lib/ofp-version-opt.c

   1 #include <config.h>
   2 #include "dynamic-string.h"
   3 #include "ofp-util.h"
   4 #include "ofp-version-opt.h"
   5 #include "ovs-thread.h"
   6
   7 static uint32_t allowed_versions = 0;
   8
   9 uint32_t
  10 get_allowed_ofp_versions(void)
  11 {
  12     return allowed_versions ? allowed_versions : OFPUTIL_DEFAULT_VERSIONS;
  13 }
  14
  15 void
  16 set_allowed_ofp_versions(const char *string)
  17 {
  18     assert_single_threaded();
  19     allowed_versions = ofputil_versions_from_string(string);
  20 }
  21
  22 void
  23 mask_allowed_ofp_versions(uint32_t bitmap)
  24 {
  25     assert_single_threaded();
  26     allowed_versions &= bitmap;
  27 }
  28
  29 void
  30 ofp_version_usage(void)
  31 {
  32     struct ds msg = DS_EMPTY_INITIALIZER;
  33
  34     ofputil_format_version_bitmap_names(&msg, OFPUTIL_DEFAULT_VERSIONS);
  35     printf(
  36         "\nOpenFlow version options:\n"
  37         "  -V, --version           display version information\n"
  38         "  -O, --protocols         set allowed OpenFlow versions\n"
  39         "                          (default: %s)\n",
  40         ds_cstr(&msg));
  41     ds_destroy(&msg);
  42 }