]>
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>
25 char blue_dev
[STRING_SIZE
] = "";
26 char command
[STRING_SIZE
];
28 void exithandler(void) {
29 /* added comment mark to the drop rules to be able to collect the bytes by the collectd */
30 if (strlen(blue_dev
) > 0) {
31 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSINPUT -i %s -j DROP -m comment --comment 'DROP_Wirelessinput'", blue_dev
);
33 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSFORWARD -i %s -j DROP -m comment --comment 'DROP_Wirelessforward'", blue_dev
);
42 char green_dev
[STRING_SIZE
] = "";
43 char buffer
[STRING_SIZE
];
44 char *index
, *ipaddress
, *macaddress
, *enabled
;
45 struct keyvalue
*kv
= NULL
;
50 /* flush wireless iptables */
51 safe_system("/sbin/iptables --wait -F WIRELESSINPUT > /dev/null 2> /dev/null");
52 safe_system("/sbin/iptables --wait -F WIRELESSFORWARD > /dev/null 2> /dev/null");
54 memset(buffer
, 0, STRING_SIZE
);
56 /* Init the keyvalue structure */
59 /* Read in the current values */
60 if (!readkeyvalues(kv
, CONFIG_ROOT
"/ethernet/settings")) {
61 fprintf(stderr
, "Cannot read ethernet settings\n");
65 /* Read in the firewall values */
66 if (!readkeyvalues(kv
, CONFIG_ROOT
"/optionsfw/settings")) {
67 fprintf(stderr
, "Cannot read optionsfw settings\n");
71 /* Get the GREEN interface details */
72 if (findkey(kv
, "GREEN_DEV", green_dev
) > 0) {
73 if (!VALID_DEVICE(green_dev
)) {
74 fprintf(stderr
, "Bad GREEN_DEV: %s\n", green_dev
);
79 /* Get the BLUE interface details */
80 if (findkey(kv
, "BLUE_DEV", blue_dev
) > 0) {
81 if ((strlen(blue_dev
) > 0) && !VALID_DEVICE(blue_dev
)) {
82 fprintf(stderr
, "Bad BLUE_DEV: %s\n", blue_dev
);
87 if (strlen(blue_dev
) == 0) {
91 if ((fd
= fopen(CONFIG_ROOT
"/wireless/nodrop", "r")))
94 /* register exit handler to ensure the block rule is always present */
97 if (!(fd
= fopen(CONFIG_ROOT
"/wireless/config", "r"))) {
101 /* restrict blue access tp the proxy port */
102 if (findkey(kv
, "DROPPROXY", buffer
) && strcmp(buffer
, "on") == 0) {
103 /* Read the proxy values */
104 if (!readkeyvalues(kv
, CONFIG_ROOT
"/proxy/settings") || !(findkey(kv
, "PROXY_PORT", buffer
))) {
105 fprintf(stderr
, "Cannot read proxy settings\n");
109 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSFORWARD -i %s -p tcp ! --dport %s -j DROP -m comment --comment 'DROP_Wirelessforward'", blue_dev
, buffer
);
110 safe_system(command
);
111 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSINPUT -i %s -p tcp ! --dport %s -j DROP -m comment --comment 'DROP_Wirelessinput'", blue_dev
, buffer
);
112 safe_system(command
);
115 /* not allow blue to acces a samba server running on local fire*/
116 if (findkey(kv
, "DROPSAMBA", buffer
) && strcmp(buffer
, "on") == 0) {
117 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSFORWARD -i %s -p tcp -m multiport --ports 135,137,138,139,445,1025 -j DROP -m comment --comment 'DROP_Wirelessforward'", blue_dev
);
118 safe_system(command
);
119 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSINPUT -i %s -p tcp -m multiport --ports 135,137,138,139,445,1025 -j DROP -m comment --comment 'DROP_Wirelessinput'", blue_dev
);
120 safe_system(command
);
121 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSFORWARD -i %s -p udp -m multiport --ports 135,137,138,139,445,1025 -j DROP -m comment --comment 'DROP_Wirelessforward'", blue_dev
);
122 safe_system(command
);
123 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSINPUT -i %s -p udp -m multiport --ports 135,137,138,139,445,1025 -j DROP -m comment --comment 'DROP_Wirelessinput'", blue_dev
);
124 safe_system(command
);
127 while (fgets(buffer
, STRING_SIZE
, fd
)) {
128 buffer
[strlen(buffer
) - 1] = 0;
130 index
= strtok(buffer
, ",");
131 ipaddress
= strtok(NULL
, ",");
132 macaddress
= strtok(NULL
, ",");
133 enabled
= strtok(NULL
, ",");
135 if (strcmp(enabled
, "on") == 0) {
136 /* both specified, added security */
137 if ((strlen(macaddress
) == 17) && (VALID_IP_AND_MASK(ipaddress
))) {
138 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
);
139 safe_system(command
);
140 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
);
141 safe_system(command
);
143 /* correctly formed mac address is 17 chars */
144 if (strlen(macaddress
) == 17) {
145 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSINPUT -m mac --mac-source %s -i %s -j ACCEPT", macaddress
, blue_dev
);
146 safe_system(command
);
147 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSFORWARD -m mac --mac-source %s -i %s -j RETURN", macaddress
, blue_dev
);
148 safe_system(command
);
151 if (VALID_IP_AND_MASK(ipaddress
)) {
152 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSINPUT -s %s -i %s -j ACCEPT", ipaddress
, blue_dev
);
153 safe_system(command
);
154 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSFORWARD -s %s -i %s -j RETURN", ipaddress
, blue_dev
);
155 safe_system(command
);
161 /* with this rule you can disable the logging of the dropped wireless input packets*/
162 if (findkey(kv
, "DROPWIRELESSINPUT", buffer
) && strcmp(buffer
, "on") == 0) {
163 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSINPUT -i %s -j LOG --log-prefix 'DROP_Wirelessinput'", blue_dev
);
164 safe_system(command
);
167 /* with this rule you can disable the logging of the dropped wireless forward packets*/
168 if (findkey(kv
, "DROPWIRELESSFORWARD", buffer
) && strcmp(buffer
, "on") == 0) {
169 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSFORWARD -i %s -j LOG --log-prefix 'DROP_Wirelessforward'", blue_dev
);
170 safe_system(command
);