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-rw-r--r--src/vnet/ip/ip.c124
-rw-r--r--src/vnet/ip/ip.h7
-rwxr-xr-xsrc/vnet/ip/ip4_forward.c5
-rw-r--r--src/vnet/ip/ip6_forward.c26
4 files changed, 162 insertions, 0 deletions
diff --git a/src/vnet/ip/ip.c b/src/vnet/ip/ip.c
new file mode 100644
index 00000000000..caa553dd6d7
--- /dev/null
+++ b/src/vnet/ip/ip.c
@@ -0,0 +1,124 @@
+/*
+ * Copyright (c) 2017 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/ip/ip.h>
+#include <vnet/fib/fib_table.h>
+
+u8
+ip_is_zero (ip46_address_t * ip46_address, u8 is_ip4)
+{
+ if (is_ip4)
+ return (ip46_address->ip4.as_u32 == 0);
+ else
+ return (ip46_address->as_u64[0] == 0 && ip46_address->as_u64[1] == 0);
+}
+
+u8
+ip_is_local_host (ip46_address_t * ip46_address, u8 is_ip4)
+{
+ if (is_ip4)
+ return (ip46_address->ip4.as_u8[0] == 127);
+ else
+ return (ip46_address->as_u64[0] == 0 && ip46_address->as_u64[1] == 1);
+}
+
+/**
+ * Checks that an ip is local to the requested fib
+ */
+u8
+ip_is_local (u32 fib_index, ip46_address_t * ip46_address, u8 is_ip4)
+{
+ fib_node_index_t fei;
+ fib_entry_flag_t flags;
+ fib_prefix_t prefix;
+
+ /* Check if requester is local */
+ if (is_ip4)
+ {
+ prefix.fp_len = 32;
+ prefix.fp_proto = FIB_PROTOCOL_IP4;
+ }
+ else
+ {
+ prefix.fp_len = 128;
+ prefix.fp_proto = FIB_PROTOCOL_IP6;
+ }
+
+ clib_memcpy (&prefix.fp_addr, ip46_address, sizeof (ip46_address_t));
+ fei = fib_table_lookup (0, &prefix);
+ flags = fib_entry_get_flags (fei);
+
+ return (flags & FIB_ENTRY_FLAG_LOCAL);
+}
+
+u8
+ip_interface_has_address (u32 sw_if_index, ip46_address_t * ip, u8 is_ip4)
+{
+ ip_interface_address_t *ia = 0;
+
+ if (is_ip4)
+ {
+ ip_lookup_main_t *lm4 = &ip4_main.lookup_main;
+ ip4_address_t *ip4;
+ /* *INDENT-OFF* */
+ foreach_ip_interface_address (lm4, ia, sw_if_index, 1 /* unnumbered */ ,
+ ({
+ ip4 = ip_interface_address_get_address (lm4, ia);
+ if (ip4_address_compare (ip4, &ip->ip4) == 0)
+ return 1;
+ }));
+ /* *INDENT-ON* */
+ }
+ else
+ {
+ ip_lookup_main_t *lm6 = &ip6_main.lookup_main;
+ ip6_address_t *ip6;
+ /* *INDENT-OFF* */
+ foreach_ip_interface_address (lm6, ia, sw_if_index, 1 /* unnumbered */ ,
+ ({
+ ip6 = ip_interface_address_get_address (lm6, ia);
+ if (ip6_address_compare (ip6, &ip->ip6) == 0)
+ return 1;
+ }));
+ /* *INDENT-ON* */
+ }
+ return 0;
+}
+
+void
+ip_copy (ip46_address_t * dst, ip46_address_t * src, u8 is_ip4)
+{
+ if (is_ip4)
+ dst->ip4.as_u32 = src->ip4.as_u32;
+ else
+ clib_memcpy (&dst->ip6, &src->ip6, sizeof (ip6_address_t));
+}
+
+void
+ip_set (ip46_address_t * dst, void *src, u8 is_ip4)
+{
+ if (is_ip4)
+ dst->ip4.as_u32 = ((ip4_address_t *) src)->as_u32;
+ else
+ clib_memcpy (&dst->ip6, (ip6_address_t *) src, sizeof (ip6_address_t));
+}
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
diff --git a/src/vnet/ip/ip.h b/src/vnet/ip/ip.h
index 7e26bc6c135..3b3a465d042 100644
--- a/src/vnet/ip/ip.h
+++ b/src/vnet/ip/ip.h
@@ -192,6 +192,13 @@ void ip_table_delete (fib_protocol_t fproto, u32 table_id, u8 is_api);
int ip_table_bind (fib_protocol_t fproto, u32 sw_if_index,
u32 table_id, u8 is_api);
+u8 ip_is_zero (ip46_address_t * ip46_address, u8 is_ip4);
+u8 ip_is_local_host (ip46_address_t * ip46_address, u8 is_ip4);
+u8 ip_is_local (u32 fib_index, ip46_address_t * ip46_address, u8 is_ip4);
+u8 ip_interface_has_address (u32 sw_if_index, ip46_address_t * ip, u8 is_ip4);
+void ip_copy (ip46_address_t * dst, ip46_address_t * src, u8 is_ip4);
+void ip_set (ip46_address_t * dst, void *src, u8 is_ip4);
+
#endif /* included_ip_main_h */
/*
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index daffae410cc..c2a2f79e02f 100755
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -1606,6 +1606,10 @@ ip4_local_inline (vlib_main_t * vm,
(vnet_buffer (p1)->sw_if_index[VLIB_TX] ==
(u32) ~ 0) ? fib_index1 : vnet_buffer (p1)->sw_if_index[VLIB_TX];
+ /* TODO maybe move to lookup? */
+ vnet_buffer (p0)->ip.fib_index = fib_index0;
+ vnet_buffer (p1)->ip.fib_index = fib_index1;
+
mtrie0 = &ip4_fib_get (fib_index0)->mtrie;
mtrie1 = &ip4_fib_get (fib_index1)->mtrie;
@@ -1744,6 +1748,7 @@ ip4_local_inline (vlib_main_t * vm,
fib_index0 =
(vnet_buffer (p0)->sw_if_index[VLIB_TX] ==
(u32) ~ 0) ? fib_index0 : vnet_buffer (p0)->sw_if_index[VLIB_TX];
+ vnet_buffer (p0)->ip.fib_index = fib_index0;
mtrie0 = &ip4_fib_get (fib_index0)->mtrie;
leaf0 = ip4_fib_mtrie_lookup_step_one (mtrie0, &ip0->src_address);
leaf0 = ip4_fib_mtrie_lookup_step (mtrie0, leaf0, &ip0->src_address,
diff --git a/src/vnet/ip/ip6_forward.c b/src/vnet/ip/ip6_forward.c
index f54b433485f..6b89ec38aae 100644
--- a/src/vnet/ip/ip6_forward.c
+++ b/src/vnet/ip/ip6_forward.c
@@ -1428,6 +1428,24 @@ ip6_local_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
? IP6_ERROR_SRC_LOOKUP_MISS : error1);
}
+ /* TODO maybe move to lookup? */
+ vnet_buffer (p0)->ip.fib_index =
+ vec_elt (im->fib_index_by_sw_if_index,
+ vnet_buffer (p0)->sw_if_index[VLIB_RX]);
+ vnet_buffer (p0)->ip.fib_index =
+ (vnet_buffer (p0)->sw_if_index[VLIB_TX] ==
+ (u32) ~ 0) ? vnet_buffer (p0)->ip.
+ fib_index : vnet_buffer (p0)->sw_if_index[VLIB_TX];
+
+ vnet_buffer (p1)->ip.fib_index =
+ vec_elt (im->fib_index_by_sw_if_index,
+ vnet_buffer (p1)->sw_if_index[VLIB_RX]);
+ vnet_buffer (p1)->ip.fib_index =
+ (vnet_buffer (p1)->sw_if_index[VLIB_TX] ==
+ (u32) ~ 0) ? vnet_buffer (p1)->ip.
+ fib_index : vnet_buffer (p1)->sw_if_index[VLIB_TX];
+
+
skip_checks:
next0 = lm->local_next_by_ip_protocol[ip0->protocol];
@@ -1538,6 +1556,14 @@ ip6_local_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
? IP6_ERROR_SRC_LOOKUP_MISS : error0);
}
+ vnet_buffer (p0)->ip.fib_index =
+ vec_elt (im->fib_index_by_sw_if_index,
+ vnet_buffer (p0)->sw_if_index[VLIB_RX]);
+ vnet_buffer (p0)->ip.fib_index =
+ (vnet_buffer (p0)->sw_if_index[VLIB_TX] ==
+ (u32) ~ 0) ? vnet_buffer (p0)->ip.
+ fib_index : vnet_buffer (p0)->sw_if_index[VLIB_TX];
+
skip_check:
next0 = lm->local_next_by_ip_protocol[ip0->protocol];