mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager
synced 2024-07-22 10:46:59 +00:00
libnm-util: add nm_utils_wifi_* functions to handle frequencies/channels
This commit is contained in:
Jiří Klimeš
parent
6810ef1422
commit
12d26643e9
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@ -59,7 +59,7 @@ libnm_util_la_SOURCES= \
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libnm_util_la_LIBADD = $(GLIB_LIBS) $(DBUS_LIBS) $(UUID_LIBS)
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libnm_util_la_LDFLAGS = -Wl,--version-script=$(srcdir)/libnm-util.ver \
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-version-info "4:4:3"
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-version-info "5:0:4"
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if WITH_GNUTLS
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libnm_util_la_SOURCES += crypto_gnutls.c
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@ -365,6 +365,10 @@ global:
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nm_utils_ssid_to_utf8;
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nm_utils_uuid_generate;
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nm_utils_uuid_generate_from_string;
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nm_utils_wifi_freq_to_channel;
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nm_utils_wifi_channel_to_freq;
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nm_utils_wifi_find_next_channel;
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nm_utils_wifi_is_channel_valid;
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nm_ip4_address_compare;
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nm_ip4_address_dup;
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nm_ip4_address_get_address;
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@ -19,7 +19,7 @@
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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* (C) Copyright 2007 - 2008 Red Hat, Inc.
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* (C) Copyright 2007 - 2010 Red Hat, Inc.
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* (C) Copyright 2007 - 2008 Novell, Inc.
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*/
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@ -480,31 +480,11 @@ verify (NMSetting *setting, GSList *all_settings, GError **error)
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}
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if (priv->channel) {
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if (!strcmp (priv->band, "a")) {
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int i;
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int valid_channels[] = { 7, 8, 9, 11, 12, 16, 34, 36, 40, 44, 48,
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52, 56, 60, 64, 100, 104, 108, 112, 116,
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120, 124, 128, 132, 136, 140, 149, 153,
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157, 161, 165, 183, 184, 185, 187, 188,
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192, 196, 0 };
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for (i = 0; valid_channels[i]; i++) {
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if (priv->channel == valid_channels[i])
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break;
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}
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if (valid_channels[i] == 0) {
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g_set_error (error,
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NM_SETTING_WIRELESS_ERROR,
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NM_SETTING_WIRELESS_ERROR_INVALID_PROPERTY,
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NM_SETTING_WIRELESS_CHANNEL);
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return FALSE;
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}
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} else if (!strcmp (priv->band, "bg") && priv->channel > 14) {
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g_set_error (error,
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NM_SETTING_WIRELESS_ERROR,
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NM_SETTING_WIRELESS_ERROR_INVALID_PROPERTY,
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NM_SETTING_WIRELESS_CHANNEL);
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if (!nm_utils_wifi_is_channel_valid (priv->channel, priv->band)) {
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g_set_error (error,
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NM_SETTING_WIRELESS_ERROR,
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NM_SETTING_WIRELESS_ERROR_INVALID_PROPERTY,
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NM_SETTING_WIRELESS_CHANNEL);
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return FALSE;
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}
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}
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@ -117,7 +117,7 @@ static const struct IsoLangToEncodings isoLangEntries2[] =
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/* Arabic */
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{ "ar", {"iso-8859-6", "windows-1256", NULL} },
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/* Balitc */
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/* Baltic */
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{ "et", {"iso-8859-4", "windows-1257", NULL} }, /* Estonian */
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{ "lt", {"iso-8859-4", "windows-1257", NULL} }, /* Lithuanian */
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{ "lv", {"iso-8859-4", "windows-1257", NULL} }, /* Latvian */
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@ -2102,3 +2102,212 @@ out:
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return ret;
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}
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/* Band, channel/frequency stuff for wireless */
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struct cf_pair {
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guint32 chan;
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guint32 freq;
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};
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static struct cf_pair a_table[] = {
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/* A band */
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{ 7, 5035 },
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{ 8, 5040 },
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{ 9, 5045 },
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{ 11, 5055 },
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{ 12, 5060 },
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{ 16, 5080 },
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{ 34, 5170 },
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{ 36, 5180 },
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{ 38, 5190 },
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{ 40, 5200 },
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{ 42, 5210 },
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{ 44, 5220 },
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{ 46, 5230 },
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{ 48, 5240 },
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{ 50, 5250 },
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{ 52, 5260 },
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{ 56, 5280 },
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{ 58, 5290 },
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{ 60, 5300 },
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{ 64, 5320 },
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{ 100, 5500 },
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{ 104, 5520 },
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{ 108, 5540 },
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{ 112, 5560 },
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{ 116, 5580 },
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{ 120, 5600 },
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{ 124, 5620 },
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{ 128, 5640 },
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{ 132, 5660 },
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{ 136, 5680 },
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{ 140, 5700 },
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{ 149, 5745 },
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{ 152, 5760 },
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{ 153, 5765 },
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{ 157, 5785 },
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{ 160, 5800 },
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{ 161, 5805 },
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{ 165, 5825 },
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{ 183, 4915 },
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{ 184, 4920 },
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{ 185, 4925 },
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{ 187, 4935 },
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{ 188, 4945 },
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{ 192, 4960 },
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{ 196, 4980 },
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{ 0, -1 }
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};
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static struct cf_pair bg_table[] = {
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/* B/G band */
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{ 1, 2412 },
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{ 2, 2417 },
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{ 3, 2422 },
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{ 4, 2427 },
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{ 5, 2432 },
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{ 6, 2437 },
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{ 7, 2442 },
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{ 8, 2447 },
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{ 9, 2452 },
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{ 10, 2457 },
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{ 11, 2462 },
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{ 12, 2467 },
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{ 13, 2472 },
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{ 14, 2484 },
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{ 0, -1 }
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};
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/**
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* nm_utils_wifi_freq_to_channel:
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* @freq: frequency
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*
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* Utility function to translate a WiFi frequency to its corresponding channel.
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*
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* Returns: the channel represented by the frequency or 0
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**/
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guint32
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nm_utils_wifi_freq_to_channel (guint32 freq)
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{
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int i = 0;
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if (freq > 4900) {
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while (a_table[i].chan && (a_table[i].freq != freq))
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i++;
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return a_table[i].chan;
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} else {
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while (bg_table[i].chan && (bg_table[i].freq != freq))
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i++;
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return bg_table[i].chan;
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}
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return 0;
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}
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/**
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* nm_utils_wifi_channel_to_freq:
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* @channel: channel
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* @band: frequency band for wireless ("a" or "bg")
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*
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* Utility function to translate a WiFi channel to its corresponding frequency.
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*
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* Returns: the frequency represented by the channel of the band,
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* or -1 when the freq is invalid, or 0 when the band
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* is invalid
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**/
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guint32
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nm_utils_wifi_channel_to_freq (guint32 channel, const char *band)
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{
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int i = 0;
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if (!strcmp (band, "a")) {
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while (a_table[i].chan && (a_table[i].chan != channel))
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i++;
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return a_table[i].freq;
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} else if (!strcmp (band, "bg")) {
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while (bg_table[i].chan && (bg_table[i].chan != channel))
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i++;
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return bg_table[i].freq;
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}
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return 0;
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}
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/**
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* nm_utils_wifi_find_next_channel:
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* @channel: current channel
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* @direction: whether going downward (0 or less) or upward (1 or more)
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* @band: frequency band for wireless ("a" or "bg")
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*
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* Utility function to find out next/previous WiFi channel for a channel.
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*
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* Returns: the next channel in the specified direction or 0
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**/
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guint32
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nm_utils_wifi_find_next_channel (guint32 channel, int direction, char *band)
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{
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size_t a_size = sizeof (a_table) / sizeof (struct cf_pair);
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size_t bg_size = sizeof (bg_table) / sizeof (struct cf_pair);
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struct cf_pair *pair = NULL;
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if (!strcmp (band, "a")) {
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if (channel < a_table[0].chan)
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return a_table[0].chan;
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if (channel > a_table[a_size - 2].chan)
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return a_table[a_size - 2].chan;
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pair = &a_table[0];
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} else if (!strcmp (band, "bg")) {
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if (channel < bg_table[0].chan)
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return bg_table[0].chan;
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if (channel > bg_table[bg_size - 2].chan)
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return bg_table[bg_size - 2].chan;
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pair = &bg_table[0];
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} else {
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g_assert_not_reached ();
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return 0;
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}
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while (pair->chan) {
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if (channel == pair->chan)
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return channel;
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if ((channel < (pair+1)->chan) && (channel > pair->chan)) {
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if (direction > 0)
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return (pair+1)->chan;
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else
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return pair->chan;
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}
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pair++;
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}
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return 0;
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}
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/**
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* nm_utils_wifi_is_channel_valid:
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* @channel: channel
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* @band: frequency band for wireless ("a" or "bg")
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*
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* Utility function to verify WiFi channel validity.
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*
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* Returns: TRUE or FALSE
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**/
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gboolean
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nm_utils_wifi_is_channel_valid (guint32 channel, const char *band)
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{
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struct cf_pair *table = NULL;
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int i = 0;
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if (!strcmp (band, "a"))
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table = a_table;
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else if (!strcmp (band, "bg"))
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table = bg_table;
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else
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return FALSE;
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while (table[i].chan && (table[i].chan != channel))
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i++;
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if (table[i].chan != 0)
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return TRUE;
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else
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return FALSE;
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}
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@ -215,4 +215,9 @@ GByteArray *nm_utils_rsa_key_encrypt (const GByteArray *data,
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G_END_DECLS
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guint32 nm_utils_wifi_freq_to_channel (guint32 freq);
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guint32 nm_utils_wifi_channel_to_freq (guint32 channel, const char *band);
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guint32 nm_utils_wifi_find_next_channel (guint32 channel, int direction, char *band);
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gboolean nm_utils_wifi_is_channel_valid (guint32 channel, const char *band);
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#endif /* NM_UTILS_H */
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129
src/nm-wifi-ap.c
129
src/nm-wifi-ap.c
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@ -15,7 +15,7 @@
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Copyright (C) 2004 - 2008 Red Hat, Inc.
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* Copyright (C) 2004 - 2010 Red Hat, Inc.
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* Copyright (C) 2006 - 2008 Novell, Inc.
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*/
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@ -604,7 +604,7 @@ nm_ap_new_fake_from_connection (NMConnection *connection)
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channel = nm_setting_wireless_get_channel (s_wireless);
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if (band && channel) {
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guint32 freq = channel_to_freq (channel, band);
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guint32 freq = nm_utils_wifi_channel_to_freq (channel, band);
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if (freq == 0)
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goto error;
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@ -1256,21 +1256,21 @@ nm_ap_check_compatible (NMAccessPoint *self,
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channel = nm_setting_wireless_get_channel (s_wireless);
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if (channel) {
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guint32 ap_chan = freq_to_channel (priv->freq);
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guint32 ap_chan = nm_utils_wifi_freq_to_channel (priv->freq);
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if (channel != ap_chan)
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return FALSE;
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}
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s_wireless_sec = (NMSettingWirelessSecurity *) nm_connection_get_setting (connection,
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NM_TYPE_SETTING_WIRELESS_SECURITY);
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NM_TYPE_SETTING_WIRELESS_SECURITY);
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return nm_setting_wireless_ap_security_compatible (s_wireless,
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s_wireless_sec,
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nm_ap_get_flags (self),
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nm_ap_get_wpa_flags (self),
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nm_ap_get_rsn_flags (self),
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nm_ap_get_mode (self));
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s_wireless_sec,
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nm_ap_get_flags (self),
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nm_ap_get_wpa_flags (self),
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nm_ap_get_rsn_flags (self),
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nm_ap_get_mode (self));
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}
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static gboolean
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@ -1364,114 +1364,3 @@ nm_ap_match_in_list (NMAccessPoint *find_ap,
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return NULL;
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}
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struct cf_pair {
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guint32 chan;
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guint32 freq;
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};
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static struct cf_pair a_table[] = {
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/* A band */
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{ 7, 5035 },
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{ 8, 5040 },
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{ 9, 5045 },
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{ 11, 5055 },
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{ 12, 5060 },
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{ 16, 5080 },
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{ 34, 5170 },
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{ 36, 5180 },
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{ 38, 5190 },
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{ 40, 5200 },
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{ 42, 5210 },
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{ 44, 5220 },
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{ 46, 5230 },
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{ 48, 5240 },
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{ 50, 5250 },
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{ 52, 5260 },
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{ 56, 5280 },
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{ 58, 5290 },
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{ 60, 5300 },
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{ 64, 5320 },
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{ 100, 5500 },
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{ 104, 5520 },
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{ 108, 5540 },
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{ 112, 5560 },
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{ 116, 5580 },
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{ 120, 5600 },
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{ 124, 5620 },
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{ 128, 5640 },
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{ 132, 5660 },
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{ 136, 5680 },
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{ 140, 5700 },
|
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{ 149, 5745 },
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{ 152, 5760 },
|
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{ 153, 5765 },
|
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{ 157, 5785 },
|
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{ 160, 5800 },
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{ 161, 5805 },
|
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{ 165, 5825 },
|
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{ 183, 4915 },
|
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{ 184, 4920 },
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{ 185, 4925 },
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{ 187, 4935 },
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{ 188, 4945 },
|
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{ 192, 4960 },
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{ 196, 4980 },
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{ 0, -1 }
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};
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static struct cf_pair bg_table[] = {
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/* B/G band */
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{ 1, 2412 },
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{ 2, 2417 },
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{ 3, 2422 },
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{ 4, 2427 },
|
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{ 5, 2432 },
|
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{ 6, 2437 },
|
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{ 7, 2442 },
|
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{ 8, 2447 },
|
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{ 9, 2452 },
|
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{ 10, 2457 },
|
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{ 11, 2462 },
|
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{ 12, 2467 },
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{ 13, 2472 },
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{ 14, 2484 },
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{ 0, -1 }
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};
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guint32
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freq_to_channel (guint32 freq)
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{
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int i = 0;
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if (freq > 4900) {
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while (a_table[i].chan && (a_table[i].freq != freq))
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i++;
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return a_table[i].chan;
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} else {
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while (bg_table[i].chan && (bg_table[i].freq != freq))
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i++;
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return bg_table[i].chan;
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}
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return 0;
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}
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guint32
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channel_to_freq (guint32 channel, const char *band)
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{
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int i = 0;
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if (!strcmp (band, "a")) {
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while (a_table[i].chan && (a_table[i].chan != channel))
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i++;
|
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return a_table[i].freq;
|
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} else if (!strcmp (band, "bg")) {
|
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while (bg_table[i].chan && (bg_table[i].chan != channel))
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i++;
|
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return bg_table[i].freq;
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}
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return 0;
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}
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|
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|
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@ -15,7 +15,7 @@
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* with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
*
|
||||
* Copyright (C) 2004 - 2008 Red Hat, Inc.
|
||||
* Copyright (C) 2004 - 2010 Red Hat, Inc.
|
||||
* Copyright (C) 2006 - 2008 Novell, Inc.
|
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*/
|
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|
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|
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@ -123,7 +123,4 @@ NMAccessPoint * nm_ap_match_in_list (NMAccessPoint *find_ap,
|
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|
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void nm_ap_print_self (NMAccessPoint *ap, const char * prefix);
|
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|
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guint32 freq_to_channel (guint32 freq);
|
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guint32 channel_to_freq (guint32 channel, const char *band);
|
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|
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#endif /* NM_ACCESS_POINT_H */
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|
|||
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Reference in a new issue