print-pptp.c

来自「TCPDUMP的C语言源代码,是在数据链路层的应用」· C语言 代码 · 共 1,061 行 · 第 1/2 页

			switch (*result_code) {
			case 1:
				printf(":Connect");
				break;
			case 2:
				printf(":General Error");
				break;
			case 3:
				printf(":Do Not Accept");
				break;
			default:
				printf(":?");
				break;
			}
			break;
		case PPTP_CTRL_MSG_TYPE_CDN:
			switch (*result_code) {
			case 1:
				printf(":Lost Carrier");
				break;
			case 2:
				printf(":General Error");
				break;
			case 3:
				printf(":Admin Shutdown");
				break;
			case 4:
				printf(":Request");
			default:
				printf(":?");
				break;
			break;
			}
		default:
			/* assertion error */
			break;
		}
	}
	printf(")");
}

static void
pptp_subaddr_print(const u_char *subaddr)
{
	printf(" SUB_ADDR(%.64s)", subaddr);
}

static void
pptp_vendor_print(const u_char *vendor)
{
	printf(" VENDOR(%.64s)", vendor);
}

/************************************/
/* PPTP message print out functions */
/************************************/
static void
pptp_sccrq_print(const u_char *dat)
{
	struct pptp_msg_sccrq *ptr = (struct pptp_msg_sccrq *)dat;

	TCHECK(ptr->proto_ver);
	pptp_proto_ver_print(&ptr->proto_ver);
	TCHECK(ptr->reserved1);
	TCHECK(ptr->framing_cap);
	pptp_framing_cap_print(&ptr->framing_cap);
	TCHECK(ptr->bearer_cap);
	pptp_bearer_cap_print(&ptr->bearer_cap);
	TCHECK(ptr->max_channel);
	pptp_max_channel_print(&ptr->max_channel);
	TCHECK(ptr->firm_rev);
	pptp_firm_rev_print(&ptr->firm_rev);
	TCHECK(ptr->hostname);
	pptp_hostname_print(&ptr->hostname[0]);
	TCHECK(ptr->vendor);
	pptp_vendor_print(&ptr->vendor[0]);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_sccrp_print(const u_char *dat)
{
	struct pptp_msg_sccrp *ptr = (struct pptp_msg_sccrp *)dat;

	TCHECK(ptr->proto_ver);
	pptp_proto_ver_print(&ptr->proto_ver);
	TCHECK(ptr->result_code);
	pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_SCCRP);
	TCHECK(ptr->err_code);
	pptp_err_code_print(&ptr->err_code);
	TCHECK(ptr->framing_cap);
	pptp_framing_cap_print(&ptr->framing_cap);
	TCHECK(ptr->bearer_cap);
	pptp_bearer_cap_print(&ptr->bearer_cap);
	TCHECK(ptr->max_channel);
	pptp_max_channel_print(&ptr->max_channel);
	TCHECK(ptr->firm_rev);
	pptp_firm_rev_print(&ptr->firm_rev);
	TCHECK(ptr->hostname);
	pptp_hostname_print(&ptr->hostname[0]);
	TCHECK(ptr->vendor);
	pptp_vendor_print(&ptr->vendor[0]);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_stopccrq_print(const u_char *dat)
{
	struct pptp_msg_stopccrq *ptr = (struct pptp_msg_stopccrq *)dat;

	TCHECK(ptr->reason);
	printf(" REASON(%u", ptr->reason);
	if (vflag) {
		switch (ptr->reason) {
		case 1:
			printf(":None");
			break;
		case 2:
			printf(":Stop-Protocol");
			break;
		case 3:
			printf(":Stop-Local-Shutdown");
			break;
		default:
			printf(":?");
			break;
		}
	}
	printf(")");
	TCHECK(ptr->reserved1);
	TCHECK(ptr->reserved2);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_stopccrp_print(const u_char *dat)
{
	struct pptp_msg_stopccrp *ptr = (struct pptp_msg_stopccrp *)dat;

	TCHECK(ptr->result_code);
	pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_StopCCRP);
	TCHECK(ptr->err_code);
	pptp_err_code_print(&ptr->err_code);
	TCHECK(ptr->reserved1);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_echorq_print(const u_char *dat)
{
	struct pptp_msg_echorq *ptr = (struct pptp_msg_echorq *)dat;

	TCHECK(ptr->id);
	pptp_id_print(&ptr->id);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_echorp_print(const u_char *dat)
{
	struct pptp_msg_echorp *ptr = (struct pptp_msg_echorp *)dat;

	TCHECK(ptr->id);
	pptp_id_print(&ptr->id);
	TCHECK(ptr->result_code);
	pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_ECHORP);
	TCHECK(ptr->err_code);
	pptp_err_code_print(&ptr->err_code);
	TCHECK(ptr->reserved1);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_ocrq_print(const u_char *dat)
{
	struct pptp_msg_ocrq *ptr = (struct pptp_msg_ocrq *)dat;

	TCHECK(ptr->call_id);
	pptp_call_id_print(&ptr->call_id);
	TCHECK(ptr->call_ser);
	pptp_call_ser_print(&ptr->call_ser);
	TCHECK(ptr->min_bps);
	printf(" MIN_BPS(%u)", EXTRACT_32BITS(&ptr->min_bps));
	TCHECK(ptr->max_bps);
	printf(" MAX_BPS(%u)", EXTRACT_32BITS(&ptr->max_bps));
	TCHECK(ptr->bearer_type);
	pptp_bearer_type_print(&ptr->bearer_type);
	TCHECK(ptr->framing_type);
	pptp_framing_type_print(&ptr->framing_type);
	TCHECK(ptr->recv_winsiz);
	pptp_recv_winsiz_print(&ptr->recv_winsiz);
	TCHECK(ptr->pkt_proc_delay);
	pptp_pkt_proc_delay_print(&ptr->pkt_proc_delay);
	TCHECK(ptr->phone_no_len);
	printf(" PHONE_NO_LEN(%u)", EXTRACT_16BITS(&ptr->phone_no_len));
	TCHECK(ptr->reserved1);
	TCHECK(ptr->phone_no);
	printf(" PHONE_NO(%.64s)", ptr->phone_no);
	TCHECK(ptr->subaddr);
	pptp_subaddr_print(&ptr->subaddr[0]);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_ocrp_print(const u_char *dat)
{
	struct pptp_msg_ocrp *ptr = (struct pptp_msg_ocrp *)dat;

	TCHECK(ptr->call_id);
	pptp_call_id_print(&ptr->call_id);
	TCHECK(ptr->peer_call_id);
	pptp_peer_call_id_print(&ptr->peer_call_id);
	TCHECK(ptr->result_code);
	pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_OCRP);
	TCHECK(ptr->err_code);
	pptp_err_code_print(&ptr->err_code);
	TCHECK(ptr->cause_code);
	pptp_cause_code_print(&ptr->cause_code);
	TCHECK(ptr->conn_speed);
	pptp_conn_speed_print(&ptr->conn_speed);
	TCHECK(ptr->recv_winsiz);
	pptp_recv_winsiz_print(&ptr->recv_winsiz);
	TCHECK(ptr->pkt_proc_delay);
	pptp_pkt_proc_delay_print(&ptr->pkt_proc_delay);
	TCHECK(ptr->phy_chan_id);
	pptp_phy_chan_id_print(&ptr->phy_chan_id);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_icrq_print(const u_char *dat)
{
	struct pptp_msg_icrq *ptr = (struct pptp_msg_icrq *)dat;

	TCHECK(ptr->call_id);
	pptp_call_id_print(&ptr->call_id);
	TCHECK(ptr->call_ser);
	pptp_call_ser_print(&ptr->call_ser);
	TCHECK(ptr->bearer_type);
	pptp_bearer_type_print(&ptr->bearer_type);
	TCHECK(ptr->phy_chan_id);
	pptp_phy_chan_id_print(&ptr->phy_chan_id);
	TCHECK(ptr->dialed_no_len);
	printf(" DIALED_NO_LEN(%u)", EXTRACT_16BITS(&ptr->dialed_no_len));
	TCHECK(ptr->dialing_no_len);
	printf(" DIALING_NO_LEN(%u)", EXTRACT_16BITS(&ptr->dialing_no_len));
	TCHECK(ptr->dialed_no);
	printf(" DIALED_NO(%.64s)", ptr->dialed_no);
	TCHECK(ptr->dialing_no);
	printf(" DIALING_NO(%.64s)", ptr->dialing_no);
	TCHECK(ptr->subaddr);
	pptp_subaddr_print(&ptr->subaddr[0]);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_icrp_print(const u_char *dat)
{
	struct pptp_msg_icrp *ptr = (struct pptp_msg_icrp *)dat;

	TCHECK(ptr->call_id);
	pptp_call_id_print(&ptr->call_id);
	TCHECK(ptr->peer_call_id);
	pptp_peer_call_id_print(&ptr->peer_call_id);
	TCHECK(ptr->result_code);
	pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_ICRP);
	TCHECK(ptr->err_code);
	pptp_err_code_print(&ptr->err_code);
	TCHECK(ptr->recv_winsiz);
	pptp_recv_winsiz_print(&ptr->recv_winsiz);
	TCHECK(ptr->pkt_proc_delay);
	pptp_pkt_proc_delay_print(&ptr->pkt_proc_delay);
	TCHECK(ptr->reserved1);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_iccn_print(const u_char *dat)
{
	struct pptp_msg_iccn *ptr = (struct pptp_msg_iccn *)dat;

	TCHECK(ptr->peer_call_id);
	pptp_peer_call_id_print(&ptr->peer_call_id);
	TCHECK(ptr->reserved1);
	TCHECK(ptr->conn_speed);
	pptp_conn_speed_print(&ptr->conn_speed);
	TCHECK(ptr->recv_winsiz);
	pptp_recv_winsiz_print(&ptr->recv_winsiz);
	TCHECK(ptr->pkt_proc_delay);
	pptp_pkt_proc_delay_print(&ptr->pkt_proc_delay);
	TCHECK(ptr->framing_type);
	pptp_framing_type_print(&ptr->framing_type);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_ccrq_print(const u_char *dat)
{
	struct pptp_msg_ccrq *ptr = (struct pptp_msg_ccrq *)dat;

	TCHECK(ptr->call_id);
	pptp_call_id_print(&ptr->call_id);
	TCHECK(ptr->reserved1);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_cdn_print(const u_char *dat)
{
	struct pptp_msg_cdn *ptr = (struct pptp_msg_cdn *)dat;

	TCHECK(ptr->call_id);
	pptp_call_id_print(&ptr->call_id);
	TCHECK(ptr->result_code);
	pptp_result_code_print(&ptr->result_code, PPTP_CTRL_MSG_TYPE_CDN);
	TCHECK(ptr->err_code);
	pptp_err_code_print(&ptr->err_code);
	TCHECK(ptr->cause_code);
	pptp_cause_code_print(&ptr->cause_code);
	TCHECK(ptr->reserved1);
	TCHECK(ptr->call_stats);
	printf(" CALL_STATS(%.128s)", ptr->call_stats);

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_wen_print(const u_char *dat)
{
	struct pptp_msg_wen *ptr = (struct pptp_msg_wen *)dat;

	TCHECK(ptr->peer_call_id);
	pptp_peer_call_id_print(&ptr->peer_call_id);
	TCHECK(ptr->reserved1);
	TCHECK(ptr->crc_err);
	printf(" CRC_ERR(%u)", EXTRACT_32BITS(&ptr->crc_err));
	TCHECK(ptr->framing_err);
	printf(" FRAMING_ERR(%u)", EXTRACT_32BITS(&ptr->framing_err));
	TCHECK(ptr->hardware_overrun);
	printf(" HARDWARE_OVERRUN(%u)", EXTRACT_32BITS(&ptr->hardware_overrun));
	TCHECK(ptr->buffer_overrun);
	printf(" BUFFER_OVERRUN(%u)", EXTRACT_32BITS(&ptr->buffer_overrun));
	TCHECK(ptr->timeout_err);
	printf(" TIMEOUT_ERR(%u)", EXTRACT_32BITS(&ptr->timeout_err));
	TCHECK(ptr->align_err);
	printf(" ALIGN_ERR(%u)", EXTRACT_32BITS(&ptr->align_err));

	return;

trunc:
	printf("%s", tstr);
}

static void
pptp_sli_print(const u_char *dat)
{
	struct pptp_msg_sli *ptr = (struct pptp_msg_sli *)dat;

	TCHECK(ptr->peer_call_id);
	pptp_peer_call_id_print(&ptr->peer_call_id);
	TCHECK(ptr->reserved1);
	TCHECK(ptr->send_accm);
	printf(" SEND_ACCM(0x%08x)", EXTRACT_32BITS(&ptr->send_accm));
	TCHECK(ptr->recv_accm);
	printf(" RECV_ACCM(0x%08x)", EXTRACT_32BITS(&ptr->recv_accm));

	return;

trunc:
	printf("%s", tstr);
}

void
pptp_print(const u_char *dat)
{
	const struct pptp_hdr *hdr;
	u_int32_t mc;
	u_int16_t ctrl_msg_type;

	printf(": pptp");

	hdr = (struct pptp_hdr *)dat;

	TCHECK(hdr->length);
	if (vflag) {
		printf(" Length=%u", EXTRACT_16BITS(&hdr->length));
	}
	TCHECK(hdr->msg_type);
	if (vflag) {
		switch(EXTRACT_16BITS(&hdr->msg_type)) {
		case PPTP_MSG_TYPE_CTRL:
			printf(" CTRL-MSG");
			break;
		case PPTP_MSG_TYPE_MGMT:
			printf(" MGMT-MSG");
			break;
		default:
			printf(" UNKNOWN-MSG-TYPE");
			break;
		}
	}

	TCHECK(hdr->magic_cookie);
	mc = EXTRACT_32BITS(&hdr->magic_cookie);
	if (mc != PPTP_MAGIC_COOKIE) {
		printf(" UNEXPECTED Magic-Cookie!!(%08x)", mc);
	}
	if (vflag || mc != PPTP_MAGIC_COOKIE) {
		printf(" Magic-Cookie=%08x", mc);
	}
	TCHECK(hdr->ctrl_msg_type);
	ctrl_msg_type = EXTRACT_16BITS(&hdr->ctrl_msg_type);
	if (ctrl_msg_type < PPTP_MAX_MSGTYPE_INDEX) {
		printf(" CTRL_MSGTYPE=%s",
		       pptp_message_type_string[ctrl_msg_type]);
	} else {
		printf(" UNKNOWN_CTRL_MSGTYPE(%u)", ctrl_msg_type);
	}
	TCHECK(hdr->reserved0);

	dat += 12;

	switch(ctrl_msg_type) {
	case PPTP_CTRL_MSG_TYPE_SCCRQ:
		pptp_sccrq_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_SCCRP:
		pptp_sccrp_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_StopCCRQ:
		pptp_stopccrq_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_StopCCRP:
		pptp_stopccrp_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_ECHORQ:
		pptp_echorq_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_ECHORP:
		pptp_echorp_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_OCRQ:
		pptp_ocrq_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_OCRP:
		pptp_ocrp_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_ICRQ:
		pptp_icrq_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_ICRP:
		pptp_icrp_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_ICCN:
		pptp_iccn_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_CCRQ:
		pptp_ccrq_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_CDN:
		pptp_cdn_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_WEN:
		pptp_wen_print(dat);
		break;
	case PPTP_CTRL_MSG_TYPE_SLI:
		pptp_sli_print(dat);
		break;
	default:
		/* do nothing */
		break;
	}

	return;

trunc:
	printf("%s", tstr);
}