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-rw-r--r--xlators/encryption/crypt/src/crypt.h931
1 files changed, 0 insertions, 931 deletions
diff --git a/xlators/encryption/crypt/src/crypt.h b/xlators/encryption/crypt/src/crypt.h
deleted file mode 100644
index c1216a2cdb0..00000000000
--- a/xlators/encryption/crypt/src/crypt.h
+++ /dev/null
@@ -1,931 +0,0 @@
-/*
- Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
- This file is part of GlusterFS.
-
- This file is licensed to you under your choice of the GNU Lesser
- General Public License, version 3 or any later version (LGPLv3 or
- later), or the GNU General Public License, version 2 (GPLv2), in all
- cases as published by the Free Software Foundation.
-*/
-
-#ifndef __CRYPT_H__
-#define __CRYPT_H__
-
-#include <openssl/aes.h>
-#include <openssl/evp.h>
-#include <openssl/sha.h>
-#include <openssl/hmac.h>
-#include <openssl/cmac.h>
-#include <openssl/modes.h>
-#include "crypt-mem-types.h"
-#include <glusterfs/compat.h>
-
-#define CRYPT_XLATOR_ID (0)
-
-#define MAX_IOVEC_BITS (3)
-#define MAX_IOVEC (1 << MAX_IOVEC_BITS)
-#define KEY_FACTOR_BITS (6)
-
-#define DEBUG_CRYPT (0)
-#define TRIVIAL_TFM (0)
-
-#define CRYPT_MIN_BLOCK_BITS (9)
-#define CRYPT_MAX_BLOCK_BITS (12)
-
-#define MASTER_VOL_KEY_SIZE (32)
-#define NMTD_VOL_KEY_SIZE (16)
-
-#if !defined(GF_LINUX_HOST_OS)
-typedef off_t loff_t;
-#endif
-
-struct crypt_key {
- uint32_t len;
- const char *label;
-};
-
-/*
- * Add new key types to the end of this
- * enumeration but before LAST_KEY_TYPE
- */
-typedef enum {
- MASTER_VOL_KEY,
- NMTD_VOL_KEY,
- NMTD_LINK_KEY,
- EMTD_FILE_KEY,
- DATA_FILE_KEY_256,
- DATA_FILE_KEY_512,
- LAST_KEY_TYPE
-} crypt_key_type;
-
-struct kderive_context {
- const unsigned char *pkey; /* parent key */
- uint32_t pkey_len; /* parent key size, bits */
- uint32_t ckey_len; /* child key size, bits */
- unsigned char *fid; /* fixed input data, NIST 800-108, 5.1 */
- uint32_t fid_len; /* fid len, bytes */
- unsigned char *out; /* contains child keying material */
- uint32_t out_len; /* out len, bytes */
-};
-
-typedef enum { DATA_ATOM, HOLE_ATOM, LAST_DATA_TYPE } atom_data_type;
-
-typedef enum {
- HEAD_ATOM,
- TAIL_ATOM,
- FULL_ATOM,
- LAST_LOCALITY_TYPE
-} atom_locality_type;
-
-typedef enum {
- MTD_CREATE,
- MTD_APPEND,
- MTD_OVERWRITE,
- MTD_CUT,
- MTD_LAST_OP
-} mtd_op_t;
-
-struct xts128_context {
- void *key1, *key2;
- block128_f block1, block2;
-};
-
-struct object_cipher_info {
- cipher_alg_t o_alg;
- cipher_mode_t o_mode;
- uint32_t o_block_bits;
- uint32_t o_dkey_size; /* raw data key size in bits */
- union {
- struct {
- unsigned char ivec[16];
- AES_KEY dkey[2];
- AES_KEY tkey; /* key used for tweaking */
- XTS128_CONTEXT xts;
- } aes_xts;
- } u;
-};
-
-struct master_cipher_info {
- /*
- * attributes inherited by newly created regular files
- */
- cipher_alg_t m_alg;
- cipher_mode_t m_mode;
- uint32_t m_block_bits;
- uint32_t m_dkey_size; /* raw key size in bits */
- /*
- * master key
- */
- unsigned char m_key[MASTER_VOL_KEY_SIZE];
- /*
- * volume key for oid authentication
- */
- unsigned char m_nmtd_key[NMTD_VOL_KEY_SIZE];
-};
-
-/*
- * This info is not changed during file's life
- */
-struct crypt_inode_info {
-#if DEBUG_CRYPT
- loc_t *loc; /* pathname that the file has been
- opened, or created with */
-#endif
- uint16_t nr_minor;
- uuid_t oid;
- struct object_cipher_info cinfo;
-};
-
-/*
- * this should locate in secure memory
- */
-typedef struct {
- struct master_cipher_info master;
-} crypt_private_t;
-
-static inline struct master_cipher_info *
-get_master_cinfo(crypt_private_t *priv)
-{
- return &priv->master;
-}
-
-static inline struct object_cipher_info *
-get_object_cinfo(struct crypt_inode_info *info)
-{
- return &info->cinfo;
-}
-
-/*
- * this describes layouts and properties
- * of atoms in an aligned vector
- */
-struct avec_config {
- uint32_t atom_size;
- atom_data_type type;
- size_t orig_size;
- off_t orig_offset;
- size_t expanded_size;
- off_t aligned_offset;
-
- uint32_t off_in_head;
- uint32_t off_in_tail;
- uint32_t gap_in_tail;
- uint32_t nr_full_blocks;
-
- struct iovec *avec; /* aligned vector */
- uint32_t acount; /* number of avec components. The same
- * as number of occupied logical blocks */
- char **pool;
- uint32_t blocks_in_pool;
- uint32_t cursor; /* makes sense only for ordered writes,
- * so there is no races on this counter.
- *
- * Cursor is per-config object, we don't
- * reset cursor for atoms of different
- * localities (head, tail, full)
- */
-};
-
-typedef struct {
- glusterfs_fop_t fop; /* code of FOP this local info built for */
- fd_t *fd;
- inode_t *inode;
- loc_t *loc;
- int32_t mac_idx;
- loc_t *newloc;
- int32_t flags;
- int32_t wbflags;
- struct crypt_inode_info *info;
- struct iobref *iobref;
- struct iobref *iobref_data;
- off_t offset;
-
- uint64_t old_file_size; /* per FOP, retrieved under lock held */
- uint64_t cur_file_size; /* per iteration, before issuing IOs */
- uint64_t new_file_size; /* per iteration, after issuing IOs */
-
- uint64_t io_offset; /* offset of IOs issued per iteration */
- uint64_t io_offset_nopad; /* offset of user's data in the atom */
- uint32_t io_size; /* size of IOs issued per iteration */
- uint32_t io_size_nopad; /* size of user's data in the IOs */
- uint32_t eof_padding_size; /* size od EOF padding in the IOs */
-
- gf_lock_t call_lock; /* protect nr_calls from many cbks */
- int32_t nr_calls;
-
- atom_data_type active_setup; /* which setup (hole or date)
- is currently active */
- /* data setup */
- struct avec_config data_conf;
-
- /* hole setup */
- int hole_conv_in_proggress;
- gf_lock_t hole_lock; /* protect hole config from many cbks */
- int hole_handled;
- struct avec_config hole_conf;
- struct iatt buf;
- struct iatt prebuf;
- struct iatt postbuf;
- struct iatt *prenewparent;
- struct iatt *postnewparent;
- int32_t op_ret;
- int32_t op_errno;
- int32_t rw_count; /* total read or written */
- gf_lock_t rw_count_lock; /* protect the counter above */
- unsigned char *format; /* for create, update format string */
- uint32_t format_size;
- uint32_t msgflags; /* messages for crypt_open() */
- dict_t *xdata;
- dict_t *xattr;
- struct iovec vec; /* contains last file's atom for
- read-prune-write sequence */
- gf_boolean_t custom_mtd;
- /*
- * the next 3 fields are used by readdir and friends
- */
- gf_dirent_t *de; /* directory entry */
- char *de_path; /* pathname of directory entry */
- uint32_t de_prefix_len; /* length of the parent's pathname */
- gf_dirent_t *entries;
-
- uint32_t update_disk_file_size : 1;
-} crypt_local_t;
-
-/* This represents a (read)modify-write atom */
-struct rmw_atom {
- atom_locality_type locality;
- /*
- * read-modify-write sequence of the atom
- */
- int32_t (*rmw)(call_frame_t *frame, void *cookie, xlator_t *this,
- int32_t op_ret, int32_t op_errno, struct iovec *vec,
- int32_t count, struct iatt *stbuf, struct iobref *iobref,
- dict_t *xdata);
- /*
- * offset of the logical block in a file
- */
- loff_t (*offset_at)(call_frame_t *frame, struct object_cipher_info *object);
- /*
- * IO offset in an atom
- */
- uint32_t (*offset_in)(call_frame_t *frame,
- struct object_cipher_info *object);
- /*
- * number of bytes of plain text of this atom that user
- * wants to read/write.
- * It can be smaller than atom_size in the case of head
- * or tail atoms.
- */
- uint32_t (*io_size_nopad)(call_frame_t *frame,
- struct object_cipher_info *object);
- /*
- * which iovec represents the atom
- */
- struct iovec *(*get_iovec)(call_frame_t *frame, uint32_t count);
- /*
- * how many bytes of partial block should be uptodated by
- * reading from disk.
- * This is used to perform a read component of RMW (read-modify-write).
- */
- uint32_t (*count_to_uptodate)(call_frame_t *frame,
- struct object_cipher_info *object);
- struct avec_config *(*get_config)(call_frame_t *frame);
-};
-
-struct data_cipher_alg {
- gf_boolean_t atomic; /* true means that algorithm requires
- to pad data before cipher transform */
- gf_boolean_t should_pad; /* true means that algorithm requires
- to pad the end of file with extra-data */
- uint32_t blkbits; /* blksize = 1 << blkbits */
- /*
- * any preliminary sanity checks goes here
- */
- int32_t (*init)(void);
- /*
- * set alg-mode specific inode info
- */
- int32_t (*set_private)(struct crypt_inode_info *info,
- struct master_cipher_info *master);
- /*
- * check alg-mode specific data key
- */
- int32_t (*check_key)(uint32_t key_size);
- void (*set_iv)(off_t offset, struct object_cipher_info *object);
- int32_t (*encrypt)(const unsigned char *from, unsigned char *to,
- size_t length, off_t offset, const int enc,
- struct object_cipher_info *object);
-};
-
-/*
- * version-dependent metadata loader
- */
-struct crypt_mtd_loader {
- /*
- * return core format size
- */
- size_t (*format_size)(mtd_op_t op, size_t old_size);
- /*
- * pack version-specific metadata of an object
- * at ->create()
- */
- int32_t (*create_format)(unsigned char *wire, loc_t *loc,
- struct crypt_inode_info *info,
- struct master_cipher_info *master);
- /*
- * extract version-specific metadata of an object
- * at ->open() time
- */
- int32_t (*open_format)(unsigned char *wire, int32_t len, loc_t *loc,
- struct crypt_inode_info *info,
- struct master_cipher_info *master,
- crypt_local_t *local, gf_boolean_t load_info);
- int32_t (*update_format)(unsigned char *new, unsigned char *old,
- size_t old_len, int32_t mac_idx, mtd_op_t op,
- loc_t *loc, struct crypt_inode_info *info,
- struct master_cipher_info *master,
- crypt_local_t *local);
-};
-
-typedef int32_t (*end_writeback_handler_t)(call_frame_t *frame, void *cookie,
- xlator_t *this, int32_t op_ret,
- int32_t op_errno,
- struct iatt *prebuf,
- struct iatt *postbuf, dict_t *xdata);
-typedef void (*linkop_wind_handler_t)(call_frame_t *frame, xlator_t *this);
-typedef void (*linkop_unwind_handler_t)(call_frame_t *frame);
-
-/* Declarations */
-
-/* keys.c */
-extern struct crypt_key crypt_keys[LAST_KEY_TYPE];
-int32_t
-get_nmtd_vol_key(struct master_cipher_info *master);
-int32_t
-get_nmtd_link_key(loc_t *loc, struct master_cipher_info *master,
- unsigned char *result);
-int32_t
-get_emtd_file_key(struct crypt_inode_info *info,
- struct master_cipher_info *master, unsigned char *result);
-int32_t
-get_data_file_key(struct crypt_inode_info *info,
- struct master_cipher_info *master, uint32_t keysize,
- unsigned char *key);
-/* data.c */
-extern struct data_cipher_alg data_cipher_algs[LAST_CIPHER_ALG]
- [LAST_CIPHER_MODE];
-void
-encrypt_aligned_iov(struct object_cipher_info *object, struct iovec *vec,
- int count, off_t off);
-void
-decrypt_aligned_iov(struct object_cipher_info *object, struct iovec *vec,
- int count, off_t off);
-int32_t
-align_iov_by_atoms(xlator_t *this, crypt_local_t *local,
- struct object_cipher_info *object,
- struct iovec *vec /* input vector */,
- int32_t count /* number of vec components */,
- struct iovec *avec /* aligned vector */,
- char **blocks /* pool of blocks */,
- uint32_t *blocks_allocated, struct avec_config *conf);
-int32_t
-set_config_avec_data(xlator_t *this, crypt_local_t *local,
- struct avec_config *conf,
- struct object_cipher_info *object, struct iovec *vec,
- int32_t vec_count);
-int32_t
-set_config_avec_hole(xlator_t *this, crypt_local_t *local,
- struct avec_config *conf,
- struct object_cipher_info *object, glusterfs_fop_t fop);
-void
-set_gap_at_end(call_frame_t *frame, struct object_cipher_info *object,
- struct avec_config *conf, atom_data_type dtype);
-void
-set_config_offsets(call_frame_t *frame, xlator_t *this, uint64_t offset,
- uint64_t count, atom_data_type dtype,
- int32_t setup_gap_in_tail);
-
-/* metadata.c */
-extern struct crypt_mtd_loader mtd_loaders[LAST_MTD_LOADER];
-
-int32_t
-alloc_format(crypt_local_t *local, size_t size);
-int32_t
-alloc_format_create(crypt_local_t *local);
-void
-free_format(crypt_local_t *local);
-size_t
-format_size(mtd_op_t op, size_t old_size);
-size_t
-new_format_size(void);
-int32_t
-open_format(unsigned char *str, int32_t len, loc_t *loc,
- struct crypt_inode_info *info, struct master_cipher_info *master,
- crypt_local_t *local, gf_boolean_t load_info);
-int32_t
-update_format(unsigned char *new, unsigned char *old, size_t old_len,
- int32_t mac_idx, mtd_op_t op, loc_t *loc,
- struct crypt_inode_info *info, struct master_cipher_info *master,
- crypt_local_t *local);
-int32_t
-create_format(unsigned char *wire, loc_t *loc, struct crypt_inode_info *info,
- struct master_cipher_info *master);
-
-/* atom.c */
-struct rmw_atom *
-atom_by_types(atom_data_type data, atom_locality_type locality);
-void
-submit_partial(call_frame_t *frame, xlator_t *this, fd_t *fd,
- atom_locality_type ltype);
-void
-submit_full(call_frame_t *frame, xlator_t *this);
-
-/* crypt.c */
-
-end_writeback_handler_t
-dispatch_end_writeback(glusterfs_fop_t fop);
-void
-set_local_io_params_writev(call_frame_t *frame,
- struct object_cipher_info *object,
- struct rmw_atom *atom, off_t io_offset,
- uint32_t io_size);
-void
-link_wind(call_frame_t *frame, xlator_t *this);
-void
-unlink_wind(call_frame_t *frame, xlator_t *this);
-void
-link_unwind(call_frame_t *frame);
-void
-unlink_unwind(call_frame_t *frame);
-void
-rename_wind(call_frame_t *frame, xlator_t *this);
-void
-rename_unwind(call_frame_t *frame);
-
-/* Inline functions */
-
-static inline int32_t
-crypt_xlator_id(void)
-{
- return CRYPT_XLATOR_ID;
-}
-
-static inline mtd_loader_id
-current_mtd_loader(void)
-{
- return MTD_LOADER_V1;
-}
-
-static inline uint32_t
-master_key_size(void)
-{
- return crypt_keys[MASTER_VOL_KEY].len >> 3;
-}
-
-static inline uint32_t
-nmtd_vol_key_size(void)
-{
- return crypt_keys[NMTD_VOL_KEY].len >> 3;
-}
-
-static inline uint32_t
-alg_mode_blkbits(cipher_alg_t alg, cipher_mode_t mode)
-{
- return data_cipher_algs[alg][mode].blkbits;
-}
-
-static inline uint32_t
-alg_mode_blksize(cipher_alg_t alg, cipher_mode_t mode)
-{
- return 1 << alg_mode_blkbits(alg, mode);
-}
-
-static inline gf_boolean_t
-alg_mode_atomic(cipher_alg_t alg, cipher_mode_t mode)
-{
- return data_cipher_algs[alg][mode].atomic;
-}
-
-static inline gf_boolean_t
-alg_mode_should_pad(cipher_alg_t alg, cipher_mode_t mode)
-{
- return data_cipher_algs[alg][mode].should_pad;
-}
-
-static inline uint32_t
-master_alg_blksize(struct master_cipher_info *mr)
-{
- return alg_mode_blksize(mr->m_alg, mr->m_mode);
-}
-
-static inline uint32_t
-master_alg_blkbits(struct master_cipher_info *mr)
-{
- return alg_mode_blkbits(mr->m_alg, mr->m_mode);
-}
-
-static inline gf_boolean_t
-master_alg_atomic(struct master_cipher_info *mr)
-{
- return alg_mode_atomic(mr->m_alg, mr->m_mode);
-}
-
-static inline gf_boolean_t
-master_alg_should_pad(struct master_cipher_info *mr)
-{
- return alg_mode_should_pad(mr->m_alg, mr->m_mode);
-}
-
-static inline uint32_t
-object_alg_blksize(struct object_cipher_info *ob)
-{
- return alg_mode_blksize(ob->o_alg, ob->o_mode);
-}
-
-static inline uint32_t
-object_alg_blkbits(struct object_cipher_info *ob)
-{
- return alg_mode_blkbits(ob->o_alg, ob->o_mode);
-}
-
-static inline gf_boolean_t
-object_alg_atomic(struct object_cipher_info *ob)
-{
- return alg_mode_atomic(ob->o_alg, ob->o_mode);
-}
-
-static inline gf_boolean_t
-object_alg_should_pad(struct object_cipher_info *ob)
-{
- return alg_mode_should_pad(ob->o_alg, ob->o_mode);
-}
-
-static inline uint32_t
-aes_raw_key_size(struct master_cipher_info *master)
-{
- return master->m_dkey_size >> 3;
-}
-
-static inline struct avec_config *
-get_hole_conf(call_frame_t *frame)
-{
- return &(((crypt_local_t *)frame->local)->hole_conf);
-}
-
-static inline struct avec_config *
-get_data_conf(call_frame_t *frame)
-{
- return &(((crypt_local_t *)frame->local)->data_conf);
-}
-
-static inline int32_t
-get_atom_bits(struct object_cipher_info *object)
-{
- return object->o_block_bits;
-}
-
-static inline int32_t
-get_atom_size(struct object_cipher_info *object)
-{
- return 1 << get_atom_bits(object);
-}
-
-static inline int32_t
-has_head_block(struct avec_config *conf)
-{
- return conf->off_in_head || (conf->acount == 1 && conf->off_in_tail);
-}
-
-static inline int32_t
-has_tail_block(struct avec_config *conf)
-{
- return conf->off_in_tail && conf->acount > 1;
-}
-
-static inline int32_t
-has_full_blocks(struct avec_config *conf)
-{
- return conf->nr_full_blocks;
-}
-
-static inline int32_t
-should_submit_head_block(struct avec_config *conf)
-{
- return has_head_block(conf) && (conf->cursor == 0);
-}
-
-static inline int32_t
-should_submit_tail_block(struct avec_config *conf)
-{
- return has_tail_block(conf) && (conf->cursor == conf->acount - 1);
-}
-
-static inline int32_t
-should_submit_full_block(struct avec_config *conf)
-{
- uint32_t start = has_head_block(conf) ? 1 : 0;
-
- return has_full_blocks(conf) && conf->cursor >= start &&
- conf->cursor < start + conf->nr_full_blocks;
-}
-
-#if DEBUG_CRYPT
-static inline void
-crypt_check_input_len(size_t len, struct object_cipher_info *object)
-{
- if (object_alg_should_pad(object) &&
- (len & (object_alg_blksize(object) - 1)))
- gf_log("crypt", GF_LOG_DEBUG, "bad input len: %d", (int)len);
-}
-
-static inline void
-check_head_block(struct avec_config *conf)
-{
- if (!has_head_block(conf))
- gf_log("crypt", GF_LOG_DEBUG, "not a head atom");
-}
-
-static inline void
-check_tail_block(struct avec_config *conf)
-{
- if (!has_tail_block(conf))
- gf_log("crypt", GF_LOG_DEBUG, "not a tail atom");
-}
-
-static inline void
-check_full_block(struct avec_config *conf)
-{
- if (!has_full_blocks(conf))
- gf_log("crypt", GF_LOG_DEBUG, "not a full atom");
-}
-
-static inline void
-check_cursor_head(struct avec_config *conf)
-{
- if (!has_head_block(conf))
- gf_log("crypt", GF_LOG_DEBUG, "Illegal call of head atom method");
- else if (conf->cursor != 0)
- gf_log("crypt", GF_LOG_DEBUG, "Cursor (%d) is not at head atom",
- conf->cursor);
-}
-
-static inline void
-check_cursor_full(struct avec_config *conf)
-{
- if (!has_full_blocks(conf))
- gf_log("crypt", GF_LOG_DEBUG, "Illegal call of full atom method");
- if (has_head_block(conf) && (conf->cursor == 0))
- gf_log("crypt", GF_LOG_DEBUG, "Cursor is not at full atom");
-}
-
-/*
- * FIXME: use avec->iov_len to check setup
- */
-static inline int
-data_local_invariant(crypt_local_t *local)
-{
- return 0;
-}
-
-#else
-#define crypt_check_input_len(len, object) noop
-#define check_head_block(conf) noop
-#define check_tail_block(conf) noop
-#define check_full_block(conf) noop
-#define check_cursor_head(conf) noop
-#define check_cursor_full(conf) noop
-
-#endif /* DEBUG_CRYPT */
-
-static inline struct avec_config *
-conf_by_type(call_frame_t *frame, atom_data_type dtype)
-{
- struct avec_config *conf = NULL;
-
- switch (dtype) {
- case HOLE_ATOM:
- conf = get_hole_conf(frame);
- break;
- case DATA_ATOM:
- conf = get_data_conf(frame);
- break;
- default:
- gf_log("crypt", GF_LOG_DEBUG, "bad atom type");
- }
- return conf;
-}
-
-static inline uint32_t
-nr_calls_head(struct avec_config *conf)
-{
- return has_head_block(conf) ? 1 : 0;
-}
-
-static inline uint32_t
-nr_calls_tail(struct avec_config *conf)
-{
- return has_tail_block(conf) ? 1 : 0;
-}
-
-static inline uint32_t
-nr_calls_full(struct avec_config *conf)
-{
- switch (conf->type) {
- case HOLE_ATOM:
- return has_full_blocks(conf);
- case DATA_ATOM:
- return has_full_blocks(conf)
- ? logical_blocks_occupied(0, conf->nr_full_blocks,
- MAX_IOVEC_BITS)
- : 0;
- default:
- gf_log("crypt", GF_LOG_DEBUG, "bad atom data type");
- return 0;
- }
-}
-
-static inline uint32_t
-nr_calls(struct avec_config *conf)
-{
- return nr_calls_head(conf) + nr_calls_tail(conf) + nr_calls_full(conf);
-}
-
-static inline uint32_t
-nr_calls_data(call_frame_t *frame)
-{
- return nr_calls(get_data_conf(frame));
-}
-
-static inline uint32_t
-nr_calls_hole(call_frame_t *frame)
-{
- return nr_calls(get_hole_conf(frame));
-}
-
-static inline void
-get_one_call_nolock(call_frame_t *frame)
-{
- crypt_local_t *local = frame->local;
-
- ++local->nr_calls;
-
- // gf_log("crypt", GF_LOG_DEBUG, "get %d calls", 1);
-}
-
-static inline void
-get_one_call(call_frame_t *frame)
-{
- crypt_local_t *local = frame->local;
-
- LOCK(&local->call_lock);
- get_one_call_nolock(frame);
- UNLOCK(&local->call_lock);
-}
-
-static inline void
-get_nr_calls_nolock(call_frame_t *frame, int32_t nr)
-{
- crypt_local_t *local = frame->local;
-
- local->nr_calls += nr;
-
- // gf_log("crypt", GF_LOG_DEBUG, "get %d calls", nr);
-}
-
-static inline void
-get_nr_calls(call_frame_t *frame, int32_t nr)
-{
- crypt_local_t *local = frame->local;
-
- LOCK(&local->call_lock);
- get_nr_calls_nolock(frame, nr);
- UNLOCK(&local->call_lock);
-}
-
-static inline int
-put_one_call(crypt_local_t *local)
-{
- uint32_t last = 0;
-
- LOCK(&local->call_lock);
- if (--local->nr_calls == 0)
- last = 1;
-
- // gf_log("crypt", GF_LOG_DEBUG, "put %d calls", 1);
-
- UNLOCK(&local->call_lock);
- return last;
-}
-
-static inline int
-is_appended_write(call_frame_t *frame)
-{
- crypt_local_t *local = frame->local;
- struct avec_config *conf = get_data_conf(frame);
-
- return conf->orig_offset + conf->orig_size > local->old_file_size;
-}
-
-static inline int
-is_ordered_mode(call_frame_t *frame)
-{
-#if 0
- crypt_local_t *local = frame->local;
- return local->fop == GF_FOP_FTRUNCATE ||
- (local->fop == GF_FOP_WRITE && is_appended_write(frame));
-#endif
- return 1;
-}
-
-static inline int32_t
-hole_conv_completed(crypt_local_t *local)
-{
- struct avec_config *conf = &local->hole_conf;
- return conf->cursor == conf->acount;
-}
-
-static inline int32_t
-data_write_in_progress(crypt_local_t *local)
-{
- return local->active_setup == DATA_ATOM;
-}
-
-static inline int32_t
-parent_is_crypt_xlator(call_frame_t *frame, xlator_t *this)
-{
- return frame->parent->this == this;
-}
-
-static inline linkop_wind_handler_t
-linkop_wind_dispatch(glusterfs_fop_t fop)
-{
- switch (fop) {
- case GF_FOP_LINK:
- return link_wind;
- case GF_FOP_UNLINK:
- return unlink_wind;
- case GF_FOP_RENAME:
- return rename_wind;
- default:
- gf_log("crypt", GF_LOG_ERROR, "Bad link operation %d", fop);
- return NULL;
- }
-}
-
-static inline linkop_unwind_handler_t
-linkop_unwind_dispatch(glusterfs_fop_t fop)
-{
- switch (fop) {
- case GF_FOP_LINK:
- return link_unwind;
- case GF_FOP_UNLINK:
- return unlink_unwind;
- case GF_FOP_RENAME:
- return rename_unwind;
- default:
- gf_log("crypt", GF_LOG_ERROR, "Bad link operation %d", fop);
- return NULL;
- }
-}
-
-static inline mtd_op_t
-linkop_mtdop_dispatch(glusterfs_fop_t fop)
-{
- switch (fop) {
- case GF_FOP_LINK:
- return MTD_APPEND;
- case GF_FOP_UNLINK:
- return MTD_CUT;
- case GF_FOP_RENAME:
- return MTD_OVERWRITE;
- default:
- gf_log("crypt", GF_LOG_WARNING, "Bad link operation %d", fop);
- return MTD_LAST_OP;
- }
-}
-
-#define CRYPT_STACK_UNWIND(fop, frame, params...) \
- do { \
- crypt_local_t *__local = NULL; \
- if (frame) { \
- __local = frame->local; \
- frame->local = NULL; \
- } \
- STACK_UNWIND_STRICT(fop, frame, params); \
- if (__local) { \
- GF_FREE(__local); \
- } \
- } while (0)
-
-#endif /* __CRYPT_H__ */
-
-/*
- Local variables:
- c-indentation-style: "K&R"
- mode-name: "LC"
- c-basic-offset: 8
- tab-width: 8
- fill-column: 80
- scroll-step: 1
- End:
-*/