2 * Copyright (c) 2016 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
16 #include <vnet/ip/ip.h>
18 #include <vnet/fib/fib_types.h>
19 #include <vnet/fib/fib_internal.h>
20 #include <vnet/mpls/mpls.h>
23 * arrays of protocol and link names
25 static const char* fib_protocol_names[] = FIB_PROTOCOLS;
26 static const char* vnet_link_names[] = VNET_LINKS;
27 static const char* fib_forw_chain_names[] = FIB_FORW_CHAINS;
30 format_fib_protocol (u8 * s, va_list * ap)
32 fib_protocol_t proto = va_arg(*ap, int); // fib_protocol_t promotion
34 return (format (s, "%s", fib_protocol_names[proto]));
38 format_vnet_link (u8 * s, va_list * ap)
40 vnet_link_t link = va_arg(*ap, int); // vnet_link_t promotion
42 return (format (s, "%s", vnet_link_names[link]));
46 format_fib_forw_chain_type (u8 * s, va_list * args)
48 fib_forward_chain_type_t fct = va_arg(*args, int);
50 return (format (s, "%s", fib_forw_chain_names[fct]));
54 fib_prefix_from_ip46_addr (const ip46_address_t *addr,
57 ASSERT(!ip46_address_is_zero(addr));
59 pfx->fp_proto = ((ip46_address_is_ip4(addr) ?
62 pfx->fp_len = ((ip46_address_is_ip4(addr) ?
68 fib_prefix_from_mpls_label (mpls_label_t label,
72 pfx->fp_proto = FIB_PROTOCOL_MPLS;
74 pfx->fp_label = label;
79 fib_prefix_cmp (const fib_prefix_t *p1,
80 const fib_prefix_t *p2)
84 res = (p1->fp_proto - p2->fp_proto);
90 case FIB_PROTOCOL_IP4:
91 case FIB_PROTOCOL_IP6:
92 res = (p1->fp_len - p2->fp_len);
96 res = ip46_address_cmp(&p1->fp_addr, &p2->fp_addr);
99 case FIB_PROTOCOL_MPLS:
100 res = (p1->fp_label - p2->fp_label);
104 res = (p1->fp_eos - p2->fp_eos);
114 fib_prefix_is_cover (const fib_prefix_t *p1,
115 const fib_prefix_t *p2)
117 switch (p1->fp_proto)
119 case FIB_PROTOCOL_IP4:
120 return (ip4_destination_matches_route(&ip4_main,
124 case FIB_PROTOCOL_IP6:
125 return (ip6_destination_matches_route(&ip6_main,
129 case FIB_PROTOCOL_MPLS:
136 fib_prefix_is_host (const fib_prefix_t *prefix)
138 switch (prefix->fp_proto)
140 case FIB_PROTOCOL_IP4:
141 return (prefix->fp_len == 32);
142 case FIB_PROTOCOL_IP6:
143 return (prefix->fp_len == 128);
144 case FIB_PROTOCOL_MPLS:
151 format_fib_prefix (u8 * s, va_list * args)
153 fib_prefix_t *fp = va_arg (*args, fib_prefix_t *);
156 * protocol specific so it prints ::/0 correctly.
158 switch (fp->fp_proto)
160 case FIB_PROTOCOL_IP6:
162 ip6_address_t p6 = fp->fp_addr.ip6;
164 ip6_address_mask(&p6, &(ip6_main.fib_masks[fp->fp_len]));
165 s = format (s, "%U", format_ip6_address, &p6);
168 case FIB_PROTOCOL_IP4:
170 ip4_address_t p4 = fp->fp_addr.ip4;
171 p4.as_u32 &= ip4_main.fib_masks[fp->fp_len];
173 s = format (s, "%U", format_ip4_address, &p4);
176 case FIB_PROTOCOL_MPLS:
177 s = format (s, "%U:%U",
178 format_mpls_unicast_label, fp->fp_label,
179 format_mpls_eos_bit, fp->fp_eos);
182 s = format (s, "/%d", fp->fp_len);
188 fib_route_path_cmp (const fib_route_path_t *rpath1,
189 const fib_route_path_t *rpath2)
193 res = ip46_address_cmp(&rpath1->frp_addr,
196 if (0 != res) return (res);
198 res = (rpath1->frp_sw_if_index - rpath2->frp_sw_if_index);
200 if (0 != res) return (res);
202 if (ip46_address_is_zero(&rpath1->frp_addr))
204 res = rpath1->frp_fib_index - rpath2->frp_fib_index;
211 fib_proto_to_dpo (fib_protocol_t fib_proto)
215 case FIB_PROTOCOL_IP6:
216 return (DPO_PROTO_IP6);
217 case FIB_PROTOCOL_IP4:
218 return (DPO_PROTO_IP4);
219 case FIB_PROTOCOL_MPLS:
220 return (DPO_PROTO_MPLS);
227 dpo_proto_to_fib (dpo_proto_t dpo_proto)
232 return (FIB_PROTOCOL_IP6);
234 return (FIB_PROTOCOL_IP4);
236 return (FIB_PROTOCOL_MPLS);
245 fib_proto_to_link (fib_protocol_t proto)
249 case FIB_PROTOCOL_IP4:
250 return (VNET_LINK_IP4);
251 case FIB_PROTOCOL_IP6:
252 return (VNET_LINK_IP6);
253 case FIB_PROTOCOL_MPLS:
254 return (VNET_LINK_MPLS);
260 fib_forward_chain_type_t
261 fib_forw_chain_type_from_dpo_proto (dpo_proto_t proto)
266 return (FIB_FORW_CHAIN_TYPE_UNICAST_IP4);
268 return (FIB_FORW_CHAIN_TYPE_UNICAST_IP6);
270 return (FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS);
271 case DPO_PROTO_ETHERNET:
272 return (FIB_FORW_CHAIN_TYPE_ETHERNET);
274 return (FIB_FORW_CHAIN_TYPE_NSH);
277 return (FIB_FORW_CHAIN_TYPE_UNICAST_IP4);
281 fib_forw_chain_type_to_link_type (fib_forward_chain_type_t fct)
285 case FIB_FORW_CHAIN_TYPE_UNICAST_IP4:
286 case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
287 return (VNET_LINK_IP4);
288 case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
289 case FIB_FORW_CHAIN_TYPE_MCAST_IP6:
290 return (VNET_LINK_IP6);
291 case FIB_FORW_CHAIN_TYPE_ETHERNET:
292 return (VNET_LINK_ETHERNET);
293 case FIB_FORW_CHAIN_TYPE_NSH:
294 return (VNET_LINK_NSH);
295 case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
297 * insufficient information to to convert
301 case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
302 return (VNET_LINK_MPLS);
304 return (VNET_LINK_IP4);
308 fib_forw_chain_type_to_dpo_proto (fib_forward_chain_type_t fct)
312 case FIB_FORW_CHAIN_TYPE_UNICAST_IP4:
313 case FIB_FORW_CHAIN_TYPE_MCAST_IP4:
314 return (DPO_PROTO_IP4);
315 case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
316 case FIB_FORW_CHAIN_TYPE_MCAST_IP6:
317 return (DPO_PROTO_IP6);
318 case FIB_FORW_CHAIN_TYPE_ETHERNET:
319 return (DPO_PROTO_ETHERNET);
320 case FIB_FORW_CHAIN_TYPE_NSH:
321 return (DPO_PROTO_NSH);
322 case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
323 case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
324 return (DPO_PROTO_MPLS);
326 return (DPO_PROTO_IP4);