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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 <sys/stat.h>
  45. #include <task.h>
  46. #include <malloc.h>
  47. #include <macros.h>
  48. #include <string.h>
  49. #include <devmap.h>
  50. #include "init.h"
  51.  
  52. static void info_print(void)
  53. {
  54.     printf(NAME ": HelenOS init\n");
  55. }
  56.  
  57. static bool mount_root(const char *fstype)
  58. {
  59.     char *opts = "";
  60.     const char *root_dev = "initrd";
  61.    
  62.     if (str_cmp(fstype, "tmpfs") == 0)
  63.         opts = "restore";
  64.    
  65.     int rc = mount(fstype, "/", root_dev, opts, IPC_FLAG_BLOCKING);
  66.    
  67.     switch (rc) {
  68.     case EOK:
  69.         printf(NAME ": Root filesystem mounted, %s at %s\n",
  70.             fstype, root_dev);
  71.         break;
  72.     case EBUSY:
  73.         printf(NAME ": Root filesystem already mounted\n");
  74.         return false;
  75.     case ELIMIT:
  76.         printf(NAME ": Unable to mount root filesystem\n");
  77.         return false;
  78.     case ENOENT:
  79.         printf(NAME ": Unknown filesystem type (%s)\n", fstype);
  80.         return false;
  81.     default:
  82.         printf(NAME ": Error mounting root filesystem (%d)\n", rc);
  83.         return false;
  84.     }
  85.    
  86.     return true;
  87. }
  88.  
  89. static bool mount_devfs(void)
  90. {
  91.     char null[MAX_DEVICE_NAME];
  92.     int null_id = devmap_null_create();
  93.    
  94.     if (null_id == -1) {
  95.         printf(NAME ": Unable to create null device\n");
  96.         return false;
  97.     }
  98.    
  99.     snprintf(null, MAX_DEVICE_NAME, "null%d", null_id);
  100.     int rc = mount("devfs", "/dev", null, "", IPC_FLAG_BLOCKING);
  101.    
  102.     switch (rc) {
  103.     case EOK:
  104.         printf(NAME ": Device filesystem mounted\n");
  105.         break;
  106.     case EBUSY:
  107.         printf(NAME ": Device filesystem already mounted\n");
  108.         devmap_null_destroy(null_id);
  109.         return false;
  110.     case ELIMIT:
  111.         printf(NAME ": Unable to mount device filesystem\n");
  112.         devmap_null_destroy(null_id);
  113.         return false;
  114.     case ENOENT:
  115.         printf(NAME ": Unknown filesystem type (devfs)\n");
  116.         devmap_null_destroy(null_id);
  117.         return false;
  118.     default:
  119.         printf(NAME ": Error mounting device filesystem (%d)\n", rc);
  120.         devmap_null_destroy(null_id);
  121.         return false;
  122.     }
  123.    
  124.     return true;
  125. }
  126.  
  127. static void spawn(char *fname)
  128. {
  129.     char *argv[2];
  130.     struct stat s;
  131.    
  132.     if (stat(fname, &s) == ENOENT)
  133.         return;
  134.    
  135.     printf(NAME ": Spawning %s\n", fname);
  136.    
  137.     argv[0] = fname;
  138.     argv[1] = NULL;
  139.    
  140.     if (!task_spawn(fname, argv))
  141.         printf(NAME ": Error spawning %s\n", fname);
  142. }
  143.  
  144. static void srv_start(char *fname)
  145. {
  146.     char *argv[2];
  147.     task_id_t id;
  148.     task_exit_t texit;
  149.     int rc, retval;
  150.     struct stat s;
  151.    
  152.     if (stat(fname, &s) == ENOENT)
  153.         return;
  154.    
  155.     printf(NAME ": Starting %s\n", fname);
  156.    
  157.     argv[0] = fname;
  158.     argv[1] = NULL;
  159.    
  160.     id = task_spawn(fname, argv);
  161.     if (!id) {
  162.         printf(NAME ": Error spawning %s\n", fname);
  163.         return;
  164.     }
  165.  
  166.     rc = task_wait(id, &texit, &retval);
  167.     if (rc != EOK) {
  168.         printf(NAME ": Error waiting for %s\n", fname);
  169.         return;
  170.     }
  171.  
  172.     if (texit != TASK_EXIT_NORMAL || retval != 0) {
  173.         printf(NAME ": Server %s failed to start (returned %d)\n",
  174.             fname, retval);
  175.     }
  176. }
  177.  
  178. static void getvc(char *dev, char *app)
  179. {
  180.     char *argv[4];
  181.     char vc[MAX_DEVICE_NAME];
  182.     int rc;
  183.    
  184.     snprintf(vc, MAX_DEVICE_NAME, "/dev/%s", dev);
  185.    
  186.     printf(NAME ": Spawning getvc on %s\n", vc);
  187.    
  188.     dev_handle_t handle;
  189.     rc = devmap_device_get_handle(dev, &handle, IPC_FLAG_BLOCKING);
  190.    
  191.     if (rc == EOK) {
  192.         argv[0] = "/app/getvc";
  193.         argv[1] = vc;
  194.         argv[2] = app;
  195.         argv[3] = NULL;
  196.        
  197.         if (!task_spawn("/app/getvc", argv))
  198.             printf(NAME ": Error spawning getvc on %s\n", vc);
  199.     } else {
  200.         printf(NAME ": Error waiting on %s\n", vc);
  201.     }
  202. }
  203.  
  204. void mount_data(void)
  205. {
  206.     int rc;
  207.  
  208.     printf("Trying to mount disk0 on /data... ");
  209.     fflush(stdout);
  210.  
  211.     rc = mount("fat", "/data", "disk0", "wtcache", 0);
  212.     if (rc == EOK)
  213.         printf("OK\n");
  214.     else
  215.         printf("Failed\n");
  216. }
  217.  
  218. int main(int argc, char *argv[])
  219. {
  220.     info_print();
  221.    
  222.     if (!mount_root(STRING(RDFMT))) {
  223.         printf(NAME ": Exiting\n");
  224.         return -1;
  225.     }
  226.    
  227.     spawn("/srv/devfs");
  228.    
  229.     if (!mount_devfs()) {
  230.         printf(NAME ": Exiting\n");
  231.         return -2;
  232.     }
  233.    
  234.     spawn("/srv/fb");
  235.     spawn("/srv/kbd");
  236.     spawn("/srv/console");
  237.     spawn("/srv/fhc");
  238.     spawn("/srv/obio");
  239.  
  240.     /*
  241.      * Start these synchronously so that mount_data() can be
  242.      * non-blocking.
  243.      */
  244.     srv_start("/srv/ata_bd");
  245.     srv_start("/srv/gxe_bd");
  246.    
  247.     mount_data();
  248.    
  249.     getvc("vc0", "/app/bdsh");
  250.     getvc("vc1", "/app/bdsh");
  251.     getvc("vc2", "/app/bdsh");
  252.     getvc("vc3", "/app/bdsh");
  253.     getvc("vc4", "/app/bdsh");
  254.     getvc("vc5", "/app/bdsh");
  255.     getvc("vc6", "/app/klog");
  256.    
  257.     return 0;
  258. }
  259.  
  260. /** @}
  261.  */
  262.