1 /* Copyright (C) 2004, 2005 Free Software Foundation, Inc. 2 This file is part of the GNU C Library. 3 4 The GNU C Library is free software; you can redistribute it and/or 5 modify it under the terms of the GNU Lesser General Public 6 License as published by the Free Software Foundation; either 7 version 2.1 of the License, or (at your option) any later version. 8 9 The GNU C Library is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 Lesser General Public License for more details. 13 14 You should have received a copy of the GNU Lesser General Public 15 License along with the GNU C Library; if not, see 16 <http://www.gnu.org/licenses/>. */ 17 18 #ifndef _NETLINKACCESS_H 19 #define _NETLINKACCESS_H 1 20 21 #include <features.h> 22 #include <stdint.h> 23 #include <unistd.h> 24 #if defined __ASSUME_NETLINK_SUPPORT || defined __UCLIBC_USE_NETLINK__ 25 #include <asm/types.h> 26 #include <linux/rtnetlink.h> 27 #include <linux/netlink.h> 28 29 struct netlink_res 30 { 31 struct netlink_res *next; 32 struct nlmsghdr *nlh; 33 size_t size; /* Size of response. */ 34 uint32_t seq; /* sequential number we used. */ 35 }; 36 37 38 struct netlink_handle 39 { 40 int fd; /* Netlink file descriptor. */ 41 pid_t pid; /* Process ID. */ 42 uint32_t seq; /* The sequence number we use currently. */ 43 struct netlink_res *nlm_list; /* Pointer to list of responses. */ 44 struct netlink_res *end_ptr; /* For faster append of new entries. */ 45 }; 46 47 48 #ifndef __ASSUME_NETLINK_SUPPORT 49 #define __ASSUME_NETLINK_SUPPORT 1 50 #endif 51 52 extern int __netlink_open (struct netlink_handle *h) attribute_hidden; 53 extern void __netlink_close (struct netlink_handle *h) attribute_hidden; 54 extern void __netlink_free_handle (struct netlink_handle *h) attribute_hidden; 55 extern int __netlink_request (struct netlink_handle *h, int type) attribute_hidden; 56 57 #else 58 #define __ASSUME_NETLINK_SUPPORT 0 59 #endif 60 61 #endif /* _NETLINKACCESS_H */ 62