/*
- * $Id: ad_flush.c,v 1.10 2009-07-21 13:41:16 didg Exp $
- *
* Copyright (c) 1990,1991 Regents of The University of Michigan.
+ * Copyright (c) 2010 Frank Lahm
* All Rights Reserved.
*
* Permission to use, copy, modify, and distribute this software and
* permission. This software is supplied as is without expressed or
* implied warranties of any kind.
*
- * Research Systems Unix Group
- * The University of Michigan
- * c/o Mike Clark
- * 535 W. William Street
- * Ann Arbor, Michigan
- * +1-313-763-0525
- * netatalk@itd.umich.edu
+ * Research Systems Unix Group
+ * The University of Michigan
+ * c/o Mike Clark
+ * 535 W. William Street
+ * Ann Arbor, Michigan
+ * +1-313-763-0525
+ * netatalk@itd.umich.edu
*/
#ifdef HAVE_CONFIG_H
#endif /* HAVE_CONFIG_H */
#include <string.h>
-#include <atalk/adouble.h>
-
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
-#include "ad_private.h"
-#if AD_VERSION == AD_VERSION1
-
-#define EID_DISK(a) (a)
+#include <atalk/adouble.h>
+#include <atalk/ea.h>
+#include <atalk/logger.h>
+#include <atalk/bstrlib.h>
+#include <atalk/bstradd.h>
-#else
+#include "ad_lock.h"
static const u_int32_t set_eid[] = {
-0,1,2,3,4,5,6,7,8,
-9,10,11,12,13,14,15,
-AD_DEV, AD_INO, AD_SYN, AD_ID
+ 0,1,2,3,4,5,6,7,8,
+ 9,10,11,12,13,14,15,
+ AD_DEV, AD_INO, AD_SYN, AD_ID
};
#define EID_DISK(a) (set_eid[a])
-#endif
-/* rebuild the adouble header
- * XXX should be in a separate file ?
-*/
+/*
+ * Rebuild any header information that might have changed.
+ */
int ad_rebuild_adouble_header(struct adouble *ad)
{
- u_int32_t eid;
- u_int32_t temp;
-
- u_int16_t nent;
- char *buf, *nentp;
-
- /*
- * Rebuild any header information that might have changed.
- */
+ u_int32_t eid;
+ u_int32_t temp;
+ u_int16_t nent;
+ char *buf, *nentp;
+ int len;
+
buf = ad->ad_data;
temp = htonl( ad->ad_magic );
memcpy(buf, &temp, sizeof( temp ));
buf += sizeof( temp );
-
+
temp = htonl( ad->ad_version );
memcpy(buf, &temp, sizeof( temp ));
buf += sizeof( temp );
- memcpy(buf, ad->ad_filler, sizeof( ad->ad_filler ));
buf += sizeof( ad->ad_filler );
-
+
nentp = buf;
buf += sizeof( nent );
for ( eid = 0, nent = 0; eid < ADEID_MAX; eid++ ) {
- if ( ad->ad_eid[ eid ].ade_off == 0 ) {
- continue;
- }
- temp = htonl( EID_DISK(eid) );
- memcpy(buf, &temp, sizeof( temp ));
- buf += sizeof( temp );
-
- temp = htonl( ad->ad_eid[ eid ].ade_off );
- memcpy(buf, &temp, sizeof( temp ));
- buf += sizeof( temp );
-
- temp = htonl( ad->ad_eid[ eid ].ade_len );
- memcpy(buf, &temp, sizeof( temp ));
- buf += sizeof( temp );
- nent++;
+ if ( ad->ad_eid[ eid ].ade_off == 0 ) {
+ continue;
+ }
+ temp = htonl( EID_DISK(eid) );
+ memcpy(buf, &temp, sizeof( temp ));
+ buf += sizeof( temp );
+
+ temp = htonl( ad->ad_eid[ eid ].ade_off );
+ memcpy(buf, &temp, sizeof( temp ));
+ buf += sizeof( temp );
+
+ temp = htonl( ad->ad_eid[ eid ].ade_len );
+ memcpy(buf, &temp, sizeof( temp ));
+ buf += sizeof( temp );
+ nent++;
}
nent = htons( nent );
memcpy(nentp, &nent, sizeof( nent ));
- return ad_getentryoff(ad, ADEID_RFORK);
+
+ switch (ad->ad_flags) {
+ case AD_VERSION2:
+ len = ad_getentryoff(ad, ADEID_RFORK);
+ break;
+ case AD_VERSION_EA:
+ len = AD_DATASZ_EA;
+ break;
+ default:
+ LOG(log_error, logtype_afpd, "Unexpected adouble version");
+ len = 0;
+ break;
+ }
+
+ return len;
}
-/* -------------------
+/* -------------------
* XXX copy only header with same size or comment
* doesn't work well for adouble with different version.
- *
-*/
+ *
+ */
int ad_copy_header(struct adouble *add, struct adouble *ads)
{
- u_int32_t eid;
- u_int32_t len;
+ u_int32_t eid;
+ u_int32_t len;
for ( eid = 0; eid < ADEID_MAX; eid++ ) {
- if ( ads->ad_eid[ eid ].ade_off == 0 ) {
- continue;
- }
-
- if ( add->ad_eid[ eid ].ade_off == 0 ) {
- continue;
- }
-
- len = ads->ad_eid[ eid ].ade_len;
- if (!len) {
- continue;
- }
-
- if (eid != ADEID_COMMENT && add->ad_eid[ eid ].ade_len != len ) {
- continue;
- }
-
- ad_setentrylen( add, eid, len );
- memcpy( ad_entry( add, eid ), ad_entry( ads, eid ), len );
- }
- add->ad_rlen = ads->ad_rlen;
- return 0;
-}
+ if ( ads->ad_eid[ eid ].ade_off == 0 ) {
+ continue;
+ }
-/* ------------------- */
-int ad_rebuild_sfm_header(struct adouble *ad)
-{
- u_int32_t temp;
-
- u_int16_t attr;
- char *buf;
-
- /*
- * Rebuild any header information that might have changed.
- */
- buf = ad->ad_data;
- /* FIXME */
-/* temp = htonl( ad->ad_magic ); */
- temp = ad->ad_magic;
- memcpy(buf, &temp, sizeof( temp ));
-
-/* temp = htonl( ad->ad_version ); */
- temp = ad->ad_version;
- memcpy(buf +4, &temp, sizeof( temp ));
+ if ( add->ad_eid[ eid ].ade_off == 0 ) {
+ continue;
+ }
- /* need to save attrib */
- if (!ad_getattr(ad, &attr)) {
- attr &= ~htons(ATTRBIT_DOPEN | ATTRBIT_ROPEN);
+ len = ads->ad_eid[ eid ].ade_len;
+ if (!len) {
+ continue;
+ }
+
+ if (eid != ADEID_COMMENT && add->ad_eid[ eid ].ade_len != len ) {
+ continue;
+ }
- memcpy(buf +48 +4, &attr, sizeof(attr));
-
+ ad_setentrylen( add, eid, len );
+ memcpy( ad_entry( add, eid ), ad_entry( ads, eid ), len );
}
- return AD_SFM_LEN;
+ add->ad_rlen = ads->ad_rlen;
+ return 0;
}
-
-int ad_flush( ad )
- struct adouble *ad;
+int ad_flush(struct adouble *ad)
{
int len;
if (( ad->ad_md->adf_flags & O_RDWR )) {
- /* sync our header */
- if (ad->ad_rlen > 0xffffffff) {
- ad_setentrylen(ad, ADEID_RFORK, 0xffffffff);
- }
- else {
- ad_setentrylen(ad, ADEID_RFORK, ad->ad_rlen);
+ if (ad_getentryoff(ad, ADEID_RFORK)) {
+ if (ad->ad_rlen > 0xffffffff)
+ ad_setentrylen(ad, ADEID_RFORK, 0xffffffff);
+ else
+ ad_setentrylen(ad, ADEID_RFORK, ad->ad_rlen);
}
len = ad->ad_ops->ad_rebuild_header(ad);
- if (adf_pwrite(ad->ad_md, ad->ad_data, len, 0) != len) {
- if ( errno == 0 ) {
- errno = EIO;
- }
- return( -1 );
- }
+ switch (ad->ad_flags) {
+ case AD_VERSION2:
+ if (adf_pwrite(ad->ad_md, ad->ad_data, len, 0) != len) {
+ if (errno == 0)
+ errno = EIO;
+ return( -1 );
+ }
+ break;
+ case AD_VERSION_EA:
+ if (sys_lsetxattr(cfrombstr(ad->ad_fullpath), AD_EA_META, ad->ad_data, AD_DATASZ_EA, 0) != 0) {
+ LOG(log_error, logtype_afpd, "ad_flush: sys_fsetxattr error: %s",
+ strerror(errno));
+ return -1;
+ }
+ break;
+ default:
+ LOG(log_error, logtype_afpd, "ad_flush: unexpected adouble version");
+ return -1;
+ }
}
return( 0 );
}
-/* use refcounts so that we don't have to re-establish fcntl locks. */
-int ad_close( ad, adflags )
- struct adouble *ad;
- int adflags;
+/*!
+ * Close a struct adouble freeing all resources
+ *
+ * This close the whole thing, regardless of what you pass in adflags!
+ * When open forks are using this struct adouble (ad_refcount>0) the close
+ * request is ignored.
+ */
+int ad_close( struct adouble *ad, int adflags)
{
- int err = 0;
-
- if (( adflags & ADFLAGS_DF ) && ad_data_fileno(ad) != -1 &&
- !(--ad->ad_data_fork.adf_refcount)) {
- if ( close( ad_data_fileno(ad) ) < 0 ) {
- err = -1;
- }
- ad_data_fileno(ad) = -1;
- adf_lock_free(&ad->ad_data_fork);
- }
+ int err = 0;
+
+ LOG(log_debug, logtype_default, "ad_close(\"%s\", %s)",
+ cfrombstr(ad->ad_fullpath),
+ adflags2logstr(adflags));
- if (!( adflags & ADFLAGS_HF )) {
- return err;
+ if (ad->ad_refcount) {
+ LOG(log_debug, logtype_default, "ad_close(\"%s\"): adouble in use by fork, not closing",
+ cfrombstr(ad->ad_fullpath));
+ return 0;
}
-
- /* meta /resource fork */
-
- if ( ad_meta_fileno(ad) != -1 && !(--ad->ad_md->adf_refcount)) {
- if ( close( ad_meta_fileno(ad) ) < 0 ) {
- err = -1;
- }
- ad_meta_fileno(ad) = -1;
- adf_lock_free(ad->ad_md);
+
+ if (ad_data_fileno(ad) != -1) {
+ if ((ad_data_fileno(ad) == -2) && (ad->ad_data_fork.adf_syml != NULL)) {
+ free(ad->ad_data_fork.adf_syml);
+ ad->ad_data_fork.adf_syml = NULL;
+ } else {
+ if ( close( ad_data_fileno(ad) ) < 0 )
+ err = -1;
+ }
+ ad_data_fileno(ad) = -1;
+ adf_lock_free(&ad->ad_data_fork);
+ ad->ad_adflags &= ~ADFLAGS_DF;
}
- if (ad->ad_flags != AD_VERSION1_SFM) {
- return err;
+ if (ad_meta_fileno(ad) != -1) {
+ if ( close( ad_meta_fileno(ad) ) < 0 )
+ err = -1;
+ ad_meta_fileno(ad) = -1;
+ adf_lock_free(ad->ad_md);
+ ad->ad_adflags &= ~ADFLAGS_HF;
}
- if ((adflags & ADFLAGS_DIR)) {
- return err;
+ if (ad->ad_resforkbuf) {
+ free(ad->ad_resforkbuf);
+ ad->ad_resforkbuf = NULL;
+ ad->ad_adflags &= ~ADFLAGS_RF;
}
- if ( ad_reso_fileno(ad) != -1 && !(--ad->ad_resource_fork.adf_refcount)) {
- if ( close( ad_reso_fileno(ad) ) < 0 ) {
- err = -1;
- }
- ad_reso_fileno(ad) = -1;
- adf_lock_free(&ad->ad_resource_fork);
+ if (ad->ad_fullpath) {
+ bdestroy(ad->ad_fullpath);
+ ad->ad_fullpath = NULL;
}
-
+
return err;
}
projects / netatalk.git / blobdiff