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[src/trunk]: src/sys/net80211 Introduce ieee80211_recv_mgmt_auth.
details: https://anonhg.NetBSD.org/src/rev/8d35dc8b297f
branches: trunk
changeset: 829087:8d35dc8b297f
user: maxv <maxv%NetBSD.org@localhost>
date: Tue Jan 16 15:48:32 2018 +0000
description:
Introduce ieee80211_recv_mgmt_auth.
diffstat:
sys/net80211/ieee80211_input.c | 152 ++++++++++++++++++++++------------------
1 files changed, 83 insertions(+), 69 deletions(-)
diffs (180 lines):
diff -r e06375f5ee43 -r 8d35dc8b297f sys/net80211/ieee80211_input.c
--- a/sys/net80211/ieee80211_input.c Tue Jan 16 15:42:52 2018 +0000
+++ b/sys/net80211/ieee80211_input.c Tue Jan 16 15:48:32 2018 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ieee80211_input.c,v 1.98 2018/01/16 15:42:52 maxv Exp $ */
+/* $NetBSD: ieee80211_input.c,v 1.99 2018/01/16 15:48:32 maxv Exp $ */
/*
* Copyright (c) 2001 Atsushi Onoe
@@ -37,7 +37,7 @@
__FBSDID("$FreeBSD: src/sys/net80211/ieee80211_input.c,v 1.81 2005/08/10 16:22:29 sam Exp $");
#endif
#ifdef __NetBSD__
-__KERNEL_RCSID(0, "$NetBSD: ieee80211_input.c,v 1.98 2018/01/16 15:42:52 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ieee80211_input.c,v 1.99 2018/01/16 15:48:32 maxv Exp $");
#endif
#ifdef _KERNEL_OPT
@@ -2371,6 +2371,84 @@
}
}
+static void
+ieee80211_recv_mgmt_auth(struct ieee80211com *ic, struct mbuf *m0,
+ struct ieee80211_node *ni, int subtype, int rssi, u_int32_t rstamp)
+{
+ struct ieee80211_frame *wh;
+ u_int8_t *frm, *efrm;
+ IEEE80211_DEBUGVAR(char ebuf[3 * ETHER_ADDR_LEN]);
+
+ wh = mtod(m0, struct ieee80211_frame *);
+ frm = (u_int8_t *)(wh + 1);
+ efrm = mtod(m0, u_int8_t *) + m0->m_len;
+
+ u_int16_t algo, seq, status;
+ /*
+ * auth frame format
+ * [2] algorithm
+ * [2] sequence
+ * [2] status
+ * [tlv*] challenge
+ */
+ IEEE80211_VERIFY_LENGTH(efrm - frm, 6);
+ algo = le16toh(*(u_int16_t *)frm);
+ seq = le16toh(*(u_int16_t *)(frm + 2));
+ status = le16toh(*(u_int16_t *)(frm + 4));
+ IEEE80211_DPRINTF(ic, IEEE80211_MSG_AUTH,
+ "[%s] recv auth frame with algorithm %d seq %d\n",
+ ether_snprintf(ebuf, sizeof(ebuf), wh->i_addr2), algo, seq);
+ /*
+ * Consult the ACL policy module if setup.
+ */
+ if (ic->ic_acl != NULL &&
+ !ic->ic_acl->iac_check(ic, wh->i_addr2)) {
+ IEEE80211_DISCARD(ic, IEEE80211_MSG_ACL,
+ wh, "auth", "%s", "disallowed by ACL");
+ ic->ic_stats.is_rx_acl++;
+ if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
+ IEEE80211_SEND_MGMT(ic, ni,
+ IEEE80211_FC0_SUBTYPE_AUTH,
+ (seq+1) | (IEEE80211_STATUS_UNSPECIFIED<<16));
+ }
+ return;
+ }
+ if (ic->ic_flags & IEEE80211_F_COUNTERM) {
+ IEEE80211_DISCARD(ic,
+ IEEE80211_MSG_AUTH | IEEE80211_MSG_CRYPTO,
+ wh, "auth", "%s", "TKIP countermeasures enabled");
+ ic->ic_stats.is_rx_auth_countermeasures++;
+#ifndef IEEE80211_NO_HOSTAP
+ if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
+ IEEE80211_SEND_MGMT(ic, ni,
+ IEEE80211_FC0_SUBTYPE_AUTH,
+ IEEE80211_REASON_MIC_FAILURE);
+ }
+#endif /* !IEEE80211_NO_HOSTAP */
+ return;
+ }
+ if (algo == IEEE80211_AUTH_ALG_SHARED)
+ ieee80211_auth_shared(ic, wh, frm + 6, efrm, ni, rssi,
+ rstamp, seq, status);
+ else if (algo == IEEE80211_AUTH_ALG_OPEN)
+ ieee80211_auth_open(ic, wh, ni, rssi, rstamp, seq,
+ status);
+ else {
+ IEEE80211_DISCARD(ic, IEEE80211_MSG_ANY,
+ wh, "auth", "unsupported alg %d", algo);
+ ic->ic_stats.is_rx_auth_unsupported++;
+#ifndef IEEE80211_NO_HOSTAP
+ if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
+ /* XXX not right */
+ IEEE80211_SEND_MGMT(ic, ni,
+ IEEE80211_FC0_SUBTYPE_AUTH,
+ (seq+1) | (IEEE80211_STATUS_ALG<<16));
+ }
+#endif /* !IEEE80211_NO_HOSTAP */
+ return;
+ }
+}
+
/* -------------------------------------------------------------------------- */
void
@@ -2399,73 +2477,9 @@
ieee80211_recv_mgmt_probe_req(ic, m0, ni, subtype, rssi, rstamp);
return;
- case IEEE80211_FC0_SUBTYPE_AUTH: {
- u_int16_t algo, seq, status;
- /*
- * auth frame format
- * [2] algorithm
- * [2] sequence
- * [2] status
- * [tlv*] challenge
- */
- IEEE80211_VERIFY_LENGTH(efrm - frm, 6);
- algo = le16toh(*(u_int16_t *)frm);
- seq = le16toh(*(u_int16_t *)(frm + 2));
- status = le16toh(*(u_int16_t *)(frm + 4));
- IEEE80211_DPRINTF(ic, IEEE80211_MSG_AUTH,
- "[%s] recv auth frame with algorithm %d seq %d\n",
- ether_snprintf(ebuf, sizeof(ebuf), wh->i_addr2), algo, seq);
- /*
- * Consult the ACL policy module if setup.
- */
- if (ic->ic_acl != NULL &&
- !ic->ic_acl->iac_check(ic, wh->i_addr2)) {
- IEEE80211_DISCARD(ic, IEEE80211_MSG_ACL,
- wh, "auth", "%s", "disallowed by ACL");
- ic->ic_stats.is_rx_acl++;
- if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
- IEEE80211_SEND_MGMT(ic, ni,
- IEEE80211_FC0_SUBTYPE_AUTH,
- (seq+1) | (IEEE80211_STATUS_UNSPECIFIED<<16));
- }
- return;
- }
- if (ic->ic_flags & IEEE80211_F_COUNTERM) {
- IEEE80211_DISCARD(ic,
- IEEE80211_MSG_AUTH | IEEE80211_MSG_CRYPTO,
- wh, "auth", "%s", "TKIP countermeasures enabled");
- ic->ic_stats.is_rx_auth_countermeasures++;
-#ifndef IEEE80211_NO_HOSTAP
- if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
- IEEE80211_SEND_MGMT(ic, ni,
- IEEE80211_FC0_SUBTYPE_AUTH,
- IEEE80211_REASON_MIC_FAILURE);
- }
-#endif /* !IEEE80211_NO_HOSTAP */
- return;
- }
- if (algo == IEEE80211_AUTH_ALG_SHARED)
- ieee80211_auth_shared(ic, wh, frm + 6, efrm, ni, rssi,
- rstamp, seq, status);
- else if (algo == IEEE80211_AUTH_ALG_OPEN)
- ieee80211_auth_open(ic, wh, ni, rssi, rstamp, seq,
- status);
- else {
- IEEE80211_DISCARD(ic, IEEE80211_MSG_ANY,
- wh, "auth", "unsupported alg %d", algo);
- ic->ic_stats.is_rx_auth_unsupported++;
-#ifndef IEEE80211_NO_HOSTAP
- if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
- /* XXX not right */
- IEEE80211_SEND_MGMT(ic, ni,
- IEEE80211_FC0_SUBTYPE_AUTH,
- (seq+1) | (IEEE80211_STATUS_ALG<<16));
- }
-#endif /* !IEEE80211_NO_HOSTAP */
- return;
- }
- break;
- }
+ case IEEE80211_FC0_SUBTYPE_AUTH:
+ ieee80211_recv_mgmt_auth(ic, m0, ni, subtype, rssi, rstamp);
+ return;
case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
case IEEE80211_FC0_SUBTYPE_REASSOC_REQ: {
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