fs Add mount subcommand

user/fs/main.c

@@ -2,9 +2,9 @@
 #include <stddef.h>
 #include <ulib.h>
 
-#define CMDS(X)                 \
-  X(fetch)    X(mkf)    X(mkd)  \
-  X(tree)
+#define CMDS(X)                     \
+  X(fetch)    X(mkf)    X(mkd)      \
+  X(tree)     X(mount)
 
 void main(void) {
   if (argslen() == 0) {

user/fs/mkf.c

@@ -27,6 +27,10 @@ void fs_mkf(void) {
   }
 
   IOH ioh = ioctl(IOCTL_NOHANDLE, IOCTL_OPENF, (uint64_t)path, IOCTL_F_MAKE | IOCTL_F_WRITE, 0);
+  if (ioh < 0) {
+    uprintf("fs mkf: could not create %s\n", path);
+    return;
+  }
   if (FS_MKF_CONFIG.write != NULL) {
     if (ioctl(ioh, IOCTL_WRITE, (uint64_t)FS_MKF_CONFIG.write, string_len(FS_MKF_CONFIG.write), 0) < 0) {
       uprintf("fs mkf: could not write to %s\n", path);

user/fs/mount.c

@@ -0,0 +1,56 @@
+#include <stddef.h>
+#include <stdint.h>
+#include <ulib.h>
+
+struct {
+  char *mountpoint;
+  char *fstype;
+  char *devname;
+  bool format;
+} FS_MOUNT_CONFIG = {0};
+
+static Arg ARGS[] = {
+  ARG("-mp", ARG_STRING, &FS_MOUNT_CONFIG.mountpoint),
+  ARG("-fs", ARG_STRING, &FS_MOUNT_CONFIG.fstype),
+  ARG("-dev", ARG_STRING, &FS_MOUNT_CONFIG.devname),
+  ARG("-fmt", ARG_BOOL, &FS_MOUNT_CONFIG.format),
+  ARG_END(),
+};
+
+void fs_mount(void) {
+  int32_t ret;
+  if ((ret = parse_args(args()+1, argslen()-1, ARGS)) < 0) {
+    uprintf("fs: could not parse args: %d\n", ret);
+    return;
+  }
+
+  if (FS_MOUNT_CONFIG.mountpoint == NULL) {
+    uprintf("fs: mountpoint missing\n");
+    return;
+  }
+  
+  if (FS_MOUNT_CONFIG.fstype == NULL) {
+    uprintf("fs: filesystem type missing\n");
+    return;
+  }
+  
+  if (FS_MOUNT_CONFIG.devname == NULL) {
+    uprintf("fs: device name missing\n");
+    return;
+  }
+
+  Dev_t dev;
+  ret = devctl(&dev, DEVCTL_GET_HANDLE, (uint8_t *)FS_MOUNT_CONFIG.devname, 0, 0);
+  if (ret != E_OK) {
+    uprintf("fs: device %s not found\n", FS_MOUNT_CONFIG.devname);
+    return;
+  }
+
+  ret = vfsmount(FS_MOUNT_CONFIG.mountpoint, FS_MOUNT_CONFIG.fstype, &dev, FS_MOUNT_CONFIG.format);
+  if (ret != E_OK) {
+    uprintf("fs: mount error %s\n", ERRSTRING(ret));
+    return;
+  } else {
+    uprintf("OK %s\n", FS_MOUNT_CONFIG.mountpoint);
+  }
+}