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nss: Introduce <nss_module.h>
This provides the struct nss_module type, which combines the old struct service_library type with the known_function tree, by statically allocating space for all function pointers. struct nss_module is fairly large (536 bytes), but it will be shared across NSS databases. The old known_function handling had non-some per-function overhead (at least 32 bytes per looked-up function, but more for long function anmes), so overall, this is not too bad. Resolving all functions at load time simplifies locking, and the repeated lookups should be fast because the caches are hot at this point. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
This commit is contained in:
Florian Weimer
committed by
DJ Delorie
DJ Delorie
parent
7dc2f14bb3
commit
171689dac7
126
nss/function.def
126
nss/function.def
@ -1,4 +1,4 @@
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/* List of functions defined for static NSS in GNU C Library.
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/* List of all functions defined for the NSS in GNU C Library.
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Copyright (C) 1996-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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@ -16,63 +16,69 @@
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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/*
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This is a minimal config. Only services `files' and `dns' are supported.
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*/
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/* This list must be kept sorted!!! */
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/* aliases */
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DEFINE_ENT (files, alias)
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DEFINE_GETBY (files, alias, name)
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/* ethers */
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DEFINE_ENT (files, ether)
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/* group */
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DEFINE_ENT (files, gr)
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DEFINE_GET (files, grgid)
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DEFINE_GET (files, grnam)
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/* hosts */
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DEFINE_ENT (files, host)
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DEFINE_GETBY (files, host, addr)
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DEFINE_GETBY (files, host, name)
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DEFINE_GETBY (files, host, name2)
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DEFINE_GET (files, hostton)
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DEFINE_GET (files, ntohost)
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DEFINE_GETBY (dns, host, addr)
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DEFINE_GETBY (dns, host, name)
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DEFINE_GETBY (dns, host, name2)
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/* netgroup */
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DEFINE_ENT (files, netgr)
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/* networks */
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DEFINE_ENT (files, net)
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DEFINE_GETBY (files, net, name)
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DEFINE_GETBY (files, net, addr)
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DEFINE_GETBY (dns, net, name)
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DEFINE_GETBY (dns, net, addr)
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/* protocols */
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DEFINE_ENT (files, proto)
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DEFINE_GETBY (files, proto, name)
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DEFINE_GETBY (files, proto, number)
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/* passwd */
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DEFINE_ENT (files, pw)
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DEFINE_GET (files, pwnam)
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DEFINE_GET (files, pwuid)
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/* rpc */
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DEFINE_ENT (files, rpc)
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DEFINE_GETBY (files, rpc, name)
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DEFINE_GETBY (files, rpc, number)
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/* services */
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DEFINE_ENT (files, serv)
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DEFINE_GETBY (files, serv, name)
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DEFINE_GETBY (files, serv, port)
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/* shadow */
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DEFINE_ENT (files, sp)
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DEFINE_GET (files, spnam)
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DEFINE_NSS_FUNCTION (endaliasent)
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DEFINE_NSS_FUNCTION (endetherent)
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DEFINE_NSS_FUNCTION (endgrent)
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DEFINE_NSS_FUNCTION (endhostent)
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DEFINE_NSS_FUNCTION (endnetent)
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DEFINE_NSS_FUNCTION (endnetgrent)
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DEFINE_NSS_FUNCTION (endprotoent)
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DEFINE_NSS_FUNCTION (endpwent)
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DEFINE_NSS_FUNCTION (endrpcent)
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DEFINE_NSS_FUNCTION (endservent)
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DEFINE_NSS_FUNCTION (endsgent)
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DEFINE_NSS_FUNCTION (endspent)
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DEFINE_NSS_FUNCTION (getaliasbyname_r)
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DEFINE_NSS_FUNCTION (getaliasent_r)
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DEFINE_NSS_FUNCTION (getcanonname_r)
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DEFINE_NSS_FUNCTION (getetherent_r)
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DEFINE_NSS_FUNCTION (getgrent_r)
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DEFINE_NSS_FUNCTION (getgrgid_r)
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DEFINE_NSS_FUNCTION (getgrnam_r)
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DEFINE_NSS_FUNCTION (gethostbyaddr2_r)
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DEFINE_NSS_FUNCTION (gethostbyaddr_r)
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DEFINE_NSS_FUNCTION (gethostbyname2_r)
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DEFINE_NSS_FUNCTION (gethostbyname3_r)
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DEFINE_NSS_FUNCTION (gethostbyname4_r)
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DEFINE_NSS_FUNCTION (gethostbyname_r)
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DEFINE_NSS_FUNCTION (gethostent_r)
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DEFINE_NSS_FUNCTION (gethostton_r)
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DEFINE_NSS_FUNCTION (getnetbyaddr_r)
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DEFINE_NSS_FUNCTION (getnetbyname_r)
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DEFINE_NSS_FUNCTION (getnetent_r)
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DEFINE_NSS_FUNCTION (getnetgrent_r)
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DEFINE_NSS_FUNCTION (getntohost_r)
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DEFINE_NSS_FUNCTION (getprotobyname_r)
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DEFINE_NSS_FUNCTION (getprotobynumber_r)
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DEFINE_NSS_FUNCTION (getprotoent_r)
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DEFINE_NSS_FUNCTION (getpublickey)
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DEFINE_NSS_FUNCTION (getpwent_r)
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DEFINE_NSS_FUNCTION (getpwnam_r)
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DEFINE_NSS_FUNCTION (getpwuid_r)
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DEFINE_NSS_FUNCTION (getrpcbyname_r)
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DEFINE_NSS_FUNCTION (getrpcbynumber_r)
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DEFINE_NSS_FUNCTION (getrpcent_r)
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DEFINE_NSS_FUNCTION (getsecretkey)
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DEFINE_NSS_FUNCTION (getservbyname_r)
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DEFINE_NSS_FUNCTION (getservbyport_r)
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DEFINE_NSS_FUNCTION (getservent_r)
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DEFINE_NSS_FUNCTION (getsgent_r)
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DEFINE_NSS_FUNCTION (getsgnam_r)
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DEFINE_NSS_FUNCTION (getspent_r)
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DEFINE_NSS_FUNCTION (getspnam_r)
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DEFINE_NSS_FUNCTION (initgroups_dyn)
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DEFINE_NSS_FUNCTION (netname2user)
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DEFINE_NSS_FUNCTION (setaliasent)
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DEFINE_NSS_FUNCTION (setetherent)
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DEFINE_NSS_FUNCTION (setgrent)
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DEFINE_NSS_FUNCTION (sethostent)
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DEFINE_NSS_FUNCTION (setnetent)
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DEFINE_NSS_FUNCTION (setnetgrent)
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DEFINE_NSS_FUNCTION (setprotoent)
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DEFINE_NSS_FUNCTION (setpwent)
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DEFINE_NSS_FUNCTION (setrpcent)
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DEFINE_NSS_FUNCTION (setservent)
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DEFINE_NSS_FUNCTION (setsgent)
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DEFINE_NSS_FUNCTION (setspent)
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