3 from cStringIO import StringIO
6 from dbparse import DBParser
11 def create_rules(countries):
13 for c in countries.itervalues():
14 for rule in c.restrictions:
18 def create_collections(countries):
20 for c in countries.itervalues():
21 result[c.restrictions] = 1
25 def be32(output, val):
26 output.write(struct.pack('>I', val))
29 def __init__(self, output):
31 self._pos = output.tell()
32 be32(output, 0xFFFFFFFF)
34 def set(self, val=None):
36 val = self._output.tell()
38 pos = self._output.tell()
39 self._output.seek(self._pos)
40 be32(self._output, val)
41 self._output.seek(pos)
47 countries = p.parse(file('db.txt'))
50 for c in countries.itervalues():
51 for b, p in c.restrictions:
54 rules = create_rules(countries)
55 rules.sort(cmp=lambda x, y: cmp(bands[x[0]], bands[y[0]]))
56 collections = create_collections(countries)
57 collections.sort(cmp=lambda x, y: cmp(bands[x[0][0]], bands[y[0][0]]))
61 # struct regdb_file_header
64 reg_country_ptr = PTR(output)
65 # add number of countries
66 be32(output, len(countries))
70 pi = [(i, p) for i, p in power.iteritems()]
71 pi.sort(cmp=lambda x, y: cmp(x[1], y[1]))
72 for power_rule_id, pr in pi:
73 environ = pr.environment
74 pr = [int(v * 100) for v in (pr.max_ant_gain, pr.max_ir_ptmp, pr.max_ir_ptp,
75 pr.max_eirp_ptmp, pr.max_eirp_ptp)]
76 power_rules[power_rule_id] = output.tell()
77 # struct regdb_file_power_rule
78 output.write(struct.pack('>cxxxIIIII', str(environ), *pr))
81 bi = [(f, i) for f, i in bands.iteritems()]
82 bi.sort(cmp=lambda x, y: cmp(x[1], y[1]))
83 for freq_range_id, fr in bands.iteritems():
84 freq_ranges[freq_range_id] = output.tell()
86 fr = [int(f * 1000) for f in (fr.start, fr.end, fr.maxbw)]
87 # struct regdb_file_freq_range
88 output.write(struct.pack('>IIIII', fr[0], fr[1], fr[2], fl, 0))
92 for reg_rule in rules:
93 freq_range_id, power_rule_id = reg_rule
94 reg_rules[reg_rule] = output.tell()
95 # struct regdb_file_reg_rule
96 output.write(struct.pack('>II', freq_ranges[freq_range_id], power_rules[power_rule_id]))
99 reg_rules_collections = {}
101 for coll in collections:
102 reg_rules_collections[coll] = output.tell()
103 # struct regdb_file_reg_rules_collection
105 be32(output, len(coll))
106 coll.sort(cmp=lambda x, y: cmp(bands[x[0]], bands[y[0]]))
108 be32(output, reg_rules[regrule])
110 # update country pointer now!
111 reg_country_ptr.set()
113 countrynames = countries.keys()
115 for alpha2 in countrynames:
116 coll = countries[alpha2]
117 # struct regdb_file_reg_country
118 output.write(struct.pack('>ccxxI', str(alpha2[0]), str(alpha2[1]), reg_rules_collections[coll.restrictions]))
120 # Load RSA only now so people can use this script
121 # without having those libraries installed to verify
123 from M2Crypto import RSA
125 # determine signature length
126 key = RSA.load_key('key.priv.pem')
128 hash.update(output.getvalue())
129 sig = key.sign(hash.digest())
134 hash.update(output.getvalue())
135 sig = key.sign(hash.digest())
139 outfile = open('regulatory.bin', 'w')
140 outfile.write(output.getvalue())