[CIFS] Support deep tree mounts (e.g. mounts to //server/share/path)
Samba bugzilla #4040
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 5d394c7..0e9ba0b 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -89,6 +89,7 @@
unsigned int wsize;
unsigned int sockopt;
unsigned short int port;
+ char * prepath;
};
static int ipv4_connect(struct sockaddr_in *psin_server,
@@ -993,6 +994,28 @@
printk(KERN_WARNING "CIFS: domain name too long\n");
return 1;
}
+ } else if (strnicmp(data, "prefixpath", 10) == 0) {
+ if (!value || !*value) {
+ printk(KERN_WARNING
+ "CIFS: invalid path prefix\n");
+ return 1; /* needs_arg; */
+ }
+ if ((temp_len = strnlen(value, 1024)) < 1024) {
+ if(value[0] != '/')
+ temp_len++; /* missing leading slash */
+ vol->prepath = kmalloc(temp_len+1,GFP_KERNEL);
+ if(vol->prepath == NULL)
+ return 1;
+ if(value[0] != '/') {
+ vol->prepath[0] = '/';
+ strcpy(vol->prepath+1,value);
+ } else
+ strcpy(vol->prepath,value);
+ cFYI(1,("prefix path %s",vol->prepath));
+ } else {
+ printk(KERN_WARNING "CIFS: prefix too long\n");
+ return 1;
+ }
} else if (strnicmp(data, "iocharset", 9) == 0) {
if (!value || !*value) {
printk(KERN_WARNING "CIFS: invalid iocharset specified\n");
@@ -1605,6 +1628,7 @@
if (cifs_parse_mount_options(mount_data, devname, &volume_info)) {
kfree(volume_info.UNC);
kfree(volume_info.password);
+ kfree(volume_info.prepath);
FreeXid(xid);
return -EINVAL;
}
@@ -1619,6 +1643,7 @@
locations such as env variables and files on disk */
kfree(volume_info.UNC);
kfree(volume_info.password);
+ kfree(volume_info.prepath);
FreeXid(xid);
return -EINVAL;
}
@@ -1639,6 +1664,7 @@
/* we failed translating address */
kfree(volume_info.UNC);
kfree(volume_info.password);
+ kfree(volume_info.prepath);
FreeXid(xid);
return -EINVAL;
}
@@ -1651,6 +1677,7 @@
cERROR(1,("Connecting to DFS root not implemented yet"));
kfree(volume_info.UNC);
kfree(volume_info.password);
+ kfree(volume_info.prepath);
FreeXid(xid);
return -EINVAL;
} else /* which servers DFS root would we conect to */ {
@@ -1658,6 +1685,7 @@
("CIFS mount error: No UNC path (e.g. -o unc=//192.168.1.100/public) specified"));
kfree(volume_info.UNC);
kfree(volume_info.password);
+ kfree(volume_info.prepath);
FreeXid(xid);
return -EINVAL;
}
@@ -1672,6 +1700,7 @@
cERROR(1,("CIFS mount error: iocharset %s not found",volume_info.iocharset));
kfree(volume_info.UNC);
kfree(volume_info.password);
+ kfree(volume_info.prepath);
FreeXid(xid);
return -ELIBACC;
}
@@ -1688,6 +1717,7 @@
else {
kfree(volume_info.UNC);
kfree(volume_info.password);
+ kfree(volume_info.prepath);
FreeXid(xid);
return -EINVAL;
}
@@ -1710,6 +1740,7 @@
sock_release(csocket);
kfree(volume_info.UNC);
kfree(volume_info.password);
+ kfree(volume_info.prepath);
FreeXid(xid);
return rc;
}
@@ -1720,6 +1751,7 @@
sock_release(csocket);
kfree(volume_info.UNC);
kfree(volume_info.password);
+ kfree(volume_info.prepath);
FreeXid(xid);
return rc;
} else {
@@ -1744,6 +1776,7 @@
sock_release(csocket);
kfree(volume_info.UNC);
kfree(volume_info.password);
+ kfree(volume_info.prepath);
FreeXid(xid);
return rc;
}
@@ -1831,6 +1864,14 @@
/* Windows ME may prefer this */
cFYI(1,("readsize set to minimum 2048"));
}
+ /* calculate prepath */
+ cifs_sb->prepath = volume_info.prepath;
+ if(cifs_sb->prepath) {
+ cifs_sb->prepathlen = strlen(cifs_sb->prepath);
+ cifs_sb->prepath[0] = CIFS_DIR_SEP(cifs_sb);
+ volume_info.prepath = NULL;
+ } else
+ cifs_sb->prepathlen = 0;
cifs_sb->mnt_uid = volume_info.linux_uid;
cifs_sb->mnt_gid = volume_info.linux_gid;
cifs_sb->mnt_file_mode = volume_info.file_mode;
@@ -2008,6 +2049,7 @@
the password ptr is put in the new session structure (in which case the
password will be freed at unmount time) */
kfree(volume_info.UNC);
+ kfree(volume_info.prepath);
FreeXid(xid);
return rc;
}
@@ -3195,6 +3237,7 @@
int xid;
struct cifsSesInfo *ses = NULL;
struct task_struct *cifsd_task;
+ char * tmp;
xid = GetXid();
@@ -3228,6 +3271,10 @@
}
cifs_sb->tcon = NULL;
+ tmp = cifs_sb->prepath;
+ cifs_sb->prepathlen = 0;
+ cifs_sb->prepath = NULL;
+ kfree(tmp);
if (ses)
schedule_timeout_interruptible(msecs_to_jiffies(500));
if (ses)