| /* |
| * GPL HEADER START |
| * |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 only, |
| * as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License version 2 for more details (a copy is included |
| * in the LICENSE file that accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License |
| * version 2 along with this program; If not, see |
| * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| * |
| * GPL HEADER END |
| */ |
| /* |
| * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
| * Use is subject to license terms. |
| * |
| * Copyright (c) 2012, Intel Corporation. |
| */ |
| /* |
| * This file is part of Lustre, http://www.lustre.org/ |
| * Lustre is a trademark of Sun Microsystems, Inc. |
| * |
| * lustre/obdclass/llog_swab.c |
| * |
| * Swabbing of llog datatypes (from disk or over the wire). |
| * |
| * Author: jacob berkman <jacob@clusterfs.com> |
| */ |
| |
| #define DEBUG_SUBSYSTEM S_LOG |
| |
| |
| #include "../include/lustre_log.h" |
| |
| static void print_llogd_body(struct llogd_body *d) |
| { |
| CDEBUG(D_OTHER, "llogd body: %p\n", d); |
| CDEBUG(D_OTHER, "\tlgd_logid.lgl_oi: "DOSTID"\n", |
| POSTID(&d->lgd_logid.lgl_oi)); |
| CDEBUG(D_OTHER, "\tlgd_logid.lgl_ogen: %#x\n", d->lgd_logid.lgl_ogen); |
| CDEBUG(D_OTHER, "\tlgd_ctxt_idx: %#x\n", d->lgd_ctxt_idx); |
| CDEBUG(D_OTHER, "\tlgd_llh_flags: %#x\n", d->lgd_llh_flags); |
| CDEBUG(D_OTHER, "\tlgd_index: %#x\n", d->lgd_index); |
| CDEBUG(D_OTHER, "\tlgd_saved_index: %#x\n", d->lgd_saved_index); |
| CDEBUG(D_OTHER, "\tlgd_len: %#x\n", d->lgd_len); |
| CDEBUG(D_OTHER, "\tlgd_cur_offset: %#llx\n", d->lgd_cur_offset); |
| } |
| |
| void lustre_swab_lu_fid(struct lu_fid *fid) |
| { |
| __swab64s (&fid->f_seq); |
| __swab32s (&fid->f_oid); |
| __swab32s (&fid->f_ver); |
| } |
| EXPORT_SYMBOL(lustre_swab_lu_fid); |
| |
| void lustre_swab_ost_id(struct ost_id *oid) |
| { |
| if (fid_seq_is_mdt0(oid->oi.oi_seq)) { |
| __swab64s(&oid->oi.oi_id); |
| __swab64s(&oid->oi.oi_seq); |
| } else { |
| lustre_swab_lu_fid(&oid->oi_fid); |
| } |
| } |
| EXPORT_SYMBOL(lustre_swab_ost_id); |
| |
| void lustre_swab_llog_id(struct llog_logid *log_id) |
| { |
| __swab64s(&log_id->lgl_oi.oi.oi_id); |
| __swab64s(&log_id->lgl_oi.oi.oi_seq); |
| __swab32s(&log_id->lgl_ogen); |
| } |
| EXPORT_SYMBOL(lustre_swab_llog_id); |
| |
| void lustre_swab_llogd_body (struct llogd_body *d) |
| { |
| print_llogd_body(d); |
| lustre_swab_llog_id(&d->lgd_logid); |
| __swab32s (&d->lgd_ctxt_idx); |
| __swab32s (&d->lgd_llh_flags); |
| __swab32s (&d->lgd_index); |
| __swab32s (&d->lgd_saved_index); |
| __swab32s (&d->lgd_len); |
| __swab64s (&d->lgd_cur_offset); |
| print_llogd_body(d); |
| } |
| EXPORT_SYMBOL(lustre_swab_llogd_body); |
| |
| void lustre_swab_llogd_conn_body (struct llogd_conn_body *d) |
| { |
| __swab64s (&d->lgdc_gen.mnt_cnt); |
| __swab64s (&d->lgdc_gen.conn_cnt); |
| lustre_swab_llog_id(&d->lgdc_logid); |
| __swab32s (&d->lgdc_ctxt_idx); |
| } |
| EXPORT_SYMBOL(lustre_swab_llogd_conn_body); |
| |
| void lustre_swab_ll_fid(struct ll_fid *fid) |
| { |
| __swab64s (&fid->id); |
| __swab32s (&fid->generation); |
| __swab32s (&fid->f_type); |
| } |
| EXPORT_SYMBOL(lustre_swab_ll_fid); |
| |
| void lustre_swab_lu_seq_range(struct lu_seq_range *range) |
| { |
| __swab64s (&range->lsr_start); |
| __swab64s (&range->lsr_end); |
| __swab32s (&range->lsr_index); |
| __swab32s (&range->lsr_flags); |
| } |
| EXPORT_SYMBOL(lustre_swab_lu_seq_range); |
| |
| void lustre_swab_llog_rec(struct llog_rec_hdr *rec) |
| { |
| struct llog_rec_tail *tail = NULL; |
| |
| __swab32s(&rec->lrh_len); |
| __swab32s(&rec->lrh_index); |
| __swab32s(&rec->lrh_type); |
| __swab32s(&rec->lrh_id); |
| |
| switch (rec->lrh_type) { |
| case OST_SZ_REC: |
| { |
| struct llog_size_change_rec *lsc = |
| (struct llog_size_change_rec *)rec; |
| |
| lustre_swab_ll_fid(&lsc->lsc_fid); |
| __swab32s(&lsc->lsc_ioepoch); |
| tail = &lsc->lsc_tail; |
| break; |
| } |
| case MDS_UNLINK_REC: |
| { |
| struct llog_unlink_rec *lur = (struct llog_unlink_rec *)rec; |
| |
| __swab64s(&lur->lur_oid); |
| __swab32s(&lur->lur_oseq); |
| __swab32s(&lur->lur_count); |
| tail = &lur->lur_tail; |
| break; |
| } |
| case MDS_UNLINK64_REC: |
| { |
| struct llog_unlink64_rec *lur = |
| (struct llog_unlink64_rec *)rec; |
| |
| lustre_swab_lu_fid(&lur->lur_fid); |
| __swab32s(&lur->lur_count); |
| tail = &lur->lur_tail; |
| break; |
| } |
| case CHANGELOG_REC: |
| { |
| struct llog_changelog_rec *cr = (struct llog_changelog_rec*)rec; |
| |
| __swab16s(&cr->cr.cr_namelen); |
| __swab16s(&cr->cr.cr_flags); |
| __swab32s(&cr->cr.cr_type); |
| __swab64s(&cr->cr.cr_index); |
| __swab64s(&cr->cr.cr_prev); |
| __swab64s(&cr->cr.cr_time); |
| lustre_swab_lu_fid(&cr->cr.cr_tfid); |
| lustre_swab_lu_fid(&cr->cr.cr_pfid); |
| if (CHANGELOG_REC_EXTENDED(&cr->cr)) { |
| struct llog_changelog_ext_rec *ext = |
| (struct llog_changelog_ext_rec *)rec; |
| |
| lustre_swab_lu_fid(&ext->cr.cr_sfid); |
| lustre_swab_lu_fid(&ext->cr.cr_spfid); |
| tail = &ext->cr_tail; |
| } else { |
| tail = &cr->cr_tail; |
| } |
| break; |
| } |
| case CHANGELOG_USER_REC: |
| { |
| struct llog_changelog_user_rec *cur = |
| (struct llog_changelog_user_rec*)rec; |
| |
| __swab32s(&cur->cur_id); |
| __swab64s(&cur->cur_endrec); |
| tail = &cur->cur_tail; |
| break; |
| } |
| |
| case HSM_AGENT_REC: { |
| struct llog_agent_req_rec *arr = |
| (struct llog_agent_req_rec *)rec; |
| |
| __swab32s(&arr->arr_hai.hai_len); |
| __swab32s(&arr->arr_hai.hai_action); |
| lustre_swab_lu_fid(&arr->arr_hai.hai_fid); |
| lustre_swab_lu_fid(&arr->arr_hai.hai_dfid); |
| __swab64s(&arr->arr_hai.hai_cookie); |
| __swab64s(&arr->arr_hai.hai_extent.offset); |
| __swab64s(&arr->arr_hai.hai_extent.length); |
| __swab64s(&arr->arr_hai.hai_gid); |
| /* no swabing for opaque data */ |
| /* hai_data[0]; */ |
| break; |
| } |
| |
| case MDS_SETATTR64_REC: |
| { |
| struct llog_setattr64_rec *lsr = |
| (struct llog_setattr64_rec *)rec; |
| |
| lustre_swab_ost_id(&lsr->lsr_oi); |
| __swab32s(&lsr->lsr_uid); |
| __swab32s(&lsr->lsr_uid_h); |
| __swab32s(&lsr->lsr_gid); |
| __swab32s(&lsr->lsr_gid_h); |
| tail = &lsr->lsr_tail; |
| break; |
| } |
| case OBD_CFG_REC: |
| /* these are swabbed as they are consumed */ |
| break; |
| case LLOG_HDR_MAGIC: |
| { |
| struct llog_log_hdr *llh = (struct llog_log_hdr *)rec; |
| |
| __swab64s(&llh->llh_timestamp); |
| __swab32s(&llh->llh_count); |
| __swab32s(&llh->llh_bitmap_offset); |
| __swab32s(&llh->llh_flags); |
| __swab32s(&llh->llh_size); |
| __swab32s(&llh->llh_cat_idx); |
| tail = &llh->llh_tail; |
| break; |
| } |
| case LLOG_LOGID_MAGIC: |
| { |
| struct llog_logid_rec *lid = (struct llog_logid_rec *)rec; |
| |
| lustre_swab_llog_id(&lid->lid_id); |
| tail = &lid->lid_tail; |
| break; |
| } |
| case LLOG_GEN_REC: |
| { |
| struct llog_gen_rec *lgr = (struct llog_gen_rec *)rec; |
| |
| __swab64s(&lgr->lgr_gen.mnt_cnt); |
| __swab64s(&lgr->lgr_gen.conn_cnt); |
| tail = &lgr->lgr_tail; |
| break; |
| } |
| case LLOG_PAD_MAGIC: |
| break; |
| default: |
| CERROR("Unknown llog rec type %#x swabbing rec %p\n", |
| rec->lrh_type, rec); |
| } |
| |
| if (tail) { |
| __swab32s(&tail->lrt_len); |
| __swab32s(&tail->lrt_index); |
| } |
| } |
| EXPORT_SYMBOL(lustre_swab_llog_rec); |
| |
| static void print_llog_hdr(struct llog_log_hdr *h) |
| { |
| CDEBUG(D_OTHER, "llog header: %p\n", h); |
| CDEBUG(D_OTHER, "\tllh_hdr.lrh_index: %#x\n", h->llh_hdr.lrh_index); |
| CDEBUG(D_OTHER, "\tllh_hdr.lrh_len: %#x\n", h->llh_hdr.lrh_len); |
| CDEBUG(D_OTHER, "\tllh_hdr.lrh_type: %#x\n", h->llh_hdr.lrh_type); |
| CDEBUG(D_OTHER, "\tllh_timestamp: %#llx\n", h->llh_timestamp); |
| CDEBUG(D_OTHER, "\tllh_count: %#x\n", h->llh_count); |
| CDEBUG(D_OTHER, "\tllh_bitmap_offset: %#x\n", h->llh_bitmap_offset); |
| CDEBUG(D_OTHER, "\tllh_flags: %#x\n", h->llh_flags); |
| CDEBUG(D_OTHER, "\tllh_size: %#x\n", h->llh_size); |
| CDEBUG(D_OTHER, "\tllh_cat_idx: %#x\n", h->llh_cat_idx); |
| CDEBUG(D_OTHER, "\tllh_tail.lrt_index: %#x\n", h->llh_tail.lrt_index); |
| CDEBUG(D_OTHER, "\tllh_tail.lrt_len: %#x\n", h->llh_tail.lrt_len); |
| } |
| |
| void lustre_swab_llog_hdr (struct llog_log_hdr *h) |
| { |
| print_llog_hdr(h); |
| |
| lustre_swab_llog_rec(&h->llh_hdr); |
| |
| print_llog_hdr(h); |
| } |
| EXPORT_SYMBOL(lustre_swab_llog_hdr); |
| |
| static void print_lustre_cfg(struct lustre_cfg *lcfg) |
| { |
| int i; |
| |
| if (!(libcfs_debug & D_OTHER)) /* don't loop on nothing */ |
| return; |
| CDEBUG(D_OTHER, "lustre_cfg: %p\n", lcfg); |
| CDEBUG(D_OTHER, "\tlcfg->lcfg_version: %#x\n", lcfg->lcfg_version); |
| |
| CDEBUG(D_OTHER, "\tlcfg->lcfg_command: %#x\n", lcfg->lcfg_command); |
| CDEBUG(D_OTHER, "\tlcfg->lcfg_num: %#x\n", lcfg->lcfg_num); |
| CDEBUG(D_OTHER, "\tlcfg->lcfg_flags: %#x\n", lcfg->lcfg_flags); |
| CDEBUG(D_OTHER, "\tlcfg->lcfg_nid: %s\n", libcfs_nid2str(lcfg->lcfg_nid)); |
| |
| CDEBUG(D_OTHER, "\tlcfg->lcfg_bufcount: %d\n", lcfg->lcfg_bufcount); |
| if (lcfg->lcfg_bufcount < LUSTRE_CFG_MAX_BUFCOUNT) |
| for (i = 0; i < lcfg->lcfg_bufcount; i++) |
| CDEBUG(D_OTHER, "\tlcfg->lcfg_buflens[%d]: %d\n", |
| i, lcfg->lcfg_buflens[i]); |
| } |
| |
| void lustre_swab_lustre_cfg(struct lustre_cfg *lcfg) |
| { |
| int i; |
| |
| __swab32s(&lcfg->lcfg_version); |
| |
| if (lcfg->lcfg_version != LUSTRE_CFG_VERSION) { |
| CERROR("not swabbing lustre_cfg version %#x (expecting %#x)\n", |
| lcfg->lcfg_version, LUSTRE_CFG_VERSION); |
| return; |
| } |
| |
| __swab32s(&lcfg->lcfg_command); |
| __swab32s(&lcfg->lcfg_num); |
| __swab32s(&lcfg->lcfg_flags); |
| __swab64s(&lcfg->lcfg_nid); |
| __swab32s(&lcfg->lcfg_bufcount); |
| for (i = 0; i < lcfg->lcfg_bufcount && i < LUSTRE_CFG_MAX_BUFCOUNT; i++) |
| __swab32s(&lcfg->lcfg_buflens[i]); |
| |
| print_lustre_cfg(lcfg); |
| return; |
| } |
| EXPORT_SYMBOL(lustre_swab_lustre_cfg); |
| |
| /* used only for compatibility with old on-disk cfg_marker data */ |
| struct cfg_marker32 { |
| __u32 cm_step; |
| __u32 cm_flags; |
| __u32 cm_vers; |
| __u32 padding; |
| __u32 cm_createtime; |
| __u32 cm_canceltime; |
| char cm_tgtname[MTI_NAME_MAXLEN]; |
| char cm_comment[MTI_NAME_MAXLEN]; |
| }; |
| |
| #define MTI_NAMELEN32 (MTI_NAME_MAXLEN - \ |
| (sizeof(struct cfg_marker) - sizeof(struct cfg_marker32))) |
| |
| void lustre_swab_cfg_marker(struct cfg_marker *marker, int swab, int size) |
| { |
| struct cfg_marker32 *cm32 = (struct cfg_marker32*)marker; |
| |
| if (swab) { |
| __swab32s(&marker->cm_step); |
| __swab32s(&marker->cm_flags); |
| __swab32s(&marker->cm_vers); |
| } |
| if (size == sizeof(*cm32)) { |
| __u32 createtime, canceltime; |
| /* There was a problem with the original declaration of |
| * cfg_marker on 32-bit systems because it used time_t as |
| * a wire protocol structure, and didn't verify this in |
| * wirecheck. We now have to convert the offsets of the |
| * later fields in order to work on 32- and 64-bit systems. |
| * |
| * Fortunately, the cm_comment field has no functional use |
| * so can be sacrificed when converting the timestamp size. |
| * |
| * Overwrite fields from the end first, so they are not |
| * clobbered, and use memmove() instead of memcpy() because |
| * the source and target buffers overlap. bug 16771 */ |
| createtime = cm32->cm_createtime; |
| canceltime = cm32->cm_canceltime; |
| memmove(marker->cm_comment, cm32->cm_comment, MTI_NAMELEN32); |
| marker->cm_comment[MTI_NAMELEN32 - 1] = '\0'; |
| memmove(marker->cm_tgtname, cm32->cm_tgtname, |
| sizeof(marker->cm_tgtname)); |
| if (swab) { |
| __swab32s(&createtime); |
| __swab32s(&canceltime); |
| } |
| marker->cm_createtime = createtime; |
| marker->cm_canceltime = canceltime; |
| CDEBUG(D_CONFIG, "Find old cfg_marker(Srv32b,Clt64b) " |
| "for target %s, converting\n", |
| marker->cm_tgtname); |
| } else if (swab) { |
| __swab64s(&marker->cm_createtime); |
| __swab64s(&marker->cm_canceltime); |
| } |
| |
| return; |
| } |
| EXPORT_SYMBOL(lustre_swab_cfg_marker); |