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silently ignore additional keytag options

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(cherry picked from commit 36158e6c96e982768bd33d4090cbe563718534f2)
(cherry picked from commit ccca4986b3a14188becb173c4473d9eac1587f66)
This commit is contained in:
Mark Andrews 2018-12-10 08:41:26 +11:00 committed by Evan Hunt
parent 665c4ae0cf
commit d5243a5231
1 changed files with 6 additions and 0 deletions
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6
bin/named/client.c
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@ -2120,6 +2120,12 @@ process_keytag(ns_client_t *client, isc_buffer_t *buf, size_t optlen) {
return (DNS_R_OPTERR);
}
/* Silently drop additional keytag options. */
if (client->keytag != NULL) {
isc_buffer_forward(buf, (unsigned int)optlen);
return (ISC_R_SUCCESS);
}
client->keytag = isc_mem_get(client->mctx, optlen);
if (client->keytag != NULL) {
client->keytag_len = (uint16_t)optlen;