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busctl: add new --augment-creds= switch for controlling whether shown credential data shall be augment with data from /proc

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This commit is contained in:
Lennart Poettering 2014-11-24 21:53:29 +01:00
parent 705a415f68
commit 40ed1a4574
2 changed files with 40 additions and 6 deletions
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14
man/busctl.xml
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@ -232,6 +232,20 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>.
</listitem>
</varlistentry>
<varlistentry>
<term><option>--augment-creds=</option><replaceable>BOOL</replaceable></term>
<listitem>
<para>Controls whether credential data reported by
<command>list</command> or <command>status</command> shall
be augmented with data from
<filename>/proc</filename>. When this is turned on the data
shown is possibly inconsistent, as the data read from
<filename>/proc</filename> might be more recent than rest of
the credential information. Defaults to <literal>yes</literal>.</para>
</listitem>
</varlistentry>
<xi:include href="user-system-options.xml" xpointer="user" />
<xi:include href="user-system-options.xml" xpointer="system" />
<xi:include href="user-system-options.xml" xpointer="host" />

32
src/libsystemd/sd-bus/busctl.c
View File

@ -56,6 +56,7 @@ static bool arg_verbose = false;
static bool arg_expect_reply = true;
static bool arg_auto_start = true;
static bool arg_allow_interactive_authorization = true;
static bool arg_augment_creds = true;
static usec_t arg_timeout = 0;
static void pager_open_if_enabled(void) {
@ -161,10 +162,12 @@ static int list_bus_names(sd_bus *bus, char **argv) {
printf("%-*s", (int) max_i, *i);
r = sd_bus_get_name_creds(bus, *i,
SD_BUS_CREDS_UID|SD_BUS_CREDS_PID|SD_BUS_CREDS_COMM|
SD_BUS_CREDS_UNIQUE_NAME|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_SESSION|
SD_BUS_CREDS_DESCRIPTION, &creds);
r = sd_bus_get_name_creds(
bus, *i,
(arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) |
SD_BUS_CREDS_UID|SD_BUS_CREDS_PID|SD_BUS_CREDS_COMM|
SD_BUS_CREDS_UNIQUE_NAME|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_SESSION|
SD_BUS_CREDS_DESCRIPTION, &creds);
if (r >= 0) {
const char *unique, *session, *unit, *cn;
pid_t pid;
@ -1179,7 +1182,11 @@ static int status(sd_bus *bus, char *argv[]) {
r = parse_pid(argv[1], &pid);
if (r < 0)
r = sd_bus_get_name_creds(bus, argv[1], _SD_BUS_CREDS_ALL, &creds);
r = sd_bus_get_name_creds(
bus,
argv[1],
(arg_augment_creds ? SD_BUS_CREDS_AUGMENT : 0) | _SD_BUS_CREDS_ALL,
&creds);
else
r = sd_bus_creds_new_from_pid(&creds, pid, _SD_BUS_CREDS_ALL);
@ -1664,7 +1671,8 @@ static int help(void) {
" --auto-start=BOOL Auto-start destination service\n"
" --allow-interactive-authorization=BOOL\n"
" Allow interactive authorization for operation\n"
" --timeout=SECS Maximum time to wait for method call completion\n\n"
" --timeout=SECS Maximum time to wait for method call completion\n"
" --augment-creds=BOOL Extend credential data with data read from /proc/$PID\n\n"
"Commands:\n"
" list List bus names\n"
" status SERVICE Show service name status\n"
@ -1705,6 +1713,7 @@ static int parse_argv(int argc, char *argv[]) {
ARG_AUTO_START,
ARG_ALLOW_INTERACTIVE_AUTHORIZATION,
ARG_TIMEOUT,
ARG_AUGMENT_CREDS,
};
static const struct option options[] = {
@ -1730,6 +1739,7 @@ static int parse_argv(int argc, char *argv[]) {
{ "auto-start", required_argument, NULL, ARG_AUTO_START },
{ "allow-interactive-authorization", required_argument, NULL, ARG_ALLOW_INTERACTIVE_AUTHORIZATION },
{ "timeout", required_argument, NULL, ARG_TIMEOUT },
{ "augment-creds",required_argument, NULL, ARG_AUGMENT_CREDS},
{},
};
@ -1872,6 +1882,16 @@ static int parse_argv(int argc, char *argv[]) {
break;
case ARG_AUGMENT_CREDS:
r = parse_boolean(optarg);
if (r < 0) {
log_error("Failed to parse --augment-creds= parameter.");
return r;
}
arg_augment_creds = !!r;
break;
case '?':
return -EINVAL;