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223 lines
6.7 KiB
223 lines
6.7 KiB
/* |
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Copyright (c) 2013, The Linux Foundation. All rights reserved. |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions are |
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met: |
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* Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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* Redistributions in binary form must reproduce the above |
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copyright notice, this list of conditions and the following |
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disclaimer in the documentation and/or other materials provided |
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with the distribution. |
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* Neither the name of The Linux Foundation nor the names of its |
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contributors may be used to endorse or promote products derived |
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from this software without specific prior written permission. |
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THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
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WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
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BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
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BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
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OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
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IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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/*! |
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@file |
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IPA_Netlink.h |
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@brief |
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IPACM Netlink Messaging Implementation File |
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@Author |
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Skylar Chang |
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*/ |
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#ifndef IPACM_NETLINK_H |
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#define IPACM_NETLINK_H |
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#ifdef __cplusplus |
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extern "C" |
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{ |
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#endif |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <errno.h> |
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#include <pthread.h> |
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#include <sys/select.h> |
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#include <sys/socket.h> |
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#include <linux/if.h> |
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#include <linux/if_addr.h> |
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#include <linux/rtnetlink.h> |
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#include <linux/netlink.h> |
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#include <netinet/in.h> |
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#include "IPACM_Defs.h" |
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#define MAX_NUM_OF_FD 10 |
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#define IPA_NL_MSG_MAX_LEN (2048) |
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/*--------------------------------------------------------------------------- |
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Type representing enumeration of NetLink event indication messages |
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---------------------------------------------------------------------------*/ |
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/*--------------------------------------------------------------------------- |
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Types representing parsed NetLink message |
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---------------------------------------------------------------------------*/ |
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#define IPA_NLA_PARAM_NONE (0x0000) |
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#define IPA_NLA_PARAM_PREFIXADDR (0x0001) |
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#define IPA_NLA_PARAM_LOCALADDR (0x0002) |
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#define IPA_NLA_PARAM_LABELNAME (0x0004) |
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#define IPA_NLA_PARAM_BCASTADDR (0x0008) |
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#define IPA_NLA_PARAM_ACASTADDR (0x0010) |
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#define IPA_NLA_PARAM_MCASTADDR (0x0020) |
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#define IPA_NLA_PARAM_CACHEINFO (0x0080) |
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#define IPA_NLA_PARAM_PROTOINFO (0x0100) |
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#define IPA_NLA_PARAM_FLAGS (0x0200) |
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#define IPA_RTA_PARAM_NONE (0x0000) |
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#define IPA_RTA_PARAM_DST (0x0001) |
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#define IPA_RTA_PARAM_SRC (0x0002) |
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#define IPA_RTA_PARAM_GATEWAY (0x0004) |
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#define IPA_RTA_PARAM_IIF (0x0008) |
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#define IPA_RTA_PARAM_OIF (0x0010) |
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#define IPA_RTA_PARAM_CACHEINFO (0x0020) |
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#define IPA_RTA_PARAM_PRIORITY (0x0080) |
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#define IPA_RTA_PARAM_METRICS (0x0100) |
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/*--------------------------------------------------------------------------- |
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Type representing function callback registered with a socket listener |
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thread for reading from a socket on receipt of an incoming message |
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---------------------------------------------------------------------------*/ |
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typedef int (*ipa_sock_thrd_fd_read_f)(int fd); |
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typedef enum |
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{ |
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IPA_INIT = 0, |
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IPA_LINK_UP_WAIT, |
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IPA_LINK_UP, |
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IPA_LINK_DOWN_WAIT, |
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IPA_LINK_DOWN |
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} ipa_nl_state_e; |
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typedef struct |
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{ |
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int sk_fd; |
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ipa_sock_thrd_fd_read_f read_func; |
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} ipa_nl_sk_fd_map_info_t; |
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typedef struct |
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{ |
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ipa_nl_sk_fd_map_info_t sk_fds[MAX_NUM_OF_FD]; |
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fd_set fdset; |
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int num_fd; |
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int max_fd; |
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} ipa_nl_sk_fd_set_info_t; |
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typedef struct |
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{ |
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int sk_fd; /* socket descriptor */ |
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struct sockaddr_nl sk_addr_loc; /* local address of socket */ |
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} ipa_nl_sk_info_t; |
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typedef struct ipa_nl_addr_s { |
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struct sockaddr_storage ip_addr; |
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unsigned int mask; |
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} ipa_nl_addr_t; |
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typedef struct ipa_nl_proto_info_s { |
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unsigned int param_mask; |
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unsigned int flags; |
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struct ifla_cacheinfo cache_info; |
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} ipa_nl_proto_info_t; |
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typedef struct |
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{ |
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struct ifinfomsg metainfo; /* from header */ |
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} ipa_nl_link_info_t; |
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typedef struct ipa_nl_addr_info_s { |
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struct ifaddrmsg metainfo; /* from header */ |
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struct /* attributes */ |
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{ |
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unsigned int param_mask; |
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unsigned char label_name[IF_NAME_LEN]; |
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struct sockaddr_storage prefix_addr; |
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struct sockaddr_storage local_addr; |
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struct sockaddr_storage bcast_addr; |
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struct sockaddr_storage acast_addr; |
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struct sockaddr_storage mcast_addr; |
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} attr_info; |
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} ipa_nl_addr_info_t; |
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typedef struct ipa_nl_neigh_info_s { |
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struct ndmsg metainfo; /* from header */ |
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struct /* attributes */ |
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{ |
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unsigned int param_mask; |
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struct sockaddr_storage local_addr; |
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struct sockaddr lladdr_hwaddr; |
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} attr_info; |
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} ipa_nl_neigh_info_t; |
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typedef struct ipa_nl_route_info_s { |
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struct rtmsg metainfo; /* from header */ |
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struct /* attributes */ |
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{ |
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unsigned int param_mask; |
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struct sockaddr_storage dst_addr; |
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struct sockaddr_storage src_addr; |
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struct sockaddr_storage gateway_addr; |
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struct sockaddr_storage mark_addr; |
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struct rta_cacheinfo cache_info; |
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__u32 iif_index; /* Link index */ |
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__u32 oif_index; /* Link index */ |
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__u32 priority; |
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__u32 metrics; |
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ipa_nl_proto_info_t proto_info; |
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} attr_info; |
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} ipa_nl_route_info_t; |
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#define IPA_FLOW_TYPE_INVALID (-1) |
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typedef struct |
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{ |
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unsigned int type; |
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bool link_event; |
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/* Optional parameters */ |
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ipa_nl_link_info_t nl_link_info; |
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ipa_nl_addr_info_t nl_addr_info; |
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ipa_nl_neigh_info_t nl_neigh_info; |
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ipa_nl_route_info_t nl_route_info; |
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} ipa_nl_msg_t; |
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/* Initialization routine for listener on NetLink sockets interface */ |
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int ipa_nl_listener_init |
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( |
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unsigned int nl_type, |
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unsigned int nl_groups, |
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ipa_nl_sk_fd_set_info_t *sk_fdset, |
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ipa_sock_thrd_fd_read_f read_f |
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); |
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/* Virtual function registered to receive incoming messages over the NETLINK routing socket*/ |
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int ipa_nl_recv_msg(int fd); |
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/* map mask value for ipv6 */ |
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int mask_v6(int index, uint32_t *mask); |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* IPACM_NETLINK_H */
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