Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/net/sunrpc/auth_gss/gss_krb5_crypto.c b/net/sunrpc/auth_gss/gss_krb5_crypto.c
new file mode 100644
index 0000000..24c21f2
--- /dev/null
+++ b/net/sunrpc/auth_gss/gss_krb5_crypto.c
@@ -0,0 +1,209 @@
+/*
+ * linux/net/sunrpc/gss_krb5_crypto.c
+ *
+ * Copyright (c) 2000 The Regents of the University of Michigan.
+ * All rights reserved.
+ *
+ * Andy Adamson <andros@umich.edu>
+ * Bruce Fields <bfields@umich.edu>
+ */
+
+/*
+ * Copyright (C) 1998 by the FundsXpress, INC.
+ *
+ * All rights reserved.
+ *
+ * Export of this software from the United States of America may require
+ * a specific license from the United States Government. It is the
+ * responsibility of any person or organization contemplating export to
+ * obtain such a license before exporting.
+ *
+ * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
+ * distribute this software and its documentation for any purpose and
+ * without fee is hereby granted, provided that the above copyright
+ * notice appear in all copies and that both that copyright notice and
+ * this permission notice appear in supporting documentation, and that
+ * the name of FundsXpress. not be used in advertising or publicity pertaining
+ * to distribution of the software without specific, written prior
+ * permission. FundsXpress makes no representations about the suitability of
+ * this software for any purpose. It is provided "as is" without express
+ * or implied warranty.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <asm/scatterlist.h>
+#include <linux/crypto.h>
+#include <linux/highmem.h>
+#include <linux/pagemap.h>
+#include <linux/sunrpc/gss_krb5.h>
+
+#ifdef RPC_DEBUG
+# define RPCDBG_FACILITY RPCDBG_AUTH
+#endif
+
+u32
+krb5_encrypt(
+ struct crypto_tfm *tfm,
+ void * iv,
+ void * in,
+ void * out,
+ int length)
+{
+ u32 ret = -EINVAL;
+ struct scatterlist sg[1];
+ u8 local_iv[16] = {0};
+
+ dprintk("RPC: krb5_encrypt: input data:\n");
+ print_hexl((u32 *)in, length, 0);
+
+ if (length % crypto_tfm_alg_blocksize(tfm) != 0)
+ goto out;
+
+ if (crypto_tfm_alg_ivsize(tfm) > 16) {
+ dprintk("RPC: gss_k5encrypt: tfm iv size to large %d\n",
+ crypto_tfm_alg_ivsize(tfm));
+ goto out;
+ }
+
+ if (iv)
+ memcpy(local_iv, iv, crypto_tfm_alg_ivsize(tfm));
+
+ memcpy(out, in, length);
+ sg[0].page = virt_to_page(out);
+ sg[0].offset = offset_in_page(out);
+ sg[0].length = length;
+
+ ret = crypto_cipher_encrypt_iv(tfm, sg, sg, length, local_iv);
+
+ dprintk("RPC: krb5_encrypt: output data:\n");
+ print_hexl((u32 *)out, length, 0);
+out:
+ dprintk("RPC: krb5_encrypt returns %d\n",ret);
+ return(ret);
+}
+
+EXPORT_SYMBOL(krb5_encrypt);
+
+u32
+krb5_decrypt(
+ struct crypto_tfm *tfm,
+ void * iv,
+ void * in,
+ void * out,
+ int length)
+{
+ u32 ret = -EINVAL;
+ struct scatterlist sg[1];
+ u8 local_iv[16] = {0};
+
+ dprintk("RPC: krb5_decrypt: input data:\n");
+ print_hexl((u32 *)in, length, 0);
+
+ if (length % crypto_tfm_alg_blocksize(tfm) != 0)
+ goto out;
+
+ if (crypto_tfm_alg_ivsize(tfm) > 16) {
+ dprintk("RPC: gss_k5decrypt: tfm iv size to large %d\n",
+ crypto_tfm_alg_ivsize(tfm));
+ goto out;
+ }
+ if (iv)
+ memcpy(local_iv,iv, crypto_tfm_alg_ivsize(tfm));
+
+ memcpy(out, in, length);
+ sg[0].page = virt_to_page(out);
+ sg[0].offset = offset_in_page(out);
+ sg[0].length = length;
+
+ ret = crypto_cipher_decrypt_iv(tfm, sg, sg, length, local_iv);
+
+ dprintk("RPC: krb5_decrypt: output_data:\n");
+ print_hexl((u32 *)out, length, 0);
+out:
+ dprintk("RPC: gss_k5decrypt returns %d\n",ret);
+ return(ret);
+}
+
+EXPORT_SYMBOL(krb5_decrypt);
+
+static void
+buf_to_sg(struct scatterlist *sg, char *ptr, int len) {
+ sg->page = virt_to_page(ptr);
+ sg->offset = offset_in_page(ptr);
+ sg->length = len;
+}
+
+/* checksum the plaintext data and hdrlen bytes of the token header */
+s32
+make_checksum(s32 cksumtype, char *header, int hdrlen, struct xdr_buf *body,
+ struct xdr_netobj *cksum)
+{
+ char *cksumname;
+ struct crypto_tfm *tfm = NULL; /* XXX add to ctx? */
+ struct scatterlist sg[1];
+ u32 code = GSS_S_FAILURE;
+ int len, thislen, offset;
+ int i;
+
+ switch (cksumtype) {
+ case CKSUMTYPE_RSA_MD5:
+ cksumname = "md5";
+ break;
+ default:
+ dprintk("RPC: krb5_make_checksum:"
+ " unsupported checksum %d", cksumtype);
+ goto out;
+ }
+ if (!(tfm = crypto_alloc_tfm(cksumname, 0)))
+ goto out;
+ cksum->len = crypto_tfm_alg_digestsize(tfm);
+ if ((cksum->data = kmalloc(cksum->len, GFP_KERNEL)) == NULL)
+ goto out;
+
+ crypto_digest_init(tfm);
+ buf_to_sg(sg, header, hdrlen);
+ crypto_digest_update(tfm, sg, 1);
+ if (body->head[0].iov_len) {
+ buf_to_sg(sg, body->head[0].iov_base, body->head[0].iov_len);
+ crypto_digest_update(tfm, sg, 1);
+ }
+
+ len = body->page_len;
+ if (len != 0) {
+ offset = body->page_base & (PAGE_CACHE_SIZE - 1);
+ i = body->page_base >> PAGE_CACHE_SHIFT;
+ thislen = PAGE_CACHE_SIZE - offset;
+ do {
+ if (thislen > len)
+ thislen = len;
+ sg->page = body->pages[i];
+ sg->offset = offset;
+ sg->length = thislen;
+ kmap(sg->page); /* XXX kmap_atomic? */
+ crypto_digest_update(tfm, sg, 1);
+ kunmap(sg->page);
+ len -= thislen;
+ i++;
+ offset = 0;
+ thislen = PAGE_CACHE_SIZE;
+ } while(len != 0);
+ }
+ if (body->tail[0].iov_len) {
+ buf_to_sg(sg, body->tail[0].iov_base, body->tail[0].iov_len);
+ crypto_digest_update(tfm, sg, 1);
+ }
+ crypto_digest_final(tfm, cksum->data);
+ code = 0;
+out:
+ if (tfm)
+ crypto_free_tfm(tfm);
+ return code;
+}
+
+EXPORT_SYMBOL(make_checksum);