return 0;
}
-static int fork_setmode(struct adouble *adp, int eid, int access, int ofrefnum)
+static int fork_setmode(const AFPObj *obj, struct adouble *adp, int eid, int access, int ofrefnum)
{
int ret;
int readset;
int denyreadset;
int denywriteset;
+#ifdef HAVE_FSHARE_T
+ fshare_t shmd;
+
+ if (obj->options.flags & OPTION_SHARE_RESERV) {
+ shmd.f_access = (access & OPENACC_RD ? F_RDACC : 0) | (access & OPENACC_WR ? F_WRACC : 0);
+ if (shmd.f_access == 0)
+ /* we must give an access mode, otherwise fcntl will complain */
+ shmd.f_access = F_RDACC;
+ shmd.f_deny = (access & OPENACC_DRD ? F_RDDNY : F_NODNY) | (access & OPENACC_DWR) ? F_WRDNY : 0;
+ shmd.f_id = ofrefnum;
+
+ int fd = (eid == ADEID_DFORK) ? ad_data_fileno(adp) : ad_reso_fileno(adp);
+
+ if (fd != -1 && fd != AD_SYMLINK && fcntl(fd, F_SHARE, &shmd) != 0) {
+ LOG(log_debug, logtype_afpd, "fork_setmode: fcntl: %s", strerror(errno));
+ errno = EACCES;
+ return -1;
+ }
+ }
+#endif
+
if (! (access & (OPENACC_WR | OPENACC_RD | OPENACC_DWR | OPENACC_DRD))) {
return ad_lock(adp, eid, ADLOCK_RD | ADLOCK_FILELOCK, AD_FILELOCK_OPEN_NONE, 1, ofrefnum);
}
ad_getattr(ofork->of_ad, &bshort);
if ((bshort & htons(ATTRBIT_NOWRITE)) && (access & OPENACC_WR)) {
ad_close( ofork->of_ad, adflags | ADFLAGS_SETSHRMD);
- of_dealloc( ofork );
+ of_dealloc(ofork);
ofrefnum = 0;
memcpy(rbuf, &ofrefnum, sizeof(ofrefnum));
return(AFPERR_OLOCK);
if ((eid == ADEID_DFORK)
|| (ad_reso_fileno(ofork->of_ad) != -1)
|| (ofork->of_ad->ad_vers == AD_VERSION_EA)) {
- ret = fork_setmode(ofork->of_ad, eid, access, ofrefnum);
+ ret = fork_setmode(obj, ofork->of_ad, eid, access, ofrefnum);
/* can we access the fork? */
if (ret < 0) {
ofork->of_flags |= AFPFORK_ERROR;
ret = errno;
ad_close( ofork->of_ad, adflags | ADFLAGS_SETSHRMD);
- of_dealloc( ofork );
+ of_dealloc(ofork);
switch (ret) {
case EAGAIN: /* return data anyway */
case EACCES:
return( AFP_OK );
openfork_err:
- of_dealloc( ofork );
+ of_dealloc(ofork);
if (errno == EACCES)
return (access & OPENACC_WR) ? AFPERR_LOCK : AFPERR_ACCESS;
return ret;
#undef UNLOCKBIT
-static ssize_t read_file(struct ofork *ofork, int eid,
- off_t offset, u_char nlmask,
- u_char nlchar, char *rbuf,
- size_t *rbuflen)
+/*!
+ * Read *rbuflen bytes from fork at offset
+ *
+ * @param ofork (r) fork handle
+ * @param eid (r) data fork or ressource fork entry id
+ * @param offset (r) offset
+ * @param rbuf (r) data buffer
+ * @param rbuflen (rw) in: number of bytes to read, out: bytes read
+ *
+ * @return AFP status code
+ */
+static int read_file(const struct ofork *ofork, int eid, off_t offset, char *rbuf, size_t *rbuflen)
{
ssize_t cc;
int eof = 0;
*rbuflen = 0;
return( AFPERR_PARAM );
}
- if ( (size_t)cc < *rbuflen ) {
- eof = 1;
- }
-
- /*
- * Do Newline check.
- */
- if ( nlmask != 0 ) {
- for ( p = rbuf, q = p + cc; p < q; ) {
- if (( *p++ & nlmask ) == nlchar ) {
- break;
- }
- }
- if ( p != q ) {
- cc = p - rbuf;
- eof = 0;
- }
- }
-
*rbuflen = cc;
- if ( eof ) {
- return( AFPERR_EOF );
- }
+
+ if ((size_t)cc < *rbuflen)
+ return AFPERR_EOF;
return AFP_OK;
}
-/* -----------------------------
- * with ddp, afp_read can return fewer bytes than in reqcount
- * so return EOF only if read actually past end of file not
- * if offset +reqcount > size of file
- * e.g.:
- * getfork size ==> 10430
- * read fork offset 0 size 10752 ???? ==> 4264 bytes (without EOF)
- * read fork offset 4264 size 6128 ==> 4264 (without EOF)
- * read fork offset 9248 size 1508 ==> 1182 (EOF)
- * 10752 is a bug in Mac 7.5.x finder
- *
- * with dsi, should we check that reqcount < server quantum?
- */
static int read_fork(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen, int is64)
{
- struct ofork *ofork;
- off_t offset, saveoff, reqcount, savereqcount;
- ssize_t cc, err;
- int eid;
- uint16_t ofrefnum;
- u_char nlmask, nlchar;
+ DSI *dsi = obj->dsi;
+ struct ofork *ofork;
+ off_t offset, saveoff, reqcount, savereqcount, size;
+ ssize_t cc, err;
+ int eid;
+ uint16_t ofrefnum;
+
+ /* we break the AFP spec here by not supporting nlmask and nlchar anymore */
ibuf += 2;
memcpy(&ofrefnum, ibuf, sizeof( ofrefnum ));
err = AFPERR_ACCESS;
goto afp_read_err;
}
- offset = get_off_t(&ibuf, is64);
- reqcount = get_off_t(&ibuf, is64);
-
- LOG(log_debug, logtype_afpd,
- "afp_read(off: %" PRIu64 ", size: %" PRIu64 ", fork: %s)", offset, reqcount,
- (ofork->of_flags & AFPFORK_DATA) ? "d" : "r");
-
- 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 (reqcount < 0 || offset < 0) {
- err = AFPERR_PARAM;
- goto afp_read_err;
- }
if ( ofork->of_flags & AFPFORK_DATA) {
eid = ADEID_DFORK;
goto afp_read_err;
}
+ offset = get_off_t(&ibuf, is64);
+ reqcount = get_off_t(&ibuf, is64);
+
/* zero request count */
err = AFP_OK;
if (!reqcount) {
goto afp_read_err;
}
- LOG(log_debug, logtype_afpd, "afp_read(name: \"%s\", offset: %jd, reqcount: %jd)",
- of_name(ofork), (intmax_t)offset, (intmax_t)reqcount);
+ /* reqcount isn't always truthful. we need to deal with that. */
+ size = ad_size(ofork->of_ad, eid);
+
+ LOG(log_debug, logtype_afpd,
+ "afp_read(off: %" PRIu64 ", len: %" PRIu64 ", fork: %s, size: %" PRIu64 ")",
+ offset, reqcount, (ofork->of_flags & AFPFORK_DATA) ? "d" : "r", size);
+
+ if (offset > size) {
+ err = AFPERR_EOF;
+ goto afp_read_err;
+ }
+
+ /* subtract off the offset */
+ if (reqcount + offset > size) {
+ reqcount = size - offset;
+ err = AFPERR_EOF;
+ }
savereqcount = reqcount;
saveoff = offset;
- if (ad_tmplock(ofork->of_ad, eid, ADLOCK_RD, saveoff, savereqcount,ofork->of_refnum) < 0) {
- err = AFPERR_LOCK;
+
+ LOG(log_debug, logtype_afpd,
+ "afp_read(off: %" PRIu64 ", len: %" PRIu64 ", fork: %s)",
+ offset, reqcount, (ofork->of_flags & AFPFORK_DATA) ? "d" : "r");
+
+ if (reqcount < 0 || offset < 0) {
+ err = AFPERR_PARAM;
goto afp_read_err;
}
+ LOG(log_debug, logtype_afpd, "afp_read(name: \"%s\", offset: %jd, reqcount: %jd)",
+ of_name(ofork), (intmax_t)offset, (intmax_t)reqcount);
+
+ if (obj->options.flags & OPTION_AFP_READ_LOCK) {
+ if (ad_tmplock(ofork->of_ad, eid, ADLOCK_RD, offset, reqcount, ofork->of_refnum) < 0) {
+ err = AFPERR_LOCK;
+ goto afp_read_err;
+ }
+ }
+
+#ifdef WITH_SENDFILE
+ if (!(eid == ADEID_DFORK && ad_data_fileno(ofork->of_ad) == AD_SYMLINK) &&
+ !(obj->options.flags & OPTION_NOSENDFILE)) {
+ int fd = ad_readfile_init(ofork->of_ad, eid, &offset, 0);
+ if (dsi_stream_read_file(dsi, fd, offset, reqcount, err) < 0) {
+ LOG(log_error, logtype_afpd, "afp_read(%s): ad_readfile: %s",
+ of_name(ofork), strerror(errno));
+ goto afp_read_exit;
+ }
+ dsi_readdone(dsi);
+ goto afp_read_done;
+ }
+#endif
+
*rbuflen = MIN(reqcount, *rbuflen);
- LOG(log_debug, logtype_afpd, "afp_read(name: \"%s\", offset: %jd, reqcount: %jd): reading %jd bytes from file",
- of_name(ofork), (intmax_t)offset, (intmax_t)reqcount, (intmax_t)*rbuflen);
- err = read_file(ofork, eid, offset, nlmask, nlchar, rbuf, rbuflen);
+ err = read_file(ofork, eid, offset, rbuf, rbuflen);
if (err < 0)
goto afp_read_done;
- LOG(log_debug, logtype_afpd, "afp_read(name: \"%s\", offset: %jd, reqcount: %jd): got %jd bytes from file",
+
+ LOG(log_debug, logtype_afpd,
+ "afp_read(name: \"%s\", offset: %jd, reqcount: %jd): got %jd bytes from file",
of_name(ofork), (intmax_t)offset, (intmax_t)reqcount, (intmax_t)*rbuflen);
- /* dsi can stream requests. we can only do this if we're not checking
- * for an end-of-line character. oh well. */
- if ((*rbuflen < reqcount) && !nlmask) {
- DSI *dsi = obj->dsi;
- off_t size;
+ offset += *rbuflen;
- /* reqcount isn't always truthful. we need to deal with that. */
- size = ad_size(ofork->of_ad, eid);
+ /*
+ * dsi_readinit() returns size of next read buffer. by this point,
+ * we know that we're sending some data. if we fail, something
+ * horrible happened.
+ */
+ if ((cc = dsi_readinit(dsi, rbuf, *rbuflen, reqcount, err)) < 0)
+ goto afp_read_exit;
+ *rbuflen = cc;
- /* subtract off the offset */
- size -= offset;
- if (reqcount > size) {
- reqcount = size;
- err = AFPERR_EOF;
- }
+ while (*rbuflen > 0) {
+ cc = read_file(ofork, eid, offset, rbuf, rbuflen);
+ if (cc < 0)
+ goto afp_read_exit;
offset += *rbuflen;
-
- /* dsi_readinit() returns size of next read buffer. by this point,
- * we know that we're sending some data. if we fail, something
- * horrible happened. */
- if ((cc = dsi_readinit(dsi, rbuf, *rbuflen, reqcount, err)) < 0)
+ /* dsi_read() also returns buffer size of next allocation */
+ cc = dsi_read(dsi, rbuf, *rbuflen); /* send it off */
+ if (cc < 0)
goto afp_read_exit;
*rbuflen = cc;
- /* due to the nature of afp packets, we have to exit if we get
- an error. we can't do this with translation on. */
-#ifdef WITH_SENDFILE
- if (!(obj->options.flags & OPTION_NOSENDFILE)) {
- if (dsi_stream_read_file(dsi,
- ad_readfile_init(ofork->of_ad, eid, &offset, 0),
- offset,
- dsi->datasize) < 0) {
- switch (errno) {
- case EINVAL:
- case ENOSYS:
- goto afp_read_loop;
- default:
- LOG(log_error, logtype_afpd, "afp_read(%s): ad_readfile: %s", of_name(ofork), strerror(errno));
- goto afp_read_exit;
- }
- }
-
- dsi_readdone(dsi);
- goto afp_read_done;
- }
- afp_read_loop:
-#endif
-
- /* fill up our buffer. */
- while (*rbuflen > 0) {
- cc = read_file(ofork, eid, offset, nlmask, nlchar, rbuf,rbuflen);
- if (cc < 0)
- goto afp_read_exit;
-
- offset += *rbuflen;
- /* dsi_read() also returns buffer size of next allocation */
- cc = dsi_read(dsi, rbuf, *rbuflen); /* send it off */
- if (cc < 0)
- goto afp_read_exit;
- *rbuflen = cc;
- }
- dsi_readdone(dsi);
- goto afp_read_done;
-
- afp_read_exit:
- LOG(log_error, logtype_afpd, "afp_read(%s): %s", of_name(ofork), strerror(errno));
- dsi_readdone(dsi);
- ad_tmplock(ofork->of_ad, eid, ADLOCK_CLR, saveoff, savereqcount,ofork->of_refnum);
- obj->exit(EXITERR_CLNT);
}
+ dsi_readdone(dsi);
+ goto afp_read_done;
+
+afp_read_exit:
+ LOG(log_error, logtype_afpd, "afp_read(%s): %s", of_name(ofork), strerror(errno));
+ dsi_readdone(dsi);
+ if (obj->options.flags & OPTION_AFP_READ_LOCK)
+ ad_tmplock(ofork->of_ad, eid, ADLOCK_CLR, saveoff, savereqcount, ofork->of_refnum);
+ obj->exit(EXITERR_CLNT);
afp_read_done:
- ad_tmplock(ofork->of_ad, eid, ADLOCK_CLR, saveoff, savereqcount,ofork->of_refnum);
+ if (obj->options.flags & OPTION_AFP_READ_LOCK)
+ ad_tmplock(ofork->of_ad, eid, ADLOCK_CLR, saveoff, savereqcount, ofork->of_refnum);
return err;
afp_read_err:
return( err );
}
-int afp_closefork(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
+int afp_closefork(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf _U_, size_t *rbuflen)
{
struct ofork *ofork;
uint16_t ofrefnum;
LOG(log_debug, logtype_afpd, "afp_closefork(fork: %s)",
(ofork->of_flags & AFPFORK_DATA) ? "d" : "r");
- if ( of_closefork( ofork ) < 0 ) {
+ if (of_closefork(obj, ofork) < 0 ) {
LOG(log_error, logtype_afpd, "afp_closefork(%s): of_closefork: %s", of_name(ofork), strerror(errno) );
return( AFPERR_PARAM );
}
}
-/* FPWrite. NOTE: on an error, we always use afp_write_err as
+/*
+ * 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. */
+ * in reqcount et al.
+ */
static int write_fork(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen, int is64)
{
struct ofork *ofork;
- off_t offset, saveoff, reqcount, oldsize, newsize;
+ off_t offset, saveoff, reqcount, oldsize, newsize;
int endflag, eid, err = AFP_OK;
- uint16_t ofrefnum;
- ssize_t cc;
+ uint16_t ofrefnum;
+ ssize_t cc;
+ DSI *dsi = obj->dsi;
+ char *rcvbuf = dsi->buffer;
+ size_t rcvbuflen = dsi->dsireadbuf * dsi->server_quantum;
/* figure out parameters */
ibuf++;
}
saveoff = offset;
- if (ad_tmplock(ofork->of_ad, eid, ADLOCK_WR, saveoff,
- reqcount, ofork->of_refnum) < 0) {
- err = AFPERR_LOCK;
- goto afp_write_err;
+ if (obj->options.flags & OPTION_AFP_READ_LOCK) {
+ if (ad_tmplock(ofork->of_ad, eid, ADLOCK_WR, saveoff, reqcount, ofork->of_refnum) < 0) {
+ err = AFPERR_LOCK;
+ goto afp_write_err;
+ }
}
- DSI *dsi = obj->dsi;
- /* find out what we have already and write it out. */
- cc = dsi_writeinit(dsi, rbuf, *rbuflen);
+ /* find out what we have already */
+ cc = dsi_writeinit(dsi, rcvbuf, rcvbuflen);
- if (!cc || (cc = write_file(ofork, eid, offset, rbuf, cc)) < 0) {
+ if (!cc || (cc = write_file(ofork, eid, offset, rcvbuf, cc)) < 0) {
dsi_writeflush(dsi);
*rbuflen = 0;
- ad_tmplock(ofork->of_ad, eid, ADLOCK_CLR, saveoff, reqcount, ofork->of_refnum);
+ if (obj->options.flags & OPTION_AFP_READ_LOCK)
+ ad_tmplock(ofork->of_ad, eid, ADLOCK_CLR, saveoff, reqcount, ofork->of_refnum);
return cc;
}
offset += cc;
#if 0 /*def HAVE_SENDFILE_WRITE*/
- if (!(obj->options.flags & OPTION_DEBUG)) {
- if ((cc = ad_writefile(ofork->of_ad, eid, dsi->socket,
- offset, dsi->datasize)) < 0) {
- switch (errno) {
- case EDQUOT :
- case EFBIG :
- case ENOSPC :
- cc = AFPERR_DFULL;
- break;
- default :
- LOG(log_error, logtype_afpd, "afp_write: ad_writefile: %s", strerror(errno) );
- goto afp_write_loop;
- }
- dsi_writeflush(dsi);
- *rbuflen = 0;
- ad_tmplock(ofork->of_ad, eid, ADLOCK_CLR, saveoff,
- reqcount, ofork->of_refnum);
- return cc;
+ if ((cc = ad_writefile(ofork->of_ad, eid, dsi->socket, offset, dsi->datasize)) < 0) {
+ switch (errno) {
+ case EDQUOT:
+ case EFBIG:
+ case ENOSPC:
+ cc = AFPERR_DFULL;
+ break;
+ default:
+ LOG(log_error, logtype_afpd, "afp_write: ad_writefile: %s", strerror(errno) );
+ goto afp_write_loop;
}
-
- offset += cc;
- goto afp_write_done;
+ dsi_writeflush(dsi);
+ *rbuflen = 0;
+ if (obj->options.flags & OPTION_AFP_READ_LOCK)
+ ad_tmplock(ofork->of_ad, eid, ADLOCK_CLR, saveoff, reqcount, ofork->of_refnum);
+ return cc;
}
+
+ offset += cc;
+ goto afp_write_done;
#endif /* 0, was HAVE_SENDFILE_WRITE */
/* loop until everything gets written. currently
* dsi_write handles the end case by itself. */
- while ((cc = dsi_write(dsi, rbuf, *rbuflen))) {
- if ((cc = write_file(ofork, eid, offset, rbuf, cc)) < 0) {
+ while ((cc = dsi_write(dsi, rcvbuf, rcvbuflen))) {
+
+ if ((cc = write_file(ofork, eid, offset, rcvbuf, cc)) < 0) {
dsi_writeflush(dsi);
*rbuflen = 0;
- ad_tmplock(ofork->of_ad, eid, ADLOCK_CLR, saveoff,
- reqcount, ofork->of_refnum);
+ if (obj->options.flags & OPTION_AFP_READ_LOCK)
+ ad_tmplock(ofork->of_ad, eid, ADLOCK_CLR, saveoff, reqcount, ofork->of_refnum);
return cc;
}
+
+ LOG(log_debug, logtype_afpd, "afp_write: wrote: %jd, offset: %jd",
+ (intmax_t)cc, (intmax_t)offset);
+
offset += cc;
}
- ad_tmplock(ofork->of_ad, eid, ADLOCK_CLR, saveoff, reqcount, ofork->of_refnum);
+ if (obj->options.flags & OPTION_AFP_READ_LOCK)
+ ad_tmplock(ofork->of_ad, eid, ADLOCK_CLR, saveoff, reqcount, ofork->of_refnum);
if ( ad_meta_fileno( ofork->of_ad ) != -1 ) /* META */
ofork->of_flags |= AFPFORK_DIRTY;
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