/*
* 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.
*/
/*
*------------------------------------------------------------------
* pot_test.c - test harness for pot plugin
*------------------------------------------------------------------
*/
#include <vat/vat.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <vppinfra/error.h>
#define __plugin_msg_base pot_test_main.msg_id_base
#include <vlibapi/vat_helper_macros.h>
/* Declare message IDs */
#include <ioam/lib-pot/pot.api_enum.h>
#include <ioam/lib-pot/pot.api_types.h>
typedef struct {
/* API message ID base */
u16 msg_id_base;
vat_main_t *vat_main;
} pot_test_main_t;
pot_test_main_t pot_test_main;
static int api_pot_profile_add (vat_main_t *vam)
{
#define MAX_BITS 64
unformat_input_t *input = vam->input;
vl_api_pot_profile_add_t *mp;
u8 *name = NULL;
u64 prime = 0;
u64 secret_share = 0;
u64 secret_key = 0;
u32 bits = MAX_BITS;
u64 lpc = 0, poly2 = 0;
u8 id = 0;
int rv = 0;
int ret;
while (unformat_check_input(input) != UNFORMAT_END_OF_INPUT)
{
if (unformat(input, "name %s", &name))
;
else if(unformat(input, "id %d", &id))
;
else if (unformat(input, "validator-key 0x%Lx", &secret_key))
;
else if (unformat(input, "prime-number 0x%Lx", &prime))
;
else if (unformat(input, "secret-share 0x%Lx", &secret_share))
;
else if (unformat(input, "polynomial-public 0x%Lx", &poly2))
;
else if (unformat(input, "lpc 0x%Lx", &lpc))
;
else if (unformat(input, "bits-in-random %u", &bits))
{
if (bits > MAX_BITS)
bits = MAX_BITS;
}
else
break;
}
if (!name)
{
errmsg ("name required\n");
rv = -.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long *//*
* ipip.c: ipip
*
* 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 aipiped 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 <stddef.h>
#include <vnet/adj/adj_midchain.h>
#include <vnet/ipip/ipip.h>
#include <vnet/vnet.h>
#include <vnet/adj/adj_nbr.h>
#include <vnet/fib/ip4_fib.h>
#include <vnet/fib/ip6_fib.h>
#include <vnet/ip/format.h>
#include <vnet/ipip/ipip.h>
ipip_main_t ipip_main;
/* Packet trace structure */
typedef struct
{
u32 tunnel_id;
u32 length;
ip46_address_t src;
ip46_address_t dst;
} ipip_tx_trace_t;
u8 *
format_ipip_tx_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
ipip_tx_trace_t *t = va_arg (*args, ipip_tx_trace_t *);
s =
format (s, "IPIP: tunnel %d len %d src %U dst %U", t->tunnel_id,
t->length, format_ip46_address, &t->src, IP46_TYPE_ANY,
format_ip46_address, &t->dst, IP46_TYPE_ANY);
return s;
}
static u8 *
ipip_build_rewrite (vnet_main_t * vnm, u32 sw_if_index,
vnet_link_t link_type, const void *dst_address)
{
ip4_header_t *ip4;
ip6_header_t *ip6;
u8 *rewrite = NULL;
ipip_tunnel_t *t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index);
if (!t)
/* not one of ours */
return (0);
switch (t->transport)
{
case IPIP_TRANSPORT_IP4:
vec_validate (rewrite, sizeof (*ip4) - 1);
ip4 = (ip4_header_t *) rewrite;
ip4->ip_version_and_header_length = 0x45;
ip4->ttl = 64;
/* fixup ip4 header length, protocol and checksum after-the-fact */
ip4->src_address.as_u32 = t->tunnel_src.ip4.as_u32;
ip4->dst_address.as_u32 = t->tunnel_dst.ip4.as_u32;
ip4->checksum = ip4_header_checksum (ip4);
if (t->tc_tos != 0xFF)
ip4->tos = t->tc_tos;
break;
case IPIP_TRANSPORT_IP6:
vec_validate (rewrite, sizeof (*ip6) - 1);
ip6 = (ip6_header_t *) rewrite;
ip6->ip_version_traffic_class_and_flow_label =
clib_host_to_net_u32 (6 << 28);
if (t->tc_tos != 0xFF)
ip6_set_traffic_class_network_order (ip6, t->tc_tos);
ip6->hop_limit = 64;
/* fixup ip6 header length and protocol after-the-fact */
ip6->src_address.as_u64[0] = t->tunnel_src.ip6.as_u64[0];
ip6->src_address.as_u64[1] = t->tunnel_src.ip6.as_u64[1];
ip6->dst_address.as_u64[0] = t->tunnel_dst.ip6.as_u64[0];
ip6->dst_address.as_u64[1] = t->tunnel_dst.ip6.as_u64[1];
break;
default:
/* pass through */
;
}
return (rewrite);
}
static void
ipip4_fixup (vlib_main_t * vm, ip_adjacency_t * adj, vlib_buffer_t * b,
const void *data)
{
ip4_header_t *ip4;
const ipip_tunnel_t *t = data;
ip4 = vlib_buffer_get_current (b);
ip4->length = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b));
switch (adj->ia_link)
{
case VNET_LINK_IP6:
ip4->protocol = IP_PROTOCOL_IPV6;
if (t->tc_tos == 0xFF)
ip4->tos =
ip6_traffic_class_network_order ((const ip6_header_t *) (ip4 + 1));
break;
case VNET_LINK_IP4:
ip4->protocol = IP_PROTOCOL_IP_IN_IP;
if (t->tc_tos == 0xFF)
ip4->tos = ((ip4_header_t *) (ip4 + 1))->tos;
break;
default:
break;
}
ip4->checksum = ip4_header_checksum (ip4);
}
static void
ipip6_fixup (vlib_main_t * vm, ip_adjacency_t * adj, vlib_buffer_t * b,
const void *data)
{
ip6_header_t *ip6;
const ipip_tunnel_t *t = data;
ip6 = vlib_buffer_get_current (b);
ip6->payload_length =
clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, b) -
sizeof (*ip6));
switch (adj->ia_link)
{
case VNET_LINK_IP6:
ip6->protocol = IP_PROTOCOL_IPV6;
if (t->tc_tos == 0xFF)
ip6_set_traffic_class_network_order (ip6,
ip6_traffic_class_network_order ((const ip6_header_t *) (ip6 + 1)));
break;
case VNET_LINK_IP4:
ip6->protocol = IP_PROTOCOL_IP_IN_IP;
if (t->tc_tos == 0xFF)
ip6_set_traffic_class_network_order (ip6,
((ip4_header_t *) (ip6 +
1))->tos);
break;
default:
break;
}
}
static void
ipip_tunnel_stack (adj_index_t ai)
{
ip_adjacency_t *adj;
ipip_tunnel_t *t;
u32 sw_if_index;
adj = adj_get (ai);
sw_if_index = adj->rewrite_header.sw_if_index;
t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index);
if (!t)
return;
if ((vnet_hw_interface_get_flags (vnet_get_main (), t->hw_if_index) &
VNET_HW_INTERFACE_FLAG_LINK_UP) == 0)
{
adj_nbr_midchain_unstack (ai);
return;
}
dpo_id_t tmp = DPO_INVALID;
fib_forward_chain_type_t fib_fwd =
t->transport ==
IPIP_TRANSPORT_IP6 ? FIB_FORW_CHAIN_TYPE_UNICAST_IP6 :
FIB_FORW_CHAIN_TYPE_UNICAST_IP4;
fib_entry_contribute_forwarding (t->p2p.fib_entry_index, fib_fwd, &tmp);
if (DPO_LOAD_BALANCE == tmp.dpoi_type)
{
/*
* post IPIP rewrite we will load-balance. However, the IPIP encap
* is always the same for this adjacency/tunnel and hence the IP/IPIP
* src,dst hash is always the same result too. So we do that hash now and
* stack on the choice.
* If the choice is an incomplete adj then we will need a poke when
* it becomes complete. This happens since the adj update walk propagates
* as far a recursive paths.
*/
const dpo_id_t *choice;
load_balance_t *lb;
int hash;
lb = load_balance_get (tmp.dpoi_index);
if (fib_fwd == FIB_FORW_CHAIN_TYPE_UNICAST_IP4)
hash = ip4_compute_flow_hash ((ip4_header_t *) adj_get_rewrite (ai),
lb->lb_hash_config);
else
hash = ip6_compute_flow_hash ((ip6_header_t *) adj_get_rewrite (ai),
lb->lb_hash_config);
choice =
load_balance_get_bucket_i (lb, hash & lb->lb_n_buckets_minus_1);
dpo_copy (&tmp, choice);
}
adj_nbr_midchain_stack (ai, &tmp);
dpo_reset (&tmp);
}
static adj_walk_rc_t
ipip_adj_walk_cb (adj_index_t ai, void *ctx)
{
ipip_tunnel_stack (ai);
return (ADJ_WALK_RC_CONTINUE);
}
static void
ipip_tunnel_restack (ipip_tunnel_t * gt)
{
fib_protocol_t proto;
/*
* walk all the adjacencies on th IPIP interface and restack them
*/
FOR_EACH_FIB_IP_PROTOCOL (proto)
{
adj_nbr_walk (gt->sw_if_index, proto, ipip_adj_walk_cb, NULL);
}
}
void
ipip_update_adj (vnet_main_t * vnm, u32 sw_if_index, adj_index_t ai)
{
ipip_tunnel_t *t;
adj_midchain_fixup_t f;
t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index);
if (!t)
return;
f = t->transport == IPIP_TRANSPORT_IP6 ? ipip6_fixup : ipip4_fixup;
adj_nbr_midchain_update_rewrite (ai, f, t,
(VNET_LINK_ETHERNET ==
adj_get_link_type (ai) ?
ADJ_FLAG_MIDCHAIN_NO_COUNT :
ADJ_FLAG_NONE), ipip_build_rewrite (vnm,
sw_if_index,
adj_get_link_type
(ai),
NULL));
ipip_tunnel_stack (ai);
}
static u8 *
format_ipip_tunnel_name (u8 * s, va_list * args)
{
u32 dev_instance = va_arg (*args, u32);
ipip_main_t *gm = &ipip_main;
ipip_tunnel_t *t;
if (dev_instance >= vec_len (gm->tunnels))
return format (s, "<improperly-referenced>");
t = pool_elt_at_index (gm->tunnels, dev_instance);
return format (s, "ipip%d", t->user_instance);
}
static u8 *
format_ipip_device (u8 * s, va_list * args)
{
u32 dev_instance = va_arg (*args, u32);
CLIB_UNUSED (int verbose) = va_arg (*args, int);
s = format (s, "IPIP tunnel: id %d\n", dev_instance);
return s;
}
static clib_error_t *
ipip_interface_admin_up_down (vnet_main_t * vnm, u32 hw_if_index, u32 flags)
{
vnet_hw_interface_t *hi;
ipip_tunnel_t *t;
hi = vnet_get_hw_interface (vnm, hw_if_index);
t = ipip_tunnel_db_find_by_sw_if_index (hi->sw_if_index);
if (!t)
return 0;
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 */ );
ipip_tunnel_restack (t);
return /* no error */ 0;
}
/* *INDENT-OFF* */
VNET_DEVICE_CLASS(ipip_device_class) = {
.name = "IPIP tunnel device",
.format_device_name = format_ipip_tunnel_name,
.format_device = format_ipip_device,
.format_tx_trace = format_ipip_tx_trace,
.admin_up_down_function = ipip_interface_admin_up_down,
#ifdef SOON
.clear counter = 0;
#endif
};
VNET_HW_INTERFACE_CLASS(ipip_hw_interface_class) = {
.name = "IPIP",
//.format_header = format_ipip_header_with_length,
//.unformat_header = unformat_ipip_header,
.build_rewrite = ipip_build_rewrite,
.update_adjacency = ipip_update_adj,
.flags = VNET_HW_INTERFACE_CLASS_FLAG_P2P,
};
/* *INDENT-ON* */
ipip_tunnel_t *
ipip_tunnel_db_find (ipip_tunnel_key_t * key)
{
ipip_main_t *gm = &ipip_main;
uword *p;
p = hash_get_mem (gm->tunnel_by_key, key);
if (!p)
return (NULL);
return (pool_elt_at_index (gm->tunnels, p[0]));
}
ipip_tunnel_t *
ipip_tunnel_db_find_by_sw_if_index (u32 sw_if_index)
{
ipip_main_t *gm = &ipip_main;
if (vec_len (gm->tunnel_index_by_sw_if_index) <= sw_if_index)
return NULL;
u32 ti = gm->tunnel_index_by_sw_if_index[sw_if_index];
if (ti == ~0)
return NULL;
return pool_elt_at_index (gm->tunnels, ti);
}
void
ipip_tunnel_db_add (ipip_tunnel_t * t, ipip_tunnel_key_t * key)
{
ipip_main_t *gm = &ipip_main;
t->key = clib_mem_alloc (sizeof (*t->key));
clib_memcpy (t->key, key, sizeof (*key));
hash_set_mem (gm->tunnel_by_key, t->key, t->dev_instance);
}
void
ipip_tunnel_db_remove (ipip_tunnel_t * t)
{
ipip_main_t *gm = &ipip_main;
hash_unset_mem (gm->tunnel_by_key, t->key);
clib_mem_free (t->key);
t->key = NULL;
}
static ipip_tunnel_t *
ipip_tunnel_from_fib_node (fib_node_t * node)
{
ipip_main_t *gm = &ipip_main;
ASSERT (gm->fib_node_type == node->fn_type);
return ((ipip_tunnel_t *) (((char *) node) -
offsetof (ipip_tunnel_t, p2p.node)));
}
static fib_node_back_walk_rc_t
ipip_tunnel_back_walk (fib_node_t * node, fib_node_back_walk_ctx_t * ctx)
{
ipip_tunnel_restack (ipip_tunnel_from_fib_node (node));
return (FIB_NODE_BACK_WALK_CONTINUE);
}
static fib_node_t *
ipip_tunnel_fib_node_get (fib_node_index_t index)
{
ipip_tunnel_t *gt;
ipip_main_t *gm;
gm = &ipip_main;
gt = pool_elt_at_index (gm->tunnels, index);
return (>->p2p.node);
}
static void
ipip_tunnel_last_lock_gone (fib_node_t * node)
{
/*
* The MPLS IPIP tunnel is a root of the graph. As such
* it never has children and thus is never locked.
*/
ASSERT (0);
}
/*
* Virtual function table registered by IPIP tunnels
* for participation in the FIB object graph.
*/
const static fib_node_vft_t ipip_vft = {
.fnv_get = ipip_tunnel_fib_node_get,
.fnv_last_lock = ipip_tunnel_last_lock_gone,
.fnv_back_walk = ipip_tunnel_back_walk,
};
static void
ipip_fib_add (ipip_tunnel_t * t)
{
ipip_main_t *gm = &ipip_main;
fib_prefix_t dst = {.fp_len = t->transport == IPIP_TRANSPORT_IP6 ? 128 : 32,
.fp_proto =
t->transport ==
IPIP_TRANSPORT_IP6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4,
.fp_addr = t->tunnel_dst
};
t->p2p.fib_entry_index =
fib_table_entry_special_add (t->fib_index, &dst, FIB_SOURCE_RR,
FIB_ENTRY_FLAG_NONE);
t->p2p.sibling_index =
fib_entry_child_add (t->p2p.fib_entry_index, gm->fib_node_type,
t->dev_instance);
}
static void
ipip_fib_delete (ipip_tunnel_t * t)
{
fib_entry_child_remove (t->p2p.fib_entry_index, t->p2p.sibling_index);
fib_table_entry_delete_index (t->p2p.fib_entry_index, FIB_SOURCE_RR);
fib_node_deinit (&t->p2p.node);
}
int
ipip_add_tunnel (ipip_transport_t transport,
u32 instance, ip46_address_t * src, ip46_address_t * dst,
u32 fib_index, u8 tc_tos, u32 * sw_if_indexp)
{
ipip_main_t *gm = &ipip_main;
vnet_main_t *vnm = gm->vnet_main;
ip4_main_t *im4 = &ip4_main;
ip6_main_t *im6 = &ip6_main;
ipip_tunnel_t *t;
vnet_hw_interface_t *hi;
u32 hw_if_index, sw_if_index;
ipip_tunnel_key_t key = {.transport = transport,
.fib_index = fib_index,
.src = *src,
.dst = *dst
};
t = ipip_tunnel_db_find (&key);
if (t)
return VNET_API_ERROR_IF_ALREADY_EXISTS;
pool_get_aligned (gm->tunnels, t, CLIB_CACHE_LINE_BYTES);
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 = 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 */
fib_node_init (&t->p2p.node, gm->fib_node_type);
hw_if_index = vnet_register_interface (vnm, ipip_device_class.index, t_idx,
ipip_hw_interface_class.index,
t_idx);
hi = vnet_get_hw_interface (vnm, hw_if_index);
sw_if_index = hi->sw_if_index;
t->hw_if_index = hw_if_index;
t->fib_index = fib_index;
t->sw_if_index = sw_if_index;
t->tc_tos = tc_tos;
t->transport = transport;
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 (t->transport == IPIP_TRANSPORT_IP4)
{
vec_validate (im4->fib_index_by_sw_if_index, sw_if_index);
hi->min_packet_bytes = 64 + sizeof (ip4_header_t);
}
else
{
vec_validate (im6->fib_index_by_sw_if_index, sw_if_index);
hi->min_packet_bytes = 64 + sizeof (ip6_header_t);
}
/* Standard default ipip MTU. */
vnet_sw_interface_set_mtu (vnm, sw_if_index, 9000);
t->tunnel_src = *src;
t->tunnel_dst = *dst;
ipip_tunnel_db_add (t, &key);
/*
* 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
*/
ipip_fib_add (t);
if (sw_if_indexp)
*sw_if_indexp = sw_if_index;
if (t->transport == IPIP_TRANSPORT_IP6 && !gm->ip6_protocol_registered)
{
ip6_register_protocol (IP_PROTOCOL_IP_IN_IP, ipip6_input_node.index);
ip6_register_protocol (IP_PROTOCOL_IPV6, ipip6_input_node.index);
gm->ip6_protocol_registered = true;
}
else if (t->transport == IPIP_TRANSPORT_IP4 && !gm->ip4_protocol_registered)
{
ip4_register_protocol (IP_PROTOCOL_IP_IN_IP, ipip4_input_node.index);
ip4_register_protocol (IP_PROTOCOL_IPV6, ipip4_input_node.index);
gm->ip4_protocol_registered = true;
}
return 0;
}
int
ipip_del_tunnel (u32 sw_if_index)
{
ipip_main_t *gm = &ipip_main;
vnet_main_t *vnm = gm->vnet_main;
ipip_tunnel_t *t;
t = ipip_tunnel_db_find_by_sw_if_index (sw_if_index);
if (t == NULL)
return VNET_API_ERROR_NO_SUCH_ENTRY;
vnet_sw_interface_set_flags (vnm, sw_if_index, 0 /* down */ );
gm->tunnel_index_by_sw_if_index[sw_if_index] = ~0;
vnet_delete_hw_interface (vnm, t->hw_if_index);
ipip_fib_delete (t);
hash_unset (gm->instance_used, t->user_instance);
ipip_tunnel_db_remove (t);
pool_put (gm->tunnels, t);
return 0;
}
static clib_error_t *
ipip_init (vlib_main_t * vm)
{
ipip_main_t *gm = &ipip_main;
memset (gm, 0, sizeof (gm[0]));
gm->vlib_main = vm;
gm->vnet_main = vnet_get_main ();
gm->tunnel_by_key =
hash_create_mem (0, sizeof (ipip_tunnel_key_t), sizeof (uword));
gm->fib_node_type = fib_node_register_new_type (&ipip_vft);
return 0;
}
VLIB_INIT_FUNCTION (ipip_init);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
