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-rw-r--r--print-forces.c1715
1 files changed, 1715 insertions, 0 deletions
diff --git a/print-forces.c b/print-forces.c
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+++ 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 <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(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);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-10 05:50:02 +0000