ps.c

   1 #include <errno.h>
   2 #include <string.h>
   3
   4 #include <netlink/genl/genl.h>
   5 #include <netlink/msg.h>
   6 #include <netlink/attr.h>
   7
   8 #include "nl80211.h"
   9 #include "iw.h"
  10
  11 static int set_power_save(struct nl80211_state *state,
  12                           struct nl_msg *msg,
  13                           int argc, char **argv,
  14                           enum id_input id)
  15 {
  16         enum nl80211_ps_state ps_state;
  17
  18         if (argc != 1) {
  19                 printf("Invalid parameters!\n");
  20                 return 2;
  21         }
  22
  23         if (strcmp(argv[0], "on") == 0)
  24                 ps_state = NL80211_PS_ENABLED;
  25         else if (strcmp(argv[0], "off") == 0)
  26                 ps_state = NL80211_PS_DISABLED;
  27         else {
  28                 printf("Invalid parameter: %s\n", argv[0]);
  29                 return 2;
  30         }
  31
  32         NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
  33
  34         return 0;
  35
  36  nla_put_failure:
  37         return -ENOBUFS;
  38 }
  39
  40 COMMAND(set, power_save, "<on|off>",
  41         NL80211_CMD_SET_POWER_SAVE, 0, CIB_NETDEV, set_power_save,
  42         "Set power save state to on or off.");
  43
  44 static int print_power_save_handler(struct nl_msg *msg, void *arg)
  45 {
  46         struct nlattr *attrs[NL80211_ATTR_MAX + 1];
  47         struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
  48         const char *s;
  49
  50         nla_parse(attrs, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
  51                   genlmsg_attrlen(gnlh, 0), NULL);
  52
  53         if (!attrs[NL80211_ATTR_PS_STATE])
  54                 return NL_SKIP;
  55
  56         switch (nla_get_u32(attrs[NL80211_ATTR_PS_STATE])) {
  57         case NL80211_PS_ENABLED:
  58                 s = "on";
  59                 break;
  60         case NL80211_PS_DISABLED:
  61         default:
  62                 s = "off";
  63                 break;
  64         }
  65
  66         printf("Power save: %s\n", s);
  67
  68         return NL_SKIP;
  69 }
  70
  71 static int get_power_save(struct nl80211_state *state,
  72                           struct nl_msg *msg,
  73                           int argc, char **argv,
  74                           enum id_input id)
  75 {
  76         register_handler(print_power_save_handler, NULL);
  77         return 0;
  78 }
  79
  80 COMMAND(get, power_save, "<param>",
  81         NL80211_CMD_GET_POWER_SAVE, 0, CIB_NETDEV, get_power_save,
  82         "Retrieve power save state.");