1 files changed, 58 insertions, 14 deletions

diff --git a/src/basic/uid-range.h b/src/basic/uid-range.h
index 461a511..1f687b2 100644
--- a/src/basic/uid-range.h
+++ b/src/basic/uid-range.h
@@ -6,29 +6,73 @@
 
 #include "macro.h"
 
-typedef struct UidRangeEntry {
+typedef struct UIDRangeEntry {
         uid_t start, nr;
-} UidRangeEntry;
+} UIDRangeEntry;
 
-typedef struct UidRange {
-        UidRangeEntry *entries;
+typedef struct UIDRange {
+        UIDRangeEntry *entries;
         size_t n_entries;
-} UidRange;
+} UIDRange;
 
-UidRange *uid_range_free(UidRange *range);
-DEFINE_TRIVIAL_CLEANUP_FUNC(UidRange*, uid_range_free);
+UIDRange *uid_range_free(UIDRange *range);
+DEFINE_TRIVIAL_CLEANUP_FUNC(UIDRange*, uid_range_free);
 
-int uid_range_add_internal(UidRange **range, uid_t start, uid_t nr, bool coalesce);
-static inline int uid_range_add(UidRange **range, uid_t start, uid_t nr) {
+int uid_range_add_internal(UIDRange **range, uid_t start, uid_t nr, bool coalesce);
+static inline int uid_range_add(UIDRange **range, uid_t start, uid_t nr) {
         return uid_range_add_internal(range, start, nr, true);
 }
-int uid_range_add_str(UidRange **range, const char *s);
+int uid_range_add_str(UIDRange **range, const char *s);
 
-int uid_range_next_lower(const UidRange *range, uid_t *uid);
+int uid_range_next_lower(const UIDRange *range, uid_t *uid);
 
-bool uid_range_covers(const UidRange *range, uid_t start, uid_t nr);
-static inline bool uid_range_contains(const UidRange *range, uid_t uid) {
+bool uid_range_covers(const UIDRange *range, uid_t start, uid_t nr);
+static inline bool uid_range_contains(const UIDRange *range, uid_t uid) {
         return uid_range_covers(range, uid, 1);
 }
 
-int uid_range_load_userns(UidRange **ret, const char *path);
+int uid_map_read_one(FILE *f, uid_t *ret_base, uid_t *ret_shift, uid_t *ret_range);
+
+static inline size_t uid_range_entries(const UIDRange *range) {
+        return range ? range->n_entries : 0;
+}
+
+static inline unsigned uid_range_size(const UIDRange *range) {
+        if (!range)
+                return 0;
+
+        unsigned n = 0;
+
+        FOREACH_ARRAY(e, range->entries, range->n_entries)
+                n += e->nr;
+
+        return n;
+}
+
+static inline bool uid_range_is_empty(const UIDRange *range) {
+
+        if (!range)
+                return true;
+
+        FOREACH_ARRAY(e, range->entries, range->n_entries)
+                if (e->nr > 0)
+                        return false;
+
+        return true;
+}
+
+bool uid_range_equal(const UIDRange *a, const UIDRange *b);
+
+typedef enum UIDRangeUsernsMode {
+        UID_RANGE_USERNS_INSIDE,
+        UID_RANGE_USERNS_OUTSIDE,
+        GID_RANGE_USERNS_INSIDE,
+        GID_RANGE_USERNS_OUTSIDE,
+        _UID_RANGE_USERNS_MODE_MAX,
+        _UID_RANGE_USERNS_MODE_INVALID = -EINVAL,
+} UIDRangeUsernsMode;
+
+int uid_range_load_userns(const char *path, UIDRangeUsernsMode mode, UIDRange **ret);
+int uid_range_load_userns_by_fd(int userns_fd, UIDRangeUsernsMode mode, UIDRange **ret);
+
+bool uid_range_overlaps(const UIDRange *range, uid_t start, uid_t nr);