diff options
Diffstat (limited to 'xlators/storage/posix/src/posix.c')
| -rw-r--r-- | xlators/storage/posix/src/posix.c | 5074 |
1 files changed, 75 insertions, 4999 deletions
diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c index 3c7816cfb8c..42b965434b9 100644 --- a/xlators/storage/posix/src/posix.c +++ b/xlators/storage/posix/src/posix.c @@ -1,5 +1,5 @@ /* - Copyright (c) 2006-2012 Red Hat, Inc. <http://www.redhat.com> + Copyright (c) 2006-2017 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. This file is licensed to you under your choice of the GNU Lesser @@ -7,5019 +7,95 @@ later), or the GNU General Public License, version 2 (GPLv2), in all cases as published by the Free Software Foundation. */ -#ifndef _CONFIG_H -#define _CONFIG_H -#include "config.h" -#endif - #define __XOPEN_SOURCE 500 -#include <openssl/md5.h> -#include <stdint.h> -#include <sys/time.h> -#include <sys/resource.h> -#include <errno.h> -#include <libgen.h> -#include <pthread.h> -#include <ftw.h> -#include <sys/stat.h> -#include <signal.h> - -#ifndef GF_BSD_HOST_OS -#include <alloca.h> -#endif /* GF_BSD_HOST_OS */ - -#ifdef HAVE_LINKAT -#include <fcntl.h> -#endif /* HAVE_LINKAT */ - -#include "glusterfs.h" -#include "checksum.h" -#include "dict.h" -#include "logging.h" -#include "posix.h" -#include "xlator.h" -#include "defaults.h" -#include "common-utils.h" -#include "compat-errno.h" -#include "compat.h" -#include "byte-order.h" -#include "syscall.h" -#include "statedump.h" -#include "locking.h" -#include "timer.h" -#include "glusterfs3-xdr.h" -#include "hashfn.h" -#include "posix-aio.h" - -extern char *marker_xattrs[]; -#define ALIGN_SIZE 4096 - -#undef HAVE_SET_FSID -#ifdef HAVE_SET_FSID - -#define DECLARE_OLD_FS_ID_VAR uid_t old_fsuid; gid_t old_fsgid; - -#define SET_FS_ID(uid, gid) do { \ - old_fsuid = setfsuid (uid); \ - old_fsgid = setfsgid (gid); \ - } while (0) - -#define SET_TO_OLD_FS_ID() do { \ - setfsuid (old_fsuid); \ - setfsgid (old_fsgid); \ - } while (0) - -#else - -#define DECLARE_OLD_FS_ID_VAR -#define SET_FS_ID(uid, gid) -#define SET_TO_OLD_FS_ID() - -#endif - -int -posix_forget (xlator_t *this, inode_t *inode) -{ - uint64_t tmp_cache = 0; - if (!inode_ctx_del (inode, this, &tmp_cache)) - dict_destroy ((dict_t *)(long)tmp_cache); - - return 0; -} - -/* Regular fops */ - -int32_t -posix_lookup (call_frame_t *frame, xlator_t *this, - loc_t *loc, dict_t *xdata) -{ - struct iatt buf = {0, }; - int32_t op_ret = -1; - int32_t entry_ret = 0; - int32_t op_errno = 0; - dict_t * xattr = NULL; - char * real_path = NULL; - char * par_path = NULL; - struct iatt postparent = {0,}; - int32_t gfidless = 0; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - - /* The Hidden directory should be for housekeeping purpose and it - should not get any gfid on it */ - if (__is_root_gfid (loc->pargfid) && - (strcmp (loc->name, GF_HIDDEN_PATH) == 0)) { - gf_log (this->name, GF_LOG_WARNING, - "Lookup issued on %s, which is not permitted", - GF_HIDDEN_PATH); - op_errno = EPERM; - op_ret = -1; - goto out; - } - - op_ret = dict_get_int32 (xdata, GF_GFIDLESS_LOOKUP, &gfidless); - op_ret = -1; - if (uuid_is_null (loc->pargfid)) { - /* nameless lookup */ - MAKE_INODE_HANDLE (real_path, this, loc, &buf); - } else { - MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &buf); - - if (uuid_is_null (loc->inode->gfid)) { - posix_gfid_heal (this, real_path, loc, xdata); - MAKE_ENTRY_HANDLE (real_path, par_path, this, - loc, &buf); - } - } - - op_errno = errno; - - if (op_ret == -1) { - if (op_errno != ENOENT) { - gf_log (this->name, GF_LOG_ERROR, - "lstat on %s failed: %s", - real_path, strerror (op_errno)); - } - - entry_ret = -1; - goto parent; - } - - if (xdata && (op_ret == 0)) { - xattr = posix_lookup_xattr_fill (this, real_path, loc, - xdata, &buf); - } - -parent: - if (par_path) { - op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "post-operation lstat on parent %s failed: %s", - par_path, strerror (op_errno)); - goto out; - } - } - - op_ret = entry_ret; -out: - if (xattr) - dict_ref (xattr); - - if (!op_ret && !gfidless && uuid_is_null (buf.ia_gfid)) { - gf_log (this->name, GF_LOG_ERROR, "buf->ia_gfid is null for " - "%s", (real_path) ? real_path: ""); - op_ret = -1; - op_errno = ENODATA; - } - STACK_UNWIND_STRICT (lookup, frame, op_ret, op_errno, - (loc)?loc->inode:NULL, &buf, xattr, &postparent); - - if (xattr) - dict_unref (xattr); - - return 0; -} - - -int32_t -posix_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata) -{ - struct iatt buf = {0,}; - int32_t op_ret = -1; - int32_t op_errno = 0; - struct posix_private *priv = NULL; - char *real_path = NULL; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - - priv = this->private; - VALIDATE_OR_GOTO (priv, out); - - SET_FS_ID (frame->root->uid, frame->root->gid); - - MAKE_INODE_HANDLE (real_path, this, loc, &buf); - - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, (op_errno == ENOENT)? - GF_LOG_DEBUG:GF_LOG_ERROR, - "lstat on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID(); - STACK_UNWIND_STRICT (stat, frame, op_ret, op_errno, &buf, NULL); - - return 0; -} - -static int -posix_do_chmod (xlator_t *this, const char *path, struct iatt *stbuf) -{ - int32_t ret = -1; - mode_t mode = 0; - struct stat stat; - int is_symlink = 0; - - ret = sys_lstat (path, &stat); - if (ret != 0) { - gf_log (this->name, GF_LOG_WARNING, - "lstat failed: %s (%s)", path, strerror (errno)); - goto out; - } - - if (S_ISLNK (stat.st_mode)) - is_symlink = 1; - - mode = st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type); - ret = lchmod (path, mode); - if ((ret == -1) && (errno == ENOSYS)) { - /* in Linux symlinks are always in mode 0777 and no - such call as lchmod exists. - */ - gf_log (this->name, GF_LOG_DEBUG, - "%s (%s)", path, strerror (errno)); - if (is_symlink) { - ret = 0; - goto out; - } - - ret = chmod (path, mode); - } -out: - return ret; -} - -static int -posix_do_chown (xlator_t *this, - const char *path, - struct iatt *stbuf, - int32_t valid) -{ - int32_t ret = -1; - uid_t uid = -1; - gid_t gid = -1; - - if (valid & GF_SET_ATTR_UID) - uid = stbuf->ia_uid; - - if (valid & GF_SET_ATTR_GID) - gid = stbuf->ia_gid; - - ret = lchown (path, uid, gid); - - return ret; -} - -static int -posix_do_utimes (xlator_t *this, - const char *path, - struct iatt *stbuf) -{ - int32_t ret = -1; - struct timeval tv[2] = {{0,},{0,}}; - struct stat stat; - int is_symlink = 0; - - ret = sys_lstat (path, &stat); - if (ret != 0) { - gf_log (this->name, GF_LOG_WARNING, - "%s (%s)", path, strerror (errno)); - goto out; - } - - if (S_ISLNK (stat.st_mode)) - is_symlink = 1; - - tv[0].tv_sec = stbuf->ia_atime; - tv[0].tv_usec = stbuf->ia_atime_nsec / 1000; - tv[1].tv_sec = stbuf->ia_mtime; - tv[1].tv_usec = stbuf->ia_mtime_nsec / 1000; - - ret = lutimes (path, tv); - if ((ret == -1) && (errno == ENOSYS)) { - gf_log (this->name, GF_LOG_DEBUG, - "%s (%s)", path, strerror (errno)); - if (is_symlink) { - ret = 0; - goto out; - } - - ret = utimes (path, tv); - } - -out: - return ret; -} - -int -posix_setattr (call_frame_t *frame, xlator_t *this, - loc_t *loc, struct iatt *stbuf, int32_t valid, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - char * real_path = 0; - struct iatt statpre = {0,}; - struct iatt statpost = {0,}; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - - SET_FS_ID (frame->root->uid, frame->root->gid); - MAKE_INODE_HANDLE (real_path, this, loc, &statpre); - - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "setattr (lstat) on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - - if (valid & GF_SET_ATTR_MODE) { - op_ret = posix_do_chmod (this, real_path, stbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "setattr (chmod) on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - } - - if (valid & (GF_SET_ATTR_UID | GF_SET_ATTR_GID)){ - op_ret = posix_do_chown (this, real_path, stbuf, valid); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "setattr (chown) on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - } - - if (valid & (GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME)) { - op_ret = posix_do_utimes (this, real_path, stbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "setattr (utimes) on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - } - - if (!valid) { - op_ret = lchown (real_path, -1, -1); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "lchown (%s, -1, -1) failed => (%s)", - real_path, strerror (op_errno)); - - goto out; - } - } - - op_ret = posix_pstat (this, loc->gfid, real_path, &statpost); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "setattr (lstat) on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (setattr, frame, op_ret, op_errno, - &statpre, &statpost, NULL); - - return 0; -} - -int32_t -posix_do_fchown (xlator_t *this, - int fd, - struct iatt *stbuf, - int32_t valid) -{ - int ret = -1; - uid_t uid = -1; - gid_t gid = -1; - - if (valid & GF_SET_ATTR_UID) - uid = stbuf->ia_uid; - - if (valid & GF_SET_ATTR_GID) - gid = stbuf->ia_gid; - - ret = fchown (fd, uid, gid); - - return ret; -} - - -int32_t -posix_do_fchmod (xlator_t *this, - int fd, struct iatt *stbuf) -{ - mode_t mode = 0; - - mode = st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type); - return fchmod (fd, mode); -} - -static int -posix_do_futimes (xlator_t *this, - int fd, - struct iatt *stbuf) -{ - gf_log (this->name, GF_LOG_WARNING, "function not implemented fd(%d)", fd); - - errno = ENOSYS; - return -1; -} - -int -posix_fsetattr (call_frame_t *frame, xlator_t *this, - fd_t *fd, struct iatt *stbuf, int32_t valid, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - struct iatt statpre = {0,}; - struct iatt statpost = {0,}; - struct posix_fd *pfd = NULL; - int32_t ret = -1; - - DECLARE_OLD_FS_ID_VAR; - - SET_FS_ID (frame->root->uid, frame->root->gid); - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - op_errno = -ret; - gf_log (this->name, GF_LOG_DEBUG, - "pfd is NULL from fd=%p", fd); - goto out; - } - - op_ret = posix_fdstat (this, pfd->fd, &statpre); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "fsetattr (fstat) failed on fd=%p: %s", fd, - strerror (op_errno)); - goto out; - } - - if (valid & GF_SET_ATTR_MODE) { - op_ret = posix_do_fchmod (this, pfd->fd, stbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "fsetattr (fchmod) failed on fd=%p: %s", - fd, strerror (op_errno)); - goto out; - } - } - - if (valid & (GF_SET_ATTR_UID | GF_SET_ATTR_GID)) { - op_ret = posix_do_fchown (this, pfd->fd, stbuf, valid); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "fsetattr (fchown) failed on fd=%p: %s", - fd, strerror (op_errno)); - goto out; - } - - } - - if (valid & (GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME)) { - op_ret = posix_do_futimes (this, pfd->fd, stbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "fsetattr (futimes) on failed fd=%p: %s", fd, - strerror (op_errno)); - goto out; - } - } - - if (!valid) { - op_ret = fchown (pfd->fd, -1, -1); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "fchown (%d, -1, -1) failed => (%s)", - pfd->fd, strerror (op_errno)); - - goto out; - } - } - - op_ret = posix_fdstat (this, pfd->fd, &statpost); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "fsetattr (fstat) failed on fd=%p: %s", fd, - strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (fsetattr, frame, op_ret, op_errno, - &statpre, &statpost, NULL); - - return 0; -} - -static int32_t -posix_do_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t flags, - off_t offset, size_t len, struct iatt *statpre, - struct iatt *statpost) -{ - struct posix_fd *pfd = NULL; - int32_t ret = -1; - - DECLARE_OLD_FS_ID_VAR; - - SET_FS_ID (frame->root->uid, frame->root->gid); - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - gf_log (this->name, GF_LOG_DEBUG, - "pfd is NULL from fd=%p", fd); - goto out; - } - - ret = posix_fdstat (this, pfd->fd, statpre); - if (ret == -1) { - ret = -errno; - gf_log (this->name, GF_LOG_ERROR, - "fallocate (fstat) failed on fd=%p: %s", fd, - strerror (errno)); - goto out; - } - - ret = sys_fallocate(pfd->fd, flags, offset, len); - if (ret == -1) { - ret = -errno; - goto out; - } - - ret = posix_fdstat (this, pfd->fd, statpost); - if (ret == -1) { - ret = -errno; - gf_log (this->name, GF_LOG_ERROR, - "fallocate (fstat) failed on fd=%p: %s", fd, - strerror (errno)); - goto out; - } - -out: - SET_TO_OLD_FS_ID (); - - return ret; -} - -static int32_t -_posix_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t keep_size, - off_t offset, size_t len, dict_t *xdata) -{ - int32_t ret; - int32_t flags = 0; - struct iatt statpre = {0,}; - struct iatt statpost = {0,}; - - if (keep_size) - flags = FALLOC_FL_KEEP_SIZE; - - ret = posix_do_fallocate(frame, this, fd, flags, offset, len, - &statpre, &statpost); - if (ret < 0) - goto err; - - STACK_UNWIND_STRICT(fallocate, frame, 0, 0, &statpre, &statpost, NULL); - return 0; - -err: - STACK_UNWIND_STRICT(fallocate, frame, -1, -ret, NULL, NULL, NULL); - return 0; -} - -static int32_t -posix_discard(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset, - size_t len, dict_t *xdata) -{ - int32_t ret; - int32_t flags = FALLOC_FL_KEEP_SIZE|FALLOC_FL_PUNCH_HOLE; - struct iatt statpre = {0,}; - struct iatt statpost = {0,}; - - ret = posix_do_fallocate(frame, this, fd, flags, offset, len, - &statpre, &statpost); - if (ret < 0) - goto err; - - STACK_UNWIND_STRICT(discard, frame, 0, 0, &statpre, &statpost, NULL); - return 0; - -err: - STACK_UNWIND_STRICT(discard, frame, -1, -ret, NULL, NULL, NULL); - return 0; - -} - -int32_t -posix_opendir (call_frame_t *frame, xlator_t *this, - loc_t *loc, fd_t *fd, dict_t *xdata) -{ - char * real_path = NULL; - int32_t op_ret = -1; - int32_t op_errno = EINVAL; - DIR * dir = NULL; - struct posix_fd * pfd = NULL; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - VALIDATE_OR_GOTO (loc->path, out); - VALIDATE_OR_GOTO (fd, out); - - SET_FS_ID (frame->root->uid, frame->root->gid); - MAKE_INODE_HANDLE (real_path, this, loc, NULL); - - op_ret = -1; - dir = opendir (real_path); - - if (dir == NULL) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "opendir failed on %s: %s", - real_path, strerror (op_errno)); - goto out; - } - - op_ret = dirfd (dir); - if (op_ret < 0) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "dirfd() failed on %s: %s", - real_path, strerror (op_errno)); - goto out; - } - - pfd = GF_CALLOC (1, sizeof (*pfd), gf_posix_mt_posix_fd); - if (!pfd) { - op_errno = errno; - goto out; - } - - pfd->dir = dir; - pfd->fd = dirfd (dir); - - op_ret = fd_ctx_set (fd, this, (uint64_t)(long)pfd); - if (op_ret) - gf_log (this->name, GF_LOG_WARNING, - "failed to set the fd context path=%s fd=%p", - real_path, fd); - - op_ret = 0; - -out: - if (op_ret == -1) { - if (dir) { - closedir (dir); - dir = NULL; - } - if (pfd) { - GF_FREE (pfd); - pfd = NULL; - } - } - - SET_TO_OLD_FS_ID (); - STACK_UNWIND_STRICT (opendir, frame, op_ret, op_errno, fd, NULL); - return 0; -} - -int32_t -posix_releasedir (xlator_t *this, - fd_t *fd) -{ - struct posix_fd * pfd = NULL; - uint64_t tmp_pfd = 0; - int ret = 0; - - struct posix_private *priv = NULL; - - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - - ret = fd_ctx_del (fd, this, &tmp_pfd); - if (ret < 0) { - gf_log (this->name, GF_LOG_DEBUG, - "pfd from fd=%p is NULL", fd); - goto out; - } - - pfd = (struct posix_fd *)(long)tmp_pfd; - if (!pfd->dir) { - gf_log (this->name, GF_LOG_WARNING, - "pfd->dir is NULL for fd=%p", fd); - goto out; - } - - priv = this->private; - - pthread_mutex_lock (&priv->janitor_lock); - { - INIT_LIST_HEAD (&pfd->list); - list_add_tail (&pfd->list, &priv->janitor_fds); - pthread_cond_signal (&priv->janitor_cond); - } - pthread_mutex_unlock (&priv->janitor_lock); - -out: - return 0; -} - - -int32_t -posix_readlink (call_frame_t *frame, xlator_t *this, - loc_t *loc, size_t size, dict_t *xdata) -{ - char * dest = NULL; - int32_t op_ret = -1; - int32_t op_errno = 0; - char * real_path = NULL; - struct iatt stbuf = {0,}; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - - SET_FS_ID (frame->root->uid, frame->root->gid); - - dest = alloca (size + 1); - - MAKE_INODE_HANDLE (real_path, this, loc, &stbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "lstat on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - - op_ret = readlink (real_path, dest, size); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "readlink on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - - dest[op_ret] = 0; -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (readlink, frame, op_ret, op_errno, dest, &stbuf, NULL); - - return 0; -} - - -int -posix_mknod (call_frame_t *frame, xlator_t *this, - loc_t *loc, mode_t mode, dev_t dev, mode_t umask, dict_t *xdata) -{ - int tmp_fd = 0; - int32_t op_ret = -1; - int32_t op_errno = 0; - char *real_path = 0; - char *par_path = 0; - struct iatt stbuf = { 0, }; - char was_present = 1; - struct posix_private *priv = NULL; - gid_t gid = 0; - struct iatt preparent = {0,}; - struct iatt postparent = {0,}; - void * uuid_req = NULL; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - - priv = this->private; - VALIDATE_OR_GOTO (priv, out); - - MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, NULL); - - gid = frame->root->gid; - - SET_FS_ID (frame->root->uid, gid); - - op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "pre-operation lstat on parent of %s failed: %s", - real_path, strerror (op_errno)); - goto out; - } - - if (preparent.ia_prot.sgid) { - gid = preparent.ia_gid; - } - - /* Check if the 'gfid' already exists, because this mknod may be an - internal call from distribute for creating 'linkfile', and that - linkfile may be for a hardlinked file */ - if (dict_get (xdata, GLUSTERFS_INTERNAL_FOP_KEY)) { - dict_del (xdata, GLUSTERFS_INTERNAL_FOP_KEY); - op_ret = dict_get_ptr (xdata, "gfid-req", &uuid_req); - if (op_ret) { - gf_log (this->name, GF_LOG_DEBUG, - "failed to get the gfid from dict for %s", - loc->path); - goto real_op; - } - op_ret = posix_create_link_if_gfid_exists (this, uuid_req, - real_path); - if (!op_ret) - goto post_op; - } - -real_op: -#ifdef __NetBSD__ - if (S_ISFIFO(mode)) - op_ret = mkfifo (real_path, mode); - else -#endif /* __NetBSD__ */ - op_ret = mknod (real_path, mode, dev); - - if (op_ret == -1) { - op_errno = errno; - if ((op_errno == EINVAL) && S_ISREG (mode)) { - /* Over Darwin, mknod with (S_IFREG|mode) - doesn't work */ - tmp_fd = creat (real_path, mode); - if (tmp_fd == -1) { - gf_log (this->name, GF_LOG_ERROR, - "create failed on %s: %s", - real_path, strerror (errno)); - goto out; - } - close (tmp_fd); - } else { - - gf_log (this->name, GF_LOG_ERROR, - "mknod on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - } - - op_ret = posix_gfid_set (this, real_path, loc, xdata); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, - "setting gfid on %s failed", real_path); - } - -#ifndef HAVE_SET_FSID - op_ret = lchown (real_path, frame->root->uid, gid); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "lchown on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } -#endif - -post_op: - op_ret = posix_acl_xattr_set (this, real_path, xdata); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, - "setting ACLs on %s failed (%s)", real_path, - strerror (errno)); - } - - op_ret = posix_entry_create_xattr_set (this, real_path, xdata); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, - "setting xattrs on %s failed (%s)", real_path, - strerror (errno)); - } - - op_ret = posix_pstat (this, NULL, real_path, &stbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "mknod on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - - op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "post-operation lstat on parent %s failed: %s", - par_path, strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (mknod, frame, op_ret, op_errno, - (loc)?loc->inode:NULL, &stbuf, &preparent, - &postparent, NULL); - - if ((op_ret == -1) && (!was_present)) { - unlink (real_path); - } - - return 0; -} - - -int -posix_mkdir (call_frame_t *frame, xlator_t *this, - loc_t *loc, mode_t mode, mode_t umask, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - char *real_path = NULL; - char *par_path = NULL; - struct iatt stbuf = {0, }; - char was_present = 1; - struct posix_private *priv = NULL; - gid_t gid = 0; - struct iatt preparent = {0,}; - struct iatt postparent = {0,}; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - - /* The Hidden directory should be for housekeeping purpose and it - should not get created from a user request */ - if (__is_root_gfid (loc->pargfid) && - (strcmp (loc->name, GF_HIDDEN_PATH) == 0)) { - gf_log (this->name, GF_LOG_WARNING, - "mkdir issued on %s, which is not permitted", - GF_HIDDEN_PATH); - op_errno = EPERM; - op_ret = -1; - goto out; - } - - priv = this->private; - VALIDATE_OR_GOTO (priv, out); - - MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, NULL); - - gid = frame->root->gid; - - op_ret = posix_pstat (this, NULL, real_path, &stbuf); - if ((op_ret == -1) && (errno == ENOENT)) { - was_present = 0; - } - - SET_FS_ID (frame->root->uid, gid); - - op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "pre-operation lstat on parent %s failed: %s", - par_path, strerror (op_errno)); - goto out; - } - - if (preparent.ia_prot.sgid) { - gid = preparent.ia_gid; - mode |= S_ISGID; - } - - op_ret = mkdir (real_path, mode); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "mkdir of %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - - op_ret = posix_gfid_set (this, real_path, loc, xdata); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, - "setting gfid on %s failed", real_path); - } - -#ifndef HAVE_SET_FSID - op_ret = chown (real_path, frame->root->uid, gid); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "chown on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } +/* for SEEK_HOLE and SEEK_DATA */ +#ifndef _GNU_SOURCE +#define _GNU_SOURCE #endif - op_ret = posix_acl_xattr_set (this, real_path, xdata); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, - "setting ACLs on %s failed (%s)", real_path, - strerror (errno)); - } - - op_ret = posix_entry_create_xattr_set (this, real_path, xdata); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, - "setting xattrs on %s failed (%s)", real_path, - strerror (errno)); - } - - op_ret = posix_pstat (this, NULL, real_path, &stbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "lstat on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - - op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "post-operation lstat on parent of %s failed: %s", - real_path, strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (mkdir, frame, op_ret, op_errno, - (loc)?loc->inode:NULL, &stbuf, &preparent, - &postparent, NULL); - - if ((op_ret == -1) && (!was_present)) { - unlink (real_path); - } - - return 0; -} - - -int32_t -posix_unlink (call_frame_t *frame, xlator_t *this, - loc_t *loc, int xflag, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - char *real_path = NULL; - char *par_path = NULL; - int32_t fd = -1; - struct iatt stbuf = {0,}; - struct posix_private *priv = NULL; - struct iatt preparent = {0,}; - struct iatt postparent = {0,}; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - - SET_FS_ID (frame->root->uid, frame->root->gid); - MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &stbuf); - - op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "pre-operation lstat on parent %s failed: %s", - par_path, strerror (op_errno)); - goto out; - } - - if (stbuf.ia_nlink == 1) - posix_handle_unset (this, stbuf.ia_gfid, NULL); - - priv = this->private; - if (priv->background_unlink) { - if (IA_ISREG (loc->inode->ia_type)) { - fd = open (real_path, O_RDONLY); - if (fd == -1) { - op_ret = -1; - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "open of %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - } - } - - op_ret = sys_unlink (real_path); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "unlink of %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - - op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "post-operation lstat on parent %s failed: %s", - par_path, strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (unlink, frame, op_ret, op_errno, - &preparent, &postparent, NULL); - - if (fd != -1) { - close (fd); - } - - return 0; -} - - -int -posix_rmdir (call_frame_t *frame, xlator_t *this, - loc_t *loc, int flags, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - char * real_path = NULL; - char * par_path = NULL; - char * gfid_str = NULL; - struct iatt preparent = {0,}; - struct iatt postparent = {0,}; - struct iatt stbuf; - struct posix_private *priv = NULL; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - - SET_FS_ID (frame->root->uid, frame->root->gid); - - /* The Hidden directory should be for housekeeping purpose and it - should not get deleted from inside process */ - if (__is_root_gfid (loc->pargfid) && - (strcmp (loc->name, GF_HIDDEN_PATH) == 0)) { - gf_log (this->name, GF_LOG_WARNING, - "rmdir issued on %s, which is not permitted", - GF_HIDDEN_PATH); - op_errno = EPERM; - op_ret = -1; - goto out; - } - - priv = this->private; - - MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &stbuf); - - op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "pre-operation lstat on parent %s failed: %s", - par_path, strerror (op_errno)); - goto out; - } - - if (flags) { - gfid_str = uuid_utoa (stbuf.ia_gfid); - char *tmp_path = alloca (strlen (priv->trash_path) + - strlen ("/") + - strlen (gfid_str) + 1); - - mkdir (priv->trash_path, 0755); - sprintf (tmp_path, "%s/%s", priv->trash_path, gfid_str); - op_ret = rename (real_path, tmp_path); - } else { - op_ret = rmdir (real_path); - } - op_errno = errno; - - if (op_ret == 0) { - posix_handle_unset (this, stbuf.ia_gfid, NULL); - } - - if (op_errno == EEXIST) - /* Solaris sets errno = EEXIST instead of ENOTEMPTY */ - op_errno = ENOTEMPTY; - - /* No need to log a common error as ENOTEMPTY */ - if (op_ret == -1 && op_errno != ENOTEMPTY) { - gf_log (this->name, GF_LOG_ERROR, - "rmdir of %s failed: %s", real_path, - strerror (op_errno)); - } - - if (op_ret == -1) { - gf_log (this->name, - (op_errno == ENOTEMPTY) ? GF_LOG_DEBUG : GF_LOG_ERROR, - "%s on %s failed", (flags) ? "rename" : "rmdir", - real_path); - goto out; - } - - op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "post-operation lstat on parent of %s failed: %s", - par_path, strerror (op_errno)); - goto out; - } - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (rmdir, frame, op_ret, op_errno, - &preparent, &postparent, NULL); - - return 0; -} - - -int -posix_symlink (call_frame_t *frame, xlator_t *this, - const char *linkname, loc_t *loc, mode_t umask, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - char * real_path = 0; - char * par_path = 0; - struct iatt stbuf = { 0, }; - struct posix_private *priv = NULL; - gid_t gid = 0; - char was_present = 1; - struct iatt preparent = {0,}; - struct iatt postparent = {0,}; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (linkname, out); - VALIDATE_OR_GOTO (loc, out); - - priv = this->private; - VALIDATE_OR_GOTO (priv, out); - - MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &stbuf); - - if ((op_ret == -1) && (errno == ENOENT)){ - was_present = 0; - } - - SET_FS_ID (frame->root->uid, gid); - - gid = frame->root->gid; - - op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "pre-operation lstat on parent %s failed: %s", - par_path, strerror (op_errno)); - goto out; - } - - if (preparent.ia_prot.sgid) { - gid = preparent.ia_gid; - } - - op_ret = symlink (linkname, real_path); - - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "symlink of %s --> %s failed: %s", - real_path, linkname, strerror (op_errno)); - goto out; - } - - op_ret = posix_gfid_set (this, real_path, loc, xdata); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, - "setting gfid on %s failed", real_path); - } - -#ifndef HAVE_SET_FSID - op_ret = lchown (real_path, frame->root->uid, gid); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "lchown failed on %s: %s", - real_path, strerror (op_errno)); - goto out; - } -#endif - - op_ret = posix_acl_xattr_set (this, real_path, xdata); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, - "setting ACLs on %s failed (%s)", real_path, - strerror (errno)); - } - - op_ret = posix_entry_create_xattr_set (this, real_path, xdata); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, - "setting xattrs on %s failed (%s)", real_path, - strerror (errno)); - } - - op_ret = posix_pstat (this, NULL, real_path, &stbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "lstat failed on %s: %s", - real_path, strerror (op_errno)); - goto out; - } - - op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "post-operation lstat on parent %s failed: %s", - par_path, strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (symlink, frame, op_ret, op_errno, - (loc)?loc->inode:NULL, &stbuf, &preparent, - &postparent, NULL); - - if ((op_ret == -1) && (!was_present)) { - unlink (real_path); - } - - return 0; -} - - -int -posix_rename (call_frame_t *frame, xlator_t *this, - loc_t *oldloc, loc_t *newloc, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - char *real_oldpath = NULL; - char *real_newpath = NULL; - char *par_oldpath = NULL; - char *par_newpath = NULL; - struct iatt stbuf = {0, }; - struct posix_private *priv = NULL; - char was_present = 1; - struct iatt preoldparent = {0, }; - struct iatt postoldparent = {0, }; - struct iatt prenewparent = {0, }; - struct iatt postnewparent = {0, }; - char olddirid[64]; - char newdirid[64]; - uuid_t victim = {0}; - int was_dir = 0; - int nlink = 0; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (oldloc, out); - VALIDATE_OR_GOTO (newloc, out); - - priv = this->private; - VALIDATE_OR_GOTO (priv, out); - - SET_FS_ID (frame->root->uid, frame->root->gid); - MAKE_ENTRY_HANDLE (real_oldpath, par_oldpath, this, oldloc, NULL); - MAKE_ENTRY_HANDLE (real_newpath, par_newpath, this, newloc, &stbuf); - - op_ret = posix_pstat (this, oldloc->pargfid, par_oldpath, &preoldparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "pre-operation lstat on parent %s failed: %s", - par_oldpath, strerror (op_errno)); - goto out; - } - - op_ret = posix_pstat (this, newloc->pargfid, par_newpath, &prenewparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "pre-operation lstat on parent of %s failed: %s", - par_newpath, strerror (op_errno)); - goto out; - } - - op_ret = posix_pstat (this, NULL, real_newpath, &stbuf); - if ((op_ret == -1) && (errno == ENOENT)){ - was_present = 0; - } else { - uuid_copy (victim, stbuf.ia_gfid); - if (IA_ISDIR (stbuf.ia_type)) - was_dir = 1; - nlink = stbuf.ia_nlink; - } - - if (was_present && IA_ISDIR(stbuf.ia_type) && !newloc->inode) { - gf_log (this->name, GF_LOG_WARNING, - "found directory at %s while expecting ENOENT", - real_newpath); - op_ret = -1; - op_errno = EEXIST; - goto out; - } - - if (was_present && IA_ISDIR(stbuf.ia_type) && - uuid_compare (newloc->inode->gfid, stbuf.ia_gfid)) { - gf_log (this->name, GF_LOG_WARNING, - "found directory %s at %s while renaming %s", - uuid_utoa_r (newloc->inode->gfid, olddirid), - real_newpath, - uuid_utoa_r (stbuf.ia_gfid, newdirid)); - op_ret = -1; - op_errno = EEXIST; - goto out; - } - - if (IA_ISDIR (oldloc->inode->ia_type)) { - posix_handle_unset (this, oldloc->inode->gfid, NULL); - } - - op_ret = sys_rename (real_oldpath, real_newpath); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, - (op_errno == ENOTEMPTY ? GF_LOG_DEBUG : GF_LOG_ERROR), - "rename of %s to %s failed: %s", - real_oldpath, real_newpath, strerror (op_errno)); - goto out; - } - - if (was_dir) - posix_handle_unset (this, victim, NULL); - - if (was_present && !was_dir && nlink == 1) - posix_handle_unset (this, victim, NULL); - - if (IA_ISDIR (oldloc->inode->ia_type)) { - posix_handle_soft (this, real_newpath, newloc, - oldloc->inode->gfid, NULL); - } - - op_ret = posix_pstat (this, NULL, real_newpath, &stbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "lstat on %s failed: %s", - real_newpath, strerror (op_errno)); - goto out; - } - - op_ret = posix_pstat (this, oldloc->pargfid, par_oldpath, &postoldparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "post-operation lstat on parent %s failed: %s", - par_oldpath, strerror (op_errno)); - goto out; - } - - op_ret = posix_pstat (this, newloc->pargfid, par_newpath, &postnewparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "post-operation lstat on parent %s failed: %s", - par_newpath, strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (rename, frame, op_ret, op_errno, &stbuf, - &preoldparent, &postoldparent, - &prenewparent, &postnewparent, NULL); - - if ((op_ret == -1) && !was_present) { - unlink (real_newpath); - } - - return 0; -} - - -int -posix_link (call_frame_t *frame, xlator_t *this, - loc_t *oldloc, loc_t *newloc, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - char *real_oldpath = 0; - char *real_newpath = 0; - char *par_newpath = 0; - struct iatt stbuf = {0, }; - struct posix_private *priv = NULL; - char was_present = 1; - struct iatt preparent = {0,}; - struct iatt postparent = {0,}; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (oldloc, out); - VALIDATE_OR_GOTO (newloc, out); - - priv = this->private; - VALIDATE_OR_GOTO (priv, out); - - SET_FS_ID (frame->root->uid, frame->root->gid); - MAKE_INODE_HANDLE (real_oldpath, this, oldloc, &stbuf); - - MAKE_ENTRY_HANDLE (real_newpath, par_newpath, this, newloc, &stbuf); - if ((op_ret == -1) && (errno == ENOENT)) { - was_present = 0; - } - - op_ret = posix_pstat (this, newloc->pargfid, par_newpath, &preparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, "lstat failed: %s: %s", - par_newpath, strerror (op_errno)); - goto out; - } - -#ifdef HAVE_LINKAT - /* - * On most systems (Linux being the notable exception), link(2) - * first resolves symlinks. If the target is a directory or - * is nonexistent, it will fail. linkat(2) operates on the - * symlink instead of its target when the AT_SYMLINK_FOLLOW - * flag is not supplied. - */ - op_ret = linkat (AT_FDCWD, real_oldpath, AT_FDCWD, real_newpath, 0); -#else - op_ret = link (real_oldpath, real_newpath); -#endif - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "link %s to %s failed: %s", - real_oldpath, real_newpath, strerror (op_errno)); - goto out; - } - - op_ret = posix_pstat (this, NULL, real_newpath, &stbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "lstat on %s failed: %s", - real_newpath, strerror (op_errno)); - goto out; - } - - op_ret = posix_pstat (this, newloc->pargfid, par_newpath, &postparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, "lstat failed: %s: %s", - par_newpath, strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (link, frame, op_ret, op_errno, - (oldloc)?oldloc->inode:NULL, &stbuf, &preparent, - &postparent, NULL); - - if ((op_ret == -1) && (!was_present)) { - unlink (real_newpath); - } - - return 0; -} - - -int32_t -posix_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset, - dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - char *real_path = 0; - struct posix_private *priv = NULL; - struct iatt prebuf = {0,}; - struct iatt postbuf = {0,}; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - - priv = this->private; - VALIDATE_OR_GOTO (priv, out); - - SET_FS_ID (frame->root->uid, frame->root->gid); - - MAKE_INODE_HANDLE (real_path, this, loc, &prebuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "pre-operation lstat on %s failed: %s", - real_path, strerror (op_errno)); - goto out; - } - - op_ret = truncate (real_path, offset); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "truncate on %s failed: %s", - real_path, strerror (op_errno)); - goto out; - } - - op_ret = posix_pstat (this, loc->gfid, real_path, &postbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, "lstat on %s failed: %s", - real_path, strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (truncate, frame, op_ret, op_errno, - &prebuf, &postbuf, NULL); - - return 0; -} - - -int -posix_create (call_frame_t *frame, xlator_t *this, - loc_t *loc, int32_t flags, mode_t mode, - mode_t umask, fd_t *fd, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - int32_t _fd = -1; - int _flags = 0; - char * real_path = NULL; - char * par_path = NULL; - struct iatt stbuf = {0, }; - struct posix_fd * pfd = NULL; - struct posix_private * priv = NULL; - char was_present = 1; - - gid_t gid = 0; - struct iatt preparent = {0,}; - struct iatt postparent = {0,}; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (this->private, out); - VALIDATE_OR_GOTO (loc, out); - VALIDATE_OR_GOTO (fd, out); - - priv = this->private; - VALIDATE_OR_GOTO (priv, out); - - MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &stbuf); - - gid = frame->root->gid; - - SET_FS_ID (frame->root->uid, gid); - - op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "pre-operation lstat on parent %s failed: %s", - par_path, strerror (op_errno)); - goto out; - } - - if (preparent.ia_prot.sgid) { - gid = preparent.ia_gid; - } - - if (!flags) { - _flags = O_CREAT | O_RDWR | O_EXCL; - } - else { - _flags = flags | O_CREAT; - } - - op_ret = posix_pstat (this, NULL, real_path, &stbuf); - if ((op_ret == -1) && (errno == ENOENT)) { - was_present = 0; - } - - if (priv->o_direct) - _flags |= O_DIRECT; - - _fd = open (real_path, _flags, mode); - - if (_fd == -1) { - op_errno = errno; - op_ret = -1; - gf_log (this->name, GF_LOG_ERROR, - "open on %s failed: %s", real_path, - strerror (op_errno)); - goto out; - } - - if (was_present) - goto fill_stat; - - op_ret = posix_gfid_set (this, real_path, loc, xdata); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, - "setting gfid on %s failed", real_path); - } - -#ifndef HAVE_SET_FSID - op_ret = chown (real_path, frame->root->uid, gid); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "chown on %s failed: %s", - real_path, strerror (op_errno)); - } -#endif - - op_ret = posix_acl_xattr_set (this, real_path, xdata); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, - "setting ACLs on %s failed (%s)", real_path, - strerror (errno)); - } - - op_ret = posix_entry_create_xattr_set (this, real_path, xdata); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, - "setting xattrs on %s failed (%s)", real_path, - strerror (errno)); - } - -fill_stat: - op_ret = posix_fdstat (this, _fd, &stbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "fstat on %d failed: %s", _fd, strerror (op_errno)); - goto out; - } - - op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "post-operation lstat on parent %s failed: %s", - par_path, strerror (op_errno)); - goto out; - } - - op_ret = -1; - pfd = GF_CALLOC (1, sizeof (*pfd), gf_posix_mt_posix_fd); - if (!pfd) { - op_errno = errno; - goto out; - } - - pfd->flags = flags; - pfd->fd = _fd; - - op_ret = fd_ctx_set (fd, this, (uint64_t)(long)pfd); - if (op_ret) - gf_log (this->name, GF_LOG_WARNING, - "failed to set the fd context path=%s fd=%p", - real_path, fd); - - LOCK (&priv->lock); - { - priv->nr_files++; - } - UNLOCK (&priv->lock); - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - if ((-1 == op_ret) && (_fd != -1)) { - close (_fd); - - if (!was_present) { - unlink (real_path); - } - } - - STACK_UNWIND_STRICT (create, frame, op_ret, op_errno, - fd, (loc)?loc->inode:NULL, &stbuf, &preparent, - &postparent, xdata); - - return 0; -} - -int32_t -posix_open (call_frame_t *frame, xlator_t *this, - loc_t *loc, int32_t flags, fd_t *fd, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - char *real_path = NULL; - int32_t _fd = -1; - struct posix_fd *pfd = NULL; - struct posix_private *priv = NULL; - struct iatt stbuf = {0, }; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (this->private, out); - VALIDATE_OR_GOTO (loc, out); - VALIDATE_OR_GOTO (fd, out); - - priv = this->private; - VALIDATE_OR_GOTO (priv, out); - - MAKE_INODE_HANDLE (real_path, this, loc, &stbuf); - - op_ret = -1; - SET_FS_ID (frame->root->uid, frame->root->gid); - - if (priv->o_direct) - flags |= O_DIRECT; - - _fd = open (real_path, flags, 0); - if (_fd == -1) { - op_ret = -1; - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "open on %s: %s", real_path, strerror (op_errno)); - goto out; - } - - pfd = GF_CALLOC (1, sizeof (*pfd), gf_posix_mt_posix_fd); - if (!pfd) { - op_errno = errno; - goto out; - } - - pfd->flags = flags; - pfd->fd = _fd; - - op_ret = fd_ctx_set (fd, this, (uint64_t)(long)pfd); - if (op_ret) - gf_log (this->name, GF_LOG_WARNING, - "failed to set the fd context path=%s fd=%p", - real_path, fd); - - LOCK (&priv->lock); - { - priv->nr_files++; - } - UNLOCK (&priv->lock); - - op_ret = 0; - -out: - if (op_ret == -1) { - if (_fd != -1) { - close (_fd); - } - } - - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (open, frame, op_ret, op_errno, fd, NULL); - - return 0; -} - -int -posix_readv (call_frame_t *frame, xlator_t *this, - fd_t *fd, size_t size, off_t offset, uint32_t flags, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - int _fd = -1; - struct posix_private * priv = NULL; - struct iobuf * iobuf = NULL; - struct iobref * iobref = NULL; - struct iovec vec = {0,}; - struct posix_fd * pfd = NULL; - struct iatt stbuf = {0,}; - int ret = -1; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - VALIDATE_OR_GOTO (this->private, out); - - priv = this->private; - VALIDATE_OR_GOTO (priv, out); - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - op_errno = -ret; - gf_log (this->name, GF_LOG_WARNING, - "pfd is NULL from fd=%p", fd); - goto out; - } - - if (!size) { - op_errno = EINVAL; - gf_log (this->name, GF_LOG_WARNING, "size=%"GF_PRI_SIZET, size); - goto out; - } - - iobuf = iobuf_get2 (this->ctx->iobuf_pool, size); - if (!iobuf) { - op_errno = ENOMEM; - goto out; - } - - _fd = pfd->fd; - op_ret = pread (_fd, iobuf->ptr, size, offset); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "read failed on fd=%p: %s", fd, - strerror (op_errno)); - goto out; - } - - LOCK (&priv->lock); - { - priv->read_value += op_ret; - } - UNLOCK (&priv->lock); - - vec.iov_base = iobuf->ptr; - vec.iov_len = op_ret; - - iobref = iobref_new (); - - iobref_add (iobref, iobuf); - - /* - * readv successful, and we need to get the stat of the file - * we read from - */ - - op_ret = posix_fdstat (this, _fd, &stbuf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "fstat failed on fd=%p: %s", fd, - strerror (op_errno)); - goto out; - } - - /* Hack to notify higher layers of EOF. */ - if (stbuf.ia_size == 0) - op_errno = ENOENT; - else if ((offset + vec.iov_len) == stbuf.ia_size) - op_errno = ENOENT; - else if (offset > stbuf.ia_size) - op_errno = ENOENT; - - op_ret = vec.iov_len; -out: - - STACK_UNWIND_STRICT (readv, frame, op_ret, op_errno, - &vec, 1, &stbuf, iobref, NULL); - - if (iobref) - iobref_unref (iobref); - if (iobuf) - iobuf_unref (iobuf); - - return 0; -} - - -int32_t -__posix_pwritev (int fd, struct iovec *vector, int count, off_t offset) -{ - int32_t op_ret = 0; - int idx = 0; - int retval = 0; - off_t internal_off = 0; - - if (!vector) - return -EFAULT; - - internal_off = offset; - for (idx = 0; idx < count; idx++) { - retval = pwrite (fd, vector[idx].iov_base, vector[idx].iov_len, - internal_off); - if (retval == -1) { - op_ret = -errno; - goto err; - } - op_ret += retval; - internal_off += retval; - } - -err: - return op_ret; -} - -char* -_page_aligned_alloc (size_t size, char **aligned_buf) -{ - char *alloc_buf = NULL; - char *buf = NULL; - - alloc_buf = GF_CALLOC (1, (size + ALIGN_SIZE), gf_posix_mt_char); - if (!alloc_buf) - goto out; - /* page aligned buffer */ - buf = GF_ALIGN_BUF (alloc_buf, ALIGN_SIZE); - *aligned_buf = buf; -out: - return alloc_buf; -} - -int32_t -__posix_writev (int fd, struct iovec *vector, int count, off_t startoff, - int odirect) -{ - int32_t op_ret = 0; - int idx = 0; - int max_buf_size = 0; - int retval = 0; - char *buf = NULL; - char *alloc_buf = NULL; - off_t internal_off = 0; - - /* Check for the O_DIRECT flag during open() */ - if (!odirect) - return __posix_pwritev (fd, vector, count, startoff); - - for (idx = 0; idx < count; idx++) { - if (max_buf_size < vector[idx].iov_len) - max_buf_size = vector[idx].iov_len; - } - - alloc_buf = _page_aligned_alloc (max_buf_size, &buf); - if (!alloc_buf) { - op_ret = -errno; - goto err; - } - - internal_off = startoff; - for (idx = 0; idx < count; idx++) { - memcpy (buf, vector[idx].iov_base, vector[idx].iov_len); - - /* not sure whether writev works on O_DIRECT'd fd */ - retval = pwrite (fd, buf, vector[idx].iov_len, internal_off); - if (retval == -1) { - op_ret = -errno; - goto err; - } - - op_ret += retval; - internal_off += retval; - } - -err: - GF_FREE (alloc_buf); - - return op_ret; -} - -dict_t* -_fill_writev_xdata (fd_t *fd, dict_t *xdata, xlator_t *this, int is_append) -{ - dict_t *rsp_xdata = NULL; - int32_t ret = 0; - inode_t *inode = NULL; - - if (fd) - inode = fd->inode; - - if (!fd || !fd->inode || uuid_is_null (fd->inode->gfid)) { - gf_log_callingfn (this->name, GF_LOG_ERROR, "Invalid Args: " - "fd: %p inode: %p gfid:%s", fd, inode?inode:0, - inode?uuid_utoa(inode->gfid):"N/A"); - goto out; - } - - if (!xdata || !dict_get (xdata, GLUSTERFS_OPEN_FD_COUNT)) - goto out; - - rsp_xdata = dict_new(); - if (!rsp_xdata) - goto out; - - ret = dict_set_uint32 (rsp_xdata, GLUSTERFS_OPEN_FD_COUNT, - fd->inode->fd_count); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, "%s: Failed to set " - "dictionary value for %s", uuid_utoa (fd->inode->gfid), - GLUSTERFS_OPEN_FD_COUNT); - } - - ret = dict_set_uint32 (rsp_xdata, GLUSTERFS_WRITE_IS_APPEND, - is_append); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, "%s: Failed to set " - "dictionary value for %s", uuid_utoa (fd->inode->gfid), - GLUSTERFS_WRITE_IS_APPEND); - } -out: - return rsp_xdata; -} - -int32_t -posix_writev (call_frame_t *frame, xlator_t *this, fd_t *fd, - struct iovec *vector, int32_t count, off_t offset, - uint32_t flags, struct iobref *iobref, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - int _fd = -1; - struct posix_private * priv = NULL; - struct posix_fd * pfd = NULL; - struct iatt preop = {0,}; - struct iatt postop = {0,}; - int ret = -1; - dict_t *rsp_xdata = NULL; - int is_append = 0; - gf_boolean_t locked = _gf_false; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - VALIDATE_OR_GOTO (vector, out); - VALIDATE_OR_GOTO (this->private, out); - - priv = this->private; - - VALIDATE_OR_GOTO (priv, out); - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, - "pfd is NULL from fd=%p", fd); - op_errno = -ret; - goto out; - } - - _fd = pfd->fd; - - if (xdata && dict_get (xdata, GLUSTERFS_WRITE_IS_APPEND)) { - /* The write_is_append check and write must happen - atomically. Else another write can overtake this - write after the check and get written earlier. - - So lock before preop-stat and unlock after write. - */ - locked = _gf_true; - LOCK(&fd->inode->lock); - } - - op_ret = posix_fdstat (this, _fd, &preop); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "pre-operation fstat failed on fd=%p: %s", fd, - strerror (op_errno)); - goto out; - } - - if (locked) { - if (preop.ia_size == offset || (fd->flags & O_APPEND)) - is_append = 1; - } - - op_ret = __posix_writev (_fd, vector, count, offset, - (pfd->flags & O_DIRECT)); - - if (locked) { - UNLOCK (&fd->inode->lock); - locked = _gf_false; - } - - if (op_ret < 0) { - op_errno = -op_ret; - op_ret = -1; - gf_log (this->name, GF_LOG_ERROR, "write failed: offset %"PRIu64 - ", %s", offset, strerror (op_errno)); - goto out; - } - - LOCK (&priv->lock); - { - priv->write_value += op_ret; - } - UNLOCK (&priv->lock); - - if (op_ret >= 0) { - rsp_xdata = _fill_writev_xdata (fd, xdata, this, is_append); - /* wiretv successful, we also need to get the stat of - * the file we wrote to - */ - - if (flags & (O_SYNC|O_DSYNC)) { - ret = fsync (_fd); - if (ret) { - gf_log (this->name, GF_LOG_ERROR, - "fsync() in writev on fd %d failed: %s", - _fd, strerror (errno)); - op_ret = -1; - op_errno = errno; - goto out; - } - } - - ret = posix_fdstat (this, _fd, &postop); - if (ret == -1) { - op_ret = -1; - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "post-operation fstat failed on fd=%p: %s", - fd, strerror (op_errno)); - goto out; - } - } - -out: - - if (locked) { - UNLOCK (&fd->inode->lock); - locked = _gf_false; - } - - STACK_UNWIND_STRICT (writev, frame, op_ret, op_errno, &preop, &postop, - rsp_xdata); - - if (rsp_xdata) - dict_unref (rsp_xdata); - return 0; -} - - -int32_t -posix_statfs (call_frame_t *frame, xlator_t *this, - loc_t *loc, dict_t *xdata) -{ - char * real_path = NULL; - int32_t op_ret = -1; - int32_t op_errno = 0; - struct statvfs buf = {0, }; - struct posix_private * priv = NULL; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - VALIDATE_OR_GOTO (this->private, out); - - MAKE_INODE_HANDLE (real_path, this, loc, NULL); - - priv = this->private; - - op_ret = statvfs (real_path, &buf); - - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "statvfs failed on %s: %s", - real_path, strerror (op_errno)); - goto out; - } - - if (!priv->export_statfs) { - buf.f_blocks = 0; - buf.f_bfree = 0; - buf.f_bavail = 0; - buf.f_files = 0; - buf.f_ffree = 0; - buf.f_favail = 0; - } - - op_ret = 0; - -out: - STACK_UNWIND_STRICT (statfs, frame, op_ret, op_errno, &buf, NULL); - return 0; -} - - -int32_t -posix_flush (call_frame_t *frame, xlator_t *this, - fd_t *fd, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - int ret = -1; - struct posix_fd *pfd = NULL; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - op_errno = -ret; - gf_log (this->name, GF_LOG_WARNING, - "pfd is NULL on fd=%p", fd); - goto out; - } - - op_ret = 0; - -out: - STACK_UNWIND_STRICT (flush, frame, op_ret, op_errno, NULL); - - return 0; -} - - -int32_t -posix_release (xlator_t *this, fd_t *fd) -{ - struct posix_private * priv = NULL; - struct posix_fd * pfd = NULL; - int ret = -1; - uint64_t tmp_pfd = 0; - - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - - priv = this->private; - - ret = fd_ctx_del (fd, this, &tmp_pfd); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, - "pfd is NULL from fd=%p", fd); - goto out; - } - pfd = (struct posix_fd *)(long)tmp_pfd; - - if (pfd->dir) { - gf_log (this->name, GF_LOG_WARNING, - "pfd->dir is %p (not NULL) for file fd=%p", - pfd->dir, fd); - } - - pthread_mutex_lock (&priv->janitor_lock); - { - INIT_LIST_HEAD (&pfd->list); - list_add_tail (&pfd->list, &priv->janitor_fds); - pthread_cond_signal (&priv->janitor_cond); - } - pthread_mutex_unlock (&priv->janitor_lock); - - LOCK (&priv->lock); - { - priv->nr_files--; - } - UNLOCK (&priv->lock); - -out: - return 0; -} - - -int -posix_batch_fsync (call_frame_t *frame, xlator_t *this, - fd_t *fd, int datasync, dict_t *xdata) -{ - call_stub_t *stub = NULL; - struct posix_private *priv = NULL; - - priv = this->private; - - stub = fop_fsync_stub (frame, default_fsync, fd, datasync, xdata); - if (!stub) { - STACK_UNWIND_STRICT (fsync, frame, -1, ENOMEM, 0, 0, 0); - return 0; - } - - pthread_mutex_lock (&priv->fsync_mutex); - { - list_add_tail (&stub->list, &priv->fsyncs); - priv->fsync_queue_count++; - pthread_cond_signal (&priv->fsync_cond); - } - pthread_mutex_unlock (&priv->fsync_mutex); - - return 0; -} - - -int32_t -posix_fsync (call_frame_t *frame, xlator_t *this, - fd_t *fd, int32_t datasync, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - int _fd = -1; - struct posix_fd * pfd = NULL; - int ret = -1; - struct iatt preop = {0,}; - struct iatt postop = {0,}; - struct posix_private *priv = NULL; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - - SET_FS_ID (frame->root->uid, frame->root->gid); - -#ifdef GF_DARWIN_HOST_OS - /* Always return success in case of fsync in MAC OS X */ - op_ret = 0; - goto out; -#endif - - priv = this->private; - if (priv->batch_fsync_mode && xdata && dict_get (xdata, "batch-fsync")) { - posix_batch_fsync (frame, this, fd, datasync, xdata); - return 0; - } - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - op_errno = -ret; - gf_log (this->name, GF_LOG_WARNING, - "pfd not found in fd's ctx"); - goto out; - } - - _fd = pfd->fd; - - op_ret = posix_fdstat (this, _fd, &preop); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_WARNING, - "pre-operation fstat failed on fd=%p: %s", fd, - strerror (op_errno)); - goto out; - } - - if (datasync) { - ; -#ifdef HAVE_FDATASYNC - op_ret = fdatasync (_fd); - if (op_ret == -1) { - gf_log (this->name, GF_LOG_ERROR, - "fdatasync on fd=%p failed: %s", - fd, strerror (errno)); - } -#endif - } else { - op_ret = fsync (_fd); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "fsync on fd=%p failed: %s", - fd, strerror (op_errno)); - goto out; - } - } - - op_ret = posix_fdstat (this, _fd, &postop); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_WARNING, - "post-operation fstat failed on fd=%p: %s", fd, - strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (fsync, frame, op_ret, op_errno, &preop, &postop, - NULL); - - return 0; -} - -static int gf_posix_xattr_enotsup_log; -static int -_handle_setxattr_keyvalue_pair (dict_t *d, char *k, data_t *v, - void *tmp) -{ - posix_xattr_filler_t *filler = NULL; - - filler = tmp; - - return posix_handle_pair (filler->this, filler->real_path, k, v, - filler->flags); -} - -int32_t -posix_setxattr (call_frame_t *frame, xlator_t *this, - loc_t *loc, dict_t *dict, int flags, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - char * real_path = NULL; - - posix_xattr_filler_t filler = {0,}; - - DECLARE_OLD_FS_ID_VAR; - SET_FS_ID (frame->root->uid, frame->root->gid); - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - VALIDATE_OR_GOTO (dict, out); - - MAKE_INODE_HANDLE (real_path, this, loc, NULL); - - op_ret = -1; - dict_del (dict, GFID_XATTR_KEY); - - filler.real_path = real_path; - filler.this = this; - filler.flags = flags; - op_ret = dict_foreach (dict, _handle_setxattr_keyvalue_pair, - &filler); - if (op_ret < 0) - op_errno = -op_ret; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (setxattr, frame, op_ret, op_errno, NULL); - - return 0; -} - - -int -posix_xattr_get_real_filename (call_frame_t *frame, xlator_t *this, loc_t *loc, - const char *key, dict_t *dict, dict_t *xdata) -{ - char *real_path = NULL; - struct dirent *dirent = NULL; - DIR *fd = NULL; - const char *fname = NULL; - char *found = NULL; - int ret = -1; - int op_ret = -1; - - MAKE_INODE_HANDLE (real_path, this, loc, NULL); - - fd = opendir (real_path); - if (!fd) - return -errno; - - fname = key + strlen (GF_XATTR_GET_REAL_FILENAME_KEY); - - while ((dirent = readdir (fd))) { - if (strcasecmp (dirent->d_name, fname) == 0) { - found = gf_strdup (dirent->d_name); - if (!found) { - closedir (fd); - return -ENOMEM; - } - break; - } - } - - closedir (fd); - - if (!found) - return -ENOENT; - - ret = dict_set_dynstr (dict, (char *)key, found); - if (ret) { - GF_FREE (found); - return -ENOMEM; - } - ret = strlen (found) + 1; - - return ret; -} - -/** - * posix_getxattr - this function returns a dictionary with all the - * key:value pair present as xattr. used for - * both 'listxattr' and 'getxattr'. - */ -int32_t -posix_getxattr (call_frame_t *frame, xlator_t *this, - loc_t *loc, const char *name, dict_t *xdata) -{ - struct posix_private *priv = NULL; - int32_t op_ret = -1; - int32_t op_errno = 0; - int32_t list_offset = 0; - ssize_t size = 0; - size_t remaining_size = 0; - char key[4096] = {0,}; - char host_buf[1024] = {0,}; - char *value = NULL; - char *list = NULL; - char *real_path = NULL; - dict_t *dict = NULL; - char *file_contents = NULL; - int ret = -1; - char *path = NULL; - char *rpath = NULL; - char *dyn_rpath = NULL; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - - SET_FS_ID (frame->root->uid, frame->root->gid); - MAKE_INODE_HANDLE (real_path, this, loc, NULL); - - op_ret = -1; - priv = this->private; - - if (loc->inode && IA_ISDIR(loc->inode->ia_type) && name && - ZR_FILE_CONTENT_REQUEST(name)) { - ret = posix_get_file_contents (this, loc->gfid, &name[15], - &file_contents); - if (ret < 0) { - op_errno = -ret; - gf_log (this->name, GF_LOG_ERROR, - "getting file contents failed: %s", - strerror (op_errno)); - goto out; - } - } - - dict = dict_new (); - if (!dict) { - op_errno = ENOMEM; - goto out; - } - - if (loc->inode && name && - (strncmp (name, GF_XATTR_GET_REAL_FILENAME_KEY, - strlen (GF_XATTR_GET_REAL_FILENAME_KEY)) == 0)) { - ret = posix_xattr_get_real_filename (frame, this, loc, - name, dict, xdata); - if (ret < 0) { - op_ret = -1; - op_errno = -ret; - gf_log (this->name, GF_LOG_WARNING, - "Failed to get rea filename (%s, %s): %s", - loc->path, name, strerror (op_errno)); - goto out; - } - - size = ret; - goto done; - } - - if (loc->inode && name && !strcmp (name, GLUSTERFS_OPEN_FD_COUNT)) { - if (!list_empty (&loc->inode->fd_list)) { - ret = dict_set_uint32 (dict, (char *)name, 1); - if (ret < 0) - gf_log (this->name, GF_LOG_WARNING, - "Failed to set dictionary value for %s", - name); - } else { - ret = dict_set_uint32 (dict, (char *)name, 0); - if (ret < 0) - gf_log (this->name, GF_LOG_WARNING, - "Failed to set dictionary value for %s", - name); - } - goto done; - } - if (loc->inode && name && - (strcmp (name, GF_XATTR_PATHINFO_KEY) == 0)) { - if (LOC_HAS_ABSPATH (loc)) - MAKE_REAL_PATH (rpath, this, loc->path); - else - rpath = real_path; - - (void) snprintf (host_buf, 1024, - "<POSIX(%s):%s:%s>", priv->base_path, - ((priv->node_uuid_pathinfo - && !uuid_is_null(priv->glusterd_uuid)) - ? uuid_utoa (priv->glusterd_uuid) - : priv->hostname), - rpath); - - dyn_rpath = gf_strdup (host_buf); - if (!dyn_rpath) { - ret = -1; - goto done; - } - size = strlen (dyn_rpath) + 1; - ret = dict_set_dynstr (dict, GF_XATTR_PATHINFO_KEY, - dyn_rpath); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, - "could not set value (%s) in dictionary", - dyn_rpath); - GF_FREE (dyn_rpath); - } - - goto done; - } - - if (loc->inode && name && - (strcmp (name, GF_XATTR_NODE_UUID_KEY) == 0) - && !uuid_is_null (priv->glusterd_uuid)) { - (void) snprintf (host_buf, 1024, "%s", - uuid_utoa (priv->glusterd_uuid)); - - dyn_rpath = gf_strdup (host_buf); - if (!dyn_rpath) { - ret = -1; - goto done; - } - - size = strlen (dyn_rpath) + 1; - ret = dict_set_dynstr (dict, GF_XATTR_NODE_UUID_KEY, - dyn_rpath); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, - "could not set value (%s) in dictionary", - dyn_rpath); - GF_FREE (dyn_rpath); - } - goto done; - } - - if (loc->inode && name && - (strcmp (name, GFID_TO_PATH_KEY) == 0)) { - ret = inode_path (loc->inode, NULL, &path); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, "%s: could not get " - "inode path", uuid_utoa (loc->inode->gfid)); - goto done; - } - - ret = dict_set_dynstr (dict, GFID_TO_PATH_KEY, path); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, - "could not set value (%s) in dictionary", - host_buf); - GF_FREE (path); - } - goto done; - } - - if (name) { - strcpy (key, name); - - size = sys_lgetxattr (real_path, key, NULL, 0); - if (size <= 0) { - op_errno = errno; - if ((op_errno == ENOTSUP) || (op_errno == ENOSYS)) { - GF_LOG_OCCASIONALLY (gf_posix_xattr_enotsup_log, - this->name, GF_LOG_WARNING, - "Extended attributes not " - "supported (try remounting" - " brick with 'user_xattr' " - "flag)"); - } else if (op_errno == ENOATTR) { - gf_log (this->name, GF_LOG_DEBUG, - "No such attribute:%s for file %s", - key, real_path); - } else { - gf_log (this->name, GF_LOG_ERROR, - "getxattr failed on %s: %s (%s)", - real_path, key, strerror (op_errno)); - } - - goto done; - } - value = GF_CALLOC (size + 1, sizeof(char), gf_posix_mt_char); - if (!value) { - op_ret = -1; - goto out; - } - size = sys_lgetxattr (real_path, key, value, size); - if (size == -1) { - op_ret = -1; - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, "getxattr failed on " - "%s: key = %s (%s)", real_path, key, - strerror (op_errno)); - GF_FREE (value); - goto out; - } - value [size] = '\0'; - op_ret = dict_set_dynptr (dict, key, value, size); - if (op_ret < 0) { - gf_log (this->name, GF_LOG_ERROR, "dict set operation " - "on %s for the key %s failed.", real_path, key); - GF_FREE (value); - goto out; - } - - goto done; - } - - size = sys_llistxattr (real_path, NULL, 0); - if (size == -1) { - op_errno = errno; - if ((errno == ENOTSUP) || (errno == ENOSYS)) { - GF_LOG_OCCASIONALLY (gf_posix_xattr_enotsup_log, - this->name, GF_LOG_WARNING, - "Extended attributes not " - "supported (try remounting" - " brick with 'user_xattr' " - "flag)"); - } - else { - gf_log (this->name, GF_LOG_ERROR, - "listxattr failed on %s: %s", - real_path, strerror (op_errno)); - } - goto out; - } - - if (size == 0) - goto done; - - list = alloca (size + 1); - if (!list) { - op_errno = errno; - goto out; - } - - size = sys_llistxattr (real_path, list, size); - - remaining_size = size; - list_offset = 0; - while (remaining_size > 0) { - if (*(list + list_offset) == '\0') - break; - - strcpy (key, list + list_offset); - size = sys_lgetxattr (real_path, key, NULL, 0); - if (size == -1) { - op_ret = -1; - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, "getxattr failed on " - "%s: key = %s (%s)", real_path, key, - strerror (op_errno)); - break; - } - - value = GF_CALLOC (size + 1, sizeof(char), - gf_posix_mt_char); - if (!value) { - op_errno = errno; - goto out; - } - - size = sys_lgetxattr (real_path, key, value, size); - if (size == -1) { - op_ret = -1; - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, "getxattr failed on " - "%s: key = %s (%s)", real_path, key, - strerror (op_errno)); - GF_FREE (value); - break; - } - - value [size] = '\0'; - op_ret = dict_set_dynptr (dict, key, value, size); - if (op_ret < 0) { - gf_log (this->name, GF_LOG_ERROR, "dict set operation " - "on %s for the key %s failed.", real_path, key); - GF_FREE (value); - goto out; - } - - remaining_size -= strlen (key) + 1; - list_offset += strlen (key) + 1; - - } /* while (remaining_size > 0) */ - -done: - op_ret = size; - - if (dict) { - dict_del (dict, GFID_XATTR_KEY); - } - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (getxattr, frame, op_ret, op_errno, dict, NULL); - - if (dict) - dict_unref (dict); - - return 0; -} - - -int32_t -posix_fgetxattr (call_frame_t *frame, xlator_t *this, - fd_t *fd, const char *name, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = ENOENT; - struct posix_fd * pfd = NULL; - int _fd = -1; - int32_t list_offset = 0; - ssize_t size = 0; - size_t remaining_size = 0; - char key[4096] = {0,}; - char * value = NULL; - char * list = NULL; - dict_t * dict = NULL; - int ret = -1; - - DECLARE_OLD_FS_ID_VAR; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - - SET_FS_ID (frame->root->uid, frame->root->gid); - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - op_errno = -ret; - gf_log (this->name, GF_LOG_WARNING, - "pfd is NULL from fd=%p", fd); - goto out; - } - - _fd = pfd->fd; - - /* Get the total size */ - dict = get_new_dict (); - if (!dict) { - goto out; - } - - if (name && !strcmp (name, GLUSTERFS_OPEN_FD_COUNT)) { - ret = dict_set_uint32 (dict, (char *)name, 1); - if (ret < 0) - gf_log (this->name, GF_LOG_WARNING, - "Failed to set dictionary value for %s", - name); - goto done; - } - - if (name) { - strcpy (key, name); - - size = sys_fgetxattr (_fd, key, NULL, 0); - if (size <= 0) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, "fgetxattr failed on " - "key %s (%s)", key, strerror (op_errno)); - goto done; - } - - value = GF_CALLOC (size + 1, sizeof(char), gf_posix_mt_char); - if (!value) { - op_ret = -1; - goto out; - } - size = sys_fgetxattr (_fd, key, value, size); - if (size == -1) { - op_ret = -1; - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, "fgetxattr failed on " - "fd %p for the key %s (%s)", fd, key, - strerror (op_errno)); - GF_FREE (value); - goto out; - } - value [size] = '\0'; - op_ret = dict_set_dynptr (dict, key, value, size); - if (op_ret < 0) { - gf_log (this->name, GF_LOG_ERROR, "dict set operation " - "on key %s failed", key); - GF_FREE (value); - goto out; - } - goto done; - } - - size = sys_flistxattr (_fd, NULL, 0); - if (size == -1) { - op_errno = errno; - if ((errno == ENOTSUP) || (errno == ENOSYS)) { - GF_LOG_OCCASIONALLY (gf_posix_xattr_enotsup_log, - this->name, GF_LOG_WARNING, - "Extended attributes not " - "supported (try remounting " - "brick with 'user_xattr' flag)"); - } - else { - gf_log (this->name, GF_LOG_ERROR, - "listxattr failed on %p: %s", - fd, strerror (op_errno)); - } - goto out; - } - - if (size == 0) - goto done; - - list = alloca (size + 1); - if (!list) { - op_errno = errno; - goto out; - } - - size = sys_flistxattr (_fd, list, size); - - remaining_size = size; - list_offset = 0; - while (remaining_size > 0) { - if(*(list + list_offset) == '\0') - break; - - strcpy (key, list + list_offset); - size = sys_fgetxattr (_fd, key, NULL, 0); - if (size == -1) { - op_ret = -1; - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, "fgetxattr failed on " - "fd %p for the key %s (%s)", fd, key, - strerror (op_errno)); - break; - } - - value = GF_CALLOC (size + 1, sizeof(char), - gf_posix_mt_char); - if (!value) { - op_ret = -1; - op_errno = errno; - goto out; - } - - size = sys_fgetxattr (_fd, key, value, size); - if (size == -1) { - op_ret = -1; - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, "fgetxattr failed on " - "the fd %p for the key %s (%s)", fd, key, - strerror (op_errno)); - GF_FREE (value); - break; - } - - value [size] = '\0'; - op_ret = dict_set_dynptr (dict, key, value, size); - if (op_ret) { - gf_log (this->name, GF_LOG_ERROR, "dict set operation " - "failed on key %s", key); - GF_FREE (value); - goto out; - } - remaining_size -= strlen (key) + 1; - list_offset += strlen (key) + 1; - - } /* while (remaining_size > 0) */ - -done: - op_ret = size; - - if (dict) { - dict_del (dict, GFID_XATTR_KEY); - dict_ref (dict); - } - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (fgetxattr, frame, op_ret, op_errno, dict, NULL); - - if (dict) - dict_unref (dict); - - return 0; -} - -static int -_handle_fsetxattr_keyvalue_pair (dict_t *d, char *k, data_t *v, - void *tmp) -{ - posix_xattr_filler_t *filler = NULL; - - filler = tmp; - - return posix_fhandle_pair (filler->this, filler->fd, k, v, - filler->flags); -} - -int32_t -posix_fsetxattr (call_frame_t *frame, xlator_t *this, - fd_t *fd, dict_t *dict, int flags, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - struct posix_fd * pfd = NULL; - int _fd = -1; - int ret = -1; - - posix_xattr_filler_t filler = {0,}; - - DECLARE_OLD_FS_ID_VAR; - SET_FS_ID (frame->root->uid, frame->root->gid); - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - VALIDATE_OR_GOTO (dict, out); - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - op_errno = -ret; - gf_log (this->name, GF_LOG_WARNING, - "pfd is NULL from fd=%p", fd); - goto out; - } - _fd = pfd->fd; - - dict_del (dict, GFID_XATTR_KEY); - - filler.fd = _fd; - filler.this = this; - filler.flags = flags; - op_ret = dict_foreach (dict, _handle_fsetxattr_keyvalue_pair, - &filler); - if (op_ret < 0) - op_errno = -op_ret; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (fsetxattr, frame, op_ret, op_errno, NULL); - - return 0; -} - -int -_posix_remove_xattr (dict_t *dict, char *key, data_t *value, void *data) -{ - int32_t op_ret = 0; - xlator_t *this = NULL; - posix_xattr_filler_t *filler = NULL; - - filler = (posix_xattr_filler_t *) data; - this = filler->this; - - op_ret = sys_lremovexattr (filler->real_path, key); - if (op_ret == -1) { - filler->op_errno = errno; - if (errno != ENOATTR && errno != EPERM) - gf_log (this->name, GF_LOG_ERROR, - "removexattr failed on %s (for %s): %s", - filler->real_path, key, strerror (errno)); - } - - return op_ret; -} - - -int32_t -posix_removexattr (call_frame_t *frame, xlator_t *this, - loc_t *loc, const char *name, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - char * real_path = NULL; - posix_xattr_filler_t filler = {0,}; - - DECLARE_OLD_FS_ID_VAR; - - MAKE_INODE_HANDLE (real_path, this, loc, NULL); - - if (!strcmp (GFID_XATTR_KEY, name)) { - gf_log (this->name, GF_LOG_WARNING, "Remove xattr called" - " on gfid for file %s", real_path); - op_ret = -1; - goto out; - } - - - SET_FS_ID (frame->root->uid, frame->root->gid); - - /** - * sending an empty key name with xdata containing the - * list of key(s) to be removed implies "bulk remove request" - * for removexattr. - */ - if (name && (strcmp (name, "") == 0) && xdata) { - filler.real_path = real_path; - filler.this = this; - op_ret = dict_foreach (xdata, _posix_remove_xattr, &filler); - if (op_ret) { - op_errno = filler.op_errno; - } - - goto out; - } - - op_ret = sys_lremovexattr (real_path, name); - if (op_ret == -1) { - op_errno = errno; - if (op_errno != ENOATTR && op_errno != EPERM) - gf_log (this->name, GF_LOG_ERROR, - "removexattr on %s (for %s): %s", real_path, - name, strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (removexattr, frame, op_ret, op_errno, NULL); - return 0; -} - -int32_t -posix_fremovexattr (call_frame_t *frame, xlator_t *this, - fd_t *fd, const char *name, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - struct posix_fd * pfd = NULL; - int _fd = -1; - int ret = -1; - - DECLARE_OLD_FS_ID_VAR; - - if (!strcmp (GFID_XATTR_KEY, name)) { - gf_log (this->name, GF_LOG_WARNING, "Remove xattr called" - " on gfid for file"); - goto out; - } - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - op_errno = -ret; - gf_log (this->name, GF_LOG_WARNING, - "pfd is NULL from fd=%p", fd); - goto out; - } - _fd = pfd->fd; - - - - SET_FS_ID (frame->root->uid, frame->root->gid); - - op_ret = sys_fremovexattr (_fd, name); - if (op_ret == -1) { - op_errno = errno; - if (op_errno != ENOATTR && op_errno != EPERM) - gf_log (this->name, GF_LOG_ERROR, - "fremovexattr (for %s): %s", - name, strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (fremovexattr, frame, op_ret, op_errno, NULL); - return 0; -} - - -int32_t -posix_fsyncdir (call_frame_t *frame, xlator_t *this, - fd_t *fd, int datasync, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - int ret = -1; - struct posix_fd *pfd = NULL; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - op_errno = -ret; - gf_log (this->name, GF_LOG_WARNING, - "pfd is NULL, fd=%p", fd); - goto out; - } - - op_ret = 0; - -out: - STACK_UNWIND_STRICT (fsyncdir, frame, op_ret, op_errno, NULL); - - return 0; -} - - -void -posix_print_xattr (dict_t *this, - char *key, - data_t *value, - void *data) -{ - gf_log ("posix", GF_LOG_DEBUG, - "(key/val) = (%s/%d)", key, data_to_int32 (value)); -} - - -/** - * add_array - add two arrays of 32-bit numbers (stored in network byte order) - * dest = dest + src - * @count: number of 32-bit numbers - * FIXME: handle overflow - */ - -static void -__add_array (int32_t *dest, int32_t *src, int count) -{ - int i = 0; - int32_t destval = 0; - for (i = 0; i < count; i++) { - destval = ntoh32 (dest[i]); - if (destval == 0xffffffff) - continue; - dest[i] = hton32 (destval + ntoh32 (src[i])); - } -} - -static void -__or_array (int32_t *dest, int32_t *src, int count) -{ - int i = 0; - for (i = 0; i < count; i++) { - dest[i] = hton32 (ntoh32 (dest[i]) | ntoh32 (src[i])); - } -} - -static void -__and_array (int32_t *dest, int32_t *src, int count) -{ - int i = 0; - for (i = 0; i < count; i++) { - dest[i] = hton32 (ntoh32 (dest[i]) & ntoh32 (src[i])); - } -} - -static void -__add_long_array (int64_t *dest, int64_t *src, int count) -{ - int i = 0; - for (i = 0; i < count; i++) { - dest[i] = hton64 (ntoh64 (dest[i]) + ntoh64 (src[i])); - } -} - -static int -_posix_handle_xattr_keyvalue_pair (dict_t *d, char *k, data_t *v, - void *tmp) -{ - int size = 0; - int count = 0; - int op_ret = 0; - int op_errno = 0; - gf_xattrop_flags_t optype = 0; - char *array = NULL; - inode_t *inode = NULL; - xlator_t *this = NULL; - posix_xattr_filler_t *filler = NULL; - - filler = tmp; - - optype = (gf_xattrop_flags_t)(filler->flags); - this = filler->this; - inode = filler->inode; - - count = v->len; - array = GF_CALLOC (count, sizeof (char), gf_posix_mt_char); - - LOCK (&inode->lock); - { - if (filler->real_path) { - size = sys_lgetxattr (filler->real_path, k, - (char *)array, v->len); - } else { - size = sys_fgetxattr (filler->fd, k, (char *)array, - v->len); - } - - op_errno = errno; - if ((size == -1) && (op_errno != ENODATA) && - (op_errno != ENOATTR)) { - if (op_errno == ENOTSUP) { - GF_LOG_OCCASIONALLY(gf_posix_xattr_enotsup_log, - this->name, GF_LOG_WARNING, - "Extended attributes not " - "supported by filesystem"); - } else if (op_errno != ENOENT || - !posix_special_xattr (marker_xattrs, - k)) { - if (filler->real_path) - gf_log (this->name, GF_LOG_ERROR, - "getxattr failed on %s while doing " - "xattrop: Key:%s (%s)", - filler->real_path, - k, strerror (op_errno)); - else - gf_log (this->name, GF_LOG_ERROR, - "fgetxattr failed on fd=%d while doing " - "xattrop: Key:%s (%s)", - filler->fd, - k, strerror (op_errno)); - } - - op_ret = -1; - goto unlock; - } - - switch (optype) { - - case GF_XATTROP_ADD_ARRAY: - __add_array ((int32_t *) array, (int32_t *) v->data, - v->len / 4); - break; - - case GF_XATTROP_ADD_ARRAY64: - __add_long_array ((int64_t *) array, (int64_t *) v->data, - v->len / 8); - break; - - case GF_XATTROP_OR_ARRAY: - __or_array ((int32_t *) array, - (int32_t *) v->data, - v->len / 4); - break; - - case GF_XATTROP_AND_ARRAY: - __and_array ((int32_t *) array, - (int32_t *) v->data, - v->len / 4); - break; - - default: - gf_log (this->name, GF_LOG_ERROR, - "Unknown xattrop type (%d) on %s. Please send " - "a bug report to gluster-devel@nongnu.org", - optype, filler->real_path); - op_ret = -1; - op_errno = EINVAL; - goto unlock; - } - - if (filler->real_path) { - size = sys_lsetxattr (filler->real_path, k, array, - v->len, 0); - } else { - size = sys_fsetxattr (filler->fd, k, (char *)array, - v->len, 0); - } - } -unlock: - UNLOCK (&inode->lock); - - if (op_ret == -1) - goto out; - - op_errno = errno; - if (size == -1) { - if (filler->real_path) - gf_log (this->name, GF_LOG_ERROR, - "setxattr failed on %s while doing xattrop: " - "key=%s (%s)", filler->real_path, - k, strerror (op_errno)); - else - gf_log (this->name, GF_LOG_ERROR, - "fsetxattr failed on fd=%d while doing xattrop: " - "key=%s (%s)", filler->fd, - k, strerror (op_errno)); - - op_ret = -1; - goto out; - } else { - size = dict_set_bin (d, k, array, v->len); - - if (size != 0) { - if (filler->real_path) - gf_log (this->name, GF_LOG_DEBUG, - "dict_set_bin failed (path=%s): " - "key=%s (%s)", filler->real_path, - k, strerror (-size)); - else - gf_log (this->name, GF_LOG_DEBUG, - "dict_set_bin failed (fd=%d): " - "key=%s (%s)", filler->fd, - k, strerror (-size)); - - op_ret = -1; - op_errno = EINVAL; - goto out; - } - array = NULL; - } - - array = NULL; - -out: - return op_ret; -} - -/** - * xattrop - xattr operations - for internal use by GlusterFS - * @optype: ADD_ARRAY: - * dict should contain: - * "key" ==> array of 32-bit numbers - */ - -int -do_xattrop (call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd, - gf_xattrop_flags_t optype, dict_t *xattr) -{ - int op_ret = 0; - int op_errno = 0; - int _fd = -1; - char *real_path = NULL; - struct posix_fd *pfd = NULL; - inode_t *inode = NULL; - posix_xattr_filler_t filler = {0,}; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (xattr, out); - VALIDATE_OR_GOTO (this, out); - - if (fd) { - op_ret = posix_fd_ctx_get (fd, this, &pfd); - if (op_ret < 0) { - gf_log (this->name, GF_LOG_WARNING, - "failed to get pfd from fd=%p", - fd); - op_errno = EBADFD; - goto out; - } - _fd = pfd->fd; - } - - if (loc && !uuid_is_null (loc->gfid)) - MAKE_INODE_HANDLE (real_path, this, loc, NULL); - - if (real_path) { - inode = loc->inode; - } else if (fd) { - inode = fd->inode; - } - - filler.this = this; - filler.fd = _fd; - filler.real_path = real_path; - filler.flags = (int)optype; - filler.inode = inode; - - op_ret = dict_foreach (xattr, _posix_handle_xattr_keyvalue_pair, - &filler); - -out: - - STACK_UNWIND_STRICT (xattrop, frame, op_ret, op_errno, xattr, NULL); - return 0; -} - - -int -posix_xattrop (call_frame_t *frame, xlator_t *this, - loc_t *loc, gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata) -{ - do_xattrop (frame, this, loc, NULL, optype, xattr); - return 0; -} - - -int -posix_fxattrop (call_frame_t *frame, xlator_t *this, - fd_t *fd, gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata) -{ - do_xattrop (frame, this, NULL, fd, optype, xattr); - return 0; -} - - -int -posix_access (call_frame_t *frame, xlator_t *this, - loc_t *loc, int32_t mask, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - char *real_path = NULL; - - DECLARE_OLD_FS_ID_VAR; - SET_FS_ID (frame->root->uid, frame->root->gid); - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (loc, out); - - MAKE_INODE_HANDLE (real_path, this, loc, NULL); - - op_ret = access (real_path, mask & 07); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, "access failed on %s: %s", - real_path, strerror (op_errno)); - goto out; - } - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (access, frame, op_ret, op_errno, NULL); - return 0; -} - - -int32_t -posix_ftruncate (call_frame_t *frame, xlator_t *this, - fd_t *fd, off_t offset, dict_t *xdata) -{ - int32_t op_ret = -1; - int32_t op_errno = 0; - int _fd = -1; - struct iatt preop = {0,}; - struct iatt postop = {0,}; - struct posix_fd *pfd = NULL; - int ret = -1; - struct posix_private *priv = NULL; - - DECLARE_OLD_FS_ID_VAR; - SET_FS_ID (frame->root->uid, frame->root->gid); - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - - priv = this->private; - VALIDATE_OR_GOTO (priv, out); - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, - "pfd is NULL, fd=%p", fd); - op_errno = -ret; - goto out; - } - - _fd = pfd->fd; - - op_ret = posix_fdstat (this, _fd, &preop); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "pre-operation fstat failed on fd=%p: %s", fd, - strerror (op_errno)); - goto out; - } - - op_ret = ftruncate (_fd, offset); - - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "ftruncate failed on fd=%p (%"PRId64": %s", - fd, offset, strerror (errno)); - goto out; - } - - op_ret = posix_fdstat (this, _fd, &postop); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, - "post-operation fstat failed on fd=%p: %s", - fd, strerror (errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (ftruncate, frame, op_ret, op_errno, &preop, - &postop, NULL); - - return 0; -} - - -int32_t -posix_fstat (call_frame_t *frame, xlator_t *this, - fd_t *fd, dict_t *xdata) -{ - int _fd = -1; - int32_t op_ret = -1; - int32_t op_errno = 0; - struct iatt buf = {0,}; - struct posix_fd *pfd = NULL; - int ret = -1; - struct posix_private *priv = NULL; - - DECLARE_OLD_FS_ID_VAR; - SET_FS_ID (frame->root->uid, frame->root->gid); - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - - priv = this->private; - VALIDATE_OR_GOTO (priv, out); - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, - "pfd is NULL, fd=%p", fd); - op_errno = -ret; - goto out; - } - - _fd = pfd->fd; - - op_ret = posix_fdstat (this, _fd, &buf); - if (op_ret == -1) { - op_errno = errno; - gf_log (this->name, GF_LOG_ERROR, "fstat failed on fd=%p: %s", - fd, strerror (op_errno)); - goto out; - } - - op_ret = 0; - -out: - SET_TO_OLD_FS_ID (); - - STACK_UNWIND_STRICT (fstat, frame, op_ret, op_errno, &buf, NULL); - return 0; -} - -static int gf_posix_lk_log; - -int32_t -posix_lk (call_frame_t *frame, xlator_t *this, - fd_t *fd, int32_t cmd, struct gf_flock *lock, dict_t *xdata) -{ - struct gf_flock nullock = {0, }; - - GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL, - "\"features/locks\" translator is " - "not loaded. You need to use it for proper " - "functioning of your application."); - - STACK_UNWIND_STRICT (lk, frame, -1, ENOSYS, &nullock, NULL); - return 0; -} - -int32_t -posix_inodelk (call_frame_t *frame, xlator_t *this, - const char *volume, loc_t *loc, int32_t cmd, - struct gf_flock *lock, dict_t *xdata) -{ - GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL, - "\"features/locks\" translator is " - "not loaded. You need to use it for proper " - "functioning of your application."); - - STACK_UNWIND_STRICT (inodelk, frame, -1, ENOSYS, NULL); - return 0; -} - -int32_t -posix_finodelk (call_frame_t *frame, xlator_t *this, - const char *volume, fd_t *fd, int32_t cmd, - struct gf_flock *lock, dict_t *xdata) -{ - GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL, - "\"features/locks\" translator is " - "not loaded. You need to use it for proper " - "functioning of your application."); - - STACK_UNWIND_STRICT (finodelk, frame, -1, ENOSYS, NULL); - return 0; -} - - -int32_t -posix_entrylk (call_frame_t *frame, xlator_t *this, - const char *volume, loc_t *loc, const char *basename, - entrylk_cmd cmd, entrylk_type type, dict_t *xdata) -{ - GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL, - "\"features/locks\" translator is " - "not loaded. You need to use it for proper " - "functioning of your application."); - - STACK_UNWIND_STRICT (entrylk, frame, -1, ENOSYS, NULL); - return 0; -} - -int32_t -posix_fentrylk (call_frame_t *frame, xlator_t *this, - const char *volume, fd_t *fd, const char *basename, - entrylk_cmd cmd, entrylk_type type, dict_t *xdata) -{ - GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL, - "\"features/locks\" translator is " - "not loaded. You need to use it for proper " - "functioning of your application."); - - STACK_UNWIND_STRICT (fentrylk, frame, -1, ENOSYS, NULL); - return 0; -} - - -int -posix_fill_readdir (fd_t *fd, DIR *dir, off_t off, size_t size, - gf_dirent_t *entries, xlator_t *this, int32_t skip_dirs) -{ - off_t in_case = -1; - size_t filled = 0; - int count = 0; - char entrybuf[sizeof(struct dirent) + 256 + 8]; - struct dirent *entry = NULL; - int32_t this_size = -1; - gf_dirent_t *this_entry = NULL; - uuid_t rootgfid = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}; - struct stat stbuf = {0,}; - char *hpath = NULL; - int len = 0; - int ret = 0; - - if (skip_dirs) { - len = posix_handle_path (this, fd->inode->gfid, NULL, NULL, 0); - hpath = alloca (len + 256); /* NAME_MAX */ - posix_handle_path (this, fd->inode->gfid, NULL, hpath, len); - len = strlen (hpath); - hpath[len] = '/'; - } - - if (!off) { - rewinddir (dir); - } else { - seekdir (dir, off); - } - - while (filled <= size) { - in_case = telldir (dir); - - if (in_case == -1) { - gf_log (THIS->name, GF_LOG_ERROR, - "telldir failed on dir=%p: %s", - dir, strerror (errno)); - goto out; - } - - errno = 0; - entry = NULL; - readdir_r (dir, (struct dirent *)entrybuf, &entry); - - if (!entry) { - if (errno == EBADF) { - gf_log (THIS->name, GF_LOG_WARNING, - "readdir failed on dir=%p: %s", - dir, strerror (errno)); - goto out; - } - break; - } - -#ifdef __NetBSD__ - /* - * NetBSD with UFS1 backend uses backing files for - * extended attributes. They can be found in a - * .attribute file located at the root of the filesystem - * We hide it to glusterfs clients, since chaos will occur - * when the cluster/dht xlator decides to distribute - * exended attribute backing file accross storage servers. - */ - if ((uuid_compare (fd->inode->gfid, rootgfid) == 0) - && (!strcmp(entry->d_name, ".attribute"))) - continue; -#endif /* __NetBSD__ */ - - if ((uuid_compare (fd->inode->gfid, rootgfid) == 0) - && (!strcmp (GF_HIDDEN_PATH, entry->d_name))) { - continue; - } - - if (skip_dirs) { - if (DT_ISDIR (entry->d_type)) { - continue; - } else if (hpath) { - strcpy (&hpath[len+1],entry->d_name); - ret = lstat (hpath, &stbuf); - if (!ret && S_ISDIR (stbuf.st_mode)) - continue; - } - } - - this_size = max (sizeof (gf_dirent_t), - sizeof (gfs3_dirplist)) - + strlen (entry->d_name) + 1; - - if (this_size + filled > size) { - seekdir (dir, in_case); - break; - } - - this_entry = gf_dirent_for_name (entry->d_name); - - if (!this_entry) { - gf_log (THIS->name, GF_LOG_ERROR, - "could not create gf_dirent for entry %s: (%s)", - entry->d_name, strerror (errno)); - goto out; - } - this_entry->d_off = telldir (dir); - this_entry->d_ino = entry->d_ino; - this_entry->d_type = entry->d_type; - - list_add_tail (&this_entry->list, &entries->list); - - filled += this_size; - count ++; - } - - if ((!readdir (dir) && (errno == 0))) - /* Indicate EOF */ - errno = ENOENT; -out: - return count; -} - -dict_t * -posix_entry_xattr_fill (xlator_t *this, inode_t *inode, - fd_t *fd, char *name, dict_t *dict, - struct iatt *stbuf) -{ - loc_t tmp_loc = {0,}; - char *entry_path = NULL; - - /* if we don't send the 'loc', open-fd-count be a problem. */ - tmp_loc.inode = inode; - - MAKE_HANDLE_PATH (entry_path, this, fd->inode->gfid, name); - - return posix_lookup_xattr_fill (this, entry_path, - &tmp_loc, dict, stbuf); - -} - - -int -posix_readdirp_fill (xlator_t *this, fd_t *fd, gf_dirent_t *entries, dict_t *dict) -{ - gf_dirent_t *entry = NULL; - inode_table_t *itable = NULL; - inode_t *inode = NULL; - char *hpath = NULL; - int len = 0; - struct iatt stbuf = {0, }; - uuid_t gfid; - - if (list_empty(&entries->list)) - return 0; - - itable = fd->inode->table; - - len = posix_handle_path (this, fd->inode->gfid, NULL, NULL, 0); - hpath = alloca (len + 256); /* NAME_MAX */ - posix_handle_path (this, fd->inode->gfid, NULL, hpath, len); - len = strlen (hpath); - hpath[len] = '/'; - - list_for_each_entry (entry, &entries->list, list) { - memset (gfid, 0, 16); - inode = inode_grep (fd->inode->table, fd->inode, - entry->d_name); - if (inode) - uuid_copy (gfid, inode->gfid); - - strcpy (&hpath[len+1], entry->d_name); - - posix_pstat (this, gfid, hpath, &stbuf); - - if (!inode) - inode = inode_find (itable, stbuf.ia_gfid); - - if (!inode) - inode = inode_new (itable); - - entry->inode = inode; - - if (dict) { - entry->dict = - posix_entry_xattr_fill (this, entry->inode, - fd, entry->d_name, - dict, &stbuf); - dict_ref (entry->dict); - } - - entry->d_stat = stbuf; - if (stbuf.ia_ino) - entry->d_ino = stbuf.ia_ino; - inode = NULL; - } - - return 0; -} - - -int32_t -posix_do_readdir (call_frame_t *frame, xlator_t *this, - fd_t *fd, size_t size, off_t off, int whichop, dict_t *dict) -{ - struct posix_fd *pfd = NULL; - DIR *dir = NULL; - int ret = -1; - int count = 0; - int32_t op_ret = -1; - int32_t op_errno = 0; - gf_dirent_t entries; - int32_t skip_dirs = 0; - - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - - INIT_LIST_HEAD (&entries.list); - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, - "pfd is NULL, fd=%p", fd); - op_errno = -ret; - goto out; - } - - dir = pfd->dir; - - if (!dir) { - gf_log (this->name, GF_LOG_WARNING, - "dir is NULL for fd=%p", fd); - op_errno = EINVAL; - goto out; - } - - /* When READDIR_FILTER option is set to on, we can filter out - * directory's entry from the entry->list. - */ - ret = dict_get_int32 (dict, GF_READDIR_SKIP_DIRS, &skip_dirs); - - LOCK (&fd->lock); - { - /* posix_fill_readdir performs multiple separate individual - readdir() calls to fill up the buffer. - - In case of NFS where the same anonymous FD is shared between - different applications, reading a common directory can - result in the anonymous fd getting re-used unsafely between - the two readdir requests (in two different io-threads). - - It would also help, in the future, to replace the loop - around readdir() with a single large getdents() call. - */ - count = posix_fill_readdir (fd, dir, off, size, &entries, this, - skip_dirs); - } - UNLOCK (&fd->lock); - - /* pick ENOENT to indicate EOF */ - op_errno = errno; - op_ret = count; - - if (whichop != GF_FOP_READDIRP) - goto out; - - posix_readdirp_fill (this, fd, &entries, dict); - -out: - STACK_UNWIND_STRICT (readdir, frame, op_ret, op_errno, &entries, NULL); - - gf_dirent_free (&entries); - - return 0; -} - - -int32_t -posix_readdir (call_frame_t *frame, xlator_t *this, - fd_t *fd, size_t size, off_t off, dict_t *xdata) -{ - posix_do_readdir (frame, this, fd, size, off, GF_FOP_READDIR, xdata); - return 0; -} - - -int32_t -posix_readdirp (call_frame_t *frame, xlator_t *this, - fd_t *fd, size_t size, off_t off, dict_t *dict) -{ - posix_do_readdir (frame, this, fd, size, off, GF_FOP_READDIRP, dict); - return 0; -} - -int32_t -posix_priv (xlator_t *this) -{ - struct posix_private *priv = NULL; - char key_prefix[GF_DUMP_MAX_BUF_LEN]; - - snprintf(key_prefix, GF_DUMP_MAX_BUF_LEN, "%s.%s", this->type, - this->name); - gf_proc_dump_add_section(key_prefix); - - if (!this) - return 0; - - priv = this->private; - - if (!priv) - return 0; - - gf_proc_dump_write("base_path","%s", priv->base_path); - gf_proc_dump_write("base_path_length","%d", priv->base_path_length); - gf_proc_dump_write("max_read","%d", priv->read_value); - gf_proc_dump_write("max_write","%d", priv->write_value); - gf_proc_dump_write("nr_files","%ld", priv->nr_files); - - return 0; -} - -int32_t -posix_inode (xlator_t *this) -{ - return 0; -} - - -int32_t -posix_rchecksum (call_frame_t *frame, xlator_t *this, - fd_t *fd, off_t offset, int32_t len, dict_t *xdata) -{ - char *alloc_buf = NULL; - char *buf = NULL; - int _fd = -1; - struct posix_fd *pfd = NULL; - int op_ret = -1; - int op_errno = 0; - int ret = 0; - int32_t weak_checksum = 0; - unsigned char strong_checksum[MD5_DIGEST_LENGTH] = {0}; - struct posix_private *priv = NULL; - - VALIDATE_OR_GOTO (frame, out); - VALIDATE_OR_GOTO (this, out); - VALIDATE_OR_GOTO (fd, out); - - priv = this->private; - memset (strong_checksum, 0, MD5_DIGEST_LENGTH); - - alloc_buf = _page_aligned_alloc (len, &buf); - if (!alloc_buf) { - op_errno = ENOMEM; - goto out; - } - - ret = posix_fd_ctx_get (fd, this, &pfd); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, - "pfd is NULL, fd=%p", fd); - op_errno = -ret; - goto out; - } - - _fd = pfd->fd; - - LOCK (&fd->lock); - { - if (priv->aio_capable && priv->aio_init_done) - __posix_fd_set_odirect (fd, pfd, 0, offset, len); - - ret = pread (_fd, buf, len, offset); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, - "pread of %d bytes returned %d (%s)", - len, ret, strerror (errno)); - - op_errno = errno; - } - - } - UNLOCK (&fd->lock); - - if (ret < 0) - goto out; - - weak_checksum = gf_rsync_weak_checksum ((unsigned char *) buf, (size_t) len); - gf_rsync_strong_checksum ((unsigned char *) buf, (size_t) len, (unsigned char *) strong_checksum); - - op_ret = 0; -out: - STACK_UNWIND_STRICT (rchecksum, frame, op_ret, op_errno, - weak_checksum, strong_checksum, NULL); - - GF_FREE (alloc_buf); - - return 0; -} - - -/** - * notify - when parent sends PARENT_UP, send CHILD_UP event from here - */ -int32_t -notify (xlator_t *this, - int32_t event, - void *data, - ...) -{ - switch (event) - { - case GF_EVENT_PARENT_UP: - { - /* Tell the parent that posix xlator is up */ - default_notify (this, GF_EVENT_CHILD_UP, data); - } - break; - default: - /* */ - break; - } - return 0; -} +#include <glusterfs/xlator.h> +#include "posix.h" int32_t -mem_acct_init (xlator_t *this) -{ - int ret = -1; - - if (!this) - return ret; - - ret = xlator_mem_acct_init (this, gf_posix_mt_end + 1); - - if (ret != 0) { - gf_log(this->name, GF_LOG_ERROR, "Memory accounting init" - "failed"); - return ret; - } - - return ret; -} - -static int -posix_set_owner (xlator_t *this, uid_t uid, gid_t gid) -{ - struct posix_private *priv = NULL; - int ret = -1; - - priv = this->private; - - ret = sys_chown (priv->base_path, uid, gid); - if (ret) - gf_log (this->name, GF_LOG_ERROR, "Failed to set " - "uid/gid for brick path %s, %s", - priv->base_path, strerror (errno)); - - return ret; -} - - -static int -set_batch_fsync_mode (struct posix_private *priv, const char *str) -{ - if (strcmp (str, "none") == 0) - priv->batch_fsync_mode = BATCH_NONE; - else if (strcmp (str, "syncfs") == 0) - priv->batch_fsync_mode = BATCH_SYNCFS; - else if (strcmp (str, "syncfs-single-fsync") == 0) - priv->batch_fsync_mode = BATCH_SYNCFS_SINGLE_FSYNC; - else if (strcmp (str, "syncfs-reverse-fsync") == 0) - priv->batch_fsync_mode = BATCH_SYNCFS_REVERSE_FSYNC; - else if (strcmp (str, "reverse-fsync") == 0) - priv->batch_fsync_mode = BATCH_REVERSE_FSYNC; - else - return -1; - - return 0; -} - - -int -reconfigure (xlator_t *this, dict_t *options) -{ - int ret = -1; - struct posix_private *priv = NULL; - uid_t uid = -1; - gid_t gid = -1; - char *batch_fsync_mode_str = NULL; - - priv = this->private; - - GF_OPTION_RECONF ("brick-uid", uid, options, uint32, out); - GF_OPTION_RECONF ("brick-gid", gid, options, uint32, out); - posix_set_owner (this, uid, gid); - - GF_OPTION_RECONF ("batch-fsync-delay-usec", priv->batch_fsync_delay_usec, - options, uint32, out); - - GF_OPTION_RECONF ("batch-fsync-mode", batch_fsync_mode_str, - options, str, out); - - if (set_batch_fsync_mode (priv, batch_fsync_mode_str) != 0) { - gf_log (this->name, GF_LOG_ERROR, "Unknown mode string: %s", - batch_fsync_mode_str); - goto out; - } - - GF_OPTION_RECONF ("linux-aio", priv->aio_configured, - options, bool, out); - - if (priv->aio_configured) - posix_aio_on (this); - else - posix_aio_off (this); - - GF_OPTION_RECONF ("node-uuid-pathinfo", priv->node_uuid_pathinfo, - options, bool, out); - - if (priv->node_uuid_pathinfo && - (uuid_is_null (priv->glusterd_uuid))) { - gf_log (this->name, GF_LOG_INFO, - "glusterd uuid is NULL, pathinfo xattr would" - " fallback to <hostname>:<export>"); - } - - GF_OPTION_RECONF ("health-check-interval", priv->health_check_interval, - options, uint32, out); - posix_spawn_health_check_thread (this); - - ret = 0; -out: - return ret; -} - - -/** - * init - - */ -int -init (xlator_t *this) -{ - struct posix_private *_private = NULL; - data_t *dir_data = NULL; - data_t *tmp_data = NULL; - struct stat buf = {0,}; - gf_boolean_t tmp_bool = 0; - int dict_ret = 0; - int ret = 0; - int op_ret = -1; - ssize_t size = -1; - int32_t janitor_sleep = 0; - uuid_t old_uuid = {0,}; - uuid_t dict_uuid = {0,}; - uuid_t gfid = {0,}; - uuid_t rootgfid = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}; - char *guuid = NULL; - uid_t uid = -1; - gid_t gid = -1; - char *batch_fsync_mode_str; - - dir_data = dict_get (this->options, "directory"); - - if (this->children) { - gf_log (this->name, GF_LOG_CRITICAL, - "FATAL: storage/posix cannot have subvolumes"); - ret = -1; - goto out; - } - - if (!this->parents) { - gf_log (this->name, GF_LOG_WARNING, - "Volume is dangling. Please check the volume file."); - } - - if (!dir_data) { - gf_log (this->name, GF_LOG_CRITICAL, - "Export directory not specified in volume file."); - ret = -1; - goto out; - } - - umask (000); // umask `masking' is done at the client side - - /* Check whether the specified directory exists, if not log it. */ - op_ret = stat (dir_data->data, &buf); - if ((op_ret != 0) || !S_ISDIR (buf.st_mode)) { - gf_log (this->name, GF_LOG_ERROR, - "Directory '%s' doesn't exist, exiting.", - dir_data->data); - ret = -1; - goto out; - } - - /* Check for Extended attribute support, if not present, log it */ - op_ret = sys_lsetxattr (dir_data->data, - "trusted.glusterfs.test", "working", 8, 0); - if (op_ret == 0) { - sys_lremovexattr (dir_data->data, "trusted.glusterfs.test"); - } else { - tmp_data = dict_get (this->options, - "mandate-attribute"); - if (tmp_data) { - if (gf_string2boolean (tmp_data->data, - &tmp_bool) == -1) { - gf_log (this->name, GF_LOG_ERROR, - "wrong option provided for key " - "\"mandate-attribute\""); - ret = -1; - goto out; - } - if (!tmp_bool) { - gf_log (this->name, GF_LOG_WARNING, - "Extended attribute not supported, " - "starting as per option"); - } else { - gf_log (this->name, GF_LOG_CRITICAL, - "Extended attribute not supported, " - "exiting."); - ret = -1; - goto out; - } - } else { - gf_log (this->name, GF_LOG_CRITICAL, - "Extended attribute not supported, exiting."); - ret = -1; - goto out; - } - } - - tmp_data = dict_get (this->options, "volume-id"); - if (tmp_data) { - op_ret = uuid_parse (tmp_data->data, dict_uuid); - if (op_ret < 0) { - gf_log (this->name, GF_LOG_ERROR, - "wrong volume-id (%s) set in volume file", - tmp_data->data); - ret = -1; - goto out; - } - size = sys_lgetxattr (dir_data->data, - "trusted.glusterfs.volume-id", old_uuid, 16); - if (size == 16) { - if (uuid_compare (old_uuid, dict_uuid)) { - gf_log (this->name, GF_LOG_ERROR, - "mismatching volume-id (%s) received. " - "already is a part of volume %s ", - tmp_data->data, uuid_utoa (old_uuid)); - ret = -1; - goto out; - } - } else if ((size == -1) && (errno == ENODATA)) { - - gf_log (this->name, GF_LOG_ERROR, - "Extended attribute trusted.glusterfs." - "volume-id is absent"); - ret = -1; - goto out; - - } else if ((size == -1) && (errno != ENODATA)) { - /* Wrong 'volume-id' is set, it should be error */ - gf_log (this->name, GF_LOG_WARNING, - "%s: failed to fetch volume-id (%s)", - dir_data->data, strerror (errno)); - ret = -1; - goto out; - } else { - ret = -1; - gf_log (this->name, GF_LOG_ERROR, - "failed to fetch proper volume id from export"); - goto out; - } - } - - /* Now check if the export directory has some other 'gfid', - other than that of root '/' */ - size = sys_lgetxattr (dir_data->data, "trusted.gfid", gfid, 16); - if (size == 16) { - if (!__is_root_gfid (gfid)) { - gf_log (this->name, GF_LOG_WARNING, - "%s: gfid (%s) is not that of glusterfs '/' ", - dir_data->data, uuid_utoa (gfid)); - ret = -1; - goto out; - } - } else if (size != -1) { - /* Wrong 'gfid' is set, it should be error */ - gf_log (this->name, GF_LOG_WARNING, - "%s: wrong value set as gfid", - dir_data->data); - ret = -1; - goto out; - } else if ((size == -1) && (errno != ENODATA)) { - /* Wrong 'gfid' is set, it should be error */ - gf_log (this->name, GF_LOG_WARNING, - "%s: failed to fetch gfid (%s)", - dir_data->data, strerror (errno)); - ret = -1; - goto out; - } else { - /* First time volume, set the GFID */ - size = sys_lsetxattr (dir_data->data, "trusted.gfid", rootgfid, - 16, XATTR_CREATE); - if (size) { - gf_log (this->name, GF_LOG_ERROR, - "%s: failed to set gfid (%s)", - dir_data->data, strerror (errno)); - ret = -1; - goto out; - } - } - - size = sys_lgetxattr (dir_data->data, "system.posix_acl_access", - NULL, 0); - if ((size < 0) && (errno == ENOTSUP)) - gf_log (this->name, GF_LOG_WARNING, - "Posix access control list is not supported."); - - ret = 0; - _private = GF_CALLOC (1, sizeof (*_private), - gf_posix_mt_posix_private); - if (!_private) { - ret = -1; - goto out; - } - - _private->base_path = gf_strdup (dir_data->data); - _private->base_path_length = strlen (_private->base_path); - - LOCK_INIT (&_private->lock); - - ret = dict_get_str (this->options, "hostname", &_private->hostname); - if (ret) { - _private->hostname = GF_CALLOC (256, sizeof (char), - gf_common_mt_char); - if (!_private->hostname) { - goto out; - } - ret = gethostname (_private->hostname, 256); - if (ret < 0) { - gf_log (this->name, GF_LOG_WARNING, - "could not find hostname (%s)", strerror (errno)); - } - } - - _private->export_statfs = 1; - tmp_data = dict_get (this->options, "export-statfs-size"); - if (tmp_data) { - if (gf_string2boolean (tmp_data->data, - &_private->export_statfs) == -1) { - ret = -1; - gf_log (this->name, GF_LOG_ERROR, - "'export-statfs-size' takes only boolean " - "options"); - goto out; - } - if (!_private->export_statfs) - gf_log (this->name, GF_LOG_DEBUG, - "'statfs()' returns dummy size"); - } - - _private->background_unlink = 0; - tmp_data = dict_get (this->options, "background-unlink"); - if (tmp_data) { - if (gf_string2boolean (tmp_data->data, - &_private->background_unlink) == -1) { - ret = -1; - gf_log (this->name, GF_LOG_ERROR, - "'background-unlink' takes only boolean " - "options"); - goto out; - } - - if (_private->background_unlink) - gf_log (this->name, GF_LOG_DEBUG, - "unlinks will be performed in background"); - } - - tmp_data = dict_get (this->options, "o-direct"); - if (tmp_data) { - if (gf_string2boolean (tmp_data->data, - &_private->o_direct) == -1) { - ret = -1; - gf_log (this->name, GF_LOG_ERROR, - "wrong option provided for 'o-direct'"); - goto out; - } - if (_private->o_direct) - gf_log (this->name, GF_LOG_DEBUG, - "o-direct mode is enabled (O_DIRECT " - "for every open)"); - } - - ret = dict_get_str (this->options, "glusterd-uuid", &guuid); - if (!ret) { - if (uuid_parse (guuid, _private->glusterd_uuid)) - gf_log (this->name, GF_LOG_WARNING, "Cannot parse " - "glusterd (node) UUID, node-uuid xattr " - "request would return - \"No such attribute\""); - } else { - gf_log (this->name, GF_LOG_DEBUG, "No glusterd (node) UUID " - "passed - node-uuid xattr request will return " - "\"No such attribute\""); - } - ret = 0; - - _private->janitor_sleep_duration = 600; - - dict_ret = dict_get_int32 (this->options, "janitor-sleep-duration", - &janitor_sleep); - if (dict_ret == 0) { - gf_log (this->name, GF_LOG_DEBUG, - "Setting janitor sleep duration to %d.", - janitor_sleep); - - _private->janitor_sleep_duration = janitor_sleep; - } - /* performing open dir on brick dir locks the brick dir - * and prevents it from being unmounted - */ - _private->mount_lock = opendir (dir_data->data); - if (!_private->mount_lock) { - ret = -1; - gf_log (this->name, GF_LOG_ERROR, - "Could not lock brick directory"); - goto out; - } -#ifndef GF_DARWIN_HOST_OS - { - struct rlimit lim; - lim.rlim_cur = 1048576; - lim.rlim_max = 1048576; - - if (setrlimit (RLIMIT_NOFILE, &lim) == -1) { - gf_log (this->name, GF_LOG_WARNING, - "Failed to set 'ulimit -n " - " 1048576': %s", strerror(errno)); - lim.rlim_cur = 65536; - lim.rlim_max = 65536; - - if (setrlimit (RLIMIT_NOFILE, &lim) == -1) { - gf_log (this->name, GF_LOG_WARNING, - "Failed to set maximum allowed open " - "file descriptors to 64k: %s", - strerror(errno)); - } - else { - gf_log (this->name, GF_LOG_INFO, - "Maximum allowed open file descriptors " - "set to 65536"); - } - } - } -#endif - this->private = (void *)_private; - - op_ret = posix_handle_init (this); - if (op_ret == -1) { - gf_log (this->name, GF_LOG_ERROR, - "Posix handle setup failed"); - ret = -1; - goto out; - } - - op_ret = posix_handle_trash_init (this); - if (op_ret < 0) { - gf_log (this->name, GF_LOG_ERROR, - "Posix landfill setup failed"); - ret = -1; - goto out; - } - - _private->aio_init_done = _gf_false; - _private->aio_capable = _gf_false; - - GF_OPTION_INIT ("brick-uid", uid, uint32, out); - GF_OPTION_INIT ("brick-gid", gid, uint32, out); - posix_set_owner (this, uid, gid); - - GF_OPTION_INIT ("linux-aio", _private->aio_configured, bool, out); - - if (_private->aio_configured) { - op_ret = posix_aio_on (this); - - if (op_ret == -1) { - gf_log (this->name, GF_LOG_ERROR, - "Posix AIO init failed"); - ret = -1; - goto out; - } - } - - GF_OPTION_INIT ("node-uuid-pathinfo", - _private->node_uuid_pathinfo, bool, out); - if (_private->node_uuid_pathinfo && - (uuid_is_null (_private->glusterd_uuid))) { - gf_log (this->name, GF_LOG_INFO, - "glusterd uuid is NULL, pathinfo xattr would" - " fallback to <hostname>:<export>"); - } - - _private->health_check_active = _gf_false; - GF_OPTION_INIT ("health-check-interval", - _private->health_check_interval, uint32, out); - if (_private->health_check_interval) - posix_spawn_health_check_thread (this); - - pthread_mutex_init (&_private->janitor_lock, NULL); - pthread_cond_init (&_private->janitor_cond, NULL); - INIT_LIST_HEAD (&_private->janitor_fds); - - posix_spawn_janitor_thread (this); - - pthread_mutex_init (&_private->fsync_mutex, NULL); - pthread_cond_init (&_private->fsync_cond, NULL); - INIT_LIST_HEAD (&_private->fsyncs); - - ret = pthread_create (&_private->fsyncer, NULL, posix_fsyncer, this); - if (ret) { - gf_log (this->name, GF_LOG_ERROR, "fsyncer thread" - " creation failed (%s)", strerror (errno)); - goto out; - } - - GF_OPTION_INIT ("batch-fsync-mode", batch_fsync_mode_str, str, out); - - if (set_batch_fsync_mode (_private, batch_fsync_mode_str) != 0) { - gf_log (this->name, GF_LOG_ERROR, "Unknown mode string: %s", - batch_fsync_mode_str); - goto out; - } - - GF_OPTION_INIT ("batch-fsync-delay-usec", _private->batch_fsync_delay_usec, - uint32, out); -out: - return ret; -} +mem_acct_init(xlator_t *this); -void -fini (xlator_t *this) -{ - struct posix_private *priv = this->private; - if (!priv) - return; - this->private = NULL; - /*unlock brick dir*/ - if (priv->mount_lock) - closedir (priv->mount_lock); - GF_FREE (priv); - return; -} +extern struct volume_options posix_options[]; struct xlator_dumpops dumpops = { - .priv = posix_priv, - .inode = posix_inode, + .priv = posix_priv, + .inode = posix_inode, }; struct xlator_fops fops = { - .lookup = posix_lookup, - .stat = posix_stat, - .opendir = posix_opendir, - .readdir = posix_readdir, - .readdirp = posix_readdirp, - .readlink = posix_readlink, - .mknod = posix_mknod, - .mkdir = posix_mkdir, - .unlink = posix_unlink, - .rmdir = posix_rmdir, - .symlink = posix_symlink, - .rename = posix_rename, - .link = posix_link, - .truncate = posix_truncate, - .create = posix_create, - .open = posix_open, - .readv = posix_readv, - .writev = posix_writev, - .statfs = posix_statfs, - .flush = posix_flush, - .fsync = posix_fsync, - .setxattr = posix_setxattr, - .fsetxattr = posix_fsetxattr, - .getxattr = posix_getxattr, - .fgetxattr = posix_fgetxattr, - .removexattr = posix_removexattr, - .fremovexattr = posix_fremovexattr, - .fsyncdir = posix_fsyncdir, - .access = posix_access, - .ftruncate = posix_ftruncate, - .fstat = posix_fstat, - .lk = posix_lk, - .inodelk = posix_inodelk, - .finodelk = posix_finodelk, - .entrylk = posix_entrylk, - .fentrylk = posix_fentrylk, - .rchecksum = posix_rchecksum, - .xattrop = posix_xattrop, - .fxattrop = posix_fxattrop, - .setattr = posix_setattr, - .fsetattr = posix_fsetattr, - .fallocate = _posix_fallocate, - .discard = posix_discard, + .lookup = posix_lookup, + .stat = posix_stat, + .opendir = posix_opendir, + .readdir = posix_readdir, + .readdirp = posix_readdirp, + .readlink = posix_readlink, + .mknod = posix_mknod, + .mkdir = posix_mkdir, + .unlink = posix_unlink, + .rmdir = posix_rmdir, + .symlink = posix_symlink, + .rename = posix_rename, + .link = posix_link, + .truncate = posix_truncate, + .create = posix_create, + .open = posix_open, + .readv = posix_readv, + .writev = posix_writev, + .statfs = posix_statfs, + .flush = posix_flush, + .fsync = posix_fsync, + .setxattr = posix_setxattr, + .fsetxattr = posix_fsetxattr, + .getxattr = posix_getxattr, + .fgetxattr = posix_fgetxattr, + .removexattr = posix_removexattr, + .fremovexattr = posix_fremovexattr, + .fsyncdir = posix_fsyncdir, + .access = posix_access, + .ftruncate = posix_ftruncate, + .fstat = posix_fstat, + .lk = posix_lk, + .inodelk = posix_inodelk, + .finodelk = posix_finodelk, + .entrylk = posix_entrylk, + .fentrylk = posix_fentrylk, + .rchecksum = posix_rchecksum, + .xattrop = posix_xattrop, + .fxattrop = posix_fxattrop, + .setattr = posix_setattr, + .fsetattr = posix_fsetattr, + .fallocate = posix_glfallocate, + .discard = posix_discard, + .zerofill = posix_zerofill, + .ipc = posix_ipc, + .seek = posix_seek, + .lease = posix_lease, + .put = posix_put, + .copy_file_range = posix_copy_file_range, }; struct xlator_cbks cbks = { - .release = posix_release, - .releasedir = posix_releasedir, - .forget = posix_forget + .release = posix_release, + .releasedir = posix_releasedir, + .forget = posix_forget, }; -struct volume_options options[] = { - { .key = {"o-direct"}, - .type = GF_OPTION_TYPE_BOOL }, - { .key = {"directory"}, - .type = GF_OPTION_TYPE_PATH }, - { .key = {"hostname"}, - .type = GF_OPTION_TYPE_ANY }, - { .key = {"export-statfs-size"}, - .type = GF_OPTION_TYPE_BOOL }, - { .key = {"mandate-attribute"}, - .type = GF_OPTION_TYPE_BOOL }, - { .key = {"background-unlink"}, - .type = GF_OPTION_TYPE_BOOL }, - { .key = {"janitor-sleep-duration"}, - .type = GF_OPTION_TYPE_INT }, - { .key = {"volume-id"}, - .type = GF_OPTION_TYPE_ANY }, - { .key = {"glusterd-uuid"}, - .type = GF_OPTION_TYPE_STR }, - { - .key = {"linux-aio"}, - .type = GF_OPTION_TYPE_BOOL, - .default_value = "off", - .description = "Support for native Linux AIO" - }, - { - .key = {"brick-uid"}, - .type = GF_OPTION_TYPE_INT, - .min = 0, - .validate = GF_OPT_VALIDATE_MIN, - .description = "Support for setting uid of brick's owner" - }, - { - .key = {"brick-gid"}, - .type = GF_OPTION_TYPE_INT, - .min = 0, - .validate = GF_OPT_VALIDATE_MIN, - .description = "Support for setting gid of brick's owner" - }, - { .key = {"node-uuid-pathinfo"}, - .type = GF_OPTION_TYPE_BOOL, - .default_value = "off", - .description = "return glusterd's node-uuid in pathinfo xattr" - " string instead of hostname" - }, - { - .key = {"health-check-interval"}, - .type = GF_OPTION_TYPE_INT, - .min = 0, - .default_value = "30", - .validate = GF_OPT_VALIDATE_MIN, - .description = "Interval in seconds for a filesystem health check, " - "set to 0 to disable" - }, - { .key = {"batch-fsync-mode"}, - .type = GF_OPTION_TYPE_STR, - .default_value = "reverse-fsync", - .description = "Possible values:\n" - "\t- syncfs: Perform one syncfs() on behalf oa batch" - "of fsyncs.\n" - "\t- syncfs-single-fsync: Perform one syncfs() on behalf of a batch" - " of fsyncs and one fsync() per batch.\n" - "\t- syncfs-reverse-fsync: Preform one syncfs() on behalf of a batch" - " of fsyncs and fsync() each file in the batch in reverse order.\n" - " in reverse order.\n" - "\t- reverse-fsync: Perform fsync() of each file in the batch in" - " reverse order." - }, - { .key = {"batch-fsync-delay-usec"}, - .type = GF_OPTION_TYPE_INT, - .default_value = "0", - .description = "Num of usecs to wait for aggregating fsync" - " requests", - }, - { .key = {NULL} } +xlator_api_t xlator_api = { + .init = posix_init, + .fini = posix_fini, + .notify = posix_notify, + .reconfigure = posix_reconfigure, + .mem_acct_init = mem_acct_init, + .op_version = {1}, /* Present from the initial version */ + .dumpops = &dumpops, + .fops = &fops, + .cbks = &cbks, + .options = posix_options, + .identifier = "posix", + .category = GF_MAINTAINED, }; |