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Wi-Fi emulation (QEMU-99) #23

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JiaDuo opened this issue Dec 9, 2021 · 4 comments
Closed

Wi-Fi emulation (QEMU-99) #23

JiaDuo opened this issue Dec 9, 2021 · 4 comments
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Resolution: Duplicate Status: Done Issue is done internally

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@JiaDuo
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JiaDuo commented Dec 9, 2021

Can this support wifi module？ how to run wifi case？
I have no idea.

thanks~
@igrr
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igrr commented Dec 9, 2021

There is no Wi-Fi emulation, unfortunately. You can still try to use Ethernet emulation as described on the wiki page if you'd like to test some higher level networking protocols (http, mqtt, and so on).

@JiaDuo
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JiaDuo commented Dec 9, 2021

I will try more example.

thanks~

@igrr igrr changed the title Is there a case that can run wifi? Wi-Fi emulation Dec 16, 2021
@igrr igrr closed this as completed Dec 16, 2021
amotl referenced this issue Feb 3, 2022
@igrr
hw/xtensa: add ESP32 machine
440ff71
igrr pushed a commit that referenced this issue Aug 2, 2022
@philmd @huth
tests/qtest/intel-hda-test: Add reproducer for issue #542
19a5452 
Include the qtest reproducer provided by Alexander Bulekov
in https://gitlab.com/qemu-project/qemu/-/issues/542.
Without the previous commit, we get:

  $ make check-qtest-i386
  ...
  Running test tests/qtest/intel-hda-test
  AddressSanitizer:DEADLYSIGNAL
  =================================================================
  ==1580408==ERROR: AddressSanitizer: stack-overflow on address 0x7ffc3d566fe0
      #0 0x63d297cf in address_space_translate_internal softmmu/physmem.c:356
      #1 0x63d27260 in flatview_do_translate softmmu/physmem.c:499:15
      #2 0x63d27af5 in flatview_translate softmmu/physmem.c:565:15
      #3 0x63d4ce84 in flatview_write softmmu/physmem.c:2850:10
      #4 0x63d4cb18 in address_space_write softmmu/physmem.c:2950:18
      #5 0x63d4d387 in address_space_rw softmmu/physmem.c:2960:16
      #6 0x62ae12f2 in dma_memory_rw_relaxed include/sysemu/dma.h:89:12
      #7 0x62ae104a in dma_memory_rw include/sysemu/dma.h:132:12
      #8 0x62ae6157 in dma_memory_write include/sysemu/dma.h:173:12
      #9 0x62ae5ec0 in stl_le_dma include/sysemu/dma.h:275:1
      #10 0x62ae5ba2 in stl_le_pci_dma include/hw/pci/pci.h:871:1
      #11 0x62ad59a6 in intel_hda_response hw/audio/intel-hda.c:372:12
      #12 0x62ad2afb in hda_codec_response hw/audio/intel-hda.c:107:5
      #13 0x62aec4e1 in hda_audio_command hw/audio/hda-codec.c:655:5
      #14 0x62ae05d9 in intel_hda_send_command hw/audio/intel-hda.c:307:5
      #15 0x62adff54 in intel_hda_corb_run hw/audio/intel-hda.c:342:9
      #16 0x62adc13b in intel_hda_set_corb_wp hw/audio/intel-hda.c:548:5
      #17 0x62ae5942 in intel_hda_reg_write hw/audio/intel-hda.c:977:9
      #18 0x62ada10a in intel_hda_mmio_write hw/audio/intel-hda.c:1054:5
      #19 0x63d8f383 in memory_region_write_accessor softmmu/memory.c:492:5
      #20 0x63d8ecc1 in access_with_adjusted_size softmmu/memory.c:554:18
      #21 0x63d8d5d6 in memory_region_dispatch_write softmmu/memory.c:1504:16
      #22 0x63d5e85e in flatview_write_continue softmmu/physmem.c:2812:23
      #23 0x63d4d05b in flatview_write softmmu/physmem.c:2854:12
      #24 0x63d4cb18 in address_space_write softmmu/physmem.c:2950:18
      #25 0x63d4d387 in address_space_rw softmmu/physmem.c:2960:16
      #26 0x62ae12f2 in dma_memory_rw_relaxed include/sysemu/dma.h:89:12
      #27 0x62ae104a in dma_memory_rw include/sysemu/dma.h:132:12
      #28 0x62ae6157 in dma_memory_write include/sysemu/dma.h:173:12
      #29 0x62ae5ec0 in stl_le_dma include/sysemu/dma.h:275:1
      #30 0x62ae5ba2 in stl_le_pci_dma include/hw/pci/pci.h:871:1
      #31 0x62ad59a6 in intel_hda_response hw/audio/intel-hda.c:372:12
      #32 0x62ad2afb in hda_codec_response hw/audio/intel-hda.c:107:5
      #33 0x62aec4e1 in hda_audio_command hw/audio/hda-codec.c:655:5
      #34 0x62ae05d9 in intel_hda_send_command hw/audio/intel-hda.c:307:5
      #35 0x62adff54 in intel_hda_corb_run hw/audio/intel-hda.c:342:9
      #36 0x62adc13b in intel_hda_set_corb_wp hw/audio/intel-hda.c:548:5
      #37 0x62ae5942 in intel_hda_reg_write hw/audio/intel-hda.c:977:9
      #38 0x62ada10a in intel_hda_mmio_write hw/audio/intel-hda.c:1054:5
      #39 0x63d8f383 in memory_region_write_accessor softmmu/memory.c:492:5
      #40 0x63d8ecc1 in access_with_adjusted_size softmmu/memory.c:554:18
      #41 0x63d8d5d6 in memory_region_dispatch_write softmmu/memory.c:1504:16
      #42 0x63d5e85e in flatview_write_continue softmmu/physmem.c:2812:23
      #43 0x63d4d05b in flatview_write softmmu/physmem.c:2854:12
      #44 0x63d4cb18 in address_space_write softmmu/physmem.c:2950:18
      #45 0x63d4d387 in address_space_rw softmmu/physmem.c:2960:16
      #46 0x62ae12f2 in dma_memory_rw_relaxed include/sysemu/dma.h:89:12
      qemu#47 0x62ae104a in dma_memory_rw include/sysemu/dma.h:132:12
      #48 0x62ae6157 in dma_memory_write include/sysemu/dma.h:173:12
      ...
  SUMMARY: AddressSanitizer: stack-overflow softmmu/physmem.c:356 in address_space_translate_internal
  ==1580408==ABORTING
  Broken pipe
  Aborted (core dumped)

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20211218160912.1591633-4-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
igrr pushed a commit that referenced this issue Aug 2, 2022
@philmd @huth
hw/sd/sdhci: Prohibit DMA accesses to devices
799f7f0 
The issue reported by OSS-Fuzz produces the following backtrace:

  ==447470==ERROR: AddressSanitizer: heap-buffer-overflow
  READ of size 1 at 0x61500002a080 thread T0
      #0 0x71766d47 in sdhci_read_dataport hw/sd/sdhci.c:474:18
      #1 0x7175f139 in sdhci_read hw/sd/sdhci.c:1022:19
      #2 0x721b937b in memory_region_read_accessor softmmu/memory.c:440:11
      #3 0x72171e51 in access_with_adjusted_size softmmu/memory.c:554:18
      #4 0x7216f47c in memory_region_dispatch_read1 softmmu/memory.c:1424:16
      #5 0x7216ebb9 in memory_region_dispatch_read softmmu/memory.c:1452:9
      #6 0x7212db5d in flatview_read_continue softmmu/physmem.c:2879:23
      #7 0x7212f958 in flatview_read softmmu/physmem.c:2921:12
      #8 0x7212f418 in address_space_read_full softmmu/physmem.c:2934:18
      #9 0x721305a9 in address_space_rw softmmu/physmem.c:2962:16
      #10 0x7175a392 in dma_memory_rw_relaxed include/sysemu/dma.h:89:12
      #11 0x7175a0ea in dma_memory_rw include/sysemu/dma.h:132:12
      #12 0x71759684 in dma_memory_read include/sysemu/dma.h:152:12
      #13 0x7175518c in sdhci_do_adma hw/sd/sdhci.c:823:27
      #14 0x7174bf69 in sdhci_data_transfer hw/sd/sdhci.c:935:13
      #15 0x7176aaa7 in sdhci_send_command hw/sd/sdhci.c:376:9
      #16 0x717629ee in sdhci_write hw/sd/sdhci.c:1212:9
      #17 0x72172513 in memory_region_write_accessor softmmu/memory.c:492:5
      #18 0x72171e51 in access_with_adjusted_size softmmu/memory.c:554:18
      #19 0x72170766 in memory_region_dispatch_write softmmu/memory.c:1504:16
      #20 0x721419ee in flatview_write_continue softmmu/physmem.c:2812:23
      #21 0x721301eb in flatview_write softmmu/physmem.c:2854:12
      #22 0x7212fca8 in address_space_write softmmu/physmem.c:2950:18
      #23 0x721d9a53 in qtest_process_command softmmu/qtest.c:727:9

A DMA descriptor is previously filled in RAM. An I/O access to the
device (frames #22 to #16) start the DMA engine (frame #13). The
engine fetch the descriptor and execute the request, which itself
accesses the SDHCI I/O registers (frame #1 and #0), triggering a
re-entrancy issue.

Fix by prohibit transactions from the DMA to devices. The DMA engine
is thus restricted to memories.

Reported-by: OSS-Fuzz (Issue 36391)
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/451
Message-Id: <20211215205656.488940-3-philmd@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
igrr pushed a commit that referenced this issue Aug 2, 2022
@philmd @huth
tests/qtest/fuzz-sdcard-test: Add reproducer for OSS-Fuzz (Issue 29225)
2780116 
Include the qtest reproducer provided by Alexander Bulekov
in https://gitlab.com/qemu-project/qemu/-/issues/451. Without
the previous commit, we get:

  $ make check-qtest-i386
  ...
  Running test qtest-i386/fuzz-sdcard-test
  ==447470==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61500002a080 at pc 0x564c71766d48 bp 0x7ffc126c62b0 sp 0x7ffc126c62a8
  READ of size 1 at 0x61500002a080 thread T0
      #0 0x564c71766d47 in sdhci_read_dataport hw/sd/sdhci.c:474:18
      #1 0x564c7175f139 in sdhci_read hw/sd/sdhci.c:1022:19
      #2 0x564c721b937b in memory_region_read_accessor softmmu/memory.c:440:11
      #3 0x564c72171e51 in access_with_adjusted_size softmmu/memory.c:554:18
      #4 0x564c7216f47c in memory_region_dispatch_read1 softmmu/memory.c:1424:16
      #5 0x564c7216ebb9 in memory_region_dispatch_read softmmu/memory.c:1452:9
      #6 0x564c7212db5d in flatview_read_continue softmmu/physmem.c:2879:23
      #7 0x564c7212f958 in flatview_read softmmu/physmem.c:2921:12
      #8 0x564c7212f418 in address_space_read_full softmmu/physmem.c:2934:18
      #9 0x564c721305a9 in address_space_rw softmmu/physmem.c:2962:16
      #10 0x564c7175a392 in dma_memory_rw_relaxed include/sysemu/dma.h:89:12
      #11 0x564c7175a0ea in dma_memory_rw include/sysemu/dma.h:132:12
      #12 0x564c71759684 in dma_memory_read include/sysemu/dma.h:152:12
      #13 0x564c7175518c in sdhci_do_adma hw/sd/sdhci.c:823:27
      #14 0x564c7174bf69 in sdhci_data_transfer hw/sd/sdhci.c:935:13
      #15 0x564c7176aaa7 in sdhci_send_command hw/sd/sdhci.c:376:9
      #16 0x564c717629ee in sdhci_write hw/sd/sdhci.c:1212:9
      #17 0x564c72172513 in memory_region_write_accessor softmmu/memory.c:492:5
      #18 0x564c72171e51 in access_with_adjusted_size softmmu/memory.c:554:18
      #19 0x564c72170766 in memory_region_dispatch_write softmmu/memory.c:1504:16
      #20 0x564c721419ee in flatview_write_continue softmmu/physmem.c:2812:23
      #21 0x564c721301eb in flatview_write softmmu/physmem.c:2854:12
      #22 0x564c7212fca8 in address_space_write softmmu/physmem.c:2950:18
      #23 0x564c721d9a53 in qtest_process_command softmmu/qtest.c:727:9

  0x61500002a080 is located 0 bytes to the right of 512-byte region [0x615000029e80,0x61500002a080)
  allocated by thread T0 here:
      #0 0x564c708e1737 in __interceptor_calloc (qemu-system-i386+0x1e6a737)
      #1 0x7ff05567b5e0 in g_malloc0 (/lib64/libglib-2.0.so.0+0x5a5e0)
      #2 0x564c71774adb in sdhci_pci_realize hw/sd/sdhci-pci.c:36:5

  SUMMARY: AddressSanitizer: heap-buffer-overflow hw/sd/sdhci.c:474:18 in sdhci_read_dataport
  Shadow bytes around the buggy address:
    0x0c2a7fffd3c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
    0x0c2a7fffd3d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    0x0c2a7fffd3e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    0x0c2a7fffd3f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    0x0c2a7fffd400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  =>0x0c2a7fffd410:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
    0x0c2a7fffd420: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
    0x0c2a7fffd430: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
    0x0c2a7fffd440: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
    0x0c2a7fffd450: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
    0x0c2a7fffd460: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  Shadow byte legend (one shadow byte represents 8 application bytes):
    Addressable:           00
    Heap left redzone:       fa
    Freed heap region:       fd
  ==447470==ABORTING
  Broken pipe
  ERROR qtest-i386/fuzz-sdcard-test - too few tests run (expected 3, got 2)

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20211215205656.488940-4-philmd@redhat.com>
[thuth: Replaced "-m 4G" with "-m 512M"]
Signed-off-by: Thomas Huth <thuth@redhat.com>
@pptz
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pptz commented Feb 10, 2023

Perhaps it's worth noting explicitly in the wiki page that WiFi is not supported (and must be disabled in menuconfig).

@github-actions github-actions bot changed the title Wi-Fi emulation Wi-Fi emulation (QEMU-99) Feb 10, 2023
mattiantonini pushed a commit to mattiantonini/ESP32-QEMU that referenced this issue Feb 23, 2023
@cota @stsquad
util/qht: use striped locks under TSAN
68f7b2b 
Fixes this tsan crash, easy to reproduce with any large enough program:

$ tests/unit/test-qht
1..2
ThreadSanitizer: CHECK failed: sanitizer_deadlock_detector.h:67 "((n_all_locks_)) < (((sizeof(all_locks_with_contexts_)/sizeof((all_locks_with_contexts_)[0]))))" (0x40, 0x40) (tid=1821568)
    #0 __tsan::CheckUnwind() ../../../../src/libsanitizer/tsan/tsan_rtl.cpp:353 (libtsan.so.2+0x90034)
    #1 __sanitizer::CheckFailed(char const*, int, char const*, unsigned long long, unsigned long long) ../../../../src/libsanitizer/sanitizer_common/sanitizer_termination.cpp:86 (libtsan.so.2+0xca555)
    espressif#2 __sanitizer::DeadlockDetectorTLS<__sanitizer::TwoLevelBitVector<1ul, __sanitizer::BasicBitVector<unsigned long> > >::addLock(unsigned long, unsigned long, unsigned int) ../../../../src/libsanitizer/sanitizer_common/sanitizer_deadlock_detector.h:67 (libtsan.so.2+0xb3616)
    espressif#3 __sanitizer::DeadlockDetectorTLS<__sanitizer::TwoLevelBitVector<1ul, __sanitizer::BasicBitVector<unsigned long> > >::addLock(unsigned long, unsigned long, unsigned int) ../../../../src/libsanitizer/sanitizer_common/sanitizer_deadlock_detector.h:59 (libtsan.so.2+0xb3616)
    espressif#4 __sanitizer::DeadlockDetector<__sanitizer::TwoLevelBitVector<1ul, __sanitizer::BasicBitVector<unsigned long> > >::onLockAfter(__sanitizer::DeadlockDetectorTLS<__sanitizer::TwoLevelBitVector<1ul, __sanitizer::BasicBitVector<unsigned long> > >*, unsigned long, unsigned int) ../../../../src/libsanitizer/sanitizer_common/sanitizer_deadlock_detector.h:216 (libtsan.so.2+0xb3616)
    espressif#5 __sanitizer::DD::MutexAfterLock(__sanitizer::DDCallback*, __sanitizer::DDMutex*, bool, bool) ../../../../src/libsanitizer/sanitizer_common/sanitizer_deadlock_detector1.cpp:169 (libtsan.so.2+0xb3616)
    espressif#6 __tsan::MutexPostLock(__tsan::ThreadState*, unsigned long, unsigned long, unsigned int, int) ../../../../src/libsanitizer/tsan/tsan_rtl_mutex.cpp:200 (libtsan.so.2+0xa3382)
    espressif#7 __tsan_mutex_post_lock ../../../../src/libsanitizer/tsan/tsan_interface_ann.cpp:384 (libtsan.so.2+0x76bc3)
    espressif#8 qemu_spin_lock /home/cota/src/qemu/include/qemu/thread.h:259 (test-qht+0x44a97)
    espressif#9 qht_map_lock_buckets ../util/qht.c:253 (test-qht+0x44a97)
    espressif#10 do_qht_iter ../util/qht.c:809 (test-qht+0x45f33)
    espressif#11 qht_iter ../util/qht.c:821 (test-qht+0x45f33)
    espressif#12 iter_check ../tests/unit/test-qht.c:121 (test-qht+0xe473)
    espressif#13 qht_do_test ../tests/unit/test-qht.c:202 (test-qht+0xe473)
    espressif#14 qht_test ../tests/unit/test-qht.c:240 (test-qht+0xe7c1)
    espressif#15 test_default ../tests/unit/test-qht.c:246 (test-qht+0xe828)
    espressif#16 <null> <null> (libglib-2.0.so.0+0x7daed)
    espressif#17 <null> <null> (libglib-2.0.so.0+0x7d80a)
    espressif#18 <null> <null> (libglib-2.0.so.0+0x7d80a)
    espressif#19 g_test_run_suite <null> (libglib-2.0.so.0+0x7dfe9)
    espressif#20 g_test_run <null> (libglib-2.0.so.0+0x7e055)
    espressif#21 main ../tests/unit/test-qht.c:259 (test-qht+0xd2c6)
    espressif#22 __libc_start_call_main ../sysdeps/nptl/libc_start_call_main.h:58 (libc.so.6+0x29d8f)
    espressif#23 __libc_start_main_impl ../csu/libc-start.c:392 (libc.so.6+0x29e3f)
    espressif#24 _start <null> (test-qht+0xdb44)

Signed-off-by: Emilio Cota <cota@braap.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20230111151628.320011-5-cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230124180127.1881110-30-alex.bennee@linaro.org>
@redfast00
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In progress, see #80

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@igrr @redfast00 @JiaDuo @pptz @espressif-bot