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Print rejected rpc packet reason.

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This commit is contained in:
christos 2006-08-11 19:01:18 +00:00
parent a1c876ddfc
commit 95ee253760
1 changed files with 79 additions and 7 deletions
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86
dist/tcpdump/print-nfs.c vendored
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@ -1,4 +1,4 @@
/* $NetBSD: print-nfs.c,v 1.13 2004/09/27 23:04:24 dyoung Exp $ */
/* $NetBSD: print-nfs.c,v 1.14 2006/08/11 19:01:18 christos Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
@ -27,7 +27,7 @@
static const char rcsid[] _U_ =
"@(#) Header: /tcpdump/master/tcpdump/print-nfs.c,v 1.99.2.2 2003/11/16 08:51:35 guy Exp (LBL)";
#else
__RCSID("$NetBSD: print-nfs.c,v 1.13 2004/09/27 23:04:24 dyoung Exp $");
__RCSID("$NetBSD: print-nfs.c,v 1.14 2006/08/11 19:01:18 christos Exp $");
#endif
#endif
@ -59,6 +59,7 @@ static void nfs_printfh(const u_int32_t *, const u_int);
static void xid_map_enter(const struct rpc_msg *, const u_char *);
static int32_t xid_map_find(const struct rpc_msg *, const u_char *,
u_int32_t *, u_int32_t *);
static void parserejrep(const struct rpc_msg *, u_int);
static void interp_reply(const struct rpc_msg *, u_int32_t, u_int32_t, int);
static const u_int32_t *parse_post_op_attr(const u_int32_t *, int);
static void print_sattr3(const struct nfsv3_sattr *sa3, int verbose);
@ -348,7 +349,7 @@ nfsreply_print(register const u_char *bp, u_int length,
register const u_char *bp2)
{
register const struct rpc_msg *rp;
u_int32_t proc, vers;
u_int32_t proc, vers, reply;
char srcid[20], dstid[20]; /*fits 32bit*/
nfserr = 0; /* assume no error */
@ -364,10 +365,12 @@ nfsreply_print(register const u_char *bp, u_int length,
EXTRACT_32BITS(&rp->rm_xid));
}
print_nfsaddr(bp2, srcid, dstid);
(void)printf("reply %s %d",
EXTRACT_32BITS(&rp->rm_reply.rp_stat) == MSG_ACCEPTED?
"ok":"ERR",
length);
reply = EXTRACT_32BITS(&rp->rm_reply.rp_stat);
(void)printf("reply %s %d", reply == MSG_ACCEPTED ? "ok" : "ERR",
length);
if (reply != MSG_ACCEPTED)
parserejrep(rp, length);
if (xid_map_find(rp, bp2, &proc, &vers) >= 0)
interp_reply(rp, proc, vers, length);
@ -976,6 +979,75 @@ xid_map_find(const struct rpc_msg *rp, const u_char *bp, u_int32_t *proc,
* Routines for parsing reply packets
*/
static void
parserejrep(register const struct rpc_msg *rp, register u_int length)
{
enum reject_stat rstat;
rpcvers_t rlow;
rpcvers_t rhigh;
enum auth_stat rwhy;
int reply;
switch (reply = EXTRACT_32BITS(&rp->rm_reply.rp_stat)) {
case MSG_ACCEPTED:
printf("Internal logic error\n");
break;
case MSG_DENIED:
rstat = rp->rm_reply.rp_rjct.rj_stat;
switch (rstat) {
case RPC_MISMATCH:
rlow = rp->rm_reply.rp_rjct.rj_vers.low;
rhigh = rp->rm_reply.rp_rjct.rj_vers.high;
printf("RPC Version mismatch (%d-%d)\n",
(int)rlow, (int)rhigh);
break;
case AUTH_ERROR:
rwhy = rp->rm_reply.rp_rjct.rj_why;
printf("Auth ");
switch (rwhy) {
case AUTH_OK:
printf("OK\n");
break;
case AUTH_BADCRED:
printf("Bogus Credentials (seal broken)\n");
break;
case AUTH_REJECTEDCRED:
printf("Rejected Credentials (client should "
"begin new session)\n");
break;
case AUTH_BADVERF:
printf("Bogus Verifier (seal broken)\n");
break;
case AUTH_REJECTEDVERF:
printf("Verifier expired or was replayed\n");
break;
case AUTH_TOOWEAK:
printf("Credentials are too weak\n");
break;
case AUTH_INVALIDRESP:
printf("Bogus response verifier\n");
break;
case AUTH_FAILED:
printf("Unknown failure\n");
break;
default:
printf("Invalid failure code %d\n",
(int)rwhy);
break;
}
break;
default:
printf("Unknown reason for rejecting rpc message %d\n",
(int)rstat);
break;
}
break;
default:
printf("Unknown rpc response code %d\n", reply);
break;
}
}
/*
* Return a pointer to the beginning of the actual results.
* If the packet was truncated, return 0.