avf: add avf_create_reply_handler to avf_test - vpp

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author	Jakub Grajciar <jgrajcia@cisco.com>	2018-07-31 10:05:04 +0200
committer	Neale Ranns <nranns@cisco.com>	2018-08-03 14:43:59 +0000
commit	248ff9280abba7c705c2db47ad22d36f06e64bbc (patch)
tree	6a658f8746d6f4fe7022c18ed9a8ee1927a6a8f6 /src/plugins/tlsmbedtls.am
parent	717de096c4d715eab6b783aaa28f26a9114925da (diff)

avf: add avf_create_reply_handler to avf_test

Change-Id: I2f376a777081da131110227e760ca0069438c918 Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>

Diffstat (limited to 'src/plugins/tlsmbedtls.am')

0 files changed, 0 insertions, 0 deletions

/* * ct6_in2out.c - ip6 connection tracker, inside-to-outside path * * Copyright (c) 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 <vlib/vlib.h> #include <vnet/vnet.h> #include <vnet/pg/pg.h> #include <vppinfra/error.h> #include <ct6/ct6.h> typedef struct { u32 sw_if_index; u32 next_index; u32 session_index; } ct6_in2out_trace_t; #ifndef CLIB_MARCH_VARIANT /* packet trace format function */ static u8 * format_ct6_in2out_trace (u8 * s, va_list * args) { CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *); CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *); ct6_in2out_trace_t *t = va_arg (*args, ct6_in2out_trace_t *); s = format (s, "CT6_IN2OUT: sw_if_index %d, next index %d session %d\n", t->sw_if_index, t->next_index, t->session_index); return s; } vlib_node_registration_t ct6_in2out_node; #endif /* CLIB_MARCH_VARIANT */ #define foreach_ct6_in2out_error \ _(PROCESSED, "ct6 packets processed") \ _(CREATED, "ct6 sessions created") \ _(RECYCLED, "ct6 sessions recycled") typedef enum { #define _(sym,str) CT6_IN2OUT_ERROR_##sym, foreach_ct6_in2out_error #undef _ CT6_IN2OUT_N_ERROR, } ct6_in2out_error_t; #ifndef CLIB_MARCH_VARIANT static char *ct6_in2out_error_strings[] = { #define _(sym,string) string, foreach_ct6_in2out_error #undef _ }; #endif /* CLIB_MARCH_VARIANT */ typedef enum { CT6_IN2OUT_NEXT_DROP, CT6_IN2OUT_N_NEXT, } ct6_next_t; #ifndef CLIB_MARCH_VARIANT ct6_session_t * ct6_create_or_recycle_session (ct6_main_t * cmp, clib_bihash_kv_48_8_t * kvpp, f64 now, u32 my_thread_index, u32 * recyclep, u32 * createp) { ct6_session_t *s0; /* Empty arena? */ if (PREDICT_FALSE (cmp->last_index[my_thread_index] == ~0)) goto alloc0; /* Look at the least-recently-used session */ s0 = pool_elt_at_index (cmp->sessions[my_thread_index], cmp->last_index[my_thread_index]); if (s0->expires < now) clib_warning ("session %d expired %.2f time now %.2f", s0 - cmp->sessions[my_thread_index], s0->expires, now); if (pool_elts (cmp->sessions[my_thread_index]) >= cmp->max_sessions_per_worker) clib_warning ("recycle session %d have %d max %d", s0 - cmp->sessions[my_thread_index], pool_elts (cmp->sessions[my_thread_index]), cmp->max_sessions_per_worker); /* Session expired, or we have as many sessions as is allowed by law? */ if ((s0->expires < now) || (pool_elts (cmp->sessions[my_thread_index]) >= cmp->max_sessions_per_worker)) { /* recycle the session */ if (clib_bihash_add_del_48_8 (&cmp->session_hash, (clib_bihash_kv_48_8_t *) s0, 0 /* is_add */ ) < 0) clib_warning ("session %d not found in hash?", s0 - cmp->sessions[my_thread_index]); ct6_lru_remove (cmp, s0); *recyclep += 1; } else { alloc0: /* Allocate a fresh session */ pool_get (cmp->sessions[my_thread_index], s0); *createp += 1; } /* Session setup */ memset (s0, 0, sizeof (*s0)); clib_memcpy_fast (s0, kvpp, sizeof (ct6_session_key_t)); s0->thread_index = my_thread_index; s0->expires = now + cmp->session_timeout_interval; kvpp->value = s0 - cmp->sessions[my_thread_index]; clib_bihash_add_del_48_8 (&cmp->session_hash, kvpp, 1 /* is_add */ ); ct6_lru_add (cmp, s0, now); return s0; } #endif /* CLIB_MARCH_VARIANT */ always_inline uword ct6_in2out_inline (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, int is_trace) { u32 n_left_from, *from; vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b; u16 nexts[VLIB_FRAME_SIZE], *next; ct6_main_t *cmp = &ct6_main; u32 my_thread_index = vm->thread_index; f64 now = vlib_time_now (vm); u32 created = 0; u32 recycled = 0; from = vlib_frame_vector_args (frame); n_left_from = frame->n_vectors; vlib_get_buffers (vm, from, bufs, n_left_from); b = bufs; next = nexts; #if 0 while (n_left_from >= 4) { /* Prefetch next iteration. */ if (PREDICT_TRUE (n_left_from >= 8)) { vlib_prefetch_buffer_header (b[4], STORE); vlib_prefetch_buffer_header (b[5], STORE); vlib_prefetch_buffer_header (b[6], STORE); vlib_prefetch_buffer_header (b[7], STORE); CLIB_PREFETCH (b[4]->data, CLIB_CACHE_LINE_BYTES, STORE); CLIB_PREFETCH (b[5]->data, CLIB_CACHE_LINE_BYTES, STORE); CLIB_PREFETCH (b[6]->data, CLIB_CACHE_LINE_BYTES, STORE); CLIB_PREFETCH (b[7]->data, CLIB_CACHE_LINE_BYTES, STORE); } /* $$$$ process 4x pkts right here */ next[0] = 0; next[1] = 0; next[2] = 0; next[3] = 0; if (is_trace) { if (b[0]->flags & VLIB_BUFFER_IS_TRACED) { ct6_trace_t *t = vlib_add_trace (vm, node, b[0], sizeof (*t)); t->next_index = next[0]; t->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_RX]; } if (b[1]->flags & VLIB_BUFFER_IS_TRACED) { ct6_trace_t *t = vlib_add_trace (vm, node, b[1], sizeof (*t)); t->next_index = next[1]; t->sw_if_index = vnet_buffer (b[1])->sw_if_index[VLIB_RX]; } if (b[2]->flags & VLIB_BUFFER_IS_TRACED) { ct6_trace_t *t = vlib_add_trace (vm, node, b[2], sizeof (*t)); t->next_index = next[2]; t->sw_if_index = vnet_buffer (b[2])->sw_if_index[VLIB_RX]; } if (b[3]->flags & VLIB_BUFFER_IS_TRACED) { ct6_trace_t *t = vlib_add_trace (vm, node, b[3], sizeof (*t)); t->next_index = next[3]; t->sw_if_index = vnet_buffer (b[3])->sw_if_index[VLIB_RX]; } } b += 4; next += 4; n_left_from -= 4; } #endif while (n_left_from > 0) { clib_bihash_kv_48_8_t kvp0; ct6_session_key_t *key0; ct6_session_t *s0; u32 session_index0 = ~0; u32 next0, delta0; ethernet_header_t *e0; ip6_header_t *ip0; udp_header_t *udp0; /* $$$ Set to 0 for pg testing */ if (1) { vnet_feature_next (&next0, b[0]); next[0] = next0; } else next[0] = CT6_IN2OUT_NEXT_DROP; /* * This is an output feature which runs at the last possible * moment. Assume an ethernet header. Make sure the packet is * actually ipv6 before we do anything else. * * Unfortunately, we have to re-parse the L2 header. */ e0 = vlib_buffer_get_current (b[0]); delta0 = sizeof (*e0); delta0 += (e0->type == clib_net_to_host_u16 (ETHERNET_TYPE_VLAN)) ? 4 : 0; delta0 += (e0->type == clib_net_to_host_u16 (ETHERNET_TYPE_DOT1AD)) ? 8 : 0; if (PREDICT_TRUE (delta0 == sizeof (*e0))) { if (e0->type != clib_host_to_net_u16 (ETHERNET_TYPE_IP6)) goto trace0; } else { u16 *tagged_etype_ptr = vlib_buffer_get_current (b[0]) + delta0 - 2; if (*tagged_etype_ptr != clib_host_to_net_u16 (ETHERNET_TYPE_IP6)) goto trace0; } ip0 = (ip6_header_t *) (vlib_buffer_get_current (b[0]) + delta0); /* * Pass non-global unicast traffic */ if (PREDICT_FALSE (!ip6_address_is_global_unicast (&ip0->src_address) || !ip6_address_is_global_unicast (&ip0->src_address))) goto trace0; /* Pass non-udp, non-tcp traffic */ if (PREDICT_FALSE (ip0->protocol != IP_PROTOCOL_TCP && ip0->protocol != IP_PROTOCOL_UDP)) goto trace0; udp0 = ip6_next_header (ip0); /* * See if we know about this flow. * Key set up for the out2in path, the performant case */ key0 = (ct6_session_key_t *) & kvp0; clib_memcpy_fast (&key0->src, &ip0->dst_address, sizeof (ip6_address_t)); clib_memcpy_fast (&key0->dst, &ip0->src_address, sizeof (ip6_address_t)); key0->as_u64[4] = 0; key0->as_u64[5] = 0; key0->sport = udp0->dst_port; key0->dport = udp0->src_port; key0->proto = ip0->protocol; /* Need to create a new session? */ if (clib_bihash_search_48_8 (&cmp->session_hash, &kvp0, &kvp0) < 0) { s0 = ct6_create_or_recycle_session (cmp, &kvp0, now, my_thread_index, &recycled, &created); session_index0 = kvp0.value; } else { s0 = pool_elt_at_index (cmp->sessions[my_thread_index], kvp0.value); session_index0 = kvp0.value; ct6_update_session_hit (cmp, s0, now); } trace0: if (is_trace) { if (b[0]->flags & VLIB_BUFFER_IS_TRACED) { ct6_in2out_trace_t *t = vlib_add_trace (vm, node, b[0], sizeof (*t)); t->next_index = next[0]; t->sw_if_index = vnet_buffer (b[0])->sw_if_index[VLIB_RX]; t->session_index = session_index0; } } b += 1; next += 1; n_left_from -= 1; } vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors); vlib_node_increment_counter (vm, node->node_index, CT6_IN2OUT_ERROR_PROCESSED, frame->n_vectors); vlib_node_increment_counter (vm, node->node_index, CT6_IN2OUT_ERROR_CREATED, created); vlib_node_increment_counter (vm, node->node_index, CT6_IN2OUT_ERROR_RECYCLED, recycled); return frame->n_vectors; } VLIB_NODE_FN (ct6_in2out_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { if (PREDICT_FALSE (node->flags & VLIB_NODE_FLAG_TRACE)) return ct6_in2out_inline (vm, node, frame, 1 /* is_trace */ ); else return ct6_in2out_inline (vm, node, frame, 0 /* is_trace */ ); } /* *INDENT-OFF* */ #ifndef CLIB_MARCH_VARIANT VLIB_REGISTER_NODE (ct6_in2out_node) = { .name = "ct6-in2out", .vector_size = sizeof (u32), .format_trace = format_ct6_in2out_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(ct6_in2out_error_strings), .error_strings = ct6_in2out_error_strings, .n_next_nodes = CT6_IN2OUT_N_NEXT, /* edit / add dispositions here */ .next_nodes = { [CT6_IN2OUT_NEXT_DROP] = "error-drop", }, .unformat_buffer = unformat_ethernet_header, }; #endif /* CLIB_MARCH_VARIANT */ /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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