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Diffstat (limited to 'net/sunrpc/auth_gss/gss_spkm3_seal.c')
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_seal.c186
1 files changed, 0 insertions, 186 deletions
diff --git a/net/sunrpc/auth_gss/gss_spkm3_seal.c b/net/sunrpc/auth_gss/gss_spkm3_seal.c
deleted file mode 100644
index 5a3a65a0e2b4..000000000000
--- a/net/sunrpc/auth_gss/gss_spkm3_seal.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- * linux/net/sunrpc/gss_spkm3_seal.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/jiffies.h>
-#include <linux/sunrpc/gss_spkm3.h>
-#include <linux/random.h>
-#include <linux/crypto.h>
-#include <linux/pagemap.h>
-#include <linux/scatterlist.h>
-#include <linux/sunrpc/xdr.h>
-
-#ifdef RPC_DEBUG
-# define RPCDBG_FACILITY RPCDBG_AUTH
-#endif
-
-const struct xdr_netobj hmac_md5_oid = { 8, "\x2B\x06\x01\x05\x05\x08\x01\x01"};
-const struct xdr_netobj cast5_cbc_oid = {9, "\x2A\x86\x48\x86\xF6\x7D\x07\x42\x0A"};
-
-/*
- * spkm3_make_token()
- *
- * Only SPKM_MIC_TOK with md5 intg-alg is supported
- */
-
-u32
-spkm3_make_token(struct spkm3_ctx *ctx,
- struct xdr_buf * text, struct xdr_netobj * token,
- int toktype)
-{
- s32 checksum_type;
- char tokhdrbuf[25];
- char cksumdata[16];
- struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata};
- struct xdr_netobj mic_hdr = {.len = 0, .data = tokhdrbuf};
- int tokenlen = 0;
- unsigned char *ptr;
- s32 now;
- int ctxelen = 0, ctxzbit = 0;
- int md5elen = 0, md5zbit = 0;
-
- now = jiffies;
-
- if (ctx->ctx_id.len != 16) {
- dprintk("RPC: spkm3_make_token BAD ctx_id.len %d\n",
- ctx->ctx_id.len);
- goto out_err;
- }
-
- if (!g_OID_equal(&ctx->intg_alg, &hmac_md5_oid)) {
- dprintk("RPC: gss_spkm3_seal: unsupported I-ALG "
- "algorithm. only support hmac-md5 I-ALG.\n");
- goto out_err;
- } else
- checksum_type = CKSUMTYPE_HMAC_MD5;
-
- if (!g_OID_equal(&ctx->conf_alg, &cast5_cbc_oid)) {
- dprintk("RPC: gss_spkm3_seal: unsupported C-ALG "
- "algorithm\n");
- goto out_err;
- }
-
- if (toktype == SPKM_MIC_TOK) {
- /* Calculate checksum over the mic-header */
- asn1_bitstring_len(&ctx->ctx_id, &ctxelen, &ctxzbit);
- spkm3_mic_header(&mic_hdr.data, &mic_hdr.len, ctx->ctx_id.data,
- ctxelen, ctxzbit);
- if (make_spkm3_checksum(checksum_type, &ctx->derived_integ_key,
- (char *)mic_hdr.data, mic_hdr.len,
- text, 0, &md5cksum))
- goto out_err;
-
- asn1_bitstring_len(&md5cksum, &md5elen, &md5zbit);
- tokenlen = 10 + ctxelen + 1 + md5elen + 1;
-
- /* Create token header using generic routines */
- token->len = g_token_size(&ctx->mech_used, tokenlen + 2);
-
- ptr = token->data;
- g_make_token_header(&ctx->mech_used, tokenlen + 2, &ptr);
-
- spkm3_make_mic_token(&ptr, tokenlen, &mic_hdr, &md5cksum, md5elen, md5zbit);
- } else if (toktype == SPKM_WRAP_TOK) { /* Not Supported */
- dprintk("RPC: gss_spkm3_seal: SPKM_WRAP_TOK "
- "not supported\n");
- goto out_err;
- }
-
- /* XXX need to implement sequence numbers, and ctx->expired */
-
- return GSS_S_COMPLETE;
-out_err:
- token->data = NULL;
- token->len = 0;
- return GSS_S_FAILURE;
-}
-
-static int
-spkm3_checksummer(struct scatterlist *sg, void *data)
-{
- struct hash_desc *desc = data;
-
- return crypto_hash_update(desc, sg, sg->length);
-}
-
-/* checksum the plaintext data and hdrlen bytes of the token header */
-s32
-make_spkm3_checksum(s32 cksumtype, struct xdr_netobj *key, char *header,
- unsigned int hdrlen, struct xdr_buf *body,
- unsigned int body_offset, struct xdr_netobj *cksum)
-{
- char *cksumname;
- struct hash_desc desc; /* XXX add to ctx? */
- struct scatterlist sg[1];
- int err;
-
- switch (cksumtype) {
- case CKSUMTYPE_HMAC_MD5:
- cksumname = "hmac(md5)";
- break;
- default:
- dprintk("RPC: spkm3_make_checksum:"
- " unsupported checksum %d", cksumtype);
- return GSS_S_FAILURE;
- }
-
- if (key->data == NULL || key->len <= 0) return GSS_S_FAILURE;
-
- desc.tfm = crypto_alloc_hash(cksumname, 0, CRYPTO_ALG_ASYNC);
- if (IS_ERR(desc.tfm))
- return GSS_S_FAILURE;
- cksum->len = crypto_hash_digestsize(desc.tfm);
- desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
-
- err = crypto_hash_setkey(desc.tfm, key->data, key->len);
- if (err)
- goto out;
-
- err = crypto_hash_init(&desc);
- if (err)
- goto out;
-
- sg_init_one(sg, header, hdrlen);
- crypto_hash_update(&desc, sg, sg->length);
-
- xdr_process_buf(body, body_offset, body->len - body_offset,
- spkm3_checksummer, &desc);
- crypto_hash_final(&desc, cksum->data);
-
-out:
- crypto_free_hash(desc.tfm);
-
- return err ? GSS_S_FAILURE : 0;
-}