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openvswitch/lib/ofp-version-opt.c
Ben Pfaff 37923ac734 ovs-ofctl: Reject impossible protocols configurations at startup.
The -O and -F options interact, so that it's possible to select only
flow formats that are not supported on a given OpenFlow version.  It seems
best to report these problems up front rather than failing in a more
mysterious way later.

Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Simon Horman <horms@verge.net.au>
2012-11-29 08:04:56 -08:00

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953 B
C

#include <config.h>
#include "ofp-util.h"
#include "ofp-version-opt.h"
#include "vlog.h"
#include "dynamic-string.h"
VLOG_DEFINE_THIS_MODULE(ofp_version);
static uint32_t allowed_versions = 0;
uint32_t
get_allowed_ofp_versions(void)
{
return allowed_versions ? allowed_versions : OFPUTIL_DEFAULT_VERSIONS;
}
void
set_allowed_ofp_versions(const char *string)
{
allowed_versions = ofputil_versions_from_string(string);
}
void
mask_allowed_ofp_versions(uint32_t bitmap)
{
allowed_versions &= bitmap;
}
void
ofp_version_usage(void)
{
struct ds msg = DS_EMPTY_INITIALIZER;
ofputil_format_version_bitmap_names(&msg, OFPUTIL_DEFAULT_VERSIONS);
printf(
"\nOpen Flow Version options:\n"
" -V, --version display version information\n"
" -O, --protocols set allowed Open Flow versions\n"
" (default: %s)\n",
ds_cstr(&msg));
ds_destroy(&msg);
}