blob: 7a374c521f2b20ab54b5b9560b9f9988034080be [file] [log] [blame]
/*
* Copyright (c) 2016 Jeff Mahoney <jeffm@suse.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "defs.h"
#include <linux/fs.h>
#ifdef HAVE_LINUX_BTRFS_H
/*
* Prior to Linux 3.12, the BTRFS_IOC_DEFAULT_SUBVOL used u64 in
* its definition, which isn't exported by the kernel.
*/
typedef __u64 u64;
#include <linux/btrfs.h>
#ifndef HAVE_STRUCT_BTRFS_IOCTL_FEATURE_FLAGS_COMPAT_FLAGS
struct btrfs_ioctl_feature_flags {
uint64_t compat_flags;
uint64_t compat_ro_flags;
uint64_t incompat_flags;
};
#endif
#ifndef HAVE_STRUCT_BTRFS_IOCTL_DEFRAG_RANGE_ARGS_START
struct btrfs_ioctl_defrag_range_args {
uint64_t start;
uint64_t len;
uint64_t flags;
uint32_t extent_thresh;
uint32_t compress_type;
uint32_t unused[4];
};
#endif
#ifndef BTRFS_SUBVOL_NAME_MAX
#define BTRFS_SUBVOL_NAME_MAX 4039
#endif
#ifndef BTRFS_LABEL_SIZE
#define BTRFS_LABEL_SIZE 256
#endif
#ifndef BTRFS_FIRST_FREE_OBJECTID
#define BTRFS_FIRST_FREE_OBJECTID 256ULL
#endif
#ifndef BTRFS_IOC_GET_FEATURES
#define BTRFS_IOC_GET_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
struct btrfs_ioctl_feature_flags)
#define BTRFS_IOC_SET_FEATURES _IOW(BTRFS_IOCTL_MAGIC, 57, \
struct btrfs_ioctl_feature_flags[2])
#define BTRFS_IOC_GET_SUPPORTED_FEATURES _IOR(BTRFS_IOCTL_MAGIC, 57, \
struct btrfs_ioctl_feature_flags[3])
#endif
#ifndef BTRFS_IOC_TREE_SEARCH_V2
#define BTRFS_IOC_TREE_SEARCH_V2 _IOWR(BTRFS_IOCTL_MAGIC, 17, \
struct btrfs_ioctl_search_args_v2)
struct btrfs_ioctl_search_args_v2 {
struct btrfs_ioctl_search_key key; /* in/out - search parameters */
uint64_t buf_size; /* in - size of buffer
* out - on EOVERFLOW: needed size
* to store item */
uint64_t buf[0]; /* out - found items */
};
#endif
#include "xlat/btrfs_balance_args.h"
#include "xlat/btrfs_balance_ctl_cmds.h"
#include "xlat/btrfs_balance_flags.h"
#include "xlat/btrfs_balance_state.h"
#include "xlat/btrfs_compress_types.h"
#include "xlat/btrfs_defrag_flags.h"
#include "xlat/btrfs_dev_replace_cmds.h"
#include "xlat/btrfs_dev_replace_results.h"
#include "xlat/btrfs_dev_replace_state.h"
#include "xlat/btrfs_dev_stats_flags.h"
#include "xlat/btrfs_dev_stats_values.h"
#include "xlat/btrfs_features_compat.h"
#include "xlat/btrfs_features_compat_ro.h"
#include "xlat/btrfs_features_incompat.h"
#include "xlat/btrfs_key_types.h"
#include "xlat/btrfs_qgroup_ctl_cmds.h"
#include "xlat/btrfs_qgroup_inherit_flags.h"
#include "xlat/btrfs_qgroup_limit_flags.h"
#include "xlat/btrfs_qgroup_status_flags.h"
#include "xlat/btrfs_scrub_flags.h"
#include "xlat/btrfs_send_flags.h"
#include "xlat/btrfs_snap_flags_v2.h"
#include "xlat/btrfs_space_info_flags.h"
#include "xlat/btrfs_tree_objectids.h"
static inline char
prnibble(char v)
{
if (v >= 10)
return 'a' + (v - 10);
return '0' + v;
}
/* 8-4-4-4-12 = 36 characters */
#define UUID_STRING_SIZE 36
/* Formats uuid, returns 0 if it's all zeroes */
static int
btrfs_unparse_uuid(unsigned char *uuid, char *out)
{
int i;
int ret = 0;
for (i = 0; i < BTRFS_UUID_SIZE; i++) {
if (i == 4 || i == 6 || i == 8 || i == 10)
*out++ = '-';
*out++ = prnibble(uuid[i] >> 4);
*out++ = prnibble(uuid[i] & 0xf);
if (uuid[i])
ret = 1;
}
*out = '\0';
return ret;
}
static void
print_u64(const char *name, uint64_t value)
{
tprintf(", %s=%" PRIu64, name, value);
if (value == UINT64_MAX)
tprints(" /* UINT64_MAX */");
}
#define print_member_u64(obj, name) print_u64(#name, obj->name)
static void
btrfs_print_balance_args(const char *name, struct btrfs_balance_args *bba)
{
tprintf(", %s={profiles=", name);
printflags64(btrfs_space_info_flags, bba->profiles,
"BTRFS_BLOCK_GROUP_???");
print_member_u64(bba, usage);
print_member_u64(bba, devid);
print_member_u64(bba, pstart);
print_member_u64(bba, pend);
print_member_u64(bba, vstart);
print_member_u64(bba, vend);
print_member_u64(bba, target);
tprints(", flags=");
printflags64(btrfs_balance_args, bba->flags, "BTRFS_BALANCE_ARGS_???");
tprints("}");
}
static void
btrfs_print_balance(struct tcb *tcp, const long arg, bool out)
{
struct btrfs_ioctl_balance_args balance_args;
if (umove_or_printaddr(tcp, arg, &balance_args))
return;
tprints("{flags=");
printflags64(btrfs_balance_flags, balance_args.flags,
"BTRFS_BALANCE_???");
if (out) {
tprints(", state=");
printflags64(btrfs_balance_state, balance_args.state,
"BTRFS_BALANCE_STATE_???");
}
if (balance_args.flags & BTRFS_BALANCE_DATA)
btrfs_print_balance_args("data", &balance_args.data);
if (balance_args.flags & BTRFS_BALANCE_METADATA)
btrfs_print_balance_args("meta", &balance_args.meta);
if (balance_args.flags & BTRFS_BALANCE_SYSTEM)
btrfs_print_balance_args("sys", &balance_args.sys);
tprints("}");
}
static void
btrfs_print_features(struct btrfs_ioctl_feature_flags *flags)
{
tprints("{compat_flags=");
printflags64(btrfs_features_compat, flags->compat_flags,
"BTRFS_FEATURE_COMPAT_???");
tprints(", compat_ro_flags=");
printflags64(btrfs_features_compat_ro, flags->compat_ro_flags,
"BTRFS_FEATURE_COMPAT_RO_???");
tprints(", incompat_flags=");
printflags64(btrfs_features_incompat, flags->incompat_flags,
"BTRFS_FEATURE_INCOMPAT_???");
tprints("}");
}
static void
btrfs_print_qgroup_limit(struct btrfs_qgroup_limit *lim)
{
tprints("{flags=");
printflags64(btrfs_qgroup_limit_flags, lim->flags,
"BTRFS_QGROUP_LIMIT_???");
tprintf(", max_rfer=%" PRI__u64 ", max_excl=%" PRI__u64
", rsv_rfer=%" PRI__u64 ", rsv_excl=%" PRI__u64 "}",
lim->max_rfer, lim->max_excl,
lim->rsv_rfer, lim->rsv_excl);
}
static void
btrfs_print_key_type(uint32_t type)
{
const char *str = xlookup(btrfs_key_types, type);
tprintf("%u", type);
if (str)
tprintf(" /* %s */", str);
}
static void
btrfs_print_objectid(uint64_t objectid)
{
const char *str = xlookup(btrfs_tree_objectids, objectid);
tprintf("%" PRIu64, objectid);
if (str)
tprintf(" /* %s */", str);
}
static void
btrfs_print_data_container_header(struct btrfs_data_container *container)
{
tprintf("{bytes_left=%u, bytes_missing=%u, "
"elem_cnt=%u, elem_missed=%u, val=",
container->bytes_left, container->bytes_missing,
container->elem_cnt, container->elem_missed);
}
static void
btrfs_print_data_container_footer(void)
{
tprints("}");
}
static uint64_t
data_container_record_offset(unsigned int index)
{
return offsetof(struct btrfs_data_container, val[index]);
}
static void
btrfs_print_logical_ino_container(struct tcb *tcp, uint64_t inodes_addr)
{
struct btrfs_data_container container;
uint32_t i;
uint32_t printed = 0;
if (umoven_or_printaddr(tcp, inodes_addr,
sizeof(container), &container))
return;
btrfs_print_data_container_header(&container);
if (abbrev(tcp)) {
tprints("...");
btrfs_print_data_container_footer();
return;
}
tprints("[");
for (i = 0; i < container.elem_cnt; i += 3, printed++) {
uint64_t offset = data_container_record_offset(i);
uint64_t record[3];
if (i)
tprints(", ");
if (printed > max_strlen ||
umoven(tcp, inodes_addr + offset, sizeof(record), record)) {
tprints("...");
break;
}
tprintf("{inum=%" PRIu64 ", offset=%" PRIu64
", root=%" PRIu64 "}", record[0], record[1], record[2]);
}
tprints("]");
btrfs_print_data_container_footer();
}
static void
btrfs_print_ino_path_container(struct tcb *tcp, uint64_t fspath_addr)
{
struct btrfs_data_container container;
uint32_t i;
if (umoven_or_printaddr(tcp, fspath_addr,
sizeof(container), &container))
return;
btrfs_print_data_container_header(&container);
if (abbrev(tcp)) {
tprints("...");
btrfs_print_data_container_footer();
return;
}
tprints("[");
for (i = 0; i < container.elem_cnt; i++) {
uint64_t offset = data_container_record_offset(i);
uint64_t ptr;
if (i)
tprints(", ");
if (i > max_strlen ||
umoven(tcp, fspath_addr + offset, sizeof(ptr), &ptr)) {
tprints("...");
break;
}
printpath(tcp,
fspath_addr + data_container_record_offset(0) + ptr);
}
tprints("]");
btrfs_print_data_container_footer();
}
static void
btrfs_print_qgroup_inherit(struct tcb *tcp, uint64_t qgi_addr)
{
struct btrfs_qgroup_inherit inherit;
if (umoven_or_printaddr(tcp, qgi_addr, sizeof(inherit), &inherit) < 0)
return;
tprintf("{flags=");
printflags64(btrfs_qgroup_inherit_flags, inherit.flags,
"BTRFS_QGROUP_INHERIT_???");
tprintf(", num_qgroups=%" PRI__u64 ", num_ref_copies=%" PRI__u64
", num_excl_copies=%" PRI__u64 ", lim=",
inherit.num_qgroups, inherit.num_ref_copies,
inherit.num_excl_copies);
btrfs_print_qgroup_limit(&inherit.lim);
tprints(", qgroups=");
if (abbrev(tcp)) {
tprints("...");
} else {
uint32_t i;
tprints("[");
for (i = 0; i < inherit.num_qgroups; i++) {
uint64_t offset = offsetof(typeof(inherit), qgroups[i]);
uint64_t record;
if (i)
tprints(", ");
if (i > max_strlen ||
umoven(tcp, qgi_addr + offset,
sizeof(record), &record)) {
tprints("...");
break;
}
tprintf("%" PRIu64, record);
}
tprints("]");
}
tprints("}");
}
static void
print_key_value_internal(struct tcb *tcp, const char *name, uint64_t value)
{
if (value) {
tprintf(", %s=%" PRIu64, name, value);
if (value == UINT64_MAX)
tprints(" /* UINT64_MAX */");
}
}
#define print_key_value(tcp, key, name) \
print_key_value_internal((tcp), #name, (key)->name)
static void
btrfs_print_tree_search(struct tcb *tcp, struct btrfs_ioctl_search_key *key,
uint64_t buf_addr, uint64_t buf_size, bool print_size)
{
if (entering(tcp)) {
tprintf("{key={tree_id=");
btrfs_print_objectid(key->tree_id);
if (key->min_objectid != BTRFS_FIRST_FREE_OBJECTID ||
!abbrev(tcp)) {
tprints(", min_objectid=");
btrfs_print_objectid(key->min_objectid);
}
if (key->max_objectid != BTRFS_LAST_FREE_OBJECTID ||
!abbrev(tcp)) {
tprints(", max_objectid=");
btrfs_print_objectid(key->max_objectid);
}
print_key_value(tcp, key, min_offset);
print_key_value(tcp, key, max_offset);
print_key_value(tcp, key, min_transid);
print_key_value(tcp, key, max_transid);
tprints(", min_type=");
btrfs_print_key_type(key->min_type);
tprints(", max_type=");
btrfs_print_key_type(key->max_type);
tprintf(", nr_items=%u}", key->nr_items);
if (print_size)
tprintf(", buf_size=%" PRIu64, buf_size);
tprints("}");
return;
}
tprintf("{key={nr_items=%u}", key->nr_items);
if (print_size)
tprintf(", buf_size=%" PRIu64, buf_size);
tprints(", buf=");
if (abbrev(tcp))
tprints("...");
else {
uint64_t i;
uint64_t off = 0;
tprints("[");
for (i = 0; i < key->nr_items; i++) {
struct btrfs_ioctl_search_header sh;
uint64_t addr = buf_addr + off;
if (i)
tprints(", ");
if (i > max_strlen ||
umoven(tcp, addr, sizeof(sh), &sh)) {
tprints("...");
break;
}
tprintf("{transid=%" PRI__u64 ", objectid=",
sh.transid);
btrfs_print_objectid(sh.objectid);
tprintf(", offset=%" PRI__u64 ", type=", sh.offset);
btrfs_print_key_type(sh.type);
tprintf(", len=%u}", sh.len);
off += sizeof(sh) + sh.len;
}
tprints("]");
}
tprints("}");
}
int
btrfs_ioctl(struct tcb *tcp, const unsigned int code, const long arg)
{
int ret = 0;
switch (code) {
/* Take no arguments; Command only. */
case BTRFS_IOC_TRANS_START:
case BTRFS_IOC_TRANS_END:
case BTRFS_IOC_SYNC:
case BTRFS_IOC_SCRUB_CANCEL:
case BTRFS_IOC_QUOTA_RESCAN_WAIT:
/*
* The codes for these ioctls are based on each accepting a
* vol_args but none of them actually consume an argument.
*/
case BTRFS_IOC_DEFRAG:
case BTRFS_IOC_BALANCE:
break;
/* take a signed int */
case BTRFS_IOC_BALANCE_CTL: {
tprints(", ");
printxvals(arg, "BTRFS_BALANCE_CTL_???",
btrfs_balance_ctl_cmds, NULL);
break;
}
/* returns a 64 */
case BTRFS_IOC_START_SYNC: /* R */
if (entering(tcp))
return 0;
/* fallthrough */
/* take a u64 */
case BTRFS_IOC_DEFAULT_SUBVOL: /* W */
case BTRFS_IOC_WAIT_SYNC: /* W */
tprints(", ");
printnum_int64(tcp, arg, "%" PRIu64);
break;
/* u64 but describe a flags bitfield; We can make that symbolic */
case BTRFS_IOC_SUBVOL_GETFLAGS: { /* R */
uint64_t flags;
if (entering(tcp))
return 0;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &flags))
break;
printflags64(btrfs_snap_flags_v2, flags, "BTRFS_SUBVOL_???");
break;
}
case BTRFS_IOC_SUBVOL_SETFLAGS: { /* W */
uint64_t flags;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &flags))
break;
printflags64(btrfs_snap_flags_v2, flags, "BTRFS_SUBVOL_???");
break;
}
/* More complex types */
case BTRFS_IOC_BALANCE_V2: /* RW */
if (entering(tcp)) {
tprints(", ");
btrfs_print_balance(tcp, arg, false);
return 0;
}
if (syserror(tcp))
break;
tprints(" => ");
btrfs_print_balance(tcp, arg, true);
break;
case BTRFS_IOC_BALANCE_PROGRESS: /* R */
if (entering(tcp))
return 0;
tprints(", ");
btrfs_print_balance(tcp, arg, true);
break;
case BTRFS_IOC_DEFRAG_RANGE: {/* W */
struct btrfs_ioctl_defrag_range_args args;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprintf("{start=%" PRIu64 ", len=", (uint64_t)args.start);
tprintf("%" PRIu64, args.len);
if (args.len == UINT64_MAX)
tprints(" /* UINT64_MAX */");
tprints(", flags=");
printflags64(btrfs_defrag_flags, args.flags,
"BTRFS_DEFRAG_RANGE_???");
tprintf(", extent_thresh=%u, compress_type=",
args.extent_thresh);
printxvals(args.compress_type, "BTRFS_COMPRESS_???",
btrfs_compress_types, NULL);
tprints("}");
break;
}
case BTRFS_IOC_DEV_INFO: { /* RW */
struct btrfs_ioctl_dev_info_args args;
char uuid[UUID_STRING_SIZE+1];
int valid;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprints("{");
valid = btrfs_unparse_uuid(args.uuid, uuid);
if (entering(tcp)) {
tprintf("devid=%" PRI__u64, args.devid);
if (valid)
tprintf(", uuid=%s", uuid);
tprints("}");
return 0;
}
if (valid)
tprintf("uuid=%s, ", uuid);
tprintf("bytes_used=%" PRI__u64 ", "
"total_bytes=%" PRI__u64 ", path=",
args.bytes_used, args.total_bytes);
print_quoted_string((const char *)args.path, sizeof(args.path),
QUOTE_0_TERMINATED);
tprints("}");
break;
}
case BTRFS_IOC_DEV_REPLACE: { /* RW */
struct btrfs_ioctl_dev_replace_args args;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
if (entering(tcp)) {
tprints("{cmd=");
printxvals(args.cmd, "BTRFS_IOCTL_DEV_REPLACE_CMD_???",
btrfs_dev_replace_cmds, NULL);
if (args.cmd == BTRFS_IOCTL_DEV_REPLACE_CMD_START) {
const char *str;
tprintf(", start={srcdevid=%" PRI__u64 ", "
"cont_reading_from_srcdev_mode=%" PRI__u64
", srcdev_name=",
args.start.srcdevid,
args.start.cont_reading_from_srcdev_mode);
str = (const char*) args.start.srcdev_name;
print_quoted_string(str,
sizeof(args.start.srcdev_name),
QUOTE_0_TERMINATED);
tprints(", tgtdev_name=");
str = (const char*) args.start.tgtdev_name;
print_quoted_string(str,
sizeof(args.start.tgtdev_name),
QUOTE_0_TERMINATED);
tprints("}");
}
tprints("}");
return 0;
}
tprints("{result=");
printxvals(args.result, "BTRFS_IOCTL_DEV_REPLACE_RESULT_???",
btrfs_dev_replace_results, NULL);
if (args.cmd == BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS) {
char buf[sizeof("HH:MM:SS") + 1];
time_t time;
tprints(", ");
printxvals(args.status.replace_state,
"BTRFS_IOCTL_DEV_REPLACE_STATE_???",
btrfs_dev_replace_state, NULL);
tprintf(", progress_1000=%" PRI__u64 " /* ",
args.status.progress_1000);
if (args.status.progress_1000 <= 1000)
tprintf("%" PRI__u64 ".%.2" PRI__u64 "%%",
args.status.progress_1000 / 10,
args.status.progress_1000 % 10);
else
tprints("???");
tprints(" */ ,");
time = args.status.time_started;
strftime(buf, sizeof(buf), "%T",
localtime(&time));
tprintf("time_started=%" PRI__u64" /* %s */, ",
args.status.time_started, buf);
time = args.status.time_stopped;
strftime(buf, sizeof(buf), "%T",
localtime(&time));
tprintf("time_stopped=%" PRI__u64" /* %s */, ",
args.status.time_stopped, buf);
tprintf("num_write_errors=%" PRI__u64 ", "
"num_uncorrectable_read_errors=%" PRI__u64,
args.status.num_write_errors,
args.status.num_uncorrectable_read_errors);
}
tprints("}");
break;
}
case BTRFS_IOC_GET_FEATURES: { /* R */
struct btrfs_ioctl_feature_flags flags;
if (entering(tcp))
return 0;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &flags))
break;
btrfs_print_features(&flags);
break;
}
case BTRFS_IOC_SET_FEATURES: { /* W */
struct btrfs_ioctl_feature_flags flarg[2];
tprints(", ");
if (umove_or_printaddr(tcp, arg, &flarg))
break;
tprints("[");
btrfs_print_features(&flarg[0]);
tprints(", ");
btrfs_print_features(&flarg[1]);
tprints("]");
break;
}
case BTRFS_IOC_GET_SUPPORTED_FEATURES: { /* R */
struct btrfs_ioctl_feature_flags flarg[3];
if (entering(tcp))
return 0;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &flarg))
break;
tprints("[ /* supported */ ");
btrfs_print_features(&flarg[0]);
tprints(", /* safe to set */ ");
btrfs_print_features(&flarg[1]);
tprints(", /* safe to clear */ ");
btrfs_print_features(&flarg[2]);
tprints("]");
break;
}
case BTRFS_IOC_FS_INFO: { /* R */
struct btrfs_ioctl_fs_info_args args;
char uuid[UUID_STRING_SIZE+1];
uint32_t nodesize, sectorsize, clone_alignment;
#ifndef HAVE_STRUCT_BTRFS_IOCTL_FS_INFO_ARGS_NODESIZE
__u32 *reserved32;
#endif
if (entering(tcp))
return 0;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
#ifdef HAVE_STRUCT_BTRFS_IOCTL_FS_INFO_ARGS_NODESIZE
nodesize = args.nodesize,
sectorsize = args.sectorsize,
clone_alignment = args.clone_alignment;
#else
reserved32 = (__u32 *)args.reserved;
nodesize = reserved32[0];
sectorsize = reserved32[1];
clone_alignment = reserved32[2];
#endif
btrfs_unparse_uuid(args.fsid, uuid);
tprints("{");
tprintf("max_id=%" PRI__u64 ", num_devices=%" PRI__u64 ", "
"fsid=%s, nodesize=%u, sectorsize=%u, "
"clone_alignment=%u",
args.max_id, args.num_devices, uuid,
nodesize, sectorsize, clone_alignment);
tprints("}");
break;
}
case BTRFS_IOC_GET_DEV_STATS: { /* RW */
struct btrfs_ioctl_get_dev_stats args;
uint64_t i, max_nr_items;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprints("{");
if (entering(tcp))
tprintf("devid=%" PRI__u64 ", ", args.devid);
tprintf("nr_items=%" PRI__u64 ", flags=", args.nr_items);
printflags64(btrfs_dev_stats_flags, args.flags,
"BTRFS_DEV_STATS_???");
if (entering(tcp)) {
tprints("}");
return 0;
}
/*
* The structure has a 1k limit; Let's make sure we don't
* go off into the middle of nowhere with a bad nr_items
* value.
*/
max_nr_items = sizeof(args) - offsetof(typeof(args), values);
tprints(", [");
for (i = 0; i < args.nr_items; i++) {
const char *name = xlookup(btrfs_dev_stats_values, i);
if (i)
tprints(", ");
if (i > max_nr_items) {
tprints("/* overflow */");
break;
}
if (name)
tprintf("/* %s */ ", name);
tprintf("%" PRI__u64, args.values[i]);
}
tprints("]}");
break;
}
case BTRFS_IOC_INO_LOOKUP: { /* RW */
struct btrfs_ioctl_ino_lookup_args args;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
if (entering(tcp)) {
/* Use subvolume id of the containing root */
if (args.treeid == 0)
/* abuse of auxstr to retain state */
tcp->auxstr = (void *)1;
else
tcp->auxstr = NULL;
tprints("{treeid=");
btrfs_print_objectid(args.treeid);
tprints(", objectid=");
btrfs_print_objectid(args.objectid);
tprints("}");
return 0;
}
tprints("{");
if (tcp->auxstr) {
tprints("treeid=");
btrfs_print_objectid(args.treeid);
tprints(", ");
}
tcp->auxstr = NULL;
tprints("name=");
print_quoted_string(args.name, sizeof(args.name),
QUOTE_0_TERMINATED);
tprints("}");
break;
}
case BTRFS_IOC_INO_PATHS: { /* RW */
struct btrfs_ioctl_ino_path_args args;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprints("{");
if (entering(tcp)) {
tprintf("inum=%" PRI__u64 ", size=%" PRI__u64,
args.inum, args.size);
tprintf(", fspath=0x%" PRI__x64 "}", args.fspath);
return 0;
}
tprints("fspath=");
btrfs_print_ino_path_container(tcp, args.fspath);
tprints("}");
break;
}
case BTRFS_IOC_LOGICAL_INO: { /* RW */
struct btrfs_ioctl_logical_ino_args args;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprints("{");
if (entering(tcp)) {
tprintf("logical=%" PRI__u64 ", size=%" PRI__u64,
args.logical, args.size);
tprintf(", inodes=0x%" PRI__x64 "}", args.inodes);
return 0;
}
tprints("inodes=");
btrfs_print_logical_ino_container(tcp, args.inodes);
tprints("}");
break;
}
case BTRFS_IOC_QGROUP_ASSIGN: { /* W */
struct btrfs_ioctl_qgroup_assign_args args;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprintf("{assign=%" PRI__u64 ", src=%" PRI__u64
", dst=%" PRI__u64 "}",
args.assign, args.src, args.dst);
break;
}
case BTRFS_IOC_QGROUP_CREATE: { /* W */
struct btrfs_ioctl_qgroup_create_args args;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprintf("{create=%" PRI__u64 ", qgroupid=%" PRI__u64 "}",
args.create, args.qgroupid);
break;
}
case BTRFS_IOC_QGROUP_LIMIT: { /* R */
struct btrfs_ioctl_qgroup_limit_args args;
if (entering(tcp))
return 0;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprintf("{qgroupid=%" PRI__u64 ", lim=", args.qgroupid);
btrfs_print_qgroup_limit(&args.lim);
tprints("}");
break;
}
case BTRFS_IOC_QUOTA_CTL: { /* W */
struct btrfs_ioctl_quota_ctl_args args;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
printxvals(args.cmd, "BTRFS_QUOTA_CTL_???",
btrfs_qgroup_ctl_cmds, NULL);
tprints("}");
break;
}
case BTRFS_IOC_QUOTA_RESCAN: { /* W */
struct btrfs_ioctl_quota_rescan_args args;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprintf("{flags=%" PRI__u64 "}", args.flags);
break;
}
case BTRFS_IOC_QUOTA_RESCAN_STATUS: { /* R */
struct btrfs_ioctl_quota_rescan_args args;
if (entering(tcp))
return 0;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprintf("{flags=%" PRI__u64 ", progress=", args.flags);
btrfs_print_objectid(args.progress);
tprints("}");
break;
}
case BTRFS_IOC_SET_RECEIVED_SUBVOL: { /* RW */
#ifdef BTRFS_IOC_SET_RECEIVED_SUBVOL_32
case BTRFS_IOC_SET_RECEIVED_SUBVOL_32: { /* RW */
struct btrfs_ioctl_received_subvol_args_32 args32;
#endif
struct btrfs_ioctl_received_subvol_args args;
char uuid[UUID_STRING_SIZE+1];
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
#ifdef BTRFS_IOC_SET_RECEIVED_SUBVOL_32
/*
* This is a compat ioctl for 32 bit tools on
* 64 bit systems.
*/
if (code == BTRFS_IOC_SET_RECEIVED_SUBVOL_32) {
if (umove_or_printaddr(tcp, arg, &args32))
break;
memcpy(args.uuid, args32.uuid, sizeof(uuid));
args.stransid = args32.stransid;
args.rtransid = args32.rtransid;
args.stime.sec = args32.stime.sec;
args.stime.nsec = args32.stime.nsec;
args.rtime.sec = args32.rtime.sec;
args.rtime.nsec = args32.rtime.nsec;
args.flags = args32.flags;
} else
#endif
if (umove_or_printaddr(tcp, arg, &args))
break;
if (entering(tcp)) {
btrfs_unparse_uuid((unsigned char *)args.uuid, uuid);
tprintf("{uuid=%s, stransid=%" PRI__u64
", stime=%" PRI__u64 ".%u, flags=%" PRI__u64
"}", uuid, args.stransid, args.stime.sec,
args.stime.nsec, args.flags);
return 0;
}
tprintf("{rtransid=%" PRI__u64 ", rtime=%" PRI__u64 ".%u}",
args.rtransid, args.rtime.sec, args.rtime.nsec);
break;
}
case BTRFS_IOC_SCRUB: /* RW */
case BTRFS_IOC_SCRUB_PROGRESS: { /* RW */
struct btrfs_ioctl_scrub_args args;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
if (entering(tcp)) {
tprintf("{devid=%" PRI__u64, args.devid);
if (code == BTRFS_IOC_SCRUB) {
tprintf(", start=%" PRI__u64 ", end=",
args.start);
tprintf("%" PRI__u64, args.end);
if (args.end == UINT64_MAX)
tprints(" /* UINT64_MAX */");
tprints(", flags=");
printflags64(btrfs_scrub_flags, args.flags,
"BTRFS_SCRUB_???");
}
tprints("}");
return 0;
}
tprintf("{data_extents_scrubbed=%" PRI__u64 ", "
"tree_extents_scrubbed=%" PRI__u64 ", "
"data_bytes_scrubbed=%" PRI__u64 ", "
"tree_bytes_scrubbed=%" PRI__u64 ", "
"read_errors=%" PRI__u64 ", "
"csum_errors=%" PRI__u64 ", "
"verify_errors=%" PRI__u64 ", "
"no_csum=%" PRI__u64 ", "
"csum_discards=%" PRI__u64 ", "
"super_errors=%" PRI__u64 ", "
"malloc_errors=%" PRI__u64 ", "
"uncorrectable_errors=%" PRI__u64 ", "
"corrected_errors=%" PRI__u64 ", "
"last_physical=%" PRI__u64 ", "
"unverified_errors=%" PRI__u64 "}",
args.progress.data_extents_scrubbed,
args.progress.tree_extents_scrubbed,
args.progress.data_bytes_scrubbed,
args.progress.tree_bytes_scrubbed,
args.progress.read_errors,
args.progress.csum_errors,
args.progress.verify_errors,
args.progress.no_csum,
args.progress.csum_discards,
args.progress.super_errors,
args.progress.malloc_errors,
args.progress.uncorrectable_errors,
args.progress.corrected_errors,
args.progress.last_physical,
args.progress.unverified_errors);
break;
}
case BTRFS_IOC_TREE_SEARCH: { /* RW */
struct btrfs_ioctl_search_args args;
uint64_t buf_offset;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
buf_offset = offsetof(struct btrfs_ioctl_search_args, buf);
btrfs_print_tree_search(tcp, &args.key, arg + buf_offset,
sizeof(args.buf), false);
if (entering(tcp))
return 0;
break;
}
case BTRFS_IOC_TREE_SEARCH_V2: { /* RW */
struct btrfs_ioctl_search_args_v2 args;
uint64_t buf_offset;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp)) {
if (tcp->u_error == EOVERFLOW) {
tcp->u_error = 0;
if (!umove_or_printaddr(tcp, arg, &args))
tprintf(" => {buf_size=%" PRIu64 "}",
(uint64_t)args.buf_size);
tcp->u_error = EOVERFLOW;
}
break;
} else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
buf_offset = offsetof(struct btrfs_ioctl_search_args_v2, buf);
btrfs_print_tree_search(tcp, &args.key, arg + buf_offset,
args.buf_size, true);
if (entering(tcp))
return 0;
break;
}
case BTRFS_IOC_SEND: { /* W */
struct btrfs_ioctl_send_args args;
uint64_t base_addr;
uint64_t i;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprintf("{send_fd=%" PRI__d64 ", clone_sources_count=%" PRI__u64
", clone_sources=", args.send_fd,
args.clone_sources_count);
if (abbrev(tcp)) {
tprints("...");
} else {
tprints("[");
base_addr = (unsigned long)args.clone_sources;
for (i = 0; i < args.clone_sources_count; i++) {
uint64_t offset = sizeof(uint64_t) * i;
uint64_t record;
if (i)
tprints(", ");
if (i > max_strlen ||
umoven(tcp, base_addr + offset,
sizeof(record), &record)) {
tprints("...");
break;
}
btrfs_print_objectid(record);
}
tprints("]");
}
tprints(", parent_root=");
btrfs_print_objectid(args.parent_root);
tprints(", flags=");
printflags64(btrfs_send_flags, args.flags,
"BTRFS_SEND_FLAGS_???");
tprints("}");
break;
}
case BTRFS_IOC_SPACE_INFO: { /* RW */
struct btrfs_ioctl_space_args args;
uint64_t i;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprints("{");
if (entering(tcp)) {
tprintf("space_slots=%" PRI__u64 "}",
args.space_slots);
return 0;
}
tprintf("total_spaces=%" PRI__u64, args.total_spaces);
if (args.space_slots == 0 && args.total_spaces) {
tprints("}");
break;
}
tprints(", spaces=");
if (abbrev(tcp)) {
tprints("...}");
break;
}
tprints("[");
for (i = 0; i < args.total_spaces; i++) {
struct btrfs_ioctl_space_info info;
uint64_t off = offsetof(typeof(args), spaces[i]);
if (i)
tprints(", ");
if (i > max_strlen ||
umoven(tcp, arg + off, sizeof(info), &info)) {
tprints("...");
break;
}
tprints("{flags=");
printflags64(btrfs_space_info_flags, info.flags,
"BTRFS_SPACE_INFO_???");
tprintf(", total_bytes=%" PRI__u64
", used_bytes=%" PRI__u64 "}",
info.total_bytes, info.used_bytes);
}
tprints("]}");
break;
}
case BTRFS_IOC_SNAP_CREATE:
case BTRFS_IOC_RESIZE:
case BTRFS_IOC_SCAN_DEV:
case BTRFS_IOC_ADD_DEV:
case BTRFS_IOC_RM_DEV:
case BTRFS_IOC_SUBVOL_CREATE:
case BTRFS_IOC_SNAP_DESTROY:
case BTRFS_IOC_DEVICES_READY: { /* W */
struct btrfs_ioctl_vol_args args;
tprints(", ");
if (umove_or_printaddr(tcp, arg, &args))
break;
tprintf("{fd=%" PRI__d64 ", name=", args.fd);
print_quoted_string(args.name, sizeof(args.name),
QUOTE_0_TERMINATED);
tprints("}");
break;
}
case BTRFS_IOC_SNAP_CREATE_V2:
case BTRFS_IOC_SUBVOL_CREATE_V2: { /* code is W, but is actually RW */
struct btrfs_ioctl_vol_args_v2 args;
if (entering(tcp))
tprints(", ");
else if (syserror(tcp))
break;
else
tprints(" => ");
if (umove_or_printaddr(tcp, arg, &args))
break;
if (entering(tcp)) {
tprintf("{fd=%" PRI__d64 ", flags=", args.fd);
printflags64(btrfs_snap_flags_v2, args.flags,
"BTRFS_SUBVOL_???");
if (args.flags & BTRFS_SUBVOL_QGROUP_INHERIT) {
tprintf(", size=%" PRI__u64 ", qgroup_inherit=",
args.size);
btrfs_print_qgroup_inherit(tcp,
(unsigned long)args.qgroup_inherit);
}
tprintf(", name=");
print_quoted_string(args.name,
BTRFS_SUBVOL_NAME_MAX + 1,
QUOTE_0_TERMINATED);
tprints("}");
return 0;
}
tprintf("{transid=%" PRI__u64 "}", args.transid);
break;
}
case BTRFS_IOC_GET_FSLABEL: /* R */
case BTRFS_IOC_SET_FSLABEL: {/* W */
char label[BTRFS_LABEL_SIZE];
if (code == BTRFS_IOC_GET_FSLABEL && entering(tcp))
return 0;
tprints(", ");
if (umoven_or_printaddr(tcp, arg, sizeof(label), label))
break;
print_quoted_string(label, sizeof(label), QUOTE_0_TERMINATED);
break;
}
case BTRFS_IOC_CLONE: /* FICLONE */
case BTRFS_IOC_CLONE_RANGE: /* FICLONERANGE */
case BTRFS_IOC_FILE_EXTENT_SAME: /* FIDEDUPERANGE */
/*
* FICLONE, FICLONERANGE, and FIDEDUPERANGE started out as
* btrfs ioctls and the code was kept for the generic
* implementations. We use the BTRFS_* names here because
* they will be available on older systems.
*/
return file_ioctl(tcp, code, arg);
default:
return RVAL_DECODED;
};
return ret | RVAL_DECODED | 1;
}
#endif /* HAVE_LINUX_BTRFS_H */