diff options
Diffstat (limited to 'freebsd/sys/netinet/sctp_structs.h')
| -rw-r--r-- | freebsd/sys/netinet/sctp_structs.h | 279 |
1 files changed, 206 insertions, 73 deletions
diff --git a/freebsd/sys/netinet/sctp_structs.h b/freebsd/sys/netinet/sctp_structs.h index 94d0395c..abecdabd 100644 --- a/freebsd/sys/netinet/sctp_structs.h +++ b/freebsd/sys/netinet/sctp_structs.h @@ -1,15 +1,17 @@ /*- * Copyright (c) 2001-2008, by Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. + * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * a) Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. + * this list of conditions and the following disclaimer. * * b) Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the distribution. + * the documentation and/or other materials provided with the distribution. * * c) Neither the name of Cisco Systems, Inc. nor the names of its * contributors may be used to endorse or promote products derived @@ -28,13 +30,11 @@ * THE POSSIBILITY OF SUCH DAMAGE. */ -/* $KAME: sctp_structs.h,v 1.13 2005/03/06 16:04:18 itojun Exp $ */ - #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); -#ifndef __sctp_structs_h__ -#define __sctp_structs_h__ +#ifndef _NETINET_SCTP_STRUCTS_H_ +#define _NETINET_SCTP_STRUCTS_H_ #include <netinet/sctp_os.h> #include <netinet/sctp_header.h> @@ -77,8 +77,8 @@ TAILQ_HEAD(sctpnetlisthead, sctp_nets); struct sctp_stream_reset_list { TAILQ_ENTRY(sctp_stream_reset_list) next_resp; uint32_t tsn; - int number_entries; - struct sctp_stream_reset_out_request req; + uint32_t number_entries; + uint16_t list_of_streams[]; }; TAILQ_HEAD(sctp_resethead, sctp_stream_reset_list); @@ -106,6 +106,31 @@ typedef void (*asoc_func) (struct sctp_inpcb *, struct sctp_tcb *, void *ptr, typedef int (*inp_func) (struct sctp_inpcb *, void *ptr, uint32_t val); typedef void (*end_func) (void *ptr, uint32_t val); +#if defined(__FreeBSD__) && defined(SCTP_MCORE_INPUT) && defined(SMP) +/* whats on the mcore control struct */ +struct sctp_mcore_queue { + TAILQ_ENTRY(sctp_mcore_queue) next; + struct vnet *vn; + struct mbuf *m; + int off; + int v6; +}; + +TAILQ_HEAD(sctp_mcore_qhead, sctp_mcore_queue); + +struct sctp_mcore_ctrl { + SCTP_PROCESS_STRUCT thread_proc; + struct sctp_mcore_qhead que; + struct mtx core_mtx; + struct mtx que_mtx; + int running; + int cpuid; +}; + + +#endif + + struct sctp_iterator { TAILQ_ENTRY(sctp_iterator) sctp_nxt_itr; struct vnet *vn; @@ -158,9 +183,8 @@ struct iterator_control { uint32_t iterator_flags; }; -#define SCTP_ITERATOR_MUST_EXIT 0x00000001 -#define SCTP_ITERATOR_STOP_CUR_IT 0x00000002 -#define SCTP_ITERATOR_STOP_CUR_INP 0x00000004 +#define SCTP_ITERATOR_STOP_CUR_IT 0x00000004 +#define SCTP_ITERATOR_STOP_CUR_INP 0x00000008 struct sctp_net_route { sctp_rtentry_t *ro_rt; @@ -192,6 +216,29 @@ struct htcp { uint32_t lasttime; }; +struct rtcc_cc { + struct timeval tls; /* The time we started the sending */ + uint64_t lbw; /* Our last estimated bw */ + uint64_t lbw_rtt; /* RTT at bw estimate */ + uint64_t bw_bytes; /* The total bytes since this sending began */ + uint64_t bw_tot_time; /* The total time since sending began */ + uint64_t new_tot_time; /* temp holding the new value */ + uint64_t bw_bytes_at_last_rttc; /* What bw_bytes was at last rtt calc */ + uint32_t cwnd_at_bw_set;/* Cwnd at last bw saved - lbw */ + uint32_t vol_reduce; /* cnt of voluntary reductions */ + uint16_t steady_step; /* The number required to be in steady state */ + uint16_t step_cnt; /* The current number */ + uint8_t ret_from_eq; /* When all things are equal what do I return + * 0/1 - 1 no cc advance */ + uint8_t use_dccc_ecn; /* Flag to enable DCCC ECN */ + uint8_t tls_needs_set; /* Flag to indicate we need to set tls 0 or 1 + * means set at send 2 not */ + uint8_t last_step_state;/* Last state if steady state stepdown is on */ + uint8_t rtt_set_this_sack; /* Flag saying this sack had RTT calc + * on it */ + uint8_t last_inst_ind; /* Last saved inst indication */ +}; + struct sctp_nets { TAILQ_ENTRY(sctp_nets) sctp_next; /* next link */ @@ -201,6 +248,7 @@ struct sctp_nets { * structure shared by all. */ struct sctp_timer pmtu_timer; + struct sctp_timer hb_timer; /* * The following two in combination equate to a route entry for v6 @@ -211,19 +259,25 @@ struct sctp_nets { /* mtu discovered so far */ uint32_t mtu; uint32_t ssthresh; /* not sure about this one for split */ - + uint32_t last_cwr_tsn; + uint32_t cwr_window_tsn; + uint32_t ecn_ce_pkt_cnt; + uint32_t lost_cnt; /* smoothed average things for RTT and RTO itself */ int lastsa; int lastsv; - int rtt; /* last measured rtt value in ms */ + uint64_t rtt; /* last measured rtt value in us */ unsigned int RTO; /* This is used for SHUTDOWN/SHUTDOWN-ACK/SEND or INIT timers */ struct sctp_timer rxt_timer; - struct sctp_timer fr_timer; /* for early fr */ /* last time in seconds I sent to it */ struct timeval last_sent_time; + union cc_control_data { + struct htcp htcp_ca; /* JRS - struct used in HTCP algorithm */ + struct rtcc_cc rtcc; /* rtcc module cc stuff */ + } cc_mod; int ref_count; /* Congestion stats per destination */ @@ -234,8 +288,9 @@ struct sctp_nets { uint32_t flight_size; uint32_t cwnd; /* actual cwnd */ uint32_t prev_cwnd; /* cwnd before any processing */ + uint32_t ecn_prev_cwnd; /* ECN prev cwnd at first ecn_echo seen in new + * window */ uint32_t partial_bytes_acked; /* in CA tracks when to incr a MTU */ - uint32_t prev_rtt; /* tracking variables to avoid the aloc/free in sack processing */ unsigned int net_ack; unsigned int net_ack2; @@ -263,19 +318,24 @@ struct sctp_nets { uint32_t fast_recovery_tsn; uint32_t heartbeat_random1; uint32_t heartbeat_random2; - uint32_t tos_flowlabel; +#ifdef INET6 + uint32_t flowlabel; +#endif + uint8_t dscp; struct timeval start_time; /* time when this net was created */ - uint32_t marked_retrans;/* number or DATA chunks marked for timer * based retransmissions */ uint32_t marked_fastretrans; + uint32_t heart_beat_delay; /* Heart Beat delay in ms */ /* if this guy is ok or not ... status */ uint16_t dest_state; - /* number of transmit failures to down this guy */ + /* number of timeouts to consider the destination unreachable */ uint16_t failure_threshold; - /* error stats on destination */ + /* number of timeouts to consider the destination potentially failed */ + uint16_t pf_threshold; + /* error stats on the destination */ uint16_t error_count; /* UDP port number in case of UDP tunneling */ uint16_t port; @@ -315,8 +375,12 @@ struct sctp_nets { uint8_t window_probe; /* Doing a window probe? */ uint8_t RTO_measured; /* Have we done the first measure */ uint8_t last_hs_used; /* index into the last HS table entry we used */ - /* JRS - struct used in HTCP algorithm */ - struct htcp htcp_ca; + uint8_t lan_type; + uint8_t rto_needed; + uint32_t flowid; +#ifdef INVARIANTS + uint8_t flowidset; +#endif }; @@ -326,10 +390,7 @@ struct sctp_data_chunkrec { uint16_t stream_number; /* the stream number of this guy */ uint32_t payloadtype; uint32_t context; /* from send */ - - /* ECN Nonce: Nonce Value for this chunk */ - uint8_t ect_nonce; - uint8_t fwd_tsn_cnt; + uint32_t cwnd_at_send; /* * part of the Highest sacked algorithm to be able to stroke counts * on ones that are FR'd. @@ -341,6 +402,7 @@ struct sctp_data_chunkrec { * outbound holds sending flags for PR-SCTP. */ uint8_t state_flags; uint8_t chunk_was_revoked; + uint8_t fwd_tsn_cnt; }; TAILQ_HEAD(sctpchunk_listhead, sctp_tmit_chunk); @@ -350,7 +412,7 @@ TAILQ_HEAD(sctpchunk_listhead, sctp_tmit_chunk); #define CHUNK_FLAGS_PR_SCTP_BUF SCTP_PR_SCTP_BUF #define CHUNK_FLAGS_PR_SCTP_RTX SCTP_PR_SCTP_RTX -/* The upper byte is used a a bit mask */ +/* The upper byte is used as a bit mask */ #define CHUNK_FLAGS_FRAGMENT_OK 0x0100 struct chk_id { @@ -446,13 +508,13 @@ struct sctp_stream_queue_pending { struct timeval ts; struct sctp_nets *net; TAILQ_ENTRY(sctp_stream_queue_pending) next; + TAILQ_ENTRY(sctp_stream_queue_pending) ss_next; uint32_t length; uint32_t timetolive; uint32_t ppid; uint32_t context; uint16_t sinfo_flags; uint16_t stream; - uint16_t strseq; uint16_t act_flags; uint16_t auth_keyid; uint8_t holds_key_ref; @@ -476,13 +538,57 @@ struct sctp_stream_in { uint8_t delivery_started; }; -/* This struct is used to track the traffic on outbound streams */ TAILQ_HEAD(sctpwheel_listhead, sctp_stream_out); +TAILQ_HEAD(sctplist_listhead, sctp_stream_queue_pending); + +/* Round-robin schedulers */ +struct ss_rr { + /* next link in wheel */ + TAILQ_ENTRY(sctp_stream_out) next_spoke; +}; + +/* Priority scheduler */ +struct ss_prio { + /* next link in wheel */ + TAILQ_ENTRY(sctp_stream_out) next_spoke; + /* priority id */ + uint16_t priority; +}; + +/* Fair Bandwidth scheduler */ +struct ss_fb { + /* next link in wheel */ + TAILQ_ENTRY(sctp_stream_out) next_spoke; + /* stores message size */ + int32_t rounds; +}; + +/* + * This union holds all data necessary for + * different stream schedulers. + */ +union scheduling_data { + struct sctpwheel_listhead out_wheel; + struct sctplist_listhead out_list; +}; + +/* + * This union holds all parameters per stream + * necessary for different stream schedulers. + */ +union scheduling_parameters { + struct ss_rr rr; + struct ss_prio prio; + struct ss_fb fb; +}; + +/* This struct is used to track the traffic on outbound streams */ struct sctp_stream_out { struct sctp_streamhead outqueue; - TAILQ_ENTRY(sctp_stream_out) next_spoke; /* next link in wheel */ + union scheduling_parameters ss_params; + uint32_t chunks_on_queues; uint16_t stream_no; - uint16_t next_sequence_sent; /* next one I expect to send out */ + uint16_t next_sequence_send; /* next one I expect to send out */ uint8_t last_msg_incomplete; }; @@ -544,6 +650,8 @@ struct sctp_nonpad_sndrcvinfo { uint32_t sinfo_tsn; uint32_t sinfo_cumtsn; sctp_assoc_t sinfo_assoc_id; + uint16_t sinfo_keynumber; + uint16_t sinfo_keynumber_valid; }; /* @@ -556,19 +664,55 @@ struct sctp_cc_functions { void (*sctp_cwnd_update_after_sack) (struct sctp_tcb *stcb, struct sctp_association *asoc, int accum_moved, int reneged_all, int will_exit); + void (*sctp_cwnd_update_exit_pf) (struct sctp_tcb *stcb, struct sctp_nets *net); void (*sctp_cwnd_update_after_fr) (struct sctp_tcb *stcb, struct sctp_association *asoc); void (*sctp_cwnd_update_after_timeout) (struct sctp_tcb *stcb, struct sctp_nets *net); void (*sctp_cwnd_update_after_ecn_echo) (struct sctp_tcb *stcb, - struct sctp_nets *net); + struct sctp_nets *net, int in_window, int num_pkt_lost); void (*sctp_cwnd_update_after_packet_dropped) (struct sctp_tcb *stcb, struct sctp_nets *net, struct sctp_pktdrop_chunk *cp, uint32_t * bottle_bw, uint32_t * on_queue); void (*sctp_cwnd_update_after_output) (struct sctp_tcb *stcb, struct sctp_nets *net, int burst_limit); - void (*sctp_cwnd_update_after_fr_timer) (struct sctp_inpcb *inp, - struct sctp_tcb *stcb, struct sctp_nets *net); + void (*sctp_cwnd_update_packet_transmitted) (struct sctp_tcb *stcb, + struct sctp_nets *net); + void (*sctp_cwnd_update_tsn_acknowledged) (struct sctp_nets *net, + struct sctp_tmit_chunk *); + void (*sctp_cwnd_new_transmission_begins) (struct sctp_tcb *stcb, + struct sctp_nets *net); + void (*sctp_cwnd_prepare_net_for_sack) (struct sctp_tcb *stcb, + struct sctp_nets *net); + int (*sctp_cwnd_socket_option) (struct sctp_tcb *stcb, int set, struct sctp_cc_option *); + void (*sctp_rtt_calculated) (struct sctp_tcb *, struct sctp_nets *, struct timeval *); +}; + +/* + * RS - Structure to hold function pointers to the functions responsible + * for stream scheduling. + */ +struct sctp_ss_functions { + void (*sctp_ss_init) (struct sctp_tcb *stcb, struct sctp_association *asoc, + int holds_lock); + void (*sctp_ss_clear) (struct sctp_tcb *stcb, struct sctp_association *asoc, + int clear_values, int holds_lock); + void (*sctp_ss_init_stream) (struct sctp_stream_out *strq, struct sctp_stream_out *with_strq); + void (*sctp_ss_add_to_stream) (struct sctp_tcb *stcb, struct sctp_association *asoc, + struct sctp_stream_out *strq, struct sctp_stream_queue_pending *sp, int holds_lock); + int (*sctp_ss_is_empty) (struct sctp_tcb *stcb, struct sctp_association *asoc); + void (*sctp_ss_remove_from_stream) (struct sctp_tcb *stcb, struct sctp_association *asoc, + struct sctp_stream_out *strq, struct sctp_stream_queue_pending *sp, int holds_lock); + struct sctp_stream_out *(*sctp_ss_select_stream) (struct sctp_tcb *stcb, + struct sctp_nets *net, struct sctp_association *asoc); + void (*sctp_ss_scheduled) (struct sctp_tcb *stcb, struct sctp_nets *net, + struct sctp_association *asoc, struct sctp_stream_out *strq, int moved_how_much); + void (*sctp_ss_packet_done) (struct sctp_tcb *stcb, struct sctp_nets *net, + struct sctp_association *asoc); + int (*sctp_ss_get_value) (struct sctp_tcb *stcb, struct sctp_association *asoc, + struct sctp_stream_out *strq, uint16_t * value); + int (*sctp_ss_set_value) (struct sctp_tcb *stcb, struct sctp_association *asoc, + struct sctp_stream_out *strq, uint16_t value); }; /* used to save ASCONF chunks for retransmission */ @@ -611,7 +755,6 @@ struct sctp_association { struct sctp_nonpad_sndrcvinfo def_send; /* timers and such */ - struct sctp_timer hb_timer; /* hb timer */ struct sctp_timer dack_timer; /* Delayed ack timer */ struct sctp_timer asconf_timer; /* asconf */ struct sctp_timer strreset_timer; /* stream reset */ @@ -652,13 +795,8 @@ struct sctp_association { /* re-assembly queue for fragmented chunks on the inbound path */ struct sctpchunk_listhead reasmqueue; - /* - * this queue is used when we reach a condition that we can NOT put - * data into the socket buffer. We track the size of this queue and - * set our rwnd to the space in the socket minus also the - * size_on_delivery_queue. - */ - struct sctpwheel_listhead out_wheel; + /* Scheduling queues */ + union scheduling_data ss_data; /* * This pointer will be set to NULL most of the time. But when we @@ -691,6 +829,7 @@ struct sctp_association { uint8_t *mapping_array; /* primary destination to use */ struct sctp_nets *primary_destination; + struct sctp_nets *alternate; /* If primary is down or PF */ /* For CMT */ struct sctp_nets *last_net_cmt_send_started; /* last place I got a data chunk from */ @@ -717,6 +856,10 @@ struct sctp_association { * module */ uint32_t congestion_control_module; + /* RS - the stream scheduling functions are in this struct */ + struct sctp_ss_functions ss_functions; + /* RS - value to store the currently loaded stream scheduling module */ + uint32_t stream_scheduling_module; uint32_t vrf_id; @@ -789,8 +932,6 @@ struct sctp_association { uint8_t *nr_mapping_array; uint32_t highest_tsn_inside_nr_map; - uint32_t last_echo_tsn; - uint32_t last_cwr_tsn; uint32_t fast_recovery_tsn; uint32_t sat_t3_recovery_tsn; uint32_t tsn_last_delivered; @@ -845,12 +986,11 @@ struct sctp_association { uint32_t sb_send_resv; /* amount reserved on a send */ uint32_t my_rwnd_control_len; /* shadow of sb_mbcnt used for rwnd * control */ - /* 32 bit nonce stuff */ - uint32_t nonce_resync_tsn; - uint32_t nonce_wait_tsn; +#ifdef INET6 uint32_t default_flowlabel; +#endif uint32_t pr_sctp_cnt; - int ctrl_queue_cnt; /* could be removed REM */ + int ctrl_queue_cnt; /* could be removed REM - NO IT CAN'T!! RRS */ /* * All outbound datagrams queue into this list from the individual * stream queue. Here they get assigned a TSN and then await @@ -887,8 +1027,8 @@ struct sctp_association { unsigned int size_on_all_streams; unsigned int cnt_on_all_streams; - /* Heart Beat delay in ticks */ - unsigned int heart_beat_delay; + /* Heart Beat delay in ms */ + uint32_t heart_beat_delay; /* autoclose */ unsigned int sctp_autoclose_ticks; @@ -951,6 +1091,7 @@ struct sctp_association { uint16_t streamincnt; uint16_t streamoutcnt; uint16_t strm_realoutsize; + uint16_t strm_pending_add_size; /* my maximum number of retrans of INIT and SEND */ /* copied from SCTP but should be individually setable */ uint16_t max_init_times; @@ -958,6 +1099,8 @@ struct sctp_association { uint16_t def_net_failure; + uint16_t def_net_pf_threshold; + /* * lock flag: 0 is ok to send, 1+ (duals as a retran count) is * awaiting ACK @@ -974,7 +1117,6 @@ struct sctp_association { uint16_t ecn_echo_cnt_onq; uint16_t free_chunk_cnt; - uint8_t stream_locked; uint8_t authenticated; /* packet authenticated ok */ /* @@ -983,8 +1125,10 @@ struct sctp_association { */ uint8_t send_sack; - /* max burst after fast retransmit completes */ - uint8_t max_burst; + /* max burst of new packets into the network */ + uint32_t max_burst; + /* max burst of fast retransmit packets */ + uint32_t fr_max_burst; uint8_t sat_network; /* RTT is in range of sat net or greater */ uint8_t sat_network_lockout; /* lockout code */ @@ -996,27 +1140,22 @@ struct sctp_association { uint8_t last_flags_delivered; uint8_t hb_ect_randombit; uint8_t hb_random_idx; - uint8_t hb_is_disabled; /* is the hb disabled? */ - uint8_t default_tos; + uint8_t default_dscp; uint8_t asconf_del_pending; /* asconf delete last addr pending */ - /* ECN Nonce stuff */ - uint8_t receiver_nonce_sum; /* nonce I sum and put in my sack */ - uint8_t ecn_nonce_allowed; /* Tells us if ECN nonce is on */ - uint8_t nonce_sum_check;/* On off switch used during re-sync */ - uint8_t nonce_wait_for_ecne; /* flag when we expect a ECN */ - uint8_t peer_supports_ecn_nonce; - /* * This value, plus all other ack'd but above cum-ack is added * together to cross check against the bit that we have yet to * define (probably in the SACK). When the cum-ack is updated, this * sum is updated as well. */ - uint8_t nonce_sum_expect_base; + /* Flag to tell if ECN is allowed */ uint8_t ecn_allowed; + /* Did the peer make the stream config (add out) request */ + uint8_t peer_req_out; + /* flag to indicate if peer can do asconf */ uint8_t peer_supports_asconf; /* EY - flag to indicate if peer can do nr_sack */ @@ -1027,6 +1166,7 @@ struct sctp_association { uint8_t peer_supports_auth; /* stream resets are supported by the peer */ uint8_t peer_supports_strreset; + uint8_t local_strreset_support; uint8_t peer_supports_nat; /* @@ -1035,17 +1175,7 @@ struct sctp_association { */ uint8_t peer_supports_pktdrop; - /* Do we allow V6/V4? */ - uint8_t ipv4_addr_legal; - uint8_t ipv6_addr_legal; - /* Address scoping flags */ - /* scope value for IPv4 */ - uint8_t ipv4_local_scope; - /* scope values for IPv6 */ - uint8_t local_scope; - uint8_t site_scope; - /* loopback scope */ - uint8_t loopback_scope; + struct sctp_scoping scope; /* flags to handle send alternate net tracking */ uint8_t used_alt_onsack; uint8_t used_alt_asconfack; @@ -1072,6 +1202,9 @@ struct sctp_association { uint8_t sctp_nr_sack_on_off; /* JRS 5/21/07 - CMT PF variable */ uint8_t sctp_cmt_pf; + uint8_t use_precise_time; + uint32_t sctp_features; + uint16_t port; /* remote UDP encapsulation port */ /* * The mapping array is used to track out of order sequences above * last_acked_seq. 0 indicates packet missing 1 indicates packet |