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fixup! rt-feed-by-fib: addr to trie

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This commit is contained in:
katerina.kubecova 2023-10-02 11:51:46 +02:00
parent 6d58ca731f
commit 4de40e6767
4 changed files with 36 additions and 24 deletions
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14
nest/proto.c
View File

@ -522,23 +522,27 @@ channel_start_export(struct channel *c)
}
ASSERT(c->channel_state == CS_UP);
c->reqv_trie_lp = lp_new(c->proto->pool);
struct f_trie * trie = f_new_trie(c->reqv_trie_lp, 0);
trie_add_prefix(trie, c->out_subprefix, net_pxlen(c->out_subprefix), net_pxlen(c->out_subprefix));
c->out_req = (struct rt_export_request) {
.name = mb_sprintf(c->proto->pool, "%s.%s", c->proto->name, c->name),
.list = proto_work_list(c->proto),
.pool = c->proto->pool,
.feed_block_size = c->feed_block_size,
.prefilter.net_filter_trie = trie,
.prefilter.addr_mode = c->out_subprefix ? TE_ADDR_IN : TE_ADDR_NONE,
.trace_routes = c->debug | c->proto->debug,
.dump_req = channel_dump_export_req,
.log_state_change = channel_export_log_state_change,
};
if(c->out_subprefix!=0){
c->reqv_trie_lp = lp_new(c->proto->pool);
struct f_trie * trie = f_new_trie(c->reqv_trie_lp, 0);
if (c->out_subprefix->type == NET_IP4 || c->out_subprefix->type == NET_VPN4 || c->out_subprefix->type == NET_ROA4){
trie_add_prefix(trie, c->out_subprefix, net_pxlen(c->out_subprefix), 48);
}
else trie_add_prefix(trie, c->out_subprefix, net_pxlen(c->out_subprefix), 128);
c->out_req.prefilter.net_filter_trie = trie;
}
bmap_init(&c->export_map, c->proto->pool, 16);
bmap_init(&c->export_reject_map, c->proto->pool, 16);

11
nest/rt-table.c
View File

@ -1204,19 +1204,18 @@ rte_export(struct rt_table_export_hook *th, struct rt_pending_export *rpe)
goto ignore; /* Seen already */
const net_addr *n = rpe->new_best ? rpe->new_best->rte.net : rpe->old_best->rte.net;
ASSERT_DIE(1);
switch (hook->req->prefilter.addr_mode)
{
case TE_ADDR_NONE:
break;
case TE_ADDR_IN:
if (!net_in_netX(n, hook->req->prefilter.addr))
if (!net_in_netX_from_export_request(n, hook->req->prefilter.addr))
goto ignore;
break;
case TE_ADDR_EQUAL:
if (!net_equal(n, hook->req->prefilter.addr))
if (!net_equal_from_export_request(n, hook->req->prefilter.addr))
goto ignore;
break;
@ -2163,7 +2162,7 @@ rt_table_export_start_feed(struct rtable_private *tab, struct rt_table_export_ho
{
hook->walk_state = mb_allocz(hook->h.pool, sizeof (struct f_trie_walk_state));
hook->walk_lock = rt_lock_trie(tab);
trie_walk_init(hook->walk_state, tab->trie, req->addr);
trie_walk_init(hook->walk_state, tab->trie, req->prefilter.addr);
hook->h.event.hook = rt_feed_by_trie;
hook->walk_last.type = 0;
break;
@ -4423,7 +4422,7 @@ rt_feed_equal(void *data)
ASSERT_DIE(atomic_load_explicit(&c->h.export_state, memory_order_relaxed) == TES_FEEDING);
ASSERT_DIE(c->h.req->prefilter.addr_mode == TE_ADDR_EQUAL);
if (n = net_find(tab, c->h.req->addr))
if (n = net_find(tab, c->h.req->prefilter.addr))
ASSERT_DIE(rt_prepare_feed(c, n, &block));
}
@ -4445,7 +4444,7 @@ rt_feed_for(void *data)
ASSERT_DIE(atomic_load_explicit(&c->h.export_state, memory_order_relaxed) == TES_FEEDING);
ASSERT_DIE(c->h.req->prefilter.addr_mode == TE_ADDR_FOR);
if (n = net_route(tab, c->h.req->addr))
if (n = net_route(tab, c->h.req->prefilter.addr))
ASSERT_DIE(rt_prepare_feed(c, n, &block));
}

27
nest/rt.h
View File

@ -291,13 +291,18 @@ struct rt_prefilter_address{
const struct f_trie *net_filter_trie;
const net_addr *addr; /* Network prefilter address */
};
u8 addr_mode; /* Network prefilter mode (TE_ADDR_*) */
/* Network prefilter mode (TE_ADDR_*) */
enum {
TE_ADDR_NONE=0, /* No address matching */
TE_ADDR_EQUAL, /* Exact query - show route <addr> */
TE_ADDR_FOR, /* Longest prefix match - show route for <addr> */
TE_ADDR_IN /* Interval query - show route in <addr> */
} addr_mode;
}PACKED;
struct rt_export_request {
struct rt_export_hook *hook; /* Table part of the export */
char *name;
const net_addr *addr; /* Network prefilter address */
char *name; /* Network prefilter address */
u8 trace_routes;
uint feed_block_size; /* How many routes to feed at once */
struct rt_prefilter_address prefilter;
@ -321,6 +326,16 @@ struct rt_export_request {
void (*log_state_change)(struct rt_export_request *req, u8);
};
static inline int net_in_netX_from_export_request(const net_addr *a, const net_addr *n){
if (a->type != n->type)
return 0;
return (net_pxlen(n) <= net_pxlen(a)) && ipa_in_netX(net_prefix(a), n);
}
static inline int net_equal_from_export_request(const net_addr *a, const net_addr *b)
{ return (a->length == b->length) && !memcmp(a, b, a->length); }
struct rt_export_hook {
node n;
struct rt_exporter *table; /* The connected table */
@ -390,12 +405,6 @@ struct rt_table_export_hook {
#define TES_STOP 4
#define TES_MAX 5
/* Value of addr_mode */
#define TE_ADDR_NONE 0 /* No address matching */
#define TE_ADDR_EQUAL 1 /* Exact query - show route <addr> */
#define TE_ADDR_FOR 2 /* Longest prefix match - show route for <addr> */
#define TE_ADDR_IN 3 /* Interval query - show route in <addr> */
#define TFT_FIB 1
#define TFT_TRIE 2

8
proto/bgp/attrs.c
View File

@ -1896,7 +1896,7 @@ bgp_out_table_feed(void *data)
int max = 512;
const net_addr *neq = (hook->h.req->prefilter.addr_mode == TE_ADDR_EQUAL) ? hook->h.req->addr : NULL;
const net_addr *neq = (hook->h.req->prefilter.addr_mode == TE_ADDR_EQUAL) ? hook->h.req->prefilter.addr : NULL;
const net_addr *cand = NULL;
do {
@ -1905,7 +1905,7 @@ bgp_out_table_feed(void *data)
switch (hook->h.req->prefilter.addr_mode)
{
case TE_ADDR_IN:
if (!net_in_netX(n->net, hook->h.req->addr))
if (!net_in_netX_from_export_request(n->net, hook->h.req->prefilter.addr))
continue;
/* fall through */
case TE_ADDR_NONE:
@ -1917,13 +1917,13 @@ bgp_out_table_feed(void *data)
case TE_ADDR_FOR:
if (!neq)
{
if (net_in_netX(hook->h.req->addr, n->net) && (!cand || (n->net->length > cand->length)))
if (net_in_netX_from_export_request(hook->h.req->prefilter.addr, n->net) && (!cand || (n->net->length > cand->length)))
cand = n->net;
continue;
}
/* fall through */
case TE_ADDR_EQUAL:
if (!net_equal(n->net, neq))
if (!net_equal_from_export_request(n->net, neq))
continue;
break;
}