diff options
| author | David Ahern <dsahern@gmail.com> | 2018-10-15 18:56:43 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-10-16 00:13:12 -0700 |
| commit | 18a8021a7be3207686851208f91a2f105b2d4703 (patch) | |
| tree | 0d955c71e85183c169450022e6446f3aff563f15 /net/ipv4/fib_frontend.c | |
| parent | 4724676d551c0961659b1da3fb4b5928169fb184 (diff) | |
net/ipv4: Plumb support for filtering route dumps
Implement kernel side filtering of routes by table id, egress device index,
protocol and route type. If the table id is given in the filter, lookup the
table and call fib_table_dump directly for it.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/fib_frontend.c')
| -rw-r--r-- | net/ipv4/fib_frontend.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 850850dd80e1..37dc8ac366fd 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -855,6 +855,17 @@ static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb) ((struct rtmsg *)nlmsg_data(nlh))->rtm_flags & RTM_F_CLONED) return skb->len; + if (filter.table_id) { + tb = fib_get_table(net, filter.table_id); + if (!tb) { + NL_SET_ERR_MSG(cb->extack, "ipv4: FIB table does not exist"); + return -ENOENT; + } + + err = fib_table_dump(tb, skb, cb, &filter); + return skb->len ? : err; + } + s_h = cb->args[0]; s_e = cb->args[1]; @@ -869,7 +880,7 @@ static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb) if (dumped) memset(&cb->args[2], 0, sizeof(cb->args) - 2 * sizeof(cb->args[0])); - err = fib_table_dump(tb, skb, cb); + err = fib_table_dump(tb, skb, cb, &filter); if (err < 0) { if (likely(skb->len)) goto out; |