Initial commit

git-svn-id: file:///home/lennart/svn/public/aeswepd/trunk@3 022f378f-78c4-0310-b860-d162c87e6274

1 files changed, 87 insertions, 0 deletions

diff --git a/src/iwkey.c b/src/iwkey.c
new file mode 100644
index 0000000..3875594
--- /dev/null
+++ b/src/iwkey.c
@@ -0,0 +1,87 @@
+#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;
+}