[thirdparty/lldpd.git] / src / lldpd.h

/*
 * Copyright (c) 2008 Vincent Bernat <bernat@luffy.cx>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _LLDPD_H
#define _LLDPD_H

#if HAVE_CONFIG_H
#  include <config.h>
#endif

#define _GNU_SOURCE 1
#include <stdlib.h>
#include <string.h>
#include <sys/queue.h>
#ifdef HAVE_SYS_TYPES_H
#  include <sys/types.h>
#endif
#ifndef INCLUDE_LINUX_IF_H
#  include <net/if.h>
#else
#  include <arpa/inet.h>
#  include <linux/if.h>
#endif
#if HAVE_GETIFADDRS
#  include <ifaddrs.h>
#endif
#include <net/ethernet.h>
#include <netinet/in.h>
#include <linux/ethtool.h>
#include <sys/un.h>

#include "compat.h"
#include "lldp.h"
#if defined (ENABLE_CDP) || defined (ENABLE_FDP)
#  include "cdp.h"
#endif
#ifdef ENABLE_SONMP
#  include "sonmp.h"
#endif
#ifdef ENABLE_EDP
#  include "edp.h"
#endif

#define SYSFS_CLASS_NET "/sys/class/net/"
#define SYSFS_CLASS_DMI "/sys/class/dmi/id/"
#define LLDPD_TTL		120
#define LLDPD_TX_DELAY		30
#define LLDPD_TX_MSGDELAY	1
#define LLDPD_CTL_SOCKET	"/var/run/lldpd.socket"
#define LLDPD_PID_FILE		"/var/run/lldpd.pid"

#define UNIX_PATH_MAX	108

#define USING_AGENTX_SUBAGENT_MODULE 1

#ifdef ENABLE_DOT1
struct lldpd_vlan {
	TAILQ_ENTRY(lldpd_vlan)  v_entries;
	char			*v_name;
	u_int16_t		 v_vid;
};
#define STRUCT_LLDPD_VLAN "(Lsw)"
#endif

#ifdef ENABLE_LLDPMED
#define STRUCT_LLDPD_MED_POLICY "(bbbwbb)"
struct lldpd_med_policy {
	u_int8_t		 type;
	u_int8_t		 unknown;
	u_int8_t		 tagged;
	u_int16_t		 vid;
	u_int8_t		 priority;
	u_int8_t		 dscp;
};

#define STRUCT_LLDPD_MED_LOC "(bC)"
struct lldpd_med_loc {
	u_int8_t		 format;
	char			*data;
	int			 data_len;
};

#define STRUCT_LLDPD_MED_POWER "(bbbw)"
struct lldpd_med_power {
	u_int8_t		 devicetype; /* PD or PSE */
	u_int8_t		 source;
	u_int8_t		 priority;
	u_int16_t		 val;
};
#endif

struct lldpd_chassis {
	TAILQ_ENTRY(lldpd_chassis) c_entries;
	u_int16_t		 c_refcount; /* Reference count by ports */
	u_int16_t		 c_index;    /* Monotonic index */
	u_int8_t		 c_protocol; /* Protocol used to get this chassis */
	u_int8_t	 	 c_id_subtype;
	char			*c_id;
	int			 c_id_len;
	char			*c_name;
	char			*c_descr;

	u_int16_t		 c_cap_available;
	u_int16_t		 c_cap_enabled;

	u_int16_t		 c_ttl;

	struct in_addr		 c_mgmt;
	u_int32_t		 c_mgmt_if;

#ifdef ENABLE_LLDPMED
#define STRUCT_LLDPD_CHASSIS_MED "wbsssssss"
	u_int16_t		 c_med_cap_available;
	u_int8_t		 c_med_type;
	char			*c_med_hw;
	char			*c_med_fw;
	char			*c_med_sw;
	char			*c_med_sn;
	char			*c_med_manuf;
	char			*c_med_model;
	char			*c_med_asset;
#else
#define STRUCT_LLDPD_CHASSIS_MED ""
#endif

};
#define STRUCT_LLDPD_CHASSIS "(LwwbbCsswwwll" STRUCT_LLDPD_CHASSIS_MED ")"

struct lldpd_port {
	TAILQ_ENTRY(lldpd_port)	 p_entries;
	struct lldpd_chassis	*p_chassis;    /* Attached chassis */
	time_t			 p_lastchange; /* Time of last change of values */
	time_t			 p_lastupdate; /* Time of last update received */
	struct lldpd_frame	*p_lastframe;  /* Frame received during last update */
	u_int8_t		 p_protocol;   /* Protocol used to get this port */
	u_int8_t		 p_id_subtype;
	char			*p_id;
	int			 p_id_len;
	char			*p_descr;
	u_int16_t		 p_mfs;

#ifdef ENABLE_DOT3
#define STRUCT_LLDPD_PORT_DOT3 "lbbww"
	/* Dot3 stuff */
	u_int32_t		 p_aggregid;
	u_int8_t		 p_autoneg_support;
	u_int8_t		 p_autoneg_enabled;
	u_int16_t		 p_autoneg_advertised;
	u_int16_t		 p_mau_type;
#else
#define STRUCT_LLDPD_PORT_DOT3 ""
#endif

#ifdef ENABLE_LLDPMED
#define STRUCT_LLDPD_PORT_MED "w"      \
	STRUCT_LLDPD_MED_POLICY	       \
	STRUCT_LLDPD_MED_POLICY	       \
	STRUCT_LLDPD_MED_POLICY	       \
	STRUCT_LLDPD_MED_POLICY	       \
	STRUCT_LLDPD_MED_POLICY	       \
	STRUCT_LLDPD_MED_POLICY	       \
	STRUCT_LLDPD_MED_POLICY	       \
	STRUCT_LLDPD_MED_POLICY	       \
	STRUCT_LLDPD_MED_LOC	       \
	STRUCT_LLDPD_MED_LOC	       \
	STRUCT_LLDPD_MED_LOC	       \
	STRUCT_LLDPD_MED_POWER
	u_int16_t		 p_med_cap_enabled;
	struct lldpd_med_policy	 p_med_policy[LLDPMED_APPTYPE_LAST];
	struct lldpd_med_loc	 p_med_location[LLDPMED_LOCFORMAT_LAST];
	struct lldpd_med_power	 p_med_power;
#else
#define STRUCT_LLDPD_PORT_MED ""
#endif

#ifdef ENABLE_DOT1
#define STRUCT_LLDPD_PORT_DOT1 "wPP"
	u_int16_t		 p_pvid;
	TAILQ_HEAD(, lldpd_vlan) p_vlans;
#else
#define STRUCT_LLDPD_PORT_DOT1 ""
#endif
};

#define STRUCT_LLDPD_PORT "(LPttPbbCsw"				\
	STRUCT_LLDPD_PORT_DOT3					\
	STRUCT_LLDPD_PORT_MED					\
	STRUCT_LLDPD_PORT_DOT1 ")"

struct lldpd_frame {
	int size;
	unsigned char frame[1];
};

struct lldpd_hardware;
struct lldpd;
struct lldpd_ops {
	int(*send)(struct lldpd *,
		   struct lldpd_hardware*,
		   char *, size_t); /* Function to send a frame */
	int(*recv)(struct lldpd *,
		   struct lldpd_hardware*,
		   int, char *, size_t); /* Function to receive a frame */
	int(*cleanup)(struct lldpd *, struct lldpd_hardware *); /* Cleanup function. */
};

/* An interface is uniquely identified by h_ifindex, h_ifname and h_ops. This
 * means if an interface becomes enslaved, it will be considered as a new
 * interface. The same applies for renaming and we include the index in case of
 * renaming to an existing interface. */
struct lldpd_hardware {
	TAILQ_ENTRY(lldpd_hardware)	 h_entries;

	fd_set			 h_recvfds; /* FD for reception */
	int			 h_sendfd;  /* FD for sending, only used by h_ops */
	struct lldpd_ops	*h_ops;	    /* Hardware-dependent functions */
	void			*h_data;    /* Hardware-dependent data */

	int			 h_mtu;
	int			 h_flags; /* Packets will be sent only
					     if IFF_RUNNING. Will be
					     removed if this is left
					     to 0. */
	int			 h_ifindex; /* Interface index, used by SNMP */
	char			 h_ifname[IFNAMSIZ]; /* Should be unique */
	u_int8_t		 h_lladdr[ETHER_ADDR_LEN];

	u_int64_t		 h_tx_cnt;
	u_int64_t		 h_rx_cnt;
	u_int64_t		 h_rx_discarded_cnt;
	u_int64_t		 h_rx_ageout_cnt;
	u_int64_t		 h_rx_unrecognized_cnt;

	struct lldpd_port	 h_lport;  /* Port attached to this hardware port */
	TAILQ_HEAD(, lldpd_port) h_rports; /* Remote ports */
};

struct lldpd_interface {
	TAILQ_ENTRY(lldpd_interface) next;
	char			*name;
};
#define STRUCT_LLDPD_INTERFACE "(Ls)"

#define PROTO_SEND_SIG struct lldpd *, struct lldpd_hardware *
#define PROTO_DECODE_SIG struct lldpd *, char *, int, struct lldpd_hardware *, struct lldpd_chassis **, struct lldpd_port **
#define PROTO_GUESS_SIG char *, int

struct protocol {
#define LLDPD_MODE_LLDP 1
#define LLDPD_MODE_CDPV1 2
#define LLDPD_MODE_CDPV2 3
#define LLDPD_MODE_SONMP 4
#define LLDPD_MODE_EDP 5
#define LLDPD_MODE_FDP 6
	int		 mode;		/* > 0 mode identifier (unique per protocol) */
	int		 enabled;	/* Is this protocol enabled? */
	char		*name;		/* Name of protocol */
	char		 arg;		/* Argument to enable this protocol */
	int(*send)(PROTO_SEND_SIG);	/* How to send a frame */
	int(*decode)(PROTO_DECODE_SIG); /* How to decode a frame */
	int(*guess)(PROTO_GUESS_SIG);   /* Can be NULL, use MAC address in this case */
	u_int8_t	 mac[ETH_ALEN];  /* Destination MAC address used by this protocol */
};

#define CALLBACK_SIG struct lldpd*, struct lldpd_callback*
struct lldpd_callback {
	TAILQ_ENTRY(lldpd_callback) next;
	int	 fd;	      /* FD that will trigger this callback */
	void(*function)(CALLBACK_SIG); /* Function called */
	void	*data;		/* Optional data for this callback*/
};

struct lldpd {
	int			 g_sock;
	int			 g_delay;

	struct protocol		*g_protocols;
#ifdef ENABLE_LLDPMED
	int			 g_noinventory;
#endif
	int			 g_advertise_version;

	time_t			 g_lastsent;
	int			 g_lastrid;
#ifdef USE_SNMP
	int			 g_snmp;
#endif /* USE_SNMP */

	/* Unix socket handling */
	int			 g_ctl;

	TAILQ_HEAD(, lldpd_callback) g_callbacks;

	char			*g_mgmt_pattern;

        char                    *g_descr_override;

#define LOCAL_CHASSIS(cfg) ((struct lldpd_chassis *)(TAILQ_FIRST(&cfg->g_chassis)))
	TAILQ_HEAD(, lldpd_chassis) g_chassis;
	TAILQ_HEAD(, lldpd_hardware) g_hardware;
};

typedef void(*lldpd_ifhandlers)(struct lldpd *, struct ifaddrs *);

enum hmsg_type {
	HMSG_NONE,
	HMSG_GET_INTERFACES,
	HMSG_GET_NB_PORTS,
	HMSG_GET_PORT,
	HMSG_GET_CHASSIS,
	HMSG_GET_VLANS,
	HMSG_SET_LOCATION,
	HMSG_SET_POLICY,
	HMSG_SET_POWER,
	HMSG_SHUTDOWN
};

struct hmsg_hdr {
	enum hmsg_type	 type;
	int16_t		 len;
	pid_t		 pid;
} __attribute__ ((__packed__));

struct hmsg {
	struct hmsg_hdr	 hdr;
	void		*data;
} __attribute__ ((__packed__));

#define HMSG_HEADER_SIZE	sizeof(struct hmsg_hdr)
#define MAX_HMSGSIZE		8192

/* lldpd.c */
struct lldpd_hardware	*lldpd_get_hardware(struct lldpd *,
    char *, int, struct lldpd_ops *);
struct lldpd_hardware	*lldpd_alloc_hardware(struct lldpd *, char *);
void	 lldpd_hardware_cleanup(struct lldpd*, struct lldpd_hardware *);
#ifdef ENABLE_DOT1
void	 lldpd_vlan_cleanup(struct lldpd_port *);
#endif
void	 lldpd_remote_cleanup(struct lldpd *, struct lldpd_hardware *, int);
void	 lldpd_port_cleanup(struct lldpd*, struct lldpd_port *, int);
void	 lldpd_chassis_cleanup(struct lldpd_chassis *, int);
int	 lldpd_callback_add(struct lldpd *, int, void(*fn)(CALLBACK_SIG), void *);
void	 lldpd_callback_del(struct lldpd *, int, void(*fn)(CALLBACK_SIG));
int	 lldpd_main(int, char **);

/* lldp.c */
int	 lldp_send(PROTO_SEND_SIG);
int	 lldp_decode(PROTO_DECODE_SIG);

/* cdp.c */
#ifdef ENABLE_CDP
int	 cdpv1_send(PROTO_SEND_SIG);
int	 cdpv2_send(PROTO_SEND_SIG);
int	 cdpv1_guess(PROTO_GUESS_SIG);
int	 cdpv2_guess(PROTO_GUESS_SIG);
#endif
#if defined (ENABLE_CDP) || defined (ENABLE_FDP)
int	 cdp_decode(PROTO_DECODE_SIG);
#endif
#ifdef ENABLE_FDP
int	 fdp_send(PROTO_SEND_SIG);
#endif

#ifdef ENABLE_SONMP
/* sonmp.c */
int	 sonmp_send(PROTO_SEND_SIG);
int	 sonmp_decode(PROTO_DECODE_SIG);
#endif

#ifdef ENABLE_EDP
/* edp.c */
int	 edp_send(PROTO_SEND_SIG);
int	 edp_decode(PROTO_DECODE_SIG);
#endif

/* ctl.c */
int	 ctl_create(char *);
int	 ctl_connect(char *);
void	 ctl_cleanup(char *);
void	 ctl_accept(struct lldpd *, struct lldpd_callback *);
void	 ctl_msg_init(struct hmsg *, enum hmsg_type);
int	 ctl_msg_send(int, struct hmsg *);
int	 ctl_msg_recv(int, struct hmsg *);
int	 ctl_msg_pack_list(char *, void *, unsigned int, struct hmsg *, void **);
int	 ctl_msg_unpack_list(char *, void *, unsigned int, struct hmsg *, void **);
int	 ctl_msg_pack_structure(char *, void *, unsigned int, struct hmsg *, void **);
int	 ctl_msg_unpack_structure(char *, void *, unsigned int, struct hmsg *, void **);

/* interfaces.c */
void	 lldpd_ifh_bond(struct lldpd *, struct ifaddrs *);
void	 lldpd_ifh_eth(struct lldpd *, struct ifaddrs *);
#ifdef ENABLE_DOT1
void	 lldpd_ifh_vlan(struct lldpd *, struct ifaddrs *);
#endif
void	 lldpd_ifh_mgmt(struct lldpd *, struct ifaddrs *);

/* dmi.c */
#ifdef ENABLE_LLDPMED
char	*dmi_hw(void);
char	*dmi_fw(void);
char	*dmi_sn(void);
char	*dmi_manuf(void);
char	*dmi_model(void);
char	*dmi_asset(void);
#endif

/* log.c */
void             log_init(int, const char *);
void             log_warn(const char *, ...) __attribute__ ((format (printf, 1, 2)));
#define LLOG_WARN(x,...) log_warn("%s: " x, __FUNCTION__ , ## __VA_ARGS__)
void             log_warnx(const char *, ...) __attribute__ ((format (printf, 1, 2)));
#define LLOG_WARNX(x,...) log_warnx("%s: " x,  __FUNCTION__ , ## __VA_ARGS__)
void             log_info(const char *, ...) __attribute__ ((format (printf, 1, 2)));
#define LLOG_INFO(x,...) log_info("%s: " x, __FUNCTION__ , ## __VA_ARGS__)
void             log_debug(const char *, ...) __attribute__ ((format (printf, 1, 2)));
#define LLOG_DEBUG(x,...) log_debug("%s: " x, __FUNCTION__ , ## __VA_ARGS__)
void             fatal(const char *);
void             fatalx(const char *);

/* agent.c */
void		 agent_shutdown(void);
void		 agent_init(struct lldpd *, char *, int);

/* agent_priv.c */
void		 agent_priv_register_domain(void);

/* client.c */
struct client_handle {
	enum hmsg_type type;
	void (*handle)(struct lldpd*, struct hmsg*, struct hmsg*);
};

void	 client_handle_client(struct lldpd *, struct lldpd_callback *,
    char *, int);
void	 client_handle_none(struct lldpd *, struct hmsg *,
	    struct hmsg *);
void	 client_handle_get_interfaces(struct lldpd *, struct hmsg *,
	    struct hmsg *);
void	 client_handle_port_related(struct lldpd *, struct hmsg *,
	    struct hmsg *);
void	 client_handle_shutdown(struct lldpd *, struct hmsg *,
	    struct hmsg *);

/* priv.c */
void	 priv_init(char*);
int 	 priv_ctl_create(void);
void	 priv_ctl_cleanup(void);
char   	*priv_gethostbyname(void);
int    	 priv_open(char*);
int    	 priv_ethtool(char*, struct ethtool_cmd*);
int    	 priv_iface_init(const char *);
int	 priv_iface_multicast(const char *, u_int8_t *, int);
int	 priv_snmp_socket(struct sockaddr_un *);

/* privsep_fdpass.c */
int	 receive_fd(int);
void	 send_fd(int, int);

#endif /* _LLDPD_H */
Commit	Line	Data
43c02e7b VB	1	/*
	2	* Copyright (c) 2008 Vincent Bernat <bernat@luffy.cx>
	3	*
	4	* Permission to use, copy, modify, and distribute this software for any
	5	* purpose with or without fee is hereby granted, provided that the above
	6	* copyright notice and this permission notice appear in all copies.
	7	*
	8	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	9	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	10	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	11	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	12	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	13	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	14	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	15	*/
	16
	17	#ifndef _LLDPD_H
	18	#define _LLDPD_H
	19
	20	#if HAVE_CONFIG_H
d38eae28	21	# include <config.h>
43c02e7b VB	22	#endif
	23
	24	#define _GNU_SOURCE 1
	25	#include <stdlib.h>
	26	#include <string.h>
	27	#include <sys/queue.h>
d38eae28 VB	28	#ifdef HAVE_SYS_TYPES_H
	29	# include <sys/types.h>
	30	#endif
43c02e7b	31	#ifndef INCLUDE_LINUX_IF_H
d38eae28	32	# include <net/if.h>
43c02e7b	33	#else
d38eae28 VB	34	# include <arpa/inet.h>
d38eae28 VB	35	# include <linux/if.h>
43c02e7b	36	#endif
b7997528	37	#if HAVE_GETIFADDRS
d38eae28	38	# include <ifaddrs.h>
43c02e7b VB	39	#endif
	40	#include <net/ethernet.h>
	41	#include <netinet/in.h>
4afe659e	42	#include <linux/ethtool.h>
2acc1418	43	#include <sys/un.h>
43c02e7b VB	44
	45	#include "compat.h"
	46	#include "lldp.h"
4bad1937	47	#if defined (ENABLE_CDP) \|\| defined (ENABLE_FDP)
d38eae28	48	# include "cdp.h"
4bad1937 VB	49	#endif
4bad1937 VB	50	#ifdef ENABLE_SONMP
d38eae28	51	# include "sonmp.h"
4bad1937 VB	52	#endif
4bad1937 VB	53	#ifdef ENABLE_EDP
d38eae28	54	# include "edp.h"
4bad1937	55	#endif
43c02e7b	56
89840df0 VB	57	#define SYSFS_CLASS_NET "/sys/class/net/"
89840df0 VB	58	#define SYSFS_CLASS_DMI "/sys/class/dmi/id/"
43c02e7b VB	59	#define LLDPD_TTL 120
	60	#define LLDPD_TX_DELAY 30
	61	#define LLDPD_TX_MSGDELAY 1
	62	#define LLDPD_CTL_SOCKET "/var/run/lldpd.socket"
	63	#define LLDPD_PID_FILE "/var/run/lldpd.pid"
	64
	65	#define UNIX_PATH_MAX 108
	66
	67	#define USING_AGENTX_SUBAGENT_MODULE 1
	68
a1347cd8	69	#ifdef ENABLE_DOT1
43c02e7b VB	70	struct lldpd_vlan {
	71	TAILQ_ENTRY(lldpd_vlan) v_entries;
	72	char *v_name;
	73	u_int16_t v_vid;
	74	};
0c8f36f3	75	#define STRUCT_LLDPD_VLAN "(Lsw)"
a1347cd8	76	#endif
43c02e7b	77
e3a44efb	78	#ifdef ENABLE_LLDPMED
0c8f36f3	79	#define STRUCT_LLDPD_MED_POLICY "(bbbwbb)"
e3a44efb VB	80	struct lldpd_med_policy {
	81	u_int8_t type;
	82	u_int8_t unknown;
	83	u_int8_t tagged;
	84	u_int16_t vid;
	85	u_int8_t priority;
	86	u_int8_t dscp;
e3a44efb VB	87	};
e3a44efb VB	88
0c8f36f3	89	#define STRUCT_LLDPD_MED_LOC "(bC)"
e3a44efb VB	90	struct lldpd_med_loc {
	91	u_int8_t format;
	92	char *data;
	93	int data_len;
e3a44efb	94	};
6d08df0e VB	95
	96	#define STRUCT_LLDPD_MED_POWER "(bbbw)"
	97	struct lldpd_med_power {
	98	u_int8_t devicetype; /* PD or PSE */
	99	u_int8_t source;
	100	u_int8_t priority;
	101	u_int16_t val;
	102	};
e3a44efb VB	103	#endif
e3a44efb VB	104
43c02e7b	105	struct lldpd_chassis {
75068724 VB	106	TAILQ_ENTRY(lldpd_chassis) c_entries;
	107	u_int16_t c_refcount; /* Reference count by ports */
	108	u_int16_t c_index; /* Monotonic index */
	109	u_int8_t c_protocol; /* Protocol used to get this chassis */
43c02e7b VB	110	u_int8_t c_id_subtype;
	111	char *c_id;
	112	int c_id_len;
	113	char *c_name;
	114	char *c_descr;
	115
	116	u_int16_t c_cap_available;
	117	u_int16_t c_cap_enabled;
	118
	119	u_int16_t c_ttl;
	120
	121	struct in_addr c_mgmt;
	122	u_int32_t c_mgmt_if;
89840df0 VB	123
89840df0 VB	124	#ifdef ENABLE_LLDPMED
34602f3b	125	#define STRUCT_LLDPD_CHASSIS_MED "wbsssssss"
40ecae87	126	u_int16_t c_med_cap_available;
89840df0 VB	127	u_int8_t c_med_type;
	128	char *c_med_hw;
	129	char *c_med_fw;
	130	char *c_med_sw;
	131	char *c_med_sn;
	132	char *c_med_manuf;
	133	char *c_med_model;
	134	char *c_med_asset;
89840df0	135	#else
a1347cd8	136	#define STRUCT_LLDPD_CHASSIS_MED ""
89840df0	137	#endif
1531f7f3 VB	138
1531f7f3 VB	139	};
75068724	140	#define STRUCT_LLDPD_CHASSIS "(LwwbbCsswwwll" STRUCT_LLDPD_CHASSIS_MED ")"
43c02e7b VB	141
43c02e7b VB	142	struct lldpd_port {
75068724 VB	143	TAILQ_ENTRY(lldpd_port) p_entries;
	144	struct lldpd_chassis p_chassis; / Attached chassis */
	145	time_t p_lastchange; /* Time of last change of values */
	146	time_t p_lastupdate; /* Time of last update received */
	147	struct lldpd_frame p_lastframe; / Frame received during last update */
	148	u_int8_t p_protocol; /* Protocol used to get this port */
43c02e7b VB	149	u_int8_t p_id_subtype;
	150	char *p_id;
	151	int p_id_len;
	152	char *p_descr;
548109b2	153	u_int16_t p_mfs;
43c02e7b	154
a1347cd8	155	#ifdef ENABLE_DOT3
1531f7f3	156	#define STRUCT_LLDPD_PORT_DOT3 "lbbww"
43c02e7b VB	157	/* Dot3 stuff */
	158	u_int32_t p_aggregid;
	159	u_int8_t p_autoneg_support;
	160	u_int8_t p_autoneg_enabled;
	161	u_int16_t p_autoneg_advertised;
	162	u_int16_t p_mau_type;
a1347cd8 VB	163	#else
	164	#define STRUCT_LLDPD_PORT_DOT3 ""
	165	#endif
1531f7f3	166
740593ff VB	167	#ifdef ENABLE_LLDPMED
	168	#define STRUCT_LLDPD_PORT_MED "w" \
	169	STRUCT_LLDPD_MED_POLICY \
	170	STRUCT_LLDPD_MED_POLICY \
	171	STRUCT_LLDPD_MED_POLICY \
	172	STRUCT_LLDPD_MED_POLICY \
	173	STRUCT_LLDPD_MED_POLICY \
	174	STRUCT_LLDPD_MED_POLICY \
	175	STRUCT_LLDPD_MED_POLICY \
	176	STRUCT_LLDPD_MED_POLICY \
	177	STRUCT_LLDPD_MED_LOC \
	178	STRUCT_LLDPD_MED_LOC \
	179	STRUCT_LLDPD_MED_LOC \
6d08df0e	180	STRUCT_LLDPD_MED_POWER
740593ff VB	181	u_int16_t p_med_cap_enabled;
	182	struct lldpd_med_policy p_med_policy[LLDPMED_APPTYPE_LAST];
	183	struct lldpd_med_loc p_med_location[LLDPMED_LOCFORMAT_LAST];
6d08df0e	184	struct lldpd_med_power p_med_power;
740593ff VB	185	#else
	186	#define STRUCT_LLDPD_PORT_MED ""
	187	#endif
	188
a1347cd8	189	#ifdef ENABLE_DOT1
75b3469d VB	190	#define STRUCT_LLDPD_PORT_DOT1 "wPP"
75b3469d VB	191	u_int16_t p_pvid;
1531f7f3	192	TAILQ_HEAD(, lldpd_vlan) p_vlans;
a1347cd8 VB	193	#else
	194	#define STRUCT_LLDPD_PORT_DOT1 ""
	195	#endif
1531f7f3 VB	196	};
1531f7f3 VB	197
84853b92	198	#define STRUCT_LLDPD_PORT "(LPttPbbCsw" \
740593ff VB	199	STRUCT_LLDPD_PORT_DOT3 \
	200	STRUCT_LLDPD_PORT_MED \
	201	STRUCT_LLDPD_PORT_DOT1 ")"
43c02e7b VB	202
	203	struct lldpd_frame {
	204	int size;
b5c7ce8d	205	unsigned char frame[1];
43c02e7b VB	206	};
43c02e7b VB	207
6e75df87 VB	208	struct lldpd_hardware;
	209	struct lldpd;
	210	struct lldpd_ops {
	211	int(send)(struct lldpd ,
	212	struct lldpd_hardware*,
	213	char , size_t); / Function to send a frame */
	214	int(recv)(struct lldpd ,
	215	struct lldpd_hardware*,
	216	int, char , size_t); / Function to receive a frame */
	217	int(cleanup)(struct lldpd , struct lldpd_hardware ); / Cleanup function. */
	218	};
	219
44002d66 VB	220	/* An interface is uniquely identified by h_ifindex, h_ifname and h_ops. This
	221	* means if an interface becomes enslaved, it will be considered as a new
	222	* interface. The same applies for renaming and we include the index in case of
	223	* renaming to an existing interface. */
43c02e7b VB	224	struct lldpd_hardware {
	225	TAILQ_ENTRY(lldpd_hardware) h_entries;
	226
6e75df87 VB	227	fd_set h_recvfds; /* FD for reception */
	228	int h_sendfd; /* FD for sending, only used by h_ops */
	229	struct lldpd_ops h_ops; / Hardware-dependent functions */
	230	void h_data; / Hardware-dependent data */
43c02e7b	231
43c02e7b	232	int h_mtu;
6e75df87 VB	233	int h_flags; /* Packets will be sent only
	234	if IFF_RUNNING. Will be
	235	removed if this is left
	236	to 0. */
	237	int h_ifindex; /* Interface index, used by SNMP */
	238	char h_ifname[IFNAMSIZ]; /* Should be unique */
43c02e7b VB	239	u_int8_t h_lladdr[ETHER_ADDR_LEN];
	240
	241	u_int64_t h_tx_cnt;
	242	u_int64_t h_rx_cnt;
	243	u_int64_t h_rx_discarded_cnt;
	244	u_int64_t h_rx_ageout_cnt;
37387046	245	u_int64_t h_rx_unrecognized_cnt;
43c02e7b	246
75068724 VB	247	struct lldpd_port h_lport; /* Port attached to this hardware port */
75068724 VB	248	TAILQ_HEAD(, lldpd_port) h_rports; /* Remote ports */
43c02e7b VB	249	};
	250
	251	struct lldpd_interface {
	252	TAILQ_ENTRY(lldpd_interface) next;
	253	char *name;
	254	};
0c8f36f3	255	#define STRUCT_LLDPD_INTERFACE "(Ls)"
43c02e7b	256
77507b69	257	#define PROTO_SEND_SIG struct lldpd , struct lldpd_hardware
43c02e7b VB	258	#define PROTO_DECODE_SIG struct lldpd , char , int, struct lldpd_hardware , struct lldpd_chassis , struct lldpd_port *
	259	#define PROTO_GUESS_SIG char *, int
	260
43c02e7b	261	struct protocol {
f2dcb180 VB	262	#define LLDPD_MODE_LLDP 1
	263	#define LLDPD_MODE_CDPV1 2
	264	#define LLDPD_MODE_CDPV2 3
	265	#define LLDPD_MODE_SONMP 4
	266	#define LLDPD_MODE_EDP 5
	267	#define LLDPD_MODE_FDP 6
43c02e7b VB	268	int mode; /* > 0 mode identifier (unique per protocol) */
	269	int enabled; /* Is this protocol enabled? */
	270	char name; / Name of protocol */
	271	char arg; /* Argument to enable this protocol */
	272	int(send)(PROTO_SEND_SIG); / How to send a frame */
	273	int(decode)(PROTO_DECODE_SIG); / How to decode a frame */
	274	int(guess)(PROTO_GUESS_SIG); / Can be NULL, use MAC address in this case */
	275	u_int8_t mac[ETH_ALEN]; /* Destination MAC address used by this protocol */
43c02e7b VB	276	};
43c02e7b VB	277
77d7090e VB	278	#define CALLBACK_SIG struct lldpd, struct lldpd_callback
	279	struct lldpd_callback {
	280	TAILQ_ENTRY(lldpd_callback) next;
	281	int fd; /* FD that will trigger this callback */
	282	void(function)(CALLBACK_SIG); / Function called */
	283	void data; / Optional data for this callback*/
	284	};
	285
43c02e7b VB	286	struct lldpd {
	287	int g_sock;
	288	int g_delay;
	289
	290	struct protocol *g_protocols;
740593ff VB	291	#ifdef ENABLE_LLDPMED
	292	int g_noinventory;
	293	#endif
de1b1b3a	294	int g_advertise_version;
43c02e7b VB	295
	296	time_t g_lastsent;
	297	int g_lastrid;
	298	#ifdef USE_SNMP
	299	int g_snmp;
	300	#endif /* USE_SNMP */
	301
	302	/* Unix socket handling */
	303	int g_ctl;
77d7090e VB	304
77d7090e VB	305	TAILQ_HEAD(, lldpd_callback) g_callbacks;
43c02e7b VB	306
	307	char *g_mgmt_pattern;
	308
40ce835b ST	309	char *g_descr_override;
40ce835b ST	310
77507b69	311	#define LOCAL_CHASSIS(cfg) ((struct lldpd_chassis *)(TAILQ_FIRST(&cfg->g_chassis)))
75068724	312	TAILQ_HEAD(, lldpd_chassis) g_chassis;
43c02e7b VB	313	TAILQ_HEAD(, lldpd_hardware) g_hardware;
	314	};
	315
6e75df87 VB	316	typedef void(lldpd_ifhandlers)(struct lldpd , struct ifaddrs *);
6e75df87 VB	317
43c02e7b VB	318	enum hmsg_type {
	319	HMSG_NONE,
	320	HMSG_GET_INTERFACES,
84853b92	321	HMSG_GET_NB_PORTS,
43c02e7b	322	HMSG_GET_PORT,
84853b92	323	HMSG_GET_CHASSIS,
43c02e7b	324	HMSG_GET_VLANS,
740593ff	325	HMSG_SET_LOCATION,
86f24df3	326	HMSG_SET_POLICY,
009ddd23	327	HMSG_SET_POWER,
43c02e7b VB	328	HMSG_SHUTDOWN
	329	};
	330
	331	struct hmsg_hdr {
	332	enum hmsg_type type;
	333	int16_t len;
	334	pid_t pid;
	335	} __attribute__ ((__packed__));
	336
	337	struct hmsg {
	338	struct hmsg_hdr hdr;
	339	void *data;
	340	} __attribute__ ((__packed__));
	341
	342	#define HMSG_HEADER_SIZE sizeof(struct hmsg_hdr)
	343	#define MAX_HMSGSIZE 8192
	344
	345	/* lldpd.c */
44002d66 VB	346	struct lldpd_hardware lldpd_get_hardware(struct lldpd ,
44002d66 VB	347	char , int, struct lldpd_ops );
6e75df87 VB	348	struct lldpd_hardware lldpd_alloc_hardware(struct lldpd , char *);
6e75df87 VB	349	void lldpd_hardware_cleanup(struct lldpd, struct lldpd_hardware );
a1347cd8	350	#ifdef ENABLE_DOT1
43c02e7b	351	void lldpd_vlan_cleanup(struct lldpd_port *);
a1347cd8	352	#endif
43c02e7b	353	void lldpd_remote_cleanup(struct lldpd , struct lldpd_hardware , int);
9898ac07	354	void lldpd_port_cleanup(struct lldpd, struct lldpd_port , int);
77507b69	355	void lldpd_chassis_cleanup(struct lldpd_chassis *, int);
77d7090e VB	356	int lldpd_callback_add(struct lldpd , int, void(fn)(CALLBACK_SIG), void *);
77d7090e VB	357	void lldpd_callback_del(struct lldpd , int, void(fn)(CALLBACK_SIG));
2acc1418	358	int lldpd_main(int, char **);
43c02e7b VB	359
	360	/* lldp.c */
	361	int lldp_send(PROTO_SEND_SIG);
	362	int lldp_decode(PROTO_DECODE_SIG);
	363
	364	/* cdp.c */
4bad1937	365	#ifdef ENABLE_CDP
43c02e7b VB	366	int cdpv1_send(PROTO_SEND_SIG);
43c02e7b VB	367	int cdpv2_send(PROTO_SEND_SIG);
43c02e7b VB	368	int cdpv1_guess(PROTO_GUESS_SIG);
43c02e7b VB	369	int cdpv2_guess(PROTO_GUESS_SIG);
4bad1937 VB	370	#endif
	371	#if defined (ENABLE_CDP) \|\| defined (ENABLE_FDP)
	372	int cdp_decode(PROTO_DECODE_SIG);
	373	#endif
	374	#ifdef ENABLE_FDP
	375	int fdp_send(PROTO_SEND_SIG);
	376	#endif
43c02e7b	377
4bad1937	378	#ifdef ENABLE_SONMP
43c02e7b VB	379	/* sonmp.c */
	380	int sonmp_send(PROTO_SEND_SIG);
	381	int sonmp_decode(PROTO_DECODE_SIG);
4bad1937	382	#endif
43c02e7b	383
4bad1937	384	#ifdef ENABLE_EDP
43c02e7b VB	385	/* edp.c */
	386	int edp_send(PROTO_SEND_SIG);
	387	int edp_decode(PROTO_DECODE_SIG);
4bad1937	388	#endif
43c02e7b VB	389
43c02e7b VB	390	/* ctl.c */
b5562b23	391	int ctl_create(char *);
43c02e7b	392	int ctl_connect(char *);
b5562b23	393	void ctl_cleanup(char *);
77d7090e	394	void ctl_accept(struct lldpd , struct lldpd_callback );
43c02e7b VB	395	void ctl_msg_init(struct hmsg *, enum hmsg_type);
	396	int ctl_msg_send(int, struct hmsg *);
	397	int ctl_msg_recv(int, struct hmsg *);
	398	int ctl_msg_pack_list(char , void , unsigned int, struct hmsg , void *);
	399	int ctl_msg_unpack_list(char , void , unsigned int, struct hmsg , void *);
	400	int ctl_msg_pack_structure(char , void , unsigned int, struct hmsg , void *);
	401	int ctl_msg_unpack_structure(char , void , unsigned int, struct hmsg , void *);
	402
6e75df87	403	/* interfaces.c */
849954d7	404	void lldpd_ifh_bond(struct lldpd , struct ifaddrs );
6e75df87	405	void lldpd_ifh_eth(struct lldpd , struct ifaddrs );
5994b27d	406	#ifdef ENABLE_DOT1
6e75df87	407	void lldpd_ifh_vlan(struct lldpd , struct ifaddrs );
5994b27d	408	#endif
6e75df87 VB	409	void lldpd_ifh_mgmt(struct lldpd , struct ifaddrs );
	410
	411	/* dmi.c */
89840df0	412	#ifdef ENABLE_LLDPMED
6f1046d1 VB	413	char *dmi_hw(void);
	414	char *dmi_fw(void);
	415	char *dmi_sn(void);
	416	char *dmi_manuf(void);
	417	char *dmi_model(void);
	418	char *dmi_asset(void);
89840df0	419	#endif
43c02e7b VB	420
43c02e7b VB	421	/* log.c */
6bb9c4e0	422	void log_init(int, const char *);
e51da5ec	423	void log_warn(const char *, ...) __attribute__ ((format (printf, 1, 2)));
563e2dfc	424	#define LLOG_WARN(x,...) log_warn("%s: " x, __FUNCTION__ , ## __VA_ARGS__)
e51da5ec	425	void log_warnx(const char *, ...) __attribute__ ((format (printf, 1, 2)));
563e2dfc	426	#define LLOG_WARNX(x,...) log_warnx("%s: " x, __FUNCTION__ , ## __VA_ARGS__)
e51da5ec	427	void log_info(const char *, ...) __attribute__ ((format (printf, 1, 2)));
563e2dfc	428	#define LLOG_INFO(x,...) log_info("%s: " x, __FUNCTION__ , ## __VA_ARGS__)
e51da5ec	429	void log_debug(const char *, ...) __attribute__ ((format (printf, 1, 2)));
563e2dfc	430	#define LLOG_DEBUG(x,...) log_debug("%s: " x, __FUNCTION__ , ## __VA_ARGS__)
43c02e7b VB	431	void fatal(const char *);
	432	void fatalx(const char *);
	433
	434	/* agent.c */
6f1046d1	435	void agent_shutdown(void);
bbea66e1	436	void agent_init(struct lldpd , char , int);
43c02e7b	437
d72a05d4	438	/* agent_priv.c */
6f1046d1	439	void agent_priv_register_domain(void);
43c02e7b	440
a552a72e VB	441	/* client.c */
	442	struct client_handle {
	443	enum hmsg_type type;
	444	void (handle)(struct lldpd, struct hmsg, struct hmsg);
	445	};
	446
77d7090e VB	447	void client_handle_client(struct lldpd , struct lldpd_callback ,
77d7090e VB	448	char *, int);
a552a72e VB	449	void client_handle_none(struct lldpd , struct hmsg ,
	450	struct hmsg *);
	451	void client_handle_get_interfaces(struct lldpd , struct hmsg ,
	452	struct hmsg *);
740593ff	453	void client_handle_port_related(struct lldpd , struct hmsg ,
a552a72e VB	454	struct hmsg *);
	455	void client_handle_shutdown(struct lldpd , struct hmsg ,
	456	struct hmsg *);
	457
b5562b23	458	/* priv.c */
a2993d83	459	void priv_init(char*);
6f1046d1 VB	460	int priv_ctl_create(void);
	461	void priv_ctl_cleanup(void);
	462	char *priv_gethostbyname(void);
a7502371 VB	463	int priv_open(char*);
a7502371 VB	464	int priv_ethtool(char, struct ethtool_cmd);
849954d7	465	int priv_iface_init(const char *);
ef76f920	466	int priv_iface_multicast(const char , u_int8_t , int);
d72a05d4	467	int priv_snmp_socket(struct sockaddr_un *);
4afe659e VB	468
	469	/* privsep_fdpass.c */
	470	int receive_fd(int);
	471	void send_fd(int, int);
b5562b23	472
43c02e7b	473	#endif /* _LLDPD_H */