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mainly visual tweaks

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This commit is contained in:
Vojtech Vilimek 2023-07-26 14:34:01 +02:00
parent 3c26f49107
commit 4c7828779e
6 changed files with 108 additions and 90 deletions
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78
proto/snmp/bgp_mib.c
View File

@ -16,38 +16,38 @@
#include "bgp_mib.h"
static const char * const debug_bgp_states[] UNUSED = {
[BGP_INTERNAL_INVALID] = "BGP_INTERNAL_INVALID",
[BGP_INTERNAL_BGP] = "BGP_INTERNAL_BGP",
[BGP_INTERNAL_VERSION] = "BGP_INTERNAL_VERSION",
[BGP_INTERNAL_LOCAL_AS] = "BGP_INTERNAL_LOCAL_AS",
[BGP_INTERNAL_PEER_TABLE] = "BGP_INTERNAL_PEER_TABLE",
[BGP_INTERNAL_PEER_ENTRY] = "BGP_INTERNAL_PEER_ENTRY",
[BGP_INTERNAL_IDENTIFIER] = "BGP_INTERNAL_IDENTIFIER",
[BGP_INTERNAL_STATE] = "BGP_INTERNAL_STATE",
[BGP_INTERNAL_ADMIN_STATUS] = "BGP_INTERNAL_ADMIN_STATUS",
[BGP_INTERNAL_NEGOTIATED_VERSION] = "BGP_INTERNAL_NEGOTIATED_VERSION",
[BGP_INTERNAL_LOCAL_ADDR] = "BGP_INTERNAL_LOCAL_ADDR",
[BGP_INTERNAL_LOCAL_PORT] = "BGP_INTERNAL_LOCAL_PORT",
[BGP_INTERNAL_REMOTE_ADDR] = "BGP_INTERNAL_REMOTE_ADDR",
[BGP_INTERNAL_REMOTE_PORT] = "BGP_INTERNAL_REMOTE_PORT",
[BGP_INTERNAL_REMOTE_AS] = "BGP_INTERNAL_REMOTE_AS",
[BGP_INTERNAL_RX_UPDATES] = "BGP_INTERNAL_RX_UPDATES",
[BGP_INTERNAL_TX_UPDATES] = "BGP_INTERNAL_TX_UPDATES",
[BGP_INTERNAL_RX_MESSAGES] = "BGP_INTERNAL_RX_MESSAGES",
[BGP_INTERNAL_TX_MESSAGES] = "BGP_INTERNAL_TX_MESSAGES",
[BGP_INTERNAL_LAST_ERROR] = "BGP_INTERNAL_LAST_ERROR",
[BGP_INTERNAL_FSM_TRANSITIONS] = "BGP_INTERNAL_FSM_TRANSITIONS",
[BGP_INTERNAL_FSM_ESTABLISHED_TIME] = "BGP_INTERNAL_FSM_ESTABLISHED_TIME",
[BGP_INTERNAL_RETRY_INTERVAL] = "BGP_INTERNAL_RETRY_INTERVAL",
[BGP_INTERNAL_HOLD_TIME] = "BGP_INTERNAL_HOLD_TIME",
[BGP_INTERNAL_KEEPALIVE] = "BGP_INTERNAL_KEEPALIVE",
[BGP_INTERNAL_HOLD_TIME_CONFIGURED] = "BGP_INTERNAL_HOLD_TIME_CONFIGURED",
[BGP_INTERNAL_KEEPALIVE_CONFIGURED] = "BGP_INTERNAL_KEEPALIVE_CONFIGURED",
[BGP_INTERNAL_ORIGINATION_INTERVAL] = "BGP_INTERNAL_ORIGINATION_INTERVAL",
[BGP_INTERNAL_INVALID] = "BGP_INTERNAL_INVALID",
[BGP_INTERNAL_BGP] = "BGP_INTERNAL_BGP",
[BGP_INTERNAL_VERSION] = "BGP_INTERNAL_VERSION",
[BGP_INTERNAL_LOCAL_AS] = "BGP_INTERNAL_LOCAL_AS",
[BGP_INTERNAL_PEER_TABLE] = "BGP_INTERNAL_PEER_TABLE",
[BGP_INTERNAL_PEER_ENTRY] = "BGP_INTERNAL_PEER_ENTRY",
[BGP_INTERNAL_IDENTIFIER] = "BGP_INTERNAL_IDENTIFIER",
[BGP_INTERNAL_STATE] = "BGP_INTERNAL_STATE",
[BGP_INTERNAL_ADMIN_STATUS] = "BGP_INTERNAL_ADMIN_STATUS",
[BGP_INTERNAL_NEGOTIATED_VERSION] = "BGP_INTERNAL_NEGOTIATED_VERSION",
[BGP_INTERNAL_LOCAL_ADDR] = "BGP_INTERNAL_LOCAL_ADDR",
[BGP_INTERNAL_LOCAL_PORT] = "BGP_INTERNAL_LOCAL_PORT",
[BGP_INTERNAL_REMOTE_ADDR] = "BGP_INTERNAL_REMOTE_ADDR",
[BGP_INTERNAL_REMOTE_PORT] = "BGP_INTERNAL_REMOTE_PORT",
[BGP_INTERNAL_REMOTE_AS] = "BGP_INTERNAL_REMOTE_AS",
[BGP_INTERNAL_RX_UPDATES] = "BGP_INTERNAL_RX_UPDATES",
[BGP_INTERNAL_TX_UPDATES] = "BGP_INTERNAL_TX_UPDATES",
[BGP_INTERNAL_RX_MESSAGES] = "BGP_INTERNAL_RX_MESSAGES",
[BGP_INTERNAL_TX_MESSAGES] = "BGP_INTERNAL_TX_MESSAGES",
[BGP_INTERNAL_LAST_ERROR] = "BGP_INTERNAL_LAST_ERROR",
[BGP_INTERNAL_FSM_TRANSITIONS] = "BGP_INTERNAL_FSM_TRANSITIONS",
[BGP_INTERNAL_FSM_ESTABLISHED_TIME] = "BGP_INTERNAL_FSM_ESTABLISHED_TIME",
[BGP_INTERNAL_RETRY_INTERVAL] = "BGP_INTERNAL_RETRY_INTERVAL",
[BGP_INTERNAL_HOLD_TIME] = "BGP_INTERNAL_HOLD_TIME",
[BGP_INTERNAL_KEEPALIVE] = "BGP_INTERNAL_KEEPALIVE",
[BGP_INTERNAL_HOLD_TIME_CONFIGURED] = "BGP_INTERNAL_HOLD_TIME_CONFIGURED",
[BGP_INTERNAL_KEEPALIVE_CONFIGURED] = "BGP_INTERNAL_KEEPALIVE_CONFIGURED",
[BGP_INTERNAL_ORIGINATION_INTERVAL] = "BGP_INTERNAL_ORIGINATION_INTERVAL",
[BGP_INTERNAL_MIN_ROUTE_ADVERTISEMENT] = "BGP_INTERNAL_MIN_ROUTE_ADVERTISEMENT",
[BGP_INTERNAL_IN_UPDATE_ELAPSED_TIME] = "BGP_INTERNAL_IN_UPDATE_ELAPSED_TIME",
[BGP_INTERNAL_END] = "BGP_INTERNAL_END",
[BGP_INTERNAL_NO_VALUE] = "BGP_INTERNAL_NO_VALUE",
[BGP_INTERNAL_IN_UPDATE_ELAPSED_TIME] = "BGP_INTERNAL_IN_UPDATE_ELAPSED_TIME",
[BGP_INTERNAL_END] = "BGP_INTERNAL_END",
[BGP_INTERNAL_NO_VALUE] = "BGP_INTERNAL_NO_VALUE",
};
void
@ -222,7 +222,7 @@ print_bgp_record(struct bgp_config *config)
struct bgp_conn *conn = bgp_proto->conn;
snmp_log(" name: %s", cf->name);
snmp_log("");
snmp_log(".");
snmp_log(" rem. identifier: %u", bgp_proto->remote_id);
snmp_log(" local ip: %I", config->local_ip);
snmp_log(" remote ip: %I", config->remote_ip);
@ -280,11 +280,11 @@ print_bgp_record_all(struct snmp_proto *p)
*
* Returns linearized state for Get-PDU, GetNext-PDU and GetBulk-PDU packets.
*/
u8
snmp_bgp_state(struct oid *oid)
static u8
snmp_bgp_state(const struct oid *oid)
{
/* already checked:
xxxxxxxx p
* xxxxxxxx p
* (*oid): .1.3.6.1.2.1.15
* -> BGP4-MIB::bgp (root)
*/
@ -352,7 +352,6 @@ snmp_bgp_state(struct oid *oid)
state = BGP_INTERNAL_NO_VALUE;
candidate = BGP_INTERNAL_NO_VALUE;
}
else /* oid->ids[2] > SNMP_BGP_PEER_TABLE */
state = BGP_INTERNAL_END;
}
@ -446,7 +445,7 @@ snmp_bgp_is_supported(struct oid *o)
o->ids[1] == BGP4_MIB_LOCAL_AS))
return 1;
else if (o->n_subid > 2 && o->ids[1] == BGP4_PEER_TABLE &&
o->ids[2] == BGP4_PEER_ENTRY)
o->ids[2] == BGP4_PEER_ENTRY)
{
if (o->n_subid == 3)
return 1;
@ -724,7 +723,8 @@ UNUSED, u8 current_state)
/* TODO can be remove after implementing all BGP4-MIB::bgpPeerTable columns */
u8 next_state = current_state;
struct oid *o_copy = o_start;
do {
do
{
snmp_log("do-while state %u", next_state);
snmp_oid_dump(o_start);
o_start = o_copy = update_bgp_oid(o_copy, next_state);
@ -996,7 +996,7 @@ snmp_bgp_search(struct snmp_proto *p, struct oid *o_start, struct oid *o_end, ui
// o_start = update_bgp_oid(o_start, next_state);
// snmp_oid_dump(o_start);
//
// snmp_log("search_bgp_mib() is NOT next_state dynamic %s",
// snmp_log("snmp_bgp_search() is NOT next_state dynamic %s",
// !is_dynamic(next_state) ? "true" : "false");
//
// if (!is_dynamic(next_state))

2
proto/snmp/bgp_mib.h
View File

@ -45,7 +45,7 @@ void snmp_bgp_register(struct snmp_proto *p);
// - int snmp_bgp_is_supported(struct oid *o);
//int snmp_bgp_valid_ip4(struct oid *o);
u8 snmp_bgp_state(struct oid *o);
//u8 snmp_bgp_state(const struct oid *o);
u8 snmp_bgp_get_valid(u8 state);
u8 snmp_bgp_getnext_valid(u8 state);

51
proto/snmp/snmp.c
View File

@ -15,6 +15,7 @@
#include "snmp.h"
#include "subagent.h"
#include "snmp_utils.h"
static void snmp_connected(sock *sk);
static void snmp_sock_err(sock *sk, int err);
@ -22,7 +23,7 @@ static void snmp_ping_timer(struct timer *tm);
static void snmp_startup(struct snmp_proto *p);
static void snmp_startup_timeout(timer *t);
static void snmp_start_locked(struct object_lock *lock);
static int snmp_shutdown(struct proto *P);
static const char * const snmp_state[] = {
[SNMP_ERR] = "SNMP ERROR",
@ -49,7 +50,7 @@ snmp_init(struct proto_config *CF)
p->local_port = cf->local_port;
p->remote_port = cf->remote_port;
p->local_as = cf->local_as;
snmp_log("chaning proto_snmp state to INIT");
snmp_log("changing proto_snmp state to INIT");
p->state = SNMP_INIT;
// p->timeout = cf->timeout;
@ -64,14 +65,25 @@ snmp_init(struct proto_config *CF)
static inline void
snmp_cleanup(struct snmp_proto *p)
{
struct additional_buffer *b;
WALK_LIST(b, p->additional_buffers)
{
mb_free(b->buf);
rem_node(&b->n);
mb_free(b);
}
init_list(&p->additional_buffers);
rfree(p->startup_timer);
rfree(p->ping_timer);
if (p->sock != NULL)
rfree(p->sock);
p->sock = NULL;
if (p->lock != NULL)
rfree(p->lock);
p->lock = NULL;
p->state = SNMP_DOWN;
}
@ -177,18 +189,14 @@ snmp_start_locked(struct object_lock *lock)
snmp_log("socket ready!, trying to connect");
}
static void
snmp_tx(sock *sk UNUSED)
{
snmp_log("snmp_tx() something, yay!");
}
static void
snmp_connected(sock *sk)
{
struct snmp_proto *p = sk->data;
snmp_log("snmp_connected() connection created");
byte *buf UNUSED = sk->rbuf;
byte *buf UNUSED = sk->rpos;
uint size = sk->rbuf + sk->rbsize - sk->rpos;
snmp_dump_packet(buf, size);
sk->rx_hook = snmp_rx;
sk->tx_hook = snmp_tx;
@ -203,8 +211,9 @@ static void
snmp_sock_err(sock *sk, int err)
{
snmp_log("snmp_sock_err() %s - err no: %d", strerror(err), err);
struct snmp_proto *p = sk->data;
p->errs++;
tm_stop(p->ping_timer);
rfree(p->sock);
@ -214,10 +223,16 @@ snmp_sock_err(sock *sk, int err)
p->lock = NULL;
snmp_log("changing proto_snmp state to ERR[OR]");
p->state = SNMP_ERR;
if (err)
p->state = SNMP_ERR;
else
{
snmp_shutdown((struct proto *) p);
return;
}
// TODO ping interval
tm_start(p->startup_timer, 15 S);
tm_start(p->startup_timer, 4 S);
}
static int
@ -274,15 +289,17 @@ snmp_start(struct proto *P)
peer->config = (struct bgp_config *) b->proto;
peer->peer_ip = bc->remote_ip;
struct net_addr *net = mb_allocz(p->p.pool, sizeof(struct net_addr));
net_fill_ip4(net, ipa_to_ip4(peer->peer_ip), IP4_MAX_PREFIX_LENGTH);
struct net_addr net;
net_fill_ip4(&net, ipa_to_ip4(peer->peer_ip), IP4_MAX_PREFIX_LENGTH);
trie_add_prefix(p->bgp_trie, net, IP4_MAX_PREFIX_LENGTH, IP4_MAX_PREFIX_LENGTH);
trie_add_prefix(p->bgp_trie, &net, IP4_MAX_PREFIX_LENGTH, IP4_MAX_PREFIX_LENGTH);
HASH_INSERT(p->bgp_hash, SNMP_HASH, peer);
}
}
init_list(&p->additional_buffers);
snmp_startup(p);
return PS_START;
}
@ -311,7 +328,8 @@ snmp_reconfigure(struct proto *P, struct proto_config *CF)
return 1;
}
static void snmp_show_proto_info(struct proto *P)
static void
snmp_show_proto_info(struct proto *P)
{
struct snmp_proto *sp = (void *) P;
struct snmp_config *c = (void *) P->cf;
@ -384,6 +402,7 @@ bp->stats.fsm_established_transitions);
static void
snmp_postconfig(struct proto_config *CF)
{
// walk the bgp protocols and cache their references
if (((struct snmp_config *) CF)->local_as == 0)
cf_error("local as not specified");
}

16
proto/snmp/snmp.h
View File

@ -113,8 +113,7 @@ struct snmp_proto {
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;
* (struct snmp_registered_oid) */
// map
struct f_trie *bgp_trie;
@ -129,16 +128,11 @@ struct snmp_proto {
uint to_send;
uint errs;
list additional_buffers; /* buffers of data to send that does not fit
* into socket's TX buffer */
};
/*
struct snmp_pdu {
node n;
//u32 session_id;
u32 transaction_id;
u32 packet_id; // in future need support for ranges of packet_id-s
};
*/
void snmp_tx(sock *sk);
#endif

18
proto/snmp/snmp_utils.c
View File

@ -184,7 +184,7 @@ snmp_valid_ip4_index(const struct oid *o, uint start)
if (start + 3 < o->n_subid)
return snmp_valid_ip4_index_unsafe(o, start);
else
return 0; // false
return 0;
}
/**
@ -200,9 +200,9 @@ snmp_valid_ip4_index_unsafe(const struct oid *o, uint start)
{
for (int i = 0; i < 4; i++)
if (o->ids[start + i] >= 256)
return 0; // false
return 0;
return 1; // true
return 1;
}
byte *
@ -267,7 +267,7 @@ snmp_put_oid(byte *buf, struct oid *oid)
put_u8(buf, oid->n_subid);
put_u8(++buf, oid->prefix);
put_u8(++buf, oid->include);
put_u8(++buf, 0); // PADDING
put_u8(++buf, 0); // padding
/* last increment */
++buf;
@ -357,16 +357,6 @@ snmp_oid_compare(const struct oid *left, const struct oid *right)
{
const u32 INTERNET_PREFIX[] = {1, 3, 6, 1};
/*
if (snmp_is_oid_empty(left) && snmp_is_oid_empty(right))
return 0;
if (snmp_is_oid_empty(right))
return -1;
if (snmp_is_oid_empty(left))
return 1;
*/
if (left->prefix == 0 && right->prefix == 0)
goto test_ids;

33
proto/snmp/subagent.c
View File

@ -221,6 +221,7 @@ de_allocate_pdu(struct snmp_proto *p, struct oid *oid, u8 type)
buf = pkt = sk->tbuf;
uint size = sk->tbsize;
if (size > AGENTX_HEADER_SIZE + )
{
snmp_log("de_allocate_pdu()");
@ -447,21 +448,34 @@ removeagentcaps_pdu(struct snmp_proto *p, struct oid *cap, struct agentx_context
return;
}
snmp_log("preparing to sk_send()");
int ret = sk_send(sk, pkt - buf);
struct agentx_header *h;
SNMP_CREATE(buf, struct agentx_header, h);
SNMP_SESSION(h, p);
ADVANCE(buf, size, AGENTX_HEADER_SIZE);
if (ret == 0)
snmp_log("sk_send sleep");
else if (ret < 0)
snmp_log("sk_send err");
else
log(L_INFO, "sk_send ok !!");
uint in_pkt;
if (c && c->length)
{
SNMP_HAS_CONTEXT(h);
in_pkt = snmp_put_nstr(buf, c->context, c->length) - buf;
ADVANCE(buf, size, in_pkt);
}
memcpy(buf, cap, snmp_oid_size(cap));
ADVANCE(buf, size, snmp_oid_size(cap));
// update state in snmp_proto structure
//int ret = sk_send(sk, buf - sk->tbuf);
int ret = sk_send(sk, buf - sk->tpos);
if (ret == 0)
snmp_log("sk_send sleep");
else if (ret < 0)
snmp_log("sk_send err");
else
log(L_INFO, "sk_send ok !!");
}
#endif
static inline void
refresh_ids(struct snmp_proto *p, struct agentx_header *h)
@ -594,7 +608,8 @@ snmp_registered_all(struct snmp_proto *p)
}
static void
snmp_register_mibs(struct snmp_proto *p) {
snmp_register_mibs(struct snmp_proto *p)
{
snmp_log("snmp_register_mibs()");
snmp_bgp_register(p);