merdian/Meridian/meridianTV/electra/the fun part/bootstrap.c

//
//  bootstrap.c
//  electra
//
//  Created by Jamie Bishop on 11/02/2018.
//  Copyright © 2018 Electra Team. All rights reserved.
//

#include "bootstrap.h"
#include "file_utils.h"
#include "fun_objc.h"
#include "amfi_utils.h"
#include "utils.h"
#include <sys/stat.h>
#include <sys/wait.h>
#include <sys/fcntl.h>
#include <unistd.h>
#include <spawn.h>

#define tar "/electra/tar"

pid_t pd;

void copy_tar() {
    extractGz("tar", "/electra/tar");
    chmod(tar, 0755);
    inject_trusts(1, (const char **)&(const char*[]){tar});
}

void copy_basebinaries() {
    mkdir("/electra", 0755);
    
    copy_tar();
    
    // Remove old base binaries
    unlink("/electra/inject_amfid");
    unlink("/electra/inject_launchd");
    unlink("/electra/launchd_payload.dylib");
    unlink("/electra/xpcproxy_payload.dylib");
    
    unlink("/electra/inject_ctriticald");
    unlink("/electra/pspawn_payload.dylib");
    
    unlink("/electra/amfid_payload.dylib");
    unlink("/electra/launchjailbreak");
    unlink("/electra/jailbreakd");
    
    extractGz("rm","/electra/rm");
    chmod("/electra/rm", 0755);
    
    posix_spawn(&pd, tar, NULL, NULL, (char **)&(const char*[]){ tar, "-xpvf", progname("basebinaries.tar"), "-C", "/electra", NULL }, NULL);
    waitpid(pd, NULL, 0);
    
    writeMessage("\n[bootstrapper] copied the required binaries into the right places\n");
    
    inject_trusts(4, (const char **)&(const char*[]){
        "/electra/inject_criticald",
        "/electra/amfid_payload.dylib",
        "/electra/pspawn_payload.dylib",
        "/electra/libjailbreak.dylib"
    });
}

void extract_bootstrap() {
    unlink("/bin/launchctl");
   /*
    unlink("/usr/lib/TweakInject.dylib");
    unlink("/usr/lib/libsubstitute.dylib");
    unlink("/usr/lib/libsubstrate.dylib");
    unlink("/usr/lib/libsubstitute.0.dylib");
    unlink("/usr/lib/librespring.dylib");
    */
    extractGz("launchctl", "/electra/launchctl");
    cp_electra("/bin/launchctl", "/electra/launchctl");
    chmod("/bin/launchctl", 0755);
    unlink("/electra/launchctl");
    
    int bootstrapped = open("/.bootstrapped_electra", O_RDONLY);
    if (bootstrapped != -1) {
        close(bootstrapped);
        return post_bootstrap(false);
    }
    close(bootstrapped);
    
    installingNitoTV();
    
    extractGz("bootstrap.tar", "/electra/bootstrap.tar");
    
    posix_spawn(&pd, tar, NULL, NULL, (char **)&(const char*[]){ tar, "--preserve-permissions", "-xvkf", "/electra/bootstrap.tar", "-C", "/", NULL }, NULL);
    waitpid(pd, NULL, 0);
    
    unlink("/electra/bootstrap.tar");
    
    //unlink("/usr/libexec/cydia/move.sh");
    
    FILE *file = fopen("/etc/hosts","w"); /* write file (create a file if it does not exist and if it does treat as empty.*/
    fprintf(file,"%s","##\n"); //writes
    fprintf(file,"%s","# Host Database\n"); //writes
    fprintf(file,"%s","# localhost is used to configure the loopback interface\n"); //writes
    fprintf(file,"%s","# when the system is booting.  Do not change this entry.\n"); //writes
    fprintf(file,"%s","##\n"); //writes
    fprintf(file,"%s","127.0.0.1    localhost\n"); //writes
    fprintf(file,"%s","255.255.255.255 broadcasthost\n"); //writes
    fprintf(file,"%s","::1      localhost\n"); //writes
    fclose(file); /*done!*/
    
    //dont need
    /*
    file = fopen("/etc/apt/sources.list.d/electra-shim.list","w");
    fprintf(file,"%s","deb https://electrarepo64.coolstar.org/substrate-shim/ ./\n"); //writes
    fprintf(file,"%s","\n"); //writes
    fclose(file);
    
    cp_electra("/usr/libexec/cydia/move.sh", progname("move.sh"));
    */
    
    int rv = open("/.bootstrapped_electra", O_RDWR|O_CREAT);
    close(rv);
    rv = open("/.cydia_no_stash",O_RDWR|O_CREAT);
    close(rv);
    rv = open("/var/mobile/Library/Preferences/.kickstart",O_RDWR|O_CREAT);
    close(rv);
    
    //printf("[bootstrapper] extracted bootstrap to / \n");
    writeMessage("[bootstrapper] extracted bootstrap to / \n");
    post_bootstrap(true);
}

void post_bootstrap(const bool runUICache) {
    pid_t pd;
    //cant run uicache yet on iOS because we dont have code injection yet.
    if (runUICache){
        //posix_spawn(&pd, "/usr/bin/uicache", NULL, NULL, (char **)&(const char*[]){ "uicache", NULL }, NULL);
        //waitpid(pd, NULL, 0);
 
    }
    
    unlink(tar);
    
    //dont need the electra list
    /*
    FILE *file;
    file = fopen("/etc/apt/sources.list.d/electra.list","w");
    fprintf(file,"%s","deb https://electrarepo64.coolstar.org/ ./\n"); //writes
    fprintf(file,"%s","\n"); //writes
    fclose(file);
    */
    
    unlink("/usr/lib/libjailbreak.dylib");
    cp_electra("/usr/lib/libjailbreak.dylib","/electra/libjailbreak.dylib");
    
    inject_trusts(1, (const char **)&(const char*[]){"/bin/launchctl"});
    
    //we already have an available file
    
    /*
    int rv = open("/var/lib/dpkg/available", O_RDWR|O_CREAT);
    close(rv);
    */
   
    //nitoTV script specific, this is different in other versions
    posix_spawn(&pd, "/bin/bash", NULL, NULL, (char **)&(const char*[]){ "bash", "/usr/libexec/nito/firmware.sh", NULL }, NULL);
    waitpid(pd, NULL, 0);
    
    /*
     
     Next three can remain the same, i still have dropbear AND openssh in the bootstrap for the beta / testing phase in case one of them fails to fire. no way your arent SSHing in!!
     
     opensshd is on port 22 and db is on 2223 on localhost, so will need to do usb-ssh method (i think)
     
     */
    posix_spawn(&pd, "/bin/bash", NULL, NULL, (char **)&(const char*[]){ "bash", "/Library/dpkg/info/openssh.postinst", NULL }, NULL);
    waitpid(pd, NULL, 0);
    
    posix_spawn(&pd, "/bin/launchctl", NULL, NULL, (char **)&(const char*[]){ "launchctl", "load", "/Library/LaunchDaemons/com.openssh.sshd.plist", NULL }, NULL);
    waitpid(pd, NULL, 0);
    
    chmod("/Library/LaunchDaemons/dropbear.plist", 0600);
    chown("/Library/LaunchDaemons/dropbear.plist", 0, 0);
    chmod("/etc/dropbear", 0700);
    //chmod 700 /etc/dropbear
    posix_spawn(&pd, "/bin/launchctl", NULL, NULL, (char **)&(const char*[]){ "launchctl", "load", "/Library/LaunchDaemons/dropbear.plist", NULL }, NULL);
    waitpid(pd, NULL, 0);
    
    //we wont have his lists... on the meridian side in 'needed' to install nitoTV like this, but dont need to here
    //maybe the dpkg after step is no longer necessary.
    
    run("rm /var/lib/apt/lists/apt.saurik.com*");
    blockSaurikRepo();
   
    char *myenviron[] = {
        "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:/usr/games",
        "PS1=\\h:\\w \\u\\$ ",
        NULL
    };
    posix_spawn(&pd, "/usr/bin/dpkg", NULL, NULL, (char **)&(const char*[]){ "dpkg", "-i", "--refuse-downgrade", progname("safetynet.deb"), NULL }, (char **)&myenviron);
    waitpid(pd, NULL, 0);
    
    
    printf("[bootstrapper] device has been bootstrapped!\n");
    
    if (runUICache){
        nitoTVDone();
    }
}