/*
* 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
/*
* 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.
*/
#include <vnet/ip/ip.h>
#include <vnet/ip/ip_punt_drop.h>
#include <vnet/policer/policer.h>
#include <vnet/policer/police_inlines.h>
/* *INDENT-OFF* */
VNET_FEATURE_ARC_INIT (ip6_punt) =
{
.arc_name = "ip6-punt",
.start_nodes = VNET_FEATURES ("ip6-punt"),
};
VNET_FEATURE_ARC_INIT (ip6_drop) =
{
.arc_name = "ip6-drop",
.start_nodes = VNET_FEATURES ("ip6-drop", "ip6-not-enabled"),
};
/* *INDENT-ON* */
ip_punt_policer_t ip6_punt_policer_cfg;
static char *ip6_punt_policer_error_strings[] = {
#define _(sym,string) string,
foreach_ip_punt_policer_error
#undef _
};
static uword
ip6_punt_policer (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
return (ip_punt_policer (vm, node, frame,
vnet_feat_arc_ip6_punt.feature_arc_index,
ip6_punt_policer_cfg.policer_index));
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_punt_policer_node, static) = {
.function = ip6_punt_policer,
.name = "ip6-punt-policer",
.vector_size = sizeof (u32),
.n_next_nodes = IP_PUNT_POLICER_N_NEXT,
.format_trace = format_ip_punt_policer_trace,
.n_errors = ARRAY_LEN(ip6_punt_policer_error_strings),
.error_strings = ip6_punt_policer_error_strings,
/* edit / add dispositions here */
.next_nodes = {
[IP_PUNT_POLICER_NEXT_DROP] = "ip6-drop",
},
};
VLIB_NODE_FUNCTION_MULTIARCH (ip6_punt_policer_node,
ip6_punt_policer);
VNET_FEATURE_INIT (ip6_punt_policer_node, static) = {
.arc_name = "ip6-punt",
.node_name = "ip6-punt-policer",
.runs_before = VNET_FEATURES("ip6-punt-redirect")
};
/* *INDENT-ON* */
static uword
ip6_drop (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
{
if (node->flags & VLIB_NODE_FLAG_TRACE)
ip6_forward_next_trace (vm, node, frame, VLIB_TX);
return ip_drop_or_punt (vm, node, frame,
vnet_feat_arc_ip6_drop.feature_arc_index);
}
static uword
ip6_not_enabled (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
if (node->flags & VLIB_NODE_FLAG_TRACE)
ip6_forward_next_trace (vm, node, frame, VLIB_TX);
return ip_drop_or_punt (vm, node, frame,
vnet_feat_arc_ip6_drop.feature_arc_index);
}
static uword
ip6_punt (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame)
{
if (node->flags & VLIB_NODE_FLAG_TRACE)
ip6_forward_next_trace (vm, node, frame, VLIB_TX);
return ip_drop_or_punt (vm, node, frame,
vnet_feat_arc_ip6_punt.feature_arc_index);
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_drop_node, static) =
{
.function = ip6_drop,
.name = "ip6-drop",
.vector_size = sizeof (u32),
.format_trace = format_ip6_forward_next_trace,
.n_next_nodes = 1,
.next_nodes = {
[0] = "error-drop",
},
};
VLIB_NODE_FUNCTION_MULTIARCH (ip6_drop_node, ip6_drop);
VLIB_REGISTER_NODE (ip6_not_enabled_node, static) =
{
.function = ip6_not_enabled,
.name = "ip6-not-enabled",
.vector_size = sizeof (u32),
.format_trace = format_ip6_forward_next_trace,
.n_next_nodes = 1,
.next_nodes = {
[0] = "error-drop",
},
};
VLIB_NODE_FUNCTION_MULTIARCH (ip6_not_enabled_node, ip6_not_enabled);
VLIB_REGISTER_NODE (ip6_punt_node, static) =
{
.function = ip6_punt,
.name = "ip6-punt",
.vector_size = sizeof (u32),
.format_trace = format_ip6_forward_next_trace,
.n_next_nodes = 1,
.next_nodes = {
[0] = "error-punt",
},
};
VLIB_NODE_FUNCTION_MULTIARCH (ip6_punt_node, ip6_punt);
VNET_FEATURE_INIT (ip6_punt_end_of_arc, static) = {
.arc_name = "ip6-punt",
.node_name = "error-punt",
.runs_before = 0, /* not before any other features */
};
VNET_FEATURE_INIT (ip6_drop_end_of_arc, static) = {
.arc_name = "ip6-drop",
.node_name = "error-drop",
.runs_before = 0, /* not before any other features */
};
/* *INDENT-ON */
void
ip6_punt_policer_add_del (u8 is_add, u32 policer_index)
{
ip6_punt_policer_cfg.policer_index = policer_index;
vnet_feature_enable_disable ("ip6-punt", "ip6-punt-policer",
0, is_add, 0, 0);
}
static clib_error_t *
ip6_punt_police_cmd (vlib_main_t * vm,
unformat_input_t * main_input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
clib_error_t *error = 0;
u32 policer_index;
u8 is_add = 1;
policer_index = ~0;
if (!unformat_user (main_input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%d", &policer_index))
;
else if (unformat (line_input, "del"))
is_add = 0;
else if (unformat (line_input, "add"))
is_add = 1;
else
{
error = unformat_parse_error (line_input);
goto done;
}
}
if (is_add && ~0 == policer_index)
{
error = clib_error_return (0, "expected policer index `%U'",
format_unformat_error, line_input);
goto done;
}
if (!is_add)
policer_index = ~0;
ip6_punt_policer_add_del(is_add, policer_index);
done:
unformat_free (line_input);
return (error);
}
/*?
*
* @cliexpar
* @cliexcmd{set ip punt policer <INDEX>}
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ip6_punt_policer_command, static) =
{
.path = "ip6 punt policer",
.function = ip6_punt_police_cmd,
.short_help = "ip6 punt policer [add|del] <index>",
};
ip_punt_redirect_t ip6_punt_redirect_cfg = {
.any_rx_sw_if_index = {
.tx_sw_if_index = ~0,
.adj_index = ADJ_INDEX_INVALID,
},
};
/* *INDENT-ON* */
#define foreach_ip6_punt_redirect_error \
_(DROP, "ip6 punt redirect drop")
typedef enum
{
#define _(sym,str) IP6_PUNT_REDIRECT_ERROR_##sym,
foreach_ip6_punt_redirect_error
#undef _
IP6_PUNT_REDIRECT_N_ERROR,
} ip6_punt_redirect_error_t;
static char *ip6_punt_redirect_error_strings[] = {
#define _(sym,string) string,
foreach_ip6_punt_redirect_error
#undef _
};
static uword
ip6_punt_redirect (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame)
{
return (ip_punt_redirect (vm, node, frame,
vnet_feat_arc_ip6_punt.feature_arc_index,
&ip6_punt_redirect_cfg));
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_punt_redirect_node, static) = {
.function = ip6_punt_redirect,
.name = "ip6-punt-redirect",
.vector_size = sizeof (u32),
.n_next_nodes = IP_PUNT_REDIRECT_N_NEXT,
.format_trace = format_ip_punt_redirect_trace,
.n_errors = ARRAY_LEN(ip6_punt_redirect_error_strings),
.error_strings = ip6_punt_redirect_error_strings,
/* edit / add dispositions here */
.next_nodes = {
[IP_PUNT_REDIRECT_NEXT_DROP] = "ip6-drop",
[IP_PUNT_REDIRECT_NEXT_TX] = "ip6-rewrite",
[IP_PUNT_REDIRECT_NEXT_ARP] = "ip6-discover-neighbor",
},
};
VLIB_NODE_FUNCTION_MULTIARCH (ip6_punt_redirect_node,
ip6_punt_redirect);
VNET_FEATURE_INIT (ip6_punt_redirect_node, static) = {
.arc_name = "ip6-punt",
.node_name = "ip6-punt-redirect",
.runs_before = VNET_FEATURES("error-punt")
};
/* *INDENT-ON* */
void
ip6_punt_redirect_add (u32 rx_sw_if_index,
u32 tx_sw_if_index, ip46_address_t * nh)
{
ip_punt_redirect_rx_t rx = {
.tx_sw_if_index = tx_sw_if_index,
.nh = *nh,
};
ip_punt_redirect_add (&ip6_punt_redirect_cfg,
rx_sw_if_index, &rx, FIB_PROTOCOL_IP6, VNET_LINK_IP6);
vnet_feature_enable_disable ("ip6-punt", "ip6-punt-redirect", 0, 1, 0, 0);
}
void
ip6_punt_redirect_del (u32 rx_sw_if_index)
{
vnet_feature_enable_disable ("ip6-punt", "ip6-punt-redirect", 0, 0, 0, 0);
ip_punt_redirect_del (&ip6_punt_redirect_cfg, rx_sw_if_index);
}
static clib_error_t *
ip6_punt_redirect_cmd (vlib_main_t * vm,
unformat_input_t * main_input,
vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
clib_error_t *error = 0;
u32 rx_sw_if_index = 0;
u32 tx_sw_if_index = 0;
ip46_address_t nh;
vnet_main_t *vnm;
u8 is_add;
is_add = 1;
vnm = vnet_get_main ();
if (!unformat_user (main_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, "add"))
is_add = 1;
else if (unformat (line_input, "rx all"))
rx_sw_if_index = ~0;
else if (unformat (line_input, "rx %U",
unformat_vnet_sw_interface, vnm, &rx_sw_if_index))
;
else if (unformat (line_input, "via %U %U",
unformat_ip6_address,
&nh.ip6,
unformat_vnet_sw_interface, vnm, &tx_sw_if_index))
;
else if (unformat (line_input, "via %U",
unformat_vnet_sw_interface, vnm, &tx_sw_if_index))
memset (&nh, 0, sizeof (nh));
else
{
error = unformat_parse_error (line_input);
goto done;
}
}
if (is_add)
{
if (rx_sw_if_index && tx_sw_if_index)
{
ip6_punt_redirect_add (rx_sw_if_index, tx_sw_if_index, &nh);
}
}
else
{
if (rx_sw_if_index)
{
ip6_punt_redirect_del (rx_sw_if_index);
}
}
done:
unformat_free (line_input);
return (error);
}
/*?
*
* @cliexpar
* @cliexcmd{set ip punt policer <INDEX>}
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (ip6_punt_redirect_command, static) =
{
.path = "ip6 punt redirect",
.function = ip6_punt_redirect_cmd,
.short_help = "ip6 punt redirect [add|del] rx [<interface>|all] via [<nh>] <tx_interface>",
};
/* *INDENT-ON* */
static clib_error_t *
ip6_punt_redirect_show_cmd (vlib_main_t * vm,
unformat_input_t * main_input,
vlib_cli_command_t * cmd)
{
vlib_cli_output (vm, "%U", format_ip_punt_redirect, &ip6_punt_redirect_cfg);
return (NULL);
}
/*?
*
* @cliexpar
* @cliexcmd{set ip punt policer <INDEX>}
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (show_ip6_punt_redirect_command, static) =
{
.path = "show ip6 punt redirect",
.function = ip6_punt_redirect_show_cmd,
.short_help = "show ip6 punt redirect",
.is_mp_safe = 1,
};
/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
