dhcp: Move to plugin

[vpp.git] / src / plugins / dhcp / dhcp4_packet.h

diff --git a/src/plugins/dhcp/dhcp4_packet.h b/src/plugins/dhcp/dhcp4_packet.h
new file mode 100644 (file)
index 0000000..3076dd9
--- /dev/null
+++ b/src/plugins/dhcp/dhcp4_packet.h
@@ -0,0 +1,80 @@
+#ifndef included_vnet_dhcp4_packet_h
+#define included_vnet_dhcp4_packet_h
+
+/*
+ * DHCP packet format
+ *
+ * Copyright (c) 2013 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <vnet/ip/ip4_packet.h>
+
+typedef struct
+{
+  u8 option;
+  u8 length;
+  union
+  {
+    u8 data[0];
+    u32 data_as_u32[0];
+  };
+} __attribute__ ((packed)) dhcp_option_t;
+
+typedef struct
+{
+  u8 opcode;                   /* 1 = request, 2 = reply */
+  u8 hardware_type;            /* 1 = ethernet */
+  u8 hardware_address_length;
+  u8 hops;
+  u32 transaction_identifier;
+  u16 seconds;
+  u16 flags;
+#define DHCP_FLAG_BROADCAST (1<<15)
+  ip4_address_t client_ip_address;
+  ip4_address_t your_ip_address;       /* use this one */
+  ip4_address_t server_ip_address;
+  ip4_address_t gateway_ip_address;    /* use option 3, not this one */
+  u8 client_hardware_address[16];
+  u8 server_name[64];
+  u8 boot_filename[128];
+  ip4_address_t magic_cookie;
+  dhcp_option_t options[0];
+} dhcp_header_t;
+
+typedef enum
+{
+  DHCP_PACKET_DISCOVER = 1,
+  DHCP_PACKET_OFFER,
+  DHCP_PACKET_REQUEST,
+  DHCP_PACKET_ACK = 5,
+  DHCP_PACKET_NAK,
+} dhcp_packet_type_t;
+
+typedef enum dhcp_packet_option_t_
+{
+  DHCP_PACKET_OPTION_MSG_TYPE = 53,
+  DHCP_PACKET_OPTION_END = 0xff,
+} dhcp_packet_option_t;
+
+/* charming antique: 99.130.83.99 is the dhcp magic cookie */
+#define DHCP_MAGIC (clib_host_to_net_u32(0x63825363))
+
+#endif /* included_vnet_dhcp4_packet_h */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */