/*
- * $Id: ofork.c,v 1.22 2005-07-08 16:48:45 didg Exp $
- *
* Copyright (c) 1996 Regents of The University of Michigan.
* All Rights Reserved. See COPYRIGHT.
*/
#include <string.h>
#include <sys/stat.h> /* works around a bug */
#include <sys/param.h>
-#include <atalk/logger.h>
#include <errno.h>
+#include <atalk/logger.h>
#include <atalk/util.h>
+#include <atalk/bstrlib.h>
+#include <atalk/bstradd.h>
#include "globals.h"
#include "volume.h"
#define OFORK_HASHSIZE 64
static struct ofork *ofork_table[OFORK_HASHSIZE];
-static struct ofork **oforks = NULL;
-static int nforks = 0;
-static u_short lastrefnum = 0;
+static struct ofork **oforks = NULL;
+static int nforks = 0;
+static u_short lastrefnum = 0;
/* OR some of each character for the hash*/
-static __inline__ unsigned long hashfn(const struct file_key *key)
+static unsigned long hashfn(const struct file_key *key)
{
#if 0
unsigned long i = 0;
while (*name) {
i = ((i << 4) | (8*sizeof(i) - 4)) ^ *name++;
}
-#endif
+#endif
return key->inode & (OFORK_HASHSIZE - 1);
}
-static __inline__ void of_hash(struct ofork *of)
+static void of_hash(struct ofork *of)
{
struct ofork **table;
of->prevp = table;
}
-static __inline__ void of_unhash(struct ofork *of)
+static void of_unhash(struct ofork *of)
{
if (of->prevp) {
if (of->next)
}
#ifdef DEBUG1
-void of_pforkdesc( f )
-FILE *f;
+void of_pforkdesc( FILE *f)
{
- int ofrefnum;
+ int ofrefnum;
if (!oforks)
return;
for ( ofrefnum = 0; ofrefnum < nforks; ofrefnum++ ) {
if ( oforks[ ofrefnum ] != NULL ) {
- fprintf( f, "%hu <%s>\n", ofrefnum, oforks[ ofrefnum ]->of_name);
+ fprintf( f, "%hu <%s>\n", ofrefnum, of_name(oforks[ ofrefnum ]));
}
}
}
int of_flush(const struct vol *vol)
{
- int refnum;
+ int refnum;
if (!oforks)
return 0;
for ( refnum = 0; refnum < nforks; refnum++ ) {
if (oforks[ refnum ] != NULL && (oforks[refnum]->of_vol == vol) &&
- flushfork( oforks[ refnum ] ) < 0 ) {
+ flushfork( oforks[ refnum ] ) < 0 ) {
LOG(log_error, logtype_afpd, "of_flush: %s", strerror(errno) );
}
}
return( 0 );
}
-int of_rename(vol, s_of, olddir, oldpath, newdir, newpath)
-const struct vol *vol;
-struct ofork *s_of;
-struct dir *olddir, *newdir;
-const char *oldpath _U_, *newpath;
+int of_rename(const struct vol *vol,
+ struct ofork *s_of,
+ struct dir *olddir, const char *oldpath _U_,
+ struct dir *newdir, const char *newpath)
{
- struct ofork *of, *next, *d_ofork;
+ struct ofork *of, *next;
+ int done = 0;
if (!s_of)
return AFP_OK;
-
+
next = ofork_table[hashfn(&s_of->key)];
while ((of = next)) {
next = next->next; /* so we can unhash and still be all right. */
- if (vol == of->of_vol && olddir == of->of_dir &&
- s_of->key.dev == of->key.dev &&
- s_of->key.inode == of->key.inode ) {
- strlcpy( of->of_name, newpath, of->of_namelen);
- if (newdir != olddir) {
- of->of_d_prev->of_d_next = of->of_d_next;
- of->of_d_next->of_d_prev = of->of_d_prev;
- if (of->of_dir->d_ofork == of) {
- of->of_dir->d_ofork = (of == of->of_d_next) ? NULL : of->of_d_next;
- }
- of->of_dir = newdir;
- if (!(d_ofork = newdir->d_ofork)) {
- newdir->d_ofork = of;
- of->of_d_next = of->of_d_prev = of;
- } else {
- of->of_d_next = d_ofork;
- of->of_d_prev = d_ofork->of_d_prev;
- of->of_d_prev->of_d_next = of;
- d_ofork->of_d_prev = of;
- }
+ if (vol == of->of_vol
+ && olddir->d_did == of->of_did
+ && s_of->key.dev == of->key.dev
+ && s_of->key.inode == of->key.inode ) {
+ if (!done) {
+ strlcpy( of_name(of), newpath, of->of_ad->ad_m_namelen);
+ done = 1;
}
+ if (newdir != olddir)
+ of->of_did = newdir->d_did;
}
}
return AFP_OK;
}
-#define min(a,b) ((a)<(b)?(a):(b))
+#define min(a,b) ((a)<(b)?(a):(b))
struct ofork *
- of_alloc(vol, dir, path, ofrefnum, eid, ad, st)
-struct vol *vol;
-struct dir *dir;
-char *path;
-u_int16_t *ofrefnum;
-const int eid;
-struct adouble *ad;
-struct stat *st;
+of_alloc(struct vol *vol,
+ struct dir *dir,
+ char *path,
+ u_int16_t *ofrefnum,
+ const int eid,
+ struct adouble *ad,
+ struct stat *st)
{
- struct ofork *of, *d_ofork;
- u_int16_t refnum, of_refnum;
+ struct ofork *of;
+ u_int16_t refnum, of_refnum;
- int i;
+ int i;
if (!oforks) {
- nforks = (getdtablesize() - 10) / 2;
- /* protect against insane ulimit -n */
+ nforks = getdtablesize() - 10;
+ /* protect against insane ulimit -n */
nforks = min(nforks, 0xffff);
oforks = (struct ofork **) calloc(nforks, sizeof(struct ofork *));
if (!oforks)
}
}
/* grr, Apple and their 'uniquely identifies'
- the next line is a protection against
- of_alloc()
- refnum % nforks = 3
- lastrefnum = 3
- oforks[3] != NULL
- refnum = 4
- oforks[4] == NULL
- return 4
-
- close(oforks[4])
-
- of_alloc()
- refnum % nforks = 4
- ...
- return 4
- same if lastrefnum++ rather than ++lastrefnum.
+ the next line is a protection against
+ of_alloc()
+ refnum % nforks = 3
+ lastrefnum = 3
+ oforks[3] != NULL
+ refnum = 4
+ oforks[4] == NULL
+ return 4
+
+ close(oforks[4])
+
+ of_alloc()
+ refnum % nforks = 4
+ ...
+ return 4
+ same if lastrefnum++ rather than ++lastrefnum.
*/
lastrefnum = refnum;
if ( i == nforks ) {
of_refnum = refnum % nforks;
if (( oforks[ of_refnum ] =
- (struct ofork *)malloc( sizeof( struct ofork ))) == NULL ) {
+ (struct ofork *)malloc( sizeof( struct ofork ))) == NULL ) {
LOG(log_error, logtype_afpd, "of_alloc: malloc: %s", strerror(errno) );
return NULL;
}
ad = malloc( sizeof( struct adouble ) );
if (!ad) {
LOG(log_error, logtype_afpd, "of_alloc: malloc: %s", strerror(errno) );
+ free(of);
+ oforks[ of_refnum ] = NULL;
return NULL;
}
/* initialize to zero. This is important to ensure that
ad_open really does reinitialize the structure. */
ad_init(ad, vol->v_adouble, vol->v_ad_options);
+
+ ad->ad_m_namelen = UTF8FILELEN_EARLY +1;
+ /* here's the deal: we allocate enough for the standard mac file length.
+ * in the future, we'll reallocate in fairly large jumps in case
+ * of long unicode names */
+ if (( ad->ad_m_name =(char *)malloc( ad->ad_m_namelen )) == NULL ) {
+ LOG(log_error, logtype_afpd, "of_alloc: malloc: %s", strerror(errno) );
+ free(ad);
+ free(of);
+ oforks[ of_refnum ] = NULL;
+ return NULL;
+ }
+ strlcpy( ad->ad_m_name, path, ad->ad_m_namelen);
} else {
/* Increase the refcount on this struct adouble. This is
decremented again in oforc_dealloc. */
}
of->of_ad = ad;
-
of->of_vol = vol;
- of->of_dir = dir;
+ of->of_did = dir->d_did;
- if (!(d_ofork = dir->d_ofork)) {
- dir->d_ofork = of;
- of->of_d_next = of->of_d_prev = of;
- } else {
- of->of_d_next = d_ofork;
- of->of_d_prev = d_ofork->of_d_prev;
- d_ofork->of_d_prev->of_d_next = of;
- d_ofork->of_d_prev = of;
- }
-
- /* here's the deal: we allocate enough for the standard mac file length.
- * in the future, we'll reallocate in fairly large jumps in case
- * of long unicode names */
- if (( of->of_name =(char *)malloc(255 + 1)) == NULL ) {
- LOG(log_error, logtype_afpd, "of_alloc: malloc: %s", strerror(errno) );
- if (!ad)
- free(of->of_ad);
- free(of);
- oforks[ of_refnum ] = NULL;
- return NULL;
- }
- strlcpy( of->of_name, path, of->of_namelen = 255 + 1);
*ofrefnum = refnum;
of->of_refnum = refnum;
of->key.dev = st->st_dev;
}
/* -------------------------- */
-int of_stat (struct path *path)
+int of_stat(struct path *path)
{
-int ret;
+ int ret;
+
path->st_errno = 0;
path->st_valid = 1;
- if ((ret = stat(path->u_name, &path->st)) < 0)
+
+ if ((ret = lstat(path->u_name, &path->st)) < 0) {
+ LOG(log_debug, logtype_afpd, "of_stat('%s/%s': %s)",
+ cfrombstr(curdir->d_fullpath), path->u_name, strerror(errno));
path->st_errno = errno;
+ }
+
+ return ret;
+}
+
+
+#ifdef HAVE_ATFUNCS
+int of_fstatat(int dirfd, struct path *path)
+{
+ int ret;
+
+ path->st_errno = 0;
+ path->st_valid = 1;
+
+ if ((ret = fstatat(dirfd, path->u_name, &path->st, AT_SYMLINK_NOFOLLOW)) < 0)
+ path->st_errno = errno;
+
return ret;
}
+#endif /* HAVE_ATFUNCS */
-/* -------------------------- */
-int of_statdir (const struct vol *vol, struct path *path)
+/* --------------------------
+ stat the current directory.
+ stat(".") works even if "." is deleted thus
+ we have to stat ../name because we want to know if it's there
+*/
+int of_statdir(struct vol *vol, struct path *path)
{
-static char pathname[ MAXPATHLEN + 1];
-int ret;
+ static char pathname[ MAXPATHLEN + 1] = "../";
+ int ret;
+ size_t len;
+ struct dir *dir;
if (*path->m_name) {
/* not curdir */
path->st_errno = 0;
path->st_valid = 1;
/* FIXME, what about: we don't have r-x perm anymore ? */
- strcpy(pathname, "../");
- strlcat(pathname, path->d_dir->d_u_name, MAXPATHLEN);
+ len = blength(path->d_dir->d_u_name);
+ if (len > (MAXPATHLEN - 3))
+ len = MAXPATHLEN - 3;
+ strncpy(pathname + 3, cfrombstr(path->d_dir->d_u_name), len + 1);
- if (!(ret = stat(pathname, &path->st)))
+ LOG(log_debug, logtype_afpd, "of_statdir: stating: '%s'", pathname);
+
+ if (!(ret = lstat(pathname, &path->st)))
return 0;
-
+
path->st_errno = errno;
+
/* hmm, can't stat curdir anymore */
- if (errno == EACCES && curdir->d_parent ) {
- if (movecwd(vol, curdir->d_parent))
+ if (errno == EACCES && (dir = dirlookup(vol, curdir->d_pdid))) {
+ if (movecwd(vol, dir))
return -1;
path->st_errno = 0;
- if ((ret = stat(path->d_dir->d_u_name, &path->st)) < 0)
+
+ if ((ret = lstat(cfrombstr(path->d_dir->d_u_name), &path->st)) < 0)
path->st_errno = errno;
}
+
return ret;
}
/* -------------------------- */
-struct ofork *
- of_findname(struct path *path)
+struct ofork *of_findname(struct path *path)
{
struct ofork *of;
struct file_key key;
-
+
if (!path->st_valid) {
- of_stat(path);
+ of_stat(path);
+ }
+
+ if (path->st_errno)
+ return NULL;
+
+ key.dev = path->st.st_dev;
+ key.inode = path->st.st_ino;
+
+ for (of = ofork_table[hashfn(&key)]; of; of = of->next) {
+ if (key.dev == of->key.dev && key.inode == of->key.inode ) {
+ return of;
+ }
+ }
+
+ return NULL;
+}
+
+/*!
+ * @brief Search for open fork by dirfd/name
+ *
+ * Function call of_fstatat with dirfd and path and uses dev and ino
+ * to search the open fork table.
+ *
+ * @param dirfd (r) directory fd
+ * @param path (rw) pointer to struct path
+ */
+#ifdef HAVE_ATFUNCS
+struct ofork *of_findnameat(int dirfd, struct path *path)
+{
+ struct ofork *of;
+ struct file_key key;
+
+ if ( ! path->st_valid) {
+ of_fstatat(dirfd, path);
}
if (path->st_errno)
return NULL;
}
+#endif
-void of_dealloc( of )
-struct ofork *of;
+void of_dealloc( struct ofork *of)
{
if (!oforks)
return;
of_unhash(of);
-
- /* detach ofork */
- of->of_d_prev->of_d_next = of->of_d_next;
- of->of_d_next->of_d_prev = of->of_d_prev;
- if (of->of_dir->d_ofork == of) {
- of->of_dir->d_ofork = (of == of->of_d_next) ? NULL : of->of_d_next;
- }
-
oforks[ of->of_refnum % nforks ] = NULL;
- free( of->of_name );
/* decrease refcount */
of->of_ad->ad_refcount--;
if ( of->of_ad->ad_refcount <= 0) {
+ free( of->of_ad->ad_m_name );
free( of->of_ad);
} else {/* someone's still using it. just free this user's locks */
ad_unlock(of->of_ad, of->of_refnum);
int of_closefork(struct ofork *ofork)
{
struct timeval tv;
- int adflags, doflush = 0;
+ int adflags, doflush = 0;
int ret;
adflags = 0;
- if ((ofork->of_flags & AFPFORK_DATA) && (ad_dfileno( ofork->of_ad ) != -1)) {
- adflags |= ADFLAGS_DF;
+ if ((ofork->of_flags & AFPFORK_DATA) && (ad_data_fileno( ofork->of_ad ) != -1)) {
+ adflags |= ADFLAGS_DF;
}
- if ( (ofork->of_flags & AFPFORK_OPEN) && ad_hfileno( ofork->of_ad ) != -1 ) {
+ if ( (ofork->of_flags & AFPFORK_OPEN) && ad_reso_fileno( ofork->of_ad ) != -1 ) {
adflags |= ADFLAGS_HF;
/*
* Only set the rfork's length if we're closing the rfork.
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++;
+ doflush++;
}
if ( doflush ) {
- ad_flush( ofork->of_ad, adflags );
+ ad_flush( ofork->of_ad );
}
}
}
if ( ad_close( ofork->of_ad, adflags ) < 0 ) {
ret = -1;
}
-
+
of_dealloc( ofork );
return ret;
}
/* ----------------------
-*/
+ */
struct adouble *of_ad(const struct vol *vol, struct path *path, struct adouble *ad)
{
struct ofork *of;
return adp;
}
-/* ----------------------
+/* ----------------------
close all forks for a volume
*/
void of_closevol(const struct vol *vol)
{
- int refnum;
+ int refnum;
if (!oforks)
return;
return;
}
+/* ----------------------
+ close all forks for a volume
+*/
+void of_close_all_forks(void)
+{
+ int refnum;
+
+ if (!oforks)
+ return;
+
+ for ( refnum = 0; refnum < nforks; refnum++ ) {
+ if (oforks[ refnum ] != NULL) {
+ if (of_closefork( oforks[ refnum ]) < 0 ) {
+ LOG(log_error, logtype_afpd, "of_close_all_forks: %s", strerror(errno) );
+ }
+ }
+ }
+ return;
+}
+
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