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In my "build everything" tree, a change to the types in qapi-schema.json triggers a recompile of about 4800 out of 5100 objects. The previous commit split up qmp-commands.h, qmp-event.h, qmp-visit.h, qapi-types.h. Each of these headers still includes all its shards. Reduce compile time by including just the shards we actually need. To illustrate the benefits: adding a type to qapi/migration.json now recompiles some 2300 instead of 4800 objects. The next commit will improve it further. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180211093607.27351-24-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> [eblake: rebase to master] Signed-off-by: Eric Blake <eblake@redhat.com>
168 lines
4.8 KiB
C
168 lines
4.8 KiB
C
/*
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* QEMU Crypto hmac algorithms
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*
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* Copyright (c) 2016 HUAWEI TECHNOLOGIES CO., LTD.
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* (at your option) any later version. See the COPYING file in the
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* top-level directory.
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*
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*/
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#ifndef QCRYPTO_HMAC_H
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#define QCRYPTO_HMAC_H
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#include "qapi/qapi-types-crypto.h"
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typedef struct QCryptoHmac QCryptoHmac;
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struct QCryptoHmac {
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QCryptoHashAlgorithm alg;
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void *opaque;
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void *driver;
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};
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/**
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* qcrypto_hmac_supports:
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* @alg: the hmac algorithm
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*
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* Determine if @alg hmac algorithm is supported by
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* the current configured build
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*
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* Returns:
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* true if the algorithm is supported, false otherwise
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*/
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bool qcrypto_hmac_supports(QCryptoHashAlgorithm alg);
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/**
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* qcrypto_hmac_new:
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* @alg: the hmac algorithm
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* @key: the key bytes
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* @nkey: the length of @key
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* @errp: pointer to a NULL-initialized error object
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*
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* Creates a new hmac object with the algorithm @alg
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*
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* The @key parameter provides the bytes representing
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* the secret key to use. The @nkey parameter specifies
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* the length of @key in bytes
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*
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* Note: must use qcrypto_hmac_free() to release the
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* returned hmac object when no longer required
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*
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* Returns:
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* a new hmac object, or NULL on error
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*/
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QCryptoHmac *qcrypto_hmac_new(QCryptoHashAlgorithm alg,
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const uint8_t *key, size_t nkey,
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Error **errp);
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/**
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* qcrypto_hmac_free:
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* @hmac: the hmac object
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*
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* Release the memory associated with @hmac that was
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* previously allocated by qcrypto_hmac_new()
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*/
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void qcrypto_hmac_free(QCryptoHmac *hmac);
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/**
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* qcrypto_hmac_bytesv:
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* @hmac: the hmac object
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* @iov: the array of memory regions to hmac
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* @niov: the length of @iov
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* @result: pointer to hold output hmac
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* @resultlen: pointer to hold length of @result
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* @errp: pointer to a NULL-initialized error object
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*
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* Computes the hmac across all the memory regions
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* present in @iov. The @result pointer will be
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* filled with raw bytes representing the computed
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* hmac, which will have length @resultlen. The
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* memory pointer in @result must be released
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* with a call to g_free() when no longer required.
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*
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* Returns:
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* 0 on success, -1 on error
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*/
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int qcrypto_hmac_bytesv(QCryptoHmac *hmac,
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const struct iovec *iov,
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size_t niov,
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uint8_t **result,
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size_t *resultlen,
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Error **errp);
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/**
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* qcrypto_hmac_bytes:
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* @hmac: the hmac object
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* @buf: the memory region to hmac
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* @len: the length of @buf
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* @result: pointer to hold output hmac
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* @resultlen: pointer to hold length of @result
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* @errp: pointer to a NULL-initialized error object
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*
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* Computes the hmac across all the memory region
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* @buf of length @len. The @result pointer will be
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* filled with raw bytes representing the computed
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* hmac, which will have length @resultlen. The
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* memory pointer in @result must be released
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* with a call to g_free() when no longer required.
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*
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* Returns:
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* 0 on success, -1 on error
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*/
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int qcrypto_hmac_bytes(QCryptoHmac *hmac,
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const char *buf,
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size_t len,
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uint8_t **result,
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size_t *resultlen,
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Error **errp);
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/**
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* qcrypto_hmac_digestv:
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* @hmac: the hmac object
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* @iov: the array of memory regions to hmac
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* @niov: the length of @iov
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* @digest: pointer to hold output hmac
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* @errp: pointer to a NULL-initialized error object
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*
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* Computes the hmac across all the memory regions
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* present in @iov. The @digest pointer will be
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* filled with the printable hex digest of the computed
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* hmac, which will be terminated by '\0'. The
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* memory pointer in @digest must be released
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* with a call to g_free() when no longer required.
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*
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* Returns:
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* 0 on success, -1 on error
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*/
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int qcrypto_hmac_digestv(QCryptoHmac *hmac,
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const struct iovec *iov,
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size_t niov,
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char **digest,
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Error **errp);
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/**
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* qcrypto_hmac_digest:
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* @hmac: the hmac object
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* @buf: the memory region to hmac
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* @len: the length of @buf
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* @digest: pointer to hold output hmac
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* @errp: pointer to a NULL-initialized error object
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*
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* Computes the hmac across all the memory region
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* @buf of length @len. The @digest pointer will be
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* filled with the printable hex digest of the computed
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* hmac, which will be terminated by '\0'. The
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* memory pointer in @digest must be released
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* with a call to g_free() when no longer required.
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*
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* Returns: 0 on success, -1 on error
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*/
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int qcrypto_hmac_digest(QCryptoHmac *hmac,
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const char *buf,
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size_t len,
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char **digest,
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Error **errp);
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#endif
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