Adding upstream version 4.99.4.upstream/4.99.4

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

1 files changed, 153 insertions, 0 deletions

diff --git a/print-timed.c b/print-timed.c
new file mode 100644
index 0000000..ebd0ac8
--- /dev/null
+++ b/print-timed.c
@@ -0,0 +1,153 @@
+/*
+ * Copyright (c) 2000 Ben Smithurst <ben@scientia.demon.co.uk>
+ * 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: Berkeley UNIX Time Synchronization Protocol */
+
+/* specification: https://docs.freebsd.org/44doc/smm/12.timed/paper.pdf */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "netdissect-stdinc.h"
+
+#include "netdissect.h"
+#include "extract.h"
+
+struct tsp_timeval {
+	nd_int32_t	tv_sec;
+	nd_int32_t	tv_usec;
+};
+
+struct tsp {
+	nd_uint8_t	tsp_type;
+	nd_uint8_t	tsp_vers;
+	nd_uint16_t	tsp_seq;
+	union {
+		struct tsp_timeval tspu_time;
+		nd_int8_t tspu_hopcnt;
+	} tsp_u;
+	nd_byte		tsp_name[256];	/* null-terminated string up to 256 */
+};
+
+#define	tsp_time	tsp_u.tspu_time
+#define	tsp_hopcnt	tsp_u.tspu_hopcnt
+
+/*
+ * Command types.
+ */
+#define	TSP_ANY			0	/* match any types */
+#define	TSP_ADJTIME		1	/* send adjtime */
+#define	TSP_ACK			2	/* generic acknowledgement */
+#define	TSP_MASTERREQ		3	/* ask for master's name */
+#define	TSP_MASTERACK		4	/* acknowledge master request */
+#define	TSP_SETTIME		5	/* send network time */
+#define	TSP_MASTERUP		6	/* inform slaves that master is up */
+#define	TSP_SLAVEUP		7	/* slave is up but not polled */
+#define	TSP_ELECTION		8	/* advance candidature for master */
+#define	TSP_ACCEPT		9	/* support candidature of master */
+#define	TSP_REFUSE		10	/* reject candidature of master */
+#define	TSP_CONFLICT		11	/* two or more masters present */
+#define	TSP_RESOLVE		12	/* masters' conflict resolution */
+#define	TSP_QUIT		13	/* reject candidature if master is up */
+#define	TSP_DATE		14	/* reset the time (date command) */
+#define	TSP_DATEREQ		15	/* remote request to reset the time */
+#define	TSP_DATEACK		16	/* acknowledge time setting  */
+#define	TSP_TRACEON		17	/* turn tracing on */
+#define	TSP_TRACEOFF		18	/* turn tracing off */
+#define	TSP_MSITE		19	/* find out master's site */
+#define	TSP_MSITEREQ		20	/* remote master's site request */
+#define	TSP_TEST		21	/* for testing election algo */
+#define	TSP_SETDATE		22	/* New from date command */
+#define	TSP_SETDATEREQ		23	/* New remote for above */
+#define	TSP_LOOP		24	/* loop detection packet */
+static const struct tok tsptype_str[] = {
+	{ TSP_ANY,        "TSP_ANY"        },
+	{ TSP_ADJTIME,    "TSP_ADJTIME"    },
+	{ TSP_ACK,        "TSP_ACK"        },
+	{ TSP_MASTERREQ,  "TSP_MASTERREQ"  },
+	{ TSP_MASTERACK,  "TSP_MASTERACK"  },
+	{ TSP_SETTIME,    "TSP_SETTIME"    },
+	{ TSP_MASTERUP,   "TSP_MASTERUP"   },
+	{ TSP_SLAVEUP,    "TSP_SLAVEUP"    },
+	{ TSP_ELECTION,   "TSP_ELECTION"   },
+	{ TSP_ACCEPT,     "TSP_ACCEPT"     },
+	{ TSP_REFUSE,     "TSP_REFUSE"     },
+	{ TSP_CONFLICT,   "TSP_CONFLICT"   },
+	{ TSP_RESOLVE,    "TSP_RESOLVE"    },
+	{ TSP_QUIT,       "TSP_QUIT"       },
+	{ TSP_DATE,       "TSP_DATE"       },
+	{ TSP_DATEREQ,    "TSP_DATEREQ"    },
+	{ TSP_DATEACK,    "TSP_DATEACK"    },
+	{ TSP_TRACEON,    "TSP_TRACEON"    },
+	{ TSP_TRACEOFF,   "TSP_TRACEOFF"   },
+	{ TSP_MSITE,      "TSP_MSITE"      },
+	{ TSP_MSITEREQ,   "TSP_MSITEREQ"   },
+	{ TSP_TEST,       "TSP_TEST"       },
+	{ TSP_SETDATE,    "TSP_SETDATE"    },
+	{ TSP_SETDATEREQ, "TSP_SETDATEREQ" },
+	{ TSP_LOOP,       "TSP_LOOP"       },
+	{ 0, NULL }
+};
+
+void
+timed_print(netdissect_options *ndo,
+            const u_char *bp)
+{
+	const struct tsp *tsp = (const struct tsp *)bp;
+	uint8_t tsp_type;
+	int sec, usec;
+
+	ndo->ndo_protocol = "timed";
+	tsp_type = GET_U_1(tsp->tsp_type);
+	ND_PRINT("%s", tok2str(tsptype_str, "(tsp_type %#x)", tsp_type));
+
+	ND_PRINT(" vers %u", GET_U_1(tsp->tsp_vers));
+
+	ND_PRINT(" seq %u", GET_BE_U_2(tsp->tsp_seq));
+
+	switch (tsp_type) {
+	case TSP_LOOP:
+		ND_PRINT(" hopcnt %u", GET_U_1(tsp->tsp_hopcnt));
+		break;
+	case TSP_SETTIME:
+	case TSP_ADJTIME:
+	case TSP_SETDATE:
+	case TSP_SETDATEREQ:
+		sec = GET_BE_S_4(tsp->tsp_time.tv_sec);
+		usec = GET_BE_S_4(tsp->tsp_time.tv_usec);
+		/* XXX The comparison below is always false? */
+		if (usec < 0)
+			/* invalid, skip the rest of the packet */
+			return;
+		ND_PRINT(" time ");
+		if (sec < 0 && usec != 0) {
+			sec++;
+			if (sec == 0)
+				ND_PRINT("-");
+			usec = 1000000 - usec;
+		}
+		ND_PRINT("%d.%06d", sec, usec);
+		break;
+	}
+	ND_PRINT(" name ");
+	nd_printjnp(ndo, tsp->tsp_name, sizeof(tsp->tsp_name));
+}