+++ /dev/null
-/*
- * Copyright (c) 2015 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.
- */
-/*
- * pg.h: VLIB packet generator
- *
- * Copyright (c) 2008 Eliot Dresselhaus
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#ifndef included_vlib_pg_h
-#define included_vlib_pg_h
-
-#include <vlib/vlib.h> /* for VLIB_N_RX_TX */
-#include <vnet/pg/edit.h>
-#include <vppinfra/fifo.h> /* for buffer_fifo */
-#include <vnet/unix/pcap.h>
-#include <vnet/interface.h>
-
-extern vnet_device_class_t pg_dev_class;
-
-struct pg_main_t;
-struct pg_stream_t;
-
-typedef struct pg_edit_group_t
-{
- /* Edits in this group. */
- pg_edit_t *edits;
-
- /* Vector of non-fixed edits for this group. */
- pg_edit_t *non_fixed_edits;
-
- /* Fixed edits for this group. */
- u8 *fixed_packet_data;
- u8 *fixed_packet_data_mask;
-
- /* Byte offset where packet data begins. */
- u32 start_byte_offset;
-
- /* Number of packet bytes for this edit group. */
- u32 n_packet_bytes;
-
- /* Function to perform miscellaneous edits (e.g. set IP checksum, ...). */
- void (*edit_function) (struct pg_main_t * pg,
- struct pg_stream_t * s,
- struct pg_edit_group_t * g,
- u32 * buffers, u32 n_buffers);
-
- /* Opaque data for edit function's use. */
- uword edit_function_opaque;
-} pg_edit_group_t;
-
-/* Packets are made of multiple buffers chained together.
- This struct keeps track of data per-chain index. */
-typedef struct
-{
- /* Vector of buffer edits for this stream and buffer index. */
- pg_edit_t *edits;
-
- /* Buffers pre-initialized with fixed buffer data for this stream. */
- u32 *buffer_fifo;
-
- /* Buffer free list for this buffer index in stream. */
- u32 free_list_index;
-} pg_buffer_index_t;
-
-typedef struct pg_stream_t
-{
- /* Stream name. */
- u8 *name;
-
- u32 flags;
-
- /* Stream is currently enabled. */
-#define PG_STREAM_FLAGS_IS_ENABLED (1 << 0)
-#define PG_STREAM_FLAGS_DISABLE_BUFFER_RECYCLE (1 << 1)
-
- /* Edit groups are created by each protocol level (e.g. ethernet,
- ip4, tcp, ...). */
- pg_edit_group_t *edit_groups;
-
- pg_edit_type_t packet_size_edit_type;
-
- /* Min/max packet size. */
- u32 min_packet_bytes, max_packet_bytes;
-
- /* Vector of non-fixed edits for this stream.
- All fixed edits are performed and placed into fixed_packet_data. */
- pg_edit_t *non_fixed_edits;
-
- /* Packet data with all fixed edits performed.
- All packets in stream are initialized according with this data.
- Mask specifies which bits of packet data are covered by fixed edits. */
- u8 *fixed_packet_data, *fixed_packet_data_mask;
-
- /* Size to use for buffers. 0 means use buffers big enough
- for max_packet_bytes. */
- u32 buffer_bytes;
-
- /* Last packet length if packet size edit type is increment. */
- u32 last_increment_packet_size;
-
- /* Index into main interface pool for this stream. */
- u32 pg_if_index;
-
- /* Interface used to mark packets for this stream. May be different
- than hw/sw index from pg main interface pool. They will be
- different if this stream is being used generate buffers as if
- they were received on a non-pg interface. For example, suppose you
- are trying to test vlan code and you want to generate buffers that
- appear to come from an ethernet interface. */
- u32 sw_if_index[VLIB_N_RX_TX];
-
- /* Node where stream's buffers get put. */
- u32 node_index;
-
- /* Worker thread index */
- u32 worker_index;
-
- /* Output next index to reach output node from stream input node. */
- u32 next_index;
-
- u32 if_id;
-
- /* Number of packets currently generated. */
- u64 n_packets_generated;
-
- /* Stream is disabled when packet limit is reached.
- Zero means no packet limit. */
- u64 n_packets_limit;
-
- /* Rate for this stream in packets/second.
- Zero means unlimited rate. */
- f64 rate_packets_per_second;
-
- f64 time_last_generate;
-
- f64 packet_accumulator;
-
- pg_buffer_index_t *buffer_indices;
-
- u8 **replay_packet_templates;
- u32 current_replay_packet_index;
-} pg_stream_t;
-
-always_inline void
-pg_buffer_index_free (pg_buffer_index_t * bi)
-{
- vec_free (bi->edits);
- clib_fifo_free (bi->buffer_fifo);
-}
-
-always_inline void
-pg_edit_group_free (pg_edit_group_t * g)
-{
- pg_edit_t *e;
- vec_foreach (e, g->edits) pg_edit_free (e);
- vec_free (g->edits);
- vec_free (g->fixed_packet_data);
- vec_free (g->fixed_packet_data_mask);
-}
-
-always_inline void
-pg_stream_free (pg_stream_t * s)
-{
- pg_edit_group_t *g;
- pg_edit_t *e;
- vec_foreach (e, s->non_fixed_edits) pg_edit_free (e);
- vec_free (s->non_fixed_edits);
- vec_foreach (g, s->edit_groups) pg_edit_group_free (g);
- vec_free (s->edit_groups);
- vec_free (s->fixed_packet_data);
- vec_free (s->fixed_packet_data_mask);
- vec_free (s->name);
-
- {
- pg_buffer_index_t *bi;
- vec_foreach (bi, s->buffer_indices) pg_buffer_index_free (bi);
- vec_free (s->buffer_indices);
- }
-}
-
-always_inline int
-pg_stream_is_enabled (pg_stream_t * s)
-{
- return (s->flags & PG_STREAM_FLAGS_IS_ENABLED) != 0;
-}
-
-always_inline pg_edit_group_t *
-pg_stream_get_group (pg_stream_t * s, u32 group_index)
-{
- return vec_elt_at_index (s->edit_groups, group_index);
-}
-
-always_inline void *
-pg_create_edit_group (pg_stream_t * s,
- int n_edit_bytes, int n_packet_bytes, u32 * group_index)
-{
- pg_edit_group_t *g;
- int n_edits;
-
- vec_add2 (s->edit_groups, g, 1);
- if (group_index)
- *group_index = g - s->edit_groups;
-
- ASSERT (n_edit_bytes % sizeof (pg_edit_t) == 0);
- n_edits = n_edit_bytes / sizeof (pg_edit_t);
- vec_resize (g->edits, n_edits);
-
- g->n_packet_bytes = n_packet_bytes;
-
- return g->edits;
-}
-
-always_inline void *
-pg_add_edits (pg_stream_t * s, int n_edit_bytes, int n_packet_bytes,
- u32 group_index)
-{
- pg_edit_group_t *g = pg_stream_get_group (s, group_index);
- pg_edit_t *e;
- int n_edits;
- ASSERT (n_edit_bytes % sizeof (pg_edit_t) == 0);
- n_edits = n_edit_bytes / sizeof (pg_edit_t);
- vec_add2 (g->edits, e, n_edits);
- g->n_packet_bytes += n_packet_bytes;
- return e;
-}
-
-always_inline void *
-pg_get_edit_group (pg_stream_t * s, u32 group_index)
-{
- pg_edit_group_t *g = pg_stream_get_group (s, group_index);
- return g->edits;
-}
-
-/* Number of bytes for all groups >= given group. */
-always_inline uword
-pg_edit_group_n_bytes (pg_stream_t * s, u32 group_index)
-{
- pg_edit_group_t *g;
- uword n_bytes = 0;
-
- for (g = s->edit_groups + group_index; g < vec_end (s->edit_groups); g++)
- n_bytes += g->n_packet_bytes;
- return n_bytes;
-}
-
-always_inline void
-pg_free_edit_group (pg_stream_t * s)
-{
- uword i = vec_len (s->edit_groups) - 1;
- pg_edit_group_t *g = pg_stream_get_group (s, i);
-
- pg_edit_group_free (g);
- memset (g, 0, sizeof (g[0]));
- _vec_len (s->edit_groups) = i;
-}
-
-typedef struct
-{
- /* TX lock */
- volatile u32 *lockp;
-
- /* VLIB interface indices. */
- u32 hw_if_index, sw_if_index;
-
- /* Identifies stream for this interface. */
- u32 id;
-
- pcap_main_t pcap_main;
- u8 *pcap_file_name;
-} pg_interface_t;
-
-/* Per VLIB node data. */
-typedef struct
-{
- /* Parser function indexed by node index. */
- unformat_function_t *unformat_edit;
-} pg_node_t;
-
-typedef struct pg_main_t
-{
- /* Pool of streams. */
- pg_stream_t *streams;
-
- /* Bitmap indicating which streams are currently enabled. */
- uword **enabled_streams;
-
- /* Hash mapping name -> stream index. */
- uword *stream_index_by_name;
-
- /* Pool of interfaces. */
- pg_interface_t *interfaces;
- uword *if_index_by_if_id;
-
- /* Per VLIB node information. */
- pg_node_t *nodes;
-} pg_main_t;
-
-/* Global main structure. */
-extern pg_main_t pg_main;
-
-/* Global node. */
-extern vlib_node_registration_t pg_input_node;
-
-/* Buffer generator input, output node functions. */
-vlib_node_function_t pg_input, pg_output;
-
-/* Stream add/delete. */
-void pg_stream_del (pg_main_t * pg, uword index);
-void pg_stream_add (pg_main_t * pg, pg_stream_t * s_init);
-
-/* Enable/disable stream. */
-void pg_stream_enable_disable (pg_main_t * pg, pg_stream_t * s,
- int is_enable);
-
-/* Find/create free packet-generator interface index. */
-u32 pg_interface_add_or_get (pg_main_t * pg, uword stream_index);
-
-always_inline pg_node_t *
-pg_get_node (uword node_index)
-{
- pg_main_t *pg = &pg_main;
- vec_validate (pg->nodes, node_index);
- return pg->nodes + node_index;
-}
-
-void pg_edit_group_get_fixed_packet_data (pg_stream_t * s,
- u32 group_index,
- void *fixed_packet_data,
- void *fixed_packet_data_mask);
-
-void pg_enable_disable (u32 stream_index, int is_enable);
-
-typedef struct
-{
- u32 hw_if_index;
- u32 dev_instance;
- u8 is_enabled;
- u8 *pcap_file_name;
- u32 count;
-} pg_capture_args_t;
-
-clib_error_t *pg_capture (pg_capture_args_t * a);
-
-#endif /* included_vlib_pg_h */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
Code Review / vpp.git / blobdiff