Commit 18f70a62 authored by Ondrej Zajicek (work)'s avatar Ondrej Zajicek (work)
Browse files

Nest: VRF of protocol can be explicitly specified as 'default'

Protocol can have specified VRF, in such case it is restricted to a set
of ifaces associated with the VRF, otherwise it can use all interfaces.

The patch allows to specify VRF as 'default', in which case it is
restricted to a set of iface not associated with any VRF.
parent 048c2f0e
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+3 −2
Original line number Diff line number Diff line
@@ -65,7 +65,7 @@ proto_postconfig(void)
CF_DECLS

CF_KEYWORDS(ROUTER, ID, PROTOCOL, TEMPLATE, PREFERENCE, DISABLED, DEBUG, ALL, OFF, DIRECT)
CF_KEYWORDS(INTERFACE, IMPORT, EXPORT, FILTER, NONE, VRF, TABLE, STATES, ROUTES, FILTERS)
CF_KEYWORDS(INTERFACE, IMPORT, EXPORT, FILTER, NONE, VRF, DEFAULT, TABLE, STATES, ROUTES, FILTERS)
CF_KEYWORDS(IPV4, IPV6, VPN4, VPN6, ROA4, ROA6, FLOW4, FLOW6, SADR, MPLS)
CF_KEYWORDS(RECEIVE, LIMIT, ACTION, WARN, BLOCK, RESTART, DISABLE, KEEP, FILTERED)
CF_KEYWORDS(PASSWORD, FROM, PASSIVE, TO, ID, EVENTS, PACKETS, PROTOCOLS, INTERFACES)
@@ -209,7 +209,8 @@ proto_item:
 | MRTDUMP mrtdump_mask { this_proto->mrtdump = $2; }
 | ROUTER ID idval { this_proto->router_id = $3; }
 | DESCRIPTION text { this_proto->dsc = $2; }
 | VRF text { this_proto->vrf = if_get_by_name($2); }
 | VRF text { this_proto->vrf = if_get_by_name($2); this_proto->vrf_set = 1; }
 | VRF DEFAULT { this_proto->vrf = NULL; this_proto->vrf_set = 1; }
 ;


+2 −2
Original line number Diff line number Diff line
@@ -147,7 +147,7 @@ ifa_send_notify(struct proto *p, unsigned c, struct ifa *a)
{
  if (p->ifa_notify &&
      (p->proto_state != PS_DOWN) &&
      (!p->vrf || p->vrf == a->iface->master))
      (!p->vrf_set || p->vrf == a->iface->master))
    {
      if (p->debug & D_IFACES)
	log(L_TRACE "%s < address %N on interface %s %s",
@@ -185,7 +185,7 @@ if_send_notify(struct proto *p, unsigned c, struct iface *i)
{
  if (p->if_notify &&
      (p->proto_state != PS_DOWN) &&
      (!p->vrf || p->vrf == i->master))
      (!p->vrf_set || p->vrf == i->master))
    {
      if (p->debug & D_IFACES)
	log(L_TRACE "%s < interface %s %s", p->name, i->name,
+6 −5
Original line number Diff line number Diff line
@@ -116,7 +116,7 @@ if_connected(ip_addr a, struct iface *i, struct ifa **ap, uint flags)
}

static inline int
if_connected_any(ip_addr a, struct iface *vrf, struct iface **iface, struct ifa **addr, uint flags)
if_connected_any(ip_addr a, struct iface *vrf, uint vrf_set, struct iface **iface, struct ifa **addr, uint flags)
{
  struct iface *i;
  struct ifa *b;
@@ -127,7 +127,7 @@ if_connected_any(ip_addr a, struct iface *vrf, struct iface **iface, struct ifa

  /* Get first match, but prefer SCOPE_HOST to other matches */
  WALK_LIST(i, iface_list)
    if ((!vrf || vrf == i->master) && ((s = if_connected(a, i, &b, flags)) >= 0))
    if ((!vrf_set || vrf == i->master) && ((s = if_connected(a, i, &b, flags)) >= 0))
      if ((scope < 0) || ((scope > SCOPE_HOST) && (s == SCOPE_HOST)))
      {
	*iface = i;
@@ -192,7 +192,7 @@ neigh_find(struct proto *p, ip_addr a, struct iface *iface, uint flags)
    iface = (scope < 0) ? NULL : iface;
  }
  else
    scope = if_connected_any(a, p->vrf, &iface, &addr, flags);
    scope = if_connected_any(a, p->vrf, p->vrf_set, &iface, &addr, flags);

  /* scope < 0 means i don't know neighbor */
  /* scope >= 0  <=>  iface != NULL */
@@ -309,6 +309,7 @@ neigh_free(neighbor *n)
void
neigh_update(neighbor *n, struct iface *iface)
{
  struct proto *p = n->proto;
  struct ifa *ifa = NULL;
  int scope = -1;

@@ -317,14 +318,14 @@ neigh_update(neighbor *n, struct iface *iface)
    return;

  /* VRF-bound neighbors ignore changes in other VRFs */
  if (n->proto->vrf && (n->proto->vrf != iface->master))
  if (p->vrf_set && (p->vrf != iface->master))
    return;

  scope = if_connected(n->addr, iface, &ifa, n->flags);

  /* When neighbor is going down, try to respawn it on other ifaces */
  if ((scope < 0) && (n->scope >= 0) && !n->ifreq && (n->flags & NEF_STICKY))
    scope = if_connected_any(n->addr, n->proto->vrf, &iface, &ifa, n->flags);
    scope = if_connected_any(n->addr, p->vrf, p->vrf_set, &iface, &ifa, n->flags);

  /* No change or minor change - ignore or notify */
  if ((scope == n->scope) && (iface == n->iface))
+5 −3
Original line number Diff line number Diff line
@@ -765,6 +765,7 @@ proto_init(struct proto_config *c, node *n)
  p->proto_state = PS_DOWN;
  p->last_state_change = current_time();
  p->vrf = c->vrf;
  p->vrf_set = c->vrf_set;
  insert_node(&p->n, n);

  p->event = ev_new_init(proto_pool, proto_event, p);
@@ -932,7 +933,8 @@ proto_reconfigure(struct proto *p, struct proto_config *oc, struct proto_config
  if ((nc->protocol != oc->protocol) ||
      (nc->net_type != oc->net_type) ||
      (nc->disabled != p->disabled) ||
      (nc->vrf != oc->vrf))
      (nc->vrf != oc->vrf) ||
      (nc->vrf_set != oc->vrf_set))
    return 0;

  p->name = nc->name;
@@ -1838,8 +1840,8 @@ proto_cmd_show(struct proto *p, uintptr_t verbose, int cnt)
      cli_msg(-1006, "  Message:        %s", p->message);
    if (p->cf->router_id)
      cli_msg(-1006, "  Router ID:      %R", p->cf->router_id);
    if (p->vrf)
      cli_msg(-1006, "  VRF:            %s", p->vrf->name);
    if (p->vrf_set)
      cli_msg(-1006, "  VRF:            %s", p->vrf ? p->vrf->name : "default");

    if (p->proto->show_proto_info)
      p->proto->show_proto_info(p);
+2 −0
Original line number Diff line number Diff line
@@ -120,6 +120,7 @@ struct proto_config {
  int class;				/* SYM_PROTO or SYM_TEMPLATE */
  u8 net_type;				/* Protocol network type (NET_*), 0 for undefined */
  u8 disabled;				/* Protocol enabled/disabled by default */
  u8 vrf_set;				/* Related VRF instance (below) is defined */
  u32 debug, mrtdump;			/* Debugging bitfields, both use D_* constants */
  u32 router_id;			/* Protocol specific router ID */

@@ -176,6 +177,7 @@ struct proto {
  uint active_channels;			/* Number of active channels */
  byte net_type;			/* Protocol network type (NET_*), 0 for undefined */
  byte disabled;			/* Manually disabled */
  byte vrf_set;				/* Related VRF instance (above) is defined */
  byte proto_state;			/* Protocol state machine (PS_*, see below) */
  byte active;				/* From PS_START to cleanup after PS_STOP */
  byte do_start;			/* Start actions are scheduled */
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