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161 lines
4.4 KiB
Groff
161 lines
4.4 KiB
Groff
.Dd Feb 3, 2017
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.Dt RARUN2 1
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.Sh NAME
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.Nm rarun2
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.Nd radare2 utility to run programs in exotic environments
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.Sh SYNOPSIS
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.Nm rarun2
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.Op [directives]
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.Op [script.rr2]
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.Op [--] [program] [args]
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.Sh DESCRIPTION
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This program is used as a launcher for running programs with different environment, arguments, permissions, directories and overridden default filedescriptors.
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.Pp
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rarun2 -t will show the terminal name and wait for a connection from another process. try rarun2 stdio=<ttypath> program=/bin/sh
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.Pp
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The program just accepts a single argument which is the filename of the configuration file to run the program.
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.Pp
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It is useful when you have to run a program using long arguments or pass long data to stdin or things like that usually required for exploiting crackmes :)
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.Sh DIRECTIVES
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.Pp
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The rr2 (rarun2) configuration file accepts the following directives, described as key=value entries and comments defined as lines starting with '#'.
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.Bl -tag -width Fl
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.It Ar arg[0-3]
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set value for argument N passed to the program
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.It Ar aslr
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enable or disable ASLR
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.It Ar bits
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set 32 or 64 bit (if the architecture supports it)
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.It Ar chdir
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change directory before executing the program
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.It Ar chroot
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run the program in chroot. requires some previous setup
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.It Ar clearenv
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unset the whole environment
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.It Ar core
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set no limit the core file size
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.It Ar connect
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connect stdin/stdout/stderr to a socket
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.It Ar pty
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use a pty for connection over socket (with connect/listen)
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.It Ar envfile
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set a file with lines like `var=value` to be used as env
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.It Ar fork
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used with the listen option, allow to spawn a different process for each connection. Ignored when debugging.
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.It Ar input
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set string to be passed to the program via stdin
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.It Ar libpath
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override path where the dynamic loader will look for shared libraries
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.It Ar listen
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bound stdin/stdout/stderr to a listening socket
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.It Ar maxstack
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set the maximum size for the stack
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.It Ar maxproc
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set the maximum number of processes
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.It Ar maxfd
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set the maximum number of file descriptors
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.It Ar nice
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set the niceness level of the process
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.It Ar preload
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preload a library (not supported on Windows, only linux,osx,bsd)
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.It Ar program
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path to program to be executed
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.It Ar execve
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use execve instead of posix_spawn (osx tricks)
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.It Ar r2preload
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preload with libr2, kill -USR1 to get an r2 shell or -USR2 to spawn a webserver in a thread
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.It Ar r2preweb
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run the webserver in a thread just at starting the r2preload
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.It Ar setenv
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set value for given environment variable
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.It Ar setegid
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set effective process group id
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.It Ar seteuid
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set effective process uid
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.It Ar setgid
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set process group id
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.It Ar setuid
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set process uid
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.It Ar sleep
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sleep for the given amount of seconds
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.It Ar stdin
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select file to read data from stdin
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.It Ar stdout
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select file to replace stdout file descriptor
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.It Ar system
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execute the given command
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.It Ar timeout
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set a timeout
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.It Ar timeoutsig
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signal to use when killing the child because the timeout happens
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.It Ar unsetenv
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unset one environment variable
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.El
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.Sh VALUE PREFIXES
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Every value in this configuration file can contain a special
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.Pp
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.Bl -tag -width Fl
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.It Ar @filename
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Slurp contents of file and put them inside the key
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.It Ar "text"
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Escape characters useful for hex chars
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.It Ar 'string'
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Escape characters useful for hex chars
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.It Ar !cmd
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Run command to store the output in the variable
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.It Ar :102030
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Parse hexpair string and store it in the variable
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.It Ar :!102030
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Parse hexpair string from output of command and store it in the variable
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.El
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.Sh EXAMPLES
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Sample rarun2 script
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.Pp
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$ cat foo.rr2
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#!/usr/bin/rarun2
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program=./pp400
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arg0=10
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stdin=foo.txt
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chdir=/tmp
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clearenv=true
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setenv=EGG=eggsy
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setenv=NOFUN=nogames
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unsetenv=NOFUN
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# EGG will be the only env variable
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#chroot=.
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./foo.rr2
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.Pp
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Connecting a program to a socket
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.Pp
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$ nc \-l 9999
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$ rarun2 program=/bin/ls connect=localhost:9999
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.Pp
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Debugging a program redirecting io to another terminal
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.Pp
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## open a new terminal and type 'tty' to get
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$ tty ; clear ; sleep 999999
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/dev/ttyS010
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## in another terminal run r2
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$ r2 \-e dbg.profile=foo.rr2 -d ls
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## or you can use -R option
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$ r2 \-R foo.rr2 -d ls
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$ cat foo.rr2
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#!/usr/bin/rarun2
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stdio=/dev/ttys010
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.Pp
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You can also use the -- flag to specify program and arguments in a more natural way:
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.Pp
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$ rarun2 timeout=2 -- sleep 4
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.Sh SEE ALSO
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.Pp
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.Xr radare2(1) ,
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.Xr rahash2(1) ,
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.Xr rafind2(1) ,
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.Xr rabin2(1) ,
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.Xr radiff2(1) ,
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.Xr ragg2(1) ,
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.Xr rasm2(1) ,
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.Sh AUTHORS
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.Pp
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Written by pancake <pancake@nopcode.org>
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