void
nfsreply_print(netdissect_options *ndo,
const u_char *bp, u_int length,
const u_char *bp2)
{
const struct sunrpc_msg *rp;
char srcid[20], dstid[20]; /*fits 32bit*/
nfserr = 0; /* assume no error */
rp = (const struct sunrpc_msg *)bp;
ND_TCHECK_4(rp->rm_xid);
if (!ndo->ndo_nflag) {
strlcpy(srcid, "nfs", sizeof(srcid));
snprintf(dstid, sizeof(dstid), "%u",
EXTRACT_BE_U_4(rp->rm_xid));
} else {
snprintf(srcid, sizeof(srcid), "%u", NFS_PORT);
snprintf(dstid, sizeof(dstid), "%u",
EXTRACT_BE_U_4(rp->rm_xid));
}
print_nfsaddr(ndo, bp2, srcid, dstid);
nfsreply_noaddr_print(ndo, bp, length, bp2);
return;
trunc:
if (!nfserr)
ND_PRINT("%s", tstr);
}
void
nfsreq_print(register const u_char *bp, u_int length,
register const u_char *bp2)
{
register const struct sunrpc_msg *rp;
char srcid[20], dstid[20]; /*fits 32bit*/
nfserr = 0; /* assume no error */
rp = (const struct sunrpc_msg *)bp;
TCHECK(rp->rm_xid);
if (!nflag) {
snprintf(srcid, sizeof(srcid), "%u",
EXTRACT_32BITS(&rp->rm_xid));
strlcpy(dstid, "nfs", sizeof(dstid));
} else {
snprintf(srcid, sizeof(srcid), "%u",
EXTRACT_32BITS(&rp->rm_xid));
snprintf(dstid, sizeof(dstid), "%u", NFS_PORT);
}
print_nfsaddr(bp2, srcid, dstid);
(void)printf("%d", length);
nfsreq_print_noaddr(bp, length, bp2);
return;
trunc:
if (!nfserr)
printf("%s", tstr);
}
void
nfsreq_print(register const u_char *bp, u_int length,
register const u_char *bp2)
{
register const struct sunrpc_msg *rp;
register const u_int32_t *dp;
nfs_type type;
int v3;
u_int32_t proc;
u_int32_t access_flags;
struct nfsv3_sattr sa3;
char srcid[20], dstid[20]; /*fits 32bit*/
nfserr = 0; /* assume no error */
rp = (const struct sunrpc_msg *)bp;
TCHECK(rp->rm_xid);
if (!nflag) {
snprintf(srcid, sizeof(srcid), "%u",
EXTRACT_32BITS(&rp->rm_xid));
strlcpy(dstid, "nfs", sizeof(dstid));
} else {
snprintf(srcid, sizeof(srcid), "%u",
EXTRACT_32BITS(&rp->rm_xid));
snprintf(dstid, sizeof(dstid), "%u", NFS_PORT);
}
print_nfsaddr(bp2, srcid, dstid);
(void)printf("%d", length);
if (!xid_map_enter(rp, bp2)) /* record proc number for later on */
goto trunc;
v3 = (EXTRACT_32BITS(&rp->rm_call.cb_vers) == NFS_VER3);
proc = EXTRACT_32BITS(&rp->rm_call.cb_proc);
if (!v3 && proc < NFS_NPROCS)
proc = nfsv3_procid[proc];
switch (proc) {
case NFSPROC_NOOP:
printf(" nop");
return;
case NFSPROC_NULL:
printf(" null");
return;
case NFSPROC_GETATTR:
printf(" getattr");
if ((dp = parsereq(rp, length)) != NULL &&
parsefh(dp, v3) != NULL)
return;
break;
case NFSPROC_SETATTR:
printf(" setattr");
if ((dp = parsereq(rp, length)) != NULL &&
parsefh(dp, v3) != NULL)
return;
break;
case NFSPROC_LOOKUP:
printf(" lookup");
if ((dp = parsereq(rp, length)) != NULL &&
parsefhn(dp, v3) != NULL)
return;
break;
case NFSPROC_ACCESS:
printf(" access");
if ((dp = parsereq(rp, length)) != NULL &&
(dp = parsefh(dp, v3)) != NULL) {
TCHECK(dp[0]);
access_flags = EXTRACT_32BITS(&dp[0]);
if (access_flags & ~NFSV3ACCESS_FULL) {
/* NFSV3ACCESS definitions aren't up to date */
printf(" %04x", access_flags);
} else if ((access_flags & NFSV3ACCESS_FULL) == NFSV3ACCESS_FULL) {
printf(" NFS_ACCESS_FULL");
} else {
char separator = ' ';
if (access_flags & NFSV3ACCESS_READ) {
printf(" NFS_ACCESS_READ");
separator = '|';
}
if (access_flags & NFSV3ACCESS_LOOKUP) {
printf("%cNFS_ACCESS_LOOKUP", separator);
separator = '|';
}
if (access_flags & NFSV3ACCESS_MODIFY) {
printf("%cNFS_ACCESS_MODIFY", separator);
separator = '|';
}
if (access_flags & NFSV3ACCESS_EXTEND) {
printf("%cNFS_ACCESS_EXTEND", separator);
separator = '|';
}
if (access_flags & NFSV3ACCESS_DELETE) {
printf("%cNFS_ACCESS_DELETE", separator);
separator = '|';
}
if (access_flags & NFSV3ACCESS_EXECUTE)
printf("%cNFS_ACCESS_EXECUTE", separator);
}
return;
}
break;
case NFSPROC_READLINK:
printf(" readlink");
if ((dp = parsereq(rp, length)) != NULL &&
parsefh(dp, v3) != NULL)
return;
break;
case NFSPROC_READ:
printf(" read");
if ((dp = parsereq(rp, length)) != NULL &&
(dp = parsefh(dp, v3)) != NULL) {
if (v3) {
TCHECK(dp[2]);
printf(" %u bytes @ %" PRIu64,
EXTRACT_32BITS(&dp[2]),
EXTRACT_64BITS(&dp[0]));
} else {
TCHECK(dp[1]);
printf(" %u bytes @ %u",
EXTRACT_32BITS(&dp[1]),
EXTRACT_32BITS(&dp[0]));
}
return;
}
break;
case NFSPROC_WRITE:
printf(" write");
if ((dp = parsereq(rp, length)) != NULL &&
(dp = parsefh(dp, v3)) != NULL) {
if (v3) {
TCHECK(dp[2]);
printf(" %u (%u) bytes @ %" PRIu64,
EXTRACT_32BITS(&dp[4]),
EXTRACT_32BITS(&dp[2]),
EXTRACT_64BITS(&dp[0]));
if (vflag) {
dp += 3;
TCHECK(dp[0]);
printf(" <%s>",
tok2str(nfsv3_writemodes,
NULL, EXTRACT_32BITS(dp)));
}
} else {
TCHECK(dp[3]);
printf(" %u (%u) bytes @ %u (%u)",
EXTRACT_32BITS(&dp[3]),
EXTRACT_32BITS(&dp[2]),
EXTRACT_32BITS(&dp[1]),
EXTRACT_32BITS(&dp[0]));
}
return;
}
break;
case NFSPROC_CREATE:
printf(" create");
if ((dp = parsereq(rp, length)) != NULL &&
parsefhn(dp, v3) != NULL)
return;
break;
case NFSPROC_MKDIR:
printf(" mkdir");
if ((dp = parsereq(rp, length)) != 0 && parsefhn(dp, v3) != 0)
return;
break;
case NFSPROC_SYMLINK:
printf(" symlink");
if ((dp = parsereq(rp, length)) != 0 &&
(dp = parsefhn(dp, v3)) != 0) {
fputs(" ->", stdout);
if (v3 && (dp = parse_sattr3(dp, &sa3)) == 0)
break;
if (parsefn(dp) == 0)
break;
if (v3 && vflag)
print_sattr3(&sa3, vflag);
return;
}
break;
case NFSPROC_MKNOD:
printf(" mknod");
if ((dp = parsereq(rp, length)) != 0 &&
(dp = parsefhn(dp, v3)) != 0) {
TCHECK(*dp);
type = (nfs_type)EXTRACT_32BITS(dp);
dp++;
if ((dp = parse_sattr3(dp, &sa3)) == 0)
break;
printf(" %s", tok2str(type2str, "unk-ft %d", type));
if (vflag && (type == NFCHR || type == NFBLK)) {
TCHECK(dp[1]);
printf(" %u/%u",
EXTRACT_32BITS(&dp[0]),
EXTRACT_32BITS(&dp[1]));
dp += 2;
}
if (vflag)
print_sattr3(&sa3, vflag);
return;
}
break;
case NFSPROC_REMOVE:
printf(" remove");
if ((dp = parsereq(rp, length)) != NULL &&
parsefhn(dp, v3) != NULL)
return;
break;
case NFSPROC_RMDIR:
printf(" rmdir");
if ((dp = parsereq(rp, length)) != NULL &&
parsefhn(dp, v3) != NULL)
return;
break;
case NFSPROC_RENAME:
printf(" rename");
if ((dp = parsereq(rp, length)) != NULL &&
(dp = parsefhn(dp, v3)) != NULL) {
fputs(" ->", stdout);
if (parsefhn(dp, v3) != NULL)
return;
}
break;
case NFSPROC_LINK:
printf(" link");
if ((dp = parsereq(rp, length)) != NULL &&
(dp = parsefh(dp, v3)) != NULL) {
fputs(" ->", stdout);
if (parsefhn(dp, v3) != NULL)
return;
}
break;
case NFSPROC_READDIR:
printf(" readdir");
if ((dp = parsereq(rp, length)) != NULL &&
(dp = parsefh(dp, v3)) != NULL) {
if (v3) {
TCHECK(dp[4]);
/*
* We shouldn't really try to interpret the
* offset cookie here.
*/
printf(" %u bytes @ %" PRId64,
EXTRACT_32BITS(&dp[4]),
EXTRACT_64BITS(&dp[0]));
if (vflag)
printf(" verf %08x%08x", dp[2],
dp[3]);
} else {
TCHECK(dp[1]);
/*
* Print the offset as signed, since -1 is
* common, but offsets > 2^31 aren't.
*/
printf(" %u bytes @ %d",
EXTRACT_32BITS(&dp[1]),
EXTRACT_32BITS(&dp[0]));
}
return;
}
break;
case NFSPROC_READDIRPLUS:
printf(" readdirplus");
if ((dp = parsereq(rp, length)) != NULL &&
(dp = parsefh(dp, v3)) != NULL) {
TCHECK(dp[4]);
/*
* We don't try to interpret the offset
* cookie here.
*/
printf(" %u bytes @ %" PRId64,
EXTRACT_32BITS(&dp[4]),
EXTRACT_64BITS(&dp[0]));
if (vflag) {
TCHECK(dp[5]);
printf(" max %u verf %08x%08x",
EXTRACT_32BITS(&dp[5]), dp[2], dp[3]);
}
return;
}
break;
case NFSPROC_FSSTAT:
printf(" fsstat");
if ((dp = parsereq(rp, length)) != NULL &&
parsefh(dp, v3) != NULL)
return;
break;
case NFSPROC_FSINFO:
printf(" fsinfo");
if ((dp = parsereq(rp, length)) != NULL &&
parsefh(dp, v3) != NULL)
return;
break;
case NFSPROC_PATHCONF:
printf(" pathconf");
if ((dp = parsereq(rp, length)) != NULL &&
parsefh(dp, v3) != NULL)
return;
break;
case NFSPROC_COMMIT:
printf(" commit");
if ((dp = parsereq(rp, length)) != NULL &&
(dp = parsefh(dp, v3)) != NULL) {
TCHECK(dp[2]);
printf(" %u bytes @ %" PRIu64,
EXTRACT_32BITS(&dp[2]),
EXTRACT_64BITS(&dp[0]));
return;
}
break;
default:
printf(" proc-%u", EXTRACT_32BITS(&rp->rm_call.cb_proc));
return;
}
trunc:
if (!nfserr)
fputs(" [|nfs]", stdout);
}
void
nfsreply_print(register const u_char *bp, u_int length,
register const u_char *bp2)
{
register const struct sunrpc_msg *rp;
u_int32_t proc, vers, reply_stat;
char srcid[20], dstid[20]; /*fits 32bit*/
enum sunrpc_reject_stat rstat;
u_int32_t rlow;
u_int32_t rhigh;
enum sunrpc_auth_stat rwhy;
nfserr = 0; /* assume no error */
rp = (const struct sunrpc_msg *)bp;
TCHECK(rp->rm_xid);
if (!nflag) {
strlcpy(srcid, "nfs", sizeof(srcid));
snprintf(dstid, sizeof(dstid), "%u",
EXTRACT_32BITS(&rp->rm_xid));
} else {
snprintf(srcid, sizeof(srcid), "%u", NFS_PORT);
snprintf(dstid, sizeof(dstid), "%u",
EXTRACT_32BITS(&rp->rm_xid));
}
print_nfsaddr(bp2, srcid, dstid);
TCHECK(rp->rm_reply.rp_stat);
reply_stat = EXTRACT_32BITS(&rp->rm_reply.rp_stat);
switch (reply_stat) {
case SUNRPC_MSG_ACCEPTED:
(void)printf("reply ok %u", length);
if (xid_map_find(rp, bp2, &proc, &vers) >= 0)
interp_reply(rp, proc, vers, length);
break;
case SUNRPC_MSG_DENIED:
(void)printf("reply ERR %u: ", length);
TCHECK(rp->rm_reply.rp_reject.rj_stat);
rstat = EXTRACT_32BITS(&rp->rm_reply.rp_reject.rj_stat);
switch (rstat) {
case SUNRPC_RPC_MISMATCH:
TCHECK(rp->rm_reply.rp_reject.rj_vers.high);
rlow = EXTRACT_32BITS(&rp->rm_reply.rp_reject.rj_vers.low);
rhigh = EXTRACT_32BITS(&rp->rm_reply.rp_reject.rj_vers.high);
(void)printf("RPC Version mismatch (%u-%u)",
rlow, rhigh);
break;
case SUNRPC_AUTH_ERROR:
TCHECK(rp->rm_reply.rp_reject.rj_why);
rwhy = EXTRACT_32BITS(&rp->rm_reply.rp_reject.rj_why);
(void)printf("Auth ");
switch (rwhy) {
case SUNRPC_AUTH_OK:
(void)printf("OK");
break;
case SUNRPC_AUTH_BADCRED:
(void)printf("Bogus Credentials (seal broken)");
break;
case SUNRPC_AUTH_REJECTEDCRED:
(void)printf("Rejected Credentials (client should begin new session)");
break;
case SUNRPC_AUTH_BADVERF:
(void)printf("Bogus Verifier (seal broken)");
break;
case SUNRPC_AUTH_REJECTEDVERF:
(void)printf("Verifier expired or was replayed");
break;
case SUNRPC_AUTH_TOOWEAK:
(void)printf("Credentials are too weak");
break;
case SUNRPC_AUTH_INVALIDRESP:
(void)printf("Bogus response verifier");
break;
case SUNRPC_AUTH_FAILED:
(void)printf("Unknown failure");
break;
default:
(void)printf("Invalid failure code %u",
(unsigned int)rwhy);
break;
}
break;
default:
(void)printf("Unknown reason for rejecting rpc message %u",
(unsigned int)rstat);
break;
}
break;
default:
(void)printf("reply Unknown rpc response code=%u %u",
reply_stat, length);
break;
}
return;
trunc:
if (!nfserr)
fputs(" [|nfs]", stdout);
}
