use native SYSCTL_TYPE__CTL_32 and SYSCTL_TYPE__CTL_STR
v2: add BUILD_BUG_ONS to check SysctlType constants are equal to
__CTL_STR and CTL_32, change __CTL_STR to CTL_STR in SysctlType enum.
Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
int32 with boolean value in protobuf has the same size with bool,
many sysctls are boolean but we don't lose anything by storing them
in int32, so add only int32 and string fields
will need string field for stable_secret ipv6 sysctl
also such fromat allows us to easily handle non-present int sysctls
we can check if we have it using has_*arg
v3: rebase images/Makefile to criu-dev branch
v4: use enum for type
Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Reviewed-by: Andrew Vagin <avagin@virtuozzo.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
