diff options
Diffstat (limited to 'contrib/tcpdump/print-bfd.c')
-rw-r--r-- | contrib/tcpdump/print-bfd.c | 279 |
1 files changed, 0 insertions, 279 deletions
diff --git a/contrib/tcpdump/print-bfd.c b/contrib/tcpdump/print-bfd.c deleted file mode 100644 index 03e59dc..0000000 --- a/contrib/tcpdump/print-bfd.c +++ /dev/null @@ -1,279 +0,0 @@ -/* - * 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, and (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. - * 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. - * - * Original code by Hannes Gredler (hannes@juniper.net) - */ - -#ifndef lint -static const char rcsid[] _U_ = - "@(#) $Header: /tcpdump/master/tcpdump/print-bfd.c,v 1.5.2.5 2006/02/02 06:36:37 hannes Exp $"; -#endif - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <tcpdump-stdinc.h> - -#include <stdio.h> -#include <stdlib.h> - -#include "interface.h" -#include "extract.h" -#include "addrtoname.h" - -#include "udp.h" - -/* - * Control packet, BFDv0, draft-katz-ward-bfd-01.txt - * - * 0 1 2 3 - * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * |Vers | Diag |H|D|P|F| Rsvd | Detect Mult | Length | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | My Discriminator | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Your Discriminator | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Desired Min TX Interval | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Required Min RX Interval | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Required Min Echo RX Interval | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - */ - -/* - * Control packet, BFDv1, draft-ietf-bfd-base-02.txt - * - * 0 1 2 3 - * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * |Vers | Diag |Sta|P|F|C|A|D|R| Detect Mult | Length | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | My Discriminator | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Your Discriminator | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Desired Min TX Interval | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Required Min RX Interval | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Required Min Echo RX Interval | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - */ - -struct bfd_header_t { - u_int8_t version_diag; - u_int8_t flags; - u_int8_t detect_time_multiplier; - u_int8_t length; - u_int8_t my_discriminator[4]; - u_int8_t your_discriminator[4]; - u_int8_t desired_min_tx_interval[4]; - u_int8_t required_min_rx_interval[4]; - u_int8_t required_min_echo_interval[4]; -}; - -/* - * An optional Authentication Header may be present - * - * 0 1 2 3 - * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - * | Auth Type | Auth Len | Authentication Data... | - * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ - */ - -struct bfd_auth_header_t { - u_int8_t auth_type; - u_int8_t auth_len; - u_int8_t auth_data; -}; - -static const struct tok bfd_v1_authentication_values[] = { - { 0, "Reserved" }, - { 1, "Simple Password" }, - { 2, "Keyed MD5" }, - { 3, "Meticulous Keyed MD5" }, - { 4, "Keyed SHA1" }, - { 5, "Meticulous Keyed SHA1" }, - { 0, NULL } -}; - -#define BFD_EXTRACT_VERSION(x) (((x)&0xe0)>>5) -#define BFD_EXTRACT_DIAG(x) ((x)&0x1f) - -static const struct tok bfd_port_values[] = { - { BFD_CONTROL_PORT, "Control" }, - { BFD_ECHO_PORT, "Echo" }, - { 0, NULL } -}; - - -static const struct tok bfd_diag_values[] = { - { 0, "No Diagnostic" }, - { 1, "Control Detection Time Expired" }, - { 2, "Echo Function Failed" }, - { 3, "Neighbor Signaled Session Down" }, - { 4, "Forwarding Plane Reset" }, - { 5, "Path Down" }, - { 6, "Concatenated Path Down" }, - { 7, "Administratively Down" }, - { 8, "Reverse Concatenated Path Down" }, - { 0, NULL } -}; - -static const struct tok bfd_v0_flag_values[] = { - { 0x80, "I Hear You" }, - { 0x40, "Demand" }, - { 0x20, "Poll" }, - { 0x10, "Final" }, - { 0x08, "Reserved" }, - { 0x04, "Reserved" }, - { 0x02, "Reserved" }, - { 0x01, "Reserved" }, - { 0, NULL } -}; - -#define BFD_FLAG_AUTH 0x04 - -static const struct tok bfd_v1_flag_values[] = { - { 0x20, "Poll" }, - { 0x10, "Final" }, - { 0x08, "Control Plane Independent" }, - { BFD_FLAG_AUTH, "Authentication Present" }, - { 0x02, "Demand" }, - { 0x01, "Reserved" }, - { 0, NULL } -}; - -static const struct tok bfd_v1_state_values[] = { - { 0, "AdminDown" }, - { 1, "Down" }, - { 2, "Init" }, - { 3, "Up" }, - { 0, NULL } -}; - -void -bfd_print(register const u_char *pptr, register u_int len, register u_int port) -{ - const struct bfd_header_t *bfd_header; - const struct bfd_auth_header_t *bfd_auth_header; - u_int8_t version; - - bfd_header = (const struct bfd_header_t *)pptr; - TCHECK(*bfd_header); - version = BFD_EXTRACT_VERSION(bfd_header->version_diag); - - switch (port << 8 | version) { - - /* BFDv0 */ - case (BFD_CONTROL_PORT << 8): - if (vflag < 1 ) - { - printf("BFDv%u, %s, Flags: [%s], length: %u", - version, - tok2str(bfd_port_values, "unknown (%u)", port), - bittok2str(bfd_v0_flag_values, "none", bfd_header->flags), - len); - return; - } - - printf("BFDv%u, length: %u\n\t%s, Flags: [%s], Diagnostic: %s (0x%02x)", - version, - len, - tok2str(bfd_port_values, "unknown (%u)", port), - bittok2str(bfd_v0_flag_values, "none", bfd_header->flags), - tok2str(bfd_diag_values,"unknown",BFD_EXTRACT_DIAG(bfd_header->version_diag)), - BFD_EXTRACT_DIAG(bfd_header->version_diag)); - - printf("\n\tDetection Timer Multiplier: %u (%u ms Detection time), BFD Length: %u", - bfd_header->detect_time_multiplier, - bfd_header->detect_time_multiplier * EXTRACT_32BITS(bfd_header->desired_min_tx_interval)/1000, - bfd_header->length); - - - printf("\n\tMy Discriminator: 0x%08x", EXTRACT_32BITS(bfd_header->my_discriminator)); - printf(", Your Discriminator: 0x%08x", EXTRACT_32BITS(bfd_header->your_discriminator)); - printf("\n\t Desired min Tx Interval: %4u ms", EXTRACT_32BITS(bfd_header->desired_min_tx_interval)/1000); - printf("\n\t Required min Rx Interval: %4u ms", EXTRACT_32BITS(bfd_header->required_min_rx_interval)/1000); - printf("\n\t Required min Echo Interval: %4u ms", EXTRACT_32BITS(bfd_header->required_min_echo_interval)/1000); - break; - - /* BFDv1 */ - case (BFD_CONTROL_PORT << 8 | 1): - if (vflag < 1 ) - { - printf("BFDv%u, %s, State %s, Flags: [%s], length: %u", - version, - tok2str(bfd_port_values, "unknown (%u)", port), - tok2str(bfd_v1_state_values, "unknown (%u)", (bfd_header->flags & 0xc0) >> 6), - bittok2str(bfd_v1_flag_values, "none", bfd_header->flags & 0x3f), - len); - return; - } - - printf("BFDv%u, length: %u\n\t%s, State %s, Flags: [%s], Diagnostic: %s (0x%02x)", - version, - len, - tok2str(bfd_port_values, "unknown (%u)", port), - tok2str(bfd_v1_state_values, "unknown (%u)", (bfd_header->flags & 0xc0) >> 6), - bittok2str(bfd_v1_flag_values, "none", bfd_header->flags & 0x3f), - tok2str(bfd_diag_values,"unknown",BFD_EXTRACT_DIAG(bfd_header->version_diag)), - BFD_EXTRACT_DIAG(bfd_header->version_diag)); - - printf("\n\tDetection Timer Multiplier: %u (%u ms Detection time), BFD Length: %u", - bfd_header->detect_time_multiplier, - bfd_header->detect_time_multiplier * EXTRACT_32BITS(bfd_header->desired_min_tx_interval)/1000, - bfd_header->length); - - - printf("\n\tMy Discriminator: 0x%08x", EXTRACT_32BITS(bfd_header->my_discriminator)); - printf(", Your Discriminator: 0x%08x", EXTRACT_32BITS(bfd_header->your_discriminator)); - printf("\n\t Desired min Tx Interval: %4u ms", EXTRACT_32BITS(bfd_header->desired_min_tx_interval)/1000); - printf("\n\t Required min Rx Interval: %4u ms", EXTRACT_32BITS(bfd_header->required_min_rx_interval)/1000); - printf("\n\t Required min Echo Interval: %4u ms", EXTRACT_32BITS(bfd_header->required_min_echo_interval)/1000); - - if (bfd_header->flags & BFD_FLAG_AUTH) { - pptr += sizeof (const struct bfd_header_t); - bfd_auth_header = (const struct bfd_auth_header_t *)pptr; - TCHECK2(*bfd_auth_header, sizeof(const struct bfd_auth_header_t)); - printf("\n\t%s (%u) Authentication, length %u present", - tok2str(bfd_v1_authentication_values,"Unknown",bfd_auth_header->auth_type), - bfd_auth_header->auth_type, - bfd_auth_header->auth_len); - } - break; - - /* BFDv0 */ - case (BFD_ECHO_PORT << 8): /* not yet supported - fall through */ - /* BFDv1 */ - case (BFD_ECHO_PORT << 8 | 1): - - default: - printf("BFD, %s, length: %u", - tok2str(bfd_port_values, "unknown (%u)", port), - len); - if (vflag >= 1) { - if(!print_unknown_data(pptr,"\n\t",len)) - return; - } - break; - } - return; - -trunc: - printf("[|BFD]"); -} |