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* fib_link_names[] = FIB_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_fib_link (u8 * s, va_list ap)
40 fib_link_t link = va_arg(ap, int); // fib_link_t promotion
42 return (format (s, "%s", fib_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_cmp (const fib_prefix_t *p1,
69 const fib_prefix_t *p2)
73 res = (p1->fp_proto - p2->fp_proto);
79 case FIB_PROTOCOL_IP4:
80 case FIB_PROTOCOL_IP6:
81 res = (p1->fp_len - p2->fp_len);
85 res = ip46_address_cmp(&p1->fp_addr, &p2->fp_addr);
88 case FIB_PROTOCOL_MPLS:
89 res = (p1->fp_label - p2->fp_label);
93 res = (p1->fp_eos - p2->fp_eos);
103 fib_prefix_is_cover (const fib_prefix_t *p1,
104 const fib_prefix_t *p2)
106 switch (p1->fp_proto)
108 case FIB_PROTOCOL_IP4:
109 return (ip4_destination_matches_route(&ip4_main,
113 case FIB_PROTOCOL_IP6:
114 return (ip6_destination_matches_route(&ip6_main,
118 case FIB_PROTOCOL_MPLS:
125 fib_prefix_is_host (const fib_prefix_t *prefix)
127 switch (prefix->fp_proto)
129 case FIB_PROTOCOL_IP4:
130 return (prefix->fp_len == 32);
131 case FIB_PROTOCOL_IP6:
132 return (prefix->fp_len == 128);
133 case FIB_PROTOCOL_MPLS:
140 format_fib_prefix (u8 * s, va_list * args)
142 fib_prefix_t *fp = va_arg (*args, fib_prefix_t *);
145 * protocol specific so it prints ::/0 correctly.
147 switch (fp->fp_proto)
149 case FIB_PROTOCOL_IP6:
151 ip6_address_t p6 = fp->fp_addr.ip6;
153 ip6_address_mask(&p6, &(ip6_main.fib_masks[fp->fp_len]));
154 s = format (s, "%U", format_ip6_address, &p6);
157 case FIB_PROTOCOL_IP4:
159 ip4_address_t p4 = fp->fp_addr.ip4;
160 p4.as_u32 &= ip4_main.fib_masks[fp->fp_len];
162 s = format (s, "%U", format_ip4_address, &p4);
165 case FIB_PROTOCOL_MPLS:
166 s = format (s, "%U:%U",
167 format_mpls_unicast_label, fp->fp_label,
168 format_mpls_eos_bit, fp->fp_eos);
171 s = format (s, "/%d", fp->fp_len);
177 fib_route_path_cmp (const fib_route_path_t *rpath1,
178 const fib_route_path_t *rpath2)
182 res = ip46_address_cmp(&rpath1->frp_addr,
185 if (0 != res) return (res);
187 res = vnet_sw_interface_compare(vnet_get_main(),
188 rpath1->frp_sw_if_index,
189 rpath2->frp_sw_if_index);
191 if (0 != res) return (res);
193 if (ip46_address_is_zero(&rpath1->frp_addr))
195 res = rpath1->frp_fib_index - rpath2->frp_fib_index;
202 fib_proto_to_dpo (fib_protocol_t fib_proto)
206 case FIB_PROTOCOL_IP6:
207 return (DPO_PROTO_IP6);
208 case FIB_PROTOCOL_IP4:
209 return (DPO_PROTO_IP4);
210 case FIB_PROTOCOL_MPLS:
211 return (DPO_PROTO_MPLS);
218 dpo_proto_to_fib (dpo_proto_t dpo_proto)
223 return (FIB_PROTOCOL_IP6);
225 return (FIB_PROTOCOL_IP4);
227 return (FIB_PROTOCOL_MPLS);
234 fib_proto_to_link (fib_protocol_t proto)
238 case FIB_PROTOCOL_IP4:
239 return (FIB_LINK_IP4);
240 case FIB_PROTOCOL_IP6:
241 return (FIB_LINK_IP6);
242 case FIB_PROTOCOL_MPLS:
243 return (FIB_LINK_MPLS);
249 fib_forward_chain_type_t
250 fib_proto_to_forw_chain_type (fib_protocol_t proto)
254 case FIB_PROTOCOL_IP4:
255 return (FIB_FORW_CHAIN_TYPE_UNICAST_IP4);
256 case FIB_PROTOCOL_IP6:
257 return (FIB_FORW_CHAIN_TYPE_UNICAST_IP6);
258 case FIB_PROTOCOL_MPLS:
259 return (FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS);
262 return (FIB_FORW_CHAIN_TYPE_UNICAST_IP4);
266 fib_forw_chain_type_to_link_type (fib_forward_chain_type_t fct)
270 case FIB_FORW_CHAIN_TYPE_UNICAST_IP4:
271 return (FIB_LINK_IP4);
272 case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
273 return (FIB_LINK_IP6);
274 case FIB_FORW_CHAIN_TYPE_MPLS_EOS:
276 * insufficient information to to convert
280 case FIB_FORW_CHAIN_TYPE_MPLS_NON_EOS:
281 return (FIB_LINK_MPLS);
283 return (FIB_LINK_IP4);
287 fib_forw_chain_type_to_dpo_proto (fib_forward_chain_type_t fct)
291 case FIB_FORW_CHAIN_TYPE_UNICAST_IP4:
292 return (DPO_PROTO_IP4);
293 case FIB_FORW_CHAIN_TYPE_UNICAST_IP6:
294 return (DPO_PROTO_IP6);
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 (DPO_PROTO_MPLS);
304 return (FIB_LINK_IP4);