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bird/proto/snmp/snmp.h
Vojtech Vilimek 23b467318c tmp
2022-12-17 18:16:19 +01:00

145 lines
2.6 KiB
C

/*
* BIRD -- Simple Network Management Protocol (SNMP)
*
* (c) 2022 Vojtech Vilimek <vojtech.vilimek@nic.cz>
* (c) 2022 CZ.NIC z.s.p.o
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_SNMP_H_
#define _BIRD_SNMP_H_
#include "lib/ip.h"
#include "lib/socket.h"
#include "lib/timer.h"
#include "nest/bird.h"
#include "nest/protocol.h"
#include "filter/data.h"
#include "proto/bgp/bgp.h"
#define SNMP_UNDEFINED 0
#define SNMP_BGP 1
#define SNMP_OSPF 2
#define SNMP_INVALID 255
#define SNMP_PORT 705
#define SNMP_RX_BUFFER_SIZE 2048
#define SNMP_TX_BUFFER_SIZE 2048
enum snmp_proto_state {
SNMP_ERR = 0,
SNMP_DELAY,
SNMP_INIT,
SNMP_REGISTER,
SNMP_CONN,
SNMP_STOP,
SNMP_DOWN,
SNMP_LISTEN,
};
/* hash table macros */
#define SNMP_HASH_KEY(n) n->peer_ip
#define SNMP_HASH_NEXT(n) n->next
#define SNMP_HASH_EQ(ip1, ip2) ipa_equal(ip1, ip2)
#define SNMP_HASH_FN(ip) ipa_hash(ip)
#define SNMP_HASH_LESS4(ip1, ip2) ip4_less(ip1, ip2)
#define SNMP_HASH_LESS6(ip1, ip2) ip6_less(ip1, ip2)
/* hash table only store ip4 addresses */
#define SNMP_HASH_LESS(ip1, ip2) SNMP_HASH_LESS4(ip1,ip2)
struct snmp_bond {
node n;
struct proto_config *proto;
u8 type;
};
struct snmp_config {
struct proto_config cf;
ip_addr local_ip;
ip_addr remote_ip;
u16 local_port;
u16 remote_port;
u32 local_as;
u8 timeout;
//struct iface *iface;
list bgp_entries;
u32 bonds;
};
struct snmp_bgp_peer {
struct bgp_config *config;
ip_addr peer_ip;
struct snmp_bgp_peer *next;
};
struct snmp_register {
node n;
u8 mib_class;
u32 session_id;
u32 transaction_id;
u32 packet_id;
struct oid *oid;
};
struct snmp_registered_oid {
node n;
struct oid *oid;
};
struct snmp_proto {
struct proto p;
struct object_lock *lock;
struct linpool *pool;
ip_addr local_ip;
ip_addr remote_ip;
u16 local_port;
u16 remote_port;
u32 local_as;
sock *sock;
// timeout for what ??
u8 timeout;
u32 session_id;
u32 transaction_id;
u32 packet_id;
uint register_to_ack; /* counter of pending responses to register-pdu */
list register_queue; /* list containing snmp_register records */
list bgp_registered; /* list of currently registered bgp oids
(struct snmp_registered_oid) */
//struct iface *iface;
// map
struct f_trie *bgp_trie;
HASH(struct snmp_bgp_peer) bgp_hash;
struct tbf rl_gen;
timer *ping_timer;
uint startup_delay;
timer *startup_timer;
u8 state;
uint to_send;
uint errs;
};
/*
struct snmp_pdu {
node n;
//u32 session_id;
u32 transaction_id;
u32 packet_id; // in future need support for ranges of packet_id-s
};
*/
#endif