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_SPACE(len) RTA_ALIGN(RTA_LENGTH(len)) 72 #define RTA_DATA(rta) ((void *) (((char *) (rta)) + RTA_LENGTH(0))) 73 #define RTA_PAYLOAD(rta) ((int) ((rta)->rta_len) - RTA_LENGTH(0)) 74 75 76 struct sockaddr_nl 77 { 78 sa_family_t nl_family; 79 unsigned short nl_pad; 80 u32 nl_pid; 81 u32 nl_groups; 82 }; 83 84 struct nlmsghdr 85 { 86 u32 nlmsg_len; 87 u16 nlmsg_type; 88 u16 nlmsg_flags; 89 u32 nlmsg_seq; 90 u32 nlmsg_pid; 91 }; 92 93 struct ifinfomsg 94 { 95 unsigned char ifi_family; 96 unsigned char __ifi_pad; 97 unsigned short ifi_type; 98 int ifi_index; 99 unsigned ifi_flags; 100 unsigned ifi_change; 101 }; 102 103 struct rtattr 104 { 105 unsigned short rta_len; 106 unsigned short rta_type; 107 }; 108 109 #endif /* PRIV_NETLINK_H */ 110