const afs_ucred_t *
afs_osi_proc2cred(afs_proc_t * pr)
{
afs_ucred_t *rv = NULL;
static afs_ucred_t cr;
if (pr == NULL) {
return NULL;
}
if ((pr->state == TASK_RUNNING) || (pr->state == TASK_INTERRUPTIBLE)
|| (pr->state == TASK_UNINTERRUPTIBLE)
|| (pr->state == TASK_STOPPED)) {
/* This is dangerous. If anyone ever crfree's the cred that's
* returned from here, we'll go boom, because it's statically
* allocated. */
cr.cr_ref = 1;
afs_set_cr_uid(&cr, task_uid(pr));
cr.cr_ngroups = pr->ngroups;
memcpy(cr.cr_groups, pr->groups, NGROUPS * sizeof(gid_t));
rv = &cr;
}
return rv;
}
const afs_ucred_t *
afs_osi_proc2cred(afs_proc_t * pr)
{
afs_ucred_t *rv = NULL;
static afs_ucred_t cr;
if (pr == NULL) {
return NULL;
}
if ((pr->state == TASK_RUNNING) || (pr->state == TASK_INTERRUPTIBLE)
|| (pr->state == TASK_UNINTERRUPTIBLE)
|| (pr->state == TASK_STOPPED)) {
/* This is dangerous. If anyone ever crfree's the cred that's
* returned from here, we'll go boom, because it's statically
* allocated. */
atomic_set(&cr.cr_ref, 1);
afs_set_cr_uid(&cr, task_uid(pr));
#if defined(AFS_LINUX26_ENV)
#if defined(STRUCT_TASK_STRUCT_HAS_CRED)
get_group_info(pr->cred->group_info);
set_cr_group_info(&cr, pr->cred->group_info);
#else
get_group_info(pr->group_info);
set_cr_group_info(&cr, pr->group_info);
#endif
#else
cr.cr_ngroups = pr->ngroups;
memcpy(cr.cr_groups, pr->groups, NGROUPS * sizeof(gid_t));
#endif
rv = &cr;
}
return rv;
}
/* Copy one credential structure to another, being careful about references */
static inline void
afs_copy_creds(cred_t *to_cred, const cred_t *from_cred) {
afs_set_cr_uid(to_cred, afs_cr_uid(from_cred));
afs_set_cr_gid(to_cred, afs_cr_gid(from_cred));
afs_set_cr_ruid(to_cred, afs_cr_ruid(from_cred));
afs_set_cr_rgid(to_cred, afs_cr_rgid(from_cred));
get_group_info(afs_cr_group_info(from_cred));
afs_set_cr_group_info(to_cred, afs_cr_group_info(from_cred));
}
/* Return a duplicate of the cred. */
cred_t *
crdup(cred_t * cr)
{
cred_t *tmp = crget();
#if defined(STRUCT_TASK_STRUCT_HAS_CRED)
afs_copy_creds(tmp, cr);
#else
afs_set_cr_uid(tmp, afs_cr_uid(cr));
afs_set_cr_ruid(tmp, afs_cr_ruid(cr));
afs_set_cr_gid(tmp, afs_cr_gid(cr));
afs_set_cr_rgid(tmp, afs_cr_rgid(cr));
get_group_info(afs_cr_group_info(cr));
afs_set_cr_group_info(tmp, afs_cr_group_info(cr));
#endif
return tmp;
}
cred_t *
crref(void)
{
#if defined(STRUCT_TASK_STRUCT_HAS_CRED)
return (cred_t *)get_current_cred();
#else
cred_t *cr = crget();
afs_set_cr_uid(cr, current_fsuid());
afs_set_cr_ruid(cr, current_uid());
afs_set_cr_gid(cr, current_fsgid());
afs_set_cr_rgid(cr, current_gid());
task_lock(current);
get_group_info(current_group_info());
afs_set_cr_group_info(cr, current_group_info());
task_unlock(current);
return cr;
#endif
}
