diff options
Diffstat (limited to 'sys/net80211/ieee80211_input.c')
| -rw-r--r-- | sys/net80211/ieee80211_input.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sys/net80211/ieee80211_input.c b/sys/net80211/ieee80211_input.c index 53c2285..ad3fab4 100644 --- a/sys/net80211/ieee80211_input.c +++ b/sys/net80211/ieee80211_input.c @@ -475,6 +475,7 @@ ieee80211_parse_beacon(struct ieee80211_node *ni, struct mbuf *m, * [tlv] ssid * [tlv] supported rates * [tlv] country information + * [tlv] channel switch announcement (CSA) * [tlv] parameter set (FH/DS) * [tlv] erp information * [tlv] extended supported rates @@ -508,6 +509,9 @@ ieee80211_parse_beacon(struct ieee80211_node *ni, struct mbuf *m, case IEEE80211_ELEMID_COUNTRY: scan->country = frm; break; + case IEEE80211_ELEMID_CSA: + scan->csa = frm; + break; case IEEE80211_ELEMID_FHPARMS: if (ic->ic_phytype == IEEE80211_T_FH) { scan->fhdwell = LE_READ_2(&frm[2]); @@ -642,6 +646,14 @@ ieee80211_parse_beacon(struct ieee80211_node *ni, struct mbuf *m, IEEE80211_VERIFY_LENGTH(scan->country[1], 3 * sizeof(uint8_t), scan->country = NULL); } + if (scan->csa != NULL) { + /* + * Validate Channel Switch Announcement; this must + * be the correct length or we toss the frame. + */ + IEEE80211_VERIFY_LENGTH(scan->csa[1], 3 * sizeof(uint8_t), + scan->status |= IEEE80211_BPARSE_CSA_INVALID); + } /* * Process HT ie's. This is complicated by our * accepting both the standard ie's and the pre-draft |
