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Diffstat (limited to 'libqpol/include/qpol/fs_use_query.h')
| -rw-r--r-- | libqpol/include/qpol/fs_use_query.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/libqpol/include/qpol/fs_use_query.h b/libqpol/include/qpol/fs_use_query.h new file mode 100644 index 0000000..c45ae44 --- /dev/null +++ b/libqpol/include/qpol/fs_use_query.h @@ -0,0 +1,115 @@ +/** + * @file + * Defines the public interface for searching and iterating over fs_use statements. + * + * @author Kevin Carr kcarr@tresys.com + * @author Jeremy A. Mowery jmowery@tresys.com + * @author Jason Tang jtang@tresys.com + * + * Copyright (C) 2006-2007 Tresys Technology, LLC + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef QPOL_FS_USE_QUERY_H +#define QPOL_FS_USE_QUERY_H + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <stddef.h> +#include <stdint.h> +#include <qpol/iterator.h> +#include <qpol/policy.h> +#include <qpol/context_query.h> + + typedef struct qpol_fs_use qpol_fs_use_t; + +/** + * Get a fs_use statement by file system name. + * @param policy The policy from which to get the fs_use statement. + * @param name The name of the file system. + * @param ocon Pointer in which to store the fs_use statement. + * The caller should not free this pointer. + * @return 0 on success and < 0 on failure; if the call fails, + * errno will be set and *ocon will be NULL. + */ + extern int qpol_policy_get_fs_use_by_name(const qpol_policy_t * policy, const char *name, const qpol_fs_use_t ** ocon); + +/** + * Get an iterator for the fs_use statements in a policy. + * @param policy The policy from which to create the iterator. + * @param iter Iterator over items of type qpol_fs_use_t returned. + * The caller is responsible for calling qpol_iterator_destroy + * to free memory used by this iterator. + * It is important to note that this iterator is only valid as long + * as the policy is unmodified. + * @return 0 on success and < 0 on failure; if the call fails, + * errno will be set and *iter will be NULL. + */ + extern int qpol_policy_get_fs_use_iter(const qpol_policy_t * policy, qpol_iterator_t ** iter); + +/** + * Get the file system name from a fs_use statement. + * @param policy The policy associated with the fs_use statement. + * @param ocon The fs_use statement from which to get the name. + * @param name Pointer to the string in which to store the name. + * The caller should not free this string. + * @return 0 on success and < 0 on failure; if the call fails, + * errno will be set and *name will be NULL. + */ + extern int qpol_fs_use_get_name(const qpol_policy_t * policy, const qpol_fs_use_t * ocon, const char **name); + +/* The defines QPOL_FS_USE_XATTR through QPOL_FS_USE_NONE are + * copied from sepol/policydb/services.h. + * QPOL_FS_USE_PSID is an extension to support v12 policies. */ +#define QPOL_FS_USE_XATTR 1U +#define QPOL_FS_USE_TRANS 2U +#define QPOL_FS_USE_TASK 3U +#define QPOL_FS_USE_GENFS 4U +#define QPOL_FS_USE_NONE 5U +#define QPOL_FS_USE_PSID 6U + +/** + * Get the labeling behavior from a fs_use statement. + * @param policy The policy associated with the fs_use statement. + * @param ocon The fs_use statement from which to get the behavior. + * @param behavior Pointer to be set to the value of the labeling behavior. + * The value will be one of the QPOL_FS_USE_* values defined above. + * @return 0 on success and < 0 on failure; if the call fails, + * errno will be set and *behavior will be 0. + */ + extern int qpol_fs_use_get_behavior(const qpol_policy_t * policy, const qpol_fs_use_t * ocon, uint32_t * behavior); + +/** + * Get the context from a fs_use statement. + * @param policy The policy associated with the fs_use statement. + * @param ocon The fs_use statement from which to get the context. + * @param context Pointer in which to store the context. + * The caller should not free this pointer. + * @return 0 on success and < 0 on failure; if the call fails, + * errno will be set and *context will be NULL. It is considered an + * error to call this function if behavior is QPOL_FS_USE_PSID. + */ + extern int qpol_fs_use_get_context(const qpol_policy_t * policy, const qpol_fs_use_t * ocon, + const qpol_context_t ** context); + +#ifdef __cplusplus +} +#endif + +#endif /* QPOL_FS_USE_QUERY_H */ |