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-rw-r--r--net/tipc/core.c159
1 files changed, 51 insertions, 108 deletions
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 3256bd7d398..e071579e085 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -34,39 +34,17 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/random.h>
-
#include "core.h"
-#include "dbg.h"
#include "ref.h"
-#include "net.h"
-#include "user_reg.h"
#include "name_table.h"
#include "subscr.h"
#include "config.h"
-#define TIPC_MOD_VER "1.6.4"
-
-#ifndef CONFIG_TIPC_ZONES
-#define CONFIG_TIPC_ZONES 3
-#endif
-
-#ifndef CONFIG_TIPC_CLUSTERS
-#define CONFIG_TIPC_CLUSTERS 1
-#endif
-
#ifndef CONFIG_TIPC_NODES
#define CONFIG_TIPC_NODES 255
#endif
-#ifndef CONFIG_TIPC_SLAVE_NODES
-#define CONFIG_TIPC_SLAVE_NODES 0
-#endif
-
#ifndef CONFIG_TIPC_PORTS
#define CONFIG_TIPC_PORTS 8191
#endif
@@ -87,10 +65,7 @@ const char tipc_alphabet[] =
/* configurable TIPC parameters */
u32 tipc_own_addr;
-int tipc_max_zones;
-int tipc_max_clusters;
int tipc_max_nodes;
-int tipc_max_slaves;
int tipc_max_ports;
int tipc_max_subscriptions;
int tipc_max_publications;
@@ -98,16 +73,35 @@ int tipc_net_id;
int tipc_remote_management;
-int tipc_get_mode(void)
+/**
+ * tipc_buf_acquire - creates a TIPC message buffer
+ * @size: message size (including TIPC header)
+ *
+ * Returns a new buffer with data pointers set to the specified size.
+ *
+ * NOTE: Headroom is reserved to allow prepending of a data link header.
+ * There may also be unrequested tailroom present at the buffer's end.
+ */
+
+struct sk_buff *tipc_buf_acquire(u32 size)
{
- return tipc_mode;
+ struct sk_buff *skb;
+ unsigned int buf_size = (BUF_HEADROOM + size + 3) & ~3u;
+
+ skb = alloc_skb_fclone(buf_size, GFP_ATOMIC);
+ if (skb) {
+ skb_reserve(skb, BUF_HEADROOM);
+ skb_put(skb, size);
+ skb->next = NULL;
+ }
+ return skb;
}
/**
* tipc_core_stop_net - shut down TIPC networking sub-systems
*/
-void tipc_core_stop_net(void)
+static void tipc_core_stop_net(void)
{
tipc_eth_media_stop();
tipc_net_stop();
@@ -121,10 +115,11 @@ int tipc_core_start_net(unsigned long addr)
{
int res;
- if ((res = tipc_net_start(addr)) ||
- (res = tipc_eth_media_start())) {
+ res = tipc_net_start(addr);
+ if (!res)
+ res = tipc_eth_media_start();
+ if (res)
tipc_core_stop_net();
- }
return res;
}
@@ -132,7 +127,7 @@ int tipc_core_start_net(unsigned long addr)
* tipc_core_stop - switch TIPC from SINGLE NODE to NOT RUNNING mode
*/
-void tipc_core_stop(void)
+static void tipc_core_stop(void)
{
if (tipc_mode != TIPC_NODE_MODE)
return;
@@ -143,17 +138,17 @@ void tipc_core_stop(void)
tipc_handler_stop();
tipc_cfg_stop();
tipc_subscr_stop();
- tipc_reg_stop();
tipc_nametbl_stop();
tipc_ref_table_stop();
tipc_socket_stop();
+ tipc_log_resize(0);
}
/**
* tipc_core_start - switch TIPC from NOT RUNNING to SINGLE NODE mode
*/
-int tipc_core_start(void)
+static int tipc_core_start(void)
{
int res;
@@ -163,16 +158,22 @@ int tipc_core_start(void)
get_random_bytes(&tipc_random, sizeof(tipc_random));
tipc_mode = TIPC_NODE_MODE;
- if ((res = tipc_handler_start()) ||
- (res = tipc_ref_table_init(tipc_max_ports, tipc_random)) ||
- (res = tipc_reg_start()) ||
- (res = tipc_nametbl_init()) ||
- (res = tipc_k_signal((Handler)tipc_subscr_start, 0)) ||
- (res = tipc_k_signal((Handler)tipc_cfg_init, 0)) ||
- (res = tipc_netlink_start()) ||
- (res = tipc_socket_init())) {
+ res = tipc_handler_start();
+ if (!res)
+ res = tipc_ref_table_init(tipc_max_ports, tipc_random);
+ if (!res)
+ res = tipc_nametbl_init();
+ if (!res)
+ res = tipc_k_signal((Handler)tipc_subscr_start, 0);
+ if (!res)
+ res = tipc_k_signal((Handler)tipc_cfg_init, 0);
+ if (!res)
+ res = tipc_netlink_start();
+ if (!res)
+ res = tipc_socket_init();
+ if (res)
tipc_core_stop();
- }
+
return res;
}
@@ -181,7 +182,9 @@ static int __init tipc_init(void)
{
int res;
- tipc_log_resize(CONFIG_TIPC_LOG);
+ if (tipc_log_resize(CONFIG_TIPC_LOG) != 0)
+ warn("Unable to create log buffer\n");
+
info("Activated (version " TIPC_MOD_VER
" compiled " __DATE__ " " __TIME__ ")\n");
@@ -189,14 +192,12 @@ static int __init tipc_init(void)
tipc_remote_management = 1;
tipc_max_publications = 10000;
tipc_max_subscriptions = 2000;
- tipc_max_ports = delimit(CONFIG_TIPC_PORTS, 127, 65536);
- tipc_max_zones = delimit(CONFIG_TIPC_ZONES, 1, 255);
- tipc_max_clusters = delimit(CONFIG_TIPC_CLUSTERS, 1, 1);
- tipc_max_nodes = delimit(CONFIG_TIPC_NODES, 8, 2047);
- tipc_max_slaves = delimit(CONFIG_TIPC_SLAVE_NODES, 0, 2047);
+ tipc_max_ports = CONFIG_TIPC_PORTS;
+ tipc_max_nodes = CONFIG_TIPC_NODES;
tipc_net_id = 4711;
- if ((res = tipc_core_start()))
+ res = tipc_core_start();
+ if (res)
err("Unable to start in single node mode\n");
else
info("Started in single node mode\n");
@@ -208,7 +209,6 @@ static void __exit tipc_exit(void)
tipc_core_stop_net();
tipc_core_stop();
info("Deactivated\n");
- tipc_log_resize(0);
}
module_init(tipc_init);
@@ -217,60 +217,3 @@ module_exit(tipc_exit);
MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(TIPC_MOD_VER);
-
-/* Native TIPC API for kernel-space applications (see tipc.h) */
-
-EXPORT_SYMBOL(tipc_attach);
-EXPORT_SYMBOL(tipc_detach);
-EXPORT_SYMBOL(tipc_get_addr);
-EXPORT_SYMBOL(tipc_get_mode);
-EXPORT_SYMBOL(tipc_createport);
-EXPORT_SYMBOL(tipc_deleteport);
-EXPORT_SYMBOL(tipc_ownidentity);
-EXPORT_SYMBOL(tipc_portimportance);
-EXPORT_SYMBOL(tipc_set_portimportance);
-EXPORT_SYMBOL(tipc_portunreliable);
-EXPORT_SYMBOL(tipc_set_portunreliable);
-EXPORT_SYMBOL(tipc_portunreturnable);
-EXPORT_SYMBOL(tipc_set_portunreturnable);
-EXPORT_SYMBOL(tipc_publish);
-EXPORT_SYMBOL(tipc_withdraw);
-EXPORT_SYMBOL(tipc_connect2port);
-EXPORT_SYMBOL(tipc_disconnect);
-EXPORT_SYMBOL(tipc_shutdown);
-EXPORT_SYMBOL(tipc_isconnected);
-EXPORT_SYMBOL(tipc_peer);
-EXPORT_SYMBOL(tipc_ref_valid);
-EXPORT_SYMBOL(tipc_send);
-EXPORT_SYMBOL(tipc_send_buf);
-EXPORT_SYMBOL(tipc_send2name);
-EXPORT_SYMBOL(tipc_forward2name);
-EXPORT_SYMBOL(tipc_send_buf2name);
-EXPORT_SYMBOL(tipc_forward_buf2name);
-EXPORT_SYMBOL(tipc_send2port);
-EXPORT_SYMBOL(tipc_forward2port);
-EXPORT_SYMBOL(tipc_send_buf2port);
-EXPORT_SYMBOL(tipc_forward_buf2port);
-EXPORT_SYMBOL(tipc_multicast);
-/* EXPORT_SYMBOL(tipc_multicast_buf); not available yet */
-EXPORT_SYMBOL(tipc_ispublished);
-EXPORT_SYMBOL(tipc_available_nodes);
-
-/* TIPC API for external bearers (see tipc_bearer.h) */
-
-EXPORT_SYMBOL(tipc_block_bearer);
-EXPORT_SYMBOL(tipc_continue);
-EXPORT_SYMBOL(tipc_disable_bearer);
-EXPORT_SYMBOL(tipc_enable_bearer);
-EXPORT_SYMBOL(tipc_recv_msg);
-EXPORT_SYMBOL(tipc_register_media);
-
-/* TIPC API for external APIs (see tipc_port.h) */
-
-EXPORT_SYMBOL(tipc_createport_raw);
-EXPORT_SYMBOL(tipc_reject_msg);
-EXPORT_SYMBOL(tipc_send_buf_fast);
-EXPORT_SYMBOL(tipc_acknowledge);
-EXPORT_SYMBOL(tipc_get_port);
-EXPORT_SYMBOL(tipc_get_handle);
-
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-10-31 07:51:42 +0000