1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #pragma ident "%Z%%M% %I% %E% SMI" 27 28 #include <regex.h> 29 #include <devfsadm.h> 30 #include <stdio.h> 31 #include <strings.h> 32 #include <stdlib.h> 33 #include <limits.h> 34 #include <sys/privcmd_impl.h> 35 #include <sys/domcaps_impl.h> 36 #include <sys/balloon.h> 37 38 /* 39 * Handle miscellaneous children of xendev 40 */ 41 static int devxen(di_minor_t, di_node_t); 42 static int xdt(di_minor_t minor, di_node_t node); 43 44 static devfsadm_create_t xen_cbt[] = { 45 { "xendev", DDI_PSEUDO, "xenbus", 46 TYPE_EXACT | DRV_EXACT, ILEVEL_0, devxen, 47 }, 48 { "xendev", DDI_PSEUDO, PRIVCMD_DRIVER_NAME, 49 TYPE_EXACT | DRV_EXACT, ILEVEL_0, devxen, 50 }, 51 { "xendev", DDI_PSEUDO, "evtchn", 52 TYPE_EXACT | DRV_EXACT, ILEVEL_0, devxen, 53 }, 54 { "xendev", DDI_PSEUDO, DOMCAPS_DRIVER_NAME, 55 TYPE_EXACT | DRV_EXACT, ILEVEL_0, devxen, 56 }, 57 { "xendev", DDI_PSEUDO, BALLOON_DRIVER_NAME, 58 TYPE_EXACT | DRV_EXACT, ILEVEL_0, devxen, 59 }, 60 { "pseudo", DDI_PSEUDO, "xdt", 61 TYPE_EXACT | DRV_EXACT, ILEVEL_0, xdt 62 }, 63 }; 64 65 DEVFSADM_CREATE_INIT_V0(xen_cbt); 66 67 static devfsadm_remove_t xen_remove_cbt[] = { 68 { "xendev", "^" "xen/xenbus" "$", RM_ALWAYS | RM_PRE | RM_HOT, 69 ILEVEL_0, devfsadm_rm_all 70 }, 71 { "xendev", "^" PRIVCMD_PATHNAME "$", RM_ALWAYS | RM_PRE | RM_HOT, 72 ILEVEL_0, devfsadm_rm_all 73 }, 74 { "xendev", "^" "xen/evtchn" "$", RM_ALWAYS | RM_PRE | RM_HOT, 75 ILEVEL_0, devfsadm_rm_all 76 }, 77 { "xendev", "^" DOMCAPS_PATHNAME "$", RM_ALWAYS | RM_PRE | RM_HOT, 78 ILEVEL_0, devfsadm_rm_all 79 }, 80 { "xendev", "^" BALLOON_PATHNAME "$", RM_ALWAYS | RM_PRE | RM_HOT, 81 ILEVEL_0, devfsadm_rm_all 82 }, 83 }; 84 85 DEVFSADM_REMOVE_INIT_V0(xen_remove_cbt); 86 87 /* 88 * /dev/xen/<foo> -> /devices/xendev/<whatever>:<foo> 89 */ 90 static int 91 devxen(di_minor_t minor, di_node_t node) 92 { 93 char buf[256]; 94 95 (void) snprintf(buf, sizeof (buf), "xen/%s", di_minor_name(minor)); 96 (void) devfsadm_mklink(buf, node, minor, 0); 97 98 return (DEVFSADM_CONTINUE); 99 } 100 101 static int 102 xdt(di_minor_t minor, di_node_t node) 103 { 104 char *mname = di_minor_name(minor); 105 char path[MAXPATHLEN]; 106 107 (void) snprintf(path, sizeof (path), "dtrace/provider/%s", mname); 108 (void) devfsadm_mklink(path, node, minor, 0); 109 110 return (DEVFSADM_CONTINUE); 111 } 112