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Diffstat (limited to 'net/sunrpc/auth_gss/gss_spkm3_mech.c')
-rw-r--r--net/sunrpc/auth_gss/gss_spkm3_mech.c291
1 files changed, 0 insertions, 291 deletions
diff --git a/net/sunrpc/auth_gss/gss_spkm3_mech.c b/net/sunrpc/auth_gss/gss_spkm3_mech.c
deleted file mode 100644
index 39b3edc1469..00000000000
--- a/net/sunrpc/auth_gss/gss_spkm3_mech.c
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
- * linux/net/sunrpc/gss_spkm3_mech.c
- *
- * Copyright (c) 2003 The Regents of the University of Michigan.
- * All rights reserved.
- *
- * Andy Adamson <andros@umich.edu>
- * J. Bruce Fields <bfields@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/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/sunrpc/auth.h>
-#include <linux/in.h>
-#include <linux/sunrpc/svcauth_gss.h>
-#include <linux/sunrpc/gss_spkm3.h>
-#include <linux/sunrpc/xdr.h>
-#include <linux/crypto.h>
-
-#ifdef RPC_DEBUG
-# define RPCDBG_FACILITY RPCDBG_AUTH
-#endif
-
-static const void *
-simple_get_bytes(const void *p, const void *end, void *res, int len)
-{
- const void *q = (const void *)((const char *)p + len);
- if (unlikely(q > end || q < p))
- return ERR_PTR(-EFAULT);
- memcpy(res, p, len);
- return q;
-}
-
-static const void *
-simple_get_netobj(const void *p, const void *end, struct xdr_netobj *res)
-{
- const void *q;
- unsigned int len;
- p = simple_get_bytes(p, end, &len, sizeof(len));
- if (IS_ERR(p))
- return p;
- res->len = len;
- if (len == 0) {
- res->data = NULL;
- return p;
- }
- q = (const void *)((const char *)p + len);
- if (unlikely(q > end || q < p))
- return ERR_PTR(-EFAULT);
- res->data = kmalloc(len, GFP_KERNEL);
- if (unlikely(res->data == NULL))
- return ERR_PTR(-ENOMEM);
- memcpy(res->data, p, len);
- return q;
-}
-
-static inline const void *
-get_key(const void *p, const void *end, struct crypto_tfm **res, int *resalg)
-{
- struct xdr_netobj key = { 0 };
- int alg_mode,setkey = 0;
- char *alg_name;
-
- p = simple_get_bytes(p, end, resalg, sizeof(*resalg));
- if (IS_ERR(p))
- goto out_err;
- p = simple_get_netobj(p, end, &key);
- if (IS_ERR(p))
- goto out_err;
-
- switch (*resalg) {
- case NID_des_cbc:
- alg_name = "des";
- alg_mode = CRYPTO_TFM_MODE_CBC;
- setkey = 1;
- break;
- case NID_md5:
- if (key.len == 0) {
- dprintk("RPC: SPKM3 get_key: NID_md5 zero Key length\n");
- }
- alg_name = "md5";
- alg_mode = 0;
- setkey = 0;
- break;
- default:
- dprintk("RPC: SPKM3 get_key: unsupported algorithm %d", *resalg);
- goto out_err_free_key;
- }
- if (!(*res = crypto_alloc_tfm(alg_name, alg_mode)))
- goto out_err_free_key;
- if (setkey) {
- if (crypto_cipher_setkey(*res, key.data, key.len))
- goto out_err_free_tfm;
- }
-
- if(key.len > 0)
- kfree(key.data);
- return p;
-
-out_err_free_tfm:
- crypto_free_tfm(*res);
-out_err_free_key:
- if(key.len > 0)
- kfree(key.data);
- p = ERR_PTR(-EINVAL);
-out_err:
- return p;
-}
-
-static int
-gss_import_sec_context_spkm3(const void *p, size_t len,
- struct gss_ctx *ctx_id)
-{
- const void *end = (const void *)((const char *)p + len);
- struct spkm3_ctx *ctx;
-
- if (!(ctx = kmalloc(sizeof(*ctx), GFP_KERNEL)))
- goto out_err;
- memset(ctx, 0, sizeof(*ctx));
-
- p = simple_get_netobj(p, end, &ctx->ctx_id);
- if (IS_ERR(p))
- goto out_err_free_ctx;
-
- p = simple_get_bytes(p, end, &ctx->qop, sizeof(ctx->qop));
- if (IS_ERR(p))
- goto out_err_free_ctx_id;
-
- p = simple_get_netobj(p, end, &ctx->mech_used);
- if (IS_ERR(p))
- goto out_err_free_mech;
-
- p = simple_get_bytes(p, end, &ctx->ret_flags, sizeof(ctx->ret_flags));
- if (IS_ERR(p))
- goto out_err_free_mech;
-
- p = simple_get_bytes(p, end, &ctx->req_flags, sizeof(ctx->req_flags));
- if (IS_ERR(p))
- goto out_err_free_mech;
-
- p = simple_get_netobj(p, end, &ctx->share_key);
- if (IS_ERR(p))
- goto out_err_free_s_key;
-
- p = get_key(p, end, &ctx->derived_conf_key, &ctx->conf_alg);
- if (IS_ERR(p))
- goto out_err_free_s_key;
-
- p = get_key(p, end, &ctx->derived_integ_key, &ctx->intg_alg);
- if (IS_ERR(p))
- goto out_err_free_key1;
-
- p = simple_get_bytes(p, end, &ctx->keyestb_alg, sizeof(ctx->keyestb_alg));
- if (IS_ERR(p))
- goto out_err_free_key2;
-
- p = simple_get_bytes(p, end, &ctx->owf_alg, sizeof(ctx->owf_alg));
- if (IS_ERR(p))
- goto out_err_free_key2;
-
- if (p != end)
- goto out_err_free_key2;
-
- ctx_id->internal_ctx_id = ctx;
-
- dprintk("Succesfully imported new spkm context.\n");
- return 0;
-
-out_err_free_key2:
- crypto_free_tfm(ctx->derived_integ_key);
-out_err_free_key1:
- crypto_free_tfm(ctx->derived_conf_key);
-out_err_free_s_key:
- kfree(ctx->share_key.data);
-out_err_free_mech:
- kfree(ctx->mech_used.data);
-out_err_free_ctx_id:
- kfree(ctx->ctx_id.data);
-out_err_free_ctx:
- kfree(ctx);
-out_err:
- return PTR_ERR(p);
-}
-
-static void
-gss_delete_sec_context_spkm3(void *internal_ctx) {
- struct spkm3_ctx *sctx = internal_ctx;
-
- crypto_free_tfm(sctx->derived_integ_key);
- crypto_free_tfm(sctx->derived_conf_key);
- kfree(sctx->share_key.data);
- kfree(sctx->mech_used.data);
- kfree(sctx);
-}
-
-static u32
-gss_verify_mic_spkm3(struct gss_ctx *ctx,
- struct xdr_buf *signbuf,
- struct xdr_netobj *checksum)
-{
- u32 maj_stat = 0;
- struct spkm3_ctx *sctx = ctx->internal_ctx_id;
-
- dprintk("RPC: gss_verify_mic_spkm3 calling spkm3_read_token\n");
- maj_stat = spkm3_read_token(sctx, checksum, signbuf, SPKM_MIC_TOK);
-
- dprintk("RPC: gss_verify_mic_spkm3 returning %d\n", maj_stat);
- return maj_stat;
-}
-
-static u32
-gss_get_mic_spkm3(struct gss_ctx *ctx,
- struct xdr_buf *message_buffer,
- struct xdr_netobj *message_token)
-{
- u32 err = 0;
- struct spkm3_ctx *sctx = ctx->internal_ctx_id;
-
- dprintk("RPC: gss_get_mic_spkm3\n");
-
- err = spkm3_make_token(sctx, message_buffer,
- message_token, SPKM_MIC_TOK);
- return err;
-}
-
-static struct gss_api_ops gss_spkm3_ops = {
- .gss_import_sec_context = gss_import_sec_context_spkm3,
- .gss_get_mic = gss_get_mic_spkm3,
- .gss_verify_mic = gss_verify_mic_spkm3,
- .gss_delete_sec_context = gss_delete_sec_context_spkm3,
-};
-
-static struct pf_desc gss_spkm3_pfs[] = {
- {RPC_AUTH_GSS_SPKM, RPC_GSS_SVC_NONE, "spkm3"},
- {RPC_AUTH_GSS_SPKMI, RPC_GSS_SVC_INTEGRITY, "spkm3i"},
-};
-
-static struct gss_api_mech gss_spkm3_mech = {
- .gm_name = "spkm3",
- .gm_owner = THIS_MODULE,
- .gm_ops = &gss_spkm3_ops,
- .gm_pf_num = ARRAY_SIZE(gss_spkm3_pfs),
- .gm_pfs = gss_spkm3_pfs,
-};
-
-static int __init init_spkm3_module(void)
-{
- int status;
-
- status = gss_mech_register(&gss_spkm3_mech);
- if (status)
- printk("Failed to register spkm3 gss mechanism!\n");
- return 0;
-}
-
-static void __exit cleanup_spkm3_module(void)
-{
- gss_mech_unregister(&gss_spkm3_mech);
-}
-
-MODULE_LICENSE("GPL");
-module_init(init_spkm3_module);
-module_exit(cleanup_spkm3_module);
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