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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 <config.h>
  51. #include "init.h"
  52.  
  53. static void info_print(void)
  54. {
  55.     printf(NAME ": HelenOS init\n");
  56. }
  57.  
  58. static bool mount_root(const char *fstype)
  59. {
  60.     char *opts = "";
  61.     const char *root_dev = "initrd";
  62.    
  63.     if (str_cmp(fstype, "tmpfs") == 0)
  64.         opts = "restore";
  65.    
  66.     int rc = mount(fstype, "/", root_dev, opts, IPC_FLAG_BLOCKING);
  67.    
  68.     switch (rc) {
  69.     case EOK:
  70.         printf(NAME ": Root filesystem mounted, %s at %s\n",
  71.             fstype, root_dev);
  72.         break;
  73.     case EBUSY:
  74.         printf(NAME ": Root filesystem already mounted\n");
  75.         return false;
  76.     case ELIMIT:
  77.         printf(NAME ": Unable to mount root filesystem\n");
  78.         return false;
  79.     case ENOENT:
  80.         printf(NAME ": Unknown filesystem type (%s)\n", fstype);
  81.         return false;
  82.     default:
  83.         printf(NAME ": Error mounting root filesystem (%d)\n", rc);
  84.         return false;
  85.     }
  86.    
  87.     return true;
  88. }
  89.  
  90. static bool mount_devfs(void)
  91. {
  92.     char null[MAX_DEVICE_NAME];
  93.     int null_id = devmap_null_create();
  94.    
  95.     if (null_id == -1) {
  96.         printf(NAME ": Unable to create null device\n");
  97.         return false;
  98.     }
  99.    
  100.     snprintf(null, MAX_DEVICE_NAME, "null%d", null_id);
  101.     int rc = mount("devfs", "/dev", null, "", IPC_FLAG_BLOCKING);
  102.    
  103.     switch (rc) {
  104.     case EOK:
  105.         printf(NAME ": Device filesystem mounted\n");
  106.         break;
  107.     case EBUSY:
  108.         printf(NAME ": Device filesystem already mounted\n");
  109.         devmap_null_destroy(null_id);
  110.         return false;
  111.     case ELIMIT:
  112.         printf(NAME ": Unable to mount device filesystem\n");
  113.         devmap_null_destroy(null_id);
  114.         return false;
  115.     case ENOENT:
  116.         printf(NAME ": Unknown filesystem type (devfs)\n");
  117.         devmap_null_destroy(null_id);
  118.         return false;
  119.     default:
  120.         printf(NAME ": Error mounting device filesystem (%d)\n", rc);
  121.         devmap_null_destroy(null_id);
  122.         return false;
  123.     }
  124.    
  125.     return true;
  126. }
  127.  
  128. static void spawn(char *fname)
  129. {
  130.     char *argv[2];
  131.     struct stat s;
  132.    
  133.     if (stat(fname, &s) == ENOENT)
  134.         return;
  135.    
  136.     printf(NAME ": Spawning %s\n", fname);
  137.    
  138.     argv[0] = fname;
  139.     argv[1] = NULL;
  140.    
  141.     if (!task_spawn(fname, argv))
  142.         printf(NAME ": Error spawning %s\n", fname);
  143. }
  144.  
  145. static void srv_start(char *fname)
  146. {
  147.     char *argv[2];
  148.     task_id_t id;
  149.     task_exit_t texit;
  150.     int rc, retval;
  151.     struct stat s;
  152.    
  153.     if (stat(fname, &s) == ENOENT)
  154.         return;
  155.    
  156.     printf(NAME ": Starting %s\n", fname);
  157.    
  158.     argv[0] = fname;
  159.     argv[1] = NULL;
  160.    
  161.     id = task_spawn(fname, argv);
  162.     if (!id) {
  163.         printf(NAME ": Error spawning %s\n", fname);
  164.         return;
  165.     }
  166.  
  167.     rc = task_wait(id, &texit, &retval);
  168.     if (rc != EOK) {
  169.         printf(NAME ": Error waiting for %s\n", fname);
  170.         return;
  171.     }
  172.  
  173.     if (texit != TASK_EXIT_NORMAL || retval != 0) {
  174.         printf(NAME ": Server %s failed to start (returned %d)\n",
  175.             fname, retval);
  176.     }
  177. }
  178.  
  179. static void getvc(char *dev, char *app)
  180. {
  181.     char *argv[4];
  182.     char vc[MAX_DEVICE_NAME];
  183.     int rc;
  184.    
  185.     snprintf(vc, MAX_DEVICE_NAME, "/dev/%s", dev);
  186.    
  187.     printf(NAME ": Spawning getvc on %s\n", vc);
  188.    
  189.     dev_handle_t handle;
  190.     rc = devmap_device_get_handle(dev, &handle, IPC_FLAG_BLOCKING);
  191.    
  192.     if (rc == EOK) {
  193.         argv[0] = "/app/getvc";
  194.         argv[1] = vc;
  195.         argv[2] = app;
  196.         argv[3] = NULL;
  197.        
  198.         if (!task_spawn("/app/getvc", argv))
  199.             printf(NAME ": Error spawning getvc on %s\n", vc);
  200.     } else {
  201.         printf(NAME ": Error waiting on %s\n", vc);
  202.     }
  203. }
  204.  
  205. static void mount_data(void)
  206. {
  207.     int rc;
  208.  
  209.     printf("Trying to mount disk0 on /data... ");
  210.     fflush(stdout);
  211.  
  212.     rc = mount("fat", "/data", "disk0", "wtcache", 0);
  213.     if (rc == EOK)
  214.         printf("OK\n");
  215.     else
  216.         printf("Failed\n");
  217. }
  218.  
  219. int main(int argc, char *argv[])
  220. {
  221.     info_print();
  222.    
  223.     if (!mount_root(STRING(RDFMT))) {
  224.         printf(NAME ": Exiting\n");
  225.         return -1;
  226.     }
  227.    
  228.     spawn("/srv/devfs");
  229.    
  230.     if (!mount_devfs()) {
  231.         printf(NAME ": Exiting\n");
  232.         return -2;
  233.     }
  234.    
  235.     spawn("/srv/fb");
  236.     spawn("/srv/kbd");
  237.     spawn("/srv/console");
  238.     spawn("/srv/fhc");
  239.     spawn("/srv/obio");
  240.  
  241.     /*
  242.      * Start these synchronously so that mount_data() can be
  243.      * non-blocking.
  244.      */
  245. #ifdef CONFIG_START_BD
  246.     srv_start("/srv/ata_bd");
  247.     srv_start("/srv/gxe_bd");
  248. #else
  249.     (void) srv_start;
  250. #endif
  251.  
  252. #ifdef CONFIG_MOUNT_DATA
  253.     mount_data();
  254. #else
  255.     (void) mount_data;
  256. #endif
  257.  
  258.     getvc("vc0", "/app/bdsh");
  259.     getvc("vc1", "/app/bdsh");
  260.     getvc("vc2", "/app/bdsh");
  261.     getvc("vc3", "/app/bdsh");
  262.     getvc("vc4", "/app/bdsh");
  263.     getvc("vc5", "/app/bdsh");
  264.     getvc("vc6", "/app/klog");
  265.    
  266.     return 0;
  267. }
  268.  
  269. /** @}
  270.  */
  271.