diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/netfilter_ipv6/ip6_tables.h | 12 | ||||
| -rw-r--r-- | include/linux/skbuff.h | 13 |
2 files changed, 24 insertions, 1 deletions
diff --git a/include/linux/netfilter_ipv6/ip6_tables.h b/include/linux/netfilter_ipv6/ip6_tables.h index f549adccc94c..1bc898b14a80 100644 --- a/include/linux/netfilter_ipv6/ip6_tables.h +++ b/include/linux/netfilter_ipv6/ip6_tables.h @@ -287,7 +287,17 @@ extern unsigned int ip6t_do_table(struct sk_buff *skb, struct xt_table *table); /* Check for an extension */ -extern int ip6t_ext_hdr(u8 nexthdr); +static inline int +ip6t_ext_hdr(u8 nexthdr) +{ return (nexthdr == IPPROTO_HOPOPTS) || + (nexthdr == IPPROTO_ROUTING) || + (nexthdr == IPPROTO_FRAGMENT) || + (nexthdr == IPPROTO_ESP) || + (nexthdr == IPPROTO_AH) || + (nexthdr == IPPROTO_NONE) || + (nexthdr == IPPROTO_DSTOPTS); +} + /* find specified header and get offset to it */ extern int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset, int target, unsigned short *fragoff); diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 33370271b8b2..70a3f8d49118 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -481,6 +481,7 @@ struct sk_buff { union { __u32 mark; __u32 dropcount; + __u32 avail_size; }; sk_buff_data_t transport_header; @@ -1366,6 +1367,18 @@ static inline int skb_tailroom(const struct sk_buff *skb) } /** + * skb_availroom - bytes at buffer end + * @skb: buffer to check + * + * Return the number of bytes of free space at the tail of an sk_buff + * allocated by sk_stream_alloc() + */ +static inline int skb_availroom(const struct sk_buff *skb) +{ + return skb_is_nonlinear(skb) ? 0 : skb->avail_size - skb->len; +} + +/** * skb_reserve - adjust headroom * @skb: buffer to alter * @len: bytes to move |