void
aibs_refresh(void *arg)
{
struct aibs_softc *sc = arg;
struct aibs_sensor *as;
SIMPLEQ_FOREACH(as, &sc->sc_sensorlist, entry)
aibs_refresh_r(sc, as);
}
/*
* Attach the mainbus.
*/
void
mainbus_attach(device_t parent, device_t self, void *aux)
{
union mainbus_attach_args mba;
struct confargs ca;
#if NPCI > 0
struct genppc_pci_chipset_businfo *pbi;
#ifdef PCI_NETBSD_CONFIGURE
struct extent *ioext, *memext;
#endif
#endif
mainbus_found = 1;
aprint_normal("\n");
#if defined(RESIDUAL_DATA_DUMP)
print_residual_device_info();
#endif
/*
* Always find the CPU
*/
ca.ca_name = "cpu";
ca.ca_node = 0;
config_found_ia(self, "mainbus", &ca, mainbus_print);
ca.ca_name = "cpu";
ca.ca_node = 1;
config_found_ia(self, "mainbus", &ca, mainbus_print);
/*
* XXX Note also that the presence of a PCI bus should
* XXX _always_ be checked, and if present the bus should be
* XXX 'found'. However, because of the structure of the code,
* XXX that's not currently possible.
*/
#if NPCI > 0
genppc_pct = malloc(sizeof(struct genppc_pci_chipset), M_DEVBUF,
M_NOWAIT);
KASSERT(genppc_pct != NULL);
bebox_pci_get_chipset_tag(genppc_pct);
pbi = malloc(sizeof(struct genppc_pci_chipset_businfo),
M_DEVBUF, M_NOWAIT);
KASSERT(pbi != NULL);
pbi->pbi_properties = prop_dictionary_create();
KASSERT(pbi->pbi_properties != NULL);
SIMPLEQ_INIT(&genppc_pct->pc_pbi);
SIMPLEQ_INSERT_TAIL(&genppc_pct->pc_pbi, pbi, next);
#ifdef PCI_NETBSD_CONFIGURE
ioext = extent_create("pciio", 0x00008000, 0x0000ffff,
NULL, 0, EX_NOWAIT);
memext = extent_create("pcimem", 0x00000000, 0x0fffffff,
NULL, 0, EX_NOWAIT);
pci_configure_bus(genppc_pct, ioext, memext, NULL, 0, CACHELINESIZE);
extent_destroy(ioext);
extent_destroy(memext);
#endif /* PCI_NETBSD_CONFIGURE */
#endif /* NPCI */
#if NPCI > 0
memset(&mba, 0, sizeof(mba));
mba.mba_pba.pba_iot = &prep_io_space_tag;
mba.mba_pba.pba_memt = &prep_mem_space_tag;
mba.mba_pba.pba_dmat = &pci_bus_dma_tag;
mba.mba_pba.pba_dmat64 = NULL;
mba.mba_pba.pba_pc = genppc_pct;
mba.mba_pba.pba_bus = 0;
mba.mba_pba.pba_bridgetag = NULL;
mba.mba_pba.pba_flags = PCI_FLAGS_IO_OKAY | PCI_FLAGS_MEM_OKAY;
config_found_ia(self, "pcibus", &mba.mba_pba, pcibusprint);
#endif /* NPCI */
#ifdef RESIDUAL_DATA_DUMP
SIMPLEQ_FOREACH(pbi, &genppc_pct->pc_pbi, next)
printf("%s\n", prop_dictionary_externalize(pbi->pbi_properties));
#endif
}
int
main(int argc, char **argv)
{
struct bindmnt *bmnt;
uid_t uid = getuid();
gid_t gid = getgid();
const char *chrootdir, *cmd, *argv0;
char **cmdargs, buf[32];
int c, fd;
const struct option longopts[] = {
{ NULL, 0, NULL, 0 }
};
chrootdir = cmd = NULL;
argv0 = argv[0];
while ((c = getopt_long(argc, argv, "b:V", longopts, NULL)) != -1) {
switch (c) {
case 'b':
if (optarg == NULL || *optarg == '\0')
break;
add_bindmount(optarg);
break;
case 'V':
printf("%s\n", XBPS_RELVER);
exit(EXIT_SUCCESS);
case '?':
default:
usage(argv0);
}
}
argc -= optind;
argv += optind;
if (argc < 2)
usage(argv0);
chrootdir = argv[0];
cmd = argv[1];
cmdargs = argv + 1;
/* Never allow chrootdir == / */
if (strcmp(chrootdir, "/") == 0)
die("/ is not allowed to be used as chrootdir");
/* Make chrootdir absolute */
if (chrootdir[0] != '/') {
char cwd[PATH_MAX-1];
if (getcwd(cwd, sizeof(cwd)) == NULL)
die("getcwd");
chrootdir = xbps_xasprintf("%s/%s", cwd, chrootdir);
}
/*
* Unshare from the current process namespaces and set ours.
*/
if (unshare(CLONE_NEWUSER|CLONE_NEWNS|CLONE_NEWIPC|CLONE_NEWUTS) == -1) {
errval = 99;
die("unshare");
}
/*
* Setup uid/gid user mappings and restrict setgroups().
*/
if ((fd = open("/proc/self/uid_map", O_RDWR)) == -1)
die("failed to open /proc/self/uidmap rw");
if (write(fd, buf, snprintf(buf, sizeof buf, "%u %u 1\n", uid, uid)) == -1)
die("failed to write to /proc/self/uid_map");
close(fd);
if ((fd = open("/proc/self/setgroups", O_RDWR)) != -1) {
if (write(fd, "deny", 4) == -1)
die("failed to write to /proc/self/setgroups");
close(fd);
}
if ((fd = open("/proc/self/gid_map", O_RDWR)) == -1)
die("failed to open /proc/self/gid_map rw");
if (write(fd, buf, snprintf(buf, sizeof buf, "%u %u 1\n", gid, gid)) == -1)
die("failed to write to /proc/self/gid_map");
close(fd);
/* bind mount /proc */
bindmount(chrootdir, "/proc", NULL);
/* bind mount /sys */
bindmount(chrootdir, "/sys", NULL);
/* bind mount /dev */
bindmount(chrootdir, "/dev", NULL);
/* bind mount all user specified mnts */
SIMPLEQ_FOREACH(bmnt, &bindmnt_queue, entries)
bindmount(chrootdir, bmnt->src, bmnt->dest);
/* move chrootdir to / and chroot to it */
if (chdir(chrootdir) == -1)
die("chdir to %s", chrootdir);
if (mount(".", ".", NULL, MS_BIND|MS_PRIVATE, NULL) == -1)
die("Failed to bind mount %s", chrootdir);
if (mount(chrootdir, "/", NULL, MS_MOVE, NULL) == -1)
die("Failed to move %s as rootfs", chrootdir);
if (chroot(".") == -1)
die("Failed to chroot to %s", chrootdir);
if (execvp(cmd, cmdargs) == -1)
die("Failed to execute command %s", cmd);
/* NOTREACHED */
exit(EXIT_FAILURE);
}
