[96b02b5] | 1 | /* |
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[a7cce8d] | 2 | * Copyright (C) 2020-2021 Soleta Networks <info@soleta.eu> |
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[96b02b5] | 3 | * |
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| 4 | * This program is free software: you can redistribute it and/or modify it under |
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| 5 | * the terms of the GNU Affero General Public License as published by the |
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[a7cce8d] | 6 | * Free Software Foundation; either version 3 of the License, or |
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| 7 | * (at your option) any later version. |
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[96b02b5] | 8 | */ |
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| 9 | #include <sys/types.h> |
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| 10 | #include <ifaddrs.h> |
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| 11 | #include <string.h> |
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| 12 | #include <netinet/in.h> |
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| 13 | #include <sys/socket.h> |
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| 14 | #include <syslog.h> |
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| 15 | #include <stddef.h> |
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| 16 | #include <sys/types.h> |
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| 17 | #include <sys/stat.h> |
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| 18 | #include <sys/types.h> |
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| 19 | #include <sys/socket.h> |
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| 20 | #include <fcntl.h> |
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| 21 | #include "wol.h" |
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[1f13855] | 22 | #include "rest.h" |
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[fe1ce97] | 23 | #include "cfg.h" |
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[96b02b5] | 24 | #include "ogAdmServer.h" |
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| 25 | |
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[060e31c] | 26 | int wol_socket_open(void) |
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| 27 | { |
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| 28 | unsigned int on = 1; |
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| 29 | int ret, s; |
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| 30 | |
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| 31 | s = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP); |
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| 32 | if (s < 0) { |
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| 33 | syslog(LOG_ERR, "cannot create socket for magic packet\n"); |
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| 34 | return -1; |
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| 35 | } |
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| 36 | ret = setsockopt(s, SOL_SOCKET, SO_BROADCAST, (unsigned int *) &on, |
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| 37 | sizeof(on)); |
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| 38 | if (ret < 0) { |
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| 39 | syslog(LOG_ERR, "cannot set broadcast socket\n"); |
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| 40 | return -1; |
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| 41 | } |
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| 42 | |
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| 43 | return s; |
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| 44 | } |
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| 45 | |
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[96b02b5] | 46 | bool wake_up_send(int sd, struct sockaddr_in *client, |
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| 47 | const struct wol_msg *msg, const struct in_addr *addr) |
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| 48 | { |
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| 49 | int ret; |
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| 50 | |
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| 51 | client->sin_addr.s_addr = addr->s_addr; |
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| 52 | |
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| 53 | ret = sendto(sd, msg, sizeof(*msg), 0, |
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| 54 | (struct sockaddr *)client, sizeof(*client)); |
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| 55 | if (ret < 0) { |
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| 56 | syslog(LOG_ERR, "failed to send wol\n"); |
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| 57 | return false; |
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| 58 | } |
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| 59 | |
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| 60 | return true; |
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| 61 | } |
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| 62 | |
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| 63 | bool wake_up_broadcast(int sd, struct sockaddr_in *client, |
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| 64 | const struct wol_msg *msg) |
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| 65 | { |
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| 66 | struct sockaddr_in *broadcast_addr, addr = {}; |
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| 67 | struct ifaddrs *ifaddr, *ifa; |
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| 68 | |
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| 69 | if (getifaddrs(&ifaddr) < 0) { |
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| 70 | syslog(LOG_ERR, "cannot get list of addresses\n"); |
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| 71 | return false; |
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| 72 | } |
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| 73 | |
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| 74 | addr.sin_addr.s_addr = htonl(INADDR_BROADCAST); |
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| 75 | |
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| 76 | for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) { |
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| 77 | if (ifa->ifa_addr == NULL || |
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| 78 | ifa->ifa_addr->sa_family != AF_INET || |
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[fe1ce97] | 79 | strcmp(ifa->ifa_name, ogconfig.wol.interface) != 0) |
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[96b02b5] | 80 | continue; |
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| 81 | |
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| 82 | broadcast_addr = |
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| 83 | (struct sockaddr_in *)ifa->ifa_ifu.ifu_broadaddr; |
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| 84 | addr.sin_addr.s_addr = broadcast_addr->sin_addr.s_addr; |
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| 85 | break; |
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| 86 | } |
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| 87 | freeifaddrs(ifaddr); |
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| 88 | |
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| 89 | return wake_up_send(sd, client, msg, &addr.sin_addr); |
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| 90 | } |
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[1f13855] | 91 | |
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[64bbc0c] | 92 | #define OG_WOL_CLIENT_TIMEOUT 60. |
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[1f13855] | 93 | |
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| 94 | static void og_client_wol_timer_cb(struct ev_loop *loop, ev_timer *timer, |
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| 95 | int events) |
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| 96 | { |
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| 97 | struct og_client_wol *cli_wol; |
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| 98 | |
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| 99 | cli_wol = container_of(timer, struct og_client_wol, timer); |
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| 100 | |
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| 101 | syslog(LOG_ERR, "timeout WakeOnLAN request for client %s\n", |
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| 102 | inet_ntoa(cli_wol->addr)); |
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[64bbc0c] | 103 | og_client_wol_destroy(cli_wol); |
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[1f13855] | 104 | } |
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| 105 | |
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| 106 | struct og_client_wol *og_client_wol_create(const struct in_addr *addr) |
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| 107 | { |
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| 108 | struct og_client_wol *cli_wol; |
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| 109 | |
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| 110 | cli_wol = calloc(1, sizeof(struct og_client_wol)); |
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| 111 | if (!cli_wol) |
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| 112 | return NULL; |
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| 113 | |
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| 114 | cli_wol->addr = *addr; |
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| 115 | |
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[64bbc0c] | 116 | ev_init(&cli_wol->timer, og_client_wol_timer_cb); |
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| 117 | cli_wol->timer.repeat = OG_WOL_CLIENT_TIMEOUT; |
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| 118 | ev_timer_again(og_loop, &cli_wol->timer); |
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[1f13855] | 119 | |
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| 120 | return cli_wol; |
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| 121 | } |
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| 122 | |
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| 123 | void og_client_wol_refresh(struct og_client_wol *cli_wol) |
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| 124 | { |
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| 125 | ev_timer_again(og_loop, &cli_wol->timer); |
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| 126 | } |
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| 127 | |
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| 128 | void og_client_wol_destroy(struct og_client_wol *cli_wol) |
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| 129 | { |
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| 130 | ev_timer_stop(og_loop, &cli_wol->timer); |
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| 131 | list_del(&cli_wol->list); |
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| 132 | free(cli_wol); |
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| 133 | } |
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| 134 | |
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| 135 | const char *og_client_wol_status(const struct og_client_wol *wol) |
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| 136 | { |
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| 137 | return "WOL_SENT"; |
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| 138 | } |
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