/*
* Load the if_bridge.ko module in kernel if not already there.
*/
int
bridge_kmod_load(void)
{
int fileid, modid;
const char mod_name[] = "if_bridge";
struct module_stat mstat;
/* Scan files in kernel. */
mstat.version = sizeof(struct module_stat);
for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
/* Scan modules in file. */
for (modid = kldfirstmod(fileid); modid > 0;
modid = modfnext(modid)) {
if (modstat(modid, &mstat) < 0)
continue;
if (strcmp(mod_name, mstat.name) == 0)
return (0);
}
}
/* Not present - load it. */
if (kldload(mod_name) < 0) {
syslog(LOG_ERR, "failed to load %s kernel module", mod_name);
return (-1);
}
return (1);
}
int
kld_isloaded(const char *name)
{
struct kld_file_stat fstat;
struct module_stat mstat;
const char *ko;
int fid, mid;
for (fid = kldnext(0); fid > 0; fid = kldnext(fid)) {
fstat.version = sizeof(fstat);
if (kldstat(fid, &fstat) != 0)
continue;
/* check if the file name matches the supplied name */
if (strcmp(fstat.name, name) == 0)
return (1);
/* strip .ko and try again */
if ((ko = strstr(fstat.name, ".ko")) != NULL &&
strlen(name) == (size_t)(ko - fstat.name) &&
strncmp(fstat.name, name, ko - fstat.name) == 0)
return (1);
/* look for a matching module within the file */
for (mid = kldfirstmod(fid); mid > 0; mid = modfnext(mid)) {
mstat.version = sizeof(mstat);
if (modstat(mid, &mstat) != 0)
continue;
if (strcmp(mstat.name, name) == 0)
return (1);
}
}
return (0);
}
static void
printfile(int fileid, int verbose, int humanized)
{
struct kld_file_stat stat;
int modid;
char buf[5];
stat.version = sizeof(struct kld_file_stat);
if (kldstat(fileid, &stat) < 0) {
err(1, "can't stat file id %d", fileid);
} else {
if (humanized) {
humanize_number(buf, sizeof(buf), stat.size,
"", HN_AUTOSCALE, HN_DECIMAL | HN_NOSPACE);
printf("%2d %4d %p %5s %s",
stat.id, stat.refs, stat.address, buf, stat.name);
} else {
printf("%2d %4d %p %8zx %s",
stat.id, stat.refs, stat.address, stat.size, stat.name);
}
}
if (verbose) {
printf(" (%s)\n", stat.pathname);
printf("\tContains modules:\n");
printf("\t\tId Name\n");
for (modid = kldfirstmod(fileid); modid > 0;
modid = modfnext(modid))
printmod(modid);
} else
printf("\n");
}
void
ifmaybeload(const char *name)
{
#ifndef __rtems__
#define MOD_PREFIX_LEN 3 /* "if_" */
struct module_stat mstat;
int fileid, modid;
char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp;
const char *cp;
/* loading suppressed by the user */
if (noload)
return;
/* trim the interface number off the end */
strlcpy(ifname, name, sizeof(ifname));
for (dp = ifname; *dp != 0; dp++)
if (isdigit(*dp)) {
*dp = 0;
break;
}
/* turn interface and unit into module name */
strcpy(ifkind, "if_");
strlcpy(ifkind + MOD_PREFIX_LEN, ifname,
sizeof(ifkind) - MOD_PREFIX_LEN);
/* scan files in kernel */
mstat.version = sizeof(struct module_stat);
for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
/* scan modules in file */
for (modid = kldfirstmod(fileid); modid > 0;
modid = modfnext(modid)) {
if (modstat(modid, &mstat) < 0)
continue;
/* strip bus name if present */
if ((cp = strchr(mstat.name, '/')) != NULL) {
cp++;
} else {
cp = mstat.name;
}
/* already loaded? */
if (strncmp(ifname, cp, strlen(ifname) + 1) == 0 ||
strncmp(ifkind, cp, strlen(ifkind) + 1) == 0)
return;
}
}
/* not present, we should try to load it */
kldload(ifkind);
#endif
}
static void
printfile(int fileid, int verbose)
{
struct kld_file_stat stat;
int modid;
stat.version = sizeof(struct kld_file_stat);
if (kldstat(fileid, &stat) < 0)
warn("can't stat file id %d", fileid);
else
printf("%2d %4d %p %-8jx %s\n",
stat.id, stat.refs, stat.address, (uintmax_t)stat.size,
stat.name);
if (verbose) {
printf("\tContains modules:\n");
printf("\t\tId Name\n");
for (modid = kldfirstmod(fileid); modid > 0;
modid = modfnext(modid))
printmod(modid);
}
}
void
ifmaybeload(const char *name)
{
struct module_stat mstat;
int fileid, modid;
char ifkind[35], *dp;
const char *cp;
/* turn interface and unit into module name */
strcpy(ifkind, "if_");
for (cp = name, dp = ifkind + 3;
(*cp != 0) && !isdigit(*cp); cp++, dp++)
*dp = *cp;
*dp = 0;
/* scan files in kernel */
mstat.version = sizeof(struct module_stat);
for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
/* scan modules in file */
for (modid = kldfirstmod(fileid); modid > 0;
modid = modfnext(modid)) {
if (modstat(modid, &mstat) < 0)
continue;
/* strip bus name if present */
if ((cp = strchr(mstat.name, '/')) != NULL) {
cp++;
} else {
cp = mstat.name;
}
/* already loaded? */
if (strncmp(name, cp, strlen(cp)) == 0 ||
strncmp(ifkind, cp, strlen(cp)) == 0)
return;
}
}
/* not present, we should try to load it */
kldload(ifkind);
}
