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samba-mirror/source3/modules/vfs_solarisacl.c
Christof Schmitt 4003736a3d vfs: Use static_decl_vfs in all VFS modules
Signed-off-by: Christof Schmitt <cs@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>

Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Mon Dec 18 13:32:00 CET 2017 on sn-devel-144
2017-12-18 13:31:59 +01:00

785 lines
22 KiB
C

/*
Unix SMB/Netbios implementation.
VFS module to get and set Solaris ACLs
Copyright (C) Michael Adam 2006,2008
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
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
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "system/filesys.h"
#include "smbd/smbd.h"
#include "modules/vfs_solarisacl.h"
/* typedef struct acl SOLARIS_ACE_T; */
typedef aclent_t SOLARIS_ACE_T;
typedef aclent_t *SOLARIS_ACL_T;
typedef int SOLARIS_ACL_TAG_T; /* the type of an ACL entry */
typedef o_mode_t SOLARIS_PERM_T;
/* for convenience: check if solaris acl entry is a default entry? */
#define _IS_DEFAULT(ace) ((ace).a_type & ACL_DEFAULT)
#define _IS_OF_TYPE(ace, type) ( \
(((type) == SMB_ACL_TYPE_ACCESS) && !_IS_DEFAULT(ace)) \
|| \
(((type) == SMB_ACL_TYPE_DEFAULT) && _IS_DEFAULT(ace)) \
)
/* prototypes for private functions */
static SOLARIS_ACL_T solaris_acl_init(int count);
static bool smb_acl_to_solaris_acl(SMB_ACL_T smb_acl,
SOLARIS_ACL_T *solariacl, int *count,
SMB_ACL_TYPE_T type);
static SMB_ACL_T solaris_acl_to_smb_acl(SOLARIS_ACL_T solarisacl, int count,
SMB_ACL_TYPE_T type, TALLOC_CTX *mem_ctx);
static SOLARIS_ACL_TAG_T smb_tag_to_solaris_tag(SMB_ACL_TAG_T smb_tag);
static SMB_ACL_TAG_T solaris_tag_to_smb_tag(SOLARIS_ACL_TAG_T solaris_tag);
static bool solaris_add_to_acl(SOLARIS_ACL_T *solaris_acl, int *count,
SOLARIS_ACL_T add_acl, int add_count, SMB_ACL_TYPE_T type);
static bool solaris_acl_get_file(const char *name, SOLARIS_ACL_T *solarisacl,
int *count);
static bool solaris_acl_get_fd(int fd, SOLARIS_ACL_T *solarisacl, int *count);
static bool solaris_acl_sort(SOLARIS_ACL_T theacl, int count);
static SMB_ACL_PERM_T solaris_perm_to_smb_perm(const SOLARIS_PERM_T perm);
static SOLARIS_PERM_T smb_perm_to_solaris_perm(const SMB_ACL_PERM_T perm);
#if 0
static bool solaris_acl_check(SOLARIS_ACL_T solaris_acl, int count);
#endif
/* public functions - the api */
SMB_ACL_T solarisacl_sys_acl_get_file(vfs_handle_struct *handle,
const struct smb_filename *smb_fname,
SMB_ACL_TYPE_T type,
TALLOC_CTX *mem_ctx)
{
SMB_ACL_T result = NULL;
int count;
SOLARIS_ACL_T solaris_acl = NULL;
const char *path_p = smb_fname->base_name;
DEBUG(10, ("solarisacl_sys_acl_get_file called for file '%s'.\n",
path_p));
if (type != SMB_ACL_TYPE_ACCESS && type != SMB_ACL_TYPE_DEFAULT) {
DEBUG(10, ("invalid SMB_ACL_TYPE given (%d)\n", type));
errno = EINVAL;
goto done;
}
DEBUGADD(10, ("getting %s acl\n",
((type == SMB_ACL_TYPE_ACCESS) ? "access" : "default")));
if (!solaris_acl_get_file(path_p, &solaris_acl, &count)) {
goto done;
}
result = solaris_acl_to_smb_acl(solaris_acl, count, type, mem_ctx);
if (result == NULL) {
DEBUG(10, ("conversion solaris_acl -> smb_acl failed (%s).\n",
strerror(errno)));
}
done:
DEBUG(10, ("solarisacl_sys_acl_get_file %s.\n",
((result == NULL) ? "failed" : "succeeded" )));
SAFE_FREE(solaris_acl);
return result;
}
/*
* get the access ACL of a file referred to by a fd
*/
SMB_ACL_T solarisacl_sys_acl_get_fd(vfs_handle_struct *handle,
files_struct *fsp, TALLOC_CTX *mem_ctx)
{
SMB_ACL_T result = NULL;
int count;
SOLARIS_ACL_T solaris_acl = NULL;
DEBUG(10, ("entering solarisacl_sys_acl_get_fd.\n"));
if (!solaris_acl_get_fd(fsp->fh->fd, &solaris_acl, &count)) {
goto done;
}
/*
* The facl call returns both ACCESS and DEFAULT acls (as present).
* The posix acl_get_fd function returns only the
* access acl. So we need to filter this out here.
*/
result = solaris_acl_to_smb_acl(solaris_acl, count,
SMB_ACL_TYPE_ACCESS, mem_ctx);
if (result == NULL) {
DEBUG(10, ("conversion solaris_acl -> smb_acl failed (%s).\n",
strerror(errno)));
}
done:
DEBUG(10, ("solarisacl_sys_acl_get_fd %s.\n",
((result == NULL) ? "failed" : "succeeded")));
SAFE_FREE(solaris_acl);
return result;
}
int solarisacl_sys_acl_set_file(vfs_handle_struct *handle,
const struct smb_filename *smb_fname_in,
SMB_ACL_TYPE_T type,
SMB_ACL_T theacl)
{
int ret = -1;
SOLARIS_ACL_T solaris_acl = NULL;
int count;
struct smb_filename *smb_fname = NULL;
smb_fname = cp_smb_filename_nostream(talloc_tos(), smb_fname_in);
if (smb_fname == NULL) {
errno = ENOMEM;
goto done;
}
DEBUG(10, ("solarisacl_sys_acl_set_file called for file '%s'\n",
smb_fname->base_name));
if ((type != SMB_ACL_TYPE_ACCESS) && (type != SMB_ACL_TYPE_DEFAULT)) {
errno = EINVAL;
DEBUG(10, ("invalid smb acl type given (%d).\n", type));
goto done;
}
DEBUGADD(10, ("setting %s acl\n",
((type == SMB_ACL_TYPE_ACCESS) ? "access" : "default")));
if(!smb_acl_to_solaris_acl(theacl, &solaris_acl, &count, type)) {
DEBUG(10, ("conversion smb_acl -> solaris_acl failed (%s).\n",
strerror(errno)));
goto done;
}
/*
* if the file is a directory, there is extra work to do:
* since the solaris acl call stores both the access acl and
* the default acl as provided, we have to get the acl part
* that has not been specified in "type" from the file first
* and concatenate it with the acl provided.
*
* We can directly use SMB_VFS_STAT here, as if this was a
* POSIX call on a symlink, we've already refused it.
* For a Windows acl mapped call on a symlink, we want to follow
* it.
*/
ret = SMB_VFS_STAT(handle->conn, smb_fname);
if (ret != 0) {
DEBUG(10, ("Error in stat call: %s\n", strerror(errno)));
goto done;
}
if (S_ISDIR(smb_fname->st.st_ex_mode)) {
SOLARIS_ACL_T other_acl = NULL;
int other_count;
SMB_ACL_TYPE_T other_type;
other_type = (type == SMB_ACL_TYPE_ACCESS)
? SMB_ACL_TYPE_DEFAULT
: SMB_ACL_TYPE_ACCESS;
DEBUGADD(10, ("getting acl from filesystem\n"));
if (!solaris_acl_get_file(smb_fname->base_name,
&other_acl, &other_count)) {
DEBUG(10, ("error getting acl from directory\n"));
goto done;
}
DEBUG(10, ("adding %s part of fs acl to given acl\n",
((other_type == SMB_ACL_TYPE_ACCESS)
? "access"
: "default")));
if (!solaris_add_to_acl(&solaris_acl, &count, other_acl,
other_count, other_type))
{
DEBUG(10, ("error adding other acl.\n"));
SAFE_FREE(other_acl);
goto done;
}
SAFE_FREE(other_acl);
}
else if (type != SMB_ACL_TYPE_ACCESS) {
errno = EINVAL;
goto done;
}
if (!solaris_acl_sort(solaris_acl, count)) {
DEBUG(10, ("resulting acl is not valid!\n"));
goto done;
}
ret = acl(smb_fname->base_name, SETACL, count, solaris_acl);
done:
DEBUG(10, ("solarisacl_sys_acl_set_file %s.\n",
((ret != 0) ? "failed" : "succeeded")));
SAFE_FREE(solaris_acl);
TALLOC_FREE(smb_fname);
return ret;
}
/*
* set the access ACL on the file referred to by a fd
*/
int solarisacl_sys_acl_set_fd(vfs_handle_struct *handle,
files_struct *fsp,
SMB_ACL_T theacl)
{
SOLARIS_ACL_T solaris_acl = NULL;
SOLARIS_ACL_T default_acl = NULL;
int count, default_count;
int ret = -1;
DEBUG(10, ("entering solarisacl_sys_acl_set_fd\n"));
/*
* the posix acl_set_fd call sets the access acl of the
* file referred to by fd. the solaris facl-SETACL call
* sets the access and default acl as provided, so we
* have to retrieve the default acl of the file and
* concatenate it with the access acl provided.
*/
if (!smb_acl_to_solaris_acl(theacl, &solaris_acl, &count,
SMB_ACL_TYPE_ACCESS))
{
DEBUG(10, ("conversion smb_acl -> solaris_acl failed (%s).\n",
strerror(errno)));
goto done;
}
if (!solaris_acl_get_fd(fsp->fh->fd, &default_acl, &default_count)) {
DEBUG(10, ("error getting (default) acl from fd\n"));
goto done;
}
if (!solaris_add_to_acl(&solaris_acl, &count,
default_acl, default_count,
SMB_ACL_TYPE_DEFAULT))
{
DEBUG(10, ("error adding default acl to solaris acl\n"));
goto done;
}
if (!solaris_acl_sort(solaris_acl, count)) {
DEBUG(10, ("resulting acl is not valid!\n"));
goto done;
}
ret = facl(fsp->fh->fd, SETACL, count, solaris_acl);
if (ret != 0) {
DEBUG(10, ("call of facl failed (%s).\n", strerror(errno)));
}
done:
DEBUG(10, ("solarisacl_sys_acl_set_fd %s.\n",
((ret == 0) ? "succeeded" : "failed" )));
SAFE_FREE(solaris_acl);
SAFE_FREE(default_acl);
return ret;
}
/*
* delete the default ACL of a directory
*
* This is achieved by fetching the access ACL and rewriting it
* directly, via the solaris system call: the SETACL call on
* directories writes both the access and the default ACL as provided.
*
* XXX: posix acl_delete_def_file returns an error if
* the file referred to by path is not a directory.
* this function does not complain but the actions
* have no effect on a file other than a directory.
* But sys_acl_delete_default_file is only called in
* smbd/posixacls.c after having checked that the file
* is a directory, anyways. So implementing the extra
* check is considered unnecessary. --- Agreed? XXX
*/
int solarisacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
const struct smb_filename *smb_fname)
{
SMB_ACL_T smb_acl;
int ret = -1;
SOLARIS_ACL_T solaris_acl = NULL;
int count;
DEBUG(10, ("entering solarisacl_sys_acl_delete_def_file.\n"));
smb_acl = solarisacl_sys_acl_get_file(handle, smb_fname->base_name,
SMB_ACL_TYPE_ACCESS, talloc_tos());
if (smb_acl == NULL) {
DEBUG(10, ("getting file acl failed!\n"));
goto done;
}
if (!smb_acl_to_solaris_acl(smb_acl, &solaris_acl, &count,
SMB_ACL_TYPE_ACCESS))
{
DEBUG(10, ("conversion smb_acl -> solaris_acl failed.\n"));
goto done;
}
if (!solaris_acl_sort(solaris_acl, count)) {
DEBUG(10, ("resulting acl is not valid!\n"));
goto done;
}
ret = acl(smb_fname->base_name, SETACL, count, solaris_acl);
if (ret != 0) {
DEBUG(10, ("settinge file acl failed!\n"));
}
done:
DEBUG(10, ("solarisacl_sys_acl_delete_def_file %s.\n",
((ret != 0) ? "failed" : "succeeded" )));
TALLOC_FREE(smb_acl);
return ret;
}
/* private functions */
static SOLARIS_ACL_T solaris_acl_init(int count)
{
SOLARIS_ACL_T solaris_acl =
(SOLARIS_ACL_T)SMB_MALLOC(sizeof(aclent_t) * count);
if (solaris_acl == NULL) {
errno = ENOMEM;
}
return solaris_acl;
}
/*
* Convert the SMB acl to the ACCESS or DEFAULT part of a
* solaris ACL, as desired.
*/
static bool smb_acl_to_solaris_acl(SMB_ACL_T smb_acl,
SOLARIS_ACL_T *solaris_acl, int *count,
SMB_ACL_TYPE_T type)
{
bool ret = False;
int i;
DEBUG(10, ("entering smb_acl_to_solaris_acl\n"));
*solaris_acl = NULL;
*count = 0;
for (i = 0; i < smb_acl->count; i++) {
const struct smb_acl_entry *smb_entry = &(smb_acl->acl[i]);
SOLARIS_ACE_T solaris_entry;
ZERO_STRUCT(solaris_entry);
solaris_entry.a_type = smb_tag_to_solaris_tag(smb_entry->a_type);
if (solaris_entry.a_type == 0) {
DEBUG(10, ("smb_tag to solaris_tag failed\n"));
goto fail;
}
switch(solaris_entry.a_type) {
case USER:
DEBUG(10, ("got tag type USER with uid %u\n",
(unsigned int)smb_entry->info.user.uid));
solaris_entry.a_id = (uid_t)smb_entry->info.user.uid;
break;
case GROUP:
DEBUG(10, ("got tag type GROUP with gid %u\n",
(unsigned int)smb_entry->info.group.gid));
solaris_entry.a_id = (uid_t)smb_entry->info.group.gid;
break;
default:
break;
}
if (type == SMB_ACL_TYPE_DEFAULT) {
DEBUG(10, ("adding default bit to solaris ace\n"));
solaris_entry.a_type |= ACL_DEFAULT;
}
solaris_entry.a_perm =
smb_perm_to_solaris_perm(smb_entry->a_perm);
DEBUG(10, ("assembled the following solaris ace:\n"));
DEBUGADD(10, (" - type: 0x%04x\n", solaris_entry.a_type));
DEBUGADD(10, (" - id: %u\n", (unsigned int)solaris_entry.a_id));
DEBUGADD(10, (" - perm: o%o\n", solaris_entry.a_perm));
if (!solaris_add_to_acl(solaris_acl, count, &solaris_entry,
1, type))
{
DEBUG(10, ("error adding acl entry\n"));
goto fail;
}
DEBUG(10, ("count after adding: %d (i: %d)\n", *count, i));
DEBUG(10, ("test, if entry has been copied into acl:\n"));
DEBUGADD(10, (" - type: 0x%04x\n",
(*solaris_acl)[(*count)-1].a_type));
DEBUGADD(10, (" - id: %u\n",
(unsigned int)(*solaris_acl)[(*count)-1].a_id));
DEBUGADD(10, (" - perm: o%o\n",
(*solaris_acl)[(*count)-1].a_perm));
}
ret = True;
goto done;
fail:
SAFE_FREE(*solaris_acl);
done:
DEBUG(10, ("smb_acl_to_solaris_acl %s\n",
((ret == True) ? "succeeded" : "failed")));
return ret;
}
/*
* convert either the access or the default part of a
* soaris acl to the SMB_ACL format.
*/
static SMB_ACL_T solaris_acl_to_smb_acl(SOLARIS_ACL_T solaris_acl, int count,
SMB_ACL_TYPE_T type, TALLOC_CTX *mem_ctx)
{
SMB_ACL_T result;
int i;
if ((result = sys_acl_init(mem_ctx)) == NULL) {
DEBUG(10, ("error allocating memory for SMB_ACL\n"));
goto fail;
}
for (i = 0; i < count; i++) {
SMB_ACL_ENTRY_T smb_entry;
SMB_ACL_PERM_T smb_perm;
if (!_IS_OF_TYPE(solaris_acl[i], type)) {
continue;
}
result->acl = talloc_realloc(result, result->acl, struct smb_acl_entry, result->count + 1);
if (result->acl == NULL) {
DEBUG(10, ("error reallocating memory for SMB_ACL\n"));
goto fail;
}
smb_entry = &result->acl[result->count];
if (sys_acl_set_tag_type(smb_entry,
solaris_tag_to_smb_tag(solaris_acl[i].a_type)) != 0)
{
DEBUG(10, ("invalid tag type given: 0x%04x\n",
solaris_acl[i].a_type));
goto fail;
}
/* intentionally not checking return code here: */
sys_acl_set_qualifier(smb_entry, (void *)&solaris_acl[i].a_id);
smb_perm = solaris_perm_to_smb_perm(solaris_acl[i].a_perm);
if (sys_acl_set_permset(smb_entry, &smb_perm) != 0) {
DEBUG(10, ("invalid permset given: %d\n",
solaris_acl[i].a_perm));
goto fail;
}
result->count += 1;
}
goto done;
fail:
TALLOC_FREE(result);
done:
DEBUG(10, ("solaris_acl_to_smb_acl %s\n",
((result == NULL) ? "failed" : "succeeded")));
return result;
}
static SOLARIS_ACL_TAG_T smb_tag_to_solaris_tag(SMB_ACL_TAG_T smb_tag)
{
SOLARIS_ACL_TAG_T solaris_tag = 0;
DEBUG(10, ("smb_tag_to_solaris_tag\n"));
DEBUGADD(10, (" --> got smb tag 0x%04x\n", smb_tag));
switch (smb_tag) {
case SMB_ACL_USER:
solaris_tag = USER;
break;
case SMB_ACL_USER_OBJ:
solaris_tag = USER_OBJ;
break;
case SMB_ACL_GROUP:
solaris_tag = GROUP;
break;
case SMB_ACL_GROUP_OBJ:
solaris_tag = GROUP_OBJ;
break;
case SMB_ACL_OTHER:
solaris_tag = OTHER_OBJ;
break;
case SMB_ACL_MASK:
solaris_tag = CLASS_OBJ;
break;
default:
DEBUGADD(10, (" !!! unknown smb tag type 0x%04x\n", smb_tag));
break;
}
DEBUGADD(10, (" --> determined solaris tag 0x%04x\n", solaris_tag));
return solaris_tag;
}
static SMB_ACL_TAG_T solaris_tag_to_smb_tag(SOLARIS_ACL_TAG_T solaris_tag)
{
SMB_ACL_TAG_T smb_tag = 0;
DEBUG(10, ("solaris_tag_to_smb_tag:\n"));
DEBUGADD(10, (" --> got solaris tag 0x%04x\n", solaris_tag));
solaris_tag &= ~ACL_DEFAULT;
switch (solaris_tag) {
case USER:
smb_tag = SMB_ACL_USER;
break;
case USER_OBJ:
smb_tag = SMB_ACL_USER_OBJ;
break;
case GROUP:
smb_tag = SMB_ACL_GROUP;
break;
case GROUP_OBJ:
smb_tag = SMB_ACL_GROUP_OBJ;
break;
case OTHER_OBJ:
smb_tag = SMB_ACL_OTHER;
break;
case CLASS_OBJ:
smb_tag = SMB_ACL_MASK;
break;
default:
DEBUGADD(10, (" !!! unknown solaris tag type: 0x%04x\n",
solaris_tag));
break;
}
DEBUGADD(10, (" --> determined smb tag 0x%04x\n", smb_tag));
return smb_tag;
}
static SMB_ACL_PERM_T solaris_perm_to_smb_perm(const SOLARIS_PERM_T perm)
{
SMB_ACL_PERM_T smb_perm = 0;
smb_perm |= ((perm & SMB_ACL_READ) ? SMB_ACL_READ : 0);
smb_perm |= ((perm & SMB_ACL_WRITE) ? SMB_ACL_WRITE : 0);
smb_perm |= ((perm & SMB_ACL_EXECUTE) ? SMB_ACL_EXECUTE : 0);
return smb_perm;
}
static SOLARIS_PERM_T smb_perm_to_solaris_perm(const SMB_ACL_PERM_T perm)
{
SOLARIS_PERM_T solaris_perm = 0;
solaris_perm |= ((perm & SMB_ACL_READ) ? SMB_ACL_READ : 0);
solaris_perm |= ((perm & SMB_ACL_WRITE) ? SMB_ACL_WRITE : 0);
solaris_perm |= ((perm & SMB_ACL_EXECUTE) ? SMB_ACL_EXECUTE : 0);
return solaris_perm;
}
static bool solaris_acl_get_file(const char *name, SOLARIS_ACL_T *solaris_acl,
int *count)
{
bool result = False;
DEBUG(10, ("solaris_acl_get_file called for file '%s'\n", name));
/*
* The original code tries some INITIAL_ACL_SIZE
* and only did the GETACLCNT call upon failure
* (for performance reasons).
* For the sake of simplicity, I skip this for now.
*/
*count = acl(name, GETACLCNT, 0, NULL);
if (*count < 0) {
DEBUG(10, ("acl GETACLCNT failed: %s\n", strerror(errno)));
goto done;
}
*solaris_acl = solaris_acl_init(*count);
if (*solaris_acl == NULL) {
DEBUG(10, ("error allocating memory for solaris acl...\n"));
goto done;
}
*count = acl(name, GETACL, *count, *solaris_acl);
if (*count < 0) {
DEBUG(10, ("acl GETACL failed: %s\n", strerror(errno)));
goto done;
}
result = True;
done:
DEBUG(10, ("solaris_acl_get_file %s.\n",
((result == True) ? "succeeded" : "failed" )));
return result;
}
static bool solaris_acl_get_fd(int fd, SOLARIS_ACL_T *solaris_acl, int *count)
{
bool ret = False;
DEBUG(10, ("entering solaris_acl_get_fd\n"));
/*
* see solaris_acl_get_file for comment about omission
* of INITIAL_ACL_SIZE...
*/
*count = facl(fd, GETACLCNT, 0, NULL);
if (*count < 0) {
DEBUG(10, ("facl GETACLCNT failed: %s\n", strerror(errno)));
goto done;
}
*solaris_acl = solaris_acl_init(*count);
if (*solaris_acl == NULL) {
DEBUG(10, ("error allocating memory for solaris acl...\n"));
goto done;
}
*count = facl(fd, GETACL, *count, *solaris_acl);
if (*count < 0) {
DEBUG(10, ("facl GETACL failed: %s\n", strerror(errno)));
goto done;
}
ret = True;
done:
DEBUG(10, ("solaris_acl_get_fd %s\n",
((ret == True) ? "succeeded" : "failed")));
return ret;
}
/*
* Add entries to a solaris ACL.
*
* Entries are directly added to the solarisacl parameter.
* if memory allocation fails, this may result in solarisacl
* being NULL. if the resulting acl is to be checked and is
* not valid, it is kept in solarisacl but False is returned.
*
* The type of ACEs (access/default) to be added to the ACL can
* be selected via the type parameter.
* I use the SMB_ACL_TYPE_T type here. Since SMB_ACL_TYPE_ACCESS
* is defined as "0", this means that one can only add either
* access or default ACEs, not both at the same time. If it
* should become necessary to add all of an ACL, one would have
* to replace this parameter by another type.
*/
static bool solaris_add_to_acl(SOLARIS_ACL_T *solaris_acl, int *count,
SOLARIS_ACL_T add_acl, int add_count,
SMB_ACL_TYPE_T type)
{
int i;
if ((type != SMB_ACL_TYPE_ACCESS) && (type != SMB_ACL_TYPE_DEFAULT))
{
DEBUG(10, ("invalid acl type given: %d\n", type));
errno = EINVAL;
return False;
}
for (i = 0; i < add_count; i++) {
if (!_IS_OF_TYPE(add_acl[i], type)) {
continue;
}
ADD_TO_ARRAY(NULL, SOLARIS_ACE_T, add_acl[i],
solaris_acl, count);
if (solaris_acl == NULL) {
DEBUG(10, ("error enlarging acl.\n"));
errno = ENOMEM;
return False;
}
}
return True;
}
/*
* sort the ACL and check it for validity
*
* [original comment from lib/sysacls.c:]
*
* if it's a minimal ACL with only 4 entries then we
* need to recalculate the mask permissions to make
* sure that they are the same as the GROUP_OBJ
* permissions as required by the UnixWare acl() system call.
*
* (note: since POSIX allows minimal ACLs which only contain
* 3 entries - ie there is no mask entry - we should, in theory,
* check for this and add a mask entry if necessary - however
* we "know" that the caller of this interface always specifies
* a mask, so in practice "this never happens" (tm) - if it *does*
* happen aclsort() will fail and return an error and someone will
* have to fix it...)
*/
static bool solaris_acl_sort(SOLARIS_ACL_T solaris_acl, int count)
{
int fixmask = (count <= 4);
if (aclsort(count, fixmask, solaris_acl) != 0) {
errno = EINVAL;
return False;
}
return True;
}
#if 0
/*
* acl check function:
* unused at the moment but could be used to get more
* concrete error messages for debugging...
* (acl sort just says that the acl is invalid...)
*/
static bool solaris_acl_check(SOLARIS_ACL_T solaris_acl, int count)
{
int check_rc;
int check_which;
check_rc = aclcheck(solaris_acl, count, &check_which);
if (check_rc != 0) {
DEBUG(10, ("acl is not valid:\n"));
DEBUGADD(10, (" - return code: %d\n", check_rc));
DEBUGADD(10, (" - which: %d\n", check_which));
if (check_which != -1) {
DEBUGADD(10, (" - invalid entry:\n"));
DEBUGADD(10, (" * type: %d:\n",
solaris_acl[check_which].a_type));
DEBUGADD(10, (" * id: %d\n",
solaris_acl[check_which].a_id));
DEBUGADD(10, (" * perm: 0o%o\n",
solaris_acl[check_which].a_perm));
}
return False;
}
return True;
}
#endif
static struct vfs_fn_pointers solarisacl_fns = {
.sys_acl_get_file_fn = solarisacl_sys_acl_get_file,
.sys_acl_get_fd_fn = solarisacl_sys_acl_get_fd,
.sys_acl_blob_get_file_fn = posix_sys_acl_blob_get_file,
.sys_acl_blob_get_fd_fn = posix_sys_acl_blob_get_fd,
.sys_acl_set_file_fn = solarisacl_sys_acl_set_file,
.sys_acl_set_fd_fn = solarisacl_sys_acl_set_fd,
.sys_acl_delete_def_file_fn = solarisacl_sys_acl_delete_def_file,
};
static_decl_vfs;
NTSTATUS vfs_solarisacl_init(TALLOC_CTX *ctx)
{
return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "solarisacl",
&solarisacl_fns);
}
/* ENTE */