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gerrit.nordix.org / fdio / vpp / 95875774bc69a81b1a17963642fc574070ba37d0 / . / src / vnet / ip / ip_in_out_acl.c
blob: d8d6d768e93c66fb7caa1357b619c2de19f4c936 [file] [log] [blame]
/*
* 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/classify/vnet_classify.h>
#include <vnet/classify/in_out_acl.h>
typedef struct
{
u32 sw_if_index;
u32 next_index;
u32 table_index;
u32 offset;
}
ip_in_out_acl_trace_t;
/* packet trace format function */
static u8 *
format_ip_in_out_acl_trace (u8 * s, u32 is_output, 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 *);
ip_in_out_acl_trace_t *t = va_arg (*args, ip_in_out_acl_trace_t *);
const vnet_classify_main_t *vcm = &vnet_classify_main;
const u32 indent = format_get_indent (s);
vnet_classify_table_t *table;
vnet_classify_entry_t *e;
s =
format (s, "%s: sw_if_index %d, next_index %d, table_index %d, offset %d",
is_output ? "OUTACL" : "INACL", t->sw_if_index, t->next_index,
t->table_index, t->offset);
if (pool_is_free_index (vcm->tables, t->table_index))
return format (s, "\n%Uno table", format_white_space, indent + 4);
if (~0 == t->offset)
return format (s, "\n%Uno match", format_white_space, indent + 4);
table = vnet_classify_table_get (t->table_index);
e = vnet_classify_get_entry (table, t->offset);
return format (s, "\n%U%U", format_white_space, indent + 4,
format_classify_entry, table, e);
}
static u8 *
format_ip_inacl_trace (u8 * s, va_list * args)
{
return format_ip_in_out_acl_trace (s, 0 /* is_output */ , args);
}
static u8 *
format_ip_outacl_trace (u8 * s, va_list * args)
{
return format_ip_in_out_acl_trace (s, 1 /* is_output */ , args);
}
extern vlib_node_registration_t ip4_inacl_node;
extern vlib_node_registration_t ip4_outacl_node;
extern vlib_node_registration_t ip6_inacl_node;
extern vlib_node_registration_t ip6_outacl_node;
#define foreach_ip_inacl_error \
_(MISS, "input ACL misses") \
_(HIT, "input ACL hits") \
_(CHAIN_HIT, "input ACL hits after chain walk")
#define foreach_ip_outacl_error \
_(MISS, "output ACL misses") \
_(HIT, "output ACL hits") \
_(CHAIN_HIT, "output ACL hits after chain walk")
typedef enum
{
#define _(sym,str) IP_INACL_ERROR_##sym,
foreach_ip_inacl_error
#undef _
IP_INACL_N_ERROR,
}
ip_inacl_error_t;
static char *ip_inacl_error_strings[] = {
#define _(sym,string) string,
foreach_ip_inacl_error
#undef _
};
typedef enum
{
#define _(sym,str) IP_OUTACL_ERROR_##sym,
foreach_ip_outacl_error
#undef _
IP_OUTACL_N_ERROR,
}
ip_outacl_error_t;
static char *ip_outacl_error_strings[] = {
#define _(sym,string) string,
foreach_ip_outacl_error
#undef _
};
static_always_inline void
ip_in_out_acl_inline_trace (
vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame,
vlib_buffer_t **b, u16 *next, u32 n_left, u32 *hits__, u32 *misses__,
u32 *chain_hits__, const vlib_error_t error_none,
const vlib_error_t error_deny, const vlib_error_t error_miss,
vnet_classify_table_t *tables, const u32 *table_index_by_sw_if_index,
u32 *fib_index_by_sw_if_index, vnet_config_main_t *cm,
const vlib_rx_or_tx_t way, const int is_output, const int do_trace)
{
f64 now = vlib_time_now (vm);
u32 hits = 0;
u32 misses = 0;
u32 chain_hits = 0;
u32 n_next_nodes = node->n_next_nodes;
u8 *h[4];
u32 sw_if_index[4];
u32 table_index[4];
vnet_classify_table_t *t[4] = { 0, 0 };
u32 hash[4];
/* calculate hashes for b[0] & b[1] */
if (n_left >= 2)
{
/* ~0 is used as a wildcard to say 'always use sw_if_index 0'
* aka local0. It is used when we do not care about the sw_if_index, as
* when punting */
sw_if_index[2] = ~0 == way ? 0 : vnet_buffer (b[0])->sw_if_index[way];
sw_if_index[3] = ~0 == way ? 0 : vnet_buffer (b[1])->sw_if_index[way];
table_index[2] = table_index_by_sw_if_index[sw_if_index[2]];
table_index[3] = table_index_by_sw_if_index[sw_if_index[3]];
t[2] = pool_elt_at_index (tables, table_index[2]);
t[3] = pool_elt_at_index (tables, table_index[3]);
if (t[2]->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA)
h[2] =
(void *) vlib_buffer_get_current (b[0]) + t[2]->current_data_offset;
else
h[2] = b[0]->data;
if (t[3]->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA)
h[3] =
(void *) vlib_buffer_get_current (b[1]) + t[3]->current_data_offset;
else
h[3] = b[1]->data;
if (is_output)
{
/* Save the rewrite length, since we are using the l2_classify struct */
vnet_buffer (b[0])->l2.l2_len =
vnet_buffer (b[0])->ip.save_rewrite_length;
/* advance the match pointer so the matching happens on IP header */
h[2] += vnet_buffer (b[0])->l2.l2_len;
/* Save the rewrite length, since we are using the l2_classify struct */
vnet_buffer (b[1])->l2.l2_len =
vnet_buffer (b[1])->ip.save_rewrite_length;
/* advance the match pointer so the matching happens on IP header */
h[3] += vnet_buffer (b[1])->l2.l2_len;
}
hash[2] = vnet_classify_hash_packet_inline (t[2], (u8 *) h[2]);
hash[3] = vnet_classify_hash_packet_inline (t[3], (u8 *) h[3]);
vnet_buffer (b[0])->l2_classify.hash = hash[2];
vnet_buffer (b[1])->l2_classify.hash = hash[3];
vnet_buffer (b[0])->l2_classify.table_index = table_index[2];
vnet_buffer (b[1])->l2_classify.table_index = table_index[3];
vnet_buffer (b[0])->l2_classify.opaque_index = ~0;
vnet_buffer (b[1])->l2_classify.opaque_index = ~0;
vnet_classify_prefetch_bucket (t[2],
vnet_buffer (b[0])->l2_classify.hash);
vnet_classify_prefetch_bucket (t[3],
vnet_buffer (b[1])->l2_classify.hash);
}
while (n_left >= 2)
{
vnet_classify_entry_t *e[2] = { 0, 0 };
u32 _next[2] = { ACL_NEXT_INDEX_DENY, ACL_NEXT_INDEX_DENY };
h[0] = h[2];
h[1] = h[3];
t[0] = t[2];
t[1] = t[3];
sw_if_index[0] = sw_if_index[2];
sw_if_index[1] = sw_if_index[3];
table_index[0] = table_index[2];
table_index[1] = table_index[3];
hash[0] = hash[2];
hash[1] = hash[3];
/* prefetch next iteration */
if (n_left >= 6)
{
vlib_prefetch_buffer_header (b[4], LOAD);
vlib_prefetch_buffer_header (b[5], LOAD);
clib_prefetch_load (b[4]->data);
clib_prefetch_load (b[5]->data);
}
/* calculate hashes for b[2] & b[3] */
if (n_left >= 4)
{
sw_if_index[2] =
~0 == way ? 0 : vnet_buffer (b[2])->sw_if_index[way];
sw_if_index[3] =
~0 == way ? 0 : vnet_buffer (b[3])->sw_if_index[way];
table_index[2] = table_index_by_sw_if_index[sw_if_index[2]];
table_index[3] = table_index_by_sw_if_index[sw_if_index[3]];
t[2] = pool_elt_at_index (tables, table_index[2]);
t[3] = pool_elt_at_index (tables, table_index[3]);
if (t[2]->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA)
h[2] =
(void *) vlib_buffer_get_current (b[2]) +
t[2]->current_data_offset;
else
h[2] = b[2]->data;
if (t[3]->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA)
h[3] =
(void *) vlib_buffer_get_current (b[3]) +
t[3]->current_data_offset;
else
h[3] = b[3]->data;
if (is_output)
{
/* Save the rewrite length, since we are using the l2_classify struct */
vnet_buffer (b[2])->l2.l2_len =
vnet_buffer (b[2])->ip.save_rewrite_length;
/* advance the match pointer so the matching happens on IP header */
h[2] += vnet_buffer (b[2])->l2.l2_len;
/* Save the rewrite length, since we are using the l2_classify struct */
vnet_buffer (b[3])->l2.l2_len =
vnet_buffer (b[3])->ip.save_rewrite_length;
/* advance the match pointer so the matching happens on IP header */
h[3] += vnet_buffer (b[3])->l2.l2_len;
}
hash[2] = vnet_classify_hash_packet_inline (t[2], (u8 *) h[2]);
hash[3] = vnet_classify_hash_packet_inline (t[3], (u8 *) h[3]);
vnet_buffer (b[2])->l2_classify.hash = hash[2];
vnet_buffer (b[3])->l2_classify.hash = hash[3];
vnet_buffer (b[2])->l2_classify.table_index = table_index[2];
vnet_buffer (b[3])->l2_classify.table_index = table_index[3];
vnet_buffer (b[2])->l2_classify.opaque_index = ~0;
vnet_buffer (b[3])->l2_classify.opaque_index = ~0;
vnet_classify_prefetch_bucket (t[2],
vnet_buffer (b[2])->
l2_classify.hash);
vnet_classify_prefetch_bucket (t[3],
vnet_buffer (b[3])->
l2_classify.hash);
}
/* find entry for b[0] & b[1] */
vnet_get_config_data (cm, &b[0]->current_config_index, &_next[0],
/* # bytes of config data */ 0);
vnet_get_config_data (cm, &b[1]->current_config_index, &_next[1],
/* # bytes of config data */ 0);
if (PREDICT_TRUE (table_index[0] != ~0))
{
e[0] =
vnet_classify_find_entry_inline (t[0], (u8 *) h[0], hash[0], now);
if (e[0])
{
vnet_buffer (b[0])->l2_classify.opaque_index
= e[0]->opaque_index;
vlib_buffer_advance (b[0], e[0]->advance);
_next[0] = (e[0]->next_index < n_next_nodes) ?
e[0]->next_index : _next[0];
hits++;
b[0]->error =
(_next[0] == ACL_NEXT_INDEX_DENY) ? error_deny : error_none;
if (!is_output)
{
if (e[0]->action == CLASSIFY_ACTION_SET_IP4_FIB_INDEX ||
e[0]->action == CLASSIFY_ACTION_SET_IP6_FIB_INDEX)
vnet_buffer (b[0])->sw_if_index[VLIB_TX] = e[0]->metadata;
else if (e[0]->action == CLASSIFY_ACTION_SET_METADATA)
{
vnet_buffer (b[0])->ip.adj_index[VLIB_TX] =
e[0]->metadata;
/* For source check in case we skip the lookup node */
ip_lookup_set_buffer_fib_index (fib_index_by_sw_if_index,
b[0]);
}
}
}
else
{
while (1)
{
if (PREDICT_TRUE (t[0]->next_table_index != ~0))
t[0] = pool_elt_at_index (tables, t[0]->next_table_index);
else
{
_next[0] = (t[0]->miss_next_index < n_next_nodes) ?
t[0]->miss_next_index : _next[0];
misses++;
b[0]->error = (_next[0] == ACL_NEXT_INDEX_DENY) ?
error_miss :
error_none;
break;
}
if (t[0]->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA)
h[0] =
(void *) vlib_buffer_get_current (b[0]) +
t[0]->current_data_offset;
else
h[0] = b[0]->data;
/* advance the match pointer so the matching happens on IP header */
if (is_output)
h[0] += vnet_buffer (b[0])->l2.l2_len;
hash[0] =
vnet_classify_hash_packet_inline (t[0], (u8 *) h[0]);
e[0] =
vnet_classify_find_entry_inline (t[0], (u8 *) h[0],
hash[0], now);
if (e[0])
{
vnet_buffer (b[0])->l2_classify.opaque_index
= e[0]->opaque_index;
vlib_buffer_advance (b[0], e[0]->advance);
_next[0] = (e[0]->next_index < n_next_nodes) ?
e[0]->next_index : _next[0];
hits++;
chain_hits++;
b[0]->error = (_next[0] == ACL_NEXT_INDEX_DENY) ?
error_deny :
error_none;
if (!is_output)
{
if (e[0]->action ==
CLASSIFY_ACTION_SET_IP4_FIB_INDEX
|| e[0]->action ==
CLASSIFY_ACTION_SET_IP6_FIB_INDEX)
vnet_buffer (b[0])->sw_if_index[VLIB_TX] =
e[0]->metadata;
else if (e[0]->action ==
CLASSIFY_ACTION_SET_METADATA)
{
vnet_buffer (b[0])->ip.adj_index[VLIB_TX] =
e[0]->metadata;
/* For source check in case we skip the lookup
* node */
ip_lookup_set_buffer_fib_index (
fib_index_by_sw_if_index, b[0]);
}
}
break;
}
}
}
}
if (PREDICT_TRUE (table_index[1] != ~0))
{
e[1] =
vnet_classify_find_entry_inline (t[1], (u8 *) h[1], hash[1], now);
if (e[1])
{
vnet_buffer (b[1])->l2_classify.opaque_index
= e[1]->opaque_index;
vlib_buffer_advance (b[1], e[1]->advance);
_next[1] = (e[1]->next_index < n_next_nodes) ?
e[1]->next_index : _next[1];
hits++;
b[1]->error =
(_next[1] == ACL_NEXT_INDEX_DENY) ? error_deny : error_none;
if (!is_output)
{
if (e[1]->action == CLASSIFY_ACTION_SET_IP4_FIB_INDEX ||
e[1]->action == CLASSIFY_ACTION_SET_IP6_FIB_INDEX)
vnet_buffer (b[1])->sw_if_index[VLIB_TX] = e[1]->metadata;
else if (e[1]->action == CLASSIFY_ACTION_SET_METADATA)
{
vnet_buffer (b[1])->ip.adj_index[VLIB_TX] =
e[1]->metadata;
/* For source check in case we skip the lookup node */
ip_lookup_set_buffer_fib_index (fib_index_by_sw_if_index,
b[1]);
}
}
}
else
{
while (1)
{
if (PREDICT_TRUE (t[1]->next_table_index != ~0))
t[1] = pool_elt_at_index (tables, t[1]->next_table_index);
else
{
_next[1] = (t[1]->miss_next_index < n_next_nodes) ?
t[1]->miss_next_index : _next[1];
misses++;
b[1]->error = (_next[1] == ACL_NEXT_INDEX_DENY) ?
error_miss :
error_none;
break;
}
if (t[1]->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA)
h[1] =
(void *) vlib_buffer_get_current (b[1]) +
t[1]->current_data_offset;
else
h[1] = b[1]->data;
/* advance the match pointer so the matching happens on IP header */
if (is_output)
h[1] += vnet_buffer (b[1])->l2.l2_len;
hash[1] =
vnet_classify_hash_packet_inline (t[1], (u8 *) h[1]);
e[1] =
vnet_classify_find_entry_inline (t[1], (u8 *) h[1],
hash[1], now);
if (e[1])
{
vnet_buffer (b[1])->l2_classify.opaque_index
= e[1]->opaque_index;
vlib_buffer_advance (b[1], e[1]->advance);
_next[1] = (e[1]->next_index < n_next_nodes) ?
e[1]->next_index : _next[1];
hits++;
chain_hits++;
b[1]->error = (_next[1] == ACL_NEXT_INDEX_DENY) ?
error_deny :
error_none;
if (!is_output)
{
if (e[1]->action ==
CLASSIFY_ACTION_SET_IP4_FIB_INDEX
|| e[1]->action ==
CLASSIFY_ACTION_SET_IP6_FIB_INDEX)
vnet_buffer (b[1])->sw_if_index[VLIB_TX] =
e[1]->metadata;
else if (e[1]->action ==
CLASSIFY_ACTION_SET_METADATA)
{
vnet_buffer (b[1])->ip.adj_index[VLIB_TX] =
e[1]->metadata;
/* For source check in case we skip the lookup
* node */
ip_lookup_set_buffer_fib_index (
fib_index_by_sw_if_index, b[1]);
}
}
break;
}
}
}
}
if (do_trace && b[0]->flags & VLIB_BUFFER_IS_TRACED)
{
ip_in_out_acl_trace_t *_t =
vlib_add_trace (vm, node, b[0], sizeof (*_t));
_t->sw_if_index =
~0 == way ? 0 : vnet_buffer (b[0])->sw_if_index[way];
_t->next_index = _next[0];
_t->table_index = table_index[0];
_t->offset = (e[0]
&& t[0]) ? vnet_classify_get_offset (t[0], e[0]) : ~0;
}
if (do_trace && b[1]->flags & VLIB_BUFFER_IS_TRACED)
{
ip_in_out_acl_trace_t *_t =
vlib_add_trace (vm, node, b[1], sizeof (*_t));
_t->sw_if_index =
~0 == way ? 0 : vnet_buffer (b[1])->sw_if_index[way];
_t->next_index = _next[1];
_t->table_index = table_index[1];
_t->offset = (e[1]
&& t[1]) ? vnet_classify_get_offset (t[1], e[1]) : ~0;
}
if ((_next[0] == ACL_NEXT_INDEX_DENY) && is_output)
{
/* on output, for the drop node to work properly, go back to ip header */
vlib_buffer_advance (b[0], vnet_buffer (b[0])->l2.l2_len);
}
if ((_next[1] == ACL_NEXT_INDEX_DENY) && is_output)
{
/* on output, for the drop node to work properly, go back to ip header */
vlib_buffer_advance (b[1], vnet_buffer (b[1])->l2.l2_len);
}
next[0] = _next[0];
next[1] = _next[1];
/* _next */
next += 2;
b += 2;
n_left -= 2;
}
while (n_left > 0)
{
u8 *h0;
u32 sw_if_index0;
u32 table_index0;
vnet_classify_table_t *t0 = 0;
vnet_classify_entry_t *e0 = 0;
u32 next0 = ACL_NEXT_INDEX_DENY;
u32 hash0;
sw_if_index0 = ~0 == way ? 0 : vnet_buffer (b[0])->sw_if_index[way];
table_index0 = table_index_by_sw_if_index[sw_if_index0];
t0 = pool_elt_at_index (tables, table_index0);
if (t0->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA)
h0 =
(void *) vlib_buffer_get_current (b[0]) + t0->current_data_offset;
else
h0 = b[0]->data;
if (is_output)
{
/* Save the rewrite length, since we are using the l2_classify struct */
vnet_buffer (b[0])->l2.l2_len =
vnet_buffer (b[0])->ip.save_rewrite_length;
/* advance the match pointer so the matching happens on IP header */
h0 += vnet_buffer (b[0])->l2.l2_len;
}
vnet_buffer (b[0])->l2_classify.hash =
vnet_classify_hash_packet (t0, (u8 *) h0);
vnet_buffer (b[0])->l2_classify.table_index = table_index0;
vnet_buffer (b[0])->l2_classify.opaque_index = ~0;
vnet_get_config_data (cm, &b[0]->current_config_index, &next0,
/* # bytes of config data */ 0);
if (PREDICT_TRUE (table_index0 != ~0))
{
hash0 = vnet_buffer (b[0])->l2_classify.hash;
t0 = pool_elt_at_index (tables, table_index0);
if (t0->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA)
h0 =
(void *) vlib_buffer_get_current (b[0]) +
t0->current_data_offset;
else
h0 = b[0]->data;
/* advance the match pointer so the matching happens on IP header */
if (is_output)
h0 += vnet_buffer (b[0])->l2.l2_len;
e0 = vnet_classify_find_entry_inline (t0, (u8 *) h0, hash0, now);
if (e0)
{
vnet_buffer (b[0])->l2_classify.opaque_index = e0->opaque_index;
vlib_buffer_advance (b[0], e0->advance);
next0 = (e0->next_index < n_next_nodes) ?
e0->next_index : next0;
hits++;
b[0]->error =
(next0 == ACL_NEXT_INDEX_DENY) ? error_deny : error_none;
if (!is_output)
{
if (e0->action == CLASSIFY_ACTION_SET_IP4_FIB_INDEX ||
e0->action == CLASSIFY_ACTION_SET_IP6_FIB_INDEX)
vnet_buffer (b[0])->sw_if_index[VLIB_TX] = e0->metadata;
else if (e0->action == CLASSIFY_ACTION_SET_METADATA)
{
vnet_buffer (b[0])->ip.adj_index[VLIB_TX] = e0->metadata;
/* For source check in case we skip the lookup node */
ip_lookup_set_buffer_fib_index (fib_index_by_sw_if_index,
b[0]);
}
}
}
else
{
while (1)
{
if (PREDICT_TRUE (t0->next_table_index != ~0))
t0 = pool_elt_at_index (tables, t0->next_table_index);
else
{
next0 = (t0->miss_next_index < n_next_nodes) ?
t0->miss_next_index : next0;
misses++;
b[0]->error = (next0 == ACL_NEXT_INDEX_DENY) ?
error_miss :
error_none;
break;
}
if (t0->current_data_flag == CLASSIFY_FLAG_USE_CURR_DATA)
h0 =
(void *) vlib_buffer_get_current (b[0]) +
t0->current_data_offset;
else
h0 = b[0]->data;
/* advance the match pointer so the matching happens on IP header */
if (is_output)
h0 += vnet_buffer (b[0])->l2.l2_len;
hash0 = vnet_classify_hash_packet_inline (t0, (u8 *) h0);
e0 = vnet_classify_find_entry_inline
(t0, (u8 *) h0, hash0, now);
if (e0)
{
vnet_buffer (b[0])->l2_classify.opaque_index
= e0->opaque_index;
vlib_buffer_advance (b[0], e0->advance);
next0 = (e0->next_index < n_next_nodes) ?
e0->next_index : next0;
hits++;
b[0]->error = (next0 == ACL_NEXT_INDEX_DENY) ?
error_deny :
error_none;
if (!is_output)
{
if (e0->action ==
CLASSIFY_ACTION_SET_IP4_FIB_INDEX
|| e0->action ==
CLASSIFY_ACTION_SET_IP6_FIB_INDEX)
vnet_buffer (b[0])->sw_if_index[VLIB_TX] =
e0->metadata;
else if (e0->action == CLASSIFY_ACTION_SET_METADATA)
{
vnet_buffer (b[0])->ip.adj_index[VLIB_TX] =
e0->metadata;
/* For source check in case we skip the lookup
* node */
ip_lookup_set_buffer_fib_index (
fib_index_by_sw_if_index, b[0]);
}
}
break;
}
}
}
}
if (do_trace && b[0]->flags & VLIB_BUFFER_IS_TRACED)
{
ip_in_out_acl_trace_t *t =
vlib_add_trace (vm, node, b[0], sizeof (*t));
t->sw_if_index =
~0 == way ? 0 : vnet_buffer (b[0])->sw_if_index[way];
t->next_index = next0;
t->table_index = table_index0;
t->offset = (e0 && t0) ? vnet_classify_get_offset (t0, e0) : ~0;
}
if ((next0 == ACL_NEXT_INDEX_DENY) && is_output)
{
/* on output, for the drop node to work properly, go back to ip header */
vlib_buffer_advance (b[0], vnet_buffer (b[0])->l2.l2_len);
}
next[0] = next0;
/* next */
next++;
b++;
n_left--;
}
*hits__ = hits;
*misses__ = misses;
*chain_hits__ = chain_hits;
}
static_always_inline uword
ip_in_out_acl_inline (vlib_main_t *vm, vlib_node_runtime_t *node,
vlib_frame_t *frame, const in_out_acl_table_id_t tid,
u32 *fib_index_by_sw_if_index,
const vlib_node_registration_t *parent_error_node,
const u32 error_none_index, const u32 error_deny_index,
const u32 error_miss_index, const vlib_rx_or_tx_t way,
const int is_output)
{
const in_out_acl_main_t *am = &in_out_acl_main;
vnet_classify_table_t *tables = am->vnet_classify_main->tables;
u32 *from = vlib_frame_vector_args (frame);
const u32 *table_index_by_sw_if_index =
am->classify_table_index_by_sw_if_index[is_output][tid];
vnet_config_main_t *cm = am->vnet_config_main[is_output][tid];
const vlib_node_runtime_t *error_node =
vlib_node_get_runtime (vm, parent_error_node->index);
const vlib_error_t error_none = error_node->errors[error_none_index];
const vlib_error_t error_deny = error_node->errors[error_deny_index];
const vlib_error_t error_miss = error_node->errors[error_miss_index];
vlib_buffer_t *bufs[VLIB_FRAME_SIZE];
u16 nexts[VLIB_FRAME_SIZE];
u32 hits, misses, chain_hits;
vlib_get_buffers (vm, from, bufs, frame->n_vectors);
#define ip_in_out_acl_inline_trace__(do_trace) \
ip_in_out_acl_inline_trace ( \
vm, node, frame, bufs, nexts, frame->n_vectors, &hits, &misses, \
&chain_hits, error_deny, error_miss, error_none, tables, \
table_index_by_sw_if_index, fib_index_by_sw_if_index, cm, way, is_output, \
do_trace)
if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
ip_in_out_acl_inline_trace__ (1 /* do_trace */);
else
ip_in_out_acl_inline_trace__ (0 /* do_trace */);
vlib_node_increment_counter (
vm, node->node_index,
is_output ? IP_OUTACL_ERROR_MISS : IP_INACL_ERROR_MISS, misses);
vlib_node_increment_counter (
vm, node->node_index, is_output ? IP_OUTACL_ERROR_HIT : IP_INACL_ERROR_HIT,
hits);
vlib_node_increment_counter (vm, node->node_index,
is_output ? IP_OUTACL_ERROR_CHAIN_HIT :
IP_INACL_ERROR_CHAIN_HIT,
chain_hits);
vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
return frame->n_vectors;
}
VLIB_NODE_FN (ip4_inacl_node)
(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
{
return ip_in_out_acl_inline (
vm, node, frame, IN_OUT_ACL_TABLE_IP4, ip4_main.fib_index_by_sw_if_index,
&ip4_input_node, IP4_ERROR_NONE, IP4_ERROR_INACL_SESSION_DENY,
IP4_ERROR_INACL_TABLE_MISS, VLIB_RX, 0 /* is_output */);
}
VLIB_NODE_FN (ip4_punt_acl_node)
(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
{
return ip_in_out_acl_inline (
vm, node, frame, IN_OUT_ACL_TABLE_IP4_PUNT,
ip4_main.fib_index_by_sw_if_index, &ip4_input_node, IP4_ERROR_NONE,
IP4_ERROR_INACL_SESSION_DENY, IP4_ERROR_INACL_TABLE_MISS, ~0 /* way */,
0 /* is_output */);
}
VLIB_NODE_FN (ip4_outacl_node)
(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
{
return ip_in_out_acl_inline (
vm, node, frame, IN_OUT_ACL_TABLE_IP4, NULL, &ip4_input_node,
IP4_ERROR_NONE, IP4_ERROR_INACL_SESSION_DENY, IP4_ERROR_INACL_TABLE_MISS,
VLIB_TX, 1 /* is_output */);
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip4_inacl_node) = {
.name = "ip4-inacl",
.vector_size = sizeof (u32),
.format_trace = format_ip_inacl_trace,
.n_errors = ARRAY_LEN(ip_inacl_error_strings),
.error_strings = ip_inacl_error_strings,
.n_next_nodes = ACL_NEXT_INDEX_N_NEXT,
.next_nodes = {
[ACL_NEXT_INDEX_DENY] = "ip4-drop",
},
};
VLIB_REGISTER_NODE (ip4_punt_acl_node) = {
.name = "ip4-punt-acl",
.vector_size = sizeof (u32),
.format_trace = format_ip_inacl_trace,
.n_errors = ARRAY_LEN(ip_inacl_error_strings),
.error_strings = ip_inacl_error_strings,
.n_next_nodes = ACL_NEXT_INDEX_N_NEXT,
.next_nodes = {
[ACL_NEXT_INDEX_DENY] = "ip4-drop",
},
};
VLIB_REGISTER_NODE (ip4_outacl_node) = {
.name = "ip4-outacl",
.vector_size = sizeof (u32),
.format_trace = format_ip_outacl_trace,
.n_errors = ARRAY_LEN(ip_outacl_error_strings),
.error_strings = ip_outacl_error_strings,
.n_next_nodes = ACL_NEXT_INDEX_N_NEXT,
.next_nodes = {
[ACL_NEXT_INDEX_DENY] = "ip4-drop",
},
};
/* *INDENT-ON* */
VNET_FEATURE_INIT (ip4_punt_acl_feature) = {
.arc_name = "ip4-punt",
.node_name = "ip4-punt-acl",
.runs_after = VNET_FEATURES ("ip4-punt-policer"),
};
VLIB_NODE_FN (ip6_inacl_node) (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
return ip_in_out_acl_inline (
vm, node, frame, IN_OUT_ACL_TABLE_IP6, ip6_main.fib_index_by_sw_if_index,
&ip6_input_node, IP6_ERROR_NONE, IP6_ERROR_INACL_SESSION_DENY,
IP6_ERROR_INACL_TABLE_MISS, VLIB_RX, 0 /* is_output */);
}
VLIB_NODE_FN (ip6_punt_acl_node)
(vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
{
return ip_in_out_acl_inline (
vm, node, frame, IN_OUT_ACL_TABLE_IP6_PUNT,
ip4_main.fib_index_by_sw_if_index, &ip6_input_node, IP6_ERROR_NONE,
IP6_ERROR_INACL_SESSION_DENY, IP6_ERROR_INACL_TABLE_MISS, ~0 /* way */,
0 /* is_output */);
}
VLIB_NODE_FN (ip6_outacl_node) (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
return ip_in_out_acl_inline (
vm, node, frame, IN_OUT_ACL_TABLE_IP6, NULL, &ip6_input_node,
IP6_ERROR_NONE, IP6_ERROR_INACL_SESSION_DENY, IP6_ERROR_INACL_TABLE_MISS,
VLIB_TX, 1 /* is_output */);
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip6_inacl_node) = {
.name = "ip6-inacl",
.vector_size = sizeof (u32),
.format_trace = format_ip_inacl_trace,
.n_errors = ARRAY_LEN(ip_inacl_error_strings),
.error_strings = ip_inacl_error_strings,
.n_next_nodes = ACL_NEXT_INDEX_N_NEXT,
.next_nodes = {
[ACL_NEXT_INDEX_DENY] = "ip6-drop",
},
};
VLIB_REGISTER_NODE (ip6_punt_acl_node) = {
.name = "ip6-punt-acl",
.vector_size = sizeof (u32),
.format_trace = format_ip_inacl_trace,
.n_errors = ARRAY_LEN(ip_inacl_error_strings),
.error_strings = ip_inacl_error_strings,
.n_next_nodes = ACL_NEXT_INDEX_N_NEXT,
.next_nodes = {
[ACL_NEXT_INDEX_DENY] = "ip6-drop",
},
};
VLIB_REGISTER_NODE (ip6_outacl_node) = {
.name = "ip6-outacl",
.vector_size = sizeof (u32),
.format_trace = format_ip_outacl_trace,
.n_errors = ARRAY_LEN(ip_outacl_error_strings),
.error_strings = ip_outacl_error_strings,
.n_next_nodes = ACL_NEXT_INDEX_N_NEXT,
.next_nodes = {
[ACL_NEXT_INDEX_DENY] = "ip6-drop",
},
};
/* *INDENT-ON* */
VNET_FEATURE_INIT (ip6_punt_acl_feature) = {
.arc_name = "ip6-punt",
.node_name = "ip6-punt-acl",
.runs_after = VNET_FEATURES ("ip6-punt-policer"),
};
#ifndef CLIB_MARCH_VARIANT
static clib_error_t *
ip_in_out_acl_init (vlib_main_t * vm)
{
return 0;
}
VLIB_INIT_FUNCTION (ip_in_out_acl_init);
#endif /* CLIB_MARCH_VARIANT */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/