developer | e2cc0fa | 2022-03-29 17:31:03 +0800 | [diff] [blame] | 1 | From 6fc069a54efb892e486dfde59cb97e0023dbbf5d Mon Sep 17 00:00:00 2001 |
| 2 | From: "howard.hsu" <howard-yh.hsu@mediatek.com> |
| 3 | Date: Wed, 19 Jan 2022 21:27:55 +0800 |
| 4 | Subject: [PATCH 8/9] Add hostapd_neighbor_set_own_report_pref() |
| 5 | |
| 6 | If my own BSS is going to terminate itself, the preference value of neighbor |
| 7 | report must be set to 0. |
| 8 | --- |
| 9 | hostapd/ctrl_iface.c | 5 ++++- |
| 10 | src/ap/neighbor_db.c | 36 ++++++++++++++++++++++++++++++++++++ |
| 11 | src/ap/neighbor_db.h | 2 ++ |
| 12 | 3 files changed, 42 insertions(+), 1 deletion(-) |
| 13 | |
| 14 | diff --git a/hostapd/ctrl_iface.c b/hostapd/ctrl_iface.c |
| 15 | index 5a82ae6..3146a25 100644 |
| 16 | --- a/hostapd/ctrl_iface.c |
| 17 | +++ b/hostapd/ctrl_iface.c |
| 18 | @@ -993,8 +993,11 @@ static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd, |
| 19 | } |
| 20 | if (os_strstr(cmd, " abridged=1")) |
| 21 | req_mode |= WNM_BSS_TM_REQ_ABRIDGED; |
| 22 | - if (os_strstr(cmd, " disassoc_imminent=1")) |
| 23 | + if (os_strstr(cmd, " disassoc_imminent=1")) { |
| 24 | req_mode |= WNM_BSS_TM_REQ_DISASSOC_IMMINENT; |
| 25 | + /* Set own BSS neighbor report preference value as 0 */ |
| 26 | + hostapd_neighbor_set_own_report_pref(hapd, nei_rep, nei_len, 0); |
| 27 | + } |
| 28 | |
| 29 | #ifdef CONFIG_MBO |
| 30 | pos = os_strstr(cmd, "mbo="); |
| 31 | diff --git a/src/ap/neighbor_db.c b/src/ap/neighbor_db.c |
| 32 | index ce6865d..bc1b163 100644 |
| 33 | --- a/src/ap/neighbor_db.c |
| 34 | +++ b/src/ap/neighbor_db.c |
| 35 | @@ -352,3 +352,39 @@ void hostapd_neighbor_set_own_report(struct hostapd_data *hapd) |
| 36 | wpabuf_free(nr); |
| 37 | #endif /* NEED_AP_MLME */ |
| 38 | } |
| 39 | + |
| 40 | + |
| 41 | +void hostapd_neighbor_set_own_report_pref(struct hostapd_data *hapd, char *nei_buf, |
| 42 | + size_t buflen, const int pref) |
| 43 | +{ |
| 44 | + struct hostapd_neighbor_entry *nr; |
| 45 | + char *pos, *next_nr; |
| 46 | + |
| 47 | + pos = nei_buf; |
| 48 | + next_nr = nei_buf; |
| 49 | + |
| 50 | + dl_list_for_each(nr, &hapd->nr_db, struct hostapd_neighbor_entry, |
| 51 | + list) { |
| 52 | + pos = next_nr; |
| 53 | + next_nr = pos + 2 + wpabuf_len(nr->nr); |
| 54 | + /* Shift 2 bytes for Element ID and Neighbor report length */ |
| 55 | + pos = pos + 2; |
| 56 | + if(os_memcmp(pos, hapd->own_addr, ETH_ALEN) == 0) { |
| 57 | + /* Shift for BSSID + BSSID info + Op_class + channel num + PHY type */ |
| 58 | + pos = pos + 6 + 4 + 1 + 1 + 1; |
| 59 | + |
| 60 | + /* Iterate Subelement */ |
| 61 | + while (next_nr - pos > 0) { |
| 62 | + if (*pos == 3) { |
| 63 | + pos = pos + 2; |
| 64 | + *pos = pref; |
| 65 | + return; |
| 66 | + } else { |
| 67 | + pos++; |
| 68 | + int shift_len = *pos++; |
| 69 | + pos = pos + shift_len; |
| 70 | + } |
| 71 | + } |
| 72 | + } |
| 73 | + } |
| 74 | +} |
| 75 | diff --git a/src/ap/neighbor_db.h b/src/ap/neighbor_db.h |
| 76 | index 1ae194d..2e16f72 100644 |
| 77 | --- a/src/ap/neighbor_db.h |
| 78 | +++ b/src/ap/neighbor_db.h |
| 79 | @@ -27,4 +27,6 @@ void hostapd_free_neighbor_db(struct hostapd_data *hapd); |
| 80 | int hostapd_neighbor_count(struct hostapd_data *hapd); |
| 81 | int hostapd_neighbor_insert_buffer(struct hostapd_data *hapd, char *buf, |
| 82 | size_t buflen); |
| 83 | +void hostapd_neighbor_set_own_report_pref(struct hostapd_data *hapd, char *nei_buf, |
| 84 | + size_t buflen, const int pref); |
| 85 | #endif /* NEIGHBOR_DB_H */ |
| 86 | -- |
| 87 | 2.18.0 |
| 88 | |