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Diffstat (limited to '')
| -rw-r--r-- | src/include/dhcp.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/include/dhcp.h b/src/include/dhcp.h new file mode 100644 index 0000000..01fa781 --- /dev/null +++ b/src/include/dhcp.h @@ -0,0 +1,85 @@ +#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 */ |