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authorStefan Metzmacher <metze@samba.org>2016-06-22 16:58:03 +0200
committerKarolin Seeger <kseeger@samba.org>2016-07-04 09:09:51 +0200
commit65096890c7b2c4f8a28ac7548f253f04286f84f4 (patch)
tree294562d0976d8e79c19391d6701bc8e08b977950
parent9c6e91338b55d4d294edf695fe13186a4bca8996 (diff)
downloadsamba-65096890c7b2c4f8a28ac7548f253f04286f84f4.tar.gz
dcerpc.idl: add DCERPC_NCACN_{REQUEST,RESPONSE}_DEFAULT_MAX_SIZE
This will replace DCERPC_NCACN_PAYLOAD_MAX_SIZE (4 MByte), this limit is too strict for some workloads, e.g. DRSUAPI replication with large objects. BUG: https://bugzilla.samba.org/show_bug.cgi?id=11948 Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Andrew Bartlett <abartlet@samba.org> (cherry picked from commit 281e11b53f676647997fb9ce21227782529a62ad)
-rw-r--r--librpc/idl/dcerpc.idl17
1 files changed, 17 insertions, 0 deletions
diff --git a/librpc/idl/dcerpc.idl b/librpc/idl/dcerpc.idl
index 015eb3d1815..5e0f9193d08 100644
--- a/librpc/idl/dcerpc.idl
+++ b/librpc/idl/dcerpc.idl
@@ -537,6 +537,23 @@ interface dcerpc
const uint8 DCERPC_NCACN_PAYLOAD_OFFSET = 16;
const uint32 DCERPC_NCACN_PAYLOAD_MAX_SIZE = 0x400000; /* 4 MByte */
+ /*
+ * See [MS-RPCE] 3.3.3.5.4 Maximum Server Input Data Size
+ * 4 MByte is the default limit of reassembled request payload
+ */
+ const uint32 DCERPC_NCACN_REQUEST_DEFAULT_MAX_SIZE = 0x400000;
+
+ /*
+ * See [MS-RPCE] 3.3.2.5.2 Handling Responses
+ *
+ * Indicates that Windows accepts up to 0x7FFFFFFF ~2 GByte
+ *
+ * talloc has a limit of 256 MByte, so we need to use something smaller.
+ *
+ * For now we try our luck with 240 MByte.
+ */
+ const uint32 DCERPC_NCACN_RESPONSE_DEFAULT_MAX_SIZE = 0xf000000; /* 240 MByte */
+
/* little-endian flag */
const uint8 DCERPC_DREP_LE = 0x10;