2 Copyright 2006 Matthias Haas <vomp@pompase.net>
4 This file is part of VOMP.
6 VOMP is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 VOMP is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with VOMP; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 Based on the work by R. Edwards (bob@cs.anu.edu.au) for the wakeonlan stuff
21 Based ont the work of Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org> for the arp stuff
29 #if !defined(__ANDROID__) && !defined(WIN32)
30 #include <net/ethernet.h>
38 #include <sys/socket.h>
39 #include <netinet/in.h>
49 #define _PATH_PROCNET_ARP "/proc/net/arp"
51 static const char* TAG = "WOL";
53 Wol* Wol::instance = NULL;
61 logger = LogNT::getInstance();
71 Wol* Wol::getInstance()
76 void Wol::setEnabled(bool tEnabled)
78 wolEnabled = tEnabled;
81 /* Display the contents of the ARP cache in the kernel. */
82 int Wol::find_ether(const char *name)
89 /* Open the PROCps kernel table. */
90 if ((fp = fopen(_PATH_PROCNET_ARP, "r")) == NULL)
92 perror(_PATH_PROCNET_ARP);
95 /* Bypass header -- read until newline */
96 if (fgets(line, sizeof(line), fp) != (char *) NULL)
98 /* Read the ARP cache entries. */
99 for (; fgets(line, sizeof(line), fp);) {
100 num = sscanf(line, "%s 0x%*x 0x%*x %100s %*100s %*100s\n",
104 /* if the user specified address differs, skip it */
105 if (name[0] && !strcmp(ip, name))
107 logger->info(TAG, "Found etheraddr {}", ether_addr);
117 int Wol::find_ether(const char *name)
119 sockaddr_in sock_address;
120 int sockname_len=sizeof(sock_address);
121 WSAStringToAddress(const_cast<LPSTR>(name),AF_INET,NULL,(sockaddr*)&sock_address,&sockname_len);
123 DWORD ip=sock_address.sin_addr.s_addr;;
125 PMIB_IPNETTABLE table;
127 GetIpNetTable(NULL,&size,TRUE);
128 table=(PMIB_IPNETTABLE)new char[size];
129 if (table==NULL) return -1;
130 if (GetIpNetTable(table,&size,TRUE)!=NOERROR)
132 logger->info(TAG, "Error getting IPtable");
136 for (int x=0;x<table->dwNumEntries;x++)
138 if (table->table[x].dwAddr==ip) {
139 char *ethp=ether_addr;
140 for (int i=0;i<table->table[x].dwPhysAddrLen;i++) {
141 ethp+=sprintf(ethp,"%X:",table->table[x].bPhysAddr[i]);
144 logger->info(TAG, "Found etheraddr {}", ether_addr);
157 /* Input an Ethernet address and convert to binary. */
158 int Wol::convertToBinary(char *bufp, unsigned char *addr)
165 unsigned char *ptr = addr;
169 while ((*bufp != '\0') && (i < ETH_ALEN))
175 else if (c >= 'a' && c <= 'f')
177 else if (c >= 'A' && c <= 'F')
182 fprintf(stderr, "in_ether(%s): invalid ether address!\n", orig);
191 else if (c >= 'a' && c <= 'f')
193 else if (c >= 'A' && c <= 'F')
195 else if (c == ':' || c == 0)
200 fprintf(stderr, "in_ether(%s): invalid ether address!\n", orig);
207 *ptr++ = static_cast<unsigned char>(val & 0377);
210 /* We might get a semicolon here - not required. */
225 if (!wolEnabled) return -2;
226 if (!bEtherKnown) return -3;
230 struct sockaddr_in sap;
231 unsigned char ethaddr[8];
233 unsigned char buf [128];
236 /* Fetch the hardware address. */
237 if (convertToBinary (ether_addr, ethaddr) < 0)
242 /* setup the packet socket */
243 if ((packet = socket (PF_INET, SOCK_DGRAM, 0)) < 0)
248 /* Set socket options */
250 if (setsockopt (packet, SOL_SOCKET, SO_BROADCAST, static_cast<void*>(&optval),
251 sizeof (optval)) < 0)
253 if (setsockopt (packet, SOL_SOCKET, SO_BROADCAST, (char*)&optval,
254 sizeof (optval)) < 0)
257 fprintf (stderr, "setsocket failed %s\n",
263 /* Set up broadcast address */
264 sap.sin_family = AF_INET;
265 sap.sin_addr.s_addr = htonl(0xffffffff); /* broadcast address
267 sap.sin_port = htons(60000);
269 /* Build the message to send - 6 x 0xff then 16 x MAC address */
271 for (i = 0; i < 6; i++)
273 for (j = 0; j < 16; j++)
274 for (i = 0; i < ETH_ALEN; i++)
275 *ptr++ = ethaddr [i];
277 /* Send the packet out */
279 if (sendto(packet, reinterpret_cast<const char*>(buf), 102, 0, reinterpret_cast<struct sockaddr *>(&sap), sizeof (sap)) < 0)
281 if (sendto(packet, static_cast<void*>(buf), 102, 0, reinterpret_cast<struct sockaddr *>(&sap), sizeof(sap)) < 0)
284 fprintf (stderr, " sendto failed, %s\n",
290 logger->info(TAG, "Send wakeonlan to server");
296 void Wol::setWakeUpIP(const char* ip_addr)
298 if(find_ether(ip_addr))
301 logger->info(TAG, "Server IP set");