NTSTATUS cli_query_security_descriptor(struct cli_state *cli,
uint16_t fnum,
uint32_t sec_info,
TALLOC_CTX *mem_ctx,
struct security_descriptor **sd)
{
uint8_t param[8];
uint8_t *rdata=NULL;
uint32_t rdata_count=0;
NTSTATUS status;
struct security_descriptor *lsd;
if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
return cli_smb2_query_security_descriptor(cli,
fnum,
sec_info,
mem_ctx,
sd);
}
SIVAL(param, 0, fnum);
SIVAL(param, 4, sec_info);
status = cli_trans(talloc_tos(), cli, SMBnttrans,
NULL, -1, /* name, fid */
NT_TRANSACT_QUERY_SECURITY_DESC, 0, /* function, flags */
NULL, 0, 0, /* setup, length, max */
param, 8, 4, /* param, length, max */
NULL, 0, 0x10000, /* data, length, max */
NULL, /* recv_flags2 */
NULL, 0, NULL, /* rsetup, length */
NULL, 0, NULL,
&rdata, 0, &rdata_count);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("NT_TRANSACT_QUERY_SECURITY_DESC failed: %s\n",
nt_errstr(status)));
goto cleanup;
}
status = unmarshall_sec_desc(mem_ctx, (uint8 *)rdata, rdata_count,
&lsd);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("unmarshall_sec_desc failed: %s\n",
nt_errstr(status)));
goto cleanup;
}
if (sd != NULL) {
*sd = lsd;
} else {
TALLOC_FREE(lsd);
}
cleanup:
TALLOC_FREE(rdata);
return status;
}
NTSTATUS cli_cm_force_encryption(struct cli_state *c,
const char *username,
const char *password,
const char *domain,
const char *sharename)
{
NTSTATUS status;
if (smbXcli_conn_protocol(c->conn) >= PROTOCOL_SMB2_02) {
status = smb2cli_session_encryption_on(c->smb2.session);
if (NT_STATUS_EQUAL(status,NT_STATUS_NOT_SUPPORTED)) {
d_printf("Encryption required and "
"server doesn't support "
"SMB3 encryption - failing connect\n");
} else if (!NT_STATUS_IS_OK(status)) {
d_printf("Encryption required and "
"setup failed with error %s.\n",
nt_errstr(status));
}
return status;
}
status = cli_force_encryption(c,
username,
password,
domain);
if (NT_STATUS_EQUAL(status,NT_STATUS_NOT_SUPPORTED)) {
d_printf("Encryption required and "
"server that doesn't support "
"UNIX extensions - failing connect\n");
} else if (NT_STATUS_EQUAL(status,NT_STATUS_UNKNOWN_REVISION)) {
d_printf("Encryption required and "
"can't get UNIX CIFS extensions "
"version from server.\n");
} else if (NT_STATUS_EQUAL(status,NT_STATUS_UNSUPPORTED_COMPRESSION)) {
d_printf("Encryption required and "
"share %s doesn't support "
"encryption.\n", sharename);
} else if (!NT_STATUS_IS_OK(status)) {
d_printf("Encryption required and "
"setup failed with error %s.\n",
nt_errstr(status));
}
return status;
}
/****************************************************************************
set the security descriptor for a open file
****************************************************************************/
NTSTATUS cli_set_security_descriptor(struct cli_state *cli,
uint16_t fnum,
uint32_t sec_info,
const struct security_descriptor *sd)
{
uint8_t param[8];
uint8 *data;
size_t len;
NTSTATUS status;
if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
return cli_smb2_set_security_descriptor(cli,
fnum,
sec_info,
sd);
}
status = marshall_sec_desc(talloc_tos(), sd, &data, &len);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10, ("marshall_sec_desc failed: %s\n",
nt_errstr(status)));
return status;
}
SIVAL(param, 0, fnum);
SIVAL(param, 4, sec_info);
status = cli_trans(talloc_tos(), cli, SMBnttrans,
NULL, -1, /* name, fid */
NT_TRANSACT_SET_SECURITY_DESC, 0,
NULL, 0, 0, /* setup */
param, 8, 0, /* param */
data, len, 0, /* data */
NULL, /* recv_flags2 */
NULL, 0, NULL, /* rsetup */
NULL, 0, NULL, /* rparam */
NULL, 0, NULL); /* rdata */
TALLOC_FREE(data);
if (!NT_STATUS_IS_OK(status)) {
DEBUG(1, ("Failed to send NT_TRANSACT_SET_SECURITY_DESC: %s\n",
nt_errstr(status)));
}
return status;
}
static SMBCSRV *
SMBC_server_internal(TALLOC_CTX *ctx,
SMBCCTX *context,
bool connect_if_not_found,
const char *server,
uint16_t port,
const char *share,
char **pp_workgroup,
char **pp_username,
char **pp_password,
bool *in_cache)
{
SMBCSRV *srv=NULL;
char *workgroup = NULL;
struct cli_state *c = NULL;
const char *server_n = server;
int is_ipc = (share != NULL && strcmp(share, "IPC$") == 0);
uint32_t fs_attrs = 0;
const char *username_used;
NTSTATUS status;
char *newserver, *newshare;
int flags = 0;
struct smbXcli_tcon *tcon = NULL;
int signing_state = SMB_SIGNING_DEFAULT;
ZERO_STRUCT(c);
*in_cache = false;
if (server[0] == 0) {
errno = EPERM;
return NULL;
}
/* Look for a cached connection */
srv = SMBC_find_server(ctx, context, server, share,
pp_workgroup, pp_username, pp_password);
/*
* If we found a connection and we're only allowed one share per
* server...
*/
if (srv &&
share != NULL && *share != '\0' &&
smbc_getOptionOneSharePerServer(context)) {
/*
* ... then if there's no current connection to the share,
* connect to it. SMBC_find_server(), or rather the function
* pointed to by context->get_cached_srv_fn which
* was called by SMBC_find_server(), will have issued a tree
* disconnect if the requested share is not the same as the
* one that was already connected.
*/
/*
* Use srv->cli->desthost and srv->cli->share instead of
* server and share below to connect to the actual share,
* i.e., a normal share or a referred share from
* 'msdfs proxy' share.
*/
if (!cli_state_has_tcon(srv->cli)) {
/* Ensure we have accurate auth info */
SMBC_call_auth_fn(ctx, context,
smbXcli_conn_remote_name(srv->cli->conn),
srv->cli->share,
pp_workgroup,
pp_username,
pp_password);
if (!*pp_workgroup || !*pp_username || !*pp_password) {
errno = ENOMEM;
cli_shutdown(srv->cli);
srv->cli = NULL;
smbc_getFunctionRemoveCachedServer(context)(context,
srv);
return NULL;
}
/*
* We don't need to renegotiate encryption
* here as the encryption context is not per
* tid.
*/
status = cli_tree_connect(srv->cli,
srv->cli->share,
"?????",
*pp_password,
strlen(*pp_password)+1);
if (!NT_STATUS_IS_OK(status)) {
errno = map_errno_from_nt_status(status);
cli_shutdown(srv->cli);
srv->cli = NULL;
smbc_getFunctionRemoveCachedServer(context)(context,
srv);
srv = NULL;
}
/* Determine if this share supports case sensitivity */
if (is_ipc) {
DEBUG(4,
("IPC$ so ignore case sensitivity\n"));
status = NT_STATUS_OK;
} else {
status = cli_get_fs_attr_info(c, &fs_attrs);
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(4, ("Could not retrieve "
"case sensitivity flag: %s.\n",
nt_errstr(status)));
/*
* We can't determine the case sensitivity of
* the share. We have no choice but to use the
* user-specified case sensitivity setting.
*/
if (smbc_getOptionCaseSensitive(context)) {
cli_set_case_sensitive(c, True);
} else {
cli_set_case_sensitive(c, False);
}
} else if (!is_ipc) {
DEBUG(4,
("Case sensitive: %s\n",
(fs_attrs & FILE_CASE_SENSITIVE_SEARCH
? "True"
: "False")));
cli_set_case_sensitive(
c,
(fs_attrs & FILE_CASE_SENSITIVE_SEARCH
? True
: False));
}
/*
* Regenerate the dev value since it's based on both
* server and share
*/
if (srv) {
const char *remote_name =
smbXcli_conn_remote_name(srv->cli->conn);
srv->dev = (dev_t)(str_checksum(remote_name) ^
str_checksum(srv->cli->share));
}
}
}
/* If we have a connection... */
if (srv) {
/* ... then we're done here. Give 'em what they came for. */
*in_cache = true;
goto done;
}
/* If we're not asked to connect when a connection doesn't exist... */
if (! connect_if_not_found) {
/* ... then we're done here. */
return NULL;
}
if (!*pp_workgroup || !*pp_username || !*pp_password) {
errno = ENOMEM;
return NULL;
}
DEBUG(4,("SMBC_server: server_n=[%s] server=[%s]\n", server_n, server));
DEBUG(4,(" -> server_n=[%s] server=[%s]\n", server_n, server));
status = NT_STATUS_UNSUCCESSFUL;
if (smbc_getOptionUseKerberos(context)) {
flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
}
if (smbc_getOptionFallbackAfterKerberos(context)) {
flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
}
if (smbc_getOptionUseCCache(context)) {
flags |= CLI_FULL_CONNECTION_USE_CCACHE;
}
if (smbc_getOptionUseNTHash(context)) {
flags |= CLI_FULL_CONNECTION_USE_NT_HASH;
}
if (context->internal->smb_encryption_level != SMBC_ENCRYPTLEVEL_NONE) {
signing_state = SMB_SIGNING_REQUIRED;
}
if (port == 0) {
if (share == NULL || *share == '\0' || is_ipc) {
/*
* Try 139 first for IPC$
*/
status = cli_connect_nb(server_n, NULL, NBT_SMB_PORT, 0x20,
smbc_getNetbiosName(context),
signing_state, flags, &c);
}
}
if (!NT_STATUS_IS_OK(status)) {
/*
* No IPC$ or 139 did not work
*/
status = cli_connect_nb(server_n, NULL, port, 0x20,
smbc_getNetbiosName(context),
signing_state, flags, &c);
}
if (!NT_STATUS_IS_OK(status)) {
errno = map_errno_from_nt_status(status);
return NULL;
}
cli_set_timeout(c, smbc_getTimeout(context));
status = smbXcli_negprot(c->conn, c->timeout,
lp_client_min_protocol(),
lp_client_max_protocol());
if (!NT_STATUS_IS_OK(status)) {
cli_shutdown(c);
errno = ETIMEDOUT;
return NULL;
}
if (smbXcli_conn_protocol(c->conn) >= PROTOCOL_SMB2_02) {
/* Ensure we ask for some initial credits. */
smb2cli_conn_set_max_credits(c->conn, DEFAULT_SMB2_MAX_CREDITS);
}
username_used = *pp_username;
if (!NT_STATUS_IS_OK(cli_session_setup(c, username_used,
*pp_password,
strlen(*pp_password),
*pp_password,
strlen(*pp_password),
*pp_workgroup))) {
/* Failed. Try an anonymous login, if allowed by flags. */
username_used = "";
if (smbc_getOptionNoAutoAnonymousLogin(context) ||
!NT_STATUS_IS_OK(cli_session_setup(c, username_used,
*pp_password, 1,
*pp_password, 0,
*pp_workgroup))) {
cli_shutdown(c);
errno = EPERM;
return NULL;
}
}
DEBUG(4,(" session setup ok\n"));
/* here's the fun part....to support 'msdfs proxy' shares
(on Samba or windows) we have to issues a TRANS_GET_DFS_REFERRAL
here before trying to connect to the original share.
cli_check_msdfs_proxy() will fail if it is a normal share. */
if (smbXcli_conn_dfs_supported(c->conn) &&
cli_check_msdfs_proxy(ctx, c, share,
&newserver, &newshare,
/* FIXME: cli_check_msdfs_proxy() does
not support smbc_smb_encrypt_level type */
context->internal->smb_encryption_level ?
true : false,
*pp_username,
*pp_password,
*pp_workgroup)) {
cli_shutdown(c);
srv = SMBC_server_internal(ctx, context, connect_if_not_found,
newserver, port, newshare, pp_workgroup,
pp_username, pp_password, in_cache);
TALLOC_FREE(newserver);
TALLOC_FREE(newshare);
return srv;
}
/* must be a normal share */
status = cli_tree_connect(c, share, "?????", *pp_password,
strlen(*pp_password)+1);
if (!NT_STATUS_IS_OK(status)) {
errno = map_errno_from_nt_status(status);
cli_shutdown(c);
return NULL;
}
DEBUG(4,(" tconx ok\n"));
if (smbXcli_conn_protocol(c->conn) >= PROTOCOL_SMB2_02) {
tcon = c->smb2.tcon;
} else {
tcon = c->smb1.tcon;
}
/* Determine if this share supports case sensitivity */
if (is_ipc) {
DEBUG(4, ("IPC$ so ignore case sensitivity\n"));
status = NT_STATUS_OK;
} else {
status = cli_get_fs_attr_info(c, &fs_attrs);
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(4, ("Could not retrieve case sensitivity flag: %s.\n",
nt_errstr(status)));
/*
* We can't determine the case sensitivity of the share. We
* have no choice but to use the user-specified case
* sensitivity setting.
*/
if (smbc_getOptionCaseSensitive(context)) {
cli_set_case_sensitive(c, True);
} else {
cli_set_case_sensitive(c, False);
}
} else if (!is_ipc) {
DEBUG(4, ("Case sensitive: %s\n",
(fs_attrs & FILE_CASE_SENSITIVE_SEARCH
? "True"
: "False")));
smbXcli_tcon_set_fs_attributes(tcon, fs_attrs);
}
if (context->internal->smb_encryption_level) {
/* Attempt UNIX smb encryption. */
if (!NT_STATUS_IS_OK(cli_force_encryption(c,
username_used,
*pp_password,
*pp_workgroup))) {
/*
* context->smb_encryption_level == 1
* means don't fail if encryption can't be negotiated,
* == 2 means fail if encryption can't be negotiated.
*/
DEBUG(4,(" SMB encrypt failed\n"));
if (context->internal->smb_encryption_level == 2) {
cli_shutdown(c);
errno = EPERM;
return NULL;
}
}
DEBUG(4,(" SMB encrypt ok\n"));
}
/*
* Ok, we have got a nice connection
* Let's allocate a server structure.
*/
srv = SMB_MALLOC_P(SMBCSRV);
if (!srv) {
cli_shutdown(c);
errno = ENOMEM;
return NULL;
}
ZERO_STRUCTP(srv);
DLIST_ADD(srv->cli, c);
srv->dev = (dev_t)(str_checksum(server) ^ str_checksum(share));
srv->no_pathinfo = False;
srv->no_pathinfo2 = False;
srv->no_pathinfo3 = False;
srv->no_nt_session = False;
done:
if (!pp_workgroup || !*pp_workgroup || !**pp_workgroup) {
workgroup = talloc_strdup(ctx, smbc_getWorkgroup(context));
} else {
workgroup = *pp_workgroup;
}
if(!workgroup) {
if (c != NULL) {
cli_shutdown(c);
}
SAFE_FREE(srv);
return NULL;
}
/* set the credentials to make DFS work */
smbc_set_credentials_with_fallback(context,
workgroup,
*pp_username,
*pp_password);
return srv;
}
static NTSTATUS do_connect(TALLOC_CTX *ctx,
const char *server,
const char *share,
const struct user_auth_info *auth_info,
bool show_sessetup,
bool force_encrypt,
int max_protocol,
int port,
int name_type,
struct cli_state **pcli)
{
struct cli_state *c = NULL;
char *servicename;
char *sharename;
char *newserver, *newshare;
const char *username;
const char *password;
const char *domain;
NTSTATUS status;
int flags = 0;
/* make a copy so we don't modify the global string 'service' */
servicename = talloc_strdup(ctx,share);
if (!servicename) {
return NT_STATUS_NO_MEMORY;
}
sharename = servicename;
if (*sharename == '\\') {
sharename += 2;
if (server == NULL) {
server = sharename;
}
sharename = strchr_m(sharename,'\\');
if (!sharename) {
return NT_STATUS_NO_MEMORY;
}
*sharename = 0;
sharename++;
}
if (server == NULL) {
return NT_STATUS_INVALID_PARAMETER;
}
if (get_cmdline_auth_info_use_kerberos(auth_info)) {
flags |= CLI_FULL_CONNECTION_USE_KERBEROS;
}
if (get_cmdline_auth_info_fallback_after_kerberos(auth_info)) {
flags |= CLI_FULL_CONNECTION_FALLBACK_AFTER_KERBEROS;
}
if (get_cmdline_auth_info_use_ccache(auth_info)) {
flags |= CLI_FULL_CONNECTION_USE_CCACHE;
}
if (get_cmdline_auth_info_use_pw_nt_hash(auth_info)) {
flags |= CLI_FULL_CONNECTION_USE_NT_HASH;
}
status = cli_connect_nb(
server, NULL, port, name_type, NULL,
get_cmdline_auth_info_signing_state(auth_info),
flags, &c);
if (!NT_STATUS_IS_OK(status)) {
d_printf("Connection to %s failed (Error %s)\n",
server,
nt_errstr(status));
return status;
}
if (max_protocol == 0) {
max_protocol = PROTOCOL_NT1;
}
DEBUG(4,(" session request ok\n"));
status = smbXcli_negprot(c->conn, c->timeout,
lp_client_min_protocol(),
max_protocol);
if (!NT_STATUS_IS_OK(status)) {
d_printf("protocol negotiation failed: %s\n",
nt_errstr(status));
cli_shutdown(c);
return status;
}
if (smbXcli_conn_protocol(c->conn) >= PROTOCOL_SMB2_02) {
/* Ensure we ask for some initial credits. */
smb2cli_conn_set_max_credits(c->conn, DEFAULT_SMB2_MAX_CREDITS);
}
username = get_cmdline_auth_info_username(auth_info);
password = get_cmdline_auth_info_password(auth_info);
domain = get_cmdline_auth_info_domain(auth_info);
if ((domain == NULL) || (domain[0] == '\0')) {
domain = lp_workgroup();
}
status = cli_session_setup(c, username,
password, strlen(password),
password, strlen(password),
domain);
if (!NT_STATUS_IS_OK(status)) {
/* If a password was not supplied then
* try again with a null username. */
if (password[0] || !username[0] ||
get_cmdline_auth_info_use_kerberos(auth_info) ||
!NT_STATUS_IS_OK(status = cli_session_setup(c, "",
"", 0,
"", 0,
lp_workgroup()))) {
d_printf("session setup failed: %s\n",
nt_errstr(status));
if (NT_STATUS_EQUAL(status,
NT_STATUS_MORE_PROCESSING_REQUIRED))
d_printf("did you forget to run kinit?\n");
cli_shutdown(c);
return status;
}
d_printf("Anonymous login successful\n");
}
if (!NT_STATUS_IS_OK(status)) {
DEBUG(10,("cli_init_creds() failed: %s\n", nt_errstr(status)));
cli_shutdown(c);
return status;
}
if ( show_sessetup ) {
if (*c->server_domain) {
DEBUG(0,("Domain=[%s] OS=[%s] Server=[%s]\n",
c->server_domain,c->server_os,c->server_type));
} else if (*c->server_os || *c->server_type) {
DEBUG(0,("OS=[%s] Server=[%s]\n",
c->server_os,c->server_type));
}
}
DEBUG(4,(" session setup ok\n"));
/* here's the fun part....to support 'msdfs proxy' shares
(on Samba or windows) we have to issues a TRANS_GET_DFS_REFERRAL
here before trying to connect to the original share.
cli_check_msdfs_proxy() will fail if it is a normal share. */
if (smbXcli_conn_dfs_supported(c->conn) &&
cli_check_msdfs_proxy(ctx, c, sharename,
&newserver, &newshare,
force_encrypt,
username,
password,
domain)) {
cli_shutdown(c);
return do_connect(ctx, newserver,
newshare, auth_info, false,
force_encrypt, max_protocol,
port, name_type, pcli);
}
/* must be a normal share */
status = cli_tree_connect(c, sharename, "?????",
password, strlen(password)+1);
if (!NT_STATUS_IS_OK(status)) {
d_printf("tree connect failed: %s\n", nt_errstr(status));
cli_shutdown(c);
return status;
}
if (force_encrypt) {
status = cli_cm_force_encryption(c,
username,
password,
domain,
sharename);
if (!NT_STATUS_IS_OK(status)) {
cli_shutdown(c);
return status;
}
}
DEBUG(4,(" tconx ok\n"));
*pcli = c;
return NT_STATUS_OK;
}
NTSTATUS cli_dfs_get_referral(TALLOC_CTX *ctx,
struct cli_state *cli,
const char *path,
struct client_dfs_referral **refs,
size_t *num_refs,
size_t *consumed)
{
unsigned int param_len = 0;
uint16_t recv_flags2;
uint8_t *param = NULL;
uint8_t *rdata = NULL;
char *p;
char *endp;
smb_ucs2_t *path_ucs;
char *consumed_path = NULL;
uint16_t consumed_ucs;
uint16_t num_referrals;
struct client_dfs_referral *referrals = NULL;
NTSTATUS status;
TALLOC_CTX *frame = talloc_stackframe();
*num_refs = 0;
*refs = NULL;
param = talloc_array(talloc_tos(), uint8_t, 2);
if (!param) {
status = NT_STATUS_NO_MEMORY;
goto out;
}
SSVAL(param, 0, 0x03); /* max referral level */
param = trans2_bytes_push_str(param, smbXcli_conn_use_unicode(cli->conn),
path, strlen(path)+1,
NULL);
if (!param) {
status = NT_STATUS_NO_MEMORY;
goto out;
}
param_len = talloc_get_size(param);
path_ucs = (smb_ucs2_t *)¶m[2];
if (smbXcli_conn_protocol(cli->conn) >= PROTOCOL_SMB2_02) {
DATA_BLOB in_input_buffer;
DATA_BLOB in_output_buffer = data_blob_null;
DATA_BLOB out_input_buffer = data_blob_null;
DATA_BLOB out_output_buffer = data_blob_null;
in_input_buffer.data = param;
in_input_buffer.length = param_len;
status = smb2cli_ioctl(cli->conn,
cli->timeout,
cli->smb2.session,
cli->smb2.tcon,
UINT64_MAX, /* in_fid_persistent */
UINT64_MAX, /* in_fid_volatile */
FSCTL_DFS_GET_REFERRALS,
0, /* in_max_input_length */
&in_input_buffer,
CLI_BUFFER_SIZE, /* in_max_output_length */
&in_output_buffer,
SMB2_IOCTL_FLAG_IS_FSCTL,
talloc_tos(),
&out_input_buffer,
&out_output_buffer);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
if (out_output_buffer.length < 4) {
status = NT_STATUS_INVALID_NETWORK_RESPONSE;
goto out;
}
recv_flags2 = FLAGS2_UNICODE_STRINGS;
rdata = out_output_buffer.data;
endp = (char *)rdata + out_output_buffer.length;
} else {
unsigned int data_len = 0;
uint16_t setup[1];
SSVAL(setup, 0, TRANSACT2_GET_DFS_REFERRAL);
status = cli_trans(talloc_tos(), cli, SMBtrans2,
NULL, 0xffff, 0, 0,
setup, 1, 0,
param, param_len, 2,
NULL, 0, CLI_BUFFER_SIZE,
&recv_flags2,
NULL, 0, NULL, /* rsetup */
NULL, 0, NULL,
&rdata, 4, &data_len);
if (!NT_STATUS_IS_OK(status)) {
goto out;
}
endp = (char *)rdata + data_len;
}
consumed_ucs = SVAL(rdata, 0);
num_referrals = SVAL(rdata, 2);
/* consumed_ucs is the number of bytes
* of the UCS2 path consumed not counting any
* terminating null. We need to convert
* back to unix charset and count again
* to get the number of bytes consumed from
* the incoming path. */
errno = 0;
if (pull_string_talloc(talloc_tos(),
NULL,
0,
&consumed_path,
path_ucs,
consumed_ucs,
STR_UNICODE) == 0) {
if (errno != 0) {
status = map_nt_error_from_unix(errno);
} else {
status = NT_STATUS_INVALID_NETWORK_RESPONSE;
}
goto out;
}
if (consumed_path == NULL) {
status = map_nt_error_from_unix(errno);
goto out;
}
*consumed = strlen(consumed_path);
if (num_referrals != 0) {
uint16_t ref_version;
uint16_t ref_size;
int i;
uint16_t node_offset;
referrals = talloc_array(ctx, struct client_dfs_referral,
num_referrals);
if (!referrals) {
status = NT_STATUS_NO_MEMORY;
goto out;
}
/* start at the referrals array */
p = (char *)rdata+8;
for (i=0; i<num_referrals && p < endp; i++) {
if (p + 18 > endp) {
goto out;
}
ref_version = SVAL(p, 0);
ref_size = SVAL(p, 2);
node_offset = SVAL(p, 16);
if (ref_version != 3) {
p += ref_size;
continue;
}
referrals[i].proximity = SVAL(p, 8);
referrals[i].ttl = SVAL(p, 10);
if (p + node_offset > endp) {
status = NT_STATUS_INVALID_NETWORK_RESPONSE;
goto out;
}
clistr_pull_talloc(referrals,
(const char *)rdata,
recv_flags2,
&referrals[i].dfspath,
p+node_offset,
PTR_DIFF(endp, p+node_offset),
STR_TERMINATE|STR_UNICODE);
if (!referrals[i].dfspath) {
status = map_nt_error_from_unix(errno);
goto out;
}
p += ref_size;
}
if (i < num_referrals) {
status = NT_STATUS_INVALID_NETWORK_RESPONSE;
goto out;
}
}