Merge remote-tracking branch 'kwolf/for-anthony' into staging

# By Fam Zheng (8) and others
# Via Kevin Wolf
* kwolf/for-anthony:
  vmdk: rename num_gtes_per_gte to num_gtes_per_gt
  vmdk: use heap allocation for whole_grain
  vmdk: check l1 size before opening image
  vmdk: check l2 table size when opening
  vmdk: check granularity field in opening
  qemu-iotests: add empty test case for vmdk
  qemu-iotests: add poke_file utility function
  vmdk: use unsigned values for on disk header fields
  vmdk: Make VMDK3Header and VmdkGrainMarker QEMU_PACKED
  sheepdog: add missing .bdrv_has_zero_init
  qemu-iotests: filter QEMU version in monitor banner
  iov: handle EOF in iov_send_recv
  ignore SIGPIPE in qemu-img and qemu-io
  qemu-img: Error out for excess arguments

Message-id: 1375799990-995-1-git-send-email-kwolf@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

block/sheepdog.c

@@ -2347,6 +2347,7 @@ static BlockDriver bdrv_sheepdog = {
     .bdrv_file_open = sd_open,
     .bdrv_close     = sd_close,
     .bdrv_create    = sd_create,
+    .bdrv_has_zero_init = bdrv_has_zero_init_1,
     .bdrv_getlength = sd_getlength,
     .bdrv_truncate  = sd_truncate,
 
@@ -2374,6 +2375,7 @@ static BlockDriver bdrv_sheepdog_tcp = {
     .bdrv_file_open = sd_open,
     .bdrv_close     = sd_close,
     .bdrv_create    = sd_create,
+    .bdrv_has_zero_init = bdrv_has_zero_init_1,
     .bdrv_getlength = sd_getlength,
     .bdrv_truncate  = sd_truncate,
 

block/vmdk.c

@@ -62,19 +62,20 @@ typedef struct {
     uint32_t cylinders;
     uint32_t heads;
     uint32_t sectors_per_track;
-} VMDK3Header;
+} QEMU_PACKED VMDK3Header;
 
 typedef struct {
     uint32_t version;
     uint32_t flags;
-    int64_t capacity;
-    int64_t granularity;
-    int64_t desc_offset;
-    int64_t desc_size;
-    int32_t num_gtes_per_gte;
-    int64_t rgd_offset;
-    int64_t gd_offset;
-    int64_t grain_offset;
+    uint64_t capacity;
+    uint64_t granularity;
+    uint64_t desc_offset;
+    uint64_t desc_size;
+    /* Number of GrainTableEntries per GrainTable */
+    uint32_t num_gtes_per_gt;
+    uint64_t rgd_offset;
+    uint64_t gd_offset;
+    uint64_t grain_offset;
     char filler[1];
     char check_bytes[4];
     uint16_t compressAlgorithm;
@@ -109,7 +110,7 @@ typedef struct VmdkExtent {
 
 typedef struct BDRVVmdkState {
     CoMutex lock;
-    int desc_offset;
+    uint64_t desc_offset;
     bool cid_updated;
     uint32_t parent_cid;
     int num_extents;
@@ -131,7 +132,7 @@ typedef struct VmdkGrainMarker {
     uint64_t lba;
     uint32_t size;
     uint8_t  data[0];
-} VmdkGrainMarker;
+} QEMU_PACKED VmdkGrainMarker;
 
 enum {
     MARKER_END_OF_STREAM    = 0,
@@ -385,15 +386,22 @@ static int vmdk_parent_open(BlockDriverState *bs)
 
 /* Create and append extent to the extent array. Return the added VmdkExtent
  * address. return NULL if allocation failed. */
-static VmdkExtent *vmdk_add_extent(BlockDriverState *bs,
+static int vmdk_add_extent(BlockDriverState *bs,
                            BlockDriverState *file, bool flat, int64_t sectors,
                            int64_t l1_offset, int64_t l1_backup_offset,
                            uint32_t l1_size,
-                           int l2_size, unsigned int cluster_sectors)
+                           int l2_size, uint64_t cluster_sectors,
+                           VmdkExtent **new_extent)
 {
     VmdkExtent *extent;
     BDRVVmdkState *s = bs->opaque;
 
+    if (cluster_sectors > 0x200000) {
+        /* 0x200000 * 512Bytes = 1GB for one cluster is unrealistic */
+        error_report("invalid granularity, image may be corrupt");
+        return -EINVAL;
+    }
+
     s->extents = g_realloc(s->extents,
                               (s->num_extents + 1) * sizeof(VmdkExtent));
     extent = &s->extents[s->num_extents];
@@ -416,7 +424,10 @@ static VmdkExtent *vmdk_add_extent(BlockDriverState *bs,
         extent->end_sector = extent->sectors;
     }
     bs->total_sectors = extent->end_sector;
-    return extent;
+    if (new_extent) {
+        *new_extent = extent;
+    }
+    return 0;
 }
 
 static int vmdk_init_tables(BlockDriverState *bs, VmdkExtent *extent)
@@ -475,12 +486,17 @@ static int vmdk_open_vmdk3(BlockDriverState *bs,
     if (ret < 0) {
         return ret;
     }
-    extent = vmdk_add_extent(bs,
+
+    ret = vmdk_add_extent(bs,
                              bs->file, false,
                              le32_to_cpu(header.disk_sectors),
                              le32_to_cpu(header.l1dir_offset) << 9,
                              0, 1 << 6, 1 << 9,
-                             le32_to_cpu(header.granularity));
+                             le32_to_cpu(header.granularity),
+                             &extent);
+    if (ret < 0) {
+        return ret;
+    }
     ret = vmdk_init_tables(bs, extent);
     if (ret) {
         /* free extent allocated by vmdk_add_extent */
@@ -490,7 +506,7 @@ static int vmdk_open_vmdk3(BlockDriverState *bs,
 }
 
 static int vmdk_open_desc_file(BlockDriverState *bs, int flags,
-                               int64_t desc_offset);
+                               uint64_t desc_offset);
 
 static int vmdk_open_vmdk4(BlockDriverState *bs,
                            BlockDriverState *file,
@@ -508,7 +524,7 @@ static int vmdk_open_vmdk4(BlockDriverState *bs,
         return ret;
     }
     if (header.capacity == 0) {
-        int64_t desc_offset = le64_to_cpu(header.desc_offset);
+        uint64_t desc_offset = le64_to_cpu(header.desc_offset);
         if (desc_offset) {
             return vmdk_open_desc_file(bs, flags, desc_offset << 9);
         }
@@ -570,23 +586,40 @@ static int vmdk_open_vmdk4(BlockDriverState *bs,
         return -ENOTSUP;
     }
 
-    l1_entry_sectors = le32_to_cpu(header.num_gtes_per_gte)
+    if (le32_to_cpu(header.num_gtes_per_gt) > 512) {
+        error_report("L2 table size too big");
+        return -EINVAL;
+    }
+
+    l1_entry_sectors = le32_to_cpu(header.num_gtes_per_gt)
                         * le64_to_cpu(header.granularity);
     if (l1_entry_sectors == 0) {
         return -EINVAL;
     }
     l1_size = (le64_to_cpu(header.capacity) + l1_entry_sectors - 1)
                 / l1_entry_sectors;
+    if (l1_size > 512 * 1024 * 1024) {
+        /* although with big capacity and small l1_entry_sectors, we can get a
+         * big l1_size, we don't want unbounded value to allocate the table.
+         * Limit it to 512M, which is 16PB for default cluster and L2 table
+         * size */
+        error_report("L1 size too big");
+        return -EFBIG;
+    }
     if (le32_to_cpu(header.flags) & VMDK4_FLAG_RGD) {
         l1_backup_offset = le64_to_cpu(header.rgd_offset) << 9;
     }
-    extent = vmdk_add_extent(bs, file, false,
+    ret = vmdk_add_extent(bs, file, false,
                           le64_to_cpu(header.capacity),
                           le64_to_cpu(header.gd_offset) << 9,
                           l1_backup_offset,
                           l1_size,
-                          le32_to_cpu(header.num_gtes_per_gte),
-                          le64_to_cpu(header.granularity));
+                          le32_to_cpu(header.num_gtes_per_gt),
+                          le64_to_cpu(header.granularity),
+                          &extent);
+    if (ret < 0) {
+        return ret;
+    }
     extent->compressed =
         le16_to_cpu(header.compressAlgorithm) == VMDK4_COMPRESSION_DEFLATE;
     extent->has_marker = le32_to_cpu(header.flags) & VMDK4_FLAG_MARKER;
@@ -702,8 +735,11 @@ static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
             /* FLAT extent */
             VmdkExtent *extent;
 
-            extent = vmdk_add_extent(bs, extent_file, true, sectors,
-                            0, 0, 0, 0, sectors);
+            ret = vmdk_add_extent(bs, extent_file, true, sectors,
+                            0, 0, 0, 0, sectors, &extent);
+            if (ret < 0) {
+                return ret;
+            }
             extent->flat_start_offset = flat_offset << 9;
         } else if (!strcmp(type, "SPARSE")) {
             /* SPARSE extent */
@@ -728,7 +764,7 @@ next_line:
 }
 
 static int vmdk_open_desc_file(BlockDriverState *bs, int flags,
-                               int64_t desc_offset)
+                               uint64_t desc_offset)
 {
     int ret;
     char *buf = NULL;
@@ -807,16 +843,17 @@ static int get_whole_cluster(BlockDriverState *bs,
                 uint64_t offset,
                 bool allocate)
 {
-    /* 128 sectors * 512 bytes each = grain size 64KB */
-    uint8_t  whole_grain[extent->cluster_sectors * 512];
+    int ret = VMDK_OK;
+    uint8_t *whole_grain = NULL;
 
     /* we will be here if it's first write on non-exist grain(cluster).
      * try to read from parent image, if exist */
     if (bs->backing_hd) {
-        int ret;
-
+        whole_grain =
+            qemu_blockalign(bs, extent->cluster_sectors << BDRV_SECTOR_BITS);
         if (!vmdk_is_cid_valid(bs)) {
-            return VMDK_ERROR;
+            ret = VMDK_ERROR;
+            goto exit;
         }
 
         /* floor offset to cluster */
@@ -824,17 +861,21 @@ static int get_whole_cluster(BlockDriverState *bs,
         ret = bdrv_read(bs->backing_hd, offset >> 9, whole_grain,
                 extent->cluster_sectors);
         if (ret < 0) {
-            return VMDK_ERROR;
+            ret = VMDK_ERROR;
+            goto exit;
         }
 
         /* Write grain only into the active image */
         ret = bdrv_write(extent->file, cluster_offset, whole_grain,
                 extent->cluster_sectors);
         if (ret < 0) {
-            return VMDK_ERROR;
+            ret = VMDK_ERROR;
+            goto exit;
         }
     }
-    return VMDK_OK;
+exit:
+    qemu_vfree(whole_grain);
+    return ret;
 }
 
 static int vmdk_L2update(VmdkExtent *extent, VmdkMetaData *m_data)
@@ -1371,12 +1412,12 @@ static int vmdk_create_extent(const char *filename, int64_t filesize,
     header.compressAlgorithm = compress ? VMDK4_COMPRESSION_DEFLATE : 0;
     header.capacity = filesize / 512;
     header.granularity = 128;
-    header.num_gtes_per_gte = 512;
+    header.num_gtes_per_gt = 512;
 
     grains = (filesize / 512 + header.granularity - 1) / header.granularity;
-    gt_size = ((header.num_gtes_per_gte * sizeof(uint32_t)) + 511) >> 9;
+    gt_size = ((header.num_gtes_per_gt * sizeof(uint32_t)) + 511) >> 9;
     gt_count =
-        (grains + header.num_gtes_per_gte - 1) / header.num_gtes_per_gte;
+        (grains + header.num_gtes_per_gt - 1) / header.num_gtes_per_gt;
     gd_size = (gt_count * sizeof(uint32_t) + 511) >> 9;
 
     header.desc_offset = 1;
@@ -1392,7 +1433,7 @@ static int vmdk_create_extent(const char *filename, int64_t filesize,
     header.flags = cpu_to_le32(header.flags);
     header.capacity = cpu_to_le64(header.capacity);
     header.granularity = cpu_to_le64(header.granularity);
-    header.num_gtes_per_gte = cpu_to_le32(header.num_gtes_per_gte);
+    header.num_gtes_per_gt = cpu_to_le32(header.num_gtes_per_gt);
     header.desc_offset = cpu_to_le64(header.desc_offset);
     header.desc_size = cpu_to_le64(header.desc_size);
     header.rgd_offset = cpu_to_le64(header.rgd_offset);

qemu-img.c

@@ -396,6 +396,9 @@ static int img_create(int argc, char **argv)
         }
         img_size = (uint64_t)sval;
     }
+    if (optind != argc) {
+        help();
+    }
 
     if (options && is_help_option(options)) {
         return print_block_option_help(filename, fmt);
@@ -573,7 +576,7 @@ static int img_check(int argc, char **argv)
             break;
         }
     }
-    if (optind >= argc) {
+    if (optind != argc - 1) {
         help();
     }
     filename = argv[optind++];
@@ -684,7 +687,7 @@ static int img_commit(int argc, char **argv)
             break;
         }
     }
-    if (optind >= argc) {
+    if (optind != argc - 1) {
         help();
     }
     filename = argv[optind++];
@@ -930,7 +933,7 @@ static int img_compare(int argc, char **argv)
     }
 
 
-    if (optind > argc - 2) {
+    if (optind != argc - 2) {
         help();
     }
     filename1 = argv[optind++];
@@ -1741,7 +1744,7 @@ static int img_info(int argc, char **argv)
             break;
         }
     }
-    if (optind >= argc) {
+    if (optind != argc - 1) {
         help();
     }
     filename = argv[optind++];
@@ -1842,7 +1845,7 @@ static int img_snapshot(int argc, char **argv)
         }
     }
 
-    if (optind >= argc) {
+    if (optind != argc - 1) {
         help();
     }
     filename = argv[optind++];
@@ -1953,7 +1956,7 @@ static int img_rebase(int argc, char **argv)
         progress = 0;
     }
 
-    if ((optind >= argc) || (!unsafe && !out_baseimg)) {
+    if ((optind != argc - 1) || (!unsafe && !out_baseimg)) {
         help();
     }
     filename = argv[optind++];
@@ -2232,7 +2235,7 @@ static int img_resize(int argc, char **argv)
             break;
         }
     }
-    if (optind >= argc) {
+    if (optind != argc - 1) {
         help();
     }
     filename = argv[optind++];
@@ -2319,6 +2322,10 @@ int main(int argc, char **argv)
     const img_cmd_t *cmd;
     const char *cmdname;
 
+#ifdef CONFIG_POSIX
+    signal(SIGPIPE, SIG_IGN);
+#endif
+
     error_set_progname(argv[0]);
 
     qemu_init_main_loop();

qemu-io.c

@@ -335,6 +335,10 @@ int main(int argc, char **argv)
     int opt_index = 0;
     int flags = BDRV_O_UNMAP;
 
+#ifdef CONFIG_POSIX
+    signal(SIGPIPE, SIG_IGN);
+#endif
+
     progname = basename(argv[0]);
 
     while ((c = getopt_long(argc, argv, sopt, lopt, &opt_index)) != -1) {

tests/qemu-iotests/051.out

@@ -23,11 +23,11 @@ QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=foo: could not
 === Enable and disable lazy refcounting on the command line, plus some invalid values ===
 
 Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=on
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=off
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=
@@ -51,72 +51,72 @@ QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=on: Lazy ref
 QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=on: could not open disk image TEST_DIR/t.qcow2: Invalid argument
 
 Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,lazy-refcounts=off
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 
 === No medium ===
 
 Testing: -drive if=floppy
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive if=ide,media=cdrom
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive if=scsi,media=cdrom
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive if=ide
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) QEMU_PROG: Device needs media, but drive is empty
 QEMU_PROG: Device initialization failed.
 QEMU_PROG: Initialization of device ide-hd failed
 
 Testing: -drive if=virtio
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) QEMU_PROG: -drive if=virtio: Device needs media, but drive is empty
 QEMU_PROG: -drive if=virtio: Device initialization failed.
 QEMU_PROG: -drive if=virtio: Device initialization failed.
 QEMU_PROG: -drive if=virtio: Device 'virtio-blk-pci' could not be initialized
 
 Testing: -drive if=scsi
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) QEMU_PROG: -drive if=scsi: Device needs media, but drive is empty
 QEMU_PROG: -drive if=scsi: Device initialization failed.
 QEMU_PROG: Device initialization failed.
 QEMU_PROG: Initialization of device lsi53c895a failed
 
 Testing: -drive if=none,id=disk -device ide-cd,drive=disk
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive if=none,id=disk -device lsi53c895a -device scsi-cd,drive=disk
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive if=none,id=disk -device ide-drive,drive=disk
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) QEMU_PROG: -device ide-drive,drive=disk: Device needs media, but drive is empty
 QEMU_PROG: -device ide-drive,drive=disk: Device initialization failed.
 QEMU_PROG: -device ide-drive,drive=disk: Device 'ide-drive' could not be initialized
 
 Testing: -drive if=none,id=disk -device ide-hd,drive=disk
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) QEMU_PROG: -device ide-hd,drive=disk: Device needs media, but drive is empty
 QEMU_PROG: -device ide-hd,drive=disk: Device initialization failed.
 QEMU_PROG: -device ide-hd,drive=disk: Device 'ide-hd' could not be initialized
 
 Testing: -drive if=none,id=disk -device lsi53c895a -device scsi-disk,drive=disk
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) QEMU_PROG: -device scsi-disk,drive=disk: Device needs media, but drive is empty
 QEMU_PROG: -device scsi-disk,drive=disk: Device initialization failed.
 QEMU_PROG: -device scsi-disk,drive=disk: Device 'scsi-disk' could not be initialized
 
 Testing: -drive if=none,id=disk -device lsi53c895a -device scsi-hd,drive=disk
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) QEMU_PROG: -device scsi-hd,drive=disk: Device needs media, but drive is empty
 QEMU_PROG: -device scsi-hd,drive=disk: Device initialization failed.
 QEMU_PROG: -device scsi-hd,drive=disk: Device 'scsi-hd' could not be initialized
@@ -125,77 +125,77 @@ QEMU_PROG: -device scsi-hd,drive=disk: Device 'scsi-hd' could not be initialized
 === Read-only ===
 
 Testing: -drive file=TEST_DIR/t.qcow2,if=floppy,readonly=on
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive file=TEST_DIR/t.qcow2,if=ide,media=cdrom,readonly=on
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive file=TEST_DIR/t.qcow2,if=scsi,media=cdrom,readonly=on
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive file=TEST_DIR/t.qcow2,if=ide,readonly=on
 QEMU_PROG: -drive file=TEST_DIR/t.qcow2,if=ide,readonly=on: read-only not supported by this bus type
 
 Testing: -drive file=TEST_DIR/t.qcow2,if=virtio,readonly=on
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive file=TEST_DIR/t.qcow2,if=scsi,readonly=on
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device ide-cd,drive=disk
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device lsi53c895a -device scsi-cd,drive=disk
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device ide-drive,drive=disk
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) QEMU_PROG: -device ide-drive,drive=disk: Can't use a read-only drive
 QEMU_PROG: -device ide-drive,drive=disk: Device initialization failed.
 QEMU_PROG: -device ide-drive,drive=disk: Device 'ide-drive' could not be initialized
 
 Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device ide-hd,drive=disk
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) QEMU_PROG: -device ide-hd,drive=disk: Can't use a read-only drive
 QEMU_PROG: -device ide-hd,drive=disk: Device initialization failed.
 QEMU_PROG: -device ide-hd,drive=disk: Device 'ide-hd' could not be initialized
 
 Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device lsi53c895a -device scsi-disk,drive=disk
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device lsi53c895a -device scsi-hd,drive=disk
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 
 === Cache modes ===
 
 Testing: -drive media=cdrom,cache=none
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive media=cdrom,cache=directsync
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive media=cdrom,cache=writeback
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive media=cdrom,cache=writethrough
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive media=cdrom,cache=unsafe
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive media=cdrom,cache=invalid_value
@@ -205,7 +205,7 @@ QEMU_PROG: -drive media=cdrom,cache=invalid_value: invalid cache option
 === Specifying the protocol layer ===
 
 Testing: -drive file=TEST_DIR/t.qcow2,file.driver=file
-QEMU 1.5.50 monitor - type 'help' for more information
+QEMU X.Y.Z monitor - type 'help' for more information
 (qemu) qququiquit
 
 Testing: -drive file=TEST_DIR/t.qcow2,file.driver=qcow2

tests/qemu-iotests/059

@@ -0,0 +1,72 @@
+#!/bin/bash
+#
+# Test case for vmdk
+#
+# Copyright (C) 2013 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+# creator
+owner=famz@redhat.com
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1	# failure is the default!
+
+_cleanup()
+{
+	_cleanup_test_img
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+# This tests vmdk-specific low-level functionality
+_supported_fmt vmdk
+_supported_proto generic
+_supported_os Linux
+
+capacity_offset=16
+granularity_offset=20
+grain_table_size_offset=44
+
+echo "=== Testing invalid granularity ==="
+echo
+_make_test_img 64M
+poke_file "$TEST_IMG" "$granularity_offset" "\xff\xff\xff\xff\xff\xff\xff\xff"
+{ $QEMU_IO -c "read 0 512" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+
+echo "=== Testing too big L2 table size ==="
+echo
+_make_test_img 64M
+poke_file "$TEST_IMG" "$grain_table_size_offset" "\xff\xff\xff\xff"
+{ $QEMU_IO -c "read 0 512" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+
+echo "=== Testing too big L1 table size ==="
+echo
+_make_test_img 64M
+poke_file "$TEST_IMG" "$capacity_offset" "\xff\xff\xff\xff"
+poke_file "$TEST_IMG" "$grain_table_size_offset" "\x01\x00\x00\x00"
+{ $QEMU_IO -c "read 0 512" $TEST_IMG; } 2>&1 | _filter_qemu_io | _filter_testdir
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0

tests/qemu-iotests/059.out

@@ -0,0 +1,20 @@
+QA output created by 059
+=== Testing invalid granularity ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
+invalid granularity, image may be corrupt
+qemu-io: can't open device TEST_DIR/t.vmdk
+no file open, try 'help open'
+=== Testing too big L2 table size ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
+L2 table size too big
+qemu-io: can't open device TEST_DIR/t.vmdk
+no file open, try 'help open'
+=== Testing too big L1 table size ===
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
+L1 size too big
+qemu-io: can't open device TEST_DIR/t.vmdk
+no file open, try 'help open'
+*** done

tests/qemu-iotests/common.filter

@@ -155,7 +155,8 @@ _filter_qemu_io()
 # replace occurrences of QEMU_PROG with "qemu"
 _filter_qemu()
 {
-    sed -e "s#\\(^\\|(qemu) \\)$(basename $QEMU_PROG):#\1QEMU_PROG:#"
+    sed -e "s#\\(^\\|(qemu) \\)$(basename $QEMU_PROG):#\1QEMU_PROG:#" \
+        -e 's#^QEMU [0-9]\+\.[0-9]\+\.[0-9]\+ monitor#QEMU X.Y.Z monitor#'
 }
 
 # make sure this script returns success

tests/qemu-iotests/common.rc

@@ -34,6 +34,12 @@ dd()
    fi
 }
 
+# poke_file 'test.img' 512 '\xff\xfe'
+poke_file()
+{
+    printf "$3" | dd "of=$1" bs=1 "seek=$2" conv=notrunc &>/dev/null
+}
+
 # we need common.config
 if [ "$iam" != "check" ]
 then

tests/qemu-iotests/group

@@ -63,3 +63,4 @@
 054 rw auto
 055 rw auto
 056 rw auto backing
+059 rw auto

util/iov.c

@@ -202,6 +202,12 @@ ssize_t iov_send_recv(int sockfd, struct iovec *iov, unsigned iov_cnt,
             return -1;
         }
 
+        if (ret == 0 && !do_send) {
+            /* recv returns 0 when the peer has performed an orderly
+             * shutdown. */
+            break;
+        }
+
         /* Prepare for the next iteration */
         offset += ret;
         total += ret;