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c0e9441e79b63ea09d5b282910d104960d45026d
vpp/src/plugins/acl/acl.c
Neale Ranns bf883bb086 acl: ACL creation CLI parsing fix 
Type: fix

Signed-off-by: Neale Ranns <nranns@cisco.com>
Change-Id: I026f0d8385b538e543bae0c1f7e56e49e4713ba1
2020-04-24 17:22:41 +00:00

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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 <stddef.h>
#include <vnet/vnet.h>
#include <vnet/plugin/plugin.h>
#include <acl/acl.h>
#include <vnet/l2/l2_classify.h>
#include <vnet/l2/l2_in_out_feat_arc.h>
#include <vnet/classify/in_out_acl.h>
#include <vpp/app/version.h>
#include <vnet/ethernet/ethernet_types_api.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
/* define message IDs */
#include <acl/acl.api_enum.h>
#include <acl/acl.api_types.h>
#define vl_print(handle, ...) vlib_cli_output (handle, __VA_ARGS__)
#include "manual_fns.h"
#include "fa_node.h"
#include "public_inlines.h"
acl_main_t acl_main;
#define REPLY_MSG_ID_BASE am->msg_id_base
#include <vlibapi/api_helper_macros.h>
/*
* The code for the bihash, used by the session management.
*/
#include <vppinfra/bihash_40_8.h>
#include <vppinfra/bihash_template.h>
#include <vppinfra/bihash_template.c>
/* *INDENT-OFF* */
VLIB_PLUGIN_REGISTER () = {
.version = VPP_BUILD_VER,
.description = "Access Control Lists (ACL)",
};
/* *INDENT-ON* */
/* methods exported from ACL-as-a-service */
static acl_plugin_methods_t acl_plugin;
/* Format vec16. */
u8 *
format_vec16 (u8 * s, va_list * va)
{
u16 *v = va_arg (*va, u16 *);
char *fmt = va_arg (*va, char *);
uword i;
for (i = 0; i < vec_len (v); i++)
{
if (i > 0)
s = format (s, ", ");
s = format (s, fmt, v[i]);
}
return s;
}
static void *
acl_set_heap (acl_main_t * am)
{
if (0 == am->acl_mheap)
{
if (0 == am->acl_mheap_size)
{
vlib_thread_main_t *tm = vlib_get_thread_main ();
u64 per_worker_slack = 1000000LL;
u64 per_worker_size =
per_worker_slack +
((u64) am->fa_conn_table_max_entries) * sizeof (fa_session_t);
u64 per_worker_size_with_slack = per_worker_slack + per_worker_size;
u64 main_slack = 2000000LL;
u64 bihash_size = (u64) am->fa_conn_table_hash_memory_size;
am->acl_mheap_size =
per_worker_size_with_slack * tm->n_vlib_mains + bihash_size +
main_slack;
}
u64 max_possible = ((uword) ~ 0);
if (am->acl_mheap_size > max_possible)
{
clib_warning ("ACL heap size requested: %lld, max possible %lld",
am->acl_mheap_size, max_possible);
}
am->acl_mheap = mheap_alloc_with_lock (0 /* use VM */ ,
am->acl_mheap_size,
1 /* locked */ );
if (0 == am->acl_mheap)
{
clib_error
("ACL plugin failed to allocate main heap of %U bytes, abort",
format_memory_size, am->acl_mheap_size);
}
}
void *oldheap = clib_mem_set_heap (am->acl_mheap);
return oldheap;
}
void *
acl_plugin_set_heap ()
{
acl_main_t *am = &acl_main;
return acl_set_heap (am);
}
void
acl_plugin_acl_set_validate_heap (acl_main_t * am, int on)
{
clib_mem_set_heap (acl_set_heap (am));
}
void
acl_plugin_acl_set_trace_heap (acl_main_t * am, int on)
{
clib_mem_set_heap (acl_set_heap (am));
}
static void
vl_api_acl_plugin_get_version_t_handler (vl_api_acl_plugin_get_version_t * mp)
{
acl_main_t *am = &acl_main;
vl_api_acl_plugin_get_version_reply_t *rmp;
int msg_size = sizeof (*rmp);
vl_api_registration_t *reg;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
rmp = vl_msg_api_alloc (msg_size);
clib_memset (rmp, 0, msg_size);
rmp->_vl_msg_id =
ntohs (VL_API_ACL_PLUGIN_GET_VERSION_REPLY + am->msg_id_base);
rmp->context = mp->context;
rmp->major = htonl (ACL_PLUGIN_VERSION_MAJOR);
rmp->minor = htonl (ACL_PLUGIN_VERSION_MINOR);
vl_api_send_msg (reg, (u8 *) rmp);
}
static void
vl_api_acl_plugin_control_ping_t_handler (vl_api_acl_plugin_control_ping_t *
mp)
{
vl_api_acl_plugin_control_ping_reply_t *rmp;
acl_main_t *am = &acl_main;
int rv = 0;
/* *INDENT-OFF* */
REPLY_MACRO2 (VL_API_ACL_PLUGIN_CONTROL_PING_REPLY,
({
rmp->vpe_pid = ntohl (getpid ());
}));
/* *INDENT-ON* */
}
static void
print_clib_warning_and_reset (vlib_main_t * vm, u8 * out0)
{
clib_warning ("%v", out0);
vec_reset_length (out0);
}
static void
print_cli_and_reset (vlib_main_t * vm, u8 * out0)
{
vlib_cli_output (vm, "%v", out0);
vec_reset_length (out0);
}
typedef void (*acl_vector_print_func_t) (vlib_main_t * vm, u8 * out0);
static void
acl_print_acl_x (acl_vector_print_func_t vpr, vlib_main_t * vm,
acl_main_t * am, int acl_index)
{
acl_rule_t *r;
acl_rule_t *acl_rules = am->acls[acl_index].rules;
u8 *out0 = format (0, "acl-index %u count %u tag {%s}\n", acl_index,
vec_len (acl_rules), am->acls[acl_index].tag);
int j;
vpr (vm, out0);
for (j = 0; j < vec_len (acl_rules); j++)
{
r = &acl_rules[j];
out0 = format (out0, " %9d: %s ", j, r->is_ipv6 ? "ipv6" : "ipv4");
out0 = format_acl_action (out0, r->is_permit);
out0 = format (out0, " src %U/%d", format_ip46_address, &r->src,
r->is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
r->src_prefixlen);
out0 =
format (out0, " dst %U/%d", format_ip46_address, &r->dst,
r->is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4, r->dst_prefixlen);
out0 = format (out0, " proto %d", r->proto);
out0 = format (out0, " sport %d", r->src_port_or_type_first);
if (r->src_port_or_type_first != r->src_port_or_type_last)
{
out0 = format (out0, "-%d", r->src_port_or_type_last);
}
out0 = format (out0, " dport %d", r->dst_port_or_code_first);
if (r->dst_port_or_code_first != r->dst_port_or_code_last)
{
out0 = format (out0, "-%d", r->dst_port_or_code_last);
}
if (r->tcp_flags_mask || r->tcp_flags_value)
{
out0 =
format (out0, " tcpflags %d mask %d", r->tcp_flags_value,
r->tcp_flags_mask);
}
out0 = format (out0, "\n");
vpr (vm, out0);
}
}
static void
vl_api_acl_plugin_get_conn_table_max_entries_t_handler
(vl_api_acl_plugin_get_conn_table_max_entries_t * mp)
{
acl_main_t *am = &acl_main;
vl_api_acl_plugin_get_conn_table_max_entries_reply_t *rmp;
int msg_size = sizeof (*rmp);
vl_api_registration_t *rp;
rp = vl_api_client_index_to_registration (mp->client_index);
if (rp == 0)
return;
rmp = vl_msg_api_alloc (msg_size);
memset (rmp, 0, msg_size);
rmp->_vl_msg_id =
ntohs (VL_API_ACL_PLUGIN_GET_CONN_TABLE_MAX_ENTRIES_REPLY +
am->msg_id_base);
rmp->context = mp->context;
rmp->conn_table_max_entries = __bswap_64 (am->fa_conn_table_max_entries);
vl_api_send_msg (rp, (u8 *) rmp);
}
static void
acl_print_acl (vlib_main_t * vm, acl_main_t * am, int acl_index)
{
acl_print_acl_x (print_cli_and_reset, vm, am, acl_index);
}
static void
warning_acl_print_acl (vlib_main_t * vm, acl_main_t * am, int acl_index)
{
acl_print_acl_x (print_clib_warning_and_reset, vm, am, acl_index);
}
static void
increment_policy_epoch (acl_main_t * am, u32 sw_if_index, int is_input)
{
u32 **ppolicy_epoch_by_swi =
is_input ? &am->input_policy_epoch_by_sw_if_index :
&am->output_policy_epoch_by_sw_if_index;
vec_validate (*ppolicy_epoch_by_swi, sw_if_index);
u32 *p_epoch = vec_elt_at_index ((*ppolicy_epoch_by_swi), sw_if_index);
*p_epoch =
((1 + *p_epoch) & FA_POLICY_EPOCH_MASK) +
(is_input * FA_POLICY_EPOCH_IS_INPUT);
}
static void
try_increment_acl_policy_epoch (acl_main_t * am, u32 acl_num, int is_input)
{
u32 ***p_swi_vec_by_acl = is_input ? &am->input_sw_if_index_vec_by_acl
: &am->output_sw_if_index_vec_by_acl;
if (acl_num < vec_len (*p_swi_vec_by_acl))
{
u32 *p_swi;
vec_foreach (p_swi, (*p_swi_vec_by_acl)[acl_num])
{
increment_policy_epoch (am, *p_swi, is_input);
}
}
}
static void
policy_notify_acl_change (acl_main_t * am, u32 acl_num)
{
try_increment_acl_policy_epoch (am, acl_num, 0);
try_increment_acl_policy_epoch (am, acl_num, 1);
}
static void
validate_and_reset_acl_counters (acl_main_t * am, u32 acl_index)
{
int i;
/* counters are set as vectors [acl#] pointing to vectors of [acl rule] */
acl_plugin_counter_lock (am);
int old_len = vec_len (am->combined_acl_counters);
vec_validate (am->combined_acl_counters, acl_index);
for (i = old_len; i < vec_len (am->combined_acl_counters); i++)
{
am->combined_acl_counters[i].name = 0;
/* filled in once only */
am->combined_acl_counters[i].stat_segment_name = (void *)
format (0, "/acl/%d/matches%c", i, 0);
i32 rule_count = vec_len (am->acls[i].rules);
/* Validate one extra so we always have at least one counter for an ACL */
vlib_validate_combined_counter (&am->combined_acl_counters[i],
rule_count);
vlib_clear_combined_counters (&am->combined_acl_counters[i]);
}
/* (re)validate for the actual ACL that is getting added/updated */
i32 rule_count = vec_len (am->acls[acl_index].rules);
/* Validate one extra so we always have at least one counter for an ACL */
vlib_validate_combined_counter (&am->combined_acl_counters[acl_index],
rule_count);
vlib_clear_combined_counters (&am->combined_acl_counters[acl_index]);
acl_plugin_counter_unlock (am);
}
static int
acl_api_invalid_prefix (const vl_api_prefix_t * prefix)
{
ip_prefix_t ip_prefix;
return ip_prefix_decode2 (prefix, &ip_prefix);
}
static int
acl_add_list (u32 count, vl_api_acl_rule_t rules[],
u32 * acl_list_index, u8 * tag)
{
acl_main_t *am = &acl_main;
acl_list_t *a;
acl_rule_t *r;
acl_rule_t *acl_new_rules = 0;
int i;
if (am->trace_acl > 255)
clib_warning ("API dbg: acl_add_list index %d tag %s", *acl_list_index,
tag);
/* check if what they request is consistent */
for (i = 0; i < count; i++)
{
if (acl_api_invalid_prefix (&rules[i].src_prefix))
return VNET_API_ERROR_INVALID_SRC_ADDRESS;
if (acl_api_invalid_prefix (&rules[i].dst_prefix))
return VNET_API_ERROR_INVALID_DST_ADDRESS;
if (ntohs (rules[i].srcport_or_icmptype_first) >
ntohs (rules[i].srcport_or_icmptype_last))
return VNET_API_ERROR_INVALID_VALUE_2;
if (ntohs (rules[i].dstport_or_icmpcode_first) >
ntohs (rules[i].dstport_or_icmpcode_last))
return VNET_API_ERROR_INVALID_VALUE_2;
}
if (*acl_list_index != ~0)
{
/* They supplied some number, let's see if this ACL exists */
if (pool_is_free_index (am->acls, *acl_list_index))
{
/* tried to replace a non-existent ACL, no point doing anything */
clib_warning
("acl-plugin-error: Trying to replace nonexistent ACL %d (tag %s)",
*acl_list_index, tag);
return VNET_API_ERROR_NO_SUCH_ENTRY;
}
}
if (0 == count)
{
clib_warning
("acl-plugin-warning: supplied no rules for ACL %d (tag %s)",
*acl_list_index, tag);
}
void *oldheap = acl_set_heap (am);
/* Create and populate the rules */
if (count > 0)
vec_validate (acl_new_rules, count - 1);
for (i = 0; i < count; i++)
{
r = vec_elt_at_index (acl_new_rules, i);
clib_memset (r, 0, sizeof (*r));
r->is_permit = rules[i].is_permit;
r->is_ipv6 = rules[i].src_prefix.address.af;
ip_address_decode (&rules[i].src_prefix.address, &r->src);
ip_address_decode (&rules[i].dst_prefix.address, &r->dst);
r->src_prefixlen = rules[i].src_prefix.len;
r->dst_prefixlen = rules[i].dst_prefix.len;
r->proto = rules[i].proto;
r->src_port_or_type_first = ntohs (rules[i].srcport_or_icmptype_first);
r->src_port_or_type_last = ntohs (rules[i].srcport_or_icmptype_last);
r->dst_port_or_code_first = ntohs (rules[i].dstport_or_icmpcode_first);
r->dst_port_or_code_last = ntohs (rules[i].dstport_or_icmpcode_last);
r->tcp_flags_value = rules[i].tcp_flags_value;
r->tcp_flags_mask = rules[i].tcp_flags_mask;
}
if (~0 == *acl_list_index)
{
/* Get ACL index */
pool_get_aligned (am->acls, a, CLIB_CACHE_LINE_BYTES);
clib_memset (a, 0, sizeof (*a));
/* Will return the newly allocated ACL index */
*acl_list_index = a - am->acls;
}
else
{
a = am->acls + *acl_list_index;
/* Get rid of the old rules */
if (a->rules)
vec_free (a->rules);
}
a->rules = acl_new_rules;
memcpy (a->tag, tag, sizeof (a->tag));
if (am->trace_acl > 255)
warning_acl_print_acl (am->vlib_main, am, *acl_list_index);
if (am->reclassify_sessions)
{
/* a change in an ACLs if they are applied may mean a new policy epoch */
policy_notify_acl_change (am, *acl_list_index);
}
/* stats segment expects global heap, so restore it temporarily */
clib_mem_set_heap (oldheap);
validate_and_reset_acl_counters (am, *acl_list_index);
oldheap = acl_set_heap (am);
/* notify the lookup contexts about the ACL changes */
acl_plugin_lookup_context_notify_acl_change (*acl_list_index);
clib_mem_set_heap (oldheap);
return 0;
}
static int
acl_is_used_by (u32 acl_index, u32 ** foo_index_vec_by_acl)
{
if (acl_index < vec_len (foo_index_vec_by_acl))
{
if (vec_len (vec_elt (foo_index_vec_by_acl, acl_index)) > 0)
{
/* ACL is applied somewhere. */
return 1;
}
}
return 0;
}
static int
acl_del_list (u32 acl_list_index)
{
acl_main_t *am = &acl_main;
acl_list_t *a;
if (pool_is_free_index (am->acls, acl_list_index))
{
return VNET_API_ERROR_NO_SUCH_ENTRY;
}
if (acl_is_used_by (acl_list_index, am->input_sw_if_index_vec_by_acl))
return VNET_API_ERROR_ACL_IN_USE_INBOUND;
if (acl_is_used_by (acl_list_index, am->output_sw_if_index_vec_by_acl))
return VNET_API_ERROR_ACL_IN_USE_OUTBOUND;
/* lookup contexts cover other cases, not just inbound/outbound, so check that */
if (acl_is_used_by (acl_list_index, am->lc_index_vec_by_acl))
return VNET_API_ERROR_ACL_IN_USE_BY_LOOKUP_CONTEXT;
void *oldheap = acl_set_heap (am);
/* now we can delete the ACL itself */
a = pool_elt_at_index (am->acls, acl_list_index);
if (a->rules)
vec_free (a->rules);
pool_put (am->acls, a);
/* acl_list_index is now free, notify the lookup contexts */
acl_plugin_lookup_context_notify_acl_change (acl_list_index);
clib_mem_set_heap (oldheap);
return 0;
}
static int
count_skip (u8 * p, u32 size)
{
u64 *p64 = (u64 *) p;
/* Be tolerant to null pointer */
if (0 == p)
return 0;
while ((0ULL == *p64) && ((u8 *) p64 - p) < size)
{
p64++;
}
return (p64 - (u64 *) p) / 2;
}
static int
acl_classify_add_del_table_small (vnet_classify_main_t * cm, u8 * mask,
u32 mask_len, u32 next_table_index,
u32 miss_next_index, u32 * table_index,
int is_add)
{
u32 nbuckets = 32;
u32 memory_size = 2 << 22;
u32 skip = count_skip (mask, mask_len);
u32 match = (mask_len / 16) - skip;
u8 *skip_mask_ptr = mask + 16 * skip;
u32 current_data_flag = 0;
int current_data_offset = 0;
if (0 == match)
match = 1;
void *oldheap = clib_mem_set_heap (cm->vlib_main->heap_base);
int ret = vnet_classify_add_del_table (cm, skip_mask_ptr, nbuckets,
memory_size, skip, match,
next_table_index, miss_next_index,
table_index, current_data_flag,
current_data_offset, is_add,
1 /* delete_chain */ );
clib_mem_set_heap (oldheap);
return ret;
}
static int
intf_has_etype_whitelist (acl_main_t * am, u32 sw_if_index, int is_input)
{
u16 **v = is_input
? am->input_etype_whitelist_by_sw_if_index
: am->output_etype_whitelist_by_sw_if_index;
u16 *whitelist = (vec_len (v) > sw_if_index) ? vec_elt (v, sw_if_index) : 0;
return vec_len (whitelist) > 0;
}
static void
acl_clear_sessions (acl_main_t * am, u32 sw_if_index)
{
void *oldheap = clib_mem_set_heap (am->vlib_main->heap_base);
vlib_process_signal_event (am->vlib_main, am->fa_cleaner_node_index,
ACL_FA_CLEANER_DELETE_BY_SW_IF_INDEX,
sw_if_index);
clib_mem_set_heap (oldheap);
}
static int
acl_interface_in_enable_disable (acl_main_t * am, u32 sw_if_index,
int enable_disable)
{
int rv = 0;
/* Utterly wrong? */
if (pool_is_free_index (am->vnet_main->interface_main.sw_interfaces,
sw_if_index))
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
if (clib_bitmap_get (am->in_acl_on_sw_if_index, sw_if_index) ==
enable_disable)
return 0;
acl_fa_enable_disable (sw_if_index, 1, enable_disable);
void *oldheap = clib_mem_set_heap (am->vlib_main->heap_base);
rv = vnet_l2_feature_enable_disable ("l2-input-ip4", "acl-plugin-in-ip4-l2",
sw_if_index, enable_disable, 0, 0);
if (rv)
clib_error ("Could not enable on input");
rv = vnet_l2_feature_enable_disable ("l2-input-ip6", "acl-plugin-in-ip6-l2",
sw_if_index, enable_disable, 0, 0);
if (rv)
clib_error ("Could not enable on input");
if (intf_has_etype_whitelist (am, sw_if_index, 1))
vnet_l2_feature_enable_disable ("l2-input-nonip",
"acl-plugin-in-nonip-l2", sw_if_index,
enable_disable, 0, 0);
clib_mem_set_heap (oldheap);
am->in_acl_on_sw_if_index =
clib_bitmap_set (am->in_acl_on_sw_if_index, sw_if_index, enable_disable);
return rv;
}
static int
acl_interface_out_enable_disable (acl_main_t * am, u32 sw_if_index,
int enable_disable)
{
int rv = 0;
/* Utterly wrong? */
if (pool_is_free_index (am->vnet_main->interface_main.sw_interfaces,
sw_if_index))
return VNET_API_ERROR_INVALID_SW_IF_INDEX;
if (clib_bitmap_get (am->out_acl_on_sw_if_index, sw_if_index) ==
enable_disable)
return 0;
acl_fa_enable_disable (sw_if_index, 0, enable_disable);
void *oldheap = clib_mem_set_heap (am->vlib_main->heap_base);
rv =
vnet_l2_feature_enable_disable ("l2-output-ip4", "acl-plugin-out-ip4-l2",
sw_if_index, enable_disable, 0, 0);
if (rv)
clib_error ("Could not enable on output");
rv =
vnet_l2_feature_enable_disable ("l2-output-ip6", "acl-plugin-out-ip6-l2",
sw_if_index, enable_disable, 0, 0);
if (rv)
clib_error ("Could not enable on output");
if (intf_has_etype_whitelist (am, sw_if_index, 0))
vnet_l2_feature_enable_disable ("l2-output-nonip",
"acl-plugin-out-nonip-l2", sw_if_index,
enable_disable, 0, 0);
clib_mem_set_heap (oldheap);
am->out_acl_on_sw_if_index =
clib_bitmap_set (am->out_acl_on_sw_if_index, sw_if_index, enable_disable);
return rv;
}
static int
acl_stats_intf_counters_enable_disable (acl_main_t * am, int enable_disable)
{
int rv = 0;
am->interface_acl_counters_enabled = enable_disable;
return rv;
}
static int
acl_interface_inout_enable_disable (acl_main_t * am, u32 sw_if_index,
int is_input, int enable_disable)
{
if (is_input)
return acl_interface_in_enable_disable (am, sw_if_index, enable_disable);
else
return acl_interface_out_enable_disable (am, sw_if_index, enable_disable);
}
static int
acl_is_not_defined (acl_main_t * am, u32 acl_list_index)
{
return (pool_is_free_index (am->acls, acl_list_index));
}
static int
acl_interface_set_inout_acl_list (acl_main_t * am, u32 sw_if_index,
u8 is_input, u32 * vec_acl_list_index,
int *may_clear_sessions)
{
u32 *pacln;
uword *seen_acl_bitmap = 0;
uword *old_seen_acl_bitmap = 0;
uword *change_acl_bitmap = 0;
int acln;
int rv = 0;
if (am->trace_acl > 255)
clib_warning
("API dbg: acl_interface_set_inout_acl_list: sw_if_index %d is_input %d acl_vec: [%U]",
sw_if_index, is_input, format_vec32, vec_acl_list_index, "%d");
vec_foreach (pacln, vec_acl_list_index)
{
if (acl_is_not_defined (am, *pacln))
{
/* ACL is not defined. Can not apply */
clib_warning ("ERROR: ACL %d not defined", *pacln);
rv = VNET_API_ERROR_NO_SUCH_ENTRY;
goto done;
}
if (clib_bitmap_get (seen_acl_bitmap, *pacln))
{
/* ACL being applied twice within the list. error. */
clib_warning ("ERROR: ACL %d being applied twice", *pacln);
rv = VNET_API_ERROR_ENTRY_ALREADY_EXISTS;
goto done;
}
seen_acl_bitmap = clib_bitmap_set (seen_acl_bitmap, *pacln, 1);
}
u32 **pinout_lc_index_by_sw_if_index =
is_input ? &am->
input_lc_index_by_sw_if_index : &am->output_lc_index_by_sw_if_index;
u32 ***pinout_acl_vec_by_sw_if_index =
is_input ? &am->
input_acl_vec_by_sw_if_index : &am->output_acl_vec_by_sw_if_index;
u32 ***pinout_sw_if_index_vec_by_acl =
is_input ? &am->
input_sw_if_index_vec_by_acl : &am->output_sw_if_index_vec_by_acl;
vec_validate ((*pinout_acl_vec_by_sw_if_index), sw_if_index);
clib_bitmap_validate (old_seen_acl_bitmap, 1);
vec_foreach (pacln, (*pinout_acl_vec_by_sw_if_index)[sw_if_index])
{
old_seen_acl_bitmap = clib_bitmap_set (old_seen_acl_bitmap, *pacln, 1);
}
change_acl_bitmap =
clib_bitmap_dup_xor (old_seen_acl_bitmap, seen_acl_bitmap);
if (am->trace_acl > 255)
clib_warning ("bitmaps: old seen %U new seen %U changed %U",
format_bitmap_hex, old_seen_acl_bitmap, format_bitmap_hex,
seen_acl_bitmap, format_bitmap_hex, change_acl_bitmap);
/* *INDENT-OFF* */
clib_bitmap_foreach(acln, change_acl_bitmap, ({
if (clib_bitmap_get(old_seen_acl_bitmap, acln)) {
/* ACL is being removed. */
if (acln < vec_len((*pinout_sw_if_index_vec_by_acl))) {
int index = vec_search((*pinout_sw_if_index_vec_by_acl)[acln], sw_if_index);
vec_del1((*pinout_sw_if_index_vec_by_acl)[acln], index);
}
} else {
/* ACL is being added. */
vec_validate((*pinout_sw_if_index_vec_by_acl), acln);
vec_add1((*pinout_sw_if_index_vec_by_acl)[acln], sw_if_index);
}
}));
/* *INDENT-ON* */
vec_free ((*pinout_acl_vec_by_sw_if_index)[sw_if_index]);
(*pinout_acl_vec_by_sw_if_index)[sw_if_index] =
vec_dup (vec_acl_list_index);
if (am->reclassify_sessions)
{
/* re-applying ACLs means a new policy epoch */
increment_policy_epoch (am, sw_if_index, is_input);
}
else
{
/* if no commonalities between the ACL# - then we should definitely clear the sessions */
if (may_clear_sessions && *may_clear_sessions
&& !clib_bitmap_is_zero (change_acl_bitmap))
{
acl_clear_sessions (am, sw_if_index);
*may_clear_sessions = 0;
}
}
/*
* prepare or delete the lookup context if necessary, and if context exists, set ACL list
*/
vec_validate_init_empty ((*pinout_lc_index_by_sw_if_index), sw_if_index,
~0);
if (vec_len (vec_acl_list_index) > 0)
{
u32 lc_index = (*pinout_lc_index_by_sw_if_index)[sw_if_index];
if (~0 == lc_index)
{
lc_index =
acl_plugin.get_lookup_context_index (am->interface_acl_user_id,
sw_if_index, is_input);
(*pinout_lc_index_by_sw_if_index)[sw_if_index] = lc_index;
}
acl_plugin.set_acl_vec_for_context (lc_index, vec_acl_list_index);
}
else
{
if (~0 != (*pinout_lc_index_by_sw_if_index)[sw_if_index])
{
acl_plugin.put_lookup_context_index ((*pinout_lc_index_by_sw_if_index)[sw_if_index]);
(*pinout_lc_index_by_sw_if_index)[sw_if_index] = ~0;
}
}
/* ensure ACL processing is enabled/disabled as needed */
acl_interface_inout_enable_disable (am, sw_if_index, is_input,
vec_len (vec_acl_list_index) > 0);
done:
clib_bitmap_free (change_acl_bitmap);
clib_bitmap_free (seen_acl_bitmap);
clib_bitmap_free (old_seen_acl_bitmap);
return rv;
}
static void
acl_interface_reset_inout_acls (u32 sw_if_index, u8 is_input,
int *may_clear_sessions)
{
acl_main_t *am = &acl_main;
void *oldheap = acl_set_heap (am);
acl_interface_set_inout_acl_list (am, sw_if_index, is_input, 0,
may_clear_sessions);
clib_mem_set_heap (oldheap);
}
static int
acl_interface_add_del_inout_acl (u32 sw_if_index, u8 is_add, u8 is_input,
u32 acl_list_index)
{
acl_main_t *am = &acl_main;
u32 *acl_vec = 0;
int may_clear_sessions = 1;
int error_already_applied = is_input ? VNET_API_ERROR_ACL_IN_USE_INBOUND
: VNET_API_ERROR_ACL_IN_USE_OUTBOUND;
u32 ***pinout_acl_vec_by_sw_if_index =
is_input ? &am->
input_acl_vec_by_sw_if_index : &am->output_acl_vec_by_sw_if_index;
int rv = 0;
void *oldheap = acl_set_heap (am);
if (is_add)
{
vec_validate ((*pinout_acl_vec_by_sw_if_index), sw_if_index);
u32 index = vec_search ((*pinout_acl_vec_by_sw_if_index)[sw_if_index],
acl_list_index);
if (~0 != index)
{
rv = error_already_applied;
goto done;
}
acl_vec = vec_dup ((*pinout_acl_vec_by_sw_if_index)[sw_if_index]);
vec_add1 (acl_vec, acl_list_index);
}
else
{
if (sw_if_index >= vec_len (*pinout_acl_vec_by_sw_if_index))
{
rv = VNET_API_ERROR_NO_SUCH_ENTRY;
goto done;
}
u32 index = vec_search ((*pinout_acl_vec_by_sw_if_index)[sw_if_index],
acl_list_index);
if (~0 == index)
{
rv = VNET_API_ERROR_NO_SUCH_ENTRY;
goto done;
}
acl_vec = vec_dup ((*pinout_acl_vec_by_sw_if_index)[sw_if_index]);
vec_del1 (acl_vec, index);
}
rv = acl_interface_set_inout_acl_list (am, sw_if_index, is_input, acl_vec,
&may_clear_sessions);
done:
vec_free (acl_vec);
clib_mem_set_heap (oldheap);
return rv;
}
static int
acl_set_etype_whitelists (acl_main_t * am, u32 sw_if_index, u16 * vec_in,
u16 * vec_out)
{
vec_validate (am->input_etype_whitelist_by_sw_if_index, sw_if_index);
vec_validate (am->output_etype_whitelist_by_sw_if_index, sw_if_index);
vec_free (am->input_etype_whitelist_by_sw_if_index[sw_if_index]);
vec_free (am->output_etype_whitelist_by_sw_if_index[sw_if_index]);
am->input_etype_whitelist_by_sw_if_index[sw_if_index] = vec_in;
am->output_etype_whitelist_by_sw_if_index[sw_if_index] = vec_out;
/*
* if there are already inbound/outbound ACLs applied, toggle the
* enable/disable - this will recreate the necessary tables.
*/
if (vec_len (am->input_acl_vec_by_sw_if_index) > sw_if_index)
{
if (vec_len (am->input_acl_vec_by_sw_if_index[sw_if_index]) > 0)
{
acl_interface_in_enable_disable (am, sw_if_index, 0);
acl_interface_in_enable_disable (am, sw_if_index, 1);
}
}
if (vec_len (am->output_acl_vec_by_sw_if_index) > sw_if_index)
{
if (vec_len (am->output_acl_vec_by_sw_if_index[sw_if_index]) > 0)
{
acl_interface_out_enable_disable (am, sw_if_index, 0);
acl_interface_out_enable_disable (am, sw_if_index, 1);
}
}
return 0;
}
typedef struct
{
u8 is_ipv6;
u8 has_egress;
u8 mac_mask[6];
u8 prefix_len;
u32 count;
u32 table_index;
u32 arp_table_index;
u32 dot1q_table_index;
u32 dot1ad_table_index;
u32 arp_dot1q_table_index;
u32 arp_dot1ad_table_index;
/* egress tables */
u32 out_table_index;
u32 out_arp_table_index;
u32 out_dot1q_table_index;
u32 out_dot1ad_table_index;
u32 out_arp_dot1q_table_index;
u32 out_arp_dot1ad_table_index;
} macip_match_type_t;
static u32
macip_find_match_type (macip_match_type_t * mv, u8 * mac_mask, u8 prefix_len,
u8 is_ipv6)
{
u32 i;
if (mv)
{
for (i = 0; i < vec_len (mv); i++)
{
if ((mv[i].prefix_len == prefix_len) && (mv[i].is_ipv6 == is_ipv6)
&& (0 == memcmp (mv[i].mac_mask, mac_mask, 6)))
{
return i;
}
}
}
return ~0;
}
/* Get metric used to sort match types.
The more specific and the more often seen - the bigger the metric */
static int
match_type_metric (macip_match_type_t * m)
{
unsigned int mac_bits_set = 0;
unsigned int mac_byte;
int i;
for (i = 0; i < 6; i++)
{
mac_byte = m->mac_mask[i];
for (; mac_byte; mac_byte >>= 1)
mac_bits_set += mac_byte & 1;
}
/*
* Attempt to place the more specific and the more used rules on top.
* There are obvious caveat corner cases to this, but they do not
* seem to be sensible in real world (e.g. specific IPv4 with wildcard MAC
* going with a wildcard IPv4 with a specific MAC).
*/
return m->prefix_len + mac_bits_set + m->is_ipv6 + 10 * m->count;
}
static int
match_type_compare (macip_match_type_t * m1, macip_match_type_t * m2)
{
/* Ascending sort based on the metric values */
return match_type_metric (m1) - match_type_metric (m2);
}
/* Get the offset of L3 source within ethernet packet */
static int
get_l3_src_offset (int is6)
{
if (is6)
return (sizeof (ethernet_header_t) +
offsetof (ip6_header_t, src_address));
else
return (sizeof (ethernet_header_t) +
offsetof (ip4_header_t, src_address));
}
static int
get_l3_dst_offset (int is6)
{
if (is6)
return (sizeof (ethernet_header_t) +
offsetof (ip6_header_t, dst_address));
else
return (sizeof (ethernet_header_t) +
offsetof (ip4_header_t, dst_address));
}
/*
* return if the is_permit value also requires to create the egress tables
* For backwards compatibility, we keep the is_permit = 1 to only
* create the ingress tables, and the new value of 3 will also
* create the egress tables based on destination.
*/
static int
macip_permit_also_egress (u8 is_permit)
{
return (is_permit == 3);
}
static int
macip_create_classify_tables (acl_main_t * am, u32 macip_acl_index)
{
macip_match_type_t *mvec = NULL;
macip_match_type_t *mt;
macip_acl_list_t *a = pool_elt_at_index (am->macip_acls, macip_acl_index);
int i;
u32 match_type_index;
u32 last_table;
u32 out_last_table;
u8 mask[5 * 16];
vnet_classify_main_t *cm = &vnet_classify_main;
/* Count the number of different types of rules */
for (i = 0; i < a->count; i++)
{
if (~0 ==
(match_type_index =
macip_find_match_type (mvec, a->rules[i].src_mac_mask,
a->rules[i].src_prefixlen,
a->rules[i].is_ipv6)))
{
match_type_index = vec_len (mvec);
vec_validate (mvec, match_type_index);
memcpy (mvec[match_type_index].mac_mask,
a->rules[i].src_mac_mask, 6);
mvec[match_type_index].prefix_len = a->rules[i].src_prefixlen;
mvec[match_type_index].is_ipv6 = a->rules[i].is_ipv6;
mvec[match_type_index].has_egress = 0;
mvec[match_type_index].table_index = ~0;
mvec[match_type_index].arp_table_index = ~0;
mvec[match_type_index].dot1q_table_index = ~0;
mvec[match_type_index].dot1ad_table_index = ~0;
mvec[match_type_index].arp_dot1q_table_index = ~0;
mvec[match_type_index].arp_dot1ad_table_index = ~0;
mvec[match_type_index].out_table_index = ~0;
mvec[match_type_index].out_arp_table_index = ~0;
mvec[match_type_index].out_dot1q_table_index = ~0;
mvec[match_type_index].out_dot1ad_table_index = ~0;
mvec[match_type_index].out_arp_dot1q_table_index = ~0;
mvec[match_type_index].out_arp_dot1ad_table_index = ~0;
}
mvec[match_type_index].count++;
mvec[match_type_index].has_egress |=
macip_permit_also_egress (a->rules[i].is_permit);
}
/* Put the most frequently used tables last in the list so we can create classifier tables in reverse order */
vec_sort_with_function (mvec, match_type_compare);
/* Create the classifier tables */
last_table = ~0;
out_last_table = ~0;
/* First add ARP tables */
vec_foreach (mt, mvec)
{
int mask_len;
int is6 = mt->is_ipv6;
int tags;
u32 *last_tag_table;
u32 *out_last_tag_table;
u32 l3_offset;
if (!is6)
{
/*
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Destination Address |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
| Source Address |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| EtherType | Hardware Type |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Protocol Type | Hw addr len | Proto addr len|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Opcode | |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +
| Sender Hardware Address |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Sender Protocol Address |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Target Hardware Address |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| | TargetProtocolAddress |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
for (tags = 2; tags >= 0; tags--)
{
clib_memset (mask, 0, sizeof (mask));
/* source MAC address */
memcpy (&mask[6], mt->mac_mask, 6);
switch (tags)
{
case 0:
default:
clib_memset (&mask[12], 0xff, 2); /* ethernet protocol */
l3_offset = 14;
last_tag_table = &mt->arp_table_index;
break;
case 1:
clib_memset (&mask[12], 0xff, 2); /* VLAN tag1 */
clib_memset (&mask[16], 0xff, 2); /* ethernet protocol */
l3_offset = 18;
last_tag_table = &mt->arp_dot1q_table_index;
break;
case 2:
clib_memset (&mask[12], 0xff, 2); /* VLAN tag1 */
clib_memset (&mask[16], 0xff, 2); /* VLAN tag2 */
clib_memset (&mask[20], 0xff, 2); /* ethernet protocol */
l3_offset = 22;
last_tag_table = &mt->arp_dot1ad_table_index;
break;
}
/* sender hardware address within ARP */
memcpy (&mask[l3_offset + 8], mt->mac_mask, 6);
/* sender protocol address within ARP */
for (i = 0; i < (mt->prefix_len / 8); i++)
mask[l3_offset + 14 + i] = 0xff;
if (mt->prefix_len % 8)
mask[l3_offset + 14 + (mt->prefix_len / 8)] =
0xff - ((1 << (8 - mt->prefix_len % 8)) - 1);
mask_len = ((l3_offset + 14 + ((mt->prefix_len + 7) / 8) +
(sizeof (u32x4) -
1)) / sizeof (u32x4)) * sizeof (u32x4);
acl_classify_add_del_table_small (cm, mask, mask_len, last_table,
(~0 == last_table) ? 0 : ~0,
last_tag_table, 1);
last_table = *last_tag_table;
if (mt->has_egress)
{
/* egress ARP table */
clib_memset (mask, 0, sizeof (mask));
switch (tags)
{
case 0:
default:
clib_memset (&mask[12], 0xff, 2); /* ethernet protocol */
l3_offset = 14;
out_last_tag_table = &mt->out_arp_table_index;
break;
case 1:
clib_memset (&mask[12], 0xff, 2); /* VLAN tag1 */
clib_memset (&mask[16], 0xff, 2); /* ethernet protocol */
l3_offset = 18;
out_last_tag_table = &mt->out_arp_dot1q_table_index;
break;
case 2:
clib_memset (&mask[12], 0xff, 2); /* VLAN tag1 */
clib_memset (&mask[16], 0xff, 2); /* VLAN tag2 */
clib_memset (&mask[20], 0xff, 2); /* ethernet protocol */
l3_offset = 22;
out_last_tag_table = &mt->out_arp_dot1ad_table_index;
break;
}
/* AYXX: FIXME here - can we tighten the ARP-related table more ? */
/* mask captures just the destination and the ethertype */
mask_len = ((l3_offset +
(sizeof (u32x4) -
1)) / sizeof (u32x4)) * sizeof (u32x4);
acl_classify_add_del_table_small (cm, mask, mask_len,
out_last_table,
(~0 ==
out_last_table) ? 0 : ~0,
out_last_tag_table, 1);
out_last_table = *out_last_tag_table;
}
}
}
}
/* Now add IP[46] tables */
vec_foreach (mt, mvec)
{
int mask_len;
int is6 = mt->is_ipv6;
int l3_src_offs;
int l3_dst_offs;
int tags;
u32 *last_tag_table;
u32 *out_last_tag_table;
/*
* create chained tables for VLAN (no-tags, dot1q and dot1ad) packets
*/
for (tags = 2; tags >= 0; tags--)
{
clib_memset (mask, 0, sizeof (mask));
memcpy (&mask[6], mt->mac_mask, 6);
l3_src_offs = tags * 4 + get_l3_src_offset (is6);
switch (tags)
{
case 0:
default:
clib_memset (&mask[12], 0xff, 2); /* ethernet protocol */
last_tag_table = &mt->table_index;
break;
case 1:
clib_memset (&mask[12], 0xff, 2); /* VLAN tag1 */
clib_memset (&mask[16], 0xff, 2); /* ethernet protocol */
last_tag_table = &mt->dot1q_table_index;
break;
case 2:
clib_memset (&mask[12], 0xff, 2); /* VLAN tag1 */
clib_memset (&mask[16], 0xff, 2); /* VLAN tag2 */
clib_memset (&mask[20], 0xff, 2); /* ethernet protocol */
last_tag_table = &mt->dot1ad_table_index;
break;
}
for (i = 0; i < (mt->prefix_len / 8); i++)
{
mask[l3_src_offs + i] = 0xff;
}
if (mt->prefix_len % 8)
{
mask[l3_src_offs + (mt->prefix_len / 8)] =
0xff - ((1 << (8 - mt->prefix_len % 8)) - 1);
}
/*
* Round-up the number of bytes needed to store the prefix,
* and round up the number of vectors too
*/
mask_len = ((l3_src_offs + ((mt->prefix_len + 7) / 8) +
(sizeof (u32x4) - 1)) / sizeof (u32x4)) * sizeof (u32x4);
acl_classify_add_del_table_small (cm, mask, mask_len, last_table,
(~0 == last_table) ? 0 : ~0,
last_tag_table, 1);
last_table = *last_tag_table;
}
if (mt->has_egress)
{
for (tags = 2; tags >= 0; tags--)
{
clib_memset (mask, 0, sizeof (mask));
/* MAC destination */
memcpy (&mask[0], mt->mac_mask, 6);
l3_dst_offs = tags * 4 + get_l3_dst_offset (is6);
switch (tags)
{
case 0:
default:
clib_memset (&mask[12], 0xff, 2); /* ethernet protocol */
out_last_tag_table = &mt->out_table_index;
break;
case 1:
clib_memset (&mask[12], 0xff, 2); /* VLAN tag1 */
clib_memset (&mask[16], 0xff, 2); /* ethernet protocol */
out_last_tag_table = &mt->out_dot1q_table_index;
break;
case 2:
clib_memset (&mask[12], 0xff, 2); /* VLAN tag1 */
clib_memset (&mask[16], 0xff, 2); /* VLAN tag2 */
clib_memset (&mask[20], 0xff, 2); /* ethernet protocol */
out_last_tag_table = &mt->out_dot1ad_table_index;
break;
}
for (i = 0; i < (mt->prefix_len / 8); i++)
{
mask[l3_dst_offs + i] = 0xff;
}
if (mt->prefix_len % 8)
{
mask[l3_dst_offs + (mt->prefix_len / 8)] =
0xff - ((1 << (8 - mt->prefix_len % 8)) - 1);
}
/*
* Round-up the number of bytes needed to store the prefix,
* and round up the number of vectors too
*/
mask_len = ((l3_dst_offs + ((mt->prefix_len + 7) / 8) +
(sizeof (u32x4) -
1)) / sizeof (u32x4)) * sizeof (u32x4);
acl_classify_add_del_table_small (cm, mask, mask_len,
out_last_table,
(~0 == out_last_table) ? 0 : ~0,
out_last_tag_table, 1);
out_last_table = *out_last_tag_table;
}
}
}
a->ip4_table_index = last_table;
a->ip6_table_index = last_table;
a->l2_table_index = last_table;
a->out_ip4_table_index = out_last_table;
a->out_ip6_table_index = out_last_table;
a->out_l2_table_index = out_last_table;
/* Populate the classifier tables with rules from the MACIP ACL */
for (i = 0; i < a->count; i++)
{
u32 action = 0;
u32 metadata = 0;
int is6 = a->rules[i].is_ipv6;
int l3_src_offs;
int l3_dst_offs;
u32 tag_table;
int tags, eth;
match_type_index =
macip_find_match_type (mvec, a->rules[i].src_mac_mask,
a->rules[i].src_prefixlen,
a->rules[i].is_ipv6);
ASSERT (match_type_index != ~0);
for (tags = 2; tags >= 0; tags--)
{
clib_memset (mask, 0, sizeof (mask));
l3_src_offs = tags * 4 + get_l3_src_offset (is6);
memcpy (&mask[6], a->rules[i].src_mac, 6);
switch (tags)
{
case 0:
default:
tag_table = mvec[match_type_index].table_index;
eth = 12;
break;
case 1:
tag_table = mvec[match_type_index].dot1q_table_index;
mask[12] = 0x81;
mask[13] = 0x00;
eth = 16;
break;
case 2:
tag_table = mvec[match_type_index].dot1ad_table_index;
mask[12] = 0x88;
mask[13] = 0xa8;
mask[16] = 0x81;
mask[17] = 0x00;
eth = 20;
break;
}
if (is6)
{
memcpy (&mask[l3_src_offs], &a->rules[i].src_ip_addr.ip6, 16);
mask[eth] = 0x86;
mask[eth + 1] = 0xdd;
}
else
{
memcpy (&mask[l3_src_offs], &a->rules[i].src_ip_addr.ip4, 4);
mask[eth] = 0x08;
mask[eth + 1] = 0x00;
}
/* add session to table mvec[match_type_index].table_index; */
vnet_classify_add_del_session (cm, tag_table,
mask, a->rules[i].is_permit ? ~0 : 0,
i, 0, action, metadata, 1);
clib_memset (&mask[12], 0, sizeof (mask) - 12);
}
/* add ARP table entry too */
if (!is6 && (mvec[match_type_index].arp_table_index != ~0))
{
clib_memset (mask, 0, sizeof (mask));
memcpy (&mask[6], a->rules[i].src_mac, 6);
for (tags = 2; tags >= 0; tags--)
{
switch (tags)
{
case 0:
default:
tag_table = mvec[match_type_index].arp_table_index;
mask[12] = 0x08;
mask[13] = 0x06;
l3_src_offs = 14;
break;
case 1:
tag_table = mvec[match_type_index].arp_dot1q_table_index;
mask[12] = 0x81;
mask[13] = 0x00;
mask[16] = 0x08;
mask[17] = 0x06;
l3_src_offs = 18;
break;
case 2:
tag_table = mvec[match_type_index].arp_dot1ad_table_index;
mask[12] = 0x88;
mask[13] = 0xa8;
mask[16] = 0x81;
mask[17] = 0x00;
mask[20] = 0x08;
mask[21] = 0x06;
l3_src_offs = 22;
break;
}
memcpy (&mask[l3_src_offs + 8], a->rules[i].src_mac, 6);
memcpy (&mask[l3_src_offs + 14], &a->rules[i].src_ip_addr.ip4,
4);
vnet_classify_add_del_session (cm, tag_table, mask,
a->rules[i].is_permit ? ~0 : 0,
i, 0, action, metadata, 1);
}
}
if (macip_permit_also_egress (a->rules[i].is_permit))
{
/* Add the egress entry with destination set */
for (tags = 2; tags >= 0; tags--)
{
clib_memset (mask, 0, sizeof (mask));
l3_dst_offs = tags * 4 + get_l3_dst_offset (is6);
/* src mac in the other direction becomes dst */
memcpy (&mask[0], a->rules[i].src_mac, 6);
switch (tags)
{
case 0:
default:
tag_table = mvec[match_type_index].out_table_index;
eth = 12;
break;
case 1:
tag_table = mvec[match_type_index].out_dot1q_table_index;
mask[12] = 0x81;
mask[13] = 0x00;
eth = 16;
break;
case 2:
tag_table = mvec[match_type_index].out_dot1ad_table_index;
mask[12] = 0x88;
mask[13] = 0xa8;
mask[16] = 0x81;
mask[17] = 0x00;
eth = 20;
break;
}
if (is6)
{
memcpy (&mask[l3_dst_offs], &a->rules[i].src_ip_addr.ip6,
16);
mask[eth] = 0x86;
mask[eth + 1] = 0xdd;
}
else
{
memcpy (&mask[l3_dst_offs], &a->rules[i].src_ip_addr.ip4,
4);
mask[eth] = 0x08;
mask[eth + 1] = 0x00;
}
/* add session to table mvec[match_type_index].table_index; */
vnet_classify_add_del_session (cm, tag_table,
mask,
a->rules[i].is_permit ? ~0 : 0,
i, 0, action, metadata, 1);
// clib_memset (&mask[12], 0, sizeof (mask) - 12);
}
/* add ARP table entry too */
if (!is6 && (mvec[match_type_index].out_arp_table_index != ~0))
{
for (tags = 2; tags >= 0; tags--)
{
clib_memset (mask, 0, sizeof (mask));
switch (tags)
{
case 0:
default:
tag_table = mvec[match_type_index].out_arp_table_index;
mask[12] = 0x08;
mask[13] = 0x06;
break;
case 1:
tag_table =
mvec[match_type_index].out_arp_dot1q_table_index;
mask[12] = 0x81;
mask[13] = 0x00;
mask[16] = 0x08;
mask[17] = 0x06;
break;
case 2:
tag_table =
mvec[match_type_index].out_arp_dot1ad_table_index;
mask[12] = 0x88;
mask[13] = 0xa8;
mask[16] = 0x81;
mask[17] = 0x00;
mask[20] = 0x08;
mask[21] = 0x06;
break;
}
vnet_classify_add_del_session (cm, tag_table,
mask,
a->
rules[i].is_permit ? ~0 : 0,
i, 0, action, metadata, 1);
}
}
}
}
return 0;
}
static void
macip_destroy_classify_tables (acl_main_t * am, u32 macip_acl_index)
{
vnet_classify_main_t *cm = &vnet_classify_main;
macip_acl_list_t *a = pool_elt_at_index (am->macip_acls, macip_acl_index);
if (a->ip4_table_index != ~0)
{
acl_classify_add_del_table_small (cm, 0, ~0, ~0, ~0,
&a->ip4_table_index, 0);
a->ip4_table_index = ~0;
}
if (a->ip6_table_index != ~0)
{
acl_classify_add_del_table_small (cm, 0, ~0, ~0, ~0,
&a->ip6_table_index, 0);
a->ip6_table_index = ~0;
}
if (a->l2_table_index != ~0)
{
acl_classify_add_del_table_small (cm, 0, ~0, ~0, ~0, &a->l2_table_index,
0);
a->l2_table_index = ~0;
}
if (a->out_ip4_table_index != ~0)
{
acl_classify_add_del_table_small (cm, 0, ~0, ~0, ~0,
&a->out_ip4_table_index, 0);
a->out_ip4_table_index = ~0;
}
if (a->out_ip6_table_index != ~0)
{
acl_classify_add_del_table_small (cm, 0, ~0, ~0, ~0,
&a->out_ip6_table_index, 0);
a->out_ip6_table_index = ~0;
}
if (a->out_l2_table_index != ~0)
{
acl_classify_add_del_table_small (cm, 0, ~0, ~0, ~0,
&a->out_l2_table_index, 0);
a->out_l2_table_index = ~0;
}
}
static int
macip_maybe_apply_unapply_classifier_tables (acl_main_t * am, u32 acl_index,
int is_apply)
{
int rv = 0;
int rv0 = 0;
int i;
macip_acl_list_t *a = pool_elt_at_index (am->macip_acls, acl_index);
for (i = 0; i < vec_len (am->macip_acl_by_sw_if_index); i++)
if (vec_elt (am->macip_acl_by_sw_if_index, i) == acl_index)
{
rv0 = vnet_set_input_acl_intfc (am->vlib_main, i, a->ip4_table_index,
a->ip6_table_index, a->l2_table_index,
is_apply);
/* return the first unhappy outcome but make try to plough through. */
rv = rv || rv0;
rv0 =
vnet_set_output_acl_intfc (am->vlib_main, i, a->out_ip4_table_index,
a->out_ip6_table_index,
a->out_l2_table_index, is_apply);
/* return the first unhappy outcome but make try to plough through. */
rv = rv || rv0;
}
return rv;
}
static int
macip_acl_add_list (u32 count, vl_api_macip_acl_rule_t rules[],
u32 * acl_list_index, u8 * tag)
{
acl_main_t *am = &acl_main;
macip_acl_list_t *a;
macip_acl_rule_t *r;
macip_acl_rule_t *acl_new_rules = 0;
int i;
int rv = 0;
if (*acl_list_index != ~0)
{
/* They supplied some number, let's see if this MACIP ACL exists */
if (pool_is_free_index (am->macip_acls, *acl_list_index))
{
/* tried to replace a non-existent ACL, no point doing anything */
clib_warning
("acl-plugin-error: Trying to replace nonexistent MACIP ACL %d (tag %s)",
*acl_list_index, tag);
return VNET_API_ERROR_NO_SUCH_ENTRY;
}
}
if (0 == count)
{
clib_warning
("acl-plugin-warning: Trying to create empty MACIP ACL (tag %s)",
tag);
}
/* if replacing the ACL, unapply the classifier tables first - they will be gone.. */
if (~0 != *acl_list_index)
rv = macip_maybe_apply_unapply_classifier_tables (am, *acl_list_index, 0);
void *oldheap = acl_set_heap (am);
/* Create and populate the rules */
if (count > 0)
vec_validate (acl_new_rules, count - 1);
for (i = 0; i < count; i++)
{
r = &acl_new_rules[i];
r->is_permit = rules[i].is_permit;
r->is_ipv6 = rules[i].src_prefix.address.af;
mac_address_decode (rules[i].src_mac, (mac_address_t *) & r->src_mac);
mac_address_decode (rules[i].src_mac_mask,
(mac_address_t *) & r->src_mac_mask);
ip_address_decode (&rules[i].src_prefix.address, &r->src_ip_addr);
r->src_prefixlen = rules[i].src_prefix.len;
}
if (~0 == *acl_list_index)
{
/* Get ACL index */
pool_get_aligned (am->macip_acls, a, CLIB_CACHE_LINE_BYTES);
clib_memset (a, 0, sizeof (*a));
/* Will return the newly allocated ACL index */
*acl_list_index = a - am->macip_acls;
}
else
{
a = pool_elt_at_index (am->macip_acls, *acl_list_index);
if (a->rules)
{
vec_free (a->rules);
}
macip_destroy_classify_tables (am, *acl_list_index);
}
a->rules = acl_new_rules;
a->count = count;
memcpy (a->tag, tag, sizeof (a->tag));
/* Create and populate the classifier tables */
macip_create_classify_tables (am, *acl_list_index);
clib_mem_set_heap (oldheap);
/* If the ACL was already applied somewhere, reapply the newly created tables */
rv = rv
|| macip_maybe_apply_unapply_classifier_tables (am, *acl_list_index, 1);
return rv;
}
/* No check that sw_if_index denotes a valid interface - the callers
* were supposed to validate.
*
* That said, if sw_if_index corresponds to an interface that exists at all,
* this function must return errors accordingly if the ACL is not applied.
*/
static int
macip_acl_interface_del_acl (acl_main_t * am, u32 sw_if_index)
{
int rv;
u32 macip_acl_index;
macip_acl_list_t *a;
/* The vector is too short - MACIP ACL is not applied */
if (sw_if_index >= vec_len (am->macip_acl_by_sw_if_index))
return VNET_API_ERROR_NO_SUCH_ENTRY;
macip_acl_index = am->macip_acl_by_sw_if_index[sw_if_index];
/* No point in deleting MACIP ACL which is not applied */
if (~0 == macip_acl_index)
return VNET_API_ERROR_NO_SUCH_ENTRY;
a = pool_elt_at_index (am->macip_acls, macip_acl_index);
/* remove the classifier tables off the interface L2 ACL */
rv =
vnet_set_input_acl_intfc (am->vlib_main, sw_if_index, a->ip4_table_index,
a->ip6_table_index, a->l2_table_index, 0);
rv |=
vnet_set_output_acl_intfc (am->vlib_main, sw_if_index,
a->out_ip4_table_index, a->out_ip6_table_index,
a->out_l2_table_index, 0);
/* Unset the MACIP ACL index */
am->macip_acl_by_sw_if_index[sw_if_index] = ~0;
/* macip_acl_interface_add_acl did a vec_add1() to this previously, so [sw_if_index] should be valid */
u32 index = vec_search (am->sw_if_index_vec_by_macip_acl[macip_acl_index],
sw_if_index);
if (index != ~0)
vec_del1 (am->sw_if_index_vec_by_macip_acl[macip_acl_index], index);
return rv;
}
/* No check for validity of sw_if_index - the callers were supposed to validate */
static int
macip_acl_interface_add_acl (acl_main_t * am, u32 sw_if_index,
u32 macip_acl_index)
{
macip_acl_list_t *a;
int rv;
if (pool_is_free_index (am->macip_acls, macip_acl_index))
{
return VNET_API_ERROR_NO_SUCH_ENTRY;
}
void *oldheap = acl_set_heap (am);
a = pool_elt_at_index (am->macip_acls, macip_acl_index);
vec_validate_init_empty (am->macip_acl_by_sw_if_index, sw_if_index, ~0);
vec_validate (am->sw_if_index_vec_by_macip_acl, macip_acl_index);
vec_add1 (am->sw_if_index_vec_by_macip_acl[macip_acl_index], sw_if_index);
clib_mem_set_heap (oldheap);
/* If there already a MACIP ACL applied, unapply it */
if (~0 != am->macip_acl_by_sw_if_index[sw_if_index])
macip_acl_interface_del_acl (am, sw_if_index);
am->macip_acl_by_sw_if_index[sw_if_index] = macip_acl_index;
/* Apply the classifier tables for L2 ACLs */
rv =
vnet_set_input_acl_intfc (am->vlib_main, sw_if_index, a->ip4_table_index,
a->ip6_table_index, a->l2_table_index, 1);
rv |=
vnet_set_output_acl_intfc (am->vlib_main, sw_if_index,
a->out_ip4_table_index, a->out_ip6_table_index,
a->out_l2_table_index, 1);
return rv;
}
static int
macip_acl_del_list (u32 acl_list_index)
{
acl_main_t *am = &acl_main;
macip_acl_list_t *a;
int i;
if (pool_is_free_index (am->macip_acls, acl_list_index))
{
return VNET_API_ERROR_NO_SUCH_ENTRY;
}
/* delete any references to the ACL */
for (i = 0; i < vec_len (am->macip_acl_by_sw_if_index); i++)
{
if (am->macip_acl_by_sw_if_index[i] == acl_list_index)
{
macip_acl_interface_del_acl (am, i);
}
}
void *oldheap = acl_set_heap (am);
/* Now that classifier tables are detached, clean them up */
macip_destroy_classify_tables (am, acl_list_index);
/* now we can delete the ACL itself */
a = pool_elt_at_index (am->macip_acls, acl_list_index);
if (a->rules)
{
vec_free (a->rules);
}
pool_put (am->macip_acls, a);
clib_mem_set_heap (oldheap);
return 0;
}
static int
macip_acl_interface_add_del_acl (u32 sw_if_index, u8 is_add,
u32 acl_list_index)
{
acl_main_t *am = &acl_main;
int rv = -1;
if (is_add)
{
rv = macip_acl_interface_add_acl (am, sw_if_index, acl_list_index);
}
else
{
rv = macip_acl_interface_del_acl (am, sw_if_index);
}
return rv;
}
/*
* If the client does not allocate enough memory for a variable-length
* message, and then proceed to use it as if the full memory allocated,
* absent the check we happily consume that on the VPP side, and go
* along as if nothing happened. However, the resulting
* effects range from just garbage in the API decode
* (because the decoder snoops too far), to potential memory
* corruptions.
*
* This verifies that the actual length of the message is
* at least expected_len, and complains loudly if it is not.
*
* A failing check here is 100% a software bug on the API user side,
* so we might as well yell.
*
*/
static int
verify_message_len (void *mp, u32 expected_len, char *where)
{
u32 supplied_len = vl_msg_api_get_msg_length (mp);
if (supplied_len < expected_len)
{
clib_warning ("%s: Supplied message length %d is less than expected %d",
where, supplied_len, expected_len);
return 0;
}
else
{
return 1;
}
}
/* API message handler */
static void
vl_api_acl_add_replace_t_handler (vl_api_acl_add_replace_t * mp)
{
vl_api_acl_add_replace_reply_t *rmp;
acl_main_t *am = &acl_main;
int rv;
u32 acl_list_index = ntohl (mp->acl_index);
u32 acl_count = ntohl (mp->count);
u32 expected_len = sizeof (*mp) + acl_count * sizeof (mp->r[0]);
if (verify_message_len (mp, expected_len, "acl_add_replace"))
{
rv = acl_add_list (acl_count, mp->r, &acl_list_index, mp->tag);
}
else
{
rv = VNET_API_ERROR_INVALID_VALUE;
}
/* *INDENT-OFF* */
REPLY_MACRO2(VL_API_ACL_ADD_REPLACE_REPLY,
({
rmp->acl_index = htonl(acl_list_index);
}));
/* *INDENT-ON* */
}
static void
vl_api_acl_del_t_handler (vl_api_acl_del_t * mp)
{
acl_main_t *am = &acl_main;
vl_api_acl_del_reply_t *rmp;
int rv;
rv = acl_del_list (ntohl (mp->acl_index));
REPLY_MACRO (VL_API_ACL_DEL_REPLY);
}
static void
vl_api_acl_stats_intf_counters_enable_t_handler
(vl_api_acl_stats_intf_counters_enable_t * mp)
{
acl_main_t *am = &acl_main;
vl_api_acl_stats_intf_counters_enable_reply_t *rmp;
int rv;
rv = acl_stats_intf_counters_enable_disable (am, mp->enable);
REPLY_MACRO (VL_API_ACL_DEL_REPLY);
}
static void
vl_api_acl_interface_add_del_t_handler (vl_api_acl_interface_add_del_t * mp)
{
acl_main_t *am = &acl_main;
vnet_interface_main_t *im = &am->vnet_main->interface_main;
u32 sw_if_index = ntohl (mp->sw_if_index);
vl_api_acl_interface_add_del_reply_t *rmp;
int rv = -1;
if (pool_is_free_index (im->sw_interfaces, sw_if_index))
rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
else
rv =
acl_interface_add_del_inout_acl (sw_if_index, mp->is_add,
mp->is_input, ntohl (mp->acl_index));
REPLY_MACRO (VL_API_ACL_INTERFACE_ADD_DEL_REPLY);
}
static void
vl_api_acl_interface_set_acl_list_t_handler
(vl_api_acl_interface_set_acl_list_t * mp)
{
acl_main_t *am = &acl_main;
vl_api_acl_interface_set_acl_list_reply_t *rmp;
int rv = 0;
int i;
vnet_interface_main_t *im = &am->vnet_main->interface_main;
u32 sw_if_index = ntohl (mp->sw_if_index);
if (pool_is_free_index (im->sw_interfaces, sw_if_index))
rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
else
{
int may_clear_sessions = 1;
for (i = 0; i < mp->count; i++)
{
if (acl_is_not_defined (am, ntohl (mp->acls[i])))
{
/* ACL does not exist, so we can not apply it */
rv = VNET_API_ERROR_NO_SUCH_ENTRY;
}
}
if (0 == rv)
{
void *oldheap = acl_set_heap (am);
u32 *in_acl_vec = 0;
u32 *out_acl_vec = 0;
for (i = 0; i < mp->count; i++)
if (i < mp->n_input)
vec_add1 (in_acl_vec, clib_net_to_host_u32 (mp->acls[i]));
else
vec_add1 (out_acl_vec, clib_net_to_host_u32 (mp->acls[i]));
rv =
acl_interface_set_inout_acl_list (am, sw_if_index, 0, out_acl_vec,
&may_clear_sessions);
rv = rv
|| acl_interface_set_inout_acl_list (am, sw_if_index, 1,
in_acl_vec,
&may_clear_sessions);
vec_free (in_acl_vec);
vec_free (out_acl_vec);
clib_mem_set_heap (oldheap);
}
}
REPLY_MACRO (VL_API_ACL_INTERFACE_SET_ACL_LIST_REPLY);
}
static void
copy_acl_rule_to_api_rule (vl_api_acl_rule_t * api_rule, acl_rule_t * r)
{
api_rule->is_permit = r->is_permit;
ip_address_encode (&r->src, r->is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
&api_rule->src_prefix.address);
ip_address_encode (&r->dst, r->is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
&api_rule->dst_prefix.address);
api_rule->src_prefix.len = r->src_prefixlen;
api_rule->dst_prefix.len = r->dst_prefixlen;
api_rule->proto = r->proto;
api_rule->srcport_or_icmptype_first = htons (r->src_port_or_type_first);
api_rule->srcport_or_icmptype_last = htons (r->src_port_or_type_last);
api_rule->dstport_or_icmpcode_first = htons (r->dst_port_or_code_first);
api_rule->dstport_or_icmpcode_last = htons (r->dst_port_or_code_last);
api_rule->tcp_flags_mask = r->tcp_flags_mask;
api_rule->tcp_flags_value = r->tcp_flags_value;
}
static void
send_acl_details (acl_main_t * am, vl_api_registration_t * reg,
acl_list_t * acl, u32 context)
{
vl_api_acl_details_t *mp;
vl_api_acl_rule_t *rules;
int i;
acl_rule_t *acl_rules = acl->rules;
int msg_size = sizeof (*mp) + sizeof (mp->r[0]) * vec_len (acl_rules);
void *oldheap = acl_set_heap (am);
mp = vl_msg_api_alloc (msg_size);
clib_memset (mp, 0, msg_size);
mp->_vl_msg_id = ntohs (VL_API_ACL_DETAILS + am->msg_id_base);
/* fill in the message */
mp->context = context;
mp->count = htonl (vec_len (acl_rules));
mp->acl_index = htonl (acl - am->acls);
memcpy (mp->tag, acl->tag, sizeof (mp->tag));
// clib_memcpy (mp->r, acl->rules, acl->count * sizeof(acl->rules[0]));
rules = mp->r;
for (i = 0; i < vec_len (acl_rules); i++)
{
copy_acl_rule_to_api_rule (&rules[i], &acl_rules[i]);
}
clib_mem_set_heap (oldheap);
vl_api_send_msg (reg, (u8 *) mp);
}
static void
vl_api_acl_dump_t_handler (vl_api_acl_dump_t * mp)
{
acl_main_t *am = &acl_main;
u32 acl_index;
acl_list_t *acl;
int rv = -1;
vl_api_registration_t *reg;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
if (mp->acl_index == ~0)
{
/* *INDENT-OFF* */
/* Just dump all ACLs */
pool_foreach (acl, am->acls,
({
send_acl_details(am, reg, acl, mp->context);
}));
/* *INDENT-ON* */
}
else
{
acl_index = ntohl (mp->acl_index);
if (!pool_is_free_index (am->acls, acl_index))
{
acl = pool_elt_at_index (am->acls, acl_index);
send_acl_details (am, reg, acl, mp->context);
}
}
if (rv == -1)
{
/* FIXME API: should we signal an error here at all ? */
return;
}
}
static void
send_acl_interface_list_details (acl_main_t * am,
vl_api_registration_t * reg,
u32 sw_if_index, u32 context)
{
vl_api_acl_interface_list_details_t *mp;
int msg_size;
int n_input;
int n_output;
int count;
int i = 0;
void *oldheap = acl_set_heap (am);
vec_validate (am->input_acl_vec_by_sw_if_index, sw_if_index);
vec_validate (am->output_acl_vec_by_sw_if_index, sw_if_index);
clib_mem_set_heap (oldheap);
n_input = vec_len (am->input_acl_vec_by_sw_if_index[sw_if_index]);
n_output = vec_len (am->output_acl_vec_by_sw_if_index[sw_if_index]);
count = n_input + n_output;
msg_size = sizeof (*mp);
msg_size += sizeof (mp->acls[0]) * count;
mp = vl_msg_api_alloc (msg_size);
clib_memset (mp, 0, msg_size);
mp->_vl_msg_id =
ntohs (VL_API_ACL_INTERFACE_LIST_DETAILS + am->msg_id_base);
/* fill in the message */
mp->context = context;
mp->sw_if_index = htonl (sw_if_index);
mp->count = count;
mp->n_input = n_input;
for (i = 0; i < n_input; i++)
{
mp->acls[i] = htonl (am->input_acl_vec_by_sw_if_index[sw_if_index][i]);
}
for (i = 0; i < n_output; i++)
{
mp->acls[n_input + i] =
htonl (am->output_acl_vec_by_sw_if_index[sw_if_index][i]);
}
vl_api_send_msg (reg, (u8 *) mp);
}
static void
vl_api_acl_interface_list_dump_t_handler (vl_api_acl_interface_list_dump_t *
mp)
{
acl_main_t *am = &acl_main;
vnet_sw_interface_t *swif;
vnet_interface_main_t *im = &am->vnet_main->interface_main;
u32 sw_if_index;
vl_api_registration_t *reg;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
if (mp->sw_if_index == ~0)
{
/* *INDENT-OFF* */
pool_foreach (swif, im->sw_interfaces,
({
send_acl_interface_list_details(am, reg, swif->sw_if_index, mp->context);
}));
/* *INDENT-ON* */
}
else
{
sw_if_index = ntohl (mp->sw_if_index);
if (!pool_is_free_index (im->sw_interfaces, sw_if_index))
send_acl_interface_list_details (am, reg, sw_if_index, mp->context);
}
}
/* MACIP ACL API handlers */
static void
vl_api_macip_acl_add_t_handler (vl_api_macip_acl_add_t * mp)
{
vl_api_macip_acl_add_reply_t *rmp;
acl_main_t *am = &acl_main;
int rv;
u32 acl_list_index = ~0;
u32 acl_count = ntohl (mp->count);
u32 expected_len = sizeof (*mp) + acl_count * sizeof (mp->r[0]);
if (verify_message_len (mp, expected_len, "macip_acl_add"))
{
rv = macip_acl_add_list (acl_count, mp->r, &acl_list_index, mp->tag);
}
else
{
rv = VNET_API_ERROR_INVALID_VALUE;
}
/* *INDENT-OFF* */
REPLY_MACRO2(VL_API_MACIP_ACL_ADD_REPLY,
({
rmp->acl_index = htonl(acl_list_index);
}));
/* *INDENT-ON* */
}
static void
vl_api_macip_acl_add_replace_t_handler (vl_api_macip_acl_add_replace_t * mp)
{
vl_api_macip_acl_add_replace_reply_t *rmp;
acl_main_t *am = &acl_main;
int rv;
u32 acl_list_index = ntohl (mp->acl_index);
u32 acl_count = ntohl (mp->count);
u32 expected_len = sizeof (*mp) + acl_count * sizeof (mp->r[0]);
if (verify_message_len (mp, expected_len, "macip_acl_add_replace"))
{
rv = macip_acl_add_list (acl_count, mp->r, &acl_list_index, mp->tag);
}
else
{
rv = VNET_API_ERROR_INVALID_VALUE;
}
/* *INDENT-OFF* */
REPLY_MACRO2(VL_API_MACIP_ACL_ADD_REPLACE_REPLY,
({
rmp->acl_index = htonl(acl_list_index);
}));
/* *INDENT-ON* */
}
static void
vl_api_macip_acl_del_t_handler (vl_api_macip_acl_del_t * mp)
{
acl_main_t *am = &acl_main;
vl_api_macip_acl_del_reply_t *rmp;
int rv;
rv = macip_acl_del_list (ntohl (mp->acl_index));
REPLY_MACRO (VL_API_MACIP_ACL_DEL_REPLY);
}
static void
vl_api_macip_acl_interface_add_del_t_handler
(vl_api_macip_acl_interface_add_del_t * mp)
{
acl_main_t *am = &acl_main;
vl_api_macip_acl_interface_add_del_reply_t *rmp;
int rv = -1;
vnet_interface_main_t *im = &am->vnet_main->interface_main;
u32 sw_if_index = ntohl (mp->sw_if_index);
if (pool_is_free_index (im->sw_interfaces, sw_if_index))
rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
else
rv =
macip_acl_interface_add_del_acl (ntohl (mp->sw_if_index), mp->is_add,
ntohl (mp->acl_index));
REPLY_MACRO (VL_API_MACIP_ACL_INTERFACE_ADD_DEL_REPLY);
}
static void
send_macip_acl_details (acl_main_t * am, vl_api_registration_t * reg,
macip_acl_list_t * acl, u32 context)
{
vl_api_macip_acl_details_t *mp;
vl_api_macip_acl_rule_t *rules;
macip_acl_rule_t *r;
int i;
int msg_size = sizeof (*mp) + (acl ? sizeof (mp->r[0]) * acl->count : 0);
mp = vl_msg_api_alloc (msg_size);
clib_memset (mp, 0, msg_size);
mp->_vl_msg_id = ntohs (VL_API_MACIP_ACL_DETAILS + am->msg_id_base);
/* fill in the message */
mp->context = context;
if (acl)
{
memcpy (mp->tag, acl->tag, sizeof (mp->tag));
mp->count = htonl (acl->count);
mp->acl_index = htonl (acl - am->macip_acls);
rules = mp->r;
for (i = 0; i < acl->count; i++)
{
r = &acl->rules[i];
rules[i].is_permit = r->is_permit;
mac_address_encode ((mac_address_t *) & r->src_mac,
rules[i].src_mac);
mac_address_encode ((mac_address_t *) & r->src_mac_mask,
rules[i].src_mac_mask);
ip_address_encode (&r->src_ip_addr,
r->is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
&rules[i].src_prefix.address);
rules[i].src_prefix.len = r->src_prefixlen;
}
}
else
{
/* No martini, no party - no ACL applied to this interface. */
mp->acl_index = ~0;
mp->count = 0;
}
vl_api_send_msg (reg, (u8 *) mp);
}
static void
vl_api_macip_acl_dump_t_handler (vl_api_macip_acl_dump_t * mp)
{
acl_main_t *am = &acl_main;
macip_acl_list_t *acl;
vl_api_registration_t *reg;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
if (mp->acl_index == ~0)
{
/* Just dump all ACLs for now, with sw_if_index = ~0 */
/* *INDENT-OFF* */
pool_foreach (acl, am->macip_acls,
({
send_macip_acl_details (am, reg, acl, mp->context);
}));
/* *INDENT-ON* */
}
else
{
u32 acl_index = ntohl (mp->acl_index);
if (!pool_is_free_index (am->macip_acls, acl_index))
{
acl = pool_elt_at_index (am->macip_acls, acl_index);
send_macip_acl_details (am, reg, acl, mp->context);
}
}
}
static void
vl_api_macip_acl_interface_get_t_handler (vl_api_macip_acl_interface_get_t *
mp)
{
acl_main_t *am = &acl_main;
vl_api_macip_acl_interface_get_reply_t *rmp;
u32 count = vec_len (am->macip_acl_by_sw_if_index);
int msg_size = sizeof (*rmp) + sizeof (rmp->acls[0]) * count;
vl_api_registration_t *reg;
int i;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
rmp = vl_msg_api_alloc (msg_size);
clib_memset (rmp, 0, msg_size);
rmp->_vl_msg_id =
ntohs (VL_API_MACIP_ACL_INTERFACE_GET_REPLY + am->msg_id_base);
rmp->context = mp->context;
rmp->count = htonl (count);
for (i = 0; i < count; i++)
{
rmp->acls[i] = htonl (am->macip_acl_by_sw_if_index[i]);
}
vl_api_send_msg (reg, (u8 *) rmp);
}
static void
send_macip_acl_interface_list_details (acl_main_t * am,
vl_api_registration_t * reg,
u32 sw_if_index,
u32 acl_index, u32 context)
{
vl_api_macip_acl_interface_list_details_t *rmp;
/* at this time there is only ever 1 mac ip acl per interface */
int msg_size = sizeof (*rmp) + sizeof (rmp->acls[0]);
rmp = vl_msg_api_alloc (msg_size);
clib_memset (rmp, 0, msg_size);
rmp->_vl_msg_id =
ntohs (VL_API_MACIP_ACL_INTERFACE_LIST_DETAILS + am->msg_id_base);
/* fill in the message */
rmp->context = context;
rmp->count = 1;
rmp->sw_if_index = htonl (sw_if_index);
rmp->acls[0] = htonl (acl_index);
vl_api_send_msg (reg, (u8 *) rmp);
}
static void
vl_api_macip_acl_interface_list_dump_t_handler
(vl_api_macip_acl_interface_list_dump_t * mp)
{
vl_api_registration_t *reg;
acl_main_t *am = &acl_main;
u32 sw_if_index = ntohl (mp->sw_if_index);
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
if (sw_if_index == ~0)
{
vec_foreach_index (sw_if_index, am->macip_acl_by_sw_if_index)
{
if (~0 != am->macip_acl_by_sw_if_index[sw_if_index])
{
send_macip_acl_interface_list_details (am, reg, sw_if_index,
am->macip_acl_by_sw_if_index
[sw_if_index],
mp->context);
}
}
}
else
{
if (vec_len (am->macip_acl_by_sw_if_index) > sw_if_index)
{
send_macip_acl_interface_list_details (am, reg, sw_if_index,
am->macip_acl_by_sw_if_index
[sw_if_index], mp->context);
}
}
}
static void
vl_api_acl_interface_set_etype_whitelist_t_handler
(vl_api_acl_interface_set_etype_whitelist_t * mp)
{
acl_main_t *am = &acl_main;
vl_api_acl_interface_set_etype_whitelist_reply_t *rmp;
int rv = 0;
int i;
vnet_interface_main_t *im = &am->vnet_main->interface_main;
u32 sw_if_index = ntohl (mp->sw_if_index);
u16 *vec_in = 0, *vec_out = 0;
void *oldheap = acl_set_heap (am);
if (pool_is_free_index (im->sw_interfaces, sw_if_index))
rv = VNET_API_ERROR_INVALID_SW_IF_INDEX;
else
{
for (i = 0; i < mp->count; i++)
{
if (i < mp->n_input)
vec_add1 (vec_in, ntohs (mp->whitelist[i]));
else
vec_add1 (vec_out, ntohs (mp->whitelist[i]));
}
rv = acl_set_etype_whitelists (am, sw_if_index, vec_in, vec_out);
}
clib_mem_set_heap (oldheap);
REPLY_MACRO (VL_API_ACL_INTERFACE_SET_ETYPE_WHITELIST_REPLY);
}
static void
send_acl_interface_etype_whitelist_details (acl_main_t * am,
vl_api_registration_t * reg,
u32 sw_if_index, u32 context)
{
vl_api_acl_interface_etype_whitelist_details_t *mp;
int msg_size;
int n_input = 0;
int n_output = 0;
int count = 0;
int i = 0;
u16 *whitelist_in = 0;
u16 *whitelist_out = 0;
if (intf_has_etype_whitelist (am, sw_if_index, 0))
whitelist_out =
vec_elt (am->output_etype_whitelist_by_sw_if_index, sw_if_index);
if (intf_has_etype_whitelist (am, sw_if_index, 1))
whitelist_in =
vec_elt (am->input_etype_whitelist_by_sw_if_index, sw_if_index);
if ((0 == whitelist_in) && (0 == whitelist_out))
return; /* nothing to do */
void *oldheap = acl_set_heap (am);
n_input = vec_len (whitelist_in);
n_output = vec_len (whitelist_out);
count = n_input + n_output;
msg_size = sizeof (*mp);
msg_size += sizeof (mp->whitelist[0]) * count;
mp = vl_msg_api_alloc (msg_size);
clib_memset (mp, 0, msg_size);
mp->_vl_msg_id =
ntohs (VL_API_ACL_INTERFACE_ETYPE_WHITELIST_DETAILS + am->msg_id_base);
/* fill in the message */
mp->context = context;
mp->sw_if_index = htonl (sw_if_index);
mp->count = count;
mp->n_input = n_input;
for (i = 0; i < n_input; i++)
{
mp->whitelist[i] = htons (whitelist_in[i]);
}
for (i = 0; i < n_output; i++)
{
mp->whitelist[n_input + i] = htons (whitelist_out[i]);
}
clib_mem_set_heap (oldheap);
vl_api_send_msg (reg, (u8 *) mp);
}
static void
vl_api_acl_interface_etype_whitelist_dump_t_handler
(vl_api_acl_interface_list_dump_t * mp)
{
acl_main_t *am = &acl_main;
vnet_sw_interface_t *swif;
vnet_interface_main_t *im = &am->vnet_main->interface_main;
u32 sw_if_index;
vl_api_registration_t *reg;
reg = vl_api_client_index_to_registration (mp->client_index);
if (!reg)
return;
if (mp->sw_if_index == ~0)
{
/* *INDENT-OFF* */
pool_foreach (swif, im->sw_interfaces,
({
send_acl_interface_etype_whitelist_details(am, reg, swif->sw_if_index, mp->context);
}));
/* *INDENT-ON* */
}
else
{
sw_if_index = ntohl (mp->sw_if_index);
if (!pool_is_free_index (im->sw_interfaces, sw_if_index))
send_acl_interface_etype_whitelist_details (am, reg, sw_if_index,
mp->context);
}
}
static void
acl_set_timeout_sec (int timeout_type, u32 value)
{
acl_main_t *am = &acl_main;
clib_time_t *ct = &am->vlib_main->clib_time;
if (timeout_type < ACL_N_TIMEOUTS)
{
am->session_timeout_sec[timeout_type] = value;
}
else
{
clib_warning ("Unknown timeout type %d", timeout_type);
return;
}
am->session_timeout[timeout_type] =
(u64) (((f64) value) / ct->seconds_per_clock);
}
static void
acl_set_session_max_entries (u32 value)
{
acl_main_t *am = &acl_main;
am->fa_conn_table_max_entries = value;
}
static int
acl_set_skip_ipv6_eh (u32 eh, u32 value)
{
acl_main_t *am = &acl_main;
if ((eh < 256) && (value < 2))
{
am->fa_ipv6_known_eh_bitmap =
clib_bitmap_set (am->fa_ipv6_known_eh_bitmap, eh, value);
return 1;
}
else
return 0;
}
static clib_error_t *
acl_sw_interface_add_del (vnet_main_t * vnm, u32 sw_if_index, u32 is_add)
{
acl_main_t *am = &acl_main;
if (0 == am->acl_mheap)
{
/* ACL heap is not initialized, so definitely nothing to do. */
return 0;
}
if (0 == is_add)
{
int may_clear_sessions = 1;
vlib_process_signal_event (am->vlib_main, am->fa_cleaner_node_index,
ACL_FA_CLEANER_DELETE_BY_SW_IF_INDEX,
sw_if_index);
/* also unapply any ACLs in case the users did not do so. */
macip_acl_interface_del_acl (am, sw_if_index);
acl_interface_reset_inout_acls (sw_if_index, 0, &may_clear_sessions);
acl_interface_reset_inout_acls (sw_if_index, 1, &may_clear_sessions);
}
return 0;
}
VNET_SW_INTERFACE_ADD_DEL_FUNCTION (acl_sw_interface_add_del);
static clib_error_t *
acl_set_aclplugin_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
u32 timeout = 0;
u32 val = 0;
u32 eh_val = 0;
uword memory_size = 0;
acl_main_t *am = &acl_main;
if (unformat (input, "skip-ipv6-extension-header %u %u", &eh_val, &val))
{
if (!acl_set_skip_ipv6_eh (eh_val, val))
{
error = clib_error_return (0, "expecting eh=0..255, value=0..1");
}
goto done;
}
if (unformat (input, "use-hash-acl-matching %u", &val))
{
am->use_hash_acl_matching = (val != 0);
goto done;
}
if (unformat (input, "l4-match-nonfirst-fragment %u", &val))
{
am->l4_match_nonfirst_fragment = (val != 0);
goto done;
}
if (unformat (input, "reclassify-sessions %u", &val))
{
am->reclassify_sessions = (val != 0);
goto done;
}
if (unformat (input, "event-trace"))
{
if (!unformat (input, "%u", &val))
{
error = clib_error_return (0,
"expecting trace level, got `%U`",
format_unformat_error, input);
goto done;
}
else
{
am->trace_acl = val;
goto done;
}
}
if (unformat (input, "heap"))
{
if (unformat (input, "main"))
{
if (unformat (input, "validate %u", &val))
acl_plugin_acl_set_validate_heap (am, val);
else if (unformat (input, "trace %u", &val))
acl_plugin_acl_set_trace_heap (am, val);
goto done;
}
else if (unformat (input, "hash"))
{
if (unformat (input, "validate %u", &val))
acl_plugin_hash_acl_set_validate_heap (val);
else if (unformat (input, "trace %u", &val))
acl_plugin_hash_acl_set_trace_heap (val);
goto done;
}
goto done;
}
if (unformat (input, "session"))
{
if (unformat (input, "table"))
{
/* The commands here are for tuning/testing. No user-serviceable parts inside */
if (unformat (input, "max-entries"))
{
if (!unformat (input, "%u", &val))
{
error = clib_error_return (0,
"expecting maximum number of entries, got `%U`",
format_unformat_error, input);
goto done;
}
else
{
acl_set_session_max_entries (val);
goto done;
}
}
if (unformat (input, "hash-table-buckets"))
{
if (!unformat (input, "%u", &val))
{
error = clib_error_return (0,
"expecting maximum number of hash table buckets, got `%U`",
format_unformat_error, input);
goto done;
}
else
{
am->fa_conn_table_hash_num_buckets = val;
goto done;
}
}
if (unformat (input, "hash-table-memory"))
{
if (!unformat (input, "%U", unformat_memory_size, &memory_size))
{
error = clib_error_return (0,
"expecting maximum amount of hash table memory, got `%U`",
format_unformat_error, input);
goto done;
}
else
{
am->fa_conn_table_hash_memory_size = memory_size;
goto done;
}
}
if (unformat (input, "event-trace"))
{
if (!unformat (input, "%u", &val))
{
error = clib_error_return (0,
"expecting trace level, got `%U`",
format_unformat_error, input);
goto done;
}
else
{
am->trace_sessions = val;
goto done;
}
}
goto done;
}
if (unformat (input, "timeout"))
{
if (unformat (input, "udp"))
{
if (unformat (input, "idle"))
{
if (!unformat (input, "%u", &timeout))
{
error = clib_error_return (0,
"expecting timeout value in seconds, got `%U`",
format_unformat_error,
input);
goto done;
}
else
{
acl_set_timeout_sec (ACL_TIMEOUT_UDP_IDLE, timeout);
goto done;
}
}
}
if (unformat (input, "tcp"))
{
if (unformat (input, "idle"))
{
if (!unformat (input, "%u", &timeout))
{
error = clib_error_return (0,
"expecting timeout value in seconds, got `%U`",
format_unformat_error,
input);
goto done;
}
else
{
acl_set_timeout_sec (ACL_TIMEOUT_TCP_IDLE, timeout);
goto done;
}
}
if (unformat (input, "transient"))
{
if (!unformat (input, "%u", &timeout))
{
error = clib_error_return (0,
"expecting timeout value in seconds, got `%U`",
format_unformat_error,
input);
goto done;
}
else
{
acl_set_timeout_sec (ACL_TIMEOUT_TCP_TRANSIENT,
timeout);
goto done;
}
}
}
goto done;
}
}
done:
return error;
}
static u8 *
my_format_mac_address (u8 * s, va_list * args)
{
u8 *a = va_arg (*args, u8 *);
return format (s, "%02x:%02x:%02x:%02x:%02x:%02x",
a[0], a[1], a[2], a[3], a[4], a[5]);
}
static inline u8 *
my_macip_acl_rule_t_pretty_format (u8 * out, va_list * args)
{
macip_acl_rule_t *a = va_arg (*args, macip_acl_rule_t *);
out = format (out, "%s action %d ip %U/%d mac %U mask %U",
a->is_ipv6 ? "ipv6" : "ipv4", a->is_permit,
format_ip46_address, &a->src_ip_addr,
a->is_ipv6 ? IP46_TYPE_IP6 : IP46_TYPE_IP4,
a->src_prefixlen,
my_format_mac_address, a->src_mac,
my_format_mac_address, a->src_mac_mask);
return (out);
}
static void
macip_acl_print (acl_main_t * am, u32 macip_acl_index)
{
vlib_main_t *vm = am->vlib_main;
int i;
/* Don't try to print someone else's memory */
if (macip_acl_index >= vec_len (am->macip_acls))
return;
macip_acl_list_t *a = vec_elt_at_index (am->macip_acls, macip_acl_index);
int free_pool_slot = pool_is_free_index (am->macip_acls, macip_acl_index);
vlib_cli_output (vm,
"MACIP acl_index: %d, count: %d (true len %d) tag {%s} is free pool slot: %d\n",
macip_acl_index, a->count, vec_len (a->rules), a->tag,
free_pool_slot);
vlib_cli_output (vm,
" ip4_table_index %d, ip6_table_index %d, l2_table_index %d\n",
a->ip4_table_index, a->ip6_table_index, a->l2_table_index);
vlib_cli_output (vm,
" out_ip4_table_index %d, out_ip6_table_index %d, out_l2_table_index %d\n",
a->out_ip4_table_index, a->out_ip6_table_index,
a->out_l2_table_index);
for (i = 0; i < vec_len (a->rules); i++)
vlib_cli_output (vm, " rule %d: %U\n", i,
my_macip_acl_rule_t_pretty_format,
vec_elt_at_index (a->rules, i));
}
static clib_error_t *
acl_set_aclplugin_interface_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, is_add, is_input, acl_index;
is_add = is_input = 1;
acl_index = sw_if_index = ~0;
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%U",
unformat_vnet_sw_interface, vnet_get_main (),
&sw_if_index))
;
else if (unformat (line_input, "add"))
is_add = 1;
else if (unformat (line_input, "del"))
is_add = 0;
else if (unformat (line_input, "acl %d", &acl_index))
;
else if (unformat (line_input, "input"))
is_input = 1;
else if (unformat (line_input, "output"))
is_input = 0;
else
break;
}
if (~0 == sw_if_index)
return (clib_error_return (0, "invalid interface"));
if (~0 == acl_index)
return (clib_error_return (0, "invalid acl"));
acl_interface_add_del_inout_acl (sw_if_index, is_add, is_input, acl_index);
unformat_free (line_input);
return (NULL);
}
#define vec_validate_acl_rules(v, idx) \
do { \
if (vec_len(v) < idx+1) { \
vec_validate(v, idx); \
v[idx].is_permit = 0x1; \
v[idx].srcport_or_icmptype_last = 0xffff; \
v[idx].dstport_or_icmpcode_last = 0xffff; \
} \
} while (0)
static clib_error_t *
acl_set_aclplugin_acl_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
unformat_input_t _line_input, *line_input = &_line_input;
vl_api_acl_rule_t *rules = 0;
int rv;
int rule_idx = 0;
int n_rules_override = -1;
u32 proto = 0;
u32 port1 = 0;
u32 port2 = 0;
u32 action = 0;
u32 tcpflags, tcpmask;
u32 src_prefix_length = 0, dst_prefix_length = 0;
ip46_address_t src, dst;
u8 *tag = (u8 *) "cli";
if (!unformat_user (input, unformat_line_input, line_input))
return 0;
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "permit+reflect"))
{
vec_validate_acl_rules (rules, rule_idx);
rules[rule_idx].is_permit = 2;
}
else if (unformat (line_input, "permit"))
{
vec_validate_acl_rules (rules, rule_idx);
rules[rule_idx].is_permit = 1;
}
else if (unformat (line_input, "deny"))
{
vec_validate_acl_rules (rules, rule_idx);
rules[rule_idx].is_permit = 0;
}
else if (unformat (line_input, "count %d", &n_rules_override))
{
/* we will use this later */
}
else if (unformat (line_input, "action %d", &action))
{
vec_validate_acl_rules (rules, rule_idx);
rules[rule_idx].is_permit = action;
}
else if (unformat (line_input, "src %U/%d",
unformat_ip46_address, &src, IP46_TYPE_ANY,
&src_prefix_length))
{
vec_validate_acl_rules (rules, rule_idx);
ip_address_encode (&src, IP46_TYPE_ANY,
&rules[rule_idx].src_prefix.address);
rules[rule_idx].src_prefix.address.af = ADDRESS_IP4;
rules[rule_idx].src_prefix.len = src_prefix_length;
}
else if (unformat (line_input, "dst %U/%d",
unformat_ip46_address, &dst, IP46_TYPE_ANY,
&dst_prefix_length))
{
vec_validate_acl_rules (rules, rule_idx);
ip_address_encode (&dst, IP46_TYPE_ANY,
&rules[rule_idx].dst_prefix.address);
rules[rule_idx].dst_prefix.address.af = ADDRESS_IP4;
rules[rule_idx].dst_prefix.len = dst_prefix_length;
}
else if (unformat (line_input, "sport %d-%d", &port1, &port2))
{
vec_validate_acl_rules (rules, rule_idx);
rules[rule_idx].srcport_or_icmptype_first = htons (port1);
rules[rule_idx].srcport_or_icmptype_last = htons (port2);
}
else if (unformat (line_input, "sport %d", &port1))
{
vec_validate_acl_rules (rules, rule_idx);
rules[rule_idx].srcport_or_icmptype_first = htons (port1);
rules[rule_idx].srcport_or_icmptype_last = htons (port1);
}
else if (unformat (line_input, "dport %d-%d", &port1, &port2))
{
vec_validate_acl_rules (rules, rule_idx);
rules[rule_idx].dstport_or_icmpcode_first = htons (port1);
rules[rule_idx].dstport_or_icmpcode_last = htons (port2);
}
else if (unformat (line_input, "dport %d", &port1))
{
vec_validate_acl_rules (rules, rule_idx);
rules[rule_idx].dstport_or_icmpcode_first = htons (port1);
rules[rule_idx].dstport_or_icmpcode_last = htons (port1);
}
else if (unformat (line_input, "tcpflags %d %d", &tcpflags, &tcpmask))
{
vec_validate_acl_rules (rules, rule_idx);
rules[rule_idx].tcp_flags_value = tcpflags;
rules[rule_idx].tcp_flags_mask = tcpmask;
}
else
if (unformat (line_input, "tcpflags %d mask %d", &tcpflags, &tcpmask))
{
vec_validate_acl_rules (rules, rule_idx);
rules[rule_idx].tcp_flags_value = tcpflags;
rules[rule_idx].tcp_flags_mask = tcpmask;
}
else if (unformat (line_input, "proto %d", &proto))
{
vec_validate_acl_rules (rules, rule_idx);
rules[rule_idx].proto = proto;
}
else if (unformat (line_input, "tag %s", &tag))
{
}
else if (unformat (line_input, ","))
{
rule_idx++;
vec_validate_acl_rules (rules, rule_idx);
}
else
break;
}
u32 acl_index = ~0;
rv = acl_add_list (vec_len (rules), rules, &acl_index, tag);
vec_free (rules);
if (rv)
return (clib_error_return (0, "failed"));
vlib_cli_output (vm, "ACL index:%d", acl_index);
return (NULL);
}
static clib_error_t *
acl_show_aclplugin_macip_acl_fn (vlib_main_t * vm,
unformat_input_t *
input, vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
acl_main_t *am = &acl_main;
int i;
u32 acl_index = ~0;
(void) unformat (input, "index %u", &acl_index);
for (i = 0; i < vec_len (am->macip_acls); i++)
{
/* Don't attempt to show the ACLs that do not exist */
if (pool_is_free_index (am->macip_acls, i))
continue;
if ((acl_index != ~0) && (acl_index != i))
{
continue;
}
macip_acl_print (am, i);
if (i < vec_len (am->sw_if_index_vec_by_macip_acl))
{
vlib_cli_output (vm, " applied on sw_if_index(s): %U\n",
format_vec32,
vec_elt (am->sw_if_index_vec_by_macip_acl, i),
"%d");
}
}
return error;
}
static clib_error_t *
acl_show_aclplugin_macip_interface_fn (vlib_main_t * vm,
unformat_input_t *
input, vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
acl_main_t *am = &acl_main;
int i;
for (i = 0; i < vec_len (am->macip_acl_by_sw_if_index); i++)
{
vlib_cli_output (vm, " sw_if_index %d: %d\n", i,
vec_elt (am->macip_acl_by_sw_if_index, i));
}
return error;
}
static void
acl_plugin_show_acl (acl_main_t * am, u32 acl_index)
{
u32 i;
vlib_main_t *vm = am->vlib_main;
for (i = 0; i < vec_len (am->acls); i++)
{
if (acl_is_not_defined (am, i))
{
/* don't attempt to show the ACLs that do not exist */
continue;
}
if ((acl_index != ~0) && (acl_index != i))
{
continue;
}
acl_print_acl (vm, am, i);
if (i < vec_len (am->input_sw_if_index_vec_by_acl))
{
vlib_cli_output (vm, " applied inbound on sw_if_index: %U\n",
format_vec32, am->input_sw_if_index_vec_by_acl[i],
"%d");
}
if (i < vec_len (am->output_sw_if_index_vec_by_acl))
{
vlib_cli_output (vm, " applied outbound on sw_if_index: %U\n",
format_vec32, am->output_sw_if_index_vec_by_acl[i],
"%d");
}
if (i < vec_len (am->lc_index_vec_by_acl))
{
vlib_cli_output (vm, " used in lookup context index: %U\n",
format_vec32, am->lc_index_vec_by_acl[i], "%d");
}
}
}
static clib_error_t *
acl_show_aclplugin_acl_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
acl_main_t *am = &acl_main;
u32 acl_index = ~0;
(void) unformat (input, "index %u", &acl_index);
acl_plugin_show_acl (am, acl_index);
return error;
}
static clib_error_t *
acl_show_aclplugin_lookup_context_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
u32 lc_index = ~0;
(void) unformat (input, "index %u", &lc_index);
acl_plugin_show_lookup_context (lc_index);
return error;
}
static clib_error_t *
acl_show_aclplugin_lookup_user_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
u32 lc_index = ~0;
(void) unformat (input, "index %u", &lc_index);
acl_plugin_show_lookup_user (lc_index);
return error;
}
static void
acl_plugin_show_interface (acl_main_t * am, u32 sw_if_index, int show_acl,
int detail)
{
vlib_main_t *vm = am->vlib_main;
u32 swi;
u32 *pj;
for (swi = 0; (swi < vec_len (am->input_acl_vec_by_sw_if_index)) ||
(swi < vec_len (am->output_acl_vec_by_sw_if_index)); swi++)
{
/* if we need a particular interface, skip all the others */
if ((sw_if_index != ~0) && (sw_if_index != swi))
continue;
vlib_cli_output (vm, "sw_if_index %d:\n", swi);
if (swi < vec_len (am->input_policy_epoch_by_sw_if_index))
vlib_cli_output (vm, " input policy epoch: %x\n",
vec_elt (am->input_policy_epoch_by_sw_if_index,
swi));
if (swi < vec_len (am->output_policy_epoch_by_sw_if_index))
vlib_cli_output (vm, " output policy epoch: %x\n",
vec_elt (am->output_policy_epoch_by_sw_if_index,
swi));
if (intf_has_etype_whitelist (am, swi, 1))
{
vlib_cli_output (vm, " input etype whitelist: %U", format_vec16,
am->input_etype_whitelist_by_sw_if_index[swi],
"%04x");
}
if (intf_has_etype_whitelist (am, swi, 0))
{
vlib_cli_output (vm, " output etype whitelist: %U", format_vec16,
am->output_etype_whitelist_by_sw_if_index[swi],
"%04x");
}
if ((swi < vec_len (am->input_acl_vec_by_sw_if_index)) &&
(vec_len (am->input_acl_vec_by_sw_if_index[swi]) > 0))
{
vlib_cli_output (vm, " input acl(s): %U", format_vec32,
am->input_acl_vec_by_sw_if_index[swi], "%d");
if (show_acl)
{
vlib_cli_output (vm, "\n");
vec_foreach (pj, am->input_acl_vec_by_sw_if_index[swi])
{
acl_print_acl (vm, am, *pj);
}
vlib_cli_output (vm, "\n");
}
}
if ((swi < vec_len (am->output_acl_vec_by_sw_if_index)) &&
(vec_len (am->output_acl_vec_by_sw_if_index[swi]) > 0))
{
vlib_cli_output (vm, " output acl(s): %U", format_vec32,
am->output_acl_vec_by_sw_if_index[swi], "%d");
if (show_acl)
{
vlib_cli_output (vm, "\n");
vec_foreach (pj, am->output_acl_vec_by_sw_if_index[swi])
{
acl_print_acl (vm, am, *pj);
}
vlib_cli_output (vm, "\n");
}
}
if (detail && (swi < vec_len (am->input_lc_index_by_sw_if_index)))
{
vlib_cli_output (vm, " input lookup context index: %d",
am->input_lc_index_by_sw_if_index[swi]);
}
if (detail && (swi < vec_len (am->output_lc_index_by_sw_if_index)))
{
vlib_cli_output (vm, " output lookup context index: %d",
am->output_lc_index_by_sw_if_index[swi]);
}
}
}
static clib_error_t *
acl_show_aclplugin_decode_5tuple_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
u64 five_tuple[6] = { 0, 0, 0, 0, 0, 0 };
if (unformat
(input, "%llx %llx %llx %llx %llx %llx", &five_tuple[0], &five_tuple[1],
&five_tuple[2], &five_tuple[3], &five_tuple[4], &five_tuple[5]))
vlib_cli_output (vm, "5-tuple structure decode: %U\n\n",
format_acl_plugin_5tuple, five_tuple);
else
error = clib_error_return (0, "expecting 6 hex integers");
return error;
}
static clib_error_t *
acl_show_aclplugin_interface_fn (vlib_main_t * vm,
unformat_input_t *
input, vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
acl_main_t *am = &acl_main;
u32 sw_if_index = ~0;
(void) unformat (input, "sw_if_index %u", &sw_if_index);
int show_acl = unformat (input, "acl");
int detail = unformat (input, "detail");
acl_plugin_show_interface (am, sw_if_index, show_acl, detail);
return error;
}
static clib_error_t *
acl_show_aclplugin_memory_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
acl_main_t *am = &acl_main;
vlib_cli_output (vm, "ACL plugin main heap statistics:\n");
if (am->acl_mheap)
{
vlib_cli_output (vm, " %U\n", format_mheap, am->acl_mheap, 1);
}
else
{
vlib_cli_output (vm, " Not initialized\n");
}
vlib_cli_output (vm, "ACL hash lookup support heap statistics:\n");
if (am->hash_lookup_mheap)
{
vlib_cli_output (vm, " %U\n", format_mheap, am->hash_lookup_mheap, 1);
}
else
{
vlib_cli_output (vm, " Not initialized\n");
}
return error;
}
static void
acl_plugin_show_sessions (acl_main_t * am,
u32 show_session_thread_id,
u32 show_session_session_index)
{
vlib_main_t *vm = am->vlib_main;
u16 wk;
vnet_interface_main_t *im = &am->vnet_main->interface_main;
vnet_sw_interface_t *swif;
u64 now = clib_cpu_time_now ();
u64 clocks_per_second = am->vlib_main->clib_time.clocks_per_second;
{
u64 n_adds = am->fa_session_total_adds;
u64 n_dels = am->fa_session_total_dels;
u64 n_deact = am->fa_session_total_deactivations;
vlib_cli_output (vm, "Sessions total: add %lu - del %lu = %lu", n_adds,
n_dels, n_adds - n_dels);
vlib_cli_output (vm, "Sessions active: add %lu - deact %lu = %lu", n_adds,
n_deact, n_adds - n_deact);
vlib_cli_output (vm, "Sessions being purged: deact %lu - del %lu = %lu",
n_deact, n_dels, n_deact - n_dels);
}
vlib_cli_output (vm, "now: %lu clocks per second: %lu", now,
clocks_per_second);
vlib_cli_output (vm, "\n\nPer-thread data:");
for (wk = 0; wk < vec_len (am->per_worker_data); wk++)
{
acl_fa_per_worker_data_t *pw = &am->per_worker_data[wk];
vlib_cli_output (vm, "Thread #%d:", wk);
if (show_session_thread_id == wk
&& show_session_session_index < pool_len (pw->fa_sessions_pool))
{
vlib_cli_output (vm, " session index %u:",
show_session_session_index);
fa_session_t *sess =
pw->fa_sessions_pool + show_session_session_index;
u64 *m = (u64 *) & sess->info;
vlib_cli_output (vm,
" info: %016llx %016llx %016llx %016llx %016llx %016llx",
m[0], m[1], m[2], m[3], m[4], m[5]);
vlib_cli_output (vm, " sw_if_index: %u", sess->sw_if_index);
vlib_cli_output (vm, " tcp_flags_seen: %x",
sess->tcp_flags_seen.as_u16);
vlib_cli_output (vm, " last active time: %lu",
sess->last_active_time);
vlib_cli_output (vm, " thread index: %u", sess->thread_index);
vlib_cli_output (vm, " link enqueue time: %lu",
sess->link_enqueue_time);
vlib_cli_output (vm, " link next index: %u",
sess->link_next_idx);
vlib_cli_output (vm, " link prev index: %u",
sess->link_prev_idx);
vlib_cli_output (vm, " link list id: %u", sess->link_list_id);
}
vlib_cli_output (vm, " connection add/del stats:", wk);
/* *INDENT-OFF* */
pool_foreach (swif, im->sw_interfaces,
({
u32 sw_if_index = swif->sw_if_index;
u64 n_adds =
(sw_if_index < vec_len (pw->fa_session_adds_by_sw_if_index) ?
pw->fa_session_adds_by_sw_if_index[sw_if_index] :
0);
u64 n_dels =
(sw_if_index < vec_len (pw->fa_session_dels_by_sw_if_index) ?
pw->fa_session_dels_by_sw_if_index[sw_if_index] :
0);
u64 n_epoch_changes =
(sw_if_index < vec_len (pw->fa_session_epoch_change_by_sw_if_index) ?
pw->fa_session_epoch_change_by_sw_if_index[sw_if_index] :
0);
vlib_cli_output (vm,
" sw_if_index %d: add %lu - del %lu = %lu; epoch chg: %lu",
sw_if_index,
n_adds,
n_dels,
n_adds -
n_dels,
n_epoch_changes);
}));
/* *INDENT-ON* */
vlib_cli_output (vm, " connection timeout type lists:", wk);
u8 tt = 0;
for (tt = 0; tt < ACL_N_TIMEOUTS; tt++)
{
u32 head_session_index = pw->fa_conn_list_head[tt];
vlib_cli_output (vm, " fa_conn_list_head[%d]: %d", tt,
head_session_index);
if (~0 != head_session_index)
{
fa_session_t *sess = pw->fa_sessions_pool + head_session_index;
vlib_cli_output (vm, " last active time: %lu",
sess->last_active_time);
vlib_cli_output (vm, " link enqueue time: %lu",
sess->link_enqueue_time);
}
}
vlib_cli_output (vm, " Next expiry time: %lu", pw->next_expiry_time);
vlib_cli_output (vm, " Requeue until time: %lu",
pw->requeue_until_time);
vlib_cli_output (vm, " Current time wait interval: %lu",
pw->current_time_wait_interval);
vlib_cli_output (vm, " Count of deleted sessions: %lu",
pw->cnt_deleted_sessions);
vlib_cli_output (vm, " Delete already deleted: %lu",
pw->cnt_already_deleted_sessions);
vlib_cli_output (vm, " Session timers restarted: %lu",
pw->cnt_session_timer_restarted);
vlib_cli_output (vm, " Swipe until this time: %lu",
pw->swipe_end_time);
vlib_cli_output (vm, " sw_if_index serviced bitmap: %U",
format_bitmap_hex, pw->serviced_sw_if_index_bitmap);
vlib_cli_output (vm, " pending clear intfc bitmap : %U",
format_bitmap_hex,
pw->pending_clear_sw_if_index_bitmap);
vlib_cli_output (vm, " clear in progress: %u", pw->clear_in_process);
vlib_cli_output (vm, " interrupt is pending: %d",
pw->interrupt_is_pending);
vlib_cli_output (vm, " interrupt is needed: %d",
pw->interrupt_is_needed);
vlib_cli_output (vm, " interrupt is unwanted: %d",
pw->interrupt_is_unwanted);
vlib_cli_output (vm, " interrupt generation: %d",
pw->interrupt_generation);
vlib_cli_output (vm, " received session change requests: %d",
pw->rcvd_session_change_requests);
vlib_cli_output (vm, " sent session change requests: %d",
pw->sent_session_change_requests);
}
vlib_cli_output (vm, "\n\nConn cleaner thread counters:");
#define _(cnt, desc) vlib_cli_output(vm, " %20lu: %s", am->cnt, desc);
foreach_fa_cleaner_counter;
#undef _
vlib_cli_output (vm, "Interrupt generation: %d",
am->fa_interrupt_generation);
vlib_cli_output (vm,
"Sessions per interval: min %lu max %lu increment: %f ms current: %f ms",
am->fa_min_deleted_sessions_per_interval,
am->fa_max_deleted_sessions_per_interval,
am->fa_cleaner_wait_time_increment * 1000.0,
((f64) am->fa_current_cleaner_timer_wait_interval) *
1000.0 / (f64) vm->clib_time.clocks_per_second);
vlib_cli_output (vm, "Reclassify sessions: %d", am->reclassify_sessions);
}
static clib_error_t *
acl_show_aclplugin_sessions_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
acl_main_t *am = &acl_main;
u32 show_bihash_verbose = 0;
u32 show_session_thread_id = ~0;
u32 show_session_session_index = ~0;
(void) unformat (input, "thread %u index %u", &show_session_thread_id,
&show_session_session_index);
(void) unformat (input, "verbose %u", &show_bihash_verbose);
acl_plugin_show_sessions (am, show_session_thread_id,
show_session_session_index);
show_fa_sessions_hash (vm, show_bihash_verbose);
return error;
}
static clib_error_t *
acl_show_aclplugin_tables_fn (vlib_main_t * vm,
unformat_input_t * input,
vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
u32 acl_index = ~0;
u32 lc_index = ~0;
int show_acl_hash_info = 0;
int show_applied_info = 0;
int show_mask_type = 0;
int show_bihash = 0;
u32 show_bihash_verbose = 0;
if (unformat (input, "acl"))
{
show_acl_hash_info = 1;
/* mask-type is handy to see as well right there */
show_mask_type = 1;
unformat (input, "index %u", &acl_index);
}
else if (unformat (input, "applied"))
{
show_applied_info = 1;
unformat (input, "lc_index %u", &lc_index);
}
else if (unformat (input, "mask"))
{
show_mask_type = 1;
}
else if (unformat (input, "hash"))
{
show_bihash = 1;
unformat (input, "verbose %u", &show_bihash_verbose);
}
if (!
(show_mask_type || show_acl_hash_info || show_applied_info
|| show_bihash))
{
/* if no qualifiers specified, show all */
show_mask_type = 1;
show_acl_hash_info = 1;
show_applied_info = 1;
show_bihash = 1;
}
vlib_cli_output (vm, "Stats counters enabled for interface ACLs: %d",
acl_main.interface_acl_counters_enabled);
if (show_mask_type)
acl_plugin_show_tables_mask_type ();
if (show_acl_hash_info)
acl_plugin_show_tables_acl_hash_info (acl_index);
if (show_applied_info)
acl_plugin_show_tables_applied_info (lc_index);
if (show_bihash)
acl_plugin_show_tables_bihash (show_bihash_verbose);
return error;
}
static clib_error_t *
acl_clear_aclplugin_fn (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
clib_error_t *error = 0;
acl_main_t *am = &acl_main;
vlib_process_signal_event (am->vlib_main, am->fa_cleaner_node_index,
ACL_FA_CLEANER_DELETE_BY_SW_IF_INDEX, ~0);
return error;
}
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (aclplugin_set_command, static) = {
.path = "set acl-plugin",
.short_help = "set acl-plugin session timeout {{udp idle}|tcp {idle|transient}} <seconds>",
.function = acl_set_aclplugin_fn,
};
VLIB_CLI_COMMAND (aclplugin_show_acl_command, static) = {
.path = "show acl-plugin acl",
.short_help = "show acl-plugin acl [index N]",
.function = acl_show_aclplugin_acl_fn,
};
VLIB_CLI_COMMAND (aclplugin_show_lookup_context_command, static) = {
.path = "show acl-plugin lookup context",
.short_help = "show acl-plugin lookup context [index N]",
.function = acl_show_aclplugin_lookup_context_fn,
};
VLIB_CLI_COMMAND (aclplugin_show_lookup_user_command, static) = {
.path = "show acl-plugin lookup user",
.short_help = "show acl-plugin lookup user [index N]",
.function = acl_show_aclplugin_lookup_user_fn,
};
VLIB_CLI_COMMAND (aclplugin_show_decode_5tuple_command, static) = {
.path = "show acl-plugin decode 5tuple",
.short_help = "show acl-plugin decode 5tuple XXXX XXXX XXXX XXXX XXXX XXXX",
.function = acl_show_aclplugin_decode_5tuple_fn,
};
VLIB_CLI_COMMAND (aclplugin_show_interface_command, static) = {
.path = "show acl-plugin interface",
.short_help = "show acl-plugin interface [sw_if_index N] [acl]",
.function = acl_show_aclplugin_interface_fn,
};
VLIB_CLI_COMMAND (aclplugin_show_memory_command, static) = {
.path = "show acl-plugin memory",
.short_help = "show acl-plugin memory",
.function = acl_show_aclplugin_memory_fn,
};
VLIB_CLI_COMMAND (aclplugin_show_sessions_command, static) = {
.path = "show acl-plugin sessions",
.short_help = "show acl-plugin sessions",
.function = acl_show_aclplugin_sessions_fn,
};
VLIB_CLI_COMMAND (aclplugin_show_tables_command, static) = {
.path = "show acl-plugin tables",
.short_help = "show acl-plugin tables [ acl [index N] | applied [ lc_index N ] | mask | hash [verbose N] ]",
.function = acl_show_aclplugin_tables_fn,
};
VLIB_CLI_COMMAND (aclplugin_show_macip_acl_command, static) = {
.path = "show acl-plugin macip acl",
.short_help = "show acl-plugin macip acl [index N]",
.function = acl_show_aclplugin_macip_acl_fn,
};
VLIB_CLI_COMMAND (aclplugin_show_macip_interface_command, static) = {
.path = "show acl-plugin macip interface",
.short_help = "show acl-plugin macip interface",
.function = acl_show_aclplugin_macip_interface_fn,
};
VLIB_CLI_COMMAND (aclplugin_clear_command, static) = {
.path = "clear acl-plugin sessions",
.short_help = "clear acl-plugin sessions",
.function = acl_clear_aclplugin_fn,
};
/*?
* [un]Apply an ACL to an interface.
* The ACL is applied in a given direction, either input or output.
* The ACL being applied must already exist.
*
* @cliexpar
* <b><em> set acl-plugin interface <input|output> acl <index> [del] </b></em>
* @cliexend
?*/
VLIB_CLI_COMMAND (aclplugin_set_interface_command, static) = {
.path = "set acl-plugin interface",
.short_help = "set acl-plugin interface <interface> <input|output> <acl INDEX> [del] ",
.function = acl_set_aclplugin_interface_fn,
};
/*?
* Create an Access Control List (ACL)
* an ACL is composed of more than one Access control element (ACE). Multiple
* ACEs can be specified with this command using a comma separated list.
*
* Each ACE describes a tuple of src+dst IP prefix, ip protocol, src+dst port ranges.
* (the ACL plugin also support ICMP types/codes instead of UDP/TCP ports, but
* this CLI does not).
*
* An ACL can optionally be assigned a 'tag' - which is an identifier understood
* by the client. VPP does not examine it in any way.
*
* @cliexpar
* <b><em> set acl-plugin acl <permit|deny> src <PREFIX> dst <PREFIX> proto <TCP|UDP> sport <X-Y> dport <X-Y> [tag FOO] </b></em>
* @cliexend
?*/
VLIB_CLI_COMMAND (aclplugin_set_acl_command, static) = {
.path = "set acl-plugin acl",
.short_help = "set acl-plugin acl <permit|deny> src <PREFIX> dst <PREFIX> proto X sport X-Y dport X-Y [tag FOO] {use comma separated list for multiple rules}",
.function = acl_set_aclplugin_acl_fn,
};
/* *INDENT-ON* */
static clib_error_t *
acl_plugin_config (vlib_main_t * vm, unformat_input_t * input)
{
acl_main_t *am = &acl_main;
u32 conn_table_hash_buckets;
uword conn_table_hash_memory_size;
u32 conn_table_max_entries;
uword main_heap_size;
uword hash_heap_size;
u32 hash_lookup_hash_buckets;
uword hash_lookup_hash_memory;
u32 reclassify_sessions;
u32 use_tuple_merge;
u32 tuple_merge_split_threshold;
while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
{
if (unformat
(input, "connection hash buckets %d", &conn_table_hash_buckets))
am->fa_conn_table_hash_num_buckets = conn_table_hash_buckets;
else
if (unformat
(input, "connection hash memory %U", unformat_memory_size,
&conn_table_hash_memory_size))
am->fa_conn_table_hash_memory_size = conn_table_hash_memory_size;
else if (unformat (input, "connection count max %d",
&conn_table_max_entries))
am->fa_conn_table_max_entries = conn_table_max_entries;
else
if (unformat
(input, "main heap size %U", unformat_memory_size,
&main_heap_size))
am->acl_mheap_size = main_heap_size;
else
if (unformat
(input, "hash lookup heap size %U", unformat_memory_size,
&hash_heap_size))
am->hash_lookup_mheap_size = hash_heap_size;
else if (unformat (input, "hash lookup hash buckets %d",
&hash_lookup_hash_buckets))
am->hash_lookup_hash_buckets = hash_lookup_hash_buckets;
else
if (unformat
(input, "hash lookup hash memory %U", unformat_memory_size,
&hash_lookup_hash_memory))
am->hash_lookup_hash_memory = hash_lookup_hash_memory;
else if (unformat (input, "use tuple merge %d", &use_tuple_merge))
am->use_tuple_merge = use_tuple_merge;
else
if (unformat
(input, "tuple merge split threshold %d",
&tuple_merge_split_threshold))
am->tuple_merge_split_threshold = tuple_merge_split_threshold;
else if (unformat (input, "reclassify sessions %d",
&reclassify_sessions))
am->reclassify_sessions = reclassify_sessions;
else
return clib_error_return (0, "unknown input '%U'",
format_unformat_error, input);
}
return 0;
}
VLIB_CONFIG_FUNCTION (acl_plugin_config, "acl-plugin");
/* Set up the API message handling tables */
#include <vnet/format_fns.h>
#include <acl/acl.api.c>
static clib_error_t *
acl_init (vlib_main_t * vm)
{
acl_main_t *am = &acl_main;
clib_error_t *error = 0;
clib_memset (am, 0, sizeof (*am));
am->vlib_main = vm;
am->vnet_main = vnet_get_main ();
am->log_default = vlib_log_register_class ("acl_plugin", 0);
/* Ask for a correctly-sized block of API message decode slots */
am->msg_id_base = setup_message_id_table ();
error = acl_plugin_exports_init (&acl_plugin);
if (error)
return error;
am->acl_mheap_size = 0; /* auto size when initializing */
am->hash_lookup_mheap_size = ACL_PLUGIN_HASH_LOOKUP_HEAP_SIZE;
am->hash_lookup_hash_buckets = ACL_PLUGIN_HASH_LOOKUP_HASH_BUCKETS;
am->hash_lookup_hash_memory = ACL_PLUGIN_HASH_LOOKUP_HASH_MEMORY;
am->session_timeout_sec[ACL_TIMEOUT_TCP_TRANSIENT] =
TCP_SESSION_TRANSIENT_TIMEOUT_SEC;
am->session_timeout_sec[ACL_TIMEOUT_TCP_IDLE] =
TCP_SESSION_IDLE_TIMEOUT_SEC;
am->session_timeout_sec[ACL_TIMEOUT_UDP_IDLE] =
UDP_SESSION_IDLE_TIMEOUT_SEC;
am->fa_conn_table_hash_num_buckets =
ACL_FA_CONN_TABLE_DEFAULT_HASH_NUM_BUCKETS;
am->fa_conn_table_hash_memory_size =
ACL_FA_CONN_TABLE_DEFAULT_HASH_MEMORY_SIZE;
am->fa_conn_table_max_entries = ACL_FA_CONN_TABLE_DEFAULT_MAX_ENTRIES;
am->reclassify_sessions = 0;
vlib_thread_main_t *tm = vlib_get_thread_main ();
am->fa_min_deleted_sessions_per_interval =
ACL_FA_DEFAULT_MIN_DELETED_SESSIONS_PER_INTERVAL;
am->fa_max_deleted_sessions_per_interval =
ACL_FA_DEFAULT_MAX_DELETED_SESSIONS_PER_INTERVAL;
am->fa_cleaner_wait_time_increment =
ACL_FA_DEFAULT_CLEANER_WAIT_TIME_INCREMENT;
vec_validate (am->per_worker_data, tm->n_vlib_mains - 1);
{
u16 wk;
for (wk = 0; wk < vec_len (am->per_worker_data); wk++)
{
acl_fa_per_worker_data_t *pw = &am->per_worker_data[wk];
if (tm->n_vlib_mains > 1)
{
clib_spinlock_init (&pw->pending_session_change_request_lock);
}
vec_validate (pw->expired,
ACL_N_TIMEOUTS *
am->fa_max_deleted_sessions_per_interval);
_vec_len (pw->expired) = 0;
vec_validate_init_empty (pw->fa_conn_list_head, ACL_N_TIMEOUTS - 1,
FA_SESSION_BOGUS_INDEX);
vec_validate_init_empty (pw->fa_conn_list_tail, ACL_N_TIMEOUTS - 1,
FA_SESSION_BOGUS_INDEX);
vec_validate_init_empty (pw->fa_conn_list_head_expiry_time,
ACL_N_TIMEOUTS - 1, ~0ULL);
}
}
am->fa_cleaner_cnt_delete_by_sw_index = 0;
am->fa_cleaner_cnt_delete_by_sw_index_ok = 0;
am->fa_cleaner_cnt_unknown_event = 0;
am->fa_cleaner_cnt_timer_restarted = 0;
am->fa_cleaner_cnt_wait_with_timeout = 0;
#define _(N, v, s) am->fa_ipv6_known_eh_bitmap = clib_bitmap_set(am->fa_ipv6_known_eh_bitmap, v, 1);
foreach_acl_eh
#undef _
am->l4_match_nonfirst_fragment = 1;
/* use the new fancy hash-based matching */
am->use_hash_acl_matching = 1;
/* use tuplemerge by default */
am->use_tuple_merge = 1;
/* Set the default threshold */
am->tuple_merge_split_threshold = TM_SPLIT_THRESHOLD;
am->interface_acl_user_id =
acl_plugin.register_user_module ("interface ACL", "sw_if_index",
"is_input");
am->acl_counter_lock = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
CLIB_CACHE_LINE_BYTES);
am->acl_counter_lock[0] = 0; /* should be no need */
return error;
}
VLIB_INIT_FUNCTION (acl_init);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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