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/*
* Copyright 2020 Rubicon Communications, LLC.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <sys/socket.h>
#include <linux/if.h>
#include <vnet/vnet.h>
#include <vnet/plugin/plugin.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <vpp/app/version.h>
#include <vnet/format_fns.h>
#include <linux-cp/lcp_interface.h>
#include <linux-cp/lcp.api_enum.h>
#include <linux-cp/lcp.api_types.h>
static u16 lcp_msg_id_base;
#define REPLY_MSG_ID_BASE lcp_msg_id_base
#include <vlibapi/api_helper_macros.h>
static lip_host_type_t
api_decode_host_type (vl_api_lcp_itf_host_type_t type)
{
if (type == LCP_API_ITF_HOST_TUN)
return LCP_ITF_HOST_TUN;
return LCP_ITF_HOST_TAP;
}
static vl_api_lcp_itf_host_type_t
api_encode_host_type (lip_host_type_t type)
{
if (type == LCP_ITF_HOST_TUN)
return LCP_API_ITF_HOST_TUN;
return LCP_API_ITF_HOST_TAP;
}
static int
vl_api_lcp_itf_pair_add (u32 phy_sw_if_index, lip_host_type_t lip_host_type,
u8 *mp_host_if_name, size_t sizeof_host_if_name,
u8 *mp_namespace, size_t sizeof_mp_namespace,
u32 *host_sw_if_index_p)
{
u8 *host_if_name, *netns;
int host_len, netns_len, rv;
host_if_name = netns = 0;
/* lcp_itf_pair_create expects vec of u8 */
host_len = clib_strnlen ((char *) mp_host_if_name, sizeof_host_if_name - 1);
vec_add (host_if_name, mp_host_if_name, host_len);
vec_add1 (host_if_name, 0);
netns_len = clib_strnlen ((char *) mp_namespace, sizeof_mp_namespace - 1);
vec_add (netns, mp_namespace, netns_len);
vec_add1 (netns, 0);
rv = lcp_itf_pair_create (phy_sw_if_index, host_if_name, lip_host_type,
netns, host_sw_if_index_p);
vec_free (host_if_name);
vec_free (netns);
return rv;
}
static void
vl_api_lcp_itf_pair_add_del_t_handler (vl_api_lcp_itf_pair_add_del_t *mp)
{
u32 phy_sw_if_index;
vl_api_lcp_itf_pair_add_del_reply_t *rmp;
lip_host_type_t lip_host_type;
int rv;
VALIDATE_SW_IF_INDEX_END (mp);
phy_sw_if_index = mp->sw_if_index;
lip_host_type = api_decode_host_type (mp->host_if_type);
if (mp->is_add)
{
rv = vl_api_lcp_itf_pair_add (
phy_sw_if_index, lip_host_type, mp->host_if_name,
sizeof (mp->host_if_name), mp->netns, sizeof (mp->netns), NULL);
}
else
{
rv = lcp_itf_pair_delete (phy_sw_if_index);
}
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO_END (VL_API_LCP_ITF_PAIR_ADD_DEL_REPLY);
}
static void
vl_api_lcp_itf_pair_add_del_v2_t_handler (vl_api_lcp_itf_pair_add_del_v2_t *mp)
{
u32 phy_sw_if_index, host_sw_if_index = ~0;
vl_api_lcp_itf_pair_add_del_v2_reply_t *rmp;
lip_host_type_t lip_host_type;
int rv;
VALIDATE_SW_IF_INDEX_END (mp);
phy_sw_if_index = mp->sw_if_index;
lip_host_type = api_decode_host_type (mp->host_if_type);
if (mp->is_add)
{
rv = vl_api_lcp_itf_pair_add (phy_sw_if_index, lip_host_type,
mp->host_if_name,
sizeof (mp->host_if_name), mp->netns,
sizeof (mp->netns), &host_sw_if_index);
}
else
{
rv = lcp_itf_pair_delete (phy_sw_if_index);
}
BAD_SW_IF_INDEX_LABEL;
REPLY_MACRO2_END (VL_API_LCP_ITF_PAIR_ADD_DEL_V2_REPLY,
{ rmp->host_sw_if_index = host_sw_if_index; });
}
static void
send_lcp_itf_pair_details (index_t lipi, vl_api_registration_t *rp,
u32 context)
{
vl_api_lcp_itf_pair_details_t *rmp;
lcp_itf_pair_t *lcp_pair = lcp_itf_pair_get (lipi);
REPLY_MACRO_DETAILS4_END (
VL_API_LCP_ITF_PAIR_DETAILS, rp, context, ({
rmp->phy_sw_if_index = lcp_pair->lip_phy_sw_if_index;
rmp->host_sw_if_index = lcp_pair->lip_host_sw_if_index;
rmp->vif_index = lcp_pair->lip_vif_index;
rmp->host_if_type = api_encode_host_type (lcp_pair->lip_host_type);
memcpy_s (rmp->host_if_name, sizeof (rmp->host_if_name),
lcp_pair->lip_host_name, vec_len (lcp_pair->lip_host_name));
rmp->host_if_name[vec_len (lcp_pair->lip_host_name)] = 0;
memcpy_s (rmp->netns, sizeof (rmp->netns), lcp_pair->lip_namespace,
vec_len (lcp_pair->lip_namespace));
rmp->netns[vec_len (lcp_pair->lip_namespace)] = 0;
}));
}
static void
vl_api_lcp_itf_pair_get_t_handler (vl_api_lcp_itf_pair_get_t *mp)
{
vl_api_lcp_itf_pair_get_reply_t *rmp;
i32 rv = 0;
REPLY_AND_DETAILS_MACRO_END (
VL_API_LCP_ITF_PAIR_GET_REPLY, lcp_itf_pair_pool,
({ send_lcp_itf_pair_details (cursor, rp, mp->context); }));
}
static void
vl_api_lcp_default_ns_set_t_handler (vl_api_lcp_default_ns_set_t *mp)
{
vl_api_lcp_default_ns_set_reply_t *rmp;
int rv;
mp->netns[LCP_NS_LEN - 1] = 0;
rv = lcp_set_default_ns (mp->netns);
REPLY_MACRO (VL_API_LCP_DEFAULT_NS_SET_REPLY);
}
static void
vl_api_lcp_default_ns_get_t_handler (vl_api_lcp_default_ns_get_t *mp)
{
vl_api_lcp_default_ns_get_reply_t *rmp;
vl_api_registration_t *reg;
char *ns;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
REPLY_MACRO_DETAILS2_END (VL_API_LCP_DEFAULT_NS_GET_REPLY, ({
ns = (char *) lcp_get_default_ns ();
if (ns)
clib_strncpy ((char *) rmp->netns, ns,
LCP_NS_LEN - 1);
}));
}
static void
vl_api_lcp_itf_pair_replace_begin_t_handler (
vl_api_lcp_itf_pair_replace_begin_t *mp)
{
vl_api_lcp_itf_pair_replace_begin_reply_t *rmp;
int rv;
rv = lcp_itf_pair_replace_begin ();
REPLY_MACRO (VL_API_LCP_ITF_PAIR_REPLACE_BEGIN_REPLY);
}
static void
vl_api_lcp_itf_pair_replace_end_t_handler (
vl_api_lcp_itf_pair_replace_end_t *mp)
{
vl_api_lcp_itf_pair_replace_end_reply_t *rmp;
int rv = 0;
rv = lcp_itf_pair_replace_end ();
REPLY_MACRO (VL_API_LCP_ITF_PAIR_REPLACE_END_REPLY);
}
/*
* Set up the API message handling tables
*/
#include <linux-cp/lcp.api.c>
static clib_error_t *
lcp_api_init (vlib_main_t *vm)
{
/* Ask for a correctly-sized block of API message decode slots */
lcp_msg_id_base = setup_message_id_table ();
return (NULL);
}
VLIB_INIT_FUNCTION (lcp_api_init);
#include <vpp/app/version.h>
VLIB_PLUGIN_REGISTER () = {
.version = VPP_BUILD_VER,
.description = "Linux Control Plane - Interface Mirror",
.default_disabled = 1,
};
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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