path: root/librpc/ndr/ndr_nbt.c

/*
   Unix SMB/CIFS implementation.

   CLDAP server structures

   Copyright (C) Andrew Tridgell 2005
   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008

   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/>.
*/

/* parser auto-generated by pidl, then hand-modified by abartlet */

#include "includes.h"
#include "../libcli/nbt/libnbt.h"
#include "../libcli/netlogon/netlogon.h"

/* don't allow an unlimited number of name components */
#define MAX_COMPONENTS 10

/**
  print a nbt string
*/
_PUBLIC_ void ndr_print_nbt_string(struct ndr_print *ndr, const char *name, const char *s)
{
	ndr_print_string(ndr, name, s);
}

/*
  pull one component of a nbt_string
*/
static enum ndr_err_code ndr_pull_component(struct ndr_pull *ndr,
					    uint8_t **component,
					    uint32_t *offset,
					    uint32_t *max_offset)
{
	uint8_t len;
	unsigned int loops = 0;
	while (loops < 5) {
		if (*offset >= ndr->data_size) {
			return ndr_pull_error(ndr, NDR_ERR_STRING,
					      "BAD NBT NAME component");
		}
		len = ndr->data[*offset];
		if (len == 0) {
			*offset += 1;
			*max_offset = MAX(*max_offset, *offset);
			*component = NULL;
			return NDR_ERR_SUCCESS;
		}
		if ((len & 0xC0) == 0xC0) {
			/* its a label pointer */
			if (1 + *offset >= ndr->data_size) {
				return ndr_pull_error(ndr, NDR_ERR_STRING,
						      "BAD NBT NAME component");
			}
			*max_offset = MAX(*max_offset, *offset + 2);
			*offset = ((len&0x3F)<<8) | ndr->data[1 + *offset];
			*max_offset = MAX(*max_offset, *offset);
			loops++;
			continue;
		}
		if ((len & 0xC0) != 0) {
			/* its a reserved length field */
			return ndr_pull_error(ndr, NDR_ERR_STRING,
					      "BAD NBT NAME component");
		}
		if (*offset + len + 1 > ndr->data_size) {
			return ndr_pull_error(ndr, NDR_ERR_STRING,
					      "BAD NBT NAME component");
		}
		*component = (uint8_t*)talloc_strndup(
			ndr->current_mem_ctx,
			(const char *)&ndr->data[1 + *offset], len);
		NDR_ERR_HAVE_NO_MEMORY(*component);
		*offset += len + 1;
		*max_offset = MAX(*max_offset, *offset);
		return NDR_ERR_SUCCESS;
	}

	/* too many pointers */
	return ndr_pull_error(ndr, NDR_ERR_STRING, "BAD NBT NAME component");
}

/**
  pull a nbt_string from the wire
*/
_PUBLIC_ enum ndr_err_code ndr_pull_nbt_string(struct ndr_pull *ndr, int ndr_flags, const char **s)
{
	uint32_t offset = ndr->offset;
	uint32_t max_offset = offset;
	unsigned num_components;
	char *name;

	if (!(ndr_flags & NDR_SCALARS)) {
		return NDR_ERR_SUCCESS;
	}

	name = NULL;

	/* break up name into a list of components */
	for (num_components=0;num_components<MAX_COMPONENTS;num_components++) {
		uint8_t *component = NULL;
		NDR_CHECK(ndr_pull_component(ndr, &component, &offset, &max_offset));
		if (component == NULL) break;
		if (name) {
			name = talloc_asprintf_append_buffer(name, ".%s", component);
			NDR_ERR_HAVE_NO_MEMORY(name);
		} else {
			name = (char *)component;
		}
	}
	if (num_components == MAX_COMPONENTS) {
		return ndr_pull_error(ndr, NDR_ERR_STRING,
				      "BAD NBT NAME too many components");
	}
	if (num_components == 0) {
		name = talloc_strdup(ndr->current_mem_ctx, "");
		NDR_ERR_HAVE_NO_MEMORY(name);
	}

	(*s) = name;
	ndr->offset = max_offset;

	return NDR_ERR_SUCCESS;
}

/**
  push a nbt string to the wire
*/
_PUBLIC_ enum ndr_err_code ndr_push_nbt_string(struct ndr_push *ndr, int ndr_flags, const char *s)
{
	if (!(ndr_flags & NDR_SCALARS)) {
		return NDR_ERR_SUCCESS;
	}

	while (s && *s) {
		enum ndr_err_code ndr_err;
		char *compname;
		size_t complen;
		uint32_t offset;

		/* see if we have pushed the remaing string allready,
		 * if so we use a label pointer to this string
		 */
		ndr_err = ndr_token_retrieve_cmp_fn(&ndr->nbt_string_list, s, &offset, (comparison_fn_t)strcmp, false);
		if (NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
			uint8_t b[2];

			if (offset > 0x3FFF) {
				return ndr_push_error(ndr, NDR_ERR_STRING,
						      "offset for nbt string label pointer %u[%08X] > 0x00003FFF",
						      offset, offset);
			}

			b[0] = 0xC0 | (offset>>8);
			b[1] = (offset & 0xFF);

			return ndr_push_bytes(ndr, b, 2);
		}

		complen = strcspn(s, ".");

		/* we need to make sure the length fits into 6 bytes */
		if (complen > 0x3F) {
			return ndr_push_error(ndr, NDR_ERR_STRING,
					      "component length %u[%08X] > 0x0000003F",
					      (unsigned)complen, (unsigned)complen);
		}

		compname = talloc_asprintf(ndr, "%c%*.*s",
						(unsigned char)complen,
						(unsigned char)complen,
						(unsigned char)complen, s);
		NDR_ERR_HAVE_NO_MEMORY(compname);

		/* remember the current componemt + the rest of the string
		 * so it can be reused later
		 */
		NDR_CHECK(ndr_token_store(ndr, &ndr->nbt_string_list, s, ndr->offset));

		/* push just this component into the blob */
		NDR_CHECK(ndr_push_bytes(ndr, (const uint8_t *)compname, complen+1));
		talloc_free(compname);

		s += complen;
		if (*s == '.') s++;
	}

	/* if we reach the end of the string and have pushed the last component
	 * without using a label pointer, we need to terminate the string
	 */
	return ndr_push_bytes(ndr, (const uint8_t *)"", 1);
}


/* Manually modified to handle the dom_sid being optional based on if it is present or all zero */
enum ndr_err_code ndr_push_NETLOGON_SAM_LOGON_REQUEST(struct ndr_push *ndr, int ndr_flags, const struct NETLOGON_SAM_LOGON_REQUEST *r)
{
	if (ndr_flags & NDR_SCALARS) {
		NDR_CHECK(ndr_push_align(ndr, 4));
		NDR_CHECK(ndr_push_uint16(ndr, NDR_SCALARS, r->request_count));
		{
			uint32_t _flags_save_string = ndr->flags;
			ndr_set_flags(&ndr->flags, LIBNDR_FLAG_STR_NULLTERM);
			NDR_CHECK(ndr_push_string(ndr, NDR_SCALARS, r->computer_name));
			ndr->flags = _flags_save_string;
		}
		{
			uint32_t _flags_save_string = ndr->flags;
			ndr_set_flags(&ndr->flags, LIBNDR_FLAG_STR_NULLTERM);
			NDR_CHECK(ndr_push_string(ndr, NDR_SCALARS, r->user_name));
			ndr->flags = _flags_save_string;
		}
		{
			uint32_t _flags_save_string = ndr->flags;
			ndr_set_flags(&ndr->flags, LIBNDR_FLAG_STR_ASCII|LIBNDR_FLAG_STR_NULLTERM);
			NDR_CHECK(ndr_push_string(ndr, NDR_SCALARS, r->mailslot_name));
			ndr->flags = _flags_save_string;
		}
		NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, r->acct_control));
		NDR_CHECK(ndr_push_uint32(ndr, NDR_SCALARS, ndr_size_dom_sid0(&r->sid, ndr->flags)));
		if (ndr_size_dom_sid0(&r->sid, ndr->flags)) {
			struct ndr_push *_ndr_sid;
			uint32_t _flags_save_DATA_BLOB = ndr->flags;
			ndr->flags &= ~LIBNDR_FLAG_NOALIGN;
			ndr_set_flags(&ndr->flags, LIBNDR_FLAG_ALIGN4);
			NDR_CHECK(ndr_push_DATA_BLOB(ndr, NDR_SCALARS, r->_pad));
			ndr->flags = _flags_save_DATA_BLOB;
			NDR_CHECK(ndr_push_subcontext_start(ndr, &_ndr_sid, 0, ndr_size_dom_sid0(&r->sid, ndr->flags)));
			NDR_CHECK(ndr_push_dom_sid0(_ndr_sid, NDR_SCALARS|NDR_BUFFERS, &r->sid));
			NDR_CHECK(ndr_push_subcontext_end(ndr, _ndr_sid, 0, ndr_size_dom_sid0(&r->sid, ndr->flags)));
		}
		NDR_CHECK(ndr_push_netlogon_nt_version_flags(ndr, NDR_SCALARS, r->nt_version));
		NDR_CHECK(ndr_push_uint16(ndr, NDR_SCALARS, r->lmnt_token));
		NDR_CHECK(ndr_push_uint16(ndr, NDR_SCALARS, r->lm20_token));
	}
	if (ndr_flags & NDR_BUFFERS) {
	}
	return NDR_ERR_SUCCESS;
}

/* Manually modified to handle the dom_sid being optional based on if it is present (size is non-zero) or not */
enum ndr_err_code ndr_pull_NETLOGON_SAM_LOGON_REQUEST(struct ndr_pull *ndr, int ndr_flags, struct NETLOGON_SAM_LOGON_REQUEST *r)
{
	if (ndr_flags & NDR_SCALARS) {
		NDR_CHECK(ndr_pull_align(ndr, 4));
		NDR_CHECK(ndr_pull_uint16(ndr, NDR_SCALARS, &r->request_count));
		{
			uint32_t _flags_save_string = ndr->flags;
			ndr_set_flags(&ndr->flags, LIBNDR_FLAG_STR_NULLTERM);
			NDR_CHECK(ndr_pull_string(ndr, NDR_SCALARS, &r->computer_name));
			ndr->flags = _flags_save_string;
		}
		{
			uint32_t _flags_save_string = ndr->flags;
			ndr_set_flags(&ndr->flags, LIBNDR_FLAG_STR_NULLTERM);
			NDR_CHECK(ndr_pull_string(ndr, NDR_SCALARS, &r->user_name));
			ndr->flags = _flags_save_string;
		}
		{
			uint32_t _flags_save_string = ndr->flags;
			ndr_set_flags(&ndr->flags, LIBNDR_FLAG_STR_ASCII|LIBNDR_FLAG_STR_NULLTERM);
			NDR_CHECK(ndr_pull_string(ndr, NDR_SCALARS, &r->mailslot_name));
			ndr->flags = _flags_save_string;
		}
		NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->acct_control));
		NDR_CHECK(ndr_pull_uint32(ndr, NDR_SCALARS, &r->sid_size));
		if (r->sid_size) {
			uint32_t _flags_save_DATA_BLOB = ndr->flags;
			struct ndr_pull *_ndr_sid;
			ndr->flags &= ~LIBNDR_FLAG_NOALIGN;
			ndr_set_flags(&ndr->flags, LIBNDR_FLAG_ALIGN4);
			NDR_CHECK(ndr_pull_DATA_BLOB(ndr, NDR_SCALARS, &r->_pad));
			ndr->flags = _flags_save_DATA_BLOB;
			NDR_CHECK(ndr_pull_subcontext_start(ndr, &_ndr_sid, 0, r->sid_size));
			NDR_CHECK(ndr_pull_dom_sid0(_ndr_sid, NDR_SCALARS|NDR_BUFFERS, &r->sid));
			NDR_CHECK(ndr_pull_subcontext_end(ndr, _ndr_sid, 0, r->sid_size));
		} else {
			ZERO_STRUCT(r->sid);
		}
		NDR_CHECK(ndr_pull_netlogon_nt_version_flags(ndr, NDR_SCALARS, &r->nt_version));
		NDR_CHECK(ndr_pull_uint16(ndr, NDR_SCALARS, &r->lmnt_token));
		NDR_CHECK(ndr_pull_uint16(ndr, NDR_SCALARS, &r->lm20_token));
	}
	if (ndr_flags & NDR_BUFFERS) {
	}
	return NDR_ERR_SUCCESS;
}

/* Manually modified to only push some parts of the structure if certain flags are set */
enum ndr_err_code ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags(struct ndr_push *ndr, int ndr_flags, const struct NETLOGON_SAM_LOGON_RESPONSE_EX *r)
{
	{
		uint32_t _flags_save_STRUCT = ndr->flags;
		ndr_set_flags(&ndr->flags, LIBNDR_FLAG_NOALIGN);
		if (ndr_flags & NDR_SCALARS) {
			NDR_CHECK(ndr_push_align(ndr, 4));
			NDR_CHECK(ndr_push_netlogon_command(ndr, NDR_SCALARS, r->command));
			NDR_CHECK(ndr_push_uint16(ndr, NDR_SCALARS, r->sbz));
			NDR_CHECK(ndr_push_nbt_server_type(ndr, NDR_SCALARS, r->server_type));
			NDR_CHECK(ndr_push_GUID(ndr, NDR_SCALARS, &r->domain_uuid));
			NDR_CHECK(ndr_push_nbt_string(ndr, NDR_SCALARS, r->forest));
			NDR_CHECK(ndr_push_nbt_string(ndr, NDR_SCALARS, r->dns_domain));
			NDR_CHECK(ndr_push_nbt_string(ndr, NDR_SCALARS, r->pdc_dns_name));
			NDR_CHECK(ndr_push_nbt_string(ndr, NDR_SCALARS, r->domain_name));
			NDR_CHECK(ndr_push_nbt_string(ndr, NDR_SCALARS, r->pdc_name));
			NDR_CHECK(ndr_push_nbt_string(ndr, NDR_SCALARS, r->user_name));
			NDR_CHECK(ndr_push_nbt_string(ndr, NDR_SCALARS, r->server_site));
			NDR_CHECK(ndr_push_nbt_string(ndr, NDR_SCALARS, r->client_site));
			if (r->nt_version & NETLOGON_NT_VERSION_5EX_WITH_IP) {
				NDR_CHECK(ndr_push_uint8(ndr, NDR_SCALARS, ndr_size_nbt_sockaddr(&r->sockaddr, ndr->flags)));
				{
					struct ndr_push *_ndr_sockaddr;
					NDR_CHECK(ndr_push_subcontext_start(ndr, &_ndr_sockaddr, 0, ndr_size_nbt_sockaddr(&r->sockaddr, ndr->flags)));
					NDR_CHECK(ndr_push_nbt_sockaddr(_ndr_sockaddr, NDR_SCALARS|NDR_BUFFERS, &r->sockaddr));
					NDR_CHECK(ndr_push_subcontext_end(ndr, _ndr_sockaddr, 0, ndr_size_nbt_sockaddr(&r->sockaddr, ndr->flags)));
				}
			}
			if (r->nt_version & NETLOGON_NT_VERSION_WITH_CLOSEST_SITE) {
				NDR_CHECK(ndr_push_nbt_string(ndr, NDR_SCALARS, r->next_closest_site));
			}
			NDR_CHECK(ndr_push_netlogon_nt_version_flags(ndr, NDR_SCALARS, r->nt_version));
			NDR_CHECK(ndr_push_uint16(ndr, NDR_SCALARS, r->lmnt_token));
			NDR_CHECK(ndr_push_uint16(ndr, NDR_SCALARS, r->lm20_token));
		}
		if (ndr_flags & NDR_BUFFERS) {
			NDR_CHECK(ndr_push_GUID(ndr, NDR_BUFFERS, &r->domain_uuid));
		}
		ndr->flags = _flags_save_STRUCT;
	}
	return NDR_ERR_SUCCESS;
}

/* Manually modified to only pull some parts of the structure if certain flags provided */
enum ndr_err_code ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags(struct ndr_pull *ndr, int ndr_flags, struct NETLOGON_SAM_LOGON_RESPONSE_EX *r,
								     uint32_t nt_version_flags)
{
	{
		uint32_t _flags_save_STRUCT = ndr->flags;
		ZERO_STRUCTP(r);
		ndr_set_flags(&ndr->flags, LIBNDR_FLAG_NOALIGN);
		if (ndr_flags & NDR_SCALARS) {
			NDR_CHECK(ndr_pull_align(ndr, 4));
			NDR_CHECK(ndr_pull_netlogon_command(ndr, NDR_SCALARS, &r->command));
			NDR_CHECK(ndr_pull_uint16(ndr, NDR_SCALARS, &r->sbz));
			NDR_CHECK(ndr_pull_nbt_server_type(ndr, NDR_SCALARS, &r->server_type));
			NDR_CHECK(ndr_pull_GUID(ndr, NDR_SCALARS, &r->domain_uuid));
			NDR_CHECK(ndr_pull_nbt_string(ndr, NDR_SCALARS, &r->forest));
			NDR_CHECK(ndr_pull_nbt_string(ndr, NDR_SCALARS, &r->dns_domain));
			NDR_CHECK(ndr_pull_nbt_string(ndr, NDR_SCALARS, &r->pdc_dns_name));
			NDR_CHECK(ndr_pull_nbt_string(ndr, NDR_SCALARS, &r->domain_name));
			NDR_CHECK(ndr_pull_nbt_string(ndr, NDR_SCALARS, &r->pdc_name));
			NDR_CHECK(ndr_pull_nbt_string(ndr, NDR_SCALARS, &r->user_name));
			NDR_CHECK(ndr_pull_nbt_string(ndr, NDR_SCALARS, &r->server_site));
			NDR_CHECK(ndr_pull_nbt_string(ndr, NDR_SCALARS, &r->client_site));
			if (nt_version_flags & NETLOGON_NT_VERSION_5EX_WITH_IP) {
				NDR_CHECK(ndr_pull_uint8(ndr, NDR_SCALARS, &r->sockaddr_size));
				{
					struct ndr_pull *_ndr_sockaddr;
					NDR_CHECK(ndr_pull_subcontext_start(ndr, &_ndr_sockaddr, 0, r->sockaddr_size));
					NDR_CHECK(ndr_pull_nbt_sockaddr(_ndr_sockaddr, NDR_SCALARS|NDR_BUFFERS, &r->sockaddr));
					NDR_CHECK(ndr_pull_subcontext_end(ndr, _ndr_sockaddr, 0, r->sockaddr_size));
				}
			}
			if (nt_version_flags & NETLOGON_NT_VERSION_WITH_CLOSEST_SITE) {
				NDR_CHECK(ndr_pull_nbt_string(ndr, NDR_SCALARS, &r->next_closest_site));
			}
			NDR_CHECK(ndr_pull_netlogon_nt_version_flags(ndr, NDR_SCALARS, &r->nt_version));
			if (r->nt_version != nt_version_flags) {
				return NDR_ERR_VALIDATE;
			}
			NDR_CHECK(ndr_pull_uint16(ndr, NDR_SCALARS, &r->lmnt_token));
			NDR_CHECK(ndr_pull_uint16(ndr, NDR_SCALARS, &r->lm20_token));
		}
		if (ndr_flags & NDR_BUFFERS) {
			NDR_CHECK(ndr_pull_GUID(ndr, NDR_BUFFERS, &r->domain_uuid));
		}
		ndr->flags = _flags_save_STRUCT;
	}
	return NDR_ERR_SUCCESS;
}

_PUBLIC_ enum ndr_err_code ndr_push_netlogon_samlogon_response(struct ndr_push *ndr, int ndr_flags, const struct netlogon_samlogon_response *r)
{
	if (r->ntver == NETLOGON_NT_VERSION_1) {
		NDR_CHECK(ndr_push_NETLOGON_SAM_LOGON_RESPONSE_NT40(
			ndr, ndr_flags, &r->data.nt4));
	} else if (r->ntver & NETLOGON_NT_VERSION_5EX) {
		NDR_CHECK(ndr_push_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags(
			ndr, ndr_flags, &r->data.nt5_ex));
	} else if (r->ntver & NETLOGON_NT_VERSION_5) {
		NDR_CHECK(ndr_push_NETLOGON_SAM_LOGON_RESPONSE(
			ndr, ndr_flags, &r->data.nt5));
	} else {
		return NDR_ERR_BAD_SWITCH;
	}

	return NDR_ERR_SUCCESS;
}

_PUBLIC_ enum ndr_err_code ndr_pull_netlogon_samlogon_response(struct ndr_pull *ndr, int ndr_flags, struct netlogon_samlogon_response *r)
{
	if (ndr->data_size < 8) {
		return NDR_ERR_BUFSIZE;
	}

	/* lmnttoken */
	if (SVAL(ndr->data, ndr->data_size - 4) != 0xffff) {
		return NDR_ERR_TOKEN;
	}
	/* lm20token */
	if (SVAL(ndr->data, ndr->data_size - 2) != 0xffff) {
		return NDR_ERR_TOKEN;
	}

	r->ntver = IVAL(ndr->data, ndr->data_size - 8);

	if (r->ntver == NETLOGON_NT_VERSION_1) {
		NDR_CHECK(ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_NT40(
			ndr, ndr_flags, &r->data.nt4));
	} else if (r->ntver & NETLOGON_NT_VERSION_5EX) {
		NDR_CHECK(ndr_pull_NETLOGON_SAM_LOGON_RESPONSE_EX_with_flags(
			ndr, ndr_flags, &r->data.nt5_ex, r->ntver));
		if (ndr->offset < ndr->data_size) {
			return ndr_pull_error(ndr, NDR_ERR_UNREAD_BYTES,
						 "not all bytes consumed ofs[%u] size[%u]",
						 ndr->offset, ndr->data_size);
		}
	} else if (r->ntver & NETLOGON_NT_VERSION_5) {
		NDR_CHECK(ndr_pull_NETLOGON_SAM_LOGON_RESPONSE(
			ndr, ndr_flags, &r->data.nt5));
	} else {
		return NDR_ERR_BAD_SWITCH;
	}

	return NDR_ERR_SUCCESS;
}