void uwsgi_setup_systemd() {
struct uwsgi_socket *uwsgi_sock = NULL;
int i;
char *listen_pid = getenv("LISTEN_PID");
if (listen_pid) {
if (atoi(listen_pid) == (int) getpid()) {
char *listen_fds = getenv("LISTEN_FDS");
if (listen_fds) {
int systemd_fds = atoi(listen_fds);
if (systemd_fds > 0) {
uwsgi_log("- SystemD socket activation detected -\n");
for (i = 3; i < 3 + systemd_fds; i++) {
uwsgi_sock = uwsgi_new_socket(NULL);
uwsgi_add_socket_from_fd(uwsgi_sock, i);
}
uwsgi.skip_zero = 1;
}
unsetenv("LISTEN_PID");
unsetenv("LISTEN_FDS");
}
}
}
}
void uwsgi_setup_upstart() {
struct uwsgi_socket *uwsgi_sock = NULL;
char *upstart_events = getenv("UPSTART_EVENTS");
if (upstart_events && !strcmp(upstart_events, "socket")) {
char *upstart_fds = getenv("UPSTART_FDS");
if (upstart_fds) {
uwsgi_log("- Upstart socket bridge detected (job: %s) -\n", getenv("UPSTART_JOB"));
uwsgi_sock = uwsgi_new_socket(NULL);
uwsgi_add_socket_from_fd(uwsgi_sock, atoi(upstart_fds));
uwsgi.skip_zero = 1;
}
unsetenv("UPSTART_EVENTS");
unsetenv("UPSTART_FDS");
}
}
void uwsgi_setup_zerg() {
struct uwsgi_socket *uwsgi_sock = NULL;
int i;
struct uwsgi_string_list *zn = uwsgi.zerg_node;
while (zn) {
if (uwsgi_zerg_attach(zn->value)) {
if (!uwsgi.zerg_fallback) {
exit(1);
}
}
zn = zn->next;
}
if (uwsgi.zerg) {
#ifdef UWSGI_DEBUG
uwsgi_log("attaching zerg sockets...\n");
#endif
int zerg_fd;
i = 0;
for (;;) {
zerg_fd = uwsgi.zerg[i];
if (zerg_fd == -1) {
break;
}
uwsgi_sock = uwsgi_new_socket(NULL);
uwsgi_add_socket_from_fd(uwsgi_sock, zerg_fd);
i++;
}
uwsgi_log("zerg sockets attached\n");
}
}
void uwsgi_bind_sockets() {
socklen_t socket_type_len;
union uwsgi_sockaddr usa;
union uwsgi_sockaddr_ptr gsa;
struct uwsgi_socket *uwsgi_sock = uwsgi.sockets;
while (uwsgi_sock) {
if (!uwsgi_sock->bound && !uwsgi_socket_is_already_bound(uwsgi_sock->name)) {
char *tcp_port = strrchr(uwsgi_sock->name, ':');
if (tcp_port == NULL) {
uwsgi_sock->fd = bind_to_unix(uwsgi_sock->name, uwsgi.listen_queue, uwsgi.chmod_socket, uwsgi.abstract_socket);
uwsgi_sock->family = AF_UNIX;
if (uwsgi.chown_socket) {
uwsgi_chown(uwsgi_sock->name, uwsgi.chown_socket);
}
uwsgi_log("uwsgi socket %d bound to UNIX address %s fd %d\n", uwsgi_get_socket_num(uwsgi_sock), uwsgi_sock->name, uwsgi_sock->fd);
}
else {
#ifdef UWSGI_IPV6
if (uwsgi_sock->name[0] == '[' && tcp_port[-1] == ']') {
uwsgi_sock->fd = bind_to_tcp6(uwsgi_sock->name, uwsgi.listen_queue, tcp_port);
uwsgi_log("uwsgi socket %d bound to TCP6 address %s fd %d\n", uwsgi_get_socket_num(uwsgi_sock), uwsgi_sock->name, uwsgi_sock->fd);
uwsgi_sock->family = AF_INET6;
}
else {
#endif
uwsgi_sock->fd = bind_to_tcp(uwsgi_sock->name, uwsgi.listen_queue, tcp_port);
uwsgi_log("uwsgi socket %d bound to TCP address %s fd %d\n", uwsgi_get_socket_num(uwsgi_sock), uwsgi_sock->name, uwsgi_sock->fd);
uwsgi_sock->family = AF_INET;
#ifdef UWSGI_IPV6
}
#endif
}
if (uwsgi_sock->fd < 0 && !uwsgi_sock->per_core) {
uwsgi_log("unable to create server socket on: %s\n", uwsgi_sock->name);
exit(1);
}
}
uwsgi_sock->bound = 1;
uwsgi_sock = uwsgi_sock->next;
}
if (uwsgi.chown_socket) {
if (!uwsgi.master_as_root) {
uwsgi_as_root();
}
}
int zero_used = 0;
uwsgi_sock = uwsgi.sockets;
while (uwsgi_sock) {
if (uwsgi_sock->bound && uwsgi_sock->fd == 0) {
zero_used = 1;
break;
}
uwsgi_sock = uwsgi_sock->next;
}
if (!zero_used) {
socket_type_len = sizeof(struct sockaddr_un);
gsa.sa = (struct sockaddr *) &usa;
if (!uwsgi.skip_zero && !getsockname(0, gsa.sa, &socket_type_len)) {
if (gsa.sa->sa_family == AF_UNIX) {
uwsgi_sock = uwsgi_new_socket(uwsgi_getsockname(0));
uwsgi_sock->family = AF_UNIX;
uwsgi_sock->fd = 0;
uwsgi_sock->bound = 1;
uwsgi_log("uwsgi socket %d inherited UNIX address %s fd 0\n", uwsgi_get_socket_num(uwsgi_sock), uwsgi_sock->name);
}
else {
uwsgi_sock = uwsgi_new_socket(uwsgi_getsockname(0));
uwsgi_sock->family = AF_INET;
uwsgi_sock->fd = 0;
uwsgi_sock->bound = 1;
uwsgi_log("uwsgi socket %d inherited INET address %s fd 0\n", uwsgi_get_socket_num(uwsgi_sock), uwsgi_sock->name);
}
}
else if (!uwsgi.honour_stdin) {
int fd = open("/dev/null", O_RDONLY);
if (fd < 0) {
uwsgi_error_open("/dev/null");
exit(1);
}
if (fd != 0) {
if (dup2(fd, 0) < 0) {
uwsgi_error("dup2()");
exit(1);
}
close(fd);
}
}
else if (uwsgi.honour_stdin) {
if (!tcgetattr(0, &uwsgi.termios)) {
uwsgi.restore_tc = 1;
}
}
}
// check for auto_port socket
uwsgi_sock = uwsgi.sockets;
while (uwsgi_sock) {
if (uwsgi_sock->auto_port) {
#ifdef UWSGI_IPV6
if (uwsgi_sock->family == AF_INET6) {
uwsgi_log("uwsgi socket %d bound to TCP6 address %s (port auto-assigned) fd %d\n", uwsgi_get_socket_num(uwsgi_sock), uwsgi_sock->name, uwsgi_sock->fd);
}
else {
#endif
uwsgi_log("uwsgi socket %d bound to TCP address %s (port auto-assigned) fd %d\n", uwsgi_get_socket_num(uwsgi_sock), uwsgi_sock->name, uwsgi_sock->fd);
#ifdef UWSGI_IPV6
}
#endif
}
uwsgi_sock = uwsgi_sock->next;
}
}
