static int nfs_mkdir(struct inode *dir, const char *name, int len, int mode)
{
struct nfs_sattr sattr;
struct nfs_fattr fattr;
struct nfs_fh fhandle;
int error;
if (!dir || !S_ISDIR(dir->i_mode)) {
printk("nfs_mkdir: inode is NULL or not a directory\n");
iput(dir);
return -ENOENT;
}
if (len > NFS_MAXNAMLEN) {
iput(dir);
return -ENAMETOOLONG;
}
sattr.mode = mode;
sattr.uid = sattr.gid = sattr.size = (unsigned) -1;
sattr.atime.seconds = sattr.mtime.seconds = (unsigned) -1;
error = nfs_proc_mkdir(NFS_SERVER(dir), NFS_FH(dir),
name, &sattr, &fhandle, &fattr);
if (!error) {
if (fattr.fileid == dir->i_ino)
printk("Sony NewsOS 4.1R buggy nfs server?\n");
else
nfs_lookup_cache_add(dir, name, &fhandle, &fattr);
}
iput(dir);
return error;
}
static int nfs_create(struct inode *dir, const char *name, int len, int mode,
struct inode **result)
{
struct nfs_sattr sattr;
struct nfs_fattr fattr;
struct nfs_fh fhandle;
int error;
*result = NULL;
if (!dir || !S_ISDIR(dir->i_mode)) {
printk("nfs_create: inode is NULL or not a directory\n");
iput(dir);
return -ENOENT;
}
if (len > NFS_MAXNAMLEN) {
iput(dir);
return -ENAMETOOLONG;
}
sattr.mode = mode;
sattr.uid = sattr.gid = sattr.size = (unsigned) -1;
sattr.atime.seconds = sattr.mtime.seconds = (unsigned) -1;
if ((error = nfs_proc_create(NFS_SERVER(dir), NFS_FH(dir),
name, &sattr, &fhandle, &fattr))) {
iput(dir);
return error;
}
if (!(*result = nfs_fhget(dir->i_sb, &fhandle, &fattr))) {
iput(dir);
return -EACCES;
}
nfs_lookup_cache_add(dir, name, &fhandle, &fattr);
iput(dir);
return 0;
}
static int nfs_mknod(struct inode *dir, const char *name, int len,
int mode, int rdev)
{
struct nfs_sattr sattr;
struct nfs_fattr fattr;
struct nfs_fh fhandle;
int error;
if (!dir || !S_ISDIR(dir->i_mode)) {
printk("nfs_mknod: inode is NULL or not a directory\n");
iput(dir);
return -ENOENT;
}
if (len > NFS_MAXNAMLEN) {
iput(dir);
return -ENAMETOOLONG;
}
if (S_ISFIFO(mode))
sattr.mode = (mode & ~S_IFMT) | S_IFCHR;
else
sattr.mode = mode;
sattr.uid = sattr.gid = (unsigned) -1;
if (S_ISCHR(mode) || S_ISBLK(mode))
sattr.size = rdev; /* get out your barf bag */
else
sattr.size = (unsigned) -1;
sattr.atime.seconds = sattr.mtime.seconds = (unsigned) -1;
error = nfs_proc_create(NFS_SERVER(dir), NFS_FH(dir),
name, &sattr, &fhandle, &fattr);
if (error == -EINVAL && (S_ISFIFO(mode))) {
sattr.mode = mode;
error = nfs_proc_create(NFS_SERVER(dir), NFS_FH(dir),
name, &sattr, &fhandle, &fattr);
}
if (!error)
{
nfs_lookup_cache_add(dir, name, &fhandle, &fattr);
/* The parent dir inode count may have changed ! */
nfs_lookup_cache_remove( NULL, dir, NULL);
}
iput(dir);
return error;
}
static int nfs_lookup(struct inode *dir, const char *__name, int len,
struct inode **result)
{
struct nfs_fh fhandle;
struct nfs_fattr fattr;
char name[len > NFS_MAXNAMLEN? 1 : len+1];
int error;
*result = NULL;
if (!dir || !S_ISDIR(dir->i_mode)) {
printk("nfs_lookup: inode is NULL or not a directory\n");
iput(dir);
return -ENOENT;
}
if (len > NFS_MAXNAMLEN) {
iput(dir);
return -ENAMETOOLONG;
}
memcpy(name,__name,len);
name[len] = '\0';
if (len == 1 && name[0] == '.') { /* cheat for "." */
*result = dir;
return 0;
}
if ((NFS_SERVER(dir)->flags & NFS_MOUNT_NOAC)
|| !nfs_lookup_cache_lookup(dir, name, &fhandle, &fattr)) {
if ((error = nfs_proc_lookup(NFS_SERVER(dir), NFS_FH(dir),
name, &fhandle, &fattr))) {
iput(dir);
return error;
}
nfs_lookup_cache_add(dir, name, &fhandle, &fattr);
}
if (!(*result = nfs_fhget(dir->i_sb, &fhandle, &fattr))) {
iput(dir);
return -EACCES;
}
iput(dir);
return 0;
}
