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* sys/socket.h: add new SO_ socket options from linux v5.11•••see linux commit 7fd3253a7de6a317a0683f83739479fb880bffc8 net: Introduce preferred busy-polling linux commit 7c951cafc0cb2e575f1d58677b95ac387ac0a5bd net: Add SO_BUSY_POLL_BUDGET socket option Szabolcs Nagy2022-03-081-0/+2
* sys/socket.h: add SO_DETACH_REUSEPORT_BPF from linux v5.3•••see linux commit 99f3a064bc2e4bd5fe50218646c5be342f2ad18c bpf: net: Add SO_DETACH_REUSEPORT_BPF Szabolcs Nagy2019-12-301-0/+1
* move time64 socket options from arch bits to top-level sys/socket.h•••now that all 32-bit archs have 64-bit time types, the values for the time-related socket option macros can be treated as universal for 32-bit archs. the sys/socket.h mechanism for this predates arch/generic and is instead in the top-level header. x32, which does not use the new time64 values of the macros, already has its own overrides, so this commit does not affect it. Rich Felker2019-11-021-0/+11
* move msghdr and cmsghdr out of bits/socket.h•••these structures can now be defined generically in terms of endianness and long size. previously, the 32-bit archs all shared a common definition from the generic bits header, and each 64-bit arch had to repeat the 64-bit version, with endian conditionals if the arch had variants of each endianness. I would prefer getting rid of the preprocessor conditionals for padding and instead using unnamed bitfield members, like commit 9b2921bea1d5017832e1b45d1fd64220047a9802 did for struct timespec. however, at present sendmsg, recvmsg, and recvmmsg need access to the padding members by name to zero them. this could perhaps be cleaned up in the future. Rich Felker2019-11-021-0/+34
* make time-related socket options overridable by arch bits files•••SO_RCVTIMEO and SO_SNDTIMEO already were, but only in aggregate with SO_DEBUG and all of the other low/traditional options that varied per arch. SO_TIMESTAMP* are newly overridable. the two groups have to be done separately since mips64 and powerpc64 will override the former but not the latter. at some point this should be cleaned up to use bits headers more idiomatically. Rich Felker2019-11-021-6/+11
* add time64 symbol name redirects to public headers, under arch control•••a _REDIR_TIME64 macro is introduced, which the arch's alltypes.h is expected to define, to control redirection of symbol names for interfaces that involve time_t and derived types. this ensures that object files will only be linked to libc interfaces matching the ABI whose headers they were compiled against. along with time32 compat shims, which will be introduced separately, the redirection also makes it possible for a single libc (static or shared) to be used with object files produced with either the old (32-bit time_t) headers or the new ones after 64-bit time_t switchover takes place. mixing of such object files (or shared libraries) in the same program will also be possible, but must be done with care; ABI between libc and a consumer of the libc interfaces is guaranteed to match by the the symbol name redirection, but pairwise ABI between consumers of libc that define interfaces between each other in terms of time_t is not guaranteed to match. this change adds a dependency on an additional "GNU C" feature to the public headers for existing 32-bit archs, which is generally undesirable; however, the feature is one which glibc has depended on for a long time, and thus which any viable alternative compiler is going to need to provide. 64-bit archs are not affected, nor will future 32-bit archs be, regardless of whether they are "new" on the kernel side (e.g. riscv32) or just newly-added (e.g. a new sparc or xtensa port). the same applies to newly-added ABIs for existing machine-level archs. Rich Felker2019-10-281-0/+6
* sys/socket.h: add SO_BINDTOIFINDEX from linux v5.1•••SO_BINDTOIFINDEX behaves similar to SO_BINDTODEVICE, but takes a network interface index as argument, rather than the network interface name. see linux commit f5dd3d0c9638a9d9a02b5964c4ad636f06cf7e2c net: introduce SO_BINDTOIFINDEX sockopt Szabolcs Nagy2019-07-011-0/+1
* sys/socket.h: add SO_TXTIME from linux v4.19•••added in linux commit 80b14dee2bea128928537d61c333f24cb8cbb62f Szabolcs Nagy2019-03-131-0/+2
* add AF_XDP to sys/socket.h from linux v4.18•••new address family and related macros were added in linux commit 68e8b849b221b37a78a110a0307717d45e3593a0 Szabolcs Nagy2018-12-091-1/+4
* fix value of SO_PEERSEC on mips archs•••adapted from patch by Matthias Schiffer. Rich Felker2018-06-261-1/+1
* sys/socket.h: add MSG_ZEROCOPY from linux v4.14•••MSG_ZEROCOPY socket send flag avoids copy in the kernel new in linux commit 52267790ef52d7513879238ca9fac22c1733e0e3 SO_ZEROCOPY socket option enables MSG_ZEROCOPY if availale new in linux commit 76851d1212c11365362525e1e2c0a18c97478e6b Szabolcs Nagy2018-02-221-0/+2
* sys/socket.h: add SOL_TLS from linux v4.13•••socket option for kernel TLS support new in linux commit 3c4d7559159bfe1e3b94df3a657b2cda3a34e218 Szabolcs Nagy2018-02-221-0/+1
* sys/socket.h: add PF_SMC from linux v4.11•••add AF_SMC and PF_SMC for the IBM shared memory communication protocol. new in linux commit ac7138746e14137a451f8539614cdd349153e0c0 (linux socket.h is not in uapi so this update was missed earlier) Szabolcs Nagy2018-02-221-1/+3
* add SO_ getsockopt options from linux v4.13•••SCM_TIMESTAMPING_PKTINFO is new in aad9c8c470f2a8321a99eb053630ce0e199558d6 SO_PEERGROUPS is new in 28b5ba2aa0f55d80adb2624564ed2b170c19519e Szabolcs Nagy2017-11-051-0/+2
* add new SO_ socket options from linux v4.12•••SO_MEMINFO added in linux commit a2d133b1d465016d0d97560b11f54ba0ace56d3e SO_INCOMING_NAPI_ID added in 6d4339028b350efbf87c61e6d9e113e5373545c9 SO_COOKIE added in 5daab9db7b65df87da26fd8cfa695fb9546a1ddb Szabolcs Nagy2017-11-051-0/+3
* add SCM_TIMESTAMPING_OPT_STATS and related TCP_ enums from linux v4.10•••for tcp timestamp control messages, new in linux commit 1c885808e45601b2b6f68b30ac1d999e10b6f606 and export time measurements via tcp_info, added in linux commit efd90174167530c67a54273fd5d8369c87f9bd32 Szabolcs Nagy2017-11-051-0/+1
* add PF_QIPCRTR, AF_QIPCRTR from linux v4.7 to sys/socket.h•••macros for qualcom ip router protocol, new in linux commit bdabad3e363d825ddf9679dd431cca0b2c30f881 Szabolcs Nagy2016-08-301-1/+3
* make brace placement in public header struct definitions consistent•••placing the opening brace on the same line as the struct keyword/tag is the style I prefer and seems to be the prevailing practice in more recent additions. these changes were generated by the command: find include/ arch/*/bits -name '*.h' \ -exec sed -i '/^struct [^;{]*$/{N;s/\n/ /;}' {} + and subsequently checked by hand to ensure that the regex did not pick up any false positives. Rich Felker2016-07-031-10/+5
* avoid padding gaps in struct sockaddr_storage•••compilers are free not to copy, or in some cases to clobber, padding bytes in a structure. while it's an aliasing violation, and thus undefined behavior, to copy or manipulate other sockaddr types using sockaddr_storage, it seems likely that traditional code attempts to do so, and the original intent of the sockaddr_storage structure was probably to allow such usage. in the interest of avoiding silent and potentially dangerous breakage, ensure that there are no actual padding bytes in sockaddr_storage by moving and adjusting the size of the __ss_padding member so that it fits exactly. this change also removes a silent assumption that the alignment of long is equal to its size. Rich Felker2016-06-091-1/+1
* update sys/socket.h to linux v4.6•••kernel connection multiplexor macros AF_KCM, PF_KCM, SOL_KCM were added in linux commit ab7ac4eb9832e32a09f4e8042705484d2fb0aad3 MSG_BATCH sendmsg flag for performance optimization was added in linux commit f092276d85b82504e8a07498f4e9e0c51f06745c SOL_* macros are now synced with linux socket.h which is not a uapi header and glibc did not have the macros either, but that has changed http://sourceware.org/ml/libc-alpha/2016-05/msg00322.html Szabolcs Nagy2016-06-091-1/+19
* add SO_CNX_ADVICE to sys/socket.h, new in linux v4.6•••new socket option so application can give advice about routing path quality of connected udp sockets, added in linux commit a87cb3e48ee86d29868d3f59cfb9ce1a8fa63314 Szabolcs Nagy2016-06-091-0/+1
* fix undefined pointer arithmetic in CMSG_NXTHDR macro•••previously, the only way the stopping condition could be met with correct lengths in the headers invoked undefined behavior, adding sizeof(struct cmsghdr) beyond the end of the cmsg buffer. instead, compute and compare sizes rather than pointers. Rich Felker2016-05-221-3/+3
* add SO_ATTACH_REUSEPORT_[CE]BPF socket options from linux v4.5•••new socket options for setting classic or extended BPF program for sockets in a SO_REUSEPORT group. added in linux commit 538950a1b7527a0a52ccd9337e3fcd304f027f13 Szabolcs Nagy2016-03-191-1/+2
* add AF_MPLS (PF_MPLS) address family to socket.h•••new in linux 4.0 commit 0189197f441602acdca3f97750d392a895b778fd. Szabolcs Nagy2016-01-241-0/+2
* add MSG_FASTOPEN sendmsg/sendto flag to socket.h•••This was new in linux 3.5 in commit cf60af03ca4e71134206809ea892e49b92a88896, needed for tcp fastopen feature (sending data in TCP SYN packet). Szabolcs Nagy2016-01-241-0/+1
* socket.h: fix SO_* for mips•••Signed-off-by: Roman Yeryomin <roman@ubnt.com> Roman Yeryomin2015-07-211-3/+3
* add new socket options SO_INCOMING_CPU, SO_ATTACH_BPF, SO_DETACH_BPF•••these socket options are new in linux v3.19, introduced in commit 2c8c56e15df3d4c2af3d656e44feb18789f75837 and commit 89aa075832b0da4402acebd698d0411dcc82d03e with SO_INCOMING_CPU the cpu can be queried on which a socket is managed inside the kernel and optimize polling of large number of sockets accordingly. SO_ATTACH_BPF lets eBPF programs (created by the bpf syscall) to be attached to sockets. Szabolcs Nagy2015-02-091-0/+4
* implement sendmmsg and recvmmsg•••these are not pure syscall wrappers because they have to work around kernel API bugs on 64-bit archs. the workarounds could probably be made somewhat more efficient, but at the cost of more complexity. this may be revisited later. Rich Felker2014-06-191-0/+11
* add SO_BPF_EXTENSIONS socket option•••this was introduced to query BPF extension support with getsockopt in linux 3.14, commit ea02f9411d9faa3553ed09ce0ec9f00ceae9885e Szabolcs Nagy2014-05-301-0/+1
* sys/socket.h: add the SO_MAX_PACING_RATE SOL_SOCKET option•••introduced in linux v3.13, 62748f32d501f5d3712a7c372bbb92abc7c62bc7 Szabolcs Nagy2014-02-251-0/+1
* fix remaining known namespace violations for netinet/in.h•••the imr_, imsf_, ip6_, ip6m_, ipi_, ipi6_, SCM_, and SOL_ prefixes are not in the reserved namespace for this header. thus the constants and structures using them need to be protected under appropriate feature test macros. this also affects some headers which are permitted to include netinet/in.h, particularly netdb.h and arpa/inet.h. the SOL_ macros are moved to sys/socket.h where they are in the reserved namespace (SO*). they are still accessible via netinet/in.h since it includes sys/socket.h implicitly (which is permitted). the SCM_SRCRT macro is simply removed, since the definition used for it, IPV6_RXSRCRT is not defined anywhere. it could be re-added, this time in sys/socket.h, if the appropriate value can be determined; however, given that the erroneous definition was not caught, it is unlikely that any software actually attempts to use SCM_SRCRT. Rich Felker2014-01-081-0/+4
* move struct ucred under _GNU_SOURCE in sys/socket.h for clean posix namespaceSzabolcs Nagy2013-12-041-0/+2
* fix SHUT_WR typo in sys/socket.h and duplicate definitions of SHUT_*Szabolcs Nagy2013-12-041-5/+1
* fix typo in socket.h (wrong macro name)Szabolcs Nagy2013-10-181-1/+1
* sys/socket.h: add new SO_BUSY_POLL socket option•••low latency busy poll sockets are new in linux v3.11 Szabolcs Nagy2013-09-151-0/+1
* add protocol families PF_IB and PF_VSOCK to socket.h•••linux commit 8d36eb01da5d371feffa280e501377b5c450f5a5 (2013-05-29) added PF_IB for InfiniBand linux commit d021c344051af91f42c5ba9fdedc176740cbd238 (2013-02-06) added PF_VSOCK for VMware sockets Szabolcs Nagy2013-07-251-1/+5
* add SO_SELECT_ERR_QUEUE to socket.h•••introduced in linux-v3.10 commit 7d4c04fc170087119727119074e72445f2bb192b Szabolcs Nagy2013-07-241-0/+1
* add new socket options to sys/socket.h following linuxSzabolcs Nagy2013-04-011-2/+17
* fix some obscure header type size/alignment issuesRich Felker2013-03-041-4/+2
* add missing protocol families to sys/socket.h•••missing protocol families based on current linux headers: PF_RDS, PF_LLC, PF_CAN, PF_TIPC, PF_NFC Szabolcs Nagy2013-01-121-1/+11
* socket.h: add SO_(SND/RCV)BUFFORCE to generic blockrofl0r2012-12-191-0/+2
* disable SO_REUSEPORT in sys/socket.h•••although a number is reserved for it, this option is not implemented on Linux and does not work. defining it causes some applications to use it, and subsequently break due to its failure. Rich Felker2012-11-151-1/+1
* fix numerous mips abi constant definition mismatchesRich Felker2012-11-051-0/+7
* always expose accept4•••it will be in the next version of POSIX Rich Felker2012-09-291-4/+1
* add acct, accept4, setns, and dup3 syscalls (linux extensions)•••based on patch by Justin Cormack Rich Felker2012-09-081-0/+4
* remove all remaining redundant __restrict/__inline/_Noreturn defsRich Felker2012-09-081-5/+1
* use restrict everywhere it's required by c99 and/or posix 2008•••to deal with the fact that the public headers may be used with pre-c99 compilers, __restrict is used in place of restrict, and defined appropriately for any supported compiler. we also avoid the form [restrict] since older versions of gcc rejected it due to a bug in the original c99 standard, and instead use the form *restrict. Rich Felker2012-09-061-5/+11
* fix socket.h on mips•••why does mips have to be gratuitously incompatible in every possible imaginable way? Rich Felker2012-08-051-0/+3
* workaround another sendmsg kernel bug on 64-bit machines•••the kernel wrongly expects the cmsg length field to be size_t instead of socklen_t. in order to work around the issue, we have to impose a length limit and copy to a local buffer. the length limit should be more than sufficient for any real-world use; these headers are only used for passing file descriptors and permissions between processes over unix sockets. Rich Felker2012-07-121-7/+0
* cleanup more bits cruft (sysmacros and socket)Rich Felker2011-09-181-0/+196