22  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25 
  26 #include <sys/param.h>
  27 #include <sys/types.h>
  28 #include <sys/kmem.h>
  29 #include <c2/audit.h>
  30 #include <c2/audit_kernel.h>
  31 
  32 
  33 /* process audit data (pad) cache */
  34 kmem_cache_t *au_pad_cache;
  35 
  36 /*
  37  * increment audit path reference count
  38  */
  39 void
  40 au_pathhold(struct audit_path *app)
  41 {
  42         atomic_add_32(&app->audp_ref, 1);
  43 }
  44 
  45 /*
  46  * decrement audit path reference count
  47  */
  48 void
  49 au_pathrele(struct audit_path *app)
  50 {
  51         if (atomic_add_32_nv(&app->audp_ref, -1) > 0)
  52                 return;
  53         kmem_free(app, app->audp_size);
  54 }
  55 
  56 /*
  57  * allocate a new auditpath
  58  *      newsect = increment sections count,
  59  *      charincr = change in strings storage
  60  */
  61 
  62 struct audit_path *
  63 au_pathdup(const struct audit_path *oldapp, int newsect, int charincr)
  64 {
  65         struct audit_path       *newapp;
  66         int     i, alloc_size, oldlen;
  67         char    *oldcp, *newcp;
  68 
  69         newsect = (newsect != 0);
  70         oldcp = oldapp->audp_sect[0];
  71         oldlen = (oldapp->audp_sect[oldapp->audp_cnt] - oldcp);

  22  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25 
  26 #include <sys/param.h>
  27 #include <sys/types.h>
  28 #include <sys/kmem.h>
  29 #include <c2/audit.h>
  30 #include <c2/audit_kernel.h>
  31 
  32 
  33 /* process audit data (pad) cache */
  34 kmem_cache_t *au_pad_cache;
  35 
  36 /*
  37  * increment audit path reference count
  38  */
  39 void
  40 au_pathhold(struct audit_path *app)
  41 {
  42         atomic_inc_32(&app->audp_ref);
  43 }
  44 
  45 /*
  46  * decrement audit path reference count
  47  */
  48 void
  49 au_pathrele(struct audit_path *app)
  50 {
  51         if (atomic_dec_32_nv(&app->audp_ref) > 0)
  52                 return;
  53         kmem_free(app, app->audp_size);
  54 }
  55 
  56 /*
  57  * allocate a new auditpath
  58  *      newsect = increment sections count,
  59  *      charincr = change in strings storage
  60  */
  61 
  62 struct audit_path *
  63 au_pathdup(const struct audit_path *oldapp, int newsect, int charincr)
  64 {
  65         struct audit_path       *newapp;
  66         int     i, alloc_size, oldlen;
  67         char    *oldcp, *newcp;
  68 
  69         newsect = (newsect != 0);
  70         oldcp = oldapp->audp_sect[0];
  71         oldlen = (oldapp->audp_sect[oldapp->audp_cnt] - oldcp);