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-rw-r--r--networking/Config.in6
-rw-r--r--networking/Makefile.in62
-rw-r--r--networking/ether-wake.c300
3 files changed, 337 insertions, 31 deletions
diff --git a/networking/Config.in b/networking/Config.in
index a84427981..b6f8ee65d 100644
--- a/networking/Config.in
+++ b/networking/Config.in
@@ -18,6 +18,12 @@ config CONFIG_ARPING
help
Ping hosts by ARP packets
+config CONFIG_ETHER_WAKE
+ bool "ether-wake"
+ default n
+ help
+ Send a magic packet to wake up sleeping machines.
+
config CONFIG_FAKEIDENTD
bool "fakeidentd"
default n
diff --git a/networking/Makefile.in b/networking/Makefile.in
index 778d0bade..d44a3d518 100644
--- a/networking/Makefile.in
+++ b/networking/Makefile.in
@@ -23,35 +23,36 @@ NETWORKING_DIR:=$(top_builddir)/networking/
endif
srcdir=$(top_srcdir)/networking
NETWORKING-y:=
-NETWORKING-$(CONFIG_ARPING) += arping.o
-NETWORKING-$(CONFIG_FAKEIDENTD) += fakeidentd.o
-NETWORKING-$(CONFIG_FTPGET) += ftpgetput.o
-NETWORKING-$(CONFIG_FTPPUT) += ftpgetput.o
-NETWORKING-$(CONFIG_HOSTNAME) += hostname.o
-NETWORKING-$(CONFIG_HTTPD) += httpd.o
-NETWORKING-$(CONFIG_IFCONFIG) += ifconfig.o
-NETWORKING-$(CONFIG_IFUPDOWN) += ifupdown.o
-NETWORKING-$(CONFIG_INETD) += inetd.o
-NETWORKING-$(CONFIG_IP) += ip.o
-NETWORKING-$(CONFIG_IPCALC) += ipcalc.o
-NETWORKING-$(CONFIG_IPADDR) += ipaddr.o
-NETWORKING-$(CONFIG_IPLINK) += iplink.o
-NETWORKING-$(CONFIG_IPROUTE) += iproute.o
-NETWORKING-$(CONFIG_IPTUNNEL) += iptunnel.o
-NETWORKING-$(CONFIG_NAMEIF) += nameif.o
-NETWORKING-$(CONFIG_NC) += nc.o
-NETWORKING-$(CONFIG_NETSTAT) += netstat.o
-NETWORKING-$(CONFIG_NSLOOKUP) += nslookup.o
-NETWORKING-$(CONFIG_PING) += ping.o
-NETWORKING-$(CONFIG_PING6) += ping6.o
-NETWORKING-$(CONFIG_ROUTE) += route.o
-NETWORKING-$(CONFIG_TELNET) += telnet.o
-NETWORKING-$(CONFIG_TELNETD) += telnetd.o
-NETWORKING-$(CONFIG_TFTP) += tftp.o
-NETWORKING-$(CONFIG_TRACEROUTE) += traceroute.o
-NETWORKING-$(CONFIG_VCONFIG) += vconfig.o
-NETWORKING-$(CONFIG_WGET) += wget.o
-NETWORKING-$(CONFIG_ZCIP) += zcip.o
+NETWORKING-$(CONFIG_ARPING) += arping.o
+NETWORKING-$(CONFIG_ETHER_WAKE) += ether-wake.o
+NETWORKING-$(CONFIG_FAKEIDENTD) += fakeidentd.o
+NETWORKING-$(CONFIG_FTPGET) += ftpgetput.o
+NETWORKING-$(CONFIG_FTPPUT) += ftpgetput.o
+NETWORKING-$(CONFIG_HOSTNAME) += hostname.o
+NETWORKING-$(CONFIG_HTTPD) += httpd.o
+NETWORKING-$(CONFIG_IFCONFIG) += ifconfig.o
+NETWORKING-$(CONFIG_IFUPDOWN) += ifupdown.o
+NETWORKING-$(CONFIG_INETD) += inetd.o
+NETWORKING-$(CONFIG_IP) += ip.o
+NETWORKING-$(CONFIG_IPCALC) += ipcalc.o
+NETWORKING-$(CONFIG_IPADDR) += ipaddr.o
+NETWORKING-$(CONFIG_IPLINK) += iplink.o
+NETWORKING-$(CONFIG_IPROUTE) += iproute.o
+NETWORKING-$(CONFIG_IPTUNNEL) += iptunnel.o
+NETWORKING-$(CONFIG_NAMEIF) += nameif.o
+NETWORKING-$(CONFIG_NC) += nc.o
+NETWORKING-$(CONFIG_NETSTAT) += netstat.o
+NETWORKING-$(CONFIG_NSLOOKUP) += nslookup.o
+NETWORKING-$(CONFIG_PING) += ping.o
+NETWORKING-$(CONFIG_PING6) += ping6.o
+NETWORKING-$(CONFIG_ROUTE) += route.o
+NETWORKING-$(CONFIG_TELNET) += telnet.o
+NETWORKING-$(CONFIG_TELNETD) += telnetd.o
+NETWORKING-$(CONFIG_TFTP) += tftp.o
+NETWORKING-$(CONFIG_TRACEROUTE) += traceroute.o
+NETWORKING-$(CONFIG_VCONFIG) += vconfig.o
+NETWORKING-$(CONFIG_WGET) += wget.o
+NETWORKING-$(CONFIG_ZCIP) += zcip.o
libraries-y+=$(NETWORKING_DIR)$(NETWORKING_AR)
@@ -59,7 +60,7 @@ needcrypt-y:=
needcrypt-$(CONFIG_FEATURE_HTTPD_AUTH_MD5) := y
ifeq ($(needcrypt-y),y)
- LIBRARIES += -lcrypt
+ LIBRARIES += -lcrypt
endif
$(NETWORKING_DIR)$(NETWORKING_AR): $(patsubst %,$(NETWORKING_DIR)%, $(NETWORKING-y))
@@ -67,4 +68,3 @@ $(NETWORKING_DIR)$(NETWORKING_AR): $(patsubst %,$(NETWORKING_DIR)%, $(NETWORKING
$(NETWORKING_DIR)%.o: $(srcdir)/%.c
$(CC) $(CFLAGS) $(EXTRA_CFLAGS) -c -o $@ $<
-
diff --git a/networking/ether-wake.c b/networking/ether-wake.c
new file mode 100644
index 000000000..83ceece80
--- /dev/null
+++ b/networking/ether-wake.c
@@ -0,0 +1,300 @@
+/*
+ * ether-wake.c - Send a magic packet to wake up sleeping machines.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Author: Donald Becker, http://www.scyld.com/"; http://www.scyld.com/wakeonlan.html
+ * Busybox port: Christian Volkmann <haveaniceday@online.de>
+ * Used version of ether-wake.c: v1.09 11/12/2003 Donald Becker, http://www.scyld.com/";
+ */
+
+/* full usage according Donald Becker
+ * usage: ether-wake [-i <ifname>] [-p aa:bb:cc:dd[:ee:ff]] 00:11:22:33:44:55\n"
+ *
+ * This program generates and transmits a Wake-On-LAN (WOL)\n"
+ * \"Magic Packet\", used for restarting machines that have been\n"
+ * soft-powered-down (ACPI D3-warm state).\n"
+ * It currently generates the standard AMD Magic Packet format, with\n"
+ * an optional password appended.\n"
+ *
+ * The single required parameter is the Ethernet MAC (station) address\n"
+ * of the machine to wake or a host ID with known NSS 'ethers' entry.\n"
+ * The MAC address may be found with the 'arp' program while the target\n"
+ * machine is awake.\n"
+ *
+ * Options:\n"
+ * -b Send wake-up packet to the broadcast address.\n"
+ * -D Increase the debug level.\n"
+ * -i ifname Use interface IFNAME instead of the default 'eth0'.\n"
+ * -p <pw> Append the four or six byte password PW to the packet.\n"
+ * A password is only required for a few adapter types.\n"
+ * The password may be specified in ethernet hex format\n"
+ * or dotted decimal (Internet address)\n"
+ * -p 00:22:44:66:88:aa\n"
+ * -p 192.168.1.1\n";
+ *
+ *
+ * This program generates and transmits a Wake-On-LAN (WOL) "Magic Packet",
+ * used for restarting machines that have been soft-powered-down
+ * (ACPI D3-warm state). It currently generates the standard AMD Magic Packet
+ * format, with an optional password appended.
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU Public License, incorporated herein by reference.
+ * Contact the author for use under other terms.
+ *
+ * This source file was originally part of the network tricks package, and
+ * is now distributed to support the Scyld Beowulf system.
+ * Copyright 1999-2003 Donald Becker and Scyld Computing Corporation.
+ *
+ * The author may be reached as becker@scyld, or C/O
+ * Scyld Computing Corporation
+ * 914 Bay Ridge Road, Suite 220
+ * Annapolis MD 21403
+ *
+ * Notes:
+ * On some systems dropping root capability allows the process to be
+ * dumped, traced or debugged.
+ * If someone traces this program, they get control of a raw socket.
+ * Linux handles this safely, but beware when porting this program.
+ *
+ * An alternative to needing 'root' is using a UDP broadcast socket, however
+ * doing so only works with adapters configured for unicast+broadcast Rx
+ * filter. That configuration consumes more power.
+*/
+
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <ctype.h>
+#include <string.h>
+
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <features.h>
+#include <netpacket/packet.h>
+#include <net/ethernet.h>
+#include <netdb.h>
+#include <netinet/ether.h>
+
+#ifdef __linux__
+#include <linux/if.h>
+#endif
+
+#include "busybox.h"
+
+/* Note: PF_INET, SOCK_DGRAM, IPPROTO_UDP would allow SIOCGIFHWADDR to
+ * work as non-root, but we need SOCK_PACKET to specify the Ethernet
+ * destination address.
+ */
+#ifdef PF_PACKET
+# define whereto_t sockaddr_ll
+# define make_socket() socket(PF_PACKET, SOCK_RAW, 0)
+#else
+# define whereto_t sockaddr
+# define make_socket() socket(AF_INET, SOCK_PACKET, SOCK_PACKET)
+#endif
+
+#ifdef DEBUG
+# define bb_debug_msg(fmt, args...) fprintf(stderr, fmt, ## args)
+void bb_debug_dump_packet(unsigned char *outpack, int pktsize)
+{
+ int i;
+ printf("packet dump:\n");
+ for (i = 0; i < pktsize; ++i) {
+ printf("%2.2x ", outpack[i]);
+ if (i % 20 == 19) printf("\n");
+ }
+ printf("\n\n");
+}
+#else
+# define bb_debug_msg(fmt, args...)
+# define bb_debug_dump_packet(outpack, pktsize)
+#endif
+
+static inline void get_dest_addr(const char *arg, struct ether_addr *eaddr);
+static inline int get_fill(unsigned char *pkt, struct ether_addr *eaddr, int broadcast);
+static inline int get_wol_pw(const char *ethoptarg, unsigned char *wol_passwd);
+
+int etherwake_main(int argc, char *argv[])
+{
+ char *ifname = "eth0", *pass = NULL;
+ unsigned long flags;
+ unsigned char wol_passwd[6];
+ int wol_passwd_sz = 0;
+
+ int s; /* Raw socket */
+ int pktsize;
+ unsigned char outpack[1000];
+
+ struct ether_addr eaddr;
+ struct whereto_t whereto; /* who to wake up */
+
+ /* handle misc user options */
+ flags = bb_getopt_ulflags(argc, argv, "bi:p:", &ifname, &pass);
+ if (optind == argc)
+ bb_show_usage();
+ if (pass)
+ wol_passwd_sz = get_wol_pw(pass, wol_passwd);
+
+ /* create the raw socket */
+ s = make_socket();
+ if (s < 0)
+ bb_perror_msg_and_die(bb_msg_can_not_create_raw_socket);
+
+ /* now that we have a raw socket we can drop root */
+ setuid(getuid());
+
+ /* look up the dest mac address */
+ get_dest_addr(argv[optind], &eaddr);
+
+ /* fill out the header of the packet */
+ pktsize = get_fill(outpack, &eaddr, flags /*& 1 [OPT_BROADCAST]*/);
+
+ bb_debug_dump_packet(outpack, pktsize);
+
+ /* Fill in the source address, if possible. */
+#ifdef __linux__
+ {
+ struct ifreq if_hwaddr;
+
+ strcpy(if_hwaddr.ifr_name, ifname);
+ if (ioctl(s, SIOCGIFHWADDR, &if_hwaddr) < 0)
+ bb_perror_msg_and_die("SIOCGIFHWADDR on %s failed", ifname);
+
+ memcpy(outpack+6, if_hwaddr.ifr_hwaddr.sa_data, 6);
+
+# ifdef DEBUG
+ {
+ unsigned char *hwaddr = if_hwaddr.ifr_hwaddr.sa_data;
+ printf("The hardware address (SIOCGIFHWADDR) of %s is type %d "
+ "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x\n\n", ifname,
+ if_hwaddr.ifr_hwaddr.sa_family, hwaddr[0], hwaddr[1],
+ hwaddr[2], hwaddr[3], hwaddr[4], hwaddr[5]);
+ }
+# endif
+ }
+#endif /* __linux__ */
+
+ bb_debug_dump_packet(outpack, pktsize);
+
+ /* append the password if specified */
+ if (wol_passwd_sz > 0) {
+ memcpy(outpack+pktsize, wol_passwd, wol_passwd_sz);
+ pktsize += wol_passwd_sz;
+ }
+
+ bb_debug_dump_packet(outpack, pktsize);
+
+ /* This is necessary for broadcasts to work */
+ if (flags /*& 1 [OPT_BROADCAST]*/) {
+ int one = 1;
+ if (setsockopt(s, SOL_SOCKET, SO_BROADCAST, (void *)&one, sizeof(one)) < 0)
+ bb_perror_msg("SO_BROADCAST");
+ }
+
+#if defined(PF_PACKET)
+ {
+ struct ifreq ifr;
+ strncpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name));
+ if (ioctl(s, SIOCGIFINDEX, &ifr) == -1)
+ bb_perror_msg_and_die("SIOCGIFINDEX");
+ memset(&whereto, 0, sizeof(whereto));
+ whereto.sll_family = AF_PACKET;
+ whereto.sll_ifindex = ifr.ifr_ifindex;
+ /* The manual page incorrectly claims the address must be filled.
+ We do so because the code may change to match the docs. */
+ whereto.sll_halen = ETH_ALEN;
+ memcpy(whereto.sll_addr, outpack, ETH_ALEN);
+ }
+#else
+ whereto.sa_family = 0;
+ strcpy(whereto.sa_data, ifname);
+#endif
+
+ if (sendto(s, outpack, pktsize, 0, (struct sockaddr *)&whereto, sizeof(whereto)) < 0)
+ bb_perror_msg(bb_msg_write_error);
+
+ close(s);
+
+ return EXIT_SUCCESS;
+}
+
+/* Convert the host ID string to a MAC address.
+ * The string may be a:
+ * Host name
+ * IP address string
+ * MAC address string
+*/
+static inline void get_dest_addr(const char *hostid, struct ether_addr *eaddr)
+{
+ struct ether_addr *eap;
+
+ eap = ether_aton(hostid);
+ if (eap) {
+ *eaddr = *eap;
+ bb_debug_msg("The target station address is %s\n\n", ether_ntoa(eaddr));
+ } else if (ether_hostton(hostid, eaddr) == 0) {
+ bb_debug_msg("Station address for hostname %s is %s\n\n", hostid, ether_ntoa(eaddr));
+ } else
+ bb_show_usage();
+}
+
+static inline int get_fill(unsigned char *pkt, struct ether_addr *eaddr, int broadcast)
+{
+ int offset, i;
+ unsigned char *station_addr = eaddr->ether_addr_octet;
+
+ if (broadcast)
+ memset(pkt+0, 0xff, 6);
+ else
+ memcpy(pkt, station_addr, 6);
+ memcpy(pkt+6, station_addr, 6);
+ pkt[12] = 0x08; /* Or 0x0806 for ARP, 0x8035 for RARP */
+ pkt[13] = 0x42;
+ offset = 14;
+
+ memset(pkt+offset, 0xff, 6);
+ offset += 6;
+
+ for (i = 0; i < 16; ++i) {
+ memcpy(pkt+offset, station_addr, 6);
+ offset += 6;
+ }
+
+ return offset;
+}
+
+static inline int get_wol_pw(const char *ethoptarg, unsigned char *wol_passwd)
+{
+ int passwd[6];
+ int byte_cnt, i;
+
+ /* handle MAC format */
+ byte_cnt = sscanf(ethoptarg, "%2x:%2x:%2x:%2x:%2x:%2x",
+ &passwd[0], &passwd[1], &passwd[2],
+ &passwd[3], &passwd[4], &passwd[5]);
+ /* handle IP format */
+ if (byte_cnt < 4)
+ byte_cnt = sscanf(ethoptarg, "%d.%d.%d.%d",
+ &passwd[0], &passwd[1], &passwd[2], &passwd[3]);
+ if (byte_cnt < 4) {
+ bb_error_msg("Unable to read the Wake-On-LAN pass");
+ return 0;
+ }
+
+ for (i = 0; i < byte_cnt; ++i)
+ wol_passwd[i] = passwd[i];
+
+ bb_debug_msg("password: %2.2x %2.2x %2.2x %2.2x (%d)\n\n",
+ wol_passwd[0], wol_passwd[1], wol_passwd[2], wol_passwd[3],
+ byte_cnt);
+
+ return byte_cnt;
+}
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