src/drivers/priv_netlink.h

   1 /*
   2  * wpa_supplicant - Private copy of Linux netlink/rtnetlink definitions.
   3  * Copyright (c) 2003-2005, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #ifndef PRIV_NETLINK_H
  16 #define PRIV_NETLINK_H
  17
  18 /*
  19  * This should be replaced with user space header once one is available with C
  20  * library, etc..
  21  */
  22
  23 #ifndef IFF_LOWER_UP
  24 #define IFF_LOWER_UP   0x10000         /* driver signals L1 up         */
  25 #endif
  26 #ifndef IFF_DORMANT
  27 #define IFF_DORMANT    0x20000         /* driver signals dormant       */
  28 #endif
  29
  30 #ifndef IFLA_IFNAME
  31 #define IFLA_IFNAME 3
  32 #endif
  33 #ifndef IFLA_WIRELESS
  34 #define IFLA_WIRELESS 11
  35 #endif
  36 #ifndef IFLA_OPERSTATE
  37 #define IFLA_OPERSTATE 16
  38 #endif
  39 #ifndef IFLA_LINKMODE
  40 #define IFLA_LINKMODE 17
  41 #define IF_OPER_DORMANT 5
  42 #define IF_OPER_UP 6
  43 #endif
  44
  45 #define NLM_F_REQUEST 1
  46
  47 #define NETLINK_ROUTE 0
  48 #define RTMGRP_LINK 1
  49 #define RTM_BASE 0x10
  50 #define RTM_NEWLINK (RTM_BASE + 0)
  51 #define RTM_DELLINK (RTM_BASE + 1)
  52 #define RTM_SETLINK (RTM_BASE + 3)
  53
  54 #define NLMSG_ALIGNTO 4
  55 #define NLMSG_ALIGN(len) (((len) + NLMSG_ALIGNTO - 1) & ~(NLMSG_ALIGNTO - 1))
  56 #define NLMSG_HDRLEN ((int) NLMSG_ALIGN(sizeof(struct nlmsghdr)))
  57 #define NLMSG_LENGTH(len) ((len) + NLMSG_ALIGN(sizeof(struct nlmsghdr)))
  58 #define NLMSG_SPACE(len) NLMSG_ALIGN(NLMSG_LENGTH(len))
  59 #define NLMSG_DATA(nlh) ((void*) (((char*) nlh) + NLMSG_LENGTH(0)))
  60 #define NLMSG_NEXT(nlh,len) ((len) -= NLMSG_ALIGN((nlh)->nlmsg_len), \
  61                              (struct nlmsghdr *) \
  62                              (((char *)(nlh)) + NLMSG_ALIGN((nlh)->nlmsg_len)))
  63 #define NLMSG_OK(nlh,len) ((len) >= (int) sizeof(struct nlmsghdr) && \
  64                            (nlh)->nlmsg_len >= sizeof(struct nlmsghdr) && \
  65                            (int) (nlh)->nlmsg_len <= (len))
  66 #define NLMSG_PAYLOAD(nlh,len) ((nlh)->nlmsg_len - NLMSG_SPACE((len)))
  67
  68 #define RTA_ALIGNTO 4
  69 #define RTA_ALIGN(len) (((len) + RTA_ALIGNTO - 1) & ~(RTA_ALIGNTO - 1))
  70 #define RTA_OK(rta,len) \
  71 ((len) > 0 && (rta)->rta_len >= sizeof(struct rtattr) && \
  72 (rta)->rta_len <= (len))
  73 #define RTA_NEXT(rta,attrlen) \
  74 ((attrlen) -= RTA_ALIGN((rta)->rta_len), \
  75 (struct rtattr *) (((char *)(rta)) + RTA_ALIGN((rta)->rta_len)))
  76 #define RTA_LENGTH(len) (RTA_ALIGN(sizeof(struct rtattr)) + (len))
  77 #define RTA_DATA(rta) ((void *) (((char *) (rta)) + RTA_LENGTH(0)))
  78
  79
  80 struct sockaddr_nl
  81 {
  82         sa_family_t nl_family;
  83         unsigned short nl_pad;
  84         u32 nl_pid;
  85         u32 nl_groups;
  86 };
  87
  88 struct nlmsghdr
  89 {
  90         u32 nlmsg_len;
  91         u16 nlmsg_type;
  92         u16 nlmsg_flags;
  93         u32 nlmsg_seq;
  94         u32 nlmsg_pid;
  95 };
  96
  97 struct ifinfomsg
  98 {
  99         unsigned char ifi_family;
 100         unsigned char __ifi_pad;
 101         unsigned short ifi_type;
 102         int ifi_index;
 103         unsigned ifi_flags;
 104         unsigned ifi_change;
 105 };
 106
 107 struct rtattr
 108 {
 109         unsigned short rta_len;
 110         unsigned short rta_type;
 111 };
 112
 113 #endif /* PRIV_NETLINK_H */