Merged pull request usermode

Added usermode

1 files changed, 43 insertions, 0 deletions

diff --git a/src/kernel/fs/vfs.c b/src/kernel/fs/vfs.c
new file mode 100644
index 0000000..5591a60
--- /dev/null
+++ b/src/kernel/fs/vfs.c
@@ -0,0 +1,43 @@
+#include <kernel/fs/vfs.h>
+
+fs_node_t *fs_root = 0;
+
+uint32_t read_fs(fs_node_t *node, uint32_t offset, uint32_t size, uint8_t *buffer) {
+    if (node->read != 0)
+        return node->read(node, offset, size, buffer);
+    else
+        return 0;
+}
+
+uint32_t write_fs(fs_node_t *node, uint32_t offset, uint32_t size, uint8_t *buffer) {
+    if (node->write != 0)
+        return node->write(node, offset, size, buffer);
+    else
+        return 0;
+}
+
+void open_fs(fs_node_t *node, uint8_t read, uint8_t write) {
+    if (node->open != 0)
+        return node->open(node);
+}
+
+void close_fs(fs_node_t *node) {
+    if (node->close != 0)
+        return node->close(node);
+}
+
+struct dirent *readdir_fs(fs_node_t *node, uint32_t index) {
+    if ((node->flags & 0x7) == FS_DIRECTORY &&
+        node->readdir != 0)
+        return node->readdir(node, index);
+    else
+        return 0;
+}
+
+fs_node_t *finddir_fs(fs_node_t *node, char *name) {
+    if ((node->flags & 0x7) == FS_DIRECTORY &&
+        node->finddir != 0)
+        return node->finddir(node, name);
+    else
+        return 0;
+}