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rtnetlink: advertise allmulti counter 

Like what was done with IFLA_PROMISCUITY, add IFLA_ALLMULTI to advertise
the allmulti counter.
The flag IFF_ALLMULTI is advertised only if it was directly set by a
userland app.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Dichtel 2022-09-06 11:55:58 +02:00 committed by David S. Miller
parent da970726ea
commit 7e6e1b5716
2 changed files with 4 additions and 0 deletions
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1
include/uapi/linux/if_link.h
View File

@ -370,6 +370,7 @@ enum {
IFLA_GRO_MAX_SIZE,
IFLA_TSO_MAX_SIZE,
IFLA_TSO_MAX_SEGS,
IFLA_ALLMULTI, /* Allmulti count: > 0 means acts ALLMULTI */
__IFLA_MAX
};

3
net/core/rtnetlink.c
View File

@ -1057,6 +1057,7 @@ static noinline size_t if_nlmsg_size(const struct net_device *dev,
+ nla_total_size(4) /* IFLA_MASTER */
+ nla_total_size(1) /* IFLA_CARRIER */
+ nla_total_size(4) /* IFLA_PROMISCUITY */
+ nla_total_size(4) /* IFLA_ALLMULTI */
+ nla_total_size(4) /* IFLA_NUM_TX_QUEUES */
+ nla_total_size(4) /* IFLA_NUM_RX_QUEUES */
+ nla_total_size(4) /* IFLA_GSO_MAX_SEGS */
@ -1765,6 +1766,7 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb,
nla_put_u32(skb, IFLA_MAX_MTU, dev->max_mtu) ||
nla_put_u32(skb, IFLA_GROUP, dev->group) ||
nla_put_u32(skb, IFLA_PROMISCUITY, dev->promiscuity) ||
nla_put_u32(skb, IFLA_ALLMULTI, dev->allmulti) ||
nla_put_u32(skb, IFLA_NUM_TX_QUEUES, dev->num_tx_queues) ||
nla_put_u32(skb, IFLA_GSO_MAX_SEGS, dev->gso_max_segs) ||
nla_put_u32(skb, IFLA_GSO_MAX_SIZE, dev->gso_max_size) ||
@ -1926,6 +1928,7 @@ static const struct nla_policy ifla_policy[IFLA_MAX+1] = {
[IFLA_GRO_MAX_SIZE] = { .type = NLA_U32 },
[IFLA_TSO_MAX_SIZE] = { .type = NLA_REJECT },
[IFLA_TSO_MAX_SEGS] = { .type = NLA_REJECT },
[IFLA_ALLMULTI] = { .type = NLA_REJECT },
};
static const struct nla_policy ifla_info_policy[IFLA_INFO_MAX+1] = {