This allows drivers to advertise the maximum number of associated stations they support in AP mode (including P2P GO). User space applications can use this for cleaner way of handling the limit (e.g., hostapd rejecting IEEE 802.11 authentication without manual configuration of the limit) or to figure out what type of use cases can be executed with multiple devices before trying and failing.
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| @@ -1568,6 +1568,13 @@ enum nl80211_commands { · 1567 unmodified lines | ||
| 1568 | 1568 | * @NL80211_ATTR_MAC_HINT: MAC address recommendation as initial BSS |
| 1569 | 1569 | * @NL80211_ATTR_WIPHY_FREQ_HINT: frequency of the recommended initial BSS |
| 1570 | 1570 | * |
| 1571 | + * @NL80211_ATTR_MAX_AP_ASSOC_STA: Device attribute that indicates how many | |
| 1572 | + * associated stations are supported in AP mode (including P2P GO); u32. | |
| 1573 | + * Since drivers may not have a fixed limit on the maximum number (e.g., | |
| 1574 | + * other concurrent operations may affect this), drivers are allowed to | |
| 1575 | + * advertise values that cannot always be met. In such cases, an attempt | |
| 1576 | + * to add a new station entry with @NL80211_CMD_NEW_STATION may fail. | |
| 1577 | + * | |
| 1571 | 1578 | * @NL80211_ATTR_MAX: highest attribute number currently defined |
| 1572 | 1579 | * @__NL80211_ATTR_AFTER_LAST: internal use |
| 1573 | 1580 | */ |
| @@ -1899,6 +1906,8 @@ enum nl80211_attrs { · 325 unmodified lines | ||
| 1899 | 1906 | NL80211_ATTR_MAC_HINT, |
| 1900 | 1907 | NL80211_ATTR_WIPHY_FREQ_HINT, |
| 1901 | 1908 | |
| 1909 | + NL80211_ATTR_MAX_AP_ASSOC_STA, | |
| 1910 | + | |
| 1902 | 1911 | /* add attributes here, update the policy in nl80211.c */ |
| 1903 | 1912 | |
| 1904 | 1913 | __NL80211_ATTR_AFTER_LAST, |