lsquic_packet_common.c revision a74702c6
1a74702c6SGeorge Wang/* Copyright (c) 2017 - 2022 LiteSpeed Technologies Inc. See LICENSE. */ 250aadb33SDmitri Tikhonov/* 350aadb33SDmitri Tikhonov * lsquic_packet_common.c -- some common packet-related routines 450aadb33SDmitri Tikhonov */ 550aadb33SDmitri Tikhonov 65392f7a3SLiteSpeed Tech#include <stdint.h> 750aadb33SDmitri Tikhonov#include <stdio.h> 85392f7a3SLiteSpeed Tech#include <time.h> 950aadb33SDmitri Tikhonov 105392f7a3SLiteSpeed Tech#include "lsquic.h" 115392f7a3SLiteSpeed Tech#include "lsquic_types.h" 1250aadb33SDmitri Tikhonov#include "lsquic_logger.h" 135392f7a3SLiteSpeed Tech#include "lsquic_enc_sess.h" 1450aadb33SDmitri Tikhonov#include "lsquic_packet_common.h" 1550aadb33SDmitri Tikhonov 1650aadb33SDmitri Tikhonov 1750aadb33SDmitri Tikhonovconst char * 18bfc7bfd8SDmitri Tikhonovlsquic_frame_types_to_str (char *buf, size_t bufsz, 19bfc7bfd8SDmitri Tikhonov enum quic_ft_bit frame_types) 2050aadb33SDmitri Tikhonov{ 2150aadb33SDmitri Tikhonov char *p; 2250aadb33SDmitri Tikhonov int i, w; 2350aadb33SDmitri Tikhonov size_t sz; 2450aadb33SDmitri Tikhonov 2550aadb33SDmitri Tikhonov if (bufsz > 0) 2650aadb33SDmitri Tikhonov buf[0] = '\0'; 2750aadb33SDmitri Tikhonov 2850aadb33SDmitri Tikhonov p = buf; 2950aadb33SDmitri Tikhonov for (i = 0; i < N_QUIC_FRAMES; ++i) 3050aadb33SDmitri Tikhonov { 3150aadb33SDmitri Tikhonov if (frame_types & (1 << i)) 3250aadb33SDmitri Tikhonov { 3350aadb33SDmitri Tikhonov sz = bufsz - (p - buf); 3450aadb33SDmitri Tikhonov w = snprintf(p, sz, "%.*s%s", p > buf, " ", 3550aadb33SDmitri Tikhonov frame_type_2_str[i] + sizeof("QUIC_FRAME_") - 1); 3650aadb33SDmitri Tikhonov if (w > (int) sz) 3750aadb33SDmitri Tikhonov { 3850aadb33SDmitri Tikhonov LSQ_WARN("not enough room for all frame types"); 3950aadb33SDmitri Tikhonov break; 4050aadb33SDmitri Tikhonov } 4150aadb33SDmitri Tikhonov p += w; 4250aadb33SDmitri Tikhonov } 4350aadb33SDmitri Tikhonov frame_types &= ~(1 << i); 4450aadb33SDmitri Tikhonov } 4550aadb33SDmitri Tikhonov 4650aadb33SDmitri Tikhonov return buf; 4750aadb33SDmitri Tikhonov} 4850aadb33SDmitri Tikhonov 4950aadb33SDmitri Tikhonov 505392f7a3SLiteSpeed Techconst char *const lsquic_hety2str[] = 5150aadb33SDmitri Tikhonov{ 525392f7a3SLiteSpeed Tech [HETY_NOT_SET] = "Short", 535392f7a3SLiteSpeed Tech [HETY_VERNEG] = "Version Negotiation", 545392f7a3SLiteSpeed Tech [HETY_INITIAL] = "Initial", 555392f7a3SLiteSpeed Tech [HETY_RETRY] = "Retry", 565392f7a3SLiteSpeed Tech [HETY_HANDSHAKE] = "Handshake", 575392f7a3SLiteSpeed Tech [HETY_0RTT] = "0-RTT", 585392f7a3SLiteSpeed Tech}; 5950aadb33SDmitri Tikhonov 6050aadb33SDmitri Tikhonov 615392f7a3SLiteSpeed Tech/* [draft-ietf-quic-tls-14], Section 4 */ 625392f7a3SLiteSpeed Techconst enum packnum_space lsquic_hety2pns[] = 6350aadb33SDmitri Tikhonov{ 645392f7a3SLiteSpeed Tech [HETY_NOT_SET] = PNS_APP, 655392f7a3SLiteSpeed Tech [HETY_VERNEG] = 0, 665392f7a3SLiteSpeed Tech [HETY_INITIAL] = PNS_INIT, 675392f7a3SLiteSpeed Tech [HETY_RETRY] = 0, 685392f7a3SLiteSpeed Tech [HETY_HANDSHAKE] = PNS_HSK, 695392f7a3SLiteSpeed Tech [HETY_0RTT] = PNS_APP, 705392f7a3SLiteSpeed Tech}; 7150aadb33SDmitri Tikhonov 7250aadb33SDmitri Tikhonov 735392f7a3SLiteSpeed Tech/* [draft-ietf-quic-tls-14], Section 4 */ 745392f7a3SLiteSpeed Techconst enum packnum_space lsquic_enclev2pns[] = 755392f7a3SLiteSpeed Tech{ 765392f7a3SLiteSpeed Tech [ENC_LEV_CLEAR] = PNS_INIT, 775392f7a3SLiteSpeed Tech [ENC_LEV_INIT] = PNS_HSK, 785392f7a3SLiteSpeed Tech [ENC_LEV_EARLY] = PNS_APP, 795392f7a3SLiteSpeed Tech [ENC_LEV_FORW] = PNS_APP, 805392f7a3SLiteSpeed Tech}; 819626cfc2SDmitri Tikhonov 829626cfc2SDmitri Tikhonov 835392f7a3SLiteSpeed Techconst char *const lsquic_pns2str[] = 849626cfc2SDmitri Tikhonov{ 855392f7a3SLiteSpeed Tech [PNS_INIT] = "Init PNS", 865392f7a3SLiteSpeed Tech [PNS_HSK] = "Handshake PNS", 875392f7a3SLiteSpeed Tech [PNS_APP] = "App PNS", 889626cfc2SDmitri Tikhonov}; 89