diff options
Diffstat (limited to 'src/kernel/fs/initrd.c')
| -rw-r--r-- | src/kernel/fs/initrd.c | 131 |
1 files changed, 0 insertions, 131 deletions
diff --git a/src/kernel/fs/initrd.c b/src/kernel/fs/initrd.c deleted file mode 100644 index acaceb8..0000000 --- a/src/kernel/fs/initrd.c +++ /dev/null @@ -1,131 +0,0 @@ -#include <stdint.h> -#include <kernel/fs/initrd.h> -#include <kernel/fs/vfs.h> -#include <kernel/lib/lib.h> -#include <kernel/lib/alloc.h> -#include <kernel/io/io.h> -#include <kernel/graphics/vesa.h> - -initrd_header_t *initrd_header; -initrd_file_header_t *file_headers; -fs_node_t *initrd_root; -fs_node_t *initrd_dev; -fs_node_t *root_nodes; -int nroot_nodes; - -struct dirent dirent; - -static uint32_t initrd_read(fs_node_t *node, uint32_t offset, uint32_t size, uint8_t *buffer) { - initrd_file_header_t header = file_headers[node->inode]; - if (offset > header.length) - return 0; - if (offset + size > header.length) - size = header.length - offset; - memcpy(buffer, (uint8_t *) (header.offset + offset), size); - return size; -} - -static struct dirent *initrd_readdir(fs_node_t *node, uint32_t index) { - if (node == initrd_root && index == 0) { - strcpy(dirent.name, "dev"); - dirent.name[3] = 0; - dirent.ino = 0; - return &dirent; - } - - if (index - 1 >= (uint32_t) nroot_nodes) - return 0; - strcpy(dirent.name, root_nodes[index - 1].name); - dirent.name[strlen(root_nodes[index - 1].name)] = 0; - dirent.ino = root_nodes[index - 1].inode; - return &dirent; -} - -static fs_node_t *initrd_finddir(fs_node_t *node, char *name) { - if (node == initrd_root && - !strcmp(name, "dev")) - return initrd_dev; - - int i; - for (i = 0; i < nroot_nodes; i++) - if (!strcmp(name, root_nodes[i].name)) - return &root_nodes[i]; - return 0; -} - -fs_node_t *initialise_initrd(uint32_t location) { - initrd_header = (initrd_header_t *) location; - file_headers = (initrd_file_header_t *) (location + sizeof(initrd_header_t)); - - initrd_root = (fs_node_t *) kmalloc(sizeof(fs_node_t)); - strcpy(initrd_root->name, "initrd"); - initrd_root->mask = initrd_root->uid = initrd_root->gid = initrd_root->inode = initrd_root->length = 0; - initrd_root->flags = FS_DIRECTORY; - initrd_root->read = 0; - initrd_root->write = 0; - initrd_root->open = 0; - initrd_root->close = 0; - initrd_root->readdir = &initrd_readdir; - initrd_root->finddir = &initrd_finddir; - initrd_root->ptr = 0; - initrd_root->impl = 0; - - initrd_dev = (fs_node_t *) kmalloc(sizeof(fs_node_t)); - strcpy(initrd_dev->name, "dev"); - initrd_dev->mask = initrd_dev->uid = initrd_dev->gid = initrd_dev->inode = initrd_dev->length = 0; - initrd_dev->flags = FS_DIRECTORY; - initrd_dev->read = 0; - initrd_dev->write = 0; - initrd_dev->open = 0; - initrd_dev->close = 0; - initrd_dev->readdir = &initrd_readdir; - initrd_dev->finddir = &initrd_finddir; - initrd_dev->ptr = 0; - initrd_dev->impl = 0; - - root_nodes = (fs_node_t *) kmalloc(sizeof(fs_node_t) * initrd_header->nfiles); - nroot_nodes = initrd_header->nfiles; - - for (uint32_t i = 0; i < initrd_header->nfiles; i++) { - file_headers[i].offset += location; - - strcpy(root_nodes[i].name, (const char *) &file_headers[i].name); - root_nodes[i].mask = root_nodes[i].uid = root_nodes[i].gid = 0; - root_nodes[i].length = file_headers[i].length; - root_nodes[i].inode = i; - root_nodes[i].flags = FS_FILE; - root_nodes[i].read = &initrd_read; - root_nodes[i].write = 0; - root_nodes[i].readdir = 0; - root_nodes[i].finddir = 0; - root_nodes[i].open = 0; - root_nodes[i].close = 0; - root_nodes[i].impl = 0; - } - return initrd_root; -} - -void initrd_test() { - int i = 0; - struct dirent *node = 0; - vesa_draw_string("\n"); - while ((node = readdir_fs(fs_root, i)) != 0) { - vesa_draw_string("Found file: "); - vesa_draw_string(node->name); - vesa_draw_string("\n"); - fs_node_t *fsnode = finddir_fs(fs_root, node->name); - - if ((fsnode->flags & 0x7) == FS_DIRECTORY) - vesa_draw_string("\t (directory)\n"); - else { - vesa_draw_string("\t contents: \""); - uint8_t buf[fsnode->length]; - uint32_t sz = read_fs(fsnode, 0, fsnode->length, buf); - for (uint32_t j = 0; j < sz; j++) - vesa_draw_char(buf[j]); - - vesa_draw_string("\"\n"); - } - i++; - } -}
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