diff options
Diffstat (limited to 'print-sctp.c')
| -rw-r--r-- | print-sctp.c | 132 |
1 files changed, 96 insertions, 36 deletions
diff --git a/print-sctp.c b/print-sctp.c index 03de6a37..4e079b0b 100644 --- a/print-sctp.c +++ b/print-sctp.c @@ -417,6 +417,68 @@ static const struct tok ForCES_channels[] = { { 0, NULL } }; +/* data chunk's payload protocol identifiers */ + +#define SCTP_PPID_IUA 1 +#define SCTP_PPID_M2UA 2 +#define SCTP_PPID_M3UA 3 +#define SCTP_PPID_SUA 4 +#define SCTP_PPID_M2PA 5 +#define SCTP_PPID_V5UA 6 +#define SCTP_PPID_H248 7 +#define SCTP_PPID_BICC 8 +#define SCTP_PPID_TALI 9 +#define SCTP_PPID_DUA 10 +#define SCTP_PPID_ASAP 11 +#define SCTP_PPID_ENRP 12 +#define SCTP_PPID_H323 13 +#define SCTP_PPID_QIPC 14 +#define SCTP_PPID_SIMCO 15 +#define SCTP_PPID_DDPSC 16 +#define SCTP_PPID_DDPSSC 17 +#define SCTP_PPID_S1AP 18 +#define SCTP_PPID_RUA 19 +#define SCTP_PPID_HNBAP 20 +#define SCTP_PPID_FORCES_HP 21 +#define SCTP_PPID_FORCES_MP 22 +#define SCTP_PPID_FORCES_LP 23 +#define SCTP_PPID_SBC_AP 24 +#define SCTP_PPID_NBAP 25 +/* 26 */ +#define SCTP_PPID_X2AP 27 + +static const struct tok PayloadProto_idents[] = { + { SCTP_PPID_IUA, "ISDN Q.921" }, + { SCTP_PPID_M2UA, "M2UA" }, + { SCTP_PPID_M3UA, "M3UA" }, + { SCTP_PPID_SUA, "SUA" }, + { SCTP_PPID_M2PA, "M2PA" }, + { SCTP_PPID_V5UA, "V5.2" }, + { SCTP_PPID_H248, "H.248" }, + { SCTP_PPID_BICC, "BICC" }, + { SCTP_PPID_TALI, "TALI" }, + { SCTP_PPID_DUA, "DUA" }, + { SCTP_PPID_ASAP, "ASAP" }, + { SCTP_PPID_ENRP, "ENRP" }, + { SCTP_PPID_H323, "H.323" }, + { SCTP_PPID_QIPC, "Q.IPC" }, + { SCTP_PPID_SIMCO, "SIMCO" }, + { SCTP_PPID_DDPSC, "DDPSC" }, + { SCTP_PPID_DDPSSC, "DDPSSC" }, + { SCTP_PPID_S1AP, "S1AP" }, + { SCTP_PPID_RUA, "RUA" }, + { SCTP_PPID_HNBAP, "HNBAP" }, + { SCTP_PPID_FORCES_HP, "ForCES HP" }, + { SCTP_PPID_FORCES_MP, "ForCES MP" }, + { SCTP_PPID_FORCES_LP, "ForCES LP" }, + { SCTP_PPID_SBC_AP, "SBc-AP" }, + { SCTP_PPID_NBAP, "NBAP" }, + /* 26 */ + { SCTP_PPID_X2AP, "X2AP" }, + { 0, NULL } +}; + + static inline int isForCES_port(u_short Port) { if (Port == CHAN_HP) @@ -569,49 +631,47 @@ void sctp_print(netdissect_options *ndo, dataHdrPtr=(const struct sctpDataPart*)(chunkDescPtr+1); + u_int32_t ppid = EXTRACT_32BITS(&dataHdrPtr->payloadtype); ND_PRINT((ndo, "[TSN: %u] ", EXTRACT_32BITS(&dataHdrPtr->TSN))); ND_PRINT((ndo, "[SID: %u] ", EXTRACT_16BITS(&dataHdrPtr->streamId))); ND_PRINT((ndo, "[SSEQ %u] ", EXTRACT_16BITS(&dataHdrPtr->sequence))); - ND_PRINT((ndo, "[PPID 0x%x] ", EXTRACT_32BITS(&dataHdrPtr->payloadtype))); - if (isforces) { - const u_char *payloadPtr; - u_int chunksize = sizeof(struct sctpDataPart)+ - sizeof(struct sctpChunkDesc); - payloadPtr = (const u_char *) (dataHdrPtr + 1); - if (EXTRACT_16BITS(&chunkDescPtr->chunkLength) < - sizeof(struct sctpDataPart)+ - sizeof(struct sctpChunkDesc)+1) { - /* Less than 1 byte of chunk payload */ - ND_PRINT((ndo, "bogus ForCES chunk length %u]", - EXTRACT_16BITS(&chunkDescPtr->chunkLength))); - return; - } + ND_PRINT((ndo, "[PPID %s] ", + tok2str(PayloadProto_idents, "0x%x", ppid))); - forces_print(ndo, payloadPtr, EXTRACT_16BITS(&chunkDescPtr->chunkLength)- chunksize); - } else if (ndo->ndo_vflag >= 2) { /* if verbose output is specified */ + if (!isforces) { + isforces = (ppid == SCTP_PPID_FORCES_HP) || + (ppid == SCTP_PPID_FORCES_MP) || + (ppid == SCTP_PPID_FORCES_LP); + } + + const u_char *payloadPtr = (const u_char *) (dataHdrPtr + 1); + if (EXTRACT_16BITS(&chunkDescPtr->chunkLength) < + sizeof(struct sctpDataPart) + sizeof(struct sctpChunkDesc) + 1) { + ND_PRINT((ndo, "bogus chunk length %u]", EXTRACT_16BITS(&chunkDescPtr->chunkLength))); + return; + } + + u_int payload_size = EXTRACT_16BITS(&chunkDescPtr->chunkLength) - + (sizeof(struct sctpDataPart) + sizeof(struct sctpChunkDesc)); + + if (isforces) { + forces_print(ndo, payloadPtr, payload_size); + } else if (ndo->ndo_vflag >= 2) { /* if verbose output is specified */ /* at the command line */ - const u_char *payloadPtr; - - ND_PRINT((ndo, "[Payload")); - - if (!ndo->ndo_suppress_default_print) { - payloadPtr = (const u_char *) (++dataHdrPtr); - ND_PRINT((ndo, ":")); - if (EXTRACT_16BITS(&chunkDescPtr->chunkLength) < - sizeof(struct sctpDataPart)+ - sizeof(struct sctpChunkDesc)+1) { - /* Less than 1 byte of chunk payload */ - ND_PRINT((ndo, "bogus chunk length %u]", - EXTRACT_16BITS(&chunkDescPtr->chunkLength))); - return; + switch (ppid) { + case SCTP_PPID_M3UA : + print_m3ua(payloadPtr, payload_size); + break; + default: + ND_PRINT((ndo, "[Payload")); + if (!ndo->ndo_suppress_default_print) { + ND_PRINT((ndo, ":")); + ND_DEFAULTPRINT(payloadPtr, payload_size); } - ND_DEFAULTPRINT(payloadPtr, - EXTRACT_16BITS(&chunkDescPtr->chunkLength) - - (sizeof(struct sctpDataPart)+ - sizeof(struct sctpChunkDesc))); - } else ND_PRINT((ndo, "]")); - } + break; + } + } break; } case SCTP_INITIATION : |