[BUG]

[sonogioo]

Describe the bug Nothing too complicated, i just cant join my server cause of this error: When trying to join most of the time i get this error: internal exception:io.netty.handler.codec.Corrupted Frame Exception: length wider than 21-bit

(when uninstalling limbofilter it works fine and i can join)

To Reproduce Steps to reproduce the behavior:

1. Standard Configs, no changes at all.
2. Just try to join the server
3. I Have this plugins:

Expected behavior When trying to join most of the time i get this error: internal exception:io.netty.handler.codec.Corrupted Frame Exception: length wider than 21-bit

Screenshots

Server Info (please complete the following information):

• All Limbo plugins versions:
  • limboapi-1.1.22.jar
  • limbofilter-1.1.16.jar
  • Latest Version of Velocity

velocity-dump-2024-04-09-10-38-36.json

[DHCPCD9]

Download dev build of limbo plugins, if issue remains, send config here

[sonogioo]

Download dev build of limbo plugins, if issue remains, send config here

Tried, still persists, config of limbo filter here: (default)

version: "1.1.16"

Available serializers:

LEGACY_AMPERSAND - "&c&lExample &c&9Text".

LEGACY_SECTION - "§c§lExample §c§9Text".

MINIMESSAGE - "Example Text". (https://webui.adventure.kyori.net/)

GSON - "[{"text":"Example","bold":true,"color":"red"},{"text":" ","bold":true},{"text":"Text","bold":true,"color":"blue"}]". (https://minecraft.tools/en/json_text.php/)

GSON_COLOR_DOWNSAMPLING - Same as GSON, but uses downsampling.

serializer: LEGACY_AMPERSAND prefix: "LimboFilter &6>>&f"

Don't use \n, use {NL} for new line, and {PRFX} for prefix.

main:

Check if player's Minecraft client sends the network packet with the settings.

check-client-settings: true

Check if player's Minecraft client has a brand.

check-client-brand: true

If player's Minecraft client brand (e.g. fabric or forge) is set here, then this player will be kicked.

blocked-client-brands:

• "brand1"
• "brand2"

  Time in milliseconds, how frequently will the cache list with verified players be reset. Before that time, verified players can join the server without passing antibot checks.

  purge-cache-millis: 3600000

  Max attempts, which a player has to solve the captcha.

  captcha-attempts: 2

  Duration of Falling Check in Minecraft ticks (1 tick = 0.05 second, 20 ticks = 1 second).

  falling-check-ticks: 128

  Maximum time to check the player in milliseconds. If the player stays on the filter limbo for longer than this time, then the check will fail.

  time-out: 15000

  Same, but for Geyser users.

  geyser-time-out: 45000

  The timeout for Netty. Max ping while being on the filter limbo. Used to remove useless buffers from RAM.

  max-ping: 3500

  Change the parameters below only if you know what they mean.

  non-valid-position-xz-attempts: 10 non-valid-position-y-attempts: 10 max-valid-position-difference: 0.01

  Parameter for developers and contributors.

  falling-check-debug: false

  Should captcha be displayed in the left hand. May cause problems with entering captcha for users with 4:3 monitors. Version: 1.9+

  captcha-left-hand: false

  Available states: ONLY_POSITION, ONLY_CAPTCHA, CAPTCHA_POSITION, CAPTCHA_ON_POSITION_FAILED

  Meaning:

  ONLY_POSITION -> Only falling check (Player will be spawned in the void, server will check player's coordinates, speed, acceleration).

  ONLY_CAPTCHA -> Only captcha (Map items with a captcha image will be given to the players, players need to solve captcha, and send the answer in the chat).

  CAPTCHA_POSITION -> Falling and Captcha checking concurrently (Player will be kicked, if he fails either falling check or captcha checking).

  CAPTCHA_ON_POSITION_FAILED -> Initially, the falling check will be started, but if the player fails that check, the captcha checking will be started.

  check-state: CAPTCHA_POSITION

  See "filter-auto-toggle.check-state-toggle".

  check-state-non-toggled: CAPTCHA_ON_POSITION_FAILED

  See "filter-auto-toggle.check-state-toggle".

  geyser-check-state: CAPTCHA_POSITION

  See "filter-auto-toggle.check-state-toggle".

  geyser-check-state-non-toggled: CAPTCHA_ON_POSITION_FAILED load-world: false

  World file type:

  SCHEMATIC (MCEdit .schematic, 1.12.2 and lower, not recommended)

  STRUCTURE (structure block .nbt, any Minecraft version is supported, but the latest one is recommended).

  WORLDEDIT_SCHEM (WorldEdit .schem, any Minecraft version is supported, but the latest one is recommended).

  world-file-type: STRUCTURE world-file-path: "world.nbt"

  World time in ticks (24000 ticks == 1 in-game day)

  world-ticks: 1000

  World light level (from 0 to 15)

  world-light-level: 15

  Should we override block light level (to light up the nether and the end)

  world-override-block-light-level: true

  Available: ADVENTURE, CREATIVE, SURVIVAL, SPECTATOR

  game-mode: ADVENTURE

  Unit of time in seconds for the Auto Toggles the Statistics.

  unit-of-time-cps: 300

  Unit of time in seconds for the Auto Toggles and the Statistics.

  unit-of-time-pps: 5

  Time in milliseconds how much we should wait before re-enabling logs after attacks

  log-enabler-check-refresh-rate: 1000

  Duration (in seconds) between regeneration of captchas

  captcha-regenerate-rate: 3600

  Coordinates for the falling check

  falling-coords: x: 0 y: 512 z: 0 teleport-id: 44

  A "USERNAME - IP" list containing information about players who should join the server without verification.

  whitelisted-players:

• username: "TestUser123" ip: "127.0.0.1"

  Minimum/maximum total connections amount per the unit of time to toggle anti-bot checks.

  -1 to disable the check.

  0 to enable on any connections per the unit of time.

  filter-auto-toggle:

  All players will bypass all anti-bot checks

  all-bypass: 0

  Online mode players will bypass all anti-bot checks.

  Doesn't work with online-mode-verify: -1

  online-mode-bypass: 49

  Verify Online Mode connection before AntiBot.

  If connections per unit of time amount is bigger than the limit: online mode players will need to reconnect.

  Else: Some attacks can consume more cpu and network, and can lead to long-lasting Mojang rate-limiting.

  Only works if you have an auth plugin installed. In other cases you should configure need-to-reconnect parameter

  online-mode-verify: 79

  Toggles check-state/check-state-non-toggled.

  It is not recommended to enable it, if you want to protect your server from spam-bots.

  If connections per unit of time amount is bigger than the limit: check-state will be used.

  Else: check-state-non-toggled will be used.

  check-state-toggle: 0

  The player will need to reconnect after passing AntiBot check.

  need-to-reconnect: 129

  Picture in the MOTD Server Ping packet will be disabled.

  disable-motd-picture: 25

  All the log messages from all plugins will be disabled.

  disable-log: 129 world-coords: x: 0 y: 0 z: 0 captcha-generator:

  Prepares Captcha packets, consumes x8 more RAM, but improves CPU performance during bot attacks. It's recommended to disable it, if you have less than 2GB of RAM.

  prepare-captcha-packets: false

  List of paths to the background image to draw on captcha. Any format, 128x128 128x128 px (will be automatically resized and stretched to the correct size). [] if empty.

  backplate-paths:

  • ""

    Path to the font files to draw on captcha (ttf), can be empty.

    fonts-path:

  • ""

    Use standard fonts(SANS_SERIF/SERIF/MONOSPACED), use false only if you provide fonts path

    use-standard-fonts: true letter-offset-x: 12 letter-offset-y: 0 font-letter-spacing-x: -14 font-letter-spacing-y: 0 render-font-size: 78.0 font-letter-width: 44 font-letter-height: 128 font-outline: true font-rotate: true font-ripple: true font-ripple-amplitude-width: 100.0 font-ripple-amplitude-height: 10.0 font-outline-rate: 1.25 font-outline-offset-x: -4 font-outline-offset-y: 4 font-outline-override-radius: 1

    Set 0 to disable

    curve-size: 2

    Set 0 to disable

    curves-amount: 3

    RGB colors without

    curves-colors:

  • "000000" strikethrough: false underline: true pattern: "abcdefghijklmnopqrstuvwxyz1234567890"

    If enabled, both lowercase and uppercase captcha answers entered by players will be correct

    ignore-case: true length: 3 images-count: 1000 number-spelling: false

    Set to true if you want to verify the number spelling configuration.

    The results will be saved to the number_spelling.txt file.

    save-number-spelling-output: false each-word-on-separate-line: true

    If the number ends with any key specified here, the corresponding value will be used.

    For example: if exception 11 is specified with value 'eleven', the number 411 will be spelt as 'four hundred eleven'.

    number-spelling-exceptions: "19": "nineteen" "18": "eighteen" "17": "seventeen" "16": "sixteen" "15": "fifteen" "14": "fourteen" "13": "thirteen" "12": "twelve" "11": "eleven"

    null or "" means that the digit should be skipped.

    Note: all the characters used here (including the space) must be listed in pattern.

    number-spelling-words:

  • • ""
    • "one"
    • "two"
    • "three"
    • "four"
    • "five"
    • "six"
    • "seven"
    • "eight"
    • "nine"
  • • ""
    • "ten"
    • "twenty"
    • "thirty"
    • "forty"
    • "fifty"
    • "sixty"
    • "seventy"
    • "eighty"
    • "ninety"
  • • ""
    • "one hundred"
    • "two hundred"
    • "three hundred"
    • "four hundred"
    • "five hundred"
    • "six hundred"
    • "seven hundred"
    • "eight hundred"
    • "nine hundred" rgb-color-list:
  • "000000"
  • "AA0000"
  • "00AA00"
  • "0000AA"
  • "AAAA00"
  • "AA00AA"
  • "00AAAA" gradient: gradient-enabled: false gradients-count: 32 start-x: 0.0 start-y: 40.0 end-x: 128.0 end-y: 80.0 start-x-randomness: 0.0 start-y-randomness: 2.0 end-x-randomness: 0.0 end-y-randomness: 2.0

    Numbers ranging from 0.0 to 1.0 specifying the distribution of colors along the gradient. Can be empty.

    fractions:

    • 0.0
    • 0.1
    • 0.2
    • 0.3
    • 0.4
    • 0.5
    • 0.6
    • 0.7
    • 0.8
    • 0.9 framed-captcha: framed-captcha-enabled: false width: 3 height: 3 frame-rotation-chance: 0.33 autoscale-font: true coords: x: -3 y: 128 z: 2 offset-1-7: x: 0 y: -2 z: 1

      Available dimensions: OVERWORLD, NETHER, THE_END

      botfilter-dimension: THE_END coords: captcha-x: -1.5

      If your server supports Minecraft 1.7, don't set captcha-y to 0. https://media.discordapp.net/attachments/878241549857738793/915165038464098314/unknown.png

      captcha-y: 128.0 captcha-z: 0.5 captcha-yaw: 90.0 captcha-pitch: 38.0 falling-check-yaw: 90.0 falling-check-pitch: 10.0 tcp-listener:

      Experimental proxy check feature

      Checks the proxy via comparing L4 (TCP PSH+ACK -> TCP ACK) and L7 (Minecraft KeepAlive) ping

      Works better with falling check enabled (150+ falling-check-ticks)

      Needs libpcap (libpcap-dev) on Linux; WinPcap/npcap on Windows

      Needs CAP_NET_RAW (or super-user) on Linux

      Doesn't work if Velocity is behind reverse-proxy (haproxy, protection services, etc)

      proxy-detector-enabled: false

      Difference between TCP (L4) and Minecraft (L7) ping in milliseconds to detect proxies.

      proxy-detector-difference: 5 interface-name: "any"

      How many bytes we should take from the each frame to analyse. 120 is enough for any TCP+IP header analysing

      snaplen: 120

      How many milliseconds should the delay be between frame analysis.

      listen-delay: 50

      Time in millis for capturing frames

      timeout: 10

      Log L4 and L7 ping

      debug-on-fail: false debug-on-success: false

      Available values: FALSE, TRUE, PERMISSION

      FALSE - the command will be disallowed

      TRUE - the command will be allowed if player has false permission state

      PERMISSION - the command will be allowed if player has true permission state

      command-permission-state:

      Permission: limbofilter.admin.sendfilter

      send-filter: PERMISSION

      Permission: limbofilter.admin.reload

      reload: PERMISSION

      Permission: limbofilter.admin.stats

      stats: PERMISSION

      Permission: limbofilter.admin.help

      help: TRUE

      Leave title fields empty to disable.

      strings: reload: "{PRFX} &aReloaded successfully!" client-settings-kick: "{PRFX}{NL}&cYour client doesn't send settings packets." client-brand-kick: "{PRFX}{NL}&cYour client doesn't send brand packet or it's blocked." proxy-check-kick: "{PRFX}{NL}&cYour connection is suspicious." checking-chat: "{PRFX} Bot-Filter check was started, please wait and don't move.." checking-title: "{PRFX}" checking-subtitle: "&aPlease wait.." checking-captcha-chat: "{PRFX} &aPlease, solve the captcha, you have &6{0} &aattempts." checking-wrong-captcha-chat: "{PRFX} &cYou entered the captcha incorrectly, you have &6{0} &cattempts left." checking-captcha-title: "&aPlease solve the captcha." checking-captcha-subtitle: "&aYou have &6{0} &aattempts." successful-cracked: "{PRFX} &aSuccessfully passed Bot-Filter check." successful-premium-kick: "{PRFX}{NL}&aSuccessfully passed Bot-Filter check.{NL}&6Please, rejoin the server!" captcha-failed-kick: "{PRFX}{NL}&cYou've mistaken in captcha check.{NL}&6Please, rejoin the server." falling-check-failed-kick: "{PRFX}{NL}&cFalling Check was failed.{NL}&6Please, rejoin the server." times-up: "{PRFX}{NL}&cYou have exceeded the maximum Bot-Filter check time.{NL}&6Please, rejoin the server." stats-format: "&c&lTotal Blocked: &6&l{0} &c&l| Connections: &6&l{1}s &c&l| Pings: &6&l{2}s &c&l| Total Connections: &6&l{3} &c&l| L7 Ping: &6&l{4} &c&l| L4 Ping: &6&l{5}" stats-enabled: "{PRFX} &aNow you see statistics in your action bar." stats-disabled: "{PRFX} &cYou're no longer see statistics in your action bar." send-player-successful: "{PRFX} Successfully sent {0} to the filter limbo." send-server-successful: "{PRFX} Successfully sent {0} players from {1} to the filter limbo." send-failed: "{PRFX} There is no registered servers or connected players named {0}." captcha-not-ready-yet: "{PRFX} Captcha is not ready yet. Try again in a few seconds"

Limbo API configs: (default)

version: "1.1.22"

Available serializers:

LEGACY_AMPERSAND - "&c&lExample &c&9Text".

LEGACY_SECTION - "§c§lExample §c§9Text".

MINIMESSAGE - "Example Text". (https://webui.adventure.kyori.net/)

GSON - "[{"text":"Example","bold":true,"color":"red"},{"text":" ","bold":true},{"text":"Text","bold":true,"color":"blue"}]". (https://minecraft.tools/en/json_text.php/)

GSON_COLOR_DOWNSAMPLING - Same as GSON, but uses downsampling.

serializer: LEGACY_AMPERSAND prefix: "LimboAPI &6>>&f"

Don't use \n, use {NL} for new line, and {PRFX} for prefix.

main: check-for-updates: true max-chat-message-length: 256 max-brand-name-length: 64 max-unknown-packet-length: 2048 max-single-generic-packet-length: 4096 max-multi-generic-packet-length: 131072

Default max packet length (in bytes) that will be proceeded, other packets will be dropped.

Can be increased with Limbo#setMaxSuppressPacketLength

max-packet-length-to-suppress-it: 512

Discards all packets longer than compression-threshold. Helps to mitigate some attacks.

Needs compression-threshold to be 300 or higher to support 1.19 chat-signing, so it is disabled by default

discard-compression-on-login: false discard-compression-after-login: false

LimboAPI will consume more RAM if this option is enabled, but compatibility with other plugins will be better

Enable it if you have a plugin installed that bypasses compression (e.g. Geyser)

save-uncompressed-packets: true

Logging for connect and disconnect messages.

logging-enabled: true

Change the parameters below, if you want to reduce the RAM consumption.

Use VelocityTools to completely block Minecraft versions (https://github.com/Elytrium/VelocityTools/releases/latest).

Available versions:

1_7_2, 1_7_6, 1_8, 1_9, 1_9_1, 1_9_2, 1_9_4, 1_10, 1_11, 1_11_1, 1_12, 1_12_1, 1_12_2,

1_13, 1_13_1, 1_13_2, 1_14, 1_14_1, 1_14_2, 1_14_3, 1_14_4, 1_15, 1_15_1, 1_15_2,

1_16, 1_16_1, 1_16_2, 1_16_3, 1_16_4, 1_17, 1_17_1, 1_18, 1_18_2, 1_19, 1_19_1, 1_19_3,

1_20, 1_20_2, 1_20_3, LATEST

prepare-min-version: "1_7_2" prepare-max-version: "LATEST"

Helpful if you want some plugins proceed before LimboAPI. For example, it is needed to Floodgate to replace UUID.

pre-limbo-profile-request-plugins:

• "floodgate"
• "geyser"

  Regenerates listeners that need to proceed before LimboAPI on each EventManager#register call.

  auto-regenerate-listeners: false

  Should reduced debug info be enabled (reduced information in F3) if there is no preference for Limbo

  reduced-debug-info: false view-distance: 10 simulation-distance: 9

  How many chunks we should send when a player spawns.

  0 = send no chunks on spawn.

  1 = send only the spawn chunk.

  2 = send the spawn chunk and chunks next to the spawn chunk.

  3 = send the spawn chunk, chunks next to the spawn chunk and next to these chunks.

  and so on..

  chunk-radius-send-on-spawn: 2

  How many chunks we should send per tick

  chunks-per-tick: 16

  Maximum delay for receiving ChatSession packet (for online-mode client-side race condition mitigation)

  chat-session-packet-timeout: 5000

  Ability to force disable chat signing on 1.19.3+

  force-disable-modern-chat-signing: true messages: too-big-packet: "{PRFX}{NL}{NL}&cYour client sent too big packet!" invalid-ping: "{PRFX}{NL}{NL}&cYour client sent invalid ping packet!" invalid-switch: "{PRFX}{NL}{NL}&cYour client sent an unexpected state switching packet!" time-out: "{PRFX}{NL}{NL}Timed out."

[mdxd44]

please reopen and attach logs if this issue is still present on latest velocity and limbo* builds