Function report | 
Source Code:include\linux\skbuff.h | 
Create Date:2022-07-28 05:52:30 | 
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick | 
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| Annotation kernel can get tool activity | Download SCCT | Chinese | 
Name: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
Proto:static inline int skb_tailroom(const struct sk_buff *skb)
Type:int
Parameter:
| Type | Parameter | Name | 
|---|---|---|
| const struct sk_buff * | skb | 
| 2312 | Return If skb_is_nonlinear(skb) Then 0 Else end - These elements must be at the end, see alloc_skb() for details. | 
| Name | Describe | 
|---|---|
| nla_reserve | la_reserve - reserve room for attribute on the skb*@skb: socket buffer to reserve room on*@attrtype: attribute type*@attrlen: length of attribute payload* Adds a netlink attribute header to a socket buffer and reserves | 
| nla_reserve_64bit | 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 | 
| nla_reserve_nohdr | la_reserve_nohdr - reserve room for attribute without header*@skb: socket buffer to reserve room on*@attrlen: length of attribute payload* Reserves room for attribute payload without a header | 
| nla_put | la_put - Add a netlink attribute to a socket buffer*@skb: socket buffer to add attribute to*@attrtype: attribute type*@attrlen: length of attribute payload*@data: head of attribute payload* Returns -EMSGSIZE if the tailroom of the skb is insufficient to | 
| nla_put_64bit | la_put_64bit - Add a netlink attribute to a socket buffer and align it*@skb: socket buffer to add attribute to*@attrtype: attribute type*@attrlen: length of attribute payload*@data: head of attribute payload*@padattr: attribute type for the padding* | 
| nla_put_nohdr | la_put_nohdr - Add a netlink attribute without header*@skb: socket buffer to add attribute to*@attrlen: length of attribute payload*@data: head of attribute payload* Returns -EMSGSIZE if the tailroom of the skb is insufficient to store | 
| nla_append | la_append - Add a netlink attribute without header or padding*@skb: socket buffer to add attribute to*@attrlen: length of attribute payload*@data: head of attribute payload* Returns -EMSGSIZE if the tailroom of the skb is insufficient to store | 
| audit_expand | audit_expand - expand skb in the audit buffer*@ab: audit_buffer*@extra: space to add at tail of the skb* Returns 0 (no space) on failed expansion, or available space if* successful. | 
| audit_log_vformat | Format an audit message into the audit buffer. If there isn't enough* room in the audit buffer, more room will be allocated and vsnprint* will be called a second time. Currently, we assume that a printk | 
| audit_log_n_hex | audit_log_n_hex - convert a buffer to hex and append it to the audit skb*@ab: the audit_buffer*@buf: buffer to convert to hex*@len: length of @buf to be converted* No return value; failure to expand is silently ignored | 
| audit_log_n_string | Format a string of no more than slen characters into the audit buffer,* enclosed in quote marks. | 
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