iw: support multiple regdom print
authorArik Nemtsov <arik@wizery.com>
Mon, 15 Dec 2014 16:44:23 +0000 (18:44 +0200)
committerJohannes Berg <johannes.berg@intel.com>
Wed, 17 Dec 2014 14:16:34 +0000 (15:16 +0100)
When a phy is given, print only its regdomain. Otherwise, use the newly
implement dump functionality to print all regdomains in the system.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
reg.c

diff --git a/reg.c b/reg.c
index a02c982..0aef7ba 100644 (file)
--- a/reg.c
+++ b/reg.c
@@ -114,7 +114,6 @@ COMMAND(reg, set, "<ISO/IEC 3166-1 alpha2>",
        "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)) { \
@@ -150,6 +149,13 @@ static int print_reg_handler(struct nl_msg *msg, void *arg)
                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
@@ -216,18 +222,44 @@ static int print_reg_handler(struct nl_msg *msg, void *arg)
 
                printf("\n");
        }
-       return NL_OK;
+
+       printf("\n");
+       return NL_SKIP;
 #undef PARSE_FLAG
 }
 
+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;
+}
+
 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)
 {
-       nl_cb_set(cb, NL_CB_VALID, NL_CB_CUSTOM, print_reg_handler, NULL);
-       return 0;
+       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);