X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/f6e484ef408c9a01f19f4a924ce7725f249b55da..refs/heads/tcpdump-4.0:/print-llc.c

diff --git a/print-llc.c b/print-llc.c
index 50ba5cde..0c8259fb 100644
--- a/print-llc.c
+++ b/print-llc.c
@@ -24,7 +24,7 @@
 
 #ifndef lint
 static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/print-llc.c,v 1.66 2005-09-29 07:37:08 hannes Exp $";
+    "@(#) $Header: /tcpdump/master/tcpdump/print-llc.c,v 1.75 2007-04-13 09:43:11 hannes Exp $";
 #endif
 
 #ifdef HAVE_CONFIG_H
@@ -80,20 +80,33 @@ static const struct tok llc_flag_values[] = {
         { LLC_GSAP, "Response" },
         { LLC_U_POLL, "Poll" },
         { LLC_GSAP|LLC_U_POLL, "Final" },
+        { LLC_IS_POLL, "Poll" },
         { LLC_GSAP|LLC_IS_POLL, "Final" },
 	{ 0, NULL }
 };
 
+
+static const struct tok llc_ig_flag_values[] = { 
+        { 0, "Individual" },
+        { LLC_IG, "Group" },
+	{ 0, NULL }
+};
+
+
 static const struct tok llc_supervisory_values[] = { 
         { 0, "Receiver Ready" },
-        { 1, "Reject" },
-        { 2, "Receiver not Ready" },
+        { 1, "Receiver not Ready" },
+        { 2, "Reject" },
 	{ 0,             NULL }
 };
 
 
 static const struct tok cisco_values[] = { 
 	{ PID_CISCO_CDP, "CDP" },
+	{ PID_CISCO_VTP, "VTP" },
+	{ PID_CISCO_DTP, "DTP" },
+	{ PID_CISCO_UDLD, "UDLD" },
+	{ PID_CISCO_PVST, "PVST" },
 	{ 0,             NULL }
 };
 
@@ -112,6 +125,10 @@ static const struct tok bridged_values[] = {
 	{ 0,                       NULL },
 };
 
+static const struct tok null_values[] = { 
+	{ 0,             NULL }
+};
+
 struct oui_tok {
 	u_int32_t	oui;
 	const struct tok *tok;
@@ -138,6 +155,8 @@ llc_print(const u_char *p, u_int length, u_int caplen,
 	int is_u;
 	register int ret;
 
+	*extracted_ethertype = 0;
+
 	if (caplen < 3) {
 		(void)printf("[|llc]");
 		default_print((u_char *)p, caplen);
@@ -145,9 +164,7 @@ llc_print(const u_char *p, u_int length, u_int caplen,
 	}
 
 	dsap_field = *p;
-        dsap = dsap_field & ~LLC_IG;
 	ssap_field = *(p + 1);
-	ssap = ssap_field & ~LLC_GSAP;
 
 	/*
 	 * OK, what type of LLC frame is this?  The length
@@ -179,7 +196,7 @@ llc_print(const u_char *p, u_int length, u_int caplen,
 		is_u = 0;
 	}
 
-	if (ssap == LLCSAP_GLOBAL && dsap == LLCSAP_GLOBAL) {
+	if (ssap_field == LLCSAP_GLOBAL && dsap_field == LLCSAP_GLOBAL) {
 		/*
 		 * This is an Ethernet_802.3 IPX frame; it has an
 		 * 802.3 header (i.e., an Ethernet header where the
@@ -202,17 +219,22 @@ llc_print(const u_char *p, u_int length, u_int caplen,
             return (1);
 	}
 
+	dsap = dsap_field & ~LLC_IG;
+	ssap = ssap_field & ~LLC_GSAP;
+
 	if (eflag) {
-                printf("LLC, dsap %s (0x%02x), ssap %s (0x%02x)",
+                printf("LLC, dsap %s (0x%02x) %s, ssap %s (0x%02x) %s",
                        tok2str(llc_values, "Unknown", dsap),
                        dsap,
+                       tok2str(llc_ig_flag_values, "Unknown", dsap_field & LLC_IG),
                        tok2str(llc_values, "Unknown", ssap),
-                       ssap);
+                       ssap,
+                       tok2str(llc_flag_values, "Unknown", ssap_field & LLC_GSAP));
 
 		if (is_u) {
-			printf(", cmd 0x%02x: ", control);
+			printf(", ctrl 0x%02x: ", control);
 		} else {
-			printf(", cmd 0x%04x: ", control);
+			printf(", ctrl 0x%04x: ", control);
 		}
 	}
 
@@ -319,7 +341,7 @@ llc_print(const u_char *p, u_int length, u_int caplen,
 	if (is_u) {
 		printf("Unnumbered, %s, Flags [%s], length %u",
                        tok2str(llc_cmd_values, "%02x", LLC_U_CMD(control)),
-                       bittok2str(llc_flag_values,"?",(ssap) | (control & LLC_U_POLL)),
+                       tok2str(llc_flag_values,"?",(ssap_field & LLC_GSAP) | (control & LLC_U_POLL)),
                        length);
 
 		p += 3;
@@ -335,18 +357,17 @@ llc_print(const u_char *p, u_int length, u_int caplen,
 			}
 		}
 	} else {
-
 		if ((control & LLC_S_FMT) == LLC_S_FMT) {
 			(void)printf("Supervisory, %s, rcv seq %u, Flags [%s], length %u",
 				tok2str(llc_supervisory_values,"?",LLC_S_CMD(control)),
 				LLC_IS_NR(control),
-				bittok2str(llc_flag_values,"?",(ssap) | (control & LLC_IS_POLL)),
+				tok2str(llc_flag_values,"?",(ssap_field & LLC_GSAP) | (control & LLC_IS_POLL)),
                                 length);
 		} else {
 			(void)printf("Information, send seq %u, rcv seq %u, Flags [%s], length %u",
 				LLC_I_NS(control),
 				LLC_IS_NR(control),
-				bittok2str(llc_flag_values,"?",(ssap) | (control & LLC_IS_POLL)),
+				tok2str(llc_flag_values,"?",(ssap_field & LLC_GSAP) | (control & LLC_IS_POLL)),
                                 length);
 		}
 		p += 4;
@@ -369,7 +390,7 @@ snap_print(const u_char *p, u_int length, u_int caplen,
 	et = EXTRACT_16BITS(p + 3);
 
 	if (eflag) {
-		const struct tok *tok = NULL;
+		const struct tok *tok = null_values;
 		const struct oui_tok *otp;
 
 		for (otp = &oui_to_tok[0]; otp->tok != NULL; otp++) {
@@ -422,11 +443,25 @@ snap_print(const u_char *p, u_int length, u_int caplen,
 		break;
 
 	case OUI_CISCO:
-		if (et == PID_CISCO_CDP) {
-			cdp_print(p, length, caplen);
-			return (1);
-		}
-		break;
+                switch (et) {
+                case PID_CISCO_CDP:
+                        cdp_print(p, length, caplen);
+                        return (1);
+                case PID_CISCO_DTP:
+                        dtp_print(p, length); 
+                        return (1);
+                case PID_CISCO_UDLD:
+                        udld_print(p, length);
+                        return (1);
+                case PID_CISCO_VTP:
+                        vtp_print(p, length);
+                        return (1);
+                case PID_CISCO_PVST:
+                        stp_print(p, length);
+                        return (1);
+                default:
+                        break;
+                }
 
 	case OUI_RFC2684:
 		switch (et) {