Arnd Bergmann
cca9bab1b7
tcp: use monotonic timestamps for PAWS ...
Using get_seconds() for timestamps is deprecated since it can lead
to overflows on 32-bit systems. While the interface generally doesn't
overflow until year 2106, the specific implementation of the TCP PAWS
algorithm breaks in 2038 when the intermediate signed 32-bit timestamps
overflow.
A related problem is that the local timestamps in CLOCK_REALTIME form
lead to unexpected behavior when settimeofday is called to set the system
clock backwards or forwards by more than 24 days.
While the first problem could be solved by using an overflow-safe method
of comparing the timestamps, a nicer solution is to use a monotonic
clocksource with ktime_get_seconds() that simply doesn't overflow (at
least not until 136 years after boot) and that doesn't change during
settimeofday().
To make 32-bit and 64-bit architectures behave the same way here, and
also save a few bytes in the tcp_options_received structure, I'm changing
the type to a 32-bit integer, which is now safe on all architectures.
Finally, the ts_recent_stamp field also (confusingly) gets used to store
a jiffies value in tcp_synq_overflow()/tcp_synq_no_recent_overflow().
This is currently safe, but changing the type to 32-bit requires
some small changes there to keep it working.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-12 14:50:40 -07:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
crypto: axis - remove unnecessary platform_get_resource() error check
2018-01-26 01:10:29 +11:00
crypto: brcm - explicitly cast cipher to hash type
2018-03-31 01:33:14 +08:00
crypto: caam/qi - fix warning in init_cgr()
2018-05-31 00:13:47 +08:00
treewide: kzalloc_node() -> kcalloc_node()
2018-06-12 16:19:22 -07:00
crypto: ccp - Add GET_ID SEV command
2018-05-31 00:13:56 +08:00
crypto: ccree - silence debug prints
2018-05-31 00:13:50 +08:00
tcp: use monotonic timestamps for PAWS
2018-07-12 14:50:40 -07:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
crypto: mediatek - move to generic async completion
2017-11-03 22:11:23 +08:00
crypto: nx - fix spelling mistake: "seqeunce" -> "sequence"
2018-05-19 00:13:55 +08:00
treewide: kzalloc_node() -> kcalloc_node()
2018-06-12 16:19:22 -07:00
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
2017-11-14 10:52:09 -08:00
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
treewide: kmalloc() -> kmalloc_array()
2018-06-12 16:19:22 -07:00
crypto: sunxi-ss - Add MODULE_ALIAS to sun4i-ss
2018-02-22 22:16:15 +08:00
crypto: ux500 - Delete two unnecessary variable initialisations in ux500_cryp_probe()
2018-02-22 22:16:34 +08:00
treewide: kzalloc_node() -> kcalloc_node()
2018-06-12 16:19:22 -07:00
crypto: clarify licensing of OpenSSL asm code
2018-05-31 00:13:44 +08:00
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
crypto: atmel-aes - fix the keys zeroing on errors
2018-03-03 00:03:40 +08:00
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
crypto: atmel - Delete error messages for a failed memory allocation in six functions
2018-02-22 22:17:00 +08:00
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
crypto: atmel - Delete error messages for a failed memory allocation in six functions
2018-02-22 22:17:00 +08:00
crypto: drivers - simplify getting .drvdata
2018-04-28 16:09:35 +08:00
crypto: hifn_795x - Fix a memory leak in the error handling path of 'hifn_probe()'
2017-11-29 17:33:30 +11:00
crypto: ixp4xx - don't leak pointers to authenc keys
2018-03-31 01:33:12 +08:00
crypto: inside-secure - authenc(hmac(sha256), cbc(aes)) support
2018-05-27 00:11:59 +08:00
crypto: bfin_crc - remove blackfin CRC driver
2018-03-23 23:48:37 +08:00
crypto: mxs-dcp - Add empty hash export and import
2018-02-15 23:23:44 +08:00
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
crypto: omap-aes - make queue length configurable
2018-03-09 22:45:39 +08:00
crypto: omap - convert to new crypto engine API
2018-02-15 23:26:51 +08:00
crypto: omap-crypto - Verify page zone scatterlists before starting DMA
2018-03-09 22:45:36 +08:00
crypto: omap - convert to new crypto engine API
2018-02-15 23:26:51 +08:00
crypto: omap-sham - fix memleak
2018-04-28 16:09:35 +08:00
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
2018-02-15 01:15:52 +01:00
crypto: drivers - simplify getting .drvdata
2018-04-28 16:09:35 +08:00
crypto: s5p-sss - Constify pointed data (arguments and local variables)
2018-03-09 22:45:47 +08:00
crypto: sahara - Improve a size determination in sahara_probe()
2018-02-22 22:16:38 +08:00
treewide: devm_kzalloc() -> devm_kcalloc()
2018-06-12 16:19:22 -07:00
crypto: talitos - chain in buffered data for ahash on SEC1
2017-10-12 22:55:38 +08:00
cca9bab1b7