3 * Copyright 2009 Roy Marples <roy@marples.name>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 #include "libdhcpcd.h"
35 #define HIST_MAX 10 /* Max history per ssid/bssid */
38 dhcpcd_wi_history_clear(DHCPCD_CONNECTION *con)
42 while (con->wi_history) {
43 h = con->wi_history->next;
44 free(con->wi_history);
50 dhcpcd_wi_scans_free(DHCPCD_WI_SCAN *wis)
61 static DHCPCD_WI_SCAN *
62 dhcpcd_scanresult_new(DHCPCD_CONNECTION *con, DBusMessageIter *array)
64 DBusMessageIter dict, entry, var;
70 wis = calloc(1, sizeof(*wis));
72 dhcpcd_error_set(con, NULL, errno);
76 dbus_message_iter_recurse(array, &dict);
78 dbus_message_iter_get_arg_type(&dict) == DBUS_TYPE_DICT_ENTRY;
79 dbus_message_iter_next(&dict))
81 dbus_message_iter_recurse(&dict, &entry);
82 if (!dhcpcd_iter_get(con, &entry, DBUS_TYPE_STRING, &s))
84 if (dbus_message_iter_get_arg_type(&entry) !=
87 dbus_message_iter_recurse(&entry, &var);
88 if (strcmp(s, "BSSID") == 0) {
89 if (!dhcpcd_iter_get(con, &var, DBUS_TYPE_STRING, &s))
91 strlcpy(wis->bssid, s, sizeof(wis->bssid));
92 } else if (strcmp(s, "Frequency") == 0) {
93 if (!dhcpcd_iter_get(con, &var, DBUS_TYPE_INT32, &i32))
96 } else if (strcmp(s, "Quality") == 0) {
97 if (!dhcpcd_iter_get(con, &var, DBUS_TYPE_INT32, &i32))
99 wis->quality.value = i32;
100 } else if (strcmp(s, "Noise") == 0) {
101 if (!dhcpcd_iter_get(con, &var, DBUS_TYPE_INT32, &i32))
103 wis->noise.value = i32;
104 } else if (strcmp(s, "Level") == 0) {
105 if (!dhcpcd_iter_get(con, &var, DBUS_TYPE_INT32, &i32))
107 wis->level.value = i32;
108 } else if (strcmp(s, "Flags") == 0) {
109 if (!dhcpcd_iter_get(con, &var, DBUS_TYPE_STRING, &s))
111 strlcpy(wis->flags, s, sizeof(wis->flags));
112 } else if (strcmp(s, "SSID") == 0) {
113 if (!dhcpcd_iter_get(con, &var, DBUS_TYPE_STRING, &s))
115 strlcpy(wis->ssid, s, sizeof(wis->ssid));
118 if (dbus_message_iter_get_arg_type(&dict) != DBUS_TYPE_INVALID) {
119 if (con->errors == errors)
120 dhcpcd_error_set(con, NULL, EINVAL);
128 dhcpcd_wi_scans(DHCPCD_CONNECTION *con, DHCPCD_IF *i)
131 DBusMessageIter args, array;
132 DHCPCD_WI_SCAN *wis, *scans, *l;
133 DHCPCD_WI_HIST *h, *hl;
136 msg = dhcpcd_message_reply(con, "ScanResults", i->ifname);
139 if (!dbus_message_iter_init(msg, &args) ||
140 dbus_message_iter_get_arg_type(&args) != DBUS_TYPE_ARRAY)
142 dhcpcd_error_set(con, NULL, EINVAL);
147 errors = con->errors;
148 dbus_message_iter_recurse(&args, &array);
150 dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_ARRAY;
151 dbus_message_iter_next(&array))
153 wis = dhcpcd_scanresult_new(con, &array);
158 wis->quality.average = wis->quality.value;
159 wis->noise.average = wis->noise.value;
160 wis->level.average = wis->level.value;
161 for (h = con->wi_history; h; h = h->next) {
162 if (strcmp(h->ifname, i->ifname) == 0 &&
163 strcmp(h->bssid, wis->bssid) == 0)
165 wis->quality.average += h->quality;
166 wis->noise.average += h->noise;
167 wis->level.average += h->level;
168 if (++nh == HIST_MAX) {
177 wis->quality.average /= nh;
178 wis->noise.average /= nh;
179 wis->level.average /= nh;
181 h = malloc(sizeof(*h));
183 strlcpy(h->ifname, i->ifname, sizeof(h->ifname));
184 strlcpy(h->bssid, wis->bssid, sizeof(h->bssid));
185 h->quality = wis->quality.value;
186 h->noise = wis->noise.value;
187 h->level = wis->level.value;
188 h->next = con->wi_history;
198 if (dbus_message_iter_get_arg_type(&array) != DBUS_TYPE_INVALID) {
199 if (con->errors == errors)
200 dhcpcd_error_set(con, NULL, EINVAL);
201 dhcpcd_wi_scans_free(scans);
204 dbus_message_unref(msg);
209 dhcpcd_wpa_find_network(DHCPCD_CONNECTION *con, DHCPCD_IF *i, const char *ssid)
212 DBusMessageIter args, array, entry;
217 msg = dhcpcd_message_reply(con, "ListNetworks", i->ifname);
220 if (!dbus_message_iter_init(msg, &args)) {
221 dhcpcd_error_set(con, NULL, EINVAL);
225 errors = con->errors;
227 dbus_message_iter_get_arg_type(&args) == DBUS_TYPE_ARRAY;
228 dbus_message_iter_next(&args))
230 dbus_message_iter_recurse(&args, &array);
232 dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_STRUCT;
233 dbus_message_iter_next(&array))
235 dbus_message_iter_recurse(&array, &entry);
236 if (!dhcpcd_iter_get(con, &entry,
237 DBUS_TYPE_INT32, &id) ||
238 !dhcpcd_iter_get(con, &entry,
239 DBUS_TYPE_STRING, &s))
241 if (strcmp(s, ssid) == 0) {
242 dbus_message_unref(msg);
247 if (dbus_message_iter_get_arg_type(&args) != DBUS_TYPE_INVALID &&
248 con->errors == errors)
249 dhcpcd_error_set(con, NULL, EINVAL);
250 dbus_message_unref(msg);
255 dhcpcd_wpa_add_network(DHCPCD_CONNECTION *con, DHCPCD_IF *i)
258 DBusMessageIter args;
262 msg = dhcpcd_message_reply(con, "AddNetwork", i->ifname);
266 if (dbus_message_iter_init(msg, &args)) {
267 if (dhcpcd_iter_get(con, &args, DBUS_TYPE_INT32, &id))
270 dhcpcd_error_set(con, NULL, EINVAL);
271 dbus_message_unref(msg);
276 dhcpcd_wpa_set_network(DHCPCD_CONNECTION *con, DHCPCD_IF *i, int id,
277 const char *opt, const char *val)
279 DBusMessage *msg, *reply;
280 DBusMessageIter args;
284 msg = dbus_message_new_method_call(DHCPCD_SERVICE, DHCPCD_PATH,
285 DHCPCD_SERVICE, "SetNetwork");
287 dhcpcd_error_set(con, 0, errno);
290 dbus_message_iter_init_append(msg, &args);
292 dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &ifname);
293 dbus_message_iter_append_basic(&args, DBUS_TYPE_INT32, &id);
294 dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &opt);
295 dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &val);
296 reply = dhcpcd_send_reply(con, msg);
297 dbus_message_unref(msg);
301 dbus_message_unref(reply);
308 dhcpcd_wpa_find_network_new(DHCPCD_CONNECTION *con, DHCPCD_IF *i,
316 len = strlen(ssid) + 3;
319 dhcpcd_error_set(con, 0, errno);
322 errors = con->errors;
323 id = dhcpcd_wpa_find_network(con, i, ssid);
324 if (id != -1 || con->errors != errors) {
328 id = dhcpcd_wpa_add_network(con, i);
333 snprintf(q, len, "\"%s\"", ssid);
334 retval = dhcpcd_wpa_set_network(con, i, id, "ssid", q);
340 dhcpcd_wpa_command(DHCPCD_CONNECTION *con, DHCPCD_IF *i,
341 const char *cmd, int id)
343 DBusMessage *msg, *reply;
344 DBusMessageIter args;
348 msg = dbus_message_new_method_call(DHCPCD_SERVICE, DHCPCD_PATH,
349 DHCPCD_SERVICE, cmd);
351 dhcpcd_error_set(con, 0, errno);
354 dbus_message_iter_init_append(msg, &args);
356 dbus_message_iter_append_basic(&args, DBUS_TYPE_STRING, &ifname);
358 dbus_message_iter_append_basic(&args, DBUS_TYPE_INT32, &id);
359 reply = dhcpcd_send_reply(con, msg);
360 dbus_message_unref(msg);
364 dbus_message_unref(reply);