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-rwxr-xr-xshare/seeds/generate-seeds.py135
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diff --git a/share/seeds/generate-seeds.py b/share/seeds/generate-seeds.py
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--- a/share/seeds/generate-seeds.py
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-#!/usr/bin/python
-# Copyright (c) 2014 Wladmir J. van der Laan
-# Distributed under the MIT software license, see the accompanying
-# file COPYING or http://www.opensource.org/licenses/mit-license.php.
-'''
-Script to generate list of seed nodes for chainparams.cpp.
-
-This script expects two text files in the directory that is passed as an
-argument:
-
- nodes_main.txt
- nodes_test.txt
-
-These files must consist of lines in the format
-
- <ip>
- <ip>:<port>
- [<ipv6>]
- [<ipv6>]:<port>
- <onion>.onion
- 0xDDBBCCAA (IPv4 little-endian old pnSeeds format)
-
-The output will be two data structures with the peers in binary format:
-
- static SeedSpec6 pnSeed6_main[]={
- ...
- }
- static SeedSpec6 pnSeed6_test[]={
- ...
- }
-
-These should be pasted into `src/chainparamsseeds.h`.
-'''
-from __future__ import print_function, division
-from base64 import b32decode
-from binascii import a2b_hex
-import sys, os
-import re
-
-# ipv4 in ipv6 prefix
-pchIPv4 = bytearray([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xff, 0xff])
-# tor-specific ipv6 prefix
-pchOnionCat = bytearray([0xFD,0x87,0xD8,0x7E,0xEB,0x43])
-
-def name_to_ipv6(addr):
- if len(addr)>6 and addr.endswith('.onion'):
- vchAddr = b32decode(addr[0:-6], True)
- if len(vchAddr) != 16-len(pchOnionCat):
- raise ValueError('Invalid onion %s' % s)
- return pchOnionCat + vchAddr
- elif '.' in addr: # IPv4
- return pchIPv4 + bytearray((int(x) for x in addr.split('.')))
- elif ':' in addr: # IPv6
- sub = [[], []] # prefix, suffix
- x = 0
- addr = addr.split(':')
- for i,comp in enumerate(addr):
- if comp == '':
- if i == 0 or i == (len(addr)-1): # skip empty component at beginning or end
- continue
- x += 1 # :: skips to suffix
- assert(x < 2)
- else: # two bytes per component
- val = int(comp, 16)
- sub[x].append(val >> 8)
- sub[x].append(val & 0xff)
- nullbytes = 16 - len(sub[0]) - len(sub[1])
- assert((x == 0 and nullbytes == 0) or (x == 1 and nullbytes > 0))
- return bytearray(sub[0] + ([0] * nullbytes) + sub[1])
- elif addr.startswith('0x'): # IPv4-in-little-endian
- return pchIPv4 + bytearray(reversed(a2b_hex(addr[2:])))
- else:
- raise ValueError('Could not parse address %s' % addr)
-
-def parse_spec(s, defaultport):
- match = re.match('\[([0-9a-fA-F:]+)\](?::([0-9]+))?$', s)
- if match: # ipv6
- host = match.group(1)
- port = match.group(2)
- else:
- (host,_,port) = s.partition(':')
-
- if not port:
- port = defaultport
- else:
- port = int(port)
-
- host = name_to_ipv6(host)
-
- return (host,port)
-
-def process_nodes(g, f, structname, defaultport):
- g.write('static SeedSpec6 %s[] = {\n' % structname)
- first = True
- for line in f:
- comment = line.find('#')
- if comment != -1:
- line = line[0:comment]
- line = line.strip()
- if not line:
- continue
- if not first:
- g.write(',\n')
- first = False
-
- (host,port) = parse_spec(line, defaultport)
- hoststr = ','.join(('0x%02x' % b) for b in host)
- g.write(' {{%s}, %i}' % (hoststr, port))
- g.write('\n};\n')
-
-def main():
- if len(sys.argv)<2:
- print(('Usage: %s <path_to_nodes_txt>' % sys.argv[0]), file=sys.stderr)
- exit(1)
- g = sys.stdout
- indir = sys.argv[1]
- g.write('#ifndef BITCOIN_CHAINPARAMSSEEDS_H\n')
- g.write('#define BITCOIN_CHAINPARAMSSEEDS_H\n')
- g.write('/**\n')
- g.write(' * List of fixed seed nodes for the bitcoin network\n')
- g.write(' * AUTOGENERATED by share/seeds/generate-seeds.py\n')
- g.write(' *\n')
- g.write(' * Each line contains a 16-byte IPv6 address and a port.\n')
- g.write(' * IPv4 as well as onion addresses are wrapped inside a IPv6 address accordingly.\n')
- g.write(' */\n')
- with open(os.path.join(indir,'nodes_main.txt'),'r') as f:
- process_nodes(g, f, 'pnSeed6_main', 8333)
- g.write('\n')
- with open(os.path.join(indir,'nodes_test.txt'),'r') as f:
- process_nodes(g, f, 'pnSeed6_test', 18333)
- g.write('#endif // BITCOIN_CHAINPARAMSSEEDS_H\n')
-
-if __name__ == '__main__':
- main()
-