357 lines
17 KiB
Python
Executable File
357 lines
17 KiB
Python
Executable File
import os
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import tarfile
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import shutil
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import glob
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import subprocess
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import hashlib
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import jinja2
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from urllib.request import urlopen
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def genImg(build, bdisk):
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arch = build['arch']
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chrootdir = build['chrootdir']
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archboot = build['archboot']
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basedir = build['basedir']
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tempdir = build['tempdir']
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hashes = {}
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hashes['sha256'] = {}
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hashes['md5'] = {}
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for a in arch:
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if a == 'i686':
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bitness = '32'
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elif a == 'x86_64':
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bitness = '64'
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# Create the squashfs image
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airoot = archboot + '/' + a + '/'
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squashimg = airoot + 'airootfs.sfs'
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os.makedirs(airoot, exist_ok = True)
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print("Generating squashed filesystem image for {0}. Please wait...".format(chrootdir + '/root.' + a))
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# TODO: use stdout and -progress if debugging is enabled. the below subprocess.call() just redirects to
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# /dev/null.
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DEVNULL = open(os.devnull, 'w')
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cmd = ['/usr/bin/mksquashfs',
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chrootdir + '/root.' + a,
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squashimg,
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'-no-progress',
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'-noappend',
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'-comp', 'xz']
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subprocess.call(cmd, stdout = DEVNULL, stderr = subprocess.STDOUT)
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# Generate the checksum files
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print("Now generating SHA256 and MD5 hash checksum files for {0}. Please wait...".format(squashimg))
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hashes['sha256'][a] = hashlib.sha256()
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hashes['md5'][a] = hashlib.md5()
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with open(squashimg, 'rb') as f:
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while True:
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stream = f.read(65536) # 64kb chunks
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if not stream:
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break
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# NOTE: these items are hashlib objects, NOT strings!
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hashes['sha256'][a].update(stream)
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hashes['md5'][a].update(stream)
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with open(airoot + 'airootfs.sha256', 'w+') as f:
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f.write("{0} airootfs.sfs".format(hashes['sha256'][a].hexdigest()))
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with open(airoot + 'airootfs.md5', 'w+') as f:
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f.write("{0} airootfs.sfs".format(hashes['md5'][a].hexdigest()))
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os.makedirs(tempdir + '/boot', exist_ok = True)
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if not os.path.isfile('{0}/extra/{1}.png'.format(basedir, bdisk['uxname'])):
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shutil.copy2(basedir + '/extra/bdisk.png', '{0}/{1}.png'.format(tempdir, bdisk['uxname']))
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else:
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shutil.copy2(basedir + '/extra/{0}.png'.format(bdisk['uxname']), '{0}/{1}.png'.format(tempdir, bdisk['uxname']))
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# We use a dict here so we can use the right filenames...
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# I might change how I handle this in the future.
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bootfiles = {}
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bootfiles['kernel'] = ['vmlinuz-linux-' + bdisk['name'], '{0}.{1}.kern'.format(bdisk['uxname'], bitness)]
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bootfiles['initrd'] = ['initramfs-linux-{0}.img'.format(bdisk['name']), '{0}.{1}.img'.format(bdisk['uxname'], bitness)]
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for x in ('kernel', 'initrd'):
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shutil.copy2('{0}/root.{1}/boot/{2}'.format(chrootdir, a, bootfiles[x][0]), '{0}/boot/{1}'.format(tempdir, bootfiles[x][1]))
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def genUEFI(build, bdisk):
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arch = build['arch']
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# 32-bit EFI implementations are nigh nonexistant.
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# We don't really need to worry about them.
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# Plus there's always multiarch.
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# I can probably do this better with a dict... TODO.
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if 'x86_64' in arch:
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tempdir = build['tempdir']
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basedir = build['basedir']
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chrootdir = build['chrootdir']
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mountpt = build['mountpt']
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templates_dir = build['basedir'] + '/extra/templates'
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efidir = '{0}/EFI/{1}'.format(tempdir, bdisk['name'])
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os.makedirs(efidir, exist_ok = True)
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efiboot_img = efidir + '/efiboot.img'
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os.makedirs(tempdir + '/EFI/boot', exist_ok = True)
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## Download the EFI shells if we don't have them.
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# For UEFI 2.3+ (http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=UEFI_Shell)
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if not os.path.isfile(tempdir + '/EFI/shellx64_v2.efi'):
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shell2_path = tempdir + '/EFI/shellx64_v2.efi'
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print("You are missing {0}. We'll download it for you.".format(shell2_path))
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shell2_url = 'https://raw.githubusercontent.com/tianocore/edk2/master/ShellBinPkg/UefiShell/X64/Shell.efi'
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shell2_fetch = urlopen(shell2_url)
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with open(shell2_path, 'wb+') as dl:
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dl.write(shell2_fetch.read())
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shell2_fetch.close()
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# Shell for older versions (http://sourceforge.net/apps/mediawiki/tianocore/index.php?title=Efi-shell)
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# TODO: is there an Arch package for this? can we just install that in the chroot and copy the shell binaries?
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if not os.path.isfile(tempdir + '/EFI/shellx64_v1.efi'):
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shell1_path = tempdir + '/EFI/shellx64_v1.efi'
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print("You are missing {0}. We'll download it for you.".format(shell1_path))
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shell1_url = 'https://raw.githubusercontent.com/tianocore/edk2/master/EdkShellBinPkg/FullShell/X64/Shell_Full.efi'
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shell1_fetch = urlopen(shell1_url)
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with open(shell1_path, 'wb+') as dl:
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dl.write(shell1_fetch.read())
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shell1_fetch.close()
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print("Now configuring UEFI bootloading...")
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## But wait! That's not all! We need more binaries.
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# http://blog.hansenpartnership.com/linux-foundation-secure-boot-system-released/
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shim_url = 'http://blog.hansenpartnership.com/wp-uploads/2013/'
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for f in ('PreLoader.efi', 'HashTool.efi'):
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if f == 'PreLoader.efi':
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fname = 'bootx64.efi'
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else:
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fname = f
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if not os.path.isfile(tempdir + '/EFI/boot/' + fname):
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url = shim_url + f
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url_fetch = urlopen(url)
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with open(tempdir + '/EFI/boot/' + fname, 'wb+') as dl:
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dl.write(url_fetch.read())
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url_fetch.close()
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# And we also need the systemd efi bootloader.
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if os.path.isfile(tempdir + '/EFI/boot/loader.efi'):
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os.remove(tempdir + '/EFI/boot/loader.efi')
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shutil.copy2(chrootdir + '/root.x86_64/usr/lib/systemd/boot/efi/systemd-bootx64.efi', tempdir + '/EFI/boot/loader.efi')
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# And the accompanying configs for the systemd efi bootloader, too.
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tpl_loader = jinja2.FileSystemLoader(templates_dir)
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env = jinja2.Environment(loader = tpl_loader)
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os.makedirs(tempdir + '/loader/entries', exist_ok = True)
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for t in ('loader', 'ram', 'base', 'uefi2', 'uefi1'):
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if t == 'base':
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fname = bdisk['uxname'] + '.conf'
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elif t not in ('uefi1', 'uefi2'):
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fname = t + '.conf'
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else:
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fname = bdisk['uxname'] + '_' + t + '.conf'
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if t == 'loader':
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tplpath = tempdir + '/loader/'
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fname = 'loader.conf' # we change the var from above because it's an oddball.
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else:
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tplpath = tempdir + '/loader/entries/'
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tpl = env.get_template('EFI/' + t + '.conf.j2')
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tpl_out = tpl.render(build = build, bdisk = bdisk)
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with open(tplpath + fname, "w+") as f:
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f.write(tpl_out)
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# And we need to get filesizes (in bytes) for everything we need to include in the ESP.
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# This is more important than it looks.
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#sizetotal = 33553920 # The spec'd EFI binary size (32MB). It's okay to go over this though (and we do)
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# because xorriso sees it as a filesystem image and adjusts the ISO automagically.
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sizetotal = 786432 # we start with 768KB and add to it for wiggle room
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sizefiles = ['/boot/' + bdisk['uxname'] + '.64.img',
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'/boot/' + bdisk['uxname'] + '.64.kern',
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'/EFI/boot/bootx64.efi',
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'/EFI/boot/loader.efi',
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'/EFI/boot/HashTool.efi',
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'/EFI/shellx64_v1.efi',
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'/EFI/shellx64_v2.efi']
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for i in sizefiles:
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sizetotal += os.path.getsize(tempdir + i)
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# Loader configs
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for (path, dirs, files) in os.walk(tempdir + '/loader/'):
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for file in files:
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fname = os.path.join(path, file)
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sizetotal += os.path.getsize(fname)
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# And now we create the file...
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print("Now creating a {0} bytes EFI ESP image at {1}. Please wait...".format(sizetotal, efiboot_img))
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if os.path.isfile(efiboot_img):
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os.remove(efiboot_img)
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with open(efiboot_img, 'wb+') as f:
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f.truncate(sizetotal)
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DEVNULL = open(os.devnull, 'w')
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cmd = ['/sbin/mkfs.vfat', '-F', '32', '-n', bdisk['name'] + '_EFI', efiboot_img]
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subprocess.call(cmd, stdout = DEVNULL, stderr = subprocess.STDOUT)
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cmd = ['/bin/mount', efiboot_img, build['mountpt']]
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subprocess.call(cmd)
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os.makedirs('{0}/EFI/{1}'.format(build['mountpt'], bdisk['name']))
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os.makedirs(build['mountpt'] + '/EFI/boot')
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os.makedirs(build['mountpt'] + '/loader/entries')
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# Ready for some deja vu? This is because it uses an embedded version as well for hybrid ISO.
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# I think.
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# TODO: just move this to a function instead, with "efi" as a param and change
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# the templates to use "if efi == 'yes'" instead.
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# function should set the "installation" path for the conf as well based on the value of efi
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# parameter.
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env = jinja2.Environment(loader = tpl_loader)
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for t in ('loader', 'ram', 'base', 'uefi2', 'uefi1'):
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if t == 'base':
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fname = bdisk['uxname'] + '.conf'
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elif t in ('uefi1', 'uefi2'):
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fname = t + '.conf'
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else:
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fname = bdisk['uxname'] + '_' + t + '.conf'
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if t == 'loader':
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tplpath = build['mountpt'] + '/loader/'
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fname = 'loader.conf' # we change the var from above because it's an oddball.
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else:
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tplpath = build['mountpt'] + '/loader/entries/'
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tpl = env.get_template('EFI/' + t + '.conf.j2')
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tpl_out = tpl.render(build = build, bdisk = bdisk, efi = 'yes')
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with open(tplpath + fname, "w+") as f:
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f.write(tpl_out)
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for x in ('bootx64.efi', 'HashTool.efi', 'loader.efi'):
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y = tempdir + '/EFI/boot/' + x
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z = mountpt + '/EFI/boot/' + x
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if os.path.isfile(z):
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os.remove(z)
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shutil.copy(y, z)
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for x in ('shellx64_v1.efi', 'shellx64_v2.efi'):
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y = tempdir + '/EFI/' + x
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z = mountpt + '/EFI/' + x
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if os.path.isfile(z):
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os.remove(z)
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shutil.copy(y, z)
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shutil.copy2('{0}/root.{1}/boot/vmlinuz-linux-{2}'.format(chrootdir, 'x86_64', bdisk['name']),
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'{0}/EFI/{1}/{2}.efi'.format(mountpt, bdisk['name'], bdisk['uxname']))
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shutil.copy2('{0}/root.{1}/boot/initramfs-linux-{2}.img'.format(chrootdir, 'x86_64', bdisk['name']),
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'{0}/EFI/{1}/{2}.img'.format(mountpt, bdisk['name'], bdisk['uxname']))
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# TODO: support both Arch's as EFI bootable instead? Maybe? requires more research. very rare.
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#shutil.copy2('{0}/root.{1}/boot/vmlinuz-linux-{2}'.format(chrootdir, a, bdisk['name']),
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# '{0}/EFI/{1}/{2}.{3}.efi'.format(mountpt, bdisk['name'], bdisk['uxname'], bitness))
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#shutil.copy2('{0}/root.{1}/boot/initramfs-linux-{2}.img'.format(chrootdir, a, bdisk['uxname']),
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# '{0}/EFI/{1}/{2}.{3}.img'.format(mountpt, bdisk['name'], bdisk['uxname'], bitness))
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cmd = ['/bin/umount', mountpt]
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subprocess.call(cmd)
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return(efiboot_img)
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def genISO(conf):
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build = conf['build']
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bdisk = conf['bdisk']
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archboot = build['archboot']
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tempdir = build['tempdir']
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templates_dir = build['basedir'] + '/extra/templates'
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arch = build['arch']
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builddir = tempdir + '/' + bdisk['name']
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extradir = build['basedir'] + '/extra/'
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# arch[0] is safe to use, even if multiarch, because the only cases when it'd be ambiguous
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# is when x86_64 is specifically set to [0]. See host.py's parseConfig().
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# TODO: can we use syslinux for EFI too instead of prebootloader?
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syslinuxdir = build['chrootdir'] + '/root.' + arch[0] + '/usr/lib/syslinux/bios/'
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sysl_tmp = tempdir + '/isolinux/'
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ver = bdisk['ver']
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isofile = '{0}-{1}.iso'.format(bdisk['uxname'], bdisk['ver'])
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isopath = build['isodir'] + '/' + isofile
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arch = build['arch']
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# In case we're building a single-arch ISO...
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if len(arch) == 1:
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isolinux_cfg = '/BIOS/isolinux.cfg.arch.j2'
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if arch[0] == 'i686':
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bitness = '32'
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efi = False
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elif arch[0] == 'x86_64':
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bitness = '64'
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efi = True
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else:
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isolinux_cfg = '/BIOS/isolinux.cfg.multi.j2'
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bitness = False
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efi = True
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if os.path.isfile(isopath):
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os.remove(isopath)
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if archboot != tempdir + '/' + bdisk['name']: # best to use static concat here...
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if os.path.isdir(builddir):
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shutil.rmtree(builddir, ignore_errors = True)
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shutil.copytree(archboot, builddir)
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if build['ipxe']:
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ipxe = conf['ipxe']
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if ipxe['iso']:
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minifile = '{0}-{1}-mini.iso'.format(bdisk['uxname'], bdisk['ver'])
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minipath = build['isodir'] + '/' + minifile
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if ipxe['usb']:
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usbfile = '{0}-{1}-mini.usb.img'.format(bdisk['uxname'], bdisk['ver'])
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minipath = build['isodir'] + '/' + usbfile
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# Copy isolinux files
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print("Now staging some files for ISO preparation. Please wait...")
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isolinux_files = ['isolinux.bin',
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'vesamenu.c32',
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'linux.c32',
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'reboot.c32']
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# TODO: implement debugging mode in bdisk
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#if debug:
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# isolinux_files[0] = 'isolinux-debug.bin'
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os.makedirs(sysl_tmp, exist_ok = True)
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for f in isolinux_files:
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if os.path.isfile(sysl_tmp + f):
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os.remove(sysl_tmp + f)
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shutil.copy2(syslinuxdir + f, sysl_tmp + f)
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ifisolinux_files = ['ldlinux.c32',
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'libcom32.c32',
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'libutil.c32',
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'ifcpu64.c32']
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for f in ifisolinux_files:
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if os.path.isfile(sysl_tmp + f):
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os.remove(sysl_tmp + f)
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shutil.copy2(syslinuxdir + f, sysl_tmp + f)
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tpl_loader = jinja2.FileSystemLoader(templates_dir)
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env = jinja2.Environment(loader = tpl_loader)
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tpl = env.get_template(isolinux_cfg)
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tpl_out = tpl.render(build = build, bdisk = bdisk)
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with open(sysl_tmp + '/isolinux.cfg', "w+") as f:
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f.write(tpl_out)
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# And we need to build the ISO!
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# TODO: only include UEFI support if we actually built it!
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print("Now generating the full ISO at {0}. Please wait.".format(isopath))
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if efi:
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cmd = ['/usr/bin/xorriso',
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'-as', 'mkisofs',
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'-iso-level', '3',
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'-full-iso9660-filenames',
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'-volid', bdisk['name'],
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'-appid', bdisk['desc'],
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'-publisher', bdisk['dev'],
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'-preparer', 'prepared by ' + bdisk['dev'],
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'-eltorito-boot', 'isolinux/isolinux.bin',
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'-eltorito-catalog', 'isolinux/boot.cat',
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'-no-emul-boot',
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'-boot-load-size', '4',
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'-boot-info-table',
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'-isohybrid-mbr', syslinuxdir + 'isohdpfx.bin',
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'-eltorito-alt-boot',
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'-e', 'EFI/' + bdisk['name'] + '/efiboot.img',
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'-no-emul-boot',
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'-isohybrid-gpt-basdat',
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'-output', isopath,
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tempdir]
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else:
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# UNTESTED. TODO.
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# I think i want to also get rid of: -boot-load-size 4,
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# -boot-info-table, ... possiblyyy -isohybrid-gpt-basedat...
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cmd = ['/usr/bin/xorriso',
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'-as', 'mkisofs',
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'-iso-level', '3',
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'-full-iso9660-filenames',
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'-volid', bdisk['name'],
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'-appid', bdisk['desc'],
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'-publisher', bdisk['dev'],
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'-preparer', 'prepared by ' + bdisk['dev'],
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'-eltorito-boot', 'isolinux/isolinux.bin',
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'-eltorito-catalog', 'isolinux/boot.cat',
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'-no-emul-boot',
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'-boot-load-size', '4',
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'-boot-info-table',
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'-isohybrid-mbr', syslinuxdir + 'isohdpfx.bin',
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'-no-emul-boot',
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'-isohybrid-gpt-basdat',
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'-output', isopath,
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tempdir]
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DEVNULL = open(os.devnull, 'w')
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subprocess.call(cmd, stdout = DEVNULL, stderr = subprocess.STDOUT)
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#proc = subprocess.Popen(cmd, stdout = subprocess.PIPE, bufsize = 1)
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#for line in iter(proc.stdout.readline, b''):
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#for line in iter(proc.stdout.readline, ''):
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# print(line)
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#p.stdout.close()
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#p.wait()
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def cleanUp():
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# TODO: clear out all of tempdir?
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pass
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