Add default value for SD

src/common/smf.h

@@ -32,6 +32,8 @@ typedef uint64_t supi64_t;
 
 #define SUPI_DIGITS_MAX 15
 
+const uint32_t SD_NO_VALUE               = 0xFFFFFF;
+const std::string SD_NO_VALUE_STR        = "0xFFFFFF";
 const uint8_t SST_MAX_STANDARDIZED_VALUE = 127;
 
 typedef struct {
@@ -176,8 +178,8 @@ enum class sm_context_status_e {
   SM_CONTEXT_STATUS_RELEASED = 1
 };
 
-static const std::vector<std::string> sm_context_status_e2str = {"ACTIVE",
-                                                                 "RELEASED"};
+static const std::vector<std::string> sm_context_status_e2str = {
+    "ACTIVE", "RELEASED"};
 
 typedef struct qos_profile_gbr_s {
   gfbr_t gfbr;  // Guaranteed Flow Bit Rate

src/smf_app/smf_config.cpp

@@ -802,7 +802,7 @@ int smf_config::load(const string& config_file) {
         session_management_subscription_t sub_item = {};
 
         unsigned int nssai_sst                      = 0;
-        string nssai_sd                             = {};
+        string nssai_sd                             = SD_NO_VALUE_STR;
         string dnn                                  = {};
         string default_session_type                 = {};
         unsigned int default_ssc_mode               = 0;
@@ -1057,10 +1057,21 @@ void smf_config::display() {
     for (auto sub : session_management_subscriptions) {
       Logger::smf_app().info(
           "    Session Management Subscription Data %d:", index);
-      Logger::smf_app().info(
-          "        " SMF_CONFIG_STRING_NSSAI_SST
-          ":  %d, " SMF_CONFIG_STRING_NSSAI_SD " %s",
-          sub.single_nssai.sST, sub.single_nssai.sD.c_str());
+
+      std::string nssai_str = {};
+      nssai_str             = nssai_str.append("        ")
+                      .append(SMF_CONFIG_STRING_NSSAI_SST)
+                      .append(": ")
+                      .append(std::to_string(sub.single_nssai.sST));
+
+      if (!boost::iequals(sub.single_nssai.sD, "0xffffff")) {
+        nssai_str = nssai_str.append(", ")
+                        .append(SMF_CONFIG_STRING_NSSAI_SD)
+                        .append(": ")
+                        .append(sub.single_nssai.sD);
+      }
+
+      Logger::smf_app().info("%s", nssai_str.c_str());
       Logger::smf_app().info(
           "        " SMF_CONFIG_STRING_DNN ": %s", sub.dnn.c_str());
       Logger::smf_app().info(

src/smf_app/smf_context.cpp

@@ -3558,25 +3558,50 @@ bool smf_context::handle_ho_cancellation(
 
   return true;
 }
+
+//------------------------------------------------------------------------------
+void smf_context::get_snssai_key(const snssai_t& snssai, uint32_t& key) {
+  uint32_t sd = SD_NO_VALUE;
+  try {
+    sd = std::stoul(snssai.sD, nullptr, 10);
+  } catch (const std::exception& e) {
+    Logger::smf_app().warn(
+        "Error when converting from string to int for snssai.SD, error: %s",
+        e.what());
+  }
+
+  key = (sd << 8 | snssai.sST);
+}
+
 //------------------------------------------------------------------------------
 void smf_context::insert_dnn_subscription(
     const snssai_t& snssai,
     std::shared_ptr<session_management_subscription>& ss) {
+  // Get a unique key from S-NSSAI
+  uint32_t key = 0;
+  get_snssai_key(snssai, key);
+
   std::unique_lock<std::recursive_mutex> lock(m_context);
 
-  dnn_subscriptions[(uint8_t) snssai.sST] = ss;
+  dnn_subscriptions[key] = ss;
   Logger::smf_app().info(
-      "Inserted DNN Subscription, key: %d", (uint8_t) snssai.sST);
+      "Inserted DNN Subscription, key: %ld (SST %d, SD %s)", key, snssai.sST,
+      snssai.sD.c_str());
 }
 
 //------------------------------------------------------------------------------
 void smf_context::insert_dnn_subscription(
     const snssai_t& snssai, const std::string& dnn,
     std::shared_ptr<session_management_subscription>& ss) {
+  // Get a unique key from S-NSSAI
+  uint32_t key = 0;
+  get_snssai_key(snssai, key);
+
   std::unique_lock<std::recursive_mutex> lock(m_context);
-  if (dnn_subscriptions.count((uint8_t) snssai.sST) > 0) {
+
+  if (dnn_subscriptions.count(key) > 0) {
     std::shared_ptr<session_management_subscription> old_ss =
-        dnn_subscriptions.at((uint8_t) snssai.sST);
+        dnn_subscriptions.at(key);
 
     std::shared_ptr<dnn_configuration_t> dnn_configuration = {};
     ss.get()->find_dnn_configuration(dnn, dnn_configuration);
@@ -3585,20 +3610,24 @@ void smf_context::insert_dnn_subscription(
     }
 
   } else {
-    dnn_subscriptions[(uint8_t) snssai.sST] = ss;
+    dnn_subscriptions[key] = ss;
   }
   Logger::smf_app().info(
-      "Inserted DNN Subscription, key: %d, dnn %s", (uint8_t) snssai.sST,
-      dnn.c_str());
+      "Inserted DNN Subscription, key: %ld (SST %d, SD %s), dnn %s", key,
+      snssai.sST, snssai.sD.c_str(), dnn.c_str());
 }
 
 //------------------------------------------------------------------------------
 bool smf_context::is_dnn_snssai_subscription_data(
     const std::string& dnn, const snssai_t& snssai) {
+  // Get a unique key from S-NSSAI
+  uint32_t key = 0;
+  get_snssai_key(snssai, key);
+
   std::unique_lock<std::recursive_mutex> lock(m_context);
-  if (dnn_subscriptions.count((uint8_t) snssai.sST) > 0) {
+  if (dnn_subscriptions.count(key) > 0) {
     std::shared_ptr<session_management_subscription> ss =
-        dnn_subscriptions.at((uint8_t) snssai.sST);
+        dnn_subscriptions.at(key);
     if (ss.get()->dnn_configuration(dnn))
       return true;
     else
@@ -3611,17 +3640,23 @@ bool smf_context::is_dnn_snssai_subscription_data(
 bool smf_context::find_dnn_subscription(
     const snssai_t& snssai,
     std::shared_ptr<session_management_subscription>& ss) {
+  // Get a unique key from S-NSSAI
+  uint32_t key = 0;
+  get_snssai_key(snssai, key);
+
   Logger::smf_app().info(
-      "Find a DNN Subscription with key: %d, map size %d", (uint8_t) snssai.sST,
-      dnn_subscriptions.size());
+      "Find a DNN Subscription with key: %ld (SST %d, SD %s), map size %d",
+      (uint8_t) snssai.sST, snssai.sD.c_str(), dnn_subscriptions.size());
+
   std::unique_lock<std::recursive_mutex> lock(m_context);
-  if (dnn_subscriptions.count((uint8_t) snssai.sST) > 0) {
-    ss = dnn_subscriptions.at((uint8_t) snssai.sST);
+  if (dnn_subscriptions.count(key) > 0) {
+    ss = dnn_subscriptions.at(key);
     return true;
   }
 
   Logger::smf_app().info(
-      "DNN subscription (SNSSAI %d) not found", (uint8_t) snssai.sST);
+      "DNN subscription (SST %d, SD %s) not found", (uint8_t) snssai.sST,
+      snssai.sD.c_str());
   return false;
 }
 

src/smf_app/smf_context.hpp

@@ -1082,6 +1082,14 @@ class smf_context : public std::enable_shared_from_this<smf_context> {
       const snssai_t& snssai,
       std::shared_ptr<session_management_subscription>& ss);
 
+  /*
+   * Get a unique key from SNSSAI
+   * @param [const snssai_t&] snssai
+   * @param [uint32_t&] key: generated key
+   * @return void
+   */
+  void get_snssai_key(const snssai_t& snssai, uint32_t& key);
+
   /*
    * Convert all members of this class to string for logging
    * @return std::string
@@ -1350,8 +1358,8 @@ class smf_context : public std::enable_shared_from_this<smf_context> {
 
  private:
   std::vector<std::shared_ptr<smf_procedure>> pending_procedures;
-  // snssai-sst <-> session management subscription
-  std::map<uint8_t, std::shared_ptr<session_management_subscription>>
+  // snssai <-> session management subscription
+  std::map<uint32_t, std::shared_ptr<session_management_subscription>>
       dnn_subscriptions;
   std::map<pdu_session_id_t, std::shared_ptr<smf_pdu_session>>
       pdu_sessions;  // Store all PDU Sessions associated with this UE