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/* Netfilter Driver for IPSec VPN Client
*
* Copyright(c) 2012 Samsung Electronics
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
/*
* kernel_alloc.h
*
* Kernel memory allocation API.
*
*/
#ifndef KERNEL_ALLOC_H
#define KERNEL_ALLOC_H
/* Allocate 'size' amount of memory, with the 'flag'
parameters. Returns a NULL value if the allocation request cannot
be satisfied for some reason.
Notice: 'flag' is nothing more than a hint to the allocator. The
allocator is free to ignore 'flag'. The allocatee is free to
specify flag as ssh_rand() number, and the returned memory must still
have the same semantics as any other memory block allocated. */
void *ssh_kernel_alloc(size_t size, SshUInt32 flag);
/* Flag is or-ed together of the following flags. */
#define SSH_KERNEL_ALLOC_NOWAIT 0x0000 /* allocation/use atomic. */
#define SSH_KERNEL_ALLOC_WAIT 0x0001 /* allow sleeping alloc/use. */
#define SSH_KERNEL_ALLOC_DMA 0x0002 /* allow DMA use. */
/* Other bits are usable for other purposes? */
/* Frees a previously allocated block of memory. */
void ssh_kernel_free(void *ptr);
#ifdef DEBUG_LIGHT
#define KERNEL_ALLOC_USE_FUNCTIONS
#endif /* DEBUG_LIGHT */
#endif /* KERNEL_ALLOC_H */
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