[NETNS]: Add netns parameter to fib_get_table/fib_new_table.

This patch extends the fib_get_table and the fib_new_table functions
with the network namespace pointer. That will allow to access the
table relatively from the network namespace.

Acked-by: Benjamin Thery <benjamin.thery@bull.net>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 24 insertions, 24 deletions

diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 9ff1e6669ef2..7718823711e3 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -78,14 +78,14 @@ fail:
 }
 #else
 
-struct fib_table *fib_new_table(u32 id)
+struct fib_table *fib_new_table(struct net *net, u32 id)
 {
         struct fib_table *tb;
         unsigned int h;
 
         if (id == 0)
                 id = RT_TABLE_MAIN;
-        tb = fib_get_table(id);
+        tb = fib_get_table(net, id);
         if (tb)
                 return tb;
         tb = fib_hash_init(id);
@@ -96,7 +96,7 @@ struct fib_table *fib_new_table(u32 id)
         return tb;
 }
 
-struct fib_table *fib_get_table(u32 id)
+struct fib_table *fib_get_table(struct net *net, u32 id)
 {
         struct fib_table *tb;
         struct hlist_node *node;
@@ -148,7 +148,7 @@ struct net_device * ip_dev_find(__be32 addr)
         res.r = NULL;
 #endif
 
-        local_table = fib_get_table(RT_TABLE_LOCAL);
+        local_table = fib_get_table(&init_net, RT_TABLE_LOCAL);
         if (!local_table || local_table->tb_lookup(local_table, &fl, &res))
                 return NULL;
         if (res.type != RTN_LOCAL)
@@ -183,7 +183,7 @@ static inline unsigned __inet_dev_addr_type(const struct net_device *dev,
         res.r = NULL;
 #endif
 
-        local_table = fib_get_table(RT_TABLE_LOCAL);
+        local_table = fib_get_table(&init_net, RT_TABLE_LOCAL);
         if (local_table) {
                 ret = RTN_UNICAST;
                 if (!local_table->tb_lookup(local_table, &fl, &res)) {
@@ -453,13 +453,13 @@ int ip_rt_ioctl(unsigned int cmd, void __user *arg)
                         struct fib_table *tb;
 
                         if (cmd == SIOCDELRT) {
-                                tb = fib_get_table(cfg.fc_table);
+                                tb = fib_get_table(&init_net, cfg.fc_table);
                                 if (tb)
                                         err = tb->tb_delete(tb, &cfg);
                                 else
                                         err = -ESRCH;
                         } else {
-                                tb = fib_new_table(cfg.fc_table);
+                                tb = fib_new_table(&init_net, cfg.fc_table);
                                 if (tb)
                                         err = tb->tb_insert(tb, &cfg);
                                 else
@@ -573,7 +573,7 @@ static int inet_rtm_delroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *ar
         if (err < 0)
                 goto errout;
 
-        tb = fib_get_table(cfg.fc_table);
+        tb = fib_get_table(net, cfg.fc_table);
         if (tb == NULL) {
                 err = -ESRCH;
                 goto errout;
@@ -598,7 +598,7 @@ static int inet_rtm_newroute(struct sk_buff *skb, struct nlmsghdr* nlh, void *ar
         if (err < 0)
                 goto errout;
 
-        tb = fib_new_table(cfg.fc_table);
+        tb = fib_new_table(&init_net, cfg.fc_table);
         if (tb == NULL) {
                 err = -ENOBUFS;
                 goto errout;
@@ -671,9 +671,9 @@ static void fib_magic(int cmd, int type, __be32 dst, int dst_len, struct in_ifad
         };
 
         if (type == RTN_UNICAST)
-                tb = fib_new_table(RT_TABLE_MAIN);
+                tb = fib_new_table(&init_net, RT_TABLE_MAIN);
         else
-                tb = fib_new_table(RT_TABLE_LOCAL);
+                tb = fib_new_table(&init_net, RT_TABLE_LOCAL);
 
         if (tb == NULL)
                 return;
@@ -848,7 +848,7 @@ static void nl_fib_input(struct sk_buff *skb)
         nlh = nlmsg_hdr(skb);
 
         frn = (struct fib_result_nl *) NLMSG_DATA(nlh);
-        tb = fib_get_table(frn->tb_id_in);
+        tb = fib_get_table(&init_net, frn->tb_id_in);
 
         nl_fib_lookup(frn, tb);
 
diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index 694a072d8090..d20ae2e28ab5 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -796,7 +796,7 @@ struct fib_iter_state {
 static struct fib_alias *fib_get_first(struct seq_file *seq)
 {
         struct fib_iter_state *iter = seq->private;
-        struct fib_table *main_table = fib_get_table(RT_TABLE_MAIN);
+        struct fib_table *main_table = fib_get_table(&init_net, RT_TABLE_MAIN);
         struct fn_hash *table = (struct fn_hash *)main_table->tb_data;
 
         iter->bucket    = 0;
@@ -937,7 +937,7 @@ static void *fib_seq_start(struct seq_file *seq, loff_t *pos)
         void *v = NULL;
 
         read_lock(&fib_hash_lock);
-        if (fib_get_table(RT_TABLE_MAIN))
+        if (fib_get_table(&init_net, RT_TABLE_MAIN))
                 v = *pos ? fib_get_idx(seq, *pos - 1) : SEQ_START_TOKEN;
         return v;
 }
diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c
index 1aae61c8ea6a..49819fe7e4c3 100644
--- a/net/ipv4/fib_rules.c
+++ b/net/ipv4/fib_rules.c
@@ -93,7 +93,7 @@ static int fib4_rule_action(struct fib_rule *rule, struct flowi *flp,
                 goto errout;
         }
 
-        if ((tbl = fib_get_table(rule->table)) == NULL)
+        if ((tbl = fib_get_table(&init_net, rule->table)) == NULL)
                 goto errout;
 
         err = tbl->tb_lookup(tbl, flp, (struct fib_result *) arg->result);
@@ -109,7 +109,7 @@ void fib_select_default(const struct flowi *flp, struct fib_result *res)
         if (res->r && res->r->action == FR_ACT_TO_TBL &&
             FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK) {
                 struct fib_table *tb;
-                if ((tb = fib_get_table(res->r->table)) != NULL)
+                if ((tb = fib_get_table(&init_net, res->r->table)) != NULL)
                         tb->tb_select_default(tb, flp, res);
         }
 }
@@ -130,13 +130,13 @@ static int fib4_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
         return 1;
 }
 
-static struct fib_table *fib_empty_table(void)
+static struct fib_table *fib_empty_table(struct net *net)
 {
         u32 id;
 
         for (id = 1; id <= RT_TABLE_MAX; id++)
-                if (fib_get_table(id) == NULL)
-                        return fib_new_table(id);
+                if (fib_get_table(net, id) == NULL)
+                        return fib_new_table(net, id);
         return NULL;
 }
 
@@ -159,7 +159,7 @@ static int fib4_rule_configure(struct fib_rule *rule, struct sk_buff *skb,
                 if (rule->action == FR_ACT_TO_TBL) {
                         struct fib_table *table;
 
-                        table = fib_empty_table();
+                        table = fib_empty_table(&init_net);
                         if (table == NULL) {
                                 err = -ENOBUFS;
                                 goto errout;
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 92b687e6a472..fc0624e6a649 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -2167,12 +2167,12 @@ static int fib_triestat_seq_show(struct seq_file *seq, void *v)
         struct fib_table *tb;
 
         trie_local = NULL;
-        tb = fib_get_table(RT_TABLE_LOCAL);
+        tb = fib_get_table(&init_net, RT_TABLE_LOCAL);
         if (tb)
                 trie_local = (struct trie *) tb->tb_data;
 
         trie_main = NULL;
-        tb = fib_get_table(RT_TABLE_MAIN);
+        tb = fib_get_table(&init_net, RT_TABLE_MAIN);
         if (tb)
                 trie_main = (struct trie *) tb->tb_data;
 
@@ -2239,12 +2239,12 @@ static void *fib_trie_seq_start(struct seq_file *seq, loff_t *pos)
         struct fib_table *tb;
 
         if (!iter->trie_local) {
-                tb = fib_get_table(RT_TABLE_LOCAL);
+                tb = fib_get_table(&init_net, RT_TABLE_LOCAL);
                 if (tb)
                         iter->trie_local = (struct trie *) tb->tb_data;
         }
         if (!iter->trie_main) {
-                tb = fib_get_table(RT_TABLE_MAIN);
+                tb = fib_get_table(&init_net, RT_TABLE_MAIN);
                 if (tb)
                         iter->trie_main = (struct trie *) tb->tb_data;
         }