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/* -*- c -*- */
/*
* Copyright 2009 Ettus Research LLC
*
* 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 3 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef INCLUDED_BANAL_H
#define INCLUDED_BANAL_H
#include <stdint.h>
#include <lwip/ip_addr.h>
#define dimof(x) (sizeof(x)/sizeof(x[0]))
/*
* 1's complement sum for IP and UDP headers
*
* init chksum to zero to start.
*/
static inline unsigned int
CHKSUM(unsigned int x, unsigned int *chksum)
{
*chksum += x;
*chksum = (*chksum & 0xffff) + (*chksum>>16);
*chksum = (*chksum & 0xffff) + (*chksum>>16);
return x;
}
unsigned int
chksum_buffer(unsigned short *buf, int nshorts, unsigned int initial_chksum);
//-------------- unsigned get_int 8, 16, 32, 64 --------------//
static inline uint8_t
get_uint8(const unsigned char *s)
{
return s[0];
}
static inline uint16_t
get_uint16(const unsigned char *s)
{
return (s[0] << 8) | s[1];
}
uint32_t
get_uint32(const unsigned char *s);
uint64_t
get_uint64(const unsigned char *s);
//--------------- signed get_int 8, 16, 32, 64 --------------//
static inline int8_t
get_int8(const unsigned char *s)
{
return get_uint8(s);
}
static inline int16_t
get_int16(const unsigned char *s)
{
return get_uint16(s);
}
static inline int32_t
get_int32(const unsigned char *s)
{
return get_uint32(s);
}
static inline int64_t
get_int64(const unsigned char *s)
{
return get_uint64(s);
}
#endif /* INCLUDED_BANAL_H */
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