/*
* Fill in the inode based on the ncp_entry_info structure.
*/
static void ncp_set_attr(struct inode *inode, struct ncp_entry_info *nwinfo)
{
struct ncp_server *server = NCP_SERVER(inode);
NCP_FINFO(inode)->flags = 0;
ncp_update_attrs(inode, nwinfo);
DDPRINTK("ncp_read_inode: inode->i_mode = %u\n", inode->i_mode);
inode->i_nlink = 1;
inode->i_uid = server->m.uid;
inode->i_gid = server->m.gid;
ncp_update_dates(inode, &nwinfo->i);
ncp_update_inode(inode, nwinfo);
}
/*
* Fill in the inode based on the nw_file_info structure.
*/
static void ncp_set_attr(struct inode *inode, struct nw_file_info *nwinfo)
{
struct nw_info_struct *nwi = &nwinfo->i;
struct ncp_server *server = NCP_SERVER(inode);
if (nwi->attributes & aDIR) {
inode->i_mode = server->m.dir_mode;
/* for directories dataStreamSize seems to be some
Object ID ??? */
inode->i_size = 512;
} else {
inode->i_mode = server->m.file_mode;
inode->i_size = le32_to_cpu(nwi->dataStreamSize);
}
if (nwi->attributes & aRONLY) inode->i_mode &= ~0222;
DDPRINTK(KERN_DEBUG "ncp_read_inode: inode->i_mode = %u\n", inode->i_mode);
inode->i_nlink = 1;
inode->i_uid = server->m.uid;
inode->i_gid = server->m.gid;
inode->i_blksize = 512;
inode->i_rdev = 0;
inode->i_blocks = 0;
if ((inode->i_blksize != 0) && (inode->i_size != 0)) {
inode->i_blocks =
(inode->i_size - 1) / inode->i_blksize + 1;
}
inode->i_mtime = ncp_date_dos2unix(le16_to_cpu(nwi->modifyTime),
le16_to_cpu(nwi->modifyDate));
inode->i_ctime = ncp_date_dos2unix(le16_to_cpu(nwi->creationTime),
le16_to_cpu(nwi->creationDate));
inode->i_atime = ncp_date_dos2unix(0,
le16_to_cpu(nwi->lastAccessDate));
ncp_update_inode(inode, nwinfo);
}
/*
* Open a file with the specified read/write mode.
*/
int ncp_make_open(struct inode *inode, int right)
{
int error;
int access;
error = -EINVAL;
if (!inode) {
pr_err("%s: got NULL inode\n", __func__);
goto out;
}
ncp_dbg(1, "opened=%d, volume # %u, dir entry # %u\n",
atomic_read(&NCP_FINFO(inode)->opened),
NCP_FINFO(inode)->volNumber,
NCP_FINFO(inode)->dirEntNum);
error = -EACCES;
mutex_lock(&NCP_FINFO(inode)->open_mutex);
if (!atomic_read(&NCP_FINFO(inode)->opened)) {
struct ncp_entry_info finfo;
int result;
/* tries max. rights */
finfo.access = O_RDWR;
result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
inode, NULL, OC_MODE_OPEN,
0, AR_READ | AR_WRITE, &finfo);
if (!result)
goto update;
/* RDWR did not succeeded, try readonly or writeonly as requested */
switch (right) {
case O_RDONLY:
finfo.access = O_RDONLY;
result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
inode, NULL, OC_MODE_OPEN,
0, AR_READ, &finfo);
break;
case O_WRONLY:
finfo.access = O_WRONLY;
result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
inode, NULL, OC_MODE_OPEN,
0, AR_WRITE, &finfo);
break;
}
if (result) {
ncp_vdbg("failed, result=%d\n", result);
goto out_unlock;
}
/*
* Update the inode information.
*/
update:
ncp_update_inode(inode, &finfo);
atomic_set(&NCP_FINFO(inode)->opened, 1);
}
access = NCP_FINFO(inode)->access;
ncp_vdbg("file open, access=%x\n", access);
if (access == right || access == O_RDWR) {
atomic_inc(&NCP_FINFO(inode)->opened);
error = 0;
}
out_unlock:
mutex_unlock(&NCP_FINFO(inode)->open_mutex);
out:
return error;
}
int ncp_make_open(struct inode *inode, int right)
{
int error;
int access;
error = -EINVAL;
if (!inode) {
printk(KERN_ERR "ncp_make_open: got NULL inode\n");
goto out;
}
DPRINTK("ncp_make_open: opened=%d, volume # %u, dir entry # %u\n",
atomic_read(&NCP_FINFO(inode)->opened),
NCP_FINFO(inode)->volNumber,
NCP_FINFO(inode)->dirEntNum);
error = -EACCES;
mutex_lock(&NCP_FINFO(inode)->open_mutex);
if (!atomic_read(&NCP_FINFO(inode)->opened)) {
struct ncp_entry_info finfo;
int result;
/* */
finfo.access = O_RDWR;
result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
inode, NULL, OC_MODE_OPEN,
0, AR_READ | AR_WRITE, &finfo);
if (!result)
goto update;
/* */
switch (right) {
case O_RDONLY:
finfo.access = O_RDONLY;
result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
inode, NULL, OC_MODE_OPEN,
0, AR_READ, &finfo);
break;
case O_WRONLY:
finfo.access = O_WRONLY;
result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
inode, NULL, OC_MODE_OPEN,
0, AR_WRITE, &finfo);
break;
}
if (result) {
PPRINTK("ncp_make_open: failed, result=%d\n", result);
goto out_unlock;
}
/*
*/
update:
ncp_update_inode(inode, &finfo);
atomic_set(&NCP_FINFO(inode)->opened, 1);
}
access = NCP_FINFO(inode)->access;
PPRINTK("ncp_make_open: file open, access=%x\n", access);
if (access == right || access == O_RDWR) {
atomic_inc(&NCP_FINFO(inode)->opened);
error = 0;
}
out_unlock:
mutex_unlock(&NCP_FINFO(inode)->open_mutex);
out:
return error;
}
