#include <errno.h>
#include <string.h>
#include <sys/capability.h>
+#include <arpa/inet.h>
#include "bus-util.h"
#include "bus-label.h"
#include "strv.h"
+#include "bus-errors.h"
+#include "copy.h"
+#include "fileio.h"
+#include "in-addr-util.h"
+#include "local-addresses.h"
#include "machine.h"
static int property_get_id(
return 1;
}
+static int property_get_netif(
+ sd_bus *bus,
+ const char *path,
+ const char *interface,
+ const char *property,
+ sd_bus_message *reply,
+ void *userdata,
+ sd_bus_error *error) {
+
+ Machine *m = userdata;
+ int r;
+
+ assert(bus);
+ assert(reply);
+ assert(m);
+
+ assert_cc(sizeof(int) == sizeof(int32_t));
+
+ r = sd_bus_message_append_array(reply, 'i', m->netif, m->n_netif * sizeof(int));
+ if (r < 0)
+ return r;
+
+ return 1;
+}
+
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_class, machine_class, MachineClass);
-static int method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+int bus_machine_method_terminate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
Machine *m = userdata;
int r;
return sd_bus_reply_method_return(message, NULL);
}
-static int method_kill(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+int bus_machine_method_kill(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
Machine *m = userdata;
const char *swho;
int32_t signo;
return sd_bus_reply_method_return(message, NULL);
}
+int bus_machine_method_get_addresses(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+ _cleanup_close_pair_ int pair[2] = { -1, -1 };
+ _cleanup_free_ char *us = NULL, *them = NULL;
+ _cleanup_close_ int netns_fd = -1;
+ Machine *m = userdata;
+ const char *p;
+ siginfo_t si;
+ pid_t child;
+ int r;
+
+ assert(bus);
+ assert(message);
+ assert(m);
+
+ r = readlink_malloc("/proc/self/ns/net", &us);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ p = procfs_file_alloca(m->leader, "ns/net");
+ r = readlink_malloc(p, &them);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ if (streq(us, them))
+ return sd_bus_error_setf(error, BUS_ERROR_NO_PRIVATE_NETWORKING, "Machine %s does not use private networking", m->name);
+
+ r = namespace_open(m->leader, NULL, NULL, &netns_fd, NULL);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, pair) < 0)
+ return sd_bus_error_set_errno(error, -errno);
+
+ child = fork();
+ if (child < 0)
+ return sd_bus_error_set_errno(error, -errno);
+
+ if (child == 0) {
+ _cleanup_free_ struct local_address *addresses = NULL;
+ struct local_address *a;
+ int i, n;
+
+ pair[0] = safe_close(pair[0]);
+
+ r = namespace_enter(-1, -1, netns_fd, -1);
+ if (r < 0)
+ _exit(EXIT_FAILURE);
+
+ n = local_addresses(&addresses);
+ if (n < 0)
+ _exit(EXIT_FAILURE);
+
+ for (a = addresses, i = 0; i < n; a++, i++) {
+ struct iovec iov[2] = {
+ { .iov_base = &a->family, .iov_len = sizeof(a->family) },
+ { .iov_base = &a->address, .iov_len = FAMILY_ADDRESS_SIZE(a->family) },
+ };
+
+ r = writev(pair[1], iov, 2);
+ if (r < 0)
+ _exit(EXIT_FAILURE);
+ }
+
+ pair[1] = safe_close(pair[1]);
+
+ _exit(EXIT_SUCCESS);
+ }
+
+ pair[1] = safe_close(pair[1]);
+
+ r = sd_bus_message_new_method_return(message, &reply);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ r = sd_bus_message_open_container(reply, 'a', "(iay)");
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ for (;;) {
+ int family;
+ ssize_t n;
+ union in_addr_union in_addr;
+ struct iovec iov[2];
+ struct msghdr mh = {
+ .msg_iov = iov,
+ .msg_iovlen = 2,
+ };
+
+ iov[0] = (struct iovec) { .iov_base = &family, .iov_len = sizeof(family) };
+ iov[1] = (struct iovec) { .iov_base = &in_addr, .iov_len = sizeof(in_addr) };
+
+ n = recvmsg(pair[0], &mh, 0);
+ if (n < 0)
+ return sd_bus_error_set_errno(error, -errno);
+ if ((size_t) n < sizeof(family))
+ break;
+
+ r = sd_bus_message_open_container(reply, 'r', "iay");
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ r = sd_bus_message_append(reply, "i", family);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ switch (family) {
+
+ case AF_INET:
+ if (n != sizeof(struct in_addr) + sizeof(family))
+ return sd_bus_error_set_errno(error, EIO);
+
+ r = sd_bus_message_append_array(reply, 'y', &in_addr.in, sizeof(in_addr.in));
+ break;
+
+ case AF_INET6:
+ if (n != sizeof(struct in6_addr) + sizeof(family))
+ return sd_bus_error_set_errno(error, EIO);
+
+ r = sd_bus_message_append_array(reply, 'y', &in_addr.in6, sizeof(in_addr.in6));
+ break;
+ }
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+ }
+
+ r = wait_for_terminate(child, &si);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+ if (si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS)
+ return sd_bus_error_set_errno(error, EIO);
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ return sd_bus_send(bus, reply, NULL);
+}
+
+int bus_machine_method_get_os_release(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
+ _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
+ _cleanup_close_ int mntns_fd = -1, root_fd = -1;
+ _cleanup_close_pair_ int pair[2] = { -1, -1 };
+ _cleanup_strv_free_ char **l = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ Machine *m = userdata;
+ char **k, **v;
+ siginfo_t si;
+ pid_t child;
+ int r;
+
+ assert(bus);
+ assert(message);
+ assert(m);
+
+ r = namespace_open(m->leader, NULL, &mntns_fd, NULL, &root_fd);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, pair) < 0)
+ return sd_bus_error_set_errno(error, -errno);
+
+ child = fork();
+ if (child < 0)
+ return sd_bus_error_set_errno(error, -errno);
+
+ if (child == 0) {
+ _cleanup_close_ int fd = -1;
+
+ pair[0] = safe_close(pair[0]);
+
+ r = namespace_enter(-1, mntns_fd, -1, root_fd);
+ if (r < 0)
+ _exit(EXIT_FAILURE);
+
+ fd = open("/etc/os-release", O_RDONLY|O_CLOEXEC);
+ if (fd < 0) {
+ fd = open("/usr/lib/os-release", O_RDONLY|O_CLOEXEC);
+ if (fd < 0)
+ _exit(EXIT_FAILURE);
+ }
+
+ r = copy_bytes(fd, pair[1], (off_t) -1);
+ if (r < 0)
+ _exit(EXIT_FAILURE);
+
+ _exit(EXIT_SUCCESS);
+ }
+
+ pair[1] = safe_close(pair[1]);
+
+ f = fdopen(pair[0], "re");
+ if (!f)
+ return sd_bus_error_set_errno(error, -errno);
+
+ pair[0] = -1;
+
+ r = load_env_file_pairs(f, "/etc/os-release", NULL, &l);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ r = wait_for_terminate(child, &si);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+ if (si.si_code != CLD_EXITED || si.si_status != EXIT_SUCCESS)
+ return sd_bus_error_set_errno(error, EIO);
+
+ r = sd_bus_message_new_method_return(message, &reply);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ r = sd_bus_message_open_container(reply, 'a', "{ss}");
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ STRV_FOREACH_PAIR(k, v, l) {
+ r = sd_bus_message_append(reply, "{ss}", *k, *v);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+ }
+
+ r = sd_bus_message_close_container(reply);
+ if (r < 0)
+ return sd_bus_error_set_errno(error, r);
+
+ return sd_bus_send(bus, reply, NULL);
+}
+
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("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, method_terminate, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
- SD_BUS_METHOD("Kill", "si", NULL, method_kill, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
+ 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_VTABLE_END
};
~ianmdlvl / elogind.git / blobdiff