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tcpdump/print-pgm.c
Francois-Xavier Le Bail 11d3a01319 Move the printer summaries from INSTALL.txt to each printer 
with the tag '\summary:' for greping.
Remark: Currently some printers have no summary line.

Moreover:
Summarize all printers with a single line in INSTALL.txt
2016-08-14 17:03:43 +02:00

785 lines
20 KiB
C
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/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code
* distributions retain the above copyright notice and this paragraph
* in its entirety, and (2) distributions including binary code include
* the above copyright notice and this paragraph in its entirety in
* the documentation or other materials provided with the distribution.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND
* WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
* LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
* Original code by Andy Heffernan (ahh@juniper.net)
*/
/* \summary: Pragmatic General Multicast (PGM) printer */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <netdissect-stdinc.h>
#include "netdissect.h"
#include "extract.h"
#include "addrtoname.h"
#include "addrtostr.h"
#include "ip.h"
#include "ip6.h"
#include "ipproto.h"
#include "af.h"
/*
* PGM header (RFC 3208)
*/
struct pgm_header {
uint16_t pgm_sport;
uint16_t pgm_dport;
uint8_t pgm_type;
uint8_t pgm_options;
uint16_t pgm_sum;
uint8_t pgm_gsid[6];
uint16_t pgm_length;
};
struct pgm_spm {
uint32_t pgms_seq;
uint32_t pgms_trailseq;
uint32_t pgms_leadseq;
uint16_t pgms_nla_afi;
uint16_t pgms_reserved;
/* ... uint8_t pgms_nla[0]; */
/* ... options */
};
struct pgm_nak {
uint32_t pgmn_seq;
uint16_t pgmn_source_afi;
uint16_t pgmn_reserved;
/* ... uint8_t pgmn_source[0]; */
/* ... uint16_t pgmn_group_afi */
/* ... uint16_t pgmn_reserved2; */
/* ... uint8_t pgmn_group[0]; */
/* ... options */
};
struct pgm_ack {
uint32_t pgma_rx_max_seq;
uint32_t pgma_bitmap;
/* ... options */
};
struct pgm_poll {
uint32_t pgmp_seq;
uint16_t pgmp_round;
uint16_t pgmp_reserved;
/* ... options */
};
struct pgm_polr {
uint32_t pgmp_seq;
uint16_t pgmp_round;
uint16_t pgmp_subtype;
uint16_t pgmp_nla_afi;
uint16_t pgmp_reserved;
/* ... uint8_t pgmp_nla[0]; */
/* ... options */
};
struct pgm_data {
uint32_t pgmd_seq;
uint32_t pgmd_trailseq;
/* ... options */
};
typedef enum _pgm_type {
PGM_SPM = 0, /* source path message */
PGM_POLL = 1, /* POLL Request */
PGM_POLR = 2, /* POLL Response */
PGM_ODATA = 4, /* original data */
PGM_RDATA = 5, /* repair data */
PGM_NAK = 8, /* NAK */
PGM_NULLNAK = 9, /* Null NAK */
PGM_NCF = 10, /* NAK Confirmation */
PGM_ACK = 11, /* ACK for congestion control */
PGM_SPMR = 12, /* SPM request */
PGM_MAX = 255
} pgm_type;
#define PGM_OPT_BIT_PRESENT 0x01
#define PGM_OPT_BIT_NETWORK 0x02
#define PGM_OPT_BIT_VAR_PKTLEN 0x40
#define PGM_OPT_BIT_PARITY 0x80
#define PGM_OPT_LENGTH 0x00
#define PGM_OPT_FRAGMENT 0x01
#define PGM_OPT_NAK_LIST 0x02
#define PGM_OPT_JOIN 0x03
#define PGM_OPT_NAK_BO_IVL 0x04
#define PGM_OPT_NAK_BO_RNG 0x05
#define PGM_OPT_REDIRECT 0x07
#define PGM_OPT_PARITY_PRM 0x08
#define PGM_OPT_PARITY_GRP 0x09
#define PGM_OPT_CURR_TGSIZE 0x0A
#define PGM_OPT_NBR_UNREACH 0x0B
#define PGM_OPT_PATH_NLA 0x0C
#define PGM_OPT_SYN 0x0D
#define PGM_OPT_FIN 0x0E
#define PGM_OPT_RST 0x0F
#define PGM_OPT_CR 0x10
#define PGM_OPT_CRQST 0x11
#define PGM_OPT_PGMCC_DATA 0x12
#define PGM_OPT_PGMCC_FEEDBACK 0x13
#define PGM_OPT_MASK 0x7f
#define PGM_OPT_END 0x80 /* end of options marker */
#define PGM_MIN_OPT_LEN 4
void
pgm_print(netdissect_options *ndo,
register const u_char *bp, register u_int length,
register const u_char *bp2)
{
register const struct pgm_header *pgm;
register const struct ip *ip;
register char ch;
uint16_t sport, dport;
u_int nla_afnum;
char nla_buf[INET6_ADDRSTRLEN];
register const struct ip6_hdr *ip6;
uint8_t opt_type, opt_len;
uint32_t seq, opts_len, len, offset;
pgm = (const struct pgm_header *)bp;
ip = (const struct ip *)bp2;
if (IP_V(ip) == 6)
ip6 = (const struct ip6_hdr *)bp2;
else
ip6 = NULL;
ch = '\0';
if (!ND_TTEST(pgm->pgm_dport)) {
if (ip6) {
ND_PRINT((ndo, "%s > %s: [|pgm]",
ip6addr_string(ndo, &ip6->ip6_src),
ip6addr_string(ndo, &ip6->ip6_dst)));
return;
} else {
ND_PRINT((ndo, "%s > %s: [|pgm]",
ipaddr_string(ndo, &ip->ip_src),
ipaddr_string(ndo, &ip->ip_dst)));
return;
}
}
sport = EXTRACT_16BITS(&pgm->pgm_sport);
dport = EXTRACT_16BITS(&pgm->pgm_dport);
if (ip6) {
if (ip6->ip6_nxt == IPPROTO_PGM) {
ND_PRINT((ndo, "%s.%s > %s.%s: ",
ip6addr_string(ndo, &ip6->ip6_src),
tcpport_string(ndo, sport),
ip6addr_string(ndo, &ip6->ip6_dst),
tcpport_string(ndo, dport)));
} else {
ND_PRINT((ndo, "%s > %s: ",
tcpport_string(ndo, sport), tcpport_string(ndo, dport)));
}
} else {
if (ip->ip_p == IPPROTO_PGM) {
ND_PRINT((ndo, "%s.%s > %s.%s: ",
ipaddr_string(ndo, &ip->ip_src),
tcpport_string(ndo, sport),
ipaddr_string(ndo, &ip->ip_dst),
tcpport_string(ndo, dport)));
} else {
ND_PRINT((ndo, "%s > %s: ",
tcpport_string(ndo, sport), tcpport_string(ndo, dport)));
}
}
ND_TCHECK(*pgm);
ND_PRINT((ndo, "PGM, length %u", EXTRACT_16BITS(&pgm->pgm_length)));
if (!ndo->ndo_vflag)
return;
ND_PRINT((ndo, " 0x%02x%02x%02x%02x%02x%02x ",
pgm->pgm_gsid[0],
pgm->pgm_gsid[1],
pgm->pgm_gsid[2],
pgm->pgm_gsid[3],
pgm->pgm_gsid[4],
pgm->pgm_gsid[5]));
switch (pgm->pgm_type) {
case PGM_SPM: {
const struct pgm_spm *spm;
spm = (const struct pgm_spm *)(pgm + 1);
ND_TCHECK(*spm);
bp = (const u_char *) (spm + 1);
switch (EXTRACT_16BITS(&spm->pgms_nla_afi)) {
case AFNUM_INET:
ND_TCHECK2(*bp, sizeof(struct in_addr));
addrtostr(bp, nla_buf, sizeof(nla_buf));
bp += sizeof(struct in_addr);
break;
case AFNUM_INET6:
ND_TCHECK2(*bp, sizeof(struct in6_addr));
addrtostr6(bp, nla_buf, sizeof(nla_buf));
bp += sizeof(struct in6_addr);
break;
default:
goto trunc;
break;
}
ND_PRINT((ndo, "SPM seq %u trail %u lead %u nla %s",
EXTRACT_32BITS(&spm->pgms_seq),
EXTRACT_32BITS(&spm->pgms_trailseq),
EXTRACT_32BITS(&spm->pgms_leadseq),
nla_buf));
break;
}
case PGM_POLL: {
const struct pgm_poll *poll_msg;
poll_msg = (const struct pgm_poll *)(pgm + 1);
ND_TCHECK(*poll_msg);
ND_PRINT((ndo, "POLL seq %u round %u",
EXTRACT_32BITS(&poll_msg->pgmp_seq),
EXTRACT_16BITS(&poll_msg->pgmp_round)));
bp = (const u_char *) (poll_msg + 1);
break;
}
case PGM_POLR: {
const struct pgm_polr *polr;
uint32_t ivl, rnd, mask;
polr = (const struct pgm_polr *)(pgm + 1);
ND_TCHECK(*polr);
bp = (const u_char *) (polr + 1);
switch (EXTRACT_16BITS(&polr->pgmp_nla_afi)) {
case AFNUM_INET:
ND_TCHECK2(*bp, sizeof(struct in_addr));
addrtostr(bp, nla_buf, sizeof(nla_buf));
bp += sizeof(struct in_addr);
break;
case AFNUM_INET6:
ND_TCHECK2(*bp, sizeof(struct in6_addr));
addrtostr6(bp, nla_buf, sizeof(nla_buf));
bp += sizeof(struct in6_addr);
break;
default:
goto trunc;
break;
}
ND_TCHECK2(*bp, sizeof(uint32_t));
ivl = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
ND_TCHECK2(*bp, sizeof(uint32_t));
rnd = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
ND_TCHECK2(*bp, sizeof(uint32_t));
mask = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
ND_PRINT((ndo, "POLR seq %u round %u nla %s ivl %u rnd 0x%08x "
"mask 0x%08x", EXTRACT_32BITS(&polr->pgmp_seq),
EXTRACT_16BITS(&polr->pgmp_round), nla_buf, ivl, rnd, mask));
break;
}
case PGM_ODATA: {
const struct pgm_data *odata;
odata = (const struct pgm_data *)(pgm + 1);
ND_TCHECK(*odata);
ND_PRINT((ndo, "ODATA trail %u seq %u",
EXTRACT_32BITS(&odata->pgmd_trailseq),
EXTRACT_32BITS(&odata->pgmd_seq)));
bp = (const u_char *) (odata + 1);
break;
}
case PGM_RDATA: {
const struct pgm_data *rdata;
rdata = (const struct pgm_data *)(pgm + 1);
ND_TCHECK(*rdata);
ND_PRINT((ndo, "RDATA trail %u seq %u",
EXTRACT_32BITS(&rdata->pgmd_trailseq),
EXTRACT_32BITS(&rdata->pgmd_seq)));
bp = (const u_char *) (rdata + 1);
break;
}
case PGM_NAK:
case PGM_NULLNAK:
case PGM_NCF: {
const struct pgm_nak *nak;
char source_buf[INET6_ADDRSTRLEN], group_buf[INET6_ADDRSTRLEN];
nak = (const struct pgm_nak *)(pgm + 1);
ND_TCHECK(*nak);
bp = (const u_char *) (nak + 1);
/*
* Skip past the source, saving info along the way
* and stopping if we don't have enough.
*/
switch (EXTRACT_16BITS(&nak->pgmn_source_afi)) {
case AFNUM_INET:
ND_TCHECK2(*bp, sizeof(struct in_addr));
addrtostr(bp, source_buf, sizeof(source_buf));
bp += sizeof(struct in_addr);
break;
case AFNUM_INET6:
ND_TCHECK2(*bp, sizeof(struct in6_addr));
addrtostr6(bp, source_buf, sizeof(source_buf));
bp += sizeof(struct in6_addr);
break;
default:
goto trunc;
break;
}
/*
* Skip past the group, saving info along the way
* and stopping if we don't have enough.
*/
bp += (2 * sizeof(uint16_t));
switch (EXTRACT_16BITS(bp)) {
case AFNUM_INET:
ND_TCHECK2(*bp, sizeof(struct in_addr));
addrtostr(bp, group_buf, sizeof(group_buf));
bp += sizeof(struct in_addr);
break;
case AFNUM_INET6:
ND_TCHECK2(*bp, sizeof(struct in6_addr));
addrtostr6(bp, group_buf, sizeof(group_buf));
bp += sizeof(struct in6_addr);
break;
default:
goto trunc;
break;
}
/*
* Options decoding can go here.
*/
switch (pgm->pgm_type) {
case PGM_NAK:
ND_PRINT((ndo, "NAK "));
break;
case PGM_NULLNAK:
ND_PRINT((ndo, "NNAK "));
break;
case PGM_NCF:
ND_PRINT((ndo, "NCF "));
break;
default:
break;
}
ND_PRINT((ndo, "(%s -> %s), seq %u",
source_buf, group_buf, EXTRACT_32BITS(&nak->pgmn_seq)));
break;
}
case PGM_ACK: {
const struct pgm_ack *ack;
ack = (const struct pgm_ack *)(pgm + 1);
ND_TCHECK(*ack);
ND_PRINT((ndo, "ACK seq %u",
EXTRACT_32BITS(&ack->pgma_rx_max_seq)));
bp = (const u_char *) (ack + 1);
break;
}
case PGM_SPMR:
ND_PRINT((ndo, "SPMR"));
break;
default:
ND_PRINT((ndo, "UNKNOWN type 0x%02x", pgm->pgm_type));
break;
}
if (pgm->pgm_options & PGM_OPT_BIT_PRESENT) {
/*
* make sure there's enough for the first option header
*/
if (!ND_TTEST2(*bp, PGM_MIN_OPT_LEN)) {
ND_PRINT((ndo, "[|OPT]"));
return;
}
/*
* That option header MUST be an OPT_LENGTH option
* (see the first paragraph of section 9.1 in RFC 3208).
*/
opt_type = *bp++;
if ((opt_type & PGM_OPT_MASK) != PGM_OPT_LENGTH) {
ND_PRINT((ndo, "[First option bad, should be PGM_OPT_LENGTH, is %u]", opt_type & PGM_OPT_MASK));
return;
}
opt_len = *bp++;
if (opt_len != 4) {
ND_PRINT((ndo, "[Bad OPT_LENGTH option, length %u != 4]", opt_len));
return;
}
opts_len = EXTRACT_16BITS(bp);
if (opts_len < 4) {
ND_PRINT((ndo, "[Bad total option length %u < 4]", opts_len));
return;
}
bp += sizeof(uint16_t);
ND_PRINT((ndo, " OPTS LEN %d", opts_len));
opts_len -= 4;
while (opts_len) {
if (opts_len < PGM_MIN_OPT_LEN) {
ND_PRINT((ndo, "[Total option length leaves no room for final option]"));
return;
}
opt_type = *bp++;
opt_len = *bp++;
if (opt_len < PGM_MIN_OPT_LEN) {
ND_PRINT((ndo, "[Bad option, length %u < %u]", opt_len,
PGM_MIN_OPT_LEN));
break;
}
if (opts_len < opt_len) {
ND_PRINT((ndo, "[Total option length leaves no room for final option]"));
return;
}
if (!ND_TTEST2(*bp, opt_len - 2)) {
ND_PRINT((ndo, " [|OPT]"));
return;
}
switch (opt_type & PGM_OPT_MASK) {
case PGM_OPT_LENGTH:
if (opt_len != 4) {
ND_PRINT((ndo, "[Bad OPT_LENGTH option, length %u != 4]", opt_len));
return;
}
ND_PRINT((ndo, " OPTS LEN (extra?) %d", EXTRACT_16BITS(bp)));
bp += sizeof(uint16_t);
opts_len -= 4;
break;
case PGM_OPT_FRAGMENT:
if (opt_len != 16) {
ND_PRINT((ndo, "[Bad OPT_FRAGMENT option, length %u != 16]", opt_len));
return;
}
bp += 2;
seq = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
offset = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
len = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
ND_PRINT((ndo, " FRAG seq %u off %u len %u", seq, offset, len));
opts_len -= 16;
break;
case PGM_OPT_NAK_LIST:
bp += 2;
opt_len -= sizeof(uint32_t); /* option header */
ND_PRINT((ndo, " NAK LIST"));
while (opt_len) {
if (opt_len < sizeof(uint32_t)) {
ND_PRINT((ndo, "[Option length not a multiple of 4]"));
return;
}
ND_TCHECK2(*bp, sizeof(uint32_t));
ND_PRINT((ndo, " %u", EXTRACT_32BITS(bp)));
bp += sizeof(uint32_t);
opt_len -= sizeof(uint32_t);
opts_len -= sizeof(uint32_t);
}
break;
case PGM_OPT_JOIN:
if (opt_len != 8) {
ND_PRINT((ndo, "[Bad OPT_JOIN option, length %u != 8]", opt_len));
return;
}
bp += 2;
seq = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
ND_PRINT((ndo, " JOIN %u", seq));
opts_len -= 8;
break;
case PGM_OPT_NAK_BO_IVL:
if (opt_len != 12) {
ND_PRINT((ndo, "[Bad OPT_NAK_BO_IVL option, length %u != 12]", opt_len));
return;
}
bp += 2;
offset = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
seq = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
ND_PRINT((ndo, " BACKOFF ivl %u ivlseq %u", offset, seq));
opts_len -= 12;
break;
case PGM_OPT_NAK_BO_RNG:
if (opt_len != 12) {
ND_PRINT((ndo, "[Bad OPT_NAK_BO_RNG option, length %u != 12]", opt_len));
return;
}
bp += 2;
offset = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
seq = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
ND_PRINT((ndo, " BACKOFF max %u min %u", offset, seq));
opts_len -= 12;
break;
case PGM_OPT_REDIRECT:
bp += 2;
nla_afnum = EXTRACT_16BITS(bp);
bp += (2 * sizeof(uint16_t));
switch (nla_afnum) {
case AFNUM_INET:
if (opt_len != 4 + sizeof(struct in_addr)) {
ND_PRINT((ndo, "[Bad OPT_REDIRECT option, length %u != 4 + address size]", opt_len));
return;
}
ND_TCHECK2(*bp, sizeof(struct in_addr));
addrtostr(bp, nla_buf, sizeof(nla_buf));
bp += sizeof(struct in_addr);
opts_len -= 4 + sizeof(struct in_addr);
break;
case AFNUM_INET6:
if (opt_len != 4 + sizeof(struct in6_addr)) {
ND_PRINT((ndo, "[Bad OPT_REDIRECT option, length %u != 4 + address size]", opt_len));
return;
}
ND_TCHECK2(*bp, sizeof(struct in6_addr));
addrtostr6(bp, nla_buf, sizeof(nla_buf));
bp += sizeof(struct in6_addr);
opts_len -= 4 + sizeof(struct in6_addr);
break;
default:
goto trunc;
break;
}
ND_PRINT((ndo, " REDIRECT %s", nla_buf));
break;
case PGM_OPT_PARITY_PRM:
if (opt_len != 8) {
ND_PRINT((ndo, "[Bad OPT_PARITY_PRM option, length %u != 8]", opt_len));
return;
}
bp += 2;
len = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
ND_PRINT((ndo, " PARITY MAXTGS %u", len));
opts_len -= 8;
break;
case PGM_OPT_PARITY_GRP:
if (opt_len != 8) {
ND_PRINT((ndo, "[Bad OPT_PARITY_GRP option, length %u != 8]", opt_len));
return;
}
bp += 2;
seq = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
ND_PRINT((ndo, " PARITY GROUP %u", seq));
opts_len -= 8;
break;
case PGM_OPT_CURR_TGSIZE:
if (opt_len != 8) {
ND_PRINT((ndo, "[Bad OPT_CURR_TGSIZE option, length %u != 8]", opt_len));
return;
}
bp += 2;
len = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
ND_PRINT((ndo, " PARITY ATGS %u", len));
opts_len -= 8;
break;
case PGM_OPT_NBR_UNREACH:
if (opt_len != 4) {
ND_PRINT((ndo, "[Bad OPT_NBR_UNREACH option, length %u != 4]", opt_len));
return;
}
bp += 2;
ND_PRINT((ndo, " NBR_UNREACH"));
opts_len -= 4;
break;
case PGM_OPT_PATH_NLA:
ND_PRINT((ndo, " PATH_NLA [%d]", opt_len));
bp += opt_len;
opts_len -= opt_len;
break;
case PGM_OPT_SYN:
if (opt_len != 4) {
ND_PRINT((ndo, "[Bad OPT_SYN option, length %u != 4]", opt_len));
return;
}
bp += 2;
ND_PRINT((ndo, " SYN"));
opts_len -= 4;
break;
case PGM_OPT_FIN:
if (opt_len != 4) {
ND_PRINT((ndo, "[Bad OPT_FIN option, length %u != 4]", opt_len));
return;
}
bp += 2;
ND_PRINT((ndo, " FIN"));
opts_len -= 4;
break;
case PGM_OPT_RST:
if (opt_len != 4) {
ND_PRINT((ndo, "[Bad OPT_RST option, length %u != 4]", opt_len));
return;
}
bp += 2;
ND_PRINT((ndo, " RST"));
opts_len -= 4;
break;
case PGM_OPT_CR:
ND_PRINT((ndo, " CR"));
bp += opt_len;
opts_len -= opt_len;
break;
case PGM_OPT_CRQST:
if (opt_len != 4) {
ND_PRINT((ndo, "[Bad OPT_CRQST option, length %u != 4]", opt_len));
return;
}
bp += 2;
ND_PRINT((ndo, " CRQST"));
opts_len -= 4;
break;
case PGM_OPT_PGMCC_DATA:
bp += 2;
offset = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
nla_afnum = EXTRACT_16BITS(bp);
bp += (2 * sizeof(uint16_t));
switch (nla_afnum) {
case AFNUM_INET:
if (opt_len != 12 + sizeof(struct in_addr)) {
ND_PRINT((ndo, "[Bad OPT_PGMCC_DATA option, length %u != 12 + address size]", opt_len));
return;
}
ND_TCHECK2(*bp, sizeof(struct in_addr));
addrtostr(bp, nla_buf, sizeof(nla_buf));
bp += sizeof(struct in_addr);
opts_len -= 12 + sizeof(struct in_addr);
break;
case AFNUM_INET6:
if (opt_len != 12 + sizeof(struct in6_addr)) {
ND_PRINT((ndo, "[Bad OPT_PGMCC_DATA option, length %u != 12 + address size]", opt_len));
return;
}
ND_TCHECK2(*bp, sizeof(struct in6_addr));
addrtostr6(bp, nla_buf, sizeof(nla_buf));
bp += sizeof(struct in6_addr);
opts_len -= 12 + sizeof(struct in6_addr);
break;
default:
goto trunc;
break;
}
ND_PRINT((ndo, " PGMCC DATA %u %s", offset, nla_buf));
break;
case PGM_OPT_PGMCC_FEEDBACK:
bp += 2;
offset = EXTRACT_32BITS(bp);
bp += sizeof(uint32_t);
nla_afnum = EXTRACT_16BITS(bp);
bp += (2 * sizeof(uint16_t));
switch (nla_afnum) {
case AFNUM_INET:
if (opt_len != 12 + sizeof(struct in_addr)) {
ND_PRINT((ndo, "[Bad OPT_PGMCC_DATA option, length %u != 12 + address size]", opt_len));
return;
}
ND_TCHECK2(*bp, sizeof(struct in_addr));
addrtostr(bp, nla_buf, sizeof(nla_buf));
bp += sizeof(struct in_addr);
opts_len -= 12 + sizeof(struct in_addr);
break;
case AFNUM_INET6:
if (opt_len != 12 + sizeof(struct in6_addr)) {
ND_PRINT((ndo, "[Bad OPT_PGMCC_DATA option, length %u != 12 + address size]", opt_len));
return;
}
ND_TCHECK2(*bp, sizeof(struct in6_addr));
addrtostr6(bp, nla_buf, sizeof(nla_buf));
bp += sizeof(struct in6_addr);
opts_len -= 12 + sizeof(struct in6_addr);
break;
default:
goto trunc;
break;
}
ND_PRINT((ndo, " PGMCC FEEDBACK %u %s", offset, nla_buf));
break;
default:
ND_PRINT((ndo, " OPT_%02X [%d] ", opt_type, opt_len));
bp += opt_len;
opts_len -= opt_len;
break;
}
if (opt_type & PGM_OPT_END)
break;
}
}
ND_PRINT((ndo, " [%u]", length));
if (ndo->ndo_packettype == PT_PGM_ZMTP1 &&
(pgm->pgm_type == PGM_ODATA || pgm->pgm_type == PGM_RDATA))
zmtp1_print_datagram(ndo, bp, EXTRACT_16BITS(&pgm->pgm_length));
return;
trunc:
ND_PRINT((ndo, "[|pgm]"));
if (ch != '\0')
ND_PRINT((ndo, ">"));
}
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