git.ozlabs.org Git - petitboot/blob - discover/sysinfo.c

   1
   2 #include <string.h>
   3
   4 #include <talloc/talloc.h>
   5 #include <process/process.h>
   6
   7 #include "discover-server.h"
   8 #include "platform.h"
   9 #include "sysinfo.h"
  10
  11 static struct system_info *sysinfo;
  12 static struct discover_server *server;
  13
  14 const struct system_info *system_info_get(void)
  15 {
  16         return sysinfo;
  17 }
  18
  19 void system_info_register_interface(unsigned int hwaddr_size, uint8_t *hwaddr,
  20                 const char *name, bool link)
  21 {
  22         struct interface_info *if_info;
  23         unsigned int i;
  24
  25         for (i = 0; i < sysinfo->n_interfaces; i++) {
  26                 bool changed = false;
  27
  28                 if_info = sysinfo->interfaces[i];
  29
  30                 if (if_info->hwaddr_size != hwaddr_size)
  31                         continue;
  32
  33                 if (memcmp(if_info->hwaddr, hwaddr, hwaddr_size))
  34                         continue;
  35
  36                 /* Found an existing interface. Notify clients on any name or
  37                  * link changes */
  38                 if (strcmp(if_info->name, name)) {
  39                         talloc_free(if_info->name);
  40                         if_info->name = talloc_strdup(if_info, name);
  41                         changed = true;
  42                 }
  43
  44                 if (if_info->link != link) {
  45                         if_info->link = link;
  46                         changed = true;
  47                 }
  48
  49                 if (changed)
  50                         discover_server_notify_system_info(server, sysinfo);
  51
  52                 return;
  53         }
  54
  55         if_info = talloc_zero(sysinfo, struct interface_info);
  56         if_info->hwaddr_size = hwaddr_size;
  57         if_info->hwaddr = talloc_memdup(if_info, hwaddr, hwaddr_size);
  58         if_info->name = talloc_strdup(if_info, name);
  59         if_info->link = link;
  60
  61         sysinfo->n_interfaces++;
  62         sysinfo->interfaces = talloc_realloc(sysinfo, sysinfo->interfaces,
  63                                                 struct interface_info *,
  64                                                 sysinfo->n_interfaces);
  65         sysinfo->interfaces[sysinfo->n_interfaces - 1] = if_info;
  66
  67         discover_server_notify_system_info(server, sysinfo);
  68 }
  69
  70 void system_info_register_blockdev(const char *name, const char *uuid,
  71                 const char *mountpoint)
  72 {
  73         struct blockdev_info *bd_info;
  74         unsigned int i;
  75
  76         for (i = 0; i < sysinfo->n_blockdevs; i++) {
  77                 bd_info = sysinfo->blockdevs[i];
  78
  79                 if (strcmp(bd_info->name, name))
  80                         continue;
  81
  82                 /* update the mountpoint and UUID, and we're done */
  83                 talloc_free(bd_info->mountpoint);
  84                 bd_info->uuid = talloc_strdup(bd_info, uuid);
  85                 bd_info->mountpoint = talloc_strdup(bd_info, mountpoint);
  86                 discover_server_notify_system_info(server, sysinfo);
  87                 return;
  88         }
  89
  90         bd_info = talloc_zero(sysinfo, struct blockdev_info);
  91         bd_info->name = talloc_strdup(bd_info, name);
  92         bd_info->uuid = talloc_strdup(bd_info, uuid);
  93         bd_info->mountpoint = talloc_strdup(bd_info, mountpoint);
  94
  95         sysinfo->n_blockdevs++;
  96         sysinfo->blockdevs = talloc_realloc(sysinfo, sysinfo->blockdevs,
  97                                                 struct blockdev_info *,
  98                                                 sysinfo->n_blockdevs);
  99         sysinfo->blockdevs[sysinfo->n_blockdevs - 1] = bd_info;
 100
 101         discover_server_notify_system_info(server, sysinfo);
 102 }
 103
 104 void system_info_init(struct discover_server *s)
 105 {
 106         server = s;
 107         sysinfo = talloc_zero(server, struct system_info);
 108         platform_get_sysinfo(sysinfo);
 109 }