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c3cf06f1a3
All identifiers, regardless of use, that start with two underscores are reserved. This means they can't be used in header guards. The style that this project is now to use the full name of the file in capital letters followed by 'H'. For example, for a file called "uart_example.h", the header guard is UART_EXAMPLE_H. The exceptions are files that are imported from other projects: - CryptoCell driver - dt-bindings folders - zlib headers Change-Id: I50561bf6c88b491ec440d0c8385c74650f3c106e Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
/*
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* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef EXT_H
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#define EXT_H
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#include <openssl/x509v3.h>
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#include "key.h"
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/* Extension types supported */
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enum ext_type_e {
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EXT_TYPE_NVCOUNTER,
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EXT_TYPE_PKEY,
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EXT_TYPE_HASH
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};
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/* NV-Counter types */
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enum nvctr_type_e {
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NVCTR_TYPE_TFW,
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NVCTR_TYPE_NTFW
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};
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/*
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* This structure contains the relevant information to create the extensions
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* to be included in the certificates. This extensions will be used to
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* establish the chain of trust.
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*/
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typedef struct ext_s {
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const char *oid; /* OID of the extension */
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const char *sn; /* Short name */
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const char *ln; /* Long description */
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const char *opt; /* Command line option to specify data */
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const char *help_msg; /* Help message */
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const char *arg; /* Argument passed from command line */
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int asn1_type; /* OpenSSL ASN1 type of the extension data.
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* Supported types are:
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* - V_ASN1_INTEGER
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* - V_ASN1_OCTET_STRING
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*/
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int type; /* See ext_type_e */
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/* Extension attributes (depends on extension type) */
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union {
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int nvctr_type; /* See nvctr_type_e */
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int key; /* Index into array of registered public keys */
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} attr;
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int alias; /* In case OpenSSL provides an standard
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* extension of the same type, add the new
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* extension as an alias of this one
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*/
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X509V3_EXT_METHOD method; /* This field may be used to define a custom
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* function to print the contents of the
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* extension */
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int optional; /* This field may be used optionally to exclude an image */
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} ext_t;
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enum {
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EXT_NON_CRIT = 0,
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EXT_CRIT = !EXT_NON_CRIT,
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};
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/* Exported API */
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int ext_init(void);
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ext_t *ext_get_by_opt(const char *opt);
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X509_EXTENSION *ext_new_hash(int nid, int crit, const EVP_MD *md,
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unsigned char *buf, size_t len);
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X509_EXTENSION *ext_new_nvcounter(int nid, int crit, int value);
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X509_EXTENSION *ext_new_key(int nid, int crit, EVP_PKEY *k);
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/* Macro to register the extensions used in the CoT */
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#define REGISTER_EXTENSIONS(_ext) \
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ext_t *extensions = &_ext[0]; \
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const unsigned int num_extensions = sizeof(_ext)/sizeof(_ext[0])
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/* Exported variables */
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extern ext_t *extensions;
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extern const unsigned int num_extensions;
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#endif /* EXT_H */
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