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/*
* Copyright (C) 2006 Giridhar Pemmasani
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef _WRAPMEM_H_
/* set ALLOC_DEBUG to 1 to get information about memory used by both
* ndiswrapper and Windows driver by reading
* /proc/net/ndiswrapper/debug; this will also show memory leaks
* (memory allocated but not freed) when ndiswrapper module is
* unloaded.
* ALLOC_DEBUG=2: details about individual allocations leaking is printed
* ALLOC_DEBUG=3: tags in ExAllocatePoolWithTag leaking printed
*/
//#ifndef ALLOC_DEBUG
//#define ALLOC_DEBUG 1
//#endif
enum alloc_type { ALLOC_TYPE_KMALLOC_ATOMIC, ALLOC_TYPE_KMALLOC_NON_ATOMIC,
ALLOC_TYPE_VMALLOC_ATOMIC, ALLOC_TYPE_VMALLOC_NON_ATOMIC,
ALLOC_TYPE_SLACK, ALLOC_TYPE_PAGES, ALLOC_TYPE_MAX };
int wrapmem_init(void);
void wrapmem_exit(void);
void *slack_kmalloc(size_t size);
void slack_kfree(void *ptr);
void wrapmem_info(void);
#ifdef ALLOC_DEBUG
void *wrap_kmalloc(size_t size, gfp_t flags, const char *file, int line);
void *wrap_kzalloc(size_t size, gfp_t flags, const char *file, int line);
void wrap_kfree(void *ptr);
void *wrap_vmalloc(unsigned long size, const char *file, int line);
void *wrap__vmalloc(unsigned long size, gfp_t flags, pgprot_t prot,
const char *file, int line);
void wrap_vfree(void *ptr);
void *wrap_alloc_pages(gfp_t flags, unsigned int size,
const char *file, int line);
void wrap_free_pages(unsigned long ptr, int order);
int alloc_size(enum alloc_type type);
#ifndef _WRAPMEM_C_
#undef kmalloc
#undef kzalloc
#undef kfree
#undef vmalloc
#undef __vmalloc
#undef vfree
#define kmalloc(size, flags) \
wrap_kmalloc(size, flags, __FILE__, __LINE__)
#define kzalloc(size, flags) \
wrap_kzalloc(size, flags, __FILE__, __LINE__)
#define vmalloc(size) \
wrap_vmalloc(size, __FILE__, __LINE__)
#define __vmalloc(size, flags, prot) \
wrap__vmalloc(size, flags, prot, __FILE__, __LINE__)
#define kfree(ptr) wrap_kfree(ptr)
#define vfree(ptr) wrap_vfree(ptr)
#define wrap_get_free_pages(flags, size) \
wrap_alloc_pages(flags, size, __FILE__, __LINE__)
#undef free_pages
#define free_pages(ptr, order) wrap_free_pages(ptr, order)
#if ALLOC_DEBUG > 1
void *wrap_ExAllocatePoolWithTag(enum pool_type pool_type, SIZE_T size,
ULONG tag, const char *file, int line);
#define ExAllocatePoolWithTag(pool_type, size, tag) \
wrap_ExAllocatePoolWithTag(pool_type, size, tag, __FILE__, __LINE__)
#endif
#endif // _WRAPMEM_C_
#else
#define wrap_get_free_pages(flags, size) \
(void *)__get_free_pages(flags, get_order(size))
#endif // ALLOC_DEBUG
#endif
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