diff options
Diffstat (limited to 'src/rpc_callmsg.c')
| -rw-r--r-- | src/rpc_callmsg.c | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/src/rpc_callmsg.c b/src/rpc_callmsg.c new file mode 100644 index 0000000..d5f7d0c --- /dev/null +++ b/src/rpc_callmsg.c @@ -0,0 +1,196 @@ +/* + * 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. + */ + +/* + * rpc_callmsg.c + * + * Copyright (C) 1984, Sun Microsystems, Inc. + * + */ + +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include <rpc/rpc.h> +#include <rpc/xdr.h> + +#include <sys/select.h> + +/* + * XDR a call message + */ +bool_t +xdr_callmsg(xdrs, cmsg) + XDR *xdrs; + struct rpc_msg *cmsg; +{ + int32_t *buf; + struct opaque_auth *oa; + + assert(xdrs != NULL); + assert(cmsg != NULL); + + if (xdrs->x_op == XDR_ENCODE) { + if (cmsg->rm_call.cb_cred.oa_length > MAX_AUTH_BYTES) { + return (FALSE); + } + if (cmsg->rm_call.cb_verf.oa_length > MAX_AUTH_BYTES) { + return (FALSE); + } + buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT + + RNDUP(cmsg->rm_call.cb_cred.oa_length) + + 2 * BYTES_PER_XDR_UNIT + + RNDUP(cmsg->rm_call.cb_verf.oa_length)); + if (buf != NULL) { + IXDR_PUT_INT32(buf, cmsg->rm_xid); + IXDR_PUT_ENUM(buf, cmsg->rm_direction); + if (cmsg->rm_direction != CALL) { + return (FALSE); + } + IXDR_PUT_INT32(buf, cmsg->rm_call.cb_rpcvers); + if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { + return (FALSE); + } + IXDR_PUT_INT32(buf, cmsg->rm_call.cb_prog); + IXDR_PUT_INT32(buf, cmsg->rm_call.cb_vers); + IXDR_PUT_INT32(buf, cmsg->rm_call.cb_proc); + oa = &cmsg->rm_call.cb_cred; + IXDR_PUT_ENUM(buf, oa->oa_flavor); + IXDR_PUT_INT32(buf, oa->oa_length); + if (oa->oa_length) { + memmove(buf, oa->oa_base, oa->oa_length); + buf += RNDUP(oa->oa_length) / sizeof (int32_t); + } + oa = &cmsg->rm_call.cb_verf; + IXDR_PUT_ENUM(buf, oa->oa_flavor); + IXDR_PUT_INT32(buf, oa->oa_length); + if (oa->oa_length) { + memmove(buf, oa->oa_base, oa->oa_length); + /* no real need.... + buf += RNDUP(oa->oa_length) / sizeof (int32_t); + */ + } + return (TRUE); + } + } + if (xdrs->x_op == XDR_DECODE) { + buf = XDR_INLINE(xdrs, 8 * BYTES_PER_XDR_UNIT); + if (buf != NULL) { + cmsg->rm_xid = IXDR_GET_U_INT32(buf); + cmsg->rm_direction = IXDR_GET_ENUM(buf, enum msg_type); + if (cmsg->rm_direction != CALL) { + return (FALSE); + } + cmsg->rm_call.cb_rpcvers = IXDR_GET_U_INT32(buf); + if (cmsg->rm_call.cb_rpcvers != RPC_MSG_VERSION) { + return (FALSE); + } + cmsg->rm_call.cb_prog = IXDR_GET_U_INT32(buf); + cmsg->rm_call.cb_vers = IXDR_GET_U_INT32(buf); + cmsg->rm_call.cb_proc = IXDR_GET_U_INT32(buf); + oa = &cmsg->rm_call.cb_cred; + oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); + oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); + if (oa->oa_length) { + if (oa->oa_length > MAX_AUTH_BYTES) { + return (FALSE); + } + if (oa->oa_base == NULL) { + oa->oa_base = (caddr_t) + mem_alloc(oa->oa_length); + if (oa->oa_base == NULL) + return (FALSE); + } + buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); + if (buf == NULL) { + if (xdr_opaque(xdrs, oa->oa_base, + oa->oa_length) == FALSE) { + return (FALSE); + } + } else { + memmove(oa->oa_base, buf, + oa->oa_length); + /* no real need.... + buf += RNDUP(oa->oa_length) / + sizeof (int32_t); + */ + } + } + oa = &cmsg->rm_call.cb_verf; + buf = XDR_INLINE(xdrs, 2 * BYTES_PER_XDR_UNIT); + if (buf == NULL) { + if (xdr_enum(xdrs, &oa->oa_flavor) == FALSE || + xdr_u_int(xdrs, &oa->oa_length) == FALSE) { + return (FALSE); + } + } else { + oa->oa_flavor = IXDR_GET_ENUM(buf, enum_t); + oa->oa_length = (u_int)IXDR_GET_U_INT32(buf); + } + if (oa->oa_length) { + if (oa->oa_length > MAX_AUTH_BYTES) { + return (FALSE); + } + if (oa->oa_base == NULL) { + oa->oa_base = (caddr_t) + mem_alloc(oa->oa_length); + if (oa->oa_base == NULL) + return (FALSE); + } + buf = XDR_INLINE(xdrs, RNDUP(oa->oa_length)); + if (buf == NULL) { + if (xdr_opaque(xdrs, oa->oa_base, + oa->oa_length) == FALSE) { + return (FALSE); + } + } else { + memmove(oa->oa_base, buf, + oa->oa_length); + /* no real need... + buf += RNDUP(oa->oa_length) / + sizeof (int32_t); + */ + } + } + return (TRUE); + } + } + if ( + xdr_u_int32_t(xdrs, &(cmsg->rm_xid)) && + xdr_enum(xdrs, (enum_t *)&(cmsg->rm_direction)) && + (cmsg->rm_direction == CALL) && + xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_rpcvers)) && + (cmsg->rm_call.cb_rpcvers == RPC_MSG_VERSION) && + xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_prog)) && + xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_vers)) && + xdr_u_int32_t(xdrs, &(cmsg->rm_call.cb_proc)) && + xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_cred)) ) + return (xdr_opaque_auth(xdrs, &(cmsg->rm_call.cb_verf))); + return (FALSE); +} |