| commit 08443b19965f48862b02c2fd7b33a39d66daf2ff |
| Author: Florian Weimer <fweimer@redhat.com> |
| Date: Wed Oct 14 10:54:39 2020 +0200 |
| |
| support: Provide a way to clear the RA bit in DNS server responses |
| |
| diff --git a/support/resolv_test.c b/support/resolv_test.c |
| index 8cca4e6cf723de28..9323f1d55b0be8f1 100644 |
| |
| |
| @@ -181,7 +181,9 @@ resolv_response_init (struct resolv_response_builder *b, |
| b->buffer[2] |= b->query_buffer[2] & 0x01; /* Copy the RD bit. */ |
| if (flags.tc) |
| b->buffer[2] |= 0x02; |
| - b->buffer[3] = 0x80 | flags.rcode; /* Always set RA. */ |
| + b->buffer[3] = flags.rcode; |
| + if (!flags.clear_ra) |
| + b->buffer[3] |= 0x80; |
| if (flags.ad) |
| b->buffer[3] |= 0x20; |
| |
| diff --git a/support/resolv_test.h b/support/resolv_test.h |
| index ff5571dace92c936..825abb9ff2897a43 100644 |
| |
| |
| @@ -148,6 +148,10 @@ struct resolv_response_flags |
| /* If true, the AD (authenticated data) flag will be set. */ |
| bool ad; |
| |
| + /* If true, do not set the RA (recursion available) flag in the |
| + response. */ |
| + bool clear_ra; |
| + |
| /* Initial section count values. Can be used to artificially |
| increase the counts, for malformed packet testing.*/ |
| unsigned short qdcount; |