#include <vnet/dpo/receive_dpo.h>
#include <vnet/dpo/load_balance_map.h>
#include <vnet/dpo/lookup_dpo.h>
+#include <vnet/dpo/interface_rx_dpo.h>
+#include <vnet/dpo/mpls_disposition.h>
+#include <vnet/dpo/l2_bridge_dpo.h>
#include <vnet/adj/adj.h>
#include <vnet/adj/adj_mcast.h>
#include <vnet/fib/fib_path_list.h>
#include <vnet/fib/fib_internal.h>
#include <vnet/fib/fib_urpf_list.h>
+#include <vnet/fib/mpls_fib.h>
/**
* Enurmeration of path types
* deag. Link to a lookup adj in the next table
*/
FIB_PATH_TYPE_DEAG,
+ /**
+ * interface receive.
+ */
+ FIB_PATH_TYPE_INTF_RX,
/**
* receive. it's for-us.
*/
[FIB_PATH_TYPE_SPECIAL] = "special", \
[FIB_PATH_TYPE_EXCLUSIVE] = "exclusive", \
[FIB_PATH_TYPE_DEAG] = "deag", \
+ [FIB_PATH_TYPE_INTF_RX] = "intf-rx", \
[FIB_PATH_TYPE_RECEIVE] = "receive", \
}
* The path is resolved
*/
FIB_PATH_OPER_ATTRIBUTE_RESOLVED,
+ /**
+ * The path is attached, despite what the next-hop may say.
+ */
+ FIB_PATH_OPER_ATTRIBUTE_ATTACHED,
/**
* The path has become a permanent drop.
*/
FIB_PATH_OPER_FLAG_RECURSIVE_LOOP = (1 << FIB_PATH_OPER_ATTRIBUTE_RECURSIVE_LOOP),
FIB_PATH_OPER_FLAG_DROP = (1 << FIB_PATH_OPER_ATTRIBUTE_DROP),
FIB_PATH_OPER_FLAG_RESOLVED = (1 << FIB_PATH_OPER_ATTRIBUTE_RESOLVED),
+ FIB_PATH_OPER_FLAG_ATTACHED = (1 << FIB_PATH_OPER_ATTRIBUTE_ATTACHED),
} __attribute__ ((packed)) fib_path_oper_flags_t;
/**
* next-hop's address. We can't derive this from the address itself
* since the address can be all zeros
*/
- fib_protocol_t fp_nh_proto;
+ dpo_proto_t fp_nh_proto;
+
+ /**
+ * UCMP [unnormalised] weigth
+ */
+ u8 fp_weight;
/**
- * UCMP [unnormalised] weigt
+ * A path preference. 0 is the best.
+ * Only paths of the best preference, that are 'up', are considered
+ * for forwarding.
*/
- u32 fp_weight;
+ u8 fp_preference;
/**
* per-type union of the data required to resolve the path
* The next-hop
*/
ip46_address_t fp_ip;
- /**
- * The local label to resolve through.
- */
- mpls_label_t fp_local_label;
+ struct {
+ /**
+ * The local label to resolve through.
+ */
+ mpls_label_t fp_local_label;
+ /**
+ * The EOS bit of the resolving label
+ */
+ mpls_eos_bit_t fp_eos;
+ };
} fp_nh;
/**
* The FIB table index in which to find the next-hop.
- * This needs to be fixed. We should lookup the adjacencies in
- * a separate table of adjacencies, rather than from the FIB.
- * Two reasons I can think of:
- * - consider:
- * int ip addr Gig0 10.0.0.1/24
- * ip route 10.0.0.2/32 via Gig1 192.168.1.2
- * ip route 1.1.1.1/32 via Gig0 10.0.0.2
- * this is perfectly valid.
- * Packets addressed to 10.0.0.2 should be sent via Gig1.
- * Packets address to 1.1.1.1 should be sent via Gig0.
- * when we perform the adj resolution from the FIB for the path
- * "via Gig0 10.0.0.2" the lookup will result in the route via Gig1
- * and so we will pick up the adj via Gig1 - which was not what the
- * operator wanted.
- * - we can only return link-type IPv4 and so not the link-type MPLS.
- * more on this in a later commit.
- *
- * The table ID should only belong to a recursive path and indicate
- * which FIB should be used to resolve the next-hop.
*/
fib_node_index_t fp_tbl_id;
} recursive;
* The FIB index in which to perfom the next lookup
*/
fib_node_index_t fp_tbl_id;
+ /**
+ * The RPF-ID to tag the packets with
+ */
+ fib_rpf_id_t fp_rpf_id;
} deag;
struct {
} special;
*/
ip46_address_t fp_addr;
} receive;
+ struct {
+ /**
+ * The interface on which the packets will be input.
+ */
+ u32 fp_interface;
+ } intf_rx;
};
STRUCT_MARK(path_hash_end);
s = format (s, " index:%d ", fib_path_get_index(path));
s = format (s, "pl-index:%d ", path->fp_pl_index);
- s = format (s, "%U ", format_fib_protocol, path->fp_nh_proto);
+ s = format (s, "%U ", format_dpo_proto, path->fp_nh_proto);
s = format (s, "weight=%d ", path->fp_weight);
+ s = format (s, "pref=%d ", path->fp_preference);
s = format (s, "%s: ", fib_path_type_names[path->fp_type]);
if (FIB_PATH_OPER_FLAG_NONE != path->fp_oper_flags) {
s = format(s, " oper-flags:");
}
break;
case FIB_PATH_TYPE_RECURSIVE:
- if (FIB_PROTOCOL_MPLS == path->fp_nh_proto)
+ if (DPO_PROTO_MPLS == path->fp_nh_proto)
{
- s = format (s, "via %U",
+ s = format (s, "via %U %U",
format_mpls_unicast_label,
- path->recursive.fp_nh.fp_local_label);
+ path->recursive.fp_nh.fp_local_label,
+ format_mpls_eos_bit,
+ path->recursive.fp_nh.fp_eos);
}
else
{
break;
case FIB_PATH_TYPE_RECEIVE:
+ case FIB_PATH_TYPE_INTF_RX:
case FIB_PATH_TYPE_SPECIAL:
case FIB_PATH_TYPE_DEAG:
case FIB_PATH_TYPE_EXCLUSIVE:
* the subnet address (the attached route) links to the
* auto-adj (see below), we want that adj here too.
*/
- return (adj_nbr_add_or_lock(path->fp_nh_proto,
+ return (adj_nbr_add_or_lock(dpo_proto_to_fib(path->fp_nh_proto),
link,
&zero_addr,
path->attached_next_hop.fp_interface));
}
else
{
- return (adj_nbr_add_or_lock(path->fp_nh_proto,
+ return (adj_nbr_add_or_lock(dpo_proto_to_fib(path->fp_nh_proto),
link,
&path->attached_next_hop.fp_nh,
path->attached_next_hop.fp_interface));
* resolve directly via the adjacnecy discribed by the
* interface and next-hop
*/
- if (!vnet_sw_interface_is_admin_up(vnet_get_main(),
- path->attached_next_hop.fp_interface))
- {
- path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
- }
-
dpo_set(&path->fp_dpo,
DPO_ADJACENCY,
- fib_proto_to_dpo(path->fp_nh_proto),
+ path->fp_nh_proto,
fib_path_attached_next_hop_get_adj(
path,
- fib_proto_to_link(path->fp_nh_proto)));
+ dpo_proto_to_link(path->fp_nh_proto)));
/*
* become a child of the adjacency so we receive updates
path->fp_sibling = adj_child_add(path->fp_dpo.dpoi_index,
FIB_NODE_TYPE_PATH,
fib_path_get_index(path));
+
+ if (!vnet_sw_interface_is_admin_up(vnet_get_main(),
+ path->attached_next_hop.fp_interface) ||
+ !adj_is_up(path->fp_dpo.dpoi_index))
+ {
+ path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
+ }
+}
+
+static const adj_index_t
+fib_path_attached_get_adj (fib_path_t *path,
+ vnet_link_t link)
+{
+ if (vnet_sw_interface_is_p2p(vnet_get_main(),
+ path->attached.fp_interface))
+ {
+ /*
+ * point-2-point interfaces do not require a glean, since
+ * there is nothing to ARP. Install a rewrite/nbr adj instead
+ */
+ return (adj_nbr_add_or_lock(dpo_proto_to_fib(path->fp_nh_proto),
+ link,
+ &zero_addr,
+ path->attached.fp_interface));
+ }
+ else
+ {
+ return (adj_glean_add_or_lock(dpo_proto_to_fib(path->fp_nh_proto),
+ path->attached.fp_interface,
+ NULL));
+ }
}
/*
if (path->fp_oper_flags & FIB_PATH_OPER_FLAG_RECURSIVE_LOOP)
{
path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
- dpo_copy(&via_dpo, drop_dpo_get(fib_proto_to_dpo(path->fp_nh_proto)));
+ dpo_copy(&via_dpo, drop_dpo_get(path->fp_nh_proto));
}
else if (path->fp_cfg_flags & FIB_PATH_CFG_FLAG_RESOLVE_HOST)
{
if (fib_entry_get_best_source(path->fp_via_fib) >= FIB_SOURCE_RR)
{
path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
- dpo_copy(&via_dpo, drop_dpo_get(fib_proto_to_dpo(path->fp_nh_proto)));
+ dpo_copy(&via_dpo, drop_dpo_get(path->fp_nh_proto));
/*
* PIC edge trigger. let the load-balance maps know
if (!(FIB_ENTRY_FLAG_ATTACHED & fib_entry_get_flags(path->fp_via_fib)))
{
path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
- dpo_copy(&via_dpo, drop_dpo_get(fib_proto_to_dpo(path->fp_nh_proto)));
+ dpo_copy(&via_dpo, drop_dpo_get(path->fp_nh_proto));
/*
* PIC edge trigger. let the load-balance maps know
load_balance_map_path_state_change(fib_path_get_index(path));
}
}
+ /*
+ * check for over-riding factors on the FIB entry itself
+ */
+ if (!fib_entry_is_resolved(path->fp_via_fib))
+ {
+ path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
+ dpo_copy(&via_dpo, drop_dpo_get(path->fp_nh_proto));
+
+ /*
+ * PIC edge trigger. let the load-balance maps know
+ */
+ load_balance_map_path_state_change(fib_path_get_index(path));
+ }
+
+ /*
+ * If this path is contributing a drop, then it's not resolved
+ */
+ if (dpo_is_drop(&via_dpo) || load_balance_is_drop(&via_dpo))
+ {
+ path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
+ }
/*
* update the path's contributed DPO
*/
dpo_copy(dpo, &via_dpo);
- FIB_PATH_DBG(path, "recursive update: %U",
- fib_get_lookup_main(path->fp_nh_proto),
- &path->fp_dpo, 2);
+ FIB_PATH_DBG(path, "recursive update:");
dpo_reset(&via_dpo);
}
}
break;
case FIB_PATH_TYPE_ATTACHED_NEXT_HOP:
- case FIB_PATH_TYPE_ATTACHED:
adj_child_remove(path->fp_dpo.dpoi_index,
path->fp_sibling);
adj_unlock(path->fp_dpo.dpoi_index);
break;
+ case FIB_PATH_TYPE_ATTACHED:
+ if (DPO_PROTO_ETHERNET != path->fp_nh_proto)
+ {
+ adj_child_remove(path->fp_dpo.dpoi_index,
+ path->fp_sibling);
+ adj_unlock(path->fp_dpo.dpoi_index);
+ }
+ break;
case FIB_PATH_TYPE_EXCLUSIVE:
dpo_reset(&path->exclusive.fp_ex_dpo);
break;
case FIB_PATH_TYPE_SPECIAL:
case FIB_PATH_TYPE_RECEIVE:
+ case FIB_PATH_TYPE_INTF_RX:
case FIB_PATH_TYPE_DEAG:
/*
* these hold only the path's DPO, which is reset below.
}
static fib_forward_chain_type_t
-fib_path_proto_to_chain_type (fib_protocol_t proto)
+fib_path_to_chain_type (const fib_path_t *path)
{
- switch (proto)
+ if (DPO_PROTO_MPLS == path->fp_nh_proto)
+ {
+ if (FIB_PATH_TYPE_RECURSIVE == path->fp_type &&
+ MPLS_EOS == path->recursive.fp_nh.fp_eos)
+ {
+ return (FIB_FORW_CHAIN_TYPE_MPLS_EOS);
+ }
+ else
+ {
+ return (FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS);
+ }
+ }
+ else
{
- case FIB_PROTOCOL_IP4:
- return (FIB_FORW_CHAIN_TYPE_UNICAST_IP4);
- case FIB_PROTOCOL_IP6:
- return (FIB_FORW_CHAIN_TYPE_UNICAST_IP6);
- case FIB_PROTOCOL_MPLS:
- return (FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS);
+ return (fib_forw_chain_type_from_dpo_proto(path->fp_nh_proto));
}
- return (FIB_FORW_CHAIN_TYPE_UNICAST_IP4);
}
/*
*/
fib_path_recursive_adj_update(
path,
- fib_path_proto_to_chain_type(path->fp_nh_proto),
+ fib_path_to_chain_type(path),
&path->fp_dpo);
}
if ((FIB_NODE_BW_REASON_FLAG_ADJ_UPDATE & ctx->fnbw_reason) ||
vnet_get_main(),
path->attached_next_hop.fp_interface);
- if (if_is_up)
+ ai = fib_path_attached_next_hop_get_adj(
+ path,
+ dpo_proto_to_link(path->fp_nh_proto));
+
+ path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
+ if (if_is_up && adj_is_up(ai))
{
path->fp_oper_flags |= FIB_PATH_OPER_FLAG_RESOLVED;
}
- ai = fib_path_attached_next_hop_get_adj(
- path,
- fib_proto_to_link(path->fp_nh_proto));
-
- dpo_set(&path->fp_dpo, DPO_ADJACENCY,
- fib_proto_to_dpo(path->fp_nh_proto),
- ai);
+ dpo_set(&path->fp_dpo, DPO_ADJACENCY, path->fp_nh_proto, ai);
adj_unlock(ai);
if (!if_is_up)
path->fp_oper_flags |= FIB_PATH_OPER_FLAG_DROP;
}
break;
+ case FIB_PATH_TYPE_INTF_RX:
+ ASSERT(0);
case FIB_PATH_TYPE_DEAG:
/*
* FIXME When VRF delete is allowed this will need a poke.
cfg_flags |= FIB_PATH_CFG_FLAG_RESOLVE_ATTACHED;
if (rpath->frp_flags & FIB_ROUTE_PATH_LOCAL)
cfg_flags |= FIB_PATH_CFG_FLAG_LOCAL;
+ if (rpath->frp_flags & FIB_ROUTE_PATH_ATTACHED)
+ cfg_flags |= FIB_PATH_CFG_FLAG_ATTACHED;
+ if (rpath->frp_flags & FIB_ROUTE_PATH_INTF_RX)
+ cfg_flags |= FIB_PATH_CFG_FLAG_INTF_RX;
+ if (rpath->frp_flags & FIB_ROUTE_PATH_RPF_ID)
+ cfg_flags |= FIB_PATH_CFG_FLAG_RPF_ID;
+ if (rpath->frp_flags & FIB_ROUTE_PATH_EXCLUSIVE)
+ cfg_flags |= FIB_PATH_CFG_FLAG_EXCLUSIVE;
+ if (rpath->frp_flags & FIB_ROUTE_PATH_DROP)
+ cfg_flags |= FIB_PATH_CFG_FLAG_DROP;
+ if (rpath->frp_flags & FIB_ROUTE_PATH_SOURCE_LOOKUP)
+ cfg_flags |= FIB_PATH_CFG_FLAG_DEAG_SRC;
return (cfg_flags);
}
*/
fib_node_index_t
fib_path_create (fib_node_index_t pl_index,
- fib_protocol_t nh_proto,
- fib_path_cfg_flags_t flags,
const fib_route_path_t *rpath)
{
fib_path_t *path;
dpo_reset(&path->fp_dpo);
path->fp_pl_index = pl_index;
- path->fp_nh_proto = nh_proto;
+ path->fp_nh_proto = rpath->frp_proto;
path->fp_via_fib = FIB_NODE_INDEX_INVALID;
path->fp_weight = rpath->frp_weight;
if (0 == path->fp_weight)
*/
path->fp_weight = 1;
}
- path->fp_cfg_flags = flags;
- path->fp_cfg_flags |= fib_path_route_flags_to_cfg_flags(rpath);
+ path->fp_preference = rpath->frp_preference;
+ path->fp_cfg_flags = fib_path_route_flags_to_cfg_flags(rpath);
/*
* deduce the path's tpye from the parementers and save what is needed.
path->receive.fp_interface = rpath->frp_sw_if_index;
path->receive.fp_addr = rpath->frp_addr;
}
+ else if (path->fp_cfg_flags & FIB_PATH_CFG_FLAG_INTF_RX)
+ {
+ path->fp_type = FIB_PATH_TYPE_INTF_RX;
+ path->intf_rx.fp_interface = rpath->frp_sw_if_index;
+ }
+ else if (path->fp_cfg_flags & FIB_PATH_CFG_FLAG_RPF_ID)
+ {
+ path->fp_type = FIB_PATH_TYPE_DEAG;
+ path->deag.fp_tbl_id = rpath->frp_fib_index;
+ path->deag.fp_rpf_id = rpath->frp_rpf_id;
+ }
else if (~0 != rpath->frp_sw_if_index)
{
if (ip46_address_is_zero(&rpath->frp_addr))
else
{
path->fp_type = FIB_PATH_TYPE_RECURSIVE;
- if (FIB_PROTOCOL_MPLS == path->fp_nh_proto)
+ if (DPO_PROTO_MPLS == path->fp_nh_proto)
{
path->recursive.fp_nh.fp_local_label = rpath->frp_local_label;
+ path->recursive.fp_nh.fp_eos = rpath->frp_eos;
}
else
{
*/
fib_node_index_t
fib_path_create_special (fib_node_index_t pl_index,
- fib_protocol_t nh_proto,
+ dpo_proto_t nh_proto,
fib_path_cfg_flags_t flags,
const dpo_id_t *dpo)
{
path->fp_pl_index = pl_index;
path->fp_weight = 1;
+ path->fp_preference = 0;
path->fp_nh_proto = nh_proto;
path->fp_via_fib = FIB_NODE_INDEX_INVALID;
path->fp_cfg_flags = flags;
/*
* paths of different types and protocol are not equal.
- * different weights only are the same path.
+ * different weights and/or preference only are the same path.
*/
if (path1->fp_type != path2->fp_type)
{
res = ip46_address_cmp(&path1->attached_next_hop.fp_nh,
&path2->attached_next_hop.fp_nh);
if (0 == res) {
- res = vnet_sw_interface_compare(
- vnet_get_main(),
- path1->attached_next_hop.fp_interface,
- path2->attached_next_hop.fp_interface);
+ res = (path1->attached_next_hop.fp_interface -
+ path2->attached_next_hop.fp_interface);
}
break;
case FIB_PATH_TYPE_ATTACHED:
- res = vnet_sw_interface_compare(
- vnet_get_main(),
- path1->attached.fp_interface,
- path2->attached.fp_interface);
+ res = (path1->attached.fp_interface -
+ path2->attached.fp_interface);
break;
case FIB_PATH_TYPE_RECURSIVE:
res = ip46_address_cmp(&path1->recursive.fp_nh,
break;
case FIB_PATH_TYPE_DEAG:
res = (path1->deag.fp_tbl_id - path2->deag.fp_tbl_id);
+ if (0 == res)
+ {
+ res = (path1->deag.fp_rpf_id - path2->deag.fp_rpf_id);
+ }
+ break;
+ case FIB_PATH_TYPE_INTF_RX:
+ res = (path1->intf_rx.fp_interface - path2->intf_rx.fp_interface);
break;
case FIB_PATH_TYPE_SPECIAL:
case FIB_PATH_TYPE_RECEIVE:
path1 = fib_path_get(*pi1);
path2 = fib_path_get(*pi2);
+ /*
+ * when sorting paths we want the highest preference paths
+ * first, so that the choices set built is in prefernce order
+ */
+ if (path1->fp_preference != path2->fp_preference)
+ {
+ return (path1->fp_preference - path2->fp_preference);
+ }
+
return (fib_path_cmp_i(path1, path2));
}
&rpath->frp_addr);
if (0 == res)
{
- res = vnet_sw_interface_compare(
- vnet_get_main(),
- path->attached_next_hop.fp_interface,
- rpath->frp_sw_if_index);
+ res = (path->attached_next_hop.fp_interface -
+ rpath->frp_sw_if_index);
}
break;
case FIB_PATH_TYPE_ATTACHED:
- res = vnet_sw_interface_compare(
- vnet_get_main(),
- path->attached.fp_interface,
- rpath->frp_sw_if_index);
+ res = (path->attached.fp_interface - rpath->frp_sw_if_index);
break;
case FIB_PATH_TYPE_RECURSIVE:
- if (FIB_PROTOCOL_MPLS == path->fp_nh_proto)
+ if (DPO_PROTO_MPLS == path->fp_nh_proto)
{
res = path->recursive.fp_nh.fp_local_label - rpath->frp_local_label;
+
+ if (res == 0)
+ {
+ res = path->recursive.fp_nh.fp_eos - rpath->frp_eos;
+ }
}
else
{
res = (path->recursive.fp_tbl_id - rpath->frp_fib_index);
}
break;
+ case FIB_PATH_TYPE_INTF_RX:
+ res = (path->intf_rx.fp_interface - rpath->frp_sw_if_index);
+ break;
case FIB_PATH_TYPE_DEAG:
res = (path->deag.fp_tbl_id - rpath->frp_fib_index);
- break;
+ if (0 == res)
+ {
+ res = (path->deag.fp_rpf_id - rpath->frp_rpf_id);
+ }
+ break;
case FIB_PATH_TYPE_SPECIAL:
case FIB_PATH_TYPE_RECEIVE:
case FIB_PATH_TYPE_EXCLUSIVE:
FIB_PATH_DBG(path, "recursive loop formed");
path->fp_oper_flags |= FIB_PATH_OPER_FLAG_RECURSIVE_LOOP;
- dpo_copy(&path->fp_dpo,
- drop_dpo_get(fib_proto_to_dpo(path->fp_nh_proto)));
+ dpo_copy(&path->fp_dpo, drop_dpo_get(path->fp_nh_proto));
}
else
{
case FIB_PATH_TYPE_SPECIAL:
case FIB_PATH_TYPE_DEAG:
case FIB_PATH_TYPE_RECEIVE:
+ case FIB_PATH_TYPE_INTF_RX:
case FIB_PATH_TYPE_EXCLUSIVE:
/*
* these path types cannot be part of a loop, since they are the leaves
*/
if (fib_path_is_permanent_drop(path))
{
- dpo_copy(&path->fp_dpo,
- drop_dpo_get(fib_proto_to_dpo(path->fp_nh_proto)));
+ dpo_copy(&path->fp_dpo, drop_dpo_get(path->fp_nh_proto));
path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
return (fib_path_is_resolved(path_index));
}
fib_path_attached_next_hop_set(path);
break;
case FIB_PATH_TYPE_ATTACHED:
- /*
- * path->attached.fp_interface
- */
- if (!vnet_sw_interface_is_admin_up(vnet_get_main(),
- path->attached.fp_interface))
- {
- path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
- }
- if (vnet_sw_interface_is_p2p(vnet_get_main(),
- path->attached.fp_interface))
- {
- /*
- * point-2-point interfaces do not require a glean, since
- * there is nothing to ARP. Install a rewrite/nbr adj instead
- */
- dpo_set(&path->fp_dpo,
- DPO_ADJACENCY,
- fib_proto_to_dpo(path->fp_nh_proto),
- adj_nbr_add_or_lock(
- path->fp_nh_proto,
- fib_proto_to_link(path->fp_nh_proto),
- &zero_addr,
- path->attached.fp_interface));
- }
- else
- {
- dpo_set(&path->fp_dpo,
- DPO_ADJACENCY_GLEAN,
- fib_proto_to_dpo(path->fp_nh_proto),
- adj_glean_add_or_lock(path->fp_nh_proto,
- path->attached.fp_interface,
- NULL));
- }
- /*
- * become a child of the adjacency so we receive updates
- * when the interface state changes
- */
- path->fp_sibling = adj_child_add(path->fp_dpo.dpoi_index,
- FIB_NODE_TYPE_PATH,
- fib_path_get_index(path));
+ if (DPO_PROTO_ETHERNET == path->fp_nh_proto)
+ {
+ l2_bridge_dpo_add_or_lock(path->attached.fp_interface,
+ &path->fp_dpo);
+ }
+ else
+ {
+ /*
+ * path->attached.fp_interface
+ */
+ if (!vnet_sw_interface_is_admin_up(vnet_get_main(),
+ path->attached.fp_interface))
+ {
+ path->fp_oper_flags &= ~FIB_PATH_OPER_FLAG_RESOLVED;
+ }
+ dpo_set(&path->fp_dpo,
+ DPO_ADJACENCY,
+ path->fp_nh_proto,
+ fib_path_attached_get_adj(path,
+ dpo_proto_to_link(path->fp_nh_proto)));
+ /*
+ * become a child of the adjacency so we receive updates
+ * when the interface state changes
+ */
+ path->fp_sibling = adj_child_add(path->fp_dpo.dpoi_index,
+ FIB_NODE_TYPE_PATH,
+ fib_path_get_index(path));
+ }
break;
case FIB_PATH_TYPE_RECURSIVE:
{
ASSERT(FIB_NODE_INDEX_INVALID == path->fp_via_fib);
- if (FIB_PROTOCOL_MPLS == path->fp_nh_proto)
+ if (DPO_PROTO_MPLS == path->fp_nh_proto)
{
- fib_prefix_from_mpls_label(path->recursive.fp_nh.fp_local_label, &pfx);
+ fib_prefix_from_mpls_label(path->recursive.fp_nh.fp_local_label,
+ path->recursive.fp_nh.fp_eos,
+ &pfx);
}
else
{
fei = fib_table_entry_special_add(path->recursive.fp_tbl_id,
&pfx,
FIB_SOURCE_RR,
- FIB_ENTRY_FLAG_NONE,
- ADJ_INDEX_INVALID);
+ FIB_ENTRY_FLAG_NONE);
path = fib_path_get(path_index);
path->fp_via_fib = fei;
*/
fib_path_recursive_adj_update(
path,
- fib_path_proto_to_chain_type(path->fp_nh_proto),
+ fib_path_to_chain_type(path),
&path->fp_dpo);
break;
/*
* Resolve via the drop
*/
- dpo_copy(&path->fp_dpo,
- drop_dpo_get(fib_proto_to_dpo(path->fp_nh_proto)));
+ dpo_copy(&path->fp_dpo, drop_dpo_get(path->fp_nh_proto));
break;
case FIB_PATH_TYPE_DEAG:
+ {
/*
* Resolve via a lookup DPO.
* FIXME. control plane should add routes with a table ID
*/
- lookup_dpo_add_or_lock_w_fib_index(path->deag.fp_tbl_id,
- fib_proto_to_dpo(path->fp_nh_proto),
- LOOKUP_INPUT_DST_ADDR,
- LOOKUP_TABLE_FROM_CONFIG,
- &path->fp_dpo);
+ lookup_input_t input;
+ lookup_cast_t cast;
+
+ cast = (path->fp_cfg_flags & FIB_PATH_CFG_FLAG_RPF_ID ?
+ LOOKUP_MULTICAST :
+ LOOKUP_UNICAST);
+ input = (path->fp_cfg_flags & FIB_PATH_CFG_FLAG_DEAG_SRC ?
+ LOOKUP_INPUT_SRC_ADDR :
+ LOOKUP_INPUT_DST_ADDR);
+
+ lookup_dpo_add_or_lock_w_fib_index(path->deag.fp_tbl_id,
+ path->fp_nh_proto,
+ cast,
+ input,
+ LOOKUP_TABLE_FROM_CONFIG,
+ &path->fp_dpo);
break;
+ }
case FIB_PATH_TYPE_RECEIVE:
/*
* Resolve via a receive DPO.
*/
- receive_dpo_add_or_lock(fib_proto_to_dpo(path->fp_nh_proto),
+ receive_dpo_add_or_lock(path->fp_nh_proto,
path->receive.fp_interface,
&path->receive.fp_addr,
&path->fp_dpo);
break;
+ case FIB_PATH_TYPE_INTF_RX: {
+ /*
+ * Resolve via a receive DPO.
+ */
+ interface_rx_dpo_add_or_lock(path->fp_nh_proto,
+ path->intf_rx.fp_interface,
+ &path->fp_dpo);
+ break;
+ }
case FIB_PATH_TYPE_EXCLUSIVE:
/*
* Resolve via the user provided DPO
case FIB_PATH_TYPE_RECEIVE:
return (path->receive.fp_interface);
case FIB_PATH_TYPE_RECURSIVE:
- return (fib_entry_get_resolving_interface(path->fp_via_fib));
+ if (fib_path_is_resolved(path_index))
+ {
+ return (fib_entry_get_resolving_interface(path->fp_via_fib));
+ }
+ break;
+ case FIB_PATH_TYPE_INTF_RX:
case FIB_PATH_TYPE_SPECIAL:
case FIB_PATH_TYPE_DEAG:
case FIB_PATH_TYPE_EXCLUSIVE:
return (ADJ_INDEX_INVALID);
}
-int
+u16
fib_path_get_weight (fib_node_index_t path_index)
{
fib_path_t *path;
return (path->fp_weight);
}
+u16
+fib_path_get_preference (fib_node_index_t path_index)
+{
+ fib_path_t *path;
+
+ path = fib_path_get(path_index);
+
+ ASSERT(path);
+
+ return (path->fp_preference);
+}
+
/**
* @brief Contribute the path's adjacency to the list passed.
* By calling this function over all paths, recursively, a child
{
fib_path_t *path;
- if (!fib_path_is_resolved(path_index))
- return;
-
path = fib_path_get(path_index);
+ /*
+ * resolved and unresolved paths contribute to the RPF list.
+ */
switch (path->fp_type)
{
case FIB_PATH_TYPE_ATTACHED_NEXT_HOP:
break;
case FIB_PATH_TYPE_RECURSIVE:
- fib_entry_contribute_urpf(path->fp_via_fib, urpf);
+ if (FIB_NODE_INDEX_INVALID != path->fp_via_fib &&
+ !fib_path_is_looped(path_index))
+ {
+ /*
+ * there's unresolved due to constraints, and there's unresolved
+ * due to ain't got no via. can't do nowt w'out via.
+ */
+ fib_entry_contribute_urpf(path->fp_via_fib, urpf);
+ }
break;
case FIB_PATH_TYPE_EXCLUSIVE:
case FIB_PATH_TYPE_DEAG:
case FIB_PATH_TYPE_RECEIVE:
+ case FIB_PATH_TYPE_INTF_RX:
/*
* these path types don't link to an adj
*/
}
}
+void
+fib_path_stack_mpls_disp (fib_node_index_t path_index,
+ dpo_proto_t payload_proto,
+ dpo_id_t *dpo)
+{
+ fib_path_t *path;
+
+ path = fib_path_get(path_index);
+
+ ASSERT(path);
+
+ switch (path->fp_type)
+ {
+ case FIB_PATH_TYPE_DEAG:
+ {
+ dpo_id_t tmp = DPO_INVALID;
+
+ dpo_copy(&tmp, dpo);
+ dpo_set(dpo,
+ DPO_MPLS_DISPOSITION,
+ payload_proto,
+ mpls_disp_dpo_create(payload_proto,
+ path->deag.fp_rpf_id,
+ &tmp));
+ dpo_reset(&tmp);
+ break;
+ }
+ case FIB_PATH_TYPE_RECEIVE:
+ case FIB_PATH_TYPE_ATTACHED:
+ case FIB_PATH_TYPE_ATTACHED_NEXT_HOP:
+ case FIB_PATH_TYPE_RECURSIVE:
+ case FIB_PATH_TYPE_INTF_RX:
+ case FIB_PATH_TYPE_EXCLUSIVE:
+ case FIB_PATH_TYPE_SPECIAL:
+ break;
+ }
+}
+
void
fib_path_contribute_forwarding (fib_node_index_t path_index,
fib_forward_chain_type_t fct,
* This then represents the path's 'native' protocol; IP.
* For all others will need to go find something else.
*/
- if (fib_path_proto_to_chain_type(path->fp_nh_proto) == fct)
+ if (fib_path_to_chain_type(path) == fct)
{
dpo_copy(dpo, &path->fp_dpo);
}
case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
case FIB_FORW_CHAIN_TYPE_ETHERNET:
+ case FIB_FORW_CHAIN_TYPE_NSH:
{
adj_index_t ai;
case FIB_FORW_CHAIN_TYPE_UNICAST_IP4:
case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
- fib_path_recursive_adj_update(path, fct, dpo);
- break;
case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
case FIB_FORW_CHAIN_TYPE_MCAST_IP6:
+ fib_path_recursive_adj_update(path, fct, dpo);
+ break;
case FIB_FORW_CHAIN_TYPE_ETHERNET:
+ case FIB_FORW_CHAIN_TYPE_NSH:
ASSERT(0);
break;
}
case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
lookup_dpo_add_or_lock_w_table_id(MPLS_FIB_DEFAULT_TABLE_ID,
DPO_PROTO_MPLS,
+ LOOKUP_UNICAST,
LOOKUP_INPUT_DST_ADDR,
LOOKUP_TABLE_FROM_CONFIG,
dpo);
break;
+ case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
case FIB_FORW_CHAIN_TYPE_UNICAST_IP4:
case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
- case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
dpo_copy(dpo, &path->fp_dpo);
break;
case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
case FIB_FORW_CHAIN_TYPE_MCAST_IP6:
case FIB_FORW_CHAIN_TYPE_ETHERNET:
+ case FIB_FORW_CHAIN_TYPE_NSH:
ASSERT(0);
break;
}
dpo_copy(dpo, &path->exclusive.fp_ex_dpo);
break;
case FIB_PATH_TYPE_ATTACHED:
+ if (DPO_PROTO_ETHERNET == path->fp_nh_proto)
+ {
+ dpo_copy(dpo, &path->fp_dpo);
+ break;
+ }
switch (fct)
{
case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
case FIB_FORW_CHAIN_TYPE_ETHERNET:
- break;
+ case FIB_FORW_CHAIN_TYPE_NSH:
+ {
+ adj_index_t ai;
+
+ /*
+ * get a appropriate link type adj.
+ */
+ ai = fib_path_attached_get_adj(
+ path,
+ fib_forw_chain_type_to_link_type(fct));
+ dpo_set(dpo, DPO_ADJACENCY,
+ fib_forw_chain_type_to_dpo_proto(fct), ai);
+ adj_unlock(ai);
+ break;
+ }
case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
case FIB_FORW_CHAIN_TYPE_MCAST_IP6:
{
/*
* Create the adj needed for sending IP multicast traffic
*/
- ai = adj_mcast_add_or_lock(path->fp_nh_proto,
+ ai = adj_mcast_add_or_lock(dpo_proto_to_fib(path->fp_nh_proto),
fib_forw_chain_type_to_link_type(fct),
path->attached.fp_interface);
- dpo_set(dpo, DPO_ADJACENCY_MCAST,
+ dpo_set(dpo, DPO_ADJACENCY,
fib_forw_chain_type_to_dpo_proto(fct),
ai);
adj_unlock(ai);
break;
}
break;
+ case FIB_PATH_TYPE_INTF_RX:
+ /*
+ * Create the adj needed for sending IP multicast traffic
+ */
+ interface_rx_dpo_add_or_lock(fib_forw_chain_type_to_dpo_proto(fct),
+ path->attached.fp_interface,
+ dpo);
+ break;
case FIB_PATH_TYPE_RECEIVE:
case FIB_PATH_TYPE_SPECIAL:
dpo_copy(dpo, &path->fp_dpo);
}
int
-fib_path_is_recursive (fib_node_index_t path_index)
+fib_path_is_recursive_constrained (fib_node_index_t path_index)
{
fib_path_t *path;
path = fib_path_get(path_index);
- return (FIB_PATH_TYPE_RECURSIVE == path->fp_type);
+ return ((FIB_PATH_TYPE_RECURSIVE == path->fp_type) &&
+ ((path->fp_cfg_flags & FIB_PATH_CFG_FLAG_RESOLVE_ATTACHED) ||
+ (path->fp_cfg_flags & FIB_PATH_CFG_FLAG_RESOLVE_HOST)));
}
int
return (path->fp_oper_flags & FIB_PATH_OPER_FLAG_RECURSIVE_LOOP);
}
-int
+fib_path_list_walk_rc_t
fib_path_encode (fib_node_index_t path_list_index,
fib_node_index_t path_index,
void *ctx)
path = fib_path_get(path_index);
if (!path)
- return (0);
+ return (FIB_PATH_LIST_WALK_CONTINUE);
vec_add2(*api_rpaths, api_rpath, 1);
api_rpath->rpath.frp_weight = path->fp_weight;
+ api_rpath->rpath.frp_preference = path->fp_preference;
api_rpath->rpath.frp_proto = path->fp_nh_proto;
api_rpath->rpath.frp_sw_if_index = ~0;
api_rpath->dpo = path->exclusive.fp_ex_dpo;
case FIB_PATH_TYPE_RECEIVE:
api_rpath->rpath.frp_addr = path->receive.fp_addr;
api_rpath->rpath.frp_sw_if_index = path->receive.fp_interface;
+ api_rpath->dpo = path->fp_dpo;
break;
case FIB_PATH_TYPE_ATTACHED:
api_rpath->rpath.frp_sw_if_index = path->attached.fp_interface;
+ api_rpath->dpo = path->fp_dpo;
break;
case FIB_PATH_TYPE_ATTACHED_NEXT_HOP:
api_rpath->rpath.frp_sw_if_index = path->attached_next_hop.fp_interface;
case FIB_PATH_TYPE_SPECIAL:
break;
case FIB_PATH_TYPE_DEAG:
+ api_rpath->rpath.frp_fib_index = path->deag.fp_tbl_id;
+ api_rpath->dpo = path->fp_dpo;
break;
case FIB_PATH_TYPE_RECURSIVE:
api_rpath->rpath.frp_addr = path->recursive.fp_nh.fp_ip;
default:
break;
}
- return (1);
+ return (FIB_PATH_LIST_WALK_CONTINUE);
}
-fib_protocol_t
+dpo_proto_t
fib_path_get_proto (fib_node_index_t path_index)
{
fib_path_t *path;