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authorOpenGnSys Support Team <soporte-og@soleta.eu>2020-07-06 11:12:43 +0200
committerOpenGnSys Support Team <soporte-og@soleta.eu>2020-07-06 11:14:43 +0200
commit96b02b5424db61c32386c48fe05ec3375d8a84f5 (patch)
treee65fbc4e81effc9b245982c7de81d0ad0157cc96 /src/wol.c
parent06af0c26f4c46088d8a6f97877f865527bcbc409 (diff)
#971 split wake on lan code
Add wol.c and wol.h that implements WakeOnLan.
Diffstat (limited to 'src/wol.c')
-rw-r--r--src/wol.c67
1 files changed, 67 insertions, 0 deletions
diff --git a/src/wol.c b/src/wol.c
new file mode 100644
index 0000000..79bfaa3
--- /dev/null
+++ b/src/wol.c
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2020 Soleta Networks <info@soleta.eu>
+ *
+ * This program is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Affero General Public License as published by the
+ * Free Software Foundation, version 3.
+ */
+#include <sys/types.h>
+#include <ifaddrs.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <sys/socket.h>
+#include <syslog.h>
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <fcntl.h>
+#include "wol.h"
+#include "ogAdmServer.h"
+
+bool wake_up_send(int sd, struct sockaddr_in *client,
+ const struct wol_msg *msg, const struct in_addr *addr)
+{
+ int ret;
+
+ client->sin_addr.s_addr = addr->s_addr;
+
+ ret = sendto(sd, msg, sizeof(*msg), 0,
+ (struct sockaddr *)client, sizeof(*client));
+ if (ret < 0) {
+ syslog(LOG_ERR, "failed to send wol\n");
+ return false;
+ }
+
+ return true;
+}
+
+bool wake_up_broadcast(int sd, struct sockaddr_in *client,
+ const struct wol_msg *msg)
+{
+ struct sockaddr_in *broadcast_addr, addr = {};
+ struct ifaddrs *ifaddr, *ifa;
+
+ if (getifaddrs(&ifaddr) < 0) {
+ syslog(LOG_ERR, "cannot get list of addresses\n");
+ return false;
+ }
+
+ addr.sin_addr.s_addr = htonl(INADDR_BROADCAST);
+
+ for (ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
+ if (ifa->ifa_addr == NULL ||
+ ifa->ifa_addr->sa_family != AF_INET ||
+ strcmp(ifa->ifa_name, interface) != 0)
+ continue;
+
+ broadcast_addr =
+ (struct sockaddr_in *)ifa->ifa_ifu.ifu_broadaddr;
+ addr.sin_addr.s_addr = broadcast_addr->sin_addr.s_addr;
+ break;
+ }
+ freeifaddrs(ifaddr);
+
+ return wake_up_send(sd, client, msg, &addr.sin_addr);
+}