496 lines
12 KiB
C
496 lines
12 KiB
C
/*
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* Wireless Network Adapter configuration utility
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*
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* Copyright (C) 2005 Felix Fietkau <nbd@vd-s.ath.cx>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <iwlib.h>
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#include <bcmnvram.h>
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#include <shutils.h>
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#include <wlioctl.h>
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/*------------------------------------------------------------------*/
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/*
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* Macro to handle errors when setting WE
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* Print a nice error message and exit...
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* We define them as macro so that "return" do the right thing.
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* The "do {...} while(0)" is a standard trick
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*/
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#define ERR_SET_EXT(rname, request) \
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fprintf(stderr, "Error for wireless request \"%s\" (%X) :\n", \
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rname, request)
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#define ABORT_ARG_NUM(rname, request) \
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do { \
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ERR_SET_EXT(rname, request); \
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fprintf(stderr, " too few arguments.\n"); \
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} while(0)
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#define ABORT_ARG_TYPE(rname, request, arg) \
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do { \
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ERR_SET_EXT(rname, request); \
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fprintf(stderr, " invalid argument \"%s\".\n", arg); \
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} while(0)
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#define ABORT_ARG_SIZE(rname, request, max) \
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do { \
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ERR_SET_EXT(rname, request); \
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fprintf(stderr, " argument too big (max %d)\n", max); \
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} while(0)
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/*------------------------------------------------------------------*/
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/*
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* Wrapper to push some Wireless Parameter in the driver
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* Use standard wrapper and add pretty error message if fail...
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*/
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#define IW_SET_EXT_ERR(skfd, ifname, request, wrq, rname) \
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do { \
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if(iw_set_ext(skfd, ifname, request, wrq) < 0) { \
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ERR_SET_EXT(rname, request); \
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fprintf(stderr, " SET failed on device %-1.16s ; %s.\n", \
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ifname, strerror(errno)); \
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} } while(0)
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/*------------------------------------------------------------------*/
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/*
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* Wrapper to extract some Wireless Parameter out of the driver
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* Use standard wrapper and add pretty error message if fail...
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*/
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#define IW_GET_EXT_ERR(skfd, ifname, request, wrq, rname) \
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do { \
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if(iw_get_ext(skfd, ifname, request, wrq) < 0) { \
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ERR_SET_EXT(rname, request); \
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fprintf(stderr, " GET failed on device %-1.16s ; %s.\n", \
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ifname, strerror(errno)); \
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} } while(0)
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void set_wext_ssid(int skfd, char *ifname);
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char *prefix;
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char buffer[128];
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char *wl_var(char *name)
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{
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strcpy(buffer, prefix);
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strcat(buffer, name);
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}
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int nvram_enabled(char *name)
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{
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return (nvram_match(name, "1") || nvram_match(name, "on") || nvram_match(name, "enabled") || nvram_match(name, "true") || nvram_match(name, "yes") ? 1 : 0);
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}
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int nvram_disabled(char *name)
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{
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return (nvram_match(name, "0") || nvram_match(name, "off") || nvram_match(name, "disabled") || nvram_match(name, "false") || nvram_match(name, "no") ? 1 : 0);
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}
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int bcom_ioctl(int skfd, char *ifname, int cmd, void *buf, int len)
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{
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struct ifreq ifr;
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wl_ioctl_t ioc;
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int ret;
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ioc.cmd = cmd;
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ioc.buf = buf;
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ioc.len = len;
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ifr.ifr_data = (caddr_t) &ioc;
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strncpy(ifr.ifr_name, ifname, IFNAMSIZ);
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ret = ioctl(skfd, SIOCDEVPRIVATE, &ifr);
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return ret;
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}
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int bcom_set_val(int skfd, char *ifname, char *var, void *val, int len)
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{
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char buf[8192];
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int ret;
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if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
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return -1;
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strcpy(buf, var);
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if ((ret = bcom_ioctl(skfd, ifname, WLC_GET_VAR, buf, sizeof(buf))))
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return ret;
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memcpy(val, buf, len);
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return 0;
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}
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int bcom_set_int(int skfd, char *ifname, char *var, int val)
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{
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return bcom_set_val(skfd, ifname, var, &val, sizeof(val));
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}
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void stop_bcom(int skfd, char *ifname)
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{
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int val = 0;
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wlc_ssid_t ssid;
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if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
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return;
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ssid.SSID_len = 0;
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ssid.SSID[0] = 0;
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bcom_ioctl(skfd, ifname, WLC_SET_SSID, &ssid, sizeof(ssid));
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bcom_ioctl(skfd, ifname, WLC_DOWN, NULL, 0);
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}
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void start_bcom(int skfd, char *ifname)
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{
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int val = 0;
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if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
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return;
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bcom_ioctl(skfd, ifname, WLC_UP, &val, sizeof(val));
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set_wext_ssid(skfd, ifname);
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}
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void setup_bcom(int skfd, char *ifname)
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{
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int val = 0;
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char buf[8192];
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char wbuf[80];
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char *v;
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if (bcom_ioctl(skfd, ifname, WLC_GET_MAGIC, &val, sizeof(val)) < 0)
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return;
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stop_bcom(skfd, ifname);
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/* Set Country */
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strncpy(buf, nvram_safe_get(wl_var("country_code")), 4);
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buf[3] = 0;
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bcom_ioctl(skfd, ifname, 273, buf, 4);
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/* Set up afterburner */
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val = ABO_AUTO;
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if (nvram_enabled(wl_var("afterburner")))
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val = ABO_ON;
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if (nvram_disabled(wl_var("afterburner")))
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val = ABO_OFF;
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bcom_set_val(skfd, ifname, "afterburner_override", &val, sizeof(val));
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/* Set other options */
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if (v = nvram_get(wl_var("lazywds"))) {
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val = atoi(v);
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bcom_ioctl(skfd, ifname, WLC_SET_LAZYWDS, &val, sizeof(val));
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}
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if (v = nvram_get(wl_var("frag"))) {
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val = atoi(v);
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bcom_ioctl(skfd, ifname, WLC_SET_FRAG, &val, sizeof(val));
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}
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if (v = nvram_get(wl_var("dtim"))) {
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val = atoi(v);
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bcom_ioctl(skfd, ifname, WLC_SET_DTIMPRD, &val, sizeof(val));
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}
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if (v = nvram_get(wl_var("bcn"))) {
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val = atoi(v);
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bcom_ioctl(skfd, ifname, WLC_SET_BCNPRD, &val, sizeof(val));
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}
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if (v = nvram_get(wl_var("rts"))) {
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val = atoi(v);
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bcom_ioctl(skfd, ifname, WLC_SET_RTS, &val, sizeof(val));
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}
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if (v = nvram_get(wl_var("antdiv"))) {
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val = atoi(v);
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bcom_ioctl(skfd, ifname, WLC_SET_ANTDIV, &val, sizeof(val));
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}
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if (v = nvram_get(wl_var("txant"))) {
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val = atoi(v);
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bcom_ioctl(skfd, ifname, WLC_SET_TXANT, &val, sizeof(val));
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}
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val = nvram_enabled(wl_var("closed"));
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bcom_ioctl(skfd, ifname, WLC_SET_CLOSED, &val, sizeof(val));
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val = nvram_enabled(wl_var("ap_isolate"));
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bcom_set_int(skfd, ifname, "ap_isolate", val);
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val = nvram_enabled(wl_var("frameburst"));
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bcom_ioctl(skfd, ifname, WLC_SET_FAKEFRAG, &val, sizeof(val));
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/* Set up MAC list */
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if (nvram_match(wl_var("macmode"), "allow"))
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val = WLC_MACMODE_ALLOW;
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else if (nvram_match(wl_var("macmode"), "deny"))
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val = WLC_MACMODE_DENY;
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else
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val = WLC_MACMODE_DISABLED;
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if ((val != WLC_MACMODE_DISABLED) && (v = nvram_get(wl_var("maclist")))) {
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struct maclist *mac_list;
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struct ether_addr *addr;
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char *next;
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memset(buf, 0, 8192);
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mac_list = (struct maclist *) buf;
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addr = mac_list->ea;
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foreach(wbuf, v, next) {
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if (ether_atoe(wbuf, addr->ether_addr_octet)) {
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mac_list->count++;
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addr++;
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}
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}
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bcom_ioctl(skfd, ifname, WLC_SET_MACLIST, buf, sizeof(buf));
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} else {
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val = WLC_MACMODE_DISABLED;
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}
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bcom_ioctl(skfd, ifname, WLC_SET_MACMODE, &val, sizeof(val));
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if (v = nvram_get(wl_var("wds"))) {
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struct maclist *wdslist = (struct maclist *) buf;
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struct ether_addr *addr = wdslist->ea;
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char *next;
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memset(buf, 0, 8192);
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foreach(wbuf, v, next) {
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if (ether_atoe(wbuf, addr->ether_addr_octet)) {
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wdslist->count++;
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addr++;
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}
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}
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bcom_ioctl(skfd, ifname, WLC_SET_WDSLIST, buf, sizeof(buf));
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}
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/* Set up G mode */
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bcom_ioctl(skfd, ifname, WLC_GET_PHYTYPE, &val, sizeof(val));
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if (val == 2) {
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int override = WLC_G_PROTECTION_OFF;
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int control = WLC_G_PROTECTION_CTL_OFF;
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if (v = nvram_get(wl_var("gmode")))
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val = atoi(v);
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else
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val = 1;
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if (val > 5)
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val = 1;
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bcom_ioctl(skfd, ifname, WLC_SET_GMODE, &val, sizeof(val));
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if (nvram_match(wl_var("gmode_protection"), "auto")) {
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override = WLC_G_PROTECTION_AUTO;
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control = WLC_G_PROTECTION_CTL_OVERLAP;
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}
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if (nvram_enabled(wl_var("gmode_protection"))) {
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override = WLC_G_PROTECTION_ON;
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control = WLC_G_PROTECTION_CTL_OVERLAP;
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}
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bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_CONTROL, &override, sizeof(control));
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bcom_ioctl(skfd, ifname, WLC_SET_GMODE_PROTECTION_OVERRIDE, &override, sizeof(override));
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if (val = 0) {
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if (nvram_match(wl_var("plcphdr"), "long"))
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val = WLC_PLCP_AUTO;
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else
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val = WLC_PLCP_SHORT;
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bcom_ioctl(skfd, ifname, WLC_SET_PLCPHDR, &val, sizeof(val));
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}
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}
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start_bcom(skfd, ifname);
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if (!(v = nvram_get(wl_var("akm"))))
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v = nvram_safe_get(wl_var("auth_mode"));
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if (strstr(v, "wpa") || strstr(v, "psk")) {
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/* Set up WPA */
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if (nvram_match(wl_var("crypto"), "tkip"))
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val = TKIP_ENABLED;
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else if (nvram_match(wl_var("crypto"), "aes"))
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val = AES_ENABLED;
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else if (nvram_match(wl_var("crypto"), "tkip+aes"))
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val = TKIP_ENABLED | AES_ENABLED;
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else
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val = 0;
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bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
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if (val && strstr(v, "psk")) {
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v = nvram_safe_get(wl_var("wpa_psk"));
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if ((strlen(v) >= 8) && (strlen(v) < 63)) {
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val = 4;
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bcom_ioctl(skfd, ifname, WLC_SET_WPA_AUTH, &val, sizeof(val));
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bcom_ioctl(skfd, ifname, WLC_GET_AP, &val, sizeof(val));
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if (!val) {
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/* Enable in-driver WPA supplicant */
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wsec_pmk_t pmk;
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pmk.key_len = (unsigned short) strlen(v);
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pmk.flags = WSEC_PASSPHRASE;
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strcpy(pmk.key, v);
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bcom_ioctl(skfd, ifname, WLC_SET_WSEC_PMK, &pmk, sizeof(pmk));
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bcom_set_int(skfd, ifname, "sup_wpa", 1);
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}
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}
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} else {
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val = 1;
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bcom_ioctl(skfd, ifname, WLC_SET_EAP_RESTRICT, &val, sizeof(val));
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}
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} else {
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val = 0;
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bcom_ioctl(skfd, ifname, WLC_SET_WSEC, &val, sizeof(val));
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bcom_ioctl(skfd, ifname, WLC_SET_WPA_AUTH, &val, sizeof(val));
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}
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}
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void set_wext_ssid(int skfd, char *ifname)
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{
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char *buffer;
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struct iwreq wrq;
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if (buffer = nvram_get(wl_var("ssid"))) {
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if (strlen(buffer) > IW_ESSID_MAX_SIZE) {
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ABORT_ARG_SIZE("Set ESSID", SIOCSIWESSID, IW_ESSID_MAX_SIZE);
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} else {
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char essid[IW_ESSID_MAX_SIZE + 1];
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wrq.u.essid.flags = 1;
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strcpy(essid, buffer);
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wrq.u.essid.pointer = (caddr_t) essid;
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wrq.u.essid.length = strlen(essid) + 1;
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IW_SET_EXT_ERR(skfd, ifname, SIOCSIWESSID, &wrq, "Set ESSID");
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}
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}
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}
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void setup_wext_wep(int skfd, char *ifname)
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{
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int i, keylen;
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struct iwreq wrq;
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char keystr[5];
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char *keyval;
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unsigned char key[IW_ENCODING_TOKEN_MAX];
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strcpy(keystr, "key1");
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for (i = 1; i <= 4; i++) {
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if (keyval = nvram_get(wl_var(keystr))) {
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keylen = iw_in_key(keyval, key);
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if (keylen > 0) {
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wrq.u.data.length = keylen;
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wrq.u.data.pointer = (caddr_t) key;
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wrq.u.data.flags = i;
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IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
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}
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}
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keystr[3]++;
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}
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i = atoi(nvram_safe_get(wl_var("key")));
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if (i > 0 && i < 4) {
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wrq.u.data.flags = i | IW_ENCODE_RESTRICTED;
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IW_SET_EXT_ERR(skfd, ifname, SIOCSIWENCODE, &wrq, "Set Encode");
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}
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}
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void set_wext_mode(skfd, ifname)
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{
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struct iwreq wrq;
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int ap = 0, infra = 0, wet = 0;
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/* Set operation mode */
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ap = !nvram_match(wl_var("mode"), "sta");
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infra = !nvram_disabled(wl_var("infra"));
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wet = nvram_enabled(wl_var("wet"));
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wrq.u.mode = (!infra ? IW_MODE_ADHOC : (ap ? IW_MODE_MASTER : (wet ? IW_MODE_REPEAT : IW_MODE_INFRA)));
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IW_SET_EXT_ERR(skfd, ifname, SIOCSIWMODE, &wrq, "Set Mode");
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}
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void setup_wext(int skfd, char *ifname)
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{
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char *buffer;
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struct iwreq wrq;
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/* Set channel */
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int channel = atoi(nvram_safe_get(wl_var("channel")));
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wrq.u.freq.m = -1;
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wrq.u.freq.e = 0;
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wrq.u.freq.flags = 0;
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if (channel > 0) {
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wrq.u.freq.flags = IW_FREQ_FIXED;
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wrq.u.freq.m = channel;
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IW_SET_EXT_ERR(skfd, ifname, SIOCSIWFREQ, &wrq, "Set Frequency");
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}
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/* Disable radio if wlX_radio is set and not enabled */
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wrq.u.txpower.disabled = nvram_disabled(wl_var("radio"));
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wrq.u.txpower.value = -1;
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wrq.u.txpower.fixed = 1;
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wrq.u.txpower.flags = IW_TXPOW_DBM;
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IW_SET_EXT_ERR(skfd, ifname, SIOCSIWTXPOW, &wrq, "Set Tx Power");
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/* Set up WEP */
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if (nvram_enabled(wl_var("wep")))
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setup_wext_wep(skfd, ifname);
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/* Set ESSID */
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set_wext_ssid(skfd, ifname);
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}
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static int setup_interfaces(int skfd, char *ifname, char *args[], int count)
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{
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struct iwreq wrq;
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int rc;
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/* Avoid "Unused parameter" warning */
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args = args; count = count;
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if(iw_get_ext(skfd, ifname, SIOCGIWNAME, &wrq) < 0)
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return 0;
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stop_bcom(skfd, ifname);
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set_wext_mode(skfd, ifname);
|
|
setup_bcom(skfd, ifname);
|
|
setup_wext(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;
|
|
}
|