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