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view src/event/quic/ngx_event_quic_bpf_code.c @ 8906:41caf5410110 quic

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QUIC: reject streams which we could not create. The reasons why a stream may not be created by server currently include hitting worker_connections limit and memory allocation error. Previously in these cases the entire QUIC connection was closed and all its streams were shut down. Now the new stream is rejected and existing streams continue working. To reject an HTTP/3 request stream, RESET_STREAM and STOP_SENDING with H3_REQUEST_REJECTED error code are sent to client. HTTP/3 uni streams and Stream streams are not rejected.
author Roman Arutyunyan <arut@nginx.com>
date Thu, 11 Nov 2021 19:07:00 +0300
parents 6d1488b62dc5
children
line wrap: on
line source

/* AUTO-GENERATED, DO NOT EDIT. */

#include <stddef.h>
#include <stdint.h>

#include "ngx_bpf.h"


static ngx_bpf_reloc_t bpf_reloc_prog_ngx_quic_reuseport_helper[] = {
    { "ngx_quic_sockmap", 55 },
};

static struct bpf_insn bpf_insn_prog_ngx_quic_reuseport_helper[] = {
    /* opcode dst          src         offset imm */
    { 0x79,   BPF_REG_4,   BPF_REG_1, (int16_t)      0,        0x0 },
    { 0x79,   BPF_REG_3,   BPF_REG_1, (int16_t)      8,        0x0 },
    { 0xbf,   BPF_REG_2,   BPF_REG_4, (int16_t)      0,        0x0 },
    {  0x7,   BPF_REG_2,   BPF_REG_0, (int16_t)      0,        0x8 },
    { 0x2d,   BPF_REG_2,   BPF_REG_3, (int16_t)     54,        0x0 },
    { 0xbf,   BPF_REG_5,   BPF_REG_4, (int16_t)      0,        0x0 },
    {  0x7,   BPF_REG_5,   BPF_REG_0, (int16_t)      0,        0x9 },
    { 0x2d,   BPF_REG_5,   BPF_REG_3, (int16_t)     51,        0x0 },
    { 0xb7,   BPF_REG_5,   BPF_REG_0, (int16_t)      0,       0x14 },
    { 0xb7,   BPF_REG_0,   BPF_REG_0, (int16_t)      0,        0x9 },
    { 0x71,   BPF_REG_6,   BPF_REG_2, (int16_t)      0,        0x0 },
    { 0x67,   BPF_REG_6,   BPF_REG_0, (int16_t)      0,       0x38 },
    { 0xc7,   BPF_REG_6,   BPF_REG_0, (int16_t)      0,       0x38 },
    { 0x65,   BPF_REG_6,   BPF_REG_0, (int16_t)     10, 0xffffffff },
    { 0xbf,   BPF_REG_2,   BPF_REG_4, (int16_t)      0,        0x0 },
    {  0x7,   BPF_REG_2,   BPF_REG_0, (int16_t)      0,        0xd },
    { 0x2d,   BPF_REG_2,   BPF_REG_3, (int16_t)     42,        0x0 },
    { 0xbf,   BPF_REG_5,   BPF_REG_4, (int16_t)      0,        0x0 },
    {  0x7,   BPF_REG_5,   BPF_REG_0, (int16_t)      0,        0xe },
    { 0x2d,   BPF_REG_5,   BPF_REG_3, (int16_t)     39,        0x0 },
    { 0xb7,   BPF_REG_0,   BPF_REG_0, (int16_t)      0,        0xe },
    { 0x71,   BPF_REG_5,   BPF_REG_2, (int16_t)      0,        0x0 },
    { 0xb7,   BPF_REG_6,   BPF_REG_0, (int16_t)      0,        0x8 },
    { 0x2d,   BPF_REG_6,   BPF_REG_5, (int16_t)     35,        0x0 },
    {  0xf,   BPF_REG_5,   BPF_REG_0, (int16_t)      0,        0x0 },
    {  0xf,   BPF_REG_4,   BPF_REG_5, (int16_t)      0,        0x0 },
    { 0x2d,   BPF_REG_4,   BPF_REG_3, (int16_t)     32,        0x0 },
    { 0xbf,   BPF_REG_4,   BPF_REG_2, (int16_t)      0,        0x0 },
    {  0x7,   BPF_REG_4,   BPF_REG_0, (int16_t)      0,        0x9 },
    { 0x2d,   BPF_REG_4,   BPF_REG_3, (int16_t)     29,        0x0 },
    { 0x71,   BPF_REG_4,   BPF_REG_2, (int16_t)      1,        0x0 },
    { 0x67,   BPF_REG_4,   BPF_REG_0, (int16_t)      0,       0x38 },
    { 0x71,   BPF_REG_3,   BPF_REG_2, (int16_t)      2,        0x0 },
    { 0x67,   BPF_REG_3,   BPF_REG_0, (int16_t)      0,       0x30 },
    { 0x4f,   BPF_REG_3,   BPF_REG_4, (int16_t)      0,        0x0 },
    { 0x71,   BPF_REG_4,   BPF_REG_2, (int16_t)      3,        0x0 },
    { 0x67,   BPF_REG_4,   BPF_REG_0, (int16_t)      0,       0x28 },
    { 0x4f,   BPF_REG_3,   BPF_REG_4, (int16_t)      0,        0x0 },
    { 0x71,   BPF_REG_4,   BPF_REG_2, (int16_t)      4,        0x0 },
    { 0x67,   BPF_REG_4,   BPF_REG_0, (int16_t)      0,       0x20 },
    { 0x4f,   BPF_REG_3,   BPF_REG_4, (int16_t)      0,        0x0 },
    { 0x71,   BPF_REG_4,   BPF_REG_2, (int16_t)      5,        0x0 },
    { 0x67,   BPF_REG_4,   BPF_REG_0, (int16_t)      0,       0x18 },
    { 0x4f,   BPF_REG_3,   BPF_REG_4, (int16_t)      0,        0x0 },
    { 0x71,   BPF_REG_4,   BPF_REG_2, (int16_t)      6,        0x0 },
    { 0x67,   BPF_REG_4,   BPF_REG_0, (int16_t)      0,       0x10 },
    { 0x4f,   BPF_REG_3,   BPF_REG_4, (int16_t)      0,        0x0 },
    { 0x71,   BPF_REG_4,   BPF_REG_2, (int16_t)      7,        0x0 },
    { 0x67,   BPF_REG_4,   BPF_REG_0, (int16_t)      0,        0x8 },
    { 0x4f,   BPF_REG_3,   BPF_REG_4, (int16_t)      0,        0x0 },
    { 0x71,   BPF_REG_2,   BPF_REG_2, (int16_t)      8,        0x0 },
    { 0x4f,   BPF_REG_3,   BPF_REG_2, (int16_t)      0,        0x0 },
    { 0x7b,  BPF_REG_10,   BPF_REG_3, (int16_t)  65528,        0x0 },
    { 0xbf,   BPF_REG_3,  BPF_REG_10, (int16_t)      0,        0x0 },
    {  0x7,   BPF_REG_3,   BPF_REG_0, (int16_t)      0, 0xfffffff8 },
    { 0x18,   BPF_REG_2,   BPF_REG_0, (int16_t)      0,        0x0 },
    {  0x0,   BPF_REG_0,   BPF_REG_0, (int16_t)      0,        0x0 },
    { 0xb7,   BPF_REG_4,   BPF_REG_0, (int16_t)      0,        0x0 },
    { 0x85,   BPF_REG_0,   BPF_REG_0, (int16_t)      0,       0x52 },
    { 0xb7,   BPF_REG_0,   BPF_REG_0, (int16_t)      0,        0x1 },
    { 0x95,   BPF_REG_0,   BPF_REG_0, (int16_t)      0,        0x0 },
};


ngx_bpf_program_t ngx_quic_reuseport_helper = {
    .relocs = bpf_reloc_prog_ngx_quic_reuseport_helper,
    .nrelocs = sizeof(bpf_reloc_prog_ngx_quic_reuseport_helper)
               / sizeof(bpf_reloc_prog_ngx_quic_reuseport_helper[0]),
    .ins = bpf_insn_prog_ngx_quic_reuseport_helper,
    .nins = sizeof(bpf_insn_prog_ngx_quic_reuseport_helper)
            / sizeof(bpf_insn_prog_ngx_quic_reuseport_helper[0]),
    .license = "BSD",
    .type = BPF_PROG_TYPE_SK_REUSEPORT,
};