bonding: NS target should accept link local address

When setting bond NS target, we use bond_is_ip6_target_ok() to check
if the address valid. The link local address was wrongly rejected in
bond_changelink(), as most time the user just set the ARP/NS target to
gateway, while the IPv6 gateway is always a link local address when user
set up interface via SLAAC.

So remove the link local addr check when setting bond NS target.

Fixes: 129e3c1bab ("bonding: add new option ns_ip6_target")
Reported-by: Li Liang <[email protected]>
Signed-off-by: Hangbin Liu <[email protected]>
Reviewed-by: Jonathan Toppins <[email protected]>
Acked-by: Jay Vosburgh <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Hangbin Liu authored and David S. Miller committed 2022-05-28 15:29:56 +01:00
1 parent 911799172d
commit 5e1eeef69c
1 file changed
-5
-5
View File
@@ -290,11 +290,6 @@ static int bond_changelink(struct net_device *bond_dev, struct nlattr *tb[],
addr6 = nla_get_in6_addr(attr);
if (ipv6_addr_type(&addr6) & IPV6_ADDR_LINKLOCAL) {
NL_SET_ERR_MSG(extack, "Invalid IPv6 addr6");
return -EINVAL;
}
bond_opt_initextra(&newval, &addr6, sizeof(addr6));
err = __bond_opt_set(bond, BOND_OPT_NS_TARGETS,
&newval);