rsvpte/rsvpte_if.c

   1 /*
   2  *  Copyright (C) James R. Leu 2003
   3  *  jleu@mindspring.com
   4  *
   5  *  This software is covered under the LGPL, for more
   6  *  info check out http://www.gnu.org/copyleft/lgpl.html
   7  */
   8
   9 #include "rsvpte_struct.h"
  10 #include "rsvpte_if.h"
  11
  12 #include "mpls_assert.h"
  13 #include "mpls_mm_impl.h"
  14 #include "mpls_socket_impl.h"
  15 #include "mpls_timer_impl.h"
  16 #include "mpls_ifmgr_impl.h"
  17 #include "mpls_trace_impl.h"
  18
  19 uint32_t _rsvpte_if_next_index = 1;
  20
  21 rsvpte_if *rsvpte_if_create()
  22 {
  23   rsvpte_if *i = (rsvpte_if *) mpls_malloc(sizeof(rsvpte_if));
  24
  25   if (i) {
  26     memset(i, 0, sizeof(rsvpte_if));
  27     MPLS_REFCNT_INIT(i, 0);
  28     MPLS_LIST_ELEM_INIT(i, _global);
  29     i->label_space = -1;
  30     i->index = _rsvpte_if_get_next_index();
  31     i->oper_state = MPLS_OPER_DOWN;
  32     i->admin_state = MPLS_ADMIN_DISABLE;
  33   }
  34   return i;
  35 }
  36
  37 void rsvpte_if_delete(rsvpte_if * i)
  38 {
  39   LDP_PRINT(g->user_data,"if delete\n");
  40   MPLS_REFCNT_ASSERT(i, 0);
  41   mpls_free(i);
  42 }
  43
  44 mpls_return_enum rsvpte_if_startup(rsvpte_global * g, rsvpte_if * i)
  45 {
  46   LDP_ENTER(g->user_data, "rsvpte_if_startup");
  47
  48   MPLS_ASSERT(i != NULL);
  49
  50   if (mpls_ifmgr_get_address(g->ifmgr_handle, i->handle,
  51       &i->local_source_address, NULL, NULL) == MPLS_FAILURE) {
  52     goto rsvpte_if_startup_delay;
  53   }
  54
  55   i->oper_state = MPLS_OPER_UP;
  56   i->admin_state = MPLS_ADMIN_ENABLE;
  57
  58   LDP_EXIT(g->user_data, "rsvpte_if_startup");
  59
  60   return MPLS_SUCCESS;
  61
  62 rsvpte_if_startup_delay:
  63
  64   /*
  65    * when a interface update comes in, it will search the global
  66    * list of interfaces, and start up the interface then
  67    */
  68   i->oper_state = MPLS_OPER_DOWN;
  69
  70   LDP_EXIT(g->user_data, "rsvpte_if_startup-delayed");
  71
  72   return MPLS_SUCCESS;
  73 }
  74
  75 mpls_return_enum rsvpte_if_shutdown(rsvpte_global * g, rsvpte_if * i)
  76 {
  77   MPLS_ASSERT(i != NULL);
  78
  79   LDP_ENTER(g->user_data, "rsvpte_if_shutdown");
  80
  81   i->oper_state = MPLS_OPER_DOWN;
  82   i->admin_state = MPLS_ADMIN_DISABLE;
  83
  84   LDP_EXIT(g->user_data, "rsvpte_if_shutdown");
  85
  86   return MPLS_SUCCESS;
  87 }
  88
  89 uint32_t _rsvpte_if_get_next_index()
  90 {
  91   uint32_t retval = _rsvpte_if_next_index;
  92
  93   _rsvpte_if_next_index++;
  94   if (retval > _rsvpte_if_next_index) {
  95     _rsvpte_if_next_index = 1;
  96   }
  97   return retval;
  98 }
  99
 100 mpls_bool rsvpte_if_is_active(rsvpte_if * i)
 101 {
 102   MPLS_ASSERT(i);
 103   if (i->oper_state == MPLS_OPER_UP)
 104     return MPLS_BOOL_TRUE;
 105
 106   return MPLS_BOOL_FALSE;
 107 }