diff options
Diffstat (limited to 'REORG.TODO/sunrpc/rpc_prot.c')
| -rw-r--r-- | REORG.TODO/sunrpc/rpc_prot.c | 276 |
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) |