Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 815 insertions, 0 deletions

diff --git a/source3/libsmb/clifsinfo.c b/source3/libsmb/clifsinfo.c
new file mode 100644
index 0000000..cc95f47
--- /dev/null
+++ b/source3/libsmb/clifsinfo.c
@@ -0,0 +1,815 @@
+/*
+   Unix SMB/CIFS implementation.
+   FS info functions
+   Copyright (C) Stefan (metze) Metzmacher	2003
+   Copyright (C) Jeremy Allison 2007
+   Copyright (C) Andrew Bartlett 2011
+
+   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 "libsmb/libsmb.h"
+#include "../lib/util/tevent_ntstatus.h"
+#include "async_smb.h"
+#include "trans2.h"
+#include "auth_generic.h"
+#include "auth/gensec/gensec.h"
+#include "../libcli/smb/smbXcli_base.h"
+#include "auth/credentials/credentials.h"
+#include "../librpc/gen_ndr/ndr_security.h"
+
+/****************************************************************************
+ Get UNIX extensions version info.
+****************************************************************************/
+
+struct cli_unix_extensions_version_state {
+	struct cli_state *cli;
+	uint16_t setup[1];
+	uint8_t param[2];
+	uint16_t major, minor;
+	uint32_t caplow, caphigh;
+};
+
+static void cli_unix_extensions_version_done(struct tevent_req *subreq);
+
+struct tevent_req *cli_unix_extensions_version_send(TALLOC_CTX *mem_ctx,
+						    struct tevent_context *ev,
+						    struct cli_state *cli)
+{
+	struct tevent_req *req, *subreq;
+	struct cli_unix_extensions_version_state *state;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct cli_unix_extensions_version_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	state->cli = cli;
+	SSVAL(state->setup, 0, TRANSACT2_QFSINFO);
+	SSVAL(state->param, 0, SMB_QUERY_CIFS_UNIX_INFO);
+
+	subreq = cli_trans_send(state, ev, cli, 0, SMBtrans2,
+				NULL, 0, 0, 0,
+				state->setup, 1, 0,
+				state->param, 2, 0,
+				NULL, 0, 560);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, cli_unix_extensions_version_done, req);
+	return req;
+}
+
+static void cli_unix_extensions_version_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct cli_unix_extensions_version_state *state = tevent_req_data(
+		req, struct cli_unix_extensions_version_state);
+	uint8_t *data;
+	uint32_t num_data;
+	NTSTATUS status;
+
+	status = cli_trans_recv(subreq, state, NULL, NULL, 0, NULL,
+				NULL, 0, NULL, &data, 12, &num_data);
+	TALLOC_FREE(subreq);
+	if (tevent_req_nterror(req, status)) {
+		return;
+	}
+
+	state->major = SVAL(data, 0);
+	state->minor = SVAL(data, 2);
+	state->caplow = IVAL(data, 4);
+	state->caphigh = IVAL(data, 8);
+	TALLOC_FREE(data);
+	tevent_req_done(req);
+}
+
+NTSTATUS cli_unix_extensions_version_recv(struct tevent_req *req,
+					  uint16_t *pmajor, uint16_t *pminor,
+					  uint32_t *pcaplow,
+					  uint32_t *pcaphigh)
+{
+	struct cli_unix_extensions_version_state *state = tevent_req_data(
+		req, struct cli_unix_extensions_version_state);
+	NTSTATUS status;
+
+	if (tevent_req_is_nterror(req, &status)) {
+		return status;
+	}
+	*pmajor = state->major;
+	*pminor = state->minor;
+	*pcaplow = state->caplow;
+	*pcaphigh = state->caphigh;
+	state->cli->server_posix_capabilities = *pcaplow;
+	return NT_STATUS_OK;
+}
+
+NTSTATUS cli_unix_extensions_version(struct cli_state *cli, uint16_t *pmajor,
+				     uint16_t *pminor, uint32_t *pcaplow,
+				     uint32_t *pcaphigh)
+{
+	TALLOC_CTX *frame = talloc_stackframe();
+	struct tevent_context *ev;
+	struct tevent_req *req;
+	NTSTATUS status = NT_STATUS_NO_MEMORY;
+
+	if (smbXcli_conn_has_async_calls(cli->conn)) {
+		/*
+		 * Can't use sync call while an async call is in flight
+		 */
+		status = NT_STATUS_INVALID_PARAMETER;
+		goto fail;
+	}
+	ev = samba_tevent_context_init(frame);
+	if (ev == NULL) {
+		goto fail;
+	}
+	req = cli_unix_extensions_version_send(frame, ev, cli);
+	if (req == NULL) {
+		goto fail;
+	}
+	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+		goto fail;
+	}
+	status = cli_unix_extensions_version_recv(req, pmajor, pminor, pcaplow,
+						  pcaphigh);
+ fail:
+	TALLOC_FREE(frame);
+	return status;
+}
+
+/****************************************************************************
+ Set UNIX extensions capabilities.
+****************************************************************************/
+
+struct cli_set_unix_extensions_capabilities_state {
+	struct cli_state *cli;
+	uint16_t setup[1];
+	uint8_t param[4];
+	uint8_t data[12];
+};
+
+static void cli_set_unix_extensions_capabilities_done(
+	struct tevent_req *subreq);
+
+struct tevent_req *cli_set_unix_extensions_capabilities_send(
+	TALLOC_CTX *mem_ctx, struct tevent_context *ev, struct cli_state *cli,
+	uint16_t major, uint16_t minor, uint32_t caplow, uint32_t caphigh)
+{
+	struct tevent_req *req, *subreq;
+	struct cli_set_unix_extensions_capabilities_state *state;
+
+	req = tevent_req_create(
+		mem_ctx, &state,
+		struct cli_set_unix_extensions_capabilities_state);
+	if (req == NULL) {
+		return NULL;
+	}
+
+	state->cli = cli;
+	SSVAL(state->setup+0, 0, TRANSACT2_SETFSINFO);
+
+	SSVAL(state->param, 0, 0);
+	SSVAL(state->param, 2, SMB_SET_CIFS_UNIX_INFO);
+
+	SSVAL(state->data, 0, major);
+	SSVAL(state->data, 2, minor);
+	SIVAL(state->data, 4, caplow);
+	SIVAL(state->data, 8, caphigh);
+
+	subreq = cli_trans_send(state, ev, cli, 0, SMBtrans2,
+				NULL, 0, 0, 0,
+				state->setup, 1, 0,
+				state->param, 4, 0,
+				state->data, 12, 560);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(
+		subreq, cli_set_unix_extensions_capabilities_done, req);
+	return req;
+}
+
+static void cli_set_unix_extensions_capabilities_done(
+	struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct cli_set_unix_extensions_capabilities_state *state = tevent_req_data(
+		req, struct cli_set_unix_extensions_capabilities_state);
+
+	NTSTATUS status = cli_trans_recv(subreq, NULL, NULL, NULL, 0, NULL,
+					 NULL, 0, NULL, NULL, 0, NULL);
+	if (NT_STATUS_IS_OK(status)) {
+		state->cli->requested_posix_capabilities = IVAL(state->data, 4);
+	}
+	tevent_req_simple_finish_ntstatus(subreq, status);
+}
+
+NTSTATUS cli_set_unix_extensions_capabilities_recv(struct tevent_req *req)
+{
+	return tevent_req_simple_recv_ntstatus(req);
+}
+
+NTSTATUS cli_set_unix_extensions_capabilities(struct cli_state *cli,
+					      uint16_t major, uint16_t minor,
+					      uint32_t caplow, uint32_t caphigh)
+{
+	struct tevent_context *ev;
+	struct tevent_req *req;
+	NTSTATUS status = NT_STATUS_NO_MEMORY;
+
+	if (smbXcli_conn_has_async_calls(cli->conn)) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+	ev = samba_tevent_context_init(talloc_tos());
+	if (ev == NULL) {
+		goto fail;
+	}
+	req = cli_set_unix_extensions_capabilities_send(
+		ev, ev, cli, major, minor, caplow, caphigh);
+	if (req == NULL) {
+		goto fail;
+	}
+	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+		goto fail;
+	}
+	status = cli_set_unix_extensions_capabilities_recv(req);
+fail:
+	TALLOC_FREE(ev);
+	return status;
+}
+
+struct cli_get_fs_attr_info_state {
+	uint16_t setup[1];
+	uint8_t param[2];
+	uint32_t fs_attr;
+};
+
+static void cli_get_fs_attr_info_done(struct tevent_req *subreq);
+
+struct tevent_req *cli_get_fs_attr_info_send(TALLOC_CTX *mem_ctx,
+					     struct tevent_context *ev,
+					     struct cli_state *cli)
+{
+	struct tevent_req *subreq, *req;
+	struct cli_get_fs_attr_info_state *state;
+
+	req = tevent_req_create(mem_ctx, &state,
+				struct cli_get_fs_attr_info_state);
+	if (req == NULL) {
+		return NULL;
+	}
+	SSVAL(state->setup+0, 0, TRANSACT2_QFSINFO);
+	SSVAL(state->param+0, 0, SMB_QUERY_FS_ATTRIBUTE_INFO);
+
+	subreq = cli_trans_send(state, ev, cli, 0, SMBtrans2,
+				NULL, 0, 0, 0,
+				state->setup, 1, 0,
+				state->param, 2, 0,
+				NULL, 0, 560);
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, cli_get_fs_attr_info_done, req);
+	return req;
+}
+
+static void cli_get_fs_attr_info_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+		subreq, struct tevent_req);
+	struct cli_get_fs_attr_info_state *state = tevent_req_data(
+		req, struct cli_get_fs_attr_info_state);
+	uint8_t *data;
+	uint32_t num_data;
+	NTSTATUS status;
+
+	status = cli_trans_recv(subreq, talloc_tos(), NULL, NULL, 0, NULL,
+				NULL, 0, NULL, &data, 12, &num_data);
+	TALLOC_FREE(subreq);
+	if (tevent_req_nterror(req, status)) {
+		return;
+	}
+	state->fs_attr = IVAL(data, 0);
+	TALLOC_FREE(data);
+	tevent_req_done(req);
+}
+
+NTSTATUS cli_get_fs_attr_info_recv(struct tevent_req *req, uint32_t *fs_attr)
+{
+	struct cli_get_fs_attr_info_state *state = tevent_req_data(
+		req, struct cli_get_fs_attr_info_state);
+	NTSTATUS status;
+
+	if (tevent_req_is_nterror(req, &status)) {
+		return status;
+	}
+	*fs_attr = state->fs_attr;
+	return NT_STATUS_OK;
+}
+
+NTSTATUS cli_get_fs_attr_info(struct cli_state *cli, uint32_t *fs_attr)
+{
+	struct tevent_context *ev;
+	struct tevent_req *req;
+	NTSTATUS status = NT_STATUS_NO_MEMORY;
+
+	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
+		return cli_smb2_get_fs_attr_info(cli, fs_attr);
+	}
+
+	if (smbXcli_conn_has_async_calls(cli->conn)) {
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+	ev = samba_tevent_context_init(talloc_tos());
+	if (ev == NULL) {
+		goto fail;
+	}
+	req = cli_get_fs_attr_info_send(ev, ev, cli);
+	if (req == NULL) {
+		goto fail;
+	}
+	if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+		goto fail;
+	}
+	status = cli_get_fs_attr_info_recv(req, fs_attr);
+fail:
+	TALLOC_FREE(ev);
+	return status;
+}
+
+NTSTATUS cli_get_fs_volume_info(struct cli_state *cli,
+				TALLOC_CTX *mem_ctx,
+				char **_volume_name,
+				uint32_t *pserial_number,
+				time_t *pdate)
+{
+	NTSTATUS status;
+	uint16_t recv_flags2;
+	uint16_t setup[1];
+	uint8_t param[2];
+	uint8_t *rdata;
+	uint32_t rdata_count;
+	unsigned int nlen;
+	char *volume_name = NULL;
+
+	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
+		return cli_smb2_get_fs_volume_info(cli,
+						mem_ctx,
+						_volume_name,
+						pserial_number,
+						pdate);
+	}
+
+	SSVAL(setup, 0, TRANSACT2_QFSINFO);
+	SSVAL(param,0,SMB_QUERY_FS_VOLUME_INFO);
+
+	status = cli_trans(talloc_tos(), cli, SMBtrans2,
+			   NULL, 0, 0, 0,
+			   setup, 1, 0,
+			   param, 2, 0,
+			   NULL, 0, 560,
+			   &recv_flags2,
+			   NULL, 0, NULL,
+			   NULL, 0, NULL,
+			   &rdata, 18, &rdata_count);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (pdate) {
+		struct timespec ts;
+		ts = interpret_long_date(BVAL(rdata, 0));
+		*pdate = ts.tv_sec;
+	}
+	if (pserial_number) {
+		*pserial_number = IVAL(rdata,8);
+	}
+	nlen = IVAL(rdata,12);
+	if (nlen > (rdata_count - 18)) {
+		TALLOC_FREE(rdata);
+		return NT_STATUS_INVALID_NETWORK_RESPONSE;
+	}
+
+	pull_string_talloc(mem_ctx,
+			   (const char *)rdata,
+			   recv_flags2,
+			   &volume_name,
+			   rdata + 18,
+			   nlen, STR_UNICODE);
+	if (volume_name == NULL) {
+		status = map_nt_error_from_unix(errno);
+		TALLOC_FREE(rdata);
+		return status;
+	}
+
+	/* todo: but not yet needed
+	 *       return the other stuff
+	 */
+
+	*_volume_name = volume_name;
+	TALLOC_FREE(rdata);
+	return NT_STATUS_OK;
+}
+
+NTSTATUS cli_get_fs_full_size_info(struct cli_state *cli,
+				   uint64_t *total_allocation_units,
+				   uint64_t *caller_allocation_units,
+				   uint64_t *actual_allocation_units,
+				   uint64_t *sectors_per_allocation_unit,
+				   uint64_t *bytes_per_sector)
+{
+	uint16_t setup[1];
+	uint8_t param[2];
+	uint8_t *rdata = NULL;
+	uint32_t rdata_count;
+	NTSTATUS status;
+
+	if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
+		return cli_smb2_get_fs_full_size_info(cli,
+						total_allocation_units,
+						caller_allocation_units,
+						actual_allocation_units,
+						sectors_per_allocation_unit,
+						bytes_per_sector);
+	}
+
+	SSVAL(setup, 0, TRANSACT2_QFSINFO);
+	SSVAL(param, 0, SMB_FS_FULL_SIZE_INFORMATION);
+
+	status = cli_trans(talloc_tos(), cli, SMBtrans2,
+			   NULL, 0, 0, 0,
+			   setup, 1, 0, /* setup */
+			   param, 2, 0,	 /* param */
+			   NULL, 0, 560, /* data */
+			   NULL,
+			   NULL, 0, NULL, /* rsetup */
+			   NULL, 0, NULL, /* rparam */
+			   &rdata, 32, &rdata_count);  /* rdata */
+	if (!NT_STATUS_IS_OK(status)) {
+		goto fail;
+	}
+
+	if (total_allocation_units) {
+                *total_allocation_units = BIG_UINT(rdata, 0);
+	}
+	if (caller_allocation_units) {
+		*caller_allocation_units = BIG_UINT(rdata,8);
+	}
+	if (actual_allocation_units) {
+		*actual_allocation_units = BIG_UINT(rdata,16);
+	}
+	if (sectors_per_allocation_unit) {
+		*sectors_per_allocation_unit = IVAL(rdata,24);
+	}
+	if (bytes_per_sector) {
+		*bytes_per_sector = IVAL(rdata,28);
+	}
+
+fail:
+	TALLOC_FREE(rdata);
+	return status;
+}
+
+NTSTATUS cli_get_posix_fs_info(struct cli_state *cli,
+			       uint32_t *optimal_transfer_size,
+			       uint32_t *block_size,
+			       uint64_t *total_blocks,
+			       uint64_t *blocks_available,
+			       uint64_t *user_blocks_available,
+			       uint64_t *total_file_nodes,
+			       uint64_t *free_file_nodes,
+			       uint64_t *fs_identifier)
+{
+	uint16_t setup[1];
+	uint8_t param[2];
+	uint8_t *rdata = NULL;
+	uint32_t rdata_count;
+	NTSTATUS status;
+
+	SSVAL(setup, 0, TRANSACT2_QFSINFO);
+	SSVAL(param,0,SMB_QUERY_POSIX_FS_INFO);
+
+	status = cli_trans(talloc_tos(), cli, SMBtrans2, NULL, 0, 0, 0,
+			   setup, 1, 0,
+			   param, 2, 0,
+			   NULL, 0, 560,
+			   NULL,
+			   NULL, 0, NULL, /* rsetup */
+			   NULL, 0, NULL, /* rparam */
+			   &rdata, 56, &rdata_count);
+	if (!NT_STATUS_IS_OK(status)) {
+		return status;
+	}
+
+	if (optimal_transfer_size) {
+                *optimal_transfer_size = IVAL(rdata, 0);
+	}
+	if (block_size) {
+		*block_size = IVAL(rdata,4);
+	}
+	if (total_blocks) {
+		*total_blocks = BIG_UINT(rdata,8);
+	}
+	if (blocks_available) {
+		*blocks_available = BIG_UINT(rdata,16);
+	}
+	if (user_blocks_available) {
+		*user_blocks_available = BIG_UINT(rdata,24);
+	}
+	if (total_file_nodes) {
+		*total_file_nodes = BIG_UINT(rdata,32);
+	}
+	if (free_file_nodes) {
+		*free_file_nodes = BIG_UINT(rdata,40);
+	}
+	if (fs_identifier) {
+		*fs_identifier = BIG_UINT(rdata,48);
+	}
+	return NT_STATUS_OK;
+}
+
+/****************************************************************************
+ Do a UNIX extensions SMB_QUERY_POSIX_WHOAMI call.
+****************************************************************************/
+
+struct posix_whoami_state {
+	uint16_t setup[1];
+	uint8_t param[2];
+	uint32_t max_rdata;
+	bool guest;
+	uint64_t uid;
+	uint64_t gid;
+	uint32_t num_gids;
+	uint64_t *gids;
+	uint32_t num_sids;
+	struct dom_sid *sids;
+};
+
+static void cli_posix_whoami_done(struct tevent_req *subreq);
+
+static const uint32_t posix_whoami_max_rdata = 62*1024;
+
+struct tevent_req *cli_posix_whoami_send(TALLOC_CTX *mem_ctx,
+					struct tevent_context *ev,
+					struct cli_state *cli)
+{
+	struct tevent_req *req = NULL, *subreq = NULL;
+	struct posix_whoami_state *state = NULL;
+
+	req = tevent_req_create(mem_ctx, &state, struct posix_whoami_state);
+	if (req == NULL) {
+		return NULL;
+	}
+
+	/* Setup setup word. */
+	SSVAL(state->setup, 0, TRANSACT2_QFSINFO);
+	SSVAL(state->param, 0, SMB_QUERY_POSIX_WHOAMI);
+
+	state->max_rdata = posix_whoami_max_rdata;
+
+	subreq = cli_trans_send(state,                  /* mem ctx. */
+				ev,                     /* event ctx. */
+				cli,                    /* cli_state. */
+				0,			/* additional_flags2 */
+				SMBtrans2,              /* cmd. */
+				NULL,                   /* pipe name. */
+				-1,                     /* fid. */
+				0,                      /* function. */
+				0,                      /* flags. */
+				state->setup,           /* setup. */
+				1,                      /* num setup uint16_t words. */
+				0,                      /* max returned setup. */
+				state->param,           /* param. */
+				2,                      /* num param. */
+				0,                      /* max returned param. */
+				NULL,	                /* data. */
+				0,                      /* num data. */
+				state->max_rdata);      /* max returned data. */
+
+	if (tevent_req_nomem(subreq, req)) {
+		return tevent_req_post(req, ev);
+	}
+	tevent_req_set_callback(subreq, cli_posix_whoami_done, req);
+	return req;
+}
+
+static void cli_posix_whoami_done(struct tevent_req *subreq)
+{
+	struct tevent_req *req = tevent_req_callback_data(
+			subreq, struct tevent_req);
+	struct posix_whoami_state *state = tevent_req_data(
+			req, struct posix_whoami_state);
+	uint8_t *rdata = NULL;
+	uint8_t *p = NULL;
+	uint32_t num_rdata = 0;
+	uint32_t i;
+	NTSTATUS status;
+
+	status = cli_trans_recv(subreq,
+				state,
+				NULL,
+				NULL,
+				0,
+				NULL,
+                                NULL,
+				0,
+				NULL,
+				&rdata,
+				40,
+				&num_rdata);
+	TALLOC_FREE(subreq);
+	if (tevent_req_nterror(req, status)) {
+		return;
+	}
+
+	/*
+	 * Not strictly needed - cli_trans_recv()
+	 * will ensure at least 40 bytes here. Added
+	 * as more of a reminder to be careful when
+	 * parsing network packets in C.
+	 */
+
+	if (num_rdata < 40 || num_rdata > posix_whoami_max_rdata) {
+		tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE);
+		return;
+	}
+
+	state->guest = (IVAL(rdata, 0) & SMB_WHOAMI_GUEST);
+	state->uid = BVAL(rdata, 8);
+	state->gid = BVAL(rdata, 16);
+	state->num_gids = IVAL(rdata, 24);
+	state->num_sids = IVAL(rdata, 28);
+
+	/* Ensure the gid array doesn't overflow */
+	if (state->num_gids > (num_rdata - 40) / sizeof(uint64_t)) {
+		tevent_req_nterror(req,
+			NT_STATUS_INVALID_NETWORK_RESPONSE);
+		return;
+	}
+
+	state->gids = talloc_array(state, uint64_t, state->num_gids);
+	if (tevent_req_nomem(state->gids, req)) {
+		return;
+	}
+	state->sids = talloc_array(state, struct dom_sid, state->num_sids);
+	if (tevent_req_nomem(state->sids, req)) {
+		return;
+	}
+
+	p = rdata + 40;
+
+	for (i = 0; i < state->num_gids; i++) {
+		state->gids[i] = BVAL(p, 0);
+		p += 8;
+	}
+
+	num_rdata -= (p - rdata);
+
+	for (i = 0; i < state->num_sids; i++) {
+		size_t sid_size;
+		DATA_BLOB in = data_blob_const(p, num_rdata);
+		enum ndr_err_code ndr_err;
+
+		ndr_err = ndr_pull_struct_blob(&in,
+				state,
+				&state->sids[i],
+				(ndr_pull_flags_fn_t)ndr_pull_dom_sid);
+		if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
+			tevent_req_nterror(req,
+				NT_STATUS_INVALID_NETWORK_RESPONSE);
+			return;
+		}
+
+		sid_size = ndr_size_dom_sid(&state->sids[i], 0);
+
+		if (sid_size > num_rdata) {
+			tevent_req_nterror(req,
+				NT_STATUS_INVALID_NETWORK_RESPONSE);
+			return;
+		}
+
+		p += sid_size;
+		num_rdata -= sid_size;
+	}
+
+	if (num_rdata != 0) {
+		tevent_req_nterror(req,
+			NT_STATUS_INVALID_NETWORK_RESPONSE);
+		return;
+	}
+
+	tevent_req_done(req);
+}
+
+NTSTATUS cli_posix_whoami_recv(struct tevent_req *req,
+			TALLOC_CTX *mem_ctx,
+			uint64_t *puid,
+			uint64_t *pgid,
+			uint32_t *pnum_gids,
+			uint64_t **pgids,
+			uint32_t *pnum_sids,
+			struct dom_sid **psids,
+			bool *pguest)
+{
+	NTSTATUS status;
+	struct posix_whoami_state *state = tevent_req_data(
+			req, struct posix_whoami_state);
+
+	if (tevent_req_is_nterror(req, &status)) {
+		return status;
+	}
+
+	if (puid) {
+		*puid = state->uid;
+	}
+	if (pgid) {
+		*pgid = state->gid;
+	}
+	if (pnum_gids) {
+		*pnum_gids = state->num_gids;
+	}
+	if (pgids) {
+		*pgids = talloc_move(mem_ctx, &state->gids);
+	}
+	if (pnum_sids) {
+		*pnum_sids = state->num_sids;
+	}
+	if (psids) {
+		*psids = talloc_move(mem_ctx, &state->sids);
+	}
+	if (pguest) {
+		*pguest = state->guest;
+	}
+	return NT_STATUS_OK;
+}
+
+NTSTATUS cli_posix_whoami(struct cli_state *cli,
+			TALLOC_CTX *mem_ctx,
+			uint64_t *puid,
+			uint64_t *pgid,
+			uint32_t *num_gids,
+			uint64_t **gids,
+			uint32_t *num_sids,
+			struct dom_sid **sids,
+			bool *pguest)
+{
+        TALLOC_CTX *frame = talloc_stackframe();
+        struct tevent_context *ev = NULL;
+        struct tevent_req *req = NULL;
+        NTSTATUS status = NT_STATUS_OK;
+
+        if (smbXcli_conn_has_async_calls(cli->conn)) {
+                /*
+                 * Can't use sync call while an async call is in flight
+                 */
+                status = NT_STATUS_INVALID_PARAMETER;
+                goto fail;
+        }
+
+        ev = samba_tevent_context_init(frame);
+        if (ev == NULL) {
+                status = NT_STATUS_NO_MEMORY;
+                goto fail;
+        }
+
+        req = cli_posix_whoami_send(frame,
+                                ev,
+                                cli);
+        if (req == NULL) {
+                status = NT_STATUS_NO_MEMORY;
+                goto fail;
+        }
+
+        if (!tevent_req_poll_ntstatus(req, ev, &status)) {
+                goto fail;
+        }
+
+        status = cli_posix_whoami_recv(req,
+			mem_ctx,
+			puid,
+			pgid,
+			num_gids,
+			gids,
+			num_sids,
+			sids,
+			pguest);
+
+ fail:
+	TALLOC_FREE(frame);
+	return status;
+}