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net: rtnetlink: add ndm flags and state mask attributes

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Add ndm flags/state masks which will be used for bulk delete filtering.
All of these are used by the bridge and vxlan drivers. Also minimal attr
policy validation is added, it is up to ndo_fdb_del_bulk implementers to
further validate them.

Signed-off-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov 2022-04-13 13:52:00 +03:00 committed by David S. Miller
parent 1f78ee14ee
commit ea2c0f9e3f
2 changed files with 4 additions and 0 deletions
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2
include/uapi/linux/neighbour.h
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@ -32,6 +32,8 @@ enum {
NDA_NH_ID,
NDA_FDB_EXT_ATTRS,
NDA_FLAGS_EXT,
NDA_NDM_STATE_MASK,
NDA_NDM_FLAGS_MASK,
__NDA_MAX
};

2
net/core/rtnetlink.c
View File

@ -4172,6 +4172,8 @@ EXPORT_SYMBOL(ndo_dflt_fdb_del);
static const struct nla_policy fdb_del_bulk_policy[NDA_MAX + 1] = {
[NDA_VLAN] = { .type = NLA_U16 },
[NDA_IFINDEX] = NLA_POLICY_MIN(NLA_S32, 1),
[NDA_NDM_STATE_MASK] = { .type = NLA_U16 },
[NDA_NDM_FLAGS_MASK] = { .type = NLA_U8 },
};
static int rtnl_fdb_del(struct sk_buff *skb, struct nlmsghdr *nlh,