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bridge: mcast: Account for missing attributes

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The 'MDBA_MDB' and 'MDBA_MDB_ENTRY' nest attributes are not accounted
for when calculating the size of MDB notifications. Add them along with
comments for existing attributes.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2023-10-25 15:30:09 +03:00 committed by David S. Miller
parent b9109b5b77
commit 1b6d993509
1 changed files with 11 additions and 4 deletions
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15
net/bridge/br_mdb.c
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@ -452,11 +452,18 @@ static int nlmsg_populate_mdb_fill(struct sk_buff *skb,
static size_t rtnl_mdb_nlmsg_size(struct net_bridge_port_group *pg)
{
size_t nlmsg_size = NLMSG_ALIGN(sizeof(struct br_port_msg)) +
nla_total_size(sizeof(struct br_mdb_entry)) +
nla_total_size(sizeof(u32));
struct net_bridge_group_src *ent;
size_t addr_size = 0;
size_t nlmsg_size, addr_size = 0;
nlmsg_size = NLMSG_ALIGN(sizeof(struct br_port_msg)) +
/* MDBA_MDB */
nla_total_size(0) +
/* MDBA_MDB_ENTRY */
nla_total_size(0) +
/* MDBA_MDB_ENTRY_INFO */
nla_total_size(sizeof(struct br_mdb_entry)) +
/* MDBA_MDB_EATTR_TIMER */
nla_total_size(sizeof(u32));
if (!pg)
goto out;