tipc: Add support for "-s" configuration option
Provide initial support for displaying overall TIPC status/statistics
information at runtime. Currently, only version info for the TIPC
kernel module is displayed.
Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/tipc_config.h b/include/linux/tipc_config.h
index 2bc6fa4..9cde86c 100644
--- a/include/linux/tipc_config.h
+++ b/include/linux/tipc_config.h
@@ -74,6 +74,7 @@
#define TIPC_CMD_SHOW_NAME_TABLE 0x0005 /* tx name_tbl_query, rx ultra_string */
#define TIPC_CMD_SHOW_PORTS 0x0006 /* tx none, rx ultra_string */
#define TIPC_CMD_SHOW_LINK_STATS 0x000B /* tx link_name, rx ultra_string */
+#define TIPC_CMD_SHOW_STATS 0x000F /* tx unsigned, rx ultra_string */
#if 0
#define TIPC_CMD_SHOW_PORT_STATS 0x0008 /* tx port_ref, rx ultra_string */
diff --git a/net/tipc/config.c b/net/tipc/config.c
index 7370241..961d1b0 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -246,13 +246,48 @@
default:
rv = tipc_cfg_cmd(msg, data, sz, (u32 *)&msg_sect[1].iov_len, orig);
}
- exit:
+exit:
rmsg.result_len = htonl(msg_sect[1].iov_len);
rmsg.retval = htonl(rv);
tipc_cfg_respond(msg_sect, 2u, orig);
}
#endif
+#define MAX_STATS_INFO 2000
+
+static struct sk_buff *tipc_show_stats(void)
+{
+ struct sk_buff *buf;
+ struct tlv_desc *rep_tlv;
+ struct print_buf pb;
+ int str_len;
+ u32 value;
+
+ if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
+ return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+
+ value = ntohl(*(u32 *)TLV_DATA(req_tlv_area));
+ if (value != 0)
+ return tipc_cfg_reply_error_string("unsupported argument");
+
+ buf = tipc_cfg_reply_alloc(TLV_SPACE(MAX_STATS_INFO));
+ if (buf == NULL)
+ return NULL;
+
+ rep_tlv = (struct tlv_desc *)buf->data;
+ tipc_printbuf_init(&pb, (char *)TLV_DATA(rep_tlv), MAX_STATS_INFO);
+
+ tipc_printf(&pb, "TIPC version " TIPC_MOD_VER "\n");
+
+ /* Use additional tipc_printf()'s to return more info ... */
+
+ str_len = tipc_printbuf_validate(&pb);
+ skb_put(buf, TLV_SPACE(str_len));
+ TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len);
+
+ return buf;
+}
+
static struct sk_buff *cfg_enable_bearer(void)
{
struct tipc_bearer_config *args;
@@ -536,6 +571,9 @@
case TIPC_CMD_DUMP_LOG:
rep_tlv_buf = tipc_log_dump();
break;
+ case TIPC_CMD_SHOW_STATS:
+ rep_tlv_buf = tipc_show_stats();
+ break;
case TIPC_CMD_SET_LINK_TOL:
case TIPC_CMD_SET_LINK_PRI:
case TIPC_CMD_SET_LINK_WINDOW:
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 4e84c84..b47d184 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -49,8 +49,6 @@
#include "config.h"
-#define TIPC_MOD_VER "2.0.0"
-
#ifndef CONFIG_TIPC_ZONES
#define CONFIG_TIPC_ZONES 3
#endif
diff --git a/net/tipc/core.h b/net/tipc/core.h
index c58a1d1..1e149f5 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -59,6 +59,9 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
+
+#define TIPC_MOD_VER "2.0.0"
+
/*
* TIPC sanity test macros
*/