ping On Wed, 2013-08-28 at 11:18 +0200, Svante Signell wrote: > Hi, > > attached is a test program for SCM_CREDS support for GNU/Linux, > GNU/kFreeBSD and GNU/Hurd. With the soon to be submitted patches Hurd > works as given below. LD_PRELOAD is used for the Hurd tests. > > Options: > none: send an integer as data > -z: send a zero credentials byte as data (used by dbus) > -n: don't create explicit credentials structure > -nz, -zn: combine the two options above > > 1) Sent credentials are correct: > ./scm_cred_recv & > ./scm_cred_send > Linux: OK, only sent ids > kFreeBSD: OK, sent ids + groups > Hurd: OK, only sent ids > > ./scm_cred_recv -z& > ./scm_cred_send -z > Linux: OK, same as above > kFreeBSD: OK, same as above > Hurd: OK, sent IDs + groups > > ./scm_cred_recv & > ./scm_cred_send -n > Linux: OK, same as above > kFreeBSD: nOK; ERROR: bad cmsg header cmhp == NULL, data: OK > Hurd: same as kFreeBSD > > ./scm_cred_recv -z& > ./scm_cred_send -nz > Linux: OK, same as above > kFreeBSD: nOK; ERROR: bad cmsg header cmhp == NULL, data: OK > Hurd: OK, sent IDs + groups > > 2) When wrong credentials are sent the behaviour is different: > > Linux: > no flag: ERROR [EPERM Operation not permitted] sendmsg > -z: ERROR [EPERM Operation not permitted] sendmsg > -n: sent credentials are not honoured, received ones are created > -zn: sent credentials are not honoured, received ones are created > > kFreeBSD: > no flag: sent credentials are not honoured, received ones are created > -n: ERROR: bad cmsg header cmhp == NULL > -z: sent credentials are not honoured, received ones are created > -zn: ERROR: bad cmsg header cmhp == NULL > > Hurd: > no flag: ERROR [EPERM Operation not permitted] sendmsg > -z: sent credentials are not honoured, received ones are created > -n: ERROR: bad cmsg header cmhp == NULL > -zn: sent credentials are not honoured, received ones are created > > Is the implemented behaviour OK, anything to add/change/remove?
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