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authorAndrew Bartlett <abartlet@samba.org>2004-07-12 04:26:50 +0000
committerGerald (Jerry) Carter <jerry@samba.org>2007-10-10 12:56:58 -0500
commitdf290b04df092d0a2c8cc1c33381a2d915184695 (patch)
treed9e4d2f42132fd11ed65cb1fa9217a16fd62c39a /source4/libcli/auth/gssapi_parse.c
parentdfeb4dd36f27e33d5b086648eb9647ddc6631115 (diff)
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r1457: Add the GSSAPI layer to our gensec_krb5 code.
Andrew Bartlett (This used to be commit 893a9a3865d7046d8b1cb0418aaf48b88beefa05)
Diffstat (limited to 'source4/libcli/auth/gssapi_parse.c')
-rw-r--r--source4/libcli/auth/gssapi_parse.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/source4/libcli/auth/gssapi_parse.c b/source4/libcli/auth/gssapi_parse.c
new file mode 100644
index 0000000000..4a80e1d799
--- /dev/null
+++ b/source4/libcli/auth/gssapi_parse.c
@@ -0,0 +1,88 @@
+/*
+ Unix SMB/CIFS implementation.
+
+ simple GSSAPI wrappers
+
+ Copyright (C) Andrew Tridgell 2001
+ Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2002
+ Copyright (C) Luke Howard 2003
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+/*
+ generate a krb5 GSS-API wrapper packet given a ticket
+*/
+DATA_BLOB gensec_gssapi_gen_krb5_wrap(TALLOC_CTX *mem_ctx, const DATA_BLOB *ticket, const uint8 tok_id[2])
+{
+ ASN1_DATA data;
+ DATA_BLOB ret;
+
+ ZERO_STRUCT(data);
+
+ asn1_push_tag(&data, ASN1_APPLICATION(0));
+ asn1_write_OID(&data, OID_KERBEROS5);
+
+ asn1_write(&data, tok_id, 2);
+ asn1_write(&data, ticket->data, ticket->length);
+ asn1_pop_tag(&data);
+
+ if (data.has_error) {
+ DEBUG(1,("Failed to build krb5 wrapper at offset %d\n", (int)data.ofs));
+ asn1_free(&data);
+ }
+
+ ret = data_blob_talloc(mem_ctx, data.data, data.length);
+ asn1_free(&data);
+
+ return ret;
+}
+
+/*
+ parse a krb5 GSS-API wrapper packet giving a ticket
+*/
+BOOL gensec_gssapi_parse_krb5_wrap(TALLOC_CTX *mem_ctx, const DATA_BLOB *blob, DATA_BLOB *ticket, uint8 tok_id[2])
+{
+ BOOL ret;
+ ASN1_DATA data;
+ int data_remaining;
+
+ asn1_load(&data, *blob);
+ asn1_start_tag(&data, ASN1_APPLICATION(0));
+ asn1_check_OID(&data, OID_KERBEROS5);
+
+ data_remaining = asn1_tag_remaining(&data);
+
+ if (data_remaining < 3) {
+ data.has_error = True;
+ } else {
+ asn1_read(&data, tok_id, 2);
+ data_remaining -= 2;
+ *ticket = data_blob_talloc(mem_ctx, NULL, data_remaining);
+ asn1_read(&data, ticket->data, ticket->length);
+ }
+
+ asn1_end_tag(&data);
+
+ ret = !data.has_error;
+
+ asn1_free(&data);
+
+ return ret;
+}
+
+