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  1. /*
  2.  * Copyright (c) 2005 Martin Decky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup init Init
  30.  * @brief Init process for user space environment configuration.
  31.  * @{
  32.  */
  33. /**
  34.  * @file
  35.  */
  36.  
  37. #include <stdio.h>
  38. #include <unistd.h>
  39. #include <ipc/ipc.h>
  40. #include <vfs/vfs.h>
  41. #include <bool.h>
  42. #include <errno.h>
  43. #include <fcntl.h>
  44. #include <task.h>
  45. #include <malloc.h>
  46. #include <macros.h>
  47. #include <string.h>
  48. #include <devmap.h>
  49. #include "init.h"
  50.  
  51. static void info_print(void)
  52. {
  53.     printf(NAME ": HelenOS init\n");
  54. }
  55.  
  56. static bool mount_root(const char *fstype)
  57. {
  58.     char *opts = "";
  59.     const char *root_dev = "initrd";
  60.    
  61.     if (str_cmp(fstype, "tmpfs") == 0)
  62.         opts = "restore";
  63.    
  64.     int rc = mount(fstype, "/", root_dev, opts, IPC_FLAG_BLOCKING);
  65.    
  66.     switch (rc) {
  67.     case EOK:
  68.         printf(NAME ": Root filesystem mounted, %s at %s\n",
  69.             fstype, root_dev);
  70.         break;
  71.     case EBUSY:
  72.         printf(NAME ": Root filesystem already mounted\n");
  73.         return false;
  74.     case ELIMIT:
  75.         printf(NAME ": Unable to mount root filesystem\n");
  76.         return false;
  77.     case ENOENT:
  78.         printf(NAME ": Unknown filesystem type (%s)\n", fstype);
  79.         return false;
  80.     default:
  81.         printf(NAME ": Error mounting root filesystem (%d)\n", rc);
  82.         return false;
  83.     }
  84.    
  85.     return true;
  86. }
  87.  
  88. static bool mount_devfs(void)
  89. {
  90.     char null[MAX_DEVICE_NAME];
  91.     int null_id = devmap_null_create();
  92.    
  93.     if (null_id == -1) {
  94.         printf(NAME ": Unable to create null device\n");
  95.         return false;
  96.     }
  97.    
  98.     snprintf(null, MAX_DEVICE_NAME, "null%d", null_id);
  99.     int rc = mount("devfs", "/dev", null, "", IPC_FLAG_BLOCKING);
  100.    
  101.     switch (rc) {
  102.     case EOK:
  103.         printf(NAME ": Device filesystem mounted\n");
  104.         break;
  105.     case EBUSY:
  106.         printf(NAME ": Device filesystem already mounted\n");
  107.         devmap_null_destroy(null_id);
  108.         return false;
  109.     case ELIMIT:
  110.         printf(NAME ": Unable to mount device filesystem\n");
  111.         devmap_null_destroy(null_id);
  112.         return false;
  113.     case ENOENT:
  114.         printf(NAME ": Unknown filesystem type (devfs)\n");
  115.         devmap_null_destroy(null_id);
  116.         return false;
  117.     default:
  118.         printf(NAME ": Error mounting device filesystem (%d)\n", rc);
  119.         devmap_null_destroy(null_id);
  120.         return false;
  121.     }
  122.    
  123.     return true;
  124. }
  125.  
  126. static void spawn(char *fname)
  127. {
  128.     char *argv[2];
  129.    
  130.     printf(NAME ": Spawning %s\n", fname);
  131.    
  132.     argv[0] = fname;
  133.     argv[1] = NULL;
  134.    
  135.     if (!task_spawn(fname, argv))
  136.         printf(NAME ": Error spawning %s\n", fname);
  137. }
  138.  
  139. static void srv_start(char *fname)
  140. {
  141.     char *argv[2];
  142.     task_id_t id;
  143.     task_exit_t texit;
  144.     int rc, retval;
  145.    
  146.     printf(NAME ": Starting %s\n", fname);
  147.    
  148.     argv[0] = fname;
  149.     argv[1] = NULL;
  150.    
  151.     id = task_spawn(fname, argv);
  152.     if (!id) {
  153.         printf(NAME ": Error spawning %s\n", fname);
  154.         return;
  155.     }
  156.  
  157.     rc = task_wait(id, &texit, &retval);
  158.     if (rc != EOK) {
  159.         printf(NAME ": Error waiting for %s\n", fname);
  160.         return;
  161.     }
  162.  
  163.     if (texit != TASK_EXIT_NORMAL || retval != 0) {
  164.         printf(NAME ": Server %s failed to start (returned %d)\n",
  165.             fname, retval);
  166.     }
  167. }
  168.  
  169. static void getvc(char *dev, char *app)
  170. {
  171.     char *argv[4];
  172.     char vc[MAX_DEVICE_NAME];
  173.     int rc;
  174.    
  175.     snprintf(vc, MAX_DEVICE_NAME, "/dev/%s", dev);
  176.    
  177.     printf(NAME ": Spawning getvc on %s\n", vc);
  178.    
  179.     dev_handle_t handle;
  180.     rc = devmap_device_get_handle(dev, &handle, IPC_FLAG_BLOCKING);
  181.    
  182.     if (rc == EOK) {
  183.         argv[0] = "/app/getvc";
  184.         argv[1] = vc;
  185.         argv[2] = app;
  186.         argv[3] = NULL;
  187.        
  188.         if (!task_spawn("/app/getvc", argv))
  189.             printf(NAME ": Error spawning getvc on %s\n", vc);
  190.     } else {
  191.         printf(NAME ": Error waiting on %s\n", vc);
  192.     }
  193. }
  194.  
  195. void mount_data(void)
  196. {
  197.     int rc;
  198.  
  199.     printf("Trying to mount disk0 on /data... ");
  200.     fflush(stdout);
  201.  
  202.     rc = mount("fat", "/data", "disk0", "wtcache", 0);
  203.     if (rc == EOK)
  204.         printf("OK\n");
  205.     else
  206.         printf("Failed\n");
  207. }
  208.  
  209. int main(int argc, char *argv[])
  210. {
  211.     info_print();
  212.    
  213.     if (!mount_root(STRING(RDFMT))) {
  214.         printf(NAME ": Exiting\n");
  215.         return -1;
  216.     }
  217.    
  218.     spawn("/srv/devfs");
  219.    
  220.     if (!mount_devfs()) {
  221.         printf(NAME ": Exiting\n");
  222.         return -2;
  223.     }
  224.    
  225.     spawn("/srv/fb");
  226.     spawn("/srv/kbd");
  227.     spawn("/srv/console");
  228.     spawn("/srv/fhc");
  229.     spawn("/srv/obio");
  230.  
  231.     /*
  232.      * Start these synchronously so that mount_data() can be
  233.      * non-blocking.
  234.      */
  235.     srv_start("/srv/ata_bd");
  236.     srv_start("/srv/gxe_bd");
  237.    
  238.     mount_data();
  239.    
  240.     getvc("vc0", "/app/bdsh");
  241.     getvc("vc1", "/app/bdsh");
  242.     getvc("vc2", "/app/bdsh");
  243.     getvc("vc3", "/app/bdsh");
  244.     getvc("vc4", "/app/bdsh");
  245.     getvc("vc5", "/app/bdsh");
  246.     getvc("vc6", "/app/klog");
  247.    
  248.     return 0;
  249. }
  250.  
  251. /** @}
  252.  */
  253.