73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/*
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nsjail - config parsing
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-----------------------------------------
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Copyright 2017 Google Inc. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#include "common.h"
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#include "config.h"
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#include "log.h"
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#include "util.h"
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#if !defined(NSJAIL_WITH_PROTOBUFC)
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bool configParse(struct nsjconf_t * nsjconf UNUSED, const char *file UNUSED)
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{
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LOG_W("nsjail was not compiled with the protobuf-c library");
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return false;
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}
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#else /* !defined(NSJAIL_WITH_PROTOBUFC) */
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#include "config.pb-c.h"
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static bool configParseInternal(struct nsjconf_t *nsjconf, Nsjail__NsJailConfig * njc)
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{
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if (njc->has_chroot) {
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nsjconf->chroot = utilStrDupLen((char *)njc->chroot.data, njc->chroot.len);
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}
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return true;
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}
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bool configParse(struct nsjconf_t * nsjconf, const char *file)
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{
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uint8_t msg[1024 * 1024];
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ssize_t rsz = utilReadFromFile(file, msg, sizeof(msg));
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if (rsz < 0) {
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return false;
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}
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if (rsz == 0) {
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return false;
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}
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if (rsz == sizeof(msg)) {
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LOG_W("Config file '%s' too big (>= %zu bytes)", file, sizeof(msg));
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return false;
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}
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Nsjail__NsJailConfig *njc = nsjail__ns_jail_config__unpack(NULL, rsz, msg);
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if (njc == NULL) {
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LOG_E("Couldn't parse the config file");
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return false;
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}
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bool ret = configParseInternal(nsjconf, njc);
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nsjail__ns_jail_config__free_unpacked(njc, NULL);
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return ret;
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}
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#endif /* !defined(NSJAIL_WITH_PROTOBUFC) */
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