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-rw-r--r--fs/orangefs/protocol.h362
1 files changed, 362 insertions, 0 deletions
diff --git a/fs/orangefs/protocol.h b/fs/orangefs/protocol.h
new file mode 100644
index 000000000..d403cf29a
--- /dev/null
+++ b/fs/orangefs/protocol.h
@@ -0,0 +1,362 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/spinlock_types.h>
+#include <linux/slab.h>
+#include <linux/ioctl.h>
+
+/* khandle stuff ***********************************************************/
+
+/*
+ * The 2.9 core will put 64 bit handles in here like this:
+ * 1234 0000 0000 5678
+ * The 3.0 and beyond cores will put 128 bit handles in here like this:
+ * 1234 5678 90AB CDEF
+ * The kernel module will always use the first four bytes and
+ * the last four bytes as an inum.
+ */
+struct orangefs_khandle {
+ unsigned char u[16];
+} __aligned(8);
+
+/*
+ * kernel version of an object ref.
+ */
+struct orangefs_object_kref {
+ struct orangefs_khandle khandle;
+ __s32 fs_id;
+ __s32 __pad1;
+};
+
+/*
+ * compare 2 khandles assumes little endian thus from large address to
+ * small address
+ */
+static inline int ORANGEFS_khandle_cmp(const struct orangefs_khandle *kh1,
+ const struct orangefs_khandle *kh2)
+{
+ int i;
+
+ for (i = 15; i >= 0; i--) {
+ if (kh1->u[i] > kh2->u[i])
+ return 1;
+ if (kh1->u[i] < kh2->u[i])
+ return -1;
+ }
+
+ return 0;
+}
+
+static inline void ORANGEFS_khandle_to(const struct orangefs_khandle *kh,
+ void *p, int size)
+{
+
+ memcpy(p, kh->u, 16);
+ memset(p + 16, 0, size - 16);
+
+}
+
+static inline void ORANGEFS_khandle_from(struct orangefs_khandle *kh,
+ void *p, int size)
+{
+ memset(kh, 0, 16);
+ memcpy(kh->u, p, 16);
+
+}
+
+/* pvfs2-types.h ************************************************************/
+
+#define ORANGEFS_SUPER_MAGIC 0x20030528
+
+/*
+ * ORANGEFS error codes are a signed 32-bit integer. Error codes are negative, but
+ * the sign is stripped before decoding.
+ */
+
+/* Bit 31 is not used since it is the sign. */
+
+/*
+ * Bit 30 specifies that this is a ORANGEFS error. A ORANGEFS error is either an
+ * encoded errno value or a ORANGEFS protocol error.
+ */
+#define ORANGEFS_ERROR_BIT (1 << 30)
+
+/*
+ * Bit 29 specifies that this is a ORANGEFS protocol error and not an encoded
+ * errno value.
+ */
+#define ORANGEFS_NON_ERRNO_ERROR_BIT (1 << 29)
+
+/*
+ * Bits 9, 8, and 7 specify the error class, which encodes the section of
+ * server code the error originated in for logging purposes. It is not used
+ * in the kernel except to be masked out.
+ */
+#define ORANGEFS_ERROR_CLASS_BITS 0x380
+
+/* Bits 6 - 0 are reserved for the actual error code. */
+#define ORANGEFS_ERROR_NUMBER_BITS 0x7f
+
+/* Encoded errno values decoded by PINT_errno_mapping in orangefs-utils.c. */
+
+/* Our own ORANGEFS protocol error codes. */
+#define ORANGEFS_ECANCEL (1|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
+#define ORANGEFS_EDEVINIT (2|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
+#define ORANGEFS_EDETAIL (3|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
+#define ORANGEFS_EHOSTNTFD (4|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
+#define ORANGEFS_EADDRNTFD (5|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
+#define ORANGEFS_ENORECVR (6|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
+#define ORANGEFS_ETRYAGAIN (7|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
+#define ORANGEFS_ENOTPVFS (8|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
+#define ORANGEFS_ESECURITY (9|ORANGEFS_NON_ERRNO_ERROR_BIT|ORANGEFS_ERROR_BIT)
+
+/* permission bits */
+#define ORANGEFS_O_EXECUTE (1 << 0)
+#define ORANGEFS_O_WRITE (1 << 1)
+#define ORANGEFS_O_READ (1 << 2)
+#define ORANGEFS_G_EXECUTE (1 << 3)
+#define ORANGEFS_G_WRITE (1 << 4)
+#define ORANGEFS_G_READ (1 << 5)
+#define ORANGEFS_U_EXECUTE (1 << 6)
+#define ORANGEFS_U_WRITE (1 << 7)
+#define ORANGEFS_U_READ (1 << 8)
+/* no ORANGEFS_U_VTX (sticky bit) */
+#define ORANGEFS_G_SGID (1 << 10)
+#define ORANGEFS_U_SUID (1 << 11)
+
+#define ORANGEFS_ITERATE_START 2147483646
+#define ORANGEFS_ITERATE_END 2147483645
+#define ORANGEFS_IMMUTABLE_FL FS_IMMUTABLE_FL
+#define ORANGEFS_APPEND_FL FS_APPEND_FL
+#define ORANGEFS_NOATIME_FL FS_NOATIME_FL
+#define ORANGEFS_MIRROR_FL 0x01000000ULL
+#define ORANGEFS_FS_ID_NULL ((__s32)0)
+#define ORANGEFS_ATTR_SYS_UID (1 << 0)
+#define ORANGEFS_ATTR_SYS_GID (1 << 1)
+#define ORANGEFS_ATTR_SYS_PERM (1 << 2)
+#define ORANGEFS_ATTR_SYS_ATIME (1 << 3)
+#define ORANGEFS_ATTR_SYS_CTIME (1 << 4)
+#define ORANGEFS_ATTR_SYS_MTIME (1 << 5)
+#define ORANGEFS_ATTR_SYS_TYPE (1 << 6)
+#define ORANGEFS_ATTR_SYS_ATIME_SET (1 << 7)
+#define ORANGEFS_ATTR_SYS_MTIME_SET (1 << 8)
+#define ORANGEFS_ATTR_SYS_SIZE (1 << 20)
+#define ORANGEFS_ATTR_SYS_LNK_TARGET (1 << 24)
+#define ORANGEFS_ATTR_SYS_DFILE_COUNT (1 << 25)
+#define ORANGEFS_ATTR_SYS_DIRENT_COUNT (1 << 26)
+#define ORANGEFS_ATTR_SYS_BLKSIZE (1 << 28)
+#define ORANGEFS_ATTR_SYS_MIRROR_COPIES_COUNT (1 << 29)
+#define ORANGEFS_ATTR_SYS_COMMON_ALL \
+ (ORANGEFS_ATTR_SYS_UID | \
+ ORANGEFS_ATTR_SYS_GID | \
+ ORANGEFS_ATTR_SYS_PERM | \
+ ORANGEFS_ATTR_SYS_ATIME | \
+ ORANGEFS_ATTR_SYS_CTIME | \
+ ORANGEFS_ATTR_SYS_MTIME | \
+ ORANGEFS_ATTR_SYS_TYPE)
+
+#define ORANGEFS_ATTR_SYS_ALL_SETABLE \
+(ORANGEFS_ATTR_SYS_COMMON_ALL-ORANGEFS_ATTR_SYS_TYPE)
+
+#define ORANGEFS_ATTR_SYS_ALL_NOHINT \
+ (ORANGEFS_ATTR_SYS_COMMON_ALL | \
+ ORANGEFS_ATTR_SYS_SIZE | \
+ ORANGEFS_ATTR_SYS_LNK_TARGET | \
+ ORANGEFS_ATTR_SYS_DFILE_COUNT | \
+ ORANGEFS_ATTR_SYS_MIRROR_COPIES_COUNT | \
+ ORANGEFS_ATTR_SYS_DIRENT_COUNT | \
+ ORANGEFS_ATTR_SYS_BLKSIZE)
+
+#define ORANGEFS_XATTR_REPLACE 0x2
+#define ORANGEFS_XATTR_CREATE 0x1
+#define ORANGEFS_MAX_SERVER_ADDR_LEN 256
+#define ORANGEFS_NAME_MAX 256
+/*
+ * max extended attribute name len as imposed by the VFS and exploited for the
+ * upcall request types.
+ * NOTE: Please retain them as multiples of 8 even if you wish to change them
+ * This is *NECESSARY* for supporting 32 bit user-space binaries on a 64-bit
+ * kernel. Due to implementation within DBPF, this really needs to be
+ * ORANGEFS_NAME_MAX, which it was the same value as, but no reason to let it
+ * break if that changes in the future.
+ */
+#define ORANGEFS_MAX_XATTR_NAMELEN ORANGEFS_NAME_MAX /* Not the same as
+ * XATTR_NAME_MAX defined
+ * by <linux/xattr.h>
+ */
+#define ORANGEFS_MAX_XATTR_VALUELEN 8192 /* Not the same as XATTR_SIZE_MAX
+ * defined by <linux/xattr.h>
+ */
+#define ORANGEFS_MAX_XATTR_LISTLEN 16 /* Not the same as XATTR_LIST_MAX
+ * defined by <linux/xattr.h>
+ */
+/*
+ * ORANGEFS I/O operation types, used in both system and server interfaces.
+ */
+enum ORANGEFS_io_type {
+ ORANGEFS_IO_READ = 1,
+ ORANGEFS_IO_WRITE = 2
+};
+
+/*
+ * If this enum is modified the server parameters related to the precreate pool
+ * batch and low threshold sizes may need to be modified to reflect this
+ * change.
+ */
+enum orangefs_ds_type {
+ ORANGEFS_TYPE_NONE = 0,
+ ORANGEFS_TYPE_METAFILE = (1 << 0),
+ ORANGEFS_TYPE_DATAFILE = (1 << 1),
+ ORANGEFS_TYPE_DIRECTORY = (1 << 2),
+ ORANGEFS_TYPE_SYMLINK = (1 << 3),
+ ORANGEFS_TYPE_DIRDATA = (1 << 4),
+ ORANGEFS_TYPE_INTERNAL = (1 << 5) /* for the server's private use */
+};
+
+/* This structure is used by the VFS-client interaction alone */
+struct ORANGEFS_keyval_pair {
+ char key[ORANGEFS_MAX_XATTR_NAMELEN];
+ __s32 key_sz; /* __s32 for portable, fixed-size structures */
+ __s32 val_sz;
+ char val[ORANGEFS_MAX_XATTR_VALUELEN];
+};
+
+/* pvfs2-sysint.h ***********************************************************/
+/* Describes attributes for a file, directory, or symlink. */
+struct ORANGEFS_sys_attr_s {
+ __u32 owner;
+ __u32 group;
+ __u32 perms;
+ __u64 atime;
+ __u64 mtime;
+ __u64 ctime;
+ __s64 size;
+
+ /* NOTE: caller must free if valid */
+ char *link_target;
+
+ /* Changed to __s32 so that size of structure does not change */
+ __s32 dfile_count;
+
+ /* Changed to __s32 so that size of structure does not change */
+ __s32 distr_dir_servers_initial;
+
+ /* Changed to __s32 so that size of structure does not change */
+ __s32 distr_dir_servers_max;
+
+ /* Changed to __s32 so that size of structure does not change */
+ __s32 distr_dir_split_size;
+
+ __u32 mirror_copies_count;
+
+ /* NOTE: caller must free if valid */
+ char *dist_name;
+
+ /* NOTE: caller must free if valid */
+ char *dist_params;
+
+ __s64 dirent_count;
+ enum orangefs_ds_type objtype;
+ __u64 flags;
+ __u32 mask;
+ __s64 blksize;
+};
+
+#define ORANGEFS_LOOKUP_LINK_NO_FOLLOW 0
+
+/* pint-dev.h ***************************************************************/
+
+/* parameter structure used in ORANGEFS_DEV_DEBUG ioctl command */
+struct dev_mask_info_s {
+ enum {
+ KERNEL_MASK,
+ CLIENT_MASK,
+ } mask_type;
+ __u64 mask_value;
+};
+
+struct dev_mask2_info_s {
+ __u64 mask1_value;
+ __u64 mask2_value;
+};
+
+/* pvfs2-util.h *************************************************************/
+__s32 ORANGEFS_util_translate_mode(int mode);
+
+/* pvfs2-debug.h ************************************************************/
+#include "orangefs-debug.h"
+
+/* pvfs2-internal.h *********************************************************/
+#define llu(x) (unsigned long long)(x)
+#define lld(x) (long long)(x)
+
+/* pint-dev-shared.h ********************************************************/
+#define ORANGEFS_DEV_MAGIC 'k'
+
+#define ORANGEFS_READDIR_DEFAULT_DESC_COUNT 5
+
+#define DEV_GET_MAGIC 0x1
+#define DEV_GET_MAX_UPSIZE 0x2
+#define DEV_GET_MAX_DOWNSIZE 0x3
+#define DEV_MAP 0x4
+#define DEV_REMOUNT_ALL 0x5
+#define DEV_DEBUG 0x6
+#define DEV_UPSTREAM 0x7
+#define DEV_CLIENT_MASK 0x8
+#define DEV_CLIENT_STRING 0x9
+#define DEV_MAX_NR 0xa
+
+/* supported ioctls, codes are with respect to user-space */
+enum {
+ ORANGEFS_DEV_GET_MAGIC = _IOW(ORANGEFS_DEV_MAGIC, DEV_GET_MAGIC, __s32),
+ ORANGEFS_DEV_GET_MAX_UPSIZE =
+ _IOW(ORANGEFS_DEV_MAGIC, DEV_GET_MAX_UPSIZE, __s32),
+ ORANGEFS_DEV_GET_MAX_DOWNSIZE =
+ _IOW(ORANGEFS_DEV_MAGIC, DEV_GET_MAX_DOWNSIZE, __s32),
+ ORANGEFS_DEV_MAP = _IO(ORANGEFS_DEV_MAGIC, DEV_MAP),
+ ORANGEFS_DEV_REMOUNT_ALL = _IO(ORANGEFS_DEV_MAGIC, DEV_REMOUNT_ALL),
+ ORANGEFS_DEV_DEBUG = _IOR(ORANGEFS_DEV_MAGIC, DEV_DEBUG, __s32),
+ ORANGEFS_DEV_UPSTREAM = _IOW(ORANGEFS_DEV_MAGIC, DEV_UPSTREAM, int),
+ ORANGEFS_DEV_CLIENT_MASK = _IOW(ORANGEFS_DEV_MAGIC,
+ DEV_CLIENT_MASK,
+ struct dev_mask2_info_s),
+ ORANGEFS_DEV_CLIENT_STRING = _IOW(ORANGEFS_DEV_MAGIC,
+ DEV_CLIENT_STRING,
+ char *),
+ ORANGEFS_DEV_MAXNR = DEV_MAX_NR,
+};
+
+/*
+ * version number for use in communicating between kernel space and user
+ * space. Zero signifies the upstream version of the kernel module.
+ */
+#define ORANGEFS_KERNEL_PROTO_VERSION 0
+#define ORANGEFS_MINIMUM_USERSPACE_VERSION 20903
+
+/*
+ * describes memory regions to map in the ORANGEFS_DEV_MAP ioctl.
+ * NOTE: See devorangefs-req.c for 32 bit compat structure.
+ * Since this structure has a variable-sized layout that is different
+ * on 32 and 64 bit platforms, we need to normalize to a 64 bit layout
+ * on such systems before servicing ioctl calls from user-space binaries
+ * that may be 32 bit!
+ */
+struct ORANGEFS_dev_map_desc {
+ void __user *ptr;
+ __s32 total_size;
+ __s32 size;
+ __s32 count;
+};
+
+/* gossip.h *****************************************************************/
+
+extern __u64 orangefs_gossip_debug_mask;
+
+/* try to avoid function call overhead by checking masks in macro */
+#define gossip_debug(mask, fmt, ...) \
+do { \
+ if (orangefs_gossip_debug_mask & (mask)) \
+ printk(KERN_DEBUG fmt, ##__VA_ARGS__); \
+} while (0)
+
+#define gossip_err pr_err