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-rw-r--r--src/include/dhcp.h85
1 files changed, 85 insertions, 0 deletions
diff --git a/src/include/dhcp.h b/src/include/dhcp.h
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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 */