contrib/hostapd-0.5.8/priv_netlink.h

   1 #ifndef PRIV_NETLINK_H
   2 #define PRIV_NETLINK_H
   3
   4 /* Private copy of needed Linux netlink/rtnetlink definitions.
   5  *
   6  * This should be replaced with user space header once one is available with C
   7  * library, etc..
   8  */
   9
  10 #ifndef IFLA_IFNAME
  11 #define IFLA_IFNAME 3
  12 #endif
  13 #ifndef IFLA_WIRELESS
  14 #define IFLA_WIRELESS 11
  15 #endif
  16
  17 #define NETLINK_ROUTE 0
  18 #define RTMGRP_LINK 1
  19 #define RTM_BASE 0x10
  20 #define RTM_NEWLINK (RTM_BASE + 0)
  21 #define RTM_DELLINK (RTM_BASE + 1)
  22
  23 #define NLMSG_ALIGNTO 4
  24 #define NLMSG_ALIGN(len) (((len) + NLMSG_ALIGNTO - 1) & ~(NLMSG_ALIGNTO - 1))
  25 #define NLMSG_LENGTH(len) ((len) + NLMSG_ALIGN(sizeof(struct nlmsghdr)))
  26 #define NLMSG_DATA(nlh) ((void*) (((char*) nlh) + NLMSG_LENGTH(0)))
  27
  28 #define RTA_ALIGNTO 4
  29 #define RTA_ALIGN(len) (((len) + RTA_ALIGNTO - 1) & ~(RTA_ALIGNTO - 1))
  30 #define RTA_OK(rta,len) \
  31 ((len) > 0 && (rta)->rta_len >= sizeof(struct rtattr) && \
  32 (rta)->rta_len <= (len))
  33 #define RTA_NEXT(rta,attrlen) \
  34 ((attrlen) -= RTA_ALIGN((rta)->rta_len), \
  35 (struct rtattr *) (((char *)(rta)) + RTA_ALIGN((rta)->rta_len)))
  36
  37
  38 struct sockaddr_nl
  39 {
  40         sa_family_t nl_family;
  41         unsigned short nl_pad;
  42         u32 nl_pid;
  43         u32 nl_groups;
  44 };
  45
  46 struct nlmsghdr
  47 {
  48         u32 nlmsg_len;
  49         u16 nlmsg_type;
  50         u16 nlmsg_flags;
  51         u32 nlmsg_seq;
  52         u32 nlmsg_pid;
  53 };
  54
  55 struct ifinfomsg
  56 {
  57         unsigned char ifi_family;
  58         unsigned char __ifi_pad;
  59         unsigned short ifi_type;
  60         int ifi_index;
  61         unsigned ifi_flags;
  62         unsigned ifi_change;
  63 };
  64
  65 struct rtattr
  66 {
  67         unsigned short rta_len;
  68         unsigned short rta_type;
  69 };
  70
  71 #endif /* PRIV_NETLINK_H */