struct super_block *
ncp_read_super(struct super_block *sb, void *raw_data, int silent)
{
struct ncp_mount_data *data = (struct ncp_mount_data *) raw_data;
struct ncp_server *server;
struct file *ncp_filp;
struct file *wdog_filp;
struct file *msg_filp;
kdev_t dev = sb->s_dev;
int error;
if (data == NULL)
{
printk("ncp_read_super: missing data argument\n");
sb->s_dev = 0;
return NULL;
}
if (data->version != NCP_MOUNT_VERSION)
{
printk("ncp warning: mount version %s than kernel\n",
(data->version < NCP_MOUNT_VERSION) ?
"older" : "newer");
sb->s_dev = 0;
return NULL;
}
if ( (data->ncp_fd >= NR_OPEN)
|| ((ncp_filp = current->files->fd[data->ncp_fd]) == NULL)
|| (!S_ISSOCK(ncp_filp->f_inode->i_mode)))
{
printk("ncp_read_super: invalid ncp socket\n");
sb->s_dev = 0;
return NULL;
}
if ( (data->wdog_fd >= NR_OPEN)
|| ((wdog_filp = current->files->fd[data->wdog_fd]) == NULL)
|| (!S_ISSOCK(wdog_filp->f_inode->i_mode)))
{
printk("ncp_read_super: invalid wdog socket\n");
sb->s_dev = 0;
return NULL;
}
if ( (data->message_fd >= NR_OPEN)
|| ((msg_filp = current->files->fd[data->message_fd]) == NULL)
|| (!S_ISSOCK(msg_filp->f_inode->i_mode)))
{
printk("ncp_read_super: invalid wdog socket\n");
sb->s_dev = 0;
return NULL;
}
/* We must malloc our own super-block info */
server = (struct ncp_server *)ncp_kmalloc(sizeof(struct ncp_server),
GFP_KERNEL);
if (server == NULL)
{
printk("ncp_read_super: could not alloc ncp_server\n");
return NULL;
}
ncp_filp->f_count += 1;
wdog_filp->f_count += 1;
msg_filp->f_count += 1;
lock_super(sb);
NCP_SBP(sb) = server;
sb->s_blocksize = 1024; /* Eh... Is this correct? */
sb->s_blocksize_bits = 10;
sb->s_magic = NCP_SUPER_MAGIC;
sb->s_dev = dev;
sb->s_op = &ncp_sops;
server->ncp_filp = ncp_filp;
server->wdog_filp = wdog_filp;
server->msg_filp = msg_filp;
server->lock = 0;
server->wait = NULL;
server->packet = NULL;
server->buffer_size = 0;
server->conn_status = 0;
server->m = *data;
server->m.file_mode = (server->m.file_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFREG;
server->m.dir_mode = (server->m.dir_mode &
(S_IRWXU|S_IRWXG|S_IRWXO)) | S_IFDIR;
/* protect against invalid mount points */
server->m.mount_point[sizeof(server->m.mount_point)-1] = '\0';
server->packet_size = NCP_PACKET_SIZE;
server->packet = ncp_kmalloc(NCP_PACKET_SIZE, GFP_KERNEL);
if (server->packet == NULL)
{
printk("ncpfs: could not alloc packet\n");
error = -ENOMEM;
unlock_super(sb);
goto fail;
}
/*
* Make the connection to the server
*/
if (ncp_catch_watchdog(server) != 0)
{
printk("ncp_read_super: Could not catch watchdog\n");
error = -EINVAL;
unlock_super(sb);
goto fail;
}
if (ncp_catch_message(server) != 0)
{
printk("ncp_read_super: Could not catch messages\n");
ncp_dont_catch_watchdog(server);
error = -EINVAL;
unlock_super(sb);
goto fail;
}
ncp_lock_server(server);
error = ncp_connect(server);
ncp_unlock_server(server);
unlock_super(sb);
if (error < 0)
{
sb->s_dev = 0;
printk("ncp_read_super: Failed connection, bailing out "
"(error = %d).\n", -error);
ncp_kfree_s(server->packet, server->packet_size);
ncp_dont_catch_watchdog(server);
goto fail;
}
DPRINTK("ncp_read_super: NCP_SBP(sb) = %x\n", (int)NCP_SBP(sb));
ncp_init_root(server);
if (!(sb->s_mounted = iget(sb, ncp_info_ino(server, &(server->root)))))
{
sb->s_dev = 0;
printk("ncp_read_super: get root inode failed\n");
goto disconnect;
}
if (ncp_negotiate_buffersize(server, NCP_DEFAULT_BUFSIZE,
&(server->buffer_size)) != 0)
{
sb->s_dev = 0;
printk("ncp_read_super: could not get bufsize\n");
goto disconnect;
}
DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size);
MOD_INC_USE_COUNT;
return sb;
disconnect:
ncp_lock_server(server);
ncp_disconnect(server);
ncp_unlock_server(server);
ncp_kfree_s(server->packet, server->packet_size);
ncp_dont_catch_watchdog(server);
fail:
ncp_filp->f_count -= 1;
wdog_filp->f_count -= 1;
msg_filp->f_count -= 1;
ncp_kfree_s(NCP_SBP(sb), sizeof(struct ncp_server));
return NULL;
}
static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
{
struct ncp_mount_data_kernel data;
struct ncp_server *server;
struct file *ncp_filp;
struct inode *root_inode;
struct inode *sock_inode;
struct socket *sock;
int error;
int default_bufsize;
#ifdef CONFIG_NCPFS_PACKET_SIGNING
int options;
#endif
struct ncp_entry_info finfo;
data.wdog_pid = NULL;
server = kzalloc(sizeof(struct ncp_server), GFP_KERNEL);
if (!server)
return -ENOMEM;
sb->s_fs_info = server;
error = -EFAULT;
if (raw_data == NULL)
goto out;
switch (*(int*)raw_data) {
case NCP_MOUNT_VERSION:
{
struct ncp_mount_data* md = (struct ncp_mount_data*)raw_data;
data.flags = md->flags;
data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE;
data.mounted_uid = md->mounted_uid;
data.wdog_pid = find_get_pid(md->wdog_pid);
data.ncp_fd = md->ncp_fd;
data.time_out = md->time_out;
data.retry_count = md->retry_count;
data.uid = md->uid;
data.gid = md->gid;
data.file_mode = md->file_mode;
data.dir_mode = md->dir_mode;
data.info_fd = -1;
memcpy(data.mounted_vol, md->mounted_vol,
NCP_VOLNAME_LEN+1);
}
break;
case NCP_MOUNT_VERSION_V4:
{
struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data;
data.flags = md->flags;
data.int_flags = 0;
data.mounted_uid = md->mounted_uid;
data.wdog_pid = find_get_pid(md->wdog_pid);
data.ncp_fd = md->ncp_fd;
data.time_out = md->time_out;
data.retry_count = md->retry_count;
data.uid = md->uid;
data.gid = md->gid;
data.file_mode = md->file_mode;
data.dir_mode = md->dir_mode;
data.info_fd = -1;
data.mounted_vol[0] = 0;
}
break;
default:
error = -ECHRNG;
if (memcmp(raw_data, "vers", 4) == 0) {
error = ncp_parse_options(&data, raw_data);
}
if (error)
goto out;
break;
}
error = -EBADF;
ncp_filp = fget(data.ncp_fd);
if (!ncp_filp)
goto out;
error = -ENOTSOCK;
sock_inode = ncp_filp->f_path.dentry->d_inode;
if (!S_ISSOCK(sock_inode->i_mode))
goto out_fput;
sock = SOCKET_I(sock_inode);
if (!sock)
goto out_fput;
if (sock->type == SOCK_STREAM)
default_bufsize = 0xF000;
else
default_bufsize = 1024;
sb->s_flags |= MS_NODIRATIME; /* probably even noatime */
sb->s_maxbytes = 0xFFFFFFFFU;
sb->s_blocksize = 1024; /* Eh... Is this correct? */
sb->s_blocksize_bits = 10;
sb->s_magic = NCP_SUPER_MAGIC;
sb->s_op = &ncp_sops;
server = NCP_SBP(sb);
memset(server, 0, sizeof(*server));
server->ncp_filp = ncp_filp;
server->ncp_sock = sock;
if (data.info_fd != -1) {
struct socket *info_sock;
error = -EBADF;
server->info_filp = fget(data.info_fd);
if (!server->info_filp)
goto out_fput;
error = -ENOTSOCK;
sock_inode = server->info_filp->f_path.dentry->d_inode;
if (!S_ISSOCK(sock_inode->i_mode))
goto out_fput2;
info_sock = SOCKET_I(sock_inode);
if (!info_sock)
goto out_fput2;
error = -EBADFD;
if (info_sock->type != SOCK_STREAM)
goto out_fput2;
server->info_sock = info_sock;
}
/* server->lock = 0; */
mutex_init(&server->mutex);
server->packet = NULL;
/* server->buffer_size = 0; */
/* server->conn_status = 0; */
/* server->root_dentry = NULL; */
/* server->root_setuped = 0; */
#ifdef CONFIG_NCPFS_PACKET_SIGNING
/* server->sign_wanted = 0; */
/* server->sign_active = 0; */
#endif
server->auth.auth_type = NCP_AUTH_NONE;
/* server->auth.object_name_len = 0; */
/* server->auth.object_name = NULL; */
/* server->auth.object_type = 0; */
/* server->priv.len = 0; */
/* server->priv.data = NULL; */
server->m = data;
/* Althought anything producing this is buggy, it happens
now because of PATH_MAX changes.. */
if (server->m.time_out < 1) {
server->m.time_out = 10;
printk(KERN_INFO "You need to recompile your ncpfs utils..\n");
}
server->m.time_out = server->m.time_out * HZ / 100;
server->m.file_mode = (server->m.file_mode & S_IRWXUGO) | S_IFREG;
server->m.dir_mode = (server->m.dir_mode & S_IRWXUGO) | S_IFDIR;
#ifdef CONFIG_NCPFS_NLS
/* load the default NLS charsets */
server->nls_vol = load_nls_default();
server->nls_io = load_nls_default();
#endif /* CONFIG_NCPFS_NLS */
server->dentry_ttl = 0; /* no caching */
INIT_LIST_HEAD(&server->tx.requests);
mutex_init(&server->rcv.creq_mutex);
server->tx.creq = NULL;
server->rcv.creq = NULL;
server->data_ready = sock->sk->sk_data_ready;
server->write_space = sock->sk->sk_write_space;
server->error_report = sock->sk->sk_error_report;
sock->sk->sk_user_data = server;
init_timer(&server->timeout_tm);
#undef NCP_PACKET_SIZE
#define NCP_PACKET_SIZE 131072
error = -ENOMEM;
server->packet_size = NCP_PACKET_SIZE;
server->packet = vmalloc(NCP_PACKET_SIZE);
if (server->packet == NULL)
goto out_nls;
server->txbuf = vmalloc(NCP_PACKET_SIZE);
if (server->txbuf == NULL)
goto out_packet;
server->rxbuf = vmalloc(NCP_PACKET_SIZE);
if (server->rxbuf == NULL)
goto out_txbuf;
sock->sk->sk_data_ready = ncp_tcp_data_ready;
sock->sk->sk_error_report = ncp_tcp_error_report;
if (sock->type == SOCK_STREAM) {
server->rcv.ptr = (unsigned char*)&server->rcv.buf;
server->rcv.len = 10;
server->rcv.state = 0;
INIT_WORK(&server->rcv.tq, ncp_tcp_rcv_proc);
INIT_WORK(&server->tx.tq, ncp_tcp_tx_proc);
sock->sk->sk_write_space = ncp_tcp_write_space;
} else {
INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc);
INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc);
server->timeout_tm.data = (unsigned long)server;
server->timeout_tm.function = ncpdgram_timeout_call;
}
ncp_lock_server(server);
error = ncp_connect(server);
ncp_unlock_server(server);
if (error < 0)
goto out_rxbuf;
DPRINTK("ncp_fill_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb));
error = -EMSGSIZE; /* -EREMOTESIDEINCOMPATIBLE */
#ifdef CONFIG_NCPFS_PACKET_SIGNING
if (ncp_negotiate_size_and_options(server, default_bufsize,
NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0)
{
if (options != NCP_DEFAULT_OPTIONS)
{
if (ncp_negotiate_size_and_options(server,
default_bufsize,
options & 2,
&(server->buffer_size), &options) != 0)
{
goto out_disconnect;
}
}
if (options & 2)
server->sign_wanted = 1;
}
else
#endif /* CONFIG_NCPFS_PACKET_SIGNING */
if (ncp_negotiate_buffersize(server, default_bufsize,
&(server->buffer_size)) != 0)
goto out_disconnect;
DPRINTK("ncpfs: bufsize = %d\n", server->buffer_size);
memset(&finfo, 0, sizeof(finfo));
finfo.i.attributes = aDIR;
finfo.i.dataStreamSize = 0; /* ignored */
finfo.i.dirEntNum = 0;
finfo.i.DosDirNum = 0;
#ifdef CONFIG_NCPFS_SMALLDOS
finfo.i.NSCreator = NW_NS_DOS;
#endif
finfo.volume = NCP_NUMBER_OF_VOLUMES;
/* set dates of mountpoint to Jan 1, 1986; 00:00 */
finfo.i.creationTime = finfo.i.modifyTime
= cpu_to_le16(0x0000);
finfo.i.creationDate = finfo.i.modifyDate
= finfo.i.lastAccessDate
= cpu_to_le16(0x0C21);
finfo.i.nameLen = 0;
finfo.i.entryName[0] = '\0';
finfo.opened = 0;
finfo.ino = 2; /* tradition */
server->name_space[finfo.volume] = NW_NS_DOS;
error = -ENOMEM;
root_inode = ncp_iget(sb, &finfo);
if (!root_inode)
goto out_disconnect;
DPRINTK("ncp_fill_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber);
sb->s_root = d_alloc_root(root_inode);
if (!sb->s_root)
goto out_no_root;
sb->s_root->d_op = &ncp_root_dentry_operations;
return 0;
out_no_root:
iput(root_inode);
out_disconnect:
ncp_lock_server(server);
ncp_disconnect(server);
ncp_unlock_server(server);
out_rxbuf:
ncp_stop_tasks(server);
vfree(server->rxbuf);
out_txbuf:
vfree(server->txbuf);
out_packet:
vfree(server->packet);
out_nls:
#ifdef CONFIG_NCPFS_NLS
unload_nls(server->nls_io);
unload_nls(server->nls_vol);
#endif
out_fput2:
if (server->info_filp)
fput(server->info_filp);
out_fput:
/* 23/12/1998 Marcin Dalecki <*****@*****.**>:
*
* The previously used put_filp(ncp_filp); was bogous, since
* it doesn't proper unlocking.
*/
fput(ncp_filp);
out:
put_pid(data.wdog_pid);
sb->s_fs_info = NULL;
kfree(server);
return error;
}
struct super_block *
ncp_read_super(struct super_block *sb, void *raw_data, int silent)
{
struct ncp_mount_data *data = (struct ncp_mount_data *) raw_data;
struct ncp_server *server;
struct file *ncp_filp;
struct inode *root_inode;
kdev_t dev = sb->s_dev;
int error;
#ifdef CONFIG_NCPFS_PACKET_SIGNING
int options;
#endif
struct ncpfs_inode_info finfo;
MOD_INC_USE_COUNT;
if (data == NULL)
goto out_no_data;
if (data->version != NCP_MOUNT_VERSION)
goto out_bad_mount;
ncp_filp = fget(data->ncp_fd);
if (!ncp_filp)
goto out_bad_file;
if (!S_ISSOCK(ncp_filp->f_dentry->d_inode->i_mode))
goto out_bad_file2;
lock_super(sb);
sb->s_blocksize = 1024; /* Eh... Is this correct? */
sb->s_blocksize_bits = 10;
sb->s_magic = NCP_SUPER_MAGIC;
sb->s_dev = dev;
sb->s_op = &ncp_sops;
/* We must malloc our own super-block info */
server = (struct ncp_server *) ncp_kmalloc(sizeof(struct ncp_server),
GFP_KERNEL);
if (server == NULL)
goto out_no_server;
NCP_SBP(sb) = server;
server->ncp_filp = ncp_filp;
server->lock = 0;
server->wait = NULL;
server->packet = NULL;
server->buffer_size = 0;
server->conn_status = 0;
server->root_dentry = NULL;
server->root_setuped = 0;
#ifdef CONFIG_NCPFS_PACKET_SIGNING
server->sign_wanted = 0;
server->sign_active = 0;
#endif
server->auth.auth_type = NCP_AUTH_NONE;
server->auth.object_name_len = 0;
server->auth.object_name = NULL;
server->auth.object_type = 0;
server->priv.len = 0;
server->priv.data = NULL;
server->m = *data;
/* Althought anything producing this is buggy, it happens
now because of PATH_MAX changes.. */
if (server->m.time_out < 10) {
server->m.time_out = 10;
printk(KERN_INFO "You need to recompile your ncpfs utils..\n");
}
server->m.file_mode = (server->m.file_mode &
(S_IRWXU | S_IRWXG | S_IRWXO)) | S_IFREG;
server->m.dir_mode = (server->m.dir_mode &
(S_IRWXU | S_IRWXG | S_IRWXO)) | S_IFDIR;
server->packet_size = NCP_PACKET_SIZE;
server->packet = ncp_kmalloc(NCP_PACKET_SIZE, GFP_KERNEL);
if (server->packet == NULL)
goto out_no_packet;
ncp_lock_server(server);
error = ncp_connect(server);
ncp_unlock_server(server);
if (error < 0)
goto out_no_connect;
DPRINTK(KERN_DEBUG "ncp_read_super: NCP_SBP(sb) = %x\n", (int) NCP_SBP(sb));
#ifdef CONFIG_NCPFS_PACKET_SIGNING
if (ncp_negotiate_size_and_options(server, NCP_DEFAULT_BUFSIZE,
NCP_DEFAULT_OPTIONS, &(server->buffer_size), &options) == 0)
{
if (options != NCP_DEFAULT_OPTIONS)
{
if (ncp_negotiate_size_and_options(server,
NCP_DEFAULT_BUFSIZE,
options & 2,
&(server->buffer_size), &options) != 0)
{
goto out_no_bufsize;
}
}
if (options & 2)
server->sign_wanted = 1;
}
else
#endif /* CONFIG_NCPFS_PACKET_SIGNING */
if (ncp_negotiate_buffersize(server, NCP_DEFAULT_BUFSIZE,
&(server->buffer_size)) != 0)
goto out_no_bufsize;
DPRINTK(KERN_DEBUG "ncpfs: bufsize = %d\n", server->buffer_size);
ncp_init_root(server, &finfo);
server->name_space[finfo.nw_info.i.volNumber] = NW_NS_DOS;
root_inode = ncp_iget(sb, &finfo);
if (!root_inode)
goto out_no_root;
DPRINTK(KERN_DEBUG "ncp_read_super: root vol=%d\n", NCP_FINFO(root_inode)->volNumber);
server->root_dentry = sb->s_root = d_alloc_root(root_inode, NULL);
if (!sb->s_root)
goto out_no_root;
server->root_dentry->d_op = &ncp_dentry_operations;
unlock_super(sb);
return sb;
out_no_root:
printk(KERN_ERR "ncp_read_super: get root inode failed\n");
iput(root_inode);
goto out_disconnect;
out_no_bufsize:
printk(KERN_ERR "ncp_read_super: could not get bufsize\n");
out_disconnect:
ncp_lock_server(server);
ncp_disconnect(server);
ncp_unlock_server(server);
goto out_free_packet;
out_no_connect:
printk(KERN_ERR "ncp_read_super: Failed connection, error=%d\n", error);
out_free_packet:
ncp_kfree_s(server->packet, server->packet_size);
goto out_free_server;
out_no_packet:
printk(KERN_ERR "ncp_read_super: could not alloc packet\n");
out_free_server:
ncp_kfree_s(NCP_SBP(sb), sizeof(struct ncp_server));
goto out_unlock;
out_no_server:
printk(KERN_ERR "ncp_read_super: could not alloc ncp_server\n");
out_unlock:
/* 23/12/1998 Marcin Dalecki <*****@*****.**>:
*
* The previously used put_filp(ncp_filp); was bogous, since
* it doesn't proper unlocking.
*/
fput(ncp_filp);
unlock_super(sb);
goto out;
out_bad_file2:
fput(ncp_filp);
out_bad_file:
printk(KERN_ERR "ncp_read_super: invalid ncp socket\n");
goto out;
out_bad_mount:
printk(KERN_INFO "ncp_read_super: kernel requires mount version %d\n",
NCP_MOUNT_VERSION);
goto out;
out_no_data:
printk(KERN_ERR "ncp_read_super: missing data argument\n");
out:
sb->s_dev = 0;
MOD_DEC_USE_COUNT;
return NULL;
}