Module Name: src
Committed By: mbalmer
Date: Thu Jun 25 18:41:22 UTC 2009
Modified Files:
src/distrib/sets/lists/base: mi
src/distrib/sets/lists/man: mi
src/usr.sbin: Makefile
Added Files:
src/usr.sbin/wake: Makefile wake.8 wake.c
Log Message:
wake(8) is a command to send Wake-on-LAN packets to machines on the local
ethernet, allowing machines to be powered up without physical access to them.
tonnerre@ and tron@ reviewed it and decided that the bin directories
are not to full for this small and useful command.
To generate a diff of this commit:
cvs rdiff -u -r1.820 -r1.821 src/distrib/sets/lists/base/mi
cvs rdiff -u -r1.1142 -r1.1143 src/distrib/sets/lists/man/mi
cvs rdiff -u -r1.241 -r1.242 src/usr.sbin/Makefile
cvs rdiff -u -r0 -r1.1 src/usr.sbin/wake/Makefile src/usr.sbin/wake/wake.8 \
src/usr.sbin/wake/wake.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/distrib/sets/lists/base/mi
diff -u src/distrib/sets/lists/base/mi:1.820 src/distrib/sets/lists/base/mi:1.821
--- src/distrib/sets/lists/base/mi:1.820 Tue Jun 23 17:58:22 2009
+++ src/distrib/sets/lists/base/mi Thu Jun 25 18:41:22 2009
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.820 2009/06/23 17:58:22 tron Exp $
+# $NetBSD: mi,v 1.821 2009/06/25 18:41:22 mbalmer Exp $
#
# Note: Don't delete entries from here - mark them as "obsolete" instead,
# unless otherwise stated below.
@@ -1667,6 +1667,7 @@
./usr/sbin/veriexecgen base-sysutil-bin
./usr/sbin/vipw base-sysutil-bin
./usr/sbin/vnconfig base-sysutil-bin
+./usr/sbin/wake base-netutil-bin
./usr/sbin/wiconfig base-sysutil-bin
./usr/sbin/wire-test base-netutil-bin
./usr/sbin/wlanctl base-sysutil-bin
Index: src/distrib/sets/lists/man/mi
diff -u src/distrib/sets/lists/man/mi:1.1142 src/distrib/sets/lists/man/mi:1.1143
--- src/distrib/sets/lists/man/mi:1.1142 Tue Jun 23 17:58:23 2009
+++ src/distrib/sets/lists/man/mi Thu Jun 25 18:41:22 2009
@@ -1,4 +1,4 @@
-# $NetBSD: mi,v 1.1142 2009/06/23 17:58:23 tron Exp $
+# $NetBSD: mi,v 1.1143 2009/06/25 18:41:22 mbalmer Exp $
#
# Note: don't delete entries from here - mark them as "obsolete" instead.
#
@@ -2681,6 +2681,7 @@
./usr/share/man/cat8/virtual.0 man-postfix-catman postfix,.cat
./usr/share/man/cat8/vmstat.0 man-obsolete obsolete
./usr/share/man/cat8/vnconfig.0 man-sysutil-catman .cat
+./usr/share/man/cat8/wake.0 man-netutil-catman .cat
./usr/share/man/cat8/walnut/MAKEDEV.0 man-obsolete obsolete
./usr/share/man/cat8/walnut/makedev.0 man-obsolete obsolete
./usr/share/man/cat8/wdogctl.0 man-sysutil-catman .cat
@@ -4989,6 +4990,7 @@
./usr/share/man/html8/vgscan.html man-lvm-htmlman lvm,html
./usr/share/man/html8/vgsplit.html man-lvm-htmlman lvm,html
./usr/share/man/html8/vnconfig.html man-sysutil-htmlman html
+./usr/share/man/html8/wake.html man-netutil-htmlman html
./usr/share/man/html8/wdogctl.html man-sysutil-htmlman html
./usr/share/man/html8/wiconfig.html man-netutil-htmlman html
./usr/share/man/html8/wire-test.html man-netutil-htmlman html
@@ -7665,6 +7667,7 @@
./usr/share/man/man8/virtual.8 man-postfix-man postfix,.man
./usr/share/man/man8/vmstat.8 man-obsolete obsolete
./usr/share/man/man8/vnconfig.8 man-sysutil-man .man
+./usr/share/man/man8/wake.8 man-netutil-man .man
./usr/share/man/man8/walnut/MAKEDEV.8 man-obsolete obsolete
./usr/share/man/man8/walnut/makedev.8 man-obsolete obsolete
./usr/share/man/man8/wdogctl.8 man-sysutil-man .man
Index: src/usr.sbin/Makefile
diff -u src/usr.sbin/Makefile:1.241 src/usr.sbin/Makefile:1.242
--- src/usr.sbin/Makefile:1.241 Thu Jun 25 13:59:00 2009
+++ src/usr.sbin/Makefile Thu Jun 25 18:41:21 2009
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile,v 1.241 2009/06/25 13:59:00 agc Exp $
+# $NetBSD: Makefile,v 1.242 2009/06/25 18:41:21 mbalmer Exp $
# from: @(#)Makefile 5.20 (Berkeley) 6/12/93
.include <bsd.own.mk>
@@ -21,7 +21,8 @@
schedctl sliplogin sntp \
spray srtconfig sti sunlabel sup syslogd tadpolectl tcpdchk \
tcpdmatch tcpdump tcpdrop timed tpctl traceroute trpt unlink \
- usbdevs user videomode vipw veriexecgen vnconfig wiconfig wlanctl wpa \
+ usbdevs user videomode vipw veriexecgen vnconfig wake wiconfig \
+ wlanctl wpa \
wsconscfg wsfontload wsmoused wsmuxctl zdump zic
.if (${MKKERBEROS} != "no")
Added files:
Index: src/usr.sbin/wake/Makefile
diff -u /dev/null src/usr.sbin/wake/Makefile:1.1
--- /dev/null Thu Jun 25 18:41:23 2009
+++ src/usr.sbin/wake/Makefile Thu Jun 25 18:41:22 2009
@@ -0,0 +1,9 @@
+# $NetBSD: Makefile,v 1.1 2009/06/25 18:41:22 mbalmer Exp $
+
+PROG= wake
+SRCS= wake.c
+
+BINDIR= /usr/sbin
+MAN= wake.8
+
+.include <bsd.prog.mk>
Index: src/usr.sbin/wake/wake.8
diff -u /dev/null src/usr.sbin/wake/wake.8:1.1
--- /dev/null Thu Jun 25 18:41:23 2009
+++ src/usr.sbin/wake/wake.8 Thu Jun 25 18:41:22 2009
@@ -0,0 +1,60 @@
+.\" $NetBSD: wake.8,v 1.1 2009/06/25 18:41:22 mbalmer Exp $
+.\"
+.\" Copyright (c) 2009 Marc Balmer <[email protected]>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd February 2 2009
+.Dt WAKE 8
+.Os
+.Sh NAME
+.Nm wake
+.Nd "send Wake on LAN frames to hosts on a local Ethernet network"
+.Sh SYNOPSIS
+.Nm
+.Ar interface
+.Op Ar lladdr ...
+.Sh DESCRIPTION
+The
+.Nm
+program is used to send Wake on LAN (WoL) frames over a local
+Ethernet network to one or more hosts using their link layer (hardware)
+addresses.
+WoL functionality is generally enabled in a machine's BIOS
+and can be used to power on machines from a remote system without
+having physical access to them.
+.Pp
+.Ar interface
+is the network interface of the local machine.
+.Ar lladdr
+are the link layer addresses of the remote machines
+and can be specified as the actual hardware address
+(six hexadecimal numbers separated by colons)
+or a hostname entry in
+.Pa /etc/ethers .
+Link layer addresses can be determined and set on
+.Nx
+machines using
+.Xr ifconfig 8 .
+.Sh FILES
+.Bl -tag -width "/etc/ethers" -compact
+.It /etc/ethers
+Ethernet host name database.
+.El
+.Sh SEE ALSO
+.Xr ethers 5 ,
+.Xr ifconfig 8
+.Sh AUTHORS
+.Nm
+was written by
+.Aq [email protected] .
Index: src/usr.sbin/wake/wake.c
diff -u /dev/null src/usr.sbin/wake/wake.c:1.1
--- /dev/null Thu Jun 25 18:41:23 2009
+++ src/usr.sbin/wake/wake.c Thu Jun 25 18:41:22 2009
@@ -0,0 +1,197 @@
+/* $NetBSD: wake.c,v 1.1 2009/06/25 18:41:22 mbalmer Exp $ */
+/*
+ * Copyright (C) 2006, 2007, 2008, 2009 Marc Balmer <[email protected]>
+ * Copyright (C) 2000 Eugene M. Kim. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Author's name may not be used endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/queue.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/time.h>
+#include <net/bpf.h>
+#include <net/if.h>
+
+#include <netinet/in.h>
+#include <netinet/if_ether.h>
+
+#include <err.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+#include <unistd.h>
+
+#ifndef BPF_PATH_FORMAT
+#define BPF_PATH_FORMAT "/dev/bpf%u"
+#endif
+
+#ifndef SYNC_LEN
+#define SYNC_LEN 6
+#endif
+
+#ifndef DESTADDR_COUNT
+#define DESTADDR_COUNT 16
+#endif
+
+__dead void usage(void);
+
+int wake(const char *iface, const char *host);
+int get_bpf(void);
+int bind_if_to_bpf(char const *ifname, int bpf);
+int get_ether(char const *text, struct ether_addr *addr);
+int send_wakeup(int bpf, struct ether_addr const *addr);
+
+void
+usage(void)
+{
+ extern char *__progname;
+
+ (void)fprintf(stderr, "usage: %s interface lladdr\n", __progname);
+ exit(0);
+}
+
+int
+wake(const char *iface, const char *host)
+{
+ int res, bpf;
+ struct ether_addr macaddr;
+
+ bpf = get_bpf();
+ if (bpf == -1) {
+ printf("no bpf\n");
+ return -1;
+ }
+ if (bind_if_to_bpf(iface, bpf) == -1 ||
+ get_ether(host, &macaddr) == -1) {
+ (void)close(bpf);
+ return -1;
+ }
+ res = send_wakeup(bpf, &macaddr);
+ (void)close(bpf);
+ return res;
+}
+
+int
+get_bpf(void)
+{
+ int i, fd;
+ char path[MAXPATHLEN];
+
+ for (i = 0;; i++) {
+ if (snprintf(path, sizeof(path), BPF_PATH_FORMAT, i) == -1)
+ return -1;
+
+ fd = open(path, O_RDWR);
+ if (fd != -1)
+ return fd;
+ if (errno == EBUSY)
+ continue;
+ break;
+ }
+ return -1;
+}
+
+int
+bind_if_to_bpf(char const *ifname, int bpf)
+{
+ struct ifreq ifr;
+ u_int dlt;
+
+ if (strlcpy(ifr.ifr_name, ifname, sizeof(ifr.ifr_name)) >=
+ sizeof(ifr.ifr_name))
+ return -1;
+ if (ioctl(bpf, BIOCSETIF, &ifr) == -1)
+ return -1;
+ if (ioctl(bpf, BIOCGDLT, &dlt) == -1)
+ return -1;
+ if (dlt != DLT_EN10MB)
+ return -1;
+ return 0;
+}
+
+int
+get_ether(char const *text, struct ether_addr *addr)
+{
+ struct ether_addr *paddr;
+
+ paddr = ether_aton(text);
+ if (paddr != NULL) {
+ *addr = *paddr;
+ return 0;
+ }
+ if (ether_hostton(text, addr))
+ return -1;
+ return 0;
+}
+
+int
+send_wakeup(int bpf, struct ether_addr const *addr)
+{
+ struct {
+ struct ether_header hdr;
+ u_char data[SYNC_LEN + ETHER_ADDR_LEN * DESTADDR_COUNT];
+ } pkt;
+ u_char *p;
+ int i;
+ ssize_t bw;
+ ssize_t len;
+
+ (void)memset(pkt.hdr.ether_dhost, 0xff, sizeof(pkt.hdr.ether_dhost));
+ pkt.hdr.ether_type = htons(0);
+ (void)memset(pkt.data, 0xff, SYNC_LEN);
+ for (p = pkt.data + SYNC_LEN, i = 0; i < DESTADDR_COUNT;
+ p += ETHER_ADDR_LEN, i++)
+ bcopy(addr->ether_addr_octet, p, ETHER_ADDR_LEN);
+ p = (u_char *)&pkt;
+ len = sizeof(pkt);
+ bw = 0;
+ while (len) {
+ if ((bw = write(bpf, &pkt, sizeof(pkt))) == -1)
+ return -1;
+ len -= bw;
+ p += bw;
+ }
+ return 0;
+}
+
+int
+main(int argc, char *argv[])
+{
+ int n;
+
+ if (argc < 3)
+ usage();
+
+ for (n = 2; n < argc; n++)
+ if (wake(argv[1], argv[n]))
+ warnx("error sending Wake on LAN frame over %s to %s",
+ argv[1], argv[n]);
+ return 0;
+}
