diff options
Diffstat (limited to 'src/vnet/tcp/tcp.c')
| -rw-r--r-- | src/vnet/tcp/tcp.c | 1053 |
1 files changed, 1 insertions, 1052 deletions
diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c index a1d774dc89b..2ac938a1b1e 100644 --- a/src/vnet/tcp/tcp.c +++ b/src/vnet/tcp/tcp.c @@ -19,11 +19,10 @@ */ #include <vnet/tcp/tcp.h> +#include <vnet/tcp/tcp_inlines.h> #include <vnet/session/session.h> #include <vnet/fib/fib.h> #include <vnet/dpo/load_balance.h> -#include <vnet/dpo/receive_dpo.h> -#include <vnet/ip-neighbor/ip_neighbor.h> #include <math.h> tcp_main_t tcp_main; @@ -707,51 +706,6 @@ tcp_connection_init_vars (tcp_connection_t * tc) tc->start_ts = tcp_time_now_us (tc->c_thread_index); } -void -tcp_init_w_buffer (tcp_connection_t * tc, vlib_buffer_t * b, u8 is_ip4) -{ - tcp_header_t *th = tcp_buffer_hdr (b); - - tc->c_lcl_port = th->dst_port; - tc->c_rmt_port = th->src_port; - tc->c_is_ip4 = is_ip4; - - if (is_ip4) - { - ip4_header_t *ip4 = vlib_buffer_get_current (b); - tc->c_lcl_ip4.as_u32 = ip4->dst_address.as_u32; - tc->c_rmt_ip4.as_u32 = ip4->src_address.as_u32; - } - else - { - ip6_header_t *ip6 = vlib_buffer_get_current (b); - clib_memcpy_fast (&tc->c_lcl_ip6, &ip6->dst_address, - sizeof (ip6_address_t)); - clib_memcpy_fast (&tc->c_rmt_ip6, &ip6->src_address, - sizeof (ip6_address_t)); - } - - tc->irs = vnet_buffer (b)->tcp.seq_number; - tc->rcv_nxt = vnet_buffer (b)->tcp.seq_number + 1; - tc->rcv_las = tc->rcv_nxt; - tc->sw_if_index = vnet_buffer (b)->sw_if_index[VLIB_RX]; - tc->snd_wl1 = vnet_buffer (b)->tcp.seq_number; - tc->snd_wl2 = vnet_buffer (b)->tcp.ack_number; - - /* RFC1323: TSval timestamps sent on {SYN} and {SYN,ACK} - * segments are used to initialize PAWS. */ - if (tcp_opts_tstamp (&tc->rcv_opts)) - { - tc->tsval_recent = tc->rcv_opts.tsval; - tc->tsval_recent_age = tcp_time_now (); - } - - if (tcp_opts_wscale (&tc->rcv_opts)) - tc->snd_wscale = tc->rcv_opts.wscale; - - tc->snd_wnd = clib_net_to_host_u16 (th->window) << tc->snd_wscale; -} - static int tcp_alloc_custom_local_endpoint (tcp_main_t * tm, ip46_address_t * lcl_addr, u16 * lcl_port, u8 is_ip4) @@ -831,256 +785,6 @@ tcp_session_open (transport_endpoint_cfg_t * rmt) return tc->c_c_index; } -const char *tcp_fsm_states[] = { -#define _(sym, str) str, - foreach_tcp_fsm_state -#undef _ -}; - -u8 * -format_tcp_state (u8 * s, va_list * args) -{ - u32 state = va_arg (*args, u32); - - if (state < TCP_N_STATES) - s = format (s, "%s", tcp_fsm_states[state]); - else - s = format (s, "UNKNOWN (%d (0x%x))", state, state); - return s; -} - -const char *tcp_cfg_flags_str[] = { -#define _(sym, str) str, - foreach_tcp_cfg_flag -#undef _ -}; - -static u8 * -format_tcp_cfg_flags (u8 * s, va_list * args) -{ - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - int i, last = -1; - - for (i = 0; i < TCP_CFG_N_FLAG_BITS; i++) - if (tc->cfg_flags & (1 << i)) - last = i; - for (i = 0; i < last; i++) - { - if (tc->cfg_flags & (1 << i)) - s = format (s, "%s, ", tcp_cfg_flags_str[i]); - } - if (last >= 0) - s = format (s, "%s", tcp_cfg_flags_str[last]); - return s; -} - -const char *tcp_connection_flags_str[] = { -#define _(sym, str) str, - foreach_tcp_connection_flag -#undef _ -}; - -static u8 * -format_tcp_connection_flags (u8 * s, va_list * args) -{ - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - int i, last = -1; - - for (i = 0; i < TCP_CONN_N_FLAG_BITS; i++) - if (tc->flags & (1 << i)) - last = i; - for (i = 0; i < last; i++) - { - if (tc->flags & (1 << i)) - s = format (s, "%s, ", tcp_connection_flags_str[i]); - } - if (last >= 0) - s = format (s, "%s", tcp_connection_flags_str[last]); - return s; -} - -const char *tcp_conn_timers[] = { -#define _(sym, str) str, - foreach_tcp_timer -#undef _ -}; - -static u8 * -format_tcp_timers (u8 * s, va_list * args) -{ - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - int i, last = -1; - - for (i = 0; i < TCP_N_TIMERS; i++) - if (tc->timers[i] != TCP_TIMER_HANDLE_INVALID) - last = i; - - for (i = 0; i < last; i++) - { - if (tc->timers[i] != TCP_TIMER_HANDLE_INVALID) - s = format (s, "%s,", tcp_conn_timers[i]); - } - - if (last >= 0) - s = format (s, "%s", tcp_conn_timers[i]); - - return s; -} - -static u8 * -format_tcp_congestion_status (u8 * s, va_list * args) -{ - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - if (tcp_in_recovery (tc)) - s = format (s, "recovery"); - else if (tcp_in_fastrecovery (tc)) - s = format (s, "fastrecovery"); - else - s = format (s, "none"); - return s; -} - -static i32 -tcp_rcv_wnd_available (tcp_connection_t * tc) -{ - return (i32) tc->rcv_wnd - (tc->rcv_nxt - tc->rcv_las); -} - -static u8 * -format_tcp_congestion (u8 * s, va_list * args) -{ - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - u32 indent = format_get_indent (s), prr_space = 0; - - s = format (s, "%U ", format_tcp_congestion_status, tc); - s = format (s, "algo %s cwnd %u ssthresh %u bytes_acked %u\n", - tc->cc_algo->name, tc->cwnd, tc->ssthresh, tc->bytes_acked); - s = format (s, "%Ucc space %u prev_cwnd %u prev_ssthresh %u\n", - format_white_space, indent, tcp_available_cc_snd_space (tc), - tc->prev_cwnd, tc->prev_ssthresh); - s = format (s, "%Usnd_cong %u dupack %u limited_tx %u\n", - format_white_space, indent, tc->snd_congestion - tc->iss, - tc->rcv_dupacks, tc->limited_transmit - tc->iss); - s = format (s, "%Urxt_bytes %u rxt_delivered %u rxt_head %u rxt_ts %u\n", - format_white_space, indent, tc->snd_rxt_bytes, - tc->rxt_delivered, tc->rxt_head - tc->iss, - tcp_time_now_w_thread (tc->c_thread_index) - tc->snd_rxt_ts); - if (tcp_in_fastrecovery (tc)) - prr_space = tcp_fastrecovery_prr_snd_space (tc); - s = format (s, "%Uprr_start %u prr_delivered %u prr space %u\n", - format_white_space, indent, tc->prr_start - tc->iss, - tc->prr_delivered, prr_space); - return s; -} - -static u8 * -format_tcp_stats (u8 * s, va_list * args) -{ - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - u32 indent = format_get_indent (s); - s = format (s, "in segs %lu dsegs %lu bytes %lu dupacks %u\n", - tc->segs_in, tc->data_segs_in, tc->bytes_in, tc->dupacks_in); - s = format (s, "%Uout segs %lu dsegs %lu bytes %lu dupacks %u\n", - format_white_space, indent, tc->segs_out, - tc->data_segs_out, tc->bytes_out, tc->dupacks_out); - s = format (s, "%Ufr %u tr %u rxt segs %lu bytes %lu duration %.3f\n", - format_white_space, indent, tc->fr_occurences, - tc->tr_occurences, tc->segs_retrans, tc->bytes_retrans, - tcp_time_now_us (tc->c_thread_index) - tc->start_ts); - s = format (s, "%Uerr wnd data below %u above %u ack below %u above %u", - format_white_space, indent, tc->errors.below_data_wnd, - tc->errors.above_data_wnd, tc->errors.below_ack_wnd, - tc->errors.above_ack_wnd); - return s; -} - -static u8 * -format_tcp_vars (u8 * s, va_list * args) -{ - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - s = format (s, " index: %u cfg: %U flags: %U timers: %U\n", tc->c_c_index, - format_tcp_cfg_flags, tc, format_tcp_connection_flags, tc, - format_tcp_timers, tc); - s = format (s, " snd_una %u snd_nxt %u snd_una_max %u", - tc->snd_una - tc->iss, tc->snd_nxt - tc->iss, - tc->snd_una_max - tc->iss); - s = format (s, " rcv_nxt %u rcv_las %u\n", - tc->rcv_nxt - tc->irs, tc->rcv_las - tc->irs); - s = format (s, " snd_wnd %u rcv_wnd %u rcv_wscale %u ", - tc->snd_wnd, tc->rcv_wnd, tc->rcv_wscale); - s = format (s, "snd_wl1 %u snd_wl2 %u\n", tc->snd_wl1 - tc->irs, - tc->snd_wl2 - tc->iss); - s = format (s, " flight size %u out space %u rcv_wnd_av %u", - tcp_flight_size (tc), tcp_available_output_snd_space (tc), - tcp_rcv_wnd_available (tc)); - s = format (s, " tsval_recent %u\n", tc->tsval_recent); - s = format (s, " tsecr %u tsecr_last_ack %u tsval_recent_age %u", - tc->rcv_opts.tsecr, tc->tsecr_last_ack, - tcp_time_now () - tc->tsval_recent_age); - s = format (s, " snd_mss %u\n", tc->snd_mss); - s = format (s, " rto %u rto_boff %u srtt %u us %.3f rttvar %u rtt_ts %.4f", - tc->rto, tc->rto_boff, tc->srtt, tc->mrtt_us * 1000, tc->rttvar, - tc->rtt_ts); - s = format (s, " rtt_seq %u\n", tc->rtt_seq - tc->iss); - s = format (s, " next_node %u opaque 0x%x fib_index %u\n", - tc->next_node_index, tc->next_node_opaque, tc->c_fib_index); - s = format (s, " cong: %U", format_tcp_congestion, tc); - - if (tc->state >= TCP_STATE_ESTABLISHED) - { - s = format (s, " sboard: %U\n", format_tcp_scoreboard, &tc->sack_sb, - tc); - s = format (s, " stats: %U\n", format_tcp_stats, tc); - } - if (vec_len (tc->snd_sacks)) - s = format (s, " sacks tx: %U\n", format_tcp_sacks, tc); - - return s; -} - -u8 * -format_tcp_connection_id (u8 * s, va_list * args) -{ - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - if (!tc) - return s; - if (tc->c_is_ip4) - { - s = format (s, "[%d:%d][%s] %U:%d->%U:%d", tc->c_thread_index, - tc->c_s_index, "T", format_ip4_address, &tc->c_lcl_ip4, - clib_net_to_host_u16 (tc->c_lcl_port), format_ip4_address, - &tc->c_rmt_ip4, clib_net_to_host_u16 (tc->c_rmt_port)); - } - else - { - s = format (s, "[%d:%d][%s] %U:%d->%U:%d", tc->c_thread_index, - tc->c_s_index, "T", format_ip6_address, &tc->c_lcl_ip6, - clib_net_to_host_u16 (tc->c_lcl_port), format_ip6_address, - &tc->c_rmt_ip6, clib_net_to_host_u16 (tc->c_rmt_port)); - } - - return s; -} - -u8 * -format_tcp_connection (u8 * s, va_list * args) -{ - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - u32 verbose = va_arg (*args, u32); - - if (!tc) - return s; - s = format (s, "%-50U", format_tcp_connection_id, tc); - if (verbose) - { - s = format (s, "%-15U", format_tcp_state, tc->state); - if (verbose > 1) - s = format (s, "\n%U", format_tcp_vars, tc); - } - - return s; -} - static u8 * format_tcp_session (u8 * s, va_list * args) { @@ -1119,100 +823,6 @@ format_tcp_half_open_session (u8 * s, va_list * args) return format (s, "%U", format_tcp_connection_id, tc); } -u8 * -format_tcp_sacks (u8 * s, va_list * args) -{ - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - sack_block_t *sacks = tc->snd_sacks; - sack_block_t *block; - int i, len = 0; - - len = vec_len (sacks); - for (i = 0; i < len - 1; i++) - { - block = &sacks[i]; - s = format (s, " start %u end %u\n", block->start - tc->irs, - block->end - tc->irs); - } - if (len) - { - block = &sacks[len - 1]; - s = format (s, " start %u end %u", block->start - tc->irs, - block->end - tc->irs); - } - return s; -} - -u8 * -format_tcp_rcv_sacks (u8 * s, va_list * args) -{ - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - sack_block_t *sacks = tc->rcv_opts.sacks; - sack_block_t *block; - int i, len = 0; - - len = vec_len (sacks); - for (i = 0; i < len - 1; i++) - { - block = &sacks[i]; - s = format (s, " start %u end %u\n", block->start - tc->iss, - block->end - tc->iss); - } - if (len) - { - block = &sacks[len - 1]; - s = format (s, " start %u end %u", block->start - tc->iss, - block->end - tc->iss); - } - return s; -} - -static u8 * -format_tcp_sack_hole (u8 * s, va_list * args) -{ - sack_scoreboard_hole_t *hole = va_arg (*args, sack_scoreboard_hole_t *); - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - if (tc) - s = format (s, " [%u, %u]", hole->start - tc->iss, hole->end - tc->iss); - else - s = format (s, " [%u, %u]", hole->start, hole->end); - return s; -} - -u8 * -format_tcp_scoreboard (u8 * s, va_list * args) -{ - sack_scoreboard_t *sb = va_arg (*args, sack_scoreboard_t *); - tcp_connection_t *tc = va_arg (*args, tcp_connection_t *); - sack_scoreboard_hole_t *hole; - u32 indent = format_get_indent (s); - - s = format (s, "sacked %u last_sacked %u lost %u last_lost %u" - " rxt_sacked %u\n", - sb->sacked_bytes, sb->last_sacked_bytes, sb->lost_bytes, - sb->last_lost_bytes, sb->rxt_sacked); - s = format (s, "%Ulast_delivered %u high_sacked %u is_reneging %u\n", - format_white_space, indent, sb->last_bytes_delivered, - sb->high_sacked - tc->iss, sb->is_reneging); - s = format (s, "%Ucur_rxt_hole %u high_rxt %u rescue_rxt %u", - format_white_space, indent, sb->cur_rxt_hole, - sb->high_rxt - tc->iss, sb->rescue_rxt - tc->iss); - - hole = scoreboard_first_hole (sb); - if (hole) - s = format (s, "\n%Uhead %u tail %u %u holes:\n%U", format_white_space, - indent, sb->head, sb->tail, pool_elts (sb->holes), - format_white_space, indent); - - while (hole) - { - s = format (s, "%U", format_tcp_sack_hole, hole, tc); - hole = scoreboard_next_hole (sb, hole); - } - - return s; -} - static transport_connection_t * tcp_session_get_transport (u32 conn_index, u32 thread_index) { @@ -1813,7 +1423,6 @@ tcp_init (vlib_main_t * vm) transport_register_protocol (TRANSPORT_PROTO_TCP, &tcp_proto, FIB_PROTOCOL_IP6, tcp6_output_node.index); - tcp_api_reference (); tcp_configuration_init (); tm->cc_algo_by_name = hash_create_string (0, sizeof (uword)); @@ -1823,666 +1432,6 @@ tcp_init (vlib_main_t * vm) VLIB_INIT_FUNCTION (tcp_init); -uword -unformat_tcp_cc_algo (unformat_input_t * input, va_list * va) -{ - tcp_cc_algorithm_type_e *result = va_arg (*va, tcp_cc_algorithm_type_e *); - tcp_main_t *tm = &tcp_main; - char *cc_algo_name; - u8 found = 0; - uword *p; - - if (unformat (input, "%s", &cc_algo_name) - && ((p = hash_get_mem (tm->cc_algo_by_name, cc_algo_name)))) - { - *result = *p; - found = 1; - } - - vec_free (cc_algo_name); - return found; -} - -uword -unformat_tcp_cc_algo_cfg (unformat_input_t * input, va_list * va) -{ - tcp_main_t *tm = vnet_get_tcp_main (); - tcp_cc_algorithm_t *cc_alg; - unformat_input_t sub_input; - int found = 0; - - vec_foreach (cc_alg, tm->cc_algos) - { - if (!unformat (input, cc_alg->name)) - continue; - - if (cc_alg->unformat_cfg - && unformat (input, "%U", unformat_vlib_cli_sub_input, &sub_input)) - { - if (cc_alg->unformat_cfg (&sub_input)) - found = 1; - } - } - return found; -} - -static clib_error_t * -tcp_config_fn (vlib_main_t * vm, unformat_input_t * input) -{ - u32 cwnd_multiplier, tmp_time; - uword memory_size; - - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (input, "preallocated-connections %d", - &tcp_cfg.preallocated_connections)) - ; - else if (unformat (input, "preallocated-half-open-connections %d", - &tcp_cfg.preallocated_half_open_connections)) - ; - else if (unformat (input, "buffer-fail-fraction %f", - &tcp_cfg.buffer_fail_fraction)) - ; - else if (unformat (input, "max-rx-fifo %U", unformat_memory_size, - &memory_size)) - { - if (memory_size >= 0x100000000) - { - return clib_error_return - (0, "max-rx-fifo %llu (0x%llx) too large", memory_size, - memory_size); - } - tcp_cfg.max_rx_fifo = memory_size; - } - else if (unformat (input, "min-rx-fifo %U", unformat_memory_size, - &memory_size)) - { - if (memory_size >= 0x100000000) - { - return clib_error_return - (0, "min-rx-fifo %llu (0x%llx) too large", memory_size, - memory_size); - } - tcp_cfg.min_rx_fifo = memory_size; - } - else if (unformat (input, "mtu %u", &tcp_cfg.default_mtu)) - ; - else if (unformat (input, "rwnd-min-update-ack %d", - &tcp_cfg.rwnd_min_update_ack)) - ; - else if (unformat (input, "initial-cwnd-multiplier %u", - &cwnd_multiplier)) - tcp_cfg.initial_cwnd_multiplier = cwnd_multiplier; - else if (unformat (input, "no-tx-pacing")) - tcp_cfg.enable_tx_pacing = 0; - else if (unformat (input, "tso")) - tcp_cfg.allow_tso = 1; - else if (unformat (input, "no-csum-offload")) - tcp_cfg.csum_offload = 0; - else if (unformat (input, "cc-algo %U", unformat_tcp_cc_algo, - &tcp_cfg.cc_algo)) - ; - else if (unformat (input, "%U", unformat_tcp_cc_algo_cfg)) - ; - else if (unformat (input, "closewait-time %u", &tmp_time)) - tcp_cfg.closewait_time = tmp_time / TCP_TIMER_TICK; - else if (unformat (input, "timewait-time %u", &tmp_time)) - tcp_cfg.timewait_time = tmp_time / TCP_TIMER_TICK; - else if (unformat (input, "finwait1-time %u", &tmp_time)) - tcp_cfg.finwait1_time = tmp_time / TCP_TIMER_TICK; - else if (unformat (input, "finwait2-time %u", &tmp_time)) - tcp_cfg.finwait2_time = tmp_time / TCP_TIMER_TICK; - else if (unformat (input, "lastack-time %u", &tmp_time)) - tcp_cfg.lastack_time = tmp_time / TCP_TIMER_TICK; - else if (unformat (input, "closing-time %u", &tmp_time)) - tcp_cfg.closing_time = tmp_time / TCP_TIMER_TICK; - else if (unformat (input, "cleanup-time %u", &tmp_time)) - tcp_cfg.cleanup_time = tmp_time / 1000.0; - else - return clib_error_return (0, "unknown input `%U'", - format_unformat_error, input); - } - return 0; -} - -VLIB_CONFIG_FUNCTION (tcp_config_fn, "tcp"); - - -/** - * \brief Configure an ipv4 source address range - * @param vm vlib_main_t pointer - * @param start first ipv4 address in the source address range - * @param end last ipv4 address in the source address range - * @param table_id VRF / table ID, 0 for the default FIB - * @return 0 if all OK, else an error indication from api_errno.h - */ - -int -tcp_configure_v4_source_address_range (vlib_main_t * vm, - ip4_address_t * start, - ip4_address_t * end, u32 table_id) -{ - u32 start_host_byte_order, end_host_byte_order; - fib_prefix_t prefix; - fib_node_index_t fei; - u32 fib_index = 0; - u32 sw_if_index; - int rv; - - clib_memset (&prefix, 0, sizeof (prefix)); - - fib_index = fib_table_find (FIB_PROTOCOL_IP4, table_id); - - if (fib_index == ~0) - return VNET_API_ERROR_NO_SUCH_FIB; - - start_host_byte_order = clib_net_to_host_u32 (start->as_u32); - end_host_byte_order = clib_net_to_host_u32 (end->as_u32); - - /* sanity check for reversed args or some such */ - if ((end_host_byte_order - start_host_byte_order) > (10 << 10)) - return VNET_API_ERROR_INVALID_ARGUMENT; - - /* Lookup the last address, to identify the interface involved */ - prefix.fp_len = 32; - prefix.fp_proto = FIB_PROTOCOL_IP4; - memcpy (&prefix.fp_addr.ip4, end, sizeof (ip4_address_t)); - - fei = fib_table_lookup (fib_index, &prefix); - - /* Couldn't find route to destination. Bail out. */ - if (fei == FIB_NODE_INDEX_INVALID) - return VNET_API_ERROR_NEXT_HOP_NOT_IN_FIB; - - sw_if_index = fib_entry_get_resolving_interface (fei); - - /* Configure proxy arp across the range */ - rv = ip4_neighbor_proxy_add (fib_index, start, end); - - if (rv) - return rv; - - rv = ip4_neighbor_proxy_enable (sw_if_index); - - if (rv) - return rv; - - do - { - dpo_id_t dpo = DPO_INVALID; - - vec_add1 (tcp_cfg.ip4_src_addrs, start[0]); - - /* Add local adjacencies for the range */ - - receive_dpo_add_or_lock (DPO_PROTO_IP4, ~0 /* sw_if_index */ , - NULL, &dpo); - prefix.fp_len = 32; - prefix.fp_proto = FIB_PROTOCOL_IP4; - prefix.fp_addr.ip4.as_u32 = start->as_u32; - - fib_table_entry_special_dpo_update (fib_index, - &prefix, - FIB_SOURCE_API, - FIB_ENTRY_FLAG_EXCLUSIVE, &dpo); - dpo_reset (&dpo); - - start_host_byte_order++; - start->as_u32 = clib_host_to_net_u32 (start_host_byte_order); - } - while (start_host_byte_order <= end_host_byte_order); - - return 0; -} - -/** - * \brief Configure an ipv6 source address range - * @param vm vlib_main_t pointer - * @param start first ipv6 address in the source address range - * @param end last ipv6 address in the source address range - * @param table_id VRF / table ID, 0 for the default FIB - * @return 0 if all OK, else an error indication from api_errno.h - */ - -int -tcp_configure_v6_source_address_range (vlib_main_t * vm, - ip6_address_t * start, - ip6_address_t * end, u32 table_id) -{ - fib_prefix_t prefix; - u32 fib_index = 0; - fib_node_index_t fei; - u32 sw_if_index; - - clib_memset (&prefix, 0, sizeof (prefix)); - - fib_index = fib_table_find (FIB_PROTOCOL_IP6, table_id); - - if (fib_index == ~0) - return VNET_API_ERROR_NO_SUCH_FIB; - - while (1) - { - int i; - ip6_address_t tmp; - dpo_id_t dpo = DPO_INVALID; - - /* Remember this address */ - vec_add1 (tcp_cfg.ip6_src_addrs, start[0]); - - /* Lookup the prefix, to identify the interface involved */ - prefix.fp_len = 128; - prefix.fp_proto = FIB_PROTOCOL_IP6; - memcpy (&prefix.fp_addr.ip6, start, sizeof (ip6_address_t)); - - fei = fib_table_lookup (fib_index, &prefix); - - /* Couldn't find route to destination. Bail out. */ - if (fei == FIB_NODE_INDEX_INVALID) - return VNET_API_ERROR_NEXT_HOP_NOT_IN_FIB; - - sw_if_index = fib_entry_get_resolving_interface (fei); - - if (sw_if_index == (u32) ~ 0) - return VNET_API_ERROR_NO_MATCHING_INTERFACE; - - /* Add a proxy neighbor discovery entry for this address */ - ip6_neighbor_proxy_add (sw_if_index, start); - - /* Add a receive adjacency for this address */ - receive_dpo_add_or_lock (DPO_PROTO_IP6, ~0 /* sw_if_index */ , - NULL, &dpo); - - fib_table_entry_special_dpo_update (fib_index, - &prefix, - FIB_SOURCE_API, - FIB_ENTRY_FLAG_EXCLUSIVE, &dpo); - dpo_reset (&dpo); - - /* Done with the entire range? */ - if (!memcmp (start, end, sizeof (start[0]))) - break; - - /* Increment the address. DGMS. */ - tmp = start[0]; - for (i = 15; i >= 0; i--) - { - tmp.as_u8[i] += 1; - if (tmp.as_u8[i] != 0) - break; - } - start[0] = tmp; - } - return 0; -} - -static clib_error_t * -tcp_src_address_fn (vlib_main_t * vm, - unformat_input_t * input, vlib_cli_command_t * cmd_arg) -{ - ip4_address_t v4start, v4end; - ip6_address_t v6start, v6end; - u32 table_id = 0; - int v4set = 0; - int v6set = 0; - int rv; - - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (input, "%U - %U", unformat_ip4_address, &v4start, - unformat_ip4_address, &v4end)) - v4set = 1; - else if (unformat (input, "%U", unformat_ip4_address, &v4start)) - { - memcpy (&v4end, &v4start, sizeof (v4start)); - v4set = 1; - } - else if (unformat (input, "%U - %U", unformat_ip6_address, &v6start, - unformat_ip6_address, &v6end)) - v6set = 1; - else if (unformat (input, "%U", unformat_ip6_address, &v6start)) - { - memcpy (&v6end, &v6start, sizeof (v6start)); - v6set = 1; - } - else if (unformat (input, "fib-table %d", &table_id)) - ; - else - break; - } - - if (!v4set && !v6set) - return clib_error_return (0, "at least one v4 or v6 address required"); - - if (v4set) - { - rv = tcp_configure_v4_source_address_range (vm, &v4start, &v4end, - table_id); - switch (rv) - { - case 0: - break; - - case VNET_API_ERROR_NO_SUCH_FIB: - return clib_error_return (0, "Invalid table-id %d", table_id); - - case VNET_API_ERROR_INVALID_ARGUMENT: - return clib_error_return (0, "Invalid address range %U - %U", - format_ip4_address, &v4start, - format_ip4_address, &v4end); - default: - return clib_error_return (0, "error %d", rv); - break; - } - } - if (v6set) - { - rv = tcp_configure_v6_source_address_range (vm, &v6start, &v6end, - table_id); - switch (rv) - { - case 0: - break; - - case VNET_API_ERROR_NO_SUCH_FIB: - return clib_error_return (0, "Invalid table-id %d", table_id); - - default: - return clib_error_return (0, "error %d", rv); - break; - } - } - return 0; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (tcp_src_address_command, static) = -{ - .path = "tcp src-address", - .short_help = "tcp src-address <ip-addr> [- <ip-addr>] add src address range", - .function = tcp_src_address_fn, -}; -/* *INDENT-ON* */ - -static u8 * -tcp_scoreboard_dump_trace (u8 * s, sack_scoreboard_t * sb) -{ -#if TCP_SCOREBOARD_TRACE - - scoreboard_trace_elt_t *block; - int i = 0; - - if (!sb->trace) - return s; - - s = format (s, "scoreboard trace:"); - vec_foreach (block, sb->trace) - { - s = format (s, "{%u, %u, %u, %u, %u}, ", block->start, block->end, - block->ack, block->snd_una_max, block->group); - if ((++i % 3) == 0) - s = format (s, "\n"); - } - return s; -#else - return 0; -#endif -} - -static clib_error_t * -tcp_show_scoreboard_trace_fn (vlib_main_t * vm, unformat_input_t * input, - vlib_cli_command_t * cmd_arg) -{ - transport_connection_t *tconn = 0; - tcp_connection_t *tc; - u8 *s = 0; - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (input, "%U", unformat_transport_connection, &tconn, - TRANSPORT_PROTO_TCP)) - ; - else - return clib_error_return (0, "unknown input `%U'", - format_unformat_error, input); - } - - if (!TCP_SCOREBOARD_TRACE) - { - vlib_cli_output (vm, "scoreboard tracing not enabled"); - return 0; - } - - tc = tcp_get_connection_from_transport (tconn); - s = tcp_scoreboard_dump_trace (s, &tc->sack_sb); - vlib_cli_output (vm, "%v", s); - return 0; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (tcp_show_scoreboard_trace_command, static) = -{ - .path = "show tcp scoreboard trace", - .short_help = "show tcp scoreboard trace <connection>", - .function = tcp_show_scoreboard_trace_fn, -}; -/* *INDENT-ON* */ - -u8 * -tcp_scoreboard_replay (u8 * s, tcp_connection_t * tc, u8 verbose) -{ - int i, trace_len; - scoreboard_trace_elt_t *trace; - u32 next_ack, left, group, has_new_ack = 0; - tcp_connection_t _dummy_tc, *dummy_tc = &_dummy_tc; - sack_block_t *block; - - if (!TCP_SCOREBOARD_TRACE) - { - s = format (s, "scoreboard tracing not enabled"); - return s; - } - - if (!tc) - return s; - - clib_memset (dummy_tc, 0, sizeof (*dummy_tc)); - tcp_connection_timers_init (dummy_tc); - scoreboard_init (&dummy_tc->sack_sb); - dummy_tc->rcv_opts.flags |= TCP_OPTS_FLAG_SACK; - -#if TCP_SCOREBOARD_TRACE - trace = tc->sack_sb.trace; - trace_len = vec_len (tc->sack_sb.trace); -#endif - - for (i = 0; i < trace_len; i++) - { - if (trace[i].ack != 0) - { - dummy_tc->snd_una = trace[i].ack - 1448; - dummy_tc->snd_una_max = trace[i].ack; - } - } - - left = 0; - while (left < trace_len) - { - group = trace[left].group; - vec_reset_length (dummy_tc->rcv_opts.sacks); - has_new_ack = 0; - while (trace[left].group == group) - { - if (trace[left].ack != 0) - { - if (verbose) - s = format (s, "Adding ack %u, snd_una_max %u, segs: ", - trace[left].ack, trace[left].snd_una_max); - dummy_tc->snd_una_max = trace[left].snd_una_max; - next_ack = trace[left].ack; - has_new_ack = 1; - } - else - { - if (verbose) - s = format (s, "[%u, %u], ", trace[left].start, - trace[left].end); - vec_add2 (dummy_tc->rcv_opts.sacks, block, 1); - block->start = trace[left].start; - block->end = trace[left].end; - } - left++; - } - - /* Push segments */ - tcp_rcv_sacks (dummy_tc, next_ack); - if (has_new_ack) - dummy_tc->snd_una = next_ack; - - if (verbose) - s = format (s, "result: %U", format_tcp_scoreboard, - &dummy_tc->sack_sb); - - } - s = format (s, "result: %U", format_tcp_scoreboard, &dummy_tc->sack_sb); - - return s; -} - -static clib_error_t * -tcp_scoreboard_trace_fn (vlib_main_t * vm, unformat_input_t * input, - vlib_cli_command_t * cmd_arg) -{ - transport_connection_t *tconn = 0; - tcp_connection_t *tc = 0; - u8 *str = 0; - while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - { - if (unformat (input, "%U", unformat_transport_connection, &tconn, - TRANSPORT_PROTO_TCP)) - ; - else - return clib_error_return (0, "unknown input `%U'", - format_unformat_error, input); - } - - if (!TCP_SCOREBOARD_TRACE) - { - vlib_cli_output (vm, "scoreboard tracing not enabled"); - return 0; - } - - tc = tcp_get_connection_from_transport (tconn); - if (!tc) - { - vlib_cli_output (vm, "connection not found"); - return 0; - } - str = tcp_scoreboard_replay (str, tc, 1); - vlib_cli_output (vm, "%v", str); - return 0; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (tcp_replay_scoreboard_command, static) = -{ - .path = "tcp replay scoreboard", - .short_help = "tcp replay scoreboard <connection>", - .function = tcp_scoreboard_trace_fn, -}; -/* *INDENT-ON* */ - -static clib_error_t * -show_tcp_punt_fn (vlib_main_t * vm, unformat_input_t * input, - vlib_cli_command_t * cmd_arg) -{ - tcp_main_t *tm = vnet_get_tcp_main (); - if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - return clib_error_return (0, "unknown input `%U'", format_unformat_error, - input); - vlib_cli_output (vm, "IPv4 TCP punt: %s", - tm->punt_unknown4 ? "enabled" : "disabled"); - vlib_cli_output (vm, "IPv6 TCP punt: %s", - tm->punt_unknown6 ? "enabled" : "disabled"); - return 0; -} -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (show_tcp_punt_command, static) = -{ - .path = "show tcp punt", - .short_help = "show tcp punt", - .function = show_tcp_punt_fn, -}; -/* *INDENT-ON* */ - -static clib_error_t * -show_tcp_stats_fn (vlib_main_t * vm, unformat_input_t * input, - vlib_cli_command_t * cmd) -{ - tcp_main_t *tm = vnet_get_tcp_main (); - tcp_worker_ctx_t *wrk; - u32 thread; - - if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - return clib_error_return (0, "unknown input `%U'", format_unformat_error, - input); - for (thread = 0; thread < vec_len (tm->wrk_ctx); thread++) - { - wrk = tcp_get_worker (thread); - vlib_cli_output (vm, "Thread %u:\n", thread); - - if (clib_fifo_elts (wrk->pending_timers)) - vlib_cli_output (vm, " %lu pending timers", - clib_fifo_elts (wrk->pending_timers)); - -#define _(name,type,str) \ - if (wrk->stats.name) \ - vlib_cli_output (vm, " %lu %s", wrk->stats.name, str); - foreach_tcp_wrk_stat -#undef _ - } - - return 0; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (show_tcp_stats_command, static) = -{ - .path = "show tcp stats", - .short_help = "show tcp stats", - .function = show_tcp_stats_fn, -}; -/* *INDENT-ON* */ - -static clib_error_t * -clear_tcp_stats_fn (vlib_main_t * vm, unformat_input_t * input, - vlib_cli_command_t * cmd) -{ - tcp_main_t *tm = vnet_get_tcp_main (); - tcp_worker_ctx_t *wrk; - u32 thread; - - if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) - return clib_error_return (0, "unknown input `%U'", format_unformat_error, - input); - - for (thread = 0; thread < vec_len (tm->wrk_ctx); thread++) - { - wrk = tcp_get_worker (thread); - clib_memset (&wrk->stats, 0, sizeof (wrk->stats)); - } - - return 0; -} - -/* *INDENT-OFF* */ -VLIB_CLI_COMMAND (clear_tcp_stats_command, static) = -{ - .path = "clear tcp stats", - .short_help = "clear tcp stats", - .function = clear_tcp_stats_fn, -}; -/* *INDENT-ON* */ - /* * fd.io coding-style-patch-verification: ON * |