/*
* Copyright (c) 2018 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file
* @brief NAT formatting
*/
#include <nat/nat44-ed/nat44_ed.h>
#include <nat/nat44-ed/nat44_ed_inlines.h>
u8 *
format_nat_addr_and_port_alloc_alg (u8 * s, va_list * args)
{
u32 i = va_arg (*args, u32);
u8 *t = 0;
switch (i)
{
#define _(v, N, s) case NAT_ADDR_AND_PORT_ALLOC_ALG_##N: t = (u8 *) s; break;
foreach_nat_addr_and_port_alloc_alg
#undef _
default:
s = format (s, "unknown");
return s;
}
s = format (s, "%s", t);
return s;
}
u8 *
format_snat_session_state (u8 * s, va_list * args)
{
u32 i = va_arg (*args, u32);
u8 *t = 0;
switch (i)
{
#define _(v, N, str) case SNAT_SESSION_##N: t = (u8 *) str; break;
foreach_snat_session_state
#undef _
default:
t = format (t, "unknown");
}
s = format (s, "%s", t);
return s;
}
u8 *
format_snat_session (u8 * s, va_list * args)
{
snat_main_per_thread_data_t *tsm =
va_arg (*args, snat_main_per_thread_data_t *);
snat_session_t *sess = va_arg (*args, snat_session_t *);
if (nat44_ed_is_unk_proto (sess->proto))
{
s = format (s, " i2o %U proto %u fib %u\n",
format_ip4_address, &sess->in2out.addr,
sess->in2out.port, sess->in2out.fib_index);
s =
format (s, " o2i %U proto %u fib %u\n", format_ip4_address,
&sess->out2in.addr, sess->out2in.port, sess->out2in.fib_index);
}
else
{
s = format (s, " i2o %U proto %U port %d fib %d\n", format_ip4_address,
&sess->in2out.addr, format_ip_protocol, sess->proto,
clib_net_to_host_u16 (sess->in2out.port),
sess->in2out.fib_index);
s = format (s, " o2i %U proto %U port %d fib %d\n",
format_ip4_address, &sess->out2in.addr, format_ip_protocol,
sess->proto, clib_net_to_host_u16 (sess->out2in.port),
sess->out2in.fib_index);
}
if (nat44_ed_is_twice_nat_session (sess))
{
s = format (s, " external host o2i %U:%d i2o %U:%d\n",
format_ip4_address, &sess->ext_host_addr,
clib_net_to_host_u16 (sess->ext_host_port),
format_ip4_address, &sess->ext_host_nat_addr,
clib_net_to_host_u16 (sess->ext_host_nat_port));
}
else
{
if (sess->ext_host_addr.as_u32)
s = format (s, " external host %U:%u\n",
format_ip4_address, &sess->ext_host_addr,
clib_net_to_host_u16 (sess->ext_host_port));
}
s = format (s, " i2o flow: %U\n", format_nat_6t_flow, &sess->i2o);
s = format (s, " o2i flow: %U\n", format_nat_6t_flow, &sess->o2i);
s = format (s, " index %llu\n", sess - tsm->sessions);
s = format (s, " last heard %.2f\n", sess->last_heard);
s = format (s, " total pkts %d, total bytes %lld\n",
sess->total_pkts, sess->total_bytes);
if (nat44_ed_is_session_static (sess))
s = format (s, " static translation\n");
else
s = format (s, " dynamic translation\n");
if (na44_ed_is_fwd_bypass_session (sess))
s = format (s, " forwarding-bypass\n");
if (nat44_ed_is_lb_session (sess))
s = format (s, " load-balancing\n");
if (nat44_ed_is_twice_nat_session (sess))
s = format (s, " twice-nat\n");
return s;
}
u8 *
format_snat_static_mapping (u8 * s, va_list * args)
{
snat_static_mapping_t *m = va_arg (*args, snat_static_mapping_t *);
nat44_lb_addr_port_t *local;
if (is_sm_identity_nat (m->flags))
{
if (is_sm_addr_only (m->flags))
s = format (s, "identity mapping %U",
format_ip4_address, &m->local_addr);
else
s = format (s, "identity mapping %U %U:%d", format_ip_protocol,
m->proto, format_ip4_address, &m->local_addr,
clib_net_to_host_u16 (m->local_port));
pool_foreach (local, m->locals)
{
s = format (s, " vrf %d", local->vrf_id);
}
return s;
}
if (is_sm_addr_only (m->flags))
s =
format (s, "local %U external %U vrf %d %s %s", format_ip4_address,
&m->local_addr, format_ip4_address, &m->external_addr, m->vrf_id,
is_sm_twice_nat (m->flags) ?
"twice-nat" :
is_sm_self_twice_nat (m->flags) ? "self-twice-nat" : "",
is_sm_out2in_only (m->flags) ? "out2in-only" : "");
else
{
if (is_sm_lb (m->flags))
{
s =
format (s, "%U external %U:%d %s %s", format_ip_protocol, m->proto,
format_ip4_address, &m->external_addr,
clib_net_to_host_u16 (m->external_port),
is_sm_twice_nat (m->flags) ?
"twice-nat" :
is_sm_self_twice_nat (m->flags) ? "self-twice-nat" : "",
is_sm_out2in_only (m->flags) ? "out2in-only" : "");
pool_foreach (local, m->locals)
{
s = format (s, "\n local %U:%d vrf %d probability %d\%",
format_ip4_address, &local->addr,
clib_net_to_host_u16 (local->port), local->vrf_id,
local->probability);
}
}
else
s = format (s, "%U local %U:%d external %U:%d vrf %d %s %s",
format_ip_protocol, m->proto, format_ip4_address,
&m->local_addr, clib_net_to_host_u16 (m->local_port),
format_ip4_address, &m->external_addr,
clib_net_to_host_u16 (m->external_port), m->vrf_id,
is_sm_twice_nat (m->flags) ?
"twice-nat" :
is_sm_self_twice_nat (m->flags) ? "self-twice-nat" : "",
is_sm_out2in_only (m->flags) ? "out2in-only" : "");
}
return s;
}
u8 *
format_snat_static_map_to_resolve (u8 * s, va_list * args)
{
snat_static_map_resolve_t *m = va_arg (*args, snat_static_map_resolve_t *);
vnet_main_t *vnm = vnet_get_main ();
if (is_sm_addr_only (m->flags))
s = format (s, "local %U external %U vrf %d",
format_ip4_address, &m->l_addr,
format_vnet_sw_if_index_name, vnm, m->sw_if_index, m->vrf_id);
else
s = format (s, "%U local %U:%d external %U:%d vrf %d", format_ip_protocol,
m->proto, format_ip4_address, &m->l_addr,
clib_net_to_host_u16 (m->l_port), format_vnet_sw_if_index_name,
vnm, m->sw_if_index, clib_net_to_host_u16 (m->e_port),
m->vrf_id);
return s;
}
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/