dklist.c revision 1.3.2.2
1 1.3.2.2 he /* $NetBSD: dklist.c,v 1.3.2.2 2001/12/09 19:36:56 he Exp $ */ 2 1.3.2.2 he 3 1.3.2.2 he /*- 4 1.3.2.2 he * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 1.3.2.2 he * All rights reserved. 6 1.3.2.2 he * 7 1.3.2.2 he * This code is derived from software contributed to The NetBSD Foundation 8 1.3.2.2 he * by Andrew Doran. 9 1.3.2.2 he * 10 1.3.2.2 he * Redistribution and use in source and binary forms, with or without 11 1.3.2.2 he * modification, are permitted provided that the following conditions 12 1.3.2.2 he * are met: 13 1.3.2.2 he * 1. Redistributions of source code must retain the above copyright 14 1.3.2.2 he * notice, this list of conditions and the following disclaimer. 15 1.3.2.2 he * 2. Redistributions in binary form must reproduce the above copyright 16 1.3.2.2 he * notice, this list of conditions and the following disclaimer in the 17 1.3.2.2 he * documentation and/or other materials provided with the distribution. 18 1.3.2.2 he * 3. All advertising materials mentioning features or use of this software 19 1.3.2.2 he * must display the following acknowledgement: 20 1.3.2.2 he * This product includes software developed by the NetBSD 21 1.3.2.2 he * Foundation, Inc. and its contributors. 22 1.3.2.2 he * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.3.2.2 he * contributors may be used to endorse or promote products derived 24 1.3.2.2 he * from this software without specific prior written permission. 25 1.3.2.2 he * 26 1.3.2.2 he * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.3.2.2 he * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.3.2.2 he * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.3.2.2 he * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.3.2.2 he * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.3.2.2 he * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.3.2.2 he * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.3.2.2 he * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.3.2.2 he * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.3.2.2 he * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.3.2.2 he * POSSIBILITY OF SUCH DAMAGE. 37 1.3.2.2 he */ 38 1.3.2.2 he 39 1.3.2.2 he /* 40 1.3.2.2 he * Copyright (c) 1996 John M. Vinopal 41 1.3.2.2 he * All rights reserved. 42 1.3.2.2 he * 43 1.3.2.2 he * Redistribution and use in source and binary forms, with or without 44 1.3.2.2 he * modification, are permitted provided that the following conditions 45 1.3.2.2 he * are met: 46 1.3.2.2 he * 1. Redistributions of source code must retain the above copyright 47 1.3.2.2 he * notice, this list of conditions and the following disclaimer. 48 1.3.2.2 he * 2. Redistributions in binary form must reproduce the above copyright 49 1.3.2.2 he * notice, this list of conditions and the following disclaimer in the 50 1.3.2.2 he * documentation and/or other materials provided with the distribution. 51 1.3.2.2 he * 3. All advertising materials mentioning features or use of this software 52 1.3.2.2 he * must display the following acknowledgement: 53 1.3.2.2 he * This product includes software developed for the NetBSD Project 54 1.3.2.2 he * by John M. Vinopal. 55 1.3.2.2 he * 4. The name of the author may not be used to endorse or promote products 56 1.3.2.2 he * derived from this software without specific prior written permission. 57 1.3.2.2 he * 58 1.3.2.2 he * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 59 1.3.2.2 he * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 60 1.3.2.2 he * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 61 1.3.2.2 he * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 62 1.3.2.2 he * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 63 1.3.2.2 he * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 64 1.3.2.2 he * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 65 1.3.2.2 he * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 66 1.3.2.2 he * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 1.3.2.2 he * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 1.3.2.2 he * SUCH DAMAGE. 69 1.3.2.2 he */ 70 1.3.2.2 he 71 1.3.2.2 he #ifndef lint 72 1.3.2.2 he #include <sys/cdefs.h> 73 1.3.2.2 he __RCSID("$NetBSD: dklist.c,v 1.3.2.2 2001/12/09 19:36:56 he Exp $"); 74 1.3.2.2 he #endif /* not lint */ 75 1.3.2.2 he 76 1.3.2.2 he #include <sys/types.h> 77 1.3.2.2 he #include <sys/disk.h> 78 1.3.2.2 he #include <sys/ioctl.h> 79 1.3.2.2 he 80 1.3.2.2 he #include <dev/ic/mlxreg.h> 81 1.3.2.2 he #include <dev/ic/mlxio.h> 82 1.3.2.2 he 83 1.3.2.2 he #include <err.h> 84 1.3.2.2 he #include <fcntl.h> 85 1.3.2.2 he #include <kvm.h> 86 1.3.2.2 he #include <limits.h> 87 1.3.2.2 he #include <nlist.h> 88 1.3.2.2 he #include <stdio.h> 89 1.3.2.2 he #include <stdlib.h> 90 1.3.2.2 he #include <string.h> 91 1.3.2.2 he #include <ctype.h> 92 1.3.2.2 he #include <unistd.h> 93 1.3.2.2 he 94 1.3.2.2 he #include "extern.h" 95 1.3.2.2 he 96 1.3.2.2 he static SIMPLEQ_HEAD(, mlx_disk) mlx_disks; 97 1.3.2.2 he 98 1.3.2.2 he static struct nlist namelist[] = { 99 1.3.2.2 he #define X_DISK_COUNT 0 100 1.3.2.2 he { "_disk_count" }, /* number of disks */ 101 1.3.2.2 he #define X_DISKLIST 1 102 1.3.2.2 he { "_disklist" }, /* TAILQ of disks */ 103 1.3.2.2 he { NULL }, 104 1.3.2.2 he }; 105 1.3.2.2 he 106 1.3.2.2 he #define KVM_ERROR(_string) { \ 107 1.3.2.2 he warnx("%s", (_string)); \ 108 1.3.2.2 he errx(1, "%s", kvm_geterr(kd)); \ 109 1.3.2.2 he } 110 1.3.2.2 he 111 1.3.2.2 he /* 112 1.3.2.2 he * Dereference the namelist pointer `v' and fill in the local copy 113 1.3.2.2 he * 'p' which is of size 's'. 114 1.3.2.2 he */ 115 1.3.2.2 he #define deref_nl(kd, v, p, s) \ 116 1.3.2.2 he deref_kptr(kd, (void *)namelist[(v)].n_value, (p), (s)); 117 1.3.2.2 he 118 1.3.2.2 he static void deref_kptr(kvm_t *, void *, void *, size_t); 119 1.3.2.2 he 120 1.3.2.2 he void 121 1.3.2.2 he mlx_disk_init(void) 122 1.3.2.2 he { 123 1.3.2.2 he 124 1.3.2.2 he SIMPLEQ_INIT(&mlx_disks); 125 1.3.2.2 he } 126 1.3.2.2 he 127 1.3.2.2 he int 128 1.3.2.2 he mlx_disk_empty(void) 129 1.3.2.2 he { 130 1.3.2.2 he 131 1.3.2.2 he return (SIMPLEQ_FIRST(&mlx_disks) == NULL); 132 1.3.2.2 he } 133 1.3.2.2 he 134 1.3.2.2 he void 135 1.3.2.2 he mlx_disk_iterate(void (*func)(struct mlx_disk *)) 136 1.3.2.2 he { 137 1.3.2.2 he struct mlx_disk *md; 138 1.3.2.2 he 139 1.3.2.2 he SIMPLEQ_FOREACH(md, &mlx_disks, chain) 140 1.3.2.2 he (*func)(md); 141 1.3.2.2 he } 142 1.3.2.2 he 143 1.3.2.2 he static int 144 1.3.2.2 he mlx_disk_add0(const char *name) 145 1.3.2.2 he { 146 1.3.2.2 he struct mlx_disk *md; 147 1.3.2.2 he int unit; 148 1.3.2.2 he 149 1.3.2.2 he if (name[0] != 'l' || name[1] != 'd' || !isdigit(name[2])) 150 1.3.2.2 he return (-1); 151 1.3.2.2 he 152 1.3.2.2 he SIMPLEQ_FOREACH(md, &mlx_disks, chain) 153 1.3.2.2 he if (strcmp(md->name, name) == 0) 154 1.3.2.2 he return (0); 155 1.3.2.2 he 156 1.3.2.2 he unit = atoi(name + 2); 157 1.3.2.2 he if (ioctl(mlxfd, MLX_GET_SYSDRIVE, &unit) < 0) 158 1.3.2.2 he return (-1); 159 1.3.2.2 he 160 1.3.2.2 he if ((md = malloc(sizeof(*md))) == NULL) 161 1.3.2.2 he err(EXIT_FAILURE, "mlx_disk_add()"); 162 1.3.2.2 he 163 1.3.2.2 he strlcpy(md->name, name, sizeof(md->name)); 164 1.3.2.2 he md->hwunit = unit; 165 1.3.2.2 he SIMPLEQ_INSERT_TAIL(&mlx_disks, md, chain); 166 1.3.2.2 he return (0); 167 1.3.2.2 he } 168 1.3.2.2 he 169 1.3.2.2 he void 170 1.3.2.2 he mlx_disk_add(const char *name) 171 1.3.2.2 he { 172 1.3.2.2 he 173 1.3.2.2 he if (mlx_disk_add0(name) != 0) 174 1.3.2.2 he errx(EXIT_FAILURE, "%s is not attached to %s", name, mlxname); 175 1.3.2.2 he } 176 1.3.2.2 he 177 1.3.2.2 he void 178 1.3.2.2 he mlx_disk_add_all(void) 179 1.3.2.2 he { 180 1.3.2.2 he struct disklist_head disk_head; 181 1.3.2.2 he struct disk cur_disk, *dk; 182 1.3.2.2 he char errbuf[_POSIX2_LINE_MAX]; 183 1.3.2.2 he char buf[12]; 184 1.3.2.2 he int i, ndrives; 185 1.3.2.2 he kvm_t *kd; 186 1.3.2.2 he 187 1.3.2.2 he /* Open the kernel. */ 188 1.3.2.2 he if ((kd = kvm_openfiles(nlistf, memf, NULL, O_RDONLY, errbuf)) == NULL) 189 1.3.2.2 he errx(1, "kvm_openfiles: %s", errbuf); 190 1.3.2.2 he 191 1.3.2.2 he /* Obtain the namelist symbols from the kernel. */ 192 1.3.2.2 he if (kvm_nlist(kd, namelist)) 193 1.3.2.2 he KVM_ERROR("kvm_nlist failed to read symbols."); 194 1.3.2.2 he 195 1.3.2.2 he /* Get the number of attached drives. */ 196 1.3.2.2 he deref_nl(kd, X_DISK_COUNT, &ndrives, sizeof(ndrives)); 197 1.3.2.2 he 198 1.3.2.2 he if (ndrives < 0) 199 1.3.2.2 he errx(EXIT_FAILURE, "invalid _disk_count %d.", ndrives); 200 1.3.2.2 he if (ndrives == 0) 201 1.3.2.2 he errx(EXIT_FAILURE, "no drives attached."); 202 1.3.2.2 he 203 1.3.2.2 he /* Get a pointer to the first disk. */ 204 1.3.2.2 he deref_nl(kd, X_DISKLIST, &disk_head, sizeof(disk_head)); 205 1.3.2.2 he dk = TAILQ_FIRST(&disk_head); 206 1.3.2.2 he 207 1.3.2.2 he /* Try to add each disk to the list. */ 208 1.3.2.2 he for (i = 0; i < ndrives; i++) { 209 1.3.2.2 he deref_kptr(kd, dk, &cur_disk, sizeof(cur_disk)); 210 1.3.2.2 he deref_kptr(kd, cur_disk.dk_name, buf, sizeof(buf)); 211 1.3.2.2 he mlx_disk_add0(buf); 212 1.3.2.2 he dk = TAILQ_NEXT(&cur_disk, dk_link); 213 1.3.2.2 he } 214 1.3.2.2 he 215 1.3.2.2 he kvm_close(kd); 216 1.3.2.2 he } 217 1.3.2.2 he 218 1.3.2.2 he /* 219 1.3.2.2 he * Dereference the kernel pointer `kptr' and fill in the local copy pointed 220 1.3.2.2 he * to by `ptr'. The storage space must be pre-allocated, and the size of 221 1.3.2.2 he * the copy passed in `len'. 222 1.3.2.2 he */ 223 1.3.2.2 he static void 224 1.3.2.2 he deref_kptr(kvm_t *kd, void *kptr, void *ptr, size_t len) 225 1.3.2.2 he { 226 1.3.2.2 he char buf[128]; 227 1.3.2.2 he 228 1.3.2.2 he if (kvm_read(kd, (u_long)kptr, (char *)ptr, len) != len) { 229 1.3.2.2 he memset(buf, 0, sizeof(buf)); 230 1.3.2.2 he snprintf(buf, sizeof buf, "can't dereference kptr 0x%lx", 231 1.3.2.2 he (u_long)kptr); 232 1.3.2.2 he KVM_ERROR(buf); 233 1.3.2.2 he } 234 1.3.2.2 he } 235
Indexes created Sun Nov 02 07:10:05 GMT 2025