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Fix spaces
[tcpdump] / print-eap.c
diff --git a/print-eap.c b/print-eap.c
index fba40e2721fcd910262669a51d519e6f5bced96f..797224d645fbdfcd3101c1586f756727bc01d706 100644 (file)
--- a/print-eap.c
+++ b/print-eap.c
@@ -16,24 +16,18 @@
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Format and print EAP packets.
- *
  */
 
  */
 
+/* \summary: Extensible Authentication Protocol (EAP) printer */
+
 #ifdef HAVE_CONFIG_H
 #ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
 #endif
 
 #endif
 
-#include <tcpdump-stdinc.h>
-
-#include <stdio.h>
-#include <string.h>
+#include "netdissect-stdinc.h"
 
 #include "netdissect.h"
 
 #include "netdissect.h"
-#include "interface.h"
 #include "extract.h"
 #include "extract.h"
-#include "ether.h"
 
 #define        EAP_FRAME_TYPE_PACKET           0
 #define        EAP_FRAME_TYPE_START            1
 
 #define        EAP_FRAME_TYPE_PACKET           0
 #define        EAP_FRAME_TYPE_START            1
@@ -42,9 +36,9 @@
 #define        EAP_FRAME_TYPE_ENCAP_ASF_ALERT  4
 
 struct eap_frame_t {
 #define        EAP_FRAME_TYPE_ENCAP_ASF_ALERT  4
 
 struct eap_frame_t {
-    unsigned char   version;
-    unsigned char   type;
-    unsigned char   length[2];
+    nd_uint8_t  version;
+    nd_uint8_t  type;
+    nd_uint16_t length;
 };
 
 static const struct tok eap_frame_type_values[] = {
 };
 
 static const struct tok eap_frame_type_values[] = {
@@ -58,9 +52,9 @@ static const struct tok eap_frame_type_values[] = {
 
 /* RFC 3748 */
 struct eap_packet_t {
 
 /* RFC 3748 */
 struct eap_packet_t {
-    unsigned char      code;
-    unsigned char      id;
-    unsigned char      length[2];
+    nd_uint8_t  code;
+    nd_uint8_t  id;
+    nd_uint16_t length;
 };
 
 #define                EAP_REQUEST     1
 };
 
 #define                EAP_REQUEST     1
@@ -153,70 +147,74 @@ static const struct tok eap_aka_subtype_values[] = {
  * Print EAP requests / responses
  */
 void
  * Print EAP requests / responses
  */
 void
-eap_print(netdissect_options *ndo _U_,
-          register const u_char *cp,
-          u_int length _U_)
+eap_print(netdissect_options *ndo,
+          const u_char *cp,
+          u_int length)
 {
     const struct eap_frame_t *eap;
     const u_char *tptr;
 {
     const struct eap_frame_t *eap;
     const u_char *tptr;
-    u_int tlen, type, subtype;
+    u_int eap_type, tlen, type, subtype;
     int count=0, len;
 
     int count=0, len;
 
+    ndo->ndo_protocol = "eap";
     tptr = cp;
     tlen = length;
     eap = (const struct eap_frame_t *)cp;
     tptr = cp;
     tlen = length;
     eap = (const struct eap_frame_t *)cp;
-    TCHECK(*eap);
+    ND_TCHECK_SIZE(eap);
+    eap_type = EXTRACT_U_1(eap->type);
 
     /* in non-verbose mode just lets print the basic info */
 
     /* in non-verbose mode just lets print the basic info */
-    if (vflag < 1) {
-       printf("%s (%u) v%u, len %u",
-               tok2str(eap_frame_type_values, "unknown", eap->type),
-               eap->type,
-               eap->version,
-               EXTRACT_16BITS(eap->length));
+    if (ndo->ndo_vflag < 1) {
+       ND_PRINT("%s (%u) v%u, len %u",
+               tok2str(eap_frame_type_values, "unknown", eap_type),
+               eap_type,
+               EXTRACT_U_1(eap->version),
+               EXTRACT_BE_U_2(eap->length));
        return;
     }
 
        return;
     }
 
-    printf("%s (%u) v%u, len %u",
-           tok2str(eap_frame_type_values, "unknown", eap->type),
-           eap->type,
-           eap->version,
-           EXTRACT_16BITS(eap->length));
+    ND_PRINT("%s (%u) v%u, len %u",
+           tok2str(eap_frame_type_values, "unknown", eap_type),
+           eap_type,
+           EXTRACT_U_1(eap->version),
+           EXTRACT_BE_U_2(eap->length));
 
 
-    tptr += sizeof(const struct eap_frame_t);
-    tlen -= sizeof(const struct eap_frame_t);
+    tptr += sizeof(struct eap_frame_t);
+    tlen -= sizeof(struct eap_frame_t);
 
 
-    switch (eap->type) {
+    switch (eap_type) {
     case EAP_FRAME_TYPE_PACKET:
     case EAP_FRAME_TYPE_PACKET:
-        type = *(tptr);
-        len = EXTRACT_16BITS(tptr+2);
-        printf(", %s (%u), id %u, len %u",
+        ND_TCHECK_1(tptr);
+        type = EXTRACT_U_1(tptr);
+        ND_TCHECK_2(tptr + 2);
+        len = EXTRACT_BE_U_2(tptr + 2);
+        ND_PRINT(", %s (%u), id %u, len %u",
                tok2str(eap_code_values, "unknown", type),
                type,
                tok2str(eap_code_values, "unknown", type),
                type,
-               *(tptr+1),
+               EXTRACT_U_1((tptr + 1)),
                len);
 
                len);
 
-        if (!TTEST2(*tptr, len))
-            goto trunc;
+        ND_TCHECK_LEN(tptr, len);
 
         if (type <= 2) { /* For EAP_REQUEST and EAP_RESPONSE only */
 
         if (type <= 2) { /* For EAP_REQUEST and EAP_RESPONSE only */
-            subtype = *(tptr+4);
-            printf("\n\t\t Type %s (%u)",
-                   tok2str(eap_type_values, "unknown", *(tptr+4)),
-                   *(tptr+4));
+            ND_TCHECK_1(tptr + 4);
+            subtype = EXTRACT_U_1(tptr + 4);
+            ND_PRINT("\n\t\t Type %s (%u)",
+                   tok2str(eap_type_values, "unknown", subtype),
+                   subtype);
 
             switch (subtype) {
             case EAP_TYPE_IDENTITY:
                 if (len - 5 > 0) {
 
             switch (subtype) {
             case EAP_TYPE_IDENTITY:
                 if (len - 5 > 0) {
-                    printf(", Identity: ");
-                    safeputs(gndo, tptr + 5, len - 5);
+                    ND_PRINT(", Identity: ");
+                    (void)nd_printzp(ndo, tptr + 5, len - 5, NULL);
                 }
                 break;
 
             case EAP_TYPE_NOTIFICATION:
                 if (len - 5 > 0) {
                 }
                 break;
 
             case EAP_TYPE_NOTIFICATION:
                 if (len - 5 > 0) {
-                    printf(", Notification: ");
-                    safeputs(gndo, tptr + 5, len - 5);
+                    ND_PRINT(", Notification: ");
+                    (void)nd_printzp(ndo, tptr + 5, len - 5, NULL);
                 }
                 break;
 
                 }
                 break;
 
@@ -229,35 +227,41 @@ eap_print(netdissect_options *ndo _U_,
                  * type one octet per type
                  */
                 while (count < len) {
                  * type one octet per type
                  */
                 while (count < len) {
-                    printf(" %s (%u),",
-                           tok2str(eap_type_values, "unknown", *(tptr+count)),
-                           *(tptr+count));
+                    ND_TCHECK_1(tptr + count);
+                    ND_PRINT(" %s (%u),",
+                           tok2str(eap_type_values, "unknown", EXTRACT_U_1((tptr + count))),
+                           EXTRACT_U_1(tptr + count));
                     count++;
                 }
                 break;
 
             case EAP_TYPE_TTLS:
                     count++;
                 }
                 break;
 
             case EAP_TYPE_TTLS:
-                printf(" TTLSv%u",
-                       EAP_TTLS_VERSION(*(tptr+5))); /* fall through */
             case EAP_TYPE_TLS:
             case EAP_TYPE_TLS:
-                printf(" flags [%s] 0x%02x,",
-                       bittok2str(eap_tls_flags_values, "none", *(tptr+5)),
-                       *(tptr+5));
-
-                if (EAP_TLS_EXTRACT_BIT_L(*(tptr+5))) {
-                   printf(" len %u", EXTRACT_32BITS(tptr+6));
+                ND_TCHECK_1(tptr + 5);
+                if (subtype == EAP_TYPE_TTLS)
+                    ND_PRINT(" TTLSv%u",
+                           EAP_TTLS_VERSION(EXTRACT_U_1((tptr + 5))));
+                ND_PRINT(" flags [%s] 0x%02x,",
+                       bittok2str(eap_tls_flags_values, "none", EXTRACT_U_1((tptr + 5))),
+                       EXTRACT_U_1(tptr + 5));
+
+                if (EAP_TLS_EXTRACT_BIT_L(EXTRACT_U_1(tptr + 5))) {
+                    ND_TCHECK_4(tptr + 6);
+                   ND_PRINT(" len %u", EXTRACT_BE_U_4(tptr + 6));
                 }
                 break;
 
             case EAP_TYPE_FAST:
                 }
                 break;
 
             case EAP_TYPE_FAST:
-                printf(" FASTv%u",
-                       EAP_TTLS_VERSION(*(tptr+5)));
-                printf(" flags [%s] 0x%02x,",
-                       bittok2str(eap_tls_flags_values, "none", *(tptr+5)),
-                       *(tptr+5));
-
-                if (EAP_TLS_EXTRACT_BIT_L(*(tptr+5))) {
-                    printf(" len %u", EXTRACT_32BITS(tptr+6));
+                ND_TCHECK_1(tptr + 5);
+                ND_PRINT(" FASTv%u",
+                       EAP_TTLS_VERSION(EXTRACT_U_1((tptr + 5))));
+                ND_PRINT(" flags [%s] 0x%02x,",
+                       bittok2str(eap_tls_flags_values, "none", EXTRACT_U_1((tptr + 5))),
+                       EXTRACT_U_1(tptr + 5));
+
+                if (EAP_TLS_EXTRACT_BIT_L(EXTRACT_U_1(tptr + 5))) {
+                    ND_TCHECK_4(tptr + 6);
+                    ND_PRINT(" len %u", EXTRACT_BE_U_4(tptr + 6));
                 }
 
                 /* FIXME - TLV attributes follow */
                 }
 
                 /* FIXME - TLV attributes follow */
@@ -265,9 +269,10 @@ eap_print(netdissect_options *ndo _U_,
 
             case EAP_TYPE_AKA:
             case EAP_TYPE_SIM:
 
             case EAP_TYPE_AKA:
             case EAP_TYPE_SIM:
-                printf(" subtype [%s] 0x%02x,",
-                       tok2str(eap_aka_subtype_values, "unknown", *(tptr+5)),
-                       *(tptr+5));
+                ND_TCHECK_1(tptr + 5);
+                ND_PRINT(" subtype [%s] 0x%02x,",
+                       tok2str(eap_aka_subtype_values, "unknown", EXTRACT_U_1((tptr + 5))),
+                       EXTRACT_U_1(tptr + 5));
 
                 /* FIXME - TLV attributes follow */
                 break;
 
                 /* FIXME - TLV attributes follow */
                 break;
@@ -291,11 +296,5 @@ eap_print(netdissect_options *ndo _U_,
     return;
 
  trunc:
     return;
 
  trunc:
-    printf("\n\t[|EAP]");
+    nd_print_trunc(ndo);
 }
 }
-
-/*
- * Local Variables:
- * c-basic-offset: 4
- * End:
- */
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