static void *
zpl_follow_link(struct dentry *dentry, struct nameidata *nd)
{
cred_t *cr = CRED();
struct inode *ip = dentry->d_inode;
struct iovec iov;
uio_t uio;
char *link;
int error;
crhold(cr);
iov.iov_len = MAXPATHLEN;
iov.iov_base = link = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
uio.uio_iov = &iov;
uio.uio_iovcnt = 1;
uio.uio_resid = (MAXPATHLEN - 1);
uio.uio_segflg = UIO_SYSSPACE;
error = -zfs_readlink(ip, &uio, cr);
if (error) {
kmem_free(link, MAXPATHLEN);
nd_set_link(nd, ERR_PTR(error));
} else {
nd_set_link(nd, link);
}
crfree(cr);
return (NULL);
}
static void *
ospfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
ospfs_symlink_inode_t *oi =
(ospfs_symlink_inode_t *) ospfs_inode(dentry->d_inode->i_ino);
// check for conditional symlink
if (strncmp(oi->oi_symlink, "root?", 5) == 0) {
// find the pivot between first and second paths
int pivot = strchr(oi->oi_symlink, ':') - oi->oi_symlink;
// root user
if (current->uid == 0) {
// use null-terminator to indicate ending
oi->oi_symlink[pivot] = '\0';
nd_set_link(nd, oi->oi_symlink + 5 + 1); // use first path
}
// normal user
else
nd_set_link(nd, oi->oi_symlink + pivot + 1); // use second path
}
else
nd_set_link(nd, oi->oi_symlink);
return (void *) 0;
}
/*
* careful here - this function can get called recursively, so
* we need to be very careful about how much stack we use.
* uio is kmalloced for this reason...
*/
STATIC void *
xfs_vn_follow_link(
struct dentry *dentry,
struct nameidata *nd)
{
char *link;
int error = -ENOMEM;
link = kmalloc(MAXPATHLEN+1, GFP_KERNEL);
if (!link)
goto out_err;
error = -xfs_readlink(XFS_I(dentry->d_inode), link);
if (unlikely(error))
goto out_kfree;
nd_set_link(nd, link);
return NULL;
out_kfree:
kfree(link);
out_err:
nd_set_link(nd, ERR_PTR(error));
return NULL;
}
static void *nfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
struct inode *inode = dentry->d_inode;
struct page *page;
void *err = ERR_PTR(nfs_revalidate_inode(NFS_SERVER(inode), inode));
if (err)
goto read_failed;
page = read_cache_page(&inode->i_data, 0,
(filler_t *)nfs_symlink_filler, inode);
if (IS_ERR(page)) {
err = page;
goto read_failed;
}
if (!PageUptodate(page)) {
err = ERR_PTR(-EIO);
goto getlink_read_error;
}
nd_set_link(nd, kmap(page));
return page;
getlink_read_error:
page_cache_release(page);
read_failed:
nd_set_link(nd, err);
return NULL;
}
/*
* careful here - this function can get called recursively, so
* we need to be very careful about how much stack we use.
* uio is kmalloced for this reason...
*/
STATIC void *
linvfs_follow_link(
struct dentry *dentry,
struct nameidata *nd)
{
vnode_t *vp;
uio_t *uio;
iovec_t iov;
int error;
char *link;
ASSERT(dentry);
ASSERT(nd);
link = (char *)kmalloc(MAXPATHLEN+1, GFP_KERNEL);
if (!link) {
nd_set_link(nd, ERR_PTR(-ENOMEM));
return NULL;
}
uio = (uio_t *)kmalloc(sizeof(uio_t), GFP_KERNEL);
if (!uio) {
kfree(link);
nd_set_link(nd, ERR_PTR(-ENOMEM));
return NULL;
}
vp = LINVFS_GET_VP(dentry->d_inode);
iov.iov_base = link;
iov.iov_len = MAXPATHLEN;
uio->uio_iov = &iov;
uio->uio_offset = 0;
uio->uio_segflg = UIO_SYSSPACE;
uio->uio_resid = MAXPATHLEN;
uio->uio_iovcnt = 1;
VOP_READLINK(vp, uio, 0, NULL, error);
if (error) {
kfree(link);
link = ERR_PTR(-error);
} else {
link[MAXPATHLEN - uio->uio_resid] = '\0';
}
kfree(uio);
nd_set_link(nd, link);
return NULL;
}
static void *
zpl_follow_link(struct dentry *dentry, struct nameidata *nd)
{
char *link = NULL;
int error;
error = zpl_get_link_common(dentry, dentry->d_inode, &link);
if (error)
nd_set_link(nd, ERR_PTR(error));
else
nd_set_link(nd, link);
return (NULL);
}
static void *
v9fs_vfs_follow_link_dotl(struct dentry *dentry, struct nameidata *nd)
{
int retval;
struct p9_fid *fid;
char *link = __getname();
char *target;
P9_DPRINTK(P9_DEBUG_VFS, "%s\n", dentry->d_name.name);
if (!link) {
link = ERR_PTR(-ENOMEM);
goto ndset;
}
fid = v9fs_fid_lookup(dentry);
if (IS_ERR(fid)) {
__putname(link);
link = ERR_CAST(fid);
goto ndset;
}
retval = p9_client_readlink(fid, &target);
if (!retval) {
strcpy(link, target);
kfree(target);
goto ndset;
}
__putname(link);
link = ERR_PTR(retval);
ndset:
nd_set_link(nd, link);
return NULL;
}
static void
HgfsPutlink(struct dentry *dentry, // dentry
struct nameidata *nd) // lookup name information
#endif
{
char *fileName = NULL;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
fileName = cookie;
LOG(6, (KERN_DEBUG "VMware hgfs: %s: put for %s\n",
__func__, fileName));
#else
LOG(6, (KERN_DEBUG "VMware hgfs: %s: put for %s\n",
__func__, dentry->d_name.name));
fileName = nd_get_link(nd);
#endif
if (!IS_ERR(fileName)) {
LOG(6, (KERN_DEBUG "VMware hgfs: %s: putting %s\n",
__func__, fileName));
kfree(fileName);
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 2, 0)
nd_set_link(nd, NULL);
#endif
}
}
static int jffs2_follow_link(struct dentry *dentry, struct nameidata *nd)
{
unsigned char *buf;
buf = jffs2_getlink(JFFS2_SB_INFO(dentry->d_inode->i_sb), JFFS2_INODE_INFO(dentry->d_inode));
nd_set_link(nd, buf);
return 0;
}
static void *configfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
int error = -ENOMEM;
unsigned long page = get_zeroed_page(GFP_KERNEL);
if (page) {
error = configfs_getlink(dentry, (char *)page);
if (!error) {
nd_set_link(nd, (char *)page);
return (void *)page;
}
}
nd_set_link(nd, ERR_PTR(error));
return NULL;
}
/**
* vxfs_immed_follow_link - follow immed symlink
* @dp: dentry for the link
* @np: pathname lookup data for the current path walk
*
* Description:
* vxfs_immed_follow_link restarts the pathname lookup with
* the data obtained from @dp.
*
* Returns:
* Zero on success, else a negative error code.
*/
static int
vxfs_immed_follow_link(struct dentry *dp, struct nameidata *np)
{
struct vxfs_inode_info *vip = VXFS_INO(dp->d_inode);
nd_set_link(np, vip->vii_immed.vi_immed);
return 0;
}
static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
char *buf;
int len = PAGE_SIZE, rc;
mm_segment_t old_fs;
/* Released in ecryptfs_put_link(); only release here on error */
buf = kmalloc(len, GFP_KERNEL);
if (!buf) {
buf = ERR_PTR(-ENOMEM);
goto out;
}
old_fs = get_fs();
set_fs(get_ds());
rc = dentry->d_inode->i_op->readlink(dentry, (char __user *)buf, len);
set_fs(old_fs);
if (rc < 0) {
kfree(buf);
buf = ERR_PTR(rc);
} else
buf[rc] = '\0';
out:
nd_set_link(nd, buf);
return NULL;
}
/**
* vxfs_immed_follow_link - follow immed symlink
* @dp: dentry for the link
* @np: pathname lookup data for the current path walk
*
* Description:
* vxfs_immed_follow_link restarts the pathname lookup with
* the data obtained from @dp.
*
* Returns:
* Zero on success, else a negative error code.
*/
static void *
vxfs_immed_follow_link(struct dentry *dp, struct nameidata *np)
{
struct vxfs_inode_info *vip = VXFS_INO(d_inode(dp));
nd_set_link(np, vip->vii_immed.vi_immed);
return NULL;
}
static void *sf_follow_link(struct dentry *dentry, struct nameidata *nd)
# endif
{
struct inode *inode = dentry->d_inode;
struct sf_glob_info *sf_g = GET_GLOB_INFO(inode->i_sb);
struct sf_inode_info *sf_i = GET_INODE_INFO(inode);
int error = -ENOMEM;
char *path = (char*)get_zeroed_page(GFP_KERNEL);
int rc;
if (path)
{
error = 0;
rc = vboxReadLink(&client_handle, &sf_g->map, sf_i->path, PATH_MAX, path);
if (RT_FAILURE(rc))
{
LogFunc(("vboxReadLink failed, caller=%s, rc=%Rrc\n", __func__, rc));
free_page((unsigned long)path);
error = -EPROTO;
}
}
# if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
return error ? ERR_PTR(error) : (*cookie = path);
# else
nd_set_link(nd, error ? ERR_PTR(error) : path);
return NULL;
# endif
}
static void *
CVE_2011_2928_linux2_6_23_befs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
char *link;
if (befs_ino->i_flags & BEFS_LONG_SYMLINK) {
struct super_block *sb = dentry->d_sb;
befs_data_stream *data = &befs_ino->i_data.ds;
befs_off_t len = data->size;
befs_debug(sb, "Follow long symlink");
link = kmalloc(len, GFP_NOFS);
if (!link) {
link = ERR_PTR(-ENOMEM);
} else if (befs_read_lsymlink(sb, data, link, len) != len) {
kfree(link);
befs_error(sb, "Failed to read entire long symlink");
link = ERR_PTR(-EIO);
}
} else {
link = befs_ino->i_data.symlink;
}
nd_set_link(nd, link);
return NULL;
}
static void *
befs_fast_follow_link(struct dentry *dentry, struct nameidata *nd)
{
befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
nd_set_link(nd, befs_ino->i_data.symlink);
return NULL;
}
static void *wrapfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
char *buf;
int len = PAGE_SIZE, err;
mm_segment_t old_fs;
/* This is freed by the put_link method assuming a successful call. */
buf = kmalloc(len, GFP_KERNEL);
if (!buf) {
buf = ERR_PTR(-ENOMEM);
goto out;
}
/* read the symlink, and then we will follow it */
old_fs = get_fs();
set_fs(KERNEL_DS);
err = wrapfs_readlink(dentry, buf, len);
set_fs(old_fs);
if (err < 0) {
kfree(buf);
buf = ERR_PTR(err);
} else {
buf[err] = '\0';
}
out:
nd_set_link(nd, buf);
return NULL;
}
static void *exofs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
struct exofs_i_info *oi = exofs_i(dentry->d_inode);
nd_set_link(nd, (char *)oi->i_data);
return NULL;
}
static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
char *buf;
int len = PAGE_SIZE, rc;
mm_segment_t old_fs;
/* Released in ecryptfs_put_link(); only release here on error */
buf = kmalloc(len, GFP_KERNEL);
if (!buf) {
rc = -ENOMEM;
goto out;
}
old_fs = get_fs();
set_fs(get_ds());
ecryptfs_printk(KERN_DEBUG, "Calling readlink w/ "
"dentry->d_name.name = [%s]\n", dentry->d_name.name);
rc = dentry->d_inode->i_op->readlink(dentry, (char __user *)buf, len);
set_fs(old_fs);
if (rc < 0)
goto out_free;
else
buf[rc] = '\0';
rc = 0;
nd_set_link(nd, buf);
goto out;
out_free:
kfree(buf);
out:
return ERR_PTR(rc);
}
static void *jffs2_follow_link(struct dentry *dentry, struct nameidata *nd)
{
struct jffs2_inode_info *f = JFFS2_INODE_INFO(dentry->d_inode);
char *p = (char *)f->target;
/*
* We don't acquire the f->sem mutex here since the only data we
* use is f->target.
*
* 1. If we are here the inode has already built and f->target has
* to point to the target path.
* 2. Nobody uses f->target (if the inode is symlink's inode). The
* exception is inode freeing function which frees f->target. But
* it can't be called while we are here and before VFS has
* stopped using our f->target string which we provide by means of
* nd_set_link() call.
*/
if (!p) {
printk(KERN_ERR "jffs2_follow_link(): can't find symlink target\n");
p = ERR_PTR(-EIO);
}
D1(printk(KERN_DEBUG "jffs2_follow_link(): target path is '%s'\n", (char *) f->target));
nd_set_link(nd, p);
/*
* We will unlock the f->sem mutex but VFS will use the f->target string. This is safe
* since the only way that may cause f->target to be changed is iput() operation.
* But VFS will not use f->target after iput() has been called.
*/
return NULL;
}
/*
* The inode of symbolic link is different to data stream.
* The data stream become link name. Unless the LONG_SYMLINK
* flag is set.
*/
static void *
befs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
struct super_block *sb = dentry->d_sb;
befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
befs_data_stream *data = &befs_ino->i_data.ds;
befs_off_t len = data->size;
char *link;
if (len == 0) {
befs_error(sb, "Long symlink with illegal length");
link = ERR_PTR(-EIO);
} else {
befs_debug(sb, "Follow long symlink");
link = kmalloc(len, GFP_NOFS);
if (!link) {
link = ERR_PTR(-ENOMEM);
} else if (befs_read_lsymlink(sb, data, link, len) != len) {
kfree(link);
befs_error(sb, "Failed to read entire long symlink");
link = ERR_PTR(-EIO);
} else {
link[len - 1] = '\0';
}
}
nd_set_link(nd, link);
return NULL;
}
const char *
zpl_follow_link(struct dentry *dentry, void **symlink_cookie)
#endif
{
cred_t *cr = CRED();
struct inode *ip = dentry->d_inode;
struct iovec iov;
uio_t uio;
char *link;
int error;
fstrans_cookie_t cookie;
crhold(cr);
iov.iov_len = MAXPATHLEN;
iov.iov_base = link = kmem_zalloc(MAXPATHLEN, KM_SLEEP);
uio.uio_iov = &iov;
uio.uio_iovcnt = 1;
uio.uio_skip = 0;
uio.uio_resid = (MAXPATHLEN - 1);
uio.uio_segflg = UIO_SYSSPACE;
cookie = spl_fstrans_mark();
error = -zfs_readlink(ip, &uio, cr);
spl_fstrans_unmark(cookie);
if (error)
kmem_free(link, MAXPATHLEN);
crfree(cr);
#ifdef HAVE_FOLLOW_LINK_NAMEIDATA
if (error)
nd_set_link(nd, ERR_PTR(error));
else
nd_set_link(nd, link);
return (NULL);
#else
if (error)
return (ERR_PTR(error));
else
return (*symlink_cookie = link);
#endif
}
static int
HgfsFollowlink(struct dentry *dentry, // IN: Dentry containing link
struct nameidata *nd) // OUT: Contains target dentry
#endif
{
HgfsAttrInfo attr;
char *fileName = NULL;
int error;
ASSERT(dentry);
#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 2, 0)
ASSERT(nd);
#endif
if (!dentry) {
LOG(4, (KERN_DEBUG "VMware hgfs: HgfsFollowlink: null input\n"));
error = -EINVAL;
goto out;
}
LOG(6, (KERN_DEBUG "VMware hgfs: %s: calling HgfsPrivateGetattr %s\n",
__func__, dentry->d_name.name));
error = HgfsPrivateGetattr(dentry, &attr, &fileName);
LOG(6, (KERN_DEBUG "VMware hgfs: %s: HgfsPrivateGetattr %s ret %d\n",
__func__, dentry->d_name.name, error));
if (!error) {
/* Let's make sure we got called on a symlink. */
if (attr.type != HGFS_FILE_TYPE_SYMLINK || fileName == NULL) {
LOG(6, (KERN_DEBUG "VMware hgfs: HgfsFollowlink: got called "
"on something that wasn't a symlink\n"));
error = -EINVAL;
kfree(fileName);
} else {
LOG(6, (KERN_DEBUG "VMware hgfs: %s: calling nd_set_link %s\n",
__func__, fileName));
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
*cookie = fileName;
#else
nd_set_link(nd, fileName);
#endif
}
}
out:
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 2, 0)
if (!error) {
return *cookie;
} else {
return ERR_PTR(error);
}
#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 13)
return ERR_PTR(error);
#else
return error;
#endif
}
static int sysfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
int error = -ENOMEM;
unsigned long page = get_zeroed_page(GFP_KERNEL);
if (page)
error = sysfs_getlink(dentry, (char *) page);
nd_set_link(nd, error ? ERR_PTR(error) : (char *)page);
return 0;
}
void *
cifs_follow_link(struct dentry *direntry, struct nameidata *nd)
{
struct inode *inode = direntry->d_inode;
int rc = -EACCES;
int xid;
char *full_path = NULL;
char * target_path = ERR_PTR(-ENOMEM);
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *pTcon;
xid = GetXid();
full_path = build_path_from_dentry(direntry);
if (!full_path)
goto out_no_free;
cFYI(1, ("Full path: %s inode = 0x%p", full_path, inode));
cifs_sb = CIFS_SB(inode->i_sb);
pTcon = cifs_sb->tcon;
target_path = kmalloc(PATH_MAX, GFP_KERNEL);
if (!target_path) {
target_path = ERR_PTR(-ENOMEM);
goto out;
}
/* BB add read reparse point symlink code and Unix extensions symlink code here BB */
if (pTcon->ses->capabilities & CAP_UNIX)
rc = CIFSSMBUnixQuerySymLink(xid, pTcon, full_path,
target_path,
PATH_MAX-1,
cifs_sb->local_nls);
else {
/* rc = CIFSSMBQueryReparseLinkInfo */
/* BB Add code to Query ReparsePoint info */
/* BB Add MAC style xsymlink check here if enabled */
}
if (rc == 0) {
/* BB Add special case check for Samba DFS symlinks */
target_path[PATH_MAX-1] = 0;
} else {
kfree(target_path);
target_path = ERR_PTR(rc);
}
out:
kfree(full_path);
out_no_free:
FreeXid(xid);
nd_set_link(nd, target_path);
return NULL; /* No cookie */
}
void *
cifs_follow_link(struct dentry *direntry, struct nameidata *nd)
{
struct inode *inode = d_inode(direntry);
int rc = -ENOMEM;
unsigned int xid;
char *full_path = NULL;
char *target_path = NULL;
struct cifs_sb_info *cifs_sb = CIFS_SB(inode->i_sb);
struct tcon_link *tlink = NULL;
struct cifs_tcon *tcon;
struct TCP_Server_Info *server;
xid = get_xid();
tlink = cifs_sb_tlink(cifs_sb);
if (IS_ERR(tlink)) {
rc = PTR_ERR(tlink);
tlink = NULL;
goto out;
}
tcon = tlink_tcon(tlink);
server = tcon->ses->server;
full_path = build_path_from_dentry(direntry);
if (!full_path)
goto out;
cifs_dbg(FYI, "Full path: %s inode = 0x%p\n", full_path, inode);
rc = -EACCES;
/*
* First try Minshall+French Symlinks, if configured
* and fallback to UNIX Extensions Symlinks.
*/
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS)
rc = query_mf_symlink(xid, tcon, cifs_sb, full_path,
&target_path);
if (rc != 0 && server->ops->query_symlink)
rc = server->ops->query_symlink(xid, tcon, full_path,
&target_path, cifs_sb);
kfree(full_path);
out:
if (rc != 0) {
kfree(target_path);
target_path = ERR_PTR(rc);
}
free_xid(xid);
if (tlink)
cifs_put_tlink(tlink);
nd_set_link(nd, target_path);
return NULL;
}
static void *
ospfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
ospfs_symlink_inode_t *oi =
(ospfs_symlink_inode_t *) ospfs_inode(dentry->d_inode->i_ino);
// Exercise: Your code here.
nd_set_link(nd, oi->oi_symlink);
return (void *) 0;
}
int
#endif
vnode_iop_follow_link(
DENT_T *dentry, /* link */
struct nameidata *nd /* link resolution */
)
{
INODE_T *ip;
struct uio uio;
iovec_t iov;
int err = 0;
char *buf = KMEM_ALLOC(PATH_MAX, KM_SLEEP);
CALL_DATA_T cd;
if (buf == NULL)
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,13)
return ERR_PTR(-ENOMEM);
#else
return -ENOMEM;
#endif
uio.uio_iov = &iov;
mfs_uioset(&uio, buf, PATH_MAX-1, 0, UIO_SYSSPACE);
mdki_linux_init_call_data(&cd);
ip = dentry->d_inode;
ASSERT_KERNEL_UNLOCKED();
ASSERT_I_SEM_NOT_MINE(ip);
err = VOP_READLINK(ITOV(ip), &uio, &cd);
err = mdki_errno_unix_to_linux(err);
mdki_linux_destroy_call_data(&cd);
if (err == 0) {
if (uio.uio_resid == 0)
err = -ENAMETOOLONG;
else {
/* readlink doesn't copy a NUL at the end, we must do it */
buf[uio.uio_offset] = '\0';
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,13)
/* follow the link */
err = vfs_follow_link(nd, buf);
#else
nd_set_link(nd, buf);
return(buf); /* vnop_iop_put_link() will free this buf. */
#endif
}
}
KMEM_FREE(buf, PATH_MAX);
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,13)
return ERR_PTR(err);
#else
return(err);
#endif
}
static void *sysfs_follow_link(struct dentry *dentry, struct nameidata *nd)
{
int error = -ENOMEM;
unsigned long page = get_zeroed_page(GFP_KERNEL);
if (page) {
error = sysfs_getlink(dentry, (char *) page);
if (error < 0)
free_page((unsigned long)page);
}
nd_set_link(nd, error ? ERR_PTR(error) : (char *)page);
return NULL;
}
/**
* \<\<private\>\> Provides symlink resolution.
* Supplies the pathname of the target entry that the symlink refers to.
* This code is adapted from sysfs/symlink.c.
* - allocates a whole page for the pathname (faster than kmalloc)
* - extracts the symlink from the dentry
* - asks the symlink for path resolution
*
* @param *dentry - points to the dentry of the symlink that is to be
* resolved
* @param *nd - where the pathname is to be stored
* @return NULL upon success
*/
static void* tcmi_ctlfs_symlink_follow_link(struct dentry *dentry, struct nameidata *nd)
{
int error = -ENOMEM;
unsigned long page = get_zeroed_page(GFP_ATOMIC);
struct tcmi_ctlfs_symlink *symlink;
if (page) {
symlink = TCMI_CTLFS_SYMLINK(TCMI_CTLFS_DENTRY_TO_ENTRY(dentry));
error = tcmi_ctlfs_symlink_get_link(symlink, (char *) page, PAGE_SIZE);
}
nd_set_link(nd, error ? ERR_PTR(error) : (char *)page);
return NULL;
}
