#include <net/if.h>
#include <errno.h>
#include <string.h>
+#include <stdbool.h>
#include <netlink/genl/genl.h>
#include <netlink/genl/family.h>
#include "nl80211.h"
#include "iw.h"
+SECTION(reg);
+
#define MHZ_TO_KHZ(freq) ((freq) * 1000)
#define KHZ_TO_MHZ(freq) ((freq) / 1000)
#define DBI_TO_MBI(gain) ((gain) * 100)
#define DBM_TO_MBM(gain) ((gain) * 100)
#define MBM_TO_DBM(gain) ((gain) / 100)
-static int isalpha_upper(char letter)
+static bool isalpha_upper(char letter)
{
if (letter >= 65 && letter <= 90)
- return 1;
- return 0;
+ return true;
+ return false;
}
-static int is_alpha2(char *alpha2)
+static bool is_alpha2(char *alpha2)
{
if (isalpha_upper(alpha2[0]) && isalpha_upper(alpha2[1]))
- return 1;
- return 0;
+ return true;
+ return false;
}
-static int is_world_regdom(char *alpha2)
+static bool is_world_regdom(char *alpha2)
{
/* ASCII 0 */
if (alpha2[0] == 48 && alpha2[1] == 48)
- return 1;
- return 0;
+ return true;
+ return false;
+}
+
+char *reg_initiator_to_string(__u8 initiator)
+{
+ switch (initiator) {
+ case NL80211_REGDOM_SET_BY_CORE:
+ return "the wireless core upon initialization";
+ case NL80211_REGDOM_SET_BY_USER:
+ return "a user";
+ case NL80211_REGDOM_SET_BY_DRIVER:
+ return "a driver";
+ case NL80211_REGDOM_SET_BY_COUNTRY_IE:
+ return "a country IE";
+ default:
+ return "BUG";
+ }
+}
+
+static const char *dfs_domain_name(enum nl80211_dfs_regions region)
+{
+ switch (region) {
+ case NL80211_DFS_UNSET:
+ return "DFS-UNSET";
+ case NL80211_DFS_FCC:
+ return "DFS-FCC";
+ case NL80211_DFS_ETSI:
+ return "DFS-ETSI";
+ case NL80211_DFS_JP:
+ return "DFS-JP";
+ default:
+ return "DFS-invalid";
+ }
}
-static int handle_reg_set(struct nl_cb *cb,
+static int handle_reg_set(struct nl80211_state *state,
+ struct nl_cb *cb,
struct nl_msg *msg,
- int argc, char **argv)
+ int argc, char **argv,
+ enum id_input id)
{
char alpha2[3];
return -ENOBUFS;
}
COMMAND(reg, set, "<ISO/IEC 3166-1 alpha2>",
- NL80211_CMD_REQ_SET_REG, 0, CIB_NONE, handle_reg_set);
+ NL80211_CMD_REQ_SET_REG, 0, CIB_NONE, handle_reg_set,
+ "Notify the kernel about the current regulatory domain.");
static int print_reg_handler(struct nl_msg *msg, void *arg)
-
{
#define PARSE_FLAG(nl_flag, string_value) do { \
if ((flags & nl_flag)) { \
char *alpha2;
struct nlattr *nl_rule;
int rem_rule;
- static struct nla_policy reg_rule_policy[NL80211_FREQUENCY_ATTR_MAX + 1] = {
- [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
- [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
- [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
- [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
- [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
- [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
+ enum nl80211_dfs_regions dfs_domain;
+ static struct nla_policy reg_rule_policy[NL80211_REG_RULE_ATTR_MAX + 1] = {
+ [NL80211_ATTR_REG_RULE_FLAGS] = { .type = NLA_U32 },
+ [NL80211_ATTR_FREQ_RANGE_START] = { .type = NLA_U32 },
+ [NL80211_ATTR_FREQ_RANGE_END] = { .type = NLA_U32 },
+ [NL80211_ATTR_FREQ_RANGE_MAX_BW] = { .type = NLA_U32 },
+ [NL80211_ATTR_POWER_RULE_MAX_ANT_GAIN] = { .type = NLA_U32 },
+ [NL80211_ATTR_POWER_RULE_MAX_EIRP] = { .type = NLA_U32 },
+ [NL80211_ATTR_DFS_CAC_TIME] = { .type = NLA_U32 },
};
nla_parse(tb_msg, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
return NL_SKIP;
}
+ if (tb_msg[NL80211_ATTR_WIPHY])
+ printf("phy#%d%s\n", nla_get_u32(tb_msg[NL80211_ATTR_WIPHY]),
+ tb_msg[NL80211_ATTR_WIPHY_SELF_MANAGED_REG] ?
+ " (self-managed)" : "");
+ else
+ printf("global\n");
+
+ if (tb_msg[NL80211_ATTR_DFS_REGION])
+ dfs_domain = nla_get_u8(tb_msg[NL80211_ATTR_DFS_REGION]);
+ else
+ dfs_domain = NL80211_DFS_UNSET;
+
alpha2 = nla_data(tb_msg[NL80211_ATTR_REG_ALPHA2]);
- printf("country %s:\n", alpha2);
+ printf("country %c%c: %s\n", alpha2[0], alpha2[1], dfs_domain_name(dfs_domain));
nla_for_each_nested(nl_rule, tb_msg[NL80211_ATTR_REG_RULES], rem_rule) {
- struct nlattr *tb_rule[NL80211_FREQUENCY_ATTR_MAX + 1];
+ struct nlattr *tb_rule[NL80211_REG_RULE_ATTR_MAX + 1];
__u32 flags, start_freq_khz, end_freq_khz, max_bw_khz, max_ant_gain_mbi, max_eirp_mbm;
- nla_parse(tb_rule, NL80211_FREQUENCY_ATTR_MAX, nla_data(nl_rule), nla_len(nl_rule), reg_rule_policy);
+ nla_parse(tb_rule, NL80211_REG_RULE_ATTR_MAX, nla_data(nl_rule), nla_len(nl_rule), reg_rule_policy);
flags = nla_get_u32(tb_rule[NL80211_ATTR_REG_RULE_FLAGS]);
start_freq_khz = nla_get_u32(tb_rule[NL80211_ATTR_FREQ_RANGE_START]);
printf(", %d)", MBM_TO_DBM(max_eirp_mbm));
+ if ((flags & NL80211_RRF_DFS) && tb_rule[NL80211_ATTR_DFS_CAC_TIME])
+ printf(", (%u ms)", nla_get_u32(tb_rule[NL80211_ATTR_DFS_CAC_TIME]));
+ else
+ printf(", (N/A)");
+
if (!flags) {
printf("\n");
continue;
PARSE_FLAG(NL80211_RRF_NO_OUTDOOR, "NO-OUTDOOR");
PARSE_FLAG(NL80211_RRF_DFS, "DFS");
PARSE_FLAG(NL80211_RRF_PTP_ONLY, "PTP-ONLY");
- PARSE_FLAG(NL80211_RRF_PASSIVE_SCAN, "PASSIVE-SCAN");
- PARSE_FLAG(NL80211_RRF_NO_IBSS, "NO-IBSS");
+ PARSE_FLAG(NL80211_RRF_AUTO_BW, "AUTO-BW");
+ PARSE_FLAG(NL80211_RRF_GO_CONCURRENT, "GO-CONCURRENT");
+ PARSE_FLAG(NL80211_RRF_NO_HT40MINUS, "NO-HT40MINUS");
+ PARSE_FLAG(NL80211_RRF_NO_HT40PLUS, "NO-HT40PLUS");
+ PARSE_FLAG(NL80211_RRF_NO_80MHZ, "NO-80MHZ");
+ PARSE_FLAG(NL80211_RRF_NO_160MHZ, "NO-160MHZ");
+
+ /* Kernels that support NO_IR always turn on both flags */
+ if ((flags & NL80211_RRF_NO_IR) && (flags & __NL80211_RRF_NO_IBSS)) {
+ printf(", NO-IR");
+ } else {
+ PARSE_FLAG(NL80211_RRF_PASSIVE_SCAN, "PASSIVE-SCAN");
+ PARSE_FLAG(__NL80211_RRF_NO_IBSS, "NO-IBSS");
+ }
printf("\n");
}
- return NL_OK;
+
+ printf("\n");
+ return NL_SKIP;
#undef PARSE_FLAG
}
-static int handle_reg_get(struct nl_cb *cb,
- struct nl_msg *msg,
- int argc, char **argv)
+static int handle_reg_dump(struct nl80211_state *state,
+ struct nl_cb *cb,
+ struct nl_msg *msg,
+ int argc, char **argv,
+ enum id_input id)
{
nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_reg_handler, NULL);
return 0;
}
-COMMAND(reg, get, NULL, NL80211_CMD_GET_REG, 0, CIB_NONE, handle_reg_get);
+
+static int handle_reg_get(struct nl80211_state *state,
+ struct nl_cb *cb,
+ struct nl_msg *msg,
+ int argc, char **argv,
+ enum id_input id)
+{
+ char *dump_args[] = { "reg", "dump" };
+ int err;
+
+ err = handle_cmd(state, CIB_NONE, 2, dump_args);
+ /* dump might fail since it's not supported on older kernels */
+ if (err == -EOPNOTSUPP) {
+ nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_reg_handler,
+ NULL);
+ return 0;
+ }
+
+ return err;
+}
+COMMAND(reg, get, NULL, NL80211_CMD_GET_REG, 0, CIB_NONE, handle_reg_get,
+ "Print out the kernel's current regulatory domain information.");
+COMMAND(reg, get, NULL, NL80211_CMD_GET_REG, 0, CIB_PHY, handle_reg_get,
+ "Print out the devices' current regulatory domain information.");
+HIDDEN(reg, dump, NULL, NL80211_CMD_GET_REG, NLM_F_DUMP, CIB_NONE,
+ handle_reg_dump);