2 * Copyright (c) 2017 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>
17 #include <vnet/fib/fib_table.h>
20 ip_is_zero (ip46_address_t * ip46_address, u8 is_ip4)
23 return (ip46_address->ip4.as_u32 == 0);
25 return (ip46_address->as_u64[0] == 0 && ip46_address->as_u64[1] == 0);
29 ip_is_local_host (ip46_address_t * ip46_address, u8 is_ip4)
32 return (ip46_address->ip4.as_u8[0] == 127);
34 return (ip46_address->as_u64[0] == 0 &&
35 clib_net_to_host_u64 (ip46_address->as_u64[1]) == 1);
39 ip4_is_local_host (ip4_address_t * ip4_address)
41 return (ip4_address->as_u8[0] == 127);
45 ip6_is_local_host (ip6_address_t * ip6_address)
47 return (ip6_address->as_u64[0] == 0 &&
48 clib_net_to_host_u64 (ip6_address->as_u64[1]) == 1);
52 * Checks that an ip is local to the requested fib
55 ip_is_local (u32 fib_index, ip46_address_t * ip46_address, u8 is_ip4)
58 fib_entry_flag_t flags;
61 /* Check if requester is local */
65 prefix.fp_proto = FIB_PROTOCOL_IP4;
70 prefix.fp_proto = FIB_PROTOCOL_IP6;
73 clib_memcpy_fast (&prefix.fp_addr, ip46_address, sizeof (ip46_address_t));
74 fei = fib_table_lookup (fib_index, &prefix);
75 flags = fib_entry_get_flags (fei);
77 return (flags & FIB_ENTRY_FLAG_LOCAL);
81 ip_copy (ip46_address_t * dst, ip46_address_t * src, u8 is_ip4)
85 ip46_address_mask_ip4 (dst);
86 dst->ip4.as_u32 = src->ip4.as_u32;
89 clib_memcpy_fast (&dst->ip6, &src->ip6, sizeof (ip6_address_t));
93 ip_set (ip46_address_t * dst, void *src, u8 is_ip4)
97 ip46_address_mask_ip4 (dst);
98 dst->ip4.as_u32 = ((ip4_address_t *) src)->as_u32;
101 clib_memcpy_fast (&dst->ip6, (ip6_address_t *) src,
102 sizeof (ip6_address_t));
106 static const char *ip_arc_names[N_IP_FEATURE_LOCATIONS][N_AF][N_SAFI] = {
107 [IP_FEATURE_INPUT] = {
109 [SAFI_UNICAST] = "ip4-unicast",
110 [SAFI_MULTICAST] = "ip4-multicast",
113 [SAFI_UNICAST] = "ip6-unicast",
114 [SAFI_MULTICAST] = "ip6-multicast",
117 [IP_FEATURE_OUTPUT] = {
119 [SAFI_UNICAST] = "ip4-output",
120 [SAFI_MULTICAST] = "ip4-output",
123 [SAFI_UNICAST] = "ip6-output",
124 [SAFI_MULTICAST] = "ip6-output",
127 [IP_FEATURE_LOCAL] = {
129 [SAFI_UNICAST] = "ip4-local",
130 [SAFI_MULTICAST] = "ip4-local",
133 [SAFI_UNICAST] = "ip6-local",
134 [SAFI_MULTICAST] = "ip6-local",
137 [IP_FEATURE_PUNT] = {
139 [SAFI_UNICAST] = "ip4-punt",
140 [SAFI_MULTICAST] = "ip4-punt",
143 [SAFI_UNICAST] = "ip6-punt",
144 [SAFI_MULTICAST] = "ip6-punt",
147 [IP_FEATURE_DROP] = {
149 [SAFI_UNICAST] = "ip4-drop",
150 [SAFI_MULTICAST] = "ip4-drop",
153 [SAFI_UNICAST] = "ip6-drop",
154 [SAFI_MULTICAST] = "ip6-drop",
161 ip_feature_enable_disable (ip_address_family_t af,
162 ip_sub_address_family_t safi,
163 ip_feature_location_t loc,
164 const char *feature_name,
165 u32 sw_if_index, int enable,
166 void *feature_config, u32 n_feature_config_bytes)
168 if (IP_FEATURE_INPUT == loc)
171 FOR_EACH_IP_ADDRESS_SUB_FAMILY (safi)
172 vnet_feature_enable_disable (ip_arc_names[loc][af][safi],
173 feature_name, sw_if_index,
174 enable, feature_config,
175 n_feature_config_bytes);
177 vnet_feature_enable_disable (ip_arc_names[loc][af][safi],
178 feature_name, sw_if_index,
179 enable, feature_config,
180 n_feature_config_bytes);
183 vnet_feature_enable_disable (ip_arc_names[loc][af][SAFI_UNICAST],
184 feature_name, sw_if_index,
185 enable, feature_config,
186 n_feature_config_bytes);
192 format_ip_address_family (u8 * s, va_list * args)
194 ip_address_family_t af = va_arg (*args, int); // int promo ip_address_family_t);
199 return (format (s, "ip4"));
201 return (format (s, "ip6"));
204 return (format (s, "unknown"));
208 unformat_ip_address_family (unformat_input_t * input, va_list * args)
210 ip_address_family_t *af = va_arg (*args, ip_address_family_t *);
212 if (unformat (input, "ip4") || unformat (input, "ipv4") ||
213 unformat (input, "IP4") || unformat (input, "IPv4"))
218 else if (unformat (input, "ip6") || unformat (input, "ipv6") ||
219 unformat (input, "IP6") || unformat (input, "IPv6"))
228 format_ip_sub_address_family (u8 * s, va_list * args)
230 ip_sub_address_family_t safi = va_arg (*args, int); // int promo ip_sub_address_family_t);
235 return (format (s, "unicast"));
237 return (format (s, "multicast"));
240 return (format (s, "unknown"));
244 unformat_ip_sub_address_family (unformat_input_t * input, va_list * args)
246 ip_sub_address_family_t *safi = va_arg (*args, ip_sub_address_family_t *);
248 if (unformat (input, "unicast") || unformat (input, "uni"))
250 *safi = SAFI_UNICAST;
253 else if (unformat (input, "multicast") || unformat (input, "multi"))
255 *safi = SAFI_MULTICAST;
262 format_ip_dscp (u8 * s, va_list * va)
264 ip_dscp_t dscp = va_arg (*va, u32); // int promotion of u8
270 return (format (s, "%s", #v));
275 return (format (s, "unknown"));
279 unformat_ip_dscp (unformat_input_t * input, va_list * args)
281 ip_dscp_t *dscp = va_arg (*args, ip_dscp_t *);
286 else if (unformat (input, #v)) \
297 format_ip_ecn (u8 * s, va_list * va)
299 ip_ecn_t ecn = va_arg (*va, u32); // int promotion of u8
305 return (format (s, "%s", #v));
310 return (format (s, "unknown"));
314 * fd.io coding-style-patch-verification: ON
317 * eval: (c-set-style "gnu")