diff options
Diffstat (limited to 'src/vnet/tcp/tcp_cli.c')
| -rw-r--r-- | src/vnet/tcp/tcp_cli.c | 1030 |
1 files changed, 1030 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp_cli.c b/src/vnet/tcp/tcp_cli.c new file mode 100644 index 00000000000..a28e2c83659 --- /dev/null +++ b/src/vnet/tcp/tcp_cli.c @@ -0,0 +1,1030 @@ +/* + * Copyright (c) 2020 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 <vnet/tcp/tcp.h> +#include <vnet/tcp/tcp_inlines.h> +#include <vnet/dpo/receive_dpo.h> +#include <vnet/ip-neighbor/ip_neighbor.h> + +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; +} + +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; +} + +/** + * \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* */ + +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"); + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |