X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=src%2Fvnet%2Fudp%2Fudp.c;h=8fa1147b03050aec5274ac6b6a76b327a4c66b48;hb=07063b8ea;hp=3b8b707abe1d98e1d240e6ba26fa001f9d185e47;hpb=371ca50a74a9c4f1b74c4c1b65c6fdec610fcfc3;p=vpp.git diff --git a/src/vnet/udp/udp.c b/src/vnet/udp/udp.c index 3b8b707abe1..8fa1147b030 100644 --- a/src/vnet/udp/udp.c +++ b/src/vnet/udp/udp.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2016 Cisco and/or its affiliates. + * Copyright (c) 2016-2019 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: @@ -22,6 +22,8 @@ #include #include +udp_main_t udp_main; + udp_connection_t * udp_connection_alloc (u32 thread_index) { @@ -45,19 +47,33 @@ udp_connection_alloc (u32 thread_index) pool_get_aligned (um->connections[thread_index], uc, CLIB_CACHE_LINE_BYTES); } - memset (uc, 0, sizeof (*uc)); + clib_memset (uc, 0, sizeof (*uc)); uc->c_c_index = uc - um->connections[thread_index]; uc->c_thread_index = thread_index; uc->c_proto = TRANSPORT_PROTO_UDP; + clib_spinlock_init (&uc->rx_lock); return uc; } void udp_connection_free (udp_connection_t * uc) { - pool_put (udp_main.connections[uc->c_thread_index], uc); + u32 thread_index = uc->c_thread_index; if (CLIB_DEBUG) - memset (uc, 0xFA, sizeof (*uc)); + clib_memset (uc, 0xFA, sizeof (*uc)); + pool_put (udp_main.connections[thread_index], uc); +} + +void +udp_connection_delete (udp_connection_t * uc) +{ + if ((uc->flags & UDP_CONN_F_OWNS_PORT) + || !(uc->flags & UDP_CONN_F_CONNECTED)) + udp_unregister_dst_port (vlib_get_main (), + clib_net_to_host_u16 (uc->c_lcl_port), + uc->c_is_ip4); + session_transport_delete_notify (&uc->connection); + udp_connection_free (uc); } u32 @@ -70,12 +86,13 @@ udp_session_bind (u32 session_index, transport_endpoint_t * lcl) void *iface_ip; udp_dst_port_info_t *pi; - pi = udp_get_dst_port_info (um, lcl->port, lcl->is_ip4); + pi = + udp_get_dst_port_info (um, clib_net_to_host_u16 (lcl->port), lcl->is_ip4); if (pi) return -1; pool_get (um->listener_pool, listener); - memset (listener, 0, sizeof (udp_connection_t)); + clib_memset (listener, 0, sizeof (udp_connection_t)); listener->c_lcl_port = lcl->port; listener->c_c_index = listener - um->listener_pool; @@ -92,10 +109,12 @@ udp_session_bind (u32 session_index, transport_endpoint_t * lcl) listener->c_proto = TRANSPORT_PROTO_UDP; listener->c_s_index = session_index; listener->c_fib_index = lcl->fib_index; + listener->flags |= UDP_CONN_F_OWNS_PORT; + clib_spinlock_init (&listener->rx_lock); node_index = lcl->is_ip4 ? udp4_input_node.index : udp6_input_node.index; udp_register_dst_port (vm, clib_net_to_host_u16 (lcl->port), node_index, - 1 /* is_ipv4 */ ); + lcl->is_ip4); return listener->c_c_index; } @@ -140,9 +159,15 @@ udp_push_header (transport_connection_t * tc, vlib_buffer_t * b) vnet_buffer (b)->l3_hdr_offset = (u8 *) ih - b->data; } vnet_buffer (b)->sw_if_index[VLIB_RX] = 0; - vnet_buffer (b)->sw_if_index[VLIB_TX] = ~0; + vnet_buffer (b)->sw_if_index[VLIB_TX] = uc->c_fib_index; b->flags |= VNET_BUFFER_F_LOCALLY_ORIGINATED; + if (PREDICT_FALSE (uc->flags & UDP_CONN_F_CLOSING)) + { + if (!transport_max_tx_dequeue (&uc->connection)) + udp_connection_delete (uc); + } + return 0; } @@ -159,16 +184,16 @@ udp_session_get (u32 connection_index, u32 thread_index) void udp_session_close (u32 connection_index, u32 thread_index) { - vlib_main_t *vm = vlib_get_main (); udp_connection_t *uc; + uc = udp_connection_get (connection_index, thread_index); - if (uc) - { - udp_unregister_dst_port (vm, clib_net_to_host_u16 (uc->c_lcl_port), - uc->c_is_ip4); - stream_session_delete_notify (&uc->connection); - udp_connection_free (uc); - } + if (!uc) + return; + + if (!transport_max_tx_dequeue (&uc->connection)) + udp_connection_delete (uc); + else + uc->flags |= UDP_CONN_F_CLOSING; } void @@ -232,6 +257,8 @@ format_udp_session (u8 * s, va_list * args) u8 * format_udp_half_open_session (u8 * s, va_list * args) { + u32 __clib_unused tci = va_arg (*args, u32); + u32 __clib_unused thread_index = va_arg (*args, u32); clib_warning ("BUG"); return 0; } @@ -240,30 +267,31 @@ u8 * format_udp_listener_session (u8 * s, va_list * args) { u32 tci = va_arg (*args, u32); + u32 __clib_unused thread_index = va_arg (*args, u32); + u32 verbose = va_arg (*args, u32); udp_connection_t *uc = udp_listener_get (tci); - return format (s, "%U", format_udp_connection, uc); -} - -u16 -udp_send_mss (transport_connection_t * t) -{ - /* TODO figure out MTU of output interface */ - return 1460; + return format (s, "%U", format_udp_connection, uc, verbose); } -u32 -udp_send_space (transport_connection_t * t) +static int +udp_session_send_params (transport_connection_t * tconn, + transport_send_params_t * sp) { /* No constraint on TX window */ - return ~0; + sp->snd_space = ~0; + /* TODO figure out MTU of output interface */ + sp->snd_mss = 1460; + sp->tx_offset = 0; + sp->flags = 0; + return 0; } int -udp_open_connection (transport_endpoint_t * rmt) +udp_open_connection (transport_endpoint_cfg_t * rmt) { udp_main_t *um = vnet_get_udp_main (); vlib_main_t *vm = vlib_get_main (); - u32 thread_index = vlib_get_thread_index (); + u32 thread_index = vm->thread_index; udp_connection_t *uc; ip46_address_t lcl_addr; u32 node_index; @@ -286,6 +314,10 @@ udp_open_connection (transport_endpoint_t * rmt) node_index = rmt->is_ip4 ? udp4_input_node.index : udp6_input_node.index; udp_register_dst_port (vm, lcl_port, node_index, 1 /* is_ipv4 */ ); + /* We don't poll main thread if we have workers */ + if (vlib_num_workers ()) + thread_index = 1; + uc = udp_connection_alloc (thread_index); ip_copy (&uc->c_rmt_ip, &rmt->ip, rmt->is_ip4); ip_copy (&uc->c_lcl_ip, &lcl_addr, rmt->is_ip4); @@ -294,36 +326,103 @@ udp_open_connection (transport_endpoint_t * rmt) uc->c_is_ip4 = rmt->is_ip4; uc->c_proto = TRANSPORT_PROTO_UDP; uc->c_fib_index = rmt->fib_index; + uc->flags |= UDP_CONN_F_OWNS_PORT; return uc->c_c_index; } transport_connection_t * -udp_half_open_session_get_transport (u32 conn_index) +udp_session_get_half_open (u32 conn_index) { udp_connection_t *uc; - uc = udp_connection_get (conn_index, vlib_get_thread_index ()); + u32 thread_index; + + /* We don't poll main thread if we have workers */ + thread_index = vlib_num_workers ()? 1 : 0; + uc = udp_connection_get (conn_index, thread_index); + if (!uc) + return 0; return &uc->connection; } /* *INDENT-OFF* */ -const static transport_proto_vft_t udp_proto = { - .bind = udp_session_bind, - .open = udp_open_connection, - .unbind = udp_session_unbind, +static const transport_proto_vft_t udp_proto = { + .start_listen = udp_session_bind, + .connect = udp_open_connection, + .stop_listen = udp_session_unbind, + .push_header = udp_push_header, + .get_connection = udp_session_get, + .get_listener = udp_session_get_listener, + .get_half_open = udp_session_get_half_open, + .close = udp_session_close, + .cleanup = udp_session_cleanup, + .send_params = udp_session_send_params, + .format_connection = format_udp_session, + .format_half_open = format_udp_half_open_session, + .format_listener = format_udp_listener_session, + .transport_options = { + .name = "udp", + .short_name = "U", + .tx_type = TRANSPORT_TX_DGRAM, + .service_type = TRANSPORT_SERVICE_CL, + }, +}; +/* *INDENT-ON* */ + + +int +udpc_connection_open (transport_endpoint_cfg_t * rmt) +{ + udp_connection_t *uc; + /* Reproduce the logic of udp_open_connection to find the correct thread */ + u32 thread_index = vlib_num_workers ()? 1 : vlib_get_main ()->thread_index; + u32 uc_index; + uc_index = udp_open_connection (rmt); + if (uc_index == (u32) ~ 0) + return -1; + uc = udp_connection_get (uc_index, thread_index); + uc->flags |= UDP_CONN_F_CONNECTED; + return uc_index; +} + +u32 +udpc_connection_listen (u32 session_index, transport_endpoint_t * lcl) +{ + udp_connection_t *listener; + u32 li_index; + li_index = udp_session_bind (session_index, lcl); + if (li_index == (u32) ~ 0) + return -1; + listener = udp_listener_get (li_index); + listener->flags |= UDP_CONN_F_CONNECTED; + /* Fake udp listener, i.e., make sure session layer adds a udp instead of + * udpc listener to the lookup table */ + ((session_endpoint_cfg_t *) lcl)->transport_proto = TRANSPORT_PROTO_UDP; + return li_index; +} + +/* *INDENT-OFF* */ +static const transport_proto_vft_t udpc_proto = { + .start_listen = udpc_connection_listen, + .stop_listen = udp_session_unbind, + .connect = udpc_connection_open, .push_header = udp_push_header, .get_connection = udp_session_get, .get_listener = udp_session_get_listener, - .get_half_open = udp_half_open_session_get_transport, + .get_half_open = udp_session_get_half_open, .close = udp_session_close, .cleanup = udp_session_cleanup, - .send_mss = udp_send_mss, - .send_space = udp_send_space, + .send_params = udp_session_send_params, .format_connection = format_udp_session, .format_half_open = format_udp_half_open_session, .format_listener = format_udp_listener_session, - .tx_type = TRANSPORT_TX_DEQUEUE, - .service_type = TRANSPORT_SERVICE_VC, + .transport_options = { + .name = "udpc", + .short_name = "U", + .tx_type = TRANSPORT_TX_DGRAM, + .service_type = TRANSPORT_SERVICE_VC, + .half_open_has_fifos = 1 + }, }; /* *INDENT-ON* */ @@ -334,17 +433,9 @@ udp_init (vlib_main_t * vm) ip_main_t *im = &ip_main; vlib_thread_main_t *tm = vlib_get_thread_main (); u32 num_threads; - clib_error_t *error = 0; ip_protocol_info_t *pi; int i; - if ((error = vlib_call_init_function (vm, ip_main_init))) - return error; - if ((error = vlib_call_init_function (vm, ip4_lookup_init))) - return error; - if ((error = vlib_call_init_function (vm, ip6_lookup_init))) - return error; - /* * Registrations */ @@ -361,6 +452,10 @@ udp_init (vlib_main_t * vm) FIB_PROTOCOL_IP4, ip4_lookup_node.index); transport_register_protocol (TRANSPORT_PROTO_UDP, &udp_proto, FIB_PROTOCOL_IP6, ip6_lookup_node.index); + transport_register_protocol (TRANSPORT_PROTO_UDPC, &udpc_proto, + FIB_PROTOCOL_IP4, ip4_lookup_node.index); + transport_register_protocol (TRANSPORT_PROTO_UDPC, &udpc_proto, + FIB_PROTOCOL_IP6, ip6_lookup_node.index); /* * Initialize data structures @@ -378,10 +473,77 @@ udp_init (vlib_main_t * vm) clib_spinlock_init (&um->peekers_readers_locks[i]); clib_spinlock_init (&um->peekers_write_locks[i]); } - return error; + return 0; } -VLIB_INIT_FUNCTION (udp_init); +/* *INDENT-OFF* */ +VLIB_INIT_FUNCTION (udp_init) = +{ + .runs_after = VLIB_INITS("ip_main_init", "ip4_lookup_init", + "ip6_lookup_init"), +}; +/* *INDENT-ON* */ + + +static clib_error_t * +show_udp_punt_fn (vlib_main_t * vm, unformat_input_t * input, + vlib_cli_command_t * cmd_arg) +{ + udp_main_t *um = vnet_get_udp_main (); + + clib_error_t *error = NULL; + + if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) + return clib_error_return (0, "unknown input `%U'", format_unformat_error, + input); + + udp_dst_port_info_t *port_info; + if (um->punt_unknown4) + { + vlib_cli_output (vm, "IPv4 UDP punt: enabled"); + } + else + { + u8 *s = NULL; + vec_foreach (port_info, um->dst_port_infos[UDP_IP4]) + { + if (udp_is_valid_dst_port (port_info->dst_port, 1)) + { + s = format (s, (!s) ? "%d" : ", %d", port_info->dst_port); + } + } + s = format (s, "%c", 0); + vlib_cli_output (vm, "IPV4 UDP ports punt : %s", s); + } + + if (um->punt_unknown6) + { + vlib_cli_output (vm, "IPv6 UDP punt: enabled"); + } + else + { + u8 *s = NULL; + vec_foreach (port_info, um->dst_port_infos[UDP_IP6]) + { + if (udp_is_valid_dst_port (port_info->dst_port, 01)) + { + s = format (s, (!s) ? "%d" : ", %d", port_info->dst_port); + } + } + s = format (s, "%c", 0); + vlib_cli_output (vm, "IPV6 UDP ports punt : %s", s); + } + + return (error); +} +/* *INDENT-OFF* */ +VLIB_CLI_COMMAND (show_tcp_punt_command, static) = +{ + .path = "show udp punt", + .short_help = "show udp punt [ipv4|ipv6]", + .function = show_udp_punt_fn, +}; +/* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON