Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:lib\nlattr.c Create Date:2022-07-28 07:16:29
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:la_reserve_64bit - reserve room for attribute on the skb and align it*@skb: socket buffer to reserve room on*@attrtype: attribute type*@attrlen: length of attribute payload*@padattr: attribute type for the padding* Adds a netlink attribute header to a

Proto:struct nlattr *nla_reserve_64bit(struct sk_buff *skb, int attrtype, int attrlen, int padattr)

Type:struct nlattr

Parameter:

TypeParameterName
struct sk_buff *skb
intattrtype
intattrlen
intpadattr
730  If la_need_padding_for_64bit - test 64-bit alignment of the next attribute*@skb: socket buffer the message is stored in* Return true if padding is needed to align the next attribute (nla_data()) to* a 64-bit aligned area. Then len = la_total_size_64bit - total length of attribute including padding*@payload: length of payload
732  Else len = la_total_size - total length of attribute including padding*@payload: length of payload
734  If Value for the false possibility is greater at compile time(skb_tailroom - bytes at buffer end*@skb: buffer to check* Return the number of bytes of free space at the tail of an sk_buff < len) Then Return NULL
737  Return __nla_reserve_64bit - reserve room for attribute on the skb and align it*@skb: socket buffer to reserve room on*@attrtype: attribute type*@attrlen: length of attribute payload*@padattr: attribute type for the padding* Adds a netlink attribute header to a