/*
- $Id: extattrs.c,v 1.3 2009-08-31 14:50:46 franklahm Exp $
+ $Id: extattrs.c,v 1.10 2009-10-22 13:40:11 franklahm Exp $
Copyright (c) 2009 Frank Lahm <franklahm@gmail.com>
This program is free software; you can redistribute it and/or modify
GNU General Public License for more details.
*/
-/* According to man fsattr.5 we must define _ATFILE_SOURCE */
-#define _ATFILE_SOURCE
-
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif /* HAVE_CONFIG_H */
-#ifdef HAVE_EXT_ATTRS
-
-#include <errno.h>
#include <unistd.h>
+#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <dirent.h>
#include <atalk/adouble.h>
+#include <atalk/vfs.h>
#include <atalk/afp.h>
#include <atalk/logger.h>
+#include <atalk/ea.h>
#include "globals.h"
#include "volume.h"
static char *ea_resourcefork = "com.apple.ResourceFork";
/* This should be big enough to consecutively store the names of all attributes */
-#define ATTRNAMEBUFSIZ 4096
static char attrnamebuf[ATTRNAMEBUFSIZ];
+#ifdef DEBUG
static void hexdump(void *m, size_t l) {
char *p = m;
int count = 0, len;
}
}
}
-
-static int getextattr_size(char *rbuf, int *rbuflen, char *uname, int oflag, char *attruname)
-{
- int ret, attrdirfd;
- uint32_t attrsize;
- struct stat st;
-
- LOG(log_debug7, logtype_afpd, "getextattr_size(%s): attribute: \"%s\"", uname, attruname);
-
- if ( -1 == (attrdirfd = attropen(uname, ".", O_RDONLY | oflag))) {
- if (errno == ELOOP) {
- /* its a symlink and client requested O_NOFOLLOW */
- LOG(log_debug, logtype_afpd, "getextattr_size(%s): encountered symlink with kXAttrNoFollow", uname);
-
- memset(rbuf, 0, 4);
- *rbuflen += 4;
-
- return AFP_OK;
- }
- LOG(log_error, logtype_afpd, "getextattr_size: attropen error: %s", strerror(errno));
- return AFPERR_MISC;
- }
-
- if ( -1 == (fstatat(attrdirfd, attruname, &st, 0))) {
- LOG(log_error, logtype_afpd, "getextattr_size: fstatat error: %s", strerror(errno));
- ret = AFPERR_MISC;
- goto exit;
- }
- attrsize = (st.st_size > MAX_EA_SIZE) ? MAX_EA_SIZE : st.st_size;
-
- /* Start building reply packet */
-
- LOG(log_debug7, logtype_afpd, "getextattr_size(%s): attribute: \"%s\", size: %u", uname, attruname, attrsize);
-
- /* length of attribute data */
- attrsize = htonl(attrsize);
- memcpy(rbuf, &attrsize, 4);
- *rbuflen += 4;
-
- ret = AFP_OK;
-
-exit:
- close(attrdirfd);
- return ret;
-}
-
-static int getextattr_content(char *rbuf, int *rbuflen, char *uname, int oflag, char *attruname, int maxreply)
-{
- int ret, attrdirfd;
- size_t toread, okread = 0, len;
- char *datalength;
- struct stat st;
-
- if ( -1 == (attrdirfd = attropen(uname, attruname, O_RDONLY | oflag))) {
- if (errno == ELOOP) {
- /* its a symlink and client requested O_NOFOLLOW */
- LOG(log_debug, logtype_afpd, "getextattr_content(%s): encountered symlink with kXAttrNoFollow", uname);
-
- memset(rbuf, 0, 4);
- *rbuflen += 4;
-
- return AFP_OK;
- }
- LOG(log_error, logtype_afpd, "getextattr_content(%s): attropen error: %s", attruname, strerror(errno));
- return AFPERR_MISC;
- }
-
- if ( -1 == (fstat(attrdirfd, &st))) {
- LOG(log_error, logtype_afpd, "getextattr_content(%s): fstatat error: %s", attruname,strerror(errno));
- ret = AFPERR_MISC;
- goto exit;
- }
-
- /* Start building reply packet */
-
- maxreply -= MAX_REPLY_EXTRA_BYTES;
- if (maxreply > MAX_EA_SIZE)
- maxreply = MAX_EA_SIZE;
-
- /* But never send more than the client requested */
- toread = (maxreply < st.st_size) ? maxreply : st.st_size;
-
- LOG(log_debug7, logtype_afpd, "getextattr_content(%s): attribute: \"%s\", size: %u", uname, attruname, maxreply);
-
- /* remember where we must store length of attribute data in rbuf */
- datalength = rbuf;
- rbuf += 4;
- *rbuflen += 4;
-
- while (1) {
- len = read(attrdirfd, rbuf, toread);
- if (len == -1) {
- LOG(log_error, logtype_afpd, "getextattr_content(%s): read error: %s", attruname, strerror(errno));
- ret = AFPERR_MISC;
- goto exit;
- }
- okread += len;
- rbuf += len;
- *rbuflen += len;
- if ((len == 0) || (okread == toread))
- break;
- }
-
- okread = htonl((uint32_t)okread);
- memcpy(datalength, &okread, 4);
-
- ret = AFP_OK;
-
-exit:
- close(attrdirfd);
- return ret;
-}
-
-int list_extattr(AFPObj *obj, char *attrnamebuf, int *buflen, char *uname, int oflag)
-{
- int ret, attrbuflen = *buflen, len, attrdirfd = 0;
- struct dirent *dp;
- DIR *dirp = NULL;
-
- /* Now list file attribute dir */
- if ( -1 == (attrdirfd = attropen( uname, ".", O_RDONLY | oflag))) {
- if (errno == ELOOP) {
- /* its a symlink and client requested O_NOFOLLOW */
- ret = AFPERR_BADTYPE;
- goto exit;
- }
- LOG(log_error, logtype_afpd, "list_extattr(%s): error opening atttribute dir: %s", uname, strerror(errno));
- ret = AFPERR_MISC;
- goto exit;
- }
-
- if (NULL == (dirp = fdopendir(attrdirfd))) {
- LOG(log_error, logtype_afpd, "list_extattr(%s): error opening atttribute dir: %s", uname, strerror(errno));
- ret = AFPERR_MISC;
- goto exit;
- }
-
- while ((dp = readdir(dirp))) {
- /* check if its "." or ".." */
- if ((strcmp(dp->d_name, ".") == 0) || (strcmp(dp->d_name, "..") == 0) ||
- (strcmp(dp->d_name, "SUNWattr_ro") == 0) || (strcmp(dp->d_name, "SUNWattr_rw") == 0))
- continue;
-
- len = strlen(dp->d_name);
-
- if ( 0 >= ( len = convert_string(obj->options.unixcharset, CH_UTF8_MAC, dp->d_name, len, attrnamebuf + attrbuflen, 255)) ) {
- ret = AFPERR_MISC;
- goto exit;
- }
- if (len == 255)
- /* convert_string didn't 0-terminate */
- attrnamebuf[attrbuflen + 255] = 0;
-
- LOG(log_debug7, logtype_afpd, "list_extattr(%s): attribute: %s", uname, dp->d_name);
-
- attrbuflen += len + 1;
- if (attrbuflen > (ATTRNAMEBUFSIZ - 256)) {
- /* Next EA name could overflow, so bail out with error.
- FIXME: evantually malloc/memcpy/realloc whatever.
- Is it worth it ? */
- LOG(log_warning, logtype_afpd, "list_extattr(%s): running out of buffer for EA names", uname);
- ret = AFPERR_MISC;
- goto exit;
- }
- }
-
- ret = AFP_OK;
-
-exit:
- if (dirp)
- closedir(dirp);
-
- if (attrdirfd > 0)
- close(attrdirfd);
-
- *buflen = attrbuflen;
- return ret;
-}
+#endif
/***************************************
- * Interface
+ * AFP funcs
****************************************/
/*
EA names, secondly it wants these names. In order to avoid scanning EAs twice
we cache them in a static buffer.
*/
-int afp_listextattr(AFPObj *obj, char *ibuf, int ibuflen _U_, char *rbuf, int *rbuflen)
+int afp_listextattr(AFPObj *obj, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
{
- int count, ret, oflag = 0;
- uint16_t vid, bitmap;
- uint32_t did, maxreply;
+ int ret, oflag = 0, adflags = 0;
+ uint16_t vid, bitmap, uint16;
+ uint32_t did, maxreply, tmpattr;
struct vol *vol;
struct dir *dir;
struct path *s_path;
+ struct stat st;
struct adouble ad, *adp = NULL;
struct ofork *of;
char *uname, *FinderInfo;
- static int buf_valid = 0, attrbuflen = 0;
+ char emptyFinderInfo[32] = { 0 };
-#ifdef DEBUG
- LOG(log_debug9, logtype_afpd, "afp_listextattr: BEGIN");
-#endif
+ static int buf_valid = 0;
+ static size_t attrbuflen = 0;
*rbuflen = 0;
ibuf += 2;
bitmap = ntohs( bitmap );
ibuf += 2;
+#ifdef HAVE_SOLARIS_EAS
if (bitmap & kXAttrNoFollow)
oflag = O_NOFOLLOW;
-
+#endif
/* Skip ReqCount, StartIndex and maxreply*/
ibuf += 10;
adp = &ad;
}
- if ( ad_metadata( uname, 0, adp) < 0 ) {
+ stat(uname, &st);
+ if (S_ISDIR(st.st_mode))
+ adflags = ADFLAGS_DIR;
+
+ if ( ad_metadata( uname, adflags, adp) < 0 ) {
switch (errno) {
case EACCES:
LOG(log_error, logtype_afpd, "afp_listextattr(%s): %s: check resource fork permission?",
}
FinderInfo = ad_entry(adp, ADEID_FINDERI);
+
#ifdef DEBUG
- LOG(log_debug9, logtype_afpd, "afp_listextattr(%s): FinderInfo:", uname);
+ LOG(log_maxdebug, logtype_afpd, "afp_listextattr(%s): FinderInfo:", uname);
hexdump( FinderInfo, 32);
#endif
- /* Now scan FinderInfo if its all 0 */
- count = 32;
- while (count--) {
- if (*FinderInfo++) {
- /* FinderInfo contains some non 0 bytes -> include "com.apple.FinderInfo" */
- strcpy(attrnamebuf, ea_finderinfo);
- attrbuflen += strlen(ea_finderinfo) + 1;
- LOG(log_debug7, logtype_afpd, "afp_listextattr(%s): sending com.apple.FinderInfo", uname);
- break;
- }
+ if ((adflags & ADFLAGS_DIR)) {
+ /* set default view */
+ uint16 = htons(FINDERINFO_CLOSEDVIEW);
+ memcpy(emptyFinderInfo + FINDERINFO_FRVIEWOFF, &uint16, 2);
+ }
+
+ /* Check if FinderInfo equals default and empty FinderInfo*/
+ if ((memcmp(FinderInfo, emptyFinderInfo, 32)) != 0) {
+ /* FinderInfo contains some non 0 bytes -> include "com.apple.FinderInfo" */
+ strcpy(attrnamebuf, ea_finderinfo);
+ attrbuflen += strlen(ea_finderinfo) + 1;
+ LOG(log_debug7, logtype_afpd, "afp_listextattr(%s): sending com.apple.FinderInfo", uname);
}
/* Now check for Ressource fork and add virtual EA "com.apple.ResourceFork" if size > 0 */
attrbuflen += strlen(ea_resourcefork) + 1;
}
- ret = list_extattr(obj, attrnamebuf, &attrbuflen, uname, oflag);
+ ret = vol->vfs->vfs_ea_list(vol, attrnamebuf, &attrbuflen, uname, oflag);
+
switch (ret) {
case AFPERR_BADTYPE:
/* its a symlink and client requested O_NOFOLLOW */
rbuf += 2;
*rbuflen += 2;
- attrbuflen = htonl(attrbuflen);
- memcpy( rbuf, &attrbuflen, 4);
+ tmpattr = htonl(attrbuflen);
+ memcpy( rbuf, &tmpattr, 4);
rbuf += 4;
*rbuflen += 4;
if (adp)
ad_close_metadata( adp);
- LOG(log_debug9, logtype_afpd, "afp_listextattr: END");
return ret;
}
-int afp_getextattr(AFPObj *obj _U_, char *ibuf, int ibuflen _U_, char *rbuf, int *rbuflen)
+int afp_getextattr(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
{
int ret, oflag = 0;
uint16_t vid, bitmap;
struct path *s_path;
-#ifdef DEBUG
- LOG(log_debug9, logtype_afpd, "afp_getextattr: BEGIN");
-#endif
-
*rbuflen = 0;
ibuf += 2;
memcpy( &bitmap, ibuf, 2);
bitmap = ntohs( bitmap );
ibuf += 2;
+
+#ifdef HAVE_SOLARIS_EAS
if (bitmap & kXAttrNoFollow)
- oflag = AT_SYMLINK_NOFOLLOW;
+ oflag = O_NOFOLLOW;
+#endif
/* Skip Offset and ReqCount */
ibuf += 16;
if its non 0 we must return the attribute.
*/
if (maxreply == 0)
- ret = getextattr_size(rbuf, rbuflen, s_path->u_name, oflag, attruname);
+ ret = vol->vfs->vfs_ea_getsize(vol, rbuf, rbuflen, s_path->u_name, oflag, attruname);
else
- ret = getextattr_content(rbuf, rbuflen, s_path->u_name, oflag, attruname, maxreply);
-
-#ifdef DEBUG
- LOG(log_debug9, logtype_afpd, "afp_getextattr: END");
-#endif
+ ret = vol->vfs->vfs_ea_getcontent(vol, rbuf, rbuflen, s_path->u_name, oflag, attruname, maxreply);
return ret;
}
-int afp_setextattr(AFPObj *obj _U_, char *ibuf, int ibuflen _U_, char *rbuf, int *rbuflen)
+int afp_setextattr(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
{
- int len, oflag = O_CREAT | O_WRONLY, attrdirfd;
+ int oflag = O_CREAT | O_WRONLY, ret;
uint16_t vid, bitmap;
uint32_t did, attrnamelen, attrsize;
char attrmname[256], attruname[256];
struct dir *dir;
struct path *s_path;
-#ifdef DEBUG
- LOG(log_debug9, logtype_afpd, "afp_setextattr: BEGIN");
-#endif
-
*rbuflen = 0;
ibuf += 2;
memcpy( &bitmap, ibuf, 2);
bitmap = ntohs( bitmap );
ibuf += 2;
+
+#ifdef HAVE_SOLARIS_EAS
if (bitmap & kXAttrNoFollow)
oflag |= AT_SYMLINK_NOFOLLOW;
+#endif
+
if (bitmap & kXAttrCreate)
oflag |= O_EXCL;
else if (bitmap & kXAttrReplace)
LOG(log_debug, logtype_afpd, "afp_setextattr(%s): EA: %s, size: %u", s_path->u_name, attrmname, attrsize);
- if ( -1 == (attrdirfd = attropen(s_path->u_name, attruname, oflag, 0666))) {
- if (errno == ELOOP) {
- /* its a symlink and client requested O_NOFOLLOW */
- LOG(log_debug, logtype_afpd, "afp_setextattr(%s): encountered symlink with kXAttrNoFollow", s_path->u_name);
- return AFP_OK;
- }
- LOG(log_error, logtype_afpd, "afp_setextattr(%s): attropen error: %s", s_path->u_name, strerror(errno));
- return AFPERR_MISC;
- }
-
- while (1) {
- len = write(attrdirfd, ibuf, attrsize);
- if (len == -1) {
- LOG(log_error, logtype_afpd, "afp_setextattr(%s): read error: %s", attruname, strerror(errno));
- return AFPERR_MISC;
- }
- attrsize -= len;
- ibuf += len;
- if (attrsize == 0)
- break;
- }
-
-#ifdef DEBUG
- LOG(log_debug9, logtype_afpd, "afp_setextattr: END");
-#endif
+ ret = vol->vfs->vfs_ea_set(vol, s_path->u_name, attruname, ibuf, attrsize, oflag);
- return AFP_OK;
+ return ret;
}
-int afp_remextattr(AFPObj *obj _U_, char *ibuf, int ibuflen _U_, char *rbuf, int *rbuflen)
+int afp_remextattr(AFPObj *obj _U_, char *ibuf, size_t ibuflen _U_, char *rbuf, size_t *rbuflen)
{
- int oflag = O_RDONLY, attrdirfd;
+ int oflag = O_RDONLY, ret;
uint16_t vid, bitmap;
uint32_t did, attrnamelen;
char attrmname[256], attruname[256];
struct dir *dir;
struct path *s_path;
-#ifdef DEBUG
- LOG(log_debug9, logtype_afpd, "afp_remextattr: BEGIN");
-#endif
-
*rbuflen = 0;
ibuf += 2;
memcpy( &bitmap, ibuf, 2);
bitmap = ntohs( bitmap );
ibuf += 2;
+
+#ifdef HAVE_SOLARIS_EAS
if (bitmap & kXAttrNoFollow)
oflag |= AT_SYMLINK_NOFOLLOW;
+#endif
/* get name */
if (NULL == ( s_path = cname( vol, dir, &ibuf )) ) {
LOG(log_debug, logtype_afpd, "afp_remextattr(%s): EA: %s", s_path->u_name, attrmname);
- if ( -1 == (attrdirfd = attropen(s_path->u_name, ".", oflag))) {
- switch (errno) {
- case ELOOP:
- /* its a symlink and client requested O_NOFOLLOW */
- LOG(log_debug, logtype_afpd, "afp_remextattr(%s): encountered symlink with kXAttrNoFollow", s_path->u_name);
- return AFP_OK;
- case EACCES:
- LOG(log_debug, logtype_afpd, "afp_remextattr(%s): unlinkat error: %s", s_path->u_name, strerror(errno));
- return AFPERR_ACCESS;
- default:
- LOG(log_error, logtype_afpd, "afp_remextattr(%s): attropen error: %s", s_path->u_name, strerror(errno));
- return AFPERR_MISC;
- }
- }
+ ret = vol->vfs->vfs_ea_remove(vol, s_path->u_name, attruname, oflag);
- if ( -1 == (unlinkat(attrdirfd, attruname, 0)) ) {
- if (errno == EACCES) {
- LOG(log_debug, logtype_afpd, "afp_remextattr(%s): unlinkat error: %s", s_path->u_name, strerror(errno));
- return AFPERR_ACCESS;
- }
- LOG(log_error, logtype_afpd, "afp_remextattr(%s): unlinkat error: %s", s_path->u_name, strerror(errno));
- return AFPERR_MISC;
- }
-
-#ifdef DEBUG
- LOG(log_debug9, logtype_afpd, "afp_remextattr: END");
-#endif
-
- return AFP_OK;
+ return ret;
}
-
-
-#endif /* HAVE_EXT_ATTRS */
-
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