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_det.h>
24 unformat_snat_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 = SNAT_PROTOCOL_##N;
38 format_snat_protocol (u8 * s, va_list * args)
40 u32 i = va_arg (*args, u32);
45 #define _(N, j, n, str) case SNAT_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 snat_session_key_t *key = va_arg (*args, snat_session_key_t *);
80 s = format (s, "%U proto %U port %d fib %d",
81 format_ip4_address, &key->addr,
82 format_snat_protocol, key->protocol,
83 clib_net_to_host_u16 (key->port), key->fib_index);
88 format_static_mapping_key (u8 * s, va_list * args)
90 snat_session_key_t *key = va_arg (*args, snat_session_key_t *);
92 s = format (s, "%U proto %U port %d fib %d",
93 format_ip4_address, &key->addr,
94 format_snat_protocol, key->protocol, key->port, key->fib_index);
99 format_snat_session_state (u8 * s, va_list * args)
101 u32 i = va_arg (*args, u32);
106 #define _(v, N, str) case SNAT_SESSION_##N: t = (u8 *) str; break;
107 foreach_snat_session_state
110 t = format (t, "unknown");
112 s = format (s, "%s", t);
117 format_snat_session (u8 * s, va_list * args)
119 snat_main_per_thread_data_t *sm =
120 va_arg (*args, snat_main_per_thread_data_t *);
121 snat_session_t *sess = va_arg (*args, snat_session_t *);
123 if (snat_is_unk_proto_session (sess))
125 s = format (s, " i2o %U proto %u fib %u\n",
126 format_ip4_address, &sess->in2out.addr,
127 clib_net_to_host_u16 (sess->in2out.port),
128 sess->in2out.fib_index);
129 s = format (s, " o2i %U proto %u fib %u\n",
130 format_ip4_address, &sess->out2in.addr,
131 clib_net_to_host_u16 (sess->out2in.port),
132 sess->out2in.fib_index);
136 s = format (s, " i2o %U\n", format_snat_key, &sess->in2out);
137 s = format (s, " o2i %U\n", format_snat_key, &sess->out2in);
139 if (is_ed_session (sess) || is_fwd_bypass_session (sess))
141 if (is_twice_nat_session (sess))
143 s = format (s, " external host o2i %U:%d i2o %U:%d\n",
144 format_ip4_address, &sess->ext_host_addr,
145 clib_net_to_host_u16 (sess->ext_host_port),
146 format_ip4_address, &sess->ext_host_nat_addr,
147 clib_net_to_host_u16 (sess->ext_host_nat_port));
151 if (sess->ext_host_addr.as_u32)
152 s = format (s, " external host %U:%u\n",
153 format_ip4_address, &sess->ext_host_addr,
154 clib_net_to_host_u16 (sess->ext_host_port));
157 s = format (s, " index %llu\n", sess - sm->sessions);
158 s = format (s, " last heard %.2f\n", sess->last_heard);
159 s = format (s, " total pkts %d, total bytes %lld\n",
160 sess->total_pkts, sess->total_bytes);
161 if (snat_is_session_static (sess))
162 s = format (s, " static translation\n");
164 s = format (s, " dynamic translation\n");
165 if (is_fwd_bypass_session (sess))
166 s = format (s, " forwarding-bypass\n");
167 if (is_lb_session (sess))
168 s = format (s, " load-balancing\n");
169 if (is_twice_nat_session (sess))
170 s = format (s, " twice-nat\n");
176 format_snat_user (u8 * s, va_list * args)
178 snat_main_per_thread_data_t *sm =
179 va_arg (*args, snat_main_per_thread_data_t *);
180 snat_user_t *u = va_arg (*args, snat_user_t *);
181 int verbose = va_arg (*args, int);
182 dlist_elt_t *head, *elt;
183 u32 elt_index, head_index;
185 snat_session_t *sess;
187 s = format (s, "%U: %d dynamic translations, %d static translations\n",
188 format_ip4_address, &u->addr, u->nsessions, u->nstaticsessions);
193 if (u->nsessions || u->nstaticsessions)
195 head_index = u->sessions_per_user_list_head_index;
196 head = pool_elt_at_index (sm->list_pool, head_index);
198 elt_index = head->next;
199 elt = pool_elt_at_index (sm->list_pool, elt_index);
200 session_index = elt->value;
202 while (session_index != ~0)
204 sess = pool_elt_at_index (sm->sessions, session_index);
206 s = format (s, " %U\n", format_snat_session, sm, sess);
208 elt_index = elt->next;
209 elt = pool_elt_at_index (sm->list_pool, elt_index);
210 session_index = elt->value;
218 format_snat_static_mapping (u8 * s, va_list * args)
220 snat_static_mapping_t *m = va_arg (*args, snat_static_mapping_t *);
221 nat44_lb_addr_port_t *local;
223 if (is_identity_static_mapping (m))
225 if (is_addr_only_static_mapping (m))
226 s = format (s, "identity mapping %U",
227 format_ip4_address, &m->local_addr);
229 s = format (s, "identity mapping %U %U:%d",
230 format_snat_protocol, m->proto,
231 format_ip4_address, &m->local_addr, m->local_port);
234 pool_foreach (local, m->locals,
236 s = format (s, " vrf %d", local->vrf_id);
243 if (is_addr_only_static_mapping (m))
244 s = format (s, "local %U external %U vrf %d %s %s",
245 format_ip4_address, &m->local_addr,
246 format_ip4_address, &m->external_addr,
248 m->twice_nat == TWICE_NAT ? "twice-nat" :
249 m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
250 is_out2in_only_static_mapping (m) ? "out2in-only" : "");
253 if (is_lb_static_mapping (m))
255 s = format (s, "%U external %U:%d %s %s",
256 format_snat_protocol, m->proto,
257 format_ip4_address, &m->external_addr, m->external_port,
258 m->twice_nat == TWICE_NAT ? "twice-nat" :
259 m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
260 is_out2in_only_static_mapping (m) ? "out2in-only" : "");
263 pool_foreach (local, m->locals,
265 s = format (s, "\n local %U:%d vrf %d probability %d\%",
266 format_ip4_address, &local->addr, local->port,
267 local->vrf_id, local->probability);
273 s = format (s, "%U local %U:%d external %U:%d vrf %d %s %s",
274 format_snat_protocol, m->proto,
275 format_ip4_address, &m->local_addr, m->local_port,
276 format_ip4_address, &m->external_addr, m->external_port,
278 m->twice_nat == TWICE_NAT ? "twice-nat" :
279 m->twice_nat == TWICE_NAT_SELF ? "self-twice-nat" : "",
280 is_out2in_only_static_mapping (m) ? "out2in-only" : "");
286 format_snat_static_map_to_resolve (u8 * s, va_list * args)
288 snat_static_map_resolve_t *m = va_arg (*args, snat_static_map_resolve_t *);
289 vnet_main_t *vnm = vnet_get_main ();
292 s = format (s, "local %U external %U vrf %d",
293 format_ip4_address, &m->l_addr,
294 format_vnet_sw_if_index_name, vnm, m->sw_if_index, m->vrf_id);
296 s = format (s, "%U local %U:%d external %U:%d vrf %d",
297 format_snat_protocol, m->proto,
298 format_ip4_address, &m->l_addr, m->l_port,
299 format_vnet_sw_if_index_name, vnm, m->sw_if_index,
300 m->e_port, m->vrf_id);
306 format_det_map_ses (u8 * s, va_list * args)
308 snat_det_map_t *det_map = va_arg (*args, snat_det_map_t *);
309 ip4_address_t in_addr, out_addr;
310 u32 in_offset, out_offset;
311 snat_det_session_t *ses = va_arg (*args, snat_det_session_t *);
312 u32 *i = va_arg (*args, u32 *);
314 u32 user_index = *i / SNAT_DET_SES_PER_USER;
316 clib_host_to_net_u32 (clib_net_to_host_u32 (det_map->in_addr.as_u32) +
319 clib_net_to_host_u32 (in_addr.as_u32) -
320 clib_net_to_host_u32 (det_map->in_addr.as_u32);
321 out_offset = in_offset / det_map->sharing_ratio;
323 clib_host_to_net_u32 (clib_net_to_host_u32 (det_map->out_addr.as_u32) +
327 "in %U:%d out %U:%d external host %U:%d state: %U expire: %d\n",
328 format_ip4_address, &in_addr, clib_net_to_host_u16 (ses->in_port),
329 format_ip4_address, &out_addr,
330 clib_net_to_host_u16 (ses->out.out_port), format_ip4_address,
331 &ses->out.ext_host_addr,
332 clib_net_to_host_u16 (ses->out.ext_host_port),
333 format_snat_session_state, ses->state, ses->expire);
339 format_nat44_reass_trace (u8 * s, va_list * args)
341 CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
342 CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
343 nat44_reass_trace_t *t = va_arg (*args, nat44_reass_trace_t *);
345 s = format (s, "NAT44_REASS: sw_if_index %d, next index %d, status %s",
346 t->sw_if_index, t->next_index,
347 t->cached ? "cached" : "translated");
353 * fd.io coding-style-patch-verification: ON
356 * eval: (c-set-style "gnu")