filesystem.c File Reference

#include <kernel/fs/filesystem.h>
#include <kernel/cpu/syscall.h>
#include <kernel/fs/cwd.h>
#include <kernel/fs/dentry.h>
#include <kernel/fs/file_table.h>
#include <kernel/fs/key.h>
#include <kernel/fs/mount.h>
#include <kernel/fs/path.h>
#include <kernel/fs/sysfs.h>
#include <kernel/fs/vfs.h>
#include <kernel/fs/vnode.h>
#include <kernel/log/log.h>
#include <kernel/log/panic.h>
#include <kernel/mem/vmm.h>
#include <kernel/proc/process.h>
#include <kernel/sched/clock.h>
#include <kernel/sched/sched.h>
#include <kernel/sched/timer.h>
#include <kernel/sched/wait.h>
#include <kernel/sync/mutex.h>
#include <kernel/sync/rwlock.h>
#include <kernel/utils/ref.h>
#include <kernel/cpu/regs.h>
#include <errno.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <sys/fs.h>
#include <sys/list.h>

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Functions
static map_key_t	filesystem_key (const char *name)
static size_t	superblock_read (file_t *file, void *buffer, size_t count, size_t *offset)
static void	superblock_cleanup (vnode_t *vnode)
static uint64_t	filesystem_lookup (vnode_t *dir, dentry_t *dentry)
static uint64_t	filesystem_iterate (dentry_t *dentry, dir_ctx_t *ctx)
static uint64_t	filesystem_dir_lookup (vnode_t *dir, dentry_t *dentry)
static uint64_t	filesystem_dir_iterate (dentry_t *dentry, dir_ctx_t *ctx)
void	filesystem_expose (void)
	Exposes the sysfs fs directory.
uint64_t	filesystem_register (filesystem_t *fs)
	Registers a filesystem.
void	filesystem_unregister (filesystem_t *fs)
	Unregisters a filesystem.
filesystem_t *	filesystem_get_by_name (const char *name)
	Gets a filesystem by name.
filesystem_t *	filesystem_get_by_path (const char *path, process_t *process)
	Gets a filesystem by path.
bool	options_next (const char **iter, char *buffer, size_t size, char **key, char **value)
	Helper function for iterating over options passed to a filesystem mount operation.

Variables
static dentry_t *	dir = NULL
static map_t	fsMap = MAP_CREATE()
static list_t	filesystems = LIST_CREATE(filesystems)
static rwlock_t	lock = RWLOCK_CREATE()
static file_ops_t	sbFileOps
static vnode_ops_t	sbVnodeOps
static vnode_ops_t	fsVnodeOps
static dentry_ops_t	fsDentryOps
static vnode_ops_t	dirVnodeOps
static dentry_ops_t	dirDentryOps

Function Documentation

filesystem_key()

static map_key_t filesystem_key ( const char *  name )

static

Definition at line 40 of file filesystem.c.

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superblock_read()

static size_t superblock_read ( file_t *  file, void *  buffer, size_t  count, size_t *  offset  )

static

Definition at line 45 of file filesystem.c.

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superblock_cleanup()

static void superblock_cleanup ( vnode_t *  vnode )

static

Definition at line 61 of file filesystem.c.

filesystem_lookup()

static uint64_t filesystem_lookup ( vnode_t *  dir, dentry_t *  dentry  )

static

Definition at line 81 of file filesystem.c.

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filesystem_iterate()

static uint64_t filesystem_iterate ( dentry_t *  dentry, dir_ctx_t *  ctx  )

static

Definition at line 115 of file filesystem.c.

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filesystem_dir_lookup()

static uint64_t filesystem_dir_lookup ( vnode_t *  dir, dentry_t *  dentry  )

static

Definition at line 155 of file filesystem.c.

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filesystem_dir_iterate()

static uint64_t filesystem_dir_iterate ( dentry_t *  dentry, dir_ctx_t *  ctx  )

static

Definition at line 181 of file filesystem.c.

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Variable Documentation

dir

dentry_t* dir = NULL

static

Definition at line 34 of file filesystem.c.

fsMap

map_t fsMap = MAP_CREATE()

static

Definition at line 36 of file filesystem.c.

filesystems

list_t filesystems = LIST_CREATE(filesystems)

static

Definition at line 37 of file filesystem.c.

lock

rwlock_t lock = RWLOCK_CREATE()

static

Definition at line 38 of file filesystem.c.

sbFileOps

file_ops_t sbFileOps

static

Initial value:

= {
    .read = superblock_read,
}

Definition at line 73 of file filesystem.c.

sbVnodeOps

vnode_ops_t sbVnodeOps

static

Initial value:

= {
    .cleanup = superblock_cleanup,
}

Definition at line 77 of file filesystem.c.

fsVnodeOps

vnode_ops_t fsVnodeOps

static

Initial value:

= {
    .lookup = filesystem_lookup,
}

Definition at line 147 of file filesystem.c.

fsDentryOps

dentry_ops_t fsDentryOps

static

Initial value:

= {
    .iterate = filesystem_iterate,
}

Definition at line 151 of file filesystem.c.

dirVnodeOps

vnode_ops_t dirVnodeOps

static

Initial value:

= {
    .lookup = filesystem_dir_lookup,
}

Definition at line 207 of file filesystem.c.

dirDentryOps

dentry_ops_t dirDentryOps

static

Initial value:

= {
    .iterate = filesystem_dir_iterate,
}

Definition at line 211 of file filesystem.c.