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-rw-r--r--print-snmp.c346
1 files changed, 188 insertions, 158 deletions
diff --git a/print-snmp.c b/print-snmp.c
index f5501582..1b096dcf 100644
--- a/print-snmp.c
+++ b/print-snmp.c
@@ -56,12 +56,13 @@
# @(#)snmp.awk.x 1.1 (LANL) 1/15/90
*/
-#define NETDISSECT_REWORKED
+/* \summary: Simple Network Management Protocol (SNMP) printer */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
#include <stdio.h>
#include <string.h>
@@ -70,7 +71,7 @@
#include <smi.h>
#endif
-#include "interface.h"
+#include "netdissect.h"
#undef OPAQUE /* defined in <wingdi.h> */
@@ -253,7 +254,7 @@ static const char *Form[] = {
* A structure for the OID tree for the compiled-in MIB.
* This is stored as a general-order tree.
*/
-struct obj {
+static struct obj {
const char *desc; /* name of object */
u_char oid; /* sub-id following parent */
u_char type; /* object type (unused) */
@@ -275,28 +276,46 @@ struct obj {
* Currently, this includes the prefixes for the Internet MIB, the
* private enterprises tree, and the experimental tree.
*/
+#define OID_FIRST_OCTET(x, y) (((x)*40) + (y)) /* X.690 8.19.4 */
+
+#ifndef NO_ABREV_MIB
+static const uint8_t mib_oid[] = { OID_FIRST_OCTET(1, 3), 6, 1, 2, 1 };
+#endif
+#ifndef NO_ABREV_ENTER
+static const uint8_t enterprises_oid[] = { OID_FIRST_OCTET(1, 3), 6, 1, 4, 1 };
+#endif
+#ifndef NO_ABREV_EXPERI
+static const uint8_t experimental_oid[] = { OID_FIRST_OCTET(1, 3), 6, 1, 3 };
+#endif
+#ifndef NO_ABBREV_SNMPMODS
+static const uint8_t snmpModules_oid[] = { OID_FIRST_OCTET(1, 3), 6, 1, 6, 3 };
+#endif
+
+#define OBJ_ABBREV_ENTRY(prefix, obj) \
+ { prefix, &_ ## obj ## _obj, obj ## _oid, sizeof (obj ## _oid) }
static const struct obj_abrev {
const char *prefix; /* prefix for this abrev */
struct obj *node; /* pointer into object table */
- const char *oid; /* ASN.1 encoded OID */
+ const uint8_t *oid; /* ASN.1 encoded OID */
+ size_t oid_len; /* length of OID */
} obj_abrev_list[] = {
#ifndef NO_ABREV_MIB
/* .iso.org.dod.internet.mgmt.mib */
- { "", &_mib_obj, "\53\6\1\2\1" },
+ OBJ_ABBREV_ENTRY("", mib),
#endif
#ifndef NO_ABREV_ENTER
/* .iso.org.dod.internet.private.enterprises */
- { "E:", &_enterprises_obj, "\53\6\1\4\1" },
+ OBJ_ABBREV_ENTRY("E:", enterprises),
#endif
#ifndef NO_ABREV_EXPERI
/* .iso.org.dod.internet.experimental */
- { "X:", &_experimental_obj, "\53\6\1\3" },
+ OBJ_ABBREV_ENTRY("X:", experimental),
#endif
#ifndef NO_ABBREV_SNMPMODS
/* .iso.org.dod.internet.snmpV2.snmpModules */
- { "S:", &_snmpModules_obj, "\53\6\1\6\3" },
+ OBJ_ABBREV_ENTRY("S:", snmpModules),
#endif
- { 0,0,0 }
+ { 0,0,0,0 }
};
/*
@@ -325,14 +344,11 @@ static const struct obj_abrev {
struct be {
uint32_t asnlen;
union {
- caddr_t raw;
+ const uint8_t *raw;
int32_t integer;
uint32_t uns;
const u_char *str;
- struct {
- uint32_t high;
- uint32_t low;
- } uns64;
+ uint64_t uns64;
} data;
u_short id;
u_char form, class; /* tag info */
@@ -446,13 +462,18 @@ asn1_parse(netdissect_options *ndo,
* bit set. XXX - this doesn't handle a value
* that won't fit in 32 bits.
*/
- for (id = 0; *p & ASN_BIT8; len--, hdr++, p++) {
+ id = 0;
+ ND_TCHECK(*p);
+ while (*p & ASN_BIT8) {
if (len < 1) {
ND_PRINT((ndo, "[Xtagfield?]"));
return -1;
}
- ND_TCHECK(*p);
id = (id << 7) | (*p & ~ASN_BIT8);
+ len--;
+ hdr++;
+ p++;
+ ND_TCHECK(*p);
}
if (len < 1) {
ND_PRINT((ndo, "[Xtagfield?]"));
@@ -498,6 +519,7 @@ asn1_parse(netdissect_options *ndo,
ND_PRINT((ndo, "[id?%c/%s/%d]", *Form[form], Class[class].name, id));
return -1;
}
+ ND_TCHECK2(*p, elem->asnlen);
switch (form) {
case PRIMITIVE:
@@ -514,7 +536,10 @@ asn1_parse(netdissect_options *ndo,
elem->type = BE_INT;
data = 0;
- ND_TCHECK2(*p, elem->asnlen);
+ if (elem->asnlen == 0) {
+ ND_PRINT((ndo, "[asnlen=0]"));
+ return -1;
+ }
if (*p & ASN_BIT8) /* negative */
data = -1;
for (i = elem->asnlen; i-- > 0; p++)
@@ -525,7 +550,7 @@ asn1_parse(netdissect_options *ndo,
case OBJECTID:
elem->type = BE_OID;
- elem->data.raw = (caddr_t)p;
+ elem->data.raw = (const uint8_t *)p;
break;
case ASN_NULL:
@@ -535,7 +560,7 @@ asn1_parse(netdissect_options *ndo,
default:
elem->type = BE_OCTET;
- elem->data.raw = (caddr_t)p;
+ elem->data.raw = (const uint8_t *)p;
ND_PRINT((ndo, "[P/U/%s]", Class[class].Id[id]));
break;
}
@@ -545,14 +570,13 @@ asn1_parse(netdissect_options *ndo,
switch (id) {
case IPADDR:
elem->type = BE_INETADDR;
- elem->data.raw = (caddr_t)p;
+ elem->data.raw = (const uint8_t *)p;
break;
case COUNTER:
case GAUGE:
case TIMETICKS: {
register uint32_t data;
- ND_TCHECK2(*p, elem->asnlen);
elem->type = BE_UNS;
data = 0;
for (i = elem->asnlen; i-- > 0; p++)
@@ -562,23 +586,18 @@ asn1_parse(netdissect_options *ndo,
}
case COUNTER64: {
- register uint32_t high, low;
- ND_TCHECK2(*p, elem->asnlen);
+ register uint64_t data64;
elem->type = BE_UNS64;
- high = 0, low = 0;
- for (i = elem->asnlen; i-- > 0; p++) {
- high = (high << 8) |
- ((low & 0xFF000000) >> 24);
- low = (low << 8) | *p;
- }
- elem->data.uns64.high = high;
- elem->data.uns64.low = low;
+ data64 = 0;
+ for (i = elem->asnlen; i-- > 0; p++)
+ data64 = (data64 << 8) + *p;
+ elem->data.uns64 = data64;
break;
}
default:
elem->type = BE_OCTET;
- elem->data.raw = (caddr_t)p;
+ elem->data.raw = (const uint8_t *)p;
ND_PRINT((ndo, "[P/A/%s]",
Class[class].Id[id]));
break;
@@ -606,9 +625,8 @@ asn1_parse(netdissect_options *ndo,
default:
ND_PRINT((ndo, "[P/%s/%s]", Class[class].name, Class[class].Id[id]));
- ND_TCHECK2(*p, elem->asnlen);
elem->type = BE_OCTET;
- elem->data.raw = (caddr_t)p;
+ elem->data.raw = (const uint8_t *)p;
break;
}
break;
@@ -619,12 +637,12 @@ asn1_parse(netdissect_options *ndo,
switch (id) {
case SEQUENCE:
elem->type = BE_SEQ;
- elem->data.raw = (caddr_t)p;
+ elem->data.raw = (const uint8_t *)p;
break;
default:
elem->type = BE_OCTET;
- elem->data.raw = (caddr_t)p;
+ elem->data.raw = (const uint8_t *)p;
ND_PRINT((ndo, "C/U/%s", Class[class].Id[id]));
break;
}
@@ -632,12 +650,12 @@ asn1_parse(netdissect_options *ndo,
case CONTEXT:
elem->type = BE_PDU;
- elem->data.raw = (caddr_t)p;
+ elem->data.raw = (const uint8_t *)p;
break;
default:
elem->type = BE_OCTET;
- elem->data.raw = (caddr_t)p;
+ elem->data.raw = (const uint8_t *)p;
ND_PRINT((ndo, "C/%s/%s", Class[class].name, Class[class].Id[id]));
break;
}
@@ -652,6 +670,56 @@ trunc:
return -1;
}
+static int
+asn1_print_octets(netdissect_options *ndo, struct be *elem)
+{
+ const u_char *p = (const u_char *)elem->data.raw;
+ uint32_t asnlen = elem->asnlen;
+ uint32_t i;
+
+ ND_TCHECK2(*p, asnlen);
+ for (i = asnlen; i-- > 0; p++)
+ ND_PRINT((ndo, "_%.2x", *p));
+ return 0;
+
+trunc:
+ ND_PRINT((ndo, "%s", tstr));
+ return -1;
+}
+
+static int
+asn1_print_string(netdissect_options *ndo, struct be *elem)
+{
+ register int printable = 1, first = 1;
+ const u_char *p;
+ uint32_t asnlen = elem->asnlen;
+ uint32_t i;
+
+ p = elem->data.str;
+ ND_TCHECK2(*p, asnlen);
+ for (i = asnlen; printable && i-- > 0; p++)
+ printable = ND_ISPRINT(*p);
+ p = elem->data.str;
+ if (printable) {
+ ND_PRINT((ndo, "\""));
+ if (fn_printn(ndo, p, asnlen, ndo->ndo_snapend)) {
+ ND_PRINT((ndo, "\""));
+ goto trunc;
+ }
+ ND_PRINT((ndo, "\""));
+ } else {
+ for (i = asnlen; i-- > 0; p++) {
+ ND_PRINT((ndo, first ? "%.2x" : "_%.2x", *p));
+ first = 0;
+ }
+ }
+ return 0;
+
+trunc:
+ ND_PRINT((ndo, "%s", tstr));
+ return -1;
+}
+
/*
* Display the ASN.1 object represented by the BE object.
* This used to be an integral part of asn1_parse() before the intermediate
@@ -661,33 +729,36 @@ static int
asn1_print(netdissect_options *ndo,
struct be *elem)
{
- u_char *p = (u_char *)elem->data.raw;
+ const u_char *p;
uint32_t asnlen = elem->asnlen;
uint32_t i;
switch (elem->type) {
case BE_OCTET:
- ND_TCHECK2(*p, asnlen);
- for (i = asnlen; i-- > 0; p++)
- ND_PRINT((ndo, "_%.2x", *p));
+ if (asn1_print_octets(ndo, elem) == -1)
+ return -1;
break;
case BE_NULL:
break;
case BE_OID: {
- int o = 0, first = -1, i = asnlen;
+ int o = 0, first = -1;
- if (!ndo->ndo_sflag && !ndo->ndo_nflag && asnlen > 2) {
+ p = (const u_char *)elem->data.raw;
+ i = asnlen;
+ if (!ndo->ndo_nflag && asnlen > 2) {
const struct obj_abrev *a = &obj_abrev_list[0];
- size_t a_len = strlen(a->oid);
for (; a->node; a++) {
- ND_TCHECK2(*p, a_len);
- if (memcmp(a->oid, (char *)p, a_len) == 0) {
+ if (i < a->oid_len)
+ continue;
+ if (!ND_TTEST2(*p, a->oid_len))
+ continue;
+ if (memcmp(a->oid, p, a->oid_len) == 0) {
objp = a->node->child;
- i -= strlen(a->oid);
- p += strlen(a->oid);
+ i -= a->oid_len;
+ p += a->oid_len;
ND_PRINT((ndo, "%s", a->prefix));
first = 1;
break;
@@ -695,14 +766,15 @@ asn1_print(netdissect_options *ndo,
}
}
- for (; !ndo->ndo_sflag && i-- > 0; p++) {
+ for (; i-- > 0; p++) {
ND_TCHECK(*p);
o = (o << ASN_SHIFT7) + (*p & ~ASN_BIT8);
if (*p & ASN_LONGLEN)
continue;
/*
- * first subitem encodes two items with 1st*OIDMUX+2nd
+ * first subitem encodes two items with
+ * 1st*OIDMUX+2nd
* (see X.690:1997 clause 8.19 for the details)
*/
if (first < 0) {
@@ -731,69 +803,14 @@ asn1_print(netdissect_options *ndo,
ND_PRINT((ndo, "%u", elem->data.uns));
break;
- case BE_UNS64: { /* idea borrowed from by Marshall Rose */
- double d;
- int j, carry;
- char *cpf, *cpl, last[6], first[30];
- if (elem->data.uns64.high == 0) {
- ND_PRINT((ndo, "%u", elem->data.uns64.low));
- break;
- }
- d = elem->data.uns64.high * 4294967296.0; /* 2^32 */
- if (elem->data.uns64.high <= 0x1fffff) {
- d += elem->data.uns64.low;
-#if 0 /*is looks illegal, but what is the intention?*/
- ND_PRINT((ndo, "%.f", d));
-#else
- ND_PRINT((ndo, "%f", d));
-#endif
- break;
- }
- d += (elem->data.uns64.low & 0xfffff000);
-#if 0 /*is looks illegal, but what is the intention?*/
- snprintf(first, sizeof(first), "%.f", d);
-#else
- snprintf(first, sizeof(first), "%f", d);
-#endif
- snprintf(last, sizeof(last), "%5.5d",
- elem->data.uns64.low & 0xfff);
- for (carry = 0, cpf = first+strlen(first)-1, cpl = last+4;
- cpl >= last;
- cpf--, cpl--) {
- j = carry + (*cpf - '0') + (*cpl - '0');
- if (j > 9) {
- j -= 10;
- carry = 1;
- } else {
- carry = 0;
- }
- *cpf = j + '0';
- }
- ND_PRINT((ndo, "%s", first));
+ case BE_UNS64:
+ ND_PRINT((ndo, "%" PRIu64, elem->data.uns64));
break;
- }
- case BE_STR: {
- register int printable = 1, first = 1;
- const u_char *p = elem->data.str;
- ND_TCHECK2(*p, asnlen);
- for (i = asnlen; printable && i-- > 0; p++)
- printable = ND_ISPRINT(*p);
- p = elem->data.str;
- if (printable) {
- ND_PRINT((ndo, "\""));
- if (fn_printn(ndo, p, asnlen, ndo->ndo_snapend)) {
- ND_PRINT((ndo, "\""));
- goto trunc;
- }
- ND_PRINT((ndo, "\""));
- } else
- for (i = asnlen; i-- > 0; p++) {
- ND_PRINT((ndo, first ? "%.2x" : "_%.2x", *p));
- first = 0;
- }
+ case BE_STR:
+ if (asn1_print_string(ndo, elem) == -1)
+ return -1;
break;
- }
case BE_SEQ:
ND_PRINT((ndo, "Seq(%u)", elem->asnlen));
@@ -802,6 +819,7 @@ asn1_print(netdissect_options *ndo,
case BE_INETADDR:
if (asnlen != ASNLEN_INETADDR)
ND_PRINT((ndo, "[inetaddr len!=%d]", ASNLEN_INETADDR));
+ p = (const u_char *)elem->data.raw;
ND_TCHECK2(*p, asnlen);
for (i = asnlen; i-- != 0; p++) {
ND_PRINT((ndo, (i == asnlen-1) ? "%u" : ".%u", *p));
@@ -895,12 +913,12 @@ smi_decode_oid(netdissect_options *ndo,
struct be *elem, unsigned int *oid,
unsigned int oidsize, unsigned int *oidlen)
{
- u_char *p = (u_char *)elem->data.raw;
+ const u_char *p = (const u_char *)elem->data.raw;
uint32_t asnlen = elem->asnlen;
int o = 0, first = -1, i = asnlen;
unsigned int firstval;
- for (*oidlen = 0; ndo->ndo_sflag && i-- > 0; p++) {
+ for (*oidlen = 0; i-- > 0; p++) {
ND_TCHECK(*p);
o = (o << ASN_SHIFT7) + (*p & ~ASN_BIT8);
if (*p & ASN_LONGLEN)
@@ -911,7 +929,7 @@ smi_decode_oid(netdissect_options *ndo,
* (see X.690:1997 clause 8.19 for the details)
*/
if (first < 0) {
- first = 0;
+ first = 0;
firstval = o / OIDMUX;
if (firstval > 2) firstval = 2;
o -= firstval * OIDMUX;
@@ -1029,6 +1047,10 @@ smi_print_variable(netdissect_options *ndo,
SmiNode *smiNode = NULL;
unsigned int i;
+ if (!nd_smi_module_loaded) {
+ *status = asn1_print(ndo, elem);
+ return NULL;
+ }
*status = smi_decode_oid(ndo, elem, oid, sizeof(oid) / sizeof(unsigned int),
&oidlen);
if (*status < 0)
@@ -1053,7 +1075,7 @@ smi_print_variable(netdissect_options *ndo,
static int
smi_print_value(netdissect_options *ndo,
- SmiNode *smiNode, u_char pduid, struct be *elem)
+ SmiNode *smiNode, u_short pduid, struct be *elem)
{
unsigned int i, oid[128], oidlen;
SmiType *smiType;
@@ -1114,22 +1136,24 @@ smi_print_value(netdissect_options *ndo,
if (smiType->basetype == SMI_BASETYPE_BITS) {
/* print bit labels */
} else {
- smi_decode_oid(ndo, elem, oid,
- sizeof(oid)/sizeof(unsigned int),
- &oidlen);
- smiNode = smiGetNodeByOID(oidlen, oid);
- if (smiNode) {
- if (ndo->ndo_vflag) {
- ND_PRINT((ndo, "%s::", smiGetNodeModule(smiNode)->name));
- }
- ND_PRINT((ndo, "%s", smiNode->name));
- if (smiNode->oidlen < oidlen) {
- for (i = smiNode->oidlen;
- i < oidlen; i++) {
- ND_PRINT((ndo, ".%u", oid[i]));
+ if (nd_smi_module_loaded &&
+ smi_decode_oid(ndo, elem, oid,
+ sizeof(oid)/sizeof(unsigned int),
+ &oidlen) == 0) {
+ smiNode = smiGetNodeByOID(oidlen, oid);
+ if (smiNode) {
+ if (ndo->ndo_vflag) {
+ ND_PRINT((ndo, "%s::", smiGetNodeModule(smiNode)->name));
+ }
+ ND_PRINT((ndo, "%s", smiNode->name));
+ if (smiNode->oidlen < oidlen) {
+ for (i = smiNode->oidlen;
+ i < oidlen; i++) {
+ ND_PRINT((ndo, ".%u", oid[i]));
+ }
}
+ done++;
}
- done++;
}
}
break;
@@ -1196,7 +1220,7 @@ smi_print_value(netdissect_options *ndo,
*/
static void
varbind_print(netdissect_options *ndo,
- u_char pduid, const u_char *np, u_int length)
+ u_short pduid, const u_char *np, u_int length)
{
struct be elem;
int count = 0, ind;
@@ -1217,7 +1241,7 @@ varbind_print(netdissect_options *ndo,
ND_PRINT((ndo, "[%d extra after SEQ of varbind]", length - count));
/* descend */
length = elem.asnlen;
- np = (u_char *)elem.data.raw;
+ np = (const u_char *)elem.data.raw;
for (ind = 1; length > 0; ind++) {
const u_char *vbend;
@@ -1237,7 +1261,7 @@ varbind_print(netdissect_options *ndo,
vblength = length - count;
/* descend */
length = elem.asnlen;
- np = (u_char *)elem.data.raw;
+ np = (const u_char *)elem.data.raw;
/* objName (OID) */
if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
@@ -1296,7 +1320,7 @@ snmppdu_print(netdissect_options *ndo,
u_short pduid, const u_char *np, u_int length)
{
struct be elem;
- int count = 0, error;
+ int count = 0, error_status;
/* reqId (Integer) */
if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
@@ -1319,7 +1343,7 @@ snmppdu_print(netdissect_options *ndo,
asn1_print(ndo, &elem);
return;
}
- error = 0;
+ error_status = 0;
if ((pduid == GETREQ || pduid == GETNEXTREQ || pduid == SETREQ
|| pduid == INFORMREQ || pduid == V2TRAP || pduid == REPORT)
&& elem.data.integer != 0) {
@@ -1331,7 +1355,7 @@ snmppdu_print(netdissect_options *ndo,
} else if (elem.data.integer != 0) {
char errbuf[20];
ND_PRINT((ndo, " %s", DECODE_ErrorStatus(elem.data.integer)));
- error = elem.data.integer;
+ error_status = elem.data.integer;
}
length -= count;
np += count;
@@ -1351,15 +1375,12 @@ snmppdu_print(netdissect_options *ndo,
else if (pduid == GETBULKREQ)
ND_PRINT((ndo, " M=%d", elem.data.integer));
else if (elem.data.integer != 0) {
- if (!error)
+ if (!error_status)
ND_PRINT((ndo, "[errorIndex(%d) w/o errorStatus]", elem.data.integer));
- else {
+ else
ND_PRINT((ndo, "@%d", elem.data.integer));
- error = elem.data.integer;
- }
- } else if (error) {
+ } else if (error_status) {
ND_PRINT((ndo, "[errorIndex==0]"));
- error = 0;
}
length -= count;
np += count;
@@ -1486,7 +1507,7 @@ pdu_print(netdissect_options *ndo,
ND_PRINT((ndo, " "));
/* descend into PDU */
length = pdu.asnlen;
- np = (u_char *)pdu.data.raw;
+ np = (const u_char *)pdu.data.raw;
if (version == SNMP_VERSION_1 &&
(pdu.id == GETBULKREQ || pdu.id == INFORMREQ ||
@@ -1529,7 +1550,7 @@ scopedpdu_print(netdissect_options *ndo,
const u_char *np, u_int length, int version)
{
struct be elem;
- int i, count = 0;
+ int count = 0;
/* Sequence */
if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
@@ -1540,7 +1561,7 @@ scopedpdu_print(netdissect_options *ndo,
return;
}
length = elem.asnlen;
- np = (u_char *)elem.data.raw;
+ np = (const u_char *)elem.data.raw;
/* contextEngineID (OCTET STRING) */
if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
@@ -1553,10 +1574,9 @@ scopedpdu_print(netdissect_options *ndo,
length -= count;
np += count;
- ND_PRINT((ndo, "E= "));
- for (i = 0; i < (int)elem.asnlen; i++) {
- ND_PRINT((ndo, "0x%02X", elem.data.str[i]));
- }
+ ND_PRINT((ndo, "E="));
+ if (asn1_print_octets(ndo, &elem) == -1)
+ return;
ND_PRINT((ndo, " "));
/* contextName (OCTET STRING) */
@@ -1570,7 +1590,10 @@ scopedpdu_print(netdissect_options *ndo,
length -= count;
np += count;
- ND_PRINT((ndo, "C=%.*s ", (int)elem.asnlen, elem.data.str));
+ ND_PRINT((ndo, "C="));
+ if (asn1_print_string(ndo, &elem) == -1)
+ return;
+ ND_PRINT((ndo, " "));
pdu_print(ndo, np, length, version);
}
@@ -1595,10 +1618,14 @@ community_print(netdissect_options *ndo,
}
/* default community */
if (!(elem.asnlen == sizeof(DEF_COMMUNITY) - 1 &&
- strncmp((char *)elem.data.str, DEF_COMMUNITY,
- sizeof(DEF_COMMUNITY) - 1) == 0))
+ strncmp((const char *)elem.data.str, DEF_COMMUNITY,
+ sizeof(DEF_COMMUNITY) - 1) == 0)) {
/* ! "public" */
- ND_PRINT((ndo, "C=%.*s ", (int)elem.asnlen, elem.data.str));
+ ND_PRINT((ndo, "C="));
+ if (asn1_print_string(ndo, &elem) == -1)
+ return;
+ ND_PRINT((ndo, " "));
+ }
length -= count;
np += count;
@@ -1624,7 +1651,7 @@ usm_print(netdissect_options *ndo,
return;
}
length = elem.asnlen;
- np = (u_char *)elem.data.raw;
+ np = (const u_char *)elem.data.raw;
/* msgAuthoritativeEngineID (OCTET STRING) */
if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
@@ -1674,7 +1701,10 @@ usm_print(netdissect_options *ndo,
length -= count;
np += count;
- ND_PRINT((ndo, "U=%.*s ", (int)elem.asnlen, elem.data.str));
+ ND_PRINT((ndo, "U="));
+ if (asn1_print_string(ndo, &elem) == -1)
+ return;
+ ND_PRINT((ndo, " "));
/* msgAuthenticationParameters (OCTET STRING) */
if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
@@ -1725,7 +1755,7 @@ v3msg_print(netdissect_options *ndo,
return;
}
length = elem.asnlen;
- np = (u_char *)elem.data.raw;
+ np = (const u_char *)elem.data.raw;
if (ndo->ndo_vflag) {
ND_PRINT((ndo, "{ "));
@@ -1864,7 +1894,7 @@ snmp_print(netdissect_options *ndo,
ND_PRINT((ndo, "[%d extra after iSEQ]", length - count));
/* descend */
length = elem.asnlen;
- np = (u_char *)elem.data.raw;
+ np = (const u_char *)elem.data.raw;
/* Version (INTEGER) */
if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
@@ -1883,7 +1913,7 @@ snmp_print(netdissect_options *ndo,
ND_PRINT((ndo, "{ %s ", SnmpVersion[elem.data.integer]));
break;
default:
- ND_PRINT((ndo, "[version = %d]", elem.data.integer));
+ ND_PRINT((ndo, "SNMP [version = %d]", elem.data.integer));
return;
}
version = elem.data.integer;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 05:02:36 +0000