[10/15] iscsi: Use bdrv_open options instead of filename

Submitted by Kevin Wolf on April 12, 2013, 8:48 p.m.

Details

Message ID 1365799688-19918-11-git-send-email-kwolf@redhat.com
State New
Headers show

Commit Message

Kevin Wolf April 12, 2013, 8:48 p.m.
This is only to convert the internal interface that is used for passing
the "filename" to be parsed, but converting to actual fine grained
options is left for another day, as it doesn't look trivial.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
 block/iscsi.c | 39 +++++++++++++++++++++++++++++++++++++--
 1 file changed, 37 insertions(+), 2 deletions(-)

Comments

Eric Blake April 15, 2013, 8:26 p.m.
On 04/12/2013 02:48 PM, Kevin Wolf wrote:
> This is only to convert the internal interface that is used for passing
> the "filename" to be parsed, but converting to actual fine grained
> options is left for another day, as it doesn't look trivial.
> 
> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
> ---
>  block/iscsi.c | 39 +++++++++++++++++++++++++++++++++++++--
>  1 file changed, 37 insertions(+), 2 deletions(-)
> 

Reviewed-by: Eric Blake <eblake@redhat.com>

Patch hide | download patch | download mbox

diff --git a/block/iscsi.c b/block/iscsi.c
index 92d6eae..907beba 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -1003,11 +1003,25 @@  out:
     return ret;
 }
 
+/* TODO Convert to fine grained options */
+static QemuOptsList runtime_opts = {
+    .name = "iscsi",
+    .head = QTAILQ_HEAD_INITIALIZER(runtime_opts.head),
+    .desc = {
+        {
+            .name = "filename",
+            .type = QEMU_OPT_STRING,
+            .help = "URL to the iscsi image",
+        },
+        { /* end of list */ }
+    },
+};
+
 /*
  * We support iscsi url's on the form
  * iscsi://[<username>%<password>@]<host>[:<port>]/<targetname>/<lun>
  */
-static int iscsi_open(BlockDriverState *bs, const char *filename,
+static int iscsi_open(BlockDriverState *bs, const char *dummy,
                       QDict *options, int flags)
 {
     IscsiLun *iscsilun = bs->opaque;
@@ -1016,6 +1030,9 @@  static int iscsi_open(BlockDriverState *bs, const char *filename,
     struct scsi_task *task = NULL;
     struct scsi_inquiry_standard *inq = NULL;
     char *initiator_name = NULL;
+    QemuOpts *opts;
+    Error *local_err = NULL;
+    const char *filename;
     int ret;
 
     if ((BDRV_SECTOR_SIZE % 512) != 0) {
@@ -1025,6 +1042,18 @@  static int iscsi_open(BlockDriverState *bs, const char *filename,
         return -EINVAL;
     }
 
+    opts = qemu_opts_create_nofail(&runtime_opts);
+    qemu_opts_absorb_qdict(opts, options, &local_err);
+    if (error_is_set(&local_err)) {
+        qerror_report_err(local_err);
+        error_free(local_err);
+        ret = -EINVAL;
+        goto out;
+    }
+
+    filename = qemu_opt_get(opts, "filename");
+
+
     iscsi_url = iscsi_parse_full_url(iscsi, filename);
     if (iscsi_url == NULL) {
         error_report("Failed to parse URL : %s", filename);
@@ -1126,6 +1155,7 @@  static int iscsi_open(BlockDriverState *bs, const char *filename,
 #endif
 
 out:
+    qemu_opts_del(opts);
     if (initiator_name != NULL) {
         g_free(initiator_name);
     }
@@ -1190,6 +1220,7 @@  static int iscsi_create(const char *filename, QEMUOptionParameter *options)
     int64_t total_size = 0;
     BlockDriverState bs;
     IscsiLun *iscsilun = NULL;
+    QDict *bs_options;
 
     memset(&bs, 0, sizeof(BlockDriverState));
 
@@ -1204,7 +1235,11 @@  static int iscsi_create(const char *filename, QEMUOptionParameter *options)
     bs.opaque = g_malloc0(sizeof(struct IscsiLun));
     iscsilun = bs.opaque;
 
-    ret = iscsi_open(&bs, filename, NULL, 0);
+    bs_options = qdict_new();
+    qdict_put(bs_options, "filename", qstring_from_str(filename));
+    ret = iscsi_open(&bs, NULL, bs_options, 0);
+    QDECREF(bs_options);
+
     if (ret != 0) {
         goto out;
     }