- struct gss_cli_ctx *gctx;
- struct lustre_msg *msg;
- struct ptlrpc_bulk_sec_desc *bsd;
- rawobj_t token;
- __u32 maj;
- int offset;
- int rc;
- ENTRY;
-
- LASSERT(req->rq_pack_bulk);
- LASSERT(req->rq_bulk_read || req->rq_bulk_write);
-
- gctx = container_of(ctx, struct gss_cli_ctx, gc_base);
- LASSERT(gctx->gc_mechctx);
-
- switch (SPTLRPC_FLVR_SVC(req->rq_flvr.sf_rpc)) {
- case SPTLRPC_SVC_NULL:
- LASSERT(req->rq_reqbuf->lm_bufcount >= 3);
- msg = req->rq_reqbuf;
- offset = msg->lm_bufcount - 1;
- break;
- case SPTLRPC_SVC_AUTH:
- case SPTLRPC_SVC_INTG:
- LASSERT(req->rq_reqbuf->lm_bufcount >= 4);
- msg = req->rq_reqbuf;
- offset = msg->lm_bufcount - 2;
- break;
- case SPTLRPC_SVC_PRIV:
- LASSERT(req->rq_clrbuf->lm_bufcount >= 2);
- msg = req->rq_clrbuf;
- offset = msg->lm_bufcount - 1;
- break;
- default:
- LBUG();
- }
-
- bsd = lustre_msg_buf(msg, offset, sizeof(*bsd));
- bsd->bsd_version = 0;
- bsd->bsd_flags = 0;
- bsd->bsd_type = SPTLRPC_BULK_DEFAULT;
- bsd->bsd_svc = SPTLRPC_FLVR_BULK_SVC(req->rq_flvr.sf_rpc);
-
- if (bsd->bsd_svc == SPTLRPC_BULK_SVC_NULL)
- RETURN(0);
-
- LASSERT(bsd->bsd_svc == SPTLRPC_BULK_SVC_INTG ||
- bsd->bsd_svc == SPTLRPC_BULK_SVC_PRIV);
-
- if (req->rq_bulk_read) {
- /*
- * bulk read: prepare receiving pages only for privacy mode.
- */
- if (bsd->bsd_svc == SPTLRPC_BULK_SVC_PRIV)
- return gss_cli_prep_bulk(req, desc);
- } else {
- /*
- * bulk write: sign or encrypt bulk pages.
- */
- bsd->bsd_nob = desc->bd_nob;
-
- if (bsd->bsd_svc == SPTLRPC_BULK_SVC_INTG) {
- /* integrity mode */
- token.data = bsd->bsd_data;
- token.len = lustre_msg_buflen(msg, offset) -
- sizeof(*bsd);
-
- maj = lgss_get_mic(gctx->gc_mechctx, 0, NULL,
- desc->bd_iov_count, desc->bd_iov,
- &token);
- if (maj != GSS_S_COMPLETE) {
- CWARN("failed to sign bulk data: %x\n", maj);
- RETURN(-EACCES);
- }
- } else {
- /* privacy mode */
- if (desc->bd_iov_count == 0)
- RETURN(0);
-
- rc = sptlrpc_enc_pool_get_pages(desc);
- if (rc) {
- CERROR("bulk write: failed to allocate "
- "encryption pages: %d\n", rc);
- RETURN(rc);
- }
-
- token.data = bsd->bsd_data;
- token.len = lustre_msg_buflen(msg, offset) -
- sizeof(*bsd);
-
- maj = lgss_wrap_bulk(gctx->gc_mechctx, desc, &token, 0);
- if (maj != GSS_S_COMPLETE) {
- CWARN("fail to encrypt bulk data: %x\n", maj);
- RETURN(-EACCES);
- }
- }
- }
-
- RETURN(0);
+ struct gss_cli_ctx *gctx;
+ struct lustre_msg *msg;
+ struct ptlrpc_bulk_sec_desc *bsd;
+ rawobj_t token;
+ __u32 maj;
+ int offset;
+ int rc;
+ ENTRY;
+
+ LASSERT(req->rq_pack_bulk);
+ LASSERT(req->rq_bulk_read || req->rq_bulk_write);
+ LASSERT(ptlrpc_is_bulk_desc_kiov(desc->bd_type));
+
+ gctx = container_of(ctx, struct gss_cli_ctx, gc_base);
+ LASSERT(gctx->gc_mechctx);
+
+ switch (SPTLRPC_FLVR_SVC(req->rq_flvr.sf_rpc)) {
+ case SPTLRPC_SVC_NULL:
+ LASSERT(req->rq_reqbuf->lm_bufcount >= 3);
+ msg = req->rq_reqbuf;
+ offset = msg->lm_bufcount - 1;
+ break;
+ case SPTLRPC_SVC_AUTH:
+ case SPTLRPC_SVC_INTG:
+ LASSERT(req->rq_reqbuf->lm_bufcount >= 4);
+ msg = req->rq_reqbuf;
+ offset = msg->lm_bufcount - 2;
+ break;
+ case SPTLRPC_SVC_PRIV:
+ LASSERT(req->rq_clrbuf->lm_bufcount >= 2);
+ msg = req->rq_clrbuf;
+ offset = msg->lm_bufcount - 1;
+ break;
+ default:
+ LBUG();
+ }
+
+ bsd = lustre_msg_buf(msg, offset, sizeof(*bsd));
+ bsd->bsd_version = 0;
+ bsd->bsd_flags = 0;
+ bsd->bsd_type = SPTLRPC_BULK_DEFAULT;
+ bsd->bsd_svc = SPTLRPC_FLVR_BULK_SVC(req->rq_flvr.sf_rpc);
+
+ if (bsd->bsd_svc == SPTLRPC_BULK_SVC_NULL)
+ RETURN(0);
+
+ LASSERT(bsd->bsd_svc == SPTLRPC_BULK_SVC_INTG ||
+ bsd->bsd_svc == SPTLRPC_BULK_SVC_PRIV);
+
+ if (req->rq_bulk_read) {
+ /*
+ * bulk read: prepare receiving pages only for privacy mode.
+ */
+ if (bsd->bsd_svc == SPTLRPC_BULK_SVC_PRIV)
+ return gss_cli_prep_bulk(req, desc);
+ } else {
+ /*
+ * bulk write: sign or encrypt bulk pages.
+ */
+ bsd->bsd_nob = desc->bd_nob;
+
+ if (bsd->bsd_svc == SPTLRPC_BULK_SVC_INTG) {
+ /* integrity mode */
+ token.data = bsd->bsd_data;
+ token.len = lustre_msg_buflen(msg, offset) -
+ sizeof(*bsd);
+
+ maj = lgss_get_mic(gctx->gc_mechctx, 0, NULL,
+ desc->bd_iov_count,
+ GET_KIOV(desc),
+ &token);
+ if (maj != GSS_S_COMPLETE) {
+ CWARN("failed to sign bulk data: %x\n", maj);
+ RETURN(-EACCES);
+ }
+ } else {
+ /* privacy mode */
+ if (desc->bd_iov_count == 0)
+ RETURN(0);
+
+ rc = sptlrpc_enc_pool_get_pages(desc);
+ if (rc) {
+ CERROR("bulk write: failed to allocate "
+ "encryption pages: %d\n", rc);
+ RETURN(rc);
+ }
+
+ token.data = bsd->bsd_data;
+ token.len = lustre_msg_buflen(msg, offset) -
+ sizeof(*bsd);
+
+ maj = lgss_wrap_bulk(gctx->gc_mechctx, desc, &token, 0);
+ if (maj != GSS_S_COMPLETE) {
+ CWARN("fail to encrypt bulk data: %x\n", maj);
+ RETURN(-EACCES);
+ }
+ }
+ }
+
+ RETURN(0);