From 81b967279f6e23474b1e7a0ea9b4ecf9405f87bb Mon Sep 17 00:00:00 2001
From: Masahiro Matsuya <mmatsuya@redhat.com>
Date: Wed, 31 Mar 2021 11:44:24 +0900
Subject: [PATCH] tmpfiles: use a entry in hashmap as ItemArray in
 read_config_file()

[zjs: squash commits and use size_t as appropriate.

Bug seems to have been introduced in 811a15877825da9e53f9a2a8603da34589af6bbb.
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1944468.]

(cherry picked from commit bec890e3cd6dac249cb12ce9430fdb78b6cf546b)

Resolves: #1944468
---
 src/tmpfiles/tmpfiles.c | 47 +++++++++++++++++++++++------------------
 1 file changed, 26 insertions(+), 21 deletions(-)

diff --git a/src/tmpfiles/tmpfiles.c b/src/tmpfiles/tmpfiles.c
index 927de35f32..1aeeed0d2e 100644
--- a/src/tmpfiles/tmpfiles.c
+++ b/src/tmpfiles/tmpfiles.c
@@ -2646,7 +2646,7 @@ static int read_config_file(char **config_dirs, const char *fn, bool ignore_enoe
         char line[LINE_MAX];
         Iterator iterator;
         unsigned v = 0;
-        Item *i;
+        ItemArray *ia;
         int r = 0;
 
         assert(fn);
@@ -2692,32 +2692,37 @@ static int read_config_file(char **config_dirs, const char *fn, bool ignore_enoe
         }
 
         /* we have to determine age parameter for each entry of type X */
-        ORDERED_HASHMAP_FOREACH(i, globs, iterator) {
-                Iterator iter;
-                Item *j, *candidate_item = NULL;
+        ORDERED_HASHMAP_FOREACH(ia, globs, iterator)
+                for (size_t ni = 0; ni < ia->count; ni++) {
+                        Iterator iter;
+                        ItemArray *ja;
+                        Item *i = ia->items + ni, *candidate_item = NULL;
 
-                if (i->type != IGNORE_DIRECTORY_PATH)
-                        continue;
-
-                ORDERED_HASHMAP_FOREACH(j, items, iter) {
-                        if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA))
+                        if (i->type != IGNORE_DIRECTORY_PATH)
                                 continue;
 
-                        if (path_equal(j->path, i->path)) {
-                                candidate_item = j;
-                                break;
-                        }
+                        ORDERED_HASHMAP_FOREACH(ja, items, iter)
+                                for (size_t nj = 0; nj < ja->count; nj++) {
+                                        Item *j = ja->items + nj;
 
-                        if ((!candidate_item && path_startswith(i->path, j->path)) ||
-                            (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0)))
-                                candidate_item = j;
-                }
+                                        if (!IN_SET(j->type, CREATE_DIRECTORY, TRUNCATE_DIRECTORY, CREATE_SUBVOLUME, CREATE_SUBVOLUME_INHERIT_QUOTA, CREATE_SUBVOLUME_NEW_QUOTA))
+                                                continue;
 
-                if (candidate_item && candidate_item->age_set) {
-                        i->age = candidate_item->age;
-                        i->age_set = true;
+                                        if (path_equal(j->path, i->path)) {
+                                                candidate_item = j;
+                                                break;
+                                        }
+
+                                        if ((!candidate_item && path_startswith(i->path, j->path)) ||
+                                            (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0)))
+                                                candidate_item = j;
+                                }
+
+                        if (candidate_item && candidate_item->age_set) {
+                                i->age = candidate_item->age;
+                                i->age_set = true;
+                        }
                 }
-        }
 
         if (ferror(f)) {
                 log_error_errno(errno, "Failed to read from file %s: %m", fn);