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samba-mirror/nsswitch
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Ralph Boehme 642a4452ce nsswitch: leverage TLS if available in favour over global locking 
The global locking can lead to deadlocks when using nscd: when processing the
first request in winbind, when we know we call into code that will recurse into
winbind we call winbind_off() which sets an environment variable which is later
checked here in the nsswitch module.

But with nscd in the stack, we don't see the env variable in nsswitch, so when
we try to acquire the global lock again, it is already locked and we deadlock.

By using a thread specific winbindd_context, plus a few other thread local global
variables, we don't need a global lock anymore.

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
2023-01-05 11:33:37 +00:00
..
krb5_plugin
nsswitch: explicitly mark magic krb5 plugin symbols as _PUBLIC_
2021-11-30 15:53:34 +00:00
libwbclient
nsswitch: leverage TLS if available in favour over global locking
2023-01-05 11:33:37 +00:00
tests
nsswitch:tests: Use system_or_builddir_binary() for test_rfc2307_mapping
2022-12-23 14:35:31 +00:00
nsstest.c
CVE-2020-25717: nsswitch/nsstest.c: Lower 'non existent uid' to make room for new accounts
2021-11-15 18:10:28 +00:00
nsstest.h
nsswitch: Fix checking for config.h #define in nsstest.h
2018-12-16 21:04:10 +01:00
pam_winbind.c
pam_winbind: Fix a memleak
2022-11-22 18:27:33 +00:00
pam_winbind.h
pam_winbind: add new pwd_change_prompt option (defaults to off).
2021-12-16 03:05:30 +00:00
stress-nss-libwbclient.c
nsswitch/stress-nss-libwbclient: also test after fork
2023-01-05 11:33:37 +00:00
wb_common.c
nsswitch: leverage TLS if available in favour over global locking
2023-01-05 11:33:37 +00:00
wb_reqtrans.c
nsswitch: make wb_reqtrans a common subsystem.
2011-02-17 00:52:42 +01:00
wb_reqtrans.h
nsswitch: make wb_reqtrans a common subsystem.
2011-02-17 00:52:42 +01:00
wbinfo.c
wbinfo: Add --change-secret-at=dcname
2022-12-21 19:10:35 +00:00
winbind_client.h
nsswitch: move winbindd_free_response() as inline function to winbind_struct_protocol.h
2021-11-30 15:53:34 +00:00
winbind_nss_aix.c
nsswitch: ensure the attrlist_t array is large enough for a NULL sentinel
2021-07-12 15:11:42 +00:00
winbind_nss_config.h
Remove special socket_wrapper code.
2014-04-17 14:56:06 +02:00
winbind_nss_freebsd.c
nsswitch: explicitly mark nss_module_register() _PUBLIC_ on FreeBSD
2021-11-30 15:53:34 +00:00
winbind_nss_hpux.h
s3: readd h_errno struct member but rename it
2010-06-10 23:22:49 +02:00
winbind_nss_linux.c
nsswitch: prepare for removing global locking by using TLS
2023-01-05 11:33:37 +00:00
winbind_nss_linux.h
nsswitch: explicitly mark NSS_STATUS _nss_winbind_* symbols as _PUBLIC_ on Linux
2021-11-30 15:53:34 +00:00
winbind_nss_netbsd.c
winbind_nss_netbsd: use WBFLAG_FROM_NSS
2018-12-22 03:11:14 +01:00
winbind_nss_netbsd.h
…
winbind_nss_solaris.c
winbind_nss_solaris: use WBFLAG_FROM_NSS
2018-12-22 03:11:14 +01:00
winbind_nss_solaris.h
nsswitch: maintain prototypes for the linux based functions only once
2018-04-03 16:41:09 +02:00
winbind_nss.h
nsswitch: Fix checking for config.h #define in winbind_nss.h
2018-12-16 21:04:10 +01:00
winbind_struct_protocol.h
s3:winbind: Convert InitConnection from struct based to NDR based
2022-05-19 17:51:33 +00:00
wins_freebsd.c
nsswitch: explicitly mark nss_module_register() _PUBLIC_ on FreeBSD
2021-11-30 15:53:34 +00:00
wins.c
nsswitch/wins: Define NETDB_* for other libc's
2022-08-08 06:33:38 +00:00
wscript_build
nsswitch: reduce dependecies to private libraries and link static/builtin if possible
2021-11-30 15:53:34 +00:00
wscript_configure
nss/waf: check for secmethod_table.method_{attrlist,version} for aix >= 5.2
2018-12-22 06:22:22 +01:00