feat: Massive OS expansion with IPC, Sound & TTS, Block layer, FAT32/ext2/sysfs, Signals, Syscalls, Modules, Drivers & 50+ LazyBox applets

include/fs/ext2.h

@@ -0,0 +1,65 @@
+#ifndef _FS_EXT2_H
+#define _FS_EXT2_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <fs/vfs.h>
+
+#define EXT2_SUPER_MAGIC 0xEF53
+
+/* ext2 Superblock Definition */
+typedef struct {
+    uint32_t s_inodes_count;
+    uint32_t s_blocks_count;
+    uint32_t s_r_blocks_count;
+    uint32_t s_free_blocks_count;
+    uint32_t s_free_inodes_count;
+    uint32_t s_first_data_block;
+    uint32_t s_log_block_size;
+    uint32_t s_log_frag_size;
+    uint32_t s_blocks_per_group;
+    uint32_t s_frags_per_group;
+    uint32_t s_inodes_per_group;
+    uint32_t s_mtime;
+    uint32_t s_wtime;
+    uint16_t s_mnt_count;
+    uint16_t s_max_mnt_count;
+    uint16_t s_magic;
+    uint16_t s_state;
+    uint16_t s_errors;
+    uint16_t s_minor_rev_level;
+    uint32_t s_lastcheck;
+    uint32_t s_checkinterval;
+    uint32_t s_creator_os;
+    uint32_t s_rev_level;
+    uint16_t s_def_resuid;
+    uint16_t s_def_resgid;
+} __attribute__((packed)) ext2_superblock_t;
+
+/* ext2 Inode Structure */
+typedef struct {
+    uint16_t i_mode;
+    uint16_t i_uid;
+    uint32_t i_size;
+    uint32_t i_atime;
+    uint32_t i_ctime;
+    uint32_t i_mtime;
+    uint32_t i_dtime;
+    uint16_t i_gid;
+    uint16_t i_links_count;
+    uint32_t i_blocks;
+    uint32_t i_flags;
+    uint32_t i_osd1;
+    uint32_t i_block[15];
+    uint32_t i_generation;
+    uint32_t i_file_acl;
+    uint32_t i_dir_acl;
+    uint32_t i_faddr;
+    uint8_t  i_osd2[12];
+} __attribute__((packed)) ext2_inode_t;
+
+void ext2_init(void);
+vfs_node_t* ext2_mount(const char* block_device_name);
+
+#endif // _FS_EXT2_H

include/fs/fat32.h

@@ -0,0 +1,60 @@
+#ifndef _FS_FAT32_H
+#define _FS_FAT32_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <fs/vfs.h>
+
+/* FAT32 Extended BIOS Parameter Block */
+typedef struct {
+    uint8_t  jmp[3];
+    char     oem[8];
+    uint16_t bytes_per_sector;
+    uint8_t  sectors_per_cluster;
+    uint16_t reserved_sectors;
+    uint8_t  fat_count;
+    uint16_t root_entries;
+    uint16_t total_sectors_short;
+    uint8_t  media_type;
+    uint16_t table_size_16;
+    uint16_t sectors_per_track;
+    uint16_t head_side_count;
+    uint32_t hidden_sectors;
+    uint32_t total_sectors_32;
+
+    // FAT32 Extended
+    uint32_t table_size_32;
+    uint16_t extended_flags;
+    uint16_t fat_version;
+    uint32_t root_cluster;
+    uint16_t fat_info;
+    uint16_t backup_boot_sector;
+    uint8_t  reserved[12];
+    uint8_t  drive_number;
+    uint8_t  reserved1;
+    uint8_t  boot_signature;
+    uint32_t volume_id;
+    char     volume_label[11];
+    char     fat_type_label[8];
+} __attribute__((packed)) fat32_bpb_t;
+
+typedef struct {
+    char     name[11];
+    uint8_t  attr;
+    uint8_t  nt_reserved;
+    uint8_t  creation_time_tenth;
+    uint16_t creation_time;
+    uint16_t creation_date;
+    uint16_t last_access_date;
+    uint16_t cluster_high;
+    uint16_t write_time;
+    uint16_t write_date;
+    uint16_t cluster_low;
+    uint32_t file_size;
+} __attribute__((packed)) fat32_dirent_t;
+
+void fat32_init(void);
+vfs_node_t* fat32_mount(const char* block_device_name);
+
+#endif // _FS_FAT32_H

include/fs/sysfs.h

@@ -0,0 +1,9 @@
+#ifndef _FS_SYSFS_H
+#define _FS_SYSFS_H
+
+#include <fs/vfs.h>
+
+void sysfs_init(void);
+vfs_node_t* sysfs_create_entry(const char* path, const char* value);
+
+#endif // _FS_SYSFS_H

include/fs/vfs.h

@@ -72,6 +72,7 @@ typedef struct {
 void vfs_init(void);
 vfs_node_t* vfs_namei(const char* path);
 int vfs_open(const char* path, uint32_t flags);
+int vfs_open_node(vfs_node_t* node, uint32_t flags);
 ssize_t vfs_read(int fd, void* buffer, size_t size);
 ssize_t vfs_write(int fd, const void* buffer, size_t size);
 off_t vfs_lseek(int fd, off_t offset, int whence);