BadVPN – Blame information for rev 1
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1 | office | 1 | /** |
2 | * @file ncdinterfacemonitor_test.c |
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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 | #include <string.h> |
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31 | #include <inttypes.h> |
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32 | #include <stdio.h> |
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33 | |||
34 | #include <misc/get_iface_info.h> |
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35 | #include <misc/ipaddr6.h> |
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36 | #include <misc/debug.h> |
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37 | #include <base/BLog.h> |
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38 | #include <system/BTime.h> |
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39 | #include <system/BReactor.h> |
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40 | #include <system/BSignal.h> |
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41 | #include <ncd/extra/NCDInterfaceMonitor.h> |
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42 | |||
43 | BReactor reactor; |
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44 | NCDInterfaceMonitor monitor; |
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45 | |||
46 | static void signal_handler (void *user); |
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47 | static void monitor_handler (void *unused, struct NCDInterfaceMonitor_event event); |
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48 | static void monitor_handler_error (void *unused); |
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49 | |||
50 | int main (int argc, char **argv) |
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51 | { |
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52 | int ret = 1; |
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53 | |||
54 | if (argc != 2) { |
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55 | fprintf(stderr, "Usage: %s <interface>\n", (argc > 0 ? argv[0] : "")); |
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56 | goto fail0; |
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57 | } |
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58 | |||
59 | int ifindex; |
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60 | if (!badvpn_get_iface_info(argv[1], NULL, NULL, &ifindex)) { |
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61 | DEBUG("get_iface_info failed"); |
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62 | goto fail0; |
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63 | } |
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64 | |||
65 | BTime_Init(); |
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66 | |||
67 | BLog_InitStdout(); |
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68 | |||
69 | if (!BNetwork_GlobalInit()) { |
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70 | DEBUG("BNetwork_GlobalInit failed"); |
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71 | goto fail1; |
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72 | } |
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73 | |||
74 | if (!BReactor_Init(&reactor)) { |
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75 | DEBUG("BReactor_Init failed"); |
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76 | goto fail1; |
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77 | } |
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78 | |||
79 | if (!BSignal_Init(&reactor, signal_handler, NULL)) { |
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80 | DEBUG("BSignal_Init failed"); |
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81 | goto fail2; |
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82 | } |
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83 | |||
84 | int watch_flags = NCDIFMONITOR_WATCH_LINK|NCDIFMONITOR_WATCH_IPV4_ADDR|NCDIFMONITOR_WATCH_IPV6_ADDR; |
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85 | |||
86 | if (!NCDInterfaceMonitor_Init(&monitor, ifindex, watch_flags, &reactor, NULL, monitor_handler, monitor_handler_error)) { |
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87 | DEBUG("NCDInterfaceMonitor_Init failed"); |
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88 | goto fail3; |
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89 | } |
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90 | |||
91 | ret = BReactor_Exec(&reactor); |
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92 | |||
93 | NCDInterfaceMonitor_Free(&monitor); |
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94 | fail3: |
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95 | BSignal_Finish(); |
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96 | fail2: |
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97 | BReactor_Free(&reactor); |
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98 | fail1: |
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99 | BLog_Free(); |
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100 | fail0: |
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101 | DebugObjectGlobal_Finish(); |
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102 | |||
103 | return ret; |
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104 | } |
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105 | |||
106 | void signal_handler (void *user) |
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107 | { |
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108 | DEBUG("termination requested"); |
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109 | |||
110 | BReactor_Quit(&reactor, 1); |
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111 | } |
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112 | |||
113 | void monitor_handler (void *unused, struct NCDInterfaceMonitor_event event) |
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114 | { |
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115 | switch (event.event) { |
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116 | case NCDIFMONITOR_EVENT_LINK_UP: |
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117 | case NCDIFMONITOR_EVENT_LINK_DOWN: { |
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118 | const char *type = (event.event == NCDIFMONITOR_EVENT_LINK_UP) ? "up" : "down"; |
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119 | printf("link %s\n", type); |
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120 | } break; |
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121 | |||
122 | case NCDIFMONITOR_EVENT_IPV4_ADDR_ADDED: |
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123 | case NCDIFMONITOR_EVENT_IPV4_ADDR_REMOVED: { |
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124 | const char *type = (event.event == NCDIFMONITOR_EVENT_IPV4_ADDR_ADDED) ? "added" : "removed"; |
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125 | uint8_t *addr = (uint8_t *)&event.u.ipv4_addr.addr; |
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126 | printf("ipv4 addr %s %d.%d.%d.%d/%d\n", type, (int)addr[0], (int)addr[1], (int)addr[2], (int)addr[3], event.u.ipv4_addr.addr.prefix); |
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127 | } break; |
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128 | |||
129 | case NCDIFMONITOR_EVENT_IPV6_ADDR_ADDED: |
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130 | case NCDIFMONITOR_EVENT_IPV6_ADDR_REMOVED: { |
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131 | const char *type = (event.event == NCDIFMONITOR_EVENT_IPV6_ADDR_ADDED) ? "added" : "removed"; |
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132 | |||
133 | char str[IPADDR6_PRINT_MAX]; |
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134 | ipaddr6_print_addr(event.u.ipv6_addr.addr.addr, str); |
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135 | |||
136 | int dynamic = !!(event.u.ipv6_addr.addr_flags & NCDIFMONITOR_ADDR_FLAG_DYNAMIC); |
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137 | |||
138 | printf("ipv6 addr %s %s/%d scope=%"PRIu8" dynamic=%d\n", type, str, event.u.ipv6_addr.addr.prefix, event.u.ipv6_addr.scope, dynamic); |
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139 | } break; |
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140 | |||
141 | default: ASSERT(0); |
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142 | } |
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143 | } |
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144 | |||
145 | void monitor_handler_error (void *unused) |
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146 | { |
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147 | DEBUG("monitor error"); |
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148 | |||
149 | BReactor_Quit(&reactor, 1); |
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150 | } |