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Diffstat (limited to 'net/sunrpc/auth_gss/gss_spkm3_unseal.c')
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_unseal.c127
1 files changed, 0 insertions, 127 deletions
diff --git a/net/sunrpc/auth_gss/gss_spkm3_unseal.c b/net/sunrpc/auth_gss/gss_spkm3_unseal.c
deleted file mode 100644
index cc21ee860bb6..000000000000
--- a/net/sunrpc/auth_gss/gss_spkm3_unseal.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * linux/net/sunrpc/gss_spkm3_unseal.c
- *
- * Copyright (c) 2003 The Regents of the University of Michigan.
- * All rights reserved.
- *
- * Andy Adamson <andros@umich.edu>
- *
- * 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.
- * 3. Neither the name of the University 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 ``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 REGENTS 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 <linux/types.h>
-#include <linux/slab.h>
-#include <linux/jiffies.h>
-#include <linux/sunrpc/gss_spkm3.h>
-#include <linux/crypto.h>
-
-#ifdef RPC_DEBUG
-# define RPCDBG_FACILITY RPCDBG_AUTH
-#endif
-
-/*
- * spkm3_read_token()
- *
- * only SPKM_MIC_TOK with md5 intg-alg is supported
- */
-u32
-spkm3_read_token(struct spkm3_ctx *ctx,
- struct xdr_netobj *read_token, /* checksum */
- struct xdr_buf *message_buffer, /* signbuf */
- int toktype)
-{
- s32 checksum_type;
- s32 code;
- struct xdr_netobj wire_cksum = {.len =0, .data = NULL};
- char cksumdata[16];
- struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
- unsigned char *ptr = (unsigned char *)read_token->data;
- unsigned char *cksum;
- int bodysize, md5elen;
- int mic_hdrlen;
- u32 ret = GSS_S_DEFECTIVE_TOKEN;
-
- if (g_verify_token_header((struct xdr_netobj *) &ctx->mech_used,
- &bodysize, &ptr, read_token->len))
- goto out;
-
- /* decode the token */
-
- if (toktype != SPKM_MIC_TOK) {
- dprintk("RPC: BAD SPKM3 token type: %d\n", toktype);
- goto out;
- }
-
- if ((ret = spkm3_verify_mic_token(&ptr, &mic_hdrlen, &cksum)))
- goto out;
-
- if (*cksum++ != 0x03) {
- dprintk("RPC: spkm3_read_token BAD checksum type\n");
- goto out;
- }
- md5elen = *cksum++;
- cksum++; /* move past the zbit */
-
- if (!decode_asn1_bitstring(&wire_cksum, cksum, md5elen - 1, 16))
- goto out;
-
- /* HARD CODED FOR MD5 */
-
- /* compute the checksum of the message.
- * ptr + 2 = start of header piece of checksum
- * mic_hdrlen + 2 = length of header piece of checksum
- */
- ret = GSS_S_DEFECTIVE_TOKEN;
- if (!g_OID_equal(&ctx->intg_alg, &hmac_md5_oid)) {
- dprintk("RPC: gss_spkm3_seal: unsupported I-ALG "
- "algorithm\n");
- goto out;
- }
-
- checksum_type = CKSUMTYPE_HMAC_MD5;
-
- code = make_spkm3_checksum(checksum_type,
- &ctx->derived_integ_key, ptr + 2, mic_hdrlen + 2,
- message_buffer, 0, &md5cksum);
-
- if (code)
- goto out;
-
- ret = GSS_S_BAD_SIG;
- code = memcmp(md5cksum.data, wire_cksum.data, wire_cksum.len);
- if (code) {
- dprintk("RPC: bad MIC checksum\n");
- goto out;
- }
-
-
- /* XXX: need to add expiration and sequencing */
- ret = GSS_S_COMPLETE;
-out:
- kfree(wire_cksum.data);
- return ret;
-}