Linux: enable building with a local version of libssl.

net/third_party/nss/ssl/ssltrace.c

+/*
+ * 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