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Diffstat (limited to 'include/net')
-rw-r--r--include/net/amt.h104
1 files changed, 103 insertions, 1 deletions
diff --git a/include/net/amt.h b/include/net/amt.h
index 31b0cf17044b..95b142ec1183 100644
--- a/include/net/amt.h
+++ b/include/net/amt.h
@@ -21,6 +21,46 @@ enum amt_msg_type {
#define AMT_MSG_MAX (__AMT_MSG_MAX - 1)
+enum amt_ops {
+ /* A*B */
+ AMT_OPS_INT,
+ /* A+B */
+ AMT_OPS_UNI,
+ /* A-B */
+ AMT_OPS_SUB,
+ /* B-A */
+ AMT_OPS_SUB_REV,
+ __AMT_OPS_MAX,
+};
+
+#define AMT_OPS_MAX (__AMT_OPS_MAX - 1)
+
+enum amt_filter {
+ AMT_FILTER_FWD,
+ AMT_FILTER_D_FWD,
+ AMT_FILTER_FWD_NEW,
+ AMT_FILTER_D_FWD_NEW,
+ AMT_FILTER_ALL,
+ AMT_FILTER_NONE_NEW,
+ AMT_FILTER_BOTH,
+ AMT_FILTER_BOTH_NEW,
+ __AMT_FILTER_MAX,
+};
+
+#define AMT_FILTER_MAX (__AMT_FILTER_MAX - 1)
+
+enum amt_act {
+ AMT_ACT_GMI,
+ AMT_ACT_GMI_ZERO,
+ AMT_ACT_GT,
+ AMT_ACT_STATUS_FWD_NEW,
+ AMT_ACT_STATUS_D_FWD_NEW,
+ AMT_ACT_STATUS_NONE_NEW,
+ __AMT_ACT_MAX,
+};
+
+#define AMT_ACT_MAX (__AMT_ACT_MAX - 1)
+
enum amt_status {
AMT_STATUS_INIT,
AMT_STATUS_SENT_DISCOVERY,
@@ -152,6 +192,17 @@ struct amt_header_mcast_data {
#endif
} __packed;
+struct amt_headers {
+ union {
+ struct amt_header_discovery discovery;
+ struct amt_header_advertisement advertisement;
+ struct amt_header_request request;
+ struct amt_header_membership_query query;
+ struct amt_header_membership_update update;
+ struct amt_header_mcast_data data;
+ };
+} __packed;
+
struct amt_gw_headers {
union {
struct amt_header_discovery discovery;
@@ -191,6 +242,56 @@ struct amt_tunnel_list {
struct hlist_head groups[];
};
+union amt_addr {
+ __be32 ip4;
+#if IS_ENABLED(CONFIG_IPV6)
+ struct in6_addr ip6;
+#endif
+};
+
+/* RFC 3810
+ *
+ * When the router is in EXCLUDE mode, the router state is represented
+ * by the notation EXCLUDE (X,Y), where X is called the "Requested List"
+ * and Y is called the "Exclude List". All sources, except those from
+ * the Exclude List, will be forwarded by the router
+ */
+enum amt_source_status {
+ AMT_SOURCE_STATUS_NONE,
+ /* Node of Requested List */
+ AMT_SOURCE_STATUS_FWD,
+ /* Node of Exclude List */
+ AMT_SOURCE_STATUS_D_FWD,
+};
+
+/* protected by gnode->lock */
+struct amt_source_node {
+ struct hlist_node node;
+ struct amt_group_node *gnode;
+ struct delayed_work source_timer;
+ union amt_addr source_addr;
+ enum amt_source_status status;
+#define AMT_SOURCE_OLD 0
+#define AMT_SOURCE_NEW 1
+ u8 flags;
+ struct rcu_head rcu;
+};
+
+/* Protected by amt_tunnel_list->lock */
+struct amt_group_node {
+ struct amt_dev *amt;
+ union amt_addr group_addr;
+ union amt_addr host_addr;
+ bool v6;
+ u8 filter_mode;
+ u32 nr_sources;
+ struct amt_tunnel_list *tunnel_list;
+ struct hlist_node node;
+ struct delayed_work group_timer;
+ struct rcu_head rcu;
+ struct hlist_head sources[];
+};
+
struct amt_dev {
struct net_device *dev;
struct net_device *stream_dev;
@@ -246,8 +347,9 @@ struct amt_dev {
reserved:16;
};
-#define AMT_TOS 0xc0
+#define AMT_TOS 0xc0
#define AMT_IPHDR_OPTS 4
+#define AMT_GC_INTERVAL (30 * 1000)
#define AMT_MAX_GROUP 32
#define AMT_MAX_SOURCE 128
#define AMT_HSIZE_SHIFT 8