diff options
Diffstat (limited to 'drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h')
| -rw-r--r-- | drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h | 161 |
1 files changed, 38 insertions, 123 deletions
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h index 5ca99bd6f4e9..4b9102bd95d5 100644 --- a/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h +++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_ioctl.h @@ -34,13 +34,16 @@ * 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. + * and user space functions are in libcfs/util/ioctl.h. * */ #ifndef __LIBCFS_IOCTL_H__ #define __LIBCFS_IOCTL_H__ +#include <linux/types.h> +#include <linux/ioctl.h> + #define LIBCFS_IOCTL_VERSION 0x0001000a #define LIBCFS_IOCTL_VERSION2 0x0001000b @@ -49,6 +52,9 @@ struct libcfs_ioctl_hdr { __u32 ioc_version; }; +/** max size to copy from userspace */ +#define LIBCFS_IOC_DATA_MAX (128 * 1024) + struct libcfs_ioctl_data { struct libcfs_ioctl_hdr ioc_hdr; @@ -73,67 +79,48 @@ struct libcfs_ioctl_data { char ioc_bulk[0]; }; -#define ioc_priority ioc_u32[0] - 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_hdr *hdr); -}; - -#define DECLARE_IOCTL_HANDLER(ident, func) \ - 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 -/* FIXME check conflict with lustre_lib.h */ -#define LIBCFS_IOC_DEBUG_MASK _IOWR('f', 250, long) - -#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, 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) +/* IOC_LIBCFS_PANIC obsolete in 2.8.0, was _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) +/* IOC_LIBCFS_MEMHOG obsolete in 2.8.0, was _IOWR('e', 36, IOCTL_LIBCFS_TYPE) */ /* lnet ioctls */ -#define IOC_LIBCFS_GET_NI _IOWR('e', 50, long) -#define IOC_LIBCFS_FAIL_NID _IOWR('e', 51, 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) -#define IOC_LIBCFS_LNET_FAULT _IOWR('e', 64, long) +#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) +/* 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) +/* 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, 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_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) /* ioctl 77 is free for use */ -#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_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. @@ -155,76 +142,4 @@ struct libcfs_ioctl_handler { #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; -} - -static inline bool libcfs_ioctl_is_invalid(struct libcfs_ioctl_data *data) -{ - 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) { - 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_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; -} - -int libcfs_register_ioctl(struct libcfs_ioctl_handler *hand); -int libcfs_deregister_ioctl(struct libcfs_ioctl_handler *hand); -int libcfs_ioctl_getdata_len(const struct libcfs_ioctl_hdr __user *arg, - __u32 *buf_len); -int libcfs_ioctl_popdata(void __user *arg, void *buf, int size); -int libcfs_ioctl_data_adjust(struct libcfs_ioctl_data *data); - #endif /* __LIBCFS_IOCTL_H__ */ |