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//
// Copyright 2010 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_USRP2_IPV4_PACKET_H
#define INCLUDED_USRP2_IPV4_PACKET_H
#include "usrp2_cdefs.h"
#include "network.h"
__U2_BEGIN_DECLS
/*!
* \brief The classic ipv4 header
*/
typedef struct {
unsigned int ip_v:4; /* both fields are 4 bits */
unsigned int ip_hl:4;
uint8_t ip_tos;
uint16_t ip_len;
uint16_t ip_id;
uint16_t ip_off;
uint8_t ip_ttl;
uint8_t ip_p;
uint16_t ip_sum;
struct in_addr ip_src;
struct in_addr ip_dst;
} __attribute__((packed)) u2_ipv4_hdr_t;
#define IP_RF 0x8000 /* reserved fragment flag */
#define IP_DF 0x4000 /* dont fragment flag */
#define IP_MF 0x2000 /* more fragments flag */
#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
#define IP_PROTO_UDP 17
__U2_END_DECLS
#endif /* INCLUDED_USRP2_IPV4_PACKET_H */
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