Merge branch 'add-path'
This commit is contained in:
Ondrej Zajicek
commit
6601a14831
22 changed files with 660 additions and 201 deletions
|
|
@ -795,7 +795,7 @@ interpret(struct f_inst *what)
|
|||
case SA_GW: res.val.px.ip = rta->gw; break;
|
||||
case SA_NET: res.val.px.ip = (*f_rte)->net->n.prefix;
|
||||
res.val.px.len = (*f_rte)->net->n.pxlen; break;
|
||||
case SA_PROTO: res.val.s = rta->proto->name; break;
|
||||
case SA_PROTO: res.val.s = rta->src->proto->name; break;
|
||||
case SA_SOURCE: res.val.i = rta->source; break;
|
||||
case SA_SCOPE: res.val.i = rta->scope; break;
|
||||
case SA_CAST: res.val.i = rta->cast; break;
|
||||
|
|
@ -827,7 +827,7 @@ interpret(struct f_inst *what)
|
|||
case SA_GW:
|
||||
{
|
||||
ip_addr ip = v1.val.px.ip;
|
||||
neighbor *n = neigh_find(rta->proto, &ip, 0);
|
||||
neighbor *n = neigh_find(rta->src->proto, &ip, 0);
|
||||
if (!n || (n->scope == SCOPE_HOST))
|
||||
runtime( "Invalid gw address" );
|
||||
|
||||
|
|
|
|||
|
|
@ -11,6 +11,7 @@
|
|||
|
||||
#include <stdarg.h>
|
||||
#include <string.h>
|
||||
#include <strings.h>
|
||||
|
||||
int bsprintf(char *str, const char *fmt, ...);
|
||||
int bvsprintf(char *str, const char *fmt, va_list args);
|
||||
|
|
|
|||
13
nest/proto.c
13
nest/proto.c
|
|
@ -218,6 +218,7 @@ proto_free_ahooks(struct proto *p)
|
|||
p->main_ahook = NULL;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* proto_config_new - create a new protocol configuration
|
||||
* @pr: protocol the configuration will belong to
|
||||
|
|
@ -830,6 +831,9 @@ proto_schedule_feed(struct proto *p, int initial)
|
|||
/* Connect protocol to routing table */
|
||||
if (initial && !p->proto->multitable)
|
||||
{
|
||||
p->main_source = rt_get_source(p, 0);
|
||||
rt_lock_source(p->main_source);
|
||||
|
||||
p->main_ahook = proto_add_announce_hook(p, p->table, &p->stats);
|
||||
p->main_ahook->in_filter = p->cf->in_filter;
|
||||
p->main_ahook->out_filter = p->cf->out_filter;
|
||||
|
|
@ -837,6 +841,7 @@ proto_schedule_feed(struct proto *p, int initial)
|
|||
p->main_ahook->in_limit = p->cf->in_limit;
|
||||
p->main_ahook->out_limit = p->cf->out_limit;
|
||||
p->main_ahook->in_keep_filtered = p->cf->in_keep_filtered;
|
||||
|
||||
proto_reset_limit(p->main_ahook->rx_limit);
|
||||
proto_reset_limit(p->main_ahook->in_limit);
|
||||
proto_reset_limit(p->main_ahook->out_limit);
|
||||
|
|
@ -890,6 +895,8 @@ proto_flush_loop(void *unused UNUSED)
|
|||
return;
|
||||
}
|
||||
|
||||
rt_prune_sources();
|
||||
|
||||
again:
|
||||
WALK_LIST(p, flush_proto_list)
|
||||
if (p->flushing)
|
||||
|
|
@ -1088,6 +1095,12 @@ proto_notify_state(struct proto *p, unsigned ps)
|
|||
if ((cs == FS_FEEDING) || (cs == FS_HAPPY))
|
||||
proto_schedule_flush(p);
|
||||
|
||||
if (p->proto->multitable)
|
||||
{
|
||||
rt_unlock_source(p->main_source);
|
||||
p->main_source = NULL;
|
||||
}
|
||||
|
||||
neigh_prune(); // FIXME convert neighbors to resource?
|
||||
rfree(p->pool);
|
||||
p->pool = NULL;
|
||||
|
|
|
|||
|
|
@ -187,7 +187,7 @@ struct proto {
|
|||
int (*reload_routes)(struct proto *);
|
||||
|
||||
/*
|
||||
* Routing entry hooks (called only for rte's belonging to this protocol):
|
||||
* Routing entry hooks (called only for routes belonging to this protocol):
|
||||
*
|
||||
* rte_recalculate Called at the beginning of the best route selection
|
||||
* rte_better Compare two rte's and decide which one is better (1=first, 0=second).
|
||||
|
|
@ -203,6 +203,7 @@ struct proto {
|
|||
void (*rte_remove)(struct network *, struct rte *);
|
||||
|
||||
struct rtable *table; /* Our primary routing table */
|
||||
struct rte_src *main_source; /* Primary route source */
|
||||
struct announce_hook *main_ahook; /* Primary announcement hook */
|
||||
struct announce_hook *ahooks; /* Announcement hooks for this protocol */
|
||||
|
||||
|
|
|
|||
25
nest/route.h
25
nest/route.h
|
|
@ -251,10 +251,10 @@ void rt_unlock_table(rtable *);
|
|||
void rt_setup(pool *, rtable *, char *, struct rtable_config *);
|
||||
static inline net *net_find(rtable *tab, ip_addr addr, unsigned len) { return (net *) fib_find(&tab->fib, &addr, len); }
|
||||
static inline net *net_get(rtable *tab, ip_addr addr, unsigned len) { return (net *) fib_get(&tab->fib, &addr, len); }
|
||||
rte *rte_find(net *net, struct proto *p);
|
||||
rte *rte_find(net *net, struct rte_src *src);
|
||||
rte *rte_get_temp(struct rta *);
|
||||
void rte_update2(struct announce_hook *ah, net *net, rte *new, struct proto *src);
|
||||
static inline void rte_update(rtable *tab, net *net, struct proto *p, struct proto *src, rte *new) { rte_update2(p->main_ahook, net, new, src); }
|
||||
void rte_update2(struct announce_hook *ah, net *net, rte *new, struct rte_src *src);
|
||||
static inline void rte_update(struct proto *p, net *net, rte *new) { rte_update2(p->main_ahook, net, new, p->main_source); }
|
||||
void rte_discard(rtable *tab, rte *old);
|
||||
int rt_examine(rtable *t, ip_addr prefix, int pxlen, struct proto *p, struct filter *filter);
|
||||
void rte_dump(rte *);
|
||||
|
|
@ -300,9 +300,18 @@ struct mpnh {
|
|||
unsigned char weight;
|
||||
};
|
||||
|
||||
struct rte_src {
|
||||
struct rte_src *next; /* Hash chain */
|
||||
struct proto *proto; /* Protocol the source is based on */
|
||||
u32 private_id; /* Private ID, assigned by the protocol */
|
||||
u32 global_id; /* Globally unique ID of the source */
|
||||
unsigned uc; /* Use count */
|
||||
};
|
||||
|
||||
|
||||
typedef struct rta {
|
||||
struct rta *next, **pprev; /* Hash chain */
|
||||
struct proto *proto; /* Protocol instance that originally created the route */
|
||||
struct rte_src *src; /* Route source that created the route */
|
||||
unsigned uc; /* Use count */
|
||||
byte source; /* Route source (RTS_...) */
|
||||
byte scope; /* Route scope (SCOPE_... -- see ip.h) */
|
||||
|
|
@ -421,6 +430,13 @@ typedef struct ea_list {
|
|||
#define EALF_BISECT 2 /* Use interval bisection for searching */
|
||||
#define EALF_CACHED 4 /* Attributes belonging to cached rta */
|
||||
|
||||
struct rte_src *rt_find_source(struct proto *p, u32 id);
|
||||
struct rte_src *rt_get_source(struct proto *p, u32 id);
|
||||
static inline void rt_lock_source(struct rte_src *src) { src->uc++; }
|
||||
static inline void rt_unlock_source(struct rte_src *src) { src->uc--; }
|
||||
void rt_prune_sources(void);
|
||||
|
||||
|
||||
eattr *ea_find(ea_list *, unsigned ea);
|
||||
int ea_get_int(ea_list *, unsigned ea, int def);
|
||||
void ea_dump(ea_list *);
|
||||
|
|
@ -437,6 +453,7 @@ static inline int mpnh_same(struct mpnh *x, struct mpnh *y)
|
|||
|
||||
void rta_init(void);
|
||||
rta *rta_lookup(rta *); /* Get rta equivalent to this one, uc++ */
|
||||
static inline int rta_is_cached(rta *r) { return r->aflags & RTAF_CACHED; }
|
||||
static inline rta *rta_clone(rta *r) { r->uc++; return r; }
|
||||
void rta__free(rta *r);
|
||||
static inline void rta_free(rta *r) { if (r && !--r->uc) rta__free(r); }
|
||||
|
|
|
|||
194
nest/rt-attr.c
194
nest/rt-attr.c
|
|
@ -58,9 +58,194 @@ pool *rta_pool;
|
|||
|
||||
static slab *rta_slab;
|
||||
static slab *mpnh_slab;
|
||||
static slab *rte_src_slab;
|
||||
|
||||
/* rte source ID bitmap */
|
||||
static u32 *src_ids;
|
||||
static u32 src_id_size, src_id_used, src_id_pos;
|
||||
#define SRC_ID_SIZE_DEF 4
|
||||
|
||||
/* rte source hash */
|
||||
static struct rte_src **src_table;
|
||||
static u32 src_hash_order, src_hash_size, src_hash_count;
|
||||
#define SRC_HASH_ORDER_DEF 6
|
||||
#define SRC_HASH_ORDER_MAX 18
|
||||
#define SRC_HASH_ORDER_MIN 10
|
||||
|
||||
struct protocol *attr_class_to_protocol[EAP_MAX];
|
||||
|
||||
|
||||
static void
|
||||
rte_src_init(void)
|
||||
{
|
||||
rte_src_slab = sl_new(rta_pool, sizeof(struct rte_src));
|
||||
|
||||
src_id_pos = 0;
|
||||
src_id_size = SRC_ID_SIZE_DEF;
|
||||
src_ids = mb_allocz(rta_pool, src_id_size * sizeof(u32));
|
||||
|
||||
/* ID 0 is reserved */
|
||||
src_ids[0] = 1;
|
||||
src_id_used = 1;
|
||||
|
||||
src_hash_count = 0;
|
||||
src_hash_order = SRC_HASH_ORDER_DEF;
|
||||
src_hash_size = 1 << src_hash_order;
|
||||
src_table = mb_allocz(rta_pool, src_hash_size * sizeof(struct rte_src *));
|
||||
}
|
||||
|
||||
static inline int u32_cto(unsigned int x) { return ffs(~x) - 1; }
|
||||
|
||||
static inline u32
|
||||
rte_src_alloc_id(void)
|
||||
{
|
||||
int i, j;
|
||||
for (i = src_id_pos; i < src_id_size; i++)
|
||||
if (src_ids[i] != 0xffffffff)
|
||||
goto found;
|
||||
|
||||
/* If we are at least 7/8 full, expand */
|
||||
if (src_id_used > (src_id_size * 28))
|
||||
{
|
||||
src_id_size *= 2;
|
||||
src_ids = mb_realloc(src_ids, src_id_size * sizeof(u32));
|
||||
bzero(src_ids + i, (src_id_size - i) * sizeof(u32));
|
||||
goto found;
|
||||
}
|
||||
|
||||
for (i = 0; i < src_id_pos; i++)
|
||||
if (src_ids[i] != 0xffffffff)
|
||||
goto found;
|
||||
|
||||
ASSERT(0);
|
||||
|
||||
found:
|
||||
ASSERT(i < 0x8000000);
|
||||
|
||||
src_id_pos = i;
|
||||
j = u32_cto(src_ids[i]);
|
||||
|
||||
src_ids[i] |= (1 << j);
|
||||
src_id_used++;
|
||||
return 32 * i + j;
|
||||
}
|
||||
|
||||
static inline void
|
||||
rte_src_free_id(u32 id)
|
||||
{
|
||||
int i = id / 32;
|
||||
int j = id % 32;
|
||||
|
||||
ASSERT((i < src_id_size) && (src_ids[i] & (1 << j)));
|
||||
src_ids[i] &= ~(1 << j);
|
||||
src_id_used--;
|
||||
}
|
||||
|
||||
static inline u32 rte_src_hash(struct proto *p, u32 x, u32 order)
|
||||
{ return (x * 2902958171u) >> (32 - order); }
|
||||
|
||||
static void
|
||||
rte_src_rehash(int step)
|
||||
{
|
||||
struct rte_src **old_tab, *src, *src_next;
|
||||
u32 old_size, hash, i;
|
||||
|
||||
old_tab = src_table;
|
||||
old_size = src_hash_size;
|
||||
|
||||
src_hash_order += step;
|
||||
src_hash_size = 1 << src_hash_order;
|
||||
src_table = mb_allocz(rta_pool, src_hash_size * sizeof(struct rte_src *));
|
||||
|
||||
for (i = 0; i < old_size; i++)
|
||||
for (src = old_tab[i]; src; src = src_next)
|
||||
{
|
||||
src_next = src->next;
|
||||
hash = rte_src_hash(src->proto, src->private_id, src_hash_order);
|
||||
src->next = src_table[hash];
|
||||
src_table[hash] = src;
|
||||
}
|
||||
|
||||
mb_free(old_tab);
|
||||
}
|
||||
|
||||
struct rte_src *
|
||||
rt_find_source(struct proto *p, u32 id)
|
||||
{
|
||||
struct rte_src *src;
|
||||
u32 hash = rte_src_hash(p, id, src_hash_order);
|
||||
|
||||
for (src = src_table[hash]; src; src = src->next)
|
||||
if ((src->proto == p) && (src->private_id == id))
|
||||
return src;
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
struct rte_src *
|
||||
rt_get_source(struct proto *p, u32 id)
|
||||
{
|
||||
struct rte_src *src;
|
||||
u32 hash = rte_src_hash(p, id, src_hash_order);
|
||||
|
||||
for (src = src_table[hash]; src; src = src->next)
|
||||
if ((src->proto == p) && (src->private_id == id))
|
||||
return src;
|
||||
|
||||
src = sl_alloc(rte_src_slab);
|
||||
src->proto = p;
|
||||
src->private_id = id;
|
||||
src->global_id = rte_src_alloc_id();
|
||||
src->uc = 0;
|
||||
|
||||
src->next = src_table[hash];
|
||||
src_table[hash] = src;
|
||||
|
||||
src_hash_count++;
|
||||
if ((src_hash_count > src_hash_size) && (src_hash_order < SRC_HASH_ORDER_MAX))
|
||||
rte_src_rehash(1);
|
||||
|
||||
return src;
|
||||
}
|
||||
|
||||
static inline void
|
||||
rt_remove_source(struct rte_src **sp)
|
||||
{
|
||||
struct rte_src *src = *sp;
|
||||
|
||||
*sp = src->next;
|
||||
rte_src_free_id(src->global_id);
|
||||
sl_free(rte_src_slab, src);
|
||||
src_hash_count--;
|
||||
}
|
||||
|
||||
void
|
||||
rt_prune_sources(void)
|
||||
{
|
||||
struct rte_src **sp;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < src_hash_size; i++)
|
||||
{
|
||||
sp = &src_table[i];
|
||||
while (*sp)
|
||||
{
|
||||
if ((*sp)->uc == 0)
|
||||
rt_remove_source(sp);
|
||||
else
|
||||
sp = &(*sp)->next;
|
||||
}
|
||||
}
|
||||
|
||||
while ((src_hash_count < (src_hash_size / 4)) && (src_hash_order > SRC_HASH_ORDER_MIN))
|
||||
rte_src_rehash(-1);
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Multipath Next Hop
|
||||
*/
|
||||
|
||||
static inline unsigned int
|
||||
mpnh_hash(struct mpnh *x)
|
||||
{
|
||||
|
|
@ -681,14 +866,14 @@ rta_alloc_hash(void)
|
|||
static inline unsigned int
|
||||
rta_hash(rta *a)
|
||||
{
|
||||
return (a->proto->hash_key ^ ipa_hash(a->gw) ^
|
||||
return (((unsigned) a->src) ^ ipa_hash(a->gw) ^
|
||||
mpnh_hash(a->nexthops) ^ ea_hash(a->eattrs)) & 0xffff;
|
||||
}
|
||||
|
||||
static inline int
|
||||
rta_same(rta *x, rta *y)
|
||||
{
|
||||
return (x->proto == y->proto &&
|
||||
return (x->src == y->src &&
|
||||
x->source == y->source &&
|
||||
x->scope == y->scope &&
|
||||
x->cast == y->cast &&
|
||||
|
|
@ -785,6 +970,7 @@ rta_lookup(rta *o)
|
|||
r = rta_copy(o);
|
||||
r->hash_key = h;
|
||||
r->aflags = RTAF_CACHED;
|
||||
rt_lock_source(r->src);
|
||||
rt_lock_hostentry(r->hostentry);
|
||||
rta_insert(r);
|
||||
|
||||
|
|
@ -804,6 +990,7 @@ rta__free(rta *a)
|
|||
a->next->pprev = a->pprev;
|
||||
a->aflags = 0; /* Poison the entry */
|
||||
rt_unlock_hostentry(a->hostentry);
|
||||
rt_unlock_source(a->src);
|
||||
mpnh_free(a->nexthops);
|
||||
ea_free(a->eattrs);
|
||||
sl_free(rta_slab, a);
|
||||
|
|
@ -826,7 +1013,7 @@ rta_dump(rta *a)
|
|||
static char *rtd[] = { "", " DEV", " HOLE", " UNREACH", " PROHIBIT" };
|
||||
|
||||
debug("p=%s uc=%d %s %s%s%s h=%04x",
|
||||
a->proto->name, a->uc, rts[a->source], ip_scope_text(a->scope), rtc[a->cast],
|
||||
a->src->proto->name, a->uc, rts[a->source], ip_scope_text(a->scope), rtc[a->cast],
|
||||
rtd[a->dest], a->hash_key);
|
||||
if (!(a->aflags & RTAF_CACHED))
|
||||
debug(" !CACHED");
|
||||
|
|
@ -894,6 +1081,7 @@ rta_init(void)
|
|||
rta_slab = sl_new(rta_pool, sizeof(rta));
|
||||
mpnh_slab = sl_new(rta_pool, sizeof(struct mpnh));
|
||||
rta_alloc_hash();
|
||||
rte_src_init();
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
|
|||
|
|
@ -51,29 +51,31 @@ dev_ifa_notify(struct proto *p, unsigned c, struct ifa *ad)
|
|||
DBG("dev_if_notify: device shutdown: prefix not found\n");
|
||||
return;
|
||||
}
|
||||
rte_update(p->table, n, p, p, NULL);
|
||||
rte_update(p, n, NULL);
|
||||
}
|
||||
else if (c & IF_CHANGE_UP)
|
||||
{
|
||||
rta *a, A;
|
||||
rta *a;
|
||||
net *n;
|
||||
rte *e;
|
||||
|
||||
DBG("dev_if_notify: %s:%I going up\n", ad->iface->name, ad->ip);
|
||||
bzero(&A, sizeof(A));
|
||||
A.proto = p;
|
||||
A.source = RTS_DEVICE;
|
||||
A.scope = SCOPE_UNIVERSE;
|
||||
A.cast = RTC_UNICAST;
|
||||
A.dest = RTD_DEVICE;
|
||||
A.iface = ad->iface;
|
||||
A.eattrs = NULL;
|
||||
a = rta_lookup(&A);
|
||||
|
||||
rta a0 = {
|
||||
.src = p->main_source,
|
||||
.source = RTS_DEVICE,
|
||||
.scope = SCOPE_UNIVERSE,
|
||||
.cast = RTC_UNICAST,
|
||||
.dest = RTD_DEVICE,
|
||||
.iface = ad->iface
|
||||
};
|
||||
|
||||
a = rta_lookup(&a0);
|
||||
n = net_get(p->table, ad->prefix, ad->pxlen);
|
||||
e = rte_get_temp(a);
|
||||
e->net = n;
|
||||
e->pflags = 0;
|
||||
rte_update(p->table, n, p, p, e);
|
||||
rte_update(p, n, e);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
117
nest/rt-table.c
117
nest/rt-table.c
|
|
@ -58,6 +58,14 @@ static void rt_next_hop_update(rtable *tab);
|
|||
|
||||
static inline void rt_schedule_gc(rtable *tab);
|
||||
|
||||
static inline struct ea_list *
|
||||
make_tmp_attrs(struct rte *rt, struct linpool *pool)
|
||||
{
|
||||
struct ea_list *(*mta)(struct rte *rt, struct linpool *pool);
|
||||
mta = rt->attrs->src->proto->make_tmp_attrs;
|
||||
return mta ? mta(rt, rte_update_pool) : NULL;
|
||||
}
|
||||
|
||||
/* Like fib_route(), but skips empty net entries */
|
||||
static net *
|
||||
net_route(rtable *tab, ip_addr a, int len)
|
||||
|
|
@ -88,17 +96,17 @@ rte_init(struct fib_node *N)
|
|||
/**
|
||||
* rte_find - find a route
|
||||
* @net: network node
|
||||
* @p: protocol
|
||||
* @src: route source
|
||||
*
|
||||
* The rte_find() function returns a route for destination @net
|
||||
* which belongs has been defined by protocol @p.
|
||||
* which is from route source @src.
|
||||
*/
|
||||
rte *
|
||||
rte_find(net *net, struct proto *p)
|
||||
rte_find(net *net, struct rte_src *src)
|
||||
{
|
||||
rte *e = net->routes;
|
||||
|
||||
while (e && e->attrs->proto != p)
|
||||
while (e && e->attrs->src != src)
|
||||
e = e->next;
|
||||
return e;
|
||||
}
|
||||
|
|
@ -119,7 +127,7 @@ rte_get_temp(rta *a)
|
|||
|
||||
e->attrs = a;
|
||||
e->flags = 0;
|
||||
e->pref = a->proto->preference;
|
||||
e->pref = a->src->proto->preference;
|
||||
return e;
|
||||
}
|
||||
|
||||
|
|
@ -148,16 +156,16 @@ rte_better(rte *new, rte *old)
|
|||
return 1;
|
||||
if (new->pref < old->pref)
|
||||
return 0;
|
||||
if (new->attrs->proto->proto != old->attrs->proto->proto)
|
||||
if (new->attrs->src->proto->proto != old->attrs->src->proto->proto)
|
||||
{
|
||||
/*
|
||||
* If the user has configured protocol preferences, so that two different protocols
|
||||
* have the same preference, try to break the tie by comparing addresses. Not too
|
||||
* useful, but keeps the ordering of routes unambiguous.
|
||||
*/
|
||||
return new->attrs->proto->proto > old->attrs->proto->proto;
|
||||
return new->attrs->src->proto->proto > old->attrs->src->proto->proto;
|
||||
}
|
||||
if (better = new->attrs->proto->rte_better)
|
||||
if (better = new->attrs->src->proto->rte_better)
|
||||
return better(new, old);
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -201,8 +209,7 @@ export_filter(struct announce_hook *ah, rte *rt0, rte **rt_free, ea_list **tmpa,
|
|||
/* If called does not care for eattrs, we prepare one internally */
|
||||
if (!tmpa)
|
||||
{
|
||||
struct proto *src = rt->attrs->proto;
|
||||
tmpb = src->make_tmp_attrs ? src->make_tmp_attrs(rt, rte_update_pool) : NULL;
|
||||
tmpb = make_tmp_attrs(rt, rte_update_pool);
|
||||
tmpa = &tmpb;
|
||||
}
|
||||
|
||||
|
|
@ -552,9 +559,9 @@ rte_announce(rtable *tab, unsigned type, net *net, rte *new, rte *old, rte *befo
|
|||
if (type == RA_OPTIMAL)
|
||||
{
|
||||
if (new)
|
||||
new->attrs->proto->stats.pref_routes++;
|
||||
new->attrs->src->proto->stats.pref_routes++;
|
||||
if (old)
|
||||
old->attrs->proto->stats.pref_routes--;
|
||||
old->attrs->src->proto->stats.pref_routes--;
|
||||
|
||||
if (tab->hostcache)
|
||||
rt_notify_hostcache(tab, net);
|
||||
|
|
@ -605,7 +612,7 @@ rte_validate(rte *e)
|
|||
void
|
||||
rte_free(rte *e)
|
||||
{
|
||||
if (e->attrs->aflags & RTAF_CACHED)
|
||||
if (rta_is_cached(e->attrs))
|
||||
rta_free(e->attrs);
|
||||
sl_free(rte_slab, e);
|
||||
}
|
||||
|
|
@ -625,13 +632,13 @@ rte_same(rte *x, rte *y)
|
|||
x->flags == y->flags &&
|
||||
x->pflags == y->pflags &&
|
||||
x->pref == y->pref &&
|
||||
(!x->attrs->proto->rte_same || x->attrs->proto->rte_same(x, y));
|
||||
(!x->attrs->src->proto->rte_same || x->attrs->src->proto->rte_same(x, y));
|
||||
}
|
||||
|
||||
static inline int rte_is_ok(rte *e) { return e && !rte_is_filtered(e); }
|
||||
|
||||
static void
|
||||
rte_recalculate(struct announce_hook *ah, net *net, rte *new, ea_list *tmpa, struct proto *src)
|
||||
rte_recalculate(struct announce_hook *ah, net *net, rte *new, ea_list *tmpa, struct rte_src *src)
|
||||
{
|
||||
struct proto *p = ah->proto;
|
||||
struct rtable *table = ah->table;
|
||||
|
|
@ -645,7 +652,7 @@ rte_recalculate(struct announce_hook *ah, net *net, rte *new, ea_list *tmpa, str
|
|||
k = &net->routes; /* Find and remove original route from the same protocol */
|
||||
while (old = *k)
|
||||
{
|
||||
if (old->attrs->proto == src)
|
||||
if (old->attrs->src == src)
|
||||
{
|
||||
/* If there is the same route in the routing table but from
|
||||
* a different sender, then there are two paths from the
|
||||
|
|
@ -681,7 +688,7 @@ rte_recalculate(struct announce_hook *ah, net *net, rte *new, ea_list *tmpa, str
|
|||
#ifdef CONFIG_RIP
|
||||
/* lastmod is used internally by RIP as the last time
|
||||
when the route was received. */
|
||||
if (src->proto == &proto_rip)
|
||||
if (src->proto->proto == &proto_rip)
|
||||
old->lastmod = now;
|
||||
#endif
|
||||
return;
|
||||
|
|
@ -796,7 +803,7 @@ rte_recalculate(struct announce_hook *ah, net *net, rte *new, ea_list *tmpa, str
|
|||
/* If routes are not sorted, find the best route and move it on
|
||||
the first position. There are several optimized cases. */
|
||||
|
||||
if (src->rte_recalculate && src->rte_recalculate(table, net, new, old, old_best))
|
||||
if (src->proto->rte_recalculate && src->proto->rte_recalculate(table, net, new, old, old_best))
|
||||
goto do_recalculate;
|
||||
|
||||
if (new && rte_better(new, old_best))
|
||||
|
|
@ -970,7 +977,7 @@ rte_unhide_dummy_routes(net *net, rte **dummy)
|
|||
*/
|
||||
|
||||
void
|
||||
rte_update2(struct announce_hook *ah, net *net, rte *new, struct proto *src)
|
||||
rte_update2(struct announce_hook *ah, net *net, rte *new, struct rte_src *src)
|
||||
{
|
||||
struct proto *p = ah->proto;
|
||||
struct proto_stats *stats = ah->stats;
|
||||
|
|
@ -1004,8 +1011,7 @@ rte_update2(struct announce_hook *ah, net *net, rte *new, struct proto *src)
|
|||
}
|
||||
else
|
||||
{
|
||||
if (src->make_tmp_attrs)
|
||||
tmpa = src->make_tmp_attrs(new, rte_update_pool);
|
||||
tmpa = make_tmp_attrs(new, rte_update_pool);
|
||||
if (filter && (filter != FILTER_REJECT))
|
||||
{
|
||||
ea_list *old_tmpa = tmpa;
|
||||
|
|
@ -1020,17 +1026,25 @@ rte_update2(struct announce_hook *ah, net *net, rte *new, struct proto *src)
|
|||
|
||||
new->flags |= REF_FILTERED;
|
||||
}
|
||||
if (tmpa != old_tmpa && src->store_tmp_attrs)
|
||||
src->store_tmp_attrs(new, tmpa);
|
||||
if (tmpa != old_tmpa && src->proto->store_tmp_attrs)
|
||||
src->proto->store_tmp_attrs(new, tmpa);
|
||||
}
|
||||
}
|
||||
|
||||
if (!(new->attrs->aflags & RTAF_CACHED)) /* Need to copy attributes */
|
||||
if (!rta_is_cached(new->attrs)) /* Need to copy attributes */
|
||||
new->attrs = rta_lookup(new->attrs);
|
||||
new->flags |= REF_COW;
|
||||
}
|
||||
else
|
||||
stats->imp_withdraws_received++;
|
||||
{
|
||||
stats->imp_withdraws_received++;
|
||||
|
||||
if (!net || !src)
|
||||
{
|
||||
stats->imp_withdraws_ignored++;
|
||||
rte_update_unlock();
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
recalc:
|
||||
rte_hide_dummy_routes(net, &dummy);
|
||||
|
|
@ -1051,12 +1065,10 @@ rte_update2(struct announce_hook *ah, net *net, rte *new, struct proto *src)
|
|||
static inline void
|
||||
rte_announce_i(rtable *tab, unsigned type, net *n, rte *new, rte *old)
|
||||
{
|
||||
struct proto *src;
|
||||
ea_list *tmpa;
|
||||
|
||||
rte_update_lock();
|
||||
src = new->attrs->proto;
|
||||
tmpa = src->make_tmp_attrs ? src->make_tmp_attrs(new, rte_update_pool) : NULL;
|
||||
tmpa = make_tmp_attrs(new, rte_update_pool);
|
||||
rte_announce(tab, type, n, new, old, NULL, tmpa);
|
||||
rte_update_unlock();
|
||||
}
|
||||
|
|
@ -1065,7 +1077,7 @@ void
|
|||
rte_discard(rtable *t, rte *old) /* Non-filtered route deletion, used during garbage collection */
|
||||
{
|
||||
rte_update_lock();
|
||||
rte_recalculate(old->sender, old->net, NULL, NULL, old->attrs->proto);
|
||||
rte_recalculate(old->sender, old->net, NULL, NULL, old->attrs->src);
|
||||
rte_update_unlock();
|
||||
}
|
||||
|
||||
|
|
@ -1082,8 +1094,7 @@ rt_examine(rtable *t, ip_addr prefix, int pxlen, struct proto *p, struct filter
|
|||
rte_update_lock();
|
||||
|
||||
/* Rest is stripped down export_filter() */
|
||||
struct proto *src = rt->attrs->proto;
|
||||
ea_list *tmpa = src->make_tmp_attrs ? src->make_tmp_attrs(rt, rte_update_pool) : NULL;
|
||||
ea_list *tmpa = make_tmp_attrs(rt, rte_update_pool);
|
||||
int v = p->import_control ? p->import_control(p, &rt, &tmpa, rte_update_pool) : 0;
|
||||
if (v == RIC_PROCESS)
|
||||
v = (f_run(filter, &rt, &tmpa, rte_update_pool, FF_FORCE_TMPATTR) <= F_ACCEPT);
|
||||
|
|
@ -1110,8 +1121,8 @@ rte_dump(rte *e)
|
|||
debug("%-1I/%2d ", n->n.prefix, n->n.pxlen);
|
||||
debug("KF=%02x PF=%02x pref=%d lm=%d ", n->n.flags, e->pflags, e->pref, now-e->lastmod);
|
||||
rta_dump(e->attrs);
|
||||
if (e->attrs->proto->proto->dump_attrs)
|
||||
e->attrs->proto->proto->dump_attrs(e);
|
||||
if (e->attrs->src->proto->proto->dump_attrs)
|
||||
e->attrs->src->proto->proto->dump_attrs(e);
|
||||
debug("\n");
|
||||
}
|
||||
|
||||
|
|
@ -1232,7 +1243,10 @@ rt_event(void *ptr)
|
|||
rt_next_hop_update(tab);
|
||||
|
||||
if (tab->gc_scheduled)
|
||||
rt_prune_nets(tab);
|
||||
{
|
||||
rt_prune_nets(tab);
|
||||
rt_prune_sources(); // FIXME this should be moved to independent event
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
|
|
@ -1298,7 +1312,7 @@ again:
|
|||
rescan:
|
||||
for (e=n->routes; e; e=e->next)
|
||||
if (e->sender->proto->flushing ||
|
||||
(step && e->attrs->proto->flushing))
|
||||
(step && e->attrs->src->proto->flushing))
|
||||
{
|
||||
if (*max_feed <= 0)
|
||||
{
|
||||
|
|
@ -1308,7 +1322,7 @@ again:
|
|||
|
||||
if (step)
|
||||
log_rl(&rl_flush, L_WARN "Route %I/%d from %s still in %s after flush",
|
||||
n->n.prefix, n->n.pxlen, e->attrs->proto->name, tab->name);
|
||||
n->n.prefix, n->n.pxlen, e->attrs->src->proto->name, tab->name);
|
||||
|
||||
rte_discard(tab, e);
|
||||
(*max_feed)--;
|
||||
|
|
@ -1452,8 +1466,8 @@ rt_next_hop_update_net(rtable *tab, net *n)
|
|||
|
||||
/* Call a pre-comparison hook */
|
||||
/* Not really an efficient way to compute this */
|
||||
if (e->attrs->proto->rte_recalculate)
|
||||
e->attrs->proto->rte_recalculate(tab, n, new, e, NULL);
|
||||
if (e->attrs->src->proto->rte_recalculate)
|
||||
e->attrs->src->proto->rte_recalculate(tab, n, new, e, NULL);
|
||||
|
||||
if (e != old_best)
|
||||
rte_free_quick(e);
|
||||
|
|
@ -1651,11 +1665,10 @@ rt_commit(struct config *new, struct config *old)
|
|||
static inline void
|
||||
do_feed_baby(struct proto *p, int type, struct announce_hook *h, net *n, rte *e)
|
||||
{
|
||||
struct proto *src = e->attrs->proto;
|
||||
ea_list *tmpa;
|
||||
|
||||
rte_update_lock();
|
||||
tmpa = src->make_tmp_attrs ? src->make_tmp_attrs(e, rte_update_pool) : NULL;
|
||||
tmpa = make_tmp_attrs(e, rte_update_pool);
|
||||
if (type == RA_ACCEPTED)
|
||||
rt_notify_accepted(h, n, e, NULL, NULL, tmpa, p->refeeding ? 2 : 1);
|
||||
else
|
||||
|
|
@ -2041,7 +2054,7 @@ rt_update_hostcache(rtable *tab)
|
|||
}
|
||||
|
||||
static struct hostentry *
|
||||
rt_find_hostentry(rtable *tab, ip_addr a, ip_addr ll, rtable *dep)
|
||||
rt_get_hostentry(rtable *tab, ip_addr a, ip_addr ll, rtable *dep)
|
||||
{
|
||||
struct hostentry *he;
|
||||
|
||||
|
|
@ -2062,9 +2075,10 @@ rt_find_hostentry(rtable *tab, ip_addr a, ip_addr ll, rtable *dep)
|
|||
void
|
||||
rta_set_recursive_next_hop(rtable *dep, rta *a, rtable *tab, ip_addr *gw, ip_addr *ll)
|
||||
{
|
||||
rta_apply_hostentry(a, rt_find_hostentry(tab, *gw, *ll, dep));
|
||||
rta_apply_hostentry(a, rt_get_hostentry(tab, *gw, *ll, dep));
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* CLI commands
|
||||
*/
|
||||
|
|
@ -2094,6 +2108,7 @@ rt_show_rte(struct cli *c, byte *ia, rte *e, struct rt_show_data *d, ea_list *tm
|
|||
rta *a = e->attrs;
|
||||
int primary = (e->net->routes == e);
|
||||
int sync_error = (e->net->n.flags & KRF_SYNC_ERROR);
|
||||
void (*get_route_info)(struct rte *, byte *buf, struct ea_list *attrs);
|
||||
struct mpnh *nh;
|
||||
|
||||
rt_format_via(e, via);
|
||||
|
|
@ -2102,7 +2117,9 @@ rt_show_rte(struct cli *c, byte *ia, rte *e, struct rt_show_data *d, ea_list *tm
|
|||
bsprintf(from, " from %I", a->from);
|
||||
else
|
||||
from[0] = 0;
|
||||
if (a->proto->proto->get_route_info || d->verbose)
|
||||
|
||||
get_route_info = a->src->proto->proto->get_route_info;
|
||||
if (get_route_info || d->verbose)
|
||||
{
|
||||
/* Need to normalize the extended attributes */
|
||||
ea_list *t = tmpa;
|
||||
|
|
@ -2111,11 +2128,11 @@ rt_show_rte(struct cli *c, byte *ia, rte *e, struct rt_show_data *d, ea_list *tm
|
|||
ea_merge(t, tmpa);
|
||||
ea_sort(tmpa);
|
||||
}
|
||||
if (a->proto->proto->get_route_info)
|
||||
a->proto->proto->get_route_info(e, info, tmpa);
|
||||
if (get_route_info)
|
||||
get_route_info(e, info, tmpa);
|
||||
else
|
||||
bsprintf(info, " (%d)", e->pref);
|
||||
cli_printf(c, -1007, "%-18s %s [%s %s%s]%s%s", ia, via, a->proto->name,
|
||||
cli_printf(c, -1007, "%-18s %s [%s %s%s]%s%s", ia, via, a->src->proto->name,
|
||||
tm, from, primary ? (sync_error ? " !" : " *") : "", info);
|
||||
for (nh = a->nexthops; nh; nh = nh->next)
|
||||
cli_printf(c, -1007, "\tvia %I on %s weight %d", nh->gw, nh->iface->name, nh->weight + 1);
|
||||
|
|
@ -2139,7 +2156,7 @@ rt_show_net(struct cli *c, net *n, struct rt_show_data *d)
|
|||
continue;
|
||||
|
||||
struct ea_list *tmpa;
|
||||
struct proto *p0 = e->attrs->proto;
|
||||
struct rte_src *src = e->attrs->src;
|
||||
struct proto *p1 = d->export_protocol;
|
||||
struct proto *p2 = d->show_protocol;
|
||||
|
||||
|
|
@ -2148,9 +2165,9 @@ rt_show_net(struct cli *c, net *n, struct rt_show_data *d)
|
|||
d->rt_counter++;
|
||||
ee = e;
|
||||
rte_update_lock(); /* We use the update buffer for filtering */
|
||||
tmpa = p0->make_tmp_attrs ? p0->make_tmp_attrs(e, rte_update_pool) : NULL;
|
||||
tmpa = make_tmp_attrs(e, rte_update_pool);
|
||||
ok = f_run(d->filter, &e, &tmpa, rte_update_pool, FF_FORCE_TMPATTR) <= F_ACCEPT;
|
||||
if (p2 && p2 != p0) ok = 0;
|
||||
if (p2 && p2 != src->proto) ok = 0;
|
||||
if (ok && d->export_mode)
|
||||
{
|
||||
int ic;
|
||||
|
|
|
|||
|
|
@ -621,12 +621,14 @@ bgp_encode_attrs(struct bgp_proto *p, byte *w, ea_list *attrs, int remains)
|
|||
return -1;
|
||||
}
|
||||
|
||||
/*
|
||||
static void
|
||||
bgp_init_prefix(struct fib_node *N)
|
||||
{
|
||||
struct bgp_prefix *p = (struct bgp_prefix *) N;
|
||||
p->bucket_node.next = NULL;
|
||||
}
|
||||
*/
|
||||
|
||||
static int
|
||||
bgp_compare_u32(const u32 *x, const u32 *y)
|
||||
|
|
@ -870,30 +872,125 @@ bgp_free_bucket(struct bgp_proto *p, struct bgp_bucket *buck)
|
|||
mb_free(buck);
|
||||
}
|
||||
|
||||
|
||||
/* Prefix hash table */
|
||||
|
||||
static inline u32 prefix_hash(ip_addr prefix, int pxlen, u32 path_id, u32 order)
|
||||
{
|
||||
u32 x = ipa_hash(prefix) + pxlen + path_id;
|
||||
return (x * 2902958171u) >> (32 - order);
|
||||
}
|
||||
|
||||
static inline u32 px_hash_size(struct bgp_proto *p)
|
||||
{ return 1 << p->px_hash_order; }
|
||||
|
||||
void
|
||||
bgp_init_prefix_table(struct bgp_proto *p, u32 order)
|
||||
{
|
||||
p->px_hash_count = 0;
|
||||
p->px_hash_order = order;
|
||||
p->prefix_table = mb_allocz(p->p.pool, px_hash_size(p) * sizeof(struct bgp_prefix *));
|
||||
p->prefix_slab = sl_new(p->p.pool, sizeof(struct bgp_prefix));
|
||||
}
|
||||
|
||||
static void
|
||||
bgp_rehash_prefix_table(struct bgp_proto *p, int step)
|
||||
{
|
||||
struct bgp_prefix **old_tab, *px, *px_next;
|
||||
u32 old_size, hash, i;
|
||||
|
||||
old_tab = p->prefix_table;
|
||||
old_size = px_hash_size(p);
|
||||
|
||||
p->px_hash_order += step;
|
||||
p->prefix_table = mb_allocz(p->p.pool, px_hash_size(p) * sizeof(struct bgp_prefix *));
|
||||
|
||||
for (i = 0; i < old_size; i++)
|
||||
for (px = old_tab[i]; px; px = px_next)
|
||||
{
|
||||
px_next = px->next;
|
||||
hash = prefix_hash(px->n.prefix, px->n.pxlen, px->path_id, p->px_hash_order);
|
||||
px->next = p->prefix_table[hash];
|
||||
p->prefix_table[hash] = px;
|
||||
}
|
||||
|
||||
mb_free(old_tab);
|
||||
}
|
||||
|
||||
static struct bgp_prefix *
|
||||
bgp_get_prefix(struct bgp_proto *p, ip_addr prefix, int pxlen, u32 path_id)
|
||||
{
|
||||
struct bgp_prefix *bp;
|
||||
u32 hash = prefix_hash(prefix, pxlen, path_id, p->px_hash_order);
|
||||
|
||||
for (bp = p->prefix_table[hash]; bp; bp = bp->next)
|
||||
if (bp->n.pxlen == pxlen && ipa_equal(bp->n.prefix, prefix) && bp->path_id == path_id)
|
||||
return bp;
|
||||
|
||||
bp = sl_alloc(p->prefix_slab);
|
||||
bp->n.prefix = prefix;
|
||||
bp->n.pxlen = pxlen;
|
||||
bp->path_id = path_id;
|
||||
bp->next = p->prefix_table[hash];
|
||||
p->prefix_table[hash] = bp;
|
||||
|
||||
bp->bucket_node.next = NULL;
|
||||
|
||||
p->px_hash_count++;
|
||||
if ((p->px_hash_count > px_hash_size(p)) && (p->px_hash_order < 18))
|
||||
bgp_rehash_prefix_table(p, 1);
|
||||
|
||||
return bp;
|
||||
}
|
||||
|
||||
void
|
||||
bgp_free_prefix(struct bgp_proto *p, struct bgp_prefix *bp)
|
||||
{
|
||||
struct bgp_prefix **bpp;
|
||||
u32 hash = prefix_hash(bp->n.prefix, bp->n.pxlen, bp->path_id, p->px_hash_order);
|
||||
|
||||
for (bpp = &p->prefix_table[hash]; *bpp; *bpp = (*bpp)->next)
|
||||
if (*bpp == bp)
|
||||
break;
|
||||
|
||||
*bpp = bp->next;
|
||||
sl_free(p->prefix_slab, bp);
|
||||
|
||||
p->px_hash_count--;
|
||||
if ((p->px_hash_count < (px_hash_size(p) / 4)) && (p->px_hash_order > 10))
|
||||
bgp_rehash_prefix_table(p, -1);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
bgp_rt_notify(struct proto *P, rtable *tbl UNUSED, net *n, rte *new, rte *old UNUSED, ea_list *attrs)
|
||||
{
|
||||
struct bgp_proto *p = (struct bgp_proto *) P;
|
||||
struct bgp_bucket *buck;
|
||||
struct bgp_prefix *px;
|
||||
rte *key;
|
||||
u32 path_id;
|
||||
|
||||
DBG("BGP: Got route %I/%d %s\n", n->n.prefix, n->n.pxlen, new ? "up" : "down");
|
||||
|
||||
if (new)
|
||||
{
|
||||
key = new;
|
||||
buck = bgp_get_bucket(p, n, attrs, new->attrs->source != RTS_BGP);
|
||||
if (!buck) /* Inconsistent attribute list */
|
||||
return;
|
||||
}
|
||||
else
|
||||
{
|
||||
key = old;
|
||||
if (!(buck = p->withdraw_bucket))
|
||||
{
|
||||
buck = p->withdraw_bucket = mb_alloc(P->pool, sizeof(struct bgp_bucket));
|
||||
init_list(&buck->prefixes);
|
||||
}
|
||||
}
|
||||
px = fib_get(&p->prefix_fib, &n->n.prefix, n->n.pxlen);
|
||||
path_id = p->add_path_tx ? key->attrs->src->global_id : 0;
|
||||
px = bgp_get_prefix(p, n->n.prefix, n->n.pxlen, path_id);
|
||||
if (px->bucket_node.next)
|
||||
{
|
||||
DBG("\tRemoving old entry.\n");
|
||||
|
|
@ -1026,7 +1123,7 @@ bgp_update_attrs(struct bgp_proto *p, rte *e, ea_list **attrs, struct linpool *p
|
|||
if (rr)
|
||||
{
|
||||
/* Handling route reflection, RFC 4456 */
|
||||
struct bgp_proto *src = (struct bgp_proto *) e->attrs->proto;
|
||||
struct bgp_proto *src = (struct bgp_proto *) e->attrs->src->proto;
|
||||
|
||||
a = ea_find(e->attrs->eattrs, EA_CODE(EAP_BGP, BA_ORIGINATOR_ID));
|
||||
if (!a)
|
||||
|
|
@ -1076,7 +1173,8 @@ bgp_import_control(struct proto *P, rte **new, ea_list **attrs, struct linpool *
|
|||
{
|
||||
rte *e = *new;
|
||||
struct bgp_proto *p = (struct bgp_proto *) P;
|
||||
struct bgp_proto *new_bgp = (e->attrs->proto->proto == &proto_bgp) ? (struct bgp_proto *) e->attrs->proto : NULL;
|
||||
struct bgp_proto *new_bgp = (e->attrs->src->proto->proto == &proto_bgp) ?
|
||||
(struct bgp_proto *) e->attrs->src->proto : NULL;
|
||||
|
||||
if (p == new_bgp) /* Poison reverse updates */
|
||||
return -1;
|
||||
|
|
@ -1115,7 +1213,7 @@ bgp_get_neighbor(rte *r)
|
|||
if (e && as_path_get_first(e->u.ptr, &as))
|
||||
return as;
|
||||
else
|
||||
return ((struct bgp_proto *) r->attrs->proto)->remote_as;
|
||||
return ((struct bgp_proto *) r->attrs->src->proto)->remote_as;
|
||||
}
|
||||
|
||||
static inline int
|
||||
|
|
@ -1128,8 +1226,8 @@ rte_resolvable(rte *rt)
|
|||
int
|
||||
bgp_rte_better(rte *new, rte *old)
|
||||
{
|
||||
struct bgp_proto *new_bgp = (struct bgp_proto *) new->attrs->proto;
|
||||
struct bgp_proto *old_bgp = (struct bgp_proto *) old->attrs->proto;
|
||||
struct bgp_proto *new_bgp = (struct bgp_proto *) new->attrs->src->proto;
|
||||
struct bgp_proto *old_bgp = (struct bgp_proto *) old->attrs->src->proto;
|
||||
eattr *x, *y;
|
||||
u32 n, o;
|
||||
|
||||
|
|
@ -1263,7 +1361,7 @@ same_group(rte *r, u32 lpref, u32 lasn)
|
|||
static inline int
|
||||
use_deterministic_med(rte *r)
|
||||
{
|
||||
struct proto *P = r->attrs->proto;
|
||||
struct proto *P = r->attrs->src->proto;
|
||||
return (P->proto == &proto_bgp) && ((struct bgp_proto *) P)->cf->deterministic_med;
|
||||
}
|
||||
|
||||
|
|
@ -1548,7 +1646,6 @@ bgp_decode_attrs(struct bgp_conn *conn, byte *attr, unsigned int len, struct lin
|
|||
int withdraw = 0;
|
||||
|
||||
bzero(a, sizeof(rta));
|
||||
a->proto = &bgp->p;
|
||||
a->source = RTS_BGP;
|
||||
a->scope = SCOPE_UNIVERSE;
|
||||
a->cast = RTC_UNICAST;
|
||||
|
|
@ -1757,14 +1854,14 @@ bgp_get_attr(eattr *a, byte *buf, int buflen)
|
|||
}
|
||||
|
||||
void
|
||||
bgp_attr_init(struct bgp_proto *p)
|
||||
bgp_init_bucket_table(struct bgp_proto *p)
|
||||
{
|
||||
p->hash_size = 256;
|
||||
p->hash_limit = p->hash_size * 4;
|
||||
p->bucket_hash = mb_allocz(p->p.pool, p->hash_size * sizeof(struct bgp_bucket *));
|
||||
init_list(&p->bucket_queue);
|
||||
p->withdraw_bucket = NULL;
|
||||
fib_init(&p->prefix_fib, p->p.pool, sizeof(struct bgp_prefix), 0, bgp_init_prefix);
|
||||
// fib_init(&p->prefix_fib, p->p.pool, sizeof(struct bgp_prefix), 0, bgp_init_prefix);
|
||||
}
|
||||
|
||||
void
|
||||
|
|
|
|||
|
|
@ -367,7 +367,9 @@ bgp_conn_enter_established_state(struct bgp_conn *conn)
|
|||
p->conn = conn;
|
||||
p->last_error_class = 0;
|
||||
p->last_error_code = 0;
|
||||
bgp_attr_init(conn->bgp);
|
||||
bgp_init_bucket_table(p);
|
||||
bgp_init_prefix_table(p, 8);
|
||||
|
||||
bgp_conn_set_state(conn, BS_ESTABLISHED);
|
||||
proto_notify_state(&p->p, PS_UP);
|
||||
}
|
||||
|
|
@ -417,8 +419,11 @@ static void
|
|||
bgp_send_open(struct bgp_conn *conn)
|
||||
{
|
||||
conn->start_state = conn->bgp->start_state;
|
||||
conn->want_as4_support = conn->bgp->cf->enable_as4 && (conn->start_state != BSS_CONNECT_NOCAP);
|
||||
conn->peer_as4_support = 0; // Default value, possibly changed by receiving capability.
|
||||
|
||||
// Default values, possibly changed by receiving capabilities.
|
||||
conn->peer_refresh_support = 0;
|
||||
conn->peer_as4_support = 0;
|
||||
conn->peer_add_path = 0;
|
||||
conn->advertised_as = 0;
|
||||
|
||||
DBG("BGP: Sending open\n");
|
||||
|
|
@ -970,19 +975,17 @@ get_igp_table(struct bgp_config *cf)
|
|||
static struct proto *
|
||||
bgp_init(struct proto_config *C)
|
||||
{
|
||||
struct bgp_config *c = (struct bgp_config *) C;
|
||||
struct proto *P = proto_new(C, sizeof(struct bgp_proto));
|
||||
struct bgp_config *c = (struct bgp_config *) C;
|
||||
struct bgp_proto *p = (struct bgp_proto *) P;
|
||||
|
||||
P->accept_ra_types = c->secondary ? RA_ACCEPTED : RA_OPTIMAL;
|
||||
P->rt_notify = bgp_rt_notify;
|
||||
P->rte_better = bgp_rte_better;
|
||||
P->import_control = bgp_import_control;
|
||||
P->neigh_notify = bgp_neigh_notify;
|
||||
P->reload_routes = bgp_reload_routes;
|
||||
|
||||
if (c->deterministic_med)
|
||||
P->rte_recalculate = bgp_rte_recalculate;
|
||||
P->rte_better = bgp_rte_better;
|
||||
P->rte_recalculate = c->deterministic_med ? bgp_rte_recalculate : NULL;
|
||||
|
||||
p->cf = c;
|
||||
p->local_as = c->local_as;
|
||||
|
|
@ -1238,15 +1241,19 @@ bgp_show_proto_info(struct proto *P)
|
|||
else if (P->proto_state == PS_UP)
|
||||
{
|
||||
cli_msg(-1006, " Neighbor ID: %R", p->remote_id);
|
||||
cli_msg(-1006, " Neighbor caps: %s%s",
|
||||
cli_msg(-1006, " Neighbor caps: %s%s%s%s",
|
||||
c->peer_refresh_support ? " refresh" : "",
|
||||
c->peer_as4_support ? " AS4" : "");
|
||||
cli_msg(-1006, " Session: %s%s%s%s%s",
|
||||
c->peer_as4_support ? " AS4" : "",
|
||||
(c->peer_add_path & ADD_PATH_RX) ? " add-path-rx" : "",
|
||||
(c->peer_add_path & ADD_PATH_TX) ? " add-path-tx" : "");
|
||||
cli_msg(-1006, " Session: %s%s%s%s%s%s%s",
|
||||
p->is_internal ? "internal" : "external",
|
||||
p->cf->multihop ? " multihop" : "",
|
||||
p->rr_client ? " route-reflector" : "",
|
||||
p->rs_client ? " route-server" : "",
|
||||
p->as4_session ? " AS4" : "");
|
||||
p->as4_session ? " AS4" : "",
|
||||
p->add_path_rx ? " add-path-rx" : "",
|
||||
p->add_path_tx ? " add-path-tx" : "");
|
||||
cli_msg(-1006, " Source address: %I", p->source_addr);
|
||||
if (P->cf->in_limit)
|
||||
cli_msg(-1006, " Route limit: %d/%d",
|
||||
|
|
|
|||
|
|
@ -45,6 +45,7 @@ struct bgp_config {
|
|||
int passive; /* Do not initiate outgoing connection */
|
||||
int interpret_communities; /* Hardwired handling of well-known communities */
|
||||
int secondary; /* Accept also non-best routes (i.e. RA_ACCEPTED) */
|
||||
int add_path; /* Use ADD-PATH extension [draft] */
|
||||
int allow_local_as; /* Allow that number of local ASNs in incoming AS_PATHs */
|
||||
unsigned connect_retry_time;
|
||||
unsigned hold_time, initial_hold_time;
|
||||
|
|
@ -67,6 +68,11 @@ struct bgp_config {
|
|||
#define GW_DIRECT 1
|
||||
#define GW_RECURSIVE 2
|
||||
|
||||
#define ADD_PATH_RX 1
|
||||
#define ADD_PATH_TX 2
|
||||
#define ADD_PATH_FULL 3
|
||||
|
||||
|
||||
struct bgp_conn {
|
||||
struct bgp_proto *bgp;
|
||||
struct birdsock *sk;
|
||||
|
|
@ -80,9 +86,9 @@ struct bgp_conn {
|
|||
byte *notify_data;
|
||||
u32 advertised_as; /* Temporary value for AS number received */
|
||||
int start_state; /* protocol start_state snapshot when connection established */
|
||||
int want_as4_support; /* Connection tries to establish AS4 session */
|
||||
int peer_as4_support; /* Peer supports 4B AS numbers [RFC4893] */
|
||||
int peer_refresh_support; /* Peer supports route refresh [RFC2918] */
|
||||
u8 peer_refresh_support; /* Peer supports route refresh [RFC2918] */
|
||||
u8 peer_as4_support; /* Peer supports 4B AS numbers [RFC4893] */
|
||||
u8 peer_add_path; /* Peer supports ADD-PATH [draft] */
|
||||
unsigned hold_time, keepalive_time; /* Times calculated from my and neighbor's requirements */
|
||||
};
|
||||
|
||||
|
|
@ -91,8 +97,10 @@ struct bgp_proto {
|
|||
struct bgp_config *cf; /* Shortcut to BGP configuration */
|
||||
u32 local_as, remote_as;
|
||||
int start_state; /* Substates that partitions BS_START */
|
||||
int is_internal; /* Internal BGP connection (local_as == remote_as) */
|
||||
int as4_session; /* Session uses 4B AS numbers in AS_PATH (both sides support it) */
|
||||
u8 is_internal; /* Internal BGP connection (local_as == remote_as) */
|
||||
u8 as4_session; /* Session uses 4B AS numbers in AS_PATH (both sides support it) */
|
||||
u8 add_path_rx; /* Session expects receive of ADD-PATH extended NLRI */
|
||||
u8 add_path_tx; /* Session expects transmit of ADD-PATH extended NLRI */
|
||||
u32 local_id; /* BGP identifier of this router */
|
||||
u32 remote_id; /* BGP identifier of the neighbor */
|
||||
u32 rr_cluster_id; /* Route reflector cluster ID */
|
||||
|
|
@ -110,7 +118,10 @@ struct bgp_proto {
|
|||
struct timer *startup_timer; /* Timer used to delay protocol startup due to previous errors (startup_delay) */
|
||||
struct bgp_bucket **bucket_hash; /* Hash table of attribute buckets */
|
||||
unsigned int hash_size, hash_count, hash_limit;
|
||||
struct fib prefix_fib; /* Prefixes to be sent */
|
||||
// struct fib prefix_fib; /* Prefixes to be sent */
|
||||
struct bgp_prefix **prefix_table; /* Prefixes to be sent */
|
||||
slab *prefix_slab; /* Slab holding prefix nodes */
|
||||
u32 px_hash_order, px_hash_count;
|
||||
list bucket_queue; /* Queue of buckets to send */
|
||||
struct bgp_bucket *withdraw_bucket; /* Withdrawn routes */
|
||||
unsigned startup_delay; /* Time to delay protocol startup by due to errors */
|
||||
|
|
@ -126,7 +137,12 @@ struct bgp_proto {
|
|||
};
|
||||
|
||||
struct bgp_prefix {
|
||||
struct fib_node n; /* Node in prefix fib */
|
||||
struct {
|
||||
ip_addr prefix;
|
||||
int pxlen;
|
||||
} n;
|
||||
u32 path_id;
|
||||
struct bgp_prefix *next;
|
||||
node bucket_node; /* Node in per-bucket list */
|
||||
};
|
||||
|
||||
|
|
@ -160,6 +176,9 @@ void bgp_conn_enter_idle_state(struct bgp_conn *conn);
|
|||
void bgp_store_error(struct bgp_proto *p, struct bgp_conn *c, u8 class, u32 code);
|
||||
void bgp_stop(struct bgp_proto *p, unsigned subcode);
|
||||
|
||||
struct rte_source *bgp_find_source(struct bgp_proto *p, u32 path_id);
|
||||
struct rte_source *bgp_get_source(struct bgp_proto *p, u32 path_id);
|
||||
|
||||
|
||||
|
||||
#ifdef LOCAL_DEBUG
|
||||
|
|
@ -195,9 +214,11 @@ int bgp_rte_better(struct rte *, struct rte *);
|
|||
int bgp_rte_recalculate(rtable *table, net *net, rte *new, rte *old, rte *old_best);
|
||||
void bgp_rt_notify(struct proto *P, rtable *tbl UNUSED, net *n, rte *new, rte *old UNUSED, ea_list *attrs);
|
||||
int bgp_import_control(struct proto *, struct rte **, struct ea_list **, struct linpool *);
|
||||
void bgp_attr_init(struct bgp_proto *);
|
||||
unsigned int bgp_encode_attrs(struct bgp_proto *p, byte *w, ea_list *attrs, int remains);
|
||||
void bgp_init_bucket_table(struct bgp_proto *);
|
||||
void bgp_free_bucket(struct bgp_proto *p, struct bgp_bucket *buck);
|
||||
void bgp_init_prefix_table(struct bgp_proto *p, u32 order);
|
||||
void bgp_free_prefix(struct bgp_proto *p, struct bgp_prefix *bp);
|
||||
unsigned int bgp_encode_attrs(struct bgp_proto *p, byte *w, ea_list *attrs, int remains);
|
||||
void bgp_get_route_info(struct rte *, byte *buf, struct ea_list *attrs);
|
||||
|
||||
inline static void bgp_attach_attr_ip(struct ea_list **to, struct linpool *pool, unsigned attr, ip_addr a)
|
||||
|
|
|
|||
|
|
@ -26,7 +26,7 @@ CF_KEYWORDS(BGP, LOCAL, NEIGHBOR, AS, HOLD, TIME, CONNECT, RETRY,
|
|||
PREFER, OLDER, MISSING, LLADDR, DROP, IGNORE, ROUTE, REFRESH,
|
||||
INTERPRET, COMMUNITIES, BGP_ORIGINATOR_ID, BGP_CLUSTER_LIST, IGP,
|
||||
TABLE, GATEWAY, DIRECT, RECURSIVE, MED, TTL, SECURITY, DETERMINISTIC,
|
||||
SECONDARY, ALLOW, BFD)
|
||||
SECONDARY, ALLOW, BFD, ADD, PATHS, RX, TX)
|
||||
|
||||
CF_GRAMMAR
|
||||
|
||||
|
|
@ -110,6 +110,9 @@ bgp_proto:
|
|||
| bgp_proto PASSIVE bool ';' { BGP_CFG->passive = $3; }
|
||||
| bgp_proto INTERPRET COMMUNITIES bool ';' { BGP_CFG->interpret_communities = $4; }
|
||||
| bgp_proto SECONDARY bool ';' { BGP_CFG->secondary = $3; }
|
||||
| bgp_proto ADD PATHS RX ';' { BGP_CFG->add_path = ADD_PATH_RX; }
|
||||
| bgp_proto ADD PATHS TX ';' { BGP_CFG->add_path = ADD_PATH_TX; }
|
||||
| bgp_proto ADD PATHS bool ';' { BGP_CFG->add_path = $4 ? ADD_PATH_FULL : 0; }
|
||||
| bgp_proto ALLOW LOCAL AS ';' { BGP_CFG->allow_local_as = -1; }
|
||||
| bgp_proto ALLOW LOCAL AS expr ';' { BGP_CFG->allow_local_as = $5; }
|
||||
| bgp_proto IGP TABLE rtable ';' { BGP_CFG->igp_table = $4; }
|
||||
|
|
|
|||
|
|
@ -165,6 +165,21 @@ bgp_put_cap_as4(struct bgp_conn *conn, byte *buf)
|
|||
return buf + 4;
|
||||
}
|
||||
|
||||
static byte *
|
||||
bgp_put_cap_add_path(struct bgp_conn *conn, byte *buf)
|
||||
{
|
||||
*buf++ = 69; /* Capability 69: Support for ADD-PATH */
|
||||
*buf++ = 4; /* Capability data length */
|
||||
|
||||
*buf++ = 0; /* Appropriate AF */
|
||||
*buf++ = BGP_AF;
|
||||
*buf++ = 1; /* SAFI 1 */
|
||||
|
||||
*buf++ = conn->bgp->cf->add_path;
|
||||
|
||||
return buf;
|
||||
}
|
||||
|
||||
static byte *
|
||||
bgp_create_open(struct bgp_conn *conn, byte *buf)
|
||||
{
|
||||
|
|
@ -201,9 +216,12 @@ bgp_create_open(struct bgp_conn *conn, byte *buf)
|
|||
if (p->cf->enable_refresh)
|
||||
cap = bgp_put_cap_rr(conn, cap);
|
||||
|
||||
if (conn->want_as4_support)
|
||||
if (p->cf->enable_as4)
|
||||
cap = bgp_put_cap_as4(conn, cap);
|
||||
|
||||
if (p->cf->add_path)
|
||||
cap = bgp_put_cap_add_path(conn, cap);
|
||||
|
||||
cap_len = cap - buf - 12;
|
||||
if (cap_len > 0)
|
||||
{
|
||||
|
|
@ -230,6 +248,13 @@ bgp_encode_prefixes(struct bgp_proto *p, byte *w, struct bgp_bucket *buck, unsig
|
|||
{
|
||||
struct bgp_prefix *px = SKIP_BACK(struct bgp_prefix, bucket_node, HEAD(buck->prefixes));
|
||||
DBG("\tDequeued route %I/%d\n", px->n.prefix, px->n.pxlen);
|
||||
|
||||
if (p->add_path_tx)
|
||||
{
|
||||
put_u32(w, px->path_id);
|
||||
w += 4;
|
||||
}
|
||||
|
||||
*w++ = px->n.pxlen;
|
||||
bytes = (px->n.pxlen + 7) / 8;
|
||||
a = px->n.prefix;
|
||||
|
|
@ -238,7 +263,8 @@ bgp_encode_prefixes(struct bgp_proto *p, byte *w, struct bgp_bucket *buck, unsig
|
|||
w += bytes;
|
||||
remains -= bytes + 1;
|
||||
rem_node(&px->bucket_node);
|
||||
fib_delete(&p->prefix_fib, px);
|
||||
bgp_free_prefix(p, px);
|
||||
// fib_delete(&p->prefix_fib, px);
|
||||
}
|
||||
return w - start;
|
||||
}
|
||||
|
|
@ -251,7 +277,8 @@ bgp_flush_prefixes(struct bgp_proto *p, struct bgp_bucket *buck)
|
|||
struct bgp_prefix *px = SKIP_BACK(struct bgp_prefix, bucket_node, HEAD(buck->prefixes));
|
||||
log(L_ERR "%s: - route %I/%d skipped", p->p.name, px->n.prefix, px->n.pxlen);
|
||||
rem_node(&px->bucket_node);
|
||||
fib_delete(&p->prefix_fib, px);
|
||||
bgp_free_prefix(p, px);
|
||||
// fib_delete(&p->prefix_fib, px);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -633,7 +660,7 @@ void
|
|||
bgp_parse_capabilities(struct bgp_conn *conn, byte *opt, int len)
|
||||
{
|
||||
// struct bgp_proto *p = conn->bgp;
|
||||
int cl;
|
||||
int i, cl;
|
||||
|
||||
while (len > 0)
|
||||
{
|
||||
|
|
@ -650,14 +677,25 @@ bgp_parse_capabilities(struct bgp_conn *conn, byte *opt, int len)
|
|||
conn->peer_refresh_support = 1;
|
||||
break;
|
||||
|
||||
case 65: /* AS4 capability, RFC 4893 */
|
||||
case 65: /* AS4 capability, RFC 4893 */
|
||||
if (cl != 4)
|
||||
goto err;
|
||||
conn->peer_as4_support = 1;
|
||||
if (conn->want_as4_support)
|
||||
if (conn->bgp->cf->enable_as4)
|
||||
conn->advertised_as = get_u32(opt + 2);
|
||||
break;
|
||||
|
||||
case 69: /* ADD-PATH capability, draft */
|
||||
if (cl % 4)
|
||||
goto err;
|
||||
for (i = 0; i < cl; i += 4)
|
||||
if (opt[2+i+0] == 0 && opt[2+i+1] == BGP_AF && opt[2+i+2] == 1) /* Match AFI/SAFI */
|
||||
conn->peer_add_path = opt[2+i+3];
|
||||
if (conn->peer_add_path > ADD_PATH_FULL)
|
||||
goto err;
|
||||
|
||||
break;
|
||||
|
||||
/* We can safely ignore all other capabilities */
|
||||
}
|
||||
len -= 2 + cl;
|
||||
|
|
@ -796,7 +834,12 @@ bgp_rx_open(struct bgp_conn *conn, byte *pkt, int len)
|
|||
conn->hold_time = MIN(hold, p->cf->hold_time);
|
||||
conn->keepalive_time = p->cf->keepalive_time ? : conn->hold_time / 3;
|
||||
p->remote_id = id;
|
||||
p->as4_session = conn->want_as4_support && conn->peer_as4_support;
|
||||
p->as4_session = p->cf->enable_as4 && conn->peer_as4_support;
|
||||
p->add_path_rx = (p->cf->add_path & ADD_PATH_RX) && (conn->peer_add_path & ADD_PATH_TX);
|
||||
p->add_path_tx = (p->cf->add_path & ADD_PATH_TX) && (conn->peer_add_path & ADD_PATH_RX);
|
||||
|
||||
if (p->add_path_tx)
|
||||
p->p.accept_ra_types = RA_ANY;
|
||||
|
||||
DBG("BGP: Hold timer set to %d, keepalive to %d, AS to %d, ID to %x, AS4 session to %d\n", conn->hold_time, conn->keepalive_time, p->remote_as, p->remote_id, p->as4_session);
|
||||
|
||||
|
|
@ -806,6 +849,13 @@ bgp_rx_open(struct bgp_conn *conn, byte *pkt, int len)
|
|||
}
|
||||
|
||||
#define DECODE_PREFIX(pp, ll) do { \
|
||||
if (p->add_path_rx) \
|
||||
{ \
|
||||
if (ll < 5) { err=1; goto done; } \
|
||||
path_id = get_u32(pp); \
|
||||
pp += 4; \
|
||||
ll -= 4; \
|
||||
} \
|
||||
int b = *pp++; \
|
||||
int q; \
|
||||
ll--; \
|
||||
|
|
@ -820,6 +870,53 @@ bgp_rx_open(struct bgp_conn *conn, byte *pkt, int len)
|
|||
pxlen = b; \
|
||||
} while (0)
|
||||
|
||||
|
||||
static inline void
|
||||
bgp_rte_update(struct bgp_proto *p, ip_addr prefix, int pxlen,
|
||||
u32 path_id, u32 *last_id, struct rte_src **src,
|
||||
rta *a0, rta **a)
|
||||
{
|
||||
if (path_id != *last_id)
|
||||
{
|
||||
*src = rt_get_source(&p->p, path_id);
|
||||
*last_id = path_id;
|
||||
|
||||
if (*a)
|
||||
{
|
||||
rta_free(*a);
|
||||
*a = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
/* Prepare cached route attributes */
|
||||
if (!*a)
|
||||
{
|
||||
a0->src = *src;
|
||||
*a = rta_lookup(a0);
|
||||
}
|
||||
|
||||
net *n = net_get(p->p.table, prefix, pxlen);
|
||||
rte *e = rte_get_temp(rta_clone(*a));
|
||||
e->net = n;
|
||||
e->pflags = 0;
|
||||
e->u.bgp.suppressed = 0;
|
||||
rte_update2(p->p.main_ahook, n, e, *src);
|
||||
}
|
||||
|
||||
static inline void
|
||||
bgp_rte_withdraw(struct bgp_proto *p, ip_addr prefix, int pxlen,
|
||||
u32 path_id, u32 *last_id, struct rte_src **src)
|
||||
{
|
||||
if (path_id != *last_id)
|
||||
{
|
||||
*src = rt_find_source(&p->p, path_id);
|
||||
*last_id = path_id;
|
||||
}
|
||||
|
||||
net *n = net_find(p->p.table, prefix, pxlen);
|
||||
rte_update2( p->p.main_ahook, n, NULL, *src);
|
||||
}
|
||||
|
||||
static inline int
|
||||
bgp_set_next_hop(struct bgp_proto *p, rta *a)
|
||||
{
|
||||
|
|
@ -878,18 +975,20 @@ bgp_do_rx_update(struct bgp_conn *conn,
|
|||
byte *attrs, int attr_len)
|
||||
{
|
||||
struct bgp_proto *p = conn->bgp;
|
||||
net *n;
|
||||
rta *a0, *a = NULL;
|
||||
struct rte_src *src = p->p.main_source;
|
||||
rta *a0, *a;
|
||||
ip_addr prefix;
|
||||
int pxlen, err = 0;
|
||||
u32 path_id = 0;
|
||||
u32 last_id = 0;
|
||||
|
||||
/* Withdraw routes */
|
||||
while (withdrawn_len)
|
||||
{
|
||||
DECODE_PREFIX(withdrawn, withdrawn_len);
|
||||
DBG("Withdraw %I/%d\n", prefix, pxlen);
|
||||
if (n = net_find(p->p.table, prefix, pxlen))
|
||||
rte_update(p->p.table, n, &p->p, &p->p, NULL);
|
||||
|
||||
bgp_rte_withdraw(p, prefix, pxlen, path_id, &last_id, &src);
|
||||
}
|
||||
|
||||
if (!attr_len && !nlri_len) /* shortcut */
|
||||
|
|
@ -900,28 +999,22 @@ bgp_do_rx_update(struct bgp_conn *conn,
|
|||
if (conn->state != BS_ESTABLISHED) /* fatal error during decoding */
|
||||
return;
|
||||
|
||||
if (a0 && nlri_len && bgp_set_next_hop(p, a0))
|
||||
a = rta_lookup(a0);
|
||||
if (a0 && ! bgp_set_next_hop(p, a0))
|
||||
a0 = NULL;
|
||||
|
||||
a = NULL;
|
||||
last_id = 0;
|
||||
src = p->p.main_source;
|
||||
|
||||
while (nlri_len)
|
||||
{
|
||||
DECODE_PREFIX(nlri, nlri_len);
|
||||
DBG("Add %I/%d\n", prefix, pxlen);
|
||||
|
||||
if (a)
|
||||
{
|
||||
rte *e = rte_get_temp(rta_clone(a));
|
||||
e->net = net_get(p->p.table, prefix, pxlen);
|
||||
e->pflags = 0;
|
||||
e->u.bgp.suppressed = 0;
|
||||
rte_update(p->p.table, e->net, &p->p, &p->p, e);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Forced withdraw as a result of soft error */
|
||||
if (n = net_find(p->p.table, prefix, pxlen))
|
||||
rte_update(p->p.table, n, &p->p, &p->p, NULL);
|
||||
}
|
||||
if (a0)
|
||||
bgp_rte_update(p, prefix, pxlen, path_id, &last_id, &src, a0, &a);
|
||||
else /* Forced withdraw as a result of soft error */
|
||||
bgp_rte_withdraw(p, prefix, pxlen, path_id, &last_id, &src);
|
||||
}
|
||||
|
||||
done:
|
||||
|
|
@ -977,13 +1070,15 @@ bgp_do_rx_update(struct bgp_conn *conn,
|
|||
byte *attrs, int attr_len)
|
||||
{
|
||||
struct bgp_proto *p = conn->bgp;
|
||||
struct rte_src *src = p->p.main_source;
|
||||
byte *start, *x;
|
||||
int len, len0;
|
||||
unsigned af, sub;
|
||||
net *n;
|
||||
rta *a0, *a = NULL;
|
||||
rta *a0, *a;
|
||||
ip_addr prefix;
|
||||
int pxlen, err = 0;
|
||||
u32 path_id = 0;
|
||||
u32 last_id = 0;
|
||||
|
||||
p->mp_reach_len = 0;
|
||||
p->mp_unreach_len = 0;
|
||||
|
|
@ -998,8 +1093,7 @@ bgp_do_rx_update(struct bgp_conn *conn,
|
|||
{
|
||||
DECODE_PREFIX(x, len);
|
||||
DBG("Withdraw %I/%d\n", prefix, pxlen);
|
||||
if (n = net_find(p->p.table, prefix, pxlen))
|
||||
rte_update(p->p.table, n, &p->p, &p->p, NULL);
|
||||
bgp_rte_withdraw(p, prefix, pxlen, path_id, &last_id, &src);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -1016,28 +1110,22 @@ bgp_do_rx_update(struct bgp_conn *conn,
|
|||
len -= *x + 2;
|
||||
x += *x + 2;
|
||||
|
||||
if (a0 && bgp_set_next_hop(p, a0))
|
||||
a = rta_lookup(a0);
|
||||
if (a0 && ! bgp_set_next_hop(p, a0))
|
||||
a0 = NULL;
|
||||
|
||||
a = NULL;
|
||||
last_id = 0;
|
||||
src = p->p.main_source;
|
||||
|
||||
while (len)
|
||||
{
|
||||
DECODE_PREFIX(x, len);
|
||||
DBG("Add %I/%d\n", prefix, pxlen);
|
||||
|
||||
if (a)
|
||||
{
|
||||
rte *e = rte_get_temp(rta_clone(a));
|
||||
e->net = net_get(p->p.table, prefix, pxlen);
|
||||
e->pflags = 0;
|
||||
e->u.bgp.suppressed = 0;
|
||||
rte_update(p->p.table, e->net, &p->p, &p->p, e);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Forced withdraw as a result of soft error */
|
||||
if (n = net_find(p->p.table, prefix, pxlen))
|
||||
rte_update(p->p.table, n, &p->p, &p->p, NULL);
|
||||
}
|
||||
if (a0)
|
||||
bgp_rte_update(p, prefix, pxlen, path_id, &last_id, &src, a0, &a);
|
||||
else /* Forced withdraw as a result of soft error */
|
||||
bgp_rte_withdraw(p, prefix, pxlen, path_id, &last_id, &src);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -300,14 +300,14 @@ ospf_init(struct proto_config *c)
|
|||
{
|
||||
struct proto *p = proto_new(c, sizeof(struct proto_ospf));
|
||||
|
||||
p->make_tmp_attrs = ospf_make_tmp_attrs;
|
||||
p->store_tmp_attrs = ospf_store_tmp_attrs;
|
||||
p->import_control = ospf_import_control;
|
||||
p->reload_routes = ospf_reload_routes;
|
||||
p->accept_ra_types = RA_OPTIMAL;
|
||||
p->rt_notify = ospf_rt_notify;
|
||||
p->if_notify = ospf_if_notify;
|
||||
p->ifa_notify = ospf_ifa_notify;
|
||||
p->import_control = ospf_import_control;
|
||||
p->reload_routes = ospf_reload_routes;
|
||||
p->make_tmp_attrs = ospf_make_tmp_attrs;
|
||||
p->store_tmp_attrs = ospf_store_tmp_attrs;
|
||||
p->rte_better = ospf_rte_better;
|
||||
p->rte_same = ospf_rte_same;
|
||||
|
||||
|
|
@ -504,7 +504,7 @@ ospf_import_control(struct proto *p, rte ** new, ea_list ** attrs,
|
|||
struct ospf_area *oa = ospf_main_area((struct proto_ospf *) p);
|
||||
rte *e = *new;
|
||||
|
||||
if (p == e->attrs->proto)
|
||||
if (e->attrs->src->proto == p)
|
||||
return -1; /* Reject our own routes */
|
||||
|
||||
if (oa_is_stub(oa))
|
||||
|
|
|
|||
|
|
@ -1991,10 +1991,10 @@ again1:
|
|||
if (nf->n.type) /* Add the route */
|
||||
{
|
||||
rta a0 = {
|
||||
.proto = p,
|
||||
.src = p->main_source,
|
||||
.source = nf->n.type,
|
||||
.scope = SCOPE_UNIVERSE,
|
||||
.cast = RTC_UNICAST,
|
||||
.cast = RTC_UNICAST
|
||||
};
|
||||
|
||||
if (nf->n.nhs->next)
|
||||
|
|
@ -2032,7 +2032,7 @@ again1:
|
|||
|
||||
DBG("Mod rte type %d - %I/%d via %I on iface %s, met %d\n",
|
||||
a0.source, nf->fn.prefix, nf->fn.pxlen, a0.gw, a0.iface ? a0.iface->name : "(none)", nf->n.metric1);
|
||||
rte_update(p->table, ne, p, p, e);
|
||||
rte_update(p, ne, e);
|
||||
}
|
||||
}
|
||||
else if (nf->old_rta)
|
||||
|
|
@ -2042,7 +2042,7 @@ again1:
|
|||
nf->old_rta = NULL;
|
||||
|
||||
net *ne = net_get(p->table, nf->fn.prefix, nf->fn.pxlen);
|
||||
rte_update(p->table, ne, p, p, NULL);
|
||||
rte_update(p, ne, NULL);
|
||||
}
|
||||
|
||||
/* Remove unused rt entry. Entries with fn.x0 == 1 are persistent. */
|
||||
|
|
|
|||
|
|
@ -49,7 +49,7 @@ pipe_rt_notify(struct proto *P, rtable *src_table, net *n, rte *new, rte *old, e
|
|||
struct pipe_proto *p = (struct pipe_proto *) P;
|
||||
struct announce_hook *ah = (src_table == P->table) ? p->peer_ahook : P->main_ahook;
|
||||
rtable *dst_table = ah->table;
|
||||
struct proto *src;
|
||||
struct rte_src *src;
|
||||
|
||||
net *nn;
|
||||
rte *e;
|
||||
|
|
@ -72,7 +72,7 @@ pipe_rt_notify(struct proto *P, rtable *src_table, net *n, rte *new, rte *old, e
|
|||
|
||||
if (p->mode == PIPE_OPAQUE)
|
||||
{
|
||||
a.proto = &p->p;
|
||||
a.src = P->main_source;
|
||||
a.source = RTS_PIPE;
|
||||
}
|
||||
|
||||
|
|
@ -91,16 +91,16 @@ pipe_rt_notify(struct proto *P, rtable *src_table, net *n, rte *new, rte *old, e
|
|||
e->pflags = new->pflags;
|
||||
}
|
||||
|
||||
src = new->attrs->proto;
|
||||
src = a.src;
|
||||
}
|
||||
else
|
||||
{
|
||||
e = NULL;
|
||||
src = old->attrs->proto;
|
||||
src = old->attrs->src;
|
||||
}
|
||||
|
||||
src_table->pipe_busy = 1;
|
||||
rte_update2(ah, nn, e, (p->mode == PIPE_OPAQUE) ? &p->p : src);
|
||||
rte_update2(ah, nn, e, src);
|
||||
src_table->pipe_busy = 0;
|
||||
}
|
||||
|
||||
|
|
@ -173,6 +173,12 @@ pipe_start(struct proto *P)
|
|||
p->peer_ahook->in_limit = cf->c.out_limit;
|
||||
proto_reset_limit(p->peer_ahook->in_limit);
|
||||
|
||||
if (p->mode == PIPE_OPAQUE)
|
||||
{
|
||||
P->main_source = rt_get_source(P, 0);
|
||||
rt_lock_source(P->main_source);
|
||||
}
|
||||
|
||||
return PS_UP;
|
||||
}
|
||||
|
||||
|
|
@ -187,6 +193,10 @@ pipe_cleanup(struct proto *P)
|
|||
P->main_ahook = NULL;
|
||||
p->peer_ahook = NULL;
|
||||
|
||||
if (p->mode == PIPE_OPAQUE)
|
||||
rt_unlock_source(P->main_source);
|
||||
P->main_source = NULL;
|
||||
|
||||
rt_unlock_table(P->table);
|
||||
rt_unlock_table(p->peer_table);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -263,16 +263,18 @@ find_interface(struct proto *p, struct iface *what)
|
|||
* This part is responsible for any updates that come from network
|
||||
*/
|
||||
|
||||
static int rip_rte_better(struct rte *new, struct rte *old);
|
||||
|
||||
static void
|
||||
rip_rte_update_if_better(rtable *tab, net *net, struct proto *p, rte *new)
|
||||
{
|
||||
rte *old;
|
||||
|
||||
old = rte_find(net, p);
|
||||
if (!old || p->rte_better(new, old) ||
|
||||
old = rte_find(net, p->main_source);
|
||||
if (!old || rip_rte_better(new, old) ||
|
||||
(ipa_equal(old->attrs->from, new->attrs->from) &&
|
||||
(old->u.rip.metric != new->u.rip.metric)) )
|
||||
rte_update(tab, net, p, p, new);
|
||||
rte_update(p, net, new);
|
||||
else
|
||||
rte_free(new);
|
||||
}
|
||||
|
|
@ -295,7 +297,7 @@ advertise_entry( struct proto *p, struct rip_block *b, ip_addr whotoldme, struct
|
|||
int pxlen;
|
||||
|
||||
bzero(&A, sizeof(A));
|
||||
A.proto = p;
|
||||
A.src= p->main_source;
|
||||
A.source = RTS_RIP;
|
||||
A.scope = SCOPE_UNIVERSE;
|
||||
A.cast = RTC_UNICAST;
|
||||
|
|
@ -614,20 +616,10 @@ rip_start(struct proto *p)
|
|||
add_head( &P->interfaces, NODE rif );
|
||||
CHK_MAGIC;
|
||||
|
||||
rip_init_instance(p);
|
||||
|
||||
DBG( "RIP: ...done\n");
|
||||
return PS_UP;
|
||||
}
|
||||
|
||||
static struct proto *
|
||||
rip_init(struct proto_config *cfg)
|
||||
{
|
||||
struct proto *p = proto_new(cfg, sizeof(struct rip_proto));
|
||||
|
||||
return p;
|
||||
}
|
||||
|
||||
static void
|
||||
rip_dump(struct proto *p)
|
||||
{
|
||||
|
|
@ -855,7 +847,7 @@ rip_gen_attrs(struct linpool *pool, int metric, u16 tag)
|
|||
static int
|
||||
rip_import_control(struct proto *p, struct rte **rt, struct ea_list **attrs, struct linpool *pool)
|
||||
{
|
||||
if ((*rt)->attrs->proto == p) /* My own must not be touched */
|
||||
if ((*rt)->attrs->src->proto == p) /* My own must not be touched */
|
||||
return 1;
|
||||
|
||||
if ((*rt)->attrs->source != RTS_RIP) {
|
||||
|
|
@ -907,7 +899,7 @@ rip_rt_notify(struct proto *p, struct rtable *table UNUSED, struct network *net,
|
|||
if (e->metric > P_CF->infinity)
|
||||
e->metric = P_CF->infinity;
|
||||
|
||||
if (new->attrs->proto == p)
|
||||
if (new->attrs->src->proto == p)
|
||||
e->whotoldme = new->attrs->from;
|
||||
|
||||
if (!e->metric) /* That's okay: this way user can set his own value for external
|
||||
|
|
@ -929,7 +921,7 @@ rip_rte_same(struct rte *new, struct rte *old)
|
|||
static int
|
||||
rip_rte_better(struct rte *new, struct rte *old)
|
||||
{
|
||||
struct proto *p = new->attrs->proto;
|
||||
struct proto *p = new->attrs->src->proto;
|
||||
|
||||
if (ipa_equal(old->attrs->from, new->attrs->from))
|
||||
return 1;
|
||||
|
|
@ -940,7 +932,7 @@ rip_rte_better(struct rte *new, struct rte *old)
|
|||
if (old->u.rip.metric > new->u.rip.metric)
|
||||
return 1;
|
||||
|
||||
if (old->attrs->proto == new->attrs->proto) /* This does not make much sense for different protocols */
|
||||
if (old->attrs->src->proto == new->attrs->src->proto) /* This does not make much sense for different protocols */
|
||||
if ((old->u.rip.metric == new->u.rip.metric) &&
|
||||
((now - old->lastmod) > (P_CF->timeout_time / 2)))
|
||||
return 1;
|
||||
|
|
@ -956,7 +948,7 @@ rip_rte_better(struct rte *new, struct rte *old)
|
|||
static void
|
||||
rip_rte_insert(net *net UNUSED, rte *rte)
|
||||
{
|
||||
struct proto *p = rte->attrs->proto;
|
||||
struct proto *p = rte->attrs->src->proto;
|
||||
CHK_MAGIC;
|
||||
DBG( "rip_rte_insert: %p\n", rte );
|
||||
add_head( &P->garbage, &rte->u.rip.garbage );
|
||||
|
|
@ -969,16 +961,18 @@ static void
|
|||
rip_rte_remove(net *net UNUSED, rte *rte)
|
||||
{
|
||||
#ifdef LOCAL_DEBUG
|
||||
struct proto *p = rte->attrs->proto;
|
||||
struct proto *p = rte->attrs->src->proto;
|
||||
CHK_MAGIC;
|
||||
DBG( "rip_rte_remove: %p\n", rte );
|
||||
#endif
|
||||
rem_node( &rte->u.rip.garbage );
|
||||
}
|
||||
|
||||
void
|
||||
rip_init_instance(struct proto *p)
|
||||
static struct proto *
|
||||
rip_init(struct proto_config *cfg)
|
||||
{
|
||||
struct proto *p = proto_new(cfg, sizeof(struct rip_proto));
|
||||
|
||||
p->accept_ra_types = RA_OPTIMAL;
|
||||
p->if_notify = rip_if_notify;
|
||||
p->rt_notify = rip_rt_notify;
|
||||
|
|
@ -989,6 +983,8 @@ rip_init_instance(struct proto *p)
|
|||
p->rte_same = rip_rte_same;
|
||||
p->rte_insert = rip_rte_insert;
|
||||
p->rte_remove = rip_rte_remove;
|
||||
|
||||
return p;
|
||||
}
|
||||
|
||||
void
|
||||
|
|
|
|||
|
|
@ -177,7 +177,6 @@ struct rip_proto {
|
|||
#endif
|
||||
|
||||
|
||||
void rip_init_instance(struct proto *p);
|
||||
void rip_init_config(struct rip_proto_config *c);
|
||||
|
||||
/* Authentication functions */
|
||||
|
|
|
|||
|
|
@ -67,7 +67,7 @@ static_install(struct proto *p, struct static_route *r, struct iface *ifa)
|
|||
|
||||
DBG("Installing static route %I/%d, rtd=%d\n", r->net, r->masklen, r->dest);
|
||||
bzero(&a, sizeof(a));
|
||||
a.proto = p;
|
||||
a.src = p->main_source;
|
||||
a.source = (r->dest == RTD_DEVICE) ? RTS_STATIC_DEVICE : RTS_STATIC;
|
||||
a.scope = SCOPE_UNIVERSE;
|
||||
a.cast = RTC_UNICAST;
|
||||
|
|
@ -113,7 +113,7 @@ static_install(struct proto *p, struct static_route *r, struct iface *ifa)
|
|||
e = rte_get_temp(aa);
|
||||
e->net = n;
|
||||
e->pflags = 0;
|
||||
rte_update(p->table, n, p, p, e);
|
||||
rte_update(p, n, e);
|
||||
r->installed = 1;
|
||||
}
|
||||
|
||||
|
|
@ -127,8 +127,7 @@ static_remove(struct proto *p, struct static_route *r)
|
|||
|
||||
DBG("Removing static route %I/%d\n", r->net, r->masklen);
|
||||
n = net_find(p->table, r->net, r->masklen);
|
||||
if (n)
|
||||
rte_update(p->table, n, p, p, NULL);
|
||||
rte_update(p, n, NULL);
|
||||
r->installed = 0;
|
||||
}
|
||||
|
||||
|
|
@ -367,6 +366,7 @@ static_init(struct proto_config *c)
|
|||
|
||||
p->neigh_notify = static_neigh_notify;
|
||||
p->if_notify = static_if_notify;
|
||||
|
||||
return p;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -432,7 +432,7 @@ krt_read_route(struct ks_msg *msg, struct krt_proto *p, int scan)
|
|||
net = net_get(p->p.table, idst, pxlen);
|
||||
|
||||
rta a = {
|
||||
.proto = &p->p,
|
||||
.src = p->p.main_source,
|
||||
.source = RTS_INHERIT,
|
||||
.scope = SCOPE_UNIVERSE,
|
||||
.cast = RTC_UNICAST
|
||||
|
|
|
|||
|
|
@ -805,7 +805,7 @@ nl_parse_route(struct nlmsghdr *h, int scan)
|
|||
net *net = net_get(p->p.table, dst, i->rtm_dst_len);
|
||||
|
||||
rta ra = {
|
||||
.proto = &p->p,
|
||||
.src= p->p.main_source,
|
||||
.source = RTS_INHERIT,
|
||||
.scope = SCOPE_UNIVERSE,
|
||||
.cast = RTC_UNICAST
|
||||
|
|
|
|||
|
|
@ -351,15 +351,14 @@ krt_learn_announce_update(struct krt_proto *p, rte *e)
|
|||
ee->pflags = 0;
|
||||
ee->pref = p->p.preference;
|
||||
ee->u.krt = e->u.krt;
|
||||
rte_update(p->p.table, nn, &p->p, &p->p, ee);
|
||||
rte_update(&p->p, nn, ee);
|
||||
}
|
||||
|
||||
static void
|
||||
krt_learn_announce_delete(struct krt_proto *p, net *n)
|
||||
{
|
||||
n = net_find(p->p.table, n->n.prefix, n->n.pxlen);
|
||||
if (n)
|
||||
rte_update(p->p.table, n, &p->p, &p->p, NULL);
|
||||
rte_update(&p->p, n, NULL);
|
||||
}
|
||||
|
||||
/* Called when alien route is discovered during scan */
|
||||
|
|
@ -697,7 +696,7 @@ krt_export_rte(struct krt_proto *p, rte **new, ea_list **tmpa)
|
|||
if (filter == FILTER_ACCEPT)
|
||||
return 1;
|
||||
|
||||
struct proto *src = (*new)->attrs->proto;
|
||||
struct proto *src = (*new)->attrs->src->proto;
|
||||
*tmpa = src->make_tmp_attrs ? src->make_tmp_attrs(*new, krt_filter_lp) : NULL;
|
||||
return f_run(filter, new, tmpa, krt_filter_lp, FF_FORCE_TMPATTR) <= F_ACCEPT;
|
||||
}
|
||||
|
|
@ -939,7 +938,7 @@ krt_import_control(struct proto *P, rte **new, ea_list **attrs, struct linpool *
|
|||
struct krt_proto *p = (struct krt_proto *) P;
|
||||
rte *e = *new;
|
||||
|
||||
if (e->attrs->proto == P)
|
||||
if (e->attrs->src->proto == P)
|
||||
return -1;
|
||||
|
||||
if (!KRT_CF->devroutes &&
|
||||
|
|
@ -991,10 +990,10 @@ krt_init(struct proto_config *c)
|
|||
struct krt_proto *p = proto_new(c, sizeof(struct krt_proto));
|
||||
|
||||
p->p.accept_ra_types = RA_OPTIMAL;
|
||||
p->p.make_tmp_attrs = krt_make_tmp_attrs;
|
||||
p->p.store_tmp_attrs = krt_store_tmp_attrs;
|
||||
p->p.import_control = krt_import_control;
|
||||
p->p.rt_notify = krt_notify;
|
||||
p->p.make_tmp_attrs = krt_make_tmp_attrs;
|
||||
p->p.store_tmp_attrs = krt_store_tmp_attrs;
|
||||
p->p.rte_same = krt_rte_same;
|
||||
|
||||
krt_sys_init(p);
|
||||
|
|
|
|||
Loading…
Reference in a new issue