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[unix-history] / sbin / init.chmr / cf_table.c
/*
* Copyright (c) 1993 Christoph M. Robitschko
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christoph M. Robitschko
* 4. The name of the author may not be used to endorse or promote products
* derived from this software withough specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* cf_table.c
* The table of words that the configuration subsystem understands,
* along with local support functions.
*/
#ifdef CONFIGURE
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <ttyent.h>
#include <sys/types.h>
#include <sys/signal.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <sys/file.h>
#include "init.h"
#include "prototypes.h"
#include "cf_defs.h"
/* Prototypes for static functions */
static int conf_env(char *, int, int, char **, int);
static int conf_include(char *, int, int, char **, int);
static int conf_waittimes(char *, int, int, char **, int);
/* static variables */
static struct rlimit proclimits[RLIM_NLIMITS];
/* extern variables, referenced inb Commands table */
extern int startup_single;
extern struct ttyent RCent_auto;
extern struct ttyent RCent_fast;
extern struct ttyent Single_ent;
extern int retrytime;
extern int timeout_m2s_KILL;
extern int timeout_m2s_TERM;
extern int checkstatus;
extern int checktime;
#ifdef __STDC__
# define CURLIM(_lim_) &proclimits[RLIMIT_##_lim_].rlim_cur
# define MAXLIM(_lim_) &proclimits[RLIMIT_##_lim_].rlim_max
#else
# define CURLIM(_lim_) &proclimits[RLIMIT_/**/_lim_].rlim_cur
# define MAXLIM(_lim_) &proclimits[RLIMIT_/**/_lim_].rlim_max
#endif
/*
* The table of all known words and actions
*/
const struct Command Commands[] = {
#ifdef DEBUG
{"debug_level", 0+SUB, T_EX, 0, NOVAR},
{"LEVEL", 1, T_INT, MAXVAL, &debug, {5}},
#endif
{"startup_state", 0+SUB, T_EX, 0, NOVAR},
{"singleuser_mode", 1, T_EX, 0, &startup_single, {1}},
{"multiuser_mode", 1, T_EX, 0, &startup_single, {0}},
{"setenv", 0+SUB, T_EX, 0, NOVAR},
{"VAR", 1+SUB, T_STR, 0, NOVAR},
{"STRING", 2, T_STR, CFUNC, conf_env, {0}},
{"include", 0+SUB, T_EX, 0, NOVAR},
{"FILE", 1, T_STR, CFUNC, conf_include, {0}},
{"singleusershell", 0+SUB, T_EX, 0, NOVAR},
{"COMMAND", 1, T_STR, 0, &Single_ent.ty_getty, {0}},
{"singleuserterminal", 0+SUB, T_EX, 0, NOVAR},
{"TYPE", 1, T_STR, 0, &Single_ent.ty_type, {0}},
{"singleuserdevice", 0+SUB, T_EX, 0, NOVAR},
{"DEVICE", 1, T_STR, 0, &Single_ent.ty_name, {0}},
{"autobootcommand", 0+SUB, T_EX, 0, NOVAR},
{"COMMAND", 1, T_STR, 0, &RCent_auto.ty_getty, {0}},
{"fastbootcommand", 0+SUB, T_EX, 0, NOVAR},
{"COMMAND", 1, T_STR, 0, &RCent_fast.ty_getty, {0}},
{"timeout", 0+SUB, T_EX, 0, NOVAR},
{"shutdown", 1+SUB, T_EX, 0, NOVAR},
{"sigterm", 2+SUB, T_EX, 0, NOVAR},
{"TIMEOUT", 3, T_INT, MAXVAL, &timeout_m2s_TERM, {300}},
{"sigkill", 2+SUB, T_EX, 0, NOVAR},
{"TIMEOUT", 3, T_INT, MAXVAL, &timeout_m2s_KILL, {300}},
{"error-retry", 1+SUB, T_EX, 0, NOVAR},
{"TIME", 2, T_TIME, 0, &retrytime, {0}},
{"respawn", 0+SUB, T_EX, 0, NOVAR},
{"checkstatus", 1+SUB, T_EX, 0, NOVAR},
{"yes", 2, T_EX, 0, &checkstatus, {1}},
{"on", 2, T_EX, 0, &checkstatus, {1}},
{"no", 2, T_EX, 0, &checkstatus, {0}},
{"off", 2, T_EX, 0, &checkstatus, {0}},
{"checktime", 1+SUB, T_EX, 0, NOVAR},
{"yes", 2, T_EX, 0, &checktime, {DEF_CHECKTIME}},
{"on", 2, T_EX, 0, &checktime, {DEF_CHECKTIME}},
{"no", 2, T_EX, 0, &checktime, {0}},
{"off", 2, T_EX, 0, &checktime, {0}},
{"TIMEOUT", 2, T_TIME, MAXVAL, &checktime, {300}},
{"waittimes", 1+SUB, T_EX, 0, NOVAR},
{"delete_list", 2, T_EX, CFUNC, conf_waittimes, {1}},
{"add_list", 2+SUB, T_EX, 0, NOVAR},
{"TIME", 3, T_TIME, CFUNC, conf_waittimes, {2}},
{"limit", 0+SUB, T_EX, 0, NOVAR},
{"cputime", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, CURLIM(CPU), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_TIME, 0, CURLIM(CPU), {0}},
{"filesize", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, CURLIM(FSIZE), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_BYTE, 0, CURLIM(FSIZE), {0}},
{"datasize", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, CURLIM(DATA), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_BYTE, 0, CURLIM(DATA), {0}},
{"stacksize", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, CURLIM(STACK), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_BYTE, 0, CURLIM(STACK), {0}},
{"coredumpsize", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, CURLIM(CORE), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_BYTE, 0, CURLIM(CORE), {0}},
{"memoryuse", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, CURLIM(RSS), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_BYTE, 0, CURLIM(RSS), {0}},
{"memorylocked", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, CURLIM(MEMLOCK), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_BYTE, 0, CURLIM(MEMLOCK), {0}},
{"maxprocesses", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, CURLIM(NPROC), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_INT, 0, CURLIM(NPROC), {0}},
{"openfiles", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, CURLIM(OFILE), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_INT, 0, CURLIM(OFILE), {0}},
{"hardlimit", 0+SUB, T_EX, 0, NOVAR},
{"cputime", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, MAXLIM(CPU), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_TIME, NRAISE, MAXLIM(CPU), {0}},
{"filesize", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, MAXLIM(FSIZE), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_BYTE, NRAISE, MAXLIM(FSIZE), {0}},
{"datasize", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, MAXLIM(DATA), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_BYTE, NRAISE, MAXLIM(DATA), {0}},
{"stacksize", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, MAXLIM(STACK), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_BYTE, NRAISE, MAXLIM(STACK), {0}},
{"coredumpsize", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, MAXLIM(CORE), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_BYTE, NRAISE, MAXLIM(CORE), {0}},
{"memoryuse", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, MAXLIM(RSS), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_BYTE, NRAISE, MAXLIM(RSS), {0}},
{"memorylocked", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, MAXLIM(MEMLOCK), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_BYTE, NRAISE, MAXLIM(MEMLOCK), {0}},
{"maxprocesses", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, MAXLIM(NPROC), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_INT, NRAISE, MAXLIM(NPROC), {0}},
{"openfiles", 1+SUB, T_EX, 0, NOVAR},
{"unlimited", 2, T_EX, 0, MAXLIM(OFILE), {RLIM_INFINITY}},
{"default", 2, T_EX, 0, NOVAR},
{"LIMIT", 2, T_INT, NRAISE, MAXLIM(OFILE), {0}},
};
const int NCommands = (sizeof(Commands) / sizeof(struct Command));
/*
* INIT-specific functions for configuration
*/
/*
* SETCONF
* called in each new process to set up configured things
*/
void
setconf(void)
{
int f;
Debug (4, "Setting configuration");
for (f=0; f< RLIM_NLIMITS; f++)
(void) setrlimit(f, &proclimits[f]);
Debug(4, "Setting configuration completed");
}
/*
* GETCONF
* prepare for configuration
* called once before configure().
*/
void
getconf(void)
{
int f;
for (f=0; f< RLIM_NLIMITS; f++)
(void) getrlimit(f, &proclimits[f]);
}
/*
* CHECKCONF
* check configured things etc.
* called once after configure().
*/
void
checkconf(void)
{
int f;
/* Do not allow soft limits to be higher than the hard limits */
for (f=0; f<RLIM_NLIMITS; f++)
if (proclimits[f].rlim_cur > proclimits[f].rlim_max)
proclimits[f].rlim_cur = proclimits[f].rlim_max;
}
/*
* Support functions, referenced in Commands table
*/
/* Set an environment variable from the configuration file */
static int
conf_env(configfile, lineno, argc, argv, what)
char *configfile;
int lineno;
int argc;
char **argv;
int what;
{
iputenv(argv[1], argv[2]);
return(0);
}
/* Include another configuration file */
static int
conf_include(configfile, lineno, argc, argv, what)
char *configfile;
int lineno;
int argc;
char **argv;
int what;
{
configure(argv[1]);
return(0);
}
/* Configure the times to wait before restarting a getty that has failed */
static int
conf_waittimes(configfile, lineno, argc, argv, what)
char *configfile;
int lineno;
int argc;
char **argv;
int what;
{
Debug(0, "conf_waittimes not yet implemented.");
return(0);
}
#endif
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.