diff mbox series

[2/3] tests/cdboot: Test booting from CD-ROM ISO image file

Message ID 1521100145-15304-3-git-send-email-thuth@redhat.com
State New
Headers show
Series Add new CD-ROM related qtests | expand

Commit Message

Thomas Huth March 15, 2018, 7:49 a.m. UTC
We already have the code for a boot file in tests/boot-sector.c,
so if the genisoimage program is available, we can easily create
a bootable CD ISO image that we can use for testing whether our
CD-ROM emulation and the BIOS CD-ROM boot works correctly.

Signed-off-by: Thomas Huth <thuth@redhat.com>
---
 tests/Makefile.include |   3 +
 tests/cdrom-test.c     | 155 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 158 insertions(+)
 create mode 100644 tests/cdrom-test.c

Comments

Daniel P. Berrangé March 15, 2018, 9:21 a.m. UTC | #1
On Thu, Mar 15, 2018 at 08:49:04AM +0100, Thomas Huth wrote:
> We already have the code for a boot file in tests/boot-sector.c,
> so if the genisoimage program is available, we can easily create
> a bootable CD ISO image that we can use for testing whether our
> CD-ROM emulation and the BIOS CD-ROM boot works correctly.
> 
> Signed-off-by: Thomas Huth <thuth@redhat.com>
> ---
>  tests/Makefile.include |   3 +
>  tests/cdrom-test.c     | 155 +++++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 158 insertions(+)
>  create mode 100644 tests/cdrom-test.c
> 
> diff --git a/tests/Makefile.include b/tests/Makefile.include
> index ef9b88c..a104222 100644
> --- a/tests/Makefile.include
> +++ b/tests/Makefile.include
> @@ -304,6 +304,7 @@ check-qtest-i386-$(CONFIG_POSIX) += tests/test-filter-redirector$(EXESUF)
>  check-qtest-i386-y += tests/migration-test$(EXESUF)
>  check-qtest-i386-y += tests/test-x86-cpuid-compat$(EXESUF)
>  check-qtest-i386-y += tests/numa-test$(EXESUF)
> +check-qtest-i386-y += tests/cdrom-test$(EXESUF)
>  check-qtest-x86_64-y += $(check-qtest-i386-y)
>  check-qtest-x86_64-y += tests/sdhci-test$(EXESUF)
>  gcov-files-i386-y += i386-softmmu/hw/timer/mc146818rtc.c
> @@ -398,6 +399,7 @@ check-qtest-s390x-y += tests/virtio-balloon-test$(EXESUF)
>  check-qtest-s390x-y += tests/virtio-console-test$(EXESUF)
>  check-qtest-s390x-y += tests/virtio-serial-test$(EXESUF)
>  check-qtest-s390x-y += tests/cpu-plug-test$(EXESUF)
> +check-qtest-s390x-y += tests/cdrom-test$(EXESUF)
>  
>  check-qtest-generic-y += tests/qom-test$(EXESUF)
>  check-qtest-generic-y += tests/test-hmp$(EXESUF)
> @@ -829,6 +831,7 @@ tests/test-qapi-util$(EXESUF): tests/test-qapi-util.o $(test-util-obj-y)
>  tests/numa-test$(EXESUF): tests/numa-test.o
>  tests/vmgenid-test$(EXESUF): tests/vmgenid-test.o tests/boot-sector.o tests/acpi-utils.o
>  tests/sdhci-test$(EXESUF): tests/sdhci-test.o $(libqos-pc-obj-y)
> +tests/cdrom-test$(EXESUF): tests/cdrom-test.o tests/boot-sector.o $(libqos-obj-y)
>  
>  tests/migration/stress$(EXESUF): tests/migration/stress.o
>  	$(call quiet-command, $(LINKPROG) -static -O3 $(PTHREAD_LIB) -o $@ $< ,"LINK","$(TARGET_DIR)$@")
> diff --git a/tests/cdrom-test.c b/tests/cdrom-test.c
> new file mode 100644
> index 0000000..1fc5230
> --- /dev/null
> +++ b/tests/cdrom-test.c
> @@ -0,0 +1,155 @@
> +/*
> + * Various tests for emulated CD-ROM drives.
> + *
> + * Copyright (c) 2018 Red Hat Inc.
> + *
> + * Author:
> + *    Thomas Huth <thuth@redhat.com>
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2
> + * or later. See the COPYING file in the top-level directory.
> + */
> +
> +#include "qemu/osdep.h"
> +#include "libqtest.h"
> +#include "boot-sector.h"
> +
> +static char isoimage[] = "cdrom-boot-iso-XXXXXX";
> +
> +static int gen_iso(const char *fmt, ...)
> +{
> +    char *params, *command;
> +    va_list args;
> +    pid_t pid;
> +    int status;
> +
> +    pid = fork();
> +    if (pid == 0) {
> +        va_start(args, fmt);
> +        params = g_strdup_vprintf(fmt, args);
> +        va_end(args);
> +        command = g_strdup_printf("exec genisoimage %s", params);
> +        g_free(params);
> +        execlp("/bin/sh", "sh", "-c", command, NULL);
> +        exit(1);
> +    }
> +    wait(&status);

IMHO this should just use g_spawn_sync(), also the use of
shell seems rather unneccessary - why not just run genisoimage
directly ?

  https://developer.gnome.org/glib/stable/glib-Spawning-Processes.html#g-spawn-sync

> +
> +    return WEXITSTATUS(status);
> +}
> +
> +static int prepare_image(const char *arch, char *isoimage)
> +{
> +    char srcdir[] = "cdrom-test-dir-XXXXXX";
> +    char *codefile = NULL;
> +    int ifh, ret = -1;
> +
> +    ifh = mkstemp(isoimage);
> +    if (ifh < 0) {
> +        perror("Error creating temporary iso image file");
> +        return -1;
> +    }
> +    if (!mkdtemp(srcdir)) {
> +        perror("Error creating temporary directory");
> +        goto cleanup;
> +    }
> +
> +    if (g_str_equal(arch, "i386") || g_str_equal(arch, "x86_64") ||
> +        g_str_equal(arch, "s390x")) {
> +        codefile = g_strdup_printf("%s/bootcode-XXXXXX", srcdir);
> +        ret = boot_sector_init(codefile);
> +        if (ret) {
> +            goto cleanup;
> +        }
> +    } else {
> +        g_assert_not_reached();
> +    }
> +
> +    ret = gen_iso("-quiet -l -no-emul-boot -b %s -o %s %s",
> +                  strrchr(codefile, '/') + 1, isoimage, srcdir);

It would be easy to just declare the args as an array here

  char *genisoargv[] = {
    "genisoimage", "-quiet", "-l", "-no-emul-boot", "-b",
    strrchr(codefile, "/") + 1, "-o", isoimage, srcdir,
    NULL,
  };

to then pass to g_spawn_sync

> +    if (ret) {
> +        fprintf(stderr, "genisoimage failed: %i\n", ret);
> +    }
> +
> +    unlink(codefile);
> +
> +cleanup:
> +    g_free(codefile);
> +    rmdir(srcdir);
> +    close(ifh);
> +
> +    return ret;
> +}

Regards,
Daniel
Thomas Huth March 15, 2018, 10:48 a.m. UTC | #2
On 15.03.2018 10:21, Daniel P. Berrangé wrote:
> On Thu, Mar 15, 2018 at 08:49:04AM +0100, Thomas Huth wrote:
>> We already have the code for a boot file in tests/boot-sector.c,
>> so if the genisoimage program is available, we can easily create
>> a bootable CD ISO image that we can use for testing whether our
>> CD-ROM emulation and the BIOS CD-ROM boot works correctly.
>>
>> Signed-off-by: Thomas Huth <thuth@redhat.com>
>> ---
>>  tests/Makefile.include |   3 +
>>  tests/cdrom-test.c     | 155 +++++++++++++++++++++++++++++++++++++++++++++++++
>>  2 files changed, 158 insertions(+)
>>  create mode 100644 tests/cdrom-test.c
>>
>> diff --git a/tests/Makefile.include b/tests/Makefile.include
>> index ef9b88c..a104222 100644
>> --- a/tests/Makefile.include
>> +++ b/tests/Makefile.include
>> @@ -304,6 +304,7 @@ check-qtest-i386-$(CONFIG_POSIX) += tests/test-filter-redirector$(EXESUF)
>>  check-qtest-i386-y += tests/migration-test$(EXESUF)
>>  check-qtest-i386-y += tests/test-x86-cpuid-compat$(EXESUF)
>>  check-qtest-i386-y += tests/numa-test$(EXESUF)
>> +check-qtest-i386-y += tests/cdrom-test$(EXESUF)
>>  check-qtest-x86_64-y += $(check-qtest-i386-y)
>>  check-qtest-x86_64-y += tests/sdhci-test$(EXESUF)
>>  gcov-files-i386-y += i386-softmmu/hw/timer/mc146818rtc.c
>> @@ -398,6 +399,7 @@ check-qtest-s390x-y += tests/virtio-balloon-test$(EXESUF)
>>  check-qtest-s390x-y += tests/virtio-console-test$(EXESUF)
>>  check-qtest-s390x-y += tests/virtio-serial-test$(EXESUF)
>>  check-qtest-s390x-y += tests/cpu-plug-test$(EXESUF)
>> +check-qtest-s390x-y += tests/cdrom-test$(EXESUF)
>>  
>>  check-qtest-generic-y += tests/qom-test$(EXESUF)
>>  check-qtest-generic-y += tests/test-hmp$(EXESUF)
>> @@ -829,6 +831,7 @@ tests/test-qapi-util$(EXESUF): tests/test-qapi-util.o $(test-util-obj-y)
>>  tests/numa-test$(EXESUF): tests/numa-test.o
>>  tests/vmgenid-test$(EXESUF): tests/vmgenid-test.o tests/boot-sector.o tests/acpi-utils.o
>>  tests/sdhci-test$(EXESUF): tests/sdhci-test.o $(libqos-pc-obj-y)
>> +tests/cdrom-test$(EXESUF): tests/cdrom-test.o tests/boot-sector.o $(libqos-obj-y)
>>  
>>  tests/migration/stress$(EXESUF): tests/migration/stress.o
>>  	$(call quiet-command, $(LINKPROG) -static -O3 $(PTHREAD_LIB) -o $@ $< ,"LINK","$(TARGET_DIR)$@")
>> diff --git a/tests/cdrom-test.c b/tests/cdrom-test.c
>> new file mode 100644
>> index 0000000..1fc5230
>> --- /dev/null
>> +++ b/tests/cdrom-test.c
>> @@ -0,0 +1,155 @@
>> +/*
>> + * Various tests for emulated CD-ROM drives.
>> + *
>> + * Copyright (c) 2018 Red Hat Inc.
>> + *
>> + * Author:
>> + *    Thomas Huth <thuth@redhat.com>
>> + *
>> + * This work is licensed under the terms of the GNU GPL, version 2
>> + * or later. See the COPYING file in the top-level directory.
>> + */
>> +
>> +#include "qemu/osdep.h"
>> +#include "libqtest.h"
>> +#include "boot-sector.h"
>> +
>> +static char isoimage[] = "cdrom-boot-iso-XXXXXX";
>> +
>> +static int gen_iso(const char *fmt, ...)
>> +{
>> +    char *params, *command;
>> +    va_list args;
>> +    pid_t pid;
>> +    int status;
>> +
>> +    pid = fork();
>> +    if (pid == 0) {
>> +        va_start(args, fmt);
>> +        params = g_strdup_vprintf(fmt, args);
>> +        va_end(args);
>> +        command = g_strdup_printf("exec genisoimage %s", params);
>> +        g_free(params);
>> +        execlp("/bin/sh", "sh", "-c", command, NULL);
>> +        exit(1);
>> +    }
>> +    wait(&status);
> 
> IMHO this should just use g_spawn_sync(), also the use of
> shell seems rather unneccessary - why not just run genisoimage
> directly ?

That code was simply "inspired" from the execlp() code in
qtest_init_without_qmp_handshake() ... but g_spawn_sync() sounds like a
good alternative here, so I'll try to switch to that one instead.

 Thanks,
  Thomas
Eric Blake March 15, 2018, 11:57 a.m. UTC | #3
On 03/15/2018 05:48 AM, Thomas Huth wrote:

>>> +    pid = fork();
>>> +    if (pid == 0) {
>>> +        va_start(args, fmt);
>>> +        params = g_strdup_vprintf(fmt, args);
>>> +        va_end(args);
>>> +        command = g_strdup_printf("exec genisoimage %s", params);
>>> +        g_free(params);
>>> +        execlp("/bin/sh", "sh", "-c", command, NULL);
>>> +        exit(1);
>>> +    }
>>> +    wait(&status);
>>
>> IMHO this should just use g_spawn_sync(), also the use of
>> shell seems rather unneccessary

and potentially dangerous - if we aren't absolutely positive that we 
aren't going to improperly expand shell metacharacters embedded in params.

>> - why not just run genisoimage
>> directly ?
> 
> That code was simply "inspired" from the execlp() code in
> qtest_init_without_qmp_handshake()

Sounds like a good idea for a future cleanup patch ;)
diff mbox series

Patch

diff --git a/tests/Makefile.include b/tests/Makefile.include
index ef9b88c..a104222 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -304,6 +304,7 @@  check-qtest-i386-$(CONFIG_POSIX) += tests/test-filter-redirector$(EXESUF)
 check-qtest-i386-y += tests/migration-test$(EXESUF)
 check-qtest-i386-y += tests/test-x86-cpuid-compat$(EXESUF)
 check-qtest-i386-y += tests/numa-test$(EXESUF)
+check-qtest-i386-y += tests/cdrom-test$(EXESUF)
 check-qtest-x86_64-y += $(check-qtest-i386-y)
 check-qtest-x86_64-y += tests/sdhci-test$(EXESUF)
 gcov-files-i386-y += i386-softmmu/hw/timer/mc146818rtc.c
@@ -398,6 +399,7 @@  check-qtest-s390x-y += tests/virtio-balloon-test$(EXESUF)
 check-qtest-s390x-y += tests/virtio-console-test$(EXESUF)
 check-qtest-s390x-y += tests/virtio-serial-test$(EXESUF)
 check-qtest-s390x-y += tests/cpu-plug-test$(EXESUF)
+check-qtest-s390x-y += tests/cdrom-test$(EXESUF)
 
 check-qtest-generic-y += tests/qom-test$(EXESUF)
 check-qtest-generic-y += tests/test-hmp$(EXESUF)
@@ -829,6 +831,7 @@  tests/test-qapi-util$(EXESUF): tests/test-qapi-util.o $(test-util-obj-y)
 tests/numa-test$(EXESUF): tests/numa-test.o
 tests/vmgenid-test$(EXESUF): tests/vmgenid-test.o tests/boot-sector.o tests/acpi-utils.o
 tests/sdhci-test$(EXESUF): tests/sdhci-test.o $(libqos-pc-obj-y)
+tests/cdrom-test$(EXESUF): tests/cdrom-test.o tests/boot-sector.o $(libqos-obj-y)
 
 tests/migration/stress$(EXESUF): tests/migration/stress.o
 	$(call quiet-command, $(LINKPROG) -static -O3 $(PTHREAD_LIB) -o $@ $< ,"LINK","$(TARGET_DIR)$@")
diff --git a/tests/cdrom-test.c b/tests/cdrom-test.c
new file mode 100644
index 0000000..1fc5230
--- /dev/null
+++ b/tests/cdrom-test.c
@@ -0,0 +1,155 @@ 
+/*
+ * Various tests for emulated CD-ROM drives.
+ *
+ * Copyright (c) 2018 Red Hat Inc.
+ *
+ * Author:
+ *    Thomas Huth <thuth@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2
+ * or later. See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "libqtest.h"
+#include "boot-sector.h"
+
+static char isoimage[] = "cdrom-boot-iso-XXXXXX";
+
+static int gen_iso(const char *fmt, ...)
+{
+    char *params, *command;
+    va_list args;
+    pid_t pid;
+    int status;
+
+    pid = fork();
+    if (pid == 0) {
+        va_start(args, fmt);
+        params = g_strdup_vprintf(fmt, args);
+        va_end(args);
+        command = g_strdup_printf("exec genisoimage %s", params);
+        g_free(params);
+        execlp("/bin/sh", "sh", "-c", command, NULL);
+        exit(1);
+    }
+    wait(&status);
+
+    return WEXITSTATUS(status);
+}
+
+static int prepare_image(const char *arch, char *isoimage)
+{
+    char srcdir[] = "cdrom-test-dir-XXXXXX";
+    char *codefile = NULL;
+    int ifh, ret = -1;
+
+    ifh = mkstemp(isoimage);
+    if (ifh < 0) {
+        perror("Error creating temporary iso image file");
+        return -1;
+    }
+    if (!mkdtemp(srcdir)) {
+        perror("Error creating temporary directory");
+        goto cleanup;
+    }
+
+    if (g_str_equal(arch, "i386") || g_str_equal(arch, "x86_64") ||
+        g_str_equal(arch, "s390x")) {
+        codefile = g_strdup_printf("%s/bootcode-XXXXXX", srcdir);
+        ret = boot_sector_init(codefile);
+        if (ret) {
+            goto cleanup;
+        }
+    } else {
+        g_assert_not_reached();
+    }
+
+    ret = gen_iso("-quiet -l -no-emul-boot -b %s -o %s %s",
+                  strrchr(codefile, '/') + 1, isoimage, srcdir);
+    if (ret) {
+        fprintf(stderr, "genisoimage failed: %i\n", ret);
+    }
+
+    unlink(codefile);
+
+cleanup:
+    g_free(codefile);
+    rmdir(srcdir);
+    close(ifh);
+
+    return ret;
+}
+
+static void test_cdboot(gconstpointer data)
+{
+    QTestState *qts;
+
+    qts = qtest_startf("-accel kvm:tcg -no-shutdown %s%s", (const char *)data,
+                       isoimage);
+    boot_sector_test(qts);
+    qtest_quit(qts);
+}
+
+static void add_x86_tests(void)
+{
+    qtest_add_data_func("cdboot/default", "-cdrom ", test_cdboot);
+    qtest_add_data_func("cdboot/virtio-scsi",
+                        "-device virtio-scsi -device scsi-cd,drive=cdr "
+                        "-blockdev file,node-name=cdr,filename=", test_cdboot);
+    qtest_add_data_func("cdboot/isapc", "-M isapc "
+                        "-drive if=ide,media=cdrom,file=", test_cdboot);
+    qtest_add_data_func("cdboot/am53c974",
+                        "-device am53c974 -device scsi-cd,drive=cd1 "
+                        "-drive if=none,id=cd1,format=raw,file=", test_cdboot);
+    qtest_add_data_func("cdboot/dc390",
+                        "-device dc390 -device scsi-cd,drive=cd1 "
+                        "-blockdev file,node-name=cd1,filename=", test_cdboot);
+    qtest_add_data_func("cdboot/lsi53c895a",
+                        "-device lsi53c895a -device scsi-cd,drive=cd1 "
+                        "-blockdev file,node-name=cd1,filename=", test_cdboot);
+    qtest_add_data_func("cdboot/megasas", "-M q35 "
+                        "-device megasas -device scsi-cd,drive=cd1 "
+                        "-blockdev file,node-name=cd1,filename=", test_cdboot);
+    qtest_add_data_func("cdboot/megasas-gen2", "-M q35 "
+                        "-device megasas-gen2 -device scsi-cd,drive=cd1 "
+                        "-blockdev file,node-name=cd1,filename=", test_cdboot);
+}
+
+static void add_s390x_tests(void)
+{
+    qtest_add_data_func("cdboot/default", "-cdrom ", test_cdboot);
+    qtest_add_data_func("cdboot/virtio-scsi",
+                        "-device virtio-scsi -device scsi-cd,drive=cdr "
+                        "-blockdev file,node-name=cdr,filename=", test_cdboot);
+}
+
+int main(int argc, char **argv)
+{
+    int ret;
+    const char *arch = qtest_get_arch();
+
+    g_test_init(&argc, &argv, NULL);
+
+    if (gen_iso("--version > /dev/null")) {
+        /* genisoimage not available - so can't run tests */
+        return 0;
+    }
+
+    ret = prepare_image(arch, isoimage);
+    if (ret) {
+        return ret;
+    }
+
+    if (g_str_equal(arch, "i386") || g_str_equal(arch, "x86_64")) {
+        add_x86_tests();
+    } else if (g_str_equal(arch, "s390x")) {
+        add_s390x_tests();
+    }
+
+    ret = g_test_run();
+
+    unlink(isoimage);
+
+    return ret;
+}