#include <config.h>
#endif
+#include <atalk/standards.h>
+
#include <inttypes.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
-#include <sys/cdefs.h>
#include <fcntl.h>
+
#include <sys/mman.h>
+
#include <sys/time.h>
-#include <netatalk/endian.h>
#include <atalk/bstrlib.h>
/* version info */
#define RFORK_EA_ALLOCSIZE (128*1024) /* 128k */
-typedef u_int32_t cnid_t;
+typedef uint32_t cnid_t;
struct ad_entry {
- uint32_t ade_off;
- uint32_t ade_len;
+ off_t ade_off;
+ ssize_t ade_len;
};
typedef struct adf_lock_t {
struct ad_fd {
int adf_fd; /* -1: invalid, -2: symlink */
-#ifndef HAVE_PREAD
- off_t adf_off;
-#endif
char *adf_syml;
int adf_flags;
- int adf_excl;
-#if 0
adf_lock_t *adf_lock;
int adf_refcount, adf_lockcount, adf_lockmax;
-#endif
};
/* some header protection */
#define AD_INITED 0xad494e54 /* ad"INT" */
+#define AD_CLOSED 0xadc10ced
struct adouble;
struct adouble_fops {
- char *(*ad_path)(const char *, int);
- int (*ad_mkrf)(char *);
+ const char *(*ad_path)(const char *, int);
+ int (*ad_mkrf)(const char *);
int (*ad_rebuild_header)(struct adouble *);
int (*ad_header_read)(struct adouble *, struct stat *);
- int (*ad_header_upgrade)(struct adouble *, char *);
+ int (*ad_header_upgrade)(struct adouble *, const char *);
};
struct adouble {
- u_int32_t ad_magic;
- u_int32_t ad_version;
- char ad_filler[ 16 ];
- struct ad_entry ad_eid[ ADEID_MAX ];
- struct ad_fd ad_data_fork, ad_resource_fork, ad_metadata_fork;
- struct ad_fd *ad_md; /* either ad_resource or ad_metadata */
- int ad_flags; /* This really stores version info too (AD_VERSION*) */
- int ad_adflags; /* ad_open flags adflags like ADFLAGS_DIR */
- unsigned int ad_inited;
+ uint32_t ad_magic; /* Official adouble magic */
+ uint32_t ad_version; /* Official adouble version number */
+ char ad_filler[16];
+ struct ad_entry ad_eid[ADEID_MAX];
+ struct ad_fd ad_data_fork; /* the data fork */
+ struct ad_fd ad_resource_fork; /* adouble:v2 -> the adouble file *
+ * adouble:ea -> unused */
+ struct ad_fd *ad_rfp; /* adouble:v2 -> ad_resource_fork *
+ * adouble:ea -> ad_data_fork */
+ struct ad_fd *ad_mdp; /* adouble:v2 -> ad_resource_fork *
+ * adouble:ea -> ad_data_fork */
+ int ad_flags; /* Our adouble version info (AD_VERSION*) */
+ int ad_adflags; /* ad_open flags adflags like ADFLAGS_DIR */
+ uint32_t ad_inited;
int ad_options;
- int ad_refcount; /* used in afpd/ofork.c */
- void *ad_resforkbuf; /* buffer for AD_VERSION_EA ressource fork */
- size_t ad_resforkbufsize; /* size of ad_resforkbuf */
- off_t ad_rlen; /* ressource fork len with AFP 3.0
- the header parameter size is too small. */
- char *ad_m_name; /* mac name for open fork */
+ int ad_refcount; /* multiple forks may open one adouble */
+ void *ad_resforkbuf; /* buffer for AD_VERSION_EA ressource fork */
+ size_t ad_resforkbufsize; /* size of ad_resforkbuf */
+ size_t ad_maxeafssize; /* maximum EA size allowed from the fs */
+ off_t ad_rlen; /* ressource fork len with AFP 3.0 *
+ * the header parameter size is too small. */
+ char *ad_m_name; /* mac name for open fork */
int ad_m_namelen;
- bstring ad_fullpath; /* adouble EA need this */
struct adouble_fops *ad_ops;
- uint16_t ad_open_forks; /* open forks (by others) */
+ uint16_t ad_open_forks; /* open forks (by others) */
char ad_data[AD_DATASZ_MAX];
};
#define ADFLAGS_HF (1<<2)
#define ADFLAGS_DIR (1<<3)
#define ADFLAGS_NOHF (1<<4) /* not an error if no ressource fork */
-#define ADFLAGS_RDONLY (1<<5) /* don't try readwrite */
-#define ADFLAGS_OPENFORKS (1<<6) /* check for open fork in ad_metadata function */
+#define ADFLAGS_CHECK_OF (1<<6) /* check for open forks from us and other afpd's */
+#define ADFLAGS_SETSHRMD (1<<7) /* setting share mode must be done with excl fcnt lock,
+ which implies that the file must be openend rw.
+ If it can't be opened rw (eg EPERM or EROFS) it will
+ be opened ro and the fcntl locks will be shared, that
+ at least prevent other users who have rw access to the
+ file from placing excl locks. */
+#define ADFLAGS_RDWR (1<<8) /* open read/write */
+#define ADFLAGS_RDONLY (1<<9) /* open read only */
+#define ADFLAGS_CREATE (1<<10) /* create file, open called with O_CREAT */
+#define ADFLAGS_EXCL (1<<11) /* exclusive open, open called with O_EXCL */
+#define ADFLAGS_TRUNC (1<<12) /* truncate, open called with O_TRUNC */
#define ADVOL_NODEV (1 << 0)
#define ADVOL_CACHE (1 << 1)
#define ADLOCK_FILELOCK (1<<3)
/* we use this so that we can use the same mechanism for both byte
- * locks and file synchronization locks. i do this by co-opting either
- * first bits on 32-bit machines or shifting above the last bit on
- * 64-bit machines. this only matters for the data fork. */
-#if defined(TRY_64BITOFF_T) && (~0UL > 0xFFFFFFFFU)
-/* synchronization locks */
-#define AD_FILELOCK_BASE (0x80000000)
-#else
-#define AD_FILELOCK_BASE (0x7FFFFFFF -9)
-#endif
-
-/* FIXME:
- * AD_FILELOCK_BASE case
- */
+ * locks and file synchronization locks. */
#if _FILE_OFFSET_BITS == 64
-#define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
-#else
-/* Tru64 is an always-64-bit OS; version 4.0 does not set _FILE_OFFSET_BITS */
-#if defined(TRU64)
-#define BYTELOCK_MAX (0x7FFFFFFFFFFFFFFFULL)
+#define AD_FILELOCK_BASE (UINT64_C(0x7FFFFFFFFFFFFFFF) - 9)
#else
-#define BYTELOCK_MAX (0x7FFFFFFFU)
-#endif
+#define AD_FILELOCK_BASE (UINT32_C(0x7FFFFFFF) - 9)
#endif
+#define BYTELOCK_MAX (AD_FILELOCK_BASE - 1)
+
+/* datafork and rsrcfork sharemode locks */
#define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
#define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
-#define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 2)
-#define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 3)
-#define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 4)
+#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_AFPFILEI_BLANKACCESS (1 << 2) /* blank access permissions */
#define ad_data_fileno(ad) ((ad)->ad_data_fork.adf_fd)
-#define ad_reso_fileno(ad) ((ad)->ad_resource_fork.adf_fd)
-#define ad_meta_fileno(ad) ((ad)->ad_md->adf_fd)
+#define ad_reso_fileno(ad) ((ad)->ad_rfp->adf_fd)
+#define ad_meta_fileno(ad) ((ad)->ad_mdp->adf_fd)
#define ad_getversion(ad) ((ad)->ad_version)
#define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
#define ad_entry(ad,eid) ((caddr_t)(ad)->ad_data + (ad)->ad_eid[(eid)].ade_off)
-#define ad_get_HF_flags(ad) ((ad)->ad_resource_fork.adf_flags)
-#define ad_get_MD_flags(ad) ((ad)->ad_md->adf_flags)
+#define ad_get_RF_flags(ad) ((ad)->ad_rfp->adf_flags)
+#define ad_get_MD_flags(ad) ((ad)->ad_mdp->adf_flags)
+
+/* Refcounting open forks using one struct adouble */
+#define ad_ref(ad) (ad)->ad_refcount++
+#define ad_unref(ad) --((ad)->ad_refcount)
/* ad_flush.c */
extern int ad_rebuild_adouble_header (struct adouble *);
extern int ad_close (struct adouble *, int);
/* ad_lock.c */
-extern int ad_fcntl_lock (struct adouble *, const u_int32_t /*eid*/,
- const int /*type*/, const off_t /*offset*/,
- const off_t /*len*/, const int /*user*/);
-extern void ad_fcntl_unlock (struct adouble *, const int /*user*/);
-extern int ad_fcntl_tmplock (struct adouble *, const u_int32_t /*eid*/,
- const int /*type*/, const off_t /*offset*/,
- const off_t /*len*/, const int /*user*/);
-extern int ad_testlock (struct adouble * /*adp*/, int /*eid*/, off_t /*off*/);
-
-extern u_int16_t ad_openforks (struct adouble * /*adp*/, u_int16_t);
-extern int ad_excl_lock (struct adouble * /*adp*/, const u_int32_t /*eid*/);
-
-#define ad_lock ad_fcntl_lock
-#define ad_tmplock ad_fcntl_tmplock
-#define ad_unlock ad_fcntl_unlock
+extern int ad_testlock (struct adouble *adp, int eid, off_t off);
+extern uint16_t ad_openforks(struct adouble *adp, uint16_t);
+extern int ad_lock(struct adouble *, uint32_t eid, int type, off_t off, off_t len, int user);
+extern void ad_unlock(struct adouble *, int user);
+extern int ad_tmplock(struct adouble *, uint32_t eid, int type, off_t off, off_t len, int user);
/* ad_open.c */
+extern const char *adflags2logstr(int adflags);
extern int ad_setfuid (const uid_t );
extern uid_t ad_getfuid (void );
extern char *ad_dir (const char *);
-extern char *ad_path (const char *, int);
-extern char *ad_path_ea (const char *, int);
+extern const char *ad_path (const char *, int);
+extern const char *ad_path_ea (const char *, int);
extern int ad_mode (const char *, int);
extern int ad_mkdir (const char *, int);
-extern void ad_init (struct adouble *, int, int );
-extern int ad_open (const char *, int, int, int, struct adouble *);
-extern int ad_openat (int dirfd, const char *, int, int, int, struct adouble *);
+struct vol;
+extern void ad_init (struct adouble *, const struct vol * restrict);
+extern void ad_init_old (struct adouble *ad, int flags, int options);
+extern int ad_open (struct adouble *ad, const char *path, int adflags, ...);
+extern int ad_openat (struct adouble *, int dirfd, const char *path, int adflags, ...);
extern int ad_refresh (struct adouble *);
extern int ad_stat (const char *, struct stat *);
extern int ad_metadata (const char *, int, struct adouble *);
extern int ad_metadataat (int, const char *, int, struct adouble *);
-#define ad_open_metadata(name, flags, mode, adp)\
- ad_open(name, ADFLAGS_HF | (flags), O_RDWR |(mode), 0666, (adp))
-
-#define ad_close_metadata(adp) ad_close( (adp), ADFLAGS_HF)
-
/* build a resource fork mode from the data fork mode:
* remove X mode and extend header to RW if R or W (W if R for locking),
*/
extern int ad_getattr(const struct adouble *, uint16_t *);
extern int ad_setname(struct adouble *, const char *);
extern int ad_setid(struct adouble *, dev_t dev, ino_t ino, uint32_t, uint32_t, const void *);
-extern u_int32_t ad_getid(struct adouble *, dev_t, ino_t, cnid_t, const void *);
-extern u_int32_t ad_forcegetid(struct adouble *adp);
+extern uint32_t ad_getid(struct adouble *, dev_t, ino_t, cnid_t, const void *);
+extern uint32_t ad_forcegetid(struct adouble *adp);
#ifdef WITH_SENDFILE
extern int ad_readfile_init(const struct adouble *ad, int eid, off_t *off, int end);
#endif
-#if 0
-#ifdef HAVE_SENDFILE_WRITE
-extern ssize_t ad_writefile(struct adouble *, int, int, off_t, int, size_t);
-#endif /* HAVE_SENDFILE_WRITE */
-#endif /* 0 */
-
#endif /* _ATALK_ADOUBLE_H */
projects / netatalk.git / blobdiff