# @(#)snmp.awk.x 1.1 (LANL) 1/15/90
*/
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
+/* \summary: Simple Network Management Protocol (SNMP) printer */
+
+#include <config.h>
-#include <tcpdump-stdinc.h>
+#include "netdissect-stdinc.h"
#include <stdio.h>
#include <string.h>
+#include <limits.h>
-#ifdef HAVE_SMI_H
+#ifdef USE_LIBSMI
#include <smi.h>
#endif
-#include "interface.h"
-#include "addrtoname.h"
+#include "netdissect-ctype.h"
+
+#include "netdissect.h"
+#include "extract.h"
#undef OPAQUE /* defined in <wingdi.h> */
-static const char tstr[] = "[|snmp]";
/*
* Universal ASN.1 types
* 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) */
* 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 }
};
/*
} while ((objp = objp->next) != NULL); \
} \
if (objp) { \
- printf(suppressdot?"%s":".%s", objp->desc); \
+ ND_PRINT(suppressdot?"%s":".%s", objp->desc); \
objp = objp->child; \
} else \
- printf(suppressdot?"%u":".%u", (o)); \
+ ND_PRINT(suppressdot?"%u":".%u", (o)); \
}
/*
* temporary internal representation while decoding an ASN.1 data stream.
*/
struct be {
- u_int32_t asnlen;
+ uint32_t asnlen;
union {
- caddr_t raw;
+ const uint8_t *raw;
int32_t integer;
- u_int32_t uns;
+ uint32_t uns;
const u_char *str;
- struct {
- u_int32_t high;
- u_int32_t low;
- } uns64;
+ uint64_t uns64;
} data;
u_short id;
u_char form, class; /* tag info */
* O/w, this returns the number of bytes parsed from "p".
*/
static int
-asn1_parse(register const u_char *p, u_int len, struct be *elem)
+asn1_parse(netdissect_options *ndo,
+ const u_char *p, u_int len, struct be *elem)
{
u_char form, class, id;
- int i, hdr;
+ u_int i, hdr;
elem->asnlen = 0;
elem->type = BE_ANY;
if (len < 1) {
- fputs("[nothing to parse]", stdout);
+ ND_PRINT("[nothing to parse]");
return -1;
}
- TCHECK(*p);
/*
* it would be nice to use a bit field, but you can't depend on them.
* +---+---+---+---+---+---+---+---+
* 7 6 5 4 3 2 1 0
*/
- id = *p & ASN_ID_BITS; /* lower 5 bits, range 00-1f */
+ id = GET_U_1(p) & ASN_ID_BITS; /* lower 5 bits, range 00-1f */
#ifdef notdef
- form = (*p & 0xe0) >> 5; /* move upper 3 bits to lower 3 */
+ form = (GET_U_1(p) & 0xe0) >> 5; /* move upper 3 bits to lower 3 */
class = form >> 1; /* bits 7&6 -> bits 1&0, range 0-3 */
form &= 0x1; /* bit 5 -> bit 0, range 0-1 */
#else
- form = (u_char)(*p & ASN_FORM_BITS) >> ASN_FORM_SHIFT;
- class = (u_char)(*p & ASN_CLASS_BITS) >> ASN_CLASS_SHIFT;
+ form = (u_char)(GET_U_1(p) & ASN_FORM_BITS) >> ASN_FORM_SHIFT;
+ class = (u_char)(GET_U_1(p) & ASN_CLASS_BITS) >> ASN_CLASS_SHIFT;
#endif
elem->form = form;
elem->class = class;
* 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;
+ while (GET_U_1(p) & ASN_BIT8) {
if (len < 1) {
- fputs("[Xtagfield?]", stdout);
+ ND_PRINT("[Xtagfield?]");
return -1;
}
- TCHECK(*p);
- id = (id << 7) | (*p & ~ASN_BIT8);
+ id = (id << 7) | (GET_U_1(p) & ~ASN_BIT8);
+ len--;
+ hdr++;
+ p++;
}
if (len < 1) {
- fputs("[Xtagfield?]", stdout);
+ ND_PRINT("[Xtagfield?]");
return -1;
}
- TCHECK(*p);
- elem->id = id = (id << 7) | *p;
+ elem->id = id = (id << 7) | GET_U_1(p);
--len;
++hdr;
++p;
}
if (len < 1) {
- fputs("[no asnlen]", stdout);
+ ND_PRINT("[no asnlen]");
return -1;
}
- TCHECK(*p);
- elem->asnlen = *p;
+ elem->asnlen = GET_U_1(p);
p++; len--; hdr++;
if (elem->asnlen & ASN_BIT8) {
- u_int32_t noct = elem->asnlen % ASN_BIT8;
+ uint32_t noct = elem->asnlen % ASN_BIT8;
elem->asnlen = 0;
if (len < noct) {
- printf("[asnlen? %d<%d]", len, noct);
+ ND_PRINT("[asnlen? %d<%d]", len, noct);
return -1;
}
- TCHECK2(*p, noct);
- for (; noct-- > 0; len--, hdr++)
- elem->asnlen = (elem->asnlen << ASN_SHIFT8) | *p++;
+ ND_TCHECK_LEN(p, noct);
+ for (; noct != 0; len--, hdr++, noct--) {
+ elem->asnlen = (elem->asnlen << ASN_SHIFT8) | GET_U_1(p);
+ p++;
+ }
}
if (len < elem->asnlen) {
-
printf("[len%d<asnlen%u]", len, elem->asnlen);
+
ND_PRINT("[len%d<asnlen%u]", len, elem->asnlen);
return -1;
}
if (form >= sizeof(Form)/sizeof(Form[0])) {
- printf("[form?%d]", form);
+ ND_PRINT("[form?%d]", form);
return -1;
}
if (class >= sizeof(Class)/sizeof(Class[0])) {
- printf("[class?%c/%d]", *Form[form], class);
+ ND_PRINT("[class?%c/%d]", *Form[form], class);
return -1;
}
if ((int)id >= Class[class].numIDs) {
- printf("[id?%c/%s/%d]", *Form[form], Class[class].name, id);
+ ND_PRINT("[id?%c/%s/%d]", *Form[form], Class[class].name, id);
return -1;
}
+ ND_TCHECK_LEN(p, elem->asnlen);
switch (form) {
case PRIMITIVE:
break;
case INTEGER: {
- register int32_t data;
+ uint32_t data;
elem->type = BE_INT;
data = 0;
- TCHECK2(*p, elem->asnlen);
- if (*p & ASN_BIT8) /* negative */
- data = -1;
- for (i = elem->asnlen; i-- > 0; p++)
- data = (data << ASN_SHIFT8) | *p;
+ if (elem->asnlen == 0) {
+ ND_PRINT("[asnlen=0]");
+ return -1;
+ }
+ if (GET_U_1(p) & ASN_BIT8) /* negative */
+ data = UINT_MAX;
+ for (i = elem->asnlen; i != 0; p++, i--)
+ data = (data << ASN_SHIFT8) | GET_U_1(p);
elem->data.integer = data;
break;
}
case OBJECTID:
elem->type = BE_OID;
- elem->data.raw = (caddr_t)p;
+ elem->data.raw = (const uint8_t *)p;
break;
case ASN_NULL:
default:
elem->type = BE_OCTET;
- elem->data.raw = (caddr_t)p;
- printf("[P/U/%s]",
- Class[class].Id[id]);
+ elem->data.raw = (const uint8_t *)p;
+ ND_PRINT("[P/U/%s]", Class[class].Id[id]);
break;
}
break;
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 u_int32_t data;
- TCHECK2(*p, elem->asnlen);
+ uint32_t data;
elem->type = BE_UNS;
data = 0;
- for (i = elem->asnlen; i-- > 0; p++)
- data = (data << 8) + *p;
+ for (i = elem->asnlen; i != 0; p++, i--)
+ data = (data << 8) + GET_U_1(p);
elem->data.uns = data;
break;
}
case COUNTER64: {
- register u_int32_t high, low;
- TCHECK2(*p, elem->asnlen);
+ 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++, i--)
+ data64 = (data64 << 8) + GET_U_1(p);
+ elem->data.uns64 = data64;
break;
}
default:
elem->type = BE_OCTET;
- elem->data.raw = (caddr_t)p;
- printf("[P/A/%s]",
+ elem->data.raw = (const uint8_t *)p;
+ ND_PRINT("[P/A/%s]",
Class[class].Id[id]);
break;
}
break;
default:
- printf("[P/%s/%s]",
- Class[class].name, Class[class].Id[id]);
- TCHECK2(*p, elem->asnlen);
+ ND_PRINT("[P/%s/%s]", Class[class].name, Class[class].Id[id]);
elem->type = BE_OCTET;
- elem->data.raw = (caddr_t)p;
+ elem->data.raw = (const uint8_t *)p;
break;
}
break;
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;
- printf("C/U/%s", Class[class].Id[id]);
+ elem->data.raw = (const uint8_t *)p;
+ ND_PRINT("C/U/%s", Class[class].Id[id]);
break;
}
break;
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;
- printf("C/%s/%s",
- Class[class].name, Class[class].Id[id]);
+ elem->data.raw = (const uint8_t *)p;
+ ND_PRINT("C/%s/%s", Class[class].name, Class[class].Id[id]);
break;
}
break;
return elem->asnlen + hdr;
trunc:
- printf("%s", tstr);
+ nd_print_trunc(ndo);
+ 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_TCHECK_LEN(p, asnlen);
+ for (i = asnlen; i != 0; p++, i--)
+ ND_PRINT("_%.2x", GET_U_1(p));
+ return 0;
+
+trunc:
+ nd_print_trunc(ndo);
+ return -1;
+}
+
+static int
+asn1_print_string(netdissect_options *ndo, struct be *elem)
+{
+ int printable = 1, first = 1;
+ const u_char *p;
+ uint32_t asnlen = elem->asnlen;
+ uint32_t i;
+
+ p = elem->data.str;
+ ND_TCHECK_LEN(p, asnlen);
+ for (i = asnlen; printable && i != 0; p++, i--)
+ printable = ND_ASCII_ISPRINT(GET_U_1(p));
+ p = elem->data.str;
+ if (printable) {
+ ND_PRINT("\"");
+ if (nd_printn(ndo, p, asnlen, ndo->ndo_snapend)) {
+ ND_PRINT("\"");
+ goto trunc;
+ }
+ ND_PRINT("\"");
+ } else {
+ for (i = asnlen; i != 0; p++, i--) {
+ ND_PRINT(first ? "%.2x" : "_%.2x", GET_U_1(p));
+ first = 0;
+ }
+ }
+ return 0;
+
+trunc:
+ nd_print_trunc(ndo);
return -1;
}
* BE form was added.
*/
static int
-asn1_print(struct be *elem)
+asn1_print(netdissect_options *ndo,
+ struct be *elem)
{
- u_char *p = (u_char *)elem->data.raw;
- u_int32_t asnlen = elem->asnlen;
- u_int32_t i;
+ const u_char *p;
+ uint32_t asnlen = elem->asnlen;
+ uint32_t i;
switch (elem->type) {
case BE_OCTET:
- TCHECK2(*p, asnlen);
- for (i = asnlen; i-- > 0; p++)
- printf("_%.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 first = -1;
+ uint32_t o = 0;
- if (!sflag && !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++) {
- TCHECK2(*p, a_len);
- if (memcmp(a->oid, (char *)p, a_len) == 0) {
+ if (i < a->oid_len)
+ continue;
+ if (!ND_TTEST_LEN(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);
- fputs(a->prefix, stdout);
+ i -= a->oid_len;
+ p += a->oid_len;
+ ND_PRINT("%s", a->prefix);
first = 1;
break;
}
}
}
- for (; !sflag && i-- > 0; p++) {
- TCHECK(*p);
- o = (o << ASN_SHIFT7) + (*p & ~ASN_BIT8);
- if (*p & ASN_LONGLEN)
+ for (; i != 0; p++, i--) {
+ o = (o << ASN_SHIFT7) + (GET_U_1(p) & ~ASN_BIT8);
+ if (GET_U_1(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) {
int s;
- if (!nflag)
+ if (!ndo->ndo_nflag)
objp = mibroot;
first = 0;
s = o / OIDMUX;
}
case BE_INT:
- printf("%d", elem->data.integer);
+ ND_PRINT("%d", elem->data.integer);
break;
case BE_UNS:
- printf("%u", elem->data.uns);
+ ND_PRINT("%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) {
- printf("%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?*/
- printf("%.f", d);
-#else
- printf("%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';
- }
- fputs(first, stdout);
+ case BE_UNS64:
+ ND_PRINT("%" PRIu64, elem->data.uns64);
break;
- }
- case BE_STR: {
- register int printable = 1, first = 1;
- const u_char *p = elem->data.str;
- TCHECK2(*p, asnlen);
- for (i = asnlen; printable && i-- > 0; p++)
- printable = isprint(*p) || isspace(*p);
- p = elem->data.str;
- if (printable) {
- putchar('"');
- if (fn_printn(p, asnlen, snapend)) {
- putchar('"');
- goto trunc;
- }
- putchar('"');
- } else
- for (i = asnlen; i-- > 0; p++) {
- printf(first ? "%.2x" : "_%.2x", *p);
- first = 0;
- }
+ case BE_STR:
+ if (asn1_print_string(ndo, elem) == -1)
+ return -1;
break;
- }
case BE_SEQ:
- printf("Seq(%u)", elem->asnlen);
+ ND_PRINT("Seq(%u)", elem->asnlen);
break;
case BE_INETADDR:
if (asnlen != ASNLEN_INETADDR)
- printf("[inetaddr len!=%d]", ASNLEN_INETADDR);
- TCHECK2(*p, asnlen);
- for (i = asnlen; i-- != 0; p++) {
- printf((i == asnlen-1) ? "%u" : ".%u", *p);
+ ND_PRINT("[inetaddr len!=%d]", ASNLEN_INETADDR);
+ p = (const u_char *)elem->data.raw;
+ ND_TCHECK_LEN(p, asnlen);
+ for (i = asnlen; i != 0; p++, i--) {
+ ND_PRINT((i == asnlen) ? "%u" : ".%u", GET_U_1(p));
}
break;
case BE_NOSUCHOBJECT:
case BE_NOSUCHINST:
case BE_ENDOFMIBVIEW:
- printf("[%s]", Class[EXCEPTIONS].Id[elem->id]);
+ ND_PRINT("[%s]", Class[EXCEPTIONS].Id[elem->id]);
break;
case BE_PDU:
- printf("%s(%u)",
- Class[CONTEXT].Id[elem->id], elem->asnlen);
+ ND_PRINT("%s(%u)", Class[CONTEXT].Id[elem->id], elem->asnlen);
break;
case BE_ANY:
- fputs("[BE_ANY!?]", stdout);
+ ND_PRINT("[BE_ANY!?]");
break;
default:
- fputs("[be!?]", stdout);
+ ND_PRINT("[be!?]");
break;
}
return 0;
trunc:
- printf("%s", tstr);
+ nd_print_trunc(ndo);
return -1;
}
int i = 0;
while (i >= 0 && length > 0) {
- i = asn1_parse(p, length, &elem);
+ i = asn1_parse(ndo, p, length, &elem);
if (i >= 0) {
- fputs(" ", stdout);
- if (asn1_print(&elem) < 0)
+ ND_PRINT(" ");
+ if (asn1_print(ndo, &elem) < 0)
return;
if (elem.type == BE_SEQ || elem.type == BE_PDU) {
- fputs(" {", stdout);
+ ND_PRINT(" {");
asn1_decode(elem.data.raw, elem.asnlen);
- fputs(" }", stdout);
+ ND_PRINT(" }");
}
length -= i;
p += i;
}
#endif
-#ifdef LIBSMI
+#ifdef USE_LIBSMI
struct smi2be {
SmiBasetype basetype;
};
static int
-smi_decode_oid(struct be *elem, unsigned int *oid,
- unsigned int oidsize, unsigned int *oidlen)
+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;
- u_int32_t asnlen = elem->asnlen;
- int o = 0, first = -1, i = asnlen;
-
- for (*oidlen = 0; sflag && i-- > 0; p++) {
- TCHECK(*p);
- o = (o << ASN_SHIFT7) + (*p & ~ASN_BIT8);
- if (*p & ASN_LONGLEN)
+ const u_char *p = (const u_char *)elem->data.raw;
+ uint32_t asnlen = elem->asnlen;
+ uint32_t i = asnlen;
+ int o = 0, first = -1;
+ unsigned int firstval;
+
+ for (*oidlen = 0; i != 0; p++, i--) {
+ o = (o << ASN_SHIFT7) + (GET_U_1(p) & ~ASN_BIT8);
+ if (GET_U_1(p) & ASN_LONGLEN)
continue;
/*
* (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;
if (*oidlen < oidsize) {
- oid[*oidlen] = o / OIDMUX;
- if (oid[*oidlen] > 2) oid[*oidlen] = 2;
+ oid[(*oidlen)++] = firstval;
}
- o -= oid[*oidlen] * OIDMUX;
- if (*oidlen < oidsize) (*oidlen)++;
}
if (*oidlen < oidsize) {
oid[(*oidlen)++] = o;
o = 0;
}
return 0;
-
-trunc:
- printf("%s", tstr);
- return -1;
}
static int smi_check_type(SmiBasetype basetype, int be)
return ok;
}
-static SmiNode *smi_print_variable(struct be *elem, int *status)
+static SmiNode *
+smi_print_variable(netdissect_options *ndo,
+ struct be *elem, int *status)
{
unsigned int oid[128], oidlen;
SmiNode *smiNode = NULL;
unsigned int i;
- *status = smi_decode_oid(elem, oid, sizeof(oid)/sizeof(unsigned int),
+ 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)
return NULL;
smiNode = smiGetNodeByOID(oidlen, oid);
if (! smiNode) {
- *status = asn1_print(elem);
+ *status = asn1_print(ndo, elem);
return NULL;
}
- if (vflag) {
- fputs(smiGetNodeModule(smiNode)->name, stdout);
- fputs("::", stdout);
+ if (ndo->ndo_vflag) {
+ ND_PRINT("%s::", smiGetNodeModule(smiNode)->name);
}
- fputs(smiNode->name, stdout);
+ ND_PRINT("%s", smiNode->name);
if (smiNode->oidlen < oidlen) {
- for (i = smiNode->oidlen; i < oidlen; i++) {
- printf(".%u", oid[i]);
+ for (i = smiNode->oidlen; i < oidlen; i++) {
+ ND_PRINT(".%u", oid[i]);
}
}
*status = 0;
}
static int
-smi_print_value(SmiNode *smiNode, u_char pduid, struct be *elem)
+smi_print_value(netdissect_options *ndo,
+ SmiNode *smiNode, u_short pduid, struct be *elem)
{
unsigned int i, oid[128], oidlen;
SmiType *smiType;
if (! smiNode || ! (smiNode->nodekind
& (SMI_NODEKIND_SCALAR | SMI_NODEKIND_COLUMN))) {
- return asn1_print(elem);
+ return asn1_print(ndo, elem);
}
if (elem->type == BE_NOSUCHOBJECT
|| elem->type == BE_NOSUCHINST
|| elem->type == BE_ENDOFMIBVIEW) {
- return asn1_print(elem);
+ return asn1_print(ndo, elem);
}
if (NOTIFY_CLASS(pduid) && smiNode->access < SMI_ACCESS_NOTIFY) {
- fputs("[notNotifyable]", stdout);
+ ND_PRINT("[notNotifiable]");
}
if (READ_CLASS(pduid) && smiNode->access < SMI_ACCESS_READ_ONLY) {
- fputs("[notReadable]", stdout);
+ ND_PRINT("[notReadable]");
}
if (WRITE_CLASS(pduid) && smiNode->access < SMI_ACCESS_READ_WRITE) {
- fputs("[notWritable]", stdout);
+ ND_PRINT("[notWritable]");
}
if (RESPONSE_CLASS(pduid)
&& smiNode->access == SMI_ACCESS_NOT_ACCESSIBLE) {
- fputs("[noAccess]", stdout);
+ ND_PRINT("[noAccess]");
}
smiType = smiGetNodeType(smiNode);
if (! smiType) {
- return asn1_print(elem);
+ return asn1_print(ndo, elem);
}
if (! smi_check_type(smiType->basetype, elem->type)) {
- fputs("[wrongType]", stdout);
+ ND_PRINT("[wrongType]");
}
if (! smi_check_range(smiType, elem)) {
- fputs("[outOfRange]", stdout);
+ ND_PRINT("[outOfRange]");
}
/* resolve bits to named bits */
if (smiType->basetype == SMI_BASETYPE_BITS) {
/* print bit labels */
} else {
- smi_decode_oid(elem, oid,
- sizeof(oid)/sizeof(unsigned int),
- &oidlen);
- smiNode = smiGetNodeByOID(oidlen, oid);
- if (smiNode) {
- if (vflag) {
- fputs(smiGetNodeModule(smiNode)->name, stdout);
- fputs("::", stdout);
- }
- fputs(smiNode->name, stdout);
- if (smiNode->oidlen < oidlen) {
- for (i = smiNode->oidlen;
- i < oidlen; i++) {
- printf(".%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("%s::", smiGetNodeModule(smiNode)->name);
+ }
+ ND_PRINT("%s", smiNode->name);
+ if (smiNode->oidlen < oidlen) {
+ for (i = smiNode->oidlen;
+ i < oidlen; i++) {
+ ND_PRINT(".%u", oid[i]);
+ }
}
+ done++;
}
- done++;
}
}
break;
nn = smiGetNextNamedNumber(nn)) {
if (nn->value.value.integer32
== elem->data.integer) {
- fputs(nn->name, stdout);
- printf("(%d)", elem->data.integer);
+ ND_PRINT("%s", nn->name);
+ ND_PRINT("(%d)", elem->data.integer);
done++;
break;
}
}
if (! done) {
- return asn1_print(elem);
+ return asn1_print(ndo, elem);
}
return 0;
}
* Decode SNMP varBind
*/
static void
-varbind_print(u_char pduid, const u_char *np, u_int length)
+varbind_print(netdissect_options *ndo,
+ u_short pduid, const u_char *np, u_int length)
{
struct be elem;
- int count = 0, ind;
-#ifdef LIBSMI
+ int count = 0;
+#ifdef USE_LIBSMI
SmiNode *smiNode = NULL;
#endif
int status;
/* Sequence of varBind */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_SEQ) {
- fputs("[!SEQ of varbind]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[!SEQ of varbind]");
+ asn1_print(ndo, &elem);
return;
}
if ((u_int)count < length)
- printf("[%d extra after SEQ of varbind]", length - count);
+ ND_PRINT("[%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++) {
+ while (length) {
const u_char *vbend;
u_int vblength;
- fputs(" ", stdout);
+ ND_PRINT(" ");
/* Sequence */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_SEQ) {
- fputs("[!varbind]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[!varbind]");
+ asn1_print(ndo, &elem);
return;
}
vbend = np + count;
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(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_OID) {
- fputs("[objName!=OID]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[objName!=OID]");
+ asn1_print(ndo, &elem);
return;
}
-#ifdef LIBSMI
- smiNode = smi_print_variable(&elem, &status);
+#ifdef USE_LIBSMI
+ smiNode = smi_print_variable(ndo, &elem, &status);
#else
- status = asn1_print(&elem);
+ status = asn1_print(ndo, &elem);
#endif
if (status < 0)
return;
if (pduid != GETREQ && pduid != GETNEXTREQ
&& pduid != GETBULKREQ)
- fputs("=", stdout);
+ ND_PRINT("=");
/* objVal (ANY) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (pduid == GETREQ || pduid == GETNEXTREQ
|| pduid == GETBULKREQ) {
if (elem.type != BE_NULL) {
- fputs("[objVal!=NULL]", stdout);
- if (asn1_print(&elem) < 0)
+ ND_PRINT("[objVal!=NULL]");
+ if (asn1_print(ndo, &elem) < 0)
return;
}
} else {
if (elem.type != BE_NULL) {
-#ifdef LIBSMI
- status = smi_print_value(smiNode, pduid, &elem);
+#ifdef USE_LIBSMI
+ status = smi_print_value(ndo, smiNode, pduid, &elem);
#else
- status = asn1_print(&elem);
+ status = asn1_print(ndo, &elem);
#endif
}
if (status < 0)
* GetBulk, Inform, V2Trap, and Report
*/
static void
-snmppdu_print(u_short pduid, const u_char *np, u_int length)
+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(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_INT) {
- fputs("[reqId!=INT]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[reqId!=INT]");
+ asn1_print(ndo, &elem);
return;
}
- if (vflag)
- printf("R=%d ", elem.data.integer);
+ if (ndo->ndo_vflag)
+ ND_PRINT("R=%d ", elem.data.integer);
length -= count;
np += count;
/* errorStatus (Integer) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_INT) {
- fputs("[errorStatus!=INT]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[errorStatus!=INT]");
+ 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) {
char errbuf[20];
- printf("[errorStatus(%s)!=0]",
+ ND_PRINT("[errorStatus(%s)!=0]",
DECODE_ErrorStatus(elem.data.integer));
} else if (pduid == GETBULKREQ) {
- printf(" N=%d", elem.data.integer);
+ ND_PRINT(" N=%d", elem.data.integer);
} else if (elem.data.integer != 0) {
char errbuf[20];
- printf(" %s", DECODE_ErrorStatus(elem.data.integer));
- error = elem.data.integer;
+ ND_PRINT(" %s", DECODE_ErrorStatus(elem.data.integer));
+ error_status = elem.data.integer;
}
length -= count;
np += count;
/* errorIndex (Integer) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_INT) {
- fputs("[errorIndex!=INT]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[errorIndex!=INT]");
+ asn1_print(ndo, &elem);
return;
}
if ((pduid == GETREQ || pduid == GETNEXTREQ || pduid == SETREQ
|| pduid == INFORMREQ || pduid == V2TRAP || pduid == REPORT)
&& elem.data.integer != 0)
- printf("[errorIndex(%d)!=0]", elem.data.integer);
+ ND_PRINT("[errorIndex(%d)!=0]", elem.data.integer);
else if (pduid == GETBULKREQ)
- printf(" M=%d", elem.data.integer);
+ ND_PRINT(" M=%d", elem.data.integer);
else if (elem.data.integer != 0) {
- if (!error)
- printf("[errorIndex(%d) w/o errorStatus]",
- elem.data.integer);
- else {
- printf("@%d", elem.data.integer);
- error = elem.data.integer;
- }
- } else if (error) {
- fputs("[errorIndex==0]", stdout);
- error = 0;
+ if (!error_status)
+ ND_PRINT("[errorIndex(%d) w/o errorStatus]", elem.data.integer);
+ else
+ ND_PRINT("@%d", elem.data.integer);
+ } else if (error_status) {
+ ND_PRINT("[errorIndex==0]");
}
length -= count;
np += count;
- varbind_print(pduid, np, length);
- return;
+ varbind_print(ndo, pduid, np, length);
}
/*
* Decode SNMP Trap PDU
*/
static void
-trappdu_print(const u_char *np, u_int length)
+trappdu_print(netdissect_options *ndo,
+ const u_char *np, u_int length)
{
struct be elem;
int count = 0, generic;
- putchar(' ');
+ ND_PRINT(" ");
/* enterprise (oid) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_OID) {
- fputs("[enterprise!=OID]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[enterprise!=OID]");
+ asn1_print(ndo, &elem);
return;
}
- if (asn1_print(&elem) < 0)
+ if (asn1_print(ndo, &elem) < 0)
return;
length -= count;
np += count;
- putchar(' ');
+ ND_PRINT(" ");
/* agent-addr (inetaddr) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_INETADDR) {
- fputs("[agent-addr!=INETADDR]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[agent-addr!=INETADDR]");
+ asn1_print(ndo, &elem);
return;
}
- if (asn1_print(&elem) < 0)
+ if (asn1_print(ndo, &elem) < 0)
return;
length -= count;
np += count;
/* generic-trap (Integer) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_INT) {
- fputs("[generic-trap!=INT]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[generic-trap!=INT]");
+ asn1_print(ndo, &elem);
return;
}
generic = elem.data.integer;
{
char buf[20];
- printf(" %s", DECODE_GenericTrap(generic));
+ ND_PRINT(" %s", DECODE_GenericTrap(generic));
}
length -= count;
np += count;
/* specific-trap (Integer) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_INT) {
- fputs("[specific-trap!=INT]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[specific-trap!=INT]");
+ asn1_print(ndo, &elem);
return;
}
if (generic != GT_ENTERPRISE) {
if (elem.data.integer != 0)
- printf("[specific-trap(%d)!=0]", elem.data.integer);
+ ND_PRINT("[specific-trap(%d)!=0]", elem.data.integer);
} else
- printf(" s=%d", elem.data.integer);
+ ND_PRINT(" s=%d", elem.data.integer);
length -= count;
np += count;
- putchar(' ');
+ ND_PRINT(" ");
/* time-stamp (TimeTicks) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_UNS) { /* XXX */
- fputs("[time-stamp!=TIMETICKS]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[time-stamp!=TIMETICKS]");
+ asn1_print(ndo, &elem);
return;
}
- if (asn1_print(&elem) < 0)
+ if (asn1_print(ndo, &elem) < 0)
return;
length -= count;
np += count;
- varbind_print (TRAP, np, length);
- return;
+ varbind_print(ndo, TRAP, np, length);
}
/*
* Decode arbitrary SNMP PDUs.
*/
static void
-pdu_print(const u_char *np, u_int length, int version)
+pdu_print(netdissect_options *ndo,
+ const u_char *np, u_int length, int version)
{
struct be pdu;
int count = 0;
/* PDU (Context) */
- if ((count = asn1_parse(np, length, &pdu)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &pdu)) < 0)
return;
if (pdu.type != BE_PDU) {
- fputs("[no PDU]", stdout);
+ ND_PRINT("[no PDU]");
return;
}
if ((u_int)count < length)
- printf("[%d extra after PDU]", length - count);
- if (vflag) {
- fputs("{ ", stdout);
+ ND_PRINT("[%d extra after PDU]", length - count);
+ if (ndo->ndo_vflag) {
+ ND_PRINT("{ ");
}
- if (asn1_print(&pdu) < 0)
+ if (asn1_print(ndo, &pdu) < 0)
return;
- fputs(" ", stdout);
+ ND_PRINT(" ");
/* 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 ||
pdu.id == V2TRAP || pdu.id == REPORT)) {
- printf("[v2 PDU in v1 message]");
+ ND_PRINT("[v2 PDU in v1 message]");
return;
}
if (version == SNMP_VERSION_2 && pdu.id == TRAP) {
- printf("[v1 PDU in v2 message]");
+ ND_PRINT("[v1 PDU in v2 message]");
return;
}
switch (pdu.id) {
case TRAP:
- trappdu_print(np, length);
+ trappdu_print(ndo, np, length);
break;
case GETREQ:
case GETNEXTREQ:
case INFORMREQ:
case V2TRAP:
case REPORT:
- snmppdu_print(pdu.id, np, length);
+ snmppdu_print(ndo, pdu.id, np, length);
break;
}
- if (vflag) {
- fputs(" } ", stdout);
+ if (ndo->ndo_vflag) {
+ ND_PRINT(" } ");
}
}
* Decode a scoped SNMP PDU.
*/
static void
-scopedpdu_print(const u_char *np, u_int length, int version)
+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(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_SEQ) {
- fputs("[!scoped PDU]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[!scoped PDU]");
+ asn1_print(ndo, &elem);
return;
}
length = elem.asnlen;
- np = (u_char *)elem.data.raw;
+ np = (const u_char *)elem.data.raw;
/* contextEngineID (OCTET STRING) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_STR) {
- fputs("[contextEngineID!=STR]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[contextEngineID!=STR]");
+ asn1_print(ndo, &elem);
return;
}
length -= count;
np += count;
- fputs("E= ", stdout);
- for (i = 0; i < (int)elem.asnlen; i++) {
- printf("0x%02X", elem.data.str[i]);
- }
- fputs(" ", stdout);
+ ND_PRINT("E=");
+ if (asn1_print_octets(ndo, &elem) == -1)
+ return;
+ ND_PRINT(" ");
/* contextName (OCTET STRING) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_STR) {
- fputs("[contextName!=STR]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[contextName!=STR]");
+ asn1_print(ndo, &elem);
return;
}
length -= count;
np += count;
- printf("C=%.*s ", (int)elem.asnlen, elem.data.str);
+ ND_PRINT("C=");
+ if (asn1_print_string(ndo, &elem) == -1)
+ return;
+ ND_PRINT(" ");
- pdu_print(np, length, version);
+ pdu_print(ndo, np, length, version);
}
/*
* Decode SNMP Community Header (SNMPv1 and SNMPv2c)
*/
static void
-community_print(const u_char *np, u_int length, int version)
+community_print(netdissect_options *ndo,
+ const u_char *np, u_int length, int version)
{
struct be elem;
int count = 0;
/* Community (String) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_STR) {
- fputs("[comm!=STR]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[comm!=STR]");
+ asn1_print(ndo, &elem);
return;
}
/* 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" */
- printf("C=%.*s ", (int)elem.asnlen, elem.data.str);
+ ND_PRINT("C=");
+ if (asn1_print_string(ndo, &elem) == -1)
+ return;
+ ND_PRINT(" ");
+ }
length -= count;
np += count;
- pdu_print(np, length, version);
+ pdu_print(ndo, np, length, version);
}
/*
* Decode SNMPv3 User-based Security Message Header (SNMPv3)
*/
static void
-usm_print(const u_char *np, u_int length)
+usm_print(netdissect_options *ndo,
+ const u_char *np, u_int length)
{
struct be elem;
int count = 0;
/* Sequence */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_SEQ) {
- fputs("[!usm]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[!usm]");
+ asn1_print(ndo, &elem);
return;
}
length = elem.asnlen;
- np = (u_char *)elem.data.raw;
+ np = (const u_char *)elem.data.raw;
/* msgAuthoritativeEngineID (OCTET STRING) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_STR) {
- fputs("[msgAuthoritativeEngineID!=STR]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[msgAuthoritativeEngineID!=STR]");
+ asn1_print(ndo, &elem);
return;
}
length -= count;
np += count;
/* msgAuthoritativeEngineBoots (INTEGER) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_INT) {
- fputs("[msgAuthoritativeEngineBoots!=INT]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[msgAuthoritativeEngineBoots!=INT]");
+ asn1_print(ndo, &elem);
return;
}
- if (vflag)
- printf("B=%d ", elem.data.integer);
+ if (ndo->ndo_vflag)
+ ND_PRINT("B=%d ", elem.data.integer);
length -= count;
np += count;
/* msgAuthoritativeEngineTime (INTEGER) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_INT) {
- fputs("[msgAuthoritativeEngineTime!=INT]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[msgAuthoritativeEngineTime!=INT]");
+ asn1_print(ndo, &elem);
return;
}
- if (vflag)
- printf("T=%d ", elem.data.integer);
+ if (ndo->ndo_vflag)
+ ND_PRINT("T=%d ", elem.data.integer);
length -= count;
np += count;
/* msgUserName (OCTET STRING) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_STR) {
- fputs("[msgUserName!=STR]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[msgUserName!=STR]");
+ asn1_print(ndo, &elem);
return;
}
length -= count;
np += count;
- printf("U=%.*s ", (int)elem.asnlen, elem.data.str);
+ ND_PRINT("U=");
+ if (asn1_print_string(ndo, &elem) == -1)
+ return;
+ ND_PRINT(" ");
/* msgAuthenticationParameters (OCTET STRING) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_STR) {
- fputs("[msgAuthenticationParameters!=STR]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[msgAuthenticationParameters!=STR]");
+ asn1_print(ndo, &elem);
return;
}
length -= count;
np += count;
/* msgPrivacyParameters (OCTET STRING) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_STR) {
- fputs("[msgPrivacyParameters!=STR]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[msgPrivacyParameters!=STR]");
+ asn1_print(ndo, &elem);
return;
}
length -= count;
np += count;
if ((u_int)count < length)
- printf("[%d extra after usm SEQ]", length - count);
+ ND_PRINT("[%d extra after usm SEQ]", length - count);
}
/*
* Decode SNMPv3 Message Header (SNMPv3)
*/
static void
-v3msg_print(const u_char *np, u_int length)
+v3msg_print(netdissect_options *ndo,
+ const u_char *np, u_int length)
{
struct be elem;
int count = 0;
int xlength = length;
/* Sequence */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_SEQ) {
- fputs("[!message]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[!message]");
+ asn1_print(ndo, &elem);
return;
}
length = elem.asnlen;
- np = (u_char *)elem.data.raw;
+ np = (const u_char *)elem.data.raw;
- if (vflag) {
- fputs("{ ", stdout);
+ if (ndo->ndo_vflag) {
+ ND_PRINT("{ ");
}
/* msgID (INTEGER) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_INT) {
- fputs("[msgID!=INT]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[msgID!=INT]");
+ asn1_print(ndo, &elem);
return;
}
length -= count;
np += count;
/* msgMaxSize (INTEGER) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_INT) {
- fputs("[msgMaxSize!=INT]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[msgMaxSize!=INT]");
+ asn1_print(ndo, &elem);
return;
}
length -= count;
np += count;
/* msgFlags (OCTET STRING) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_STR) {
- fputs("[msgFlags!=STR]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[msgFlags!=STR]");
+ asn1_print(ndo, &elem);
return;
}
if (elem.asnlen != 1) {
- printf("[msgFlags size %d]", elem.asnlen);
+ ND_PRINT("[msgFlags size %d]", elem.asnlen);
return;
}
- flags = elem.data.str[0];
+ flags = GET_U_1(elem.data.str);
if (flags != 0x00 && flags != 0x01 && flags != 0x03
&& flags != 0x04 && flags != 0x05 && flags != 0x07) {
- printf("[msgFlags=0x%02X]", flags);
+ ND_PRINT("[msgFlags=0x%02X]", flags);
return;
}
length -= count;
np += count;
- fputs("F=", stdout);
- if (flags & 0x01) fputs("a", stdout);
- if (flags & 0x02) fputs("p", stdout);
- if (flags & 0x04) fputs("r", stdout);
- fputs(" ", stdout);
+ ND_PRINT("F=%s%s%s ",
+ flags & 0x01 ? "a" : "",
+ flags & 0x02 ? "p" : "",
+ flags & 0x04 ? "r" : "");
/* msgSecurityModel (INTEGER) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_INT) {
- fputs("[msgSecurityModel!=INT]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[msgSecurityModel!=INT]");
+ asn1_print(ndo, &elem);
return;
}
model = elem.data.integer;
np += count;
if ((u_int)count < length)
- printf("[%d extra after message SEQ]", length - count);
+ ND_PRINT("[%d extra after message SEQ]", length - count);
- if (vflag) {
- fputs("} ", stdout);
+ if (ndo->ndo_vflag) {
+ ND_PRINT("} ");
}
if (model == 3) {
- if (vflag) {
- fputs("{ USM ", stdout);
+ if (ndo->ndo_vflag) {
+ ND_PRINT("{ USM ");
}
} else {
- printf("[security model %d]", model);
+ ND_PRINT("[security model %d]", model);
return;
}
length = xlength - (np - xnp);
/* msgSecurityParameters (OCTET STRING) */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_STR) {
- fputs("[msgSecurityParameters!=STR]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[msgSecurityParameters!=STR]");
+ asn1_print(ndo, &elem);
return;
}
length -= count;
np += count;
if (model == 3) {
- usm_print(elem.data.str, elem.asnlen);
- if (vflag) {
- fputs("} ", stdout);
+ usm_print(ndo, elem.data.str, elem.asnlen);
+ if (ndo->ndo_vflag) {
+ ND_PRINT("} ");
}
}
- if (vflag) {
- fputs("{ ScopedPDU ", stdout);
+ if (ndo->ndo_vflag) {
+ ND_PRINT("{ ScopedPDU ");
}
- scopedpdu_print(np, length, 3);
+ scopedpdu_print(ndo, np, length, 3);
- if (vflag) {
- fputs("} ", stdout);
+ if (ndo->ndo_vflag) {
+ ND_PRINT("} ");
}
}
* Decode SNMP header and pass on to PDU printing routines
*/
void
-snmp_print(const u_char *np, u_int length)
+snmp_print(netdissect_options *ndo,
+ const u_char *np, u_int length)
{
struct be elem;
int count = 0;
int version = 0;
- putchar(' ');
+ ndo->ndo_protocol = "snmp";
+ ND_PRINT(" ");
/* initial Sequence */
- if ((count = asn1_parse(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_SEQ) {
- fputs("[!init SEQ]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[!init SEQ]");
+ asn1_print(ndo, &elem);
return;
}
if ((u_int)count < length)
- printf("[%d extra after iSEQ]", length - count);
+ ND_PRINT("[%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(np, length, &elem)) < 0)
+ if ((count = asn1_parse(ndo, np, length, &elem)) < 0)
return;
if (elem.type != BE_INT) {
- fputs("[version!=INT]", stdout);
- asn1_print(&elem);
+ ND_PRINT("[version!=INT]");
+ asn1_print(ndo, &elem);
return;
}
case SNMP_VERSION_1:
case SNMP_VERSION_2:
case SNMP_VERSION_3:
- if (vflag)
- printf("{ %s ", SnmpVersion[elem.data.integer]);
+ if (ndo->ndo_vflag)
+ ND_PRINT("{ %s ", SnmpVersion[elem.data.integer]);
break;
default:
- printf("[version = %d]", elem.data.integer);
+ ND_PRINT("SNMP [version = %d]", elem.data.integer);
return;
}
version = elem.data.integer;
switch (version) {
case SNMP_VERSION_1:
case SNMP_VERSION_2:
- community_print(np, length, version);
+ community_print(ndo, np, length, version);
break;
case SNMP_VERSION_3:
- v3msg_print(np, length);
+ v3msg_print(ndo, np, length);
break;
default:
- printf("[version = %d]", elem.data.integer);
+ ND_PRINT("[version = %d]", elem.data.integer);
break;
}
- if (vflag) {
- fputs("} ", stdout);
+ if (ndo->ndo_vflag) {
+ ND_PRINT("} ");
}
}
projects / tcpdump / blobdiff