]>
git.ipfire.org Git - people/pmueller/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 buffer
[STRING_SIZE
];
43 char *index
, *ipaddress
, *macaddress
, *enabled
;
44 struct keyvalue
*kv
= NULL
;
49 /* flush wireless iptables */
50 safe_system("/sbin/iptables --wait -F WIRELESSINPUT > /dev/null 2> /dev/null");
51 safe_system("/sbin/iptables --wait -F WIRELESSFORWARD > /dev/null 2> /dev/null");
53 memset(buffer
, 0, STRING_SIZE
);
55 /* Init the keyvalue structure */
58 /* Read in the current values */
59 if (!readkeyvalues(kv
, CONFIG_ROOT
"/ethernet/settings")) {
60 fprintf(stderr
, "Cannot read ethernet settings\n");
64 /* Read in the firewall values */
65 if (!readkeyvalues(kv
, CONFIG_ROOT
"/optionsfw/settings")) {
66 fprintf(stderr
, "Cannot read optionsfw settings\n");
70 /* Get the BLUE interface details */
71 if (findkey(kv
, "BLUE_DEV", blue_dev
) > 0) {
72 if ((strlen(blue_dev
) > 0) && !VALID_DEVICE(blue_dev
)) {
73 fprintf(stderr
, "Bad BLUE_DEV: %s\n", blue_dev
);
78 if (strlen(blue_dev
) == 0) {
82 if ((fd
= fopen(CONFIG_ROOT
"/wireless/nodrop", "r")))
85 /* register exit handler to ensure the block rule is always present */
88 if (!(fd
= fopen(CONFIG_ROOT
"/wireless/config", "r"))) {
92 /* restrict blue access tp the proxy port */
93 if (findkey(kv
, "DROPPROXY", buffer
) && strcmp(buffer
, "on") == 0) {
94 /* Read the proxy values */
95 if (!readkeyvalues(kv
, CONFIG_ROOT
"/proxy/settings") || !(findkey(kv
, "PROXY_PORT", buffer
))) {
96 fprintf(stderr
, "Cannot read proxy settings\n");
100 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
);
101 safe_system(command
);
102 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
);
103 safe_system(command
);
106 /* not allow blue to acces a samba server running on local fire*/
107 if (findkey(kv
, "DROPSAMBA", buffer
) && strcmp(buffer
, "on") == 0) {
108 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
);
109 safe_system(command
);
110 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
);
111 safe_system(command
);
112 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
);
113 safe_system(command
);
114 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
);
115 safe_system(command
);
118 while (fgets(buffer
, STRING_SIZE
, fd
)) {
119 buffer
[strlen(buffer
) - 1] = 0;
121 index
= strtok(buffer
, ",");
122 ipaddress
= strtok(NULL
, ",");
123 macaddress
= strtok(NULL
, ",");
124 enabled
= strtok(NULL
, ",");
126 if (strcmp(enabled
, "on") == 0) {
127 /* both specified, added security */
128 if ((strlen(macaddress
) == 17) && (VALID_IP_AND_MASK(ipaddress
))) {
129 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
);
130 safe_system(command
);
131 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
);
132 safe_system(command
);
134 /* correctly formed mac address is 17 chars */
135 if (strlen(macaddress
) == 17) {
136 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSINPUT -m mac --mac-source %s -i %s -j RETURN", macaddress
, blue_dev
);
137 safe_system(command
);
138 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSFORWARD -m mac --mac-source %s -i %s -j RETURN", macaddress
, blue_dev
);
139 safe_system(command
);
142 if (VALID_IP_AND_MASK(ipaddress
)) {
143 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSINPUT -s %s -i %s -j RETURN", ipaddress
, blue_dev
);
144 safe_system(command
);
145 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSFORWARD -s %s -i %s -j RETURN", ipaddress
, blue_dev
);
146 safe_system(command
);
152 /* with this rule you can disable the logging of the dropped wireless input packets*/
153 if (findkey(kv
, "DROPWIRELESSINPUT", buffer
) && strcmp(buffer
, "on") == 0) {
154 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSINPUT -i %s -j LOG --log-prefix 'DROP_Wirelessinput'", blue_dev
);
155 safe_system(command
);
158 /* with this rule you can disable the logging of the dropped wireless forward packets*/
159 if (findkey(kv
, "DROPWIRELESSFORWARD", buffer
) && strcmp(buffer
, "on") == 0) {
160 snprintf(command
, STRING_SIZE
-1, "/sbin/iptables --wait -A WIRELESSFORWARD -i %s -j LOG --log-prefix 'DROP_Wirelessforward'", blue_dev
);
161 safe_system(command
);