Index: head/sys/rpc/rpc_prot.c =================================================================== --- head/sys/rpc/rpc_prot.c (revision 360034) +++ head/sys/rpc/rpc_prot.c (revision 360035) @@ -1,374 +1,372 @@ /* $NetBSD: rpc_prot.c,v 1.16 2000/06/02 23:11:13 fvdl Exp $ */ /*- * SPDX-License-Identifier: BSD-3-Clause * * Copyright (c) 2009, Sun Microsystems, Inc. * All rights reserved. * * 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 Sun Microsystems, 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. */ #if defined(LIBC_SCCS) && !defined(lint) static char *sccsid2 = "@(#)rpc_prot.c 1.36 87/08/11 Copyr 1984 Sun Micro"; static char *sccsid = "@(#)rpc_prot.c 2.3 88/08/07 4.0 RPCSRC"; #endif #include __FBSDID("$FreeBSD$"); /* * rpc_prot.c * * Copyright (C) 1984, Sun Microsystems, Inc. * * 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 #include #include #include #include #include #include #include #include -MALLOC_DEFINE(M_RPC, "rpc", "Remote Procedure Call"); - #define assert(exp) KASSERT(exp, ("bad arguments")) static enum clnt_stat accepted(enum accept_stat, struct rpc_err *); static enum clnt_stat rejected(enum reject_stat, struct rpc_err *); /* * * * * * * * * * * * * * XDR Authentication * * * * * * * * * * * */ struct opaque_auth _null_auth; /* * XDR an opaque authentication struct * (see auth.h) */ bool_t xdr_opaque_auth(XDR *xdrs, struct opaque_auth *ap) { assert(xdrs != NULL); assert(ap != NULL); if (xdr_enum(xdrs, &(ap->oa_flavor))) return (xdr_bytes(xdrs, &ap->oa_base, &ap->oa_length, MAX_AUTH_BYTES)); return (FALSE); } /* * * * * * * * * * * * * * XDR RPC MESSAGE * * * * * * * * * * * * * * * */ /* * XDR the MSG_ACCEPTED part of a reply message union */ bool_t xdr_accepted_reply(XDR *xdrs, struct accepted_reply *ar) { enum accept_stat *par_stat; assert(xdrs != NULL); assert(ar != NULL); par_stat = &ar->ar_stat; /* personalized union, rather than calling xdr_union */ if (! xdr_opaque_auth(xdrs, &(ar->ar_verf))) return (FALSE); if (! xdr_enum(xdrs, (enum_t *) par_stat)) return (FALSE); switch (ar->ar_stat) { case SUCCESS: if (ar->ar_results.proc != (xdrproc_t) xdr_void) return ((*(ar->ar_results.proc))(xdrs, ar->ar_results.where)); else return (TRUE); case PROG_MISMATCH: if (! xdr_uint32_t(xdrs, &(ar->ar_vers.low))) return (FALSE); return (xdr_uint32_t(xdrs, &(ar->ar_vers.high))); case GARBAGE_ARGS: case SYSTEM_ERR: case PROC_UNAVAIL: case PROG_UNAVAIL: break; } return (TRUE); /* TRUE => open ended set of problems */ } /* * XDR the MSG_DENIED part of a reply message union */ bool_t xdr_rejected_reply(XDR *xdrs, struct rejected_reply *rr) { enum reject_stat *prj_stat; enum auth_stat *prj_why; assert(xdrs != NULL); assert(rr != NULL); prj_stat = &rr->rj_stat; /* personalized union, rather than calling xdr_union */ if (! xdr_enum(xdrs, (enum_t *) prj_stat)) return (FALSE); switch (rr->rj_stat) { case RPC_MISMATCH: if (! xdr_uint32_t(xdrs, &(rr->rj_vers.low))) return (FALSE); return (xdr_uint32_t(xdrs, &(rr->rj_vers.high))); case AUTH_ERROR: prj_why = &rr->rj_why; return (xdr_enum(xdrs, (enum_t *) prj_why)); } /* NOTREACHED */ assert(0); return (FALSE); } 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) { int32_t *buf; enum msg_type *prm_direction; enum reply_stat *prp_stat; assert(xdrs != NULL); assert(rmsg != NULL); if (xdrs->x_op == XDR_DECODE) { buf = XDR_INLINE(xdrs, 3 * BYTES_PER_XDR_UNIT); if (buf != NULL) { rmsg->rm_xid = IXDR_GET_UINT32(buf); rmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type); if (rmsg->rm_direction != REPLY) { return (FALSE); } rmsg->rm_reply.rp_stat = IXDR_GET_ENUM(buf, enum reply_stat); if (rmsg->rm_reply.rp_stat == MSG_ACCEPTED) return (xdr_accepted_reply(xdrs, &rmsg->acpted_rply)); else if (rmsg->rm_reply.rp_stat == MSG_DENIED) return (xdr_rejected_reply(xdrs, &rmsg->rjcted_rply)); else return (FALSE); } } prm_direction = &rmsg->rm_direction; prp_stat = &rmsg->rm_reply.rp_stat; if ( xdr_uint32_t(xdrs, &(rmsg->rm_xid)) && xdr_enum(xdrs, (enum_t *) prm_direction) && (rmsg->rm_direction == REPLY) ) return (xdr_union(xdrs, (enum_t *) prp_stat, (caddr_t)(void *)&(rmsg->rm_reply.ru), reply_dscrm, NULL_xdrproc_t)); return (FALSE); } /* * 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) { enum msg_type *prm_direction; assert(xdrs != NULL); assert(cmsg != NULL); prm_direction = &cmsg->rm_direction; cmsg->rm_direction = CALL; cmsg->rm_call.cb_rpcvers = RPC_MSG_VERSION; if ( (xdrs->x_op == XDR_ENCODE) && xdr_uint32_t(xdrs, &(cmsg->rm_xid)) && xdr_enum(xdrs, (enum_t *) prm_direction) && xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) && xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_prog)) ) return (xdr_uint32_t(xdrs, &(cmsg->rm_call.cb_vers))); return (FALSE); } /* ************************** Client utility routine ************* */ static enum clnt_stat accepted(enum accept_stat acpt_stat, struct rpc_err *error) { assert(error != NULL); switch (acpt_stat) { case PROG_UNAVAIL: error->re_status = RPC_PROGUNAVAIL; return (RPC_PROGUNAVAIL); case PROG_MISMATCH: error->re_status = RPC_PROGVERSMISMATCH; return (RPC_PROGVERSMISMATCH); case PROC_UNAVAIL: return (RPC_PROCUNAVAIL); case GARBAGE_ARGS: return (RPC_CANTDECODEARGS); case SYSTEM_ERR: return (RPC_SYSTEMERROR); case SUCCESS: return (RPC_SUCCESS); } /* NOTREACHED */ /* something's wrong, but we don't know what ... */ error->re_lb.s1 = (int32_t)MSG_ACCEPTED; error->re_lb.s2 = (int32_t)acpt_stat; return (RPC_FAILED); } static enum clnt_stat rejected(enum reject_stat rjct_stat, struct rpc_err *error) { assert(error != NULL); switch (rjct_stat) { case RPC_MISMATCH: return (RPC_VERSMISMATCH); case AUTH_ERROR: return (RPC_AUTHERROR); } /* something's wrong, but we don't know what ... */ /* NOTREACHED */ error->re_lb.s1 = (int32_t)MSG_DENIED; error->re_lb.s2 = (int32_t)rjct_stat; return (RPC_FAILED); } /* * given a reply message, fills in the error */ enum clnt_stat _seterr_reply(struct rpc_msg *msg, struct rpc_err *error) { enum clnt_stat stat; assert(msg != NULL); assert(error != NULL); /* optimized for normal, SUCCESSful case */ switch (msg->rm_reply.rp_stat) { case MSG_ACCEPTED: if (msg->acpted_rply.ar_stat == SUCCESS) { stat = RPC_SUCCESS; return (stat); } stat = accepted(msg->acpted_rply.ar_stat, error); break; case MSG_DENIED: stat = rejected(msg->rjcted_rply.rj_stat, error); break; default: stat = RPC_FAILED; error->re_lb.s1 = (int32_t)(msg->rm_reply.rp_stat); break; } error->re_status = stat; switch (stat) { 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; case RPC_FAILED: case RPC_SUCCESS: case RPC_PROGNOTREGISTERED: case RPC_PMAPFAILURE: case RPC_UNKNOWNPROTO: case RPC_UNKNOWNHOST: case RPC_SYSTEMERROR: case RPC_CANTDECODEARGS: case RPC_PROCUNAVAIL: case RPC_PROGUNAVAIL: case RPC_TIMEDOUT: case RPC_CANTRECV: case RPC_CANTSEND: case RPC_CANTDECODERES: case RPC_CANTENCODEARGS: default: break; } return (stat); } Index: head/sys/xdr/xdr.c =================================================================== --- head/sys/xdr/xdr.c (revision 360034) +++ head/sys/xdr/xdr.c (revision 360035) @@ -1,836 +1,838 @@ /* $NetBSD: xdr.c,v 1.22 2000/07/06 03:10:35 christos Exp $ */ /* * Sun RPC is a product of Sun Microsystems, Inc. and is provided for * unrestricted use provided that this legend is included on all tape * media and as a part of the software program in whole or part. Users * may copy or modify Sun RPC without charge, but are not authorized * to license or distribute it to anyone else except as part of a product or * program developed by the user. * * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE. * * Sun RPC is provided with no support and without any obligation on the * part of Sun Microsystems, Inc. to assist in its use, correction, * modification or enhancement. * * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC * OR ANY PART THEREOF. * * In no event will Sun Microsystems, Inc. be liable for any lost revenue * or profits or other special, indirect and consequential damages, even if * Sun has been advised of the possibility of such damages. * * Sun Microsystems, Inc. * 2550 Garcia Avenue * Mountain View, California 94043 */ #if defined(LIBC_SCCS) && !defined(lint) static char *sccsid2 = "@(#)xdr.c 1.35 87/08/12"; static char *sccsid = "@(#)xdr.c 2.1 88/07/29 4.0 RPCSRC"; #endif #include __FBSDID("$FreeBSD$"); /* * xdr.c, Generic XDR routines implementation. * * Copyright (C) 1986, Sun Microsystems, Inc. * * These are the "generic" xdr routines used to serialize and de-serialize * most common data items. See xdr.h for more info on the interface to * xdr. */ #include #include #include #include #include #include #include #include typedef quad_t longlong_t; /* ANSI long long type */ typedef u_quad_t u_longlong_t; /* ANSI unsigned long long type */ /* * constants specific to the xdr "protocol" */ #define XDR_FALSE ((long) 0) #define XDR_TRUE ((long) 1) +MALLOC_DEFINE(M_RPC, "rpc", "Remote Procedure Call"); + /* * for unit alignment */ static const char xdr_zero[BYTES_PER_XDR_UNIT] = { 0, 0, 0, 0 }; /* * Free a data structure using XDR * Not a filter, but a convenient utility nonetheless */ void xdr_free(xdrproc_t proc, void *objp) { XDR x; x.x_op = XDR_FREE; (*proc)(&x, objp); } /* * XDR nothing */ bool_t xdr_void(void) { return (TRUE); } /* * XDR integers */ bool_t xdr_int(XDR *xdrs, int *ip) { long l; switch (xdrs->x_op) { case XDR_ENCODE: l = (long) *ip; return (XDR_PUTLONG(xdrs, &l)); case XDR_DECODE: if (!XDR_GETLONG(xdrs, &l)) { return (FALSE); } *ip = (int) l; return (TRUE); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR unsigned integers */ bool_t xdr_u_int(XDR *xdrs, u_int *up) { u_long l; switch (xdrs->x_op) { case XDR_ENCODE: l = (u_long) *up; return (XDR_PUTLONG(xdrs, (long *)&l)); case XDR_DECODE: if (!XDR_GETLONG(xdrs, (long *)&l)) { return (FALSE); } *up = (u_int) l; return (TRUE); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR long integers * same as xdr_u_long - open coded to save a proc call! */ bool_t xdr_long(XDR *xdrs, long *lp) { switch (xdrs->x_op) { case XDR_ENCODE: return (XDR_PUTLONG(xdrs, lp)); case XDR_DECODE: return (XDR_GETLONG(xdrs, lp)); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR unsigned long integers * same as xdr_long - open coded to save a proc call! */ bool_t xdr_u_long(XDR *xdrs, u_long *ulp) { switch (xdrs->x_op) { case XDR_ENCODE: return (XDR_PUTLONG(xdrs, (long *)ulp)); case XDR_DECODE: return (XDR_GETLONG(xdrs, (long *)ulp)); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR 32-bit integers * same as xdr_uint32_t - open coded to save a proc call! */ bool_t xdr_int32_t(XDR *xdrs, int32_t *int32_p) { long l; switch (xdrs->x_op) { case XDR_ENCODE: l = (long) *int32_p; return (XDR_PUTLONG(xdrs, &l)); case XDR_DECODE: if (!XDR_GETLONG(xdrs, &l)) { return (FALSE); } *int32_p = (int32_t) l; return (TRUE); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR unsigned 32-bit integers * same as xdr_int32_t - open coded to save a proc call! */ bool_t xdr_uint32_t(XDR *xdrs, uint32_t *uint32_p) { u_long l; switch (xdrs->x_op) { case XDR_ENCODE: l = (u_long) *uint32_p; return (XDR_PUTLONG(xdrs, (long *)&l)); case XDR_DECODE: if (!XDR_GETLONG(xdrs, (long *)&l)) { return (FALSE); } *uint32_p = (uint32_t) l; return (TRUE); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR short integers */ bool_t xdr_short(XDR *xdrs, short *sp) { long l; switch (xdrs->x_op) { case XDR_ENCODE: l = (long) *sp; return (XDR_PUTLONG(xdrs, &l)); case XDR_DECODE: if (!XDR_GETLONG(xdrs, &l)) { return (FALSE); } *sp = (short) l; return (TRUE); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR unsigned short integers */ bool_t xdr_u_short(XDR *xdrs, u_short *usp) { u_long l; switch (xdrs->x_op) { case XDR_ENCODE: l = (u_long) *usp; return (XDR_PUTLONG(xdrs, (long *)&l)); case XDR_DECODE: if (!XDR_GETLONG(xdrs, (long *)&l)) { return (FALSE); } *usp = (u_short) l; return (TRUE); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR 16-bit integers */ bool_t xdr_int16_t(XDR *xdrs, int16_t *int16_p) { long l; switch (xdrs->x_op) { case XDR_ENCODE: l = (long) *int16_p; return (XDR_PUTLONG(xdrs, &l)); case XDR_DECODE: if (!XDR_GETLONG(xdrs, &l)) { return (FALSE); } *int16_p = (int16_t) l; return (TRUE); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR unsigned 16-bit integers */ bool_t xdr_uint16_t(XDR *xdrs, uint16_t *uint16_p) { u_long l; switch (xdrs->x_op) { case XDR_ENCODE: l = (u_long) *uint16_p; return (XDR_PUTLONG(xdrs, (long *)&l)); case XDR_DECODE: if (!XDR_GETLONG(xdrs, (long *)&l)) { return (FALSE); } *uint16_p = (uint16_t) l; return (TRUE); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR a char */ bool_t xdr_char(XDR *xdrs, char *cp) { int i; i = (*cp); if (!xdr_int(xdrs, &i)) { return (FALSE); } *cp = i; return (TRUE); } /* * XDR an unsigned char */ bool_t xdr_u_char(XDR *xdrs, u_char *cp) { u_int u; u = (*cp); if (!xdr_u_int(xdrs, &u)) { return (FALSE); } *cp = u; return (TRUE); } /* * XDR booleans */ bool_t xdr_bool(XDR *xdrs, bool_t *bp) { long lb; switch (xdrs->x_op) { case XDR_ENCODE: lb = *bp ? XDR_TRUE : XDR_FALSE; return (XDR_PUTLONG(xdrs, &lb)); case XDR_DECODE: if (!XDR_GETLONG(xdrs, &lb)) { return (FALSE); } *bp = (lb == XDR_FALSE) ? FALSE : TRUE; return (TRUE); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR enumerations */ bool_t xdr_enum(XDR *xdrs, enum_t *ep) { enum sizecheck { SIZEVAL }; /* used to find the size of an enum */ /* * enums are treated as ints */ /* LINTED */ if (sizeof (enum sizecheck) == sizeof (long)) { return (xdr_long(xdrs, (long *)(void *)ep)); } else /* LINTED */ if (sizeof (enum sizecheck) == sizeof (int)) { return (xdr_int(xdrs, (int *)(void *)ep)); } else /* LINTED */ if (sizeof (enum sizecheck) == sizeof (short)) { return (xdr_short(xdrs, (short *)(void *)ep)); } else { return (FALSE); } } /* * XDR opaque data * Allows the specification of a fixed size sequence of opaque bytes. * cp points to the opaque object and cnt gives the byte length. */ bool_t xdr_opaque(XDR *xdrs, caddr_t cp, u_int cnt) { u_int rndup; static int crud[BYTES_PER_XDR_UNIT]; /* * if no data we are done */ if (cnt == 0) return (TRUE); /* * round byte count to full xdr units */ rndup = cnt % BYTES_PER_XDR_UNIT; if (rndup > 0) rndup = BYTES_PER_XDR_UNIT - rndup; if (xdrs->x_op == XDR_DECODE) { if (!XDR_GETBYTES(xdrs, cp, cnt)) { return (FALSE); } if (rndup == 0) return (TRUE); return (XDR_GETBYTES(xdrs, (caddr_t)(void *)crud, rndup)); } if (xdrs->x_op == XDR_ENCODE) { if (!XDR_PUTBYTES(xdrs, cp, cnt)) { return (FALSE); } if (rndup == 0) return (TRUE); return (XDR_PUTBYTES(xdrs, xdr_zero, rndup)); } if (xdrs->x_op == XDR_FREE) { return (TRUE); } return (FALSE); } /* * XDR counted bytes * *cpp is a pointer to the bytes, *sizep is the count. * If *cpp is NULL maxsize bytes are allocated */ bool_t xdr_bytes(XDR *xdrs, char **cpp, u_int *sizep, u_int maxsize) { char *sp = *cpp; /* sp is the actual string pointer */ u_int nodesize; bool_t ret, allocated = FALSE; /* * first deal with the length since xdr bytes are counted */ if (! xdr_u_int(xdrs, sizep)) { return (FALSE); } nodesize = *sizep; if ((nodesize > maxsize) && (xdrs->x_op != XDR_FREE)) { return (FALSE); } /* * now deal with the actual bytes */ switch (xdrs->x_op) { case XDR_DECODE: if (nodesize == 0) { return (TRUE); } if (sp == NULL) { *cpp = sp = mem_alloc(nodesize); allocated = TRUE; } if (sp == NULL) { printf("xdr_bytes: out of memory"); return (FALSE); } /* FALLTHROUGH */ case XDR_ENCODE: ret = xdr_opaque(xdrs, sp, nodesize); if ((xdrs->x_op == XDR_DECODE) && (ret == FALSE)) { if (allocated == TRUE) { mem_free(sp, nodesize); *cpp = NULL; } } return (ret); case XDR_FREE: if (sp != NULL) { mem_free(sp, nodesize); *cpp = NULL; } return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * Implemented here due to commonality of the object. */ bool_t xdr_netobj(XDR *xdrs, struct netobj *np) { return (xdr_bytes(xdrs, &np->n_bytes, &np->n_len, MAX_NETOBJ_SZ)); } /* * XDR a descriminated union * Support routine for discriminated unions. * You create an array of xdrdiscrim structures, terminated with * an entry with a null procedure pointer. The routine gets * the discriminant value and then searches the array of xdrdiscrims * looking for that value. It calls the procedure given in the xdrdiscrim * to handle the discriminant. If there is no specific routine a default * routine may be called. * If there is no specific or default routine an error is returned. */ bool_t xdr_union(XDR *xdrs, enum_t *dscmp, /* enum to decide which arm to work on */ char *unp, /* the union itself */ const struct xdr_discrim *choices, /* [value, xdr proc] for each arm */ xdrproc_t dfault) /* default xdr routine */ { enum_t dscm; /* * we deal with the discriminator; it's an enum */ if (! xdr_enum(xdrs, dscmp)) { return (FALSE); } dscm = *dscmp; /* * search choices for a value that matches the discriminator. * if we find one, execute the xdr routine for that value. */ for (; choices->proc != NULL_xdrproc_t; choices++) { if (choices->value == dscm) return ((*(choices->proc))(xdrs, unp)); } /* * no match - execute the default xdr routine if there is one */ return ((dfault == NULL_xdrproc_t) ? FALSE : (*dfault)(xdrs, unp)); } /* * Non-portable xdr primitives. * Care should be taken when moving these routines to new architectures. */ /* * XDR null terminated ASCII strings * xdr_string deals with "C strings" - arrays of bytes that are * terminated by a NULL character. The parameter cpp references a * pointer to storage; If the pointer is null, then the necessary * storage is allocated. The last parameter is the max allowed length * of the string as specified by a protocol. */ bool_t xdr_string(XDR *xdrs, char **cpp, u_int maxsize) { char *sp = *cpp; /* sp is the actual string pointer */ u_int size; u_int nodesize; bool_t ret, allocated = FALSE; /* * first deal with the length since xdr strings are counted-strings */ switch (xdrs->x_op) { case XDR_FREE: if (sp == NULL) { return(TRUE); /* already free */ } /* FALLTHROUGH */ case XDR_ENCODE: size = strlen(sp); break; case XDR_DECODE: break; } if (! xdr_u_int(xdrs, &size)) { return (FALSE); } if (size > maxsize) { return (FALSE); } nodesize = size + 1; /* * now deal with the actual bytes */ switch (xdrs->x_op) { case XDR_DECODE: if (nodesize == 0) { return (TRUE); } if (sp == NULL) { *cpp = sp = mem_alloc(nodesize); allocated = TRUE; } if (sp == NULL) { printf("xdr_string: out of memory"); return (FALSE); } sp[size] = 0; /* FALLTHROUGH */ case XDR_ENCODE: ret = xdr_opaque(xdrs, sp, size); if ((xdrs->x_op == XDR_DECODE) && (ret == FALSE)) { if (allocated == TRUE) { mem_free(sp, nodesize); *cpp = NULL; } } return (ret); case XDR_FREE: mem_free(sp, nodesize); *cpp = NULL; return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * Wrapper for xdr_string that can be called directly from * routines like clnt_call */ bool_t xdr_wrapstring(XDR *xdrs, char **cpp) { return xdr_string(xdrs, cpp, RPC_MAXDATASIZE); } /* * NOTE: xdr_hyper(), xdr_u_hyper(), xdr_longlong_t(), and xdr_u_longlong_t() * are in the "non-portable" section because they require that a `long long' * be a 64-bit type. * * --thorpej@netbsd.org, November 30, 1999 */ /* * XDR 64-bit integers */ bool_t xdr_int64_t(XDR *xdrs, int64_t *llp) { u_long ul[2]; switch (xdrs->x_op) { case XDR_ENCODE: ul[0] = (u_long)((uint64_t)*llp >> 32) & 0xffffffff; ul[1] = (u_long)((uint64_t)*llp) & 0xffffffff; if (XDR_PUTLONG(xdrs, (long *)&ul[0]) == FALSE) return (FALSE); return (XDR_PUTLONG(xdrs, (long *)&ul[1])); case XDR_DECODE: if (XDR_GETLONG(xdrs, (long *)&ul[0]) == FALSE) return (FALSE); if (XDR_GETLONG(xdrs, (long *)&ul[1]) == FALSE) return (FALSE); *llp = (int64_t) (((uint64_t)ul[0] << 32) | ((uint64_t)ul[1])); return (TRUE); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR unsigned 64-bit integers */ bool_t xdr_uint64_t(XDR *xdrs, uint64_t *ullp) { u_long ul[2]; switch (xdrs->x_op) { case XDR_ENCODE: ul[0] = (u_long)(*ullp >> 32) & 0xffffffff; ul[1] = (u_long)(*ullp) & 0xffffffff; if (XDR_PUTLONG(xdrs, (long *)&ul[0]) == FALSE) return (FALSE); return (XDR_PUTLONG(xdrs, (long *)&ul[1])); case XDR_DECODE: if (XDR_GETLONG(xdrs, (long *)&ul[0]) == FALSE) return (FALSE); if (XDR_GETLONG(xdrs, (long *)&ul[1]) == FALSE) return (FALSE); *ullp = (uint64_t) (((uint64_t)ul[0] << 32) | ((uint64_t)ul[1])); return (TRUE); case XDR_FREE: return (TRUE); } /* NOTREACHED */ return (FALSE); } /* * XDR hypers */ bool_t xdr_hyper(XDR *xdrs, longlong_t *llp) { /* * Don't bother open-coding this; it's a fair amount of code. Just * call xdr_int64_t(). */ return (xdr_int64_t(xdrs, (int64_t *)llp)); } /* * XDR unsigned hypers */ bool_t xdr_u_hyper(XDR *xdrs, u_longlong_t *ullp) { /* * Don't bother open-coding this; it's a fair amount of code. Just * call xdr_uint64_t(). */ return (xdr_uint64_t(xdrs, (uint64_t *)ullp)); } /* * XDR longlong_t's */ bool_t xdr_longlong_t(XDR *xdrs, longlong_t *llp) { /* * Don't bother open-coding this; it's a fair amount of code. Just * call xdr_int64_t(). */ return (xdr_int64_t(xdrs, (int64_t *)llp)); } /* * XDR u_longlong_t's */ bool_t xdr_u_longlong_t(XDR *xdrs, u_longlong_t *ullp) { /* * Don't bother open-coding this; it's a fair amount of code. Just * call xdr_uint64_t(). */ return (xdr_uint64_t(xdrs, (uint64_t *)ullp)); }