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_spkm3_unseal.c b/net/sunrpc/auth_gss/gss_spkm3_unseal.c
new file mode 100644
index 0000000..65ce81b
--- /dev/null
+++ b/net/sunrpc/auth_gss/gss_spkm3_unseal.c
@@ -0,0 +1,128 @@
+/*
+ * 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 *qop_state, int toktype)
+{
+ s32 code;
+ struct xdr_netobj wire_cksum = {.len =0, .data = NULL};
+ struct xdr_netobj md5cksum = {.len = 0, .data = NULL};
+ unsigned char *ptr = (unsigned char *)read_token->data;
+ unsigned char *cksum;
+ int bodysize, md5elen;
+ int mic_hdrlen;
+ u32 ret = GSS_S_DEFECTIVE_TOKEN;
+
+ dprintk("RPC: spkm3_read_token read_token->len %d\n", read_token->len);
+
+ 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) {
+
+ 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;
+ code = make_checksum(CKSUMTYPE_RSA_MD5, ptr + 2,
+ mic_hdrlen + 2,
+ message_buffer, &md5cksum);
+
+ if (code)
+ goto out;
+
+ dprintk("RPC: spkm3_read_token: digest wire_cksum.len %d:\n",
+ wire_cksum.len);
+ dprintk(" md5cksum.data\n");
+ print_hexl((u32 *) md5cksum.data, 16, 0);
+ dprintk(" cksum.data:\n");
+ print_hexl((u32 *) wire_cksum.data, wire_cksum.len, 0);
+
+ ret = GSS_S_BAD_SIG;
+ code = memcmp(md5cksum.data, wire_cksum.data, wire_cksum.len);
+ if (code)
+ goto out;
+
+ } else {
+ dprintk("RPC: BAD or UNSUPPORTED SPKM3 token type: %d\n",toktype);
+ goto out;
+ }
+
+ /* XXX: need to add expiration and sequencing */
+ ret = GSS_S_COMPLETE;
+out:
+ if (md5cksum.data)
+ kfree(md5cksum.data);
+ if (wire_cksum.data)
+ kfree(wire_cksum.data);
+ return ret;
+}