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-rw-r--r--libglusterfs/src/Makefile.am2
-rw-r--r--libglusterfs/src/iatt.h307
2 files changed, 308 insertions, 1 deletions
diff --git a/libglusterfs/src/Makefile.am b/libglusterfs/src/Makefile.am
index 90f8b65d532..755c2d807ce 100644
--- a/libglusterfs/src/Makefile.am
+++ b/libglusterfs/src/Makefile.am
@@ -8,7 +8,7 @@ lib_LTLIBRARIES = libglusterfs.la
libglusterfs_la_SOURCES = dict.c spec.lex.c y.tab.c xlator.c logging.c hashfn.c defaults.c scheduler.c common-utils.c transport.c timer.c inode.c call-stub.c compat.c authenticate.c fd.c compat-errno.c event.c mem-pool.c gf-dirent.c syscall.c iobuf.c globals.c statedump.c stack.c checksum.c md5.c $(CONTRIBDIR)/rbtree/rb.c rbthash.c
-noinst_HEADERS = common-utils.h defaults.h dict.h glusterfs.h hashfn.h logging.h protocol.h scheduler.h xlator.h transport.h stack.h timer.h list.h inode.h call-stub.h compat.h authenticate.h fd.h revision.h compat-errno.h event.h mem-pool.h byte-order.h gf-dirent.h locking.h syscall.h iobuf.h globals.h statedump.h checksum.h md5.h $(CONTRIBDIR)/rbtree/rb.h rbthash.h
+noinst_HEADERS = common-utils.h defaults.h dict.h glusterfs.h hashfn.h logging.h protocol.h scheduler.h xlator.h transport.h stack.h timer.h list.h inode.h call-stub.h compat.h authenticate.h fd.h revision.h compat-errno.h event.h mem-pool.h byte-order.h gf-dirent.h locking.h syscall.h iobuf.h globals.h statedump.h checksum.h md5.h $(CONTRIBDIR)/rbtree/rb.h rbthash.h iatt.h
EXTRA_DIST = spec.l spec.y
diff --git a/libglusterfs/src/iatt.h b/libglusterfs/src/iatt.h
new file mode 100644
index 00000000000..e94aa05baa5
--- /dev/null
+++ b/libglusterfs/src/iatt.h
@@ -0,0 +1,307 @@
+/*
+ Copyright (c) 2010 Gluster, Inc. <http://www.gluster.com>
+ This file is part of GlusterFS.
+
+ GlusterFS 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.
+
+ GlusterFS 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
+ <http://www.gnu.org/licenses/>.
+*/
+
+
+#ifndef _IATT_H
+#define _IATT_H
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h> /* for iatt <--> stat conversions */
+#include <unistd.h>
+
+
+typedef enum {
+ IA_INVAL = 0,
+ IA_IFREG,
+ IA_IFDIR,
+ IA_IFLNK,
+ IA_IFBLK,
+ IA_IFCHR,
+ IA_IFIFO,
+ IA_IFSOCK
+} ia_type_t;
+
+
+typedef struct {
+ uint8_t suid:1;
+ uint8_t sgid:1;
+ uint8_t sticky:1;
+ struct {
+ uint8_t read:1;
+ uint8_t write:1;
+ uint8_t exec:1;
+ } owner, group, other;
+} ia_prot_t;
+
+
+struct iatt {
+ uint64_t ia_ino; /* inode number */
+ uint64_t ia_gen; /* generation number */
+ uint64_t ia_dev; /* backing device ID */
+ ia_type_t ia_type; /* type of file */
+ ia_prot_t ia_prot; /* protection */
+ uint32_t ia_nlink; /* Link count */
+ uint32_t ia_uid; /* user ID of owner */
+ uint32_t ia_gid; /* group ID of owner */
+ uint64_t ia_rdev; /* device ID (if special file) */
+ uint64_t ia_size; /* file size in bytes */
+ uint32_t ia_blksize; /* blocksize for filesystem I/O */
+ uint64_t ia_blocks; /* number of 512B blocks allocated */
+ uint32_t ia_atime; /* last access time */
+ uint32_t ia_atime_nsec;
+ uint32_t ia_mtime; /* last modification time */
+ uint32_t ia_mtime_nsec;
+ uint32_t ia_ctime; /* last status change time */
+ uint32_t ia_ctime_nsec;
+};
+
+
+#define IA_ISREG(t) (t == IA_IFREG)
+#define IA_ISDIR(t) (t == IA_IFDIR)
+#define IA_ISLNK(t) (t == IA_IFLNK)
+#define IA_ISBLK(t) (t == IA_IFBLK)
+#define IA_ISCHR(t) (t == IA_IFCHR)
+#define IA_ISFIFO(t) (t == IA_IFIFO)
+#define IA_ISSOCK(t) (t == IA_IFSOCK)
+
+
+static inline uint32_t
+ia_major (uint64_t ia_dev)
+{
+ return (uint32_t) (ia_dev >> 32);
+}
+
+
+static inline uint32_t
+ia_minor (uint64_t ia_dev)
+{
+ return (uint32_t) (ia_dev & 0xffffffff);
+}
+
+
+static inline uint64_t
+ia_makedev (uint32_t ia_maj, uint32_t ia_min)
+{
+ return ((((uint64_t) ia_maj) << 32) & ia_min);
+}
+
+
+static inline ia_prot_t
+ia_prot_from_st_mode (mode_t mode)
+{
+ ia_prot_t ia_prot = {0, };
+
+ if (mode & S_ISUID)
+ ia_prot.suid = 1;
+ if (mode & S_ISGID)
+ ia_prot.sgid = 1;
+ if (mode & S_ISVTX)
+ ia_prot.sticky = 1;
+
+ if (mode & S_IRUSR)
+ ia_prot.owner.read = 1;
+ if (mode & S_IWUSR)
+ ia_prot.owner.write = 1;
+ if (mode & S_IXUSR)
+ ia_prot.owner.exec = 1;
+
+ if (mode & S_IRGRP)
+ ia_prot.group.read = 1;
+ if (mode & S_IWGRP)
+ ia_prot.group.write = 1;
+ if (mode & S_IXGRP)
+ ia_prot.group.exec = 1;
+
+ if (mode & S_IROTH)
+ ia_prot.other.read = 1;
+ if (mode & S_IWOTH)
+ ia_prot.other.write = 1;
+ if (mode & S_IXOTH)
+ ia_prot.other.exec = 1;
+
+ return ia_prot;
+}
+
+
+static inline ia_type_t
+ia_type_from_st_mode (mode_t mode)
+{
+ ia_type_t type = IA_INVAL;
+
+ if (S_ISREG (mode))
+ type = IA_IFREG;
+ if (S_ISDIR (mode))
+ type = IA_IFDIR;
+ if (S_ISLNK (mode))
+ type = IA_IFLNK;
+ if (S_ISBLK (mode))
+ type = IA_IFBLK;
+ if (S_ISCHR (mode))
+ type = IA_IFCHR;
+ if (S_ISFIFO (mode))
+ type = IA_IFIFO;
+ if (S_ISSOCK (mode))
+ type = IA_IFSOCK;
+
+ return type;
+}
+
+
+static inline mode_t
+st_mode_from_ia (ia_prot_t prot, ia_type_t type)
+{
+ mode_t st_mode = 0;
+ uint32_t type_bit = 0;
+ uint32_t prot_bit = 0;
+
+ switch (type) {
+ case IA_IFREG:
+ type_bit = S_IFREG;
+ break;
+ case IA_IFDIR:
+ type_bit = S_IFDIR;
+ break;
+ case IA_IFLNK:
+ type_bit = S_IFLNK;
+ break;
+ case IA_IFBLK:
+ type_bit = S_IFBLK;
+ break;
+ case IA_IFCHR:
+ type_bit = S_IFCHR;
+ break;
+ case IA_IFIFO:
+ type_bit = S_IFIFO;
+ break;
+ case IA_IFSOCK:
+ type_bit = S_IFSOCK;
+ break;
+ case IA_INVAL:
+ break;
+ }
+
+ if (prot.suid)
+ prot_bit |= S_ISUID;
+ if (prot.sgid)
+ prot_bit |= S_ISGID;
+ if (prot.sticky)
+ prot_bit |= S_ISVTX;
+
+ if (prot.owner.read)
+ prot_bit |= S_IRUSR;
+ if (prot.owner.write)
+ prot_bit |= S_IWUSR;
+ if (prot.owner.exec)
+ prot_bit |= S_IXUSR;
+
+ if (prot.group.read)
+ prot_bit |= S_IRGRP;
+ if (prot.group.write)
+ prot_bit |= S_IWGRP;
+ if (prot.group.exec)
+ prot_bit |= S_IXGRP;
+
+ if (prot.other.read)
+ prot_bit |= S_IROTH;
+ if (prot.other.write)
+ prot_bit |= S_IWOTH;
+ if (prot.other.exec)
+ prot_bit |= S_IXOTH;
+
+ st_mode = (type_bit | prot_bit);
+
+ return st_mode;
+}
+
+
+static inline int
+iatt_from_stat (struct iatt *iatt, struct stat *stat)
+{
+ iatt->ia_dev = stat->st_dev;
+ iatt->ia_ino = stat->st_ino;
+
+ (void) iatt->ia_gen;
+
+ iatt->ia_type = ia_type_from_st_mode (stat->st_mode);
+ iatt->ia_prot = ia_prot_from_st_mode (stat->st_mode);
+
+ iatt->ia_nlink = stat->st_nlink;
+ iatt->ia_uid = stat->st_uid;
+ iatt->ia_gid = stat->st_gid;
+
+ iatt->ia_rdev = ia_makedev (major (stat->st_rdev),
+ minor (stat->st_rdev));
+
+ iatt->ia_size = stat->st_size;
+ iatt->ia_blksize = stat->st_blksize;
+ iatt->ia_blocks = stat->st_blocks;
+
+ iatt->ia_atime = stat->st_atime;
+ iatt->ia_atime_nsec = ST_ATIM_NSEC (stat);
+
+ iatt->ia_mtime = stat->st_mtime;
+ iatt->ia_mtime_nsec = ST_MTIM_NSEC (stat);
+
+ iatt->ia_ctime = stat->st_ctime;
+ iatt->ia_ctime_nsec = ST_CTIM_NSEC (stat);
+
+ return 0;
+}
+
+
+static inline int
+iatt_to_stat (struct iatt *iatt, struct stat *stat)
+{
+ stat->st_dev = iatt->ia_dev;
+ stat->st_ino = iatt->ia_ino;
+
+ (void) iatt->ia_gen;
+
+ stat->st_mode = st_mode_from_ia (iatt->ia_prot, iatt->ia_type);
+
+ stat->st_nlink = iatt->ia_nlink;
+ stat->st_uid = iatt->ia_uid;
+ stat->st_gid = iatt->ia_gid;
+
+ stat->st_rdev = makedev (ia_major (iatt->ia_rdev),
+ ia_minor (iatt->ia_rdev));
+
+ stat->st_size = iatt->ia_size;
+ stat->st_blksize = iatt->ia_blksize;
+ stat->st_blocks = iatt->ia_blocks;
+
+ stat->st_atime = iatt->ia_atime;
+ ST_ATIM_NSEC_SET (stat, iatt->ia_atime_nsec);
+
+ stat->st_mtime = iatt->ia_mtime;
+ ST_MTIM_NSEC_SET (stat, iatt->ia_mtime_nsec);
+
+ stat->st_ctime = iatt->ia_ctime;
+ ST_CTIM_NSEC_SET (stat, iatt->ia_ctime_nsec);
+
+ return 0;
+}
+
+
+#endif /* _IATT_H */
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