/* 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 . */ #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 (!NT_STATUS_IS_OK(status)) { 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_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_unix_extensions_version_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_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 (!NT_STATUS_IS_OK(status)) { 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; 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((char *)rdata); *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; } clistr_pull_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; 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); 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 = 62*1024; 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 || rdata + num_rdata < 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); 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++) { if (p + 8 > rdata + num_rdata) { tevent_req_nterror(req, NT_STATUS_INVALID_NETWORK_RESPONSE); return; } 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; } 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; }