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Message-ID: <1423471819-23112-17-git-send-email-richard.alpe@ericsson.com>
Date: Mon, 9 Feb 2015 09:50:18 +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 16/17] tipc: nl compat add noop and remove legacy nl framework
From: Richard Alpe <richard.alpe@...csson.com>
Add TIPC_CMD_NOOP to compat layer and remove the old framework.
All legacy nl commands are now converted to the compat layer in
netlink_compat.c.
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/Makefile | 2 +-
net/tipc/bearer.c | 1 -
net/tipc/config.c | 157 ----------------------------------------------
net/tipc/config.h | 67 --------------------
net/tipc/core.c | 3 +-
net/tipc/link.c | 1 -
net/tipc/log.c | 1 -
net/tipc/name_table.c | 4 +-
net/tipc/net.c | 2 -
net/tipc/netlink_compat.c | 73 ++-------------------
net/tipc/node.c | 2 +-
net/tipc/socket.c | 1 -
12 files changed, 13 insertions(+), 301 deletions(-)
delete mode 100644 net/tipc/config.c
delete mode 100644 net/tipc/config.h
diff --git a/net/tipc/Makefile b/net/tipc/Makefile
index 69b82bb..6864b9d 100644
--- a/net/tipc/Makefile
+++ b/net/tipc/Makefile
@@ -4,7 +4,7 @@
obj-$(CONFIG_TIPC) := tipc.o
-tipc-y += addr.o bcast.o bearer.o config.o \
+tipc-y += addr.o bcast.o bearer.o \
core.o link.o discover.o msg.o \
name_distr.o subscr.o name_table.o net.o \
netlink.o netlink_compat.o node.o socket.o log.o eth_media.o \
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index c7e3b5d..858c5a6 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -36,7 +36,6 @@
#include <net/sock.h>
#include "core.h"
-#include "config.h"
#include "bearer.h"
#include "link.h"
#include "discover.h"
diff --git a/net/tipc/config.c b/net/tipc/config.c
deleted file mode 100644
index c2ad2ff..0000000
--- a/net/tipc/config.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/*
- * net/tipc/config.c: TIPC configuration management code
- *
- * Copyright (c) 2002-2006, Ericsson AB
- * Copyright (c) 2004-2007, 2010-2013, Wind River Systems
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the names of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "core.h"
-#include "socket.h"
-#include "name_table.h"
-#include "config.h"
-#include "server.h"
-
-#define REPLY_TRUNCATED "<truncated>\n"
-
-static const void *req_tlv_area; /* request message TLV area */
-static int req_tlv_space; /* request message TLV area size */
-static int rep_headroom; /* reply message headroom to use */
-
-struct sk_buff *tipc_cfg_reply_alloc(int payload_size)
-{
- struct sk_buff *buf;
-
- buf = alloc_skb(rep_headroom + payload_size, GFP_ATOMIC);
- if (buf)
- skb_reserve(buf, rep_headroom);
- return buf;
-}
-
-int tipc_cfg_append_tlv(struct sk_buff *buf, int tlv_type,
- void *tlv_data, int tlv_data_size)
-{
- struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(buf);
- int new_tlv_space = TLV_SPACE(tlv_data_size);
-
- if (skb_tailroom(buf) < new_tlv_space)
- return 0;
- skb_put(buf, new_tlv_space);
- tlv->tlv_type = htons(tlv_type);
- tlv->tlv_len = htons(TLV_LENGTH(tlv_data_size));
- if (tlv_data_size && tlv_data)
- memcpy(TLV_DATA(tlv), tlv_data, tlv_data_size);
- return 1;
-}
-
-struct sk_buff *tipc_cfg_reply_string_type(u16 tlv_type, char *string)
-{
- struct sk_buff *buf;
- int string_len = strlen(string) + 1;
-
- buf = tipc_cfg_reply_alloc(TLV_SPACE(string_len));
- if (buf)
- tipc_cfg_append_tlv(buf, tlv_type, string, string_len);
- return buf;
-}
-
-struct sk_buff *tipc_cfg_do_cmd(struct net *net, u32 orig_node, u16 cmd,
- const void *request_area, int request_space,
- int reply_headroom)
-{
- struct sk_buff *rep_tlv_buf;
-
- rtnl_lock();
-
- /* Save request and reply details in a well-known location */
- req_tlv_area = request_area;
- req_tlv_space = request_space;
- rep_headroom = reply_headroom;
-
- /* Check command authorization */
- if (likely(in_own_node(net, orig_node))) {
- /* command is permitted */
- } else {
- rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
- " (cannot be done remotely)");
- goto exit;
- }
-
- /* Call appropriate processing routine */
- switch (cmd) {
- case TIPC_CMD_NOOP:
- rep_tlv_buf = tipc_cfg_reply_none();
- break;
- case TIPC_CMD_NOT_NET_ADMIN:
- rep_tlv_buf =
- tipc_cfg_reply_error_string(TIPC_CFG_NOT_NET_ADMIN);
- break;
- case TIPC_CMD_SET_MAX_ZONES:
- case TIPC_CMD_GET_MAX_ZONES:
- case TIPC_CMD_SET_MAX_SLAVES:
- case TIPC_CMD_GET_MAX_SLAVES:
- case TIPC_CMD_SET_MAX_CLUSTERS:
- case TIPC_CMD_GET_MAX_CLUSTERS:
- case TIPC_CMD_SET_MAX_NODES:
- case TIPC_CMD_GET_MAX_NODES:
- case TIPC_CMD_SET_MAX_SUBSCR:
- case TIPC_CMD_GET_MAX_SUBSCR:
- case TIPC_CMD_SET_MAX_PUBL:
- case TIPC_CMD_GET_MAX_PUBL:
- case TIPC_CMD_SET_LOG_SIZE:
- case TIPC_CMD_SET_REMOTE_MNG:
- case TIPC_CMD_GET_REMOTE_MNG:
- case TIPC_CMD_DUMP_LOG:
- case TIPC_CMD_SET_MAX_PORTS:
- case TIPC_CMD_GET_MAX_PORTS:
- rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
- " (obsolete command)");
- break;
- default:
- rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
- " (unknown command)");
- break;
- }
-
- WARN_ON(rep_tlv_buf->len > TLV_SPACE(ULTRA_STRING_MAX_LEN));
-
- /* Append an error message if we cannot return all requested data */
- if (rep_tlv_buf->len == TLV_SPACE(ULTRA_STRING_MAX_LEN)) {
- if (*(rep_tlv_buf->data + ULTRA_STRING_MAX_LEN) != '\0')
- sprintf(rep_tlv_buf->data + rep_tlv_buf->len -
- sizeof(REPLY_TRUNCATED) - 1, REPLY_TRUNCATED);
- }
-
- /* Return reply buffer */
-exit:
- rtnl_unlock();
- return rep_tlv_buf;
-}
diff --git a/net/tipc/config.h b/net/tipc/config.h
deleted file mode 100644
index 9e9b575..0000000
--- a/net/tipc/config.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * net/tipc/config.h: Include file for TIPC configuration service code
- *
- * Copyright (c) 2003-2006, Ericsson AB
- * Copyright (c) 2005, Wind River Systems
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the names of the copyright holders nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef _TIPC_CONFIG_H
-#define _TIPC_CONFIG_H
-
-#include "link.h"
-
-#define ULTRA_STRING_MAX_LEN 32768
-
-struct sk_buff *tipc_cfg_reply_alloc(int payload_size);
-int tipc_cfg_append_tlv(struct sk_buff *buf, int tlv_type,
- void *tlv_data, int tlv_data_size);
-struct sk_buff *tipc_cfg_reply_string_type(u16 tlv_type, char *string);
-
-static inline struct sk_buff *tipc_cfg_reply_none(void)
-{
- return tipc_cfg_reply_alloc(0);
-}
-
-static inline struct sk_buff *tipc_cfg_reply_error_string(char *string)
-{
- return tipc_cfg_reply_string_type(TIPC_TLV_ERROR_STRING, string);
-}
-
-static inline struct sk_buff *tipc_cfg_reply_ultra_string(char *string)
-{
- return tipc_cfg_reply_string_type(TIPC_TLV_ULTRA_STRING, string);
-}
-
-struct sk_buff *tipc_cfg_do_cmd(struct net *net, u32 orig_node, u16 cmd,
- const void *req_tlv_area, int req_tlv_space,
- int headroom);
-#endif
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 2d06d1f..935205e 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -39,7 +39,8 @@
#include "core.h"
#include "name_table.h"
#include "subscr.h"
-#include "config.h"
+#include "bearer.h"
+#include "net.h"
#include "socket.h"
#include <linux/module.h>
diff --git a/net/tipc/link.c b/net/tipc/link.c
index dfe6f4d..a4cf364 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -40,7 +40,6 @@
#include "socket.h"
#include "name_distr.h"
#include "discover.h"
-#include "config.h"
#include "netlink.h"
#include <linux/pkt_sched.h>
diff --git a/net/tipc/log.c b/net/tipc/log.c
index abef644..b186af0 100644
--- a/net/tipc/log.c
+++ b/net/tipc/log.c
@@ -35,7 +35,6 @@
*/
#include "core.h"
-#include "config.h"
/**
* tipc_snprintf - append formatted output to print buffer
diff --git a/net/tipc/name_table.c b/net/tipc/name_table.c
index c8eaa2a..105ba7ad 100644
--- a/net/tipc/name_table.c
+++ b/net/tipc/name_table.c
@@ -36,11 +36,13 @@
#include <net/sock.h>
#include "core.h"
-#include "config.h"
+#include "netlink.h"
#include "name_table.h"
#include "name_distr.h"
#include "subscr.h"
#include "bcast.h"
+#include "addr.h"
+#include <net/genetlink.h>
#define TIPC_NAMETBL_SIZE 1024 /* must be a power of 2 */
diff --git a/net/tipc/net.c b/net/tipc/net.c
index e4028f9..a54f3cb 100644
--- a/net/tipc/net.c
+++ b/net/tipc/net.c
@@ -40,8 +40,6 @@
#include "subscr.h"
#include "socket.h"
#include "node.h"
-#include "config.h"
-#include "bcast.h"
static const struct nla_policy tipc_nl_net_policy[TIPC_NLA_NET_MAX + 1] = {
[TIPC_NLA_NET_UNSPEC] = { .type = NLA_UNSPEC },
diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c
index cb9086d..ce9121e 100644
--- a/net/tipc/netlink_compat.c
+++ b/net/tipc/netlink_compat.c
@@ -32,7 +32,6 @@
*/
#include "core.h"
-#include "config.h"
#include "bearer.h"
#include "link.h"
#include "name_table.h"
@@ -909,6 +908,11 @@ static int tipc_nl_compat_handle(struct tipc_nl_compat_msg *msg)
memset(&doit, 0, sizeof(doit));
switch (msg->cmd) {
+ case TIPC_CMD_NOOP:
+ msg->rep = tipc_tlv_alloc(0);
+ if (!msg->rep)
+ return -ENOMEM;
+ return 0;
case TIPC_CMD_GET_BEARER_NAMES:
msg->rep_size = MAX_BEARERS * TLV_SPACE(TIPC_MAX_BEARER_NAME);
dump.dumpit = tipc_nl_bearer_dump;
@@ -1044,71 +1048,6 @@ send:
return err;
}
-static int handle_cmd(struct sk_buff *skb, struct genl_info *info)
-{
- struct net *net = genl_info_net(info);
- struct sk_buff *rep_buf;
- struct nlmsghdr *rep_nlh;
- struct nlmsghdr *req_nlh = info->nlhdr;
- struct tipc_genlmsghdr *req_userhdr = info->userhdr;
- int hdr_space = nlmsg_total_size(GENL_HDRLEN + TIPC_GENL_HDRLEN);
- u16 cmd;
-
- if ((req_userhdr->cmd & 0xC000) &&
- (!netlink_net_capable(skb, CAP_NET_ADMIN)))
- cmd = TIPC_CMD_NOT_NET_ADMIN;
- else
- cmd = req_userhdr->cmd;
-
- rep_buf = tipc_cfg_do_cmd(net, req_userhdr->dest, cmd,
- nlmsg_data(req_nlh) + GENL_HDRLEN +
- TIPC_GENL_HDRLEN,
- nlmsg_attrlen(req_nlh, GENL_HDRLEN +
- TIPC_GENL_HDRLEN), hdr_space);
-
- if (rep_buf) {
- skb_push(rep_buf, hdr_space);
- rep_nlh = nlmsg_hdr(rep_buf);
- memcpy(rep_nlh, req_nlh, hdr_space);
- rep_nlh->nlmsg_len = rep_buf->len;
- genlmsg_unicast(net, rep_buf, NETLINK_CB(skb).portid);
- }
-
- return 0;
-}
-
-/* Temporary function to keep functionality throughout the patchset
- * without having to mess with the global variables and other trickery
- * of the old API.
- */
-static int tipc_nl_compat_tmp_wrap(struct sk_buff *skb, struct genl_info *info)
-{
- struct tipc_genlmsghdr *req = info->userhdr;
-
- switch (req->cmd) {
- case TIPC_CMD_GET_BEARER_NAMES:
- case TIPC_CMD_ENABLE_BEARER:
- case TIPC_CMD_DISABLE_BEARER:
- case TIPC_CMD_SHOW_LINK_STATS:
- case TIPC_CMD_GET_LINKS:
- case TIPC_CMD_SET_LINK_TOL:
- case TIPC_CMD_SET_LINK_PRI:
- case TIPC_CMD_SET_LINK_WINDOW:
- case TIPC_CMD_RESET_LINK_STATS:
- case TIPC_CMD_SHOW_NAME_TABLE:
- case TIPC_CMD_SHOW_PORTS:
- case TIPC_CMD_GET_MEDIA_NAMES:
- case TIPC_CMD_GET_NODES:
- case TIPC_CMD_SET_NODE_ADDR:
- case TIPC_CMD_SET_NETID:
- case TIPC_CMD_GET_NETID:
- case TIPC_CMD_SHOW_STATS:
- return tipc_nl_compat_recv(skb, info);
- }
-
- return handle_cmd(skb, info);
-}
-
static struct genl_family tipc_genl_compat_family = {
.id = GENL_ID_GENERATE,
.name = TIPC_GENL_NAME,
@@ -1121,7 +1060,7 @@ static struct genl_family tipc_genl_compat_family = {
static struct genl_ops tipc_genl_compat_ops[] = {
{
.cmd = TIPC_GENL_CMD,
- .doit = tipc_nl_compat_tmp_wrap,
+ .doit = tipc_nl_compat_recv,
},
};
diff --git a/net/tipc/node.c b/net/tipc/node.c
index ddaa2bb..86152de 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -35,7 +35,7 @@
*/
#include "core.h"
-#include "config.h"
+#include "link.h"
#include "node.h"
#include "name_distr.h"
#include "socket.h"
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index e77d738..f73e975 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -40,7 +40,6 @@
#include "name_table.h"
#include "node.h"
#include "link.h"
-#include "config.h"
#include "name_distr.h"
#include "socket.h"
--
2.1.4
--
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