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-rw-r--r--contrib/tcpdump/print-ppp.c293
1 files changed, 188 insertions, 105 deletions
diff --git a/contrib/tcpdump/print-ppp.c b/contrib/tcpdump/print-ppp.c
index a685322..b6bafae 100644
--- a/contrib/tcpdump/print-ppp.c
+++ b/contrib/tcpdump/print-ppp.c
@@ -31,7 +31,7 @@
#ifndef lint
static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/print-ppp.c,v 1.108 2005/04/06 21:32:42 mcr Exp $ (LBL)";
+ "@(#) $Header: /tcpdump/master/tcpdump/print-ppp.c,v 1.108.2.4 2005/06/18 23:56:40 guy Exp $ (LBL)";
#endif
#ifdef HAVE_CONFIG_H
@@ -243,43 +243,35 @@ static const char *lcpconfopts[] = {
/* 27-254 unassigned */
#define CCPOPT_RESV 255 /* RFC1962 */
-#define CCPOPT_MIN CCPOPT_OUI
-#define CCPOPT_MAX CCPOPT_DEFLATE /* XXX: should be CCPOPT_RESV but... */
-
-static const char *ccpconfopts[] = {
- "OUI", /* (0) */
- "Pred-1", /* (1) */
- "Pred-2", /* (2) */
- "Puddle", /* (3) */
- "unassigned(4)", /* (4) */
- "unassigned(5)", /* (5) */
- "unassigned(6)", /* (6) */
- "unassigned(7)", /* (7) */
- "unassigned(8)", /* (8) */
- "unassigned(9)", /* (9) */
- "unassigned(10)", /* (10) */
- "unassigned(11)", /* (11) */
- "unassigned(12)", /* (12) */
- "unassigned(13)", /* (13) */
- "unassigned(14)", /* (14) */
- "unassigned(15)", /* (15) */
- "HP-PPC", /* (16) */
- "Stac-LZS", /* (17) */
- "MPPC", /* (18) */
- "Gand-FZA", /* (19) */
- "V.42bis", /* (20) */
- "BSD-Comp", /* (21) */
- "unassigned(22)", /* (22) */
- "LZS-DCP", /* (23) */
- "MVRCA", /* (24) */
- "DEC", /* (25) */
- "Deflate", /* (26) */
+const struct tok ccpconfopts_values[] = {
+ { CCPOPT_OUI, "OUI" },
+ { CCPOPT_PRED1, "Pred-1" },
+ { CCPOPT_PRED2, "Pred-2" },
+ { CCPOPT_PJUMP, "Puddle" },
+ { CCPOPT_HPPPC, "HP-PPC" },
+ { CCPOPT_STACLZS, "Stac-LZS" },
+ { CCPOPT_MPPC, "MPPC" },
+ { CCPOPT_GFZA, "Gand-FZA" },
+ { CCPOPT_V42BIS, "V.42bis" },
+ { CCPOPT_BSDCOMP, "BSD-Comp" },
+ { CCPOPT_LZSDCP, "LZS-DCP" },
+ { CCPOPT_MVRCA, "MVRCA" },
+ { CCPOPT_DEC, "DEC" },
+ { CCPOPT_DEFLATE, "Deflate" },
+ { CCPOPT_RESV, "Reserved"},
+ {0, NULL}
};
/* BACP Config Options */
#define BACPOPT_FPEER 1 /* RFC2125 */
+const struct tok bacconfopts_values[] = {
+ { BACPOPT_FPEER, "Favored-Peer" },
+ {0, NULL}
+};
+
+
/* SDCP - to be supported */
/* IPCP Config Options */
@@ -352,6 +344,16 @@ struct tok authalg_values[] = {
#define CALLBACK_X500 4 /* X.500 distinguished name */
#define CALLBACK_CBCP 6 /* Location is determined during CBCP nego */
+struct tok ppp_callback_values[] = {
+ { CALLBACK_AUTH, "UserAuth" },
+ { CALLBACK_DSTR, "DialString" },
+ { CALLBACK_LID, "LocalID" },
+ { CALLBACK_E164, "E.164" },
+ { CALLBACK_X500, "X.500" },
+ { CALLBACK_CBCP, "CBCP" },
+ { 0, NULL }
+};
+
/* CHAP */
#define CHAP_CHAL 1
@@ -424,24 +426,34 @@ handle_ctrl_proto(u_int proto, const u_char *pptr, int length)
code = *tptr++;
- printf("%s (0x%02x), id %u",
+ printf("%s (0x%02x), id %u, length %u",
tok2str(cpcodes, "Unknown Opcode",code),
- code,
- *tptr++); /* ID */
+ code,
+ *tptr++, /* ID */
+ length+2);
+
+ if (!vflag)
+ return;
+
+ if (length <= 4)
+ return; /* there may be a NULL confreq etc. */
TCHECK2(*tptr, 2);
len = EXTRACT_16BITS(tptr);
tptr += 2;
- if (length <= 4)
- goto print_len_and_return; /* there may be a NULL confreq etc. */
+ printf("\n\tencoded length %u (=Option(s) length %u)",len,len-4);
+
+ if (vflag>1)
+ print_unknown_data(pptr-2,"\n\t",6);
+
switch (code) {
case CPCODES_VEXT:
if (length < 11)
break;
TCHECK2(*tptr, 4);
- printf(", Magic-Num 0x%08x", EXTRACT_32BITS(tptr));
+ printf("\n\t Magic-Num 0x%08x", EXTRACT_32BITS(tptr));
tptr += 4;
TCHECK2(*tptr, 3);
printf(" Vendor: %s (%u)",
@@ -501,26 +513,44 @@ handle_ctrl_proto(u_int proto, const u_char *pptr, int length)
if (length < 6)
break;
TCHECK2(*tptr, 2);
- printf(", Rejected %s Protocol (0x%04x)",
+ printf("\n\t Rejected %s Protocol (0x%04x)",
tok2str(ppptype2str,"unknown", EXTRACT_16BITS(tptr)),
EXTRACT_16BITS(tptr));
- /* XXX: need to decode Rejected-Information? */
+ /* XXX: need to decode Rejected-Information? - hexdump for now */
+ if (len > 6) {
+ printf("\n\t Rejected Packet");
+ print_unknown_data(tptr+2,"\n\t ",len-2);
+ }
break;
case CPCODES_ECHO_REQ:
case CPCODES_ECHO_RPL:
case CPCODES_DISC_REQ:
+ if (length < 8)
+ break;
+ TCHECK2(*tptr, 4);
+ printf("\n\t Magic-Num 0x%08x", EXTRACT_32BITS(tptr));
+ /* XXX: need to decode Data? - hexdump for now */
+ if (len > 8) {
+ printf("\n\t Data");
+ print_unknown_data(tptr+4,"\n\t ",len-4);
+ }
+ break;
case CPCODES_ID:
if (length < 8)
break;
TCHECK2(*tptr, 4);
- printf(", Magic-Num 0x%08x", EXTRACT_32BITS(tptr));
- /* XXX: need to decode Data? */
+ printf("\n\t Magic-Num 0x%08x", EXTRACT_32BITS(tptr));
+ /* RFC 1661 says this is intended to be human readable */
+ if (len > 8) {
+ printf("\n\t Message\n\t ");
+ fn_printn(tptr+4,len-4,snapend);
+ }
break;
case CPCODES_TIME_REM:
if (length < 12)
break;
TCHECK2(*tptr, 4);
- printf(", Magic-Num 0x%08x", EXTRACT_32BITS(tptr));
+ printf("\n\t Magic-Num 0x%08x", EXTRACT_32BITS(tptr));
TCHECK2(*(tptr + 4), 4);
printf(", Seconds-Remaining %us", EXTRACT_32BITS(tptr + 4));
/* XXX: need to decode Message? */
@@ -530,15 +560,9 @@ handle_ctrl_proto(u_int proto, const u_char *pptr, int length)
* original pointer passed to the begin
* the PPP packet */
if (vflag <= 1)
- print_unknown_data(pptr-2,"\n\t",length+2);
+ print_unknown_data(pptr-2,"\n\t ",length+2);
break;
}
-
- print_len_and_return:
- printf(", length %u", length);
-
- if (vflag >1)
- print_unknown_data(pptr-2,"\n\t",length+2);
return;
trunc:
@@ -558,10 +582,17 @@ print_lcp_config_options(const u_char *p, int length)
opt = p[0];
if (length < len)
return 0;
+ if (len < 2) {
+ if ((opt >= LCPOPT_MIN) && (opt <= LCPOPT_MAX))
+ printf("\n\t %s Option (0x%02x), length %u (bogus, should be >= 2)", lcpconfopts[opt],opt,len);
+ else
+ printf("\n\tunknown LCP option 0x%02x", opt);
+ return 0;
+ }
if ((opt >= LCPOPT_MIN) && (opt <= LCPOPT_MAX))
- printf(", %s (%u)", lcpconfopts[opt],opt);
+ printf("\n\t %s Option (0x%02x), length %u: ", lcpconfopts[opt],opt,len);
else {
- printf(", unknown LCP option 0x%02x", opt);
+ printf("\n\tunknown LCP option 0x%02x", opt);
return len;
}
@@ -569,7 +600,7 @@ print_lcp_config_options(const u_char *p, int length)
case LCPOPT_VEXT:
if (len >= 6) {
TCHECK2(*(p + 2), 3);
- printf(" Vendor: %s (%u)",
+ printf("Vendor: %s (%u)",
tok2str(oui_values,"Unknown",EXTRACT_24BITS(p+2)),
EXTRACT_24BITS(p+2));
#if 0
@@ -586,19 +617,19 @@ print_lcp_config_options(const u_char *p, int length)
case LCPOPT_MRU:
if (len == 4) {
TCHECK2(*(p + 2), 2);
- printf(" %u", EXTRACT_16BITS(p + 2));
+ printf("%u", EXTRACT_16BITS(p + 2));
}
break;
case LCPOPT_ACCM:
if (len == 6) {
TCHECK2(*(p + 2), 4);
- printf(" 0x%08x", EXTRACT_32BITS(p + 2));
+ printf("0x%08x", EXTRACT_32BITS(p + 2));
}
break;
case LCPOPT_AP:
if (len >= 4) {
TCHECK2(*(p + 2), 2);
- printf(" %s", tok2str(ppptype2str,"Unknown Auth Proto (0x04x)",EXTRACT_16BITS(p+2)));
+ printf("%s", tok2str(ppptype2str,"Unknown Auth Proto (0x04x)",EXTRACT_16BITS(p+2)));
switch (EXTRACT_16BITS(p+2)) {
case PPP_CHAP:
@@ -627,7 +658,7 @@ print_lcp_config_options(const u_char *p, int length)
case LCPOPT_MN:
if (len == 6) {
TCHECK2(*(p + 2), 4);
- printf(" 0x%08x", EXTRACT_32BITS(p + 2));
+ printf("0x%08x", EXTRACT_32BITS(p + 2));
}
break;
case LCPOPT_PFC:
@@ -637,41 +668,21 @@ print_lcp_config_options(const u_char *p, int length)
case LCPOPT_LD:
if (len == 4) {
TCHECK2(*(p + 2), 2);
- printf(" 0x%04x", EXTRACT_16BITS(p + 2));
+ printf("0x%04x", EXTRACT_16BITS(p + 2));
}
break;
case LCPOPT_CBACK:
if (len < 3)
break;
TCHECK(p[2]);
- switch (p[2]) { /* Operation */
- case CALLBACK_AUTH:
- printf(" UserAuth");
- break;
- case CALLBACK_DSTR:
- printf(" DialString");
- break;
- case CALLBACK_LID:
- printf(" LocalID");
- break;
- case CALLBACK_E164:
- printf(" E.164");
- break;
- case CALLBACK_X500:
- printf(" X.500");
- break;
- case CALLBACK_CBCP:
- printf(" CBCP");
- break;
- default:
- printf(" unknown-operation=%u", p[2]);
- break;
- }
+ printf("Callback Operation %s (%u)",
+ tok2str(ppp_callback_values,"Unknown",p[2]),
+ p[2]);
break;
case LCPOPT_MLMRRU:
if (len == 4) {
TCHECK2(*(p + 2), 2);
- printf(" %u", EXTRACT_16BITS(p + 2));
+ printf("%u", EXTRACT_16BITS(p + 2));
}
break;
case LCPOPT_MLED:
@@ -680,29 +691,29 @@ print_lcp_config_options(const u_char *p, int length)
TCHECK(p[2]);
switch (p[2]) { /* class */
case MEDCLASS_NULL:
- printf(" Null");
+ printf("Null");
break;
case MEDCLASS_LOCAL:
- printf(" Local"); /* XXX */
+ printf("Local"); /* XXX */
break;
case MEDCLASS_IPV4:
if (len != 7)
break;
TCHECK2(*(p + 3), 4);
- printf(" IPv4 %s", ipaddr_string(p + 3));
+ printf("IPv4 %s", ipaddr_string(p + 3));
break;
case MEDCLASS_MAC:
if (len != 9)
break;
TCHECK(p[8]);
- printf(" MAC %02x:%02x:%02x:%02x:%02x:%02x",
+ printf("MAC %02x:%02x:%02x:%02x:%02x:%02x",
p[3], p[4], p[5], p[6], p[7], p[8]);
break;
case MEDCLASS_MNB:
- printf(" Magic-Num-Block"); /* XXX */
+ printf("Magic-Num-Block"); /* XXX */
break;
case MEDCLASS_PSNDN:
- printf(" PSNDN"); /* XXX */
+ printf("PSNDN"); /* XXX */
break;
}
break;
@@ -730,7 +741,15 @@ print_lcp_config_options(const u_char *p, int length)
case LCPOPT_PPPMUX:
break;
#endif
+ default:
+ if(vflag<2)
+ print_unknown_data(&p[2],"\n\t ",len-2);
+ break;
}
+
+ if (vflag>1)
+ print_unknown_data(&p[2],"\n\t ",len-2); /* exclude TLV header */
+
return len;
trunc:
@@ -872,6 +891,16 @@ handle_pap(const u_char *p, int length)
len = EXTRACT_16BITS(p);
p += 2;
+ if ((int)len > length) {
+ printf(", length %u > packet size", len);
+ return;
+ }
+ length = len;
+ if (length < (p - p0)) {
+ printf(", length %u < PAP header length", length);
+ return;
+ }
+
switch (code) {
case PAP_AREQ:
if (length - (p - p0) < 1)
@@ -943,10 +972,18 @@ print_ipcp_config_options(const u_char *p, int length)
opt = p[0];
if (length < len)
return 0;
+ if (len < 2) {
+ printf("\n\t %s Option (0x%02x), length %u (bogus, should be >= 2)",
+ tok2str(ipcpopt_values,"unknown",opt),
+ opt,
+ len);
+ return 0;
+ }
- printf(", %s (0x%02x) ",
+ printf("\n\t %s Option (0x%02x), length %u: ",
tok2str(ipcpopt_values,"unknown",opt),
- opt);
+ opt,
+ len);
switch (opt) {
case IPCPOPT_2ADDR: /* deprecated */
@@ -980,9 +1017,12 @@ print_ipcp_config_options(const u_char *p, int length)
printf("%s", ipaddr_string(p + 2));
break;
default:
- printf(", unknown-%d", opt);
+ if(vflag<2)
+ print_unknown_data(&p[2],"\n\t ",len-2);
break;
}
+ if (vflag>1)
+ print_unknown_data(&p[2],"\n\t ",len-2); /* exclude TLV header */
return len;
invlen:
@@ -1007,10 +1047,18 @@ print_ip6cp_config_options(const u_char *p, int length)
opt = p[0];
if (length < len)
return 0;
+ if (len < 2) {
+ printf("\n\t %s Option (0x%02x), length %u (bogus, should be >= 2)",
+ tok2str(ip6cpopt_values,"unknown",opt),
+ opt,
+ len);
+ return 0;
+ }
- printf(", %s (0x%02x) ",
+ printf("\n\t %s Option (0x%02x), length %u: ",
tok2str(ip6cpopt_values,"unknown",opt),
- opt);
+ opt,
+ len);
switch (opt) {
case IP6CP_IFID:
@@ -1024,9 +1072,13 @@ print_ip6cp_config_options(const u_char *p, int length)
EXTRACT_16BITS(p + 8));
break;
default:
- printf(", unknown-%d", opt);
+ if(vflag<2)
+ print_unknown_data(&p[2],"\n\t ",len-2);
break;
}
+ if (vflag>1)
+ print_unknown_data(&p[2],"\n\t ",len-2); /* exclude TLV header */
+
return len;
invlen:
@@ -1052,10 +1104,21 @@ print_ccp_config_options(const u_char *p, int length)
opt = p[0];
if (length < len)
return 0;
- if ((opt >= CCPOPT_MIN) && (opt <= CCPOPT_MAX))
- printf(", %s", ccpconfopts[opt]);
-#if 0 /* XXX */
+ if (len < 2) {
+ printf("\n\t %s Option (0x%02x), length %u (bogus, should be >= 2)",
+ tok2str(ccpconfopts_values, "Unknown", opt),
+ opt,
+ len);
+ return 0;
+ }
+
+ printf("\n\t %s Option (0x%02x), length %u:",
+ tok2str(ccpconfopts_values, "Unknown", opt),
+ opt,
+ len);
+
switch (opt) {
+ /* fall through --> default: nothing supported yet */
case CCPOPT_OUI:
case CCPOPT_PRED1:
case CCPOPT_PRED2:
@@ -1071,13 +1134,14 @@ print_ccp_config_options(const u_char *p, int length)
case CCPOPT_DEC:
case CCPOPT_DEFLATE:
case CCPOPT_RESV:
- break;
-
default:
- printf(", unknown-%d", opt);
+ if(vflag<2)
+ print_unknown_data(&p[2],"\n\t ",len-2);
break;
}
-#endif
+ if (vflag>1)
+ print_unknown_data(&p[2],"\n\t ",len-2); /* exclude TLV header */
+
return len;
trunc:
@@ -1098,13 +1162,32 @@ print_bacp_config_options(const u_char *p, int length)
opt = p[0];
if (length < len)
return 0;
- if (opt == BACPOPT_FPEER) {
+ if (len < 2) {
+ printf("\n\t %s Option (0x%02x), length %u (bogus, should be >= 2)",
+ tok2str(bacconfopts_values, "Unknown", opt),
+ opt,
+ len);
+ return 0;
+ }
+
+ printf("\n\t %s Option (0x%02x), length %u:",
+ tok2str(bacconfopts_values, "Unknown", opt),
+ opt,
+ len);
+
+ switch (opt) {
+ case BACPOPT_FPEER:
TCHECK2(*(p + 2), 4);
- printf(", Favored-Peer");
printf(", Magic-Num 0x%08x", EXTRACT_32BITS(p + 2));
- } else {
- printf(", unknown-option-%d", opt);
+ break;
+ default:
+ if(vflag<2)
+ print_unknown_data(&p[2],"\n\t ",len-2);
+ break;
}
+ if (vflag>1)
+ print_unknown_data(&p[2],"\n\t ",len-2); /* exclude TLV header */
+
return len;
trunc:
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