struct wb_context *wb_context_init(TALLOC_CTX *mem_ctx, const char* dir)
{
struct wb_context *result;
result = talloc_zero(mem_ctx, struct wb_context);
if (result == NULL) {
return NULL;
}
result->queue = tevent_queue_create(result, "wb_trans");
if (result->queue == NULL) {
TALLOC_FREE(result);
return NULL;
}
result->fd = -1;
result->is_priv = false;
if (dir != NULL) {
result->dir = talloc_strdup(result, dir);
} else {
result->dir = winbindd_socket_dir();
}
if (result->dir == NULL) {
TALLOC_FREE(result);
return NULL;
}
return result;
}
static int winbind_open_pipe_sock(int recursing, int need_priv)
{
#ifdef HAVE_UNIXSOCKET
static pid_t our_pid;
struct winbindd_request request;
struct winbindd_response response;
ZERO_STRUCT(request);
ZERO_STRUCT(response);
if (our_pid != getpid()) {
winbind_close_sock();
our_pid = getpid();
}
if ((need_priv != 0) && (is_privileged == 0)) {
winbind_close_sock();
}
if (winbindd_fd != -1) {
return winbindd_fd;
}
if (recursing) {
return -1;
}
if ((winbindd_fd = winbind_named_pipe_sock(winbindd_socket_dir())) == -1) {
return -1;
}
is_privileged = 0;
/* version-check the socket */
request.wb_flags = WBFLAG_RECURSE;
if ((winbindd_request_response(WINBINDD_INTERFACE_VERSION, &request, &response) != NSS_STATUS_SUCCESS) || (response.data.interface_version != WINBIND_INTERFACE_VERSION)) {
winbind_close_sock();
return -1;
}
/* try and get priv pipe */
request.wb_flags = WBFLAG_RECURSE;
/* Note that response needs to be initialized to avoid
* crashing on clean up after WINBINDD_PRIV_PIPE_DIR call failed
* as interface version (from the first request) returned as a fstring,
* thus response.extra_data.data will not be NULL even though
* winbindd response did not write over it due to a failure */
ZERO_STRUCT(response);
if (winbindd_request_response(WINBINDD_PRIV_PIPE_DIR, &request, &response) == NSS_STATUS_SUCCESS) {
int fd;
if ((fd = winbind_named_pipe_sock((char *)response.extra_data.data)) != -1) {
close(winbindd_fd);
winbindd_fd = fd;
is_privileged = 1;
}
}
if ((need_priv != 0) && (is_privileged == 0)) {
return -1;
}
SAFE_FREE(response.extra_data.data);
return winbindd_fd;
#else
return -1;
#endif /* HAVE_UNIXSOCKET */
}
static int winbind_open_pipe_sock(int recursing, int need_priv)
{
#ifdef HAVE_UNIXSOCKET
static pid_t our_pid;
struct winbindd_request request;
struct winbindd_response response;
ZERO_STRUCT(request);
ZERO_STRUCT(response);
if (our_pid != getpid()) {
winbind_close_sock();
our_pid = getpid();
}
if ((need_priv != 0) && (is_privileged == 0)) {
winbind_close_sock();
}
if (winbindd_fd != -1) {
return winbindd_fd;
}
if (recursing) {
return -1;
}
if ((winbindd_fd = winbind_named_pipe_sock(winbindd_socket_dir())) == -1) {
return -1;
}
is_privileged = 0;
/* version-check the socket */
request.wb_flags = WBFLAG_RECURSE;
if ((winbindd_request_response(WINBINDD_INTERFACE_VERSION, &request, &response) != NSS_STATUS_SUCCESS) || (response.data.interface_version != WINBIND_INTERFACE_VERSION)) {
winbind_close_sock();
return -1;
}
/* try and get priv pipe */
request.wb_flags = WBFLAG_RECURSE;
if (winbindd_request_response(WINBINDD_PRIV_PIPE_DIR, &request, &response) == NSS_STATUS_SUCCESS) {
int fd;
if ((fd = winbind_named_pipe_sock((char *)response.extra_data.data)) != -1) {
close(winbindd_fd);
winbindd_fd = fd;
is_privileged = 1;
}
}
if ((need_priv != 0) && (is_privileged == 0)) {
return -1;
}
SAFE_FREE(response.extra_data.data);
return winbindd_fd;
#else
return -1;
#endif /* HAVE_UNIXSOCKET */
}
