diff options
Diffstat (limited to 'sys/kern/kern_mib.c')
| -rw-r--r-- | sys/kern/kern_mib.c | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/sys/kern/kern_mib.c b/sys/kern/kern_mib.c new file mode 100644 index 0000000..35c70fb --- /dev/null +++ b/sys/kern/kern_mib.c @@ -0,0 +1,255 @@ +/*- + * Copyright (c) 1982, 1986, 1989, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Mike Karels at Berkeley Software Design, Inc. + * + * Quite extensively rewritten by Poul-Henning Kamp of the FreeBSD + * project, to make these variables more userfriendly. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)kern_sysctl.c 8.4 (Berkeley) 4/14/94 + * $FreeBSD$ + */ + +#include <sys/param.h> +#include <sys/kernel.h> +#include <sys/systm.h> +#include <sys/sysctl.h> +#include <sys/proc.h> +#include <sys/jail.h> +#include <machine/smp.h> + +SYSCTL_NODE(, 0, sysctl, CTLFLAG_RW, 0, + "Sysctl internal magic"); +SYSCTL_NODE(, CTL_KERN, kern, CTLFLAG_RW, 0, + "High kernel, proc, limits &c"); +SYSCTL_NODE(, CTL_VM, vm, CTLFLAG_RW, 0, + "Virtual memory"); +SYSCTL_NODE(, CTL_VFS, vfs, CTLFLAG_RW, 0, + "File system"); +SYSCTL_NODE(, CTL_NET, net, CTLFLAG_RW, 0, + "Network, (see socket.h)"); +SYSCTL_NODE(, CTL_DEBUG, debug, CTLFLAG_RW, 0, + "Debugging"); +SYSCTL_NODE(_debug, OID_AUTO, sizeof, CTLFLAG_RW, 0, + "Sizeof various things"); +SYSCTL_NODE(, CTL_HW, hw, CTLFLAG_RW, 0, + "hardware"); +SYSCTL_NODE(, CTL_MACHDEP, machdep, CTLFLAG_RW, 0, + "machine dependent"); +SYSCTL_NODE(, CTL_USER, user, CTLFLAG_RW, 0, + "user-level"); +SYSCTL_NODE(, CTL_P1003_1B, p1003_1b, CTLFLAG_RW, 0, + "p1003_1b, (see p1003_1b.h)"); + +SYSCTL_NODE(, OID_AUTO, compat, CTLFLAG_RW, 0, + "Compatibility code"); + +SYSCTL_STRING(_kern, KERN_OSRELEASE, osrelease, CTLFLAG_RD, + osrelease, 0, "Operating system type"); + +SYSCTL_INT(_kern, KERN_OSREV, osrevision, CTLFLAG_RD, + 0, BSD, "Operating system revision"); + +SYSCTL_STRING(_kern, KERN_VERSION, version, CTLFLAG_RD, + version, 0, "Kernel version"); + +SYSCTL_STRING(_kern, KERN_OSTYPE, ostype, CTLFLAG_RD, + ostype, 0, "Operating system type"); + +extern int osreldate; +SYSCTL_INT(_kern, KERN_OSRELDATE, osreldate, CTLFLAG_RD, + &osreldate, 0, "Operating system release date"); + +SYSCTL_INT(_kern, KERN_MAXPROC, maxproc, CTLFLAG_RD, + &maxproc, 0, "Maximum number of processes"); + +SYSCTL_INT(_kern, KERN_MAXPROCPERUID, maxprocperuid, CTLFLAG_RW, + &maxprocperuid, 0, "Maximum processes allowed per userid"); + +SYSCTL_INT(_kern, KERN_ARGMAX, argmax, CTLFLAG_RD, + 0, ARG_MAX, "Maximum bytes of argument to execve(2)"); + +SYSCTL_INT(_kern, KERN_POSIX1, posix1version, CTLFLAG_RD, + 0, _KPOSIX_VERSION, "Version of POSIX attempting to comply to"); + +SYSCTL_INT(_kern, KERN_NGROUPS, ngroups, CTLFLAG_RD, + 0, NGROUPS_MAX, "Maximum number of groups a user can belong to"); + +SYSCTL_INT(_kern, KERN_JOB_CONTROL, job_control, CTLFLAG_RD, + 0, 1, "Whether job control is available"); + +#ifdef _POSIX_SAVED_IDS +SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD, + 0, 1, "Whether saved set-group/user ID is available"); +#else +SYSCTL_INT(_kern, KERN_SAVED_IDS, saved_ids, CTLFLAG_RD, + 0, 0, "Whether saved set-group/user ID is available"); +#endif + +char kernelname[MAXPATHLEN] = "/kernel"; /* XXX bloat */ + +SYSCTL_STRING(_kern, KERN_BOOTFILE, bootfile, CTLFLAG_RW, + kernelname, sizeof kernelname, "Name of kernel file booted"); + +#ifdef SMP +SYSCTL_INT(_hw, HW_NCPU, ncpu, CTLFLAG_RD, + &mp_ncpus, 0, "Number of active CPUs"); +#else +SYSCTL_INT(_hw, HW_NCPU, ncpu, CTLFLAG_RD, + 0, 1, "Number of active CPUs"); +#endif + +SYSCTL_INT(_hw, HW_BYTEORDER, byteorder, CTLFLAG_RD, + 0, BYTE_ORDER, "System byte order"); + +SYSCTL_INT(_hw, HW_PAGESIZE, pagesize, CTLFLAG_RD, + 0, PAGE_SIZE, "System memory page size"); + +static char machine_arch[] = MACHINE_ARCH; +SYSCTL_STRING(_hw, HW_MACHINE_ARCH, machine_arch, CTLFLAG_RD, + machine_arch, 0, "System architecture"); + +char hostname[MAXHOSTNAMELEN]; + +static int +sysctl_hostname SYSCTL_HANDLER_ARGS +{ + int error; + + if (req->p->p_prison) { + if (!jail_set_hostname_allowed && req->newptr) + return(EPERM); + error = sysctl_handle_string(oidp, + req->p->p_prison->pr_host, + sizeof req->p->p_prison->pr_host, req); + } else + error = sysctl_handle_string(oidp, + hostname, sizeof hostname, req); + return (error); +} + +SYSCTL_PROC(_kern, KERN_HOSTNAME, hostname, + CTLTYPE_STRING|CTLFLAG_RW|CTLFLAG_PRISON, + 0, 0, sysctl_hostname, "A", "Hostname"); + +int securelevel = -1; + +static int +sysctl_kern_securelvl SYSCTL_HANDLER_ARGS +{ + int error, level; + + level = securelevel; + error = sysctl_handle_int(oidp, &level, 0, req); + if (error || !req->newptr) + return (error); + if (level < securelevel) + return (EPERM); + securelevel = level; + return (error); +} + +SYSCTL_PROC(_kern, KERN_SECURELVL, securelevel, CTLTYPE_INT|CTLFLAG_RW, + 0, 0, sysctl_kern_securelvl, "I", "Current secure level"); + +char domainname[MAXHOSTNAMELEN]; +SYSCTL_STRING(_kern, KERN_NISDOMAINNAME, domainname, CTLFLAG_RW, + &domainname, sizeof(domainname), "Name of the current YP/NIS domain"); + +long hostid; +/* Some trouble here, if sizeof (int) != sizeof (long) */ +SYSCTL_INT(_kern, KERN_HOSTID, hostid, CTLFLAG_RW, &hostid, 0, "Host ID"); + +/* + * This is really cheating. These actually live in the libc, something + * which I'm not quite sure is a good idea anyway, but in order for + * getnext and friends to actually work, we define dummies here. + */ +SYSCTL_STRING(_user, USER_CS_PATH, cs_path, CTLFLAG_RD, + "", 0, "PATH that finds all the standard utilities"); +SYSCTL_INT(_user, USER_BC_BASE_MAX, bc_base_max, CTLFLAG_RD, + 0, 0, "Max ibase/obase values in bc(1)"); +SYSCTL_INT(_user, USER_BC_DIM_MAX, bc_dim_max, CTLFLAG_RD, + 0, 0, "Max array size in bc(1)"); +SYSCTL_INT(_user, USER_BC_SCALE_MAX, bc_scale_max, CTLFLAG_RD, + 0, 0, "Max scale value in bc(1)"); +SYSCTL_INT(_user, USER_BC_STRING_MAX, bc_string_max, CTLFLAG_RD, + 0, 0, "Max string length in bc(1)"); +SYSCTL_INT(_user, USER_COLL_WEIGHTS_MAX, coll_weights_max, CTLFLAG_RD, + 0, 0, "Maximum number of weights assigned to an LC_COLLATE locale entry"); +SYSCTL_INT(_user, USER_EXPR_NEST_MAX, expr_nest_max, CTLFLAG_RD, 0, 0, ""); +SYSCTL_INT(_user, USER_LINE_MAX, line_max, CTLFLAG_RD, + 0, 0, "Max length (bytes) of a text-processing utility's input line"); +SYSCTL_INT(_user, USER_RE_DUP_MAX, re_dup_max, CTLFLAG_RD, + 0, 0, "Maximum number of repeats of a regexp permitted"); +SYSCTL_INT(_user, USER_POSIX2_VERSION, posix2_version, CTLFLAG_RD, + 0, 0, + "The version of POSIX 1003.2 with which the system attempts to comply"); +SYSCTL_INT(_user, USER_POSIX2_C_BIND, posix2_c_bind, CTLFLAG_RD, + 0, 0, "Whether C development supports the C bindings option"); +SYSCTL_INT(_user, USER_POSIX2_C_DEV, posix2_c_dev, CTLFLAG_RD, + 0, 0, "Whether system supports the C development utilities option"); +SYSCTL_INT(_user, USER_POSIX2_CHAR_TERM, posix2_char_term, CTLFLAG_RD, + 0, 0, ""); +SYSCTL_INT(_user, USER_POSIX2_FORT_DEV, posix2_fort_dev, CTLFLAG_RD, + 0, 0, "Whether system supports FORTRAN development utilities"); +SYSCTL_INT(_user, USER_POSIX2_FORT_RUN, posix2_fort_run, CTLFLAG_RD, + 0, 0, "Whether system supports FORTRAN runtime utilities"); +SYSCTL_INT(_user, USER_POSIX2_LOCALEDEF, posix2_localedef, CTLFLAG_RD, + 0, 0, "Whether system supports creation of locales"); +SYSCTL_INT(_user, USER_POSIX2_SW_DEV, posix2_sw_dev, CTLFLAG_RD, + 0, 0, "Whether system supports software development utilities"); +SYSCTL_INT(_user, USER_POSIX2_UPE, posix2_upe, CTLFLAG_RD, + 0, 0, "Whether system supports the user portability utilities"); +SYSCTL_INT(_user, USER_STREAM_MAX, stream_max, CTLFLAG_RD, + 0, 0, "Min Maximum number of streams a process may have open at one time"); +SYSCTL_INT(_user, USER_TZNAME_MAX, tzname_max, CTLFLAG_RD, + 0, 0, "Min Maximum number of types supported for timezone names"); + +#include <sys/vnode.h> +SYSCTL_INT(_debug_sizeof, OID_AUTO, vnode, CTLFLAG_RD, + 0, sizeof(struct vnode), "sizeof(struct vnode)"); + +SYSCTL_INT(_debug_sizeof, OID_AUTO, proc, CTLFLAG_RD, + 0, sizeof(struct proc), "sizeof(struct proc)"); + +#include <sys/conf.h> +SYSCTL_INT(_debug_sizeof, OID_AUTO, specinfo, CTLFLAG_RD, + 0, sizeof(struct specinfo), "sizeof(struct specinfo)"); + +#include <sys/bio.h> +#include <sys/buf.h> +SYSCTL_INT(_debug_sizeof, OID_AUTO, bio, CTLFLAG_RD, + 0, sizeof(struct bio), "sizeof(struct bio)"); +SYSCTL_INT(_debug_sizeof, OID_AUTO, buf, CTLFLAG_RD, + 0, sizeof(struct buf), "sizeof(struct buf)"); |
