From 7adcb5b605cc1328a3084c334f4697ec9771936c Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 19:13:01 +0200 Subject: Adding upstream version 4.99.4. Signed-off-by: Daniel Baumann --- print-forces.c | 1715 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1715 insertions(+) create mode 100644 print-forces.c (limited to 'print-forces.c') diff --git a/print-forces.c b/print-forces.c new file mode 100644 index 0000000..1c7beb6 --- /dev/null +++ b/print-forces.c @@ -0,0 +1,1715 @@ +/* + * 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. + * + * Copyright (c) 2009 Mojatatu Networks, Inc + * + */ + +/* \summary: Forwarding and Control Element Separation (ForCES) Protocol printer */ + +/* specification: RFC 5810 */ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include "netdissect-stdinc.h" + +#include "netdissect.h" +#include "extract.h" + + +#define ForCES_VERS 1 +#define ForCES_HDRL 24 +#define ForCES_ALNL 4U +#define TLV_HDRL 4 +#define ILV_HDRL 8 + +#define TOM_RSVD 0x0 +#define TOM_ASSNSETUP 0x1 +#define TOM_ASSNTEARD 0x2 +#define TOM_CONFIG 0x3 +#define TOM_QUERY 0x4 +#define TOM_EVENTNOT 0x5 +#define TOM_PKTREDIR 0x6 +#define TOM_HEARTBT 0x0F +#define TOM_ASSNSETREP 0x11 +#define TOM_CONFIGREP 0x13 +#define TOM_QUERYREP 0x14 + +/* + * tom_h Flags: resv1(8b):maxtlvs(4b):resv2(2b):mintlv(2b) +*/ +#define ZERO_TTLV 0x01 +#define ZERO_MORE_TTLV 0x02 +#define ONE_MORE_TTLV 0x04 +#define ZERO_TLV 0x00 +#define ONE_TLV 0x10 +#define TWO_TLV 0x20 +#define MAX_TLV 0xF0 + +#define TTLV_T1 (ONE_MORE_TTLV|ONE_TLV) +#define TTLV_T2 (ONE_MORE_TTLV|MAX_TLV) + +struct tom_h { + uint32_t v; + uint16_t flags; + uint16_t op_msk; + const char *s; + int (*print) (netdissect_options *ndo, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); +}; + +enum { + TOM_RSV_I, + TOM_ASS_I, + TOM_AST_I, + TOM_CFG_I, + TOM_QRY_I, + TOM_EVN_I, + TOM_RED_I, + TOM_HBT_I, + TOM_ASR_I, + TOM_CNR_I, + TOM_QRR_I, + _TOM_RSV_MAX +}; +#define TOM_MAX_IND (_TOM_RSV_MAX - 1) + +static int +tom_valid(uint8_t tom) +{ + if (tom > 0) { + if (tom >= 0x7 && tom <= 0xe) + return 0; + if (tom == 0x10) + return 0; + if (tom > 0x14) + return 0; + return 1; + } else + return 0; +} + +static const char * +ForCES_node(uint32_t node) +{ + if (node <= 0x3FFFFFFF) + return "FE"; + if (node >= 0x40000000 && node <= 0x7FFFFFFF) + return "CE"; + if (node >= 0xC0000000 && node <= 0xFFFFFFEF) + return "AllMulticast"; + if (node == 0xFFFFFFFD) + return "AllCEsBroadcast"; + if (node == 0xFFFFFFFE) + return "AllFEsBroadcast"; + if (node == 0xFFFFFFFF) + return "AllBroadcast"; + + return "ForCESreserved"; + +} + +static const struct tok ForCES_ACKs[] = { + {0x0, "NoACK"}, + {0x1, "SuccessACK"}, + {0x2, "FailureACK"}, + {0x3, "AlwaysACK"}, + {0, NULL} +}; + +static const struct tok ForCES_EMs[] = { + {0x0, "EMReserved"}, + {0x1, "execute-all-or-none"}, + {0x2, "execute-until-failure"}, + {0x3, "continue-execute-on-failure"}, + {0, NULL} +}; + +static const struct tok ForCES_ATs[] = { + {0x0, "Standalone"}, + {0x1, "2PCtransaction"}, + {0, NULL} +}; + +static const struct tok ForCES_TPs[] = { + {0x0, "StartofTransaction"}, + {0x1, "MiddleofTransaction"}, + {0x2, "EndofTransaction"}, + {0x3, "abort"}, + {0, NULL} +}; + +/* + * Structure of forces header, naked of TLVs. + */ +struct forcesh { + nd_uint8_t fm_vrsvd; /* version and reserved */ +#define ForCES_V(forcesh) (GET_U_1((forcesh)->fm_vrsvd) >> 4) + nd_uint8_t fm_tom; /* type of message */ + nd_uint16_t fm_len; /* total length * 4 bytes */ +#define ForCES_BLN(forcesh) ((uint32_t)(GET_BE_U_2((forcesh)->fm_len) << 2)) + nd_uint32_t fm_sid; /* Source ID */ +#define ForCES_SID(forcesh) GET_BE_U_4((forcesh)->fm_sid) + nd_uint32_t fm_did; /* Destination ID */ +#define ForCES_DID(forcesh) GET_BE_U_4((forcesh)->fm_did) + nd_uint8_t fm_cor[8]; /* correlator */ + nd_uint32_t fm_flags; /* flags */ +#define ForCES_ACK(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0xC0000000) >> 30) +#define ForCES_PRI(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0x38000000) >> 27) +#define ForCES_RS1(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0x07000000) >> 24) +#define ForCES_EM(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0x00C00000) >> 22) +#define ForCES_AT(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0x00200000) >> 21) +#define ForCES_TP(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0x00180000) >> 19) +#define ForCES_RS2(forcesh) ((GET_BE_U_4((forcesh)->fm_flags)&0x0007FFFF) >> 0) +}; + +#define ForCES_HLN_VALID(fhl,tlen) ((tlen) >= ForCES_HDRL && \ + (fhl) >= ForCES_HDRL && \ + (fhl) == (tlen)) + +#define F_LFB_RSVD 0x0 +#define F_LFB_FEO 0x1 +#define F_LFB_FEPO 0x2 +static const struct tok ForCES_LFBs[] = { + {F_LFB_RSVD, "Invalid TLV"}, + {F_LFB_FEO, "FEObj LFB"}, + {F_LFB_FEPO, "FEProtoObj LFB"}, + {0, NULL} +}; + +/* this is defined in RFC5810 section A.2 */ +/* https://www.iana.org/assignments/forces/forces.xhtml#oper-tlv-types */ +enum { + F_OP_RSV = 0, + F_OP_SET = 1, + F_OP_SETPROP = 2, + F_OP_SETRESP = 3, + F_OP_SETPRESP = 4, + F_OP_DEL = 5, + F_OP_DELRESP = 6, + F_OP_GET = 7, + F_OP_GETPROP = 8, + F_OP_GETRESP = 9, + F_OP_GETPRESP = 10, + F_OP_REPORT = 11, + F_OP_COMMIT = 12, + F_OP_RCOMMIT = 13, + F_OP_RTRCOMP = 14, + _F_OP_MAX +}; +#define F_OP_MAX (_F_OP_MAX - 1) + +enum { + B_OP_SET = 1 << (F_OP_SET - 1), + B_OP_SETPROP = 1 << (F_OP_SETPROP - 1), + B_OP_SETRESP = 1 << (F_OP_SETRESP - 1), + B_OP_SETPRESP = 1 << (F_OP_SETPRESP - 1), + B_OP_DEL = 1 << (F_OP_DEL - 1), + B_OP_DELRESP = 1 << (F_OP_DELRESP - 1), + B_OP_GET = 1 << (F_OP_GET - 1), + B_OP_GETPROP = 1 << (F_OP_GETPROP - 1), + B_OP_GETRESP = 1 << (F_OP_GETRESP - 1), + B_OP_GETPRESP = 1 << (F_OP_GETPRESP - 1), + B_OP_REPORT = 1 << (F_OP_REPORT - 1), + B_OP_COMMIT = 1 << (F_OP_COMMIT - 1), + B_OP_RCOMMIT = 1 << (F_OP_RCOMMIT - 1), + B_OP_RTRCOMP = 1 << (F_OP_RTRCOMP - 1) +}; + +struct optlv_h { + uint16_t flags; + uint16_t op_msk; + const char *s; + int (*print) (netdissect_options *ndo, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); +}; + +static int genoptlv_print(netdissect_options *, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); +static int recpdoptlv_print(netdissect_options *, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); +static int invoptlv_print(netdissect_options *, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); + +#define OP_MIN_SIZ 8 +struct pathdata_h { + nd_uint16_t pflags; + nd_uint16_t pIDcnt; +}; + +#define B_FULLD 0x1 +#define B_SPARD 0x2 +#define B_RESTV 0x4 +#define B_KEYIN 0x8 +#define B_APPND 0x10 +#define B_TRNG 0x20 + +static const struct optlv_h OPTLV_msg[F_OP_MAX + 1] = { + /* F_OP_RSV */ {ZERO_TTLV, 0, "Invalid OPTLV", invoptlv_print}, + /* F_OP_SET */ {TTLV_T2, B_FULLD | B_SPARD, " Set", recpdoptlv_print}, + /* F_OP_SETPROP */ + {TTLV_T2, B_FULLD | B_SPARD, " SetProp", recpdoptlv_print}, + /* F_OP_SETRESP */ {TTLV_T2, B_RESTV, " SetResp", recpdoptlv_print}, + /* F_OP_SETPRESP */ {TTLV_T2, B_RESTV, " SetPropResp", recpdoptlv_print}, + /* F_OP_DEL */ {ZERO_TTLV, 0, " Del", recpdoptlv_print}, + /* F_OP_DELRESP */ {TTLV_T2, B_RESTV, " DelResp", recpdoptlv_print}, + /* F_OP_GET */ {ZERO_TTLV, 0, " Get", recpdoptlv_print}, + /* F_OP_GETPROP */ {ZERO_TTLV, 0, " GetProp", recpdoptlv_print}, + /* F_OP_GETRESP */ + {TTLV_T2, B_FULLD | B_SPARD | B_RESTV, " GetResp", recpdoptlv_print}, + /* F_OP_GETPRESP */ + {TTLV_T2, B_FULLD | B_RESTV, " GetPropResp", recpdoptlv_print}, + /* F_OP_REPORT */ + {TTLV_T2, B_FULLD | B_SPARD, " Report", recpdoptlv_print}, + /* F_OP_COMMIT */ {ZERO_TTLV, 0, " Commit", NULL}, + /* F_OP_RCOMMIT */ {TTLV_T1, B_RESTV, " RCommit", genoptlv_print}, + /* F_OP_RTRCOMP */ {ZERO_TTLV, 0, " RTRCOMP", NULL}, +}; + +static const struct optlv_h * +get_forces_optlv_h(uint16_t opt) +{ + if (opt > F_OP_MAX || opt == F_OP_RSV) + return &OPTLV_msg[F_OP_RSV]; + + return &OPTLV_msg[opt]; +} + +#define IND_SIZE 256 +#define IND_CHR ' ' +#define IND_PREF '\n' +#define IND_SUF 0x0 +static char ind_buf[IND_SIZE]; + +static char * +indent_pr(int indent, int nlpref) +{ + int i = 0; + char *r = ind_buf; + + if (indent > (IND_SIZE - 1)) + indent = IND_SIZE - 1; + + if (nlpref) { + r[i] = IND_PREF; + i++; + indent--; + } + + while (--indent >= 0) + r[i++] = IND_CHR; + + r[i] = IND_SUF; + return r; +} + +static int +op_valid(uint16_t op, uint16_t mask) +{ + if (op == 0) + return 0; + if (op <= F_OP_MAX) + return (1 << (op - 1)) & mask; /* works only for 0x0001 through 0x0010 */ + /* I guess we should allow vendor operations? */ + if (op >= 0x8000) + return 1; + return 0; +} + +#define F_TLV_RSVD 0x0000 +#define F_TLV_REDR 0x0001 +#define F_TLV_ASRS 0x0010 +#define F_TLV_ASRT 0x0011 +#define F_TLV_LFBS 0x1000 +#define F_TLV_PDAT 0x0110 +#define F_TLV_KEYI 0x0111 +#define F_TLV_FULD 0x0112 +#define F_TLV_SPAD 0x0113 +#define F_TLV_REST 0x0114 +#define F_TLV_METD 0x0115 +#define F_TLV_REDD 0x0116 +#define F_TLV_TRNG 0x0117 + + +#define F_TLV_VNST 0x8000 + +static const struct tok ForCES_TLV[] = { + {F_TLV_RSVD, "Invalid TLV"}, + {F_TLV_REDR, "REDIRECT TLV"}, + {F_TLV_ASRS, "ASResult TLV"}, + {F_TLV_ASRT, "ASTreason TLV"}, + {F_TLV_LFBS, "LFBselect TLV"}, + {F_TLV_PDAT, "PATH-DATA TLV"}, + {F_TLV_KEYI, "KEYINFO TLV"}, + {F_TLV_FULD, "FULLDATA TLV"}, + {F_TLV_SPAD, "SPARSEDATA TLV"}, + {F_TLV_REST, "RESULT TLV"}, + {F_TLV_METD, "METADATA TLV"}, + {F_TLV_REDD, "REDIRECTDATA TLV"}, + {0, NULL} +}; + +#define TLV_HLN 4 +static int +ttlv_valid(uint16_t ttlv) +{ + if (ttlv > 0) { + if (ttlv == 1 || ttlv == 0x1000) + return 1; + if (ttlv >= 0x10 && ttlv <= 0x11) + return 1; + if (ttlv >= 0x110 && ttlv <= 0x116) + return 1; + if (ttlv >= 0x8000) + return 0; /* XXX: */ + } + + return 0; +} + +struct forces_ilv { + nd_uint32_t type; + nd_uint32_t length; +}; + +struct forces_tlv { + nd_uint16_t type; + nd_uint16_t length; +}; + +#define F_ALN_LEN(len) roundup2(len, ForCES_ALNL) +#define GET_TOP_TLV(fhdr) ((const struct forces_tlv *)((fhdr) + sizeof (struct forcesh))) +#define TLV_SET_LEN(len) (F_ALN_LEN(TLV_HDRL) + (len)) +#define TLV_DATA(tlvp) ((const void*)(((const char*)(tlvp)) + TLV_SET_LEN(0))) +#define GO_NXT_TLV(tlv,rlen) ((rlen) -= F_ALN_LEN(GET_BE_U_2((tlv)->length)), \ + (const struct forces_tlv*)(((const char*)(tlv)) \ + + F_ALN_LEN(GET_BE_U_2((tlv)->length)))) +#define ILV_SET_LEN(len) (F_ALN_LEN(ILV_HDRL) + (len)) +#define ILV_DATA(ilvp) ((const void*)(((const char*)(ilvp)) + ILV_SET_LEN(0))) +#define GO_NXT_ILV(ilv,rlen) ((rlen) -= F_ALN_LEN(GET_BE_U_4((ilv)->length)), \ + (const struct forces_ilv *)(((const char*)(ilv)) \ + + F_ALN_LEN(GET_BE_U_4((ilv)->length)))) +#define INVALID_RLEN 1 +#define INVALID_STLN 2 +#define INVALID_LTLN 3 +#define INVALID_ALEN 4 + +static const struct tok ForCES_TLV_err[] = { + {INVALID_RLEN, "Invalid total length"}, + {INVALID_STLN, "xLV too short"}, + {INVALID_LTLN, "xLV too long"}, + {INVALID_ALEN, "data padding missing"}, + {0, NULL} +}; + +static u_int +tlv_valid(u_int tlvl, u_int rlen) +{ + if (rlen < TLV_HDRL) + return INVALID_RLEN; + if (tlvl < TLV_HDRL) + return INVALID_STLN; + if (tlvl > rlen) + return INVALID_LTLN; + if (rlen < F_ALN_LEN(tlvl)) + return INVALID_ALEN; + + return 0; +} + +static int +ilv_valid(netdissect_options *ndo, const struct forces_ilv *ilv, u_int rlen) +{ + if (rlen < ILV_HDRL) + return INVALID_RLEN; + if (GET_BE_U_4(ilv->length) < ILV_HDRL) + return INVALID_STLN; + if (GET_BE_U_4(ilv->length) > rlen) + return INVALID_LTLN; + if (rlen < F_ALN_LEN(GET_BE_U_4(ilv->length))) + return INVALID_ALEN; + + return 0; +} + +static int lfbselect_print(netdissect_options *, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); +static int redirect_print(netdissect_options *, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); +static int asrtlv_print(netdissect_options *, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); +static int asttlv_print(netdissect_options *, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); + +struct forces_lfbsh { + nd_uint32_t class; + nd_uint32_t instance; +}; + +#define ASSNS_OPS (B_OP_REPORT) +#define CFG_OPS (B_OP_SET|B_OP_SETPROP|B_OP_DEL|B_OP_COMMIT|B_OP_RTRCOMP) +#define CFG_ROPS (B_OP_SETRESP|B_OP_SETPRESP|B_OP_DELRESP|B_OP_RCOMMIT) +#define CFG_QY (B_OP_GET|B_OP_GETPROP) +#define CFG_QYR (B_OP_GETRESP|B_OP_GETPRESP) +#define CFG_EVN (B_OP_REPORT) + +static const struct tom_h ForCES_msg[TOM_MAX_IND + 1] = { + /* TOM_RSV_I */ {TOM_RSVD, ZERO_TTLV, 0, "Invalid message", NULL}, + /* TOM_ASS_I */ {TOM_ASSNSETUP, ZERO_MORE_TTLV | TWO_TLV, ASSNS_OPS, + "Association Setup", lfbselect_print}, + /* TOM_AST_I */ + {TOM_ASSNTEARD, TTLV_T1, 0, "Association TearDown", asttlv_print}, + /* TOM_CFG_I */ {TOM_CONFIG, TTLV_T2, CFG_OPS, "Config", lfbselect_print}, + /* TOM_QRY_I */ {TOM_QUERY, TTLV_T2, CFG_QY, "Query", lfbselect_print}, + /* TOM_EVN_I */ {TOM_EVENTNOT, TTLV_T1, CFG_EVN, "Event Notification", + lfbselect_print}, + /* TOM_RED_I */ + {TOM_PKTREDIR, TTLV_T2, 0, "Packet Redirect", redirect_print}, + /* TOM_HBT_I */ {TOM_HEARTBT, ZERO_TTLV, 0, "HeartBeat", NULL}, + /* TOM_ASR_I */ + {TOM_ASSNSETREP, TTLV_T1, 0, "Association Response", asrtlv_print}, + /* TOM_CNR_I */ {TOM_CONFIGREP, TTLV_T2, CFG_ROPS, "Config Response", + lfbselect_print}, + /* TOM_QRR_I */ + {TOM_QUERYREP, TTLV_T2, CFG_QYR, "Query Response", lfbselect_print}, +}; + +static const struct tom_h * +get_forces_tom(uint8_t tom) +{ + int i; + for (i = TOM_RSV_I; i <= TOM_MAX_IND; i++) { + const struct tom_h *th = &ForCES_msg[i]; + if (th->v == tom) + return th; + } + return &ForCES_msg[TOM_RSV_I]; +} + +struct pdata_ops { + uint32_t v; + uint16_t flags; + uint16_t op_msk; + const char *s; + int (*print) (netdissect_options *, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); +}; + +enum { + PD_RSV_I, + PD_SEL_I, + PD_FDT_I, + PD_SDT_I, + PD_RES_I, + PD_PDT_I, + _PD_RSV_MAX +}; +#define PD_MAX_IND (_TOM_RSV_MAX - 1) + +static int +pd_valid(uint16_t pd) +{ + if (pd >= F_TLV_PDAT && pd <= F_TLV_REST) + return 1; + return 0; +} + +static void +chk_op_type(netdissect_options *ndo, + uint16_t type, uint16_t msk, uint16_t omsk) +{ + if (type != F_TLV_PDAT) { + if (msk & B_KEYIN) { + if (type != F_TLV_KEYI) { + ND_PRINT("Based on flags expected KEYINFO TLV!\n"); + } + } else { + if (!(msk & omsk)) { + ND_PRINT("Illegal DATA encoding for type 0x%x programmed %x got %x\n", + type, omsk, msk); + } + } + } + +} + +#define F_SELKEY 1 +#define F_SELTABRANGE 2 +#define F_TABAPPEND 4 + +struct res_val { + nd_uint8_t result; + nd_uint8_t resv1; + nd_uint16_t resv2; +}; + +static int prestlv_print(netdissect_options *, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); +static int pkeyitlv_print(netdissect_options *, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); +static int fdatatlv_print(netdissect_options *, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); +static int sdatatlv_print(netdissect_options *, const u_char * pptr, u_int len, + uint16_t op_msk, int indent); + +static const struct pdata_ops ForCES_pdata[PD_MAX_IND + 1] = { + /* PD_RSV_I */ {0, 0, 0, "Invalid message", NULL}, + /* PD_SEL_I */ {F_TLV_KEYI, 0, 0, "KEYINFO TLV", pkeyitlv_print}, + /* PD_FDT_I */ {F_TLV_FULD, 0, B_FULLD, "FULLDATA TLV", fdatatlv_print}, + /* PD_SDT_I */ {F_TLV_SPAD, 0, B_SPARD, "SPARSEDATA TLV", sdatatlv_print}, + /* PD_RES_I */ {F_TLV_REST, 0, B_RESTV, "RESULT TLV", prestlv_print}, + /* PD_PDT_I */ + {F_TLV_PDAT, 0, 0, "Inner PATH-DATA TLV", recpdoptlv_print}, +}; + +static const struct pdata_ops * +get_forces_pd(uint16_t pd) +{ + int i; + for (i = PD_RSV_I + 1; i <= PD_MAX_IND; i++) { + const struct pdata_ops *pdo = &ForCES_pdata[i]; + if (pdo->v == pd) + return pdo; + } + return &ForCES_pdata[TOM_RSV_I]; +} + +enum { + E_SUCCESS, + E_INVALID_HEADER, + E_LENGTH_MISMATCH, + E_VERSION_MISMATCH, + E_INVALID_DESTINATION_PID, + E_LFB_UNKNOWN, + E_LFB_NOT_FOUND, + E_LFB_INSTANCE_ID_NOT_FOUND, + E_INVALID_PATH, + E_COMPONENT_DOES_NOT_EXIST, + E_EXISTS, + E_NOT_FOUND, + E_READ_ONLY, + E_INVALID_ARRAY_CREATION, + E_VALUE_OUT_OF_RANGE, + E_CONTENTS_TOO_LONG, + E_INVALID_PARAMETERS, + E_INVALID_MESSAGE_TYPE, + E_INVALID_FLAGS, + E_INVALID_TLV, + E_EVENT_ERROR, + E_NOT_SUPPORTED, + E_MEMORY_ERROR, + E_INTERNAL_ERROR, + /* 0x18-0xFE are reserved .. */ + E_UNSPECIFIED_ERROR = 0XFF +}; + +static const struct tok ForCES_errs[] = { + {E_SUCCESS, "SUCCESS"}, + {E_INVALID_HEADER, "INVALID HEADER"}, + {E_LENGTH_MISMATCH, "LENGTH MISMATCH"}, + {E_VERSION_MISMATCH, "VERSION MISMATCH"}, + {E_INVALID_DESTINATION_PID, "INVALID DESTINATION PID"}, + {E_LFB_UNKNOWN, "LFB UNKNOWN"}, + {E_LFB_NOT_FOUND, "LFB NOT FOUND"}, + {E_LFB_INSTANCE_ID_NOT_FOUND, "LFB INSTANCE ID NOT FOUND"}, + {E_INVALID_PATH, "INVALID PATH"}, + {E_COMPONENT_DOES_NOT_EXIST, "COMPONENT DOES NOT EXIST"}, + {E_EXISTS, "EXISTS ALREADY"}, + {E_NOT_FOUND, "NOT FOUND"}, + {E_READ_ONLY, "READ ONLY"}, + {E_INVALID_ARRAY_CREATION, "INVALID ARRAY CREATION"}, + {E_VALUE_OUT_OF_RANGE, "VALUE OUT OF RANGE"}, + {E_CONTENTS_TOO_LONG, "CONTENTS TOO LONG"}, + {E_INVALID_PARAMETERS, "INVALID PARAMETERS"}, + {E_INVALID_MESSAGE_TYPE, "INVALID MESSAGE TYPE"}, + {E_INVALID_FLAGS, "INVALID FLAGS"}, + {E_INVALID_TLV, "INVALID TLV"}, + {E_EVENT_ERROR, "EVENT ERROR"}, + {E_NOT_SUPPORTED, "NOT SUPPORTED"}, + {E_MEMORY_ERROR, "MEMORY ERROR"}, + {E_INTERNAL_ERROR, "INTERNAL ERROR"}, + {E_UNSPECIFIED_ERROR, "UNSPECIFIED ERROR"}, + {0, NULL} +}; + +#define RESLEN 4 + +static int +prestlv_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk _U_, int indent) +{ + const struct forces_tlv *tlv = (const struct forces_tlv *)pptr; + const u_char *tdp = (const u_char *) TLV_DATA(tlv); + const struct res_val *r = (const struct res_val *)tdp; + u_int dlen; + uint8_t result; + + /* + * pdatacnt_print() has ensured that len (the TLV length) + * >= TLV_HDRL. + */ + dlen = len - TLV_HDRL; + if (dlen != RESLEN) { + ND_PRINT("illegal RESULT-TLV: %u bytes!\n", dlen); + return -1; + } + + ND_TCHECK_SIZE(r); + result = GET_U_1(r->result); + if (result >= 0x18 && result <= 0xFE) { + ND_PRINT("illegal reserved result code: 0x%x!\n", result); + return -1; + } + + if (ndo->ndo_vflag >= 3) { + char *ib = indent_pr(indent, 0); + ND_PRINT("%s Result: %s (code 0x%x)\n", ib, + tok2str(ForCES_errs, NULL, result), result); + } + return 0; + +trunc: + nd_print_trunc(ndo); + return -1; +} + +static int +fdatatlv_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk _U_, int indent) +{ + const struct forces_tlv *tlv = (const struct forces_tlv *)pptr; + u_int rlen; + const u_char *tdp = (const u_char *) TLV_DATA(tlv); + uint16_t type; + + /* + * pdatacnt_print() or pkeyitlv_print() has ensured that len + * (the TLV length) >= TLV_HDRL. + */ + rlen = len - TLV_HDRL; + ND_TCHECK_SIZE(tlv); + type = GET_BE_U_2(tlv->type); + if (type != F_TLV_FULD) { + ND_PRINT("Error: expecting FULLDATA!\n"); + return -1; + } + + if (ndo->ndo_vflag >= 3) { + char *ib = indent_pr(indent + 2, 1); + ND_PRINT("%s[", ib + 1); + hex_print(ndo, ib, tdp, rlen); + ND_PRINT("\n%s]", ib + 1); + } + return 0; + +trunc: + nd_print_trunc(ndo); + return -1; +} + +static int +sdatailv_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk _U_, int indent) +{ + u_int rlen; + const struct forces_ilv *ilv = (const struct forces_ilv *)pptr; + int invilv; + + if (len < ILV_HDRL) { + ND_PRINT("Error: BAD SPARSEDATA-TLV!\n"); + return -1; + } + rlen = len; + indent += 1; + while (rlen != 0) { +#if 0 + ND_PRINT("Jamal - outstanding length <%u>\n", rlen); +#endif + char *ib = indent_pr(indent, 1); + const u_char *tdp = (const u_char *) ILV_DATA(ilv); + invilv = ilv_valid(ndo, ilv, rlen); + if (invilv) { + ND_PRINT("Error: %s, rlen %u\n", + tok2str(ForCES_TLV_err, NULL, invilv), rlen); + return -1; + } + if (ndo->ndo_vflag >= 3) { + u_int ilvl = GET_BE_U_4(ilv->length); + ND_PRINT("\n%s ILV: type %x length %u\n", ib + 1, + GET_BE_U_4(ilv->type), ilvl); + hex_print(ndo, "\t\t[", tdp, ilvl-ILV_HDRL); + } + + ilv = GO_NXT_ILV(ilv, rlen); + } + + return 0; +} + +static int +sdatatlv_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk, int indent) +{ + const struct forces_tlv *tlv = (const struct forces_tlv *)pptr; + u_int rlen; + const u_char *tdp = (const u_char *) TLV_DATA(tlv); + uint16_t type; + + /* + * pdatacnt_print() has ensured that len (the TLV length) + * >= TLV_HDRL. + */ + rlen = len - TLV_HDRL; + ND_TCHECK_SIZE(tlv); + type = GET_BE_U_2(tlv->type); + if (type != F_TLV_SPAD) { + ND_PRINT("Error: expecting SPARSEDATA!\n"); + return -1; + } + + return sdatailv_print(ndo, tdp, rlen, op_msk, indent); + +trunc: + nd_print_trunc(ndo); + return -1; +} + +static int +pkeyitlv_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk, int indent) +{ + const struct forces_tlv *tlv = (const struct forces_tlv *)pptr; + const u_char *tdp = (const u_char *) TLV_DATA(tlv); + const u_char *dp = tdp + 4; + const struct forces_tlv *kdtlv = (const struct forces_tlv *)dp; + uint32_t id; + char *ib = indent_pr(indent, 0); + uint16_t type, tll; + u_int invtlv; + + id = GET_BE_U_4(tdp); + ND_PRINT("%sKeyinfo: Key 0x%x\n", ib, id); + type = GET_BE_U_2(kdtlv->type); + tll = GET_BE_U_2(kdtlv->length); + invtlv = tlv_valid(tll, len); + + if (invtlv) { + ND_PRINT("%s TLV type 0x%x len %u\n", + tok2str(ForCES_TLV_err, NULL, invtlv), type, + tll); + return -1; + } + /* + * At this point, tlv_valid() has ensured that the TLV + * length is large enough but not too large (it doesn't + * go past the end of the containing TLV). + */ + tll = GET_BE_U_2(kdtlv->length); + dp = (const u_char *) TLV_DATA(kdtlv); + return fdatatlv_print(ndo, dp, tll, op_msk, indent); +} + +#define PTH_DESC_SIZE 12 + +static int +pdatacnt_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t IDcnt, uint16_t op_msk, int indent) +{ + u_int i; + uint32_t id; + char *ib = indent_pr(indent, 0); + + if ((op_msk & B_APPND) && ndo->ndo_vflag >= 3) { + ND_PRINT("%sTABLE APPEND\n", ib); + } + for (i = 0; i < IDcnt; i++) { + ND_TCHECK_4(pptr); + if (len < 4) + goto trunc; + id = GET_BE_U_4(pptr); + if (ndo->ndo_vflag >= 3) + ND_PRINT("%sID#%02u: %u\n", ib, i + 1, id); + len -= 4; + pptr += 4; + } + + if ((op_msk & B_TRNG) || (op_msk & B_KEYIN)) { + if (op_msk & B_TRNG) { + uint32_t starti, endi; + + if (len < PTH_DESC_SIZE) { + ND_PRINT("pathlength %u with key/range too short %u\n", + len, PTH_DESC_SIZE); + return -1; + } + + pptr += sizeof(struct forces_tlv); + len -= sizeof(struct forces_tlv); + + starti = GET_BE_U_4(pptr); + pptr += 4; + len -= 4; + + endi = GET_BE_U_4(pptr); + pptr += 4; + len -= 4; + + if (ndo->ndo_vflag >= 3) + ND_PRINT("%sTable range: [%u,%u]\n", ib, starti, endi); + } + + if (op_msk & B_KEYIN) { + const struct forces_tlv *keytlv; + uint16_t tll; + + if (len < PTH_DESC_SIZE) { + ND_PRINT("pathlength %u with key/range too short %u\n", + len, PTH_DESC_SIZE); + return -1; + } + + /* skip keyid */ + pptr += 4; + len -= 4; + keytlv = (const struct forces_tlv *)pptr; + /* skip header */ + pptr += sizeof(struct forces_tlv); + len -= sizeof(struct forces_tlv); + /* skip key content */ + tll = GET_BE_U_2(keytlv->length); + if (tll < TLV_HDRL) { + ND_PRINT("key content length %u < %u\n", + tll, TLV_HDRL); + return -1; + } + tll -= TLV_HDRL; + if (len < tll) { + ND_PRINT("key content too short\n"); + return -1; + } + pptr += tll; + len -= tll; + } + + } + + if (len) { + const struct forces_tlv *pdtlv = (const struct forces_tlv *)pptr; + uint16_t type; + uint16_t tlvl, tll; + u_int pad = 0; + u_int aln; + u_int invtlv; + + type = GET_BE_U_2(pdtlv->type); + tlvl = GET_BE_U_2(pdtlv->length); + invtlv = tlv_valid(tlvl, len); + if (invtlv) { + ND_PRINT("%s Outstanding bytes %u for TLV type 0x%x TLV len %u\n", + tok2str(ForCES_TLV_err, NULL, invtlv), len, type, + tlvl); + goto pd_err; + } + /* + * At this point, tlv_valid() has ensured that the TLV + * length is large enough but not too large (it doesn't + * go past the end of the containing TLV). + */ + tll = tlvl - TLV_HDRL; + aln = F_ALN_LEN(tlvl); + if (aln > tlvl) { + if (aln > len) { + ND_PRINT("Invalid padded pathdata TLV type 0x%x len %u missing %u pad bytes\n", + type, tlvl, aln - len); + } else { + pad = aln - tlvl; + } + } + if (pd_valid(type)) { + const struct pdata_ops *ops = get_forces_pd(type); + + if (ndo->ndo_vflag >= 3 && ops->v != F_TLV_PDAT) { + if (pad) + ND_PRINT("%s %s (Length %u DataLen %u pad %u Bytes)\n", + ib, ops->s, tlvl, tll, pad); + else + ND_PRINT("%s %s (Length %u DataLen %u Bytes)\n", + ib, ops->s, tlvl, tll); + } + + chk_op_type(ndo, type, op_msk, ops->op_msk); + + if (ops->print(ndo, (const u_char *)pdtlv, + tll + pad + TLV_HDRL, op_msk, + indent + 2) == -1) + return -1; + len -= (TLV_HDRL + pad + tll); + } else { + ND_PRINT("Invalid path data content type 0x%x len %u\n", + type, tlvl); +pd_err: + if (tlvl) { + hex_print(ndo, "Bad Data val\n\t [", + pptr, len); + ND_PRINT("]\n"); + + return -1; + } + } + } + return len; + +trunc: + nd_print_trunc(ndo); + return -1; +} + +static int +pdata_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk, int indent) +{ + const struct pathdata_h *pdh = (const struct pathdata_h *)pptr; + char *ib = indent_pr(indent, 0); + u_int minsize = 0; + int more_pd = 0; + uint16_t idcnt = 0; + + ND_TCHECK_SIZE(pdh); + if (len < sizeof(struct pathdata_h)) + goto trunc; + if (ndo->ndo_vflag >= 3) { + ND_PRINT("\n%sPathdata: Flags 0x%x ID count %u\n", + ib, GET_BE_U_2(pdh->pflags), + GET_BE_U_2(pdh->pIDcnt)); + } + + if (GET_BE_U_2(pdh->pflags) & F_SELKEY) { + op_msk |= B_KEYIN; + } + + /* Table GET Range operation */ + if (GET_BE_U_2(pdh->pflags) & F_SELTABRANGE) { + op_msk |= B_TRNG; + } + /* Table SET append operation */ + if (GET_BE_U_2(pdh->pflags) & F_TABAPPEND) { + op_msk |= B_APPND; + } + + pptr += sizeof(struct pathdata_h); + len -= sizeof(struct pathdata_h); + idcnt = GET_BE_U_2(pdh->pIDcnt); + minsize = idcnt * 4; + if (len < minsize) { + ND_PRINT("\t\t\ttruncated IDs expected %uB got %uB\n", minsize, + len); + hex_print(ndo, "\t\t\tID Data[", pptr, len); + ND_PRINT("]\n"); + return -1; + } + + if ((op_msk & B_TRNG) && (op_msk & B_KEYIN)) { + ND_PRINT("\t\t\tIllegal to have both Table ranges and keys\n"); + return -1; + } + + more_pd = pdatacnt_print(ndo, pptr, len, idcnt, op_msk, indent); + if (more_pd > 0) { + int consumed = len - more_pd; + pptr += consumed; + len = more_pd; + /* XXX: Argh, recurse some more */ + return recpdoptlv_print(ndo, pptr, len, op_msk, indent+1); + } else + return 0; + +trunc: + nd_print_trunc(ndo); + return -1; +} + +static int +genoptlv_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk, int indent) +{ + const struct forces_tlv *pdtlv = (const struct forces_tlv *)pptr; + uint16_t type; + u_int tlvl; + u_int invtlv; + char *ib = indent_pr(indent, 0); + + type = GET_BE_U_2(pdtlv->type); + tlvl = GET_BE_U_2(pdtlv->length); + invtlv = tlv_valid(tlvl, len); + ND_PRINT("genoptlvprint - %s TLV type 0x%x len %u\n", + tok2str(ForCES_TLV, NULL, type), type, tlvl); + if (!invtlv) { + /* + * At this point, tlv_valid() has ensured that the TLV + * length is large enough but not too large (it doesn't + * go past the end of the containing TLV). + */ + const u_char *dp = (const u_char *) TLV_DATA(pdtlv); + + if (!ttlv_valid(type)) { + ND_PRINT("%s TLV type 0x%x len %u\n", + tok2str(ForCES_TLV_err, NULL, invtlv), type, + tlvl); + return -1; + } + if (ndo->ndo_vflag >= 3) + ND_PRINT("%s%s, length %u (data length %u Bytes)", + ib, tok2str(ForCES_TLV, NULL, type), + tlvl, tlvl - TLV_HDRL); + + return pdata_print(ndo, dp, tlvl - TLV_HDRL, op_msk, indent + 1); + } else { + ND_PRINT("\t\t\tInvalid ForCES TLV type=%x", type); + return -1; + } +} + +static int +recpdoptlv_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk, int indent) +{ + const struct forces_tlv *pdtlv = (const struct forces_tlv *)pptr; + + while (len != 0) { + uint16_t type, tlvl; + u_int invtlv; + char *ib; + const u_char *dp; + + tlvl = GET_BE_U_2(pdtlv->length); + invtlv = tlv_valid(tlvl, len); + if (invtlv) { + break; + } + + /* + * At this point, tlv_valid() has ensured that the TLV + * length is large enough but not too large (it doesn't + * go past the end of the containing TLV). + */ + ib = indent_pr(indent, 0); + type = GET_BE_U_2(pdtlv->type); + dp = (const u_char *) TLV_DATA(pdtlv); + + if (ndo->ndo_vflag >= 3) + ND_PRINT("%s%s, length %u (data encapsulated %u Bytes)", + ib, tok2str(ForCES_TLV, NULL, type), + tlvl, + tlvl - TLV_HDRL); + + if (pdata_print(ndo, dp, tlvl - TLV_HDRL, op_msk, indent + 1) == -1) + return -1; + pdtlv = GO_NXT_TLV(pdtlv, len); + } + + if (len) { + ND_PRINT("\n\t\tMessy PATHDATA TLV header, type (0x%x)\n\t\texcess of %u Bytes ", + GET_BE_U_2(pdtlv->type), + len - GET_BE_U_2(pdtlv->length)); + return -1; + } + + return 0; +} + +static int +invoptlv_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk _U_, int indent) +{ + char *ib = indent_pr(indent, 1); + + if (ndo->ndo_vflag >= 3) { + ND_PRINT("%sData[", ib + 1); + hex_print(ndo, ib, pptr, len); + ND_PRINT("%s]\n", ib); + } + return -1; +} + +static int +otlv_print(netdissect_options *ndo, + const struct forces_tlv *otlv, uint16_t op_msk _U_, int indent) +{ + int rc = 0; + const u_char *dp = (const u_char *) TLV_DATA(otlv); + uint16_t type; + u_int tll; + char *ib = indent_pr(indent, 0); + const struct optlv_h *ops; + + /* + * lfbselect_print() has ensured that GET_BE_U_2(otlv->length) + * >= TLV_HDRL. + */ + type = GET_BE_U_2(otlv->type); + tll = GET_BE_U_2(otlv->length) - TLV_HDRL; + ops = get_forces_optlv_h(type); + if (ndo->ndo_vflag >= 3) { + ND_PRINT("%sOper TLV %s(0x%x) length %u\n", ib, ops->s, type, + GET_BE_U_2(otlv->length)); + } + /* rest of ops must at least have 12B {pathinfo} */ + if (tll < OP_MIN_SIZ) { + ND_PRINT("\t\tOper TLV %s(0x%x) length %u\n", ops->s, type, + GET_BE_U_2(otlv->length)); + ND_PRINT("\t\tTruncated data size %u minimum required %u\n", tll, + OP_MIN_SIZ); + return invoptlv_print(ndo, dp, tll, ops->op_msk, indent); + + } + + /* XXX - do anything with ops->flags? */ + if(ops->print) { + rc = ops->print(ndo, dp, tll, ops->op_msk, indent + 1); + } + return rc; +} + +#define ASTDLN 4 +#define ASTMCD 255 +static int +asttlv_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk _U_, int indent) +{ + uint32_t rescode; + u_int dlen; + char *ib = indent_pr(indent, 0); + + /* + * forces_type_print() has ensured that len (the TLV length) + * >= TLV_HDRL. + */ + dlen = len - TLV_HDRL; + if (dlen != ASTDLN) { + ND_PRINT("illegal ASTresult-TLV: %u bytes!\n", dlen); + return -1; + } + rescode = GET_BE_U_4(pptr); + if (rescode > ASTMCD) { + ND_PRINT("illegal ASTresult result code: %u!\n", rescode); + return -1; + } + + if (ndo->ndo_vflag >= 3) { + ND_PRINT("Teardown reason:\n%s", ib); + switch (rescode) { + case 0: + ND_PRINT("Normal Teardown"); + break; + case 1: + ND_PRINT("Loss of Heartbeats"); + break; + case 2: + ND_PRINT("Out of bandwidth"); + break; + case 3: + ND_PRINT("Out of Memory"); + break; + case 4: + ND_PRINT("Application Crash"); + break; + default: + ND_PRINT("Unknown Teardown reason"); + break; + } + ND_PRINT("(%x)\n%s", rescode, ib); + } + return 0; +} + +#define ASRDLN 4 +#define ASRMCD 3 +static int +asrtlv_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk _U_, int indent) +{ + uint32_t rescode; + u_int dlen; + char *ib = indent_pr(indent, 0); + + /* + * forces_type_print() has ensured that len (the TLV length) + * >= TLV_HDRL. + */ + dlen = len - TLV_HDRL; + if (dlen != ASRDLN) { /* id, instance, oper tlv */ + ND_PRINT("illegal ASRresult-TLV: %u bytes!\n", dlen); + return -1; + } + rescode = GET_BE_U_4(pptr); + + if (rescode > ASRMCD) { + ND_PRINT("illegal ASRresult result code: %u!\n", rescode); + return -1; + } + + if (ndo->ndo_vflag >= 3) { + ND_PRINT("\n%s", ib); + switch (rescode) { + case 0: + ND_PRINT("Success "); + break; + case 1: + ND_PRINT("FE ID invalid "); + break; + case 2: + ND_PRINT("permission denied "); + break; + default: + ND_PRINT("Unknown "); + break; + } + ND_PRINT("(%x)\n%s", rescode, ib); + } + return 0; +} + +#if 0 +/* + * XXX - not used. + */ +static int +gentltlv_print(netdissect_options *ndo, + const u_char * pptr _U_, u_int len, + uint16_t op_msk _U_, int indent _U_) +{ + u_int dlen = len - TLV_HDRL; + + if (dlen < 4) { /* at least 32 bits must exist */ + ND_PRINT("truncated TLV: %u bytes missing! ", 4 - dlen); + return -1; + } + return 0; +} +#endif + +#define RD_MIN 8 + +static int +print_metailv(netdissect_options *ndo, + const u_char * pptr, uint16_t op_msk _U_, int indent) +{ + u_int rlen; + char *ib = indent_pr(indent, 0); + /* XXX: check header length */ + const struct forces_ilv *ilv = (const struct forces_ilv *)pptr; + + /* + * print_metatlv() has ensured that len (what remains in the + * ILV) >= ILV_HDRL. + */ + rlen = GET_BE_U_4(ilv->length) - ILV_HDRL; + ND_PRINT("%sMetaID 0x%x length %u\n", ib, GET_BE_U_4(ilv->type), + GET_BE_U_4(ilv->length)); + if (ndo->ndo_vflag >= 3) { + hex_print(ndo, "\t\t[", ILV_DATA(ilv), rlen); + ND_PRINT(" ]\n"); + } + return 0; +} + +static int +print_metatlv(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk _U_, int indent) +{ + u_int dlen; + char *ib = indent_pr(indent, 0); + u_int rlen; + const struct forces_ilv *ilv = (const struct forces_ilv *)pptr; + int invilv; + + /* + * redirect_print() has ensured that len (what remains in the + * TLV) >= TLV_HDRL. + */ + dlen = len - TLV_HDRL; + rlen = dlen; + ND_PRINT("\n%s METADATA length %u\n", ib, rlen); + while (rlen != 0) { + invilv = ilv_valid(ndo, ilv, rlen); + if (invilv) { + break; + } + + /* + * At this point, ilv_valid() has ensured that the ILV + * length is large enough but not too large (it doesn't + * go past the end of the containing TLV). + */ + print_metailv(ndo, (const u_char *) ilv, 0, indent + 1); + ilv = GO_NXT_ILV(ilv, rlen); + } + + return 0; +} + + +static int +print_reddata(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk _U_, int indent) +{ + u_int dlen; + char *ib = indent_pr(indent, 0); + u_int rlen; + + dlen = len - TLV_HDRL; + rlen = dlen; + ND_PRINT("\n%s Redirect Data length %u\n", ib, rlen); + + if (ndo->ndo_vflag >= 3) { + ND_PRINT("\t\t["); + hex_print(ndo, "\n\t\t", pptr, rlen); + ND_PRINT("\n\t\t]"); + } + + return 0; +} + +static int +redirect_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk _U_, int indent) +{ + const struct forces_tlv *tlv = (const struct forces_tlv *)pptr; + u_int dlen; + u_int rlen; + u_int invtlv; + + /* + * forces_type_print() has ensured that len (the TLV length) + * >= TLV_HDRL. + */ + dlen = len - TLV_HDRL; + if (dlen <= RD_MIN) { + ND_PRINT("\n\t\ttruncated Redirect TLV: %u bytes missing! ", + RD_MIN - dlen); + return -1; + } + + rlen = dlen; + indent += 1; + while (rlen != 0) { + uint16_t type, tlvl; + + type = GET_BE_U_2(tlv->type); + tlvl = GET_BE_U_2(tlv->length); + invtlv = tlv_valid(tlvl, rlen); + if (invtlv) { + ND_PRINT("Bad Redirect data\n"); + break; + } + + /* + * At this point, tlv_valid() has ensured that the TLV + * length is large enough but not too large (it doesn't + * go past the end of the containing TLV). + */ + if (type == F_TLV_METD) { + print_metatlv(ndo, (const u_char *) TLV_DATA(tlv), + tlvl, 0, + indent); + } else if (type == F_TLV_REDD) { + print_reddata(ndo, (const u_char *) TLV_DATA(tlv), + tlvl, 0, + indent); + } else { + ND_PRINT("Unknown REDIRECT TLV 0x%x len %u\n", + type, + tlvl); + } + + tlv = GO_NXT_TLV(tlv, rlen); + } + + if (rlen) { + ND_PRINT("\n\t\tMessy Redirect TLV header, type (0x%x)\n\t\texcess of %u Bytes ", + GET_BE_U_2(tlv->type), + rlen - GET_BE_U_2(tlv->length)); + return -1; + } + + return 0; +} + +#define OP_OFF 8 +#define OP_MIN 12 + +static int +lfbselect_print(netdissect_options *ndo, + const u_char * pptr, u_int len, + uint16_t op_msk, int indent) +{ + const struct forces_lfbsh *lfbs; + const struct forces_tlv *otlv; + char *ib = indent_pr(indent, 0); + u_int dlen; + u_int rlen; + u_int invtlv; + + /* + * forces_type_print() has ensured that len (the TLV length) + * >= TLV_HDRL. + */ + dlen = len - TLV_HDRL; + if (dlen <= OP_MIN) { /* id, instance, oper tlv header .. */ + ND_PRINT("\n\t\ttruncated lfb selector: %u bytes missing! ", + OP_MIN - dlen); + return -1; + } + + /* + * At this point, we know that dlen > OP_MIN; OP_OFF < OP_MIN, so + * we also know that it's > OP_OFF. + */ + rlen = dlen - OP_OFF; + + lfbs = (const struct forces_lfbsh *)pptr; + ND_TCHECK_SIZE(lfbs); + if (ndo->ndo_vflag >= 3) { + ND_PRINT("\n%s%s(Classid %x) instance %x\n", + ib, + tok2str(ForCES_LFBs, NULL, GET_BE_U_4(lfbs->class)), + GET_BE_U_4(lfbs->class), + GET_BE_U_4(lfbs->instance)); + } + + otlv = (const struct forces_tlv *)(lfbs + 1); + + indent += 1; + while (rlen != 0) { + uint16_t type, tlvl; + + type = GET_BE_U_2(otlv->type); + tlvl = GET_BE_U_2(otlv->length); + invtlv = tlv_valid(tlvl, rlen); + if (invtlv) + break; + + /* + * At this point, tlv_valid() has ensured that the TLV + * length is large enough but not too large (it doesn't + * go past the end of the containing TLV). + */ + if (op_valid(type, op_msk)) { + otlv_print(ndo, otlv, 0, indent); + } else { + if (ndo->ndo_vflag < 3) + ND_PRINT("\n"); + ND_PRINT("\t\tINValid oper-TLV type 0x%x length %u for this ForCES message\n", + type, tlvl); + invoptlv_print(ndo, (const u_char *)otlv, rlen, 0, indent); + } + otlv = GO_NXT_TLV(otlv, rlen); + } + + if (rlen) { + ND_PRINT("\n\t\tMessy oper TLV header, type (0x%x)\n\t\texcess of %u Bytes ", + GET_BE_U_2(otlv->type), + rlen - GET_BE_U_2(otlv->length)); + return -1; + } + + return 0; + +trunc: + nd_print_trunc(ndo); + return -1; +} + +static int +forces_type_print(netdissect_options *ndo, + const u_char * pptr, const struct forcesh *fhdr _U_, + u_int mlen, const struct tom_h *tops) +{ + const struct forces_tlv *tltlv; + u_int rlen; + u_int invtlv; + int rc = 0; + u_int ttlv = 0; + + /* + * forces_print() has already checked that mlen >= ForCES_HDRL + * by calling ForCES_HLN_VALID(). + */ + rlen = mlen - ForCES_HDRL; + + if (rlen > TLV_HLN) { + if (tops->flags & ZERO_TTLV) { + ND_PRINT("<0x%x>Illegal Top level TLV!\n", tops->flags); + return -1; + } + } else { + if (tops->flags & ZERO_MORE_TTLV) + return 0; + if (tops->flags & ONE_MORE_TTLV) { + ND_PRINT("\tTop level TLV Data missing!\n"); + return -1; + } + } + + if (tops->flags & ZERO_TTLV) { + return 0; + } + + ttlv = tops->flags >> 4; + tltlv = GET_TOP_TLV(pptr); + + /*XXX: 15 top level tlvs will probably be fine + You are nuts if you send more ;-> */ + while (rlen != 0) { + uint16_t type, tlvl; + + type = GET_BE_U_2(tltlv->type); + tlvl = GET_BE_U_2(tltlv->length); + invtlv = tlv_valid(tlvl, rlen); + if (invtlv) + break; + + /* + * At this point, tlv_valid() has ensured that the TLV + * length is large enough but not too large (it doesn't + * go past the end of the packet). + */ + if (!ttlv_valid(type)) { + ND_PRINT("\n\tInvalid ForCES Top TLV type=0x%x", + type); + return -1; + } + + if (ndo->ndo_vflag >= 3) + ND_PRINT("\t%s, length %u (data length %u Bytes)", + tok2str(ForCES_TLV, NULL, type), + tlvl, + tlvl - TLV_HDRL); + + rc = tops->print(ndo, (const u_char *) TLV_DATA(tltlv), + tlvl, + tops->op_msk, 9); + if (rc < 0) { + return -1; + } + tltlv = GO_NXT_TLV(tltlv, rlen); + ttlv--; + if (ttlv <= 0) + break; + } + /* + * XXX - if ttlv != 0, does that mean that the packet was too + * short, and didn't have *enough* TLVs in it? + */ + if (rlen) { + ND_PRINT("\tMess TopTLV header: min %u, total %u advertised %u ", + TLV_HDRL, rlen, GET_BE_U_2(tltlv->length)); + return -1; + } + + return 0; +} + +void +forces_print(netdissect_options *ndo, + const u_char * pptr, u_int len) +{ + const struct forcesh *fhdr; + u_int mlen; + uint32_t flg_raw; + uint8_t tom; + const struct tom_h *tops; + int rc = 0; + + ndo->ndo_protocol = "forces"; + fhdr = (const struct forcesh *)pptr; + ND_TCHECK_SIZE(fhdr); + tom = GET_U_1(fhdr->fm_tom); + if (!tom_valid(tom)) { + ND_PRINT("Invalid ForCES message type %u\n", tom); + goto error; + } + + mlen = ForCES_BLN(fhdr); + + tops = get_forces_tom(tom); + if (tops->v == TOM_RSVD) { + ND_PRINT("\n\tUnknown ForCES message type=0x%x", tom); + goto error; + } + + ND_PRINT("\n\tForCES %s ", tops->s); + if (!ForCES_HLN_VALID(mlen, len)) { + ND_PRINT("Illegal ForCES pkt len - min %u, total recvd %u, advertised %u ", + ForCES_HDRL, len, ForCES_BLN(fhdr)); + goto error; + } + + flg_raw = GET_BE_U_4(pptr + 20); + if (ndo->ndo_vflag >= 1) { + ND_PRINT("\n\tForCES Version %u len %uB flags 0x%08x ", + ForCES_V(fhdr), mlen, flg_raw); + ND_PRINT("\n\tSrcID 0x%x(%s) DstID 0x%x(%s) Correlator 0x%" PRIx64, + ForCES_SID(fhdr), ForCES_node(ForCES_SID(fhdr)), + ForCES_DID(fhdr), ForCES_node(ForCES_DID(fhdr)), + GET_BE_U_8(fhdr->fm_cor)); + + } + if (ndo->ndo_vflag >= 2) { + ND_PRINT("\n\tForCES flags:\n\t %s(0x%x), prio=%u, %s(0x%x),\n\t %s(0x%x), %s(0x%x)\n", + tok2str(ForCES_ACKs, "ACKUnknown", ForCES_ACK(fhdr)), + ForCES_ACK(fhdr), + ForCES_PRI(fhdr), + tok2str(ForCES_EMs, "EMUnknown", ForCES_EM(fhdr)), + ForCES_EM(fhdr), + tok2str(ForCES_ATs, "ATUnknown", ForCES_AT(fhdr)), + ForCES_AT(fhdr), + tok2str(ForCES_TPs, "TPUnknown", ForCES_TP(fhdr)), + ForCES_TP(fhdr)); + ND_PRINT("\t Extra flags: rsv(b5-7) 0x%x rsv(b13-31) 0x%x\n", + ForCES_RS1(fhdr), ForCES_RS2(fhdr)); + } + rc = forces_type_print(ndo, pptr, fhdr, mlen, tops); + if (rc < 0) { +error: + hex_print(ndo, "\n\t[", pptr, len); + ND_PRINT("\n\t]"); + return; + } + + if (ndo->ndo_vflag >= 4) { + ND_PRINT("\n\t Raw ForCES message\n\t ["); + hex_print(ndo, "\n\t ", pptr, len); + ND_PRINT("\n\t ]"); + } + return; + +trunc: + nd_print_trunc(ndo); +} -- cgit v1.2.3