653 skills found · Page 9 of 22
rubiruchi / Directed Acyclic Graph For Peer To Peer Distributed Communication In Vehicular NetworkInternet of things(IoT) and Internet of Vehicles(IoV) are the buzz words today. Building a smart vehicle running on a smart road that could respond to the very urgent requests such as reporting an accident ahead or basic requests such as down- loading a song at the blink of an eye is the hottest topic researchers and computer scientists are working on. The latest testing and later the rolling out of 5G technology will prove to be a boon in providing the required speed, which will further enhance safety as well as Quality-of-service(QoS) concerns. Hashgraphs, a superior distributed ledger technology, is used to create a communication network between various ve- hicles and other essential parameters. The decentral- ized system will check any delay in responses through the inherent consensus process, which is the USP of hashgraph. Scheduling the requests is done according to the priorities to provide a better Quality-of-Service. We have also compared why hashgraph surpasses other counter-parts such as generic blockchain or ethereum. The proposed model is simulated using Omnetpp simulation by making proper design and network description files. Messages can be seen getting transferred between the vehicles, and hashgraph is implemented for prioritizing the messages
Festusnkrumah / The SupremeFree Methods ✅💰, [7/27/21, 10:21 AM] Requirements ✓usa no. ✓vpn ie. Snapvpn.(that changes ip) ✓Gmail account Free Methods ✅💰, [7/27/21, 10:22 AM] STEPS Free Methods ✅💰, [7/27/21, 10:22 AM] ✓Firstly make sure you have a real USA number (it is only from someone from USA u can get that from) because u need an OTP to activate it from the person. After u have seen someone to give u a USA number. You signup with your Gmail account and password ✓After Signing up you input the Zip code of the number you want i.e States e.g California or Texas ✓After you input the Zip code,it shows you a list of USA number you can choose from according to your choice. ✓After selecting your number,it shows you a menu where you have to input (The real USA number to verify your Google voice number that will be given to you) ✓Make sure the person who gave you the number is online because you need an OTP from the person to verify it ✓Once you verify it,with the OTP congratulations .you now have a fully working USA number for all purpose ✓If you want to open any account like WhatsApp, Facebook, telegram and others,You can use the number to open it because you will be receiving your messages from the app Free Methods ✅💰, [7/28/21, 8:35 AM] [😱 Sticker] Free Methods ✅💰, [7/28/21, 8:36 AM] If you looking to open your own Anon bank drops for Dropping slips, Wire Transfers, Direct deposit, and (ACH) Bank Transfers, this is a guide you can follow: Free Methods ✅💰, [7/28/21, 8:37 AM] Next, Direct yourself to the Banking site of your choice. For this guide, I went with Capital One 360 Account. Once you're on the site and have opened the application for the 360 acct, start filling in the Fullz info Leave EVERYTHING EXACTLY THE SAME except the Email, which you should change to one that you have access to. Free Methods ✅💰, [7/28/21, 8:41 AM] Here's the correct fullz format that you'll need to use: - NAME: - ADDRESS: - CITY: - ZIP CODE: - STATE ISSUED: - D.O.B: - SSN: - MMN: - DRIVERSLICENSE: Some other details that may or may not be included are the IP ADDRESS,CC,CREDIT REPORT. Always do Background checks on your Fullz especially if you plan on using for opening A Bank Drop. Fullz also may come with CC but you can put it to the side if it was. Free Methods ✅💰, [7/28/21, 8:41 AM] Unless the Fullz you have is in your current state where you are then you may be able to slide your drop address to receive the card in there Some banks might ask if your mailing and home address are the same. Untick the box and enter you drop address there instead. I suggest opening a free outlook.com or yandex.com email in Fullz name once you've filled in everything. The application will process you to a questions screen on the Fullz which if you took it upon yourself to do before hand, a background check on the Fullz will greatly come in handy for this part of the process. If you answer the questions atleast good enough to fool the system, your drop application should go through and direct you to a screen with your acct and routing # or a screen asking you how you will fund the acct. Free Methods ✅💰, [7/28/21, 8:41 AM] Here's one thing to note on the Bank OpenUps and when applying for the Unemployment too: Always use a computer and proxy same as state. Banks can access your cookies and other stuff when you log on a device. A vpn ain’t always strong enough That’s why it’s better to use a computer. Free Methods ✅💰, [7/31/21, 1:45 PM] 👊How to Register Chime Bank and getting VCC for fast cashout. Free Methods ✅💰, [8/1/21, 10:11 AM] MOBILE DEPOSIT(MD) COMPLETE TUTORIAL✅ NOTE: Here are the things required for you to do a Mobile Deposit(MD) loading • A PC, Android or Iphone • A Paid Vpn • The Bank You Loading Mobile App • A Cheque Sample •The Drop details, including the online access. ALL TOOLS AVAILABLE @MoneyMachine1O1
Ch-Jad / CH JaDi Rajput1# Cmder [](https://gitter.im/cmderdev/cmder?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) [](https://ci.appveyor.com/project/MartiUK/cmder) Cmder is a **software package** created out of pure frustration over absence of usable console emulator on Windows. It is based on [ConEmu](https://conemu.github.io/) with *major* config overhaul, comes with a Monokai color scheme, amazing [clink](https://chrisant996.github.io/clink/) (further enhanced by [clink-completions](https://github.com/vladimir-kotikov/clink-completions)) and a custom prompt layout.  ## Why use it The main advantage of Cmder is portability. It is designed to be totally self-contained with no external dependencies, which makes it great for **USB Sticks** or **cloud storage**. So you can carry your console, aliases and binaries (like wget, curl and git) with you anywhere. The Cmder's user interface is also designed to be more eye pleasing, and you can compare the main differences between Cmder and ConEmu [here](https://conemu.github.io/en/cmder.html). ## Installation ### Single User Portable Config 1. Download the [latest release](https://github.com/cmderdev/cmder/releases/) 2. Extract the archive. *Note: This path should not be `C:\Program Files` or anywhere else that would require Administrator access for modifying configuration files* 3. (optional) Place your own executable files into the `%cmder_root%\bin` folder to be injected into your PATH. 4. Run `Cmder.exe` ### Shared Cmder install with Non-Portable Individual User Config 1. Download the [latest release](https://github.com/cmderdev/cmder/releases/) 2. Extract the archive to a shared location. 3. (optional) Place your own executable files and custom app folders into the `%cmder_root%\bin`. See: [bin/README.md](./bin/Readme.md) - This folder to be injected into your PATH by default. - See `/max_depth [1-5]` in 'Command Line Arguments for `init.bat`' table to add subdirectories recursively. 4. (optional) Place your own custom app folders into the `%cmder_root%\opt`. See: [opt/README.md](./opt/Readme.md) - This folder will NOT be injected into your PATH so you have total control of what gets added. 5. Run `Cmder.exe` with `/C` command line argument. Example: `cmder.exe /C %userprofile%\cmder_config` * This will create the following directory structure if it is missing. ``` c:\users\[CH JaDi Rajput]\cmder_config ├───bin ├───config │ └───profile.d └───opt ``` - (optional) Place your own executable files and custom app folders into `%userprofile%\cmder_config\bin`. - This folder to be injected into your PATH by default. - See `/max_depth [1-5]` in 'Command Line Arguments for `init.bat`' table to add subdirectories recursively. - (optional) Place your own custom app folders into the `%user_profile%\cmder_config\opt`. - This folder will NOT be injected into your PATH so you have total control of what gets added. * Both the shared install and the individual user config locations can contain a full set of init and profile.d scripts enabling shared config with user overrides. See below. ## Cmder.exe Command Line Arguments | Argument | Description | | ------------------- | ----------------------------------------------------------------------- | | `/C [user_root_path]` | Individual user Cmder root folder. Example: `%userprofile%\cmder_config` | | `/M` | Use `conemu-%computername%.xml` for ConEmu settings storage instead of `user_conemu.xml` | | `/REGISTER [ALL, USER]` | Register a Windows Shell Menu shortcut. | | `/UNREGISTER [ALL, USER]` | Un-register a Windows Shell Menu shortcut. | | `/SINGLE` | Start Cmder in single mode. | | `/START [start_path]` | Folder path to start in. | | `/TASK [task_name]` | Task to start after launch. | | `/X [ConEmu extras pars]` | Forwards parameters to ConEmu | ## Context Menu Integration So you've experimented with Cmder a little and want to give it a shot in a more permanent home; ### Shortcut to open Cmder in a chosen folder 1. Open a terminal as an Administrator 2. Navigate to the directory you have placed Cmder 3. Execute `.\cmder.exe /REGISTER ALL` _If you get a message "Access Denied" ensure you are executing the command in an **Administrator** prompt._ In a file explorer window right click in or on a directory to see "Cmder Here" in the context menu. ## Keyboard shortcuts ### Tab manipulation * <kbd>Ctrl</kbd> + <kbd>T</kbd> : New tab dialog (maybe you want to open cmd as admin?) * <kbd>Ctrl</kbd> + <kbd>W</kbd> : Close tab * <kbd>Ctrl</kbd> + <kbd>D</kbd> : Close tab (if pressed on empty command) * <kbd>Shift</kbd> + <kbd>Alt</kbd> + <kbd>#Number</kbd> : Fast new tab: <kbd>1</kbd> - CMD, <kbd>2</kbd> - PowerShell * <kbd>Ctrl</kbd> + <kbd>Tab</kbd> : Switch to next tab * <kbd>Ctrl</kbd> + <kbd>Shift</kbd> + <kbd>Tab</kbd> : Switch to previous tab * <kbd>Ctrl</kbd> + <kbd>#Number</kbd> : Switch to tab #Number * <kbd>Alt</kbd> + <kbd>Enter</kbd>: Fullscreen ### Shell * <kbd>Ctrl</kbd> + <kbd>Alt</kbd> + <kbd>U</kbd> : Traverse up in directory structure (lovely feature!) * <kbd>End</kbd>, <kbd>Home</kbd>, <kbd>Ctrl</kbd> : Traversing text with as usual on Windows * <kbd>Ctrl</kbd> + <kbd>R</kbd> : History search * <kbd>Shift</kbd> + Mouse : Select and copy text from buffer _(Some shortcuts are not yet documented, though they exist - please document them here)_ ## Features ### Access to multiple shells in one window using tabs You can open multiple tabs each containing one of the following shells: | Task | Shell | Description | | ---- | ----- | ----------- | | Cmder | `cmd.exe` | Windows `cmd.exe` shell enhanced with Git, Git aware prompt, Clink (GNU Readline), and Aliases. | | Cmder as Admin | `cmd.exe` | Administrative Windows `cmd.exe` Cmder shell. | | PowerShell | `powershell.exe` | Windows PowerShell enhanced with Git and Git aware prompt . | | PowerShell as Admin | `powershell.exe` | Administrative Windows `powershell.exe` Cmder shell. | | Bash | `bash.exe` | Unix/Linux like bash shell running on Windows. | | Bash as Admin | `bash.exe` | Administrative Unix/Linux like bash shell running on Windows. | | Mintty | `bash.exe` | Unix/Linux like bash shell running on Windows. See below for Mintty configuration differences | | Mintty as Admin | `bash.exe` | Administrative Unix/Linux like bash shell running on Windows. See below for Mintty configuration differences | Cmder, PowerShell, and Bash tabs all run on top of the Windows Console API and work as you might expect in Cmder with access to use ConEmu's color schemes, key bindings and other settings defined in the ConEmu Settings dialog. ⚠ *NOTE:* Only the full edition of Cmder comes with a pre-installed bash, using a vendored [git-for-windows](https://gitforwindows.org/) installation. The pre-configured Bash tabs may not work on Cmder mini edition without additional configuration. You may however, choose to use an external installation of bash, such as Microsoft's [Subsystem for Linux](https://docs.microsoft.com/en-us/windows/wsl/install-win10) (called WSL) or the [Cygwin](https://cygwin.com/) project which provides POSIX support on windows. ⚠ *NOTE:* Mintty tabs use a program called 'mintty' as the terminal emulator that is not based on the Windows Console API, rather it's rendered graphically by ConEmu. Mintty differs from the other tabs in that it supports xterm/xterm-256color TERM types, and does not work with ConEmu settings like color schemes and key bindings. As such, some differences in functionality are to be expected, such as Cmder not being able to apply a system-wide configuration to it. As a result mintty specific config is done via the `[%USERPROFILE%|$HOME]/.minttyrc` file. You may read more about Mintty and its config file [here](https://github.com/mintty/mintty). An example of setting Cmder portable terminal colors for mintty: From a bash/mintty shell: ``` cd $CMDER_ROOT/vendor git clone https://github.com/karlin/mintty-colors-solarized.git cd mintty-colors-solarized/ echo source \$CMDER_ROOT/vendor/mintty-colors-solarized/mintty-solarized-dark.sh>>$CMDER_ROOT/config/user_profile.sh ``` You may find some Monokai color schemes for mintty to match Cmder [here](https://github.com/oumu/mintty-color-schemes/blob/master/base16-monokai-mod.minttyrc). ### Changing Cmder Default `cmd.exe` Prompt Config File The default Cmder shell `cmd::Cmder` prompt is customized using `Clink` and is configured by editing a config file that exists in one of two locations: - Single User Portable Config `%CMDER_ROOT%\config\cmder_prompt_config.lua` - Shared Cmder install with Non-Portable Individual User Config `%CMDER_USER_CONFIG%\cmder_prompt_config.lua` If your Cmder setup does not have this file create it from `%CMDER_ROOT%\vendor\cmder_prompt_config.lua.default` Customizations include: - Colors. - Single/Multi-line. - Full path/Folder only. - `[user]@[host]` to the beginning of the prompt. - `~` for home directory. - `λ` symbol Documentation is in the file for each setting. ### Changing Cmder Default `cmd.exe` Shell Startup Behaviour Using Task Arguments 1. Press <kbd>Win</kbd> + <kbd>Alt</kbd> + <kbd>T</kbd> 1. Click either: * `1. {cmd::Cmder as Admin}` * `2. {cmd::Cmder}` 1. Add command line arguments where specified below: *Note: Pay attention to the quotes!* ``` cmd /s /k ""%ConEmuDir%\..\init.bat" [ADD ARGS HERE]" ``` ##### Command Line Arguments for `init.bat` | Argument | Description | Default | | ----------------------------- | ---------------------------------------------------------------------------------------------- | ------------------------------------- | | `/c [user cmder root]` | Enables user bin and config folders for 'Cmder as admin' sessions due to non-shared environment. | not set | | `/d` | Enables debug output. | not set | | `/f` | Enables Cmder Fast Init Mode. This disables some features, see pull request [#1492](https://github.com/cmderdev/cmder/pull/1942) for more details. | not set | | `/t` | Enables Cmder Timed Init Mode. This displays the time taken run init scripts | not set | | `/git_install_root [file path]` | User specified Git installation root path. | `%CMDER_ROOT%\vendor\Git-for-Windows` | | `/home [home folder]` | User specified folder path to set `%HOME%` environment variable. | `%userprofile%` | | `/max_depth [1-5]` | Define max recurse depth when adding to the path for `%cmder_root%\bin` and `%cmder_user_bin%` | 1 | | `/nix_tools [0-2]` | Define how `*nix` tools are added to the path. Prefer Windows Tools: 1, Prefer *nix Tools: 2, No `/usr/bin` in `%PATH%`: 0 | 1 | | `/svn_ssh [path to ssh.exe]` | Define `%SVN_SSH%` so we can use git svn with ssh svn repositories. | `%GIT_INSTALL_ROOT%\bin\ssh.exe` | | `/user_aliases [file path]` | File path pointing to user aliases. | `%CMDER_ROOT%\config\user_aliases.cmd` | | `/v` | Enables verbose output. | not set | | (custom arguments) | User defined arguments processed by `cexec`. Type `cexec /?` for more usage. | not set | ### Cmder Shell User Config Single user portable configuration is possible using the cmder specific shell config files. Edit the below files to add your own configuration: | Shell | Cmder Portable User Config | | ------------- | ----------------------------------------- | | Cmder | `%CMDER_ROOT%\config\user_profile.cmd` | | PowerShell | `$ENV:CMDER_ROOT\config\user_profile.ps1` | | Bash/Mintty | `$CMDER_ROOT/config/user_profile.sh` | Note: Bash and Mintty sessions will also source the `$HOME/.bashrc` file if it exists after it sources `$CMDER_ROOT/config/user_profile.sh`. You can write `*.cmd|*.bat`, `*.ps1`, and `*.sh` scripts and just drop them in the `%CMDER_ROOT%\config\profile.d` folder to add startup config to Cmder. | Shell | Cmder `Profile.d` Scripts | | ------------- | -------------------------------------------------- | | Cmder | `%CMDER_ROOT%\config\profile.d\*.bat and *.cmd` | | PowerShell | `$ENV:CMDER_ROOT\config\profile.d\*.ps1` | | Bash/Mintty | `$CMDER_ROOT/config/profile.d/*.sh` | #### Git Status Opt-Out To disable Cmder prompt git status globally add the following to `~/.gitconfig` or locally for a single repo `[repo]/.git/config` and start a new session. *Note: This configuration is not portable* ``` [cmder] status = false # Opt out of Git status for 'ALL' Cmder supported shells. cmdstatus = false # Opt out of Git status for 'Cmd.exe' shells. psstatus = false # Opt out of Git status for 'Powershell.exe and 'Pwsh.exe' shells. shstatus = false # Opt out of Git status for 'bash.exe' shells. ``` ### Aliases #### Cmder(`Cmd.exe`) Aliases You can define simple aliases for `cmd.exe` sessions with a command like `alias name=command`. Cmd.exe aliases support optional parameters through the `$1-9` or the `$*` special characters so the alias `vi=vim.exe $*` typed as `vi [filename]` will open `[filename]` in `vim.exe`. Cmd.exe aliases can also be more complex. See: [DOSKEY.EXE documentation](https://docs.microsoft.com/en-us/windows-server/administration/windows-commands/doskey) for additional details on complex aliases/macros for `cmd.exe` Aliases defined using the `alias.bat` command will automatically be saved in the `%CMDER_ROOT%\config\user_aliases.cmd` file To make an alias and/or any other profile settings permanent add it to one of the following: Note: These are loaded in this order by `$CMDER_ROOT/vendor/init.bat`. Anything stored in `%CMDER_ROOT%` will be a portable setting and will follow cmder to another machine. * `%CMDER_ROOT%\config\profile.d\*.cmd` and `\*.bat` * `%CMDER_ROOT%\config\user_aliases.cmd` * `%CMDER_ROOT%\config\user_profile.cmd` #### Bash.exe|Mintty.exe Aliases Bash shells support simple and complex aliases with optional parameters natively so they work a little different. Typing `alias name=command` will create an alias only for the current running session. To make an alias and/or any other profile settings permanent add it to one of the following: Note: These are loaded in this order by `$CMDER_ROOT/vendor/git-for-windows/etc/profile.d/cmder.sh`. Anything stored in `$CMDER_ROOT` will be a portable setting and will follow cmder to another machine. * `$CMDER_ROOT/config/profile.d/*.sh` * `$CMDER_ROOT/config/user_profile.sh` * `$HOME/.bashrc` If you add bash aliases to `$CMDER_ROOT/config/user_profile.sh` they will be portable and follow your Cmder folder if you copy it to another machine. `$HOME/.bashrc` defined aliases are not portable. #### PowerShell.exe Aliases PowerShell has native simple alias support, for example `[new-alias | set-alias] alias command`, so complex aliases with optional parameters are not supported in PowerShell sessions. Type `get-help [new-alias|set-alias] -full` for help on PowerShell aliases. To make an alias and/or any other profile settings permanent add it to one of the following: Note: These are loaded in this order by `$ENV:CMDER_ROOT\vendor\user_profile.ps1`. Anything stored in `$ENV:CMDER_ROOT` will be a portable setting and will follow cmder to another machine. * `$ENV:CMDER_ROOT\config\profile.d\*.ps1` * `$ENV:CMDER_ROOT\config\user_profile.ps1` ### SSH Agent To start the vendored SSH agent simply call `start-ssh-agent`, which is in the `vendor/git-for-windows/cmd` folder. If you want to run SSH agent on startup, include the line `@call "%GIT_INSTALL_ROOT%/cmd/start-ssh-agent.cmd"` in `%CMDER_ROOT%/config/user_profile.cmd` (usually just uncomment it). ### Vendored Git Cmder is by default shipped with a vendored Git installation. On each instance of launching Cmder, an attempt is made to locate any other user provided Git binaries. Upon finding a `git.exe` binary, Cmder further compares its version against the vendored one _by executing_ it. The vendored `git.exe` binary is _only_ used when it is more recent than the user-installed one. You may use your favorite version of Git by including its path in the `%PATH%` environment variable. Moreover, the **Mini** edition of Cmder (found on the [downloads page](https://github.com/cmderdev/cmder/releases)) excludes any vendored Git binaries. ### Using external Cygwin/Babun, MSys2, WSL, or Git for Windows SDK with Cmder. You may run bash (the default shell used on Linux, macOS and GNU/Hurd) externally on Cmder, using the following instructions: 1. Setup a new task by pressing <kbd>Win</kbd> +<kbd>Alt</kbd> + <kbd>T</kbd>. 1. Click the `+` button to add a task. 1. Name the new task in the top text box. 1. Provide task parameters, this is optional. 1. Add `cmd /c "[path_to_external_env]\bin\bash --login -i" -new_console` to the `Commands` text box. **Recommended Optional Steps:** Copy the `vendor/cmder_exinit` file to the Cygwin/Babun, MSys2, or Git for Windows SDK environments `/etc/profile.d/` folder to use portable settings in the `$CMDER_ROOT/config` folder. Note: MinGW could work if the init scripts include `profile.d` but this has not been tested. The destination file extension depends on the shell you use in that environment. For example: * bash - Copy to `/etc/profile.d/cmder_exinit.sh` * zsh - Copy to `/etc/profile.d/cmder_exinit.zsh` Uncomment and edit the below line in the script to use Cmder config even when launched from outside Cmder. ``` # CMDER_ROOT=${USERPROFILE}/cmder # This is not required if launched from Cmder. ``` ### Customizing user sessions using `init.bat` custom arguments. You can pass custom arguments to `init.bat` and use `cexec.cmd` in your `user_profile.cmd` to evaluate these arguments then execute commands based on a particular flag being detected or not. `init.bat` creates two shortcuts for using `cexec.cmd` in your profile scripts. #### `%ccall%` - Evaluates flags, runs commands if found, and returns to the calling script and continues. ``` ccall=call C:\Users\user\cmderdev\vendor\bin\cexec.cmd ``` Example: `%ccall% /startnotepad start notepad.exe` #### `%cexec%` - Evaluates flags, runs commands if found, and does not return to the calling script. ``` cexec=C:\Users\user\cmderdev\vendor\bin\cexec.cmd ``` Example: `%cexec% /startnotepad start notepad.exe` It is useful when you have multiple tasks to execute `cmder` and need it to initialize the session differently depending on the task chosen. To conditionally start `notepad.exe` when you start a specific `cmder` task: * Press <kbd>win</kbd>+<kbd>alt</kbd>+<kbd>t</kbd> * Click `+` to add a new task. * Add the below to the `Commands` block: ```batch cmd.exe /k ""%ConEmuDir%\..\init.bat" /startnotepad" ``` * Add the below to your `%cmder_root%\config\user_profile.cmd` ```batch %ccall% "/startNotepad" "start" "notepad.exe"` ``` To see detailed usage of `cexec`, type `cexec /?` in cmder. ### Integrating Cmder with [Hyper](https://github.com/zeit/hyper), [Microsoft VS Code](https://code.visualstudio.com/), and your favorite IDEs Cmder by default comes with a vendored ConEmu installation as the underlying terminal emulator, as stated [here](https://conemu.github.io/en/cmder.html). However, Cmder can in fact run in a variety of other terminal emulators, and even integrated IDEs. Assuming you have the latest version of Cmder, follow the following instructions to get Cmder working with your own terminal emulator. For instructions on how to integrate Cmder with your IDE, please read our [Wiki section](https://github.com/cmderdev/cmder/wiki#cmder-integration). ## Upgrading The process of upgrading Cmder depends on the version/build you are currently running. If you have a `[cmder_root]/config/user[-|_]conemu.xml`, you are running a newer version of Cmder, follow the below process: 1. Exit all Cmder sessions and relaunch `[cmder_root]/cmder.exe`, this backs up your existing `[cmder_root]/vendor/conemu-maximus5/conemu.xml` to `[cmder_root]/config/user[-|_]conemu.xml`. * The `[cmder_root]/config/user[-|_]conemu.xml` contains any custom settings you have made using the 'Setup Tasks' settings dialog. 2. Exit all Cmder sessions and backup any files you have manually edited under `[cmder_root]/vendor`. * Editing files under `[cmder_root]/vendor` is not recommended since you will need to re-apply these changes after any upgrade. All user customizations should go in `[cmder_root]/config` folder. 3. Delete the `[cmder_root]/vendor` folder. 4. Extract the new `cmder.zip` or `cmder_mini.zip` into `[cmder_root]/` overwriting all files when prompted. If you do not have a `[cmder_root]/config/user[-|_]conemu.xml`, you are running an older version of cmder, follow the below process: 1. Exit all Cmder sessions and backup `[cmder_root]/vendor/conemu-maximus5/conemu.xml` to `[cmder_root]/config/user[-|_]conemu.xml`. 2. Backup any files you have manually edited under `[cmder_root]/vendor`. * Editing files under `[cmder_root]/vendor` is not recommended since you will need to re-apply these changes after any upgrade. All user customizations should go in `[cmder_root]/config` folder. 3. Delete the `[cmder_root]/vendor` folder. 4. Extract the new `cmder.zip` or `cmder_mini.zip` into `[cmder_root]/` overwriting all files when prompted. ## Current development builds You can download builds of the current development branch by going to AppVeyor via the following link: [](https://ci.appveyor.com/project/MartiUK/cmder/branch/master/artifacts) ## License All software included is bundled with own license The MIT License (MIT) Copyright (c) 2016 Samuel Vasko Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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SOYJUN / Implement ODR ProtocolOverview For this assignment you will be developing and implementing : An On-Demand shortest-hop Routing (ODR) protocol for networks of fixed but arbitrary and unknown connectivity, using PF_PACKET sockets. The implementation is based on (a simplified version of) the AODV algorithm. Time client and server applications that send requests and replies to each other across the network using ODR. An API you will implement using Unix domain datagram sockets enables applications to communicate with the ODR mechanism running locally at their nodes. I shall be discussing the assignment in class on Wednesday, October 29, and Monday, November 3. The following should prove useful reference material for the assignment : Sections 15.1, 15.2, 15.4 & 15.6, Chapter 15, on Unix domain datagram sockets. PF_PACKET(7) from the Linux manual pages. You might find these notes made by a past CSE 533 student useful. Also, the following link http://www.pdbuchan.com/rawsock/rawsock.html contains useful code samples that use PF_PACKET sockets (as well as other code samples that use raw IP sockets which you do not need for this assignment, though you will be using these types of sockets for Assignment 4). Charles E. Perkins & Elizabeth M. Royer. “Ad-hoc On-Demand Distance Vector Routing.” Proceedings of the 2nd IEEE Workshop on Mobile Computing Systems and Applications, New Orleans, Louisiana, February 1999, pp. 90 - 100. The VMware environment minix.cs.stonybrook.edu is a Linux box running VMware. A cluster of ten Linux virtual machines, called vm1 through vm10, on which you can gain access as root and run your code have been created on minix. See VMware Environment Hosts for further details. VMware instructions takes you to a page that explains how to use the system. The ten virtual machines have been configured into a small virtual intranet of Ethernet LANs whose topology is (in principle) unknown to you. There is a course account cse533 on node minix, with home directory /users/cse533. In there, you will find a subdirectory Stevens/unpv13e , exactly as you are used to having on the cs system. You should develop your source code and makefiles for handing in accordingly. You will be handing in your source code on the minix node. Note that you do not need to link against the socket library (-lsocket) in Linux. The same is true for -lnsl and -lresolv. For example, take a look at how the LIBS variable is defined for Solaris, in /home/courses/cse533/Stevens/unpv13e_solaris2.10/Make.defines (on compserv1, say) : LIBS = ../libunp.a -lresolv -lsocket -lnsl -lpthread But if you take a look at Make.defines on minix (/users/cse533/Stevens/unpv13e/Make.defines) you will find only: LIBS = ../libunp.a -lpthread The nodes vm1 , . . . . . , vm10 are all multihomed : each has two (or more) interfaces. The interface ‘eth0 ’ should be completely ignored and is not to be used for this assignment (because it shows all ten nodes as if belonging to the same single Ethernet 192.168.1.0/24, rather than to an intranet composed of several Ethernets). Note that vm1 , . . . . . , vm10 are virtual machines, not real ones. One implication of this is that you will not be able to find out what their (virtual) IP addresses are by using nslookup and such. To find out these IP addresses, you need to look at the file /etc/hosts on minix. More to the point, invoking gethostbyname for a given vm will return to you only the (primary) IP address associated with the interface eth0 of that vm (which is the interface you will not be using). It will not return to you any other IP address for the node. Similarly, gethostbyaddr will return the vm node name only if you give it the (primary) IP address associated with the interface eth0 for the node. It will return nothing if you give it any other IP address for the node, even though the address is perfectly valid. Because of this, and because it will ease your task to be able to use gethostbyname and gethostbyaddr in a straightforward way, we shall adopt the (primary) IP addresses associated with interfaces eth0 as the ‘canonical’ IP addresses for the nodes (more on this below). Time client and server A time server runs on each of the ten vm machines. The client code should also be available on each vm so that it can be evoked at any of them. Normally, time clients/servers exchange request/reply messages using the TCP/UDP socket API that, effectively, enables them to receive service (indirectly, via the transport layer) from the local IP mechanism running at their nodes. You are to implement an API using Unix domain sockets to access the local ODR service directly (somewhat similar, in effect, to the way that raw sockets permit an application to access IP directly). Use Unix domain SOCK_DGRAM, rather than SOCK_STREAM, sockets (see Figures 15.5 & 15.6, pp. 418 - 419). API You need to implement a msg_send function that will be called by clients/servers to send requests/replies. The parameters of the function consist of : int giving the socket descriptor for write char* giving the ‘canonical’ IP address for the destination node, in presentation format int giving the destination ‘port’ number char* giving message to be sent int flag if set, force a route rediscovery to the destination node even if a non-‘stale’ route already exists (see below) msg_send will format these parameters into a single char sequence which is written to the Unix domain socket that a client/server process creates. The sequence will be read by the local ODR from a Unix domain socket that the ODR process creates for itself. Recall that the ‘canonical’ IP address for a vm node is the (primary) IP address associated with the eth0 interface for the node. It is what will be returned to you by a call to gethostbyname. Similarly, we need a msg_recv function which will do a (blocking) read on the application domain socket and return with : int giving socket descriptor for read char* giving message received char* giving ‘canonical’ IP address for the source node of message, in presentation format int* giving source ‘port’ number This information is written as a single char sequence by the ODR process to the domain socket that it creates for itself. It is read by msg_recv from the domain socket the client/server process creates, decomposed into the three components above, and returned to the caller of msg_recv. Also see the section below entitled ODR and the API. Client When a client is evoked at a node, it creates a domain datagram socket. The client should bind its socket to a ‘temporary’ (i.e., not ‘well-known’) sun_path name obtained from a call to tmpnam() (cf. line 10, Figure 15.6, p. 419) so that multiple clients may run at the same node. Note that tmpnam() is actually highly deprecated. You should use the mkstemp() function instead - look up the online man pages on minix (‘man mkstemp’) for details. As you run client code again and again during the development stage, the temporary files created by the calls to tmpnam / mkstemp start to proliferate since these files are not automatically removed when the client code terminates. You need to explicitly remove the file created by the client evocation by issuing a call to unlink() or to remove() in your client code just before the client code exits. See the online man pages on minix (‘man unlink’, ‘man remove’) for details. The client then enters an infinite loop repeating the steps below. The client prompts the user to choose one of vm1 , . . . . . , vm10 as a server node. Client msg_sends a 1 or 2 byte message to server and prints out on stdout the message client at node vm i1 sending request to server at vm i2 (In general, throughout this assignment, “trace” messages such as the one above should give the vm names and not IP addresses of the nodes.) Client then blocks in msg_recv awaiting response. This attempt to read from the domain socket should be backed up by a timeout in case no response ever comes. I leave it up to you whether you ‘wrap’ the call to msg_recv in a timeout, or you implement the timeout inside msg_recv itself. When the client receives a response it prints out on stdout the message client at node vm i1 : received from vm i2 <timestamp> If, on the other hand, the client times out, it should print out the message client at node vm i1 : timeout on response from vm i2 The client then retransmits the message out, setting the flag parameter in msg_send to force a route rediscovery, and prints out an appropriate message on stdout. This is done only once, when a timeout for a given message to the server occurs for the first time. Client repeats steps 1. - 3. Server The server creates a domain datagram socket. The server socket is assumed to have a (node-local) ‘well-known’ sun_path name which it binds to. This ‘well-known’ sun_path name is designated by a (network-wide) ‘well-known’ ‘port’ value. The time client uses this ‘port’ value to communicate with the server. The server enters an infinite sequence of calls to msg_recv followed by msg_send, awaiting client requests and responding to them. When it responds to a client request, it prints out on stdout the message server at node vm i1 responding to request from vm i2 ODR The ODR process runs on each of the ten vm machines. It is evoked with a single command line argument which gives a “staleness” time parameter, in seconds. It uses get_hw_addrs (available to you on minix in ~cse533/Asgn3_code) to obtain the index, and associated (unicast) IP and Ethernet addresses for each of the node’s interfaces, except for the eth0 and lo (loopback) interfaces, which should be ignored. In the subdirectory ~cse533/Asgn3_code (/users/cse533/Asgn3_code) on minix I am providing you with two functions, get_hw_addrs and prhwaddrs. These are analogous to the get_ifi_info_plus and prifinfo_plus of Assignment 2. Like get_ifi_info_plus, get_hw_addrs uses ioctl. get_hw_addrs gets the (primary) IP address, alias IP addresses (if any), HW address, and interface name and index value for each of the node's interfaces (including the loopback interface lo). prhwaddrs prints that information out. You should modify and use these functions as needed. Note that if an interface has no HW address associated with it (this is, typically, the case for the loopback interface lo for example), then ioctl returns get_hw_addrs a HW address which is the equivalent of 00:00:00:00:00:00 . get_hw_addrs stores this in the appropriate field of its data structures as it would with any HW address returned by ioctl, but when prhwaddrs comes across such an address, it prints a blank line instead of its usual ‘HWaddr = xx:xx:xx:xx:xx:xx’. The ODR process creates one or more PF_PACKET sockets. You will need to try out PF_PACKET sockets for yourselves and familiarize yourselves with how they behave. If, when you read from the socket and provide a sockaddr_ll structure, the kernel returns to you the index of the interface on which the incoming frame was received, then one socket will be enough. Otherwise, somewhat in the manner of Assignment 2, you shall have to create a PF_PACKET socket for every interface of interest (which are all the interfaces of the node, excluding interfaces lo and eth0 ), and bind a socket to each interface. Furthermore, if the kernel also returns to you the source Ethernet address of the frame in the sockaddr_ll structure, then you can make do with SOCK_DGRAM type PF_PACKET sockets; otherwise you shall have to use SOCK_RAW type sockets (although I would prefer you to use SOCK_RAW type sockets anyway, even if it turns out you can make do with SOCK_DGRAM type). The socket(s) should have a protocol value (no larger than 0xffff so that it fits in two bytes; this value is given as a network-byte-order parameter in the call(s) to function socket) that identifies your ODR protocol. The <linux/if_ether.h> include file (i.e., the file /usr/include/linux/if_ether.h) contains protocol values defined for the standard protocols typically found on an Ethernet LAN, as well as other values such as ETH_P_ALL. You should set protocol to a value of your choice which is not a <linux/if_ether.h> value, but which is, hopefully, unique to yourself. Remember that you will all be running your code using the same root account on the vm1 , . . . . . , vm10 nodes. So if two of you happen to choose the same protocol value and happen to be running on the same vm node at the same time, your applications will receive each other’s frames. For that reason, try to choose a protocol value for the socket(s) that is likely to be unique to yourself (something based on your Stony Brook student ID number, for example). This value effectively becomes the protocol value for your implementation of ODR, as opposed to some other cse 533 student's implementation. Because your value of protocol is to be carried in the frame type field of the Ethernet frame header, the value chosen should be not less than 1536 (0x600) so that it is not misinterpreted as the length of an Ethernet 802.3 frame. Note from the man pages for packet(7) that frames are passed to and from the socket without any processing in the frame content by the device driver on the other side of the socket, except for calculating and tagging on the 4-byte CRC trailer for outgoing frames, and stripping that trailer before delivering incoming frames to the socket. Nevertheless, if you write a frame that is less than 60 bytes, the necessary padding is automatically added by the device driver so that the frame that is actually transmitted out is the minimum Ethernet size of 64 bytes. When reading from the socket, however, any such padding that was introduced into a short frame at the sending node to bring it up to the minimum frame size is not stripped off - it is included in what you receive from the socket (thus, the minimum number of bytes you receive should never be less than 60). Also, you will have to build the frame header for outgoing frames yourselves (assuming you use SOCK_RAW type sockets). Bear in mind that the field values in that header have to be in network order. The ODR process also creates a domain datagram socket for communication with application processes at the node, and binds the socket to a ‘well known’ sun_path name for the ODR service. Because it is dealing with fixed topologies, ODR is, by and large, considerably simpler than AODV. In particular, discovered routes are relatively stable and there is no need for all the paraphernalia that goes with the possibility of routes changing (such as maintenance of active nodes in the routing tables and timeout mechanisms; timeouts on reverse links; lifetime field in the RREP messages; etc.) Nor will we be implementing source_sequence_#s (in the RREQ messages), and dest_sequence_# (in RREQ and RREP messages). In reality, we should (though we will not, for the sake of simplicity, be doing so) implement some sort of sequence number mechanism, or some alternative mechanism such as split-horizon for example, if we are to avoid possible scenarios of routing loops in a “count to infinity” context (I shall explain this point in class). However, we want ODR to discover shortest-hop paths, and we want it to do so in a reasonably efficient manner. This necessitates having one or two aspects of its operations work in a different, possibly slightly more complicated, way than AODV does. ODR has several basic responsibilities : Build and maintain a routing table. For each destination in the table, the routing table structure should include, at a minimum, the next-hop node (in the form of the Ethernet address for that node) and outgoing interface index, the number of hops to the destination, and a timestamp of when the the routing table entry was made or last “reconfirmed” / updated. Note that a destination node in the table is to be identified only by its ‘canonical’ IP address, and not by any other IP addresses the node has. Generate a RREQ in response to a time client calling msg_send for a destination for which ODR has no route (or for which a route exists, but msg_send has the flag parameter set or the route has gone ‘stale’ – see below), and ‘flood’ the RREQ out on all the node’s interfaces (except for the interface it came in on and, of course, the interfaces eth0 and lo). Flooding is done using an Ethernet broadcast destination address (0xff:ff:ff:ff:ff:ff) in the outgoing frame header. Note that a copy of the broadcast packet is supposed to / might be looped back to the node that sends it (see p. 535 in the Stevens textbook). ODR will have to take care not to treat these copies as new incoming RREQs. Also note that ODR at the client node increments the broadcast_id every time it issues a new RREQ for any destination node. When a RREQ is received, ODR has to generate a RREP if it is at the destination node, or if it is at an intermediate node that happens to have a route (which is not ‘stale’ – see below) to the destination. Otherwise, it must propagate the RREQ by flooding it out on all the node’s interfaces (except the interface the RREQ arrived on). Note that as it processes received RREQs, ODR should enter the ‘reverse’ route back to the source node into its routing table, or update an existing entry back to the source node if the RREQ received shows a shorter-hop route, or a route with the same number of hops but going through a different neighbour. The timestamp associated with the table entry should be updated whenever an existing route is either “reconfirmed” or updated. Obviously, if the node is going to generate a RREP, updating an existing entry back to the source node with a more efficient route, or a same-hops route using a different neighbour, should be done before the RREP is generated. Unlike AODV, when an intermediate node receives a RREQ for which it generates a RREP, it should nevertheless continue to flood the RREQ it received if the RREQ pertains to a source node whose existence it has heretofore been unaware of, or the RREQ gives it a more efficient route than it knew of back to the source node (the reason for continuing to flood the RREQ is so that other nodes in the intranet also become aware of the existence of the source node or of the potentially more optimal reverse route to it, and update their tables accordingly). However, since an RREP for this RREQ is being sent by our node, we do not want other nodes who receive the RREQ propagated by our node, and who might be in a position to do so, to also send RREPs. So we need to introduce a field in the RREQ message, not present in the AODV specifications, which acts like a “RREP already sent” field. Our node sets this field before further propagating the RREQ and nodes receiving an RREQ with this field set do not send RREPs in response, even if they are in a position to do so. ODR may, of course, receive multiple, distinct instances of the same RREQ (the combination of source_addr and broadcast_id uniquely identifies the RREQ). Such RREQs should not be flooded out unless they have a lower hop count than instances of that RREQ that had previously been received. By the same token, if ODR is in a position to send out a RREP, and has already done so for this, now repeating, RREQ , it should not send out another RREP unless the RREQ shows a more efficient, previously unknown, reverse route back to the source node. In other words, ODR should not generate essentially duplicative RREPs, nor generate RREPs to instances of RREQs that reflect reverse routes to the source that are not more efficient than what we already have. Relay RREPs received back to the source node (this is done using the ‘reverse’ route entered into the routing table when the corresponding RREQ was processed). At the same time, a ‘forward’ path to the destination is entered into the routing table. ODR could receive multiple, distinct RREPs for the same RREQ. The ‘forward’ route entered in the routing table should be updated to reflect the shortest-hop route to the destination, and RREPs reflecting suboptimal routes should not be relayed back to the source. In general, maintaining a route and its associated timestamp in the table in response to RREPs received is done in the same manner described above for RREQs. Forward time client/server messages along the next hop. (The following is important – you will lose points if you do not implement it.) Note that such application payload messages (especially if they are the initial request from the client to the server, rather than the server response back to the client) can be like “free” RREPs, enabling nodes along the path from source (client) to destination (server) node to build a reverse path back to the client node whose existence they were heretofore unaware of (or, possibly, to update an existing route with a more optimal one). Before it forwards an application payload message along the next hop, ODR at an intermediate node (and also at the final destination node) should use the message to update its routing table in this way. Thus, calls to msg_send by time servers should never cause ODR at the server node to initiate RREQs, since the receipt of a time client request implies that a route back to the client node should now exist in the routing table. The only exception to this is if the server node has a staleness parameter of zero (see below). A routing table entry has associated with it a timestamp that gives the time the entry was made into the table. When a client at a node calls msg_send, and if an entry for the destination node already exists in the routing table, ODR first checks that the routing information is not ‘stale’. A stale routing table entry is one that is older than the value defined by the staleness parameter given as a command line argument to the ODR process when it is executed. ODR deletes stale entries (as well as non-stale entries when the flag parameter in msg_send is set) and initiates a route rediscovery by issuing a RREQ for the destination node. This will force periodic updating of the routing tables to take care of failed nodes along the current path, Ethernet addresses that might have changed, and so on. Similarly, as RREQs propagate through the intranet, existing stale table entries at intermediate nodes are deleted and new route discoveries propagated. As noted above when discussing the processing of RREQs and RREPs, the associated timestamp for an existing table entry is updated in response to having the route either “reconfirmed” or updated (this applies to both reverse routes, by virtue of RREQs received, and to forward routes, by virtue of RREPs). Finally, note that a staleness parameter of 0 essentially indicates that the discovered route will be used only once, when first discovered, and then discarded. Effectively, an ODR with staleness parameter 0 maintains no real routing table at all ; instead, it forces route discoveries at every step of its operation. As a practical matter, ODR should be run with staleness parameter values that are considerably larger than the longest RTT on the intranet, otherwise performance will degrade considerably (and collapse entirely as the parameter values approach 0). Nevertheless, for robustness, we need to implement a mechanism by which an intermediate node that receives a RREP or application payload message for forwarding and finds that its relevant routing table entry has since gone stale, can intiate a RREQ to rediscover the route it needs. RREQ, RREP, and time client/server request/response messages will all have to be carried as encapsulated ODR protocol messages that form the data payload of Ethernet frames. So we need to design the structure of ODR protocol messages. The format should contain a type field (0 for RREQ, 1 for RREP, 2 for application payload ). The remaining fields in an ODR message will depend on what type it is. The fields needed for (our simplified versions of AODV’s) RREQ and RREP should be fairly clear to you, but keep in mind that you need to introduce two extra fields: The “RREP already sent” bit or field in RREQ messages, as mentioned above. A “forced discovery” bit or field in both RREQ and RREP messages: When a client application forces route rediscovery, this bit should be set in the RREQ issued by the client node ODR. Intermediate nodes that are not the destination node but which do have a route to the destination node should not respond with RREPs to an RREQ which has the forced discovery field set. Instead, they should continue to flood the RREQ so that it eventually reaches the destination node which will then respond with an RREP. The intermediate nodes relaying such an RREQ must update their ‘reverse’ route back to the source node accordingly, even if the new route is less efficient (i.e., has more hops) than the one they currently have in their routing table. The destination node responds to the RREQ with an RREP in which this field is also set. Intermediate nodes that receive such a forced discovery RREP must update their ‘forward’ route to the destination node accordingly, even if the new route is less efficient (i.e., has more hops) than the one they currently have in their routing table. This behaviour will cause a forced discovery RREQ to be responded to only by the destination node itself and not any other node, and will cause intermediate nodes to update their routing tables to both source and destination nodes in accordance with the latest routing information received, to cover the possibility that older routes are no longer valid because nodes and/or links along their paths have gone down. A type 2, application payload, message needs to contain the following type of information : type = 2 ‘canonical’ IP address of source node ‘port’ number of source application process (This, of course, is not a real port number in the TCP/UDP sense, but simply a value that ODR at the source node uses to designate the sun_path name for the source application’s domain socket.) ‘canonical’ IP address of destination node ‘port’ number of destination application process (This is passed to ODR by the application process at the source node when it calls msg_send. Its designates the sun_path name for an application’s domain socket at the destination node.) hop count (This starts at 0 and is incremented by 1 at each hop so that ODR can make use of the message to update its routing table, as discussed above.) number of bytes in application message The fields above essentially constitute a ‘header’ for the ODR message. Note that fields which you choose to have carry numeric values (rather than ascii characters, for example) must be in network byte order. ODR-defined numeric-valued fields in type 0, RREQ, and type 1, RREP, messages must, of course, also be in network byte order. Also note that only the ‘canonical’ IP addresses are used for the source and destination nodes in the ODR header. The same has to be true in the headers for type 0, RREQ, and type 1, RREP, messages. The general rule is that ODR messages only carry ‘canonical’ IP node addresses. The last field in the type 2 ODR message is essentially the data payload of the message. application message given in the call to msg_send An ODR protocol message is encapsulated as the data payload of an Ethernet frame whose header it fills in as follows : source address = Ethernet address of outgoing interface of the current node where ODR is processing the message. destination address = Ethernet broadcast address for type 0 messages; Ethernet address of next hop node for type 1 & 2 messages. protocol field = protocol value for the ODR PF_PACKET socket(s). Last but not least, whenever ODR writes an Ethernet frame out through its socket, it prints out on stdout the message ODR at node vm i1 : sending frame hdr src vm i1 dest addr ODR msg type n src vm i2 dest vm i3 where addr is in presentation format (i.e., hexadecimal xx:xx:xx:xx:xx:xx) and gives the destination Ethernet address in the outgoing frame header. Other nodes in the message should be identified by their vm name. A message should be printed out for each packet sent out on a distinct interface. ODR and the API When the ODR process first starts, it must construct a table in which it enters all well-known ‘port’ numbers and their corresponding sun_path names. These will constitute permanent entries in the table. Thereafter, whenever it reads a message off its domain socket, it must obtain the sun_path name for the peer process socket and check whether that name is entered in the table. If not, it must select an ‘ephemeral’ ‘port’ value by which to designate the peer sun_path name and enter the pair < port value , sun_path name > into the table. Such entries cannot be permanent otherwise the table will grow unboundedly in time, with entries surviving for ever, beyond the peer processes’ demise. We must associate a time_to_live field with a non-permanent table entry, and purge the entry if nothing is heard from the peer for that amount of time. Every time a peer process for which a non-permanent table entry exists communicates with ODR, its time_to_live value should be reinitialized. Note that when ODR writes to a peer, it is possible for the write to fail because the peer does not exist : it could be a ‘well-known’ service that is not running, or we could be in the interval between a process with a non-permanent table entry terminating and the expiration of its time_to_live value. Notes A proper implementation of ODR would probably require that RREQ and RREP messages be backed up by some kind of timeout and retransmission mechanism since the network transmission environment is not reliable. This would considerably complicate the implementation (because at any given moment, a node could have multiple RREQs that it has flooded out, but for which it has still not received RREPs; the situation is further complicated by the fact that not all intermediate nodes receiving and relaying RREQs necessarily lie on a path to the destination, and therefore should expect to receive RREPs), and, learning-wise, would not add much to the experience you should have gained from Assignment 2.
HlaingPhyoAung / SqlmapUsage: python sqlmap.py [options] Options: -h, --help Show basic help message and exit -hh Show advanced help message and exit --version Show program's version number and exit -v VERBOSE Verbosity level: 0-6 (default 1) Target: At least one of these options has to be provided to define the target(s) -d DIRECT Connection string for direct database connection -u URL, --url=URL Target URL (e.g. "http://www.site.com/vuln.php?id=1") -l LOGFILE Parse target(s) from Burp or WebScarab proxy log file -x SITEMAPURL Parse target(s) from remote sitemap(.xml) file -m BULKFILE Scan multiple targets given in a textual file -r REQUESTFILE Load HTTP request from a file -g GOOGLEDORK Process Google dork results as target URLs -c CONFIGFILE Load options from a configuration INI file Request: These options can be used to specify how to connect to the target URL --method=METHOD Force usage of given HTTP method (e.g. PUT) --data=DATA Data string to be sent through POST --param-del=PARA.. Character used for splitting parameter values --cookie=COOKIE HTTP Cookie header value --cookie-del=COO.. Character used for splitting cookie values --load-cookies=L.. File containing cookies in Netscape/wget format --drop-set-cookie Ignore Set-Cookie header from response --user-agent=AGENT HTTP User-Agent header value --random-agent Use randomly selected HTTP User-Agent header value --host=HOST HTTP Host header value --referer=REFERER HTTP Referer header value -H HEADER, --hea.. Extra header (e.g. "X-Forwarded-For: 127.0.0.1") --headers=HEADERS Extra headers (e.g. "Accept-Language: fr\nETag: 123") --auth-type=AUTH.. HTTP authentication type (Basic, Digest, NTLM or PKI) --auth-cred=AUTH.. HTTP authentication credentials (name:password) --auth-file=AUTH.. HTTP authentication PEM cert/private key file --ignore-401 Ignore HTTP Error 401 (Unauthorized) --proxy=PROXY Use a proxy to connect to the target URL --proxy-cred=PRO.. Proxy authentication credentials (name:password) --proxy-file=PRO.. Load proxy list from a file --ignore-proxy Ignore system default proxy settings --tor Use Tor anonymity network --tor-port=TORPORT Set Tor proxy port other than default --tor-type=TORTYPE Set Tor proxy type (HTTP (default), SOCKS4 or SOCKS5) --check-tor Check to see if Tor is used properly --delay=DELAY Delay in seconds between each HTTP request --timeout=TIMEOUT Seconds to wait before timeout connection (default 30) --retries=RETRIES Retries when the connection timeouts (default 3) --randomize=RPARAM Randomly change value for given parameter(s) --safe-url=SAFEURL URL address to visit frequently during testing --safe-post=SAFE.. POST data to send to a safe URL --safe-req=SAFER.. Load safe HTTP request from a file --safe-freq=SAFE.. Test requests between two visits to a given safe URL --skip-urlencode Skip URL encoding of payload data --csrf-token=CSR.. Parameter used to hold anti-CSRF token --csrf-url=CSRFURL URL address to visit to extract anti-CSRF token --force-ssl Force usage of SSL/HTTPS --hpp Use HTTP parameter pollution method --eval=EVALCODE Evaluate provided Python code before the request (e.g. "import hashlib;id2=hashlib.md5(id).hexdigest()") Optimization: These options can be used to optimize the performance of sqlmap -o Turn on all optimization switches --predict-output Predict common queries output --keep-alive Use persistent HTTP(s) connections --null-connection Retrieve page length without actual HTTP response body --threads=THREADS Max number of concurrent HTTP(s) requests (default 1) Injection: These options can be used to specify which parameters to test for, provide custom injection payloads and optional tampering scripts -p TESTPARAMETER Testable parameter(s) --skip=SKIP Skip testing for given parameter(s) --skip-static Skip testing parameters that not appear dynamic --dbms=DBMS Force back-end DBMS to this value --dbms-cred=DBMS.. DBMS authentication credentials (user:password) --os=OS Force back-end DBMS operating system to this value --invalid-bignum Use big numbers for invalidating values --invalid-logical Use logical operations for invalidating values --invalid-string Use random strings for invalidating values --no-cast Turn off payload casting mechanism --no-escape Turn off string escaping mechanism --prefix=PREFIX Injection payload prefix string --suffix=SUFFIX Injection payload suffix string --tamper=TAMPER Use given script(s) for tampering injection data Detection: These options can be used to customize the detection phase --level=LEVEL Level of tests to perform (1-5, default 1) --risk=RISK Risk of tests to perform (1-3, default 1) --string=STRING String to match when query is evaluated to True --not-string=NOT.. String to match when query is evaluated to False --regexp=REGEXP Regexp to match when query is evaluated to True --code=CODE HTTP code to match when query is evaluated to True --text-only Compare pages based only on the textual content --titles Compare pages based only on their titles Techniques: These options can be used to tweak testing of specific SQL injection techniques --technique=TECH SQL injection techniques to use (default "BEUSTQ") --time-sec=TIMESEC Seconds to delay the DBMS response (default 5) --union-cols=UCOLS Range of columns to test for UNION query SQL injection --union-char=UCHAR Character to use for bruteforcing number of columns --union-from=UFROM Table to use in FROM part of UNION query SQL injection --dns-domain=DNS.. Domain name used for DNS exfiltration attack --second-order=S.. Resulting page URL searched for second-order response Fingerprint: -f, --fingerprint Perform an extensive DBMS version fingerprint Enumeration: These options can be used to enumerate the back-end database management system information, structure and data contained in the tables. Moreover you can run your own SQL statements -a, --all Retrieve everything -b, --banner Retrieve DBMS banner --current-user Retrieve DBMS current user --current-db Retrieve DBMS current database --hostname Retrieve DBMS server hostname --is-dba Detect if the DBMS current user is DBA --users Enumerate DBMS users --passwords Enumerate DBMS users password hashes --privileges Enumerate DBMS users privileges --roles Enumerate DBMS users roles --dbs Enumerate DBMS databases --tables Enumerate DBMS database tables --columns Enumerate DBMS database table columns --schema Enumerate DBMS schema --count Retrieve number of entries for table(s) --dump Dump DBMS database table entries --dump-all Dump all DBMS databases tables entries --search Search column(s), table(s) and/or database name(s) --comments Retrieve DBMS comments -D DB DBMS database to enumerate -T TBL DBMS database table(s) to enumerate -C COL DBMS database table column(s) to enumerate -X EXCLUDECOL DBMS database table column(s) to not enumerate -U USER DBMS user to enumerate --exclude-sysdbs Exclude DBMS system databases when enumerating tables --pivot-column=P.. Pivot column name --where=DUMPWHERE Use WHERE condition while table dumping --start=LIMITSTART First query output entry to retrieve --stop=LIMITSTOP Last query output entry to retrieve --first=FIRSTCHAR First query output word character to retrieve --last=LASTCHAR Last query output word character to retrieve --sql-query=QUERY SQL statement to be executed --sql-shell Prompt for an interactive SQL shell --sql-file=SQLFILE Execute SQL statements from given file(s) Brute force: These options can be used to run brute force checks --common-tables Check existence of common tables --common-columns Check existence of common columns User-defined function injection: These options can be used to create custom user-defined functions --udf-inject Inject custom user-defined functions --shared-lib=SHLIB Local path of the shared library File system access: These options can be used to access the back-end database management system underlying file system --file-read=RFILE Read a file from the back-end DBMS file system --file-write=WFILE Write a local file on the back-end DBMS file system --file-dest=DFILE Back-end DBMS absolute filepath to write to Operating system access: These options can be used to access the back-end database management system underlying operating system --os-cmd=OSCMD Execute an operating system command --os-shell Prompt for an interactive operating system shell --os-pwn Prompt for an OOB shell, Meterpreter or VNC --os-smbrelay One click prompt for an OOB shell, Meterpreter or VNC --os-bof Stored procedure buffer overflow exploitation --priv-esc Database process user privilege escalation --msf-path=MSFPATH Local path where Metasploit Framework is installed --tmp-path=TMPPATH Remote absolute path of temporary files directory Windows registry access: These options can be used to access the back-end database management system Windows registry --reg-read Read a Windows registry key value --reg-add Write a Windows registry key value data --reg-del Delete a Windows registry key value --reg-key=REGKEY Windows registry key --reg-value=REGVAL Windows registry key value --reg-data=REGDATA Windows registry key value data --reg-type=REGTYPE Windows registry key value type General: These options can be used to set some general working parameters -s SESSIONFILE Load session from a stored (.sqlite) file -t TRAFFICFILE Log all HTTP traffic into a textual file --batch Never ask for user input, use the default behaviour --binary-fields=.. Result fields having binary values (e.g. "digest") --charset=CHARSET Force character encoding used for data retrieval --crawl=CRAWLDEPTH Crawl the website starting from the target URL --crawl-exclude=.. Regexp to exclude pages from crawling (e.g. "logout") --csv-del=CSVDEL Delimiting character used in CSV output (default ",") --dump-format=DU.. Format of dumped data (CSV (default), HTML or SQLITE) --eta Display for each output the estimated time of arrival --flush-session Flush session files for current target --forms Parse and test forms on target URL --fresh-queries Ignore query results stored in session file --hex Use DBMS hex function(s) for data retrieval --output-dir=OUT.. Custom output directory path --parse-errors Parse and display DBMS error messages from responses --save=SAVECONFIG Save options to a configuration INI file --scope=SCOPE Regexp to filter targets from provided proxy log --test-filter=TE.. Select tests by payloads and/or titles (e.g. ROW) --test-skip=TEST.. Skip tests by payloads and/or titles (e.g. BENCHMARK) --update Update sqlmap Miscellaneous: -z MNEMONICS Use short mnemonics (e.g. "flu,bat,ban,tec=EU") --alert=ALERT Run host OS command(s) when SQL injection is found --answers=ANSWERS Set question answers (e.g. "quit=N,follow=N") --beep Beep on question and/or when SQL injection is found --cleanup Clean up the DBMS from sqlmap specific UDF and tables --dependencies Check for missing (non-core) sqlmap dependencies --disable-coloring Disable console output coloring --gpage=GOOGLEPAGE Use Google dork results from specified page number --identify-waf Make a thorough testing for a WAF/IPS/IDS protection --skip-waf Skip heuristic detection of WAF/IPS/IDS protection --mobile Imitate smartphone through HTTP User-Agent header --offline Work in offline mode (only use session data) --page-rank Display page rank (PR) for Google dork results --purge-output Safely remove all content from output directory --smart Conduct thorough tests only if positive heuristic(s) --sqlmap-shell Prompt for an interactive sqlmap shell --wizard Simple wizard interface for beginner users
