conf: idmaptool fixes

Fixes: #3777
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

confile: make lxc_get_config() and lxc_get_config_net() always return…

Introduce the concept of an unsupported config item.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

github: Try to fix action naming

Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>

confile & log: fixes

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

oss-fuzz: fuzz lxc_config_define_add and lxc_config_define_load

templates/*.in: fixed PATH handling with spaces

if $PATH already contains a path with a space the append of the
default directories in all template scripts fails with an error
like the following:

/usr/share/lxc/templates/lxc-download: 69: export: (x86)/NVIDIA: bad
variable name
Signed-off-by: Christian Ratzenhofer <christian.ratzenhofer@cdnm.at>

conf: fix setups where /dev is outside of LXC's control

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Fixes: #3770
Suggested-by: Ruben Jenster <r.jenster@drachenfels.de>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

lsm: fixes

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Link: https://github.com/lxc/lxc/issues/3765Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

confile: fix lxc.namespace.share.[identifier]

Link: https://github.com/lxc/lxc/pull/3763/files#r606089660Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

fixes: Makefile, lxc-user-nic, simplify get_network_config_ops()

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

It's the only place where it is still used.
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

oss-fuzz: reject giant configs early

Signed-off-by: Evgeny Vereshchagin <evvers@ya.ru>

```
2021-04-02T05:45:54.9410345Z ==13==ERROR: LeakSanitizer: detected memory leaks
2021-04-02T05:45:54.9410737Z
2021-04-02T05:45:54.9411488Z Direct leak of 16 byte(s) in 1 object(s) allocated from:
2021-04-02T05:45:54.9412556Z     #0 0x54d752 in calloc /src/llvm-project/compiler-rt/lib/asan/asan_malloc_linux.cpp:154:3
2021-04-02T05:45:54.9413360Z     #1 0x583795 in parse_new_conf_line /src/lxc/src/lxc/confile.c:3048:8
2021-04-02T05:45:54.9414057Z     #2 0x582f1a in lxc_config_define_add /src/lxc/src/lxc/confile.c:3090:15
2021-04-02T05:45:54.9415352Z     #3 0x5810fa in LLVMFuzzerTestOneInput /src/lxc/src/tests/fuzz-lxc-define-load.c:30:6
2021-04-02T05:45:54.9419212Z     #4 0x483b93 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:599:15
2021-04-02T05:45:54.9421819Z     #5 0x48309a in fuzzer::Fuzzer::RunOne(unsigned char const*, unsigned long, bool, fuzzer::InputInfo*, bool, bool*) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:505:3
2021-04-02T05:45:54.9424205Z     #6 0x485474 in fuzzer::Fuzzer::ReadAndExecuteSeedCorpora(std::__Fuzzer::vector<fuzzer::SizedFile, fuzzer::fuzzer_allocator<fuzzer::SizedFile> >&) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:814:7
2021-04-02T05:45:54.9426658Z     #7 0x485689 in fuzzer::Fuzzer::Loop(std::__Fuzzer::vector<fuzzer::SizedFile, fuzzer::fuzzer_allocator<fuzzer::SizedFile> >&) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerLoop.cpp:845:3
2021-04-02T05:45:54.9428616Z     #8 0x473717 in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerDriver.cpp:906:6
2021-04-02T05:45:54.9429989Z     #9 0x49f572 in main /src/llvm-project/compiler-rt/lib/fuzzer/FuzzerMain.cpp:20:10
2021-04-02T05:45:54.9433312Z     #10 0x7fa96041b83f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2083f)
2021-04-02T05:45:54.9433795Z
2021-04-02T05:45:54.9434661Z DEDUP_TOKEN: calloc--parse_new_conf_line--lxc_config_define_add
2021-04-02T05:45:54.9435483Z SUMMARY: AddressSanitizer: 16 byte(s) leaked in 1 allocation(s).
2021-04-02T05:45:54.9435958Z
2021-04-02T05:45:54.9436404Z INFO: a leak has been found in the initial corpus.
```
Signed-off-by: Evgeny Vereshchagin <evvers@ya.ru>

Signed-off-by: Evgeny Vereshchagin <evvers@ya.ru>

build-system: make it compatible with ASan/UBsan/Msan

confile: cap to last bit in set_config_net_ipv4_address()

Link: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32708Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

oss-fuzz.sh: put the "lxc.net" keys to the seed corpus as well

string_utils: switch to path_simplify()

Link: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=32689Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>

confile: don't jump into the global table twice