diff options
Diffstat (limited to 'package/wlcompat/src')
| -rw-r--r-- | package/wlcompat/src/wlcompat.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/package/wlcompat/src/wlcompat.c b/package/wlcompat/src/wlcompat.c index 1540a2116..23b0d50a8 100644 --- a/package/wlcompat/src/wlcompat.c +++ b/package/wlcompat/src/wlcompat.c @@ -24,10 +24,12 @@ #include <linux/config.h> #include <linux/module.h> +#include <linux/moduleparam.h> #include <linux/init.h> #include <linux/if_arp.h> #include <asm/uaccess.h> #include <linux/wireless.h> +#include <linux/timer.h> #include <net/iw_handler.h> #include <wlioctl.h> @@ -35,6 +37,7 @@ static struct net_device *dev; static unsigned short bss_force; static struct iw_statistics wstats; +static int random = 1; char buf[WLC_IOCTL_MAXLEN]; /* The frequency of each channel in MHz */ @@ -44,6 +47,8 @@ const long channel_frequency[] = { }; #define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) ) +#define RNG_POLL_FREQ 20 + typedef struct internal_wsec_key { uint8 index; // 0x00 uint8 unknown_1; // 0x01 @@ -977,6 +982,25 @@ static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) { return ret; } +static struct timer_list rng_timer; + +static void rng_timer_tick(unsigned long n) +{ + struct net_device *dev = (struct net_device *) n; + u16 data[4]; + int i, ret; + + ret = 0; + for (i = 0; i < 3; i++) { + ret |= wl_get_val(dev, "rand", &data[i], sizeof(u16)); + } + if (!ret) + batch_entropy_store(*((u32 *) &data[0]), *((u32 *) &data[2]), (jiffies % 255)); + + mod_timer(&rng_timer, jiffies + (HZ/RNG_POLL_FREQ)); +} + + static int __init wlcompat_init() { int found = 0, i; @@ -999,6 +1023,14 @@ static int __init wlcompat_init() dev->do_ioctl = new_ioctl; dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def; dev->get_wireless_stats = wlcompat_get_wireless_stats; + + if (random) { + init_timer(&rng_timer); + rng_timer.function = rng_timer_tick; + rng_timer.data = (unsigned long) dev; + rng_timer_tick((unsigned long) dev); + } + #ifdef DEBUG printk("broadcom driver private data: 0x%08x\n", dev->priv); #endif @@ -1007,6 +1039,8 @@ static int __init wlcompat_init() static void __exit wlcompat_exit() { + if (random) + del_timer(&rng_timer); dev->get_wireless_stats = NULL; dev->wireless_handlers = NULL; dev->do_ioctl = old_ioctl; @@ -1017,5 +1051,6 @@ EXPORT_NO_SYMBOLS; MODULE_AUTHOR("openwrt.org"); MODULE_LICENSE("GPL"); +module_param(random, int, 0); module_init(wlcompat_init); module_exit(wlcompat_exit); |