2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
13 * Afs_xsetgroups (syscall)
17 #include <afsconfig.h>
18 #include "afs/param.h"
23 /* We should be doing something better anyway */
24 #ifdef AFS_DARWIN80_ENV
26 setpag(proc, cred, pagvalue, newpag, change_parent)
31 afs_uint32 change_parent;
36 #include "afs/sysincludes.h"
37 #include "afsincludes.h"
38 #include "afs/afs_stats.h" /* statistics */
41 afs_getgroups(struct ucred *cred, int ngroups, gid_t * gidset);
44 afs_setgroups(struct proc *proc, struct ucred **cred, int ngroups,
45 gid_t * gidset, int change_parent);
48 Afs_xsetgroups(p, args, retval)
58 cr = crdup(p->p_cred->pc_ucred);
61 AFS_STATCNT(afs_xsetgroups);
64 code = afs_InitReq(&treq, cr);
68 return setgroups(p, args, retval); /* afs has shut down */
70 code = setgroups(p, args, retval);
71 /* Note that if there is a pag already in the new groups we don't
72 * overwrite it with the old pag.
75 cr = crdup(p->p_cred->pc_ucred);
78 if (PagInCred(cr) == NOPAG) {
79 if (((treq.uid >> 24) & 0xff) == 'A') {
81 /* we've already done a setpag, so now we redo it */
82 AddPag(p, treq.uid, &cr);
91 gid_t gidset[NGROUPS];
96 ngroups = afs_getgroups(*cred, NGROUPS, gidset);
97 if (afs_get_pag_from_groups(gidset[1], gidset[2]) == NOPAG) {
98 /* We will have to shift grouplist to make room for pag */
99 if (ngroups + 2 > NGROUPS) {
102 for (j = ngroups - 1; j >= 1; j--) {
103 gidset[j + 2] = gidset[j];
107 *newpag = (pagvalue == -1 ? genpag() : pagvalue);
108 afs_get_groups_from_pag(*newpag, &gidset[1], &gidset[2]);
109 code = afs_setgroups(proc, cred, ngroups, gidset, change_parent);
115 afs_getgroups(struct ucred *cred, int ngroups, gid_t * gidset)
117 int ngrps, savengrps;
120 AFS_STATCNT(afs_getgroups);
121 savengrps = ngrps = MIN(ngroups, cred->cr_ngroups);
122 gp = cred->cr_groups;
131 afs_setgroups(struct proc *proc, struct ucred **cred, int ngroups,
132 gid_t * gidset, int change_parent)
137 struct ucred *oldcr, *cr;
139 AFS_STATCNT(afs_setgroups);
141 * The real setgroups() call does this, so maybe we should too.
144 if (ngroups > NGROUPS)
147 cr->cr_ngroups = ngroups;
153 pcred_writelock(proc->p_pptr);
154 oldcr = proc->p_pptr->p_cred->pc_ucred;
155 proc->p_pptr->p_cred->pc_ucred = cr;
156 pcred_unlock(proc->p_pptr);
160 pcred_writelock(proc);
161 oldcr = proc->p_cred->pc_ucred;
162 proc->p_cred->pc_ucred = cr;