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444 lines
13 KiB
C
444 lines
13 KiB
C
#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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extern struct client_debug_mask *cdm_array;
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extern char *debug_help_string;
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extern int help_string_initialized;
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extern struct dentry *debug_dir;
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extern struct dentry *help_file_dentry;
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extern struct dentry *client_debug_dentry;
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extern const struct file_operations debug_help_fops;
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extern int client_all_index;
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extern int client_verbose_index;
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extern int cdm_element_count;
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#define DEBUG_HELP_STRING_SIZE 4096
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#define HELP_STRING_UNINITIALIZED \
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"Client Debug Keywords are unknown until the first time\n" \
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"the client is started after boot.\n"
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#define ORANGEFS_KMOD_DEBUG_HELP_FILE "debug-help"
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#define ORANGEFS_KMOD_DEBUG_FILE "kernel-debug"
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#define ORANGEFS_CLIENT_DEBUG_FILE "client-debug"
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#define PVFS2_VERBOSE "verbose"
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#define PVFS2_ALL "all"
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/* pvfs2-config.h ***********************************************************/
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#define PVFS2_VERSION_MAJOR 2
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#define PVFS2_VERSION_MINOR 9
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#define PVFS2_VERSION_SUB 0
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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 pvfs2_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 pvfs2_object_kref {
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struct pvfs2_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 PVFS_khandle_cmp(const struct pvfs2_khandle *kh1,
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const struct pvfs2_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 PVFS_khandle_to(const struct pvfs2_khandle *kh,
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void *p, int size)
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{
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memset(p, 0, size);
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memcpy(p, kh->u, 16);
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}
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static inline void PVFS_khandle_from(struct pvfs2_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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typedef __u32 PVFS_uid;
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typedef __u32 PVFS_gid;
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typedef __s32 PVFS_fs_id;
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typedef __u32 PVFS_permissions;
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typedef __u64 PVFS_time;
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typedef __s64 PVFS_size;
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typedef __u64 PVFS_flags;
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typedef __u64 PVFS_ds_position;
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typedef __s32 PVFS_error;
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typedef __s64 PVFS_offset;
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#define PVFS2_SUPER_MAGIC 0x20030528
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/*
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* PVFS2 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 PVFS2 error. A PVFS2 error is either an
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* encoded errno value or a PVFS2 protocol error.
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*/
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#define PVFS_ERROR_BIT (1 << 30)
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/*
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* Bit 29 specifies that this is a PVFS2 protocol error and not an encoded
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* errno value.
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*/
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#define PVFS_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 PVFS_ERROR_CLASS_BITS 0x380
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/* Bits 6 - 0 are reserved for the actual error code. */
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#define PVFS_ERROR_NUMBER_BITS 0x7f
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/* Encoded errno values are decoded by PINT_errno_mapping in pvfs2-utils.c. */
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/* Our own PVFS2 protocol error codes. */
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#define PVFS_ECANCEL (1|PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)
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#define PVFS_EDEVINIT (2|PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)
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#define PVFS_EDETAIL (3|PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)
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#define PVFS_EHOSTNTFD (4|PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)
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#define PVFS_EADDRNTFD (5|PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)
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#define PVFS_ENORECVR (6|PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)
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#define PVFS_ETRYAGAIN (7|PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)
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#define PVFS_ENOTPVFS (8|PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)
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#define PVFS_ESECURITY (9|PVFS_NON_ERRNO_ERROR_BIT|PVFS_ERROR_BIT)
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/* permission bits */
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#define PVFS_O_EXECUTE (1 << 0)
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#define PVFS_O_WRITE (1 << 1)
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#define PVFS_O_READ (1 << 2)
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#define PVFS_G_EXECUTE (1 << 3)
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#define PVFS_G_WRITE (1 << 4)
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#define PVFS_G_READ (1 << 5)
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#define PVFS_U_EXECUTE (1 << 6)
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#define PVFS_U_WRITE (1 << 7)
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#define PVFS_U_READ (1 << 8)
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/* no PVFS_U_VTX (sticky bit) */
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#define PVFS_G_SGID (1 << 10)
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#define PVFS_U_SUID (1 << 11)
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/* definition taken from stdint.h */
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#define INT32_MAX (2147483647)
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#define PVFS_ITERATE_START (INT32_MAX - 1)
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#define PVFS_ITERATE_END (INT32_MAX - 2)
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#define PVFS_ITERATE_NEXT (INT32_MAX - 3)
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#define PVFS_READDIR_START PVFS_ITERATE_START
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#define PVFS_READDIR_END PVFS_ITERATE_END
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#define PVFS_IMMUTABLE_FL FS_IMMUTABLE_FL
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#define PVFS_APPEND_FL FS_APPEND_FL
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#define PVFS_NOATIME_FL FS_NOATIME_FL
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#define PVFS_MIRROR_FL 0x01000000ULL
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#define PVFS_O_EXECUTE (1 << 0)
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#define PVFS_FS_ID_NULL ((__s32)0)
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#define PVFS_ATTR_SYS_UID (1 << 0)
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#define PVFS_ATTR_SYS_GID (1 << 1)
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#define PVFS_ATTR_SYS_PERM (1 << 2)
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#define PVFS_ATTR_SYS_ATIME (1 << 3)
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#define PVFS_ATTR_SYS_CTIME (1 << 4)
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#define PVFS_ATTR_SYS_MTIME (1 << 5)
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#define PVFS_ATTR_SYS_TYPE (1 << 6)
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#define PVFS_ATTR_SYS_ATIME_SET (1 << 7)
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#define PVFS_ATTR_SYS_MTIME_SET (1 << 8)
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#define PVFS_ATTR_SYS_SIZE (1 << 20)
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#define PVFS_ATTR_SYS_LNK_TARGET (1 << 24)
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#define PVFS_ATTR_SYS_DFILE_COUNT (1 << 25)
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#define PVFS_ATTR_SYS_DIRENT_COUNT (1 << 26)
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#define PVFS_ATTR_SYS_BLKSIZE (1 << 28)
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#define PVFS_ATTR_SYS_MIRROR_COPIES_COUNT (1 << 29)
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#define PVFS_ATTR_SYS_COMMON_ALL \
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(PVFS_ATTR_SYS_UID | \
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PVFS_ATTR_SYS_GID | \
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PVFS_ATTR_SYS_PERM | \
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PVFS_ATTR_SYS_ATIME | \
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PVFS_ATTR_SYS_CTIME | \
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PVFS_ATTR_SYS_MTIME | \
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PVFS_ATTR_SYS_TYPE)
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#define PVFS_ATTR_SYS_ALL_SETABLE \
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(PVFS_ATTR_SYS_COMMON_ALL-PVFS_ATTR_SYS_TYPE)
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#define PVFS_ATTR_SYS_ALL_NOHINT \
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(PVFS_ATTR_SYS_COMMON_ALL | \
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PVFS_ATTR_SYS_SIZE | \
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PVFS_ATTR_SYS_LNK_TARGET | \
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PVFS_ATTR_SYS_DFILE_COUNT | \
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PVFS_ATTR_SYS_MIRROR_COPIES_COUNT | \
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PVFS_ATTR_SYS_DIRENT_COUNT | \
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PVFS_ATTR_SYS_BLKSIZE)
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#define PVFS_XATTR_REPLACE 0x2
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#define PVFS_XATTR_CREATE 0x1
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#define PVFS_MAX_SERVER_ADDR_LEN 256
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#define PVFS_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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* PVFS_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 PVFS_MAX_XATTR_NAMELEN PVFS_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 PVFS_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 PVFS_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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* PVFS I/O operation types, used in both system and server interfaces.
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*/
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enum PVFS_io_type {
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PVFS_IO_READ = 1,
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PVFS_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 pvfs2_ds_type {
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PVFS_TYPE_NONE = 0,
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PVFS_TYPE_METAFILE = (1 << 0),
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PVFS_TYPE_DATAFILE = (1 << 1),
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PVFS_TYPE_DIRECTORY = (1 << 2),
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PVFS_TYPE_SYMLINK = (1 << 3),
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PVFS_TYPE_DIRDATA = (1 << 4),
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PVFS_TYPE_INTERNAL = (1 << 5) /* for the server's private use */
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};
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/*
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* PVFS_certificate simply stores a buffer with the buffer size.
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* The buffer can be converted to an OpenSSL X509 struct for use.
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*/
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struct PVFS_certificate {
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__u32 buf_size;
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unsigned char *buf;
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};
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/*
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* A credential identifies a user and is signed by the client/user
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* private key.
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*/
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struct PVFS_credential {
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__u32 userid; /* user id */
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__u32 num_groups; /* length of group_array */
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__u32 *group_array; /* groups for which the user is a member */
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char *issuer; /* alias of the issuing server */
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__u64 timeout; /* seconds after epoch to time out */
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__u32 sig_size; /* length of the signature in bytes */
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unsigned char *signature; /* digital signature */
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struct PVFS_certificate certificate; /* user certificate buffer */
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};
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#define extra_size_PVFS_credential (PVFS_REQ_LIMIT_GROUPS * \
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sizeof(__u32) + \
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PVFS_REQ_LIMIT_ISSUER + \
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PVFS_REQ_LIMIT_SIGNATURE + \
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extra_size_PVFS_certificate)
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/* This structure is used by the VFS-client interaction alone */
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struct PVFS_keyval_pair {
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char key[PVFS_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[PVFS_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 PVFS_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 pvfs2_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 PVFS2_LOOKUP_LINK_NO_FOLLOW 0
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#define PVFS2_LOOKUP_LINK_FOLLOW 1
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/* pint-dev.h ***************************************************************/
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/* parameter structure used in PVFS_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 PVFS_util_translate_mode(int mode);
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/* pvfs2-debug.h ************************************************************/
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#include "pvfs2-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 PVFS_DEV_MAGIC 'k'
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#define PVFS2_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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PVFS_DEV_GET_MAGIC = _IOW(PVFS_DEV_MAGIC, DEV_GET_MAGIC, __s32),
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PVFS_DEV_GET_MAX_UPSIZE =
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_IOW(PVFS_DEV_MAGIC, DEV_GET_MAX_UPSIZE, __s32),
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PVFS_DEV_GET_MAX_DOWNSIZE =
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_IOW(PVFS_DEV_MAGIC, DEV_GET_MAX_DOWNSIZE, __s32),
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PVFS_DEV_MAP = _IO(PVFS_DEV_MAGIC, DEV_MAP),
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PVFS_DEV_REMOUNT_ALL = _IO(PVFS_DEV_MAGIC, DEV_REMOUNT_ALL),
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PVFS_DEV_DEBUG = _IOR(PVFS_DEV_MAGIC, DEV_DEBUG, __s32),
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PVFS_DEV_UPSTREAM = _IOW(PVFS_DEV_MAGIC, DEV_UPSTREAM, int),
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PVFS_DEV_CLIENT_MASK = _IOW(PVFS_DEV_MAGIC,
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DEV_CLIENT_MASK,
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struct dev_mask2_info_s),
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PVFS_DEV_CLIENT_STRING = _IOW(PVFS_DEV_MAGIC,
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DEV_CLIENT_STRING,
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char *),
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PVFS_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 PVFS_KERNEL_PROTO_VERSION 0
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/*
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* describes memory regions to map in the PVFS_DEV_MAP ioctl.
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* NOTE: See devpvfs2-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 PVFS_dev_map_desc {
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void *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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#ifdef GOSSIP_DISABLE_DEBUG
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#define gossip_debug(mask, format, f...) do {} while (0)
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#else
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extern __u64 gossip_debug_mask;
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extern struct client_debug_mask client_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, format, f...) \
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do { \
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if (gossip_debug_mask & mask) \
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printk(format, ##f); \
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} while (0)
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#endif /* GOSSIP_DISABLE_DEBUG */
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/* do file and line number printouts w/ the GNU preprocessor */
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#define gossip_ldebug(mask, format, f...) \
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gossip_debug(mask, "%s: " format, __func__, ##f)
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#define gossip_err printk
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#define gossip_lerr(format, f...) \
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gossip_err("%s line %d: " format, \
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__FILE__, \
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__LINE__, \
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##f)
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