gss_verify_mic.c

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    1 /*-
    2  * Copyright (c) 2008 Isilon Inc http://www.isilon.com/
    3  * Authors: Doug Rabson <dfr@rabson.org>
    4  * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org>
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  */
   27 
   28 #include <sys/cdefs.h>
   29 __FBSDID("$FreeBSD: releng/11.2/sys/kgssapi/gss_verify_mic.c 184588 2008-11-03 10:38:00Z dfr $");
   30 
   31 #include <sys/param.h>
   32 #include <sys/kernel.h>
   33 #include <sys/kobj.h>
   34 #include <sys/malloc.h>
   35 #include <sys/mbuf.h>
   36 
   37 #include <kgssapi/gssapi.h>
   38 #include <kgssapi/gssapi_impl.h>
   39 
   40 #include "kgss_if.h"
   41 
   42 OM_uint32
   43 gss_verify_mic(OM_uint32 *minor_status,
   44     const gss_ctx_id_t ctx,
   45     const gss_buffer_t message_buffer,
   46     const gss_buffer_t token_buffer,
   47     gss_qop_t *qop_state)
   48 {
   49         OM_uint32 maj_stat;
   50         struct mbuf *m, *mic;
   51 
   52         if (!ctx) {
   53                 *minor_status = 0;
   54                 return (GSS_S_NO_CONTEXT);
   55         }
   56 
   57         MGET(m, M_WAITOK, MT_DATA);
   58         if (message_buffer->length > MLEN)
   59                 MCLGET(m, M_WAITOK);
   60         m_append(m, message_buffer->length, message_buffer->value);
   61 
   62         MGET(mic, M_WAITOK, MT_DATA);
   63         if (token_buffer->length > MLEN)
   64                 MCLGET(mic, M_WAITOK);
   65         m_append(mic, token_buffer->length, token_buffer->value);
   66 
   67         maj_stat = KGSS_VERIFY_MIC(ctx, minor_status, m, mic, qop_state);
   68 
   69         m_freem(m);
   70         m_freem(mic);
   71 
   72         return (maj_stat);
   73 }
   74 
   75 OM_uint32
   76 gss_verify_mic_mbuf(OM_uint32 *minor_status, const gss_ctx_id_t ctx,
   77     struct mbuf *m, struct mbuf *mic, gss_qop_t *qop_state)
   78 {
   79 
   80         if (!ctx) {
   81                 *minor_status = 0;
   82                 return (GSS_S_NO_CONTEXT);
   83         }
   84 
   85         return (KGSS_VERIFY_MIC(ctx, minor_status, m, mic, qop_state));
   86 }
   87

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FreeBSD/Linux Kernel Cross Reference sys/kgssapi/gss_verify_mic.c

FreeBSD/Linux Kernel Cross Reference
sys/kgssapi/gss_verify_mic.c