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Differential D3007 Diff 6782 head/contrib/tcpdump/print-ahcp.c

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head/contrib/tcpdump/print-ahcp.c

Show First 20 Lines • Show All 94 Lines • ▼ Show 20 Linesstatic const struct tok ahcp1_opt_str[] = {
{ AHCP1_OPT_IPV6_PREFIX_DELEGATION, "IPv6 Prefix Delegation" }, { AHCP1_OPT_IPV6_PREFIX_DELEGATION, "IPv6 Prefix Delegation" },
{ AHCP1_OPT_IPV4_PREFIX_DELEGATION, "IPv4 Prefix Delegation" }, { AHCP1_OPT_IPV4_PREFIX_DELEGATION, "IPv4 Prefix Delegation" },
{ AHCP1_OPT_NAME_SERVER, "Name Server" }, { AHCP1_OPT_NAME_SERVER, "Name Server" },
{ AHCP1_OPT_NTP_SERVER, "NTP Server" }, { AHCP1_OPT_NTP_SERVER, "NTP Server" },
{ 0, NULL } { 0, NULL }
}; };
static int static int
ahcp_time_print(netdissect_options *ndo, const u_char *cp, const u_char *ep) { ahcp_time_print(netdissect_options *ndo, const u_char *cp, const u_char *ep)
{
time_t t; time_t t;
struct tm *tm; struct tm *tm;
char buf[BUFSIZE]; char buf[BUFSIZE];
if (cp + 4 != ep) if (cp + 4 != ep)
goto corrupt; goto corrupt;
ND_TCHECK2(*cp, 4); ND_TCHECK2(*cp, 4);
t = EXTRACT_32BITS(cp); t = EXTRACT_32BITS(cp);
Show All 10 Linescorrupt:
ND_TCHECK2(*cp, ep - cp); ND_TCHECK2(*cp, ep - cp);
return 0; return 0;
trunc: trunc:
ND_PRINT((ndo, "%s", tstr)); ND_PRINT((ndo, "%s", tstr));
return -1; return -1;
} }
static int static int
ahcp_seconds_print(netdissect_options *ndo, const u_char *cp, const u_char *ep) { ahcp_seconds_print(netdissect_options *ndo, const u_char *cp, const u_char *ep)
{
if (cp + 4 != ep) if (cp + 4 != ep)
goto corrupt; goto corrupt;
ND_TCHECK2(*cp, 4); ND_TCHECK2(*cp, 4);
ND_PRINT((ndo, ": %us", EXTRACT_32BITS(cp))); ND_PRINT((ndo, ": %us", EXTRACT_32BITS(cp)));
return 0; return 0;
corrupt: corrupt:
ND_PRINT((ndo, ": %s", cstr)); ND_PRINT((ndo, ": %s", cstr));
ND_TCHECK2(*cp, ep - cp); ND_TCHECK2(*cp, ep - cp);
return 0; return 0;
trunc: trunc:
ND_PRINT((ndo, "%s", tstr)); ND_PRINT((ndo, "%s", tstr));
return -1; return -1;
} }
static int static int
ahcp_ipv6_addresses_print(netdissect_options *ndo, const u_char *cp, const u_char *ep) { ahcp_ipv6_addresses_print(netdissect_options *ndo, const u_char *cp, const u_char *ep)
{
const char *sep = ": "; const char *sep = ": ";
while (cp < ep) { while (cp < ep) {
if (cp + 16 > ep) if (cp + 16 > ep)
goto corrupt; goto corrupt;
ND_TCHECK2(*cp, 16); ND_TCHECK2(*cp, 16);
#ifdef INET6 #ifdef INET6
ND_PRINT((ndo, "%s%s", sep, ip6addr_string(ndo, cp))); ND_PRINT((ndo, "%s%s", sep, ip6addr_string(ndo, cp)));
Show All 10 Linescorrupt:
ND_TCHECK2(*cp, ep - cp); ND_TCHECK2(*cp, ep - cp);
return 0; return 0;
trunc: trunc:
ND_PRINT((ndo, "%s", tstr)); ND_PRINT((ndo, "%s", tstr));
return -1; return -1;
} }
static int static int
ahcp_ipv4_addresses_print(netdissect_options *ndo, const u_char *cp, const u_char *ep) { ahcp_ipv4_addresses_print(netdissect_options *ndo, const u_char *cp, const u_char *ep)
{
const char *sep = ": "; const char *sep = ": ";
while (cp < ep) { while (cp < ep) {
if (cp + 4 > ep) if (cp + 4 > ep)
goto corrupt; goto corrupt;
ND_TCHECK2(*cp, 4); ND_TCHECK2(*cp, 4);
ND_PRINT((ndo, "%s%s", sep, ipaddr_string(ndo, cp))); ND_PRINT((ndo, "%s%s", sep, ipaddr_string(ndo, cp)));
cp += 4; cp += 4;
sep = ", "; sep = ", ";
} }
return 0; return 0;
corrupt: corrupt:
ND_PRINT((ndo, ": %s", cstr)); ND_PRINT((ndo, ": %s", cstr));
ND_TCHECK2(*cp, ep - cp); ND_TCHECK2(*cp, ep - cp);
return 0; return 0;
trunc: trunc:
ND_PRINT((ndo, "%s", tstr)); ND_PRINT((ndo, "%s", tstr));
return -1; return -1;
} }
static int static int
ahcp_ipv6_prefixes_print(netdissect_options *ndo, const u_char *cp, const u_char *ep) { ahcp_ipv6_prefixes_print(netdissect_options *ndo, const u_char *cp, const u_char *ep)
{
const char *sep = ": "; const char *sep = ": ";
while (cp < ep) { while (cp < ep) {
if (cp + 17 > ep) if (cp + 17 > ep)
goto corrupt; goto corrupt;
ND_TCHECK2(*cp, 17); ND_TCHECK2(*cp, 17);
#ifdef INET6 #ifdef INET6
ND_PRINT((ndo, "%s%s/%u", sep, ip6addr_string(ndo, cp), *(cp + 16))); ND_PRINT((ndo, "%s%s/%u", sep, ip6addr_string(ndo, cp), *(cp + 16)));
Show All 10 Linescorrupt:
ND_TCHECK2(*cp, ep - cp); ND_TCHECK2(*cp, ep - cp);
return 0; return 0;
trunc: trunc:
ND_PRINT((ndo, "%s", tstr)); ND_PRINT((ndo, "%s", tstr));
return -1; return -1;
} }
static int static int
ahcp_ipv4_prefixes_print(netdissect_options *ndo, const u_char *cp, const u_char *ep) { ahcp_ipv4_prefixes_print(netdissect_options *ndo, const u_char *cp, const u_char *ep)
{
const char *sep = ": "; const char *sep = ": ";
while (cp < ep) { while (cp < ep) {
if (cp + 5 > ep) if (cp + 5 > ep)
goto corrupt; goto corrupt;
ND_TCHECK2(*cp, 5); ND_TCHECK2(*cp, 5);
ND_PRINT((ndo, "%s%s/%u", sep, ipaddr_string(ndo, cp), *(cp + 4))); ND_PRINT((ndo, "%s%s/%u", sep, ipaddr_string(ndo, cp), *(cp + 4)));
cp += 5; cp += 5;
Show All 25 Lines(* const data_decoders[AHCP1_OPT_MAX + 1])(netdissect_options *, const u_char *, const u_char *) = {
/* [AHCP1_OPT_IPV4_ADDRESS] = */ ahcp_ipv4_addresses_print, /* [AHCP1_OPT_IPV4_ADDRESS] = */ ahcp_ipv4_addresses_print,
/* [AHCP1_OPT_IPV6_PREFIX_DELEGATION] = */ ahcp_ipv6_prefixes_print, /* [AHCP1_OPT_IPV6_PREFIX_DELEGATION] = */ ahcp_ipv6_prefixes_print,
/* [AHCP1_OPT_IPV4_PREFIX_DELEGATION] = */ ahcp_ipv4_prefixes_print, /* [AHCP1_OPT_IPV4_PREFIX_DELEGATION] = */ ahcp_ipv4_prefixes_print,
/* [AHCP1_OPT_NAME_SERVER] = */ ahcp_ipv6_addresses_print, /* [AHCP1_OPT_NAME_SERVER] = */ ahcp_ipv6_addresses_print,
/* [AHCP1_OPT_NTP_SERVER] = */ ahcp_ipv6_addresses_print, /* [AHCP1_OPT_NTP_SERVER] = */ ahcp_ipv6_addresses_print,
}; };
static void static void
ahcp1_options_print(netdissect_options *ndo, const u_char *cp, const u_char *ep) { ahcp1_options_print(netdissect_options *ndo, const u_char *cp, const u_char *ep)
{
uint8_t option_no, option_len; uint8_t option_no, option_len;
while (cp < ep) { while (cp < ep) {
/* Option no */ /* Option no */
ND_TCHECK2(*cp, 1); ND_TCHECK2(*cp, 1);
option_no = *cp; option_no = *cp;
cp += 1; cp += 1;
ND_PRINT((ndo, "\n\t %s", tok2str(ahcp1_opt_str, "Unknown-%u", option_no))); ND_PRINT((ndo, "\n\t %s", tok2str(ahcp1_opt_str, "Unknown-%u", option_no)));
Show All 23 Linescorrupt:
ND_PRINT((ndo, " %s", cstr)); ND_PRINT((ndo, " %s", cstr));
ND_TCHECK2(*cp, ep - cp); ND_TCHECK2(*cp, ep - cp);
return; return;
trunc: trunc:
ND_PRINT((ndo, "%s", tstr)); ND_PRINT((ndo, "%s", tstr));
} }
static void static void
ahcp1_body_print(netdissect_options *ndo, const u_char *cp, const u_char *ep) { ahcp1_body_print(netdissect_options *ndo, const u_char *cp, const u_char *ep)
{
uint8_t type, mbz; uint8_t type, mbz;
uint16_t body_len; uint16_t body_len;
if (cp + AHCP1_BODY_MIN_LEN > ep) if (cp + AHCP1_BODY_MIN_LEN > ep)
goto corrupt; goto corrupt;
/* Type */ /* Type */
ND_TCHECK2(*cp, 1); ND_TCHECK2(*cp, 1);
type = *cp; type = *cp;
Show All 27 Linescorrupt:
ND_PRINT((ndo, " %s", cstr)); ND_PRINT((ndo, " %s", cstr));
ND_TCHECK2(*cp, ep - cp); ND_TCHECK2(*cp, ep - cp);
return; return;
trunc: trunc:
ND_PRINT((ndo, "%s", tstr)); ND_PRINT((ndo, "%s", tstr));
} }
void void
ahcp_print(netdissect_options *ndo, const u_char *cp, const u_int len) { ahcp_print(netdissect_options *ndo, const u_char *cp, const u_int len)
{
const u_char *ep = cp + len; const u_char *ep = cp + len;
uint8_t version; uint8_t version;
ND_PRINT((ndo, "AHCP")); ND_PRINT((ndo, "AHCP"));
if (len < 2) if (len < 2)
goto corrupt; goto corrupt;
/* Magic */ /* Magic */
ND_TCHECK2(*cp, 1); ND_TCHECK2(*cp, 1);
▲ Show 20 Lines • Show All 46 Lines • ▼ Show 20 Lines
corrupt: corrupt:
ND_PRINT((ndo, " %s", cstr)); ND_PRINT((ndo, " %s", cstr));
ND_TCHECK2(*cp, ep - cp); ND_TCHECK2(*cp, ep - cp);
return; return;
trunc: trunc:
ND_PRINT((ndo, "%s", tstr)); ND_PRINT((ndo, "%s", tstr));
} }