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authorNeale Ranns <nranns@cisco.com>2017-10-13 05:15:07 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2017-10-14 09:11:42 +0000
commit054c03ac9c20a5e38121590b83f01fd91f82acf0 (patch)
tree93ec5f8d85defb3e58d12fdca917a68000dbe6d3 /src/vnet/fib
parentd77275307b6ad6459ecba01912a302fb7dbf0f02 (diff)
Source Lookup progammable via API
Change-Id: I5d5d4f22b6369d504455a644f73076d772fbcfb4 Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src/vnet/fib')
-rw-r--r--src/vnet/fib/fib_api.h1
-rw-r--r--src/vnet/fib/fib_path.c10
-rw-r--r--src/vnet/fib/fib_path.h11
-rw-r--r--src/vnet/fib/fib_test.c43
-rw-r--r--src/vnet/fib/fib_types.h4
5 files changed, 61 insertions, 8 deletions
diff --git a/src/vnet/fib/fib_api.h b/src/vnet/fib/fib_api.h
index c369e8f8588..e5b94e14124 100644
--- a/src/vnet/fib/fib_api.h
+++ b/src/vnet/fib/fib_api.h
@@ -41,6 +41,7 @@ add_del_route_t_handler (u8 is_multipath,
u8 is_interface_rx,
u8 is_rpf_id,
u8 is_l2_bridged,
+ u8 is_source_lookup,
u32 fib_index,
const fib_prefix_t * prefix,
dpo_proto_t next_hop_proto,
diff --git a/src/vnet/fib/fib_path.c b/src/vnet/fib/fib_path.c
index 889d17def9c..7b713a4b5c5 100644
--- a/src/vnet/fib/fib_path.c
+++ b/src/vnet/fib/fib_path.c
@@ -1054,6 +1054,8 @@ fib_path_route_flags_to_cfg_flags (const fib_route_path_t *rpath)
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);
}
@@ -1695,16 +1697,20 @@ fib_path_resolve (fib_node_index_t path_index)
* Resolve via a lookup DPO.
* FIXME. control plane should add routes with a table ID
*/
+ 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,
- LOOKUP_INPUT_DST_ADDR,
+ input,
LOOKUP_TABLE_FROM_CONFIG,
&path->fp_dpo);
break;
diff --git a/src/vnet/fib/fib_path.h b/src/vnet/fib/fib_path.h
index f986e437a3b..3a0544c1c42 100644
--- a/src/vnet/fib/fib_path.h
+++ b/src/vnet/fib/fib_path.h
@@ -79,14 +79,13 @@ typedef enum fib_path_cfg_attribute_t_ {
*/
FIB_PATH_CFG_ATTRIBUTE_LOCAL,
/**
- * The path is L2. i.e. the parameters therein are to be interpreted as
- * pertaining to L2 config.
+ * The deag path does a source lookup
*/
- FIB_PATH_CFG_ATTRIBUTE_L2,
+ FIB_PATH_CFG_ATTRIBUTE_DEAG_SRC,
/**
* Marker. Add new types before this one, then update it.
*/
- FIB_PATH_CFG_ATTRIBUTE_LAST = FIB_PATH_CFG_ATTRIBUTE_LOCAL,
+ FIB_PATH_CFG_ATTRIBUTE_LAST = FIB_PATH_CFG_ATTRIBUTE_DEAG_SRC,
} __attribute__ ((packed)) fib_path_cfg_attribute_t;
/**
@@ -103,7 +102,7 @@ typedef enum fib_path_cfg_attribute_t_ {
[FIB_PATH_CFG_ATTRIBUTE_ATTACHED] = "attached", \
[FIB_PATH_CFG_ATTRIBUTE_INTF_RX] = "interface-rx", \
[FIB_PATH_CFG_ATTRIBUTE_RPF_ID] = "rpf-id", \
- [FIB_PATH_CFG_ATTRIBUTE_L2] = "l2", \
+ [FIB_PATH_CFG_ATTRIBUTE_DEAG_SRC] = "deag-src", \
}
#define FOR_EACH_FIB_PATH_CFG_ATTRIBUTE(_item) \
@@ -124,7 +123,7 @@ typedef enum fib_path_cfg_flags_t_ {
FIB_PATH_CFG_FLAG_ATTACHED = (1 << FIB_PATH_CFG_ATTRIBUTE_ATTACHED),
FIB_PATH_CFG_FLAG_INTF_RX = (1 << FIB_PATH_CFG_ATTRIBUTE_INTF_RX),
FIB_PATH_CFG_FLAG_RPF_ID = (1 << FIB_PATH_CFG_ATTRIBUTE_RPF_ID),
- FIB_PATH_CFG_FLAG_L2 = (1 << FIB_PATH_CFG_ATTRIBUTE_L2),
+ FIB_PATH_CFG_FLAG_DEAG_SRC = (1 << FIB_PATH_CFG_ATTRIBUTE_DEAG_SRC),
} __attribute__ ((packed)) fib_path_cfg_flags_t;
diff --git a/src/vnet/fib/fib_test.c b/src/vnet/fib/fib_test.c
index 03c9ee75f48..da517b0ceea 100644
--- a/src/vnet/fib/fib_test.c
+++ b/src/vnet/fib/fib_test.c
@@ -3543,6 +3543,49 @@ fib_test_v4 (void)
"4.4.4.4/32 is deag in %d %U",
lkd->lkd_fib_index,
format_dpo_id, dpo, 0);
+ FIB_TEST((LOOKUP_INPUT_DST_ADDR == lkd->lkd_input),
+ "4.4.4.4/32 is source deag in %d %U",
+ lkd->lkd_input,
+ format_dpo_id, dpo, 0);
+
+ fib_table_entry_delete(fib_index,
+ &pfx_4_4_4_4_s_32,
+ FIB_SOURCE_API);
+ FIB_TEST(FIB_NODE_INDEX_INVALID ==
+ fib_table_lookup_exact_match(fib_index, &pfx_4_4_4_4_s_32),
+ "4.4.4.4/32 removed");
+ vec_free(r_paths);
+
+ /*
+ * A route deag route in a source lookup table
+ */
+ fib_table_entry_path_add(fib_index,
+ &pfx_4_4_4_4_s_32,
+ FIB_SOURCE_API,
+ FIB_ENTRY_FLAG_NONE,
+ DPO_PROTO_IP4,
+ &zero_addr,
+ ~0,
+ fib_index,
+ 1,
+ NULL,
+ FIB_ROUTE_PATH_SOURCE_LOOKUP);
+
+ fei = fib_table_lookup_exact_match(fib_index, &pfx_4_4_4_4_s_32);
+ FIB_TEST((FIB_NODE_INDEX_INVALID != fei), "4.4.4.4/32 present");
+
+ dpo = fib_entry_contribute_ip_forwarding(fei);
+ dpo = load_balance_get_bucket(dpo->dpoi_index, 0);
+ lkd = lookup_dpo_get(dpo->dpoi_index);
+
+ FIB_TEST((fib_index == lkd->lkd_fib_index),
+ "4.4.4.4/32 is deag in %d %U",
+ lkd->lkd_fib_index,
+ format_dpo_id, dpo, 0);
+ FIB_TEST((LOOKUP_INPUT_SRC_ADDR == lkd->lkd_input),
+ "4.4.4.4/32 is source deag in %d %U",
+ lkd->lkd_input,
+ format_dpo_id, dpo, 0);
fib_table_entry_delete(fib_index,
&pfx_4_4_4_4_s_32,
diff --git a/src/vnet/fib/fib_types.h b/src/vnet/fib/fib_types.h
index b5d4ec95911..7eadbb9bb70 100644
--- a/src/vnet/fib/fib_types.h
+++ b/src/vnet/fib/fib_types.h
@@ -303,6 +303,10 @@ typedef enum fib_route_path_flags_t_
* A local path with a RPF-ID => multicast traffic
*/
FIB_ROUTE_PATH_RPF_ID = (1 << 7),
+ /**
+ * A deag path using the packet's source not destination address.
+ */
+ FIB_ROUTE_PATH_SOURCE_LOOKUP = (1 << 8),
} fib_route_path_flags_t;
/**