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authorTatyana Nikolova <Tatyana.E.Nikolova@intel.com>2015-04-21 16:28:10 -0400
committerDoug Ledford <dledford@redhat.com>2015-05-05 09:18:01 -0400
commit6eec177461751f0fe191cf9977cde692b9481d0a (patch)
tree0e4eebf1d276bab4714bae1b846b6016f246ad6a /include
parent4a75a86c8d04390f268d7237cc49fe9a8e36efe7 (diff)
downloadlinux-stericsson-6eec177461751f0fe191cf9977cde692b9481d0a.tar.gz
RDMA/core: Enable the iWarp Port Mapper to provide the actual address of the connecting peer to its clients
Add functionality to enable the port mapper on the passive side to provide to its clients the actual (non-mapped) ip/tcp address information of the connecting peer 1) Adding remote_info_cb() to process the address info of the connecting peer The address info is provided by the user space port mapper service when the connection is initiated by the peer 2) Adding a hash list to store the remote address info 3) Adding functionality to add/remove the remote address info After the info has been provided to the port mapper client, it is removed from the hash list Signed-off-by: Tatyana Nikolova <tatyana.e.nikolova@intel.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/rdma/iw_portmap.h25
-rw-r--r--include/uapi/rdma/rdma_netlink.h1
2 files changed, 26 insertions, 0 deletions
diff --git a/include/rdma/iw_portmap.h b/include/rdma/iw_portmap.h
index 928b2775e992..fda31673a562 100644
--- a/include/rdma/iw_portmap.h
+++ b/include/rdma/iw_portmap.h
@@ -148,6 +148,16 @@ int iwpm_add_mapping_cb(struct sk_buff *, struct netlink_callback *);
int iwpm_add_and_query_mapping_cb(struct sk_buff *, struct netlink_callback *);
/**
+ * iwpm_remote_info_cb - Process remote connecting peer address info, which
+ * the port mapper has received from the connecting peer
+ *
+ * @cb: Contains the received message (payload and netlink header)
+ *
+ * Stores the IPv4/IPv6 address info in a hash table
+ */
+int iwpm_remote_info_cb(struct sk_buff *, struct netlink_callback *);
+
+/**
* iwpm_mapping_error_cb - Process port mapper notification for error
*
* @skb:
@@ -175,6 +185,21 @@ int iwpm_mapping_info_cb(struct sk_buff *, struct netlink_callback *);
int iwpm_ack_mapping_info_cb(struct sk_buff *, struct netlink_callback *);
/**
+ * iwpm_get_remote_info - Get the remote connecting peer address info
+ *
+ * @mapped_loc_addr: Mapped local address of the listening peer
+ * @mapped_rem_addr: Mapped remote address of the connecting peer
+ * @remote_addr: To store the remote address of the connecting peer
+ * @nl_client: The index of the netlink client
+ *
+ * The remote address info is retrieved and provided to the client in
+ * the remote_addr. After that it is removed from the hash table
+ */
+int iwpm_get_remote_info(struct sockaddr_storage *mapped_loc_addr,
+ struct sockaddr_storage *mapped_rem_addr,
+ struct sockaddr_storage *remote_addr, u8 nl_client);
+
+/**
* iwpm_create_mapinfo - Store local and mapped IPv4/IPv6 address
* info in a hash table
* @local_addr: Local ip/tcp address
diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index de69170a30ce..6e4bb4270ca2 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -37,6 +37,7 @@ enum {
RDMA_NL_IWPM_ADD_MAPPING,
RDMA_NL_IWPM_QUERY_MAPPING,
RDMA_NL_IWPM_REMOVE_MAPPING,
+ RDMA_NL_IWPM_REMOTE_INFO,
RDMA_NL_IWPM_HANDLE_ERR,
RDMA_NL_IWPM_MAPINFO,
RDMA_NL_IWPM_MAPINFO_NUM,