/*
 * 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) 2014 Joyent, Inc.  All rights reserved.
 */

/*
 * Test that we can't link a nic with invalid names
 */

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include <strings.h>
#include <assert.h>
#include <stdio.h>
#include <unistd.h>

#include <sys/vnd.h>

#define	VND_PATH	"/dev/vnd/ctl"

static const char *names[] = {
	/* Reserved names */
	"ctl",
	"zone",
	/* Invalid characters */
	"The fight of the century",
	"Link/Ganon",
	"happens@7pm",
	"#testing",
	"asdf!!",
	"power&courage&wisdom",
	"over9000?",
	"you're",
	"100$",
	"(function",
	"x)",
	"2^128",
	"1++",
	"No.",
	"99%",
	"*****",
	"r|m",
	"=0",
	"`p0",
	"goodbye~",
	"however;",
	"\"hesaid",
	"shesaid\'",
	/* emoji pile of poo */
	"\xF0\x9F\x92\xA9",
	NULL
};

int
main(int argc, const char *argv[])
{
	int fd, ret, i;
	vnd_ioc_attach_t via;
	vnd_ioc_link_t vil;
	vnd_ioc_unlink_t viu;

	if (argc < 2) {
		(void) fprintf(stderr, "missing arguments...\n");
		return (1);
	}

	if (strlen(argv[1]) >= VND_NAMELEN) {
		(void) fprintf(stderr, "vnic name too long...\n");
		return (1);
	}

	fd = open(VND_PATH, O_RDWR);
	assert(fd > 0);

	(void) strlcpy(via.via_name, argv[1], VND_NAMELEN);
	via.via_zoneid = 0;
	via.via_errno = 0;

	ret = ioctl(fd, VND_IOC_ATTACH, &via);
	assert(ret == 0);
	assert(via.via_errno == 0);

	for (i = 0; names[i] != NULL; i++) {
		(void) strlcpy(vil.vil_name, names[i], VND_NAMELEN);
		(void) fprintf(stderr, "Trying to create [%s]\n", names[i]);
		vil.vil_errno = 0;
		ret = ioctl(fd, VND_IOC_LINK, &vil);
		assert(ret == -1);
		assert(vil.vil_errno == VND_E_BADNAME);
	}

	/* Finally, the missing null terminator */
	for (i = 0; i < VND_NAMELEN; i++)
		vil.vil_name[i] = 'a';
	ret = ioctl(fd, VND_IOC_LINK, &vil);
	assert(ret == -1);
	assert(vil.vil_errno == VND_E_BADNAME);

	viu.viu_errno = 0;
	ret = ioctl(fd, VND_IOC_UNLINK, &viu);
	assert(ret == -1);
	assert(viu.viu_errno == VND_E_NOTLINKED);

	assert(close(fd) == 0);

	return (0);
}