diff options
Diffstat (limited to 'freebsd/sys/sys/module_khelp.h')
| -rw-r--r-- | freebsd/sys/sys/module_khelp.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/freebsd/sys/sys/module_khelp.h b/freebsd/sys/sys/module_khelp.h new file mode 100644 index 00000000..9a7f507d --- /dev/null +++ b/freebsd/sys/sys/module_khelp.h @@ -0,0 +1,110 @@ +/*- + * Copyright (c) 2010 Lawrence Stewart <lstewart@freebsd.org> + * Copyright (c) 2010 The FreeBSD Foundation + * All rights reserved. + * + * This software was developed by Lawrence Stewart while studying at the Centre + * for Advanced Internet Architectures, Swinburne University of Technology, made + * possible in part by grants from the FreeBSD Foundation and Cisco University + * Research Program Fund at Community Foundation Silicon Valley. + * + * Portions of this software were developed at the Centre for Advanced + * Internet Architectures, Swinburne University of Technology, Melbourne, + * Australia by Lawrence Stewart under sponsorship from the FreeBSD Foundation. + * + * 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. + * + * $FreeBSD$ + */ + +#ifndef _SYS_MODULE_KHELP_H_ +#define _SYS_MODULE_KHELP_H_ + +/* XXXLAS: Needed for uma related typedefs. */ +#include <vm/uma.h> + +/* Helper flags. */ +#define HELPER_NEEDS_OSD 0x0001 + +struct helper { + int (*mod_init) (void); + int (*mod_destroy) (void); +#define HELPER_NAME_MAXLEN 16 + char h_name[HELPER_NAME_MAXLEN]; + uma_zone_t h_zone; + struct hookinfo *h_hooks; + uint32_t h_nhooks; + uint32_t h_classes; + int32_t h_id; + volatile uint32_t h_refcount; + uint16_t h_flags; + TAILQ_ENTRY(helper) h_next; +}; + +struct khelp_modevent_data { + char name[HELPER_NAME_MAXLEN]; + struct helper *helper; + struct hookinfo *hooks; + int nhooks; + int uma_zsize; + uma_ctor umactor; + uma_dtor umadtor; +}; + +#define KHELP_DECLARE_MOD(hname, hdata, hhooks, version) \ + static struct khelp_modevent_data kmd_##hname = { \ + .name = #hname, \ + .helper = hdata \ + .hooks = hhooks, \ + .nhooks = sizeof(hhooks) / sizeof(hhooks[0]), \ + }; \ + static moduledata_t h_##hname = { \ + .name = #hname, \ + .evhand = khelp_modevent, \ + .priv = &kmd_##hname \ + }; \ + DECLARE_MODULE(hname, h_##hname, SI_SUB_PROTO_IFATTACHDOMAIN, \ + SI_ORDER_ANY); \ + MODULE_VERSION(hname, version) + +#define KHELP_DECLARE_MOD_UMA(hname, hdata, hhooks, version, size, ctor, dtor) \ + static struct khelp_modevent_data kmd_##hname = { \ + .name = #hname, \ + .helper = hdata, \ + .hooks = hhooks, \ + .nhooks = sizeof(hhooks) / sizeof(hhooks[0]), \ + .uma_zsize = size, \ + .umactor = ctor, \ + .umadtor = dtor \ + }; \ + static moduledata_t h_##hname = { \ + .name = #hname, \ + .evhand = khelp_modevent, \ + .priv = &kmd_##hname \ + }; \ + DECLARE_MODULE(hname, h_##hname, SI_SUB_PROTO_IFATTACHDOMAIN, \ + SI_ORDER_ANY); \ + MODULE_VERSION(hname, version) + +int khelp_modevent(module_t mod, int type, void *data); + +#endif /* _SYS_MODULE_KHELP_H_ */ |