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freebsd-dev/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)
*
various: general adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
2017-11-27 15:37:16 +00:00
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
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
* 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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