In NetBSD, Solaris, xprt->xp_p2 pointed directly to the credentials,
in FreeBSD xprt->xp_verf.oa_base was a pointer to a struct cmessage,
which is defined as follow:
struct cmessage {
struct cmsghdr cmsg;
struct cmsgcred cmcred;
};
The credentials were submitted the right way and xprt->xp_p2 pointed to them.
But cb_verf.oa_flavor was still empty. There was an assignment missing
in svc_recv() in svc_vc.c:
msg->rm_call.cb_verf.oa_flavor = AUTH_UNIX;
Also
+ if (addr.ss_family == AF_LOCAL) {
+ xprt->xp_raddr = *(struct sockaddr_in *)xprt->xp_rtaddr.buf;
+ xprt->xp_addrlen = sizeof (struct sockaddr_in);
+ }
was missing. But the first seems not to be needed:
I guess in rpc.yppasswdd there was a typo:
- transp>xp_verf.oa_flavor != AUTH_UNIX) {
+ rqstp->rq_cred.oa_flavor != AUTH_UNIX) {
This little fix does fix the breakage in rpc.yppasswdd :-)
+ if (msg.msg_controllen == 0 ||
+ (msg.msg_flags & MSG_CTRUNC) != 0)
+ return (-1);
We cannot set the cb_verf.oa_length in svc_recv() of svc_vc.c,
the credentials get overwritten then, and that's bad.
Submitted by: mbr
33d91c2dd3