mirror of
https://gitlab.nic.cz/labs/bird.git
synced 2024-12-23 10:11:53 +00:00
154 lines
3.2 KiB
C
154 lines
3.2 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 8192
|
|
#define SNMP_TX_BUFFER_SIZE 8192
|
|
|
|
enum snmp_proto_state {
|
|
SNMP_INIT = 1,
|
|
SNMP_LOCKED,
|
|
SNMP_OPEN,
|
|
SNMP_REGISTER,
|
|
SNMP_CONN,
|
|
SNMP_STOP,
|
|
SNMP_DOWN,
|
|
SNMP_RESET,
|
|
};
|
|
|
|
/* 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;
|
|
|
|
ip_addr bgp_local_id; /* BGP4-MIB related fields */
|
|
u32 bgp_local_as;
|
|
|
|
u8 timeout;
|
|
u8 priority;
|
|
//struct iface *iface;
|
|
u32 bonds;
|
|
const char *description;
|
|
list bgp_entries;
|
|
// TODO add support for subagent oid identification
|
|
};
|
|
|
|
#define SNMP_BGP_P_REGISTERING 0x01
|
|
#define SNMP_BGP_P_REGISTERED 0x02
|
|
|
|
struct snmp_bgp_peer {
|
|
const struct bgp_config *config;
|
|
ip_addr peer_ip;
|
|
u8 flags;
|
|
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;
|
|
pool *pool; /* a shortcut to the procotol mem. pool */
|
|
linpool *lp; /* linpool for bgp_trie nodes */
|
|
|
|
ip_addr local_ip;
|
|
ip_addr remote_ip;
|
|
u16 local_port;
|
|
u16 remote_port;
|
|
|
|
ip_addr bgp_local_id; /* BGP4-MIB related fields */
|
|
u32 bgp_local_as;
|
|
|
|
sock *sock;
|
|
void *last_header; /* points to partial PDU header */
|
|
u8 timeout; /* timeout is part of MIB registration. It
|
|
specifies how long should the master
|
|
agent wait for request responses. */
|
|
|
|
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) */
|
|
|
|
// 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;
|
|
};
|
|
|
|
//void snmp_tx(sock *sk);
|
|
void snmp_startup(struct snmp_proto *p);
|
|
void snmp_connected(sock *sk);
|
|
void snmp_startup_timeout(timer *tm);
|
|
void snmp_reconnect(timer *tm);
|
|
void snmp_sock_disconnect(struct snmp_proto *p, int reconnect);
|
|
|
|
|
|
#endif
|