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#ifndef FR_DHCP_H
#define FR_DHCP_H
/*
* dhcp.h Structures and prototypes for DHCP.
* Why DHCP in a RADIUS server?
* Why not?
*
* Version: $Id$
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*
* Copyright 2008 The FreeRADIUS server project
* Copyright 2008 Alan DeKok <aland@deployingradius.com>
*/
RCSIDH(dhcp_h, "$Id$")
#ifdef __cplusplus
extern "C" {
#endif
/*
* Not for production use.
*/
RADIUS_PACKET *fr_dhcp_recv(int sockfd);
int fr_dhcp_send(RADIUS_PACKET *packet);
int fr_dhcp_add_arp_entry(int fd, char const *interface, VALUE_PAIR *hwvp, VALUE_PAIR *clvp);
int8_t fr_dhcp_attr_cmp(void const *a, void const *b);
ssize_t fr_dhcp_encode_option(TALLOC_CTX *ctx, uint8_t *out, size_t outlen, vp_cursor_t *cursor);
int fr_dhcp_encode(RADIUS_PACKET *packet);
ssize_t fr_dhcp_decode_options(TALLOC_CTX *ctx, VALUE_PAIR **out, uint8_t const *data, size_t len);
int fr_dhcp_decode(RADIUS_PACKET *packet);
#ifdef HAVE_LINUX_IF_PACKET_H
#include <linux/if_packet.h>
int fr_socket_packet(int iface_index, struct sockaddr_ll *p_ll);
int fr_dhcp_send_raw_packet(int sockfd, struct sockaddr_ll *p_ll, RADIUS_PACKET *packet);
RADIUS_PACKET *fr_dhcp_recv_raw_packet(int sockfd, struct sockaddr_ll *p_ll, RADIUS_PACKET *request);
#endif
/*
* This is a horrible hack.
*/
#define PW_DHCP_OFFSET (1024)
#define PW_DHCP_DISCOVER (1024 + 1)
#define PW_DHCP_OFFER (1024 + 2)
#define PW_DHCP_REQUEST (1024 + 3)
#define PW_DHCP_DECLINE (1024 + 4)
#define PW_DHCP_ACK (1024 + 5)
#define PW_DHCP_NAK (1024 + 6)
#define PW_DHCP_RELEASE (1024 + 7)
#define PW_DHCP_INFORM (1024 + 8)
#define PW_DHCP_LEASE_QUERY (1024 + 10)
#define DHCP_MAGIC_VENDOR (54)
#define PW_DHCP_OPTION_82 (82)
#define DHCP_PACK_OPTION1(x,y) ((x) | ((y) << 8))
#define DHCP_BASE_ATTR(x) (x & 0xff)
#define DHCP_UNPACK_OPTION1(x) (((x) & 0xff00) >> 8)
#define PW_DHCP_MESSAGE_TYPE (53)
#define PW_DHCP_YOUR_IP_ADDRESS (264)
#define PW_DHCP_SUBNET_MASK (1)
#define PW_DHCP_IP_ADDRESS_LEASE_TIME (51)
#ifdef __cplusplus
}
#endif
#endif /* FR_DHCP_H */
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