Viewing: llog_reader.c
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
* Use is subject to license terms.
*
* Copyright (c) 2011, 2017, Intel Corporation.
*/
/*
* This file is part of Lustre, http://www.lustre.org/
*/
/** \defgroup llog_reader Lustre Log Reader
*
* Interpret llogs used for storing configuration and changelog data
*
* @{
*/
#include <errno.h>
#include <limits.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/param.h>
#ifdef HAVE_ENDIAN_H
# include <endian.h>
#endif
#include <unistd.h>
#include <fcntl.h>
#include <sys/vfs.h>
#include <linux/magic.h>
#include <errno.h>
#include <time.h>
#include <linux/lnet/nidstr.h>
#include <linux/lustre/lustre_cfg.h>
#include <linux/lustre/lustre_fid.h>
#include <linux/lustre/lustre_ostid.h>
#include <linux/lustre/lustre_log_user.h>
#include <lustre/lustreapi.h>
static inline int ext2_test_bit(int nr, const void *addr)
{
#if __BYTE_ORDER == __BIG_ENDIAN
const unsigned char *tmp = addr;
return (tmp[nr >> 3] >> (nr & 7)) & 1;
#else
const unsigned long *tmp = addr;
return ((1UL << (nr & (__WORDSIZE - 1))) &
((tmp)[nr / __WORDSIZE])) != 0;
#endif
}
int llog_pack_buffer(int fd, struct llog_log_hdr **llog_buf,
struct llog_rec_hdr ***recs, int *recs_number);
void print_llog_header(struct llog_log_hdr *llog_buf);
static void print_records(struct llog_rec_hdr **recs_buf,
int rec_number, int is_ext);
void llog_unpack_buffer(int fd, struct llog_log_hdr *llog_buf,
struct llog_rec_hdr **recs_buf);
#define CANCELLED 0x678
#define PTL_CMD_BASE 100
char *portals_command[17] = {
"REGISTER_PEER_FD",
"CLOSE_CONNECTION",
"REGISTER_MYNID",
"PUSH_CONNECTION",
"GET_CONN",
"DEL_PEER",
"ADD_PEER",
"GET_PEER",
"GET_TXDESC",
"ADD_ROUTE",
"DEL_ROUTE",
"GET_ROUTE",
"NOTIFY_ROUTER",
"ADD_INTERFACE",
"DEL_INTERFACE",
"GET_INTERFACE",
""
};
static int is_fstype_ext(int fd)
{
struct statfs st;
int rc;
rc = fstatfs(fd, &st);
if (rc < 0) {
llapi_error(LLAPI_MSG_ERROR, rc, "Got statfs error.");
return -errno;
}
return (st.f_type == EXT4_SUPER_MAGIC);
}
/*
* Attempt to display a path to the object (file) containing changelog entries,
* referred to by this changelog_catalog record.
*
* This path depends on the implementation of the OSD device; zfs-osd and
* ldiskfs-osd are different.
*
* Assumes that if the file system containing the changelog_catalog is
* ext{2,3,4}, the backend is ldiskfs-osd; otherwise it is either zfs-osd or at
* least names objects based on FID and the zfs-osd path (which includes the
* FID) will be sufficient.
*
* The Object ID stored in the record is also displayed untranslated.
*/
#define OSD_OI_FID_NR (1UL << 7)
static void print_log_path(struct llog_logid_rec *lid, int is_ext)
{
char object_path[255];
struct lu_fid fid_from_logid;
logid_to_fid(&lid->lid_id, &fid_from_logid);
/**
* Llogs with regular llog SEQ such as FID_SEQ_LLOG and
* FID_SEQ_LLOG_NAME are stored under O/ directory but
* update llogs are using normal FIDs and stored under
* 'update_log_dir' directory with FID format name
* Distinguish them by FID sequence
*/
if (fid_from_logid.f_seq != FID_SEQ_LLOG &&
fid_from_logid.f_seq != FID_SEQ_LLOG_NAME)
snprintf(object_path, sizeof(object_path),
"update_log_dir/"DFID, PFID(&fid_from_logid));
else if (is_ext)
snprintf(object_path, sizeof(object_path),
"O/%ju/d%u/%u", (uintmax_t)fid_from_logid.f_seq,
fid_from_logid.f_oid % 32,
fid_from_logid.f_oid);
else
snprintf(object_path, sizeof(object_path),
"oi.%ju/"DFID_NOBRACE,
(uintmax_t)(fid_from_logid.f_seq &
(OSD_OI_FID_NR - 1)),
PFID(&fid_from_logid));
printf("fid="DFID" path=%s\n", PFID(&fid_from_logid),
object_path);
}
int main(int argc, char **argv)
{
int rc = 0;
int is_ext;
int fd, rec_number;
struct llog_log_hdr *llog_buf = NULL;
struct llog_rec_hdr **recs_buf = NULL;
setlinebuf(stdout);
if (argc != 2) {
printf("Usage: llog_reader filename\n");
return -1;
}
fd = open(argv[1], O_RDONLY);
if (fd < 0) {
rc = -errno;
llapi_error(LLAPI_MSG_ERROR, rc, "Could not open the file %s.",
argv[1]);
goto out;
}
is_ext = is_fstype_ext(fd);
if (is_ext < 0) {
rc = is_ext;
llapi_error(LLAPI_MSG_ERROR, -rc,
"Unable to determine filesystem type for %s",
argv[1]);
goto out_fd;
}
rc = llog_pack_buffer(fd, &llog_buf, &recs_buf, &rec_number);
if (rc < 0) {
llapi_error(LLAPI_MSG_ERROR, rc, "Could not pack buffer.");
goto out_fd;
}
if (llog_buf)
print_llog_header(llog_buf);
if (recs_buf)
print_records(recs_buf, rec_number, is_ext);
llog_unpack_buffer(fd, llog_buf, recs_buf);
out_fd:
close(fd);
out:
return rc;
}
int llog_pack_buffer(int fd, struct llog_log_hdr **llog,
struct llog_rec_hdr ***recs,
int *recs_number)
{
ssize_t rd = 0;
ssize_t nbytes;
int rc = 0, recs_num;
long long file_size;
struct stat st;
char *file_buf = NULL, *recs_buf = NULL;
struct llog_rec_hdr **recs_pr = NULL;
char *ptr = NULL;
int count, errors = 0;
int i, last_idx;
*recs = NULL;
*recs_number = 0;
rc = fstat(fd, &st);
if (rc < 0) {
rc = -errno;
llapi_error(LLAPI_MSG_ERROR, rc, "Got file stat error.");
return rc;
}
file_size = st.st_size;
if (file_size < sizeof(**llog)) {
llapi_error(LLAPI_MSG_ERROR, rc,
"File too small for llog header: want=%zd got=%lld",
sizeof(**llog), file_size);
rc = -EIO;
return rc;
}
file_buf = malloc(file_size);
if (!file_buf) {
rc = -ENOMEM;
llapi_error(LLAPI_MSG_ERROR, rc, "Memory Alloc for file_buf.");
return rc;
}
*llog = (struct llog_log_hdr *)file_buf;
do {
nbytes = read(fd, file_buf + rd, file_size - rd);
if (nbytes > 0)
rd += nbytes;
} while (nbytes > 0 && rd < file_size);
if (rd < file_size) {
rc = rc < 0 ? -errno : -EIO;
llapi_error(LLAPI_MSG_ERROR, rc,
"Error reading llog header: need %zd, got %zd",
sizeof(**llog), rd);
goto clear_file_buf;
}
count = __le32_to_cpu((*llog)->llh_count);
if (count < 0) {
rc = -EINVAL;
llapi_error(LLAPI_MSG_ERROR, rc,
"corrupted llog: negative record number %d",
count);
goto clear_file_buf;
} else if (count == 0) {
llapi_printf(LLAPI_MSG_NORMAL,
"uninitialized llog: zero record number\n");
goto clear_file_buf;
}
/* the llog header not countable here.*/
recs_num = count - 1;
if (recs_num == 0)
return 0;
recs_buf = calloc(recs_num, sizeof(**recs_pr));
if (!recs_buf) {
rc = -ENOMEM;
llapi_error(LLAPI_MSG_ERROR, rc,
"Error allocating %zd bytes for recs_buf",
recs_num * sizeof(**recs_pr));
goto clear_file_buf;
}
recs_pr = (struct llog_rec_hdr **)recs_buf;
ptr = file_buf + __le32_to_cpu((*llog)->llh_hdr.lrh_len);
i = 0;
last_idx = 0;
while (ptr < (file_buf + file_size)) {
struct llog_rec_hdr *cur_rec;
struct llog_rec_tail *cur_tail;
unsigned int idx, len, tail_idx, tail_len;
unsigned long offset;
offset = (unsigned long)ptr - (unsigned long)file_buf;
if (offset + sizeof(**recs_pr) > file_size) {
printf("error: rec header is trimmed by EOF, last idx #%d offset %lu\n",
last_idx, offset);
errors++;
break;
}
cur_rec = (struct llog_rec_hdr *)ptr;
idx = __le32_to_cpu(cur_rec->lrh_index);
len = __le32_to_cpu(cur_rec->lrh_len);
if (len == 0 || len + offset % (*llog)->llh_hdr.lrh_len >
(*llog)->llh_hdr.lrh_len) {
printf("error: rec #%d type=%x has wrong len=%u @%lu\n",
idx, cur_rec->lrh_type, len, offset);
errors++;
len = (*llog)->llh_hdr.lrh_len -
offset % (*llog)->llh_hdr.lrh_len;
printf("skip %u bytes to the next chunk at off %lu.\n",
len, offset + len);
ptr += len;
continue;
}
if (ext2_test_bit(idx, LLOG_HDR_BITMAP(*llog))) {
printf("rec #%d type=%x len=%u offset %lu\n", idx,
cur_rec->lrh_type, len, offset);
recs_pr[i] = cur_rec;
i++;
} else {
cur_rec->lrh_id = CANCELLED;
if (cur_rec->lrh_type == LLOG_PAD_MAGIC &&
((offset + len) & 0x7) != 0) {
printf("error: rec #%d wrong padding len=%u offset %lu to 0x%lx\n",
idx, len, offset, offset + len);
errors++;
}
/* The header counts only set records */
}
cur_tail = (struct llog_rec_tail *)(ptr + len - sizeof(*cur_tail));
tail_idx = __le32_to_cpu(cur_tail->lrt_index);
tail_len = __le32_to_cpu(cur_tail->lrt_len);
if (idx != tail_idx || len != tail_len) {
printf("error: rec #%d len=%u has tail #%d len=%u%s\n",
idx, len, tail_idx, tail_len,
cur_rec->lrh_id == CANCELLED ? " (unset)" : "");
errors++;
}
if (idx > last_idx + 1)
printf("error: rec #%d len=%u has gap in %d recs\n",
idx, len, idx - last_idx);
while (++last_idx < idx) {
printf("error: -> rec #%d is lost%s set in bitmap\n",
last_idx,
ext2_test_bit(last_idx, LLOG_HDR_BITMAP(*llog)) ?
" but" : ", not");
errors++;
}
/* index may decrease only when crosses index zero in catalog */
if (last_idx > idx && idx != 1) {
printf("error: rec #%d index is less than last #%d\n",
idx, last_idx);
errors++;
last_idx = idx;
}
ptr += len;
if ((ptr - file_buf) > file_size) {
printf("error: rec #%d is trimmed by EOF, offset %lu\n",
idx, offset);
errors++;
break;
}
}
while (++last_idx < LLOG_HDR_BITMAP_SIZE((*llog))) {
if (ext2_test_bit(last_idx, LLOG_HDR_BITMAP(*llog))) {
printf("error: rec #%d is set in bitmap only\n",
last_idx);
errors++;
}
}
if (i != recs_num)
printf("error: header reports %d records but %d were found\n",
recs_num, i);
/* don't set rc to output what was found */
if (errors)
llapi_error(LLAPI_MSG_NO_ERRNO, 0,
"The llog is corrupted, %d errors found", errors);
*recs = recs_pr;
/* don't try to output more recs than was found or allocated */
*recs_number = i > recs_num ? recs_num : i;
return 0;
clear_file_buf:
free(file_buf);
*llog = NULL;
return rc;
}
void llog_unpack_buffer(int fd, struct llog_log_hdr *llog_buf,
struct llog_rec_hdr **recs_buf)
{
if (llog_buf)
free(llog_buf);
if (recs_buf)
free(recs_buf);
}
void print_llog_header(struct llog_log_hdr *llog_buf)
{
time_t t;
unsigned int lrh_len = __le32_to_cpu(llog_buf->llh_hdr.lrh_len);
struct llog_rec_tail *tail = ((struct llog_rec_tail *)((char *)llog_buf+
lrh_len - sizeof(llog_buf->llh_tail)));
printf("Header size : %u\t llh_size : %u\n", lrh_len,
__le32_to_cpu(llog_buf->llh_size));
t = __le64_to_cpu(llog_buf->llh_timestamp);
printf("Time : %s", ctime(&t));
printf("Number of records: %u\tcat_idx: %u\tlast_idx: %u\n",
__le32_to_cpu(llog_buf->llh_count)-1,
__le32_to_cpu(llog_buf->llh_cat_idx),
__le32_to_cpu(tail->lrt_index));
printf("Flags: %#x\n", __le32_to_cpu(llog_buf->llh_flags));
printf("Target uuid : %s\n",
(char *)(&llog_buf->llh_tgtuuid));
/* Add the other info you want to view here */
printf("-----------------------\n");
}
static void print_1_cfg(struct lustre_cfg *lcfg)
{
int i;
if (lcfg->lcfg_nid)
printf("nid=%s(%#jx) ", libcfs_nid2str(lcfg->lcfg_nid),
(uintmax_t)lcfg->lcfg_nid);
if (lcfg->lcfg_nal)
printf("nal=%d ", lcfg->lcfg_nal);
for (i = 0; i < lcfg->lcfg_bufcount; i++)
printf("%d:%.*s ", i, lcfg->lcfg_buflens[i],
(char *)lustre_cfg_buf(lcfg, i));
}
static char *lustre_cfg_string(struct lustre_cfg *lcfg, __u32 index)
{
char *s;
if (lcfg->lcfg_buflens[index] == 0)
return NULL;
s = lustre_cfg_buf(lcfg, index);
if (!s)
return NULL;
/*
* make sure it's NULL terminated, even if this kills a char
* of data. Try to use the padding first though.
*/
if (s[lcfg->lcfg_buflens[index] - 1] != '\0') {
size_t last = __ALIGN_KERNEL(lcfg->lcfg_buflens[index], 8) - 1;
char lost;
/* Use the smaller value */
if (last > lcfg->lcfg_buflens[index])
last = lcfg->lcfg_buflens[index];
lost = s[last];
s[last] = '\0';
if (lost != '\0') {
fprintf(stderr,
"Truncated buf %d to '%s' (lost '%c'...)\n",
index, s, lost);
}
}
return s;
}
static void print_setup_cfg(struct lustre_cfg *lcfg)
{
struct lov_desc *desc;
if ((lcfg->lcfg_bufcount == 2) &&
(lcfg->lcfg_buflens[1] == sizeof(*desc))) {
printf("lov_setup ");
printf("0:%s ", lustre_cfg_string(lcfg, 0));
printf("1:(struct lov_desc)\n");
desc = (struct lov_desc *)(lustre_cfg_string(lcfg, 1));
printf("\t\tuuid=%s ", (char *)desc->ld_uuid.uuid);
printf("stripe:cnt=%u ", desc->ld_default_stripe_count);
printf("size=%ju ", (uintmax_t)desc->ld_default_stripe_size);
printf("offset=%ju ",
(uintmax_t)desc->ld_default_stripe_offset);
printf("pattern=%#x", desc->ld_pattern);
} else {
printf("setup ");
print_1_cfg(lcfg);
}
}
static void print_lustre_cfg(struct lustre_cfg *lcfg, int *skip)
{
enum lcfg_command_type cmd = __le32_to_cpu(lcfg->lcfg_command);
if (*skip > 0)
printf("SKIP ");
switch (cmd) {
case(LCFG_ATTACH):{
printf("attach ");
print_1_cfg(lcfg);
break;
}
case(LCFG_SETUP):{
print_setup_cfg(lcfg);
break;
}
case(LCFG_DETACH):{
printf("detach ");
print_1_cfg(lcfg);
break;
}
case(LCFG_CLEANUP):{
printf("cleanup ");
print_1_cfg(lcfg);
break;
}
case(LCFG_ADD_UUID):{
printf("add_uuid ");
print_1_cfg(lcfg);
break;
}
case(LCFG_DEL_UUID):{
printf("del_uuid ");
print_1_cfg(lcfg);
break;
}
case(LCFG_ADD_CONN):{
printf("add_conn ");
print_1_cfg(lcfg);
break;
}
case(LCFG_DEL_CONN):{
printf("del_conn ");
print_1_cfg(lcfg);
break;
}
case(LCFG_LOV_ADD_OBD):{
printf("lov_modify_tgts add ");
print_1_cfg(lcfg);
break;
}
case(LCFG_LOV_DEL_OBD):{
printf("lov_modify_tgts del ");
print_1_cfg(lcfg);
break;
}
case(LCFG_ADD_MDC):{
printf("modify_mdc_tgts add ");
print_1_cfg(lcfg);
break;
}
case(LCFG_DEL_MDC):{
printf("modify_mdc_tgts del ");
print_1_cfg(lcfg);
break;
}
case(LCFG_MOUNTOPT):{
printf("mount_option ");
print_1_cfg(lcfg);
break;
}
case(LCFG_DEL_MOUNTOPT):{
printf("del_mount_option ");
print_1_cfg(lcfg);
break;
}
case(LCFG_SET_TIMEOUT):{
printf("set_timeout=%d ", lcfg->lcfg_num);
break;
}
case(LCFG_SET_LDLM_TIMEOUT):{
printf("set_ldlm_timeout=%d ", lcfg->lcfg_num);
break;
}
case(LCFG_SET_UPCALL):{
printf("set_lustre_upcall ");
print_1_cfg(lcfg);
break;
}
case(LCFG_PARAM):{
printf("param ");
print_1_cfg(lcfg);
break;
}
case(LCFG_SET_PARAM):{
printf("set_param ");
print_1_cfg(lcfg);
break;
}
case(LCFG_SPTLRPC_CONF):{
printf("sptlrpc_conf ");
print_1_cfg(lcfg);
break;
}
case(LCFG_MARKER):{
struct cfg_marker *marker = lustre_cfg_buf(lcfg, 1);
char createtime[26], canceltime[26] = "";
time_t time_tmp;
if (marker->cm_flags & CM_START &&
marker->cm_flags & CM_SKIP) {
printf("SKIP START ");
(*skip)++;
} else if (marker->cm_flags & CM_END) {
printf("END ");
*skip = 0;
}
if (marker->cm_flags & CM_EXCLUDE) {
if (marker->cm_flags & CM_START)
printf("EXCLUDE START ");
else
printf("EXCLUDE END ");
}
/*
* Handle overflow of 32-bit time_t gracefully.
* The copy to time_tmp is needed in any case to
* keep the pointer happy, even on 64-bit systems.
*/
time_tmp = marker->cm_createtime;
if (time_tmp == marker->cm_createtime) {
ctime_r(&time_tmp, createtime);
createtime[strlen(createtime) - 1] = 0;
} else {
strcpy(createtime, "in the distant future");
}
if (marker->cm_canceltime) {
/*
* Like cm_createtime, we try to handle overflow of
* 32-bit time_t gracefully. The copy to time_tmp
* is also needed on 64-bit systems to keep the
* pointer happy, see bug 16771
*/
time_tmp = marker->cm_canceltime;
if (time_tmp == marker->cm_canceltime) {
ctime_r(&time_tmp, canceltime);
canceltime[strlen(canceltime) - 1] = 0;
} else {
strcpy(canceltime, "in the distant future");
}
}
printf("marker %3d (flags=%#04x, v%d.%d.%d.%d) %-15s '%s' %s-%s",
marker->cm_step, marker->cm_flags,
OBD_OCD_VERSION_MAJOR(marker->cm_vers),
OBD_OCD_VERSION_MINOR(marker->cm_vers),
OBD_OCD_VERSION_PATCH(marker->cm_vers),
OBD_OCD_VERSION_FIX(marker->cm_vers),
marker->cm_tgtname, marker->cm_comment,
createtime, canceltime);
break;
}
case(LCFG_POOL_NEW):{
printf("pool new ");
print_1_cfg(lcfg);
break;
}
case(LCFG_POOL_ADD):{
printf("pool add ");
print_1_cfg(lcfg);
break;
}
case(LCFG_POOL_REM):{
printf("pool remove ");
print_1_cfg(lcfg);
break;
}
case(LCFG_POOL_DEL):{
printf("pool destroy ");
print_1_cfg(lcfg);
break;
}
default:
printf("unsupported cmd_code = %x\n", cmd);
}
printf("\n");
}
static void print_hsm_action(struct llog_agent_req_rec *larr)
{
char buf[12];
int sz;
sz = larr->arr_hai.hai_len - sizeof(larr->arr_hai);
printf("lrh=[type=%X len=%d idx=%d] fid="DFID" compound/cookie=%#llx/%#llx status=%s action=%s archive#=%d flags=%#llx create=%llu change=%llu extent=%#llx-%#llx gid=%#llx datalen=%d data=[%s]\n",
larr->arr_hdr.lrh_type,
larr->arr_hdr.lrh_len, larr->arr_hdr.lrh_index,
PFID(&larr->arr_hai.hai_fid),
(unsigned long long)larr->arr_compound_id,
(unsigned long long)larr->arr_hai.hai_cookie,
agent_req_status2name(larr->arr_status),
hsm_copytool_action2name(larr->arr_hai.hai_action),
larr->arr_archive_id,
(unsigned long long)larr->arr_flags,
(unsigned long long)larr->arr_req_create,
(unsigned long long)larr->arr_req_change,
(unsigned long long)larr->arr_hai.hai_extent.offset,
(unsigned long long)larr->arr_hai.hai_extent.length,
(unsigned long long)larr->arr_hai.hai_gid, sz,
hai_dump_data_field(&larr->arr_hai, buf, sizeof(buf)));
}
static void print_changelog_rec(struct llog_changelog_rec *rec)
{
__u32 crf = __le32_to_cpu(rec->cr.cr_flags);
time_t secs;
struct tm ts;
secs = __le64_to_cpu(rec->cr.cr_time) >> 30;
gmtime_r(&secs, &ts);
printf("changelog record id:0x%x index:%llu cr_flags:0x%x cr_type:%s(0x%x) date:'%02d:%02d:%02d.%09d %04d.%02d.%02d' target:"DFID,
__le32_to_cpu(rec->cr_hdr.lrh_id),
(unsigned long long)__le64_to_cpu(rec->cr.cr_index),
crf, changelog_type2str(__le32_to_cpu(rec->cr.cr_type)),
__le32_to_cpu(rec->cr.cr_type),
ts.tm_hour, ts.tm_min, ts.tm_sec,
(int)(__le64_to_cpu(rec->cr.cr_time) & ((1 << 30) - 1)),
ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
PFID(&rec->cr.cr_tfid));
if (crf & CLF_JOBID) {
struct changelog_ext_jobid *jid =
changelog_rec_jobid(&rec->cr);
if (jid->cr_jobid[0] != '\0')
printf(" jobid:%s", jid->cr_jobid);
}
if (crf & CLF_EXTRA_FLAGS) {
struct changelog_ext_extra_flags *ef =
changelog_rec_extra_flags(&rec->cr);
unsigned long long cref = __le64_to_cpu(ef->cr_extra_flags);
printf(" cr_extra_flags:0x%llx", cref);
if (cref & CLFE_UIDGID) {
struct changelog_ext_uidgid *uidgid =
changelog_rec_uidgid(&rec->cr);
printf(" user:%u:%u",
__le32_to_cpu(uidgid->cr_uid),
__le32_to_cpu(uidgid->cr_gid));
}
if (cref & CLFE_NID) {
if (cref & CLFE_NID_BE) {
struct changelog_ext_nid *cnid =
changelog_rec_nid(&rec->cr);
struct lnet_nid *nid = (void *)cnid;
printf(" nid:%s", libcfs_nidstr(nid));
} else {
struct changelog_ext_nid *nid =
changelog_rec_nid(&rec->cr);
printf(" nid:%s",
libcfs_nid2str(nid->cr_nid));
}
}
if (cref & CLFE_OPEN) {
struct changelog_ext_openmode *omd =
changelog_rec_openmode(&rec->cr);
char mode[] = "---";
/* exec mode must be exclusive */
if (__le32_to_cpu(omd->cr_openflags) & MDS_FMODE_EXEC) {
mode[2] = 'x';
} else {
if (__le32_to_cpu(omd->cr_openflags) &
MDS_FMODE_READ)
mode[0] = 'r';
if (__le32_to_cpu(omd->cr_openflags) &
(MDS_FMODE_WRITE | MDS_OPEN_TRUNC | MDS_OPEN_APPEND))
mode[1] = 'w';
}
if (strcmp(mode, "---") != 0)
printf(" mode:%s", mode);
}
if (cref & CLFE_XATTR) {
struct changelog_ext_xattr *xattr =
changelog_rec_xattr(&rec->cr);
if (xattr->cr_xattr[0] != '\0')
printf(" xattr:%s", xattr->cr_xattr);
}
}
if (rec->cr.cr_namelen)
printf(" parent:"DFID" name:%.*s", PFID(&rec->cr.cr_pfid),
__le32_to_cpu(rec->cr.cr_namelen),
changelog_rec_name(&rec->cr));
if (crf & CLF_RENAME) {
struct changelog_ext_rename *rnm =
changelog_rec_rename(&rec->cr);
if (!fid_is_zero(&rnm->cr_sfid))
printf(" source_fid:"DFID" source_parent_fid:"DFID
" %.*s",
PFID(&rnm->cr_sfid),
PFID(&rnm->cr_spfid),
(int)__le32_to_cpu(
changelog_rec_snamelen(&rec->cr)),
changelog_rec_sname(&rec->cr));
}
printf("\n");
}
static void lustre_swab_lu_fid(struct lu_fid *fid)
{
fid->f_seq = __swab64(fid->f_seq);
fid->f_oid = __swab32(fid->f_oid);
fid->f_ver = __swab32(fid->f_ver);
}
static inline size_t
update_op_size(unsigned int param_count)
{
return offsetof(struct update_op, uop_params_off[param_count]);
}
static inline struct update_op *
update_op_next_op(const struct update_op *uop)
{
return (struct update_op *)((char *)uop +
update_op_size(uop->uop_param_count));
}
static void lustre_swab_update_ops(struct update_ops *uops,
unsigned int op_count)
{
unsigned int i;
unsigned int j;
struct update_op *op =
(struct update_op *)((char *)&uops->uops_op[0]);
for (i = 0; i < op_count; i++, op = update_op_next_op(op)) {
lustre_swab_lu_fid(&op->uop_fid);
op->uop_type = __swab16(op->uop_type);
op->uop_param_count = __swab16(op->uop_param_count);
for (j = 0; j < op->uop_param_count; j++)
op->uop_params_off[j] = __swab16(op->uop_params_off[j]);
}
}
static const char *update_op_str(__u16 opc)
{
static const char *opc_str[] = {
[OUT_START] = "start",
[OUT_CREATE] = "create",
[OUT_DESTROY] = "destroy",
[OUT_REF_ADD] = "ref_add",
[OUT_REF_DEL] = "ref_del",
[OUT_ATTR_SET] = "attr_set",
[OUT_ATTR_GET] = "attr_get",
[OUT_XATTR_SET] = "xattr_set",
[OUT_XATTR_GET] = "xattr_get",
[OUT_XATTR_LIST] = "xattr_list",
[OUT_INDEX_LOOKUP] = "lookup",
[OUT_INDEX_INSERT] = "insert",
[OUT_INDEX_DELETE] = "delete",
[OUT_WRITE] = "write",
[OUT_XATTR_DEL] = "xattr_del",
[OUT_PUNCH] = "punch",
[OUT_READ] = "read",
[OUT_NOOP] = "noop",
};
if (opc < (sizeof(opc_str) / sizeof((opc_str)[0])) &&
opc_str[opc] != NULL)
return opc_str[opc];
else
return "unknown";
}
static char *buf2str(void *buf, unsigned int size)
{
const char *hex = "0123456789ABCDEF";
char *buf_c = buf;
static char string[128];
int i, j = 0;
bool format_hex = false;
if (size > 0 && buf_c[size - 1] == 0)
size--;
for (i = 0; i < size; i++) {
if (buf_c[i] >= 0x20 && buf_c[i] <= 0x7E) {
string[j++] = buf_c[i];
format_hex = false;
} else if (j < sizeof(string) - 6) {
if (!format_hex) {
string[j++] = '\\';
string[j++] = 'x';
format_hex = true;
}
string[j++] = hex[(buf_c[i] >> 4) & 0xF];
string[j++] = hex[buf_c[i] & 0xF];
} else {
break;
}
if (j == sizeof(string) - 2)
break;
}
string[j] = 0;
return string;
}
static inline size_t
object_update_param_size(const struct object_update_param *param)
{
return roundup(sizeof(*param) + param->oup_len, sizeof(__u64));
}
static void print_update_rec(struct llog_update_record *lur)
{
struct update_records *rec = &lur->lur_update_rec;
unsigned int i, j, up_count, pm_count;
struct update_op *op;
struct object_update_param *pm;
up_count = __le32_to_cpu(rec->ur_update_count);
pm_count = __le32_to_cpu(rec->ur_param_count);
printf("updatelog record master_transno:%llu batchid:%llu flags:0x%x u_index:%d u_count:%d p_count:%d\n",
(unsigned long long)__le64_to_cpu(rec->ur_master_transno),
(unsigned long long)__le64_to_cpu(rec->ur_batchid),
__le32_to_cpu(rec->ur_flags),
__le32_to_cpu(rec->ur_index),
up_count,
pm_count);
op = (struct update_op *)((char *)&rec->ur_ops.uops_op[0] + 0);
if (op->uop_type != __le16_to_cpu(op->uop_type))
lustre_swab_update_ops(&rec->ur_ops, up_count);
for (i = 0; i < up_count; i++, op = update_op_next_op(op)) {
printf("\t"DFID" type:%s/%d params:%d ",
PFID(&op->uop_fid), update_op_str(op->uop_type),
op->uop_type, op->uop_param_count);
for (j = 0; j < op->uop_param_count; j++)
printf("p_%d:%d ", j, op->uop_params_off[j]);
printf("\n");
}
pm = (struct object_update_param *) op;
for (i = 0; i < pm_count; i++) {
printf("\tp_%d - %d/%s\n", i, pm->oup_len,
buf2str(pm->oup_buf, pm->oup_len));
pm = (struct object_update_param *)((char *)pm +
object_update_param_size(pm));
}
printf("\n");
}
static void print_unlink_rec(struct llog_unlink_rec *lur)
{
printf("unlink record id:0x%x target %llx:%x:%x\n",
__le32_to_cpu(lur->lur_hdr.lrh_id),
(unsigned long long)__le64_to_cpu(lur->lur_oid),
__le32_to_cpu(lur->lur_oseq),
__le32_to_cpu(lur->lur_count));
}
static void print_unlink64_rec(struct llog_unlink64_rec *lur)
{
printf("unlink64 record id:0x%x target "DFID"\n",
__le32_to_cpu(lur->lur_hdr.lrh_id),
PFID(&lur->lur_fid));
}
static void print_setattr64_rec(struct llog_setattr64_rec *lsr)
{
printf("setattr64 record id:0x%x target "DFID" valid %llx uid %u:%u gid %u:%u\n",
__le32_to_cpu(lsr->lsr_hdr.lrh_id),
PFID(&lsr->lsr_oi.oi_fid),
(unsigned long long)__le64_to_cpu(lsr->lsr_valid),
__le32_to_cpu(lsr->lsr_uid_h),
__le32_to_cpu(lsr->lsr_uid),
__le32_to_cpu(lsr->lsr_gid_h),
__le32_to_cpu(lsr->lsr_gid));
}
static void print_setattr64_rec_v2(struct llog_setattr64_rec_v2 *lsr)
{
printf("setattr64 v2 record id:0x%x target "DFID" valid %llx uid %u:%u gid %u:%u prj %u\n",
__le32_to_cpu(lsr->lsr_hdr.lrh_id),
PFID(&lsr->lsr_oi.oi_fid),
(unsigned long long)__le64_to_cpu(lsr->lsr_valid),
__le32_to_cpu(lsr->lsr_uid_h),
__le32_to_cpu(lsr->lsr_uid),
__le32_to_cpu(lsr->lsr_gid_h),
__le32_to_cpu(lsr->lsr_gid),
__le32_to_cpu(lsr->lsr_projid));
}
static void print_changelog_user_rec(struct llog_changelog_user_rec *rec)
{
struct llog_rec_hdr *lrh = &rec->cur_hdr;
bool is_rec_v2 = (__le32_to_cpu(lrh->lrh_type) == CHANGELOG_USER_REC2);
printf("changelog user record (%s) id:0x%x cur_id:%u cur_endrec:%llu cur_time:%u%s",
is_rec_v2 ? "v2" : "v1",
__le32_to_cpu(lrh->lrh_id),
__le32_to_cpu(rec->cur_id),
__le64_to_cpu(rec->cur_endrec),
__le32_to_cpu(rec->cur_time),
is_rec_v2 ? " " : "\n");
if (is_rec_v2) {
struct llog_changelog_user_rec2 *rec2 = (typeof(rec2)) rec;
printf("cur_mask:0x%08x cur_name:\"%.*s\"\n",
__le32_to_cpu(rec2->cur_mask),
(int) sizeof(rec2->cur_name), rec2->cur_name);
}
}
static void print_records(struct llog_rec_hdr **recs,
int rec_number, int is_ext)
{
__u32 lopt;
int i, skip = 0;
for (i = 0; i < rec_number; i++) {
if (!recs[i]) {
llapi_printf(LLAPI_MSG_NORMAL,
"uninitialized llog record at index %d\n",
i);
break;
}
printf("#%.2d (%.3d)", __le32_to_cpu(recs[i]->lrh_index),
__le32_to_cpu(recs[i]->lrh_len));
lopt = __le32_to_cpu(recs[i]->lrh_type);
if (recs[i]->lrh_id == CANCELLED)
printf("NOT SET ");
switch (lopt) {
case OBD_CFG_REC:
print_lustre_cfg(
(struct lustre_cfg *)((char *)(recs[i]) +
sizeof(struct llog_rec_hdr)), &skip);
break;
case LLOG_PAD_MAGIC:
printf("padding\n");
break;
case LLOG_LOGID_MAGIC:
print_log_path((struct llog_logid_rec *)recs[i],
is_ext);
break;
case HSM_AGENT_REC:
print_hsm_action((struct llog_agent_req_rec *)recs[i]);
break;
case CHANGELOG_REC:
print_changelog_rec((struct llog_changelog_rec *)
recs[i]);
break;
case CHANGELOG_USER_REC:
case CHANGELOG_USER_REC2:
print_changelog_user_rec((struct
llog_changelog_user_rec *)
recs[i]);
break;
case UPDATE_REC:
print_update_rec((struct llog_update_record *)recs[i]);
break;
case MDS_UNLINK_REC:
print_unlink_rec((struct llog_unlink_rec *)recs[i]);
break;
case MDS_UNLINK64_REC:
print_unlink64_rec((struct llog_unlink64_rec *)recs[i]);
break;
case MDS_SETATTR64_REC:
if (__le32_to_cpu(recs[i]->lrh_len) >
sizeof(struct llog_setattr64_rec)) {
print_setattr64_rec_v2(
(struct llog_setattr64_rec_v2 *)recs[i]);
} else {
print_setattr64_rec(
(struct llog_setattr64_rec *)recs[i]);
}
break;
default:
printf("unknown type %x\n", lopt);
break;
}
}
}
/** @} llog_reader */
