35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include <errno.h>

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering#include <string.h>

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include <arpa/inet.h>

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include <sys/mount.h>

b5efdb8af40ea759a1ea584c1bc44ecc81dd00ceLennart Poettering

3b7124a8db56ed57525b9ecfd19cfdc8c9facba0Lennart Poettering#include <libgen.h>

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#undef basename

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering

3ffd4af22052963e7a29431721ee204e634bea75Lennart Poettering#include "bus-util.h"

40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen#include "bus-label.h"

0b452006de98294d1690f045f6ea2f7f6630ec3bRonny Chevalier#include "strv.h"

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "bus-common-errors.h"

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "copy.h"

15a5e95075a7f6007dd97b2a165c8ed16fe683dfLennart Poettering#include "fileio.h"

07630cea1f3a845c09309f197ac7c4f11edd3b62Lennart Poettering#include "in-addr-util.h"

7ccbd1ae843d77275f2c542582a9a80e5e058a70Lennart Poettering#include "local-addresses.h"

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering#include "path-util.h"

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering#include "mkdir.h"

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering#include "bus-internal.h"

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering#include "machine.h"

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering#include "machine-dbus.h"

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek

46b131574fdd7d77c15a0919ca9010cad7aa6ac7Lennart Poetteringstatic int property_get_id(

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek sd_bus *bus,

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek const char *path,

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek const char *interface,

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek const char *property,

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek sd_bus_message *reply,

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek void *userdata,

46b131574fdd7d77c15a0919ca9010cad7aa6ac7Lennart Poettering sd_bus_error *error) {

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek

f8294e4175918117ca6c131720bcf287eadcd029Josh Triplett Machine *m = userdata;

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(reply);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_append_array(reply, 'y', &m->id, 16);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 1;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringstatic int property_get_state(

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering sd_bus *bus,

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering const char *path,

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering const char *interface,

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering const char *property,

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering sd_bus_message *reply,

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering void *userdata,

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Machine *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering const char *state;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(reply);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering state = machine_state_to_string(machine_get_state(m));

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_append_basic(reply, 's', state);

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering if (r < 0)

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering return 1;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}

ccf23ad5faf228d450d263d7291156a948b61af2Christian Seiler

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringstatic int property_get_netif(

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering sd_bus *bus,

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering const char *path,

ccf23ad5faf228d450d263d7291156a948b61af2Christian Seiler const char *interface,

ccf23ad5faf228d450d263d7291156a948b61af2Christian Seiler const char *property,

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering sd_bus_message *reply,

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering void *userdata,

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Machine *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering assert(reply);

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering assert_cc(sizeof(int) == sizeof(int32_t));

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_append_array(reply, 'i', m->netif, m->n_netif * sizeof(int));

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

56f64d95763a799ba4475daf44d8e9f72a1bd474Michal Schmidt return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return 1;

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering}

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringstatic BUS_DEFINE_PROPERTY_GET_ENUM(property_get_class, machine_class, MachineClass);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringint bus_machine_method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Machine *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(message);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = machine_stop(m);

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

3b97fcbd28f92a1e51887fef5de8844a89bde523Lennart Poettering

5ffa8c818120e35c89becd938d160235c069dd12Zbigniew Jędrzejewski-Szmek return sd_bus_reply_method_return(message, NULL);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering}

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringint bus_machine_method_kill(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Machine *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering const char *swho;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int32_t signo;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering KillWho who;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(message);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_read(message, "si", &swho, &signo);

5ffa8c818120e35c89becd938d160235c069dd12Zbigniew Jędrzejewski-Szmek if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (isempty(swho))

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering who = KILL_ALL;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering else {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering who = kill_who_from_string(swho);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (who < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid kill parameter '%s'", swho);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (signo <= 0 || signo >= _NSIG)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = machine_kill(m, who, signo);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return sd_bus_reply_method_return(message, NULL);

5ffa8c818120e35c89becd938d160235c069dd12Zbigniew Jędrzejewski-Szmek}

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringint bus_machine_method_get_addresses(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_close_pair_ int pair[2] = { -1, -1 };

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_free_ char *us = NULL, *them = NULL;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_close_ int netns_fd = -1;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Machine *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering const char *p;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering siginfo_t si;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering pid_t child;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(message);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (m->class != MACHINE_CONTAINER)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Requesting IP address data is only supported on container machines.");

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = readlink_malloc("/proc/self/ns/net", &us);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering p = procfs_file_alloca(m->leader, "ns/net");

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = readlink_malloc(p, &them);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

e88baee88fad8bc59d33b55a7a2d640ef9e16cd6Zbigniew Jędrzejewski-Szmek return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (streq(us, them))

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return sd_bus_error_setf(error, BUS_ERROR_NO_PRIVATE_NETWORKING, "Machine %s does not use private networking", m->name);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = namespace_open(m->leader, NULL, NULL, &netns_fd, NULL);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, pair) < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return -errno;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering child = fork();

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (child < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m");

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

e88baee88fad8bc59d33b55a7a2d640ef9e16cd6Zbigniew Jędrzejewski-Szmek if (child == 0) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_free_ struct local_address *addresses = NULL;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering struct local_address *a;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int i, n;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering pair[0] = safe_close(pair[0]);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = namespace_enter(-1, -1, netns_fd, -1);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _exit(EXIT_FAILURE);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering n = local_addresses(NULL, 0, AF_UNSPEC, &addresses);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (n < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _exit(EXIT_FAILURE);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering for (a = addresses, i = 0; i < n; a++, i++) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering struct iovec iov[2] = {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering { .iov_base = &a->family, .iov_len = sizeof(a->family) },

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering { .iov_base = &a->address, .iov_len = FAMILY_ADDRESS_SIZE(a->family) },

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering };

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = writev(pair[1], iov, 2);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _exit(EXIT_FAILURE);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering pair[1] = safe_close(pair[1]);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _exit(EXIT_SUCCESS);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

ec5ff4445cca6a1d786b8da36cf6fe0acc0b94c8Filipe Brandenburger

ec5ff4445cca6a1d786b8da36cf6fe0acc0b94c8Filipe Brandenburger pair[1] = safe_close(pair[1]);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

e88baee88fad8bc59d33b55a7a2d640ef9e16cd6Zbigniew Jędrzejewski-Szmek r = sd_bus_message_new_method_return(message, &reply);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = sd_bus_message_open_container(reply, 'a', "(iay)");

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return r;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering for (;;) {

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering int family;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering ssize_t n;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering union in_addr_union in_addr;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering struct iovec iov[2];

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering struct msghdr mh = {

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering .msg_iov = iov,

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering .msg_iovlen = 2,

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering };

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering iov[0] = (struct iovec) { .iov_base = &family, .iov_len = sizeof(family) };

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering iov[1] = (struct iovec) { .iov_base = &in_addr, .iov_len = sizeof(in_addr) };

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering n = recvmsg(pair[0], &mh, 0);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (n < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return -errno;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if ((size_t) n < sizeof(family))

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering break;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = sd_bus_message_open_container(reply, 'r', "iay");

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return r;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = sd_bus_message_append(reply, "i", family);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return r;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering switch (family) {

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering case AF_INET:

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (n != sizeof(struct in_addr) + sizeof(family))

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return -EIO;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = sd_bus_message_append_array(reply, 'y', &in_addr.in, sizeof(in_addr.in));

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering break;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering case AF_INET6:

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (n != sizeof(struct in6_addr) + sizeof(family))

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return -EIO;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = sd_bus_message_append_array(reply, 'y', &in_addr.in6, sizeof(in_addr.in6));

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering break;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering }

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return r;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = sd_bus_message_close_container(reply);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return r;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering }

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = wait_for_terminate(child, &si);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return sd_bus_error_set_errnof(error, r, "Failed to wait for client: %m");

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Client died abnormally.");

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering r = sd_bus_message_close_container(reply);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering if (r < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return r;

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return sd_bus_send(bus, reply, NULL);

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering}

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poetteringint bus_machine_method_get_os_release(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_close_ int mntns_fd = -1, root_fd = -1;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_close_pair_ int pair[2] = { -1, -1 };

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering _cleanup_strv_free_ char **l = NULL;

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering _cleanup_fclose_ FILE *f = NULL;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering Machine *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering char **k, **v;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering siginfo_t si;

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering pid_t child;

13f5402c6b734ed4c2b3e8b7c3d3bf6d815e7661Aleksander Adamowski int r;

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(bus);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(message);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering assert(m);

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (m->class != MACHINE_CONTAINER)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Requesting OS release data is only supported on container machines.");

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = namespace_open(m->leader, NULL, &mntns_fd, NULL, &root_fd);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

e3bfb7be07d9b1f4ebb12eb22c4c8bcd2a988d51Zbigniew Jędrzejewski-Szmek

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, pair) < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return -errno;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering child = fork();

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (child < 0)

5809560d858f45351856d6fe786a8117306dd0f2Lennart Poettering return sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m");

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (child == 0) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_close_ int fd = -1;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering pair[0] = safe_close(pair[0]);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = namespace_enter(-1, mntns_fd, -1, root_fd);

40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen if (r < 0)

40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen _exit(EXIT_FAILURE);

40b71e89bae4e51768db4dc50ec64c1e9c96eec4Sebastian Thorarensen

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering fd = open("/etc/os-release", O_RDONLY|O_CLOEXEC);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (fd < 0) {

d054f0a4d451120c26494263fc4dc175bfd405b1Daniel Mack fd = open("/usr/lib/os-release", O_RDONLY|O_CLOEXEC);

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering if (fd < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _exit(EXIT_FAILURE);

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering }

d054f0a4d451120c26494263fc4dc175bfd405b1Daniel Mack

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering r = copy_bytes(fd, pair[1], (off_t) -1, false);

8457f8d6ac7adc6c6ef31378e6e7761cce522141Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _exit(EXIT_FAILURE);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering _exit(EXIT_SUCCESS);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering pair[1] = safe_close(pair[1]);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering f = fdopen(pair[0], "re");

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering if (!f)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return -errno;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering pair[0] = -1;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

63c372cb9df3bee01e3bf8cd7f96f336bddda846Lennart Poettering r = load_env_file_pairs(f, "/etc/os-release", NULL, &l);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

968f319679d9069af037240d0c3bcd126181cdacZbigniew Jędrzejewski-Szmek r = wait_for_terminate(child, &si);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return sd_bus_error_set_errnof(error, r, "Failed to wait for client: %m");

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS)

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Client died abnormally.");

3b3154df7e2773332bb814e167187367a0ccae4aLennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_new_method_return(message, &reply);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

46b131574fdd7d77c15a0919ca9010cad7aa6ac7Lennart Poettering r = sd_bus_message_open_container(reply, 'a', "{ss}");

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek if (r < 0)

03ee5c38cb0da193dd08733fb4c0c2809cee6a99Lennart Poettering return r;

b92bea5d2a9481de69bb627a7b442a9f58fca43dZbigniew Jędrzejewski-Szmek

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering STRV_FOREACH_PAIR(k, v, l) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_append(reply, "{ss}", *k, *v);

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt if (r < 0)

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering }

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_close_container(reply);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt return r;

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return sd_bus_send(bus, reply, NULL);

4a61c3e51e96a747c30598d78ee3a24e7c569e9fZbigniew Jędrzejewski-Szmek}

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poetteringint bus_machine_method_open_pty(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering _cleanup_free_ char *pty_name = NULL;

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt _cleanup_close_ int master = -1;

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt Machine *m = userdata;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering int r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

6355e75610a8d47fc3ba5ab8bd442172a2cfe574Lennart Poettering assert(bus);

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering assert(message);

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering assert(m);

56f64d95763a799ba4475daf44d8e9f72a1bd474Michal Schmidt

d682b3a7e7c7c2941a4d3e193f1e330dbc9fae89Lennart Poettering if (m->class != MACHINE_CONTAINER)

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Opening pseudo TTYs is only supported on container machines.");

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering master = openpt_in_namespace(m->leader, O_RDWR|O_NOCTTY|O_CLOEXEC);

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt if (master < 0)

4a62c710b62a5a3c7a8a278b810b9d5b5a0c8f4fMichal Schmidt return master;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

8531ae707d4d0203e83304d4af948b8169a5fce1Lennart Poettering r = ptsname_malloc(master, &pty_name);

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt if (r < 0)

23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41Michal Schmidt return r;

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering

48cef29504b1ffc0df9929f2d8b2af2ad74d2b4aVito Caputo r = sd_bus_message_new_method_return(message, &reply);

48cef29504b1ffc0df9929f2d8b2af2ad74d2b4aVito Caputo if (r < 0)

48cef29504b1ffc0df9929f2d8b2af2ad74d2b4aVito Caputo return r;

48cef29504b1ffc0df9929f2d8b2af2ad74d2b4aVito Caputo

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering r = sd_bus_message_append(reply, "hs", master, pty_name);

35e2e347d38cc2f8bd7c38a0d8a5129f5fbb0ab9Lennart Poettering if (r < 0)

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering return r;

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering return sd_bus_send(bus, reply, NULL);

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering}

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering

178cc7700c23ac088cd7190d7854282075028d91Lennart Poetteringint bus_machine_method_open_login(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering _cleanup_free_ char *pty_name = NULL, *getty = NULL;

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering _cleanup_bus_unref_ sd_bus *container_bus = NULL;

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering _cleanup_close_ int master = -1;

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering Machine *m = userdata;

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering const char *p;

8a03c9ef744e13dc700a7e7ca6cae8afdcf0d71cZbigniew Jędrzejewski-Szmek int r;

8a03c9ef744e13dc700a7e7ca6cae8afdcf0d71cZbigniew Jędrzejewski-Szmek

8a03c9ef744e13dc700a7e7ca6cae8afdcf0d71cZbigniew Jędrzejewski-Szmek if (m->class != MACHINE_CONTAINER)

8a03c9ef744e13dc700a7e7ca6cae8afdcf0d71cZbigniew Jędrzejewski-Szmek return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Opening logins is only supported on container machines.");

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering r = bus_verify_polkit_async(

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering message,

178cc7700c23ac088cd7190d7854282075028d91Lennart Poettering CAP_SYS_ADMIN,

"org.freedesktop.machine1.login",

false,

&m->manager->polkit_registry,

error);

if (r < 0)

return r;

if (r == 0)

return 1; /* Will call us back */

master = openpt_in_namespace(m->leader, O_RDWR|O_NOCTTY|O_CLOEXEC);

if (master < 0)

return master;

r = ptsname_malloc(master, &pty_name);

if (r < 0)

return r;

p = path_startswith(pty_name, "/dev/pts/");

if (!p)

return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "PTS name %s is invalid", pty_name);

if (unlockpt(master) < 0)

return -errno;

r = sd_bus_new(&container_bus);

if (r < 0)

return r;

#ifdef ENABLE_KDBUS

asprintf(&container_bus->address, "x-machine-kernel:pid=" PID_FMT ";x-machine-unix:pid=" PID_FMT, m->leader, m->leader);

#else

asprintf(&container_bus->address, "x-machine-kernel:pid=" PID_FMT, m->leader);

#endif

if (!container_bus->address)

return log_oom();

container_bus->bus_client = true;

container_bus->trusted = false;

container_bus->is_system = true;

r = sd_bus_start(container_bus);

if (r < 0)

return r;

getty = strjoin("container-getty@", p, ".service", NULL);

if (!getty)

return log_oom();

r = sd_bus_call_method(

container_bus,

"org.freedesktop.systemd1",

"/org/freedesktop/systemd1",

"org.freedesktop.systemd1.Manager",

"StartUnit",

error, NULL,

"ss", getty, "replace");

if (r < 0)

return r;

container_bus = sd_bus_unref(container_bus);

r = sd_bus_message_new_method_return(message, &reply);

if (r < 0)

return r;

r = sd_bus_message_append(reply, "hs", master, pty_name);

if (r < 0)

return r;

return sd_bus_send(bus, reply, NULL);

}

int bus_machine_method_bind_mount(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {

_cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 };

char mount_slave[] = "/tmp/propagate.XXXXXX", *mount_tmp, *mount_outside, *p;

bool mount_slave_created = false, mount_slave_mounted = false,

mount_tmp_created = false, mount_tmp_mounted = false,

mount_outside_created = false, mount_outside_mounted = false;

const char *dest, *src;

Machine *m = userdata;

int read_only, make_directory;

pid_t child;

siginfo_t si;

int r;

if (m->class != MACHINE_CONTAINER)

return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Bind mounting is only supported on container machines.");

r = sd_bus_message_read(message, "ssbb", &src, &dest, &read_only, &make_directory);

if (r < 0)

return r;

if (!path_is_absolute(src) || !path_is_safe(src))

return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Source path must be absolute and not contain ../.");

if (isempty(dest))

dest = src;

else if (!path_is_absolute(dest) || !path_is_safe(dest))

return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path must be absolute and not contain ../.");

/* One day, when bind mounting /proc/self/fd/n works across

p = strjoina("/run/systemd/nspawn/propagate/", m->name, "/");

if (laccess(p, F_OK) < 0)

return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Container does not allow propagation of mount points.");

/* Our goal is to install a new bind mount into the container,

if (!mkdtemp(mount_slave))

return sd_bus_error_set_errnof(error, errno, "Failed to create playground %s: %m", mount_slave);

mount_slave_created = true;

if (mount(mount_slave, mount_slave, NULL, MS_BIND, NULL) < 0) {

r = sd_bus_error_set_errnof(error, errno, "Failed to make bind mount %s: %m", mount_slave);

goto finish;

}

mount_slave_mounted = true;

if (mount(NULL, mount_slave, NULL, MS_SLAVE, NULL) < 0) {

r = sd_bus_error_set_errnof(error, errno, "Failed to remount slave %s: %m", mount_slave);

goto finish;

}

/* Second, we mount the source directory to a directory inside

mount_tmp = strjoina(mount_slave, "/mount");

if (mkdir(mount_tmp, 0700) < 0) {

r = sd_bus_error_set_errnof(error, errno, "Failed to create temporary mount point %s: %m", mount_tmp);

goto finish;

}

mount_tmp_created = true;

if (mount(src, mount_tmp, NULL, MS_BIND, NULL) < 0) {

r = sd_bus_error_set_errnof(error, errno, "Failed to overmount %s: %m", mount_tmp);

goto finish;

}

mount_tmp_mounted = true;

/* Third, we remount the new bind mount read-only if requested. */

if (read_only)

if (mount(NULL, mount_tmp, NULL, MS_BIND|MS_REMOUNT|MS_RDONLY, NULL) < 0) {

r = sd_bus_error_set_errnof(error, errno, "Failed to remount read-only %s: %m", mount_tmp);

goto finish;

}

/* Fourth, we move the new bind mount into the propagation

mount_outside = strjoina("/run/systemd/nspawn/propagate/", m->name, "/XXXXXX");

if (!mkdtemp(mount_outside)) {

r = sd_bus_error_set_errnof(error, errno, "Cannot create propagation directory %s: %m", mount_outside);

goto finish;

}

mount_outside_created = true;

if (mount(mount_tmp, mount_outside, NULL, MS_MOVE, NULL) < 0) {

r = sd_bus_error_set_errnof(error, errno, "Failed to move %s to %s: %m", mount_tmp, mount_outside);

goto finish;

}

mount_outside_mounted = true;

mount_tmp_mounted = false;

(void) rmdir(mount_tmp);

mount_tmp_created = false;

(void) umount(mount_slave);

mount_slave_mounted = false;

(void) rmdir(mount_slave);

mount_slave_created = false;

if (pipe2(errno_pipe_fd, O_CLOEXEC|O_NONBLOCK) < 0) {

r = sd_bus_error_set_errnof(error, errno, "Failed to create pipe: %m");

goto finish;

}

child = fork();

if (child < 0) {

r = sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m");

goto finish;

}

if (child == 0) {

const char *mount_inside;

int mntfd;

const char *q;

errno_pipe_fd[0] = safe_close(errno_pipe_fd[0]);

q = procfs_file_alloca(m->leader, "ns/mnt");

mntfd = open(q, O_RDONLY|O_NOCTTY|O_CLOEXEC);

if (mntfd < 0) {

r = log_error_errno(errno, "Failed to open mount namespace of leader: %m");

goto child_fail;

}

if (setns(mntfd, CLONE_NEWNS) < 0) {

r = log_error_errno(errno, "Failed to join namespace of leader: %m");

goto child_fail;

}

if (make_directory)

(void) mkdir_p(dest, 0755);

/* Fifth, move the mount to the right place inside */

mount_inside = strjoina("/run/systemd/nspawn/incoming/", basename(mount_outside));

if (mount(mount_inside, dest, NULL, MS_MOVE, NULL) < 0) {

r = log_error_errno(errno, "Failed to mount: %m");

goto child_fail;

}

_exit(EXIT_SUCCESS);

child_fail:

(void) write(errno_pipe_fd[1], &r, sizeof(r));

errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]);

_exit(EXIT_FAILURE);

}

errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]);

r = wait_for_terminate(child, &si);

if (r < 0) {

r = sd_bus_error_set_errnof(error, r, "Failed to wait for client: %m");

goto finish;

}

if (si.si_code != CLD_EXITED) {

r = sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Client died abnormally.");

goto finish;

}

if (si.si_status != EXIT_SUCCESS) {

if (read(errno_pipe_fd[0], &r, sizeof(r)) == sizeof(r))

r = sd_bus_error_set_errnof(error, r, "Failed to mount: %m");

else

r = sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Client failed.");

goto finish;

}

r = sd_bus_reply_method_return(message, NULL);

finish:

if (mount_outside_mounted)

umount(mount_outside);

if (mount_outside_created)

rmdir(mount_outside);

if (mount_tmp_mounted)

umount(mount_tmp);

if (mount_tmp_created)

rmdir(mount_tmp);

if (mount_slave_mounted)

umount(mount_slave);

if (mount_slave_created)

rmdir(mount_slave);

return r;

}

static int machine_operation_done(sd_event_source *s, const siginfo_t *si, void *userdata) {

_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;

MachineOperation *o = userdata;

int r;

assert(o);

assert(si);

o->pid = 0;

if (si->si_code != CLD_EXITED) {

r = sd_bus_error_setf(&error, SD_BUS_ERROR_FAILED, "Client died abnormally.");

goto fail;

}

if (si->si_status != EXIT_SUCCESS) {

if (read(o->errno_fd, &r, sizeof(r)) == sizeof(r))

r = sd_bus_error_set_errnof(&error, r, "%m");

else

r = sd_bus_error_setf(&error, SD_BUS_ERROR_FAILED, "Client failed.");

goto fail;

}

r = sd_bus_reply_method_return(o->message, NULL);

if (r < 0)

log_error_errno(r, "Failed to reply to message: %m");

machine_operation_unref(o);

return 0;

fail:

r = sd_bus_reply_method_error(o->message, &error);

if (r < 0)

log_error_errno(r, "Failed to reply to message: %m");

machine_operation_unref(o);

return 0;

}

int bus_machine_method_copy(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {

const char *src, *dest, *host_path, *container_path, *host_basename, *host_dirname, *container_basename, *container_dirname;

_cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 };

_cleanup_close_ int hostfd = -1;

Machine *m = userdata;

MachineOperation *o;

bool copy_from;

pid_t child;

char *t;

int r;

if (m->n_operations >= MACHINE_OPERATIONS_MAX)

return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Too many ongoing copies.");

if (m->class != MACHINE_CONTAINER)

return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Copying files is only supported on container machines.");

r = sd_bus_message_read(message, "ss", &src, &dest);

if (r < 0)

return r;

if (!path_is_absolute(src) || !path_is_safe(src))

return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Source path must be absolute and not contain ../.");

if (isempty(dest))

dest = src;

else if (!path_is_absolute(dest) || !path_is_safe(dest))

return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path must be absolute and not contain ../.");

copy_from = strstr(sd_bus_message_get_member(message), "CopyFrom");

if (copy_from) {

container_path = src;

host_path = dest;

} else {

host_path = src;

container_path = dest;

}

host_basename = basename(host_path);

t = strdupa(host_path);

host_dirname = dirname(t);

container_basename = basename(container_path);

t = strdupa(container_path);

container_dirname = dirname(t);

hostfd = open(host_dirname, O_CLOEXEC|O_RDONLY|O_NOCTTY|O_DIRECTORY);

if (r < 0)

return sd_bus_error_set_errnof(error, errno, "Failed to open host directory %s: %m", host_dirname);

if (pipe2(errno_pipe_fd, O_CLOEXEC|O_NONBLOCK) < 0)

return sd_bus_error_set_errnof(error, errno, "Failed to create pipe: %m");

child = fork();

if (child < 0)

return sd_bus_error_set_errnof(error, errno, "Failed to fork(): %m");

if (child == 0) {

int containerfd;

const char *q;

int mntfd;

errno_pipe_fd[0] = safe_close(errno_pipe_fd[0]);

q = procfs_file_alloca(m->leader, "ns/mnt");

mntfd = open(q, O_RDONLY|O_NOCTTY|O_CLOEXEC);

if (mntfd < 0) {

r = log_error_errno(errno, "Failed to open mount namespace of leader: %m");

goto child_fail;

}

if (setns(mntfd, CLONE_NEWNS) < 0) {

r = log_error_errno(errno, "Failed to join namespace of leader: %m");

goto child_fail;

}

containerfd = open(container_dirname, O_CLOEXEC|O_RDONLY|O_NOCTTY|O_DIRECTORY);

if (containerfd < 0) {

r = log_error_errno(errno, "Failed top open destination directory: %m");

goto child_fail;

}

if (copy_from)

r = copy_tree_at(containerfd, container_basename, hostfd, host_basename, true);

else

r = copy_tree_at(hostfd, host_basename, containerfd, container_basename, true);

hostfd = safe_close(hostfd);

containerfd = safe_close(containerfd);

if (r < 0) {

r = log_error_errno(r, "Failed to copy tree: %m");

goto child_fail;

}

_exit(EXIT_SUCCESS);

child_fail:

(void) write(errno_pipe_fd[1], &r, sizeof(r));

errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]);

_exit(EXIT_FAILURE);

}

errno_pipe_fd[1] = safe_close(errno_pipe_fd[1]);

/* Copying might take a while, hence install a watch the

o = new0(MachineOperation, 1);

if (!o)

return log_oom();

o->pid = child;

o->message = sd_bus_message_ref(message);

o->errno_fd = errno_pipe_fd[0];

errno_pipe_fd[0] = -1;

r = sd_event_add_child(m->manager->event, &o->event_source, child, WEXITED, machine_operation_done, o);

if (r < 0) {

machine_operation_unref(o);

return log_oom();

}

LIST_PREPEND(operations, m->operations, o);

m->n_operations++;

o->machine = m;

return 1;

}

const sd_bus_vtable machine_vtable[] = {

SD_BUS_VTABLE_START(0),

SD_BUS_PROPERTY("Name", "s", NULL, offsetof(Machine, name), SD_BUS_VTABLE_PROPERTY_CONST),

SD_BUS_PROPERTY("Id", "ay", property_get_id, 0, SD_BUS_VTABLE_PROPERTY_CONST),

BUS_PROPERTY_DUAL_TIMESTAMP("Timestamp", offsetof(Machine, timestamp), SD_BUS_VTABLE_PROPERTY_CONST),

SD_BUS_PROPERTY("Service", "s", NULL, offsetof(Machine, service), SD_BUS_VTABLE_PROPERTY_CONST),

SD_BUS_PROPERTY("Unit", "s", NULL, offsetof(Machine, unit), SD_BUS_VTABLE_PROPERTY_CONST),

SD_BUS_PROPERTY("Scope", "s", NULL, offsetof(Machine, unit), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),

SD_BUS_PROPERTY("Leader", "u", NULL, offsetof(Machine, leader), SD_BUS_VTABLE_PROPERTY_CONST),

SD_BUS_PROPERTY("Class", "s", property_get_class, offsetof(Machine, class), SD_BUS_VTABLE_PROPERTY_CONST),

SD_BUS_PROPERTY("RootDirectory", "s", NULL, offsetof(Machine, root_directory), SD_BUS_VTABLE_PROPERTY_CONST),

SD_BUS_PROPERTY("NetworkInterfaces", "ai", property_get_netif, 0, SD_BUS_VTABLE_PROPERTY_CONST),

SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0),

SD_BUS_METHOD("Terminate", NULL, NULL, bus_machine_method_terminate, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),

SD_BUS_METHOD("Kill", "si", NULL, bus_machine_method_kill, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),

SD_BUS_METHOD("GetAddresses", NULL, "a(iay)", bus_machine_method_get_addresses, SD_BUS_VTABLE_UNPRIVILEGED),

SD_BUS_METHOD("GetOSRelease", NULL, "a{ss}", bus_machine_method_get_os_release, SD_BUS_VTABLE_UNPRIVILEGED),

SD_BUS_METHOD("OpenPTY", NULL, "hs", bus_machine_method_open_pty, 0),

SD_BUS_METHOD("OpenLogin", NULL, "hs", bus_machine_method_open_login, SD_BUS_VTABLE_UNPRIVILEGED),

SD_BUS_METHOD("BindMount", "ssbb", NULL, bus_machine_method_bind_mount, 0),

SD_BUS_METHOD("CopyFrom", "ss", NULL, bus_machine_method_copy, 0),

SD_BUS_METHOD("CopyTo", "ss", NULL, bus_machine_method_copy, 0),

SD_BUS_VTABLE_END

};

int machine_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {

Manager *m = userdata;

Machine *machine;

int r;

assert(bus);

assert(path);

assert(interface);

assert(found);

assert(m);

if (streq(path, "/org/freedesktop/machine1/machine/self")) {

_cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;

sd_bus_message *message;

pid_t pid;

message = sd_bus_get_current_message(bus);

if (!message)

return 0;

r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);

if (r < 0)

return r;

r = sd_bus_creds_get_pid(creds, &pid);

if (r < 0)

return r;

r = manager_get_machine_by_pid(m, pid, &machine);

if (r <= 0)

return 0;

} else {

_cleanup_free_ char *e = NULL;

const char *p;

p = startswith(path, "/org/freedesktop/machine1/machine/");

if (!p)

return 0;

e = bus_label_unescape(p);

if (!e)

return -ENOMEM;

machine = hashmap_get(m->machines, e);

if (!machine)

return 0;

}

*found = machine;

return 1;

}

char *machine_bus_path(Machine *m) {

_cleanup_free_ char *e = NULL;

assert(m);

e = bus_label_escape(m->name);

if (!e)

return NULL;

return strappend("/org/freedesktop/machine1/machine/", e);

}

int machine_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {

_cleanup_strv_free_ char **l = NULL;

Machine *machine = NULL;

Manager *m = userdata;

Iterator i;

int r;

assert(bus);

assert(path);

assert(nodes);

HASHMAP_FOREACH(machine, m->machines, i) {

char *p;

p = machine_bus_path(machine);

if (!p)

return -ENOMEM;

r = strv_consume(&l, p);

if (r < 0)

return r;

}

*nodes = l;

l = NULL;

return 1;

}

int machine_send_signal(Machine *m, bool new_machine) {

_cleanup_free_ char *p = NULL;

assert(m);

p = machine_bus_path(m);

if (!p)

return -ENOMEM;

return sd_bus_emit_signal(

m->manager->bus,

"/org/freedesktop/machine1",

"org.freedesktop.machine1.Manager",

new_machine ? "MachineNew" : "MachineRemoved",

"so", m->name, p);

}

int machine_send_create_reply(Machine *m, sd_bus_error *error) {

_cleanup_bus_message_unref_ sd_bus_message *c = NULL;

_cleanup_free_ char *p = NULL;

assert(m);

if (!m->create_message)

return 0;

c = m->create_message;

m->create_message = NULL;

if (error)

return sd_bus_reply_method_error(c, error);

/* Update the machine state file before we notify the client

machine_save(m);

p = machine_bus_path(m);

if (!p)

return -ENOMEM;

return sd_bus_reply_method_return(c, "o", p);

}