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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /tools/testing/selftests/arm64/mte/check_buffer_fill.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to 'tools/testing/selftests/arm64/mte/check_buffer_fill.c')
-rw-r--r--tools/testing/selftests/arm64/mte/check_buffer_fill.c478
1 files changed, 478 insertions, 0 deletions
diff --git a/tools/testing/selftests/arm64/mte/check_buffer_fill.c b/tools/testing/selftests/arm64/mte/check_buffer_fill.c
new file mode 100644
index 000000000..1dbbbd47d
--- /dev/null
+++ b/tools/testing/selftests/arm64/mte/check_buffer_fill.c
@@ -0,0 +1,478 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2020 ARM Limited
+
+#define _GNU_SOURCE
+
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "kselftest.h"
+#include "mte_common_util.h"
+#include "mte_def.h"
+
+#define OVERFLOW_RANGE MT_GRANULE_SIZE
+
+static int sizes[] = {
+ 1, 555, 1033, MT_GRANULE_SIZE - 1, MT_GRANULE_SIZE,
+ /* page size - 1*/ 0, /* page_size */ 0, /* page size + 1 */ 0
+};
+
+enum mte_block_test_alloc {
+ UNTAGGED_TAGGED,
+ TAGGED_UNTAGGED,
+ TAGGED_TAGGED,
+ BLOCK_ALLOC_MAX,
+};
+
+static int check_buffer_by_byte(int mem_type, int mode)
+{
+ char *ptr;
+ int i, j, item;
+ bool err;
+
+ mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG);
+ item = ARRAY_SIZE(sizes);
+
+ for (i = 0; i < item; i++) {
+ ptr = (char *)mte_allocate_memory(sizes[i], mem_type, 0, true);
+ if (check_allocated_memory(ptr, sizes[i], mem_type, true) != KSFT_PASS)
+ return KSFT_FAIL;
+ mte_initialize_current_context(mode, (uintptr_t)ptr, sizes[i]);
+ /* Set some value in tagged memory */
+ for (j = 0; j < sizes[i]; j++)
+ ptr[j] = '1';
+ mte_wait_after_trig();
+ err = cur_mte_cxt.fault_valid;
+ /* Check the buffer whether it is filled. */
+ for (j = 0; j < sizes[i] && !err; j++) {
+ if (ptr[j] != '1')
+ err = true;
+ }
+ mte_free_memory((void *)ptr, sizes[i], mem_type, true);
+
+ if (err)
+ break;
+ }
+ if (!err)
+ return KSFT_PASS;
+ else
+ return KSFT_FAIL;
+}
+
+static int check_buffer_underflow_by_byte(int mem_type, int mode,
+ int underflow_range)
+{
+ char *ptr;
+ int i, j, item, last_index;
+ bool err;
+ char *und_ptr = NULL;
+
+ mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG);
+ item = ARRAY_SIZE(sizes);
+ for (i = 0; i < item; i++) {
+ ptr = (char *)mte_allocate_memory_tag_range(sizes[i], mem_type, 0,
+ underflow_range, 0);
+ if (check_allocated_memory_range(ptr, sizes[i], mem_type,
+ underflow_range, 0) != KSFT_PASS)
+ return KSFT_FAIL;
+
+ mte_initialize_current_context(mode, (uintptr_t)ptr, -underflow_range);
+ last_index = 0;
+ /* Set some value in tagged memory and make the buffer underflow */
+ for (j = sizes[i] - 1; (j >= -underflow_range) &&
+ (!cur_mte_cxt.fault_valid); j--) {
+ ptr[j] = '1';
+ last_index = j;
+ }
+ mte_wait_after_trig();
+ err = false;
+ /* Check whether the buffer is filled */
+ for (j = 0; j < sizes[i]; j++) {
+ if (ptr[j] != '1') {
+ err = true;
+ ksft_print_msg("Buffer is not filled at index:%d of ptr:0x%lx\n",
+ j, ptr);
+ break;
+ }
+ }
+ if (err)
+ goto check_buffer_underflow_by_byte_err;
+
+ switch (mode) {
+ case MTE_NONE_ERR:
+ if (cur_mte_cxt.fault_valid == true || last_index != -underflow_range) {
+ err = true;
+ break;
+ }
+ /* There were no fault so the underflow area should be filled */
+ und_ptr = (char *) MT_CLEAR_TAG((size_t) ptr - underflow_range);
+ for (j = 0 ; j < underflow_range; j++) {
+ if (und_ptr[j] != '1') {
+ err = true;
+ break;
+ }
+ }
+ break;
+ case MTE_ASYNC_ERR:
+ /* Imprecise fault should occur otherwise return error */
+ if (cur_mte_cxt.fault_valid == false) {
+ err = true;
+ break;
+ }
+ /*
+ * The imprecise fault is checked after the write to the buffer,
+ * so the underflow area before the fault should be filled.
+ */
+ und_ptr = (char *) MT_CLEAR_TAG((size_t) ptr);
+ for (j = last_index ; j < 0 ; j++) {
+ if (und_ptr[j] != '1') {
+ err = true;
+ break;
+ }
+ }
+ break;
+ case MTE_SYNC_ERR:
+ /* Precise fault should occur otherwise return error */
+ if (!cur_mte_cxt.fault_valid || (last_index != (-1))) {
+ err = true;
+ break;
+ }
+ /* Underflow area should not be filled */
+ und_ptr = (char *) MT_CLEAR_TAG((size_t) ptr);
+ if (und_ptr[-1] == '1')
+ err = true;
+ break;
+ default:
+ err = true;
+ break;
+ }
+check_buffer_underflow_by_byte_err:
+ mte_free_memory_tag_range((void *)ptr, sizes[i], mem_type, underflow_range, 0);
+ if (err)
+ break;
+ }
+ return (err ? KSFT_FAIL : KSFT_PASS);
+}
+
+static int check_buffer_overflow_by_byte(int mem_type, int mode,
+ int overflow_range)
+{
+ char *ptr;
+ int i, j, item, last_index;
+ bool err;
+ size_t tagged_size, overflow_size;
+ char *over_ptr = NULL;
+
+ mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG);
+ item = ARRAY_SIZE(sizes);
+ for (i = 0; i < item; i++) {
+ ptr = (char *)mte_allocate_memory_tag_range(sizes[i], mem_type, 0,
+ 0, overflow_range);
+ if (check_allocated_memory_range(ptr, sizes[i], mem_type,
+ 0, overflow_range) != KSFT_PASS)
+ return KSFT_FAIL;
+
+ tagged_size = MT_ALIGN_UP(sizes[i]);
+
+ mte_initialize_current_context(mode, (uintptr_t)ptr, sizes[i] + overflow_range);
+
+ /* Set some value in tagged memory and make the buffer underflow */
+ for (j = 0, last_index = 0 ; (j < (sizes[i] + overflow_range)) &&
+ (cur_mte_cxt.fault_valid == false); j++) {
+ ptr[j] = '1';
+ last_index = j;
+ }
+ mte_wait_after_trig();
+ err = false;
+ /* Check whether the buffer is filled */
+ for (j = 0; j < sizes[i]; j++) {
+ if (ptr[j] != '1') {
+ err = true;
+ ksft_print_msg("Buffer is not filled at index:%d of ptr:0x%lx\n",
+ j, ptr);
+ break;
+ }
+ }
+ if (err)
+ goto check_buffer_overflow_by_byte_err;
+
+ overflow_size = overflow_range - (tagged_size - sizes[i]);
+
+ switch (mode) {
+ case MTE_NONE_ERR:
+ if ((cur_mte_cxt.fault_valid == true) ||
+ (last_index != (sizes[i] + overflow_range - 1))) {
+ err = true;
+ break;
+ }
+ /* There were no fault so the overflow area should be filled */
+ over_ptr = (char *) MT_CLEAR_TAG((size_t) ptr + tagged_size);
+ for (j = 0 ; j < overflow_size; j++) {
+ if (over_ptr[j] != '1') {
+ err = true;
+ break;
+ }
+ }
+ break;
+ case MTE_ASYNC_ERR:
+ /* Imprecise fault should occur otherwise return error */
+ if (cur_mte_cxt.fault_valid == false) {
+ err = true;
+ break;
+ }
+ /*
+ * The imprecise fault is checked after the write to the buffer,
+ * so the overflow area should be filled before the fault.
+ */
+ over_ptr = (char *) MT_CLEAR_TAG((size_t) ptr);
+ for (j = tagged_size ; j < last_index; j++) {
+ if (over_ptr[j] != '1') {
+ err = true;
+ break;
+ }
+ }
+ break;
+ case MTE_SYNC_ERR:
+ /* Precise fault should occur otherwise return error */
+ if (!cur_mte_cxt.fault_valid || (last_index != tagged_size)) {
+ err = true;
+ break;
+ }
+ /* Underflow area should not be filled */
+ over_ptr = (char *) MT_CLEAR_TAG((size_t) ptr + tagged_size);
+ for (j = 0 ; j < overflow_size; j++) {
+ if (over_ptr[j] == '1')
+ err = true;
+ }
+ break;
+ default:
+ err = true;
+ break;
+ }
+check_buffer_overflow_by_byte_err:
+ mte_free_memory_tag_range((void *)ptr, sizes[i], mem_type, 0, overflow_range);
+ if (err)
+ break;
+ }
+ return (err ? KSFT_FAIL : KSFT_PASS);
+}
+
+static int check_buffer_by_block_iterate(int mem_type, int mode, size_t size)
+{
+ char *src, *dst;
+ int j, result = KSFT_PASS;
+ enum mte_block_test_alloc alloc_type = UNTAGGED_TAGGED;
+
+ for (alloc_type = UNTAGGED_TAGGED; alloc_type < (int) BLOCK_ALLOC_MAX; alloc_type++) {
+ switch (alloc_type) {
+ case UNTAGGED_TAGGED:
+ src = (char *)mte_allocate_memory(size, mem_type, 0, false);
+ if (check_allocated_memory(src, size, mem_type, false) != KSFT_PASS)
+ return KSFT_FAIL;
+
+ dst = (char *)mte_allocate_memory(size, mem_type, 0, true);
+ if (check_allocated_memory(dst, size, mem_type, true) != KSFT_PASS) {
+ mte_free_memory((void *)src, size, mem_type, false);
+ return KSFT_FAIL;
+ }
+
+ break;
+ case TAGGED_UNTAGGED:
+ dst = (char *)mte_allocate_memory(size, mem_type, 0, false);
+ if (check_allocated_memory(dst, size, mem_type, false) != KSFT_PASS)
+ return KSFT_FAIL;
+
+ src = (char *)mte_allocate_memory(size, mem_type, 0, true);
+ if (check_allocated_memory(src, size, mem_type, true) != KSFT_PASS) {
+ mte_free_memory((void *)dst, size, mem_type, false);
+ return KSFT_FAIL;
+ }
+ break;
+ case TAGGED_TAGGED:
+ src = (char *)mte_allocate_memory(size, mem_type, 0, true);
+ if (check_allocated_memory(src, size, mem_type, true) != KSFT_PASS)
+ return KSFT_FAIL;
+
+ dst = (char *)mte_allocate_memory(size, mem_type, 0, true);
+ if (check_allocated_memory(dst, size, mem_type, true) != KSFT_PASS) {
+ mte_free_memory((void *)src, size, mem_type, true);
+ return KSFT_FAIL;
+ }
+ break;
+ default:
+ return KSFT_FAIL;
+ }
+
+ cur_mte_cxt.fault_valid = false;
+ result = KSFT_PASS;
+ mte_initialize_current_context(mode, (uintptr_t)dst, size);
+ /* Set some value in memory and copy*/
+ memset((void *)src, (int)'1', size);
+ memcpy((void *)dst, (void *)src, size);
+ mte_wait_after_trig();
+ if (cur_mte_cxt.fault_valid) {
+ result = KSFT_FAIL;
+ goto check_buffer_by_block_err;
+ }
+ /* Check the buffer whether it is filled. */
+ for (j = 0; j < size; j++) {
+ if (src[j] != dst[j] || src[j] != '1') {
+ result = KSFT_FAIL;
+ break;
+ }
+ }
+check_buffer_by_block_err:
+ mte_free_memory((void *)src, size, mem_type,
+ MT_FETCH_TAG((uintptr_t)src) ? true : false);
+ mte_free_memory((void *)dst, size, mem_type,
+ MT_FETCH_TAG((uintptr_t)dst) ? true : false);
+ if (result != KSFT_PASS)
+ return result;
+ }
+ return result;
+}
+
+static int check_buffer_by_block(int mem_type, int mode)
+{
+ int i, item, result = KSFT_PASS;
+
+ mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG);
+ item = ARRAY_SIZE(sizes);
+ cur_mte_cxt.fault_valid = false;
+ for (i = 0; i < item; i++) {
+ result = check_buffer_by_block_iterate(mem_type, mode, sizes[i]);
+ if (result != KSFT_PASS)
+ break;
+ }
+ return result;
+}
+
+static int compare_memory_tags(char *ptr, size_t size, int tag)
+{
+ int i, new_tag;
+
+ for (i = 0 ; i < size ; i += MT_GRANULE_SIZE) {
+ new_tag = MT_FETCH_TAG((uintptr_t)(mte_get_tag_address(ptr + i)));
+ if (tag != new_tag) {
+ ksft_print_msg("FAIL: child mte tag mismatch\n");
+ return KSFT_FAIL;
+ }
+ }
+ return KSFT_PASS;
+}
+
+static int check_memory_initial_tags(int mem_type, int mode, int mapping)
+{
+ char *ptr;
+ int run, fd;
+ int total = ARRAY_SIZE(sizes);
+
+ mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG);
+ for (run = 0; run < total; run++) {
+ /* check initial tags for anonymous mmap */
+ ptr = (char *)mte_allocate_memory(sizes[run], mem_type, mapping, false);
+ if (check_allocated_memory(ptr, sizes[run], mem_type, false) != KSFT_PASS)
+ return KSFT_FAIL;
+ if (compare_memory_tags(ptr, sizes[run], 0) != KSFT_PASS) {
+ mte_free_memory((void *)ptr, sizes[run], mem_type, false);
+ return KSFT_FAIL;
+ }
+ mte_free_memory((void *)ptr, sizes[run], mem_type, false);
+
+ /* check initial tags for file mmap */
+ fd = create_temp_file();
+ if (fd == -1)
+ return KSFT_FAIL;
+ ptr = (char *)mte_allocate_file_memory(sizes[run], mem_type, mapping, false, fd);
+ if (check_allocated_memory(ptr, sizes[run], mem_type, false) != KSFT_PASS) {
+ close(fd);
+ return KSFT_FAIL;
+ }
+ if (compare_memory_tags(ptr, sizes[run], 0) != KSFT_PASS) {
+ mte_free_memory((void *)ptr, sizes[run], mem_type, false);
+ close(fd);
+ return KSFT_FAIL;
+ }
+ mte_free_memory((void *)ptr, sizes[run], mem_type, false);
+ close(fd);
+ }
+ return KSFT_PASS;
+}
+
+int main(int argc, char *argv[])
+{
+ int err;
+ size_t page_size = getpagesize();
+ int item = ARRAY_SIZE(sizes);
+
+ sizes[item - 3] = page_size - 1;
+ sizes[item - 2] = page_size;
+ sizes[item - 1] = page_size + 1;
+
+ err = mte_default_setup();
+ if (err)
+ return err;
+
+ /* Register SIGSEGV handler */
+ mte_register_signal(SIGSEGV, mte_default_handler);
+
+ /* Set test plan */
+ ksft_set_plan(20);
+
+ /* Buffer by byte tests */
+ evaluate_test(check_buffer_by_byte(USE_MMAP, MTE_SYNC_ERR),
+ "Check buffer correctness by byte with sync err mode and mmap memory\n");
+ evaluate_test(check_buffer_by_byte(USE_MMAP, MTE_ASYNC_ERR),
+ "Check buffer correctness by byte with async err mode and mmap memory\n");
+ evaluate_test(check_buffer_by_byte(USE_MPROTECT, MTE_SYNC_ERR),
+ "Check buffer correctness by byte with sync err mode and mmap/mprotect memory\n");
+ evaluate_test(check_buffer_by_byte(USE_MPROTECT, MTE_ASYNC_ERR),
+ "Check buffer correctness by byte with async err mode and mmap/mprotect memory\n");
+
+ /* Check buffer underflow with underflow size as 16 */
+ evaluate_test(check_buffer_underflow_by_byte(USE_MMAP, MTE_SYNC_ERR, MT_GRANULE_SIZE),
+ "Check buffer write underflow by byte with sync mode and mmap memory\n");
+ evaluate_test(check_buffer_underflow_by_byte(USE_MMAP, MTE_ASYNC_ERR, MT_GRANULE_SIZE),
+ "Check buffer write underflow by byte with async mode and mmap memory\n");
+ evaluate_test(check_buffer_underflow_by_byte(USE_MMAP, MTE_NONE_ERR, MT_GRANULE_SIZE),
+ "Check buffer write underflow by byte with tag check fault ignore and mmap memory\n");
+
+ /* Check buffer underflow with underflow size as page size */
+ evaluate_test(check_buffer_underflow_by_byte(USE_MMAP, MTE_SYNC_ERR, page_size),
+ "Check buffer write underflow by byte with sync mode and mmap memory\n");
+ evaluate_test(check_buffer_underflow_by_byte(USE_MMAP, MTE_ASYNC_ERR, page_size),
+ "Check buffer write underflow by byte with async mode and mmap memory\n");
+ evaluate_test(check_buffer_underflow_by_byte(USE_MMAP, MTE_NONE_ERR, page_size),
+ "Check buffer write underflow by byte with tag check fault ignore and mmap memory\n");
+
+ /* Check buffer overflow with overflow size as 16 */
+ evaluate_test(check_buffer_overflow_by_byte(USE_MMAP, MTE_SYNC_ERR, MT_GRANULE_SIZE),
+ "Check buffer write overflow by byte with sync mode and mmap memory\n");
+ evaluate_test(check_buffer_overflow_by_byte(USE_MMAP, MTE_ASYNC_ERR, MT_GRANULE_SIZE),
+ "Check buffer write overflow by byte with async mode and mmap memory\n");
+ evaluate_test(check_buffer_overflow_by_byte(USE_MMAP, MTE_NONE_ERR, MT_GRANULE_SIZE),
+ "Check buffer write overflow by byte with tag fault ignore mode and mmap memory\n");
+
+ /* Buffer by block tests */
+ evaluate_test(check_buffer_by_block(USE_MMAP, MTE_SYNC_ERR),
+ "Check buffer write correctness by block with sync mode and mmap memory\n");
+ evaluate_test(check_buffer_by_block(USE_MMAP, MTE_ASYNC_ERR),
+ "Check buffer write correctness by block with async mode and mmap memory\n");
+ evaluate_test(check_buffer_by_block(USE_MMAP, MTE_NONE_ERR),
+ "Check buffer write correctness by block with tag fault ignore and mmap memory\n");
+
+ /* Initial tags are supposed to be 0 */
+ evaluate_test(check_memory_initial_tags(USE_MMAP, MTE_SYNC_ERR, MAP_PRIVATE),
+ "Check initial tags with private mapping, sync error mode and mmap memory\n");
+ evaluate_test(check_memory_initial_tags(USE_MPROTECT, MTE_SYNC_ERR, MAP_PRIVATE),
+ "Check initial tags with private mapping, sync error mode and mmap/mprotect memory\n");
+ evaluate_test(check_memory_initial_tags(USE_MMAP, MTE_SYNC_ERR, MAP_SHARED),
+ "Check initial tags with shared mapping, sync error mode and mmap memory\n");
+ evaluate_test(check_memory_initial_tags(USE_MPROTECT, MTE_SYNC_ERR, MAP_SHARED),
+ "Check initial tags with shared mapping, sync error mode and mmap/mprotect memory\n");
+
+ mte_restore_setup();
+ ksft_print_cnts();
+ return ksft_get_fail_cnt() == 0 ? KSFT_PASS : KSFT_FAIL;
+}