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authorZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
committerZack Weinberg <zackw@panix.com>2017-06-08 15:39:03 -0400
commit5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch)
tree4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/sunrpc/rpc_prot.c
parent199fc19d3aaaf57944ef036e15904febe877fc93 (diff)
downloadglibc-zack/build-layout-experiment.tar.gz
glibc-zack/build-layout-experiment.tar.xz
glibc-zack/build-layout-experiment.zip
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/sunrpc/rpc_prot.c')
-rw-r--r--REORG.TODO/sunrpc/rpc_prot.c276
1 files changed, 276 insertions, 0 deletions
diff --git a/REORG.TODO/sunrpc/rpc_prot.c b/REORG.TODO/sunrpc/rpc_prot.c
new file mode 100644
index 0000000000..46582f2a35
--- /dev/null
+++ b/REORG.TODO/sunrpc/rpc_prot.c
@@ -0,0 +1,276 @@
+/*
+ * rpc_prot.c
+ *
+ * Copyright (c) 2010, Oracle America, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ *       copyright notice, this list of conditions and the following
+ *       disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *     * Neither the name of the "Oracle America, Inc." nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ *   FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ *   COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ *   INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ *   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ *   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ *   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ *   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This set of routines implements the rpc message definition,
+ * its serializer and some common rpc utility routines.
+ * The routines are meant for various implementations of rpc -
+ * they are NOT for the rpc client or rpc service implementations!
+ * Because authentication stuff is easy and is part of rpc, the opaque
+ * routines are also in this program.
+ */
+
+#include <sys/param.h>
+#include <rpc/rpc.h>
+#include <shlib-compat.h>
+
+/* * * * * * * * * * * * * * XDR Authentication * * * * * * * * * * * */
+
+/*
+ * XDR an opaque authentication struct
+ * (see auth.h)
+ */
+bool_t
+xdr_opaque_auth (XDR *xdrs, struct opaque_auth *ap)
+{
+
+  if (xdr_enum (xdrs, &(ap->oa_flavor)))
+    return xdr_bytes (xdrs, &ap->oa_base,
+		      &ap->oa_length, MAX_AUTH_BYTES);
+  return FALSE;
+}
+libc_hidden_nolink_sunrpc (xdr_opaque_auth, GLIBC_2_0)
+
+/*
+ * XDR a DES block
+ */
+bool_t
+xdr_des_block (XDR *xdrs, des_block *blkp)
+{
+  return xdr_opaque (xdrs, (caddr_t) blkp, sizeof (des_block));
+}
+libc_hidden_nolink_sunrpc (xdr_des_block, GLIBC_2_0)
+
+/* * * * * * * * * * * * * * XDR RPC MESSAGE * * * * * * * * * * * * * * * */
+
+/*
+ * XDR the MSG_ACCEPTED part of a reply message union
+ */
+bool_t
+xdr_accepted_reply (XDR *xdrs, struct accepted_reply *ar)
+{
+  /* personalized union, rather than calling xdr_union */
+  if (!xdr_opaque_auth (xdrs, &(ar->ar_verf)))
+    return FALSE;
+  if (!xdr_enum (xdrs, (enum_t *) & (ar->ar_stat)))
+    return FALSE;
+  switch (ar->ar_stat)
+    {
+    case SUCCESS:
+      return ((*(ar->ar_results.proc)) (xdrs, ar->ar_results.where));
+    case PROG_MISMATCH:
+      if (!xdr_u_long (xdrs, &(ar->ar_vers.low)))
+	return FALSE;
+      return (xdr_u_long (xdrs, &(ar->ar_vers.high)));
+    default:
+      return TRUE;
+    }
+  return TRUE;		/* TRUE => open ended set of problems */
+}
+libc_hidden_nolink_sunrpc (xdr_accepted_reply, GLIBC_2_0)
+
+/*
+ * XDR the MSG_DENIED part of a reply message union
+ */
+bool_t
+xdr_rejected_reply (XDR *xdrs, struct rejected_reply *rr)
+{
+  /* personalized union, rather than calling xdr_union */
+  if (!xdr_enum (xdrs, (enum_t *) & (rr->rj_stat)))
+    return FALSE;
+  switch (rr->rj_stat)
+    {
+    case RPC_MISMATCH:
+      if (!xdr_u_long (xdrs, &(rr->rj_vers.low)))
+	return FALSE;
+      return xdr_u_long (xdrs, &(rr->rj_vers.high));
+
+    case AUTH_ERROR:
+      return xdr_enum (xdrs, (enum_t *) & (rr->rj_why));
+    }
+  return FALSE;
+}
+libc_hidden_nolink_sunrpc (xdr_rejected_reply, GLIBC_2_0)
+
+static const struct xdr_discrim reply_dscrm[3] =
+{
+  {(int) MSG_ACCEPTED, (xdrproc_t) xdr_accepted_reply},
+  {(int) MSG_DENIED, (xdrproc_t) xdr_rejected_reply},
+  {__dontcare__, NULL_xdrproc_t}};
+
+/*
+ * XDR a reply message
+ */
+bool_t
+xdr_replymsg (XDR *xdrs, struct rpc_msg *rmsg)
+{
+  if (xdr_u_long (xdrs, &(rmsg->rm_xid)) &&
+      xdr_enum (xdrs, (enum_t *) & (rmsg->rm_direction)) &&
+      (rmsg->rm_direction == REPLY))
+    return xdr_union (xdrs, (enum_t *) & (rmsg->rm_reply.rp_stat),
+		      (caddr_t) & (rmsg->rm_reply.ru), reply_dscrm,
+		      NULL_xdrproc_t);
+  return FALSE;
+}
+libc_hidden_nolink_sunrpc (xdr_replymsg, GLIBC_2_0)
+
+
+/*
+ * Serializes the "static part" of a call message header.
+ * The fields include: rm_xid, rm_direction, rpcvers, prog, and vers.
+ * The rm_xid is not really static, but the user can easily munge on the fly.
+ */
+bool_t
+xdr_callhdr (XDR *xdrs, struct rpc_msg *cmsg)
+{
+
+  cmsg->rm_direction = CALL;
+  cmsg->rm_call.cb_rpcvers = RPC_MSG_VERSION;
+  if (
+       (xdrs->x_op == XDR_ENCODE) &&
+       xdr_u_long (xdrs, &(cmsg->rm_xid)) &&
+       xdr_enum (xdrs, (enum_t *) & (cmsg->rm_direction)) &&
+       xdr_u_long (xdrs, &(cmsg->rm_call.cb_rpcvers)) &&
+       xdr_u_long (xdrs, &(cmsg->rm_call.cb_prog)))
+    return xdr_u_long (xdrs, &(cmsg->rm_call.cb_vers));
+  return FALSE;
+}
+libc_hidden_nolink_sunrpc (xdr_callhdr, GLIBC_2_0)
+
+/* ************************** Client utility routine ************* */
+
+static void
+accepted (enum accept_stat acpt_stat,
+	  struct rpc_err *error)
+{
+  switch (acpt_stat)
+    {
+
+    case PROG_UNAVAIL:
+      error->re_status = RPC_PROGUNAVAIL;
+      return;
+
+    case PROG_MISMATCH:
+      error->re_status = RPC_PROGVERSMISMATCH;
+      return;
+
+    case PROC_UNAVAIL:
+      error->re_status = RPC_PROCUNAVAIL;
+      return;
+
+    case GARBAGE_ARGS:
+      error->re_status = RPC_CANTDECODEARGS;
+      return;
+
+    case SYSTEM_ERR:
+      error->re_status = RPC_SYSTEMERROR;
+      return;
+
+    case SUCCESS:
+      error->re_status = RPC_SUCCESS;
+      return;
+    }
+  /* something's wrong, but we don't know what ... */
+  error->re_status = RPC_FAILED;
+  error->re_lb.s1 = (long) MSG_ACCEPTED;
+  error->re_lb.s2 = (long) acpt_stat;
+}
+
+static void
+rejected (enum reject_stat rjct_stat,
+	  struct rpc_err *error)
+{
+  switch (rjct_stat)
+    {
+    case RPC_MISMATCH:
+      error->re_status = RPC_VERSMISMATCH;
+      return;
+    case AUTH_ERROR:
+      error->re_status = RPC_AUTHERROR;
+      return;
+    default:
+      /* something's wrong, but we don't know what ... */
+      error->re_status = RPC_FAILED;
+      error->re_lb.s1 = (long) MSG_DENIED;
+      error->re_lb.s2 = (long) rjct_stat;
+      return;
+    }
+}
+
+/*
+ * given a reply message, fills in the error
+ */
+void
+_seterr_reply (struct rpc_msg *msg,
+	       struct rpc_err *error)
+{
+  /* optimized for normal, SUCCESSful case */
+  switch (msg->rm_reply.rp_stat)
+    {
+    case MSG_ACCEPTED:
+      if (msg->acpted_rply.ar_stat == SUCCESS)
+	{
+	  error->re_status = RPC_SUCCESS;
+	  return;
+	};
+      accepted (msg->acpted_rply.ar_stat, error);
+      break;
+
+    case MSG_DENIED:
+      rejected (msg->rjcted_rply.rj_stat, error);
+      break;
+
+    default:
+      error->re_status = RPC_FAILED;
+      error->re_lb.s1 = (long) (msg->rm_reply.rp_stat);
+      break;
+    }
+  switch (error->re_status)
+    {
+
+    case RPC_VERSMISMATCH:
+      error->re_vers.low = msg->rjcted_rply.rj_vers.low;
+      error->re_vers.high = msg->rjcted_rply.rj_vers.high;
+      break;
+
+    case RPC_AUTHERROR:
+      error->re_why = msg->rjcted_rply.rj_why;
+      break;
+
+    case RPC_PROGVERSMISMATCH:
+      error->re_vers.low = msg->acpted_rply.ar_vers.low;
+      error->re_vers.high = msg->acpted_rply.ar_vers.high;
+      break;
+    default:
+      break;
+    }
+}
+libc_hidden_nolink_sunrpc (_seterr_reply, GLIBC_2_0)