diff options
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/uipc_usrreq.c | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/sys/kern/uipc_usrreq.c b/sys/kern/uipc_usrreq.c index 3b668a2..3c68f05 100644 --- a/sys/kern/uipc_usrreq.c +++ b/sys/kern/uipc_usrreq.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * From: @(#)uipc_usrreq.c 8.3 (Berkeley) 1/4/94 - * $Id: uipc_usrreq.c,v 1.19 1997/02/22 09:39:29 peter Exp $ + * $Id: uipc_usrreq.c,v 1.20 1997/02/24 20:30:58 wollman Exp $ */ #include <sys/param.h> @@ -697,6 +697,10 @@ unp_externalize(rights) return (0); } +#ifndef MIN +#define MIN(a,b) (((a)<(b))?(a):(b)) +#endif + static int unp_internalize(control, p) struct mbuf *control; @@ -707,11 +711,29 @@ unp_internalize(control, p) register struct file **rp; register struct file *fp; register int i, fd; + register struct cmsgcred *cmcred; int oldfds; - if (cm->cmsg_type != SCM_RIGHTS || cm->cmsg_level != SOL_SOCKET || - cm->cmsg_len != control->m_len) + if ((cm->cmsg_type != SCM_RIGHTS && cm->cmsg_type != SCM_CREDS) || + cm->cmsg_level != SOL_SOCKET || cm->cmsg_len != control->m_len) return (EINVAL); + + /* + * Fill in credential information. + */ + if (cm->cmsg_type == SCM_CREDS) { + cmcred = (struct cmsgcred *)(cm + 1); + cmcred->cmcred_pid = p->p_pid; + cmcred->cmcred_uid = p->p_cred->p_ruid; + cmcred->cmcred_gid = p->p_cred->p_rgid; + cmcred->cmcred_euid = p->p_ucred->cr_uid; + cmcred->cmcred_ngroups = MIN(p->p_ucred->cr_ngroups, + CMGROUP_MAX); + for (i = 0; i < cmcred->cmcred_ngroups; i++) + cmcred->cmcred_groups[i] = p->p_ucred->cr_groups[i]; + return(0); + } + oldfds = (cm->cmsg_len - sizeof (*cm)) / sizeof (int); /* * check that all the FDs passed in refer to legal OPEN files |
