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speed-check: fix domain-rule speed check memleak issue

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This commit is contained in:
Nick Peng
2022-06-05 16:08:19 +08:00
parent c960f3f511
commit 6cfaa639f6
3 changed files with 68 additions and 64 deletions
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110
src/dns_conf.c
View File

@@ -21,6 +21,7 @@
#include "rbtree.h"
#include "tlog.h"
#include "util.h"
#include <errno.h>
#include <getopt.h>
#include <libgen.h>
#include <stdio.h>
@@ -28,7 +29,6 @@
#include <string.h>
#include <syslog.h>
#include <unistd.h>
#include <errno.h>
#define DEFAULT_DNS_CACHE_SIZE 512
#define DNS_MAX_REPLY_IP_NUM 8
@@ -71,10 +71,13 @@ struct dns_servers dns_conf_servers[DNS_MAX_SERVERS];
char dns_conf_server_name[DNS_MAX_SERVER_NAME_LEN];
int dns_conf_server_num;
struct dns_domain_check_order dns_conf_check_order[DOMAIN_CHECK_NUM] = {
{.type = DOMAIN_CHECK_ICMP, .tcp_port = 0},
{.type = DOMAIN_CHECK_TCP, .tcp_port = 80},
{.type = DOMAIN_CHECK_TCP, .tcp_port = 443},
struct dns_domain_check_orders dns_conf_check_orders = {
.orders =
{
{.type = DOMAIN_CHECK_ICMP, .tcp_port = 0},
{.type = DOMAIN_CHECK_TCP, .tcp_port = 80},
{.type = DOMAIN_CHECK_TCP, .tcp_port = 443},
},
};
int dns_has_cap_ping = 0;
@@ -826,7 +829,7 @@ errout:
return 0;
}
static int _config_speed_check_mode_parser(struct dns_domain_check_order check_order[], const char *mode)
static int _config_speed_check_mode_parser(struct dns_domain_check_orders *check_orders, const char *mode)
{
char tmpbuff[DNS_MAX_OPT_LEN];
char *field;
@@ -836,7 +839,7 @@ static int _config_speed_check_mode_parser(struct dns_domain_check_order check_o
int i = 0;
safe_strncpy(tmpbuff, mode, DNS_MAX_OPT_LEN);
memset(check_order, 0, sizeof(*check_order));
memset(check_orders, 0, sizeof(*check_orders));
ptr = tmpbuff;
do {
@@ -857,8 +860,8 @@ static int _config_speed_check_mode_parser(struct dns_domain_check_order check_o
}
continue;
}
check_order[order].type = DOMAIN_CHECK_ICMP;
check_order[order].tcp_port = 0;
check_orders->orders[order].type = DOMAIN_CHECK_ICMP;
check_orders->orders[order].tcp_port = 0;
} else if (strstr(field, "tcp") == field) {
char *port_str = strstr(field, ":");
if (port_str) {
@@ -868,12 +871,12 @@ static int _config_speed_check_mode_parser(struct dns_domain_check_order check_o
}
}
check_order[order].type = DOMAIN_CHECK_TCP;
check_order[order].tcp_port = port;
check_orders->orders[order].type = DOMAIN_CHECK_TCP;
check_orders->orders[order].tcp_port = port;
} else if (strncmp(field, "none", sizeof("none")) == 0) {
for (i = order; i < DOMAIN_CHECK_NUM; i++) {
check_order[i].type = DOMAIN_CHECK_NONE;
check_order[i].tcp_port = 0;
check_orders->orders[i].type = DOMAIN_CHECK_NONE;
check_orders->orders[i].tcp_port = 0;
}
return 0;
@@ -897,7 +900,7 @@ static int _config_speed_check_mode(void *data, int argc, char *argv[])
}
safe_strncpy(mode, argv[1], sizeof(mode));
return _config_speed_check_mode_parser(dns_conf_check_order, mode);
return _config_speed_check_mode_parser(&dns_conf_check_orders, mode);
}
static int _config_bind_ip(int argc, char *argv[], DNS_BIND_TYPE type)
@@ -1317,25 +1320,26 @@ errout:
static int _conf_domain_rule_speed_check(char *domain, const char *mode)
{
struct dns_domain_check_order *check_order;
struct dns_domain_check_orders *check_orders = NULL;
check_order = malloc(sizeof(*check_order));
if (check_order == NULL) {
check_orders = malloc(sizeof(*check_orders) * DOMAIN_CHECK_NUM);
if (check_orders == NULL) {
goto errout;
}
memset(check_orders, 0, sizeof(*check_orders));
if (_config_speed_check_mode_parser(check_orders, mode) != 0) {
goto errout;
}
if (_config_speed_check_mode_parser(check_order, mode) != 0) {
goto errout;
}
if (_config_domain_rule_add(domain, DOMAIN_RULE_CHECKSPEED, check_order) != 0) {
if (_config_domain_rule_add(domain, DOMAIN_RULE_CHECKSPEED, check_orders) != 0) {
goto errout;
}
return 0;
errout:
if (check_order) {
free(check_order);
if (check_orders) {
free(check_orders);
}
return 0;
}
@@ -1495,34 +1499,29 @@ static int _conf_ptr_add(const char *hostname, const char *ip)
struct sockaddr_in *addr_in;
addr_in = (struct sockaddr_in *)&addr;
paddr = (unsigned char *)&(addr_in->sin_addr.s_addr);
snprintf(ptr_domain, sizeof(ptr_domain), "%d.%d.%d.%d.in-addr.arpa",
paddr[3], paddr[2], paddr[1], paddr[0]);
snprintf(ptr_domain, sizeof(ptr_domain), "%d.%d.%d.%d.in-addr.arpa", paddr[3], paddr[2], paddr[1], paddr[0]);
} break;
case AF_INET6: {
struct sockaddr_in6 *addr_in6;
addr_in6 = (struct sockaddr_in6 *)&addr;
if (IN6_IS_ADDR_V4MAPPED(&addr_in6->sin6_addr)) {
paddr = addr_in6->sin6_addr.s6_addr + 12;
snprintf(ptr_domain, sizeof(ptr_domain), "%d.%d.%d.%d.in-addr.arpa",
paddr[3], paddr[2], paddr[1], paddr[0]);
snprintf(ptr_domain, sizeof(ptr_domain), "%d.%d.%d.%d.in-addr.arpa", paddr[3], paddr[2], paddr[1],
paddr[0]);
} else {
paddr = addr_in6->sin6_addr.s6_addr;
snprintf(
ptr_domain, sizeof(ptr_domain),
"%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x."
"%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x."
"%x.ip6.arpa",
paddr[15] & 0xF, (paddr[15] >> 4) & 0xF, paddr[14] & 0xF,
(paddr[14] >> 4) & 0xF, paddr[13] & 0xF, (paddr[13] >> 4) & 0xF,
paddr[12] & 0xF, (paddr[12] >> 4) & 0xF, paddr[11] & 0xF,
(paddr[11] >> 4) & 0xF, paddr[10] & 0xF, (paddr[10] >> 4) & 0xF,
paddr[9] & 0xF, (paddr[9] >> 4) & 0xF, paddr[8] & 0xF,
(paddr[8] >> 4) & 0xF, paddr[7] & 0xF, (paddr[7] >> 4) & 0xF,
paddr[6] & 0xF, (paddr[6] >> 4) & 0xF, paddr[5] & 0xF,
(paddr[5] >> 4) & 0xF, paddr[4] & 0xF, (paddr[4] >> 4) & 0xF,
paddr[3] & 0xF, (paddr[3] >> 4) & 0xF, paddr[2] & 0xF,
(paddr[2] >> 4) & 0xF, paddr[1] & 0xF, (paddr[1] >> 4) & 0xF,
paddr[0] & 0xF, (paddr[0] >> 4) & 0xF);
snprintf(ptr_domain, sizeof(ptr_domain),
"%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x."
"%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x.%x."
"%x.ip6.arpa",
paddr[15] & 0xF, (paddr[15] >> 4) & 0xF, paddr[14] & 0xF, (paddr[14] >> 4) & 0xF, paddr[13] & 0xF,
(paddr[13] >> 4) & 0xF, paddr[12] & 0xF, (paddr[12] >> 4) & 0xF, paddr[11] & 0xF,
(paddr[11] >> 4) & 0xF, paddr[10] & 0xF, (paddr[10] >> 4) & 0xF, paddr[9] & 0xF,
(paddr[9] >> 4) & 0xF, paddr[8] & 0xF, (paddr[8] >> 4) & 0xF, paddr[7] & 0xF,
(paddr[7] >> 4) & 0xF, paddr[6] & 0xF, (paddr[6] >> 4) & 0xF, paddr[5] & 0xF,
(paddr[5] >> 4) & 0xF, paddr[4] & 0xF, (paddr[4] >> 4) & 0xF, paddr[3] & 0xF,
(paddr[3] >> 4) & 0xF, paddr[2] & 0xF, (paddr[2] >> 4) & 0xF, paddr[1] & 0xF,
(paddr[1] >> 4) & 0xF, paddr[0] & 0xF, (paddr[0] >> 4) & 0xF);
}
} break;
default:
@@ -1598,7 +1597,8 @@ errout:
static int _conf_host_add(const char *hostname, const char *ip, dns_hosts_type host_type)
{
struct dns_hosts *host = NULL;
struct dns_hosts *host_other __attribute__((unused));;
struct dns_hosts *host_other __attribute__((unused));
;
struct sockaddr_storage addr;
socklen_t addr_len = sizeof(addr);
int dns_type = 0;
@@ -1636,7 +1636,7 @@ static int _conf_host_add(const char *hostname, const char *ip, dns_hosts_type h
/* add this to return SOA when addr is not exist */
host_other = _dns_conf_get_hosts(hostname, dns_type_other);
host->host_type = host_type;
switch (addr.ss_family) {
@@ -1667,7 +1667,7 @@ errout:
return -1;
}
static int _conf_dhcp_lease_dnsmasq_add(const char *file)
static int _conf_dhcp_lease_dnsmasq_add(const char *file)
{
FILE *fp = NULL;
char line[MAX_LINE_LEN];
@@ -1709,7 +1709,7 @@ static int _conf_dhcp_lease_dnsmasq_add(const char *file)
fclose(fp);
return 0;
}
}
static int _conf_dhcp_lease_dnsmasq_file(void *data, int argc, char *argv[])
{
@@ -1752,7 +1752,7 @@ static void _config_host_table_destroy(void)
dns_hosts_record_num = 0;
}
int dns_server_check_update_hosts(void)
int dns_server_check_update_hosts(void)
{
struct stat statbuf;
time_t now;
@@ -1810,7 +1810,7 @@ static int _config_log_level(void *data, int argc, char *argv[])
return 0;
}
static void _config_setup_smartdns_domain(void)
static void _config_setup_smartdns_domain(void)
{
char hostname[DNS_MAX_CNAME_LEN];
/* get local host name */
@@ -1988,13 +1988,13 @@ static int _dns_conf_speed_check_mode_verify(void)
}
for (i = 0; i < DOMAIN_CHECK_NUM; i++) {
if (dns_conf_check_order[i].type == DOMAIN_CHECK_ICMP) {
if (dns_conf_check_orders.orders[i].type == DOMAIN_CHECK_ICMP) {
for (j = i + 1; j < DOMAIN_CHECK_NUM; j++) {
dns_conf_check_order[j - 1].type = dns_conf_check_order[j].type;
dns_conf_check_order[j - 1].tcp_port = dns_conf_check_order[j].tcp_port;
dns_conf_check_orders.orders[j - 1].type = dns_conf_check_orders.orders[j].type;
dns_conf_check_orders.orders[j - 1].tcp_port = dns_conf_check_orders.orders[j].tcp_port;
}
dns_conf_check_order[j - 1].type = DOMAIN_CHECK_NONE;
dns_conf_check_order[j - 1].tcp_port = 0;
dns_conf_check_orders.orders[j - 1].type = DOMAIN_CHECK_NONE;
dns_conf_check_orders.orders[j - 1].tcp_port = 0;
print_log = 1;
}
}