blob: ab164a5f4673f1b656db7e88496b5cc6794c007c [file] [log] [blame]
/*
*------------------------------------------------------------------
* ip_api.c - vnet ip api
*
* 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 <vlibmemory/api.h>
#include <vnet/interface.h>
#include <vnet/api_errno.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/ip/ip.h>
#include <vnet/ip/ip6_neighbor.h>
#include <vnet/fib/fib_table.h>
#include <vnet/fib/fib_api.h>
#include <vnet/dpo/drop_dpo.h>
#include <vnet/dpo/receive_dpo.h>
#include <vnet/dpo/lookup_dpo.h>
#include <vnet/dpo/classify_dpo.h>
#include <vnet/dpo/ip_null_dpo.h>
#include <vnet/ethernet/arp_packet.h>
#include <vnet/mfib/ip6_mfib.h>
#include <vnet/mfib/ip4_mfib.h>
#include <vnet/mfib/mfib_signal.h>
#include <vnet/mfib/mfib_entry.h>
#include <vnet/vnet_msg_enum.h>
#define vl_typedefs /* define message structures */
#include <vnet/vnet_all_api_h.h>
#undef vl_typedefs
#define vl_endianfun /* define message structures */
#include <vnet/vnet_all_api_h.h>
#undef vl_endianfun
/* instantiate all the print functions we know about */
#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
#define vl_printfun
#include <vnet/vnet_all_api_h.h>
#undef vl_printfun
#include <vlibapi/api_helper_macros.h>
#define foreach_ip_api_msg \
_(IP_FIB_DUMP, ip_fib_dump) \
_(IP6_FIB_DUMP, ip6_fib_dump) \
_(IP_MFIB_DUMP, ip_mfib_dump) \
_(IP6_MFIB_DUMP, ip6_mfib_dump) \
_(IP_NEIGHBOR_DUMP, ip_neighbor_dump) \
_(IP_MROUTE_ADD_DEL, ip_mroute_add_del) \
_(MFIB_SIGNAL_DUMP, mfib_signal_dump) \
_(IP_ADDRESS_DUMP, ip_address_dump) \
_(IP_DUMP, ip_dump) \
_(IP_NEIGHBOR_ADD_DEL, ip_neighbor_add_del) \
_(IP_ADD_DEL_ROUTE, ip_add_del_route) \
_(SET_IP_FLOW_HASH,set_ip_flow_hash) \
_(SW_INTERFACE_IP6ND_RA_CONFIG, sw_interface_ip6nd_ra_config) \
_(SW_INTERFACE_IP6ND_RA_PREFIX, sw_interface_ip6nd_ra_prefix) \
_(SW_INTERFACE_IP6_ENABLE_DISABLE, sw_interface_ip6_enable_disable ) \
_(SW_INTERFACE_IP6_SET_LINK_LOCAL_ADDRESS, \
sw_interface_ip6_set_link_local_address)
extern void stats_dslock_with_hint (int hint, int tag);
extern void stats_dsunlock (void);
static void
send_ip_neighbor_details (u8 is_ipv6,
u8 is_static,
u8 * mac_address,
u8 * ip_address,
unix_shared_memory_queue_t * q, u32 context)
{
vl_api_ip_neighbor_details_t *mp;
mp = vl_msg_api_alloc (sizeof (*mp));
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_IP_NEIGHBOR_DETAILS);
mp->context = context;
mp->is_ipv6 = is_ipv6;
mp->is_static = is_static;
memcpy (mp->mac_address, mac_address, 6);
memcpy (mp->ip_address, ip_address, (is_ipv6) ? 16 : 4);
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
static void
vl_api_ip_neighbor_dump_t_handler (vl_api_ip_neighbor_dump_t * mp)
{
unix_shared_memory_queue_t *q;
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
return;
u32 sw_if_index = ntohl (mp->sw_if_index);
if (mp->is_ipv6)
{
ip6_neighbor_t *n, *ns;
ns = ip6_neighbors_entries (sw_if_index);
/* *INDENT-OFF* */
vec_foreach (n, ns)
{
send_ip_neighbor_details
(mp->is_ipv6, ((n->flags & IP6_NEIGHBOR_FLAG_STATIC) ? 1 : 0),
(u8 *) n->link_layer_address,
(u8 *) & (n->key.ip6_address.as_u8),
q, mp->context);
}
/* *INDENT-ON* */
vec_free (ns);
}
else
{
ethernet_arp_ip4_entry_t *n, *ns;
ns = ip4_neighbor_entries (sw_if_index);
/* *INDENT-OFF* */
vec_foreach (n, ns)
{
send_ip_neighbor_details (mp->is_ipv6,
((n->flags & ETHERNET_ARP_IP4_ENTRY_FLAG_STATIC) ? 1 : 0),
(u8*) n->ethernet_address,
(u8*) & (n->ip4_address.as_u8),
q, mp->context);
}
/* *INDENT-ON* */
vec_free (ns);
}
}
void
copy_fib_next_hop (fib_route_path_encode_t * api_rpath, void *fp_arg)
{
int is_ip4;
vl_api_fib_path_t *fp = (vl_api_fib_path_t *) fp_arg;
if (api_rpath->rpath.frp_proto == FIB_PROTOCOL_IP4)
fp->afi = IP46_TYPE_IP4;
else if (api_rpath->rpath.frp_proto == FIB_PROTOCOL_IP6)
fp->afi = IP46_TYPE_IP6;
else
{
is_ip4 = ip46_address_is_ip4 (&api_rpath->rpath.frp_addr);
if (is_ip4)
fp->afi = IP46_TYPE_IP4;
else
fp->afi = IP46_TYPE_IP6;
}
if (fp->afi == IP46_TYPE_IP4)
memcpy (fp->next_hop, &api_rpath->rpath.frp_addr.ip4,
sizeof (api_rpath->rpath.frp_addr.ip4));
else
memcpy (fp->next_hop, &api_rpath->rpath.frp_addr.ip6,
sizeof (api_rpath->rpath.frp_addr.ip6));
}
static void
send_ip_fib_details (vpe_api_main_t * am,
unix_shared_memory_queue_t * q,
u32 table_id, fib_prefix_t * pfx,
fib_route_path_encode_t * api_rpaths, u32 context)
{
vl_api_ip_fib_details_t *mp;
fib_route_path_encode_t *api_rpath;
vl_api_fib_path_t *fp;
int path_count;
path_count = vec_len (api_rpaths);
mp = vl_msg_api_alloc (sizeof (*mp) + path_count * sizeof (*fp));
if (!mp)
return;
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_IP_FIB_DETAILS);
mp->context = context;
mp->table_id = htonl (table_id);
mp->address_length = pfx->fp_len;
memcpy (mp->address, &pfx->fp_addr.ip4, sizeof (pfx->fp_addr.ip4));
mp->count = htonl (path_count);
fp = mp->path;
vec_foreach (api_rpath, api_rpaths)
{
memset (fp, 0, sizeof (*fp));
switch (api_rpath->dpo.dpoi_type)
{
case DPO_RECEIVE:
fp->is_local = true;
break;
case DPO_DROP:
fp->is_drop = true;
break;
case DPO_IP_NULL:
switch (api_rpath->dpo.dpoi_index)
{
case IP_NULL_ACTION_NONE:
fp->is_drop = true;
break;
case IP_NULL_ACTION_SEND_ICMP_UNREACH:
fp->is_unreach = true;
break;
case IP_NULL_ACTION_SEND_ICMP_PROHIBIT:
fp->is_prohibit = true;
break;
default:
break;
}
break;
default:
break;
}
fp->weight = htonl (api_rpath->rpath.frp_weight);
fp->sw_if_index = htonl (api_rpath->rpath.frp_sw_if_index);
copy_fib_next_hop (api_rpath, fp);
fp++;
}
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
static void
vl_api_ip_fib_dump_t_handler (vl_api_ip_fib_dump_t * mp)
{
vpe_api_main_t *am = &vpe_api_main;
unix_shared_memory_queue_t *q;
ip4_main_t *im = &ip4_main;
fib_table_t *fib_table;
fib_node_index_t lfei, *lfeip, *lfeis = NULL;
mpls_label_t key;
fib_prefix_t pfx;
u32 fib_index;
fib_route_path_encode_t *api_rpaths;
int i;
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
return;
/* *INDENT-OFF* */
pool_foreach (fib_table, im->fibs,
({
for (i = 0; i < ARRAY_LEN (fib_table->v4.fib_entry_by_dst_address); i++)
{
hash_foreach(key, lfei, fib_table->v4.fib_entry_by_dst_address[i],
({
vec_add1(lfeis, lfei);
}));
}
}));
/* *INDENT-ON* */
vec_sort_with_function (lfeis, fib_entry_cmp_for_sort);
vec_foreach (lfeip, lfeis)
{
fib_entry_get_prefix (*lfeip, &pfx);
fib_index = fib_entry_get_fib_index (*lfeip);
fib_table = fib_table_get (fib_index, pfx.fp_proto);
api_rpaths = NULL;
fib_entry_encode (*lfeip, &api_rpaths);
send_ip_fib_details (am, q,
fib_table->ft_table_id, &pfx, api_rpaths,
mp->context);
vec_free (api_rpaths);
}
vec_free (lfeis);
}
static void
send_ip6_fib_details (vpe_api_main_t * am,
unix_shared_memory_queue_t * q,
u32 table_id, fib_prefix_t * pfx,
fib_route_path_encode_t * api_rpaths, u32 context)
{
vl_api_ip6_fib_details_t *mp;
fib_route_path_encode_t *api_rpath;
vl_api_fib_path_t *fp;
int path_count;
path_count = vec_len (api_rpaths);
mp = vl_msg_api_alloc (sizeof (*mp) + path_count * sizeof (*fp));
if (!mp)
return;
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_IP6_FIB_DETAILS);
mp->context = context;
mp->table_id = htonl (table_id);
mp->address_length = pfx->fp_len;
memcpy (mp->address, &pfx->fp_addr.ip6, sizeof (pfx->fp_addr.ip6));
mp->count = htonl (path_count);
fp = mp->path;
vec_foreach (api_rpath, api_rpaths)
{
memset (fp, 0, sizeof (*fp));
switch (api_rpath->dpo.dpoi_type)
{
case DPO_RECEIVE:
fp->is_local = true;
break;
case DPO_DROP:
fp->is_drop = true;
break;
case DPO_IP_NULL:
switch (api_rpath->dpo.dpoi_index)
{
case IP_NULL_DPO_ACTION_NUM + IP_NULL_ACTION_NONE:
fp->is_drop = true;
break;
case IP_NULL_DPO_ACTION_NUM + IP_NULL_ACTION_SEND_ICMP_UNREACH:
fp->is_unreach = true;
break;
case IP_NULL_DPO_ACTION_NUM + IP_NULL_ACTION_SEND_ICMP_PROHIBIT:
fp->is_prohibit = true;
break;
default:
break;
}
break;
default:
break;
}
fp->weight = htonl (api_rpath->rpath.frp_weight);
fp->sw_if_index = htonl (api_rpath->rpath.frp_sw_if_index);
copy_fib_next_hop (api_rpath, fp);
fp++;
}
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
typedef struct apt_ip6_fib_show_ctx_t_
{
u32 fib_index;
fib_node_index_t *entries;
} api_ip6_fib_show_ctx_t;
static void
api_ip6_fib_table_put_entries (clib_bihash_kv_24_8_t * kvp, void *arg)
{
api_ip6_fib_show_ctx_t *ctx = arg;
if ((kvp->key[2] >> 32) == ctx->fib_index)
{
vec_add1 (ctx->entries, kvp->value);
}
}
static void
api_ip6_fib_table_get_all (unix_shared_memory_queue_t * q,
vl_api_ip6_fib_dump_t * mp,
fib_table_t * fib_table)
{
vpe_api_main_t *am = &vpe_api_main;
ip6_main_t *im6 = &ip6_main;
ip6_fib_t *fib = &fib_table->v6;
fib_node_index_t *fib_entry_index;
api_ip6_fib_show_ctx_t ctx = {
.fib_index = fib->index,.entries = NULL,
};
fib_route_path_encode_t *api_rpaths;
fib_prefix_t pfx;
BV (clib_bihash_foreach_key_value_pair)
((BVT (clib_bihash) *) & im6->ip6_table[IP6_FIB_TABLE_NON_FWDING].
ip6_hash, api_ip6_fib_table_put_entries, &ctx);
vec_sort_with_function (ctx.entries, fib_entry_cmp_for_sort);
vec_foreach (fib_entry_index, ctx.entries)
{
fib_entry_get_prefix (*fib_entry_index, &pfx);
api_rpaths = NULL;
fib_entry_encode (*fib_entry_index, &api_rpaths);
send_ip6_fib_details (am, q,
fib_table->ft_table_id,
&pfx, api_rpaths, mp->context);
vec_free (api_rpaths);
}
vec_free (ctx.entries);
}
static void
vl_api_ip6_fib_dump_t_handler (vl_api_ip6_fib_dump_t * mp)
{
unix_shared_memory_queue_t *q;
ip6_main_t *im6 = &ip6_main;
fib_table_t *fib_table;
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
return;
/* *INDENT-OFF* */
pool_foreach (fib_table, im6->fibs,
({
api_ip6_fib_table_get_all(q, mp, fib_table);
}));
/* *INDENT-ON* */
}
static void
send_ip_mfib_details (vpe_api_main_t * am,
unix_shared_memory_queue_t * q,
u32 table_id,
mfib_prefix_t * pfx,
fib_route_path_encode_t * api_rpaths, u32 context)
{
vl_api_ip_mfib_details_t *mp;
fib_route_path_encode_t *api_rpath;
vl_api_fib_path_t *fp;
int path_count;
path_count = vec_len (api_rpaths);
mp = vl_msg_api_alloc (sizeof (*mp) + path_count * sizeof (*fp));
if (!mp)
return;
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_IP_FIB_DETAILS);
mp->context = context;
mp->table_id = htonl (table_id);
mp->address_length = pfx->fp_len;
memcpy (mp->grp_address, &pfx->fp_grp_addr.ip4,
sizeof (pfx->fp_grp_addr.ip4));
memcpy (mp->src_address, &pfx->fp_src_addr.ip4,
sizeof (pfx->fp_src_addr.ip4));
mp->count = htonl (path_count);
fp = mp->path;
vec_foreach (api_rpath, api_rpaths)
{
memset (fp, 0, sizeof (*fp));
fp->weight = 0;
fp->sw_if_index = htonl (api_rpath->rpath.frp_sw_if_index);
copy_fib_next_hop (api_rpath, fp);
fp++;
}
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
typedef struct vl_api_ip_mfib_dump_ctc_t_
{
fib_node_index_t *entries;
} vl_api_ip_mfib_dump_ctc_t;
static int
vl_api_ip_mfib_table_dump_walk (fib_node_index_t fei, void *arg)
{
vl_api_ip_mfib_dump_ctc_t *ctx = arg;
vec_add1 (ctx->entries, fei);
return (0);
}
static void
vl_api_ip_mfib_dump_t_handler (vl_api_ip_mfib_dump_t * mp)
{
vpe_api_main_t *am = &vpe_api_main;
unix_shared_memory_queue_t *q;
ip4_main_t *im = &ip4_main;
mfib_table_t *mfib_table;
fib_node_index_t *mfeip;
mfib_prefix_t pfx;
fib_route_path_encode_t *api_rpaths = NULL;
vl_api_ip_mfib_dump_ctc_t ctx = {
.entries = NULL,
};
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
return;
/* *INDENT-OFF* */
pool_foreach (mfib_table, im->mfibs,
({
ip4_mfib_table_walk(&mfib_table->v4,
vl_api_ip_mfib_table_dump_walk,
&ctx);
vec_sort_with_function (ctx.entries, mfib_entry_cmp_for_sort);
vec_foreach (mfeip, ctx.entries)
{
mfib_entry_get_prefix (*mfeip, &pfx);
mfib_entry_encode (*mfeip, &api_rpaths);
send_ip_mfib_details (am, q,
mfib_table->mft_table_id,
&pfx, api_rpaths,
mp->context);
}
vec_reset_length (api_rpaths);
vec_reset_length (ctx.entries);
}));
/* *INDENT-ON* */
vec_free (ctx.entries);
vec_free (api_rpaths);
}
static void
send_ip6_mfib_details (vpe_api_main_t * am,
unix_shared_memory_queue_t * q,
u32 table_id,
mfib_prefix_t * pfx,
fib_route_path_encode_t * api_rpaths, u32 context)
{
vl_api_ip6_mfib_details_t *mp;
fib_route_path_encode_t *api_rpath;
vl_api_fib_path_t *fp;
int path_count;
path_count = vec_len (api_rpaths);
mp = vl_msg_api_alloc (sizeof (*mp) + path_count * sizeof (*fp));
if (!mp)
return;
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_IP6_FIB_DETAILS);
mp->context = context;
mp->table_id = htonl (table_id);
mp->address_length = pfx->fp_len;
memcpy (mp->grp_address, &pfx->fp_grp_addr.ip6,
sizeof (pfx->fp_grp_addr.ip6));
memcpy (mp->src_address, &pfx->fp_src_addr.ip6,
sizeof (pfx->fp_src_addr.ip6));
mp->count = htonl (path_count);
fp = mp->path;
vec_foreach (api_rpath, api_rpaths)
{
memset (fp, 0, sizeof (*fp));
fp->weight = 0;
fp->sw_if_index = htonl (api_rpath->rpath.frp_sw_if_index);
copy_fib_next_hop (api_rpath, fp);
fp++;
}
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
typedef struct vl_api_ip6_mfib_dump_ctc_t_
{
fib_node_index_t *entries;
} vl_api_ip6_mfib_dump_ctc_t;
static int
vl_api_ip6_mfib_table_dump_walk (fib_node_index_t fei, void *arg)
{
vl_api_ip6_mfib_dump_ctc_t *ctx = arg;
vec_add1 (ctx->entries, fei);
return (0);
}
static void
vl_api_ip6_mfib_dump_t_handler (vl_api_ip6_mfib_dump_t * mp)
{
vpe_api_main_t *am = &vpe_api_main;
unix_shared_memory_queue_t *q;
ip6_main_t *im = &ip6_main;
mfib_table_t *mfib_table;
fib_node_index_t *mfeip;
mfib_prefix_t pfx;
fib_route_path_encode_t *api_rpaths = NULL;
vl_api_ip6_mfib_dump_ctc_t ctx = {
.entries = NULL,
};
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
return;
/* *INDENT-OFF* */
pool_foreach (mfib_table, im->mfibs,
({
ip6_mfib_table_walk(&mfib_table->v6,
vl_api_ip6_mfib_table_dump_walk,
&ctx);
vec_sort_with_function (ctx.entries, mfib_entry_cmp_for_sort);
vec_foreach(mfeip, ctx.entries)
{
mfib_entry_get_prefix (*mfeip, &pfx);
mfib_entry_encode (*mfeip, &api_rpaths);
send_ip6_mfib_details (am, q,
mfib_table->mft_table_id,
&pfx, api_rpaths,
mp->context);
}
vec_reset_length (api_rpaths);
vec_reset_length (ctx.entries);
}));
/* *INDENT-ON* */
vec_free (ctx.entries);
vec_free (api_rpaths);
}
static void
vl_api_ip_neighbor_add_del_t_handler (vl_api_ip_neighbor_add_del_t * mp,
vlib_main_t * vm)
{
vl_api_ip_neighbor_add_del_reply_t *rmp;
vnet_main_t *vnm = vnet_get_main ();
int rv = 0;
VALIDATE_SW_IF_INDEX (mp);
stats_dslock_with_hint (1 /* release hint */ , 7 /* tag */ );
/*
* there's no validation here of the ND/ARP entry being added.
* The expectation is that the FIB will ensure that nothing bad
* will come of adding bogus entries.
*/
if (mp->is_ipv6)
{
if (mp->is_add)
rv = vnet_set_ip6_ethernet_neighbor
(vm, ntohl (mp->sw_if_index),
(ip6_address_t *) (mp->dst_address),
mp->mac_address, sizeof (mp->mac_address), mp->is_static);
else
rv = vnet_unset_ip6_ethernet_neighbor
(vm, ntohl (mp->sw_if_index),
(ip6_address_t *) (mp->dst_address),
mp->mac_address, sizeof (mp->mac_address));
}
else
{
ethernet_arp_ip4_over_ethernet_address_t a;
clib_memcpy (&a.ethernet, mp->mac_address, 6);
clib_memcpy (&a.ip4, mp->dst_address, 4);
if (mp->is_add)
rv = vnet_arp_set_ip4_over_ethernet (vnm, ntohl (mp->sw_if_index),
&a, mp->is_static);
else
rv =
vnet_arp_unset_ip4_over_ethernet (vnm, ntohl (mp->sw_if_index), &a);
}
BAD_SW_IF_INDEX_LABEL;
stats_dsunlock ();
REPLY_MACRO (VL_API_IP_NEIGHBOR_ADD_DEL_REPLY);
}
int
add_del_route_t_handler (u8 is_multipath,
u8 is_add,
u8 is_drop,
u8 is_unreach,
u8 is_prohibit,
u8 is_local,
u8 is_classify,
u32 classify_table_index,
u8 is_resolve_host,
u8 is_resolve_attached,
u32 fib_index,
const fib_prefix_t * prefix,
u8 next_hop_proto_is_ip4,
const ip46_address_t * next_hop,
u32 next_hop_sw_if_index,
u8 next_hop_fib_index,
u32 next_hop_weight,
mpls_label_t next_hop_via_label,
mpls_label_t * next_hop_out_label_stack)
{
vnet_classify_main_t *cm = &vnet_classify_main;
fib_route_path_flags_t path_flags = FIB_ROUTE_PATH_FLAG_NONE;
fib_route_path_t path = {
.frp_proto = (next_hop_proto_is_ip4 ?
FIB_PROTOCOL_IP4 : FIB_PROTOCOL_IP6),
.frp_addr = (NULL == next_hop ? zero_addr : *next_hop),
.frp_sw_if_index = next_hop_sw_if_index,
.frp_fib_index = next_hop_fib_index,
.frp_weight = next_hop_weight,
.frp_label_stack = next_hop_out_label_stack,
};
fib_route_path_t *paths = NULL;
if (MPLS_LABEL_INVALID != next_hop_via_label)
{
path.frp_proto = FIB_PROTOCOL_MPLS;
path.frp_local_label = next_hop_via_label;
}
if (is_resolve_host)
path_flags |= FIB_ROUTE_PATH_RESOLVE_VIA_HOST;
if (is_resolve_attached)
path_flags |= FIB_ROUTE_PATH_RESOLVE_VIA_ATTACHED;
path.frp_flags = path_flags;
if (is_multipath)
{
stats_dslock_with_hint (1 /* release hint */ , 10 /* tag */ );
vec_add1 (paths, path);
if (is_add)
fib_table_entry_path_add2 (fib_index,
prefix,
FIB_SOURCE_API,
FIB_ENTRY_FLAG_NONE, paths);
else
fib_table_entry_path_remove2 (fib_index,
prefix, FIB_SOURCE_API, paths);
vec_free (paths);
stats_dsunlock ();
return 0;
}
stats_dslock_with_hint (1 /* release hint */ , 2 /* tag */ );
if (is_drop || is_local || is_classify || is_unreach || is_prohibit)
{
/*
* special route types that link directly to the adj
*/
if (is_add)
{
dpo_id_t dpo = DPO_INVALID;
dpo_proto_t dproto;
dproto = fib_proto_to_dpo (prefix->fp_proto);
if (is_drop)
ip_null_dpo_add_and_lock (dproto, IP_NULL_ACTION_NONE, &dpo);
else if (is_local)
receive_dpo_add_or_lock (dproto, ~0, NULL, &dpo);
else if (is_unreach)
ip_null_dpo_add_and_lock (dproto,
IP_NULL_ACTION_SEND_ICMP_UNREACH, &dpo);
else if (is_prohibit)
ip_null_dpo_add_and_lock (dproto,
IP_NULL_ACTION_SEND_ICMP_PROHIBIT,
&dpo);
else if (is_classify)
{
if (pool_is_free_index (cm->tables,
ntohl (classify_table_index)))
{
stats_dsunlock ();
return VNET_API_ERROR_NO_SUCH_TABLE;
}
dpo_set (&dpo, DPO_CLASSIFY, dproto,
classify_dpo_create (dproto,
ntohl (classify_table_index)));
}
else
{
stats_dsunlock ();
return VNET_API_ERROR_NO_SUCH_TABLE;
}
fib_table_entry_special_dpo_update (fib_index,
prefix,
FIB_SOURCE_API,
FIB_ENTRY_FLAG_EXCLUSIVE, &dpo);
dpo_reset (&dpo);
}
else
{
fib_table_entry_special_remove (fib_index, prefix, FIB_SOURCE_API);
}
}
else
{
if (is_add)
{
vec_add1 (paths, path);
fib_table_entry_update (fib_index,
prefix,
FIB_SOURCE_API, FIB_ENTRY_FLAG_NONE, paths);
vec_free (paths);
}
else
{
fib_table_entry_delete (fib_index, prefix, FIB_SOURCE_API);
}
}
stats_dsunlock ();
return (0);
}
int
add_del_route_check (fib_protocol_t table_proto,
u32 table_id,
u32 next_hop_sw_if_index,
fib_protocol_t next_hop_table_proto,
u32 next_hop_table_id,
u8 create_missing_tables,
u32 * fib_index, u32 * next_hop_fib_index)
{
vnet_main_t *vnm = vnet_get_main ();
*fib_index = fib_table_find (table_proto, ntohl (table_id));
if (~0 == *fib_index)
{
if (create_missing_tables)
{
*fib_index = fib_table_find_or_create_and_lock (table_proto,
ntohl (table_id));
}
else
{
/* No such VRF, and we weren't asked to create one */
return VNET_API_ERROR_NO_SUCH_FIB;
}
}
if (~0 != ntohl (next_hop_sw_if_index))
{
if (pool_is_free_index (vnm->interface_main.sw_interfaces,
ntohl (next_hop_sw_if_index)))
{
return VNET_API_ERROR_NO_MATCHING_INTERFACE;
}
}
else
{
*next_hop_fib_index = fib_table_find (next_hop_table_proto,
ntohl (next_hop_table_id));
if (~0 == *next_hop_fib_index)
{
if (create_missing_tables)
{
*next_hop_fib_index =
fib_table_find_or_create_and_lock (next_hop_table_proto,
ntohl (next_hop_table_id));
}
else
{
/* No such VRF, and we weren't asked to create one */
return VNET_API_ERROR_NO_SUCH_FIB;
}
}
}
return (0);
}
static int
ip4_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
{
u32 fib_index, next_hop_fib_index;
mpls_label_t *label_stack = NULL;
int rv, ii, n_labels;;
rv = add_del_route_check (FIB_PROTOCOL_IP4,
mp->table_id,
mp->next_hop_sw_if_index,
FIB_PROTOCOL_IP4,
mp->next_hop_table_id,
mp->create_vrf_if_needed,
&fib_index, &next_hop_fib_index);
if (0 != rv)
return (rv);
fib_prefix_t pfx = {
.fp_len = mp->dst_address_length,
.fp_proto = FIB_PROTOCOL_IP4,
};
clib_memcpy (&pfx.fp_addr.ip4, mp->dst_address, sizeof (pfx.fp_addr.ip4));
ip46_address_t nh;
memset (&nh, 0, sizeof (nh));
memcpy (&nh.ip4, mp->next_hop_address, sizeof (nh.ip4));
n_labels = mp->next_hop_n_out_labels;
if (n_labels == 0)
;
else if (1 == n_labels)
vec_add1 (label_stack, ntohl (mp->next_hop_out_label_stack[0]));
else
{
vec_validate (label_stack, n_labels - 1);
for (ii = 0; ii < n_labels; ii++)
label_stack[ii] = ntohl (mp->next_hop_out_label_stack[ii]);
}
return (add_del_route_t_handler (mp->is_multipath,
mp->is_add,
mp->is_drop,
mp->is_unreach,
mp->is_prohibit,
mp->is_local,
mp->is_classify,
mp->classify_table_index,
mp->is_resolve_host,
mp->is_resolve_attached,
fib_index, &pfx, 1,
&nh,
ntohl (mp->next_hop_sw_if_index),
next_hop_fib_index,
mp->next_hop_weight,
ntohl (mp->next_hop_via_label),
label_stack));
}
static int
ip6_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
{
u32 fib_index, next_hop_fib_index;
mpls_label_t *label_stack = NULL;
int rv, ii, n_labels;;
rv = add_del_route_check (FIB_PROTOCOL_IP6,
mp->table_id,
mp->next_hop_sw_if_index,
FIB_PROTOCOL_IP6,
mp->next_hop_table_id,
mp->create_vrf_if_needed,
&fib_index, &next_hop_fib_index);
if (0 != rv)
return (rv);
fib_prefix_t pfx = {
.fp_len = mp->dst_address_length,
.fp_proto = FIB_PROTOCOL_IP6,
};
clib_memcpy (&pfx.fp_addr.ip6, mp->dst_address, sizeof (pfx.fp_addr.ip6));
ip46_address_t nh;
memset (&nh, 0, sizeof (nh));
memcpy (&nh.ip6, mp->next_hop_address, sizeof (nh.ip6));
n_labels = mp->next_hop_n_out_labels;
if (n_labels == 0)
;
else if (1 == n_labels)
vec_add1 (label_stack, ntohl (mp->next_hop_out_label_stack[0]));
else
{
vec_validate (label_stack, n_labels - 1);
for (ii = 0; ii < n_labels; ii++)
label_stack[ii] = ntohl (mp->next_hop_out_label_stack[ii]);
}
return (add_del_route_t_handler (mp->is_multipath,
mp->is_add,
mp->is_drop,
mp->is_unreach,
mp->is_prohibit,
mp->is_local,
mp->is_classify,
mp->classify_table_index,
mp->is_resolve_host,
mp->is_resolve_attached,
fib_index, &pfx, 0,
&nh, ntohl (mp->next_hop_sw_if_index),
next_hop_fib_index,
mp->next_hop_weight,
ntohl (mp->next_hop_via_label),
label_stack));
}
void
vl_api_ip_add_del_route_t_handler (vl_api_ip_add_del_route_t * mp)
{
vl_api_ip_add_del_route_reply_t *rmp;
int rv;
vnet_main_t *vnm = vnet_get_main ();
vnm->api_errno = 0;
if (mp->is_ipv6)
rv = ip6_add_del_route_t_handler (mp);
else
rv = ip4_add_del_route_t_handler (mp);
rv = (rv == 0) ? vnm->api_errno : rv;
REPLY_MACRO (VL_API_IP_ADD_DEL_ROUTE_REPLY);
}
static int
add_del_mroute_check (fib_protocol_t table_proto,
u32 table_id,
u32 next_hop_sw_if_index,
u8 is_local, u8 create_missing_tables, u32 * fib_index)
{
vnet_main_t *vnm = vnet_get_main ();
*fib_index = mfib_table_find (table_proto, ntohl (table_id));
if (~0 == *fib_index)
{
if (create_missing_tables)
{
*fib_index = mfib_table_find_or_create_and_lock (table_proto,
ntohl (table_id));
}
else
{
/* No such VRF, and we weren't asked to create one */
return VNET_API_ERROR_NO_SUCH_FIB;
}
}
if (~0 != ntohl (next_hop_sw_if_index))
{
if (pool_is_free_index (vnm->interface_main.sw_interfaces,
ntohl (next_hop_sw_if_index)))
{
return VNET_API_ERROR_NO_MATCHING_INTERFACE;
}
}
return (0);
}
static int
mroute_add_del_handler (u8 is_add,
u8 is_local,
u32 fib_index,
const mfib_prefix_t * prefix,
u32 entry_flags,
u32 next_hop_sw_if_index, u32 itf_flags)
{
stats_dslock_with_hint (1 /* release hint */ , 2 /* tag */ );
fib_route_path_t path = {
.frp_sw_if_index = next_hop_sw_if_index,
.frp_proto = prefix->fp_proto,
};
if (is_local)
path.frp_flags |= FIB_ROUTE_PATH_LOCAL;
if (!is_local && ~0 == next_hop_sw_if_index)
{
mfib_table_entry_update (fib_index, prefix,
MFIB_SOURCE_API, entry_flags);
}
else
{
if (is_add)
{
mfib_table_entry_path_update (fib_index, prefix,
MFIB_SOURCE_API, &path, itf_flags);
}
else
{
mfib_table_entry_path_remove (fib_index, prefix,
MFIB_SOURCE_API, &path);
}
}
stats_dsunlock ();
return (0);
}
static int
api_mroute_add_del_t_handler (vl_api_ip_mroute_add_del_t * mp)
{
fib_protocol_t fproto;
u32 fib_index;
int rv;
fproto = (mp->is_ipv6 ? FIB_PROTOCOL_IP6 : FIB_PROTOCOL_IP4);
rv = add_del_mroute_check (fproto,
mp->table_id,
mp->next_hop_sw_if_index,
mp->is_local,
mp->create_vrf_if_needed, &fib_index);
if (0 != rv)
return (rv);
mfib_prefix_t pfx = {
.fp_len = ntohs (mp->grp_address_length),
.fp_proto = fproto,
};
if (FIB_PROTOCOL_IP4 == fproto)
{
clib_memcpy (&pfx.fp_grp_addr.ip4, mp->grp_address,
sizeof (pfx.fp_grp_addr.ip4));
clib_memcpy (&pfx.fp_src_addr.ip4, mp->src_address,
sizeof (pfx.fp_src_addr.ip4));
}
else
{
clib_memcpy (&pfx.fp_grp_addr.ip6, mp->grp_address,
sizeof (pfx.fp_grp_addr.ip6));
clib_memcpy (&pfx.fp_src_addr.ip6, mp->src_address,
sizeof (pfx.fp_src_addr.ip6));
}
return (mroute_add_del_handler (mp->is_add,
mp->is_local,
fib_index, &pfx,
ntohl (mp->entry_flags),
ntohl (mp->next_hop_sw_if_index),
ntohl (mp->itf_flags)));
}
void
vl_api_ip_mroute_add_del_t_handler (vl_api_ip_mroute_add_del_t * mp)
{
vl_api_ip_mroute_add_del_reply_t *rmp;
int rv;
vnet_main_t *vnm = vnet_get_main ();
vnm->api_errno = 0;
rv = api_mroute_add_del_t_handler (mp);
rv = (rv == 0) ? vnm->api_errno : rv;
REPLY_MACRO (VL_API_IP_MROUTE_ADD_DEL_REPLY);
}
static void
send_ip_details (vpe_api_main_t * am,
unix_shared_memory_queue_t * q, u32 sw_if_index,
u8 is_ipv6, u32 context)
{
vl_api_ip_details_t *mp;
mp = vl_msg_api_alloc (sizeof (*mp));
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_IP_DETAILS);
mp->sw_if_index = ntohl (sw_if_index);
mp->is_ipv6 = is_ipv6;
mp->context = context;
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
static void
send_ip_address_details (vpe_api_main_t * am,
unix_shared_memory_queue_t * q,
u8 * ip, u16 prefix_length,
u32 sw_if_index, u8 is_ipv6, u32 context)
{
vl_api_ip_address_details_t *mp;
mp = vl_msg_api_alloc (sizeof (*mp));
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_IP_ADDRESS_DETAILS);
if (is_ipv6)
{
clib_memcpy (&mp->ip, ip, sizeof (mp->ip));
}
else
{
u32 *tp = (u32 *) mp->ip;
*tp = *(u32 *) ip;
}
mp->prefix_length = prefix_length;
mp->context = context;
mp->sw_if_index = htonl (sw_if_index);
mp->is_ipv6 = is_ipv6;
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
static void
vl_api_ip_address_dump_t_handler (vl_api_ip_address_dump_t * mp)
{
vpe_api_main_t *am = &vpe_api_main;
unix_shared_memory_queue_t *q;
ip6_address_t *r6;
ip4_address_t *r4;
ip6_main_t *im6 = &ip6_main;
ip4_main_t *im4 = &ip4_main;
ip_lookup_main_t *lm6 = &im6->lookup_main;
ip_lookup_main_t *lm4 = &im4->lookup_main;
ip_interface_address_t *ia = 0;
u32 sw_if_index = ~0;
int rv __attribute__ ((unused)) = 0;
VALIDATE_SW_IF_INDEX (mp);
sw_if_index = ntohl (mp->sw_if_index);
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
return;
if (mp->is_ipv6)
{
/* *INDENT-OFF* */
foreach_ip_interface_address (lm6, ia, sw_if_index,
1 /* honor unnumbered */,
({
r6 = ip_interface_address_get_address (lm6, ia);
u16 prefix_length = ia->address_length;
send_ip_address_details(am, q, (u8*)r6, prefix_length,
sw_if_index, 1, mp->context);
}));
/* *INDENT-ON* */
}
else
{
/* *INDENT-OFF* */
foreach_ip_interface_address (lm4, ia, sw_if_index,
1 /* honor unnumbered */,
({
r4 = ip_interface_address_get_address (lm4, ia);
u16 prefix_length = ia->address_length;
send_ip_address_details(am, q, (u8*)r4, prefix_length,
sw_if_index, 0, mp->context);
}));
/* *INDENT-ON* */
}
BAD_SW_IF_INDEX_LABEL;
}
static void
vl_api_ip_dump_t_handler (vl_api_ip_dump_t * mp)
{
vpe_api_main_t *am = &vpe_api_main;
vnet_main_t *vnm = vnet_get_main ();
vlib_main_t *vm = vlib_get_main ();
vnet_interface_main_t *im = &vnm->interface_main;
unix_shared_memory_queue_t *q;
vnet_sw_interface_t *si, *sorted_sis;
u32 sw_if_index = ~0;
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
{
return;
}
/* Gather interfaces. */
sorted_sis = vec_new (vnet_sw_interface_t, pool_elts (im->sw_interfaces));
_vec_len (sorted_sis) = 0;
/* *INDENT-OFF* */
pool_foreach (si, im->sw_interfaces,
({
vec_add1 (sorted_sis, si[0]);
}));
/* *INDENT-ON* */
vec_foreach (si, sorted_sis)
{
if (!(si->flags & VNET_SW_INTERFACE_FLAG_UNNUMBERED))
{
if (mp->is_ipv6 && !ip6_interface_enabled (vm, si->sw_if_index))
{
continue;
}
sw_if_index = si->sw_if_index;
send_ip_details (am, q, sw_if_index, mp->is_ipv6, mp->context);
}
}
}
static void
set_ip6_flow_hash (vl_api_set_ip_flow_hash_t * mp)
{
vl_api_set_ip_flow_hash_reply_t *rmp;
int rv = VNET_API_ERROR_UNIMPLEMENTED;
clib_warning ("unimplemented...");
REPLY_MACRO (VL_API_SET_IP_FLOW_HASH_REPLY);
}
static void
set_ip4_flow_hash (vl_api_set_ip_flow_hash_t * mp)
{
vl_api_set_ip_flow_hash_reply_t *rmp;
int rv;
u32 table_id;
flow_hash_config_t flow_hash_config = 0;
table_id = ntohl (mp->vrf_id);
#define _(a,b) if (mp->a) flow_hash_config |= b;
foreach_flow_hash_bit;
#undef _
rv = vnet_set_ip4_flow_hash (table_id, flow_hash_config);
REPLY_MACRO (VL_API_SET_IP_FLOW_HASH_REPLY);
}
static void
vl_api_set_ip_flow_hash_t_handler (vl_api_set_ip_flow_hash_t * mp)
{
if (mp->is_ipv6 == 0)
set_ip4_flow_hash (mp);
else
set_ip6_flow_hash (mp);
}
static void
vl_api_sw_interface_ip6nd_ra_config_t_handler
(vl_api_sw_interface_ip6nd_ra_config_t * mp)
{
vl_api_sw_interface_ip6nd_ra_config_reply_t *rmp;
vlib_main_t *vm = vlib_get_main ();
int rv = 0;
u8 is_no, suppress, managed, other, ll_option, send_unicast, cease,
default_router;
is_no = mp->is_no == 1;
suppress = mp->suppress == 1;
managed = mp->managed == 1;
other = mp->other == 1;
ll_option = mp->ll_option == 1;
send_unicast = mp->send_unicast == 1;
cease = mp->cease == 1;
default_router = mp->default_router == 1;
VALIDATE_SW_IF_INDEX (mp);
rv = ip6_neighbor_ra_config (vm, ntohl (mp->sw_if_index),
suppress, managed, other,
ll_option, send_unicast, cease,
default_router, ntohl (mp->lifetime),
ntohl (mp->initial_count),
ntohl (mp->initial_interval),
ntohl (mp->max_interval),
ntohl (mp->min_interval), is_no);
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_SW_INTERFACE_IP6ND_RA_CONFIG_REPLY);
}
static void
vl_api_sw_interface_ip6nd_ra_prefix_t_handler
(vl_api_sw_interface_ip6nd_ra_prefix_t * mp)
{
vlib_main_t *vm = vlib_get_main ();
vl_api_sw_interface_ip6nd_ra_prefix_reply_t *rmp;
int rv = 0;
u8 is_no, use_default, no_advertise, off_link, no_autoconfig, no_onlink;
VALIDATE_SW_IF_INDEX (mp);
is_no = mp->is_no == 1;
use_default = mp->use_default == 1;
no_advertise = mp->no_advertise == 1;
off_link = mp->off_link == 1;
no_autoconfig = mp->no_autoconfig == 1;
no_onlink = mp->no_onlink == 1;
rv = ip6_neighbor_ra_prefix (vm, ntohl (mp->sw_if_index),
(ip6_address_t *) mp->address,
mp->address_length, use_default,
ntohl (mp->val_lifetime),
ntohl (mp->pref_lifetime), no_advertise,
off_link, no_autoconfig, no_onlink, is_no);
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_SW_INTERFACE_IP6ND_RA_PREFIX_REPLY);
}
static void
vl_api_sw_interface_ip6_enable_disable_t_handler
(vl_api_sw_interface_ip6_enable_disable_t * mp)
{
vlib_main_t *vm = vlib_get_main ();
vl_api_sw_interface_ip6_enable_disable_reply_t *rmp;
vnet_main_t *vnm = vnet_get_main ();
int rv = 0;
clib_error_t *error;
vnm->api_errno = 0;
VALIDATE_SW_IF_INDEX (mp);
error =
(mp->enable == 1) ? enable_ip6_interface (vm,
ntohl (mp->sw_if_index)) :
disable_ip6_interface (vm, ntohl (mp->sw_if_index));
if (error)
{
clib_error_report (error);
rv = VNET_API_ERROR_UNSPECIFIED;
}
else
{
rv = vnm->api_errno;
}
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_SW_INTERFACE_IP6_ENABLE_DISABLE_REPLY);
}
static void
vl_api_sw_interface_ip6_set_link_local_address_t_handler
(vl_api_sw_interface_ip6_set_link_local_address_t * mp)
{
vlib_main_t *vm = vlib_get_main ();
vl_api_sw_interface_ip6_set_link_local_address_reply_t *rmp;
int rv = 0;
clib_error_t *error;
vnet_main_t *vnm = vnet_get_main ();
vnm->api_errno = 0;
VALIDATE_SW_IF_INDEX (mp);
error = set_ip6_link_local_address (vm,
ntohl (mp->sw_if_index),
(ip6_address_t *) mp->address);
if (error)
{
clib_error_report (error);
rv = VNET_API_ERROR_UNSPECIFIED;
}
else
{
rv = vnm->api_errno;
}
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO (VL_API_SW_INTERFACE_IP6_SET_LINK_LOCAL_ADDRESS_REPLY);
}
void
vl_mfib_signal_send_one (unix_shared_memory_queue_t * q,
u32 context, const mfib_signal_t * mfs)
{
vl_api_mfib_signal_details_t *mp;
mfib_prefix_t prefix;
mfib_table_t *mfib;
mfib_itf_t *mfi;
mp = vl_msg_api_alloc (sizeof (*mp));
memset (mp, 0, sizeof (*mp));
mp->_vl_msg_id = ntohs (VL_API_MFIB_SIGNAL_DETAILS);
mp->context = context;
mfi = mfib_itf_get (mfs->mfs_itf);
mfib_entry_get_prefix (mfs->mfs_entry, &prefix);
mfib = mfib_table_get (mfib_entry_get_fib_index (mfs->mfs_entry),
prefix.fp_proto);
mp->table_id = ntohl (mfib->mft_table_id);
mp->sw_if_index = ntohl (mfi->mfi_sw_if_index);
if (FIB_PROTOCOL_IP4 == prefix.fp_proto)
{
mp->grp_address_len = ntohs (prefix.fp_len);
memcpy (mp->grp_address, &prefix.fp_grp_addr.ip4, 4);
if (prefix.fp_len > 32)
{
memcpy (mp->src_address, &prefix.fp_src_addr.ip4, 4);
}
}
else
{
mp->grp_address_len = ntohs (prefix.fp_len);
ASSERT (0);
}
if (0 != mfs->mfs_buffer_len)
{
mp->ip_packet_len = ntohs (mfs->mfs_buffer_len);
memcpy (mp->ip_packet_data, mfs->mfs_buffer, mfs->mfs_buffer_len);
}
else
{
mp->ip_packet_len = 0;
}
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
static void
vl_api_mfib_signal_dump_t_handler (vl_api_mfib_signal_dump_t * mp)
{
unix_shared_memory_queue_t *q;
q = vl_api_client_index_to_input_queue (mp->client_index);
if (q == 0)
{
return;
}
while (q->cursize < q->maxsize && mfib_signal_send_one (q, mp->context))
;
}
#define vl_msg_name_crc_list
#include <vnet/ip/ip.api.h>
#undef vl_msg_name_crc_list
static void
setup_message_id_table (api_main_t * am)
{
#define _(id,n,crc) vl_msg_api_add_msg_name_crc (am, #n "_" #crc, id);
foreach_vl_msg_name_crc_ip;
#undef _
}
static clib_error_t *
ip_api_hookup (vlib_main_t * vm)
{
api_main_t *am = &api_main;
#define _(N,n) \
vl_msg_api_set_handlers(VL_API_##N, #n, \
vl_api_##n##_t_handler, \
vl_noop_handler, \
vl_api_##n##_t_endian, \
vl_api_##n##_t_print, \
sizeof(vl_api_##n##_t), 1);
foreach_ip_api_msg;
#undef _
/*
* Set up the (msg_name, crc, message-id) table
*/
setup_message_id_table (am);
return 0;
}
VLIB_API_INIT_FUNCTION (ip_api_hookup);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/