lsquic_packet_out.h revision 02b6086d
1229fce07SDmitri Tikhonov/* Copyright (c) 2017 - 2019 LiteSpeed Technologies Inc. See LICENSE. */ 250aadb33SDmitri Tikhonov/* 350aadb33SDmitri Tikhonov * lsquic_packet_out.h -- Structure and routines dealing with packet_out 450aadb33SDmitri Tikhonov */ 550aadb33SDmitri Tikhonov 650aadb33SDmitri Tikhonov#ifndef LSQUIC_PACKET_OUT_H 750aadb33SDmitri Tikhonov#define LSQUIC_PACKET_OUT_H 1 850aadb33SDmitri Tikhonov 950aadb33SDmitri Tikhonov#include <sys/queue.h> 1050aadb33SDmitri Tikhonov 1150aadb33SDmitri Tikhonovstruct malo; 129626cfc2SDmitri Tikhonovstruct lsquic_conn; 1350aadb33SDmitri Tikhonovstruct lsquic_engine_public; 1450aadb33SDmitri Tikhonovstruct lsquic_mm; 1550aadb33SDmitri Tikhonovstruct lsquic_stream; 165392f7a3SLiteSpeed Techstruct network_path; 1750aadb33SDmitri Tikhonovstruct parse_funcs; 185392f7a3SLiteSpeed Techstruct bwp_state; 1950aadb33SDmitri Tikhonov 2050aadb33SDmitri Tikhonov/* Each stream_rec is associated with one packet_out. packet_out can have 2150aadb33SDmitri Tikhonov * zero or more stream_rec structures. stream_rec keeps a pointer to a stream 224d83f5bdSDmitri Tikhonov * that has STREAM or RST_STREAM frames inside packet_out. `sr_frame_type' 234d83f5bdSDmitri Tikhonov * specifies the type of the frame; if this value is zero, values of the 244d83f5bdSDmitri Tikhonov * other struct members are not valid. `sr_off' indicates where inside 254d83f5bdSDmitri Tikhonov * packet_out->po_data the frame begins and `sr_len' is its length. 2650aadb33SDmitri Tikhonov * 27c51ce338SDmitri Tikhonov * We need this information for three reasons: 2850aadb33SDmitri Tikhonov * 1. A stream is not destroyed until all of its STREAM and RST_STREAM 2950aadb33SDmitri Tikhonov * frames are acknowledged. This is to make sure that we do not exceed 3050aadb33SDmitri Tikhonov * maximum allowed number of streams. 3150aadb33SDmitri Tikhonov * 2. When a packet is resubmitted, STREAM frames for a stream that has 3250aadb33SDmitri Tikhonov * been reset are not to be resubmitted. 33c51ce338SDmitri Tikhonov * 3. A buffered packet may have to be split before it is scheduled (this 34c51ce338SDmitri Tikhonov * occurs if we guessed incorrectly the number of bytes required to 35c51ce338SDmitri Tikhonov * encode the packet number and the actual number would make packet 36c51ce338SDmitri Tikhonov * larger than the max). 37c51ce338SDmitri Tikhonov * 3850aadb33SDmitri Tikhonov */ 3950aadb33SDmitri Tikhonovstruct stream_rec { 4050aadb33SDmitri Tikhonov struct lsquic_stream *sr_stream; 41c51ce338SDmitri Tikhonov unsigned short sr_off, 42c51ce338SDmitri Tikhonov sr_len; 436aba801dSDmitri Tikhonov enum quic_frame_type sr_frame_type:16; 4450aadb33SDmitri Tikhonov}; 4550aadb33SDmitri Tikhonov 464d83f5bdSDmitri Tikhonov#define srec_taken(srec) ((srec)->sr_frame_type) 4750aadb33SDmitri Tikhonov 4850aadb33SDmitri Tikhonovstruct stream_rec_arr { 49c51ce338SDmitri Tikhonov TAILQ_ENTRY(stream_rec_arr) next_stream_rec_arr; 5050aadb33SDmitri Tikhonov struct stream_rec srecs[ 5150aadb33SDmitri Tikhonov ( 64 /* Efficient size for malo allocator */ 52c51ce338SDmitri Tikhonov - sizeof(TAILQ_ENTRY(stream_rec)) /* next_stream_rec_arr */ 5350aadb33SDmitri Tikhonov ) / sizeof(struct stream_rec) 5450aadb33SDmitri Tikhonov ]; 5550aadb33SDmitri Tikhonov}; 5650aadb33SDmitri Tikhonov 57c51ce338SDmitri TikhonovTAILQ_HEAD(stream_rec_arr_tailq, stream_rec_arr); 58c51ce338SDmitri Tikhonov 595392f7a3SLiteSpeed Tech 6050aadb33SDmitri Tikhonovtypedef struct lsquic_packet_out 6150aadb33SDmitri Tikhonov{ 6250aadb33SDmitri Tikhonov /* `po_next' is used for packets_out, unacked_packets and expired_packets 6350aadb33SDmitri Tikhonov * lists. 6450aadb33SDmitri Tikhonov */ 6550aadb33SDmitri Tikhonov TAILQ_ENTRY(lsquic_packet_out) 6650aadb33SDmitri Tikhonov po_next; 6750aadb33SDmitri Tikhonov lsquic_time_t po_sent; /* Time sent */ 6850aadb33SDmitri Tikhonov lsquic_packno_t po_packno; 695392f7a3SLiteSpeed Tech lsquic_packno_t po_ack2ed; /* If packet has ACK frame, value of 705392f7a3SLiteSpeed Tech * largest acked in it. 715392f7a3SLiteSpeed Tech */ 725392f7a3SLiteSpeed Tech struct lsquic_packet_out 735392f7a3SLiteSpeed Tech *po_loss_chain; /* Circular linked list */ 7450aadb33SDmitri Tikhonov 755392f7a3SLiteSpeed Tech enum quic_ft_bit po_frame_types; /* Bitmask of QUIC_FRAME_* */ 76bfc7bfd8SDmitri Tikhonov enum packet_out_flags { 775392f7a3SLiteSpeed Tech /* TODO XXX Phase out PO_MINI in favor of a more specialized flag: 785392f7a3SLiteSpeed Tech * we only need an indicator that a packet contains STREAM frames 795392f7a3SLiteSpeed Tech * but no associated srecs. This type of packets in only created 805392f7a3SLiteSpeed Tech * by GQUIC mini conn. 815392f7a3SLiteSpeed Tech */ 825392f7a3SLiteSpeed Tech PO_MINI = (1 << 0), /* Allocated by mini connection */ 83bfc7bfd8SDmitri Tikhonov PO_HELLO = (1 << 1), /* Packet contains SHLO or CHLO data */ 845392f7a3SLiteSpeed Tech PO_SENT = (1 << 2), /* Packet has been sent (mini only) */ 85bfc7bfd8SDmitri Tikhonov PO_ENCRYPTED= (1 << 3), /* po_enc_data has encrypted data */ 86bfc7bfd8SDmitri Tikhonov PO_SREC_ARR = (1 << 4), 87bfc7bfd8SDmitri Tikhonov#define POBIT_SHIFT 5 88bfc7bfd8SDmitri Tikhonov PO_BITS_0 = (1 << 5), /* PO_BITS_0 and PO_BITS_1 encode the */ 89bfc7bfd8SDmitri Tikhonov PO_BITS_1 = (1 << 6), /* packet number length. See macros below. */ 90bfc7bfd8SDmitri Tikhonov PO_NONCE = (1 << 7), /* Use value in `po_nonce' to generate header */ 91bfc7bfd8SDmitri Tikhonov PO_VERSION = (1 << 8), /* Use value in `po_ver_tag' to generate header */ 92bfc7bfd8SDmitri Tikhonov PO_CONN_ID = (1 << 9), /* Include connection ID in public header */ 93bfc7bfd8SDmitri Tikhonov PO_REPACKNO = (1 <<10), /* Regenerate packet number */ 94bfc7bfd8SDmitri Tikhonov PO_NOENCRYPT= (1 <<11), /* Do not encrypt data in po_data */ 95bfc7bfd8SDmitri Tikhonov PO_VERNEG = (1 <<12), /* Version negotiation packet. */ 96bfc7bfd8SDmitri Tikhonov PO_STREAM_END 97bfc7bfd8SDmitri Tikhonov = (1 <<13), /* STREAM frame reaches the end of the packet: no 98bfc7bfd8SDmitri Tikhonov * further writes are allowed. 99bfc7bfd8SDmitri Tikhonov */ 100bfc7bfd8SDmitri Tikhonov PO_SCHED = (1 <<14), /* On scheduled queue */ 10116a9b66aSDmitri Tikhonov PO_SENT_SZ = (1 <<15), 1025392f7a3SLiteSpeed Tech PO_LONGHEAD = (1 <<16), /* Only used for Q044 */ 1031e75f938SDmitri Tikhonov#define POIPv6_SHIFT 20 1041e75f938SDmitri Tikhonov PO_IPv6 = (1 <<20), /* Set if pmi_allocate was passed is_ipv6=1, 1051e75f938SDmitri Tikhonov * otherwise unset. 1061e75f938SDmitri Tikhonov */ 1078252b0b9SDmitri Tikhonov PO_LIMITED = (1 <<21), /* Used to credit sc_next_limit if needed. */ 1085392f7a3SLiteSpeed Tech#define POPNS_SHIFT 22 1095392f7a3SLiteSpeed Tech PO_PNS_HSK = (1 <<22), /* PNS bits contain the value of the */ 1105392f7a3SLiteSpeed Tech PO_PNS_APP = (1 <<23), /* packet number space. */ 1115392f7a3SLiteSpeed Tech PO_RETRY = (1 <<24), /* Retry packet */ 1125392f7a3SLiteSpeed Tech PO_RETX = (1 <<25), /* Retransmitted packet: don't append to it */ 1135392f7a3SLiteSpeed Tech PO_UNUSED26 = (1 <<26), /* Unused */ 1145392f7a3SLiteSpeed Tech PO_LOSS_REC = (1 <<27), /* This structure is a loss record */ 1155392f7a3SLiteSpeed Tech /* Only one of PO_SCHED, PO_UNACKED, or PO_LOST can be set. If pressed 1165392f7a3SLiteSpeed Tech * for room in the enum, we can switch to using two bits to represent 1175392f7a3SLiteSpeed Tech * this information. 1185392f7a3SLiteSpeed Tech */ 1195392f7a3SLiteSpeed Tech PO_UNACKED = (1 <<28), /* On unacked queue */ 1205392f7a3SLiteSpeed Tech PO_LOST = (1 <<29), /* On lost queue */ 1215392f7a3SLiteSpeed Tech#define POSPIN_SHIFT 30 1225392f7a3SLiteSpeed Tech PO_SPIN_BIT = (1 <<30), /* Value of the spin bit */ 1239626cfc2SDmitri Tikhonov } po_flags; 124bfc7bfd8SDmitri Tikhonov unsigned short po_data_sz; /* Number of usable bytes in data */ 125bfc7bfd8SDmitri Tikhonov unsigned short po_enc_data_sz; /* Number of usable bytes in data */ 12616a9b66aSDmitri Tikhonov unsigned short po_sent_sz; /* If PO_SENT_SZ is set, real size of sent buffer. */ 127bfc7bfd8SDmitri Tikhonov unsigned short po_regen_sz; /* Number of bytes at the beginning 128bfc7bfd8SDmitri Tikhonov * of data containing bytes that are 129bfc7bfd8SDmitri Tikhonov * not to be retransmitted, e.g. ACK 130bfc7bfd8SDmitri Tikhonov * frames. 131bfc7bfd8SDmitri Tikhonov */ 132bfc7bfd8SDmitri Tikhonov unsigned short po_n_alloc; /* Total number of bytes allocated in po_data */ 1335392f7a3SLiteSpeed Tech unsigned short po_token_len; 1349626cfc2SDmitri Tikhonov enum header_type po_header_type:8; 1355392f7a3SLiteSpeed Tech unsigned char po_path_id; 1365392f7a3SLiteSpeed Tech enum { 1375392f7a3SLiteSpeed Tech POL_GQUIC = 1 << 0, /* Used for logging */ 1385392f7a3SLiteSpeed Tech#define POLEV_SHIFT 1 1395392f7a3SLiteSpeed Tech POL_ELBIT_0 = 1 << 1, /* EL bits encode the crypto level. */ 1405392f7a3SLiteSpeed Tech POL_ELBIT_1 = 1 << 2, 1415392f7a3SLiteSpeed Tech#define POKP_SHIFT 3 1425392f7a3SLiteSpeed Tech POL_KEY_PHASE= 1 << 3, /* Used for logging */ 1435392f7a3SLiteSpeed Tech#define POECN_SHIFT 4 1445392f7a3SLiteSpeed Tech POL_ECNBIT_0 = 1 << 4, 1455392f7a3SLiteSpeed Tech POL_ECNBIT_1 = 1 << 5, 14602b6086dSDmitri Tikhonov POL_LOG_QL_BITS = 1 << 6, 14702b6086dSDmitri Tikhonov POL_SQUARE_BIT = 1 << 7, 14802b6086dSDmitri Tikhonov POL_LOSS_BIT = 1 << 8, 14902b6086dSDmitri Tikhonov } po_lflags:16; 150bfc7bfd8SDmitri Tikhonov unsigned char *po_data; 151bfc7bfd8SDmitri Tikhonov 15250aadb33SDmitri Tikhonov /* A lot of packets contain data belonging to only one stream. Thus, 153c51ce338SDmitri Tikhonov * `one' is used first. If this is not enough, any number of 15450aadb33SDmitri Tikhonov * stream_rec_arr structures can be allocated to handle more stream 15550aadb33SDmitri Tikhonov * records. 15650aadb33SDmitri Tikhonov */ 157c51ce338SDmitri Tikhonov union { 158c51ce338SDmitri Tikhonov struct stream_rec one; 159c51ce338SDmitri Tikhonov struct stream_rec_arr_tailq arr; 160c51ce338SDmitri Tikhonov } po_srecs; 16150aadb33SDmitri Tikhonov 16250aadb33SDmitri Tikhonov /* If PO_ENCRYPTED is set, this points to the buffer that holds encrypted 16350aadb33SDmitri Tikhonov * data. 16450aadb33SDmitri Tikhonov */ 16550aadb33SDmitri Tikhonov unsigned char *po_enc_data; 16650aadb33SDmitri Tikhonov 16750aadb33SDmitri Tikhonov lsquic_ver_tag_t po_ver_tag; /* Set if PO_VERSION is set */ 16850aadb33SDmitri Tikhonov unsigned char *po_nonce; /* Use to generate header if PO_NONCE is set */ 1695392f7a3SLiteSpeed Tech const struct network_path 1705392f7a3SLiteSpeed Tech *po_path; 1715392f7a3SLiteSpeed Tech#define po_token po_nonce 1725392f7a3SLiteSpeed Tech struct bwp_state *po_bwp_state; 17350aadb33SDmitri Tikhonov} lsquic_packet_out_t; 17450aadb33SDmitri Tikhonov 1755392f7a3SLiteSpeed Tech/* This is to make sure these bit names are not used, they are only for 1765392f7a3SLiteSpeed Tech * convenience in gdb output. 1775392f7a3SLiteSpeed Tech */ 1785392f7a3SLiteSpeed Tech#define PO_PNS_HSK 1795392f7a3SLiteSpeed Tech#define PO_PNS_APP 1805392f7a3SLiteSpeed Tech 18150aadb33SDmitri Tikhonov/* The size of lsquic_packet_out_t could be further reduced: 18250aadb33SDmitri Tikhonov * 18350aadb33SDmitri Tikhonov * po_ver_tag could be encoded as a few bits representing enum lsquic_version 18450aadb33SDmitri Tikhonov * in po_flags. The cost is a bit of complexity. This will save us four bytes. 18550aadb33SDmitri Tikhonov */ 18650aadb33SDmitri Tikhonov 18750aadb33SDmitri Tikhonov#define lsquic_packet_out_avail(p) ((unsigned short) \ 18850aadb33SDmitri Tikhonov ((p)->po_n_alloc - (p)->po_data_sz)) 18950aadb33SDmitri Tikhonov 19050aadb33SDmitri Tikhonov#define lsquic_packet_out_packno_bits(p) (((p)->po_flags >> POBIT_SHIFT) & 0x3) 19150aadb33SDmitri Tikhonov 192bfc7bfd8SDmitri Tikhonov#define lsquic_packet_out_set_packno_bits(p, b) do { \ 193bfc7bfd8SDmitri Tikhonov (p)->po_flags &= ~(0x3 << POBIT_SHIFT); \ 194bfc7bfd8SDmitri Tikhonov (p)->po_flags |= ((b) & 0x3) << POBIT_SHIFT; \ 195bfc7bfd8SDmitri Tikhonov} while (0) 196bfc7bfd8SDmitri Tikhonov 1971e75f938SDmitri Tikhonov#define lsquic_packet_out_ipv6(p) ((int)(((p)->po_flags >> POIPv6_SHIFT) & 1)) 1981e75f938SDmitri Tikhonov 1991e75f938SDmitri Tikhonov#define lsquic_packet_out_set_ipv6(p, b) do { \ 2001e75f938SDmitri Tikhonov (p)->po_flags &= ~(1 << POIPv6_SHIFT); \ 2011e75f938SDmitri Tikhonov (p)->po_flags |= ((b) & 1) << POIPv6_SHIFT; \ 2021e75f938SDmitri Tikhonov} while (0) 2031e75f938SDmitri Tikhonov 2045392f7a3SLiteSpeed Tech#define lsquic_packet_out_spin_bit(p) (((p)->po_flags & PO_SPIN_BIT) > 0) 20502b6086dSDmitri Tikhonov#define lsquic_packet_out_square_bit(p) (((p)->po_lflags & POL_SQUARE_BIT) > 0) 20602b6086dSDmitri Tikhonov#define lsquic_packet_out_loss_bit(p) (((p)->po_lflags & POL_LOSS_BIT) > 0) 2075392f7a3SLiteSpeed Tech 2085392f7a3SLiteSpeed Tech#define lsquic_packet_out_set_spin_bit(p, b) do { \ 2095392f7a3SLiteSpeed Tech (p)->po_flags &= ~PO_SPIN_BIT; \ 2105392f7a3SLiteSpeed Tech (p)->po_flags |= ((b) & 1) << POSPIN_SHIFT; \ 2115392f7a3SLiteSpeed Tech} while (0) 2125392f7a3SLiteSpeed Tech 2135392f7a3SLiteSpeed Tech#define lsquic_packet_out_key_phase(p) 0 /* TODO */ 2145392f7a3SLiteSpeed Tech 2155392f7a3SLiteSpeed Tech#define lsquic_po_header_length(lconn, po_flags, dcid_len) ( \ 2165392f7a3SLiteSpeed Tech lconn->cn_pf->pf_packout_max_header_size(lconn, po_flags, dcid_len)) 21750aadb33SDmitri Tikhonov 2189626cfc2SDmitri Tikhonov#define lsquic_packet_out_total_sz(lconn, p) (\ 2199626cfc2SDmitri Tikhonov lconn->cn_pf->pf_packout_size(lconn, p)) 220bfc7bfd8SDmitri Tikhonov 22116a9b66aSDmitri Tikhonov#if __GNUC__ 22216a9b66aSDmitri Tikhonov#if LSQUIC_EXTRA_CHECKS 2239626cfc2SDmitri Tikhonov#define lsquic_packet_out_sent_sz(lconn, p) ( \ 22416a9b66aSDmitri Tikhonov __builtin_expect(((p)->po_flags & PO_SENT_SZ), 1) ? \ 2259626cfc2SDmitri Tikhonov (assert((p)->po_sent_sz == lsquic_packet_out_total_sz(lconn, p)), \ 2269626cfc2SDmitri Tikhonov (p)->po_sent_sz) : lsquic_packet_out_total_sz(lconn, p)) 22716a9b66aSDmitri Tikhonov# else 2289626cfc2SDmitri Tikhonov#define lsquic_packet_out_sent_sz(lconn, p) ( \ 22916a9b66aSDmitri Tikhonov __builtin_expect(((p)->po_flags & PO_SENT_SZ), 1) ? \ 2309626cfc2SDmitri Tikhonov (p)->po_sent_sz : lsquic_packet_out_total_sz(lconn, p)) 23116a9b66aSDmitri Tikhonov#endif 23216a9b66aSDmitri Tikhonov#else 2339626cfc2SDmitri Tikhonov# define lsquic_packet_out_sent_sz(lconn, p) ( \ 23416a9b66aSDmitri Tikhonov (p)->po_flags & PO_SENT_SZ ? \ 2359626cfc2SDmitri Tikhonov (p)->po_sent_sz : lsquic_packet_out_total_sz(lconn, p)) 23616a9b66aSDmitri Tikhonov#endif 23716a9b66aSDmitri Tikhonov 23850aadb33SDmitri Tikhonov#define lsquic_packet_out_verneg(p) \ 2395392f7a3SLiteSpeed Tech (((p)->po_flags & (PO_NOENCRYPT|PO_VERNEG|PO_RETRY)) == (PO_NOENCRYPT|PO_VERNEG)) 24050aadb33SDmitri Tikhonov 24150aadb33SDmitri Tikhonov#define lsquic_packet_out_pubres(p) \ 2425392f7a3SLiteSpeed Tech (((p)->po_flags & (PO_NOENCRYPT|PO_VERNEG|PO_RETRY)) == PO_NOENCRYPT ) 2435392f7a3SLiteSpeed Tech 2445392f7a3SLiteSpeed Tech#define lsquic_packet_out_retry(p) \ 2455392f7a3SLiteSpeed Tech (((p)->po_flags & (PO_NOENCRYPT|PO_VERNEG|PO_RETRY)) == (PO_NOENCRYPT|PO_RETRY) ) 24650aadb33SDmitri Tikhonov 2479626cfc2SDmitri Tikhonov#define lsquic_packet_out_set_enc_level(p, level) do { \ 2485392f7a3SLiteSpeed Tech (p)->po_lflags &= ~(3 << POLEV_SHIFT); \ 2495392f7a3SLiteSpeed Tech (p)->po_lflags |= level << POLEV_SHIFT; \ 2505392f7a3SLiteSpeed Tech} while (0) 2515392f7a3SLiteSpeed Tech 2525392f7a3SLiteSpeed Tech#define lsquic_packet_out_enc_level(p) (((p)->po_lflags >> POLEV_SHIFT) & 3) 2535392f7a3SLiteSpeed Tech 2545392f7a3SLiteSpeed Tech#define lsquic_packet_out_set_kp(p, kp) do { \ 2555392f7a3SLiteSpeed Tech (p)->po_lflags &= ~(1 << POKP_SHIFT); \ 2565392f7a3SLiteSpeed Tech (p)->po_lflags |= kp << POKP_SHIFT; \ 2575392f7a3SLiteSpeed Tech} while (0) 2585392f7a3SLiteSpeed Tech 2595392f7a3SLiteSpeed Tech#define lsquic_packet_out_kp(p) (((p)->po_lflags >> POKP_SHIFT) & 1) 2605392f7a3SLiteSpeed Tech 2615392f7a3SLiteSpeed Tech#define lsquic_packet_out_set_pns(p, pns) do { \ 2625392f7a3SLiteSpeed Tech (p)->po_flags &= ~(3 << POPNS_SHIFT); \ 2635392f7a3SLiteSpeed Tech (p)->po_flags |= pns << POPNS_SHIFT; \ 2645392f7a3SLiteSpeed Tech} while (0) 2655392f7a3SLiteSpeed Tech 2665392f7a3SLiteSpeed Tech#define lsquic_packet_out_pns(p) (((p)->po_flags >> POPNS_SHIFT) & 3) 2675392f7a3SLiteSpeed Tech 2685392f7a3SLiteSpeed Tech#define lsquic_packet_out_set_ecn(p, ecn) do { \ 2695392f7a3SLiteSpeed Tech (p)->po_lflags &= ~(3 << POECN_SHIFT); \ 2705392f7a3SLiteSpeed Tech (p)->po_lflags |= ecn << POECN_SHIFT; \ 2719626cfc2SDmitri Tikhonov} while (0) 2729626cfc2SDmitri Tikhonov 2735392f7a3SLiteSpeed Tech#define lsquic_packet_out_ecn(p) (((p)->po_lflags >> POECN_SHIFT) & 3) 2749626cfc2SDmitri Tikhonov 27550aadb33SDmitri Tikhonovstruct packet_out_srec_iter { 27650aadb33SDmitri Tikhonov lsquic_packet_out_t *packet_out; 27750aadb33SDmitri Tikhonov struct stream_rec_arr *cur_srec_arr; 27850aadb33SDmitri Tikhonov unsigned srec_idx; 279c51ce338SDmitri Tikhonov int impl_idx; 28050aadb33SDmitri Tikhonov}; 28150aadb33SDmitri Tikhonov 2825392f7a3SLiteSpeed Tech 28350aadb33SDmitri Tikhonovstruct stream_rec * 28450aadb33SDmitri Tikhonovposi_first (struct packet_out_srec_iter *posi, lsquic_packet_out_t *); 28550aadb33SDmitri Tikhonov 28650aadb33SDmitri Tikhonovstruct stream_rec * 28750aadb33SDmitri Tikhonovposi_next (struct packet_out_srec_iter *posi); 28850aadb33SDmitri Tikhonov 28950aadb33SDmitri Tikhonovlsquic_packet_out_t * 29050aadb33SDmitri Tikhonovlsquic_packet_out_new (struct lsquic_mm *, struct malo *, int use_cid, 291c7d81ce1SDmitri Tikhonov const struct lsquic_conn *, enum packno_bits, 2925392f7a3SLiteSpeed Tech const lsquic_ver_tag_t *, const unsigned char *nonce, 2935392f7a3SLiteSpeed Tech const struct network_path *); 29450aadb33SDmitri Tikhonov 29550aadb33SDmitri Tikhonovvoid 29650aadb33SDmitri Tikhonovlsquic_packet_out_destroy (lsquic_packet_out_t *, 2971e75f938SDmitri Tikhonov struct lsquic_engine_public *, void *peer_ctx); 29850aadb33SDmitri Tikhonov 29950aadb33SDmitri Tikhonovint 30050aadb33SDmitri Tikhonovlsquic_packet_out_add_stream (lsquic_packet_out_t *packet_out, 30150aadb33SDmitri Tikhonov struct lsquic_mm *mm, 30250aadb33SDmitri Tikhonov struct lsquic_stream *new_stream, 3036aba801dSDmitri Tikhonov enum quic_frame_type, 304c51ce338SDmitri Tikhonov unsigned short off, unsigned short len); 30550aadb33SDmitri Tikhonov 306bfc7bfd8SDmitri Tikhonovunsigned 3075392f7a3SLiteSpeed Techlsquic_packet_out_elide_reset_stream_frames (lsquic_packet_out_t *, 3085392f7a3SLiteSpeed Tech lsquic_stream_id_t); 309c51ce338SDmitri Tikhonov 310c51ce338SDmitri Tikhonovint 311c51ce338SDmitri Tikhonovlsquic_packet_out_split_in_two (struct lsquic_mm *, lsquic_packet_out_t *, 312c51ce338SDmitri Tikhonov lsquic_packet_out_t *, const struct parse_funcs *, unsigned excess_bytes); 31350aadb33SDmitri Tikhonov 31450aadb33SDmitri Tikhonovvoid 31550aadb33SDmitri Tikhonovlsquic_packet_out_chop_regen (lsquic_packet_out_t *); 31650aadb33SDmitri Tikhonov 317c51ce338SDmitri Tikhonovvoid 318c51ce338SDmitri Tikhonovlsquic_packet_out_ack_streams (struct lsquic_packet_out *); 319c51ce338SDmitri Tikhonov 320c51ce338SDmitri Tikhonovvoid 321c51ce338SDmitri Tikhonovlsquic_packet_out_zero_pad (struct lsquic_packet_out *); 322c51ce338SDmitri Tikhonov 323c51ce338SDmitri Tikhonovsize_t 324c51ce338SDmitri Tikhonovlsquic_packet_out_mem_used (const struct lsquic_packet_out *); 325c51ce338SDmitri Tikhonov 326c51ce338SDmitri Tikhonovint 327c51ce338SDmitri Tikhonovlsquic_packet_out_turn_on_fin (struct lsquic_packet_out *, 328c51ce338SDmitri Tikhonov const struct parse_funcs *, const struct lsquic_stream *); 329c51ce338SDmitri Tikhonov 33050aadb33SDmitri Tikhonov#endif 331