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authorMatus Fabian <matfabia@cisco.com>2017-06-06 04:53:28 -0700
committerOle Trøan <otroan@employees.org>2017-06-08 11:39:53 +0000
commit06596c54dc51e35222737b01c617cc675505a260 (patch)
tree0ee02baf650e9ab217ee4c3c64913dfac6ce68ff /src/plugins/snat/snat.h
parent2fcc49d9c6a66c49148d5790f6af38ab2f3b4be6 (diff)
NAT64: Add NAT64 support for snat plugin (VPP-699)
Basic NAT64 feature (no hairpinning, no multi-thread). Change-Id: I392fccbce93e70c117f4a9a7ec7cf08d6c537f2d Signed-off-by: Matus Fabian <matfabia@cisco.com>
Diffstat (limited to 'src/plugins/snat/snat.h')
-rw-r--r--src/plugins/snat/snat.h10
1 files changed, 8 insertions, 2 deletions
diff --git a/src/plugins/snat/snat.h b/src/plugins/snat/snat.h
index d76026cdc86..016c2ff55df 100644
--- a/src/plugins/snat/snat.h
+++ b/src/plugins/snat/snat.h
@@ -30,8 +30,10 @@
#define SNAT_UDP_TIMEOUT 300
+#define SNAT_UDP_TIMEOUT_MIN 120
#define SNAT_TCP_TRANSITORY_TIMEOUT 240
#define SNAT_TCP_ESTABLISHED_TIMEOUT 7440
+#define SNAT_TCP_INCOMING_SYN 6
#define SNAT_ICMP_TIMEOUT 60
/* Key */
@@ -383,14 +385,15 @@ typedef struct {
u16 sequence;
} icmp_echo_header_t;
-always_inline snat_protocol_t
+always_inline u32
ip_proto_to_snat_proto (u8 ip_proto)
{
- snat_protocol_t snat_proto = ~0;
+ u32 snat_proto = ~0;
snat_proto = (ip_proto == IP_PROTOCOL_UDP) ? SNAT_PROTOCOL_UDP : snat_proto;
snat_proto = (ip_proto == IP_PROTOCOL_TCP) ? SNAT_PROTOCOL_TCP : snat_proto;
snat_proto = (ip_proto == IP_PROTOCOL_ICMP) ? SNAT_PROTOCOL_ICMP : snat_proto;
+ snat_proto = (ip_proto == IP_PROTOCOL_ICMP6) ? SNAT_PROTOCOL_ICMP : snat_proto;
return snat_proto;
}
@@ -445,6 +448,9 @@ clib_error_t * snat_api_init(vlib_main_t * vm, snat_main_t * sm);
int snat_set_workers (uword * bitmap);
int snat_interface_add_del(u32 sw_if_index, u8 is_inside, int is_del);
int snat_add_interface_address(snat_main_t *sm, u32 sw_if_index, int is_del);
+uword unformat_snat_protocol(unformat_input_t * input, va_list * args);
+u8 * format_snat_protocol(u8 * s, va_list * args);
+
static_always_inline u8
icmp_is_error_message (icmp46_header_t * icmp)
{
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/*
 * Copyright (c) 2016 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.
 */

#include <vnet/vnet.h>

#include <vnet/mfib/mfib_itf.h>
#include <vnet/mfib/mfib_signal.h>

mfib_itf_t *mfib_itf_pool;

index_t
mfib_itf_create (u32 sw_if_index,
                 mfib_itf_flags_t mfi_flags)
{
    mfib_itf_t *mfib_itf;

    pool_get_aligned(mfib_itf_pool, mfib_itf,
                     CLIB_CACHE_LINE_BYTES);

    mfib_itf->mfi_sw_if_index = sw_if_index;
    mfib_itf->mfi_flags = mfi_flags;
    mfib_itf->mfi_si = INDEX_INVALID;

    return (mfib_itf - mfib_itf_pool);
}

void
mfib_itf_delete (mfib_itf_t *mfi)
{
    mfib_signal_remove_itf(mfi);
    pool_put(mfib_itf_pool, mfi);
}

u8 *
format_mfib_itf (u8 * s, va_list * args)
{
    mfib_itf_t *mfib_itf;
    vnet_main_t *vnm;
    index_t mfi;

    mfi = va_arg (*args, index_t);

    vnm = vnet_get_main();
    mfib_itf = mfib_itf_get(mfi);

    if (~0 != mfib_itf->mfi_sw_if_index)
    {
        return (format(s, " %U: %U",
                       format_vnet_sw_interface_name,
                       vnm,
                       vnet_get_sw_interface(vnm,
                                             mfib_itf->mfi_sw_if_index),
                       format_mfib_itf_flags, mfib_itf->mfi_flags));
    }
    else
    {
        return (format(s, " local: %U",
                       format_mfib_itf_flags, mfib_itf->mfi_flags));
    }
    return (s);
}

static clib_error_t *
show_mfib_itf_command (vlib_main_t * vm,
                        unformat_input_t * input,
                        vlib_cli_command_t * cmd)
{
    index_t mfii;

    if (unformat (input, "%d", &mfii))
    {
        /*
         * show one in detail
         */
        if (!pool_is_free_index(mfib_itf_pool, mfii))
        {
            vlib_cli_output (vm, "%d@%U",
                             mfii,
                             format_mfib_itf, mfii);
        }
        else
        {
            vlib_cli_output (vm, "itf %d invalid", mfii);
        }
    }
    else
    {
        /*
         * show all
         */
        vlib_cli_output (vm, "mFIB interfaces::");
        pool_foreach_index(mfii, mfib_itf_pool,
        ({
            vlib_cli_output (vm, "%d@%U",
                             mfii,
                             format_mfib_itf, mfii);
        }));
    }

    return (NULL);
}

/*?
 * This commnad displays an MFIB interface, or all interfaces, indexed by their unique
 * numerical indentifier.
 ?*/
VLIB_CLI_COMMAND (show_mfib_itf, static) = {
  .path = "show mfib interface",
  .function = show_mfib_itf_command,
  .short_help = "show mfib interface",
};