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| author | Florian Weimer <fweimer@redhat.com> | 2020-10-14 10:54:39 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2020-10-14 10:54:39 +0200 |
| commit | 08443b19965f48862b02c2fd7b33a39d66daf2ff (patch) | |
| tree | 31bd0a4a7823bd08227e2e2f1e10f81aabfa4d00 | |
| parent | 873e239a4c3d8ec235c27439c1bdc5bbf8aa1818 (diff) | |
| download | glibc-08443b19965f48862b02c2fd7b33a39d66daf2ff.zip glibc-08443b19965f48862b02c2fd7b33a39d66daf2ff.tar.gz glibc-08443b19965f48862b02c2fd7b33a39d66daf2ff.tar.bz2 | |
support: Provide a way to clear the RA bit in DNS server responses
| -rw-r--r-- | support/resolv_test.c | 4 | ||||
| -rw-r--r-- | support/resolv_test.h | 4 |
2 files changed, 7 insertions, 1 deletions
diff --git a/support/resolv_test.c b/support/resolv_test.c index e343c4b..9878a04 100644 --- a/support/resolv_test.c +++ b/support/resolv_test.c @@ -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 c46de32..31a5c1c 100644 --- a/support/resolv_test.h +++ b/support/resolv_test.h @@ -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; |