From Minto Jeyananth <[email protected]>: add support for IS-IS Generic Cryptographic...

[tcpdump] / print-isoclns.c

diff --git a/print-isoclns.c b/print-isoclns.c
index b56fe6d1ad366ee4861fc59d9aed2d5380cdc1a3..7e2bba70a4024af63c92a97c60a218c934c7d8b0 100644 (file)
--- a/print-isoclns.c
+++ b/print-isoclns.c
@@ -393,12 +393,14 @@ static struct tok isis_subtlv_link_attribute_values[] = {
 };
 
 #define ISIS_SUBTLV_AUTH_SIMPLE        1
+#define ISIS_SUBTLV_AUTH_GENERIC       3 /* rfc 5310 */
 #define ISIS_SUBTLV_AUTH_MD5          54
 #define ISIS_SUBTLV_AUTH_MD5_LEN      16
 #define ISIS_SUBTLV_AUTH_PRIVATE     255
 
 static struct tok isis_subtlv_auth_values[] = {
     { ISIS_SUBTLV_AUTH_SIMPLE, "simple text password"},
+    { ISIS_SUBTLV_AUTH_GENERIC, "Generic Crypto key-id"},
     { ISIS_SUBTLV_AUTH_MD5,    "HMAC-MD5 password"},
     { ISIS_SUBTLV_AUTH_PRIVATE,        "Routing Domain private password"},
     { 0, NULL }
@@ -1777,7 +1779,7 @@ static int isis_print (const u_int8_t *p, u_int length)
     u_int8_t pdu_type, max_area, id_length, tlv_type, tlv_len, tmp, alen, lan_alen, prefix_len;
     u_int8_t ext_is_len, ext_ip_len, mt_len;
     const u_int8_t *optr, *pptr, *tptr;
-    u_short packet_len,pdu_len;
+    u_short packet_len,pdu_len, key_id;
     u_int i,vendor_id;
     int sigcheck;
 
@@ -2376,6 +2378,15 @@ static int isis_print (const u_int8_t *p, u_int length)
                 printf(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck));
 
                break;
+            case ISIS_SUBTLV_AUTH_GENERIC:
+                key_id = EXTRACT_16BITS((tptr+1));
+                printf("%u, password: ", key_id); 
+                for(i=1 + sizeof(u_int16_t);i<tlv_len;i++) {
+                    if (!TTEST2(*(tptr+i), 1))
+                        goto trunctlv;
+                    printf("%02x",*(tptr+i));
+                }
+                break;
            case ISIS_SUBTLV_AUTH_PRIVATE:
            default:
                if(!print_unknown_data(tptr+1,"\n\t\t  ",tlv_len-1))