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
153  *   nla_next(nla, remaining)		get next netlink attribute
474  * struct nl_info - netlink source information
475  * @nlh: Netlink message header of original request
477  * @portid: Netlink PORTID of requesting application
478  * @skip_notify: Skip netlink notifications to user space
490  * enum netlink_validation - netlink message/attribute validation levels
562  * Netlink Messages
566  * nlmsg_msg_size - length of netlink message not including padding
575  * nlmsg_total_size - length of netlink message including padding
594  * @nlh: netlink message header
603  * @nlh: netlink message header
612  * @nlh: netlink message header
624  * @nlh: netlink message header
633  * nlmsg_ok - check if the netlink message fits into the remaining bytes
634  * @nlh: netlink message header
645  * nlmsg_next - next netlink message in message stream
646  * @nlh: netlink message header
649  * Returns the next netlink message in the message stream and
739  * __nlmsg_parse - parse attributes of a netlink message
740  * @nlh: netlink message header
767  * nlmsg_parse - parse attributes of a netlink message
768  * @nlh: netlink message header
787  * nlmsg_parse_deprecated - parse attributes of a netlink message
788  * @nlh: netlink message header
807  * nlmsg_parse_deprecated_strict - parse attributes of a netlink message
808  * @nlh: netlink message header
828  * nlmsg_find_attr - find a specific attribute in a netlink message
829  * @nlh: netlink message header
888  * nlmsg_validate_deprecated - validate a netlink message including attributes
912  * @nlh: netlink message header
922  * nlmsg_seq - return the seq number of netlink message
923  * @nlh: netlink message header
925  * Returns 0 if netlink message is NULL
935  * @nlh: netlink message header
944  * nlmsg_put - Add a new netlink message to an skb
946  * @portid: netlink PORTID of requesting application
986  * nlmsg_put_answer - Add a new callback based netlink message to an skb
988  * @cb: netlink callback
1006  * nlmsg_new - Allocate a new netlink message
1019  * nlmsg_new_large - Allocate a new netlink message with non-contiguous
1033  * nlmsg_end - Finalize a netlink message
1035  * @nlh: netlink message header
1037  * Corrects the netlink message header to include the appended
1047  * nlmsg_get_pos - return current position in netlink message
1073  * nlmsg_cancel - Cancel construction of a netlink message
1075  * @nlh: netlink message header
1077  * Removes the complete netlink message including all
1086  * nlmsg_free - drop a netlink message
1087  * @skb: socket buffer of netlink message
1095  * nlmsg_consume - free a netlink message
1096  * @skb: socket buffer of netlink message
1104  * nlmsg_multicast_filtered - multicast a netlink message with filter function
1105  * @sk: netlink socket to spread messages to
1106  * @skb: netlink message as socket buffer
1107  * @portid: own netlink portid to avoid sending to yourself
1134  * nlmsg_multicast - multicast a netlink message
1135  * @sk: netlink socket to spread messages to
1136  * @skb: netlink message as socket buffer
1137  * @portid: own netlink portid to avoid sending to yourself
1149  * nlmsg_unicast - unicast a netlink message
1150  * @sk: netlink socket to spread message to
1151  * @skb: netlink message as socket buffer
1152  * @portid: netlink portid of the destination socket
1179  * @cb: netlink callback structure that stores the sequence number
1180  * @nlh: netlink message header to write the flag to
1183  * and if it did, advertises it in the netlink message header.
1202  * Netlink Attributes
1234  * @nla: netlink attribute
1243  * @nla: netlink attribute
1252  * @nla: netlink attribute
1260  * nla_ok - check if the netlink attribute fits into the remaining bytes
1261  * @nla: netlink attribute
1272  * nla_next - next netlink attribute in attribute stream
1273  * @nla: netlink attribute
1276  * Returns the next netlink attribute in the attribute stream and
1344  * nla_put_u8 - Add a u8 netlink attribute to a socket buffer
1358  * nla_put_u16 - Add a u16 netlink attribute to a socket buffer
1371  * nla_put_be16 - Add a __be16 netlink attribute to a socket buffer
1384  * nla_put_net16 - Add 16-bit network byte order netlink attribute to a socket buffer
1397  * nla_put_le16 - Add a __le16 netlink attribute to a socket buffer
1410  * nla_put_u32 - Add a u32 netlink attribute to a socket buffer
1439  * nla_put_be32 - Add a __be32 netlink attribute to a socket buffer
1452  * nla_put_net32 - Add 32-bit network byte order netlink attribute to a socket buffer
1465  * nla_put_le32 - Add a __le32 netlink attribute to a socket buffer
1478  * nla_put_u64_64bit - Add a u64 netlink attribute to a skb and align it
1493  * nla_put_be64 - Add a __be64 netlink attribute to a socket buffer and align it
1524  * nla_put_le64 - Add a __le64 netlink attribute to a socket buffer and align it
1539  * nla_put_s8 - Add a s8 netlink attribute to a socket buffer
1552  * nla_put_s16 - Add a s16 netlink attribute to a socket buffer
1565  * nla_put_s32 - Add a s32 netlink attribute to a socket buffer
1578  * nla_put_s64 - Add a s64 netlink attribute to a socket buffer and align it
1609  * nla_put_string - Add a string netlink attribute to a socket buffer
1621  * nla_put_flag - Add a flag netlink attribute to a socket buffer
1631  * nla_put_msecs - Add a msecs netlink attribute to a skb and align it
1646  * nla_put_in_addr - Add an IPv4 address netlink attribute to a socket
1661  * nla_put_in6_addr - Add an IPv6 address netlink attribute to a socket
1674  * nla_put_bitfield32 - Add a bitfield32 netlink attribute to a socket buffer
1690  * @nla: u32 netlink attribute
1699  * @nla: __be32 netlink attribute
1708  * @nla: __le32 netlink attribute
1717  * @nla: u16 netlink attribute
1726  * @nla: __be16 netlink attribute
1735  * @nla: __le16 netlink attribute
1744  * @nla: u8 netlink attribute
1753  * @nla: u64 netlink attribute
1766  * @nla: uint netlink attribute
1777  * @nla: __be64 netlink attribute
1790  * @nla: __le64 netlink attribute
1799  * @nla: s32 netlink attribute
1808  * @nla: s16 netlink attribute
1817  * @nla: s8 netlink attribute
1826  * @nla: s64 netlink attribute
1839  * @nla: uint netlink attribute
1850  * @nla: flag netlink attribute
1859  * @nla: msecs netlink attribute
1872  * @nla: IPv4 address netlink attribute
1881  * @nla: IPv6 address netlink attribute
1905  * @src: netlink attribute to duplicate from
2047  * Conditionally emit a padding netlink attribute in order to make