diff options
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/addrconf.h | 4 | ||||
| -rw-r--r-- | include/net/af_unix.h | 2 | ||||
| -rw-r--r-- | include/net/ip_tunnels.h | 33 |
3 files changed, 38 insertions, 1 deletions
diff --git a/include/net/addrconf.h b/include/net/addrconf.h index 700a19e0455e..5cf1a7377407 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -435,6 +435,10 @@ static inline void in6_ifa_hold(struct inet6_ifaddr *ifp) refcount_inc(&ifp->refcnt); } +static inline bool in6_ifa_hold_safe(struct inet6_ifaddr *ifp) +{ + return refcount_inc_not_zero(&ifp->refcnt); +} /* * compute link-local solicited-node multicast address diff --git a/include/net/af_unix.h b/include/net/af_unix.h index 32d21983c696..094afdf7dea1 100644 --- a/include/net/af_unix.h +++ b/include/net/af_unix.h @@ -56,7 +56,7 @@ struct unix_sock { struct mutex iolock, bindlock; struct sock *peer; struct list_head link; - atomic_long_t inflight; + unsigned long inflight; spinlock_t lock; unsigned long gc_flags; #define UNIX_GC_CANDIDATE 0 diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h index 17ec652e8f12..eca36edb8557 100644 --- a/include/net/ip_tunnels.h +++ b/include/net/ip_tunnels.h @@ -332,6 +332,39 @@ static inline bool pskb_inet_may_pull(struct sk_buff *skb) return pskb_network_may_pull(skb, nhlen); } +/* Variant of pskb_inet_may_pull(). + */ +static inline bool skb_vlan_inet_prepare(struct sk_buff *skb) +{ + int nhlen = 0, maclen = ETH_HLEN; + __be16 type = skb->protocol; + + /* Essentially this is skb_protocol(skb, true) + * And we get MAC len. + */ + if (eth_type_vlan(type)) + type = __vlan_get_protocol(skb, type, &maclen); + + switch (type) { +#if IS_ENABLED(CONFIG_IPV6) + case htons(ETH_P_IPV6): + nhlen = sizeof(struct ipv6hdr); + break; +#endif + case htons(ETH_P_IP): + nhlen = sizeof(struct iphdr); + break; + } + /* For ETH_P_IPV6/ETH_P_IP we make sure to pull + * a base network header in skb->head. + */ + if (!pskb_may_pull(skb, maclen + nhlen)) + return false; + + skb_set_network_header(skb, maclen); + return true; +} + static inline int ip_encap_hlen(struct ip_tunnel_encap *e) { const struct ip_tunnel_encap_ops *ops; |