diff options
| -rw-r--r-- | include/net/cfg80211.h | 42 | ||||
| -rw-r--r-- | include/uapi/linux/nl80211.h | 65 | ||||
| -rw-r--r-- | net/wireless/nl80211.c | 113 |
3 files changed, 208 insertions, 12 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index 6f992aff74ae..a00cf80e61dc 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -5046,7 +5046,9 @@ struct ieee80211_iface_limit { * struct ieee80211_iface_combination - possible interface combination * * With this structure the driver can describe which interface - * combinations it supports concurrently. + * combinations it supports concurrently. When set in a struct wiphy_radio, + * the combinations refer to combinations of interfaces currently active on + * that radio. * * Examples: * @@ -5406,6 +5408,38 @@ struct wiphy_iftype_akm_suites { int n_akm_suites; }; +/** + * struct wiphy_radio_freq_range - wiphy frequency range + * @start_freq: start range edge frequency (kHz) + * @end_freq: end range edge frequency (kHz) + */ +struct wiphy_radio_freq_range { + u32 start_freq; + u32 end_freq; +}; + + +/** + * struct wiphy_radio - physical radio of a wiphy + * This structure describes a physical radio belonging to a wiphy. + * It is used to describe concurrent-channel capabilities. Only one channel + * can be active on the radio described by struct wiphy_radio. + * + * @freq_range: frequency range that the radio can operate on. + * @n_freq_range: number of elements in @freq_range + * + * @iface_combinations: Valid interface combinations array, should not + * list single interface types. + * @n_iface_combinations: number of entries in @iface_combinations array. + */ +struct wiphy_radio { + const struct wiphy_radio_freq_range *freq_range; + int n_freq_range; + + const struct ieee80211_iface_combination *iface_combinations; + int n_iface_combinations; +}; + #define CFG80211_HW_TIMESTAMP_ALL_PEERS 0xffff /** @@ -5624,6 +5658,9 @@ struct wiphy_iftype_akm_suites { * A value of %CFG80211_HW_TIMESTAMP_ALL_PEERS indicates the driver * supports enabling HW timestamping for all peers (i.e. no need to * specify a mac address). + * + * @radio: radios belonging to this wiphy + * @n_radio: number of radios */ struct wiphy { struct mutex mtx; @@ -5774,6 +5811,9 @@ struct wiphy { u16 hw_timestamp_max_peers; + int n_radio; + const struct wiphy_radio *radio; + char priv[] __aligned(NETDEV_ALIGN); }; diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 6ae3997061b6..f97f5adc8d51 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -2052,6 +2052,10 @@ enum nl80211_commands { * @NL80211_ATTR_INTERFACE_COMBINATIONS: Nested attribute listing the supported * interface combinations. In each nested item, it contains attributes * defined in &enum nl80211_if_combination_attrs. + * If the wiphy uses multiple radios (@NL80211_ATTR_WIPHY_RADIOS is set), + * this attribute contains the interface combinations of the first radio. + * See @NL80211_ATTR_WIPHY_INTERFACE_COMBINATIONS for the global wiphy + * combinations for the sum of all radios. * @NL80211_ATTR_SOFTWARE_IFTYPES: Nested attribute (just like * %NL80211_ATTR_SUPPORTED_IFTYPES) containing the interface types that * are managed in software: interfaces of these types aren't subject to @@ -2856,6 +2860,14 @@ enum nl80211_commands { * %NL80211_CMD_ASSOCIATE indicating the SPP A-MSDUs * are used on this connection * + * @NL80211_ATTR_WIPHY_RADIOS: Nested attribute describing physical radios + * belonging to this wiphy. See &enum nl80211_wiphy_radio_attrs. + * + * @NL80211_ATTR_WIPHY_INTERFACE_COMBINATIONS: Nested attribute listing the + * supported interface combinations for all radios combined. In each + * nested item, it contains attributes defined in + * &enum nl80211_if_combination_attrs. + * * @NUM_NL80211_ATTR: total number of nl80211_attrs available * @NL80211_ATTR_MAX: highest attribute number currently defined * @__NL80211_ATTR_AFTER_LAST: internal use @@ -3401,6 +3413,9 @@ enum nl80211_attrs { NL80211_ATTR_ASSOC_SPP_AMSDU, + NL80211_ATTR_WIPHY_RADIOS, + NL80211_ATTR_WIPHY_INTERFACE_COMBINATIONS, + /* add attributes here, update the policy in nl80211.c */ __NL80211_ATTR_AFTER_LAST, @@ -8005,4 +8020,54 @@ enum nl80211_ap_settings_flags { NL80211_AP_SETTINGS_SA_QUERY_OFFLOAD_SUPPORT = 1 << 1, }; +/** + * enum nl80211_wiphy_radio_attrs - wiphy radio attributes + * + * @__NL80211_WIPHY_RADIO_ATTR_INVALID: Invalid + * + * @NL80211_WIPHY_RADIO_ATTR_INDEX: Index of this radio (u32) + * @NL80211_WIPHY_RADIO_ATTR_FREQ_RANGE: Frequency range supported by this + * radio. Attribute may be present multiple times. + * @NL80211_WIPHY_RADIO_ATTR_INTERFACE_COMBINATION: Supported interface + * combination for this radio. Attribute may be present multiple times + * and contains attributes defined in &enum nl80211_if_combination_attrs. + * + * @__NL80211_WIPHY_RADIO_ATTR_LAST: Internal + * @NL80211_WIPHY_RADIO_ATTR_MAX: Highest attribute + */ +enum nl80211_wiphy_radio_attrs { + __NL80211_WIPHY_RADIO_ATTR_INVALID, + + NL80211_WIPHY_RADIO_ATTR_INDEX, + NL80211_WIPHY_RADIO_ATTR_FREQ_RANGE, + NL80211_WIPHY_RADIO_ATTR_INTERFACE_COMBINATION, + + /* keep last */ + __NL80211_WIPHY_RADIO_ATTR_LAST, + NL80211_WIPHY_RADIO_ATTR_MAX = __NL80211_WIPHY_RADIO_ATTR_LAST - 1, +}; + +/** + * enum nl80211_wiphy_radio_freq_range - wiphy radio frequency range + * + * @__NL80211_WIPHY_RADIO_FREQ_ATTR_INVALID: Invalid + * + * @NL80211_WIPHY_RADIO_FREQ_ATTR_START: Frequency range start (u32). + * The unit is kHz. + * @NL80211_WIPHY_RADIO_FREQ_ATTR_END: Frequency range end (u32). + * The unit is kHz. + * + * @__NL80211_WIPHY_RADIO_FREQ_ATTR_LAST: Internal + * @NL80211_WIPHY_RADIO_FREQ_ATTR_MAX: Highest attribute + */ +enum nl80211_wiphy_radio_freq_range { + __NL80211_WIPHY_RADIO_FREQ_ATTR_INVALID, + + NL80211_WIPHY_RADIO_FREQ_ATTR_START, + NL80211_WIPHY_RADIO_FREQ_ATTR_END, + + __NL80211_WIPHY_RADIO_FREQ_ATTR_LAST, + NL80211_WIPHY_RADIO_FREQ_ATTR_MAX = __NL80211_WIPHY_RADIO_FREQ_ATTR_LAST - 1, +}; + #endif /* __LINUX_NL80211_H */ diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index deacd5f3f256..7397a372c78e 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1632,16 +1632,18 @@ nla_put_failure: } static int nl80211_put_ifcomb_data(struct sk_buff *msg, bool large, int idx, - const struct ieee80211_iface_combination *c) + const struct ieee80211_iface_combination *c, + u16 nested) { struct nlattr *nl_combi, *nl_limits; int i; - nl_combi = nla_nest_start_noflag(msg, idx); + nl_combi = nla_nest_start_noflag(msg, idx | nested); if (!nl_combi) goto nla_put_failure; - nl_limits = nla_nest_start_noflag(msg, NL80211_IFACE_COMB_LIMITS); + nl_limits = nla_nest_start_noflag(msg, NL80211_IFACE_COMB_LIMITS | + nested); if (!nl_limits) goto nla_put_failure; @@ -1689,19 +1691,26 @@ nla_put_failure: static int nl80211_put_iface_combinations(struct wiphy *wiphy, struct sk_buff *msg, - bool large) + int attr, int radio, + bool large, u16 nested) { + const struct ieee80211_iface_combination *c; struct nlattr *nl_combis; - int i; + int i, n; - nl_combis = nla_nest_start_noflag(msg, - NL80211_ATTR_INTERFACE_COMBINATIONS); + nl_combis = nla_nest_start_noflag(msg, attr | nested); if (!nl_combis) goto nla_put_failure; - for (i = 0; i < wiphy->n_iface_combinations; i++) - if (nl80211_put_ifcomb_data(msg, large, i + 1, - &wiphy->iface_combinations[i])) + if (radio >= 0) { + c = wiphy->radio[0].iface_combinations; + n = wiphy->radio[0].n_iface_combinations; + } else { + c = wiphy->iface_combinations; + n = wiphy->n_iface_combinations; + } + for (i = 0; i < n; i++) + if (nl80211_put_ifcomb_data(msg, large, i + 1, &c[i], nested)) goto nla_put_failure; nla_nest_end(msg, nl_combis); @@ -2408,6 +2417,80 @@ fail: return -ENOBUFS; } +static int nl80211_put_radio(struct wiphy *wiphy, struct sk_buff *msg, int idx) +{ + const struct wiphy_radio *r = &wiphy->radio[idx]; + struct nlattr *radio, *freq; + int i; + + radio = nla_nest_start(msg, idx); + if (!radio) + return -ENOBUFS; + + if (nla_put_u32(msg, NL80211_WIPHY_RADIO_ATTR_INDEX, idx)) + goto nla_put_failure; + + for (i = 0; i < r->n_freq_range; i++) { + const struct wiphy_radio_freq_range *range = &r->freq_range[i]; + + freq = nla_nest_start(msg, NL80211_WIPHY_RADIO_ATTR_FREQ_RANGE); + if (!freq) + goto nla_put_failure; + + if (nla_put_u32(msg, NL80211_WIPHY_RADIO_FREQ_ATTR_START, + range->start_freq) || + nla_put_u32(msg, NL80211_WIPHY_RADIO_FREQ_ATTR_END, + range->end_freq)) + goto nla_put_failure; + + nla_nest_end(msg, freq); + } + + for (i = 0; i < r->n_iface_combinations; i++) + if (nl80211_put_ifcomb_data(msg, true, + NL80211_WIPHY_RADIO_ATTR_INTERFACE_COMBINATION, + &r->iface_combinations[i], + NLA_F_NESTED)) + goto nla_put_failure; + + nla_nest_end(msg, radio); + + return 0; + +nla_put_failure: + return -ENOBUFS; +} + +static int nl80211_put_radios(struct wiphy *wiphy, struct sk_buff *msg) +{ + struct nlattr *radios; + int i; + + if (!wiphy->n_radio) + return 0; + + radios = nla_nest_start(msg, NL80211_ATTR_WIPHY_RADIOS); + if (!radios) + return -ENOBUFS; + + for (i = 0; i < wiphy->n_radio; i++) + if (nl80211_put_radio(wiphy, msg, i)) + goto fail; + + nla_nest_end(msg, radios); + + if (nl80211_put_iface_combinations(wiphy, msg, + NL80211_ATTR_WIPHY_INTERFACE_COMBINATIONS, + -1, true, NLA_F_NESTED)) + return -ENOBUFS; + + return 0; + +fail: + nla_nest_cancel(msg, radios); + return -ENOBUFS; +} + struct nl80211_dump_wiphy_state { s64 filter_wiphy; long start; @@ -2703,7 +2786,9 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev, goto nla_put_failure; if (nl80211_put_iface_combinations(&rdev->wiphy, msg, - state->split)) + NL80211_ATTR_INTERFACE_COMBINATIONS, + rdev->wiphy.n_radio ? 0 : -1, + state->split, 0)) goto nla_put_failure; state->split_start++; @@ -3017,6 +3102,12 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev, rdev->wiphy.hw_timestamp_max_peers)) goto nla_put_failure; + state->split_start++; + break; + case 17: + if (nl80211_put_radios(&rdev->wiphy, msg)) + goto nla_put_failure; + /* done */ state->split_start = 0; break; 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