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 /net | |
| parent | [NETFILTER]: merge ipt_owner/ip6t_owner in xt_owner (diff) | |
| download | linux-dev-0553811612a6178365f3b062c30234913b218a96.tar.xz linux-dev-0553811612a6178365f3b062c30234913b218a96.zip | |
[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>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ipv4/fib_frontend.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index e02aba5fa136..d90b42f3630c 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); |