Makefile.in: don't remove configure and config.h.in in make distclean.

[tcpdump] / print-krb.c

diff --git a/print-krb.c b/print-krb.c
index 2b196a5b396dd41ccad8d5377fd94f3033df65b2..5ff121e09e6e6c9899967efad169f3e195c4f882 100644 (file)
--- a/print-krb.c
+++ b/print-krb.c
@@ -21,26 +21,38 @@
  * Initial contribution from John Hawkinson ([email protected]).
  */
 
  * Initial contribution from John Hawkinson ([email protected]).
  */
 

+/* \summary: Kerberos printer */

 
 #ifdef HAVE_CONFIG_H
 
 #ifdef HAVE_CONFIG_H

-#include "config.h"
+#include <config.h>

 #endif
 
 #endif
 

-#include <tcpdump-stdinc.h>
+#include "netdissect-stdinc.h"

 
 

-#include <stdio.h>
-
-#include "interface.h"
-#include "addrtoname.h"
+#include "netdissect.h"

 #include "extract.h"
 
 #include "extract.h"
 

-#ifndef lint
-static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-krb.c,v 1.22 2003-11-15 00:39:29 guy Exp $";
-#endif
-static const u_char *c_print(register const u_char *, register const u_char *);
-static const u_char *krb4_print_hdr(const u_char *);
-static void krb4_print(const u_char *);
+/*
+ * Kerberos 4:
+ *
+ * Athena Technical Plan
+ * Section E.2.1
+ * Kerberos Authentication and Authorization System
+ * by S. P. Miller, B. C. Neuman, J. I. Schiller, and J. H. Saltzer
+ *
+ * https://web.mit.edu/Saltzer/www/publications/athenaplan/e.2.1.pdf
+ *
+ * 7. Appendix I Design Specifications
+ *
+ * Kerberos 5:
+ *
+ * RFC 1510, RFC 2630, etc.
+ */
+
+
+static const u_char *c_print(netdissect_options *, const u_char *, const u_char *);
+static const u_char *krb4_print_hdr(netdissect_options *, const u_char *);
+static void krb4_print(netdissect_options *, const u_char *);

 
 #define AUTH_MSG_KDC_REQUEST                   1<<1
 #define AUTH_MSG_KDC_REPLY                     2<<1
 
 #define AUTH_MSG_KDC_REQUEST                   1<<1
 #define AUTH_MSG_KDC_REPLY                     2<<1


@@ -65,13 +77,11 @@ static void krb4_print(const u_char *);
 #define KERB_ERR_NULL_KEY                      10
 
 struct krb {
 #define KERB_ERR_NULL_KEY                      10
 
 struct krb {

-       u_int8_t pvno;          /* Protocol Version */
-       u_int8_t type;          /* Type+B */
+       nd_uint8_t pvno;        /* Protocol Version */
+       nd_uint8_t type;        /* Type+B */

 };
 
 };
 

-static char tstr[] = " [|kerberos]";
-
-static struct tok type2str[] = {
+static const struct tok type2str[] = {

        { AUTH_MSG_KDC_REQUEST,         "KDC_REQUEST" },
        { AUTH_MSG_KDC_REPLY,           "KDC_REPLY" },
        { AUTH_MSG_APPL_REQUEST,        "APPL_REQUEST" },
        { AUTH_MSG_KDC_REQUEST,         "KDC_REQUEST" },
        { AUTH_MSG_KDC_REPLY,           "KDC_REPLY" },
        { AUTH_MSG_APPL_REQUEST,        "APPL_REQUEST" },


@@ -84,7 +94,7 @@ static struct tok type2str[] = {
        { 0,                            NULL }
 };
 
        { 0,                            NULL }
 };
 

-static struct tok kerr2str[] = {
+static const struct tok kerr2str[] = {

        { KERB_ERR_OK,                  "OK" },
        { KERB_ERR_NAME_EXP,            "NAME_EXP" },
        { KERB_ERR_SERVICE_EXP,         "SERVICE_EXP" },
        { KERB_ERR_OK,                  "OK" },
        { KERB_ERR_NAME_EXP,            "NAME_EXP" },
        { KERB_ERR_SERVICE_EXP,         "SERVICE_EXP" },


@@ -100,28 +110,21 @@ static struct tok kerr2str[] = {
 };
 
 static const u_char *
 };
 
 static const u_char *

-c_print(register const u_char *s, register const u_char *ep)
+c_print(netdissect_options *ndo,
+        const u_char *s, const u_char *ep)

 {
 {

-       register u_char c;
-       register int flag;
+       u_char c;
+       int flag;

 
        flag = 1;
        while (s < ep) {
 
        flag = 1;
        while (s < ep) {

-               c = *s++;
+               c = GET_U_1(s);
+               s++;

                if (c == '\0') {
                        flag = 0;
                        break;
                }
                if (c == '\0') {
                        flag = 0;
                        break;
                }

-               if (!isascii(c)) {
-                       c = toascii(c);
-                       putchar('M');
-                       putchar('-');
-               }
-               if (!isprint(c)) {
-                       c ^= 0x40;      /* DEL to ?, others to alpha */
-                       putchar('^');
-               }
-               putchar(c);
+               fn_print_char(ndo, c);

        }
        if (flag)
                return NULL;
        }
        if (flag)
                return NULL;


@@ -129,133 +132,125 @@ c_print(register const u_char *s, register const u_char *ep)
 }
 
 static const u_char *
 }
 
 static const u_char *

-krb4_print_hdr(const u_char *cp)
+krb4_print_hdr(netdissect_options *ndo,
+               const u_char *cp)

 {
        cp += 2;
 
 {
        cp += 2;
 

-#define PRINT          if ((cp = c_print(cp, snapend)) == NULL) goto trunc
+#define PRINT          if ((cp = c_print(ndo, cp, ndo->ndo_snapend)) == NULL) goto trunc

 
        PRINT;
 
        PRINT;

-       putchar('.');
+       ND_PRINT(".");

        PRINT;
        PRINT;

-       putchar('@');
+       ND_PRINT("@");

        PRINT;
        return (cp);
 
 trunc:
        PRINT;
        return (cp);
 
 trunc:

-       fputs(tstr, stdout);
+       nd_print_trunc(ndo);

        return (NULL);
 
 #undef PRINT
 }
 
 static void
        return (NULL);
 
 #undef PRINT
 }
 
 static void

-krb4_print(const u_char *cp)
+krb4_print(netdissect_options *ndo,
+           const u_char *cp)

 {
 {

-       register const struct krb *kp;
+       const struct krb *kp;

        u_char type;
        u_short len;
 
        u_char type;
        u_short len;
 

-#define PRINT          if ((cp = c_print(cp, snapend)) == NULL) goto trunc
+#define PRINT          if ((cp = c_print(ndo, cp, ndo->ndo_snapend)) == NULL) goto trunc

 /*  True if struct krb is little endian */
 /*  True if struct krb is little endian */

-#define IS_LENDIAN(kp) (((kp)->type & 0x01) != 0)
-#define KTOHSP(kp, cp) (IS_LENDIAN(kp) ? EXTRACT_LE_16BITS(cp) : EXTRACT_16BITS(cp))
+#define IS_LENDIAN(kp) ((GET_U_1((kp)->type) & 0x01) != 0)
+#define KTOHSP(kp, cp) (IS_LENDIAN(kp) ? GET_LE_U_2(cp) : GET_BE_U_2(cp))

 
 

-       kp = (struct krb *)cp;
+       kp = (const struct krb *)cp;

 
 

-       if ((&kp->type) >= snapend) {
-               fputs(tstr, stdout);
-               return;
-       }
-
-       type = kp->type & (0xFF << 1);
+       type = GET_U_1(kp->type) & (0xFF << 1);

 
 

-       printf(" %s %s: ",
+       ND_PRINT(" %s %s: ",

            IS_LENDIAN(kp) ? "le" : "be", tok2str(type2str, NULL, type));
 
        switch (type) {
 
        case AUTH_MSG_KDC_REQUEST:
            IS_LENDIAN(kp) ? "le" : "be", tok2str(type2str, NULL, type));
 
        switch (type) {
 
        case AUTH_MSG_KDC_REQUEST:

-               if ((cp = krb4_print_hdr(cp)) == NULL)
+               if ((cp = krb4_print_hdr(ndo, cp)) == NULL)

                        return;
                cp += 4;        /* ctime */
                        return;
                cp += 4;        /* ctime */

-               TCHECK(*cp);
-               printf(" %dmin ", *cp++ * 5);
+               ND_PRINT(" %umin ", GET_U_1(cp) * 5);
+               cp++;

                PRINT;
                PRINT;

-               putchar('.');
+               ND_PRINT(".");

                PRINT;
                break;
 
        case AUTH_MSG_APPL_REQUEST:
                cp += 2;
                PRINT;
                break;
 
        case AUTH_MSG_APPL_REQUEST:
                cp += 2;

-               TCHECK(*cp);
-               printf("v%d ", *cp++);
+               ND_PRINT("v%u ", GET_U_1(cp));
+               cp++;

                PRINT;
                PRINT;

-               TCHECK(*cp);
-               printf(" (%d)", *cp++);
-               TCHECK(*cp);
-               printf(" (%d)", *cp);
+               ND_PRINT(" (%u)", GET_U_1(cp));
+               cp++;
+               ND_PRINT(" (%u)", GET_U_1(cp));

                break;
 
        case AUTH_MSG_KDC_REPLY:
                break;
 
        case AUTH_MSG_KDC_REPLY:

-               if ((cp = krb4_print_hdr(cp)) == NULL)
+               if ((cp = krb4_print_hdr(ndo, cp)) == NULL)

                        return;
                cp += 10;       /* timestamp + n + exp + kvno */
                        return;
                cp += 10;       /* timestamp + n + exp + kvno */

-               TCHECK2(*cp, sizeof(short));

                len = KTOHSP(kp, cp);
                len = KTOHSP(kp, cp);

-               printf(" (%d)", len);
+               ND_PRINT(" (%u)", len);

                break;
 
        case AUTH_MSG_ERR_REPLY:
                break;
 
        case AUTH_MSG_ERR_REPLY:

-               if ((cp = krb4_print_hdr(cp)) == NULL)
+               if ((cp = krb4_print_hdr(ndo, cp)) == NULL)

                        return;
                cp += 4;          /* timestamp */
                        return;
                cp += 4;          /* timestamp */

-               TCHECK2(*cp, sizeof(short));
-               printf(" %s ", tok2str(kerr2str, NULL, KTOHSP(kp, cp)));
+               ND_PRINT(" %s ", tok2str(kerr2str, NULL, KTOHSP(kp, cp)));

                cp += 4;
                PRINT;
                break;
 
        default:
                cp += 4;
                PRINT;
                break;
 
        default:

-               fputs("(unknown)", stdout);
+               ND_PRINT("(unknown)");

                break;
        }
 
        return;
 trunc:
                break;
        }
 
        return;
 trunc:

-       fputs(tstr, stdout);
+       nd_print_trunc(ndo);

 }
 
 void
 }
 
 void

-krb_print(const u_char *dat)
+krb_print(netdissect_options *ndo,
+          const u_char *dat)

 {
 {

-       register const struct krb *kp;
+       const struct krb *kp;

 
 

-       kp = (struct krb *)dat;
+       ndo->ndo_protocol = "kerberos";
+       nd_print_protocol(ndo);

 
 

-       if (dat >= snapend) {
-               fputs(tstr, stdout);
-               return;
-       }
+       kp = (const struct krb *)dat;

 
 

-       switch (kp->pvno) {
+       switch (GET_U_1(kp->pvno)) {

 
        case 1:
        case 2:
        case 3:
 
        case 1:
        case 2:
        case 3:

-               printf(" v%d", kp->pvno);
+               ND_PRINT(" v%u", GET_U_1(kp->pvno));

                break;
 
        case 4:
                break;
 
        case 4:

-               printf(" v%d", kp->pvno);
-               krb4_print((const u_char *)kp);
+               ND_PRINT(" v%u", GET_U_1(kp->pvno));
+               krb4_print(ndo, (const u_char *)kp);

                break;
 
        case 106:
        case 107:
                break;
 
        case 106:
        case 107:

-               fputs(" v5", stdout);
+               ND_PRINT(" v5");

                /* Decode ASN.1 here "someday" */
                break;
        }
                /* Decode ASN.1 here "someday" */
                break;
        }

-       return;

 }
 }