summaryrefslogtreecommitdiff
path: root/include/net
diff options
context:
space:
mode:
authorVincent Bernat <vincent@bernat.im>2018-07-31 22:18:11 +0300
committerDavid S. Miller <davem@davemloft.net>2018-08-01 19:50:04 +0300
commit83ba4645152d1177c161750e1064e3a8e7cee19b (patch)
tree7209c851dda98efb2aa1e7a42ff738d3fe560c38 /include/net
parentd39db3b4d60c9bc4282b36753a7255d2a5ef0384 (diff)
downloadlinux-83ba4645152d1177c161750e1064e3a8e7cee19b.tar.xz
net: add helpers checking if socket can be bound to nonlocal address
The construction "net->ipv4.sysctl_ip_nonlocal_bind || inet->freebind || inet->transparent" is present three times and its IPv6 counterpart is also present three times. We introduce two small helpers to characterize these tests uniformly. Signed-off-by: Vincent Bernat <vincent@bernat.im> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/inet_sock.h8
-rw-r--r--include/net/ipv6.h7
2 files changed, 15 insertions, 0 deletions
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 314be484c696..e03b93360f33 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -359,4 +359,12 @@ static inline bool inet_get_convert_csum(struct sock *sk)
return !!inet_sk(sk)->convert_csum;
}
+
+static inline bool inet_can_nonlocal_bind(struct net *net,
+ struct inet_sock *inet)
+{
+ return net->ipv4.sysctl_ip_nonlocal_bind ||
+ inet->freebind || inet->transparent;
+}
+
#endif /* _INET_SOCK_H */
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index a44509f4e985..82deb684ba73 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -766,6 +766,13 @@ static inline int ip6_sk_dst_hoplimit(struct ipv6_pinfo *np, struct flowi6 *fl6,
return hlimit;
}
+static inline bool ipv6_can_nonlocal_bind(struct net *net,
+ struct inet_sock *inet)
+{
+ return net->ipv6.sysctl.ip_nonlocal_bind ||
+ inet->freebind || inet->transparent;
+}
+
/* copy IPv6 saddr & daddr to flow_keys, possibly using 64bit load/store
* Equivalent to : flow->v6addrs.src = iph->saddr;
* flow->v6addrs.dst = iph->daddr;