/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <string.h>
#include <sys/types.h>
#include <sys/tiuser.h>
#include <rpc/types.h>
#include <rpc/xdr.h>
#include <rpc/auth.h>
#include <rpc/clnt.h>
#include <rpc/rpc_msg.h>
#include "snoop.h"

#define RPC_TRANSIENT_START     0x40000000
#define RPC_TRANSIENT_END       0x5fffffff

int rpcsec_gss_control_proc(int type, int flags, int xid);

int rpcsec_gss_pre_proto(int type, int flags, int xid,
                                int prog, int vers, int proc);

void rpcsec_gss_post_proto(int flags, int xid);

void
protoprint(flags, type, xid, prog, vers, proc, data, len)
        ulong_t xid;
        int flags, type, prog, vers, proc;
        char *data;
        int len;
{
        char *name;
        void (*interpreter)(int, int, int, int, int, char *, int);

        switch (prog) {
        case 100000:    interpreter = interpret_pmap;           break;
        case 100001:    interpreter = interpret_rstat;          break;
        case 100003:    interpreter = interpret_nfs;            break;
        case 100004:    interpreter = interpret_nis;            break;
        case 100005:    interpreter = interpret_mount;          break;
        case 100007:    interpreter = interpret_nisbind;        break;
        case 100011:    interpreter = interpret_rquota;         break;
        case 100021:    interpreter = interpret_nlm;            break;
        case 100026:    interpreter = interpret_bparam;         break;
        case 100227:    interpreter = interpret_nfs_acl;        break;
        case 150006:    interpreter = interpret_solarnet_fw;    break;
        default:        interpreter = NULL;
        }

        /*
         * if rpc in transient range and proc is 0 or 1, then
         * guess that it is the nfsv4 callback protocol
         */
        if (prog >= RPC_TRANSIENT_START && prog <= RPC_TRANSIENT_END &&
            (proc == 0 || proc == 1))
                interpreter = interpret_nfs4_cb;

        /*
         *  If the RPC header indicates it's using the RPCSEC_GSS_*
         *  control procedure, print it.
         */
        if (rpcsec_gss_control_proc(type, flags, xid)) {
                        return;
        }

        if (interpreter == NULL) {
                if (!(flags & F_SUM))
                        return;
                name = nameof_prog(prog);
                if (*name == '?' || strcmp(name, "transient") == 0)
                        return;
                (void) sprintf(get_sum_line(), "%s %c",
                        name,
                        type == CALL ? 'C' : 'R');
        } else {
                /* Pre-processing based on different RPCSEC_GSS services. */
                if (rpcsec_gss_pre_proto(type, flags, xid, prog, vers, proc))
                        return;

                (*interpreter) (flags, type, xid, vers, proc, data, len);

                /* Post-processing based on different RPCSEC_GSS services. */
                rpcsec_gss_post_proto(flags, xid);
        }
}