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nuttx/net: Expose the net_ipv6addr_maskcmp interface to user-mode calls

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This interface needs to be called in the libc library, but the interface is implemented in the kernel, so this interface needs to be exposed

Signed-off-by: zhangshuai39 <zhangshuai39@xiaomi.com>
This commit is contained in:
zhangshuai39
2025-02-07 17:01:33 +08:00
committed by Xiang Xiao
parent 6144b51848
commit c44834fb92
4 changed files with 26 additions and 85 deletions
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include/nuttx/net/ip.h
+24 -3
View File
@@ -592,9 +592,30 @@ extern "C"
#endif
#ifdef CONFIG_NET_IPv6
bool net_ipv6addr_maskcmp(const net_ipv6addr_t addr1,
const net_ipv6addr_t addr2,
const net_ipv6addr_t mask);
static inline_function bool net_ipv6addr_maskcmp(const net_ipv6addr_t addr1,
const net_ipv6addr_t addr2,
const net_ipv6addr_t mask)
{
int i;
/* Start from the "bottom" where the addresses will most likely differ */
for (i = 7; i >= 0; i--)
{
/* Same? */
if ((addr1[i] & mask[i]) != (addr2[i] & mask[i]))
{
/* No.. the addresses are different */
return false;
}
}
/* The addresses are the same */
return true;
}
#endif
/****************************************************************************
net/utils/CMakeLists.txt
+1 -1
View File
@@ -39,7 +39,7 @@ set(SRCS
# IPv6 utilities
if(CONFIG_NET_IPv6)
list(APPEND SRCS net_ipv6_maskcmp.c net_ipv6_pref2mask.c net_ipv6_payload.c)
list(APPEND SRCS net_ipv6_pref2mask.c net_ipv6_payload.c)
endif()
# TCP utilities
net/utils/Make.defs
+1 -1
View File
@@ -30,7 +30,7 @@ NET_CSRCS += net_bufpool.c
# IPv6 utilities
ifeq ($(CONFIG_NET_IPv6),y)
NET_CSRCS += net_ipv6_maskcmp.c net_ipv6_pref2mask.c net_ipv6_payload.c
NET_CSRCS += net_ipv6_pref2mask.c net_ipv6_payload.c
endif
# TCP utilities
net/utils/net_ipv6_maskcmp.c
-80
View File
@@ -1,80 +0,0 @@
/****************************************************************************
* net/utils/net_ipv6_maskcmp.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <nuttx/net/ip.h>
#ifdef CONFIG_NET_IPv6
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: net_ipv6addr_maskcmp
*
* Description:
* Compare two IPv6 addresses under a netmask. The mask is used to mask
* out the bits that are to be compared: Buts within the mask much
* match exactly; bits outside if the mask are ignored.
*
* Input Parameters:
* addr1 - The first IP address.
* addr2 - The second IP address.
* mask - The netmask.
*
* Returned Value:
* True if the address under the mask are equal
*
****************************************************************************/
bool net_ipv6addr_maskcmp(const net_ipv6addr_t addr1,
const net_ipv6addr_t addr2,
const net_ipv6addr_t mask)
{
int i;
/* Start from the "bottom" where the addresses will most likely differ */
for (i = 7; i >= 0; i--)
{
/* Same? */
if ((addr1[i] & mask[i]) != (addr2[i] & mask[i]))
{
/* No.. the addresses are different */
return false;
}
}
/* The addresses are the same */
return true;
}
#endif /* CONFIG_NET_IPv6 */