goto dump;
dlen = le32_to_cpu(dn->ch.len) - UBIFS_DATA_NODE_SZ;
+
+ if (ubifs_crypt_is_encrypted(inode)) {
+ err = ubifs_decrypt(inode, dn, &dlen, block);
+ if (err)
+ goto dump;
+ }
+
out_len = UBIFS_BLOCK_SIZE;
err = ubifs_decompress(c, &dn->data, dlen, addr, &out_len,
le16_to_cpu(dn->compr_type));
dlen = le32_to_cpu(dn->ch.len) - UBIFS_DATA_NODE_SZ;
out_len = UBIFS_BLOCK_SIZE;
+
+ if (ubifs_crypt_is_encrypted(inode)) {
+ err = ubifs_decrypt(inode, dn, &dlen, page_block);
+ if (err)
+ goto out_err;
+ }
+
err = ubifs_decompress(c, &dn->data, dlen, addr, &out_len,
le16_to_cpu(dn->compr_type));
if (err || len != out_len)
return 0;
}
+static const char *ubifs_get_link(struct dentry *dentry,
+ struct inode *inode,
+ struct delayed_call *done)
+{
+ int err;
+ struct fscrypt_symlink_data *sd;
+ struct ubifs_inode *ui = ubifs_inode(inode);
+ struct fscrypt_str cstr;
+ struct fscrypt_str pstr;
+
+ if (!ubifs_crypt_is_encrypted(inode))
+ return ui->data;
+
+ if (!dentry)
+ return ERR_PTR(-ECHILD);
+
+ err = fscrypt_get_encryption_info(inode);
+ if (err)
+ return ERR_PTR(err);
+
+ sd = (struct fscrypt_symlink_data *)ui->data;
+ cstr.name = sd->encrypted_path;
+ cstr.len = le16_to_cpu(sd->len);
+
+ if (cstr.len == 0)
+ return ERR_PTR(-ENOENT);
+
+ if ((cstr.len + sizeof(struct fscrypt_symlink_data) - 1) > ui->data_len)
+ return ERR_PTR(-EIO);
+
+ err = fscrypt_fname_alloc_buffer(inode, cstr.len, &pstr);
+ if (err)
+ return ERR_PTR(err);
+
+ err = fscrypt_fname_disk_to_usr(inode, 0, 0, &cstr, &pstr);
+ if (err) {
+ fscrypt_fname_free_buffer(&pstr);
+ return ERR_PTR(err);
+ }
+
+ pstr.name[pstr.len] = '\0';
+
+ // XXX this probably won't happen anymore...
+ if (pstr.name[0] == '\0') {
+ fscrypt_fname_free_buffer(&pstr);
+ return ERR_PTR(-ENOENT);
+ }
+
+ set_delayed_call(done, kfree_link, pstr.name);
+ return pstr.name;
+}
+
+
const struct address_space_operations ubifs_file_address_operations = {
.readpage = ubifs_readpage,
.writepage = ubifs_writepage,
};
const struct inode_operations ubifs_symlink_inode_operations = {
- .readlink = generic_readlink,
- .get_link = simple_get_link,
+ .get_link = ubifs_get_link,
.setattr = ubifs_setattr,
.getattr = ubifs_getattr,
.listxattr = ubifs_listxattr,