LCOM1920-T02G10

/* Part of libsffs - (c) 2012, D.C. van Moolenbroek */

#ifndef _MINIX_SFFS_H

#define _MINIX_SFFS_H

#include <sys/types.h>

#include <sys/time.h>

#include <minix/u64.h>

typedef void *sffs_file_t;                /* handle to open file */

typedef void *sffs_dir_t;                /* handle to directory search */

struct sffs_attr {

  u32_t a_mask;                                /* which fields to retrieve/set */

  mode_t a_mode;                        /* file type and permissions */

  u64_t a_size;                                /* file size */

  struct timespec a_crtime;                /* file creation time */

  struct timespec a_atime;                /* file access time */

  struct timespec a_mtime;                /* file modification time */

  struct timespec a_ctime;                /* file change time */

};

#define SFFS_ATTR_SIZE                0x01        /* get/set file size */

#define SFFS_ATTR_CRTIME        0x02        /* get/set file creation time */

#define SFFS_ATTR_ATIME                0x04        /* get/set file access time */

#define SFFS_ATTR_MTIME                0x08        /* get/set file modification time */

#define SFFS_ATTR_CTIME                0x10        /* get/set file change time */

#define SFFS_ATTR_MODE                0x20        /* get/set file mode */

struct sffs_table {

  int (*t_open)(const char *path, int flags, int mode, sffs_file_t *handle);

  ssize_t (*t_read)(sffs_file_t handle, char *buf, size_t size, u64_t pos);

  ssize_t (*t_write)(sffs_file_t handle, char *buf, size_t size, u64_t pos);

  int (*t_close)(sffs_file_t handle);

  size_t (*t_readbuf)(char **ptr);

  size_t (*t_writebuf)(char **ptr);

  int (*t_opendir)(const char *path, sffs_dir_t *handle);

  int (*t_readdir)(sffs_dir_t handle, unsigned int index, char *buf,

        size_t size, struct sffs_attr *attr);

  int (*t_closedir)(sffs_dir_t handle);

  int (*t_getattr)(const char *path, struct sffs_attr *attr);

  int (*t_setattr)(const char *path, struct sffs_attr *attr);

  int (*t_mkdir)(const char *path, int mode);

  int (*t_unlink)(const char *path);

  int (*t_rmdir)(const char *path);

  int (*t_rename)(const char *opath, const char *npath);

  int (*t_queryvol)(const char *path, u64_t *free, u64_t *total);

};

struct sffs_params {

  char p_prefix[PATH_MAX];        /* prefix for all paths used */

  uid_t p_uid;                        /* UID that owns all files */

  gid_t p_gid;                        /* GID that owns all files */

  unsigned int p_file_mask;        /* AND-mask to apply to file permissions */

  unsigned int p_dir_mask;        /* AND-mask to apply to directory perms */

  int p_case_insens;                /* case insensitivity flag */

};

int sffs_init(char *name, const struct sffs_table *table,

  struct sffs_params *params);

void sffs_signal(int signo);

void sffs_loop(void);

#endif /* _MINIX_SFFS_H */