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authorAndrew Yourtchenko <ayourtch@gmail.com>2017-07-27 15:39:50 +0200
committerAndrew Yourtchenko <ayourtch@gmail.com>2017-08-08 10:42:19 +0200
commitbd9c5ffe39e9ce61db95d74d150e07d738f24da1 (patch)
tree6ca1ef9bee832909f43b5cc28df9b8c46b910efe /src
parent8e4222fc7e23a478b021930ade3cb7d20938e398 (diff)
acl-plugin: rework the optimization 7383, fortify acl-plugin memory behavior (VPP-910)
The further prolonged testing from testbed that reported VPP-910 has uncovered a couple of deeper issues with optimization from 7384, and the usage of subscripts rather than vec_elt_at_index() allowed to hide a couple of further errors in the code. Also, the current acl-plugin behavior of using the global heap for its dynamic data is problematic - it makes the troubleshooting much harder by potentially spreading the problem around. Based on this experience, this commits makes a few changes to fix the issues seen, also improving the serviceability of the acl-plugin code for the future: - Use separate mheaps for any ACL-related control plane operations and separate for the hash lookup datastructures, to compartmentalize any memory-related issues for the ACL plugin. - Ensure vec_elt_at_index() usage throughout the hash_lookup.c file. - Use vectors rather than raw memory for storing the "ordinary" ACL rules. - Rework the optimization from 7384 to use a separate tail pointer rather than overloading the "prev" field. - Make get_session_ptr() more conservative and adjust is_valid_session_ptr accordingly Change-Id: Ifda85193f361de5ed3782a4acd39622bd33c5830 Signed-off-by: Andrew Yourtchenko <ayourtch@gmail.com>
Diffstat (limited to 'src')
-rw-r--r--src/plugins/acl/acl.c156
-rw-r--r--src/plugins/acl/acl.h6
-rw-r--r--src/plugins/acl/fa_node.c16
-rw-r--r--src/plugins/acl/hash_lookup.c253
-rw-r--r--src/plugins/acl/hash_lookup_types.h8
5 files changed, 289 insertions, 150 deletions
diff --git a/src/plugins/acl/acl.c b/src/plugins/acl/acl.c
index 6cd2d0c605f..bc38265a6c5 100644
--- a/src/plugins/acl/acl.c
+++ b/src/plugins/acl/acl.c
@@ -83,6 +83,18 @@ VLIB_PLUGIN_REGISTER () = {
};
/* *INDENT-ON* */
+
+static void *
+acl_set_heap(acl_main_t *am)
+{
+ if (0 == am->acl_mheap) {
+ am->acl_mheap = mheap_alloc (0 /* use VM */ , 2 << 29);
+ }
+ void *oldheap = clib_mem_set_heap(am->acl_mheap);
+ return oldheap;
+}
+
+
static void
vl_api_acl_plugin_get_version_t_handler (vl_api_acl_plugin_get_version_t * mp)
{
@@ -130,7 +142,7 @@ acl_add_list (u32 count, vl_api_acl_rule_t rules[],
acl_main_t *am = &acl_main;
acl_list_t *a;
acl_rule_t *r;
- acl_rule_t *acl_new_rules;
+ acl_rule_t *acl_new_rules = 0;
int i;
if (*acl_list_index != ~0)
@@ -139,22 +151,23 @@ acl_add_list (u32 count, vl_api_acl_rule_t rules[],
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 -1;
}
}
+ 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 */
- acl_new_rules = clib_mem_alloc_aligned (sizeof (acl_rule_t) * count,
- CLIB_CACHE_LINE_BYTES);
- if (!acl_new_rules)
- {
- /* Could not allocate rules. New or existing ACL - bail out regardless */
- return -1;
- }
+ if (count > 0)
+ vec_validate(acl_new_rules, count-1);
for (i = 0; i < count; i++)
{
- r = &acl_new_rules[i];
+ r = vec_elt_at_index(acl_new_rules, i);
memset(r, 0, sizeof(*r));
r->is_permit = rules[i].is_permit;
r->is_ipv6 = rules[i].is_ipv6;
@@ -192,13 +205,14 @@ acl_add_list (u32 count, vl_api_acl_rule_t rules[],
a = am->acls + *acl_list_index;
hash_acl_delete(am, *acl_list_index);
/* Get rid of the old rules */
- clib_mem_free (a->rules);
+ if (a->rules)
+ vec_free (a->rules);
}
a->rules = acl_new_rules;
a->count = count;
memcpy (a->tag, tag, sizeof (a->tag));
hash_acl_add(am, *acl_list_index);
-
+ clib_mem_set_heap (oldheap);
return 0;
}
@@ -226,6 +240,7 @@ acl_del_list (u32 acl_list_index)
}
}
+ void *oldheap = acl_set_heap(am);
/* delete any references to the ACL */
for (i = 0; i < vec_len (am->output_acl_vec_by_sw_if_index); i++)
{
@@ -263,10 +278,10 @@ acl_del_list (u32 acl_list_index)
/* now we can delete the ACL itself */
a = &am->acls[acl_list_index];
if (a->rules)
- {
- clib_mem_free (a->rules);
- }
+ vec_free (a->rules);
+
pool_put (am->acls, a);
+ clib_mem_set_heap (oldheap);
return 0;
}
@@ -359,13 +374,15 @@ acl_classify_add_del_table_tiny (vnet_classify_main_t * cm, u8 * mask,
if (0 == match)
match = 1;
-
- return vnet_classify_add_del_table (cm, skip_mask_ptr, nbuckets,
+ 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
@@ -385,12 +402,15 @@ acl_classify_add_del_table_small (vnet_classify_main_t * cm, u8 * mask,
if (0 == match)
match = 1;
- return vnet_classify_add_del_table (cm, skip_mask_ptr, nbuckets,
+ 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 */);
+ return ret;
+ clib_mem_set_heap (oldheap);
}
@@ -400,12 +420,15 @@ acl_unhook_l2_input_classify (acl_main_t * am, u32 sw_if_index)
vnet_classify_main_t *cm = &vnet_classify_main;
u32 ip4_table_index = ~0;
u32 ip6_table_index = ~0;
+ void *oldheap = acl_set_heap(am);
vec_validate_init_empty (am->acl_ip4_input_classify_table_by_sw_if_index,
sw_if_index, ~0);
vec_validate_init_empty (am->acl_ip6_input_classify_table_by_sw_if_index,
sw_if_index, ~0);
+ /* switch to global heap while calling vnet_* functions */
+ clib_mem_set_heap (cm->vlib_main->heap_base);
vnet_l2_input_classify_enable_disable (sw_if_index, 0);
if (am->acl_ip4_input_classify_table_by_sw_if_index[sw_if_index] != ~0)
@@ -428,7 +451,7 @@ acl_unhook_l2_input_classify (acl_main_t * am, u32 sw_if_index)
am->l2_input_classify_next_acl_ip6,
&ip6_table_index, 0);
}
-
+ clib_mem_set_heap (oldheap);
return 0;
}
@@ -438,12 +461,16 @@ acl_unhook_l2_output_classify (acl_main_t * am, u32 sw_if_index)
vnet_classify_main_t *cm = &vnet_classify_main;
u32 ip4_table_index = ~0;
u32 ip6_table_index = ~0;
+ void *oldheap = acl_set_heap(am);
vec_validate_init_empty (am->acl_ip4_output_classify_table_by_sw_if_index,
sw_if_index, ~0);
vec_validate_init_empty (am->acl_ip6_output_classify_table_by_sw_if_index,
sw_if_index, ~0);
+ /* switch to global heap while calling vnet_* functions */
+ clib_mem_set_heap (cm->vlib_main->heap_base);
+
vnet_l2_output_classify_enable_disable (sw_if_index, 0);
if (am->acl_ip4_output_classify_table_by_sw_if_index[sw_if_index] != ~0)
@@ -466,7 +493,7 @@ acl_unhook_l2_output_classify (acl_main_t * am, u32 sw_if_index)
am->l2_output_classify_next_acl_ip6,
&ip6_table_index, 0);
}
-
+ clib_mem_set_heap (oldheap);
return 0;
}
@@ -478,6 +505,8 @@ acl_hook_l2_input_classify (acl_main_t * am, u32 sw_if_index)
u32 ip6_table_index = ~0;
int rv;
+ void *prevheap = clib_mem_set_heap (cm->vlib_main->heap_base);
+
/* in case there were previous tables attached */
acl_unhook_l2_input_classify (am, sw_if_index);
rv =
@@ -486,7 +515,7 @@ acl_hook_l2_input_classify (acl_main_t * am, u32 sw_if_index)
am->l2_input_classify_next_acl_ip4,
&ip4_table_index, 1);
if (rv)
- return rv;
+ goto done;
rv =
acl_classify_add_del_table_tiny (cm, ip6_5tuple_mask,
sizeof (ip6_5tuple_mask) - 1, ~0,
@@ -498,7 +527,7 @@ acl_hook_l2_input_classify (acl_main_t * am, u32 sw_if_index)
sizeof (ip4_5tuple_mask) - 1, ~0,
am->l2_input_classify_next_acl_ip4,
&ip4_table_index, 0);
- return rv;
+ goto done;
}
rv =
vnet_l2_input_classify_set_tables (sw_if_index, ip4_table_index,
@@ -516,7 +545,7 @@ acl_hook_l2_input_classify (acl_main_t * am, u32 sw_if_index)
sizeof (ip4_5tuple_mask) - 1, ~0,
am->l2_input_classify_next_acl_ip4,
&ip4_table_index, 0);
- return rv;
+ goto done;
}
am->acl_ip4_input_classify_table_by_sw_if_index[sw_if_index] =
@@ -525,6 +554,8 @@ acl_hook_l2_input_classify (acl_main_t * am, u32 sw_if_index)
ip6_table_index;
vnet_l2_input_classify_enable_disable (sw_if_index, 1);
+done:
+ clib_mem_set_heap (prevheap);
return rv;
}
@@ -536,6 +567,8 @@ acl_hook_l2_output_classify (acl_main_t * am, u32 sw_if_index)
u32 ip6_table_index = ~0;
int rv;
+ void *prevheap = clib_mem_set_heap (cm->vlib_main->heap_base);
+
/* in case there were previous tables attached */
acl_unhook_l2_output_classify (am, sw_if_index);
rv =
@@ -544,7 +577,7 @@ acl_hook_l2_output_classify (acl_main_t * am, u32 sw_if_index)
am->l2_output_classify_next_acl_ip4,
&ip4_table_index, 1);
if (rv)
- return rv;
+ goto done;
rv =
acl_classify_add_del_table_tiny (cm, ip6_5tuple_mask,
sizeof (ip6_5tuple_mask) - 1, ~0,
@@ -556,7 +589,7 @@ acl_hook_l2_output_classify (acl_main_t * am, u32 sw_if_index)
sizeof (ip4_5tuple_mask) - 1, ~0,
am->l2_output_classify_next_acl_ip4,
&ip4_table_index, 0);
- return rv;
+ goto done;
}
rv =
vnet_l2_output_classify_set_tables (sw_if_index, ip4_table_index,
@@ -574,7 +607,7 @@ acl_hook_l2_output_classify (acl_main_t * am, u32 sw_if_index)
sizeof (ip4_5tuple_mask) - 1, ~0,
am->l2_output_classify_next_acl_ip4,
&ip4_table_index, 0);
- return rv;
+ goto done;
}
am->acl_ip4_output_classify_table_by_sw_if_index[sw_if_index] =
@@ -583,6 +616,8 @@ acl_hook_l2_output_classify (acl_main_t * am, u32 sw_if_index)
ip6_table_index;
vnet_l2_output_classify_enable_disable (sw_if_index, 1);
+done:
+ clib_mem_set_heap (prevheap);
return rv;
}
@@ -653,6 +688,7 @@ acl_interface_add_inout_acl (u32 sw_if_index, u8 is_input, u32 acl_list_index)
/* ACL is not defined. Can not apply */
return -1;
}
+ void *oldheap = acl_set_heap(am);
if (is_input)
{
@@ -663,6 +699,7 @@ acl_interface_add_inout_acl (u32 sw_if_index, u8 is_input, u32 acl_list_index)
clib_warning("ACL %d is already applied inbound on sw_if_index %d (index %d)",
acl_list_index, sw_if_index, index);
/* the entry is already there */
+ clib_mem_set_heap (oldheap);
return -1;
}
/* if there was no ACL applied before, enable the ACL processing */
@@ -684,6 +721,7 @@ acl_interface_add_inout_acl (u32 sw_if_index, u8 is_input, u32 acl_list_index)
clib_warning("ACL %d is already applied outbound on sw_if_index %d (index %d)",
acl_list_index, sw_if_index, index);
/* the entry is already there */
+ clib_mem_set_heap (oldheap);
return -1;
}
/* if there was no ACL applied before, enable the ACL processing */
@@ -696,6 +734,7 @@ acl_interface_add_inout_acl (u32 sw_if_index, u8 is_input, u32 acl_list_index)
vec_add (am->output_sw_if_index_vec_by_acl[acl_list_index], &sw_if_index,
1);
}
+ clib_mem_set_heap (oldheap);
return 0;
}
@@ -706,6 +745,7 @@ acl_interface_del_inout_acl (u32 sw_if_index, u8 is_input, u32 acl_list_index)
acl_main_t *am = &acl_main;
int i;
int rv = -1;
+ void *oldheap = acl_set_heap(am);
if (is_input)
{
vec_validate (am->input_acl_vec_by_sw_if_index, sw_if_index);
@@ -764,6 +804,7 @@ acl_interface_del_inout_acl (u32 sw_if_index, u8 is_input, u32 acl_list_index)
acl_interface_out_enable_disable (am, sw_if_index, 0);
}
}
+ clib_mem_set_heap (oldheap);
return rv;
}
@@ -772,6 +813,7 @@ acl_interface_reset_inout_acls (u32 sw_if_index, u8 is_input)
{
acl_main_t *am = &acl_main;
int i;
+ void *oldheap = acl_set_heap(am);
if (is_input)
{
vec_validate (am->input_acl_vec_by_sw_if_index, sw_if_index);
@@ -812,6 +854,7 @@ acl_interface_reset_inout_acls (u32 sw_if_index, u8 is_input)
vec_reset_length (am->output_acl_vec_by_sw_if_index[sw_if_index]);
}
+ clib_mem_set_heap (oldheap);
}
static int
@@ -820,6 +863,7 @@ acl_interface_add_del_inout_acl (u32 sw_if_index, u8 is_add, u8 is_input,
{
int rv = -1;
acl_main_t *am = &acl_main;
+ void *oldheap = acl_set_heap(am);
if (is_add)
{
rv =
@@ -835,6 +879,7 @@ acl_interface_add_del_inout_acl (u32 sw_if_index, u8 is_add, u8 is_input,
rv =
acl_interface_del_inout_acl (sw_if_index, is_input, acl_list_index);
}
+ clib_mem_set_heap (oldheap);
return rv;
}
@@ -1015,6 +1060,7 @@ macip_create_classify_tables (acl_main_t * am, u32 macip_acl_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);
/* add session to table mvec[match_type_index].table_index; */
vnet_classify_add_del_session (cm, mvec[match_type_index].table_index,
mask, a->rules[i].is_permit ? ~0 : 0, i,
@@ -1066,17 +1112,15 @@ macip_acl_add_list (u32 count, vl_api_macip_acl_rule_t rules[],
acl_main_t *am = &acl_main;
macip_acl_list_t *a;
macip_acl_rule_t *r;
- macip_acl_rule_t *acl_new_rules;
+ macip_acl_rule_t *acl_new_rules = 0;
int i;
-
+ if (0 == count) {
+ clib_warning("acl-plugin-warning: Trying to create empty MACIP ACL (tag %s)", tag);
+ }
+ void *oldheap = acl_set_heap(am);
/* Create and populate the rules */
- acl_new_rules = clib_mem_alloc_aligned (sizeof (macip_acl_rule_t) * count,
- CLIB_CACHE_LINE_BYTES);
- if (!acl_new_rules)
- {
- /* Could not allocate rules. New or existing ACL - bail out regardless */
- return -1;
- }
+ if (count > 0)
+ vec_validate(acl_new_rules, count-1);
for (i = 0; i < count; i++)
{
@@ -1104,7 +1148,7 @@ macip_acl_add_list (u32 count, vl_api_macip_acl_rule_t rules[],
/* Create and populate the classifer tables */
macip_create_classify_tables (am, *acl_list_index);
-
+ clib_mem_set_heap (oldheap);
return 0;
}
@@ -1117,7 +1161,9 @@ macip_acl_interface_del_acl (acl_main_t * am, u32 sw_if_index)
int rv;
u32 macip_acl_index;
macip_acl_list_t *a;
+ void *oldheap = acl_set_heap(am);
vec_validate_init_empty (am->macip_acl_by_sw_if_index, sw_if_index, ~0);
+ clib_mem_set_heap (oldheap);
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)
@@ -1144,12 +1190,15 @@ macip_acl_interface_add_acl (acl_main_t * am, u32 sw_if_index,
{
return -1;
}
+ void *oldheap = acl_set_heap(am);
a = &am->macip_acls[macip_acl_index];
vec_validate_init_empty (am->macip_acl_by_sw_if_index, sw_if_index, ~0);
/* 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;
+ clib_mem_set_heap (oldheap);
+
/* Apply the classifier tables for L2 ACLs */
rv =
vnet_set_input_acl_intfc (am->vlib_main, sw_if_index, a->ip4_table_index,
@@ -1161,6 +1210,7 @@ static int
macip_acl_del_list (u32 acl_list_index)
{
acl_main_t *am = &acl_main;
+ void *oldheap = acl_set_heap(am);
macip_acl_list_t *a;
int i;
if (pool_is_free_index (am->macip_acls, acl_list_index))
@@ -1184,9 +1234,10 @@ macip_acl_del_list (u32 acl_list_index)
a = &am->macip_acls[acl_list_index];
if (a->rules)
{
- clib_mem_free (a->rules);
+ vec_free (a->rules);
}
pool_put (am->macip_acls, a);
+ clib_mem_set_heap (oldheap);
return 0;
}
@@ -1196,6 +1247,7 @@ macip_acl_interface_add_del_acl (u32 sw_if_index, u8 is_add,
u32 acl_list_index)
{
acl_main_t *am = &acl_main;
+ void *oldheap = acl_set_heap(am);
int rv = -1;
if (is_add)
{
@@ -1205,6 +1257,7 @@ macip_acl_interface_add_del_acl (u32 sw_if_index, u8 is_add,
{
rv = macip_acl_interface_del_acl (am, sw_if_index);
}
+ clib_mem_set_heap (oldheap);
return rv;
}
@@ -1363,6 +1416,7 @@ send_acl_details (acl_main_t * am, unix_shared_memory_queue_t * q,
vl_api_acl_rule_t *rules;
int i;
int msg_size = sizeof (*mp) + sizeof (mp->r[0]) * acl->count;
+ void *oldheap = acl_set_heap(am);
mp = vl_msg_api_alloc (msg_size);
memset (mp, 0, msg_size);
@@ -1381,6 +1435,7 @@ send_acl_details (acl_main_t * am, unix_shared_memory_queue_t * q,
}
clib_warning("Sending acl details for ACL index %d", ntohl(mp->acl_index));
+ clib_mem_set_heap (oldheap);
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
@@ -1439,6 +1494,7 @@ send_acl_interface_list_details (acl_main_t * am,
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);
@@ -1469,7 +1525,7 @@ send_acl_interface_list_details (acl_main_t * am,
mp->acls[n_input + i] =
htonl (am->output_acl_vec_by_sw_if_index[sw_if_index][i]);
}
-
+ clib_mem_set_heap (oldheap);
vl_msg_api_send_shmem (q, (u8 *) & mp);
}
@@ -1784,6 +1840,7 @@ 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);
@@ -2104,6 +2161,21 @@ acl_show_aclplugin_fn (vlib_main_t * vm,
vlib_cli_output(vm, "\n%s\n", out0);
vec_free(out0);
}
+ else if (unformat (input, "memory"))
+ {
+ 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");
+ }
+ }
else if (unformat (input, "tables"))
{
ace_mask_type_entry_t *mte;
@@ -2198,9 +2270,9 @@ acl_show_aclplugin_fn (vlib_main_t * vm,
out0 = format(out0, " input lookup applied entries:\n");
for(j=0; j<vec_len(am->input_hash_entry_vec_by_sw_if_index[swi]); j++) {
applied_hash_ace_entry_t *pae = &am->input_hash_entry_vec_by_sw_if_index[swi][j];
- out0 = format(out0, " %4d: acl %d rule %d action %d bitmask-ready rule %d next %d prev %d\n",
+ out0 = format(out0, " %4d: acl %d rule %d action %d bitmask-ready rule %d next %d prev %d tail %d\n",
j, pae->acl_index, pae->ace_index, pae->action, pae->hash_ace_info_index,
- pae->next_applied_entry_index, pae->prev_applied_entry_index);
+ pae->next_applied_entry_index, pae->prev_applied_entry_index, pae->tail_applied_entry_index);
}
}
@@ -2212,9 +2284,9 @@ acl_show_aclplugin_fn (vlib_main_t * vm,
out0 = format(out0, " output lookup applied entries:\n");
for(j=0; j<vec_len(am->output_hash_entry_vec_by_sw_if_index[swi]); j++) {
applied_hash_ace_entry_t *pae = &am->output_hash_entry_vec_by_sw_if_index[swi][j];
- out0 = format(out0, " %4d: acl %d rule %d action %d bitmask-ready rule %d next %d prev %d\n",
+ out0 = format(out0, " %4d: acl %d rule %d action %d bitmask-ready rule %d next %d prev %d tail %d\n",
j, pae->acl_index, pae->ace_index, pae->action, pae->hash_ace_info_index,
- pae->next_applied_entry_index, pae->prev_applied_entry_index);
+ pae->next_applied_entry_index, pae->prev_applied_entry_index, pae->tail_applied_entry_index);
}
}
@@ -2288,6 +2360,7 @@ acl_init (vlib_main_t * vm)
vec_free (name);
acl_setup_fa_nodes();
+
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;
@@ -2329,7 +2402,6 @@ acl_init (vlib_main_t * vm)
am->l4_match_nonfirst_fragment = 1;
/* use the new fancy hash-based matching */
- // NOT IMMEDIATELY
am->use_hash_acl_matching = 1;
return error;
diff --git a/src/plugins/acl/acl.h b/src/plugins/acl/acl.h
index b84ed7a42dc..14c6129c07f 100644
--- a/src/plugins/acl/acl.h
+++ b/src/plugins/acl/acl.h
@@ -122,12 +122,18 @@ typedef struct
} ace_mask_type_entry_t;
typedef struct {
+ /* mheap to hold all the ACL module related allocations, other than hash */
+ void *acl_mheap;
+
/* API message ID base */
u16 msg_id_base;
acl_list_t *acls; /* Pool of ACLs */
hash_acl_info_t *hash_acl_infos; /* corresponding hash matching housekeeping info */
clib_bihash_48_8_t acl_lookup_hash; /* ACL lookup hash table. */
+
+ /* mheap to hold all the miscellaneous allocations related to hash-based lookups */
+ void *hash_lookup_mheap;
int acl_lookup_hash_initialized;
applied_hash_ace_entry_t **input_hash_entry_vec_by_sw_if_index;
applied_hash_ace_entry_t **output_hash_entry_vec_by_sw_if_index;
diff --git a/src/plugins/acl/fa_node.c b/src/plugins/acl/fa_node.c
index a2ba61ba520..ab5db80bf70 100644
--- a/src/plugins/acl/fa_node.c
+++ b/src/plugins/acl/fa_node.c
@@ -621,14 +621,14 @@ acl_fa_verify_init_sessions (acl_main_t * am)
static inline fa_session_t *get_session_ptr(acl_main_t *am, u16 thread_index, u32 session_index)
{
acl_fa_per_worker_data_t *pw = &am->per_worker_data[thread_index];
- fa_session_t *sess = pw->fa_sessions_pool + session_index;
+ fa_session_t *sess = pool_is_free_index (pw->fa_sessions_pool, session_index) ? 0 : pool_elt_at_index(pw->fa_sessions_pool, session_index);
return sess;
}
static inline int is_valid_session_ptr(acl_main_t *am, u16 thread_index, fa_session_t *sess)
{
acl_fa_per_worker_data_t *pw = &am->per_worker_data[thread_index];
- return ((sess - pw->fa_sessions_pool) < pool_len(pw->fa_sessions_pool));
+ return ((sess != 0) && ((sess - pw->fa_sessions_pool) < pool_len(pw->fa_sessions_pool)));
}
static void
@@ -731,6 +731,7 @@ acl_fa_track_session (acl_main_t * am, int is_input, u32 sw_if_index, u64 now,
static void
acl_fa_delete_session (acl_main_t * am, u32 sw_if_index, fa_full_session_id_t sess_id)
{
+ void *oldheap = clib_mem_set_heap(am->acl_mheap);
fa_session_t *sess = get_session_ptr(am, sess_id.thread_index, sess_id.session_index);
ASSERT(sess->thread_index == os_get_thread_index ());
BV (clib_bihash_add_del) (&am->fa_sessions_hash,
@@ -740,6 +741,7 @@ acl_fa_delete_session (acl_main_t * am, u32 sw_if_index, fa_full_session_id_t se
/* Deleting from timer structures not needed,
as the caller must have dealt with the timers. */
vec_validate (pw->fa_session_dels_by_sw_if_index, sw_if_index);
+ clib_mem_set_heap (oldheap);
pw->fa_session_dels_by_sw_if_index[sw_if_index]++;
clib_smp_atomic_add(&am->fa_session_total_dels, 1);
}
@@ -877,6 +879,7 @@ acl_fa_add_session (acl_main_t * am, int is_input, u32 sw_if_index, u64 now,
clib_bihash_kv_40_8_t kv;
fa_full_session_id_t f_sess_id;
uword thread_index = os_get_thread_index();
+ void *oldheap = clib_mem_set_heap(am->acl_mheap);
acl_fa_per_worker_data_t *pw = &am->per_worker_data[thread_index];
f_sess_id.thread_index = thread_index;
@@ -909,6 +912,7 @@ acl_fa_add_session (acl_main_t * am, int is_input, u32 sw_if_index, u64 now,
acl_fa_conn_list_add_session(am, f_sess_id, now);
vec_validate (pw->fa_session_adds_by_sw_if_index, sw_if_index);
+ clib_mem_set_heap (oldheap);
pw->fa_session_adds_by_sw_if_index[sw_if_index]++;
clib_smp_atomic_add(&am->fa_session_total_adds, 1);
}
@@ -1621,8 +1625,10 @@ acl_fa_enable_disable (u32 sw_if_index, int is_input, int enable_disable)
if (enable_disable) {
acl_fa_verify_init_sessions(am);
am->fa_total_enabled_count++;
+ 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_RESCHEDULE, 0);
+ clib_mem_set_heap (oldheap);
} else {
am->fa_total_enabled_count--;
}
@@ -1630,10 +1636,12 @@ acl_fa_enable_disable (u32 sw_if_index, int is_input, int enable_disable)
if (is_input)
{
ASSERT(clib_bitmap_get(am->fa_in_acl_on_sw_if_index, sw_if_index) != enable_disable);
+ void *oldheap = clib_mem_set_heap (am->vlib_main->heap_base);
vnet_feature_enable_disable ("ip4-unicast", "acl-plugin-in-ip4-fa",
sw_if_index, enable_disable, 0, 0);
vnet_feature_enable_disable ("ip6-unicast", "acl-plugin-in-ip6-fa",
sw_if_index, enable_disable, 0, 0);
+ clib_mem_set_heap (oldheap);
am->fa_in_acl_on_sw_if_index =
clib_bitmap_set (am->fa_in_acl_on_sw_if_index, sw_if_index,
enable_disable);
@@ -1641,10 +1649,12 @@ acl_fa_enable_disable (u32 sw_if_index, int is_input, int enable_disable)
else
{
ASSERT(clib_bitmap_get(am->fa_out_acl_on_sw_if_index, sw_if_index) != enable_disable);
+ void *oldheap = clib_mem_set_heap (am->vlib_main->heap_base);
vnet_feature_enable_disable ("ip4-output", "acl-plugin-out-ip4-fa",
sw_if_index, enable_disable, 0, 0);
vnet_feature_enable_disable ("ip6-output", "acl-plugin-out-ip6-fa",
sw_if_index, enable_disable, 0, 0);
+ clib_mem_set_heap (oldheap);
am->fa_out_acl_on_sw_if_index =
clib_bitmap_set (am->fa_out_acl_on_sw_if_index, sw_if_index,
enable_disable);
@@ -1655,9 +1665,11 @@ acl_fa_enable_disable (u32 sw_if_index, int is_input, int enable_disable)
#ifdef FA_NODE_VERBOSE_DEBUG
clib_warning("ENABLE-DISABLE: clean the connections on interface %d", sw_if_index);
#endif
+ 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);
}
}
diff --git a/src/plugins/acl/hash_lookup.c b/src/plugins/acl/hash_lookup.c
index 027dabd0e6a..a337eb84586 100644
--- a/src/plugins/acl/hash_lookup.c
+++ b/src/plugins/acl/hash_lookup.c
@@ -33,6 +33,16 @@
#include "hash_lookup.h"
#include "hash_lookup_private.h"
+
+static inline applied_hash_ace_entry_t **get_applied_hash_aces(acl_main_t *am, int is_input, u32 sw_if_index)
+{
+ applied_hash_ace_entry_t **applied_hash_aces = is_input ? vec_elt_at_index(am->input_hash_entry_vec_by_sw_if_index, sw_if_index)
+ : vec_elt_at_index(am->output_hash_entry_vec_by_sw_if_index, sw_if_index);
+ return applied_hash_aces;
+}
+
+
+
/*
* This returns true if there is indeed a match on the portranges.
* With all these levels of indirections, this is not going to be very fast,
@@ -41,11 +51,10 @@
static int
match_portranges(acl_main_t *am, fa_5tuple_t *match, u32 index)
{
- applied_hash_ace_entry_t **applied_hash_aces = match->pkt.is_input ? &am->input_hash_entry_vec_by_sw_if_index[match->pkt.sw_if_index] :
- &am->output_hash_entry_vec_by_sw_if_index[match->pkt.sw_if_index];
- applied_hash_ace_entry_t *pae = &((*applied_hash_aces)[index]);
- // hash_acl_info_t *ha = &am->hash_acl_infos[pae->acl_index];
+ applied_hash_ace_entry_t **applied_hash_aces = get_applied_hash_aces(am, match->pkt.is_input, match->pkt.sw_if_index);
+ applied_hash_ace_entry_t *pae = vec_elt_at_index((*applied_hash_aces), index);
+
acl_rule_t *r = &(am->acls[pae->acl_index].rules[pae->ace_index]);
DBG("PORTMATCH: %d <= %d <= %d && %d <= %d <= %d ?",
r->src_port_or_type_first, match->l4.port[0], r->src_port_or_type_last,
@@ -70,8 +79,7 @@ multi_acl_match_get_applied_ace_index(acl_main_t *am, fa_5tuple_t *match)
u32 sw_if_index = match->pkt.sw_if_index;
u8 is_input = match->pkt.is_input;
- applied_hash_ace_entry_t **applied_hash_aces = is_input ? &am->input_hash_entry_vec_by_sw_if_index[sw_if_index] :
- &am->output_hash_entry_vec_by_sw_if_index[sw_if_index];
+ applied_hash_ace_entry_t **applied_hash_aces = get_applied_hash_aces(am, is_input, sw_if_index);
applied_hash_acl_info_t **applied_hash_acls = is_input ? &am->input_applied_hash_acl_info_by_sw_if_index :
&am->output_applied_hash_acl_info_by_sw_if_index;
@@ -79,11 +87,11 @@ multi_acl_match_get_applied_ace_index(acl_main_t *am, fa_5tuple_t *match)
pmatch[0], pmatch[1], pmatch[2], pmatch[3], pmatch[4], pmatch[5]);
for(mask_type_index=0; mask_type_index < pool_len(am->ace_mask_type_pool); mask_type_index++) {
- if (!clib_bitmap_get((*applied_hash_acls)[sw_if_index].mask_type_index_bitmap, mask_type_index)) {
+ if (!clib_bitmap_get(vec_elt_at_index((*applied_hash_acls), sw_if_index)->mask_type_index_bitmap, mask_type_index)) {
/* This bit is not set. Avoid trying to match */
continue;
}
- ace_mask_type_entry_t *mte = &am->ace_mask_type_pool[mask_type_index];
+ ace_mask_type_entry_t *mte = vec_elt_at_index(am->ace_mask_type_pool, mask_type_index);
pmatch = (u64 *)match;
pmask = (u64 *)&mte->mask;
pkey = (u64 *)kv.key;
@@ -120,7 +128,7 @@ multi_acl_match_get_applied_ace_index(acl_main_t *am, fa_5tuple_t *match)
u32 curr_index = result_val->applied_entry_index;
while ((curr_index != ~0) && !match_portranges(am, match, curr_index)) {
/* while no match and there are more entries, walk... */
- applied_hash_ace_entry_t *pae = &((*applied_hash_aces)[curr_index]);
+ applied_hash_ace_entry_t *pae = vec_elt_at_index((*applied_hash_aces),curr_index);
DBG("entry %d did not portmatch, advancing to %d", curr_index, pae->next_applied_entry_index);
curr_index = pae->next_applied_entry_index;
}
@@ -153,9 +161,9 @@ multi_acl_match_get_applied_ace_index(acl_main_t *am, fa_5tuple_t *match)
static void
hashtable_add_del(acl_main_t *am, clib_bihash_kv_48_8_t *kv, int is_add)
{
- DBG("HASH ADD/DEL: %016llx %016llx %016llx %016llx %016llx %016llx add %d",
+ DBG("HASH ADD/DEL: %016llx %016llx %016llx %016llx %016llx %016llx %016llx add %d",
kv->key[0], kv->key[1], kv->key[2],
- kv->key[3], kv->key[4], kv->key[5], is_add);
+ kv->key[3], kv->key[4], kv->key[5], kv->value, is_add);
BV (clib_bihash_add_del) (&am->acl_lookup_hash, kv, is_add);
}
@@ -167,17 +175,17 @@ fill_applied_hash_ace_kv(acl_main_t *am,
{
fa_5tuple_t *kv_key = (fa_5tuple_t *)kv->key;
hash_acl_lookup_value_t *kv_val = (hash_acl_lookup_value_t *)&kv->value;
- applied_hash_ace_entry_t *pae = &((*applied_hash_aces)[new_index]);
- hash_acl_info_t *ha = &am->hash_acl_infos[pae->acl_index];
+ applied_hash_ace_entry_t *pae = vec_elt_at_index((*applied_hash_aces), new_index);
+ hash_acl_info_t *ha = vec_elt_at_index(am->hash_acl_infos, pae->acl_index);
- memcpy(kv_key, &ha->rules[pae->hash_ace_info_index].match, sizeof(*kv_key));
+ memcpy(kv_key, &(vec_elt_at_index(ha->rules, pae->hash_ace_info_index)->match), sizeof(*kv_key));
/* initialize the sw_if_index and direction */
kv_key->pkt.sw_if_index = sw_if_index;
kv_key->pkt.is_input = is_input;
kv_val->as_u64 = 0;
kv_val->applied_entry_index = new_index;
- kv_val->need_portrange_check = ha->rules[pae->hash_ace_info_index].src_portrange_not_powerof2 ||
- ha->rules[pae->hash_ace_info_index].dst_portrange_not_powerof2;
+ kv_val->need_portrange_check = vec_elt_at_index(ha->rules, pae->hash_ace_info_index)->src_portrange_not_powerof2 ||
+ vec_elt_at_index(ha->rules, pae->hash_ace_info_index)->dst_portrange_not_powerof2;
/* by default assume all values are shadowed -> check all mask types */
kv_val->shadowed = 1;
}
@@ -203,7 +211,9 @@ activate_applied_ace_hash_entry(acl_main_t *am,
u32 new_index)
{
clib_bihash_kv_48_8_t kv;
- applied_hash_ace_entry_t *pae = &((*applied_hash_aces)[new_index]);
+ ASSERT(new_index != ~0);
+ applied_hash_ace_entry_t *pae = vec_elt_at_index((*applied_hash_aces), new_index);
+ DBG("activate_applied_ace_hash_entry sw_if_index %d is_input %d new_index %d", sw_if_index, is_input, new_index);
fill_applied_hash_ace_kv(am, applied_hash_aces, sw_if_index, is_input, new_index, &kv);
@@ -214,28 +224,28 @@ activate_applied_ace_hash_entry(acl_main_t *am,
clib_bihash_kv_48_8_t result;
hash_acl_lookup_value_t *result_val = (hash_acl_lookup_value_t *)&result.value;
int res = BV (clib_bihash_search) (&am->acl_lookup_hash, &kv, &result);
+ ASSERT(new_index != ~0);
+ ASSERT(new_index < vec_len((*applied_hash_aces)));
if (res == 0) {
/* There already exists an entry or more. Append at the end. */
u32 first_index = result_val->applied_entry_index;
- DBG("A key already exists, with applied entry index: %d", existing_index);
ASSERT(first_index != ~0);
- applied_hash_ace_entry_t *first_pae = &((*applied_hash_aces)[first_index]);
- /* move to "prev" by one, this should land us in the end of the list */
- u32 last_index = first_pae->prev_applied_entry_index;
+ DBG("A key already exists, with applied entry index: %d", first_index);
+ applied_hash_ace_entry_t *first_pae = vec_elt_at_index((*applied_hash_aces), first_index);
+ u32 last_index = first_pae->tail_applied_entry_index;
ASSERT(last_index != ~0);
- applied_hash_ace_entry_t *last_pae = &((*applied_hash_aces)[last_index]);
- ASSERT(last_pae->next_applied_entry_index == ~0);
+ applied_hash_ace_entry_t *last_pae = vec_elt_at_index((*applied_hash_aces), last_index);
+ DBG("...advance to chained entry index: %d", last_index);
/* link ourseves in */
last_pae->next_applied_entry_index = new_index;
pae->prev_applied_entry_index = last_index;
- /* make a new reference from the very first element to new tail */
- first_pae->prev_applied_entry_index = new_index;
+ /* adjust the pointer to the new tail */
+ first_pae->tail_applied_entry_index = new_index;
} else {
/* It's the very first entry */
hashtable_add_del(am, &kv, 1);
- pae->is_first_entry = 1;
- /* we are the tail */
- pae->prev_applied_entry_index = new_index;
+ ASSERT(new_index != ~0);
+ pae->tail_applied_entry_index = new_index;
}
}
@@ -254,31 +264,44 @@ applied_hash_entries_analyze(acl_main_t *am, applied_hash_ace_entry_t **applied_
*/
}
+static void *
+hash_acl_set_heap(acl_main_t *am)
+{
+ if (0 == am->hash_lookup_mheap) {
+ am->hash_lookup_mheap = mheap_alloc (0 /* use VM */ , 2 << 25);
+ }
+ void *oldheap = clib_mem_set_heap(am->hash_lookup_mheap);
+ return oldheap;
+}
+
void
hash_acl_apply(acl_main_t *am, u32 sw_if_index, u8 is_input, int acl_index)
{
int i;
DBG("HASH ACL apply: sw_if_index %d is_input %d acl %d", sw_if_index, is_input, acl_index);
- u32 *acl_vec = is_input ? am->input_acl_vec_by_sw_if_index[sw_if_index] :
- am->output_acl_vec_by_sw_if_index[sw_if_index];
+ if (!am->acl_lookup_hash_initialized) {
+ BV (clib_bihash_init) (&am->acl_lookup_hash, "ACL plugin rule lookup bihash",
+ 65536, 2 << 25);
+ am->acl_lookup_hash_initialized = 1;
+ }
+
+ u32 *acl_vec = is_input ? *vec_elt_at_index(am->input_acl_vec_by_sw_if_index, sw_if_index)
+ : *vec_elt_at_index(am->output_acl_vec_by_sw_if_index, sw_if_index);
+
+ void *oldheap = hash_acl_set_heap(am);
if (is_input) {
vec_validate(am->input_hash_entry_vec_by_sw_if_index, sw_if_index);
} else {
vec_validate(am->output_hash_entry_vec_by_sw_if_index, sw_if_index);
}
vec_validate(am->hash_acl_infos, acl_index);
- applied_hash_ace_entry_t **applied_hash_aces = is_input ? &am->input_hash_entry_vec_by_sw_if_index[sw_if_index] :
- &am->output_hash_entry_vec_by_sw_if_index[sw_if_index];
+ applied_hash_ace_entry_t **applied_hash_aces = get_applied_hash_aces(am, is_input, sw_if_index);
+
u32 order_index = vec_search(acl_vec, acl_index);
- hash_acl_info_t *ha = &am->hash_acl_infos[acl_index];
+ hash_acl_info_t *ha = vec_elt_at_index(am->hash_acl_infos, acl_index);
ASSERT(order_index != ~0);
- if (!am->acl_lookup_hash_initialized) {
- BV (clib_bihash_init) (&am->acl_lookup_hash, "ACL plugin rule lookup bihash",
- 65536, 2 << 25);
- am->acl_lookup_hash_initialized = 1;
- }
int base_offset = vec_len(*applied_hash_aces);
/* Update the bitmap of the mask types with which the lookup
@@ -286,7 +309,7 @@ hash_acl_apply(acl_main_t *am, u32 sw_if_index, u8 is_input, int acl_index)
applied_hash_acl_info_t **applied_hash_acls = is_input ? &am->input_applied_hash_acl_info_by_sw_if_index :
&am->output_applied_hash_acl_info_by_sw_if_index;
vec_validate((*applied_hash_acls), sw_if_index);
- applied_hash_acl_info_t *pal = &(*applied_hash_acls)[sw_if_index];
+ applied_hash_acl_info_t *pal = vec_elt_at_index((*applied_hash_acls), sw_if_index);
pal->mask_type_index_bitmap = clib_bitmap_or(pal->mask_type_index_bitmap,
ha->mask_type_index_bitmap);
/*
@@ -305,8 +328,7 @@ hash_acl_apply(acl_main_t *am, u32 sw_if_index, u8 is_input, int acl_index)
/* add the rules from the ACL to the hash table for lookup and append to the vector*/
for(i=0; i < vec_len(ha->rules); i++) {
u32 new_index = base_offset + i;
- applied_hash_ace_entry_t *pae = &((*applied_hash_aces)[new_index]);
- pae->is_first_entry = 0;
+ applied_hash_ace_entry_t *pae = vec_elt_at_index((*applied_hash_aces), new_index);
pae->acl_index = acl_index;
pae->ace_index = ha->rules[i].ace_index;
pae->action = ha->rules[i].action;
@@ -314,9 +336,29 @@ hash_acl_apply(acl_main_t *am, u32 sw_if_index, u8 is_input, int acl_index)
/* we might link it in later */
pae->next_applied_entry_index = ~0;
pae->prev_applied_entry_index = ~0;
+ pae->tail_applied_entry_index = ~0;
activate_applied_ace_hash_entry(am, sw_if_index, is_input, applied_hash_aces, new_index);
}
applied_hash_entries_analyze(am, applied_hash_aces);
+ clib_mem_set_heap (oldheap);
+}
+
+static u32
+find_head_applied_ace_index(applied_hash_ace_entry_t **applied_hash_aces, u32 curr_index)
+{
+ /*
+ * find back the first entry. Inefficient so might need to be a bit cleverer
+ * if this proves to be a problem..
+ */
+ u32 an_index = curr_index;
+ ASSERT(an_index != ~0);
+ applied_hash_ace_entry_t *head_pae = vec_elt_at_index((*applied_hash_aces), an_index);
+ while(head_pae->prev_applied_entry_index != ~0) {
+ an_index = head_pae->prev_applied_entry_index;
+ ASSERT(an_index != ~0);
+ head_pae = vec_elt_at_index((*applied_hash_aces), an_index);
+ }
+ return an_index;
}
static void
@@ -325,43 +367,43 @@ move_applied_ace_hash_entry(acl_main_t *am,
applied_hash_ace_entry_t **applied_hash_aces,
u32 old_index, u32 new_index)
{
+ ASSERT(old_index != ~0);
+ ASSERT(new_index != ~0);
/* move the entry */
- (*applied_hash_aces)[new_index] = (*applied_hash_aces)[old_index];
+ *vec_elt_at_index((*applied_hash_aces), new_index) = *vec_elt_at_index((*applied_hash_aces), old_index);
/* update the linkage and hash table if necessary */
- applied_hash_ace_entry_t *pae = &((*applied_hash_aces)[old_index]);
+ applied_hash_ace_entry_t *pae = vec_elt_at_index((*applied_hash_aces), old_index);
- if (!pae->is_first_entry) {
- applied_hash_ace_entry_t *prev_pae = &((*applied_hash_aces)[pae->prev_applied_entry_index]);
+ if (pae->prev_applied_entry_index != ~0) {
+ applied_hash_ace_entry_t *prev_pae = vec_elt_at_index((*applied_hash_aces), pae->prev_applied_entry_index);
ASSERT(prev_pae->next_applied_entry_index == old_index);
prev_pae->next_applied_entry_index = new_index;
} else {
/* first entry - so the hash points to it, update */
add_del_hashtable_entry(am, sw_if_index, is_input,
applied_hash_aces, new_index, 1);
+ ASSERT(pae->tail_applied_entry_index != ~0);
}
if (pae->next_applied_entry_index != ~0) {
- applied_hash_ace_entry_t *next_pae = &((*applied_hash_aces)[pae->next_applied_entry_index]);
+ applied_hash_ace_entry_t *next_pae = vec_elt_at_index((*applied_hash_aces), pae->next_applied_entry_index);
ASSERT(next_pae->prev_applied_entry_index == old_index);
next_pae->prev_applied_entry_index = new_index;
} else {
/*
* Moving the very last entry, so we need to update the tail pointer in the first one.
- * find back the first entry. Inefficient so might need to be a bit cleverer
- * if this proves to be a problem..
*/
- u32 an_index = pae->prev_applied_entry_index;
- applied_hash_ace_entry_t *head_pae = &((*applied_hash_aces)[pae->prev_applied_entry_index]);
- while(!head_pae->is_first_entry) {
- an_index = head_pae->prev_applied_entry_index;
- head_pae = &((*applied_hash_aces)[an_index]);
- }
- ASSERT(head_pae->prev_applied_entry_index == old_index);
- head_pae->prev_applied_entry_index = new_index;
+ u32 head_index = find_head_applied_ace_index(applied_hash_aces, old_index);
+ ASSERT(head_index != ~0);
+ applied_hash_ace_entry_t *head_pae = vec_elt_at_index((*applied_hash_aces), head_index);
+
+ ASSERT(head_pae->tail_applied_entry_index == old_index);
+ head_pae->tail_applied_entry_index = new_index;
}
/* invalidate the old entry */
pae->prev_applied_entry_index = ~0;
pae->next_applied_entry_index = ~0;
+ pae->tail_applied_entry_index = ~0;
}
static void
@@ -370,39 +412,37 @@ deactivate_applied_ace_hash_entry(acl_main_t *am,
applied_hash_ace_entry_t **applied_hash_aces,
u32 old_index)
{
- applied_hash_ace_entry_t *pae = &((*applied_hash_aces)[old_index]);
-
- if (pae->next_applied_entry_index != ~0) {
- applied_hash_ace_entry_t *next_pae = &((*applied_hash_aces)[pae->next_applied_entry_index]);
- ASSERT(next_pae->prev_applied_entry_index == old_index);
- next_pae->prev_applied_entry_index = pae->prev_applied_entry_index;
- }
+ applied_hash_ace_entry_t *pae = vec_elt_at_index((*applied_hash_aces), old_index);
+ DBG("UNAPPLY DEACTIVATE: sw_if_index %d is_input %d, applied index %d", sw_if_index, is_input, old_index);
- if (!pae->is_first_entry) {
- applied_hash_ace_entry_t *prev_pae = &((*applied_hash_aces)[pae->prev_applied_entry_index]);
+ if (pae->prev_applied_entry_index != ~0) {
+ DBG("UNAPPLY = index %d has prev_applied_entry_index %d", old_index, pae->prev_applied_entry_index);
+ applied_hash_ace_entry_t *prev_pae = vec_elt_at_index((*applied_hash_aces), pae->prev_applied_entry_index);
ASSERT(prev_pae->next_applied_entry_index == old_index);
prev_pae->next_applied_entry_index = pae->next_applied_entry_index;
if (pae->next_applied_entry_index == ~0) {
/* it was a last entry we removed, update the pointer on the first one */
- u32 an_index = pae->prev_applied_entry_index;
- applied_hash_ace_entry_t *head_pae = &((*applied_hash_aces)[pae->prev_applied_entry_index]);
- while(!head_pae->is_first_entry) {
- an_index = head_pae->prev_applied_entry_index;
- head_pae = &((*applied_hash_aces)[an_index]);
- }
- ASSERT(head_pae->prev_applied_entry_index == old_index);
- head_pae->prev_applied_entry_index = pae->prev_applied_entry_index;
+ u32 head_index = find_head_applied_ace_index(applied_hash_aces, old_index);
+ DBG("UNAPPLY = index %d head index to update %d", old_index, head_index);
+ ASSERT(head_index != ~0);
+ applied_hash_ace_entry_t *head_pae = vec_elt_at_index((*applied_hash_aces), head_index);
+
+ ASSERT(head_pae->tail_applied_entry_index == old_index);
+ head_pae->tail_applied_entry_index = pae->prev_applied_entry_index;
+ } else {
+ applied_hash_ace_entry_t *next_pae = vec_elt_at_index((*applied_hash_aces), pae->next_applied_entry_index);
+ next_pae->prev_applied_entry_index = pae->prev_applied_entry_index;
}
} else {
/* It was the first entry. We need either to reset the hash entry or delete it */
- pae->is_first_entry = 0;
if (pae->next_applied_entry_index != ~0) {
- /* a custom case of relinking for the first node, with the tail not forward linked to it */
- applied_hash_ace_entry_t *next_pae = &((*applied_hash_aces)[pae->next_applied_entry_index]);
- /* this is the tail the new head should be aware of */
- next_pae->prev_applied_entry_index = pae->prev_applied_entry_index;
- next_pae->is_first_entry = 1;
-
+ /* the next element becomes the new first one, so needs the tail pointer to be set */
+ applied_hash_ace_entry_t *next_pae = vec_elt_at_index((*applied_hash_aces), pae->next_applied_entry_index);
+ ASSERT(pae->tail_applied_entry_index != ~0);
+ next_pae->tail_applied_entry_index = pae->tail_applied_entry_index;
+ DBG("Resetting the hash table entry from %d to %d, setting tail index to %d", old_index, pae->next_applied_entry_index, pae->tail_applied_entry_index);
+ /* unlink from the next element */
+ next_pae->prev_applied_entry_index = ~0;
add_del_hashtable_entry(am, sw_if_index, is_input,
applied_hash_aces, pae->next_applied_entry_index, 1);
} else {
@@ -411,6 +451,10 @@ deactivate_applied_ace_hash_entry(acl_main_t *am,
applied_hash_aces, old_index, 0);
}
}
+ /* invalidate the old entry */
+ pae->prev_applied_entry_index = ~0;
+ pae->next_applied_entry_index = ~0;
+ pae->tail_applied_entry_index = ~0;
}
@@ -419,14 +463,14 @@ hash_acl_build_applied_lookup_bitmap(acl_main_t *am, u32 sw_if_index, u8 is_inpu
{
int i;
uword *new_lookup_bitmap = 0;
- u32 **applied_acls = is_input ? &am->input_acl_vec_by_sw_if_index[sw_if_index] :
- &am->output_acl_vec_by_sw_if_index[sw_if_index];
- applied_hash_acl_info_t **applied_hash_acls = is_input ? &am->input_applied_hash_acl_info_by_sw_if_index :
- &am->output_applied_hash_acl_info_by_sw_if_index;
- applied_hash_acl_info_t *pal = &(*applied_hash_acls)[sw_if_index];
+ u32 **applied_acls = is_input ? vec_elt_at_index(am->input_acl_vec_by_sw_if_index, sw_if_index)
+ : vec_elt_at_index(am->output_acl_vec_by_sw_if_index, sw_if_index);
+ applied_hash_acl_info_t **applied_hash_acls = is_input ? &am->input_applied_hash_acl_info_by_sw_if_index
+ : &am->output_applied_hash_acl_info_by_sw_if_index;
+ applied_hash_acl_info_t *pal = vec_elt_at_index((*applied_hash_acls), sw_if_index);
for(i=0; i < vec_len(*applied_acls); i++) {
- u32 a_acl_index = (*applied_acls)[i];
- hash_acl_info_t *ha = &am->hash_acl_infos[a_acl_index];
+ u32 a_acl_index = *vec_elt_at_index((*applied_acls), i);
+ hash_acl_info_t *ha = vec_elt_at_index(am->hash_acl_infos, a_acl_index);
new_lookup_bitmap = clib_bitmap_or(new_lookup_bitmap,
ha->mask_type_index_bitmap);
}
@@ -441,12 +485,12 @@ hash_acl_unapply(acl_main_t *am, u32 sw_if_index, u8 is_input, int acl_index)
int i;
DBG("HASH ACL unapply: sw_if_index %d is_input %d acl %d", sw_if_index, is_input, acl_index);
- hash_acl_info_t *ha = &am->hash_acl_infos[acl_index];
- applied_hash_ace_entry_t **applied_hash_aces = is_input ? &am->input_hash_entry_vec_by_sw_if_index[sw_if_index] :
- &am->output_hash_entry_vec_by_sw_if_index[sw_if_index];
+
+ hash_acl_info_t *ha = vec_elt_at_index(am->hash_acl_infos, acl_index);
+ applied_hash_ace_entry_t **applied_hash_aces = get_applied_hash_aces(am, is_input, sw_if_index);
for(i=0; i < vec_len((*applied_hash_aces)); i++) {
- if ((*applied_hash_aces)[i].acl_index == acl_index) {
+ if (vec_elt_at_index(*applied_hash_aces,i)->acl_index == acl_index) {
DBG("Found applied ACL#%d at applied index %d", acl_index, i);
break;
}
@@ -456,13 +500,14 @@ hash_acl_unapply(acl_main_t *am, u32 sw_if_index, u8 is_input, int acl_index)
/* we went all the way without finding any entries. Probably a list was empty. */
return;
}
+
+ void *oldheap = hash_acl_set_heap(am);
int base_offset = i;
int tail_offset = base_offset + vec_len(ha->rules);
int tail_len = vec_len((*applied_hash_aces)) - tail_offset;
DBG("base_offset: %d, tail_offset: %d, tail_len: %d", base_offset, tail_offset, tail_len);
for(i=0; i < vec_len(ha->rules); i ++) {
- DBG("UNAPPLY DEACTIVATE: sw_if_index %d is_input %d, applied index %d", sw_if_index, is_input, base_offset + i);
deactivate_applied_ace_hash_entry(am, sw_if_index, is_input,
applied_hash_aces, base_offset + i);
}
@@ -479,6 +524,7 @@ hash_acl_unapply(acl_main_t *am, u32 sw_if_index, u8 is_input, int acl_index)
/* After deletion we might not need some of the mask-types anymore... */
hash_acl_build_applied_lookup_bitmap(am, sw_if_index, is_input);
+ clib_mem_set_heap (oldheap);
}
/*
@@ -493,8 +539,8 @@ hash_acl_unapply(acl_main_t *am, u32 sw_if_index, u8 is_input, int acl_index)
void
hash_acl_reapply(acl_main_t *am, u32 sw_if_index, u8 is_input, int acl_index)
{
- u32 **applied_acls = is_input ? &am->input_acl_vec_by_sw_if_index[sw_if_index] :
- &am->output_acl_vec_by_sw_if_index[sw_if_index];
+ u32 **applied_acls = is_input ? vec_elt_at_index(am->input_acl_vec_by_sw_if_index, sw_if_index)
+ : vec_elt_at_index(am->output_acl_vec_by_sw_if_index, sw_if_index);
int i;
int start_index = vec_search((*applied_acls), acl_index);
/*
@@ -505,10 +551,10 @@ hash_acl_reapply(acl_main_t *am, u32 sw_if_index, u8 is_input, int acl_index)
/* unapply all the ACLs till the current one */
for(i = vec_len(*applied_acls) - 1; i >= start_index; i--) {
- hash_acl_unapply(am, sw_if_index, is_input, (*applied_acls)[i]);
+ hash_acl_unapply(am, sw_if_index, is_input, *vec_elt_at_index(*applied_acls, i));
}
for(i = start_index; i < vec_len(*applied_acls); i++) {
- hash_acl_apply(am, sw_if_index, is_input, (*applied_acls)[i]);
+ hash_acl_apply(am, sw_if_index, is_input, *vec_elt_at_index(*applied_acls, i));
}
}
@@ -649,7 +695,7 @@ assign_mask_type_index(acl_main_t *am, fa_5tuple_t *mask)
static void
release_mask_type_index(acl_main_t *am, u32 mask_type_index)
{
- ace_mask_type_entry_t *mte = &am->ace_mask_type_pool[mask_type_index];
+ ace_mask_type_entry_t *mte = pool_elt_at_index(am->ace_mask_type_pool, mask_type_index);
mte->refcount--;
if (mte->refcount == 0) {
/* we are not using this entry anymore */
@@ -659,11 +705,12 @@ release_mask_type_index(acl_main_t *am, u32 mask_type_index)
void hash_acl_add(acl_main_t *am, int acl_index)
{
+ void *oldheap = hash_acl_set_heap(am);
DBG("HASH ACL add : %d", acl_index);
int i;
acl_list_t *a = &am->acls[acl_index];
vec_validate(am->hash_acl_infos, acl_index);
- hash_acl_info_t *ha = &am->hash_acl_infos[acl_index];
+ hash_acl_info_t *ha = vec_elt_at_index(am->hash_acl_infos, acl_index);
memset(ha, 0, sizeof(*ha));
/* walk the newly added ACL entries and ensure that for each of them there
@@ -710,10 +757,12 @@ void hash_acl_add(acl_main_t *am, int acl_index)
hash_acl_reapply(am, *sw_if_index, 0, acl_index);
}
}
+ clib_mem_set_heap (oldheap);
}
void hash_acl_delete(acl_main_t *am, int acl_index)
{
+ void *oldheap = hash_acl_set_heap(am);
DBG("HASH ACL delete : %d", acl_index);
/*
* If the ACL is applied somewhere, remove the references of it (call hash_acl_unapply)
@@ -739,12 +788,13 @@ void hash_acl_delete(acl_main_t *am, int acl_index)
/* walk the mask types for the ACL about-to-be-deleted, and decrease
* the reference count, possibly freeing up some of them */
int i;
- hash_acl_info_t *ha = &am->hash_acl_infos[acl_index];
+ hash_acl_info_t *ha = vec_elt_at_index(am->hash_acl_infos, acl_index);
for(i=0; i < vec_len(ha->rules); i++) {
release_mask_type_index(am, ha->rules[i].mask_type_index);
}
clib_bitmap_free(ha->mask_type_index_bitmap);
vec_free(ha->rules);
+ clib_mem_set_heap (oldheap);
}
u8
@@ -753,11 +803,10 @@ hash_multi_acl_match_5tuple (u32 sw_if_index, fa_5tuple_t * pkt_5tuple, int is_l
u32 * rule_match_p, u32 * trace_bitmap)
{
acl_main_t *am = &acl_main;
- applied_hash_ace_entry_t **applied_hash_aces = is_input ? &am->input_hash_entry_vec_by_sw_if_index[sw_if_index] :
- &am->output_hash_entry_vec_by_sw_if_index[sw_if_index];
+ applied_hash_ace_entry_t **applied_hash_aces = get_applied_hash_aces(am, is_input, sw_if_index);
u32 match_index = multi_acl_match_get_applied_ace_index(am, pkt_5tuple);
if (match_index < vec_len((*applied_hash_aces))) {
- applied_hash_ace_entry_t *pae = &((*applied_hash_aces)[match_index]);
+ applied_hash_ace_entry_t *pae = vec_elt_at_index((*applied_hash_aces), match_index);
*acl_match_p = pae->acl_index;
*rule_match_p = pae->ace_index;
return pae->action;
diff --git a/src/plugins/acl/hash_lookup_types.h b/src/plugins/acl/hash_lookup_types.h
index 1848c5ffc6a..fbc9777b83d 100644
--- a/src/plugins/acl/hash_lookup_types.h
+++ b/src/plugins/acl/hash_lookup_types.h
@@ -53,14 +53,14 @@ typedef struct {
*/
u32 next_applied_entry_index;
/*
- * previous entry in the ring list of the chained ones.
+ * previous entry in the list of the chained ones,
+ * if ~0 then this is entry in the hash.
*/
u32 prev_applied_entry_index;
/*
- * 1 if it is the very first entry in the list,
- * referenced from the hash.
+ * chain tail, if this is the first entry
*/
- u8 is_first_entry;
+ u32 tail_applied_entry_index;
/*
* Action of this applied ACE
*/