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:
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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# $FreeBSD$
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PROG= devd
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PROG_CXX=devd
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SRCS= devd.c token.l parse.y y.tab.h
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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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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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DPADD= ${LIBL}
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LDADD= -ll
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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
|
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* are met:
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* 1. Redistributions of source code must retain the above copyright
|
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
|
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* notice, this list of conditions and the following disclaimer in the
|
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* 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
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
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||||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
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* 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
|
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* 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
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* 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
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|
* are met:
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|
* 1. Redistributions of source code must retain the above copyright
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||||||
|
* notice, this list of conditions and the following disclaimer.
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||||||
|
* 2. Redistributions in binary form must reproduce the above copyright
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||||||
|
* notice, this list of conditions and the following disclaimer in the
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||||||
|
* documentation and/or other materials provided with the distribution.
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||||||
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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||||||
|
* 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
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||||||
|
* 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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|
/*
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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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|
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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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|
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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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|
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|
#include <map>
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|
#include <string>
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|
#include <vector>
|
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|
|
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|
#include "devd.h"
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|
|
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|
#define CF "/etc/devd.conf"
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|
|
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|
using namespace std;
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|
|
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|
extern FILE *yyin;
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|
extern int lineno;
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|
|
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|
int dflag;
|
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|
int romeo_must_die = 0;
|
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|
|
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|
static void event_loop(void);
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|
static void usage(void);
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|
|
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|
class config;
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|
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|
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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
|
||||||
|
{
|
||||||
|
public:
|
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|
match(const char *var, const char *re);
|
||||||
|
virtual ~match();
|
||||||
|
virtual bool do_match(config &);
|
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|
virtual bool do_action(config &) { return true; }
|
||||||
|
private:
|
||||||
|
string _var;
|
||||||
|
string _re;
|
||||||
|
};
|
||||||
|
|
||||||
|
class action : public eps
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
action(const char *cmd);
|
||||||
|
virtual ~action();
|
||||||
|
virtual bool do_match(config &) { return true; }
|
||||||
|
virtual bool do_action(config &);
|
||||||
|
private:
|
||||||
|
string _cmd;
|
||||||
|
};
|
||||||
|
|
||||||
|
class event_proc
|
||||||
|
{
|
||||||
|
public:
|
||||||
|
event_proc();
|
||||||
|
virtual ~event_proc();
|
||||||
|
int get_priority() { return (_prio); }
|
||||||
|
void set_priority(int prio) { _prio = prio; }
|
||||||
|
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 *);
|
||||||
|
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();
|
||||||
|
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 @@
|
|||||||
// $FreeBSD$
|
# $FreeBSD$
|
||||||
//
|
#
|
||||||
// Refer to devd.conf(5) and devd(8) man pages for the details on how to
|
# Refer to devd.conf(5) and devd(8) man pages for the details on how to
|
||||||
// run and configure devd.
|
# 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 {
|
options {
|
||||||
// Each directory directive adds a directory the list of directories
|
# Each directory directive adds a directory the list of directories
|
||||||
// that we scan for files. Files are read-in in the order that they
|
# 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
|
# are returned from readdir(3). The rule-sets are combined to
|
||||||
// create a DFA that's used to match events to actions.
|
# create a DFA that's used to match events to actions.
|
||||||
directory "/etc/devd";
|
directory "/etc/devd";
|
||||||
directory "/usr/local/etc/devd";
|
directory "/usr/local/etc/devd";
|
||||||
pid-file "/var/run/devd.pid";
|
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
|
set ethernet-nic-regex
|
||||||
"(an|ar|aue|awi|bge|cm|cnw|cs|cue|dc|de|ed|el|em|ep|ex|\
|
"(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|\
|
fe|fxp|gem|gx|hme|ie|kue|lge|lnc|my|nge|pcn|ray|rl|\
|
||||||
@ -25,15 +26,13 @@ options {
|
|||||||
stg|sym|wds)[0-9]+";
|
stg|sym|wds)[0-9]+";
|
||||||
};
|
};
|
||||||
|
|
||||||
// Note that the attach/detach with the highest value wins, so that one can
|
# Note that the attach/detach with the highest value wins, so that one can
|
||||||
// override these general rules.
|
# 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 {
|
attach 0 {
|
||||||
device-name "$ethernet-nic-regex";
|
device-name "$ethernet-nic-regex";
|
||||||
action "/etc/pccard_ether $device-name start";
|
action "/etc/pccard_ether $device-name start";
|
||||||
@ -44,10 +43,10 @@ detach 0 {
|
|||||||
action "/etc/pccard_ether $device-name stop";
|
action "/etc/pccard_ether $device-name stop";
|
||||||
};
|
};
|
||||||
|
|
||||||
// An entry like this might be in a different file, but is included here
|
# 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
|
# as an example of how to override things. Normally 'ed20' would match
|
||||||
// the above attach/detach stuff, but the value of 100 makes it
|
# the above attach/detach stuff, but the value of 100 makes it
|
||||||
// ed20 is hard wired to 1.2.3.4
|
# ed20 is hard wired to 1.2.3.4
|
||||||
attach 100 {
|
attach 100 {
|
||||||
device-name "ed20";
|
device-name "ed20";
|
||||||
action "ifconfig $device-name inet 1.2.3.4 netmask 0xffff0000";
|
action "ifconfig $device-name inet 1.2.3.4 netmask 0xffff0000";
|
||||||
@ -56,26 +55,26 @@ detach 100 {
|
|||||||
device-name "ed20";
|
device-name "ed20";
|
||||||
};
|
};
|
||||||
|
|
||||||
//
|
#
|
||||||
// Rescan scsi device-names on attach, but not detach.
|
# Rescan scsi device-names on attach, but not detach.
|
||||||
//
|
#
|
||||||
attach 0 {
|
attach 0 {
|
||||||
device-name "$scsi-controller-regex";
|
device-name "$scsi-controller-regex";
|
||||||
action "camcontrol rescan all";
|
action "camcontrol rescan all";
|
||||||
};
|
};
|
||||||
|
|
||||||
// Don't even try to second guess what to do about drivers that don't
|
# 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.
|
# match here. Instead, pass it off to a smart script to deal.
|
||||||
nomatch 0 {
|
nomatch 0 {
|
||||||
action "/usr/local/bin/smart-loader $pnpinfo $location $bus";
|
action "/usr/local/bin/smart-loader $pnpinfo $location $bus";
|
||||||
};
|
};
|
||||||
|
|
||||||
// The following might be an example of something that a vendor might
|
# The following might be an example of something that a vendor might
|
||||||
// install if you were to add their device. This might reside in
|
# install if you were to add their device. This might reside in
|
||||||
// /usr/local/etc/devd/deqna.conf. A deqna is, in this hypothetical
|
# /usr/local/etc/devd/deqna.conf. A deqna is, in this hypothetical
|
||||||
// example, a pccard ethernet-like device. Students of history may
|
# example, a pccard ethernet-like device. Students of history may
|
||||||
// know other devices by this name, and will get the in-jokes in this
|
# know other devices by this name, and will get the in-jokes in this
|
||||||
// entry.
|
# entry.
|
||||||
nomatch 10 {
|
nomatch 10 {
|
||||||
match "bus" "pccard[0-9]+";
|
match "bus" "pccard[0-9]+";
|
||||||
match "manufacturer" "0x1234";
|
match "manufacturer" "0x1234";
|
||||||
@ -90,3 +89,12 @@ detach 10 {
|
|||||||
device-name "deqna[0-9]+";
|
device-name "deqna[0-9]+";
|
||||||
action "/etc/pccard_ether $device-name stop";
|
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
|
Further details on the syntax and meaning of each statement, and their
|
||||||
substatements is explained below.
|
substatements is explained below.
|
||||||
.Pp
|
.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
|
configuration file. To appeal to programmers of all kinds, they can
|
||||||
be written in C, C++, or shell/perl constructs.
|
be written in C, C++, or shell/perl constructs.
|
||||||
.Pp
|
.Pp
|
||||||
@ -114,14 +114,6 @@ pair. For example:
|
|||||||
// is a new comment, even though it is logically
|
// is a new comment, even though it is logically
|
||||||
// part of the previous comment.
|
// part of the previous comment.
|
||||||
.Ed
|
.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
|
.Sh FILES
|
||||||
.Bl -tag -width /etc/devd.conf -compact
|
.Bl -tag -width /etc/devd.conf -compact
|
||||||
.It Pa /etc/devd.conf
|
.It Pa /etc/devd.conf
|
||||||
|
@ -28,21 +28,22 @@
|
|||||||
* $FreeBSD$
|
* $FreeBSD$
|
||||||
*/
|
*/
|
||||||
|
|
||||||
#include <sys/queue.h>
|
struct event_proc;
|
||||||
|
struct eps;
|
||||||
int yylex(void);
|
__BEGIN_DECLS
|
||||||
void yyerror(const char *s);
|
void add_attach(int, struct event_proc *);
|
||||||
int yyparse(void);
|
void add_detach(int, struct event_proc *);
|
||||||
void add_directory(const char *);
|
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
|
#define PATH_DEVCTL "/dev/devctl"
|
||||||
{
|
#define DEVCTL_MAXBUF 1025
|
||||||
char *path;
|
|
||||||
TAILQ_ENTRY(file_list) fl_link;
|
|
||||||
};
|
|
||||||
|
|
||||||
TAILQ_HEAD(file_list_head, file_list);
|
|
||||||
|
|
||||||
extern struct file_list_head dirlist;
|
|
||||||
|
|
||||||
|
|
||||||
|
@ -31,12 +31,15 @@
|
|||||||
|
|
||||||
#include "devd.h"
|
#include "devd.h"
|
||||||
#include <stdio.h>
|
#include <stdio.h>
|
||||||
|
#include <string.h>
|
||||||
|
|
||||||
%}
|
%}
|
||||||
|
|
||||||
%union {
|
%union {
|
||||||
char *str;
|
char *str;
|
||||||
int i;
|
int i;
|
||||||
|
struct eps *eps; /* EventProcStatement */
|
||||||
|
struct event_proc *eventproc;
|
||||||
}
|
}
|
||||||
|
|
||||||
%token SEMICOLON BEGINBLOCK ENDBLOCK COMMA
|
%token SEMICOLON BEGINBLOCK ENDBLOCK COMMA
|
||||||
@ -46,14 +49,14 @@
|
|||||||
%token OPTIONS SET DIRECTORY PID_FILE DEVICE_NAME ACTION MATCH
|
%token OPTIONS SET DIRECTORY PID_FILE DEVICE_NAME ACTION MATCH
|
||||||
%token ATTACH DETACH NOMATCH
|
%token ATTACH DETACH NOMATCH
|
||||||
|
|
||||||
%type <str> id
|
%type <eventproc> match_or_action_list
|
||||||
%type <i> number
|
%type <eps> match_or_action match action
|
||||||
%type <str> string
|
|
||||||
|
|
||||||
%%
|
%%
|
||||||
|
|
||||||
config_file
|
config_file
|
||||||
: config_list
|
: config_list
|
||||||
|
|
|
||||||
;
|
;
|
||||||
|
|
||||||
config_list
|
config_list
|
||||||
@ -83,32 +86,36 @@ option
|
|||||||
;
|
;
|
||||||
|
|
||||||
directory_option
|
directory_option
|
||||||
: DIRECTORY string SEMICOLON { add_directory($2); }
|
: DIRECTORY STRING SEMICOLON { add_directory($2); }
|
||||||
;
|
;
|
||||||
|
|
||||||
pid_file_option
|
pid_file_option
|
||||||
: PID_FILE string SEMICOLON
|
: PID_FILE STRING SEMICOLON { set_pidfile($2); }
|
||||||
;
|
;
|
||||||
|
|
||||||
set_option
|
set_option
|
||||||
: SET id string SEMICOLON
|
: SET ID STRING SEMICOLON { set_variable($2, $3); }
|
||||||
;
|
;
|
||||||
|
|
||||||
attach_block
|
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_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_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_list
|
||||||
: match_or_action
|
: match_or_action { $$ = add_to_event_proc( NULL, $1); }
|
||||||
| match_or_action_list match_or_action
|
| match_or_action_list match_or_action
|
||||||
|
{ $$ = add_to_event_proc($1, $2); }
|
||||||
;
|
;
|
||||||
|
|
||||||
match_or_action
|
match_or_action
|
||||||
@ -117,21 +124,13 @@ match_or_action
|
|||||||
;
|
;
|
||||||
|
|
||||||
match
|
match
|
||||||
: MATCH string string SEMICOLON
|
: MATCH STRING STRING SEMICOLON { $$ = new_match($2, $3); }
|
||||||
| DEVICE_NAME string SEMICOLON
|
| DEVICE_NAME STRING SEMICOLON
|
||||||
|
{ $$ = new_match(strdup("device-name"), $2); }
|
||||||
;
|
;
|
||||||
|
|
||||||
action
|
action
|
||||||
: ACTION string SEMICOLON
|
: ACTION STRING SEMICOLON { $$ = new_action($2); }
|
||||||
;
|
;
|
||||||
|
|
||||||
number
|
|
||||||
: NUMBER { $$ = $1; }
|
|
||||||
|
|
||||||
string
|
|
||||||
: STRING { $$ = $1; }
|
|
||||||
|
|
||||||
id
|
|
||||||
: ID { $$ = $1; }
|
|
||||||
|
|
||||||
%%
|
%%
|
||||||
|
@ -29,6 +29,7 @@
|
|||||||
* $FreeBSD$
|
* $FreeBSD$
|
||||||
*/
|
*/
|
||||||
|
|
||||||
|
#include <ctype.h>
|
||||||
#include <stdlib.h>
|
#include <stdlib.h>
|
||||||
#include <string.h>
|
#include <string.h>
|
||||||
#include <syslog.h>
|
#include <syslog.h>
|
||||||
@ -38,6 +39,14 @@
|
|||||||
int lineno = 1;
|
int lineno = 1;
|
||||||
#define YY_NO_UNPUT
|
#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]+ ;
|
[ \t]+ ;
|
||||||
\n lineno++;
|
\n lineno++;
|
||||||
; { return SEMICOLON; }
|
; { return SEMICOLON; }
|
||||||
|
#.*$ ;
|
||||||
\/\/.*$ ;
|
\/\/.*$ ;
|
||||||
\/\*(.|\n)*\*\/ ;
|
\/\*(.|\n)*\*\/ { update_lineno(yytext); }
|
||||||
\{ { return BEGINBLOCK; }
|
\{ { return BEGINBLOCK; }
|
||||||
\} { return ENDBLOCK; }
|
\} { return ENDBLOCK; }
|
||||||
[0-9]+ { yylval.i = atoi(yytext); return NUMBER; }
|
[0-9]+ { yylval.i = atoi(yytext); return NUMBER; }
|
||||||
\"[^"]+\" {
|
\"[^"]+\" {
|
||||||
|
update_lineno(yytext);
|
||||||
int len = strlen(yytext) - 2;
|
int len = strlen(yytext) - 2;
|
||||||
|
char *walker;
|
||||||
|
int i;
|
||||||
if ((yylval.str = (char *) malloc(len + 1)) == NULL)
|
if ((yylval.str = (char *) malloc(len + 1)) == NULL)
|
||||||
goto out;
|
goto out;
|
||||||
memcpy(yylval.str, yytext + 1, len);
|
walker = yylval.str;
|
||||||
yylval.str[len] = '\0';
|
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:;
|
out:;
|
||||||
return STRING;
|
return STRING;
|
||||||
}
|
}
|
||||||
@ -72,12 +94,7 @@ action { return ACTION; }
|
|||||||
match { return MATCH; }
|
match { return MATCH; }
|
||||||
nomatch { return NOMATCH; }
|
nomatch { return NOMATCH; }
|
||||||
[A-Za-z][A-Za-z0-9-]* {
|
[A-Za-z][A-Za-z0-9-]* {
|
||||||
int len = strlen(yytext);
|
yylval.str = strdup(yytext);
|
||||||
if ((yylval.str = (char *) malloc(len + 1)) == NULL)
|
|
||||||
goto out2;
|
|
||||||
memcpy(yylval.str, yytext + 1, len);
|
|
||||||
yylval.str[len] = '\0';
|
|
||||||
out2:;
|
|
||||||
return ID;
|
return ID;
|
||||||
}
|
}
|
||||||
%%
|
%%
|
||||||
|
Loading…
Reference in New Issue
Block a user