git.ozlabs.org Git - petitboot/blob - devices/native-parser.c

   1
   2 #include "parser.h"
   3 #include "params.h"
   4
   5 #include <stdlib.h>
   6 #include <stdio.h>
   7 #include <string.h>
   8
   9 const char *conf_filename = "/boot/petitboot.conf";
  10
  11 static struct boot_option *cur_opt;
  12 static struct device *dev;
  13 static const char *mountpoint;
  14 int device_added;
  15
  16 int check_and_add_device(struct device *dev)
  17 {
  18         if (!dev->icon_file)
  19                 dev->icon_file = strdup(generic_icon_file(guess_device_type()));
  20
  21         return !add_device(dev);
  22 }
  23
  24 static int section(char *section_name)
  25 {
  26         if (!device_added++ && !check_and_add_device(dev))
  27                 return 0;
  28
  29         if (cur_opt) {
  30                 add_boot_option(cur_opt);
  31                 free_boot_option(cur_opt);
  32         }
  33
  34         cur_opt = malloc(sizeof(*cur_opt));
  35         memset(cur_opt, 0, sizeof(*cur_opt));
  36         return 1;
  37 }
  38
  39
  40 static void set_boot_option_parameter(struct boot_option *opt,
  41                 const char *name, const char *value)
  42 {
  43         if (streq(name, "name"))
  44                 opt->name = strdup(value);
  45
  46         else if (streq(name, "description"))
  47                 opt->description = strdup(value);
  48
  49         else if (streq(name, "image"))
  50                 opt->boot_image_file = join_paths(mountpoint, value);
  51
  52         else if (streq(name, "icon"))
  53                 opt->icon_file = join_paths(mountpoint, value);
  54
  55         else if (streq(name, "initrd"))
  56                 opt->initrd_file = join_paths(mountpoint, value);
  57
  58         else if (streq(name, "args"))
  59                 opt->boot_args = strdup(value);
  60
  61         else
  62                 fprintf(stderr, "Unknown parameter %s\n", name);
  63 }
  64
  65 static void set_device_parameter(struct device *dev,
  66                 const char *name, const char *value)
  67 {
  68         if (streq(name, "name"))
  69                 dev->name = strdup(value);
  70
  71         else if (streq(name, "description"))
  72                 dev->description = strdup(value);
  73
  74         else if (streq(name, "icon"))
  75                 dev->icon_file = join_paths(mountpoint, value);
  76 }
  77
  78 static int parameter(char *param_name, char *param_value)
  79 {
  80         if (cur_opt)
  81                 set_boot_option_parameter(cur_opt, param_name, param_value);
  82         else
  83                 set_device_parameter(dev, param_name, param_value);
  84         return 1;
  85 }
  86
  87
  88 int parse(const char *devicepath, const char *_mountpoint)
  89 {
  90         char *filepath;
  91         int rc;
  92
  93         mountpoint = _mountpoint;
  94
  95         filepath = join_paths(mountpoint, conf_filename);
  96
  97         cur_opt = NULL;
  98         dev = malloc(sizeof(*dev));
  99         memset(dev, 0, sizeof(*dev));
 100         dev->id = strdup(devicepath);
 101
 102         rc = pm_process(filepath, section, parameter);
 103         if (!rc)
 104                 return 0;
 105
 106         if (cur_opt) {
 107                 add_boot_option(cur_opt);
 108                 free_boot_option(cur_opt);
 109         }
 110
 111         cur_opt = NULL;
 112
 113         free(filepath);
 114
 115         return 1;
 116 }
 117
 118 struct parser native_parser = {
 119         .name = "native petitboot parser",
 120         .priority = 100,
 121         .parse    = parse
 122 };
 123
 124
 125