diff options
Diffstat (limited to 'src/plugins/acl/sess_mgmt_node.c')
| -rw-r--r-- | src/plugins/acl/sess_mgmt_node.c | 806 |
1 files changed, 806 insertions, 0 deletions
diff --git a/src/plugins/acl/sess_mgmt_node.c b/src/plugins/acl/sess_mgmt_node.c new file mode 100644 index 00000000000..b4faf554612 --- /dev/null +++ b/src/plugins/acl/sess_mgmt_node.c @@ -0,0 +1,806 @@ +/* + * Copyright (c) 2016-2018 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include <stddef.h> +#include <netinet/in.h> + +#include <vlib/vlib.h> +#include <vnet/vnet.h> +#include <vnet/pg/pg.h> +#include <vppinfra/error.h> + + +#include <acl/acl.h> +#include <vnet/ip/icmp46_packet.h> + +#include <plugins/acl/fa_node.h> +#include <plugins/acl/acl.h> +#include <plugins/acl/lookup_context.h> +#include <plugins/acl/public_inlines.h> +#include <plugins/acl/session_inlines.h> + +// #include <vppinfra/bihash_40_8.h> + + +static u64 +fa_session_get_shortest_timeout (acl_main_t * am) +{ + int timeout_type; + u64 timeout = ~0LL; + for (timeout_type = 0; timeout_type < ACL_N_TIMEOUTS; timeout_type++) + { + if (timeout > am->session_timeout_sec[timeout_type]) + { + timeout = am->session_timeout_sec[timeout_type]; + } + } + return timeout; +} + +static void +acl_fa_verify_init_sessions (acl_main_t * am) +{ + if (!am->fa_sessions_hash_is_initialized) + { + u16 wk; + /* Allocate the per-worker sessions pools */ + for (wk = 0; wk < vec_len (am->per_worker_data); wk++) + { + acl_fa_per_worker_data_t *pw = &am->per_worker_data[wk]; + + /* + * // In lieu of trying to preallocate the pool and its free bitmap, rather use pool_init_fixed + * pool_alloc_aligned(pw->fa_sessions_pool, am->fa_conn_table_max_entries, CLIB_CACHE_LINE_BYTES); + * clib_bitmap_validate(pool_header(pw->fa_sessions_pool)->free_bitmap, am->fa_conn_table_max_entries); + */ + pool_init_fixed (pw->fa_sessions_pool, + am->fa_conn_table_max_entries); + } + + /* ... and the interface session hash table */ + clib_bihash_init_40_8 (&am->fa_sessions_hash, + "ACL plugin FA session bihash", + am->fa_conn_table_hash_num_buckets, + am->fa_conn_table_hash_memory_size); + am->fa_sessions_hash_is_initialized = 1; + } +} + + +/* + * Get the timeout of the session in a list since its enqueue time. + */ + +static u64 +fa_session_get_list_timeout (acl_main_t * am, fa_session_t * sess) +{ + u64 timeout = am->vlib_main->clib_time.clocks_per_second; + /* + * we have the shortest possible timeout type in all the lists + * (see README-multicore for the rationale) + */ + timeout *= fa_session_get_shortest_timeout (am); + return timeout; +} + +static u64 +acl_fa_get_list_head_expiry_time (acl_main_t * am, + acl_fa_per_worker_data_t * pw, u64 now, + u16 thread_index, int timeout_type) +{ + fa_session_t *sess = + get_session_ptr (am, thread_index, pw->fa_conn_list_head[timeout_type]); + /* + * We can not check just the index here because inbetween the worker thread might + * dequeue the connection from the head just as we are about to check it. + */ + if (!is_valid_session_ptr (am, thread_index, sess)) + { + return ~0LL; // infinity. + } + else + { + u64 timeout_time = + sess->link_enqueue_time + fa_session_get_list_timeout (am, sess); + return timeout_time; + } +} + +static int +acl_fa_conn_time_to_check (acl_main_t * am, acl_fa_per_worker_data_t * pw, + u64 now, u16 thread_index, u32 session_index) +{ + fa_session_t *sess = get_session_ptr (am, thread_index, session_index); + u64 timeout_time = + sess->link_enqueue_time + fa_session_get_list_timeout (am, sess); + return (timeout_time < now) + || (sess->link_enqueue_time <= pw->swipe_end_time); +} + +/* + * see if there are sessions ready to be checked, + * do the maintenance (requeue or delete), and + * return the total number of sessions reclaimed. + */ +static int +acl_fa_check_idle_sessions (acl_main_t * am, u16 thread_index, u64 now) +{ + acl_fa_per_worker_data_t *pw = &am->per_worker_data[thread_index]; + fa_full_session_id_t fsid; + fsid.thread_index = thread_index; + int total_expired = 0; + + { + u8 tt = 0; + for (tt = 0; tt < ACL_N_TIMEOUTS; tt++) + { + while ((vec_len (pw->expired) < + am->fa_max_deleted_sessions_per_interval) + && (~0 != pw->fa_conn_list_head[tt]) + && + (acl_fa_conn_time_to_check + (am, pw, now, thread_index, pw->fa_conn_list_head[tt]))) + { + fsid.session_index = pw->fa_conn_list_head[tt]; + elog_acl_maybe_trace_X2 (am, + "acl_fa_check_idle_sessions: expire session %d on thread %d", + "i4i4", (u32) fsid.session_index, + (u32) thread_index); + vec_add1 (pw->expired, fsid.session_index); + acl_fa_conn_list_delete_session (am, fsid); + } + } + } + + u32 *psid = NULL; + vec_foreach (psid, pw->expired) + { + fsid.session_index = *psid; + if (!pool_is_free_index (pw->fa_sessions_pool, fsid.session_index)) + { + fa_session_t *sess = + get_session_ptr (am, thread_index, fsid.session_index); + u32 sw_if_index = sess->sw_if_index; + u64 sess_timeout_time = + sess->last_active_time + fa_session_get_timeout (am, sess); + if ((now < sess_timeout_time) + && (0 == + clib_bitmap_get (pw->pending_clear_sw_if_index_bitmap, + sw_if_index))) + { +#ifdef FA_NODE_VERBOSE_DEBUG + clib_warning + ("ACL_FA_NODE_CLEAN: Restarting timer for session %d, sw_if_index %d", + (int) fsid.session_index, sess->sw_if_index); +#endif + /* There was activity on the session, so the idle timeout + has not passed. Enqueue for another time period. */ + + acl_fa_conn_list_add_session (am, fsid, now); + pw->cnt_session_timer_restarted++; + } + else + { +#ifdef FA_NODE_VERBOSE_DEBUG + clib_warning + ("ACL_FA_NODE_CLEAN: Deleting session %d, sw_if_index %d", + (int) fsid.session_index, sess->sw_if_index); +#endif + acl_fa_delete_session (am, sw_if_index, fsid); + pw->cnt_deleted_sessions++; + } + } + else + { + pw->cnt_already_deleted_sessions++; + } + } + total_expired = vec_len (pw->expired); + /* zero out the vector which we have acted on */ + if (pw->expired) + _vec_len (pw->expired) = 0; + /* if we were advancing and reached the end + * (no more sessions to recycle), reset the fast-forward timestamp */ + + if (pw->swipe_end_time && 0 == total_expired) + pw->swipe_end_time = 0; + return (total_expired); +} + +/* + * This process ensures the connection cleanup happens every so often + * even in absence of traffic, as well as provides general orchestration + * for requests like connection deletion on a given sw_if_index. + */ + + +/* *INDENT-OFF* */ +#define foreach_acl_fa_cleaner_error \ +_(UNKNOWN_EVENT, "unknown event received") \ +/* end of errors */ + +typedef enum +{ +#define _(sym,str) ACL_FA_CLEANER_ERROR_##sym, + foreach_acl_fa_cleaner_error +#undef _ + ACL_FA_CLEANER_N_ERROR, +} acl_fa_cleaner_error_t; + +static char *acl_fa_cleaner_error_strings[] = { +#define _(sym,string) string, + foreach_acl_fa_cleaner_error +#undef _ +}; + +/* *INDENT-ON* */ + +static vlib_node_registration_t acl_fa_session_cleaner_process_node; +static vlib_node_registration_t acl_fa_worker_session_cleaner_process_node; + +/* + * Per-worker thread interrupt-driven cleaner thread + * to clean idle connections if there are no packets + */ +static uword +acl_fa_worker_conn_cleaner_process (vlib_main_t * vm, + vlib_node_runtime_t * rt, + vlib_frame_t * f) +{ + acl_main_t *am = &acl_main; + u64 now = clib_cpu_time_now (); + u16 thread_index = os_get_thread_index (); + acl_fa_per_worker_data_t *pw = &am->per_worker_data[thread_index]; + int num_expired; + elog_acl_maybe_trace_X1 (am, + "acl_fa_worker_conn_cleaner interrupt: now %lu", + "i8", now); + /* allow another interrupt to be queued */ + pw->interrupt_is_pending = 0; + if (pw->clear_in_process) + { + if (0 == pw->swipe_end_time) + { + /* + * Someone has just set the flag to start clearing. + * we do this by combing through the connections up to a "time T" + * which is now, and requeueing everything except the expired + * connections and those matching the interface(s) being cleared. + */ + + /* + * first filter the sw_if_index bitmap that they want from us, by + * a bitmap of sw_if_index for which we actually have connections. + */ + if ((pw->pending_clear_sw_if_index_bitmap == 0) + || (pw->serviced_sw_if_index_bitmap == 0)) + { + elog_acl_maybe_trace_X1 (am, + "acl_fa_worker_conn_cleaner: now %lu, someone tried to call clear but one of the bitmaps are empty", + "i8", now); + clib_bitmap_zero (pw->pending_clear_sw_if_index_bitmap); + } + else + { +#ifdef FA_NODE_VERBOSE_DEBUG + clib_warning + ("WORKER-CLEAR: (before and) swiping sw-if-index bitmap: %U, my serviced bitmap %U", + format_bitmap_hex, pw->pending_clear_sw_if_index_bitmap, + format_bitmap_hex, pw->serviced_sw_if_index_bitmap); +#endif + pw->pending_clear_sw_if_index_bitmap = + clib_bitmap_and (pw->pending_clear_sw_if_index_bitmap, + pw->serviced_sw_if_index_bitmap); + } + + if (clib_bitmap_is_zero (pw->pending_clear_sw_if_index_bitmap)) + { + /* if the cross-section is a zero vector, no need to do anything. */ + elog_acl_maybe_trace_X1 (am, + "acl_fa_worker_conn_cleaner: now %lu, clearing done, nothing to do", + "i8", now); + pw->clear_in_process = 0; + } + else + { +#ifdef FA_NODE_VERBOSE_DEBUG + clib_warning + ("WORKER-CLEAR: swiping sw-if-index bitmap: %U, my serviced bitmap %U", + format_bitmap_hex, pw->pending_clear_sw_if_index_bitmap, + format_bitmap_hex, pw->serviced_sw_if_index_bitmap); +#endif + elog_acl_maybe_trace_X1 (am, + "acl_fa_worker_conn_cleaner: swiping until %lu", + "i8", now); + /* swipe through the connection lists until enqueue timestamps become above "now" */ + pw->swipe_end_time = now; + } + } + } + num_expired = acl_fa_check_idle_sessions (am, thread_index, now); + // clib_warning("WORKER-CLEAR: checked %d sessions (clear_in_progress: %d)", num_expired, pw->clear_in_process); + elog_acl_maybe_trace_X2 (am, + "acl_fa_worker_conn_cleaner: checked %d sessions (clear_in_process: %d)", + "i4i4", (u32) num_expired, + (u32) pw->clear_in_process); + if (pw->clear_in_process) + { + if (0 == num_expired) + { + /* we were clearing but we could not process any more connections. time to stop. */ + clib_bitmap_zero (pw->pending_clear_sw_if_index_bitmap); + pw->clear_in_process = 0; + elog_acl_maybe_trace_X1 (am, + "acl_fa_worker_conn_cleaner: now %lu, clearing done - all done", + "i8", now); + } + else + { + elog_acl_maybe_trace_X1 (am, + "acl_fa_worker_conn_cleaner: now %lu, more work to do - requesting interrupt", + "i8", now); + /* should continue clearing.. So could they please sent an interrupt again? */ + pw->interrupt_is_needed = 1; + } + } + else + { + if (num_expired >= am->fa_max_deleted_sessions_per_interval) + { + /* there was too much work, we should get an interrupt ASAP */ + pw->interrupt_is_needed = 1; + pw->interrupt_is_unwanted = 0; + } + else if (num_expired <= am->fa_min_deleted_sessions_per_interval) + { + /* signal that they should trigger us less */ + pw->interrupt_is_needed = 0; + pw->interrupt_is_unwanted = 1; + } + else + { + /* the current rate of interrupts is ok */ + pw->interrupt_is_needed = 0; + pw->interrupt_is_unwanted = 0; + } + elog_acl_maybe_trace_X3 (am, + "acl_fa_worker_conn_cleaner: now %lu, interrupt needed: %u, interrupt unwanted: %u", + "i8i4i4", now, ((u32) pw->interrupt_is_needed), + ((u32) pw->interrupt_is_unwanted)); + } + pw->interrupt_generation = am->fa_interrupt_generation; + return 0; +} + +static void +send_one_worker_interrupt (vlib_main_t * vm, acl_main_t * am, + int thread_index) +{ + acl_fa_per_worker_data_t *pw = &am->per_worker_data[thread_index]; + if (!pw->interrupt_is_pending) + { + pw->interrupt_is_pending = 1; + vlib_node_set_interrupt_pending (vlib_mains[thread_index], + acl_fa_worker_session_cleaner_process_node.index); + elog_acl_maybe_trace_X1 (am, + "send_one_worker_interrupt: send interrupt to worker %d", + "i4", ((u32) thread_index)); + /* if the interrupt was requested, mark that done. */ + /* pw->interrupt_is_needed = 0; */ + } +} + +static void +send_interrupts_to_workers (vlib_main_t * vm, acl_main_t * am) +{ + int i; + /* Can't use vec_len(am->per_worker_data) since the threads might not have come up yet; */ + int n_threads = vec_len (vlib_mains); + for (i = 0; i < n_threads; i++) + { + send_one_worker_interrupt (vm, am, i); + } +} + +/* centralized process to drive per-worker cleaners */ +static uword +acl_fa_session_cleaner_process (vlib_main_t * vm, vlib_node_runtime_t * rt, + vlib_frame_t * f) +{ + acl_main_t *am = &acl_main; + u64 now; + f64 cpu_cps = vm->clib_time.clocks_per_second; + u64 next_expire; + /* We should check if there are connections to clean up - at least twice a second */ + u64 max_timer_wait_interval = cpu_cps / 2; + uword event_type, *event_data = 0; + acl_fa_per_worker_data_t *pw0; + + am->fa_current_cleaner_timer_wait_interval = max_timer_wait_interval; + am->fa_cleaner_node_index = acl_fa_session_cleaner_process_node.index; + am->fa_interrupt_generation = 1; + while (1) + { + now = clib_cpu_time_now (); + next_expire = now + am->fa_current_cleaner_timer_wait_interval; + int has_pending_conns = 0; + u16 ti; + u8 tt; + + /* + * walk over all per-thread list heads of different timeouts, + * and see if there are any connections pending. + * If there aren't - we do not need to wake up until the + * worker code signals that it has added a connection. + * + * Also, while we are at it, calculate the earliest we need to wake up. + */ + for (ti = 0; ti < vec_len (vlib_mains); ti++) + { + if (ti >= vec_len (am->per_worker_data)) + { + continue; + } + acl_fa_per_worker_data_t *pw = &am->per_worker_data[ti]; + for (tt = 0; tt < vec_len (pw->fa_conn_list_head); tt++) + { + u64 head_expiry = + acl_fa_get_list_head_expiry_time (am, pw, now, ti, tt); + if ((head_expiry < next_expire) && !pw->interrupt_is_pending) + { + elog_acl_maybe_trace_X3 (am, + "acl_fa_session_cleaner_process: now %lu, worker: %d tt: %d", + "i8i2i2", now, ti, tt); + elog_acl_maybe_trace_X2 (am, + "acl_fa_session_cleaner_process: head expiry: %lu, is earlier than curr next expire: %lu", + "i8i8", head_expiry, next_expire); + next_expire = head_expiry; + } + if (~0 != pw->fa_conn_list_head[tt]) + { + has_pending_conns = 1; + } + } + } + + /* If no pending connections and no ACL applied then no point in timing out */ + if (!has_pending_conns && (0 == am->fa_total_enabled_count)) + { + am->fa_cleaner_cnt_wait_without_timeout++; + elog_acl_maybe_trace_X1 (am, + "acl_conn_cleaner: now %lu entering wait without timeout", + "i8", now); + (void) vlib_process_wait_for_event (vm); + event_type = vlib_process_get_events (vm, &event_data); + } + else + { + f64 timeout = ((i64) next_expire - (i64) now) / cpu_cps; + if (timeout <= 0) + { + /* skip waiting altogether */ + event_type = ~0; + } + else + { + am->fa_cleaner_cnt_wait_with_timeout++; + elog_acl_maybe_trace_X2 (am, + "acl_conn_cleaner: now %lu entering wait with timeout %.6f sec", + "i8f8", now, timeout); + (void) vlib_process_wait_for_event_or_clock (vm, timeout); + event_type = vlib_process_get_events (vm, &event_data); + } + } + + switch (event_type) + { + case ~0: + /* nothing to do */ + break; + case ACL_FA_CLEANER_RESCHEDULE: + /* Nothing to do. */ + break; + case ACL_FA_CLEANER_DELETE_BY_SW_IF_INDEX: + { + uword *clear_sw_if_index_bitmap = 0; + uword *sw_if_index0; + int clear_all = 0; + now = clib_cpu_time_now (); + elog_acl_maybe_trace_X1 (am, + "acl_fa_session_cleaner_process: now %lu, received ACL_FA_CLEANER_DELETE_BY_SW_IF_INDEX", + "i8", now); + vec_foreach (sw_if_index0, event_data) + { + am->fa_cleaner_cnt_delete_by_sw_index++; + elog_acl_maybe_trace_X1 (am, + "acl_fa_session_cleaner_process: ACL_FA_CLEANER_DELETE_BY_SW_IF_INDEX %d", + "i4", *sw_if_index0); + if (*sw_if_index0 == ~0) + { + clear_all = 1; + } + else + { + if (!pool_is_free_index + (am->vnet_main->interface_main.sw_interfaces, + *sw_if_index0)) + { + clear_sw_if_index_bitmap = + clib_bitmap_set (clear_sw_if_index_bitmap, + *sw_if_index0, 1); + } + } + } +#ifdef FA_NODE_VERBOSE_DEBUG + clib_warning ("ACL_FA_CLEANER_DELETE_BY_SW_IF_INDEX bitmap: %U", + format_bitmap_hex, clear_sw_if_index_bitmap); +#endif + vec_foreach (pw0, am->per_worker_data) + { + CLIB_MEMORY_BARRIER (); + while (pw0->clear_in_process) + { + CLIB_MEMORY_BARRIER (); + elog_acl_maybe_trace_X1 (am, + "ACL_FA_NODE_CLEAN: waiting previous cleaning cycle to finish on %d", + "i4", + (u32) (pw0 - am->per_worker_data)); + vlib_process_suspend (vm, 0.0001); + if (pw0->interrupt_is_needed) + { + send_one_worker_interrupt (vm, am, + (pw0 - am->per_worker_data)); + } + } + if (pw0->clear_in_process) + { + clib_warning + ("ERROR-BUG! Could not initiate cleaning on worker because another cleanup in progress"); + } + else + { + if (clear_all) + { + /* if we need to clear all, then just clear the interfaces that we are servicing */ + pw0->pending_clear_sw_if_index_bitmap = + clib_bitmap_dup (pw0->serviced_sw_if_index_bitmap); + } + else + { + pw0->pending_clear_sw_if_index_bitmap = + clib_bitmap_dup (clear_sw_if_index_bitmap); + } + pw0->clear_in_process = 1; + } + } + /* send some interrupts so they can start working */ + send_interrupts_to_workers (vm, am); + + /* now wait till they all complete */ +#ifdef FA_NODE_VERBOSE_DEBUG + clib_warning ("CLEANER mains len: %d per-worker len: %d", + vec_len (vlib_mains), + vec_len (am->per_worker_data)); +#endif + vec_foreach (pw0, am->per_worker_data) + { + CLIB_MEMORY_BARRIER (); + while (pw0->clear_in_process) + { + CLIB_MEMORY_BARRIER (); + elog_acl_maybe_trace_X1 (am, + "ACL_FA_NODE_CLEAN: waiting for my cleaning cycle to finish on %d", + "i4", + (u32) (pw0 - am->per_worker_data)); + vlib_process_suspend (vm, 0.0001); + if (pw0->interrupt_is_needed) + { + send_one_worker_interrupt (vm, am, + (pw0 - am->per_worker_data)); + } + } + } +#ifdef FA_NODE_VERBOSE_DEBUG + clib_warning ("ACL_FA_NODE_CLEAN: cleaning done"); +#endif + clib_bitmap_free (clear_sw_if_index_bitmap); + } + break; + default: +#ifdef FA_NODE_VERBOSE_DEBUG + clib_warning ("ACL plugin connection cleaner: unknown event %u", + event_type); +#endif + vlib_node_increment_counter (vm, + acl_fa_session_cleaner_process_node. + index, + ACL_FA_CLEANER_ERROR_UNKNOWN_EVENT, 1); + am->fa_cleaner_cnt_unknown_event++; + break; + } + + send_interrupts_to_workers (vm, am); + + if (event_data) + _vec_len (event_data) = 0; + + /* + * If the interrupts were not processed yet, ensure we wait a bit, + * but up to a point. + */ + int need_more_wait = 0; + int max_wait_cycles = 100; + do + { + need_more_wait = 0; + vec_foreach (pw0, am->per_worker_data) + { + if (pw0->interrupt_generation != am->fa_interrupt_generation) + { + need_more_wait = 1; + } + } + if (need_more_wait) + { + vlib_process_suspend (vm, 0.0001); + } + } + while (need_more_wait && (--max_wait_cycles > 0)); + + int interrupts_needed = 0; + int interrupts_unwanted = 0; + + vec_foreach (pw0, am->per_worker_data) + { + if (pw0->interrupt_is_needed) + { + interrupts_needed++; + /* the per-worker value is reset when sending the interrupt */ + } + if (pw0->interrupt_is_unwanted) + { + interrupts_unwanted++; + pw0->interrupt_is_unwanted = 0; + } + } + if (interrupts_needed) + { + /* they need more interrupts, do less waiting around next time */ + am->fa_current_cleaner_timer_wait_interval /= 2; + /* never go into zero-wait either though - we need to give the space to others */ + am->fa_current_cleaner_timer_wait_interval += 1; + } + else if (interrupts_unwanted) + { + /* slowly increase the amount of sleep up to a limit */ + if (am->fa_current_cleaner_timer_wait_interval < + max_timer_wait_interval) + am->fa_current_cleaner_timer_wait_interval += + cpu_cps * am->fa_cleaner_wait_time_increment; + } + am->fa_cleaner_cnt_event_cycles++; + am->fa_interrupt_generation++; + } + /* NOT REACHED */ + return 0; +} + + +void +acl_fa_enable_disable (u32 sw_if_index, int is_input, int enable_disable) +{ + acl_main_t *am = &acl_main; + 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--; + } + + 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); + } + 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); + } + if ((!enable_disable) && (!acl_fa_ifc_has_in_acl (am, sw_if_index)) + && (!acl_fa_ifc_has_out_acl (am, sw_if_index))) + { +#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); + } +} + +void +show_fa_sessions_hash (vlib_main_t * vm, u32 verbose) +{ + acl_main_t *am = &acl_main; + if (am->fa_sessions_hash_is_initialized) + { + vlib_cli_output (vm, "\nSession lookup hash table:\n%U\n\n", + format_bihash_40_8, &am->fa_sessions_hash, verbose); + } + else + { + vlib_cli_output (vm, + "\nSession lookup hash table is not allocated.\n\n"); + } +} + + +/* *INDENT-OFF* */ + +VLIB_REGISTER_NODE (acl_fa_worker_session_cleaner_process_node, static) = { + .function = acl_fa_worker_conn_cleaner_process, + .name = "acl-plugin-fa-worker-cleaner-process", + .type = VLIB_NODE_TYPE_INPUT, + .state = VLIB_NODE_STATE_INTERRUPT, +}; + +VLIB_REGISTER_NODE (acl_fa_session_cleaner_process_node, static) = { + .function = acl_fa_session_cleaner_process, + .type = VLIB_NODE_TYPE_PROCESS, + .name = "acl-plugin-fa-cleaner-process", + .n_errors = ARRAY_LEN (acl_fa_cleaner_error_strings), + .error_strings = acl_fa_cleaner_error_strings, + .n_next_nodes = 0, + .next_nodes = {}, +}; + + +/* *INDENT-ON* */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |