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#2778 (IPv6 PEX accepts garbage addresses) -- accept petch from jch to reject IPv6 addresses outside of 2000::/3 until the end of the 13th Baktun

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Charles Kerr 2010-01-31 00:23:31 +00:00
parent 6ec226634f
commit dcbb1ee872
1 changed files with 7 additions and 1 deletions
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8
libtransmission/net.c
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@ -630,7 +630,13 @@ isMartianAddr( const struct tr_address * a )
const unsigned char * address = (const unsigned char*)&a->addr.addr6;
return (address[0] == 0xFF) ||
(memcmp(address, zeroes, 15) == 0 &&
(address[15] == 0 || address[15] == 1));
(address[15] == 0 || address[15] == 1)) ||
/* Addresses outside of 2000::/3 are currently reserved,
but might be allocated at some future time. Since
there are a lot of buggy peers pushing around such
addresses over PEX, we reject them until the end of
the 13th Baktun. */
(tr_time() < 1356130800 && (address[0] & 0xC0) != 0x20);
break;
}