SMB4ACL_T *smb_create_smb4acl(void)
{
TALLOC_CTX *mem_ctx = main_loop_talloc_get();
- SMB_ACL4_INT_T *acl = (SMB_ACL4_INT_T *)TALLOC_SIZE(mem_ctx, sizeof(SMB_ACL4_INT_T));
+ SMB_ACL4_INT_T *acl = (SMB_ACL4_INT_T *)TALLOC_ZERO_SIZE(mem_ctx, sizeof(SMB_ACL4_INT_T));
if (acl==NULL)
{
DEBUG(0, ("TALLOC_SIZE failed\n"));
errno = ENOMEM;
return NULL;
}
- memset(acl, 0, sizeof(SMB_ACL4_INT_T));
acl->magic = SMB_ACL4_INT_MAGIC;
/* acl->first, last = NULL not needed */
return (SMB4ACL_T *)acl;
TALLOC_CTX *mem_ctx = main_loop_talloc_get();
SMB_ACE4_INT_T *ace;
- ace = (SMB_ACE4_INT_T *)TALLOC_SIZE(mem_ctx, sizeof(SMB_ACE4_INT_T));
+ ace = (SMB_ACE4_INT_T *)TALLOC_ZERO_SIZE(mem_ctx, sizeof(SMB_ACE4_INT_T));
if (ace==NULL)
{
DEBUG(0, ("TALLOC_SIZE failed\n"));
errno = ENOMEM;
return NULL;
}
- memset(ace, 0, sizeof(SMB_ACE4_INT_T));
ace->magic = SMB_ACE4_INT_MAGIC;
/* ace->next = NULL not needed */
memcpy(&ace->prop, prop, sizeof(SMB_ACE4PROP_T));
return 0;
}
-static BOOL smbacl4_nfs42win(SMB4ACL_T *acl, /* in */
+static BOOL smbacl4_nfs42win(TALLOC_CTX *mem_ctx, SMB4ACL_T *acl, /* in */
DOM_SID *psid_owner, /* in */
DOM_SID *psid_group, /* in */
SEC_ACE **ppnt_ace_list, /* out */
SMB_ACE4_INT_T *aceint;
SEC_ACE *nt_ace_list = NULL;
int good_aces = 0;
- TALLOC_CTX *mem_ctx = main_loop_talloc_get();
DEBUG(10, ("smbacl_nfs42win entered"));
aclint = get_validated_aclint(acl);
- if (aclint==NULL)
+ /* We do not check for naces being 0 or acl being NULL here because it is done upstream */
+ /* in smb_get_nt_acl_nfs4(). */
+ nt_ace_list = (SEC_ACE *)TALLOC_ZERO_SIZE(mem_ctx, aclint->naces * sizeof(SEC_ACE));
+ if (nt_ace_list==NULL)
+ {
+ DEBUG(10, ("talloc error"));
+ errno = ENOMEM;
return False;
-
- if (aclint->naces) {
- nt_ace_list = (SEC_ACE *)TALLOC_SIZE(mem_ctx, aclint->naces * sizeof(SEC_ACE));
- if (nt_ace_list==NULL)
- {
- DEBUG(10, ("talloc error"));
- errno = ENOMEM;
- return False;
- }
- memset(nt_ace_list, 0, aclint->naces * sizeof(SEC_ACE));
- } else {
- nt_ace_list = NULL;
}
for (aceint=aclint->first; aceint!=NULL; aceint=(SMB_ACE4_INT_T *)aceint->next) {
uid_to_sid(&sid_owner, sbuf.st_uid);
gid_to_sid(&sid_group, sbuf.st_gid);
- if (smbacl4_nfs42win(acl,
- &sid_owner,
- &sid_group,
- &nt_ace_list,
- &good_aces
- )==False) {
+ if (smbacl4_nfs42win(mem_ctx, acl, &sid_owner, &sid_group, &nt_ace_list, &good_aces)==False) {
DEBUG(8,("smbacl4_nfs42win failed\n"));
return 0;
}
- psa = make_sec_acl(mem_ctx, NT4_ACL_REVISION,
- good_aces, nt_ace_list);
+ psa = make_sec_acl(mem_ctx, NT4_ACL_REVISION, good_aces, nt_ace_list);
if (psa == NULL) {
DEBUG(2,("make_sec_acl failed\n"));
return 0;
}
DEBUG(10,("after make sec_acl\n"));
- *ppdesc = make_sec_desc(mem_ctx, SEC_DESC_REVISION,
- SEC_DESC_SELF_RELATIVE,
- (security_info & OWNER_SECURITY_INFORMATION)
- ? &sid_owner : NULL,
- (security_info & GROUP_SECURITY_INFORMATION)
- ? &sid_group : NULL,
- NULL, psa, &sd_size);
+ *ppdesc = make_sec_desc(mem_ctx, SEC_DESC_REVISION, SEC_DESC_SELF_RELATIVE,
+ (security_info & OWNER_SECURITY_INFORMATION) ? &sid_owner : NULL,
+ (security_info & GROUP_SECURITY_INFORMATION) ? &sid_group : NULL,
+ NULL, psa, &sd_size);
if (*ppdesc==NULL) {
DEBUG(2,("make_sec_desc failed\n"));
return 0;
sid_string_static(&ace_nt->trustee)));
memset(ace_v4, 0, sizeof(SMB_ACE4PROP_T));
- ace_v4->aceType = ace_nt->type; /* only ACCES|DENY supported right now */
+ ace_v4->aceType = ace_nt->type; /* only ACCESS|DENY supported right now */
ace_v4->aceFlags = ace_nt->flags & SEC_ACE_FLAG_VALID_INHERIT;
ace_v4->aceMask = ace_nt->access_mask &
(STD_RIGHT_ALL_ACCESS | SA_RIGHT_FILE_ALL_ACCESS);
return acl;
}
-static BOOL gpfs_get_nfs4_acl(struct files_struct *fsp, SMB4ACL_T **ppacl, BOOL *pretryPosix)
+/* Tries to get nfs4 acls and returns SMB ACL allocated.
+ * On failure returns 1 if it got non-NFSv4 ACL to prompt
+ * retry with POSIX ACL checks.
+ * On failure returns -1 if there is system (GPFS) error, check errno.
+ * Returns 0 on success
+ */
+static int gpfs_get_nfs4_acl(const char *fname, SMB4ACL_T **ppacl)
{
- TALLOC_CTX *mem_ctx;
int i;
struct gpfs_acl *gacl = NULL;
-
- mem_ctx = main_loop_talloc_get();
-
- DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fsp->fsp_name));
+ DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname));
/* First get the real acl length */
- gacl = gpfs_getacl_alloc(fsp->fsp_name, GPFS_ACL_TYPE_NFS4);
+ gacl = gpfs_getacl_alloc(fname, GPFS_ACL_TYPE_NFS4);
if (gacl == NULL) {
DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
- fsp->fsp_name, strerror(errno)));
- return False;
+ fname, strerror(errno)));
+ return -1;
}
if (gacl->acl_type != GPFS_ACL_TYPE_NFS4) {
DEBUG(10, ("Got non-nfsv4 acl\n"));
- *pretryPosix = True;
- return False;
+ /* Retry with POSIX ACLs check */
+ return 1;
}
*ppacl = smb_create_smb4acl();
for (i=0; i<gacl->acl_nace; i++) {
struct gpfs_ace_v4 *gace = &gacl->ace_v4[i];
SMB_ACE4PROP_T smbace;
- memset(&smbace, 0, sizeof(SMB4ACE_T));
-
DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
"who: %d\n", gace->aceType, gace->aceIFlags,
gace->aceFlags, gace->aceMask, gace->aceWho));
+ memset(&smbace, 0, sizeof(SMB4ACE_T));
if (gace->aceIFlags & ACE4_IFLAG_SPECIAL_ID) {
smbace.flags |= SMB_ACE4_ID_SPECIAL;
switch (gace->aceWho) {
smbace.who.uid = gace->aceWho;
}
+ /* remove redundent deny entries */
+ if (i > 0 && gace->aceType == SMB_ACE4_ACCESS_DENIED_ACE_TYPE) {
+ struct gpfs_ace_v4 *prev = &gacl->ace_v4[i-1];
+ if (prev->aceType == SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE &&
+ prev->aceFlags == gace->aceFlags &&
+ prev->aceIFlags == gace->aceIFlags &&
+ (gace->aceMask & prev->aceMask) == 0 &&
+ gace->aceWho == prev->aceWho) {
+ /* its redundent - skip it */
+ continue;
+ }
+ }
+
smbace.aceType = gace->aceType;
smbace.aceFlags = gace->aceFlags;
smbace.aceMask = gace->aceMask;
- smbace.flags = (gace->aceIFlags&ACE4_IFLAG_SPECIAL_ID) ? SMB_ACE4_ID_SPECIAL : 0;
-
smb_add_ace4(*ppacl, &smbace);
}
- return True;
+ return 0;
}
static size_t gpfsacl_get_nt_acl_common(files_struct *fsp,
uint32 security_info, SEC_DESC **ppdesc)
{
SMB4ACL_T *pacl = NULL;
- BOOL result;
- BOOL retryPosix = False;
+ int result;
*ppdesc = NULL;
- result = gpfs_get_nfs4_acl(fsp, &pacl, &retryPosix);
- if (retryPosix)
- {
+ result = gpfs_get_nfs4_acl(fsp->fsp_name, &pacl);
+
+ if (result == 0)
+ return smb_get_nt_acl_nfs4(fsp, security_info, ppdesc, pacl);
+
+ if (result > 0) {
DEBUG(10, ("retrying with posix acl...\n"));
return get_nt_acl(fsp, security_info, ppdesc);
}
- if (result==False)
- return 0;
-
- return smb_get_nt_acl_nfs4(fsp, security_info, ppdesc, pacl);
+
+ /* GPFS ACL was not read, something wrong happened, error code is set in errno */
+ return 0;
}
size_t gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
return -1;
}
+static int vfs_gpfs_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
+{
+ SMB_STRUCT_STAT st;
+ if (SMB_VFS_NEXT_STAT(handle, path, &st) != 0) {
+ return -1;
+ }
+ /* avoid chmod() if possible, to preserve acls */
+ if ((st.st_mode & ~S_IFMT) == mode) {
+ return 0;
+ }
+ return SMB_VFS_NEXT_CHMOD(handle, path, mode);
+}
+
+static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, int fd, mode_t mode)
+{
+ SMB_STRUCT_STAT st;
+ if (SMB_VFS_NEXT_FSTAT(handle, fsp, fd, &st) != 0) {
+ return -1;
+ }
+ /* avoid chmod() if possible, to preserve acls */
+ if ((st.st_mode & ~S_IFMT) == mode) {
+ return 0;
+ }
+ return SMB_VFS_NEXT_FCHMOD(handle, fsp, fd, mode);
+}
+
/* VFS operations structure */
static vfs_op_tuple gpfs_op_tuples[] = {
- {SMB_VFS_OP(vfs_gpfs_kernel_flock),
- SMB_VFS_OP_KERNEL_FLOCK,
- SMB_VFS_LAYER_OPAQUE},
+ { SMB_VFS_OP(vfs_gpfs_kernel_flock), SMB_VFS_OP_KERNEL_FLOCK,
+ SMB_VFS_LAYER_OPAQUE },
+
+ { SMB_VFS_OP(vfs_gpfs_setlease), SMB_VFS_OP_LINUX_SETLEASE,
+ SMB_VFS_LAYER_OPAQUE },
+
+ { SMB_VFS_OP(gpfsacl_fget_nt_acl), SMB_VFS_OP_FGET_NT_ACL,
+ SMB_VFS_LAYER_TRANSPARENT },
- {SMB_VFS_OP(vfs_gpfs_setlease),
- SMB_VFS_OP_LINUX_SETLEASE,
- SMB_VFS_LAYER_OPAQUE},
+ { SMB_VFS_OP(gpfsacl_get_nt_acl), SMB_VFS_OP_GET_NT_ACL,
+ SMB_VFS_LAYER_TRANSPARENT },
- {SMB_VFS_OP(gpfsacl_fget_nt_acl),
- SMB_VFS_OP_FGET_NT_ACL,
- SMB_VFS_LAYER_TRANSPARENT},
+ { SMB_VFS_OP(gpfsacl_fset_nt_acl), SMB_VFS_OP_FSET_NT_ACL,
+ SMB_VFS_LAYER_TRANSPARENT },
- {SMB_VFS_OP(gpfsacl_get_nt_acl),
- SMB_VFS_OP_GET_NT_ACL,
- SMB_VFS_LAYER_TRANSPARENT},
+ { SMB_VFS_OP(gpfsacl_set_nt_acl), SMB_VFS_OP_SET_NT_ACL,
+ SMB_VFS_LAYER_TRANSPARENT },
- {SMB_VFS_OP(gpfsacl_fset_nt_acl),
- SMB_VFS_OP_FSET_NT_ACL,
- SMB_VFS_LAYER_TRANSPARENT},
+ { SMB_VFS_OP(gpfsacl_sys_acl_get_file), SMB_VFS_OP_SYS_ACL_GET_FILE,
+ SMB_VFS_LAYER_TRANSPARENT },
- {SMB_VFS_OP(gpfsacl_set_nt_acl),
- SMB_VFS_OP_SET_NT_ACL,
- SMB_VFS_LAYER_TRANSPARENT},
+ { SMB_VFS_OP(gpfsacl_sys_acl_get_fd), SMB_VFS_OP_SYS_ACL_GET_FD,
+ SMB_VFS_LAYER_TRANSPARENT },
- {SMB_VFS_OP(gpfsacl_sys_acl_get_file),
- SMB_VFS_OP_SYS_ACL_GET_FILE,
- SMB_VFS_LAYER_TRANSPARENT},
+ { SMB_VFS_OP(gpfsacl_sys_acl_set_file), SMB_VFS_OP_SYS_ACL_SET_FILE,
+ SMB_VFS_LAYER_TRANSPARENT },
- {SMB_VFS_OP(gpfsacl_sys_acl_get_fd),
- SMB_VFS_OP_SYS_ACL_GET_FD,
- SMB_VFS_LAYER_TRANSPARENT},
+ { SMB_VFS_OP(gpfsacl_sys_acl_set_fd), SMB_VFS_OP_SYS_ACL_SET_FD,
+ SMB_VFS_LAYER_TRANSPARENT },
- {SMB_VFS_OP(gpfsacl_sys_acl_set_file),
- SMB_VFS_OP_SYS_ACL_SET_FILE,
- SMB_VFS_LAYER_TRANSPARENT},
+ { SMB_VFS_OP(gpfsacl_sys_acl_delete_def_file),
+ SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE,
+ SMB_VFS_LAYER_TRANSPARENT },
- {SMB_VFS_OP(gpfsacl_sys_acl_set_fd),
- SMB_VFS_OP_SYS_ACL_SET_FD,
- SMB_VFS_LAYER_TRANSPARENT},
+ { SMB_VFS_OP(vfs_gpfs_chmod), SMB_VFS_OP_CHMOD,
+ SMB_VFS_LAYER_TRANSPARENT },
- {SMB_VFS_OP(gpfsacl_sys_acl_delete_def_file),
- SMB_VFS_OP_SYS_ACL_DELETE_DEF_FILE,
- SMB_VFS_LAYER_TRANSPARENT},
+ { SMB_VFS_OP(vfs_gpfs_fchmod), SMB_VFS_OP_FCHMOD,
+ SMB_VFS_LAYER_TRANSPARENT },
- {SMB_VFS_OP(NULL),
- SMB_VFS_OP_NOOP,
- SMB_VFS_LAYER_NOOP}
+ { SMB_VFS_OP(NULL), SMB_VFS_OP_NOOP, SMB_VFS_LAYER_NOOP }
};
git.samba.org / kai / samba.git / commitdiff