Adding upstream version 4.99.4.upstream/4.99.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 829 insertions, 0 deletions

diff --git a/print-pgm.c b/print-pgm.c
new file mode 100644
index 0000000..ccb0b46
--- /dev/null
+++ b/print-pgm.c
@@ -0,0 +1,829 @@
+/*
+ * 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 {
+    nd_uint16_t	pgm_sport;
+    nd_uint16_t	pgm_dport;
+    nd_uint8_t	pgm_type;
+    nd_uint8_t	pgm_options;
+    nd_uint16_t	pgm_sum;
+    nd_byte	pgm_gsid[6];
+    nd_uint16_t	pgm_length;
+};
+
+struct pgm_spm {
+    nd_uint32_t	pgms_seq;
+    nd_uint32_t	pgms_trailseq;
+    nd_uint32_t	pgms_leadseq;
+    nd_uint16_t	pgms_nla_afi;
+    nd_uint16_t	pgms_reserved;
+    /* ... uint8_t	pgms_nla[0]; */
+    /* ... options */
+};
+
+struct pgm_nak {
+    nd_uint32_t	pgmn_seq;
+    nd_uint16_t	pgmn_source_afi;
+    nd_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 {
+    nd_uint32_t	pgma_rx_max_seq;
+    nd_uint32_t	pgma_bitmap;
+    /* ... options */
+};
+
+struct pgm_poll {
+    nd_uint32_t	pgmp_seq;
+    nd_uint16_t	pgmp_round;
+    nd_uint16_t	pgmp_subtype;
+    nd_uint16_t	pgmp_nla_afi;
+    nd_uint16_t	pgmp_reserved;
+    /* ... uint8_t	pgmp_nla[0]; */
+    /* ... options */
+};
+
+struct pgm_polr {
+    nd_uint32_t	pgmp_seq;
+    nd_uint16_t	pgmp_round;
+    nd_uint16_t	pgmp_reserved;
+    /* ... options */
+};
+
+struct pgm_data {
+    nd_uint32_t	pgmd_seq;
+    nd_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,
+          const u_char *bp, u_int length,
+          const u_char *bp2)
+{
+	const struct pgm_header *pgm;
+	const struct ip *ip;
+	uint8_t pgm_type_val;
+	uint16_t sport, dport;
+	u_int nla_afnum;
+	char nla_buf[INET6_ADDRSTRLEN];
+	const struct ip6_hdr *ip6;
+	uint8_t opt_type, opt_len;
+	uint32_t seq, opts_len, len, offset;
+
+	ndo->ndo_protocol = "pgm";
+	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;
+	if (!ND_TTEST_2(pgm->pgm_dport)) {
+		if (ip6) {
+			ND_PRINT("%s > %s:",
+				GET_IP6ADDR_STRING(ip6->ip6_src),
+				GET_IP6ADDR_STRING(ip6->ip6_dst));
+		} else {
+			ND_PRINT("%s > %s:",
+				GET_IPADDR_STRING(ip->ip_src),
+				GET_IPADDR_STRING(ip->ip_dst));
+		}
+		nd_print_trunc(ndo);
+		return;
+	}
+
+	sport = GET_BE_U_2(pgm->pgm_sport);
+	dport = GET_BE_U_2(pgm->pgm_dport);
+
+	if (ip6) {
+		if (GET_U_1(ip6->ip6_nxt) == IPPROTO_PGM) {
+			ND_PRINT("%s.%s > %s.%s: ",
+				GET_IP6ADDR_STRING(ip6->ip6_src),
+				tcpport_string(ndo, sport),
+				GET_IP6ADDR_STRING(ip6->ip6_dst),
+				tcpport_string(ndo, dport));
+		} else {
+			ND_PRINT("%s > %s: ",
+				tcpport_string(ndo, sport), tcpport_string(ndo, dport));
+		}
+	} else {
+		if (GET_U_1(ip->ip_p) == IPPROTO_PGM) {
+			ND_PRINT("%s.%s > %s.%s: ",
+				GET_IPADDR_STRING(ip->ip_src),
+				tcpport_string(ndo, sport),
+				GET_IPADDR_STRING(ip->ip_dst),
+				tcpport_string(ndo, dport));
+		} else {
+			ND_PRINT("%s > %s: ",
+				tcpport_string(ndo, sport), tcpport_string(ndo, dport));
+		}
+	}
+
+	ND_TCHECK_SIZE(pgm);
+
+        ND_PRINT("PGM, length %u", GET_BE_U_2(pgm->pgm_length));
+
+        if (!ndo->ndo_vflag)
+            return;
+
+	pgm_type_val = GET_U_1(pgm->pgm_type);
+	ND_PRINT(" 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_type_val) {
+	case PGM_SPM: {
+	    const struct pgm_spm *spm;
+
+	    spm = (const struct pgm_spm *)(pgm + 1);
+	    ND_TCHECK_SIZE(spm);
+	    bp = (const u_char *) (spm + 1);
+
+	    switch (GET_BE_U_2(spm->pgms_nla_afi)) {
+	    case AFNUM_INET:
+		ND_TCHECK_LEN(bp, sizeof(nd_ipv4));
+		addrtostr(bp, nla_buf, sizeof(nla_buf));
+		bp += sizeof(nd_ipv4);
+		break;
+	    case AFNUM_INET6:
+		ND_TCHECK_LEN(bp, sizeof(nd_ipv6));
+		addrtostr6(bp, nla_buf, sizeof(nla_buf));
+		bp += sizeof(nd_ipv6);
+		break;
+	    default:
+		goto trunc;
+		break;
+	    }
+
+	    ND_PRINT("SPM seq %u trail %u lead %u nla %s",
+			 GET_BE_U_4(spm->pgms_seq),
+			 GET_BE_U_4(spm->pgms_trailseq),
+			 GET_BE_U_4(spm->pgms_leadseq),
+			 nla_buf);
+	    break;
+	}
+
+	case PGM_POLL: {
+	    const struct pgm_poll *pgm_poll;
+	    uint32_t ivl, rnd, mask;
+
+	    pgm_poll = (const struct pgm_poll *)(pgm + 1);
+	    ND_TCHECK_SIZE(pgm_poll);
+	    bp = (const u_char *) (pgm_poll + 1);
+
+	    switch (GET_BE_U_2(pgm_poll->pgmp_nla_afi)) {
+	    case AFNUM_INET:
+		ND_TCHECK_LEN(bp, sizeof(nd_ipv4));
+		addrtostr(bp, nla_buf, sizeof(nla_buf));
+		bp += sizeof(nd_ipv4);
+		break;
+	    case AFNUM_INET6:
+		ND_TCHECK_LEN(bp, sizeof(nd_ipv6));
+		addrtostr6(bp, nla_buf, sizeof(nla_buf));
+		bp += sizeof(nd_ipv6);
+		break;
+	    default:
+		goto trunc;
+		break;
+	    }
+
+	    ivl = GET_BE_U_4(bp);
+	    bp += sizeof(uint32_t);
+
+	    rnd = GET_BE_U_4(bp);
+	    bp += sizeof(uint32_t);
+
+	    mask = GET_BE_U_4(bp);
+	    bp += sizeof(uint32_t);
+
+	    ND_PRINT("POLL seq %u round %u nla %s ivl %u rnd 0x%08x "
+			 "mask 0x%08x", GET_BE_U_4(pgm_poll->pgmp_seq),
+			 GET_BE_U_2(pgm_poll->pgmp_round), nla_buf, ivl, rnd,
+			 mask);
+	    break;
+	}
+	case PGM_POLR: {
+	    const struct pgm_polr *polr_msg;
+
+	    polr_msg = (const struct pgm_polr *)(pgm + 1);
+	    ND_TCHECK_SIZE(polr_msg);
+	    ND_PRINT("POLR seq %u round %u",
+			 GET_BE_U_4(polr_msg->pgmp_seq),
+			 GET_BE_U_2(polr_msg->pgmp_round));
+	    bp = (const u_char *) (polr_msg + 1);
+	    break;
+	}
+	case PGM_ODATA: {
+	    const struct pgm_data *odata;
+
+	    odata = (const struct pgm_data *)(pgm + 1);
+	    ND_TCHECK_SIZE(odata);
+	    ND_PRINT("ODATA trail %u seq %u",
+			 GET_BE_U_4(odata->pgmd_trailseq),
+			 GET_BE_U_4(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_SIZE(rdata);
+	    ND_PRINT("RDATA trail %u seq %u",
+			 GET_BE_U_4(rdata->pgmd_trailseq),
+			 GET_BE_U_4(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_SIZE(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 (GET_BE_U_2(nak->pgmn_source_afi)) {
+	    case AFNUM_INET:
+		ND_TCHECK_LEN(bp, sizeof(nd_ipv4));
+		addrtostr(bp, source_buf, sizeof(source_buf));
+		bp += sizeof(nd_ipv4);
+		break;
+	    case AFNUM_INET6:
+		ND_TCHECK_LEN(bp, sizeof(nd_ipv6));
+		addrtostr6(bp, source_buf, sizeof(source_buf));
+		bp += sizeof(nd_ipv6);
+		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 (GET_BE_U_2(bp)) {
+	    case AFNUM_INET:
+		ND_TCHECK_LEN(bp, sizeof(nd_ipv4));
+		addrtostr(bp, group_buf, sizeof(group_buf));
+		bp += sizeof(nd_ipv4);
+		break;
+	    case AFNUM_INET6:
+		ND_TCHECK_LEN(bp, sizeof(nd_ipv6));
+		addrtostr6(bp, group_buf, sizeof(group_buf));
+		bp += sizeof(nd_ipv6);
+		break;
+	    default:
+		goto trunc;
+		break;
+	    }
+
+	    /*
+	     * Options decoding can go here.
+	     */
+	    switch (pgm_type_val) {
+		case PGM_NAK:
+		    ND_PRINT("NAK ");
+		    break;
+		case PGM_NULLNAK:
+		    ND_PRINT("NNAK ");
+		    break;
+		case PGM_NCF:
+		    ND_PRINT("NCF ");
+		    break;
+		default:
+                    break;
+	    }
+	    ND_PRINT("(%s -> %s), seq %u",
+			 source_buf, group_buf, GET_BE_U_4(nak->pgmn_seq));
+	    break;
+	}
+
+	case PGM_ACK: {
+	    const struct pgm_ack *ack;
+
+	    ack = (const struct pgm_ack *)(pgm + 1);
+	    ND_TCHECK_SIZE(ack);
+	    ND_PRINT("ACK seq %u",
+			 GET_BE_U_4(ack->pgma_rx_max_seq));
+	    bp = (const u_char *) (ack + 1);
+	    break;
+	}
+
+	case PGM_SPMR:
+	    ND_PRINT("SPMR");
+	    break;
+
+	default:
+	    ND_PRINT("UNKNOWN type 0x%02x", pgm_type_val);
+	    break;
+
+	}
+	if (GET_U_1(pgm->pgm_options) & PGM_OPT_BIT_PRESENT) {
+
+	    /*
+	     * make sure there's enough for the first option header
+	     */
+	    ND_TCHECK_LEN(bp, PGM_MIN_OPT_LEN);
+
+	    /*
+	     * That option header MUST be an OPT_LENGTH option
+	     * (see the first paragraph of section 9.1 in RFC 3208).
+	     */
+	    opt_type = GET_U_1(bp);
+	    bp++;
+	    if ((opt_type & PGM_OPT_MASK) != PGM_OPT_LENGTH) {
+		ND_PRINT("[First option bad, should be PGM_OPT_LENGTH, is %u]", opt_type & PGM_OPT_MASK);
+		return;
+	    }
+	    opt_len = GET_U_1(bp);
+	    bp++;
+	    if (opt_len != 4) {
+		ND_PRINT("[Bad OPT_LENGTH option, length %u != 4]", opt_len);
+		return;
+	    }
+	    opts_len = GET_BE_U_2(bp);
+	    bp += sizeof(uint16_t);
+	    if (opts_len < 4) {
+		ND_PRINT("[Bad total option length %u < 4]", opts_len);
+		return;
+	    }
+	    ND_PRINT(" OPTS LEN %u", opts_len);
+	    opts_len -= 4;
+
+	    while (opts_len) {
+		if (opts_len < PGM_MIN_OPT_LEN) {
+		    ND_PRINT("[Total option length leaves no room for final option]");
+		    return;
+		}
+		opt_type = GET_U_1(bp);
+		bp++;
+		opt_len = GET_U_1(bp);
+		bp++;
+		if (opt_len < PGM_MIN_OPT_LEN) {
+		    ND_PRINT("[Bad option, length %u < %u]", opt_len,
+		        PGM_MIN_OPT_LEN);
+		    break;
+		}
+		if (opts_len < opt_len) {
+		    ND_PRINT("[Total option length leaves no room for final option]");
+		    return;
+		}
+		ND_TCHECK_LEN(bp, opt_len - 2);
+
+		switch (opt_type & PGM_OPT_MASK) {
+		case PGM_OPT_LENGTH:
+#define PGM_OPT_LENGTH_LEN	(2+2)
+		    if (opt_len != PGM_OPT_LENGTH_LEN) {
+			ND_PRINT("[Bad OPT_LENGTH option, length %u != %u]",
+			    opt_len, PGM_OPT_LENGTH_LEN);
+			return;
+		    }
+		    ND_PRINT(" OPTS LEN (extra?) %u", GET_BE_U_2(bp));
+		    bp += 2;
+		    opts_len -= PGM_OPT_LENGTH_LEN;
+		    break;
+
+		case PGM_OPT_FRAGMENT:
+#define PGM_OPT_FRAGMENT_LEN	(2+2+4+4+4)
+		    if (opt_len != PGM_OPT_FRAGMENT_LEN) {
+			ND_PRINT("[Bad OPT_FRAGMENT option, length %u != %u]",
+			    opt_len, PGM_OPT_FRAGMENT_LEN);
+			return;
+		    }
+		    bp += 2;
+		    seq = GET_BE_U_4(bp);
+		    bp += 4;
+		    offset = GET_BE_U_4(bp);
+		    bp += 4;
+		    len = GET_BE_U_4(bp);
+		    bp += 4;
+		    ND_PRINT(" FRAG seq %u off %u len %u", seq, offset, len);
+		    opts_len -= PGM_OPT_FRAGMENT_LEN;
+		    break;
+
+		case PGM_OPT_NAK_LIST:
+		    bp += 2;
+		    opt_len -= 4;	/* option header */
+		    ND_PRINT(" NAK LIST");
+		    while (opt_len) {
+			if (opt_len < 4) {
+			    ND_PRINT("[Option length not a multiple of 4]");
+			    return;
+			}
+			ND_PRINT(" %u", GET_BE_U_4(bp));
+			bp += 4;
+			opt_len -= 4;
+			opts_len -= 4;
+		    }
+		    break;
+
+		case PGM_OPT_JOIN:
+#define PGM_OPT_JOIN_LEN	(2+2+4)
+		    if (opt_len != PGM_OPT_JOIN_LEN) {
+			ND_PRINT("[Bad OPT_JOIN option, length %u != %u]",
+			    opt_len, PGM_OPT_JOIN_LEN);
+			return;
+		    }
+		    bp += 2;
+		    seq = GET_BE_U_4(bp);
+		    bp += 4;
+		    ND_PRINT(" JOIN %u", seq);
+		    opts_len -= PGM_OPT_JOIN_LEN;
+		    break;
+
+		case PGM_OPT_NAK_BO_IVL:
+#define PGM_OPT_NAK_BO_IVL_LEN	(2+2+4+4)
+		    if (opt_len != PGM_OPT_NAK_BO_IVL_LEN) {
+			ND_PRINT("[Bad OPT_NAK_BO_IVL option, length %u != %u]",
+			    opt_len, PGM_OPT_NAK_BO_IVL_LEN);
+			return;
+		    }
+		    bp += 2;
+		    offset = GET_BE_U_4(bp);
+		    bp += 4;
+		    seq = GET_BE_U_4(bp);
+		    bp += 4;
+		    ND_PRINT(" BACKOFF ivl %u ivlseq %u", offset, seq);
+		    opts_len -= PGM_OPT_NAK_BO_IVL_LEN;
+		    break;
+
+		case PGM_OPT_NAK_BO_RNG:
+#define PGM_OPT_NAK_BO_RNG_LEN	(2+2+4+4)
+		    if (opt_len != PGM_OPT_NAK_BO_RNG_LEN) {
+			ND_PRINT("[Bad OPT_NAK_BO_RNG option, length %u != %u]",
+			    opt_len, PGM_OPT_NAK_BO_RNG_LEN);
+			return;
+		    }
+		    bp += 2;
+		    offset = GET_BE_U_4(bp);
+		    bp += 4;
+		    seq = GET_BE_U_4(bp);
+		    bp += 4;
+		    ND_PRINT(" BACKOFF max %u min %u", offset, seq);
+		    opts_len -= PGM_OPT_NAK_BO_RNG_LEN;
+		    break;
+
+		case PGM_OPT_REDIRECT:
+#define PGM_OPT_REDIRECT_FIXED_LEN	(2+2+2+2)
+		    if (opt_len < PGM_OPT_REDIRECT_FIXED_LEN) {
+			ND_PRINT("[Bad OPT_REDIRECT option, length %u < %u]",
+			    opt_len, PGM_OPT_REDIRECT_FIXED_LEN);
+			return;
+		    }
+		    bp += 2;
+		    nla_afnum = GET_BE_U_2(bp);
+		    bp += 2+2;
+		    switch (nla_afnum) {
+		    case AFNUM_INET:
+			if (opt_len != PGM_OPT_REDIRECT_FIXED_LEN + sizeof(nd_ipv4)) {
+			    ND_PRINT("[Bad OPT_REDIRECT option, length %u != %u + address size]",
+			        opt_len, PGM_OPT_REDIRECT_FIXED_LEN);
+			    return;
+			}
+			ND_TCHECK_LEN(bp, sizeof(nd_ipv4));
+			addrtostr(bp, nla_buf, sizeof(nla_buf));
+			bp += sizeof(nd_ipv4);
+			opts_len -= PGM_OPT_REDIRECT_FIXED_LEN + sizeof(nd_ipv4);
+			break;
+		    case AFNUM_INET6:
+			if (opt_len != PGM_OPT_REDIRECT_FIXED_LEN + sizeof(nd_ipv6)) {
+			    ND_PRINT("[Bad OPT_REDIRECT option, length %u != %u + address size]",
+			        opt_len, PGM_OPT_REDIRECT_FIXED_LEN);
+			    return;
+			}
+			ND_TCHECK_LEN(bp, sizeof(nd_ipv6));
+			addrtostr6(bp, nla_buf, sizeof(nla_buf));
+			bp += sizeof(nd_ipv6);
+			opts_len -= PGM_OPT_REDIRECT_FIXED_LEN + sizeof(nd_ipv6);
+			break;
+		    default:
+			goto trunc;
+			break;
+		    }
+
+		    ND_PRINT(" REDIRECT %s",  nla_buf);
+		    break;
+
+		case PGM_OPT_PARITY_PRM:
+#define PGM_OPT_PARITY_PRM_LEN	(2+2+4)
+		    if (opt_len != PGM_OPT_PARITY_PRM_LEN) {
+			ND_PRINT("[Bad OPT_PARITY_PRM option, length %u != %u]",
+			    opt_len, PGM_OPT_PARITY_PRM_LEN);
+			return;
+		    }
+		    bp += 2;
+		    len = GET_BE_U_4(bp);
+		    bp += 4;
+		    ND_PRINT(" PARITY MAXTGS %u", len);
+		    opts_len -= PGM_OPT_PARITY_PRM_LEN;
+		    break;
+
+		case PGM_OPT_PARITY_GRP:
+#define PGM_OPT_PARITY_GRP_LEN	(2+2+4)
+		    if (opt_len != PGM_OPT_PARITY_GRP_LEN) {
+			ND_PRINT("[Bad OPT_PARITY_GRP option, length %u != %u]",
+			    opt_len, PGM_OPT_PARITY_GRP_LEN);
+			return;
+		    }
+		    bp += 2;
+		    seq = GET_BE_U_4(bp);
+		    bp += 4;
+		    ND_PRINT(" PARITY GROUP %u", seq);
+		    opts_len -= PGM_OPT_PARITY_GRP_LEN;
+		    break;
+
+		case PGM_OPT_CURR_TGSIZE:
+#define PGM_OPT_CURR_TGSIZE_LEN	(2+2+4)
+		    if (opt_len != PGM_OPT_CURR_TGSIZE_LEN) {
+			ND_PRINT("[Bad OPT_CURR_TGSIZE option, length %u != %u]",
+			    opt_len, PGM_OPT_CURR_TGSIZE_LEN);
+			return;
+		    }
+		    bp += 2;
+		    len = GET_BE_U_4(bp);
+		    bp += 4;
+		    ND_PRINT(" PARITY ATGS %u", len);
+		    opts_len -= PGM_OPT_CURR_TGSIZE_LEN;
+		    break;
+
+		case PGM_OPT_NBR_UNREACH:
+#define PGM_OPT_NBR_UNREACH_LEN	(2+2)
+		    if (opt_len != PGM_OPT_NBR_UNREACH_LEN) {
+			ND_PRINT("[Bad OPT_NBR_UNREACH option, length %u != %u]",
+			    opt_len, PGM_OPT_NBR_UNREACH_LEN);
+			return;
+		    }
+		    bp += 2;
+		    ND_PRINT(" NBR_UNREACH");
+		    opts_len -= PGM_OPT_NBR_UNREACH_LEN;
+		    break;
+
+		case PGM_OPT_PATH_NLA:
+		    ND_PRINT(" PATH_NLA [%u]", opt_len);
+		    bp += opt_len;
+		    opts_len -= opt_len;
+		    break;
+
+		case PGM_OPT_SYN:
+#define PGM_OPT_SYN_LEN	(2+2)
+		    if (opt_len != PGM_OPT_SYN_LEN) {
+			ND_PRINT("[Bad OPT_SYN option, length %u != %u]",
+			    opt_len, PGM_OPT_SYN_LEN);
+			return;
+		    }
+		    bp += 2;
+		    ND_PRINT(" SYN");
+		    opts_len -= PGM_OPT_SYN_LEN;
+		    break;
+
+		case PGM_OPT_FIN:
+#define PGM_OPT_FIN_LEN	(2+2)
+		    if (opt_len != PGM_OPT_FIN_LEN) {
+			ND_PRINT("[Bad OPT_FIN option, length %u != %u]",
+			    opt_len, PGM_OPT_FIN_LEN);
+			return;
+		    }
+		    bp += 2;
+		    ND_PRINT(" FIN");
+		    opts_len -= PGM_OPT_FIN_LEN;
+		    break;
+
+		case PGM_OPT_RST:
+#define PGM_OPT_RST_LEN	(2+2)
+		    if (opt_len != PGM_OPT_RST_LEN) {
+			ND_PRINT("[Bad OPT_RST option, length %u != %u]",
+			    opt_len, PGM_OPT_RST_LEN);
+			return;
+		    }
+		    bp += 2;
+		    ND_PRINT(" RST");
+		    opts_len -= PGM_OPT_RST_LEN;
+		    break;
+
+		case PGM_OPT_CR:
+		    ND_PRINT(" CR");
+		    bp += opt_len;
+		    opts_len -= opt_len;
+		    break;
+
+		case PGM_OPT_CRQST:
+#define PGM_OPT_CRQST_LEN	(2+2)
+		    if (opt_len != PGM_OPT_CRQST_LEN) {
+			ND_PRINT("[Bad OPT_CRQST option, length %u != %u]",
+			    opt_len, PGM_OPT_CRQST_LEN);
+			return;
+		    }
+		    bp += 2;
+		    ND_PRINT(" CRQST");
+		    opts_len -= PGM_OPT_CRQST_LEN;
+		    break;
+
+		case PGM_OPT_PGMCC_DATA:
+#define PGM_OPT_PGMCC_DATA_FIXED_LEN	(2+2+4+2+2)
+		    if (opt_len < PGM_OPT_PGMCC_DATA_FIXED_LEN) {
+			ND_PRINT("[Bad OPT_PGMCC_DATA option, length %u < %u]",
+			    opt_len, PGM_OPT_PGMCC_DATA_FIXED_LEN);
+			return;
+		    }
+		    bp += 2;
+		    offset = GET_BE_U_4(bp);
+		    bp += 4;
+		    nla_afnum = GET_BE_U_2(bp);
+		    bp += 2+2;
+		    switch (nla_afnum) {
+		    case AFNUM_INET:
+			if (opt_len != PGM_OPT_PGMCC_DATA_FIXED_LEN + sizeof(nd_ipv4)) {
+			    ND_PRINT("[Bad OPT_PGMCC_DATA option, length %u != %u + address size]",
+			        opt_len, PGM_OPT_PGMCC_DATA_FIXED_LEN);
+			    return;
+			}
+			ND_TCHECK_LEN(bp, sizeof(nd_ipv4));
+			addrtostr(bp, nla_buf, sizeof(nla_buf));
+			bp += sizeof(nd_ipv4);
+			opts_len -= PGM_OPT_PGMCC_DATA_FIXED_LEN + sizeof(nd_ipv4);
+			break;
+		    case AFNUM_INET6:
+			if (opt_len != PGM_OPT_PGMCC_DATA_FIXED_LEN + sizeof(nd_ipv6)) {
+			    ND_PRINT("[Bad OPT_PGMCC_DATA option, length %u != %u + address size]",
+			        opt_len, PGM_OPT_PGMCC_DATA_FIXED_LEN);
+			    return;
+			}
+			ND_TCHECK_LEN(bp, sizeof(nd_ipv6));
+			addrtostr6(bp, nla_buf, sizeof(nla_buf));
+			bp += sizeof(nd_ipv6);
+			opts_len -= PGM_OPT_PGMCC_DATA_FIXED_LEN + sizeof(nd_ipv6);
+			break;
+		    default:
+			goto trunc;
+			break;
+		    }
+
+		    ND_PRINT(" PGMCC DATA %u %s", offset, nla_buf);
+		    break;
+
+		case PGM_OPT_PGMCC_FEEDBACK:
+#define PGM_OPT_PGMCC_FEEDBACK_FIXED_LEN	(2+2+4+2+2)
+		    if (opt_len < PGM_OPT_PGMCC_FEEDBACK_FIXED_LEN) {
+			ND_PRINT("[Bad PGM_OPT_PGMCC_FEEDBACK option, length %u < %u]",
+			    opt_len, PGM_OPT_PGMCC_FEEDBACK_FIXED_LEN);
+			return;
+		    }
+		    bp += 2;
+		    offset = GET_BE_U_4(bp);
+		    bp += 4;
+		    nla_afnum = GET_BE_U_2(bp);
+		    bp += 2+2;
+		    switch (nla_afnum) {
+		    case AFNUM_INET:
+			if (opt_len != PGM_OPT_PGMCC_FEEDBACK_FIXED_LEN + sizeof(nd_ipv4)) {
+			    ND_PRINT("[Bad OPT_PGMCC_FEEDBACK option, length %u != %u + address size]",
+			        opt_len, PGM_OPT_PGMCC_FEEDBACK_FIXED_LEN);
+			    return;
+			}
+			ND_TCHECK_LEN(bp, sizeof(nd_ipv4));
+			addrtostr(bp, nla_buf, sizeof(nla_buf));
+			bp += sizeof(nd_ipv4);
+			opts_len -= PGM_OPT_PGMCC_FEEDBACK_FIXED_LEN + sizeof(nd_ipv4);
+			break;
+		    case AFNUM_INET6:
+			if (opt_len != PGM_OPT_PGMCC_FEEDBACK_FIXED_LEN + sizeof(nd_ipv6)) {
+			    ND_PRINT("[Bad OPT_PGMCC_FEEDBACK option, length %u != %u + address size]",
+			        opt_len, PGM_OPT_PGMCC_FEEDBACK_FIXED_LEN);
+			    return;
+			}
+			ND_TCHECK_LEN(bp, sizeof(nd_ipv6));
+			addrtostr6(bp, nla_buf, sizeof(nla_buf));
+			bp += sizeof(nd_ipv6);
+			opts_len -= PGM_OPT_PGMCC_FEEDBACK_FIXED_LEN + sizeof(nd_ipv6);
+			break;
+		    default:
+			goto trunc;
+			break;
+		    }
+
+		    ND_PRINT(" PGMCC FEEDBACK %u %s", offset, nla_buf);
+		    break;
+
+		default:
+		    ND_PRINT(" OPT_%02X [%u] ", opt_type, opt_len);
+		    bp += opt_len;
+		    opts_len -= opt_len;
+		    break;
+		}
+
+		if (opt_type & PGM_OPT_END)
+		    break;
+	     }
+	}
+
+	ND_PRINT(" [%u]", length);
+	if (ndo->ndo_packettype == PT_PGM_ZMTP1 &&
+	    (pgm_type_val == PGM_ODATA || pgm_type_val == PGM_RDATA))
+		zmtp1_datagram_print(ndo, bp,
+				     GET_BE_U_2(pgm->pgm_length));
+
+	return;
+
+trunc:
+	nd_print_trunc(ndo);
+}