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datastorage/ubus: Add "soft" kicking algorithm

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In addition to scored "hard" kick for all clients (inc. legacy), add a "soft"
kick for 802.11v aware clients by always asking them to  move if below
threshold RSSI, but with no mandatory disassociation.

[cleanup commit message]
Signed-off-by: Nick Hainke <vincent@systemli.org>
This commit is contained in:
Ian Clowes 2022-02-17 16:48:42 +00:00 • committed by Nick Hainke
parent d37a768766
commit 359dd085aa
4 changed files with 138 additions and 30 deletions
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42
src/utils/ubus.c
View file

@ -1149,6 +1149,46 @@ void del_client_interface(uint32_t id, const struct dawn_mac client_addr, uint32
dawn_unregmem(&b);
}
int bss_transition_request(uint32_t id, const struct dawn_mac client_addr, struct kicking_nr* neighbor_list, uint32_t duration) {
struct hostapd_sock_entry* sub;
struct blob_buf b = { 0 };
dawnlog_debug_func("Entering...");
blob_buf_init(&b, 0);
dawn_regmem(&b);
blobmsg_add_macaddr(&b, "addr", client_addr);
blobmsg_add_u32(&b, "disassociation_timer", duration);
blobmsg_add_u32(&b, "validity_period", duration);
blobmsg_add_u8(&b, "abridged", 1); // prefer aps in neighborlist
blobmsg_add_u8(&b, "disassociation_imminent", 0); // Just a friendly request - no disassociation
void* nbs = blobmsg_open_array(&b, "neighbors");
// Add the first N AP
int neighbors_added = 0;
while (neighbors_added < dawn_metric.disassoc_nr_length && neighbor_list != NULL) {
dawnlog_info("BSS TRANSITION NEIGHBOR " NR_MACSTR "\n", NR_MAC2STR(neighbor_list->nr_ap->neighbor_report));
blobmsg_add_string(&b, NULL, neighbor_list->nr_ap->neighbor_report);
neighbor_list = neighbor_list->next;
neighbors_added++;
}
blobmsg_close_array(&b, nbs);
list_for_each_entry(sub, &hostapd_sock_list, list)
{
if (sub->subscribed) {
int timeout = 1; //TDO: Maybe ID is wrong?! OR CHECK HERE ID
ubus_invoke(ctx, id, "bss_transition_request", b.head, NULL, NULL, timeout * 1000);
}
}
blob_buf_free(&b);
dawn_unregmem(&b);
return 0;
}
int wnm_disassoc_imminent(uint32_t id, const struct dawn_mac client_addr, struct kicking_nr* neighbor_list, int threshold, uint32_t duration) {
struct hostapd_sock_entry *sub;
struct blob_buf b = {0};
@ -1168,7 +1208,7 @@ int wnm_disassoc_imminent(uint32_t id, const struct dawn_mac client_addr, struct
// Add the first N AP that reach threshold, where list order id high->low score
int neighbors_added = 0;
while(neighbors_added < dawn_metric.disassoc_nr_length && neighbor_list != NULL && neighbor_list->score >= threshold) {
dawnlog_info("BSS TRANSITION NEIGHBOR " NR_MACSTR ", Score=%d\n", NR_MAC2STR(neighbor_list->nr_ap->neighbor_report), neighbor_list->score);
dawnlog_info("WNM DISASSOC NEIGHBOR " NR_MACSTR ", Score=%d\n", NR_MAC2STR(neighbor_list->nr_ap->neighbor_report), neighbor_list->score);
blobmsg_add_string(&b, NULL, neighbor_list->nr_ap->neighbor_report);
neighbor_list = neighbor_list->next;
neighbors_added++;