Index: head/sbin/sysctl/sysctl.8 =================================================================== --- head/sbin/sysctl/sysctl.8 (revision 292044) +++ head/sbin/sysctl/sysctl.8 (revision 292045) @@ -1,324 +1,326 @@ .\" Copyright (c) 1993 .\" The Regents of the University of California. All rights reserved. .\" .\" 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. .\" 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. .\" .\" From: @(#)sysctl.8 8.1 (Berkeley) 6/6/93 .\" $FreeBSD$ .\" -.Dd February 12, 2015 +.Dd December 10, 2015 .Dt SYSCTL 8 .Os .Sh NAME .Nm sysctl .Nd get or set kernel state .Sh SYNOPSIS .Nm -.Op Fl bdehiNnoRTqx +.Op Fl bdehiNnoRTtqx .Op Fl B Ar bufsize .Op Fl f Ar filename .Ar name Ns Op = Ns Ar value .Ar ... .Nm -.Op Fl bdehNnoRTqx +.Op Fl bdehNnoRTtqx .Op Fl B Ar bufsize .Fl a .Sh DESCRIPTION The .Nm utility retrieves kernel state and allows processes with appropriate privilege to set kernel state. The state to be retrieved or set is described using a .Dq Management Information Base .Pq Dq MIB style name, described as a dotted set of components. .Pp The following options are available: .Bl -tag -width indent .It Fl A Equivalent to .Fl o a (for compatibility). .It Fl a List all the currently available non-opaque values. This option is ignored if one or more variable names are specified on the command line. .It Fl b Force the value of the variable(s) to be output in raw, binary format. No names are printed and no terminating newlines are output. This is mostly useful with a single variable. .It Fl B Ar bufsize Set the buffer size to read from the .Nm to .Ar bufsize . This is necessary for a .Nm that has variable length, and the probe value of 0 is a valid length, such as .Va kern.arandom . .It Fl d Print the description of the variable instead of its value. .It Fl e Separate the name and the value of the variable(s) with .Ql = . This is useful for producing output which can be fed back to the .Nm utility. This option is ignored if either .Fl N or .Fl n is specified, or a variable is being set. .It Fl f Ar filename Specify a file which contains a pair of name and value in each line. .Nm reads and processes the specified file first and then processes the name and value pairs in the command line argument. .It Fl h Format output for human, rather than machine, readability. .It Fl i Ignore unknown OIDs. The purpose is to make use of .Nm for collecting data from a variety of machines (not all of which are necessarily running exactly the same software) easier. .It Fl N Show only variable names, not their values. This is particularly useful with shells that offer programmable completion. To enable completion of variable names in .Xr zsh 1 Pq Pa ports/shells/zsh , use the following code: .Bd -literal -offset indent listsysctls () { set -A reply $(sysctl -AN ${1%.*}) } compctl -K listsysctls sysctl .Ed .Pp To enable completion of variable names in .Xr tcsh 1 , use: .Pp .Dl "complete sysctl 'n/*/`sysctl -Na`/'" .It Fl n Show only variable values, not their names. This option is useful for setting shell variables. For instance, to save the pagesize in variable .Va psize , use: .Pp .Dl "set psize=`sysctl -n hw.pagesize`" .It Fl o Show opaque variables (which are normally suppressed). The format and length are printed, as well as a hex dump of the first sixteen bytes of the value. .It Fl q Suppress some warnings generated by .Nm to standard error. .It Fl T Display only variables that are settable via loader (CTLFLAG_TUN). +.It Fl t +Print the type of the variable. .It Fl W Display only writable variables that are not statistical. Useful for determining the set of runtime tunable sysctls. .It Fl X Equivalent to .Fl x a (for compatibility). .It Fl x As .Fl o , but prints a hex dump of the entire value instead of just the first few bytes. .El .Pp The information available from .Nm consists of integers, strings, and opaque types. The .Nm utility only knows about a couple of opaque types, and will resort to hexdumps for the rest. The opaque information is much more useful if retrieved by special purpose programs such as .Xr ps 1 , .Xr systat 1 , and .Xr netstat 1 . .Pp Some of the variables which cannot be modified during normal system operation can be initialized via .Xr loader 8 tunables. This can for example be done by setting them in .Xr loader.conf 5 . Please refer to .Xr loader.conf 5 for more information on which tunables are available and how to set them. .Pp The string and integer information is summarized below. For a detailed description of these variable see .Xr sysctl 3 . .Pp The changeable column indicates whether a process with appropriate privilege can change the value. String and integer values can be set using .Nm . .Bl -column security.bsd.unprivileged_read_msgbuf integerxxx .It Sy "Name Type Changeable" .It "kern.ostype string no" .It "kern.osrelease string no" .It "kern.osrevision integer no" .It "kern.version string no" .It "kern.maxvnodes integer yes" .It "kern.maxproc integer no" .It "kern.maxprocperuid integer yes" .It "kern.maxfiles integer yes" .It "kern.maxfilesperproc integer yes" .It "kern.argmax integer no" .It "kern.securelevel integer raise only" .It "kern.hostname string yes" .It "kern.hostid integer yes" .It "kern.clockrate struct no" .It "kern.posix1version integer no" .It "kern.ngroups integer no" .It "kern.job_control integer no" .It "kern.saved_ids integer no" .It "kern.boottime struct no" .It "kern.domainname string yes" .It "kern.filedelay integer yes" .It "kern.dirdelay integer yes" .It "kern.metadelay integer yes" .It "kern.osreldate string no" .It "kern.bootfile string yes" .It "kern.corefile string yes" .It "kern.logsigexit integer yes" .It "security.bsd.suser_enabled integer yes" .It "security.bsd.see_other_uids integer yes" .It "security.bsd.unprivileged_proc_debug integer yes" .It "security.bsd.unprivileged_read_msgbuf integer yes" .It "vm.loadavg struct no" .It "hw.machine string no" .It "hw.model string no" .It "hw.ncpu integer no" .It "hw.byteorder integer no" .It "hw.physmem integer no" .It "hw.usermem integer no" .It "hw.pagesize integer no" .It "hw.floatingpoint integer no" .It "hw.machine_arch string no" .It "hw.realmem integer no" .It "machdep.adjkerntz integer yes" .It "machdep.disable_rtc_set integer yes" .It "machdep.guessed_bootdev string no" .It "user.cs_path string no" .It "user.bc_base_max integer no" .It "user.bc_dim_max integer no" .It "user.bc_scale_max integer no" .It "user.bc_string_max integer no" .It "user.coll_weights_max integer no" .It "user.expr_nest_max integer no" .It "user.line_max integer no" .It "user.re_dup_max integer no" .It "user.posix2_version integer no" .It "user.posix2_c_bind integer no" .It "user.posix2_c_dev integer no" .It "user.posix2_char_term integer no" .It "user.posix2_fort_dev integer no" .It "user.posix2_fort_run integer no" .It "user.posix2_localedef integer no" .It "user.posix2_sw_dev integer no" .It "user.posix2_upe integer no" .It "user.stream_max integer no" .It "user.tzname_max integer no" .El .Sh FILES .Bl -tag -width ".In netinet/icmp_var.h" -compact .It In sys/sysctl.h definitions for top level identifiers, second level kernel and hardware identifiers, and user level identifiers .It In sys/socket.h definitions for second level network identifiers .It In sys/gmon.h definitions for third level profiling identifiers .It In vm/vm_param.h definitions for second level virtual memory identifiers .It In netinet/in.h definitions for third level Internet identifiers and fourth level IP identifiers .It In netinet/icmp_var.h definitions for fourth level ICMP identifiers .It In netinet/udp_var.h definitions for fourth level UDP identifiers .El .Sh EXAMPLES For example, to retrieve the maximum number of processes allowed in the system, one would use the following request: .Pp .Dl "sysctl kern.maxproc" .Pp To set the maximum number of processes allowed per uid to 1000, one would use the following request: .Pp .Dl "sysctl kern.maxprocperuid=1000" .Pp Information about the system clock rate may be obtained with: .Pp .Dl "sysctl kern.clockrate" .Pp Information about the load average history may be obtained with: .Pp .Dl "sysctl vm.loadavg" .Pp More variables than these exist, and the best and likely only place to search for their deeper meaning is undoubtedly the source where they are defined. .Sh COMPATIBILITY The .Fl w option has been deprecated and is silently ignored. .Sh SEE ALSO .Xr sysctl 3 , .Xr loader.conf 5 , .Xr sysctl.conf 5 , .Xr loader 8 .Sh HISTORY A .Nm utility first appeared in .Bx 4.4 . .Pp In .Fx 2.2 , .Nm was significantly remodeled. .Sh BUGS The .Nm utility presently exploits an undocumented interface to the kernel sysctl facility to traverse the sysctl tree and to retrieve format and name information. This correct interface is being thought about for the time being. Index: head/sbin/sysctl/sysctl.c =================================================================== --- head/sbin/sysctl/sysctl.c (revision 292044) +++ head/sbin/sysctl/sysctl.c (revision 292045) @@ -1,1123 +1,1139 @@ /* * Copyright (c) 1993 * The Regents of the University of California. All rights reserved. * * 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. * 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. */ #ifndef lint static const char copyright[] = "@(#) Copyright (c) 1993\n\ The Regents of the University of California. All rights reserved.\n"; #endif /* not lint */ #ifndef lint #if 0 static char sccsid[] = "@(#)from: sysctl.c 8.1 (Berkeley) 6/6/93"; #endif static const char rcsid[] = "$FreeBSD$"; #endif /* not lint */ #include #include #include #include #include #include #ifdef __amd64__ #include #include #endif #if defined(__amd64__) || defined(__i386__) #include #endif #include #include #include #include #include #include #include #include #include #include #include static const char *conffile; static int aflag, bflag, Bflag, dflag, eflag, hflag, iflag; -static int Nflag, nflag, oflag, qflag, Tflag, Wflag, xflag; +static int Nflag, nflag, oflag, qflag, tflag, Tflag, Wflag, xflag; static int oidfmt(int *, int, char *, u_int *); static int parsefile(const char *); static int parse(const char *, int); static int show_var(int *, int); static int sysctl_all(int *oid, int len); static int name2oid(const char *, int *); static int strIKtoi(const char *, char **, const char *); static int ctl_sign[CTLTYPE+1] = { [CTLTYPE_INT] = 1, [CTLTYPE_LONG] = 1, [CTLTYPE_S8] = 1, [CTLTYPE_S16] = 1, [CTLTYPE_S32] = 1, [CTLTYPE_S64] = 1, }; static int ctl_size[CTLTYPE+1] = { [CTLTYPE_INT] = sizeof(int), [CTLTYPE_UINT] = sizeof(u_int), [CTLTYPE_LONG] = sizeof(long), [CTLTYPE_ULONG] = sizeof(u_long), [CTLTYPE_S8] = sizeof(int8_t), [CTLTYPE_S16] = sizeof(int16_t), [CTLTYPE_S32] = sizeof(int32_t), [CTLTYPE_S64] = sizeof(int64_t), [CTLTYPE_U8] = sizeof(uint8_t), [CTLTYPE_U16] = sizeof(uint16_t), [CTLTYPE_U32] = sizeof(uint32_t), [CTLTYPE_U64] = sizeof(uint64_t), }; static const char *ctl_typename[CTLTYPE+1] = { [CTLTYPE_INT] = "integer", [CTLTYPE_UINT] = "unsigned integer", [CTLTYPE_LONG] = "long integer", [CTLTYPE_ULONG] = "unsigned long", [CTLTYPE_U8] = "uint8_t", [CTLTYPE_U16] = "uint16_t", [CTLTYPE_U32] = "uint16_t", [CTLTYPE_U64] = "uint64_t", [CTLTYPE_S8] = "int8_t", [CTLTYPE_S16] = "int16_t", [CTLTYPE_S32] = "int32_t", [CTLTYPE_S64] = "int64_t", + [CTLTYPE_NODE] = "node", + [CTLTYPE_STRING] = "string", + [CTLTYPE_OPAQUE] = "opaque", }; static void usage(void) { (void)fprintf(stderr, "%s\n%s\n", - "usage: sysctl [-bdehiNnoqTWx] [ -B ] [-f filename] name[=value] ...", - " sysctl [-bdehNnoqTWx] [ -B ] -a"); + "usage: sysctl [-bdehiNnoqTtWx] [ -B ] [-f filename] name[=value] ...", + " sysctl [-bdehNnoqTtWx] [ -B ] -a"); exit(1); } int main(int argc, char **argv) { int ch; int warncount = 0; setlocale(LC_NUMERIC, ""); setbuf(stdout,0); setbuf(stderr,0); - while ((ch = getopt(argc, argv, "AabB:def:hiNnoqTwWxX")) != -1) { + while ((ch = getopt(argc, argv, "AabB:def:hiNnoqtTwWxX")) != -1) { switch (ch) { case 'A': /* compatibility */ aflag = oflag = 1; break; case 'a': aflag = 1; break; case 'b': bflag = 1; break; case 'B': Bflag = strtol(optarg, NULL, 0); break; case 'd': dflag = 1; break; case 'e': eflag = 1; break; case 'f': conffile = optarg; break; case 'h': hflag = 1; break; case 'i': iflag = 1; break; case 'N': Nflag = 1; break; case 'n': nflag = 1; break; case 'o': oflag = 1; break; case 'q': qflag = 1; break; + case 't': + tflag = 1; + break; case 'T': Tflag = 1; break; case 'w': /* compatibility */ /* ignored */ break; case 'W': Wflag = 1; break; case 'X': /* compatibility */ aflag = xflag = 1; break; case 'x': xflag = 1; break; default: usage(); } } argc -= optind; argv += optind; if (Nflag && nflag) usage(); if (aflag && argc == 0) exit(sysctl_all(0, 0)); if (argc == 0 && conffile == NULL) usage(); warncount = 0; if (conffile != NULL) warncount += parsefile(conffile); while (argc-- > 0) warncount += parse(*argv++, 0); return (warncount); } /* * Parse a name into a MIB entry. * Lookup and print out the MIB entry if it exists. * Set a new value if requested. */ static int parse(const char *string, int lineno) { int len, i, j; const void *newval; const char *newvalstr = NULL; int8_t i8val; uint8_t u8val; int16_t i16val; uint16_t u16val; int32_t i32val; uint32_t u32val; int intval; unsigned int uintval; long longval; unsigned long ulongval; size_t newsize = Bflag; int64_t i64val; uint64_t u64val; int mib[CTL_MAXNAME]; char *cp, *bufp, buf[BUFSIZ], *endptr = NULL, fmt[BUFSIZ], line[BUFSIZ]; u_int kind; if (lineno) snprintf(line, sizeof(line), " at line %d", lineno); else line[0] = '\0'; cp = buf; if (snprintf(buf, BUFSIZ, "%s", string) >= BUFSIZ) { warnx("oid too long: '%s'%s", string, line); return (1); } bufp = strsep(&cp, "=:"); if (cp != NULL) { /* Tflag just lists tunables, do not allow assignment */ if (Tflag || Wflag) { warnx("Can't set variables when using -T or -W"); usage(); } while (isspace(*cp)) cp++; /* Strip a pair of " or ' if any. */ switch (*cp) { case '\"': case '\'': if (cp[strlen(cp) - 1] == *cp) cp[strlen(cp) - 1] = '\0'; cp++; } newvalstr = cp; newsize = strlen(cp); } /* Trim spaces */ cp = bufp + strlen(bufp) - 1; while (cp >= bufp && isspace((int)*cp)) { *cp = '\0'; cp--; } len = name2oid(bufp, mib); if (len < 0) { if (iflag) return (0); if (qflag) return (1); else { if (errno == ENOENT) { warnx("unknown oid '%s'%s", bufp, line); } else { warn("unknown oid '%s'%s", bufp, line); } return (1); } } if (oidfmt(mib, len, fmt, &kind)) { warn("couldn't find format of oid '%s'%s", bufp, line); if (iflag) return (1); else exit(1); } if (newvalstr == NULL || dflag) { if ((kind & CTLTYPE) == CTLTYPE_NODE) { if (dflag) { i = show_var(mib, len); if (!i && !bflag) putchar('\n'); } sysctl_all(mib, len); } else { i = show_var(mib, len); if (!i && !bflag) putchar('\n'); } } else { if ((kind & CTLTYPE) == CTLTYPE_NODE) { warnx("oid '%s' isn't a leaf node%s", bufp, line); return (1); } if (!(kind & CTLFLAG_WR)) { if (kind & CTLFLAG_TUN) { warnx("oid '%s' is a read only tunable%s", bufp, line); warnx("Tunable values are set in /boot/loader.conf"); } else warnx("oid '%s' is read only%s", bufp, line); return (1); } switch (kind & CTLTYPE) { case CTLTYPE_INT: case CTLTYPE_UINT: case CTLTYPE_LONG: case CTLTYPE_ULONG: case CTLTYPE_S8: case CTLTYPE_S16: case CTLTYPE_S32: case CTLTYPE_S64: case CTLTYPE_U8: case CTLTYPE_U16: case CTLTYPE_U32: case CTLTYPE_U64: if (strlen(newvalstr) == 0) { warnx("empty numeric value"); return (1); } /* FALLTHROUGH */ case CTLTYPE_STRING: break; default: warnx("oid '%s' is type %d," " cannot set that%s", bufp, kind & CTLTYPE, line); return (1); } errno = 0; switch (kind & CTLTYPE) { case CTLTYPE_INT: if (strncmp(fmt, "IK", 2) == 0) intval = strIKtoi(newvalstr, &endptr, fmt); else intval = (int)strtol(newvalstr, &endptr, 0); newval = &intval; newsize = sizeof(intval); break; case CTLTYPE_UINT: uintval = (int) strtoul(newvalstr, &endptr, 0); newval = &uintval; newsize = sizeof(uintval); break; case CTLTYPE_LONG: longval = strtol(newvalstr, &endptr, 0); newval = &longval; newsize = sizeof(longval); break; case CTLTYPE_ULONG: ulongval = strtoul(newvalstr, &endptr, 0); newval = &ulongval; newsize = sizeof(ulongval); break; case CTLTYPE_STRING: newval = newvalstr; break; case CTLTYPE_S8: i8val = (int8_t)strtol(newvalstr, &endptr, 0); newval = &i8val; newsize = sizeof(i8val); break; case CTLTYPE_S16: i16val = (int16_t)strtol(newvalstr, &endptr, 0); newval = &i16val; newsize = sizeof(i16val); break; case CTLTYPE_S32: i32val = (int32_t)strtol(newvalstr, &endptr, 0); newval = &i32val; newsize = sizeof(i32val); break; case CTLTYPE_S64: i64val = strtoimax(newvalstr, &endptr, 0); newval = &i64val; newsize = sizeof(i64val); break; case CTLTYPE_U8: u8val = (uint8_t)strtoul(newvalstr, &endptr, 0); newval = &u8val; newsize = sizeof(u8val); break; case CTLTYPE_U16: u16val = (uint16_t)strtoul(newvalstr, &endptr, 0); newval = &u16val; newsize = sizeof(u16val); break; case CTLTYPE_U32: u32val = (uint32_t)strtoul(newvalstr, &endptr, 0); newval = &u32val; newsize = sizeof(u32val); break; case CTLTYPE_U64: u64val = strtoumax(newvalstr, &endptr, 0); newval = &u64val; newsize = sizeof(u64val); break; default: /* NOTREACHED */ abort(); } if (errno != 0 || endptr == newvalstr || (endptr != NULL && *endptr != '\0')) { warnx("invalid %s '%s'%s", ctl_typename[kind & CTLTYPE], newvalstr, line); return (1); } i = show_var(mib, len); if (sysctl(mib, len, 0, 0, newval, newsize) == -1) { if (!i && !bflag) putchar('\n'); switch (errno) { case EOPNOTSUPP: warnx("%s: value is not available%s", string, line); return (1); case ENOTDIR: warnx("%s: specification is incomplete%s", string, line); return (1); case ENOMEM: warnx("%s: type is unknown to this program%s", string, line); return (1); default: warn("%s%s", string, line); return (1); } } if (!bflag) printf(" -> "); i = nflag; nflag = 1; j = show_var(mib, len); if (!j && !bflag) putchar('\n'); nflag = i; } return (0); } static int parsefile(const char *filename) { FILE *file; char line[BUFSIZ], *p, *pq, *pdq; int warncount = 0, lineno = 0; file = fopen(filename, "r"); if (file == NULL) err(EX_NOINPUT, "%s", filename); while (fgets(line, sizeof(line), file) != NULL) { lineno++; p = line; pq = strchr(line, '\''); pdq = strchr(line, '\"'); /* Replace the first # with \0. */ while((p = strchr(p, '#')) != NULL) { if (pq != NULL && p > pq) { if ((p = strchr(pq+1, '\'')) != NULL) *(++p) = '\0'; break; } else if (pdq != NULL && p > pdq) { if ((p = strchr(pdq+1, '\"')) != NULL) *(++p) = '\0'; break; } else if (p == line || *(p-1) != '\\') { *p = '\0'; break; } p++; } /* Trim spaces */ p = line + strlen(line) - 1; while (p >= line && isspace((int)*p)) { *p = '\0'; p--; } p = line; while (isspace((int)*p)) p++; if (*p == '\0') continue; else warncount += parse(p, lineno); } fclose(file); return (warncount); } /* These functions will dump out various interesting structures. */ static int S_clockinfo(size_t l2, void *p) { struct clockinfo *ci = (struct clockinfo*)p; if (l2 != sizeof(*ci)) { warnx("S_clockinfo %zu != %zu", l2, sizeof(*ci)); return (1); } printf(hflag ? "{ hz = %'d, tick = %'d, profhz = %'d, stathz = %'d }" : "{ hz = %d, tick = %d, profhz = %d, stathz = %d }", ci->hz, ci->tick, ci->profhz, ci->stathz); return (0); } static int S_loadavg(size_t l2, void *p) { struct loadavg *tv = (struct loadavg*)p; if (l2 != sizeof(*tv)) { warnx("S_loadavg %zu != %zu", l2, sizeof(*tv)); return (1); } printf(hflag ? "{ %'.2f %'.2f %'.2f }" : "{ %.2f %.2f %.2f }", (double)tv->ldavg[0]/(double)tv->fscale, (double)tv->ldavg[1]/(double)tv->fscale, (double)tv->ldavg[2]/(double)tv->fscale); return (0); } static int S_timeval(size_t l2, void *p) { struct timeval *tv = (struct timeval*)p; time_t tv_sec; char *p1, *p2; if (l2 != sizeof(*tv)) { warnx("S_timeval %zu != %zu", l2, sizeof(*tv)); return (1); } printf(hflag ? "{ sec = %'jd, usec = %'ld } " : "{ sec = %jd, usec = %ld } ", (intmax_t)tv->tv_sec, tv->tv_usec); tv_sec = tv->tv_sec; p1 = strdup(ctime(&tv_sec)); for (p2=p1; *p2 ; p2++) if (*p2 == '\n') *p2 = '\0'; fputs(p1, stdout); free(p1); return (0); } static int S_vmtotal(size_t l2, void *p) { struct vmtotal *v = (struct vmtotal *)p; int pageKilo = getpagesize() / 1024; if (l2 != sizeof(*v)) { warnx("S_vmtotal %zu != %zu", l2, sizeof(*v)); return (1); } printf( "\nSystem wide totals computed every five seconds:" " (values in kilobytes)\n"); printf("===============================================\n"); printf( "Processes:\t\t(RUNQ: %hd Disk Wait: %hd Page Wait: " "%hd Sleep: %hd)\n", v->t_rq, v->t_dw, v->t_pw, v->t_sl); printf( "Virtual Memory:\t\t(Total: %dK Active: %dK)\n", v->t_vm * pageKilo, v->t_avm * pageKilo); printf("Real Memory:\t\t(Total: %dK Active: %dK)\n", v->t_rm * pageKilo, v->t_arm * pageKilo); printf("Shared Virtual Memory:\t(Total: %dK Active: %dK)\n", v->t_vmshr * pageKilo, v->t_avmshr * pageKilo); printf("Shared Real Memory:\t(Total: %dK Active: %dK)\n", v->t_rmshr * pageKilo, v->t_armshr * pageKilo); printf("Free Memory:\t%dK", v->t_free * pageKilo); return (0); } #ifdef __amd64__ #define efi_next_descriptor(ptr, size) \ ((struct efi_md *)(((uint8_t *) ptr) + size)) static int S_efi_map(size_t l2, void *p) { struct efi_map_header *efihdr; struct efi_md *map; const char *type; size_t efisz; int ndesc, i; static const char *types[] = { "Reserved", "LoaderCode", "LoaderData", "BootServicesCode", "BootServicesData", "RuntimeServicesCode", "RuntimeServicesData", "ConventionalMemory", "UnusableMemory", "ACPIReclaimMemory", "ACPIMemoryNVS", "MemoryMappedIO", "MemoryMappedIOPortSpace", "PalCode" }; /* * Memory map data provided by UEFI via the GetMemoryMap * Boot Services API. */ if (l2 < sizeof(*efihdr)) { warnx("S_efi_map length less than header"); return (1); } efihdr = p; efisz = (sizeof(struct efi_map_header) + 0xf) & ~0xf; map = (struct efi_md *)((uint8_t *)efihdr + efisz); if (efihdr->descriptor_size == 0) return (0); if (l2 != efisz + efihdr->memory_size) { warnx("S_efi_map length mismatch %zu vs %zu", l2, efisz + efihdr->memory_size); return (1); } ndesc = efihdr->memory_size / efihdr->descriptor_size; printf("\n%23s %12s %12s %8s %4s", "Type", "Physical", "Virtual", "#Pages", "Attr"); for (i = 0; i < ndesc; i++, map = efi_next_descriptor(map, efihdr->descriptor_size)) { if (map->md_type <= EFI_MD_TYPE_PALCODE) type = types[map->md_type]; else type = ""; printf("\n%23s %012lx %12p %08lx ", type, map->md_phys, map->md_virt, map->md_pages); if (map->md_attr & EFI_MD_ATTR_UC) printf("UC "); if (map->md_attr & EFI_MD_ATTR_WC) printf("WC "); if (map->md_attr & EFI_MD_ATTR_WT) printf("WT "); if (map->md_attr & EFI_MD_ATTR_WB) printf("WB "); if (map->md_attr & EFI_MD_ATTR_UCE) printf("UCE "); if (map->md_attr & EFI_MD_ATTR_WP) printf("WP "); if (map->md_attr & EFI_MD_ATTR_RP) printf("RP "); if (map->md_attr & EFI_MD_ATTR_XP) printf("XP "); if (map->md_attr & EFI_MD_ATTR_RT) printf("RUNTIME"); } return (0); } #endif #if defined(__amd64__) || defined(__i386__) static int S_bios_smap_xattr(size_t l2, void *p) { struct bios_smap_xattr *smap, *end; if (l2 % sizeof(*smap) != 0) { warnx("S_bios_smap_xattr %zu is not a multiple of %zu", l2, sizeof(*smap)); return (1); } end = (struct bios_smap_xattr *)((char *)p + l2); for (smap = p; smap < end; smap++) printf("\nSMAP type=%02x, xattr=%02x, base=%016jx, len=%016jx", smap->type, smap->xattr, (uintmax_t)smap->base, (uintmax_t)smap->length); return (0); } #endif static int strIKtoi(const char *str, char **endptrp, const char *fmt) { int kelv; float temp; size_t len; const char *p; int prec, i; assert(errno == 0); len = strlen(str); /* caller already checked this */ assert(len > 0); /* * A format of "IK" is in deciKelvin. A format of "IK3" is in * milliKelvin. The single digit following IK is log10 of the * multiplying factor to convert Kelvin into the untis of this sysctl, * or the dividing factor to convert the sysctl value to Kelvin. Numbers * larger than 6 will run into precision issues with 32-bit integers. * Characters that aren't ASCII digits after the 'K' are ignored. No * localization is present because this is an interface from the kernel * to this program (eg not an end-user interface), so isdigit() isn't * used here. */ if (fmt[2] != '\0' && fmt[2] >= '0' && fmt[2] <= '9') prec = fmt[2] - '0'; else prec = 1; p = &str[len - 1]; if (*p == 'C' || *p == 'F' || *p == 'K') { temp = strtof(str, endptrp); if (*endptrp != str && *endptrp == p && errno == 0) { if (*p == 'F') temp = (temp - 32) * 5 / 9; *endptrp = NULL; if (*p != 'K') temp += 273.15; for (i = 0; i < prec; i++) temp *= 10.0; return ((int)(temp + 0.5)); } } else { /* No unit specified -> treat it as a raw number */ kelv = (int)strtol(str, endptrp, 10); if (*endptrp != str && *endptrp == p && errno == 0) { *endptrp = NULL; return (kelv); } } errno = ERANGE; return (0); } /* * These functions uses a presently undocumented interface to the kernel * to walk the tree and get the type so it can print the value. * This interface is under work and consideration, and should probably * be killed with a big axe by the first person who can find the time. * (be aware though, that the proper interface isn't as obvious as it * may seem, there are various conflicting requirements. */ static int name2oid(const char *name, int *oidp) { int oid[2]; int i; size_t j; oid[0] = 0; oid[1] = 3; j = CTL_MAXNAME * sizeof(int); i = sysctl(oid, 2, oidp, &j, name, strlen(name)); if (i < 0) return (i); j /= sizeof(int); return (j); } static int oidfmt(int *oid, int len, char *fmt, u_int *kind) { int qoid[CTL_MAXNAME+2]; u_char buf[BUFSIZ]; int i; size_t j; qoid[0] = 0; qoid[1] = 4; memcpy(qoid + 2, oid, len * sizeof(int)); j = sizeof(buf); i = sysctl(qoid, len + 2, buf, &j, 0, 0); if (i) err(1, "sysctl fmt %d %zu %d", i, j, errno); if (kind) *kind = *(u_int *)buf; if (fmt) strcpy(fmt, (char *)(buf + sizeof(u_int))); return (0); } /* * This formats and outputs the value of one variable * * Returns zero if anything was actually output. * Returns one if didn't know what to do with this. * Return minus one if we had errors. */ static int show_var(int *oid, int nlen) { u_char buf[BUFSIZ], *val, *oval, *p; char name[BUFSIZ], fmt[BUFSIZ]; - const char *sep, *sep1; + const char *sep, *sep1, *prntype; int qoid[CTL_MAXNAME+2]; uintmax_t umv; intmax_t mv; int i, hexlen, sign, ctltype; size_t intlen; size_t j, len; u_int kind; float base; int (*func)(size_t, void *); int prec; /* Silence GCC. */ umv = mv = intlen = 0; bzero(buf, BUFSIZ); bzero(fmt, BUFSIZ); bzero(name, BUFSIZ); qoid[0] = 0; memcpy(qoid + 2, oid, nlen * sizeof(int)); qoid[1] = 1; j = sizeof(name); i = sysctl(qoid, nlen + 2, name, &j, 0, 0); if (i || !j) err(1, "sysctl name %d %zu %d", i, j, errno); oidfmt(oid, nlen, fmt, &kind); /* if Wflag then only list sysctls that are writeable and not stats. */ if (Wflag && ((kind & CTLFLAG_WR) == 0 || (kind & CTLFLAG_STATS) != 0)) return 1; /* if Tflag then only list sysctls that are tuneables. */ if (Tflag && (kind & CTLFLAG_TUN) == 0) return 1; if (Nflag) { printf("%s", name); return (0); } if (eflag) sep = "="; else sep = ": "; - if (dflag) { /* just print description */ + ctltype = (kind & CTLTYPE); + if (tflag || dflag) { + if (!nflag) + printf("%s%s", name, sep); + if (ctl_typename[ctltype] != NULL) + prntype = ctl_typename[ctltype]; + else + prntype = "unknown"; + if (tflag && dflag) + printf("%s%s", prntype, sep); + else if (tflag) { + printf("%s", prntype); + return (0); + } qoid[1] = 5; j = sizeof(buf); i = sysctl(qoid, nlen + 2, buf, &j, 0, 0); - if (!nflag) - printf("%s%s", name, sep); printf("%s", buf); return (0); } /* find an estimate of how much we need for this var */ if (Bflag) j = Bflag; else { j = 0; i = sysctl(oid, nlen, 0, &j, 0, 0); j += j; /* we want to be sure :-) */ } val = oval = malloc(j + 1); if (val == NULL) { warnx("malloc failed"); return (1); } - ctltype = (kind & CTLTYPE); len = j; i = sysctl(oid, nlen, val, &len, 0, 0); if (i != 0 || (len == 0 && ctltype != CTLTYPE_STRING)) { free(oval); return (1); } if (bflag) { fwrite(val, 1, len, stdout); free(oval); return (0); } val[len] = '\0'; p = val; sign = ctl_sign[ctltype]; intlen = ctl_size[ctltype]; switch (ctltype) { case CTLTYPE_STRING: if (!nflag) printf("%s%s", name, sep); printf("%.*s", (int)len, p); free(oval); return (0); case CTLTYPE_INT: case CTLTYPE_UINT: case CTLTYPE_LONG: case CTLTYPE_ULONG: case CTLTYPE_S8: case CTLTYPE_S16: case CTLTYPE_S32: case CTLTYPE_S64: case CTLTYPE_U8: case CTLTYPE_U16: case CTLTYPE_U32: case CTLTYPE_U64: if (!nflag) printf("%s%s", name, sep); hexlen = 2 + (intlen * CHAR_BIT + 3) / 4; sep1 = ""; while (len >= intlen) { switch (kind & CTLTYPE) { case CTLTYPE_INT: case CTLTYPE_UINT: umv = *(u_int *)p; mv = *(int *)p; break; case CTLTYPE_LONG: case CTLTYPE_ULONG: umv = *(u_long *)p; mv = *(long *)p; break; case CTLTYPE_S8: case CTLTYPE_U8: umv = *(uint8_t *)p; mv = *(int8_t *)p; break; case CTLTYPE_S16: case CTLTYPE_U16: umv = *(uint16_t *)p; mv = *(int16_t *)p; break; case CTLTYPE_S32: case CTLTYPE_U32: umv = *(uint32_t *)p; mv = *(int32_t *)p; break; case CTLTYPE_S64: case CTLTYPE_U64: umv = *(uint64_t *)p; mv = *(int64_t *)p; break; } fputs(sep1, stdout); if (xflag) printf("%#0*jx", hexlen, umv); else if (!sign) printf(hflag ? "%'ju" : "%ju", umv); else if (fmt[1] == 'K') { if (mv < 0) printf("%jd", mv); else { /* * See strIKtoi for details on fmt. */ prec = 1; if (fmt[2] != '\0') prec = fmt[2] - '0'; base = 1.0; for (int i = 0; i < prec; i++) base *= 10.0; printf("%.*fC", prec, (float)mv / base - 273.15); } } else printf(hflag ? "%'jd" : "%jd", mv); sep1 = " "; len -= intlen; p += intlen; } free(oval); return (0); case CTLTYPE_OPAQUE: i = 0; if (strcmp(fmt, "S,clockinfo") == 0) func = S_clockinfo; else if (strcmp(fmt, "S,timeval") == 0) func = S_timeval; else if (strcmp(fmt, "S,loadavg") == 0) func = S_loadavg; else if (strcmp(fmt, "S,vmtotal") == 0) func = S_vmtotal; #ifdef __amd64__ else if (strcmp(fmt, "S,efi_map_header") == 0) func = S_efi_map; #endif #if defined(__amd64__) || defined(__i386__) else if (strcmp(fmt, "S,bios_smap_xattr") == 0) func = S_bios_smap_xattr; #endif else func = NULL; if (func) { if (!nflag) printf("%s%s", name, sep); i = (*func)(len, p); free(oval); return (i); } /* FALLTHROUGH */ default: if (!oflag && !xflag) { free(oval); return (1); } if (!nflag) printf("%s%s", name, sep); printf("Format:%s Length:%zu Dump:0x", fmt, len); while (len-- && (xflag || p < val + 16)) printf("%02x", *p++); if (!xflag && len > 16) printf("..."); free(oval); return (0); } free(oval); return (1); } static int sysctl_all(int *oid, int len) { int name1[22], name2[22]; int i, j; size_t l1, l2; name1[0] = 0; name1[1] = 2; l1 = 2; if (len) { memcpy(name1+2, oid, len * sizeof(int)); l1 += len; } else { name1[2] = 1; l1++; } for (;;) { l2 = sizeof(name2); j = sysctl(name1, l1, name2, &l2, 0, 0); if (j < 0) { if (errno == ENOENT) return (0); else err(1, "sysctl(getnext) %d %zu", j, l2); } l2 /= sizeof(int); if (len < 0 || l2 < (unsigned int)len) return (0); for (i = 0; i < len; i++) if (name2[i] != oid[i]) return (0); i = show_var(name2, l2); if (!i && !bflag) putchar('\n'); memcpy(name1+2, name2, l2 * sizeof(int)); l1 = 2 + l2; } }