40
41#include "opt_posix.h"
42#include "opt_config.h"
43
44#include <sys/param.h>
45#include <sys/kernel.h>
46#include <sys/sbuf.h>
47#include <sys/systm.h>
48#include <sys/sysctl.h>
49#include <sys/proc.h>
50#include <sys/lock.h>
51#include <sys/mutex.h>
52#include <sys/jail.h>
53#include <sys/smp.h>
54#include <sys/unistd.h>
55
56SYSCTL_NODE(, 0, sysctl, CTLFLAG_RW, 0,
57 "Sysctl internal magic");
58SYSCTL_NODE(, CTL_KERN, kern, CTLFLAG_RW, 0,
59 "High kernel, proc, limits &c");
60SYSCTL_NODE(, CTL_VM, vm, CTLFLAG_RW, 0,
61 "Virtual memory");
62SYSCTL_NODE(, CTL_VFS, vfs, CTLFLAG_RW, 0,
63 "File system");
64SYSCTL_NODE(, CTL_NET, net, CTLFLAG_RW, 0,
65 "Network, (see socket.h)");
66SYSCTL_NODE(, CTL_DEBUG, debug, CTLFLAG_RW, 0,
67 "Debugging");
68SYSCTL_NODE(_debug, OID_AUTO, sizeof, CTLFLAG_RW, 0,
69 "Sizeof various things");
70SYSCTL_NODE(, CTL_HW, hw, CTLFLAG_RW, 0,
71 "hardware");
72SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW, 0,
73 "machine dependent");
74SYSCTL_NODE(, CTL_USER, user, CTLFLAG_RW, 0,
75 "user-level");
76SYSCTL_NODE(, CTL_P1003_1B, p1003_1b, CTLFLAG_RW, 0,
77 "p1003_1b, (see p1003_1b.h)");
78
79SYSCTL_NODE(, OID_AUTO, compat, CTLFLAG_RW, 0,
80 "Compatibility code");
81SYSCTL_NODE(, OID_AUTO, security, CTLFLAG_RW, 0,
82 "Security");
83#ifdef REGRESSION
84SYSCTL_NODE(, OID_AUTO, regression, CTLFLAG_RW, 0,
85 "Regression test MIB");
86#endif
87
88SYSCTL_STRING(_kern, OID_AUTO, ident, CTLFLAG_RD,
89 kern_ident, 0, "Kernel identifier");
90
91SYSCTL_STRING(_kern, KERN_OSRELEASE, osrelease, CTLFLAG_RD,
92 osrelease, 0, "Operating system release");
93
94SYSCTL_INT(_kern, KERN_OSREV, osrevision, CTLFLAG_RD,
95 0, BSD, "Operating system revision");
96
97SYSCTL_STRING(_kern, KERN_VERSION, version, CTLFLAG_RD,
98 version, 0, "Kernel version");
99
100SYSCTL_STRING(_kern, KERN_OSTYPE, ostype, CTLFLAG_RD,
101 ostype, 0, "Operating system type");
102
103/*
104 * NOTICE: The *userland* release date is available in
105 * /usr/include/osreldate.h
106 */
107extern int osreldate;
108SYSCTL_INT(_kern, KERN_OSRELDATE, osreldate, CTLFLAG_RD,
109 &osreldate, 0, "Kernel release date");
110
111SYSCTL_INT(_kern, KERN_MAXPROC, maxproc, CTLFLAG_RDTUN,
112 &maxproc, 0, "Maximum number of processes");
113
114SYSCTL_INT(_kern, KERN_MAXPROCPERUID, maxprocperuid, CTLFLAG_RW,
115 &maxprocperuid, 0, "Maximum processes allowed per userid");
116
117SYSCTL_INT(_kern, OID_AUTO, maxusers, CTLFLAG_RDTUN,
118 &maxusers, 0, "Hint for kernel tuning");
119
120SYSCTL_INT(_kern, KERN_ARGMAX, argmax, CTLFLAG_RD,
121 0, ARG_MAX, "Maximum bytes of argument to execve(2)");
122
123SYSCTL_INT(_kern, KERN_POSIX1, posix1version, CTLFLAG_RD,
124 0, _POSIX_VERSION, "Version of POSIX attempting to comply to");
125
126SYSCTL_INT(_kern, KERN_NGROUPS, ngroups, CTLFLAG_RD,
127 0, NGROUPS_MAX, "Maximum number of groups a user can belong to");
128
129SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control, CTLFLAG_RD,
130 0, 1, "Whether job control is available");
131
132#ifdef _POSIX_SAVED_IDS
133SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD,
134 0, 1, "Whether saved set-group/user ID is available");
135#else
136SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD,
137 0, 0, "Whether saved set-group/user ID is available");
138#endif
139
140char kernelname[MAXPATHLEN] = "/kernel"; /* XXX bloat */
141
142SYSCTL_STRING(_kern, KERN_BOOTFILE, bootfile, CTLFLAG_RW,
143 kernelname, sizeof kernelname, "Name of kernel file booted");
144
145SYSCTL_INT(_hw, HW_NCPU, ncpu, CTLFLAG_RD,
146 &mp_ncpus, 0, "Number of active CPUs");
147
148SYSCTL_INT(_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD,
149 0, BYTE_ORDER, "System byte order");
150
151SYSCTL_INT(_hw, HW_PAGESIZE, pagesize, CTLFLAG_RD,
152 0, PAGE_SIZE, "System memory page size");
153
154static int
| 40
41#include "opt_posix.h"
42#include "opt_config.h"
43
44#include <sys/param.h>
45#include <sys/kernel.h>
46#include <sys/sbuf.h>
47#include <sys/systm.h>
48#include <sys/sysctl.h>
49#include <sys/proc.h>
50#include <sys/lock.h>
51#include <sys/mutex.h>
52#include <sys/jail.h>
53#include <sys/smp.h>
54#include <sys/unistd.h>
55
56SYSCTL_NODE(, 0, sysctl, CTLFLAG_RW, 0,
57 "Sysctl internal magic");
58SYSCTL_NODE(, CTL_KERN, kern, CTLFLAG_RW, 0,
59 "High kernel, proc, limits &c");
60SYSCTL_NODE(, CTL_VM, vm, CTLFLAG_RW, 0,
61 "Virtual memory");
62SYSCTL_NODE(, CTL_VFS, vfs, CTLFLAG_RW, 0,
63 "File system");
64SYSCTL_NODE(, CTL_NET, net, CTLFLAG_RW, 0,
65 "Network, (see socket.h)");
66SYSCTL_NODE(, CTL_DEBUG, debug, CTLFLAG_RW, 0,
67 "Debugging");
68SYSCTL_NODE(_debug, OID_AUTO, sizeof, CTLFLAG_RW, 0,
69 "Sizeof various things");
70SYSCTL_NODE(, CTL_HW, hw, CTLFLAG_RW, 0,
71 "hardware");
72SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW, 0,
73 "machine dependent");
74SYSCTL_NODE(, CTL_USER, user, CTLFLAG_RW, 0,
75 "user-level");
76SYSCTL_NODE(, CTL_P1003_1B, p1003_1b, CTLFLAG_RW, 0,
77 "p1003_1b, (see p1003_1b.h)");
78
79SYSCTL_NODE(, OID_AUTO, compat, CTLFLAG_RW, 0,
80 "Compatibility code");
81SYSCTL_NODE(, OID_AUTO, security, CTLFLAG_RW, 0,
82 "Security");
83#ifdef REGRESSION
84SYSCTL_NODE(, OID_AUTO, regression, CTLFLAG_RW, 0,
85 "Regression test MIB");
86#endif
87
88SYSCTL_STRING(_kern, OID_AUTO, ident, CTLFLAG_RD,
89 kern_ident, 0, "Kernel identifier");
90
91SYSCTL_STRING(_kern, KERN_OSRELEASE, osrelease, CTLFLAG_RD,
92 osrelease, 0, "Operating system release");
93
94SYSCTL_INT(_kern, KERN_OSREV, osrevision, CTLFLAG_RD,
95 0, BSD, "Operating system revision");
96
97SYSCTL_STRING(_kern, KERN_VERSION, version, CTLFLAG_RD,
98 version, 0, "Kernel version");
99
100SYSCTL_STRING(_kern, KERN_OSTYPE, ostype, CTLFLAG_RD,
101 ostype, 0, "Operating system type");
102
103/*
104 * NOTICE: The *userland* release date is available in
105 * /usr/include/osreldate.h
106 */
107extern int osreldate;
108SYSCTL_INT(_kern, KERN_OSRELDATE, osreldate, CTLFLAG_RD,
109 &osreldate, 0, "Kernel release date");
110
111SYSCTL_INT(_kern, KERN_MAXPROC, maxproc, CTLFLAG_RDTUN,
112 &maxproc, 0, "Maximum number of processes");
113
114SYSCTL_INT(_kern, KERN_MAXPROCPERUID, maxprocperuid, CTLFLAG_RW,
115 &maxprocperuid, 0, "Maximum processes allowed per userid");
116
117SYSCTL_INT(_kern, OID_AUTO, maxusers, CTLFLAG_RDTUN,
118 &maxusers, 0, "Hint for kernel tuning");
119
120SYSCTL_INT(_kern, KERN_ARGMAX, argmax, CTLFLAG_RD,
121 0, ARG_MAX, "Maximum bytes of argument to execve(2)");
122
123SYSCTL_INT(_kern, KERN_POSIX1, posix1version, CTLFLAG_RD,
124 0, _POSIX_VERSION, "Version of POSIX attempting to comply to");
125
126SYSCTL_INT(_kern, KERN_NGROUPS, ngroups, CTLFLAG_RD,
127 0, NGROUPS_MAX, "Maximum number of groups a user can belong to");
128
129SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control, CTLFLAG_RD,
130 0, 1, "Whether job control is available");
131
132#ifdef _POSIX_SAVED_IDS
133SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD,
134 0, 1, "Whether saved set-group/user ID is available");
135#else
136SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD,
137 0, 0, "Whether saved set-group/user ID is available");
138#endif
139
140char kernelname[MAXPATHLEN] = "/kernel"; /* XXX bloat */
141
142SYSCTL_STRING(_kern, KERN_BOOTFILE, bootfile, CTLFLAG_RW,
143 kernelname, sizeof kernelname, "Name of kernel file booted");
144
145SYSCTL_INT(_hw, HW_NCPU, ncpu, CTLFLAG_RD,
146 &mp_ncpus, 0, "Number of active CPUs");
147
148SYSCTL_INT(_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD,
149 0, BYTE_ORDER, "System byte order");
150
151SYSCTL_INT(_hw, HW_PAGESIZE, pagesize, CTLFLAG_RD,
152 0, PAGE_SIZE, "System memory page size");
153
154static int
|
155sysctl_hw_physmem(SYSCTL_HANDLER_ARGS)
156{
157 u_long val;
158
159 val = ctob(physmem);
160 return (sysctl_handle_long(oidp, &val, 0, req));
161}
162
163SYSCTL_PROC(_hw, HW_PHYSMEM, physmem, CTLTYPE_ULONG | CTLFLAG_RD,
164 0, 0, sysctl_hw_physmem, "LU", "");
165
166static int
167sysctl_hw_realmem(SYSCTL_HANDLER_ARGS)
168{
169 u_long val;
170 val = ctob(realmem);
171 return (sysctl_handle_long(oidp, &val, 0, req));
172}
173SYSCTL_PROC(_hw, HW_REALMEM, realmem, CTLTYPE_ULONG | CTLFLAG_RD,
174 0, 0, sysctl_hw_realmem, "LU", "");
175static int
176sysctl_hw_usermem(SYSCTL_HANDLER_ARGS)
177{
178 u_long val;
179
180 val = ctob(physmem - VMCNT_GET(wire_count));
181 return (sysctl_handle_long(oidp, &val, 0, req));
182}
183
184SYSCTL_PROC(_hw, HW_USERMEM, usermem, CTLTYPE_ULONG | CTLFLAG_RD,
185 0, 0, sysctl_hw_usermem, "LU", "");
186
187SYSCTL_ULONG(_hw, OID_AUTO, availpages, CTLFLAG_RD, &physmem, 0, "");
188
189static char machine_arch[] = MACHINE_ARCH;
190SYSCTL_STRING(_hw, HW_MACHINE_ARCH, machine_arch, CTLFLAG_RD,
191 machine_arch, 0, "System architecture");
192
193char hostname[MAXHOSTNAMELEN];
194
195static int
196sysctl_hostname(SYSCTL_HANDLER_ARGS)
197{
198 struct prison *pr;
199 char tmphostname[MAXHOSTNAMELEN];
200 int error;
201
202 pr = req->td->td_ucred->cr_prison;
203 if (pr != NULL) {
204 if (!jail_set_hostname_allowed && req->newptr)
205 return (EPERM);
206 /*
207 * Process is in jail, so make a local copy of jail
208 * hostname to get/set so we don't have to hold the jail
209 * mutex during the sysctl copyin/copyout activities.
210 */
211 mtx_lock(&pr->pr_mtx);
212 bcopy(pr->pr_host, tmphostname, MAXHOSTNAMELEN);
213 mtx_unlock(&pr->pr_mtx);
214
215 error = sysctl_handle_string(oidp, tmphostname,
216 sizeof pr->pr_host, req);
217
218 if (req->newptr != NULL && error == 0) {
219 /*
220 * Copy the locally set hostname to the jail, if
221 * appropriate.
222 */
223 mtx_lock(&pr->pr_mtx);
224 bcopy(tmphostname, pr->pr_host, MAXHOSTNAMELEN);
225 mtx_unlock(&pr->pr_mtx);
226 }
227 } else
228 error = sysctl_handle_string(oidp,
229 hostname, sizeof hostname, req);
230 return (error);
231}
232
233SYSCTL_PROC(_kern, KERN_HOSTNAME, hostname,
234 CTLTYPE_STRING|CTLFLAG_RW|CTLFLAG_PRISON,
235 0, 0, sysctl_hostname, "A", "Hostname");
236
237static int regression_securelevel_nonmonotonic = 0;
238
239#ifdef REGRESSION
240SYSCTL_INT(_regression, OID_AUTO, securelevel_nonmonotonic, CTLFLAG_RW,
241 ®ression_securelevel_nonmonotonic, 0, "securelevel may be lowered");
242#endif
243
244int securelevel = -1;
245static struct mtx securelevel_mtx;
246
247MTX_SYSINIT(securelevel_lock, &securelevel_mtx, "securelevel mutex lock",
248 MTX_DEF);
249
250static int
251sysctl_kern_securelvl(SYSCTL_HANDLER_ARGS)
252{
253 struct prison *pr;
254 int error, level;
255
256 pr = req->td->td_ucred->cr_prison;
257
258 /*
259 * If the process is in jail, return the maximum of the global and
260 * local levels; otherwise, return the global level. Perform a
261 * lockless read since the securelevel is an integer.
262 */
263 if (pr != NULL)
264 level = imax(securelevel, pr->pr_securelevel);
265 else
266 level = securelevel;
267 error = sysctl_handle_int(oidp, &level, 0, req);
268 if (error || !req->newptr)
269 return (error);
270 /*
271 * Permit update only if the new securelevel exceeds the
272 * global level, and local level if any.
273 */
274 if (pr != NULL) {
275 mtx_lock(&pr->pr_mtx);
276 if (!regression_securelevel_nonmonotonic &&
277 (level < imax(securelevel, pr->pr_securelevel))) {
278 mtx_unlock(&pr->pr_mtx);
279 return (EPERM);
280 }
281 pr->pr_securelevel = level;
282 mtx_unlock(&pr->pr_mtx);
283 } else {
284 mtx_lock(&securelevel_mtx);
285 if (!regression_securelevel_nonmonotonic &&
286 (level < securelevel)) {
287 mtx_unlock(&securelevel_mtx);
288 return (EPERM);
289 }
290 securelevel = level;
291 mtx_unlock(&securelevel_mtx);
292 }
293 return (error);
294}
295
296SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel,
297 CTLTYPE_INT|CTLFLAG_RW|CTLFLAG_PRISON, 0, 0, sysctl_kern_securelvl,
298 "I", "Current secure level");
299
300#ifdef INCLUDE_CONFIG_FILE
301/* Actual kernel configuration options. */
302extern char kernconfstring[];
303
304static int
305sysctl_kern_config(SYSCTL_HANDLER_ARGS)
306{
307 struct sbuf *sb;
308 int error;
309 char *p;
310
311 sb = sbuf_new(NULL, NULL, 2048, SBUF_AUTOEXTEND);
312 if (sb == NULL)
313 return (ENOMEM);
314 sbuf_clear(sb);
315 p = kernconfstring;
316 if (p == NULL || *p == '\0') {
317 sbuf_printf(sb, "No kernel configuration\n");
318 } else {
319 sbuf_printf(sb, "%s", p);
320 }
321 sbuf_trim(sb);
322 sbuf_putc(sb, '\n');
323 sbuf_finish(sb);
324 error = sysctl_handle_string(oidp, sbuf_data(sb), sbuf_len(sb), req);
325 if (error)
326 return (error);
327 sbuf_delete(sb);
328 return (error);
329}
330SYSCTL_PROC(_kern, OID_AUTO, conftxt, CTLTYPE_STRING|CTLFLAG_RW,
331 0, 0, sysctl_kern_config, "", "Kernel configuration file");
332#endif
333
334char domainname[MAXHOSTNAMELEN];
335SYSCTL_STRING(_kern, KERN_NISDOMAINNAME, domainname, CTLFLAG_RW,
336 &domainname, sizeof(domainname), "Name of the current YP/NIS domain");
337
338u_long hostid;
339SYSCTL_ULONG(_kern, KERN_HOSTID, hostid, CTLFLAG_RW, &hostid, 0, "Host ID");
340char hostuuid[64] = "00000000-0000-0000-0000-000000000000";
341SYSCTL_STRING(_kern, KERN_HOSTUUID, hostuuid, CTLFLAG_RW, hostuuid,
342 sizeof(hostuuid), "Host UUID");
343
344/*
345 * This is really cheating. These actually live in the libc, something
346 * which I'm not quite sure is a good idea anyway, but in order for
347 * getnext and friends to actually work, we define dummies here.
348 */
349SYSCTL_STRING(_user, USER_CS_PATH, cs_path, CTLFLAG_RD,
350 "", 0, "PATH that finds all the standard utilities");
351SYSCTL_INT(_user, USER_BC_BASE_MAX, bc_base_max, CTLFLAG_RD,
352 0, 0, "Max ibase/obase values in bc(1)");
353SYSCTL_INT(_user, USER_BC_DIM_MAX, bc_dim_max, CTLFLAG_RD,
354 0, 0, "Max array size in bc(1)");
355SYSCTL_INT(_user, USER_BC_SCALE_MAX, bc_scale_max, CTLFLAG_RD,
356 0, 0, "Max scale value in bc(1)");
357SYSCTL_INT(_user, USER_BC_STRING_MAX, bc_string_max, CTLFLAG_RD,
358 0, 0, "Max string length in bc(1)");
359SYSCTL_INT(_user, USER_COLL_WEIGHTS_MAX, coll_weights_max, CTLFLAG_RD,
360 0, 0, "Maximum number of weights assigned to an LC_COLLATE locale entry");
361SYSCTL_INT(_user, USER_EXPR_NEST_MAX, expr_nest_max, CTLFLAG_RD, 0, 0, "");
362SYSCTL_INT(_user, USER_LINE_MAX, line_max, CTLFLAG_RD,
363 0, 0, "Max length (bytes) of a text-processing utility's input line");
364SYSCTL_INT(_user, USER_RE_DUP_MAX, re_dup_max, CTLFLAG_RD,
365 0, 0, "Maximum number of repeats of a regexp permitted");
366SYSCTL_INT(_user, USER_POSIX2_VERSION, posix2_version, CTLFLAG_RD,
367 0, 0,
368 "The version of POSIX 1003.2 with which the system attempts to comply");
369SYSCTL_INT(_user, USER_POSIX2_C_BIND, posix2_c_bind, CTLFLAG_RD,
370 0, 0, "Whether C development supports the C bindings option");
371SYSCTL_INT(_user, USER_POSIX2_C_DEV, posix2_c_dev, CTLFLAG_RD,
372 0, 0, "Whether system supports the C development utilities option");
373SYSCTL_INT(_user, USER_POSIX2_CHAR_TERM, posix2_char_term, CTLFLAG_RD,
374 0, 0, "");
375SYSCTL_INT(_user, USER_POSIX2_FORT_DEV, posix2_fort_dev, CTLFLAG_RD,
376 0, 0, "Whether system supports FORTRAN development utilities");
377SYSCTL_INT(_user, USER_POSIX2_FORT_RUN, posix2_fort_run, CTLFLAG_RD,
378 0, 0, "Whether system supports FORTRAN runtime utilities");
379SYSCTL_INT(_user, USER_POSIX2_LOCALEDEF, posix2_localedef, CTLFLAG_RD,
380 0, 0, "Whether system supports creation of locales");
381SYSCTL_INT(_user, USER_POSIX2_SW_DEV, posix2_sw_dev, CTLFLAG_RD,
382 0, 0, "Whether system supports software development utilities");
383SYSCTL_INT(_user, USER_POSIX2_UPE, posix2_upe, CTLFLAG_RD,
384 0, 0, "Whether system supports the user portability utilities");
385SYSCTL_INT(_user, USER_STREAM_MAX, stream_max, CTLFLAG_RD,
386 0, 0, "Min Maximum number of streams a process may have open at one time");
387SYSCTL_INT(_user, USER_TZNAME_MAX, tzname_max, CTLFLAG_RD,
388 0, 0, "Min Maximum number of types supported for timezone names");
389
390#include <sys/vnode.h>
391SYSCTL_INT(_debug_sizeof, OID_AUTO, vnode, CTLFLAG_RD,
392 0, sizeof(struct vnode), "sizeof(struct vnode)");
393
394SYSCTL_INT(_debug_sizeof, OID_AUTO, proc, CTLFLAG_RD,
395 0, sizeof(struct proc), "sizeof(struct proc)");
396
397#include <sys/bio.h>
398#include <sys/buf.h>
399SYSCTL_INT(_debug_sizeof, OID_AUTO, bio, CTLFLAG_RD,
400 0, sizeof(struct bio), "sizeof(struct bio)");
401SYSCTL_INT(_debug_sizeof, OID_AUTO, buf, CTLFLAG_RD,
402 0, sizeof(struct buf), "sizeof(struct buf)");
403
404#include <sys/user.h>
405SYSCTL_INT(_debug_sizeof, OID_AUTO, kinfo_proc, CTLFLAG_RD,
406 0, sizeof(struct kinfo_proc), "sizeof(struct kinfo_proc)");
407
408/* XXX compatibility, remove for 6.0 */
409#include <sys/imgact.h>
410#include <sys/imgact_elf.h>
411SYSCTL_INT(_kern, OID_AUTO, fallback_elf_brand, CTLFLAG_RW,
412 &__elfN(fallback_brand), sizeof(__elfN(fallback_brand)),
413 "compatibility for kern.fallback_elf_brand");
| 167sysctl_hw_physmem(SYSCTL_HANDLER_ARGS)
168{
169 u_long val;
170
171 val = ctob(physmem);
172 return (sysctl_handle_long(oidp, &val, 0, req));
173}
174
175SYSCTL_PROC(_hw, HW_PHYSMEM, physmem, CTLTYPE_ULONG | CTLFLAG_RD,
176 0, 0, sysctl_hw_physmem, "LU", "");
177
178static int
179sysctl_hw_realmem(SYSCTL_HANDLER_ARGS)
180{
181 u_long val;
182 val = ctob(realmem);
183 return (sysctl_handle_long(oidp, &val, 0, req));
184}
185SYSCTL_PROC(_hw, HW_REALMEM, realmem, CTLTYPE_ULONG | CTLFLAG_RD,
186 0, 0, sysctl_hw_realmem, "LU", "");
187static int
188sysctl_hw_usermem(SYSCTL_HANDLER_ARGS)
189{
190 u_long val;
191
192 val = ctob(physmem - VMCNT_GET(wire_count));
193 return (sysctl_handle_long(oidp, &val, 0, req));
194}
195
196SYSCTL_PROC(_hw, HW_USERMEM, usermem, CTLTYPE_ULONG | CTLFLAG_RD,
197 0, 0, sysctl_hw_usermem, "LU", "");
198
199SYSCTL_ULONG(_hw, OID_AUTO, availpages, CTLFLAG_RD, &physmem, 0, "");
200
201static char machine_arch[] = MACHINE_ARCH;
202SYSCTL_STRING(_hw, HW_MACHINE_ARCH, machine_arch, CTLFLAG_RD,
203 machine_arch, 0, "System architecture");
204
205char hostname[MAXHOSTNAMELEN];
206
207static int
208sysctl_hostname(SYSCTL_HANDLER_ARGS)
209{
210 struct prison *pr;
211 char tmphostname[MAXHOSTNAMELEN];
212 int error;
213
214 pr = req->td->td_ucred->cr_prison;
215 if (pr != NULL) {
216 if (!jail_set_hostname_allowed && req->newptr)
217 return (EPERM);
218 /*
219 * Process is in jail, so make a local copy of jail
220 * hostname to get/set so we don't have to hold the jail
221 * mutex during the sysctl copyin/copyout activities.
222 */
223 mtx_lock(&pr->pr_mtx);
224 bcopy(pr->pr_host, tmphostname, MAXHOSTNAMELEN);
225 mtx_unlock(&pr->pr_mtx);
226
227 error = sysctl_handle_string(oidp, tmphostname,
228 sizeof pr->pr_host, req);
229
230 if (req->newptr != NULL && error == 0) {
231 /*
232 * Copy the locally set hostname to the jail, if
233 * appropriate.
234 */
235 mtx_lock(&pr->pr_mtx);
236 bcopy(tmphostname, pr->pr_host, MAXHOSTNAMELEN);
237 mtx_unlock(&pr->pr_mtx);
238 }
239 } else
240 error = sysctl_handle_string(oidp,
241 hostname, sizeof hostname, req);
242 return (error);
243}
244
245SYSCTL_PROC(_kern, KERN_HOSTNAME, hostname,
246 CTLTYPE_STRING|CTLFLAG_RW|CTLFLAG_PRISON,
247 0, 0, sysctl_hostname, "A", "Hostname");
248
249static int regression_securelevel_nonmonotonic = 0;
250
251#ifdef REGRESSION
252SYSCTL_INT(_regression, OID_AUTO, securelevel_nonmonotonic, CTLFLAG_RW,
253 ®ression_securelevel_nonmonotonic, 0, "securelevel may be lowered");
254#endif
255
256int securelevel = -1;
257static struct mtx securelevel_mtx;
258
259MTX_SYSINIT(securelevel_lock, &securelevel_mtx, "securelevel mutex lock",
260 MTX_DEF);
261
262static int
263sysctl_kern_securelvl(SYSCTL_HANDLER_ARGS)
264{
265 struct prison *pr;
266 int error, level;
267
268 pr = req->td->td_ucred->cr_prison;
269
270 /*
271 * If the process is in jail, return the maximum of the global and
272 * local levels; otherwise, return the global level. Perform a
273 * lockless read since the securelevel is an integer.
274 */
275 if (pr != NULL)
276 level = imax(securelevel, pr->pr_securelevel);
277 else
278 level = securelevel;
279 error = sysctl_handle_int(oidp, &level, 0, req);
280 if (error || !req->newptr)
281 return (error);
282 /*
283 * Permit update only if the new securelevel exceeds the
284 * global level, and local level if any.
285 */
286 if (pr != NULL) {
287 mtx_lock(&pr->pr_mtx);
288 if (!regression_securelevel_nonmonotonic &&
289 (level < imax(securelevel, pr->pr_securelevel))) {
290 mtx_unlock(&pr->pr_mtx);
291 return (EPERM);
292 }
293 pr->pr_securelevel = level;
294 mtx_unlock(&pr->pr_mtx);
295 } else {
296 mtx_lock(&securelevel_mtx);
297 if (!regression_securelevel_nonmonotonic &&
298 (level < securelevel)) {
299 mtx_unlock(&securelevel_mtx);
300 return (EPERM);
301 }
302 securelevel = level;
303 mtx_unlock(&securelevel_mtx);
304 }
305 return (error);
306}
307
308SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel,
309 CTLTYPE_INT|CTLFLAG_RW|CTLFLAG_PRISON, 0, 0, sysctl_kern_securelvl,
310 "I", "Current secure level");
311
312#ifdef INCLUDE_CONFIG_FILE
313/* Actual kernel configuration options. */
314extern char kernconfstring[];
315
316static int
317sysctl_kern_config(SYSCTL_HANDLER_ARGS)
318{
319 struct sbuf *sb;
320 int error;
321 char *p;
322
323 sb = sbuf_new(NULL, NULL, 2048, SBUF_AUTOEXTEND);
324 if (sb == NULL)
325 return (ENOMEM);
326 sbuf_clear(sb);
327 p = kernconfstring;
328 if (p == NULL || *p == '\0') {
329 sbuf_printf(sb, "No kernel configuration\n");
330 } else {
331 sbuf_printf(sb, "%s", p);
332 }
333 sbuf_trim(sb);
334 sbuf_putc(sb, '\n');
335 sbuf_finish(sb);
336 error = sysctl_handle_string(oidp, sbuf_data(sb), sbuf_len(sb), req);
337 if (error)
338 return (error);
339 sbuf_delete(sb);
340 return (error);
341}
342SYSCTL_PROC(_kern, OID_AUTO, conftxt, CTLTYPE_STRING|CTLFLAG_RW,
343 0, 0, sysctl_kern_config, "", "Kernel configuration file");
344#endif
345
346char domainname[MAXHOSTNAMELEN];
347SYSCTL_STRING(_kern, KERN_NISDOMAINNAME, domainname, CTLFLAG_RW,
348 &domainname, sizeof(domainname), "Name of the current YP/NIS domain");
349
350u_long hostid;
351SYSCTL_ULONG(_kern, KERN_HOSTID, hostid, CTLFLAG_RW, &hostid, 0, "Host ID");
352char hostuuid[64] = "00000000-0000-0000-0000-000000000000";
353SYSCTL_STRING(_kern, KERN_HOSTUUID, hostuuid, CTLFLAG_RW, hostuuid,
354 sizeof(hostuuid), "Host UUID");
355
356/*
357 * This is really cheating. These actually live in the libc, something
358 * which I'm not quite sure is a good idea anyway, but in order for
359 * getnext and friends to actually work, we define dummies here.
360 */
361SYSCTL_STRING(_user, USER_CS_PATH, cs_path, CTLFLAG_RD,
362 "", 0, "PATH that finds all the standard utilities");
363SYSCTL_INT(_user, USER_BC_BASE_MAX, bc_base_max, CTLFLAG_RD,
364 0, 0, "Max ibase/obase values in bc(1)");
365SYSCTL_INT(_user, USER_BC_DIM_MAX, bc_dim_max, CTLFLAG_RD,
366 0, 0, "Max array size in bc(1)");
367SYSCTL_INT(_user, USER_BC_SCALE_MAX, bc_scale_max, CTLFLAG_RD,
368 0, 0, "Max scale value in bc(1)");
369SYSCTL_INT(_user, USER_BC_STRING_MAX, bc_string_max, CTLFLAG_RD,
370 0, 0, "Max string length in bc(1)");
371SYSCTL_INT(_user, USER_COLL_WEIGHTS_MAX, coll_weights_max, CTLFLAG_RD,
372 0, 0, "Maximum number of weights assigned to an LC_COLLATE locale entry");
373SYSCTL_INT(_user, USER_EXPR_NEST_MAX, expr_nest_max, CTLFLAG_RD, 0, 0, "");
374SYSCTL_INT(_user, USER_LINE_MAX, line_max, CTLFLAG_RD,
375 0, 0, "Max length (bytes) of a text-processing utility's input line");
376SYSCTL_INT(_user, USER_RE_DUP_MAX, re_dup_max, CTLFLAG_RD,
377 0, 0, "Maximum number of repeats of a regexp permitted");
378SYSCTL_INT(_user, USER_POSIX2_VERSION, posix2_version, CTLFLAG_RD,
379 0, 0,
380 "The version of POSIX 1003.2 with which the system attempts to comply");
381SYSCTL_INT(_user, USER_POSIX2_C_BIND, posix2_c_bind, CTLFLAG_RD,
382 0, 0, "Whether C development supports the C bindings option");
383SYSCTL_INT(_user, USER_POSIX2_C_DEV, posix2_c_dev, CTLFLAG_RD,
384 0, 0, "Whether system supports the C development utilities option");
385SYSCTL_INT(_user, USER_POSIX2_CHAR_TERM, posix2_char_term, CTLFLAG_RD,
386 0, 0, "");
387SYSCTL_INT(_user, USER_POSIX2_FORT_DEV, posix2_fort_dev, CTLFLAG_RD,
388 0, 0, "Whether system supports FORTRAN development utilities");
389SYSCTL_INT(_user, USER_POSIX2_FORT_RUN, posix2_fort_run, CTLFLAG_RD,
390 0, 0, "Whether system supports FORTRAN runtime utilities");
391SYSCTL_INT(_user, USER_POSIX2_LOCALEDEF, posix2_localedef, CTLFLAG_RD,
392 0, 0, "Whether system supports creation of locales");
393SYSCTL_INT(_user, USER_POSIX2_SW_DEV, posix2_sw_dev, CTLFLAG_RD,
394 0, 0, "Whether system supports software development utilities");
395SYSCTL_INT(_user, USER_POSIX2_UPE, posix2_upe, CTLFLAG_RD,
396 0, 0, "Whether system supports the user portability utilities");
397SYSCTL_INT(_user, USER_STREAM_MAX, stream_max, CTLFLAG_RD,
398 0, 0, "Min Maximum number of streams a process may have open at one time");
399SYSCTL_INT(_user, USER_TZNAME_MAX, tzname_max, CTLFLAG_RD,
400 0, 0, "Min Maximum number of types supported for timezone names");
401
402#include <sys/vnode.h>
403SYSCTL_INT(_debug_sizeof, OID_AUTO, vnode, CTLFLAG_RD,
404 0, sizeof(struct vnode), "sizeof(struct vnode)");
405
406SYSCTL_INT(_debug_sizeof, OID_AUTO, proc, CTLFLAG_RD,
407 0, sizeof(struct proc), "sizeof(struct proc)");
408
409#include <sys/bio.h>
410#include <sys/buf.h>
411SYSCTL_INT(_debug_sizeof, OID_AUTO, bio, CTLFLAG_RD,
412 0, sizeof(struct bio), "sizeof(struct bio)");
413SYSCTL_INT(_debug_sizeof, OID_AUTO, buf, CTLFLAG_RD,
414 0, sizeof(struct buf), "sizeof(struct buf)");
415
416#include <sys/user.h>
417SYSCTL_INT(_debug_sizeof, OID_AUTO, kinfo_proc, CTLFLAG_RD,
418 0, sizeof(struct kinfo_proc), "sizeof(struct kinfo_proc)");
419
420/* XXX compatibility, remove for 6.0 */
421#include <sys/imgact.h>
422#include <sys/imgact_elf.h>
423SYSCTL_INT(_kern, OID_AUTO, fallback_elf_brand, CTLFLAG_RW,
424 &__elfN(fallback_brand), sizeof(__elfN(fallback_brand)),
425 "compatibility for kern.fallback_elf_brand");
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