/*
- * $Id: fork.c,v 1.35 2002-09-04 17:28:08 didg Exp $
+ * $Id: fork.c,v 1.40 2002-11-14 17:13:45 srittau Exp $
*
* Copyright (c) 1990,1993 Regents of The University of Michigan.
* All Rights Reserved. See COPYRIGHT.
#include "volume.h"
#define BYTELOCK_MAX 0x7FFFFFFFU
+#define BYTELOCK_MAXL 0x7FFFFFFFFFFFFFFFULL
struct ofork *writtenfork;
extern int getmetadata(struct vol *vol,
int *buflen;
const u_int16_t attrbits;
{
-#ifndef USE_LASTDID
- struct stat lst, *lstp;
-#endif /* !USE_LASTDID */
struct stat st;
char *upath;
- u_int32_t aint;
struct adouble *adp;
struct dir *dir;
struct vol *vol;
+
+ /* can only get the length of the opened fork */
+ if ( ( (bitmap & ((1<<FILPBIT_DFLEN) | (1<<FILPBIT_EXTDFLEN)))
+ && (ofork->of_flags & AFPFORK_RSRC))
+ ||
+ ( (bitmap & ((1<<FILPBIT_RFLEN) | (1<<FILPBIT_EXTRFLEN)))
+ && (ofork->of_flags & AFPFORK_DATA))) {
+ return( AFPERR_BITMAP );
+ }
+
if ( ad_hfileno( ofork->of_ad ) == -1 ) {
adp = NULL;
} else {
- aint = ad_getentrylen( ofork->of_ad, ADEID_RFORK );
- if ( ad_refresh( ofork->of_ad ) < 0 ) {
- LOG(log_error, logtype_afpd, "getforkparams: ad_refresh: %s", strerror(errno) );
- return( AFPERR_PARAM );
- }
- /* See afp_closefork() for why this is bad */
- ad_setentrylen( ofork->of_ad, ADEID_RFORK, aint );
adp = ofork->of_ad;
}
- /* can only get the length of the opened fork */
- if (((bitmap & (1<<FILPBIT_DFLEN)) && (ofork->of_flags & AFPFORK_RSRC)) ||
- ((bitmap & (1<<FILPBIT_RFLEN)) && (ofork->of_flags & AFPFORK_DATA))) {
- return( AFPERR_BITMAP );
- }
-
vol = ofork->of_vol;
dir = ofork->of_dir;
- if ( bitmap & ( 1<<FILPBIT_DFLEN | 1<<FILPBIT_FNUM |
- (1 << FILPBIT_CDATE) | (1 << FILPBIT_MDATE) |
- (1 << FILPBIT_BDATE))) {
+ if ( bitmap & ( (1<<FILPBIT_DFLEN) | (1<<FILPBIT_EXTDFLEN) |
+ (1<<FILPBIT_FNUM) | (1 << FILPBIT_CDATE) |
+ (1 << FILPBIT_MDATE) | (1 << FILPBIT_BDATE))) {
if ( ad_dfileno( ofork->of_ad ) == -1 ) {
upath = mtoupath(vol, ofork->of_name);
if (movecwd(vol, dir) < 0)
return ad_testlock(adp, eid, what);
}
-/* --------------------------
- a lot of races, some can be remove. but I try first to get the semantic right
-*/
-#ifdef USE_FLOCK_LOCKS
-#error sorry, for now configure --with-flock-locks is broken...
-#endif
-
static int afp_setmode(struct adouble *adp, int eid, int access, int ofrefnum)
{
int ret;
u_int32_t did;
u_int16_t vid, bitmap, access, ofrefnum, attrbits = 0;
char fork, *path, *upath;
- struct stat st;
+ struct stat *st;
u_int16_t bshort;
-
+ struct path *s_path;
+
ibuf++;
fork = *ibuf++;
memcpy(&vid, ibuf, sizeof( vid ));
memcpy(&did, ibuf, sizeof( did ));
ibuf += sizeof( int );
- if (( dir = dirsearch( vol, did )) == NULL ) {
+ if (( dir = dirlookup( vol, did )) == NULL ) {
return( AFPERR_NOOBJ );
}
return AFPERR_VLOCK;
}
- if (( path = cname( vol, dir, &ibuf )) == NULL ) {
- return( AFPERR_NOOBJ );
+ if (( s_path = cname( vol, dir, &ibuf )) == NULL ) {
+ return AFPERR_NOOBJ;
}
- if ( fork == OPENFORK_DATA ) {
- eid = ADEID_DFORK;
- adflags = ADFLAGS_DF|ADFLAGS_HF;
- } else {
- eid = ADEID_RFORK;
- adflags = ADFLAGS_HF;
+ if (*s_path->m_name == '\0') {
+ /* it's a dir ! */
+ return AFPERR_BADTYPE;
}
- upath = mtoupath(vol, path);
+ /* stat() data fork st is set because it's not a dir */
+ switch ( s_path->st_errno ) {
+ case 0:
+ break;
+ case ENOENT:
+ return AFPERR_NOOBJ;
+ case EACCES:
+ return (access & OPENACC_WR) ? AFPERR_LOCK : AFPERR_ACCESS;
+ default:
+ LOG(log_error, logtype_afpd, "afp_openfork: ad_open: %s", strerror(errno) );
+ return AFPERR_PARAM;
+ }
+ /* FIXME should we check first ? */
+ upath = s_path->u_name;
if (check_access(upath, access ) < 0) {
return AFPERR_ACCESS;
}
- /* stat() data fork */
- if (stat(upath, &st) < 0) {
- switch ( errno ) {
- case ENOENT:
- return AFPERR_NOOBJ;
- case EACCES:
- return (access & OPENACC_WR) ? AFPERR_LOCK : AFPERR_ACCESS;
- default:
- LOG(log_error, logtype_afpd, "afp_openfork: ad_open: %s", strerror(errno) );
- return AFPERR_PARAM;
- }
- }
-
+ st = &s_path->st;
/* XXX: this probably isn't the best way to do this. the already
open bits should really be set if the fork is opened by any
program, not just this one. however, that's problematic to do
ad_open so that we can keep file locks together.
FIXME: add the fork we are opening?
*/
- if ((opened = of_findname(vol, curdir, upath, &st))) {
+ if ((opened = of_findname(s_path))) {
attrbits = ((opened->of_ad->ad_df.adf_refcount > 0) ? ATTRBIT_DOPEN : 0);
attrbits |= ((opened->of_ad->ad_hf.adf_refcount > opened->of_ad->ad_df.adf_refcount)? ATTRBIT_ROPEN : 0);
adsame = opened->of_ad;
}
+ if ( fork == OPENFORK_DATA ) {
+ eid = ADEID_DFORK;
+ adflags = ADFLAGS_DF|ADFLAGS_HF;
+ } else {
+ eid = ADEID_RFORK;
+ adflags = ADFLAGS_HF;
+ }
+
+ path = s_path->m_name;
if (( ofork = of_alloc(vol, curdir, path, &ofrefnum, eid,
- adsame, &st)) == NULL ) {
+ adsame, st)) == NULL ) {
return( AFPERR_NFILE );
}
*/
#define ENDBIT(a) ((a) & 0x80)
#define UNLOCKBIT(a) ((a) & 0x01)
-int afp_bytelock(obj, ibuf, ibuflen, rbuf, rbuflen )
-AFPObj *obj;
+
+static off_t get_off_t(ibuf, is64)
+char **ibuf;
+int is64;
+{
+ u_int32_t temp;
+ off_t ret;
+
+ memcpy(&temp, *ibuf, sizeof( temp ));
+ ret = ntohl(temp); /* ntohl is unsigned */
+ *ibuf += sizeof(temp);
+
+ if (is64) {
+ memcpy(&temp, *ibuf, sizeof( temp ));
+ *ibuf += sizeof(temp);
+ ret = ntohl(temp)| (ret << 32);
+ }
+ return ret;
+}
+
+/* ---------------------- */
+static int set_off_t(offset, rbuf, is64)
+off_t offset;
+char *rbuf;
+int is64;
+{
+ u_int32_t temp;
+ int ret;
+
+ ret = 0;
+ if (is64) {
+ temp = htonl(offset >> 32);
+ memcpy(rbuf, &temp, sizeof( temp ));
+ rbuf += sizeof(temp);
+ ret = sizeof( temp );
+ offset &= 0xffffffff;
+ }
+ temp = htonl(offset);
+ memcpy(rbuf, &temp, sizeof( temp ));
+ ret += sizeof( temp );
+
+ return ret;
+}
+
+/* ---------------------- */
+static int byte_lock(obj, ibuf, ibuflen, rbuf, rbuflen, is64 )
+AFPObj *obj;
char *ibuf, *rbuf;
-int ibuflen, *rbuflen;
+int ibuflen, *rbuflen;
+int is64;
{
struct ofork *ofork;
- int32_t offset, length;
+ off_t offset, length;
int eid;
u_int16_t ofrefnum;
u_int8_t flags;
} else
return AFPERR_PARAM;
- memcpy(&offset, ibuf, sizeof( offset ));
- offset = ntohl(offset);
- ibuf += sizeof(offset);
-
- memcpy(&length, ibuf, sizeof( length ));
- length = ntohl(length);
- if (length == 0xFFFFFFFF)
- length = BYTELOCK_MAX;
- else if (length <= 0) {
- return AFPERR_PARAM;
- } else if ((length >= AD_FILELOCK_BASE) &&
- (ad_hfileno(ofork->of_ad) == -1))
- return AFPERR_LOCK;
+ offset = get_off_t(&ibuf, is64);
+ length = get_off_t(&ibuf, is64);
+ if (is64) {
+ if (length == -1)
+ length = BYTELOCK_MAXL;
+ else if (length <= 0) {
+ return AFPERR_PARAM;
+ } else if ((length >= AD_FILELOCK_BASE) &&
+ (ad_hfileno(ofork->of_ad) == -1)) {
+ return AFPERR_LOCK;
+ }
+ }
+ else {
+ if (length == 0xFFFFFFFF)
+ length = BYTELOCK_MAX;
+ else if (!length || (length & (1 << 31))) {
+ return AFPERR_PARAM;
+ } else if ((length >= AD_FILELOCK_BASE) &&
+ (ad_hfileno(ofork->of_ad) == -1)) {
+ return AFPERR_LOCK;
+ }
+ }
+
if (ENDBIT(flags))
offset += ad_size(ofork->of_ad, eid);
break;
}
}
-
- offset = htonl(offset);
- memcpy(rbuf, &offset, sizeof( offset ));
- *rbuflen = sizeof( offset );
+ *rbuflen = set_off_t (offset, rbuf, is64);
return( AFP_OK );
}
-#undef UNLOCKBIT
+/* --------------------------- */
+int afp_bytelock(obj, ibuf, ibuflen, rbuf, rbuflen )
+AFPObj *obj;
+char *ibuf, *rbuf;
+int ibuflen, *rbuflen;
+{
+ return byte_lock ( obj, ibuf, ibuflen, rbuf, rbuflen , 0);
+}
+
+/* --------------------------- */
+int afp_bytelock_ext(obj, ibuf, ibuflen, rbuf, rbuflen )
+AFPObj *obj;
+char *ibuf, *rbuf;
+int ibuflen, *rbuflen;
+{
+ return byte_lock ( obj, ibuf, ibuflen, rbuf, rbuflen , 1);
+}
+#undef UNLOCKBIT
+
+/* --------------------------- */
static __inline__ int crlf( of )
struct ofork *of;
{
*
* with dsi, should we check that reqcount < server quantum?
*/
-int afp_read(obj, ibuf, ibuflen, rbuf, rbuflen)
+static int read_fork(obj, ibuf, ibuflen, rbuf, rbuflen, is64)
AFPObj *obj;
char *ibuf, *rbuf;
int ibuflen, *rbuflen;
+int is64;
{
struct ofork *ofork;
off_t size;
- int32_t offset, saveoff, reqcount, savereqcount;
+ off_t offset, saveoff, reqcount, savereqcount;
int cc, err, eid, xlate = 0;
u_int16_t ofrefnum;
u_char nlmask, nlchar;
-
+
ibuf += 2;
memcpy(&ofrefnum, ibuf, sizeof( ofrefnum ));
ibuf += sizeof( u_short );
err = AFPERR_ACCESS;
goto afp_read_err;
}
+ offset = get_off_t(&ibuf, is64);
+ reqcount = get_off_t(&ibuf, is64);
- memcpy(&offset, ibuf, sizeof( offset ));
- offset = ntohl( offset );
- ibuf += sizeof( offset );
- memcpy(&reqcount, ibuf, sizeof( reqcount ));
- reqcount = ntohl( reqcount );
- ibuf += sizeof( reqcount );
-
- nlmask = *ibuf++;
- nlchar = *ibuf++;
-
+ if (is64) {
+ nlmask = nlchar = 0;
+ }
+ else {
+ nlmask = *ibuf++;
+ nlchar = *ibuf++;
+ }
/* if we wanted to be picky, we could add in the following
* bit: if (afp_version == 11 && !(nlmask == 0xFF || !nlmask))
*/
if (obj->options.flags & OPTION_DEBUG) {
printf( "(read) reply: %d/%d, %d\n", *rbuflen,
- reqcount, dsi->clientID);
+ (int) reqcount, dsi->clientID);
bprint(rbuf, *rbuflen);
}
/* subtract off the offset */
return err;
}
+/* ---------------------- */
+int afp_read(obj, ibuf, ibuflen, rbuf, rbuflen)
+AFPObj *obj;
+char *ibuf, *rbuf;
+int ibuflen, *rbuflen;
+{
+ return read_fork(obj, ibuf, ibuflen, rbuf, rbuflen, 0);
+}
+
+/* ---------------------- */
+int afp_read_ext(obj, ibuf, ibuflen, rbuf, rbuflen)
+AFPObj *obj;
+char *ibuf, *rbuf;
+int ibuflen, *rbuflen;
+{
+ return read_fork(obj, ibuf, ibuflen, rbuf, rbuflen, 1);
+}
+
+/* ---------------------- */
int afp_flush(obj, ibuf, ibuflen, rbuf, rbuflen )
AFPObj *obj;
char *ibuf, *rbuf;
struct ofork *ofork;
{
struct timeval tv;
- int len, err = 0, doflush = 0;
+
+ int err = 0, doflush = 0;
if ( ad_dfileno( ofork->of_ad ) != -1 &&
fsync( ad_dfileno( ofork->of_ad )) < 0 ) {
err = -1;
}
- if ( ad_hfileno( ofork->of_ad ) != -1 ) {
+ if ( ad_hfileno( ofork->of_ad ) != -1 &&
+ (ofork->of_flags & AFPFORK_RSRC)) {
/* read in the rfork length */
- len = ad_getentrylen(ofork->of_ad, ADEID_RFORK);
ad_refresh(ofork->of_ad);
/* set the date if we're dirty */
- if ((ofork->of_flags & AFPFORK_DIRTY) &&
- (gettimeofday(&tv, NULL) == 0)) {
+ if ((ofork->of_flags & AFPFORK_DIRTY) && !gettimeofday(&tv, NULL)) {
ad_setdate(ofork->of_ad, AD_DATE_MODIFY|AD_DATE_UNIX, tv.tv_sec);
ofork->of_flags &= ~AFPFORK_DIRTY;
doflush++;
}
- /* if we're actually flushing this fork, make sure to set the
- * length. otherwise, just use the stored length */
- if ((ofork->of_flags & AFPFORK_RSRC) &&
- (len != ad_getentrylen(ofork->of_ad, ADEID_RFORK))) {
- ad_setentrylen(ofork->of_ad, ADEID_RFORK, len);
- doflush++;
- }
-
-
- /* flush the header (if it is a resource fork) */
- if (ofork->of_flags & AFPFORK_RSRC)
- if (doflush && (ad_flush(ofork->of_ad, ADFLAGS_HF) < 0))
+ /* flush the header */
+ if (doflush && ad_flush(ofork->of_ad, ADFLAGS_HF) < 0)
err = -1;
if (fsync( ad_hfileno( ofork->of_ad )) < 0)
{
struct ofork *ofork;
struct timeval tv;
- int adflags, aint, doflush = 0;
+ int adflags, doflush = 0;
u_int16_t ofrefnum;
*rbuflen = 0;
if ( ad_hfileno( ofork->of_ad ) != -1 ) {
adflags |= ADFLAGS_HF;
-
- aint = ad_getentrylen( ofork->of_ad, ADEID_RFORK );
- ad_refresh( ofork->of_ad );
- if ((ofork->of_flags & AFPFORK_DIRTY) &&
- (gettimeofday(&tv, NULL) == 0)) {
- ad_setdate(ofork->of_ad, AD_DATE_MODIFY | AD_DATE_UNIX,
- tv.tv_sec);
- doflush++;
- }
-
/*
* Only set the rfork's length if we're closing the rfork.
*/
- if ((ofork->of_flags & AFPFORK_RSRC) && aint !=
- ad_getentrylen( ofork->of_ad, ADEID_RFORK )) {
- ad_setentrylen( ofork->of_ad, ADEID_RFORK, aint );
- doflush++;
- }
- if ( doflush ) {
- ad_flush( ofork->of_ad, adflags );
+ if ((ofork->of_flags & AFPFORK_RSRC)) {
+ ad_refresh( ofork->of_ad );
+ if ((ofork->of_flags & AFPFORK_DIRTY) &&
+ !gettimeofday(&tv, NULL)) {
+ ad_setdate(ofork->of_ad, AD_DATE_MODIFY | AD_DATE_UNIX,tv.tv_sec);
+ doflush++;
+ }
+ if ( doflush ) {
+ ad_flush( ofork->of_ad, adflags );
+ }
}
}
/* FPWrite. NOTE: on an error, we always use afp_write_err as
* the client may have sent us a bunch of data that's not reflected
* in reqcount et al. */
-int afp_write(obj, ibuf, ibuflen, rbuf, rbuflen)
+static int write_fork(obj, ibuf, ibuflen, rbuf, rbuflen, is64)
AFPObj *obj;
char *ibuf, *rbuf;
int ibuflen, *rbuflen;
+int is64;
{
struct ofork *ofork;
- int32_t offset, saveoff, reqcount;
+ off_t offset, saveoff, reqcount;
int endflag, eid, xlate = 0, err = AFP_OK;
u_int16_t ofrefnum;
ssize_t cc;
ibuf++;
memcpy(&ofrefnum, ibuf, sizeof( ofrefnum ));
ibuf += sizeof( ofrefnum );
- memcpy(&offset, ibuf, sizeof( offset ));
- offset = ntohl( offset );
- ibuf += sizeof( offset );
- memcpy(&reqcount, ibuf, sizeof( reqcount ));
- reqcount = ntohl( reqcount );
- ibuf += sizeof( reqcount );
+
+ offset = get_off_t(&ibuf, is64);
+ reqcount = get_off_t(&ibuf, is64);
if (( ofork = of_find( ofrefnum )) == NULL ) {
LOG(log_error, logtype_afpd, "afp_write: of_find");
if (!reqcount) { /* handle request counts of 0 */
err = AFP_OK;
- offset = htonl(offset);
- memcpy(rbuf, &offset, sizeof(offset));
+ *rbuflen = set_off_t (offset, rbuf, is64);
goto afp_write_err;
}
if ( ad_hfileno( ofork->of_ad ) != -1 )
ofork->of_flags |= AFPFORK_DIRTY;
- offset = htonl( offset );
-#if defined(__GNUC__) && defined(HAVE_GCC_MEMCPY_BUG)
- bcopy(&offset, rbuf, sizeof(offset));
-#else /* __GNUC__ && HAVE_GCC_MEMCPY_BUG */
- memcpy(rbuf, &offset, sizeof(offset));
-#endif /* __GNUC__ && HAVE_GCC_MEMCPY_BUG */
- *rbuflen = sizeof(offset);
+ *rbuflen = set_off_t (offset, rbuf, is64);
return( AFP_OK );
afp_write_err:
return err;
}
+/* ---------------------------- */
+int afp_write(obj, ibuf, ibuflen, rbuf, rbuflen)
+AFPObj *obj;
+char *ibuf, *rbuf;
+int ibuflen, *rbuflen;
+{
+ return write_fork(obj, ibuf, ibuflen, rbuf, rbuflen, 0);
+}
+
+/* ----------------------------
+ * FIXME need to deal with SIGXFSZ signal
+*/
+int afp_write_ext(obj, ibuf, ibuflen, rbuf, rbuflen)
+AFPObj *obj;
+char *ibuf, *rbuf;
+int ibuflen, *rbuflen;
+{
+ return write_fork(obj, ibuf, ibuflen, rbuf, rbuflen, 1);
+}
+/* ---------------------------- */
int afp_getforkparams(obj, ibuf, ibuflen, rbuf, rbuflen )
AFPObj *obj;
char *ibuf, *rbuf;
attrbits = ((ofork->of_ad->ad_df.adf_refcount > 0) ? ATTRBIT_DOPEN : 0);
attrbits |= ((ofork->of_ad->ad_hf.adf_refcount > ofork->of_ad->ad_df.adf_refcount) ? ATTRBIT_ROPEN : 0);
+ if ( ad_hfileno( ofork->of_ad ) != -1 ) {
+ if ( ad_refresh( ofork->of_ad ) < 0 ) {
+ LOG(log_error, logtype_afpd, "getforkparams: ad_refresh: %s", strerror(errno) );
+ return( AFPERR_PARAM );
+ }
+ }
+
if (( ret = getforkparams( ofork, bitmap,
rbuf + sizeof( u_short ), &buflen, attrbits )) != AFP_OK ) {
return( ret );
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