From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 21 Aug 2025 11:36:12 +0000 (+0200)
Subject: xattr: add helper that detect special purpose xattrs
X-Git-Tag: v259-rc1~324^2~3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b2fa6d0945aa2c84c67bbc1ca6afee0992650dc9;p=thirdparty%2Fsystemd.git

xattr: add helper that detect special purpose xattrs
---

diff --git a/src/basic/xattr-util.c b/src/basic/xattr-util.c
index 1bde725d1a7..cf53418ceb1 100644
--- a/src/basic/xattr-util.c
+++ b/src/basic/xattr-util.c
@@ -477,3 +477,14 @@ int fd_setcrtime(int fd, usec_t usec) {
                               "user.crtime_usec", (const char*) &le, sizeof(le),
                               /* xattr_flags = */ 0);
 }
+
+bool xattr_is_acl(const char *name) {
+        return STR_IN_SET(
+                        ASSERT_PTR(name),
+                        "system.posix_acl_access",
+                        "system.posix_acl_default");
+}
+
+bool xattr_is_selinux(const char *name) {
+        return streq(ASSERT_PTR(name), "security.selinux");
+}
diff --git a/src/basic/xattr-util.h b/src/basic/xattr-util.h
index cf68933bfe3..f38ecf491dc 100644
--- a/src/basic/xattr-util.h
+++ b/src/basic/xattr-util.h
@@ -54,3 +54,6 @@ int getcrtime_at(int fd, const char *path, int at_flags, usec_t *ret);
 static inline int fd_getcrtime(int fd, usec_t *ret) {
         return getcrtime_at(fd, NULL, 0, ret);
 }
+
+bool xattr_is_acl(const char *name);
+bool xattr_is_selinux(const char *name);