1 #!/usr/bin/python

2

3

4 # External variables:

5 # * network

6 # * domain

7

8 import sys

9

10 sys.path.append('/etc/xen')

11 try:

12 exec 'from %s import *' % (network)

13 except:

14 print "Can't find or interpret module %s with topology description" %(network)

15 sys.exit(1)

16

17 name=domain

18 N = domains.index(domain)

19

20 if domain_types[N] == 'hvm':

21 kernel='hvmloader'

22 builder='hvm'

23 device_model='qemu-dm'

24 boot='c'

25 sdl=0

26 vnc=1

27 vncconsole=0

28 stdvga=0

29 serial='pty'

30

31 memory=mem_table[domain]

32 vcpus=vcpus_table[domain]

33

34 disk=[]

35 if domain_types[N] == 'hvm':

36 letters='abcdefghijklmnopqrstuvwxyz'

37 i=0

38 for disk_description in disk_table[domain]:

39 i+=1

40 if disk_description.find(":") == -1:

41 disk_name=disk_description

42 if disk_name.find("=") == -1:

43 disk.append('phy:/dev/drbd/%s,hd%s,w' % (domain,letters[i-1]) )

44 else:

45 disk.append('phy:/dev/drbd/%s,%s,w' % (domain,(disk_name.split("="))[1]) )

46 else:

47 disk_name=(disk_description.split(':'))[0]

48 if disk_name.find("=") == -1:

49 disk.append('phy:/dev/drbd/%s,hd%s,w' % ((disk_description.split(':'))[1],letters[i-1]) )

50 else:

51 disk.append('phy:/dev/drbd/%s,%s,w' % ((disk_description.split(':'))[1],(disk_name.split("="))[1]) )

52

53 else:

54 i=0

55 for disk_description in disk_table[domain]:

56 i+=1

57 if disk_description.find(":") == -1:

58 disk_name=disk_description

59 if disk_name.find("=") == -1:

60 disk.append('phy:/dev/drbd/%s,hda%s,w' % (domain,i) )

61 else:

62 disk.append('phy:/dev/drbd/%s,%s,w' % (domain,(disk_name.split("="))[1]) )

63 else:

64 disk_name=(disk_description.split(':'))[0]

65 if disk_name.find("=") == -1:

66 disk.append('phy:/dev/drbd/%s,hda%s,w' % ((disk_description.split(':'))[1],i) )

67 else:

68 disk.append('phy:/dev/drbd/%s,%s,w' % ((disk_description.split(':'))[1],(disk_name.split("="))[1]) )

69

70 vif=[]

71 vbridges = vbridges_table[domain]

72 x=1

73 for i in vbridges:

74 if domain_types[N] == 'hvm':

75 vif.append('type=ioemu, bridge='+i+',mac=00:16:3e:01:'+hex(int(N))[2:]+':'+hex(int('c0',16)+x)[2:])

76 else:

77 vif.append('bridge='+i+',mac=00:16:3e:01:'+hex(int(N))[2:]+':'+hex(int('c0',16)+x)[2:])

78 x+=1

79

80

81 root="/dev/hda1 ro"

82 extra=""

83

84 def print_config():

85 if domain_types[N] == 'hvm':

86 print "name = \"%s\""% name

87 print "kernel = \"%s\""% kernel

88 print "builder = \"%s\""% builder

89 print "memory = %s"% memory

90 print "device_model=\"%s\"" % device_model

91 print "vcpus = %s"% vcpus

92 print "disk =", disk

93 print "vif =", vif

94 print "boot=\"%s\""%boot

95 print "sdl=%s"%sdl

96 print "vnc=%s"%vnc

97 print "vncconsole=%s"%vncconsole

98 print "stdvga=%s"%stdvga

99 print "serial=\"%s\""%serial

100 else:

101 print "name = \"%s\""% name

102 print "kernel = \"%s\""% kernel

103 print "ramdisk = \"%s\""% ramdisk

104 print "memory = %s"% memory

105 print "vcpus = %s"% vcpus

106 print "disk =", disk

107 print "vif =", vif

108 print "root = \"%s\""% root

109 print "extra = \"%s\""% extra

110 # else:

111