Add own certificate handling APIS (#2149)

Added certificate handling APIs

Author: Arto Kinnunen

nanostack/net_interface.h

@@ -238,7 +238,9 @@ typedef struct {
 /** Certificate structure. */
 typedef struct {
     const uint8_t *cert;           /**< Certificate pointer. */
+    const uint8_t *key;            /**< Key pointer. */
     uint16_t cert_len;             /**< Certificate length. */
+    uint16_t key_len;              /**< Key length. */
 } arm_certificate_entry_s;
 
 /** Certificate Revocation List structure. */
@@ -921,6 +923,37 @@ extern int8_t arm_network_trusted_certificate_add(const arm_certificate_entry_s
  */
 extern int8_t arm_network_trusted_certificate_remove(const arm_certificate_entry_s *cert);
 
+/**
+ * Remove trusted certificates
+ *
+ * This is used to remove all trusted root or intermediate certificates.
+ *
+ * \return 0 on success, negative on failure.
+ */
+extern int8_t arm_network_trusted_certificates_remove(void);
+
+/**
+ * Add own certificate
+ *
+ * This is used to add own certificate and private key.
+ * In case intermediate certificates are used, function can be called several times. Each call
+ * to the function adds a certificate to own certificate chain.
+ * Certificates are in bottom up order i.e. the top certificate is given last.
+ *
+ * \param cert Certificate.
+ * \return 0 on success, negative on failure.
+ */
+extern int8_t arm_network_own_certificate_add(const arm_certificate_entry_s *cert);
+
+/**
+ * Remove own certificates
+ *
+ * This is used to remove own certificates (chain).
+ *
+ * \return 0 on success, negative on failure.
+ */
+extern int8_t arm_network_own_certificates_remove(void);
+
 /**
  * Add Certificate Revocation List
  *

source/libNET/src/ns_net.c

@@ -964,6 +964,22 @@ int8_t arm_network_trusted_certificate_remove(const arm_certificate_entry_s *cer
 #endif
 }
 
+int8_t arm_network_trusted_certificates_remove(void)
+{
+    return -1;
+}
+
+int8_t arm_network_own_certificate_add(const arm_certificate_entry_s *cert)
+{
+    (void) cert;
+    return -1;
+}
+
+extern int8_t arm_network_own_certificates_remove(void)
+{
+    return -1;
+}
+
 int8_t arm_network_certificate_revocation_list_add(const arm_cert_revocation_list_entry_s *crl)
 {
 #ifdef HAVE_WS