diff options
| author | Ismo Puustinen <ismo.puustinen@intel.com> | 2015-12-31 14:54:44 +0200 |
|---|---|---|
| committer | Ismo Puustinen <ismo.puustinen@intel.com> | 2016-01-12 12:14:50 +0200 |
| commit | 755d4b67a471ed1a3472b8536cb51315d4e4e3c1 (patch) | |
| tree | 8a0d604514b069463816768a326fb4a6f4f947d7 /src/core/load-fragment.c | |
| parent | a103496ca585e22bb5e386e3238b468d133f5659 (diff) | |
capabilities: added support for ambient capabilities.
This patch adds support for ambient capabilities in service files. The
idea with ambient capabilities is that the execed processes can run with
non-root user and get some inherited capabilities, without having any
need to add the capabilities to the executable file.
You need at least Linux 4.3 to use ambient capabilities. SecureBit
keep-caps is automatically added when you use ambient capabilities and
wish to change the user.
An example system service file might look like this:
[Unit]
Description=Service for testing caps
[Service]
ExecStart=/usr/bin/sleep 10000
User=nobody
AmbientCapabilities=CAP_NET_ADMIN CAP_NET_RAW
After starting the service it has these capabilities:
CapInh: 0000000000003000
CapPrm: 0000000000003000
CapEff: 0000000000003000
CapBnd: 0000003fffffffff
CapAmb: 0000000000003000
Diffstat (limited to 'src/core/load-fragment.c')
| -rw-r--r-- | src/core/load-fragment.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c index da14337ba8..d3880b4e3c 100644 --- a/src/core/load-fragment.c +++ b/src/core/load-fragment.c @@ -1054,6 +1054,7 @@ int config_parse_capability_set( if (strcmp(lvalue, "CapabilityBoundingSet") == 0) initial = CAP_ALL; /* initialized to all bits on */ + /* else "AmbientCapabilities" initialized to all bits off */ p = rvalue; for (;;) { @@ -1072,7 +1073,7 @@ int config_parse_capability_set( cap = capability_from_name(word); if (cap < 0) { - log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse capability in bounding set, ignoring: %s", word); + log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse capability in bounding/ambient set, ignoring: %s", word); continue; } |