From f02a68a89f1da4d4e5b8e637b17b2bc09cd37d67 Mon Sep 17 00:00:00 2001 From: Jelmer Vernooij Date: Tue, 14 Oct 2008 23:46:34 +0200 Subject: Share ndr_compression.c. --- source3/librpc/ndr/ndr_compression.c | 293 ----------------------------------- source3/librpc/ndr/ndr_compression.h | 51 ------ 2 files changed, 344 deletions(-) delete mode 100644 source3/librpc/ndr/ndr_compression.c delete mode 100644 source3/librpc/ndr/ndr_compression.h (limited to 'source3/librpc/ndr') diff --git a/source3/librpc/ndr/ndr_compression.c b/source3/librpc/ndr/ndr_compression.c deleted file mode 100644 index 0784204a72..0000000000 --- a/source3/librpc/ndr/ndr_compression.c +++ /dev/null @@ -1,293 +0,0 @@ -/* - Unix SMB/CIFS implementation. - - libndr compression support - - Copyright (C) Stefan Metzmacher 2005 - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see . -*/ - -#include "includes.h" -#include "../compression/mszip.h" -#include "librpc/ndr/libndr.h" -#include "librpc/ndr/ndr_compression.h" - -static enum ndr_err_code ndr_pull_compression_mszip_chunk(struct ndr_pull *ndrpull, - struct ndr_push *ndrpush, - struct decomp_state *decomp_state, - bool *last) -{ - DATA_BLOB comp_chunk; - uint32_t comp_chunk_offset; - uint32_t comp_chunk_size; - DATA_BLOB plain_chunk; - uint32_t plain_chunk_offset; - uint32_t plain_chunk_size; - int ret; - - NDR_CHECK(ndr_pull_uint32(ndrpull, NDR_SCALARS, &plain_chunk_size)); - if (plain_chunk_size > 0x00008000) { - return ndr_pull_error(ndrpull, NDR_ERR_COMPRESSION, "Bad MSZIP plain chunk size %08X > 0x00008000 (PULL)", - plain_chunk_size); - } - - NDR_CHECK(ndr_pull_uint32(ndrpull, NDR_SCALARS, &comp_chunk_size)); - - DEBUG(10,("MSZIP plain_chunk_size: %08X (%u) comp_chunk_size: %08X (%u)\n", - plain_chunk_size, plain_chunk_size, comp_chunk_size, comp_chunk_size)); - - comp_chunk_offset = ndrpull->offset; - NDR_CHECK(ndr_pull_advance(ndrpull, comp_chunk_size)); - comp_chunk.length = comp_chunk_size; - comp_chunk.data = ndrpull->data + comp_chunk_offset; - - plain_chunk_offset = ndrpush->offset; - NDR_CHECK(ndr_push_zero(ndrpush, plain_chunk_size)); - plain_chunk.length = plain_chunk_size; - plain_chunk.data = ndrpush->data + plain_chunk_offset; - - ret = ZIPdecompress(decomp_state, &comp_chunk, &plain_chunk); - if (ret != DECR_OK) { - return ndr_pull_error(ndrpull, NDR_ERR_COMPRESSION, "Bad ZIPdecompress() error %d (PULL)", - ret); - } - - if ((plain_chunk_size < 0x00008000) || (ndrpull->offset+4 >= ndrpull->data_size)) { - /* this is the last chunk */ - *last = true; - } - - return NDR_ERR_SUCCESS; -} - -static enum ndr_err_code ndr_pull_compression_mszip(struct ndr_pull *subndr, - struct ndr_pull **_comndr, - ssize_t decompressed_len) -{ - struct ndr_push *ndrpush; - struct ndr_pull *comndr; - DATA_BLOB uncompressed; - uint32_t payload_header[4]; - uint32_t payload_size; - uint32_t payload_offset; - uint8_t *payload; - struct decomp_state *decomp_state; - bool last = false; - - ndrpush = ndr_push_init_ctx(subndr, NULL); - NDR_ERR_HAVE_NO_MEMORY(ndrpush); - - decomp_state = ZIPdecomp_state(subndr); - NDR_ERR_HAVE_NO_MEMORY(decomp_state); - - while (!last) { - NDR_CHECK(ndr_pull_compression_mszip_chunk(subndr, ndrpush, decomp_state, &last)); - } - - uncompressed = ndr_push_blob(ndrpush); - - if (uncompressed.length != decompressed_len) { - return ndr_pull_error(subndr, NDR_ERR_COMPRESSION, "Bad MSZIP uncompressed_len [%u] != [%d] (PULL)", - (int)uncompressed.length, (int)decompressed_len); - } - - comndr = talloc_zero(subndr, struct ndr_pull); - NDR_ERR_HAVE_NO_MEMORY(comndr); - comndr->flags = subndr->flags; - comndr->current_mem_ctx = subndr->current_mem_ctx; - - comndr->data = uncompressed.data; - comndr->data_size = uncompressed.length; - comndr->offset = 0; - - NDR_CHECK(ndr_pull_uint32(comndr, NDR_SCALARS, &payload_header[0])); - NDR_CHECK(ndr_pull_uint32(comndr, NDR_SCALARS, &payload_header[1])); - NDR_CHECK(ndr_pull_uint32(comndr, NDR_SCALARS, &payload_header[2])); - NDR_CHECK(ndr_pull_uint32(comndr, NDR_SCALARS, &payload_header[3])); - - if (payload_header[0] != 0x00081001) { - return ndr_pull_error(subndr, NDR_ERR_COMPRESSION, "Bad MSZIP payload_header[0] [0x%08X] != [0x00081001] (PULL)", - payload_header[0]); - } - if (payload_header[1] != 0xCCCCCCCC) { - return ndr_pull_error(subndr, NDR_ERR_COMPRESSION, "Bad MSZIP payload_header[1] [0x%08X] != [0xCCCCCCCC] (PULL)", - payload_header[1]); - } - - payload_size = payload_header[2]; - - if (payload_header[3] != 0x00000000) { - return ndr_pull_error(subndr, NDR_ERR_COMPRESSION, "Bad MSZIP payload_header[3] [0x%08X] != [0x00000000] (PULL)", - payload_header[3]); - } - - payload_offset = comndr->offset; - NDR_CHECK(ndr_pull_advance(comndr, payload_size)); - payload = comndr->data + payload_offset; - - comndr->data = payload; - comndr->data_size = payload_size; - comndr->offset = 0; - - *_comndr = comndr; - return NDR_ERR_SUCCESS; -} - -static enum ndr_err_code ndr_push_compression_mszip(struct ndr_push *subndr, - struct ndr_push *comndr) -{ - return ndr_push_error(subndr, NDR_ERR_COMPRESSION, "Sorry MSZIP compression is not supported yet (PUSH)"); -} - -static enum ndr_err_code ndr_pull_compression_xpress_chunk(struct ndr_pull *ndrpull, - struct ndr_push *ndrpush, - bool *last) -{ - DATA_BLOB comp_chunk; - uint32_t comp_chunk_offset; - uint32_t comp_chunk_size; - uint32_t plain_chunk_size; - - comp_chunk_offset = ndrpull->offset; - - NDR_CHECK(ndr_pull_uint32(ndrpull, NDR_SCALARS, &plain_chunk_size)); - if (plain_chunk_size > 0x00010000) { - return ndr_pull_error(ndrpull, NDR_ERR_COMPRESSION, "Bad XPRESS plain chunk size %08X > 0x00010000 (PULL)", - plain_chunk_size); - } - - NDR_CHECK(ndr_pull_uint32(ndrpull, NDR_SCALARS, &comp_chunk_size)); - - NDR_CHECK(ndr_pull_advance(ndrpull, comp_chunk_size)); - comp_chunk.length = comp_chunk_size + 8; - comp_chunk.data = ndrpull->data + comp_chunk_offset; - - DEBUG(10,("XPRESS plain_chunk_size: %08X (%u) comp_chunk_size: %08X (%u)\n", - plain_chunk_size, plain_chunk_size, comp_chunk_size, comp_chunk_size)); - - /* For now, we just copy over the compressed blob */ - NDR_CHECK(ndr_push_bytes(ndrpush, comp_chunk.data, comp_chunk.length)); - - if ((plain_chunk_size < 0x00010000) || (ndrpull->offset+4 >= ndrpull->data_size)) { - /* this is the last chunk */ - *last = true; - } - - return NDR_ERR_SUCCESS; -} - -static enum ndr_err_code ndr_pull_compression_xpress(struct ndr_pull *subndr, - struct ndr_pull **_comndr, - ssize_t decompressed_len) -{ - struct ndr_push *ndrpush; - struct ndr_pull *comndr; - DATA_BLOB uncompressed; - bool last = false; - - ndrpush = ndr_push_init_ctx(subndr, NULL); - NDR_ERR_HAVE_NO_MEMORY(ndrpush); - - while (!last) { - NDR_CHECK(ndr_pull_compression_xpress_chunk(subndr, ndrpush, &last)); - } - - uncompressed = ndr_push_blob(ndrpush); - - comndr = talloc_zero(subndr, struct ndr_pull); - NDR_ERR_HAVE_NO_MEMORY(comndr); - comndr->flags = subndr->flags; - comndr->current_mem_ctx = subndr->current_mem_ctx; - - comndr->data = uncompressed.data; - comndr->data_size = uncompressed.length; - comndr->offset = 0; - - *_comndr = comndr; - return NDR_ERR_SUCCESS; -} - -static enum ndr_err_code ndr_push_compression_xpress(struct ndr_push *subndr, - struct ndr_push *comndr) -{ - return ndr_push_error(subndr, NDR_ERR_COMPRESSION, "XPRESS compression is not supported yet (PUSH)"); -} - -/* - handle compressed subcontext buffers, which in midl land are user-marshalled, but - we use magic in pidl to make them easier to cope with -*/ -enum ndr_err_code ndr_pull_compression_start(struct ndr_pull *subndr, - struct ndr_pull **_comndr, - enum ndr_compression_alg compression_alg, - ssize_t decompressed_len) -{ - switch (compression_alg) { - case NDR_COMPRESSION_MSZIP: - return ndr_pull_compression_mszip(subndr, _comndr, decompressed_len); - case NDR_COMPRESSION_XPRESS: - return ndr_pull_compression_xpress(subndr, _comndr, decompressed_len); - default: - return ndr_pull_error(subndr, NDR_ERR_COMPRESSION, "Bad compression algorithm %d (PULL)", - compression_alg); - } - return NDR_ERR_SUCCESS; -} - -enum ndr_err_code ndr_pull_compression_end(struct ndr_pull *subndr, - struct ndr_pull *comndr, - enum ndr_compression_alg compression_alg, - ssize_t decompressed_len) -{ - return NDR_ERR_SUCCESS; -} - -/* - push a compressed subcontext -*/ -enum ndr_err_code ndr_push_compression_start(struct ndr_push *subndr, - struct ndr_push **_comndr, - enum ndr_compression_alg compression_alg, - ssize_t decompressed_len) -{ - struct ndr_push *comndr; - - comndr = ndr_push_init_ctx(subndr, NULL); - NDR_ERR_HAVE_NO_MEMORY(comndr); - comndr->flags = subndr->flags; - - *_comndr = comndr; - return NDR_ERR_SUCCESS; -} - -/* - push a compressed subcontext -*/ -enum ndr_err_code ndr_push_compression_end(struct ndr_push *subndr, - struct ndr_push *comndr, - enum ndr_compression_alg compression_alg, - ssize_t decompressed_len) -{ - switch (compression_alg) { - case NDR_COMPRESSION_MSZIP: - return ndr_push_compression_mszip(subndr, comndr); - case NDR_COMPRESSION_XPRESS: - return ndr_push_compression_xpress(subndr, comndr); - default: - return ndr_push_error(subndr, NDR_ERR_COMPRESSION, "Bad compression algorithm %d (PUSH)", - compression_alg); - } - return NDR_ERR_SUCCESS; -} diff --git a/source3/librpc/ndr/ndr_compression.h b/source3/librpc/ndr/ndr_compression.h deleted file mode 100644 index 4cebbe190c..0000000000 --- a/source3/librpc/ndr/ndr_compression.h +++ /dev/null @@ -1,51 +0,0 @@ -#ifndef __LIBRPC_NDR_NDR_COMPRESSION_H__ -#define __LIBRPC_NDR_NDR_COMPRESSION_H__ - -#undef _PRINTF_ATTRIBUTE -#define _PRINTF_ATTRIBUTE(a1, a2) PRINTF_ATTRIBUTE(a1, a2) -/* This file was automatically generated by mkproto.pl. DO NOT EDIT */ - -#ifndef _PUBLIC_ -#define _PUBLIC_ -#endif - -#ifndef _PURE_ -#define _PURE_ -#endif - -#ifndef _NORETURN_ -#define _NORETURN_ -#endif - -#ifndef _DEPRECATED_ -#define _DEPRECATED_ -#endif - -#ifndef _WARN_UNUSED_RESULT_ -#define _WARN_UNUSED_RESULT_ -#endif - - -/* The following definitions come from librpc/ndr/ndr_compression.c */ - -enum ndr_err_code ndr_pull_compression_start(struct ndr_pull *subndr, - struct ndr_pull **_comndr, - enum ndr_compression_alg compression_alg, - ssize_t decompressed_len); -enum ndr_err_code ndr_pull_compression_end(struct ndr_pull *subndr, - struct ndr_pull *comndr, - enum ndr_compression_alg compression_alg, - ssize_t decompressed_len); -enum ndr_err_code ndr_push_compression_start(struct ndr_push *subndr, - struct ndr_push **_comndr, - enum ndr_compression_alg compression_alg, - ssize_t decompressed_len); -enum ndr_err_code ndr_push_compression_end(struct ndr_push *subndr, - struct ndr_push *comndr, - enum ndr_compression_alg compression_alg, - ssize_t decompressed_len); -#undef _PRINTF_ATTRIBUTE -#define _PRINTF_ATTRIBUTE(a1, a2) - -#endif /* __LIBRPC_NDR_NDR_COMPRESSION_H__ */ - -- cgit