Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1 | /* |
| 2 | * net/tipc/config.c: TIPC configuration management code |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 3 | * |
Per Liden | 593a5f2 | 2006-01-11 19:14:19 +0100 | [diff] [blame] | 4 | * Copyright (c) 2002-2006, Ericsson AB |
Allan Stephens | f831c96 | 2011-02-25 14:22:11 -0500 | [diff] [blame] | 5 | * Copyright (c) 2004-2007, 2010-2011, Wind River Systems |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 6 | * All rights reserved. |
| 7 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 8 | * Redistribution and use in source and binary forms, with or without |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 9 | * modification, are permitted provided that the following conditions are met: |
| 10 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 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. |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 19 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 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 |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 34 | * POSSIBILITY OF SUCH DAMAGE. |
| 35 | */ |
| 36 | |
| 37 | #include "core.h" |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 38 | #include "port.h" |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 39 | #include "name_table.h" |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 40 | #include "config.h" |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 41 | |
Allan Stephens | 7a488fd3 | 2010-12-31 18:59:20 +0000 | [diff] [blame] | 42 | static u32 config_port_ref; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 43 | |
Ingo Molnar | 34af946 | 2006-06-27 02:53:55 -0700 | [diff] [blame] | 44 | static DEFINE_SPINLOCK(config_lock); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 45 | |
| 46 | static const void *req_tlv_area; /* request message TLV area */ |
| 47 | static int req_tlv_space; /* request message TLV area size */ |
| 48 | static int rep_headroom; /* reply message headroom to use */ |
| 49 | |
| 50 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 51 | struct sk_buff *tipc_cfg_reply_alloc(int payload_size) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 52 | { |
| 53 | struct sk_buff *buf; |
| 54 | |
| 55 | buf = alloc_skb(rep_headroom + payload_size, GFP_ATOMIC); |
| 56 | if (buf) |
| 57 | skb_reserve(buf, rep_headroom); |
| 58 | return buf; |
| 59 | } |
| 60 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 61 | int tipc_cfg_append_tlv(struct sk_buff *buf, int tlv_type, |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 62 | void *tlv_data, int tlv_data_size) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 63 | { |
Arnaldo Carvalho de Melo | 27a884d | 2007-04-19 20:29:13 -0700 | [diff] [blame] | 64 | struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(buf); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 65 | int new_tlv_space = TLV_SPACE(tlv_data_size); |
| 66 | |
Allan Stephens | b29f142 | 2010-12-31 18:59:25 +0000 | [diff] [blame] | 67 | if (skb_tailroom(buf) < new_tlv_space) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 68 | return 0; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 69 | skb_put(buf, new_tlv_space); |
| 70 | tlv->tlv_type = htons(tlv_type); |
| 71 | tlv->tlv_len = htons(TLV_LENGTH(tlv_data_size)); |
| 72 | if (tlv_data_size && tlv_data) |
| 73 | memcpy(TLV_DATA(tlv), tlv_data, tlv_data_size); |
| 74 | return 1; |
| 75 | } |
| 76 | |
stephen hemminger | 31e3c3f | 2010-10-13 13:20:35 +0000 | [diff] [blame] | 77 | static struct sk_buff *tipc_cfg_reply_unsigned_type(u16 tlv_type, u32 value) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 78 | { |
| 79 | struct sk_buff *buf; |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 80 | __be32 value_net; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 81 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 82 | buf = tipc_cfg_reply_alloc(TLV_SPACE(sizeof(value))); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 83 | if (buf) { |
| 84 | value_net = htonl(value); |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 85 | tipc_cfg_append_tlv(buf, tlv_type, &value_net, |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 86 | sizeof(value_net)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 87 | } |
| 88 | return buf; |
| 89 | } |
| 90 | |
stephen hemminger | 31e3c3f | 2010-10-13 13:20:35 +0000 | [diff] [blame] | 91 | static struct sk_buff *tipc_cfg_reply_unsigned(u32 value) |
| 92 | { |
| 93 | return tipc_cfg_reply_unsigned_type(TIPC_TLV_UNSIGNED, value); |
| 94 | } |
| 95 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 96 | struct sk_buff *tipc_cfg_reply_string_type(u16 tlv_type, char *string) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 97 | { |
| 98 | struct sk_buff *buf; |
| 99 | int string_len = strlen(string) + 1; |
| 100 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 101 | buf = tipc_cfg_reply_alloc(TLV_SPACE(string_len)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 102 | if (buf) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 103 | tipc_cfg_append_tlv(buf, tlv_type, string, string_len); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 104 | return buf; |
| 105 | } |
| 106 | |
Allan Stephens | 107e7be | 2010-05-11 14:30:08 +0000 | [diff] [blame] | 107 | #define MAX_STATS_INFO 2000 |
| 108 | |
| 109 | static struct sk_buff *tipc_show_stats(void) |
| 110 | { |
| 111 | struct sk_buff *buf; |
| 112 | struct tlv_desc *rep_tlv; |
| 113 | struct print_buf pb; |
| 114 | int str_len; |
| 115 | u32 value; |
| 116 | |
| 117 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
| 118 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
| 119 | |
| 120 | value = ntohl(*(u32 *)TLV_DATA(req_tlv_area)); |
| 121 | if (value != 0) |
| 122 | return tipc_cfg_reply_error_string("unsupported argument"); |
| 123 | |
| 124 | buf = tipc_cfg_reply_alloc(TLV_SPACE(MAX_STATS_INFO)); |
| 125 | if (buf == NULL) |
| 126 | return NULL; |
| 127 | |
| 128 | rep_tlv = (struct tlv_desc *)buf->data; |
| 129 | tipc_printbuf_init(&pb, (char *)TLV_DATA(rep_tlv), MAX_STATS_INFO); |
| 130 | |
| 131 | tipc_printf(&pb, "TIPC version " TIPC_MOD_VER "\n"); |
| 132 | |
| 133 | /* Use additional tipc_printf()'s to return more info ... */ |
| 134 | |
| 135 | str_len = tipc_printbuf_validate(&pb); |
| 136 | skb_put(buf, TLV_SPACE(str_len)); |
| 137 | TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len); |
| 138 | |
| 139 | return buf; |
| 140 | } |
| 141 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 142 | static struct sk_buff *cfg_enable_bearer(void) |
| 143 | { |
| 144 | struct tipc_bearer_config *args; |
| 145 | |
| 146 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_BEARER_CONFIG)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 147 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 148 | |
| 149 | args = (struct tipc_bearer_config *)TLV_DATA(req_tlv_area); |
| 150 | if (tipc_enable_bearer(args->name, |
Allan Stephens | 50d3e63 | 2011-02-28 14:56:15 -0500 | [diff] [blame] | 151 | ntohl(args->disc_domain), |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 152 | ntohl(args->priority))) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 153 | return tipc_cfg_reply_error_string("unable to enable bearer"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 154 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 155 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 156 | } |
| 157 | |
| 158 | static struct sk_buff *cfg_disable_bearer(void) |
| 159 | { |
| 160 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_BEARER_NAME)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 161 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 162 | |
| 163 | if (tipc_disable_bearer((char *)TLV_DATA(req_tlv_area))) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 164 | return tipc_cfg_reply_error_string("unable to disable bearer"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 165 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 166 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 167 | } |
| 168 | |
| 169 | static struct sk_buff *cfg_set_own_addr(void) |
| 170 | { |
| 171 | u32 addr; |
| 172 | |
| 173 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_NET_ADDR)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 174 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 175 | |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 176 | addr = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 177 | if (addr == tipc_own_addr) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 178 | return tipc_cfg_reply_none(); |
| 179 | if (!tipc_addr_node_valid(addr)) |
| 180 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
| 181 | " (node address)"); |
Allan Stephens | b58343f | 2011-11-08 13:48:28 -0500 | [diff] [blame] | 182 | if (tipc_own_addr) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 183 | return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
| 184 | " (cannot change node address once assigned)"); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 185 | |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 186 | /* |
Allan Stephens | bfec73d | 2011-10-18 14:47:02 -0400 | [diff] [blame] | 187 | * Must temporarily release configuration spinlock while switching into |
| 188 | * networking mode as it calls tipc_eth_media_start(), which may sleep. |
| 189 | * Releasing the lock is harmless as other locally-issued configuration |
| 190 | * commands won't occur until this one completes, and remotely-issued |
| 191 | * configuration commands can't be received until a local configuration |
| 192 | * command to enable the first bearer is received and processed. |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 193 | */ |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 194 | |
| 195 | spin_unlock_bh(&config_lock); |
Allan Stephens | 0319437 | 2008-05-21 14:55:04 -0700 | [diff] [blame] | 196 | tipc_core_start_net(addr); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 197 | spin_lock_bh(&config_lock); |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 198 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 199 | } |
| 200 | |
| 201 | static struct sk_buff *cfg_set_remote_mng(void) |
| 202 | { |
| 203 | u32 value; |
| 204 | |
| 205 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 206 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 207 | |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 208 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 209 | tipc_remote_management = (value != 0); |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 210 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 211 | } |
| 212 | |
| 213 | static struct sk_buff *cfg_set_max_publications(void) |
| 214 | { |
| 215 | u32 value; |
| 216 | |
| 217 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 218 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 219 | |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 220 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Paul Gortmaker | 732efba | 2012-02-23 15:44:08 -0500 | [diff] [blame] | 221 | if (value < 1 || value > 65535) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 222 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
| 223 | " (max publications must be 1-65535)"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 224 | tipc_max_publications = value; |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 225 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | static struct sk_buff *cfg_set_max_subscriptions(void) |
| 229 | { |
| 230 | u32 value; |
| 231 | |
| 232 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 233 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 234 | |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 235 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Paul Gortmaker | 732efba | 2012-02-23 15:44:08 -0500 | [diff] [blame] | 236 | if (value < 1 || value > 65535) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 237 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
| 238 | " (max subscriptions must be 1-65535"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 239 | tipc_max_subscriptions = value; |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 240 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 241 | } |
| 242 | |
| 243 | static struct sk_buff *cfg_set_max_ports(void) |
| 244 | { |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 245 | u32 value; |
| 246 | |
| 247 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 248 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 249 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 250 | if (value == tipc_max_ports) |
| 251 | return tipc_cfg_reply_none(); |
Paul Gortmaker | 732efba | 2012-02-23 15:44:08 -0500 | [diff] [blame] | 252 | if (value < 127 || value > 65535) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 253 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
| 254 | " (max ports must be 127-65535)"); |
Allan Stephens | 077a26f | 2011-11-08 13:18:59 -0500 | [diff] [blame] | 255 | return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
| 256 | " (cannot change max ports while TIPC is active)"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 257 | } |
| 258 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 259 | static struct sk_buff *cfg_set_netid(void) |
| 260 | { |
| 261 | u32 value; |
| 262 | |
| 263 | if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 264 | return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); |
Al Viro | 3e6c8cd | 2006-11-08 00:19:09 -0800 | [diff] [blame] | 265 | value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 266 | if (value == tipc_net_id) |
| 267 | return tipc_cfg_reply_none(); |
Paul Gortmaker | 732efba | 2012-02-23 15:44:08 -0500 | [diff] [blame] | 268 | if (value < 1 || value > 9999) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 269 | return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE |
| 270 | " (network id must be 1-9999)"); |
Allan Stephens | b58343f | 2011-11-08 13:48:28 -0500 | [diff] [blame] | 271 | if (tipc_own_addr) |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 272 | return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
Allan Stephens | e100ae9 | 2006-06-25 23:51:08 -0700 | [diff] [blame] | 273 | " (cannot change network id once TIPC has joined a network)"); |
| 274 | tipc_net_id = value; |
| 275 | return tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 276 | } |
| 277 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 278 | struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area, |
| 279 | int request_space, int reply_headroom) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 280 | { |
| 281 | struct sk_buff *rep_tlv_buf; |
| 282 | |
| 283 | spin_lock_bh(&config_lock); |
| 284 | |
| 285 | /* Save request and reply details in a well-known location */ |
| 286 | |
| 287 | req_tlv_area = request_area; |
| 288 | req_tlv_space = request_space; |
| 289 | rep_headroom = reply_headroom; |
| 290 | |
| 291 | /* Check command authorization */ |
| 292 | |
Allan Stephens | 9d52ce4 | 2012-04-18 09:42:56 -0400 | [diff] [blame] | 293 | if (likely(in_own_node(orig_node))) { |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 294 | /* command is permitted */ |
| 295 | } else if (cmd >= 0x8000) { |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 296 | rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
| 297 | " (cannot be done remotely)"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 298 | goto exit; |
| 299 | } else if (!tipc_remote_management) { |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 300 | rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NO_REMOTE); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 301 | goto exit; |
Allan Stephens | 0e65967 | 2010-12-31 18:59:32 +0000 | [diff] [blame] | 302 | } else if (cmd >= 0x4000) { |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 303 | u32 domain = 0; |
| 304 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 305 | if ((tipc_nametbl_translate(TIPC_ZM_SRV, 0, &domain) == 0) || |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 306 | (domain != orig_node)) { |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 307 | rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_ZONE_MSTR); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 308 | goto exit; |
| 309 | } |
| 310 | } |
| 311 | |
| 312 | /* Call appropriate processing routine */ |
| 313 | |
| 314 | switch (cmd) { |
| 315 | case TIPC_CMD_NOOP: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 316 | rep_tlv_buf = tipc_cfg_reply_none(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 317 | break; |
| 318 | case TIPC_CMD_GET_NODES: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 319 | rep_tlv_buf = tipc_node_get_nodes(req_tlv_area, req_tlv_space); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 320 | break; |
| 321 | case TIPC_CMD_GET_LINKS: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 322 | rep_tlv_buf = tipc_node_get_links(req_tlv_area, req_tlv_space); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 323 | break; |
| 324 | case TIPC_CMD_SHOW_LINK_STATS: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 325 | rep_tlv_buf = tipc_link_cmd_show_stats(req_tlv_area, req_tlv_space); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 326 | break; |
| 327 | case TIPC_CMD_RESET_LINK_STATS: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 328 | rep_tlv_buf = tipc_link_cmd_reset_stats(req_tlv_area, req_tlv_space); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 329 | break; |
| 330 | case TIPC_CMD_SHOW_NAME_TABLE: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 331 | rep_tlv_buf = tipc_nametbl_get(req_tlv_area, req_tlv_space); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 332 | break; |
| 333 | case TIPC_CMD_GET_BEARER_NAMES: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 334 | rep_tlv_buf = tipc_bearer_get_names(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 335 | break; |
| 336 | case TIPC_CMD_GET_MEDIA_NAMES: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 337 | rep_tlv_buf = tipc_media_get_names(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 338 | break; |
| 339 | case TIPC_CMD_SHOW_PORTS: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 340 | rep_tlv_buf = tipc_port_get_ports(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 341 | break; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 342 | case TIPC_CMD_SET_LOG_SIZE: |
Allan Stephens | 025adbe | 2008-05-05 01:20:04 -0700 | [diff] [blame] | 343 | rep_tlv_buf = tipc_log_resize_cmd(req_tlv_area, req_tlv_space); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 344 | break; |
| 345 | case TIPC_CMD_DUMP_LOG: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 346 | rep_tlv_buf = tipc_log_dump(); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 347 | break; |
Allan Stephens | 107e7be | 2010-05-11 14:30:08 +0000 | [diff] [blame] | 348 | case TIPC_CMD_SHOW_STATS: |
| 349 | rep_tlv_buf = tipc_show_stats(); |
| 350 | break; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 351 | case TIPC_CMD_SET_LINK_TOL: |
| 352 | case TIPC_CMD_SET_LINK_PRI: |
| 353 | case TIPC_CMD_SET_LINK_WINDOW: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 354 | rep_tlv_buf = tipc_link_cmd_config(req_tlv_area, req_tlv_space, cmd); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 355 | break; |
| 356 | case TIPC_CMD_ENABLE_BEARER: |
| 357 | rep_tlv_buf = cfg_enable_bearer(); |
| 358 | break; |
| 359 | case TIPC_CMD_DISABLE_BEARER: |
| 360 | rep_tlv_buf = cfg_disable_bearer(); |
| 361 | break; |
| 362 | case TIPC_CMD_SET_NODE_ADDR: |
| 363 | rep_tlv_buf = cfg_set_own_addr(); |
| 364 | break; |
| 365 | case TIPC_CMD_SET_REMOTE_MNG: |
| 366 | rep_tlv_buf = cfg_set_remote_mng(); |
| 367 | break; |
| 368 | case TIPC_CMD_SET_MAX_PORTS: |
| 369 | rep_tlv_buf = cfg_set_max_ports(); |
| 370 | break; |
| 371 | case TIPC_CMD_SET_MAX_PUBL: |
| 372 | rep_tlv_buf = cfg_set_max_publications(); |
| 373 | break; |
| 374 | case TIPC_CMD_SET_MAX_SUBSCR: |
| 375 | rep_tlv_buf = cfg_set_max_subscriptions(); |
| 376 | break; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 377 | case TIPC_CMD_SET_NETID: |
| 378 | rep_tlv_buf = cfg_set_netid(); |
| 379 | break; |
| 380 | case TIPC_CMD_GET_REMOTE_MNG: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 381 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_remote_management); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 382 | break; |
| 383 | case TIPC_CMD_GET_MAX_PORTS: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 384 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_ports); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 385 | break; |
| 386 | case TIPC_CMD_GET_MAX_PUBL: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 387 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_publications); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 388 | break; |
| 389 | case TIPC_CMD_GET_MAX_SUBSCR: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 390 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_subscriptions); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 391 | break; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 392 | case TIPC_CMD_GET_NETID: |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 393 | rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_net_id); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 394 | break; |
Allan Stephens | 59f0c45 | 2008-05-21 14:52:30 -0700 | [diff] [blame] | 395 | case TIPC_CMD_NOT_NET_ADMIN: |
| 396 | rep_tlv_buf = |
| 397 | tipc_cfg_reply_error_string(TIPC_CFG_NOT_NET_ADMIN); |
| 398 | break; |
Allan Stephens | 51f98a8 | 2010-12-31 18:59:16 +0000 | [diff] [blame] | 399 | case TIPC_CMD_SET_MAX_ZONES: |
| 400 | case TIPC_CMD_GET_MAX_ZONES: |
Allan Stephens | 08c80e9 | 2010-12-31 18:59:17 +0000 | [diff] [blame] | 401 | case TIPC_CMD_SET_MAX_SLAVES: |
| 402 | case TIPC_CMD_GET_MAX_SLAVES: |
Allan Stephens | 8f92df6 | 2010-12-31 18:59:19 +0000 | [diff] [blame] | 403 | case TIPC_CMD_SET_MAX_CLUSTERS: |
| 404 | case TIPC_CMD_GET_MAX_CLUSTERS: |
Allan Stephens | f831c96 | 2011-02-25 14:22:11 -0500 | [diff] [blame] | 405 | case TIPC_CMD_SET_MAX_NODES: |
| 406 | case TIPC_CMD_GET_MAX_NODES: |
Allan Stephens | 51f98a8 | 2010-12-31 18:59:16 +0000 | [diff] [blame] | 407 | rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
| 408 | " (obsolete command)"); |
| 409 | break; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 410 | default: |
Allan Stephens | 53cfd1e | 2006-10-16 22:00:56 -0700 | [diff] [blame] | 411 | rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED |
| 412 | " (unknown command)"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 413 | break; |
| 414 | } |
| 415 | |
| 416 | /* Return reply buffer */ |
| 417 | exit: |
| 418 | spin_unlock_bh(&config_lock); |
| 419 | return rep_tlv_buf; |
| 420 | } |
| 421 | |
| 422 | static void cfg_named_msg_event(void *userdata, |
| 423 | u32 port_ref, |
| 424 | struct sk_buff **buf, |
| 425 | const unchar *msg, |
| 426 | u32 size, |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 427 | u32 importance, |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 428 | struct tipc_portid const *orig, |
| 429 | struct tipc_name_seq const *dest) |
| 430 | { |
| 431 | struct tipc_cfg_msg_hdr *req_hdr; |
| 432 | struct tipc_cfg_msg_hdr *rep_hdr; |
| 433 | struct sk_buff *rep_buf; |
| 434 | |
| 435 | /* Validate configuration message header (ignore invalid message) */ |
| 436 | |
| 437 | req_hdr = (struct tipc_cfg_msg_hdr *)msg; |
| 438 | if ((size < sizeof(*req_hdr)) || |
| 439 | (size != TCM_ALIGN(ntohl(req_hdr->tcm_len))) || |
| 440 | (ntohs(req_hdr->tcm_flags) != TCM_F_REQUEST)) { |
Allan Stephens | a10bd92 | 2006-06-25 23:52:17 -0700 | [diff] [blame] | 441 | warn("Invalid configuration message discarded\n"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 442 | return; |
| 443 | } |
| 444 | |
| 445 | /* Generate reply for request (if can't, return request) */ |
| 446 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 447 | rep_buf = tipc_cfg_do_cmd(orig->node, |
YOSHIFUJI Hideaki | c430728 | 2007-02-09 23:25:21 +0900 | [diff] [blame] | 448 | ntohs(req_hdr->tcm_type), |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 449 | msg + sizeof(*req_hdr), |
| 450 | size - sizeof(*req_hdr), |
| 451 | BUF_HEADROOM + MAX_H_SIZE + sizeof(*rep_hdr)); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 452 | if (rep_buf) { |
| 453 | skb_push(rep_buf, sizeof(*rep_hdr)); |
| 454 | rep_hdr = (struct tipc_cfg_msg_hdr *)rep_buf->data; |
| 455 | memcpy(rep_hdr, req_hdr, sizeof(*rep_hdr)); |
| 456 | rep_hdr->tcm_len = htonl(rep_buf->len); |
| 457 | rep_hdr->tcm_flags &= htons(~TCM_F_REQUEST); |
| 458 | } else { |
| 459 | rep_buf = *buf; |
| 460 | *buf = NULL; |
| 461 | } |
| 462 | |
| 463 | /* NEED TO ADD CODE TO HANDLE FAILED SEND (SUCH AS CONGESTION) */ |
| 464 | tipc_send_buf2port(port_ref, orig, rep_buf, rep_buf->len); |
| 465 | } |
| 466 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 467 | int tipc_cfg_init(void) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 468 | { |
| 469 | struct tipc_name_seq seq; |
| 470 | int res; |
| 471 | |
Allan Stephens | b0c1e92 | 2010-12-31 18:59:22 +0000 | [diff] [blame] | 472 | res = tipc_createport(NULL, TIPC_CRITICAL_IMPORTANCE, |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 473 | NULL, NULL, NULL, |
| 474 | NULL, cfg_named_msg_event, NULL, |
Allan Stephens | 7a488fd3 | 2010-12-31 18:59:20 +0000 | [diff] [blame] | 475 | NULL, &config_port_ref); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 476 | if (res) |
| 477 | goto failed; |
| 478 | |
| 479 | seq.type = TIPC_CFG_SRV; |
| 480 | seq.lower = seq.upper = tipc_own_addr; |
Allan Stephens | c422f1b | 2011-11-02 15:49:40 -0400 | [diff] [blame] | 481 | res = tipc_publish(config_port_ref, TIPC_ZONE_SCOPE, &seq); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 482 | if (res) |
| 483 | goto failed; |
| 484 | |
| 485 | return 0; |
| 486 | |
| 487 | failed: |
| 488 | err("Unable to create configuration service\n"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 489 | return res; |
| 490 | } |
| 491 | |
Allan Stephens | a2cfd45 | 2012-04-26 16:46:29 -0400 | [diff] [blame] | 492 | void tipc_cfg_reinit(void) |
| 493 | { |
| 494 | struct tipc_name_seq seq; |
| 495 | int res; |
| 496 | |
| 497 | seq.type = TIPC_CFG_SRV; |
| 498 | seq.lower = seq.upper = 0; |
| 499 | tipc_withdraw(config_port_ref, TIPC_ZONE_SCOPE, &seq); |
| 500 | |
| 501 | seq.lower = seq.upper = tipc_own_addr; |
| 502 | res = tipc_publish(config_port_ref, TIPC_ZONE_SCOPE, &seq); |
| 503 | if (res) |
| 504 | err("Unable to reinitialize configuration service\n"); |
| 505 | } |
| 506 | |
Per Liden | 4323add | 2006-01-18 00:38:21 +0100 | [diff] [blame] | 507 | void tipc_cfg_stop(void) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 508 | { |
Allan Stephens | eb323b0 | 2012-04-26 17:17:39 -0400 | [diff] [blame^] | 509 | tipc_deleteport(config_port_ref); |
| 510 | config_port_ref = 0; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 511 | } |