diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/tipc/core.h | 5 | ||||
| -rw-r--r-- | net/tipc/name_distr.c | 67 | ||||
| -rw-r--r-- | net/tipc/name_distr.h | 1 | ||||
| -rw-r--r-- | net/tipc/name_table.c | 5 | ||||
| -rw-r--r-- | net/tipc/node.c | 60 | ||||
| -rw-r--r-- | net/tipc/node.h | 3 |
6 files changed, 74 insertions, 67 deletions
diff --git a/net/tipc/core.h b/net/tipc/core.h index 18e95a8..5504d63 100644 --- a/net/tipc/core.h +++ b/net/tipc/core.h @@ -118,6 +118,11 @@ static inline int tipc_netid(struct net *net) return tipc_net(net)->net_id; } +static inline struct list_head *tipc_nodes(struct net *net) +{ + return &tipc_net(net)->node_list; +} + static inline u16 mod(u16 x) { return x & 0xffffu; diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c index f51c8bd..ebe9d0f 100644 --- a/net/tipc/name_distr.c +++ b/net/tipc/name_distr.c @@ -84,31 +84,6 @@ static struct sk_buff *named_prepare_buf(struct net *net, u32 type, u32 size, return buf; } -void named_cluster_distribute(struct net *net, struct sk_buff *skb) -{ - struct tipc_net *tn = net_generic(net, tipc_net_id); - struct sk_buff *oskb; - struct tipc_node *node; - u32 dnode; - - rcu_read_lock(); - list_for_each_entry_rcu(node, &tn->node_list, list) { - dnode = node->addr; - if (in_own_node(net, dnode)) - continue; - if (!tipc_node_is_up(node)) - continue; - oskb = pskb_copy(skb, GFP_ATOMIC); - if (!oskb) - break; - msg_set_destnode(buf_msg(oskb), dnode); - tipc_node_xmit_skb(net, oskb, dnode, 0); - } - rcu_read_unlock(); - - kfree_skb(skb); -} - /** * tipc_named_publish - tell other nodes about a new publication by this node */ @@ -226,42 +201,6 @@ void tipc_named_node_up(struct net *net, u32 dnode) tipc_node_xmit(net, &head, dnode, 0); } -static void tipc_publ_subscribe(struct net *net, struct publication *publ, - u32 addr) -{ - struct tipc_node *node; - - if (in_own_node(net, addr)) - return; - - node = tipc_node_find(net, addr); - if (!node) { - pr_warn("Node subscription rejected, unknown node 0x%x\n", - addr); - return; - } - - tipc_node_lock(node); - list_add_tail(&publ->nodesub_list, &node->publ_list); - tipc_node_unlock(node); - tipc_node_put(node); -} - -static void tipc_publ_unsubscribe(struct net *net, struct publication *publ, - u32 addr) -{ - struct tipc_node *node; - - node = tipc_node_find(net, addr); - if (!node) - return; - - tipc_node_lock(node); - list_del_init(&publ->nodesub_list); - tipc_node_unlock(node); - tipc_node_put(node); -} - /** * tipc_publ_purge - remove publication associated with a failed node * @@ -277,7 +216,7 @@ static void tipc_publ_purge(struct net *net, struct publication *publ, u32 addr) p = tipc_nametbl_remove_publ(net, publ->type, publ->lower, publ->node, publ->ref, publ->key); if (p) - tipc_publ_unsubscribe(net, p, addr); + tipc_node_unsubscribe(net, &p->nodesub_list, addr); spin_unlock_bh(&tn->nametbl_lock); if (p != publ) { @@ -317,7 +256,7 @@ static bool tipc_update_nametbl(struct net *net, struct distr_item *i, TIPC_CLUSTER_SCOPE, node, ntohl(i->ref), ntohl(i->key)); if (publ) { - tipc_publ_subscribe(net, publ, node); + tipc_node_subscribe(net, &publ->nodesub_list, node); return true; } } else if (dtype == WITHDRAWAL) { @@ -326,7 +265,7 @@ static bool tipc_update_nametbl(struct net *net, struct distr_item *i, node, ntohl(i->ref), ntohl(i->key)); if (publ) { - tipc_publ_unsubscribe(net, publ, node); + tipc_node_unsubscribe(net, &publ->nodesub_list, node); kfree_rcu(publ, rcu); return true; } diff --git a/net/tipc/name_distr.h b/net/tipc/name_distr.h index dd2d9fd..1264ba0 100644 --- a/net/tipc/name_distr.h +++ b/net/tipc/name_distr.h @@ -69,7 +69,6 @@ struct distr_item { struct sk_buff *tipc_named_publish(struct net *net, struct publication *publ); struct sk_buff *tipc_named_withdraw(struct net *net, struct publication *publ); -void named_cluster_distribute(struct net *net, struct sk_buff *buf); void tipc_named_node_up(struct net *net, u32 dnode); void tipc_named_rcv(struct net *net, struct sk_buff_head *msg_queue); void tipc_named_reinit(struct net *net); diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c index 0f47f08..91fce70 100644 --- a/net/tipc/name_table.c +++ b/net/tipc/name_table.c @@ -42,6 +42,7 @@ #include "subscr.h" #include "bcast.h" #include "addr.h" +#include "node.h" #include <net/genetlink.h> #define TIPC_NAMETBL_SIZE 1024 /* must be a power of 2 */ @@ -677,7 +678,7 @@ struct publication *tipc_nametbl_publish(struct net *net, u32 type, u32 lower, spin_unlock_bh(&tn->nametbl_lock); if (buf) - named_cluster_distribute(net, buf); + tipc_node_broadcast(net, buf); return publ; } @@ -709,7 +710,7 @@ int tipc_nametbl_withdraw(struct net *net, u32 type, u32 lower, u32 ref, spin_unlock_bh(&tn->nametbl_lock); if (skb) { - named_cluster_distribute(net, skb); + tipc_node_broadcast(net, skb); return 1; } return 0; diff --git a/net/tipc/node.c b/net/tipc/node.c index 7756804..9321952 100644 --- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -234,6 +234,42 @@ void tipc_node_stop(struct net *net) spin_unlock_bh(&tn->node_list_lock); } +void tipc_node_subscribe(struct net *net, struct list_head *subscr, u32 addr) +{ + struct tipc_node *n; + + if (in_own_node(net, addr)) + return; + + n = tipc_node_find(net, addr); + if (!n) { + pr_warn("Node subscribe rejected, unknown node 0x%x\n", addr); + return; + } + tipc_node_lock(n); + list_add_tail(subscr, &n->publ_list); + tipc_node_unlock(n); + tipc_node_put(n); +} + +void tipc_node_unsubscribe(struct net *net, struct list_head *subscr, u32 addr) +{ + struct tipc_node *n; + + if (in_own_node(net, addr)) + return; + + n = tipc_node_find(net, addr); + if (!n) { + pr_warn("Node unsubscribe rejected, unknown node 0x%x\n", addr); + return; + } + tipc_node_lock(n); + list_del_init(subscr); + tipc_node_unlock(n); + tipc_node_put(n); +} + int tipc_node_add_conn(struct net *net, u32 dnode, u32 port, u32 peer_port) { struct tipc_node *node; @@ -1075,6 +1111,30 @@ int tipc_node_xmit_skb(struct net *net, struct sk_buff *skb, u32 dnode, return 0; } +void tipc_node_broadcast(struct net *net, struct sk_buff *skb) +{ + struct sk_buff *txskb; + struct tipc_node *n; + u32 dst; + + rcu_read_lock(); + list_for_each_entry_rcu(n, tipc_nodes(net), list) { + dst = n->addr; + if (in_own_node(net, dst)) + continue; + if (!tipc_node_is_up(n)) + continue; + txskb = pskb_copy(skb, GFP_ATOMIC); + if (!txskb) + break; + msg_set_destnode(buf_msg(txskb), dst); + tipc_node_xmit_skb(net, txskb, dst, 0); + } + rcu_read_unlock(); + + kfree_skb(skb); +} + /** * tipc_node_bc_rcv - process TIPC broadcast packet arriving from off-node * @net: the applicable net namespace diff --git a/net/tipc/node.h b/net/tipc/node.h index 6734562..dd79e97 100644 --- a/net/tipc/node.h +++ b/net/tipc/node.h @@ -149,6 +149,9 @@ int tipc_node_xmit(struct net *net, struct sk_buff_head *list, u32 dnode, int selector); int tipc_node_xmit_skb(struct net *net, struct sk_buff *skb, u32 dest, u32 selector); +void tipc_node_subscribe(struct net *net, struct list_head *subscr, u32 addr); +void tipc_node_unsubscribe(struct net *net, struct list_head *subscr, u32 addr); +void tipc_node_broadcast(struct net *net, struct sk_buff *skb); int tipc_node_add_conn(struct net *net, u32 dnode, u32 port, u32 peer_port); void tipc_node_remove_conn(struct net *net, u32 dnode, u32 port); int tipc_nl_node_dump(struct sk_buff *skb, struct netlink_callback *cb); |