4f3d78640d
Currently clatd accepts all netlink messages without validating that they come from the kernel. This could allow another app to spoof these messages. Fix this by connecting the socket to the kernel so that no other process can send it messages. Bug: 7664960 Change-Id: I994641ea13cfd07fb25ccf52fcbbf5d1c9633ec4
30 lines
1.2 KiB
C
30 lines
1.2 KiB
C
/*
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* Copyright 2012 Daniel Drown
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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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* netlink_msg.h - send an ifaddrmsg/ifinfomsg via netlink
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*/
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#ifndef __NETLINK_IFMSG_H__
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#define __NETLINK_IFMSG_H__
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size_t inet_family_size(int family);
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struct nl_msg *nlmsg_alloc_ifaddr(uint16_t type, uint16_t flags, struct ifaddrmsg *ifa);
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struct nl_msg *nlmsg_alloc_ifinfo(uint16_t type, uint16_t flags, struct ifinfomsg *ifi);
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struct nl_msg *nlmsg_alloc_rtmsg(uint16_t type, uint16_t flags, struct rtmsg *rt);
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void send_netlink_msg(struct nl_msg *msg, struct nl_cb *callbacks);
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void send_ifaddrmsg(uint16_t type, uint16_t flags, struct ifaddrmsg *ifa, struct nl_cb *callbacks);
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int netlink_sendrecv(struct nl_msg *msg);
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int netlink_set_kernel_only(struct nl_sock *nl_sk);
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#endif
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