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authorNeale Ranns <nranns@cisco.com>2018-11-21 05:44:35 -0800
committerNeale Ranns <nranns@cisco.com>2018-11-29 12:36:30 +0000
commitb6a47953973f7c94239c394b649100e91bdb2152 (patch)
treec78645ca5abb40e44b7ccd5d344bfc1059281686 /src/plugins/gbp/gbp_subnet.c
parentd40c3e652d487f0f165d5e595864c4ccd464de3b (diff)
GBP: l3-out subnets
Change-Id: Id4a20066fc5be716c61a497dfcb4d00dc1dbb28d Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/plugins/gbp/gbp_subnet.c')
-rw-r--r--src/plugins/gbp/gbp_subnet.c97
1 files changed, 67 insertions, 30 deletions
diff --git a/src/plugins/gbp/gbp_subnet.c b/src/plugins/gbp/gbp_subnet.c
index d9d42997aa7..b0b6db8040e 100644
--- a/src/plugins/gbp/gbp_subnet.c
+++ b/src/plugins/gbp/gbp_subnet.c
@@ -46,7 +46,13 @@ typedef struct gbp_subnet_t_
epg_id_t gs_epg;
u32 gs_sw_if_index;
} gs_stitched_external;
+ struct
+ {
+ epg_id_t gs_epg;
+ } gs_l3_out;
};
+
+ fib_node_index_t gs_fei;
} gbp_subnet_t;
/**
@@ -102,7 +108,7 @@ gbp_subnet_db_del (gbp_subnet_t * gs)
static int
-gbp_subnet_transport_add (const gbp_subnet_t * gs)
+gbp_subnet_transport_add (gbp_subnet_t * gs)
{
dpo_id_t gfd = DPO_INVALID;
gbp_route_domain_t *grd;
@@ -111,14 +117,15 @@ gbp_subnet_transport_add (const gbp_subnet_t * gs)
fproto = gs->gs_key->gsk_pfx.fp_proto;
grd = gbp_route_domain_get (gs->gs_rd);
- fib_table_entry_update_one_path (gs->gs_key->gsk_fib_index,
- &gs->gs_key->gsk_pfx,
- FIB_SOURCE_PLUGIN_HI,
- FIB_ENTRY_FLAG_NONE,
- fib_proto_to_dpo (fproto),
- &ADJ_BCAST_ADDR,
- grd->grd_uu_sw_if_index[fproto],
- ~0, 1, NULL, FIB_ROUTE_PATH_FLAG_NONE);
+ gs->gs_fei = fib_table_entry_update_one_path (gs->gs_key->gsk_fib_index,
+ &gs->gs_key->gsk_pfx,
+ FIB_SOURCE_PLUGIN_HI,
+ FIB_ENTRY_FLAG_NONE,
+ fib_proto_to_dpo (fproto),
+ &ADJ_BCAST_ADDR,
+ grd->grd_uu_sw_if_index
+ [fproto], ~0, 1, NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
dpo_reset (&gfd);
@@ -126,17 +133,18 @@ gbp_subnet_transport_add (const gbp_subnet_t * gs)
}
static int
-gbp_subnet_internal_add (const gbp_subnet_t * gs)
+gbp_subnet_internal_add (gbp_subnet_t * gs)
{
dpo_id_t gfd = DPO_INVALID;
gbp_fwd_dpo_add_or_lock (fib_proto_to_dpo (gs->gs_key->gsk_pfx.fp_proto),
&gfd);
- fib_table_entry_special_dpo_update (gs->gs_key->gsk_fib_index,
- &gs->gs_key->gsk_pfx,
- FIB_SOURCE_PLUGIN_HI,
- FIB_ENTRY_FLAG_EXCLUSIVE, &gfd);
+ gs->gs_fei = fib_table_entry_special_dpo_update (gs->gs_key->gsk_fib_index,
+ &gs->gs_key->gsk_pfx,
+ FIB_SOURCE_PLUGIN_HI,
+ FIB_ENTRY_FLAG_EXCLUSIVE,
+ &gfd);
dpo_reset (&gfd);
@@ -155,12 +163,33 @@ gbp_subnet_external_add (gbp_subnet_t * gs, u32 sw_if_index, epg_id_t epg)
gs->gs_stitched_external.gs_epg,
gs->gs_stitched_external.gs_sw_if_index, &gpd);
- fib_table_entry_special_dpo_update (gs->gs_key->gsk_fib_index,
- &gs->gs_key->gsk_pfx,
- FIB_SOURCE_PLUGIN_HI,
- (FIB_ENTRY_FLAG_EXCLUSIVE |
- FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT),
- &gpd);
+ gs->gs_fei = fib_table_entry_special_dpo_update (gs->gs_key->gsk_fib_index,
+ &gs->gs_key->gsk_pfx,
+ FIB_SOURCE_PLUGIN_HI,
+ (FIB_ENTRY_FLAG_EXCLUSIVE |
+ FIB_ENTRY_FLAG_LOOSE_URPF_EXEMPT),
+ &gpd);
+
+ dpo_reset (&gpd);
+
+ return (0);
+}
+
+static int
+gbp_subnet_l3_out_add (gbp_subnet_t * gs, u32 sw_if_index, epg_id_t epg)
+{
+ dpo_id_t gpd = DPO_INVALID;
+
+ gs->gs_l3_out.gs_epg = epg;
+
+ gbp_policy_dpo_add_or_lock (fib_proto_to_dpo (gs->gs_key->gsk_pfx.fp_proto),
+ gs->gs_l3_out.gs_epg, ~0, &gpd);
+
+ gs->gs_fei = fib_table_entry_special_dpo_add (gs->gs_key->gsk_fib_index,
+ &gs->gs_key->gsk_pfx,
+ FIB_SOURCE_SPECIAL,
+ FIB_ENTRY_FLAG_INTERPOSE,
+ &gpd);
dpo_reset (&gpd);
@@ -190,7 +219,10 @@ gbp_subnet_del (u32 rd_id, const fib_prefix_t * pfx)
gs = pool_elt_at_index (gbp_subnet_pool, gsi);
- fib_table_entry_delete (fib_index, pfx, FIB_SOURCE_PLUGIN_HI);
+ if (GBP_SUBNET_L3_OUT == gs->gs_type)
+ fib_table_entry_delete (fib_index, pfx, FIB_SOURCE_SPECIAL);
+ else
+ fib_table_entry_delete (fib_index, pfx, FIB_SOURCE_PLUGIN_HI);
gbp_subnet_db_del (gs);
gbp_route_domain_unlock (gs->gs_rd);
@@ -243,6 +275,9 @@ gbp_subnet_add (u32 rd_id,
case GBP_SUBNET_TRANSPORT:
rv = gbp_subnet_transport_add (gs);
break;
+ case GBP_SUBNET_L3_OUT:
+ rv = gbp_subnet_l3_out_add (gs, sw_if_index, epg);
+ break;
}
return (rv);
@@ -274,10 +309,13 @@ gbp_subnet_walk (gbp_subnet_cb_t cb, void *ctx)
sw_if_index = gs->gs_stitched_external.gs_sw_if_index;
epg = gs->gs_stitched_external.gs_epg;
break;
+ case GBP_SUBNET_L3_OUT:
+ epg = gs->gs_l3_out.gs_epg;
+ break;
}
if (WALK_STOP == cb (grd->grd_id, &gs->gs_key->gsk_pfx,
- gs->gs_type, epg, sw_if_index, ctx))
+ gs->gs_type, sw_if_index, epg, ctx))
break;
}));
/* *INDENT-ON* */
@@ -302,6 +340,8 @@ format_gbp_subnet_type (u8 * s, va_list * args)
return (format (s, "stitched-external"));
case GBP_SUBNET_TRANSPORT:
return (format (s, "transport"));
+ case GBP_SUBNET_L3_OUT:
+ return (format (s, "l3-out"));
}
return (format (s, "unknown"));
@@ -334,20 +374,17 @@ format_gbp_subnet (u8 * s, va_list * args)
format_vnet_sw_if_index_name,
vnet_get_main (), gs->gs_stitched_external.gs_sw_if_index);
break;
+ case GBP_SUBNET_L3_OUT:
+ s = format (s, " {epg:%d}", gs->gs_l3_out.gs_epg);
+ break;
}
switch (flags)
{
case GBP_SUBNET_SHOW_DETAILS:
{
- fib_node_index_t fei;
-
- fei = fib_table_lookup_exact_match (gs->gs_key->gsk_fib_index,
- &gs->gs_key->gsk_pfx);
-
- s =
- format (s, "\n %U", format_fib_entry, fei,
- FIB_ENTRY_FORMAT_DETAIL);
+ s = format (s, "\n %U", format_fib_entry, gs->gs_fei,
+ FIB_ENTRY_FORMAT_DETAIL);
}
case GBP_SUBNET_SHOW_BRIEF:
break;