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authorFlorin Coras <fcoras@cisco.com>2020-03-18 20:31:34 +0000
committerDave Barach <openvpp@barachs.net>2020-04-02 15:10:26 +0000
commit999840cf805f26a490e8e6b8acc1fe7a7c21a181 (patch)
treea077add2979502f634450241735b1f6c11fd2283 /src/vnet/tcp/tcp.c
parenta26f54421ae61b1a42c2ff69d3037c428aa238f4 (diff)
tcp: move features to separate files
Type: refactor Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: Ia477b8dba9266f47907967e363c11048e5cd95ab
Diffstat (limited to 'src/vnet/tcp/tcp.c')
-rw-r--r--src/vnet/tcp/tcp.c1053
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
*