From 2fe87f02a04ad6e7075023a87fe38eb458a4bb9d Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 21 Sep 2006 07:02:52 +0000 Subject: [CIFS] Support deep tree mounts (e.g. mounts to //server/share/path) Samba bugzilla #4040 Signed-off-by: Steve French --- fs/cifs/connect.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) (limited to 'fs/cifs/connect.c') diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 5d394c72686..0e9ba0b9d71 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -89,6 +89,7 @@ struct smb_vol { 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 @@ cifs_parse_mount_options(char *options, const char *devname,struct smb_vol *vol) 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 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, 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 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, 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 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, /* we failed translating address */ kfree(volume_info.UNC); kfree(volume_info.password); + kfree(volume_info.prepath); FreeXid(xid); return -EINVAL; } @@ -1651,6 +1677,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, 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(struct super_block *sb, struct cifs_sb_info *cifs_sb, ("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 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, 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 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, else { kfree(volume_info.UNC); kfree(volume_info.password); + kfree(volume_info.prepath); FreeXid(xid); return -EINVAL; } @@ -1710,6 +1740,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, sock_release(csocket); kfree(volume_info.UNC); kfree(volume_info.password); + kfree(volume_info.prepath); FreeXid(xid); return rc; } @@ -1720,6 +1751,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, sock_release(csocket); kfree(volume_info.UNC); kfree(volume_info.password); + kfree(volume_info.prepath); FreeXid(xid); return rc; } else { @@ -1744,6 +1776,7 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, sock_release(csocket); kfree(volume_info.UNC); kfree(volume_info.password); + kfree(volume_info.prepath); FreeXid(xid); return rc; } @@ -1831,6 +1864,14 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, /* 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 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb, 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 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) int xid; struct cifsSesInfo *ses = NULL; struct task_struct *cifsd_task; + char * tmp; xid = GetXid(); @@ -3228,6 +3271,10 @@ cifs_umount(struct super_block *sb, struct cifs_sb_info *cifs_sb) } 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) -- cgit v1.2.3