| 1 | /* $NetBSD: init_sysctl_base.c,v 1.7 2015/08/25 14:52:31 pooka Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 2003, 2007, 2008, 2009 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Andrew Brown, and by Andrew Doran. |
| 9 | * |
| 10 | * Redistribution and use in source and binary forms, with or without |
| 11 | * modification, are permitted provided that the following conditions |
| 12 | * are met: |
| 13 | * 1. Redistributions of source code must retain the above copyright |
| 14 | * notice, this list of conditions and the following disclaimer. |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright |
| 16 | * notice, this list of conditions and the following disclaimer in the |
| 17 | * documentation and/or other materials provided with the distribution. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
| 20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| 21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
| 23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | * POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #include <sys/cdefs.h> |
| 33 | __KERNEL_RCSID(0, "$NetBSD: init_sysctl_base.c,v 1.7 2015/08/25 14:52:31 pooka Exp $" ); |
| 34 | |
| 35 | #include <sys/types.h> |
| 36 | #include <sys/param.h> |
| 37 | #include <sys/sysctl.h> |
| 38 | #include <sys/cpu.h> |
| 39 | #include <sys/kernel.h> |
| 40 | #include <sys/disklabel.h> |
| 41 | |
| 42 | static int sysctl_setlen(SYSCTLFN_PROTO); |
| 43 | |
| 44 | /* |
| 45 | * sets up the base nodes... |
| 46 | */ |
| 47 | void |
| 48 | sysctl_basenode_init(void) |
| 49 | { |
| 50 | |
| 51 | sysctl_createv(NULL, 0, NULL, NULL, |
| 52 | CTLFLAG_PERMANENT, |
| 53 | CTLTYPE_NODE, "kern" , |
| 54 | SYSCTL_DESCR("High kernel" ), |
| 55 | NULL, 0, NULL, 0, |
| 56 | CTL_KERN, CTL_EOL); |
| 57 | sysctl_createv(NULL, 0, NULL, NULL, |
| 58 | CTLFLAG_PERMANENT, |
| 59 | CTLTYPE_NODE, "vm" , |
| 60 | SYSCTL_DESCR("Virtual memory" ), |
| 61 | NULL, 0, NULL, 0, |
| 62 | CTL_VM, CTL_EOL); |
| 63 | sysctl_createv(NULL, 0, NULL, NULL, |
| 64 | CTLFLAG_PERMANENT, |
| 65 | CTLTYPE_NODE, "vfs" , |
| 66 | SYSCTL_DESCR("Filesystem" ), |
| 67 | NULL, 0, NULL, 0, |
| 68 | CTL_VFS, CTL_EOL); |
| 69 | sysctl_createv(NULL, 0, NULL, NULL, |
| 70 | CTLFLAG_PERMANENT, |
| 71 | CTLTYPE_NODE, "net" , |
| 72 | SYSCTL_DESCR("Networking" ), |
| 73 | NULL, 0, NULL, 0, |
| 74 | CTL_NET, CTL_EOL); |
| 75 | sysctl_createv(NULL, 0, NULL, NULL, |
| 76 | CTLFLAG_PERMANENT, |
| 77 | CTLTYPE_NODE, "debug" , |
| 78 | SYSCTL_DESCR("Debugging" ), |
| 79 | NULL, 0, NULL, 0, |
| 80 | CTL_DEBUG, CTL_EOL); |
| 81 | sysctl_createv(NULL, 0, NULL, NULL, |
| 82 | CTLFLAG_PERMANENT, |
| 83 | CTLTYPE_NODE, "hw" , |
| 84 | SYSCTL_DESCR("Generic CPU, I/O" ), |
| 85 | NULL, 0, NULL, 0, |
| 86 | CTL_HW, CTL_EOL); |
| 87 | sysctl_createv(NULL, 0, NULL, NULL, |
| 88 | CTLFLAG_PERMANENT, |
| 89 | CTLTYPE_NODE, "machdep" , |
| 90 | SYSCTL_DESCR("Machine dependent" ), |
| 91 | NULL, 0, NULL, 0, |
| 92 | CTL_MACHDEP, CTL_EOL); |
| 93 | /* |
| 94 | * this node is inserted so that the sysctl nodes in libc can |
| 95 | * operate. |
| 96 | */ |
| 97 | sysctl_createv(NULL, 0, NULL, NULL, |
| 98 | CTLFLAG_PERMANENT, |
| 99 | CTLTYPE_NODE, "user" , |
| 100 | SYSCTL_DESCR("User-level" ), |
| 101 | NULL, 0, NULL, 0, |
| 102 | CTL_USER, CTL_EOL); |
| 103 | sysctl_createv(NULL, 0, NULL, NULL, |
| 104 | CTLFLAG_PERMANENT, |
| 105 | CTLTYPE_NODE, "ddb" , |
| 106 | SYSCTL_DESCR("In-kernel debugger" ), |
| 107 | NULL, 0, NULL, 0, |
| 108 | CTL_DDB, CTL_EOL); |
| 109 | sysctl_createv(NULL, 0, NULL, NULL, |
| 110 | CTLFLAG_PERMANENT, |
| 111 | CTLTYPE_NODE, "proc" , |
| 112 | SYSCTL_DESCR("Per-process" ), |
| 113 | NULL, 0, NULL, 0, |
| 114 | CTL_PROC, CTL_EOL); |
| 115 | sysctl_createv(NULL, 0, NULL, NULL, |
| 116 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 117 | CTLTYPE_NODE, "vendor" , |
| 118 | SYSCTL_DESCR("Vendor specific" ), |
| 119 | NULL, 0, NULL, 0, |
| 120 | CTL_VENDOR, CTL_EOL); |
| 121 | sysctl_createv(NULL, 0, NULL, NULL, |
| 122 | CTLFLAG_PERMANENT, |
| 123 | CTLTYPE_NODE, "emul" , |
| 124 | SYSCTL_DESCR("Emulation settings" ), |
| 125 | NULL, 0, NULL, 0, |
| 126 | CTL_EMUL, CTL_EOL); |
| 127 | sysctl_createv(NULL, 0, NULL, NULL, |
| 128 | CTLFLAG_PERMANENT, |
| 129 | CTLTYPE_NODE, "security" , |
| 130 | SYSCTL_DESCR("Security" ), |
| 131 | NULL, 0, NULL, 0, |
| 132 | CTL_SECURITY, CTL_EOL); |
| 133 | } |
| 134 | |
| 135 | /* |
| 136 | * now add some nodes which both rump kernel and standard |
| 137 | * NetBSD both need, as rump cannot use sys/kern/init_sysctl.c |
| 138 | */ |
| 139 | SYSCTL_SETUP(sysctl_kernbase_setup, "sysctl kern subtree base setup" ) |
| 140 | { |
| 141 | |
| 142 | sysctl_createv(clog, 0, NULL, NULL, |
| 143 | CTLFLAG_PERMANENT, |
| 144 | CTLTYPE_STRING, "ostype" , |
| 145 | SYSCTL_DESCR("Operating system type" ), |
| 146 | NULL, 0, __UNCONST(&ostype), 0, |
| 147 | CTL_KERN, KERN_OSTYPE, CTL_EOL); |
| 148 | sysctl_createv(clog, 0, NULL, NULL, |
| 149 | CTLFLAG_PERMANENT, |
| 150 | CTLTYPE_STRING, "osrelease" , |
| 151 | SYSCTL_DESCR("Operating system release" ), |
| 152 | NULL, 0, __UNCONST(&osrelease), 0, |
| 153 | CTL_KERN, KERN_OSRELEASE, CTL_EOL); |
| 154 | sysctl_createv(clog, 0, NULL, NULL, |
| 155 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
| 156 | CTLTYPE_INT, "osrevision" , |
| 157 | SYSCTL_DESCR("Operating system revision" ), |
| 158 | NULL, __NetBSD_Version__, NULL, 0, |
| 159 | CTL_KERN, KERN_OSREV, CTL_EOL); |
| 160 | sysctl_createv(clog, 0, NULL, NULL, |
| 161 | CTLFLAG_PERMANENT, |
| 162 | CTLTYPE_STRING, "version" , |
| 163 | SYSCTL_DESCR("Kernel version" ), |
| 164 | NULL, 0, __UNCONST(&version), 0, |
| 165 | CTL_KERN, KERN_VERSION, CTL_EOL); |
| 166 | sysctl_createv(clog, 0, NULL, NULL, |
| 167 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 168 | CTLTYPE_STRING, "hostname" , |
| 169 | SYSCTL_DESCR("System hostname" ), |
| 170 | sysctl_setlen, 0, hostname, MAXHOSTNAMELEN, |
| 171 | CTL_KERN, KERN_HOSTNAME, CTL_EOL); |
| 172 | sysctl_createv(clog, 0, NULL, NULL, |
| 173 | CTLFLAG_PERMANENT|CTLFLAG_READWRITE, |
| 174 | CTLTYPE_STRING, "domainname" , |
| 175 | SYSCTL_DESCR("YP domain name" ), |
| 176 | sysctl_setlen, 0, domainname, MAXHOSTNAMELEN, |
| 177 | CTL_KERN, KERN_DOMAINNAME, CTL_EOL); |
| 178 | sysctl_createv(clog, 0, NULL, NULL, |
| 179 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
| 180 | CTLTYPE_INT, "rawpartition" , |
| 181 | SYSCTL_DESCR("Raw partition of a disk" ), |
| 182 | NULL, RAW_PART, NULL, 0, |
| 183 | CTL_KERN, KERN_RAWPARTITION, CTL_EOL); |
| 184 | } |
| 185 | |
| 186 | SYSCTL_SETUP(sysctl_hwbase_setup, "sysctl hw subtree base setup" ) |
| 187 | { |
| 188 | u_int u; |
| 189 | u_quad_t q; |
| 190 | const char *model = cpu_getmodel(); |
| 191 | |
| 192 | sysctl_createv(clog, 0, NULL, NULL, |
| 193 | CTLFLAG_PERMANENT, |
| 194 | CTLTYPE_STRING, "model" , |
| 195 | SYSCTL_DESCR("Machine model" ), |
| 196 | NULL, 0, __UNCONST(model), 0, |
| 197 | CTL_HW, HW_MODEL, CTL_EOL); |
| 198 | sysctl_createv(clog, 0, NULL, NULL, |
| 199 | CTLFLAG_PERMANENT, |
| 200 | CTLTYPE_STRING, "machine" , |
| 201 | SYSCTL_DESCR("Machine class" ), |
| 202 | NULL, 0, machine, 0, |
| 203 | CTL_HW, HW_MACHINE, CTL_EOL); |
| 204 | sysctl_createv(clog, 0, NULL, NULL, |
| 205 | CTLFLAG_PERMANENT, |
| 206 | CTLTYPE_STRING, "machine_arch" , |
| 207 | SYSCTL_DESCR("Machine CPU class" ), |
| 208 | NULL, 0, machine_arch, 0, |
| 209 | CTL_HW, HW_MACHINE_ARCH, CTL_EOL); |
| 210 | sysctl_createv(clog, 0, NULL, NULL, |
| 211 | CTLFLAG_PERMANENT, |
| 212 | CTLTYPE_INT, "ncpu" , |
| 213 | SYSCTL_DESCR("Number of CPUs configured" ), |
| 214 | NULL, 0, &ncpu, 0, |
| 215 | CTL_HW, HW_NCPU, CTL_EOL); |
| 216 | sysctl_createv(clog, 0, NULL, NULL, |
| 217 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
| 218 | CTLTYPE_INT, "byteorder" , |
| 219 | SYSCTL_DESCR("System byte order" ), |
| 220 | NULL, BYTE_ORDER, NULL, 0, |
| 221 | CTL_HW, HW_BYTEORDER, CTL_EOL); |
| 222 | u = ((u_int)physmem > (UINT_MAX / PAGE_SIZE)) ? |
| 223 | UINT_MAX : physmem * PAGE_SIZE; |
| 224 | sysctl_createv(clog, 0, NULL, NULL, |
| 225 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
| 226 | CTLTYPE_INT, "physmem" , |
| 227 | SYSCTL_DESCR("Bytes of physical memory" ), |
| 228 | NULL, u, NULL, 0, |
| 229 | CTL_HW, HW_PHYSMEM, CTL_EOL); |
| 230 | sysctl_createv(clog, 0, NULL, NULL, |
| 231 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
| 232 | CTLTYPE_INT, "pagesize" , |
| 233 | SYSCTL_DESCR("Software page size" ), |
| 234 | NULL, PAGE_SIZE, NULL, 0, |
| 235 | CTL_HW, HW_PAGESIZE, CTL_EOL); |
| 236 | sysctl_createv(clog, 0, NULL, NULL, |
| 237 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
| 238 | CTLTYPE_INT, "alignbytes" , |
| 239 | SYSCTL_DESCR("Alignment constraint for all possible " |
| 240 | "data types" ), |
| 241 | NULL, ALIGNBYTES, NULL, 0, |
| 242 | CTL_HW, HW_ALIGNBYTES, CTL_EOL); |
| 243 | q = (u_quad_t)physmem * PAGE_SIZE; |
| 244 | sysctl_createv(clog, 0, NULL, NULL, |
| 245 | CTLFLAG_PERMANENT|CTLFLAG_IMMEDIATE, |
| 246 | CTLTYPE_QUAD, "physmem64" , |
| 247 | SYSCTL_DESCR("Bytes of physical memory" ), |
| 248 | NULL, q, NULL, 0, |
| 249 | CTL_HW, HW_PHYSMEM64, CTL_EOL); |
| 250 | sysctl_createv(clog, 0, NULL, NULL, |
| 251 | CTLFLAG_PERMANENT, |
| 252 | CTLTYPE_INT, "ncpuonline" , |
| 253 | SYSCTL_DESCR("Number of CPUs online" ), |
| 254 | NULL, 0, &ncpuonline, 0, |
| 255 | CTL_HW, HW_NCPUONLINE, CTL_EOL); |
| 256 | } |
| 257 | |
| 258 | /* |
| 259 | * sysctl helper function for kern.hostname and kern.domainnname. |
| 260 | * resets the relevant recorded length when the underlying name is |
| 261 | * changed. |
| 262 | */ |
| 263 | static int |
| 264 | sysctl_setlen(SYSCTLFN_ARGS) |
| 265 | { |
| 266 | int error; |
| 267 | |
| 268 | error = sysctl_lookup(SYSCTLFN_CALL(rnode)); |
| 269 | if (error || newp == NULL) |
| 270 | return (error); |
| 271 | |
| 272 | switch (rnode->sysctl_num) { |
| 273 | case KERN_HOSTNAME: |
| 274 | hostnamelen = strlen((const char*)rnode->sysctl_data); |
| 275 | break; |
| 276 | case KERN_DOMAINNAME: |
| 277 | domainnamelen = strlen((const char*)rnode->sysctl_data); |
| 278 | break; |
| 279 | } |
| 280 | |
| 281 | return (0); |
| 282 | } |
| 283 | |