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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 <stdint.h>
#include <net/if.h>
#include <sys/ioctl.h>
#include <inttypes.h>
#include <vlib/vlib.h>
#include <vlib/unix/unix.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/ip/ip4_packet.h>
#include <vnet/ip/ip6_packet.h>
#include <vnet/ip/format.h>
#include <linux/virtio_net.h>
#include <linux/vhost.h>
#include <vnet/devices/virtio/virtio.h>
#include <vnet/devices/tap/tap.h>
static clib_error_t *
tap_create_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
tap_create_if_args_t args = { 0 };
int ip_addr_set = 0;
u32 tmp;
args.id = ~0;
args.tap_flags = 0;
args.rv = -1;
args.num_rx_queues = 1;
/* Get a line of input. */
if (unformat_user (input, unformat_line_input, line_input))
{
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "id %u", &args.id))
;
else
if (unformat (line_input, "host-if-name %s", &args.host_if_name))
;
else if (unformat (line_input, "host-ns %s", &args.host_namespace))
;
else if (unformat (line_input, "host-mac-addr %U",
unformat_ethernet_address,
args.host_mac_addr.bytes))
;
else if (unformat (line_input, "host-bridge %s", &args.host_bridge))
;
else if (unformat (line_input, "host-ip4-addr %U/%d",
unformat_ip4_address, &args.host_ip4_addr,
&args.host_ip4_prefix_len))
ip_addr_set = 1;
else if (unformat (line_input, "host-ip4-gw %U",
unformat_ip4_address, &args.host_ip4_gw))
args.host_ip4_gw_set = 1;
else if (unformat (line_input, "host-ip6-addr %U/%d",
unformat_ip6_address, &args.host_ip6_addr,
&args.host_ip6_prefix_len))
ip_addr_set = 1;
else if (unformat (line_input, "host-ip6-gw %U",
unformat_ip6_address, &args.host_ip6_gw))
args.host_ip6_gw_set = 1;
else if (unformat (line_input, "num-rx-queues %d", &tmp))
args.num_rx_queues = tmp;
else if (unformat (line_input, "rx-ring-size %d", &tmp))
args.rx_ring_sz = tmp;
else if (unformat (line_input, "tx-ring-size %d", &tmp))
args.tx_ring_sz = tmp;
else
if (unformat
(line_input, "host-mtu-size %d", &args.host_mtu_size))
args.host_mtu_set = 1;
else if (unformat (line_input, "no-gso"))
args.tap_flags &= ~TAP_FLAG_GSO;
else if (unformat (line_input, "gso"))
args.tap_flags |= TAP_FLAG_GSO;
else if (unformat (line_input, "csum-offload"))
args.tap_flags |= TAP_FLAG_CSUM_OFFLOAD;
else if (unformat (line_input, "persist"))
args.tap_flags |= TAP_FLAG_PERSIST;
else if (unformat (line_input, "attach"))
args.tap_flags |= TAP_FLAG_ATTACH;
else if (unformat (line_input, "hw-addr %U",
unformat_ethernet_address, args.mac_addr.bytes))
args.mac_addr_set = 1;
else
{
unformat_free (line_input);
return clib_error_return (0, "unknown input `%U'",
format_unformat_error, input);
}
}
unformat_free (line_input);
}
if (ip_addr_set && args.host_bridge)
return clib_error_return (0, "Please specify either host ip address or "
"host bridge");
tap_create_if (vm, &args);
if (!args.rv)
vlib_cli_output (vm, "%U\n", format_vnet_sw_if_index_name,
vnet_get_main (), args.sw_if_index);
vec_free (args.host_if_name);
vec_free (args.host_namespace);
vec_free (args.host_bridge);
return args.error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (tap_create_command, static) = {
.path = "create tap",
.short_help = "create tap {id <if-id>} [hw-addr <mac-address>] "
"[rx-ring-size <size>] [tx-ring-size <size>] [host-ns <netns>] "
"[host-bridge <bridge-name>] [host-ip4-addr <ip4addr/mask>] "
"[host-ip6-addr <ip6-addr>] [host-ip4-gw <ip4-addr>] "
"[host-ip6-gw <ip6-addr>] [host-mac-addr <host-mac-address>] "
"[host-if-name <name>] [host-mtu-size <size>] [no-gso|gso|csum-offload] "
"[persist] [attach]",
.function = tap_create_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
tap_delete_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
u32 sw_if_index = ~0;
vnet_main_t *vnm = vnet_get_main ();
int rv;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return clib_error_return (0, "Missing <interface>");
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "sw_if_index %d", &sw_if_index))
;
else if (unformat (line_input, "%U", unformat_vnet_sw_interface,
vnm, &sw_if_index))
;
else
return clib_error_return (0, "unknown input `%U'",
format_unformat_error, input);
}
unformat_free (line_input);
if (sw_if_index == ~0)
return clib_error_return (0,
"please specify interface name or sw_if_index");
rv = tap_delete_if (vm, sw_if_index);
if (rv == VNET_API_ERROR_INVALID_SW_IF_INDEX)
return clib_error_return (0, "not a tap interface");
else if (rv != 0)
return clib_error_return (0, "error on deleting tap interface");
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (tap_delete__command, static) =
{
.path = "delete tap",
.short_help = "delete tap {<interface> | sw_if_index <sw_idx>}",
.function = tap_delete_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
tap_offload_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
u32 sw_if_index = ~0;
vnet_main_t *vnm = vnet_get_main ();
int gso_enable = 0, gso_disable = 0;
int csum_offload_enable = 0, csum_offload_disable = 0;
int rv = 0;
/* Get a line of input. */
if (!unformat_user (input, unformat_line_input, line_input))
return clib_error_return (0, "Missing <interface>");
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "sw_if_index %d", &sw_if_index))
;
else if (unformat (line_input, "%U", unformat_vnet_sw_interface,
vnm, &sw_if_index))
;
else if (unformat (line_input, "gso-enable"))
gso_enable = 1;
else if (unformat (line_input, "gso-disable"))
gso_disable = 1;
else if (unformat (line_input, "csum-offload-enable"))
csum_offload_enable = 1;
else if (unformat (line_input, "csum-offload-disable"))
csum_offload_disable = 1;
else
return clib_error_return (0, "unknown input `%U'",
format_unformat_error, input);
}
unformat_free (line_input);
if (sw_if_index == ~0)
return clib_error_return (0,
"please specify interface name or sw_if_index");
if (gso_enable)
rv = tap_gso_enable_disable (vm, sw_if_index, 1);
else if (csum_offload_enable)
rv = tap_csum_offload_enable_disable (vm, sw_if_index, 1);
else if (gso_disable)
rv = tap_gso_enable_disable (vm, sw_if_index, 0);
else if (csum_offload_disable)
rv = tap_csum_offload_enable_disable (vm, sw_if_index, 0);
if (rv == VNET_API_ERROR_INVALID_SW_IF_INDEX)
return clib_error_return (0, "not a tap interface");
else if (rv != 0)
return clib_error_return (0, "error on configuring GSO on tap interface");
return 0;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (tap_offload_command, static) =
{
.path = "set tap offload",
.short_help = "set tap offload {<interface> | sw_if_index <sw_idx>}"
" <gso-enable | gso-disable | csum-offload-enable | csum-offload-disable>",
.function = tap_offload_command_fn,
};
/* *INDENT-ON* */
static clib_error_t *
tap_show_command_fn (vlib_main_t * vm, unformat_input_t * input,
vlib_cli_command_t * cmd)
{
virtio_main_t *mm = &virtio_main;
virtio_if_t *vif;
vnet_main_t *vnm = vnet_get_main ();
int show_descr = 0;
clib_error_t *error = 0;
u32 hw_if_index, *hw_if_indices = 0;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat
(input, "%U", unformat_vnet_hw_interface, vnm, &hw_if_index))
vec_add1 (hw_if_indices, hw_if_index);
else if (unformat (input, "descriptors"))
show_descr = 1;
else
{
error = clib_error_return (0, "unknown input `%U'",
format_unformat_error, input);
goto done;
}
}
if (vec_len (hw_if_indices) == 0)
{
/* *INDENT-OFF* */
pool_foreach (vif, mm->interfaces,
vec_add1 (hw_if_indices, vif->hw_if_index);
);
/* *INDENT-ON* */
}
virtio_show (vm, hw_if_indices, show_descr, VIRTIO_IF_TYPE_TAP);
done:
vec_free (hw_if_indices);
return error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (tap_show_command, static) = {
.path = "show tap",
.short_help = "show tap {<interface>] [descriptors]",
.function = tap_show_command_fn,
};
/* *INDENT-ON* */
clib_error_t *
tap_cli_init (vlib_main_t * vm)
{
return 0;
}
VLIB_INIT_FUNCTION (tap_cli_init);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
|
