add misc/udp_proto.h, misc/dhcp_proto.h

misc/dhcp_proto.h

@@ -0,0 +1,107 @@
+/**
+ * @file dhcp_proto.h
+ * @author Ambroz Bizjak <ambrop7@gmail.com>
+ * 
+ * @section LICENSE
+ * 
+ * This file is part of BadVPN.
+ * 
+ * BadVPN is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ * 
+ * BadVPN 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * 
+ * @section DESCRIPTION
+ * 
+ * Definitions for the DHCP protocol.
+ */
+
+#ifndef BADVPN_MISC_DHCP_PROTO_H
+#define BADVPN_MISC_DHCP_PROTO_H
+
+#include <stdint.h>
+
+#define DHCP_OP_BOOTREQUEST 1
+#define DHCP_OP_BOOTREPLY 2
+
+#define DHCP_HARDWARE_ADDRESS_TYPE_ETHERNET 1
+
+#define DHCP_MAGIC 0x63825363
+
+#define DHCP_OPTION_PAD 0
+#define DHCP_OPTION_END 255
+
+#define DHCP_OPTION_SUBNET_MASK 1
+#define DHCP_OPTION_ROUTER 3
+#define DHCP_OPTION_DOMAIN_NAME_SERVER 6
+#define DHCP_OPTION_HOST_NAME 12
+#define DHCP_OPTION_REQUESTED_IP_ADDRESS 50
+#define DHCP_OPTION_IP_ADDRESS_LEASE_TIME 51
+#define DHCP_OPTION_DHCP_MESSAGE_TYPE 53
+#define DHCP_OPTION_DHCP_SERVER_IDENTIFIER 54
+#define DHCP_OPTION_PARAMETER_REQUEST_LIST 55
+#define DHCP_OPTION_MAXIMUM_MESSAGE_SIZE 57
+#define DHCP_OPTION_RENEWAL_TIME_VALUE 58
+#define DHCP_OPTION_REBINDING_TIME_VALUE 59
+#define DHCP_OPTION_VENDOR_CLASS_IDENTIFIER 60
+
+#define DHCP_MESSAGE_TYPE_DISCOVER 1
+#define DHCP_MESSAGE_TYPE_OFFER 2
+#define DHCP_MESSAGE_TYPE_REQUEST 3
+#define DHCP_MESSAGE_TYPE_DECLINE 4
+#define DHCP_MESSAGE_TYPE_ACK 5
+#define DHCP_MESSAGE_TYPE_NAK 6
+#define DHCP_MESSAGE_TYPE_RELEASE 7
+
+struct dhcp_header {
+    uint8_t op;
+    uint8_t htype;
+    uint8_t hlen;
+    uint8_t hops;
+    uint32_t xid;
+    uint16_t secs;
+    uint16_t flags;
+    uint32_t ciaddr;
+    uint32_t yiaddr;
+    uint32_t siaddr;
+    uint32_t giaddr;
+    uint8_t chaddr[16];
+    uint8_t sname[64];
+    uint8_t file[128];
+    uint32_t magic;
+} __attribute__((packed));
+
+struct dhcp_option_header {
+    uint8_t type;
+    uint8_t len;
+} __attribute__((packed));
+
+struct dhcp_option_dhcp_message_type {
+    uint8_t type;
+} __attribute__((packed));
+
+struct dhcp_option_maximum_message_size {
+    uint16_t size;
+} __attribute__((packed));
+
+struct dhcp_option_dhcp_server_identifier {
+    uint32_t id;
+} __attribute__((packed));
+
+struct dhcp_option_time {
+    uint32_t time;
+} __attribute__((packed));
+
+struct dhcp_option_addr {
+    uint32_t addr;
+} __attribute__((packed));
+
+#endif

misc/udp_proto.h

@@ -0,0 +1,39 @@
+/**
+ * @file udp_proto.h
+ * @author Ambroz Bizjak <ambrop7@gmail.com>
+ * 
+ * @section LICENSE
+ * 
+ * This file is part of BadVPN.
+ * 
+ * BadVPN is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ * 
+ * BadVPN 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * 
+ * @section DESCRIPTION
+ * 
+ * Definitions for the UDP protocol.
+ */
+
+#ifndef BADVPN_MISC_UDP_PROTO_H
+#define BADVPN_MISC_UDP_PROTO_H
+
+#include <stdint.h>
+
+struct udp_header {
+    uint16_t source_port;
+    uint16_t dest_port;
+    uint16_t length;
+    uint16_t checksum;
+} __attribute__((packed));
+
+#endif