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

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