scftorture: Count single_rpc offline failures in statistics outputgrafted

scf_torture_stats_print() aggregates each invoker thread's counters
into a local scf_statistics structure before printing, but the
n_single_rpc_ofl field is missing from the aggregation loop.  As a
result, the "single_rpc_ofl" value printed in the statistics line is
always zero, even when smp_call_function_single() invocations for the
RPC test have failed due to offline CPUs and been counted by the
invoker threads.

Add the missing accumulation so that the printed value reflects the
actual counts.

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>

1 files changed, 286 insertions, 0 deletions

diff --git a/net/mac80211/tests/mfp.c b/net/mac80211/tests/mfp.c
new file mode 100644
index 000000000..58e675e0e
--- /dev/null
+++ b/net/mac80211/tests/mfp.c
@@ -0,0 +1,286 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * KUnit tests for management frame acceptance
+ *
+ * Copyright (C) 2023 Intel Corporation
+ */
+#include <kunit/test.h>
+#include <kunit/skbuff.h>
+#include "../ieee80211_i.h"
+#include "../sta_info.h"
+
+MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");
+
+static const struct mfp_test_case {
+	const char *desc;
+	bool sta, mfp, decrypted, unicast, assoc;
+	u8 category;
+	u8 stype;
+	u8 action;
+	ieee80211_rx_result result;
+} accept_mfp_cases[] = {
+	/* regular public action */
+	{
+		.desc = "public action: accept unicast from unknown peer",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PUBLIC,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.unicast = true,
+		.result = RX_CONTINUE,
+	},
+	{
+		.desc = "public action: accept multicast from unknown peer",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PUBLIC,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.unicast = false,
+		.result = RX_CONTINUE,
+	},
+	{
+		.desc = "public action: accept unicast without MFP",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PUBLIC,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.unicast = true,
+		.sta = true,
+		.result = RX_CONTINUE,
+	},
+	{
+		.desc = "public action: accept multicast without MFP",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PUBLIC,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.unicast = false,
+		.sta = true,
+		.result = RX_CONTINUE,
+	},
+	{
+		.desc = "public action: drop unicast with MFP",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PUBLIC,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.unicast = true,
+		.sta = true,
+		.mfp = true,
+		.result = RX_DROP_U_UNPROT_UNICAST_PUB_ACTION,
+	},
+	{
+		.desc = "public action: accept multicast with MFP",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PUBLIC,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.unicast = false,
+		.sta = true,
+		.mfp = true,
+		.result = RX_CONTINUE,
+	},
+	/* protected dual of public action */
+	{
+		.desc = "protected dual: drop unicast from unknown peer",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.unicast = true,
+		.result = RX_DROP_U_UNPROT_DUAL,
+	},
+	{
+		.desc = "protected dual: drop multicast from unknown peer",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.unicast = false,
+		.result = RX_DROP_U_UNPROT_DUAL,
+	},
+	{
+		.desc = "protected dual: drop unicast without MFP",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.unicast = true,
+		.sta = true,
+		.result = RX_DROP_U_UNPROT_DUAL,
+	},
+	{
+		.desc = "protected dual: drop multicast without MFP",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.unicast = false,
+		.sta = true,
+		.result = RX_DROP_U_UNPROT_DUAL,
+	},
+	{
+		.desc = "protected dual: drop undecrypted unicast with MFP",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.unicast = true,
+		.sta = true,
+		.mfp = true,
+		.result = RX_DROP_U_UNPROT_DUAL,
+	},
+	{
+		.desc = "protected dual: drop undecrypted multicast with MFP",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.unicast = false,
+		.sta = true,
+		.mfp = true,
+		.result = RX_DROP_U_UNPROT_DUAL,
+	},
+	{
+		.desc = "protected dual: accept unicast with MFP",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.decrypted = true,
+		.unicast = true,
+		.sta = true,
+		.mfp = true,
+		.result = RX_CONTINUE,
+	},
+	{
+		.desc = "protected dual: accept multicast with MFP",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_PROTECTED_DUAL_OF_ACTION,
+		.action = WLAN_PUB_ACTION_DSE_ENABLEMENT,
+		.decrypted = true,
+		.unicast = false,
+		.sta = true,
+		.mfp = true,
+		.result = RX_CONTINUE,
+	},
+	/* deauth/disassoc before keys are set */
+	{
+		.desc = "deauth: accept unicast with MFP but w/o key",
+		.stype = IEEE80211_STYPE_DEAUTH,
+		.sta = true,
+		.mfp = true,
+		.unicast = true,
+		.result = RX_CONTINUE,
+	},
+	{
+		.desc = "disassoc: accept unicast with MFP but w/o key",
+		.stype = IEEE80211_STYPE_DEAUTH,
+		.sta = true,
+		.mfp = true,
+		.unicast = true,
+		.result = RX_CONTINUE,
+	},
+	/* non-public robust action frame ... */
+	{
+		.desc = "BA action: drop unicast before assoc",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_BACK,
+		.unicast = true,
+		.sta = true,
+		.result = RX_DROP_U_UNPROT_ROBUST_ACTION,
+	},
+	{
+		.desc = "BA action: drop unprotected after assoc",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_BACK,
+		.unicast = true,
+		.sta = true,
+		.mfp = true,
+		.result = RX_DROP_U_UNPROT_UCAST_MGMT,
+	},
+	{
+		.desc = "BA action: accept unprotected without MFP",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_BACK,
+		.unicast = true,
+		.sta = true,
+		.assoc = true,
+		.mfp = false,
+		.result = RX_CONTINUE,
+	},
+	{
+		.desc = "BA action: drop unprotected with MFP",
+		.stype = IEEE80211_STYPE_ACTION,
+		.category = WLAN_CATEGORY_BACK,
+		.unicast = true,
+		.sta = true,
+		.mfp = true,
+		.result = RX_DROP_U_UNPROT_UCAST_MGMT,
+	},
+};
+
+KUNIT_ARRAY_PARAM_DESC(accept_mfp, accept_mfp_cases, desc);
+
+static void accept_mfp(struct kunit *test)
+{
+	static struct sta_info sta;
+	const struct mfp_test_case *params = test->param_value;
+	struct ieee80211_rx_data rx = {
+		.sta = params->sta ? &sta : NULL,
+	};
+	struct ieee80211_rx_status *status;
+	struct ieee80211_hdr_3addr hdr = {
+		.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					     params->stype),
+		.addr1 = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
+		.addr2 = { 0x12, 0x22, 0x33, 0x44, 0x55, 0x66 },
+		/* A3/BSSID doesn't matter here */
+	};
+
+	memset(&sta, 0, sizeof(sta));
+
+	if (!params->sta) {
+		KUNIT_ASSERT_FALSE(test, params->mfp);
+		KUNIT_ASSERT_FALSE(test, params->decrypted);
+	}
+
+	if (params->mfp)
+		set_sta_flag(&sta, WLAN_STA_MFP);
+
+	if (params->assoc)
+		set_bit(WLAN_STA_ASSOC, &sta._flags);
+
+	rx.skb = kunit_zalloc_skb(test, 128, GFP_KERNEL);
+	KUNIT_ASSERT_NOT_NULL(test, rx.skb);
+	status = IEEE80211_SKB_RXCB(rx.skb);
+
+	if (params->decrypted) {
+		status->flag |= RX_FLAG_DECRYPTED;
+		if (params->unicast)
+			hdr.frame_control |=
+				cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+	}
+
+	if (params->unicast)
+		hdr.addr1[0] = 0x02;
+
+	skb_put_data(rx.skb, &hdr, sizeof(hdr));
+
+	switch (params->stype) {
+	case IEEE80211_STYPE_ACTION:
+		skb_put_u8(rx.skb, params->category);
+		skb_put_u8(rx.skb, params->action);
+		break;
+	case IEEE80211_STYPE_DEAUTH:
+	case IEEE80211_STYPE_DISASSOC: {
+		__le16 reason = cpu_to_le16(WLAN_REASON_UNSPECIFIED);
+
+		skb_put_data(rx.skb, &reason, sizeof(reason));
+		}
+		break;
+	}
+
+	KUNIT_EXPECT_EQ(test,
+			(__force u32)ieee80211_drop_unencrypted_mgmt(&rx),
+			(__force u32)params->result);
+}
+
+static struct kunit_case mfp_test_cases[] = {
+	KUNIT_CASE_PARAM(accept_mfp, accept_mfp_gen_params),
+	{}
+};
+
+static struct kunit_suite mfp = {
+	.name = "mac80211-mfp",
+	.test_cases = mfp_test_cases,
+};
+
+kunit_test_suite(mfp);