Interworking: Allow cred blocks not to be saved to a file

The new cred block parameter 'temporary' can be used to indicate that a
cred block is not to be saved to wpa_supplicant configuration file
(e.g., "SET_CRED 0 temporary 1"). This is similar to the concept of
temporary network blocks and allows cred blocks to be managed outside
the wpa_supplicant config file when other parameters are still saved to
the file written by wpa_supplicant.

Signed-hostap: Jouni Malinen <j@w1.fi>

diff --git a/wpa_supplicant/README-HS20 b/wpa_supplicant/README-HS20
index 61e4a4d..ad29ef7 100644 (file)
--- a/wpa_supplicant/README-HS20
+++ b/wpa_supplicant/README-HS20
@@ -109,6 +109,8 @@ Credentials can be pre-configured for automatic network selection:
 #
 # credential fields:
 #
+# temporary: Whether this credential is temporary and not to be saved
+#
 # priority: Priority group
 #      By default, all networks and credentials get the same priority group
 #      (0). This field can be used to give higher priority for credentials
@@ -269,6 +271,8 @@ OK
 OK
 > set_cred 0 priority 1
 OK
+> set_cred 0 temporary 1
+OK
 
 Add a SIM credential using a simulated SIM/USIM card for testing:
 

diff --git a/wpa_supplicant/config.c b/wpa_supplicant/config.c
index 9ceaaf8..5301ed7 100644 (file)
--- a/wpa_supplicant/config.c
+++ b/wpa_supplicant/config.c
@@ -2393,6 +2393,11 @@ int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
        char *val;
        size_t len;
 
+       if (os_strcmp(var, "temporary") == 0) {
+               cred->temporary = atoi(value);
+               return 0;
+       }
+
        if (os_strcmp(var, "priority") == 0) {
                cred->priority = atoi(value);
                return 0;

diff --git a/wpa_supplicant/config.h b/wpa_supplicant/config.h
index 068679e..e24772d 100644 (file)
--- a/wpa_supplicant/config.h
+++ b/wpa_supplicant/config.h
@@ -52,6 +52,11 @@ struct wpa_cred {
        int id;
 
        /**
+        * temporary - Whether this credential is temporary and not to be saved
+        */
+       int temporary;
+
+       /**
         * priority - Priority group
         *
         * By default, all networks and credentials get the same priority group

diff --git a/wpa_supplicant/config_file.c b/wpa_supplicant/config_file.c
index 7d32867..6312a77 100644 (file)
--- a/wpa_supplicant/config_file.c
+++ b/wpa_supplicant/config_file.c
@@ -1110,6 +1110,8 @@ int wpa_config_write(const char *name, struct wpa_config *config)
        wpa_config_write_global(f, config);
 
        for (cred = config->cred; cred; cred = cred->next) {
+               if (cred->temporary)
+                       continue;
                fprintf(f, "\ncred={\n");
                wpa_config_write_cred(f, cred);
                fprintf(f, "}\n");

diff --git a/wpa_supplicant/wpa_supplicant.conf b/wpa_supplicant/wpa_supplicant.conf
index 08b720f..9d3bf6d 100644 (file)
--- a/wpa_supplicant/wpa_supplicant.conf
+++ b/wpa_supplicant/wpa_supplicant.conf
@@ -342,6 +342,8 @@ fast_reauth=1
 #
 # credential fields:
 #
+# temporary: Whether this credential is temporary and not to be saved
+#
 # priority: Priority group
 #      By default, all networks and credentials get the same priority group
 #      (0). This field can be used to give higher priority for credentials