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Add support for rc.conf(5) initialisation.
Provide user support for rc.conf(5) so a user can create a suitable /etc/rc.conf file to initialise libbsd. This patch by default adds basic networking support: cloned_interfaces ifconfig_'interface' defaultrouter hostname Refer to FreeBSD documentation for examples. Users can make a single call to have /etc/rc.conf processed, or pass a file name to a specific configuration file or a text string with line feeds can be passed to the scripting version of the interface. The rc.conf support is implemented in terms of directive handlers that are called based on a regular expression. The design allows new handlers to be added as needed. Line concatenation is still to be implemented.
This commit is contained in:
Chris Johns
61
rtemsbsd/include/machine/rtems-bsd-rc-conf-directives.h
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61
rtemsbsd/include/machine/rtems-bsd-rc-conf-directives.h
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/*
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* Copyright (c) 2016 Chris Johns <chrisj@rtems.org>. 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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* The directives available with rc.conf. You define the list you wish
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* to have available in your application and they will be available.
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*/
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#ifndef _RTEMS_BSP_RC_CONF_DIRECTIVES_h
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#define _RTEMS_BSP_RC_CONF_DIRECTIVES_h
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#include <sys/queue.h>
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#include <sys/kernel.h>
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/*
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* Use the same SYSINT for all directives.
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*/
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#define RTEMS_BSD_RC_CONF_SYSINT(_n) \
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SYSINIT(_n, SI_SUB_CREATE_INIT, SI_ORDER_ANY, _n ## _init, NULL)
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/*
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* Decls for the handlers.
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*/
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void rc_conf_net_init(void* arg); /* Installed by default. */
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/*
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* The user available directives.
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*/
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/* add here */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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99
rtemsbsd/include/machine/rtems-bsd-rc-conf.h
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99
rtemsbsd/include/machine/rtems-bsd-rc-conf.h
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@@ -0,0 +1,99 @@
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/*
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* Copyright (c) 2016 Chris Johns <chrisj@rtems.org>. 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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* Parse a FreeBSD /etc/rc.conf format file and execute the configuration
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* options we want to support.
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*/
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#ifndef _RTEMS_BSP_RC_CONF_h
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#define _RTEMS_BSP_RC_CONF_h
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/*
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* Maximum size of an rc.conf file.
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*/
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#define RTEMS_BSD_RC_CONF_MAX_SIZE (8 * 1024)
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/*
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* Directive processing data. This data is opaque externally.
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*/
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typedef struct rtems_bsd_rc_conf_ rtems_bsd_rc_conf;
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/*
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* A directive is a line in rc.conf and is 'name=value'. The handler is invoked
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* if the name matches directive's regular expression.
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*/
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typedef int (*rtems_bsd_rc_conf_directive)(rtems_bsd_rc_conf* rc_conf,
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int argc,
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const char** argv);
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/*
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* Register a directive handler.
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*/
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extern int rtems_bsd_rc_conf_directive_add(const char* dir_regex,
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rtems_bsd_rc_conf_directive handler);
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/*
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* Run an rc.conf script loaded into memory.
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*/
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extern int rtems_bsd_run_rc_conf_script(const char* name, const char* text, bool verbose);
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/*
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* Run the rc.conf file.
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*/
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extern int rtems_bsd_run_rc_conf(const char* name, bool verbose);
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/*
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* Run /etc/rc.conf.
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*/
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extern int rtems_bsd_run_etc_rc_conf(bool verbose);
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/*
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* Return the name of the file being processed.
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*/
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extern const char* rtems_bsd_rc_conf_name(rtems_bsd_rc_conf* rc_conf);
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/*
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* Return the line number being processed.
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*/
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extern int rtems_bsd_rc_conf_line(rtems_bsd_rc_conf* rc_conf);
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/*
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* Print the argv list. Helper for verbose modes.
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*/
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extern void rtems_bsd_rc_conf_print_cmd(rtems_bsd_rc_conf* rc_conf,
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const char* name,
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int argc,
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const char** argv);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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