headers/posix/net/if.h

   1 /*
   2  * Copyright 2006-2012 Haiku, Inc. All Rights Reserved.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef _NET_IF_H
   6 #define _NET_IF_H
   7
   8
   9 #include <net/route.h>
  10 #include <sys/socket.h>
  11
  12
  13 #define IF_NAMESIZE     32
  14
  15 /* BSD specific/proprietary part */
  16
  17 #define IFNAMSIZ IF_NAMESIZE
  18
  19 struct ifreq_stream_stats {
  20         uint32_t        packets;
  21         uint32_t        errors;
  22         uint64_t        bytes;
  23         uint32_t        multicast_packets;
  24         uint32_t        dropped;
  25 };
  26
  27 struct ifreq_stats {
  28         struct ifreq_stream_stats receive;
  29         struct ifreq_stream_stats send;
  30         uint32_t        collisions;
  31 };
  32
  33 struct ifreq {
  34         char                    ifr_name[IF_NAMESIZE];
  35         union {
  36                 struct sockaddr ifr_addr;
  37                 struct sockaddr ifr_dstaddr;
  38                 struct sockaddr ifr_broadaddr;
  39                 struct sockaddr ifr_mask;
  40                 struct ifreq_stats ifr_stats;
  41                 struct route_entry ifr_route;
  42                 int                     ifr_flags;
  43                 int                     ifr_index;
  44                 int                     ifr_metric;
  45                 int                     ifr_mtu;
  46                 int                     ifr_media;
  47                 int                     ifr_type;
  48                 int                     ifr_reqcap;
  49                 int                     ifr_count;
  50                 uint8_t*        ifr_data;
  51         };
  52 };
  53
  54 /* used with SIOC_IF_ALIAS_ADD, SIOC_IF_ALIAS_GET, SIOC_ALIAS_SET */
  55 struct ifaliasreq {
  56         char                    ifra_name[IF_NAMESIZE];
  57         int                             ifra_index;
  58         struct sockaddr_storage ifra_addr;
  59         union {
  60                 struct sockaddr_storage ifra_broadaddr;
  61                 struct sockaddr_storage ifra_destination;
  62         };
  63         struct sockaddr_storage ifra_mask;
  64         uint32_t                ifra_flags;
  65 };
  66
  67 /* used with SIOCGIFMEDIA */
  68 struct ifmediareq {
  69         char                    ifm_name[IF_NAMESIZE];
  70         int                             ifm_current;
  71         int                             ifm_mask;
  72         int                             ifm_status;
  73         int                             ifm_active;
  74         int                             ifm_count;
  75         int*                    ifm_ulist;
  76 };
  77
  78
  79 /* interface flags */
  80 #define IFF_UP                          0x0001
  81 #define IFF_BROADCAST           0x0002  /* valid broadcast address */
  82 #define IFF_LOOPBACK            0x0008
  83 #define IFF_POINTOPOINT         0x0010  /* point-to-point link */
  84 #define IFF_NOARP                       0x0040  /* no address resolution */
  85 #define IFF_AUTOUP                      0x0080  /* auto dial */
  86 #define IFF_PROMISC                     0x0100  /* receive all packets */
  87 #define IFF_ALLMULTI            0x0200  /* receive all multicast packets */
  88 #define IFF_SIMPLEX                     0x0800  /* doesn't receive own transmissions */
  89 #define IFF_LINK                        0x1000  /* has link */
  90 #define IFF_AUTO_CONFIGURED     0x2000
  91 #define IFF_CONFIGURING         0x4000
  92 #define IFF_MULTICAST           0x8000  /* supports multicast */
  93
  94 /* interface alias flags */
  95 #define IFAF_AUTO_CONFIGURED    0x0001  /* has been automatically configured */
  96 #define IFAF_CONFIGURING                0x0002  /* auto configuration in progress */
  97
  98
  99 /* used with SIOCGIFCOUNT, and SIOCGIFCONF */
 100 struct ifconf {
 101         int                             ifc_len;        /* size of buffer */
 102         union {
 103                 void*           ifc_buf;
 104                 struct ifreq* ifc_req;
 105                 int                     ifc_value;
 106         };
 107 };
 108
 109 /* Macro that returns the size of a single address within a SIOCGIFCONF buffer;
 110    it looks like this because of compatibility with other platforms. */
 111 #define _SIZEOF_ADDR_IFREQ(request) \
 112         (IF_NAMESIZE + (request).ifr_addr.sa_len > (int)sizeof(struct ifreq) \
 113                 ? IF_NAMESIZE + (request).ifr_addr.sa_len : sizeof(struct ifreq))
 114
 115
 116 /* POSIX definitions follow */
 117
 118 struct if_nameindex {
 119         unsigned                if_index;       /* positive interface index */
 120         char*                   if_name;        /* interface name, ie. "loopback" */
 121 };
 122
 123
 124 #ifdef __cplusplus
 125 extern "C" {
 126 #endif
 127
 128 unsigned if_nametoindex(const char* name);
 129 char* if_indextoname(unsigned interfaceIndex, char* nameBuffer);
 130 struct if_nameindex* if_nameindex(void);
 131 void if_freenameindex(struct if_nameindex* interfaceArray);
 132
 133 #ifdef __cplusplus
 134 }
 135 #endif
 136
 137
 138 #endif  /* _NET_IF_H */