meson: remove CONFIG_ALL

[mirror_qemu.git] / fsdev / qemu-fsdev.c

diff --git a/fsdev/qemu-fsdev.c b/fsdev/qemu-fsdev.c
index 54cb36a2124bfb0da969ef1a0547f185a53dbb72..f5c953a7105e1d42d3a99488f62d70ebac6e9e7c 100644 (file)
--- a/fsdev/qemu-fsdev.c
+++ b/fsdev/qemu-fsdev.c
@@ -18,15 +18,106 @@
 #include "qemu/error-report.h"
 #include "qemu/option.h"
 
+/*
+ * A table to store the various file systems and their callback operations.
+ * -----------------
+ * fstype | ops
+ * -----------------
+ *  local | local_ops
+ *  .     |
+ *  .     |
+ *  .     |
+ *  .     |
+ * -----------------
+ *  etc
+ */
+typedef struct FsDriverTable {
+    const char *name;
+    FileOperations *ops;
+    const char **opts;
+} FsDriverTable;
+
+typedef struct FsDriverListEntry {
+    FsDriverEntry fse;
+    QTAILQ_ENTRY(FsDriverListEntry) next;
+} FsDriverListEntry;
+
 static QTAILQ_HEAD(, FsDriverListEntry) fsdriver_entries =
     QTAILQ_HEAD_INITIALIZER(fsdriver_entries);
 
+#define COMMON_FS_DRIVER_OPTIONS "id", "fsdriver", "readonly"
+
 static FsDriverTable FsDrivers[] = {
-    { .name = "local", .ops = &local_ops},
-    { .name = "synth", .ops = &synth_ops},
-    { .name = "proxy", .ops = &proxy_ops},
+    {
+        .name = "local",
+        .ops = &local_ops,
+        .opts = (const char * []) {
+            COMMON_FS_DRIVER_OPTIONS,
+            "security_model",
+            "path",
+            "writeout",
+            "fmode",
+            "dmode",
+            "multidevs",
+            "throttling.bps-total",
+            "throttling.bps-read",
+            "throttling.bps-write",
+            "throttling.iops-total",
+            "throttling.iops-read",
+            "throttling.iops-write",
+            "throttling.bps-total-max",
+            "throttling.bps-read-max",
+            "throttling.bps-write-max",
+            "throttling.iops-total-max",
+            "throttling.iops-read-max",
+            "throttling.iops-write-max",
+            "throttling.bps-total-max-length",
+            "throttling.bps-read-max-length",
+            "throttling.bps-write-max-length",
+            "throttling.iops-total-max-length",
+            "throttling.iops-read-max-length",
+            "throttling.iops-write-max-length",
+            "throttling.iops-size",
+            NULL
+        },
+    },
+    {
+        .name = "synth",
+        .ops = &synth_ops,
+        .opts = (const char * []) {
+            COMMON_FS_DRIVER_OPTIONS,
+            NULL
+        },
+    },
+    {
+        .name = "proxy",
+        .ops = &proxy_ops,
+        .opts = (const char * []) {
+            COMMON_FS_DRIVER_OPTIONS,
+            "socket",
+            "sock_fd",
+            "writeout",
+            NULL
+        },
+    },
 };
 
+static int validate_opt(void *opaque, const char *name, const char *value,
+                        Error **errp)
+{
+    FsDriverTable *drv = opaque;
+    const char **opt;
+
+    for (opt = drv->opts; *opt; opt++) {
+        if (!strcmp(*opt, name)) {
+            return 0;
+        }
+    }
+
+    error_setg(errp, "'%s' is invalid for fsdriver '%s'", name, drv->name);
+    return -1;
+}
+
 int qemu_fsdev_add(QemuOpts *opts, Error **errp)
 {
     int i;
@@ -42,6 +133,14 @@ int qemu_fsdev_add(QemuOpts *opts, Error **errp)
     }
 
     if (fsdriver) {
+        if (strncmp(fsdriver, "proxy", 5) == 0) {
+            warn_report(
+                "'-fsdev proxy' and '-virtfs proxy' are deprecated, use "
+                "'local' instead of 'proxy, or consider deploying virtiofsd "
+                "as alternative to 9p"
+            );
+        }
+
         for (i = 0; i < ARRAY_SIZE(FsDrivers); i++) {
             if (strcmp(FsDrivers[i].name, fsdriver) == 0) {
                 break;
@@ -57,6 +156,10 @@ int qemu_fsdev_add(QemuOpts *opts, Error **errp)
         return -1;
     }
 
+    if (qemu_opt_foreach(opts, validate_opt, &FsDrivers[i], errp)) {
+        return -1;
+    }
+
     fsle = g_malloc0(sizeof(*fsle));
     fsle->fse.fsdev_id = g_strdup(fsdev_id);
     fsle->fse.ops = FsDrivers[i].ops;