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| author | Lennart Poettering <lennart@poettering.net> | 2015-12-09 19:08:45 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2015-12-10 11:35:52 +0100 |
| commit | 9eae2bf3189c07e30a752e38b2ad3856450f1d06 (patch) | |
| tree | 2a11db410d01095204b3d1f21512928c9f0779e1 /src | |
| parent | 547973dea7abd6c124ff6c79fe2bbe322a7314ae (diff) | |
resolved: don't accept doing queries for invalid RR types
Diffstat (limited to 'src')
| -rw-r--r-- | src/resolve/resolved-dns-transaction.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/resolve/resolved-dns-transaction.c b/src/resolve/resolved-dns-transaction.c index 00ecd3d11e..1dcd2c78c0 100644 --- a/src/resolve/resolved-dns-transaction.c +++ b/src/resolve/resolved-dns-transaction.c @@ -106,6 +106,14 @@ int dns_transaction_new(DnsTransaction **ret, DnsScope *s, DnsResourceKey *key) assert(s); assert(key); + /* Don't allow looking up invalid or pseudo RRs */ + if (IN_SET(key->type, DNS_TYPE_OPT, 0, DNS_TYPE_TSIG, DNS_TYPE_TKEY)) + return -EINVAL; + + /* We only support the IN class */ + if (key->class != DNS_CLASS_IN) + return -EOPNOTSUPP; + r = hashmap_ensure_allocated(&s->manager->dns_transactions, NULL); if (r < 0) return r; |