attr.c File Reference

#include <netlink-local.h>
#include <netlink/netlink.h>
#include <netlink/utils.h>
#include <netlink/addr.h>
#include <netlink/attr.h>
#include <netlink/msg.h>
#include <linux/socket.h>

Include dependency graph for attr.c:

Functions
Attribute Size Calculation
int	nla_attr_size (int payload)
	Return size of attribute whithout padding. More...
int	nla_total_size (int payload)
	Return size of attribute including padding. More...
int	nla_padlen (int payload)
	Return length of padding at the tail of the attribute. More...
Helper Functions
int	nla_memcpy (void *dest, struct nlattr *src, int count)
	Copy attribute payload to another memory area. More...
size_t	nla_strlcpy (char *dst, const struct nlattr *nla, size_t dstsize)
	Copy string attribute payload to a buffer. More...
int	nla_memcmp (const struct nlattr *nla, const void *data, size_t size)
	Compare attribute payload with memory area. More...
int	nla_strcmp (const struct nlattr *nla, const char *str)
	Compare string attribute payload with string. More...
Unspecific Attribute
struct nlattr *	nla_reserve (struct nl_msg *msg, int attrtype, int attrlen)
	Reserve space for a attribute. More...
int	nla_put (struct nl_msg *msg, int attrtype, int datalen, const void *data)
	Add a unspecific attribute to netlink message. More...
int	nla_put_data (struct nl_msg *msg, int attrtype, struct nl_data *data)
	Add abstract data as unspecific attribute to netlink message. More...
int	nla_put_addr (struct nl_msg *msg, int attrtype, struct nl_addr *addr)
	Add abstract address as unspecific attribute to netlink message. More...
Integer Attributes
int	nla_put_u8 (struct nl_msg *msg, int attrtype, uint8_t value)
	Add 8 bit integer attribute to netlink message. More...
uint8_t	nla_get_u8 (struct nlattr *nla)
	Return value of 8 bit integer attribute. More...
int	nla_put_u16 (struct nl_msg *msg, int attrtype, uint16_t value)
	Add 16 bit integer attribute to netlink message. More...
uint16_t	nla_get_u16 (struct nlattr *nla)
	Return payload of 16 bit integer attribute. More...
int	nla_put_u32 (struct nl_msg *msg, int attrtype, uint32_t value)
	Add 32 bit integer attribute to netlink message. More...
uint32_t	nla_get_u32 (struct nlattr *nla)
	Return payload of 32 bit integer attribute. More...
int	nla_put_u64 (struct nl_msg *msg, int attrtype, uint64_t value)
	Add 64 bit integer attribute to netlink message. More...
uint64_t	nla_get_u64 (struct nlattr *nla)
	Return payload of u64 attribute. More...
String Attribute
int	nla_put_string (struct nl_msg *msg, int attrtype, const char *str)
	Add string attribute to netlink message. More...
char *	nla_get_string (struct nlattr *nla)
	Return payload of string attribute. More...
char *	nla_strdup (struct nlattr *nla)
Flag Attribute
int	nla_put_flag (struct nl_msg *msg, int attrtype)
	Add flag netlink attribute to netlink message. More...
int	nla_get_flag (struct nlattr *nla)
	Return true if flag attribute is set. More...
Microseconds Attribute
int	nla_put_msecs (struct nl_msg *n, int attrtype, unsigned long msecs)
	Add a msecs netlink attribute to a netlink message. More...
unsigned long	nla_get_msecs (struct nlattr *nla)
	Return payload of msecs attribute. More...
Nested Attribute
int	nla_put_nested (struct nl_msg *msg, int attrtype, struct nl_msg *nested)
	Add nested attributes to netlink message. More...
struct nlattr *	nla_nest_start (struct nl_msg *msg, int attrtype)
	Start a new level of nested attributes. More...
int	nla_nest_end (struct nl_msg *msg, struct nlattr *start)
	Finalize nesting of attributes. More...
int	nla_parse_nested (struct nlattr *tb[], int maxtype, struct nlattr *nla, struct nla_policy *policy)
	Create attribute index based on nested attribute. More...

Parsing Attributes
int	nla_type (const struct nlattr *nla)
	Return type of the attribute. More...
void *	nla_data (const struct nlattr *nla)
	Return pointer to the payload section. More...
int	nla_len (const struct nlattr *nla)
	Return length of the payload . More...
int	nla_ok (const struct nlattr *nla, int remaining)
	Check if the attribute header and payload can be accessed safely. More...
struct nlattr *	nla_next (const struct nlattr *nla, int *remaining)
	Return next attribute in a stream of attributes. More...
int	nla_parse (struct nlattr *tb[], int maxtype, struct nlattr *head, int len, struct nla_policy *policy)
	Create attribute index based on a stream of attributes. More...
int	nla_validate (struct nlattr *head, int len, int maxtype, struct nla_policy *policy)
	Validate a stream of attributes. More...
struct nlattr *	nla_find (struct nlattr *head, int len, int attrtype)
	Find a single attribute in a stream of attributes. More...