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8 * modification, are permitted provided that the following conditions
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31 * @(#)in.h 8.3 (Berkeley) 1/3/94
34 #ifndef _LIBNETBSD_NETINET_IN_H_
35 #define _LIBNETBSD_NETINET_IN_H_
37 #include_next <netinet/in.h>
40 * Local port number conventions:
42 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root),
43 * unless a kernel is compiled with IPNOPRIVPORTS defined.
45 * When a user does a bind(2) or connect(2) with a port number of zero,
46 * a non-conflicting local port address is chosen.
48 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although
49 * that is settable by sysctl(3); net.inet.ip.anonportmin and
50 * net.inet.ip.anonportmax respectively.
52 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this
53 * default assignment range.
55 * The value IP_PORTRANGE_DEFAULT causes the default behavior.
57 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT,
58 * and exists only for FreeBSD compatibility purposes.
60 * The value IP_PORTRANGE_LOW changes the range to the "low" are
61 * that is (by convention) restricted to privileged processes.
62 * This convention is based on "vouchsafe" principles only.
63 * It is only secure if you trust the remote host to restrict these ports.
64 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX.
67 #define IPPORT_ANONMIN 49152
68 #define IPPORT_ANONMAX 65535
69 #define IPPORT_RESERVEDMIN 600
70 #define IPPORT_RESERVEDMAX (IPPORT_RESERVED-1)