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2844de6f40
Commit id 'fb2bd208' essentially copied the qemuGetSecretString
creating an libxlGetSecretString. Rather than have multiple copies
of the same code, create src/secret/secret_util.{c,h} files and
place the common function in there.
Modify the the build in order to build the module as a library
which is then pulled in by both the qemu and libxl drivers for
usage from both qemu_command.c and libxl_conf.c
121 lines
3.9 KiB
C
121 lines
3.9 KiB
C
/*
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* secret_util.c: secret related utility functions
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*
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* Copyright (C) 2016 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*/
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#include <config.h>
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#include "secret_util.h"
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#include "viralloc.h"
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#include "virerror.h"
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#include "virlog.h"
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#include "virobject.h"
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#include "viruuid.h"
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#include "base64.h"
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#include "datatypes.h"
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#define VIR_FROM_THIS VIR_FROM_SECRET
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VIR_LOG_INIT("secret.secret_util");
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/* virSecretGetSecretString:
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* @conn: Pointer to the connection driver to make secret driver call
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* @scheme: Unique enough string for error message to help determine cause
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* @encoded: Whether the returned secret needs to be base64 encoded
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* @authdef: Pointer to the disk storage authentication
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* @secretUsageType: Type of secret usage for authdef lookup
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*
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* Lookup the secret for the authdef usage type and return it either as
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* raw text or encoded based on the caller's need.
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*
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* Returns a pointer to memory that needs to be cleared and free'd after
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* usage or NULL on error.
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*/
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char *
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virSecretGetSecretString(virConnectPtr conn,
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const char *scheme,
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bool encoded,
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virStorageAuthDefPtr authdef,
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virSecretUsageType secretUsageType)
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{
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size_t secret_size;
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virSecretPtr sec = NULL;
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char *secret = NULL;
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char uuidStr[VIR_UUID_STRING_BUFLEN];
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/* look up secret */
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switch (authdef->secretType) {
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case VIR_STORAGE_SECRET_TYPE_UUID:
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sec = virSecretLookupByUUID(conn, authdef->secret.uuid);
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virUUIDFormat(authdef->secret.uuid, uuidStr);
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break;
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case VIR_STORAGE_SECRET_TYPE_USAGE:
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sec = virSecretLookupByUsage(conn, secretUsageType,
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authdef->secret.usage);
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break;
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}
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if (!sec) {
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if (authdef->secretType == VIR_STORAGE_SECRET_TYPE_UUID) {
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virReportError(VIR_ERR_NO_SECRET,
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_("%s no secret matches uuid '%s'"),
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scheme, uuidStr);
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} else {
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virReportError(VIR_ERR_NO_SECRET,
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_("%s no secret matches usage value '%s'"),
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scheme, authdef->secret.usage);
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}
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goto cleanup;
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}
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secret = (char *)conn->secretDriver->secretGetValue(sec, &secret_size, 0,
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VIR_SECRET_GET_VALUE_INTERNAL_CALL);
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if (!secret) {
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if (authdef->secretType == VIR_STORAGE_SECRET_TYPE_UUID) {
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("could not get value of the secret for "
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"username '%s' using uuid '%s'"),
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authdef->username, uuidStr);
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} else {
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("could not get value of the secret for "
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"username '%s' using usage value '%s'"),
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authdef->username, authdef->secret.usage);
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}
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goto cleanup;
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}
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if (encoded) {
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char *base64 = NULL;
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base64_encode_alloc(secret, secret_size, &base64);
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VIR_FREE(secret);
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if (!base64) {
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virReportOOMError();
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goto cleanup;
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}
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secret = base64;
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}
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cleanup:
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virObjectUnref(sec);
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return secret;
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}
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