ChangeSet 1.1327.2.13, 2005/04/28 13:27:47+01:00, mjw@xxxxxxxxxxxxxxxxxxx
Merge Jeremy's pygrub bootloader patch.
Signed-off-by: Jeremy Katz <katzj@xxxxxxxxxx>
Signed-off-by: Mike Wray <mike.wray@xxxxxx>
Makefile | 1
pygrub/Makefile | 18 ++
pygrub/setup.py | 25 ++
pygrub/src/GrubConf.py | 229 ++++++++++++++++++++++++++
pygrub/src/fsys/__init__.py | 61 ++++++
pygrub/src/fsys/ext2/__init__.py | 38 ++++
pygrub/src/fsys/ext2/ext2module.c | 332 ++++++++++++++++++++++++++++++++++++++
pygrub/src/fsys/ext2/test.py | 15 +
pygrub/src/pygrub | 270 ++++++++++++++++++++++++++++++
python/xen/xend/XendBootloader.py | 94 ++++++++++
python/xen/xend/XendDomainInfo.py | 40 ++++
python/xen/xend/server/blkif.py | 9 +
python/xen/xm/create.py | 61 +++++-
xfrd/xfrd.c | 4
14 files changed, 1180 insertions(+), 17 deletions(-)
diff -Nru a/tools/Makefile b/tools/Makefile
--- a/tools/Makefile 2005-05-13 16:04:53 -04:00
+++ b/tools/Makefile 2005-05-13 16:04:53 -04:00
@@ -11,6 +11,7 @@
SUBDIRS += xfrd
SUBDIRS += xcs
SUBDIRS += ioemu
+SUBDIRS += pygrub
.PHONY: all install clean check check_clean
diff -Nru a/tools/pygrub/Makefile b/tools/pygrub/Makefile
--- /dev/null Wed Dec 31 16:00:00 196900
+++ b/tools/pygrub/Makefile 2005-05-13 16:04:53 -04:00
@@ -0,0 +1,18 @@
+
+XEN_ROOT = ../..
+include $(XEN_ROOT)/tools/Rules.mk
+
+all: build
+build:
+ CFLAGS="$(CFLAGS)" python setup.py build
+
+ifndef XEN_PYTHON_NATIVE_INSTALL
+install: all
+ CFLAGS="$(CFLAGS)" python setup.py install --home="$(DESTDIR)/usr"
+else
+install: all
+ CFLAGS="$(CFLAGS)" python setup.py install --root="$(DESTDIR)"
+endif
+
+clean:
+ rm -rf build *.pyc *.pyo *.o *.a *~
diff -Nru a/tools/pygrub/setup.py b/tools/pygrub/setup.py
--- /dev/null Wed Dec 31 16:00:00 196900
+++ b/tools/pygrub/setup.py 2005-05-13 16:04:53 -04:00
@@ -0,0 +1,25 @@
+from distutils.core import setup, Extension
+import os
+
+extra_compile_args = [ "-fno-strict-aliasing", "-Wall", "-Werror" ]
+
+# in a perfect world, we'd figure out the fsys modules dynamically
+ext2 = Extension("grub.fsys.ext2._pyext2",
+ extra_compile_args = extra_compile_args,
+ libraries = ["ext2fs"],
+ sources = ["src/fsys/ext2/ext2module.c"])
+
+setup(name='pygrub',
+ version='0.1',
+ description='Boot loader that looks a lot like grub for Xen',
+ author='Jeremy Katz',
+ author_email='katzj@xxxxxxxxxx',
+ license='GPL',
+ package_dir={'grub': 'src'},
+ scripts = ["src/pygrub"],
+ packages=['grub',
+ 'grub.fsys',
+ 'grub.fsys.ext2'],
+ ext_modules = [ext2]
+ )
+
diff -Nru a/tools/pygrub/src/GrubConf.py b/tools/pygrub/src/GrubConf.py
--- /dev/null Wed Dec 31 16:00:00 196900
+++ b/tools/pygrub/src/GrubConf.py 2005-05-13 16:04:53 -04:00
@@ -0,0 +1,229 @@
+#
+# GrubConf.py - Simple grub.conf parsing
+#
+# Copyright 2005 Red Hat, Inc.
+# Jeremy Katz <katzj@xxxxxxxxxx>
+#
+# This software may be freely redistributed under the terms of the GNU
+# general public license.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+
+import os, sys
+import logging
+
+def grub_split(s, maxsplit = -1):
+ """Split a grub option screen separated with either '=' or whitespace."""
+ eq = s.find('=')
+ if eq == -1:
+ return s.split(None, maxsplit)
+
+ # see which of a space or tab is first
+ sp = s.find(' ')
+ tab = s.find('\t')
+ if (tab != -1 and tab < sp) or (tab != -1 and sp == -1):
+ sp = tab
+
+ if eq != -1 and eq < sp or (eq != -1 and sp == -1):
+ return s.split('=', maxsplit)
+ else:
+ return s.split(None, maxsplit)
+
+def get_path(s):
+ """Returns a tuple of (GrubDiskPart, path) corresponding to string."""
+ if not s.startswith('('):
+ return (None, s)
+ idx = s.find(')')
+ if idx == -1:
+ raise ValueError, "Unable to find matching ')'"
+ d = s[:idx]
+ return (GrubDiskPart(d), s[idx + 1:])
+
+class GrubDiskPart(object):
+ def __init__(self, str):
+ if str.find(',') != -1:
+ (self.disk, self.part) = str.split(",", 2)
+ else:
+ self.disk = str
+ self.part = None
+
+ def __repr__(self):
+ if self.part is not None:
+ return "d%dp%d" %(self.disk, self.part)
+ else:
+ return "d%d" %(self,disk,)
+
+ def get_disk(self):
+ return self._disk
+ def set_disk(self, val):
+ val = val.replace("(", "").replace(")", "")
+ self._disk = int(val[2:])
+ disk = property(get_disk, set_disk)
+
+ def get_part(self):
+ return self._part
+ def set_part(self, val):
+ if val is None:
+ self._part = val
+ return
+ val = val.replace("(", "").replace(")", "")
+ self._part = int(val)
+ part = property(get_part, set_part)
+
+class GrubImage(object):
+ def __init__(self, lines):
+ self._root = self._initrd = self._kernel = self._args = None
+ for l in lines:
+ (com, arg) = grub_split(l, 1)
+
+ if self.commands.has_key(com):
+ if self.commands[com] is not None:
+ exec("%s = r\"%s\"" %(self.commands[com], arg.strip()))
+ else:
+ logging.info("Ignored image directive %s" %(com,))
+ else:
+ logging.warning("Unknown image directive %s" %(com,))
+
+ def __repr__(self):
+ return ("title: %s\n"
+ " root: %s\n"
+ " kernel: %s\n"
+ " args: %s\n"
+ " initrd: %s" %(self.title, self.root, self.kernel,
+ self.args, self.initrd))
+
+ def set_root(self, val):
+ self._root = GrubDiskPart(val)
+ def get_root(self):
+ return self._root
+ root = property(get_root, set_root)
+
+ def set_kernel(self, val):
+ if val.find(" ") == -1:
+ self._kernel = get_path(val)
+ self._args = None
+ return
+ (kernel, args) = val.split(None, 1)
+ self._kernel = get_path(kernel)
+ self._args = args
+ def get_kernel(self):
+ return self._kernel
+ def get_args(self):
+ return self._args
+ kernel = property(get_kernel, set_kernel)
+ args = property(get_args)
+
+ def set_initrd(self, val):
+ self._initrd = get_path(val)
+ def get_initrd(self):
+ return self._initrd
+ initrd = property(get_initrd, set_initrd)
+
+ # set up command handlers
+ commands = { "title": "self.title",
+ "root": "self.root",
+ "rootnoverify": "self.root",
+ "kernel": "self.kernel",
+ "initrd": "self.initrd",
+ "chainloader": None,
+ "module": None}
+
+
+class GrubConfigFile(object):
+ def __init__(self, fn = None):
+ self.filename = fn
+ self.images = []
+ self.timeout = -1
+
+ if fn is not None:
+ self.parse()
+
+ def parse(self, buf = None):
+ if buf is None:
+ if self.filename is None:
+ raise ValueError, "No config file defined to parse!"
+
+ f = open(self.filename, 'r')
+ lines = f.readlines()
+ f.close()
+ else:
+ lines = buf.split("\n")
+
+ img = []
+ for l in lines:
+ l = l.strip()
+ # skip blank lines
+ if len(l) == 0:
+ continue
+ # skip comments
+ if l.startswith('#'):
+ continue
+ # new image
+ if l.startswith("title"):
+ if len(img) > 0:
+ self.images.append(GrubImage(img))
+ img = [l]
+ continue
+
+ if len(img) > 0:
+ img.append(l)
+ continue
+
+ try:
+ (com, arg) = grub_split(l, 1)
+ except ValueError:
+ com = l
+ arg = ""
+
+ if self.commands.has_key(com):
+ if self.commands[com] is not None:
+ exec("%s = r\"%s\"" %(self.commands[com], arg.strip()))
+ else:
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