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3ab06d77fb
pvattest is a tool to attest an IBM Secure Execution guest. In a trusted environment, one can create a request using `pvattest create`. To get a measurement of an untrusted IBM Secure Execution guest call 'pvattest perform'. Again in a trusted environment, call 'pvattest verify' to verify that the measurement is the expected one. The tool runs on s390 and x86. It has the same requirements like libpv and therefore requires openssl v1.1.1+, glib2.56+, and libcurl. Additionally, to measure, the linux kernel must provide the Ultravisor userspace interface `uvdevice` at /dev/uv and must be executed on an IBM Secure Execution guest on hardware with Ultravisor attestation support, like IBM z16 or later. Signed-off-by: Steffen Eiden <seiden@linux.ibm.com> Reviewed-by: Marc Hartmayer <mhartmay@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/*
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* Common functions for pvattest.
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*
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* Copyright IBM Corp. 2022
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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/* Must be included before any other header */
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#include "config.h"
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#include <stdio.h>
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#include <sys/stat.h>
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#include "libpv/glib-helper.h"
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#include "types.h"
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#include "common.h"
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gboolean wrapped_g_file_set_content(const char *filename, GBytes *bytes, mode_t mode,
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GError **error)
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{
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const void *data;
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size_t size;
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gboolean rc;
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data = g_bytes_get_data(bytes, &size);
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rc = g_file_set_contents(filename, data, (ssize_t)size, error);
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if (rc && mode != 0666)
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chmod(filename, mode);
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return rc;
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}
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GBytes *secure_gbytes_concat(GBytes *lh, GBytes *rh)
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{
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g_autoptr(GByteArray) lha = NULL;
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if (!lh && !rh)
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return NULL;
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if (!lh)
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return g_bytes_ref(rh);
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if (!rh)
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return g_bytes_ref(lh);
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lha = g_bytes_unref_to_array(g_bytes_ref(lh));
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g_byte_array_append(lha, g_bytes_get_data(rh, NULL), (guint)g_bytes_get_size(rh));
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return pv_sec_gbytes_new(lha->data, lha->len);
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}
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