Return to libnet_build_rpc.c CVS log

Up to [ELWIX - Embedded LightWeight unIX -] / embedaddon / libnet / src

Annotation of embedaddon/libnet/src/libnet_build_rpc.c, revision 1.1

1.1     ! misho       1: /*
        !             2:  *
        !             3:  *  libnet
        !             4:  *  libnet_build_rpc.c - RPC packet assembler
        !             5:  *
        !             6:  *  Copyright (c) 1998 - 2004 Mike D. Schiffman <mike@infonexus.com>
        !             7:  *                            Jason Damron <jdamron@stackheap.org>
        !             8:  *  All rights reserved.
        !             9:  *
        !            10:  * Redistribution and use in source and binary forms, with or without
        !            11:  * modification, are permitted provided that the following conditions
        !            12:  * are met:
        !            13:  * 1. Redistributions of source code must retain the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer.
        !            15:  * 2. Redistributions in binary form must reproduce the above copyright
        !            16:  *    notice, this list of conditions and the following disclaimer in the
        !            17:  *    documentation and/or other materials provided with the distribution.
        !            18:  *
        !            19:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
        !            20:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            21:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            22:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
        !            23:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            24:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            25:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            26:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            27:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            28:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            29:  * SUCH DAMAGE.
        !            30:  *
        !            31:  */
        !            32: 
        !            33: #if (HAVE_CONFIG_H)
        !            34: #include "../include/config.h"
        !            35: #endif
        !            36: #if (!(_WIN32) || (__CYGWIN__)) 
        !            37: #include "../include/libnet.h"
        !            38: #else
        !            39: #include "../include/win32/libnet.h"
        !            40: #endif
        !            41: 
        !            42: libnet_ptag_t
        !            43: libnet_build_rpc_call(u_int32_t rm, u_int32_t xid, u_int32_t prog_num, 
        !            44: u_int32_t prog_vers, u_int32_t procedure, u_int32_t cflavor, u_int32_t clength, 
        !            45: u_int8_t *cdata, u_int32_t vflavor, u_int32_t vlength, u_int8_t *vdata, 
        !            46: u_int8_t *payload, u_int32_t payload_s, libnet_t *l, libnet_ptag_t ptag)
        !            47: {
        !            48:     u_int32_t n, h;
        !            49:     libnet_pblock_t *p;
        !            50:     struct libnet_rpc_call_tcp_hdr rpc_hdr;
        !            51: 
        !            52:     if (l == NULL)
        !            53:     { 
        !            54:         return (-1);
        !            55:     } 
        !            56: 
        !            57:     /* Credential and Verifier buffers not yet implemented.
        !            58:      * n = LIBNET_RPC_CALL_H + clength + vlength + payload_s;
        !            59:      */
        !            60: 
        !            61:     if (rm)
        !            62:     {
        !            63:         n = LIBNET_RPC_CALL_TCP_H + payload_s;
        !            64:     } 
        !            65:     else
        !            66:     {
        !            67:         n = LIBNET_RPC_CALL_H + payload_s;
        !            68:     }
        !            69:  
        !            70:     h = 0;
        !            71: 
        !            72:     /*
        !            73:      *  Find the existing protocol block if a ptag is specified, or create
        !            74:      *  a new one.
        !            75:      */
        !            76:     p = libnet_pblock_probe(l, ptag, n, LIBNET_PBLOCK_RPC_CALL_H);
        !            77:     if (p == NULL)
        !            78:     {
        !            79:         return (-1);
        !            80:     }
        !            81: 
        !            82:     memset(&rpc_hdr, 0, sizeof(rpc_hdr));
        !            83:     if (rm)
        !            84:     {
        !            85:        rpc_hdr.rpc_record_marking                 = htonl(rm + payload_s);
        !            86:     }
        !            87:     rpc_hdr.rpc_common.rpc_xid                    = htonl(xid);
        !            88:     rpc_hdr.rpc_common.rpc_type                   = LIBNET_RPC_CALL;
        !            89:     rpc_hdr.rpc_common.rpc_call.rpc_rpcvers       = htonl(LIBNET_RPC_VERS);
        !            90:     rpc_hdr.rpc_common.rpc_call.rpc_prognum       = htonl(prog_num);
        !            91:     rpc_hdr.rpc_common.rpc_call.rpc_vers          = htonl(prog_vers);
        !            92:     rpc_hdr.rpc_common.rpc_call.rpc_procedure     = htonl(procedure);
        !            93:     /*  XXX Eventually should allow for opaque auth data. */
        !            94:     rpc_hdr.rpc_common.rpc_call.rpc_credentials.rpc_auth_flavor= htonl(cflavor);
        !            95:     rpc_hdr.rpc_common.rpc_call.rpc_credentials.rpc_auth_length= htonl(clength);
        !            96:     rpc_hdr.rpc_common.rpc_call.rpc_verifier.rpc_auth_flavor   = htonl(vflavor);
        !            97:     rpc_hdr.rpc_common.rpc_call.rpc_verifier.rpc_auth_length   = htonl(vlength);
        !            98: 
        !            99:     if (rm)
        !           100:     {
        !           101:         n = libnet_pblock_append(l, p, (u_int8_t *)&rpc_hdr, 
        !           102:                 LIBNET_RPC_CALL_TCP_H);
        !           103:     }
        !           104:     else
        !           105:     {
        !           106:         n = libnet_pblock_append(l, p, (u_int8_t *)&rpc_hdr.rpc_common, 
        !           107:                 LIBNET_RPC_CALL_H);
        !           108:     }
        !           109: 
        !           110:     if (n == -1)
        !           111:     {
        !           112:         goto bad;
        !           113:     }
        !           114:  
        !           115:     if ((payload && !payload_s) || (!payload && payload_s))
        !           116:     {
        !           117:         snprintf(l->err_buf, LIBNET_ERRBUF_SIZE,
        !           118:                            "%s(): payload inconsistency\n", __func__);
        !           119:         goto bad;
        !           120:     }
        !           121: 
        !           122:     if (payload && payload_s)
        !           123:     {
        !           124:         n = libnet_pblock_append(l, p, payload, payload_s);
        !           125:         if (n == -1)
        !           126:         {
        !           127:             goto bad;
        !           128:         }
        !           129:     }
        !           130: 
        !           131:     return (ptag ? ptag : libnet_pblock_update(l, p, h,
        !           132:             LIBNET_PBLOCK_RPC_CALL_H));
        !           133: bad:
        !           134:     libnet_pblock_delete(l, p);
        !           135:     return (-1);
        !           136: }
        !           137: 
        !           138: /* EOF */