iwinfo: fix handling of accessing nl80211 interfaces via radio*

[openwrt.git] / package / network / utils / iwinfo / src / iwinfo_utils.c

diff --git a/package/network/utils/iwinfo/src/iwinfo_utils.c b/package/network/utils/iwinfo/src/iwinfo_utils.c
index 4a82433..b313ea2 100644 (file)
--- a/package/network/utils/iwinfo/src/iwinfo_utils.c
+++ b/package/network/utils/iwinfo/src/iwinfo_utils.c
@@ -24,6 +24,7 @@
 
 
 static int ioctl_socket = -1;
+struct uci_context *uci_ctx = NULL;
 
 static int iwinfo_ioctl_socket(void)
 {
@@ -365,3 +366,43 @@ void iwinfo_parse_rsn(struct iwinfo_crypto_entry *c, uint8_t *data, uint8_t len,
        data += 2 + (count * 4);
        len -= 2 + (count * 4);
 }
+
+struct uci_section *iwinfo_uci_get_radio(const char *name, const char *type)
+{
+       struct uci_ptr ptr = {
+               .package = "wireless",
+               .section = name,
+       };
+       const char *opt;
+
+       if (!uci_ctx) {
+               uci_ctx = uci_alloc_context();
+               if (!uci_ctx)
+                       return NULL;
+       }
+
+       memset(&ptr, 0, sizeof(ptr));
+       ptr.package = "wireless";
+       ptr.section = name;
+
+       if (uci_lookup_ptr(uci_ctx, &ptr, NULL, false))
+               return NULL;
+
+       if (!ptr.s || strcmp(ptr.s->type, "wifi-device") != 0)
+               return NULL;
+
+       opt = uci_lookup_option_string(uci_ctx, ptr.s, "type");
+       if (!opt || strcmp(opt, type) != 0)
+               return NULL;
+
+       return ptr.s;
+}
+
+void iwinfo_uci_free(void)
+{
+       if (!uci_ctx)
+               return;
+
+       uci_free_context(uci_ctx);
+       uci_ctx = NULL;
+}