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GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/dhcrelay/dhcpd.h	Lines:	0	1	0.0 %
Date:	2017-11-13	Branches:	0	0	0.0 %


/*	$OpenBSD: dhcpd.h,v 1.23 2017/04/05 14:40:56 reyk Exp $	*/

/*
 * Copyright (c) 2004 Henning Brauer <henning@openbsd.org>
 * Copyright (c) 1995, 1996, 1997, 1998, 1999
 * The Internet Software Consortium.    All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of The Internet Software Consortium nor the names
 *    of its contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
 * CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * This software has been written for the Internet Software Consortium
 * by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
 * Enterprises.  To learn more about the Internet Software Consortium,
 * see ``http://www.vix.com/isc''.  To learn more about Vixie
 * Enterprises, see ``http://www.vix.com''.
 */

#include <sys/queue.h>

#define	SERVER_PORT	67
#define	CLIENT_PORT	68

/* Maximum size of client hardware address. */
#define CHADDR_SIZE	16

struct packet_ctx {
	uint8_t				 pc_htype;
	uint8_t				 pc_hlen;
	uint8_t				 pc_smac[CHADDR_SIZE];
	uint8_t				 pc_dmac[CHADDR_SIZE];

	struct sockaddr_storage		 pc_src;
	struct sockaddr_storage		 pc_dst;

	const char 			*pc_circuit;
	int				 pc_circuitlen;
	const char			*pc_remote;
	int				 pc_remotelen;
};

struct iaddr {
	int len;
	unsigned char iabuf[CHADDR_SIZE];
};

struct hardware {
	u_int8_t htype;
	u_int8_t hlen;
	u_int8_t haddr[CHADDR_SIZE];
};

/* Possible states in which the client can be. */
enum dhcp_state {
	S_REBOOTING,
	S_INIT,
	S_SELECTING,
	S_REQUESTING,
	S_BOUND,
	S_RENEWING,
	S_REBINDING
};

/* DHCP relaying modes. */
enum dhcp_relay_mode {
	DRM_UNKNOWN,
	DRM_LAYER2,
	DRM_LAYER3,
};

struct interface_info {
	struct hardware		 hw_address;
	struct in_addr		 primary_address;
	char			 name[IFNAMSIZ];
	int			 rfdesc;
	int			 wfdesc;
	unsigned char		*rbuf;
	size_t			 rbuf_max;
	size_t			 rbuf_offset;
	size_t			 rbuf_len;
	struct ifreq		 ifr;
	int			 noifmedia;
	int			 errors;
	int			 dead;
	u_int16_t		 index;

	int			 ipv6; /* Has any IPv6 address. */
	int			 gipv6; /* Has global IPv6 address. */
	struct in6_addr		 linklocal; /* IPv6 link-local address. */

	TAILQ_ENTRY(interface_info) entry;
};
TAILQ_HEAD(iflist, interface_info);

struct timeout {
	struct timeout	*next;
	time_t		 when;
	void		 (*func)(void *);
	void		*what;
};

struct protocol {
	struct protocol	*next;
	int fd;
	void (*handler)(struct protocol *);
	void *local;
};

struct server_list {
	struct interface_info *intf;
	struct server_list *next;
	struct sockaddr_storage to;
	int fd;
};

#define	DHCPD_LOG_FACILITY	LOG_DAEMON

/* External definitions... */

/* errwarn.c */
void error(char *, ...) __attribute__ ((__format__ (__printf__, 1, 2)));
int warning(char *, ...) __attribute__ ((__format__ (__printf__, 1, 2)));
int note(char *, ...) __attribute__ ((__format__ (__printf__, 1, 2)));
int debug(char *, ...) __attribute__ ((__format__ (__printf__, 1, 2)));

/* bpf.c */
int if_register_bpf(struct interface_info *);
void if_register_send(struct interface_info *);
void if_register_receive(struct interface_info *, int);
ssize_t send_packet(struct interface_info *,
    struct dhcp_packet *, size_t, struct packet_ctx *);
ssize_t receive_packet(struct interface_info *, unsigned char *, size_t,
    struct packet_ctx *);

/* dispatch.c */
extern void (*bootp_packet_handler)(struct interface_info *,
    struct dhcp_packet *, int, struct packet_ctx *);
struct interface_info *iflist_getbyname(const char *);
void setup_iflist(void);
struct interface_info *register_interface(const char *,
    void (*)(struct protocol *), int isserver);
void dispatch(void);
void got_one(struct protocol *);
void add_protocol(char *, int, void (*)(struct protocol *), void *);
void remove_protocol(struct protocol *);

/* packet.c */
ssize_t assemble_hw_header(unsigned char *, size_t, size_t,
    struct packet_ctx *, unsigned int);
ssize_t assemble_udp_ip_header(unsigned char *, size_t, size_t,
    struct packet_ctx *pc, unsigned char *, size_t);
ssize_t decode_hw_header(unsigned char *, size_t, size_t, struct packet_ctx *,
    unsigned int);
ssize_t decode_udp_ip_header(unsigned char *, size_t, size_t,
    struct packet_ctx *);

/* dhcrelay.c */
extern int server_fd;
extern struct iflist intflist;

/* crap */
extern time_t cur_time;

static inline struct sockaddr_in *
ss2sin(struct sockaddr_storage *ss)
{
	return ((struct sockaddr_in *)ss);
}

static inline struct sockaddr_in6 *
ss2sin6(struct sockaddr_storage *ss)
{
	return ((struct sockaddr_in6 *)ss);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: dhcpd.h,v 1.23 2017/04/05 14:40:56 reyk Exp $ */
2
3			/*
4			* Copyright (c) 2004 Henning Brauer <henning@openbsd.org>
5			* Copyright (c) 1995, 1996, 1997, 1998, 1999
6			* The Internet Software Consortium. All rights reserved.
7			*
8			* Redistribution and use in source and binary forms, with or without
9			* modification, are permitted provided that the following conditions
10			* are met:
11			*
12			* 1. Redistributions of source code must retain the above copyright
13			* notice, this list of conditions and the following disclaimer.
14			* 2. Redistributions in binary form must reproduce the above copyright
15			* notice, this list of conditions and the following disclaimer in the
16			* documentation and/or other materials provided with the distribution.
17			* 3. Neither the name of The Internet Software Consortium nor the names
18			* of its contributors may be used to endorse or promote products derived
19			* from this software without specific prior written permission.
20			*
21			* THIS SOFTWARE IS PROVIDED BY THE INTERNET SOFTWARE CONSORTIUM AND
22			* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
23			* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24			* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25			* DISCLAIMED. IN NO EVENT SHALL THE INTERNET SOFTWARE CONSORTIUM OR
26			* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
27			* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
28			* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
29			* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
30			* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
31			* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
32			* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33			* SUCH DAMAGE.
34			*
35			* This software has been written for the Internet Software Consortium
36			* by Ted Lemon <mellon@fugue.com> in cooperation with Vixie
37			* Enterprises. To learn more about the Internet Software Consortium,
38			* see ``http://www.vix.com/isc''. To learn more about Vixie
39			* Enterprises, see ``http://www.vix.com''.
40			*/
41
42			#include <sys/queue.h>
43
44			#define SERVER_PORT 67
45			#define CLIENT_PORT 68
46
47			/* Maximum size of client hardware address. */
48			#define CHADDR_SIZE 16
49
50			struct packet_ctx {
51			uint8_t pc_htype;
52			uint8_t pc_hlen;
53			uint8_t pc_smac[CHADDR_SIZE];
54			uint8_t pc_dmac[CHADDR_SIZE];
55
56			struct sockaddr_storage pc_src;
57			struct sockaddr_storage pc_dst;
58
59			const char *pc_circuit;
60			int pc_circuitlen;
61			const char *pc_remote;
62			int pc_remotelen;
63			};
64
65			struct iaddr {
66			int len;
67			unsigned char iabuf[CHADDR_SIZE];
68			};
69
70			struct hardware {
71			u_int8_t htype;
72			u_int8_t hlen;
73			u_int8_t haddr[CHADDR_SIZE];
74			};
75
76			/* Possible states in which the client can be. */
77			enum dhcp_state {
78			S_REBOOTING,
79			S_INIT,
80			S_SELECTING,
81			S_REQUESTING,
82			S_BOUND,
83			S_RENEWING,
84			S_REBINDING
85			};
86
87			/* DHCP relaying modes. */
88			enum dhcp_relay_mode {
89			DRM_UNKNOWN,
90			DRM_LAYER2,
91			DRM_LAYER3,
92			};
93
94			struct interface_info {
95			struct hardware hw_address;
96			struct in_addr primary_address;
97			char name[IFNAMSIZ];
98			int rfdesc;
99			int wfdesc;
100			unsigned char *rbuf;
101			size_t rbuf_max;
102			size_t rbuf_offset;
103			size_t rbuf_len;
104			struct ifreq ifr;
105			int noifmedia;
106			int errors;
107			int dead;
108			u_int16_t index;
109
110			int ipv6; /* Has any IPv6 address. */
111			int gipv6; /* Has global IPv6 address. */
112			struct in6_addr linklocal; /* IPv6 link-local address. */
113
114			TAILQ_ENTRY(interface_info) entry;
115			};
116			TAILQ_HEAD(iflist, interface_info);
117
118			struct timeout {
119			struct timeout *next;
120			time_t when;
121			void (func)(void );
122			void *what;
123			};
124
125			struct protocol {
126			struct protocol *next;
127			int fd;
128			void (handler)(struct protocol );
129			void *local;
130			};
131
132			struct server_list {
133			struct interface_info *intf;
134			struct server_list *next;
135			struct sockaddr_storage to;
136			int fd;
137			};
138
139			#define DHCPD_LOG_FACILITY LOG_DAEMON
140
141			/* External definitions... */
142
143			/* errwarn.c */
144			void error(char *, ...) __attribute__ ((__format__ (__printf__, 1, 2)));
145			int warning(char *, ...) __attribute__ ((__format__ (__printf__, 1, 2)));
146			int note(char *, ...) __attribute__ ((__format__ (__printf__, 1, 2)));
147			int debug(char *, ...) __attribute__ ((__format__ (__printf__, 1, 2)));
148
149			/* bpf.c */
150			int if_register_bpf(struct interface_info *);
151			void if_register_send(struct interface_info *);
152			void if_register_receive(struct interface_info *, int);
153			ssize_t send_packet(struct interface_info *,
154			struct dhcp_packet , size_t, struct packet_ctx );
155			ssize_t receive_packet(struct interface_info , unsigned char , size_t,
156			struct packet_ctx *);
157
158			/* dispatch.c */
159			extern void (bootp_packet_handler)(struct interface_info ,
160			struct dhcp_packet , int, struct packet_ctx );
161			struct interface_info iflist_getbyname(const char );
162			void setup_iflist(void);
163			struct interface_info register_interface(const char ,
164			void ()(struct protocol ), int isserver);
165			void dispatch(void);
166			void got_one(struct protocol *);
167			void add_protocol(char , int, void ()(struct protocol ), void );
168			void remove_protocol(struct protocol *);
169
170			/* packet.c */
171			ssize_t assemble_hw_header(unsigned char *, size_t, size_t,
172			struct packet_ctx *, unsigned int);
173			ssize_t assemble_udp_ip_header(unsigned char *, size_t, size_t,
174			struct packet_ctx pc, unsigned char , size_t);
175			ssize_t decode_hw_header(unsigned char , size_t, size_t, struct packet_ctx ,
176			unsigned int);
177			ssize_t decode_udp_ip_header(unsigned char *, size_t, size_t,
178			struct packet_ctx *);
179
180			/* dhcrelay.c */
181			extern int server_fd;
182			extern struct iflist intflist;
183
184			/* crap */
185			extern time_t cur_time;
186
187			static inline struct sockaddr_in *
188			ss2sin(struct sockaddr_storage *ss)
189			{
190			return ((struct sockaddr_in *)ss);
191			}
192
193			static inline struct sockaddr_in6 *
194			ss2sin6(struct sockaddr_storage *ss)
195			{
196			return ((struct sockaddr_in6 *)ss);
197			}