dhcp.h File Reference

#include "common.h"
#include "buffer.h"
#include "proto.h"

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Data Structures
struct	dhcp
struct	dhcp_full

Macros
#define	DHCP_PAD   0
#define	DHCP_ROUTER   3
#define	DHCP_MSG_TYPE   53 /* message type (u8) */
#define	DHCP_END   255
#define	DHCPDISCOVER   1
#define	DHCPOFFER   2
#define	DHCPREQUEST   3
#define	DHCPDECLINE   4
#define	DHCPACK   5
#define	DHCPNAK   6
#define	DHCPRELEASE   7
#define	DHCPINFORM   8
#define	BOOTPS_PORT   67
#define	BOOTPC_PORT   68
#define	BOOTREQUEST   1
#define	BOOTREPLY   2
#define	DHCP_OPTIONS_BUFFER_SIZE   256

Functions
in_addr_t	dhcp_extract_router_msg (struct buffer *ipbuf)

Macro Definition Documentation

BOOTPC_PORT

#define BOOTPC_PORT   68

Definition at line 51 of file dhcp.h.

BOOTPS_PORT

#define BOOTPS_PORT   67

Definition at line 50 of file dhcp.h.

BOOTREPLY

#define BOOTREPLY   2

Definition at line 55 of file dhcp.h.

BOOTREQUEST

#define BOOTREQUEST   1

Definition at line 54 of file dhcp.h.

DHCP_END

#define DHCP_END   255

Definition at line 37 of file dhcp.h.

DHCP_MSG_TYPE

#define DHCP_MSG_TYPE   53 /* message type (u8) */

Definition at line 36 of file dhcp.h.

DHCP_OPTIONS_BUFFER_SIZE

#define DHCP_OPTIONS_BUFFER_SIZE   256

Definition at line 78 of file dhcp.h.

DHCP_PAD

#define DHCP_PAD   0

Definition at line 34 of file dhcp.h.

DHCP_ROUTER

#define DHCP_ROUTER   3

Definition at line 35 of file dhcp.h.

DHCPACK

#define DHCPACK   5

Definition at line 44 of file dhcp.h.

DHCPDECLINE

#define DHCPDECLINE   4

Definition at line 43 of file dhcp.h.

DHCPDISCOVER

#define DHCPDISCOVER   1

Definition at line 40 of file dhcp.h.

DHCPINFORM

#define DHCPINFORM   8

Definition at line 47 of file dhcp.h.

DHCPNAK

#define DHCPNAK   6

Definition at line 45 of file dhcp.h.

DHCPOFFER

#define DHCPOFFER   2

Definition at line 41 of file dhcp.h.

DHCPRELEASE

#define DHCPRELEASE   7

Definition at line 46 of file dhcp.h.

DHCPREQUEST

#define DHCPREQUEST   3

Definition at line 42 of file dhcp.h.

Function Documentation

dhcp_extract_router_msg()

in_addr_t dhcp_extract_router_msg

(

struct buffer *

ipbuf

)

Definition at line 149 of file dhcp.c.

References BLEN, BOOTPC_PORT, BOOTPS_PORT, BOOTREPLY, BPTR, openvpn_udphdr::check, D_ROUTE, openvpn_iphdr::daddr, openvpn_udphdr::dest, dhcp_full::dhcp, DHCPACK, DHCPOFFER, do_extract(), gc_free(), gc_new(), get_dhcp_message_type(), dhcp_full::ip, ip_checksum(), msg, dhcp::op, OPENVPN_IPPROTO_UDP, print_in_addr_t(), openvpn_iphdr::protocol, openvpn_iphdr::saddr, openvpn_udphdr::source, and dhcp_full::udp.

Referenced by process_ip_header().