srtp: cleanup build and default to disabled - vpp

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author	Florin Coras <fcoras@cisco.com>	2021-05-28 09:06:51 -0700
committer	Dave Wallace <dwallacelf@gmail.com>	2021-06-03 19:08:42 +0000
commit	afb0194b5aba63184edb3ddc34288b5aad4560e2 (patch)
tree	11570a187274a3b75f4f31e428aaa0bbdd865231 /src/vcl/vppcom.c
parent	27777bd89016a057e995b4c3d0447eecebb7b345 (diff)

srtp: cleanup build and default to disabled

Type: fix Signed-off-by: Florin Coras <fcoras@cisco.com> Change-Id: I62fb56257445a05105e556d1ea6cc6280b5eeccc (cherry picked from commit 427feb6fdd8aee373405dbd3a59f69440107b046)

Diffstat (limited to 'src/vcl/vppcom.c')

0 files changed, 0 insertions, 0 deletions

/* *------------------------------------------------------------------ * af_packet.c - linux kernel packet interface * * Copyright (c) 2016 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 <linux/if_packet.h> #include <vlib/vlib.h> #include <vlib/unix/unix.h> #include <vnet/ip/ip.h> #include <vnet/ethernet/ethernet.h> #include <vnet/devices/devices.h> #include <vnet/feature/feature.h> #include <vnet/devices/af_packet/af_packet.h> #define foreach_af_packet_input_error typedef enum { #define _(f,s) AF_PACKET_INPUT_ERROR_##f, foreach_af_packet_input_error #undef _ AF_PACKET_INPUT_N_ERROR, } af_packet_input_error_t; static char *af_packet_input_error_strings[] = { #define _(n,s) s, foreach_af_packet_input_error #undef _ }; typedef struct { u32 next_index; u32 hw_if_index; int block; struct tpacket2_hdr tph; } af_packet_input_trace_t; static u8 * format_af_packet_input_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 *); af_packet_input_trace_t *t = va_arg (*args, af_packet_input_trace_t *); uword indent = format_get_indent (s); s = format (s, "af_packet: hw_if_index %d next-index %d", t->hw_if_index, t->next_index); s = format (s, "\n%Utpacket2_hdr:\n%Ustatus 0x%x len %u snaplen %u mac %u net %u" "\n%Usec 0x%x nsec 0x%x vlan %U" #ifdef TP_STATUS_VLAN_TPID_VALID " vlan_tpid %u" #endif , format_white_space, indent + 2, format_white_space, indent + 4, t->tph.tp_status, t->tph.tp_len, t->tph.tp_snaplen, t->tph.tp_mac, t->tph.tp_net, format_white_space, indent + 4, t->tph.tp_sec, t->tph.tp_nsec, format_ethernet_vlan_tci, t->tph.tp_vlan_tci #ifdef TP_STATUS_VLAN_TPID_VALID , t->tph.tp_vlan_tpid #endif ); return s; } always_inline void buffer_add_to_chain (vlib_main_t * vm, u32 bi, u32 first_bi, u32 prev_bi) { vlib_buffer_t *b = vlib_get_buffer (vm, bi); vlib_buffer_t *first_b = vlib_get_buffer (vm, first_bi); vlib_buffer_t *prev_b = vlib_get_buffer (vm, prev_bi); /* update first buffer */ first_b->total_length_not_including_first_buffer += b->current_length; /* update previous buffer */ prev_b->next_buffer = bi; prev_b->flags |= VLIB_BUFFER_NEXT_PRESENT; /* update current buffer */ b->next_buffer = 0; } always_inline uword af_packet_device_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame, af_packet_if_t * apif) { af_packet_main_t *apm = &af_packet_main; struct tpacket2_hdr *tph; u32 next_index = VNET_DEVICE_INPUT_NEXT_ETHERNET_INPUT; u32 block = 0; u32 rx_frame; u32 n_free_bufs; u32 n_rx_packets = 0; u32 n_rx_bytes = 0; u32 *to_next = 0; u32 block_size = apif->rx_req->tp_block_size; u32 frame_size = apif->rx_req->tp_frame_size; u32 frame_num = apif->rx_req->tp_frame_nr; u8 *block_start = apif->rx_ring + block * block_size; uword n_trace = vlib_get_trace_count (vm, node); u32 thread_index = vlib_get_thread_index (); u32 n_buffer_bytes = vlib_buffer_free_list_buffer_size (vm, VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); u32 min_bufs = apif->rx_req->tp_frame_size / n_buffer_bytes; if (apif->per_interface_next_index != ~0) next_index = apif->per_interface_next_index; n_free_bufs = vec_len (apm->rx_buffers[thread_index]); if (PREDICT_FALSE (n_free_bufs < VLIB_FRAME_SIZE)) { vec_validate (apm->rx_buffers[thread_index], VLIB_FRAME_SIZE + n_free_bufs - 1); n_free_bufs += vlib_buffer_alloc (vm, &apm->rx_buffers[thread_index][n_free_bufs], VLIB_FRAME_SIZE); _vec_len (apm->rx_buffers[thread_index]) = n_free_bufs; } rx_frame = apif->next_rx_frame; tph = (struct tpacket2_hdr *) (block_start + rx_frame * frame_size); while ((tph->tp_status & TP_STATUS_USER) && (n_free_bufs > min_bufs)) { vlib_buffer_t *b0 = 0, *first_b0 = 0; u32 next0 = next_index; u32 n_left_to_next; vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next); while ((tph->tp_status & TP_STATUS_USER) && (n_free_bufs > min_bufs) && n_left_to_next) { u32 data_len = tph->tp_snaplen; u32 offset = 0; u32 bi0 = 0, first_bi0 = 0, prev_bi0; while (data_len) { /* grab free buffer */ u32 last_empty_buffer = vec_len (apm->rx_buffers[thread_index]) - 1; prev_bi0 = bi0; bi0 = apm->rx_buffers[thread_index][last_empty_buffer]; b0 = vlib_get_buffer (vm, bi0); _vec_len (apm->rx_buffers[thread_index]) = last_empty_buffer; n_free_bufs--; /* copy data */ u32 bytes_to_copy = data_len > n_buffer_bytes ? n_buffer_bytes : data_len; b0->current_data = 0; clib_memcpy (vlib_buffer_get_current (b0), (u8 *) tph + tph->tp_mac + offset, bytes_to_copy); /* fill buffer header */ b0->current_length = bytes_to_copy; if (offset == 0) { b0->total_length_not_including_first_buffer = 0; b0->flags = VLIB_BUFFER_TOTAL_LENGTH_VALID; vnet_buffer (b0)->sw_if_index[VLIB_RX] = apif->sw_if_index; vnet_buffer (b0)->sw_if_index[VLIB_TX] = (u32) ~ 0; first_bi0 = bi0; first_b0 = vlib_get_buffer (vm, first_bi0); } else buffer_add_to_chain (vm, bi0, first_bi0, prev_bi0); offset += bytes_to_copy; data_len -= bytes_to_copy; } n_rx_packets++; n_rx_bytes += tph->tp_snaplen; to_next[0] = first_bi0; to_next += 1; n_left_to_next--; /* trace */ VLIB_BUFFER_TRACE_TRAJECTORY_INIT (first_b0); if (PREDICT_FALSE (n_trace > 0)) { af_packet_input_trace_t *tr; vlib_trace_buffer (vm, node, next0, first_b0, /* follow_chain */ 0); vlib_set_trace_count (vm, node, --n_trace); tr = vlib_add_trace (vm, node, first_b0, sizeof (*tr)); tr->next_index = next0; tr->hw_if_index = apif->hw_if_index; clib_memcpy (&tr->tph, tph, sizeof (struct tpacket2_hdr)); } /* redirect if feature path enabled */ vnet_feature_start_device_input_x1 (apif->sw_if_index, &next0, b0); /* enque and take next packet */ vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next, n_left_to_next, first_bi0, next0); /* next packet */ tph->tp_status = TP_STATUS_KERNEL; rx_frame = (rx_frame + 1) % frame_num; tph = (struct tpacket2_hdr *) (block_start + rx_frame * frame_size); } vlib_put_next_frame (vm, node, next_index, n_left_to_next); } apif->next_rx_frame = rx_frame; vlib_increment_combined_counter (vnet_get_main ()->interface_main.combined_sw_if_counters + VNET_INTERFACE_COUNTER_RX, vlib_get_thread_index (), apif->hw_if_index, n_rx_packets, n_rx_bytes); vnet_device_increment_rx_packets (thread_index, n_rx_packets); return n_rx_packets; } static uword af_packet_input_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { u32 n_rx_packets = 0; af_packet_main_t *apm = &af_packet_main; vnet_device_input_runtime_t *rt = (void *) node->runtime_data; vnet_device_and_queue_t *dq; foreach_device_and_queue (dq, rt->devices_and_queues) { af_packet_if_t *apif; apif = vec_elt_at_index (apm->interfaces, dq->dev_instance); if (apif->is_admin_up) n_rx_packets += af_packet_device_input_fn (vm, node, frame, apif); } return n_rx_packets; } /* *INDENT-OFF* */ VLIB_REGISTER_NODE (af_packet_input_node) = { .function = af_packet_input_fn, .name = "af-packet-input", .sibling_of = "device-input", .format_trace = format_af_packet_input_trace, .type = VLIB_NODE_TYPE_INPUT, .state = VLIB_NODE_STATE_INTERRUPT, .n_errors = AF_PACKET_INPUT_N_ERROR, .error_strings = af_packet_input_error_strings, }; VLIB_NODE_FUNCTION_MULTIARCH (af_packet_input_node, af_packet_input_fn) /* *INDENT-ON* */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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