c7eec83f08
The RDNSS options (RFC 6106) used to configure DNS servers via
router advertisements are passed from the kernel to userspace via
RTM_NEWNDUSEROPT netlink messages. Add code to NetlinkEvent to
parse them.
Also fix a compiler warning and a couple of style issues.
[Cherry-pick of b185e90dcc]
Bug: 9180552
Change-Id: I6c532c8f0ceef3afdc977a431a036df398013e1a
59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _NETLINKEVENT_H
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#define _NETLINKEVENT_H
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#include <sysutils/NetlinkListener.h>
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#define NL_PARAMS_MAX 32
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class NetlinkEvent {
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int mSeq;
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char *mPath;
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int mAction;
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char *mSubsystem;
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char *mParams[NL_PARAMS_MAX];
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public:
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const static int NlActionUnknown;
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const static int NlActionAdd;
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const static int NlActionRemove;
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const static int NlActionChange;
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const static int NlActionLinkDown;
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const static int NlActionLinkUp;
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const static int NlActionAddressUpdated;
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const static int NlActionAddressRemoved;
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const static int NlActionRdnss;
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NetlinkEvent();
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virtual ~NetlinkEvent();
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bool decode(char *buffer, int size, int format = NetlinkListener::NETLINK_FORMAT_ASCII);
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const char *findParam(const char *paramName);
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const char *getSubsystem() { return mSubsystem; }
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int getAction() { return mAction; }
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void dump();
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protected:
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bool parseBinaryNetlinkMessage(char *buffer, int size);
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bool parseAsciiNetlinkMessage(char *buffer, int size);
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bool parseIfAddrMessage(int type, struct ifaddrmsg *ifaddr, int rtasize);
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bool parseNdUserOptMessage(struct nduseroptmsg *msg, int optsize);
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};
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#endif
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