefsrc) != RTN_LOCAL)
                                goto err_inval;
        }