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firewall: Fix MAC filter

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Packets destined for the firewall coming in from the blue
device where accepted too early to be processed by the
firewall input chain rules.

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
This commit is contained in:
Michael Tremer
2016-02-05 10:24:03 +00:00
parent ff43197b01
commit 645378fbb9
2 changed files with 8 additions and 3 deletions
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6
src/misc-progs/wirelessctrl.c
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@@ -126,21 +126,21 @@ int main(void) {
if (strcmp(enabled, "on") == 0) {
/* both specified, added security */
if ((strlen(macaddress) == 17) && (VALID_IP_AND_MASK(ipaddress))) {
snprintf(command, STRING_SIZE-1, "/sbin/iptables --wait -A WIRELESSINPUT -m mac --mac-source %s -s %s -i %s -j ACCEPT", macaddress, ipaddress, blue_dev);
snprintf(command, STRING_SIZE-1, "/sbin/iptables --wait -A WIRELESSINPUT -m mac --mac-source %s -s %s -i %s -j RETURN", macaddress, ipaddress, blue_dev);
safe_system(command);
snprintf(command, STRING_SIZE-1, "/sbin/iptables --wait -A WIRELESSFORWARD -m mac --mac-source %s -s %s -i %s -j RETURN", macaddress, ipaddress, blue_dev);
safe_system(command);
} else {
/* correctly formed mac address is 17 chars */
if (strlen(macaddress) == 17) {
snprintf(command, STRING_SIZE-1, "/sbin/iptables --wait -A WIRELESSINPUT -m mac --mac-source %s -i %s -j ACCEPT", macaddress, blue_dev);
snprintf(command, STRING_SIZE-1, "/sbin/iptables --wait -A WIRELESSINPUT -m mac --mac-source %s -i %s -j RETURN", macaddress, blue_dev);
safe_system(command);
snprintf(command, STRING_SIZE-1, "/sbin/iptables --wait -A WIRELESSFORWARD -m mac --mac-source %s -i %s -j RETURN", macaddress, blue_dev);
safe_system(command);
}
if (VALID_IP_AND_MASK(ipaddress)) {
snprintf(command, STRING_SIZE-1, "/sbin/iptables --wait -A WIRELESSINPUT -s %s -i %s -j ACCEPT", ipaddress, blue_dev);
snprintf(command, STRING_SIZE-1, "/sbin/iptables --wait -A WIRELESSINPUT -s %s -i %s -j RETURN", ipaddress, blue_dev);
safe_system(command);
snprintf(command, STRING_SIZE-1, "/sbin/iptables --wait -A WIRELESSFORWARD -s %s -i %s -j RETURN", ipaddress, blue_dev);
safe_system(command);