BadVPN – Blame information for rev 1
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1 | office | 1 | /** |
2 | * @file BArpProbe.h |
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3 | * @author Ambroz Bizjak <ambrop7@gmail.com> |
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4 | * |
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5 | * @section LICENSE |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions are met: |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * 2. Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * 3. Neither the name of the author nor the |
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15 | * names of its contributors may be used to endorse or promote products |
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16 | * derived from this software without specific prior written permission. |
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17 | * |
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18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
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19 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
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20 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
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21 | * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
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22 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
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23 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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24 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
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25 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
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27 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | */ |
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29 | |||
30 | #ifndef BADVPN_BARPPROBE_H |
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31 | #define BADVPN_BARPPROBE_H |
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32 | |||
33 | #include <stdint.h> |
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34 | |||
35 | #include <misc/debug.h> |
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36 | #include <misc/debugerror.h> |
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37 | #include <misc/arp_proto.h> |
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38 | #include <misc/ethernet_proto.h> |
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39 | #include <base/DebugObject.h> |
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40 | #include <system/BDatagram.h> |
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41 | #include <system/BReactor.h> |
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42 | |||
43 | #define BARPPROBE_INITIAL_WAITRECV 1000 |
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44 | #define BARPPROBE_INITIAL_NUM_ATTEMPTS 6 |
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45 | #define BARPPROBE_NOEXIST_WAITRECV 15000 |
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46 | #define BARPPROBE_EXIST_WAITSEND 15000 |
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47 | #define BARPPROBE_EXIST_WAITRECV 10000 |
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48 | #define BARPPROBE_EXIST_NUM_NOREPLY 2 |
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49 | #define BARPPROBE_EXIST_PANIC_WAITRECV 1000 |
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50 | #define BARPPROBE_EXIST_PANIC_NUM_NOREPLY 6 |
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51 | |||
52 | #define BARPPROBE_EVENT_EXIST 1 |
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53 | #define BARPPROBE_EVENT_NOEXIST 2 |
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54 | #define BARPPROBE_EVENT_ERROR 3 |
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55 | |||
56 | typedef void (*BArpProbe_handler) (void *user, int event); |
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57 | |||
58 | typedef struct { |
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59 | uint32_t addr; |
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60 | BReactor *reactor; |
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61 | void *user; |
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62 | BArpProbe_handler handler; |
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63 | BDatagram dgram; |
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64 | uint8_t if_mac[6]; |
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65 | PacketPassInterface *send_if; |
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66 | int send_sending; |
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67 | struct arp_packet send_packet; |
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68 | PacketRecvInterface *recv_if; |
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69 | struct arp_packet recv_packet; |
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70 | BTimer timer; |
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71 | int state; |
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72 | int num_missed; |
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73 | DebugError d_err; |
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74 | DebugObject d_obj; |
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75 | } BArpProbe; |
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76 | |||
77 | int BArpProbe_Init (BArpProbe *o, const char *ifname, uint32_t addr, BReactor *reactor, void *user, BArpProbe_handler handler) WARN_UNUSED; |
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78 | void BArpProbe_Free (BArpProbe *o); |
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79 | |||
80 | #endif |