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authorStefan Metzmacher <metze@samba.org>2010-08-05 21:15:22 +0200
committerSteve French <sfrench@us.ibm.com>2010-09-29 19:04:31 +0000
commit8713d01db8bf948eb9632726f529ec4f821bb025 (patch)
tree005e84ec721d09e3b661faacbf2ca458e02e9998 /fs/cifs/link.c
parent18bddd1059c5d1e17ad6e49c514c95484aa80a33 (diff)
cifs: implement CIFSCreateMFSymLink()
Signed-off-by: Stefan Metzmacher <metze@samba.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/link.c')
-rw-r--r--fs/cifs/link.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 0473a86031a5..1b2a8c971995 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -133,6 +133,51 @@ CIFSFormatMFSymlink(u8 *buf, unsigned int buf_len, const char *link_str)
return 0;
}
+static int
+CIFSCreateMFSymLink(const int xid, struct cifsTconInfo *tcon,
+ const char *fromName, const char *toName,
+ const struct nls_table *nls_codepage, int remap)
+{
+ int rc;
+ int oplock = 0;
+ __u16 netfid = 0;
+ u8 *buf;
+ unsigned int bytes_written = 0;
+
+ buf = kmalloc(CIFS_MF_SYMLINK_FILE_SIZE, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ rc = CIFSFormatMFSymlink(buf, CIFS_MF_SYMLINK_FILE_SIZE, toName);
+ if (rc != 0) {
+ kfree(buf);
+ return rc;
+ }
+
+ rc = CIFSSMBOpen(xid, tcon, fromName, FILE_CREATE, GENERIC_WRITE,
+ CREATE_NOT_DIR, &netfid, &oplock, NULL,
+ nls_codepage, remap);
+ if (rc != 0) {
+ kfree(buf);
+ return rc;
+ }
+
+ rc = CIFSSMBWrite(xid, tcon, netfid,
+ CIFS_MF_SYMLINK_FILE_SIZE /* length */,
+ 0 /* offset */,
+ &bytes_written, buf, NULL, 0);
+ CIFSSMBClose(xid, tcon, netfid);
+ kfree(buf);
+ if (rc != 0)
+ return rc;
+
+ if (bytes_written != CIFS_MF_SYMLINK_FILE_SIZE)
+ return -EIO;
+
+ return 0;
+}
+
+static int
CIFSQueryMFSymLink(const int xid, struct cifsTconInfo *tcon,
const unsigned char *searchName, char **symlinkinfo,
const struct nls_table *nls_codepage, int remap)