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#include <assert.h>
#include <string.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <errno.h>
#include "iwkey.h"
#include "wireless.h"
#include "util.h"
static int n_used_keys = 0;
int wep_key_add(struct interface *i, uint8_t w[WEP_KEY_LEN]) {
struct iwreq req;
assert(i);
if (n_used_keys >= n_max_keys) {
fprintf(stderr, "Too many keys added!\n");
return -1;
}
memset(&req, 0, sizeof(req));
strncpy(req.ifr_ifrn.ifrn_name, i->name, IFNAMSIZ);
req.u.encoding.pointer = w;
req.u.encoding.length = WEP_KEY_LEN;
req.u.encoding.flags = key_map[n_used_keys++]+1;
if (ioctl(i->fd, SIOCSIWENCODE, &req) < 0) {
fprintf(stderr, "ioctl(SIOCSIWENCODE): %s\n", strerror(errno));
return -1;
}
return 0;
}
int wep_key_finish(struct interface *i) {
struct iwreq req;
assert(i);
if (n_used_keys) {
uint8_t tmp[WEP_KEY_LEN];
int j;
memset(&req, 0, sizeof(req));
strncpy(req.ifr_ifrn.ifrn_name, i->name, IFNAMSIZ);
req.u.encoding.pointer = tmp;
req.u.encoding.length = WEP_KEY_LEN;
req.u.encoding.flags = (key_map[n_used_keys-1]+1);
if (ioctl(i->fd, SIOCGIWENCODE, &req) < 0) {
fprintf(stderr, "ioctl(SIOCGIWENCODE): %s\n", strerror(errno));
return -1;
}
for (j = n_used_keys; j < n_max_keys; j++) {
memset(&req, 0, sizeof(req));
strncpy(req.ifr_ifrn.ifrn_name, i->name, IFNAMSIZ);
req.u.encoding.pointer = tmp;
req.u.encoding.length = WEP_KEY_LEN;
req.u.encoding.flags = (key_map[j]+1);
if (ioctl(i->fd, SIOCSIWENCODE, &req) < 0) {
fprintf(stderr, "ioctl(SIOCSIWENCODE): %s\n", strerror(errno));
return -1;
}
}
}
memset(&req, 0, sizeof(req));
strncpy(req.ifr_ifrn.ifrn_name, i->name, IFNAMSIZ);
req.u.encoding.pointer = NULL;
req.u.encoding.length = 0;
req.u.encoding.flags = IW_ENCODE_RESTRICTED;
if (ioctl(i->fd, SIOCSIWENCODE, &req) < 0) {
fprintf(stderr, "ioctl(SIOCSIWENCODE): %s\n", strerror(errno));
return -1;
}
n_used_keys = 0;
return 0;
}
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