#include <atalk/logger.h>
#include <atalk/bstrlib.h>
#include <atalk/bstradd.h>
+#include <atalk/errchk.h>
+#include <atalk/util.h>
#include "ad_lock.h"
#define EID_DISK(a) (set_eid[a])
/*
- * Rebuild any header information that might have changed.
+ * Prepare ad->ad_data buffer from struct adouble for writing on disk
*/
-int ad_rebuild_adouble_header(struct adouble *ad)
+int ad_rebuild_adouble_header_v2(struct adouble *ad)
{
uint32_t eid;
uint32_t temp;
uint16_t nent;
char *buf, *nentp;
- int len;
+
+ LOG(log_debug, logtype_ad, "ad_rebuild_adouble_header_v2");
buf = ad->ad_data;
nentp = buf;
buf += sizeof( nent );
for ( eid = 0, nent = 0; eid < ADEID_MAX; eid++ ) {
- if ( ad->ad_eid[ eid ].ade_off == 0 ) {
+ if (ad->ad_eid[ eid ].ade_off == 0)
continue;
- }
temp = htonl( EID_DISK(eid) );
memcpy(buf, &temp, sizeof( temp ));
buf += sizeof( temp );
nent = htons( nent );
memcpy(nentp, &nent, sizeof( nent ));
- 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 ad_getentryoff(ad, ADEID_RFORK);
+}
+
+int ad_rebuild_adouble_header_ea(struct adouble *ad)
+{
+ uint32_t eid;
+ uint32_t temp;
+ uint16_t nent;
+ char *buf, *nentp;
+
+ LOG(log_debug, logtype_ad, "ad_rebuild_adouble_header_ea");
+
+ 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 );
+
+ 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) || (eid == ADEID_RFORK))
+ 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 len;
+ return AD_DATASZ_EA;
+}
+
+/*!
+ * Prepare adbuf buffer from struct adouble for writing on disk
+ */
+int ad_rebuild_adouble_header_osx(struct adouble *ad, char *adbuf)
+{
+ uint32_t temp;
+ uint16_t nent;
+ char *buf;
+
+ LOG(log_debug, logtype_ad, "ad_rebuild_adouble_header_osx");
+
+ buf = &adbuf[0];
+
+ 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_FILLER_NETATALK, strlen(AD_FILLER_NETATALK));
+ buf += sizeof( ad->ad_filler );
+
+ nent = htons(ADEID_NUM_OSX);
+ memcpy(buf, &nent, sizeof( nent ));
+ buf += sizeof( nent );
+
+ /* FinderInfo */
+ temp = htonl(EID_DISK(ADEID_FINDERI));
+ memcpy(buf, &temp, sizeof( temp ));
+ buf += sizeof( temp );
+
+ temp = htonl(ADEDOFF_FINDERI_OSX);
+ memcpy(buf, &temp, sizeof( temp ));
+ buf += sizeof( temp );
+
+ temp = htonl(ADEDLEN_FINDERI);
+ memcpy(buf, &temp, sizeof( temp ));
+ buf += sizeof( temp );
+
+ memcpy(adbuf + ADEDOFF_FINDERI_OSX, ad_entry(ad, ADEID_FINDERI), ADEDLEN_FINDERI);
+
+ /* rfork */
+ temp = htonl( EID_DISK(ADEID_RFORK) );
+ memcpy(buf, &temp, sizeof( temp ));
+ buf += sizeof( temp );
+
+ temp = htonl(ADEDOFF_RFORK_OSX);
+ memcpy(buf, &temp, sizeof( temp ));
+ buf += sizeof( temp );
+
+ temp = htonl( ad->ad_rlen);
+ memcpy(buf, &temp, sizeof( temp ));
+ buf += sizeof( temp );
+
+ return AD_DATASZ_OSX;
}
/* -------------------
uint32_t len;
for ( eid = 0; eid < ADEID_MAX; eid++ ) {
- if ( ads->ad_eid[ eid ].ade_off == 0 ) {
+ if ( ads->ad_eid[ eid ].ade_off == 0 || add->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) {
+ if (len == 0)
continue;
- }
- if (eid != ADEID_COMMENT && add->ad_eid[ eid ].ade_len != len ) {
+ switch (eid) {
+ case ADEID_COMMENT:
+ case ADEID_RFORK:
continue;
+ default:
+ ad_setentrylen( add, eid, len );
+ memcpy( ad_entry( add, eid ), ad_entry( ads, eid ), len );
}
-
- ad_setentrylen( add, eid, len );
- memcpy( ad_entry( add, eid ), ad_entry( ads, eid ), len );
}
add->ad_rlen = ads->ad_rlen;
+
+ if (((ads->ad_vers == AD_VERSION2) && (add->ad_vers == AD_VERSION_EA))
+ || ((ads->ad_vers == AD_VERSION_EA) && (add->ad_vers == AD_VERSION2))) {
+ cnid_t id;
+ memcpy(&id, ad_entry(add, ADEID_PRIVID), sizeof(cnid_t));
+ id = htonl(id);
+ memcpy(ad_entry(add, ADEID_PRIVID), &id, sizeof(cnid_t));
+ }
return 0;
}
-int ad_flush(struct adouble *ad)
+static int ad_flush_hf(struct adouble *ad)
{
+ EC_INIT;
int len;
+ int cwd = -1;
- if (( ad->ad_md->adf_flags & O_RDWR )) {
+ LOG(log_debug, logtype_ad, "ad_flush_hf(%s)", adflags2logstr(ad->ad_adflags));
+
+ struct ad_fd *adf;
+
+ switch (ad->ad_vers) {
+ case AD_VERSION2:
+ adf = ad->ad_mdp;
+ break;
+ case AD_VERSION_EA:
+ adf = &ad->ad_data_fork;
+ break;
+ default:
+ LOG(log_error, logtype_ad, "ad_flush: unexpected adouble version");
+ return -1;
+ }
+
+ if ((adf->adf_flags & O_RDWR)
+ || ((ad->ad_adflags & ADFLAGS_DIR) && (ad->ad_adflags & ADFLAGS_RDWR))) {
if (ad_getentryoff(ad, ADEID_RFORK)) {
if (ad->ad_rlen > 0xffffffff)
ad_setentrylen(ad, ADEID_RFORK, 0xffffffff);
}
len = ad->ad_ops->ad_rebuild_header(ad);
- switch (ad->ad_flags) {
+ switch (ad->ad_vers) {
case AD_VERSION2:
- if (adf_pwrite(ad->ad_md, ad->ad_data, len, 0) != len) {
+ if (adf_pwrite(ad->ad_mdp, 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;
+ if (AD_META_OPEN(ad)) {
+ if (ad->ad_adflags & ADFLAGS_DIR) {
+ EC_NEG1_LOG( cwd = open(".", O_RDONLY) );
+ EC_NEG1_LOG( fchdir(ad_data_fileno(ad)) );
+
+ ret = sys_lsetxattr(".", AD_EA_META, ad->ad_data, AD_DATASZ_EA, 0);
+
+ if (ret != 0) {
+ if (errno != EPERM)
+ EC_FAIL;
+
+ if (!(ad->ad_options & ADVOL_FORCE_STICKY_XATTR))
+ EC_FAIL;
+
+ /*
+ * This may be a directory with a sticky bit
+ * set, which means even though we may have
+ * write access to the directory, only the
+ * owner is allowed to write xattrs
+ */
+
+ become_root();
+ ret = sys_lsetxattr(".", AD_EA_META, ad->ad_data, AD_DATASZ_EA, 0);
+ unbecome_root();
+
+ if (ret != 0) {
+ LOG(log_error, logtype_ad, "ad_flush_hf: %s", strerror(errno));
+ EC_FAIL;
+ }
+ }
+
+ EC_NEG1_LOG( fchdir(cwd) );
+ EC_NEG1_LOG( close(cwd) );
+ cwd = -1;
+ } else {
+ EC_ZERO_LOG( sys_fsetxattr(ad_data_fileno(ad), AD_EA_META, ad->ad_data, AD_DATASZ_EA, 0) );
+ }
}
break;
default:
- LOG(log_error, logtype_afpd, "ad_flush: unexpected adouble version");
+ LOG(log_error, logtype_ad, "ad_flush: unexpected adouble version");
return -1;
}
}
- return( 0 );
+EC_CLEANUP:
+ if (cwd != -1) {
+ if (fchdir(cwd) != 0) {
+ AFP_PANIC("ad_flush: cant fchdir");
+ }
+ close(cwd);
+ }
+ EC_EXIT;
+}
+
+/* Flush resofork adouble file if any (currently adouble:ea and #ifndef HAVE_EAFD eg Linux) */
+static int ad_flush_rf(struct adouble *ad)
+{
+ ssize_t len;
+ char adbuf[AD_DATASZ_OSX];
+
+#ifdef HAVE_EAFD
+ return 0;
+#endif
+ if (ad->ad_vers != AD_VERSION_EA)
+ return 0;
+
+ LOG(log_debug, logtype_ad, "ad_flush_rf(%s)", adflags2logstr(ad->ad_adflags));
+
+ if ((ad->ad_rfp->adf_flags & O_RDWR)) {
+ 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_rebuild_adouble_header_osx(ad, &adbuf[0]);
+
+ if (adf_pwrite(ad->ad_rfp, adbuf, len, 0) != len) {
+ if (errno == 0)
+ errno = EIO;
+ return -1;
+ }
+ }
+ return 0;
+}
+
+int ad_flush(struct adouble *ad)
+{
+ EC_INIT;
+
+ LOG(log_debug, logtype_ad, "ad_flush(%s)", adflags2logstr(ad->ad_adflags));
+
+ if (AD_META_OPEN(ad)) {
+ EC_ZERO( ad_flush_hf(ad) );
+ }
+
+ if (AD_RSRC_OPEN(ad)) {
+ EC_ZERO( ad_flush_rf(ad) );
+ }
+
+EC_CLEANUP:
+ EC_EXIT;
+}
+
+static int ad_data_closefd(struct adouble *ad)
+{
+ int ret = 0;
+
+ if (ad_data_fileno(ad) == AD_SYMLINK) {
+ free(ad->ad_data_fork.adf_syml);
+ ad->ad_data_fork.adf_syml = NULL;
+ } else {
+ if (close(ad_data_fileno(ad)) < 0)
+ ret = -1;
+ }
+ ad_data_fileno(ad) = -1;
+ return ret;
}
/*!
* 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 ad_close(struct adouble *ad, int adflags)
{
int err = 0;
if (ad == NULL)
- return 0;
+ return err;
- LOG(log_debug, logtype_default, "ad_close(\"%s\", %s)",
- cfrombstr(ad->ad_fullpath),
- adflags2logstr(adflags));
- 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;
+ LOG(log_debug, logtype_ad,
+ "ad_close(%s): BEGIN: {d: %d, m: %d, r: %d} "
+ "[dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
+ adflags2logstr(adflags),
+ ad->ad_data_refcount, ad->ad_meta_refcount, ad->ad_reso_refcount,
+ ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
+ ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
+ ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
+
+ if (adflags & (ADFLAGS_SETSHRMD | ADFLAGS_CHECK_OF)) {
+ /* sharemode locks are stored in the data fork, adouble:v2 needs this extra handling */
+ adflags |= ADFLAGS_DF;
}
- 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 )
+ if ((ad->ad_vers == AD_VERSION2) && (adflags & ADFLAGS_RF))
+ adflags |= ADFLAGS_HF;
+
+ if ((adflags & ADFLAGS_DF) && (ad_data_fileno(ad) >= 0 || ad_data_fileno(ad) == AD_SYMLINK)) {
+ if (ad->ad_data_refcount)
+ if (--ad->ad_data_refcount == 0)
+ adf_lock_free(&ad->ad_data_fork);
+ if (--ad->ad_data_fork.adf_refcount == 0) {
+ if (ad_data_closefd(ad) < 0)
err = -1;
}
- ad_data_fileno(ad) = -1;
- adf_lock_free(&ad->ad_data_fork);
- ad->ad_adflags &= ~ADFLAGS_DF;
}
- 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_HF) && (ad_meta_fileno(ad) != -1)) {
+ if (ad->ad_meta_refcount)
+ ad->ad_meta_refcount--;
+ if (!(--ad->ad_mdp->adf_refcount)) {
+ if (close( ad_meta_fileno(ad)) < 0)
+ err = -1;
+ ad_meta_fileno(ad) = -1;
+ }
}
- if (ad->ad_resforkbuf) {
- free(ad->ad_resforkbuf);
- ad->ad_resforkbuf = NULL;
- ad->ad_adflags &= ~ADFLAGS_RF;
- }
+ if (adflags & ADFLAGS_RF) {
+ /* HF is automatically opened when opening an RF, close it. */
+ if ((ad->ad_vers == AD_VERSION2) && (ad_meta_fileno(ad) != -1)) {
+ if (ad->ad_meta_refcount)
+ ad->ad_meta_refcount--;
+ if (!(--ad->ad_mdp->adf_refcount)) {
+ if (close( ad_meta_fileno(ad)) < 0)
+ err = -1;
+ ad_meta_fileno(ad) = -1;
+ }
+ }
- if (ad->ad_fullpath) {
- bdestroy(ad->ad_fullpath);
- ad->ad_fullpath = NULL;
+ if (ad->ad_reso_refcount)
+ if (--ad->ad_reso_refcount == 0)
+ adf_lock_free(ad->ad_rfp);
+ if (ad->ad_vers == AD_VERSION_EA) {
+ if ((ad_reso_fileno(ad) != -1)
+ && !(--ad->ad_rfp->adf_refcount)) {
+ if (close(ad->ad_rfp->adf_fd) < 0)
+ err = -1;
+ ad->ad_rlen = 0;
+ ad_reso_fileno(ad) = -1;
+ }
+ }
}
+ LOG(log_debug, logtype_ad,
+ "ad_close(%s): END: %d {d: %d, m: %d, r: %d} "
+ "[dfd: %d (ref: %d), mfd: %d (ref: %d), rfd: %d (ref: %d)]",
+ adflags2logstr(adflags), err,
+ ad->ad_data_refcount, ad->ad_meta_refcount, ad->ad_reso_refcount,
+ ad_data_fileno(ad), ad->ad_data_fork.adf_refcount,
+ ad_meta_fileno(ad), ad->ad_mdp->adf_refcount,
+ ad_reso_fileno(ad), ad->ad_rfp->adf_refcount);
+
return err;
}
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