/* \summary: Home Networking Control Protocol (HNCP) printer */
-#ifdef HAVE_CONFIG_H
#include <config.h>
-#endif
#include "netdissect-stdinc.h"
-#include <stdlib.h>
#include <string.h>
#include "netdissect.h"
}
static const char *
-format_nid(const u_char *data)
+format_nid(netdissect_options *ndo, const u_char *data)
{
static char buf[4][sizeof("01:01:01:01")];
static int i = 0;
i = (i + 1) % 4;
- nd_snprintf(buf[i], sizeof(buf[i]), "%02x:%02x:%02x:%02x",
- EXTRACT_U_1(data), EXTRACT_U_1(data + 1), EXTRACT_U_1(data + 2),
- EXTRACT_U_1(data + 3));
+ snprintf(buf[i], sizeof(buf[i]), "%02x:%02x:%02x:%02x",
+ GET_U_1(data), GET_U_1(data + 1), GET_U_1(data + 2),
+ GET_U_1(data + 3));
return buf[i];
}
static const char *
-format_256(const u_char *data)
+format_256(netdissect_options *ndo, const u_char *data)
{
static char buf[4][sizeof("0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")];
static int i = 0;
i = (i + 1) % 4;
- nd_snprintf(buf[i], sizeof(buf[i]), "%016" PRIx64 "%016" PRIx64 "%016" PRIx64 "%016" PRIx64,
- EXTRACT_BE_U_8(data),
- EXTRACT_BE_U_8(data + 8),
- EXTRACT_BE_U_8(data + 16),
- EXTRACT_BE_U_8(data + 24)
+ snprintf(buf[i], sizeof(buf[i]), "%016" PRIx64 "%016" PRIx64 "%016" PRIx64 "%016" PRIx64,
+ GET_BE_U_8(data),
+ GET_BE_U_8(data + 8),
+ GET_BE_U_8(data + 16),
+ GET_BE_U_8(data + 24)
);
return buf[i];
}
static char buf[4][sizeof("0000000.000s")];
static int i = 0;
i = (i + 1) % 4;
- nd_snprintf(buf[i], sizeof(buf[i]), "%u.%03us", n / 1000, n % 1000);
+ snprintf(buf[i], sizeof(buf[i]), "%u.%03us", n / 1000, n % 1000);
return buf[i];
}
format_ip6addr(netdissect_options *ndo, const u_char *cp)
{
if (is_ipv4_mapped_address(cp))
- return ipaddr_string(ndo, cp + IPV4_MAPPED_HEADING_LEN);
+ return GET_IPADDR_STRING(cp + IPV4_MAPPED_HEADING_LEN);
else
- return ip6addr_string(ndo, cp);
+ return GET_IP6ADDR_STRING(cp);
}
static int
int plenbytes;
char buf[sizeof("xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx::/128")];
- if (EXTRACT_U_1(prefix) >= 96 && max_length >= IPV4_MAPPED_HEADING_LEN + 1 &&
+ if (GET_U_1(prefix) >= 96 && max_length >= IPV4_MAPPED_HEADING_LEN + 1 &&
is_ipv4_mapped_address(prefix + 1)) {
- struct in_addr addr;
+ nd_ipv4 addr;
u_int plen;
- plen = EXTRACT_U_1(prefix) - 96;
+ plen = GET_U_1(prefix) - 96;
if (32 < plen)
return -1;
max_length -= 1;
((u_char *)&addr)[plenbytes - 1] &=
((0xff00 >> (plen % 8)) & 0xff);
}
- nd_snprintf(buf, sizeof(buf), "%s/%u", ipaddr_string(ndo, (const u_char *)&addr), plen);
+ snprintf(buf, sizeof(buf), "%s/%u", ipaddr_string(ndo, (const u_char *)&addr), plen); /* local buffer, not packet data; don't use GET_IPADDR_STRING() */
plenbytes += 1 + IPV4_MAPPED_HEADING_LEN;
} else {
plenbytes = decode_prefix6(ndo, prefix, max_length, buf, sizeof(buf));
+ if (plenbytes < 0)
+ return plenbytes;
}
ND_PRINT("%s", buf);
{
u_int length = 0;
while (length < max_length) {
- u_int lab_length = EXTRACT_U_1(cp + length);
+ u_int lab_length = GET_U_1(cp + length);
length++;
if (lab_length == 0)
return (int)length;
ND_PRINT(".");
if (length+lab_length > max_length) {
if (print)
- (void)nd_printzp(ndo, cp+length, max_length-length, NULL);
+ nd_printjnp(ndo, cp+length, max_length-length);
break;
}
if (print)
- (void)nd_printzp(ndo, cp+length, lab_length, NULL);
+ nd_printjnp(ndo, cp+length, lab_length);
length += lab_length;
}
if (print)
if (i + 2 > length)
return -1;
tlv = cp + i;
- type = EXTRACT_U_1(tlv);
- optlen = EXTRACT_U_1(tlv + 1);
+ type = GET_U_1(tlv);
+ optlen = GET_U_1(tlv + 1);
value = tlv + 2;
ND_PRINT("\n");
return -1;
}
for (t = 0; t < optlen; t += 4)
- ND_PRINT(" %s", ipaddr_string(ndo, value + t));
+ ND_PRINT(" %s", GET_IPADDR_STRING(value + t));
}
break;
case DH4OPT_DOMAIN_SEARCH: {
const u_char *tp = value;
while (tp < value + optlen) {
ND_PRINT(" ");
- if ((tp = ns_nprint(ndo, tp, value + optlen)) == NULL)
+ if ((tp = fqdn_print(ndo, tp, value + optlen)) == NULL)
return -1;
}
}
if (i + 4 > length)
return -1;
tlv = cp + i;
- type = EXTRACT_BE_U_2(tlv);
- optlen = EXTRACT_BE_U_2(tlv + 2);
+ type = GET_BE_U_2(tlv);
+ optlen = GET_BE_U_2(tlv + 2);
value = tlv + 4;
ND_PRINT("\n");
case DH6OPT_DNS_SERVERS:
case DH6OPT_SNTP_SERVERS: {
if (optlen % 16 != 0) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
return -1;
}
for (t = 0; t < optlen; t += 16)
- ND_PRINT(" %s", ip6addr_string(ndo, value + t));
+ ND_PRINT(" %s", GET_IP6ADDR_STRING(value + t));
}
break;
case DH6OPT_DOMAIN_LIST: {
const u_char *tp = value;
while (tp < value + optlen) {
ND_PRINT(" ");
- if ((tp = ns_nprint(ndo, tp, value + optlen)) == NULL)
+ if ((tp = fqdn_print(ndo, tp, value + optlen)) == NULL)
return -1;
}
}
if (i + 4 > length)
goto invalid;
- type = EXTRACT_BE_U_2(tlv);
- bodylen = EXTRACT_BE_U_2(tlv + 2);
+ type = GET_BE_U_2(tlv);
+ bodylen = GET_BE_U_2(tlv + 2);
value = tlv + 4;
ND_TCHECK_LEN(value, bodylen);
if (i + bodylen + 4 > length)
case DNCP_REQUEST_NETWORK_STATE: {
if (bodylen != 0)
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
}
break;
case DNCP_REQUEST_NODE_STATE: {
const char *node_identifier;
if (bodylen != 4) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
- node_identifier = format_nid(value);
+ node_identifier = format_nid(ndo, value);
ND_PRINT(" NID: %s", node_identifier);
}
break;
const char *node_identifier;
uint32_t endpoint_identifier;
if (bodylen != 8) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
- node_identifier = format_nid(value);
- endpoint_identifier = EXTRACT_BE_U_4(value + 4);
+ node_identifier = format_nid(ndo, value);
+ endpoint_identifier = GET_BE_U_4(value + 4);
ND_PRINT(" NID: %s EPID: %08x",
node_identifier,
endpoint_identifier
case DNCP_NETWORK_STATE: {
uint64_t hash;
if (bodylen != 8) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
- hash = EXTRACT_BE_U_8(value);
+ hash = GET_BE_U_8(value);
ND_PRINT(" hash: %016" PRIx64, hash);
}
break;
uint32_t sequence_number;
uint64_t hash;
if (bodylen < 20) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
- node_identifier = format_nid(value);
- sequence_number = EXTRACT_BE_U_4(value + 4);
- interval = format_interval(EXTRACT_BE_U_4(value + 8));
- hash = EXTRACT_BE_U_8(value + 12);
+ node_identifier = format_nid(ndo, value);
+ sequence_number = GET_BE_U_4(value + 4);
+ interval = format_interval(GET_BE_U_4(value + 8));
+ hash = GET_BE_U_8(value + 12);
ND_PRINT(" NID: %s seqno: %u %s hash: %016" PRIx64,
node_identifier,
sequence_number,
const char *peer_node_identifier;
uint32_t peer_endpoint_identifier, endpoint_identifier;
if (bodylen != 12) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
- peer_node_identifier = format_nid(value);
- peer_endpoint_identifier = EXTRACT_BE_U_4(value + 4);
- endpoint_identifier = EXTRACT_BE_U_4(value + 8);
+ peer_node_identifier = format_nid(ndo, value);
+ peer_endpoint_identifier = GET_BE_U_4(value + 4);
+ endpoint_identifier = GET_BE_U_4(value + 8);
ND_PRINT(" Peer-NID: %s Peer-EPID: %08x Local-EPID: %08x",
peer_node_identifier,
peer_endpoint_identifier,
uint32_t endpoint_identifier;
const char *interval;
if (bodylen < 8) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
- endpoint_identifier = EXTRACT_BE_U_4(value);
- interval = format_interval(EXTRACT_BE_U_4(value + 4));
+ endpoint_identifier = GET_BE_U_4(value);
+ interval = format_interval(GET_BE_U_4(value + 4));
ND_PRINT(" EPID: %08x Interval: %s",
endpoint_identifier,
interval
case DNCP_TRUST_VERDICT: {
if (bodylen <= 36) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
ND_PRINT(" Verdict: %u Fingerprint: %s Common Name: ",
- EXTRACT_U_1(value),
- format_256(value + 4));
- (void)nd_printzp(ndo, value + 36, bodylen - 36, NULL);
+ GET_U_1(value),
+ format_256(ndo, value + 4));
+ nd_printjnp(ndo, value + 36, bodylen - 36);
}
break;
uint16_t capabilities;
uint8_t M, P, H, L;
if (bodylen < 5) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
- capabilities = EXTRACT_BE_U_2(value + 2);
+ capabilities = GET_BE_U_2(value + 2);
M = (uint8_t)((capabilities >> 12) & 0xf);
P = (uint8_t)((capabilities >> 8) & 0xf);
H = (uint8_t)((capabilities >> 4) & 0xf);
ND_PRINT(" M: %u P: %u H: %u L: %u User-agent: ",
M, P, H, L
);
- (void)nd_printzp(ndo, value + 4, bodylen - 4, NULL);
+ nd_printjnp(ndo, value + 4, bodylen - 4);
}
break;
case HNCP_DELEGATED_PREFIX: {
int l;
- if (bodylen < 9 || bodylen < 9 + (EXTRACT_U_1(value + 8) + 7) / 8) {
- ND_PRINT(" %s", istr);
+ if (bodylen < 9 || bodylen < 9 + (GET_U_1(value + 8) + 7) / 8) {
+ nd_print_invalid(ndo);
break;
}
ND_PRINT(" VLSO: %s PLSO: %s Prefix: ",
- format_interval(EXTRACT_BE_U_4(value)),
- format_interval(EXTRACT_BE_U_4(value + 4))
+ format_interval(GET_BE_U_4(value)),
+ format_interval(GET_BE_U_4(value + 4))
);
l = print_prefix(ndo, value + 8, bodylen - 8);
if (l == -1) {
* IPv6", or -3, meaning "the prefix runs past
* the end of the TLV".
*/
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
l += 8 + (-l & 3);
uint8_t policy;
int l;
if (bodylen < 1) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
- policy = EXTRACT_U_1(value);
+ policy = GET_U_1(value);
ND_PRINT(" type: ");
if (policy == 0) {
if (bodylen != 1) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
ND_PRINT("Internet connectivity");
* IPv6", or -3, meaning "the prefix runs past
* the end of the TLV".
*/
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
} else if (policy == 129) {
print_dns_label(ndo, value+1, bodylen-1, 1);
} else if (policy == 130) {
ND_PRINT("Opaque UTF-8: ");
- (void)nd_printzp(ndo, value + 1, bodylen - 1, NULL);
+ nd_printjnp(ndo, value + 1, bodylen - 1);
} else if (policy == 131) {
if (bodylen != 1) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
ND_PRINT("Restrictive assignment");
case HNCP_DHCPV4_DATA: {
if (bodylen == 0) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
if (dhcpv4_print(ndo, value, bodylen, indent+1) != 0)
case HNCP_DHCPV6_DATA: {
if (bodylen == 0) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
if (dhcpv6_print(ndo, value, bodylen, indent+1) != 0) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
}
case HNCP_ASSIGNED_PREFIX: {
uint8_t prty;
int l;
- if (bodylen < 6 || bodylen < 6 + (EXTRACT_U_1(value + 5) + 7) / 8) {
- ND_PRINT(" %s", istr);
+ if (bodylen < 6 || bodylen < 6 + (GET_U_1(value + 5) + 7) / 8) {
+ nd_print_invalid(ndo);
break;
}
- prty = EXTRACT_U_1(value + 4) & 0xf;
+ prty = GET_U_1(value + 4) & 0xf;
ND_PRINT(" EPID: %08x Prty: %u",
- EXTRACT_BE_U_4(value),
+ GET_BE_U_4(value),
prty
);
ND_PRINT(" Prefix: ");
if ((l = print_prefix(ndo, value + 5, bodylen - 5)) < 0) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
l += 5;
uint32_t endpoint_identifier;
const char *ip_address;
if (bodylen < 20) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
- endpoint_identifier = EXTRACT_BE_U_4(value);
+ endpoint_identifier = GET_BE_U_4(value);
ip_address = format_ip6addr(ndo, value + 4);
ND_PRINT(" EPID: %08x IP Address: %s",
endpoint_identifier,
const char *ip_address;
int len;
if (bodylen < 17) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
ip_address = format_ip6addr(ndo, value);
ND_PRINT(" IP-Address: %s %c%c%c ",
ip_address,
- (EXTRACT_U_1(value + 16) & 4) ? 'l' : '-',
- (EXTRACT_U_1(value + 16) & 2) ? 'b' : '-',
- (EXTRACT_U_1(value + 16) & 1) ? 's' : '-'
+ (GET_U_1(value + 16) & 4) ? 'l' : '-',
+ (GET_U_1(value + 16) & 2) ? 'b' : '-',
+ (GET_U_1(value + 16) & 1) ? 's' : '-'
);
len = print_dns_label(ndo, value+17, bodylen-17, 1);
if (len < 0) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
len += 17;
case HNCP_DOMAIN_NAME: {
if (bodylen == 0) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
ND_PRINT(" Domain: ");
case HNCP_NODE_NAME: {
u_int l;
if (bodylen < 17) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
- l = EXTRACT_U_1(value + 16);
+ l = GET_U_1(value + 16);
if (bodylen < 17 + l) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
ND_PRINT(" IP-Address: %s Name: ",
);
if (l < 64) {
ND_PRINT("\"");
- (void)nd_printzp(ndo, value + 17, l, NULL);
+ nd_printjnp(ndo, value + 17, l);
ND_PRINT("\"");
} else {
- ND_PRINT("%s", istr);
+ nd_print_invalid(ndo);
}
l += 17;
- l += -l & 3;
+ l = roundup2(l, 4);
if (bodylen >= l)
hncp_print_rec(ndo, value + l, bodylen - l, indent+1);
}
case HNCP_MANAGED_PSK: {
if (bodylen < 32) {
- ND_PRINT(" %s", istr);
+ nd_print_invalid(ndo);
break;
}
- ND_PRINT(" PSK: %s", format_256(value));
+ ND_PRINT(" PSK: %s", format_256(ndo, value));
hncp_print_rec(ndo, value + 32, bodylen - 32, indent+1);
}
break;
}
skip_multiline:
- i += 4 + bodylen + (-bodylen & 3);
+ i += 4 + roundup2(bodylen, 4);
}
print_type_in_line(ndo, last_type_mask, last_type_count, indent, &first_one);
return;
invalid:
- ND_PRINT("%s", istr);
- return;
+ nd_print_invalid(ndo);
}
projects / tcpdump / blobdiff