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Diffstat (limited to 'freebsd/contrib/tcpdump/parsenfsfh.c')
-rw-r--r--freebsd/contrib/tcpdump/parsenfsfh.c302
1 files changed, 152 insertions, 150 deletions
diff --git a/freebsd/contrib/tcpdump/parsenfsfh.c b/freebsd/contrib/tcpdump/parsenfsfh.c
index a6025e6b..bb391379 100644
--- a/freebsd/contrib/tcpdump/parsenfsfh.c
+++ b/freebsd/contrib/tcpdump/parsenfsfh.c
@@ -1,5 +1,8 @@
#include <machine/rtems-bsd-user-space.h>
-
+#ifdef __rtems__
+#include <machine/rtems-bsd-program.h>
+#include "rtems-bsd-tcpdump-namespace.h"
+#endif /* __rtems__ */
/*
* Copyright (c) 1993, 1994 Jeffrey C. Mogul, Digital Equipment Corporation,
* Western Research Laboratory. All rights reserved.
@@ -40,25 +43,18 @@
* Jeffrey C. Mogul
* Digital Equipment Corporation
* Western Research Laboratory
- *
- * $FreeBSD$
*/
-#ifndef lint
-static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/parsenfsfh.c,v 1.29 2006-06-13 22:21:38 guy Exp $ (LBL)";
-#endif
-
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include <tcpdump-stdinc.h>
+#include <netdissect-stdinc.h>
#include <stdio.h>
#include <string.h>
-#include "interface.h"
+#include "netdissect.h"
#include "nfsfh.h"
/*
@@ -87,7 +83,7 @@ static const char rcsid[] _U_ =
#ifdef ultrix
/* Nasty hack to keep the Ultrix C compiler from emitting bogus warnings */
-#define XFF(x) ((u_int32_t)(x))
+#define XFF(x) ((uint32_t)(x))
#else
#define XFF(x) (x)
#endif
@@ -111,153 +107,158 @@ static const char rcsid[] _U_ =
((lsb) + ((e)<<8) + ((d)<<16) + ((c)<<24))
#endif
-static int is_UCX(const unsigned char *);
+static int is_UCX(const unsigned char *, u_int);
void
-Parse_fh(fh, len, fsidp, inop, osnamep, fsnamep, ourself)
-register const unsigned char *fh;
-int len _U_;
-my_fsid *fsidp;
-ino_t *inop;
-const char **osnamep; /* if non-NULL, return OS name here */
-const char **fsnamep; /* if non-NULL, return server fs name here (for VMS) */
-int ourself; /* true if file handle was generated on this host */
+Parse_fh(register const unsigned char *fh, u_int len, my_fsid *fsidp,
+ uint32_t *inop,
+ const char **osnamep, /* if non-NULL, return OS name here */
+ const char **fsnamep, /* if non-NULL, return server fs name here (for VMS) */
+ int ourself) /* true if file handle was generated on this host */
{
register const unsigned char *fhp = fh;
- u_int32_t temp;
+ uint32_t temp;
int fhtype = FHT_UNKNOWN;
- int i;
+ u_int i;
- if (ourself) {
- /* File handle generated on this host, no need for guessing */
+ /*
+ * Require at least 16 bytes of file handle; it's variable-length
+ * in NFSv3. "len" is in units of 32-bit words, not bytes.
+ */
+ if (len < 16/4)
+ fhtype = FHT_UNKNOWN;
+ else {
+ if (ourself) {
+ /* File handle generated on this host, no need for guessing */
#if defined(IRIX40)
- fhtype = FHT_IRIX4;
+ fhtype = FHT_IRIX4;
#endif
#if defined(IRIX50)
- fhtype = FHT_IRIX5;
+ fhtype = FHT_IRIX5;
#endif
#if defined(IRIX51)
- fhtype = FHT_IRIX5;
+ fhtype = FHT_IRIX5;
#endif
#if defined(SUNOS4)
- fhtype = FHT_SUNOS4;
+ fhtype = FHT_SUNOS4;
#endif
#if defined(SUNOS5)
- fhtype = FHT_SUNOS5;
+ fhtype = FHT_SUNOS5;
#endif
#if defined(ultrix)
- fhtype = FHT_ULTRIX;
+ fhtype = FHT_ULTRIX;
#endif
#if defined(__osf__)
- fhtype = FHT_DECOSF;
+ fhtype = FHT_DECOSF;
#endif
#if defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__) \
|| defined(__OpenBSD__)
- fhtype = FHT_BSD44;
-#endif
- }
- /*
- * This is basically a big decision tree
- */
- else if ((fhp[0] == 0) && (fhp[1] == 0)) {
- /* bytes[0,1] == (0,0); rules out Ultrix, IRIX5, SUNOS5 */
- /* probably rules out HP-UX, AIX unless they allow major=0 */
- if ((fhp[2] == 0) && (fhp[3] == 0)) {
- /* bytes[2,3] == (0,0); must be Auspex */
- /* XXX or could be Ultrix+MASSBUS "hp" disk? */
- fhtype = FHT_AUSPEX;
- }
- else {
- /*
- * bytes[2,3] != (0,0); rules out Auspex, could be
- * DECOSF, SUNOS4, or IRIX4
- */
- if ((fhp[4] != 0) && (fhp[5] == 0) &&
- (fhp[8] == 12) && (fhp[9] == 0)) {
- /* seems to be DECOSF, with minor == 0 */
- fhtype = FHT_DECOSF;
- }
- else {
- /* could be SUNOS4 or IRIX4 */
- /* XXX the test of fhp[5] == 8 could be wrong */
- if ((fhp[4] == 0) && (fhp[5] == 8) && (fhp[6] == 0) &&
- (fhp[7] == 0)) {
- /* looks like a length, not a file system typecode */
- fhtype = FHT_IRIX4;
- }
- else {
- /* by elimination */
- fhtype = FHT_SUNOS4;
- }
- }
- }
- }
- else {
- /*
- * bytes[0,1] != (0,0); rules out Auspex, IRIX4, SUNOS4
- * could be IRIX5, DECOSF, UCX, Ultrix, SUNOS5
- * could be AIX, HP-UX
- */
- if ((fhp[2] == 0) && (fhp[3] == 0)) {
- /*
- * bytes[2,3] == (0,0); rules out OSF, probably not UCX
- * (unless the exported device name is just one letter!),
- * could be Ultrix, IRIX5, AIX, or SUNOS5
- * might be HP-UX (depends on their values for minor devs)
- */
- if ((fhp[6] == 0) && (fhp[7] == 0)) {
fhtype = FHT_BSD44;
+#endif
}
- /*XXX we probably only need to test of these two bytes */
- else if ((fhp[21] == 0) && (fhp[23] == 0)) {
- fhtype = FHT_ULTRIX;
- }
- else {
- /* Could be SUNOS5/IRIX5, maybe AIX */
- /* XXX no obvious difference between SUNOS5 and IRIX5 */
- if (fhp[9] == 10)
- fhtype = FHT_SUNOS5;
- /* XXX what about AIX? */
- }
- }
- else {
/*
- * bytes[2,3] != (0,0); rules out Ultrix, could be
- * DECOSF, SUNOS5, IRIX5, AIX, HP-UX, or UCX
+ * This is basically a big decision tree
*/
- if ((fhp[8] == 12) && (fhp[9] == 0)) {
- fhtype = FHT_DECOSF;
- }
- else if ((fhp[8] == 0) && (fhp[9] == 10)) {
- /* could be SUNOS5/IRIX5, AIX, HP-UX */
- if ((fhp[7] == 0) && (fhp[6] == 0) &&
- (fhp[5] == 0) && (fhp[4] == 0)) {
- /* XXX is this always true of HP-UX? */
- fhtype = FHT_HPUX9;
- }
- else if (fhp[7] == 2) {
- /* This would be MNT_NFS on AIX, which is impossible */
- fhtype = FHT_SUNOS5; /* or maybe IRIX5 */
+ else if ((fhp[0] == 0) && (fhp[1] == 0)) {
+ /* bytes[0,1] == (0,0); rules out Ultrix, IRIX5, SUNOS5 */
+ /* probably rules out HP-UX, AIX unless they allow major=0 */
+ if ((fhp[2] == 0) && (fhp[3] == 0)) {
+ /* bytes[2,3] == (0,0); must be Auspex */
+ /* XXX or could be Ultrix+MASSBUS "hp" disk? */
+ fhtype = FHT_AUSPEX;
}
else {
/*
- * XXX Could be SUNOS5/IRIX5 or AIX. I don't
- * XXX see any way to disambiguate these, so
- * XXX I'm going with the more likely guess.
- * XXX Sorry, Big Blue.
+ * bytes[2,3] != (0,0); rules out Auspex, could be
+ * DECOSF, SUNOS4, or IRIX4
*/
- fhtype = FHT_SUNOS5; /* or maybe IRIX5 */
+ if ((fhp[4] != 0) && (fhp[5] == 0) &&
+ (fhp[8] == 12) && (fhp[9] == 0)) {
+ /* seems to be DECOSF, with minor == 0 */
+ fhtype = FHT_DECOSF;
+ }
+ else {
+ /* could be SUNOS4 or IRIX4 */
+ /* XXX the test of fhp[5] == 8 could be wrong */
+ if ((fhp[4] == 0) && (fhp[5] == 8) && (fhp[6] == 0) &&
+ (fhp[7] == 0)) {
+ /* looks like a length, not a file system typecode */
+ fhtype = FHT_IRIX4;
+ }
+ else {
+ /* by elimination */
+ fhtype = FHT_SUNOS4;
+ }
+ }
}
- }
+ }
else {
- if (is_UCX(fhp)) {
- fhtype = FHT_VMSUCX;
+ /*
+ * bytes[0,1] != (0,0); rules out Auspex, IRIX4, SUNOS4
+ * could be IRIX5, DECOSF, UCX, Ultrix, SUNOS5
+ * could be AIX, HP-UX
+ */
+ if ((fhp[2] == 0) && (fhp[3] == 0)) {
+ /*
+ * bytes[2,3] == (0,0); rules out OSF, probably not UCX
+ * (unless the exported device name is just one letter!),
+ * could be Ultrix, IRIX5, AIX, or SUNOS5
+ * might be HP-UX (depends on their values for minor devs)
+ */
+ if ((fhp[6] == 0) && (fhp[7] == 0)) {
+ fhtype = FHT_BSD44;
+ }
+ /*XXX we probably only need to test of these two bytes */
+ else if ((len >= 24/4) && (fhp[21] == 0) && (fhp[23] == 0)) {
+ fhtype = FHT_ULTRIX;
+ }
+ else {
+ /* Could be SUNOS5/IRIX5, maybe AIX */
+ /* XXX no obvious difference between SUNOS5 and IRIX5 */
+ if (fhp[9] == 10)
+ fhtype = FHT_SUNOS5;
+ /* XXX what about AIX? */
+ }
}
else {
- fhtype = FHT_UNKNOWN;
+ /*
+ * bytes[2,3] != (0,0); rules out Ultrix, could be
+ * DECOSF, SUNOS5, IRIX5, AIX, HP-UX, or UCX
+ */
+ if ((fhp[8] == 12) && (fhp[9] == 0)) {
+ fhtype = FHT_DECOSF;
+ }
+ else if ((fhp[8] == 0) && (fhp[9] == 10)) {
+ /* could be SUNOS5/IRIX5, AIX, HP-UX */
+ if ((fhp[7] == 0) && (fhp[6] == 0) &&
+ (fhp[5] == 0) && (fhp[4] == 0)) {
+ /* XXX is this always true of HP-UX? */
+ fhtype = FHT_HPUX9;
+ }
+ else if (fhp[7] == 2) {
+ /* This would be MNT_NFS on AIX, which is impossible */
+ fhtype = FHT_SUNOS5; /* or maybe IRIX5 */
+ }
+ else {
+ /*
+ * XXX Could be SUNOS5/IRIX5 or AIX. I don't
+ * XXX see any way to disambiguate these, so
+ * XXX I'm going with the more likely guess.
+ * XXX Sorry, Big Blue.
+ */
+ fhtype = FHT_SUNOS5; /* or maybe IRIX5 */
+ }
+ }
+ else {
+ if (is_UCX(fhp, len)) {
+ fhtype = FHT_VMSUCX;
+ }
+ else {
+ fhtype = FHT_UNKNOWN;
+ }
+ }
}
}
- }
}
/* XXX still needs to handle SUNOS3 */
@@ -268,8 +269,7 @@ int ourself; /* true if file handle was generated on this host */
fsidp->Fsid_dev.Major = fhp[6];
fsidp->fsid_code = 0;
- temp = make_uint32(fhp[12], fhp[13], fhp[14], fhp[15]);
- *inop = temp;
+ *inop = make_uint32(fhp[12], fhp[13], fhp[14], fhp[15]);
if (osnamep)
*osnamep = "Auspex";
@@ -280,8 +280,7 @@ int ourself; /* true if file handle was generated on this host */
fsidp->Fsid_dev.Major = fhp[1];
fsidp->fsid_code = 0;
- temp = make_uint32(fhp[15], fhp[14], fhp[13], fhp[12]);
- *inop = temp;
+ *inop = make_uint32(fhp[15], fhp[14], fhp[13], fhp[12]);
if (osnamep)
*osnamep = "BSD 4.4";
@@ -295,8 +294,7 @@ int ourself; /* true if file handle was generated on this host */
fsidp->Fsid_dev.Minor = temp & 0xFFFFF;
fsidp->Fsid_dev.Major = (temp>>20) & 0xFFF;
- temp = make_uint32(fhp[15], fhp[14], fhp[13], fhp[12]);
- *inop = temp;
+ *inop = make_uint32(fhp[15], fhp[14], fhp[13], fhp[12]);
if (osnamep)
*osnamep = "OSF";
break;
@@ -306,8 +304,7 @@ int ourself; /* true if file handle was generated on this host */
fsidp->Fsid_dev.Major = fhp[2];
fsidp->fsid_code = 0;
- temp = make_uint32(fhp[8], fhp[9], fhp[10], fhp[11]);
- *inop = temp;
+ *inop = make_uint32(fhp[8], fhp[9], fhp[10], fhp[11]);
if (osnamep)
*osnamep = "IRIX4";
@@ -318,8 +315,7 @@ int ourself; /* true if file handle was generated on this host */
fsidp->Fsid_dev.Major = make_uint16(fhp[0], fhp[1]);
fsidp->fsid_code = make_uint32(fhp[4], fhp[5], fhp[6], fhp[7]);
- temp = make_uint32(fhp[12], fhp[13], fhp[14], fhp[15]);
- *inop = temp;
+ *inop = make_uint32(fhp[12], fhp[13], fhp[14], fhp[15]);
if (osnamep)
*osnamep = "IRIX5";
@@ -341,8 +337,7 @@ int ourself; /* true if file handle was generated on this host */
fsidp->Fsid_dev.Major = fhp[2];
fsidp->fsid_code = make_uint32(fhp[4], fhp[5], fhp[6], fhp[7]);
- temp = make_uint32(fhp[12], fhp[13], fhp[14], fhp[15]);
- *inop = temp;
+ *inop = make_uint32(fhp[12], fhp[13], fhp[14], fhp[15]);
if (osnamep)
*osnamep = "SUNOS4";
@@ -355,8 +350,7 @@ int ourself; /* true if file handle was generated on this host */
fsidp->Fsid_dev.Minor = temp & 0x3FFFF;
fsidp->fsid_code = make_uint32(fhp[4], fhp[5], fhp[6], fhp[7]);
- temp = make_uint32(fhp[12], fhp[13], fhp[14], fhp[15]);
- *inop = temp;
+ *inop = make_uint32(fhp[12], fhp[13], fhp[14], fhp[15]);
if (osnamep)
*osnamep = "SUNOS5";
@@ -379,13 +373,13 @@ int ourself; /* true if file handle was generated on this host */
if (sizeof(*fsidp) > 14)
memset((char *)fsidp, 0, sizeof(*fsidp));
/* just use the whole thing */
- memcpy((char *)fsidp, (char *)fh, 14);
+ memcpy((char *)fsidp, (const char *)fh, 14);
}
else {
- u_int32_t tempa[4]; /* at least 16 bytes, maybe more */
+ uint32_t tempa[4]; /* at least 16 bytes, maybe more */
memset((char *)tempa, 0, sizeof(tempa));
- memcpy((char *)tempa, (char *)fh, 14); /* ensure alignment */
+ memcpy((char *)tempa, (const char *)fh, 14); /* ensure alignment */
fsidp->Fsid_dev.Minor = tempa[0] + (tempa[1]<<1);
fsidp->Fsid_dev.Major = tempa[2] + (tempa[3]<<1);
fsidp->fsid_code = 0;
@@ -396,7 +390,7 @@ int ourself; /* true if file handle was generated on this host */
/* Caller must save (and null-terminate?) this value */
if (fsnamep)
- *fsnamep = (char *)&(fhp[1]);
+ *fsnamep = (const char *)&(fhp[1]);
if (osnamep)
*osnamep = "VMS";
@@ -407,8 +401,7 @@ int ourself; /* true if file handle was generated on this host */
fsidp->Fsid_dev.Major = make_uint16(fhp[0], fhp[1]);
fsidp->fsid_code = make_uint32(fhp[4], fhp[5], fhp[6], fhp[7]);
- temp = make_uint32(fhp[12], fhp[13], fhp[14], fhp[15]);
- *inop = temp;
+ *inop = make_uint32(fhp[12], fhp[13], fhp[14], fhp[15]);
if (osnamep)
*osnamep = "AIX32";
@@ -420,8 +413,7 @@ int ourself; /* true if file handle was generated on this host */
fsidp->Fsid_dev.Minor = temp;
fsidp->fsid_code = make_uint32(fhp[4], fhp[5], fhp[6], fhp[7]);
- temp = make_uint32(fhp[12], fhp[13], fhp[14], fhp[15]);
- *inop = temp;
+ *inop = make_uint32(fhp[12], fhp[13], fhp[14], fhp[15]);
if (osnamep)
*osnamep = "HPUX9";
@@ -430,13 +422,14 @@ int ourself; /* true if file handle was generated on this host */
case FHT_UNKNOWN:
#ifdef DEBUG
/* XXX debugging */
- for (i = 0; i < 32; i++)
+ for (i = 0; i < len*4; i++)
(void)fprintf(stderr, "%x.", fhp[i]);
(void)fprintf(stderr, "\n");
#endif
/* Save the actual handle, so it can be display with -u */
- for (i = 0; i < 32; i++)
+ for (i = 0; i < len*4 && i*2 < sizeof(fsidp->Opaque_Handle) - 1; i++)
(void)snprintf(&(fsidp->Opaque_Handle[i*2]), 3, "%.2X", fhp[i]);
+ fsidp->Opaque_Handle[i*2] = '\0';
/* XXX for now, give "bogus" values to aid debugging */
fsidp->fsid_code = 0;
@@ -463,14 +456,20 @@ int ourself; /* true if file handle was generated on this host */
* (3) followed by string of nulls
*/
static int
-is_UCX(fhp)
-const unsigned char *fhp;
+is_UCX(const unsigned char *fhp, u_int len)
{
- register int i;
+ register u_int i;
int seen_null = 0;
+ /*
+ * Require at least 28 bytes of file handle; it's variable-length
+ * in NFSv3. "len" is in units of 32-bit words, not bytes.
+ */
+ if (len < 28/4)
+ return(0);
+
for (i = 1; i < 14; i++) {
- if (isprint(fhp[i])) {
+ if (ND_ISPRINT(fhp[i])) {
if (seen_null)
return(0);
else
@@ -486,3 +485,6 @@ const unsigned char *fhp;
return(1);
}
+#ifdef __rtems__
+#include "rtems-bsd-tcpdump-parsenfsfh-data.h"
+#endif /* __rtems__ */
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-19 04:02:29 +0000