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/*
* Copyright (c) 2016 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <vnet/mfib/mfib_types.h>
#include <vnet/ip/ip.h>
/**
* String names for each flag
*/
static const char *mfib_flag_names[] = MFIB_ENTRY_NAMES_SHORT;
static const char *mfib_flag_names_long[] = MFIB_ENTRY_NAMES_LONG;
static const char *mfib_itf_flag_long_names[] = MFIB_ITF_NAMES_LONG;
static const char *mfib_itf_flag_names[] = MFIB_ITF_NAMES_SHORT;
int
mfib_prefix_is_cover (const mfib_prefix_t *p1,
const mfib_prefix_t *p2)
{
if (!ip46_address_is_equal(&p1->fp_src_addr, &p2->fp_src_addr))
return (0);
switch (p1->fp_proto)
{
case FIB_PROTOCOL_IP4:
return (ip4_destination_matches_route(&ip4_main,
&p1->fp_grp_addr.ip4,
&p2->fp_grp_addr.ip4,
p1->fp_len));
case FIB_PROTOCOL_IP6:
return (ip6_destination_matches_route(&ip6_main,
&p1->fp_grp_addr.ip6,
&p2->fp_grp_addr.ip6,
p1->fp_len));
case FIB_PROTOCOL_MPLS:
break;
}
return (0);
}
int
mfib_prefix_is_host (const mfib_prefix_t *pfx)
{
switch (pfx->fp_proto)
{
case FIB_PROTOCOL_IP4:
return (64 == pfx->fp_len);
case FIB_PROTOCOL_IP6:
return (256 == pfx->fp_len);
case FIB_PROTOCOL_MPLS:
ASSERT(0);
break;
}
return (0);
}
fib_forward_chain_type_t
mfib_forw_chain_type_from_dpo_proto (dpo_proto_t proto)
{
switch (proto)
{
case DPO_PROTO_IP4:
return (FIB_FORW_CHAIN_TYPE_MCAST_IP4);
case DPO_PROTO_IP6:
return (FIB_FORW_CHAIN_TYPE_MCAST_IP6);
case DPO_PROTO_MPLS:
case DPO_PROTO_ETHERNET:
case DPO_PROTO_NSH:
case DPO_PROTO_BIER:
break;
}
ASSERT(0);
return (FIB_FORW_CHAIN_TYPE_MCAST_IP4);
}
fib_forward_chain_type_t
mfib_forw_chain_type_from_fib_proto (fib_protocol_t proto)
{
switch (proto)
{
case FIB_PROTOCOL_IP4:
return (FIB_FORW_CHAIN_TYPE_MCAST_IP4);
case FIB_PROTOCOL_IP6:
return (FIB_FORW_CHAIN_TYPE_MCAST_IP6);
case FIB_PROTOCOL_MPLS:
break;
}
ASSERT(0);
return (FIB_FORW_CHAIN_TYPE_MCAST_IP4);
}
u8 *
format_mfib_prefix (u8 * s, va_list * args)
{
mfib_prefix_t *fp = va_arg (*args, mfib_prefix_t *);
/*
* protocol specific so it prints ::/0 correctly.
*/
switch (fp->fp_proto)
{
case FIB_PROTOCOL_IP6:
{
ip6_address_t p6 = fp->fp_grp_addr.ip6;
u32 len = (fp->fp_len > 128 ? 128 : fp->fp_len);
ip6_address_mask(&p6, &(ip6_main.fib_masks[len]));
if (ip6_address_is_zero(&fp->fp_src_addr.ip6))
{
s = format(s, "(*, ");
}
else
{
s = format (s, "(%U, ", format_ip6_address, &fp->fp_src_addr.ip6);
}
s = format (s, "%U", format_ip6_address, &p6);
s = format (s, "/%d)", len);
break;
}
case FIB_PROTOCOL_IP4:
{
ip4_address_t p4 = fp->fp_grp_addr.ip4;
u32 len = (fp->fp_len > 32 ? 32 : fp->fp_len);
p4.as_u32 &= ip4_main.fib_masks[len];
if (0 == fp->fp_src_addr.ip4.as_u32)
{
s = format(s, "(*, ");
}
else
{
s = format (s, "(%U, ", format_ip4_address, &fp->fp_src_addr.ip4);
}
s = format (s, "%U", format_ip4_address, &p4);
s = format (s, "/%d)", len);
break;
}
case FIB_PROTOCOL_MPLS:
break;
}
return (s);
}
u8 *
format_mfib_entry_flags (u8 * s, va_list * args)
{
mfib_entry_attribute_t attr;
mfib_entry_flags_t flags;
flags = va_arg (*args, mfib_entry_flags_t);
if (MFIB_ENTRY_FLAG_NONE != flags) {
s = format(s, " flags:");
FOR_EACH_MFIB_ATTRIBUTE(attr) {
if ((1<<attr) & flags) {
s = format (s, "%s,", mfib_flag_names_long[attr]);
}
}
}
return (s);
}
u8 *
format_mfib_itf_flags (u8 * s, va_list * args)
{
mfib_itf_attribute_t attr;
mfib_itf_flags_t flags;
flags = va_arg (*args, mfib_itf_flags_t);
FOR_EACH_MFIB_ITF_ATTRIBUTE(attr) {
if ((1<<attr) & flags) {
s = format (s, "%s,", mfib_itf_flag_long_names[attr]);
}
}
return (s);
}
uword
unformat_mfib_itf_flags (unformat_input_t * input,
va_list * args)
{
mfib_itf_flags_t old, *iflags = va_arg (*args, mfib_itf_flags_t*);
mfib_itf_attribute_t attr;
old = *iflags;
FOR_EACH_MFIB_ITF_ATTRIBUTE(attr) {
if (unformat (input, mfib_itf_flag_long_names[attr]))
*iflags |= (1 << attr);
}
FOR_EACH_MFIB_ITF_ATTRIBUTE(attr) {
if (unformat (input, mfib_itf_flag_names[attr]))
*iflags |= (1 << attr);
}
return (old == *iflags ? 0 : 1);
}
uword
unformat_mfib_entry_flags (unformat_input_t * input,
va_list * args)
{
mfib_entry_flags_t old, *eflags = va_arg (*args, mfib_entry_flags_t*);
mfib_entry_attribute_t attr;
old = *eflags;
FOR_EACH_MFIB_ATTRIBUTE(attr) {
if (unformat (input, mfib_flag_names_long[attr]))
*eflags |= (1 << attr);
}
FOR_EACH_MFIB_ATTRIBUTE(attr) {
if (unformat (input, mfib_flag_names[attr]))
*eflags |= (1 << attr);
}
return (old == *eflags ? 0 : 1);
}
clib_error_t *
mfib_show_route_flags (vlib_main_t * vm,
unformat_input_t * main_input,
vlib_cli_command_t * cmd)
{
mfib_entry_attribute_t attr;
FOR_EACH_MFIB_ATTRIBUTE(attr) {
vlib_cli_output(vm, "%s = %s",
mfib_flag_names[attr],
mfib_flag_names_long[attr]);
}
return (NULL);
}
/*?
* This command displays the set of supported flags applicable to an MFIB route
*/
VLIB_CLI_COMMAND (mfib_route_flags_command, static) =
{
.path = "show mfib route flags",
.short_help = "Flags applicable to an MFIB route",
.function = mfib_show_route_flags,
.is_mp_safe = 1,
};
clib_error_t *
mfib_show_itf_flags (vlib_main_t * vm,
unformat_input_t * main_input,
vlib_cli_command_t * cmd)
{
mfib_itf_attribute_t attr;
FOR_EACH_MFIB_ITF_ATTRIBUTE(attr) {
vlib_cli_output(vm, "%s = %s",
mfib_itf_flag_names[attr],
mfib_itf_flag_long_names[attr]);
}
return (NULL);
}
/*?
* This command displays the set of supported flags applicable to an MFIB interface
*/
VLIB_CLI_COMMAND (mfib_itf_flags_command, static) =
{
.path = "show mfib itf flags",
.short_help = "Flags applicable to an MFIB interfaces",
.function = mfib_show_itf_flags,
.is_mp_safe = 1,
};
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