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freebsd-nq/sbin/devd/devd.h

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devd. A daemon that hooks into the kernel's /dev/devctl to produce arbitrary commands when devices come and go in the device tree (which is different than the /dev directory). This is an initial version. Much of the planned power isn't here. Instead of doing the full matching, we always run /etc/devd-generic. /etc/devd.generic will go away at some point, I think. I'm committing it in this early state so I can start getting feedback from early adapters. Approved by: re
2002-10-20 22:15:17 +00:00
/*-
* DEVD (Device action daemon)
*
* Copyright (c) 2002 M. Warner Losh <imp@freebsd.org>.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 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.
*
* $FreeBSD$
*/
Create a new C++ header file called devd.hh which has all the class definitions in it. Begin to document the classes that we use, and how they interrelate (using comments that I can use with doxygen to automatically generate docs with).
2003-04-26 20:59:04 +00:00
#ifndef DEVD_H
#define DEVD_H
/** @warning This file needs to be purely 'C' compatible.
*/
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)
2002-12-07 08:04:36 +00:00
struct event_proc;
struct eps;
__BEGIN_DECLS
void add_attach(int, struct event_proc *);
void add_detach(int, struct event_proc *);
devd. A daemon that hooks into the kernel's /dev/devctl to produce arbitrary commands when devices come and go in the device tree (which is different than the /dev directory). This is an initial version. Much of the planned power isn't here. Instead of doing the full matching, we always run /etc/devd-generic. /etc/devd.generic will go away at some point, I think. I'm committing it in this early state so I can start getting feedback from early adapters. Approved by: re
2002-10-20 22:15:17 +00:00
void add_directory(const char *);
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)
2002-12-07 08:04:36 +00:00
void add_nomatch(int, struct event_proc *);
Parse the ! lines that will soon be coming from the kernel. These are a generalized notification mechanism for subsystems wishing to report events. Revieded by: njl # The kernel side seems like it might be causing panics for me, but should # be forthcoming shortly.
2003-10-24 22:02:29 +00:00
void add_notify(int, struct event_proc *);
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)
2002-12-07 08:04:36 +00:00
struct event_proc *add_to_event_proc(struct event_proc *, struct eps *);
struct eps *new_match(const char *, const char *);
Add the ability to match the on a media type of the device in question. Submitted by: sam Approved by: re (scottl)
2005-07-10 03:37:15 +00:00
struct eps *new_media(const char *, const char *);
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)
2002-12-07 08:04:36 +00:00
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
devd. A daemon that hooks into the kernel's /dev/devctl to produce arbitrary commands when devices come and go in the device tree (which is different than the /dev directory). This is an initial version. Much of the planned power isn't here. Instead of doing the full matching, we always run /etc/devd-generic. /etc/devd.generic will go away at some point, I think. I'm committing it in this early state so I can start getting feedback from early adapters. Approved by: re
2002-10-20 22:15:17 +00:00
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)
2002-12-07 08:04:36 +00:00
#define PATH_DEVCTL "/dev/devctl"
According to devctl(4), clients must read events whole; they may not piece them together from multiple reads(). It's as if /dev/devctl is a datagram device instead of a stream device. However, devd's internal buffer was too small (1025 bytes) to read an entire ereport.fs.zfs.checksum event (variable, up to ~1300 bytes). This commit enlarges the buffer to 8k. Reviewed by: imp Approved by: ken (mentor) MFC after: 2 weeks
2013-04-26 19:49:37 +00:00
#define DEVCTL_MAXBUF 8192
Create a new C++ header file called devd.hh which has all the class definitions in it. Begin to document the classes that we use, and how they interrelate (using comments that I can use with doxygen to automatically generate docs with).
2003-04-26 20:59:04 +00:00
#endif /* DEVD_H */
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