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add test support for dropping edns messages (-T dropedns); ignoring edns in queries (-T noedns); variable max UDP (-T maxudp=value)

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This commit is contained in:
Mark Andrews
2012-10-16 10:23:08 +11:00
parent 71dfdcbfae
commit 4b17401c9c
5 changed files with 28 additions and 4 deletions
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9
lib/isc/unix/socket.c
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@@ -1765,7 +1765,7 @@ doio_recv(isc__socket_t *sock, isc_socketevent_t *dev) {
}
/*
* Simulate a firewall blocking UDP responses bigger than
* 512 bytes.
* 'maxudp' bytes.
*/
if (sock->manager->maxudp != 0 && cc > sock->manager->maxudp)
return (DOIO_SOFT);
@@ -1859,7 +1859,12 @@ doio_send(isc__socket_t *sock, isc_socketevent_t *dev) {
build_msghdr_send(sock, dev, &msghdr, iov, &write_count);
resend:
cc = sendmsg(sock->fd, &msghdr, 0);
if (sock->type == isc_sockettype_udp &&
sock->manager->maxudp != 0 &&
write_count > (size_t)sock->manager->maxudp)
cc = write_count;
else
cc = sendmsg(sock->fd, &msghdr, 0);
send_errno = errno;
/*