include/linux/

$\bullet$ stat.h :

Définition du type de fichier ``lien actif''.

#define S_IFMT  00170000
#define S_IFLNK  0120000     /* symlink */
#ifdef CONFIG_ALINK
# define S_IFALNK 0110000     /* alink */
#endif


#define S_ISLNK(m)      (((m) & S_IFMT) == S_IFLNK)
#ifdef CONFIG_ALINK
# define S_ISALNK(m)    (((m) & S_IFMT) == S_IFALNK)
#endif

$\bullet$ fs.h :

Ajout des nouvelles opérations possibles sur les inodes.

struct inode_operations {
  int (*symlink) (struct inode *,struct dentry *,const char *);

#ifdef CONFIG_ALINK
  int (*alink) (struct inode *,struct dentry *,const char *);
  int (*readalink) (struct dentry *, char __user *,int);
  int (*follow_alink) (struct dentry *dentry, struct nameidata *nd);
#endif
  ....
}

Externalisation des prototypes.

#ifdef CONFIG_ALINK
 extern int vfs_alink(struct inode *, struct dentry *, const char *);
 extern int vfs_readalink(struct dentry *, char __user *, int, const char *);
 extern int page_readalink(struct dentry *, char __user *, int);
 extern int page_follow_alink(struct dentry *, struct nameidata *);
 extern int page_alink(struct inode *inode, const char *symname, int len);
 extern struct inode_operations page_alink_inode_operations;
#endif

$\bullet$ syscall.h :

Définition des prototypes des nouveaux appels systèmes.

 asmlinkage long sys_readalink(const char __user *path,
                               char __user *buf, int bufsiz);
 asmlinkage long sys_alink(const char *old, const char *new);
 asmlinkage long sys_astat(char __user *filename,
                           struct __old_kernel_stat __user *statbuf);