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