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