patch-2.4.25 linux-2.4.25/fs/smbfs/symlink.c
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- Lines: 91
- Date:
2004-02-18 05:36:31.000000000 -0800
- Orig file:
linux-2.4.24/fs/smbfs/symlink.c
- Orig date:
1969-12-31 16:00:00.000000000 -0800
diff -urN linux-2.4.24/fs/smbfs/symlink.c linux-2.4.25/fs/smbfs/symlink.c
@@ -0,0 +1,90 @@
+/*
+ * symlink.c
+ *
+ * Copyright (C) 2002 by John Newbigin
+ *
+ * Please add a note about your changes to smbfs in the ChangeLog file.
+ */
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/fcntl.h>
+#include <linux/stat.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include <linux/smp_lock.h>
+#include <linux/net.h>
+
+#include <asm/uaccess.h>
+#include <asm/system.h>
+
+#include <linux/smbno.h>
+#include <linux/smb_fs.h>
+
+#include "smb_debug.h"
+#include "proto.h"
+
+int smb_read_link(struct dentry *dentry, char *buffer, int len)
+{
+ char *link;
+ int result;
+ DEBUG1("read link buffer len = %d\n", len);
+
+ result = -ENOMEM;
+ link = kmalloc(SMB_MAXNAMELEN + 1, GFP_KERNEL);
+ if (!link)
+ goto out;
+
+ result = smb_proc_read_link(server_from_dentry(dentry), dentry, link,
+ SMB_MAXNAMELEN);
+ if (result < 0)
+ goto out_free;
+ result = vfs_readlink(dentry, buffer, len, link);
+
+out_free:
+ kfree(link);
+out:
+ return result;
+}
+
+int smb_symlink(struct inode *dir, struct dentry *dentry, const char *oldname)
+{
+ DEBUG1("create symlink %s -> %s/%s\n", oldname, DENTRY_PATH(dentry));
+
+ smb_invalid_dir_cache(dir);
+ return smb_proc_symlink(server_from_dentry(dentry), dentry, oldname);
+}
+
+int smb_follow_link(struct dentry *dentry, struct nameidata *nd)
+{
+ char *link;
+ int result;
+
+ DEBUG1("followlink of %s/%s\n", DENTRY_PATH(dentry));
+
+ result = -ENOMEM;
+ link = kmalloc(SMB_MAXNAMELEN + 1, GFP_KERNEL);
+ if (!link)
+ goto out;
+
+ result = smb_proc_read_link(server_from_dentry(dentry), dentry, link,
+ SMB_MAXNAMELEN);
+ if (result < 0 || result >= SMB_MAXNAMELEN)
+ goto out_free;
+ link[result] = 0;
+
+ result = vfs_follow_link(nd, link);
+
+out_free:
+ kfree(link);
+out:
+ return result;
+}
+
+struct inode_operations smb_link_inode_operations =
+{
+ .readlink = smb_read_link,
+ .follow_link = smb_follow_link,
+};
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