/* Unmount the filesystem described by mp. */
static int
nwfs_unmount(struct mount *mp, int mntflags)
{
struct nwmount *nmp = VFSTONWFS(mp);
struct ncp_conn *conn;
int error, flags;
NCPVODEBUG("nwfs_unmount: flags=%04x\n",mntflags);
flags = 0;
if (mntflags & MNT_FORCE)
flags |= FORCECLOSE;
/* There is 1 extra root vnode reference from nwfs_mount(). */
error = vflush(mp, 1, flags);
if (error)
return (error);
conn = NWFSTOCONN(nmp);
ncp_conn_puthandle(nmp->connh,NULL,0);
if (ncp_conn_lock(conn, curthread, proc0.p_ucred, NCPM_WRITE | NCPM_EXECUTE) == 0) {
if(ncp_disconnect(conn))
ncp_conn_unlock(conn, curthread);
}
mp->mnt_data = (qaddr_t)0;
if (nmp->m.flags & NWFS_MOUNT_HAVE_NLS)
kfree(nmp->m.nls.to_lower, M_NWFSDATA);
kfree(nmp, M_NWFSDATA);
mp->mnt_flag &= ~MNT_LOCAL;
return (error);
}
static void ncp_put_super(struct super_block *sb)
{
struct ncp_server *server = NCP_SBP(sb);
ncp_lock_server(server);
ncp_disconnect(server);
ncp_unlock_server(server);
ncp_stop_tasks(server);
#ifdef CONFIG_NCPFS_NLS
/* unload the NLS charsets */
unload_nls(server->nls_vol);
unload_nls(server->nls_io);
#endif /* CONFIG_NCPFS_NLS */
if (server->info_filp)
fput(server->info_filp);
fput(server->ncp_filp);
kill_pid(server->m.wdog_pid, SIGTERM, 1);
put_pid(server->m.wdog_pid);
kfree(server->priv.data);
kfree(server->auth.object_name);
vfree(server->rxbuf);
vfree(server->txbuf);
vfree(server->packet);
sb->s_fs_info = NULL;
kfree(server);
}
static void ncp_put_super(struct super_block *sb)
{
struct ncp_server *server = NCP_SBP(sb);
ncp_lock_server(server);
ncp_disconnect(server);
ncp_unlock_server(server);
ncp_stop_tasks(server);
mutex_destroy(&server->rcv.creq_mutex);
mutex_destroy(&server->root_setup_lock);
mutex_destroy(&server->mutex);
if (server->info_sock)
sockfd_put(server->info_sock);
sockfd_put(server->ncp_sock);
kill_pid(server->m.wdog_pid, SIGTERM, 1);
put_pid(server->m.wdog_pid);
bdi_destroy(&server->bdi);
kfree(server->priv.data);
kfree(server->auth.object_name);
vfree(server->rxbuf);
vfree(server->txbuf);
vfree(server->packet);
call_rcu(&server->rcu, delayed_free);
}
static void
ncp_put_super(struct super_block *sb)
{
struct ncp_server *server = NCP_SBP(sb);
lock_super(sb);
ncp_lock_server(server);
ncp_disconnect(server);
ncp_unlock_server(server);
close_fp(server->ncp_filp);
ncp_dont_catch_watchdog(server);
close_fp(server->wdog_filp);
close_fp(server->msg_filp);
ncp_free_all_inodes(server);
ncp_kfree_s(server->packet, server->packet_size);
sb->s_dev = 0;
ncp_kfree_s(NCP_SBP(sb), sizeof(struct ncp_server));
NCP_SBP(sb) = NULL;
unlock_super(sb);
MOD_DEC_USE_COUNT;
}
static int
ncp_find_server_ipx(struct ncp_conn_loginfo *li, int type) {
char server[NCP_BINDERY_NAME_LEN + 1];
int error;
char nearest[NCP_BINDERY_NAME_LEN + 1];
struct nw_property prop;
struct ipx_addr *n_addr = (struct ipx_addr *) ∝
/* struct ncp_conn_loginfo ltmp;*/
int connid;
bzero(server, sizeof(server));
bzero(nearest, sizeof(nearest));
strcpy(server, li->server);
ncp_str_upper(server);
if ((error = sap_find_nearest(type, &li->ipxaddr, nearest)) != 0) {
return error;
}
/* if no server specified return info about nearest */
if (!li->server[0]) {
strcpy(li->server, nearest);
return 0;
}
/* printf("%s\n",ipx_ntoa(li->ipxaddr.sipx_addr));*/
if (strcmp(server, nearest) == 0) {
return 0;
}
/* We have to ask the nearest server for our wanted server */
li->opt=0;
if ((error = ncp_connect(li, &connid)) != 0) {
return error;
}
if (ncp_read_property_value(connid, type, server, 1, "NET_ADDRESS", &prop) != 0) {
ncp_disconnect(connid);
return EHOSTUNREACH;
}
if ((error = ncp_disconnect(connid)) != 0) {
return error;
}
li->ipxaddr.sipx_family = AF_IPX;
li->ipxaddr.sipx_addr.x_net = n_addr->x_net;
li->ipxaddr.sipx_port = n_addr->x_port;
li->ipxaddr.sipx_addr.x_host = n_addr->x_host;
return 0;
}
/*
* read rc file as follows:
* 1. read [server] section
* 2. override with [server:user] section
* Since abcence of rcfile is not a bug, silently ignore that fact.
* rcfile never closed to reduce number of open/close operations.
*/
int
ncp_li_readrc(struct ncp_conn_loginfo *li) {
int i, val, error;
char uname[NCP_BINDERY_NAME_LEN*2+1];
char *sect = NULL, *p;
/*
* if info from cmd line incomplete, try to find existing
* connection and fill server/user from it.
*/
if (li->server[0] == 0 || li->user == NULL) {
int connHandle;
struct ncp_conn_stat cs;
if ((error = ncp_conn_scan(li, &connHandle)) != 0) {
ncp_error("no default connection found", errno);
return error;
}
ncp_conn_getinfo(connHandle, &cs);
ncp_li_setserver(li, cs.li.server);
ncp_li_setuser(li, cs.user);
ncp_li_setpassword(li, "");
ncp_disconnect(connHandle);
}
if (ncp_open_rcfile()) return 0;
for (i = 0; i < 2; i++) {
switch (i) {
case 0:
sect = li->server;
break;
case 1:
strcat(strcat(strcpy(uname,li->server),":"),li->user ? li->user : "******");
sect = uname;
break;
}
rc_getstringptr(ncp_rc, sect, "password", &p);
if (p)
ncp_li_setpassword(li, p);
rc_getint(ncp_rc,sect, "timeout", &li->timeout);
rc_getint(ncp_rc,sect, "retry_count", &li->retry_count);
rc_getint(ncp_rc,sect, "sig_level", &li->sig_level);
if (rc_getint(ncp_rc,sect,"access_mode",&val) == 0)
li->access_mode = val;
if(rc_getbool(ncp_rc,sect,"bindery",&val) == 0 && val) {
li->opt |= NCP_OPT_BIND;
}
}
return 0;
}
/*
* Lookup existing connection based on li structure, if connection
* found, it will be referenced. Otherwise full login sequence performed.
*/
int
ncp_li_login(struct ncp_conn_loginfo *li, int *aconnid) {
int connHandle, error;
if ((error = ncp_conn_scan(li, &connHandle)) == 0) {
*aconnid = connHandle;
return 0;
}
error = ncp_connect(li, &connHandle);
if (error) return errno;
error = ncp_login(connHandle, li->user, li->objtype, li->password);
if (error) {
ncp_disconnect(connHandle);
} else
*aconnid = connHandle;
return error;
}
void
ncp_at_exit(struct proc *p) {
struct ncp_conn *ncp, *nncp;
if (ncp_conn_putprochandles(p) == 0) return;
ncp_conn_locklist(LK_EXCLUSIVE, p);
for (ncp = conn_list.slh_first; ncp; ncp = nncp) {
nncp = ncp->nc_next.sle_next;
if (ncp->ref_cnt != 0) continue;
if (ncp_conn_lock(ncp, p, p->p_ucred,NCPM_READ|NCPM_EXECUTE|NCPM_WRITE))
continue;
if (ncp_disconnect(ncp) != 0)
ncp_conn_unlock(ncp,p);
}
ncp_conn_unlocklist(p);
return;
}
static void
logout(int argc, char *argv[], struct ncp_conn_loginfo *li) {
int error = 0, connid, opt;
connid = -1;
while ((opt = getopt(argc, argv, STDPARAM_OPT"c:")) != -1){
switch (opt) {
case 'c':
connid = atoi(optarg);
break;
case STDPARAM_ARGS:
if (ncp_li_arg(li, opt, optarg))
exit(1);
break;
default:
logout_usage();
/*NOTREACHED*/
}
}
if (connid == -1) {
if (li->server[0] == 0)
errx(EX_USAGE, "no server name specified");
if (li->user == 0)
errx(EX_USAGE, "no user name specified");
if (ncp_conn_scan(li, &connid))
errx(EX_OSERR, "You are not attached to server %s",
li->server);
}
if (ncp_setpermanent(connid, 0) < 0 && errno != EACCES) {
ncp_error("Connection isn't valid", errno);
exit(EX_OSERR);
}
error = ncp_disconnect(connid);
if (error) {
if (errno == EACCES) {
warnx("you logged out, but connection belongs"
"to other user and not closed");
} else {
ncp_error("Can't logout with connid %d", error, connid);
error = 1;
}
}
exit(error ? 1 : 0);
}
void
ncp_done(void) {
struct ncp_conn *ncp, *nncp;
struct proc *p = curproc;
untimeout(ncp_timer,NULL,ncp_timer_handle);
rm_at_exit(ncp_at_exit);
ncp_conn_locklist(LK_EXCLUSIVE, p);
for (ncp = conn_list.slh_first; ncp; ncp = nncp) {
nncp = ncp->nc_next.sle_next;
ncp->ref_cnt = 0;
if (ncp_conn_lock(ncp, p, p->p_ucred,NCPM_READ|NCPM_EXECUTE|NCPM_WRITE)) {
NCPFATAL("Can't lock connection !\n");
continue;
}
if (ncp_disconnect(ncp) != 0)
ncp_conn_unlock(ncp,p);
}
ncp_conn_unlocklist(p);
}
static void ncp_put_super(struct super_block *sb)
{
struct ncp_server *server = NCP_SBP(sb);
ncp_lock_server(server);
ncp_disconnect(server);
ncp_unlock_server(server);
fput(server->ncp_filp);
kill_proc(server->m.wdog_pid, SIGTERM, 1);
if (server->priv.data)
ncp_kfree_s(server->priv.data, server->priv.len);
if (server->auth.object_name)
ncp_kfree_s(server->auth.object_name, server->auth.object_name_len);
ncp_kfree_s(server->packet, server->packet_size);
ncp_kfree_s(NCP_SBP(sb), sizeof(struct ncp_server));
MOD_DEC_USE_COUNT;
}
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 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;
}
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;
}
static int
ncp_conn_handler(struct proc *p, struct sncp_request_args *uap,
struct ncp_conn *conn, struct ncp_handle *hp)
{
int error=0, rqsize, subfn;
struct ucred *cred;
char *pdata;
cred = p->p_ucred;
error = copyin(&uap->ncpbuf->rqsize, &rqsize, sizeof(int));
if (error) return(error);
error = 0;
pdata = uap->ncpbuf->packet;
subfn = *(pdata++) & 0xff;
rqsize--;
switch (subfn) {
case NCP_CONN_READ: case NCP_CONN_WRITE: {
struct ncp_rw rwrq;
struct uio auio;
struct iovec iov;
if (rqsize != sizeof(rwrq)) return (EBADRPC);
error = copyin(pdata,&rwrq,rqsize);
if (error) return (error);
iov.iov_base = rwrq.nrw_base;
iov.iov_len = rwrq.nrw_cnt;
auio.uio_iov = &iov;
auio.uio_iovcnt = 1;
auio.uio_offset = rwrq.nrw_offset;
auio.uio_resid = rwrq.nrw_cnt;
auio.uio_segflg = UIO_USERSPACE;
auio.uio_rw = (subfn == NCP_CONN_READ) ? UIO_READ : UIO_WRITE;
auio.uio_procp = p;
error = ncp_conn_lock(conn,p,cred,NCPM_EXECUTE);
if (error) return(error);
if (subfn == NCP_CONN_READ)
error = ncp_read(conn, &rwrq.nrw_fh, &auio, cred);
else
error = ncp_write(conn, &rwrq.nrw_fh, &auio, cred);
rwrq.nrw_cnt -= auio.uio_resid;
ncp_conn_unlock(conn,p);
p->p_retval[0] = rwrq.nrw_cnt;
break;
} /* case int_read/write */
case NCP_CONN_SETFLAGS: {
u_int16_t mask, flags;
error = copyin(pdata,&mask, sizeof(mask));
if (error) return error;
pdata += sizeof(mask);
error = copyin(pdata,&flags,sizeof(flags));
if (error) return error;
error = ncp_conn_lock(conn,p,cred,NCPM_WRITE);
if (error) return error;
if (mask & NCPFL_PERMANENT) {
conn->flags &= ~NCPFL_PERMANENT;
conn->flags |= (flags & NCPFL_PERMANENT);
}
if (mask & NCPFL_PRIMARY) {
error = ncp_conn_setprimary(conn, flags & NCPFL_PRIMARY);
if (error) {
ncp_conn_unlock(conn,p);
break;
}
}
ncp_conn_unlock(conn,p);
break;
}
case NCP_CONN_LOGIN: {
struct ncp_conn_login la;
if (rqsize != sizeof(la)) return (EBADRPC);
if ((error = copyin(pdata,&la,rqsize)) != 0) break;
error = ncp_conn_lock(conn, p, cred, NCPM_EXECUTE | NCPM_WRITE);
if (error) return error;
error = ncp_login(conn, la.username, la.objtype, la.password, p, p->p_ucred);
ncp_conn_unlock(conn, p);
p->p_retval[0] = error;
break;
}
case NCP_CONN_GETINFO: {
struct ncp_conn_stat ncs;
int len = sizeof(ncs);
error = ncp_conn_lock(conn, p, p->p_ucred, NCPM_READ);
if (error) return error;
ncp_conn_getinfo(conn, &ncs);
copyout(&len, &uap->ncpbuf->rpsize, sizeof(int));
error = copyout(&ncs, &uap->ncpbuf->packet, len);
ncp_conn_unlock(conn, p);
break;
}
case NCP_CONN_GETUSER: {
int len;
error = ncp_conn_lock(conn, p, p->p_ucred, NCPM_READ);
if (error) return error;
len = (conn->li.user) ? strlen(conn->li.user) + 1 : 0;
copyout(&len, &uap->ncpbuf->rpsize, sizeof(int));
if (len) {
error = copyout(conn->li.user, &uap->ncpbuf->packet, len);
}
ncp_conn_unlock(conn, p);
break;
}
case NCP_CONN_CONN2REF: {
int len = sizeof(int);
error = ncp_conn_lock(conn, p, p->p_ucred, NCPM_READ);
if (error) return error;
copyout(&len, &uap->ncpbuf->rpsize, sizeof(int));
if (len) {
error = copyout(&conn->nc_id, &uap->ncpbuf->packet, len);
}
ncp_conn_unlock(conn, p);
break;
}
case NCP_CONN_FRAG: {
struct ncp_conn_frag nf;
if (rqsize != sizeof(nf)) return (EBADRPC);
if ((error = copyin(pdata, &nf, rqsize)) != 0) break;
error = ncp_conn_lock(conn, p, cred, NCPM_EXECUTE);
if (error) return error;
error = ncp_conn_frag_rq(conn, p, &nf);
ncp_conn_unlock(conn, p);
copyout(&nf, &pdata, sizeof(nf));
p->p_retval[0] = error;
break;
}
case NCP_CONN_DUP: {
struct ncp_handle *newhp;
int len = sizeof(NWCONN_HANDLE);
error = ncp_conn_lock(conn, p, cred, NCPM_READ);
if (error) break;
copyout(&len, &uap->ncpbuf->rpsize, len);
error = ncp_conn_gethandle(conn, p, &newhp);
if (!error)
error = copyout(&newhp->nh_id, uap->ncpbuf->packet, len);
ncp_conn_unlock(conn,p);
break;
}
case NCP_CONN_CONNCLOSE: {
error = ncp_conn_lock(conn, p, cred, NCPM_EXECUTE);
if (error) break;
ncp_conn_puthandle(hp, p, 0);
error = ncp_disconnect(conn);
if (error)
ncp_conn_unlock(conn, p);
break;
}
default:
error = EOPNOTSUPP;
}
return error;
}
