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fuzz/virtio-blk: remove fork-based fuzzer

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Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
This commit is contained in:
Alexander Bulekov 2023-02-04 23:29:48 -05:00
parent 5f47d07fd8
commit 725767e9a1
1 changed files with 7 additions and 44 deletions
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51
tests/qtest/fuzz/virtio_blk_fuzz.c
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@ -19,7 +19,6 @@
#include "standard-headers/linux/virtio_pci.h" #include "standard-headers/linux/virtio_pci.h"
#include "standard-headers/linux/virtio_blk.h" #include "standard-headers/linux/virtio_blk.h"
#include "fuzz.h" #include "fuzz.h"
#include "fork_fuzz.h"
#include "qos_fuzz.h" #include "qos_fuzz.h"
#define TEST_IMAGE_SIZE (64 * 1024 * 1024) #define TEST_IMAGE_SIZE (64 * 1024 * 1024)
@ -128,48 +127,24 @@ static void virtio_blk_fuzz(QTestState *s, QVirtioBlkQueues* queues,
} }
} }
static void virtio_blk_fork_fuzz(QTestState *s,
const unsigned char *Data, size_t Size)
{
QVirtioBlk *blk = fuzz_qos_obj;
static QVirtioBlkQueues *queues;
if (!queues) {
queues = qvirtio_blk_init(blk->vdev, 0);
}
if (fork() == 0) {
virtio_blk_fuzz(s, queues, Data, Size);
flush_events(s);
_Exit(0);
} else {
flush_events(s);
wait(NULL);
}
}
static void virtio_blk_with_flag_fuzz(QTestState *s, static void virtio_blk_with_flag_fuzz(QTestState *s,
const unsigned char *Data, size_t Size) const unsigned char *Data, size_t Size)
{ {
QVirtioBlk *blk = fuzz_qos_obj; QVirtioBlk *blk = fuzz_qos_obj;
static QVirtioBlkQueues *queues; static QVirtioBlkQueues *queues;
if (fork() == 0) { if (Size >= sizeof(uint64_t)) {
if (Size >= sizeof(uint64_t)) { queues = qvirtio_blk_init(blk->vdev, *(uint64_t *)Data);
queues = qvirtio_blk_init(blk->vdev, *(uint64_t *)Data); virtio_blk_fuzz(s, queues,
virtio_blk_fuzz(s, queues, Data + sizeof(uint64_t), Size - sizeof(uint64_t));
Data + sizeof(uint64_t), Size - sizeof(uint64_t));
flush_events(s);
}
_Exit(0);
} else {
flush_events(s); flush_events(s);
wait(NULL);
} }
fuzz_reset(s);
} }
static void virtio_blk_pre_fuzz(QTestState *s) static void virtio_blk_pre_fuzz(QTestState *s)
{ {
qos_init_path(s); qos_init_path(s);
counter_shm_init();
} }
static void drive_destroy(void *path) static void drive_destroy(void *path)
@ -208,22 +183,10 @@ static void *virtio_blk_test_setup(GString *cmd_line, void *arg)
static void register_virtio_blk_fuzz_targets(void) static void register_virtio_blk_fuzz_targets(void)
{ {
fuzz_add_qos_target(&(FuzzTarget){
.name = "virtio-blk-fuzz",
.description = "Fuzz the virtio-blk virtual queues, forking "
"for each fuzz run",
.pre_vm_init = &counter_shm_init,
.pre_fuzz = &virtio_blk_pre_fuzz,
.fuzz = virtio_blk_fork_fuzz,},
"virtio-blk",
&(QOSGraphTestOptions){.before = virtio_blk_test_setup}
);
fuzz_add_qos_target(&(FuzzTarget){ fuzz_add_qos_target(&(FuzzTarget){
.name = "virtio-blk-flags-fuzz", .name = "virtio-blk-flags-fuzz",
.description = "Fuzz the virtio-blk virtual queues, forking " .description = "Fuzz the virtio-blk virtual queues. "
"for each fuzz run (also fuzzes the virtio flags)", "Also fuzzes the virtio flags)",
.pre_vm_init = &counter_shm_init,
.pre_fuzz = &virtio_blk_pre_fuzz, .pre_fuzz = &virtio_blk_pre_fuzz,
.fuzz = virtio_blk_with_flag_fuzz,}, .fuzz = virtio_blk_with_flag_fuzz,},
"virtio-blk", "virtio-blk",