From 4eb1523d87e4ed1bcc5b1ec64da0b53ce2264000 Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vl@samba.org>
Date: Sun, 24 Jan 2010 19:24:10 +0100
Subject: [PATCH] s3-libsmbclient: Add smbc_setOptionUseCCache()

Can we enable this by default? This would be a change in behaviour, but this
feature is just too cool for everyone to catch up in the apps.

The patch would be
---
 source3/include/libsmbclient.h  | 11 +++++++++++
 source3/libsmb/libsmb_context.c | 14 ++++++++++++++
 source3/libsmb/libsmb_server.c  |  7 +++++++
 source3/libsmb/libsmb_setget.c  | 18 ++++++++++++++++++
 4 files changed, 50 insertions(+)

diff --git a/source3/include/libsmbclient.h b/source3/include/libsmbclient.h
index 7de5000615e..dd6f93e261e 100644
--- a/source3/include/libsmbclient.h
+++ b/source3/include/libsmbclient.h
@@ -263,10 +263,13 @@ typedef struct _SMBCCTX SMBCCTX;
  *   smbc_getOptionFallbackAFterKerberos()
  *   smbc_setOptionNoAutoAnonymousLogin()
  *   smbc_getOptionNoAutoAnonymousLogin()
+ *   smbc_setOptionUseCCache()
+ *   smbc_getOptionUseCCache()
  */
 # define SMB_CTX_FLAG_USE_KERBEROS (1 << 0)
 # define SMB_CTX_FLAG_FALLBACK_AFTER_KERBEROS (1 << 1)
 # define SMBCCTX_FLAG_NO_AUTO_ANONYMOUS_LOGON (1 << 2)
+# define SMB_CTX_FLAG_USE_CCACHE (1 << 3)
 
 
 
@@ -732,6 +735,14 @@ smbc_getOptionNoAutoAnonymousLogin(SMBCCTX *c);
 void
 smbc_setOptionNoAutoAnonymousLogin(SMBCCTX *c, smbc_bool b);
 
+/** Get whether to enable use of the winbind ccache */
+smbc_bool
+smbc_getOptionUseCCache(SMBCCTX *c);
+
+/** Set whether to enable use of the winbind ccache */
+void
+smbc_setOptionUseCCache(SMBCCTX *c, smbc_bool b);
+
 
 
 /*************************************
diff --git a/source3/libsmb/libsmb_context.c b/source3/libsmb/libsmb_context.c
index 336172ce6fb..2e56911f70f 100644
--- a/source3/libsmb/libsmb_context.c
+++ b/source3/libsmb/libsmb_context.c
@@ -168,6 +168,7 @@ smbc_new_context(void)
         smbc_setOptionFullTimeNames(context, False);
         smbc_setOptionOpenShareMode(context, SMBC_SHAREMODE_DENY_NONE);
         smbc_setOptionSmbEncryptionLevel(context, SMBC_ENCRYPTLEVEL_NONE);
+        smbc_setOptionUseCCache(context, True);
         smbc_setOptionCaseSensitive(context, False);
         smbc_setOptionBrowseMaxLmbCount(context, 3);    /* # LMBs to query */
         smbc_setOptionUrlEncodeReaddirEntries(context, False);
@@ -399,6 +400,10 @@ smbc_option_set(SMBCCTX *context,
                 option_value.b = (bool) va_arg(ap, int);
                 smbc_setOptionFallbackAfterKerberos(context, option_value.b);
                 
+        } else if (strcmp(option_name, "use_ccache") == 0) {
+                option_value.b = (bool) va_arg(ap, int);
+                smbc_setOptionUseCCache(context, option_value.b);
+
         } else if (strcmp(option_name, "no_auto_anonymous_login") == 0) {
                 option_value.b = (bool) va_arg(ap, int);
                 smbc_setOptionNoAutoAnonymousLogin(context, option_value.b);
@@ -505,6 +510,13 @@ smbc_option_get(SMBCCTX *context,
                 return (void *) (bool) smbc_getOptionFallbackAfterKerberos(context);
 #endif
                 
+        } else if (strcmp(option_name, "use_ccache") == 0) {
+#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
+                return (void *) (intptr_t) smbc_getOptionUseCCache(context);
+#else
+                return (void *) (bool) smbc_getOptionUseCCache(context);
+#endif
+
         } else if (strcmp(option_name, "no_auto_anonymous_login") == 0) {
 #if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
                 return (void *) (intptr_t) smbc_getOptionNoAutoAnonymousLogin(context);
@@ -748,6 +760,8 @@ void smbc_set_credentials_with_fallback(SMBCCTX *context,
         set_cmdline_auth_info_signing_state(auth_info, signing_state);
 	set_cmdline_auth_info_fallback_after_kerberos(auth_info,
 		smbc_getOptionFallbackAfterKerberos(context));
+	set_cmdline_auth_info_use_ccache(
+		auth_info, smbc_getOptionUseCCache(context));
         set_global_myworkgroup(workgroup);
 
 	TALLOC_FREE(context->internal->auth_info);
diff --git a/source3/libsmb/libsmb_server.c b/source3/libsmb/libsmb_server.c
index 71cb67c61ba..eb292da2ce6 100644
--- a/source3/libsmb/libsmb_server.c
+++ b/source3/libsmb/libsmb_server.c
@@ -413,6 +413,10 @@ again:
 		c->fallback_after_kerberos = True;
 	}
 
+        if (smbc_getOptionUseCCache(context)) {
+		c->use_ccache = True;
+	}
+
 	c->timeout = smbc_getTimeout(context);
 
         /*
@@ -759,6 +763,9 @@ SMBC_attr_server(TALLOC_CTX *ctx,
                 if (smbc_getOptionUseKerberos(context)) {
                         flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
                 }
+                if (smbc_getOptionUseCCache(context)) {
+                        flags |= CLI_FULL_CONNECTION_USE_CCACHE;
+                }
 
                 zero_sockaddr(&ss);
                 nt_status = cli_full_connection(&ipc_cli,
diff --git a/source3/libsmb/libsmb_setget.c b/source3/libsmb/libsmb_setget.c
index 791b4cd9e46..20835781ec0 100644
--- a/source3/libsmb/libsmb_setget.c
+++ b/source3/libsmb/libsmb_setget.c
@@ -420,6 +420,24 @@ smbc_setOptionNoAutoAnonymousLogin(SMBCCTX *c, smbc_bool b)
         }
 }
 
+/** Get whether to enable use of kerberos */
+smbc_bool
+smbc_getOptionUseCCache(SMBCCTX *c)
+{
+        return c->flags & SMB_CTX_FLAG_USE_CCACHE ? True : False;
+}
+
+/** Set whether to enable use of kerberos */
+void
+smbc_setOptionUseCCache(SMBCCTX *c, smbc_bool b)
+{
+        if (b) {
+                c->flags |= SMB_CTX_FLAG_USE_CCACHE;
+        } else {
+                c->flags &= ~SMB_CTX_FLAG_USE_CCACHE;
+        }
+}
+
 /** Get the function for obtaining authentication data */
 smbc_get_auth_data_fn
 smbc_getFunctionAuthData(SMBCCTX *c)
-- 
2.34.1