37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
/*****************************************
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* VulcanOS Kernel *
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* Developed by Marco 'icebit' Cetica *
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* (c) 2019-2021 *
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* Released under GPLv3 *
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* https://github.com/ice-bit/vulcanos *
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*****************************************/
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#ifndef INITRD_H
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#define INITRD_H
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/* Ramdisk is a file system that is loaded along with the kernel
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* and it usually contains configuration files or file system drivers.
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* It is used BEFORE partitions are being mounted*/
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#include <stdint.h>
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#include "../libc/string.h"
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#include "fs.h"
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typedef struct {
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uint32_t nfiles; // Number of files in the ramdisk
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} initrd_header_t;
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typedef struct {
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uint8_t magic; // Magic number for error checking
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int8_t name[64]; // Filename
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uint32_t offset;
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uint32_t length; // Length of the file
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} initrd_file_header_t;
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// Function to initialize initrd, we'll pass the multiboot
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// module as parameter
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fs_node_t *init_ramdisk(uint32_t multiboot_location);
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static uint32_t initrd_read(fs_node_t *node, uint32_t offset, uint32_t size, uint8_t *buffer);
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static struct dirent *initrd_readdir(fs_node_t *node, uint32_t index);
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static fs_node_t *initrd_finddir(fs_node_t *node, uint8_t *name);
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#endif
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