LISP: make TTL for map register messages configurable - vpp

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author	Filip Tehlar <ftehlar@cisco.com>	2017-08-02 12:45:07 +0200
committer	Florin Coras <florin.coras@gmail.com>	2017-08-02 17:10:14 +0000
commit	1e553a00389fb0eb2d54b950a3cfd91dd1a72644 (patch)
tree	7203f85d0e4ddda6b0f79f9d40b7bbe810a8239d /src/vnet/srv6
parent	5780898e5be8e8c279ac469417688d5b884f0217 (diff)

LISP: make TTL for map register messages configurable

Change-Id: I38e1c6a6b033e12ef3f4345a1deff73fa4adbea0 Signed-off-by: Filip Tehlar <ftehlar@cisco.com>

Diffstat (limited to 'src/vnet/srv6')

0 files changed, 0 insertions, 0 deletions

/* * Copyright (c) 2017-2019 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: * * 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/vnet.h> #include <vlibmemory/api.h> #include <vnet/session/application.h> #include <vnet/session/application_interface.h> #include <hs_apps/proxy.h> proxy_main_t proxy_main; typedef struct { char uri[128]; u32 app_index; u32 api_context; } proxy_connect_args_t; static void proxy_cb_fn (void *data, u32 data_len) { proxy_connect_args_t *pa = (proxy_connect_args_t *) data; vnet_connect_args_t a; memset (&a, 0, sizeof (a)); a.api_context = pa->api_context; a.app_index = pa->app_index; a.uri = pa->uri; vnet_connect_uri (&a); } static void proxy_call_main_thread (vnet_connect_args_t * a) { if (vlib_get_thread_index () == 0) { vnet_connect_uri (a); } else { proxy_connect_args_t args; args.api_context = a->api_context; args.app_index = a->app_index; clib_memcpy (args.uri, a->uri, vec_len (a->uri)); vl_api_rpc_call_main_thread (proxy_cb_fn, (u8 *) & args, sizeof (args)); } } static void delete_proxy_session (session_t * s, int is_active_open) { proxy_main_t *pm = &proxy_main; proxy_session_t *ps = 0; vnet_disconnect_args_t _a, *a = &_a; session_t *active_open_session = 0; session_t *server_session = 0; uword *p; u64 handle; handle = session_handle (s); clib_spinlock_lock_if_init (&pm->sessions_lock); if (is_active_open) { active_open_session = s; p = hash_get (pm->proxy_session_by_active_open_handle, handle); if (p == 0) { clib_warning ("proxy session for %s handle %lld (%llx) AWOL", is_active_open ? "active open" : "server", handle, handle); } else if (!pool_is_free_index (pm->sessions, p[0])) { ps = pool_elt_at_index (pm->sessions, p[0]); if (ps->vpp_server_handle != ~0) server_session = session_get_from_handle (ps->vpp_server_handle); else server_session = 0; } } else { server_session = s; p = hash_get (pm->proxy_session_by_server_handle, handle); if (p == 0) { clib_warning ("proxy session for %s handle %lld (%llx) AWOL", is_active_open ? "active open" : "server", handle, handle); } else if (!pool_is_free_index (pm->sessions, p[0])) { ps = pool_elt_at_index (pm->sessions, p[0]); if (ps->vpp_active_open_handle != ~0) active_open_session = session_get_from_handle (ps->vpp_active_open_handle); else active_open_session = 0; } } if (ps) { if (CLIB_DEBUG > 0) clib_memset (ps, 0xFE, sizeof (*ps)); pool_put (pm->sessions, ps); } clib_spinlock_unlock_if_init (&pm->sessions_lock); if (active_open_session) { a->handle = session_handle (active_open_session); a->app_index = pm->active_open_app_index; hash_unset (pm->proxy_session_by_active_open_handle, session_handle (active_open_session)); vnet_disconnect_session (a); } if (server_session) { a->handle = session_handle (server_session); a->app_index = pm->server_app_index; hash_unset (pm->proxy_session_by_server_handle, session_handle (server_session)); vnet_disconnect_session (a); } } static int proxy_accept_callback (session_t * s) { proxy_main_t *pm = &proxy_main; s->session_state = SESSION_STATE_READY; clib_spinlock_lock_if_init (&pm->sessions_lock); return 0; } static void proxy_disconnect_callback (session_t * s) { delete_proxy_session (s, 0 /* is_active_open */ ); } static void proxy_reset_callback (session_t * s) { clib_warning ("Reset session %U", format_session, s, 2); delete_proxy_session (s, 0 /* is_active_open */ ); } static int proxy_connected_callback (u32 app_index, u32 api_context, session_t * s, u8 is_fail) { clib_warning ("called..."); return -1; } static int proxy_add_segment_callback (u32 client_index, u64 segment_handle) { clib_warning ("called..."); return -1; } static int proxy_rx_callback (session_t * s) { u32 max_dequeue; int actual_transfer __attribute__ ((unused)); svm_fifo_t *tx_fifo, *rx_fifo; proxy_main_t *pm = &proxy_main; u32 thread_index = vlib_get_thread_index (); vnet_connect_args_t _a, *a = &_a; proxy_session_t *ps; int proxy_index; uword *p; svm_fifo_t *active_open_tx_fifo; ASSERT (s->thread_index == thread_index); clib_spinlock_lock_if_init (&pm->sessions_lock); p = hash_get (pm->proxy_session_by_server_handle, session_handle (s)); if (PREDICT_TRUE (p != 0)) { clib_spinlock_unlock_if_init (&pm->sessions_lock); active_open_tx_fifo = s->rx_fifo; /* * Send event for active open tx fifo */ if (svm_fifo_set_event (active_open_tx_fifo)) { u32 ao_thread_index = active_open_tx_fifo->master_thread_index; u32 ao_session_index = active_open_tx_fifo->master_session_index; if (session_send_io_evt_to_thread_custom (&ao_session_index, ao_thread_index, SESSION_IO_EVT_TX)) clib_warning ("failed to enqueue tx evt"); } } else { rx_fifo = s->rx_fifo; tx_fifo = s->tx_fifo; ASSERT (rx_fifo->master_thread_index == thread_index); ASSERT (tx_fifo->master_thread_index == thread_index); max_dequeue = svm_fifo_max_dequeue_cons (s->rx_fifo); if (PREDICT_FALSE (max_dequeue == 0)) return 0; actual_transfer = svm_fifo_peek (rx_fifo, 0 /* relative_offset */ , max_dequeue, pm->rx_buf[thread_index]); /* $$$ your message in this space: parse url, etc. */ clib_memset (a, 0, sizeof (*a)); clib_spinlock_lock_if_init (&pm->sessions_lock); pool_get (pm->sessions, ps); clib_memset (ps, 0, sizeof (*ps)); ps->server_rx_fifo = rx_fifo; ps->server_tx_fifo = tx_fifo; ps->vpp_server_handle = session_handle (s); proxy_index = ps - pm->sessions; hash_set (pm->proxy_session_by_server_handle, ps->vpp_server_handle, proxy_index); clib_spinlock_unlock_if_init (&pm->sessions_lock); a->uri = (char *) pm->client_uri; a->api_context = proxy_index; a->app_index = pm->active_open_app_index; proxy_call_main_thread (a); } return 0; } static session_cb_vft_t proxy_session_cb_vft = { .session_accept_callback = proxy_accept_callback, .session_disconnect_callback = proxy_disconnect_callback, .session_connected_callback = proxy_connected_callback, .add_segment_callback = proxy_add_segment_callback, .builtin_app_rx_callback = proxy_rx_callback, .session_reset_callback = proxy_reset_callback }; static int active_open_connected_callback (u32 app_index, u32 opaque, session_t * s, u8 is_fail) { proxy_main_t *pm = &proxy_main; proxy_session_t *ps; u8 thread_index = vlib_get_thread_index (); if (is_fail) { clib_warning ("connection %d failed!", opaque); return 0; } /* * Setup proxy session handle. */ clib_spinlock_lock_if_init (&pm->sessions_lock); ps = pool_elt_at_index (pm->sessions, opaque); ps->vpp_active_open_handle = session_handle (s); s->tx_fifo = ps->server_rx_fifo; s->rx_fifo = ps->server_tx_fifo; /* * Reset the active-open tx-fifo master indices so the active-open session * will receive data, etc. */ s->tx_fifo->master_session_index = s->session_index; s->tx_fifo->master_thread_index = s->thread_index; /* * Account for the active-open session's use of the fifos * so they won't disappear until the last session which uses * them disappears */ s->tx_fifo->refcnt++; s->rx_fifo->refcnt++; hash_set (pm->proxy_session_by_active_open_handle, ps->vpp_active_open_handle, opaque); clib_spinlock_unlock_if_init (&pm->sessions_lock); /* * Send event for active open tx fifo */ ASSERT (s->thread_index == thread_index); if (svm_fifo_set_event (s->tx_fifo)) session_send_io_evt_to_thread (s->tx_fifo, SESSION_IO_EVT_TX); return 0; } static void active_open_reset_callback (session_t * s) { delete_proxy_session (s, 1 /* is_active_open */ ); } static int active_open_create_callback (session_t * s) { return 0; } static void active_open_disconnect_callback (session_t * s) { delete_proxy_session (s, 1 /* is_active_open */ ); } static int active_open_rx_callback (session_t * s) { svm_fifo_t *proxy_tx_fifo; proxy_tx_fifo = s->rx_fifo; /* * Send event for server tx fifo */ if (svm_fifo_set_event (proxy_tx_fifo)) { u8 thread_index = proxy_tx_fifo->master_thread_index; u32 session_index = proxy_tx_fifo->master_session_index; return session_send_io_evt_to_thread_custom (&session_index, thread_index, SESSION_IO_EVT_TX); } return 0; } /* *INDENT-OFF* */ static session_cb_vft_t active_open_clients = { .session_reset_callback = active_open_reset_callback, .session_connected_callback = active_open_connected_callback, .session_accept_callback = active_open_create_callback, .session_disconnect_callback = active_open_disconnect_callback, .builtin_app_rx_callback = active_open_rx_callback }; /* *INDENT-ON* */ static void create_api_loopbacks (vlib_main_t * vm) { proxy_main_t *pm = &proxy_main; api_main_t *am = vlibapi_get_main (); vl_shmem_hdr_t *shmem_hdr; shmem_hdr = am->shmem_hdr; pm->vl_input_queue = shmem_hdr->vl_input_queue; pm->server_client_index = vl_api_memclnt_create_internal ("proxy_server", pm->vl_input_queue); pm->active_open_client_index = vl_api_memclnt_create_internal ("proxy_active_open", pm->vl_input_queue); } static int proxy_server_attach () { proxy_main_t *pm = &proxy_main; u64 options[APP_OPTIONS_N_OPTIONS]; vnet_app_attach_args_t _a, *a = &_a; u32 segment_size = 512 << 20; clib_memset (a, 0, sizeof (*a)); clib_memset (options, 0, sizeof (options)); if (pm->private_segment_size) segment_size = pm->private_segment_size; a->api_client_index = pm->server_client_index; a->session_cb_vft = &proxy_session_cb_vft; a->options = options; a->options[APP_OPTIONS_SEGMENT_SIZE] = segment_size; a->options[APP_OPTIONS_RX_FIFO_SIZE] = pm->fifo_size; a->options[APP_OPTIONS_TX_FIFO_SIZE] = pm->fifo_size; a->options[APP_OPTIONS_PRIVATE_SEGMENT_COUNT] = pm->private_segment_count; a->options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = pm->prealloc_fifos ? pm->prealloc_fifos : 0; a->options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN; if (vnet_application_attach (a)) { clib_warning ("failed to attach server"); return -1; } pm->server_app_index = a->app_index; return 0; } static int active_open_attach (void) { proxy_main_t *pm = &proxy_main; vnet_app_attach_args_t _a, *a = &_a; u64 options[16]; clib_memset (a, 0, sizeof (*a)); clib_memset (options, 0, sizeof (options)); a->api_client_index = pm->active_open_client_index; a->session_cb_vft = &active_open_clients; options[APP_OPTIONS_ACCEPT_COOKIE] = 0x12345678; options[APP_OPTIONS_SEGMENT_SIZE] = 512 << 20; options[APP_OPTIONS_RX_FIFO_SIZE] = pm->fifo_size; options[APP_OPTIONS_TX_FIFO_SIZE] = pm->fifo_size; options[APP_OPTIONS_PRIVATE_SEGMENT_COUNT] = pm->private_segment_count; options[APP_OPTIONS_PREALLOC_FIFO_PAIRS] = pm->prealloc_fifos ? pm->prealloc_fifos : 0; options[APP_OPTIONS_FLAGS] = APP_OPTIONS_FLAGS_IS_BUILTIN | APP_OPTIONS_FLAGS_IS_PROXY; a->options = options; if (vnet_application_attach (a)) return -1; pm->active_open_app_index = a->app_index; return 0; } static int proxy_server_listen () { proxy_main_t *pm = &proxy_main; vnet_listen_args_t _a, *a = &_a; clib_memset (a, 0, sizeof (*a)); a->app_index = pm->server_app_index; a->uri = (char *) pm->server_uri; return vnet_bind_uri (a); } static int proxy_server_create (vlib_main_t * vm) { proxy_main_t *pm = &proxy_main; vlib_thread_main_t *vtm = vlib_get_thread_main (); u32 num_threads; int i; if (pm->server_client_index == (u32) ~ 0) create_api_loopbacks (vm); num_threads = 1 /* main thread */ + vtm->n_threads; vec_validate (proxy_main.server_event_queue, num_threads - 1); vec_validate (proxy_main.active_open_event_queue, num_threads - 1); vec_validate (pm->rx_buf, num_threads - 1); for (i = 0; i < num_threads; i++) vec_validate (pm->rx_buf[i], pm->rcv_buffer_size); if (proxy_server_attach ()) { clib_warning ("failed to attach server app"); return -1; } if (proxy_server_listen ()) { clib_warning ("failed to start listening"); return -1; } if (active_open_attach ()) { clib_warning ("failed to attach active open app"); return -1; } for (i = 0; i < num_threads; i++) { pm->active_open_event_queue[i] = session_main_get_vpp_event_queue (i); ASSERT (pm->active_open_event_queue[i]); pm->server_event_queue[i] = session_main_get_vpp_event_queue (i); } return 0; } static clib_error_t * proxy_server_create_command_fn (vlib_main_t * vm, unformat_input_t * input, vlib_cli_command_t * cmd) { proxy_main_t *pm = &proxy_main; char *default_server_uri = "tcp://0.0.0.0/23"; char *default_client_uri = "tcp://6.0.2.2/23"; int rv; u64 tmp; pm->fifo_size = 64 << 10; pm->rcv_buffer_size = 1024; pm->prealloc_fifos = 0; pm->private_segment_count = 0; pm->private_segment_size = 0; pm->server_uri = 0; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) { if (unformat (input, "fifo-size %d", &pm->fifo_size)) pm->fifo_size <<= 10; else if (unformat (input, "rcv-buf-size %d", &pm->rcv_buffer_size)) ; else if (unformat (input, "prealloc-fifos %d", &pm->prealloc_fifos)) ; else if (unformat (input, "private-segment-count %d", &pm->private_segment_count)) ; else if (unformat (input, "private-segment-size %U", unformat_memory_size, &tmp)) { if (tmp >= 0x100000000ULL) return clib_error_return (0, "private segment size %lld (%llu) too large", tmp, tmp); pm->private_segment_size = tmp; } else if (unformat (input, "server-uri %s", &pm->server_uri)) ; else if (unformat (input, "client-uri %s", &pm->client_uri)) pm->client_uri = format (0, "%s%c", pm->client_uri, 0); else return clib_error_return (0, "unknown input `%U'", format_unformat_error, input); } if (!pm->server_uri) { clib_warning ("No server-uri provided, Using default: %s", default_server_uri); pm->server_uri = format (0, "%s%c", default_server_uri, 0); } if (!pm->client_uri) { clib_warning ("No client-uri provided, Using default: %s", default_client_uri); pm->client_uri = format (0, "%s%c", default_client_uri, 0); } vnet_session_enable_disable (vm, 1 /* turn on session and transport */ ); rv = proxy_server_create (vm); switch (rv) { case 0: break; default: return clib_error_return (0, "server_create returned %d", rv); } return 0; } /* *INDENT-OFF* */ VLIB_CLI_COMMAND (proxy_create_command, static) = { .path = "test proxy server", .short_help = "test proxy server [server-uri <tcp://ip/port>]" "[client-uri <tcp://ip/port>][fifo-size <nn>][rcv-buf-size <nn>]" "[prealloc-fifos <nn>][private-segment-size <mem>]" "[private-segment-count <nn>]", .function = proxy_server_create_command_fn, }; /* *INDENT-ON* */ clib_error_t * proxy_main_init (vlib_main_t * vm) { proxy_main_t *pm = &proxy_main; pm->server_client_index = ~0; pm->active_open_client_index = ~0; pm->proxy_session_by_active_open_handle = hash_create (0, sizeof (uword)); pm->proxy_session_by_server_handle = hash_create (0, sizeof (uword)); return 0; } VLIB_INIT_FUNCTION (proxy_main_init); /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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