[Qemu-devel] [PATCH v3 07/10] qemu-img: allow specifying image as a set of options args

["Daniel P. Berrange" <berrange@redhat.com>]

Currently qemu-img allows an image filename to be passed on the
command line, but unless using the JSON format, it does not have
a way to set any options except the format eg

   qemu-img info https://127.0.0.1/images/centos7.iso

This adds a --image-opts arg that indicates that the positional
filename should be interpreted as a full option string, not
just a filename.

   qemu-img info --source driver=http,url=https://127.0.0.1/images,sslverify=off

This flag is mutually exclusive with the '-f' / '-F' flags.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
---
 qemu-img-cmds.hx |  44 ++++----
 qemu-img.c       | 304 +++++++++++++++++++++++++++++++++++++++++++++++++------
 qemu-img.texi    |   6 ++
 3 files changed, 303 insertions(+), 51 deletions(-)

diff --git a/qemu-img-cmds.hx b/qemu-img-cmds.hx
index 5bb1de7..ee5c770 100644
--- a/qemu-img-cmds.hx
+++ b/qemu-img-cmds.hx
@@ -10,68 +10,68 @@ STEXI
 ETEXI
 
 DEF("check", img_check,
-    "check [-q] [--object objectdef] [-f fmt] [--output=ofmt] [-r [leaks | all]] [-T src_cache] filename")
+    "check [-q] [--object objectdef] [--image-opts] [-f fmt] [--output=ofmt] [-r [leaks | all]] [-T src_cache] filename")
 STEXI
-@item check [--object objectdef] [-q] [-f @var{fmt}] [--output=@var{ofmt}] [-r [leaks | all]] [-T @var{src_cache}] @var{filename}
+@item check [--object objectdef] [--image-opts] [-q] [-f @var{fmt}] [--output=@var{ofmt}] [-r [leaks | all]] [-T @var{src_cache}] @var{filename}
 ETEXI
 
 DEF("create", img_create,
-    "create [-q] [--object objectdef] [-f fmt] [-o options] filename [size]")
+    "create [-q] [--object objectdef] [--image-opts] [-f fmt] [-o options] filename [size]")
 STEXI
-@item create [--object objectdef] [-q] [-f @var{fmt}] [-o @var{options}] @var{filename} [@var{size}]
+@item create [--object objectdef] [--image-opts] [-q] [-f @var{fmt}] [-o @var{options}] @var{filename} [@var{size}]
 ETEXI
 
 DEF("commit", img_commit,
-    "commit [-q] [--object objectdef] [-f fmt] [-t cache] [-b base] [-d] [-p] filename")
+    "commit [-q] [--object objectdef] [--image-opts] [-f fmt] [-t cache] [-b base] [-d] [-p] filename")
 STEXI
-@item commit [--object objectdef] [-q] [-f @var{fmt}] [-t @var{cache}] [-b @var{base}] [-d] [-p] @var{filename}
+@item commit [--object objectdef] [--image-opts] [-q] [-f @var{fmt}] [-t @var{cache}] [-b @var{base}] [-d] [-p] @var{filename}
 ETEXI
 
 DEF("compare", img_compare,
-    "compare [--object objectdef] [-f fmt] [-F fmt] [-T src_cache] [-p] [-q] [-s] filename1 filename2")
+    "compare [--object objectdef] [--image-opts] [-f fmt] [-F fmt] [-T src_cache] [-p] [-q] [-s] filename1 filename2")
 STEXI
-@item compare [--object objectdef] [-f @var{fmt}] [-F @var{fmt}] [-T @var{src_cache}] [-p] [-q] [-s] @var{filename1} @var{filename2}
+@item compare [--object objectdef] [--image-opts] [-f @var{fmt}] [-F @var{fmt}] [-T @var{src_cache}] [-p] [-q] [-s] @var{filename1} @var{filename2}
 ETEXI
 
 DEF("convert", img_convert,
-    "convert [--object objectdef] [-c] [-p] [-q] [-n] [-f fmt] [-t cache] [-T src_cache] [-O output_fmt] [-o options] [-s snapshot_id_or_name] [-l snapshot_param] [-S sparse_size] filename [filename2 [...]] output_filename")
+    "convert [--object objectdef] [--image-opts] [-c] [-p] [-q] [-n] [-f fmt] [-t cache] [-T src_cache] [-O output_fmt] [-o options] [-s snapshot_id_or_name] [-l snapshot_param] [-S sparse_size] filename [filename2 [...]] output_filename")
 STEXI
-@item convert [--object objectdef] [-c] [-p] [-q] [-n] [-f @var{fmt}] [-t @var{cache}] [-T @var{src_cache}] [-O @var{output_fmt}] [-o @var{options}] [-s @var{snapshot_id_or_name}] [-l @var{snapshot_param}] [-S @var{sparse_size}] @var{filename} [@var{filename2} [...]] @var{output_filename}
+@item convert [--object objectdef] [--image-opts] [-c] [-p] [-q] [-n] [-f @var{fmt}] [-t @var{cache}] [-T @var{src_cache}] [-O @var{output_fmt}] [-o @var{options}] [-s @var{snapshot_id_or_name}] [-l @var{snapshot_param}] [-S @var{sparse_size}] @var{filename} [@var{filename2} [...]] @var{output_filename}
 ETEXI
 
 DEF("info", img_info,
-    "info [--object objectdef] [-f fmt] [--output=ofmt] [--backing-chain] filename")
+    "info [--object objectdef] [--image-opts] [-f fmt] [--output=ofmt] [--backing-chain] filename")
 STEXI
-@item info [--object objectdef] [-f @var{fmt}] [--output=@var{ofmt}] [--backing-chain] @var{filename}
+@item info [--object objectdef] [--image-opts] [-f @var{fmt}] [--output=@var{ofmt}] [--backing-chain] @var{filename}
 ETEXI
 
 DEF("map", img_map,
-    "map [--object objectdef] [-f fmt] [--output=ofmt] filename")
+    "map [--object objectdef] [--image-opts] [-f fmt] [--output=ofmt] filename")
 STEXI
-@item map [--object objectdef] [-f @var{fmt}] [--output=@var{ofmt}] @var{filename}
+@item map [--object objectdef] [--image-opts] [-f @var{fmt}] [--output=@var{ofmt}] @var{filename}
 ETEXI
 
 DEF("snapshot", img_snapshot,
-    "snapshot [--object objectdef] [-q] [-l | -a snapshot | -c snapshot | -d snapshot] filename")
+    "snapshot [--object objectdef] [--image-opts] [-q] [-l | -a snapshot | -c snapshot | -d snapshot] filename")
 STEXI
-@item snapshot [--object objectdef] [-q] [-l | -a @var{snapshot} | -c @var{snapshot} | -d @var{snapshot}] @var{filename}
+@item snapshot [--object objectdef] [--image-opts] [-q] [-l | -a @var{snapshot} | -c @var{snapshot} | -d @var{snapshot}] @var{filename}
 ETEXI
 
 DEF("rebase", img_rebase,
-    "rebase [--object objectdef] [-q] [-f fmt] [-t cache] [-T src_cache] [-p] [-u] -b backing_file [-F backing_fmt] filename")
+    "rebase [--object objectdef] [--image-opts] [-q] [-f fmt] [-t cache] [-T src_cache] [-p] [-u] -b backing_file [-F backing_fmt] filename")
 STEXI
-@item rebase [--object objectdef] [-q] [-f @var{fmt}] [-t @var{cache}] [-T @var{src_cache}] [-p] [-u] -b @var{backing_file} [-F @var{backing_fmt}] @var{filename}
+@item rebase [--object objectdef] [--image-opts] [-q] [-f @var{fmt}] [-t @var{cache}] [-T @var{src_cache}] [-p] [-u] -b @var{backing_file} [-F @var{backing_fmt}] @var{filename}
 ETEXI
 
 DEF("resize", img_resize,
-    "resize [--object objectdef] [-q] filename [+ | -]size")
+    "resize [--object objectdef] [--image-opts] [-q] filename [+ | -]size")
 STEXI
-@item resize [--object objectdef] [-q] @var{filename} [+ | -]@var{size}
+@item resize [--object objectdef] [--image-opts] [-q] @var{filename} [+ | -]@var{size}
 ETEXI
 
 DEF("amend", img_amend,
-    "amend [--object objectdef] [-p] [-q] [-f fmt] [-t cache] -o options filename")
+    "amend [--object objectdef] [--image-opts] [-p] [-q] [-f fmt] [-t cache] -o options filename")
 STEXI
-@item amend [--object objectdef] [-p] [-q] [-f @var{fmt}] [-t @var{cache}] -o @var{options} @var{filename}
+@item amend [--object objectdef] [--image-opts] [-p] [-q] [-f @var{fmt}] [-t @var{cache}] -o @var{options} @var{filename}
 @end table
 ETEXI
diff --git a/qemu-img.c b/qemu-img.c
index a5019e6..2c97dde 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -51,6 +51,7 @@ enum {
     OPTION_OUTPUT = 256,
     OPTION_BACKING_CHAIN = 257,
     OPTION_OBJECT = 258,
+    OPTION_IMAGE_OPTS = 259,
 };
 
 typedef enum OutputFormat {
@@ -171,6 +172,16 @@ static QemuOptsList qemu_object_opts = {
     },
 };
 
+static QemuOptsList qemu_source_opts = {
+    .name = "source",
+    .implied_opt_name = "file",
+    .head = QTAILQ_HEAD_INITIALIZER(qemu_source_opts.head),
+    .desc = {
+        { }
+    },
+};
+
+
 static int object_create(void *opaque, QemuOpts *opts, Error **errp)
 {
     Error *err = NULL;
@@ -232,9 +243,31 @@ static int print_block_option_help(const char *filename, const char *fmt)
     return 0;
 }
 
-static BlockBackend *img_open(const char *id, const char *filename,
-                              const char *fmt, int flags,
-                              bool require_io, bool quiet)
+static BlockBackend *img_open_opts(const char *id,
+                                   QemuOpts *opts, int flags)
+{
+    QDict *options;
+    Error *local_err = NULL;
+    char *file = NULL;
+    BlockBackend *blk;
+    file = g_strdup(qemu_opt_get(opts, "file"));
+    qemu_opt_unset(opts, "file");
+    options = qemu_opts_to_qdict(opts, NULL);
+    blk = blk_new_open(id, file, NULL, options, flags, &local_err);
+    if (!blk) {
+        error_report("Could not open '%s': %s", file ? file : "",
+                     error_get_pretty(local_err));
+        g_free(file);
+        error_free(local_err);
+        return NULL;
+    }
+    g_free(file);
+    return blk;
+}
+
+static BlockBackend *img_open_file(const char *id, const char *filename,
+                                   const char *fmt, int flags,
+                                   bool require_io, bool quiet)
 {
     BlockBackend *blk;
     BlockDriverState *bs;
@@ -547,6 +580,7 @@ static int img_check(int argc, char **argv)
     ImageCheck *check;
     bool quiet = false;
     QemuOpts *opts;
+    bool image_opts = false;
 
     fmt = NULL;
     output = NULL;
@@ -559,6 +593,7 @@ static int img_check(int argc, char **argv)
             {"repair", required_argument, 0, 'r'},
             {"output", required_argument, 0, OPTION_OUTPUT},
             {"object", required_argument, 0, OPTION_OBJECT},
+            {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
             {0, 0, 0, 0}
         };
         c = getopt_long(argc, argv, "hf:r:T:q",
@@ -602,6 +637,9 @@ static int img_check(int argc, char **argv)
                 exit(1);
             }
             break;
+        case OPTION_IMAGE_OPTS:
+            image_opts = true;
+            break;
         }
     }
     if (optind != argc - 1) {
@@ -630,7 +668,20 @@ static int img_check(int argc, char **argv)
         return 1;
     }
 
-    blk = img_open("image", filename, fmt, flags, true, quiet);
+    if (image_opts) {
+        if (fmt) {
+            error_report("--image-opts and --format are mutually exclusive");
+            exit(1);
+        }
+        opts = qemu_opts_parse_noisily(qemu_find_opts("source"),
+                                       filename, true);
+        if (!opts) {
+            exit(1);
+        }
+        blk = img_open_opts("image", opts, flags);
+    } else {
+        blk = img_open_file("image", filename, fmt, flags, true, quiet);
+    }
     if (!blk) {
         return 1;
     }
@@ -743,6 +794,7 @@ static int img_commit(int argc, char **argv)
     Error *local_err = NULL;
     CommonBlockJobCBInfo cbi;
     QemuOpts *opts;
+    bool image_opts = false;
 
     fmt = NULL;
     cache = BDRV_DEFAULT_CACHE;
@@ -752,6 +804,7 @@ static int img_commit(int argc, char **argv)
         static const struct option long_options[] = {
             {"help", no_argument, 0, 'h'},
             {"object", required_argument, 0, OPTION_OBJECT},
+            {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
             {0, 0, 0, 0}
         };
         c = getopt_long(argc, argv, "f:ht:b:dpq",
@@ -791,6 +844,9 @@ static int img_commit(int argc, char **argv)
                 exit(1);
             }
             break;
+        case OPTION_IMAGE_OPTS:
+            image_opts = true;
+            break;
         }
     }
 
@@ -817,7 +873,20 @@ static int img_commit(int argc, char **argv)
         return 1;
     }
 
-    blk = img_open("image", filename, fmt, flags, true, quiet);
+    if (image_opts) {
+        if (fmt) {
+            error_report("--image-opts and --format are mutually exclusive");
+            exit(1);
+        }
+        opts = qemu_opts_parse_noisily(qemu_find_opts("source"),
+                                       filename, true);
+        if (!opts) {
+            exit(1);
+        }
+        blk = img_open_opts("image", opts, flags);
+    } else {
+        blk = img_open_file("image", filename, fmt, flags, true, quiet);
+    }
     if (!blk) {
         return 1;
     }
@@ -1067,6 +1136,7 @@ static int img_compare(int argc, char **argv)
     int c, pnum;
     uint64_t progress_base;
     QemuOpts *opts;
+    bool image_opts = false;
 
     cache = BDRV_DEFAULT_CACHE;
     for (;;) {
@@ -1074,6 +1144,7 @@ static int img_compare(int argc, char **argv)
         static const struct option long_options[] = {
             {"help", no_argument, 0, 'h'},
             {"object", required_argument, 0, OPTION_OBJECT},
+            {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
             {0, 0, 0, 0}
         };
         c = getopt_long(argc, argv, "hf:F:T:pqs",
@@ -1111,6 +1182,9 @@ static int img_compare(int argc, char **argv)
                 exit(1);
             }
             break;
+        case OPTION_IMAGE_OPTS:
+            image_opts = true;
+            break;
         }
     }
 
@@ -1143,18 +1217,49 @@ static int img_compare(int argc, char **argv)
         goto out3;
     }
 
-    blk1 = img_open("image_1", filename1, fmt1, flags, true, quiet);
-    if (!blk1) {
-        ret = 2;
-        goto out3;
-    }
-    bs1 = blk_bs(blk1);
+    if (image_opts) {
+        if (fmt1 || fmt2) {
+            error_report("--image-opts and -f or -F are mutually exclusive");
+            goto out3;
+        }
+        opts = qemu_opts_parse_noisily(qemu_find_opts("source"),
+                                       filename1, true);
+        if (!opts) {
+            ret = 2;
+            goto out3;
+        }
+        blk1 = img_open_opts("image_1", opts, flags);
+        if (!blk1) {
+            ret = 2;
+            goto out3;
+        }
 
-    blk2 = img_open("image_2", filename2, fmt2, flags, true, quiet);
-    if (!blk2) {
-        ret = 2;
-        goto out2;
+        opts = qemu_opts_parse_noisily(qemu_find_opts("source"),
+                                       filename2, true);
+        if (!opts) {
+            ret = 2;
+            goto out2;
+        }
+
+        blk2 = img_open_opts("image_2", opts, flags);
+        if (!blk2) {
+            ret = 2;
+            goto out3;
+        }
+    } else {
+        blk1 = img_open_file("image_1", filename1, fmt1, flags, true, quiet);
+        if (!blk1) {
+            ret = 2;
+            goto out3;
+        }
+
+        blk2 = img_open_file("image_2", filename2, fmt2, flags, true, quiet);
+        if (!blk2) {
+            ret = 2;
+            goto out2;
+        }
     }
+    bs1 = blk_bs(blk1);
     bs2 = blk_bs(blk2);
 
     buf1 = blk_blockalign(blk1, IO_BUF_SIZE);
@@ -1642,6 +1747,7 @@ static int img_convert(int argc, char **argv)
     Error *local_err = NULL;
     QemuOpts *sn_opts = NULL;
     ImgConvertState state;
+    bool image_opts = false;
 
     fmt = NULL;
     out_fmt = "raw";
@@ -1655,6 +1761,7 @@ static int img_convert(int argc, char **argv)
         static const struct option long_options[] = {
             {"help", no_argument, 0, 'h'},
             {"object", required_argument, 0, OPTION_OBJECT},
+            {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
             {0, 0, 0, 0}
         };
         c = getopt_long(argc, argv, "hf:O:B:ce6o:s:l:S:pt:T:qn",
@@ -1756,6 +1863,9 @@ static int img_convert(int argc, char **argv)
                 exit(1);
             }
             break;
+        case OPTION_IMAGE_OPTS:
+            image_opts = true;
+            break;
         }
     }
 
@@ -1771,7 +1881,6 @@ static int img_convert(int argc, char **argv)
     }
     qemu_progress_init(progress, 1.0);
 
-
     bs_n = argc - optind - 1;
     out_filename = bs_n >= 1 ? argv[argc - 1] : NULL;
 
@@ -1809,8 +1918,23 @@ static int img_convert(int argc, char **argv)
     for (bs_i = 0; bs_i < bs_n; bs_i++) {
         char *id = bs_n > 1 ? g_strdup_printf("source_%d", bs_i)
                             : g_strdup("source");
-        blk[bs_i] = img_open(id, argv[optind + bs_i], fmt, src_flags,
-                             true, quiet);
+        if (image_opts) {
+            if (fmt) {
+                error_report("--image-opts and -f are mutually exclusive");
+                ret = -1;
+                goto out;
+            }
+            opts = qemu_opts_parse_noisily(qemu_find_opts("source"),
+                                           argv[optind + bs_i], true);
+            if (!opts) {
+                ret = -1;
+                goto out;
+            }
+            blk[bs_i] = img_open_opts(id, opts, src_flags);
+        } else {
+            blk[bs_i] = img_open_file(id, argv[optind + bs_i], fmt, src_flags,
+                                      true, quiet);
+        }
         g_free(id);
         if (!blk[bs_i]) {
             ret = -1;
@@ -1951,7 +2075,12 @@ static int img_convert(int argc, char **argv)
         goto out;
     }
 
-    out_blk = img_open("target", out_filename, out_fmt, flags, true, quiet);
+    /* XXX we should allow --image-opts to trigger use of
+     * img_open_opts here, but then we have trouble with
+     * the bdrv_create() call which takes different params
+     */
+    out_blk = img_open_file("target", out_filename,
+                            out_fmt, flags, true, quiet);
     if (!out_blk) {
         ret = -1;
         goto out;
@@ -2118,7 +2247,8 @@ static gboolean str_equal_func(gconstpointer a, gconstpointer b)
  * image file.  If there was an error a message will have been printed to
  * stderr.
  */
-static ImageInfoList *collect_image_info_list(const char *filename,
+static ImageInfoList *collect_image_info_list(bool image_opts,
+                                              const char *filename,
                                               const char *fmt,
                                               bool chain)
 {
@@ -2126,6 +2256,7 @@ static ImageInfoList *collect_image_info_list(const char *filename,
     ImageInfoList **last = &head;
     GHashTable *filenames;
     Error *err = NULL;
+    QemuOpts *opts;
 
     filenames = g_hash_table_new_full(g_str_hash, str_equal_func, NULL, NULL);
 
@@ -2142,8 +2273,24 @@ static ImageInfoList *collect_image_info_list(const char *filename,
         }
         g_hash_table_insert(filenames, (gpointer)filename, NULL);
 
-        blk = img_open("image", filename, fmt,
-                       BDRV_O_FLAGS | BDRV_O_NO_BACKING, false, false);
+        if (image_opts) {
+            if (fmt) {
+                error_report("--image-opts and -f are mutually exclusive");
+                goto err;
+            }
+            opts = qemu_opts_parse_noisily(qemu_find_opts("source"),
+                                           filename, true);
+            if (!opts) {
+                goto err;
+            }
+            blk = img_open_opts("image", opts,
+                                BDRV_O_FLAGS | BDRV_O_NO_BACKING);
+            opts = NULL;
+        } else {
+            blk = img_open_file("image", filename, fmt,
+                                BDRV_O_FLAGS | BDRV_O_NO_BACKING,
+                                false, false);
+        }
         if (!blk) {
             goto err;
         }
@@ -2195,6 +2342,7 @@ static int img_info(int argc, char **argv)
     const char *filename, *fmt, *output;
     ImageInfoList *list;
     QemuOpts *opts;
+    bool image_opts = false;
 
     fmt = NULL;
     output = NULL;
@@ -2206,6 +2354,7 @@ static int img_info(int argc, char **argv)
             {"output", required_argument, 0, OPTION_OUTPUT},
             {"backing-chain", no_argument, 0, OPTION_BACKING_CHAIN},
             {"object", required_argument, 0, OPTION_OBJECT},
+            {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
             {0, 0, 0, 0}
         };
         c = getopt_long(argc, argv, "f:h",
@@ -2234,6 +2383,9 @@ static int img_info(int argc, char **argv)
                 exit(1);
             }
             break;
+        case OPTION_IMAGE_OPTS:
+            image_opts = true;
+            break;
         }
     }
     if (optind != argc - 1) {
@@ -2256,7 +2408,7 @@ static int img_info(int argc, char **argv)
         exit(1);
     }
 
-    list = collect_image_info_list(filename, fmt, chain);
+    list = collect_image_info_list(image_opts, filename, fmt, chain);
     if (!list) {
         return 1;
     }
@@ -2380,6 +2532,7 @@ static int img_map(int argc, char **argv)
     MapEntry curr = { .length = 0 }, next;
     int ret = 0;
     QemuOpts *opts;
+    bool image_opts = false;
 
     fmt = NULL;
     output = NULL;
@@ -2390,6 +2543,7 @@ static int img_map(int argc, char **argv)
             {"format", required_argument, 0, 'f'},
             {"output", required_argument, 0, OPTION_OUTPUT},
             {"object", required_argument, 0, OPTION_OBJECT},
+            {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
             {0, 0, 0, 0}
         };
         c = getopt_long(argc, argv, "f:h",
@@ -2415,6 +2569,9 @@ static int img_map(int argc, char **argv)
                 exit(1);
             }
             break;
+        case OPTION_IMAGE_OPTS:
+            image_opts = true;
+            break;
         }
     }
     if (optind != argc - 1) {
@@ -2437,7 +2594,20 @@ static int img_map(int argc, char **argv)
         exit(1);
     }
 
-    blk = img_open("image", filename, fmt, BDRV_O_FLAGS, true, false);
+    if (image_opts) {
+        if (fmt) {
+            error_report("--image-opts and -f are mutually exclusive");
+            exit(1);
+        }
+        opts = qemu_opts_parse_noisily(qemu_find_opts("source"),
+                                       filename, true);
+        if (!opts) {
+            exit(1);
+        }
+        blk = img_open_opts("image", opts, BDRV_O_FLAGS);
+    } else {
+        blk = img_open_file("image", filename, fmt, BDRV_O_FLAGS, true, false);
+    }
     if (!blk) {
         return 1;
     }
@@ -2503,6 +2673,7 @@ static int img_snapshot(int argc, char **argv)
     bool quiet = false;
     Error *err = NULL;
     QemuOpts *opts;
+    bool image_opts = false;
 
     bdrv_oflags = BDRV_O_FLAGS | BDRV_O_RDWR;
     /* Parse commandline parameters */
@@ -2511,6 +2682,7 @@ static int img_snapshot(int argc, char **argv)
         static const struct option long_options[] = {
             {"help", no_argument, 0, 'h'},
             {"object", required_argument, 0, OPTION_OBJECT},
+            {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
             {0, 0, 0, 0}
         };
         c = getopt_long(argc, argv, "la:c:d:hq",
@@ -2565,6 +2737,9 @@ static int img_snapshot(int argc, char **argv)
                 exit(1);
             }
             break;
+        case OPTION_IMAGE_OPTS:
+            image_opts = true;
+            break;
         }
     }
 
@@ -2580,7 +2755,16 @@ static int img_snapshot(int argc, char **argv)
     }
 
     /* Open the image */
-    blk = img_open("image", filename, NULL, bdrv_oflags, true, quiet);
+    if (image_opts) {
+        opts = qemu_opts_parse_noisily(qemu_find_opts("source"),
+                                       filename, true);
+        if (!opts) {
+            exit(1);
+        }
+        blk = img_open_opts("image", opts, bdrv_oflags);
+    } else {
+        blk = img_open_file("image", filename, NULL, bdrv_oflags, true, quiet);
+    }
     if (!blk) {
         return 1;
     }
@@ -2645,6 +2829,7 @@ static int img_rebase(int argc, char **argv)
     bool quiet = false;
     Error *local_err = NULL;
     QemuOpts *opts;
+    bool image_opts = false;
 
     /* Parse commandline parameters */
     fmt = NULL;
@@ -2657,6 +2842,7 @@ static int img_rebase(int argc, char **argv)
         static const struct option long_options[] = {
             {"help", no_argument, 0, 'h'},
             {"object", required_argument, 0, OPTION_OBJECT},
+            {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
             {0, 0, 0, 0}
         };
         c = getopt_long(argc, argv, "hf:F:b:upt:T:q",
@@ -2700,6 +2886,9 @@ static int img_rebase(int argc, char **argv)
                 exit(1);
             }
             break;
+        case OPTION_IMAGE_OPTS:
+            image_opts = true;
+            break;
         }
     }
 
@@ -2710,6 +2899,7 @@ static int img_rebase(int argc, char **argv)
     if (optind != argc - 1) {
         error_exit("Expecting one image file name");
     }
+
     if (!unsafe && !out_baseimg) {
         error_exit("Must specify backing file (-b) or use unsafe mode (-u)");
     }
@@ -2744,7 +2934,22 @@ static int img_rebase(int argc, char **argv)
      * Ignore the old backing file for unsafe rebase in case we want to correct
      * the reference to a renamed or moved backing file.
      */
-    blk = img_open("image", filename, fmt, flags, true, quiet);
+    if (image_opts) {
+        if (fmt) {
+            error_report("--image-opts and --format are mutually exclusive");
+            ret = -1;
+            goto out;
+        }
+        opts = qemu_opts_parse_noisily(qemu_find_opts("source"),
+                                       filename, true);
+        if (!opts) {
+            ret = -1;
+            goto out;
+        }
+        blk = img_open_opts("image", opts, flags);
+    } else {
+        blk = img_open_file("image", filename, fmt, flags, true, quiet);
+    }
     if (!blk) {
         ret = -1;
         goto out;
@@ -2995,6 +3200,7 @@ static int img_resize(int argc, char **argv)
             }
         },
     };
+    bool image_opts = false;
 
     /* Remove size from argv manually so that negative numbers are not treated
      * as options by getopt. */
@@ -3012,6 +3218,7 @@ static int img_resize(int argc, char **argv)
         static const struct option long_options[] = {
             {"help", no_argument, 0, 'h'},
             {"object", required_argument, 0, OPTION_OBJECT},
+            {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
             {0, 0, 0, 0}
         };
         c = getopt_long(argc, argv, "f:hq",
@@ -3037,6 +3244,9 @@ static int img_resize(int argc, char **argv)
                 exit(1);
             }
             break;
+        case OPTION_IMAGE_OPTS:
+            image_opts = true;
+            break;
         }
     }
     if (optind != argc - 1) {
@@ -3077,8 +3287,23 @@ static int img_resize(int argc, char **argv)
     n = qemu_opt_get_size(param, BLOCK_OPT_SIZE, 0);
     qemu_opts_del(param);
 
-    blk = img_open("image", filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR,
-                   true, quiet);
+    if (image_opts) {
+        if (fmt) {
+            error_report("--image-opts and --format are mutually exclusive");
+            ret = -1;
+            goto out;
+        }
+        opts = qemu_opts_parse_noisily(qemu_find_opts("source"),
+                                       filename, true);
+        if (!opts) {
+            ret = -1;
+            goto out;
+        }
+        blk = img_open_opts("image", opts, BDRV_O_FLAGS | BDRV_O_RDWR);
+    } else {
+        blk = img_open_file("image", filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR,
+                            true, quiet);
+    }
     if (!blk) {
         ret = -1;
         goto out;
@@ -3137,6 +3362,7 @@ static int img_amend(int argc, char **argv)
     bool quiet = false, progress = false;
     BlockBackend *blk = NULL;
     BlockDriverState *bs = NULL;
+    bool image_opts = true;
 
     cache = BDRV_DEFAULT_CACHE;
     for (;;) {
@@ -3144,6 +3370,7 @@ static int img_amend(int argc, char **argv)
         static const struct option long_options[] = {
             {"help", no_argument, 0, 'h'},
             {"object", required_argument, 0, OPTION_OBJECT},
+            {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS},
             {0, 0, 0, 0}
         };
         c = getopt_long(argc, argv, "ho:f:t:pq",
@@ -3190,6 +3417,9 @@ static int img_amend(int argc, char **argv)
                     exit(1);
                 }
                 break;
+            case OPTION_IMAGE_OPTS:
+                image_opts = true;
+                break;
         }
     }
 
@@ -3229,7 +3459,22 @@ static int img_amend(int argc, char **argv)
         goto out;
     }
 
-    blk = img_open("image", filename, fmt, flags, true, quiet);
+    if (image_opts) {
+        if (fmt) {
+            error_report("--image-opts and --format are mutually exclusive");
+            ret = -1;
+            goto out;
+        }
+        opts = qemu_opts_parse_noisily(qemu_find_opts("source"),
+                                       filename, true);
+        if (!opts) {
+            ret = -1;
+            goto out;
+        }
+        blk = img_open_opts("image", opts, flags);
+    } else {
+        blk = img_open_file("image", filename, fmt, flags, true, quiet);
+    }
     if (!blk) {
         ret = -1;
         goto out;
@@ -3327,6 +3572,7 @@ int main(int argc, char **argv)
 
     module_call_init(MODULE_INIT_QOM);
     qemu_add_opts(&qemu_object_opts);
+    qemu_add_opts(&qemu_source_opts);
 
     /* find the command */
     for (cmd = img_cmds; cmd->name != NULL; cmd++) {
diff --git a/qemu-img.texi b/qemu-img.texi
index da93272..f31e726 100644
--- a/qemu-img.texi
+++ b/qemu-img.texi
@@ -32,6 +32,12 @@ page for a description of the object properties. The only object type that
 it makes sense to define is the @code{secret} object, which is used to
 supply passwords and/or encryption keys.
 
+@item --image-opts
+
+Indicates that the @var{filename} parameter is to be interpreted as a
+full option string, not a plain filename. This parameter is mutually
+exclusive with the @var{-f} and @var{-F} parameters.
+
 @item fmt
 is the disk image format. It is guessed automatically in most cases. See below
 for a description of the supported disk formats.
-- 
2.5.0