vty: Add command to set auth algo & Ki for a subscriber
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/openbsc/src/vty_interface_layer3.c b/openbsc/src/vty_interface_layer3.c
index e3d9260..bc2bfaa 100644
--- a/openbsc/src/vty_interface_layer3.c
+++ b/openbsc/src/vty_interface_layer3.c
@@ -74,6 +74,33 @@
return b;
}
+static int hexparse(const char *str, u_int8_t *b, int max_len)
+
+{
+ int i, l, v;
+
+ l = strlen(str);
+ if ((l&1) || ((l>>1) > max_len))
+ return -1;
+
+ memset(b, 0x00, max_len);
+
+ for (i=0; i<l; i++) {
+ char c = str[i];
+ if (c >= '0' && c <= '9')
+ v = c - '0';
+ else if (c >= 'a' && c <= 'f')
+ v = 10 + (c - 'a');
+ else if (c >= 'A' && c <= 'F')
+ v = 10 + (c - 'a');
+ else
+ return -1;
+ b[i>>1] |= v << (i&1 ? 0 : 4);
+ }
+
+ return i>>1;
+}
+
/* per-subscriber configuration */
DEFUN(cfg_subscr,
cfg_subscr_cmd,
@@ -375,6 +402,40 @@
return CMD_SUCCESS;
}
+#define A3A8_ALG_TYPES "(none|comp128v1)"
+
+DEFUN(cfg_subscr_a3a8,
+ cfg_subscr_a3a8_cmd,
+ "a3a8 " A3A8_ALG_TYPES " [KI]",
+ "Set a3a8 parameters for the subscriber")
+{
+ struct gsm_subscriber *subscr = vty->index;
+ const char *alg_str = argv[0];
+ const char *ki_str = argv[1];
+ struct gsm_auth_info ainfo;
+ int rc;
+
+ if (!strcasecmp(alg_str, "none")) {
+ /* Just erase */
+ rc = set_authinfo_for_subscr(NULL, subscr);
+ } else if (!strcasecmp(alg_str, "comp128v1")) {
+ /* Parse hex string Ki */
+ rc = hexparse(ki_str, ainfo.a3a8_ki, sizeof(ainfo.a3a8_ki));
+ if (rc != 16)
+ return CMD_WARNING;
+
+ /* Set the infos */
+ ainfo.auth_algo = AUTH_ALGO_COMP128v1;
+ ainfo.a3a8_ki_len = rc;
+ rc = set_authinfo_for_subscr(&ainfo, subscr);
+ } else {
+ /* Unknown method */
+ return CMD_WARNING;
+ }
+
+ return rc ? CMD_WARNING : CMD_SUCCESS;
+}
+
static int scall_cbfn(unsigned int subsys, unsigned int signal,
void *handler_data, void *signal_data)
{
@@ -417,6 +478,7 @@
install_element(SUBSCR_NODE, &cfg_subscr_name_cmd);
install_element(SUBSCR_NODE, &cfg_subscr_extension_cmd);
install_element(SUBSCR_NODE, &cfg_subscr_authorized_cmd);
+ install_element(SUBSCR_NODE, &cfg_subscr_a3a8_cmd);
return 0;
}