X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fflow.c;fp=lib%2Fflow.c;h=57eddba26776eadc4aca0a0f9e280937c9823c04;hb=4fe3445afbbcda01e426d26cdcc1c7daa5d9f823;hp=3085848dc37686396f3e964985ab3e494c1156bd;hpb=72e8bf28bb38e8816435c64859fb350215b6a9e6;p=openvswitch

diff --git a/lib/flow.c b/lib/flow.c
index 3085848d..57eddba2 100644
--- a/lib/flow.c
+++ b/lib/flow.c
@@ -479,6 +479,50 @@ flow_to_string(const struct flow *flow)
     return ds_cstr(&ds);
 }
 
+const char *
+flow_tun_flag_to_string(uint32_t flags)
+{
+    switch (flags) {
+    case FLOW_TNL_F_DONT_FRAGMENT:
+        return "df";
+    case FLOW_TNL_F_CSUM:
+        return "csum";
+    case FLOW_TNL_F_KEY:
+        return "key";
+    default:
+        return NULL;
+    }
+}
+
+void
+format_flags(struct ds *ds, const char *(*bit_to_string)(uint32_t),
+             uint32_t flags, char del)
+{
+    uint32_t bad = 0;
+
+    if (!flags) {
+        return;
+    }
+    while (flags) {
+        uint32_t bit = rightmost_1bit(flags);
+        const char *s;
+
+        s = bit_to_string(bit);
+        if (s) {
+            ds_put_format(ds, "%s%c", s, del);
+        } else {
+            bad |= bit;
+        }
+
+        flags &= ~bit;
+    }
+
+    if (bad) {
+        ds_put_format(ds, "0x%"PRIx32"%c", bad, del);
+    }
+    ds_chomp(ds, del);
+}
+
 void
 flow_format(struct ds *ds, const struct flow *flow)
 {