/ext/socket/mkconstants.rb
Ruby | 814 lines | 756 code | 38 blank | 20 comment | 29 complexity | 6fb5406cad5a06cb3073c10ca2b386c1 MD5 | raw file
Possible License(s): GPL-2.0, BSD-3-Clause, AGPL-3.0
- # frozen_string_literal: false
- require 'optparse'
- require 'erb'
- opt = OptionParser.new
- opt.def_option('-h', 'help') {
- puts opt
- exit 0
- }
- opt_o = nil
- opt.def_option('-o FILE', 'specify output file') {|filename|
- opt_o = filename
- }
- opt_H = nil
- opt.def_option('-H FILE', 'specify output header file') {|filename|
- opt_H = filename
- }
- C_ESC = {
- "\\" => "\\\\",
- '"' => '\"',
- "\n" => '\n',
- }
- 0x00.upto(0x1f) {|ch| C_ESC[[ch].pack("C")] ||= "\\%03o" % ch }
- 0x7f.upto(0xff) {|ch| C_ESC[[ch].pack("C")] = "\\%03o" % ch }
- C_ESC_PAT = Regexp.union(*C_ESC.keys)
- def c_str(str)
- '"' + str.gsub(C_ESC_PAT) {|s| C_ESC[s]} + '"'
- end
- opt.parse!
- h = {}
- COMMENTS = Hash.new { |h, name| h[name] = name }
- DATA.each_line {|s|
- name, default_value, comment = s.chomp.split(/\s+/, 3)
- next unless name && name[0] != ?#
- default_value = nil if default_value == 'nil'
- if h.has_key? name
- warn "#{$.}: warning: duplicate name: #{name}"
- next
- end
- h[name] = default_value
- COMMENTS[name] = comment
- }
- DEFS = h.to_a
- def each_const
- DEFS.each {|name, default_value|
- guard = nil
- if /\A(AF_INET6|PF_INET6|IPV6_.*)\z/ =~ name
- # IPv6 is not supported although AF_INET6 is defined on mingw
- guard = "defined(INET6)"
- end
- yield guard, name, default_value
- }
- end
- def each_name(pat)
- DEFS.each {|name, default_value|
- next if pat !~ name
- yield name
- }
- end
- erb_new = lambda do |src, safe, trim|
- if ERB.instance_method(:initialize).parameters.assoc(:key) # Ruby 2.6+
- ERB.new(src, trim_mode: trim)
- else
- ERB.new(src, safe, trim)
- end
- end
- erb_new.call(<<'EOS', nil, '%').def_method(Object, "gen_const_decls")
- % each_const {|guard, name, default_value|
- #if !defined(<%=name%>)
- # if defined(HAVE_CONST_<%=name.upcase%>)
- # define <%=name%> <%=name%>
- %if default_value
- # else
- # define <%=name%> <%=default_value%>
- %end
- # endif
- #endif
- % }
- EOS
- erb_new.call(<<'EOS', nil, '%').def_method(Object, "gen_const_defs_in_guard(name, default_value)")
- #if defined(<%=name%>)
- /* <%= COMMENTS[name] %> */
- rb_define_const(rb_cSocket, <%=c_str name%>, INTEGER2NUM(<%=name%>));
- /* <%= COMMENTS[name] %> */
- rb_define_const(rb_mSockConst, <%=c_str name%>, INTEGER2NUM(<%=name%>));
- #endif
- EOS
- erb_new.call(<<'EOS', nil, '%').def_method(Object, "gen_const_defs")
- % each_const {|guard, name, default_value|
- % if guard
- #if <%=guard%>
- <%= gen_const_defs_in_guard(name, default_value).chomp %>
- #endif
- % else
- <%= gen_const_defs_in_guard(name, default_value).chomp %>
- % end
- % }
- EOS
- def reverse_each_name(pat)
- DEFS.reverse_each {|name, default_value|
- next if pat !~ name
- yield name
- }
- end
- def each_names_with_len(pat, prefix_optional=nil)
- h = {}
- DEFS.each {|name, default_value|
- next if pat !~ name
- (h[name.length] ||= []) << [name, name]
- }
- if prefix_optional
- if Regexp === prefix_optional
- prefix_pat = prefix_optional
- else
- prefix_pat = /\A#{Regexp.escape prefix_optional}/
- end
- DEFS.each {|const, default_value|
- next if pat !~ const
- next if prefix_pat !~ const
- name = $'
- (h[name.length] ||= []) << [name, const]
- }
- end
- hh = {}
- h.each {|len, pairs|
- pairs.each {|name, const|
- raise "name crash: #{name}" if hh[name]
- hh[name] = true
- }
- }
- h.keys.sort.each {|len|
- yield h[len], len
- }
- end
- erb_new.call(<<'EOS', nil, '%').def_method(Object, "gen_name_to_int_decl(funcname, pat, prefix_optional, guard=nil)")
- %if guard
- #ifdef <%=guard%>
- int <%=funcname%>(const char *str, long len, int *valp);
- #endif
- %else
- int <%=funcname%>(const char *str, long len, int *valp);
- %end
- EOS
- erb_new.call(<<'EOS', nil, '%').def_method(Object, "gen_name_to_int_func_in_guard(funcname, pat, prefix_optional, guard=nil)")
- int
- <%=funcname%>(const char *str, long len, int *valp)
- {
- switch (len) {
- % each_names_with_len(pat, prefix_optional) {|pairs, len|
- case <%=len%>:
- % pairs.each {|name, const|
- #ifdef <%=const%>
- if (memcmp(str, <%=c_str name%>, <%=len%>) == 0) { *valp = <%=const%>; return 0; }
- #endif
- % }
- return -1;
- % }
- default:
- if (!str || !valp) {/* wrong argument */}
- return -1;
- }
- }
- EOS
- erb_new.call(<<'EOS', nil, '%').def_method(Object, "gen_name_to_int_func(funcname, pat, prefix_optional, guard=nil)")
- %if guard
- #ifdef <%=guard%>
- <%=gen_name_to_int_func_in_guard(funcname, pat, prefix_optional, guard)%>
- #endif
- %else
- <%=gen_name_to_int_func_in_guard(funcname, pat, prefix_optional, guard)%>
- %end
- EOS
- NAME_TO_INT_DEFS = []
- def def_name_to_int(funcname, pat, prefix_optional, guard=nil)
- decl = gen_name_to_int_decl(funcname, pat, prefix_optional, guard)
- func = gen_name_to_int_func(funcname, pat, prefix_optional, guard)
- NAME_TO_INT_DEFS << [decl, func]
- end
- def reverse_each_name_with_prefix_optional(pat, prefix_pat)
- reverse_each_name(pat) {|n|
- yield n, n
- }
- if prefix_pat
- reverse_each_name(pat) {|n|
- next if prefix_pat !~ n
- yield n, $'
- }
- end
- end
- erb_new.call(<<'EOS', nil, '%').def_method(Object, "gen_int_to_name_hash(hash_var, pat, prefix_pat)")
- <%=hash_var%> = st_init_numtable();
- % reverse_each_name_with_prefix_optional(pat, prefix_pat) {|n,s|
- #ifdef <%=n%>
- st_insert(<%=hash_var%>, (st_data_t)<%=n%>, (st_data_t)rb_intern2(<%=c_str s%>, <%=s.length%>));
- #endif
- % }
- EOS
- erb_new.call(<<'EOS', nil, '%').def_method(Object, "gen_int_to_name_func(func_name, hash_var)")
- ID
- <%=func_name%>(int val)
- {
- st_data_t name;
- if (st_lookup(<%=hash_var%>, (st_data_t)val, &name))
- return (ID)name;
- return 0;
- }
- EOS
- erb_new.call(<<'EOS', nil, '%').def_method(Object, "gen_int_to_name_decl(func_name, hash_var)")
- ID <%=func_name%>(int val);
- EOS
- INTERN_DEFS = []
- def def_intern(func_name, pat, prefix_optional=nil)
- prefix_pat = nil
- if prefix_optional
- if Regexp === prefix_optional
- prefix_pat = prefix_optional
- else
- prefix_pat = /\A#{Regexp.escape prefix_optional}/
- end
- end
- hash_var = "#{func_name}_hash"
- vardef = "static st_table *#{hash_var};"
- gen_hash = gen_int_to_name_hash(hash_var, pat, prefix_pat)
- decl = gen_int_to_name_decl(func_name, hash_var)
- func = gen_int_to_name_func(func_name, hash_var)
- INTERN_DEFS << [vardef, gen_hash, decl, func]
- end
- def_name_to_int("rsock_family_to_int", /\A(AF_|PF_)/, "AF_")
- def_name_to_int("rsock_socktype_to_int", /\ASOCK_/, "SOCK_")
- def_name_to_int("rsock_ipproto_to_int", /\AIPPROTO_/, "IPPROTO_")
- def_name_to_int("rsock_unknown_level_to_int", /\ASOL_SOCKET\z/, "SOL_")
- def_name_to_int("rsock_ip_level_to_int", /\A(SOL_SOCKET\z|IPPROTO_)/, /\A(SOL_|IPPROTO_)/)
- def_name_to_int("rsock_so_optname_to_int", /\ASO_/, "SO_")
- def_name_to_int("rsock_ip_optname_to_int", /\AIP_/, "IP_")
- def_name_to_int("rsock_ipv6_optname_to_int", /\AIPV6_/, "IPV6_", "IPPROTO_IPV6")
- def_name_to_int("rsock_tcp_optname_to_int", /\ATCP_/, "TCP_")
- def_name_to_int("rsock_udp_optname_to_int", /\AUDP_/, "UDP_")
- def_name_to_int("rsock_shutdown_how_to_int", /\ASHUT_/, "SHUT_")
- def_name_to_int("rsock_scm_optname_to_int", /\ASCM_/, "SCM_")
- def_intern('rsock_intern_family', /\AAF_/)
- def_intern('rsock_intern_family_noprefix', /\AAF_/, "AF_")
- def_intern('rsock_intern_protocol_family', /\APF_/)
- def_intern('rsock_intern_socktype', /\ASOCK_/)
- def_intern('rsock_intern_ipproto', /\AIPPROTO_/)
- def_intern('rsock_intern_iplevel', /\A(SOL_SOCKET\z|IPPROTO_)/, /\A(SOL_|IPPROTO_)/)
- def_intern('rsock_intern_so_optname', /\ASO_/, "SO_")
- def_intern('rsock_intern_ip_optname', /\AIP_/, "IP_")
- def_intern('rsock_intern_ipv6_optname', /\AIPV6_/, "IPV6_")
- def_intern('rsock_intern_tcp_optname', /\ATCP_/, "TCP_")
- def_intern('rsock_intern_udp_optname', /\AUDP_/, "UDP_")
- def_intern('rsock_intern_scm_optname', /\ASCM_/, "SCM_")
- def_intern('rsock_intern_local_optname', /\ALOCAL_/, "LOCAL_")
- result = erb_new.call(<<'EOS', nil, '%').result(binding)
- /* autogenerated file */
- <%= INTERN_DEFS.map {|vardef, gen_hash, decl, func| vardef }.join("\n") %>
- #ifdef HAVE_LONG_LONG
- #define INTEGER2NUM(n) \
- (FIXNUM_MAX < (n) ? ULL2NUM(n) : \
- FIXNUM_MIN > (LONG_LONG)(n) ? LL2NUM(n) : \
- LONG2FIX(n))
- #else
- #define INTEGER2NUM(n) \
- (FIXNUM_MAX < (n) ? ULONG2NUM(n) : \
- FIXNUM_MIN > (long)(n) ? LONG2NUM(n) : \
- LONG2FIX(n))
- #endif
- static void
- init_constants(void)
- {
- /*
- * Document-module: Socket::Constants
- *
- * Socket::Constants provides socket-related constants. All possible
- * socket constants are listed in the documentation but they may not all
- * be present on your platform.
- *
- * If the underlying platform doesn't define a constant the corresponding
- * Ruby constant is not defined.
- *
- */
- rb_mSockConst = rb_define_module_under(rb_cSocket, "Constants");
- <%= gen_const_defs %>
- <%= INTERN_DEFS.map {|vardef, gen_hash, decl, func| gen_hash }.join("\n") %>
- }
- <%= NAME_TO_INT_DEFS.map {|decl, func| func }.join("\n") %>
- <%= INTERN_DEFS.map {|vardef, gen_hash, decl, func| func }.join("\n") %>
- EOS
- header_result = erb_new.call(<<'EOS', nil, '%').result(binding)
- /* autogenerated file */
- <%= gen_const_decls %>
- <%= NAME_TO_INT_DEFS.map {|decl, func| decl }.join("\n") %>
- <%= INTERN_DEFS.map {|vardef, gen_hash, decl, func| decl }.join("\n") %>
- EOS
- if opt_H
- File.open(opt_H, 'w') {|f|
- f << header_result
- }
- else
- result = header_result + result
- end
- if opt_o
- File.open(opt_o, 'w') {|f|
- f << result
- }
- else
- $stdout << result
- end
- __END__
- SOCK_STREAM nil A stream socket provides a sequenced, reliable two-way connection for a byte stream
- SOCK_DGRAM nil A datagram socket provides connectionless, unreliable messaging
- SOCK_RAW nil A raw socket provides low-level access for direct access or implementing network protocols
- SOCK_RDM nil A reliable datagram socket provides reliable delivery of messages
- SOCK_SEQPACKET nil A sequential packet socket provides sequenced, reliable two-way connection for datagrams
- SOCK_PACKET nil Device-level packet access
- AF_UNSPEC nil Unspecified protocol, any supported address family
- PF_UNSPEC nil Unspecified protocol, any supported address family
- AF_INET nil IPv4 protocol
- PF_INET nil IPv4 protocol
- AF_INET6 nil IPv6 protocol
- PF_INET6 nil IPv6 protocol
- AF_UNIX nil UNIX sockets
- PF_UNIX nil UNIX sockets
- AF_AX25 nil AX.25 protocol
- PF_AX25 nil AX.25 protocol
- AF_IPX nil IPX protocol
- PF_IPX nil IPX protocol
- AF_APPLETALK nil AppleTalk protocol
- PF_APPLETALK nil AppleTalk protocol
- AF_LOCAL nil Host-internal protocols
- PF_LOCAL nil Host-internal protocols
- AF_IMPLINK nil ARPANET IMP protocol
- PF_IMPLINK nil ARPANET IMP protocol
- AF_PUP nil PARC Universal Packet protocol
- PF_PUP nil PARC Universal Packet protocol
- AF_CHAOS nil MIT CHAOS protocols
- PF_CHAOS nil MIT CHAOS protocols
- AF_NS nil XEROX NS protocols
- PF_NS nil XEROX NS protocols
- AF_ISO nil ISO Open Systems Interconnection protocols
- PF_ISO nil ISO Open Systems Interconnection protocols
- AF_OSI nil ISO Open Systems Interconnection protocols
- PF_OSI nil ISO Open Systems Interconnection protocols
- AF_ECMA nil European Computer Manufacturers protocols
- PF_ECMA nil European Computer Manufacturers protocols
- AF_DATAKIT nil Datakit protocol
- PF_DATAKIT nil Datakit protocol
- AF_CCITT nil CCITT (now ITU-T) protocols
- PF_CCITT nil CCITT (now ITU-T) protocols
- AF_SNA nil IBM SNA protocol
- PF_SNA nil IBM SNA protocol
- AF_DEC nil DECnet protocol
- PF_DEC nil DECnet protocol
- AF_DLI nil DEC Direct Data Link Interface protocol
- PF_DLI nil DEC Direct Data Link Interface protocol
- AF_LAT nil Local Area Transport protocol
- PF_LAT nil Local Area Transport protocol
- AF_HYLINK nil NSC Hyperchannel protocol
- PF_HYLINK nil NSC Hyperchannel protocol
- AF_ROUTE nil Internal routing protocol
- PF_ROUTE nil Internal routing protocol
- AF_LINK nil Link layer interface
- PF_LINK nil Link layer interface
- AF_COIP nil Connection-oriented IP
- PF_COIP nil Connection-oriented IP
- AF_CNT nil Computer Network Technology
- PF_CNT nil Computer Network Technology
- AF_SIP nil Simple Internet Protocol
- PF_SIP nil Simple Internet Protocol
- AF_NDRV nil Network driver raw access
- PF_NDRV nil Network driver raw access
- AF_ISDN nil Integrated Services Digital Network
- PF_ISDN nil Integrated Services Digital Network
- AF_NATM nil Native ATM access
- PF_NATM nil Native ATM access
- AF_SYSTEM
- PF_SYSTEM
- AF_NETBIOS nil NetBIOS
- PF_NETBIOS nil NetBIOS
- AF_PPP nil Point-to-Point Protocol
- PF_PPP nil Point-to-Point Protocol
- AF_ATM nil Asynchronous Transfer Mode
- PF_ATM nil Asynchronous Transfer Mode
- AF_NETGRAPH nil Netgraph sockets
- PF_NETGRAPH nil Netgraph sockets
- AF_MAX nil Maximum address family for this platform
- PF_MAX nil Maximum address family for this platform
- AF_PACKET nil Direct link-layer access
- PF_PACKET nil Direct link-layer access
- AF_E164 nil CCITT (ITU-T) E.164 recommendation
- PF_XTP nil eXpress Transfer Protocol
- PF_RTIP
- PF_PIP
- PF_KEY
- MSG_OOB nil Process out-of-band data
- MSG_PEEK nil Peek at incoming message
- MSG_DONTROUTE nil Send without using the routing tables
- MSG_EOR nil Data completes record
- MSG_TRUNC nil Data discarded before delivery
- MSG_CTRUNC nil Control data lost before delivery
- MSG_WAITALL nil Wait for full request or error
- MSG_DONTWAIT nil This message should be non-blocking
- MSG_EOF nil Data completes connection
- MSG_FLUSH nil Start of a hold sequence. Dumps to so_temp
- MSG_HOLD nil Hold fragment in so_temp
- MSG_SEND nil Send the packet in so_temp
- MSG_HAVEMORE nil Data ready to be read
- MSG_RCVMORE nil Data remains in the current packet
- MSG_COMPAT nil End of record
- MSG_PROXY nil Wait for full request
- MSG_FIN
- MSG_SYN
- MSG_CONFIRM nil Confirm path validity
- MSG_RST
- MSG_ERRQUEUE nil Fetch message from error queue
- MSG_NOSIGNAL nil Do not generate SIGPIPE
- MSG_MORE nil Sender will send more
- MSG_FASTOPEN nil Reduce step of the handshake process
- SOL_SOCKET nil Socket-level options
- SOL_IP nil IP socket options
- SOL_IPX nil IPX socket options
- SOL_AX25 nil AX.25 socket options
- SOL_ATALK nil AppleTalk socket options
- SOL_TCP nil TCP socket options
- SOL_UDP nil UDP socket options
- IPPROTO_IP 0 Dummy protocol for IP
- IPPROTO_ICMP 1 Control message protocol
- IPPROTO_IGMP nil Group Management Protocol
- IPPROTO_GGP nil Gateway to Gateway Protocol
- IPPROTO_TCP 6 TCP
- IPPROTO_EGP nil Exterior Gateway Protocol
- IPPROTO_PUP nil PARC Universal Packet protocol
- IPPROTO_UDP 17 UDP
- IPPROTO_IDP nil XNS IDP
- IPPROTO_HELLO nil "hello" routing protocol
- IPPROTO_ND nil Sun net disk protocol
- IPPROTO_TP nil ISO transport protocol class 4
- IPPROTO_XTP nil Xpress Transport Protocol
- IPPROTO_EON nil ISO cnlp
- IPPROTO_BIP
- IPPROTO_AH nil IP6 auth header
- IPPROTO_DSTOPTS nil IP6 destination option
- IPPROTO_ESP nil IP6 Encapsulated Security Payload
- IPPROTO_FRAGMENT nil IP6 fragmentation header
- IPPROTO_HOPOPTS nil IP6 hop-by-hop options
- IPPROTO_ICMPV6 nil ICMP6
- IPPROTO_IPV6 nil IP6 header
- IPPROTO_NONE nil IP6 no next header
- IPPROTO_ROUTING nil IP6 routing header
- IPPROTO_RAW 255 Raw IP packet
- IPPROTO_MAX nil Maximum IPPROTO constant
- # Some port configuration
- IPPORT_RESERVED 1024 Default minimum address for bind or connect
- IPPORT_USERRESERVED 5000 Default maximum address for bind or connect
- # Some reserved IP v.4 addresses
- INADDR_ANY 0x00000000 A socket bound to INADDR_ANY receives packets from all interfaces and sends from the default IP address
- INADDR_BROADCAST 0xffffffff The network broadcast address
- INADDR_LOOPBACK 0x7F000001 The loopback address
- INADDR_UNSPEC_GROUP 0xe0000000 The reserved multicast group
- INADDR_ALLHOSTS_GROUP 0xe0000001 Multicast group for all systems on this subset
- INADDR_MAX_LOCAL_GROUP 0xe00000ff The last local network multicast group
- INADDR_NONE 0xffffffff A bitmask for matching no valid IP address
- # IP [gs]etsockopt options
- IP_OPTIONS nil IP options to be included in packets
- IP_HDRINCL nil Header is included with data
- IP_TOS nil IP type-of-service
- IP_TTL nil IP time-to-live
- IP_RECVOPTS nil Receive all IP options with datagram
- IP_RECVRETOPTS nil Receive all IP options for response
- IP_RECVDSTADDR nil Receive IP destination address with datagram
- IP_RETOPTS nil IP options to be included in datagrams
- IP_MINTTL nil Minimum TTL allowed for received packets
- IP_DONTFRAG nil Don't fragment packets
- IP_SENDSRCADDR nil Source address for outgoing UDP datagrams
- IP_ONESBCAST nil Force outgoing broadcast datagrams to have the undirected broadcast address
- IP_RECVTTL nil Receive IP TTL with datagrams
- IP_RECVIF nil Receive interface information with datagrams
- IP_RECVSLLA nil Receive link-layer address with datagrams
- IP_PORTRANGE nil Set the port range for sockets with unspecified port numbers
- IP_MULTICAST_IF nil IP multicast interface
- IP_MULTICAST_TTL nil IP multicast TTL
- IP_MULTICAST_LOOP nil IP multicast loopback
- IP_ADD_MEMBERSHIP nil Add a multicast group membership
- IP_DROP_MEMBERSHIP nil Drop a multicast group membership
- IP_DEFAULT_MULTICAST_TTL nil Default multicast TTL
- IP_DEFAULT_MULTICAST_LOOP nil Default multicast loopback
- IP_MAX_MEMBERSHIPS nil Maximum number multicast groups a socket can join
- IP_ROUTER_ALERT nil Notify transit routers to more closely examine the contents of an IP packet
- IP_PKTINFO nil Receive packet information with datagrams
- IP_PKTOPTIONS nil Receive packet options with datagrams
- IP_MTU_DISCOVER nil Path MTU discovery
- IP_RECVERR nil Enable extended reliable error message passing
- IP_RECVTOS nil Receive TOS with incoming packets
- IP_MTU nil The Maximum Transmission Unit of the socket
- IP_FREEBIND nil Allow binding to nonexistent IP addresses
- IP_IPSEC_POLICY nil IPsec security policy
- IP_XFRM_POLICY
- IP_PASSSEC nil Retrieve security context with datagram
- IP_TRANSPARENT nil Transparent proxy
- IP_PMTUDISC_DONT nil Never send DF frames
- IP_PMTUDISC_WANT nil Use per-route hints
- IP_PMTUDISC_DO nil Always send DF frames
- IP_UNBLOCK_SOURCE nil Unblock IPv4 multicast packets with a give source address
- IP_BLOCK_SOURCE nil Block IPv4 multicast packets with a give source address
- IP_ADD_SOURCE_MEMBERSHIP nil Add a multicast group membership
- IP_DROP_SOURCE_MEMBERSHIP nil Drop a multicast group membership
- IP_MSFILTER nil Multicast source filtering
- MCAST_JOIN_GROUP nil Join a multicast group
- MCAST_BLOCK_SOURCE nil Block multicast packets from this source
- MCAST_UNBLOCK_SOURCE nil Unblock multicast packets from this source
- MCAST_LEAVE_GROUP nil Leave a multicast group
- MCAST_JOIN_SOURCE_GROUP nil Join a multicast source group
- MCAST_LEAVE_SOURCE_GROUP nil Leave a multicast source group
- MCAST_MSFILTER nil Multicast source filtering
- MCAST_EXCLUDE nil Exclusive multicast source filter
- MCAST_INCLUDE nil Inclusive multicast source filter
- SO_DEBUG nil Debug info recording
- SO_REUSEADDR nil Allow local address reuse
- SO_REUSEPORT nil Allow local address and port reuse
- SO_TYPE nil Get the socket type
- SO_ERROR nil Get and clear the error status
- SO_DONTROUTE nil Use interface addresses
- SO_BROADCAST nil Permit sending of broadcast messages
- SO_SNDBUF nil Send buffer size
- SO_RCVBUF nil Receive buffer size
- SO_SNDBUFFORCE nil Send buffer size without wmem_max limit (Linux 2.6.14)
- SO_RCVBUFFORCE nil Receive buffer size without rmem_max limit (Linux 2.6.14)
- SO_KEEPALIVE nil Keep connections alive
- SO_OOBINLINE nil Leave received out-of-band data in-line
- SO_NO_CHECK nil Disable checksums
- SO_PRIORITY nil The protocol-defined priority for all packets on this socket
- SO_LINGER nil Linger on close if data is present
- SO_PASSCRED nil Receive SCM_CREDENTIALS messages
- SO_PEERCRED nil The credentials of the foreign process connected to this socket
- SO_RCVLOWAT nil Receive low-water mark
- SO_SNDLOWAT nil Send low-water mark
- SO_RCVTIMEO nil Receive timeout
- SO_SNDTIMEO nil Send timeout
- SO_ACCEPTCONN nil Socket has had listen() called on it
- SO_USELOOPBACK nil Bypass hardware when possible
- SO_ACCEPTFILTER nil There is an accept filter
- SO_DONTTRUNC nil Retain unread data
- SO_WANTMORE nil Give a hint when more data is ready
- SO_WANTOOBFLAG nil OOB data is wanted in MSG_FLAG on receive
- SO_NREAD nil Get first packet byte count
- SO_NKE nil Install socket-level Network Kernel Extension
- SO_NOSIGPIPE nil Don't SIGPIPE on EPIPE
- SO_SECURITY_AUTHENTICATION
- SO_SECURITY_ENCRYPTION_TRANSPORT
- SO_SECURITY_ENCRYPTION_NETWORK
- SO_BINDTODEVICE nil Only send packets from the given interface
- SO_ATTACH_FILTER nil Attach an accept filter
- SO_DETACH_FILTER nil Detach an accept filter
- SO_GET_FILTER nil Obtain filter set by SO_ATTACH_FILTER (Linux 3.8)
- SO_PEERNAME nil Name of the connecting user
- SO_TIMESTAMP nil Receive timestamp with datagrams (timeval)
- SO_TIMESTAMPNS nil Receive nanosecond timestamp with datagrams (timespec)
- SO_BINTIME nil Receive timestamp with datagrams (bintime)
- SO_RECVUCRED nil Receive user credentials with datagram
- SO_MAC_EXEMPT nil Mandatory Access Control exemption for unlabeled peers
- SO_ALLZONES nil Bypass zone boundaries
- SO_PEERSEC nil Obtain the security credentials (Linux 2.6.2)
- SO_PASSSEC nil Toggle security context passing (Linux 2.6.18)
- SO_MARK nil Set the mark for mark-based routing (Linux 2.6.25)
- SO_TIMESTAMPING nil Time stamping of incoming and outgoing packets (Linux 2.6.30)
- SO_PROTOCOL nil Protocol given for socket() (Linux 2.6.32)
- SO_DOMAIN nil Domain given for socket() (Linux 2.6.32)
- SO_RXQ_OVFL nil Toggle cmsg for number of packets dropped (Linux 2.6.33)
- SO_WIFI_STATUS nil Toggle cmsg for wifi status (Linux 3.3)
- SO_PEEK_OFF nil Set the peek offset (Linux 3.4)
- SO_NOFCS nil Set netns of a socket (Linux 3.4)
- SO_LOCK_FILTER nil Lock the filter attached to a socket (Linux 3.9)
- SO_SELECT_ERR_QUEUE nil Make select() detect socket error queue with errorfds (Linux 3.10)
- SO_BUSY_POLL nil Set the threshold in microseconds for low latency polling (Linux 3.11)
- SO_MAX_PACING_RATE nil Cap the rate computed by transport layer. [bytes per second] (Linux 3.13)
- SO_BPF_EXTENSIONS nil Query supported BPF extensions (Linux 3.14)
- SOPRI_INTERACTIVE nil Interactive socket priority
- SOPRI_NORMAL nil Normal socket priority
- SOPRI_BACKGROUND nil Background socket priority
- IPX_TYPE
- TCP_NODELAY nil Don't delay sending to coalesce packets
- TCP_MAXSEG nil Set maximum segment size
- TCP_CORK nil Don't send partial frames (Linux 2.2, glibc 2.2)
- TCP_DEFER_ACCEPT nil Don't notify a listening socket until data is ready (Linux 2.4, glibc 2.2)
- TCP_INFO nil Retrieve information about this socket (Linux 2.4, glibc 2.2)
- TCP_KEEPCNT nil Maximum number of keepalive probes allowed before dropping a connection (Linux 2.4, glibc 2.2)
- TCP_KEEPIDLE nil Idle time before keepalive probes are sent (Linux 2.4, glibc 2.2)
- TCP_KEEPINTVL nil Time between keepalive probes (Linux 2.4, glibc 2.2)
- TCP_LINGER2 nil Lifetime of orphaned FIN_WAIT2 sockets (Linux 2.4, glibc 2.2)
- TCP_MD5SIG nil Use MD5 digests (RFC2385, Linux 2.6.20, glibc 2.7)
- TCP_NOOPT nil Don't use TCP options
- TCP_NOPUSH nil Don't push the last block of write
- TCP_QUICKACK nil Enable quickack mode (Linux 2.4.4, glibc 2.3)
- TCP_SYNCNT nil Number of SYN retransmits before a connection is dropped (Linux 2.4, glibc 2.2)
- TCP_WINDOW_CLAMP nil Clamp the size of the advertised window (Linux 2.4, glibc 2.2)
- TCP_FASTOPEN nil Reduce step of the handshake process (Linux 3.7, glibc 2.18)
- TCP_CONGESTION nil TCP congestion control algorithm (Linux 2.6.13, glibc 2.6)
- TCP_COOKIE_TRANSACTIONS nil TCP Cookie Transactions (Linux 2.6.33, glibc 2.18)
- TCP_QUEUE_SEQ nil Sequence of a queue for repair mode (Linux 3.5, glibc 2.18)
- TCP_REPAIR nil Repair mode (Linux 3.5, glibc 2.18)
- TCP_REPAIR_OPTIONS nil Options for repair mode (Linux 3.5, glibc 2.18)
- TCP_REPAIR_QUEUE nil Queue for repair mode (Linux 3.5, glibc 2.18)
- TCP_THIN_DUPACK nil Duplicated acknowledgments handling for thin-streams (Linux 2.6.34, glibc 2.18)
- TCP_THIN_LINEAR_TIMEOUTS nil Linear timeouts for thin-streams (Linux 2.6.34, glibc 2.18)
- TCP_TIMESTAMP nil TCP timestamp (Linux 3.9, glibc 2.18)
- TCP_USER_TIMEOUT nil Max timeout before a TCP connection is aborted (Linux 2.6.37, glibc 2.18)
- UDP_CORK nil Don't send partial frames (Linux 2.5.44, glibc 2.11)
- EAI_ADDRFAMILY nil Address family for hostname not supported
- EAI_AGAIN nil Temporary failure in name resolution
- EAI_BADFLAGS nil Invalid flags
- EAI_FAIL nil Non-recoverable failure in name resolution
- EAI_FAMILY nil Address family not supported
- EAI_MEMORY nil Memory allocation failure
- EAI_NODATA nil No address associated with hostname
- EAI_NONAME nil Hostname nor servname, or not known
- EAI_OVERFLOW nil Argument buffer overflow
- EAI_SERVICE nil Servname not supported for socket type
- EAI_SOCKTYPE nil Socket type not supported
- EAI_SYSTEM nil System error returned in errno
- EAI_BADHINTS nil Invalid value for hints
- EAI_PROTOCOL nil Resolved protocol is unknown
- EAI_MAX nil Maximum error code from getaddrinfo
- AI_PASSIVE nil Get address to use with bind()
- AI_CANONNAME nil Fill in the canonical name
- AI_NUMERICHOST nil Prevent host name resolution
- AI_NUMERICSERV nil Prevent service name resolution
- AI_MASK nil Valid flag mask for getaddrinfo (not for application use)
- AI_ALL nil Allow all addresses
- AI_V4MAPPED_CFG nil Accept IPv4 mapped addresses if the kernel supports it
- AI_ADDRCONFIG nil Accept only if any address is assigned
- AI_V4MAPPED nil Accept IPv4-mapped IPv6 addresses
- AI_DEFAULT nil Default flags for getaddrinfo
- NI_MAXHOST nil Maximum length of a hostname
- NI_MAXSERV nil Maximum length of a service name
- NI_NOFQDN nil An FQDN is not required for local hosts, return only the local part
- NI_NUMERICHOST nil Return a numeric address
- NI_NAMEREQD nil A name is required
- NI_NUMERICSERV nil Return the service name as a digit string
- NI_DGRAM nil The service specified is a datagram service (looks up UDP ports)
- SHUT_RD 0 Shut down the reading side of the socket
- SHUT_WR 1 Shut down the writing side of the socket
- SHUT_RDWR 2 Shut down the both sides of the socket
- IPV6_JOIN_GROUP nil Join a group membership
- IPV6_LEAVE_GROUP nil Leave a group membership
- IPV6_MULTICAST_HOPS nil IP6 multicast hops
- IPV6_MULTICAST_IF nil IP6 multicast interface
- IPV6_MULTICAST_LOOP nil IP6 multicast loopback
- IPV6_UNICAST_HOPS nil IP6 unicast hops
- IPV6_V6ONLY nil Only bind IPv6 with a wildcard bind
- IPV6_CHECKSUM nil Checksum offset for raw sockets
- IPV6_DONTFRAG nil Don't fragment packets
- IPV6_DSTOPTS nil Destination option
- IPV6_HOPLIMIT nil Hop limit
- IPV6_HOPOPTS nil Hop-by-hop option
- IPV6_NEXTHOP nil Next hop address
- IPV6_PATHMTU nil Retrieve current path MTU
- IPV6_PKTINFO nil Receive packet information with datagram
- IPV6_RECVDSTOPTS nil Receive all IP6 options for response
- IPV6_RECVHOPLIMIT nil Receive hop limit with datagram
- IPV6_RECVHOPOPTS nil Receive hop-by-hop options
- IPV6_RECVPKTINFO nil Receive destination IP address and incoming interface
- IPV6_RECVRTHDR nil Receive routing header
- IPV6_RECVTCLASS nil Receive traffic class
- IPV6_RTHDR nil Allows removal of sticky routing headers
- IPV6_RTHDRDSTOPTS nil Allows removal of sticky destination options header
- IPV6_RTHDR_TYPE_0 nil Routing header type 0
- IPV6_RECVPATHMTU nil Receive current path MTU with datagram
- IPV6_TCLASS nil Specify the traffic class
- IPV6_USE_MIN_MTU nil Use the minimum MTU size
- INET_ADDRSTRLEN 16 Maximum length of an IPv4 address string
- INET6_ADDRSTRLEN 46 Maximum length of an IPv6 address string
- IFNAMSIZ nil Maximum interface name size
- IF_NAMESIZE nil Maximum interface name size
- SOMAXCONN 5 Maximum connection requests that may be queued for a socket
- SCM_RIGHTS nil Access rights
- SCM_TIMESTAMP nil Timestamp (timeval)
- SCM_TIMESTAMPNS nil Timespec (timespec)
- SCM_TIMESTAMPING nil Timestamp (timespec list) (Linux 2.6.30)
- SCM_BINTIME nil Timestamp (bintime)
- SCM_CREDENTIALS nil The sender's credentials
- SCM_CREDS nil Process credentials
- SCM_UCRED nil User credentials
- SCM_WIFI_STATUS nil Wifi status (Linux 3.3)
- LOCAL_PEERCRED nil Retrieve peer credentials
- LOCAL_CREDS nil Pass credentials to receiver
- LOCAL_CONNWAIT nil Connect blocks until accepted
- IFF_802_1Q_VLAN nil 802.1Q VLAN device
- IFF_ALLMULTI nil receive all multicast packets
- IFF_ALTPHYS nil use alternate physical connection
- IFF_AUTOMEDIA nil auto media select active
- IFF_BONDING nil bonding master or slave
- IFF_BRIDGE_PORT nil device used as bridge port
- IFF_BROADCAST nil broadcast address valid
- IFF_CANTCONFIG nil unconfigurable using ioctl(2)
- IFF_DEBUG nil turn on debugging
- IFF_DISABLE_NETPOLL nil disable netpoll at run-time
- IFF_DONT_BRIDGE nil disallow bridging this ether dev
- IFF_DORMANT nil driver signals dormant
- IFF_DRV_OACTIVE nil tx hardware queue is full
- IFF_DRV_RUNNING nil resources allocated
- IFF_DYING nil interface is winding down
- IFF_DYNAMIC nil dialup device with changing addresses
- IFF_EBRIDGE nil ethernet bridging device
- IFF_ECHO nil echo sent packets
- IFF_ISATAP nil ISATAP interface (RFC4214)
- IFF_LINK0 nil per link layer defined bit 0
- IFF_LINK1 nil per link layer defined bit 1
- IFF_LINK2 nil per link layer defined bit 2
- IFF_LIVE_ADDR_CHANGE nil hardware address change when it's running
- IFF_LOOPBACK nil loopback net
- IFF_LOWER_UP nil driver signals L1 up
- IFF_MACVLAN_PORT nil device used as macvlan port
- IFF_MASTER nil master of a load balancer
- IFF_MASTER_8023AD nil bonding master, 802.3ad.
- IFF_MASTER_ALB nil bonding master, balance-alb.
- IFF_MASTER_ARPMON nil bonding master, ARP mon in use
- IFF_MONITOR nil user-requested monitor mode
- IFF_MULTICAST nil supports multicast
- IFF_NOARP nil no address resolution protocol
- IFF_NOTRAILERS nil avoid use of trailers
- IFF_OACTIVE nil transmission in progress
- IFF_OVS_DATAPATH nil device used as Open vSwitch datapath port
- IFF_POINTOPOINT nil point-to-point link
- IFF_PORTSEL nil can set media type
- IFF_PPROMISC nil user-requested promisc mode
- IFF_PROMISC nil receive all packets
- IFF_RENAMING nil interface is being renamed
- IFF_ROUTE nil routing entry installed
- IFF_RUNNING nil resources allocated
- IFF_SIMPLEX nil can't hear own transmissions
- IFF_SLAVE nil slave of a load balancer
- IFF_SLAVE_INACTIVE nil bonding slave not the curr. active
- IFF_SLAVE_NEEDARP nil need ARPs for validation
- IFF_SMART nil interface manages own routes
- IFF_STATICARP nil static ARP
- IFF_SUPP_NOFCS nil sending custom FCS
- IFF_TEAM_PORT nil used as team port
- IFF_TX_SKB_SHARING nil sharing skbs on transmit
- IFF_UNICAST_FLT nil unicast filtering
- IFF_UP nil interface is up
- IFF_WAN_HDLC nil WAN HDLC device
- IFF_XMIT_DST_RELEASE nil dev_hard_start_xmit() is allowed to release skb->dst
- IFF_VOLATILE nil volatile flags
- IFF_CANTCHANGE nil flags not changeable