static int
splat_cred_test1(struct file *file, void *arg)
{
char str[GROUP_STR_SIZE];
uid_t uid, ruid, suid;
gid_t gid, rgid, sgid, *groups;
int ngroups, i, count = 0;
uid = crgetuid(CRED());
ruid = crgetruid(CRED());
suid = crgetsuid(CRED());
gid = crgetgid(CRED());
rgid = crgetrgid(CRED());
sgid = crgetsgid(CRED());
crhold(CRED());
ngroups = crgetngroups(CRED());
groups = crgetgroups(CRED());
memset(str, 0, GROUP_STR_SIZE);
for (i = 0; i < ngroups; i++) {
count += sprintf(str + count, "%d ", groups[i]);
if (count > (GROUP_STR_SIZE - GROUP_STR_REDZONE)) {
splat_vprint(file, SPLAT_CRED_TEST1_NAME,
"Failed too many group entries for temp "
"buffer: %d, %s\n", ngroups, str);
return -ENOSPC;
}
}
crfree(CRED());
splat_vprint(file, SPLAT_CRED_TEST1_NAME,
"uid: %d ruid: %d suid: %d "
"gid: %d rgid: %d sgid: %d\n",
uid, ruid, suid, gid, rgid, sgid);
splat_vprint(file, SPLAT_CRED_TEST1_NAME,
"ngroups: %d groups: %s\n", ngroups, str);
if (uid || ruid || suid || gid || rgid || sgid) {
splat_vprint(file, SPLAT_CRED_TEST1_NAME,
"Failed expected all uids+gids to be %d\n", 0);
return -EIDRM;
}
if (ngroups > NGROUPS_MAX) {
splat_vprint(file, SPLAT_CRED_TEST1_NAME,
"Failed ngroups must not exceed NGROUPS_MAX: "
"%d > %d\n", ngroups, NGROUPS_MAX);
return -EIDRM;
}
splat_vprint(file, SPLAT_CRED_TEST1_NAME,
"Success sane CRED(): %d\n", 0);
return 0;
} /* splat_cred_test1() */
/*
*
* Cachefs used to know too much about how creds looked; since it's
* committed to persistent storage, we can't change the layout so
* it now has a "dl_cred_t" which (unsurprisingly) looks exactly like
* an old credential.
*
* The dst argument needs to point to:
* struct dl_cred_t;
* <buffer space> buffer for groups
*
* The source is a proper kernel cred_t.
*
*/
static size_t
copy_cred(cred_t *src, dl_cred_t *dst)
{
int n;
const gid_t *sgrp = crgetgroups(src);
n = MIN(NGROUPS_MAX_DEFAULT, crgetngroups(src));
/* copy the fixed fields */
dst->cr_uid = crgetuid(src);
dst->cr_ruid = crgetruid(src);
dst->cr_suid = crgetsuid(src);
dst->cr_gid = crgetgid(src);
dst->cr_rgid = crgetrgid(src);
dst->cr_sgid = crgetsgid(src);
dst->cr_groups[0] = sgrp[0];
dst->cr_ngroups = n;
bcopy(sgrp, (void *)(dst + 1), (n - 1) * sizeof (gid_t));
return (sizeof (dl_cred_t) + (n - 1) * sizeof (gid_t));
}
