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-rw-r--r--src/machine/machinectl.c185
1 files changed, 153 insertions, 32 deletions
diff --git a/src/machine/machinectl.c b/src/machine/machinectl.c
index 66ed41087c..8e75508444 100644
--- a/src/machine/machinectl.c
+++ b/src/machine/machinectl.c
@@ -55,6 +55,7 @@
#include "process-util.h"
#include "terminal-util.h"
#include "signal-util.h"
+#include "env-util.h"
static char **arg_property = NULL;
static bool arg_all = false;
@@ -75,6 +76,8 @@ static bool arg_force = false;
static ImportVerify arg_verify = IMPORT_VERIFY_SIGNATURE;
static const char* arg_dkr_index_url = NULL;
static const char* arg_format = NULL;
+static const char *arg_uid = NULL;
+static char **arg_setenv = NULL;
static void pager_open_if_enabled(void) {
@@ -1170,20 +1173,67 @@ static int on_machine_removed(sd_bus_message *m, void *userdata, sd_bus_error *r
return 0;
}
+static int process_forward(sd_event *event, PTYForward **forward, int master, bool ignore_vhangup, const char *name) {
+ char last_char = 0;
+ bool machine_died;
+ int ret = 0, r;
+
+ assert(event);
+ assert(master >= 0);
+ assert(name);
+
+ assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGWINCH, SIGTERM, SIGINT, -1) >= 0);
+
+ log_info("Connected to machine %s. Press ^] three times within 1s to exit session.", name);
+
+ sd_event_add_signal(event, NULL, SIGINT, NULL, NULL);
+ sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL);
+
+ r = pty_forward_new(event, master, ignore_vhangup, false, forward);
+ if (r < 0)
+ return log_error_errno(r, "Failed to create PTY forwarder: %m");
+
+ r = sd_event_loop(event);
+ if (r < 0)
+ return log_error_errno(r, "Failed to run event loop: %m");
+
+ pty_forward_get_last_char(*forward, &last_char);
+
+ machine_died =
+ ignore_vhangup &&
+ pty_forward_get_ignore_vhangup(*forward) == 0;
+
+ *forward = pty_forward_free(*forward);
+
+ if (last_char != '\n')
+ fputc('\n', stdout);
+
+ if (machine_died)
+ log_info("Machine %s terminated.", name);
+ else
+ log_info("Connection to machine %s terminated.", name);
+
+ sd_event_get_exit_code(event, &ret);
+ return ret;
+}
+
static int login_machine(int argc, char *argv[], void *userdata) {
+ _cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL;
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
- _cleanup_bus_slot_unref_ sd_bus_slot *slot = NULL;
_cleanup_(pty_forward_freep) PTYForward *forward = NULL;
+ _cleanup_bus_slot_unref_ sd_bus_slot *slot = NULL;
_cleanup_event_unref_ sd_event *event = NULL;
- int master = -1, r, ret = 0;
+ int master = -1, r;
sd_bus *bus = userdata;
const char *pty, *match;
- char last_char = 0;
- bool machine_died;
assert(bus);
+ if (!strv_isempty(arg_setenv) || arg_uid) {
+ log_error("--setenv= and --uid= are not supported for 'login'. Use 'shell' instead.");
+ return -EINVAL;
+ }
+
if (arg_transport != BUS_TRANSPORT_LOCAL &&
arg_transport != BUS_TRANSPORT_MACHINE) {
log_error("Login only supported on local machines.");
@@ -1201,13 +1251,13 @@ static int login_machine(int argc, char *argv[], void *userdata) {
return log_error_errno(r, "Failed to attach bus to event loop: %m");
match = strjoina("type='signal',"
- "sender='org.freedesktop.machine1',"
- "path='/org/freedesktop/machine1',",
- "interface='org.freedesktop.machine1.Manager',"
- "member='MachineRemoved',"
- "arg0='",
- argv[1],
- "'");
+ "sender='org.freedesktop.machine1',"
+ "path='/org/freedesktop/machine1',",
+ "interface='org.freedesktop.machine1.Manager',"
+ "member='MachineRemoved',"
+ "arg0='",
+ argv[1],
+ "'");
r = sd_bus_add_match(bus, &slot, match, on_machine_removed, &forward);
if (r < 0)
@@ -1223,7 +1273,7 @@ static int login_machine(int argc, char *argv[], void *userdata) {
&reply,
"s", argv[1]);
if (r < 0) {
- log_error("Failed to get machine PTY: %s", bus_error_message(&error, -r));
+ log_error("Failed to get login PTY: %s", bus_error_message(&error, -r));
return r;
}
@@ -1231,36 +1281,83 @@ static int login_machine(int argc, char *argv[], void *userdata) {
if (r < 0)
return bus_log_parse_error(r);
- assert_se(sigprocmask_many(SIG_BLOCK, NULL, SIGWINCH, SIGTERM, SIGINT, -1) >= 0);
+ return process_forward(event, &forward, master, true, argv[1]);
+}
- log_info("Connected to machine %s. Press ^] three times within 1s to exit session.", argv[1]);
+static int shell_machine(int argc, char *argv[], void *userdata) {
+ _cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL;
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(pty_forward_freep) PTYForward *forward = NULL;
+ _cleanup_bus_slot_unref_ sd_bus_slot *slot = NULL;
+ _cleanup_event_unref_ sd_event *event = NULL;
+ int master = -1, r;
+ sd_bus *bus = userdata;
+ const char *pty, *match;
- sd_event_add_signal(event, NULL, SIGINT, NULL, NULL);
- sd_event_add_signal(event, NULL, SIGTERM, NULL, NULL);
+ assert(bus);
+
+ if (arg_transport != BUS_TRANSPORT_LOCAL &&
+ arg_transport != BUS_TRANSPORT_MACHINE) {
+ log_error("Shell only supported on local machines.");
+ return -EOPNOTSUPP;
+ }
+
+ polkit_agent_open_if_enabled();
- r = pty_forward_new(event, master, true, false, &forward);
+ r = sd_event_default(&event);
if (r < 0)
- return log_error_errno(r, "Failed to create PTY forwarder: %m");
+ return log_error_errno(r, "Failed to get event loop: %m");
- r = sd_event_loop(event);
+ r = sd_bus_attach_event(bus, event, 0);
if (r < 0)
- return log_error_errno(r, "Failed to run event loop: %m");
+ return log_error_errno(r, "Failed to attach bus to event loop: %m");
- pty_forward_get_last_char(forward, &last_char);
- machine_died = pty_forward_get_ignore_vhangup(forward) == 0;
+ match = strjoina("type='signal',"
+ "sender='org.freedesktop.machine1',"
+ "path='/org/freedesktop/machine1',",
+ "interface='org.freedesktop.machine1.Manager',"
+ "member='MachineRemoved',"
+ "arg0='",
+ argv[1],
+ "'");
- forward = pty_forward_free(forward);
+ r = sd_bus_add_match(bus, &slot, match, on_machine_removed, &forward);
+ if (r < 0)
+ return log_error_errno(r, "Failed to add machine removal match: %m");
- if (last_char != '\n')
- fputc('\n', stdout);
+ r = sd_bus_message_new_method_call(
+ bus,
+ &m,
+ "org.freedesktop.machine1",
+ "/org/freedesktop/machine1",
+ "org.freedesktop.machine1.Manager",
+ "OpenMachineShell");
+ if (r < 0)
+ return bus_log_create_error(r);
- if (machine_died)
- log_info("Machine %s terminated.", argv[1]);
- else
- log_info("Connection to machine %s terminated.", argv[1]);
+ r = sd_bus_message_append(m, "sss", argv[1], arg_uid, argv[2]);
+ if (r < 0)
+ return bus_log_create_error(r);
- sd_event_get_exit_code(event, &ret);
- return ret;
+ r = sd_bus_message_append_strv(m, strv_length(argv + 2) <= 1 ? NULL : argv + 2);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_message_append_strv(m, arg_setenv);
+ if (r < 0)
+ return bus_log_create_error(r);
+
+ r = sd_bus_call(bus, m, 0, &error, &reply);
+ if (r < 0) {
+ log_error("Failed to get shell PTY: %s", bus_error_message(&error, -r));
+ return r;
+ }
+
+ r = sd_bus_message_read(reply, "hs", &master, &pty);
+ if (r < 0)
+ return bus_log_parse_error(r);
+
+ return process_forward(event, &forward, master, false, argv[1]);
}
static int remove_image(int argc, char *argv[], void *userdata) {
@@ -2314,6 +2411,8 @@ static int help(int argc, char *argv[], void *userdata) {
" -l --full Do not ellipsize output\n"
" --kill-who=WHO Who to send signal to\n"
" -s --signal=SIGNAL Which signal to send\n"
+ " --uid=USER Specify user ID to invoke shell as\n"
+ " --setenv=VAR=VALUE Add an environment variable for shell\n"
" --read-only Create read-only bind mount\n"
" --mkdir Create directory before bind mounting, if missing\n"
" -n --lines=INTEGER Number of journal entries to show\n"
@@ -2331,6 +2430,7 @@ static int help(int argc, char *argv[], void *userdata) {
" show NAME... Show properties of one or more VMs/containers\n"
" start NAME... Start container as a service\n"
" login NAME Get a login prompt on a container\n"
+ " shell NAME [COMMAND...] Invoke a shell (or other command) in a container\n"
" enable NAME... Enable automatic container start at boot\n"
" disable NAME... Disable automatic container start at boot\n"
" poweroff NAME... Power off one or more containers\n"
@@ -2378,6 +2478,8 @@ static int parse_argv(int argc, char *argv[]) {
ARG_FORCE,
ARG_DKR_INDEX_URL,
ARG_FORMAT,
+ ARG_UID,
+ ARG_SETENV,
};
static const struct option options[] = {
@@ -2402,6 +2504,8 @@ static int parse_argv(int argc, char *argv[]) {
{ "force", no_argument, NULL, ARG_FORCE },
{ "dkr-index-url", required_argument, NULL, ARG_DKR_INDEX_URL },
{ "format", required_argument, NULL, ARG_FORMAT },
+ { "uid", required_argument, NULL, ARG_UID },
+ { "setenv", required_argument, NULL, ARG_SETENV },
{}
};
@@ -2532,6 +2636,21 @@ static int parse_argv(int argc, char *argv[]) {
arg_format = optarg;
break;
+ case ARG_UID:
+ arg_uid = optarg;
+ break;
+
+ case ARG_SETENV:
+ if (!env_assignment_is_valid(optarg)) {
+ log_error("Environment assignment invalid: %s", optarg);
+ return -EINVAL;
+ }
+
+ r = strv_extend(&arg_setenv, optarg);
+ if (r < 0)
+ return log_oom();
+ break;
+
case '?':
return -EINVAL;
@@ -2557,6 +2676,7 @@ static int machinectl_main(int argc, char *argv[], sd_bus *bus) {
{ "poweroff", 2, VERB_ANY, 0, poweroff_machine },
{ "kill", 2, VERB_ANY, 0, kill_machine },
{ "login", 2, 2, 0, login_machine },
+ { "shell", 2, VERB_ANY, 0, shell_machine },
{ "bind", 3, 4, 0, bind_mount },
{ "copy-to", 3, 4, 0, copy_files },
{ "copy-from", 3, 4, 0, copy_files },
@@ -2610,6 +2730,7 @@ finish:
polkit_agent_close();
strv_free(arg_property);
+ strv_free(arg_setenv);
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-10 09:56:58 +0000