FreeBSD/Linux Kernel Cross Reference
sys/rpc/rpcsec_gss/rpcsec_gss_conf.c

     /*-
      * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
      *
      * Copyright (c) 2008 Doug Rabson
      * All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. 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.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
     */
    
    #include <sys/cdefs.h>
    __FBSDID("$FreeBSD$");
    
    #include <sys/param.h>
    #include <sys/systm.h>
    #include <sys/kobj.h>
    #include <sys/lock.h>
    #include <sys/malloc.h>
    #include <sys/mutex.h>
    
    #include <rpc/rpc.h>
    #include <rpc/rpcsec_gss.h>
    
    #include "rpcsec_gss_int.h"
    
    bool_t
    rpc_gss_mech_to_oid(const char *mech, gss_OID *oid_ret)
    {
            gss_OID oid = kgss_find_mech_by_name(mech);
    
            if (oid) {
                    *oid_ret = oid;
                    return (TRUE);
            }
            _rpc_gss_set_error(RPC_GSS_ER_SYSTEMERROR, ENOENT);
            return (FALSE);
    }
    
    bool_t
    rpc_gss_oid_to_mech(gss_OID oid, const char **mech_ret)
    {
            const char *name = kgss_find_mech_by_oid(oid);
    
            if (name) {
                    *mech_ret = name;
                    return (TRUE);
            }
            _rpc_gss_set_error(RPC_GSS_ER_SYSTEMERROR, ENOENT);
            return (FALSE);
    }
    
    bool_t
    rpc_gss_qop_to_num(const char *qop, const char *mech, u_int *num_ret)
    {
    
            if (!strcmp(qop, "default")) {
                    *num_ret = GSS_C_QOP_DEFAULT;
                    return (TRUE);
            }
            _rpc_gss_set_error(RPC_GSS_ER_SYSTEMERROR, ENOENT);
            return (FALSE);
    }
    
    const char *
    _rpc_gss_num_to_qop(const char *mech, u_int num)
    {
    
            if (num == GSS_C_QOP_DEFAULT)
                    return "default";
    
            return (NULL);
    }
    
    const char **
    rpc_gss_get_mechanisms(void)
    {
            static const char **mech_names = NULL;
            struct kgss_mech *km;
            int count;
    
            if (mech_names)
                   return (mech_names);
   
           count = 0;
           LIST_FOREACH(km, &kgss_mechs, km_link) {
                   count++;
           }
           count++;
   
           mech_names = malloc(count * sizeof(const char *), M_RPC, M_WAITOK);
           count = 0;
           LIST_FOREACH(km, &kgss_mechs, km_link) {
                   mech_names[count++] = km->km_mech_name;
           }
           mech_names[count++] = NULL;
           
           return (mech_names);
   }
   
   #if 0
   const char **
   rpc_gss_get_mech_info(const char *mech, rpc_gss_service_t *service)
   {
           struct mech_info *info;
   
           _rpc_gss_load_mech();
           _rpc_gss_load_qop();
           SLIST_FOREACH(info, &mechs, link) {
                   if (!strcmp(mech, info->name)) {
                           /*
                            * I'm not sure what to do with service
                            * here. The Solaris manpages are not clear on
                            * the subject and the OpenSolaris code just
                            * sets it to rpc_gss_svc_privacy
                            * unconditionally with a comment noting that
                            * it is bogus.
                            */
                           *service = rpc_gss_svc_privacy;
                           return info->qops;
                   }
           }
   
           _rpc_gss_set_error(RPC_GSS_ER_SYSTEMERROR, ENOENT);
           return (NULL);
   }
   #endif
   
   bool_t
   rpc_gss_get_versions(u_int *vers_hi, u_int *vers_lo)
   {
   
           *vers_hi = 1;
           *vers_lo = 1;
           return (TRUE);
   }
   
   bool_t
   rpc_gss_is_installed(const char *mech)
   {
           gss_OID oid = kgss_find_mech_by_name(mech);
   
           if (oid)
                   return (TRUE);
           else
                   return (FALSE);
   }
   

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