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-rw-r--r--net/tipc/config.c332
1 files changed, 0 insertions, 332 deletions
diff --git a/net/tipc/config.c b/net/tipc/config.c
deleted file mode 100644
index 6873360cda53..000000000000
--- a/net/tipc/config.c
+++ /dev/null
@@ -1,332 +0,0 @@
1/*
2 * net/tipc/config.c: TIPC configuration management code
3 *
4 * Copyright (c) 2002-2006, Ericsson AB
5 * Copyright (c) 2004-2007, 2010-2013, Wind River Systems
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the names of the copyright holders nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * Alternatively, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") version 2 as published by the Free
22 * Software Foundation.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37#include "core.h"
38#include "socket.h"
39#include "name_table.h"
40#include "config.h"
41#include "server.h"
42
43#define REPLY_TRUNCATED "<truncated>\n"
44
45static const void *req_tlv_area; /* request message TLV area */
46static int req_tlv_space; /* request message TLV area size */
47static int rep_headroom; /* reply message headroom to use */
48
49struct sk_buff *tipc_cfg_reply_alloc(int payload_size)
50{
51 struct sk_buff *buf;
52
53 buf = alloc_skb(rep_headroom + payload_size, GFP_ATOMIC);
54 if (buf)
55 skb_reserve(buf, rep_headroom);
56 return buf;
57}
58
59int tipc_cfg_append_tlv(struct sk_buff *buf, int tlv_type,
60 void *tlv_data, int tlv_data_size)
61{
62 struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(buf);
63 int new_tlv_space = TLV_SPACE(tlv_data_size);
64
65 if (skb_tailroom(buf) < new_tlv_space)
66 return 0;
67 skb_put(buf, new_tlv_space);
68 tlv->tlv_type = htons(tlv_type);
69 tlv->tlv_len = htons(TLV_LENGTH(tlv_data_size));
70 if (tlv_data_size && tlv_data)
71 memcpy(TLV_DATA(tlv), tlv_data, tlv_data_size);
72 return 1;
73}
74
75static struct sk_buff *tipc_cfg_reply_unsigned_type(u16 tlv_type, u32 value)
76{
77 struct sk_buff *buf;
78 __be32 value_net;
79
80 buf = tipc_cfg_reply_alloc(TLV_SPACE(sizeof(value)));
81 if (buf) {
82 value_net = htonl(value);
83 tipc_cfg_append_tlv(buf, tlv_type, &value_net,
84 sizeof(value_net));
85 }
86 return buf;
87}
88
89static struct sk_buff *tipc_cfg_reply_unsigned(u32 value)
90{
91 return tipc_cfg_reply_unsigned_type(TIPC_TLV_UNSIGNED, value);
92}
93
94struct sk_buff *tipc_cfg_reply_string_type(u16 tlv_type, char *string)
95{
96 struct sk_buff *buf;
97 int string_len = strlen(string) + 1;
98
99 buf = tipc_cfg_reply_alloc(TLV_SPACE(string_len));
100 if (buf)
101 tipc_cfg_append_tlv(buf, tlv_type, string, string_len);
102 return buf;
103}
104
105static struct sk_buff *tipc_show_stats(void)
106{
107 struct sk_buff *buf;
108 struct tlv_desc *rep_tlv;
109 char *pb;
110 int pb_len;
111 int str_len;
112 u32 value;
113
114 if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
115 return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
116
117 value = ntohl(*(u32 *)TLV_DATA(req_tlv_area));
118 if (value != 0)
119 return tipc_cfg_reply_error_string("unsupported argument");
120
121 buf = tipc_cfg_reply_alloc(TLV_SPACE(ULTRA_STRING_MAX_LEN));
122 if (buf == NULL)
123 return NULL;
124
125 rep_tlv = (struct tlv_desc *)buf->data;
126 pb = TLV_DATA(rep_tlv);
127 pb_len = ULTRA_STRING_MAX_LEN;
128
129 str_len = tipc_snprintf(pb, pb_len, "TIPC version " TIPC_MOD_VER "\n");
130 str_len += 1; /* for "\0" */
131 skb_put(buf, TLV_SPACE(str_len));
132 TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len);
133
134 return buf;
135}
136
137static struct sk_buff *cfg_enable_bearer(struct net *net)
138{
139 struct tipc_bearer_config *args;
140
141 if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_BEARER_CONFIG))
142 return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
143
144 args = (struct tipc_bearer_config *)TLV_DATA(req_tlv_area);
145 if (tipc_enable_bearer(net, args->name,
146 ntohl(args->disc_domain),
147 ntohl(args->priority)))
148 return tipc_cfg_reply_error_string("unable to enable bearer");
149
150 return tipc_cfg_reply_none();
151}
152
153static struct sk_buff *cfg_disable_bearer(struct net *net)
154{
155 if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_BEARER_NAME))
156 return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
157
158 if (tipc_disable_bearer(net, (char *)TLV_DATA(req_tlv_area)))
159 return tipc_cfg_reply_error_string("unable to disable bearer");
160
161 return tipc_cfg_reply_none();
162}
163
164static struct sk_buff *cfg_set_own_addr(struct net *net)
165{
166 struct tipc_net *tn = net_generic(net, tipc_net_id);
167 u32 addr;
168
169 if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_NET_ADDR))
170 return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
171
172 addr = ntohl(*(__be32 *)TLV_DATA(req_tlv_area));
173 if (addr == tn->own_addr)
174 return tipc_cfg_reply_none();
175 if (!tipc_addr_node_valid(addr))
176 return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
177 " (node address)");
178 if (tn->own_addr)
179 return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
180 " (cannot change node address once assigned)");
181 if (!tipc_net_start(net, addr))
182 return tipc_cfg_reply_none();
183
184 return tipc_cfg_reply_error_string("cannot change to network mode");
185}
186
187static struct sk_buff *cfg_set_netid(struct net *net)
188{
189 struct tipc_net *tn = net_generic(net, tipc_net_id);
190 u32 value;
191
192 if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
193 return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
194 value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area));
195 if (value == tn->net_id)
196 return tipc_cfg_reply_none();
197 if (value < 1 || value > 9999)
198 return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
199 " (network id must be 1-9999)");
200 if (tn->own_addr)
201 return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
202 " (cannot change network id once TIPC has joined a network)");
203 tn->net_id = value;
204 return tipc_cfg_reply_none();
205}
206
207struct sk_buff *tipc_cfg_do_cmd(struct net *net, u32 orig_node, u16 cmd,
208 const void *request_area, int request_space,
209 int reply_headroom)
210{
211 struct sk_buff *rep_tlv_buf;
212 struct tipc_net *tn = net_generic(net, tipc_net_id);
213
214 rtnl_lock();
215
216 /* Save request and reply details in a well-known location */
217 req_tlv_area = request_area;
218 req_tlv_space = request_space;
219 rep_headroom = reply_headroom;
220
221 /* Check command authorization */
222 if (likely(in_own_node(net, orig_node))) {
223 /* command is permitted */
224 } else {
225 rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
226 " (cannot be done remotely)");
227 goto exit;
228 }
229
230 /* Call appropriate processing routine */
231 switch (cmd) {
232 case TIPC_CMD_NOOP:
233 rep_tlv_buf = tipc_cfg_reply_none();
234 break;
235 case TIPC_CMD_GET_NODES:
236 rep_tlv_buf = tipc_node_get_nodes(net, req_tlv_area,
237 req_tlv_space);
238 break;
239 case TIPC_CMD_GET_LINKS:
240 rep_tlv_buf = tipc_node_get_links(net, req_tlv_area,
241 req_tlv_space);
242 break;
243 case TIPC_CMD_SHOW_LINK_STATS:
244 rep_tlv_buf = tipc_link_cmd_show_stats(net, req_tlv_area,
245 req_tlv_space);
246 break;
247 case TIPC_CMD_RESET_LINK_STATS:
248 rep_tlv_buf = tipc_link_cmd_reset_stats(net, req_tlv_area,
249 req_tlv_space);
250 break;
251 case TIPC_CMD_SHOW_NAME_TABLE:
252 rep_tlv_buf = tipc_nametbl_get(net, req_tlv_area,
253 req_tlv_space);
254 break;
255 case TIPC_CMD_GET_BEARER_NAMES:
256 rep_tlv_buf = tipc_bearer_get_names(net);
257 break;
258 case TIPC_CMD_GET_MEDIA_NAMES:
259 rep_tlv_buf = tipc_media_get_names();
260 break;
261 case TIPC_CMD_SHOW_PORTS:
262 rep_tlv_buf = tipc_sk_socks_show(net);
263 break;
264 case TIPC_CMD_SHOW_STATS:
265 rep_tlv_buf = tipc_show_stats();
266 break;
267 case TIPC_CMD_SET_LINK_TOL:
268 case TIPC_CMD_SET_LINK_PRI:
269 case TIPC_CMD_SET_LINK_WINDOW:
270 rep_tlv_buf = tipc_link_cmd_config(net, req_tlv_area,
271 req_tlv_space, cmd);
272 break;
273 case TIPC_CMD_ENABLE_BEARER:
274 rep_tlv_buf = cfg_enable_bearer(net);
275 break;
276 case TIPC_CMD_DISABLE_BEARER:
277 rep_tlv_buf = cfg_disable_bearer(net);
278 break;
279 case TIPC_CMD_SET_NODE_ADDR:
280 rep_tlv_buf = cfg_set_own_addr(net);
281 break;
282 case TIPC_CMD_SET_NETID:
283 rep_tlv_buf = cfg_set_netid(net);
284 break;
285 case TIPC_CMD_GET_NETID:
286 rep_tlv_buf = tipc_cfg_reply_unsigned(tn->net_id);
287 break;
288 case TIPC_CMD_NOT_NET_ADMIN:
289 rep_tlv_buf =
290 tipc_cfg_reply_error_string(TIPC_CFG_NOT_NET_ADMIN);
291 break;
292 case TIPC_CMD_SET_MAX_ZONES:
293 case TIPC_CMD_GET_MAX_ZONES:
294 case TIPC_CMD_SET_MAX_SLAVES:
295 case TIPC_CMD_GET_MAX_SLAVES:
296 case TIPC_CMD_SET_MAX_CLUSTERS:
297 case TIPC_CMD_GET_MAX_CLUSTERS:
298 case TIPC_CMD_SET_MAX_NODES:
299 case TIPC_CMD_GET_MAX_NODES:
300 case TIPC_CMD_SET_MAX_SUBSCR:
301 case TIPC_CMD_GET_MAX_SUBSCR:
302 case TIPC_CMD_SET_MAX_PUBL:
303 case TIPC_CMD_GET_MAX_PUBL:
304 case TIPC_CMD_SET_LOG_SIZE:
305 case TIPC_CMD_SET_REMOTE_MNG:
306 case TIPC_CMD_GET_REMOTE_MNG:
307 case TIPC_CMD_DUMP_LOG:
308 case TIPC_CMD_SET_MAX_PORTS:
309 case TIPC_CMD_GET_MAX_PORTS:
310 rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
311 " (obsolete command)");
312 break;
313 default:
314 rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
315 " (unknown command)");
316 break;
317 }
318
319 WARN_ON(rep_tlv_buf->len > TLV_SPACE(ULTRA_STRING_MAX_LEN));
320
321 /* Append an error message if we cannot return all requested data */
322 if (rep_tlv_buf->len == TLV_SPACE(ULTRA_STRING_MAX_LEN)) {
323 if (*(rep_tlv_buf->data + ULTRA_STRING_MAX_LEN) != '\0')
324 sprintf(rep_tlv_buf->data + rep_tlv_buf->len -
325 sizeof(REPLY_TRUNCATED) - 1, REPLY_TRUNCATED);
326 }
327
328 /* Return reply buffer */
329exit:
330 rtnl_unlock();
331 return rep_tlv_buf;
332}
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