Ainfo getAccessNode(const char *file1, const char *file2, int mode, pid_t pid) {
Ainfo node = createNewNode();
node->cwd = getCWDFromPid(pid);
node->userName = getEUserFromPid(pid);
node->groupName = getEGroupFromPid(pid);
node->fileOwner = getFileOwner(file1);
if (file1[0] == '/') {
node->fileName1 = (char*) malloc((strlen(file1) + 1) * sizeof (char));
strcpy(node->fileName1, file1);
} else {
node->fileName1 = (char*) malloc((strlen(node->cwd) + strlen(file1) + 2) * sizeof (char));
strcpy(node->fileName1, node->cwd);
strcat(node->fileName1, "/");
strcat(node->fileName1, file1);
}
//Not every access node has file2
if (file2) {
if (file2[0] == '/') {
node->fileName2 = (char*) malloc((strlen(file2) + 1) * sizeof (char));
strcpy(node->fileName2, file2);
} else {
node->fileName2 = (char*) malloc((strlen(node->cwd) + strlen(file2) + 2) * sizeof (char));
strcpy(node->fileName2, node->cwd);
strcat(node->fileName2, "/");
strcat(node->fileName2, file2);
}
}
node->mode = mode;
node->pid = pid;
return node;
}
Status PlatformFile::isOwnerRoot() const {
if (!isValid()) {
return Status(-1, "Invalid handle_");
}
uid_t owner_id = getFileOwner(handle_);
if (owner_id == (uid_t)-1) {
return Status(-1, "fstat error");
}
if (owner_id == 0) {
return Status(0, "OK");
}
return Status(1, "Owner is not root");
}
Status PlatformFile::isOwnerCurrentUser() const {
if (!isValid()) {
return Status(-1, "Invalid handle_");
}
uid_t owner_id = getFileOwner(handle_);
if (owner_id == (uid_t)-1) {
return Status(-1, "fstat error");
}
if (owner_id == ::getuid()) {
return Status(0, "OK");
}
return Status(1, "Owner is not current user");
}
/*
* Class: sun_management_FileSystemImpl
* Method: isAccessUserOnly0
* Signature: (Ljava/lang/String;)Z
*/
JNIEXPORT jboolean JNICALL Java_sun_management_FileSystemImpl_isAccessUserOnly0
(JNIEnv *env, jclass ignored, jstring str)
{
jboolean res = JNI_FALSE;
jboolean isCopy;
const char* path;
path = JNU_GetStringPlatformChars(env, str, &isCopy);
if (path != NULL) {
/*
* From the security descriptor get the file owner and
* DACL. Then check if anybody but the owner has access
* to the file.
*/
SECURITY_DESCRIPTOR* sd = getFileSecurityDescriptor(env, path);
if (sd != NULL) {
SID *owner = getFileOwner(env, sd);
if (owner != NULL) {
ACL* acl = getFileDACL(env, sd);
if (acl != NULL) {
res = isAccessUserOnly(env, owner, acl);
} else {
/*
* If acl is NULL it means that an exception was thrown
* or there is "all acess" to the file.
*/
res = JNI_FALSE;
}
}
free(sd);
}
if (isCopy) {
JNU_ReleaseStringPlatformChars(env, str, path);
}
}
return res;
}