| /* |
| * Copyright (c) 1991, 1993, 1994, 1995, 1996, 1997 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that: (1) source code distributions |
| * retain the above copyright notice and this paragraph in its entirety, (2) |
| * distributions including binary code include the above copyright notice and |
| * this paragraph in its entirety in the documentation or other materials |
| * provided with the distribution, and (3) all advertising materials mentioning |
| * features or use of this software display the following acknowledgement: |
| * ``This product includes software developed by the University of California, |
| * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of |
| * the University nor the names of its contributors may be used to endorse |
| * or promote products derived from this software without specific prior |
| * written permission. |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * PPTP support contributed by Motonori Shindo (mshindo@mshindo.net) |
| */ |
| |
| |
| #ifndef lint |
| static const char rcsid[] _U_ = |
| "@(#) $Header: /tcpdump/master/tcpdump/print-pptp.c,v 1.12 2006-06-23 02:03:09 hannes Exp $"; |
| #endif |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #include <tcpdump-stdinc.h> |
| |
| #include <stdio.h> |
| |
| #include "interface.h" |
| #include "extract.h" |
| |
| static char tstr[] = " [|pptp]"; |
| |
| #define PPTP_MSG_TYPE_CTRL 1 /* Control Message */ |
| #define PPTP_MSG_TYPE_MGMT 2 /* Management Message (currently not used */ |
| #define PPTP_MAGIC_COOKIE 0x1a2b3c4d /* for sanity check */ |
| |
| #define PPTP_CTRL_MSG_TYPE_SCCRQ 1 |
| #define PPTP_CTRL_MSG_TYPE_SCCRP 2 |
| #define PPTP_CTRL_MSG_TYPE_StopCCRQ 3 |
| #define PPTP_CTRL_MSG_TYPE_StopCCRP 4 |
| #define PPTP_CTRL_MSG_TYPE_ECHORQ 5 |
| #define PPTP_CTRL_MSG_TYPE_ECHORP 6 |
| #define PPTP_CTRL_MSG_TYPE_OCRQ 7 |
| #define PPTP_CTRL_MSG_TYPE_OCRP 8 |
| #define PPTP_CTRL_MSG_TYPE_ICRQ 9 |
| #define PPTP_CTRL_MSG_TYPE_ICRP 10 |
| #define PPTP_CTRL_MSG_TYPE_ICCN 11 |
| #define PPTP_CTRL_MSG_TYPE_CCRQ 12 |
| #define PPTP_CTRL_MSG_TYPE_CDN 13 |
| #define PPTP_CTRL_MSG_TYPE_WEN 14 |
| #define PPTP_CTRL_MSG_TYPE_SLI 15 |
| |
| #define PPTP_FRAMING_CAP_ASYNC_MASK 0x00000001 /* Aynchronous */ |
| #define PPTP_FRAMING_CAP_SYNC_MASK 0x00000002 /* Synchronous */ |
| |
| #define PPTP_BEARER_CAP_ANALOG_MASK 0x00000001 /* Analog */ |
| #define PPTP_BEARER_CAP_DIGITAL_MASK 0x00000002 /* Digital */ |
| |
| static const char *pptp_message_type_string[] = { |
| "NOT_DEFINED", /* 0 Not defined in the RFC2637 */ |
| "SCCRQ", /* 1 Start-Control-Connection-Request */ |
| "SCCRP", /* 2 Start-Control-Connection-Reply */ |
| "StopCCRQ", /* 3 Stop-Control-Connection-Request */ |
| "StopCCRP", /* 4 Stop-Control-Connection-Reply */ |
| "ECHORQ", /* 5 Echo Request */ |
| "ECHORP", /* 6 Echo Reply */ |
| |
| "OCRQ", /* 7 Outgoing-Call-Request */ |
| "OCRP", /* 8 Outgoing-Call-Reply */ |
| "ICRQ", /* 9 Incoming-Call-Request */ |
| "ICRP", /* 10 Incoming-Call-Reply */ |
| "ICCN", /* 11 Incoming-Call-Connected */ |
| "CCRQ", /* 12 Call-Clear-Request */ |
| "CDN", /* 13 Call-Disconnect-Notify */ |
| |
| "WEN", /* 14 WAN-Error-Notify */ |
| |
| "SLI" /* 15 Set-Link-Info */ |
| #define PPTP_MAX_MSGTYPE_INDEX 16 |
| }; |
| |
| /* common for all PPTP control messages */ |
| struct pptp_hdr { |
| u_int16_t length; |
| u_int16_t msg_type; |
| u_int32_t magic_cookie; |
| u_int16_t ctrl_msg_type; |
| u_int16_t reserved0; |
| }; |
| |
| struct pptp_msg_sccrq { |
| u_int16_t proto_ver; |
| u_int16_t reserved1; |
| u_int32_t framing_cap; |
| u_int32_t bearer_cap; |
| u_int16_t max_channel; |
| u_int16_t firm_rev; |
| u_char hostname[64]; |
| u_char vendor[64]; |
| }; |
| |
| struct pptp_msg_sccrp { |
| u_int16_t proto_ver; |
| u_int8_t result_code; |
| u_int8_t err_code; |
| u_int32_t framing_cap; |
| u_int32_t bearer_cap; |
| u_int16_t max_channel; |
| u_int16_t firm_rev; |
| u_char hostname[64]; |
| u_char vendor[64]; |
| }; |
| |
| struct pptp_msg_stopccrq { |
| u_int8_t reason; |
| u_int8_t reserved1; |
| u_int16_t reserved2; |
| }; |
| |
| struct pptp_msg_stopccrp { |
| u_int8_t result_code; |
| u_int8_t err_code; |
| u_int16_t reserved1; |
| }; |
| |
| struct pptp_msg_echorq { |
| u_int32_t id; |
| }; |
| |
| struct pptp_msg_echorp { |
| u_int32_t id; |
| u_int8_t result_code; |
| u_int8_t err_code; |
| u_int16_t reserved1; |
| }; |
| |
| struct pptp_msg_ocrq { |
| u_int16_t call_id; |
| u_int16_t call_ser; |
| u_int32_t min_bps; |
| u_int32_t max_bps; |
| u_int32_t bearer_type; |
| u_int32_t framing_type; |
| u_int16_t recv_winsiz; |
| u_int16_t pkt_proc_delay; |
| u_int16_t phone_no_len; |
| u_int16_t reserved1; |
| u_char phone_no[64]; |
| u_char subaddr[64]; |
| }; |
| |
| struct pptp_msg_ocrp { |
| u_int16_t call_id; |
| u_int16_t peer_call_id; |
| u_int8_t result_code; |
| u_int8_t err_code; |
| u_int16_t cause_code; |
| u_int32_t conn_speed; |
| u_int16_t recv_winsiz; |
| u_int16_t pkt_proc_delay; |
| u_int32_t phy_chan_id; |
| }; |
| |
| struct pptp_msg_icrq { |
| u_int16_t call_id; |
| u_int16_t call_ser; |
| u_int32_t bearer_type; |
| u_int32_t phy_chan_id; |
| u_int16_t dialed_no_len; |
| u_int16_t dialing_no_len; |
| u_char dialed_no[64]; /* DNIS */ |
| u_char dialing_no[64]; /* CLID */ |
| u_char subaddr[64]; |
| }; |
| |
| struct pptp_msg_icrp { |
| u_int16_t call_id; |
| u_int16_t peer_call_id; |
| u_int8_t result_code; |
| u_int8_t err_code; |
| u_int16_t recv_winsiz; |
| u_int16_t pkt_proc_delay; |
| u_int16_t reserved1; |
| }; |
| |
| struct pptp_msg_iccn { |
| u_int16_t peer_call_id; |
| u_int16_t reserved1; |
| u_int32_t conn_speed; |
| u_int16_t recv_winsiz; |
| u_int16_t pkt_proc_delay; |
| u_int32_t framing_type; |
| }; |
| |
| struct pptp_msg_ccrq { |
| u_int16_t call_id; |
| u_int16_t reserved1; |
| }; |
| |
| struct pptp_msg_cdn { |
| u_int16_t call_id; |
| u_int8_t result_code; |
| u_int8_t err_code; |
| u_int16_t cause_code; |
| u_int16_t reserved1; |
| u_char call_stats[128]; |
| }; |
| |
| struct pptp_msg_wen { |
| u_int16_t peer_call_id; |
| u_int16_t reserved1; |
| u_int32_t crc_err; |
| u_int32_t framing_err; |
| u_int32_t hardware_overrun; |
| u_int32_t buffer_overrun; |
| u_int32_t timeout_err; |
| u_int32_t align_err; |
| }; |
| |
| struct pptp_msg_sli { |
| u_int16_t peer_call_id; |
| u_int16_t reserved1; |
| u_int32_t send_accm; |
| u_int32_t recv_accm; |
| }; |
| |
| /* attributes that appear more than once in above messages: |
| |
| Number of |
| occurence attributes |
| -------------------------------------- |
| 2 u_int32_t bearer_cap; |
| 2 u_int32_t bearer_type; |
| 6 u_int16_t call_id; |
| 2 u_int16_t call_ser; |
| 2 u_int16_t cause_code; |
| 2 u_int32_t conn_speed; |
| 6 u_int8_t err_code; |
| 2 u_int16_t firm_rev; |
| 2 u_int32_t framing_cap; |
| 2 u_int32_t framing_type; |
| 2 u_char hostname[64]; |
| 2 u_int32_t id; |
| 2 u_int16_t max_channel; |
| 5 u_int16_t peer_call_id; |
| 2 u_int32_t phy_chan_id; |
| 4 u_int16_t pkt_proc_delay; |
| 2 u_int16_t proto_ver; |
| 4 u_int16_t recv_winsiz; |
| 2 u_int8_t reserved1; |
| 9 u_int16_t reserved1; |
| 6 u_int8_t result_code; |
| 2 u_char subaddr[64]; |
| 2 u_char vendor[64]; |
| |
| so I will prepare print out functions for these attributes (except for |
| reserved*). |
| */ |
| |
| /******************************************/ |
| /* Attribute-specific print out functions */ |
| /******************************************/ |
| |
| /* In these attribute-specific print-out functions, it't not necessary |
| to do TCHECK because they are already checked in the caller of |
| these functions. */ |
| |
| static void |
| pptp_bearer_cap_print(const u_int32_t *bearer_cap) |
| { |
| printf(" BEARER_CAP("); |
| if (EXTRACT_32BITS(bearer_cap) & PPTP_BEARER_CAP_DIGITAL_MASK) { |
| printf("D"); |
| } |
| if (EXTRACT_32BITS(bearer_cap) & PPTP_BEARER_CAP_ANALOG_MASK) { |
| printf("A"); |
| } |
| printf(")"); |
| } |
| |
| static void |
| pptp_bearer_type_print(const u_int32_t *bearer_type) |
| { |
| printf(" BEARER_TYPE("); |
| switch (EXTRACT_32BITS(bearer_type)) { |
| case 1: |
| printf("A"); /* Analog */ |
| break; |
| case 2: |
| printf("D"); /* Digital */ |
| break; |
| case 3: |
| printf("Any"); |
| break; |
| default: |
| printf("?"); |
| break; |
| } |
| printf(")"); |
| } |
| |
| static void |
| pptp_call_id_print(const u_int16_t *call_id) |
| { |
| printf(" CALL_ID(%u)", EXTRACT_16BITS(call_id)); |
| } |
| |
| static void |
| pptp_call_ser_print(const u_int16_t *call_ser) |
| { |
| printf(" CALL_SER_NUM(%u)", EXTRACT_16BITS(call_ser)); |
| } |
| |
| static void |
| pptp_cause_code_print(const u_int16_t *cause_code) |
| { |
| printf(" CAUSE_CODE(%u)", EXTRACT_16BITS(cause_code)); |
| } |
| |
| static void |
| pptp_conn_speed_print(const u_int32_t *conn_speed) |
| { |
| printf(" CONN_SPEED(%u)", EXTRACT_32BITS(conn_speed)); |
| } |
| |
| static void |
| pptp_err_code_print(const u_int8_t *err_code) |
| { |
| printf(" ERR_CODE(%u", *err_code); |
| if (vflag) { |
| switch (*err_code) { |
| case 0: |
| printf(":None"); |
| break; |
| case 1: |
| printf(":Not-Connected"); |
| break; |
| case 2: |
| printf(":Bad-Format"); |
| break; |
| case 3: |
| printf(":Bad-Valude"); |
| break; |
| case 4: |
| printf(":No-Resource"); |
| break; |
| case 5: |
| printf(":Bad-Call-ID"); |
| break; |
| case 6: |
| printf(":PAC-Error"); |
| break; |
| default: |
| printf(":?"); |
| break; |
| } |
| } |
| printf(")"); |
| } |
| |
| static void |
| pptp_firm_rev_print(const u_int16_t *firm_rev) |
| { |
| printf(" FIRM_REV(%u)", EXTRACT_16BITS(firm_rev)); |
| } |
| |
| static void |
| pptp_framing_cap_print(const u_int32_t *framing_cap) |
| { |
| printf(" FRAME_CAP("); |
| if (EXTRACT_32BITS(framing_cap) & PPTP_FRAMING_CAP_ASYNC_MASK) { |
| printf("A"); /* Async */ |
| } |
| if (EXTRACT_32BITS(framing_cap) & PPTP_FRAMING_CAP_SYNC_MASK) { |
| printf("S"); /* Sync */ |
| } |
| printf(")"); |
| } |
| |
| static void |
| pptp_framing_type_print(const u_int32_t *framing_type) |
| { |
| printf(" FRAME_TYPE("); |
| switch (EXTRACT_32BITS(framing_type)) { |
| case 1: |
| printf("A"); /* Async */ |
| break; |
| case 2: |
| printf("S"); /* Sync */ |
| break; |
| case 3: |
| printf("E"); /* Either */ |
| break; |
| default: |
| printf("?"); |
| break; |
| } |
| printf(")"); |
| } |
| |
| static void |
| pptp_hostname_print(const u_char *hostname) |
| { |
| printf(" HOSTNAME(%.64s)", hostname); |
| } |
| |
| static void |
| pptp_id_print(const u_int32_t *id) |
| { |
| printf(" ID(%u)", EXTRACT_32BITS(id)); |
| } |
| |
| static void |
| pptp_max_channel_print(const u_int16_t *max_channel) |
| { |
| printf(" MAX_CHAN(%u)", EXTRACT_16BITS(max_channel)); |
| } |
| |
| static void |
| pptp_peer_call_id_print(const u_int16_t *peer_call_id) |
| { |
| printf(" PEER_CALL_ID(%u)", EXTRACT_16BITS(peer_call_id)); |
| } |
| |
| static void |
| pptp_phy_chan_id_print(const u_int32_t *phy_chan_id) |
| { |
| printf(" PHY_CHAN_ID(%u)", EXTRACT_32BITS(phy_chan_id)); |
| } |
| |
| static void |
| pptp_pkt_proc_delay_print(const u_int16_t *pkt_proc_delay) |
| { |
| printf(" PROC_DELAY(%u)", EXTRACT_16BITS(pkt_proc_delay)); |
| } |
| |
| static void |
| pptp_proto_ver_print(const u_int16_t *proto_ver) |
| { |
| printf(" PROTO_VER(%u.%u)", /* Version.Revision */ |
| EXTRACT_16BITS(proto_ver) >> 8, |
| EXTRACT_16BITS(proto_ver) & 0xff); |
| } |
| |
| static void |
| pptp_recv_winsiz_print(const u_int16_t *recv_winsiz) |
| { |
| printf(" RECV_WIN(%u)", EXTRACT_16BITS(recv_winsiz)); |
| } |
| |
| static void |
| pptp_result_code_print(const u_int8_t *result_code, int ctrl_msg_type) |
| { |
| printf(" RESULT_CODE(%u", *result_code); |
| if (vflag) { |
| switch (ctrl_msg_type) { |
| case PPTP_CTRL_MSG_TYPE_SCCRP: |
| switch (*result_code) { |
| case 1: |
| printf(":Successful channel establishment"); |
| break; |
| case 2: |
| printf(":General error"); |
| break; |
| case 3: |
| printf(":Command channel already exists"); |
| break; |
| case 4: |
| printf(":Requester is not authorized to establish a command channel"); |
| break; |
| case 5: |
| printf(":The protocol version of the requester is not supported"); |
| break; |
| default: |
| printf(":?"); |
| break; |
| } |
| break; |
| case PPTP_CTRL_MSG_TYPE_StopCCRP: |
| case PPTP_CTRL_MSG_TYPE_ECHORP: |
| switch (*result_code) { |
| case 1: |
| printf(":OK"); |
| break; |
| case 2: |
| printf(":General Error"); |
| break; |
| default: |
| printf(":?"); |
| break; |
| } |
| break; |
| case PPTP_CTRL_MSG_TYPE_OCRP: |
| switch (*result_code) { |
| case 1: |
| printf(":Connected"); |
| break; |
| case 2: |
| printf(":General Error"); |
| break; |
| case 3: |
| printf(":No Carrier"); |
| break; |
| case 4: |
| printf(":Busy"); |
| break; |
| case 5: |
| printf(":No Dial Tone"); |
| break; |
| case 6: |
| printf(":Time-out"); |
| break; |
| case 7: |
| printf(":Do Not Accept"); |
| break; |
| default: |
| printf(":?"); |
| break; |
| } |
| break; |
| case PPTP_CTRL_MSG_TYPE_ICRP: |
| 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); |
| } |