vpp - Vector Packet Processing

Age	Commit message (Expand)	Author	Files	Lines
2018-03-14	Improve l2_macs_events API to provide MAC move information	John Lo	1	-2/+7
2017-10-09	TEST,L2-FIB:refactor test-removing shared state	Eyal Bari	1	-179/+135
2017-10-03	L2FIB,TEST:add max macs in event test	eyal bari	1	-0/+22
2017-10-02	L2-FIB:add mac learn events test	Eyal Bari	1	-0/+18
2017-06-19	L2FWD:fix seq_num overwritten + validate l2fib entries when forwarding	Eyal Bari	1	-3/+0
2017-06-12	L2FIB:fix crash in show with deleted subif entries	Eyal Bari	1	-0/+3
2017-05-24	TEST/L2BD:fix flush tests	Eyal Bari	1	-66/+107
2017-05-22	Skip L2 FIB flush tests	Neale Ranns	1	-0/+9
2017-05-16	L2FIB: add flush test	Eyal Bari	1	-103/+198
2017-01-11	make test: improve documentation and PEP8 compliance	Klement Sekera	1	-5/+6
2016-12-23	make test: improve handling of packet captures	Klement Sekera	1	-7/+3
2016-12-16	make test: improve robustness and performance	Klement Sekera	1	-11/+3
2016-11-23	CSIT-473: L2 FIB tests	Jan	1	-0/+390

/* * Copyright (c) 2011-2016 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. */ /** * @file * @brief BFD global declarations */ #ifndef __included_bfd_main_h__ #define __included_bfd_main_h__ #include <vppinfra/timing_wheel.h> #include <vnet/vnet.h> #include <vnet/bfd/bfd_protocol.h> #include <vnet/bfd/bfd_udp.h> #define foreach_bfd_mode(F) \ F (asynchronous) \ F (demand) typedef enum { #define F(x) BFD_MODE_##x, foreach_bfd_mode (F) #undef F } bfd_mode_e; typedef struct { /* global configuration key ID */ u32 conf_key_id; /* keeps track of how many sessions reference this key */ u32 use_count; /* * key data directly usable for bfd purposes - already padded with zeroes * (so we don't need the actual length) */ u8 key[20]; /* authentication type for this key */ bfd_auth_type_e auth_type; } bfd_auth_key_t; #define foreach_bfd_poll_state(F) \ F (NOT_NEEDED) \ F (NEEDED) \ F (IN_PROGRESS) \ F (IN_PROGRESS_AND_QUEUED) typedef enum { #define F(x) BFD_POLL_##x, foreach_bfd_poll_state (F) #undef F } bfd_poll_state_e; typedef struct bfd_session_s { /* index in bfd_main.sessions pool */ u32 bs_idx; /* session state */ bfd_state_e local_state; /* local diagnostics */ bfd_diag_code_e local_diag; /* remote session state */ bfd_state_e remote_state; /* local discriminator */ u32 local_discr; /* remote discriminator */ u32 remote_discr; /* configured desired min tx interval (microseconds) */ u32 config_desired_min_tx_usec; /* configured desired min tx interval (clocks) */ u64 config_desired_min_tx_clocks; /* effective desired min tx interval (clocks) */ u64 effective_desired_min_tx_clocks; /* configured required min rx interval (microseconds) */ u32 config_required_min_rx_usec; /* configured required min rx interval (clocks) */ u64 config_required_min_rx_clocks; /* effective required min rx interval (clocks) */ u64 effective_required_min_rx_clocks; /* remote min rx interval (microseconds) */ u64 remote_min_rx_usec; /* remote min rx interval (clocks) */ u64 remote_min_rx_clocks; /* remote min echo rx interval (microseconds) */ u64 remote_min_echo_rx_usec; /* remote min echo rx interval (clocks) */ u64 remote_min_echo_rx_clocks; /* remote desired min tx interval (clocks) */ u64 remote_desired_min_tx_clocks; /* configured detect multiplier */ u8 local_detect_mult; /* 1 if remote system sets demand mode, 0 otherwise */ u8 remote_demand; /* remote detect multiplier */ u8 remote_detect_mult; /* 1 is echo function is active, 0 otherwise */ u8 echo; /* set to value of timer in timing wheel, 0 if never set */ u64 wheel_time_clocks; /* transmit interval */ u64 transmit_interval_clocks; /* next time at which to transmit a packet */ u64 tx_timeout_clocks; /* timestamp of last packet transmitted */ u64 last_tx_clocks; /* timestamp of last packet received */ u64 last_rx_clocks; /* transmit interval for echo packets */ u64 echo_transmit_interval_clocks; /* next time at which to transmit echo packet */ u64 echo_tx_timeout_clocks; /* timestamp of last echo packet transmitted */ u64 echo_last_tx_clocks; /* timestamp of last echo packet received */ u64 echo_last_rx_clocks; /* secret used for calculating/checking checksum of echo packets */ u32 echo_secret; /* detection time */ u64 detection_time_clocks; /* state info regarding poll sequence */ bfd_poll_state_e poll_state; /* * helper for delayed poll sequence - marks either start of running poll * sequence or timeout, after which we can start the next poll sequnce */ u64 poll_state_start_or_timeout_clocks; /* authentication information */ struct { /* current key in use */ bfd_auth_key_t *curr_key; /* * set to next key to use if delayed switch is enabled - in that case * the key is switched when first incoming packet is signed with next_key */ bfd_auth_key_t *next_key; /* sequence number incremented occasionally or always (if meticulous) */ u32 local_seq_number; /* remote sequence number */ u32 remote_seq_number; /* set to 1 if remote sequence number is known */ u8 remote_seq_number_known; /* current key ID sent out in bfd packet */ u8 curr_bfd_key_id; /* key ID to use when switched to next_key */ u8 next_bfd_key_id; /* * set to 1 if delayed action is pending, which might be activation * of authentication, change of key or deactivation */ u8 is_delayed; } auth; /* transport type for this session */ bfd_transport_e transport; /* union of transport-specific data */ union { bfd_udp_session_t udp; }; } bfd_session_t; typedef struct { /* pool of bfd sessions context data */ bfd_session_t *sessions; /* timing wheel for scheduling timeouts */ timing_wheel_t wheel; /* timing wheel inaccuracy, in clocks */ u64 wheel_inaccuracy; /* hashmap - bfd session by discriminator */ u32 *session_by_disc; /* background process node index */ u32 bfd_process_node_index; /* convenience variables */ vlib_main_t *vlib_main; vnet_main_t *vnet_main; /* cpu clocks per second */ f64 cpu_cps; /* default desired min tx in clocks */ u64 default_desired_min_tx_clocks; /* minimum required min rx while echo function is active - clocks */ u64 min_required_min_rx_while_echo_clocks; /* for generating random numbers */ u32 random_seed; /* pool of authentication keys */ bfd_auth_key_t *auth_keys; /* hashmap - index in pool auth_keys by conf_key_id */ u32 *auth_key_by_conf_key_id; } bfd_main_t; extern bfd_main_t bfd_main; /* Packet counters */ #define foreach_bfd_error(F) \ F (NONE, "good bfd packets (processed)") \ F (BAD, "invalid bfd packets") \ F (DISABLED, "bfd packets received on disabled interfaces") typedef enum { #define F(sym, str) BFD_ERROR_##sym, foreach_bfd_error (F) #undef F BFD_N_ERROR, } bfd_error_t; /* bfd packet trace capture */ typedef struct { u32 len; u8 data[400]; } bfd_input_trace_t; enum { BFD_EVENT_RESCHEDULE = 1, BFD_EVENT_NEW_SESSION, BFD_EVENT_CONFIG_CHANGED, } bfd_process_event_e; /* echo packet structure */ /* *INDENT-OFF* */ typedef CLIB_PACKED (struct { /* local discriminator */ u32 discriminator; /* expire time of this packet - clocks */ u64 expire_time_clocks; /* checksum - based on discriminator, local secret and expire time */ u64 checksum; }) bfd_echo_pkt_t; /* *INDENT-ON* */ u8 *bfd_input_format_trace (u8 * s, va_list * args); bfd_session_t *bfd_get_session (bfd_main_t * bm, bfd_transport_e t); void bfd_put_session (bfd_main_t * bm, bfd_session_t * bs); bfd_session_t *bfd_find_session_by_idx (bfd_main_t * bm, uword bs_idx); bfd_session_t *bfd_find_session_by_disc (bfd_main_t * bm, u32 disc); void bfd_session_start (bfd_main_t * bm, bfd_session_t * bs); void bfd_consume_pkt (bfd_main_t * bm, const bfd_pkt_t * bfd, u32 bs_idx); int bfd_consume_echo_pkt (bfd_main_t * bm, vlib_buffer_t * b); int bfd_verify_pkt_common (const bfd_pkt_t * pkt); int bfd_verify_pkt_auth (const bfd_pkt_t * pkt, u16 pkt_size, bfd_session_t * bs); void bfd_event (bfd_main_t * bm, bfd_session_t * bs); void bfd_init_final_control_frame (vlib_main_t * vm, vlib_buffer_t * b, bfd_main_t * bm, bfd_session_t * bs); u8 *format_bfd_session (u8 * s, va_list * args); void bfd_session_set_flags (bfd_session_t * bs, u8 admin_up_down); unsigned bfd_auth_type_supported (bfd_auth_type_e auth_type); vnet_api_error_t bfd_auth_activate (bfd_session_t * bs, u32 conf_key_id, u8 bfd_key_id, u8 is_delayed); vnet_api_error_t bfd_auth_deactivate (bfd_session_t * bs, u8 is_delayed); vnet_api_error_t bfd_session_set_params (bfd_main_t * bm, bfd_session_t * bs, u32 desired_min_tx_usec, u32 required_min_rx_usec, u8 detect_mult); #define USEC_PER_MS 1000LL #define USEC_PER_SECOND (1000 * USEC_PER_MS) /* default, slow transmission interval for BFD packets, per spec at least 1s */ #define BFD_DEFAULT_DESIRED_MIN_TX_USEC USEC_PER_SECOND /* * minimum required min rx set locally when echo function is used, per spec * should be set to at least 1s */ #define BFD_REQUIRED_MIN_RX_USEC_WHILE_ECHO USEC_PER_SECOND #endif /* __included_bfd_main_h__ */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */