Adding upstream version 256.upstream/256

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/src/nsresourced/userns-registry.h b/src/nsresourced/userns-registry.h
new file mode 100644
index 0000000..9e66a6f
--- /dev/null
+++ b/src/nsresourced/userns-registry.h
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#define USER_NAMESPACE_CGROUPS_DELEGATE_MAX 16
+
+typedef struct UserNamespaceInfo {
+        uid_t owner;
+        char *name;
+        uint64_t userns_inode;
+        uid_t start;
+        uint32_t size;
+        uid_t target;
+        uint64_t *cgroups;
+        size_t n_cgroups;
+} UserNamespaceInfo;
+
+UserNamespaceInfo* userns_info_new(void);
+UserNamespaceInfo* userns_info_free(UserNamespaceInfo *userns);
+
+DEFINE_TRIVIAL_CLEANUP_FUNC(UserNamespaceInfo*, userns_info_free);
+
+bool userns_info_has_cgroup(UserNamespaceInfo *userns, uint64_t cgroup_id);
+int userns_info_add_cgroup(UserNamespaceInfo *userns, uint64_t cgroup_id);
+int userns_info_remove_cgroups(UserNamespaceInfo *userns);
+
+bool userns_name_is_valid(const char *name);
+
+int userns_registry_open_fd(void);
+int userns_registry_lock(int dir_fd);
+
+int userns_registry_load_by_start_uid(int dir_fd, uid_t start, UserNamespaceInfo **ret);
+int userns_registry_load_by_userns_inode(int dir_fd, uint64_t userns, UserNamespaceInfo **ret);
+int userns_registry_load_by_name(int dir_fd, const char *name, UserNamespaceInfo **ret);
+
+int userns_registry_store(int dir_fd, UserNamespaceInfo *info);
+int userns_registry_remove(int dir_fd, UserNamespaceInfo *info);
+
+int userns_registry_inode_exists(int dir_fd, uint64_t inode);
+int userns_registry_name_exists(int dir_fd, const char *name);
+int userns_registry_uid_exists(int dir_fd, uid_t start);
+
+int userns_registry_per_uid(int dir_fd, uid_t owner);