core: add support to specify errno in SystemCallFilter=

This makes each system call in SystemCallFilter= blacklist optionally
takes errno name or number after a colon. The errno takes precedence
over the one given by SystemCallErrorNumber=.

C.f. #7173.
Closes #7169.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/core/execute.h b/src/core/execute.h
index 4d41990b36..23abdd4516 100644
--- a/src/core/execute.h
+++ b/src/core/execute.h
@@ -242,7 +242,7 @@ struct ExecContext {
 
         unsigned long restrict_namespaces; /* The CLONE_NEWxyz flags permitted to the unit's processes */
 
-        Set *syscall_filter;
+        Hashmap *syscall_filter;
         Set *syscall_archs;
         int syscall_errno;
         bool syscall_whitelist:1;