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5 years agocgfsng: coding style for cgfsng_monitor_create()
Christian Brauner [Sun, 10 Feb 2019 09:51:43 +0000 (10:51 +0100)]
cgfsng: coding style for cgfsng_monitor_create()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2833 from brauner/2019-02-09/bugfixes
Christian Brauner [Sat, 9 Feb 2019 10:03:42 +0000 (11:03 +0100)]
Merge pull request #2833 from brauner/2019-02-09/bugfixes

bugfixes

5 years agolxc-init: exit with error on wait failure
Christian Brauner [Sat, 9 Feb 2019 00:35:44 +0000 (01:35 +0100)]
lxc-init: exit with error on wait failure

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agostart: prevent signed-issues
Christian Brauner [Sat, 9 Feb 2019 00:33:18 +0000 (01:33 +0100)]
start: prevent signed-issues

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocgfsng: remove unnecessary check
Christian Brauner [Sat, 9 Feb 2019 00:31:52 +0000 (01:31 +0100)]
cgfsng: remove unnecessary check

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocommands: remove unnecessary check
Christian Brauner [Sat, 9 Feb 2019 00:28:52 +0000 (01:28 +0100)]
commands: remove unnecessary check

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2827 from brauner/2019-02-07/auto_cleanup
Serge Hallyn [Fri, 8 Feb 2019 21:57:37 +0000 (15:57 -0600)]
Merge pull request #2827 from brauner/2019-02-07/auto_cleanup

cgroups: partially switch to cleanup macros

5 years agocgroups: partially switch to cleanup macros
Christian Brauner [Thu, 7 Feb 2019 08:15:09 +0000 (09:15 +0100)]
cgroups: partially switch to cleanup macros

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2825 from brauner/lxc/master
Christian Brauner [Wed, 6 Feb 2019 11:24:48 +0000 (12:24 +0100)]
Merge pull request #2825 from brauner/lxc/master

README: add LGTM

5 years agoREADME: add LGTM
Christian Brauner [Wed, 6 Feb 2019 11:23:17 +0000 (12:23 +0100)]
README: add LGTM

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2821 from brauner/2019-02-05/remove_stack_allocation
Wolfgang Bumiller [Wed, 6 Feb 2019 11:10:48 +0000 (12:10 +0100)]
Merge pull request #2821 from brauner/2019-02-05/remove_stack_allocation

tree-wide: wipe alloca() from the codebase

5 years agolxc-unshare: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:47:18 +0000 (07:47 +0100)]
lxc-unshare: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agooverlay: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:46:13 +0000 (07:46 +0100)]
overlay: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agorbd: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:44:13 +0000 (07:44 +0100)]
rbd: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agonbd: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:42:50 +0000 (07:42 +0100)]
nbd: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agolvm: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:39:51 +0000 (07:39 +0100)]
lvm: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoloop: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:38:02 +0000 (07:38 +0100)]
loop: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoterminal: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:26:19 +0000 (07:26 +0100)]
terminal: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agostring_utils: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:30:00 +0000 (07:30 +0100)]
string_utils: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agostorage: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:32:21 +0000 (07:32 +0100)]
storage: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agostart: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:25:12 +0000 (07:25 +0100)]
start: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agopam_cgfs: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:33:48 +0000 (07:33 +0100)]
pam_cgfs: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agonetwork: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:27:29 +0000 (07:27 +0100)]
network: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agonamespace: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:23:19 +0000 (07:23 +0100)]
namespace: remove stack allocations

Switch to a static stack instead of allocating a new one. There's really
no point in doing all of the dance to get the current pagesize.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agomonitor: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:31:16 +0000 (07:31 +0100)]
monitor: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agolxccontainer: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:19:56 +0000 (07:19 +0100)]
lxccontainer: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoconfile: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:12:17 +0000 (07:12 +0100)]
confile: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoconf: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:08:44 +0000 (07:08 +0100)]
conf: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocommands_utils: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:06:02 +0000 (07:06 +0100)]
commands_utils: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocommands: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:02:07 +0000 (07:02 +0100)]
commands: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agolxc_user_nic: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:01:50 +0000 (07:01 +0100)]
lxc_user_nic: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocgroups: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:01:33 +0000 (07:01 +0100)]
cgroups: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agolxcmntent: remove stack allocations
Christian Brauner [Tue, 5 Feb 2019 06:00:58 +0000 (07:00 +0100)]
lxcmntent: remove stack allocations

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agomemory_utils: add memory_utils.h
Christian Brauner [Tue, 5 Feb 2019 05:51:55 +0000 (06:51 +0100)]
memory_utils: add memory_utils.h

The header defines a simple wrapper for free() that can be used with
gcc's and clang's __attribute__((__cleanup__(<cleanup-fun>))) macro.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2824 from brauner/2019-02-05/compiler_based_hardening
Stéphane Graber [Tue, 5 Feb 2019 23:24:46 +0000 (18:24 -0500)]
Merge pull request #2824 from brauner/2019-02-05/compiler_based_hardening

compiler: hardening

5 years agocompiler: -Wnested-externs hardening
Christian Brauner [Tue, 5 Feb 2019 22:50:43 +0000 (23:50 +0100)]
compiler: -Wnested-externs hardening

Warn if an extern declaration is encountered within a function.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Wdate-time hardening
Christian Brauner [Tue, 5 Feb 2019 22:49:48 +0000 (23:49 +0100)]
compiler: -Wdate-time hardening

Warn when macros __TIME__, __DATE__ or __TIMESTAMP__ are encountered as
they might prevent bit-wise-identical reproducible compilations.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Werror=shift-overflow=2 hardening
Christian Brauner [Tue, 5 Feb 2019 22:48:32 +0000 (23:48 +0100)]
compiler: -Werror=shift-overflow=2 hardening

Warn about left shift overflows. This warning is enabled by default in
C99 and C++11 modes (and newer).

-Wshift-overflow=2
This warning level also warns about left-shifting 1 into the sign bit,
unless C++14 mode (or newer) is active.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Werror=shift-count-overflow hardening
Christian Brauner [Tue, 5 Feb 2019 22:47:31 +0000 (23:47 +0100)]
compiler: -Werror=shift-count-overflow hardening

Warn if shift count >= width of type.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: fix -fstack-protector-strong
Christian Brauner [Tue, 5 Feb 2019 22:44:20 +0000 (23:44 +0100)]
compiler: fix -fstack-protector-strong

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -fdiagnostics-show-option
Christian Brauner [Tue, 5 Feb 2019 22:25:19 +0000 (23:25 +0100)]
compiler: -fdiagnostics-show-option

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Werror=overflow hardening
Christian Brauner [Tue, 5 Feb 2019 22:21:43 +0000 (23:21 +0100)]
compiler: -Werror=overflow hardening

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Wendif-labels hardening
Christian Brauner [Tue, 5 Feb 2019 22:15:05 +0000 (23:15 +0100)]
compiler: -Wendif-labels hardening

Do not warn whenever an #else or an #endif are followed by text.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2823 from brauner/2019-02-05/compiler_based_hardening
Stéphane Graber [Tue, 5 Feb 2019 21:55:36 +0000 (16:55 -0500)]
Merge pull request #2823 from brauner/2019-02-05/compiler_based_hardening

compiler: hardening

5 years agocompiler: -Wshadow hardening
Christian Brauner [Tue, 5 Feb 2019 19:56:08 +0000 (20:56 +0100)]
compiler: -Wshadow hardening

Warn whenever a local variable or type declaration shadows another
variable, parameter, type, class member (in C++), or instance variable
(in Objective-C) or whenever a built-in function is shadowed.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: set -Wimplicit-fallthrough to 5
Christian Brauner [Tue, 5 Feb 2019 19:54:33 +0000 (20:54 +0100)]
compiler: set -Wimplicit-fallthrough to 5

-Wimplicit-fallthrough=5 doesn’t recognize any comments as fallthrough
comments, only attributes disable the warning.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Wformat=2 hardening
Christian Brauner [Tue, 5 Feb 2019 19:51:50 +0000 (20:51 +0100)]
compiler: -Wformat=2 hardening

Enable -Wformat plus additional format checks. Currently equivalent to
-Wformat -Wformat-nonliteral -Wformat-security -Wformat-y2k.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Werror=incompatible-pointer-types
Christian Brauner [Tue, 5 Feb 2019 19:49:59 +0000 (20:49 +0100)]
compiler: -Werror=incompatible-pointer-types

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Werror=return-type hardening
Christian Brauner [Tue, 5 Feb 2019 19:48:45 +0000 (20:48 +0100)]
compiler: -Werror=return-type hardening

Warn whenever a function is defined with a return type that defaults to
int. Also warn about any return statement with no return value in a
function whose return type is not void (falling off the end of the
function body is considered returning without a value).

For C only, warn about a return statement with an expression in a
function whose return type is void, unless the expression type is also
void. As a GNU extension, the latter case is accepted without a warning
unless -Wpedantic is used.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Wsuggest-attribute=noreturn hardening
Christian Brauner [Tue, 5 Feb 2019 19:44:57 +0000 (20:44 +0100)]
compiler: -Wsuggest-attribute=noreturn hardening

Warn about functions that might be candidates for attributes pure, const
or noreturn or malloc.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Wfloat-equal hardening
Christian Brauner [Tue, 5 Feb 2019 19:43:52 +0000 (20:43 +0100)]
compiler: -Wfloat-equal hardening

Warn if floating-point values are used in equality comparisons.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Winit-self hardening
Christian Brauner [Tue, 5 Feb 2019 19:43:00 +0000 (20:43 +0100)]
compiler: -Winit-self hardening

Warn about uninitialized variables that are initialized with themselves.
Note this option can only be used with the -Wuninitialized option.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Wold-style-definition hardening
Christian Brauner [Tue, 5 Feb 2019 19:33:40 +0000 (20:33 +0100)]
compiler: -Wold-style-definition hardening

Warn if an old-style function definition is used. A warning is given
even if there is a previous prototype.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Wmissing-include-dirs hardening
Christian Brauner [Tue, 5 Feb 2019 19:31:20 +0000 (20:31 +0100)]
compiler: -Wmissing-include-dirs hardening

Warn if a user-supplied include directory does not exist.

This already surfaced a bug that is fixed by this commit.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: -Wlogical-op hardening
Christian Brauner [Tue, 5 Feb 2019 19:29:21 +0000 (20:29 +0100)]
compiler: -Wlogical-op hardening

Warn about suspicious uses of logical operators in expressions.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2822 from tomponline/tp-rpmspec
Stéphane Graber [Tue, 5 Feb 2019 17:16:41 +0000 (18:16 +0100)]
Merge pull request #2822 from tomponline/tp-rpmspec

fix rpm packaging for bash completion directory.

5 years agofix rpm packaging for bash completion directory.
tomponline [Tue, 5 Feb 2019 17:10:20 +0000 (17:10 +0000)]
fix rpm packaging for bash completion directory.

Closed #1825

Signed-off-by: tomponline <tomp@tomp.uk>
5 years agoMerge pull request #2820 from brauner/2019-01-31/cgfsng_sys/kernel/cgroup/delegate
Stéphane Graber [Fri, 1 Feb 2019 11:38:14 +0000 (12:38 +0100)]
Merge pull request #2820 from brauner/2019-01-31/cgfsng_sys/kernel/cgroup/delegate

cgroups: use of /sys/kernel/cgroup/delegate file

5 years agoMerge pull request #2787 from Blub/2019-01-17/revert-sys-double-bindmount-cleanup
Stéphane Graber [Fri, 1 Feb 2019 11:37:38 +0000 (12:37 +0100)]
Merge pull request #2787 from Blub/2019-01-17/revert-sys-double-bindmount-cleanup

Revert "conf: remove extra MS_BIND with sysfs:mixed"

5 years agocgroups: use of /sys/kernel/cgroup/delegate file
Christian Brauner [Fri, 1 Feb 2019 09:57:49 +0000 (10:57 +0100)]
cgroups: use of /sys/kernel/cgroup/delegate file

This file contains the files one needs to chown to successfully delegate
cgroup files to unprivileged users.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2806 from brauner/2019-01-27/bugfixes
Christian Brauner [Thu, 31 Jan 2019 10:38:04 +0000 (11:38 +0100)]
Merge pull request #2806 from brauner/2019-01-27/bugfixes

freezer: non-functional changes

5 years agofreezer: non-functional changes
Christian Brauner [Sun, 27 Jan 2019 01:04:21 +0000 (02:04 +0100)]
freezer: non-functional changes

Fix the coding style in a few files.

Fixes: db1228b35f3e ("Avoid hardcoded string length")
Fixes: 71fc9c046816 ("Avoid risk of "too far memory read"")
Fixes: 2341916a0367 ("Avoid double lxc-freeze/unfreeze")
Fixes: 9eb9ce3e4778 ("Update freezer.c")
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2817 from Rachid-Koucha/patch-5
Christian Brauner [Tue, 29 Jan 2019 12:06:22 +0000 (13:06 +0100)]
Merge pull request #2817 from Rachid-Koucha/patch-5

More accurate error msg for template file

5 years agoMore accurate error msg for template file
Rachid Koucha [Tue, 29 Jan 2019 11:20:46 +0000 (12:20 +0100)]
More accurate error msg for template file

When calling lxc-create, if the template exists but is not executable, we end with the following error messages which make believe that the template file does not exist when it is merely a execute access problem:

lxc-create: ctn00: utils.c: get_template_path: 918 No such file or directory - bad template: /.../lxc-busybox
lxc-create: ctn00: lxccontainer.c: do_lxcapi_create: 1786 Unknown template "/.../lxc-busybox"
lxc-create: ctn00: tools/lxc_create.c: main: 327 Failed to create container ctn00

Actually internally the errno is lost as the following code triggers a useless access to (strace output):

access("/.../lxc-busybox", X_OK) = -1 ENOENT (No such file or directory)

With the above fix, we get a more explicit error message when the template file is missing the "execute" bit:

lxc-create: bbc: utils.c: get_template_path: 917 Permission denied - Bad template pathname: /tmp/azerty
lxc-create: bbc: lxccontainer.c: do_lxcapi_create: 1816 Unknown template "/tmp/azerty"
lxc-create: bbc: tools/lxc_create.c: main: 331 Failed to create container bbc

With the above fix, we get a more explicit error message when the pathname of the template file is incorrect:

lxc-create: bbc: utils.c: get_template_path: 917 No such file or directory - Bad template pathname: /tmp/qwerty
lxc-create: bbc: lxccontainer.c: do_lxcapi_create: 1816 Unknown template "/tmp/qwerty"
lxc-create: bbc: tools/lxc_create.c: main: 331 Failed to create container bbc

Signed-off-by: Rachid Koucha <rachid.koucha@gmail.com>
5 years agoMerge pull request #2807 from brauner/2019-01-27/mount_entries
Stéphane Graber [Mon, 28 Jan 2019 22:24:01 +0000 (17:24 -0500)]
Merge pull request #2807 from brauner/2019-01-27/mount_entries

conf: check for successful mount entry parse

5 years agoMerge pull request #2814 from tenforward/japanese
Christian Brauner [Mon, 28 Jan 2019 10:54:45 +0000 (11:54 +0100)]
Merge pull request #2814 from tenforward/japanese

doc: Add lxc.seccomp.allow_nesting to Japanese lxc.container.conf(5)

5 years agodoc: Add lxc.seccomp.allow_nesting to Japanese lxc.container.conf(5)
KATOH Yasufumi [Mon, 28 Jan 2019 10:01:40 +0000 (19:01 +0900)]
doc: Add lxc.seccomp.allow_nesting to Japanese lxc.container.conf(5)

Signed-off-by: KATOH Yasufumi <karma@jazz.email.ne.jp>
5 years agoMerge pull request #2813 from brauner/2019-01-27/bugfixes_2
Serge Hallyn [Mon, 28 Jan 2019 03:41:49 +0000 (21:41 -0600)]
Merge pull request #2813 from brauner/2019-01-27/bugfixes_2

compiler: remove deprecated and unneeded header

5 years agoprlimit: remove deprecated and unneeded header
Christian Brauner [Sun, 27 Jan 2019 22:05:47 +0000 (23:05 +0100)]
prlimit: remove deprecated and unneeded header

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agocompiler: remove deprecated and unneeded header
Christian Brauner [Sun, 27 Jan 2019 22:02:49 +0000 (23:02 +0100)]
compiler: remove deprecated and unneeded header

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2812 from Rachid-Koucha/patch-7
Christian Brauner [Sun, 27 Jan 2019 13:03:40 +0000 (14:03 +0100)]
Merge pull request #2812 from Rachid-Koucha/patch-7

/etc/resolv.conf grows indefinitely

5 years ago/etc/resolv.conf grows indefinitely
Rachid Koucha [Sun, 27 Jan 2019 12:46:48 +0000 (13:46 +0100)]
/etc/resolv.conf grows indefinitely

This file grows indefinitely : upon each DHCP lease renew,
the "nameserver ..dns..." line is added at the end of the file.
Make a "grep" in the file to make sure that the same line
does not already exist.

Signed-off-by: Rachid Koucha <rachid.koucha@gmail.com>
5 years agoconf: append 0 0 to nesting helpers mount entries
Christian Brauner [Sun, 27 Jan 2019 12:14:24 +0000 (13:14 +0100)]
conf: append 0 0 to nesting helpers mount entries

Otherwise musl's getmntent_r() parser will fail.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2811 from Rachid-Koucha/patch-6
Christian Brauner [Sun, 27 Jan 2019 12:07:03 +0000 (13:07 +0100)]
Merge pull request #2811 from Rachid-Koucha/patch-6

Create /var/run

5 years agoCreate /var/run
Rachid Koucha [Sun, 27 Jan 2019 11:23:58 +0000 (12:23 +0100)]
Create /var/run

Some programs like "who" need this directory
to work (this permits the of /var/run/utmp file).

Signed-off-by: Rachid Koucha <rachid.koucha@gmail.com>
5 years agoMerge pull request #2810 from Rachid-Koucha/patch-6
Christian Brauner [Sun, 27 Jan 2019 11:11:47 +0000 (12:11 +0100)]
Merge pull request #2810 from Rachid-Koucha/patch-6

Use BUSYBOX_EXE variable in configure_busybox()

5 years agoUse BUSYBOX_EXE variable in configure_busybox()
Rachid Koucha [Sun, 27 Jan 2019 10:51:57 +0000 (11:51 +0100)]
Use BUSYBOX_EXE variable in configure_busybox()

As "which busybox" is stored in BUSYBOX_EXE
global variable at startup, use it wherever it is
needed.

Signed-off-by: Rachid Koucha <rachid.koucha@gmail.com>
5 years agoconf: check for successful mount entry parse
Christian Brauner [Sun, 27 Jan 2019 01:22:43 +0000 (02:22 +0100)]
conf: check for successful mount entry parse

Since liblxc is completely in control of the mount entry file we should
only consider a parse successful when EOF is reached.

Closes #2798.

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2809 from Rachid-Koucha/patch-6
Christian Brauner [Sun, 27 Jan 2019 09:14:26 +0000 (10:14 +0100)]
Merge pull request #2809 from Rachid-Koucha/patch-6

Installation of default.script for udhcpc

5 years agoInstallation of default.script for udhcpc
Rachid Koucha [Sun, 27 Jan 2019 02:38:36 +0000 (03:38 +0100)]
Installation of default.script for udhcpc

The busybox template installs default.script in /usr/share/udhcpc/.
But the pathname of "default.script" may vary from one busybox
build to another. As the pathname is displayed in udhcpc's help,
grab it from it.

Signed-off-by: Rachid Koucha <rachid.koucha@gmail.com>
5 years agoMerge pull request #2744 from adamkasztenny/patch-1
Christian Brauner [Sun, 27 Jan 2019 00:56:23 +0000 (01:56 +0100)]
Merge pull request #2744 from adamkasztenny/patch-1

Add template-options to help output

5 years agoMerge pull request #2804 from Rachid-Koucha/patch-4
Christian Brauner [Sun, 27 Jan 2019 00:46:25 +0000 (01:46 +0100)]
Merge pull request #2804 from Rachid-Koucha/patch-4

Avoid hardcoded string length

5 years agoAvoid hardcoded string length
Rachid Koucha [Sun, 27 Jan 2019 00:07:38 +0000 (01:07 +0100)]
Avoid hardcoded string length

Use strlen() on "state" variable instead of harcoded
value 6.

Signed-off-by: Rachid Koucha <rachid.koucha@gmail.com>
5 years agoMerge pull request #2803 from Rachid-Koucha/patch-4
Christian Brauner [Sat, 26 Jan 2019 23:43:32 +0000 (00:43 +0100)]
Merge pull request #2803 from Rachid-Koucha/patch-4

Avoid risk of "too far memory read"

5 years agoMerge pull request #2802 from Rachid-Koucha/patch-3
Christian Brauner [Sat, 26 Jan 2019 23:26:00 +0000 (00:26 +0100)]
Merge pull request #2802 from Rachid-Koucha/patch-3

Avoid double lxc-freeze/unfreeze

5 years agoAvoid risk of "too far memory read"
Rachid Koucha [Sat, 26 Jan 2019 23:10:39 +0000 (00:10 +0100)]
Avoid risk of "too far memory read"

As we call "lxc_add_state_client(fd, handler, (lxc_state_t *)req->data)"
which supposes that the last parameter is a table of MAX_STATE
entries when calling memcpy():
memcpy(newclient->states, states, sizeof(newclient->states))

Signed-off-by: Rachid Koucha <rachid.koucha@gmail.com>
5 years agoMerge pull request #2801 from Rachid-Koucha/patch-2
Christian Brauner [Sat, 26 Jan 2019 22:48:59 +0000 (23:48 +0100)]
Merge pull request #2801 from Rachid-Koucha/patch-2

Update freezer.c

5 years agoAvoid double lxc-freeze/unfreeze
Rachid Koucha [Sat, 26 Jan 2019 22:46:34 +0000 (23:46 +0100)]
Avoid double lxc-freeze/unfreeze

If we call lxc-freeze multiple times for an already frozen container, LXC
triggers useless freezing by writing into the "freezer.state" cgroup file.
This is the same when we call lxc-unfreeze multiple times.
Checking the current state with a LXC_CMD_GET_STATE
(calling c->state) would permit to check if the container is FROZEN
or not.

Signed-off-by: Rachid Koucha <rachid.koucha@gmail.com>
5 years agoUpdate freezer.c
Rachid Koucha [Sat, 26 Jan 2019 22:27:07 +0000 (23:27 +0100)]
Update freezer.c

Suppressed hard coded values for state and array's maximum index.

Signed-off-by: Rachid Koucha <rachid.koucha@gmail.com>
5 years agoMerge pull request #2794 from brauner/2019-01-21/revert_seccomp_fuckup
Wolfgang Bumiller [Mon, 21 Jan 2019 14:33:05 +0000 (15:33 +0100)]
Merge pull request #2794 from brauner/2019-01-21/revert_seccomp_fuckup

Revert "seccomp: add rules for specified architecture only"

5 years agoRevert "seccomp: add rules for specified architecture only"
Christian Brauner [Mon, 21 Jan 2019 13:58:43 +0000 (14:58 +0100)]
Revert "seccomp: add rules for specified architecture only"

This reverts commit f1bcfc796e0a4a04b36284f6261afff59123b1aa.

The reverted branch breaks starting all seccomp confined containers. Not
even a containers with our standard seccomp profile starts correctly.
This is strong evidence that these changes have never been tested even
with a standard workload. That is unacceptable!

We are still happy to merge that feature but going forward we want tests
that verify that standard workloads and new features work correctly.
seccomp is a crucial part of our security story and I will not let the
be compromised by missing tests!

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
5 years agoMerge pull request #2786 from lifeng68/fix_seccomp
Christian Brauner [Mon, 21 Jan 2019 11:18:25 +0000 (13:18 +0200)]
Merge pull request #2786 from lifeng68/fix_seccomp

seccomp: add rules for specified architecture only

5 years agoseccomp: add rules for specified architecture only
LiFeng [Wed, 16 Jan 2019 10:07:59 +0000 (05:07 -0500)]
seccomp: add rules for specified architecture only

If the architecture is specified in the seccomp configuration, like:
```
2
whitelist errno 1
[x86_64]
accept allow
accept4 allow
```
We shoud add rules only for amd64 instead of add rules for
x32/i386/amd64.

1. If the [arch] was not specified in seccomp config, add seccomp rules
for all all compat architectures.
2. If the [arch] specified in seccomp config irrelevant to native host
arch, the rules will be ignored.
3. If specified [all] in seccomp config, add seccomp rules for all
compat architectures.
4. If specified [arch] as same as native host arch, add seccomp rules
for the native host arch.
5. If specified [arch] was not native host arch, but compat to host
arch, add seccomp rules for the specified arch only, NOT add seccomp
rules for native arch.

Signed-off-by: LiFeng <lifeng68@huawei.com>
5 years agoMerge pull request #2792 from kubiko/fix-android-hooks
Christian Brauner [Fri, 18 Jan 2019 09:04:48 +0000 (11:04 +0200)]
Merge pull request #2792 from kubiko/fix-android-hooks

Fixing hooks functionality Android where 'sh' is placed under /system

5 years agoMerge pull request #2791 from kubiko/handle-android-loop
Christian Brauner [Fri, 18 Jan 2019 09:04:27 +0000 (11:04 +0200)]
Merge pull request #2791 from kubiko/handle-android-loop

Handle alternative loop device location on Android

5 years agoHandle alternative loop device location on Android
ondra [Fri, 11 Jan 2019 14:45:38 +0000 (14:45 +0000)]
Handle alternative loop device location on Android

Signed-off-by: ondra <ondrak@localhost.localdomain>
5 years agoFixing hooks functionality Android where 'sh' is placed under /system/bin
ondra [Fri, 11 Jan 2019 16:42:13 +0000 (16:42 +0000)]
Fixing hooks functionality Android where 'sh' is placed under /system/bin

Signed-off-by: ondra <ondrak@localhost.localdomain>
5 years agoMerge pull request #2788 from tanyifeng/fix_mem_leak
Christian Brauner [Thu, 17 Jan 2019 09:50:11 +0000 (11:50 +0200)]
Merge pull request #2788 from tanyifeng/fix_mem_leak

conf.c: fix memory leak and mount error

5 years agoMerge pull request #2789 from lifeng68/fix_memory_leak
Christian Brauner [Thu, 17 Jan 2019 09:49:41 +0000 (11:49 +0200)]
Merge pull request #2789 from lifeng68/fix_memory_leak

Fix memory leak in cgroup_exit

5 years agoFix memory leak in cgroup_exit
LiFeng [Thu, 17 Jan 2019 10:48:16 +0000 (05:48 -0500)]
Fix memory leak in cgroup_exit

Add free memory pointed by struct cgroup_ops *ops

Signed-off-by: LiFeng <lifeng68@huawei.com>