arch/all-unix/devs/networks/tap/tap.h

   1 /*
   2  * tap - TUN/TAP network driver for AROS
   3  * Copyright (c) 2007 Robert Norris. All rights reserved.
   4  * Copyright (c) 2010-2011 The AROS Development Team. All rights reserved.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the same terms as AROS itself.
   8  */
   9
  10 #ifndef _TAP_DEVICE_H
  11 #define _TAP_DEVICE_H 1
  12
  13 #include <aros/debug.h>
  14 #include <exec/types.h>
  15 #include <exec/libraries.h>
  16 #include <exec/semaphores.h>
  17 #include <exec/devices.h>
  18 #include <exec/interrupts.h>
  19 #include <exec/errors.h>
  20 #include <exec/lists.h>
  21 #include <devices/sana2.h>
  22 #include <devices/sana2specialstats.h>
  23 #include <devices/newstyle.h>
  24 #include <hidd/unixio.h>
  25 #include <oop/oop.h>
  26 #include <proto/exec.h>
  27 #include <proto/utility.h>
  28 #include <aros/libcall.h>
  29 #include <aros/symbolsets.h>
  30
  31 #define timeval sys_timeval
  32
  33 /* avoid conflicts between our __unused define and the ones that might come in
  34    via fcntl.h */
  35 #undef __unused
  36 #include <fcntl.h>
  37 #include <sys/ioctl.h>
  38
  39 #include <netinet/in.h>
  40 #include <linux/if.h>
  41 #include <linux/if_tun.h>
  42 #include <linux/if_ether.h>
  43
  44 #include <poll.h>
  45 #include <stdio.h>
  46
  47 #undef timeval
  48
  49 #include LC_LIBDEFS_FILE
  50
  51 /* explicitly prototype rand() so we don't have pull in stdlib.h */
  52 extern int rand(void);
  53
  54 /* NewStyle device support */
  55 #define NEWSTYLE_DEVICE 1
  56
  57 #define MAX_TAP_UNITS (4)
  58
  59 #define TAP_DEV_NODE "/dev/net/tun"
  60
  61 #define TAP_IFACE_FORMAT "aros%ld"
  62 #define TAP_TASK_FORMAT "TAP IO: unit %d"
  63
  64
  65 struct tap_opener {
  66     struct MinNode              node;
  67
  68     struct MsgPort              read_pending;
  69
  70     BOOL                        (*rx)(APTR, APTR, ULONG);
  71     BOOL                        (*tx)(APTR, APTR, ULONG);
  72
  73     struct Hook                 *filter;
  74 };
  75
  76 struct tap_tracker {
  77     struct MinNode              node;
  78     ULONG                       refcount;
  79     ULONG                       packet_type;
  80     struct Sana2PacketTypeStats stats;
  81 };
  82
  83 struct tap_unit
  84 {
  85     ULONG                       num;
  86     ULONG                       refcount;
  87
  88     int                         fd;
  89
  90     char                        name[IFNAMSIZ];
  91     unsigned char               hwaddr[ETH_ALEN];
  92
  93     struct Sana2DeviceQuery     info;
  94
  95     ULONG                       flags;
  96
  97     struct MinList              openers;
  98
  99     struct MinList              trackers;
 100     struct Sana2DeviceStats     stats;
 101
 102     struct MsgPort              *iosyncport;
 103     struct Task                 *iotask;
 104
 105     LONG                        abort_signal;
 106     LONG                        io_signal;
 107
 108     struct MsgPort              *write_queue;
 109
 110     struct uioInterrupt         irq;
 111 };
 112
 113 struct tap_base
 114 {
 115     struct Device           tap_device;
 116     struct tap_unit         unit[MAX_TAP_UNITS];
 117     OOP_AttrBase            UnixIOAttrBase;
 118     OOP_Object             *unixio;
 119 };
 120
 121 #undef HiddUnixIOAttrBase
 122 #define HiddUnixIOAttrBase LIBBASE->UnixIOAttrBase
 123
 124 /* unit flags */
 125 #define tu_CONFIGURED   (1<<0)
 126 #define tu_ONLINE       (1<<1)
 127
 128
 129 extern void tap_handle_request(struct IOSana2Req *req);
 130
 131 extern void tap_hexdump(unsigned char *buf, int bufsz);
 132
 133 extern void tap_iotask(struct tap_base *TAPBase, struct tap_unit *unit);
 134
 135 #endif