/* Report or change the active timecounter hardware. */
int
sysctl_tc_hardware(void *oldp, size_t *oldlenp, void *newp, size_t newlen)
{
char newname[32];
struct timecounter *newtc, *tc;
int error;
tc = timecounter;
strlcpy(newname, tc->tc_name, sizeof(newname));
error = sysctl_string(oldp, oldlenp, newp, newlen, newname, sizeof(newname));
if (error != 0 || strcmp(newname, tc->tc_name) == 0)
return (error);
for (newtc = timecounters; newtc != NULL; newtc = newtc->tc_next) {
if (strcmp(newname, newtc->tc_name) != 0)
continue;
/* Warm up new timecounter. */
(void)newtc->tc_get_timecount(newtc);
(void)newtc->tc_get_timecount(newtc);
timecounter = newtc;
return (0);
}
return (EINVAL);
}
/* The generic string strategy routine: */
static int sysctl_uts_string(ctl_table *table,
void __user *oldval, size_t __user *oldlenp,
void __user *newval, size_t newlen)
{
struct ctl_table uts_table;
int r, write;
write = newval && newlen;
memcpy(&uts_table, table, sizeof(uts_table));
uts_table.data = get_uts(table, write);
r = sysctl_string(&uts_table, oldval, oldlenp, newval, newlen);
put_uts(table, write, uts_table.data);
return r;
}
/* Strategy function to write EEPROM after changing string entry */
int sysctl_lasatstring(ctl_table *table, int *name, int nlen,
void *oldval, size_t *oldlenp,
void *newval, size_t newlen)
{
int r;
r = sysctl_string(table, name,
nlen, oldval, oldlenp, newval, newlen);
if (r < 0)
return r;
if (newval && newlen)
lasat_write_eeprom_info();
return 0;
}
static int sysctl_tcp_congestion_control(ctl_table *table,
void __user *oldval,
size_t __user *oldlenp,
void __user *newval, size_t newlen)
{
char val[TCP_CA_NAME_MAX];
ctl_table tbl = {
.data = val,
.maxlen = TCP_CA_NAME_MAX,
};
int ret;
tcp_get_default_congestion_control(val);
ret = sysctl_string(&tbl, oldval, oldlenp, newval, newlen);
if (ret == 1 && newval && newlen)
ret = tcp_set_default_congestion_control(val);
return ret;
}
/* Strategy function to write EEPROM after changing string entry */
int sysctl_lasatstring(ctl_table *table, int *name, int nlen,
void *oldval, size_t *oldlenp,
void *newval, size_t newlen)
{
int r;
mutex_lock(&lasat_info_mutex);
r = sysctl_string(table, name,
nlen, oldval, oldlenp, newval, newlen);
if (r < 0) {
mutex_unlock(&lasat_info_mutex);
return r;
}
if (newval && newlen) {
lasat_write_eeprom_info();
}
mutex_unlock(&lasat_info_mutex);
return 1;
}
