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wifipineapple-openwrt/package/wificonf/wificonf.c

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/*
* Wireless Network Adapter configuration utility
*
* Copyright (C) 2005 Felix Fietkau <nbd@vd-s.ath.cx>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <stdio.h>
#include <unistd.h>
#include <iwlib.h>
#include <bcmnvram.h>
#include <shutils.h>
#include <wlioctl.h>
/*------------------------------------------------------------------*/
/*
* Macro to handle errors when setting WE
* Print a nice error message and exit...
* We define them as macro so that "return" do the right thing.
* The "do {...} while(0)" is a standard trick
*/
#define ERR_SET_EXT(rname, request) \
fprintf(stderr, "Error for wireless request \"%s\" (%X) :\n", \
rname, request)
#define ABORT_ARG_NUM(rname, request) \
do { \
ERR_SET_EXT(rname, request); \
fprintf(stderr, " too few arguments.\n"); \
return; \
} while(0)
#define ABORT_ARG_TYPE(rname, request, arg) \
do { \
ERR_SET_EXT(rname, request); \
fprintf(stderr, " invalid argument \"%s\".\n", arg); \
return; \
} while(0)
#define ABORT_ARG_SIZE(rname, request, max) \
do { \
ERR_SET_EXT(rname, request); \
fprintf(stderr, " argument too big (max %d)\n", max); \
return; \
} while(0)
/*------------------------------------------------------------------*/
/*
* Wrapper to push some Wireless Parameter in the driver
* Use standard wrapper and add pretty error message if fail...
*/
#define IW_SET_EXT_ERR(skfd, ifname, request, wrq, rname) \
do { \
if(iw_set_ext(skfd, ifname, request, wrq) < 0) { \
ERR_SET_EXT(rname, request); \
fprintf(stderr, " SET failed on device %-1.16s ; %s.\n", \
ifname, strerror(errno)); \
return; \
} } while(0)
/*------------------------------------------------------------------*/
/*
* Wrapper to extract some Wireless Parameter out of the driver
* Use standard wrapper and add pretty error message if fail...
*/
#define IW_GET_EXT_ERR(skfd, ifname, request, wrq, rname) \
do { \
if(iw_get_ext(skfd, ifname, request, wrq) < 0) { \
ERR_SET_EXT(rname, request); \
fprintf(stderr, " GET failed on device %-1.16s ; %s.\n", \
ifname, strerror(errno)); \
return; \
} } while(0)
char *prefix;
char buffer[128];
char *wl_var(char *name)
{
strcpy(buffer, prefix);
strcat(buffer, name);
}
int nvram_enabled(char *name)
{
return (nvram_match(name, "1") || nvram_match(name, "on") || nvram_match(name, "enabled") || nvram_match(name, "true") || nvram_match(name, "yes") ? 1 : 0);
}
int nvram_disabled(char *name)
{
return (nvram_match(name, "0") || nvram_match(name, "off") || nvram_match(name, "disabled") || nvram_match(name, "false") || nvram_match(name, "no") ? 1 : 0);
}
int bcom_ioctl(int skfd, char *ifname, int cmd, void *buf, int len)
{
struct ifreq ifr;
wl_ioctl_t ioc;
int ret;
ioc.cmd = cmd;
ioc.buf = buf;
ioc.len = len;
ifr.ifr_data = (caddr_t) &ioc;
strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
ret = ioctl(skfd, SIOCDEVPRIVATE, &ifr);
if (ret < 0)
fprintf(stderr, "bcom_ioctl [cmd=%d, buf=%08x, len=%d] failed: %d\n", cmd, buf, len, ret);
return ret;
}
int bcom_set_val(int skfd, char *ifname, char *var, void *val, int len)
{
char buf[8192];
int ret;
if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
return -1;
strcpy(buf, var);
if ((ret = bcom_ioctl(skfd, ifname, WLC_GET_VAR, buf, sizeof(buf))))
return ret;
memcpy(val, buf, len);
return 0;
}
int bcom_set_int(int skfd, char *ifname, char *var, int val)
{
return bcom_set_val(skfd, ifname, var, &val, sizeof(val));
}
void setup_bcom(int skfd, char *ifname)
{
int val = 0;
char buf[8192];
char wbuf[80];
char *v;
if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
return;
bcom_ioctl(skfd, ifname, WLC_DOWN, NULL, 0);
/* Set up WPA */
if (nvram_match(wl_var("crypto"), "tkip"))
val = TKIP_ENABLED;
else if (nvram_match(wl_var("crypto"), "aes"))
val = AES_ENABLED;
else if (nvram_match(wl_var("crypto"), "tkip+aes"))
val = TKIP_ENABLED | AES_ENABLED;
else
val = 0;
bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
if (val && nvram_get(wl_var("wpa_psk"))) {
val = 1;
bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
}
/* Set up afterburner */
val = ABO_AUTO;
if (nvram_enabled(wl_var("afterburner")))
val = ABO_ON;
if (nvram_disabled(wl_var("afterburner")))
val = ABO_OFF;
bcom_set_val(skfd, ifname, "afterburner_override", &val, sizeof(val));
/* Set other options */
if (v = nvram_get(wl_var("lazywds"))) {
val = atoi(v);
bcom_ioctl(skfd, ifname, WLC_SET_LAZYWDS, &val, sizeof(val));
}
if (v = nvram_get(wl_var("frag"))) {
val = atoi(v);
bcom_ioctl(skfd, ifname, WLC_SET_FRAG, &val, sizeof(val));
}
if (v = nvram_get(wl_var("dtim"))) {
val = atoi(v);
bcom_ioctl(skfd, ifname, WLC_SET_DTIMPRD, &val, sizeof(val));
}
if (v = nvram_get(wl_var("bcn"))) {
val = atoi(v);
bcom_ioctl(skfd, ifname, WLC_SET_BCNPRD, &val, sizeof(val));
}
if (v = nvram_get(wl_var("rts"))) {
val = atoi(v);
bcom_ioctl(skfd, ifname, WLC_SET_RTS, &val, sizeof(val));
}
if (v = nvram_get(wl_var("antdiv"))) {
val = atoi(v);
bcom_ioctl(skfd, ifname, WLC_SET_ANTDIV, &val, sizeof(val));
}
if (v = nvram_get(wl_var("txant"))) {
val = atoi(v);
bcom_ioctl(skfd, ifname, WLC_SET_TXANT, &val, sizeof(val));
}
val = nvram_enabled(wl_var("closed"));
bcom_ioctl(skfd, ifname, WLC_SET_CLOSED, &val, sizeof(val));
val = nvram_enabled(wl_var("ap_isolate"));
bcom_set_int(skfd, ifname, "ap_isolate", val);
val = nvram_enabled(wl_var("frameburst"));
bcom_ioctl(skfd, ifname, WLC_SET_FAKEFRAG, &val, sizeof(val));
/* Set up MAC list */
if (nvram_match(wl_var("macmode"), "allow"))
val = WLC_MACMODE_ALLOW;
else if (nvram_match(wl_var("macmode"), "deny"))
val = WLC_MACMODE_DENY;
else
val = WLC_MACMODE_DISABLED;
if ((val != WLC_MACMODE_DISABLED) && (v = nvram_get(wl_var("maclist")))) {
struct maclist *mac_list;
struct ether_addr *addr;
char *next;
memset(buf, 0, 8192);
mac_list = (struct maclist *) buf;
addr = mac_list->ea;
foreach(wbuf, v, next) {
if (ether_atoe(wbuf, addr->ether_addr_octet)) {
mac_list->count++;
addr++;
}
}
bcom_ioctl(skfd, ifname, WLC_SET_MACLIST, buf, sizeof(buf));
} else {
val = WLC_MACMODE_DISABLED;
}
bcom_ioctl(skfd, ifname, WLC_SET_MACMODE, &val, sizeof(val));
if (v = nvram_get(wl_var("wds"))) {
struct maclist *wdslist = (struct maclist *) buf;
struct ether_addr *addr = wdslist->ea;
char *next;
memset(buf, 0, 8192);
foreach(wbuf, v, next) {
if (ether_atoe(wbuf, addr->ether_addr_octet)) {
wdslist->count++;
addr++;
}
}
bcom_ioctl(skfd, ifname, WLC_SET_WDSLIST, buf, sizeof(buf));
}
/* Set up G mode */
bcom_ioctl(skfd, ifname, WLC_GET_PHYTYPE, &val, sizeof(val));
if (val == 2) {
int override = WLC_G_PROTECTION_OFF;
int control = WLC_G_PROTECTION_CTL_OFF;
val = atoi(nvram_safe_get(wl_var("gmode")));
if (val > 5)
val = 1;
bcom_ioctl(skfd, ifname, WLC_SET_GMODE, &val, sizeof(val));
if (nvram_match(wl_var("gmode_protection"), "auto")) {
override = WLC_G_PROTECTION_AUTO;
control = WLC_G_PROTECTION_CTL_OVERLAP;
}
if (nvram_enabled(wl_var("gmode_protection"))) {
override = WLC_G_PROTECTION_ON;
control = WLC_G_PROTECTION_CTL_OVERLAP;
}
bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_CONTROL, &override, sizeof(control));
bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_OVERRIDE, &override, sizeof(override));
}
}
void set_wext_ssid(int skfd, char *ifname)
{
char *buffer;
struct iwreq wrq;
if (buffer = nvram_get(wl_var("ssid"))) {
if (strlen(buffer) > IW_ESSID_MAX_SIZE) {
ABORT_ARG_SIZE("Set ESSID", SIOCSIWESSID, IW_ESSID_MAX_SIZE);
} else {
char essid[IW_ESSID_MAX_SIZE + 1];
wrq.u.essid.flags = 1;
strcpy(essid, buffer);
wrq.u.essid.pointer = (caddr_t) essid;
wrq.u.essid.length = strlen(essid) + 1;
IW_SET_EXT_ERR(skfd, ifname, SIOCSIWESSID, &wrq, "Set ESSID");
}
}
}
void start_bcom(int skfd, char *ifname)
{
int val = 0;
if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
return;
bcom_ioctl(skfd, ifname, WLC_UP, &val, sizeof(val));
/* Need to re-set SSID after WLC_UP */
set_wext_ssid(skfd, ifname);
}
void setup_wext_wep(int skfd, char *ifname)
{
int i, keylen;
struct iwreq wrq;
char keystr[5];
char *keyval;
unsigned char key[IW_ENCODING_TOKEN_MAX];
strcpy(keystr, "key1");
for (i = 1; i <= 4; i++) {
if (keyval = nvram_get(wl_var(keystr))) {
keylen = iw_in_key(keyval, key);
if (keylen > 0) {
wrq.u.data.length = keylen;
wrq.u.data.pointer = (caddr_t) key;
wrq.u.data.flags = i;
IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
}
}
keystr[3]++;
}
i = atoi(nvram_safe_get(wl_var("key")));
if (i > 0 && i < 4) {
wrq.u.data.flags = i | IW_ENCODE_RESTRICTED;
IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
}
}
void setup_wext(int skfd, char *ifname)
{
char *buffer;
struct iwreq wrq;
/* Set ESSID */
set_wext_ssid(skfd, ifname);
/* Set channel */
int channel = atoi(nvram_safe_get(wl_var("channel")));
wrq.u.freq.m = -1;
wrq.u.freq.e = 0;
wrq.u.freq.flags = 0;
if (channel > 0) {
wrq.u.freq.flags = IW_FREQ_FIXED;
wrq.u.freq.m = channel;
IW_SET_EXT_ERR(skfd, ifname, SIOCSIWFREQ, &wrq, "Set Frequency");
}
/* Set operation mode */
int ap = 0, infra = 0, wet = 0;
ap = !nvram_match(wl_var("mode"), "sta");
infra = !nvram_disabled(wl_var("infra"));
wet = nvram_enabled(wl_var("wet"));
wrq.u.mode = (!infra ? IW_MODE_ADHOC : (ap ? IW_MODE_MASTER : (wet ? IW_MODE_REPEAT : IW_MODE_INFRA)));
IW_SET_EXT_ERR(skfd, ifname, SIOCSIWMODE, &wrq, "Set Mode");
/* Disable radio if wlX_radio is set and not enabled */
wrq.u.txpower.disabled = nvram_disabled(wl_var("radio"));
wrq.u.txpower.value = -1;
wrq.u.txpower.fixed = 1;
wrq.u.txpower.flags = IW_TXPOW_MWATT;
IW_SET_EXT_ERR(skfd, ifname, SIOCSIWTXPOW, &wrq, "Set Tx Power");
/* Set up WEP */
if (nvram_enabled(wl_var("wep")))
setup_wext_wep(skfd, ifname);
}
static int setup_interfaces(int skfd, char *ifname, char *args[], int count)
{
struct iwreq wrq;
int rc;
/* Avoid "Unused parameter" warning */
args = args; count = count;
if(iw_get_ext(skfd, ifname, SIOCGIWNAME, &wrq) < 0)
return 0;
setup_bcom(skfd, ifname);
setup_wext(skfd, ifname);
start_bcom(skfd, ifname);
prefix[2]++;
}
int main(int argc, char **argv)
{
int skfd;
if((skfd = iw_sockets_open()) < 0) {
perror("socket");
exit(-1);
}
prefix = strdup("wl0_");
iw_enum_devices(skfd, &setup_interfaces, NULL, 0);
return 0;
}
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