include/net/netlink.h

6 #include <linux/netlink.h>
11  *         Netlink Messages and Attributes Interface (As Seen On TV)
34  *   struct nlmsghdr			netlink message header
37  *   nlmsg_new()			create a new netlink message
38  *   nlmsg_put()			add a netlink message to an skb
40  *   nlmsg_end()			finalize netlink message
44  *   nlmsg_consume()			free a netlink message (expected)
45  *   nlmsg_free()			free a netlink message (drop)
65  *   nlmsg_next(nlh, remaining)		get next netlink message
69  *   nlmsg_validate()			validate netlink message incl. attrs
90  *   struct nlattr			netlink attribute header
156  *   nla_next(nla, remaining)		get next netlink attribute
478  * struct nl_info - netlink source information
479  * @nlh: Netlink message header of original request
481  * @portid: Netlink PORTID of requesting application
482  * @skip_notify: Skip netlink notifications to user space
494  * enum netlink_validation - netlink message/attribute validation levels
566  * Netlink Messages
570  * nlmsg_msg_size - length of netlink message not including padding
579  * nlmsg_total_size - length of netlink message including padding
598  * @nlh: netlink message header
607  * @nlh: netlink message header
616  * @nlh: netlink message header
628  * @nlh: netlink message header
637  * nlmsg_ok - check if the netlink message fits into the remaining bytes
638  * @nlh: netlink message header
649  * nlmsg_next - next netlink message in message stream
650  * @nlh: netlink message header
653  * Returns: the next netlink message in the message stream and
743  * __nlmsg_parse - parse attributes of a netlink message
744  * @nlh: netlink message header
771  * nlmsg_parse - parse attributes of a netlink message
772  * @nlh: netlink message header
791  * nlmsg_parse_deprecated - parse attributes of a netlink message
792  * @nlh: netlink message header
811  * nlmsg_parse_deprecated_strict - parse attributes of a netlink message
812  * @nlh: netlink message header
832  * nlmsg_find_attr - find a specific attribute in a netlink message
833  * @nlh: netlink message header
892  * nlmsg_validate_deprecated - validate a netlink message including attributes
916  * @nlh: netlink message header
926  * nlmsg_seq - return the seq number of netlink message
927  * @nlh: netlink message header
929  * Returns: 0 if netlink message is NULL
939  * @nlh: netlink message header
948  * nlmsg_put - Add a new netlink message to an skb
950  * @portid: netlink PORTID of requesting application
990  * nlmsg_put_answer - Add a new callback based netlink message to an skb
992  * @cb: netlink callback
1010  * nlmsg_new - Allocate a new netlink message
1023  * nlmsg_new_large - Allocate a new netlink message with non-contiguous
1037  * nlmsg_end - Finalize a netlink message
1039  * @nlh: netlink message header
1041  * Corrects the netlink message header to include the appended
1051  * nlmsg_get_pos - return current position in netlink message
1077  * nlmsg_cancel - Cancel construction of a netlink message
1079  * @nlh: netlink message header
1081  * Removes the complete netlink message including all
1090  * nlmsg_free - drop a netlink message
1091  * @skb: socket buffer of netlink message
1099  * nlmsg_consume - free a netlink message
1100  * @skb: socket buffer of netlink message
1108  * nlmsg_multicast_filtered - multicast a netlink message with filter function
1109  * @sk: netlink socket to spread messages to
1110  * @skb: netlink message as socket buffer
1111  * @portid: own netlink portid to avoid sending to yourself
1138  * nlmsg_multicast - multicast a netlink message
1139  * @sk: netlink socket to spread messages to
1140  * @skb: netlink message as socket buffer
1141  * @portid: own netlink portid to avoid sending to yourself
1153  * nlmsg_unicast - unicast a netlink message
1154  * @sk: netlink socket to spread message to
1155  * @skb: netlink message as socket buffer
1156  * @portid: netlink portid of the destination socket
1183  * @cb: netlink callback structure that stores the sequence number
1184  * @nlh: netlink message header to write the flag to
1187  * and if it did, advertises it in the netlink message header.
1206  * Netlink Attributes
1238  * @nla: netlink attribute
1247  * @nla: netlink attribute
1256  * @nla: netlink attribute
1264  * nla_ok - check if the netlink attribute fits into the remaining bytes
1265  * @nla: netlink attribute
1276  * nla_next - next netlink attribute in attribute stream
1277  * @nla: netlink attribute
1280  * Returns: the next netlink attribute in the attribute stream and
1348  * nla_put_u8 - Add a u8 netlink attribute to a socket buffer
1362  * nla_put_u16 - Add a u16 netlink attribute to a socket buffer
1375  * nla_put_be16 - Add a __be16 netlink attribute to a socket buffer
1388  * nla_put_net16 - Add 16-bit network byte order netlink attribute to a socket buffer
1401  * nla_put_le16 - Add a __le16 netlink attribute to a socket buffer
1414  * nla_put_u32 - Add a u32 netlink attribute to a socket buffer
1443  * nla_put_be32 - Add a __be32 netlink attribute to a socket buffer
1456  * nla_put_net32 - Add 32-bit network byte order netlink attribute to a socket buffer
1469  * nla_put_le32 - Add a __le32 netlink attribute to a socket buffer
1482  * nla_put_u64_64bit - Add a u64 netlink attribute to a skb and align it
1497  * nla_put_be64 - Add a __be64 netlink attribute to a socket buffer and align it
1528  * nla_put_le64 - Add a __le64 netlink attribute to a socket buffer and align it
1543  * nla_put_s8 - Add a s8 netlink attribute to a socket buffer
1556  * nla_put_s16 - Add a s16 netlink attribute to a socket buffer
1569  * nla_put_s32 - Add a s32 netlink attribute to a socket buffer
1582  * nla_put_s64 - Add a s64 netlink attribute to a socket buffer and align it
1613  * nla_put_string - Add a string netlink attribute to a socket buffer
1625  * nla_put_flag - Add a flag netlink attribute to a socket buffer
1635  * nla_put_msecs - Add a msecs netlink attribute to a skb and align it
1650  * nla_put_in_addr - Add an IPv4 address netlink attribute to a socket
1665  * nla_put_in6_addr - Add an IPv6 address netlink attribute to a socket
1678  * nla_put_bitfield32 - Add a bitfield32 netlink attribute to a socket buffer
1694  * @nla: u32 netlink attribute
1703  * @nla: u32 netlink attribute, may be %NULL
1717  * @nla: __be32 netlink attribute
1726  * @nla: __be32 netlink attribute, may be %NULL
1741  * @nla: __le32 netlink attribute
1750  * @nla: __le32 netlink attribute, may be %NULL
1765  * @nla: u16 netlink attribute
1774  * @nla: u16 netlink attribute, may be %NULL
1788  * @nla: __be16 netlink attribute
1797  * @nla: __be16 netlink attribute, may be %NULL
1812  * @nla: __le16 netlink attribute
1821  * @nla: __le16 netlink attribute, may be %NULL
1836  * @nla: u8 netlink attribute
1845  * @nla: u8 netlink attribute, may be %NULL
1859  * @nla: u64 netlink attribute
1872  * @nla: u64 netlink attribute, may be %NULL
1886  * @nla: uint netlink attribute
1897  * @nla: uint netlink attribute, may be %NULL
1911  * @nla: __be64 netlink attribute
1924  * @nla: __be64 netlink attribute, may be %NULL
1939  * @nla: __le64 netlink attribute
1948  * @nla: __le64 netlink attribute, may be %NULL
1963  * @nla: s32 netlink attribute
1972  * @nla: s32 netlink attribute, may be %NULL
1986  * @nla: s16 netlink attribute
1995  * @nla: s16 netlink attribute, may be %NULL
2009  * @nla: s8 netlink attribute
2018  * @nla: s8 netlink attribute, may be %NULL
2032  * @nla: s64 netlink attribute
2045  * @nla: s64 netlink attribute, may be %NULL
2059  * @nla: uint netlink attribute
2070  * @nla: sint netlink attribute, may be %NULL
2084  * @nla: flag netlink attribute
2093  * @nla: msecs netlink attribute
2106  * @nla: msecs netlink attribute, may be %NULL
2121  * @nla: IPv4 address netlink attribute
2130  * @nla: IPv4 address netlink attribute, may be %NULL
2145  * @nla: IPv6 address netlink attribute
2169  * @src: netlink attribute to duplicate from
2325  * Conditionally emit a padding netlink attribute in order to make