--- /dev/null
+/*
+ * GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
+ *
+ * libcfs/include/libcfs/libcfs_ioctl.h
+ *
+ * Low-level ioctl data structures. Kernel ioctl functions declared here,
+ * and user space functions are in libcfsutil_ioctl.h.
+ *
+ */
+
+#ifndef __LIBCFS_IOCTL_H__
+#define __LIBCFS_IOCTL_H__
+
+#define LIBCFS_IOCTL_VERSION 0x0001000a
+
+struct libcfs_ioctl_data {
+ __u32 ioc_len;
+ __u32 ioc_version;
+
+ __u64 ioc_nid;
+ __u64 ioc_u64[1];
+
+ __u32 ioc_flags;
+ __u32 ioc_count;
+ __u32 ioc_net;
+ __u32 ioc_u32[7];
+
+ __u32 ioc_inllen1;
+ char *ioc_inlbuf1;
+ __u32 ioc_inllen2;
+ char *ioc_inlbuf2;
+
+ __u32 ioc_plen1; /* buffers in userspace */
+ char *ioc_pbuf1;
+ __u32 ioc_plen2; /* buffers in userspace */
+ char *ioc_pbuf2;
+
+ char ioc_bulk[0];
+};
+
+#define ioc_priority ioc_u32[0]
+
+struct libcfs_ioctl_hdr {
+ __u32 ioc_len;
+ __u32 ioc_version;
+};
+
+struct libcfs_debug_ioctl_data {
+ struct libcfs_ioctl_hdr hdr;
+ unsigned int subs;
+ unsigned int debug;
+};
+
+#define LIBCFS_IOC_INIT(data) \
+do { \
+ memset(&data, 0, sizeof(data)); \
+ data.ioc_version = LIBCFS_IOCTL_VERSION; \
+ data.ioc_len = sizeof(data); \
+} while (0)
+
+struct libcfs_ioctl_handler {
+ struct list_head item;
+ int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_data *data);
+};
+
+#define DECLARE_IOCTL_HANDLER(ident, func) \
+ struct libcfs_ioctl_handler ident = { \
+ /* .item = */ LIST_HEAD_INIT(ident.item), \
+ /* .handle_ioctl = */ func \
+ }
+
+/* FIXME check conflict with lustre_lib.h */
+#define LIBCFS_IOC_DEBUG_MASK _IOWR('f', 250, long)
+
+/* ioctls for manipulating snapshots 30- */
+#define IOC_LIBCFS_TYPE 'e'
+#define IOC_LIBCFS_MIN_NR 30
+/* libcfs ioctls */
+#define IOC_LIBCFS_PANIC _IOWR('e', 30, long)
+#define IOC_LIBCFS_CLEAR_DEBUG _IOWR('e', 31, long)
+#define IOC_LIBCFS_MARK_DEBUG _IOWR('e', 32, long)
+#define IOC_LIBCFS_MEMHOG _IOWR('e', 36, long)
+#define IOC_LIBCFS_PING_TEST _IOWR('e', 37, long)
+/* lnet ioctls */
+#define IOC_LIBCFS_GET_NI _IOWR('e', 50, long)
+#define IOC_LIBCFS_FAIL_NID _IOWR('e', 51, long)
+#define IOC_LIBCFS_ADD_ROUTE _IOWR('e', 52, long)
+#define IOC_LIBCFS_DEL_ROUTE _IOWR('e', 53, long)
+#define IOC_LIBCFS_GET_ROUTE _IOWR('e', 54, long)
+#define IOC_LIBCFS_NOTIFY_ROUTER _IOWR('e', 55, long)
+#define IOC_LIBCFS_UNCONFIGURE _IOWR('e', 56, long)
+#define IOC_LIBCFS_PORTALS_COMPATIBILITY _IOWR('e', 57, long)
+#define IOC_LIBCFS_LNET_DIST _IOWR('e', 58, long)
+#define IOC_LIBCFS_CONFIGURE _IOWR('e', 59, long)
+#define IOC_LIBCFS_TESTPROTOCOMPAT _IOWR('e', 60, long)
+#define IOC_LIBCFS_PING _IOWR('e', 61, long)
+#define IOC_LIBCFS_DEBUG_PEER _IOWR('e', 62, long)
+#define IOC_LIBCFS_LNETST _IOWR('e', 63, long)
+/* lnd ioctls */
+#define IOC_LIBCFS_REGISTER_MYNID _IOWR('e', 70, long)
+#define IOC_LIBCFS_CLOSE_CONNECTION _IOWR('e', 71, long)
+#define IOC_LIBCFS_PUSH_CONNECTION _IOWR('e', 72, long)
+#define IOC_LIBCFS_GET_CONN _IOWR('e', 73, long)
+#define IOC_LIBCFS_DEL_PEER _IOWR('e', 74, long)
+#define IOC_LIBCFS_ADD_PEER _IOWR('e', 75, long)
+#define IOC_LIBCFS_GET_PEER _IOWR('e', 76, long)
+#define IOC_LIBCFS_GET_TXDESC _IOWR('e', 77, long)
+#define IOC_LIBCFS_ADD_INTERFACE _IOWR('e', 78, long)
+#define IOC_LIBCFS_DEL_INTERFACE _IOWR('e', 79, long)
+#define IOC_LIBCFS_GET_INTERFACE _IOWR('e', 80, long)
+
+#define IOC_LIBCFS_MAX_NR 80
+
+static inline int libcfs_ioctl_packlen(struct libcfs_ioctl_data *data)
+{
+ int len = sizeof(*data);
+
+ len += cfs_size_round(data->ioc_inllen1);
+ len += cfs_size_round(data->ioc_inllen2);
+ return len;
+}
+
+static inline int libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data)
+{
+ if (data->ioc_len > (1<<30)) {
+ CERROR("LIBCFS ioctl: ioc_len larger than 1<<30\n");
+ return 1;
+ }
+ if (data->ioc_inllen1 > (1<<30)) {
+ CERROR("LIBCFS ioctl: ioc_inllen1 larger than 1<<30\n");
+ return 1;
+ }
+ if (data->ioc_inllen2 > (1<<30)) {
+ CERROR("LIBCFS ioctl: ioc_inllen2 larger than 1<<30\n");
+ return 1;
+ }
+ if (data->ioc_inlbuf1 && !data->ioc_inllen1) {
+ CERROR("LIBCFS ioctl: inlbuf1 pointer but 0 length\n");
+ return 1;
+ }
+ if (data->ioc_inlbuf2 && !data->ioc_inllen2) {
+ CERROR("LIBCFS ioctl: inlbuf2 pointer but 0 length\n");
+ return 1;
+ }
+ if (data->ioc_pbuf1 && !data->ioc_plen1) {
+ CERROR("LIBCFS ioctl: pbuf1 pointer but 0 length\n");
+ return 1;
+ }
+ if (data->ioc_pbuf2 && !data->ioc_plen2) {
+ CERROR("LIBCFS ioctl: pbuf2 pointer but 0 length\n");
+ return 1;
+ }
+ if (data->ioc_plen1 && !data->ioc_pbuf1) {
+ CERROR("LIBCFS ioctl: plen1 nonzero but no pbuf1 pointer\n");
+ return 1;
+ }
+ if (data->ioc_plen2 && !data->ioc_pbuf2) {
+ CERROR("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n");
+ return 1;
+ }
+ if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_len) {
+ CERROR("LIBCFS ioctl: packlen != ioc_len\n");
+ return 1;
+ }
+ if (data->ioc_inllen1 &&
+ data->ioc_bulk[data->ioc_inllen1 - 1] != '\0') {
+ CERROR("LIBCFS ioctl: inlbuf1 not 0 terminated\n");
+ return 1;
+ }
+ if (data->ioc_inllen2 &&
+ data->ioc_bulk[cfs_size_round(data->ioc_inllen1) +
+ data->ioc_inllen2 - 1] != '\0') {
+ CERROR("LIBCFS ioctl: inlbuf2 not 0 terminated\n");
+ return 1;
+ }
+ return 0;
+}
+
+int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand);
+int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand);
+int libcfs_ioctl_getdata(char *buf, char *end, void *arg);
+int libcfs_ioctl_popdata(void *arg, void *buf, int size);
+
+#endif /* __LIBCFS_IOCTL_H__ */
Code Review / kvmfornfv.git / blobdiff