/* * Samba AppleDouble helpers * * Copyright (C) Ralph Boehme, 2019 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . */ #ifndef _ADOUBLE_H_ #define _ADOUBLE_H_ #include "MacExtensions.h" #define ADOUBLE_NAME_PREFIX "._" #define NETATALK_META_XATTR "org.netatalk.Metadata" #define NETATALK_RSRC_XATTR "org.netatalk.ResourceFork" #if defined(HAVE_ATTROPEN) #define AFPINFO_EA_NETATALK NETATALK_META_XATTR #define AFPRESOURCE_EA_NETATALK NETATALK_RSRC_XATTR #else #define AFPINFO_EA_NETATALK "user." NETATALK_META_XATTR #define AFPRESOURCE_EA_NETATALK "user." NETATALK_RSRC_XATTR #endif /* * There are two AppleDouble blobs we deal with: * * - ADOUBLE_META - AppleDouble blob used by Netatalk for storing * metadata in an xattr * * - ADOUBLE_RSRC - AppleDouble blob used by OS X and Netatalk in * ._ files */ typedef enum {ADOUBLE_META, ADOUBLE_RSRC} adouble_type_t; /* Version info */ #define AD_VERSION2 0x00020000 #define AD_VERSION AD_VERSION2 /* * AppleDouble entry IDs. */ #define ADEID_DFORK 1 #define ADEID_RFORK 2 #define ADEID_NAME 3 #define ADEID_COMMENT 4 #define ADEID_ICONBW 5 #define ADEID_ICONCOL 6 #define ADEID_FILEI 7 #define ADEID_FILEDATESI 8 #define ADEID_FINDERI 9 #define ADEID_MACFILEI 10 #define ADEID_PRODOSFILEI 11 #define ADEID_MSDOSFILEI 12 #define ADEID_SHORTNAME 13 #define ADEID_AFPFILEI 14 #define ADEID_DID 15 /* Private Netatalk entries */ #define ADEID_PRIVDEV 16 #define ADEID_PRIVINO 17 #define ADEID_PRIVSYN 18 #define ADEID_PRIVID 19 #define ADEID_MAX (ADEID_PRIVID + 1) /* * These are the real ids for the private entries, * as stored in the adouble file */ #define AD_DEV 0x80444556 #define AD_INO 0x80494E4F #define AD_SYN 0x8053594E #define AD_ID 0x8053567E /* AppleDouble magic */ #define AD_APPLESINGLE_MAGIC 0x00051600 #define AD_APPLEDOUBLE_MAGIC 0x00051607 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC /* Field widths */ #define ADEDLEN_NAME 255 #define ADEDLEN_COMMENT 200 #define ADEDLEN_FILEI 16 #define ADEDLEN_FINDERI 32 #define ADEDLEN_FILEDATESI 16 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */ #define ADEDLEN_AFPFILEI 4 #define ADEDLEN_MACFILEI 4 #define ADEDLEN_PRODOSFILEI 8 #define ADEDLEN_MSDOSFILEI 2 #define ADEDLEN_ICONBW 128 #define ADEDLEN_ICONCOL 1024 #define ADEDLEN_DID 4 #define ADEDLEN_PRIVDEV 8 #define ADEDLEN_PRIVINO 8 #define ADEDLEN_PRIVSYN 8 #define ADEDLEN_PRIVID 4 /* * Sharemode locks fcntl() offsets */ #if _FILE_OFFSET_BITS == 64 || defined(HAVE_LARGEFILE) #define AD_FILELOCK_BASE (UINT64_C(0x7FFFFFFFFFFFFFFF) - 9) #else #define AD_FILELOCK_BASE (UINT32_C(0x7FFFFFFF) - 9) #endif #define BYTELOCK_MAX (AD_FILELOCK_BASE - 1) #define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0) #define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1) #define AD_FILELOCK_RSRC_OPEN_WR (AD_FILELOCK_BASE + 2) #define AD_FILELOCK_RSRC_OPEN_RD (AD_FILELOCK_BASE + 3) #define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 4) #define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 5) #define AD_FILELOCK_RSRC_DENY_WR (AD_FILELOCK_BASE + 6) #define AD_FILELOCK_RSRC_DENY_RD (AD_FILELOCK_BASE + 7) #define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 8) #define AD_FILELOCK_RSRC_OPEN_NONE (AD_FILELOCK_BASE + 9) /* Time stuff we overload the bits a little */ #define AD_DATE_CREATE 0 #define AD_DATE_MODIFY 4 #define AD_DATE_BACKUP 8 #define AD_DATE_ACCESS 12 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \ AD_DATE_BACKUP | AD_DATE_ACCESS) #define AD_DATE_UNIX (1 << 10) #define AD_DATE_START 0x80000000 #define AD_DATE_DELTA 946684800 #define AD_DATE_FROM_UNIX(x) (htonl((x) - AD_DATE_DELTA)) #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA) #define AD_CONV_WIPE_BLANK (1<<0) #define AD_CONV_DELETE (1<<1) struct adouble; size_t ad_getentrylen(const struct adouble *ad, int eid); size_t ad_getentryoff(const struct adouble *ad, int eid); size_t ad_setentrylen(struct adouble *ad, int eid, size_t len); size_t ad_setentryoff(struct adouble *ad, int eid, size_t off); char *ad_get_entry(const struct adouble *ad, int eid); int ad_getdate(const struct adouble *ad, unsigned int dateoff, uint32_t *date); int ad_setdate(struct adouble *ad, unsigned int dateoff, uint32_t date); int ad_convert(struct vfs_handle_struct *handle, const struct smb_filename *smb_fname, const char *catia_mappings, uint32_t flags); bool ad_unconvert(TALLOC_CTX *mem_ctx, struct vfs_handle_struct *handle, const char *catia_mappings, struct smb_filename *smb_fname, bool *converted); struct adouble *ad_init(TALLOC_CTX *ctx, adouble_type_t type); NTSTATUS adouble_open_from_base_fsp(const struct files_struct *dirfsp, struct files_struct *base_fsp, adouble_type_t type, int flags, mode_t mode, struct files_struct **_ad_fsp); struct adouble *ad_get(TALLOC_CTX *ctx, vfs_handle_struct *handle, const struct smb_filename *smb_fname, adouble_type_t type); struct adouble *ad_fget(TALLOC_CTX *ctx, vfs_handle_struct *handle, files_struct *fsp, adouble_type_t type); int ad_fset(struct vfs_handle_struct *handle, struct adouble *ad, files_struct *fsp); bool is_adouble_file(const char *path); int adouble_path(TALLOC_CTX *ctx, const struct smb_filename *smb_fname_in, struct smb_filename **pp_smb_fname_out); AfpInfo *afpinfo_new(TALLOC_CTX *ctx); ssize_t afpinfo_pack(const AfpInfo *ai, char *buf); AfpInfo *afpinfo_unpack(TALLOC_CTX *ctx, const void *data, bool validate); #endif