2 * Copyright (c) 2018 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.
17 * @brief NAT formatting
21 #include <nat/nat_inlines.h>
24 unformat_nat_protocol (unformat_input_t * input, va_list * args)
26 u32 *r = va_arg (*args, u32 *);
29 #define _(N, i, n, s) else if (unformat (input, s)) *r = NAT_PROTOCOL_##N;
38 format_nat_protocol (u8 * s, va_list * args)
40 u32 i = va_arg (*args, u32);
45 #define _(N, j, n, str) case NAT_PROTOCOL_##N: t = (u8 *) str; break;
49 s = format (s, "unknown");
52 s = format (s, "%s", t);
57 format_nat_addr_and_port_alloc_alg (u8 * s, va_list * args)
59 u32 i = va_arg (*args, u32);
64 #define _(v, N, s) case NAT_ADDR_AND_PORT_ALLOC_ALG_##N: t = (u8 *) s; break;
65 foreach_nat_addr_and_port_alloc_alg
68 s = format (s, "unknown");
71 s = format (s, "%s", t);
76 format_snat_key (u8 * s, va_list * args)
78 u64 key = va_arg (*args, u64);
82 nat_protocol_t protocol;
85 split_nat_key (key, &addr, &port, &fib_index, &protocol);
87 s = format (s, "%U proto %U port %d fib %d",
88 format_ip4_address, &addr,
89 format_nat_protocol, protocol,
90 clib_net_to_host_u16 (port), fib_index);
95 format_snat_session_state (u8 * s, va_list * args)
97 u32 i = va_arg (*args, u32);
102 #define _(v, N, str) case SNAT_SESSION_##N: t = (u8 *) str; break;
103 foreach_snat_session_state
106 t = format (t, "unknown");
108 s = format (s, "%s", t);
113 format_snat_session (u8 * s, va_list * args)
115 snat_main_per_thread_data_t *tsm =
116 va_arg (*args, snat_main_per_thread_data_t *);
117 snat_session_t *sess = va_arg (*args, snat_session_t *);
119 if (snat_is_unk_proto_session (sess))
121 s = format (s, " i2o %U proto %u fib %u\n",
122 format_ip4_address, &sess->in2out.addr,
123 sess->in2out.port, sess->in2out.fib_index);
124 s = format (s, " o2i %U proto %u fib %u\n",
125 format_ip4_address, &sess->out2in.addr,
126 sess->out2in.port, sess->out2in.fib_index);
130 s = format (s, " i2o %U\n", format_snat_key, &sess->in2out);
131 s = format (s, " o2i %U\n", format_snat_key, &sess->out2in);
133 if (is_ed_session (sess) || is_fwd_bypass_session (sess))
135 if (is_twice_nat_session (sess))
137 s = format (s, " external host o2i %U:%d i2o %U:%d\n",
138 format_ip4_address, &sess->ext_host_addr,
139 clib_net_to_host_u16 (sess->ext_host_port),
140 format_ip4_address, &sess->ext_host_nat_addr,
141 clib_net_to_host_u16 (sess->ext_host_nat_port));
145 if (sess->ext_host_addr.as_u32)
146 s = format (s, " external host %U:%u\n",
147 format_ip4_address, &sess->ext_host_addr,
148 clib_net_to_host_u16 (sess->ext_host_port));
151 s = format (s, " index %llu\n", sess - tsm->sessions);
152 s = format (s, " last heard %.2f\n", sess->last_heard);
153 s = format (s, " total pkts %d, total bytes %lld\n",
154 sess->total_pkts, sess->total_bytes);
155 if (snat_is_session_static (sess))
156 s = format (s, " static translation\n");
158 s = format (s, " dynamic translation\n");
159 if (is_fwd_bypass_session (sess))
160 s = format (s, " forwarding-bypass\n");
161 if (is_lb_session (sess))
162 s = format (s, " load-balancing\n");
163 if (is_twice_nat_session (sess))
164 s = format (s, " twice-nat\n");
170 format_snat_user (u8 * s, va_list * args)
172 snat_main_per_thread_data_t *tsm =
173 va_arg (*args, snat_main_per_thread_data_t *);
174 snat_user_t *u = va_arg (*args, snat_user_t *);
175 int verbose = va_arg (*args, int);
176 dlist_elt_t *head, *elt;
177 u32 elt_index, head_index;
179 snat_session_t *sess;
181 s = format (s, "%U: %d dynamic translations, %d static translations\n",
182 format_ip4_address, &u->addr, u->nsessions, u->nstaticsessions);
187 if (u->nsessions || u->nstaticsessions)
189 head_index = u->sessions_per_user_list_head_index;
190 head = pool_elt_at_index (tsm->list_pool, head_index);
192 elt_index = head->next;
193 elt = pool_elt_at_index (tsm->list_pool, elt_index);
194 session_index = elt->value;
196 while (session_index != ~0)
198 sess = pool_elt_at_index (tsm->sessions, session_index);
200 s = format (s, " %U\n", format_snat_session, tsm, sess);
202 elt_index = elt->next;
203 elt = pool_elt_at_index (tsm->list_pool, elt_index);
204 session_index = elt->value;
212 format_snat_static_mapping (u8 * s, va_list * args)
214 snat_static_mapping_t *m = va_arg (*args, snat_static_mapping_t *);
215 nat44_lb_addr_port_t *local;
217 if (is_identity_static_mapping (m))
219 if (is_addr_only_static_mapping (m))
220 s = format (s, "identity mapping %U",
221 format_ip4_address, &m->local_addr);
223 s = format (s, "identity mapping %U %U:%d",
224 format_nat_protocol, m->proto,
225 format_ip4_address, &m->local_addr, m->local_port);
228 pool_foreach (local, m->locals,
230 s = format (s, " vrf %d", local->vrf_id);
237 if (is_addr_only_static_mapping (m))
238 s = format (s, "local %U external %U vrf %d %s %s",
239 format_ip4_address, &m->local_addr,
240 format_ip4_address, &m->external_addr,
242 m->twice_nat == TWICE_NAT ? "twice-nat" :
243 m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
244 is_out2in_only_static_mapping (m) ? "out2in-only" : "");
247 if (is_lb_static_mapping (m))
249 s = format (s, "%U external %U:%d %s %s",
250 format_nat_protocol, m->proto,
251 format_ip4_address, &m->external_addr, m->external_port,
252 m->twice_nat == TWICE_NAT ? "twice-nat" :
253 m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
254 is_out2in_only_static_mapping (m) ? "out2in-only" : "");
257 pool_foreach (local, m->locals,
259 s = format (s, "\n local %U:%d vrf %d probability %d\%",
260 format_ip4_address, &local->addr, local->port,
261 local->vrf_id, local->probability);
267 s = format (s, "%U local %U:%d external %U:%d vrf %d %s %s",
268 format_nat_protocol, m->proto,
269 format_ip4_address, &m->local_addr, m->local_port,
270 format_ip4_address, &m->external_addr, m->external_port,
272 m->twice_nat == TWICE_NAT ? "twice-nat" :
273 m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
274 is_out2in_only_static_mapping (m) ? "out2in-only" : "");
280 format_snat_static_map_to_resolve (u8 * s, va_list * args)
282 snat_static_map_resolve_t *m = va_arg (*args, snat_static_map_resolve_t *);
283 vnet_main_t *vnm = vnet_get_main ();
286 s = format (s, "local %U external %U vrf %d",
287 format_ip4_address, &m->l_addr,
288 format_vnet_sw_if_index_name, vnm, m->sw_if_index, m->vrf_id);
290 s = format (s, "%U local %U:%d external %U:%d vrf %d",
291 format_nat_protocol, m->proto,
292 format_ip4_address, &m->l_addr, m->l_port,
293 format_vnet_sw_if_index_name, vnm, m->sw_if_index,
294 m->e_port, m->vrf_id);
300 * fd.io coding-style-patch-verification: ON
303 * eval: (c-set-style "gnu")