networkd: support route scopes

For now we only support the hardcoded values RT_SCOPE_{UNIVERSE,LOCAL,HOST},
and not numerical values or values from /etc/iproute2/rt_scopes.

This addresses https://bugs.freedesktop.org/show_bug.cgi?id=88508.

1 files changed, 41 insertions, 0 deletions

diff --git a/src/network/networkd-route.c b/src/network/networkd-route.c
index 590dd49df9..c2d1ffca25 100644
--- a/src/network/networkd-route.c
+++ b/src/network/networkd-route.c
@@ -427,3 +427,44 @@ int config_parse_route_priority(const char *unit,
 
         return 0;
 }
+
+int config_parse_route_scope(const char *unit,
+                             const char *filename,
+                             unsigned line,
+                             const char *section,
+                             unsigned section_line,
+                             const char *lvalue,
+                             int ltype,
+                             const char *rvalue,
+                             void *data,
+                             void *userdata) {
+        Network *network = userdata;
+        _cleanup_route_free_ Route *n = NULL;
+        int r;
+
+        assert(filename);
+        assert(section);
+        assert(lvalue);
+        assert(rvalue);
+        assert(data);
+
+        r = route_new_static(network, section_line, &n);
+        if (r < 0)
+                return r;
+
+        if (streq(rvalue, "host"))
+                n->scope = RT_SCOPE_HOST;
+        else if (streq(rvalue, "link"))
+                n->scope = RT_SCOPE_LINK;
+        else if (streq(rvalue, "global"))
+                n->scope = RT_SCOPE_UNIVERSE;
+        else {
+                log_syntax(unit, LOG_ERR, filename, line, EINVAL,
+                           "Unknown route scope: %s", rvalue);
+                return 0;
+        }
+
+        n = NULL;
+
+        return 0;
+}