MFp4 (imp_freebsd branch): snapshot of devd work:
o improve parsing and lexing o create data structures based on the parsed file now. o Still need to rewrite main loop and add regex (still uses hard coded devd-generic) o minor man page updates. # There should be one more commit before rc2 Approved by: re (blanket)
This commit is contained in:
Warner Losh
parent
b77b2b6ed3
commit
3054f218eb
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=107665
@ -1,9 +1,9 @@
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# $FreeBSD$
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PROG= devd
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SRCS= devd.c token.l parse.y y.tab.h
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PROG_CXX=devd
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SRCS= devd.cc token.l parse.y y.tab.h
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MAN= devd.8 devd.conf.5
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WARNS?= 5
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#WARNS?= 5
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DPADD= ${LIBL}
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LDADD= -ll
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223
sbin/devd/devd.c
223
sbin/devd/devd.c
@ -1,223 +0,0 @@
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/*-
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* Copyright (c) 2002 M. Warner Losh.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
|
||||
* are met:
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||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
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||||
* 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.
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||||
*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* DEVD control daemon.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <errno.h>
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#include <err.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include "devd.h"
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#define CF "/etc/devd.conf"
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extern FILE *yyin;
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extern int lineno;
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int dflag;
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int romeo_must_die = 0;
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struct file_list_head dirlist = TAILQ_HEAD_INITIALIZER(dirlist);
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static void event_loop(void);
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static void parse(void);
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static void parse_config_file(const char *fn);
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static void parse_files_in_dir(const char *dirname);
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static void reset_config(void);
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static void usage(void);
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void
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add_directory(const char *dir)
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{
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struct file_list *elm;
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elm = malloc(sizeof(*elm));
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elm->path = strdup(dir);
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TAILQ_INSERT_TAIL(&dirlist, elm, fl_link);
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}
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static void
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reset_config(void)
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{
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struct file_list *flp;
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TAILQ_FOREACH(flp, &dirlist, fl_link) {
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free(flp->path);
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free(flp);
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}
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}
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static void
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parse_config_file(const char *fn)
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{
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if (dflag)
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printf("Parsing %s\n", fn);
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yyin = fopen(fn, "r");
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if (yyin == NULL)
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err(1, "Cannot open config file %s", fn);
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if (yyparse() != 0)
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errx(1, "Cannot parse %s at line %d", fn, lineno);
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fclose(yyin);
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}
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static void
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parse_files_in_dir(const char *dirname)
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{
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DIR *dirp;
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struct dirent *dp;
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char path[PATH_MAX];
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if (dflag)
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printf("Parsing files in %s\n", dirname);
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dirp = opendir(dirname);
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if (dirp == NULL)
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return;
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readdir(dirp); /* Skip . */
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readdir(dirp); /* Skip .. */
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while ((dp = readdir(dirp)) != NULL) {
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if (strcmp(dp->d_name + dp->d_namlen - 5, ".conf") == 0) {
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snprintf(path, sizeof(path), "%s/%s",
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dirname, dp->d_name);
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parse_config_file(path);
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}
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}
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}
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static void
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parse(void)
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{
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struct file_list *flp;
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parse_config_file(CF);
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TAILQ_FOREACH(flp, &dirlist, fl_link) {
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parse_files_in_dir(flp->path);
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}
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}
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static void
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process_event(const char *buffer)
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{
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char type;
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char cmd[1024];
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char *sp;
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// Ignore unknown devices for now.
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if (*buffer == '?')
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return;
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type = *buffer++;
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sp = strchr(buffer, ' ');
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if (sp == NULL)
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return; /* Can't happen? */
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*sp = '\0';
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snprintf(cmd, sizeof(cmd), "/etc/devd-generic %s %s", buffer,
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type == '+' ? "start" : "stop");
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if (dflag)
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printf("Trying '%s'\n", cmd);
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system(cmd);
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}
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static void
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event_loop(void)
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{
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int rv;
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int fd;
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char buffer[1024 + 1]; /* XXX */
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fd = open("/dev/devctl", O_RDONLY); /* XXX */
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if (fd == -1)
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err(1, "Can't open devctl");
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if (fcntl(fd, F_SETFD, FD_CLOEXEC) != 0)
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err(1, "Can't set close-on-exec flag");
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while (1) {
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if (romeo_must_die)
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break;
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rv = read(fd, buffer, sizeof(buffer) - 1);
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if (rv > 0) {
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buffer[rv] = '\0';
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while (buffer[--rv] == '\n')
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buffer[rv] = '\0';
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process_event(buffer);
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} else if (rv < 0) {
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if (errno != EINTR)
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break;
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} else {
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/* EOF */
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break;
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}
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}
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close(fd);
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}
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static void
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gensighand(int foo __unused)
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{
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romeo_must_die++;
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}
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static void
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usage()
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{
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fprintf(stderr, "usage: %s [-d]", getprogname());
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exit(1);
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}
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int
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main(int argc, char **argv)
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{
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int ch;
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while ((ch = getopt(argc, argv, "d")) != -1) {
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switch (ch) {
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case 'd':
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dflag++;
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break;
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default:
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usage();
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}
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}
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reset_config();
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parse();
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if (!dflag)
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daemon(0, 0);
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event_loop();
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signal(SIGHUP, gensighand);
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signal(SIGINT, gensighand);
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signal(SIGTERM, gensighand);
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return (0);
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}
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591
sbin/devd/devd.cc
Normal file
591
sbin/devd/devd.cc
Normal file
@ -0,0 +1,591 @@
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/*-
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* Copyright (c) 2002 M. Warner Losh.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* 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.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
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||||
*/
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/*
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* DEVD control daemon.
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*/
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// TODO list:
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// o rewrite the main loop:
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// - expand variables
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// - find best match
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// - execute it.
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// o need to insert the event_proc structures in order of priority.
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// bigger numbers mean higher priority.
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// o devd.conf and devd man pages need a lot of help:
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// - devd.conf needs to lose the warning about zone files.
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// - devd.conf needs more details on the supported statements.
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// - devd.conf needs an example or two.
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <errno.h>
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#include <err.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <map>
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#include <string>
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#include <vector>
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#include "devd.h"
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#define CF "/etc/devd.conf"
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using namespace std;
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extern FILE *yyin;
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extern int lineno;
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int dflag;
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int romeo_must_die = 0;
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static void event_loop(void);
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static void usage(void);
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class config;
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class var_list
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{
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public:
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var_list() {}
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virtual ~var_list() {}
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void set_variable(const string &var, const string &val);
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const string &get_variable(const string &var) const;
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bool is_set(const string &var) const;
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static const string bogus;
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static const string nothing;
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private:
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map<string, string> _vars;
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};
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class eps
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{
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public:
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eps() {}
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virtual ~eps() {}
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virtual bool do_match(config &) = 0;
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virtual bool do_action(config &) = 0;
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};
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class match : public eps
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{
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public:
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match(const char *var, const char *re);
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virtual ~match();
|
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virtual bool do_match(config &);
|
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virtual bool do_action(config &) { return true; }
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private:
|
||||
string _var;
|
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string _re;
|
||||
};
|
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|
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class action : public eps
|
||||
{
|
||||
public:
|
||||
action(const char *cmd);
|
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virtual ~action();
|
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virtual bool do_match(config &) { return true; }
|
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virtual bool do_action(config &);
|
||||
private:
|
||||
string _cmd;
|
||||
};
|
||||
|
||||
class event_proc
|
||||
{
|
||||
public:
|
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event_proc();
|
||||
virtual ~event_proc();
|
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int get_priority() { return (_prio); }
|
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void set_priority(int prio) { _prio = prio; }
|
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void add(eps *);
|
||||
bool matches(config &);
|
||||
bool run(config &);
|
||||
private:
|
||||
int _prio;
|
||||
vector<eps *> _epsvec;
|
||||
};
|
||||
|
||||
class config
|
||||
{
|
||||
public:
|
||||
config() : _pidfile("") { push_var_table(); }
|
||||
virtual ~config() { reset(); }
|
||||
void add_attach(int, event_proc *);
|
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void add_detach(int, event_proc *);
|
||||
void add_directory(const char *);
|
||||
void add_nomatch(int, event_proc *);
|
||||
void set_pidfile(const char *);
|
||||
void reset();
|
||||
void parse();
|
||||
void drop_pidfile();
|
||||
void push_var_table();
|
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void pop_var_table();
|
||||
void set_variable(const char *var, const char *val);
|
||||
const string &get_variable(const string &var);
|
||||
const string &expand_string(const string &var);
|
||||
protected:
|
||||
void parse_one_file(const char *fn);
|
||||
void parse_files_in_dir(const char *dirname);
|
||||
private:
|
||||
vector<string> _dir_list;
|
||||
string _pidfile;
|
||||
vector<var_list *> _var_list_table;
|
||||
vector<event_proc *> _attach_list;
|
||||
vector<event_proc *> _detach_list;
|
||||
vector<event_proc *> _nomatch_list;
|
||||
};
|
||||
|
||||
config cfg;
|
||||
|
||||
event_proc::event_proc() : _prio(-1)
|
||||
{
|
||||
// nothing
|
||||
}
|
||||
|
||||
event_proc::~event_proc()
|
||||
{
|
||||
vector<eps *>::const_iterator i;
|
||||
|
||||
for (i = _epsvec.begin(); i != _epsvec.end(); i++)
|
||||
delete *i;
|
||||
_epsvec.clear();
|
||||
}
|
||||
|
||||
void
|
||||
event_proc::add(eps *eps)
|
||||
{
|
||||
_epsvec.push_back(eps);
|
||||
}
|
||||
|
||||
bool
|
||||
event_proc::matches(config &c)
|
||||
{
|
||||
vector<eps *>::const_iterator i;
|
||||
|
||||
for (i = _epsvec.begin(); i != _epsvec.end(); i++)
|
||||
if (!(*i)->do_match(c))
|
||||
return (false);
|
||||
return (true);
|
||||
}
|
||||
|
||||
bool
|
||||
event_proc::run(config &c)
|
||||
{
|
||||
vector<eps *>::const_iterator i;
|
||||
|
||||
for (i = _epsvec.begin(); i != _epsvec.end(); i++)
|
||||
if (!(*i)->do_action(c))
|
||||
return (false);
|
||||
return (true);
|
||||
}
|
||||
|
||||
action::action(const char *cmd)
|
||||
: _cmd(cmd)
|
||||
{
|
||||
// nothing
|
||||
}
|
||||
|
||||
action::~action()
|
||||
{
|
||||
// nothing
|
||||
}
|
||||
|
||||
bool
|
||||
action::do_action(config &)
|
||||
{
|
||||
// this is lame because we don't expand variables.
|
||||
// xxx
|
||||
::system(_cmd.c_str());
|
||||
return (true);
|
||||
}
|
||||
|
||||
match::match(const char *var, const char *re)
|
||||
: _var(var), _re(re)
|
||||
{
|
||||
// nothing
|
||||
}
|
||||
|
||||
match::~match()
|
||||
{
|
||||
// nothing
|
||||
}
|
||||
|
||||
bool
|
||||
match::do_match(config &)
|
||||
{
|
||||
// XXX
|
||||
return false;
|
||||
}
|
||||
|
||||
const string var_list::bogus = "_$_$_$_$_B_O_G_U_S_$_$_$_$_";
|
||||
const string var_list::nothing = "";
|
||||
|
||||
const string &
|
||||
var_list::get_variable(const string &var) const
|
||||
{
|
||||
map<string, string>::const_iterator i;
|
||||
|
||||
i = _vars.find(var);
|
||||
if (i == _vars.end())
|
||||
return var_list::bogus;
|
||||
return (i->second);
|
||||
}
|
||||
|
||||
bool
|
||||
var_list::is_set(const string &var) const
|
||||
{
|
||||
return (_vars.find(var) != _vars.end());
|
||||
}
|
||||
|
||||
void
|
||||
var_list::set_variable(const string &var, const string &val)
|
||||
{
|
||||
_vars[var] = val;
|
||||
}
|
||||
|
||||
void
|
||||
config::reset(void)
|
||||
{
|
||||
_dir_list.clear();
|
||||
_var_list_table.clear();
|
||||
// XXX need to cleanup _{attach,detach,nomatch}_list
|
||||
}
|
||||
|
||||
void
|
||||
config::parse_one_file(const char *fn)
|
||||
{
|
||||
if (dflag)
|
||||
printf("Parsing %s\n", fn);
|
||||
yyin = fopen(fn, "r");
|
||||
if (yyin == NULL)
|
||||
err(1, "Cannot open config file %s", fn);
|
||||
if (yyparse() != 0)
|
||||
errx(1, "Cannot parse %s at line %d", fn, lineno);
|
||||
fclose(yyin);
|
||||
}
|
||||
|
||||
void
|
||||
config::parse_files_in_dir(const char *dirname)
|
||||
{
|
||||
DIR *dirp;
|
||||
struct dirent *dp;
|
||||
char path[PATH_MAX];
|
||||
|
||||
if (dflag)
|
||||
printf("Parsing files in %s\n", dirname);
|
||||
dirp = opendir(dirname);
|
||||
if (dirp == NULL)
|
||||
return;
|
||||
readdir(dirp); /* Skip . */
|
||||
readdir(dirp); /* Skip .. */
|
||||
while ((dp = readdir(dirp)) != NULL) {
|
||||
if (strcmp(dp->d_name + dp->d_namlen - 5, ".conf") == 0) {
|
||||
snprintf(path, sizeof(path), "%s/%s",
|
||||
dirname, dp->d_name);
|
||||
parse_one_file(path);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
config::parse(void)
|
||||
{
|
||||
vector<string>::const_iterator i;
|
||||
|
||||
parse_one_file(CF);
|
||||
for (i = _dir_list.begin(); i != _dir_list.end(); i++)
|
||||
parse_files_in_dir((*i).c_str());
|
||||
}
|
||||
|
||||
void
|
||||
config::drop_pidfile()
|
||||
{
|
||||
FILE *fp;
|
||||
|
||||
if (_pidfile == "")
|
||||
return;
|
||||
fp = fopen(_pidfile.c_str(), "w");
|
||||
if (fp == NULL)
|
||||
return;
|
||||
fprintf(fp, "%d\n", getpid());
|
||||
fclose(fp);
|
||||
}
|
||||
|
||||
void
|
||||
config::add_attach(int prio, event_proc *p)
|
||||
{
|
||||
p->set_priority(prio);
|
||||
_attach_list.push_back(p);
|
||||
}
|
||||
|
||||
void
|
||||
config::add_detach(int prio, event_proc *p)
|
||||
{
|
||||
p->set_priority(prio);
|
||||
_detach_list.push_back(p);
|
||||
}
|
||||
|
||||
void
|
||||
config::add_directory(const char *dir)
|
||||
{
|
||||
_dir_list.push_back(string(dir));
|
||||
}
|
||||
|
||||
void
|
||||
config::add_nomatch(int prio, event_proc *p)
|
||||
{
|
||||
p->set_priority(prio);
|
||||
_nomatch_list.push_back(p);
|
||||
}
|
||||
|
||||
void
|
||||
config::set_pidfile(const char *fn)
|
||||
{
|
||||
_pidfile = string(fn);
|
||||
}
|
||||
|
||||
void
|
||||
config::push_var_table()
|
||||
{
|
||||
var_list *vl;
|
||||
|
||||
vl = new var_list();
|
||||
_var_list_table.push_back(vl);
|
||||
}
|
||||
|
||||
void
|
||||
config::pop_var_table()
|
||||
{
|
||||
delete _var_list_table.back();
|
||||
_var_list_table.pop_back();
|
||||
}
|
||||
|
||||
void
|
||||
config::set_variable(const char *var, const char *val)
|
||||
{
|
||||
_var_list_table.back()->set_variable(var, val);
|
||||
}
|
||||
|
||||
const string &
|
||||
config::get_variable(const string &var)
|
||||
{
|
||||
vector<var_list *>::reverse_iterator i;
|
||||
|
||||
for (i = _var_list_table.rbegin(); i != _var_list_table.rend(); i++) {
|
||||
if ((*i)->is_set(var))
|
||||
return (var);
|
||||
}
|
||||
return (var_list::nothing);
|
||||
}
|
||||
|
||||
const string &
|
||||
config::expand_string(const string &)
|
||||
{
|
||||
return var_list::bogus;
|
||||
}
|
||||
|
||||
|
||||
static void
|
||||
process_event(const char *buffer)
|
||||
{
|
||||
char type;
|
||||
char cmd[1024];
|
||||
char *sp;
|
||||
|
||||
// XXX should involve config
|
||||
// XXX and set some variables
|
||||
// XXX run the list and so forth
|
||||
|
||||
// Ignore unknown devices for now.
|
||||
if (*buffer == '?')
|
||||
return;
|
||||
type = *buffer++;
|
||||
sp = strchr(buffer, ' ');
|
||||
if (sp == NULL)
|
||||
return; /* Can't happen? */
|
||||
*sp = '\0';
|
||||
snprintf(cmd, sizeof(cmd), "/etc/devd-generic %s %s", buffer,
|
||||
type == '+' ? "start" : "stop");
|
||||
if (dflag)
|
||||
printf("Trying '%s'\n", cmd);
|
||||
system(cmd);
|
||||
}
|
||||
|
||||
static void
|
||||
event_loop(void)
|
||||
{
|
||||
int rv;
|
||||
int fd;
|
||||
char buffer[DEVCTL_MAXBUF];
|
||||
|
||||
fd = open(PATH_DEVCTL, O_RDONLY);
|
||||
if (fd == -1)
|
||||
err(1, "Can't open devctl");
|
||||
if (fcntl(fd, F_SETFD, FD_CLOEXEC) != 0)
|
||||
err(1, "Can't set close-on-exec flag");
|
||||
while (1) {
|
||||
if (romeo_must_die)
|
||||
break;
|
||||
rv = read(fd, buffer, sizeof(buffer) - 1);
|
||||
if (rv > 0) {
|
||||
buffer[rv] = '\0';
|
||||
while (buffer[--rv] == '\n')
|
||||
buffer[rv] = '\0';
|
||||
process_event(buffer);
|
||||
} else if (rv < 0) {
|
||||
if (errno != EINTR)
|
||||
break;
|
||||
} else {
|
||||
/* EOF */
|
||||
break;
|
||||
}
|
||||
}
|
||||
close(fd);
|
||||
}
|
||||
|
||||
/*
|
||||
* functions that the parser uses.
|
||||
*/
|
||||
void
|
||||
add_attach(int prio, event_proc *p)
|
||||
{
|
||||
cfg.add_attach(prio, p);
|
||||
}
|
||||
|
||||
void
|
||||
add_detach(int prio, event_proc *p)
|
||||
{
|
||||
cfg.add_detach(prio, p);
|
||||
}
|
||||
|
||||
void
|
||||
add_directory(const char *dir)
|
||||
{
|
||||
cfg.add_directory(dir);
|
||||
free(const_cast<char *>(dir));
|
||||
}
|
||||
|
||||
void
|
||||
add_nomatch(int prio, event_proc *p)
|
||||
{
|
||||
cfg.add_nomatch(prio, p);
|
||||
}
|
||||
|
||||
event_proc *
|
||||
add_to_event_proc(event_proc *ep, eps *eps)
|
||||
{
|
||||
if (ep == NULL)
|
||||
ep = new event_proc();
|
||||
ep->add(eps);
|
||||
return (ep);
|
||||
}
|
||||
|
||||
eps *
|
||||
new_action(const char *cmd)
|
||||
{
|
||||
eps *e = new action(cmd);
|
||||
free(const_cast<char *>(cmd));
|
||||
return (e);
|
||||
}
|
||||
|
||||
eps *
|
||||
new_match(const char *var, const char *re)
|
||||
{
|
||||
eps *e = new match(var, re);
|
||||
free(const_cast<char *>(var));
|
||||
free(const_cast<char *>(re));
|
||||
return (e);
|
||||
}
|
||||
|
||||
void
|
||||
set_pidfile(const char *name)
|
||||
{
|
||||
cfg.set_pidfile(name);
|
||||
free(const_cast<char *>(name));
|
||||
}
|
||||
|
||||
void
|
||||
set_variable(const char *var, const char *val)
|
||||
{
|
||||
cfg.set_variable(var, val);
|
||||
free(const_cast<char *>(var));
|
||||
free(const_cast<char *>(val));
|
||||
}
|
||||
|
||||
|
||||
|
||||
static void
|
||||
gensighand(int)
|
||||
{
|
||||
romeo_must_die++;
|
||||
_exit(0);
|
||||
}
|
||||
|
||||
static void
|
||||
usage()
|
||||
{
|
||||
fprintf(stderr, "usage: %s [-d]", getprogname());
|
||||
exit(1);
|
||||
}
|
||||
|
||||
/*
|
||||
* main
|
||||
*/
|
||||
int
|
||||
main(int argc, char **argv)
|
||||
{
|
||||
int ch;
|
||||
|
||||
while ((ch = getopt(argc, argv, "d")) != -1) {
|
||||
switch (ch) {
|
||||
case 'd':
|
||||
dflag++;
|
||||
break;
|
||||
default:
|
||||
usage();
|
||||
}
|
||||
}
|
||||
|
||||
cfg.parse();
|
||||
if (!dflag)
|
||||
daemon(0, 0);
|
||||
cfg.drop_pidfile();
|
||||
signal(SIGHUP, gensighand);
|
||||
signal(SIGINT, gensighand);
|
||||
signal(SIGTERM, gensighand);
|
||||
event_loop();
|
||||
return (0);
|
||||
}
|
||||
@ -1,21 +1,22 @@
|
||||
// $FreeBSD$
|
||||
//
|
||||
// Refer to devd.conf(5) and devd(8) man pages for the details on how to
|
||||
// run and configure devd.
|
||||
//
|
||||
# $FreeBSD$
|
||||
#
|
||||
# Refer to devd.conf(5) and devd(8) man pages for the details on how to
|
||||
# run and configure devd.
|
||||
#
|
||||
|
||||
// NB: All regular expressions have an implicit ^$ around them.
|
||||
# NB: All regular expressions have an implicit ^$ around them.
|
||||
# NB: device-name is shorthand for 'match device-name'
|
||||
|
||||
options {
|
||||
// Each directory directive adds a directory the list of directories
|
||||
// that we scan for files. Files are read-in in the order that they
|
||||
// are returned from readdir(3). The rule-sets are combined to
|
||||
// create a DFA that's used to match events to actions.
|
||||
# Each directory directive adds a directory the list of directories
|
||||
# that we scan for files. Files are read-in in the order that they
|
||||
# are returned from readdir(3). The rule-sets are combined to
|
||||
# create a DFA that's used to match events to actions.
|
||||
directory "/etc/devd";
|
||||
directory "/usr/local/etc/devd";
|
||||
pid-file "/var/run/devd.pid";
|
||||
|
||||
// Setup some shorthand for regex that we use later in the file.
|
||||
# Setup some shorthand for regex that we use later in the file.
|
||||
set ethernet-nic-regex
|
||||
"(an|ar|aue|awi|bge|cm|cnw|cs|cue|dc|de|ed|el|em|ep|ex|\
|
||||
fe|fxp|gem|gx|hme|ie|kue|lge|lnc|my|nge|pcn|ray|rl|\
|
||||
@ -25,15 +26,13 @@ options {
|
||||
stg|sym|wds)[0-9]+";
|
||||
};
|
||||
|
||||
// Note that the attach/detach with the highest value wins, so that one can
|
||||
// override these general rules.
|
||||
# Note that the attach/detach with the highest value wins, so that one can
|
||||
# override these general rules.
|
||||
|
||||
// NB: device-name is shorthand for 'match device-name'
|
||||
|
||||
//
|
||||
// For ethernet like devices, the default is to run dhclient. Due to
|
||||
// a historical accident, the name of this script it called pccard_ether
|
||||
//
|
||||
#
|
||||
# For ethernet like devices, the default is to run dhclient. Due to
|
||||
# a historical accident, the name of this script it called pccard_ether
|
||||
#
|
||||
attach 0 {
|
||||
device-name "$ethernet-nic-regex";
|
||||
action "/etc/pccard_ether $device-name start";
|
||||
@ -44,10 +43,10 @@ detach 0 {
|
||||
action "/etc/pccard_ether $device-name stop";
|
||||
};
|
||||
|
||||
// An entry like this might be in a different file, but is included here
|
||||
// as an example of how to override things. Normally 'ed20' would match
|
||||
// the above attach/detach stuff, but the value of 100 makes it
|
||||
// ed20 is hard wired to 1.2.3.4
|
||||
# An entry like this might be in a different file, but is included here
|
||||
# as an example of how to override things. Normally 'ed20' would match
|
||||
# the above attach/detach stuff, but the value of 100 makes it
|
||||
# ed20 is hard wired to 1.2.3.4
|
||||
attach 100 {
|
||||
device-name "ed20";
|
||||
action "ifconfig $device-name inet 1.2.3.4 netmask 0xffff0000";
|
||||
@ -56,26 +55,26 @@ detach 100 {
|
||||
device-name "ed20";
|
||||
};
|
||||
|
||||
//
|
||||
// Rescan scsi device-names on attach, but not detach.
|
||||
//
|
||||
#
|
||||
# Rescan scsi device-names on attach, but not detach.
|
||||
#
|
||||
attach 0 {
|
||||
device-name "$scsi-controller-regex";
|
||||
action "camcontrol rescan all";
|
||||
};
|
||||
|
||||
// Don't even try to second guess what to do about drivers that don't
|
||||
// match here. Instead, pass it off to a smart script to deal.
|
||||
# Don't even try to second guess what to do about drivers that don't
|
||||
# match here. Instead, pass it off to a smart script to deal.
|
||||
nomatch 0 {
|
||||
action "/usr/local/bin/smart-loader $pnpinfo $location $bus";
|
||||
};
|
||||
|
||||
// The following might be an example of something that a vendor might
|
||||
// install if you were to add their device. This might reside in
|
||||
// /usr/local/etc/devd/deqna.conf. A deqna is, in this hypothetical
|
||||
// example, a pccard ethernet-like device. Students of history may
|
||||
// know other devices by this name, and will get the in-jokes in this
|
||||
// entry.
|
||||
# The following might be an example of something that a vendor might
|
||||
# install if you were to add their device. This might reside in
|
||||
# /usr/local/etc/devd/deqna.conf. A deqna is, in this hypothetical
|
||||
# example, a pccard ethernet-like device. Students of history may
|
||||
# know other devices by this name, and will get the in-jokes in this
|
||||
# entry.
|
||||
nomatch 10 {
|
||||
match "bus" "pccard[0-9]+";
|
||||
match "manufacturer" "0x1234";
|
||||
@ -90,3 +89,12 @@ detach 10 {
|
||||
device-name "deqna[0-9]+";
|
||||
action "/etc/pccard_ether $device-name stop";
|
||||
};
|
||||
|
||||
// Single line comment, alternate style
|
||||
/*
|
||||
* This is a multiline comment
|
||||
* 96
|
||||
* 97
|
||||
* 98
|
||||
* 99 */
|
||||
# error uncomment this line to test, should be line 100.
|
||||
|
||||
@ -79,7 +79,7 @@ repated as often as required.
|
||||
Further details on the syntax and meaning of each statement, and their
|
||||
substatements is explained below.
|
||||
.Pp
|
||||
Comments may appear anywhere that whitespace may appear in a BIND
|
||||
Comments may appear anywhere that whitespace may appear in a
|
||||
configuration file. To appeal to programmers of all kinds, they can
|
||||
be written in C, C++, or shell/perl constructs.
|
||||
.Pp
|
||||
@ -114,14 +114,6 @@ pair. For example:
|
||||
// is a new comment, even though it is logically
|
||||
// part of the previous comment.
|
||||
.Ed
|
||||
.Pp
|
||||
.Em WARNING :
|
||||
you cannot use the
|
||||
.Li ;
|
||||
(semicolon) character to start a comment such as you would in a zone
|
||||
file. The semicolon indicates the end of a configuration statement,
|
||||
so whatever follows it will be interpreted as the start of the next
|
||||
statement.
|
||||
.Sh FILES
|
||||
.Bl -tag -width /etc/devd.conf -compact
|
||||
.It Pa /etc/devd.conf
|
||||
|
||||
@ -28,21 +28,22 @@
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#include <sys/queue.h>
|
||||
|
||||
int yylex(void);
|
||||
void yyerror(const char *s);
|
||||
int yyparse(void);
|
||||
struct event_proc;
|
||||
struct eps;
|
||||
__BEGIN_DECLS
|
||||
void add_attach(int, struct event_proc *);
|
||||
void add_detach(int, struct event_proc *);
|
||||
void add_directory(const char *);
|
||||
void add_nomatch(int, struct event_proc *);
|
||||
struct event_proc *add_to_event_proc(struct event_proc *, struct eps *);
|
||||
struct eps *new_match(const char *, const char *);
|
||||
struct eps *new_action(const char *);
|
||||
void set_pidfile(const char *);
|
||||
void set_variable(const char *, const char *);
|
||||
void yyerror(const char *s);
|
||||
int yylex(void);
|
||||
int yyparse(void);
|
||||
__END_DECLS
|
||||
|
||||
struct file_list
|
||||
{
|
||||
char *path;
|
||||
TAILQ_ENTRY(file_list) fl_link;
|
||||
};
|
||||
|
||||
TAILQ_HEAD(file_list_head, file_list);
|
||||
|
||||
extern struct file_list_head dirlist;
|
||||
|
||||
|
||||
#define PATH_DEVCTL "/dev/devctl"
|
||||
#define DEVCTL_MAXBUF 1025
|
||||
|
||||
@ -31,12 +31,15 @@
|
||||
|
||||
#include "devd.h"
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
%}
|
||||
|
||||
%union {
|
||||
char *str;
|
||||
int i;
|
||||
struct eps *eps; /* EventProcStatement */
|
||||
struct event_proc *eventproc;
|
||||
}
|
||||
|
||||
%token SEMICOLON BEGINBLOCK ENDBLOCK COMMA
|
||||
@ -46,14 +49,14 @@
|
||||
%token OPTIONS SET DIRECTORY PID_FILE DEVICE_NAME ACTION MATCH
|
||||
%token ATTACH DETACH NOMATCH
|
||||
|
||||
%type <str> id
|
||||
%type <i> number
|
||||
%type <str> string
|
||||
%type <eventproc> match_or_action_list
|
||||
%type <eps> match_or_action match action
|
||||
|
||||
%%
|
||||
|
||||
config_file
|
||||
: config_list
|
||||
|
|
||||
;
|
||||
|
||||
config_list
|
||||
@ -83,32 +86,36 @@ option
|
||||
;
|
||||
|
||||
directory_option
|
||||
: DIRECTORY string SEMICOLON { add_directory($2); }
|
||||
: DIRECTORY STRING SEMICOLON { add_directory($2); }
|
||||
;
|
||||
|
||||
pid_file_option
|
||||
: PID_FILE string SEMICOLON
|
||||
: PID_FILE STRING SEMICOLON { set_pidfile($2); }
|
||||
;
|
||||
|
||||
set_option
|
||||
: SET id string SEMICOLON
|
||||
: SET ID STRING SEMICOLON { set_variable($2, $3); }
|
||||
;
|
||||
|
||||
attach_block
|
||||
: ATTACH number BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
|
||||
: ATTACH NUMBER BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
|
||||
{ add_attach($2, $4); }
|
||||
;
|
||||
|
||||
detach_block
|
||||
: DETACH number BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
|
||||
: DETACH NUMBER BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
|
||||
{ add_detach($2, $4); }
|
||||
;
|
||||
|
||||
nomatch_block
|
||||
: NOMATCH number BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
|
||||
: NOMATCH NUMBER BEGINBLOCK match_or_action_list ENDBLOCK SEMICOLON
|
||||
{ add_nomatch($2, $4); }
|
||||
;
|
||||
|
||||
match_or_action_list
|
||||
: match_or_action
|
||||
: match_or_action { $$ = add_to_event_proc( NULL, $1); }
|
||||
| match_or_action_list match_or_action
|
||||
{ $$ = add_to_event_proc($1, $2); }
|
||||
;
|
||||
|
||||
match_or_action
|
||||
@ -117,21 +124,13 @@ match_or_action
|
||||
;
|
||||
|
||||
match
|
||||
: MATCH string string SEMICOLON
|
||||
| DEVICE_NAME string SEMICOLON
|
||||
: MATCH STRING STRING SEMICOLON { $$ = new_match($2, $3); }
|
||||
| DEVICE_NAME STRING SEMICOLON
|
||||
{ $$ = new_match(strdup("device-name"), $2); }
|
||||
;
|
||||
|
||||
action
|
||||
: ACTION string SEMICOLON
|
||||
: ACTION STRING SEMICOLON { $$ = new_action($2); }
|
||||
;
|
||||
|
||||
number
|
||||
: NUMBER { $$ = $1; }
|
||||
|
||||
string
|
||||
: STRING { $$ = $1; }
|
||||
|
||||
id
|
||||
: ID { $$ = $1; }
|
||||
|
||||
%%
|
||||
|
||||
@ -29,6 +29,7 @@
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#include <ctype.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <syslog.h>
|
||||
@ -38,6 +39,14 @@
|
||||
int lineno = 1;
|
||||
#define YY_NO_UNPUT
|
||||
|
||||
static void
|
||||
update_lineno(const char *cp)
|
||||
{
|
||||
while (*cp)
|
||||
if (*cp++ == '\n')
|
||||
lineno++;
|
||||
}
|
||||
|
||||
%}
|
||||
|
||||
%%
|
||||
@ -45,17 +54,30 @@ int lineno = 1;
|
||||
[ \t]+ ;
|
||||
\n lineno++;
|
||||
; { return SEMICOLON; }
|
||||
#.*$ ;
|
||||
\/\/.*$ ;
|
||||
\/\*(.|\n)*\*\/ ;
|
||||
\/\*(.|\n)*\*\/ { update_lineno(yytext); }
|
||||
\{ { return BEGINBLOCK; }
|
||||
\} { return ENDBLOCK; }
|
||||
[0-9]+ { yylval.i = atoi(yytext); return NUMBER; }
|
||||
\"[^"]+\" {
|
||||
update_lineno(yytext);
|
||||
int len = strlen(yytext) - 2;
|
||||
char *walker;
|
||||
int i;
|
||||
if ((yylval.str = (char *) malloc(len + 1)) == NULL)
|
||||
goto out;
|
||||
memcpy(yylval.str, yytext + 1, len);
|
||||
yylval.str[len] = '\0';
|
||||
walker = yylval.str;
|
||||
for (i = 1; i <= len; i++) {
|
||||
if (yytext[i] == '\\' &&
|
||||
yytext[i + 1] == '\n') {
|
||||
i += 2;
|
||||
while(isspace(yytext[i]))
|
||||
i++;
|
||||
}
|
||||
*walker++ = yytext[i];
|
||||
}
|
||||
*walker++ = '\0';
|
||||
out:;
|
||||
return STRING;
|
||||
}
|
||||
@ -72,12 +94,7 @@ action { return ACTION; }
|
||||
match { return MATCH; }
|
||||
nomatch { return NOMATCH; }
|
||||
[A-Za-z][A-Za-z0-9-]* {
|
||||
int len = strlen(yytext);
|
||||
if ((yylval.str = (char *) malloc(len + 1)) == NULL)
|
||||
goto out2;
|
||||
memcpy(yylval.str, yytext + 1, len);
|
||||
yylval.str[len] = '\0';
|
||||
out2:;
|
||||
yylval.str = strdup(yytext);
|
||||
return ID;
|
||||
}
|
||||
%%
|
||||
|
||||
Loading…
Reference in New Issue
Block a user