vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2019-11-05	misc: Fix python scripts shebang line	Renato Botelho do Couto	1	-1/+1
2019-06-20	buffers: fix crash	Klement Sekera	1	-0/+29

/* * Copyright (c) 2018 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 <plugins/gbp/gbp.h> #include <vnet/l2/l2_input.h> #define foreach_gbp_fwd \ _(DROP, "drop") \ _(OUTPUT, "output") typedef enum { #define _(sym,str) GBP_FWD_ERROR_##sym, foreach_gbp_fwd #undef _ GBP_FWD_N_ERROR, } gbp_fwd_error_t; static char *gbp_fwd_error_strings[] = { #define _(sym,string) string, foreach_gbp_fwd #undef _ }; typedef enum { #define _(sym,str) GBP_FWD_NEXT_##sym, foreach_gbp_fwd #undef _ GBP_FWD_N_NEXT, } gbp_fwd_next_t; /** * per-packet trace data */ typedef struct gbp_fwd_trace_t_ { /* per-pkt trace data */ sclass_t sclass; u32 sw_if_index; } gbp_fwd_trace_t; VLIB_NODE_FN (gbp_fwd_node) (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_left_from, *from, *to_next; u32 next_index; next_index = 0; n_left_from = frame->n_vectors; from = vlib_frame_vector_args (frame); while (n_left_from > 0) { u32 n_left_to_next; vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while (n_left_from > 0 && n_left_to_next > 0) { u32 bi0, sw_if_index0; gbp_fwd_next_t next0; vlib_buffer_t *b0; sclass_t sclass0; next0 = GBP_FWD_NEXT_DROP; bi0 = from[0]; to_next[0] = bi0; from += 1; to_next += 1; n_left_from -= 1; n_left_to_next -= 1; b0 = vlib_get_buffer (vm, bi0); /* * lookup the uplink based on src EPG */ sclass0 = vnet_buffer2 (b0)->gbp.sclass; sw_if_index0 = gbp_epg_itf_lookup_sclass (sclass0); if (~0 != sw_if_index0) { vnet_buffer (b0)->sw_if_index[VLIB_TX] = sw_if_index0; next0 = GBP_FWD_NEXT_OUTPUT; } /* * else * don't know the uplink interface for this EPG => drop */ if (PREDICT_FALSE ((b0->flags & VLIB_BUFFER_IS_TRACED))) { gbp_fwd_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t)); t->sclass = sclass0; t->sw_if_index = sw_if_index0; } /* verify speculative enqueue, maybe switch current next frame */ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, bi0, next0); } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } return frame->n_vectors; } /* packet trace format function */ static u8 * format_gbp_fwd_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 *); gbp_fwd_trace_t *t = va_arg (*args, gbp_fwd_trace_t *); s = format (s, "sclass:%d", t->sclass); return s; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (gbp_fwd_node) = { .name = "gbp-fwd", .vector_size = sizeof (u32), .format_trace = format_gbp_fwd_trace, .type = VLIB_NODE_TYPE_INTERNAL, .n_errors = ARRAY_LEN(gbp_fwd_error_strings), .error_strings = gbp_fwd_error_strings, .n_next_nodes = GBP_FWD_N_NEXT, .next_nodes = { [GBP_FWD_NEXT_DROP] = "error-drop", [GBP_FWD_NEXT_OUTPUT] = "l2-output", }, }; /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */