path.c File Reference

#include <kernel/fs/path.h>
#include <kernel/fs/dentry.h>
#include <kernel/fs/namespace.h>
#include <kernel/fs/vfs.h>
#include <kernel/log/log.h>
#include <kernel/log/panic.h>
#include <kernel/sync/mutex.h>
#include <errno.h>
#include <string.h>

Go to the source code of this file.

Data Structures
struct	path_flag_entry_t

Functions
static path_flag_entry_t *	path_flags_get (const char *flag, uint64_t length)
void	path_flags_init (void)
	Initialize path flags resolution.
uint64_t	pathname_init (pathname_t *pathname, const char *string)
	Initialize a pathname.
void	path_set (path_t *path, mount_t *mount, dentry_t *dentry)
	Set a path.
void	path_copy (path_t *dest, const path_t *src)
	Copy a path.
void	path_put (path_t *path)
	Put a path.
static uint64_t	path_handle_dotdot (path_t *current)
uint64_t	path_walk_single_step (path_t *outPath, const path_t *parent, const char *component, walk_flags_t flags, namespace_t *ns)
	Traverse a single component from a parent path.
uint64_t	path_walk (path_t *outPath, const pathname_t *pathname, const path_t *start, walk_flags_t flags, namespace_t *ns)
	Traverse a pathname from a specified starting path.
uint64_t	path_walk_parent (path_t *outPath, const pathname_t *pathname, const path_t *start, char *outLastName, walk_flags_t flags, namespace_t *ns)
	Traverse a pathname to its parent and get the last component name.
uint64_t	path_to_name (const path_t *path, pathname_t *pathname)
	Convert a path to a pathname.

Variables
static map_t	flagMap
static map_t	flagShortMap
static path_flag_entry_t	flagEntries []

Function Documentation

path_flags_get()

static path_flag_entry_t * path_flags_get ( const char *  flag, uint64_t  length  )

static

Definition at line 34 of file path.c.

References assert, CONTAINER_OF_SAFE, EBADFLAG, errno, flagEntries, flagMap, flagShortMap, map_get(), map_key_buffer(), NULL, and PATH_FLAGS_AMOUNT.

Referenced by pathname_init().

path_handle_dotdot()

static uint64_t path_handle_dotdot ( path_t *  current )

static

Definition at line 272 of file path.c.

References assert, path_t::dentry, DEREF, ELOOP, ENOENT, ERR, errno, path_t::mount, mount_t::mountpoint, NULL, dentry_t::parent, mount_t::parent, PATH_HANDLE_DOTDOT_MAX_ITER, REF, and mount_t::root.

Referenced by path_walk().

Variable Documentation

flagEntries

path_flag_entry_t flagEntries[]

static

Initial value:

= {
    {.flag = PATH_NONBLOCK, .name = "nonblock"},
    {.flag = PATH_APPEND, .name = "append"},
    {.flag = PATH_CREATE, .name = "create"},
    {.flag = PATH_EXCLUSIVE, .name = "excl"},
    {.flag = PATH_TRUNCATE, .name = "trunc"},
    {.flag = PATH_DIRECTORY, .name = "dir"},
    {.flag = PATH_RECURSIVE, .name = "recur"},
}

Definition at line 24 of file path.c.

Referenced by path_flags_get(), and path_flags_init().

flagMap

map_t flagMap

static

Definition at line 13 of file path.c.

Referenced by path_flags_get(), and path_flags_init().

flagShortMap

map_t flagShortMap

static

Definition at line 14 of file path.c.

Referenced by path_flags_get(), and path_flags_init().