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-rw-r--r--include/uapi/linux/Kbuild1
-rw-r--r--include/uapi/linux/aufs_type.h419
-rw-r--r--include/uapi/linux/dm-ioctl.h4
3 files changed, 422 insertions, 2 deletions
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 67a4c60e1..49a6bc538 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -59,6 +59,7 @@ header-y += atmsvc.h
header-y += atm_tcp.h
header-y += atm_zatm.h
header-y += audit.h
+header-y += aufs_type.h
header-y += auto_fs4.h
header-y += auto_fs.h
header-y += auxvec.h
diff --git a/include/uapi/linux/aufs_type.h b/include/uapi/linux/aufs_type.h
new file mode 100644
index 000000000..a1b8204f8
--- /dev/null
+++ b/include/uapi/linux/aufs_type.h
@@ -0,0 +1,419 @@
+/*
+ * Copyright (C) 2005-2015 Junjiro R. Okajima
+ *
+ * This program, aufs 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 2 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 <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __AUFS_TYPE_H__
+#define __AUFS_TYPE_H__
+
+#define AUFS_NAME "aufs"
+
+#ifdef __KERNEL__
+/*
+ * define it before including all other headers.
+ * sched.h may use pr_* macros before defining "current", so define the
+ * no-current version first, and re-define later.
+ */
+#define pr_fmt(fmt) AUFS_NAME " %s:%d: " fmt, __func__, __LINE__
+#include <linux/sched.h>
+#undef pr_fmt
+#define pr_fmt(fmt) \
+ AUFS_NAME " %s:%d:%.*s[%d]: " fmt, __func__, __LINE__, \
+ (int)sizeof(current->comm), current->comm, current->pid
+#else
+#include <stdint.h>
+#include <sys/types.h>
+#endif /* __KERNEL__ */
+
+#include <linux/limits.h>
+
+#define AUFS_VERSION "4.x-rcN-20150921"
+
+/* todo? move this to linux-2.6.19/include/magic.h */
+#define AUFS_SUPER_MAGIC ('a' << 24 | 'u' << 16 | 'f' << 8 | 's')
+
+/* ---------------------------------------------------------------------- */
+
+#ifdef CONFIG_AUFS_BRANCH_MAX_127
+typedef int8_t aufs_bindex_t;
+#define AUFS_BRANCH_MAX 127
+#else
+typedef int16_t aufs_bindex_t;
+#ifdef CONFIG_AUFS_BRANCH_MAX_511
+#define AUFS_BRANCH_MAX 511
+#elif defined(CONFIG_AUFS_BRANCH_MAX_1023)
+#define AUFS_BRANCH_MAX 1023
+#elif defined(CONFIG_AUFS_BRANCH_MAX_32767)
+#define AUFS_BRANCH_MAX 32767
+#endif
+#endif
+
+#ifdef __KERNEL__
+#ifndef AUFS_BRANCH_MAX
+#error unknown CONFIG_AUFS_BRANCH_MAX value
+#endif
+#endif /* __KERNEL__ */
+
+/* ---------------------------------------------------------------------- */
+
+#define AUFS_FSTYPE AUFS_NAME
+
+#define AUFS_ROOT_INO 2
+#define AUFS_FIRST_INO 11
+
+#define AUFS_WH_PFX ".wh."
+#define AUFS_WH_PFX_LEN ((int)sizeof(AUFS_WH_PFX) - 1)
+#define AUFS_WH_TMP_LEN 4
+/* a limit for rmdir/rename a dir and copyup */
+#define AUFS_MAX_NAMELEN (NAME_MAX \
+ - AUFS_WH_PFX_LEN * 2 /* doubly whiteouted */\
+ - 1 /* dot */\
+ - AUFS_WH_TMP_LEN) /* hex */
+#define AUFS_XINO_FNAME "." AUFS_NAME ".xino"
+#define AUFS_XINO_DEFPATH "/tmp/" AUFS_XINO_FNAME
+#define AUFS_XINO_DEF_SEC 30 /* seconds */
+#define AUFS_XINO_DEF_TRUNC 45 /* percentage */
+#define AUFS_DIRWH_DEF 3
+#define AUFS_RDCACHE_DEF 10 /* seconds */
+#define AUFS_RDCACHE_MAX 3600 /* seconds */
+#define AUFS_RDBLK_DEF 512 /* bytes */
+#define AUFS_RDHASH_DEF 32
+#define AUFS_WKQ_NAME AUFS_NAME "d"
+#define AUFS_MFS_DEF_SEC 30 /* seconds */
+#define AUFS_MFS_MAX_SEC 3600 /* seconds */
+#define AUFS_FHSM_CACHE_DEF_SEC 30 /* seconds */
+#define AUFS_PLINK_WARN 50 /* number of plinks in a single bucket */
+
+/* pseudo-link maintenace under /proc */
+#define AUFS_PLINK_MAINT_NAME "plink_maint"
+#define AUFS_PLINK_MAINT_DIR "fs/" AUFS_NAME
+#define AUFS_PLINK_MAINT_PATH AUFS_PLINK_MAINT_DIR "/" AUFS_PLINK_MAINT_NAME
+
+#define AUFS_DIROPQ_NAME AUFS_WH_PFX ".opq" /* whiteouted doubly */
+#define AUFS_WH_DIROPQ AUFS_WH_PFX AUFS_DIROPQ_NAME
+
+#define AUFS_BASE_NAME AUFS_WH_PFX AUFS_NAME
+#define AUFS_PLINKDIR_NAME AUFS_WH_PFX "plnk"
+#define AUFS_ORPHDIR_NAME AUFS_WH_PFX "orph"
+
+/* doubly whiteouted */
+#define AUFS_WH_BASE AUFS_WH_PFX AUFS_BASE_NAME
+#define AUFS_WH_PLINKDIR AUFS_WH_PFX AUFS_PLINKDIR_NAME
+#define AUFS_WH_ORPHDIR AUFS_WH_PFX AUFS_ORPHDIR_NAME
+
+/* branch permissions and attributes */
+#define AUFS_BRPERM_RW "rw"
+#define AUFS_BRPERM_RO "ro"
+#define AUFS_BRPERM_RR "rr"
+#define AUFS_BRATTR_COO_REG "coo_reg"
+#define AUFS_BRATTR_COO_ALL "coo_all"
+#define AUFS_BRATTR_FHSM "fhsm"
+#define AUFS_BRATTR_UNPIN "unpin"
+#define AUFS_BRATTR_ICEX "icex"
+#define AUFS_BRATTR_ICEX_SEC "icexsec"
+#define AUFS_BRATTR_ICEX_SYS "icexsys"
+#define AUFS_BRATTR_ICEX_TR "icextr"
+#define AUFS_BRATTR_ICEX_USR "icexusr"
+#define AUFS_BRATTR_ICEX_OTH "icexoth"
+#define AUFS_BRRATTR_WH "wh"
+#define AUFS_BRWATTR_NLWH "nolwh"
+#define AUFS_BRWATTR_MOO "moo"
+
+#define AuBrPerm_RW 1 /* writable, hardlinkable wh */
+#define AuBrPerm_RO (1 << 1) /* readonly */
+#define AuBrPerm_RR (1 << 2) /* natively readonly */
+#define AuBrPerm_Mask (AuBrPerm_RW | AuBrPerm_RO | AuBrPerm_RR)
+
+#define AuBrAttr_COO_REG (1 << 3) /* copy-up on open */
+#define AuBrAttr_COO_ALL (1 << 4)
+#define AuBrAttr_COO_Mask (AuBrAttr_COO_REG | AuBrAttr_COO_ALL)
+
+#define AuBrAttr_FHSM (1 << 5) /* file-based hsm */
+#define AuBrAttr_UNPIN (1 << 6) /* rename-able top dir of
+ branch. meaningless since
+ linux-3.18-rc1 */
+
+/* ignore error in copying XATTR */
+#define AuBrAttr_ICEX_SEC (1 << 7)
+#define AuBrAttr_ICEX_SYS (1 << 8)
+#define AuBrAttr_ICEX_TR (1 << 9)
+#define AuBrAttr_ICEX_USR (1 << 10)
+#define AuBrAttr_ICEX_OTH (1 << 11)
+#define AuBrAttr_ICEX (AuBrAttr_ICEX_SEC \
+ | AuBrAttr_ICEX_SYS \
+ | AuBrAttr_ICEX_TR \
+ | AuBrAttr_ICEX_USR \
+ | AuBrAttr_ICEX_OTH)
+
+#define AuBrRAttr_WH (1 << 12) /* whiteout-able */
+#define AuBrRAttr_Mask AuBrRAttr_WH
+
+#define AuBrWAttr_NoLinkWH (1 << 13) /* un-hardlinkable whiteouts */
+#define AuBrWAttr_MOO (1 << 14) /* move-up on open */
+#define AuBrWAttr_Mask (AuBrWAttr_NoLinkWH | AuBrWAttr_MOO)
+
+#define AuBrAttr_CMOO_Mask (AuBrAttr_COO_Mask | AuBrWAttr_MOO)
+
+/* #warning test userspace */
+#ifdef __KERNEL__
+#ifndef CONFIG_AUFS_FHSM
+#undef AuBrAttr_FHSM
+#define AuBrAttr_FHSM 0
+#endif
+#ifndef CONFIG_AUFS_XATTR
+#undef AuBrAttr_ICEX
+#define AuBrAttr_ICEX 0
+#undef AuBrAttr_ICEX_SEC
+#define AuBrAttr_ICEX_SEC 0
+#undef AuBrAttr_ICEX_SYS
+#define AuBrAttr_ICEX_SYS 0
+#undef AuBrAttr_ICEX_TR
+#define AuBrAttr_ICEX_TR 0
+#undef AuBrAttr_ICEX_USR
+#define AuBrAttr_ICEX_USR 0
+#undef AuBrAttr_ICEX_OTH
+#define AuBrAttr_ICEX_OTH 0
+#endif
+#endif
+
+/* the longest combination */
+/* AUFS_BRATTR_ICEX and AUFS_BRATTR_ICEX_TR don't affect here */
+#define AuBrPermStrSz sizeof(AUFS_BRPERM_RW \
+ "+" AUFS_BRATTR_COO_REG \
+ "+" AUFS_BRATTR_FHSM \
+ "+" AUFS_BRATTR_UNPIN \
+ "+" AUFS_BRATTR_ICEX_SEC \
+ "+" AUFS_BRATTR_ICEX_SYS \
+ "+" AUFS_BRATTR_ICEX_USR \
+ "+" AUFS_BRATTR_ICEX_OTH \
+ "+" AUFS_BRWATTR_NLWH)
+
+typedef struct {
+ char a[AuBrPermStrSz];
+} au_br_perm_str_t;
+
+static inline int au_br_writable(int brperm)
+{
+ return brperm & AuBrPerm_RW;
+}
+
+static inline int au_br_whable(int brperm)
+{
+ return brperm & (AuBrPerm_RW | AuBrRAttr_WH);
+}
+
+static inline int au_br_wh_linkable(int brperm)
+{
+ return !(brperm & AuBrWAttr_NoLinkWH);
+}
+
+static inline int au_br_cmoo(int brperm)
+{
+ return brperm & AuBrAttr_CMOO_Mask;
+}
+
+static inline int au_br_fhsm(int brperm)
+{
+ return brperm & AuBrAttr_FHSM;
+}
+
+/* ---------------------------------------------------------------------- */
+
+/* ioctl */
+enum {
+ /* readdir in userspace */
+ AuCtl_RDU,
+ AuCtl_RDU_INO,
+
+ AuCtl_WBR_FD, /* pathconf wrapper */
+ AuCtl_IBUSY, /* busy inode */
+ AuCtl_MVDOWN, /* move-down */
+ AuCtl_BR, /* info about branches */
+ AuCtl_FHSM_FD /* connection for fhsm */
+};
+
+/* borrowed from linux/include/linux/kernel.h */
+#ifndef ALIGN
+#define ALIGN(x, a) __ALIGN_MASK(x, (typeof(x))(a)-1)
+#define __ALIGN_MASK(x, mask) (((x)+(mask))&~(mask))
+#endif
+
+/* borrowed from linux/include/linux/compiler-gcc3.h */
+#ifndef __aligned
+#define __aligned(x) __attribute__((aligned(x)))
+#endif
+
+#ifdef __KERNEL__
+#ifndef __packed
+#define __packed __attribute__((packed))
+#endif
+#endif
+
+struct au_rdu_cookie {
+ uint64_t h_pos;
+ int16_t bindex;
+ uint8_t flags;
+ uint8_t pad;
+ uint32_t generation;
+} __aligned(8);
+
+struct au_rdu_ent {
+ uint64_t ino;
+ int16_t bindex;
+ uint8_t type;
+ uint8_t nlen;
+ uint8_t wh;
+ char name[0];
+} __aligned(8);
+
+static inline int au_rdu_len(int nlen)
+{
+ /* include the terminating NULL */
+ return ALIGN(sizeof(struct au_rdu_ent) + nlen + 1,
+ sizeof(uint64_t));
+}
+
+union au_rdu_ent_ul {
+ struct au_rdu_ent __user *e;
+ uint64_t ul;
+};
+
+enum {
+ AufsCtlRduV_SZ,
+ AufsCtlRduV_End
+};
+
+struct aufs_rdu {
+ /* input */
+ union {
+ uint64_t sz; /* AuCtl_RDU */
+ uint64_t nent; /* AuCtl_RDU_INO */
+ };
+ union au_rdu_ent_ul ent;
+ uint16_t verify[AufsCtlRduV_End];
+
+ /* input/output */
+ uint32_t blk;
+
+ /* output */
+ union au_rdu_ent_ul tail;
+ /* number of entries which were added in a single call */
+ uint64_t rent;
+ uint8_t full;
+ uint8_t shwh;
+
+ struct au_rdu_cookie cookie;
+} __aligned(8);
+
+/* ---------------------------------------------------------------------- */
+
+struct aufs_wbr_fd {
+ uint32_t oflags;
+ int16_t brid;
+} __aligned(8);
+
+/* ---------------------------------------------------------------------- */
+
+struct aufs_ibusy {
+ uint64_t ino, h_ino;
+ int16_t bindex;
+} __aligned(8);
+
+/* ---------------------------------------------------------------------- */
+
+/* error code for move-down */
+/* the actual message strings are implemented in aufs-util.git */
+enum {
+ EAU_MVDOWN_OPAQUE = 1,
+ EAU_MVDOWN_WHITEOUT,
+ EAU_MVDOWN_UPPER,
+ EAU_MVDOWN_BOTTOM,
+ EAU_MVDOWN_NOUPPER,
+ EAU_MVDOWN_NOLOWERBR,
+ EAU_Last
+};
+
+/* flags for move-down */
+#define AUFS_MVDOWN_DMSG 1
+#define AUFS_MVDOWN_OWLOWER (1 << 1) /* overwrite lower */
+#define AUFS_MVDOWN_KUPPER (1 << 2) /* keep upper */
+#define AUFS_MVDOWN_ROLOWER (1 << 3) /* do even if lower is RO */
+#define AUFS_MVDOWN_ROLOWER_R (1 << 4) /* did on lower RO */
+#define AUFS_MVDOWN_ROUPPER (1 << 5) /* do even if upper is RO */
+#define AUFS_MVDOWN_ROUPPER_R (1 << 6) /* did on upper RO */
+#define AUFS_MVDOWN_BRID_UPPER (1 << 7) /* upper brid */
+#define AUFS_MVDOWN_BRID_LOWER (1 << 8) /* lower brid */
+#define AUFS_MVDOWN_FHSM_LOWER (1 << 9) /* find fhsm attr for lower */
+#define AUFS_MVDOWN_STFS (1 << 10) /* req. stfs */
+#define AUFS_MVDOWN_STFS_FAILED (1 << 11) /* output: stfs is unusable */
+#define AUFS_MVDOWN_BOTTOM (1 << 12) /* output: no more lowers */
+
+/* index for move-down */
+enum {
+ AUFS_MVDOWN_UPPER,
+ AUFS_MVDOWN_LOWER,
+ AUFS_MVDOWN_NARRAY
+};
+
+/*
+ * additional info of move-down
+ * number of free blocks and inodes.
+ * subset of struct kstatfs, but smaller and always 64bit.
+ */
+struct aufs_stfs {
+ uint64_t f_blocks;
+ uint64_t f_bavail;
+ uint64_t f_files;
+ uint64_t f_ffree;
+};
+
+struct aufs_stbr {
+ int16_t brid; /* optional input */
+ int16_t bindex; /* output */
+ struct aufs_stfs stfs; /* output when AUFS_MVDOWN_STFS set */
+} __aligned(8);
+
+struct aufs_mvdown {
+ uint32_t flags; /* input/output */
+ struct aufs_stbr stbr[AUFS_MVDOWN_NARRAY]; /* input/output */
+ int8_t au_errno; /* output */
+} __aligned(8);
+
+/* ---------------------------------------------------------------------- */
+
+union aufs_brinfo {
+ /* PATH_MAX may differ between kernel-space and user-space */
+ char _spacer[4096];
+ struct {
+ int16_t id;
+ int perm;
+ char path[0];
+ };
+} __aligned(8);
+
+/* ---------------------------------------------------------------------- */
+
+#define AuCtlType 'A'
+#define AUFS_CTL_RDU _IOWR(AuCtlType, AuCtl_RDU, struct aufs_rdu)
+#define AUFS_CTL_RDU_INO _IOWR(AuCtlType, AuCtl_RDU_INO, struct aufs_rdu)
+#define AUFS_CTL_WBR_FD _IOW(AuCtlType, AuCtl_WBR_FD, \
+ struct aufs_wbr_fd)
+#define AUFS_CTL_IBUSY _IOWR(AuCtlType, AuCtl_IBUSY, struct aufs_ibusy)
+#define AUFS_CTL_MVDOWN _IOWR(AuCtlType, AuCtl_MVDOWN, \
+ struct aufs_mvdown)
+#define AUFS_CTL_BRINFO _IOW(AuCtlType, AuCtl_BR, union aufs_brinfo)
+#define AUFS_CTL_FHSM_FD _IOW(AuCtlType, AuCtl_FHSM_FD, int)
+
+#endif /* __AUFS_TYPE_H__ */
diff --git a/include/uapi/linux/dm-ioctl.h b/include/uapi/linux/dm-ioctl.h
index 061aca3a9..d34611e35 100644
--- a/include/uapi/linux/dm-ioctl.h
+++ b/include/uapi/linux/dm-ioctl.h
@@ -267,9 +267,9 @@ enum {
#define DM_DEV_SET_GEOMETRY _IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
#define DM_VERSION_MAJOR 4
-#define DM_VERSION_MINOR 32
+#define DM_VERSION_MINOR 33
#define DM_VERSION_PATCHLEVEL 0
-#define DM_VERSION_EXTRA "-ioctl (2015-6-26)"
+#define DM_VERSION_EXTRA "-ioctl (2015-8-18)"
/* Status bits */
#define DM_READONLY_FLAG (1 << 0) /* In/Out */