1 /* 2 * Copyright (c) 2019 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@dragonflybsd.org> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 #ifndef HAMMER2_HAMMER2_SUBS_H_ 36 #define HAMMER2_HAMMER2_SUBS_H_ 37 38 #include <sys/types.h> 39 #include <uuid.h> 40 41 #include <vfs/hammer2/hammer2_disk.h> 42 43 typedef struct hammer2_volume { 44 int fd; 45 int id; 46 char *path; 47 hammer2_off_t offset; 48 hammer2_off_t size; 49 } hammer2_volume_t; 50 51 typedef struct hammer2_ondisk { 52 int version; 53 int nvolumes; 54 hammer2_volume_t volumes[HAMMER2_MAX_VOLUMES]; 55 hammer2_off_t total_size; 56 hammer2_off_t free_size; 57 uuid_t fsid; 58 uuid_t fstype; 59 } hammer2_ondisk_t; 60 61 /* 62 * Misc functions 63 */ 64 int hammer2_ioctl_handle(const char *sel_path); 65 const char *hammer2_time64_to_str(uint64_t htime64, char **strp); 66 const char *hammer2_uuid_to_str(const uuid_t *uuid, char **strp); 67 const char *hammer2_iptype_to_str(uint8_t type); 68 const char *hammer2_pfstype_to_str(uint8_t type); 69 const char *hammer2_pfssubtype_to_str(uint8_t subtype); 70 const char *hammer2_breftype_to_str(uint8_t type); 71 const char *sizetostr(hammer2_off_t size); 72 const char *counttostr(hammer2_off_t size); 73 hammer2_off_t check_volume(int fd); 74 hammer2_key_t dirhash(const char *aname, size_t len); 75 76 #define hammer2_icrc32(buf, size) iscsi_crc32((buf), (size)) 77 #define hammer2_icrc32c(buf, size, crc) iscsi_crc32_ext((buf), (size), (crc)) 78 uint32_t iscsi_crc32(const void *buf, size_t size); 79 uint32_t iscsi_crc32_ext(const void *buf, size_t size, uint32_t ocrc); 80 81 char **get_hammer2_mounts(int *acp); 82 void put_hammer2_mounts(int ac, char **av); 83 84 void hammer2_init_ondisk(hammer2_ondisk_t *fsp); 85 void hammer2_install_volume(hammer2_volume_t *vol, int fd, int id, 86 const char *path, hammer2_off_t offset, hammer2_off_t size); 87 void hammer2_uninstall_volume(hammer2_volume_t *vol); 88 void hammer2_verify_volumes(hammer2_ondisk_t *fsp, 89 const hammer2_volume_data_t *rootvoldata); 90 void hammer2_print_volumes(const hammer2_ondisk_t *fsp); 91 void hammer2_init_volumes(const char *blkdevs, int rdonly); 92 void hammer2_cleanup_volumes(void); 93 94 int hammer2_get_volume_fd(hammer2_off_t offset); 95 int hammer2_get_root_volume_fd(void); 96 int hammer2_get_volume_id(hammer2_off_t offset); 97 int hammer2_get_root_volume_id(void); 98 const char *hammer2_get_volume_path(hammer2_off_t offset); 99 const char *hammer2_get_root_volume_path(void); 100 hammer2_off_t hammer2_get_volume_offset(hammer2_off_t offset); 101 hammer2_off_t hammer2_get_root_volume_offset(void); 102 hammer2_off_t hammer2_get_volume_size(hammer2_off_t offset); 103 hammer2_off_t hammer2_get_root_volume_size(void); 104 105 hammer2_off_t hammer2_get_total_size(void); 106 hammer2_volume_data_t* hammer2_read_root_volume_header(void); 107 108 #endif /* !HAMMER2_HAMMER2_SUBS_H_ */ 109