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/* ProcFS - root.c - generators for static files in the root directory */
#include "inc.h"
#if defined (__i386__)
#include <machine/pci.h>
#endif
#include <minix/dmap.h>
static void root_hz(void);
static void root_uptime(void);
static void root_loadavg(void);
static void root_kinfo(void);
static void root_meminfo(void);
#if defined(__i386__)
static void root_pci(void);
#endif
static void root_dmap(void);
static void root_ipcvecs(void);
static void root_mounts(void);
struct file root_files[] = {
{ "hz", REG_ALL_MODE, (data_t) root_hz },
{ "uptime", REG_ALL_MODE, (data_t) root_uptime },
{ "loadavg", REG_ALL_MODE, (data_t) root_loadavg },
{ "kinfo", REG_ALL_MODE, (data_t) root_kinfo },
{ "meminfo", REG_ALL_MODE, (data_t) root_meminfo },
#if defined(__i386__)
{ "pci", REG_ALL_MODE, (data_t) root_pci },
#endif
{ "dmap", REG_ALL_MODE, (data_t) root_dmap },
#if defined(__i386__)
{ "cpuinfo", REG_ALL_MODE, (data_t) root_cpuinfo },
#endif
{ "ipcvecs", REG_ALL_MODE, (data_t) root_ipcvecs },
{ "mounts", REG_ALL_MODE, (data_t) root_mounts },
{ NULL, 0, NULL }
};
/*
* Print the system clock frequency.
*/
static void
root_hz(void)
{
buf_printf("%lu\n", (unsigned long)sys_hz());
}
/*
* Print load averages.
*/
static void
root_loadavg(void)
{
struct load loads[3];
ldiv_t avg[3];
if (procfs_getloadavg(loads, 3) != 3)
return;
avg[0] = ldiv(100L * loads[0].proc_load / loads[0].ticks, 100);
avg[1] = ldiv(100L * loads[1].proc_load / loads[1].ticks, 100);
avg[2] = ldiv(100L * loads[2].proc_load / loads[2].ticks, 100);
buf_printf("%ld.%02ld %ld.%02ld %ld.%02ld\n",
avg[0].quot, avg[0].rem, avg[1].quot, avg[1].rem,
avg[2].quot, avg[2].rem);
}
/*
* Print the current uptime.
*/
static void
root_uptime(void)
{
ldiv_t division;
division = ldiv(100L * getticks() / sys_hz(), 100L);
buf_printf("%ld.%0.2ld\n", division.quot, division.rem);
}
/*
* Print general kernel information.
*/
static void
root_kinfo(void)
{
struct kinfo kinfo;
if (sys_getkinfo(&kinfo) != OK)
return;
buf_printf("%u %u\n", kinfo.nr_procs, kinfo.nr_tasks);
}
/*
* Print general memory information.
*/
static void
root_meminfo(void)
{
struct vm_stats_info vsi;
if (vm_info_stats(&vsi) != OK)
return;
buf_printf("%u %lu %lu %lu %lu\n", vsi.vsi_pagesize, vsi.vsi_total,
vsi.vsi_free, vsi.vsi_largest, vsi.vsi_cached);
}
#if defined(__i386__)
/*
* Print information about PCI devices present in the system.
*/
static void
root_pci(void)
{
u16_t vid, did, subvid, subdid;
u8_t bcr, scr, pifr, rev;
char *slot_name, *dev_name;
int r, devind;
static int first = TRUE;
/* This should be taken care of behind the scenes by the PCI lib. */
if (first) {
pci_init();
first = FALSE;
}
/* Iterate over all devices, printing info for each of them. */
r = pci_first_dev(&devind, &vid, &did);
while (r == 1) {
slot_name = pci_slot_name(devind);
dev_name = pci_dev_name(vid, did);
bcr = pci_attr_r8(devind, PCI_BCR);
scr = pci_attr_r8(devind, PCI_SCR);
pifr = pci_attr_r8(devind, PCI_PIFR);
rev = pci_attr_r8(devind, PCI_REV);
subvid = pci_attr_r16(devind, PCI_SUBVID);
subdid = pci_attr_r16(devind, PCI_SUBDID);
buf_printf("%s %x/%x/%x/%x %04X:%04X:%04X:%04X %s\n",
slot_name ? slot_name : "-1.-1.-1.-1",
bcr, scr, pifr, rev,
vid, did, subvid, subdid,
dev_name ? dev_name : "");
r = pci_next_dev(&devind, &vid, &did);
}
}
#endif /* defined(__i386__) */
/*
* Print a list of drivers that have been assigned major device numbers.
*/
static void
root_dmap(void)
{
struct dmap dmap[NR_DEVICES];
int i;
if (getsysinfo(VFS_PROC_NR, SI_DMAP_TAB, dmap, sizeof(dmap)) != OK)
return;
for (i = 0; i < NR_DEVICES; i++) {
if (dmap[i].dmap_driver == NONE)
continue;
buf_printf("%u %s %u\n", i, dmap[i].dmap_label,
dmap[i].dmap_driver);
}
}
/*
* Print a list of IPC vectors with their addresses.
*/
static void
root_ipcvecs(void)
{
extern struct minix_ipcvecs _minix_ipcvecs;
/*
* Only print this if the kernel provides the info; otherwise binaries
* will be using their own in-libc vectors that are normal symbols in
* the binary.
*/
if (!(get_minix_kerninfo()->ki_flags & MINIX_KIF_IPCVECS))
return;
/*
* Print the vectors with an descriptive name and the additional (k)
* to distinguish them from regular symbols.
*/
#define PRINT_ENTRYPOINT(name) \
buf_printf("%08lx T %s(k)\n", \
(unsigned long)_minix_ipcvecs.name, #name)
PRINT_ENTRYPOINT(sendrec);
PRINT_ENTRYPOINT(send);
PRINT_ENTRYPOINT(notify);
PRINT_ENTRYPOINT(senda);
PRINT_ENTRYPOINT(sendnb);
PRINT_ENTRYPOINT(receive);
PRINT_ENTRYPOINT(do_kernel_call);
}
/*
* Print the list of mounted file systems.
*/
static void
root_mounts(void)
{
struct statvfs buf[NR_MNTS];
int i, count;
if ((count = getvfsstat(buf, sizeof(buf), ST_NOWAIT)) < 0)
return;
for (i = 0; i < count; i++) {
buf_printf("%s on %s type %s (%s)\n", buf[i].f_mntfromname,
buf[i].f_mntonname, buf[i].f_fstypename,
(buf[i].f_flag & ST_RDONLY) ? "ro" : "rw");
}
}
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