diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/ip6_route.h | 9 | ||||
| -rw-r--r-- | include/uapi/linux/in6.h | 4 |
2 files changed, 12 insertions, 1 deletions
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h index 017badb1aec7..00e3f12cb2f9 100644 --- a/include/net/ip6_route.h +++ b/include/net/ip6_route.h @@ -171,7 +171,14 @@ static inline int ip6_skb_dst_mtu(struct sk_buff *skb) static inline bool ip6_sk_accept_pmtu(const struct sock *sk) { - return inet6_sk(sk)->pmtudisc != IPV6_PMTUDISC_INTERFACE; + return inet6_sk(sk)->pmtudisc != IPV6_PMTUDISC_INTERFACE && + inet6_sk(sk)->pmtudisc != IPV6_PMTUDISC_OMIT; +} + +static inline bool ip6_sk_local_df(const struct sock *sk) +{ + return inet6_sk(sk)->pmtudisc < IPV6_PMTUDISC_DO || + inet6_sk(sk)->pmtudisc == IPV6_PMTUDISC_OMIT; } static inline struct in6_addr *rt6_nexthop(struct rt6_info *rt) diff --git a/include/uapi/linux/in6.h b/include/uapi/linux/in6.h index e9a1d2d973b6..0d8e0f0342dc 100644 --- a/include/uapi/linux/in6.h +++ b/include/uapi/linux/in6.h @@ -185,6 +185,10 @@ struct in6_flowlabel_req { * also see comments on IP_PMTUDISC_INTERFACE */ #define IPV6_PMTUDISC_INTERFACE 4 +/* weaker version of IPV6_PMTUDISC_INTERFACE, which allows packets to + * get fragmented if they exceed the interface mtu + */ +#define IPV6_PMTUDISC_OMIT 5 /* Flowlabel */ #define IPV6_FLOWLABEL_MGR 32 |