/** Add an entry to the GeoIP table indicated by <b>family</b>,
* parsing it from <b>line</b>. The format is as for geoip_load_file(). */
/*private*/ int
geoip_parse_entry(const char *line, sa_family_t family)
{
tor_addr_t low_addr, high_addr;
char c[3];
char *country = NULL;
if (!geoip_countries)
init_geoip_countries();
if (family == AF_INET) {
if (!geoip_ipv4_entries)
geoip_ipv4_entries = smartlist_new();
} else if (family == AF_INET6) {
if (!geoip_ipv6_entries)
geoip_ipv6_entries = smartlist_new();
} else {
log_warn(LD_GENERAL, "Unsupported family: %d", family);
return -1;
}
while (TOR_ISSPACE(*line))
++line;
if (*line == '#')
return 0;
if (family == AF_INET) {
unsigned int low, high;
if (tor_sscanf(line,"%u,%u,%2s", &low, &high, c) == 3 ||
tor_sscanf(line,"\"%u\",\"%u\",\"%2s\",", &low, &high, c) == 3) {
tor_addr_from_ipv4h(&low_addr, low);
tor_addr_from_ipv4h(&high_addr, high);
} else
goto fail;
country = c;
} else { /* AF_INET6 */
char buf[512];
char *low_str, *high_str;
struct in6_addr low, high;
char *strtok_state;
strlcpy(buf, line, sizeof(buf));
low_str = tor_strtok_r(buf, ",", &strtok_state);
if (!low_str)
goto fail;
high_str = tor_strtok_r(NULL, ",", &strtok_state);
if (!high_str)
goto fail;
country = tor_strtok_r(NULL, "\n", &strtok_state);
if (!country)
goto fail;
if (strlen(country) != 2)
goto fail;
if (tor_inet_pton(AF_INET6, low_str, &low) <= 0)
goto fail;
tor_addr_from_in6(&low_addr, &low);
if (tor_inet_pton(AF_INET6, high_str, &high) <= 0)
goto fail;
tor_addr_from_in6(&high_addr, &high);
}
geoip_add_entry(&low_addr, &high_addr, country);
return 0;
fail:
log_warn(LD_GENERAL, "Unable to parse line from GEOIP %s file: %s",
family == AF_INET ? "IPv4" : "IPv6", escaped(line));
return -1;
}
/**
* Helper function to parse out a line in the measured bandwidth file
* into a measured_bw_line_t output structure.
*
* If <b>line_is_after_headers</b> is true, then if we encounter an incomplete
* bw line, return -1 and warn, since we are after the headers and we should
* only parse bw lines. Return 0 otherwise.
*
* If <b>line_is_after_headers</b> is false then it means that we are not past
* the header block yet. If we encounter an incomplete bw line, return -1 but
* don't warn since there could be additional header lines coming. If we
* encounter a proper bw line, return 0 (and we got past the headers).
*
* If the line contains "vote=0", stop parsing it, and return -1, so that the
* line is ignored during voting.
*/
STATIC int
measured_bw_line_parse(measured_bw_line_t *out, const char *orig_line,
int line_is_after_headers)
{
char *line = tor_strdup(orig_line);
char *cp = line;
int got_bw = 0;
int got_node_id = 0;
char *strtok_state; /* lame sauce d'jour */
if (strlen(line) == 0) {
log_warn(LD_DIRSERV, "Empty line in bandwidth file");
tor_free(line);
return -1;
}
/* Remove end of line character, so that is not part of the token */
if (line[strlen(line) - 1] == '\n') {
line[strlen(line) - 1] = '\0';
}
cp = tor_strtok_r(cp, " \t", &strtok_state);
if (!cp) {
log_warn(LD_DIRSERV, "Invalid line in bandwidth file: %s",
escaped(orig_line));
tor_free(line);
return -1;
}
if (orig_line[strlen(orig_line)-1] != '\n') {
log_warn(LD_DIRSERV, "Incomplete line in bandwidth file: %s",
escaped(orig_line));
tor_free(line);
return -1;
}
do {
// If the line contains vote=0, ignore it.
if (strcmpstart(cp, "vote=0") == 0) {
log_debug(LD_DIRSERV, "Ignoring bandwidth file line that contains "
"vote=0: %s",escaped(orig_line));
tor_free(line);
return -1;
} else if (strcmpstart(cp, "bw=") == 0) {
int parse_ok = 0;
char *endptr;
if (got_bw) {
log_warn(LD_DIRSERV, "Double bw= in bandwidth file line: %s",
escaped(orig_line));
tor_free(line);
return -1;
}
cp+=strlen("bw=");
out->bw_kb = tor_parse_long(cp, 10, 0, LONG_MAX, &parse_ok, &endptr);
if (!parse_ok || (*endptr && !TOR_ISSPACE(*endptr))) {
log_warn(LD_DIRSERV, "Invalid bandwidth in bandwidth file line: %s",
escaped(orig_line));
tor_free(line);
return -1;
}
got_bw=1;
} else if (strcmpstart(cp, "node_id=$") == 0) {
if (got_node_id) {
log_warn(LD_DIRSERV, "Double node_id= in bandwidth file line: %s",
escaped(orig_line));
tor_free(line);
return -1;
}
cp+=strlen("node_id=$");
if (strlen(cp) != HEX_DIGEST_LEN ||
base16_decode(out->node_id, DIGEST_LEN,
cp, HEX_DIGEST_LEN) != DIGEST_LEN) {
log_warn(LD_DIRSERV, "Invalid node_id in bandwidth file line: %s",
escaped(orig_line));
tor_free(line);
return -1;
}
strlcpy(out->node_hex, cp, sizeof(out->node_hex));
got_node_id=1;
}
} while ((cp = tor_strtok_r(NULL, " \t", &strtok_state)));
if (got_bw && got_node_id) {
tor_free(line);
return 0;
} else if (line_is_after_headers == 0) {
/* There could be additional header lines, therefore do not give warnings
* but returns -1 since it's not a complete bw line. */
log_debug(LD_DIRSERV, "Missing bw or node_id in bandwidth file line: %s",
escaped(orig_line));
tor_free(line);
return -1;
} else {
log_warn(LD_DIRSERV, "Incomplete line in bandwidth file: %s",
escaped(orig_line));
tor_free(line);
return -1;
}
}
