src/afs/FBSD/osi_gcpags.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   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
   8  */
   9
  10 #include <afsconfig.h>
  11 #include "afs/param.h"
  12
  13
  14 #include "afs/sysincludes.h"    /* Standard vendor system headers */
  15 #include "afsincludes.h"        /* Afs-based standard headers */
  16 #include "afs/afs_stats.h"      /* afs statistics */
  17
  18 #if AFS_GCPAGS
  19
  20 /* afs_osi_TraverseProcTable() - Walk through the systems process
  21  * table, calling afs_GCPAGs_perproc_func() for each process.
  22  */
  23
  24 void
  25 afs_osi_TraverseProcTable(void)
  26 {
  27     afs_proc_t *p;
  28     LIST_FOREACH(p, &allproc, p_list) {
  29         if (p->p_stat == SIDL)
  30             continue;
  31         if (p->p_stat == SZOMB)
  32             continue;
  33         if (p->p_flag & P_SYSTEM)
  34             continue;
  35         afs_GCPAGs_perproc_func(p);
  36     }
  37 }
  38
  39 /* return a pointer (sometimes a static copy ) to the cred for a
  40  * given afs_proc_t.
  41  * subsequent calls may overwrite the previously returned value.
  42  */
  43 const afs_ucred_t *
  44 afs_osi_proc2cred(afs_proc_t * pr)
  45 {
  46         afs_ucred_t *rv = NULL;
  47         static afs_ucred_t cr;
  48
  49         if (pr == NULL) {
  50                 return NULL;
  51         }
  52
  53         if ((pr->p_stat == SSLEEP) || (pr->p_stat == SRUN)
  54                 || (pr->p_stat == SSTOP)) {
  55                 pcred_readlock(pr);
  56                 cr.cr_ref = 1;
  57                 afs_set_cr_uid(&cr, afs_cr_uid(pr->p_cred->pc_ucred));
  58                 cr.cr_ngroups = pr->p_cred->pc_ucred->cr_ngroups;
  59                 memcpy(cr.cr_groups, pr->p_cred->pc_ucred->cr_groups,
  60                 NGROUPS * sizeof(gid_t));
  61                 pcred_unlock(pr);
  62                 rv = &cr;
  63         }
  64
  65         return rv;
  66 }
  67
  68 #endif /* AFS_GCPAGS */