/**
* ip_range_split() callback.
*
* Insert IP range in database, linking it to the proper country code.
*/
static void
gip_add_cidr(uint32 ip, uint bits, void *udata)
{
struct range_context *ctx = udata;
iprange_err_t error;
uint16 cc;
if (GNET_PROPERTY(reload_debug) > 4)
printf("GEO adding %s/%d for \"%s\"\n",
ip_to_string(ip), bits, ctx->line);
cc = ctx->country;
error = iprange_add_cidr(geo_db, ip, bits, cc);
switch (error) {
case IPR_ERR_OK:
break;
/* FALL THROUGH */
default:
g_warning("%s, line %d: rejected entry \"%s\" (%s/%d): %s",
gip_source[GIP_IPV4].file, ctx->linenum,
ctx->line, ip_to_string(ip), bits, iprange_strerror(error));
return;
}
}
/**
* Load bogons data from the supplied FILE.
*
* @returns the amount of entries loaded.
*/
static G_GNUC_COLD int
bogons_load(FILE *f)
{
char line[1024];
uint32 ip, netmask;
int linenum = 0;
int bits;
iprange_err_t error;
filestat_t buf;
bogons_db = iprange_new();
if (-1 == fstat(fileno(f), &buf)) {
g_warning("cannot stat %s: %m", bogons_file);
} else {
bogons_mtime = buf.st_mtime;
}
while (fgets(line, sizeof line, f)) {
linenum++;
/*
* Remove all trailing spaces in string.
* Otherwise, lines which contain only spaces would cause a warning.
*/
if (!file_line_chomp_tail(line, sizeof line, NULL)) {
g_warning("%s, line %d: too long a line", bogons_file, linenum);
break;
}
if (file_line_is_skipable(line))
continue;
if (!string_to_ip_and_mask(line, &ip, &netmask)) {
g_warning("%s, line %d: invalid IP or netmask \"%s\"",
bogons_file, linenum, line);
continue;
}
bits = netmask_to_cidr(netmask);
error = iprange_add_cidr(bogons_db, ip, bits, 1);
switch (error) {
case IPR_ERR_OK:
break;
/* FALL THROUGH */
default:
g_warning("%s, line %d: rejected entry \"%s\" (%s/%d): %s",
bogons_file, linenum, line, ip_to_string(ip), bits,
iprange_strerror(error));
continue;
}
}
iprange_sync(bogons_db);
if (GNET_PROPERTY(reload_debug)) {
g_debug("loaded %u bogus IP ranges (%u hosts)",
iprange_get_item_count(bogons_db),
iprange_get_host_count4(bogons_db));
}
return iprange_get_item_count(bogons_db);
}
/**
* Parse an IPv6 Geo IP line and record the range in the database.
*/
static void
gip_parse_ipv6(const char *line, int linenum)
{
const char *end;
uint16 code;
int error;
uint8 ip[16];
unsigned bits;
/*
* Each line looks like:
*
* 2a03:be00::/32 nl
*
* The leading part up to the space is the IPv6 network in CIDR format.
* The trailing word is the 2-letter ISO country code.
*/
if (!parse_ipv6_addr(line, ip, &end)) {
g_warning("%s, line %d: bad IPv6 network address \"%s\"",
gip_source[GIP_IPV6].file, linenum, line);
return;
}
if ('/' != *end) {
g_warning("%s, line %d: missing network separator in \"%s\"",
gip_source[GIP_IPV6].file, linenum, line);
return;
}
bits = parse_uint(end + 1, &end, 10, &error);
if (error) {
g_warning("%s, line %d: cannot parse network bit amount in \"%s\"",
gip_source[GIP_IPV6].file, linenum, line);
return;
}
if (bits > 128) {
g_warning("%s, line %d: invalid bit amount %u in \"%s\"",
gip_source[GIP_IPV6].file, linenum, bits, line);
return;
}
if (!is_ascii_space(*end)) {
g_warning("%s, line %d: missing spaces after network in \"%s\"",
gip_source[GIP_IPV6].file, linenum, line);
return;
}
while (is_ascii_space(*end))
end++;
if ('\0' == *end) {
g_warning("%s, line %d: missing country code in \"%s\"",
gip_source[GIP_IPV6].file, linenum, line);
return;
}
code = iso3166_encode_cc(end);
if (ISO3166_INVALID == code) {
g_warning("%s, line %d: bad country code in \"%s\"",
gip_source[GIP_IPV6].file, linenum, line);
return;
}
error = iprange_add_cidr6(geo_db, ip, bits, (code + 1) << 1);
if (IPR_ERR_OK != error) {
g_warning("%s, line %d: cannot insert %s/%u: %s",
gip_source[GIP_IPV6].file, linenum, ipv6_to_string(ip),
bits, iprange_strerror(error));
}
}
