mac80211: free up 2 bytes in skb->cb
[safe/jmp/linux-2.6] / drivers / net / wireless / rt2x00 / rt2x00debug.c
index bd92cb8..5cf4c85 100644 (file)
 
 #define MAX_LINE_LENGTH 64
 
+struct rt2x00debug_crypto {
+       unsigned long success;
+       unsigned long icv_error;
+       unsigned long mic_error;
+       unsigned long key_error;
+};
+
 struct rt2x00debug_intf {
        /*
         * Pointer to driver structure where
@@ -63,6 +70,7 @@ struct rt2x00debug_intf {
         *   - queue folder
         *     - frame dump file
         *     - queue stats file
+        *     - crypto stats file
         */
        struct dentry *driver_folder;
        struct dentry *driver_entry;
@@ -80,6 +88,7 @@ struct rt2x00debug_intf {
        struct dentry *queue_folder;
        struct dentry *queue_frame_dump_entry;
        struct dentry *queue_stats_entry;
+       struct dentry *crypto_stats_entry;
 
        /*
         * The frame dump file only allows a single reader,
@@ -98,6 +107,12 @@ struct rt2x00debug_intf {
        wait_queue_head_t frame_dump_waitqueue;
 
        /*
+        * HW crypto statistics.
+        * All statistics are stored seperately per cipher type.
+        */
+       struct rt2x00debug_crypto crypto_stats[CIPHER_MAX];
+
+       /*
         * Driver and chipset files will use a data buffer
         * that has been created in advance. This will simplify
         * the code since we can use the debugfs functions.
@@ -114,6 +129,25 @@ struct rt2x00debug_intf {
        unsigned int offset_rf;
 };
 
+void rt2x00debug_update_crypto(struct rt2x00_dev *rt2x00dev,
+                              enum cipher cipher, enum rx_crypto status)
+{
+       struct rt2x00debug_intf *intf = rt2x00dev->debugfs_intf;
+
+       if (cipher == CIPHER_TKIP_NO_MIC)
+               cipher = CIPHER_TKIP;
+       if (cipher == CIPHER_NONE || cipher > CIPHER_MAX)
+               return;
+
+       /* Remove CIPHER_NONE index */
+       cipher--;
+
+       intf->crypto_stats[cipher].success += (status == RX_CRYPTO_SUCCESS);
+       intf->crypto_stats[cipher].icv_error += (status == RX_CRYPTO_FAIL_ICV);
+       intf->crypto_stats[cipher].mic_error += (status == RX_CRYPTO_FAIL_MIC);
+       intf->crypto_stats[cipher].key_error += (status == RX_CRYPTO_FAIL_KEY);
+}
+
 void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
                            enum rt2x00_dump_type type, struct sk_buff *skb)
 {
@@ -133,7 +167,7 @@ void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
                return;
        }
 
-       skbcopy = alloc_skb(sizeof(*dump_hdr) + desc->desc_len + desc->data_len,
+       skbcopy = alloc_skb(sizeof(*dump_hdr) + desc->desc_len + skb->len,
                            GFP_ATOMIC);
        if (!skbcopy) {
                DEBUG(rt2x00dev, "Failed to copy skb for dump.\n");
@@ -144,7 +178,7 @@ void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
        dump_hdr->version = cpu_to_le32(DUMP_HEADER_VERSION);
        dump_hdr->header_length = cpu_to_le32(sizeof(*dump_hdr));
        dump_hdr->desc_length = cpu_to_le32(desc->desc_len);
-       dump_hdr->data_length = cpu_to_le32(desc->data_len);
+       dump_hdr->data_length = cpu_to_le32(skb->len);
        dump_hdr->chip_rt = cpu_to_le16(rt2x00dev->chip.rt);
        dump_hdr->chip_rf = cpu_to_le16(rt2x00dev->chip.rf);
        dump_hdr->chip_rev = cpu_to_le32(rt2x00dev->chip.rev);
@@ -155,7 +189,7 @@ void rt2x00debug_dump_frame(struct rt2x00_dev *rt2x00dev,
        dump_hdr->timestamp_usec = cpu_to_le32(timestamp.tv_usec);
 
        memcpy(skb_put(skbcopy, desc->desc_len), desc->desc, desc->desc_len);
-       memcpy(skb_put(skbcopy, desc->data_len), desc->data, desc->data_len);
+       memcpy(skb_put(skbcopy, skb->len), skb->data, skb->len);
 
        skb_queue_tail(&intf->frame_dump_skbqueue, skbcopy);
        wake_up_interruptible(&intf->frame_dump_waitqueue);
@@ -327,6 +361,59 @@ static const struct file_operations rt2x00debug_fop_queue_stats = {
        .release        = rt2x00debug_file_release,
 };
 
+#ifdef CONFIG_RT2X00_LIB_CRYPTO
+static ssize_t rt2x00debug_read_crypto_stats(struct file *file,
+                                            char __user *buf,
+                                            size_t length,
+                                            loff_t *offset)
+{
+       struct rt2x00debug_intf *intf = file->private_data;
+       char *name[] = { "WEP64", "WEP128", "TKIP", "AES" };
+       char *data;
+       char *temp;
+       size_t size;
+       unsigned int i;
+
+       if (*offset)
+               return 0;
+
+       data = kzalloc((1 + CIPHER_MAX)* MAX_LINE_LENGTH, GFP_KERNEL);
+       if (!data)
+               return -ENOMEM;
+
+       temp = data;
+       temp += sprintf(data, "cipher\tsuccess\ticv err\tmic err\tkey err\n");
+
+       for (i = 0; i < CIPHER_MAX; i++) {
+               temp += sprintf(temp, "%s\t%lu\t%lu\t%lu\t%lu\n", name[i],
+                               intf->crypto_stats[i].success,
+                               intf->crypto_stats[i].icv_error,
+                               intf->crypto_stats[i].mic_error,
+                               intf->crypto_stats[i].key_error);
+       }
+
+       size = strlen(data);
+       size = min(size, length);
+
+       if (copy_to_user(buf, data, size)) {
+               kfree(data);
+               return -EFAULT;
+       }
+
+       kfree(data);
+
+       *offset += size;
+       return size;
+}
+
+static const struct file_operations rt2x00debug_fop_crypto_stats = {
+       .owner          = THIS_MODULE,
+       .read           = rt2x00debug_read_crypto_stats,
+       .open           = rt2x00debug_file_open,
+       .release        = rt2x00debug_file_release,
+};
+#endif
+
 #define RT2X00DEBUGFS_OPS_READ(__name, __format, __type)       \
 static ssize_t rt2x00debug_read_##__name(struct file *file,    \
                                         char __user *buf,      \
@@ -372,9 +459,6 @@ static ssize_t rt2x00debug_write_##__name(struct file *file,        \
        if (*offset)                                            \
                return 0;                                       \
                                                                \
-       if (!capable(CAP_NET_ADMIN))                            \
-               return -EPERM;                                  \
-                                                               \
        if (intf->offset_##__name >= debug->__name.word_count)  \
                return -EINVAL;                                 \
                                                                \
@@ -454,7 +538,7 @@ static struct dentry *rt2x00debug_create_file_driver(const char *name,
        data += sprintf(data, "compiled: %s %s\n", __DATE__, __TIME__);
        blob->size = strlen(blob->data);
 
-       return debugfs_create_blob(name, S_IRUGO, intf->driver_folder, blob);
+       return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob);
 }
 
 static struct dentry *rt2x00debug_create_file_chipset(const char *name,
@@ -482,7 +566,7 @@ static struct dentry *rt2x00debug_create_file_chipset(const char *name,
        data += sprintf(data, "rf length: %d\n", debug->rf.word_count);
        blob->size = strlen(blob->data);
 
-       return debugfs_create_blob(name, S_IRUGO, intf->driver_folder, blob);
+       return debugfs_create_blob(name, S_IRUSR, intf->driver_folder, blob);
 }
 
 void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
@@ -517,7 +601,7 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
        if (IS_ERR(intf->chipset_entry))
                goto exit;
 
-       intf->dev_flags = debugfs_create_file("dev_flags", S_IRUGO,
+       intf->dev_flags = debugfs_create_file("dev_flags", S_IRUSR,
                                              intf->driver_folder, intf,
                                              &rt2x00debug_fop_dev_flags);
        if (IS_ERR(intf->dev_flags))
@@ -532,7 +616,7 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
 ({                                                             \
        (__intf)->__name##_off_entry =                          \
            debugfs_create_u32(__stringify(__name) "_offset",   \
-                              S_IRUGO | S_IWUSR,               \
+                              S_IRUSR | S_IWUSR,               \
                               (__intf)->register_folder,       \
                               &(__intf)->offset_##__name);     \
        if (IS_ERR((__intf)->__name##_off_entry))               \
@@ -540,7 +624,7 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
                                                                \
        (__intf)->__name##_val_entry =                          \
            debugfs_create_file(__stringify(__name) "_value",   \
-                               S_IRUGO | S_IWUSR,              \
+                               S_IRUSR | S_IWUSR,              \
                                (__intf)->register_folder,      \
                                (__intf), &rt2x00debug_fop_##__name);\
        if (IS_ERR((__intf)->__name##_val_entry))               \
@@ -560,7 +644,7 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
                goto exit;
 
        intf->queue_frame_dump_entry =
-           debugfs_create_file("dump", S_IRUGO, intf->queue_folder,
+           debugfs_create_file("dump", S_IRUSR, intf->queue_folder,
                                intf, &rt2x00debug_fop_queue_dump);
        if (IS_ERR(intf->queue_frame_dump_entry))
                goto exit;
@@ -569,9 +653,16 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
        init_waitqueue_head(&intf->frame_dump_waitqueue);
 
        intf->queue_stats_entry =
-           debugfs_create_file("queue", S_IRUGO, intf->queue_folder,
+           debugfs_create_file("queue", S_IRUSR, intf->queue_folder,
                                intf, &rt2x00debug_fop_queue_stats);
 
+#ifdef CONFIG_RT2X00_LIB_CRYPTO
+       if (test_bit(CONFIG_SUPPORT_HW_CRYPTO, &rt2x00dev->flags))
+               intf->crypto_stats_entry =
+                   debugfs_create_file("crypto", S_IRUGO, intf->queue_folder,
+                                       intf, &rt2x00debug_fop_crypto_stats);
+#endif
+
        return;
 
 exit:
@@ -590,6 +681,9 @@ void rt2x00debug_deregister(struct rt2x00_dev *rt2x00dev)
 
        skb_queue_purge(&intf->frame_dump_skbqueue);
 
+#ifdef CONFIG_RT2X00_LIB_CRYPTO
+       debugfs_remove(intf->crypto_stats_entry);
+#endif
        debugfs_remove(intf->queue_stats_entry);
        debugfs_remove(intf->queue_frame_dump_entry);
        debugfs_remove(intf->queue_folder);