/*
Bacula® - The Network Backup Solution
- Copyright (C) 2004-2009 Free Software Foundation Europe e.V.
+ Copyright (C) 2004-2010 Free Software Foundation Europe e.V.
The main author of Bacula is Kern Sibbald, with contributions from
many others, a complete list can be found in the file AUTHORS.
This program is Free Software; you can redistribute it and/or
- modify it under the terms of version two of the GNU General Public
+ modify it under the terms of version three of the GNU Affero General Public
License as published by the Free Software Foundation and included
in the file LICENSE.
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
- You should have received a copy of the GNU General Public License
+ You should have received a copy of the GNU Affero General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
(FSFE), Fiduciary Program, Sumatrastrasse 25, 8006 Zürich,
Switzerland, email:ftf@fsfeurope.org.
*/
-/*
+/**
* Functions to handle ACLs for bacula.
*
+ * Currently we support the following OSes:
+ * - AIX (pre-5.3 and post 5.3 acls, acl_get and aclx_get interface)
+ * - Darwin
+ * - FreeBSD (POSIX and NFSv4/ZFS acls)
+ * - HPUX
+ * - IRIX
+ * - Linux
+ * - Solaris (POSIX and NFSv4/ZFS acls)
+ * - Tru64
+ *
* We handle two different types of ACLs: access and default ACLS.
* On most systems that support default ACLs they only apply to directories.
*
#include "filed.h"
#if !defined(HAVE_ACL)
-/*
+/**
* Entry points when compiled without support for ACLs or on an unsupported platform.
*/
bacl_exit_code build_acl_streams(JCR *jcr, FF_PKT *ff_pkt)
return bacl_exit_fatal;
}
-bacl_exit_code parse_acl_stream(JCR *jcr, int stream)
+bacl_exit_code parse_acl_streams(JCR *jcr, int stream)
{
return bacl_exit_fatal;
}
#else
-/*
+/**
* Send an ACL stream to the SD.
*/
static bacl_exit_code send_acl_stream(JCR *jcr, int stream)
return bacl_exit_ok;
}
+/*
+ * First the native ACLs.
+ */
+#if defined(HAVE_ACL)
#if defined(HAVE_AIX_OS)
+#if defined(HAVE_EXTENDED_ACL)
+
+#include <sys/access.h>
+#include <sys/acl.h>
+
+static bool acl_is_trivial(struct acl *acl)
+{
+ return (acl_last(acl) != acl->acl_ext ? false : true);
+}
+
+static bool acl_nfs4_is_trivial(nfs4_acl_int_t *acl)
+{
+ return (acl->aclEntryN > 0 ? false : true);
+}
+
+/*
+ * Define the supported ACL streams for this OS
+ */
+static int os_access_acl_streams[3] = { STREAM_ACL_AIX_TEXT, STREAM_ACL_AIX_AIXC, STREAM_ACL_AIX_NFS4 };
+static int os_default_acl_streams[1] = { -1 };
+
+static bacl_exit_code aix_build_acl_streams(JCR *jcr, FF_PKT *ff_pkt)
+{
+ berrno be;
+ mode_t mode;
+ acl_type_t type;
+ size_t aclsize, acltxtsize;
+ bacl_exit_code retval = bacl_exit_error;
+ POOLMEM *aclbuf = get_pool_memory(PM_MESSAGE);
+
+ /*
+ * First see how big the buffers should be.
+ */
+ type.u64 = ACL_ANY;
+ if (aclx_get(jcr->last_fname, GET_ACLINFO_ONLY, &type, NULL, &aclsize, NULL) < 0) {
+ switch (errno) {
+ case ENOENT:
+ retval = bacl_exit_ok;
+ goto bail_out;
+ default:
+ Mmsg2(jcr->errmsg, _("aclx_get error on file \"%s\": ERR=%s\n"),
+ jcr->last_fname, be.bstrerror());
+ Dmsg2(100, "aclx_get error file=%s ERR=%s\n",
+ jcr->last_fname, be.bstrerror());
+ goto bail_out;
+ }
+ }
+
+ /*
+ * Make sure the buffers are big enough.
+ */
+ aclbuf = check_pool_memory_size(aclbuf, aclsize + 1);
+
+ /*
+ * Retrieve the ACL info.
+ */
+ if (aclx_get(jcr->last_fname, 0, &type, aclbuf, &aclsize, &mode) < 0) {
+ switch (errno) {
+ case ENOENT:
+ retval = bacl_exit_ok;
+ goto bail_out;
+ default:
+ Mmsg2(jcr->errmsg, _("aclx_get error on file \"%s\": ERR=%s\n"),
+ jcr->last_fname, be.bstrerror());
+ Dmsg2(100, "aclx_get error file=%s ERR=%s\n",
+ jcr->last_fname, be.bstrerror());
+ goto bail_out;
+ }
+ }
+
+ /*
+ * See if the acl is non trivial.
+ */
+ switch (type.u64) {
+ case ACL_AIXC:
+ if (acl_is_trivial((struct acl *)aclbuf)) {
+ retval = bacl_exit_ok;
+ goto bail_out;
+ }
+ break;
+ case ACL_NFS4:
+ if (acl_nfs4_is_trivial((nfs4_acl_int_t *)aclbuf)) {
+ retval = bacl_exit_ok;
+ goto bail_out;
+ }
+ break;
+ default:
+ Mmsg2(jcr->errmsg, _("Unknown acl type encountered on file \"%s\": %ld\n"),
+ jcr->last_fname, type.u64);
+ Dmsg2(100, "Unknown acl type encountered on file \"%s\": %ld\n",
+ jcr->last_fname, type.u64);
+ goto bail_out;
+ }
+
+ /*
+ * We have a non-trivial acl lets convert it into some ASCII form.
+ */
+ acltxtsize = sizeof_pool_memory(jcr->acl_data->content);
+ if (aclx_printStr(jcr->acl_data->content, &acltxtsize, aclbuf,
+ aclsize, type, jcr->last_fname, 0) < 0) {
+ switch (errno) {
+ case ENOSPC:
+ /*
+ * Our buffer is not big enough, acltxtsize should be updated with the value
+ * the aclx_printStr really need. So we increase the buffer and try again.
+ */
+ jcr->acl_data->content = check_pool_memory_size(jcr->acl_data->content, acltxtsize + 1);
+ if (aclx_printStr(jcr->acl_data->content, &acltxtsize, aclbuf,
+ aclsize, type, jcr->last_fname, 0) < 0) {
+ Mmsg1(jcr->errmsg, _("Failed to convert acl into text on file \"%s\"\n"),
+ jcr->last_fname);
+ Dmsg2(100, "Failed to convert acl into text on file \"%s\": %ld\n",
+ jcr->last_fname, type.u64);
+ goto bail_out;
+ }
+ break;
+ default:
+ Mmsg1(jcr->errmsg, _("Failed to convert acl into text on file \"%s\"\n"),
+ jcr->last_fname);
+ Dmsg2(100, "Failed to convert acl into text on file \"%s\": %ld\n",
+ jcr->last_fname, type.u64);
+ goto bail_out;
+ }
+ }
+
+ jcr->acl_data->content_length = strlen(jcr->acl_data->content) + 1;
+ switch (type.u64) {
+ case ACL_AIXC:
+ retval = send_acl_stream(jcr, STREAM_ACL_AIX_AIXC);
+ case ACL_NFS4:
+ retval = send_acl_stream(jcr, STREAM_ACL_AIX_NFS4);
+ }
+
+bail_out:
+ free_pool_memory(aclbuf);
+
+ return retval;
+}
+
+static bacl_exit_code aix_parse_acl_streams(JCR *jcr, int stream)
+{
+ int cnt;
+ berrno be;
+ acl_type_t type;
+ size_t aclsize;
+ bacl_exit_code retval = bacl_exit_error;
+ POOLMEM *aclbuf = get_pool_memory(PM_MESSAGE);
+
+ switch (stream) {
+ case STREAM_ACL_AIX_TEXT:
+ /*
+ * Handle the old stream using the old system call for now.
+ */
+ if (acl_put(jcr->last_fname, jcr->acl_data->content, 0) != 0) {
+ retval = bacl_exit_error;
+ goto bail_out;
+ }
+ retval = bacl_exit_ok;
+ goto bail_out;
+ case STREAM_ACL_AIX_AIXC:
+ type.u64 = ACL_AIXC;
+ break;
+ case STREAM_ACL_AIX_NFS4:
+ type.u64 = ACL_NFS4;
+ break;
+ default:
+ goto bail_out;
+ } /* end switch (stream) */
+
+ /*
+ * Set the acl buffer to an initial size. For now we set it
+ * to the same size as the ASCII representation.
+ */
+ aclbuf = check_pool_memory_size(aclbuf, jcr->acl_data->content_length);
+ aclsize = jcr->acl_data->content_length;
+ if (aclx_scanStr(jcr->acl_data->content, aclbuf, &aclsize, type) < 0) {
+ switch (errno) {
+ case ENOSPC:
+ /*
+ * The buffer isn't big enough. The man page doesn't say that aclsize
+ * is updated to the needed size as what is done with aclx_printStr.
+ * So for now we try to increase the buffer a maximum of 3 times
+ * and retry the conversion.
+ */
+ for (cnt = 0; cnt < 3; cnt++) {
+ aclsize = 2 * aclsize;
+ aclbuf = check_pool_memory_size(aclbuf, aclsize);
+
+ if (aclx_scanStr(jcr->acl_data->content, aclbuf, &aclsize, type) == 0) {
+ break;
+ }
+
+ /*
+ * See why we failed this time, ENOSPC retry if max retries not met,
+ * otherwise abort.
+ */
+ switch (errno) {
+ case ENOSPC:
+ if (cnt < 3) {
+ continue;
+ }
+ /* FALL THROUGH */
+ default:
+ Mmsg2(jcr->errmsg, _("aclx_scanStr error on file \"%s\": ERR=%s\n"),
+ jcr->last_fname, be.bstrerror());
+ Dmsg2(100, "aclx_scanStr error file=%s ERR=%s\n",
+ jcr->last_fname, be.bstrerror());
+ goto bail_out;
+ }
+ }
+ break;
+ default:
+ Mmsg2(jcr->errmsg, _("aclx_scanStr error on file \"%s\": ERR=%s\n"),
+ jcr->last_fname, be.bstrerror());
+ Dmsg2(100, "aclx_scanStr error file=%s ERR=%s\n",
+ jcr->last_fname, be.bstrerror());
+ }
+ }
+
+ if (aclx_put(jcr->last_fname, SET_ACL, type, aclbuf, aclsize, 0) < 0) {
+ switch (errno) {
+ case ENOENT:
+ retval = bacl_exit_ok;
+ goto bail_out;
+ default:
+ Mmsg2(jcr->errmsg, _("aclx_put error on file \"%s\": ERR=%s\n"),
+ jcr->last_fname, be.bstrerror());
+ Dmsg2(100, "aclx_put error file=%s ERR=%s\n",
+ jcr->last_fname, be.bstrerror());
+ goto bail_out;
+ }
+ }
+
+ retval = bacl_exit_ok;
+
+bail_out:
+ free_pool_memory(aclbuf);
+
+ return retval;
+}
+
+#else /* HAVE_EXTENDED_ACL */
+
#include <sys/access.h>
/*
}
return bacl_exit_ok;
}
+#endif /* HAVE_EXTENDED_ACL */
/*
* For this OS setup the build and parse function pointer to the OS specific functions.
#error "configure failed to detect availability of sys/acl.h"
#endif
-/* On IRIX we can get shortened ACLs */
+/*
+ * On IRIX we can get shortened ACLs
+ */
#if defined(HAVE_IRIX_OS) && defined(BACL_WANT_SHORT_ACLS)
#define acl_to_text(acl,len) acl_to_short_text((acl), (len))
#endif
-/* In Linux we can get numeric and/or shorted ACLs */
+/*
+ * On Linux we can get numeric and/or shorted ACLs
+ */
#if defined(HAVE_LINUX_OS)
#if defined(BACL_WANT_SHORT_ACLS) && defined(BACL_WANT_NUMERIC_IDS)
#define BACL_ALTERNATE_TEXT (TEXT_ABBREVIATE|TEXT_NUMERIC_IDS)
#endif
#endif
+/*
+ * On FreeBSD we can get numeric ACLs
+ */
+#if defined(HAVE_FREEBSD_OS)
+#if defined(BACL_WANT_NUMERIC_IDS)
+#define BACL_ALTERNATE_TEXT ACL_TEXT_NUMERIC_IDS
+#endif
+#ifdef BACL_ALTERNATE_TEXT
+#define acl_to_text(acl,len) (acl_to_text_np((acl), (len), BACL_ALTERNATE_TEXT))
+#endif
+#endif
+
/*
* Some generic functions used by multiple OSes.
*/
case BACL_TYPE_DEFAULT:
ostype = ACL_TYPE_DEFAULT;
break;
-
-#ifdef ACL_TYPE_DEFAULT_DIR
+#ifdef HAVE_ACL_TYPE_NFS4
+ /*
+ * FreeBSD has an additional acl type named ACL_TYPE_NFS4.
+ */
+ case BACL_TYPE_NFS4:
+ ostype = ACL_TYPE_NFS4;
+ break;
+#endif
+#ifdef HAVE_ACL_TYPE_DEFAULT_DIR
case BACL_TYPE_DEFAULT_DIR:
/*
- * OSF1 has an additional acl type named ACL_TYPE_DEFAULT_DIR.
+ * TRU64 has an additional acl type named ACL_TYPE_DEFAULT_DIR.
*/
ostype = ACL_TYPE_DEFAULT_DIR;
break;
#endif
-#ifdef ACL_TYPE_EXTENDED
+#ifdef HAVE_ACL_TYPE_EXTENDED
case BACL_TYPE_EXTENDED:
/*
* MacOSX has an additional acl type named ACL_TYPE_EXTENDED.
return ostype;
}
+static int acl_count_entries(acl_t acl)
+{
+ int count = 0;
+#if defined(HAVE_FREEBSD_OS) || \
+ defined(HAVE_LINUX_OS)
+ acl_entry_t ace;
+ int entry_available;
+
+ entry_available = acl_get_entry(acl, ACL_FIRST_ENTRY, &ace);
+ while (entry_available == 1) {
+ count++;
+ entry_available = acl_get_entry(acl, ACL_NEXT_ENTRY, &ace);
+ }
+#elif defined(HAVE_IRIX_OS)
+ count = acl->acl_cnt;
+#elif defined(HAVE_OSF1_OS)
+ count = acl->acl_num;
+#elif defined(HAVE_DARWIN_OS)
+ acl_entry_t ace;
+ int entry_available;
+
+ entry_available = acl_get_entry(acl, ACL_FIRST_ENTRY, &ace);
+ while (entry_available == 0) {
+ count++;
+ entry_available = acl_get_entry(acl, ACL_NEXT_ENTRY, &ace);
+ }
+#endif
+ return count;
+}
+
#if !defined(HAVE_DARWIN_OS)
/*
* See if an acl is a trivial one (e.g. just the stat bits encoded as acl.)
}
#endif
-/*
+/**
* Generic wrapper around acl_get_file call.
*/
static bacl_exit_code generic_get_acl_from_os(JCR *jcr, bacl_type acltype)
acl_type_t ostype;
char *acl_text;
berrno be;
+ bacl_exit_code retval = bacl_exit_ok;
ostype = bac_to_os_acltype(acltype);
acl = acl_get_file(jcr->last_fname, ostype);
if (acl) {
-#if defined(HAVE_IRIX_OS)
- /*
+ /**
* From observation, IRIX's acl_get_file() seems to return a
* non-NULL acl with a count field of -1 when a file has no ACL
* defined, while IRIX's acl_to_text() returns NULL when presented
* with such an ACL.
*
- * Checking the count in the acl structure before calling
- * acl_to_text() lets us avoid error messages about files
- * with no ACLs, without modifying the flow of the code used for
- * other operating systems, and it saves making some calls
- * to acl_to_text() besides.
+ * For all other implmentations we check if there are more then
+ * zero entries in the acl returned.
*/
- if (acl->acl_cnt <= 0) {
- pm_strcpy(jcr->acl_data->content, "");
- jcr->acl_data->content_length = 0;
- acl_free(acl);
- return bacl_exit_ok;
+ if (acl_count_entries(acl) <= 0) {
+ goto bail_out;
}
-#endif
-#if !defined(HAVE_DARWIN_OS)
/*
* Make sure this is not just a trivial ACL.
*/
+#if !defined(HAVE_DARWIN_OS)
if (acltype == BACL_TYPE_ACCESS && acl_is_trivial(acl)) {
/*
* The ACLs simply reflect the (already known) standard permissions
* So we don't send an ACL stream to the SD.
*/
- pm_strcpy(jcr->acl_data->content, "");
- jcr->acl_data->content_length = 0;
- acl_free(acl);
- return bacl_exit_ok;
+ goto bail_out;
+ }
+#endif
+#if defined(HAVE_FREEBSD_OS) && defined(_PC_ACL_NFS4)
+ if (acltype == BACL_TYPE_NFS4) {
+ int trivial;
+ if (acl_is_trivial_np(acl, &trivial) == 0) {
+ if (trivial == 1) {
+ /*
+ * The ACLs simply reflect the (already known) standard permissions
+ * So we don't send an ACL stream to the SD.
+ */
+ goto bail_out;
+ }
+ }
}
#endif
+ /*
+ * Convert the internal acl representation into a text representation.
+ */
if ((acl_text = acl_to_text(acl, NULL)) != NULL) {
jcr->acl_data->content_length = pm_strcpy(jcr->acl_data->content, acl_text);
acl_free(acl);
Dmsg2(100, "acl_to_text error file=%s ERR=%s\n",
jcr->last_fname, be.bstrerror());
- pm_strcpy(jcr->acl_data->content, "");
- jcr->acl_data->content_length = 0;
- acl_free(acl);
- return bacl_exit_error;
- }
-
- /*
- * Handle errors gracefully.
- */
- if (acl == (acl_t)NULL) {
+ retval = bacl_exit_error;
+ goto bail_out;
+ } else {
+ /*
+ * Handle errors gracefully.
+ */
switch (errno) {
#if defined(BACL_ENOTSUP)
case BACL_ENOTSUP:
- break; /* not supported */
+ /*
+ * If the filesystem reports it doesn't support ACLs we clear the
+ * BACL_FLAG_SAVE_NATIVE flag so we skip ACL saves on all other files
+ * on the same filesystem. The BACL_FLAG_SAVE_NATIVE flag gets set again
+ * when we change from one filesystem to an other.
+ */
+ jcr->acl_data->flags &= ~BACL_FLAG_SAVE_NATIVE;
+ goto bail_out;
#endif
case ENOENT:
- pm_strcpy(jcr->acl_data->content, "");
- jcr->acl_data->content_length = 0;
- return bacl_exit_ok;
+ goto bail_out;
default:
/* Some real error */
Mmsg2(jcr->errmsg, _("acl_get_file error on file \"%s\": ERR=%s\n"),
Dmsg2(100, "acl_get_file error file=%s ERR=%s\n",
jcr->last_fname, be.bstrerror());
- pm_strcpy(jcr->acl_data->content, "");
- jcr->acl_data->content_length = 0;
- return bacl_exit_error;
+ retval = bacl_exit_error;
+ goto bail_out;
}
}
- /*
- * Not supported, just pretend there is nothing to see
- */
+
+bail_out:
+ if (acl) {
+ acl_free(acl);
+ }
pm_strcpy(jcr->acl_data->content, "");
jcr->acl_data->content_length = 0;
- return bacl_exit_ok;
+ return retval;
}
-/*
+/**
* Generic wrapper around acl_set_file call.
*/
static bacl_exit_code generic_set_acl_on_os(JCR *jcr, bacl_type acltype)
switch (errno) {
case ENOENT:
return bacl_exit_ok;
+#if defined(BACL_ENOTSUP)
+ case BACL_ENOTSUP:
+ /*
+ * If the filesystem reports it doesn't support ACLs we clear the
+ * BACL_FLAG_RESTORE_NATIVE flag so we skip ACL restores on all other files
+ * on the same filesystem. The BACL_FLAG_RESTORE_NATIVE flag gets set again
+ * when we change from one filesystem to an other.
+ */
+ jcr->acl_data->flags &= ~BACL_FLAG_RESTORE_NATIVE;
+ Mmsg1(jcr->errmsg, _("acl_delete_def_file error on file \"%s\": filesystem doesn't support ACLs\n"),
+ jcr->last_fname);
+ return bacl_exit_error;
+#endif
default:
Mmsg2(jcr->errmsg, _("acl_delete_def_file error on file \"%s\": ERR=%s\n"),
jcr->last_fname, be.bstrerror());
}
#ifndef HAVE_FREEBSD_OS
- /*
+ /**
* FreeBSD always fails acl_valid() - at least on valid input...
* As it does the right thing, given valid input, just ignore acl_valid().
*/
}
#endif
- /*
+ /**
* Restore the ACLs, but don't complain about links which really should
* not have attributes, and the file it is linked to may not yet be restored.
* This is only true for the old acl streams as in the new implementation we
case ENOENT:
acl_free(acl);
return bacl_exit_ok;
+#if defined(BACL_ENOTSUP)
+ case BACL_ENOTSUP:
+ /*
+ * If the filesystem reports it doesn't support ACLs we clear the
+ * BACL_FLAG_RESTORE_NATIVE flag so we skip ACL restores on all other files
+ * on the same filesystem. The BACL_FLAG_RESTORE_NATIVE flag gets set again
+ * when we change from one filesystem to an other.
+ */
+ jcr->acl_data->flags &= ~BACL_FLAG_RESTORE_NATIVE;
+ Mmsg1(jcr->errmsg, _("acl_set_file error on file \"%s\": filesystem doesn't support ACLs\n"),
+ jcr->last_fname);
+ Dmsg2(100, "acl_set_file error acl=%s file=%s filesystem doesn't support ACLs\n",
+ jcr->acl_data->content, jcr->last_fname);
+ acl_free(acl);
+ return bacl_exit_error;
+#endif
default:
Mmsg2(jcr->errmsg, _("acl_set_file error on file \"%s\": ERR=%s\n"),
jcr->last_fname, be.bstrerror());
return bacl_exit_ok;
}
-/*
+/**
* OS specific functions for handling different types of acl streams.
*/
#if defined(HAVE_DARWIN_OS)
-/*
+/**
* Define the supported ACL streams for this OS
*/
static int os_access_acl_streams[1] = { STREAM_ACL_DARWIN_ACCESS_ACL };
static bacl_exit_code darwin_build_acl_streams(JCR *jcr, FF_PKT *ff_pkt)
{
-#if defined(ACL_TYPE_EXTENDED)
- /*
+#if defined(HAVE_ACL_TYPE_EXTENDED)
+ /**
* On MacOS X, acl_get_file (name, ACL_TYPE_ACCESS)
* and acl_get_file (name, ACL_TYPE_DEFAULT)
* always return NULL / EINVAL. There is no point in making
if (generic_get_acl_from_os(jcr, BACL_TYPE_EXTENDED) == bacl_exit_fatal)
return bacl_exit_fatal;
#else
- /*
+ /**
* Read access ACLs for files, dirs and links
*/
if (generic_get_acl_from_os(jcr, BACL_TYPE_ACCESS) == bacl_exit_fatal)
static bacl_exit_code darwin_parse_acl_streams(JCR *jcr, int stream)
{
-#if defined(ACL_TYPE_EXTENDED)
+#if defined(HAVE_ACL_TYPE_EXTENDED)
return generic_set_acl_on_os(jcr, BACL_TYPE_EXTENDED);
#else
return generic_set_acl_on_os(jcr, BACL_TYPE_ACCESS);
static bacl_exit_code (*os_build_acl_streams)(JCR *jcr, FF_PKT *ff_pkt) = darwin_build_acl_streams;
static bacl_exit_code (*os_parse_acl_streams)(JCR *jcr, int stream) = darwin_parse_acl_streams;
-#elif defined(HAVE_FREEBSD_OS) || \
- defined(HAVE_IRIX_OS) || \
- defined(HAVE_LINUX_OS)
-
+#elif defined(HAVE_FREEBSD_OS)
/*
* Define the supported ACL streams for these OSes
*/
-#if defined(HAVE_FREEBSD_OS)
-static int os_access_acl_streams[1] = { STREAM_ACL_FREEBSD_ACCESS_ACL };
+static int os_access_acl_streams[2] = { STREAM_ACL_FREEBSD_ACCESS_ACL, STREAM_ACL_FREEBSD_NFS4_ACL };
static int os_default_acl_streams[1] = { STREAM_ACL_FREEBSD_DEFAULT_ACL };
-#elif defined(HAVE_IRIX_OS)
+
+static bacl_exit_code freebsd_build_acl_streams(JCR *jcr, FF_PKT *ff_pkt)
+{
+ int acl_enabled = 0;
+ bacl_type acltype = BACL_TYPE_NONE;
+ berrno be;
+
+#if defined(_PC_ACL_NFS4)
+ /*
+ * See if filesystem supports NFS4 acls.
+ */
+ acl_enabled = pathconf(jcr->last_fname, _PC_ACL_NFS4);
+ switch (acl_enabled) {
+ case -1:
+ switch (errno) {
+ case ENOENT:
+ return bacl_exit_ok;
+ default:
+ Mmsg2(jcr->errmsg, _("pathconf error on file \"%s\": ERR=%s\n"),
+ jcr->last_fname, be.bstrerror());
+ Dmsg2(100, "pathconf error file=%s ERR=%s\n",
+ jcr->last_fname, be.bstrerror());
+ return bacl_exit_error;
+ }
+ case 0:
+ break;
+ default:
+ acltype = BACL_TYPE_NFS4;
+ break;
+ }
+#endif
+
+ if (acl_enabled == 0) {
+ /*
+ * See if filesystem supports POSIX acls.
+ */
+ acl_enabled = pathconf(jcr->last_fname, _PC_ACL_EXTENDED);
+ switch (acl_enabled) {
+ case -1:
+ switch (errno) {
+ case ENOENT:
+ return bacl_exit_ok;
+ default:
+ Mmsg2(jcr->errmsg, _("pathconf error on file \"%s\": ERR=%s\n"),
+ jcr->last_fname, be.bstrerror());
+ Dmsg2(100, "pathconf error file=%s ERR=%s\n",
+ jcr->last_fname, be.bstrerror());
+ return bacl_exit_error;
+ }
+ case 0:
+ break;
+ default:
+ acltype = BACL_TYPE_ACCESS;
+ break;
+ }
+ }
+
+ /*
+ * If the filesystem reports it doesn't support ACLs we clear the
+ * BACL_FLAG_SAVE_NATIVE flag so we skip ACL saves on all other files
+ * on the same filesystem. The BACL_FLAG_SAVE_NATIVE flag gets set again
+ * when we change from one filesystem to an other.
+ */
+ if (acl_enabled == 0) {
+ jcr->acl_data->flags &= ~BACL_FLAG_SAVE_NATIVE;
+ pm_strcpy(jcr->acl_data->content, "");
+ jcr->acl_data->content_length = 0;
+ return bacl_exit_ok;
+ }
+
+ /*
+ * Based on the supported ACLs retrieve and store them.
+ */
+ switch (acltype) {
+ case BACL_TYPE_NFS4:
+ /*
+ * Read NFS4 ACLs for files, dirs and links
+ */
+ if (generic_get_acl_from_os(jcr, BACL_TYPE_NFS4) == bacl_exit_fatal)
+ return bacl_exit_fatal;
+
+ if (jcr->acl_data->content_length > 0) {
+ if (send_acl_stream(jcr, STREAM_ACL_FREEBSD_NFS4_ACL) == bacl_exit_fatal)
+ return bacl_exit_fatal;
+ }
+ break;
+ case BACL_TYPE_ACCESS:
+ /*
+ * Read access ACLs for files, dirs and links
+ */
+ if (generic_get_acl_from_os(jcr, BACL_TYPE_ACCESS) == bacl_exit_fatal)
+ return bacl_exit_fatal;
+
+ if (jcr->acl_data->content_length > 0) {
+ if (send_acl_stream(jcr, STREAM_ACL_FREEBSD_ACCESS_ACL) == bacl_exit_fatal)
+ return bacl_exit_fatal;
+ }
+
+ /*
+ * Directories can have default ACLs too
+ */
+ if (ff_pkt->type == FT_DIREND) {
+ if (generic_get_acl_from_os(jcr, BACL_TYPE_DEFAULT) == bacl_exit_fatal)
+ return bacl_exit_fatal;
+ if (jcr->acl_data->content_length > 0) {
+ if (send_acl_stream(jcr, STREAM_ACL_FREEBSD_DEFAULT_ACL) == bacl_exit_fatal)
+ return bacl_exit_fatal;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ return bacl_exit_ok;
+}
+
+static bacl_exit_code freebsd_parse_acl_streams(JCR *jcr, int stream)
+{
+ int acl_enabled = 0;
+ const char *acl_type_name;
+ berrno be;
+
+ /*
+ * First make sure the filesystem supports acls.
+ */
+ switch (stream) {
+ case STREAM_UNIX_ACCESS_ACL:
+ case STREAM_ACL_FREEBSD_ACCESS_ACL:
+ case STREAM_UNIX_DEFAULT_ACL:
+ case STREAM_ACL_FREEBSD_DEFAULT_ACL:
+ acl_enabled = pathconf(jcr->last_fname, _PC_ACL_EXTENDED);
+ acl_type_name = "POSIX";
+ break;
+ case STREAM_ACL_FREEBSD_NFS4_ACL:
+#if defined(_PC_ACL_NFS4)
+ acl_enabled = pathconf(jcr->last_fname, _PC_ACL_NFS4);
+#endif
+ acl_type_name = "NFS4";
+ break;
+ default:
+ acl_type_name = "unknown";
+ break;
+ }
+
+ switch (acl_enabled) {
+ case -1:
+ switch (errno) {
+ case ENOENT:
+ return bacl_exit_ok;
+ default:
+ Mmsg2(jcr->errmsg, _("pathconf error on file \"%s\": ERR=%s\n"),
+ jcr->last_fname, be.bstrerror());
+ Dmsg3(100, "pathconf error acl=%s file=%s ERR=%s\n",
+ jcr->acl_data->content, jcr->last_fname, be.bstrerror());
+ return bacl_exit_error;
+ }
+ case 0:
+ /*
+ * If the filesystem reports it doesn't support ACLs we clear the
+ * BACL_FLAG_RESTORE_NATIVE flag so we skip ACL restores on all other files
+ * on the same filesystem. The BACL_FLAG_RESTORE_NATIVE flag gets set again
+ * when we change from one filesystem to an other.
+ */
+ jcr->acl_data->flags &= ~BACL_FLAG_SAVE_NATIVE;
+ Mmsg2(jcr->errmsg, _("Trying to restore acl on file \"%s\" on filesystem without %s acl support\n"),
+ jcr->last_fname, acl_type_name);
+ return bacl_exit_error;
+ default:
+ break;
+ }
+
+ /*
+ * Restore the ACLs.
+ */
+ switch (stream) {
+ case STREAM_UNIX_ACCESS_ACL:
+ case STREAM_ACL_FREEBSD_ACCESS_ACL:
+ return generic_set_acl_on_os(jcr, BACL_TYPE_ACCESS);
+ case STREAM_UNIX_DEFAULT_ACL:
+ case STREAM_ACL_FREEBSD_DEFAULT_ACL:
+ return generic_set_acl_on_os(jcr, BACL_TYPE_DEFAULT);
+ case STREAM_ACL_FREEBSD_NFS4_ACL:
+ return generic_set_acl_on_os(jcr, BACL_TYPE_NFS4);
+ default:
+ break;
+ }
+ return bacl_exit_error;
+}
+
+/*
+ * For this OSes setup the build and parse function pointer to the OS specific functions.
+ */
+static bacl_exit_code (*os_build_acl_streams)(JCR *jcr, FF_PKT *ff_pkt) = freebsd_build_acl_streams;
+static bacl_exit_code (*os_parse_acl_streams)(JCR *jcr, int stream) = freebsd_parse_acl_streams;
+
+#elif defined(HAVE_IRIX_OS) || \
+ defined(HAVE_LINUX_OS)
+/*
+ * Define the supported ACL streams for these OSes
+ */
+#if defined(HAVE_IRIX_OS)
static int os_access_acl_streams[1] = { STREAM_ACL_IRIX_ACCESS_ACL };
static int os_default_acl_streams[1] = { STREAM_ACL_IRIX_DEFAULT_ACL };
#elif defined(HAVE_LINUX_OS)
if (!send_acl_stream(jcr, STREAM_ACL_TRU64_DEFAULT_ACL))
return bacl_exit_error;
}
- /*
+ /**
* Tru64 has next to BACL_TYPE_DEFAULT also BACL_TYPE_DEFAULT_DIR acls.
* This is an inherited acl for all subdirs.
* See http://www.helsinki.fi/atk/unix/dec_manuals/DOC_40D/AQ0R2DTE/DOCU_018.HTM
case BACL_ENOTSUP:
/*
* Not supported, just pretend there is nothing to see
+ *
+ * If the filesystem reports it doesn't support ACLs we clear the
+ * BACL_FLAG_SAVE_NATIVE flag so we skip ACL saves on all other files
+ * on the same filesystem. The BACL_FLAG_SAVE_NATIVE flag gets set again
+ * when we change from one filesystem to an other.
*/
+ jcr->acl_data->flags &= ~BACL_FLAG_SAVE_NATIVE;
pm_strcpy(jcr->acl_data->content, "");
jcr->acl_data->content_length = 0;
return bacl_exit_ok;
return bacl_exit_error;
}
- /*
+ /**
* Restore the ACLs, but don't complain about links which really should
* not have attributes, and the file it is linked to may not yet be restored.
* This is only true for the old acl streams as in the new implementation we
switch (errno) {
case ENOENT:
return bacl_exit_ok;
+#if defined(BACL_ENOTSUP)
+ case BACL_ENOTSUP:
+ /*
+ * If the filesystem reports it doesn't support ACLs we clear the
+ * BACL_FLAG_RESTORE_NATIVE flag so we skip ACL restores on all other files
+ * on the same filesystem. The BACL_FLAG_RESTORE_NATIVE flag gets set again
+ * when we change from one filesystem to an other.
+ */
+ jcr->acl_data->flags &= ~BACL_FLAG_SAVE_NATIVE;
+ Mmsg1(jcr->errmsg, _("setacl error on file \"%s\": filesystem doesn't support ACLs\n"),
+ jcr->last_fname);
+ Dmsg2(100, "setacl error acl=%s file=%s filesystem doesn't support ACLs\n",
+ jcr->acl_data->content, jcr->last_fname);
+ return bacl_exit_error;
+#endif
default:
Mmsg2(jcr->errmsg, _("setacl error on file \"%s\": ERR=%s\n"),
jcr->last_fname, be.bstrerror());
#endif
#if defined(HAVE_EXTENDED_ACL)
-/*
+/**
* We define some internals of the Solaris acl libs here as those
* are not exposed yet. Probably because they want us to see the
* acls as opague data. But as we need to support different platforms
} acl_type_t;
#endif
-/*
+/**
* Two external references to functions in the libsec library function not in current include files.
*/
extern "C" {
static int os_access_acl_streams[2] = { STREAM_ACL_SOLARIS_ACLENT, STREAM_ACL_SOLARIS_ACE };
static int os_default_acl_streams[1] = { -1 };
-/*
+/**
* As the new libsec interface with acl_totext and acl_fromtext also handles
* the old format from acltotext we can use the new functions even
* for acls retrieved and stored in the database with older fd versions. If the
acl_enabled = pathconf(jcr->last_fname, _PC_ACL_ENABLED);
switch (acl_enabled) {
case 0:
+ /*
+ * If the filesystem reports it doesn't support ACLs we clear the
+ * BACL_FLAG_SAVE_NATIVE flag so we skip ACL saves on all other files
+ * on the same filesystem. The BACL_FLAG_SAVE_NATIVE flag gets set again
+ * when we change from one filesystem to an other.
+ */
+ jcr->acl_data->flags &= ~BACL_FLAG_SAVE_NATIVE;
pm_strcpy(jcr->acl_data->content, "");
jcr->acl_data->content_length = 0;
return bacl_exit_ok;
acl_enabled = pathconf(jcr->last_fname, _PC_ACL_ENABLED);
switch (acl_enabled) {
case 0:
+ /*
+ * If the filesystem reports it doesn't support ACLs we clear the
+ * BACL_FLAG_RESTORE_NATIVE flag so we skip ACL restores on all other files
+ * on the same filesystem. The BACL_FLAG_RESTORE_NATIVE flag gets set again
+ * when we change from one filesystem to an other.
+ */
+ jcr->acl_data->flags &= ~BACL_FLAG_RESTORE_NATIVE;
Mmsg1(jcr->errmsg, _("Trying to restore acl on file \"%s\" on filesystem without acl support\n"),
jcr->last_fname);
return bacl_exit_error;
}
default:
/*
- * On a filesystem with ACL support make sure this particilar ACL type can be restored.
+ * On a filesystem with ACL support make sure this particular ACL type can be restored.
*/
switch (stream) {
case STREAM_ACL_SOLARIS_ACLENT:
break;
}
- /*
+ /**
* Restore the ACLs, but don't complain about links which really should
* not have attributes, and the file it is linked to may not yet be restored.
* This is only true for the old acl streams as in the new implementation we
static bacl_exit_code (*os_parse_acl_streams)(JCR *jcr, int stream) = solaris_parse_acl_streams;
#endif /* HAVE_SUN_OS */
+#endif /* HAVE_ACL */
/*
* Entry points when compiled with support for ACLs on a supported platform.
*/
-/*
+/**
* Read and send an ACL for the last encountered file.
*/
bacl_exit_code build_acl_streams(JCR *jcr, FF_PKT *ff_pkt)
{
/*
- * Call the appropriate function.
+ * See if we are changing from one device to an other.
+ * We save the current device we are restoring to and compare
+ * it with the current st_dev in the last stat performed on
+ * the file we are currently storing.
*/
- if (os_build_acl_streams) {
- return (*os_build_acl_streams)(jcr, ff_pkt);
+ if (jcr->acl_data->current_dev != ff_pkt->statp.st_dev) {
+ /*
+ * Reset the acl save flags.
+ */
+ jcr->acl_data->flags = 0;
+
+ jcr->acl_data->flags |= BACL_FLAG_SAVE_NATIVE;
+
+ /**
+ * Save that we started scanning a new filesystem.
+ */
+ jcr->acl_data->current_dev = ff_pkt->statp.st_dev;
}
+
+#if defined(HAVE_ACL)
+ /*
+ * See if the BACL_FLAG_SAVE_NATIVE flag is set which lets us know if we should
+ * save native ACLs.
+ */
+ if (jcr->acl_data->flags & BACL_FLAG_SAVE_NATIVE) {
+ /*
+ * Call the appropriate function.
+ */
+ if (os_build_acl_streams) {
+ return os_build_acl_streams(jcr, ff_pkt);
+ }
+ } else {
+ return bacl_exit_ok;
+ }
+#endif
return bacl_exit_error;
}
bacl_exit_code parse_acl_streams(JCR *jcr, int stream)
{
+ int ret;
+ berrno be;
+ struct stat st;
unsigned int cnt;
+ /*
+ * See if we are changing from one device to an other.
+ * We save the current device we are restoring to and compare
+ * it with the current st_dev in the last stat performed on
+ * the file we are currently restoring.
+ */
+ ret = lstat(jcr->last_fname, &st);
+ switch (ret) {
+ case -1:
+ switch (errno) {
+ case ENOENT:
+ return bacl_exit_ok;
+ default:
+ Mmsg2(jcr->errmsg, _("Unable to stat file \"%s\": ERR=%s\n"),
+ jcr->last_fname, be.bstrerror());
+ Dmsg2(100, "Unable to stat file \"%s\": ERR=%s\n",
+ jcr->last_fname, be.bstrerror());
+ return bacl_exit_error;
+ }
+ break;
+ case 0:
+ break;
+ }
+ if (jcr->acl_data->current_dev != st.st_dev) {
+ /*
+ * Reset the acl save flags.
+ */
+ jcr->acl_data->flags = 0;
+ jcr->acl_data->flags |= BACL_FLAG_RESTORE_NATIVE;
+
+ /*
+ * Save that we started restoring to a new filesystem.
+ */
+ jcr->acl_data->current_dev = st.st_dev;
+ }
+
switch (stream) {
+#if defined(HAVE_ACL)
case STREAM_UNIX_ACCESS_ACL:
case STREAM_UNIX_DEFAULT_ACL:
/*
* Handle legacy ACL streams.
*/
- if (os_parse_acl_streams) {
- return (*os_parse_acl_streams)(jcr, stream);
+ if ((jcr->acl_data->flags & BACL_FLAG_RESTORE_NATIVE) && os_parse_acl_streams) {
+ return os_parse_acl_streams(jcr, stream);
+ } else {
+ /*
+ * Increment error count but don't log an error again for the same filesystem.
+ */
+ jcr->acl_data->nr_errors++;
+ return bacl_exit_ok;
}
break;
default:
- if (os_parse_acl_streams) {
+ if ((jcr->acl_data->flags & BACL_FLAG_RESTORE_NATIVE) && os_parse_acl_streams) {
/*
* Walk the os_access_acl_streams array with the supported Access ACL streams for this OS.
*/
for (cnt = 0; cnt < sizeof(os_access_acl_streams) / sizeof(int); cnt++) {
if (os_access_acl_streams[cnt] == stream) {
- return (*os_parse_acl_streams)(jcr, stream);
+ return os_parse_acl_streams(jcr, stream);
}
}
/*
*/
for (cnt = 0; cnt < sizeof(os_default_acl_streams) / sizeof(int); cnt++) {
if (os_default_acl_streams[cnt] == stream) {
- return (*os_parse_acl_streams)(jcr, stream);
+ return os_parse_acl_streams(jcr, stream);
}
}
+ } else {
+ /*
+ * Increment error count but don't log an error again for the same filesystem.
+ */
+ jcr->acl_data->nr_errors++;
+ return bacl_exit_ok;
}
break;
+#else
+ default:
+ break;
+#endif
}
Qmsg2(jcr, M_WARNING, 0,
_("Can't restore ACLs of %s - incompatible acl stream encountered - %d\n"),
projects / bacula / bacula / blobdiff