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| author | Florian Weimer <fweimer@redhat.com> | 2020-10-14 10:54:39 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2020-11-10 16:59:42 +0100 |
| commit | 05c025abca109daf7ddbc9e4562815a4274920ef (patch) | |
| tree | 5cee62bae50b814c717454ddd7aeb2b17d30b5d1 | |
| parent | f688bcd83de17986deed911434b20a964410ad2e (diff) | |
| download | glibc-05c025abca109daf7ddbc9e4562815a4274920ef.tar.gz glibc-05c025abca109daf7ddbc9e4562815a4274920ef.tar.xz glibc-05c025abca109daf7ddbc9e4562815a4274920ef.zip | |
support: Provide a way to clear the RA bit in DNS server responses
(cherry picked from commit 08443b19965f48862b02c2fd7b33a39d66daf2ff)
| -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 e343c4b516..9878a040a3 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 c46de32ff4..31a5c1c3e7 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; |