diff options
Diffstat (limited to 'librpc/ndr/ndr_negoex.c')
| -rw-r--r-- | librpc/ndr/ndr_negoex.c | 521 |
1 files changed, 521 insertions, 0 deletions
diff --git a/librpc/ndr/ndr_negoex.c b/librpc/ndr/ndr_negoex.c new file mode 100644 index 0000000..26b98f4 --- /dev/null +++ b/librpc/ndr/ndr_negoex.c @@ -0,0 +1,521 @@ +/* + Unix SMB/CIFS implementation. + + routines for marshalling/unmarshalling special NEGOEX structures + + Copyright (C) Stefan Metzmacher 2015 + + 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 <http://www.gnu.org/licenses/>. +*/ +#include "includes.h" +#include "librpc/gen_ndr/ndr_negoex.h" +#include "librpc/gen_ndr/ndr_misc.h" +#include "librpc/ndr/ndr_negoex.h" + +void ndr_print_negoex_BYTE_VECTOR(struct ndr_print *ndr, const char *name, const struct negoex_BYTE_VECTOR *r) +{ + ndr_print_struct(ndr, name, "negoex_BYTE_VECTOR"); + if (r == NULL) { ndr_print_null(ndr); return; } + ndr->depth++; + ndr_print_DATA_BLOB(ndr, "blob", r->blob); + ndr->depth--; +} + +enum ndr_err_code ndr_push_negoex_BYTE_VECTOR(struct ndr_push *ndr, ndr_flags_type ndr_flags, const struct negoex_BYTE_VECTOR *r) +{ + NDR_PUSH_CHECK_FLAGS(ndr, ndr_flags); + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_push_align(ndr, 5)); + NDR_CHECK(ndr_push_relative_ptr1(ndr, r->blob.data)); + NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->blob.length)); + NDR_CHECK(ndr_push_trailer_align(ndr, 5)); + } + if (ndr_flags & NDR_BUFFERS) { + if (r->blob.data) { + NDR_CHECK(ndr_push_relative_ptr2_start(ndr, r->blob.data)); +#if 0 + NDR_CHECK(ndr_push_uint3264(ndr, NDR_SCALARS, r->blob.length)); +#endif + NDR_CHECK(ndr_push_array_uint8(ndr, NDR_SCALARS, r->blob.data, r->blob.length)); + NDR_CHECK(ndr_push_relative_ptr2_end(ndr, r->blob.data)); + } + } + return NDR_ERR_SUCCESS; +} + +enum ndr_err_code ndr_pull_negoex_BYTE_VECTOR(struct ndr_pull *ndr, ndr_flags_type ndr_flags, struct negoex_BYTE_VECTOR *r) +{ + uint32_t _ptr_data; + uint32_t size_data_1 = 0; + TALLOC_CTX *_mem_save_data_0 = NULL; + NDR_PULL_CHECK_FLAGS(ndr, ndr_flags); + r->_dummy = NULL; + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_pull_align(ndr, 5)); + NDR_CHECK(ndr_pull_generic_ptr(ndr, &_ptr_data)); + if (_ptr_data) { + NDR_PULL_ALLOC(ndr, r->blob.data); + NDR_CHECK(ndr_pull_relative_ptr1(ndr, r->blob.data, _ptr_data)); + } else { + r->blob.data = NULL; + } + r->blob.length = 0; + NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &size_data_1)); + r->_length = size_data_1; + NDR_CHECK(ndr_pull_trailer_align(ndr, 5)); + } + if (ndr_flags & NDR_BUFFERS) { + if (r->blob.data) { + uint32_t _relative_save_offset; + _relative_save_offset = ndr->offset; + NDR_CHECK(ndr_pull_relative_ptr2(ndr, r->blob.data)); + _mem_save_data_0 = NDR_PULL_GET_MEM_CTX(ndr); + NDR_PULL_SET_MEM_CTX(ndr, r->blob.data, 0); +#if 0 + NDR_CHECK(ndr_pull_array_size(ndr, &r->blob.data)); + size_data_1 = ndr_get_array_size(ndr, &r->blob.data); +#else + size_data_1 = r->_length; +#endif + NDR_PULL_ALLOC_N(ndr, r->blob.data, size_data_1); + NDR_CHECK(ndr_pull_array_uint8(ndr, NDR_SCALARS, r->blob.data, size_data_1)); + r->blob.length = size_data_1; + NDR_PULL_SET_MEM_CTX(ndr, _mem_save_data_0, 0); + if (ndr->offset > ndr->relative_highest_offset) { + ndr->relative_highest_offset = ndr->offset; + } + ndr->offset = _relative_save_offset; + } +#if 0 + if (r->blob.data) { + NDR_CHECK(ndr_check_steal_array_size(ndr, (void*)&r->blob.data, r->blob.length)); + } +#endif + } + return NDR_ERR_SUCCESS; +} + +enum ndr_err_code ndr_push_negoex_AUTH_SCHEME_VECTOR(struct ndr_push *ndr, ndr_flags_type ndr_flags, const struct negoex_AUTH_SCHEME_VECTOR *r) +{ + uint32_t cntr_array_1; + NDR_PUSH_CHECK_FLAGS(ndr, ndr_flags); + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_push_align(ndr, 5)); + NDR_CHECK(ndr_push_relative_ptr1(ndr, r->array)); + NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->count)); + NDR_CHECK(ndr_push_trailer_align(ndr, 5)); + } + if (ndr_flags & NDR_BUFFERS) { + if (r->array) { + NDR_CHECK(ndr_push_relative_ptr2_start(ndr, r->array)); +#if 0 + NDR_CHECK(ndr_push_uint3264(ndr, NDR_SCALARS, r->count)); +#endif + for (cntr_array_1 = 0; cntr_array_1 < (r->count); cntr_array_1++) { + NDR_CHECK(ndr_push_negoex_AUTH_SCHEME(ndr, NDR_SCALARS, &r->array[cntr_array_1])); + } + NDR_CHECK(ndr_push_relative_ptr2_end(ndr, r->array)); + } + } + return NDR_ERR_SUCCESS; +} + +enum ndr_err_code ndr_pull_negoex_AUTH_SCHEME_VECTOR(struct ndr_pull *ndr, ndr_flags_type ndr_flags, struct negoex_AUTH_SCHEME_VECTOR *r) +{ + uint32_t _ptr_array; + uint32_t size_array_1 = 0; + uint32_t cntr_array_1; + TALLOC_CTX *_mem_save_array_0 = NULL; + TALLOC_CTX *_mem_save_array_1 = NULL; + NDR_PULL_CHECK_FLAGS(ndr, ndr_flags); + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_pull_align(ndr, 5)); + NDR_CHECK(ndr_pull_generic_ptr(ndr, &_ptr_array)); + if (_ptr_array) { + NDR_PULL_ALLOC(ndr, r->array); + NDR_CHECK(ndr_pull_relative_ptr1(ndr, r->array, _ptr_array)); + } else { + r->array = NULL; + } + NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->count)); + NDR_CHECK(ndr_pull_trailer_align(ndr, 5)); + } + if (ndr_flags & NDR_BUFFERS) { + if (r->array) { + uint32_t _relative_save_offset; + _relative_save_offset = ndr->offset; + NDR_CHECK(ndr_pull_relative_ptr2(ndr, r->array)); + _mem_save_array_0 = NDR_PULL_GET_MEM_CTX(ndr); + NDR_PULL_SET_MEM_CTX(ndr, r->array, 0); +#if 0 + NDR_CHECK(ndr_pull_array_size(ndr, &r->array)); + size_array_1 = ndr_get_array_size(ndr, &r->array); +#else + size_array_1 = r->count; +#endif + NDR_PULL_ALLOC_N(ndr, r->array, size_array_1); + _mem_save_array_1 = NDR_PULL_GET_MEM_CTX(ndr); + NDR_PULL_SET_MEM_CTX(ndr, r->array, 0); + for (cntr_array_1 = 0; cntr_array_1 < (size_array_1); cntr_array_1++) { + NDR_CHECK(ndr_pull_negoex_AUTH_SCHEME(ndr, NDR_SCALARS, &r->array[cntr_array_1])); + } + NDR_PULL_SET_MEM_CTX(ndr, _mem_save_array_1, 0); + NDR_PULL_SET_MEM_CTX(ndr, _mem_save_array_0, 0); + if (ndr->offset > ndr->relative_highest_offset) { + ndr->relative_highest_offset = ndr->offset; + } + ndr->offset = _relative_save_offset; + } +#if 0 + if (r->array) { + NDR_CHECK(ndr_check_steal_array_size(ndr, (void*)&r->array, r->count)); + } +#endif + } + return NDR_ERR_SUCCESS; +} + +enum ndr_err_code ndr_push_negoex_EXTENSION_VECTOR(struct ndr_push *ndr, ndr_flags_type ndr_flags, const struct negoex_EXTENSION_VECTOR *r) +{ + uint32_t cntr_array_1; + NDR_PUSH_CHECK_FLAGS(ndr, ndr_flags); + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_push_align(ndr, 5)); + NDR_CHECK(ndr_push_relative_ptr1(ndr, r->array)); + NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->count)); + NDR_CHECK(ndr_push_trailer_align(ndr, 5)); + } + if (ndr_flags & NDR_BUFFERS) { + if (r->array) { + NDR_CHECK(ndr_push_relative_ptr2_start(ndr, r->array)); +#if 0 + NDR_CHECK(ndr_push_uint3264(ndr, NDR_SCALARS, r->count)); +#endif + for (cntr_array_1 = 0; cntr_array_1 < (r->count); cntr_array_1++) { + NDR_CHECK(ndr_push_negoex_EXTENSION(ndr, NDR_SCALARS, &r->array[cntr_array_1])); + } + for (cntr_array_1 = 0; cntr_array_1 < (r->count); cntr_array_1++) { + NDR_CHECK(ndr_push_negoex_EXTENSION(ndr, NDR_BUFFERS, &r->array[cntr_array_1])); + } + NDR_CHECK(ndr_push_relative_ptr2_end(ndr, r->array)); + } + } + return NDR_ERR_SUCCESS; +} + +enum ndr_err_code ndr_pull_negoex_EXTENSION_VECTOR(struct ndr_pull *ndr, ndr_flags_type ndr_flags, struct negoex_EXTENSION_VECTOR *r) +{ + uint32_t _ptr_array; + uint32_t size_array_1 = 0; + uint32_t cntr_array_1; + TALLOC_CTX *_mem_save_array_0 = NULL; + TALLOC_CTX *_mem_save_array_1 = NULL; + NDR_PULL_CHECK_FLAGS(ndr, ndr_flags); + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_pull_align(ndr, 5)); + NDR_CHECK(ndr_pull_generic_ptr(ndr, &_ptr_array)); + if (_ptr_array) { + NDR_PULL_ALLOC(ndr, r->array); + NDR_CHECK(ndr_pull_relative_ptr1(ndr, r->array, _ptr_array)); + } else { + r->array = NULL; + } + NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->count)); + NDR_CHECK(ndr_pull_trailer_align(ndr, 5)); + } + if (ndr_flags & NDR_BUFFERS) { + if (r->array) { + uint32_t _relative_save_offset; + _relative_save_offset = ndr->offset; + NDR_CHECK(ndr_pull_relative_ptr2(ndr, r->array)); + _mem_save_array_0 = NDR_PULL_GET_MEM_CTX(ndr); + NDR_PULL_SET_MEM_CTX(ndr, r->array, 0); +#if 0 + NDR_CHECK(ndr_pull_array_size(ndr, &r->array)); + size_array_1 = ndr_get_array_size(ndr, &r->array); +#else + size_array_1 = r->count; +#endif + NDR_PULL_ALLOC_N(ndr, r->array, size_array_1); + _mem_save_array_1 = NDR_PULL_GET_MEM_CTX(ndr); + NDR_PULL_SET_MEM_CTX(ndr, r->array, 0); + for (cntr_array_1 = 0; cntr_array_1 < (size_array_1); cntr_array_1++) { + NDR_CHECK(ndr_pull_negoex_EXTENSION(ndr, NDR_SCALARS, &r->array[cntr_array_1])); + } + for (cntr_array_1 = 0; cntr_array_1 < (size_array_1); cntr_array_1++) { + NDR_CHECK(ndr_pull_negoex_EXTENSION(ndr, NDR_BUFFERS, &r->array[cntr_array_1])); + } + NDR_PULL_SET_MEM_CTX(ndr, _mem_save_array_1, 0); + NDR_PULL_SET_MEM_CTX(ndr, _mem_save_array_0, 0); + if (ndr->offset > ndr->relative_highest_offset) { + ndr->relative_highest_offset = ndr->offset; + } + ndr->offset = _relative_save_offset; + } +#if 0 + if (r->array) { + NDR_CHECK(ndr_check_steal_array_size(ndr, (void*)&r->array, r->count)); + } +#endif + } + return NDR_ERR_SUCCESS; +} + +enum ndr_err_code ndr_push_negoex_ALERT_VECTOR(struct ndr_push *ndr, ndr_flags_type ndr_flags, const struct negoex_ALERT_VECTOR *r) +{ + uint32_t cntr_array_1; + NDR_PUSH_CHECK_FLAGS(ndr, ndr_flags); + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_push_align(ndr, 5)); + NDR_CHECK(ndr_push_relative_ptr1(ndr, r->array)); + NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->count)); + NDR_CHECK(ndr_push_trailer_align(ndr, 5)); + } + if (ndr_flags & NDR_BUFFERS) { + if (r->array) { + NDR_CHECK(ndr_push_relative_ptr2_start(ndr, r->array)); +#if 0 + NDR_CHECK(ndr_push_uint3264(ndr, NDR_SCALARS, r->count)); +#endif + for (cntr_array_1 = 0; cntr_array_1 < (r->count); cntr_array_1++) { + NDR_CHECK(ndr_push_negoex_ALERT(ndr, NDR_SCALARS, &r->array[cntr_array_1])); + } + for (cntr_array_1 = 0; cntr_array_1 < (r->count); cntr_array_1++) { + NDR_CHECK(ndr_push_negoex_ALERT(ndr, NDR_BUFFERS, &r->array[cntr_array_1])); + } + NDR_CHECK(ndr_push_relative_ptr2_end(ndr, r->array)); + } + } + return NDR_ERR_SUCCESS; +} + +enum ndr_err_code ndr_pull_negoex_ALERT_VECTOR(struct ndr_pull *ndr, ndr_flags_type ndr_flags, struct negoex_ALERT_VECTOR *r) +{ + uint32_t _ptr_array; + uint32_t size_array_1 = 0; + uint32_t cntr_array_1; + TALLOC_CTX *_mem_save_array_0 = NULL; + TALLOC_CTX *_mem_save_array_1 = NULL; + NDR_PULL_CHECK_FLAGS(ndr, ndr_flags); + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_pull_align(ndr, 5)); + NDR_CHECK(ndr_pull_generic_ptr(ndr, &_ptr_array)); + if (_ptr_array) { + NDR_PULL_ALLOC(ndr, r->array); + NDR_CHECK(ndr_pull_relative_ptr1(ndr, r->array, _ptr_array)); + } else { + r->array = NULL; + } + NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->count)); + NDR_CHECK(ndr_pull_trailer_align(ndr, 5)); + } + if (ndr_flags & NDR_BUFFERS) { + if (r->array) { + uint32_t _relative_save_offset; + _relative_save_offset = ndr->offset; + NDR_CHECK(ndr_pull_relative_ptr2(ndr, r->array)); + _mem_save_array_0 = NDR_PULL_GET_MEM_CTX(ndr); + NDR_PULL_SET_MEM_CTX(ndr, r->array, 0); +#if 0 + NDR_CHECK(ndr_pull_array_size(ndr, &r->array)); + size_array_1 = ndr_get_array_size(ndr, &r->array); +#else + size_array_1 = r->count; +#endif + NDR_PULL_ALLOC_N(ndr, r->array, size_array_1); + _mem_save_array_1 = NDR_PULL_GET_MEM_CTX(ndr); + NDR_PULL_SET_MEM_CTX(ndr, r->array, 0); + for (cntr_array_1 = 0; cntr_array_1 < (size_array_1); cntr_array_1++) { + NDR_CHECK(ndr_pull_negoex_ALERT(ndr, NDR_SCALARS, &r->array[cntr_array_1])); + } + for (cntr_array_1 = 0; cntr_array_1 < (size_array_1); cntr_array_1++) { + NDR_CHECK(ndr_pull_negoex_ALERT(ndr, NDR_BUFFERS, &r->array[cntr_array_1])); + } + NDR_PULL_SET_MEM_CTX(ndr, _mem_save_array_1, 0); + NDR_PULL_SET_MEM_CTX(ndr, _mem_save_array_0, 0); + if (ndr->offset > ndr->relative_highest_offset) { + ndr->relative_highest_offset = ndr->offset; + } + ndr->offset = _relative_save_offset; + } +#if 0 + if (r->array) { + NDR_CHECK(ndr_check_steal_array_size(ndr, (void*)&r->array, r->count)); + } +#endif + } + return NDR_ERR_SUCCESS; +} + +size_t ndr_negoex_MESSAGE_header_length(const struct negoex_MESSAGE *r) +{ + size_t size = 0; + + size += 8; /* signature */ + size += 4; /* type */ + size += 4; /* sequence_number */ + size += 4; /* header_length */ + size += 4; /* message_length */ + size += 16; /* conversation_id */ + + switch (r->type) { + case NEGOEX_MESSAGE_TYPE_INITIATOR_NEGO: + case NEGOEX_MESSAGE_TYPE_ACCEPTOR_NEGO: + size += 32; /* random */ + size += 8; /* protocol_version */ + size += 8; /* auth_schemes */ + size += 8; /* extensions */ + break; + + case NEGOEX_MESSAGE_TYPE_INITIATOR_META_DATA: + case NEGOEX_MESSAGE_TYPE_ACCEPTOR_META_DATA: + case NEGOEX_MESSAGE_TYPE_CHALLENGE: + case NEGOEX_MESSAGE_TYPE_AP_REQUEST: + size += 16; /* auth_scheme */ + size += 8; /* exchange */ + break; + + case NEGOEX_MESSAGE_TYPE_VERIFY: + size += 16; /* auth_scheme */ + size += 4; /* checksum.header_length */ + size += 4; /* checksum.scheme */ + size += 4; /* checksum.type */ + size += 8; /* checksum.value */ + break; + + case NEGOEX_MESSAGE_TYPE_ALERT: + size += 16; /* auth_scheme */ + size += 4; /* status */ + size += 8; /* alerts */ + break; + } + + return size; +} + +enum ndr_err_code ndr_pull_negoex_MESSAGE(struct ndr_pull *ndr, ndr_flags_type ndr_flags, struct negoex_MESSAGE *r) +{ + uint32_t _save_relative_base_offset = ndr_pull_get_relative_base_offset(ndr); + uint32_t size_signature_0 = 0; + uint32_t start_data_size = ndr->data_size; + uint32_t saved_offset = 0; + NDR_PULL_CHECK_FLAGS(ndr, ndr_flags); + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_pull_align(ndr, 5)); + NDR_CHECK(ndr_pull_setup_relative_base_offset1(ndr, r, ndr->offset)); + size_signature_0 = 8; + NDR_CHECK(ndr_pull_charset(ndr, NDR_SCALARS, &r->signature, size_signature_0, sizeof(uint8_t), CH_DOS)); + NDR_CHECK(ndr_pull_negoex_MESSAGE_TYPE(ndr, NDR_SCALARS, &r->type)); + NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->sequence_number)); + NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->header_length)); + NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->message_length)); + saved_offset = ndr->offset; + ndr->offset = ndr->relative_base_offset; + NDR_PULL_NEED_BYTES(ndr, r->message_length); + ndr->data_size = ndr->offset + r->message_length; + ndr->offset = saved_offset; + NDR_CHECK(ndr_pull_GUID(ndr, NDR_SCALARS, &r->conversation_id)); + NDR_CHECK(ndr_pull_set_switch_value(ndr, &r->p, r->type)); + NDR_CHECK(ndr_pull_negoex_PAYLOAD(ndr, NDR_SCALARS, &r->p)); + NDR_CHECK(ndr_pull_trailer_align(ndr, 5)); + ndr->offset = ndr->data_size; + ndr->data_size = start_data_size; + } + if (ndr_flags & NDR_BUFFERS) { + NDR_CHECK(ndr_pull_setup_relative_base_offset2(ndr, r)); + saved_offset = ndr->offset; + ndr->offset = ndr->relative_base_offset; + NDR_PULL_NEED_BYTES(ndr, r->message_length); + ndr->data_size = ndr->offset + r->message_length; + ndr->offset = saved_offset; + NDR_CHECK(ndr_pull_set_switch_value(ndr, &r->p, r->type)); + NDR_CHECK(ndr_pull_negoex_PAYLOAD(ndr, NDR_BUFFERS, &r->p)); + ndr->offset = ndr->data_size; + ndr->data_size = start_data_size; + } + ndr_pull_restore_relative_base_offset(ndr, _save_relative_base_offset); + return NDR_ERR_SUCCESS; +} + +enum ndr_err_code ndr_push_negoex_MESSAGE_ARRAY(struct ndr_push *ndr, ndr_flags_type ndr_flags, const struct negoex_MESSAGE_ARRAY *r) +{ + uint32_t cntr_messages_0; + { + libndr_flags _flags_save_STRUCT = ndr->flags; + ndr_set_flags(&ndr->flags, LIBNDR_FLAG_NOALIGN); + NDR_PUSH_CHECK_FLAGS(ndr, ndr_flags); + if (ndr_flags & NDR_SCALARS) { + NDR_CHECK(ndr_push_align(ndr, 5)); + for (cntr_messages_0 = 0; cntr_messages_0 < (r->count); cntr_messages_0++) { + NDR_CHECK(ndr_push_negoex_MESSAGE(ndr, NDR_SCALARS|NDR_BUFFERS, &r->messages[cntr_messages_0])); + } + NDR_CHECK(ndr_push_trailer_align(ndr, 5)); + } + ndr->flags = _flags_save_STRUCT; + } + return NDR_ERR_SUCCESS; +} + +enum ndr_err_code ndr_pull_negoex_MESSAGE_ARRAY(struct ndr_pull *ndr, ndr_flags_type ndr_flags, struct negoex_MESSAGE_ARRAY *r) +{ + uint32_t size_messages_0 = 0; + uint32_t cntr_messages_0; + TALLOC_CTX *_mem_save_messages_0 = NULL; + { + libndr_flags _flags_save_STRUCT = ndr->flags; + ndr_set_flags(&ndr->flags, LIBNDR_FLAG_NOALIGN); + NDR_PULL_CHECK_FLAGS(ndr, ndr_flags); + if (ndr_flags & NDR_SCALARS) { + uint32_t saved_offset = ndr->offset; + uint32_t available = 0; + NDR_CHECK(ndr_pull_align(ndr, 5)); + r->count = 0; + available = ndr->data_size - ndr->offset; + while (available > 0) { + uint32_t length; + + /* + * The common header is 40 bytes + * and message_length is at offset 20 + */ + NDR_PULL_NEED_BYTES(ndr, 40); + ndr->offset += 20; + NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &length)); + ndr->offset -= 24; + if (length < 40) { + /* + * let the pull function catch the error + */ + length = 40; + } + NDR_PULL_NEED_BYTES(ndr, length); + ndr->offset += length; + available -= length; + r->count++; + } + ndr->offset = saved_offset; + size_messages_0 = r->count; + NDR_PULL_ALLOC_N(ndr, r->messages, size_messages_0); + _mem_save_messages_0 = NDR_PULL_GET_MEM_CTX(ndr); + NDR_PULL_SET_MEM_CTX(ndr, r->messages, 0); + for (cntr_messages_0 = 0; cntr_messages_0 < (size_messages_0); cntr_messages_0++) { + NDR_CHECK(ndr_pull_negoex_MESSAGE(ndr, NDR_SCALARS|NDR_BUFFERS, &r->messages[cntr_messages_0])); + } + NDR_PULL_SET_MEM_CTX(ndr, _mem_save_messages_0, 0); + NDR_CHECK(ndr_pull_trailer_align(ndr, 5)); + } + ndr->flags = _flags_save_STRUCT; + } + return NDR_ERR_SUCCESS; +} |