From: Waldemar Kozaczuk <jwkozac...@gmail.com>
Committer: Waldemar Kozaczuk <jwkozac...@gmail.com>
Branch: master
netlink: do not put IFA_BROADCAST for loopback address
This is a minor adjustment to make OSv implementation match what Linux
does - skip IFA_BROADCAST attributes for loopback address in NEWADDR
response.
Signed-off-by: Waldemar Kozaczuk <jwkozac...@gmail.com>
---
diff --git a/bsd/sys/compat/linux/linux_netlink.cc
b/bsd/sys/compat/linux/linux_netlink.cc
--- a/bsd/sys/compat/linux/linux_netlink.cc
+++ b/bsd/sys/compat/linux/linux_netlink.cc
@@ -616,17 +616,23 @@ netlink_process_getaddr_msg(struct socket *so, struct
nlmsghdr *nlm)
in6_clearscope(&broadaddr.sin6_addr);
p_broadaddr = (struct bsd_sockaddr
*)&broadaddr;
}
- if (nla_put_sockaddr(m, IFA_ADDRESS, p_addr) ||
- nla_put_sockaddr(m, IFA_BROADCAST,
p_broadaddr)){
+ if (nla_put_sockaddr(m, IFA_ADDRESS, p_addr)){
+ error = ENOBUFS;
+ goto done;
+ }
+ if (!(ifm->ifa_flags & IFF_LOOPBACK) &&
nla_put_sockaddr(m, IFA_BROADCAST, p_broadaddr)){
error = ENOBUFS;
goto done;
}
}
else
#endif
{
- if (nla_put_sockaddr(m, IFA_ADDRESS,
ifa->ifa_addr) ||
- nla_put_sockaddr(m, IFA_BROADCAST,
ifa->ifa_broadaddr)){
+ if (nla_put_sockaddr(m, IFA_ADDRESS,
ifa->ifa_addr)){
+ error = ENOBUFS;
+ goto done;
+ }
+ if (!(ifm->ifa_flags & IFF_LOOPBACK) &&
nla_put_sockaddr(m, IFA_BROADCAST, ifa->ifa_broadaddr)){
error = ENOBUFS;
goto done;
}
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