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-rw-r--r--net/tipc/discover.c3
-rw-r--r--net/tipc/msg.h11
-rw-r--r--net/tipc/node.h4
3 files changed, 16 insertions, 2 deletions
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index 5967506833ce..169f3dd038b9 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -89,6 +89,7 @@ static void tipc_disc_init_msg(struct net *net, struct sk_buff *buf, u32 type,
MAX_H_SIZE, dest_domain);
msg_set_non_seq(msg, 1);
msg_set_node_sig(msg, tn->random);
+ msg_set_node_capabilities(msg, 0);
msg_set_dest_domain(msg, dest_domain);
msg_set_bc_netid(msg, tn->net_id);
b_ptr->media->addr2msg(msg_media_addr(msg), &b_ptr->addr);
@@ -133,6 +134,7 @@ void tipc_disc_rcv(struct net *net, struct sk_buff *buf,
u32 net_id = msg_bc_netid(msg);
u32 mtyp = msg_type(msg);
u32 signature = msg_node_sig(msg);
+ u16 caps = msg_node_capabilities(msg);
bool addr_match = false;
bool sign_match = false;
bool link_up = false;
@@ -167,6 +169,7 @@ void tipc_disc_rcv(struct net *net, struct sk_buff *buf,
if (!node)
return;
tipc_node_lock(node);
+ node->capabilities = caps;
link = node->links[bearer->identity];
/* Prepare to validate requesting node's signature and media address */
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index fa167846d1ab..7cece647394c 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -510,7 +510,6 @@ static inline struct tipc_msg *msg_get_wrapped(struct tipc_msg *m)
#define DSC_REQ_MSG 0
#define DSC_RESP_MSG 1
-
/*
* Word 1
*/
@@ -534,6 +533,16 @@ static inline void msg_set_node_sig(struct tipc_msg *m, u32 n)
msg_set_bits(m, 1, 0, 0xffff, n);
}
+static inline u32 msg_node_capabilities(struct tipc_msg *m)
+{
+ return msg_bits(m, 1, 15, 0x1fff);
+}
+
+static inline void msg_set_node_capabilities(struct tipc_msg *m, u32 n)
+{
+ msg_set_bits(m, 1, 15, 0x1fff, n);
+}
+
/*
* Word 2
diff --git a/net/tipc/node.h b/net/tipc/node.h
index 3d18c66b7f78..f78be64e105b 100644
--- a/net/tipc/node.h
+++ b/net/tipc/node.h
@@ -106,6 +106,7 @@ struct tipc_node_bclink {
* @list: links to adjacent nodes in sorted list of cluster's nodes
* @working_links: number of working links to node (both active and standby)
* @link_cnt: number of links to node
+ * @capabilities: bitmap, indicating peer node's functional capabilities
* @signature: node instance identifier
* @link_id: local and remote bearer ids of changing link, if any
* @publ_list: list of publications
@@ -125,7 +126,8 @@ struct tipc_node {
struct tipc_node_bclink bclink;
struct list_head list;
int link_cnt;
- int working_links;
+ u16 working_links;
+ u16 capabilities;
u32 signature;
u32 link_id;
struct list_head publ_list;