diff options
| author | Laszlo Attila Toth <panther@balabit.hu> | 2007-12-04 23:28:46 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 14:55:56 -0800 |
| commit | 0553811612a6178365f3b062c30234913b218a96 (patch) | |
| tree | 81e4fa4f6d0a8beeb7ace09e7e4cb2375c9bfea1 | |
| parent | 0265ab44bacc1a1e0e3f5873d8ca2d5a29e33db2 (diff) | |
[IPV4]: Add inet_dev_addr_type()
Address type search can be limited to an interface by
inet_dev_addr_type function.
Signed-off-by: Laszlo Attila Toth <panther@balabit.hu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/route.h | 1 | ||||
| -rw-r--r-- | net/ipv4/fib_frontend.c | 21 |
2 files changed, 20 insertions, 2 deletions
diff --git a/include/net/route.h b/include/net/route.h index 59b0b19205a..76b08c1affc 100644 --- a/include/net/route.h +++ b/include/net/route.h @@ -118,6 +118,7 @@ extern unsigned short ip_rt_frag_needed(struct iphdr *iph, unsigned short new_mt extern void ip_rt_send_redirect(struct sk_buff *skb); extern unsigned inet_addr_type(__be32 addr); +extern unsigned inet_dev_addr_type(const struct net_device *dev, __be32 addr); extern void ip_rt_multicast_event(struct in_device *); extern int ip_rt_ioctl(unsigned int cmd, void __user *arg); extern void ip_rt_get_source(u8 *src, struct rtable *rt); diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index e02aba5fa13..d90b42f3630 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -155,7 +155,12 @@ out: return dev; } -unsigned inet_addr_type(__be32 addr) +/* + * Find address type as if only "dev" was present in the system. If + * on_dev is NULL then all interfaces are taken into consideration. + */ +static inline unsigned __inet_dev_addr_type(const struct net_device *dev, + __be32 addr) { struct flowi fl = { .nl_u = { .ip4_u = { .daddr = addr } } }; struct fib_result res; @@ -175,13 +180,24 @@ unsigned inet_addr_type(__be32 addr) if (local_table) { ret = RTN_UNICAST; if (!local_table->tb_lookup(local_table, &fl, &res)) { - ret = res.type; + if (!dev || dev == res.fi->fib_dev) + ret = res.type; fib_res_put(&res); } } return ret; } +unsigned int inet_addr_type(__be32 addr) +{ + return __inet_dev_addr_type(NULL, addr); +} + +unsigned int inet_dev_addr_type(const struct net_device *dev, __be32 addr) +{ + return __inet_dev_addr_type(dev, addr); +} + /* Given (packet source, input interface) and optional (dst, oif, tos): - (main) check, that source is valid i.e. not broadcast or our local address. @@ -940,4 +956,5 @@ void __init ip_fib_init(void) } EXPORT_SYMBOL(inet_addr_type); +EXPORT_SYMBOL(inet_dev_addr_type); EXPORT_SYMBOL(ip_dev_find); |