/* * 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. */ /* * Try to create two devices with the same link name. */ #include #include #include #include #include #include #include #include #include #define VND_PATH "/dev/vnd/ctl" int main(int argc, const char *argv[]) { int fd, fd2, ret; vnd_ioc_attach_t via; vnd_ioc_link_t vil; vnd_ioc_unlink_t viu; if (argc < 3) { (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); fd2 = open(VND_PATH, O_RDWR); assert(fd2 > 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); (void) strlcpy(via.via_name, argv[2], VND_NAMELEN); via.via_zoneid = 0; via.via_errno = 0; ret = ioctl(fd2, VND_IOC_ATTACH, &via); assert(ret == 0); assert(via.via_errno == 0); (void) strlcpy(vil.vil_name, "dup", VND_NAMELEN); vil.vil_errno = 0; ret = ioctl(fd, VND_IOC_LINK, &vil); assert(ret == 0); assert(vil.vil_errno == 0); (void) strlcpy(vil.vil_name, "dup", VND_NAMELEN); vil.vil_errno = 0; ret = ioctl(fd2, VND_IOC_LINK, &vil); assert(ret == -1); assert(vil.vil_errno == VND_E_LINKEXISTS); viu.viu_errno = 0; ret = ioctl(fd, VND_IOC_UNLINK, &viu); assert(ret == 0); assert(viu.viu_errno == 0); assert(close(fd) == 0); return (0); }