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Message-ID: <1423471819-23112-12-git-send-email-richard.alpe@ericsson.com>
Date: Mon, 9 Feb 2015 09:50:13 +0100
From: <richard.alpe@...csson.com>
To: <netdev@...r.kernel.org>
CC: <tipc-discussion@...ts.sourceforge.net>,
Richard Alpe <richard.alpe@...csson.com>
Subject: [PATCH net-next v1 11/17] tipc: convert legacy nl node dump to nl compat
From: Richard Alpe <richard.alpe@...csson.com>
Convert TIPC_CMD_GET_NODES to compat dumpit and remove global node
counter solely used by the legacy API.
Signed-off-by: Richard Alpe <richard.alpe@...csson.com>
Reviewed-by: Erik Hugne <erik.hugne@...csson.com>
Reviewed-by: Ying Xue <ying.xue@...driver.com>
Reviewed-by: Jon Maloy <jon.maloy@...csson.com>
---
net/tipc/config.c | 4 ----
net/tipc/netlink_compat.c | 22 +++++++++++++++++++
net/tipc/node.c | 54 -----------------------------------------------
net/tipc/node.h | 2 --
4 files changed, 22 insertions(+), 60 deletions(-)
diff --git a/net/tipc/config.c b/net/tipc/config.c
index df41082..74babd7 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -205,10 +205,6 @@ struct sk_buff *tipc_cfg_do_cmd(struct net *net, u32 orig_node, u16 cmd,
case TIPC_CMD_NOOP:
rep_tlv_buf = tipc_cfg_reply_none();
break;
- case TIPC_CMD_GET_NODES:
- rep_tlv_buf = tipc_node_get_nodes(net, req_tlv_area,
- req_tlv_space);
- break;
case TIPC_CMD_SHOW_STATS:
rep_tlv_buf = tipc_show_stats();
break;
diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c
index d23075e..0dc448e 100644
--- a/net/tipc/netlink_compat.c
+++ b/net/tipc/netlink_compat.c
@@ -37,6 +37,7 @@
#include "link.h"
#include "name_table.h"
#include "socket.h"
+#include "node.h"
#include <net/genetlink.h>
#include <linux/tipc_config.h>
@@ -835,6 +836,21 @@ static int tipc_nl_compat_media_dump(struct tipc_nl_compat_msg *msg,
nla_len(media[TIPC_NLA_MEDIA_NAME]));
}
+static int tipc_nl_compat_node_dump(struct tipc_nl_compat_msg *msg,
+ struct nlattr **attrs)
+{
+ struct tipc_node_info node_info;
+ struct nlattr *node[TIPC_NLA_NODE_MAX + 1];
+
+ nla_parse_nested(node, TIPC_NLA_NODE_MAX, attrs[TIPC_NLA_NODE], NULL);
+
+ node_info.addr = htonl(nla_get_u32(node[TIPC_NLA_NODE_ADDR]));
+ node_info.up = htonl(nla_get_flag(node[TIPC_NLA_NODE_UP]));
+
+ return tipc_add_tlv(msg->rep, TIPC_TLV_NODE_INFO, &node_info,
+ sizeof(node_info));
+}
+
static int tipc_nl_compat_handle(struct tipc_nl_compat_msg *msg)
{
struct tipc_nl_compat_cmd_dump dump;
@@ -903,6 +919,11 @@ static int tipc_nl_compat_handle(struct tipc_nl_compat_msg *msg)
dump.dumpit = tipc_nl_media_dump;
dump.format = tipc_nl_compat_media_dump;
return tipc_nl_compat_dumpit(&dump, msg);
+ case TIPC_CMD_GET_NODES:
+ msg->rep_size = ULTRA_STRING_MAX_LEN;
+ dump.dumpit = tipc_nl_node_dump;
+ dump.format = tipc_nl_compat_node_dump;
+ return tipc_nl_compat_dumpit(&dump, msg);
}
return -EOPNOTSUPP;
@@ -1011,6 +1032,7 @@ static int tipc_nl_compat_tmp_wrap(struct sk_buff *skb, struct genl_info *info)
case TIPC_CMD_SHOW_NAME_TABLE:
case TIPC_CMD_SHOW_PORTS:
case TIPC_CMD_GET_MEDIA_NAMES:
+ case TIPC_CMD_GET_NODES:
return tipc_nl_compat_recv(skb, info);
}
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 46b87f7..ddaa2bb 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -120,7 +120,6 @@ struct tipc_node *tipc_node_create(struct net *net, u32 addr)
list_add_tail_rcu(&n_ptr->list, &temp_node->list);
n_ptr->action_flags = TIPC_WAIT_PEER_LINKS_DOWN;
n_ptr->signature = INVALID_NODE_SIG;
- tn->num_nodes++;
exit:
spin_unlock_bh(&tn->node_list_lock);
return n_ptr;
@@ -131,8 +130,6 @@ static void tipc_node_delete(struct tipc_net *tn, struct tipc_node *n_ptr)
list_del_rcu(&n_ptr->list);
hlist_del_rcu(&n_ptr->hash);
kfree_rcu(n_ptr, rcu);
-
- tn->num_nodes--;
}
void tipc_node_stop(struct net *net)
@@ -407,57 +404,6 @@ static void node_lost_contact(struct tipc_node *n_ptr)
}
}
-struct sk_buff *tipc_node_get_nodes(struct net *net, const void *req_tlv_area,
- int req_tlv_space)
-{
- struct tipc_net *tn = net_generic(net, tipc_net_id);
- u32 domain;
- struct sk_buff *buf;
- struct tipc_node *n_ptr;
- struct tipc_node_info node_info;
- u32 payload_size;
-
- if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_NET_ADDR))
- return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
-
- domain = ntohl(*(__be32 *)TLV_DATA(req_tlv_area));
- if (!tipc_addr_domain_valid(domain))
- return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
- " (network address)");
-
- spin_lock_bh(&tn->node_list_lock);
- if (!tn->num_nodes) {
- spin_unlock_bh(&tn->node_list_lock);
- return tipc_cfg_reply_none();
- }
-
- /* For now, get space for all other nodes */
- payload_size = TLV_SPACE(sizeof(node_info)) * tn->num_nodes;
- if (payload_size > 32768u) {
- spin_unlock_bh(&tn->node_list_lock);
- return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
- " (too many nodes)");
- }
- spin_unlock_bh(&tn->node_list_lock);
-
- buf = tipc_cfg_reply_alloc(payload_size);
- if (!buf)
- return NULL;
-
- /* Add TLVs for all nodes in scope */
- rcu_read_lock();
- list_for_each_entry_rcu(n_ptr, &tn->node_list, list) {
- if (!tipc_in_scope(domain, n_ptr->addr))
- continue;
- node_info.addr = htonl(n_ptr->addr);
- node_info.up = htonl(tipc_node_is_up(n_ptr));
- tipc_cfg_append_tlv(buf, TIPC_TLV_NODE_INFO,
- &node_info, sizeof(node_info));
- }
- rcu_read_unlock();
- return buf;
-}
-
/**
* tipc_node_get_linkname - get the name of a link
*
diff --git a/net/tipc/node.h b/net/tipc/node.h
index 59dafee..3d18c66 100644
--- a/net/tipc/node.h
+++ b/net/tipc/node.h
@@ -142,8 +142,6 @@ void tipc_node_link_down(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
void tipc_node_link_up(struct tipc_node *n_ptr, struct tipc_link *l_ptr);
int tipc_node_active_links(struct tipc_node *n_ptr);
int tipc_node_is_up(struct tipc_node *n_ptr);
-struct sk_buff *tipc_node_get_nodes(struct net *net, const void *req_tlv_area,
- int req_tlv_space);
int tipc_node_get_linkname(struct net *net, u32 bearer_id, u32 node,
char *linkname, size_t len);
void tipc_node_unlock(struct tipc_node *node);
--
2.1.4
--
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