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authorLorry <lorry@roadtrain.codethink.co.uk>2012-07-18 20:31:20 +0100
committerLorry <lorry@roadtrain.codethink.co.uk>2012-07-18 20:31:20 +0100
commite43ad1f4ce7f1504e6f01fc8a90d5c0398013383 (patch)
tree03504d9d81336081b899c9f34cc0f66801caf67c /mozilla/security/nss/lib/ssl/ssltrace.c
downloadnss-e43ad1f4ce7f1504e6f01fc8a90d5c0398013383.tar.gz
Tarball conversion
Diffstat (limited to 'mozilla/security/nss/lib/ssl/ssltrace.c')
-rw-r--r--mozilla/security/nss/lib/ssl/ssltrace.c276
1 files changed, 276 insertions, 0 deletions
diff --git a/mozilla/security/nss/lib/ssl/ssltrace.c b/mozilla/security/nss/lib/ssl/ssltrace.c
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+++ b/mozilla/security/nss/lib/ssl/ssltrace.c
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+/*
+ * Functions to trace SSL protocol behavior in DEBUG builds.
+ *
+ * ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public License Version
+ * 1.1 (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is the Netscape security libraries.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1994-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either the GNU General Public License Version 2 or later (the "GPL"), or
+ * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+/* $Id: ssltrace.c,v 1.4 2007/01/31 04:20:26 nelson%bolyard.com Exp $ */
+#include <stdarg.h>
+#include "cert.h"
+#include "ssl.h"
+#include "sslimpl.h"
+#include "sslproto.h"
+#include "prprf.h"
+
+#if defined(DEBUG) || defined(TRACE)
+static const char *hex = "0123456789abcdef";
+
+static const char printable[257] = {
+ "................" /* 0x */
+ "................" /* 1x */
+ " !\"#$%&'()*+,-./" /* 2x */
+ "0123456789:;<=>?" /* 3x */
+ "@ABCDEFGHIJKLMNO" /* 4x */
+ "PQRSTUVWXYZ[\\]^_" /* 5x */
+ "`abcdefghijklmno" /* 6x */
+ "pqrstuvwxyz{|}~." /* 7x */
+ "................" /* 8x */
+ "................" /* 9x */
+ "................" /* ax */
+ "................" /* bx */
+ "................" /* cx */
+ "................" /* dx */
+ "................" /* ex */
+ "................" /* fx */
+};
+
+void ssl_PrintBuf(sslSocket *ss, const char *msg, const void *vp, int len)
+{
+ const unsigned char *cp = (const unsigned char *)vp;
+ char buf[80];
+ char *bp;
+ char *ap;
+
+ if (ss) {
+ SSL_TRACE(("%d: SSL[%d]: %s [Len: %d]", SSL_GETPID(), ss->fd,
+ msg, len));
+ } else {
+ SSL_TRACE(("%d: SSL: %s [Len: %d]", SSL_GETPID(), msg, len));
+ }
+ memset(buf, ' ', sizeof buf);
+ bp = buf;
+ ap = buf + 50;
+ while (--len >= 0) {
+ unsigned char ch = *cp++;
+ *bp++ = hex[(ch >> 4) & 0xf];
+ *bp++ = hex[ch & 0xf];
+ *bp++ = ' ';
+ *ap++ = printable[ch];
+ if (ap - buf >= 66) {
+ *ap = 0;
+ SSL_TRACE((" %s", buf));
+ memset(buf, ' ', sizeof buf);
+ bp = buf;
+ ap = buf + 50;
+ }
+ }
+ if (bp > buf) {
+ *ap = 0;
+ SSL_TRACE((" %s", buf));
+ }
+}
+
+#define LEN(cp) (((cp)[0] << 8) | ((cp)[1]))
+
+static void PrintType(sslSocket *ss, char *msg)
+{
+ if (ss) {
+ SSL_TRACE(("%d: SSL[%d]: dump-msg: %s", SSL_GETPID(), ss->fd,
+ msg));
+ } else {
+ SSL_TRACE(("%d: SSL: dump-msg: %s", SSL_GETPID(), msg));
+ }
+}
+
+static void PrintInt(sslSocket *ss, char *msg, unsigned v)
+{
+ if (ss) {
+ SSL_TRACE(("%d: SSL[%d]: %s=%u", SSL_GETPID(), ss->fd,
+ msg, v));
+ } else {
+ SSL_TRACE(("%d: SSL: %s=%u", SSL_GETPID(), msg, v));
+ }
+}
+
+/* PrintBuf is just like ssl_PrintBuf above, except that:
+ * a) It prefixes each line of the buffer with "XX: SSL[xxx] "
+ * b) It dumps only hex, not ASCII.
+ */
+static void PrintBuf(sslSocket *ss, char *msg, unsigned char *cp, int len)
+{
+ char buf[80];
+ char *bp;
+
+ if (ss) {
+ SSL_TRACE(("%d: SSL[%d]: %s [Len: %d]",
+ SSL_GETPID(), ss->fd, msg, len));
+ } else {
+ SSL_TRACE(("%d: SSL: %s [Len: %d]",
+ SSL_GETPID(), msg, len));
+ }
+ bp = buf;
+ while (--len >= 0) {
+ unsigned char ch = *cp++;
+ *bp++ = hex[(ch >> 4) & 0xf];
+ *bp++ = hex[ch & 0xf];
+ *bp++ = ' ';
+ if (bp + 4 > buf + 50) {
+ *bp = 0;
+ if (ss) {
+ SSL_TRACE(("%d: SSL[%d]: %s",
+ SSL_GETPID(), ss->fd, buf));
+ } else {
+ SSL_TRACE(("%d: SSL: %s", SSL_GETPID(), buf));
+ }
+ bp = buf;
+ }
+ }
+ if (bp > buf) {
+ *bp = 0;
+ if (ss) {
+ SSL_TRACE(("%d: SSL[%d]: %s",
+ SSL_GETPID(), ss->fd, buf));
+ } else {
+ SSL_TRACE(("%d: SSL: %s", SSL_GETPID(), buf));
+ }
+ }
+}
+
+void ssl_DumpMsg(sslSocket *ss, unsigned char *bp, unsigned len)
+{
+ switch (bp[0]) {
+ case SSL_MT_ERROR:
+ PrintType(ss, "Error");
+ PrintInt(ss, "error", LEN(bp+1));
+ break;
+
+ case SSL_MT_CLIENT_HELLO:
+ {
+ unsigned lcs = LEN(bp+3);
+ unsigned ls = LEN(bp+5);
+ unsigned lc = LEN(bp+7);
+
+ PrintType(ss, "Client-Hello");
+
+ PrintInt(ss, "version (Major)", bp[1]);
+ PrintInt(ss, "version (minor)", bp[2]);
+
+ PrintBuf(ss, "cipher-specs", bp+9, lcs);
+ PrintBuf(ss, "session-id", bp+9+lcs, ls);
+ PrintBuf(ss, "challenge", bp+9+lcs+ls, lc);
+ }
+ break;
+ case SSL_MT_CLIENT_MASTER_KEY:
+ {
+ unsigned lck = LEN(bp+4);
+ unsigned lek = LEN(bp+6);
+ unsigned lka = LEN(bp+8);
+
+ PrintType(ss, "Client-Master-Key");
+
+ PrintInt(ss, "cipher-choice", bp[1]);
+ PrintInt(ss, "key-length", LEN(bp+2));
+
+ PrintBuf(ss, "clear-key", bp+10, lck);
+ PrintBuf(ss, "encrypted-key", bp+10+lck, lek);
+ PrintBuf(ss, "key-arg", bp+10+lck+lek, lka);
+ }
+ break;
+ case SSL_MT_CLIENT_FINISHED:
+ PrintType(ss, "Client-Finished");
+ PrintBuf(ss, "connection-id", bp+1, len-1);
+ break;
+ case SSL_MT_SERVER_HELLO:
+ {
+ unsigned lc = LEN(bp+5);
+ unsigned lcs = LEN(bp+7);
+ unsigned lci = LEN(bp+9);
+
+ PrintType(ss, "Server-Hello");
+
+ PrintInt(ss, "session-id-hit", bp[1]);
+ PrintInt(ss, "certificate-type", bp[2]);
+ PrintInt(ss, "version (Major)", bp[3]);
+ PrintInt(ss, "version (minor)", bp[3]);
+ PrintBuf(ss, "certificate", bp+11, lc);
+ PrintBuf(ss, "cipher-specs", bp+11+lc, lcs);
+ PrintBuf(ss, "connection-id", bp+11+lc+lcs, lci);
+ }
+ break;
+ case SSL_MT_SERVER_VERIFY:
+ PrintType(ss, "Server-Verify");
+ PrintBuf(ss, "challenge", bp+1, len-1);
+ break;
+ case SSL_MT_SERVER_FINISHED:
+ PrintType(ss, "Server-Finished");
+ PrintBuf(ss, "session-id", bp+1, len-1);
+ break;
+ case SSL_MT_REQUEST_CERTIFICATE:
+ PrintType(ss, "Request-Certificate");
+ PrintInt(ss, "authentication-type", bp[1]);
+ PrintBuf(ss, "certificate-challenge", bp+2, len-2);
+ break;
+ case SSL_MT_CLIENT_CERTIFICATE:
+ {
+ unsigned lc = LEN(bp+2);
+ unsigned lr = LEN(bp+4);
+ PrintType(ss, "Client-Certificate");
+ PrintInt(ss, "certificate-type", bp[1]);
+ PrintBuf(ss, "certificate", bp+6, lc);
+ PrintBuf(ss, "response", bp+6+lc, lr);
+ }
+ break;
+ default:
+ ssl_PrintBuf(ss, "sending *unknown* message type", bp, len);
+ return;
+ }
+}
+
+void
+ssl_Trace(const char *format, ... )
+{
+ char buf[2000];
+ va_list args;
+
+ if (ssl_trace_iob) {
+ va_start(args, format);
+ PR_vsnprintf(buf, sizeof(buf), format, args);
+ va_end(args);
+
+ fputs(buf, ssl_trace_iob);
+ fputs("\n", ssl_trace_iob);
+ }
+}
+#endif