+++ /dev/null
-/*
- * netlink/socket.h Netlink Socket
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation version 2.1
- * of the License.
- *
- * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
- */
-
-#ifndef NETLINK_SOCKET_H_
-#define NETLINK_SOCKET_H_
-
-#include <netlink/types.h>
-#include <netlink/handlers.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#define NL_SOCK_BUFSIZE_SET (1<<0)
-#define NL_SOCK_PASSCRED (1<<1)
-#define NL_OWN_PORT (1<<2)
-#define NL_MSG_PEEK (1<<3)
-#define NL_NO_AUTO_ACK (1<<4)
-
-struct nl_cb;
-struct nl_sock
-{
- struct sockaddr_nl s_local;
- struct sockaddr_nl s_peer;
- int s_fd;
- int s_proto;
- unsigned int s_seq_next;
- unsigned int s_seq_expect;
- int s_flags;
- struct nl_cb * s_cb;
-};
-
-
-extern struct nl_sock * nl_socket_alloc(void);
-extern struct nl_sock * nl_socket_alloc_cb(struct nl_cb *);
-extern void nl_socket_free(struct nl_sock *);
-
-extern void nl_socket_set_local_port(struct nl_sock *, uint32_t);
-
-extern int nl_socket_add_memberships(struct nl_sock *, int, ...);
-extern int nl_socket_drop_memberships(struct nl_sock *, int, ...);
-
-extern int nl_socket_set_buffer_size(struct nl_sock *, int, int);
-extern int nl_socket_set_passcred(struct nl_sock *, int);
-extern int nl_socket_recv_pktinfo(struct nl_sock *, int);
-
-extern void nl_socket_disable_seq_check(struct nl_sock *);
-
-extern int nl_socket_set_nonblocking(struct nl_sock *);
-
-/**
- * Use next sequence number
- * @arg sk Netlink socket.
- *
- * Uses the next available sequence number and increases the counter
- * by one for subsequent calls.
- *
- * @return Unique serial sequence number
- */
-static inline unsigned int nl_socket_use_seq(struct nl_sock *sk)
-{
- return sk->s_seq_next++;
-}
-
-/**
- * Disable automatic request for ACK
- * @arg sk Netlink socket.
- *
- * The default behaviour of a socket is to request an ACK for
- * each message sent to allow for the caller to synchronize to
- * the completion of the netlink operation. This function
- * disables this behaviour and will result in requests being
- * sent which will not have the NLM_F_ACK flag set automatically.
- * However, it is still possible for the caller to set the
- * NLM_F_ACK flag explicitely.
- */
-static inline void nl_socket_disable_auto_ack(struct nl_sock *sk)
-{
- sk->s_flags |= NL_NO_AUTO_ACK;
-}
-
-/**
- * Enable automatic request for ACK (default)
- * @arg sk Netlink socket.
- * @see nl_socket_disable_auto_ack
- */
-static inline void nl_socket_enable_auto_ack(struct nl_sock *sk)
-{
- sk->s_flags &= ~NL_NO_AUTO_ACK;
-}
-
-/**
- * @name Source Idenficiation
- * @{
- */
-
-static inline uint32_t nl_socket_get_local_port(struct nl_sock *sk)
-{
- return sk->s_local.nl_pid;
-}
-
-/**
- * Join multicast groups (deprecated)
- * @arg sk Netlink socket.
- * @arg groups Bitmask of groups to join.
- *
- * This function defines the old way of joining multicast group which
- * has to be done prior to calling nl_connect(). It works on any kernel
- * version but is very limited as only 32 groups can be joined.
- */
-static inline void nl_join_groups(struct nl_sock *sk, int groups)
-{
- sk->s_local.nl_groups |= groups;
-}
-
-/**
- * @name Peer Identfication
- * @{
- */
-
-static inline uint32_t nl_socket_get_peer_port(struct nl_sock *sk)
-{
- return sk->s_peer.nl_pid;
-}
-
-static inline void nl_socket_set_peer_port(struct nl_sock *sk, uint32_t port)
-{
- sk->s_peer.nl_pid = port;
-}
-
-/** @} */
-
-/**
- * @name File Descriptor
- * @{
- */
-
-static inline int nl_socket_get_fd(struct nl_sock *sk)
-{
- return sk->s_fd;
-}
-
-/**
- * Enable use of MSG_PEEK when reading from socket
- * @arg sk Netlink socket.
- */
-static inline void nl_socket_enable_msg_peek(struct nl_sock *sk)
-{
- sk->s_flags |= NL_MSG_PEEK;
-}
-
-/**
- * Disable use of MSG_PEEK when reading from socket
- * @arg sk Netlink socket.
- */
-static inline void nl_socket_disable_msg_peek(struct nl_sock *sk)
-{
- sk->s_flags &= ~NL_MSG_PEEK;
-}
-
-/**
- * @name Callback Handler
- * @{
- */
-
-static inline struct nl_cb *nl_socket_get_cb(struct nl_sock *sk)
-{
- return nl_cb_get(sk->s_cb);
-}
-
-static inline void nl_socket_set_cb(struct nl_sock *sk, struct nl_cb *cb)
-{
- nl_cb_put(sk->s_cb);
- sk->s_cb = nl_cb_get(cb);
-}
-
-/**
- * Modify the callback handler associated to the socket
- * @arg sk Netlink socket.
- * @arg type which type callback to set
- * @arg kind kind of callback
- * @arg func callback function
- * @arg arg argument to be passwd to callback function
- *
- * @see nl_cb_set
- */
-static inline int nl_socket_modify_cb(struct nl_sock *sk, enum nl_cb_type type,
- enum nl_cb_kind kind, nl_recvmsg_msg_cb_t func,
- void *arg)
-{
- return nl_cb_set(sk->s_cb, type, kind, func, arg);
-}
-
-/** @} */
-
-static inline int nl_socket_add_membership(struct nl_sock *sk, int group)
-{
- return nl_socket_add_memberships(sk, group, 0);
-}
-
-
-static inline int nl_socket_drop_membership(struct nl_sock *sk, int group)
-{
- return nl_socket_drop_memberships(sk, group, 0);
-}
-
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
projects / openwrt / svn-archive / archive.git / blobdiff