1 files changed, 154 insertions, 0 deletions
diff --git a/usr/src/cmd/dlutil/dlsend.c b/usr/src/cmd/dlutil/dlsend.c
new file mode 100644
index 0000000000..995ba45eee
--- /dev/null
+++ b/usr/src/cmd/dlutil/dlsend.c
@@ -0,0 +1,154 @@
+/*
+ * This file and its contents are supplied under the terms of the
+ * Common Development and Distribution License ("CDDL"), version 1.0.
+ * You may only use this file in accordance with the terms of version
+ * 1.0 of the CDDL.
+ *
+ * A full copy of the text of the CDDL should have accompanied this
+ * source.  A copy of the CDDL is also available via the Internet at
+ * http://www.illumos.org/license/CDDL.
+ */
+
+/*
+ * Copyright (c) 2018, Joyent, Inc.
+ */
+
+/*
+ * Send a raw Ethernet frame once a second to a specified MAC address.
+ */
+
+#include <stdio.h>
+#include <errno.h>
+#include <strings.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <libgen.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <netdb.h>
+#include <libdlpi.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <endian.h>
+#include <err.h>
+
+#include "dlsend.h"
+
+static uint_t dlsend_sap = DLSEND_SAP;
+static const char *dlsend_msg = DLSEND_MSG;
+static const char *dlsend_prog;
+
+static void
+dlsend_usage(const char *fmt, ...)
+{
+	if (fmt != NULL) {
+		va_list ap;
+
+		(void) fprintf(stderr, "%s: ", dlsend_prog);
+		va_start(ap, fmt);
+		(void) vfprintf(stderr, fmt, ap);
+		va_end(ap);
+	}
+
+	(void) fprintf(stderr, "Usage: %s [-s sap] device target-mac\n"
+	    "\t-s sap\tspecify SAP to send on\n",
+	    dlsend_prog);
+}
+
+int
+main(int argc, char *argv[])
+{
+	int c, maclen, ret;
+	unsigned long sap;
+	char *eptr;
+	uchar_t *mac;
+	char host[MAXHOSTNAMELEN];
+	uint_t bind_sap;
+	dlpi_handle_t dh;
+	uint64_t count;
+
+	dlsend_prog = basename(argv[0]);
+
+	while ((c = getopt(argc, argv, ":s:")) != -1) {
+		switch (c) {
+		case 's':
+			errno = 0;
+			sap = strtoul(optarg, &eptr, 10);
+			if (errno != 0 || sap == 0 || sap >= UINT16_MAX ||
+			    *eptr != '\0') {
+				dlsend_usage("Invalid value for sap (-s): %s\n",
+				    optarg);
+				return (2);
+			}
+			dlsend_sap = sap;
+			break;
+		case ':':
+			dlsend_usage("Option -%c requires an operand\n",
+			    optopt);
+			return (2);
+		case '?':
+			dlsend_usage("Unknown option: -%c\n", optopt);
+			return (2);
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	if (argc != 2) {
+		dlsend_usage("missing required operands\n");
+		return (2);
+	}
+
+	if ((mac = _link_aton(argv[1], &maclen)) == NULL) {
+		warnx("failed to convert target address %s\n", argv[1]);
+		return (1);
+	}
+
+	if (gethostname(host, sizeof (host)) != 0) {
+		warnx("failed to obtain the system hostname: %s\n",
+		    strerror(errno));
+		(void) strlcpy(host, "<unknown host>", sizeof (host));
+	}
+
+	if ((ret = dlpi_open(argv[0], &dh, 0)) != DLPI_SUCCESS) {
+		warnx("failed to open %s: %s\n", argv[0],
+		    dlpi_strerror(ret));
+		exit(1);
+	}
+
+	if ((ret = dlpi_bind(dh, dlsend_sap, &bind_sap)) != DLPI_SUCCESS) {
+		warnx("failed to bind to sap 0x%x: %s\n", dlsend_sap,
+		    dlpi_strerror(ret));
+		exit(1);
+	}
+
+	if (bind_sap != dlsend_sap) {
+		warnx("failed to bind to requested sap 0x%x, bound to "
+		    "0x%x\n", dlsend_sap, bind_sap);
+		exit(1);
+	}
+
+	count = 0;
+	for (;;) {
+		dlsend_msg_t msg;
+
+		count++;
+		bzero(&msg, sizeof (msg));
+		msg.dm_count = htobe64(count);
+		(void) strlcpy(msg.dm_host, host, sizeof (msg.dm_host));
+		(void) strlcpy(msg.dm_mesg, dlsend_msg, sizeof (msg.dm_mesg));
+		ret = dlpi_send(dh, mac, maclen, &msg, sizeof (msg), NULL);
+		if (ret != DLPI_SUCCESS) {
+			warnx("failed to send message: %s\n",
+			    dlpi_strerror(ret));
+			exit(1);
+		}
+
+		(void) sleep(1);
+	}
+
+	/* LINTED: E_STMT_NOT_REACHED */
+	return (0);
+}