diff options
Diffstat (limited to 'include/linux/skbuff.h')
| -rw-r--r-- | include/linux/skbuff.h | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 502787c29ce9..735ff1525f48 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -1073,7 +1073,8 @@ static inline __u32 skb_get_hash_flowi4(struct sk_buff *skb, const struct flowi4 return skb->hash; } -__u32 skb_get_hash_perturb(const struct sk_buff *skb, u32 perturb); +__u32 skb_get_hash_perturb(const struct sk_buff *skb, + const siphash_key_t *perturb); static inline __u32 skb_get_hash_raw(const struct sk_buff *skb) { @@ -3664,5 +3665,35 @@ static inline unsigned int skb_gso_network_seglen(const struct sk_buff *skb) return hdr_len + skb_gso_transport_seglen(skb); } +/** + * skb_gso_mac_seglen - Return length of individual segments of a gso packet + * + * @skb: GSO skb + * + * skb_gso_mac_seglen is used to determine the real size of the + * individual segments, including MAC/L2, Layer3 (IP, IPv6) and L4 + * headers (TCP/UDP). + */ +static inline unsigned int skb_gso_mac_seglen(const struct sk_buff *skb) +{ + unsigned int hdr_len = skb_transport_header(skb) - skb_mac_header(skb); + return hdr_len + skb_gso_transport_seglen(skb); +} + +/** + * skb_gso_validate_mac_len - Will a split GSO skb fit in a given length? + * + * @skb: GSO skb + * @len: length to validate against + * + * skb_gso_validate_mac_len validates if a given skb will fit a wanted + * length once split, including L2, L3 and L4 headers and the payload. + */ +static inline bool +skb_gso_validate_mac_len(const struct sk_buff *skb, unsigned int len) +{ + return skb_gso_mac_seglen(skb) <= len; +} + #endif /* __KERNEL__ */ #endif /* _LINUX_SKBUFF_H */ |