/*
* Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
+ *
+ * Copyright (c) 2013, 2014, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
#ifndef __LIBCFS_IOCTL_H__
#define __LIBCFS_IOCTL_H__
-
#define LIBCFS_IOCTL_VERSION 0x0001000a
+#define LIBCFS_IOCTL_VERSION2 0x0001000b
+
+struct libcfs_ioctl_hdr {
+ __u32 ioc_len;
+ __u32 ioc_version;
+};
+
+/** max size to copy from userspace */
+#define LIBCFS_IOC_DATA_MAX (128 * 1024)
struct libcfs_ioctl_data {
- __u32 ioc_len;
- __u32 ioc_version;
+ struct libcfs_ioctl_hdr ioc_hdr;
- __u64 ioc_nid;
- __u64 ioc_u64[1];
+ __u64 ioc_nid;
+ __u64 ioc_u64[1];
- __u32 ioc_flags;
- __u32 ioc_count;
- __u32 ioc_net;
- __u32 ioc_u32[7];
+ __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_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;
+ __u32 ioc_plen1; /* buffers in userspace */
+ char __user *ioc_pbuf1;
+ __u32 ioc_plen2; /* buffers in userspace */
+ char __user *ioc_pbuf2;
- char ioc_bulk[0];
+ 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;
+ 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); \
+#define LIBCFS_IOC_INIT(data) \
+do { \
+ memset(&data, 0, sizeof(data)); \
+ data.ioc_hdr.ioc_version = LIBCFS_IOCTL_VERSION; \
+ data.ioc_hdr.ioc_len = sizeof(data); \
} while (0)
+#define LIBCFS_IOC_INIT_V2(data, hdr) \
+do { \
+ memset(&(data), 0, sizeof(data)); \
+ (data).hdr.ioc_version = LIBCFS_IOCTL_VERSION2; \
+ (data).hdr.ioc_len = sizeof(data); \
+} while (0)
+
+
#ifdef __KERNEL__
struct libcfs_ioctl_handler {
struct list_head item;
- int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_data *data);
+ int (*handle_ioctl)(unsigned int cmd, struct libcfs_ioctl_hdr *hdr);
};
#define DECLARE_IOCTL_HANDLER(ident, func) \
- struct libcfs_ioctl_handler ident = { \
+ static struct libcfs_ioctl_handler ident = { \
/* .item = */ LIST_HEAD_INIT(ident.item), \
/* .handle_ioctl = */ func \
}
/* 'f' ioctls are defined in lustre_ioctl.h and lustre_user.h except for: */
#define LIBCFS_IOC_DEBUG_MASK _IOWR('f', 250, long)
+#define IOCTL_LIBCFS_TYPE long
/* ioctls for manipulating snapshots 30- */
-#define IOC_LIBCFS_TYPE 'e'
-#define IOC_LIBCFS_MIN_NR 30
+#define IOC_LIBCFS_TYPE ('e')
+#define IOC_LIBCFS_MIN_NR 30
/* libcfs ioctls */
#define IOC_LIBCFS_PANIC _IOWR('e', 30, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_CLEAR_DEBUG _IOWR('e', 31, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_MARK_DEBUG _IOWR('e', 32, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_MEMHOG _IOWR('e', 36, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_PING_TEST _IOWR('e', 37, IOCTL_LIBCFS_TYPE)
/* lnet ioctls */
-#define IOC_LIBCFS_GET_NI _IOWR('e', 50, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_FAIL_NID _IOWR('e', 51, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_ADD_ROUTE _IOWR('e', 52, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_DEL_ROUTE _IOWR('e', 53, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_GET_ROUTE _IOWR('e', 54, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_NOTIFY_ROUTER _IOWR('e', 55, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_UNCONFIGURE _IOWR('e', 56, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_GET_NI _IOWR('e', 50, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_FAIL_NID _IOWR('e', 51, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_NOTIFY_ROUTER _IOWR('e', 55, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_UNCONFIGURE _IOWR('e', 56, IOCTL_LIBCFS_TYPE)
#define IOC_LIBCFS_PORTALS_COMPATIBILITY _IOWR('e', 57, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_LNET_DIST _IOWR('e', 58, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_CONFIGURE _IOWR('e', 59, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_TESTPROTOCOMPAT _IOWR('e', 60, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_PING _IOWR('e', 61, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_DEBUG_PEER _IOWR('e', 62, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_LNETST _IOWR('e', 63, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_LNET_DIST _IOWR('e', 58, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_CONFIGURE _IOWR('e', 59, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_TESTPROTOCOMPAT _IOWR('e', 60, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_PING _IOWR('e', 61, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_DEBUG_PEER _IOWR('e', 62, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_LNETST _IOWR('e', 63, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_LNET_FAULT _IOWR('e', 64, IOCTL_LIBCFS_TYPE)
/* lnd ioctls */
-#define IOC_LIBCFS_REGISTER_MYNID _IOWR('e', 70, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_CLOSE_CONNECTION _IOWR('e', 71, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_PUSH_CONNECTION _IOWR('e', 72, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_GET_CONN _IOWR('e', 73, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_DEL_PEER _IOWR('e', 74, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_ADD_PEER _IOWR('e', 75, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_GET_PEER _IOWR('e', 76, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_GET_TXDESC _IOWR('e', 77, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_ADD_INTERFACE _IOWR('e', 78, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_DEL_INTERFACE _IOWR('e', 79, IOCTL_LIBCFS_TYPE)
-#define IOC_LIBCFS_GET_INTERFACE _IOWR('e', 80, IOCTL_LIBCFS_TYPE)
-
-#define IOC_LIBCFS_MAX_NR 80
+#define IOC_LIBCFS_REGISTER_MYNID _IOWR('e', 70, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_CLOSE_CONNECTION _IOWR('e', 71, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_PUSH_CONNECTION _IOWR('e', 72, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_GET_CONN _IOWR('e', 73, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_DEL_PEER _IOWR('e', 74, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_ADD_PEER _IOWR('e', 75, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_GET_PEER _IOWR('e', 76, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_GET_TXDESC _IOWR('e', 77, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_ADD_INTERFACE _IOWR('e', 78, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_DEL_INTERFACE _IOWR('e', 79, IOCTL_LIBCFS_TYPE)
+#define IOC_LIBCFS_GET_INTERFACE _IOWR('e', 80, IOCTL_LIBCFS_TYPE)
+
+
+/*
+ * DLC Specific IOCTL numbers.
+ * In order to maintain backward compatibility with any possible external
+ * tools which might be accessing the IOCTL numbers, a new group of IOCTL
+ * number have been allocated.
+ */
+#define IOCTL_CONFIG_SIZE struct lnet_ioctl_config_data
+#define IOC_LIBCFS_ADD_ROUTE _IOWR(IOC_LIBCFS_TYPE, 81, \
+ IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_DEL_ROUTE _IOWR(IOC_LIBCFS_TYPE, 82, \
+ IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_GET_ROUTE _IOWR(IOC_LIBCFS_TYPE, 83, \
+ IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_ADD_NET _IOWR(IOC_LIBCFS_TYPE, 84, \
+ IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_DEL_NET _IOWR(IOC_LIBCFS_TYPE, 85, \
+ IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_GET_NET _IOWR(IOC_LIBCFS_TYPE, 86, \
+ IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_CONFIG_RTR _IOWR(IOC_LIBCFS_TYPE, 87, \
+ IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_ADD_BUF _IOWR(IOC_LIBCFS_TYPE, 88, \
+ IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_GET_BUF _IOWR(IOC_LIBCFS_TYPE, 89, \
+ IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_GET_PEER_INFO _IOWR(IOC_LIBCFS_TYPE, 90, \
+ IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_GET_LNET_STATS _IOWR(IOC_LIBCFS_TYPE, 91, \
+ IOCTL_CONFIG_SIZE)
+#define IOC_LIBCFS_MAX_NR 91
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;
+ 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)
+static inline bool 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;
+ if (data->ioc_hdr.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 == 0) {
+ CERROR("LIBCFS ioctl: inlbuf1 pointer but 0 length\n");
+ return 1;
+ }
+ if (data->ioc_inlbuf2 && data->ioc_inllen2 == 0) {
+ CERROR("LIBCFS ioctl: inlbuf2 pointer but 0 length\n");
+ return 1;
+ }
+ if (data->ioc_pbuf1 && data->ioc_plen1 == 0) {
+ CERROR("LIBCFS ioctl: pbuf1 pointer but 0 length\n");
+ return 1;
+ }
+ if (data->ioc_pbuf2 && data->ioc_plen2 == 0) {
+ CERROR("LIBCFS ioctl: pbuf2 pointer but 0 length\n");
+ return 1;
+ }
+ if (data->ioc_plen1 && data->ioc_pbuf1 == 0) {
+ CERROR("LIBCFS ioctl: plen1 nonzero but no pbuf1 pointer\n");
+ return 1;
+ }
+ if (data->ioc_plen2 && data->ioc_pbuf2 == 0) {
+ CERROR("LIBCFS ioctl: plen2 nonzero but no pbuf2 pointer\n");
+ return 1;
+ }
+ if ((__u32)libcfs_ioctl_packlen(data) != data->ioc_hdr.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;
}
#ifdef __KERNEL__
extern int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand);
extern int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand);
-extern int libcfs_ioctl_getdata(char *buf, char *end, void *arg);
-extern int libcfs_ioctl_popdata(void *arg, void *buf, int size);
+extern int libcfs_ioctl_getdata(struct libcfs_ioctl_hdr **hdr_pp,
+ struct libcfs_ioctl_hdr __user *uparam);
+
+static inline int libcfs_ioctl_popdata(struct libcfs_ioctl_hdr *hdr,
+ struct libcfs_ioctl_hdr __user *uparam)
+{
+ if (copy_to_user(uparam, hdr, hdr->ioc_len))
+ return -EFAULT;
+ return 0;
+}
+
+static inline void libcfs_ioctl_freedata(struct libcfs_ioctl_hdr *hdr)
+{
+ LIBCFS_FREE(hdr, hdr->ioc_len);
+}
+
+#endif
-#endif
+extern int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data);
#endif /* __LIBCFS_IOCTL_H__ */