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 #include <log/log.h>
   7
   8 #include "discover-server.h"
   9 #include "platform.h"
  10 #include "sysinfo.h"
  11
  12 static struct system_info *sysinfo;
  13 static struct discover_server *server;
  14
  15 const struct system_info *system_info_get(void)
  16 {
  17         return sysinfo;
  18 }
  19
  20
  21 void system_info_set_interface_address(unsigned int hwaddr_size,
  22                 uint8_t *hwaddr, const char *address)
  23 {
  24         struct interface_info *if_info;
  25         unsigned int i;
  26
  27         for (i = 0; i < sysinfo->n_interfaces; i++) {
  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 if a new address
  37                  * is set */
  38                 if (!if_info->address || strcmp(if_info->address, address)) {
  39                         talloc_free(if_info->address);
  40                         if_info->address = talloc_strdup(if_info, address);
  41                         discover_server_notify_system_info(server, sysinfo);
  42                         return;
  43                 }
  44         }
  45
  46         pb_log("Couldn't find interface matching %s\n", "foo");
  47 }
  48
  49 void system_info_register_interface(unsigned int hwaddr_size, uint8_t *hwaddr,
  50                 const char *name, bool link)
  51 {
  52         struct interface_info *if_info;
  53         unsigned int i;
  54
  55         for (i = 0; i < sysinfo->n_interfaces; i++) {
  56                 bool changed = false;
  57
  58                 if_info = sysinfo->interfaces[i];
  59
  60                 if (if_info->hwaddr_size != hwaddr_size)
  61                         continue;
  62
  63                 if (memcmp(if_info->hwaddr, hwaddr, hwaddr_size))
  64                         continue;
  65
  66                 /* Found an existing interface. Notify clients on any name or
  67                  * link changes */
  68                 if (strcmp(if_info->name, name)) {
  69                         talloc_free(if_info->name);
  70                         if_info->name = talloc_strdup(if_info, name);
  71                         changed = true;
  72                 }
  73
  74                 if (if_info->link != link) {
  75                         if_info->link = link;
  76                         changed = true;
  77                 }
  78
  79                 if (changed)
  80                         discover_server_notify_system_info(server, sysinfo);
  81
  82                 return;
  83         }
  84
  85         if_info = talloc_zero(sysinfo, struct interface_info);
  86         if_info->hwaddr_size = hwaddr_size;
  87         if_info->hwaddr = talloc_memdup(if_info, hwaddr, hwaddr_size);
  88         if_info->name = talloc_strdup(if_info, name);
  89         if_info->link = link;
  90
  91         sysinfo->n_interfaces++;
  92         sysinfo->interfaces = talloc_realloc(sysinfo, sysinfo->interfaces,
  93                                                 struct interface_info *,
  94                                                 sysinfo->n_interfaces);
  95         sysinfo->interfaces[sysinfo->n_interfaces - 1] = if_info;
  96
  97         discover_server_notify_system_info(server, sysinfo);
  98 }
  99
 100 void system_info_register_blockdev(const char *name, const char *uuid,
 101                 const char *mountpoint)
 102 {
 103         struct blockdev_info *bd_info;
 104         unsigned int i;
 105
 106         for (i = 0; i < sysinfo->n_blockdevs; i++) {
 107                 bd_info = sysinfo->blockdevs[i];
 108
 109                 if (strcmp(bd_info->name, name))
 110                         continue;
 111
 112                 /* update the mountpoint and UUID, and we're done */
 113                 talloc_free(bd_info->mountpoint);
 114                 bd_info->uuid = talloc_strdup(bd_info, uuid);
 115                 bd_info->mountpoint = talloc_strdup(bd_info, mountpoint);
 116                 discover_server_notify_system_info(server, sysinfo);
 117                 return;
 118         }
 119
 120         bd_info = talloc_zero(sysinfo, struct blockdev_info);
 121         bd_info->name = talloc_strdup(bd_info, name);
 122         bd_info->uuid = talloc_strdup(bd_info, uuid);
 123         bd_info->mountpoint = talloc_strdup(bd_info, mountpoint);
 124
 125         sysinfo->n_blockdevs++;
 126         sysinfo->blockdevs = talloc_realloc(sysinfo, sysinfo->blockdevs,
 127                                                 struct blockdev_info *,
 128                                                 sysinfo->n_blockdevs);
 129         sysinfo->blockdevs[sysinfo->n_blockdevs - 1] = bd_info;
 130
 131         discover_server_notify_system_info(server, sysinfo);
 132 }
 133
 134 void system_info_init(struct discover_server *s)
 135 {
 136         server = s;
 137         sysinfo = talloc_zero(server, struct system_info);
 138         platform_get_sysinfo(sysinfo);
 139 }