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net: sched: em_ipt: add support for addrtype matching

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Allow em_ipt to use addrtype for matching. Restrict the use only to
revision 1 which has IPv6 support. Since it's a NFPROTO_UNSPEC xt match
we use the user-specified nfproto for matching, in case it's unspecified
both v4/v6 will be matched by the rule.

v2: no changes, was patch 5 in v1

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov 2019-06-27 11:10:47 +03:00 committed by David S. Miller
parent ba3d24d48f
commit 0c4231c784
1 changed files with 14 additions and 0 deletions
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14
net/sched/em_ipt.c
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@ -72,11 +72,25 @@ static int policy_validate_match_data(struct nlattr **tb, u8 mrev)
return 0;
}
static int addrtype_validate_match_data(struct nlattr **tb, u8 mrev)
{
if (mrev != 1) {
pr_err("only addrtype match revision 1 supported");
return -EINVAL;
}
return 0;
}
static const struct em_ipt_xt_match em_ipt_xt_matches[] = {
{
.match_name = "policy",
.validate_match_data = policy_validate_match_data
},
{
.match_name = "addrtype",
.validate_match_data = addrtype_validate_match_data
},
{}
};