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authorNeale Ranns <neale.ranns@cisco.com>2018-05-01 05:17:55 -0700
committerOle Trøan <otroan@employees.org>2019-06-18 13:31:39 +0000
commit097fa66b986f06281f603767d321ab13ab6c88c3 (patch)
treeed052819615d08ee4bd0afbc34de7e64e4598105 /src/plugins/unittest/mfib_test.c
parent39baa32186fd3e4b20d9f58afbbfe7b8daebed62 (diff)
fib: fib api updates
Enhance the route add/del APIs to take a set of paths rather than just one. Most unicast routing protocols calcualte all the available paths in one run of the algorithm so updating all the paths at once is beneficial for the client. two knobs control the behaviour: is_multipath - if set the the set of paths passed will be added to those that already exist, otherwise the set will replace them. is_add - add or remove the set is_add=0, is_multipath=1 and an empty set, results in deleting the route. It is also considerably faster to add multiple paths at once, than one at a time: vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.11 100000 routes in .572240 secs, 174751.80 routes/sec vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.12 100000 routes in .528383 secs, 189256.54 routes/sec vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.13 100000 routes in .757131 secs, 132077.52 routes/sec vat# ip_add_del_route 1.1.1.1/32 count 100000 multipath via 10.10.10.14 100000 routes in .878317 secs, 113854.12 routes/sec vat# ip_route_add_del 1.1.1.1/32 count 100000 multipath via 10.10.10.11 via 10.10.10.12 via 10.10.10.13 via 10.10.10.14 100000 routes in .900212 secs, 111084.93 routes/sec Change-Id: I416b93f7684745099c1adb0b33edac58c9339c1a Signed-off-by: Neale Ranns <neale.ranns@cisco.com> Signed-off-by: Ole Troan <ot@cisco.com> Signed-off-by: Paul Vinciguerra <pvinci@vinciconsulting.com>
Diffstat (limited to 'src/plugins/unittest/mfib_test.c')
-rw-r--r--src/plugins/unittest/mfib_test.c227
1 files changed, 114 insertions, 113 deletions
diff --git a/src/plugins/unittest/mfib_test.c b/src/plugins/unittest/mfib_test.c
index 0707a6f57c8..2497a299c50 100644
--- a/src/plugins/unittest/mfib_test.c
+++ b/src/plugins/unittest/mfib_test.c
@@ -233,7 +233,7 @@ mfib_test_entry (fib_node_index_t fei,
MFIB_TEST_REP((eflags == mfe->mfe_flags),
"%U has %U expect %U",
- format_mfib_prefix, &pfx,
+ format_mfib_prefix, pfx,
format_mfib_entry_flags, mfe->mfe_flags,
format_mfib_entry_flags, eflags);
@@ -241,7 +241,7 @@ mfib_test_entry (fib_node_index_t fei,
{
MFIB_TEST_REP((DPO_DROP == mfe->mfe_rep.dpoi_type),
"%U links to %U",
- format_mfib_prefix, &pfx,
+ format_mfib_prefix, pfx,
format_dpo_id, &mfe->mfe_rep, 0);
}
else
@@ -257,7 +257,7 @@ mfib_test_entry (fib_node_index_t fei,
MFIB_TEST_REP((DPO_REPLICATE == tmp.dpoi_type),
"%U links to %U",
- format_mfib_prefix, &pfx,
+ format_mfib_prefix, pfx,
format_dpo_type, tmp.dpoi_type);
va_start(ap, n_buckets);
@@ -288,11 +288,11 @@ mfib_test_entry_itf (fib_node_index_t fei,
MFIB_TEST_REP((NULL != mfi),
"%U has interface %d",
- format_mfib_prefix, &pfx, sw_if_index);
+ format_mfib_prefix, pfx, sw_if_index);
MFIB_TEST_REP((flags == mfi->mfi_flags),
"%U interface %d has flags %U expect %U",
- format_mfib_prefix, &pfx, sw_if_index,
+ format_mfib_prefix, pfx, sw_if_index,
format_mfib_itf_flags, flags,
format_mfib_itf_flags, mfi->mfi_flags);
@@ -408,15 +408,15 @@ mfib_test_i (fib_protocol_t PROTO,
.frp_addr = zero_addr,
.frp_sw_if_index = tm->hw[0]->sw_if_index,
.frp_fib_index = ~0,
- .frp_weight = 0,
+ .frp_weight = 1,
.frp_flags = 0,
+ .frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT,
};
mfib_table_entry_path_update(fib_index,
pfx_no_forward,
MFIB_SOURCE_API,
- &path_via_if0,
- MFIB_ITF_FLAG_ACCEPT);
+ &path_via_if0);
mfei_no_f = mfib_table_lookup_exact_match(fib_index, pfx_no_forward);
MFIB_TEST(!mfib_test_entry(mfei_no_f,
@@ -424,41 +424,42 @@ mfib_test_i (fib_protocol_t PROTO,
0),
"%U no replcaitions",
format_mfib_prefix, pfx_no_forward);
- MFIB_TEST_NS(!mfib_test_entry_itf(mfei_no_f, tm->hw[0]->sw_if_index,
- MFIB_ITF_FLAG_ACCEPT));
+ MFIB_TEST(!mfib_test_entry_itf(mfei_no_f, tm->hw[0]->sw_if_index,
+ MFIB_ITF_FLAG_ACCEPT),
+ "%U interface not accepting",
+ format_mfib_prefix, pfx_no_forward);
fib_route_path_t path_via_if1 = {
.frp_proto = fib_proto_to_dpo(PROTO),
.frp_addr = zero_addr,
.frp_sw_if_index = tm->hw[1]->sw_if_index,
.frp_fib_index = ~0,
- .frp_weight = 0,
+ .frp_weight = 1,
.frp_flags = 0,
+ .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
};
fib_route_path_t path_via_if2 = {
.frp_proto = fib_proto_to_dpo(PROTO),
.frp_addr = zero_addr,
.frp_sw_if_index = tm->hw[2]->sw_if_index,
.frp_fib_index = ~0,
- .frp_weight = 0,
+ .frp_weight = 1,
.frp_flags = 0,
+ .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
};
fib_route_path_t path_via_if3 = {
.frp_proto = fib_proto_to_dpo(PROTO),
.frp_addr = zero_addr,
.frp_sw_if_index = tm->hw[3]->sw_if_index,
.frp_fib_index = ~0,
- .frp_weight = 0,
+ .frp_weight = 1,
.frp_flags = 0,
+ .frp_mitf_flags = (MFIB_ITF_FLAG_FORWARD |
+ MFIB_ITF_FLAG_NEGATE_SIGNAL),
};
- fib_route_path_t path_for_us = {
- .frp_proto = fib_proto_to_dpo(PROTO),
- .frp_addr = zero_addr,
- .frp_sw_if_index = 0xffffffff,
- .frp_fib_index = ~0,
- .frp_weight = 0,
- .frp_flags = FIB_ROUTE_PATH_LOCAL,
- };
+ fib_route_path_t *two_paths = NULL;
+ vec_add1(two_paths, path_via_if2);
+ vec_add1(two_paths, path_via_if3);
/*
* An (S,G) with 1 accepting and 3 forwarding paths
@@ -466,24 +467,15 @@ mfib_test_i (fib_protocol_t PROTO,
mfib_table_entry_path_update(fib_index,
pfx_s_g,
MFIB_SOURCE_API,
- &path_via_if0,
- MFIB_ITF_FLAG_ACCEPT);
- mfib_table_entry_path_update(fib_index,
- pfx_s_g,
- MFIB_SOURCE_API,
- &path_via_if1,
- MFIB_ITF_FLAG_FORWARD);
- mfib_table_entry_path_update(fib_index,
- pfx_s_g,
- MFIB_SOURCE_API,
- &path_via_if2,
- MFIB_ITF_FLAG_FORWARD);
+ &path_via_if0);
mfib_table_entry_path_update(fib_index,
pfx_s_g,
MFIB_SOURCE_API,
- &path_via_if3,
- (MFIB_ITF_FLAG_FORWARD |
- MFIB_ITF_FLAG_NEGATE_SIGNAL));
+ &path_via_if1);
+ mfib_table_entry_paths_update(fib_index,
+ pfx_s_g,
+ MFIB_SOURCE_API,
+ two_paths);
mfei_s_g = mfib_table_lookup_exact_match(fib_index, pfx_s_g);
@@ -515,13 +507,11 @@ mfib_test_i (fib_protocol_t PROTO,
mfei_g_1 = mfib_table_entry_path_update(fib_index,
pfx_star_g_1,
MFIB_SOURCE_API,
- &path_via_if0,
- MFIB_ITF_FLAG_ACCEPT);
+ &path_via_if0);
mfib_table_entry_path_update(fib_index,
pfx_star_g_1,
MFIB_SOURCE_API,
- &path_via_if1,
- MFIB_ITF_FLAG_FORWARD);
+ &path_via_if1);
/*
* test we find the *,G and S,G via LPM and exact matches
@@ -583,16 +573,15 @@ mfib_test_i (fib_protocol_t PROTO,
* A (*,G/m), which the same root G as the (*,G).
* different paths. test our LPM.
*/
+ path_via_if2.frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT;
mfei_g_m = mfib_table_entry_path_update(fib_index,
pfx_star_g_slash_m,
MFIB_SOURCE_API,
- &path_via_if2,
- MFIB_ITF_FLAG_ACCEPT);
+ &path_via_if2);
mfib_table_entry_path_update(fib_index,
pfx_star_g_slash_m,
MFIB_SOURCE_API,
- &path_via_if3,
- MFIB_ITF_FLAG_FORWARD);
+ &path_via_if3);
/*
* test we find the (*,G/m), (*,G) and (S,G) via LPM and exact matches
@@ -656,11 +645,20 @@ mfib_test_i (fib_protocol_t PROTO,
/*
* Add a for-us path
*/
+ fib_route_path_t path_for_us = {
+ .frp_proto = fib_proto_to_dpo(PROTO),
+ .frp_addr = zero_addr,
+ .frp_sw_if_index = 0xffffffff,
+ .frp_fib_index = ~0,
+ .frp_weight = 1,
+ .frp_flags = FIB_ROUTE_PATH_LOCAL,
+ .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
+ };
+
mfei = mfib_table_entry_path_update(fib_index,
pfx_s_g,
MFIB_SOURCE_API,
- &path_for_us,
- MFIB_ITF_FLAG_FORWARD);
+ &path_for_us);
MFIB_TEST(!mfib_test_entry(mfei,
MFIB_ENTRY_FLAG_NONE,
@@ -693,11 +691,11 @@ mfib_test_i (fib_protocol_t PROTO,
* update an existing forwarding path to be only accepting
* - expect it to be removed from the replication set.
*/
+ path_via_if3.frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT;
mfib_table_entry_path_update(fib_index,
pfx_s_g,
MFIB_SOURCE_API,
- &path_via_if3,
- MFIB_ITF_FLAG_ACCEPT);
+ &path_via_if3);
MFIB_TEST(!mfib_test_entry(mfei,
MFIB_ENTRY_FLAG_NONE,
@@ -718,13 +716,13 @@ mfib_test_i (fib_protocol_t PROTO,
* Make the path forwarding again
* - expect it to be added back to the replication set
*/
+ path_via_if3.frp_mitf_flags = (MFIB_ITF_FLAG_FORWARD |
+ MFIB_ITF_FLAG_ACCEPT |
+ MFIB_ITF_FLAG_NEGATE_SIGNAL);
mfib_table_entry_path_update(fib_index,
pfx_s_g,
MFIB_SOURCE_API,
- &path_via_if3,
- (MFIB_ITF_FLAG_FORWARD |
- MFIB_ITF_FLAG_ACCEPT |
- MFIB_ITF_FLAG_NEGATE_SIGNAL));
+ &path_via_if3);
mfei = mfib_table_lookup_exact_match(fib_index,
pfx_s_g);
@@ -806,32 +804,37 @@ mfib_test_i (fib_protocol_t PROTO,
MFIB_TEST_NS(!mfib_test_entry_no_itf(mfei, tm->hw[3]->sw_if_index));
/*
- * remove the accpeting only interface
+ * remove
*/
- mfib_table_entry_path_remove(fib_index,
- pfx_s_g,
- MFIB_SOURCE_API,
- &path_via_if0);
-
- MFIB_TEST(!mfib_test_entry(mfei,
- MFIB_ENTRY_FLAG_SIGNAL,
- 1,
- DPO_ADJACENCY_MCAST, ai_2),
- "%U replicate OK",
- format_mfib_prefix, pfx_s_g);
- MFIB_TEST_NS(!mfib_test_entry_itf(mfei, tm->hw[2]->sw_if_index,
- MFIB_ITF_FLAG_FORWARD));
- MFIB_TEST_NS(!mfib_test_entry_no_itf(mfei, tm->hw[0]->sw_if_index));
- MFIB_TEST_NS(!mfib_test_entry_no_itf(mfei, tm->hw[1]->sw_if_index));
- MFIB_TEST_NS(!mfib_test_entry_no_itf(mfei, tm->hw[3]->sw_if_index));
+ /* mfib_table_entry_path_remove(fib_index, */
+ /* pfx_s_g, */
+ /* MFIB_SOURCE_API, */
+ /* &path_via_if0); */
+
+ /* MFIB_TEST(!mfib_test_entry(mfei, */
+ /* MFIB_ENTRY_FLAG_SIGNAL, */
+ /* 1, */
+ /* DPO_ADJACENCY_MCAST, ai_2), */
+ /* "%U replicate OK", */
+ /* format_mfib_prefix, pfx_s_g); */
+ /* MFIB_TEST_NS(!mfib_test_entry_itf(mfei, tm->hw[2]->sw_if_index, */
+ /* MFIB_ITF_FLAG_FORWARD)); */
+ /* MFIB_TEST_NS(!mfib_test_entry_no_itf(mfei, tm->hw[0]->sw_if_index)); */
+ /* MFIB_TEST_NS(!mfib_test_entry_no_itf(mfei, tm->hw[1]->sw_if_index)); */
+ /* MFIB_TEST_NS(!mfib_test_entry_no_itf(mfei, tm->hw[3]->sw_if_index)); */
/*
- * remove the last path, the entry still has flags so it remains
+ * remove the last path and the accpeting only interface,
+ * the entry still has flags so it remains
*/
- mfib_table_entry_path_remove(fib_index,
- pfx_s_g,
- MFIB_SOURCE_API,
- &path_via_if2);
+ vec_reset_length(two_paths);
+ vec_add1(two_paths, path_via_if0);
+ vec_add1(two_paths, path_via_if2);
+
+ mfib_table_entry_paths_remove(fib_index,
+ pfx_s_g,
+ MFIB_SOURCE_API,
+ two_paths);
MFIB_TEST(!mfib_test_entry(mfei,
MFIB_ENTRY_FLAG_SIGNAL,
@@ -858,12 +861,12 @@ mfib_test_i (fib_protocol_t PROTO,
/*
* An entry with a NS interface
*/
+ path_via_if0.frp_mitf_flags = (MFIB_ITF_FLAG_ACCEPT |
+ MFIB_ITF_FLAG_NEGATE_SIGNAL);
mfei_g_2 = mfib_table_entry_path_update(fib_index,
pfx_star_g_2,
MFIB_SOURCE_API,
- &path_via_if0,
- (MFIB_ITF_FLAG_ACCEPT |
- MFIB_ITF_FLAG_NEGATE_SIGNAL));
+ &path_via_if0);
MFIB_TEST(!mfib_test_entry(mfei_g_2,
MFIB_ENTRY_FLAG_NONE,
0),
@@ -886,12 +889,12 @@ mfib_test_i (fib_protocol_t PROTO,
/*
* An entry with a NS interface
*/
+ path_via_if0.frp_mitf_flags = (MFIB_ITF_FLAG_ACCEPT |
+ MFIB_ITF_FLAG_NEGATE_SIGNAL);
mfei_g_3 = mfib_table_entry_path_update(fib_index,
pfx_star_g_3,
MFIB_SOURCE_API,
- &path_via_if0,
- (MFIB_ITF_FLAG_ACCEPT |
- MFIB_ITF_NEGATE_SIGNAL));
+ &path_via_if0);
MFIB_TEST(!mfib_test_entry(mfei_g_3,
MFIB_ENTRY_FLAG_NONE,
0),
@@ -1056,28 +1059,28 @@ mfib_test_i (fib_protocol_t PROTO,
.frp_addr = *addr_nbr1,
.frp_sw_if_index = tm->hw[0]->sw_if_index,
.frp_fib_index = ~0,
- .frp_weight = 0,
+ .frp_weight = 1,
.frp_flags = 0,
+ .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
};
fib_route_path_t path_via_nbr2 = {
.frp_proto = fib_proto_to_dpo(PROTO),
.frp_addr = *addr_nbr2,
.frp_sw_if_index = tm->hw[0]->sw_if_index,
.frp_fib_index = ~0,
- .frp_weight = 0,
+ .frp_weight = 1,
.frp_flags = 0,
+ .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
};
mfei_g_1 = mfib_table_entry_path_update(fib_index,
pfx_star_g_1,
MFIB_SOURCE_API,
- &path_via_nbr1,
- (MFIB_ITF_FLAG_FORWARD));
+ &path_via_nbr1);
mfei_g_1 = mfib_table_entry_path_update(fib_index,
pfx_star_g_1,
MFIB_SOURCE_API,
- &path_via_nbr2,
- (MFIB_ITF_FLAG_FORWARD));
+ &path_via_nbr2);
MFIB_TEST(!mfib_test_entry(mfei_g_1,
MFIB_ENTRY_FLAG_NONE,
2,
@@ -1230,6 +1233,7 @@ mfib_test_i (fib_protocol_t PROTO,
.frp_fib_index = 0,
.frp_weight = 1,
.frp_flags = FIB_ROUTE_PATH_FLAG_NONE,
+ .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
};
dpo_id_t mldp_dpo = DPO_INVALID;
@@ -1240,8 +1244,7 @@ mfib_test_i (fib_protocol_t PROTO,
mfei = mfib_table_entry_path_update(fib_index,
pfx_s_g,
MFIB_SOURCE_API,
- &path_via_mldp,
- MFIB_ITF_FLAG_FORWARD);
+ &path_via_mldp);
MFIB_TEST(!mfib_test_entry(mfei,
MFIB_ENTRY_FLAG_NONE,
@@ -1256,8 +1259,7 @@ mfib_test_i (fib_protocol_t PROTO,
mfei = mfib_table_entry_path_update(fib_index,
pfx_s_g,
MFIB_SOURCE_API,
- &path_for_us,
- MFIB_ITF_FLAG_FORWARD);
+ &path_for_us);
MFIB_TEST(!mfib_test_entry(mfei,
MFIB_ENTRY_FLAG_NONE,
2,
@@ -1321,6 +1323,7 @@ mfib_test_i (fib_protocol_t PROTO,
MFIB_TEST(n_itfs == pool_elts(mfib_itf_pool),
" No more Interfaces %d!=%d",
n_itfs, pool_elts(mfib_itf_pool));
+ vec_free(two_paths);
return (res);
}
@@ -1531,32 +1534,36 @@ mfib_test_rr_i (fib_protocol_t FPROTO,
.frp_addr = zero_addr,
.frp_sw_if_index = tm->hw[0]->sw_if_index,
.frp_fib_index = ~0,
- .frp_weight = 0,
+ .frp_weight = 1,
.frp_flags = 0,
+ .frp_mitf_flags = MFIB_ITF_FLAG_ACCEPT,
};
fib_route_path_t path_via_if1 = {
.frp_proto = DPROTO,
.frp_addr = zero_addr,
.frp_sw_if_index = tm->hw[1]->sw_if_index,
.frp_fib_index = ~0,
- .frp_weight = 0,
+ .frp_weight = 1,
.frp_flags = 0,
+ .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
};
fib_route_path_t path_via_if2 = {
.frp_proto = DPROTO,
.frp_addr = zero_addr,
.frp_sw_if_index = tm->hw[2]->sw_if_index,
.frp_fib_index = ~0,
- .frp_weight = 0,
+ .frp_weight = 1,
.frp_flags = 0,
+ .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
};
fib_route_path_t path_for_us = {
.frp_proto = DPROTO,
.frp_addr = zero_addr,
.frp_sw_if_index = 0xffffffff,
.frp_fib_index = ~0,
- .frp_weight = 0,
+ .frp_weight = 1,
.frp_flags = FIB_ROUTE_PATH_LOCAL,
+ .frp_mitf_flags = MFIB_ITF_FLAG_FORWARD,
};
/*
@@ -1581,8 +1588,7 @@ mfib_test_rr_i (fib_protocol_t FPROTO,
mfib_table_entry_path_update(fib_index,
pfx_cover,
MFIB_SOURCE_API,
- &path_via_if1,
- MFIB_ITF_FLAG_FORWARD);
+ &path_via_if1);
mfei_cover = mfib_table_lookup_exact_match(fib_index, pfx_cover);
@@ -1609,8 +1615,7 @@ mfib_test_rr_i (fib_protocol_t FPROTO,
mfib_table_entry_path_update(fib_index,
pfx_cover,
MFIB_SOURCE_API,
- &path_via_if2,
- MFIB_ITF_FLAG_FORWARD);
+ &path_via_if2);
/*
* expect the /32 and /28 to be via both boths
@@ -1667,8 +1672,7 @@ mfib_test_rr_i (fib_protocol_t FPROTO,
mfib_table_entry_path_update(fib_index,
pfx_cover,
MFIB_SOURCE_API,
- &path_via_if0,
- MFIB_ITF_FLAG_ACCEPT);
+ &path_via_if0);
/*
* expect the /32 and /28 to be via both boths
@@ -1706,8 +1710,7 @@ mfib_test_rr_i (fib_protocol_t FPROTO,
mfib_table_entry_path_update(fib_index,
pfx_cover,
MFIB_SOURCE_API,
- &path_for_us,
- MFIB_ITF_FLAG_FORWARD);
+ &path_for_us);
/*
* expect the /32 and /28 to be via all three paths
@@ -1775,11 +1778,10 @@ mfib_test_rr_i (fib_protocol_t FPROTO,
/*
* source the /32 with its own path
*/
- mfib_table_entry_path_update(fib_index,
- pfx_host1,
- MFIB_SOURCE_API,
- &path_via_if2,
- MFIB_ITF_FLAG_FORWARD);
+ mfei_host1 = mfib_table_entry_path_update(fib_index,
+ pfx_host1,
+ MFIB_SOURCE_API,
+ &path_via_if2);
MFIB_TEST(!mfib_test_entry(mfei_host1,
MFIB_ENTRY_FLAG_NONE,
1,
@@ -1809,17 +1811,16 @@ mfib_test_rr_i (fib_protocol_t FPROTO,
/*
* add the RR back then remove the path and RR
*/
- mfib_table_entry_path_update(fib_index,
- pfx_host1,
- MFIB_SOURCE_API,
- &path_via_if2,
- MFIB_ITF_FLAG_FORWARD);
+ mfei_host1 = mfib_table_entry_path_update(fib_index,
+ pfx_host1,
+ MFIB_SOURCE_API,
+ &path_via_if2);
MFIB_TEST(!mfib_test_entry(mfei_host1,
MFIB_ENTRY_FLAG_NONE,
1,
DPO_ADJACENCY_MCAST, ai_2),
"%U replicate OK",
- format_mfib_prefix, pfx_cover);
+ format_mfib_prefix, pfx_host1);
mfib_table_entry_delete(fib_index, pfx_host1,
MFIB_SOURCE_API);
n1194'>1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 
/*
 *------------------------------------------------------------------
 * interface_api.c - vnet interface api
 *
 * Copyright (c) 2016 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *------------------------------------------------------------------
 */

#include <vnet/vnet.h>
#include <vlibmemory/api.h>

#include <vnet/interface.h>
#include <vnet/api_errno.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/ip/ip.h>
#include <vnet/fib/fib_table.h>
#include <vnet/mfib/mfib_table.h>
#include <vnet/l2/l2_vtr.h>
#include <vnet/vnet_msg_enum.h>
#include <vnet/fib/fib_api.h>
#include <vnet/mfib/mfib_table.h>

#include <vlibapi/api_types.h>

#include <vnet/ip/ip_types_api.h>
#include <vnet/ethernet/ethernet_types_api.h>

#define vl_typedefs		/* define message structures */
#include <vnet/vnet_all_api_h.h>
#undef vl_typedefs

#define vl_endianfun		/* define message structures */
#include <vnet/vnet_all_api_h.h>
#undef vl_endianfun

/* instantiate all the print functions we know about */
#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
#define vl_printfun
#include <vnet/vnet_all_api_h.h>
#undef vl_printfun

#include <vlibapi/api_helper_macros.h>
vpe_api_main_t vpe_api_main;

#define foreach_vpe_api_msg                                     \
_(SW_INTERFACE_SET_FLAGS, sw_interface_set_flags)               \
_(HW_INTERFACE_SET_MTU, hw_interface_set_mtu)                   \
_(SW_INTERFACE_SET_MTU, sw_interface_set_mtu)                   \
_(WANT_INTERFACE_EVENTS, want_interface_events)                 \
_(SW_INTERFACE_DUMP, sw_interface_dump)                         \
_(SW_INTERFACE_ADD_DEL_ADDRESS, sw_interface_add_del_address)   \
_(SW_INTERFACE_SET_RX_MODE, sw_interface_set_rx_mode)           \
_(SW_INTERFACE_RX_PLACEMENT_DUMP, sw_interface_rx_placement_dump) \
_(SW_INTERFACE_SET_RX_PLACEMENT, sw_interface_set_rx_placement)	\
_(SW_INTERFACE_SET_TABLE, sw_interface_set_table)               \
_(SW_INTERFACE_GET_TABLE, sw_interface_get_table)               \
_(SW_INTERFACE_SET_UNNUMBERED, sw_interface_set_unnumbered)     \
_(SW_INTERFACE_CLEAR_STATS, sw_interface_clear_stats)           \
_(SW_INTERFACE_TAG_ADD_DEL, sw_interface_tag_add_del)           \
_(SW_INTERFACE_ADD_DEL_MAC_ADDRESS, sw_interface_add_del_mac_address) \
_(SW_INTERFACE_SET_MAC_ADDRESS, sw_interface_set_mac_address)   \
_(SW_INTERFACE_GET_MAC_ADDRESS, sw_interface_get_mac_address)   \
_(CREATE_VLAN_SUBIF, create_vlan_subif)                         \
_(CREATE_SUBIF, create_subif)                                   \
_(DELETE_SUBIF, delete_subif)                                   \
_(CREATE_LOOPBACK, create_loopback)				\
_(CREATE_LOOPBACK_INSTANCE, create_loopback_instance)		\
_(DELETE_LOOPBACK, delete_loopback)                             \
_(INTERFACE_NAME_RENUMBER, interface_name_renumber)             \
_(COLLECT_DETAILED_INTERFACE_STATS, collect_detailed_interface_stats) \
_(SW_INTERFACE_SET_IP_DIRECTED_BROADCAST,                            \
  sw_interface_set_ip_directed_broadcast)

static void
vl_api_sw_interface_set_flags_t_handler (vl_api_sw_interface_set_flags_t * mp)
{
  vl_api_sw_interface_set_flags_reply_t *rmp;
  vnet_main_t *vnm = vnet_get_main ();
  int rv = 0;
  clib_error_t *error;
  u16 flags;

  VALIDATE_SW_IF_INDEX (mp);

  flags =
    ((ntohl (mp->flags)) & IF_STATUS_API_FLAG_ADMIN_UP) ?
    VNET_SW_INTERFACE_FLAG_ADMIN_UP : 0;

  error = vnet_sw_interface_set_flags (vnm, ntohl (mp->sw_if_index), flags);
  if (error)
    {
      rv = -1;
      clib_error_report (error);
    }

  BAD_SW_IF_INDEX_LABEL;
  REPLY_MACRO (VL_API_SW_INTERFACE_SET_FLAGS_REPLY);
}

static void
vl_api_hw_interface_set_mtu_t_handler (vl_api_hw_interface_set_mtu_t * mp)
{
  vl_api_hw_interface_set_mtu_reply_t *rmp;
  vnet_main_t *vnm = vnet_get_main ();
  u32 sw_if_index = ntohl (mp->sw_if_index);
  u16 mtu = ntohs (mp->mtu);
  ethernet_main_t *em = &ethernet_main;
  int rv = 0;

  VALIDATE_SW_IF_INDEX (mp);

  vnet_sw_interface_t *si = vnet_get_sw_interface (vnm, sw_if_index);
  if (si->type != VNET_SW_INTERFACE_TYPE_HARDWARE)
    {
      rv = VNET_API_ERROR_INVALID_VALUE;
      goto bad_sw_if_index;
    }

  vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, si->hw_if_index);
  ethernet_interface_t *eif = ethernet_get_interface (em, si->hw_if_index);

  if (!eif)
    {
      rv = VNET_API_ERROR_FEATURE_DISABLED;
      goto bad_sw_if_index;
    }

  if (mtu < hi->min_supported_packet_bytes)
    {
      rv = VNET_API_ERROR_INVALID_VALUE;
      goto bad_sw_if_index;
    }

  if (mtu > hi->max_supported_packet_bytes)
    {
      rv = VNET_API_ERROR_INVALID_VALUE;
      goto bad_sw_if_index;
    }

  vnet_hw_interface_set_mtu (vnm, si->hw_if_index, mtu);

  BAD_SW_IF_INDEX_LABEL;
  REPLY_MACRO (VL_API_HW_INTERFACE_SET_MTU_REPLY);
}

static void
vl_api_sw_interface_set_mtu_t_handler (vl_api_sw_interface_set_mtu_t * mp)
{
  vl_api_sw_interface_set_mtu_reply_t *rmp;
  vnet_main_t *vnm = vnet_get_main ();
  u32 sw_if_index = ntohl (mp->sw_if_index);
  int rv = 0;
  int i;
  u32 per_protocol_mtu[VNET_N_MTU];

  VALIDATE_SW_IF_INDEX (mp);

  for (i = 0; i < VNET_N_MTU; i++)
    {
      per_protocol_mtu[i] = ntohl (mp->mtu[i]);
      clib_warning ("MTU %u", per_protocol_mtu[i]);
    }
  vnet_sw_interface_set_protocol_mtu (vnm, sw_if_index, per_protocol_mtu);

  BAD_SW_IF_INDEX_LABEL;
  REPLY_MACRO (VL_API_SW_INTERFACE_SET_MTU_REPLY);
}

static void
  vl_api_sw_interface_set_ip_directed_broadcast_t_handler
  (vl_api_sw_interface_set_ip_directed_broadcast_t * mp)
{
  vl_api_sw_interface_set_ip_directed_broadcast_reply_t *rmp;
  u32 sw_if_index = ntohl (mp->sw_if_index);
  int rv = 0;

  VALIDATE_SW_IF_INDEX (mp);

  vnet_sw_interface_ip_directed_broadcast (vnet_get_main (),
					   sw_if_index, mp->enable);

  BAD_SW_IF_INDEX_LABEL;
  REPLY_MACRO (VL_API_SW_INTERFACE_SET_IP_DIRECTED_BROADCAST_REPLY);
}

static void
send_sw_interface_details (vpe_api_main_t * am,
			   vl_api_registration_t * rp,
			   vnet_sw_interface_t * swif,
			   u8 * interface_name, u32 context)
{
  vnet_hw_interface_t *hi =
    vnet_get_sup_hw_interface (am->vnet_main, swif->sw_if_index);
  vnet_device_class_t *dev_class =
    vnet_get_device_class (am->vnet_main, hi->dev_class_index);

  vl_api_sw_interface_details_t *mp = vl_msg_api_alloc (sizeof (*mp));
  clib_memset (mp, 0, sizeof (*mp));
  mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_DETAILS);
  mp->sw_if_index = ntohl (swif->sw_if_index);
  mp->sup_sw_if_index = ntohl (swif->sup_sw_if_index);

  mp->flags |= (swif->flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP) ?
    IF_STATUS_API_FLAG_ADMIN_UP : 0;
  mp->flags |= (hi->flags & VNET_HW_INTERFACE_FLAG_LINK_UP) ?
    IF_STATUS_API_FLAG_LINK_UP : 0;
  mp->flags = ntohl (mp->flags);

  switch (swif->type)
    {
    case VNET_SW_INTERFACE_TYPE_SUB:
      mp->type = IF_API_TYPE_SUB;
      break;
    case VNET_SW_INTERFACE_TYPE_P2P:
      mp->type = IF_API_TYPE_P2P;
      break;
    case VNET_SW_INTERFACE_TYPE_PIPE:
      mp->type = IF_API_TYPE_PIPE;
      break;
    default:
      mp->type = IF_API_TYPE_HARDWARE;
    }
  mp->type = ntohl (mp->type);

  mp->link_duplex = ((hi->flags & VNET_HW_INTERFACE_FLAG_DUPLEX_MASK) >>
		     VNET_HW_INTERFACE_FLAG_DUPLEX_SHIFT);
  mp->link_speed = ntohl (hi->link_speed);
  mp->link_mtu = ntohs (hi->max_packet_bytes);
  mp->mtu[VNET_MTU_L3] = ntohl (swif->mtu[VNET_MTU_L3]);
  mp->mtu[VNET_MTU_IP4] = ntohl (swif->mtu[VNET_MTU_IP4]);
  mp->mtu[VNET_MTU_IP6] = ntohl (swif->mtu[VNET_MTU_IP6]);
  mp->mtu[VNET_MTU_MPLS] = ntohl (swif->mtu[VNET_MTU_MPLS]);

  mp->context = context;

  strncpy ((char *) mp->interface_name,
	   (char *) interface_name, ARRAY_LEN (mp->interface_name) - 1);

  if (dev_class && dev_class->name)
    strncpy ((char *) mp->interface_dev_type, (char *) dev_class->name,
	     ARRAY_LEN (mp->interface_dev_type) - 1);

  /* Send the L2 address for ethernet physical intfcs */
  if (swif->sup_sw_if_index == swif->sw_if_index
      && hi->hw_class_index == ethernet_hw_interface_class.index)
    {
      ethernet_main_t *em = ethernet_get_main (am->vlib_main);
      ethernet_interface_t *ei;

      ei = pool_elt_at_index (em->interfaces, hi->hw_instance);
      ASSERT (sizeof (mp->l2_address) >= sizeof (ei->address));
      mac_address_encode ((mac_address_t *) ei->address, mp->l2_address);
    }
  else if (swif->sup_sw_if_index != swif->sw_if_index)
    {
      vnet_sub_interface_t *sub = &swif->sub;
      mp->sub_id = ntohl (sub->id);
      mp->sub_number_of_tags =
	sub->eth.flags.one_tag + sub->eth.flags.two_tags * 2;
      mp->sub_outer_vlan_id = ntohs (sub->eth.outer_vlan_id);
      mp->sub_inner_vlan_id = ntohs (sub->eth.inner_vlan_id);
      mp->sub_if_flags =
	ntohl (sub->eth.raw_flags & SUB_IF_API_FLAG_MASK_VNET);

      /* vlan tag rewrite data */
      u32 vtr_op = L2_VTR_DISABLED;
      u32 vtr_push_dot1q = 0, vtr_tag1 = 0, vtr_tag2 = 0;

      if (l2vtr_get (am->vlib_main, am->vnet_main, swif->sw_if_index,
		     &vtr_op, &vtr_push_dot1q, &vtr_tag1, &vtr_tag2) != 0)
	{
	  // error - default to disabled
	  mp->vtr_op = ntohl (L2_VTR_DISABLED);
	  clib_warning ("cannot get vlan tag rewrite for sw_if_index %d",
			swif->sw_if_index);
	}
      else
	{
	  mp->vtr_op = ntohl (vtr_op);
	  mp->vtr_push_dot1q = ntohl (vtr_push_dot1q);
	  mp->vtr_tag1 = ntohl (vtr_tag1);
	  mp->vtr_tag2 = ntohl (vtr_tag2);
	}
    }

  /* pbb tag rewrite data */
  ethernet_header_t eth_hdr;
  u32 pbb_vtr_op = L2_VTR_DISABLED;
  u16 outer_tag = 0;
  u16 b_vlanid = 0;
  u32 i_sid = 0;
  clib_memset (&eth_hdr, 0, sizeof (eth_hdr));

  if (!l2pbb_get (am->vlib_main, am->vnet_main, swif->sw_if_index,
		  &pbb_vtr_op, &outer_tag, &eth_hdr, &b_vlanid, &i_sid))
    {
      mp->sub_if_flags |= ntohl (SUB_IF_API_FLAG_DOT1AH);
      mac_address_encode ((mac_address_t *) eth_hdr.dst_address, mp->b_dmac);
      mac_address_encode ((mac_address_t *) eth_hdr.src_address, mp->b_smac);
      mp->b_vlanid = b_vlanid;
      mp->i_sid = i_sid;
    }

  u8 *tag = vnet_get_sw_interface_tag (vnet_get_main (), swif->sw_if_index);
  if (tag)
    strncpy ((char *) mp->tag, (char *) tag, ARRAY_LEN (mp->tag) - 1);

  vl_api_send_msg (rp, (u8 *) mp);
}

static void
vl_api_sw_interface_dump_t_handler (vl_api_sw_interface_dump_t * mp)
{
  vpe_api_main_t *am = &vpe_api_main;
  vnet_sw_interface_t *swif;
  vnet_interface_main_t *im = &am->vnet_main->interface_main;
  vl_api_registration_t *rp;
  u32 sw_if_index;

  rp = vl_api_client_index_to_registration (mp->client_index);

  if (rp == 0)
    {
      clib_warning ("Client %d AWOL", mp->client_index);
      return;
    }

  u8 *filter = 0, *name = 0;
  sw_if_index = ntohl (mp->sw_if_index);

  if (!mp->name_filter_valid && sw_if_index != ~0 && sw_if_index != 0)
    {
      /* is it a valid sw_if_index? */
      if (!vnet_sw_if_index_is_api_valid (sw_if_index))
	return;

      swif = vec_elt_at_index (im->sw_interfaces, sw_if_index);

      vec_reset_length (name);
      name =
	format (name, "%U%c", format_vnet_sw_interface_name, am->vnet_main,
		swif, 0);
      send_sw_interface_details (am, rp, swif, name, mp->context);
      vec_free (name);
      return;
    }

  if (mp->name_filter_valid)
    {
      filter =
	format (0, ".*%s", vl_api_string_len (&mp->name_filter),
		vl_api_from_api_string (&mp->name_filter), 0);
    }

  char *strcasestr (char *, char *);	/* lnx hdr file botch */
  /* *INDENT-OFF* */
  pool_foreach (swif, im->sw_interfaces,
  ({
    if (!vnet_swif_is_api_visible (swif))
        continue;
    vec_reset_length(name);
    name = format (name, "%U%c", format_vnet_sw_interface_name, am->vnet_main,
                   swif, 0);

    if (filter && !strcasestr((char *) name, (char *) filter))
	continue;

    send_sw_interface_details (am, rp, swif, name, mp->context);
  }));
  /* *INDENT-ON* */

  vec_free (name);
  vec_free (filter);
}

static void
  vl_api_sw_interface_add_del_address_t_handler
  (vl_api_sw_interface_add_del_address_t * mp)
{
  vlib_main_t *vm = vlib_get_main ();
  vnet_main_t *vnm = vnet_get_main ();
  vl_api_sw_interface_add_del_address_reply_t *rmp;
  int rv = 0;
  u32 is_del;
  clib_error_t *error = 0;
  ip46_address_t address;

  VALIDATE_SW_IF_INDEX (mp);

  is_del = mp->is_add == 0;
  vnm->api_errno = 0;

  if (mp->del_all)
    ip_del_all_interface_addresses (vm, ntohl (mp->sw_if_index));
  else if (ip_address_decode (&mp->prefix.address, &address) == IP46_TYPE_IP6)
    error = ip6_add_del_interface_address (vm, ntohl (mp->sw_if_index),
					   (void *) &address.ip6,
					   mp->prefix.len, is_del);
  else
    error = ip4_add_del_interface_address (vm, ntohl (mp->sw_if_index),
					   (void *) &address.ip4,
					   mp->prefix.len, is_del);

  if (error)
    {
      rv = vnm->api_errno;
      clib_error_report (error);
      goto done;
    }

  BAD_SW_IF_INDEX_LABEL;

done:
  REPLY_MACRO (VL_API_SW_INTERFACE_ADD_DEL_ADDRESS_REPLY);
}

static void
vl_api_sw_interface_set_table_t_handler (vl_api_sw_interface_set_table_t * mp)
{
  vl_api_sw_interface_set_table_reply_t *rmp;
  u32 sw_if_index = ntohl (mp->sw_if_index);
  u32 table_id = ntohl (mp->vrf_id);
  int rv = 0;

  VALIDATE_SW_IF_INDEX (mp);

  if (mp->is_ipv6)
    rv = ip_table_bind (FIB_PROTOCOL_IP6, sw_if_index, table_id, 1);
  else
    rv = ip_table_bind (FIB_PROTOCOL_IP4, sw_if_index, table_id, 1);

  BAD_SW_IF_INDEX_LABEL;

  REPLY_MACRO (VL_API_SW_INTERFACE_SET_TABLE_REPLY);
}

int
ip_table_bind (fib_protocol_t fproto,
	       u32 sw_if_index, u32 table_id, u8 is_api)
{
  CLIB_UNUSED (ip_interface_address_t * ia);
  u32 fib_index, mfib_index;
  fib_source_t src;
  mfib_source_t msrc;

  if (is_api)
    {
      src = FIB_SOURCE_API;
      msrc = MFIB_SOURCE_API;
    }
  else
    {
      src = FIB_SOURCE_CLI;
      msrc = MFIB_SOURCE_CLI;
    }

  /*
   * This if table does not exist = error is what we want in the end.
   */
  fib_index = fib_table_find (fproto, table_id);
  mfib_index = mfib_table_find (fproto, table_id);

  if (~0 == fib_index || ~0 == mfib_index)
    {
      return (VNET_API_ERROR_NO_SUCH_FIB);
    }

  if (FIB_PROTOCOL_IP6 == fproto)
    {
      /*
       * If the interface already has in IP address, then a change int
       * VRF is not allowed. The IP address applied must first be removed.
       * We do not do that automatically here, since VPP has no knowledge
       * of whether those subnets are valid in the destination VRF.
       */
      /* *INDENT-OFF* */
      foreach_ip_interface_address (&ip6_main.lookup_main,
				    ia, sw_if_index,
				    1 /* honor unnumbered */ ,
      ({
        return (VNET_API_ERROR_ADDRESS_FOUND_FOR_INTERFACE);
      }));
      /* *INDENT-ON* */

      vec_validate (ip6_main.fib_index_by_sw_if_index, sw_if_index);
      vec_validate (ip6_main.mfib_index_by_sw_if_index, sw_if_index);

      /*
       * tell those that are interested that the binding is changing.
       */
      ip6_table_bind_callback_t *cb;
      vec_foreach (cb, ip6_main.table_bind_callbacks)
	cb->function (&ip6_main, cb->function_opaque,
		      sw_if_index,
		      fib_index,
		      ip6_main.fib_index_by_sw_if_index[sw_if_index]);

      if (0 == table_id)
	{
	  /* reset back to default */
	  if (0 != ip6_main.fib_index_by_sw_if_index[sw_if_index])
	    fib_table_unlock (ip6_main.fib_index_by_sw_if_index[sw_if_index],
			      FIB_PROTOCOL_IP6, src);
	  if (0 != ip6_main.mfib_index_by_sw_if_index[sw_if_index])
	    mfib_table_unlock (ip6_main.mfib_index_by_sw_if_index
			       [sw_if_index], FIB_PROTOCOL_IP6, msrc);

	}
      else
	{
	  /* we need to lock the table now it's inuse */
	  fib_table_lock (fib_index, FIB_PROTOCOL_IP6, src);
	  mfib_table_lock (mfib_index, FIB_PROTOCOL_IP6, msrc);
	}

      ip6_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
      ip6_main.mfib_index_by_sw_if_index[sw_if_index] = mfib_index;
    }
  else
    {
      /*
       * If the interface already has in IP address, then a change int
       * VRF is not allowed. The IP address applied must first be removed.
       * We do not do that automatically here, since VPP has no knowledge
       * of whether those subnets are valid in the destination VRF.
       */
      /* *INDENT-OFF* */
      foreach_ip_interface_address (&ip4_main.lookup_main,
				    ia, sw_if_index,
				    1 /* honor unnumbered */ ,
      ({
        return (VNET_API_ERROR_ADDRESS_FOUND_FOR_INTERFACE);
      }));
      /* *INDENT-ON* */

      vec_validate (ip4_main.fib_index_by_sw_if_index, sw_if_index);
      vec_validate (ip4_main.mfib_index_by_sw_if_index, sw_if_index);

      /*
       * tell those that are interested that the binding is changing.
       */
      ip4_table_bind_callback_t *cb;
      vec_foreach (cb, ip4_main.table_bind_callbacks)
	cb->function (&ip4_main, cb->function_opaque,
		      sw_if_index,
		      fib_index,
		      ip4_main.fib_index_by_sw_if_index[sw_if_index]);

      if (0 == table_id)
	{
	  /* reset back to default */
	  if (0 != ip4_main.fib_index_by_sw_if_index[sw_if_index])
	    fib_table_unlock (ip4_main.fib_index_by_sw_if_index[sw_if_index],
			      FIB_PROTOCOL_IP4, src);
	  if (0 != ip4_main.mfib_index_by_sw_if_index[sw_if_index])
	    mfib_table_unlock (ip4_main.mfib_index_by_sw_if_index
			       [sw_if_index], FIB_PROTOCOL_IP4, msrc);

	}
      else
	{
	  /* we need to lock the table now it's inuse */
	  fib_index = fib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
							 table_id, src);

	  mfib_index = mfib_table_find_or_create_and_lock (FIB_PROTOCOL_IP4,
							   table_id, msrc);
	}

      ip4_main.fib_index_by_sw_if_index[sw_if_index] = fib_index;
      ip4_main.mfib_index_by_sw_if_index[sw_if_index] = mfib_index;
    }

  return (0);
}

static void
send_sw_interface_get_table_reply (vl_api_registration_t * reg,
				   u32 context, int retval, u32 vrf_id)
{
  vl_api_sw_interface_get_table_reply_t *mp;

  mp = vl_msg_api_alloc (sizeof (*mp));
  clib_memset (mp, 0, sizeof (*mp));
  mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_GET_TABLE_REPLY);
  mp->context = context;
  mp->retval = htonl (retval);
  mp->vrf_id = htonl (vrf_id);

  vl_api_send_msg (reg, (u8 *) mp);
}

static void
vl_api_sw_interface_get_table_t_handler (vl_api_sw_interface_get_table_t * mp)
{
  vl_api_registration_t *reg;
  fib_table_t *fib_table = 0;
  u32 sw_if_index = ~0;
  u32 fib_index = ~0;
  u32 table_id = ~0;
  fib_protocol_t fib_proto = FIB_PROTOCOL_IP4;
  int rv = 0;

  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;

  VALIDATE_SW_IF_INDEX (mp);

  sw_if_index = ntohl (mp->sw_if_index);

  if (mp->is_ipv6)
    fib_proto = FIB_PROTOCOL_IP6;

  fib_index = fib_table_get_index_for_sw_if_index (fib_proto, sw_if_index);
  if (fib_index != ~0)
    {
      fib_table = fib_table_get (fib_index, fib_proto);
      table_id = fib_table->ft_table_id;
    }

  BAD_SW_IF_INDEX_LABEL;

  send_sw_interface_get_table_reply (reg, mp->context, rv, table_id);
}

static void vl_api_sw_interface_set_unnumbered_t_handler
  (vl_api_sw_interface_set_unnumbered_t * mp)
{
  vl_api_sw_interface_set_unnumbered_reply_t *rmp;
  int rv = 0;
  vnet_main_t *vnm = vnet_get_main ();
  u32 sw_if_index = ntohl (mp->sw_if_index);
  u32 unnumbered_sw_if_index = ntohl (mp->unnumbered_sw_if_index);

  /*
   * The API message field names are backwards from
   * the underlying data structure names.
   * It's not worth changing them now.
   */
  if (!vnet_sw_interface_is_api_valid (vnm, unnumbered_sw_if_index))
    {
      rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
      goto done;
    }

  /* Only check the "use loop0" field when setting the binding */
  if (mp->is_add && !vnet_sw_interface_is_api_valid (vnm, sw_if_index))
    {
      rv = VNET_API_ERROR_INVALID_SW_IF_INDEX_2;
      goto done;
    }

  vnet_sw_interface_update_unnumbered (unnumbered_sw_if_index,
				       sw_if_index, mp->is_add);
done:
  REPLY_MACRO (VL_API_SW_INTERFACE_SET_UNNUMBERED_REPLY);
}

static void
vl_api_sw_interface_clear_stats_t_handler (vl_api_sw_interface_clear_stats_t *
					   mp)
{
  vl_api_sw_interface_clear_stats_reply_t *rmp;

  vnet_main_t *vnm = vnet_get_main ();
  vnet_interface_main_t *im = &vnm->interface_main;
  vlib_simple_counter_main_t *sm;
  vlib_combined_counter_main_t *cm;
  int j, n_counters;
  int rv = 0;

  if (mp->sw_if_index != ~0)
    VALIDATE_SW_IF_INDEX (mp);

  n_counters = vec_len (im->combined_sw_if_counters);

  for (j = 0; j < n_counters; j++)
    {
      im = &vnm->interface_main;
      cm = im->combined_sw_if_counters + j;
      if (mp->sw_if_index == (u32) ~ 0)
	vlib_clear_combined_counters (cm);
      else
	vlib_zero_combined_counter (cm, ntohl (mp->sw_if_index));
    }

  n_counters = vec_len (im->sw_if_counters);

  for (j = 0; j < n_counters; j++)
    {
      im = &vnm->interface_main;
      sm = im->sw_if_counters + j;
      if (mp->sw_if_index == (u32) ~ 0)
	vlib_clear_simple_counters (sm);
      else
	vlib_zero_simple_counter (sm, ntohl (mp->sw_if_index));
    }

  BAD_SW_IF_INDEX_LABEL;

  REPLY_MACRO (VL_API_SW_INTERFACE_CLEAR_STATS_REPLY);
}

/*
 * Events used for sw_interface_events
 */
enum api_events
{
  API_LINK_STATE_UP_EVENT = 1 << 1,
  API_LINK_STATE_DOWN_EVENT = 1 << 2,
  API_ADMIN_UP_EVENT = 1 << 3,
  API_ADMIN_DOWN_EVENT = 1 << 4,
  API_SW_INTERFACE_ADD_EVENT = 1 << 5,
  API_SW_INTERFACE_DEL_EVENT = 1 << 6,
};

static void
send_sw_interface_event (vpe_api_main_t * am,
			 vpe_client_registration_t * reg,
			 vl_api_registration_t * vl_reg,
			 u32 sw_if_index, enum api_events events)
{
  vl_api_sw_interface_event_t *mp;

  mp = vl_msg_api_alloc (sizeof (*mp));
  clib_memset (mp, 0, sizeof (*mp));
  mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_EVENT);
  mp->sw_if_index = ntohl (sw_if_index);
  mp->client_index = reg->client_index;
  mp->pid = reg->client_pid;
  mp->flags = 0;
  mp->flags |= (events & API_ADMIN_UP_EVENT) ?
    IF_STATUS_API_FLAG_ADMIN_UP : 0;
  mp->flags |= (events & API_LINK_STATE_UP_EVENT) ?
    IF_STATUS_API_FLAG_LINK_UP : 0;
  mp->flags = ntohl (mp->flags);
  mp->deleted = events & API_SW_INTERFACE_DEL_EVENT ? true : false;
  vl_api_send_msg (vl_reg, (u8 *) mp);
}

static uword
link_state_process (vlib_main_t * vm,
		    vlib_node_runtime_t * rt, vlib_frame_t * f)
{
  vpe_api_main_t *vam = &vpe_api_main;
  uword *event_by_sw_if_index = 0;
  vpe_client_registration_t *reg;
  int i;
  vl_api_registration_t *vl_reg;
  uword event_type;
  uword *event_data = 0;
  u32 sw_if_index;

  vam->link_state_process_up = 1;

  while (1)
    {
      vlib_process_wait_for_event (vm);

      /* Batch up events */
      while ((event_type = vlib_process_get_events (vm, &event_data)) != ~0)
	{
	  for (i = 0; i < vec_len (event_data); i++)
	    {
	      sw_if_index = event_data[i];
	      vec_validate_init_empty (event_by_sw_if_index, sw_if_index, 0);
	      event_by_sw_if_index[sw_if_index] |= event_type;
	    }
	  vec_reset_length (event_data);
	}

      for (i = 0; i < vec_len (event_by_sw_if_index); i++)
	{
	  if (event_by_sw_if_index[i] == 0)
	    continue;

          /* *INDENT-OFF* */
          pool_foreach(reg, vam->interface_events_registrations,
          ({
            vl_reg = vl_api_client_index_to_registration (reg->client_index);
            if (vl_reg)
	      send_sw_interface_event (vam, reg, vl_reg, i, event_by_sw_if_index[i]);
          }));
          /* *INDENT-ON* */
	}
      vec_reset_length (event_by_sw_if_index);
    }

  return 0;
}

static clib_error_t *link_up_down_function (vnet_main_t * vm, u32 hw_if_index,
					    u32 flags);
static clib_error_t *admin_up_down_function (vnet_main_t * vm,
					     u32 hw_if_index, u32 flags);
static clib_error_t *sw_interface_add_del_function (vnet_main_t * vm,
						    u32 sw_if_index,
						    u32 flags);

/* *INDENT-OFF* */
VLIB_REGISTER_NODE (link_state_process_node,static) = {
  .function = link_state_process,
  .type = VLIB_NODE_TYPE_PROCESS,
  .name = "vpe-link-state-process",
};
/* *INDENT-ON* */

VNET_SW_INTERFACE_ADMIN_UP_DOWN_FUNCTION (admin_up_down_function);
VNET_HW_INTERFACE_LINK_UP_DOWN_FUNCTION (link_up_down_function);
VNET_SW_INTERFACE_ADD_DEL_FUNCTION (sw_interface_add_del_function);

static clib_error_t *
link_up_down_function (vnet_main_t * vm, u32 hw_if_index, u32 flags)
{
  vpe_api_main_t *vam = &vpe_api_main;
  vnet_hw_interface_t *hi = vnet_get_hw_interface (vm, hw_if_index);

  if (vam->link_state_process_up)
    {
      enum api_events event =
	flags ? API_LINK_STATE_UP_EVENT : API_LINK_STATE_DOWN_EVENT;
      vlib_process_signal_event (vam->vlib_main,
				 link_state_process_node.index, event,
				 hi->sw_if_index);
    }
  return 0;
}

static clib_error_t *
admin_up_down_function (vnet_main_t * vm, u32 sw_if_index, u32 flags)
{
  vpe_api_main_t *vam = &vpe_api_main;

  /*
   * Note: it's perfectly fair to set a subif admin up / admin down.
   * Note the subtle distinction between this routine and the previous
   * routine.
   */
  if (vam->link_state_process_up)
    {
      enum api_events event =
	flags ? API_ADMIN_UP_EVENT : API_ADMIN_DOWN_EVENT;
      vlib_process_signal_event (vam->vlib_main,
				 link_state_process_node.index, event,
				 sw_if_index);
    }
  return 0;
}

static clib_error_t *
sw_interface_add_del_function (vnet_main_t * vm, u32 sw_if_index, u32 flags)
{
  vpe_api_main_t *vam = &vpe_api_main;

  if (vam->link_state_process_up)
    {
      enum api_events event =
	flags ? API_SW_INTERFACE_ADD_EVENT : API_SW_INTERFACE_DEL_EVENT;
      vlib_process_signal_event (vam->vlib_main,
				 link_state_process_node.index, event,
				 sw_if_index);
    }
  return 0;
}

static void vl_api_sw_interface_tag_add_del_t_handler
  (vl_api_sw_interface_tag_add_del_t * mp)
{
  vnet_main_t *vnm = vnet_get_main ();
  vl_api_sw_interface_tag_add_del_reply_t *rmp;
  int rv = 0;
  u8 *tag;
  u32 sw_if_index = ntohl (mp->sw_if_index);

  VALIDATE_SW_IF_INDEX (mp);

  if (mp->is_add)
    {
      if (mp->tag[0] == 0)
	{
	  rv = VNET_API_ERROR_INVALID_VALUE;
	  goto out;
	}

      mp->tag[ARRAY_LEN (mp->tag) - 1] = 0;
      tag = format (0, "%s%c", mp->tag, 0);
      vnet_set_sw_interface_tag (vnm, tag, sw_if_index);
    }
  else
    vnet_clear_sw_interface_tag (vnm, sw_if_index);

  BAD_SW_IF_INDEX_LABEL;
out:
  REPLY_MACRO (VL_API_SW_INTERFACE_TAG_ADD_DEL_REPLY);
}

static void vl_api_sw_interface_add_del_mac_address_t_handler
  (vl_api_sw_interface_add_del_mac_address_t * mp)
{
  vl_api_sw_interface_add_del_mac_address_reply_t *rmp;
  vnet_main_t *vnm = vnet_get_main ();
  u32 sw_if_index = ntohl (mp->sw_if_index);
  vnet_hw_interface_t *hi;
  clib_error_t *error;
  int rv = 0;

  VALIDATE_SW_IF_INDEX (mp);

  /* for subifs, the MAC should be changed on the actual hw if */
  hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
  error = vnet_hw_interface_add_del_mac_address (vnm, hi->hw_if_index,
						 mp->addr, mp->is_add);
  if (error)
    {
      rv = VNET_API_ERROR_UNIMPLEMENTED;
      clib_error_report (error);
      goto out;
    }

  BAD_SW_IF_INDEX_LABEL;
out:
  REPLY_MACRO (VL_API_SW_INTERFACE_ADD_DEL_MAC_ADDRESS_REPLY);
}

static void vl_api_sw_interface_set_mac_address_t_handler
  (vl_api_sw_interface_set_mac_address_t * mp)
{
  vl_api_sw_interface_set_mac_address_reply_t *rmp;
  vnet_main_t *vnm = vnet_get_main ();
  u32 sw_if_index = ntohl (mp->sw_if_index);
  vnet_sw_interface_t *si;
  clib_error_t *error;
  int rv = 0;
  mac_address_t mac;

  VALIDATE_SW_IF_INDEX (mp);

  si = vnet_get_sw_interface (vnm, sw_if_index);
  mac_address_decode (mp->mac_address, &mac);
  error =
    vnet_hw_interface_change_mac_address (vnm, si->hw_if_index, (u8 *) & mac);
  if (error)
    {
      rv = VNET_API_ERROR_UNIMPLEMENTED;
      clib_error_report (error);
      goto out;
    }

  BAD_SW_IF_INDEX_LABEL;
out:
  REPLY_MACRO (VL_API_SW_INTERFACE_SET_MAC_ADDRESS_REPLY);
}

static void vl_api_sw_interface_get_mac_address_t_handler
  (vl_api_sw_interface_get_mac_address_t * mp)
{
  vl_api_sw_interface_get_mac_address_reply_t *rmp;
  vl_api_registration_t *reg;
  vnet_main_t *vnm = vnet_get_main ();
  u32 sw_if_index = ntohl (mp->sw_if_index);
  vnet_sw_interface_t *si;
  ethernet_interface_t *eth_if = 0;
  int rv = 0;

  VALIDATE_SW_IF_INDEX (mp);

  si = vnet_get_sup_sw_interface (vnm, sw_if_index);
  if (si->type == VNET_SW_INTERFACE_TYPE_HARDWARE)
    eth_if = ethernet_get_interface (&ethernet_main, si->hw_if_index);

  BAD_SW_IF_INDEX_LABEL;

  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;
  rmp = vl_msg_api_alloc (sizeof (*rmp));
  rmp->_vl_msg_id = htons (VL_API_SW_INTERFACE_GET_MAC_ADDRESS_REPLY);
  rmp->context = mp->context;
  rmp->retval = htonl (rv);
  if (!rv && eth_if)
    mac_address_encode ((mac_address_t *) eth_if->address, rmp->mac_address);
  vl_api_send_msg (reg, (u8 *) rmp);
}

static void vl_api_sw_interface_set_rx_mode_t_handler
  (vl_api_sw_interface_set_rx_mode_t * mp)
{
  vl_api_sw_interface_set_rx_mode_reply_t *rmp;
  vnet_main_t *vnm = vnet_get_main ();
  u32 sw_if_index = ntohl (mp->sw_if_index);
  vnet_sw_interface_t *si;
  clib_error_t *error;
  int rv = 0;

  VALIDATE_SW_IF_INDEX (mp);

  si = vnet_get_sw_interface (vnm, sw_if_index);
  if (si->type != VNET_SW_INTERFACE_TYPE_HARDWARE)
    {
      rv = VNET_API_ERROR_INVALID_VALUE;
      goto bad_sw_if_index;
    }

  error = set_hw_interface_change_rx_mode (vnm, si->hw_if_index,
					   mp->queue_id_valid,
					   ntohl (mp->queue_id),
					   (vnet_hw_interface_rx_mode)
					   mp->mode);

  if (error)
    {
      rv = VNET_API_ERROR_UNIMPLEMENTED;
      clib_error_report (error);
      goto out;
    }

  BAD_SW_IF_INDEX_LABEL;
out:
  REPLY_MACRO (VL_API_SW_INTERFACE_SET_RX_MODE_REPLY);
}

static void
send_interface_rx_placement_details (vpe_api_main_t * am,
				     vl_api_registration_t * rp,
				     u32 sw_if_index, u32 worker_id,
				     u32 queue_id, u8 mode, u32 context)
{
  vl_api_sw_interface_rx_placement_details_t *mp;
  mp = vl_msg_api_alloc (sizeof (*mp));
  clib_memset (mp, 0, sizeof (*mp));

  mp->_vl_msg_id = htons (VL_API_SW_INTERFACE_RX_PLACEMENT_DETAILS);
  mp->sw_if_index = htonl (sw_if_index);
  mp->queue_id = htonl (queue_id);
  mp->worker_id = htonl (worker_id);
  mp->mode = mode;
  mp->context = context;

  vl_api_send_msg (rp, (u8 *) mp);
}

static void vl_api_sw_interface_rx_placement_dump_t_handler
  (vl_api_sw_interface_rx_placement_dump_t * mp)
{
  vnet_main_t *vnm = vnet_get_main ();
  vpe_api_main_t *am = &vpe_api_main;
  u32 sw_if_index = ntohl (mp->sw_if_index);
  vl_api_registration_t *reg;

  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;

  if (sw_if_index == ~0)
    {
      vnet_device_input_runtime_t *rt;
      vnet_device_and_queue_t *dq;
      vlib_node_t *pn = vlib_get_node_by_name (am->vlib_main,
					       (u8 *) "device-input");
      uword si;
      int index = 0;

      /* *INDENT-OFF* */
      foreach_vlib_main (({
        clib_bitmap_foreach (si, pn->sibling_bitmap,
        ({
          rt = vlib_node_get_runtime_data (this_vlib_main, si);
          vec_foreach (dq, rt->devices_and_queues)
            {
              vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm,
                                                             dq->hw_if_index);
              send_interface_rx_placement_details (am, reg, hw->sw_if_index, index,
                                          dq->queue_id, dq->mode, mp->context);
            }
        }));
        index++;
      }));
      /* *INDENT-ON* */
    }
  else
    {
      int i;
      vnet_sw_interface_t *si;

      if (!vnet_sw_if_index_is_api_valid (sw_if_index))
	{
	  clib_warning ("sw_if_index %u does not exist", sw_if_index);
	  goto bad_sw_if_index;
	}

      si = vnet_get_sw_interface (vnm, sw_if_index);
      if (si->type != VNET_SW_INTERFACE_TYPE_HARDWARE)
	{
	  clib_warning ("interface type is not HARDWARE! P2P, PIPE and SUB"
			" interfaces are not supported");
	  goto bad_sw_if_index;
	}

      vnet_hw_interface_t *hw = vnet_get_hw_interface (vnm, si->hw_if_index);

      for (i = 0; i < vec_len (hw->dq_runtime_index_by_queue); i++)
	{
	  send_interface_rx_placement_details (am, reg, hw->sw_if_index,
					       hw->input_node_thread_index_by_queue
					       [i], i,
					       hw->rx_mode_by_queue[i],
					       mp->context);
	}
    }

  BAD_SW_IF_INDEX_LABEL;
}

static void vl_api_sw_interface_set_rx_placement_t_handler
  (vl_api_sw_interface_set_rx_placement_t * mp)
{
  vl_api_sw_interface_set_rx_placement_reply_t *rmp;
  vnet_main_t *vnm = vnet_get_main ();
  u32 sw_if_index = ntohl (mp->sw_if_index);
  vnet_sw_interface_t *si;
  clib_error_t *error = 0;
  int rv = 0;

  VALIDATE_SW_IF_INDEX (mp);

  si = vnet_get_sw_interface (vnm, sw_if_index);
  if (si->type != VNET_SW_INTERFACE_TYPE_HARDWARE)
    {
      rv = VNET_API_ERROR_INVALID_VALUE;
      goto bad_sw_if_index;
    }

  error = set_hw_interface_rx_placement (si->hw_if_index,
					 ntohl (mp->queue_id),
					 ntohl (mp->worker_id), mp->is_main);
  if (error)
    {
      rv = VNET_API_ERROR_UNIMPLEMENTED;
      clib_error_report (error);
      goto out;
    }

  BAD_SW_IF_INDEX_LABEL;
out:
  REPLY_MACRO (VL_API_SW_INTERFACE_SET_RX_PLACEMENT_REPLY);
}

static void
vl_api_create_vlan_subif_t_handler (vl_api_create_vlan_subif_t * mp)
{
  vl_api_create_vlan_subif_reply_t *rmp;
  vnet_main_t *vnm = vnet_get_main ();
  u32 sw_if_index = (u32) ~ 0;
  vnet_hw_interface_t *hi;
  int rv = 0;
  u32 id;
  vnet_sw_interface_t template;
  uword *p;
  vnet_interface_main_t *im = &vnm->interface_main;
  u64 sup_and_sub_key;
  vl_api_registration_t *reg;
  clib_error_t *error;

  VALIDATE_SW_IF_INDEX (mp);

  hi = vnet_get_sup_hw_interface (vnm, ntohl (mp->sw_if_index));

  if (hi->bond_info == VNET_HW_INTERFACE_BOND_INFO_SLAVE)
    {
      rv = VNET_API_ERROR_BOND_SLAVE_NOT_ALLOWED;
      goto out;
    }

  id = ntohl (mp->vlan_id);
  if (id == 0 || id > 4095)
    {
      rv = VNET_API_ERROR_INVALID_VLAN;
      goto out;
    }

  sup_and_sub_key = ((u64) (hi->sw_if_index) << 32) | (u64) id;

  p = hash_get_mem (im->sw_if_index_by_sup_and_sub, &sup_and_sub_key);
  if (p)
    {
      rv = VNET_API_ERROR_VLAN_ALREADY_EXISTS;
      goto out;
    }

  clib_memset (&template, 0, sizeof (template));
  template.type = VNET_SW_INTERFACE_TYPE_SUB;
  template.flood_class = VNET_FLOOD_CLASS_NORMAL;
  template.sup_sw_if_index = hi->sw_if_index;
  template.sub.id = id;
  template.sub.eth.raw_flags = 0;
  template.sub.eth.flags.one_tag = 1;
  template.sub.eth.outer_vlan_id = id;
  template.sub.eth.flags.exact_match = 1;

  error = vnet_create_sw_interface (vnm, &template, &sw_if_index);
  if (error)
    {
      clib_error_report (error);
      rv = VNET_API_ERROR_INVALID_REGISTRATION;
      goto out;
    }

  u64 *kp = clib_mem_alloc (sizeof (*kp));
  *kp = sup_and_sub_key;

  hash_set (hi->sub_interface_sw_if_index_by_id, id, sw_if_index);
  hash_set_mem (im->sw_if_index_by_sup_and_sub, kp, sw_if_index);

  BAD_SW_IF_INDEX_LABEL;

out:
  reg = vl_api_client_index_to_registration (mp->client_index);
  if (!reg)
    return;

  rmp = vl_msg_api_alloc (sizeof (*rmp));
  rmp->_vl_msg_id = htons (VL_API_CREATE_VLAN_SUBIF_REPLY);
  rmp->context = mp->context;
  rmp->retval = htonl (rv);
  rmp->sw_if_index = htonl (sw_if_index);
  vl_api_send_msg (reg, (u8 *) rmp);
}

static void
vl_api_create_subif_t_handler (vl_api_create_subif_t * mp)
{
  vl_api_create_subif_reply_t *rmp;
  vnet_main_t *vnm = vnet_get_main ();
  u32 sw_if_index = ~0;
  int rv = 0;
  u32 sub_id;
  vnet_sw_interface_t *si;
  vnet_hw_interface_t *hi;
  vnet_sw_interface_t template;
  uword *p;
  vnet_interface_main_t *im = &vnm->interface_main;
  u64 sup_and_sub_key;
  clib_error_t *error;

  VALIDATE_SW_IF_INDEX (mp);

  si = vnet_get_sup_sw_interface (vnm, ntohl (mp->sw_if_index));
  hi = vnet_get_sup_hw_interface (vnm, ntohl (mp->sw_if_index));

  if (hi->bond_info == VNET_HW_INTERFACE_BOND_INFO_SLAVE)
    {
      rv = VNET_API_ERROR_BOND_SLAVE_NOT_ALLOWED;
      goto out;
    }

  sw_if_index = si->sw_if_index;
  sub_id = ntohl (mp->sub_id);

  sup_and_sub_key = ((u64) (sw_if_index) << 32) | (u64) sub_id;

  p = hash_get_mem (im->sw_if_index_by_sup_and_sub, &sup_and_sub_key);
  if (p)
    {
      if (CLIB_DEBUG > 0)
	clib_warning ("sup sw_if_index %d, sub id %d already exists\n",
		      sw_if_index, sub_id);
      rv = VNET_API_ERROR_SUBIF_ALREADY_EXISTS;
      goto out;
    }

  clib_memset (&template, 0, sizeof (template));
  template.type = VNET_SW_INTERFACE_TYPE_SUB;
  template.flood_class = VNET_FLOOD_CLASS_NORMAL;
  template.sup_sw_if_index = sw_if_index;
  template.sub.id = sub_id;
  template.sub.eth.raw_flags = ntohl (mp->sub_if_flags);
  template.sub.eth.outer_vlan_id = ntohs (mp->outer_vlan_id);
  template.sub.eth.inner_vlan_id = ntohs (mp->inner_vlan_id);

  error = vnet_create_sw_interface (vnm, &template, &sw_if_index);
  if (error)
    {
      clib_error_report (error);
      rv = VNET_API_ERROR_SUBIF_CREATE_FAILED;
      goto out;
    }

  u64 *kp = clib_mem_alloc (sizeof (*kp));
  *kp = sup_and_sub_key;

  hash_set (hi->sub_interface_sw_if_index_by_id, sub_id, sw_if_index);
  hash_set_mem (im->sw_if_index_by_sup_and_sub, kp, sw_if_index);

  BAD_SW_IF_INDEX_LABEL;

out:

  /* *INDENT-OFF* */
  REPLY_MACRO2(VL_API_CREATE_SUBIF_REPLY,
  ({
    rmp->sw_if_index = ntohl(sw_if_index);
  }));
  /* *INDENT-ON* */
}

static void
vl_api_delete_subif_t_handler (vl_api_delete_subif_t * mp)
{
  vl_api_delete_subif_reply_t *rmp;
  int rv;

  rv = vnet_delete_sub_interface (ntohl (mp->sw_if_index));

  REPLY_MACRO (VL_API_DELETE_SUBIF_REPLY);
}

static void
vl_api_interface_name_renumber_t_handler (vl_api_interface_name_renumber_t *
					  mp)
{
  vl_api_interface_name_renumber_reply_t *rmp;
  int rv = 0;

  VALIDATE_SW_IF_INDEX (mp);

  rv = vnet_interface_name_renumber
    (ntohl (mp->sw_if_index), ntohl (mp->new_show_dev_instance));

  BAD_SW_IF_INDEX_LABEL;

  REPLY_MACRO (VL_API_INTERFACE_NAME_RENUMBER_REPLY);
}

static void
vl_api_create_loopback_t_handler (vl_api_create_loopback_t * mp)
{
  vl_api_create_loopback_reply_t *rmp;
  u32 sw_if_index;
  int rv;
  mac_address_t mac;

  mac_address_decode (mp->mac_address, &mac);
  rv = vnet_create_loopback_interface (&sw_if_index, (u8 *) & mac, 0, 0);

  /* *INDENT-OFF* */
  REPLY_MACRO2(VL_API_CREATE_LOOPBACK_REPLY,
  ({
    rmp->sw_if_index = ntohl (sw_if_index);
  }));
  /* *INDENT-ON* */
}

static void vl_api_create_loopback_instance_t_handler
  (vl_api_create_loopback_instance_t * mp)
{
  vl_api_create_loopback_instance_reply_t *rmp;
  u32 sw_if_index;
  u8 is_specified = mp->is_specified;
  u32 user_instance = ntohl (mp->user_instance);
  int rv;
  mac_address_t mac;

  mac_address_decode (mp->mac_address, &mac);
  rv = vnet_create_loopback_interface (&sw_if_index, (u8 *) & mac,
				       is_specified, user_instance);

  /* *INDENT-OFF* */
  REPLY_MACRO2(VL_API_CREATE_LOOPBACK_INSTANCE_REPLY,
  ({
    rmp->sw_if_index = ntohl (sw_if_index);
  }));
  /* *INDENT-ON* */
}

static void
vl_api_delete_loopback_t_handler (vl_api_delete_loopback_t * mp)
{
  vl_api_delete_loopback_reply_t *rmp;
  u32 sw_if_index;
  int rv;

  sw_if_index = ntohl (mp->sw_if_index);
  rv = vnet_delete_loopback_interface (sw_if_index);

  REPLY_MACRO (VL_API_DELETE_LOOPBACK_REPLY);
}

static void
  vl_api_collect_detailed_interface_stats_t_handler
  (vl_api_collect_detailed_interface_stats_t * mp)
{
  vl_api_collect_detailed_interface_stats_reply_t *rmp;
  int rv = 0;

  rv =
    vnet_sw_interface_stats_collect_enable_disable (ntohl (mp->sw_if_index),
						    mp->enable_disable);

  REPLY_MACRO (VL_API_COLLECT_DETAILED_INTERFACE_STATS_REPLY);
}

/*
 * vpe_api_hookup
 * Add vpe's API message handlers to the table.
 * vlib has already mapped shared memory and
 * added the client registration handlers.
 * See .../vlib-api/vlibmemory/memclnt_vlib.c:memclnt_process()
 */
#define vl_msg_name_crc_list
#include <vnet/interface.api.h>
#undef vl_msg_name_crc_list

static void
setup_message_id_table (api_main_t * am)
{
#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
  foreach_vl_msg_name_crc_interface;
#undef _
}

pub_sub_handler (interface_events, INTERFACE_EVENTS);

static clib_error_t *
interface_api_hookup (vlib_main_t * vm)
{
  api_main_t *am = &api_main;

#define _(N,n)                                                  \
    vl_msg_api_set_handlers(VL_API_##N, #n,                     \
                           vl_api_##n##_t_handler,              \
                           vl_noop_handler,                     \
                           vl_api_##n##_t_endian,               \
                           vl_api_##n##_t_print,                \
                           sizeof(vl_api_##n##_t), 1);
  foreach_vpe_api_msg;
#undef _

  /* Mark these APIs as mp safe */
  am->is_mp_safe[VL_API_SW_INTERFACE_DUMP] = 1;
  am->is_mp_safe[VL_API_SW_INTERFACE_DETAILS] = 1;
  am->is_mp_safe[VL_API_SW_INTERFACE_TAG_ADD_DEL] = 1;

  /* Do not replay VL_API_SW_INTERFACE_DUMP messages */
  am->api_trace_cfg[VL_API_SW_INTERFACE_DUMP].replay_enable = 0;

  /*
   * Set up the (msg_name, crc, message-id) table
   */
  setup_message_id_table (am);

  return 0;
}

VLIB_API_INIT_FUNCTION (interface_api_hookup);

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */