int ncp_request2(struct ncp_server *server, int function,
void* rpl, int size)
{
struct ncp_request_header *h;
struct ncp_reply_header* reply = rpl;
int result;
h = (struct ncp_request_header *) (server->packet);
if (server->has_subfunction != 0) {
*(__u16 *) & (h->data[0]) = htons(server->current_size - sizeof(*h) - 2);
}
h->type = NCP_REQUEST;
h->task = 2;
h->function = function;
result = ncp_do_request(server, server->current_size, reply, size);
if (result < 0) {
DPRINTK("ncp_request_error: %d\n", result);
goto out;
}
server->completion = reply->completion_code;
server->conn_status = reply->connection_state;
server->reply_size = result;
server->ncp_reply_size = result - sizeof(struct ncp_reply_header);
result = reply->completion_code;
if (result != 0)
PPRINTK("ncp_request: completion code=%x\n", result);
out:
return result;
}
/* ncp_do_request assures that at least a complete reply header is
* received. It assumes that server->current_size contains the ncp
* request size
*/
int ncp_request2(struct ncp_server *server, int function,
void* rpl, int size)
{
struct ncp_request_header *h;
struct ncp_reply_header* reply = rpl;
int request_size = server->current_size
- sizeof(struct ncp_request_header);
int result;
h = (struct ncp_request_header *) (server->packet);
if (server->has_subfunction != 0) {
*(__u16 *) & (h->data[0]) = htons(request_size - 2);
}
h->type = NCP_REQUEST;
server->sequence += 1;
h->sequence = server->sequence;
h->conn_low = (server->connection) & 0xff;
h->conn_high = ((server->connection) & 0xff00) >> 8;
/*
* The server shouldn't know or care what task is making a
* request, so we always use the same task number.
*/
h->task = 2; /* (current->pid) & 0xff; */
h->function = function;
result = ncp_do_request(server, request_size + sizeof(*h), reply, size);
if (result < 0) {
DPRINTK("ncp_request_error: %d\n", result);
goto out;
}
server->completion = reply->completion_code;
server->conn_status = reply->connection_state;
server->reply_size = result;
server->ncp_reply_size = result - sizeof(struct ncp_reply_header);
result = reply->completion_code;
if (result != 0)
PPRINTK("ncp_request: completion code=%x\n", result);
out:
return result;
}
/*
* 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) {
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;
down(&NCP_FINFO(inode)->open_sem);
if (!atomic_read(&NCP_FINFO(inode)->opened)) {
struct ncp_entry_info finfo;
int result;
finfo.i.dirEntNum = NCP_FINFO(inode)->dirEntNum;
finfo.i.volNumber = NCP_FINFO(inode)->volNumber;
/* tries max. rights */
finfo.access = O_RDWR;
result = ncp_open_create_file_or_subdir(NCP_SERVER(inode),
NULL, 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),
NULL, 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),
NULL, NULL, OC_MODE_OPEN,
0, AR_WRITE, &finfo);
break;
}
if (result) {
PPRINTK("ncp_make_open: 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;
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:
up(&NCP_FINFO(inode)->open_sem);
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;
}
