/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
- * Copyright (C) 2001 Cluster File Systems, Inc. <braam@clusterfs.com>
+ * Copyright (C) 2001-2003 Cluster File Systems, Inc.
+ * Author: Peter J. Braam <braam@clusterfs.com>
+ * Author: Phil Schwan <phil@clusterfs.com>
+ * Author: Eric Barton <eeb@clusterfs.com>
*
* This file is part of Lustre, http://www.lustre.org.
*
*
*/
-#define DEBUG_SUBSYSTEM S_CLASS
+#define DEBUG_SUBSYSTEM S_RPC
+#ifndef __KERNEL__
+# include <liblustre.h>
+#endif
+#include <linux/obd_support.h>
+#include <linux/obd_class.h>
#include <linux/lustre_net.h>
+#include <linux/lustre_sec.h>
+#include <linux/lustre_audit.h>
+#include <linux/fcntl.h>
+#include <linux/posix_acl.h>
-int lustre_pack_msg(int count, int *lens, char **bufs, int *len,
- struct lustre_msg **msg)
+
+#define HDR_SIZE(count) \
+ size_round(offsetof (struct lustre_msg, buflens[(count)]))
+
+int lustre_msg_swabbed(struct lustre_msg *msg)
{
- char *ptr;
- struct lustre_msg *m;
- int size = 0, i;
+ return (msg->magic == __swab32(PTLRPC_MSG_MAGIC));
+}
- for (i = 0; i < count; i++)
- size += size_round(lens[i]);
+int lustre_msg_check_version(struct lustre_msg *msg, __u32 version)
+{
+ if (!lustre_msg_swabbed(msg))
+ return (msg->version & LUSTRE_VERSION_MASK) != version;
- *len = size_round(sizeof(*m) + count * sizeof(__u32)) + size;
+ return (__swab32(msg->version) & LUSTRE_VERSION_MASK) != version;
+}
- OBD_ALLOC(*msg, *len);
- if (!*msg)
- RETURN(-ENOMEM);
+void lustre_init_msg(struct lustre_msg *msg, int count,
+ int *lens, char **bufs)
+{
+ char *ptr;
+ int i;
- m = *msg;
- m->bufcount = HTON__u32(count);
+ msg->magic = PTLRPC_MSG_MAGIC;
+ msg->version = PTLRPC_MSG_VERSION;
+ msg->bufcount = count;
for (i = 0; i < count; i++)
- m->buflens[i] = HTON__u32(lens[i]);
+ msg->buflens[i] = lens[i];
+
+ if (bufs == NULL)
+ return;
- ptr = (char *)m + size_round(sizeof(*m) + count * sizeof(__u32));
+ ptr = (char *)msg + HDR_SIZE(count);
for (i = 0; i < count; i++) {
- char *tmp = NULL;
- if (bufs)
- tmp = bufs[i];
+ char *tmp = bufs[i];
LOGL(tmp, lens[i], ptr);
}
+}
+
+int lustre_secdesc_size(void)
+{
+#ifdef __KERNEL__
+ int ngroups = current_ngroups;
+
+ if (ngroups > LUSTRE_MAX_GROUPS)
+ ngroups = LUSTRE_MAX_GROUPS;
+ return sizeof(struct mds_req_sec_desc) +
+ sizeof(__u32) * ngroups;
+#else
return 0;
+#endif
+}
+
+/*
+ * because group info might have changed since last time we call
+ * secdesc_size(), so here we did more sanity check to prevent garbage gids
+ */
+void lustre_pack_secdesc(struct ptlrpc_request *req, int size)
+{
+#ifdef __KERNEL__
+ struct mds_req_sec_desc *rsd;
+
+ rsd = lustre_msg_buf(req->rq_reqmsg,
+ MDS_REQ_SECDESC_OFF, size);
+
+ rsd->rsd_uid = current->uid;
+ rsd->rsd_gid = current->gid;
+ rsd->rsd_fsuid = current->fsuid;
+ rsd->rsd_fsgid = current->fsgid;
+ rsd->rsd_cap = current->cap_effective;
+ rsd->rsd_ngroups = (size - sizeof(*rsd)) / sizeof(__u32);
+ LASSERT(rsd->rsd_ngroups <= LUSTRE_MAX_GROUPS);
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,4)
+ task_lock(current);
+ if (rsd->rsd_ngroups > current->group_info->ngroups)
+ rsd->rsd_ngroups = current->group_info->ngroups;
+ memcpy(rsd->rsd_groups, current->group_info->blocks[0],
+ rsd->rsd_ngroups * sizeof(__u32));
+ task_unlock(current);
+#else
+ LASSERT(rsd->rsd_ngroups <= NGROUPS);
+ if (rsd->rsd_ngroups > current->ngroups)
+ rsd->rsd_ngroups = current->ngroups;
+ memcpy(rsd->rsd_groups, current->groups,
+ rsd->rsd_ngroups * sizeof(__u32));
+#endif
+#endif
+}
+
+int lustre_pack_request(struct ptlrpc_request *req,
+ int count, int *lens, char **bufs)
+{
+ int rc;
+ ENTRY;
+
+ req->rq_reqlen = lustre_msg_size(count, lens);
+ rc = ptlrpcs_cli_alloc_reqbuf(req, req->rq_reqlen);
+ if (rc)
+ RETURN(rc);
+
+ lustre_init_msg(req->rq_reqmsg, count, lens, bufs);
+ RETURN (0);
+}
+
+#if RS_DEBUG
+LIST_HEAD(ptlrpc_rs_debug_lru);
+spinlock_t ptlrpc_rs_debug_lock = SPIN_LOCK_UNLOCKED;
+
+#define PTLRPC_RS_DEBUG_LRU_ADD(rs) \
+do { \
+ unsigned long __flags; \
+ \
+ spin_lock_irqsave(&ptlrpc_rs_debug_lock, __flags); \
+ list_add_tail(&(rs)->rs_debug_list, &ptlrpc_rs_debug_lru); \
+ spin_unlock_irqrestore(&ptlrpc_rs_debug_lock, __flags); \
+} while (0)
+
+#define PTLRPC_RS_DEBUG_LRU_DEL(rs) \
+do { \
+ unsigned long __flags; \
+ \
+ spin_lock_irqsave(&ptlrpc_rs_debug_lock, __flags); \
+ list_del(&(rs)->rs_debug_list); \
+ spin_unlock_irqrestore(&ptlrpc_rs_debug_lock, __flags); \
+} while (0)
+#else
+# define PTLRPC_RS_DEBUG_LRU_ADD(rs) do {} while(0)
+# define PTLRPC_RS_DEBUG_LRU_DEL(rs) do {} while(0)
+#endif
+
+int lustre_pack_reply(struct ptlrpc_request *req,
+ int count, int *lens, char **bufs)
+{
+ struct ptlrpc_reply_state *rs;
+ int rc;
+ ENTRY;
+
+ LASSERT(req->rq_reply_state == NULL);
+ LASSERT(req->rq_svcsec);
+ LASSERT(req->rq_repmsg == NULL);
+
+ req->rq_replen = lustre_msg_size(count, lens);
+ rc = svcsec_alloc_repbuf(req->rq_svcsec, req, req->rq_replen);
+ if (rc)
+ RETURN(rc);
+ LASSERT(req->rq_reply_state);
+ LASSERT(req->rq_repmsg == req->rq_reply_state->rs_msg);
+
+ rs = req->rq_reply_state;
+ rs->rs_svcsec = svcsec_get(req->rq_svcsec);
+ rs->rs_cb_id.cbid_fn = reply_out_callback;
+ rs->rs_cb_id.cbid_arg = rs;
+ rs->rs_srv_ni = req->rq_rqbd->rqbd_srv_ni;
+ INIT_LIST_HEAD(&rs->rs_exp_list);
+ INIT_LIST_HEAD(&rs->rs_obd_list);
+
+ lustre_init_msg(rs->rs_msg, count, lens, bufs);
+
+ PTLRPC_RS_DEBUG_LRU_ADD(rs);
+
+ RETURN (0);
+}
+
+void lustre_free_reply_state(struct ptlrpc_reply_state *rs)
+{
+ struct ptlrpc_svcsec *svcsec = rs->rs_svcsec;
+
+ PTLRPC_RS_DEBUG_LRU_DEL(rs);
+
+ LASSERT(!rs->rs_difficult || rs->rs_handled);
+ LASSERT(!rs->rs_on_net);
+ LASSERT(!rs->rs_scheduled);
+ LASSERT(rs->rs_export == NULL);
+ LASSERT(rs->rs_nlocks == 0);
+ LASSERT(list_empty(&rs->rs_exp_list));
+ LASSERT(list_empty(&rs->rs_obd_list));
+ LASSERT(svcsec);
+
+ if (svcsec->free_repbuf)
+ svcsec->free_repbuf(svcsec, rs);
+ else
+ svcsec_free_reply_state(rs);
+
+ svcsec_put(svcsec);
}
/* This returns the size of the buffer that is required to hold a lustre_msg
* with the given sub-buffer lengths. */
int lustre_msg_size(int count, int *lengths)
{
- int size = 0, i;
+ int size;
+ int i;
+ size = HDR_SIZE (count);
for (i = 0; i < count; i++)
size += size_round(lengths[i]);
- size += size_round(sizeof(struct lustre_msg) + count * sizeof(__u32));
-
return size;
}
int lustre_unpack_msg(struct lustre_msg *m, int len)
{
- int required_len, i;
+ int flipped;
+ int required_len;
+ int i;
+ ENTRY;
+
+ /* We can provide a slightly better error log, if we check the
+ * message magic and version first. In the future, struct
+ * lustre_msg may grow, and we'd like to log a version mismatch,
+ * rather than a short message.
+ *
+ */
+ required_len = MAX(offsetof(struct lustre_msg, version) +
+ sizeof(m->version),
+ offsetof(struct lustre_msg, magic) +
+ sizeof(m->magic));
+ if (len < required_len) {
+ /* can't even look inside the message */
+ CERROR ("message length %d too small for magic/version check\n",
+ len);
+ RETURN (-EINVAL);
+ }
+
+ flipped = lustre_msg_swabbed(m);
+ if (flipped)
+ __swab32s(&m->version);
+ else if (m->magic != PTLRPC_MSG_MAGIC) {
+ CERROR("wrong lustre_msg magic %#08x\n", m->magic);
+ RETURN(-EINVAL);
+ }
- required_len = size_round(sizeof(*m));
- if (len < required_len)
+ if ((m->version & ~LUSTRE_VERSION_MASK) != PTLRPC_MSG_VERSION) {
+ CERROR("wrong lustre_msg version %#08x\n", m->version);
RETURN(-EINVAL);
+ }
- m->opc = NTOH__u32(m->opc);
- m->status = NTOH__u32(m->status);
- m->type = NTOH__u32(m->type);
- m->bufcount = NTOH__u32(m->bufcount);
- m->last_rcvd = NTOH__u64(m->last_rcvd);
- m->last_committed = NTOH__u64(m->last_committed);
+ /* Now we know the sender speaks my language (but possibly flipped)...*/
+ required_len = HDR_SIZE(0);
+ if (len < required_len) {
+ /* can't even look inside the message */
+ CERROR("message length %d too small for lustre_msg\n", len);
+ RETURN(-EINVAL);
+ }
- required_len = size_round(sizeof(*m) + m->bufcount * sizeof(__u32));
- if (len < required_len)
+ if (flipped) {
+ __swab32s(&m->type);
+ __swab32s(&m->opc);
+ __swab64s(&m->last_xid);
+ __swab64s(&m->last_committed);
+ __swab64s(&m->transno);
+ __swab32s(&m->status);
+ __swab32s(&m->bufcount);
+ __swab32s(&m->flags);
+ }
+
+ required_len = HDR_SIZE(m->bufcount);
+
+ if (len < required_len) {
+ /* didn't receive all the buffer lengths */
+ CERROR ("message length %d too small for %d buflens\n",
+ len, m->bufcount);
RETURN(-EINVAL);
+ }
for (i = 0; i < m->bufcount; i++) {
- m->buflens[i] = NTOH__u32(m->buflens[i]);
+ if (flipped)
+ __swab32s (&m->buflens[i]);
required_len += size_round(m->buflens[i]);
}
if (len < required_len) {
CERROR("len: %d, required_len %d\n", len, required_len);
+ CERROR("bufcount: %d\n", m->bufcount);
+ for (i = 0; i < m->bufcount; i++)
+ CERROR("buffer %d length %d\n", i, m->buflens[i]);
RETURN(-EINVAL);
}
RETURN(0);
}
-void *lustre_msg_buf(struct lustre_msg *m, int n)
+void *lustre_msg_buf(struct lustre_msg *m, int n, int min_size)
{
- int i, offset;
+ int i;
+ int offset;
+ int buflen;
+ int bufcount;
- if (n < 0 || n >= m->bufcount) {
- CERROR("referencing bad sub buffer!\n");
- LBUG();
+ LASSERT (m != NULL);
+ LASSERT (n >= 0);
+
+ bufcount = m->bufcount;
+ if (n >= bufcount) {
+ CDEBUG(D_INFO, "msg %p buffer[%d] not present (count %d)\n",
+ m, n, bufcount);
return NULL;
}
- if (m->buflens[n] == 0)
+ buflen = m->buflens[n];
+ if (buflen < min_size) {
+ CERROR("msg %p buffer[%d] size %d too small (required %d)\n",
+ m, n, buflen, min_size);
return NULL;
+ }
- offset = size_round(sizeof(*m) + m->bufcount * sizeof(__u32));
-
+ offset = HDR_SIZE(bufcount);
for (i = 0; i < n; i++)
offset += size_round(m->buflens[i]);
return (char *)m + offset;
}
+
+char *lustre_msg_string(struct lustre_msg *m, int index, int max_len)
+{
+ /* max_len == 0 means the string should fill the buffer */
+ char *str = lustre_msg_buf(m, index, 0);
+ int slen;
+ int blen;
+
+ if (str == NULL) {
+ CERROR ("can't unpack string in msg %p buffer[%d]\n", m, index);
+ return (NULL);
+ }
+
+ blen = m->buflens[index];
+ slen = strnlen(str, blen);
+
+ if (slen == blen) { /* not NULL terminated */
+ CERROR ("can't unpack non-NULL terminated string in "
+ "msg %p buffer[%d] len %d\n", m, index, blen);
+ return (NULL);
+ }
+
+ if (max_len == 0) {
+ if (slen != blen - 1) {
+ CERROR ("can't unpack short string in msg %p "
+ "buffer[%d] len %d: strlen %d\n",
+ m, index, blen, slen);
+ return (NULL);
+ }
+ } else if (slen > max_len) {
+ CERROR ("can't unpack oversized string in msg %p "
+ "buffer[%d] len %d strlen %d: max %d expected\n",
+ m, index, blen, slen, max_len);
+ return (NULL);
+ }
+
+ return (str);
+}
+
+/* Wrap up the normal fixed length cases */
+void *lustre_swab_buf(struct lustre_msg *msg, int index, int min_size,
+ void *swabber)
+{
+ void *ptr;
+
+ ptr = lustre_msg_buf(msg, index, min_size);
+ if (ptr == NULL)
+ return NULL;
+
+ if (swabber != NULL && lustre_msg_swabbed(msg))
+ ((void (*)(void *))swabber)(ptr);
+
+ return ptr;
+}
+
+void *lustre_swab_reqbuf(struct ptlrpc_request *req, int index, int min_size,
+ void *swabber)
+{
+ LASSERT_REQSWAB(req, index);
+ return lustre_swab_buf(req->rq_reqmsg, index, min_size, swabber);
+}
+
+void *lustre_swab_repbuf(struct ptlrpc_request *req, int index, int min_size,
+ void *swabber)
+{
+ LASSERT_REPSWAB(req, index);
+ return lustre_swab_buf(req->rq_repmsg, index, min_size, swabber);
+}
+
+/* byte flipping routines for all wire types declared in
+ * lustre_idl.h implemented here.
+ */
+
+void lustre_swab_connect(struct obd_connect_data *ocd)
+{
+ __swab64s(&ocd->ocd_connect_flags);
+ __swab32s(&ocd->ocd_nllu[0]);
+ __swab32s(&ocd->ocd_nllu[1]);
+}
+
+void lustre_swab_obdo(struct obdo *o)
+{
+ __swab64s(&o->o_id);
+ __swab64s(&o->o_gr);
+ __swab64s(&o->o_atime);
+ __swab64s(&o->o_mtime);
+ __swab64s(&o->o_ctime);
+ __swab64s(&o->o_size);
+ __swab64s(&o->o_blocks);
+ __swab64s(&o->o_grant);
+ __swab32s(&o->o_blksize);
+ __swab32s(&o->o_mode);
+ __swab32s(&o->o_uid);
+ __swab32s(&o->o_gid);
+ __swab32s(&o->o_flags);
+ __swab32s(&o->o_nlink);
+ __swab32s(&o->o_generation);
+ __swab64s(&o->o_valid);
+ __swab32s(&o->o_misc);
+ __swab32s(&o->o_easize);
+ __swab32s(&o->o_mds);
+ __swab64s(&o->o_fid);
+ /* o_inline is opaque */
+}
+
+/* mdc pack methods used by mdc and smfs*/
+void *mdc_create_pack(struct lustre_msg *msg, int offset,
+ struct mdc_op_data *op_data, __u32 mode,
+ __u64 rdev, const void *data, int datalen)
+{
+ struct mds_rec_create *rec;
+ char *tmp;
+ rec = lustre_msg_buf(msg, offset, sizeof (*rec));
+
+ rec->cr_opcode = REINT_CREATE;
+ rec->cr_id = op_data->id1;
+ rec->cr_replayid = op_data->id2;
+ rec->cr_mode = mode;
+ rec->cr_rdev = rdev;
+ rec->cr_flags = op_data->flags;
+ rec->cr_time = op_data->mod_time;
+
+ tmp = lustre_msg_buf(msg, offset + 1, op_data->namelen + 1);
+ LOGL0(op_data->name, op_data->namelen, tmp);
+
+ if (data) {
+ tmp = lustre_msg_buf(msg, offset + 2, datalen);
+ memcpy (tmp, data, datalen);
+ }
+ return ((void*)tmp + size_round(datalen));
+}
+
+__u32 mds_pack_open_flags(__u32 flags)
+{
+ return
+ (flags & (FMODE_READ | FMODE_WRITE | FMODE_EXEC |
+ MDS_OPEN_DELAY_CREATE | MDS_OPEN_HAS_EA |
+ MDS_OPEN_HAS_OBJS)) |
+ ((flags & O_CREAT) ? MDS_OPEN_CREAT : 0) |
+ ((flags & O_EXCL) ? MDS_OPEN_EXCL : 0) |
+ ((flags & O_TRUNC) ? MDS_OPEN_TRUNC : 0) |
+ ((flags & O_APPEND) ? MDS_OPEN_APPEND : 0) |
+ ((flags & O_SYNC) ? MDS_OPEN_SYNC : 0) |
+ ((flags & O_DIRECTORY) ? MDS_OPEN_DIRECTORY : 0) |
+ 0;
+}
+
+void *mdc_setattr_pack(struct lustre_msg *msg, int offset,
+ struct mdc_op_data *op_data, struct iattr *iattr,
+ void *ea, int ealen, void *ea2, int ea2len,
+ void *ea3, int ea3len)
+{
+ struct mds_rec_setattr *rec = lustre_msg_buf(msg, offset, sizeof(*rec));
+ char *tmp = NULL;
+
+ rec->sa_opcode = REINT_SETATTR;
+ rec->sa_flags = op_data->flags;
+ rec->sa_id = op_data->id1;
+
+ if (iattr) {
+ rec->sa_valid = iattr->ia_valid;
+ rec->sa_mode = iattr->ia_mode;
+ rec->sa_uid = iattr->ia_uid;
+ rec->sa_gid = iattr->ia_gid;
+ rec->sa_size = iattr->ia_size;
+ rec->sa_atime = LTIME_S(iattr->ia_atime);
+ rec->sa_mtime = LTIME_S(iattr->ia_mtime);
+ rec->sa_ctime = LTIME_S(iattr->ia_ctime);
+ rec->sa_attr_flags = iattr->ia_attr_flags;
+ }
+ tmp = (char*)rec + size_round(sizeof(*rec));
+
+ if (ealen == 0)
+ return (void*)tmp;
+
+ memcpy(lustre_msg_buf(msg, offset + 1, ealen), ea, ealen);
+ tmp += size_round(ealen);
+
+ if (ea2len == 0)
+ return (void*)tmp;
+
+ memcpy(lustre_msg_buf(msg, offset + 2, ea2len), ea2, ea2len);
+ tmp += size_round(ea2len);
+
+ if (ea3len == 0)
+ return (void*)tmp;
+
+ memcpy(lustre_msg_buf(msg, offset + 3, ea3len), ea3, ea3len);
+ tmp += size_round(ea3len);
+
+ return (void*)tmp;
+}
+
+void *mdc_unlink_pack(struct lustre_msg *msg, int offset,
+ struct mdc_op_data *op_data)
+{
+ struct mds_rec_unlink *rec;
+ char *tmp;
+
+ rec = lustre_msg_buf(msg, offset, sizeof (*rec));
+ LASSERT (rec != NULL);
+
+ rec->ul_opcode = REINT_UNLINK;
+ rec->ul_mode = op_data->create_mode;
+ rec->ul_id1 = op_data->id1;
+ rec->ul_id2 = op_data->id2;
+ rec->ul_time = op_data->mod_time;
+ rec->ul_flags = op_data->flags;
+
+ tmp = lustre_msg_buf(msg, offset + 1, op_data->namelen + 1);
+ LASSERT (tmp != NULL);
+ LOGL0(op_data->name, op_data->namelen, tmp);
+ return (void*)tmp;
+}
+
+void *mdc_link_pack(struct lustre_msg *msg, int offset,
+ struct mdc_op_data *op_data)
+{
+ struct mds_rec_link *rec;
+ char *tmp;
+
+ rec = lustre_msg_buf(msg, offset, sizeof (*rec));
+
+ rec->lk_opcode = REINT_LINK;
+ rec->lk_id1 = op_data->id1;
+ rec->lk_id2 = op_data->id2;
+ rec->lk_flags = op_data->flags;
+ rec->lk_time = op_data->mod_time;
+
+ tmp = lustre_msg_buf(msg, offset + 1, op_data->namelen + 1);
+ LOGL0(op_data->name, op_data->namelen, tmp);
+
+ return (void*)tmp;
+}
+
+void *mdc_rename_pack(struct lustre_msg *msg, int offset,
+ struct mdc_op_data *op_data,
+ const char *old, int oldlen,
+ const char *new, int newlen)
+{
+ struct mds_rec_rename *rec;
+ char *tmp;
+
+ rec = lustre_msg_buf(msg, offset, sizeof (*rec));
+
+ /* XXX do something about time, uid, gid */
+ rec->rn_opcode = REINT_RENAME;
+ rec->rn_id1 = op_data->id1;
+ rec->rn_id2 = op_data->id2;
+ rec->rn_flags = op_data->flags;
+ rec->rn_time = op_data->mod_time;
+
+ tmp = lustre_msg_buf(msg, offset + 1, oldlen + 1);
+ LOGL0(old, oldlen, tmp);
+
+ if (new) {
+ tmp = lustre_msg_buf(msg, offset + 2, newlen + 1);
+ LOGL0(new, newlen, tmp);
+ }
+ return (void*)tmp;
+}
+
+void lustre_swab_obd_statfs(struct obd_statfs *os)
+{
+ __swab64s(&os->os_type);
+ __swab64s(&os->os_blocks);
+ __swab64s(&os->os_bfree);
+ __swab64s(&os->os_bavail);
+ __swab64s(&os->os_ffree);
+ /* no need to swap os_fsid */
+ __swab32s(&os->os_bsize);
+ __swab32s(&os->os_namelen);
+ /* no need to swap os_spare */
+}
+
+void lustre_swab_obd_ioobj(struct obd_ioobj *ioo)
+{
+ __swab64s(&ioo->ioo_id);
+ __swab64s(&ioo->ioo_gr);
+ __swab32s(&ioo->ioo_type);
+ __swab32s(&ioo->ioo_bufcnt);
+}
+
+void lustre_swab_niobuf_remote(struct niobuf_remote *nbr)
+{
+ __swab64s(&nbr->offset);
+ __swab32s(&nbr->len);
+ __swab32s(&nbr->flags);
+}
+
+void lustre_swab_ost_body(struct ost_body *b)
+{
+ lustre_swab_obdo(&b->oa);
+}
+
+void lustre_swab_ost_last_id(obd_id *id)
+{
+ __swab64s(id);
+}
+
+void lustre_swab_generic_32s(__u32 *val)
+{
+ __swab32s(val);
+}
+
+void lustre_swab_ost_lvb(struct ost_lvb *lvb)
+{
+ __swab64s(&lvb->lvb_size);
+ __swab64s(&lvb->lvb_mtime);
+ __swab64s(&lvb->lvb_atime);
+ __swab64s(&lvb->lvb_ctime);
+ __swab64s(&lvb->lvb_blocks);
+}
+
+void lustre_swab_lustre_stc (struct lustre_stc *stc)
+{
+ __swab64s(&stc->u.e3s.l3s_ino);
+ __swab32s(&stc->u.e3s.l3s_gen);
+ __swab32s(&stc->u.e3s.l3s_type);
+}
+
+void lustre_swab_lustre_fid(struct lustre_fid *fid)
+{
+ __swab64s(&fid->lf_id);
+ __swab64s(&fid->lf_group);
+ /*__swab32s (&fid->lf_version);*/
+}
+
+void lustre_swab_lustre_id(struct lustre_id *id)
+{
+ lustre_swab_lustre_stc(&id->li_stc);
+ lustre_swab_lustre_fid(&id->li_fid);
+}
+
+void lustre_swab_parseid_pkg (struct parseid_pkg *pkg)
+{
+ __swab32s(&pkg->pp_type);
+ __swab32s(&pkg->pp_rc);
+ lustre_swab_lustre_id(&pkg->pp_id1);
+ lustre_swab_lustre_id(&pkg->pp_id2);
+}
+
+void lustre_swab_mds_status_req(struct mds_status_req *r)
+{
+ __swab32s(&r->flags);
+ __swab32s(&r->repbuf);
+}
+
+/*
+ * because sec_desc is variable buffer, we must check it by hand
+ */
+struct mds_req_sec_desc *lustre_swab_mds_secdesc(struct ptlrpc_request *req,
+ int offset)
+{
+ struct mds_req_sec_desc *rsd;
+ struct lustre_msg *m;
+ __u32 i;
+
+ LASSERT_REQSWAB(req, offset);
+
+ m = req->rq_reqmsg;
+ rsd = lustre_msg_buf(m, offset, sizeof(*rsd));
+ if (!rsd)
+ return NULL;
+
+ if (lustre_msg_swabbed(m)) {
+ __swab32s(&rsd->rsd_uid);
+ __swab32s(&rsd->rsd_gid);
+ __swab32s(&rsd->rsd_fsuid);
+ __swab32s(&rsd->rsd_fsgid);
+ __swab32s(&rsd->rsd_cap);
+ __swab32s(&rsd->rsd_ngroups);
+ }
+
+ if (rsd->rsd_ngroups > LUSTRE_MAX_GROUPS) {
+ CERROR("%u groups is not allowed\n", rsd->rsd_ngroups);
+ return NULL;
+ }
+
+ if (m->buflens[offset] !=
+ sizeof(*rsd) + rsd->rsd_ngroups * sizeof(__u32)) {
+ CERROR("bufflen %u while contains %u groups\n",
+ m->buflens[offset], rsd->rsd_ngroups);
+ return NULL;
+ }
+
+ if (lustre_msg_swabbed(m)) {
+ for (i = 0; i < rsd->rsd_ngroups; i++)
+ __swab32s(&rsd->rsd_groups[i]);
+ }
+
+ return rsd;
+}
+
+void lustre_swab_mds_body(struct mds_body *b)
+{
+ lustre_swab_lustre_id(&b->id1);
+ lustre_swab_lustre_id(&b->id2);
+ /* handle is opaque */
+ __swab64s(&b->size);
+ __swab64s(&b->blocks);
+ __swab64s(&b->valid);
+ __swab64s (&b->audit);
+ __swab32s(&b->mode);
+ __swab32s(&b->uid);
+ __swab32s(&b->gid);
+ __swab32s(&b->mtime);
+ __swab32s(&b->ctime);
+ __swab32s(&b->atime);
+ __swab32s(&b->flags);
+ __swab32s(&b->rdev);
+ __swab32s(&b->nlink);
+ __swab32s(&b->eadatasize);
+}
+void lustre_swab_mds_rec_setattr(struct mds_rec_setattr *sa)
+{
+ __swab32s(&sa->sa_opcode);
+ __swab32s(&sa->sa_flags);
+ __swab32s(&sa->sa_valid);
+ lustre_swab_lustre_id(&sa->sa_id);
+ __swab32s(&sa->sa_mode);
+ __swab32s(&sa->sa_uid);
+ __swab32s(&sa->sa_gid);
+ __swab32s(&sa->sa_attr_flags);
+ __swab64s(&sa->sa_size);
+ __swab64s(&sa->sa_atime);
+ __swab64s(&sa->sa_mtime);
+ __swab64s(&sa->sa_ctime);
+}
+
+void lustre_swab_mds_rec_create(struct mds_rec_create *cr)
+{
+ __swab32s(&cr->cr_opcode);
+ __swab32s(&cr->cr_flags);
+ __swab32s(&cr->cr_mode);
+ lustre_swab_lustre_id(&cr->cr_id);
+ lustre_swab_lustre_id(&cr->cr_replayid);
+ __swab64s(&cr->cr_time);
+ __swab64s(&cr->cr_rdev);
+}
+
+void lustre_swab_mds_rec_link(struct mds_rec_link *lk)
+{
+ __swab32s(&lk->lk_opcode);
+ __swab32s(&lk->lk_flags);
+ lustre_swab_lustre_id(&lk->lk_id1);
+ lustre_swab_lustre_id(&lk->lk_id2);
+}
+
+void lustre_swab_mds_rec_unlink(struct mds_rec_unlink *ul)
+{
+ __swab32s(&ul->ul_opcode);
+ __swab32s(&ul->ul_flags);
+ __swab32s(&ul->ul_mode);
+ lustre_swab_lustre_id(&ul->ul_id1);
+ lustre_swab_lustre_id(&ul->ul_id2);
+}
+
+void lustre_swab_mds_rec_rename (struct mds_rec_rename *rn)
+{
+ __swab32s(&rn->rn_opcode);
+ __swab32s(&rn->rn_flags);
+ lustre_swab_lustre_id(&rn->rn_id1);
+ lustre_swab_lustre_id(&rn->rn_id2);
+}
+
+void lustre_swab_lov_desc(struct lov_desc *ld)
+{
+ __swab32s(&ld->ld_tgt_count);
+ __swab32s(&ld->ld_active_tgt_count);
+ __swab32s(&ld->ld_default_stripe_count);
+ __swab64s(&ld->ld_default_stripe_size);
+ __swab64s(&ld->ld_default_stripe_offset);
+ __swab32s(&ld->ld_pattern);
+ /* uuid endian insensitive */
+}
+
+void lustre_swab_fid_extent(struct fid_extent *ext)
+{
+ __swab64s(&ext->fe_start);
+ __swab64s(&ext->fe_width);
+}
+
+void lustre_swab_ldlm_res_id(struct ldlm_res_id *id)
+{
+ int i;
+
+ for (i = 0; i < RES_NAME_SIZE; i++)
+ __swab64s(&id->name[i]);
+}
+
+void lustre_swab_ldlm_policy_data(ldlm_policy_data_t *d)
+{
+ /* the lock data is a union and the first three fields of both EXTENT
+ * and FLOCK types are __u64, so it's ok to swab them in the same way */
+ __swab64s(&d->l_flock.start);
+ __swab64s(&d->l_flock.end);
+ __swab64s(&d->l_flock.pid);
+ __swab64s(&d->l_flock.blocking_pid);
+}
+
+void lustre_swab_ldlm_intent(struct ldlm_intent *i)
+{
+ __swab64s(&i->opc);
+}
+
+void lustre_swab_ldlm_resource_desc(struct ldlm_resource_desc *r)
+{
+ __swab32s(&r->lr_type);
+ lustre_swab_ldlm_res_id(&r->lr_name);
+}
+
+void lustre_swab_ldlm_lock_desc(struct ldlm_lock_desc *l)
+{
+ lustre_swab_ldlm_resource_desc(&l->l_resource);
+ __swab32s(&l->l_req_mode);
+ __swab32s(&l->l_granted_mode);
+ lustre_swab_ldlm_policy_data(&l->l_policy_data);
+}
+
+void lustre_swab_ldlm_request(struct ldlm_request *rq)
+{
+ __swab32s(&rq->lock_flags);
+ lustre_swab_ldlm_lock_desc(&rq->lock_desc);
+ /* lock_handle1 opaque */
+ /* lock_handle2 opaque */
+}
+
+void lustre_swab_ldlm_reply(struct ldlm_reply *r)
+{
+ __swab32s(&r->lock_flags);
+ lustre_swab_ldlm_lock_desc(&r->lock_desc);
+ /* lock_handle opaque */
+ __swab64s(&r->lock_policy_res1);
+ __swab64s(&r->lock_policy_res2);
+}
+
+void lustre_swab_ptlbd_op(struct ptlbd_op *op)
+{
+ __swab16s(&op->op_cmd);
+ __swab16s(&op->op_lun);
+ __swab16s(&op->op_niob_cnt);
+ /* ignore op__padding */
+ __swab32s(&op->op_block_cnt);
+}
+
+void lustre_swab_ptlbd_niob(struct ptlbd_niob *n)
+{
+ __swab64s(&n->n_xid);
+ __swab64s(&n->n_block_nr);
+ __swab32s(&n->n_offset);
+ __swab32s(&n->n_length);
+}
+
+void lustre_swab_ptlbd_rsp(struct ptlbd_rsp *r)
+{
+ __swab16s(&r->r_status);
+ __swab16s(&r->r_error_cnt);
+}
+
+void lustre_swab_remote_perm(struct mds_remote_perm *p)
+{
+ __swab32s(&p->mrp_auth_uid);
+ __swab32s(&p->mrp_auth_gid);
+ __swab16s(&p->mrp_perm);
+}
+
+void lustre_swab_lustre_capa(struct lustre_capa *c)
+{
+ __swab32s (&c->lc_uid);
+ __swab32s (&c->lc_op);
+ __swab64s (&c->lc_ino);
+ __swab32s (&c->lc_mdsid);
+ __swab32s (&c->lc_keyid);
+ __swab64s (&c->lc_expiry);
+ __swab32s (&c->lc_flags);
+}
+
+void lustre_swab_lustre_capa_key (struct lustre_capa_key *k)
+{
+ __swab32s (&k->lk_mdsid);
+ __swab32s (&k->lk_keyid);
+ __swab64s (&k->lk_expiry);
+}
+
+void lustre_swab_audit_msg (struct audit_msg *r)
+{
+ lustre_swab_lustre_id(&r->id);
+ __swab32s (&r->code);
+ __swab32s (&r->result);
+ __swab32s (&r->uid);
+ __swab32s (&r->gid);
+ __swab64s (&r->nid);
+}
+
+void lustre_swab_audit_attr (struct audit_attr_msg *r)
+{
+ lustre_swab_lustre_id(&r->id);
+ __swab64s (&r->attr);
+}
+
+/* no one calls this */
+int llog_log_swabbed(struct llog_log_hdr *hdr)
+{
+ if (hdr->llh_hdr.lrh_type == __swab32(LLOG_HDR_MAGIC))
+ return 1;
+ if (hdr->llh_hdr.lrh_type == LLOG_HDR_MAGIC)
+ return 0;
+ return -1;
+}
+
+void lustre_assert_wire_constants(void)
+{
+}
+/* for gks key rec */
+void lustre_swab_key_perms(struct key_perm *kperm)
+{
+ int i;
+ __swab32s(&kperm->kp_uid);
+ __swab32s(&kperm->kp_gid);
+ __swab32s(&kperm->kp_mode);
+ __swab32s(&kperm->kp_acl_count);
+ for (i = 0; i < kperm->kp_acl_count; i++) {
+ __swab16s(&kperm->kp_acls[i].e_tag);
+ __swab16s(&kperm->kp_acls[i].e_perm);
+ __swab32s(&kperm->kp_acls[i].e_id);
+ }
+}
+void lustre_swab_key_context (struct key_context *kctxt)
+{
+ __swab32s (&kctxt->kc_command);
+ __swab32s (&kctxt->kc_valid); /* for use with open */
+ lustre_swab_key_perms(&kctxt->kc_perm);
+}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff