/*
* Copyright (c) 2015 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.
*/
import org.openvpp.vppjapi.*;
public class demo {
public static void main (String[] args) throws Exception {
vppApi api = new vppApi ("JavaTest");
System.out.printf ("Connected OK...");
String intlist;
int [] contexts;
int i, limit;
int trips;
int rv, errors, saved_error;
long before, after;
if (false)
{
intlist = api.getInterfaceList ("");
System.out.printf ("Unfiltered interface list:\n%s", intlist);
trips = 0;
contexts = new int[6];
for (i = 0; i < 6; i++)
{
contexts[i] = api.swInterfaceSetFlags
(5 + i /* sw_if_index */,
(byte)1 /* admin_up */,
(byte)1 /* link_up (ignored) */,
(byte)0 /* deleted */);
}
/* Thread.sleep (1); */
errors = 0;
saved_error = 0;
for (i = 0; i < 6; i ++)
{
while (true)
{
rv = api.getRetval (contexts[i], 1 /* release */);
if (rv != -77)
break;
Thread.sleep (1);
trips++;
}
if (rv < 0)
{
saved_error = rv;
errors++;
}
}
if (errors == 0)
System.out.printf ("intfcs up...\n");
else
System.out.printf
("%d errors, last error %d...\n", errors, saved_error);
}
limit = 250000;
saved_error = 0;
errors = 0;
contexts = new int [limit];
byte [] address = new byte [4];
byte [] zeros = new byte [4];
address[0] = (byte)192;
address[1] = (byte)168;
address[2] = (byte)2;
address[3] = (byte)1;
for (i = 0; i < 4; i++)
zeros[i] = 0;
System.out.printf ("start %d route ops ...", limit);
before = System.currentTimeMillis();
for (i = 0; i < limit; i++) {
contexts[i] = api.ipAddDelRoute
(0 /* int nextHopSwIfIndex */,
0 /* int vrfId */,
0 /* int lookupInVrf */,
0 /* int resolveAttempts */,
0 /* int classifyTableIndex */,
(byte)0 /* byte createVrfIfNeeded */,
(byte)0 /* byte resolveIfNeeded */,
(byte)1 /* byte isAdd */,
(byte)1 /* byte isDrop */,
(byte)0 /* byte isIpv6 */,
(byte)0 /* byte isLocal */,
(byte)0 /* byte isClassify */,
(byte)0 /* byte isMultipath */,
(byte)0 /* byte notLast */,
(byte)0 /* byte nextHopWeight */,
(byte)32 /* byte dstAddressLength */,
address,
zeros);
address[3] += 1;
if (address[3] == 0)
{
address[2] += 1;
if (address[2] == 0)
{
address[1] += 1;
{
if (address[1] == 0)
{
address[0] += 1;
}
}
}
}
}
trips = 0;
for (i = 0; i < limit; i++)
{
while (true)
{
rv = api.getRetval/*
* gre_interface.c: gre interfaces
*
* Copyright (c) 2012 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 <gre/gre.h>
#include <vnet/ip/format.h>
#include <vnet/fib/fib_table.h>
#include <vnet/adj/adj_midchain.h>
#include <vnet/adj/adj_nbr.h>
#include <vnet/mpls/mpls.h>
#include <vnet/l2/l2_input.h>
#include <vnet/teib/teib.h>
u8 *
format_gre_tunnel_type (u8 *s, va_list *args)
{
gre_tunnel_type_t type = va_arg (*args, int);
switch (type)
{
#define _(n, v) \
case GRE_TUNNEL_TYPE_##n: \
s = format (s, "%s", v); \
break;
foreach_gre_tunnel_type
#undef _
}
return (s);
}
static u8 *
format_gre_tunnel (u8 *s, va_list *args)
{
gre_tunnel_t *t = va_arg (*args, gre_tunnel_t *);
s = format (s, "[%d] instance %d src %U dst %U fib-idx %d sw-if-idx %d ",
t->dev_instance, t->user_instance, format_ip46_address,
&t->tunnel_src, IP46_TYPE_ANY, format_ip46_address,
&t->tunnel_dst.fp_addr, IP46_TYPE_ANY, t->outer_fib_index,
t->sw_if_index);
s = format (s, "payload %U ", format_gre_tunnel_type, t->type);
s = format (s, "%U ", format_tunnel_mode, t->mode);
if (t->type == GRE_TUNNEL_TYPE_ERSPAN)
s = format (s, "session %d ", t->session_id);
if (t->type != GRE_TUNNEL_TYPE_L3)
s = format (s, "l2-adj-idx %d ", t->l2_adj_index);
return s;
}
static gre_tunnel_t *
gre_tunnel_db_find (const vnet_gre_tunnel_add_del_args_t *a,
u32 outer_fib_index, gre_tunnel_key_t *key)
{
gre_main_t *gm = &gre_main;
uword *p;
if (!a->is_ipv6)
{
gre_mk_key4 (a->src.ip4, a->dst.ip4, outer_fib_index, a->type, a->mode,
a->session_id, &key->gtk_v4);
p = hash_get_mem (gm->tunnel_by_key4, &key->gtk_v4);
}
else
{
gre_mk_key6 (&a->src.ip6, &a->dst.ip6, outer_fib_index, a->type, a->mode,
a->session_id, &key->gtk_v6);
p = hash_get_mem (gm->tunnel_by_key6, &key->gtk_v6);
}
if (NULL == p)
return (NULL);
return (pool_elt_at_index (gm->tunnels, p[0]));
}
static void
gre_tunnel_db_add (gre_tunnel_t *t, gre_tunnel_key_t *key)
{
gre_main_t *gm = &gre_main;
if (t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6)
{
hash_set_mem_alloc (&gm->tunnel_by_key6, &key->gtk_v6, t->dev_instance);
}
else
{
hash_set_mem_alloc (&gm->tunnel_by_key4, &key->gtk_v4, t->dev_instance);
}
}
static void
gre_tunnel_db_remove (gre_tunnel_t *t, gre_tunnel_key_t *key)
{
gre_main_t *gm = &gre_main;
if (t->tunnel_dst.fp_proto == FIB_PROTOCOL_IP6)
{
hash_unset_mem_free (&gm->tunnel_by_key6, &key->gtk_v6);
}
else
{
hash_unset_mem_free (&gm->tunnel_by_key4, &key->gtk_v4);
}
}
/**
* gre_tunnel_stack
*
* 'stack' (resolve the recursion for) the tunnel's midchain adjacency
*/
void
gre_tunnel_stack (adj_index_t ai)
{
gre_main_t *gm = &gre_main;
ip_adjacency_t *adj;
gre_tunnel_t *gt;
u32 sw_if_index;
adj = adj_get (ai);
sw_if_index = adj->rewrite_header.sw_if_index;
if ((vec_len (gm->tunnel_index_by_sw_if_index) <= sw_if_index) ||
(~0 == gm->tunnel_index_by_sw_if_index[sw_if_index]))
return;
gt = pool_elt_at_index (gm->tunnels,
gm->tunnel_index_by_sw_if_index[sw_if_index]);
if ((vnet_hw_interface_get_flags (vnet_get_main (), gt->hw_if_index) &
VNET_HW_INTERFACE_FLAG_LINK_UP) == 0)
{
adj_midchain_delegate_unstack (ai);
}
else
{
adj_midchain_delegate_stack (ai, gt->outer_fib_index, >->tunnel_dst);
}
}
/**
* mgre_tunnel_stack
*
* 'stack' (resolve the recursion for) the tunnel's midchain adjacency
*/
static void
mgre_tunnel_stack (adj_index_t ai)
{
gre_main_t *gm = &gre_main;
const ip_adjacency_t *adj;
const gre_tunnel_t *gt;
u32 sw_if_index;
adj = adj_get (ai);
sw_if_index = adj->rewrite_header.sw_if_index;
if ((vec_len (gm->tunnel_index_by_sw_if_index) <= sw_if_index) ||
(~0 == gm->tunnel_index_by_sw_if_index[sw_if_index]))
return;
gt = pool_elt_at_index (gm->tunnels,
gm->tunnel_index_by_sw_if_index[sw_if_index]);
if ((vnet_hw_interface_get_flags (vnet_get_main (), gt->hw_if_index) &
VNET_HW_INTERFACE_FLAG_LINK_UP) == 0)
{
adj_midchain_delegate_unstack (ai);
}
else
{
const teib_entry_t *ne;
ne = teib_entry_find_46 (sw_if_index, adj->ia_nh_proto,
&adj->sub_type.nbr.next_hop);
if (NULL != ne)
teib_entry_adj_stack (ne, ai);
}
}
/**
* @brief Call back when restacking all adjacencies on a GRE interface
*/
static adj_walk_rc_t
gre_adj_walk_cb (adj_index_t ai, void *ctx)
{
gre_tunnel_stack (ai);
return (ADJ_WALK_RC_CONTINUE);
}
static adj_walk_rc_t
mgre_adj_walk_cb (adj_index_t ai, void *ctx)
{
mgre_tunnel_stack (ai);
return (ADJ_WALK_RC_CONTINUE);
}
static void
gre_tunnel_restack (gre_tunnel_t *gt)
{
fib_protocol_t proto;
/*
* walk all the adjacencies on th GRE interface and restack them
*/
FOR_EACH_FIB_IP_PROTOCOL (proto)
{
switch (gt->mode)
{
case TUNNEL_MODE_P2P:
adj_nbr_walk (gt->sw_if_index, proto, gre_adj_walk_cb, NULL);
break;
case TUNNEL_MODE_MP:
adj_nbr_walk (gt->sw_if_index, proto, mgre_adj_walk_cb, NULL);
break;
}
}
}
static void
gre_teib_mk_key (const gre_tunnel_t *t, const teib_entry_t *ne,
gre_tunnel_key_t *key)
{
const fib_prefix_t *nh;
nh = teib_entry_get_nh (ne);
/* construct the key using mode P2P so it can be found in the DP */
if (FIB_PROTOCOL_IP4 == nh->fp_proto)
gre_mk_key4 (t->tunnel_src.ip4, nh->fp_addr.ip4,
teib_entry_get_fib_index (ne), t->type, TUNNEL_MODE_P2P, 0,
&key->gtk_v4);
else
gre_mk_key6 (&t->tunnel_src.ip6, &nh->fp_addr.ip6,
teib_entry_get_fib_index (ne), t->type, TUNNEL_MODE_P2P, 0,
&key->gtk_v6);
}
/**
* An TEIB entry has been added
*/
static void
gre_teib_entry_added (const teib_entry_t *ne)
{
gre_main_t *gm = &gre_main;
const ip_address_t *nh;
gre_tunnel_key_t key;
gre_tunnel_t *t;
u32 sw_if_index;
u32 t_idx;
sw_if_index = teib_entry_get_sw_if_index (ne);
if (vec_len (gm->tunnel_index_by_sw_if_index) < sw_if_index)
return;
t_idx = gm->tunnel_index_by_sw_if_index[sw_if_index];
if (INDEX_INVALID == t_idx)
return;
/* entry has been added on an interface for which there is a GRE tunnel */
t = pool_elt_at_index (gm->tunnels, t_idx);
if (t->mode != TUNNEL_MODE_MP)
return;
/* the next-hop (underlay) of the NHRP entry will form part of the key for
* ingress lookup to match packets to this interface */
gre_teib_mk_key (t, ne, &key);
gre_tunnel_db_add (t, &key);
/* update the rewrites for each of the adjacencies for this peer (overlay)
* using the next-hop (underlay) */
mgre_walk_ctx_t ctx = { .t = t, .ne = ne };
nh = teib_entry_get_peer (ne);
adj_nbr_walk_nh (
teib_entry_get_sw_if_index (ne),
(AF_IP4 == ip_addr_version (nh) ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6),
&ip_addr_46 (nh), mgre_mk_complete_walk, &ctx);
}
static void
gre_teib_entry_deleted (const teib_entry_t *ne)
{
gre_main_t *gm = &gre_main;
const ip_address_t *nh;
gre_tunnel_key_t key;
gre_tunnel_t *t;
u32 sw_if_index;
u32 t_idx;
sw_if_index = teib_entry_get_sw_if_index (ne);
if (vec_len (gm->tunnel_index_by_sw_if_index) < sw_if_index)
return;
t_idx = gm->tunnel_index_by_sw_if_index[sw_if_index];
if (INDEX_INVALID == t_idx)
return;
t = pool_elt_at_index (gm->tunnels, t_idx);
/* remove the next-hop as an ingress lookup key */
gre_teib_mk_key (t, ne, &key);
gre_tunnel_db_remove (t, &key);
nh = teib_entry_get_peer (ne);
/* make all the adjacencies incomplete */
adj_nbr_walk_nh (
teib_entry_get_sw_if_index (ne),
(AF_IP4 == ip_addr_version (nh) ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6),
&ip_addr_46 (nh), mgre_mk_incomplete_walk, t);
}
static walk_rc_t
gre_tunnel_delete_teib_walk (index_t nei, void *ctx)
{
gre_tunnel_t *t = ctx;
gre_tunnel_key_t key;
gre_teib_mk_key (t, teib_entry_get (nei), &key);
gre_tunnel_db_remove (t, &key);
return (WALK_CONTINUE);
}
static walk_rc_t
gre_tunnel_add_teib_walk (index_t nei, void *ctx)
{
gre_tunnel_t *t = ctx;
gre_tunnel_key_t key = {};
gre_teib_mk_key (t, teib_entry_get (nei), &key);
gre_tunnel_db_add (t, &key);
return (WALK_CONTINUE);
}
static int
vnet_gre_tunnel_add (vnet_gre_tunnel_add_del_args_t *a, u32 outer_fib_index,
u32 *sw_if_indexp)
{
gre_main_t *gm = &gre_main;
vnet_main_t *vnm = gm->vnet_main;
gre_tunnel_t *t;
vnet_hw_interface_t *hi;
u32 hw_if_index, sw_if_index;
u8 is_ipv6 = a->is_ipv6;
gre_tunnel_key_t key;
t = gre_tunnel_db_find (a, outer_fib_index, &key);
if (NULL != t)
return VNET_API_ERROR_IF_ALREADY_EXISTS;
pool_get_aligned (gm->tunnels, t, CLIB_CACHE_LINE_BYTES);
clib_memset (t, 0, sizeof (*t));
/* Reconcile the real dev_instance and a possible requested instance */
u32 t_idx = t - gm->tunnels; /* tunnel index (or instance) */
u32 u_idx = a->instance; /* user specified instance */
if (u_idx == ~0)
u_idx = t_idx;
if (hash_get (gm->instance_used, u_idx))
{
pool_put (gm->tunnels, t);
return VNET_API_ERROR_INSTANCE_IN_USE;
}
hash_set (gm->instance_used, u_idx, 1);
t->dev_instance = t_idx; /* actual */
t->user_instance = u_idx; /* name */
t->type = a->type;
t->mode = a->mode;
t->flags = a->flags;
if (t->type == GRE_TUNNEL_TYPE_ERSPAN)
t->session_id = a->session_id;
if (t->type == GRE_TUNNEL_TYPE_L3)
{
if (t->mode == TUNNEL_MODE_P2P)
hw_if_index =
vnet_register_interface (vnm, gre_device_class.index, t_idx,
gre_hw_interface_class.index, t_idx);
else
hw_if_index =
vnet_register_interface (vnm, gre_device_class.index, t_idx,
mgre_hw_interface_class.index, t_idx);
}
else
{
vnet_eth_interface_registration_t eir = {};
/* Default MAC address (d00b:eed0:0000 + sw_if_index) */
u8 address[6] = {
0xd0, 0x0b, 0xee, 0xd0, (u8) (t_idx >> 8), (u8) t_idx
};
eir.dev_class_index = gre_device_class.index;
eir.dev_instance = t_idx;
eir.address = address;
hw_if_index = vnet_eth_register_interface (vnm, &eir);
}
/* Set GRE tunnel interface output node (not used for L3 payload) */
if (GRE_TUNNEL_TYPE_ERSPAN == t->type)
vnet_set_interface_output_node (vnm, hw_if_index,
gre_erspan_encap_node.index);
else
vnet_set_interface_output_node (vnm, hw_if_index,
gre_teb_encap_node.index);
hi = vnet_get_hw_interface (vnm, hw_if_index);
sw_if_index = hi->sw_if_index;
t->hw_if_index = hw_if_index;
t->outer_fib_index = outer_fib_index;
t->sw_if_index = sw_if_index;
t->l2_adj_index = ADJ_INDEX_INVALID;
vec_validate_init_empty (gm->tunnel_index_by_sw_if_index, sw_if_index, ~0);
gm->tunnel_index_by_sw_if_index[sw_if_index] = t_idx;
if (!is_ipv6)
{
hi->frame_overhead = sizeof (gre_header_t) + sizeof (ip4_header_t);
hi->min_frame_size = hi->frame_overhead + 64;
}
else
{
hi->frame_overhead = sizeof (gre_header_t) + sizeof (ip6_header_t);
hi->min_frame_size = hi->frame_overhead + 64;
}
/* Standard default gre MTU. */
vnet_sw_interface_set_mtu (vnm, sw_if_index, 9000);
/*
* source the FIB entry for the tunnel's destination
* and become a child thereof. The tunnel will then get poked
* when the forwarding for the entry updates, and the tunnel can
* re-stack accordingly
*/
clib_memcpy (&t->tunnel_src, &a->src, sizeof (t->tunnel_src));
t->tunnel_dst.fp_len = !is_ipv6 ? 32 : 128;
t->tunnel_dst.fp_proto = !is_ipv6 ? FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6;
t->tunnel_dst.fp_addr = a->dst;
gre_tunnel_db_add (t, &key);
if (t->mode == TUNNEL_MODE_MP)
teib_walk_itf (t->sw_if_index, gre_tunnel_add_teib_walk, t);
if (t->type == GRE_TUNNEL_TYPE_ERSPAN)
{
gre_sn_key_t skey;
gre_sn_t *gre_sn;
gre_mk_sn_key (t, &skey);
gre_sn = (gre_sn_t *) hash_get_mem (gm->seq_num_by_key, &skey);
if (gre_sn != NULL)
{
gre_sn->ref_count++;
t->gre_sn = gre_sn;
}
else
{
gre_sn = clib_mem_alloc (sizeof (gre_sn_t));
gre_sn->seq_num = 0;
gre_sn->ref_count = 1;
t->gre_sn = gre_sn;
hash_set_mem_alloc (&gm->seq_num_by_key, &skey, (uword) gre_sn);
}
}
if (t->type != GRE_TUNNEL_TYPE_L3)
{
t->l2_adj_index = adj_nbr_add_or_lock (
t->tunnel_dst.fp_proto, VNET_LINK_ETHERNET, &zero_addr, sw_if_index);
vnet_set_interface_l3_output_node (gm->vlib_main, sw_if_index,
(u8 *) "tunnel-output-no-count");
gre_update_adj (vnm, t->sw_if_index, t->l2_adj_index);
}
else
{
vnet_set_interface_l3_output_node (gm->vlib_main, sw_if_index,
(u8 *) "tunnel-output");
}
if (sw_if_indexp)
*sw_if_indexp = sw_if_index;
/* register gre46-input nodes */
ip4_register_protocol (IP_PROTOCOL_GRE, gre4_input_node.index);
ip6_register_protocol (IP_PROTOCOL_GRE, gre6_input_node.index);
return 0;
}
static int
vnet_gre_tunnel_delete (vnet_gre_tunnel_add_del_args_t *a, u32 outer_fib_index,
u32 *sw_if_indexp)
{
gre_main_t *gm = &gre_main;
vnet_main_t *vnm = gm->vnet_main;
gre_tunnel_t *t;
gre_tunnel_key_t key;
u32 sw_if_index;
t = gre_tunnel_db_find (a, outer_fib_index, &key);
if (NULL == t)
return VNET_API_ERROR_NO_SUCH_ENTRY;
if (t->mode == TUNNEL_MODE_MP)
teib_walk_itf (t->sw_if_index, gre_tunnel_delete_teib_walk, t);
sw_if_index = t->sw_if_index;
vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */);
/* make sure tunnel is removed from l2 bd or xconnect */
set_int_l2_mode (gm->vlib_main, vnm, MODE_L3, sw_if_index, 0,
L2_BD_PORT_TYPE_NORMAL, 0, 0);
gm->tunnel_index_by_sw_if_index[sw_if_index] = ~0;
if (t->type == GRE_TUNNEL_TYPE_L3)
vnet_delete_hw_interface (vnm, t->hw_if_index);
else
ethernet_delete_interface (vnm, t->hw_if_index);
if (t->l2_adj_index != ADJ_INDEX_INVALID)
{
adj_midchain_delegate_unstack (t->l2_adj_index);
adj_unlock (t->l2_adj_index);
}
ASSERT ((t->type != GRE_TUNNEL_TYPE_ERSPAN) || (t->gre_sn != NULL));
if ((t->type == GRE_TUNNEL_TYPE_ERSPAN) && (t->gre_sn->ref_count-- == 1))
{
gre_sn_key_t skey;
gre_mk_sn_key (t, &skey);
hash_unset_mem_free (&gm->seq_num_by_key, &skey);
clib_mem_free (t->gre_sn);
}
vnet_reset_interface_l3_output_node (gm->vlib_main, sw_if_index);
hash_unset (gm->instance_used, t->user_instance);
gre_tunnel_db_remove (t, &key);
pool_put (gm->tunnels, t);
if (sw_if_indexp)
*sw_if_indexp = sw_if_index;
return 0;
}
int
vnet_gre_tunnel_add_del (vnet_gre_tunnel_add_del_args_t *a, u32 *sw_if_indexp)
{
u32 outer_fib_index;
outer_fib_index = fib_table_find (
(a->is_ipv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4), a->outer_table_id);
if (~0 == outer_fib_index)
return VNET_API_ERROR_NO_SUCH_FIB;
if (a->session_id > GTK_SESSION_ID_MAX)
return VNET_API_ERROR_INVALID_SESSION_ID;
if (a->mode == TUNNEL_MODE_MP && !ip46_address_is_zero (&a->dst))
return (VNET_API_ERROR_INVALID_DST_ADDRESS);
if (a->is_add)
return (vnet_gre_tunnel_add (a, outer_fib_index, sw_if_indexp));
else
return (vnet_gre_tunnel_delete (a, outer_fib_index, sw_if_indexp));
}
clib_error_t *
gre_interface_admin_up_down (vnet_main_t *vnm, u32 hw_if_index, u32 flags)
{
gre_main_t *gm = &gre_main;
vnet_hw_interface_t *hi;
gre_tunnel_t *t;
u32 ti;
hi = vnet_get_hw_interface (vnm, hw_if_index);
if (NULL == gm->tunnel_index_by_sw_if_index ||
hi->sw_if_index >= vec_len (gm->tunnel_index_by_sw_if_index))
return (NULL);
ti = gm->tunnel_index_by_sw_if_index[hi->sw_if_index];
if (~0 == ti)
/* not one of ours */
return (NULL);
t = pool_elt_at_index (gm->tunnels, ti);
if (flags & VNET_SW_INTERFACE_FLAG_ADMIN_UP)
vnet_hw_interface_set_flags (vnm, hw_if_index,
VNET_HW_INTERFACE_FLAG_LINK_UP);
else
vnet_hw_interface_set_flags (vnm, hw_if_index, 0 /* down */);
gre_tunnel_restack (t);
return /* no error */ 0;
}
static clib_error_t *
create_gre_tunnel_command_fn (vlib_main_t *vm, unformat_input_t *input,
vlib_cli_command_t *cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
vnet_gre_tunnel_add_del_args_t _a, *a = &_a;
ip46_address_t src = ip46_address_initializer,
dst = ip46_address_initializer;
u32 instance = ~0;
u32 outer_table_id = 0;
gre_tunnel_type_t t_type = GRE_TUNNEL_TYPE_L3;
tunnel_mode_t t_mode = TUNNEL_MODE_P2P;
tunnel_encap_decap_flags_t flags = TUNNEL_ENCAP_DECAP_FLAG_NONE;
u32 session_id = 0;
int rv;
u8 is_add = 1;
u32 sw_if_index;
clib_error_t *error = NULL;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "del"))
is_add = 0;
else if (unformat (line_input, "instance %d", &instance))
;
else if (unformat (line_input, "src %U", unformat_ip46_address, &src))
;
else if (unformat (line_input, "dst %U", unformat_ip46_address, &dst))
;
else if (unformat (line_input, "outer-table-id %d", &outer_table_id))
;
else if (unformat (line_input, "multipoint"))
t_mode = TUNNEL_MODE_MP;
else if (unformat (line_input, "teb"))
t_type = GRE_TUNNEL_TYPE_TEB;
else if (unformat (line_input, "erspan %d", &session_id))
t_type = GRE_TUNNEL_TYPE_ERSPAN;
else if (unformat (line_input, "flags %U",
unformat_tunnel_encap_decap_flags, &flags))
;
else
{
error = clib_error_return (0, "unknown input `%U'",
format_unformat_error, line_input);
goto done;
}
}
if (ip46_address_is_equal (&src, &dst))
{
error = clib_error_return (0, "src and dst are identical");
goto done;
}
if (t_mode != TUNNEL_MODE_MP && ip46_address_is_zero (&dst))
{
error = clib_error_return (0, "destination address not specified");
goto done;
}
if (ip46_address_is_zero (&src))
{
error = clib_error_return (0, "source address not specified");
goto done;
}
if (ip46_address_is_ip4 (&src) != ip46_address_is_ip4 (&dst))
{
error = clib_error_return (0, "src and dst address must be the same AF");
goto done;
}
clib_memset (a, 0, sizeof (*a));
a->is_add = is_add;
a->outer_table_id = outer_table_id;
a->type = t_type;
a->mode = t_mode;
a->session_id = session_id;
a->is_ipv6 = !ip46_address_is_ip4 (&src);
a->instance = instance;
a->flags = flags;
clib_memcpy (&a->src, &src, sizeof (a->src));
clib_memcpy (&a->dst, &dst, sizeof (a->dst));
rv = vnet_gre_tunnel_add_del (a, &sw_if_index);
switch (rv)
{
case 0:
vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name,
vnet_get_main (), sw_if_index);
break;
case VNET_API_ERROR_IF_ALREADY_EXISTS:
error = clib_error_return (0, "GRE tunnel already exists...");
goto done;
case VNET_API_ERROR_NO_SUCH_FIB:
error = clib_error_return (0, "outer table ID %d doesn't exist\n",
outer_table_id);
goto done;
case VNET_API_ERROR_NO_SUCH_ENTRY:
error = clib_error_return (0, "GRE tunnel doesn't exist");
goto done;
case VNET_API_ERROR_INVALID_SESSION_ID:
error =
clib_error_return (0, "session ID %d out of range\n", session_id);
goto done;
case VNET_API_ERROR_INSTANCE_IN_USE:
error = clib_error_return (0, "Instance is in use");
goto done;
default:
error = clib_error_return (0, "vnet_gre_tunnel_add_del returned %d", rv);
goto done;
}
done:
unformat_free (line_input);
return error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (create_gre_tunnel_command, static) = {
.path = "create gre tunnel",
.short_help = "create gre tunnel src <addr> dst <addr> [instance <n>] "
"[outer-fib-id <fib>] [teb | erspan <session-id>] [del] "
"[multipoint]",
.function = create_gre_tunnel_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
show_gre_tunnel_command_fn (vlib_main_t *vm, unformat_input_t *input,
vlib_cli_command_t *cmd)
{
gre_main_t *gm = &gre_main;
gre_tunnel_t *t;
u32 ti = ~0;
if (pool_elts (gm->tunnels) == 0)
vlib_cli_output (vm, "No GRE tunnels configured...");
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (input, "%d", &ti))
;
else
break;
}
if (~0 == ti)
{
/* *INDENT-OFF* */
pool_foreach (t, gm->tunnels)
{
vlib_cli_output (vm, "%U", format_gre_tunnel, t);
}
/* *INDENT-ON* */
}
else
{
t = pool_elt_at_index (gm->tunnels, ti);
vlib_cli_output (vm, "%U", format_gre_tunnel, t);
}
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_gre_tunnel_command, static) = {
.path = "show gre tunnel",
.function = show_gre_tunnel_command_fn,
};
/* *INDENT-ON* */
const static teib_vft_t gre_teib_vft = {
.nv_added = gre_teib_entry_added,
.nv_deleted = gre_teib_entry_deleted,
};
/* force inclusion from application's main.c */
clib_error_t *
gre_interface_init (vlib_main_t *vm)
{
teib_register (&gre_teib_vft);
return (NULL);
}
VLIB_INIT_FUNCTION (gre_interface_init);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
