/*
- $Id: ea_sys.c,v 1.3 2009-11-20 16:26:23 franklahm Exp $
Copyright (c) 2009 Frank Lahm <franklahm@gmail.com>
This program is free software; you can redistribute it and/or modify
#include <sys/stat.h>
#include <fcntl.h>
#include <dirent.h>
-
-#if HAVE_ATTR_XATTR_H
-#include <attr/xattr.h>
-#elif HAVE_SYS_XATTR_H
-#include <sys/xattr.h>
-#endif
-
-#ifdef HAVE_SYS_EA_H
-#include <sys/ea.h>
-#endif
-
-#ifdef HAVE_SYS_EXTATTR_H
-#include <sys/extattr.h>
-#endif
+#include <arpa/inet.h>
#include <atalk/adouble.h>
#include <atalk/ea.h>
#include <atalk/vfs.h>
#include <atalk/util.h>
#include <atalk/unix.h>
-
+#include <atalk/compat.h>
/**********************************************************************************
* EA VFS funcs for storing EAs in nativa filesystem EAs
}
if (ret == -1) {
+ memset(rbuf, 0, 4);
+ *rbuflen += 4;
switch(errno) {
- case ELOOP:
+ case OPEN_NOFOLLOW_ERRNO:
/* its a symlink and client requested O_NOFOLLOW */
- LOG(log_debug, logtype_afpd, "sys_getextattr_size(%s): encountered symlink with kXAttrNoFollow", uname);
+ LOG(log_debug, logtype_afpd, "sys_getextattr_size(%s): symlink with kXAttrNoFollow", uname);
+ return AFPERR_MISC;
- memset(rbuf, 0, 4);
- *rbuflen += 4;
+ case ENOATTR:
+ case ENOENT:
+ return AFPERR_MISC;
- return AFP_OK;
default:
- LOG(log_error, logtype_afpd, "sys_getextattr_size: error: %s", strerror(errno));
+ LOG(log_debug, logtype_afpd, "sys_getextattr_size: error: %s", strerror(errno));
return AFPERR_MISC;
}
}
ret = sys_getxattr(uname, attruname, rbuf +4, maxreply);
}
- if (ret == -1) switch(errno) {
- case ELOOP:
- /* its a symlink and client requested O_NOFOLLOW */
- LOG(log_debug, logtype_afpd, "sys_getextattr_content(%s): encountered symlink with kXAttrNoFollow", uname);
-
+ if (ret == -1) {
memset(rbuf, 0, 4);
*rbuflen += 4;
+ switch(errno) {
+ case OPEN_NOFOLLOW_ERRNO:
+ /* its a symlink and client requested O_NOFOLLOW */
+ LOG(log_debug, logtype_afpd, "sys_getextattr_content(%s): symlink with kXAttrNoFollow", uname);
+ return AFPERR_MISC;
- return AFP_OK;
- default:
- LOG(log_error, logtype_afpd, "sys_getextattr_content(%s): error: %s", attruname, strerror(errno));
- return AFPERR_MISC;
+ case ENOATTR:
+ return AFPERR_MISC;
+
+ default:
+ LOG(log_debug, logtype_afpd, "sys_getextattr_content(%s): error: %s", attruname, strerror(errno));
+ return AFPERR_MISC;
+ }
}
/* remember where we must store length of attribute data in rbuf */
*
* Copies names of all EAs of uname as consecutive C strings into rbuf.
* Increments *rbuflen accordingly.
+ * We hide the adouble:ea extended attributes here, but we currently
+ * allow reading, writing and deleteting them.
*/
int sys_list_eas(VFS_FUNC_ARGS_EA_LIST)
{
}
if (ret == -1) switch(errno) {
- case ELOOP:
- /* its a symlink and client requested O_NOFOLLOW */
- ret = AFPERR_BADTYPE;
+ case OPEN_NOFOLLOW_ERRNO:
+ /* its a symlink and client requested O_NOFOLLOW, we pretend 0 EAs */
+ LOG(log_debug, logtype_afpd, "sys_list_extattr(%s): symlink with kXAttrNoFollow", uname);
+ ret = AFP_OK;
+ goto exit;
default:
- LOG(log_error, logtype_afpd, "sys_list_extattr(%s): error opening atttribute dir: %s", uname, strerror(errno));
- ret= AFPERR_MISC;
+ LOG(log_debug, logtype_afpd, "sys_list_extattr(%s): error opening atttribute dir: %s", uname, strerror(errno));
+ ret = AFPERR_MISC;
+ goto exit;
}
ptr = buf;
while (ret > 0) {
len = strlen(ptr);
-
- /* Convert name to CH_UTF8_MAC and directly store in in the reply buffer */
- if ( 0 >= ( nlen = convert_string(vol->v_volcharset, CH_UTF8_MAC, ptr, len, attrnamebuf + attrbuflen, 256)) ) {
- ret = AFPERR_MISC;
- goto exit;
+ if (NOT_NETATALK_EA(ptr)) {
+ /* Convert name to CH_UTF8_MAC and directly store in in the reply buffer */
+ if ( 0 >= ( nlen = convert_string(vol->v_volcharset, CH_UTF8_MAC, ptr, len, attrnamebuf + attrbuflen, 256)) ) {
+ ret = AFPERR_MISC;
+ goto exit;
+ }
+
+ LOG(log_debug7, logtype_afpd, "sys_list_extattr(%s): attribute: %s", uname, ptr);
+
+ attrbuflen += nlen + 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, "sys_list_extattr(%s): running out of buffer for EA names", uname);
+ ret = AFPERR_MISC;
+ goto exit;
+ }
}
-
- LOG(log_debug7, logtype_afpd, "sys_list_extattr(%s): attribute: %s", uname, ptr);
-
- attrbuflen += nlen + 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, "sys_list_extattr(%s): running out of buffer for EA names", uname);
- ret = AFPERR_MISC;
- goto exit;
- }
- ret -= len +1;
- ptr += len +1;
+ ret -= len + 1;
+ ptr += len + 1;
}
ret = AFP_OK;
if (ret == -1) {
switch(errno) {
- case ELOOP:
+ case OPEN_NOFOLLOW_ERRNO:
/* its a symlink and client requested O_NOFOLLOW */
- LOG(log_debug, logtype_afpd, "sys_set_ea(%s/%s): encountered symlink with kXAttrNoFollow",
+ LOG(log_debug, logtype_afpd, "sys_set_ea(\"%s\", ea:'%s'): symlink with kXAttrNoFollow",
uname, attruname);
return AFP_OK;
+ case EEXIST:
+ LOG(log_debug, logtype_afpd, "sys_set_ea(\"%s/%s\", ea:'%s'): EA already exists",
+ getcwdpath(), uname, attruname);
+ return AFPERR_EXIST;
+ case ENOATTR:
+ case ENOENT:
+ if ((attr_flag & XATTR_REPLACE) && (vol->v_obj->afp_version >= 34))
+ return AFPERR_NOITEM;
+ return AFPERR_MISC;
default:
- LOG(log_error, logtype_afpd, "sys_set_ea(%s/%s): error: %s", uname, attruname, strerror(errno));
+ LOG(log_debug, logtype_afpd, "sys_set_ea(\"%s/%s\", ea:'%s', size: %u, flags: %s|%s|%s): %s",
+ getcwdpath(), uname, attruname, attrsize,
+ oflag & O_CREAT ? "XATTR_CREATE" : "-",
+ oflag & O_TRUNC ? "XATTR_REPLACE" : "-",
+ oflag & O_NOFOLLOW ? "O_NOFOLLOW" : "-",
+ strerror(errno));
return AFPERR_MISC;
}
}
if (ret == -1) {
switch(errno) {
- case ELOOP:
+ case OPEN_NOFOLLOW_ERRNO:
/* its a symlink and client requested O_NOFOLLOW */
- LOG(log_debug, logtype_afpd, "sys_remove_ea(%s/%s): encountered symlink with kXAttrNoFollow", uname);
+ LOG(log_debug, logtype_afpd, "sys_remove_ea(%s/%s): symlink with kXAttrNoFollow", uname);
return AFP_OK;
- case EACCES:
- LOG(log_debug, logtype_afpd, "sys_remove_ea(%s/%s): error: %s", uname, attruname, strerror(errno));
- return AFPERR_ACCESS;
default:
- LOG(log_error, logtype_afpd, "sys_remove_ea(%s/%s): error: %s", uname, attruname, strerror(errno));
+ LOG(log_debug, logtype_afpd, "sys_remove_ea(%s/%s): error: %s", uname, attruname, strerror(errno));
return AFPERR_MISC;
}
}
return AFP_OK;
}
-/* ---------------------
- copy EA
-*/
+/*
+ * @brief Copy EAs
+ *
+ * @note Supports *at semantics, therfor switches back and forth between sfd and cwd
+ */
int sys_ea_copyfile(VFS_FUNC_ARGS_COPYFILE)
{
int ret = 0;
+ int cwd = -1;
ssize_t size;
char *names = NULL, *end_names, *name, *value = NULL;
unsigned int setxattr_ENOTSUP = 0;
+ if (sfd != -1) {
+ if ((cwd = open(".", O_RDONLY)) == -1) {
+ LOG(log_error, logtype_afpd, "sys_ea_copyfile: cant open cwd: %s",
+ strerror(errno));
+ ret = -1;
+ goto getout;
+ }
+ }
+
+ if (sfd != -1) {
+ if (fchdir(sfd) == -1) {
+ LOG(log_error, logtype_afpd, "sys_ea_copyfile: cant chdir to sfd: %s",
+ strerror(errno));
+ ret = -1;
+ goto getout;
+ }
+ }
+
size = sys_listxattr(src, NULL, 0);
if (size < 0) {
if (errno != ENOSYS && errno != ENOTSUP) {
end_names = names + size;
}
+ if (sfd != -1) {
+ if (fchdir(cwd) == -1) {
+ LOG(log_error, logtype_afpd, "sys_ea_copyfile: cant chdir to cwd: %s",
+ strerror(errno));
+ ret = -1;
+ goto getout;
+ }
+ }
+
for (name = names; name != end_names; name = strchr(name, '\0') + 1) {
void *old_value;
if (!*name)
continue;
+ if (STRCMP(name, ==, AD_EA_META))
+ continue;
+
+ if (sfd != -1) {
+ if (fchdir(sfd) == -1) {
+ LOG(log_error, logtype_afpd, "sys_ea_copyfile: cant chdir to sfd: %s",
+ strerror(errno));
+ ret = -1;
+ goto getout;
+ }
+ }
+
size = sys_getxattr (src, name, NULL, 0);
if (size < 0) {
ret = -1;
ret = -1;
continue;
}
+
+ if (sfd != -1) {
+ if (fchdir(cwd) == -1) {
+ LOG(log_error, logtype_afpd, "sys_ea_copyfile: cant chdir to cwd: %s",
+ strerror(errno));
+ ret = -1;
+ goto getout;
+ }
+ }
+
if (sys_setxattr(dst, name, value, size, 0) != 0) {
if (errno == ENOTSUP)
setxattr_ENOTSUP++;
}
getout:
+ if (cwd != -1)
+ close(cwd);
+
free(value);
free(names);
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