From: Alexey Gladkov <legion@altlinux.ru> To: ALT Devel discussion list <devel@lists.altlinux.org> Subject: [devel] [PATCH 0/6] sysklogd: implement checkum chains for log entries Date: Tue, 27 Oct 2020 12:33:45 +0100 Message-ID: <20201027113351.3373843-1-legion@altlinux.ru> (raw) Привет! Этот патчсет реализовывает цепочки хэшей для записей в логе. Это позволяет обнаружить возможное втрожение в логи. При старте syslogd считает хэш для каждой записи используя хэш предыдущей записи или пустой, если это первая запись в лог после старта. Цепочка не прерывается до остановки сервера или перекофигруции. Наследование чексумм между рестартами не сделано намеренно поскольку у сервера нет возможности сохранить и гарантировать неприкосновенность чексуммы между рестартами. Рестарт syslogd, как и нарушение цепочки чексумм, считается поводом для расследования. Реализация sha256 (каталог block/) взята из git. Alexey Gladkov (6): Optimize the filling of the record fields syslogd: make logerror is printf-like syslogd: Implement customization of log file records syslogd: no need to try to substitute a field in a record if it's not in the log_format Makefile: use make variables instead of a hardcoded list syslogd: implement checksum chains for log entries Makefile | 24 +- block/bswap.h | 217 ++++++++++++++++ block/sha256.c | 202 +++++++++++++++ block/sha256.h | 24 ++ hash.h | 66 +++++ syslog.conf | 17 ++ syslogd.c | 419 +++++++++++++++++++++++++------ tests/log-hashes/.gitignore | 5 + tests/log-hashes/check | 28 +++ tests/log-hashes/check-hashes.sh | 28 +++ 10 files changed, 950 insertions(+), 80 deletions(-) create mode 100644 block/bswap.h create mode 100644 block/sha256.c create mode 100644 block/sha256.h create mode 100644 hash.h create mode 100644 tests/log-hashes/.gitignore create mode 100755 tests/log-hashes/check create mode 100755 tests/log-hashes/check-hashes.sh -- 2.25.4
next reply other threads:[~2020-10-27 11:33 UTC|newest] Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-10-27 11:33 Alexey Gladkov [this message] 2020-10-27 11:33 ` [devel] [PATCH 1/6] Optimize the filling of the record fields Alexey Gladkov 2020-10-27 11:33 ` [devel] [PATCH 2/6] syslogd: make logerror is printf-like Alexey Gladkov 2020-10-27 11:33 ` [devel] [PATCH 3/6] syslogd: Implement customization of log file records Alexey Gladkov 2020-10-27 11:33 ` [devel] [PATCH 4/6] syslogd: no need to try to substitute a field in a record if it's not in the log_format Alexey Gladkov 2020-10-27 11:33 ` [devel] [PATCH 5/6] Makefile: use make variables instead of a hardcoded list Alexey Gladkov 2020-10-27 11:33 ` [devel] [PATCH 6/6] syslogd: implement checksum chains for log entries Alexey Gladkov 2020-10-27 11:44 ` [devel] [PATCH 0/6] sysklogd: implement checkum " Alexey V. Vissarionov 2020-10-27 12:13 ` Alexey Gladkov
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