#define DEBUG_SUBSYSTEM S_RPC
+#include <linux/crc32.h>
+
#include <libcfs/libcfs.h>
#include <llog_swab.h>
#include <obd_cksum.h>
#include <obd_class.h>
#include <obd_support.h>
-#include <obj_update.h>
-
#include "ptlrpc_internal.h"
static inline __u32 lustre_msg_hdr_size_v2(__u32 count)
{
- return cfs_size_round(offsetof(struct lustre_msg_v2,
- lm_buflens[count]));
+ return cfs_size_round(offsetof(struct lustre_msg_v2,
+ lm_buflens[count]));
}
__u32 lustre_msg_hdr_size(__u32 magic, __u32 count)
{
- switch (magic) {
- case LUSTRE_MSG_MAGIC_V2:
- return lustre_msg_hdr_size_v2(count);
- default:
- LASSERTF(0, "incorrect message magic: %08x\n", magic);
+ LASSERT(count > 0);
+
+ switch (magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ return lustre_msg_hdr_size_v2(count);
+ default:
+ LASSERTF(0, "incorrect message magic: %08x\n", magic);
return 0;
- }
+ }
}
void ptlrpc_buf_set_swabbed(struct ptlrpc_request *req, const int inout,
__u32 index)
{
- if (inout)
- lustre_set_req_swabbed(req, index);
- else
- lustre_set_rep_swabbed(req, index);
+ if (inout)
+ lustre_set_req_swabbed(req, index);
+ else
+ lustre_set_rep_swabbed(req, index);
}
bool ptlrpc_buf_need_swab(struct ptlrpc_request *req, const int inout,
/* early reply size */
__u32 lustre_msg_early_size()
{
- static __u32 size;
- if (!size) {
- /* Always reply old ptlrpc_body_v2 to keep interoprability
- * with the old client (< 2.3) which doesn't have pb_jobid
- * in the ptlrpc_body.
- *
- * XXX Remove this whenever we dorp interoprability with such
- * client.
- */
- __u32 pblen = sizeof(struct ptlrpc_body_v2);
- size = lustre_msg_size(LUSTRE_MSG_MAGIC_V2, 1, &pblen);
- }
- return size;
+ __u32 pblen = sizeof(struct ptlrpc_body);
+
+ return lustre_msg_size(LUSTRE_MSG_MAGIC_V2, 1, &pblen);
}
EXPORT_SYMBOL(lustre_msg_early_size);
__u32 lustre_msg_size_v2(int count, __u32 *lengths)
{
__u32 size;
- int i;
+ int i;
- size = lustre_msg_hdr_size_v2(count);
- for (i = 0; i < count; i++)
- size += cfs_size_round(lengths[i]);
+ LASSERT(count > 0);
+ size = lustre_msg_hdr_size_v2(count);
+ for (i = 0; i < count; i++)
+ size += cfs_size_round(lengths[i]);
- return size;
+ return size;
}
EXPORT_SYMBOL(lustre_msg_size_v2);
-/* This returns the size of the buffer that is required to hold a lustre_msg
+/*
+ * This returns the size of the buffer that is required to hold a lustre_msg
* with the given sub-buffer lengths.
* NOTE: this should only be used for NEW requests, and should always be
* in the form of a v2 request. If this is a connection to a v1
* target then the first buffer will be stripped because the ptlrpc
- * data is part of the lustre_msg_v1 header. b=14043 */
+ * data is part of the lustre_msg_v1 header. b=14043
+ */
__u32 lustre_msg_size(__u32 magic, int count, __u32 *lens)
{
- __u32 size[] = { sizeof(struct ptlrpc_body) };
+ __u32 size[] = { sizeof(struct ptlrpc_body) };
- if (!lens) {
- LASSERT(count == 1);
- lens = size;
- }
+ if (!lens) {
+ LASSERT(count == 1);
+ lens = size;
+ }
- LASSERT(count > 0);
+ LASSERT(count > 0);
LASSERT(lens[MSG_PTLRPC_BODY_OFF] >= sizeof(struct ptlrpc_body_v2));
- switch (magic) {
- case LUSTRE_MSG_MAGIC_V2:
- return lustre_msg_size_v2(count, lens);
- default:
- LASSERTF(0, "incorrect message magic: %08x\n", magic);
+ switch (magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ return lustre_msg_size_v2(count, lens);
+ default:
+ LASSERTF(0, "incorrect message magic: %08x\n", magic);
return 0;
- }
+ }
}
-/* This is used to determine the size of a buffer that was already packed
- * and will correctly handle the different message formats. */
+/*
+ * This is used to determine the size of a buffer that was already packed
+ * and will correctly handle the different message formats.
+ */
__u32 lustre_packed_msg_size(struct lustre_msg *msg)
{
- switch (msg->lm_magic) {
- case LUSTRE_MSG_MAGIC_V2:
- return lustre_msg_size_v2(msg->lm_bufcount, msg->lm_buflens);
- default:
- CERROR("incorrect message magic: %08x\n", msg->lm_magic);
- return 0;
- }
+ switch (msg->lm_magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ return lustre_msg_size_v2(msg->lm_bufcount, msg->lm_buflens);
+ default:
+ CERROR("incorrect message magic: %08x\n", msg->lm_magic);
+ return 0;
+ }
}
EXPORT_SYMBOL(lustre_packed_msg_size);
void lustre_init_msg_v2(struct lustre_msg_v2 *msg, int count, __u32 *lens,
- char **bufs)
+ char **bufs)
{
- char *ptr;
- int i;
+ char *ptr;
+ int i;
+
+ LASSERT(count > 0);
- msg->lm_bufcount = count;
- /* XXX: lm_secflvr uninitialized here */
- msg->lm_magic = LUSTRE_MSG_MAGIC_V2;
+ msg->lm_bufcount = count;
+ /* XXX: lm_secflvr uninitialized here */
+ msg->lm_magic = LUSTRE_MSG_MAGIC_V2;
- for (i = 0; i < count; i++)
- msg->lm_buflens[i] = lens[i];
+ for (i = 0; i < count; i++)
+ msg->lm_buflens[i] = lens[i];
- if (bufs == NULL)
- return;
+ if (bufs == NULL)
+ return;
ptr = (char *)msg + lustre_msg_hdr_size_v2(count);
for (i = 0; i < count; i++) {
EXPORT_SYMBOL(lustre_init_msg_v2);
static int lustre_pack_request_v2(struct ptlrpc_request *req,
- int count, __u32 *lens, char **bufs)
+ int count, __u32 *lens, char **bufs)
{
- int reqlen, rc;
+ int reqlen, rc;
- reqlen = lustre_msg_size_v2(count, lens);
+ reqlen = lustre_msg_size_v2(count, lens);
- rc = sptlrpc_cli_alloc_reqbuf(req, reqlen);
- if (rc)
- return rc;
+ rc = sptlrpc_cli_alloc_reqbuf(req, reqlen);
+ if (rc)
+ return rc;
- req->rq_reqlen = reqlen;
+ req->rq_reqlen = reqlen;
- lustre_init_msg_v2(req->rq_reqmsg, count, lens, bufs);
- lustre_msg_add_version(req->rq_reqmsg, PTLRPC_MSG_VERSION);
- return 0;
+ lustre_init_msg_v2(req->rq_reqmsg, count, lens, bufs);
+ lustre_msg_add_version(req->rq_reqmsg, PTLRPC_MSG_VERSION);
+ return 0;
}
int lustre_pack_request(struct ptlrpc_request *req, __u32 magic, int count,
- __u32 *lens, char **bufs)
+ __u32 *lens, char **bufs)
{
- __u32 size[] = { sizeof(struct ptlrpc_body) };
+ __u32 size[] = { sizeof(struct ptlrpc_body) };
- if (!lens) {
- LASSERT(count == 1);
- lens = size;
- }
+ if (!lens) {
+ LASSERT(count == 1);
+ lens = size;
+ }
- LASSERT(count > 0);
- LASSERT(lens[MSG_PTLRPC_BODY_OFF] == sizeof(struct ptlrpc_body));
+ LASSERT(count > 0);
+ LASSERT(lens[MSG_PTLRPC_BODY_OFF] == sizeof(struct ptlrpc_body));
- /* only use new format, we don't need to be compatible with 1.4 */
- magic = LUSTRE_MSG_MAGIC_V2;
+ /* only use new format, we don't need to be compatible with 1.4 */
+ magic = LUSTRE_MSG_MAGIC_V2;
- switch (magic) {
- case LUSTRE_MSG_MAGIC_V2:
- return lustre_pack_request_v2(req, count, lens, bufs);
- default:
- LASSERTF(0, "incorrect message magic: %08x\n", magic);
- return -EINVAL;
- }
+ switch (magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ return lustre_pack_request_v2(req, count, lens, bufs);
+ default:
+ LASSERTF(0, "incorrect message magic: %08x\n", magic);
+ return -EINVAL;
+ }
}
#if RS_DEBUG
/* See if we have anything in a pool, and wait if nothing */
while (list_empty(&svcpt->scp_rep_idle)) {
- struct l_wait_info lwi;
int rc;
spin_unlock(&svcpt->scp_rep_lock);
/* If we cannot get anything for some long time, we better
* bail out instead of waiting infinitely */
- lwi = LWI_TIMEOUT(cfs_time_seconds(10), NULL, NULL);
- rc = l_wait_event(svcpt->scp_rep_waitq,
- !list_empty(&svcpt->scp_rep_idle), &lwi);
- if (rc != 0)
+ rc = wait_event_idle_timeout(svcpt->scp_rep_waitq,
+ !list_empty(&svcpt->scp_rep_idle),
+ cfs_time_seconds(10));
+ if (rc <= 0)
goto out;
spin_lock(&svcpt->scp_rep_lock);
}
}
int lustre_pack_reply_v2(struct ptlrpc_request *req, int count,
- __u32 *lens, char **bufs, int flags)
+ __u32 *lens, char **bufs, int flags)
{
- struct ptlrpc_reply_state *rs;
- int msg_len, rc;
- ENTRY;
+ struct ptlrpc_reply_state *rs;
+ int msg_len, rc;
+ ENTRY;
- LASSERT(req->rq_reply_state == NULL);
+ LASSERT(req->rq_reply_state == NULL);
+ LASSERT(count > 0);
- if ((flags & LPRFL_EARLY_REPLY) == 0) {
+ if ((flags & LPRFL_EARLY_REPLY) == 0) {
spin_lock(&req->rq_lock);
req->rq_packed_final = 1;
spin_unlock(&req->rq_lock);
- }
+ }
- msg_len = lustre_msg_size_v2(count, lens);
- rc = sptlrpc_svc_alloc_rs(req, msg_len);
- if (rc)
- RETURN(rc);
+ msg_len = lustre_msg_size_v2(count, lens);
+ rc = sptlrpc_svc_alloc_rs(req, msg_len);
+ if (rc)
+ RETURN(rc);
rs = req->rq_reply_state;
- atomic_set(&rs->rs_refcount, 1); /* 1 ref for rq_reply_state */
+ atomic_set(&rs->rs_refcount, 1); /* 1 ref for rq_reply_state */
rs->rs_cb_id.cbid_fn = reply_out_callback;
rs->rs_cb_id.cbid_arg = rs;
rs->rs_svcpt = req->rq_rqbd->rqbd_svcpt;
INIT_LIST_HEAD(&rs->rs_list);
spin_lock_init(&rs->rs_lock);
- req->rq_replen = msg_len;
- req->rq_reply_state = rs;
- req->rq_repmsg = rs->rs_msg;
+ req->rq_replen = msg_len;
+ req->rq_reply_state = rs;
+ req->rq_repmsg = rs->rs_msg;
- lustre_init_msg_v2(rs->rs_msg, count, lens, bufs);
- lustre_msg_add_version(rs->rs_msg, PTLRPC_MSG_VERSION);
+ lustre_init_msg_v2(rs->rs_msg, count, lens, bufs);
+ lustre_msg_add_version(rs->rs_msg, PTLRPC_MSG_VERSION);
- PTLRPC_RS_DEBUG_LRU_ADD(rs);
+ PTLRPC_RS_DEBUG_LRU_ADD(rs);
- RETURN(0);
+ RETURN(0);
}
EXPORT_SYMBOL(lustre_pack_reply_v2);
int lustre_pack_reply_flags(struct ptlrpc_request *req, int count, __u32 *lens,
- char **bufs, int flags)
-{
- int rc = 0;
- __u32 size[] = { sizeof(struct ptlrpc_body) };
-
- if (!lens) {
- LASSERT(count == 1);
- lens = size;
- }
-
- LASSERT(count > 0);
- LASSERT(lens[MSG_PTLRPC_BODY_OFF] == sizeof(struct ptlrpc_body));
-
- switch (req->rq_reqmsg->lm_magic) {
- case LUSTRE_MSG_MAGIC_V2:
- rc = lustre_pack_reply_v2(req, count, lens, bufs, flags);
- break;
- default:
- LASSERTF(0, "incorrect message magic: %08x\n",
- req->rq_reqmsg->lm_magic);
- rc = -EINVAL;
- }
- if (rc != 0)
- CERROR("lustre_pack_reply failed: rc=%d size=%d\n", rc,
- lustre_msg_size(req->rq_reqmsg->lm_magic, count, lens));
- return rc;
+ char **bufs, int flags)
+{
+ int rc = 0;
+ __u32 size[] = { sizeof(struct ptlrpc_body) };
+
+ if (!lens) {
+ LASSERT(count == 1);
+ lens = size;
+ }
+
+ LASSERT(count > 0);
+ LASSERT(lens[MSG_PTLRPC_BODY_OFF] == sizeof(struct ptlrpc_body));
+
+ switch (req->rq_reqmsg->lm_magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ rc = lustre_pack_reply_v2(req, count, lens, bufs, flags);
+ break;
+ default:
+ LASSERTF(0, "incorrect message magic: %08x\n",
+ req->rq_reqmsg->lm_magic);
+ rc = -EINVAL;
+ }
+ if (rc != 0)
+ CERROR("lustre_pack_reply failed: rc=%d size=%d\n", rc,
+ lustre_msg_size(req->rq_reqmsg->lm_magic, count, lens));
+ return rc;
}
int lustre_pack_reply(struct ptlrpc_request *req, int count, __u32 *lens,
- char **bufs)
+ char **bufs)
{
- return lustre_pack_reply_flags(req, count, lens, bufs, 0);
+ return lustre_pack_reply_flags(req, count, lens, bufs, 0);
}
EXPORT_SYMBOL(lustre_pack_reply);
{
__u32 i, offset, buflen, bufcount;
- LASSERT(m != NULL);
+ LASSERT(m != NULL);
+ LASSERT(m->lm_bufcount > 0);
- bufcount = m->lm_bufcount;
- if (unlikely(n >= bufcount)) {
- CDEBUG(D_INFO, "msg %p buffer[%d] not present (count %d)\n",
- m, n, bufcount);
- return NULL;
- }
+ bufcount = m->lm_bufcount;
+ if (unlikely(n >= bufcount)) {
+ CDEBUG(D_INFO, "msg %p buffer[%d] not present (count %d)\n",
+ m, n, bufcount);
+ return NULL;
+ }
- buflen = m->lm_buflens[n];
- if (unlikely(buflen < min_size)) {
- CERROR("msg %p buffer[%d] size %d too small "
- "(required %d, opc=%d)\n", m, n, buflen, min_size,
- n == MSG_PTLRPC_BODY_OFF ? -1 : lustre_msg_get_opc(m));
- return NULL;
- }
+ buflen = m->lm_buflens[n];
+ if (unlikely(buflen < min_size)) {
+ CERROR("msg %p buffer[%d] size %d too small "
+ "(required %d, opc=%d)\n", m, n, buflen, min_size,
+ n == MSG_PTLRPC_BODY_OFF ? -1 : lustre_msg_get_opc(m));
+ return NULL;
+ }
- offset = lustre_msg_hdr_size_v2(bufcount);
- for (i = 0; i < n; i++)
- offset += cfs_size_round(m->lm_buflens[i]);
+ offset = lustre_msg_hdr_size_v2(bufcount);
+ for (i = 0; i < n; i++)
+ offset += cfs_size_round(m->lm_buflens[i]);
- return (char *)m + offset;
+ return (char *)m + offset;
}
void *lustre_msg_buf(struct lustre_msg *m, __u32 n, __u32 min_size)
static int lustre_shrink_msg_v2(struct lustre_msg_v2 *msg, __u32 segment,
unsigned int newlen, int move_data)
{
- char *tail = NULL, *newpos;
- int tail_len = 0, n;
+ char *tail = NULL, *newpos;
+ int tail_len = 0, n;
- LASSERT(msg);
- LASSERT(msg->lm_bufcount > segment);
- LASSERT(msg->lm_buflens[segment] >= newlen);
+ LASSERT(msg);
+ LASSERT(msg->lm_bufcount > segment);
+ LASSERT(msg->lm_buflens[segment] >= newlen);
- if (msg->lm_buflens[segment] == newlen)
- goto out;
+ if (msg->lm_buflens[segment] == newlen)
+ goto out;
- if (move_data && msg->lm_bufcount > segment + 1) {
- tail = lustre_msg_buf_v2(msg, segment + 1, 0);
- for (n = segment + 1; n < msg->lm_bufcount; n++)
- tail_len += cfs_size_round(msg->lm_buflens[n]);
- }
+ if (move_data && msg->lm_bufcount > segment + 1) {
+ tail = lustre_msg_buf_v2(msg, segment + 1, 0);
+ for (n = segment + 1; n < msg->lm_bufcount; n++)
+ tail_len += cfs_size_round(msg->lm_buflens[n]);
+ }
- msg->lm_buflens[segment] = newlen;
+ msg->lm_buflens[segment] = newlen;
- if (tail && tail_len) {
- newpos = lustre_msg_buf_v2(msg, segment + 1, 0);
- LASSERT(newpos <= tail);
- if (newpos != tail)
- memmove(newpos, tail, tail_len);
- }
+ if (tail && tail_len) {
+ newpos = lustre_msg_buf_v2(msg, segment + 1, 0);
+ LASSERT(newpos <= tail);
+ if (newpos != tail)
+ memmove(newpos, tail, tail_len);
+ }
out:
- return lustre_msg_size_v2(msg->lm_bufcount, msg->lm_buflens);
+ return lustre_msg_size_v2(msg->lm_bufcount, msg->lm_buflens);
}
/*
* after call shrink.
*/
int lustre_shrink_msg(struct lustre_msg *msg, int segment,
- unsigned int newlen, int move_data)
+ unsigned int newlen, int move_data)
{
- switch (msg->lm_magic) {
- case LUSTRE_MSG_MAGIC_V2:
- return lustre_shrink_msg_v2(msg, segment, newlen, move_data);
- default:
- LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
- }
+ switch (msg->lm_magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ return lustre_shrink_msg_v2(msg, segment, newlen, move_data);
+ default:
+ LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
+ }
}
EXPORT_SYMBOL(lustre_shrink_msg);
+static int lustre_grow_msg_v2(struct lustre_msg_v2 *msg, __u32 segment,
+ unsigned int newlen)
+{
+ char *tail = NULL, *newpos;
+ int tail_len = 0, n;
+
+ LASSERT(msg);
+ LASSERT(msg->lm_bufcount > segment);
+ LASSERT(msg->lm_buflens[segment] <= newlen);
+
+ if (msg->lm_buflens[segment] == newlen)
+ goto out;
+
+ if (msg->lm_bufcount > segment + 1) {
+ tail = lustre_msg_buf_v2(msg, segment + 1, 0);
+ for (n = segment + 1; n < msg->lm_bufcount; n++)
+ tail_len += cfs_size_round(msg->lm_buflens[n]);
+ }
+
+ msg->lm_buflens[segment] = newlen;
+
+ if (tail && tail_len) {
+ newpos = lustre_msg_buf_v2(msg, segment + 1, 0);
+ memmove(newpos, tail, tail_len);
+ }
+out:
+ return lustre_msg_size_v2(msg->lm_bufcount, msg->lm_buflens);
+}
+
+/*
+ * for @msg, grow @segment to size @newlen.
+ * Always move higher buffer forward.
+ *
+ * return new msg size after growing.
+ *
+ * CAUTION:
+ * - caller must make sure there is enough space in allocated message buffer
+ * - caller should NOT keep pointers to msg buffers which higher than @segment
+ * after call shrink.
+ */
+int lustre_grow_msg(struct lustre_msg *msg, int segment, unsigned int newlen)
+{
+ switch (msg->lm_magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ return lustre_grow_msg_v2(msg, segment, newlen);
+ default:
+ LASSERTF(0, "incorrect message magic: %08x\n", msg->lm_magic);
+ }
+}
+EXPORT_SYMBOL(lustre_grow_msg);
+
void lustre_free_reply_state(struct ptlrpc_reply_state *rs)
{
PTLRPC_RS_DEBUG_LRU_DEL(rs);
static int lustre_unpack_msg_v2(struct lustre_msg_v2 *m, int len)
{
- int swabbed, required_len, i;
-
- /* Now we know the sender speaks my language. */
- required_len = lustre_msg_hdr_size_v2(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;
- }
-
- swabbed = (m->lm_magic == LUSTRE_MSG_MAGIC_V2_SWABBED);
-
- if (swabbed) {
- __swab32s(&m->lm_magic);
- __swab32s(&m->lm_bufcount);
- __swab32s(&m->lm_secflvr);
- __swab32s(&m->lm_repsize);
- __swab32s(&m->lm_cksum);
- __swab32s(&m->lm_flags);
- CLASSERT(offsetof(typeof(*m), lm_padding_2) != 0);
- CLASSERT(offsetof(typeof(*m), lm_padding_3) != 0);
- }
-
- required_len = lustre_msg_hdr_size_v2(m->lm_bufcount);
- if (len < required_len) {
- /* didn't receive all the buffer lengths */
- CERROR ("message length %d too small for %d buflens\n",
- len, m->lm_bufcount);
- return -EINVAL;
- }
-
- for (i = 0; i < m->lm_bufcount; i++) {
- if (swabbed)
- __swab32s(&m->lm_buflens[i]);
- required_len += cfs_size_round(m->lm_buflens[i]);
- }
-
- if (len < required_len) {
- CERROR("len: %d, required_len %d\n", len, required_len);
- CERROR("bufcount: %d\n", m->lm_bufcount);
- for (i = 0; i < m->lm_bufcount; i++)
- CERROR("buffer %d length %d\n", i, m->lm_buflens[i]);
- return -EINVAL;
- }
-
- return swabbed;
+ int swabbed, required_len, i, buflen;
+
+ /* Now we know the sender speaks my language. */
+ required_len = lustre_msg_hdr_size_v2(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;
+ }
+
+ swabbed = (m->lm_magic == LUSTRE_MSG_MAGIC_V2_SWABBED);
+
+ if (swabbed) {
+ __swab32s(&m->lm_magic);
+ __swab32s(&m->lm_bufcount);
+ __swab32s(&m->lm_secflvr);
+ __swab32s(&m->lm_repsize);
+ __swab32s(&m->lm_cksum);
+ __swab32s(&m->lm_flags);
+ BUILD_BUG_ON(offsetof(typeof(*m), lm_padding_2) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*m), lm_padding_3) == 0);
+ }
+
+ if (m->lm_bufcount == 0 || m->lm_bufcount > PTLRPC_MAX_BUFCOUNT) {
+ CERROR("message bufcount %d is not valid\n", m->lm_bufcount);
+ return -EINVAL;
+ }
+ required_len = lustre_msg_hdr_size_v2(m->lm_bufcount);
+ if (len < required_len) {
+ /* didn't receive all the buffer lengths */
+ CERROR("message length %d too small for %d buflens\n",
+ len, m->lm_bufcount);
+ return -EINVAL;
+ }
+
+ for (i = 0; i < m->lm_bufcount; i++) {
+ if (swabbed)
+ __swab32s(&m->lm_buflens[i]);
+ buflen = cfs_size_round(m->lm_buflens[i]);
+ if (buflen < 0 || buflen > PTLRPC_MAX_BUFLEN) {
+ CERROR("buffer %d length %d is not valid\n", i, buflen);
+ return -EINVAL;
+ }
+ required_len += buflen;
+ }
+ if (len < required_len || required_len > PTLRPC_MAX_BUFLEN) {
+ CERROR("len: %d, required_len %d, bufcount: %d\n",
+ len, required_len, m->lm_bufcount);
+ for (i = 0; i < m->lm_bufcount; i++)
+ CERROR("buffer %d length %d\n", i, m->lm_buflens[i]);
+ return -EINVAL;
+ }
+
+ return swabbed;
}
int __lustre_unpack_msg(struct lustre_msg *m, int len)
{
- int required_len, rc;
- ENTRY;
+ int required_len, rc;
- /* 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 = offsetof(struct lustre_msg, lm_magic) +
- sizeof(m->lm_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);
- }
+ 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 = offsetof(struct lustre_msg, lm_magic) +
+ sizeof(m->lm_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);
+ }
- rc = lustre_unpack_msg_v2(m, len);
+ rc = lustre_unpack_msg_v2(m, len);
- RETURN(rc);
+ RETURN(rc);
}
EXPORT_SYMBOL(__lustre_unpack_msg);
int ptlrpc_unpack_req_msg(struct ptlrpc_request *req, int len)
{
- int rc;
- rc = __lustre_unpack_msg(req->rq_reqmsg, len);
- if (rc == 1) {
- lustre_set_req_swabbed(req, MSG_PTLRPC_HEADER_OFF);
- rc = 0;
- }
- return rc;
+ int rc;
+
+ rc = __lustre_unpack_msg(req->rq_reqmsg, len);
+ if (rc == 1) {
+ lustre_set_req_swabbed(req, MSG_PTLRPC_HEADER_OFF);
+ rc = 0;
+ }
+ return rc;
}
int ptlrpc_unpack_rep_msg(struct ptlrpc_request *req, int len)
{
- int rc;
- rc = __lustre_unpack_msg(req->rq_repmsg, len);
- if (rc == 1) {
- lustre_set_rep_swabbed(req, MSG_PTLRPC_HEADER_OFF);
- rc = 0;
- }
- return rc;
+ int rc;
+
+ rc = __lustre_unpack_msg(req->rq_repmsg, len);
+ if (rc == 1) {
+ lustre_set_rep_swabbed(req, MSG_PTLRPC_HEADER_OFF);
+ rc = 0;
+ }
+ return rc;
}
static inline int lustre_unpack_ptlrpc_body_v2(struct ptlrpc_request *req,
- const int inout, int offset)
+ const int inout, int offset)
{
- struct ptlrpc_body *pb;
- struct lustre_msg_v2 *m = inout ? req->rq_reqmsg : req->rq_repmsg;
+ struct ptlrpc_body *pb;
+ struct lustre_msg_v2 *m = inout ? req->rq_reqmsg : req->rq_repmsg;
pb = lustre_msg_buf_v2(m, offset, sizeof(struct ptlrpc_body_v2));
- if (!pb) {
- CERROR("error unpacking ptlrpc body\n");
- return -EFAULT;
- }
- if (ptlrpc_buf_need_swab(req, inout, offset)) {
- lustre_swab_ptlrpc_body(pb);
- ptlrpc_buf_set_swabbed(req, inout, offset);
- }
-
- if ((pb->pb_version & ~LUSTRE_VERSION_MASK) != PTLRPC_MSG_VERSION) {
- CERROR("wrong lustre_msg version %08x\n", pb->pb_version);
- return -EINVAL;
- }
+ if (!pb) {
+ CERROR("error unpacking ptlrpc body\n");
+ return -EFAULT;
+ }
+ if (ptlrpc_buf_need_swab(req, inout, offset)) {
+ lustre_swab_ptlrpc_body(pb);
+ ptlrpc_buf_set_swabbed(req, inout, offset);
+ }
+
+ if ((pb->pb_version & ~LUSTRE_VERSION_MASK) != PTLRPC_MSG_VERSION) {
+ CERROR("wrong lustre_msg version %08x\n", pb->pb_version);
+ return -EINVAL;
+ }
if (!inout)
pb->pb_status = ptlrpc_status_ntoh(pb->pb_status);
- return 0;
+ return 0;
}
int lustre_unpack_req_ptlrpc_body(struct ptlrpc_request *req, int offset)
{
- switch (req->rq_reqmsg->lm_magic) {
- case LUSTRE_MSG_MAGIC_V2:
- return lustre_unpack_ptlrpc_body_v2(req, 1, offset);
- default:
- CERROR("bad lustre msg magic: %08x\n",
- req->rq_reqmsg->lm_magic);
- return -EINVAL;
- }
+ switch (req->rq_reqmsg->lm_magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ return lustre_unpack_ptlrpc_body_v2(req, 1, offset);
+ default:
+ CERROR("bad lustre msg magic: %08x\n",
+ req->rq_reqmsg->lm_magic);
+ return -EINVAL;
+ }
}
int lustre_unpack_rep_ptlrpc_body(struct ptlrpc_request *req, int offset)
{
- switch (req->rq_repmsg->lm_magic) {
- case LUSTRE_MSG_MAGIC_V2:
- return lustre_unpack_ptlrpc_body_v2(req, 0, offset);
- default:
- CERROR("bad lustre msg magic: %08x\n",
- req->rq_repmsg->lm_magic);
- return -EINVAL;
- }
+ switch (req->rq_repmsg->lm_magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ return lustre_unpack_ptlrpc_body_v2(req, 0, offset);
+ default:
+ CERROR("bad lustre msg magic: %08x\n",
+ req->rq_repmsg->lm_magic);
+ return -EINVAL;
+ }
}
static inline __u32 lustre_msg_buflen_v2(struct lustre_msg_v2 *m, __u32 n)
{
- if (n >= m->lm_bufcount)
- return 0;
+ if (n >= m->lm_bufcount)
+ return 0;
- return m->lm_buflens[n];
+ return m->lm_buflens[n];
}
/**
*/
__u32 lustre_msg_buflen(struct lustre_msg *m, __u32 n)
{
- switch (m->lm_magic) {
- case LUSTRE_MSG_MAGIC_V2:
- return lustre_msg_buflen_v2(m, n);
- default:
- CERROR("incorrect message magic: %08x\n", m->lm_magic);
+ switch (m->lm_magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ return lustre_msg_buflen_v2(m, n);
+ default:
+ CERROR("incorrect message magic: %08x\n", m->lm_magic);
return 0;
- }
+ }
}
EXPORT_SYMBOL(lustre_msg_buflen);
static inline void
lustre_msg_set_buflen_v2(struct lustre_msg_v2 *m, __u32 n, __u32 len)
{
- if (n >= m->lm_bufcount)
- LBUG();
+ if (n >= m->lm_bufcount)
+ LBUG();
- m->lm_buflens[n] = len;
+ m->lm_buflens[n] = len;
}
void lustre_msg_set_buflen(struct lustre_msg *m, __u32 n, __u32 len)
{
- switch (m->lm_magic) {
- case LUSTRE_MSG_MAGIC_V2:
- lustre_msg_set_buflen_v2(m, n, len);
- return;
- default:
- LASSERTF(0, "incorrect message magic: %08x\n", m->lm_magic);
- }
+ switch (m->lm_magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ lustre_msg_set_buflen_v2(m, n, len);
+ return;
+ default:
+ LASSERTF(0, "incorrect message magic: %08x\n", m->lm_magic);
+ }
}
-/* NB return the bufcount for lustre_msg_v2 format, so if message is packed
- * in V1 format, the result is one bigger. (add struct ptlrpc_body). */
+/*
+ * NB return the bufcount for lustre_msg_v2 format, so if message is packed
+ * in V1 format, the result is one bigger. (add struct ptlrpc_body).
+ */
__u32 lustre_msg_bufcount(struct lustre_msg *m)
{
- switch (m->lm_magic) {
- case LUSTRE_MSG_MAGIC_V2:
- return m->lm_bufcount;
- default:
- CERROR("incorrect message magic: %08x\n", m->lm_magic);
+ switch (m->lm_magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ return m->lm_bufcount;
+ default:
+ CERROR("incorrect message magic: %08x\n", m->lm_magic);
return 0;
- }
+ }
}
char *lustre_msg_string(struct lustre_msg *m, __u32 index, __u32 max_len)
char *str;
__u32 slen, blen;
- switch (m->lm_magic) {
- case LUSTRE_MSG_MAGIC_V2:
- str = lustre_msg_buf_v2(m, index, 0);
- blen = lustre_msg_buflen_v2(m, index);
- break;
- default:
- LASSERTF(0, "incorrect message magic: %08x\n", m->lm_magic);
- }
-
- if (str == NULL) {
- CERROR ("can't unpack string in msg %p buffer[%d]\n", m, index);
- return NULL;
- }
-
- 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;
+ switch (m->lm_magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ str = lustre_msg_buf_v2(m, index, 0);
+ blen = lustre_msg_buflen_v2(m, index);
+ break;
+ default:
+ LASSERTF(0, "incorrect message magic: %08x\n", m->lm_magic);
+ }
+
+ if (str == NULL) {
+ CERROR("can't unpack string in msg %p buffer[%d]\n", m, index);
+ return NULL;
+ }
+
+ 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 (blen > PTLRPC_MAX_BUFLEN) {
+ CERROR("buffer length of msg %p buffer[%d] is invalid(%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 */
CERROR("invalid msg %p: no ptlrpc body!\n", msg);
}
- /* no break */
+ /* fallthrough */
default:
- /* flags might be printed in debug code while message
- * uninitialized */
+ /*
+ * flags might be printed in debug code while message
+ * uninitialized
+ */
return 0;
}
}
CERROR("invalid msg %p: no ptlrpc body!\n", msg);
}
- /* no break */
+ /* fallthrough */
default:
return 0;
}
return pb->pb_status;
CERROR("invalid msg %p: no ptlrpc body!\n", msg);
}
- /* no break */
+ /* fallthrough */
default:
- /* status might be printed in debug code while message
- * uninitialized */
+ /*
+ * status might be printed in debug code while message
+ * uninitialized
+ */
return -EINVAL;
}
}
}
}
-__u32 lustre_msg_get_timeout(struct lustre_msg *msg)
+timeout_t lustre_msg_get_timeout(struct lustre_msg *msg)
{
switch (msg->lm_magic) {
case LUSTRE_MSG_MAGIC_V2: {
struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
+
if (pb == NULL) {
CERROR("invalid msg %p: no ptlrpc body!\n", msg);
return 0;
}
}
-__u32 lustre_msg_get_service_time(struct lustre_msg *msg)
+timeout_t lustre_msg_get_service_timeout(struct lustre_msg *msg)
{
switch (msg->lm_magic) {
case LUSTRE_MSG_MAGIC_V2: {
struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
+
if (pb == NULL) {
CERROR("invalid msg %p: no ptlrpc body!\n", msg);
return 0;
{
switch (msg->lm_magic) {
case LUSTRE_MSG_MAGIC_V2: {
- struct ptlrpc_body *pb =
- lustre_msg_buf_v2(msg, MSG_PTLRPC_BODY_OFF,
+ struct ptlrpc_body *pb;
+
+ /* the old pltrpc_body_v2 is smaller; doesn't include jobid */
+ if (msg->lm_buflens[MSG_PTLRPC_BODY_OFF] <
+ sizeof(struct ptlrpc_body))
+ return NULL;
+
+ pb = lustre_msg_buf_v2(msg, MSG_PTLRPC_BODY_OFF,
sizeof(struct ptlrpc_body));
if (!pb)
return NULL;
}
}
-__u32 lustre_msg_calc_cksum(struct lustre_msg *msg)
+__u32 lustre_msg_calc_cksum(struct lustre_msg *msg, __u32 buf)
{
switch (msg->lm_magic) {
case LUSTRE_MSG_MAGIC_V2: {
- struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
- __u32 len = lustre_msg_buflen(msg, MSG_PTLRPC_BODY_OFF);
+ struct ptlrpc_body *pb = lustre_msg_buf_v2(msg, buf, 0);
+ __u32 len = lustre_msg_buflen(msg, buf);
+ __u32 crc;
+#if IS_ENABLED(CONFIG_CRC32)
+ /* about 10x faster than crypto_hash for small buffers */
+ crc = crc32_le(~(__u32)0, (unsigned char *)pb, len);
+#elif IS_ENABLED(CONFIG_CRYPTO_CRC32)
unsigned int hsize = 4;
- __u32 crc;
- LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
cfs_crypto_hash_digest(CFS_HASH_ALG_CRC32, (unsigned char *)pb,
len, NULL, 0, (unsigned char *)&crc,
&hsize);
+#else
+#error "need either CONFIG_CRC32 or CONFIG_CRYPTO_CRC32 enabled in the kernel"
+#endif
return crc;
}
default:
}
}
-void lustre_msg_set_timeout(struct lustre_msg *msg, __u32 timeout)
+void lustre_msg_set_timeout(struct lustre_msg *msg, timeout_t timeout)
{
switch (msg->lm_magic) {
case LUSTRE_MSG_MAGIC_V2: {
struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
+
+ LASSERT(timeout >= 0);
LASSERTF(pb != NULL, "invalid msg %p: no ptlrpc body!\n", msg);
pb->pb_timeout = timeout;
return;
}
}
-void lustre_msg_set_service_time(struct lustre_msg *msg, __u32 service_time)
+void lustre_msg_set_service_timeout(struct lustre_msg *msg,
+ timeout_t service_timeout)
{
switch (msg->lm_magic) {
case LUSTRE_MSG_MAGIC_V2: {
struct ptlrpc_body *pb = lustre_msg_ptlrpc_body(msg);
+
+ LASSERT(service_timeout >= 0);
LASSERTF(pb, "invalid msg %p: no ptlrpc body!\n", msg);
- pb->pb_service_time = service_time;
+ pb->pb_service_time = service_timeout;
return;
}
default:
void ptlrpc_request_set_replen(struct ptlrpc_request *req)
{
- int count = req_capsule_filled_sizes(&req->rq_pill, RCL_SERVER);
+ int count = req_capsule_filled_sizes(&req->rq_pill, RCL_SERVER);
- req->rq_replen = lustre_msg_size(req->rq_reqmsg->lm_magic, count,
- req->rq_pill.rc_area[RCL_SERVER]);
- if (req->rq_reqmsg->lm_magic == LUSTRE_MSG_MAGIC_V2)
- req->rq_reqmsg->lm_repsize = req->rq_replen;
+ req->rq_replen = lustre_msg_size(req->rq_reqmsg->lm_magic, count,
+ req->rq_pill.rc_area[RCL_SERVER]);
+ if (req->rq_reqmsg->lm_magic == LUSTRE_MSG_MAGIC_V2)
+ req->rq_reqmsg->lm_repsize = req->rq_replen;
}
EXPORT_SYMBOL(ptlrpc_request_set_replen);
void ptlrpc_req_set_repsize(struct ptlrpc_request *req, int count, __u32 *lens)
{
- req->rq_replen = lustre_msg_size(req->rq_reqmsg->lm_magic, count, lens);
- if (req->rq_reqmsg->lm_magic == LUSTRE_MSG_MAGIC_V2)
- req->rq_reqmsg->lm_repsize = req->rq_replen;
+ req->rq_replen = lustre_msg_size(req->rq_reqmsg->lm_magic, count, lens);
+ if (req->rq_reqmsg->lm_magic == LUSTRE_MSG_MAGIC_V2)
+ req->rq_reqmsg->lm_repsize = req->rq_replen;
}
/**
size_t vallen, void *val,
struct ptlrpc_request_set *set)
{
- struct ptlrpc_request *req;
- char *tmp;
- int rc;
- ENTRY;
-
- req = ptlrpc_request_alloc(imp, &RQF_OBD_SET_INFO);
- if (req == NULL)
- RETURN(-ENOMEM);
-
- req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_KEY,
- RCL_CLIENT, keylen);
- req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_VAL,
- RCL_CLIENT, vallen);
- rc = ptlrpc_request_pack(req, version, opcode);
- if (rc) {
- ptlrpc_request_free(req);
- RETURN(rc);
- }
-
- tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
- memcpy(tmp, key, keylen);
- tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_VAL);
- memcpy(tmp, val, vallen);
-
- ptlrpc_request_set_replen(req);
-
- if (set) {
- ptlrpc_set_add_req(set, req);
- ptlrpc_check_set(NULL, set);
- } else {
- rc = ptlrpc_queue_wait(req);
- ptlrpc_req_finished(req);
- }
-
- RETURN(rc);
+ struct ptlrpc_request *req;
+ char *tmp;
+ int rc;
+
+ ENTRY;
+
+ req = ptlrpc_request_alloc(imp, KEY_IS(KEY_CHANGELOG_CLEAR) ?
+ &RQF_MDT_SET_INFO :
+ &RQF_OBD_SET_INFO);
+ if (req == NULL)
+ RETURN(-ENOMEM);
+
+ req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_KEY,
+ RCL_CLIENT, keylen);
+ req_capsule_set_size(&req->rq_pill, &RMF_SETINFO_VAL,
+ RCL_CLIENT, vallen);
+ rc = ptlrpc_request_pack(req, version, opcode);
+ if (rc) {
+ ptlrpc_request_free(req);
+ RETURN(rc);
+ }
+
+ if (KEY_IS(KEY_CHANGELOG_CLEAR))
+ do_pack_body(req);
+
+ tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_KEY);
+ memcpy(tmp, key, keylen);
+ tmp = req_capsule_client_get(&req->rq_pill, &RMF_SETINFO_VAL);
+ memcpy(tmp, val, vallen);
+
+ ptlrpc_request_set_replen(req);
+
+ if (set) {
+ ptlrpc_set_add_req(set, req);
+ ptlrpc_check_set(NULL, set);
+ } else {
+ rc = ptlrpc_queue_wait(req);
+ ptlrpc_req_finished(req);
+ }
+
+ RETURN(rc);
}
EXPORT_SYMBOL(do_set_info_async);
__swab32s(&body->pb_status);
__swab64s(&body->pb_last_xid);
__swab16s(&body->pb_tag);
- CLASSERT(offsetof(typeof(*body), pb_padding0) != 0);
- CLASSERT(offsetof(typeof(*body), pb_padding1) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*body), pb_padding0) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*body), pb_padding1) == 0);
__swab64s(&body->pb_last_committed);
__swab64s(&body->pb_transno);
__swab32s(&body->pb_flags);
__swab64s(&body->pb_pre_versions[2]);
__swab64s(&body->pb_pre_versions[3]);
__swab64s(&body->pb_mbits);
- CLASSERT(offsetof(typeof(*body), pb_padding64_0) != 0);
- CLASSERT(offsetof(typeof(*body), pb_padding64_1) != 0);
- CLASSERT(offsetof(typeof(*body), pb_padding64_2) != 0);
- /* While we need to maintain compatibility between
+ BUILD_BUG_ON(offsetof(typeof(*body), pb_padding64_0) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*body), pb_padding64_1) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*body), pb_padding64_2) == 0);
+ /*
+ * While we need to maintain compatibility between
* clients and servers without ptlrpc_body_v2 (< 2.3)
* do not swab any fields beyond pb_jobid, as we are
* using this swab function for both ptlrpc_body
- * and ptlrpc_body_v2. */
+ * and ptlrpc_body_v2.
+ */
/* pb_jobid is an ASCII string and should not be swabbed */
- CLASSERT(offsetof(typeof(*body), pb_jobid) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*body), pb_jobid) == 0);
}
void lustre_swab_connect(struct obd_connect_data *ocd)
{
- __swab64s(&ocd->ocd_connect_flags);
- __swab32s(&ocd->ocd_version);
- __swab32s(&ocd->ocd_grant);
- __swab64s(&ocd->ocd_ibits_known);
- __swab32s(&ocd->ocd_index);
- __swab32s(&ocd->ocd_brw_size);
- /* ocd_blocksize and ocd_inodespace don't need to be swabbed because
- * they are 8-byte values */
+ __swab64s(&ocd->ocd_connect_flags);
+ __swab32s(&ocd->ocd_version);
+ __swab32s(&ocd->ocd_grant);
+ __swab64s(&ocd->ocd_ibits_known);
+ __swab32s(&ocd->ocd_index);
+ __swab32s(&ocd->ocd_brw_size);
+ /*
+ * ocd_blocksize and ocd_inodespace don't need to be swabbed because
+ * they are 8-byte values
+ */
__swab16s(&ocd->ocd_grant_tax_kb);
__swab32s(&ocd->ocd_grant_max_blks);
- __swab64s(&ocd->ocd_transno);
- __swab32s(&ocd->ocd_group);
- __swab32s(&ocd->ocd_cksum_types);
- __swab32s(&ocd->ocd_instance);
- /* Fields after ocd_cksum_types are only accessible by the receiver
- * if the corresponding flag in ocd_connect_flags is set. Accessing
- * any field after ocd_maxbytes on the receiver without a valid flag
- * may result in out-of-bound memory access and kernel oops. */
- if (ocd->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)
- __swab32s(&ocd->ocd_max_easize);
- if (ocd->ocd_connect_flags & OBD_CONNECT_MAXBYTES)
- __swab64s(&ocd->ocd_maxbytes);
+ __swab64s(&ocd->ocd_transno);
+ __swab32s(&ocd->ocd_group);
+ __swab32s(&ocd->ocd_cksum_types);
+ __swab32s(&ocd->ocd_instance);
+ /*
+ * Fields after ocd_cksum_types are only accessible by the receiver
+ * if the corresponding flag in ocd_connect_flags is set. Accessing
+ * any field after ocd_maxbytes on the receiver without a valid flag
+ * may result in out-of-bound memory access and kernel oops.
+ */
+ if (ocd->ocd_connect_flags & OBD_CONNECT_MAX_EASIZE)
+ __swab32s(&ocd->ocd_max_easize);
+ if (ocd->ocd_connect_flags & OBD_CONNECT_MAXBYTES)
+ __swab64s(&ocd->ocd_maxbytes);
if (ocd->ocd_connect_flags & OBD_CONNECT_MULTIMODRPCS)
__swab16s(&ocd->ocd_maxmodrpcs);
- CLASSERT(offsetof(typeof(*ocd), padding0) != 0);
- CLASSERT(offsetof(typeof(*ocd), padding1) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), padding0) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), padding1) == 0);
if (ocd->ocd_connect_flags & OBD_CONNECT_FLAGS2)
__swab64s(&ocd->ocd_connect_flags2);
- CLASSERT(offsetof(typeof(*ocd), padding3) != 0);
- CLASSERT(offsetof(typeof(*ocd), padding4) != 0);
- CLASSERT(offsetof(typeof(*ocd), padding5) != 0);
- CLASSERT(offsetof(typeof(*ocd), padding6) != 0);
- CLASSERT(offsetof(typeof(*ocd), padding7) != 0);
- CLASSERT(offsetof(typeof(*ocd), padding8) != 0);
- CLASSERT(offsetof(typeof(*ocd), padding9) != 0);
- CLASSERT(offsetof(typeof(*ocd), paddingA) != 0);
- CLASSERT(offsetof(typeof(*ocd), paddingB) != 0);
- CLASSERT(offsetof(typeof(*ocd), paddingC) != 0);
- CLASSERT(offsetof(typeof(*ocd), paddingD) != 0);
- CLASSERT(offsetof(typeof(*ocd), paddingE) != 0);
- CLASSERT(offsetof(typeof(*ocd), paddingF) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), padding3) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), padding4) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), padding5) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), padding6) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), padding7) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), padding8) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), padding9) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), paddingA) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), paddingB) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), paddingC) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), paddingD) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), paddingE) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*ocd), paddingF) == 0);
}
static void lustre_swab_ost_layout(struct ost_layout *ol)
__swab32s(&ol->ol_comp_id);
}
-void lustre_swab_obdo (struct obdo *o)
+void lustre_swab_obdo(struct obdo *o)
{
__swab64s(&o->o_valid);
lustre_swab_ost_id(&o->o_oi);
__swab32s(&o->o_gid_h);
__swab64s(&o->o_data_version);
__swab32s(&o->o_projid);
- CLASSERT(offsetof(typeof(*o), o_padding_4) != 0);
- CLASSERT(offsetof(typeof(*o), o_padding_5) != 0);
- CLASSERT(offsetof(typeof(*o), o_padding_6) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*o), o_padding_4) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*o), o_padding_5) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*o), o_padding_6) == 0);
}
EXPORT_SYMBOL(lustre_swab_obdo);
-void lustre_swab_obd_statfs (struct obd_statfs *os)
+void lustre_swab_obd_statfs(struct obd_statfs *os)
{
__swab64s(&os->os_type);
__swab64s(&os->os_blocks);
__swab64s(&os->os_maxbytes);
__swab32s(&os->os_state);
__swab32s(&os->os_fprecreated);
- CLASSERT(offsetof(typeof(*os), os_spare2) != 0);
- CLASSERT(offsetof(typeof(*os), os_spare3) != 0);
- CLASSERT(offsetof(typeof(*os), os_spare4) != 0);
- CLASSERT(offsetof(typeof(*os), os_spare5) != 0);
- CLASSERT(offsetof(typeof(*os), os_spare6) != 0);
- CLASSERT(offsetof(typeof(*os), os_spare7) != 0);
- CLASSERT(offsetof(typeof(*os), os_spare8) != 0);
- CLASSERT(offsetof(typeof(*os), os_spare9) != 0);
+ __swab32s(&os->os_granted);
+ BUILD_BUG_ON(offsetof(typeof(*os), os_spare3) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*os), os_spare4) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*os), os_spare5) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*os), os_spare6) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*os), os_spare7) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*os), os_spare8) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*os), os_spare9) == 0);
}
void lustre_swab_obd_ioobj(struct obd_ioobj *ioo)
__swab32s(&nbr->rnb_flags);
}
-void lustre_swab_ost_body (struct ost_body *b)
+void lustre_swab_ost_body(struct ost_body *b)
{
- lustre_swab_obdo (&b->oa);
+ lustre_swab_obdo(&b->oa);
}
void lustre_swab_ost_last_id(u64 *id)
{
- __swab64s(id);
+ __swab64s(id);
}
void lustre_swab_generic_32s(__u32 *val)
{
- __swab32s(val);
+ __swab32s(val);
}
void lustre_swab_gl_lquota_desc(struct ldlm_gl_lquota_desc *desc)
__swab64s(&desc->gl_hardlimit);
__swab64s(&desc->gl_softlimit);
__swab64s(&desc->gl_time);
- CLASSERT(offsetof(typeof(*desc), gl_pad2) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*desc), gl_pad2) == 0);
}
EXPORT_SYMBOL(lustre_swab_gl_lquota_desc);
{
__swab32s(&desc->lgbd_status);
__swab32s(&desc->lgbd_timeout);
- CLASSERT(offsetof(typeof(*desc), lgbd_padding) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*desc), lgbd_padding) == 0);
}
EXPORT_SYMBOL(lustre_swab_gl_barrier_desc);
{
__swab32s(&lvb->lvb_status);
__swab32s(&lvb->lvb_index);
- CLASSERT(offsetof(typeof(*lvb), lvb_padding) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*lvb), lvb_padding) == 0);
}
EXPORT_SYMBOL(lustre_swab_barrier_lvb);
-void lustre_swab_mdt_body (struct mdt_body *b)
+void lustre_swab_mdt_body(struct mdt_body *b)
{
lustre_swab_lu_fid(&b->mbo_fid1);
lustre_swab_lu_fid(&b->mbo_fid2);
__swab32s(&b->mbo_eadatasize);
__swab32s(&b->mbo_aclsize);
__swab32s(&b->mbo_max_mdsize);
- CLASSERT(offsetof(typeof(*b), mbo_unused3) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*b), mbo_unused3) == 0);
__swab32s(&b->mbo_uid_h);
__swab32s(&b->mbo_gid_h);
__swab32s(&b->mbo_projid);
__swab64s(&b->mbo_dom_size);
__swab64s(&b->mbo_dom_blocks);
- CLASSERT(offsetof(typeof(*b), mbo_padding_8) != 0);
- CLASSERT(offsetof(typeof(*b), mbo_padding_9) != 0);
- CLASSERT(offsetof(typeof(*b), mbo_padding_10) != 0);
+ __swab64s(&b->mbo_btime);
+ BUILD_BUG_ON(offsetof(typeof(*b), mbo_padding_9) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*b), mbo_padding_10) == 0);
}
void lustre_swab_mdt_ioepoch(struct mdt_ioepoch *b)
{
- /* mio_handle is opaque */
- CLASSERT(offsetof(typeof(*b), mio_unused1) != 0);
- CLASSERT(offsetof(typeof(*b), mio_unused2) != 0);
- CLASSERT(offsetof(typeof(*b), mio_padding) != 0);
+ /* mio_open_handle is opaque */
+ BUILD_BUG_ON(offsetof(typeof(*b), mio_unused1) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*b), mio_unused2) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*b), mio_padding) == 0);
}
void lustre_swab_mgs_target_info(struct mgs_target_info *mti)
__swab32s(&mti->mti_flags);
__swab32s(&mti->mti_instance);
__swab32s(&mti->mti_nid_count);
- CLASSERT(sizeof(lnet_nid_t) == sizeof(__u64));
+ BUILD_BUG_ON(sizeof(lnet_nid_t) != sizeof(__u64));
for (i = 0; i < MTI_NIDS_MAX; i++)
__swab64s(&mti->mti_nids[i]);
}
/* mne_nid_(count|type) must be one byte size because we're gonna
* access it w/o swapping. */
- CLASSERT(sizeof(entry->mne_nid_count) == sizeof(__u8));
- CLASSERT(sizeof(entry->mne_nid_type) == sizeof(__u8));
+ BUILD_BUG_ON(sizeof(entry->mne_nid_count) != sizeof(__u8));
+ BUILD_BUG_ON(sizeof(entry->mne_nid_type) != sizeof(__u8));
/* remove this assertion if ipv6 is supported. */
LASSERT(entry->mne_nid_type == 0);
for (i = 0; i < entry->mne_nid_count; i++) {
- CLASSERT(sizeof(lnet_nid_t) == sizeof(__u64));
+ BUILD_BUG_ON(sizeof(lnet_nid_t) != sizeof(__u64));
__swab64s(&entry->u.nids[i]);
}
}
void lustre_swab_mgs_config_body(struct mgs_config_body *body)
{
- __swab64s(&body->mcb_offset);
- __swab32s(&body->mcb_units);
- __swab16s(&body->mcb_type);
+ __swab64s(&body->mcb_offset);
+ __swab32s(&body->mcb_units);
+ __swab16s(&body->mcb_type);
}
void lustre_swab_mgs_config_res(struct mgs_config_res *body)
{
- __swab64s(&body->mcr_offset);
- __swab64s(&body->mcr_size);
+ __swab64s(&body->mcr_offset);
+ __swab64s(&body->mcr_size);
}
-static void lustre_swab_obd_dqinfo (struct obd_dqinfo *i)
+static void lustre_swab_obd_dqinfo(struct obd_dqinfo *i)
{
- __swab64s (&i->dqi_bgrace);
- __swab64s (&i->dqi_igrace);
- __swab32s (&i->dqi_flags);
- __swab32s (&i->dqi_valid);
+ __swab64s(&i->dqi_bgrace);
+ __swab64s(&i->dqi_igrace);
+ __swab32s(&i->dqi_flags);
+ __swab32s(&i->dqi_valid);
}
-static void lustre_swab_obd_dqblk (struct obd_dqblk *b)
+static void lustre_swab_obd_dqblk(struct obd_dqblk *b)
{
- __swab64s (&b->dqb_ihardlimit);
- __swab64s (&b->dqb_isoftlimit);
- __swab64s (&b->dqb_curinodes);
- __swab64s (&b->dqb_bhardlimit);
- __swab64s (&b->dqb_bsoftlimit);
- __swab64s (&b->dqb_curspace);
- __swab64s (&b->dqb_btime);
- __swab64s (&b->dqb_itime);
- __swab32s (&b->dqb_valid);
- CLASSERT(offsetof(typeof(*b), dqb_padding) != 0);
+ __swab64s(&b->dqb_ihardlimit);
+ __swab64s(&b->dqb_isoftlimit);
+ __swab64s(&b->dqb_curinodes);
+ __swab64s(&b->dqb_bhardlimit);
+ __swab64s(&b->dqb_bsoftlimit);
+ __swab64s(&b->dqb_curspace);
+ __swab64s(&b->dqb_btime);
+ __swab64s(&b->dqb_itime);
+ __swab32s(&b->dqb_valid);
+ BUILD_BUG_ON(offsetof(typeof(*b), dqb_padding) == 0);
}
-void lustre_swab_obd_quotactl (struct obd_quotactl *q)
+int lustre_swab_obd_quotactl(struct obd_quotactl *q, __u32 len)
{
- __swab32s (&q->qc_cmd);
- __swab32s (&q->qc_type);
- __swab32s (&q->qc_id);
- __swab32s (&q->qc_stat);
- lustre_swab_obd_dqinfo (&q->qc_dqinfo);
- lustre_swab_obd_dqblk (&q->qc_dqblk);
+ if (unlikely(len <= sizeof(struct obd_quotactl)))
+ return -EOVERFLOW;
+
+ __swab32s(&q->qc_cmd);
+ __swab32s(&q->qc_type);
+ __swab32s(&q->qc_id);
+ __swab32s(&q->qc_stat);
+ lustre_swab_obd_dqinfo(&q->qc_dqinfo);
+ lustre_swab_obd_dqblk(&q->qc_dqblk);
+
+ return len;
}
void lustre_swab_fid2path(struct getinfo_fid2path *gf)
{
- lustre_swab_lu_fid(&gf->gf_fid);
- __swab64s(&gf->gf_recno);
- __swab32s(&gf->gf_linkno);
- __swab32s(&gf->gf_pathlen);
+ lustre_swab_lu_fid(&gf->gf_fid);
+ __swab64s(&gf->gf_recno);
+ __swab32s(&gf->gf_linkno);
+ __swab32s(&gf->gf_pathlen);
}
EXPORT_SYMBOL(lustre_swab_fid2path);
static void lustre_swab_fiemap_extent(struct fiemap_extent *fm_extent)
{
- __swab64s(&fm_extent->fe_logical);
- __swab64s(&fm_extent->fe_physical);
- __swab64s(&fm_extent->fe_length);
- __swab32s(&fm_extent->fe_flags);
- __swab32s(&fm_extent->fe_device);
+ __swab64s(&fm_extent->fe_logical);
+ __swab64s(&fm_extent->fe_physical);
+ __swab64s(&fm_extent->fe_length);
+ __swab32s(&fm_extent->fe_flags);
+ __swab32s(&fm_extent->fe_device);
}
-void lustre_swab_fiemap(struct fiemap *fiemap)
+static void lustre_swab_fiemap_hdr(struct fiemap *fiemap)
{
- __u32 i;
+ __swab64s(&fiemap->fm_start);
+ __swab64s(&fiemap->fm_length);
+ __swab32s(&fiemap->fm_flags);
+ __swab32s(&fiemap->fm_mapped_extents);
+ __swab32s(&fiemap->fm_extent_count);
+ __swab32s(&fiemap->fm_reserved);
+}
+
+int lustre_swab_fiemap(struct fiemap *fiemap, __u32 len)
+{
+ __u32 i, size, count;
- __swab64s(&fiemap->fm_start);
- __swab64s(&fiemap->fm_length);
- __swab32s(&fiemap->fm_flags);
- __swab32s(&fiemap->fm_mapped_extents);
- __swab32s(&fiemap->fm_extent_count);
- __swab32s(&fiemap->fm_reserved);
+ lustre_swab_fiemap_hdr(fiemap);
+
+ size = fiemap_count_to_size(fiemap->fm_mapped_extents);
+ count = fiemap->fm_mapped_extents;
+ if (unlikely(size > len)) {
+ count = (len - sizeof(struct fiemap)) /
+ sizeof(struct fiemap_extent);
+ fiemap->fm_mapped_extents = count;
+ size = -EOVERFLOW;
+ }
+ /* still swab extents as we cannot yet pass rc to callers */
+ for (i = 0; i < count; i++)
+ lustre_swab_fiemap_extent(&fiemap->fm_extents[i]);
- for (i = 0; i < fiemap->fm_mapped_extents; i++)
- lustre_swab_fiemap_extent(&fiemap->fm_extents[i]);
+ return size;
+}
+
+void lustre_swab_fiemap_info_key(struct ll_fiemap_info_key *fiemap_info)
+{
+ lustre_swab_obdo(&fiemap_info->lfik_oa);
+ lustre_swab_fiemap_hdr(&fiemap_info->lfik_fiemap);
}
void lustre_swab_idx_info(struct idx_info *ii)
__swab32s(&rr->rr_flags);
__swab32s(&rr->rr_flags_h);
__swab32s(&rr->rr_umask);
+ __swab16s(&rr->rr_mirror_id);
- CLASSERT(offsetof(typeof(*rr), rr_padding_4) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*rr), rr_padding_4) == 0);
};
-void lustre_swab_lov_desc (struct lov_desc *ld)
+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);
- __swab32s (&ld->ld_pattern);
- __swab64s (&ld->ld_default_stripe_size);
- __swab64s (&ld->ld_default_stripe_offset);
- __swab32s (&ld->ld_qos_maxage);
- /* uuid endian insensitive */
+ __swab32s(&ld->ld_tgt_count);
+ __swab32s(&ld->ld_active_tgt_count);
+ __swab32s(&ld->ld_default_stripe_count);
+ __swab32s(&ld->ld_pattern);
+ __swab64s(&ld->ld_default_stripe_size);
+ __swab64s(&ld->ld_default_stripe_offset);
+ __swab32s(&ld->ld_qos_maxage);
+ /* uuid endian insensitive */
}
EXPORT_SYMBOL(lustre_swab_lov_desc);
-void lustre_swab_lmv_desc (struct lmv_desc *ld)
+void lustre_swab_lmv_desc(struct lmv_desc *ld)
{
- __swab32s (&ld->ld_tgt_count);
- __swab32s (&ld->ld_active_tgt_count);
- __swab32s (&ld->ld_default_stripe_count);
- __swab32s (&ld->ld_pattern);
- __swab64s (&ld->ld_default_hash_size);
- __swab32s (&ld->ld_qos_maxage);
- /* uuid endian insensitive */
+ __swab32s(&ld->ld_tgt_count);
+ __swab32s(&ld->ld_active_tgt_count);
+ __swab32s(&ld->ld_default_stripe_count);
+ __swab32s(&ld->ld_pattern);
+ __swab64s(&ld->ld_default_hash_size);
+ __swab32s(&ld->ld_qos_maxage);
+ /* uuid endian insensitive */
}
/* This structure is always in little-endian */
void lustre_swab_lmv_user_md(struct lmv_user_md *lum)
{
- __u32 count = lum->lum_stripe_count;
+ __u32 count;
+ if (lum->lum_magic == LMV_MAGIC_FOREIGN) {
+ __swab32s(&lum->lum_magic);
+ __swab32s(&((struct lmv_foreign_md *)lum)->lfm_length);
+ __swab32s(&((struct lmv_foreign_md *)lum)->lfm_type);
+ __swab32s(&((struct lmv_foreign_md *)lum)->lfm_flags);
+ return;
+ }
+
+ count = lum->lum_stripe_count;
__swab32s(&lum->lum_magic);
__swab32s(&lum->lum_stripe_count);
__swab32s(&lum->lum_stripe_offset);
__swab32s(&lum->lum_hash_type);
__swab32s(&lum->lum_type);
- CLASSERT(offsetof(typeof(*lum), lum_padding1) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*lum), lum_padding1) == 0);
switch (lum->lum_magic) {
case LMV_USER_MAGIC_SPECIFIC:
count = lum->lum_stripe_count;
+ /* fallthrough */
case __swab32(LMV_USER_MAGIC_SPECIFIC):
lustre_swab_lmv_user_md_objects(lum->lum_objects, count);
break;
CDEBUG(lvl, "\tentry %d:\n", i);
CDEBUG(lvl, "\tlcme_id: %#x\n", ent->lcme_id);
CDEBUG(lvl, "\tlcme_flags: %#x\n", ent->lcme_flags);
+ if (ent->lcme_flags & LCME_FL_NOSYNC)
+ CDEBUG(lvl, "\tlcme_timestamp: %llu\n",
+ ent->lcme_timestamp);
CDEBUG(lvl, "\tlcme_extent.e_start: %llu\n",
ent->lcme_extent.e_start);
CDEBUG(lvl, "\tlcme_extent.e_end: %llu\n",
void lustre_swab_lov_user_md_v1(struct lov_user_md_v1 *lum)
{
- ENTRY;
- CDEBUG(D_IOCTL, "swabbing lov_user_md v1\n");
- lustre_swab_lov_user_md_common(lum);
- EXIT;
+ ENTRY;
+ CDEBUG(D_IOCTL, "swabbing lov_user_md v1\n");
+ lustre_swab_lov_user_md_common(lum);
+ EXIT;
}
EXPORT_SYMBOL(lustre_swab_lov_user_md_v1);
void lustre_swab_lov_user_md_v3(struct lov_user_md_v3 *lum)
{
- ENTRY;
- CDEBUG(D_IOCTL, "swabbing lov_user_md v3\n");
- lustre_swab_lov_user_md_common((struct lov_user_md_v1 *)lum);
- /* lmm_pool_name nothing to do with char */
- EXIT;
+ ENTRY;
+ CDEBUG(D_IOCTL, "swabbing lov_user_md v3\n");
+ lustre_swab_lov_user_md_common((struct lov_user_md_v1 *)lum);
+ /* lmm_pool_name nothing to do with char */
+ EXIT;
}
EXPORT_SYMBOL(lustre_swab_lov_user_md_v3);
__swab16s(&lum->lcm_flags);
__swab16s(&lum->lcm_entry_count);
__swab16s(&lum->lcm_mirror_count);
- CLASSERT(offsetof(typeof(*lum), lcm_padding1) != 0);
- CLASSERT(offsetof(typeof(*lum), lcm_padding2) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*lum), lcm_padding1) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*lum), lcm_padding2) == 0);
for (i = 0; i < ent_count; i++) {
ent = &lum->lcm_entries[i];
}
__swab32s(&ent->lcme_id);
__swab32s(&ent->lcme_flags);
+ __swab64s(&ent->lcme_timestamp);
__swab64s(&ent->lcme_extent.e_start);
__swab64s(&ent->lcme_extent.e_end);
__swab32s(&ent->lcme_offset);
__swab32s(&ent->lcme_size);
__swab32s(&ent->lcme_layout_gen);
- CLASSERT(offsetof(typeof(*ent), lcme_padding_1) != 0);
- CLASSERT(offsetof(typeof(*ent), lcme_padding_2) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*ent), lcme_padding_1) == 0);
v1 = (struct lov_user_md_v1 *)((char *)lum + off);
stripe_count = v1->lmm_stripe_count;
}
EXPORT_SYMBOL(lustre_swab_lov_comp_md_v1);
+void lustre_swab_lov_user_md_objects(struct lov_user_ost_data *lod,
+ int stripe_count)
+{
+ int i;
+
+ ENTRY;
+ for (i = 0; i < stripe_count; i++) {
+ lustre_swab_ost_id(&(lod[i].l_ost_oi));
+ __swab32s(&(lod[i].l_ost_gen));
+ __swab32s(&(lod[i].l_ost_idx));
+ }
+ EXIT;
+}
+EXPORT_SYMBOL(lustre_swab_lov_user_md_objects);
+
+void lustre_swab_lov_user_md(struct lov_user_md *lum, size_t size)
+{
+ struct lov_user_md_v1 *v1;
+ struct lov_user_md_v3 *v3;
+ struct lov_foreign_md *lfm;
+ __u16 stripe_count;
+ ENTRY;
+
+ CDEBUG(D_IOCTL, "swabbing lov_user_md\n");
+ switch (lum->lmm_magic) {
+ case __swab32(LOV_MAGIC_V1):
+ case LOV_USER_MAGIC_V1:
+ {
+ v1 = (struct lov_user_md_v1 *)lum;
+ stripe_count = v1->lmm_stripe_count;
+
+ if (lum->lmm_magic != LOV_USER_MAGIC_V1)
+ __swab16s(&stripe_count);
+
+ lustre_swab_lov_user_md_v1(v1);
+ if (size > sizeof(*v1))
+ lustre_swab_lov_user_md_objects(v1->lmm_objects,
+ stripe_count);
+
+ break;
+ }
+ case __swab32(LOV_MAGIC_V3):
+ case LOV_USER_MAGIC_V3:
+ {
+ v3 = (struct lov_user_md_v3 *)lum;
+ stripe_count = v3->lmm_stripe_count;
+
+ if (lum->lmm_magic != LOV_USER_MAGIC_V3)
+ __swab16s(&stripe_count);
+
+ lustre_swab_lov_user_md_v3(v3);
+ if (size > sizeof(*v3))
+ lustre_swab_lov_user_md_objects(v3->lmm_objects,
+ stripe_count);
+ break;
+ }
+ case __swab32(LOV_USER_MAGIC_SPECIFIC):
+ case LOV_USER_MAGIC_SPECIFIC:
+ {
+ v3 = (struct lov_user_md_v3 *)lum;
+ stripe_count = v3->lmm_stripe_count;
+
+ if (lum->lmm_magic != LOV_USER_MAGIC_SPECIFIC)
+ __swab16s(&stripe_count);
+
+ lustre_swab_lov_user_md_v3(v3);
+ lustre_swab_lov_user_md_objects(v3->lmm_objects, stripe_count);
+ break;
+ }
+ case __swab32(LOV_MAGIC_COMP_V1):
+ case LOV_USER_MAGIC_COMP_V1:
+ lustre_swab_lov_comp_md_v1((struct lov_comp_md_v1 *)lum);
+ break;
+ case __swab32(LOV_MAGIC_FOREIGN):
+ case LOV_USER_MAGIC_FOREIGN:
+ {
+ lfm = (struct lov_foreign_md *)lum;
+ __swab32s(&lfm->lfm_magic);
+ __swab32s(&lfm->lfm_length);
+ __swab32s(&lfm->lfm_type);
+ __swab32s(&lfm->lfm_flags);
+ break;
+ }
+ default:
+ CDEBUG(D_IOCTL, "Invalid LOV magic %08x\n", lum->lmm_magic);
+ }
+}
+EXPORT_SYMBOL(lustre_swab_lov_user_md);
+
void lustre_swab_lov_mds_md(struct lov_mds_md *lmm)
{
ENTRY;
}
EXPORT_SYMBOL(lustre_swab_lov_mds_md);
-void lustre_swab_lov_user_md_objects(struct lov_user_ost_data *lod,
- int stripe_count)
-{
- int i;
- ENTRY;
- for (i = 0; i < stripe_count; i++) {
- lustre_swab_ost_id(&(lod[i].l_ost_oi));
- __swab32s(&(lod[i].l_ost_gen));
- __swab32s(&(lod[i].l_ost_idx));
- }
- EXIT;
-}
-EXPORT_SYMBOL(lustre_swab_lov_user_md_objects);
-
-void lustre_swab_ldlm_res_id (struct ldlm_res_id *id)
+void lustre_swab_ldlm_res_id(struct ldlm_res_id *id)
{
- int i;
+ int i;
- for (i = 0; i < RES_NAME_SIZE; i++)
- __swab64s (&id->name[i]);
+ for (i = 0; i < RES_NAME_SIZE; i++)
+ __swab64s(&id->name[i]);
}
void lustre_swab_ldlm_policy_data(union ldlm_wire_policy_data *d)
{
/* the lock data is a union and the first two fields are always an
* extent so it's ok to process an LDLM_EXTENT and LDLM_FLOCK lock
- * data the same way. */
+ * data the same way.
+ */
__swab64s(&d->l_extent.start);
__swab64s(&d->l_extent.end);
__swab64s(&d->l_extent.gid);
__swab32s(&d->l_flock.lfw_pid);
}
-void lustre_swab_ldlm_intent (struct ldlm_intent *i)
+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);
- CLASSERT(offsetof(typeof(*r), lr_pad) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*r), lr_pad) == 0);
lustre_swab_ldlm_res_id(&r->lr_name);
}
-void lustre_swab_ldlm_lock_desc (struct ldlm_lock_desc *l)
+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);
+ 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)
+void lustre_swab_ldlm_request(struct ldlm_request *rq)
{
- __swab32s (&rq->lock_flags);
- lustre_swab_ldlm_lock_desc (&rq->lock_desc);
- __swab32s (&rq->lock_count);
- /* lock_handle[] opaque */
+ __swab32s(&rq->lock_flags);
+ lustre_swab_ldlm_lock_desc(&rq->lock_desc);
+ __swab32s(&rq->lock_count);
+ /* lock_handle[] opaque */
}
-void lustre_swab_ldlm_reply (struct ldlm_reply *r)
+void lustre_swab_ldlm_reply(struct ldlm_reply *r)
{
- __swab32s (&r->lock_flags);
- CLASSERT(offsetof(typeof(*r), lock_padding) != 0);
- lustre_swab_ldlm_lock_desc (&r->lock_desc);
- /* lock_handle opaque */
- __swab64s (&r->lock_policy_res1);
- __swab64s (&r->lock_policy_res2);
+ __swab32s(&r->lock_flags);
+ BUILD_BUG_ON(offsetof(typeof(*r), lock_padding) == 0);
+ lustre_swab_ldlm_lock_desc(&r->lock_desc);
+ /* lock_handle opaque */
+ __swab64s(&r->lock_policy_res1);
+ __swab64s(&r->lock_policy_res2);
}
void lustre_swab_quota_body(struct quota_body *b)
if (valid & OBD_MD_FLFID)
CDEBUG(D_RPCTRACE, "obdo: o_parent_seq = %#llx\n",
oa->o_parent_seq);
- if (valid & OBD_MD_FLSIZE)
+ if (valid & OBD_MD_FLSIZE)
CDEBUG(D_RPCTRACE, "obdo: o_size = %lld\n", oa->o_size);
- if (valid & OBD_MD_FLMTIME)
+ if (valid & OBD_MD_FLMTIME)
CDEBUG(D_RPCTRACE, "obdo: o_mtime = %lld\n", oa->o_mtime);
- if (valid & OBD_MD_FLATIME)
+ if (valid & OBD_MD_FLATIME)
CDEBUG(D_RPCTRACE, "obdo: o_atime = %lld\n", oa->o_atime);
- if (valid & OBD_MD_FLCTIME)
+ if (valid & OBD_MD_FLCTIME)
CDEBUG(D_RPCTRACE, "obdo: o_ctime = %lld\n", oa->o_ctime);
- if (valid & OBD_MD_FLBLOCKS) /* allocation of space */
+ if (valid & OBD_MD_FLBLOCKS) /* allocation of space */
CDEBUG(D_RPCTRACE, "obdo: o_blocks = %lld\n", oa->o_blocks);
- if (valid & OBD_MD_FLGRANT)
+ if (valid & OBD_MD_FLGRANT)
CDEBUG(D_RPCTRACE, "obdo: o_grant = %lld\n", oa->o_grant);
- if (valid & OBD_MD_FLBLKSZ)
- CDEBUG(D_RPCTRACE, "obdo: o_blksize = %d\n", oa->o_blksize);
- if (valid & (OBD_MD_FLTYPE | OBD_MD_FLMODE))
- CDEBUG(D_RPCTRACE, "obdo: o_mode = %o\n",
- oa->o_mode & ((valid & OBD_MD_FLTYPE ? S_IFMT : 0) |
- (valid & OBD_MD_FLMODE ? ~S_IFMT : 0)));
- if (valid & OBD_MD_FLUID)
- CDEBUG(D_RPCTRACE, "obdo: o_uid = %u\n", oa->o_uid);
- if (valid & OBD_MD_FLUID)
- CDEBUG(D_RPCTRACE, "obdo: o_uid_h = %u\n", oa->o_uid_h);
- if (valid & OBD_MD_FLGID)
- CDEBUG(D_RPCTRACE, "obdo: o_gid = %u\n", oa->o_gid);
- if (valid & OBD_MD_FLGID)
- CDEBUG(D_RPCTRACE, "obdo: o_gid_h = %u\n", oa->o_gid_h);
- if (valid & OBD_MD_FLFLAGS)
- CDEBUG(D_RPCTRACE, "obdo: o_flags = %x\n", oa->o_flags);
- if (valid & OBD_MD_FLNLINK)
- CDEBUG(D_RPCTRACE, "obdo: o_nlink = %u\n", oa->o_nlink);
- else if (valid & OBD_MD_FLCKSUM)
- CDEBUG(D_RPCTRACE, "obdo: o_checksum (o_nlink) = %u\n",
- oa->o_nlink);
- if (valid & OBD_MD_FLGENER)
- CDEBUG(D_RPCTRACE, "obdo: o_parent_oid = %x\n",
- oa->o_parent_oid);
- if (valid & OBD_MD_FLEPOCH)
- CDEBUG(D_RPCTRACE, "obdo: o_ioepoch = %lld\n",
- oa->o_ioepoch);
- if (valid & OBD_MD_FLFID) {
- CDEBUG(D_RPCTRACE, "obdo: o_stripe_idx = %u\n",
- oa->o_stripe_idx);
- CDEBUG(D_RPCTRACE, "obdo: o_parent_ver = %x\n",
- oa->o_parent_ver);
- }
- if (valid & OBD_MD_FLHANDLE)
+ if (valid & OBD_MD_FLBLKSZ)
+ CDEBUG(D_RPCTRACE, "obdo: o_blksize = %d\n", oa->o_blksize);
+ if (valid & (OBD_MD_FLTYPE | OBD_MD_FLMODE))
+ CDEBUG(D_RPCTRACE, "obdo: o_mode = %o\n",
+ oa->o_mode & ((valid & OBD_MD_FLTYPE ? S_IFMT : 0) |
+ (valid & OBD_MD_FLMODE ? ~S_IFMT : 0)));
+ if (valid & OBD_MD_FLUID)
+ CDEBUG(D_RPCTRACE, "obdo: o_uid = %u\n", oa->o_uid);
+ if (valid & OBD_MD_FLUID)
+ CDEBUG(D_RPCTRACE, "obdo: o_uid_h = %u\n", oa->o_uid_h);
+ if (valid & OBD_MD_FLGID)
+ CDEBUG(D_RPCTRACE, "obdo: o_gid = %u\n", oa->o_gid);
+ if (valid & OBD_MD_FLGID)
+ CDEBUG(D_RPCTRACE, "obdo: o_gid_h = %u\n", oa->o_gid_h);
+ if (valid & OBD_MD_FLFLAGS)
+ CDEBUG(D_RPCTRACE, "obdo: o_flags = %x\n", oa->o_flags);
+ if (valid & OBD_MD_FLNLINK)
+ CDEBUG(D_RPCTRACE, "obdo: o_nlink = %u\n", oa->o_nlink);
+ else if (valid & OBD_MD_FLCKSUM)
+ CDEBUG(D_RPCTRACE, "obdo: o_checksum (o_nlink) = %u\n",
+ oa->o_nlink);
+ if (valid & OBD_MD_FLPARENT)
+ CDEBUG(D_RPCTRACE, "obdo: o_parent_oid = %x\n",
+ oa->o_parent_oid);
+ if (valid & OBD_MD_FLFID) {
+ CDEBUG(D_RPCTRACE, "obdo: o_stripe_idx = %u\n",
+ oa->o_stripe_idx);
+ CDEBUG(D_RPCTRACE, "obdo: o_parent_ver = %x\n",
+ oa->o_parent_ver);
+ }
+ if (valid & OBD_MD_FLHANDLE)
CDEBUG(D_RPCTRACE, "obdo: o_handle = %lld\n",
- oa->o_handle.cookie);
+ oa->o_handle.cookie);
}
void dump_ost_body(struct ost_body *ob)
{
- dump_obdo(&ob->oa);
+ dump_obdo(&ob->oa);
}
void dump_rcs(__u32 *rc)
{
- CDEBUG(D_RPCTRACE, "rmf_rcs: %d\n", *rc);
+ CDEBUG(D_RPCTRACE, "rmf_rcs: %d\n", *rc);
}
static inline int req_ptlrpc_body_swabbed(struct ptlrpc_request *req)
{
- LASSERT(req->rq_reqmsg);
+ LASSERT(req->rq_reqmsg);
- switch (req->rq_reqmsg->lm_magic) {
- case LUSTRE_MSG_MAGIC_V2:
- return lustre_req_swabbed(req, MSG_PTLRPC_BODY_OFF);
- default:
- CERROR("bad lustre msg magic: %#08X\n",
- req->rq_reqmsg->lm_magic);
- }
- return 0;
+ switch (req->rq_reqmsg->lm_magic) {
+ case LUSTRE_MSG_MAGIC_V2:
+ return lustre_req_swabbed(req, MSG_PTLRPC_BODY_OFF);
+ default:
+ CERROR("bad lustre msg magic: %#08X\n",
+ req->rq_reqmsg->lm_magic);
+ }
+ return 0;
}
static inline int rep_ptlrpc_body_swabbed(struct ptlrpc_request *req)
bool req_ok = req->rq_reqmsg != NULL;
bool rep_ok = false;
lnet_nid_t nid = LNET_NID_ANY;
+ struct va_format vaf;
va_list args;
int rep_flags = -1;
int rep_status = -1;
nid = req->rq_export->exp_connection->c_peer.nid;
va_start(args, fmt);
- libcfs_debug_vmsg2(msgdata, fmt, args,
- " req@%p x%llu/t%lld(%lld) o%d->%s@%s:%d/%d lens %d/%d e %d to %lld dl %lld ref %d fl " REQ_FLAGS_FMT "/%x/%x rc %d/%d\n",
- req, req->rq_xid, req->rq_transno,
- req_ok ? lustre_msg_get_transno(req->rq_reqmsg) : 0,
- req_ok ? lustre_msg_get_opc(req->rq_reqmsg) : -1,
- req->rq_import ?
- req->rq_import->imp_obd->obd_name :
- req->rq_export ?
- req->rq_export->exp_client_uuid.uuid :
- "<?>",
- libcfs_nid2str(nid),
- req->rq_request_portal, req->rq_reply_portal,
- req->rq_reqlen, req->rq_replen,
- req->rq_early_count, (s64)req->rq_timedout,
- (s64)req->rq_deadline,
- atomic_read(&req->rq_refcount),
- DEBUG_REQ_FLAGS(req),
- req_ok ? lustre_msg_get_flags(req->rq_reqmsg) : -1,
- rep_flags, req->rq_status, rep_status);
+ vaf.fmt = fmt;
+ vaf.va = &args;
+ libcfs_debug_msg(msgdata,
+ "%pV req@%p x%llu/t%lld(%lld) o%d->%s@%s:%d/%d lens %d/%d e %d to %lld dl %lld ref %d fl " REQ_FLAGS_FMT "/%x/%x rc %d/%d job:'%s'\n",
+ &vaf,
+ req, req->rq_xid, req->rq_transno,
+ req_ok ? lustre_msg_get_transno(req->rq_reqmsg) : 0,
+ req_ok ? lustre_msg_get_opc(req->rq_reqmsg) : -1,
+ req->rq_import ?
+ req->rq_import->imp_obd->obd_name :
+ req->rq_export ?
+ req->rq_export->exp_client_uuid.uuid :
+ "<?>",
+ libcfs_nid2str(nid),
+ req->rq_request_portal, req->rq_reply_portal,
+ req->rq_reqlen, req->rq_replen,
+ req->rq_early_count, (s64)req->rq_timedout,
+ (s64)req->rq_deadline,
+ atomic_read(&req->rq_refcount),
+ DEBUG_REQ_FLAGS(req),
+ req_ok ? lustre_msg_get_flags(req->rq_reqmsg) : -1,
+ rep_flags, req->rq_status, rep_status,
+ req_ok ? lustre_msg_get_jobid(req->rq_reqmsg) ?: ""
+ : "");
va_end(args);
}
EXPORT_SYMBOL(_debug_req);
-void lustre_swab_lustre_capa(struct lustre_capa *c)
-{
- lustre_swab_lu_fid(&c->lc_fid);
- __swab64s (&c->lc_opc);
- __swab64s (&c->lc_uid);
- __swab64s (&c->lc_gid);
- __swab32s (&c->lc_flags);
- __swab32s (&c->lc_keyid);
- __swab32s (&c->lc_timeout);
- __swab32s (&c->lc_expiry);
-}
-
-void lustre_swab_lustre_capa_key(struct lustre_capa_key *k)
-{
- __swab64s (&k->lk_seq);
- __swab32s (&k->lk_keyid);
- CLASSERT(offsetof(typeof(*k), lk_padding) != 0);
-}
-
void lustre_swab_hsm_user_state(struct hsm_user_state *state)
{
__swab32s(&state->hus_states);
__swab32s(&hr->hr_data_len);
}
-void lustre_swab_object_update(struct object_update *ou)
-{
- struct object_update_param *param;
- size_t i;
-
- __swab16s(&ou->ou_type);
- __swab16s(&ou->ou_params_count);
- __swab32s(&ou->ou_result_size);
- __swab32s(&ou->ou_flags);
- __swab32s(&ou->ou_padding1);
- __swab64s(&ou->ou_batchid);
- lustre_swab_lu_fid(&ou->ou_fid);
- param = &ou->ou_params[0];
- for (i = 0; i < ou->ou_params_count; i++) {
- __swab16s(¶m->oup_len);
- __swab16s(¶m->oup_padding);
- __swab32s(¶m->oup_padding2);
- param = (struct object_update_param *)((char *)param +
- object_update_param_size(param));
- }
-}
-
-void lustre_swab_object_update_request(struct object_update_request *our)
-{
- size_t i;
- __swab32s(&our->ourq_magic);
- __swab16s(&our->ourq_count);
- __swab16s(&our->ourq_padding);
- for (i = 0; i < our->ourq_count; i++) {
- struct object_update *ou;
-
- ou = object_update_request_get(our, i, NULL);
- if (ou == NULL)
- return;
- lustre_swab_object_update(ou);
- }
-}
-
-void lustre_swab_object_update_result(struct object_update_result *our)
-{
- __swab32s(&our->our_rc);
- __swab16s(&our->our_datalen);
- __swab16s(&our->our_padding);
-}
-
-void lustre_swab_object_update_reply(struct object_update_reply *our)
-{
- size_t i;
-
- __swab32s(&our->ourp_magic);
- __swab16s(&our->ourp_count);
- __swab16s(&our->ourp_padding);
- for (i = 0; i < our->ourp_count; i++) {
- struct object_update_result *ourp;
-
- __swab16s(&our->ourp_lens[i]);
- ourp = object_update_result_get(our, i, NULL);
- if (ourp == NULL)
- return;
- lustre_swab_object_update_result(ourp);
- }
-}
-
-void lustre_swab_out_update_header(struct out_update_header *ouh)
-{
- __swab32s(&ouh->ouh_magic);
- __swab32s(&ouh->ouh_count);
- __swab32s(&ouh->ouh_inline_length);
- __swab32s(&ouh->ouh_reply_size);
-}
-EXPORT_SYMBOL(lustre_swab_out_update_header);
-
-void lustre_swab_out_update_buffer(struct out_update_buffer *oub)
-{
- __swab32s(&oub->oub_size);
- __swab32s(&oub->oub_padding);
-}
-EXPORT_SYMBOL(lustre_swab_out_update_buffer);
-
void lustre_swab_swap_layouts(struct mdc_swap_layouts *msl)
{
__swab64s(&msl->msl_flags);
lustre_swab_lu_fid(&lr->lr_fid);
lustre_swab_lu_fid(&lr->lr_fid2);
__swab32s(&lr->lr_comp_id);
- CLASSERT(offsetof(typeof(*lr), lr_padding_0) != 0);
- CLASSERT(offsetof(typeof(*lr), lr_padding_1) != 0);
- CLASSERT(offsetof(typeof(*lr), lr_padding_2) != 0);
- CLASSERT(offsetof(typeof(*lr), lr_padding_3) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*lr), lr_padding_0) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*lr), lr_padding_1) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*lr), lr_padding_2) == 0);
+ BUILD_BUG_ON(offsetof(typeof(*lr), lr_padding_3) == 0);
}
void lustre_swab_lfsck_reply(struct lfsck_reply *lr)
{
__swab32s(&lr->lr_status);
- CLASSERT(offsetof(typeof(*lr), lr_padding_1) != 0);
+ BUILD_BUG_ON(offsetof(typeof(*lr), lr_padding_1) == 0);
__swab64s(&lr->lr_repaired);
}
lustre_swab_lu_fid(&ent->loe_key);
lustre_swab_orphan_rec(&ent->loe_rec.lor_rec);
lustre_swab_ost_layout(&ent->loe_rec.lor_layout);
- CLASSERT(offsetof(typeof(ent->loe_rec), lor_padding) != 0);
+ BUILD_BUG_ON(offsetof(typeof(ent->loe_rec), lor_padding) == 0);
}
EXPORT_SYMBOL(lustre_swab_orphan_ent_v2);
lustre_swab_ost_layout(&ent->loe_rec.lor_layout);
__swab32s(&ent->loe_rec.lor_layout_version);
__swab32s(&ent->loe_rec.lor_range);
- CLASSERT(offsetof(typeof(ent->loe_rec), lor_padding_1) != 0);
- CLASSERT(offsetof(typeof(ent->loe_rec), lor_padding_2) != 0);
+ BUILD_BUG_ON(offsetof(typeof(ent->loe_rec), lor_padding_1) == 0);
+ BUILD_BUG_ON(offsetof(typeof(ent->loe_rec), lor_padding_2) == 0);
}
EXPORT_SYMBOL(lustre_swab_orphan_ent_v3);
git://git.whamcloud.com / fs / lustre-release.git / blobdiff