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Use empty initialization of structs to minimize the memset() usage, to
reduce the amount of calls which are not sensitive.
Non trivial changes:
- pam_env:
* erase environment variables where possible
- pam_exec:
* erase responce on error
* erase auth token
- pam_pwhistory:
* erase buffers containing old passwords
- pam_selinux: skip overwriting data structure consisting of only
pointers to insensitive data, which also gets free'd afterwards (so
it currently does not protect against double-free or use-after-free on
the member pointers)
- pam_unix: erase cipher data in more places
- pam_userdb: erase password hashes
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This ensures "config.h" is included before any system header
which fixes the following bug reported by ALT diagnostics:
verify-elf: ERROR: ./lib/security/pam_timestamp.so: uses non-LFS functions: __fxstat open
* modules/pam_timestamp/hmacsha1.c: Include "config.h".
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* modules/pam_timestamp/hmacsha1.c(hmac_key_create):
close 'keyfd' when failed to own it.
Signed-off-by: Amarnath Valluri <amarnath.valluri@intel.com>
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Cleanup trailing whitespaces, indentation that uses spaces before tabs,
and blank lines at EOF. Make the project free of warnings reported by
git diff --check 4b825dc642cb6eb9a060e54bf8d69288fbee4904 HEAD
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Purpose of commit: new feature
Commit summary:
---------------
2008-11-28 Tomas Mraz <t8m@centrum.cz>
* modules/pam_tally2/pam_tally2.c (tally_check): Fix info format
to be the same as in pam_tally.
* configure.in: Add modules/pam_timestamp/Makefile.
* doc/sag/Linux-PAM_SAG.xml: Include pam_timestamp.xml.
* doc/sag/pam_timestamp.xml: New.
* libpam/pam_static_modules.h: Add pam_timestamp static struct.
* modules/Makefile.am: Add pam_timestamp directory.
* modules/pam_timestamp/Makefile.am: New.
* modules/pam_timestamp/README.xml: New.
* modules/pam_timestamp/hmacsha1.h: New.
* modules/pam_timestamp/sha1.h: New.
* modules/pam_timestamp/pam_timestamp.8.xml: New.
* modules/pam_timestamp/pam_timestamp_check.8.xml: New.
* modules/pam_timestamp/pam_timestamp.c: New.
* modules/pam_timestamp/pam_timestamp_check.c: New.
* modules/pam_timestamp/hmacfile.c: New.
* modules/pam_timestamp/hmacsha1.c: New.
* modules/pam_timestamp/sha1.c: New.
* modules/pam_timestamp/tst-pam_timestamp: New.
* po/POTFILES.in: Add pam_timestamp sources.
* po/*.po: Regenerate.
* po/cs.po: Updated translations.
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