Adding upstream version 4.99.4.upstream/4.99.4upstream

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

1 files changed, 530 insertions, 0 deletions

diff --git a/print-atm.c b/print-atm.c
new file mode 100644
index 0000000..904fc47
--- /dev/null
+++ b/print-atm.c
@@ -0,0 +1,530 @@
+/*
+ * Copyright (c) 1994, 1995, 1996, 1997
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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, (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, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the University of California,
+ * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+ * the University nor the names of its contributors may be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ * 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.
+ */
+
+/* \summary: Asynchronous Transfer Mode (ATM) printer */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "netdissect-stdinc.h"
+
+#define ND_LONGJMP_FROM_TCHECK
+#include "netdissect.h"
+#include "extract.h"
+#include "addrtoname.h"
+#include "atm.h"
+#include "llc.h"
+
+/* start of the original atmuni31.h */
+
+/*
+ * Copyright (c) 1997 Yen Yen Lim and North Dakota State University
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by Yen Yen Lim and
+        North Dakota State University
+ * 4. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* Based on UNI3.1 standard by ATM Forum */
+
+/* ATM traffic types based on VPI=0 and (the following VCI */
+#define VCI_PPC			0x05	/* Point-to-point signal msg */
+#define VCI_BCC			0x02	/* Broadcast signal msg */
+#define VCI_OAMF4SC		0x03	/* Segment OAM F4 flow cell */
+#define VCI_OAMF4EC		0x04	/* End-to-end OAM F4 flow cell */
+#define VCI_METAC		0x01	/* Meta signal msg */
+#define VCI_ILMIC		0x10	/* ILMI msg */
+
+/* Q.2931 signalling messages */
+#define CALL_PROCEED		0x02	/* call proceeding */
+#define CONNECT			0x07	/* connect */
+#define CONNECT_ACK		0x0f	/* connect_ack */
+#define SETUP			0x05	/* setup */
+#define RELEASE			0x4d	/* release */
+#define RELEASE_DONE		0x5a	/* release_done */
+#define RESTART			0x46	/* restart */
+#define RESTART_ACK		0x4e	/* restart ack */
+#define STATUS			0x7d	/* status */
+#define STATUS_ENQ		0x75	/* status ack */
+#define ADD_PARTY		0x80	/* add party */
+#define ADD_PARTY_ACK		0x81	/* add party ack */
+#define ADD_PARTY_REJ		0x82	/* add party rej */
+#define DROP_PARTY		0x83	/* drop party */
+#define DROP_PARTY_ACK		0x84	/* drop party ack */
+
+/* Information Element Parameters in the signalling messages */
+#define CAUSE			0x08	/* cause */
+#define ENDPT_REF		0x54	/* endpoint reference */
+#define AAL_PARA		0x58	/* ATM adaptation layer parameters */
+#define TRAFF_DESCRIP		0x59	/* atm traffic descriptors */
+#define CONNECT_ID		0x5a	/* connection identifier */
+#define QOS_PARA		0x5c	/* quality of service parameters */
+#define B_HIGHER		0x5d	/* broadband higher layer information */
+#define B_BEARER		0x5e	/* broadband bearer capability */
+#define B_LOWER			0x5f	/* broadband lower information */
+#define CALLING_PARTY		0x6c	/* calling party number */
+#define CALLED_PARTY		0x70	/* called party nmber */
+
+#define Q2931			0x09
+
+/* Q.2931 signalling general messages format */
+#define PROTO_POS       0	/* offset of protocol discriminator */
+#define CALL_REF_POS    2	/* offset of call reference value */
+#define MSG_TYPE_POS    5	/* offset of message type */
+#if 0
+#define MSG_LEN_POS     7	/* offset of message length */
+#define IE_BEGIN_POS    9	/* offset of first information element */
+
+/* format of signalling messages */
+#define TYPE_POS	0
+#define LEN_POS		2
+#define FIELD_BEGIN_POS 4
+#endif
+
+/* end of the original atmuni31.h */
+
+
+#define OAM_CRC10_MASK 0x3ff
+#define OAM_PAYLOAD_LEN 48
+#define OAM_FUNCTION_SPECIFIC_LEN 45 /* this excludes crc10 and cell-type/function-type */
+#define OAM_CELLTYPE_FUNCTYPE_LEN 1
+
+static const struct tok oam_f_values[] = {
+    { VCI_OAMF4SC, "OAM F4 (segment)" },
+    { VCI_OAMF4EC, "OAM F4 (end)" },
+    { 0, NULL }
+};
+
+static const struct tok atm_pty_values[] = {
+    { 0x0, "user data, uncongested, SDU 0" },
+    { 0x1, "user data, uncongested, SDU 1" },
+    { 0x2, "user data, congested, SDU 0" },
+    { 0x3, "user data, congested, SDU 1" },
+    { 0x4, "VCC OAM F5 flow segment" },
+    { 0x5, "VCC OAM F5 flow end-to-end" },
+    { 0x6, "Traffic Control and resource Mgmt" },
+    { 0, NULL }
+};
+
+#define OAM_CELLTYPE_FM 0x1
+#define OAM_CELLTYPE_PM 0x2
+#define OAM_CELLTYPE_AD 0x8
+#define OAM_CELLTYPE_SM 0xf
+
+static const struct tok oam_celltype_values[] = {
+    { OAM_CELLTYPE_FM, "Fault Management" },
+    { OAM_CELLTYPE_PM, "Performance Management" },
+    { OAM_CELLTYPE_AD, "activate/deactivate" },
+    { OAM_CELLTYPE_SM, "System Management" },
+    { 0, NULL }
+};
+
+#define OAM_FM_FUNCTYPE_AIS       0x0
+#define OAM_FM_FUNCTYPE_RDI       0x1
+#define OAM_FM_FUNCTYPE_CONTCHECK 0x4
+#define OAM_FM_FUNCTYPE_LOOPBACK  0x8
+
+static const struct tok oam_fm_functype_values[] = {
+    { OAM_FM_FUNCTYPE_AIS, "AIS" },
+    { OAM_FM_FUNCTYPE_RDI, "RDI" },
+    { OAM_FM_FUNCTYPE_CONTCHECK, "Continuity Check" },
+    { OAM_FM_FUNCTYPE_LOOPBACK, "Loopback" },
+    { 0, NULL }
+};
+
+static const struct tok oam_pm_functype_values[] = {
+    { 0x0, "Forward Monitoring" },
+    { 0x1, "Backward Reporting" },
+    { 0x2, "Monitoring and Reporting" },
+    { 0, NULL }
+};
+
+static const struct tok oam_ad_functype_values[] = {
+    { 0x0, "Performance Monitoring" },
+    { 0x1, "Continuity Check" },
+    { 0, NULL }
+};
+
+#define OAM_FM_LOOPBACK_INDICATOR_MASK 0x1
+
+static const struct tok oam_fm_loopback_indicator_values[] = {
+    { 0x0, "Reply" },
+    { 0x1, "Request" },
+    { 0, NULL }
+};
+
+static const struct uint_tokary oam_celltype2tokary[] = {
+	{ OAM_CELLTYPE_FM, oam_fm_functype_values },
+	{ OAM_CELLTYPE_PM, oam_pm_functype_values },
+	{ OAM_CELLTYPE_AD, oam_ad_functype_values },
+	/* uint2tokary() does not use array termination. */
+};
+
+/*
+ * Print an RFC 1483 LLC-encapsulated ATM frame.
+ */
+static u_int
+atm_llc_print(netdissect_options *ndo,
+              const u_char *p, int length, int caplen)
+{
+	int llc_hdrlen;
+
+	llc_hdrlen = llc_print(ndo, p, length, caplen, NULL, NULL);
+	if (llc_hdrlen < 0) {
+		/* packet not known, print raw packet */
+		if (!ndo->ndo_suppress_default_print)
+			ND_DEFAULTPRINT(p, caplen);
+		llc_hdrlen = -llc_hdrlen;
+	}
+	return (llc_hdrlen);
+}
+
+/*
+ * Given a SAP value, generate the LLC header value for a UI packet
+ * with that SAP as the source and destination SAP.
+ */
+#define LLC_UI_HDR(sap)	((sap)<<16 | (sap<<8) | 0x03)
+
+/*
+ * This is the top level routine of the printer.  'p' points
+ * to the LLC/SNAP header of the packet, 'h->ts' is the timestamp,
+ * 'h->len' is the length of the packet off the wire, and 'h->caplen'
+ * is the number of bytes actually captured.
+ */
+void
+atm_if_print(netdissect_options *ndo,
+             const struct pcap_pkthdr *h, const u_char *p)
+{
+	u_int caplen = h->caplen;
+	u_int length = h->len;
+	uint32_t llchdr;
+	u_int hdrlen = 0;
+
+	ndo->ndo_protocol = "atm";
+
+        /* Cisco Style NLPID ? */
+        if (GET_U_1(p) == LLC_UI) {
+            if (ndo->ndo_eflag)
+                ND_PRINT("CNLPID ");
+            ndo->ndo_ll_hdr_len += 1;
+            isoclns_print(ndo, p + 1, length - 1);
+            return;
+        }
+
+	/*
+	 * Must have at least a DSAP, an SSAP, and the first byte of the
+	 * control field.
+	 */
+
+	/*
+	 * Extract the presumed LLC header into a variable, for quick
+	 * testing.
+	 * Then check for a header that's neither a header for a SNAP
+	 * packet nor an RFC 2684 routed NLPID-formatted PDU nor
+	 * an 802.2-but-no-SNAP IP packet.
+	 */
+	llchdr = GET_BE_U_3(p);
+	if (llchdr != LLC_UI_HDR(LLCSAP_SNAP) &&
+	    llchdr != LLC_UI_HDR(LLCSAP_ISONS) &&
+	    llchdr != LLC_UI_HDR(LLCSAP_IP)) {
+		/*
+		 * XXX - assume 802.6 MAC header from Fore driver.
+		 *
+		 * Unfortunately, the above list doesn't check for
+		 * all known SAPs, doesn't check for headers where
+		 * the source and destination SAP aren't the same,
+		 * and doesn't check for non-UI frames.  It also
+		 * runs the risk of an 802.6 MAC header that happens
+		 * to begin with one of those values being
+		 * incorrectly treated as an 802.2 header.
+		 *
+		 * So is that Fore driver still around?  And, if so,
+		 * is it still putting 802.6 MAC headers on ATM
+		 * packets?  If so, could it be changed to use a
+		 * new DLT_IEEE802_6 value if we added it?
+		 */
+		if (ndo->ndo_eflag)
+			ND_PRINT("%08x%08x %08x%08x ",
+			       GET_BE_U_4(p),
+			       GET_BE_U_4(p + 4),
+			       GET_BE_U_4(p + 8),
+			       GET_BE_U_4(p + 12));
+		/* Always cover the full header. */
+		ND_TCHECK_LEN(p, 20);
+		p += 20;
+		length -= 20;
+		caplen -= 20;
+		hdrlen += 20;
+	}
+	ndo->ndo_ll_hdr_len += hdrlen;
+	ndo->ndo_ll_hdr_len += atm_llc_print(ndo, p, length, caplen);
+}
+
+/*
+ * ATM signalling.
+ */
+static const struct tok msgtype2str[] = {
+	{ CALL_PROCEED,		"Call_proceeding" },
+	{ CONNECT,		"Connect" },
+	{ CONNECT_ACK,		"Connect_ack" },
+	{ SETUP,		"Setup" },
+	{ RELEASE,		"Release" },
+	{ RELEASE_DONE,		"Release_complete" },
+	{ RESTART,		"Restart" },
+	{ RESTART_ACK,		"Restart_ack" },
+	{ STATUS,		"Status" },
+	{ STATUS_ENQ,		"Status_enquiry" },
+	{ ADD_PARTY,		"Add_party" },
+	{ ADD_PARTY_ACK,	"Add_party_ack" },
+	{ ADD_PARTY_REJ,	"Add_party_reject" },
+	{ DROP_PARTY,		"Drop_party" },
+	{ DROP_PARTY_ACK,	"Drop_party_ack" },
+	{ 0,			NULL }
+};
+
+static void
+sig_print(netdissect_options *ndo,
+          const u_char *p)
+{
+	uint32_t call_ref;
+
+	if (GET_U_1(p + PROTO_POS) == Q2931) {
+		/*
+		 * protocol:Q.2931 for User to Network Interface
+		 * (UNI 3.1) signalling
+		 */
+		ND_PRINT("Q.2931");
+		ND_PRINT(":%s ",
+		    tok2str(msgtype2str, "msgtype#%u", GET_U_1(p + MSG_TYPE_POS)));
+
+		/*
+		 * The call reference comes before the message type,
+		 * so if we know we have the message type, which we
+		 * do from the caplen test above, we also know we have
+		 * the call reference.
+		 */
+		call_ref = GET_BE_U_3(p + CALL_REF_POS);
+		ND_PRINT("CALL_REF:0x%06x", call_ref);
+	} else {
+		/* SSCOP with some unknown protocol atop it */
+		ND_PRINT("SSCOP, proto %u ", GET_U_1(p + PROTO_POS));
+	}
+}
+
+/*
+ * Print an ATM PDU (such as an AAL5 PDU).
+ */
+void
+atm_print(netdissect_options *ndo,
+          u_int vpi, u_int vci, u_int traftype, const u_char *p, u_int length,
+          u_int caplen)
+{
+	ndo->ndo_protocol = "atm";
+	if (ndo->ndo_eflag)
+		ND_PRINT("VPI:%u VCI:%u ", vpi, vci);
+
+	if (vpi == 0) {
+		switch (vci) {
+
+		case VCI_PPC:
+			sig_print(ndo, p);
+			return;
+
+		case VCI_BCC:
+			ND_PRINT("broadcast sig: ");
+			return;
+
+		case VCI_OAMF4SC: /* fall through */
+		case VCI_OAMF4EC:
+			oam_print(ndo, p, length, ATM_OAM_HEC);
+			return;
+
+		case VCI_METAC:
+			ND_PRINT("meta: ");
+			return;
+
+		case VCI_ILMIC:
+			ND_PRINT("ilmi: ");
+			snmp_print(ndo, p, length);
+			return;
+		}
+	}
+
+	switch (traftype) {
+
+	case ATM_LLC:
+	default:
+		/*
+		 * Assumes traffic is LLC if unknown.
+		 */
+		atm_llc_print(ndo, p, length, caplen);
+		break;
+
+	case ATM_LANE:
+		lane_print(ndo, p, length, caplen);
+		break;
+	}
+}
+
+struct oam_fm_loopback_t {
+    nd_uint8_t  loopback_indicator;
+    nd_uint32_t correlation_tag;
+    nd_byte     loopback_id[12];
+    nd_byte     source_id[12];
+    nd_byte     unused[16];
+};
+
+struct oam_fm_ais_rdi_t {
+    nd_uint8_t  failure_type;
+    nd_byte     failure_location[16];
+    nd_byte     unused[28];
+};
+
+void
+oam_print(netdissect_options *ndo,
+          const u_char *p, u_int length, u_int hec)
+{
+    uint32_t cell_header;
+    uint16_t vpi, vci, cksum, cksum_shouldbe, idx;
+    uint8_t  cell_type, func_type, payload, clp;
+    const struct tok *oam_functype_str;
+
+    union {
+        const struct oam_fm_loopback_t *oam_fm_loopback;
+        const struct oam_fm_ais_rdi_t *oam_fm_ais_rdi;
+    } oam_ptr;
+
+    ndo->ndo_protocol = "oam";
+    cell_header = GET_BE_U_4(p + hec);
+    cell_type = (GET_U_1((p + ATM_HDR_LEN_NOHEC + hec)) >> 4) & 0x0f;
+    func_type = GET_U_1((p + ATM_HDR_LEN_NOHEC + hec)) & 0x0f;
+
+    vpi = (cell_header>>20)&0xff;
+    vci = (cell_header>>4)&0xffff;
+    payload = (cell_header>>1)&0x7;
+    clp = cell_header&0x1;
+
+    ND_PRINT("%s, vpi %u, vci %u, payload [ %s ], clp %u, length %u",
+           tok2str(oam_f_values, "OAM F5", vci),
+           vpi, vci,
+           tok2str(atm_pty_values, "Unknown", payload),
+           clp, length);
+
+    if (!ndo->ndo_vflag) {
+        return;
+    }
+
+    ND_PRINT("\n\tcell-type %s (%u)",
+           tok2str(oam_celltype_values, "unknown", cell_type),
+           cell_type);
+
+    oam_functype_str = uint2tokary(oam_celltype2tokary, cell_type);
+    if (oam_functype_str == NULL)
+        ND_PRINT(", func-type unknown (%u)", func_type);
+    else
+        ND_PRINT(", func-type %s (%u)",
+               tok2str(oam_functype_str, "none", func_type),
+               func_type);
+
+    p += ATM_HDR_LEN_NOHEC + hec;
+
+    switch (cell_type << 4 | func_type) {
+    case (OAM_CELLTYPE_FM << 4 | OAM_FM_FUNCTYPE_LOOPBACK):
+        oam_ptr.oam_fm_loopback = (const struct oam_fm_loopback_t *)(p + OAM_CELLTYPE_FUNCTYPE_LEN);
+        ND_TCHECK_SIZE(oam_ptr.oam_fm_loopback);
+        ND_PRINT("\n\tLoopback-Indicator %s, Correlation-Tag 0x%08x",
+               tok2str(oam_fm_loopback_indicator_values,
+                       "Unknown",
+                       GET_U_1(oam_ptr.oam_fm_loopback->loopback_indicator) & OAM_FM_LOOPBACK_INDICATOR_MASK),
+               GET_BE_U_4(oam_ptr.oam_fm_loopback->correlation_tag));
+        ND_PRINT("\n\tLocation-ID ");
+        for (idx = 0; idx < sizeof(oam_ptr.oam_fm_loopback->loopback_id); idx++) {
+            if (idx % 2) {
+                ND_PRINT("%04x ",
+                         GET_BE_U_2(&oam_ptr.oam_fm_loopback->loopback_id[idx]));
+            }
+        }
+        ND_PRINT("\n\tSource-ID   ");
+        for (idx = 0; idx < sizeof(oam_ptr.oam_fm_loopback->source_id); idx++) {
+            if (idx % 2) {
+                ND_PRINT("%04x ",
+                         GET_BE_U_2(&oam_ptr.oam_fm_loopback->source_id[idx]));
+            }
+        }
+        break;
+
+    case (OAM_CELLTYPE_FM << 4 | OAM_FM_FUNCTYPE_AIS):
+    case (OAM_CELLTYPE_FM << 4 | OAM_FM_FUNCTYPE_RDI):
+        oam_ptr.oam_fm_ais_rdi = (const struct oam_fm_ais_rdi_t *)(p + OAM_CELLTYPE_FUNCTYPE_LEN);
+        ND_TCHECK_SIZE(oam_ptr.oam_fm_ais_rdi);
+        ND_PRINT("\n\tFailure-type 0x%02x",
+                 GET_U_1(oam_ptr.oam_fm_ais_rdi->failure_type));
+        ND_PRINT("\n\tLocation-ID ");
+        for (idx = 0; idx < sizeof(oam_ptr.oam_fm_ais_rdi->failure_location); idx++) {
+            if (idx % 2) {
+                ND_PRINT("%04x ",
+                         GET_BE_U_2(&oam_ptr.oam_fm_ais_rdi->failure_location[idx]));
+            }
+        }
+        break;
+
+    case (OAM_CELLTYPE_FM << 4 | OAM_FM_FUNCTYPE_CONTCHECK):
+        /* FIXME */
+        break;
+
+    default:
+        break;
+    }
+
+    /* crc10 checksum verification */
+    cksum = GET_BE_U_2(p + OAM_CELLTYPE_FUNCTYPE_LEN + OAM_FUNCTION_SPECIFIC_LEN)
+        & OAM_CRC10_MASK;
+    cksum_shouldbe = verify_crc10_cksum(0, p, OAM_PAYLOAD_LEN);
+
+    ND_PRINT("\n\tcksum 0x%03x (%scorrect)",
+           cksum,
+           cksum_shouldbe == 0 ? "" : "in");
+}