From 65409d2312e702a48d3cf5b32479d25266bda3c3 Mon Sep 17 00:00:00 2001
From: Kartik Agaram <vc@akkartik.com>
Date: Wed, 1 Jan 2020 18:22:19 -0800
Subject: 5858

Move script to create a Soso boot image into a sub-directory.

I'm trying to streamline newcomer attention to just a couple of use cases.
---
 tools/iso/kernel.soso/rootfs.c | 96 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 tools/iso/kernel.soso/rootfs.c

(limited to 'tools/iso/kernel.soso/rootfs.c')

diff --git a/tools/iso/kernel.soso/rootfs.c b/tools/iso/kernel.soso/rootfs.c
new file mode 100644
index 00000000..9104b01f
--- /dev/null
+++ b/tools/iso/kernel.soso/rootfs.c
@@ -0,0 +1,96 @@
+#include "rootfs.h"
+#include "alloc.h"
+
+static BOOL rootfs_open(File *node, uint32 flags);
+static void rootfs_close(File *file);
+static FileSystemNode *rootfs_finddir(FileSystemNode *node, char *name);
+static struct FileSystemDirent *rootfs_readdir(FileSystemNode *node, uint32 index);
+static BOOL rootfs_mkdir(FileSystemNode *node, const char *name, uint32 flags);
+
+FileSystemNode* initializeRootFS() {
+    FileSystemNode* root = (FileSystemNode*)kmalloc(sizeof(FileSystemNode));
+    memset((uint8*)root, 0, sizeof(FileSystemNode));
+    root->nodeType = FT_Directory;
+    root->open = rootfs_open;
+    root->close = rootfs_close;
+    root->readdir = rootfs_readdir;
+    root->finddir = rootfs_finddir;
+    root->mkdir = rootfs_mkdir;
+
+    return root;
+}
+
+static FileSystemDirent gDirent;
+
+static BOOL rootfs_open(File *node, uint32 flags) {
+    return TRUE;
+}
+
+static void rootfs_close(File *file) {
+
+}
+
+static struct FileSystemDirent *rootfs_readdir(FileSystemNode *node, uint32 index) {
+    FileSystemNode *n = node->firstChild;
+    uint32 i = 0;
+    while (NULL != n) {
+        if (index == i) {
+            gDirent.fileType = n->nodeType;
+            gDirent.inode = n->inode;
+            strcpy(gDirent.name, n->name);
+
+            return &gDirent;
+        }
+        n = n->nextSibling;
+        ++i;
+    }
+
+    return NULL;
+}
+
+static FileSystemNode *rootfs_finddir(FileSystemNode *node, char *name) {
+    FileSystemNode *n = node->firstChild;
+    while (NULL != n) {
+        if (strcmp(name, n->name) == 0) {
+            return n;
+        }
+        n = n->nextSibling;
+    }
+
+    return NULL;
+}
+
+static BOOL rootfs_mkdir(FileSystemNode *node, const char *name, uint32 flags) {
+    FileSystemNode *n = node->firstChild;
+    while (NULL != n) {
+        if (strcmp(name, n->name) == 0) {
+            return FALSE;
+        }
+        n = n->nextSibling;
+    }
+
+    FileSystemNode* newNode = (FileSystemNode*)kmalloc(sizeof(FileSystemNode));
+    memset((uint8*)newNode, 0, sizeof(FileSystemNode));
+    strcpy(newNode->name, name);
+    newNode->nodeType = FT_Directory;
+    newNode->open = rootfs_open;
+    newNode->close = rootfs_close;
+    newNode->readdir = rootfs_readdir;
+    newNode->finddir = rootfs_finddir;
+    newNode->mkdir = rootfs_mkdir;
+    newNode->parent = node;
+
+    if (node->firstChild == NULL) {
+        node->firstChild = newNode;
+    }
+    else {
+        FileSystemNode *n = node->firstChild;
+        while (NULL != n->nextSibling) {
+            n = n->nextSibling;
+        }
+        n->nextSibling = newNode;
+    }
+
+    return TRUE;
+}
+
-- 
cgit 1.4.1-2-gfad0