xt_ECHO: handle fragments

Since everything is just echoed back verbatim without modification,
supporting fragments seems easy.

diff --git a/extensions/xt_ECHO.c b/extensions/xt_ECHO.c
index f6d2c6988d94503d2b6c754ba4e4bc670ee7a9c4..2f1a5ebb75e20c0cbd275995b6ef732bbf529f79 100644 (file)
--- a/extensions/xt_ECHO.c
+++ b/extensions/xt_ECHO.c
@@ -156,8 +156,8 @@ echo_tg4(struct sk_buff *oldskb, const struct xt_action_param *par)
        newip->version  = oldip->version;
        newip->ihl      = sizeof(*newip) / 4;
        newip->tos      = oldip->tos;
-       newip->id       = 0;
-       newip->frag_off = htons(IP_DF);
+       newip->id       = oldip->id;
+       newip->frag_off = 0;
        newip->protocol = oldip->protocol;
        newip->check    = 0;
        newip->saddr    = oldip->daddr;