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librpc/ndr: Unimplement DRSUAPI_COMPRESSION_TYPE_XPRESS and rename

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DRSUAPI_COMPRESSION_TYPE_XPRESS is not MS-XCA nor is it implemented by
lzexpress_compress(), so disconnect from that algorithm.

This avoids someone fixing lzxpress_compress() to work for DRSUAPI
and breaking claims support.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
This commit is contained in:
Andrew Bartlett 2023-03-17 13:10:09 +13:00
parent 1dedffab8b
commit 937bf4b836
9 changed files with 26 additions and 25 deletions
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14
librpc/idl/drsuapi.idl
View File

@ -790,28 +790,28 @@ interface drsuapi
uint32 decompressed_length;
uint32 compressed_length;
[subcontext(4),subcontext_size(compressed_length),
compression(NDR_COMPRESSION_XPRESS,compressed_length,decompressed_length)]
compression(NDR_COMPRESSION_WIN2K3_LZ77_DIRECT2,compressed_length,decompressed_length)]
drsuapi_DsGetNCChangesCtr1TS *ts;
} drsuapi_DsGetNCChangesXPRESSCtr1;
} drsuapi_DsGetNCChangesWIN2K3_LZ77_DIRECT2Ctr1;
typedef [nopush] struct {
uint32 decompressed_length;
uint32 compressed_length;
[subcontext(4),subcontext_size(compressed_length),
compression(NDR_COMPRESSION_XPRESS,compressed_length,decompressed_length)]
compression(NDR_COMPRESSION_WIN2K3_LZ77_DIRECT2,compressed_length,decompressed_length)]
drsuapi_DsGetNCChangesCtr6TS *ts;
} drsuapi_DsGetNCChangesXPRESSCtr6;
} drsuapi_DsGetNCChangesWIN2K3_LZ77_DIRECT2Ctr6;
typedef [enum16bit] enum {
DRSUAPI_COMPRESSION_TYPE_MSZIP = 2,
DRSUAPI_COMPRESSION_TYPE_XPRESS = 3
DRSUAPI_COMPRESSION_TYPE_WIN2K3_LZ77_DIRECT2 = 3 /* CompressOrDecompressWin2k3 DRS_COMP_ALG_WIN2K3 */
} drsuapi_DsGetNCChangesCompressionType;
typedef [nodiscriminant,flag(NDR_PAHEX)] union {
[case(1|(DRSUAPI_COMPRESSION_TYPE_MSZIP<<16))] drsuapi_DsGetNCChangesMSZIPCtr1 mszip1;
[case(6|(DRSUAPI_COMPRESSION_TYPE_MSZIP<<16))] drsuapi_DsGetNCChangesMSZIPCtr6 mszip6;
[case(1|(DRSUAPI_COMPRESSION_TYPE_XPRESS<<16))] drsuapi_DsGetNCChangesXPRESSCtr1 xpress1;
[case(6|(DRSUAPI_COMPRESSION_TYPE_XPRESS<<16))] drsuapi_DsGetNCChangesXPRESSCtr6 xpress6;
[case(1|(DRSUAPI_COMPRESSION_TYPE_WIN2K3_LZ77_DIRECT2<<16))] drsuapi_DsGetNCChangesWIN2K3_LZ77_DIRECT2Ctr1 xpress1;
[case(6|(DRSUAPI_COMPRESSION_TYPE_WIN2K3_LZ77_DIRECT2<<16))] drsuapi_DsGetNCChangesWIN2K3_LZ77_DIRECT2Ctr6 xpress6;
} drsuapi_DsGetNCChangesCompressedCtr;
typedef struct {

3
librpc/ndr/libndr.h
View File

@ -292,7 +292,8 @@ enum ndr_err_code {
enum ndr_compression_alg {
NDR_COMPRESSION_MSZIP_CAB = 1,
NDR_COMPRESSION_MSZIP = 2,
NDR_COMPRESSION_XPRESS = 3
NDR_COMPRESSION_XPRESS = 3,
NDR_COMPRESSION_WIN2K3_LZ77_DIRECT2 = 4, /* Unimplemented */
};
/*

20
librpc/ndr/ndr_drsuapi.c
View File

@ -291,7 +291,7 @@ enum ndr_err_code ndr_push_drsuapi_DsGetNCChangesMSZIPCtr6(struct ndr_push *ndr,
return NDR_ERR_SUCCESS;
}
enum ndr_err_code ndr_push_drsuapi_DsGetNCChangesXPRESSCtr1(struct ndr_push *ndr, int ndr_flags, const struct drsuapi_DsGetNCChangesXPRESSCtr1 *r)
enum ndr_err_code ndr_push_drsuapi_DsGetNCChangesWIN2K3_LZ77_DIRECT2Ctr1(struct ndr_push *ndr, int ndr_flags, const struct drsuapi_DsGetNCChangesWIN2K3_LZ77_DIRECT2Ctr1 *r)
{
if (ndr_flags & NDR_SCALARS) {
uint32_t decompressed_length = 0;
@ -302,10 +302,10 @@ enum ndr_err_code ndr_push_drsuapi_DsGetNCChangesXPRESSCtr1(struct ndr_push *ndr
NDR_CHECK(ndr_push_subcontext_start(ndr, &_ndr_ts, 4, -1));
{
struct ndr_push *_ndr_ts_compressed;
NDR_CHECK(ndr_push_compression_start(_ndr_ts, &_ndr_ts_compressed, NDR_COMPRESSION_XPRESS, -1));
NDR_CHECK(ndr_push_compression_start(_ndr_ts, &_ndr_ts_compressed, NDR_COMPRESSION_WIN2K3_LZ77_DIRECT2, -1));
NDR_CHECK(ndr_push_drsuapi_DsGetNCChangesCtr1TS(_ndr_ts_compressed, NDR_SCALARS|NDR_BUFFERS, r->ts));
decompressed_length = _ndr_ts_compressed->offset;
NDR_CHECK(ndr_push_compression_end(_ndr_ts, _ndr_ts_compressed, NDR_COMPRESSION_XPRESS, -1));
NDR_CHECK(ndr_push_compression_end(_ndr_ts, _ndr_ts_compressed, NDR_COMPRESSION_WIN2K3_LZ77_DIRECT2, -1));
}
compressed_length = _ndr_ts->offset;
talloc_free(_ndr_ts);
@ -323,9 +323,9 @@ enum ndr_err_code ndr_push_drsuapi_DsGetNCChangesXPRESSCtr1(struct ndr_push *ndr
NDR_CHECK(ndr_push_subcontext_start(ndr, &_ndr_ts, 4, -1));
{
struct ndr_push *_ndr_ts_compressed;
NDR_CHECK(ndr_push_compression_start(_ndr_ts, &_ndr_ts_compressed, NDR_COMPRESSION_XPRESS, -1));
NDR_CHECK(ndr_push_compression_start(_ndr_ts, &_ndr_ts_compressed, NDR_COMPRESSION_WIN2K3_LZ77_DIRECT2, -1));
NDR_CHECK(ndr_push_drsuapi_DsGetNCChangesCtr1TS(_ndr_ts_compressed, NDR_SCALARS|NDR_BUFFERS, r->ts));
NDR_CHECK(ndr_push_compression_end(_ndr_ts, _ndr_ts_compressed, NDR_COMPRESSION_XPRESS, -1));
NDR_CHECK(ndr_push_compression_end(_ndr_ts, _ndr_ts_compressed, NDR_COMPRESSION_WIN2K3_LZ77_DIRECT2, -1));
}
NDR_CHECK(ndr_push_subcontext_end(ndr, _ndr_ts, 4, -1));
}
@ -334,7 +334,7 @@ enum ndr_err_code ndr_push_drsuapi_DsGetNCChangesXPRESSCtr1(struct ndr_push *ndr
return NDR_ERR_SUCCESS;
}
enum ndr_err_code ndr_push_drsuapi_DsGetNCChangesXPRESSCtr6(struct ndr_push *ndr, int ndr_flags, const struct drsuapi_DsGetNCChangesXPRESSCtr6 *r)
enum ndr_err_code ndr_push_drsuapi_DsGetNCChangesWIN2K3_LZ77_DIRECT2Ctr6(struct ndr_push *ndr, int ndr_flags, const struct drsuapi_DsGetNCChangesWIN2K3_LZ77_DIRECT2Ctr6 *r)
{
if (ndr_flags & NDR_SCALARS) {
uint32_t decompressed_length = 0;
@ -345,10 +345,10 @@ enum ndr_err_code ndr_push_drsuapi_DsGetNCChangesXPRESSCtr6(struct ndr_push *ndr
NDR_CHECK(ndr_push_subcontext_start(ndr, &_ndr_ts, 4, -1));
{
struct ndr_push *_ndr_ts_compressed;
NDR_CHECK(ndr_push_compression_start(_ndr_ts, &_ndr_ts_compressed, NDR_COMPRESSION_XPRESS, -1));
NDR_CHECK(ndr_push_compression_start(_ndr_ts, &_ndr_ts_compressed, NDR_COMPRESSION_WIN2K3_LZ77_DIRECT2, -1));
NDR_CHECK(ndr_push_drsuapi_DsGetNCChangesCtr6TS(_ndr_ts_compressed, NDR_SCALARS|NDR_BUFFERS, r->ts));
decompressed_length = _ndr_ts_compressed->offset;
NDR_CHECK(ndr_push_compression_end(_ndr_ts, _ndr_ts_compressed, NDR_COMPRESSION_XPRESS, -1));
NDR_CHECK(ndr_push_compression_end(_ndr_ts, _ndr_ts_compressed, NDR_COMPRESSION_WIN2K3_LZ77_DIRECT2, -1));
}
compressed_length = _ndr_ts->offset;
talloc_free(_ndr_ts);
@ -366,9 +366,9 @@ enum ndr_err_code ndr_push_drsuapi_DsGetNCChangesXPRESSCtr6(struct ndr_push *ndr
NDR_CHECK(ndr_push_subcontext_start(ndr, &_ndr_ts, 4, -1));
{
struct ndr_push *_ndr_ts_compressed;
NDR_CHECK(ndr_push_compression_start(_ndr_ts, &_ndr_ts_compressed, NDR_COMPRESSION_XPRESS, -1));
NDR_CHECK(ndr_push_compression_start(_ndr_ts, &_ndr_ts_compressed, NDR_COMPRESSION_WIN2K3_LZ77_DIRECT2, -1));
NDR_CHECK(ndr_push_drsuapi_DsGetNCChangesCtr6TS(_ndr_ts_compressed, NDR_SCALARS|NDR_BUFFERS, r->ts));
NDR_CHECK(ndr_push_compression_end(_ndr_ts, _ndr_ts_compressed, NDR_COMPRESSION_XPRESS, -1));
NDR_CHECK(ndr_push_compression_end(_ndr_ts, _ndr_ts_compressed, NDR_COMPRESSION_WIN2K3_LZ77_DIRECT2, -1));
}
NDR_CHECK(ndr_push_subcontext_end(ndr, _ndr_ts, 4, -1));
}

4
python/samba/tests/blackbox/ndrdump.py
View File

@ -525,7 +525,7 @@ dump OK
self.assertEqual(actual, expected)
def test_ndrdump_fuzzed_ndr_compression(self):
expected = 'pull returned Buffer Size Error'
expected = 'ndr_pull_compression_start: ndr_pull_error\(Compression Error\): Bad compression algorithm 4 \(PULL\)'
command = (
"ndrdump --debug-stdout drsuapi 3 out --base64-input "
"--input BwAAAAcAAAAGAAAAAwAgICAgICAJAAAAICAgIAkAAAAgIAAA//////8=")
@ -535,7 +535,7 @@ dump OK
self.fail(e)
# check_output will return bytes
# convert expected to bytes for python 3
self.assertRegex(actual.decode('utf8'), expected + '$')
self.assertRegex(actual.decode('utf8'), expected)
def test_ndrdump_short_dnsProperty(self):
expected = b'''pull returned Success

2
source3/libnet/libnet_dssync.c
View File

@ -522,7 +522,7 @@ static NTSTATUS libnet_dssync_getncchanges(TALLOC_CTX *mem_ctx,
ctr6 = &ctr.ctr7.ctr.mszip6.ts->ctr6;
} else if (level_out == 7
&& ctr.ctr7.level == 6
&& ctr.ctr7.type == DRSUAPI_COMPRESSION_TYPE_XPRESS
&& ctr.ctr7.type == DRSUAPI_COMPRESSION_TYPE_WIN2K3_LZ77_DIRECT2
&& ctr.ctr7.ctr.xpress6.ts) {
out_level = 6;
ctr6 = &ctr.ctr7.ctr.xpress6.ts->ctr6;

2
source3/rpcclient/cmd_drsuapi.c
View File

@ -642,7 +642,7 @@ static WERROR cmd_drsuapi_getncchanges(struct rpc_pipe_client *cli,
ctr6 = &ctr.ctr7.ctr.mszip6.ts->ctr6;
} else if (level_out == 7
&& ctr.ctr7.level == 6
&& ctr.ctr7.type == DRSUAPI_COMPRESSION_TYPE_XPRESS
&& ctr.ctr7.type == DRSUAPI_COMPRESSION_TYPE_WIN2K3_LZ77_DIRECT2
&& ctr.ctr7.ctr.xpress6.ts) {
out_level = 6;
ctr6 = &ctr.ctr7.ctr.xpress6.ts->ctr6;

2
source4/dsdb/repl/drepl_out_helpers.c
View File

@ -724,7 +724,7 @@ static void dreplsrv_op_pull_source_get_changes_done(struct tevent_req *subreq)
ctr6 = &r->out.ctr->ctr7.ctr.mszip6.ts->ctr6;
} else if (*r->out.level_out == 7 &&
r->out.ctr->ctr7.level == 6 &&
r->out.ctr->ctr7.type == DRSUAPI_COMPRESSION_TYPE_XPRESS &&
r->out.ctr->ctr7.type == DRSUAPI_COMPRESSION_TYPE_WIN2K3_LZ77_DIRECT2 &&
r->out.ctr->ctr7.ctr.xpress6.ts) {
ctr_level = 6;
ctr6 = &r->out.ctr->ctr7.ctr.xpress6.ts->ctr6;

2
source4/libnet/libnet_become_dc.c
View File

@ -2725,7 +2725,7 @@ static WERROR becomeDC_drsuapi_pull_partition_recv(struct libnet_BecomeDC_state
ctr6 = &r->out.ctr->ctr7.ctr.mszip6.ts->ctr6;
} else if (*r->out.level_out == 7 &&
r->out.ctr->ctr7.level == 6 &&
r->out.ctr->ctr7.type == DRSUAPI_COMPRESSION_TYPE_XPRESS &&
r->out.ctr->ctr7.type == DRSUAPI_COMPRESSION_TYPE_WIN2K3_LZ77_DIRECT2 &&
r->out.ctr->ctr7.ctr.xpress6.ts) {
ctr_level = 6;
ctr6 = &r->out.ctr->ctr7.ctr.xpress6.ts->ctr6;

2
source4/torture/drs/rpc/dssync.c
View File

@ -859,7 +859,7 @@ static bool test_GetNCChanges(struct torture_context *tctx,
ctr6 = &r.out.ctr->ctr7.ctr.mszip6.ts->ctr6;
} else if (ret == true && *r.out.level_out == 7
&& r.out.ctr->ctr7.level == 6
&& r.out.ctr->ctr7.type == DRSUAPI_COMPRESSION_TYPE_XPRESS
&& r.out.ctr->ctr7.type == DRSUAPI_COMPRESSION_TYPE_WIN2K3_LZ77_DIRECT2
&& r.out.ctr->ctr7.ctr.xpress6.ts) {
out_level = 6;
ctr6 = &r.out.ctr->ctr7.ctr.xpress6.ts->ctr6;