]>
git.ipfire.org Git - ipfire-2.x.git/blob - src/misc-progs/wirelessctrl.c
1 /* IPCop helper program - wirelessctrl
3 * This program is distributed under the terms of the GNU General Public
4 * Licence. See the file COPYING for details.
6 * (c) Alan Hourihane, 2003
10 #include "libsmooth.h"
16 #include <sys/types.h>
23 char blue_dev
[STRING_SIZE
] = "";
24 char command
[STRING_SIZE
];
26 void exithandler(void) {
27 /* added comment mark to the drop rules to be able to collect the bytes by the collectd */
28 if (strlen(blue_dev
) > 0) {
29 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSINPUT -i %s -j DROP -m comment --comment 'DROP_Wirelessinput'", blue_dev
);
31 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSFORWARD -i %s -j DROP -m comment --comment 'DROP_Wirelessforward'", blue_dev
);
40 char green_dev
[STRING_SIZE
] = "";
41 char buffer
[STRING_SIZE
];
42 char *index
, *ipaddress
, *macaddress
, *enabled
;
43 struct keyvalue
*kv
= NULL
;
48 /* flush wireless iptables */
49 safe_system("/sbin/iptables -F WIRELESSINPUT > /dev/null 2> /dev/null");
50 safe_system("/sbin/iptables -F WIRELESSFORWARD > /dev/null 2> /dev/null");
52 memset(buffer
, 0, STRING_SIZE
);
54 /* Init the keyvalue structure */
57 /* Read in the current values */
58 if (!readkeyvalues(kv
, CONFIG_ROOT
"/ethernet/settings")) {
59 fprintf(stderr
, "Cannot read ethernet settings\n");
63 /* Read in the firewall values */
64 if (!readkeyvalues(kv
, CONFIG_ROOT
"/optionsfw/settings")) {
65 fprintf(stderr
, "Cannot read optionsfw settings\n");
69 /* Get the GREEN interface details */
70 if (findkey(kv
, "GREEN_DEV", green_dev
) > 0) {
71 if (!VALID_DEVICE(green_dev
)) {
72 fprintf(stderr
, "Bad GREEN_DEV: %s\n", green_dev
);
77 /* Get the BLUE interface details */
78 if (findkey(kv
, "BLUE_DEV", blue_dev
) > 0) {
79 if ((strlen(blue_dev
) > 0) && !VALID_DEVICE(blue_dev
)) {
80 fprintf(stderr
, "Bad BLUE_DEV: %s\n", blue_dev
);
85 if (strlen(blue_dev
) == 0) {
89 if ((fd
= fopen(CONFIG_ROOT
"/wireless/nodrop", "r")))
92 /* register exit handler to ensure the block rule is always present */
95 if (!(fd
= fopen(CONFIG_ROOT
"/wireless/config", "r"))) {
99 /* restrict blue access tp the proxy port */
100 if (findkey(kv
, "DROPPROXY", buffer
) && strcmp(buffer
, "on") == 0) {
101 /* Read the proxy values */
102 if (!readkeyvalues(kv
, CONFIG_ROOT
"/proxy/settings") || !(findkey(kv
, "PROXY_PORT", buffer
))) {
103 fprintf(stderr
, "Cannot read proxy settings\n");
107 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSFORWARD -i %s -p tcp ! --dport %s -j DROP -m comment --comment 'DROP_Wirelessforward'", blue_dev
, buffer
);
108 safe_system(command
);
109 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSINPUT -i %s -p tcp ! --dport %s -j DROP -m comment --comment 'DROP_Wirelessinput'", blue_dev
, buffer
);
110 safe_system(command
);
113 /* not allow blue to acces a samba server running on local fire*/
114 if (findkey(kv
, "DROPSAMBA", buffer
) && strcmp(buffer
, "on") == 0) {
115 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSFORWARD -i %s -p tcp -m multiport --ports 135,137,138,139,445,1025 -j DROP -m comment --comment 'DROP_Wirelessforward'", blue_dev
);
116 safe_system(command
);
117 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSINPUT -i %s -p tcp -m multiport --ports 135,137,138,139,445,1025 -j DROP -m comment --comment 'DROP_Wirelessinput'", blue_dev
);
118 safe_system(command
);
119 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSFORWARD -i %s -p udp -m multiport --ports 135,137,138,139,445,1025 -j DROP -m comment --comment 'DROP_Wirelessforward'", blue_dev
);
120 safe_system(command
);
121 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSINPUT -i %s -p udp -m multiport --ports 135,137,138,139,445,1025 -j DROP -m comment --comment 'DROP_Wirelessinput'", blue_dev
);
122 safe_system(command
);
125 while (fgets(buffer
, STRING_SIZE
, fd
)) {
126 buffer
[strlen(buffer
) - 1] = 0;
128 index
= strtok(buffer
, ",");
129 ipaddress
= strtok(NULL
, ",");
130 macaddress
= strtok(NULL
, ",");
131 enabled
= strtok(NULL
, ",");
133 if (strcmp(enabled
, "on") == 0) {
134 /* both specified, added security */
135 if ((strlen(macaddress
) == 17) && (VALID_IP_AND_MASK(ipaddress
))) {
136 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSINPUT -m mac --mac-source %s -s %s -i %s -j ACCEPT", macaddress
, ipaddress
, blue_dev
);
137 safe_system(command
);
138 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSFORWARD -m mac --mac-source %s -s %s -i %s -j RETURN", macaddress
, ipaddress
, blue_dev
);
139 safe_system(command
);
141 /* correctly formed mac address is 17 chars */
142 if (strlen(macaddress
) == 17) {
143 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSINPUT -m mac --mac-source %s -i %s -j ACCEPT", macaddress
, blue_dev
);
144 safe_system(command
);
145 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSFORWARD -m mac --mac-source %s -i %s -j RETURN", macaddress
, blue_dev
);
146 safe_system(command
);
149 if (VALID_IP_AND_MASK(ipaddress
)) {
150 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSINPUT -s %s -i %s -j ACCEPT", ipaddress
, blue_dev
);
151 safe_system(command
);
152 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSFORWARD -s %s -i %s -j RETURN", ipaddress
, blue_dev
);
153 safe_system(command
);
159 /* with this rule you can disable the logging of the dropped wireless input packets*/
160 if (findkey(kv
, "DROPWIRELESSINPUT", buffer
) && strcmp(buffer
, "on") == 0) {
161 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSINPUT -i %s -j LOG --log-prefix 'DROP_Wirelessinput'", blue_dev
);
162 safe_system(command
);
165 /* with this rule you can disable the logging of the dropped wireless forward packets*/
166 if (findkey(kv
, "DROPWIRELESSFORWARD", buffer
) && strcmp(buffer
, "on") == 0) {
167 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables -A WIRELESSFORWARD -i %s -j LOG --log-prefix 'DROP_Wirelessforward'", blue_dev
);
168 safe_system(command
);