mirror of
https://github.com/kdave/btrfs-progs
synced 2025-03-29 22:56:35 +00:00
btrfs-progs: merge props.c to cmds/property.c
The property definitions and handlers are for the command line processing, so merge it with the main source file. Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba
parent
022a560033
commit
50292bc009
2
Makefile
2
Makefile
@ -144,7 +144,7 @@ CHECKER_FLAGS := -include $(check_defs) -D__CHECKER__ \
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-U_FORTIFY_SOURCE -Wdeclaration-after-statement -Wdefault-bitfield-sign
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objects = kernel-shared/dir-item.o \
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kernel-lib/list_sort.o props.o \
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kernel-lib/list_sort.o \
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kernel-shared/ulist.o check/qgroup-verify.o kernel-shared/backref.o \
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common/string-table.o common/task-utils.o \
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kernel-shared/inode.o kernel-shared/file.o common/help.o cmds/receive-dump.o \
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167
cmds/property.c
167
cmds/property.c
@ -21,13 +21,178 @@
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/stat.h>
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#include <sys/xattr.h>
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#include <btrfsutil.h>
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#include "cmds/commands.h"
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#include "cmds/props.h"
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#include "kernel-shared/ctree.h"
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#include "common/open-utils.h"
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#include "common/utils.h"
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#include "common/help.h"
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#define XATTR_BTRFS_PREFIX "btrfs."
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#define XATTR_BTRFS_PREFIX_LEN (sizeof(XATTR_BTRFS_PREFIX) - 1)
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/*
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* Defined as synonyms in attr/xattr.h
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*/
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#ifndef ENOATTR
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#define ENOATTR ENODATA
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#endif
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static int prop_read_only(enum prop_object_type type,
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const char *object,
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const char *name,
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const char *value)
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{
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enum btrfs_util_error err;
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bool read_only;
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if (value) {
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if (!strcmp(value, "true")) {
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read_only = true;
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} else if (!strcmp(value, "false")) {
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read_only = false;
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} else {
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error("invalid value for property: %s", value);
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return -EINVAL;
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}
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err = btrfs_util_set_subvolume_read_only(object, read_only);
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if (err) {
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error_btrfs_util(err);
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return -errno;
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}
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} else {
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err = btrfs_util_get_subvolume_read_only(object, &read_only);
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if (err) {
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error_btrfs_util(err);
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return -errno;
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}
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printf("ro=%s\n", read_only ? "true" : "false");
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}
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return 0;
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}
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static int prop_label(enum prop_object_type type,
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const char *object,
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const char *name,
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const char *value)
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{
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int ret;
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if (value) {
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ret = set_label((char *) object, (char *) value);
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} else {
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char label[BTRFS_LABEL_SIZE];
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ret = get_label((char *) object, label);
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if (!ret)
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fprintf(stdout, "label=%s\n", label);
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}
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return ret;
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}
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static int prop_compression(enum prop_object_type type,
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const char *object,
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const char *name,
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const char *value)
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{
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int ret;
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ssize_t sret;
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int fd = -1;
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DIR *dirstream = NULL;
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char *buf = NULL;
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char *xattr_name = NULL;
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int open_flags = value ? O_RDWR : O_RDONLY;
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fd = open_file_or_dir3(object, &dirstream, open_flags);
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if (fd == -1) {
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ret = -errno;
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error("failed to open %s: %m", object);
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goto out;
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}
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xattr_name = malloc(XATTR_BTRFS_PREFIX_LEN + strlen(name) + 1);
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if (!xattr_name) {
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ret = -ENOMEM;
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goto out;
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}
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memcpy(xattr_name, XATTR_BTRFS_PREFIX, XATTR_BTRFS_PREFIX_LEN);
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memcpy(xattr_name + XATTR_BTRFS_PREFIX_LEN, name, strlen(name));
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xattr_name[XATTR_BTRFS_PREFIX_LEN + strlen(name)] = '\0';
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if (value) {
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if (strcmp(value, "no") == 0 || strcmp(value, "none") == 0)
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value = "";
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sret = fsetxattr(fd, xattr_name, value, strlen(value), 0);
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} else {
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sret = fgetxattr(fd, xattr_name, NULL, 0);
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}
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if (sret < 0) {
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ret = -errno;
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if (ret != -ENOATTR)
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error("failed to %s compression for %s: %m",
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value ? "set" : "get", object);
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else
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ret = 0;
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goto out;
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}
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if (!value) {
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size_t len = sret;
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buf = malloc(len);
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if (!buf) {
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ret = -ENOMEM;
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goto out;
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}
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sret = fgetxattr(fd, xattr_name, buf, len);
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if (sret < 0) {
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ret = -errno;
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error("failed to get compression for %s: %m", object);
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goto out;
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}
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fprintf(stdout, "compression=%.*s\n", (int)len, buf);
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}
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ret = 0;
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out:
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free(xattr_name);
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free(buf);
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if (fd >= 0)
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close_file_or_dir(fd, dirstream);
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return ret;
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}
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const struct prop_handler prop_handlers[] = {
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{
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.name ="ro",
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.desc = "read-only status of a subvolume",
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.read_only = 0,
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.types = prop_object_subvol,
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.handler = prop_read_only
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},
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{
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.name = "label",
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.desc = "label of the filesystem",
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.read_only = 0,
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.types = prop_object_dev | prop_object_root,
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.handler = prop_label
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},
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{
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.name = "compression",
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.desc = "compression algorithm for the file or directory",
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.read_only = 0,
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.types = prop_object_inode,
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.handler = prop_compression
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},
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{NULL, NULL, 0, 0, NULL}
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};
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static const char * const property_cmd_group_usage[] = {
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"btrfs property get/set/list [-t <type>] <object> [<name>] [value]",
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NULL
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193
props.c
193
props.c
@ -1,193 +0,0 @@
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/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/xattr.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <btrfsutil.h>
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#include "kernel-shared/ctree.h"
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#include "cmds/commands.h"
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#include "common/utils.h"
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#include "common/open-utils.h"
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#include "cmds/props.h"
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#define XATTR_BTRFS_PREFIX "btrfs."
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#define XATTR_BTRFS_PREFIX_LEN (sizeof(XATTR_BTRFS_PREFIX) - 1)
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/*
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* Defined as synonyms in attr/xattr.h
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*/
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#ifndef ENOATTR
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#define ENOATTR ENODATA
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#endif
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static int prop_read_only(enum prop_object_type type,
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const char *object,
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const char *name,
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const char *value)
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{
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enum btrfs_util_error err;
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bool read_only;
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if (value) {
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if (!strcmp(value, "true")) {
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read_only = true;
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} else if (!strcmp(value, "false")) {
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read_only = false;
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} else {
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error("invalid value for property: %s", value);
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return -EINVAL;
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}
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err = btrfs_util_set_subvolume_read_only(object, read_only);
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if (err) {
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error_btrfs_util(err);
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return -errno;
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}
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} else {
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err = btrfs_util_get_subvolume_read_only(object, &read_only);
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if (err) {
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error_btrfs_util(err);
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return -errno;
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}
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printf("ro=%s\n", read_only ? "true" : "false");
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}
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return 0;
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}
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static int prop_label(enum prop_object_type type,
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const char *object,
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const char *name,
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const char *value)
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{
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int ret;
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if (value) {
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ret = set_label((char *) object, (char *) value);
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} else {
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char label[BTRFS_LABEL_SIZE];
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ret = get_label((char *) object, label);
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if (!ret)
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fprintf(stdout, "label=%s\n", label);
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}
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return ret;
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}
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static int prop_compression(enum prop_object_type type,
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const char *object,
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const char *name,
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const char *value)
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{
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int ret;
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ssize_t sret;
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int fd = -1;
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DIR *dirstream = NULL;
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char *buf = NULL;
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char *xattr_name = NULL;
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int open_flags = value ? O_RDWR : O_RDONLY;
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fd = open_file_or_dir3(object, &dirstream, open_flags);
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if (fd == -1) {
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ret = -errno;
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error("failed to open %s: %m", object);
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goto out;
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}
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xattr_name = malloc(XATTR_BTRFS_PREFIX_LEN + strlen(name) + 1);
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if (!xattr_name) {
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ret = -ENOMEM;
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goto out;
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}
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memcpy(xattr_name, XATTR_BTRFS_PREFIX, XATTR_BTRFS_PREFIX_LEN);
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memcpy(xattr_name + XATTR_BTRFS_PREFIX_LEN, name, strlen(name));
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xattr_name[XATTR_BTRFS_PREFIX_LEN + strlen(name)] = '\0';
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if (value) {
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if (strcmp(value, "no") == 0 || strcmp(value, "none") == 0)
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value = "";
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sret = fsetxattr(fd, xattr_name, value, strlen(value), 0);
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} else {
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sret = fgetxattr(fd, xattr_name, NULL, 0);
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}
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if (sret < 0) {
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ret = -errno;
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if (ret != -ENOATTR)
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error("failed to %s compression for %s: %m",
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value ? "set" : "get", object);
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else
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ret = 0;
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goto out;
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}
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if (!value) {
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size_t len = sret;
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buf = malloc(len);
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if (!buf) {
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ret = -ENOMEM;
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goto out;
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}
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sret = fgetxattr(fd, xattr_name, buf, len);
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if (sret < 0) {
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ret = -errno;
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error("failed to get compression for %s: %m", object);
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goto out;
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}
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fprintf(stdout, "compression=%.*s\n", (int)len, buf);
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}
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ret = 0;
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out:
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free(xattr_name);
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free(buf);
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if (fd >= 0)
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close_file_or_dir(fd, dirstream);
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return ret;
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}
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const struct prop_handler prop_handlers[] = {
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{
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.name ="ro",
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.desc = "read-only status of a subvolume",
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.read_only = 0,
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.types = prop_object_subvol,
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.handler = prop_read_only
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},
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{
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.name = "label",
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.desc = "label of the filesystem",
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.read_only = 0,
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.types = prop_object_dev | prop_object_root,
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.handler = prop_label
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},
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{
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.name = "compression",
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.desc = "compression algorithm for the file or directory",
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.read_only = 0,
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.types = prop_object_inode,
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.handler = prop_compression
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},
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{NULL, NULL, 0, 0, NULL}
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};
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