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 #include <regex.h> 27 #include <devfsadm.h> 28 #include <stdio.h> 29 #include <strings.h> 30 #include <stdlib.h> 31 #include <limits.h> 32 #include <sys/privcmd_impl.h> 33 #include <sys/domcaps_impl.h> 34 #include <sys/balloon.h> 35 36 /* 37 * Handle miscellaneous children of xendev 38 */ 39 static int devxen(di_minor_t, di_node_t); 40 static int xdt(di_minor_t minor, di_node_t node); 41 42 static devfsadm_create_t xen_cbt[] = { 43 { "xendev", DDI_PSEUDO, "xenbus", 44 TYPE_EXACT | DRV_EXACT, ILEVEL_0, devxen, 45 }, 46 { "xendev", DDI_PSEUDO, PRIVCMD_DRIVER_NAME, 47 TYPE_EXACT | DRV_EXACT, ILEVEL_0, devxen, 48 }, 49 { "xendev", DDI_PSEUDO, "evtchn", 50 TYPE_EXACT | DRV_EXACT, ILEVEL_0, devxen, 51 }, 52 { "xendev", DDI_PSEUDO, DOMCAPS_DRIVER_NAME, 53 TYPE_EXACT | DRV_EXACT, ILEVEL_0, devxen, 54 }, 55 { "xendev", DDI_PSEUDO, BALLOON_DRIVER_NAME, 56 TYPE_EXACT | DRV_EXACT, ILEVEL_0, devxen, 57 }, 58 { "pseudo", DDI_PSEUDO, "xdt", 59 TYPE_EXACT | DRV_EXACT, ILEVEL_0, xdt 60 }, 61 }; 62 63 DEVFSADM_CREATE_INIT_V0(xen_cbt); 64 65 static devfsadm_remove_t xen_remove_cbt[] = { 66 { "xendev", "^" "xen/xenbus" "$", RM_ALWAYS | RM_PRE | RM_HOT, 67 ILEVEL_0, devfsadm_rm_all 68 }, 69 { "xendev", "^" PRIVCMD_PATHNAME "$", RM_ALWAYS | RM_PRE | RM_HOT, 70 ILEVEL_0, devfsadm_rm_all 71 }, 72 { "xendev", "^" "xen/evtchn" "$", RM_ALWAYS | RM_PRE | RM_HOT, 73 ILEVEL_0, devfsadm_rm_all 74 }, 75 { "xendev", "^" DOMCAPS_PATHNAME "$", RM_ALWAYS | RM_PRE | RM_HOT, 76 ILEVEL_0, devfsadm_rm_all 77 }, 78 { "xendev", "^" BALLOON_PATHNAME "$", RM_ALWAYS | RM_PRE | RM_HOT, 79 ILEVEL_0, devfsadm_rm_all 80 }, 81 }; 82 83 DEVFSADM_REMOVE_INIT_V0(xen_remove_cbt); 84 85 /* 86 * /dev/xen/<foo> -> /devices/xendev/<whatever>:<foo> 87 */ 88 static int 89 devxen(di_minor_t minor, di_node_t node) 90 { 91 char buf[256]; 92 93 (void) snprintf(buf, sizeof (buf), "xen/%s", di_minor_name(minor)); 94 (void) devfsadm_mklink(buf, node, minor, 0); 95 96 return (DEVFSADM_CONTINUE); 97 } 98 99 static int 100 xdt(di_minor_t minor, di_node_t node) 101 { 102 char *mname = di_minor_name(minor); 103 char path[MAXPATHLEN]; 104 105 (void) snprintf(path, sizeof (path), "dtrace/provider/%s", mname); 106 (void) devfsadm_mklink(path, node, minor, 0); 107 108 return (DEVFSADM_CONTINUE); 109 } 110