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Diffstat (limited to 'data-ipa-cfg-mgr/ipacm/inc/IPACM_Netlink.h')
| -rw-r--r-- | data-ipa-cfg-mgr/ipacm/inc/IPACM_Netlink.h | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/data-ipa-cfg-mgr/ipacm/inc/IPACM_Netlink.h b/data-ipa-cfg-mgr/ipacm/inc/IPACM_Netlink.h new file mode 100644 index 0000000..b0bdeb8 --- /dev/null +++ b/data-ipa-cfg-mgr/ipacm/inc/IPACM_Netlink.h @@ -0,0 +1,223 @@ +/* +Copyright (c) 2013, The Linux Foundation. All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials provided + with the distribution. + * Neither the name of The Linux Foundation nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED +WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT +ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS +BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR +BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, +WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE +OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN +IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +/*! + @file + IPA_Netlink.h + + @brief + IPACM Netlink Messaging Implementation File + + @Author + Skylar Chang + +*/ +#ifndef IPACM_NETLINK_H +#define IPACM_NETLINK_H + +#ifdef __cplusplus +extern "C" +{ +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <errno.h> +#include <pthread.h> +#include <sys/select.h> +#include <sys/socket.h> +#include <linux/if.h> +#include <linux/if_addr.h> +#include <linux/rtnetlink.h> +#include <linux/netlink.h> +#include <netinet/in.h> +#include "IPACM_Defs.h" + +#define MAX_NUM_OF_FD 10 +#define IPA_NL_MSG_MAX_LEN (2048) + +/*--------------------------------------------------------------------------- + Type representing enumeration of NetLink event indication messages +---------------------------------------------------------------------------*/ + +/*--------------------------------------------------------------------------- + Types representing parsed NetLink message +---------------------------------------------------------------------------*/ +#define IPA_NLA_PARAM_NONE (0x0000) +#define IPA_NLA_PARAM_PREFIXADDR (0x0001) +#define IPA_NLA_PARAM_LOCALADDR (0x0002) +#define IPA_NLA_PARAM_LABELNAME (0x0004) +#define IPA_NLA_PARAM_BCASTADDR (0x0008) +#define IPA_NLA_PARAM_ACASTADDR (0x0010) +#define IPA_NLA_PARAM_MCASTADDR (0x0020) +#define IPA_NLA_PARAM_CACHEINFO (0x0080) +#define IPA_NLA_PARAM_PROTOINFO (0x0100) +#define IPA_NLA_PARAM_FLAGS (0x0200) + +#define IPA_RTA_PARAM_NONE (0x0000) +#define IPA_RTA_PARAM_DST (0x0001) +#define IPA_RTA_PARAM_SRC (0x0002) +#define IPA_RTA_PARAM_GATEWAY (0x0004) +#define IPA_RTA_PARAM_IIF (0x0008) +#define IPA_RTA_PARAM_OIF (0x0010) +#define IPA_RTA_PARAM_CACHEINFO (0x0020) +#define IPA_RTA_PARAM_PRIORITY (0x0080) +#define IPA_RTA_PARAM_METRICS (0x0100) + + +/*--------------------------------------------------------------------------- + Type representing function callback registered with a socket listener + thread for reading from a socket on receipt of an incoming message +---------------------------------------------------------------------------*/ +typedef int (*ipa_sock_thrd_fd_read_f)(int fd); + +typedef enum +{ + IPA_INIT = 0, + IPA_LINK_UP_WAIT, + IPA_LINK_UP, + IPA_LINK_DOWN_WAIT, + IPA_LINK_DOWN +} ipa_nl_state_e; + +typedef struct +{ + int sk_fd; + ipa_sock_thrd_fd_read_f read_func; +} ipa_nl_sk_fd_map_info_t; + +typedef struct +{ + ipa_nl_sk_fd_map_info_t sk_fds[MAX_NUM_OF_FD]; + fd_set fdset; + int num_fd; + int max_fd; +} ipa_nl_sk_fd_set_info_t; + +typedef struct +{ + int sk_fd; /* socket descriptor */ + struct sockaddr_nl sk_addr_loc; /* local address of socket */ +} ipa_nl_sk_info_t; + +typedef struct ipa_nl_addr_s { + struct sockaddr_storage ip_addr; + unsigned int mask; +} ipa_nl_addr_t; + +typedef struct ipa_nl_proto_info_s { + unsigned int param_mask; + unsigned int flags; + struct ifla_cacheinfo cache_info; +} ipa_nl_proto_info_t; + +typedef struct +{ + struct ifinfomsg metainfo; /* from header */ +} ipa_nl_link_info_t; + + + +typedef struct ipa_nl_addr_info_s { + struct ifaddrmsg metainfo; /* from header */ + struct /* attributes */ + { + unsigned int param_mask; + unsigned char label_name[IF_NAME_LEN]; + struct sockaddr_storage prefix_addr; + struct sockaddr_storage local_addr; + struct sockaddr_storage bcast_addr; + struct sockaddr_storage acast_addr; + struct sockaddr_storage mcast_addr; + } attr_info; +} ipa_nl_addr_info_t; + + +typedef struct ipa_nl_neigh_info_s { + struct ndmsg metainfo; /* from header */ + struct /* attributes */ + { + unsigned int param_mask; + struct sockaddr_storage local_addr; + struct sockaddr lladdr_hwaddr; + } attr_info; +} ipa_nl_neigh_info_t; + + + +typedef struct ipa_nl_route_info_s { + struct rtmsg metainfo; /* from header */ + struct /* attributes */ + { + unsigned int param_mask; + struct sockaddr_storage dst_addr; + struct sockaddr_storage src_addr; + struct sockaddr_storage gateway_addr; + struct sockaddr_storage mark_addr; + struct rta_cacheinfo cache_info; + __u32 iif_index; /* Link index */ + __u32 oif_index; /* Link index */ + __u32 priority; + __u32 metrics; + ipa_nl_proto_info_t proto_info; + } attr_info; +} ipa_nl_route_info_t; + +#define IPA_FLOW_TYPE_INVALID (-1) + +typedef struct +{ + unsigned int type; + bool link_event; + /* Optional parameters */ + ipa_nl_link_info_t nl_link_info; + ipa_nl_addr_info_t nl_addr_info; + ipa_nl_neigh_info_t nl_neigh_info; + ipa_nl_route_info_t nl_route_info; +} ipa_nl_msg_t; + +/* Initialization routine for listener on NetLink sockets interface */ +int ipa_nl_listener_init +( + unsigned int nl_type, + unsigned int nl_groups, + ipa_nl_sk_fd_set_info_t *sk_fdset, + ipa_sock_thrd_fd_read_f read_f + ); + +/* Virtual function registered to receive incoming messages over the NETLINK routing socket*/ +int ipa_nl_recv_msg(int fd); + +/* map mask value for ipv6 */ +int mask_v6(int index, uint32_t *mask); + +#ifdef __cplusplus +} +#endif + +#endif /* IPACM_NETLINK_H */ |