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203e1d5ebf
tcpdump/tcpdump-3.9.8-ikev2.patch
Miroslav Lichvar 203e1d5ebf - update IKEv2 support
2007-12-06 15:31:44 +00:00

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Index: tcpdump/print-isakmp.c
===================================================================
RCS file: /tcpdump/master/tcpdump/print-isakmp.c,v
retrieving revision 1.51
retrieving revision 1.59
diff -u -r1.51 -r1.59
--- tcpdump/print-isakmp.c 7 Apr 2005 00:28:17 -0000 1.51
+++ tcpdump/print-isakmp.c 27 Nov 2007 03:57:20 -0000 1.59
@@ -30,9 +30,10 @@
#ifndef lint
static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/print-isakmp.c,v 1.51 2005/04/07 00:28:17 mcr Exp $ (LBL)";
+ "@(#) $Header: /tcpdump/master/tcpdump/print-isakmp.c,v 1.59 2007/11/27 03:57:20 mcr Exp $ (LBL)";
#endif
+#define NETDISSECT_REWORKED
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
@@ -59,39 +60,75 @@
#define sockaddr_storage sockaddr
#endif
-static const u_char *isakmp_sa_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_p_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_t_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_ke_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_id_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_cert_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_cr_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_sig_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_hash_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_nonce_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_n_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_d_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_vid_print(const struct isakmp_gen *,
- u_int, const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_sub0_print(u_char, const struct isakmp_gen *,
+#define DECLARE_PRINTER(func) static const u_char *ike##func##_print( \
+ netdissect_options *ndo, u_char tpay, \
+ const struct isakmp_gen *ext, \
+ u_int item_len, \
+ const u_char *end_pointer, \
+ u_int32_t phase,\
+ u_int32_t doi0, \
+ u_int32_t proto0, int depth)
+
+DECLARE_PRINTER(v1_sa);
+DECLARE_PRINTER(v1_p);
+DECLARE_PRINTER(v1_t);
+DECLARE_PRINTER(v1_ke);
+DECLARE_PRINTER(v1_id);
+DECLARE_PRINTER(v1_cert);
+DECLARE_PRINTER(v1_cr);
+DECLARE_PRINTER(v1_sig);
+DECLARE_PRINTER(v1_hash);
+DECLARE_PRINTER(v1_nonce);
+DECLARE_PRINTER(v1_n);
+DECLARE_PRINTER(v1_d);
+DECLARE_PRINTER(v1_vid);
+
+DECLARE_PRINTER(v2_sa);
+DECLARE_PRINTER(v2_ke);
+DECLARE_PRINTER(v2_ID);
+DECLARE_PRINTER(v2_cert);
+DECLARE_PRINTER(v2_cr);
+DECLARE_PRINTER(v2_auth);
+DECLARE_PRINTER(v2_nonce);
+DECLARE_PRINTER(v2_n);
+DECLARE_PRINTER(v2_d);
+DECLARE_PRINTER(v2_vid);
+DECLARE_PRINTER(v2_TS);
+DECLARE_PRINTER(v2_cp);
+DECLARE_PRINTER(v2_eap);
+
+static const u_char *ikev2_e_print(netdissect_options *ndo,
+ struct isakmp *base,
+ u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len,
+ const u_char *end_pointer,
+ u_int32_t phase,
+ u_int32_t doi0,
+ u_int32_t proto0, int depth);
+
+
+static const u_char *ike_sub0_print(netdissect_options *ndo,u_char, const struct isakmp_gen *,
const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
-static const u_char *isakmp_sub_print(u_char, const struct isakmp_gen *,
+static const u_char *ikev1_sub_print(netdissect_options *ndo,u_char, const struct isakmp_gen *,
const u_char *, u_int32_t, u_int32_t, u_int32_t, int);
+
+static const u_char *ikev2_sub_print(netdissect_options *ndo,
+ struct isakmp *base,
+ u_char np, const struct isakmp_gen *ext,
+ const u_char *ep, u_int32_t phase,
+ u_int32_t doi, u_int32_t proto,
+ int depth);
+
+
static char *numstr(int);
static void safememcpy(void *, const void *, size_t);
+static void
+ikev1_print(netdissect_options *ndo,
+ const u_char *bp, u_int length,
+ const u_char *bp2, struct isakmp *base);
+
#define MAXINITIATORS 20
int ninitiator = 0;
struct {
@@ -107,36 +144,73 @@
/* isakmp->np */
static const char *npstr[] = {
- "none", "sa", "p", "t", "ke", "id", "cert", "cr", "hash",
- "sig", "nonce", "n", "d", "vid"
+ "none", "sa", "p", "t", "ke", "id", "cert", "cr", "hash", /* 0 - 8 */
+ "sig", "nonce", "n", "d", "vid", /* 9 - 13 */
+ "pay14", "pay15", "pay16", "pay17", "pay18", /* 14- 18 */
+ "pay19", "pay20", "pay21", "pay22", "pay23", /* 19- 23 */
+ "pay24", "pay25", "pay26", "pay27", "pay28", /* 24- 28 */
+ "pay29", "pay30", "pay31", "pay32", /* 29- 32 */
+ "v2sa", "v2ke", "v2IDi", "v2IDr", "v2cert",/* 33- 37 */
+ "v2cr", "v2auth","v2nonce", "v2n", "v2d", /* 38- 42 */
+ "v2vid", "v2TSi", "v2TSr", "v2e", "v2cp", /* 43- 47 */
+ "v2eap", /* 48 */
+
};
/* isakmp->np */
-static const u_char *(*npfunc[])(const struct isakmp_gen *, u_int,
- const u_char *, u_int32_t, u_int32_t, u_int32_t, int) = {
+static const u_char *(*npfunc[])(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len,
+ const u_char *end_pointer,
+ u_int32_t phase,
+ u_int32_t doi0,
+ u_int32_t proto0, int depth) = {
NULL,
- isakmp_sa_print,
- isakmp_p_print,
- isakmp_t_print,
- isakmp_ke_print,
- isakmp_id_print,
- isakmp_cert_print,
- isakmp_cr_print,
- isakmp_hash_print,
- isakmp_sig_print,
- isakmp_nonce_print,
- isakmp_n_print,
- isakmp_d_print,
- isakmp_vid_print,
+ ikev1_sa_print,
+ ikev1_p_print,
+ ikev1_t_print,
+ ikev1_ke_print,
+ ikev1_id_print,
+ ikev1_cert_print,
+ ikev1_cr_print,
+ ikev1_hash_print,
+ ikev1_sig_print,
+ ikev1_nonce_print,
+ ikev1_n_print,
+ ikev1_d_print,
+ ikev1_vid_print, /* 13 */
+ NULL, NULL, NULL, NULL, NULL, /* 14- 18 */
+ NULL, NULL, NULL, NULL, NULL, /* 19- 23 */
+ NULL, NULL, NULL, NULL, NULL, /* 24- 28 */
+ NULL, NULL, NULL, NULL, /* 29- 32 */
+ ikev2_sa_print, /* 33 */
+ ikev2_ke_print, /* 34 */
+ ikev2_ID_print, /* 35 */
+ ikev2_ID_print, /* 36 */
+ ikev2_cert_print, /* 37 */
+ ikev2_cr_print, /* 38 */
+ ikev2_auth_print, /* 39 */
+ ikev2_nonce_print, /* 40 */
+ ikev2_n_print, /* 41 */
+ ikev2_d_print, /* 42 */
+ ikev2_vid_print, /* 43 */
+ ikev2_TS_print, /* 44 */
+ ikev2_TS_print, /* 45 */
+ NULL, /* ikev2_e_print,*/ /* 46 - special */
+ ikev2_cp_print, /* 47 */
+ ikev2_eap_print, /* 48 */
};
/* isakmp->etype */
static const char *etypestr[] = {
- "none", "base", "ident", "auth", "agg", "inf", NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- "oakley-quick", "oakley-newgroup",
+/* IKEv1 exchange types */
+ "none", "base", "ident", "auth", "agg", "inf", NULL, NULL, /* 0-7 */
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 8-15 */
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 16-23 */
+ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* 24-31 */
+ "oakley-quick", "oakley-newgroup", /* 32-33 */
+/* IKEv2 exchange types */
+ "ikev2_init", "ikev2_auth", "child_sa", "inf2" /* 34-37 */
};
#define STR_OR_ID(x, tab) \
@@ -145,6 +219,13 @@
#define NPSTR(x) STR_OR_ID(x, npstr)
#define ETYPESTR(x) STR_OR_ID(x, etypestr)
+#define CHECKLEN(p, np) \
+ if (ep < (u_char *)(p)) { \
+ ND_PRINT((ndo," [|%s]", NPSTR(np))); \
+ goto done; \
+ }
+
+
#define NPFUNC(x) \
(((x) < sizeof(npfunc)/sizeof(npfunc[0]) && npfunc[(x)]) \
? npfunc[(x)] : NULL)
@@ -321,18 +402,58 @@
return 0;
}
-static int
-rawprint(caddr_t loc, size_t len)
+static void
+hexprint(netdissect_options *ndo, caddr_t loc, size_t len)
{
- static u_char *p;
+ u_char *p;
size_t i;
- TCHECK2(*loc, len);
-
p = (u_char *)loc;
for (i = 0; i < len; i++)
- printf("%02x", p[i] & 0xff);
+ ND_PRINT((ndo,"%02x", p[i] & 0xff));
+}
+
+static int
+rawprint(netdissect_options *ndo, caddr_t loc, size_t len)
+{
+ ND_TCHECK2(*loc, len);
+
+ hexprint(ndo, loc, len);
+ return 1;
+trunc:
+ return 0;
+}
+
+
+/*
+ * returns false if we run out of data buffer
+ */
+static int ike_show_somedata(struct netdissect_options *ndo,
+ const u_char *cp, const u_char *ep)
+{
+ /* there is too much data, just show some of it */
+ const u_char *end = ep - 20;
+ int elen = 20;
+ int len = ep - cp;
+ if(len > 10) {
+ len = 10;
+ }
+
+ /* really shouldn't happen because of above */
+ if(end < cp + len) {
+ end = cp+len;
+ elen = ep - end;
+ }
+
+ ND_PRINT((ndo," data=("));
+ if(!rawprint(ndo, (caddr_t)(cp), len)) goto trunc;
+ ND_PRINT((ndo, "..."));
+ if(elen) {
+ if(!rawprint(ndo, (caddr_t)(end), elen)) goto trunc;
+ }
+ ND_PRINT((ndo,")"));
return 1;
+
trunc:
return 0;
}
@@ -344,8 +465,9 @@
};
static const u_char *
-isakmp_attrmap_print(const u_char *p, const u_char *ep,
- const struct attrmap *map, size_t nmap)
+ikev1_attrmap_print(netdissect_options *ndo,
+ const u_char *p, const u_char *ep,
+ const struct attrmap *map, size_t nmap)
{
u_int16_t *q;
int totlen;
@@ -357,33 +479,33 @@
else
totlen = 4 + EXTRACT_16BITS(&q[1]);
if (ep < p + totlen) {
- printf("[|attr]");
+ ND_PRINT((ndo,"[|attr]"));
return ep + 1;
}
- printf("(");
+ ND_PRINT((ndo,"("));
t = EXTRACT_16BITS(&q[0]) & 0x7fff;
if (map && t < nmap && map[t].type)
- printf("type=%s ", map[t].type);
+ ND_PRINT((ndo,"type=%s ", map[t].type));
else
- printf("type=#%d ", t);
+ ND_PRINT((ndo,"type=#%d ", t));
if (p[0] & 0x80) {
- printf("value=");
+ ND_PRINT((ndo,"value="));
v = EXTRACT_16BITS(&q[1]);
if (map && t < nmap && v < map[t].nvalue && map[t].value[v])
- printf("%s", map[t].value[v]);
+ ND_PRINT((ndo,"%s", map[t].value[v]));
else
- rawprint((caddr_t)&q[1], 2);
+ rawprint(ndo, (caddr_t)&q[1], 2);
} else {
- printf("len=%d value=", EXTRACT_16BITS(&q[1]));
- rawprint((caddr_t)&p[4], EXTRACT_16BITS(&q[1]));
+ ND_PRINT((ndo,"len=%d value=", EXTRACT_16BITS(&q[1])));
+ rawprint(ndo, (caddr_t)&p[4], EXTRACT_16BITS(&q[1]));
}
- printf(")");
+ ND_PRINT((ndo,")"));
return p + totlen;
}
static const u_char *
-isakmp_attr_print(const u_char *p, const u_char *ep)
+ikev1_attr_print(netdissect_options *ndo, const u_char *p, const u_char *ep)
{
u_int16_t *q;
int totlen;
@@ -395,129 +517,166 @@
else
totlen = 4 + EXTRACT_16BITS(&q[1]);
if (ep < p + totlen) {
- printf("[|attr]");
+ ND_PRINT((ndo,"[|attr]"));
return ep + 1;
}
- printf("(");
+ ND_PRINT((ndo,"("));
t = EXTRACT_16BITS(&q[0]) & 0x7fff;
- printf("type=#%d ", t);
+ ND_PRINT((ndo,"type=#%d ", t));
if (p[0] & 0x80) {
- printf("value=");
+ ND_PRINT((ndo,"value="));
t = q[1];
- rawprint((caddr_t)&q[1], 2);
+ rawprint(ndo, (caddr_t)&q[1], 2);
} else {
- printf("len=%d value=", EXTRACT_16BITS(&q[1]));
- rawprint((caddr_t)&p[2], EXTRACT_16BITS(&q[1]));
+ ND_PRINT((ndo,"len=%d value=", EXTRACT_16BITS(&q[1])));
+ rawprint(ndo, (caddr_t)&p[2], EXTRACT_16BITS(&q[1]));
}
- printf(")");
+ ND_PRINT((ndo,")"));
return p + totlen;
}
static const u_char *
-isakmp_sa_print(const struct isakmp_gen *ext,
+ikev1_sa_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext,
u_int item_len _U_,
const u_char *ep, u_int32_t phase, u_int32_t doi0 _U_,
u_int32_t proto0, int depth)
{
- const struct isakmp_pl_sa *p;
- struct isakmp_pl_sa sa;
+ const struct ikev1_pl_sa *p;
+ struct ikev1_pl_sa sa;
const u_int32_t *q;
u_int32_t doi, sit, ident;
const u_char *cp, *np;
int t;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_SA));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_SA)));
- p = (struct isakmp_pl_sa *)ext;
- TCHECK(*p);
+ p = (struct ikev1_pl_sa *)ext;
+ ND_TCHECK(*p);
safememcpy(&sa, ext, sizeof(sa));
doi = ntohl(sa.doi);
sit = ntohl(sa.sit);
if (doi != 1) {
- printf(" doi=%d", doi);
- printf(" situation=%u", (u_int32_t)ntohl(sa.sit));
+ ND_PRINT((ndo," doi=%d", doi));
+ ND_PRINT((ndo," situation=%u", (u_int32_t)ntohl(sa.sit)));
return (u_char *)(p + 1);
}
- printf(" doi=ipsec");
+ ND_PRINT((ndo," doi=ipsec"));
q = (u_int32_t *)&sa.sit;
- printf(" situation=");
+ ND_PRINT((ndo," situation="));
t = 0;
if (sit & 0x01) {
- printf("identity");
+ ND_PRINT((ndo,"identity"));
t++;
}
if (sit & 0x02) {
- printf("%ssecrecy", t ? "+" : "");
+ ND_PRINT((ndo,"%ssecrecy", t ? "+" : ""));
t++;
}
if (sit & 0x04)
- printf("%sintegrity", t ? "+" : "");
+ ND_PRINT((ndo,"%sintegrity", t ? "+" : ""));
np = (u_char *)ext + sizeof(sa);
if (sit != 0x01) {
- TCHECK2(*(ext + 1), sizeof(ident));
+ ND_TCHECK2(*(ext + 1), sizeof(ident));
safememcpy(&ident, ext + 1, sizeof(ident));
- printf(" ident=%u", (u_int32_t)ntohl(ident));
+ ND_PRINT((ndo," ident=%u", (u_int32_t)ntohl(ident)));
np += sizeof(ident);
}
ext = (struct isakmp_gen *)np;
- TCHECK(*ext);
+ ND_TCHECK(*ext);
- cp = isakmp_sub_print(ISAKMP_NPTYPE_P, ext, ep, phase, doi, proto0,
+ cp = ikev1_sub_print(ndo, ISAKMP_NPTYPE_P, ext, ep, phase, doi, proto0,
depth);
return cp;
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_SA));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_SA)));
return NULL;
}
static const u_char *
-isakmp_p_print(const struct isakmp_gen *ext, u_int item_len _U_,
+ikev1_p_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
const u_char *ep, u_int32_t phase, u_int32_t doi0,
u_int32_t proto0 _U_, int depth)
{
- const struct isakmp_pl_p *p;
- struct isakmp_pl_p prop;
+ const struct ikev1_pl_p *p;
+ struct ikev1_pl_p prop;
const u_char *cp;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_P));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_P)));
- p = (struct isakmp_pl_p *)ext;
- TCHECK(*p);
+ p = (struct ikev1_pl_p *)ext;
+ ND_TCHECK(*p);
safememcpy(&prop, ext, sizeof(prop));
- printf(" #%d protoid=%s transform=%d",
- prop.p_no, PROTOIDSTR(prop.prot_id), prop.num_t);
+ ND_PRINT((ndo," #%d protoid=%s transform=%d",
+ prop.p_no, PROTOIDSTR(prop.prot_id), prop.num_t));
if (prop.spi_size) {
- printf(" spi=");
- if (!rawprint((caddr_t)(p + 1), prop.spi_size))
+ ND_PRINT((ndo," spi="));
+ if (!rawprint(ndo, (caddr_t)(p + 1), prop.spi_size))
goto trunc;
}
ext = (struct isakmp_gen *)((u_char *)(p + 1) + prop.spi_size);
- TCHECK(*ext);
-
- cp = isakmp_sub_print(ISAKMP_NPTYPE_T, ext, ep, phase, doi0,
- prop.prot_id, depth);
-
+ ND_TCHECK(*ext);
+
+ cp = ikev1_sub_print(ndo, ISAKMP_NPTYPE_T, ext, ep, phase, doi0,
+ prop.prot_id, depth);
+
return cp;
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_P));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_P)));
return NULL;
}
-static const char *isakmp_p_map[] = {
+static const char *ikev1_p_map[] = {
NULL, "ike",
};
+static const char *ikev2_t_type_map[]={
+ NULL, "encr", "prf", "integ", "dh", "esn"
+};
+
static const char *ah_p_map[] = {
NULL, "(reserved)", "md5", "sha", "1des",
"sha2-256", "sha2-384", "sha2-512",
};
+static const char *prf_p_map[] = {
+ NULL, "hmac-md5", "hmac-sha", "hmac-tiger",
+ "aes128_xcbc"
+};
+
+static const char *integ_p_map[] = {
+ NULL, "hmac-md5", "hmac-sha", "dec-mac",
+ "kpdk-md5", "aes-xcbc"
+};
+
+static const char *esn_p_map[] = {
+ "no-esn", "esn"
+};
+
+static const char *dh_p_map[] = {
+ NULL, "modp768",
+ "modp1024", /* group 2 */
+ "EC2N 2^155", /* group 3 */
+ "EC2N 2^185", /* group 4 */
+ "modp1536", /* group 5 */
+ "iana-grp06", "iana-grp07", /* reserved */
+ "iana-grp08", "iana-grp09",
+ "iana-grp10", "iana-grp11",
+ "iana-grp12", "iana-grp13",
+ "modp2048", /* group 14 */
+ "modp3072", /* group 15 */
+ "modp4096", /* group 16 */
+ "modp6144", /* group 17 */
+ "modp8192", /* group 18 */
+};
+
static const char *esp_p_map[] = {
NULL, "1des-iv64", "1des", "3des", "rc5", "idea", "cast",
"blowfish", "3idea", "1des-iv32", "rc4", "null", "aes"
@@ -531,8 +690,21 @@
{ NULL, 0, { NULL } },
{ "lifetype", 3, { NULL, "sec", "kb", }, },
{ "life", 0, { NULL } },
- { "group desc", 5, { NULL, "modp768", "modp1024", "EC2N 2^155",
- "EC2N 2^185", }, },
+ { "group desc", 18, { NULL, "modp768",
+ "modp1024", /* group 2 */
+ "EC2N 2^155", /* group 3 */
+ "EC2N 2^185", /* group 4 */
+ "modp1536", /* group 5 */
+ "iana-grp06", "iana-grp07", /* reserved */
+ "iana-grp08", "iana-grp09",
+ "iana-grp10", "iana-grp11",
+ "iana-grp12", "iana-grp13",
+ "modp2048", /* group 14 */
+ "modp3072", /* group 15 */
+ "modp4096", /* group 16 */
+ "modp6144", /* group 17 */
+ "modp8192", /* group 18 */
+ }, },
{ "enc mode", 3, { NULL, "tunnel", "transport", }, },
{ "auth", 5, { NULL, "hmac-md5", "hmac-sha1", "1des-mac", "keyed", }, },
{ "keylen", 0, { NULL } },
@@ -541,6 +713,17 @@
{ "privalg", 0, { NULL } },
};
+const struct attrmap encr_t_map[] = {
+ { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 0, 1 */
+ { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 2, 3 */
+ { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 4, 5 */
+ { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 6, 7 */
+ { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 8, 9 */
+ { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 10,11*/
+ { NULL, 0, { NULL } }, { NULL, 0, { NULL } }, /* 12,13*/
+ { "keylen", 14, { NULL }},
+};
+
const struct attrmap oakley_t_map[] = {
{ NULL, 0, { NULL } },
{ "enc", 8, { NULL, "1des", "idea", "blowfish", "rc5",
@@ -549,8 +732,21 @@
"sha2-256", "sha2-384", "sha2-512", }, },
{ "auth", 6, { NULL, "preshared", "dss", "rsa sig", "rsa enc",
"rsa enc revised", }, },
- { "group desc", 5, { NULL, "modp768", "modp1024", "EC2N 2^155",
- "EC2N 2^185", }, },
+ { "group desc", 18, { NULL, "modp768",
+ "modp1024", /* group 2 */
+ "EC2N 2^155", /* group 3 */
+ "EC2N 2^185", /* group 4 */
+ "modp1536", /* group 5 */
+ "iana-grp06", "iana-grp07", /* reserved */
+ "iana-grp08", "iana-grp09",
+ "iana-grp10", "iana-grp11",
+ "iana-grp12", "iana-grp13",
+ "modp2048", /* group 14 */
+ "modp3072", /* group 15 */
+ "modp4096", /* group 16 */
+ "modp6144", /* group 17 */
+ "modp8192", /* group 18 */
+ }, },
{ "group type", 4, { NULL, "MODP", "ECP", "EC2N", }, },
{ "group prime", 0, { NULL } },
{ "group gen1", 0, { NULL } },
@@ -566,27 +762,28 @@
};
static const u_char *
-isakmp_t_print(const struct isakmp_gen *ext, u_int item_len,
- const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_,
- u_int32_t proto, int depth _U_)
+ikev1_t_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len,
+ const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto, int depth _U_)
{
- const struct isakmp_pl_t *p;
- struct isakmp_pl_t t;
+ const struct ikev1_pl_t *p;
+ struct ikev1_pl_t t;
const u_char *cp;
const char *idstr;
const struct attrmap *map;
size_t nmap;
const u_char *ep2;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_T));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_T)));
- p = (struct isakmp_pl_t *)ext;
- TCHECK(*p);
+ p = (struct ikev1_pl_t *)ext;
+ ND_TCHECK(*p);
safememcpy(&t, ext, sizeof(t));
switch (proto) {
case 1:
- idstr = STR_OR_ID(t.t_id, isakmp_p_map);
+ idstr = STR_OR_ID(t.t_id, ikev1_p_map);
map = oakley_t_map;
nmap = sizeof(oakley_t_map)/sizeof(oakley_t_map[0]);
break;
@@ -613,57 +810,59 @@
}
if (idstr)
- printf(" #%d id=%s ", t.t_no, idstr);
+ ND_PRINT((ndo," #%d id=%s ", t.t_no, idstr));
else
- printf(" #%d id=%d ", t.t_no, t.t_id);
+ ND_PRINT((ndo," #%d id=%d ", t.t_no, t.t_id));
cp = (u_char *)(p + 1);
ep2 = (u_char *)p + item_len;
while (cp < ep && cp < ep2) {
if (map && nmap) {
- cp = isakmp_attrmap_print(cp, (ep < ep2) ? ep : ep2,
+ cp = ikev1_attrmap_print(ndo, cp, (ep < ep2) ? ep : ep2,
map, nmap);
} else
- cp = isakmp_attr_print(cp, (ep < ep2) ? ep : ep2);
+ cp = ikev1_attr_print(ndo, cp, (ep < ep2) ? ep : ep2);
}
if (ep < ep2)
- printf("...");
+ ND_PRINT((ndo,"..."));
return cp;
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_T));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_T)));
return NULL;
}
static const u_char *
-isakmp_ke_print(const struct isakmp_gen *ext, u_int item_len _U_,
- const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi _U_,
- u_int32_t proto _U_, int depth _U_)
+ikev1_ke_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
struct isakmp_gen e;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_KE));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_KE)));
- TCHECK(*ext);
+ ND_TCHECK(*ext);
safememcpy(&e, ext, sizeof(e));
- printf(" key len=%d", ntohs(e.len) - 4);
- if (2 < vflag && 4 < ntohs(e.len)) {
- printf(" ");
- if (!rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4))
+ ND_PRINT((ndo," key len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
goto trunc;
}
return (u_char *)ext + ntohs(e.len);
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_KE));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_KE)));
return NULL;
}
static const u_char *
-isakmp_id_print(const struct isakmp_gen *ext, u_int item_len _U_,
- const u_char *ep _U_, u_int32_t phase, u_int32_t doi _U_,
- u_int32_t proto _U_, int depth _U_)
+ikev1_id_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
#define USE_IPSECDOI_IN_PHASE1 1
- const struct isakmp_pl_id *p;
- struct isakmp_pl_id id;
+ const struct ikev1_pl_id *p;
+ struct ikev1_pl_id id;
static const char *idtypestr[] = {
"IPv4", "IPv4net", "IPv6", "IPv6net",
};
@@ -675,10 +874,10 @@
int len;
const u_char *data;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_ID));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_ID)));
- p = (struct isakmp_pl_id *)ext;
- TCHECK(*p);
+ p = (struct ikev1_pl_id *)ext;
+ ND_TCHECK(*p);
safememcpy(&id, ext, sizeof(id));
if (sizeof(*p) < item_len) {
data = (u_char *)(p + 1);
@@ -689,16 +888,16 @@
}
#if 0 /*debug*/
- printf(" [phase=%d doi=%d proto=%d]", phase, doi, proto);
+ ND_PRINT((ndo," [phase=%d doi=%d proto=%d]", phase, doi, proto));
#endif
switch (phase) {
#ifndef USE_IPSECDOI_IN_PHASE1
case 1:
#endif
default:
- printf(" idtype=%s", STR_OR_ID(id.d.id_type, idtypestr));
- printf(" doi_data=%u",
- (u_int32_t)(ntohl(id.d.doi_data) & 0xffffff));
+ ND_PRINT((ndo," idtype=%s", STR_OR_ID(id.d.id_type, idtypestr)));
+ ND_PRINT((ndo," doi_data=%u",
+ (u_int32_t)(ntohl(id.d.doi_data) & 0xffffff)));
break;
#ifdef USE_IPSECDOI_IN_PHASE1
@@ -711,42 +910,42 @@
struct protoent *pe;
p = (struct ipsecdoi_id *)ext;
- TCHECK(*p);
+ ND_TCHECK(*p);
safememcpy(&id, ext, sizeof(id));
- printf(" idtype=%s", STR_OR_ID(id.type, ipsecidtypestr));
+ ND_PRINT((ndo," idtype=%s", STR_OR_ID(id.type, ipsecidtypestr)));
if (id.proto_id) {
#ifndef WIN32
setprotoent(1);
#endif /* WIN32 */
pe = getprotobynumber(id.proto_id);
if (pe)
- printf(" protoid=%s", pe->p_name);
+ ND_PRINT((ndo," protoid=%s", pe->p_name));
#ifndef WIN32
endprotoent();
#endif /* WIN32 */
} else {
/* it DOES NOT mean IPPROTO_IP! */
- printf(" protoid=%s", "0");
+ ND_PRINT((ndo," protoid=%s", "0"));
}
- printf(" port=%d", ntohs(id.port));
+ ND_PRINT((ndo," port=%d", ntohs(id.port)));
if (!len)
break;
if (data == NULL)
goto trunc;
- TCHECK2(*data, len);
+ ND_TCHECK2(*data, len);
switch (id.type) {
case IPSECDOI_ID_IPV4_ADDR:
if (len < 4)
- printf(" len=%d [bad: < 4]", len);
+ ND_PRINT((ndo," len=%d [bad: < 4]", len));
else
- printf(" len=%d %s", len, ipaddr_string(data));
+ ND_PRINT((ndo," len=%d %s", len, ipaddr_string(data)));
len = 0;
break;
case IPSECDOI_ID_FQDN:
case IPSECDOI_ID_USER_FQDN:
{
int i;
- printf(" len=%d ", len);
+ ND_PRINT((ndo," len=%d ", len));
for (i = 0; i < len; i++)
safeputchar(data[i]);
len = 0;
@@ -756,12 +955,12 @@
{
const u_char *mask;
if (len < 8)
- printf(" len=%d [bad: < 8]", len);
+ ND_PRINT((ndo," len=%d [bad: < 8]", len));
else {
mask = data + sizeof(struct in_addr);
- printf(" len=%d %s/%u.%u.%u.%u", len,
- ipaddr_string(data),
- mask[0], mask[1], mask[2], mask[3]);
+ ND_PRINT((ndo," len=%d %s/%u.%u.%u.%u", len,
+ ipaddr_string(data),
+ mask[0], mask[1], mask[2], mask[3]));
}
len = 0;
break;
@@ -769,22 +968,22 @@
#ifdef INET6
case IPSECDOI_ID_IPV6_ADDR:
if (len < 16)
- printf(" len=%d [bad: < 16]", len);
+ ND_PRINT((ndo," len=%d [bad: < 16]", len));
else
- printf(" len=%d %s", len, ip6addr_string(data));
+ ND_PRINT((ndo," len=%d %s", len, ip6addr_string(data)));
len = 0;
break;
case IPSECDOI_ID_IPV6_ADDR_SUBNET:
{
const u_int32_t *mask;
if (len < 20)
- printf(" len=%d [bad: < 20]", len);
+ ND_PRINT((ndo," len=%d [bad: < 20]", len));
else {
mask = (u_int32_t *)(data + sizeof(struct in6_addr));
/*XXX*/
- printf(" len=%d %s/0x%08x%08x%08x%08x", len,
- ip6addr_string(data),
- mask[0], mask[1], mask[2], mask[3]);
+ ND_PRINT((ndo," len=%d %s/0x%08x%08x%08x%08x", len,
+ ip6addr_string(data),
+ mask[0], mask[1], mask[2], mask[3]));
}
len = 0;
break;
@@ -792,22 +991,22 @@
#endif /*INET6*/
case IPSECDOI_ID_IPV4_ADDR_RANGE:
if (len < 8)
- printf(" len=%d [bad: < 8]", len);
+ ND_PRINT((ndo," len=%d [bad: < 8]", len));
else {
- printf(" len=%d %s-%s", len,
- ipaddr_string(data),
- ipaddr_string(data + sizeof(struct in_addr)));
+ ND_PRINT((ndo," len=%d %s-%s", len,
+ ipaddr_string(data),
+ ipaddr_string(data + sizeof(struct in_addr))));
}
len = 0;
break;
#ifdef INET6
case IPSECDOI_ID_IPV6_ADDR_RANGE:
if (len < 32)
- printf(" len=%d [bad: < 32]", len);
+ ND_PRINT((ndo," len=%d [bad: < 32]", len));
else {
- printf(" len=%d %s-%s", len,
- ip6addr_string(data),
- ip6addr_string(data + sizeof(struct in6_addr)));
+ ND_PRINT((ndo," len=%d %s-%s", len,
+ ip6addr_string(data),
+ ip6addr_string(data + sizeof(struct in6_addr))));
}
len = 0;
break;
@@ -821,159 +1020,169 @@
}
}
if (data && len) {
- printf(" len=%d", len);
- if (2 < vflag) {
- printf(" ");
- if (!rawprint((caddr_t)data, len))
+ ND_PRINT((ndo," len=%d", len));
+ if (2 < ndo->ndo_vflag) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)data, len))
goto trunc;
}
}
return (u_char *)ext + item_len;
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_ID));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_ID)));
return NULL;
}
static const u_char *
-isakmp_cert_print(const struct isakmp_gen *ext, u_int item_len _U_,
- const u_char *ep _U_, u_int32_t phase _U_,
- u_int32_t doi0 _U_,
- u_int32_t proto0 _U_, int depth _U_)
+ikev1_cert_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase _U_,
+ u_int32_t doi0 _U_,
+ u_int32_t proto0 _U_, int depth _U_)
{
- const struct isakmp_pl_cert *p;
- struct isakmp_pl_cert cert;
+ const struct ikev1_pl_cert *p;
+ struct ikev1_pl_cert cert;
static const char *certstr[] = {
"none", "pkcs7", "pgp", "dns",
"x509sign", "x509ke", "kerberos", "crl",
"arl", "spki", "x509attr",
};
- printf("%s:", NPSTR(ISAKMP_NPTYPE_CERT));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_CERT)));
- p = (struct isakmp_pl_cert *)ext;
- TCHECK(*p);
+ p = (struct ikev1_pl_cert *)ext;
+ ND_TCHECK(*p);
safememcpy(&cert, ext, sizeof(cert));
- printf(" len=%d", item_len - 4);
- printf(" type=%s", STR_OR_ID((cert.encode), certstr));
- if (2 < vflag && 4 < item_len) {
- printf(" ");
- if (!rawprint((caddr_t)(ext + 1), item_len - 4))
+ ND_PRINT((ndo," len=%d", item_len - 4));
+ ND_PRINT((ndo," type=%s", STR_OR_ID((cert.encode), certstr)));
+ if (2 < ndo->ndo_vflag && 4 < item_len) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), item_len - 4))
goto trunc;
}
return (u_char *)ext + item_len;
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_CERT));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_CERT)));
return NULL;
}
static const u_char *
-isakmp_cr_print(const struct isakmp_gen *ext, u_int item_len _U_,
- const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi0 _U_,
- u_int32_t proto0 _U_, int depth _U_)
+ikev1_cr_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi0 _U_,
+ u_int32_t proto0 _U_, int depth _U_)
{
- const struct isakmp_pl_cert *p;
- struct isakmp_pl_cert cert;
+ const struct ikev1_pl_cert *p;
+ struct ikev1_pl_cert cert;
static const char *certstr[] = {
"none", "pkcs7", "pgp", "dns",
"x509sign", "x509ke", "kerberos", "crl",
"arl", "spki", "x509attr",
};
- printf("%s:", NPSTR(ISAKMP_NPTYPE_CR));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_CR)));
- p = (struct isakmp_pl_cert *)ext;
- TCHECK(*p);
+ p = (struct ikev1_pl_cert *)ext;
+ ND_TCHECK(*p);
safememcpy(&cert, ext, sizeof(cert));
- printf(" len=%d", item_len - 4);
- printf(" type=%s", STR_OR_ID((cert.encode), certstr));
- if (2 < vflag && 4 < item_len) {
- printf(" ");
- if (!rawprint((caddr_t)(ext + 1), item_len - 4))
+ ND_PRINT((ndo," len=%d", item_len - 4));
+ ND_PRINT((ndo," type=%s", STR_OR_ID((cert.encode), certstr)));
+ if (2 < ndo->ndo_vflag && 4 < item_len) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), item_len - 4))
goto trunc;
}
return (u_char *)ext + item_len;
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_CR));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_CR)));
return NULL;
}
static const u_char *
-isakmp_hash_print(const struct isakmp_gen *ext, u_int item_len _U_,
- const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi _U_,
- u_int32_t proto _U_, int depth _U_)
+ikev1_hash_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
struct isakmp_gen e;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_HASH));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_HASH)));
- TCHECK(*ext);
+ ND_TCHECK(*ext);
safememcpy(&e, ext, sizeof(e));
- printf(" len=%d", ntohs(e.len) - 4);
- if (2 < vflag && 4 < ntohs(e.len)) {
- printf(" ");
- if (!rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4))
+ ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
goto trunc;
}
return (u_char *)ext + ntohs(e.len);
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_HASH));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_HASH)));
return NULL;
}
static const u_char *
-isakmp_sig_print(const struct isakmp_gen *ext, u_int item_len _U_,
- const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi _U_,
- u_int32_t proto _U_, int depth _U_)
+ikev1_sig_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
struct isakmp_gen e;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_SIG));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_SIG)));
- TCHECK(*ext);
+ ND_TCHECK(*ext);
safememcpy(&e, ext, sizeof(e));
- printf(" len=%d", ntohs(e.len) - 4);
- if (2 < vflag && 4 < ntohs(e.len)) {
- printf(" ");
- if (!rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4))
+ ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
goto trunc;
}
return (u_char *)ext + ntohs(e.len);
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_SIG));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_SIG)));
return NULL;
}
static const u_char *
-isakmp_nonce_print(const struct isakmp_gen *ext,
- u_int item_len _U_,
- const u_char *ep _U_,
- u_int32_t phase _U_, u_int32_t doi _U_,
- u_int32_t proto _U_, int depth _U_)
+ikev1_nonce_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_,
+ const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
struct isakmp_gen e;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_NONCE));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_NONCE)));
- TCHECK(*ext);
+ ND_TCHECK(*ext);
safememcpy(&e, ext, sizeof(e));
- printf(" n len=%d", ntohs(e.len) - 4);
- if (2 < vflag && 4 < ntohs(e.len)) {
- printf(" ");
- if (!rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4))
+ ND_PRINT((ndo," n len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
+ } else if (1 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!ike_show_somedata(ndo, (u_char *)(caddr_t)(ext + 1), ep))
goto trunc;
}
return (u_char *)ext + ntohs(e.len);
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_NONCE));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_NONCE)));
return NULL;
}
static const u_char *
-isakmp_n_print(const struct isakmp_gen *ext, u_int item_len,
- const u_char *ep, u_int32_t phase, u_int32_t doi0 _U_,
- u_int32_t proto0 _U_, int depth)
+ikev1_n_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len,
+ const u_char *ep, u_int32_t phase, u_int32_t doi0 _U_,
+ u_int32_t proto0 _U_, int depth)
{
- struct isakmp_pl_n *p, n;
+ struct ikev1_pl_n *p, n;
const u_char *cp;
u_char *ep2;
u_int32_t doi;
@@ -1024,47 +1233,47 @@
#define IPSEC_NOTIFY_STATUS_STR(x) \
STR_OR_ID((u_int)((x) - 24576), ipsec_notify_status_str)
- printf("%s:", NPSTR(ISAKMP_NPTYPE_N));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_N)));
- p = (struct isakmp_pl_n *)ext;
- TCHECK(*p);
+ p = (struct ikev1_pl_n *)ext;
+ ND_TCHECK(*p);
safememcpy(&n, ext, sizeof(n));
doi = ntohl(n.doi);
proto = n.prot_id;
if (doi != 1) {
- printf(" doi=%d", doi);
- printf(" proto=%d", proto);
+ ND_PRINT((ndo," doi=%d", doi));
+ ND_PRINT((ndo," proto=%d", proto));
if (ntohs(n.type) < 8192)
- printf(" type=%s", NOTIFY_ERROR_STR(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", NOTIFY_ERROR_STR(ntohs(n.type))));
else if (ntohs(n.type) < 16384)
- printf(" type=%s", numstr(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", numstr(ntohs(n.type))));
else if (ntohs(n.type) < 24576)
- printf(" type=%s", NOTIFY_STATUS_STR(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", NOTIFY_STATUS_STR(ntohs(n.type))));
else
- printf(" type=%s", numstr(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", numstr(ntohs(n.type))));
if (n.spi_size) {
- printf(" spi=");
- if (!rawprint((caddr_t)(p + 1), n.spi_size))
+ ND_PRINT((ndo," spi="));
+ if (!rawprint(ndo, (caddr_t)(p + 1), n.spi_size))
goto trunc;
}
return (u_char *)(p + 1) + n.spi_size;
}
- printf(" doi=ipsec");
- printf(" proto=%s", PROTOIDSTR(proto));
+ ND_PRINT((ndo," doi=ipsec"));
+ ND_PRINT((ndo," proto=%s", PROTOIDSTR(proto)));
if (ntohs(n.type) < 8192)
- printf(" type=%s", NOTIFY_ERROR_STR(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", NOTIFY_ERROR_STR(ntohs(n.type))));
else if (ntohs(n.type) < 16384)
- printf(" type=%s", IPSEC_NOTIFY_ERROR_STR(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", IPSEC_NOTIFY_ERROR_STR(ntohs(n.type))));
else if (ntohs(n.type) < 24576)
- printf(" type=%s", NOTIFY_STATUS_STR(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", NOTIFY_STATUS_STR(ntohs(n.type))));
else if (ntohs(n.type) < 32768)
- printf(" type=%s", IPSEC_NOTIFY_STATUS_STR(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", IPSEC_NOTIFY_STATUS_STR(ntohs(n.type))));
else
- printf(" type=%s", numstr(ntohs(n.type)));
+ ND_PRINT((ndo," type=%s", numstr(ntohs(n.type))));
if (n.spi_size) {
- printf(" spi=");
- if (!rawprint((caddr_t)(p + 1), n.spi_size))
+ ND_PRINT((ndo," spi="));
+ if (!rawprint(ndo, (caddr_t)(p + 1), n.spi_size))
goto trunc;
}
@@ -1072,322 +1281,1212 @@
ep2 = (u_char *)p + item_len;
if (cp < ep) {
- printf(" orig=(");
+ ND_PRINT((ndo," orig=("));
switch (ntohs(n.type)) {
case IPSECDOI_NTYPE_RESPONDER_LIFETIME:
{
const struct attrmap *map = oakley_t_map;
size_t nmap = sizeof(oakley_t_map)/sizeof(oakley_t_map[0]);
while (cp < ep && cp < ep2) {
- cp = isakmp_attrmap_print(cp,
+ cp = ikev1_attrmap_print(ndo, cp,
(ep < ep2) ? ep : ep2, map, nmap);
}
break;
}
case IPSECDOI_NTYPE_REPLAY_STATUS:
- printf("replay detection %sabled",
- (*(u_int32_t *)cp) ? "en" : "dis");
+ ND_PRINT((ndo,"replay detection %sabled",
+ (*(u_int32_t *)cp) ? "en" : "dis"));
break;
case ISAKMP_NTYPE_NO_PROPOSAL_CHOSEN:
- if (isakmp_sub_print(ISAKMP_NPTYPE_SA,
- (struct isakmp_gen *)cp, ep, phase, doi, proto,
- depth) == NULL)
+ if (ikev1_sub_print(ndo, ISAKMP_NPTYPE_SA,
+ (struct isakmp_gen *)cp, ep, phase, doi, proto,
+ depth) == NULL)
return NULL;
break;
default:
/* NULL is dummy */
- isakmp_print(gndo, cp,
+ isakmp_print(ndo, cp,
item_len - sizeof(*p) - n.spi_size,
NULL);
}
- printf(")");
+ ND_PRINT((ndo,")"));
}
return (u_char *)ext + item_len;
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_N));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_N)));
return NULL;
}
static const u_char *
-isakmp_d_print(const struct isakmp_gen *ext, u_int item_len _U_,
- const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi0 _U_,
- u_int32_t proto0 _U_, int depth _U_)
+ikev1_d_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep _U_, u_int32_t phase _U_, u_int32_t doi0 _U_,
+ u_int32_t proto0 _U_, int depth _U_)
{
- const struct isakmp_pl_d *p;
- struct isakmp_pl_d d;
+ const struct ikev1_pl_d *p;
+ struct ikev1_pl_d d;
const u_int8_t *q;
u_int32_t doi;
u_int32_t proto;
int i;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_D));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_D)));
- p = (struct isakmp_pl_d *)ext;
- TCHECK(*p);
+ p = (struct ikev1_pl_d *)ext;
+ ND_TCHECK(*p);
safememcpy(&d, ext, sizeof(d));
doi = ntohl(d.doi);
proto = d.prot_id;
if (doi != 1) {
- printf(" doi=%u", doi);
- printf(" proto=%u", proto);
+ ND_PRINT((ndo," doi=%u", doi));
+ ND_PRINT((ndo," proto=%u", proto));
} else {
- printf(" doi=ipsec");
- printf(" proto=%s", PROTOIDSTR(proto));
+ ND_PRINT((ndo," doi=ipsec"));
+ ND_PRINT((ndo," proto=%s", PROTOIDSTR(proto)));
}
- printf(" spilen=%u", d.spi_size);
- printf(" nspi=%u", ntohs(d.num_spi));
- printf(" spi=");
+ ND_PRINT((ndo," spilen=%u", d.spi_size));
+ ND_PRINT((ndo," nspi=%u", ntohs(d.num_spi)));
+ ND_PRINT((ndo," spi="));
q = (u_int8_t *)(p + 1);
for (i = 0; i < ntohs(d.num_spi); i++) {
if (i != 0)
- printf(",");
- if (!rawprint((caddr_t)q, d.spi_size))
+ ND_PRINT((ndo,","));
+ if (!rawprint(ndo, (caddr_t)q, d.spi_size))
goto trunc;
q += d.spi_size;
}
return q;
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_D));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_D)));
return NULL;
}
static const u_char *
-isakmp_vid_print(const struct isakmp_gen *ext,
- u_int item_len _U_, const u_char *ep _U_,
- u_int32_t phase _U_, u_int32_t doi _U_,
- u_int32_t proto _U_, int depth _U_)
+ikev1_vid_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
{
struct isakmp_gen e;
- printf("%s:", NPSTR(ISAKMP_NPTYPE_VID));
+ ND_PRINT((ndo,"%s:", NPSTR(ISAKMP_NPTYPE_VID)));
- TCHECK(*ext);
+ ND_TCHECK(*ext);
safememcpy(&e, ext, sizeof(e));
- printf(" len=%d", ntohs(e.len) - 4);
- if (2 < vflag && 4 < ntohs(e.len)) {
- printf(" ");
- if (!rawprint((caddr_t)(ext + 1), ntohs(e.len) - 4))
+ ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
goto trunc;
}
return (u_char *)ext + ntohs(e.len);
trunc:
- printf(" [|%s]", NPSTR(ISAKMP_NPTYPE_VID));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_VID)));
return NULL;
}
+/************************************************************/
+/* */
+/* IKE v2 - rfc4306 - dissector */
+/* */
+/************************************************************/
+
+static void
+ikev2_pay_print(netdissect_options *ndo, const char *payname, int critical)
+{
+ ND_PRINT((ndo,"%s%s:", payname, critical&0x80 ? "[C]" : ""));
+}
+
static const u_char *
-isakmp_sub0_print(u_char np, const struct isakmp_gen *ext, const u_char *ep,
- u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
+ikev2_gen_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext)
{
- const u_char *cp;
struct isakmp_gen e;
- u_int item_len;
- cp = (u_char *)ext;
- TCHECK(*ext);
+ ND_TCHECK(*ext);
safememcpy(&e, ext, sizeof(e));
+ ikev2_pay_print(ndo, NPSTR(tpay), e.critical);
- /*
- * Since we can't have a payload length of less than 4 bytes,
- * we need to bail out here if the generic header is nonsensical
- * or truncated, otherwise we could loop forever processing
- * zero-length items or otherwise misdissect the packet.
- */
- item_len = ntohs(e.len);
- if (item_len <= 4)
- return NULL;
-
- if (NPFUNC(np)) {
- /*
- * XXX - what if item_len is too short, or too long,
- * for this payload type?
- */
- cp = (*npfunc[np])(ext, item_len, ep, phase, doi, proto, depth);
- } else {
- printf("%s", NPSTR(np));
- cp += item_len;
+ ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
+ if (2 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
}
-
- return cp;
+ return (u_char *)ext + ntohs(e.len);
trunc:
- printf(" [|isakmp]");
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
return NULL;
}
static const u_char *
-isakmp_sub_print(u_char np, const struct isakmp_gen *ext, const u_char *ep,
- u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
-{
+ikev2_t_print(netdissect_options *ndo, u_char tpay _U_, int pcount,
+ const struct isakmp_gen *ext, u_int item_len,
+ const u_char *ep, u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ const struct ikev2_t *p;
+ struct ikev2_t t;
+ u_int16_t t_id;
const u_char *cp;
- int i;
- struct isakmp_gen e;
+ const char *idstr;
+ const struct attrmap *map;
+ size_t nmap;
+ const u_char *ep2;
- cp = (const u_char *)ext;
+ p = (struct ikev2_t *)ext;
+ ND_TCHECK(*p);
+ safememcpy(&t, ext, sizeof(t));
+ ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_T), t.h.critical);
- while (np) {
- TCHECK(*ext);
-
- safememcpy(&e, ext, sizeof(e));
+ t_id = ntohs(t.t_id);
+
+ map = NULL;
+ nmap = 0;
- TCHECK2(*ext, ntohs(e.len));
+ switch (t.t_type) {
+ case IV2_T_ENCR:
+ idstr = STR_OR_ID(t_id, esp_p_map);
+ map = encr_t_map;
+ nmap = sizeof(encr_t_map)/sizeof(encr_t_map[0]);
+ break;
- depth++;
- printf("\n");
- for (i = 0; i < depth; i++)
- printf(" ");
- printf("(");
- cp = isakmp_sub0_print(np, ext, ep, phase, doi, proto, depth);
- printf(")");
- depth--;
+ case IV2_T_PRF:
+ idstr = STR_OR_ID(t_id, prf_p_map);
+ break;
- if (cp == NULL) {
- /* Zero-length subitem */
- return NULL;
- }
+ case IV2_T_INTEG:
+ idstr = STR_OR_ID(t_id, integ_p_map);
+ break;
- np = e.np;
- ext = (struct isakmp_gen *)cp;
+ case IV2_T_DH:
+ idstr = STR_OR_ID(t_id, dh_p_map);
+ break;
+
+ case IV2_T_ESN:
+ idstr = STR_OR_ID(t_id, esn_p_map);
+ break;
+
+ default:
+ idstr = NULL;
+ break;
+ }
+
+ if (idstr)
+ ND_PRINT((ndo," #%u type=%s id=%s ", pcount,
+ STR_OR_ID(t.t_type, ikev2_t_type_map),
+ idstr));
+ else
+ ND_PRINT((ndo," #%u type=%s id=%u ", pcount,
+ STR_OR_ID(t.t_type, ikev2_t_type_map),
+ t.t_id));
+ cp = (u_char *)(p + 1);
+ ep2 = (u_char *)p + item_len;
+ while (cp < ep && cp < ep2) {
+ if (map && nmap) {
+ cp = ikev1_attrmap_print(ndo, cp, (ep < ep2) ? ep : ep2,
+ map, nmap);
+ } else
+ cp = ikev1_attr_print(ndo, cp, (ep < ep2) ? ep : ep2);
}
+ if (ep < ep2)
+ ND_PRINT((ndo,"..."));
return cp;
trunc:
- printf(" [|%s]", NPSTR(np));
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_T)));
return NULL;
}
-static char *
-numstr(int x)
+static const u_char *
+ikev2_p_print(netdissect_options *ndo, u_char tpay _U_, int pcount _U_,
+ const struct isakmp_gen *ext, u_int item_len _U_,
+ const u_char *ep, u_int32_t phase, u_int32_t doi0,
+ u_int32_t proto0 _U_, int depth)
{
- static char buf[20];
- snprintf(buf, sizeof(buf), "#%d", x);
- return buf;
-}
+ const struct ikev2_p *p;
+ struct ikev2_p prop;
+ const u_char *cp;
-/*
- * some compiler tries to optimize memcpy(), using the alignment constraint
- * on the argument pointer type. by using this function, we try to avoid the
- * optimization.
- */
-static void
-safememcpy(void *p, const void *q, size_t l)
-{
- memcpy(p, q, l);
-}
+ p = (struct ikev2_p *)ext;
+ ND_TCHECK(*p);
+ safememcpy(&prop, ext, sizeof(prop));
+ ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_P), prop.h.critical);
-void
-isakmp_print(netdissect_options *ndo,
- const u_char *bp, u_int length,
- const u_char *bp2)
-{
- const struct isakmp *p;
- struct isakmp base;
- const u_char *ep;
- u_char np;
- int i;
- int phase;
- int major, minor;
+ ND_PRINT((ndo," #%u protoid=%s transform=%d len=%u",
+ prop.p_no, PROTOIDSTR(prop.prot_id),
+ prop.num_t, ntohs(prop.h.len)));
+ if (prop.spi_size) {
+ ND_PRINT((ndo," spi="));
+ if (!rawprint(ndo, (caddr_t)(p + 1), prop.spi_size))
+ goto trunc;
+ }
- p = (const struct isakmp *)bp;
- ep = ndo->ndo_snapend;
+ ext = (struct isakmp_gen *)((u_char *)(p + 1) + prop.spi_size);
+ ND_TCHECK(*ext);
- if ((struct isakmp *)ep < p + 1) {
- printf("[|isakmp]");
- return;
- }
+ cp = ikev2_sub_print(ndo, NULL, ISAKMP_NPTYPE_T, ext, ep, phase, doi0,
+ prop.prot_id, depth);
+
+ return cp;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_P)));
+ return NULL;
+}
- safememcpy(&base, p, sizeof(base));
+static const u_char *
+ikev2_sa_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext1,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct isakmp_gen e;
+ int osa_len, sa_len;
- printf("isakmp");
- if (vflag) {
- major = (base.vers & ISAKMP_VERS_MAJOR)
- >> ISAKMP_VERS_MAJOR_SHIFT;
- minor = (base.vers & ISAKMP_VERS_MINOR)
- >> ISAKMP_VERS_MINOR_SHIFT;
- printf(" %d.%d", major, minor);
- }
+ ND_TCHECK(*ext1);
+ safememcpy(&e, ext1, sizeof(e));
+ ikev2_pay_print(ndo, "sa", e.critical);
- if (vflag) {
- printf(" msgid ");
- rawprint((caddr_t)&base.msgid, sizeof(base.msgid));
- }
+ osa_len= ntohs(e.len);
+ sa_len = osa_len - 4;
+ ND_PRINT((ndo," len=%d", sa_len));
- if (1 < vflag) {
- printf(" cookie ");
- rawprint((caddr_t)&base.i_ck, sizeof(base.i_ck));
- printf("->");
- rawprint((caddr_t)&base.r_ck, sizeof(base.r_ck));
- }
- printf(":");
+ ikev2_sub_print(ndo, NULL, ISAKMP_NPTYPE_P,
+ ext1+1, ep,
+ 0, 0, 0, depth);
- phase = (*(u_int32_t *)base.msgid == 0) ? 1 : 2;
- if (phase == 1)
- printf(" phase %d", phase);
- else
- printf(" phase %d/others", phase);
+ return (u_char *)ext1 + osa_len;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
- i = cookie_find(&base.i_ck);
- if (i < 0) {
- if (iszero((u_char *)&base.r_ck, sizeof(base.r_ck))) {
- /* the first packet */
- printf(" I");
- if (bp2)
- cookie_record(&base.i_ck, bp2);
- } else
- printf(" ?");
- } else {
- if (bp2 && cookie_isinitiator(i, bp2))
- printf(" I");
- else if (bp2 && cookie_isresponder(i, bp2))
- printf(" R");
- else
- printf(" ?");
- }
+static const u_char *
+ikev2_ke_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct ikev2_ke ke;
+ struct ikev2_ke *k;
- printf(" %s", ETYPESTR(base.etype));
- if (base.flags) {
- printf("[%s%s]", base.flags & ISAKMP_FLAG_E ? "E" : "",
- base.flags & ISAKMP_FLAG_C ? "C" : "");
+ k = (struct ikev2_ke *)ext;
+ ND_TCHECK(*ext);
+ safememcpy(&ke, ext, sizeof(ke));
+ ikev2_pay_print(ndo, NPSTR(tpay), ke.h.critical);
+
+ ND_PRINT((ndo," len=%u group=%s", ntohs(ke.h.len) - 8,
+ STR_OR_ID(ntohs(ke.ke_group), dh_p_map)));
+
+ if (2 < ndo->ndo_vflag && 8 < ntohs(ke.h.len)) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(k + 1), ntohs(ke.h.len) - 8))
+ goto trunc;
}
+ return (u_char *)ext + ntohs(ke.h.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
- if (vflag) {
- const struct isakmp_gen *ext;
- int nparen;
-
-#define CHECKLEN(p, np) \
- if (ep < (u_char *)(p)) { \
- printf(" [|%s]", NPSTR(np)); \
- goto done; \
- }
+static const u_char *
+ikev2_ID_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct ikev2_id id;
+ int id_len, idtype_len, i;
+ unsigned int dumpascii, dumphex;
+ unsigned char *typedata;
- printf(":");
+ ND_TCHECK(*ext);
+ safememcpy(&id, ext, sizeof(id));
+ ikev2_pay_print(ndo, NPSTR(tpay), id.h.critical);
- /* regardless of phase... */
- if (base.flags & ISAKMP_FLAG_E) {
- /*
- * encrypted, nothing we can do right now.
- * we hope to decrypt the packet in the future...
- */
- printf(" [encrypted %s]", NPSTR(base.np));
- goto done;
- }
+ id_len = ntohs(id.h.len);
- nparen = 0;
- CHECKLEN(p + 1, base.np)
+ ND_PRINT((ndo," len=%d", id_len - 4));
+ if (2 < ndo->ndo_vflag && 4 < id_len) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), id_len - 4))
+ goto trunc;
+ }
- np = base.np;
- ext = (struct isakmp_gen *)(p + 1);
- isakmp_sub_print(np, ext, ep, phase, 0, 0, 0);
+ idtype_len =id_len - sizeof(struct ikev2_id);
+ dumpascii = 0;
+ dumphex = 0;
+ typedata = (unsigned char *)(ext)+sizeof(struct ikev2_id);
+
+ switch(id.type) {
+ case ID_IPV4_ADDR:
+ ND_PRINT((ndo, " ipv4:"));
+ dumphex=1;
+ break;
+ case ID_FQDN:
+ ND_PRINT((ndo, " fqdn:"));
+ dumpascii=1;
+ break;
+ case ID_RFC822_ADDR:
+ ND_PRINT((ndo, " rfc822:"));
+ dumpascii=1;
+ break;
+ case ID_IPV6_ADDR:
+ ND_PRINT((ndo, " ipv6:"));
+ dumphex=1;
+ break;
+ case ID_DER_ASN1_DN:
+ ND_PRINT((ndo, " dn:"));
+ dumphex=1;
+ break;
+ case ID_DER_ASN1_GN:
+ ND_PRINT((ndo, " gn:"));
+ dumphex=1;
+ break;
+ case ID_KEY_ID:
+ ND_PRINT((ndo, " keyid:"));
+ dumphex=1;
+ break;
}
-done:
- if (vflag) {
- if (ntohl(base.len) != length) {
- printf(" (len mismatch: isakmp %u/ip %u)",
- (u_int32_t)ntohl(base.len), length);
+ if(dumpascii) {
+ ND_TCHECK2(*typedata, idtype_len);
+ for(i=0; i<idtype_len; i++) {
+ if(isprint(typedata[i])) {
+ ND_PRINT((ndo, "%c", typedata[i]));
+ } else {
+ ND_PRINT((ndo, "."));
+ }
}
}
+ if(dumphex) {
+ if (!rawprint(ndo, (caddr_t)typedata, idtype_len))
+ goto trunc;
+ }
+
+ return (u_char *)ext + id_len;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
}
-void
+static const u_char *
+ikev2_cert_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
+}
+
+static const u_char *
+ikev2_cr_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
+}
+
+static const u_char *
+ikev2_auth_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct ikev2_auth a;
+ const char *v2_auth[]={ "invalid", "rsasig",
+ "shared-secret", "dsssig" };
+ u_char *authdata = (u_char*)ext + sizeof(a);
+ unsigned int len;
+
+ ND_TCHECK(*ext);
+ safememcpy(&a, ext, sizeof(a));
+ ikev2_pay_print(ndo, NPSTR(tpay), a.h.critical);
+ len = ntohs(a.h.len);
+
+ ND_PRINT((ndo," len=%d method=%s", len-4,
+ STR_OR_ID(a.auth_method, v2_auth)));
+
+ if (1 < ndo->ndo_vflag && 4 < len) {
+ ND_PRINT((ndo," authdata=("));
+ if (!rawprint(ndo, (caddr_t)authdata, len - sizeof(a)))
+ goto trunc;
+ ND_PRINT((ndo,") "));
+ } else if(ndo->ndo_vflag && 4 < len) {
+ if(!ike_show_somedata(ndo, authdata, ep)) goto trunc;
+ }
+
+ return (u_char *)ext + len;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_nonce_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct isakmp_gen e;
+
+ ND_TCHECK(*ext);
+ safememcpy(&e, ext, sizeof(e));
+ ikev2_pay_print(ndo, "nonce", e.critical);
+
+ ND_PRINT((ndo," len=%d", ntohs(e.len) - 4));
+ if (1 < ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ ND_PRINT((ndo," nonce=("));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
+ ND_PRINT((ndo,") "));
+ } else if(ndo->ndo_vflag && 4 < ntohs(e.len)) {
+ if(!ike_show_somedata(ndo, (const u_char *)(ext+1), ep)) goto trunc;
+ }
+
+ return (u_char *)ext + ntohs(e.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+/* notify payloads */
+static const u_char *
+ikev2_n_print(netdissect_options *ndo, u_char tpay _U_,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct ikev2_n *p, n;
+ const u_char *cp;
+ u_char *ep2;
+ u_char showspi, showdata, showsomedata;
+ const char *notify_name;
+ u_int32_t type;
+
+ p = (struct ikev2_n *)ext;
+ ND_TCHECK(*p);
+ safememcpy(&n, ext, sizeof(n));
+ ikev2_pay_print(ndo, NPSTR(ISAKMP_NPTYPE_N), n.h.critical);
+
+ showspi = 1;
+ showdata = 0;
+ showsomedata=0;
+ notify_name=NULL;
+
+ ND_PRINT((ndo," prot_id=%s", PROTOIDSTR(n.prot_id)));
+
+ type = ntohs(n.type);
+
+ /* notify space is annoying sparse */
+ switch(type) {
+ case IV2_NOTIFY_UNSUPPORTED_CRITICAL_PAYLOAD:
+ notify_name = "unsupported_critical_payload";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_INVALID_IKE_SPI:
+ notify_name = "invalid_ike_spi";
+ showspi = 1;
+ break;
+
+ case IV2_NOTIFY_INVALID_MAJOR_VERSION:
+ notify_name = "invalid_major_version";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_INVALID_SYNTAX:
+ notify_name = "invalid_syntax";
+ showspi = 1;
+ break;
+
+ case IV2_NOTIFY_INVALID_MESSAGE_ID:
+ notify_name = "invalid_message_id";
+ showspi = 1;
+ break;
+
+ case IV2_NOTIFY_INVALID_SPI:
+ notify_name = "invalid_spi";
+ showspi = 1;
+ break;
+
+ case IV2_NOTIFY_NO_PROPOSAL_CHOSEN:
+ notify_name = "no_protocol_chosen";
+ showspi = 1;
+ break;
+
+ case IV2_NOTIFY_INVALID_KE_PAYLOAD:
+ notify_name = "invalid_ke_payload";
+ showspi = 1;
+ break;
+
+ case IV2_NOTIFY_AUTHENTICATION_FAILED:
+ notify_name = "authentication_failed";
+ showspi = 1;
+ break;
+
+ case IV2_NOTIFY_SINGLE_PAIR_REQUIRED:
+ notify_name = "single_pair_required";
+ showspi = 1;
+ break;
+
+ case IV2_NOTIFY_NO_ADDITIONAL_SAS:
+ notify_name = "no_additional_sas";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_INTERNAL_ADDRESS_FAILURE:
+ notify_name = "internal_address_failure";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_FAILED_CP_REQUIRED:
+ notify_name = "failed:cp_required";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_INVALID_SELECTORS:
+ notify_name = "invalid_selectors";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_INITIAL_CONTACT:
+ notify_name = "initial_contact";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_SET_WINDOW_SIZE:
+ notify_name = "set_window_size";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_ADDITIONAL_TS_POSSIBLE:
+ notify_name = "additional_ts_possible";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_IPCOMP_SUPPORTED:
+ notify_name = "ipcomp_supported";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_NAT_DETECTION_SOURCE_IP:
+ notify_name = "nat_detection_source_ip";
+ showspi = 1;
+ break;
+
+ case IV2_NOTIFY_NAT_DETECTION_DESTINATION_IP:
+ notify_name = "nat_detection_destination_ip";
+ showspi = 1;
+ break;
+
+ case IV2_NOTIFY_COOKIE:
+ notify_name = "cookie";
+ showspi = 1;
+ showsomedata= 1;
+ showdata= 0;
+ break;
+
+ case IV2_NOTIFY_USE_TRANSPORT_MODE:
+ notify_name = "use_transport_mode";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_HTTP_CERT_LOOKUP_SUPPORTED:
+ notify_name = "http_cert_lookup_supported";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_REKEY_SA:
+ notify_name = "rekey_sa";
+ showspi = 1;
+ break;
+
+ case IV2_NOTIFY_ESP_TFC_PADDING_NOT_SUPPORTED:
+ notify_name = "tfc_padding_not_supported";
+ showspi = 0;
+ break;
+
+ case IV2_NOTIFY_NON_FIRST_FRAGMENTS_ALSO:
+ notify_name = "non_first_fragment_also";
+ showspi = 0;
+ break;
+
+ default:
+ if (type < 8192) {
+ notify_name="error";
+ } else if(type < 16384) {
+ notify_name="private-error";
+ } else if(type < 40960) {
+ notify_name="status";
+ } else {
+ notify_name="private-status";
+ }
+ }
+
+ if(notify_name) {
+ ND_PRINT((ndo," type=%u(%s)", type, notify_name));
+ }
+
+
+ if (showspi && n.spi_size) {
+ ND_PRINT((ndo," spi="));
+ if (!rawprint(ndo, (caddr_t)(p + 1), n.spi_size))
+ goto trunc;
+ }
+
+ cp = (u_char *)(p + 1) + n.spi_size;
+ ep2 = (u_char *)p + item_len;
+
+ if(3 < ndo->ndo_vflag) {
+ showdata = 1;
+ }
+
+ if ((showdata || (showsomedata && ep-cp < 30)) && cp < ep) {
+ ND_PRINT((ndo," data=("));
+ if (!rawprint(ndo, (caddr_t)(cp), ep - cp))
+ goto trunc;
+
+ ND_PRINT((ndo,")"));
+
+ } else if(showsomedata && cp < ep) {
+ if(!ike_show_somedata(ndo, cp, ep)) goto trunc;
+ }
+
+ return (u_char *)ext + item_len;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(ISAKMP_NPTYPE_N)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_d_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
+}
+
+static const u_char *
+ikev2_vid_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ struct isakmp_gen e;
+ const u_char *vid;
+ int i, len;
+
+ ND_TCHECK(*ext);
+ safememcpy(&e, ext, sizeof(e));
+ ikev2_pay_print(ndo, NPSTR(tpay), e.critical);
+ ND_PRINT((ndo," len=%d vid=", ntohs(e.len) - 4));
+
+ vid = (const u_char *)(ext+1);
+ len = ntohs(e.len) - 4;
+ ND_TCHECK2(*vid, len);
+ for(i=0; i<len; i++) {
+ if(isprint(vid[i])) ND_PRINT((ndo, "%c", vid[i]));
+ else ND_PRINT((ndo, ".", vid[i]));
+ }
+ if (2 < ndo->ndo_vflag && 4 < len) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), ntohs(e.len) - 4))
+ goto trunc;
+ }
+ return (u_char *)ext + ntohs(e.len);
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_TS_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
+}
+
+static const u_char *
+ikev2_e_print(netdissect_options *ndo, struct isakmp *base,
+ u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase, u_int32_t doi,
+ u_int32_t proto, int depth)
+{
+ struct isakmp_gen e;
+ u_char *dat;
+ volatile int dlen;
+
+ ND_TCHECK(*ext);
+ safememcpy(&e, ext, sizeof(e));
+ ikev2_pay_print(ndo, NPSTR(tpay), e.critical);
+
+ dlen = ntohs(e.len)-4;
+
+ ND_PRINT((ndo," len=%d", dlen));
+ if (2 < ndo->ndo_vflag && 4 < dlen) {
+ ND_PRINT((ndo," "));
+ if (!rawprint(ndo, (caddr_t)(ext + 1), dlen))
+ goto trunc;
+ }
+
+ dat = (u_char *)(ext+1);
+ ND_TCHECK2(*dat, dlen);
+
+ /* try to decypt it! */
+ if(esp_print_decrypt_buffer_by_ikev2(ndo,
+ base->flags & ISAKMP_FLAG_I,
+ base->i_ck, base->r_ck,
+ dat, dat+dlen)) {
+
+ ext = (const struct isakmp_gen *)ndo->ndo_packetp;
+
+ /* got it decrypted, print stuff inside. */
+ ikev2_sub_print(ndo, base, e.np, ext, ndo->ndo_snapend,
+ phase, doi, proto, depth+1);
+ }
+
+
+ /* always return NULL, because E must be at end, and NP refers
+ * to what was inside.
+ */
+ return NULL;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(tpay)));
+ return NULL;
+}
+
+static const u_char *
+ikev2_cp_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
+}
+
+static const u_char *
+ikev2_eap_print(netdissect_options *ndo, u_char tpay,
+ const struct isakmp_gen *ext,
+ u_int item_len _U_, const u_char *ep _U_,
+ u_int32_t phase _U_, u_int32_t doi _U_,
+ u_int32_t proto _U_, int depth _U_)
+{
+ return ikev2_gen_print(ndo, tpay, ext);
+}
+
+static const u_char *
+ike_sub0_print(netdissect_options *ndo,
+ u_char np, const struct isakmp_gen *ext, const u_char *ep,
+
+ u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
+{
+ const u_char *cp;
+ struct isakmp_gen e;
+ u_int item_len;
+
+ cp = (u_char *)ext;
+ ND_TCHECK(*ext);
+ safememcpy(&e, ext, sizeof(e));
+
+ /*
+ * Since we can't have a payload length of less than 4 bytes,
+ * we need to bail out here if the generic header is nonsensical
+ * or truncated, otherwise we could loop forever processing
+ * zero-length items or otherwise misdissect the packet.
+ */
+ item_len = ntohs(e.len);
+ if (item_len <= 4)
+ return NULL;
+
+ if (NPFUNC(np)) {
+ /*
+ * XXX - what if item_len is too short, or too long,
+ * for this payload type?
+ */
+ cp = (*npfunc[np])(ndo, np, ext, item_len, ep, phase, doi, proto, depth);
+ } else {
+ ND_PRINT((ndo,"%s", NPSTR(np)));
+ cp += item_len;
+ }
+
+ return cp;
+trunc:
+ ND_PRINT((ndo," [|isakmp]"));
+ return NULL;
+}
+
+static const u_char *
+ikev1_sub_print(netdissect_options *ndo,
+ u_char np, const struct isakmp_gen *ext, const u_char *ep,
+ u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
+{
+ const u_char *cp;
+ int i;
+ struct isakmp_gen e;
+
+ cp = (const u_char *)ext;
+
+ while (np) {
+ ND_TCHECK(*ext);
+
+ safememcpy(&e, ext, sizeof(e));
+
+ ND_TCHECK2(*ext, ntohs(e.len));
+
+ depth++;
+ ND_PRINT((ndo,"\n"));
+ for (i = 0; i < depth; i++)
+ ND_PRINT((ndo," "));
+ ND_PRINT((ndo,"("));
+ cp = ike_sub0_print(ndo, np, ext, ep, phase, doi, proto, depth);
+ ND_PRINT((ndo,")"));
+ depth--;
+
+ if (cp == NULL) {
+ /* Zero-length subitem */
+ return NULL;
+ }
+
+ np = e.np;
+ ext = (struct isakmp_gen *)cp;
+ }
+ return cp;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(np)));
+ return NULL;
+}
+
+static char *
+numstr(int x)
+{
+ static char buf[20];
+ snprintf(buf, sizeof(buf), "#%d", x);
+ return buf;
+}
+
+/*
+ * some compiler tries to optimize memcpy(), using the alignment constraint
+ * on the argument pointer type. by using this function, we try to avoid the
+ * optimization.
+ */
+static void
+safememcpy(void *p, const void *q, size_t l)
+{
+ memcpy(p, q, l);
+}
+
+void
+ikev1_print(netdissect_options *ndo,
+ const u_char *bp, u_int length,
+ const u_char *bp2, struct isakmp *base)
+{
+ const struct isakmp *p;
+ const u_char *ep;
+ u_char np;
+ int i;
+ int phase;
+
+ p = (const struct isakmp *)bp;
+ ep = ndo->ndo_snapend;
+
+ phase = (*(u_int32_t *)base->msgid == 0) ? 1 : 2;
+ if (phase == 1)
+ ND_PRINT((ndo," phase %d", phase));
+ else
+ ND_PRINT((ndo," phase %d/others", phase));
+
+ i = cookie_find(&base->i_ck);
+ if (i < 0) {
+ if (iszero((u_char *)&base->r_ck, sizeof(base->r_ck))) {
+ /* the first packet */
+ ND_PRINT((ndo," I"));
+ if (bp2)
+ cookie_record(&base->i_ck, bp2);
+ } else
+ ND_PRINT((ndo," ?"));
+ } else {
+ if (bp2 && cookie_isinitiator(i, bp2))
+ ND_PRINT((ndo," I"));
+ else if (bp2 && cookie_isresponder(i, bp2))
+ ND_PRINT((ndo," R"));
+ else
+ ND_PRINT((ndo," ?"));
+ }
+
+ ND_PRINT((ndo," %s", ETYPESTR(base->etype)));
+ if (base->flags) {
+ ND_PRINT((ndo,"[%s%s]", base->flags & ISAKMP_FLAG_E ? "E" : "",
+ base->flags & ISAKMP_FLAG_C ? "C" : ""));
+ }
+
+ if (ndo->ndo_vflag) {
+ const struct isakmp_gen *ext;
+ int nparen;
+
+ ND_PRINT((ndo,":"));
+
+ /* regardless of phase... */
+ if (base->flags & ISAKMP_FLAG_E) {
+ /*
+ * encrypted, nothing we can do right now.
+ * we hope to decrypt the packet in the future...
+ */
+ ND_PRINT((ndo," [encrypted %s]", NPSTR(base->np)));
+ goto done;
+ }
+
+ nparen = 0;
+ CHECKLEN(p + 1, base->np);
+ np = base->np;
+ ext = (struct isakmp_gen *)(p + 1);
+ ikev1_sub_print(ndo, np, ext, ep, phase, 0, 0, 0);
+ }
+
+done:
+ if (ndo->ndo_vflag) {
+ if (ntohl(base->len) != length) {
+ ND_PRINT((ndo," (len mismatch: isakmp %u/ip %u)",
+ (u_int32_t)ntohl(base->len), length));
+ }
+ }
+}
+
+static const u_char *
+ikev2_sub0_print(netdissect_options *ndo, struct isakmp *base,
+ u_char np, int pcount,
+ const struct isakmp_gen *ext, const u_char *ep,
+ u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
+{
+ const u_char *cp;
+ struct isakmp_gen e;
+ u_int item_len;
+
+ cp = (u_char *)ext;
+ ND_TCHECK(*ext);
+ safememcpy(&e, ext, sizeof(e));
+
+ /*
+ * Since we can't have a payload length of less than 4 bytes,
+ * we need to bail out here if the generic header is nonsensical
+ * or truncated, otherwise we could loop forever processing
+ * zero-length items or otherwise misdissect the packet.
+ */
+ item_len = ntohs(e.len);
+ if (item_len <= 4)
+ return NULL;
+
+ if(np == ISAKMP_NPTYPE_P) {
+ cp = ikev2_p_print(ndo, np, pcount, ext, item_len,
+ ep, phase, doi, proto, depth);
+ } else if(np == ISAKMP_NPTYPE_T) {
+ cp = ikev2_t_print(ndo, np, pcount, ext, item_len,
+ ep, phase, doi, proto, depth);
+ } else if(np == ISAKMP_NPTYPE_v2E) {
+ cp = ikev2_e_print(ndo, base, np, ext, item_len,
+ ep, phase, doi, proto, depth);
+ } else if (NPFUNC(np)) {
+ /*
+ * XXX - what if item_len is too short, or too long,
+ * for this payload type?
+ */
+ cp = (*npfunc[np])(ndo, np, /*pcount,*/ ext, item_len,
+ ep, phase, doi, proto, depth);
+ } else {
+ ND_PRINT((ndo,"%s", NPSTR(np)));
+ cp += item_len;
+ }
+
+ return cp;
+trunc:
+ ND_PRINT((ndo," [|isakmp]"));
+ return NULL;
+}
+
+static const u_char *
+ikev2_sub_print(netdissect_options *ndo,
+ struct isakmp *base,
+ u_char np, const struct isakmp_gen *ext, const u_char *ep,
+ u_int32_t phase, u_int32_t doi, u_int32_t proto, int depth)
+{
+ const u_char *cp;
+ int i;
+ int pcount;
+ struct isakmp_gen e;
+
+ cp = (const u_char *)ext;
+ pcount = 0;
+ while (np) {
+ pcount++;
+ ND_TCHECK(*ext);
+
+ safememcpy(&e, ext, sizeof(e));
+
+ ND_TCHECK2(*ext, ntohs(e.len));
+
+ depth++;
+ ND_PRINT((ndo,"\n"));
+ for (i = 0; i < depth; i++)
+ ND_PRINT((ndo," "));
+ ND_PRINT((ndo,"("));
+ cp = ikev2_sub0_print(ndo, base, np, pcount,
+ ext, ep, phase, doi, proto, depth);
+ ND_PRINT((ndo,")"));
+ depth--;
+
+ if (cp == NULL) {
+ /* Zero-length subitem */
+ return NULL;
+ }
+
+ np = e.np;
+ ext = (struct isakmp_gen *)cp;
+ }
+ return cp;
+trunc:
+ ND_PRINT((ndo," [|%s]", NPSTR(np)));
+ return NULL;
+}
+
+static void
+ikev2_print(netdissect_options *ndo,
+ const u_char *bp, u_int length,
+ const u_char *bp2 _U_, struct isakmp *base)
+{
+ const struct isakmp *p;
+ const u_char *ep;
+ u_char np;
+ int phase;
+
+ p = (const struct isakmp *)bp;
+ ep = ndo->ndo_snapend;
+
+ phase = (*(u_int32_t *)base->msgid == 0) ? 1 : 2;
+ if (phase == 1)
+ ND_PRINT((ndo, " parent_sa"));
+ else
+ ND_PRINT((ndo, " child_sa "));
+
+ ND_PRINT((ndo, " %s", ETYPESTR(base->etype)));
+ if (base->flags) {
+ ND_PRINT((ndo, "[%s%s]",
+ base->flags & ISAKMP_FLAG_I ? "I" : "",
+ base->flags & ISAKMP_FLAG_V ? "V" : "",
+ base->flags & ISAKMP_FLAG_R ? "R" : ""));
+ }
+
+ if (ndo->ndo_vflag) {
+ const struct isakmp_gen *ext;
+ int nparen;
+
+ ND_PRINT((ndo, ":"));
+
+ /* regardless of phase... */
+ if (base->flags & ISAKMP_FLAG_E) {
+ /*
+ * encrypted, nothing we can do right now.
+ * we hope to decrypt the packet in the future...
+ */
+ ND_PRINT((ndo, " [encrypted %s]", NPSTR(base->np)));
+ goto done;
+ }
+
+ nparen = 0;
+ CHECKLEN(p + 1, base->np)
+
+ np = base->np;
+ ext = (struct isakmp_gen *)(p + 1);
+ ikev2_sub_print(ndo, base, np, ext, ep, phase, 0, 0, 0);
+ }
+
+done:
+ if (ndo->ndo_vflag) {
+ if (ntohl(base->len) != length) {
+ ND_PRINT((ndo, " (len mismatch: isakmp %u/ip %u)",
+ (u_int32_t)ntohl(base->len), length));
+ }
+ }
+}
+
+void
+isakmp_print(netdissect_options *ndo,
+ const u_char *bp, u_int length,
+ const u_char *bp2)
+{
+ const struct isakmp *p;
+ struct isakmp base;
+ const u_char *ep;
+ int major, minor;
+
+ /* initiailize SAs */
+ if (ndo->ndo_sa_list_head == NULL) {
+ if (ndo->ndo_espsecret)
+ esp_print_decodesecret(ndo);
+ }
+
+ p = (const struct isakmp *)bp;
+ ep = ndo->ndo_snapend;
+
+ if ((struct isakmp *)ep < p + 1) {
+ ND_PRINT((ndo,"[|isakmp]"));
+ return;
+ }
+
+ safememcpy(&base, p, sizeof(base));
+
+ ND_PRINT((ndo,"isakmp"));
+ major = (base.vers & ISAKMP_VERS_MAJOR)
+ >> ISAKMP_VERS_MAJOR_SHIFT;
+ minor = (base.vers & ISAKMP_VERS_MINOR)
+ >> ISAKMP_VERS_MINOR_SHIFT;
+
+ if (ndo->ndo_vflag) {
+ ND_PRINT((ndo," %d.%d", major, minor));
+ }
+
+ if (ndo->ndo_vflag) {
+ ND_PRINT((ndo," msgid "));
+ hexprint(ndo, (caddr_t)&base.msgid, sizeof(base.msgid));
+ }
+
+ if (1 < ndo->ndo_vflag) {
+ ND_PRINT((ndo," cookie "));
+ hexprint(ndo, (caddr_t)&base.i_ck, sizeof(base.i_ck));
+ ND_PRINT((ndo,"->"));
+ hexprint(ndo, (caddr_t)&base.r_ck, sizeof(base.r_ck));
+ }
+ ND_PRINT((ndo,":"));
+
+ switch(major) {
+ case IKEv1_MAJOR_VERSION:
+ ikev1_print(ndo, bp, length, bp2, &base);
+ break;
+
+ case IKEv2_MAJOR_VERSION:
+ ikev2_print(ndo, bp, length, bp2, &base);
+ break;
+ }
+}
+
+void
isakmp_rfc3948_print(netdissect_options *ndo,
const u_char *bp, u_int length,
const u_char *bp2)
@@ -1403,7 +2502,7 @@
if(length < 4) {
goto trunc;
}
-
+
/*
* see if this is an IKE packet
*/
@@ -1433,7 +2532,7 @@
}
trunc:
- printf("[|isakmp]");
+ ND_PRINT((ndo,"[|isakmp]"));
return;
}
Index: tcpdump/isakmp.h
===================================================================
RCS file: /tcpdump/master/tcpdump/isakmp.h,v
retrieving revision 1.10
retrieving revision 1.12
diff -u -r1.10 -r1.12
--- tcpdump/isakmp.h 11 Dec 2002 07:13:54 -0000 1.10
+++ tcpdump/isakmp.h 24 Nov 2007 18:13:33 -0000 1.12
@@ -26,7 +26,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
-/* YIPS @(#)$Id: isakmp.h,v 1.10 2002/12/11 07:13:54 guy Exp $ */
+/* YIPS @(#)$Id: isakmp.h,v 1.12 2007/11/24 18:13:33 mcr Exp $ */
/* refer to RFC 2408 */
@@ -81,7 +81,7 @@
#define ISAKMP_TIMER_DEFAULT 10 /* seconds */
#define ISAKMP_TRY_DEFAULT 3 /* times */
-/* 3.1 ISAKMP Header Format
+/* 3.1 ISAKMP Header Format (IKEv1 and IKEv2)
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
! Initiator !
@@ -127,9 +127,13 @@
#define ISAKMP_NPTYPE_N 11 /* Notification */
#define ISAKMP_NPTYPE_D 12 /* Delete */
#define ISAKMP_NPTYPE_VID 13 /* Vendor ID */
+#define ISAKMP_NPTYPE_v2E 46 /* v2 Encrypted payload */
-#define ISAKMP_MAJOR_VERSION 1
-#define ISAKMP_MINOR_VERSION 0
+#define IKEv1_MAJOR_VERSION 1
+#define IKEv1_MINOR_VERSION 0
+
+#define IKEv2_MAJOR_VERSION 2
+#define IKEv2_MINOR_VERSION 0
/* Exchange Type */
#define ISAKMP_ETYPE_NONE 0 /* NONE */
@@ -142,6 +146,13 @@
/* Flags */
#define ISAKMP_FLAG_E 0x01 /* Encryption Bit */
#define ISAKMP_FLAG_C 0x02 /* Commit Bit */
+#define ISAKMP_FLAG_extra 0x04
+
+/* IKEv2 */
+#define ISAKMP_FLAG_I (1 << 3) /* (I)nitiator */
+#define ISAKMP_FLAG_V (1 << 4) /* (V)ersion */
+#define ISAKMP_FLAG_R (1 << 5) /* (R)esponse */
+
/* 3.2 Payload Generic Header
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
@@ -151,7 +162,7 @@
*/
struct isakmp_gen {
u_int8_t np; /* Next Payload */
- u_int8_t reserved; /* RESERVED, unused, must set to 0 */
+ u_int8_t critical; /* bit 7 - critical, rest is RESERVED */
u_int16_t len; /* Payload Length */
};
@@ -188,7 +199,7 @@
message of a Base Exchange (see Section 4.4) and the value "0" in the
first message of an Identity Protect Exchange (see Section 4.5).
*/
-struct isakmp_pl_sa {
+struct ikev1_pl_sa {
struct isakmp_gen h;
u_int32_t doi; /* Domain of Interpretation */
u_int32_t sit; /* Situation */
@@ -202,7 +213,7 @@
last within the security association proposal, then this field will
be 0.
*/
-struct isakmp_pl_p {
+struct ikev1_pl_p {
struct isakmp_gen h;
u_int8_t p_no; /* Proposal # */
u_int8_t prot_id; /* Protocol */
@@ -218,7 +229,7 @@
then this field will be 3. If the current Transform payload is the
last within the proposal, then this field will be 0.
*/
-struct isakmp_pl_t {
+struct ikev1_pl_t {
struct isakmp_gen h;
u_int8_t t_no; /* Transform # */
u_int8_t t_id; /* Transform-Id */
@@ -227,14 +238,14 @@
};
/* 3.7 Key Exchange Payload */
-struct isakmp_pl_ke {
+struct ikev1_pl_ke {
struct isakmp_gen h;
/* Key Exchange Data */
};
/* 3.8 Identification Payload */
/* MUST NOT to be used, because of being defined in ipsec-doi. */
-struct isakmp_pl_id {
+struct ikev1_pl_id {
struct isakmp_gen h;
union {
u_int8_t id_type; /* ID Type */
@@ -244,7 +255,7 @@
};
/* 3.9 Certificate Payload */
-struct isakmp_pl_cert {
+struct ikev1_pl_cert {
struct isakmp_gen h;
u_int8_t encode; /* Cert Encoding */
char cert; /* Certificate Data */
@@ -268,7 +279,7 @@
#define ISAKMP_CERT_SPKI 9
/* 3.10 Certificate Request Payload */
-struct isakmp_pl_cr {
+struct ikev1_pl_cr {
struct isakmp_gen h;
u_int8_t num_cert; /* # Cert. Types */
/*
@@ -283,27 +294,27 @@
/* 3.11 Hash Payload */
/* may not be used, because of having only data. */
-struct isakmp_pl_hash {
+struct ikev1_pl_hash {
struct isakmp_gen h;
/* Hash Data */
};
/* 3.12 Signature Payload */
/* may not be used, because of having only data. */
-struct isakmp_pl_sig {
+struct ikev1_pl_sig {
struct isakmp_gen h;
/* Signature Data */
};
/* 3.13 Nonce Payload */
/* may not be used, because of having only data. */
-struct isakmp_pl_nonce {
+struct ikev1_pl_nonce {
struct isakmp_gen h;
/* Nonce Data */
};
/* 3.14 Notification Payload */
-struct isakmp_pl_n {
+struct ikev1_pl_n {
struct isakmp_gen h;
u_int32_t doi; /* Domain of Interpretation */
u_int8_t prot_id; /* Protocol-ID */
@@ -347,7 +358,7 @@
#define ISAKMP_LOG_RETRY_LIMIT_REACHED 65530
/* 3.15 Delete Payload */
-struct isakmp_pl_d {
+struct ikev1_pl_d {
struct isakmp_gen h;
u_int32_t doi; /* Domain of Interpretation */
u_int8_t prot_id; /* Protocol-Id */
@@ -357,15 +368,15 @@
};
-struct isakmp_ph1tab {
- struct isakmp_ph1 *head;
- struct isakmp_ph1 *tail;
+struct ikev1_ph1tab {
+ struct ikev1_ph1 *head;
+ struct ikev1_ph1 *tail;
int len;
};
struct isakmp_ph2tab {
- struct isakmp_ph2 *head;
- struct isakmp_ph2 *tail;
+ struct ikev1_ph2 *head;
+ struct ikev1_ph2 *tail;
int len;
};
@@ -375,4 +386,116 @@
#define PFS_NEED 1
#define PFS_NONEED 0
+/* IKEv2 (RFC4306) */
+
+/* 3.3 Security Association Payload -- generic header */
+/* 3.3.1. Proposal Substructure */
+struct ikev2_p {
+ struct isakmp_gen h;
+ u_int8_t p_no; /* Proposal # */
+ u_int8_t prot_id; /* Protocol */
+ u_int8_t spi_size; /* SPI Size */
+ u_int8_t num_t; /* Number of Transforms */
+};
+
+/* 3.3.2. Transform Substructure */
+struct ikev2_t {
+ struct isakmp_gen h;
+ u_int8_t t_type; /* Transform Type (ENCR,PRF,INTEG,etc.*/
+ u_int8_t res2; /* reserved byte */
+ u_int16_t t_id; /* Transform ID */
+};
+
+enum ikev2_t_type {
+ IV2_T_ENCR = 1,
+ IV2_T_PRF = 2,
+ IV2_T_INTEG= 3,
+ IV2_T_DH = 4,
+ IV2_T_ESN = 5,
+};
+
+/* 3.4. Key Exchange Payload */
+struct ikev2_ke {
+ struct isakmp_gen h;
+ u_int16_t ke_group;
+ u_int16_t ke_res1;
+ /* KE data */
+};
+
+
+/* 3.5. Identification Payloads */
+enum ikev2_id_type {
+ ID_IPV4_ADDR=1,
+ ID_FQDN=2,
+ ID_RFC822_ADDR=3,
+ ID_IPV6_ADDR=5,
+ ID_DER_ASN1_DN=9,
+ ID_DER_ASN1_GN=10,
+ ID_KEY_ID=11,
+};
+struct ikev2_id {
+ struct isakmp_gen h;
+ u_int8_t type; /* ID type */
+ u_int8_t res1;
+ u_int16_t res2;
+ /* SPI */
+ /* Notification Data */
+};
+
+/* 3.10 Notification Payload */
+struct ikev2_n {
+ struct isakmp_gen h;
+ u_int8_t prot_id; /* Protocol-ID */
+ u_int8_t spi_size; /* SPI Size */
+ u_int16_t type; /* Notify Message Type */
+};
+
+enum ikev2_n_type {
+ IV2_NOTIFY_UNSUPPORTED_CRITICAL_PAYLOAD = 1,
+ IV2_NOTIFY_INVALID_IKE_SPI = 4,
+ IV2_NOTIFY_INVALID_MAJOR_VERSION = 5,
+ IV2_NOTIFY_INVALID_SYNTAX = 7,
+ IV2_NOTIFY_INVALID_MESSAGE_ID = 9,
+ IV2_NOTIFY_INVALID_SPI =11,
+ IV2_NOTIFY_NO_PROPOSAL_CHOSEN =14,
+ IV2_NOTIFY_INVALID_KE_PAYLOAD =17,
+ IV2_NOTIFY_AUTHENTICATION_FAILED =24,
+ IV2_NOTIFY_SINGLE_PAIR_REQUIRED =34,
+ IV2_NOTIFY_NO_ADDITIONAL_SAS =35,
+ IV2_NOTIFY_INTERNAL_ADDRESS_FAILURE =36,
+ IV2_NOTIFY_FAILED_CP_REQUIRED =37,
+ IV2_NOTIFY_INVALID_SELECTORS =39,
+ IV2_NOTIFY_INITIAL_CONTACT =16384,
+ IV2_NOTIFY_SET_WINDOW_SIZE =16385,
+ IV2_NOTIFY_ADDITIONAL_TS_POSSIBLE =16386,
+ IV2_NOTIFY_IPCOMP_SUPPORTED =16387,
+ IV2_NOTIFY_NAT_DETECTION_SOURCE_IP =16388,
+ IV2_NOTIFY_NAT_DETECTION_DESTINATION_IP =16389,
+ IV2_NOTIFY_COOKIE =16390,
+ IV2_NOTIFY_USE_TRANSPORT_MODE =16391,
+ IV2_NOTIFY_HTTP_CERT_LOOKUP_SUPPORTED =16392,
+ IV2_NOTIFY_REKEY_SA =16393,
+ IV2_NOTIFY_ESP_TFC_PADDING_NOT_SUPPORTED =16394,
+ IV2_NOTIFY_NON_FIRST_FRAGMENTS_ALSO =16395
+};
+
+struct notify_messages {
+ u_int16_t type;
+ char *msg;
+};
+
+/* 3.8 Notification Payload */
+struct ikev2_auth {
+ struct isakmp_gen h;
+ u_int8_t auth_method; /* Protocol-ID */
+ u_int8_t reserved[3];
+ /* authentication data */
+};
+
+enum ikev2_auth_type {
+ IV2_RSA_SIG = 1,
+ IV2_SHARED = 2,
+ IV2_DSS_SIG = 3,
+};
+
#endif /* !defined(_ISAKMP_H_) */
Index: tcpdump/netdissect.h
===================================================================
RCS file: /tcpdump/master/tcpdump/netdissect.h,v
retrieving revision 1.23
retrieving revision 1.24
diff -u -r1.23 -r1.24
--- tcpdump/netdissect.h 29 Jan 2007 09:59:42 -0000 1.23
+++ tcpdump/netdissect.h 24 Nov 2007 18:13:33 -0000 1.24
@@ -438,4 +438,11 @@
#endif
+extern void esp_print_decodesecret(netdissect_options *ndo);
+extern int esp_print_decrypt_buffer_by_ikev2(netdissect_options *ndo,
+ int initiator,
+ u_char spii[8], u_char spir[8],
+ u_char *buf, u_char *end);
+
+
#endif /* netdissect_h */
Index: tcpdump/print-esp.c
===================================================================
RCS file: /tcpdump/master/tcpdump/print-esp.c,v
retrieving revision 1.56
retrieving revision 1.57
diff -u -r1.56 -r1.57
--- tcpdump/print-esp.c 21 Apr 2005 06:44:40 -0000 1.56
+++ tcpdump/print-esp.c 24 Nov 2007 18:13:33 -0000 1.57
@@ -71,14 +71,71 @@
struct sa_list {
struct sa_list *next;
struct sockaddr_storage daddr;
- u_int32_t spi;
+ u_int32_t spi; /* if == 0, then IKEv2 */
+ int initiator;
+ u_char spii[8]; /* for IKEv2 */
+ u_char spir[8];
const EVP_CIPHER *evp;
int ivlen;
int authlen;
+ u_char authsecret[256];
+ int authsecret_len;
u_char secret[256]; /* is that big enough for all secrets? */
int secretlen;
};
+/*
+ * this will adjust ndo_packetp and ndo_snapend to new buffer!
+ */
+int esp_print_decrypt_buffer_by_ikev2(netdissect_options *ndo,
+ int initiator,
+ u_char spii[8], u_char spir[8],
+ u_char *buf, u_char *end)
+{
+ struct sa_list *sa;
+ u_char *iv;
+ int len;
+ EVP_CIPHER_CTX ctx;
+
+ /* initiator arg is any non-zero value */
+ if(initiator) initiator=1;
+
+ /* see if we can find the SA, and if so, decode it */
+ for (sa = ndo->ndo_sa_list_head; sa != NULL; sa = sa->next) {
+ if (sa->spi == 0
+ && initiator == sa->initiator
+ && memcmp(spii, sa->spii, 8) == 0
+ && memcmp(spir, sa->spir, 8) == 0)
+ break;
+ }
+
+ if(sa == NULL) return 0;
+ if(sa->evp == NULL) return 0;
+
+ /*
+ * remove authenticator, and see if we still have something to
+ * work with
+ */
+ end = end - sa->authlen;
+ iv = buf;
+ buf = buf + sa->ivlen;
+ len = end-buf;
+
+ if(end <= buf) return 0;
+
+ memset(&ctx, 0, sizeof(ctx));
+ if (EVP_CipherInit(&ctx, sa->evp, sa->secret, NULL, 0) < 0)
+ (*ndo->ndo_warning)(ndo, "espkey init failed");
+ EVP_CipherInit(&ctx, NULL, NULL, iv, 0);
+ EVP_Cipher(&ctx, buf, buf, len);
+
+ ndo->ndo_packetp = buf;
+ ndo->ndo_snapend = end;
+
+ return 1;
+
+}
+
static void esp_print_addsa(netdissect_options *ndo,
struct sa_list *sa, int sa_def)
{
@@ -123,13 +180,193 @@
}
/*
+ * returns size of binary, 0 on failure.
+ */
+static
+int espprint_decode_hex(netdissect_options *ndo,
+ u_char *binbuf, unsigned int binbuf_len,
+ char *hex)
+{
+ unsigned int len;
+ int i;
+
+ len = strlen(hex) / 2;
+
+ if (len > binbuf_len) {
+ (*ndo->ndo_warning)(ndo, "secret is too big: %d\n", len);
+ return 0;
+ }
+
+ i = 0;
+ while (hex[0] != '\0' && hex[1]!='\0') {
+ binbuf[i] = hex2byte(ndo, hex);
+ hex += 2;
+ i++;
+ }
+
+ return i;
+}
+
+/*
* decode the form: SPINUM@IP <tab> ALGONAME:0xsecret
+ */
+
+static int
+espprint_decode_encalgo(netdissect_options *ndo,
+ char *decode, struct sa_list *sa)
+{
+ int len;
+ size_t i;
+ const EVP_CIPHER *evp;
+ int authlen = 0;
+ char *colon, *p;
+
+ colon = strchr(decode, ':');
+ if (colon == NULL) {
+ (*ndo->ndo_warning)(ndo, "failed to decode espsecret: %s\n", decode);
+ return 0;
+ }
+ *colon = '\0';
+
+ len = colon - decode;
+ if (strlen(decode) > strlen("-hmac96") &&
+ !strcmp(decode + strlen(decode) - strlen("-hmac96"),
+ "-hmac96")) {
+ p = strstr(decode, "-hmac96");
+ *p = '\0';
+ authlen = 12;
+ }
+ if (strlen(decode) > strlen("-cbc") &&
+ !strcmp(decode + strlen(decode) - strlen("-cbc"), "-cbc")) {
+ p = strstr(decode, "-cbc");
+ *p = '\0';
+ }
+ evp = EVP_get_cipherbyname(decode);
+
+ if (!evp) {
+ (*ndo->ndo_warning)(ndo, "failed to find cipher algo %s\n", decode);
+ sa->evp = NULL;
+ sa->authlen = 0;
+ sa->ivlen = 0;
+ return 0;
+ }
+
+ sa->evp = evp;
+ sa->authlen = authlen;
+ sa->ivlen = EVP_CIPHER_iv_length(evp);
+
+ colon++;
+ if (colon[0] == '0' && colon[1] == 'x') {
+ /* decode some hex! */
+
+ colon += 2;
+ sa->secretlen = espprint_decode_hex(ndo, sa->secret, sizeof(sa->secret), colon);
+ if(sa->secretlen == 0) return 0;
+ } else {
+ i = strlen(colon);
+
+ if (i < sizeof(sa->secret)) {
+ memcpy(sa->secret, colon, i);
+ sa->secretlen = i;
+ } else {
+ memcpy(sa->secret, colon, sizeof(sa->secret));
+ sa->secretlen = sizeof(sa->secret);
+ }
+ }
+
+ return 1;
+}
+
+/*
+ * for the moment, ignore the auth algorith, just hard code the authenticator
+ * length. Need to research how openssl looks up HMAC stuff.
+ */
+static int
+espprint_decode_authalgo(netdissect_options *ndo,
+ char *decode, struct sa_list *sa)
+{
+ char *colon;
+
+ colon = strchr(decode, ':');
+ if (colon == NULL) {
+ (*ndo->ndo_warning)(ndo, "failed to decode espsecret: %s\n", decode);
+ return 0;
+ }
+ *colon = '\0';
+
+ if(strcasecmp(colon,"sha1") == 0 ||
+ strcasecmp(colon,"md5") == 0) {
+ sa->authlen = 12;
+ }
+ return 1;
+}
+
+static void esp_print_decode_ikeline(netdissect_options *ndo, char *line,
+ const char *file, int lineno)
+{
+ /* it's an IKEv2 secret, store it instead */
+ struct sa_list sa1;
+
+ char *init;
+ char *icookie, *rcookie;
+ int ilen, rlen;
+ char *authkey;
+ char *enckey;
+
+ init = strsep(&line, " \t");
+ icookie = strsep(&line, " \t");
+ rcookie = strsep(&line, " \t");
+ authkey = strsep(&line, " \t");
+ enckey = strsep(&line, " \t");
+
+ /* if any fields are missing */
+ if(!init || !icookie || !rcookie || !authkey || !enckey) {
+ (*ndo->ndo_warning)(ndo, "print_esp: failed to find all fields for ikev2 at %s:%u",
+ file, lineno);
+
+ return;
+ }
+
+ ilen = strlen(icookie);
+ rlen = strlen(rcookie);
+
+ if((init[0]!='I' && init[0]!='R')
+ || icookie[0]!='0' || icookie[1]!='x'
+ || rcookie[0]!='0' || rcookie[1]!='x'
+ || ilen!=18
+ || rlen!=18) {
+ (*ndo->ndo_warning)(ndo, "print_esp: line %s:%u improperly formatted.",
+ file, lineno);
+
+ (*ndo->ndo_warning)(ndo, "init=%s icookie=%s(%u) rcookie=%s(%u)",
+ init, icookie, ilen, rcookie, rlen);
+
+ return;
+ }
+
+ sa1.spi = 0;
+ sa1.initiator = (init[0] == 'I');
+ if(espprint_decode_hex(ndo, sa1.spii, sizeof(sa1.spii), icookie+2)!=8)
+ return;
+
+ if(espprint_decode_hex(ndo, sa1.spir, sizeof(sa1.spir), rcookie+2)!=8)
+ return;
+
+ if(!espprint_decode_encalgo(ndo, enckey, &sa1)) return;
+
+ if(!espprint_decode_authalgo(ndo, authkey, &sa1)) return;
+
+ esp_print_addsa(ndo, &sa1, FALSE);
+}
+
+/*
*
* special form: file /name
* causes us to go read from this file instead.
*
*/
-static void esp_print_decode_onesecret(netdissect_options *ndo, char *line)
+static void esp_print_decode_onesecret(netdissect_options *ndo, char *line,
+ const char *file, int lineno)
{
struct sa_list sa1;
int sa_def;
@@ -155,15 +392,18 @@
/* open file and read it */
FILE *secretfile;
char fileline[1024];
+ int lineno=0;
char *nl;
+ char *filename = line;
- secretfile = fopen(line, FOPEN_READ_TXT);
+ secretfile = fopen(filename, FOPEN_READ_TXT);
if (secretfile == NULL) {
- perror(line);
+ perror(filename);
exit(3);
}
while (fgets(fileline, sizeof(fileline)-1, secretfile) != NULL) {
+ lineno++;
/* remove newline from the line */
nl = strchr(fileline, '\n');
if (nl)
@@ -171,31 +411,37 @@
if (fileline[0] == '#') continue;
if (fileline[0] == '\0') continue;
- esp_print_decode_onesecret(ndo, fileline);
+ esp_print_decode_onesecret(ndo, fileline, filename, lineno);
}
fclose(secretfile);
return;
}
+ if (spikey && strcasecmp(spikey, "ikev2") == 0) {
+ esp_print_decode_ikeline(ndo, line, file, lineno);
+ return;
+ }
+
if (spikey) {
+
char *spistr, *foo;
u_int32_t spino;
struct sockaddr_in *sin;
#ifdef INET6
struct sockaddr_in6 *sin6;
#endif
-
+
spistr = strsep(&spikey, "@");
-
+
spino = strtoul(spistr, &foo, 0);
if (spistr == foo || !spikey) {
(*ndo->ndo_warning)(ndo, "print_esp: failed to decode spi# %s\n", foo);
return;
}
-
+
sa1.spi = spino;
-
+
sin = (struct sockaddr_in *)&sa1.daddr;
#ifdef INET6
sin6 = (struct sockaddr_in6 *)&sa1.daddr;
@@ -206,122 +452,63 @@
sin6->sin6_family = AF_INET6;
} else
#endif
- if (inet_pton(AF_INET, spikey, &sin->sin_addr) == 1) {
+ if (inet_pton(AF_INET, spikey, &sin->sin_addr) == 1) {
#ifdef HAVE_SOCKADDR_SA_LEN
- sin->sin_len = sizeof(struct sockaddr_in);
+ sin->sin_len = sizeof(struct sockaddr_in);
#endif
- sin->sin_family = AF_INET;
- } else {
- (*ndo->ndo_warning)(ndo, "print_esp: can not decode IP# %s\n", spikey);
- return;
- }
+ sin->sin_family = AF_INET;
+ } else {
+ (*ndo->ndo_warning)(ndo, "print_esp: can not decode IP# %s\n", spikey);
+ return;
+ }
}
if (decode) {
- char *colon, *p;
- u_char espsecret_key[256];
- int len;
- size_t i;
- const EVP_CIPHER *evp;
- int authlen = 0;
-
/* skip any blank spaces */
while (isspace((unsigned char)*decode))
decode++;
-
- colon = strchr(decode, ':');
- if (colon == NULL) {
- (*ndo->ndo_warning)(ndo, "failed to decode espsecret: %s\n", decode);
+
+ if(!espprint_decode_encalgo(ndo, decode, &sa1)) {
return;
}
- *colon = '\0';
-
- len = colon - decode;
- if (strlen(decode) > strlen("-hmac96") &&
- !strcmp(decode + strlen(decode) - strlen("-hmac96"),
- "-hmac96")) {
- p = strstr(decode, "-hmac96");
- *p = '\0';
- authlen = 12;
- }
- if (strlen(decode) > strlen("-cbc") &&
- !strcmp(decode + strlen(decode) - strlen("-cbc"), "-cbc")) {
- p = strstr(decode, "-cbc");
- *p = '\0';
- }
- evp = EVP_get_cipherbyname(decode);
- if (!evp) {
- (*ndo->ndo_warning)(ndo, "failed to find cipher algo %s\n", decode);
- sa1.evp = NULL;
- sa1.authlen = 0;
- sa1.ivlen = 0;
- return;
- }
-
- sa1.evp = evp;
- sa1.authlen = authlen;
- sa1.ivlen = EVP_CIPHER_iv_length(evp);
-
- colon++;
- if (colon[0] == '0' && colon[1] == 'x') {
- /* decode some hex! */
- colon += 2;
- len = strlen(colon) / 2;
-
- if (len > 256) {
- (*ndo->ndo_warning)(ndo, "secret is too big: %d\n", len);
- return;
- }
-
- i = 0;
- while (colon[0] != '\0' && colon[1]!='\0') {
- espsecret_key[i] = hex2byte(ndo, colon);
- colon += 2;
- i++;
- }
-
- memcpy(sa1.secret, espsecret_key, i);
- sa1.secretlen = i;
- } else {
- i = strlen(colon);
-
- if (i < sizeof(sa1.secret)) {
- memcpy(sa1.secret, colon, i);
- sa1.secretlen = i;
- } else {
- memcpy(sa1.secret, colon, sizeof(sa1.secret));
- sa1.secretlen = sizeof(sa1.secret);
- }
- }
}
esp_print_addsa(ndo, &sa1, sa_def);
}
-static void esp_print_decodesecret(netdissect_options *ndo)
+static void esp_init(netdissect_options *ndo _U_)
+{
+
+ OpenSSL_add_all_algorithms();
+ EVP_add_cipher_alias(SN_des_ede3_cbc, "3des");
+}
+
+void esp_print_decodesecret(netdissect_options *ndo)
{
char *line;
char *p;
+ static int initialized = 0;
+
+ if (!initialized) {
+ esp_init(ndo);
+ initialized = 1;
+ }
p = ndo->ndo_espsecret;
- while (ndo->ndo_espsecret && ndo->ndo_espsecret[0] != '\0') {
+ while (p && p[0] != '\0') {
/* pick out the first line or first thing until a comma */
- if ((line = strsep(&ndo->ndo_espsecret, "\n,")) == NULL) {
- line = ndo->ndo_espsecret;
- ndo->ndo_espsecret = NULL;
+ if ((line = strsep(&p, "\n,")) == NULL) {
+ line = p;
+ p = NULL;
}
- esp_print_decode_onesecret(ndo, line);
+ esp_print_decode_onesecret(ndo, line, "cmdline", 0);
}
-}
-static void esp_init(netdissect_options *ndo _U_)
-{
-
- OpenSSL_add_all_algorithms();
- EVP_add_cipher_alias(SN_des_ede3_cbc, "3des");
+ ndo->ndo_espsecret = NULL;
}
+
#endif
int
@@ -359,7 +546,6 @@
u_char *p;
EVP_CIPHER_CTX ctx;
int blocksz;
- static int initialized = 0;
#endif
esp = (struct newesp *)bp;
@@ -367,11 +553,6 @@
#ifdef HAVE_LIBCRYPTO
secret = NULL;
advance = 0;
-
- if (!initialized) {
- esp_init(ndo);
- initialized = 1;
- }
#endif
#if 0
--- tcpdump/print-esp.c.leak 2007-12-05 12:58:45.000000000 +0100
+++ tcpdump/print-esp.c 2007-12-05 12:30:47.000000000 +0100
@@ -128,6 +128,7 @@ int esp_print_decrypt_buffer_by_ikev2(ne
(*ndo->ndo_warning)(ndo, "espkey init failed");
EVP_CipherInit(&ctx, NULL, NULL, iv, 0);
EVP_Cipher(&ctx, buf, buf, len);
+ EVP_CIPHER_CTX_cleanup(&ctx);
ndo->ndo_packetp = buf;
ndo->ndo_snapend = end;
@@ -662,6 +663,7 @@ esp_print(netdissect_options *ndo,
p = ivoff;
EVP_CipherInit(&ctx, NULL, NULL, p, 0);
EVP_Cipher(&ctx, p + ivlen, p + ivlen, ep - (p + ivlen));
+ EVP_CIPHER_CTX_cleanup(&ctx);
advance = ivoff - (u_char *)esp + ivlen;
} else
advance = sizeof(struct newesp);
Index: tcpdump/interface.h
===================================================================
RCS file: /tcpdump/master/tcpdump/interface.h,v
retrieving revision 1.278
retrieving revision 1.279
diff -u -r1.278 -r1.279
--- tcpdump/interface.h 8 Aug 2007 17:20:58 -0000 1.278
+++ tcpdump/interface.h 29 Aug 2007 12:31:00 -0000 1.279
@@ -356,6 +356,7 @@
/* forward compatibility */
+#ifndef NETDISSECT_REWORKED
extern netdissect_options *gndo;
#define eflag gndo->ndo_eflag
@@ -389,3 +390,4 @@
#define snaplen gndo->ndo_snaplen
#define snapend gndo->ndo_snapend
+#endif
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