openwrt/upstream - upstream openwrt

	Commit message (Expand)	Author	Age	Files	Lines
*	kconfig.pl: fix handling of multiple kmod-* package referencing the same KCON...	Felix Fietkau	2010-01-28	1	-10/+22
*	kconfig.pl: interpret =n as undefined symbol	Felix Fietkau	2009-03-24	1	-1/+1
*	kconfig.pl: add support for custom prefixes instead of CONFIG_	Felix Fietkau	2009-03-24	1	-5/+18
*	kconfig.pl: throw warnings into stderr instead of stdout	Felix Fietkau	2009-03-09	1	-1/+1
*	fix kconfig.pl split for config symbols that have "0" as value	Felix Fietkau	2007-09-19	1	-1/+1
*	major target cleanup. it is now possible to have subtargets that can override...	Felix Fietkau	2007-09-08	1	-0/+148

import os import re import string def expand_dev_name(name): if not name: return name if re.match( '^/', name ): return name else: return '/dev/' + name def blkdev_name_to_number(name): """Take the given textual block-device name (e.g., '/dev/sda1', 'hda') and return the device number used by the OS. """ n = expand_dev_name(name) devname = 'virtual-device' devnum = None try: return (devname, os.stat(n).st_rdev) except Exception, ex: pass scsi_major = [ 8, 65, 66, 67, 68, 69, 70, 71, 128, 129, 130, 131, 132, 133, 134, 135 ] if re.match( '/dev/sd[a-z]([1-9]|1[0-5])?$', n): major = scsi_major[(ord(n[7:8]) - ord('a')) / 16] minor = ((ord(n[7:8]) - ord('a')) % 16) * 16 + int(n[8:] or 0) devnum = major * 256 + minor elif re.match( '/dev/sd[a-i][a-z]([1-9]|1[0-5])?$', n): major = scsi_major[((ord(n[7:8]) - ord('a') + 1) * 26 + (ord(n[8:9]) - ord('a'))) / 16 ] minor = (((ord(n[7:8]) - ord('a') + 1 ) * 26 + (ord(n[8:9]) - ord('a'))) % 16) * 16 + int(n[9:] or 0) devnum = major * 256 + minor elif re.match( '/dev/hd[a-t]([1-9]|[1-5][0-9]|6[0-3])?', n): ide_majors = [ 3, 22, 33, 34, 56, 57, 88, 89, 90, 91 ] major = ide_majors[(ord(n[7:8]) - ord('a')) / 2] minor = ((ord(n[7:8]) - ord('a')) % 2) * 64 + int(n[8:] or 0) devnum = major * 256 + minor elif re.match( '/dev/xvd[a-p]([1-9]|1[0-5])?$', n): devnum = (202 << 8) + ((ord(n[8:9]) - ord('a')) << 4) + int(n[9:] or 0) elif re.match('/dev/xvd[q-z]([1-9]|1[0-5])?$', n): devname = 'virtual-device-ext' devnum = (1 << 28) + ((ord(n[8:9]) - ord('a')) << 8) + int(n[9:] or 0) elif re.match('/dev/xvd[a-i][a-z]([1-9]|1[0-5])?$', n): devname = 'virtual-device-ext' devnum = (1 << 28) + (((ord(n[8:9]) - ord('a') + 1) * 26 + (ord(n[9:10]) - ord('a'))) << 8) + int(n[10:] or 0) elif re.match( '^(0x)[0-9a-fA-F]+$', name ): devnum = string.atoi(name, 16) elif re.match('^[0-9]+$', name): devnum = string.atoi(name, 10) return (devname, devnum) def blkdev_segment(name): """Take the given block-device name (e.g. '/dev/sda1', 'hda') and return a dictionary { device, start_sector, nr_sectors, type } device: Device number of the given partition start_sector: Index of first sector of the partition nr_sectors: Number of sectors comprising this partition type: 'Disk' or identifying name for partition type """ val = None (name, n) = blkdev_name_to_number(name) if not n is None: val = { 'device' : n, 'start_sector' : long(0), 'nr_sectors' : long(1L<<63), 'type' : 'Disk' } return val def _parse_uname(uname): fn = taptype = None if uname.find(":") != -1: (typ, fn) = uname.split(":", 1) if typ == "phy" and not fn.startswith("/"): fn = "/dev/%s" %(fn,) if typ == "tap": (taptype, fn) = fn.split(":", 1) return (fn, taptype) def blkdev_uname_to_file(uname): """Take a blkdev uname and return the corresponding filename.""" return _parse_uname(uname)[0] def blkdev_uname_to_taptype(uname): """Take a blkdev uname and return the blktap type.""" return _parse_uname(uname)[1] def mount_mode(name): mode = None name = expand_dev_name(name) lines = os.popen('mount 2>/dev/null').readlines() exp = re.compile('^' + name + ' .*[$,]r(?P<mode>[ow])[,$]') for line in lines: pm = exp.match(line) if not pm: continue mode = pm.group('mode') break if mode == 'w': return mode if mode == 'o': mode = 'r' return mode