The stuff in the "linux-include" directory is no longer needed, as we no

[tcpdump] / print-l2tp.c

diff --git a/print-l2tp.c b/print-l2tp.c
index 3b47b1aabee3552bcc8edce097d56cec2c23ebc7..29f1b30e410c60084b55e921fface4beab3abb93 100644 (file)
--- a/print-l2tp.c
+++ b/print-l2tp.c
@@ -18,14 +18,19 @@
  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  *
- * L2TP support contributed by Motonori Shindo (mshindo@ascend.co.jp)
+ * L2TP support contributed by Motonori Shindo (mshindo@mshindo.net)
  */
 
 #ifndef lint
 static const char rcsid[] =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-l2tp.c,v 1.2 1999-10-30 23:45:51 itojun Exp $";
+    "@(#) $Header: /tcpdump/master/tcpdump/print-l2tp.c,v 1.8 2000-08-18 07:44:46 itojun Exp $";
 #endif
 
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
 #include <sys/types.h>
 #include <sys/param.h>
 #include <netinet/in.h>
@@ -44,7 +49,7 @@ static char tstr[] = " [|l2tp]";
 #define FALSE 0
 #endif
 
-static u_char *l2tp_message_type_string[] = {
+static char *l2tp_message_type_string[] = {
        "RESERVED_0",           /* 0  Reserved */
        "SCCRQ",                /* 1  Start-Control-Connection-Request */
        "SCCRP",                /* 2  Start-Control-Connection-Reply */
@@ -151,6 +156,7 @@ static struct l2tp_avp_vec l2tp_avp[] = {
 #define L2TP_MAX_AVP_INDEX     40
 };
 
+#if 0
 static char *l2tp_result_code_StopCCN[] = {
          "Reserved",
          "General request to clear control connection",
@@ -162,7 +168,9 @@ static char *l2tp_result_code_StopCCN[] = {
          "Finite State Machine error"
 #define L2TP_MAX_RESULT_CODE_STOPCC_INDEX      8
 };
+#endif
 
+#if 0
 static char *l2tp_result_code_CDN[] = {
        "Reserved",
        "Call disconnected due to loss of carrier",
@@ -180,7 +188,9 @@ static char *l2tp_result_code_CDN[] = {
        "Call was connected but no appropriate framing was detected"
 #define L2TP_MAX_RESULT_CODE_CDN_INDEX 12
 };
+#endif
 
+#if 0
 static char *l2tp_error_code_general[] = {
        "No general error",
        "No control connection exists yet for this LAC-LNS pair",
@@ -193,6 +203,7 @@ static char *l2tp_error_code_general[] = {
        "Try another"
 #define L2TP_MAX_ERROR_CODE_GENERAL_INDEX      8
 };
+#endif
 
 /******************************/
 /* generic print out routines */
@@ -218,13 +229,13 @@ print_octets(const u_char *dat, u_int length)
 static void
 print_short(const u_short *dat)
 {
-       printf("%d", ntohs(*dat));
+       printf("%u", ntohs(*dat));
 }
 
 static void
 print_int(const u_int *dat)
 {
-       printf("%d", ntohl(*dat));
+       printf("%lu", (u_long)ntohl(*dat));
 }
 
 /**********************************/
@@ -247,11 +258,11 @@ l2tp_result_code_print(const u_char *dat, u_int length)
        u_short *ptr = (u_short *)dat;
        
        if (length == 2) {              /* result code */
-               printf("%d", ntohs(*ptr));      
+               printf("%u", ntohs(*ptr));      
        } else if (length == 4) {       /* result & error code */
-               printf("%d/%d", ntohs(*ptr), ntohs(*(ptr+1)));
+               printf("%u/%u", ntohs(*ptr), ntohs(*(ptr+1)));
        } else if (length > 4) {        /* result & error code & msg */
-               printf("%d/%d %s", ntohs(*ptr), ntohs(*(ptr+1)));
+               printf("%u/%u ", ntohs(*ptr), ntohs(*(ptr+1)));
                print_string((u_char *)(ptr+2), length - 4);
        }
 }
@@ -292,7 +303,7 @@ l2tp_bearer_cap_print(const u_char *dat, u_int length)
 static void
 l2tp_tie_breaker_print(const u_char *dat, u_int length)
 {
-       printf("%lx", *(u_long *)dat);  /* XXX */
+       print_octets(dat, 8);   /* Tie Break Value is 64bits long */
 }
 
 static void
@@ -335,7 +346,7 @@ static void
 l2tp_q931_cc_print(const u_char *dat, u_int length)
 {
        print_short((u_short *)dat);
-       printf(",%02x", dat+2);
+       printf(", %02x", dat[2]);
        if (length > 3) {
                printf(" ");
                print_string(dat+3, length-3);
@@ -498,7 +509,7 @@ l2tp_proxy_auth_id_print(const u_char *dat, u_int length)
 {
        u_short *ptr = (u_short *)dat;
 
-       printf("%d", ntohs(*ptr) & L2TP_PROXY_AUTH_ID_MASK);
+       printf("%u", ntohs(*ptr) & L2TP_PROXY_AUTH_ID_MASK);
 }
 
 static void
@@ -581,23 +592,30 @@ l2tp_avp_print(const u_char *dat, u_int length)
                }
                ptr++;
 
-               if (ntohs(*ptr)) {      /* IETF == 0 */
-                       printf("vendor=%04x", ntohs(*ptr));
-               }
-               ptr++;
-
-               if (ntohs(*ptr) < L2TP_MAX_AVP_INDEX) {
-                       printf("%s", l2tp_avp[ntohs(*ptr)].name);
+               if (ntohs(*ptr)) {
+                       /* Vendor Specific Attribute */
+                       printf("VENDOR%04x:", ntohs(*ptr));
+                       ptr++;
+                       printf("ATTR%04x", ntohs(*ptr));
                        printf("(");
-                       if (!hidden) {
-                               (l2tp_avp[ntohs(*ptr)].print)
-                                       ((u_char *)ptr+2, len-6);
-                       } else {
-                               printf("???");
-                       }
+                       print_octets((u_char *)ptr+2, len-6);
                        printf(")");
                } else {
-                       printf(" invalid AVP %s", ntohs(*ptr));
+                       /* IETF-defined Attribute */ 
+                       ptr++;
+                       if (ntohs(*ptr) < L2TP_MAX_AVP_INDEX) {
+                               printf("%s", l2tp_avp[ntohs(*ptr)].name);
+                               printf("(");
+                               if (!hidden) {
+                                       (l2tp_avp[ntohs(*ptr)].print)
+                                               ((u_char *)ptr+2, len-6);
+                               } else {
+                                       printf("???");
+                               }
+                               printf(")");
+                       } else {
+                               printf(" invalid AVP %u", ntohs(*ptr));
+                       }
                }
 
                l2tp_avp_print(dat + len, length - len);
@@ -671,19 +689,19 @@ l2tp_print(const u_char *dat, u_int length)
                l2tp_len = 0;
        }
 
-       printf("(%d/", ntohs(*ptr++));          /* Tunnel ID */
-       printf("%d)",  ntohs(*ptr++));          /* Session ID */
+       printf("(%u/", ntohs(*ptr++));          /* Tunnel ID */
+       printf("%u)",  ntohs(*ptr++));          /* Session ID */
        cnt += 4;
 
        if (flag_s) {
-               printf("Ns=%d,", ntohs(*ptr++));
-               printf("Nr=%d",  ntohs(*ptr++));
+               printf("Ns=%u,", ntohs(*ptr++));
+               printf("Nr=%u",  ntohs(*ptr++));
                cnt += 4;
        }
 
        if (flag_o) {
                pad =  ntohs(*ptr++);
-               (u_char *)ptr += pad;
+               ptr += pad / sizeof(*ptr);
                cnt += (2 + pad);
        }
 
@@ -694,12 +712,8 @@ l2tp_print(const u_char *dat, u_int length)
                        l2tp_avp_print((u_char *)ptr, length - cnt);
                }
        } else {
-#if 0
                printf(" {");
-               ppp_hdlc_print((u_char *)ptr, length - cnt);
+               ppp_print((u_char *)ptr, length - cnt);
                printf("}");
-#else
-               printf("[hdlc|]");
-#endif
        }
 }