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#include "defs.h"
#include <linux/sysctl.h>
#include "xlat/sysctl_root.h"
#include "xlat/sysctl_kern.h"
#include "xlat/sysctl_vm.h"
#include "xlat/sysctl_net.h"
#include "xlat/sysctl_net_core.h"
#include "xlat/sysctl_net_unix.h"
#include "xlat/sysctl_net_ipv4.h"
#include "xlat/sysctl_net_ipv4_route.h"
#include "xlat/sysctl_net_ipv4_conf.h"
#include "xlat/sysctl_net_ipv6.h"
#include "xlat/sysctl_net_ipv6_route.h"
int
sys_sysctl(struct tcb *tcp)
{
struct __sysctl_args info;
int *name;
unsigned long size;
if (umove(tcp, tcp->u_arg[0], &info) < 0)
return printargs(tcp);
size = sizeof(int) * (unsigned long) info.nlen;
name = (size / sizeof(int) != (unsigned long) info.nlen) ? NULL : malloc(size);
if (name == NULL ||
umoven(tcp, (unsigned long) info.name, size, name) < 0) {
free(name);
if (entering(tcp))
tprintf("{%p, %d, %p, %p, %p, %lu}",
info.name, info.nlen, info.oldval,
info.oldlenp, info.newval, (unsigned long)info.newlen);
return 0;
}
if (entering(tcp)) {
unsigned int cnt = 0, max_cnt;
tprints("{{");
if (info.nlen == 0)
goto out;
printxval(sysctl_root, name[0], "CTL_???");
++cnt;
if (info.nlen == 1)
goto out;
switch (name[0]) {
case CTL_KERN:
tprints(", ");
printxval(sysctl_kern, name[1], "KERN_???");
++cnt;
break;
case CTL_VM:
tprints(", ");
printxval(sysctl_vm, name[1], "VM_???");
++cnt;
break;
case CTL_NET:
tprints(", ");
printxval(sysctl_net, name[1], "NET_???");
++cnt;
if (info.nlen == 2)
goto out;
switch (name[1]) {
case NET_CORE:
tprints(", ");
printxval(sysctl_net_core, name[2],
"NET_CORE_???");
break;
case NET_UNIX:
tprints(", ");
printxval(sysctl_net_unix, name[2],
"NET_UNIX_???");
break;
case NET_IPV4:
tprints(", ");
printxval(sysctl_net_ipv4, name[2],
"NET_IPV4_???");
if (info.nlen == 3)
goto out;
switch (name[2]) {
case NET_IPV4_ROUTE:
tprints(", ");
printxval(sysctl_net_ipv4_route,
name[3],
"NET_IPV4_ROUTE_???");
break;
case NET_IPV4_CONF:
tprints(", ");
printxval(sysctl_net_ipv4_conf,
name[3],
"NET_IPV4_CONF_???");
break;
default:
goto out;
}
break;
case NET_IPV6:
tprints(", ");
printxval(sysctl_net_ipv6, name[2],
"NET_IPV6_???");
if (info.nlen == 3)
goto out;
switch (name[2]) {
case NET_IPV6_ROUTE:
tprints(", ");
printxval(sysctl_net_ipv6_route,
name[3],
"NET_IPV6_ROUTE_???");
break;
default:
goto out;
}
break;
default:
goto out;
}
break;
default:
goto out;
}
out:
max_cnt = info.nlen;
if (abbrev(tcp) && max_cnt > max_strlen)
max_cnt = max_strlen;
while (cnt < max_cnt)
tprintf(", %x", name[cnt++]);
if (cnt < (unsigned) info.nlen)
tprints(", ...");
tprintf("}, %d, ", info.nlen);
} else {
size_t oldlen = 0;
if (info.oldval == NULL) {
tprints("NULL");
} else if (umove(tcp, (long)info.oldlenp, &oldlen) >= 0
&& info.nlen >= 2
&& ((name[0] == CTL_KERN
&& (name[1] == KERN_OSRELEASE
|| name[1] == KERN_OSTYPE
#ifdef KERN_JAVA_INTERPRETER
|| name[1] == KERN_JAVA_INTERPRETER
#endif
#ifdef KERN_JAVA_APPLETVIEWER
|| name[1] == KERN_JAVA_APPLETVIEWER
#endif
)))) {
printpath(tcp, (size_t)info.oldval);
} else {
tprintf("%p", info.oldval);
}
tprintf(", %lu, ", (unsigned long)oldlen);
if (info.newval == NULL)
tprints("NULL");
else if (syserror(tcp))
tprintf("%p", info.newval);
else
printpath(tcp, (size_t)info.newval);
tprintf(", %lu", (unsigned long)info.newlen);
}
free(name);
return 0;
}
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