| /* |
| * 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 <config.h> |
| #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_with_offset(ndo, ib, tdp, rlen, 0); |
| 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); |
| ND_TCHECK_SIZE(ilv); |
| invilv = ilv_valid(ndo, ilv, rlen); |
| if (invilv) { |
| ND_PRINT("%s[", ib + 1); |
| hex_print_with_offset(ndo, ib, tdp, rlen, 0); |
| ND_PRINT("\n%s]\n", ib + 1); |
| 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_with_offset(ndo, "\t\t[", tdp, ilvl-ILV_HDRL, 0); |
| } |
| |
| ilv = GO_NXT_ILV(ilv, rlen); |
| } |
| |
| return 0; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| return -1; |
| } |
| |
| 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; |
| |
| ND_TCHECK_1(tdp); |
| id = GET_BE_U_4(tdp); |
| ND_PRINT("%sKeyinfo: Key 0x%x\n", ib, id); |
| ND_TCHECK_SIZE(kdtlv); |
| 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); |
| |
| trunc: |
| nd_print_trunc(ndo); |
| return -1; |
| } |
| |
| #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; |
| |
| ND_TCHECK_SIZE(pdtlv); |
| 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_with_offset(ndo, "Bad Data val\n\t [", |
| pptr, len, 0); |
| 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_with_offset(ndo, "\t\t\tID Data[", pptr, len, 0); |
| 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); |
| |
| ND_TCHECK_SIZE(pdtlv); |
| 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; |
| } |
| |
| trunc: |
| nd_print_trunc(ndo); |
| 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; |
| |
| ND_TCHECK_SIZE(pdtlv); |
| 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; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| return -1; |
| } |
| |
| 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_with_offset(ndo, ib, pptr, len, 0); |
| 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. |
| */ |
| ND_TCHECK_SIZE(otlv); |
| 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; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| return -1; |
| } |
| |
| #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; |
| } |
| ND_TCHECK_4(pptr); |
| 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; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| return -1; |
| } |
| |
| #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; |
| } |
| ND_TCHECK_4(pptr); |
| 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; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| return -1; |
| } |
| |
| #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_TCHECK_SIZE(ilv); |
| 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_with_offset(ndo, "\t\t[", ILV_DATA(ilv), rlen, 0); |
| ND_PRINT(" ]\n"); |
| } |
| return 0; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| return -1; |
| } |
| |
| 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) { |
| ND_TCHECK_SIZE(ilv); |
| 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; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| return -1; |
| } |
| |
| |
| 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_with_offset(ndo, "\n\t\t", pptr, rlen, 0); |
| 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; |
| |
| ND_TCHECK_SIZE(tlv); |
| 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; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| return -1; |
| } |
| |
| #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; |
| |
| ND_TCHECK_SIZE(otlv); |
| 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; |
| |
| ND_TCHECK_SIZE(tltlv); |
| 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; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| return -1; |
| } |
| |
| 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; |
| } |
| |
| ND_TCHECK_4(pptr + 20); |
| 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_with_offset(ndo, "\n\t[", pptr, len, 0); |
| ND_PRINT("\n\t]"); |
| return; |
| } |
| |
| if (ndo->ndo_vflag >= 4) { |
| ND_PRINT("\n\t Raw ForCES message\n\t ["); |
| hex_print_with_offset(ndo, "\n\t ", pptr, len, 0); |
| ND_PRINT("\n\t ]"); |
| } |
| return; |
| |
| trunc: |
| nd_print_trunc(ndo); |
| } |