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Diffstat (limited to 'net/ipv4/fib_frontend.c')
-rw-r--r--net/ipv4/fib_frontend.c105
1 files changed, 27 insertions, 78 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index 1d2cdd43a878..a373a259253c 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -51,11 +51,11 @@ static int __net_init fib4_rules_init(struct net *net)
{
struct fib_table *local_table, *main_table;
- local_table = fib_hash_table(RT_TABLE_LOCAL);
+ local_table = fib_trie_table(RT_TABLE_LOCAL);
if (local_table == NULL)
return -ENOMEM;
- main_table = fib_hash_table(RT_TABLE_MAIN);
+ main_table = fib_trie_table(RT_TABLE_MAIN);
if (main_table == NULL)
goto fail;
@@ -82,7 +82,7 @@ struct fib_table *fib_new_table(struct net *net, u32 id)
if (tb)
return tb;
- tb = fib_hash_table(id);
+ tb = fib_trie_table(id);
if (!tb)
return NULL;
h = id & (FIB_TABLE_HASHSZ - 1);
@@ -114,21 +114,6 @@ struct fib_table *fib_get_table(struct net *net, u32 id)
}
#endif /* CONFIG_IP_MULTIPLE_TABLES */
-void fib_select_default(struct net *net,
- const struct flowi *flp, struct fib_result *res)
-{
- struct fib_table *tb;
- int table = RT_TABLE_MAIN;
-#ifdef CONFIG_IP_MULTIPLE_TABLES
- if (res->r == NULL || res->r->action != FR_ACT_TO_TBL)
- return;
- table = res->r->table;
-#endif
- tb = fib_get_table(net, table);
- if (FIB_RES_GW(*res) && FIB_RES_NH(*res).nh_scope == RT_SCOPE_LINK)
- fib_table_select_default(tb, flp, res);
-}
-
static void fib_flush(struct net *net)
{
int flushed = 0;
@@ -147,46 +132,6 @@ static void fib_flush(struct net *net)
rt_cache_flush(net, -1);
}
-/**
- * __ip_dev_find - find the first device with a given source address.
- * @net: the net namespace
- * @addr: the source address
- * @devref: if true, take a reference on the found device
- *
- * If a caller uses devref=false, it should be protected by RCU, or RTNL
- */
-struct net_device *__ip_dev_find(struct net *net, __be32 addr, bool devref)
-{
- struct flowi fl = {
- .fl4_dst = addr,
- };
- struct fib_result res = { 0 };
- struct net_device *dev = NULL;
- struct fib_table *local_table;
-
-#ifdef CONFIG_IP_MULTIPLE_TABLES
- res.r = NULL;
-#endif
-
- rcu_read_lock();
- local_table = fib_get_table(net, RT_TABLE_LOCAL);
- if (!local_table ||
- fib_table_lookup(local_table, &fl, &res, FIB_LOOKUP_NOREF)) {
- rcu_read_unlock();
- return NULL;
- }
- if (res.type != RTN_LOCAL)
- goto out;
- dev = FIB_RES_DEV(res);
-
- if (dev && devref)
- dev_hold(dev);
-out:
- rcu_read_unlock();
- return dev;
-}
-EXPORT_SYMBOL(__ip_dev_find);
-
/*
* Find address type as if only "dev" was present in the system. If
* on_dev is NULL then all interfaces are taken into consideration.
@@ -195,7 +140,7 @@ static inline unsigned __inet_dev_addr_type(struct net *net,
const struct net_device *dev,
__be32 addr)
{
- struct flowi fl = { .fl4_dst = addr };
+ struct flowi4 fl4 = { .daddr = addr };
struct fib_result res;
unsigned ret = RTN_BROADCAST;
struct fib_table *local_table;
@@ -213,7 +158,7 @@ static inline unsigned __inet_dev_addr_type(struct net *net,
if (local_table) {
ret = RTN_UNICAST;
rcu_read_lock();
- if (!fib_table_lookup(local_table, &fl, &res, FIB_LOOKUP_NOREF)) {
+ if (!fib_table_lookup(local_table, &fl4, &res, FIB_LOOKUP_NOREF)) {
if (!dev || dev == res.fi->fib_dev)
ret = res.type;
}
@@ -248,19 +193,21 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
u32 *itag, u32 mark)
{
struct in_device *in_dev;
- struct flowi fl = {
- .fl4_dst = src,
- .fl4_src = dst,
- .fl4_tos = tos,
- .mark = mark,
- .iif = oif
- };
+ struct flowi4 fl4;
struct fib_result res;
int no_addr, rpf, accept_local;
bool dev_match;
int ret;
struct net *net;
+ fl4.flowi4_oif = 0;
+ fl4.flowi4_iif = oif;
+ fl4.flowi4_mark = mark;
+ fl4.daddr = src;
+ fl4.saddr = dst;
+ fl4.flowi4_tos = tos;
+ fl4.flowi4_scope = RT_SCOPE_UNIVERSE;
+
no_addr = rpf = accept_local = 0;
in_dev = __in_dev_get_rcu(dev);
if (in_dev) {
@@ -268,14 +215,14 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
rpf = IN_DEV_RPFILTER(in_dev);
accept_local = IN_DEV_ACCEPT_LOCAL(in_dev);
if (mark && !IN_DEV_SRC_VMARK(in_dev))
- fl.mark = 0;
+ fl4.flowi4_mark = 0;
}
if (in_dev == NULL)
goto e_inval;
net = dev_net(dev);
- if (fib_lookup(net, &fl, &res))
+ if (fib_lookup(net, &fl4, &res))
goto last_resort;
if (res.type != RTN_UNICAST) {
if (res.type != RTN_LOCAL || !accept_local)
@@ -306,10 +253,10 @@ int fib_validate_source(__be32 src, __be32 dst, u8 tos, int oif,
goto last_resort;
if (rpf == 1)
goto e_rpf;
- fl.oif = dev->ifindex;
+ fl4.flowi4_oif = dev->ifindex;
ret = 0;
- if (fib_lookup(net, &fl, &res) == 0) {
+ if (fib_lookup(net, &fl4, &res) == 0) {
if (res.type == RTN_UNICAST) {
*spec_dst = FIB_RES_PREFSRC(res);
ret = FIB_RES_NH(res).nh_scope >= RT_SCOPE_HOST;
@@ -849,11 +796,11 @@ static void nl_fib_lookup(struct fib_result_nl *frn, struct fib_table *tb)
{
struct fib_result res;
- struct flowi fl = {
- .mark = frn->fl_mark,
- .fl4_dst = frn->fl_addr,
- .fl4_tos = frn->fl_tos,
- .fl4_scope = frn->fl_scope,
+ struct flowi4 fl4 = {
+ .flowi4_mark = frn->fl_mark,
+ .daddr = frn->fl_addr,
+ .flowi4_tos = frn->fl_tos,
+ .flowi4_scope = frn->fl_scope,
};
#ifdef CONFIG_IP_MULTIPLE_TABLES
@@ -866,7 +813,7 @@ static void nl_fib_lookup(struct fib_result_nl *frn, struct fib_table *tb)
frn->tb_id = tb->tb_id;
rcu_read_lock();
- frn->err = fib_table_lookup(tb, &fl, &res, FIB_LOOKUP_NOREF);
+ frn->err = fib_table_lookup(tb, &fl4, &res, FIB_LOOKUP_NOREF);
if (!frn->err) {
frn->prefixlen = res.prefixlen;
@@ -945,10 +892,12 @@ static int fib_inetaddr_event(struct notifier_block *this, unsigned long event,
#ifdef CONFIG_IP_ROUTE_MULTIPATH
fib_sync_up(dev);
#endif
+ fib_update_nh_saddrs(dev);
rt_cache_flush(dev_net(dev), -1);
break;
case NETDEV_DOWN:
fib_del_ifaddr(ifa);
+ fib_update_nh_saddrs(dev);
if (ifa->ifa_dev->ifa_list == NULL) {
/* Last address was deleted from this interface.
* Disable IP.
@@ -1101,5 +1050,5 @@ void __init ip_fib_init(void)
register_netdevice_notifier(&fib_netdev_notifier);
register_inetaddr_notifier(&fib_inetaddr_notifier);
- fib_hash_init();
+ fib_trie_init();
}