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net: Add struct for fib dump filter

Ver código fonte 
Add struct fib_dump_filter for options on limiting which routes are
returned in a dump request. The current list is table id, protocol,
route type, rtm_flags and nexthop device index. struct net is needed
to lookup the net_device from the index.

Declare the filter for each route dump handler and plumb the new
arguments from dump handlers to ip_valid_fib_dump_req.

Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Esse commit está contido em:
David Ahern
2018-10-15 18:56:42 -07:00
commit de David S. Miller
pai 22e6c58b8c
commit 4724676d55
7 arquivos alterados com 38 adições e 12 exclusões
Baixar arquivo de patch Baixar arquivo de diferenças Expandir todos os arquivos Colapsar todos os arquivos

6
net/ipv4/fib_frontend.c
Ver arquivo

@@ -802,7 +802,8 @@ errout:
return err;
}
int ip_valid_fib_dump_req(const struct nlmsghdr *nlh,
int ip_valid_fib_dump_req(struct net *net, const struct nlmsghdr *nlh,
struct fib_dump_filter *filter,
struct netlink_ext_ack *extack)
{
struct rtmsg *rtm;
@@ -837,6 +838,7 @@ static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
{
const struct nlmsghdr *nlh = cb->nlh;
struct net *net = sock_net(skb->sk);
struct fib_dump_filter filter = {};
unsigned int h, s_h;
unsigned int e = 0, s_e;
struct fib_table *tb;
@@ -844,7 +846,7 @@ static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
int dumped = 0, err;
if (cb->strict_check) {
err = ip_valid_fib_dump_req(nlh, cb->extack);
err = ip_valid_fib_dump_req(net, nlh, &filter, cb->extack);
if (err < 0)
return err;
}

8
net/ipv4/ipmr.c
Ver arquivo

@@ -2527,9 +2527,13 @@ errout_free:
static int ipmr_rtm_dumproute(struct sk_buff *skb, struct netlink_callback *cb)
{
if (cb->strict_check) {
int err = ip_valid_fib_dump_req(cb->nlh, cb->extack);
struct fib_dump_filter filter = {};
if (cb->strict_check) {
int err;
err = ip_valid_fib_dump_req(sock_net(skb->sk), cb->nlh,
&filter, cb->extack);
if (err < 0)
return err;
}