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resolv: Remove support for RES_USE_INET6 and the inet6 option
This functionality was deprecated in glibc 2.25. This commit only includes the core changes to remove the functionality. It does not remove the RES_USE_INET6 handling in the individual NSS service modules and the res_use_inet6 function. These changes will happen in future commits.
This commit is contained in:
Florian Weimer
parent
94e358f6d4
commit
3f8b44be0a
37
ChangeLog
37
ChangeLog
@ -1,3 +1,40 @@
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2019-04-08 Florian Weimer <fweimer@redhat.com>
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resolv: Remove support for RES_USE_INET6 and the inet6 option.
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* nscd/aicache.c (addhstaiX): Do not disable RES_USE_INET6.
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* nscd/nscd_gehst_r.c (__nscd_gethostbyname_r): Always use
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GETHOSTBYNAME.
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* resolv/Makefile (tests): Remove tst-res_use_inet6.
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(tests-internal): Update justification for tst-resolv-res_init,
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tst-resolv-res_init-thread.
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(tst-res_use_inet6): Remove target.
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(CFLAGS-tst-res_use_inet6.c): Do not set variable.
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* resolv/res_debug.c (p_option): Remove "inet6" support.
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* resolv/res_init.c (res_setoptions): Likewise.
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* resolv/res_use_inet6.h: Remove file.
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* resolv/resolv-internal.h (DEPRECATED_RES_USE_INET6): Remove
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definition.
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(res_use_inet6): Always return false.
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* resolv/resolv.h (RES_USE_INET6): Remove definition.
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* resolv/resolv_context.h: Adjust file comment.
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(struct resolv_context): Update comment on __next field.
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(__resolv_context_put): Update comment.
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* resolv/tst-res_use_inet6.c: Remove file.
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* resolv/tst-resolv-res_init-skeleton.c (print_resp): Remove
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"inet6" support.
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(test_cases): Adjust test case.
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* resolv/tst-resolv-threads.c (byname_inet6) Remove function.
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(thread_byname2_af_inet6): Use old byname_inet6 code.
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(thread_byname_inet6, thread_byname2_af_inet6): Remove functions.
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(gai): Remove do_inet6 argument.
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(thread_gai_inet, thread_gai_inet6, thread_gai_unspec): Adjust.
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(thread_gai_inet_inet6, thread_gai_inet6_inet6)
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(thread_gai_unspec_inet6): Remove functions.
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(do_test): Adjust thread_funcs.
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* sysdeps/posix/getaddrinfo.c (gethosts): Do not restore
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RES_USE_INET6 flag.
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(gaih_inet): Do not disable RES_USE_INET6 flag.
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2019-04-05 Anton Youdkevitch <anton.youdkevitch@bell-sw.com>
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* sysdeps/aarch64/multiarch/memcpy_thunderx2.S: Cleanup branching
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3
NEWS
3
NEWS
@ -35,6 +35,9 @@ Deprecated and removed features, and other changes affecting compatibility:
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* The obsolete and never-implemented XSI STREAMS header files <stropts.h>
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and <sys/stropts.h> have been removed.
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* Support for the "inet6" option in /etc/resolv.conf and the RES_USE_INET6
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resolver flag (deprecated in glibc 2.25) have been removed.
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Changes to build and runtime requirements:
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* GCC 6.2 or later is required to build the GNU C Library.
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@ -27,7 +27,6 @@
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#include <sys/mman.h>
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#include <resolv/resolv-internal.h>
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#include <resolv/resolv_context.h>
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#include <resolv/res_use_inet6.h>
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#include <scratch_buffer.h>
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#include "dbg_log.h"
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@ -100,12 +99,8 @@ addhstaiX (struct database_dyn *db, int fd, request_header *req,
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no_more = 0;
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nip = hosts_database;
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/* Initialize configurations. If we are looking for both IPv4 and
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IPv6 address we don't want the lookup functions to automatically
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promote IPv4 addresses to IPv6 addresses. Therefore, use the
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_no_inet6 variant. */
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/* Initialize configurations. */
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struct resolv_context *ctx = __resolv_context_get ();
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bool enable_inet6 = __resolv_context_disable_inet6 (ctx);
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if (ctx == NULL)
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no_more = 1;
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@ -513,7 +508,6 @@ next_nip:
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}
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out:
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__resolv_context_enable_inet6 (ctx, enable_inet6);
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__resolv_context_put (ctx);
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if (dataset != NULL && !alloca_used)
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@ -40,11 +40,7 @@ __nscd_gethostbyname_r (const char *name, struct hostent *resultbuf,
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char *buffer, size_t buflen, struct hostent **result,
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int *h_errnop)
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{
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request_type reqtype;
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reqtype = res_use_inet6 () ? GETHOSTBYNAMEv6 : GETHOSTBYNAME;
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return nscd_gethst_r (name, strlen (name) + 1, reqtype, resultbuf,
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return nscd_gethst_r (name, strlen (name) + 1, GETHOSTBYNAME, resultbuf,
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buffer, buflen, result, h_errnop);
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}
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@ -52,7 +52,6 @@ tests += \
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tst-ns_name_pton \
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tst-res_hconf_reorder \
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tst-res_hnok \
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tst-res_use_inet6 \
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tst-resolv-basic \
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tst-resolv-binary \
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tst-resolv-edns \
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@ -70,13 +69,10 @@ tests += \
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tst-resolv-ai_idn-nolibidn2 \
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tst-resolv-canonname \
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# uses DEPRECATED_RES_USE_INET6 from <resolv-internal.h>.
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# Needs resolv_context.
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tests-internal += \
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tst-resolv-res_init \
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tst-resolv-res_init-thread \
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# Needs resolv_context.
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tests-internal += \
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tst-resolv-res_ninit \
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tst-resolv-threads \
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@ -175,7 +171,6 @@ $(objpfx)mtrace-tst-resolv-res_ninit.out: $(objpfx)tst-resolv-res_ninit.out
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$(objpfx)tst-bug18665-tcp: $(objpfx)libresolv.so $(shared-thread-library)
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$(objpfx)tst-bug18665: $(objpfx)libresolv.so $(shared-thread-library)
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$(objpfx)tst-res_use_inet6: $(objpfx)libresolv.so $(shared-thread-library)
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$(objpfx)tst-resolv-ai_idn: \
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$(libdl) $(objpfx)libresolv.so $(shared-thread-library)
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$(objpfx)tst-resolv-ai_idn-latin1: \
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@ -211,7 +206,3 @@ $(objpfx)tst-ns_name_compress: $(objpfx)libresolv.so
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$(objpfx)tst-ns_name_pton: $(objpfx)libresolv.so
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$(objpfx)tst-res_hnok: $(objpfx)libresolv.so
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$(objpfx)tst-p_secstodate: $(objpfx)libresolv.so
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# This test case uses the deprecated RES_USE_INET6 resolver option.
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CFLAGS-tst-res_use_inet6.c += -Wno-error
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@ -607,7 +607,6 @@ p_option(u_long option) {
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case RES_INSECURE1: return "insecure1";
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case RES_INSECURE2: return "insecure2";
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case RES_NOALIASES: return "noaliases";
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case DEPRECATED_RES_USE_INET6: return "inet6";
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case RES_ROTATE: return "rotate";
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case RES_USE_EDNS0: return "edns0";
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case RES_SNGLKUP: return "single-request";
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@ -672,7 +672,6 @@ res_setoptions (struct resolv_conf_parser *parser, const char *options)
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unsigned long int flag;
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} options[] = {
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#define STRnLEN(str) str, sizeof (str) - 1
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{ STRnLEN ("inet6"), 0, DEPRECATED_RES_USE_INET6 },
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{ STRnLEN ("rotate"), 0, RES_ROTATE },
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{ STRnLEN ("edns0"), 0, RES_USE_EDNS0 },
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{ STRnLEN ("single-request-reopen"), 0, RES_SNGLKUPREOP },
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@ -1,49 +0,0 @@
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/* Support functions for handling RES_USE_INET6 in getaddrinfo/nscd.
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Copyright (C) 2017-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _RES_USE_INET6_H
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#define _RES_USE_INET6_H
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#include <resolv/resolv_context.h>
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#include <resolv/resolv-internal.h>
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/* Ensure that RES_USE_INET6 is disabled in *CTX. Return true if
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__resolv_context_enable_inet6 below should enable RES_USE_INET6
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again. */
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static inline bool
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__resolv_context_disable_inet6 (struct resolv_context *ctx)
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{
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if (ctx != NULL && ctx->resp->options & DEPRECATED_RES_USE_INET6)
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{
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ctx->resp->options &= ~DEPRECATED_RES_USE_INET6;
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return true;
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}
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else
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return false;
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}
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/* If ENABLE, re-enable RES_USE_INET6 in *CTX. To be paired with
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__resolv_context_disable_inet6. */
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static inline void
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__resolv_context_enable_inet6 (struct resolv_context *ctx, bool enable)
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{
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if (ctx != NULL && enable)
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ctx->resp->options |= DEPRECATED_RES_USE_INET6;
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}
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#endif
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@ -27,15 +27,12 @@
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#define RES_F_CONN 0x00000002 /* Socket is connected. */
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#define RES_F_EDNS0ERR 0x00000004 /* EDNS0 caused errors. */
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/* Internal version of RES_USE_INET6 which does not trigger a
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deprecation warning. */
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#define DEPRECATED_RES_USE_INET6 0x00002000
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/* Legacy function. This needs to be removed once all NSS modules
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have been adjusted. */
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static inline bool
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res_use_inet6 (void)
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{
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return _res.options & DEPRECATED_RES_USE_INET6;
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return false;
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}
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enum
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@ -118,8 +118,6 @@ struct res_sym {
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#define RES_INSECURE1 0x00000400 /* type 1 security disabled */
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#define RES_INSECURE2 0x00000800 /* type 2 security disabled */
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#define RES_NOALIASES 0x00001000 /* shuts off HOSTALIASES feature */
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#define RES_USE_INET6 \
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__glibc_macro_warning ("RES_USE_INET6 is deprecated") 0x00002000
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#define RES_ROTATE 0x00004000 /* rotate ns list after each query */
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#define RES_NOCHECKNAME \
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__glibc_macro_warning ("RES_NOCHECKNAME is deprecated") 0x00008000
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@ -26,9 +26,7 @@
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allocating a new context. This prevents unexpected reloading of
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the resolver configuration. Care is taken to keep the context in
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sync with the thread-local _res object. (This does not happen with
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__resolv_context_get_override, and __resolv_context_get_no_inet6 may
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also interpose another context object if RES_USE_INET6 needs to be
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disabled.)
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__resolv_context_get_override.)
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In contrast to struct __res_state, struct resolv_context is not
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affected by ABI compatibility concerns.
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@ -62,8 +60,8 @@ struct resolv_context
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size_t __refcount; /* Count of reusages by the get functions. */
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bool __from_res; /* True if created from _res. */
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/* If RES_USE_INET6 was disabled at this level, this field points to
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the previous context. */
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/* Single-linked list of resolver contexts. Used for memory
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deallocation on thread cancellation. */
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struct resolv_context *__next;
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};
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@ -75,8 +73,7 @@ struct resolv_context *__resolv_context_get (void)
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libc_hidden_proto (__resolv_context_get)
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/* Deallocate the temporary resolver context. Converse of
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__resolv_context_get. Restore the RES_USE_INET6 flag if necessary.
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Do nothing if CTX is NULL. */
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__resolv_context_get. Do nothing if CTX is NULL. */
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void __resolv_context_put (struct resolv_context *ctx);
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libc_hidden_proto (__resolv_context_put)
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@ -1,509 +0,0 @@
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/* Basic functionality tests for inet6 option processing.
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Copyright (C) 2016-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <ctype.h>
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#include <netdb.h>
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#include <resolv.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <support/check.h>
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#include <support/check_nss.h>
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#include <support/resolv_test.h>
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#include <support/support.h>
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#include <support/xthread.h>
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/* Handle IPv4 reverse lookup responses. Product a PTR record
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A-B-C-D.v4.example. */
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static void
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response_ptr_v4 (const struct resolv_response_context *ctx,
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struct resolv_response_builder *b,
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const char *qname, uint16_t qclass, uint16_t qtype)
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{
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int bytes[4];
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int offset = -1;
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TEST_VERIFY (sscanf (qname, "%d.%d.%d.%d.in-addr.arpa%n",
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bytes + 0, bytes + 1, bytes + 2, bytes + 3,
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&offset) == 4);
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TEST_VERIFY (offset == strlen (qname));
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resolv_response_init (b, (struct resolv_response_flags) {});
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resolv_response_add_question (b, qname, qclass, qtype);
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resolv_response_section (b, ns_s_an);
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resolv_response_open_record (b, qname, qclass, T_PTR, 0);
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char *name = xasprintf ("%d-%d-%d-%d.v4.example",
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bytes[3], bytes[2], bytes[1], bytes[0]);
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resolv_response_add_name (b, name);
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free (name);
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resolv_response_close_record (b);
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}
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/* Handle IPv6 reverse lookup responses. Produce a PTR record
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<32 hex digits>.v6.example. */
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static void
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response_ptr_v6 (const struct resolv_response_context *ctx,
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struct resolv_response_builder *b,
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const char *qname, uint16_t qclass, uint16_t qtype)
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{
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TEST_VERIFY_EXIT (strlen (qname) > 64);
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char bytes[33];
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for (int i = 0; i < 64; ++i)
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if ((i % 2) == 0)
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{
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TEST_VERIFY (isxdigit ((unsigned char) qname[i]));
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bytes[31 - i / 2] = qname[i];
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}
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else
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TEST_VERIFY_EXIT (qname[i] == '.');
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bytes[32] = '\0';
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resolv_response_init (b, (struct resolv_response_flags) {});
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resolv_response_add_question (b, qname, qclass, qtype);
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resolv_response_section (b, ns_s_an);
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resolv_response_open_record (b, qname, qclass, T_PTR, 0);
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char *name = xasprintf ("%s.v6.example", bytes);
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resolv_response_add_name (b, name);
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free (name);
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resolv_response_close_record (b);
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}
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/* Produce a response based on QNAME: Certain characters in the first
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label of QNAME trigger the inclusion of resource records:
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'a' A record (IPv4 address)
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'q' AAAA record (quad A record, IPv6 address)
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'p' PTR record
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'm' record type must match QTYPE (no additional records)
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'6' stop flag processing if QTYPE == AAAA
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For 'a' and 'q', QTYPE is ignored for record type selection if 'm'
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is not specified.
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in-addr.arpa and ip6.arpa queries are handled separately in
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response_ptr_v4 and response_ptr_v6. */
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static void
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response (const struct resolv_response_context *ctx,
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struct resolv_response_builder *b,
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const char *qname, uint16_t qclass, uint16_t qtype)
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{
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if (strstr (qname, ".in-addr.arpa") != NULL)
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return response_ptr_v4 (ctx, b, qname, qclass, qtype);
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else if (strstr (qname, ".ip6.arpa") != NULL)
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return response_ptr_v6 (ctx, b, qname, qclass, qtype);
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bool include_a = false;
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bool include_aaaa = false;
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bool include_match = false;
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bool include_ptr = false;
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for (const char *p = qname; *p != '.' && *p != '\0'; ++p)
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{
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if (*p == 'a')
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include_a = true;
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else if (*p == 'q')
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include_aaaa = true;
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else if (*p == 'm')
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include_match = true;
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else if (*p == 'p')
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include_ptr = true;
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else if (*p == '6' && qtype == T_AAAA)
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break;
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}
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if (include_match)
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{
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if (qtype == T_A)
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||||
include_aaaa = false;
|
||||
else if (qtype == T_AAAA)
|
||||
include_a = false;
|
||||
}
|
||||
|
||||
resolv_response_init (b, (struct resolv_response_flags) {});
|
||||
resolv_response_add_question (b, qname, qclass, qtype);
|
||||
resolv_response_section (b, ns_s_an);
|
||||
if (include_a)
|
||||
{
|
||||
char ipv4[4] = {192, 0, 2, 17};
|
||||
resolv_response_open_record (b, qname, qclass, T_A, 0);
|
||||
resolv_response_add_data (b, &ipv4, sizeof (ipv4));
|
||||
resolv_response_close_record (b);
|
||||
}
|
||||
if (include_aaaa)
|
||||
{
|
||||
char ipv6[16]
|
||||
= {0x20, 0x01, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
|
||||
resolv_response_open_record (b, qname, qclass, T_AAAA, 0);
|
||||
resolv_response_add_data (b, &ipv6, sizeof (ipv6));
|
||||
resolv_response_close_record (b);
|
||||
}
|
||||
if (include_ptr)
|
||||
{
|
||||
resolv_response_open_record (b, qname, qclass, T_PTR, 0);
|
||||
resolv_response_add_name (b, "ptr-target.example");
|
||||
resolv_response_close_record (b);
|
||||
}
|
||||
}
|
||||
|
||||
/* Test that getaddrinfo is not influenced by RES_USE_INET6. */
|
||||
static void
|
||||
test_gai (void)
|
||||
{
|
||||
{
|
||||
struct addrinfo hints =
|
||||
{
|
||||
.ai_family = AF_UNSPEC,
|
||||
.ai_socktype = SOCK_STREAM,
|
||||
.ai_protocol = IPPROTO_TCP,
|
||||
};
|
||||
struct addrinfo *ai;
|
||||
int ret = getaddrinfo ("qam.example", "80", &hints, &ai);
|
||||
check_addrinfo ("getaddrinfo AF_UNSPEC qam.example", ai, ret,
|
||||
"address: STREAM/TCP 192.0.2.17 80\n"
|
||||
"address: STREAM/TCP 2001:db8::1 80\n");
|
||||
if (ret == 0)
|
||||
freeaddrinfo (ai);
|
||||
ret = getaddrinfo ("am.example", "80", &hints, &ai);
|
||||
check_addrinfo ("getaddrinfo AF_UNSPEC am.example", ai, ret,
|
||||
"address: STREAM/TCP 192.0.2.17 80\n");
|
||||
if (ret == 0)
|
||||
freeaddrinfo (ai);
|
||||
ret = getaddrinfo ("qa.example", "80", &hints, &ai);
|
||||
/* Combined A/AAAA responses currently result in address
|
||||
duplication. */
|
||||
check_addrinfo ("getaddrinfo AF_UNSPEC qa.example", ai, ret,
|
||||
"address: STREAM/TCP 192.0.2.17 80\n"
|
||||
"address: STREAM/TCP 192.0.2.17 80\n"
|
||||
"address: STREAM/TCP 2001:db8::1 80\n"
|
||||
"address: STREAM/TCP 2001:db8::1 80\n");
|
||||
if (ret == 0)
|
||||
freeaddrinfo (ai);
|
||||
}
|
||||
{
|
||||
struct addrinfo hints =
|
||||
{
|
||||
.ai_family = AF_INET,
|
||||
.ai_socktype = SOCK_STREAM,
|
||||
.ai_protocol = IPPROTO_TCP,
|
||||
};
|
||||
struct addrinfo *ai;
|
||||
int ret = getaddrinfo ("qam.example", "80", &hints, &ai);
|
||||
check_addrinfo ("getaddrinfo AF_INET qam.example", ai, ret,
|
||||
"address: STREAM/TCP 192.0.2.17 80\n");
|
||||
if (ret == 0)
|
||||
freeaddrinfo (ai);
|
||||
ret = getaddrinfo ("am.example", "80", &hints, &ai);
|
||||
check_addrinfo ("getaddrinfo AF_INET am.example", ai, ret,
|
||||
"address: STREAM/TCP 192.0.2.17 80\n");
|
||||
if (ret == 0)
|
||||
freeaddrinfo (ai);
|
||||
ret = getaddrinfo ("qa.example", "80", &hints, &ai);
|
||||
check_addrinfo ("getaddrinfo AF_INET qa.example", ai, ret,
|
||||
"address: STREAM/TCP 192.0.2.17 80\n");
|
||||
if (ret == 0)
|
||||
freeaddrinfo (ai);
|
||||
}
|
||||
{
|
||||
struct addrinfo hints =
|
||||
{
|
||||
.ai_family = AF_INET6,
|
||||
.ai_socktype = SOCK_STREAM,
|
||||
.ai_protocol = IPPROTO_TCP,
|
||||
};
|
||||
struct addrinfo *ai;
|
||||
int ret = getaddrinfo ("qa.example", "80", &hints, &ai);
|
||||
check_addrinfo ("getaddrinfo (AF_INET6)", ai, ret,
|
||||
"address: STREAM/TCP 2001:db8::1 80\n");
|
||||
if (ret == 0)
|
||||
freeaddrinfo (ai);
|
||||
ret = getaddrinfo ("am.example", "80", &hints, &ai);
|
||||
check_addrinfo ("getaddrinfo AF_INET6 am.example", ai, ret,
|
||||
"error: No address associated with hostname\n");
|
||||
if (ret == 0)
|
||||
freeaddrinfo (ai);
|
||||
ret = getaddrinfo ("qam.example", "80", &hints, &ai);
|
||||
check_addrinfo ("getaddrinfo AF_INET6 qam.example", ai, ret,
|
||||
"address: STREAM/TCP 2001:db8::1 80\n");
|
||||
if (ret == 0)
|
||||
freeaddrinfo (ai);
|
||||
}
|
||||
}
|
||||
|
||||
/* Test gethostbyaddr and getnameinfo. The results are independent of
|
||||
RES_USE_INET6. */
|
||||
static void
|
||||
test_reverse (void)
|
||||
{
|
||||
{
|
||||
char ipv4[4] = { 192, 0, 2, 17 };
|
||||
check_hostent ("gethostbyaddr AF_INET",
|
||||
gethostbyaddr (ipv4, sizeof (ipv4), AF_INET),
|
||||
"name: 192-0-2-17.v4.example\n"
|
||||
"address: 192.0.2.17\n");
|
||||
}
|
||||
{
|
||||
char ipv6[16]
|
||||
= {0x20, 0x01, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
|
||||
check_hostent ("gethostbyaddr AF_INET",
|
||||
gethostbyaddr (ipv6, sizeof (ipv6), AF_INET6),
|
||||
"name: 20010db8000000000000000000000001.v6.example\n"
|
||||
"address: 2001:db8::1\n");
|
||||
}
|
||||
|
||||
{
|
||||
struct sockaddr_in addr =
|
||||
{
|
||||
.sin_family = AF_INET,
|
||||
.sin_addr = { .s_addr = htonl (0xc0000211) },
|
||||
.sin_port = htons (80)
|
||||
};
|
||||
char host[NI_MAXHOST];
|
||||
char service[NI_MAXSERV];
|
||||
int ret = getnameinfo ((struct sockaddr *) &addr, sizeof (addr),
|
||||
host, sizeof (host), service, sizeof (service),
|
||||
NI_NUMERICSERV);
|
||||
TEST_VERIFY (ret == 0);
|
||||
TEST_VERIFY (strcmp (host, "192-0-2-17.v4.example") == 0);
|
||||
TEST_VERIFY (strcmp (service, "80") == 0);
|
||||
}
|
||||
{
|
||||
char ipv6[16]
|
||||
= {0x20, 0x01, 0xd, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
|
||||
struct sockaddr_in6 addr =
|
||||
{
|
||||
.sin6_family = AF_INET6,
|
||||
.sin6_port = htons (80),
|
||||
};
|
||||
TEST_VERIFY (sizeof (ipv6) == sizeof (addr.sin6_addr));
|
||||
memcpy (&addr.sin6_addr, ipv6, sizeof (addr.sin6_addr));
|
||||
char host[NI_MAXHOST];
|
||||
char service[NI_MAXSERV];
|
||||
int ret = getnameinfo ((struct sockaddr *) &addr, sizeof (addr),
|
||||
host, sizeof (host), service, sizeof (service),
|
||||
NI_NUMERICSERV);
|
||||
TEST_VERIFY (ret == 0);
|
||||
TEST_VERIFY
|
||||
(strcmp (host, "20010db8000000000000000000000001.v6.example") == 0);
|
||||
TEST_VERIFY (strcmp (service, "80") == 0);
|
||||
}
|
||||
}
|
||||
|
||||
/* Test that gethostbyname2 is mostly not influenced by
|
||||
RES_USE_INET6. */
|
||||
static void
|
||||
test_get2_any (void)
|
||||
{
|
||||
check_hostent ("gethostbyname2 AF_INET am.example",
|
||||
gethostbyname2 ("am.example", AF_INET),
|
||||
"name: am.example\n"
|
||||
"address: 192.0.2.17\n");
|
||||
check_hostent ("gethostbyname2 AF_INET a.example",
|
||||
gethostbyname2 ("a.example", AF_INET),
|
||||
"name: a.example\n"
|
||||
"address: 192.0.2.17\n");
|
||||
check_hostent ("gethostbyname2 AF_INET qm.example",
|
||||
gethostbyname2 ("qm.example", AF_INET),
|
||||
"error: NO_ADDRESS\n");
|
||||
check_hostent ("gethostbyname2 AF_INET q.example",
|
||||
gethostbyname2 ("q.example", AF_INET),
|
||||
"error: NO_RECOVERY\n");
|
||||
check_hostent ("gethostbyname2 AF_INET qam.example",
|
||||
gethostbyname2 ("qam.example", AF_INET),
|
||||
"name: qam.example\n"
|
||||
"address: 192.0.2.17\n");
|
||||
check_hostent ("gethostbyname2 AF_INET qa.example",
|
||||
gethostbyname2 ("qa.example", AF_INET),
|
||||
"name: qa.example\n"
|
||||
"address: 192.0.2.17\n");
|
||||
|
||||
check_hostent ("gethostbyname2 AF_INET6 qm.example",
|
||||
gethostbyname2 ("qm.example", AF_INET6),
|
||||
"name: qm.example\n"
|
||||
"address: 2001:db8::1\n");
|
||||
check_hostent ("gethostbyname2 AF_INET6 q.example",
|
||||
gethostbyname2 ("q.example", AF_INET6),
|
||||
"name: q.example\n"
|
||||
"address: 2001:db8::1\n");
|
||||
check_hostent ("gethostbyname2 AF_INET6 qam.example",
|
||||
gethostbyname2 ("qam.example", AF_INET6),
|
||||
"name: qam.example\n"
|
||||
"address: 2001:db8::1\n");
|
||||
check_hostent ("gethostbyname2 AF_INET6 qa.example",
|
||||
gethostbyname2 ("qa.example", AF_INET6),
|
||||
"name: qa.example\n"
|
||||
"address: 2001:db8::1\n");
|
||||
/* Additional AF_INET6 tests depend on RES_USE_INET6; see below. */
|
||||
|
||||
test_reverse ();
|
||||
}
|
||||
|
||||
/* gethostbyname2 tests with RES_USE_INET6 disabled. */
|
||||
static void
|
||||
test_get2_no_inet6 (void)
|
||||
{
|
||||
test_get2_any ();
|
||||
|
||||
check_hostent ("gethostbyname2 AF_INET6 am.example",
|
||||
gethostbyname2 ("am.example", AF_INET6),
|
||||
"error: NO_ADDRESS\n");
|
||||
check_hostent ("gethostbyname2 AF_INET6 a.example",
|
||||
gethostbyname2 ("a.example", AF_INET6),
|
||||
"error: NO_RECOVERY\n");
|
||||
}
|
||||
|
||||
/* gethostbyname2 tests with RES_USE_INET6 enabled. */
|
||||
static void
|
||||
test_get2_inet6 (void)
|
||||
{
|
||||
test_get2_any ();
|
||||
|
||||
check_hostent ("gethostbyname2 AF_INET6 am.example",
|
||||
gethostbyname2 ("am.example", AF_INET6),
|
||||
"name: am.example\n"
|
||||
"address: ::ffff:192.0.2.17\n");
|
||||
check_hostent ("gethostbyname2 AF_INET6 a.example",
|
||||
gethostbyname2 ("a.example", AF_INET6),
|
||||
"error: NO_RECOVERY\n");
|
||||
}
|
||||
|
||||
/* Collection of tests which assume no RES_USE_INET6 flag. */
|
||||
static void
|
||||
test_no_inet6 (void)
|
||||
{
|
||||
check_hostent ("gethostbyname (\"a.example\")",
|
||||
gethostbyname ("a.example"),
|
||||
"name: a.example\n"
|
||||
"address: 192.0.2.17\n");
|
||||
check_hostent ("gethostbyname (\"qa.example\")",
|
||||
gethostbyname ("qa.example"),
|
||||
"name: qa.example\n"
|
||||
"address: 192.0.2.17\n");
|
||||
check_hostent ("gethostbyname (\"am.example\")",
|
||||
gethostbyname ("am.example"),
|
||||
"name: am.example\n"
|
||||
"address: 192.0.2.17\n");
|
||||
check_hostent ("gethostbyname (\"amp.example\")",
|
||||
gethostbyname ("amp.example"),
|
||||
"name: amp.example\n"
|
||||
"address: 192.0.2.17\n");
|
||||
check_hostent ("gethostbyname (\"qam.example\")",
|
||||
gethostbyname ("qam.example"),
|
||||
"name: qam.example\n"
|
||||
"address: 192.0.2.17\n");
|
||||
check_hostent ("gethostbyname (\"q.example\")",
|
||||
gethostbyname ("q.example"),
|
||||
"error: NO_RECOVERY\n");
|
||||
check_hostent ("gethostbyname (\"qm.example\")",
|
||||
gethostbyname ("qm.example"),
|
||||
"error: NO_ADDRESS\n");
|
||||
test_get2_no_inet6 ();
|
||||
test_get2_no_inet6 ();
|
||||
test_gai ();
|
||||
test_get2_no_inet6 ();
|
||||
test_get2_no_inet6 ();
|
||||
}
|
||||
|
||||
static void *
|
||||
threadfunc (void *ignored)
|
||||
{
|
||||
struct resolv_test *obj = resolv_test_start
|
||||
((struct resolv_redirect_config)
|
||||
{
|
||||
.response_callback = response
|
||||
});
|
||||
|
||||
TEST_VERIFY ((_res.options & RES_USE_INET6) == 0);
|
||||
test_no_inet6 ();
|
||||
|
||||
_res.options |= RES_USE_INET6;
|
||||
check_hostent ("gethostbyname (\"a.inet6.example\")",
|
||||
gethostbyname ("a.inet6.example"),
|
||||
"error: NO_RECOVERY\n");
|
||||
check_hostent ("gethostbyname (\"am.inet6.example\")",
|
||||
gethostbyname ("am.inet6.example"),
|
||||
"name: am.inet6.example\n"
|
||||
"address: ::ffff:192.0.2.17\n");
|
||||
check_hostent ("gethostbyname (\"qa.inet6.example\")",
|
||||
gethostbyname ("qa.inet6.example"),
|
||||
"name: qa.inet6.example\n"
|
||||
"address: 2001:db8::1\n");
|
||||
check_hostent ("gethostbyname (\"qam.inet6.example\")",
|
||||
gethostbyname ("qam.inet6.example"),
|
||||
"name: qam.inet6.example\n"
|
||||
"address: 2001:db8::1\n");
|
||||
check_hostent ("gethostbyname (\"q.inet6.example\")",
|
||||
gethostbyname ("q.inet6.example"),
|
||||
"name: q.inet6.example\n"
|
||||
"address: 2001:db8::1\n");
|
||||
check_hostent ("gethostbyname (\"qm.inet6.example\")",
|
||||
gethostbyname ("qm.inet6.example"),
|
||||
"name: qm.inet6.example\n"
|
||||
"address: 2001:db8::1\n");
|
||||
check_hostent ("gethostbyname (\"amp.inet6.example\")",
|
||||
gethostbyname ("amp.inet6.example"),
|
||||
"error: NO_RECOVERY\n");
|
||||
check_hostent ("gethostbyname (\"qmp.inet6.example\")",
|
||||
gethostbyname ("qmp.inet6.example"),
|
||||
"name: qmp.inet6.example\n"
|
||||
"address: 2001:db8::1\n");
|
||||
check_hostent ("gethostbyname (\"ap.inet6.example\")",
|
||||
gethostbyname ("ap.inet6.example"),
|
||||
"error: NO_RECOVERY\n");
|
||||
check_hostent ("gethostbyname (\"6ap.inet6.example\")",
|
||||
gethostbyname ("6ap.inet6.example"),
|
||||
"name: 6ap.inet6.example\n"
|
||||
"address: ::ffff:192.0.2.17\n");
|
||||
check_hostent ("gethostbyname (\"am6p.inet6.example\")",
|
||||
gethostbyname ("am6p.inet6.example"),
|
||||
"name: am6p.inet6.example\n"
|
||||
"address: ::ffff:192.0.2.17\n");
|
||||
check_hostent ("gethostbyname (\"qp.inet6.example\")",
|
||||
gethostbyname ("qp.inet6.example"),
|
||||
"name: qp.inet6.example\n"
|
||||
"address: 2001:db8::1\n");
|
||||
test_get2_inet6 ();
|
||||
test_get2_inet6 ();
|
||||
test_gai ();
|
||||
test_get2_inet6 ();
|
||||
test_get2_inet6 ();
|
||||
|
||||
TEST_VERIFY (_res.options & RES_USE_INET6);
|
||||
_res.options &= ~RES_USE_INET6;
|
||||
test_no_inet6 ();
|
||||
|
||||
resolv_test_end (obj);
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static int
|
||||
do_test (void)
|
||||
{
|
||||
resolv_test_init ();
|
||||
|
||||
/* Attempt to run on a non-main thread first. */
|
||||
{
|
||||
pthread_t thr = xpthread_create (NULL, threadfunc, NULL);
|
||||
xpthread_join (thr);
|
||||
}
|
||||
|
||||
/* Try the main thread next. */
|
||||
threadfunc (NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
#include <support/test-driver.c>
|
||||
@ -24,7 +24,6 @@
|
||||
#include <errno.h>
|
||||
#include <gnu/lib-names.h>
|
||||
#include <netdb.h>
|
||||
#include <resolv/resolv-internal.h> /* For DEPRECATED_RES_USE_INET6. */
|
||||
#include <resolv/resolv_context.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
@ -120,7 +119,6 @@ print_resp (FILE *fp, res_state resp)
|
||||
if (resp->retry != RES_DFLRETRY)
|
||||
fprintf (fp, " attempts:%d", resp->retry);
|
||||
print_option_flag (fp, &options, RES_USEVC, "use-vc");
|
||||
print_option_flag (fp, &options, DEPRECATED_RES_USE_INET6, "inet6");
|
||||
print_option_flag (fp, &options, RES_ROTATE, "rotate");
|
||||
print_option_flag (fp, &options, RES_USE_EDNS0, "edns0");
|
||||
print_option_flag (fp, &options, RES_SNGLKUP,
|
||||
@ -560,7 +558,7 @@ struct test_case test_cases[] =
|
||||
"nameserver 192.0.2.1\n"
|
||||
"nameserver ::1\n"
|
||||
"nameserver 192.0.2.2\n",
|
||||
.expected = "options ndots:3 timeout:19 attempts:5 inet6 edns0\n"
|
||||
.expected = "options ndots:3 timeout:19 attempts:5 edns0\n"
|
||||
"search corp.example.com example.com\n"
|
||||
"; search[0]: corp.example.com\n"
|
||||
"; search[1]: example.com\n"
|
||||
|
||||
@ -276,19 +276,12 @@ thread_byname2 (void *closure)
|
||||
return byname (true);
|
||||
}
|
||||
|
||||
/* Call gethostbyname_r with RES_USE_INET6 (if do_2 is false), or
|
||||
gethostbyname_r with AF_INET6 (if do_2 is true). */
|
||||
/* Test gethostbyname2_r with AF_INET6. */
|
||||
static void *
|
||||
byname_inet6 (bool do_2)
|
||||
thread_byname2_af_inet6 (void *closure)
|
||||
{
|
||||
int this_thread = get_thread_number ();
|
||||
xpthread_barrier_wait (&barrier);
|
||||
if (!do_2)
|
||||
{
|
||||
res_init ();
|
||||
_res.options |= DEPRECATED_RES_USE_INET6;
|
||||
TEST_VERIFY (strcmp (_res.defdname, "example.com") == 0);
|
||||
}
|
||||
for (int i = 0; i < queries_per_thread; ++i)
|
||||
{
|
||||
char qname[100];
|
||||
@ -298,46 +291,19 @@ byname_inet6 (bool do_2)
|
||||
char buf[1000];
|
||||
struct hostent *e = NULL;
|
||||
int herrno;
|
||||
int ret;
|
||||
if (do_2)
|
||||
ret = gethostbyname2_r (qname, AF_INET6, &storage, buf, sizeof (buf),
|
||||
int ret = gethostbyname2_r (qname, AF_INET6, &storage, buf, sizeof (buf),
|
||||
&e, &herrno);
|
||||
else
|
||||
ret = gethostbyname_r (qname, &storage, buf, sizeof (buf),
|
||||
&e, &herrno);
|
||||
check_hostent (__func__,
|
||||
do_2 ? "gethostbyname2_r" : "gethostbyname_r",
|
||||
qname, ret, e, AF_INET6, i);
|
||||
check_hostent (__func__, "gethostbyname2_r", qname, ret, e, AF_INET6, i);
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Test gethostbyname_r with AF_INET6. */
|
||||
static void *
|
||||
thread_byname_inet6 (void *closure)
|
||||
{
|
||||
return byname_inet6 (false);
|
||||
}
|
||||
|
||||
/* Test gethostbyname2_r with AF_INET6. */
|
||||
static void *
|
||||
thread_byname2_af_inet6 (void *closure)
|
||||
{
|
||||
return byname_inet6 (true);
|
||||
}
|
||||
|
||||
/* Run getaddrinfo tests for FAMILY. */
|
||||
static void *
|
||||
gai (int family, bool do_inet6)
|
||||
gai (int family)
|
||||
{
|
||||
int this_thread = get_thread_number ();
|
||||
xpthread_barrier_wait (&barrier);
|
||||
if (do_inet6)
|
||||
{
|
||||
res_init ();
|
||||
_res.options |= DEPRECATED_RES_USE_INET6;
|
||||
check_have_conf ();
|
||||
}
|
||||
for (int i = 0; i < queries_per_thread; ++i)
|
||||
{
|
||||
char qname[100];
|
||||
@ -362,42 +328,21 @@ gai (int family, bool do_inet6)
|
||||
static void *
|
||||
thread_gai_inet (void *closure)
|
||||
{
|
||||
return gai (AF_INET, false);
|
||||
return gai (AF_INET);
|
||||
}
|
||||
|
||||
/* Test getaddrinfo with AF_INET6. */
|
||||
static void *
|
||||
thread_gai_inet6 (void *closure)
|
||||
{
|
||||
return gai (AF_INET6, false);
|
||||
return gai (AF_INET6);
|
||||
}
|
||||
|
||||
/* Test getaddrinfo with AF_UNSPEC. */
|
||||
static void *
|
||||
thread_gai_unspec (void *closure)
|
||||
{
|
||||
return gai (AF_UNSPEC, false);
|
||||
}
|
||||
|
||||
/* Test getaddrinfo with AF_INET. */
|
||||
static void *
|
||||
thread_gai_inet_inet6 (void *closure)
|
||||
{
|
||||
return gai (AF_INET, true);
|
||||
}
|
||||
|
||||
/* Test getaddrinfo with AF_INET6. */
|
||||
static void *
|
||||
thread_gai_inet6_inet6 (void *closure)
|
||||
{
|
||||
return gai (AF_INET6, true);
|
||||
}
|
||||
|
||||
/* Test getaddrinfo with AF_UNSPEC. */
|
||||
static void *
|
||||
thread_gai_unspec_inet6 (void *closure)
|
||||
{
|
||||
return gai (AF_UNSPEC, true);
|
||||
return gai (AF_UNSPEC);
|
||||
}
|
||||
|
||||
/* Description of the chroot environment used to run the tests. */
|
||||
@ -451,7 +396,7 @@ do_test (void)
|
||||
.server_address_overrides = server_addresses,
|
||||
});
|
||||
|
||||
enum { thread_count = 10 };
|
||||
enum { thread_count = 6 };
|
||||
xpthread_barrier_init (&barrier, NULL, thread_count + 1);
|
||||
pthread_t threads[thread_count];
|
||||
typedef void *(*thread_func) (void *);
|
||||
@ -459,14 +404,10 @@ do_test (void)
|
||||
{
|
||||
thread_byname,
|
||||
thread_byname2,
|
||||
thread_byname_inet6,
|
||||
thread_byname2_af_inet6,
|
||||
thread_gai_inet,
|
||||
thread_gai_inet6,
|
||||
thread_gai_unspec,
|
||||
thread_gai_inet_inet6,
|
||||
thread_gai_inet6_inet6,
|
||||
thread_gai_unspec_inet6,
|
||||
};
|
||||
for (int i = 0; i < thread_count; ++i)
|
||||
threads[i] = xpthread_create (NULL, thread_funcs[i], NULL);
|
||||
|
||||
@ -61,7 +61,6 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
#include <nss.h>
|
||||
#include <resolv/resolv-internal.h>
|
||||
#include <resolv/resolv_context.h>
|
||||
#include <resolv/res_use_inet6.h>
|
||||
#include <stdbool.h>
|
||||
#include <stdio.h>
|
||||
#include <stdio_ext.h>
|
||||
@ -255,7 +254,6 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
|
||||
break; \
|
||||
if (!scratch_buffer_grow (tmpbuf)) \
|
||||
{ \
|
||||
__resolv_context_enable_inet6 (res_ctx, res_enable_inet6); \
|
||||
__resolv_context_put (res_ctx); \
|
||||
result = -EAI_MEMORY; \
|
||||
goto free_and_return; \
|
||||
@ -266,7 +264,6 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
|
||||
{ \
|
||||
if (h_errno == NETDB_INTERNAL) \
|
||||
{ \
|
||||
__resolv_context_enable_inet6 (res_ctx, res_enable_inet6); \
|
||||
__resolv_context_put (res_ctx); \
|
||||
result = -EAI_SYSTEM; \
|
||||
goto free_and_return; \
|
||||
@ -280,7 +277,6 @@ convert_hostent_to_gaih_addrtuple (const struct addrinfo *req,
|
||||
{ \
|
||||
if (!convert_hostent_to_gaih_addrtuple (req, _family, &th, &addrmem)) \
|
||||
{ \
|
||||
__resolv_context_enable_inet6 (res_ctx, res_enable_inet6); \
|
||||
__resolv_context_put (res_ctx); \
|
||||
result = -EAI_SYSTEM; \
|
||||
goto free_and_return; \
|
||||
@ -558,7 +554,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
|
||||
enum nss_status status = NSS_STATUS_UNAVAIL;
|
||||
int no_more;
|
||||
struct resolv_context *res_ctx = NULL;
|
||||
bool res_enable_inet6 = false;
|
||||
|
||||
/* If we do not have to look for IPv6 addresses or the canonical
|
||||
name, use the simple, old functions, which do not support
|
||||
@ -749,7 +744,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
|
||||
addresses to IPv6 addresses, so we use the no_inet6
|
||||
function variant. */
|
||||
res_ctx = __resolv_context_get ();
|
||||
res_enable_inet6 = __resolv_context_disable_inet6 (res_ctx);
|
||||
if (res_ctx == NULL)
|
||||
no_more = 1;
|
||||
|
||||
@ -785,8 +779,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
|
||||
|
||||
if (!scratch_buffer_grow (tmpbuf))
|
||||
{
|
||||
__resolv_context_enable_inet6
|
||||
(res_ctx, res_enable_inet6);
|
||||
__resolv_context_put (res_ctx);
|
||||
result = -EAI_MEMORY;
|
||||
goto free_and_return;
|
||||
@ -886,8 +878,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
|
||||
canonbuf = getcanonname (nip, at, name);
|
||||
if (canonbuf == NULL)
|
||||
{
|
||||
__resolv_context_enable_inet6
|
||||
(res_ctx, res_enable_inet6);
|
||||
__resolv_context_put (res_ctx);
|
||||
result = -EAI_MEMORY;
|
||||
goto free_and_return;
|
||||
@ -932,7 +922,6 @@ gaih_inet (const char *name, const struct gaih_service *service,
|
||||
nip = nip->next;
|
||||
}
|
||||
|
||||
__resolv_context_enable_inet6 (res_ctx, res_enable_inet6);
|
||||
__resolv_context_put (res_ctx);
|
||||
|
||||
/* If we have a failure which sets errno, report it using
|
||||
|
||||
Loading…
Reference in New Issue
Block a user