/*
* Copyright (c) 2018 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 <plugins/gbp/gbp_vxlan.h>
#include <plugins/gbp/gbp_learn.h>
#include <plugins/gbp/gbp_bridge_domain.h>
#include <plugins/gbp/gbp_route_domain.h>
#include <vnet/vxlan-gbp/vxlan_gbp.h>
#include <vlibmemory/api.h>
#include <vnet/fib/fib_table.h>
#include <vlib/punt.h>
/**
* A reference to a VXLAN-GBP tunnel created as a child/dependent tunnel
* of the tempplate GBP-VXLAN tunnel
*/
typedef struct vxlan_tunnel_ref_t_
{
gbp_itf_hdl_t vxr_itf;
u32 vxr_sw_if_index;
index_t vxr_parent;
gbp_vxlan_tunnel_layer_t vxr_layer;
} vxlan/*
* Copyright (c) 2016-2018 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 <stddef.h>
#include <netinet/in.h>
#include <vlib/vlib.h>
#include <vnet/vnet.h>
#include <vppinfra/error.h>
#include <acl/acl.h>
#include <vnet/ip/icmp46_packet.h>
#include <plugins/acl/fa_node.h>
#include <plugins/acl/acl.h>
#include <plugins/acl/lookup_context.h>
#include <plugins/acl/public_inlines.h>
#include <plugins/acl/session_inlines.h>
#include <vppinfra/bihash_40_8.h>
#include <vppinfra/bihash_template.h>
typedef struct
{
u32 next_index;
u32 sw_if_index;
u32 lc_index;
u32 match_acl_in_index;
u32 match_rule_index;
u64 packet_info[6];
u32 trace_bitmap;
u8 action;
} acl_fa_trace_t;
/* *INDENT-OFF* */
#define foreach_acl_fa_error \
_(ACL_DROP, "ACL deny packets") \
_(ACL_PERMIT, "ACL permit packets") \
_(ACL_NEW_SESSION, "new sessions added") \
_(ACL_EXIST_SESSION, "existing session packets") \
_(ACL_CHECK, "checked packets") \
_(ACL_RESTART_SESSION_TIMER, "restart session timer") \
_(ACL_TOO_MANY_SESSIONS, "too many sessions to add new") \
/* end of errors */
typedef enum
{
#define _(sym,str) ACL_FA_ERROR_##sym,
foreach_acl_fa_error
#undef _
ACL_FA_N_ERROR,
} acl_fa_error_t;
/* *INDENT-ON* */
always_inline u16
get_current_policy_epoch (acl_main_t * am, int is_input, u32 sw_if_index0)
{
u32 **p_epoch_vec =
is_input ? &am->input_policy_epoch_by_sw_if_index :
&am->output_policy_epoch_by_sw_if_index;
u16 current_policy_epoch =
sw_if_index0 < vec_len (*p_epoch_vec) ? vec_elt (*p_epoch_vec,
sw_if_index0)
: (is_input * FA_POLICY_EPOCH_IS_INPUT);
return current_policy_epoch;
}
always_inline void
maybe_trace_buffer (vlib_main_t * vm, vlib_node_runtime_t * node,
vlib_buffer_t * b, u32 sw_if_index0, u32 lc_index0,
u16 next0, int match_acl_in_index, int match_rule_index,
fa_5tuple_t * fa_5tuple, u8 action, u32 trace_bitmap)
{
if (PREDICT_FALSE (b->flags & VLIB_BUFFER_IS_TRACED))
{
acl_fa_trace_t *t = vlib_add_trace (vm, node, b, sizeof (*t));
t->sw_if_index = sw_if_index0;
t->lc_index = lc_index0;
t->next_index = next0;
t->match_acl_in_index = match_acl_in_index;
t->match_rule_index = match_rule_index;
t->packet_info[0] = fa_5tuple->kv_40_8.key[0];
t->packet_info[1] = fa_5tuple->kv_40_8.key[1];
t->packet_info[2] = fa_5tuple->kv_40_8.key[2];
t->packet_info[3] = fa_5tuple->kv_40_8.key[3];
t->packet_info[4] = fa_5tuple->kv_40_8.key[4];
t->packet_info[5] = fa_5tuple->kv_40_8.value;
t->action = action;
t->trace_bitmap = trace_bitmap;
}
}
always_inline int
stale_session_deleted (acl_main_t * am, int is_input,
acl_fa_per_worker_data_t * pw, u64 now,
u32 sw_if_index0, fa_full_session_id_t f_sess_id)
{
u16 current_policy_epoch =
get_current_policy_epoch (am, is_input, sw_if_index0);
/* if the MSB of policy epoch matches but not the LSB means it is a stale session */
if ((0 ==
((current_policy_epoch ^
f_sess_id.intf_policy_epoch) &
FA_POLICY_EPOCH_IS_INPUT))
&& (current_policy_epoch != f_sess_id.intf_policy_epoch))
{
/* delete session and increment the counter */
vec_validate (pw->fa_session_epoch_change_by_sw_if_index, sw_if_index0);
vec_elt (pw->fa_session_epoch_change_by_sw_if_index, sw_if_index0)++;
if (acl_fa_conn_list_delete_session (am, f_sess_id, now))
{
/* delete the session only if we were able to unlink it */
acl_fa_two_stage_delete_session (am, sw_if_index0, f_sess_id, now);
}
return 1;
}
else
return 0;
}
always_inline void
get_sw_if_index_xN (int vector_sz, int is_input, vlib_buffer_t ** b,
u32 * out_sw_if_index)
{
int ii;
for (ii = 0; ii < vector_sz; ii++)
if (is_input)
out_sw_if_index[ii] = vnet_buffer (b[ii])->sw_if_index[VLIB_RX];
else
out_sw_if_index[ii] = vnet_buffer (b[ii])->sw_if_index[VLIB_TX];
}
always_inline void
fill_5tuple_xN (int vector_sz, acl_main_t * am, int is_ip6, int is_input,
int is_l2_path, vlib_buffer_t ** b, u32 * sw_if_index,
fa_5tuple_t * out_fa_5tuple)
{
int ii;
for (ii = 0; ii < vector_sz; ii++)
acl_fill_5tuple (am, sw_if_index[ii], b[ii], is_ip6,
is_input, is_l2_path, &out_fa_5tuple[ii]);
}
always_inline void
make_session_hash_xN (int vector_sz, acl_main_t * am, int is_ip6,
u32 * sw_if_index, fa_5tuple_t * fa_5tuple,
u64 * out_hash)
{
int ii;
for (ii = 0; ii < vector_sz; ii++)
out_hash[ii] =
acl_fa_make_session_hash (am, is_ip6, sw_if_index[ii], &fa_5tuple[ii]);
}
always_inline void
prefetch_session_entry (acl_main_t * am, fa_full_session_id_t f_sess_id)
{
fa_session_t *sess = get_session_ptr_no_check (am, f_sess_id.thread_index,
f_sess_id.session_index);
CLIB_PREFETCH (sess, 2 * CLIB_CACHE_LINE_BYTES, STORE);
}
always_inline u8
process_established_session (vlib_main_t * vm, acl_main_t * am,
u32 counter_node_index, int is_input, u64 now,
fa_full_session_id_t f_sess_id,
u32 * sw_if_index, fa_5tuple_t * fa_5tuple,
u32 pkt_len, int node_trace_on,
u32 * trace_bitmap)
{
u8 action = 0;
fa_session_t *sess = get_session_ptr_no_check (am, f_sess_id.thread_index,
f_sess_id.session_index);
int old_timeout_type = fa_session_get_timeout_type (am, sess);
action =
acl_fa_track_session (am, is_input, sw_if_index[0], now,
sess, &fa_5tuple[0], pkt_len);
int new_timeout_type = fa_session_get_timeout_type (am, sess);
/* Tracking might have changed the session timeout type, e.g. from transient to established */
if (PREDICT_FALSE (old_timeout_type != new_timeout_type))
{
acl_fa_restart_timer_for_session (am, now, f_sess_id);
vlib_node_increment_counter (vm, counter_node_index,
ACL_FA_ERROR_ACL_RESTART_SESSION_TIMER, 1);
if (node_trace_on)
*trace_bitmap |=
0x00010000 + ((0xff & old_timeout_type) << 8) +
(0xff & new_timeout_type);
}
/*
* I estimate the likelihood to be very low - the VPP needs
* to have >64K interfaces to start with and then on
* exactly 64K indices apart needs to be exactly the same
* 5-tuple... Anyway, since this probability is nonzero -
* print an error and drop the unlucky packet.
* If this shows up in real world, we would need to bump
* the hash key length.
*/
if (PREDICT_FALSE (sess->sw_if_index != sw_if_index[0]))
{
clib_warning
("BUG: session LSB16(sw_if_index)=%d and 5-tuple=%d collision!",
sess->sw_if_index, sw_if_index[0]);
action = 0;
}
return action;
}
#define ACL_PLUGIN_VECTOR_SIZE 4
#define ACL_PLUGIN_PREFETCH_GAP 3
always_inline void
acl_fa_node_common_prepare_fn (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame, int is_ip6, int is_input,
int is_l2_path, int with_stateful_datapath)
/* , int node_trace_on,
int reclassify_sessions) */
{
u32 n_left, *from;
acl_main_t *am = &acl_main;
uword thread_index = os_get_thread_index ();
acl_fa_per_worker_data_t *pw = &am->per_worker_data[thread_index];
vlib_buffer_t **b;
u32 *sw_if_index;
fa_5tuple_t *fa_5tuple;
u64 *hash;
from = vlib_frame_vector_args (frame);
vlib_get_buffers (vm, from, pw->bufs, frame->n_vectors);
/* set the initial values for the current buffer the next pointers */
b = pw->bufs;
sw_if_index = pw->sw_if_indices;
fa_5tuple = pw->fa_5tuples;
hash = pw->hashes;
/*
* fill the sw_if_index, 5tuple and session hash,
* First in strides of size ACL_PLUGIN_VECTOR_SIZE,
* with buffer prefetch being
* ACL_PLUGIN_PREFETCH_GAP * ACL_PLUGIN_VECTOR_SIZE entries
* in front. Then with a simple single loop.
*/
n_left = frame->n_vectors;
while (n_left >= (ACL_PLUGIN_PREFETCH_GAP + 1) * ACL_PLUGIN_VECTOR_SIZE)
{
const int vec_sz = ACL_PLUGIN_VECTOR_SIZE;
{
int ii;
for (ii = ACL_PLUGIN_PREFETCH_GAP * vec_sz;
ii < (ACL_PLUGIN_PREFETCH_GAP + 1) * vec_sz; ii++)
{
clib_prefetch_load (b[ii]);
CLIB_PREFETCH (b[ii]->data, 2 * CLIB_CACHE_LINE_BYTES, LOAD);
}
}
get_sw_if_index_xN (vec_sz, is_input, b, sw_if_index);
fill_5tuple_xN (vec_sz, am, is_ip6, is_input, is_l2_path, &b[0],
&sw_if_index[0], &fa_5tuple[0]);
if (with_stateful_datapath)
make_session_hash_xN (vec_sz, am, is_ip6, &sw_if_index[0],
&fa_5tuple[0], &hash[0]);
n_left -= vec_sz;
fa_5tuple += vec_sz;
b += vec_sz;
sw_if_index += vec_sz;
hash += vec_sz;
}
while (n_left > 0)
{
const int vec_sz = 1;
get_sw_if_index_xN (vec_sz, is_input, b, sw_if_index);
fill_5tuple_xN (vec_sz, am, is_ip6, is_input, is_l2_path, &b[0],
&sw_if_index[0], &fa_5tuple[0]);
if (with_stateful_datapath)
make_session_hash_xN (vec_sz, am, is_ip6, &sw_if_index[0],
&fa_5tuple[0], &hash[0]);
n_left -= vec_sz;
fa_5tuple += vec_sz;
b += vec_sz;
sw_if_index += vec_sz;
hash += vec_sz;
}
}
always_inline uword
acl_fa_inner_node_fn (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame,
int is_ip6, int is_input, int is_l2_path,
int with_stateful_datapath, int node_trace_on,
int reclassify_sessions)
{
u32 n_left;
u32 pkts_exist_session = 0;
u32 pkts_new_session = 0;
u32 pkts_acl_permit = 0;
u32 trace_bitmap = 0;
acl_main_t *am = &acl_main;
vlib_node_runtime_t *error_node;
vlib_error_t no_error_existing_session;
u64 now = clib_cpu_time_now ();
uword thread_index = os_get_thread_index ();
acl_fa_per_worker_data_t *pw = &am->per_worker_data[thread_index];
u16 *next;
vlib_buffer_t **b;
u32 *sw_if_index;
fa_5tuple_t *fa_5tuple;
u64 *hash;
/* for the delayed counters */
u32 saved_matched_acl_index = 0;
u32 saved_matched_ace_index = 0;
u32 saved_packet_count = 0;
u32 saved_byte_count = 0;
error_node = vlib_node_get_runtime (vm, node->node_index);
no_error_existing_session =
error_node->errors[ACL_FA_ERROR_ACL_EXIST_SESSION];
b = pw->bufs;
next = pw->nexts;
sw_if_index = pw->sw_if_indices;
fa_5tuple = pw->fa_5tuples;
hash = pw->hashes;
/*
* Now the "hard" work of session lookups and ACL lookups for new sessions.
* Due to the complexity, do it for the time being in single loop with
* the pipeline of three prefetches:
* 1) bucket for the session bihash
* 2) data for the session bihash
* 3) worker session record
*/
fa_full_session_id_t f_sess_id_next = {.as_u64 = ~0ULL };
/* find the "next" session so we can kickstart the pipeline */
if (with_stateful_datapath)
acl_fa_find_session_with_hash (am, is_ip6, sw_if_index[0], hash[0],
&fa_5tuple[0], &f_sess_id_next.as_u64);
n_left = frame->n_vectors;
while (n_left > 0)
{
u8 action = 0;
u32 lc_index0 = ~0;
int acl_check_needed = 1;
u32 match_acl_in_index = ~0;
u32 match_acl_pos = ~0;
u32 match_rule_index = ~0;
next[0] = 0; /* drop by default */
/* Try to match an existing session first */
if (with_stateful_datapath)
{
fa_full_session_id_t f_sess_id = f_sess_id_next;
switch (n_left)
{
default:
acl_fa_prefetch_session_bucket_for_hash (am, is_ip6, hash[5]);
/* fallthrough */
case 5:
case 4:
acl_fa_prefetch_session_data_for_hash (am, is_ip6, hash[3]);
/* fallthrough */
case 3:
case 2:
acl_fa_find_session_with_hash (am, is_ip6, sw_if_index[1],
hash[1], &fa_5tuple[1],
&f_sess_id_next.as_u64);
if (f_sess_id_next.as_u64 != ~0ULL)
{
prefetch_session_entry (am, f_sess_id_next);
}
/* fallthrough */
case 1:
if (f_sess_id.as_u64 != ~0ULL)
{
if (node_trace_on)
{
trace_bitmap |= 0x80000000;
}
ASSERT (f_sess_id.thread_index < vlib_get_n_threads ());
b[0]->error = no_error_existing_session;
acl_check_needed = 0;
pkts_exist_session += 1;
action =
process_established_session (vm, am, node->node_index,
is_input, now, f_sess_id,
&sw_if_index[0],
&fa_5tuple[0],
b[0]->current_length,
node_trace_on,
&trace_bitmap);
/* expose the session id to the tracer */
if (node_trace_on)
{
match_rule_index = f_sess_id.session_index;
}
if (reclassify_sessions)
{
if (PREDICT_FALSE
(stale_session_deleted
(am, is_input, pw, now, sw_if_index[0],
f_sess_id)))
{
acl_check_needed = 1;
if (node_trace_on)
{
trace_bitmap |= 0x40000000;
}
/*
* If we have just deleted the session, and the next
* buffer is the same 5-tuple, that session prediction
* is wrong, correct it.
*/
if ((f_sess_id_next.as_u64 != ~0ULL)
&& 0 == memcmp (&fa_5tuple[1], &fa_5tuple[0],
sizeof (fa_5tuple[1])))
f_sess_id_next.as_u64 = ~0ULL;
}
}
}
}
if (acl_check_needed)
{
if (is_input)
lc_index0 = am->input_lc_index_by_sw_if_index[sw_if_index[0]];
else
lc_index0 =
am->output_lc_index_by_sw_if_index[sw_if_index[0]];
action = 0; /* deny by default */
int is_match = acl_plugin_match_5tuple_inline (am, lc_index0,
(fa_5tuple_opaque_t *) & fa_5tuple[0], is_ip6,
&action,
&match_acl_pos,
&match_acl_in_index,
&match_rule_index,
&trace_bitmap);
if (PREDICT_FALSE
(is_match && am->interface_acl_counters_enabled))
{
u32 buf_len = vlib_buffer_length_in_chain (vm, b[0]);
vlib_increment_combined_counter (am->combined_acl_counters +
saved_matched_acl_index,
thread_index,
saved_matched_ace_index,
saved_packet_count,
saved_byte_count);
saved_matched_acl_index = match_acl_in_index;
saved_matched_ace_index = match_rule_index;
saved_packet_count = 1;
saved_byte_count = buf_len;
/* prefetch the counter that we are going to increment */
vlib_prefetch_combined_counter (am->combined_acl_counters +
saved_matched_acl_index,
thread_index,
saved_matched_ace_index);
}
b[0]->error = error_node->errors[action];
if (1 == action)
pkts_acl_permit++;
if (2 == action)
{
if (!acl_fa_can_add_session (am, is_input, sw_if_index[0]))
acl_fa_try_recycle_session (am, is_input,
thread_index,
sw_if_index[0], now);
if (acl_fa_can_add_session (am, is_input, sw_if_index[0]))
{
u16 current_policy_epoch =
get_current_policy_epoch (am, is_input,
sw_if_index[0]);
fa_full_session_id_t f_sess_id =
acl_fa_add_session (am, is_input, is_ip6,
sw_if_index[0],
now, &fa_5tuple[0],
current_policy_epoch);
/* perform the accounting for the newly added session */
process_established_session (vm, am,
node->node_index,
is_input, now,
f_sess_id,
&sw_if_index[0],
&fa_5tuple[0],
b[0]->current_length,
node_trace_on,
&trace_bitmap);
pkts_new_session++;
/*
* If the next 5tuple is the same and we just added the session,
* the f_sess_id_next can not be ~0. Correct it.
*/
if ((f_sess_id_next.as_u64 == ~0ULL)
&& 0 == memcmp (&fa_5tuple[1], &fa_5tuple[0],
sizeof (fa_5tuple[1])))
f_sess_id_next = f_sess_id;
}
else
{
action = 0;
b[0]->error =
error_node->errors
[ACL_FA_ERROR_ACL_TOO_MANY_SESSIONS];
}
}
}
{
/* speculatively get the next0 */
vnet_feature_next_u16 (&next[0], b[0]);
/* if the action is not deny - then use that next */
next[0] = action ? next[0] : 0;
}
if (node_trace_on) // PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
{
maybe_trace_buffer (vm, node, b[0], sw_if_index[0], lc_index0,
next[0], match_acl_in_index,
match_rule_index, &fa_5tuple[0], action,
trace_bitmap);
}
next++;
b++;
fa_5tuple++;
sw_if_index++;
hash++;
n_left -= 1;
}
}
/*
* if we were had an acl match then we have a counter to increment.
* else it is all zeroes, so this will be harmless.
*/
vlib_increment_combined_counter (am->combined_acl_counters +
saved_matched_acl_index,
thread_index,
saved_matched_ace_index,
saved_packet_count, saved_byte_count);
vlib_node_increment_counter (vm, node->node_index,
ACL_FA_ERROR_ACL_CHECK, frame->n_vectors);
vlib_node_increment_counter (vm, node->node_index,
ACL_FA_ERROR_ACL_EXIST_SESSION,
pkts_exist_session);
vlib_node_increment_counter (vm, node->node_index,
ACL_FA_ERROR_ACL_NEW_SESSION,
pkts_new_session);
vlib_node_increment_counter (vm, node->node_index,
ACL_FA_ERROR_ACL_PERMIT, pkts_acl_permit);
return frame->n_vectors;
}
always_inline uword
acl_fa_outer_node_fn (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame,
int is_ip6, int is_input, int is_l2_path,
int do_stateful_datapath)
{
acl_main_t *am = &acl_main;
acl_fa_node_common_prepare_fn (vm, node, frame, is_ip6, is_input,
is_l2_path, do_stateful_datapath);
if (am->reclassify_sessions)
{
if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
return acl_fa_inner_node_fn (vm, node, frame, is_ip6, is_input,
is_l2_path, do_stateful_datapath,
1 /* trace */ ,
1 /* reclassify */ );
else
return acl_fa_inner_node_fn (vm, node, frame, is_ip6, is_input,
is_l2_path, do_stateful_datapath, 0,
1 /* reclassify */ );
}
else
{
if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE))
return acl_fa_inner_node_fn (vm, node, frame, is_ip6, is_input,
is_l2_path, do_stateful_datapath,
1 /* trace */ ,
0);
else
return acl_fa_inner_node_fn (vm, node, frame, is_ip6, is_input,
is_l2_path, do_stateful_datapath, 0, 0);
}
}
always_inline uword
acl_fa_node_fn (vlib_main_t * vm,
vlib_node_runtime_t * node, vlib_frame_t * frame, int is_ip6,
int is_input, int is_l2_path)
{
/* select the reclassify/no-reclassify version of the datapath */
acl_main_t *am = &acl_main;
acl_fa_per_worker_data_t *pw = &am->per_worker_data[vm->thread_index];
uword rv;
if (am->fa_sessions_hash_is_initialized)
rv = acl_fa_outer_node_fn (vm, node, frame, is_ip6, is_input,
is_l2_path, 1);
else
rv = acl_fa_outer_node_fn (vm, node, frame, is_ip6, is_input,
is_l2_path, 0);
vlib_buffer_enqueue_to_next (vm, node, vlib_frame_vector_args (frame),
pw->nexts, frame->n_vectors);
return rv;
}
static u8 *
format_fa_5tuple (u8 * s, va_list * args)
{
fa_5tuple_t *p5t = va_arg (*args, fa_5tuple_t *);
void *paddr0;
void *paddr1;
void *format_address_func;
void *ip_af;
void *ip_frag_txt =
p5t->pkt.is_nonfirst_fragment ? " non-initial fragment" : "";
if (p5t->pkt.is_ip6)
{
ip_af = "ip6";
format_address_func = format_ip6_address;
paddr0 = &p5t->ip6_addr[0];
paddr1 = &p5t->ip6_addr[1];
}
else
{
ip_af = "ip4";
format_address_func = format_ip4_address;
paddr0 = &p5t->ip4_addr[0];
paddr1 = &p5t->ip4_addr[1];
}
s =
format (s, "lc_index %d l3 %s%s ", p5t->pkt.lc_index, ip_af, ip_frag_txt);
s =
format (s, "%U -> %U ", format_address_func, paddr0, format_address_func,
paddr1);
s = format (s, "%U ", format_fa_session_l4_key, &p5t->l4);
s = format (s, "tcp flags (%s) %02x rsvd %x",
p5t->pkt.tcp_flags_valid ? "valid" : "invalid",
p5t->pkt.tcp_flags, p5t->pkt.flags_reserved);
return s;
}
#ifndef CLIB_MARCH_VARIANT
u8 *
format_acl_plugin_5tuple (u8 * s, va_list * args)
{
return format_fa_5tuple (s, args);
}
#endif
/* packet trace format function */
static u8 *
format_acl_plugin_trace (u8 * s, 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 *);
acl_fa_trace_t *t = va_arg (*args, acl_fa_trace_t *);
s =
format (s,
"acl-plugin: lc_index: %d, sw_if_index %d, next index %d, action: %d, match: acl %d rule %d trace_bits %08x\n"
" pkt info %016llx %016llx %016llx %016llx %016llx %016llx",
t->lc_index, t->sw_if_index, t->next_index, t->action,
t->match_acl_in_index, t->match_rule_index, t->trace_bitmap,
t->packet_info[0], t->packet_info[1], t->packet_info[2],
t->packet_info[3], t->packet_info[4], t->packet_info[5]);
/* Now also print out the packet_info in a form usable by humans */
s = format (s, "\n %U", format_fa_5tuple, t->packet_info);
return s;
}
/* *INDENT-OFF* */
static char *acl_fa_error_strings[] = {
#define _(sym,string) string,
foreach_acl_fa_error
#undef _
};
VLIB_NODE_FN (acl_in_l2_ip6_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
return acl_fa_node_fn (vm, node, frame, 1, 1, 1);
}
VLIB_NODE_FN (acl_in_l2_ip4_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
return acl_fa_node_fn (vm, node, frame, 0, 1, 1);
}
VLIB_NODE_FN (acl_out_l2_ip6_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
return acl_fa_node_fn (vm, node, frame, 1, 0, 1);
}
VLIB_NODE_FN (acl_out_l2_ip4_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
return acl_fa_node_fn (vm, node, frame, 0, 0, 1);
}
/**** L3 processing path nodes ****/
VLIB_NODE_FN (acl_in_fa_ip6_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
return acl_fa_node_fn (vm, node, frame, 1, 1, 0);
}
VLIB_NODE_FN (acl_in_fa_ip4_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
return acl_fa_node_fn (vm, node, frame, 0, 1, 0);
}
VLIB_NODE_FN (acl_out_fa_ip6_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
return acl_fa_node_fn (vm, node, frame, 1, 0, 0);
}
VLIB_NODE_FN (acl_out_fa_ip4_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * frame)
{
return acl_fa_node_fn (vm, node, frame, 0, 0, 0);
}
VLIB_REGISTER_NODE (acl_in_l2_ip6_node) =
{
.name = "acl-plugin-in-ip6-l2",
.vector_size = sizeof (u32),
.format_trace = format_acl_plugin_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN (acl_fa_error_strings),
.error_strings = acl_fa_error_strings,
.n_next_nodes = ACL_FA_N_NEXT,
.next_nodes =
{
[ACL_FA_ERROR_DROP] = "error-drop",
}
};
VNET_FEATURE_INIT (acl_in_l2_ip6_fa_feature, static) =
{
.arc_name = "l2-input-ip6",
.node_name = "acl-plugin-in-ip6-l2",
.runs_before = VNET_FEATURES ("l2-input-feat-arc-end"),
};
VLIB_REGISTER_NODE (acl_in_l2_ip4_node) =
{
.name = "acl-plugin-in-ip4-l2",
.vector_size = sizeof (u32),
.format_trace = format_acl_plugin_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN (acl_fa_error_strings),
.error_strings = acl_fa_error_strings,
.n_next_nodes = ACL_FA_N_NEXT,
.next_nodes =
{
[ACL_FA_ERROR_DROP] = "error-drop",
}
};
VNET_FEATURE_INIT (acl_in_l2_ip4_fa_feature, static) =
{
.arc_name = "l2-input-ip4",
.node_name = "acl-plugin-in-ip4-l2",
.runs_before = VNET_FEATURES ("l2-input-feat-arc-end"),
};
VLIB_REGISTER_NODE (acl_out_l2_ip6_node) =
{
.name = "acl-plugin-out-ip6-l2",
.vector_size = sizeof (u32),
.format_trace = format_acl_plugin_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN (acl_fa_error_strings),
.error_strings = acl_fa_error_strings,
.n_next_nodes = ACL_FA_N_NEXT,
.next_nodes =
{
[ACL_FA_ERROR_DROP] = "error-drop",
}
};
VNET_FEATURE_INIT (acl_out_l2_ip6_fa_feature, static) =
{
.arc_name = "l2-output-ip6",
.node_name = "acl-plugin-out-ip6-l2",
.runs_before = VNET_FEATURES ("l2-output-feat-arc-end"),
};
VLIB_REGISTER_NODE (acl_out_l2_ip4_node) =
{
.name = "acl-plugin-out-ip4-l2",
.vector_size = sizeof (u32),
.format_trace = format_acl_plugin_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN (acl_fa_error_strings),
.error_strings = acl_fa_error_strings,
.n_next_nodes = ACL_FA_N_NEXT,
.next_nodes =
{
[ACL_FA_ERROR_DROP] = "error-drop",
}
};
VNET_FEATURE_INIT (acl_out_l2_ip4_fa_feature, static) =
{
.arc_name = "l2-output-ip4",
.node_name = "acl-plugin-out-ip4-l2",
.runs_before = VNET_FEATURES ("l2-output-feat-arc-end"),
};
VLIB_REGISTER_NODE (acl_in_fa_ip6_node) =
{
.name = "acl-plugin-in-ip6-fa",
.vector_size = sizeof (u32),
.format_trace = format_acl_plugin_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN (acl_fa_error_strings),
.error_strings = acl_fa_error_strings,
.n_next_nodes = ACL_FA_N_NEXT,
.next_nodes =
{
[ACL_FA_ERROR_DROP] = "error-drop",
}
};
VNET_FEATURE_INIT (acl_in_ip6_fa_feature, static) =
{
.arc_name = "ip6-unicast",
.node_name = "acl-plugin-in-ip6-fa",
.runs_before = VNET_FEATURES ("ip6-flow-classify"),
};
VLIB_REGISTER_NODE (acl_in_fa_ip4_node) =
{
.name = "acl-plugin-in-ip4-fa",
.vector_size = sizeof (u32),
.format_trace = format_acl_plugin_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN (acl_fa_error_strings),
.error_strings = acl_fa_error_strings,
.n_next_nodes = ACL_FA_N_NEXT,
.next_nodes =
{
[ACL_FA_ERROR_DROP] = "error-drop",
}
};
VNET_FEATURE_INIT (acl_in_ip4_fa_feature, static) =
{
.arc_name = "ip4-unicast",
.node_name = "acl-plugin-in-ip4-fa",
.runs_before = VNET_FEATURES ("ip4-flow-classify"),
};
VLIB_REGISTER_NODE (acl_out_fa_ip6_node) =
{
.name = "acl-plugin-out-ip6-fa",
.vector_size = sizeof (u32),
.format_trace = format_acl_plugin_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN (acl_fa_error_strings),
.error_strings = acl_fa_error_strings,
.n_next_nodes = ACL_FA_N_NEXT,
.next_nodes =
{
[ACL_FA_ERROR_DROP] = "error-drop",
}
};
VNET_FEATURE_INIT (acl_out_ip6_fa_feature, static) = {
.arc_name = "ip6-output",
.node_name = "acl-plugin-out-ip6-fa",
.runs_before = VNET_FEATURES ("ip6-dvr-reinject", "interface-output"),
};
VLIB_REGISTER_NODE (acl_out_fa_ip4_node) =
{
.name = "acl-plugin-out-ip4-fa",
.vector_size = sizeof (u32),
.format_trace = format_acl_plugin_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
.n_errors = ARRAY_LEN (acl_fa_error_strings),
.error_strings = acl_fa_error_strings,
.n_next_nodes = ACL_FA_N_NEXT,
/* edit / add dispositions here */
.next_nodes =
{
[ACL_FA_ERROR_DROP] = "error-drop",
}
};
VNET_FEATURE_INIT (acl_out_ip4_fa_feature, static) = {
.arc_name = "ip4-output",
.node_name = "acl-plugin-out-ip4-fa",
.runs_before = VNET_FEATURES ("ip4-dvr-reinject", "interface-output"),
};
/* *INDENT-ON* */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/