/*
pull a string in a uint16_t ofs/ uint16_t length/blob format
UTF-16 without termination
*/
NTSTATUS smb2_pull_o16s16_string(struct smb2_request_buffer *buf, TALLOC_CTX *mem_ctx,
uint8_t *ptr, const char **str)
{
DATA_BLOB blob;
NTSTATUS status;
void *vstr;
size_t converted_size = 0;
bool ret;
status = smb2_pull_o16s16_blob(buf, mem_ctx, ptr, &blob);
NT_STATUS_NOT_OK_RETURN(status);
if (blob.data == NULL) {
*str = NULL;
return NT_STATUS_OK;
}
if (blob.length == 0) {
char *s;
s = talloc_strdup(mem_ctx, "");
NT_STATUS_HAVE_NO_MEMORY(s);
*str = s;
return NT_STATUS_OK;
}
ret = convert_string_talloc(mem_ctx, CH_UTF16, CH_UNIX,
blob.data, blob.length, &vstr, &converted_size);
data_blob_free(&blob);
(*str) = (char *)vstr;
if (!ret) {
return NT_STATUS_ILLEGAL_CHARACTER;
}
return NT_STATUS_OK;
}
/**
recv a session setup reply
*/
NTSTATUS smb2_session_setup_recv(struct smb2_request *req, TALLOC_CTX *mem_ctx,
struct smb2_session_setup *io)
{
NTSTATUS status;
if (!smb2_request_receive(req) ||
(smb2_request_is_error(req) &&
!NT_STATUS_EQUAL(req->status, NT_STATUS_MORE_PROCESSING_REQUIRED))) {
return smb2_request_destroy(req);
}
SMB2_CHECK_PACKET_RECV(req, 0x08, true);
io->out.session_flags = SVAL(req->in.body, 0x02);
io->out.uid = BVAL(req->in.hdr, SMB2_HDR_SESSION_ID);
status = smb2_pull_o16s16_blob(&req->in, mem_ctx, req->in.body+0x04, &io->out.secblob);
if (!NT_STATUS_IS_OK(status)) {
smb2_request_destroy(req);
return status;
}
return smb2_request_destroy(req);
}