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authorAndrew Bartlett <abartlet@samba.org>2012-08-12 20:41:35 +1000
committerAndrew Bartlett <abartlet@samba.org>2012-08-15 11:44:43 +1000
commitdcfb6aad16b4b7b70a63340a17771d3f40aed1ce (patch)
tree642350bd8b0e54bdbb24bcd7b712c411eedd3441 /source3
parent47082ad3fae086c168bfedaa2fba692eccff3145 (diff)
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s3-smbd: Change allocation of smb_acl_t to talloc()
The acl element is changed to be a talloc child, and is no longer one element longer than requested by virtue of the acl[1] base pointer. This also avoids one of the few remaining cases of over-allocation of a structure. Andrew Bartlett
Diffstat (limited to 'source3')
-rw-r--r--source3/include/smb_acls.h2
-rw-r--r--source3/lib/sysacls.c19
-rw-r--r--source3/modules/vfs_aixacl2.c2
-rw-r--r--source3/modules/vfs_aixacl_util.c28
-rw-r--r--source3/modules/vfs_gpfs.c4
-rw-r--r--source3/modules/vfs_hpuxacl.c11
-rw-r--r--source3/modules/vfs_posixacl.c15
-rw-r--r--source3/modules/vfs_solarisacl.c11
-rw-r--r--source3/modules/vfs_tru64acl.c21
9 files changed, 49 insertions, 64 deletions
diff --git a/source3/include/smb_acls.h b/source3/include/smb_acls.h
index 16bb61f670..4998e4b07d 100644
--- a/source3/include/smb_acls.h
+++ b/source3/include/smb_acls.h
@@ -54,7 +54,7 @@ typedef struct smb_acl_t {
int size;
int count;
int next;
- struct smb_acl_entry acl[1];
+ struct smb_acl_entry *acl;
} *SMB_ACL_T;
typedef struct smb_acl_entry *SMB_ACL_ENTRY_T;
diff --git a/source3/lib/sysacls.c b/source3/lib/sysacls.c
index 592aef6d43..7e387e444b 100644
--- a/source3/lib/sysacls.c
+++ b/source3/lib/sysacls.c
@@ -258,15 +258,7 @@ SMB_ACL_T sys_acl_init(int count)
return NULL;
}
- /*
- * note that since the definition of the structure pointed
- * to by the SMB_ACL_T includes the first element of the
- * acl[] array, this actually allocates an ACL with room
- * for (count+1) entries
- */
- if ((a = (struct smb_acl_t *)SMB_MALLOC(
- sizeof(struct smb_acl_t) +
- count * sizeof(struct smb_acl_entry))) == NULL) {
+ if ((a = talloc(NULL, struct smb_acl_t)) == NULL) {
errno = ENOMEM;
return NULL;
}
@@ -275,6 +267,13 @@ SMB_ACL_T sys_acl_init(int count)
a->count = 0;
a->next = -1;
+ a->acl = talloc_array(a, struct smb_acl_entry, count+1);
+ if (!a->acl) {
+ TALLOC_FREE(a);
+ errno = ENOMEM;
+ return NULL;
+ }
+
return a;
}
@@ -357,7 +356,7 @@ int sys_acl_free_text(char *text)
int sys_acl_free_acl(SMB_ACL_T acl_d)
{
- SAFE_FREE(acl_d);
+ TALLOC_FREE(acl_d);
return 0;
}
diff --git a/source3/modules/vfs_aixacl2.c b/source3/modules/vfs_aixacl2.c
index 3f13a6fa87..dd705ea319 100644
--- a/source3/modules/vfs_aixacl2.c
+++ b/source3/modules/vfs_aixacl2.c
@@ -229,7 +229,7 @@ static SMB_ACL_T aixjfs2_get_posix_acl(const char *path, acl_type_t type)
done:
if (errno != 0) {
- SAFE_FREE(result);
+ TALLOC_FREE(result);
}
return result;
}
diff --git a/source3/modules/vfs_aixacl_util.c b/source3/modules/vfs_aixacl_util.c
index b359c401ef..bd5ccbbdc2 100644
--- a/source3/modules/vfs_aixacl_util.c
+++ b/source3/modules/vfs_aixacl_util.c
@@ -27,14 +27,13 @@ SMB_ACL_T aixacl_to_smbacl(struct acl *file_acl)
struct acl_entry *acl_entry;
struct ace_id *idp;
- struct smb_acl_t *result = SMB_MALLOC_P(struct smb_acl_t);
+ struct smb_acl_t *result = sys_acl_init(0);
struct smb_acl_entry *ace;
int i;
if (result == NULL) {
return NULL;
}
- ZERO_STRUCTP(result);
/* Point to the first acl entry in the acl */
acl_entry = file_acl->acl_ext;
@@ -64,11 +63,9 @@ SMB_ACL_T aixacl_to_smbacl(struct acl *file_acl)
idp = acl_entry->ace_id;
DEBUG(10,("idp->id_data is %d\n",idp->id_data[0]));
- result = SMB_REALLOC(result, sizeof(struct smb_acl_t) +
- (sizeof(struct smb_acl_entry) *
- (result->count+1)));
+ result->acl = talloc_realloc(result, result->acl, result->count+1);
if (result == NULL) {
- DEBUG(0, ("SMB_REALLOC failed\n"));
+ DEBUG(0, ("talloc_realloc failed\n"));
errno = ENOMEM;
return NULL;
}
@@ -117,7 +114,7 @@ SMB_ACL_T aixacl_to_smbacl(struct acl *file_acl)
break;
default:
DEBUG(0, ("unknown ace->type\n"));
- SAFE_FREE(result);
+ TALLOC_FREE(result);
return(0);
}
@@ -141,15 +138,14 @@ SMB_ACL_T aixacl_to_smbacl(struct acl *file_acl)
for( i = 1; i < 4; i++) {
DEBUG(10,("i is %d\n",i));
- result = SMB_REALLOC(result, sizeof(struct smb_acl_t) +
- (sizeof(struct smb_acl_entry) *
- (result->count+1)));
- if (result == NULL) {
- DEBUG(0, ("SMB_REALLOC failed\n"));
- errno = ENOMEM;
- DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno));
- return NULL;
- }
+ result->acl = talloc_realloc(result, result->acl, result->count+1);
+ if (result->acl == NULL) {
+ TALLOC_FREE(result);
+ DEBUG(0, ("talloc_realloc failed\n"));
+ errno = ENOMEM;
+ DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno));
+ return NULL;
+ }
ace = &result->acl[result->count];
diff --git a/source3/modules/vfs_gpfs.c b/source3/modules/vfs_gpfs.c
index 4e4df22ebe..874d00d048 100644
--- a/source3/modules/vfs_gpfs.c
+++ b/source3/modules/vfs_gpfs.c
@@ -594,7 +594,7 @@ static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl)
DEBUG(10, ("Got invalid ace_type: %d\n",
g_ace->ace_type));
errno = EINVAL;
- SAFE_FREE(result);
+ TALLOC_FREE(result);
return NULL;
}
@@ -648,7 +648,7 @@ static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type)
done:
if (errno != 0) {
- SAFE_FREE(result);
+ TALLOC_FREE(result);
}
return result;
}
diff --git a/source3/modules/vfs_hpuxacl.c b/source3/modules/vfs_hpuxacl.c
index 1b5d8d087d..f8661b1134 100644
--- a/source3/modules/vfs_hpuxacl.c
+++ b/source3/modules/vfs_hpuxacl.c
@@ -386,7 +386,7 @@ int hpuxacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
done:
DEBUG(10, ("hpuxacl_sys_acl_delete_def_file %s.\n",
((ret != 0) ? "failed" : "succeeded" )));
- SAFE_FREE(smb_acl);
+ TALLOC_FREE(smb_acl);
return ret;
}
@@ -506,11 +506,8 @@ static SMB_ACL_T hpux_acl_to_smb_acl(HPUX_ACL_T hpux_acl, int count,
if (!_IS_OF_TYPE(hpux_acl[i], type)) {
continue;
}
- result = SMB_REALLOC(result,
- sizeof(struct smb_acl_t) +
- (sizeof(struct smb_acl_entry) *
- (result->count + 1)));
- if (result == NULL) {
+ 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;
}
@@ -534,7 +531,7 @@ static SMB_ACL_T hpux_acl_to_smb_acl(HPUX_ACL_T hpux_acl, int count,
}
goto done;
fail:
- SAFE_FREE(result);
+ TALLOC_FREE(result);
done:
DEBUG(10, ("hpux_acl_to_smb_acl %s\n",
((result == NULL) ? "failed" : "succeeded")));
diff --git a/source3/modules/vfs_posixacl.c b/source3/modules/vfs_posixacl.c
index d304f6fe8e..407a3a1724 100644
--- a/source3/modules/vfs_posixacl.c
+++ b/source3/modules/vfs_posixacl.c
@@ -214,28 +214,27 @@ static bool smb_ace_to_internal(acl_entry_t posix_ace,
static struct smb_acl_t *smb_acl_to_internal(acl_t acl)
{
- struct smb_acl_t *result = SMB_MALLOC_P(struct smb_acl_t);
+ struct smb_acl_t *result = sys_acl_init(0);
int entry_id = ACL_FIRST_ENTRY;
acl_entry_t e;
if (result == NULL) {
return NULL;
}
- ZERO_STRUCTP(result);
while (acl_get_entry(acl, entry_id, &e) == 1) {
entry_id = ACL_NEXT_ENTRY;
- result = (struct smb_acl_t *)SMB_REALLOC(
- result, sizeof(struct smb_acl_t) +
- (sizeof(struct smb_acl_entry) * (result->count+1)));
- if (result == NULL) {
- DEBUG(0, ("SMB_REALLOC failed\n"));
+ result->acl = talloc_realloc(result, result->acl,
+ struct smb_acl_entry, result->count+1);
+ if (result->acl == NULL) {
+ TALLOC_FREE(result);
+ DEBUG(0, ("talloc_realloc failed\n"));
errno = ENOMEM;
return NULL;
}
if (!smb_ace_to_internal(e, &result->acl[result->count])) {
- SAFE_FREE(result);
+ TALLOC_FREE(result);
return NULL;
}
diff --git a/source3/modules/vfs_solarisacl.c b/source3/modules/vfs_solarisacl.c
index 598f25f7f8..ff9f1a62e3 100644
--- a/source3/modules/vfs_solarisacl.c
+++ b/source3/modules/vfs_solarisacl.c
@@ -323,7 +323,7 @@ int solarisacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
done:
DEBUG(10, ("solarisacl_sys_acl_delete_def_file %s.\n",
((ret != 0) ? "failed" : "succeeded" )));
- SAFE_FREE(smb_acl);
+ TALLOC_FREE(smb_acl);
return ret;
}
@@ -440,11 +440,8 @@ static SMB_ACL_T solaris_acl_to_smb_acl(SOLARIS_ACL_T solaris_acl, int count,
if (!_IS_OF_TYPE(solaris_acl[i], type)) {
continue;
}
- result = SMB_REALLOC(result,
- sizeof(struct smb_acl_t) +
- (sizeof(struct smb_acl_entry) *
- (result->count + 1)));
- if (result == NULL) {
+ 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;
}
@@ -469,7 +466,7 @@ static SMB_ACL_T solaris_acl_to_smb_acl(SOLARIS_ACL_T solaris_acl, int count,
goto done;
fail:
- SAFE_FREE(result);
+ TALLOC_FREE(result);
done:
DEBUG(10, ("solaris_acl_to_smb_acl %s\n",
((result == NULL) ? "failed" : "succeeded")));
diff --git a/source3/modules/vfs_tru64acl.c b/source3/modules/vfs_tru64acl.c
index 3f91a4753a..09f8c3933f 100644
--- a/source3/modules/vfs_tru64acl.c
+++ b/source3/modules/vfs_tru64acl.c
@@ -160,28 +160,27 @@ static struct smb_acl_t *tru64_acl_to_smb_acl(const struct acl *tru64_acl)
DEBUG(10, ("Hi! This is tru64_acl_to_smb_acl.\n"));
- if ((result = SMB_MALLOC_P(struct smb_acl_t)) == NULL) {
- DEBUG(0, ("SMB_MALLOC_P failed in tru64_acl_to_smb_acl\n"));
+ if ((result = sys_acl_init(0)) == NULL) {
+ DEBUG(0, ("sys_acl_init() failed in tru64_acl_to_smb_acl\n"));
errno = ENOMEM;
goto fail;
}
- ZERO_STRUCTP(result);
if (acl_first_entry((struct acl *)tru64_acl) != 0) {
DEBUG(10, ("acl_first_entry failed: %s\n", strerror(errno)));
goto fail;
}
while ((entry = acl_get_entry((struct acl *)tru64_acl)) != NULL) {
- result = SMB_REALLOC(result, sizeof(struct smb_acl_t) +
- (sizeof(struct smb_acl_entry) *
- (result->count + 1)));
- if (result == NULL) {
- DEBUG(0, ("SMB_REALLOC failed in tru64_acl_to_smb_acl\n"));
+ result->acl = talloc_realloc(result, result->acl, struct smb_acl_entry,
+ result->count + 1);
+ if (result->acl == NULL) {
+ TALLOC_FREE(result);
+ DEBUG(0, ("talloc_realloc failed in tru64_acl_to_smb_acl\n"));
errno = ENOMEM;
goto fail;
}
/* XYZ */
if (!tru64_ace_to_smb_ace(entry, &result->acl[result->count])) {
- SAFE_FREE(result);
+ TALLOC_FREE(result);
goto fail;
}
result->count += 1;
@@ -189,9 +188,7 @@ static struct smb_acl_t *tru64_acl_to_smb_acl(const struct acl *tru64_acl)
return result;
fail:
- if (result != NULL) {
- SAFE_FREE(result);
- }
+ TALLOC_FREE(result);
DEBUG(1, ("tru64_acl_to_smb_acl failed!\n"));
return NULL;
}