diff options
Diffstat (limited to 'firmware/microblaze/include/usrp2_ipv4_packet.h')
| -rw-r--r-- | firmware/microblaze/include/usrp2_ipv4_packet.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/firmware/microblaze/include/usrp2_ipv4_packet.h b/firmware/microblaze/include/usrp2_ipv4_packet.h new file mode 100644 index 000000000..2822dee89 --- /dev/null +++ b/firmware/microblaze/include/usrp2_ipv4_packet.h @@ -0,0 +1,52 @@ +// +// 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 */ |