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Merge branch 'rt-accepted'

Browse Source 
Conflicts:

	nest/config.Y
	nest/rt-table.c
	proto/bgp/bgp.c
This commit is contained in:
Ondrej Zajicek 2012-07-16 14:44:45 +02:00
commit abced4a914
7 changed files with 375 additions and 172 deletions
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15
nest/config.Y
View File

@ -47,7 +47,7 @@ CF_KEYWORDS(INTERFACE, IMPORT, EXPORT, FILTER, NONE, TABLE, STATES, ROUTES, FILT
CF_KEYWORDS(LIMIT, ACTION, WARN, BLOCK, RESTART, DISABLE)
CF_KEYWORDS(PASSWORD, FROM, PASSIVE, TO, ID, EVENTS, PACKETS, PROTOCOLS, INTERFACES)
CF_KEYWORDS(PRIMARY, STATS, COUNT, FOR, COMMANDS, PREEXPORT, GENERATE, ROA, MAX, FLUSH)
CF_KEYWORDS(LISTEN, BGP, V6ONLY, DUAL, ADDRESS, PORT, PASSWORDS, DESCRIPTION)
CF_KEYWORDS(LISTEN, BGP, V6ONLY, DUAL, ADDRESS, PORT, PASSWORDS, DESCRIPTION, SORTED)
CF_KEYWORDS(RELOAD, IN, OUT, MRTDUMP, MESSAGES, RESTRICT, MEMORY, IGP_METRIC)
CF_ENUM(T_ENUM_RTS, RTS_, DUMMY, STATIC, INHERIT, DEVICE, STATIC_DEVICE, REDIRECT,
@ -65,7 +65,7 @@ CF_ENUM(T_ENUM_ROA, ROA_, UNKNOWN, VALID, INVALID)
%type <ro> roa_args
%type <rot> roa_table_arg
%type <sd> sym_args
%type <i> proto_start echo_mask echo_size debug_mask debug_list debug_flag mrtdump_mask mrtdump_list mrtdump_flag export_or_preexport roa_mode limit_action
%type <i> proto_start echo_mask echo_size debug_mask debug_list debug_flag mrtdump_mask mrtdump_list mrtdump_flag export_or_preexport roa_mode limit_action tab_sorted
%type <ps> proto_patt proto_patt2
%type <g> limit_spec
@ -112,10 +112,17 @@ listen_opt:
/* Creation of routing tables */
tab_sorted:
{ $$ = 0; }
| SORTED { $$ = 1; }
;
CF_ADDTO(conf, newtab)
newtab: TABLE SYM {
rt_new_table($2);
newtab: TABLE SYM tab_sorted {
struct rtable_config *cf;
cf = rt_new_table($2);
cf->sorted = $3;
}
;

8
nest/route.h
View File

@ -121,6 +121,7 @@ struct rtable_config {
struct proto_config *krt_attached; /* Kernel syncer attached to this table */
int gc_max_ops; /* Maximum number of operations before GC is run */
int gc_min_time; /* Minimum time between two consecutive GC runs */
byte sorted; /* Routes of network are sorted according to rte_better() */
};
typedef struct rtable {
@ -219,11 +220,12 @@ typedef struct rte {
} u;
} rte;
#define REF_COW 1 /* Copy this rte on write */
#define REF_COW 1 /* Copy this rte on write */
/* Types of route announcement, also used as flags */
#define RA_OPTIMAL 1 /* Announcement of optimal route change */
#define RA_ANY 2 /* Announcement of any route change */
#define RA_OPTIMAL 1 /* Announcement of optimal route change */
#define RA_ACCEPTED 2 /* Announcement of first accepted route */
#define RA_ANY 3 /* Announcement of any route change */
struct config;

502
nest/rt-table.c
View File

@ -182,97 +182,81 @@ rte_trace_out(unsigned int flag, struct proto *p, rte *e, char *msg)
rte_trace(p, e, '<', msg);
}
/**
* do_rte_announce - announce new rte to protocol
* @ah: pointer to announce hook
* @type: announce type (RA_ANY or RA_OPTIMAL)
* @net: pointer to announced network
* @new: new rte or NULL
* @old: previous rte or NULL
* @tmpa: new rte attributes (possibly modified by filter)
* @refeed: whether we are refeeding protocol
*/
static inline void
do_rte_announce(struct announce_hook *ah, int type UNUSED, net *net, rte *new, rte *old, ea_list *tmpa, int refeed)
static rte *
export_filter(struct announce_hook *ah, rte *rt0, rte **rt_free, ea_list **tmpa, int silent)
{
struct proto *p = ah->proto;
struct filter *filter = ah->out_filter;
struct proto_stats *stats = ah->stats;
ea_list *tmpb = NULL;
rte *rt;
int v;
rte *new0 = new;
rte *old0 = old;
int ok;
rt = rt0;
*rt_free = NULL;
if (new)
/* If called does not care for eattrs, we prepare one internally */
if (!tmpa)
{
stats->exp_updates_received++;
char *drop_reason = NULL;
if ((ok = p->import_control ? p->import_control(p, &new, &tmpa, rte_update_pool) : 0) < 0)
{
stats->exp_updates_rejected++;
drop_reason = "rejected by protocol";
}
else if (ok)
rte_trace_out(D_FILTERS, p, new, "forced accept by protocol");
else if ((filter == FILTER_REJECT) ||
(filter && f_run(filter, &new, &tmpa, rte_update_pool, FF_FORCE_TMPATTR) > F_ACCEPT))
{
stats->exp_updates_filtered++;
drop_reason = "filtered out";
}
if (drop_reason)
{
rte_trace_out(D_FILTERS, p, new, drop_reason);
if (new != new0)
rte_free(new);
new = NULL;
}
}
else
stats->exp_withdraws_received++;
/*
* This is a tricky part - we don't know whether route 'old' was
* exported to protocol 'p' or was filtered by the export filter.
* We try tu run the export filter to know this to have a correct
* value in 'old' argument of rte_update (and proper filter value)
*
* FIXME - this is broken because 'configure soft' may change
* filters but keep routes. Refeed is expected to be called after
* change of the filters and with old == new, therefore we do not
* even try to run the filter on an old route, This may lead to
* 'spurious withdraws' but ensure that there are no 'missing
* withdraws'.
*
* This is not completely safe as there is a window between
* reconfiguration and the end of refeed - if a newly filtered
* route disappears during this period, proper withdraw is not
* sent (because old would be also filtered) and the route is
* not refeeded (because it disappeared before that).
*/
if (old && !refeed)
{
if (filter == FILTER_REJECT)
old = NULL;
else
{
ea_list *tmpb = p->make_tmp_attrs ? p->make_tmp_attrs(old, rte_update_pool) : NULL;
ok = p->import_control ? p->import_control(p, &old, &tmpb, rte_update_pool) : 0;
if (ok < 0 || (!ok && filter && f_run(filter, &old, &tmpb, rte_update_pool, FF_FORCE_TMPATTR) > F_ACCEPT))
{
if (old != old0)
rte_free(old);
old = NULL;
}
}
struct proto *src = rt->attrs->proto;
tmpb = src->make_tmp_attrs ? src->make_tmp_attrs(rt, rte_update_pool) : NULL;
tmpa = &tmpb;
}
v = p->import_control ? p->import_control(p, &rt, tmpa, rte_update_pool) : 0;
if (v < 0)
{
if (silent)
goto reject;
stats->exp_updates_rejected++;
rte_trace_out(D_FILTERS, p, rt, "rejected by protocol");
goto reject;
}
if (v > 0)
{
if (!silent)
rte_trace_out(D_FILTERS, p, rt, "forced accept by protocol");
goto accept;
}
v = filter && ((filter == FILTER_REJECT) ||
(f_run(filter, &rt, tmpa, rte_update_pool, FF_FORCE_TMPATTR) > F_ACCEPT));
if (v)
{
if (silent)
goto reject;
stats->exp_updates_filtered++;
rte_trace_out(D_FILTERS, p, rt, "filtered out");
goto reject;
}
accept:
if (rt != rt0)
*rt_free = rt;
return rt;
reject:
/* Discard temporary rte */
if (rt != rt0)
rte_free(rt);
return NULL;
}
static void
do_rt_notify(struct announce_hook *ah, net *net, rte *new, rte *old, ea_list *tmpa, int refeed)
{
struct proto *p = ah->proto;
struct proto_stats *stats = ah->stats;
/*
* First, apply export limit.
*
* Export route limits has several problems. Because exp_routes
* counter is reset before refeed, we don't really know whether
* limit is breached and whether the update is new or not Therefore
* limit is breached and whether the update is new or not. Therefore
* the number of really exported routes may exceed the limit
* temporarily (routes exported before and new routes in refeed).
*
@ -305,15 +289,13 @@ do_rte_announce(struct announce_hook *ah, int type UNUSED, net *net, rte *new, r
stats->exp_routes++; /* see note above */
stats->exp_updates_rejected++;
rte_trace_out(D_FILTERS, p, new, "rejected [limit]");
if (new != new0)
rte_free(new);
new = NULL;
if (!old)
return;
}
}
/* FIXME - This is broken because of incorrect 'old' value (see above) */
if (!new && !old)
return;
if (new)
stats->exp_updates_accepted++;
@ -349,11 +331,172 @@ do_rte_announce(struct announce_hook *ah, int type UNUSED, net *net, rte *new, r
}
else
p->rt_notify(p, ah->table, net, new, old, new->attrs->eattrs);
}
if (new && new != new0) /* Discard temporary rte's */
rte_free(new);
if (old && old != old0)
rte_free(old);
static void
rt_notify_basic(struct announce_hook *ah, net *net, rte *new, rte *old, ea_list *tmpa, int refeed)
{
// struct proto *p = ah->proto;
struct proto_stats *stats = ah->stats;
rte *new_free = NULL;
rte *old_free = NULL;
if (new)
stats->exp_updates_received++;
else
stats->exp_withdraws_received++;
/*
* This is a tricky part - we don't know whether route 'old' was
* exported to protocol 'p' or was filtered by the export filter.
* We try to run the export filter to know this to have a correct
* value in 'old' argument of rte_update (and proper filter value)
*
* FIXME - this is broken because 'configure soft' may change
* filters but keep routes. Refeed is expected to be called after
* change of the filters and with old == new, therefore we do not
* even try to run the filter on an old route, This may lead to
* 'spurious withdraws' but ensure that there are no 'missing
* withdraws'.
*
* This is not completely safe as there is a window between
* reconfiguration and the end of refeed - if a newly filtered
* route disappears during this period, proper withdraw is not
* sent (because old would be also filtered) and the route is
* not refeeded (because it disappeared before that).
*/
if (new)
new = export_filter(ah, new, &new_free, &tmpa, 0);
if (old && !refeed)
old = export_filter(ah, old, &old_free, NULL, 1);
/* FIXME - This is broken because of incorrect 'old' value (see above) */
if (!new && !old)
return;
do_rt_notify(ah, net, new, old, tmpa, refeed);
/* Discard temporary rte's */
if (new_free)
rte_free(new_free);
if (old_free)
rte_free(old_free);
}
static void
rt_notify_accepted(struct announce_hook *ah, net *net, rte *new_changed, rte *old_changed, rte *before_old,
ea_list *tmpa, int feed)
{
// struct proto *p = ah->proto;
struct proto_stats *stats = ah->stats;
rte *new_best = NULL;
rte *old_best = NULL;
rte *new_free = NULL;
rte *old_free = NULL;
rte *r;
/* Used to track whether we met old_changed position. If it is NULL
it was the first and met it implicitly before current best route. */
int old_meet = (old_changed && !before_old) ? 1 : 0;
if (new_changed)
stats->exp_updates_received++;
else
stats->exp_withdraws_received++;
/* First, find the new_best route - first accepted by filters */
for (r=net->routes; r; r=r->next)
{
if (new_best = export_filter(ah, r, &new_free, &tmpa, 0))
break;
/* Note if we walked around the position of old_changed route */
if (r == before_old)
old_meet = 1;
}
/*
* Second, handle the feed case. That means we do not care for
* old_best. It is NULL for feed, and the new_best for refeed.
* For refeed, there is a hack similar to one in rt_notify_basic()
* to ensure withdraws in case of changed filters
*/
if (feed)
{
if (feed == 2) /* refeed */
old_best = new_best ? new_best : net->routes;
else
old_best = NULL;
if (!new_best && !old_best)
return;
goto found;
}
/*
* Now, we find the old_best route. Generally, it is the same as the
* new_best, unless new_best is the same as new_changed or
* old_changed is accepted before new_best.
*
* There are four cases:
*
* - We would find and accept old_changed before new_best, therefore
* old_changed is old_best. In remaining cases we suppose this
* is not true.
*
* - We found no new_best, therefore there is also no old_best and
* we ignore this withdraw.
*
* - We found new_best different than new_changed, therefore
* old_best is the same as new_best and we ignore this update.
*
* - We found new_best the same as new_changed, therefore it cannot
* be old_best and we have to continue search for old_best.
*/
/* First case */
if (old_meet)
if (old_best = export_filter(ah, old_changed, &old_free, NULL, 1))
goto found;
/* Second case */
if (!new_best)
return;
/* Third case, we use r instead of new_best, because export_filter() could change it */
if (r != new_changed)
{
if (new_free)
rte_free(new_free);
return;
}
/* Fourth case */
for (r=r->next; r; r=r->next)
{
if (old_best = export_filter(ah, r, &old_free, NULL, 1))
goto found;
if (r == before_old)
if (old_best = export_filter(ah, old_changed, &old_free, NULL, 1))
goto found;
}
/* Implicitly, old_best is NULL and new_best is non-NULL */
found:
do_rt_notify(ah, net, new_best, old_best, tmpa, (feed == 2));
/* Discard temporary rte's */
if (new_free)
rte_free(new_free);
if (old_free)
rte_free(old_free);
}
/**
@ -386,7 +529,7 @@ do_rte_announce(struct announce_hook *ah, int type UNUSED, net *net, rte *new, r
* the protocol gets called.
*/
static void
rte_announce(rtable *tab, unsigned type, net *net, rte *new, rte *old, ea_list *tmpa)
rte_announce(rtable *tab, unsigned type, net *net, rte *new, rte *old, rte *before_old, ea_list *tmpa)
{
struct announce_hook *a;
@ -405,11 +548,13 @@ rte_announce(rtable *tab, unsigned type, net *net, rte *new, rte *old, ea_list *
{
ASSERT(a->proto->core_state == FS_HAPPY || a->proto->core_state == FS_FEEDING);
if (a->proto->accept_ra_types == type)
do_rte_announce(a, type, net, new, old, tmpa, 0);
if (type == RA_ACCEPTED)
rt_notify_accepted(a, net, new, old, before_old, tmpa, 0);
else
rt_notify_basic(a, net, new, old, tmpa, 0);
}
}
static inline int
rte_validate(rte *e)
{
@ -472,9 +617,10 @@ rte_recalculate(struct announce_hook *ah, net *net, rte *new, ea_list *tmpa, str
struct proto *p = ah->proto;
struct rtable *table = ah->table;
struct proto_stats *stats = ah->stats;
rte *before_old = NULL;
rte *old_best = net->routes;
rte *old = NULL;
rte **k, *r, *s;
rte **k;
k = &net->routes; /* Find and remove original route from the same protocol */
while (old = *k)
@ -519,8 +665,12 @@ rte_recalculate(struct announce_hook *ah, net *net, rte *new, ea_list *tmpa, str
break;
}
k = &old->next;
before_old = old;
}
if (!old)
before_old = NULL;
if (!old && !new)
{
stats->imp_withdraws_ignored++;
@ -552,82 +702,93 @@ rte_recalculate(struct announce_hook *ah, net *net, rte *new, ea_list *tmpa, str
if (old)
stats->imp_routes--;
rte_announce(table, RA_ANY, net, new, old, tmpa);
if (src->rte_recalculate && src->rte_recalculate(table, net, new, old, old_best))
goto do_recalculate;
if (new && rte_better(new, old_best))
if (table->config->sorted)
{
/* The first case - the new route is cleary optimal, we link it
at the first position and announce it */
rte_trace_in(D_ROUTES, p, new, "added [best]");
rte_announce(table, RA_OPTIMAL, net, new, old_best, tmpa);
new->next = net->routes;
net->routes = new;
}
else if (old == old_best)
{
/* The second case - the old best route disappeared, we add the
new route (if we have any) to the list (we don't care about
position) and then we elect the new optimal route and relink
that route at the first position and announce it. New optimal
route might be NULL if there is no more routes */
do_recalculate:
/* Add the new route to the list */
/* If routes are sorted, just insert new route to appropriate position */
if (new)
{
rte_trace_in(D_ROUTES, p, new, "added");
if (before_old && !rte_better(new, before_old))
k = &before_old->next;
else
k = &net->routes;
for (; *k; k=&(*k)->next)
if (rte_better(new, *k))
break;
new->next = *k;
*k = new;
}
}
else
{
/* 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))
goto do_recalculate;
if (new && rte_better(new, old_best))
{
/* The first case - the new route is cleary optimal,
we link it at the first position */
new->next = net->routes;
net->routes = new;
}
/* Find new optimal route */
r = NULL;
for (s=net->routes; s; s=s->next)
if (rte_better(s, r))
r = s;
/* Announce optimal route */
rte_announce(table, RA_OPTIMAL, net, r, old_best, tmpa);
/* And relink it (if there is any) */
if (r)
else if (old == old_best)
{
k = &net->routes;
while (s = *k)
/* The second case - the old best route disappeared, we add the
new route (if we have any) to the list (we don't care about
position) and then we elect the new optimal route and relink
that route at the first position and announce it. New optimal
route might be NULL if there is no more routes */
do_recalculate:
/* Add the new route to the list */
if (new)
{
if (s == r)
{
*k = r->next;
break;
}
k = &s->next;
new->next = net->routes;
net->routes = new;
}
/* Find a new optimal route (if there is any) */
if (net->routes)
{
rte **bp = &net->routes;
for (k=&(*bp)->next; *k; k=&(*k)->next)
if (rte_better(*k, *bp))
bp = k;
/* And relink it */
rte *best = *bp;
*bp = best->next;
best->next = net->routes;
net->routes = best;
}
r->next = net->routes;
net->routes = r;
}
else if (table->gc_counter++ >= table->config->gc_max_ops &&
table->gc_time + table->config->gc_min_time <= now)
rt_schedule_gc(table);
}
else if (new)
{
/* The third case - the new route is not better than the old
best route (therefore old_best != NULL) and the old best
route was not removed (therefore old_best == net->routes).
We just link the new route after the old best route. */
else if (new)
{
/* The third case - the new route is not better than the old
best route (therefore old_best != NULL) and the old best
route was not removed (therefore old_best == net->routes).
We just link the new route after the old best route. */
ASSERT(net->routes != NULL);
new->next = net->routes->next;
net->routes->next = new;
rte_trace_in(D_ROUTES, p, new, "added");
ASSERT(net->routes != NULL);
new->next = net->routes->next;
net->routes->next = new;
}
/* The fourth (empty) case - suboptimal route was removed, nothing to do */
}
/* Log the route removal */
if (!new && old && (p->debug & D_ROUTES))
if (new)
new->lastmod = now;
/* Log the route change */
if (new)
rte_trace_in(D_ROUTES, p, new, net->routes == new ? "added [best]" : "added");
if (!new && (p->debug & D_ROUTES))
{
if (old != old_best)
rte_trace_in(D_ROUTES, p, old, "removed");
@ -637,6 +798,18 @@ rte_recalculate(struct announce_hook *ah, net *net, rte *new, ea_list *tmpa, str
rte_trace_in(D_ROUTES, p, old, "removed [sole]");
}
/* Propagate the route change */
rte_announce(table, RA_ANY, net, new, old, NULL, tmpa);
if (net->routes != old_best)
rte_announce(table, RA_OPTIMAL, net, net->routes, old_best, NULL, tmpa);
if (table->config->sorted)
rte_announce(table, RA_ACCEPTED, net, new, old, before_old, tmpa);
if (!net->routes &&
(table->gc_counter++ >= table->config->gc_max_ops) &&
(table->gc_time + table->config->gc_min_time <= now))
rt_schedule_gc(table);
if (old)
{
if (p->rte_remove)
@ -645,7 +818,6 @@ rte_recalculate(struct announce_hook *ah, net *net, rte *new, ea_list *tmpa, str
}
if (new)
{
new->lastmod = now;
if (p->rte_insert)
p->rte_insert(net, new);
}
@ -777,7 +949,7 @@ rte_announce_i(rtable *tab, unsigned type, net *n, rte *new, rte *old)
rte_update_lock();
src = new->attrs->proto;
tmpa = src->make_tmp_attrs ? src->make_tmp_attrs(new, rte_update_pool) : NULL;
rte_announce(tab, type, n, new, old, tmpa);
rte_announce(tab, type, n, new, old, NULL, tmpa);
rte_update_unlock();
}
@ -1296,6 +1468,8 @@ rt_commit(struct config *new, struct config *old)
r->table = ot;
ot->name = r->name;
ot->config = r;
if (o->sorted != r->sorted)
log(L_WARN "Reconfiguration of rtable sorted flag not implemented");
}
else
{
@ -1324,12 +1498,15 @@ 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 *q = e->attrs->proto;
struct proto *src = e->attrs->proto;
ea_list *tmpa;
rte_update_lock();
tmpa = q->make_tmp_attrs ? q->make_tmp_attrs(e, rte_update_pool) : NULL;
do_rte_announce(h, type, n, e, p->refeeding ? e : NULL, tmpa, p->refeeding);
tmpa = src->make_tmp_attrs ? src->make_tmp_attrs(e, rte_update_pool) : NULL;
if (type == RA_ACCEPTED)
rt_notify_accepted(h, n, e, NULL, NULL, tmpa, p->refeeding ? 2 : 1);
else
rt_notify_basic(h, n, e, p->refeeding ? e : NULL, tmpa, p->refeeding);
rte_update_unlock();
}
@ -1372,12 +1549,13 @@ again:
return 0;
}
if (p->accept_ra_types == RA_OPTIMAL)
if ((p->accept_ra_types == RA_OPTIMAL) ||
(p->accept_ra_types == RA_ACCEPTED))
if (e)
{
if (p->core_state != FS_FEEDING)
return 1; /* In the meantime, the protocol fell down. */
do_feed_baby(p, RA_OPTIMAL, h, n, e);
do_feed_baby(p, p->accept_ra_types, h, n, e);
max_feed--;
}

3
proto/bgp/attrs.c
View File

@ -1258,7 +1258,8 @@ same_group(rte *r, u32 lpref, u32 lasn)
static inline int
use_deterministic_med(rte *r)
{
return ((struct bgp_proto *) r->attrs->proto)->cf->deterministic_med;
struct proto *P = r->attrs->proto;
return (P->proto == &proto_bgp) && ((struct bgp_proto *) P)->cf->deterministic_med;
}
int

14
proto/bgp/bgp.c
View File

@ -923,7 +923,7 @@ bgp_init(struct proto_config *C)
struct proto *P = proto_new(C, sizeof(struct bgp_proto));
struct bgp_proto *p = (struct bgp_proto *) P;
P->accept_ra_types = RA_OPTIMAL;
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;
@ -969,6 +969,7 @@ bgp_check_config(struct bgp_config *c)
if (internal && c->rs_client)
cf_error("Only external neighbor can be RS client");
if (c->multihop && (c->gw_mode == GW_DIRECT))
cf_error("Multihop BGP cannot use direct gateway mode");
@ -976,6 +977,7 @@ bgp_check_config(struct bgp_config *c)
ipa_has_link_scope(c->source_addr)))
cf_error("Multihop BGP cannot be used with link-local addresses");
/* Different default based on rs_client */
if (!c->missing_lladdr)
c->missing_lladdr = c->rs_client ? MLL_IGNORE : MLL_SELF;
@ -987,6 +989,16 @@ bgp_check_config(struct bgp_config *c)
/* Disable after error incompatible with restart limit action */
if (c->c.in_limit && (c->c.in_limit->action == PLA_RESTART) && c->disable_after_error)
c->c.in_limit->action = PLA_DISABLE;
if ((c->gw_mode == GW_RECURSIVE) && c->c.table->sorted)
cf_error("BGP in recursive mode prohibits sorted table");
if (c->deterministic_med && c->c.table->sorted)
cf_error("BGP with deterministic MED prohibits sorted table");
if (c->secondary && !c->c.table->sorted)
cf_error("BGP with secondary option requires sorted table");
}
static int

1
proto/bgp/bgp.h
View File

@ -42,6 +42,7 @@ struct bgp_config {
int advertise_ipv4; /* Whether we should add IPv4 capability advertisement to OPEN message */
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) */
unsigned connect_retry_time;
unsigned hold_time, initial_hold_time;
unsigned keepalive_time;

4
proto/bgp/config.Y
View File

@ -25,7 +25,8 @@ CF_KEYWORDS(BGP, LOCAL, NEIGHBOR, AS, HOLD, TIME, CONNECT, RETRY,
CLUSTER, ID, AS4, ADVERTISE, IPV4, CAPABILITIES, LIMIT, PASSIVE,
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)
TABLE, GATEWAY, DIRECT, RECURSIVE, MED, TTL, SECURITY, DETERMINISTIC,
SECONDARY)
CF_GRAMMAR
@ -105,6 +106,7 @@ 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 IGP TABLE rtable ';' { BGP_CFG->igp_table = $4; }
| bgp_proto TTL SECURITY bool ';' { BGP_CFG->ttl_security = $4; }
;