Code review for SSLKEY patch.

diff --git a/src/backend/libpq/be-secure.c b/src/backend/libpq/be-secure.c
index 1fb648fb8eda7fe428cb7118f1bfc5687e5c1677..2eb68f22551fe58b0086ec77ae82cb144e483af2 100644 (file)
--- a/src/backend/libpq/be-secure.c
+++ b/src/backend/libpq/be-secure.c
@@ -11,7 +11,7 @@
  *
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/libpq/be-secure.c,v 1.78 2007/02/16 02:59:40 momjian Exp $
+ *   $PostgreSQL: pgsql/src/backend/libpq/be-secure.c,v 1.79 2007/02/16 17:06:59 tgl Exp $
  *
  *   Since the server static private key ($DataDir/server.key)
  *   will normally be stored unencrypted so that the database
@@ -95,8 +95,7 @@
 #if SSLEAY_VERSION_NUMBER >= 0x0907000L
 #include <openssl/conf.h>
 #endif
-
-#endif
+#endif /* USE_SSL */
 
 #include "libpq/libpq.h"
 #include "tcop/tcopprot.h"
@@ -130,8 +129,8 @@ static const char *SSLerrmessage(void);
 
 static SSL_CTX *SSL_context = NULL;
 
-/* GUC variable controlling SSL cipher list*/
-extern char *SSLCipherSuites;
+/* GUC variable controlling SSL cipher list */
+char *SSLCipherSuites = NULL;
 
 #endif
 

diff --git a/src/backend/postmaster/postmaster.c b/src/backend/postmaster/postmaster.c
index 0a0a677e6efb607d5eabb520776b085ba7caf48c..05bf39d695266faa7de737b100dbabb318aecb61 100644 (file)
--- a/src/backend/postmaster/postmaster.c
+++ b/src/backend/postmaster/postmaster.c
@@ -37,7 +37,7 @@
  *
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.524 2007/02/16 02:59:41 momjian Exp $
+ *   $PostgreSQL: pgsql/src/backend/postmaster/postmaster.c,v 1.525 2007/02/16 17:06:59 tgl Exp $
  *
  * NOTES
  *
@@ -187,7 +187,6 @@ static int  SendStop = false;
 
 /* still more option variables */
 bool       EnableSSL = false;
-char      *SSLCipherSuites;
 bool       SilentMode = false; /* silent mode (-S) */
 
 int            PreAuthDelay = 0;

diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index b5d93d6d64db53f754e8db32ee0187eb1cbc8700..dd84d65f8908de76c7f124dba88db6d35ec8890c 100644 (file)
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -10,7 +10,7 @@
  * Written by Peter Eisentraut <peter_e@gmx.net>.
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.375 2007/02/16 02:59:41 momjian Exp $
+ *   $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.376 2007/02/16 17:07:00 tgl Exp $
  *
  *--------------------------------------------------------------------
  */
@@ -106,6 +106,11 @@ extern bool fullPageWrites;
 extern bool trace_sort;
 #endif
 
+#ifdef USE_SSL
+extern char *SSLCipherSuites;
+#endif
+
+
 static const char *assign_log_destination(const char *value,
                       bool doit, GucSource source);
 
@@ -2314,6 +2319,7 @@ static struct config_string ConfigureNamesString[] =
        NULL, assign_temp_tablespaces, NULL
    },
 
+#ifdef USE_SSL
    {
        {"ssl_ciphers", PGC_POSTMASTER, CONN_AUTH_SECURITY,
            gettext_noop("Sets the list of allowed SSL ciphers."),
@@ -2323,7 +2329,8 @@ static struct config_string ConfigureNamesString[] =
        &SSLCipherSuites,
        "ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH", NULL, NULL
    },
-           
+#endif /* USE_SSL */
+
    /* End-of-list marker */
    {
        {NULL, 0, 0, NULL, NULL}, NULL, NULL, NULL, NULL

diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
index ca5b2aafb1100401baeb895508af73a276c521a0..703f5cbaa3324b01fae40dd6d8ffa35cf712fc62 100644 (file)
--- a/src/backend/utils/misc/postgresql.conf.sample
+++ b/src/backend/utils/misc/postgresql.conf.sample
@@ -74,7 +74,8 @@
 
 #authentication_timeout = 1min     # 1s-600s
 #ssl = off             # (change requires restart)
-#ssl_ciphers = 'ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH' # List of ciphers to use
+#ssl_ciphers = 'ALL:!ADH:!LOW:!EXP:!MD5:@STRENGTH' # Allowed SSL ciphers
+                   # (change requires restart)
 #password_encryption = on
 #db_user_namespace = off
 

diff --git a/src/include/postmaster/postmaster.h b/src/include/postmaster/postmaster.h
index 811e65af55ba74dbf4715a5fd2f13d9b7c0e82d1..0a963b7a341aa9b5fa337379fc1245d4b34ac842 100644 (file)
--- a/src/include/postmaster/postmaster.h
+++ b/src/include/postmaster/postmaster.h
@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/postmaster/postmaster.h,v 1.16 2007/02/16 02:59:41 momjian Exp $
+ * $PostgreSQL: pgsql/src/include/postmaster/postmaster.h,v 1.17 2007/02/16 17:07:00 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -15,7 +15,6 @@
 
 /* GUC options */
 extern bool EnableSSL;
-extern char *SSLCipherSuites;
 extern bool SilentMode;
 extern int ReservedBackends;
 extern int PostPortNumber;

diff --git a/src/interfaces/libpq/fe-secure.c b/src/interfaces/libpq/fe-secure.c
index f97d4c5334495c994c80342c19415395520ef13d..fce788e36a5bf1ce0ad00d7ca604e3dbd8284a76 100644 (file)
--- a/src/interfaces/libpq/fe-secure.c
+++ b/src/interfaces/libpq/fe-secure.c
@@ -11,7 +11,7 @@
  *
  *
  * IDENTIFICATION
- *   $PostgreSQL: pgsql/src/interfaces/libpq/fe-secure.c,v 1.93 2007/02/16 02:59:41 momjian Exp $
+ *   $PostgreSQL: pgsql/src/interfaces/libpq/fe-secure.c,v 1.94 2007/02/16 17:07:00 tgl Exp $
  *
  * NOTES
  *   [ Most of these notes are wrong/obsolete, but perhaps not all ]
@@ -619,7 +619,7 @@ client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
        char    *engine_env = getenv("PGSSLKEY");
        char    *engine_colon = strchr(engine_env, ':');
        char    *engine_str;
-       ENGINE  *engine_ptr = NULL;
+       ENGINE  *engine_ptr;
 
        if (!engine_colon)
        {
@@ -630,24 +630,28 @@ client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
 
        engine_str = malloc(engine_colon - engine_env + 1);
        strlcpy(engine_str, engine_env, engine_colon - engine_env + 1);
-       if ((engine_ptr = ENGINE_by_id(engine_str)) == NULL)
+       engine_ptr = ENGINE_by_id(engine_str);
+       if (engine_ptr == NULL)
        {
            char      *err = SSLerrmessage();
 
            printfPQExpBuffer(&conn->errorMessage,
-               libpq_gettext("could not load SSL engine \"%s\":%s\n"), engine_str, err);
-           free(engine_str);
+               libpq_gettext("could not load SSL engine \"%s\": %s\n"),
+                             engine_str, err);
            SSLerrfree(err);
+           free(engine_str);
            return 0;
        }   
-       if ((*pkey = ENGINE_load_private_key(engine_ptr,
-                       engine_colon + 1, NULL, NULL)) == NULL)
+
+       *pkey = ENGINE_load_private_key(engine_ptr, engine_colon + 1,
+                                       NULL, NULL);
+       if (*pkey == NULL)
        {
            char      *err = SSLerrmessage();
 
            printfPQExpBuffer(&conn->errorMessage,
-               libpq_gettext("could not read private SSL key %s from engine \"%s\": %s\n"),
-                           engine_colon + 1, engine_str, err);
+               libpq_gettext("could not read private SSL key \"%s\" from engine \"%s\": %s\n"),
+                             engine_colon + 1, engine_str, err);
            SSLerrfree(err);
            free(engine_str);
            return 0;
@@ -655,9 +659,9 @@ client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
        free(engine_str);
    }
    else
-#endif
+#endif /* use PGSSLKEY */
    {
-       /* read the user key from file*/
+       /* read the user key from file */
        snprintf(fnbuf, sizeof(fnbuf), "%s/%s", homedir, USER_KEY_FILE);
        if (stat(fnbuf, &buf) == -1)
        {
@@ -666,7 +670,7 @@ client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
                            fnbuf);
            return 0;
        }
-   #ifndef WIN32
+#ifndef WIN32
        if (!S_ISREG(buf.st_mode) || (buf.st_mode & 0077) ||
            buf.st_uid != geteuid())
        {
@@ -675,7 +679,7 @@ client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
                            fnbuf);
            return 0;
        }
-   #endif
+#endif
        if ((fp = fopen(fnbuf, "r")) == NULL)
        {
            printfPQExpBuffer(&conn->errorMessage,
@@ -683,7 +687,7 @@ client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
                            fnbuf, pqStrerror(errno, sebuf, sizeof(sebuf)));
            return 0;
        }
-   #ifndef WIN32
+#ifndef WIN32
        if (fstat(fileno(fp), &buf2) == -1 ||
            buf.st_dev != buf2.st_dev || buf.st_ino != buf2.st_ino)
        {
@@ -691,7 +695,7 @@ client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
                            libpq_gettext("private key file \"%s\" changed during execution\n"), fnbuf);
            return 0;
        }
-   #endif
+#endif
        if (PEM_read_PrivateKey(fp, pkey, NULL, NULL) == NULL)
        {
            char       *err = SSLerrmessage();
@@ -705,6 +709,7 @@ client_cert_cb(SSL *ssl, X509 **x509, EVP_PKEY **pkey)
        }
        fclose(fp);
    }
+
    /* verify that the cert and key go together */
    if (!X509_check_private_key(*x509, *pkey))
    {
@@ -788,7 +793,7 @@ init_ssl_system(PGconn *conn)
    {
        if (pq_initssllib)
        {
-#if (SSLEAY_VERSION_NUMBER >= 0x00907000L) 
+#if SSLEAY_VERSION_NUMBER >= 0x00907000L
            OPENSSL_config(NULL);
 #endif         
            SSL_library_init();