sys/netinet/tcp_fastopen.c

73  *     When this and net.inet.tcp.fastopen.server_enable are non-zero, a new
88  *     When zero, no new active (i.e., client) TFO connections can be
92  *     only prevents new ones from being made.
111  *     When a failure occurs while trying to create a new active (i.e.,
112  *     client) TFO connection, new active connections on the same path, as
126  *     When zero, no new passive (i.e., server) TFO connections can be
130  *     there are no keys installed, a new key will be generated immediately.
132  *     TFO connections in progress; it only prevents new ones from being
136  *     Install a new key by writing net.inet.tcp.fastopen.keylen bytes to
140  *     Install a new pre-shared key by writing net.inet.tcp.fastopen.keylen
148  * only prevents new TFO connections from being made.
158  * Whenever this limit is exceeded, requests for new TFO connections are
272     "Number of seconds between auto-generation of a new key; zero disables");
344     "Install a new key");
350     "Install a new pre-shared key");
665 	unsigned int new;
667 	new = V_tcp_fastopen_autokey;
668 	error = sysctl_handle_int(oidp, &new, 0, req);
670 		if (new > (INT_MAX / hz))
675 			if (V_tcp_fastopen_autokey && !new)
677 			else if (new)
679 				    new * hz, tcp_fastopen_autokey_callout,
682 		V_tcp_fastopen_autokey = new;
693 	unsigned int new;
695 	new = V_tcp_fastopen_psk_enable;
696 	error = sysctl_handle_int(oidp, &new, 0, req);
698 		if (V_tcp_fastopen_psk_enable && !new) {
706 		} else if (!V_tcp_fastopen_psk_enable && new) {
720 	unsigned int new;
722 	new = V_tcp_fastopen_server_enable;
723 	error = sysctl_handle_int(oidp, &new, 0, req);
725 		if (V_tcp_fastopen_server_enable && !new) {
737 		} else if (!V_tcp_fastopen_server_enable && new) {
806 	unsigned int new;
809 	new = V_tcp_fastopen_ccache.bucket_limit;
810 	error = sysctl_handle_int(oidp, &new, 0, req);
812 		if ((new == 0) || (new > INT_MAX))
815 			if (new < V_tcp_fastopen_ccache.bucket_limit) {
819 					tcp_fastopen_ccache_bucket_trim(ccb, new);
822 			V_tcp_fastopen_ccache.bucket_limit = new;
833 	unsigned int new, i;
835 	new = V_tcp_fastopen_client_enable;
836 	error = sysctl_handle_int(oidp, &new, 0, req);
838 		if (V_tcp_fastopen_client_enable && !new) {
848 		} else if (!V_tcp_fastopen_client_enable && new) {
943 		 * A new entry for this path will be created when a SYN|ACK
1057 	 * 1. Create a new entry, or