Exemple #1
0
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);
}
Exemple #2
0
/*
 * 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);
}
Exemple #3
0
/*
 * Get kernel items: first the kernel itself, then the loaded modules.
 */
static void
swrun_OS_get_kinfo(void)
{
	int fileid;
	struct swrun_entry *entry;
	struct kld_file_stat stat;

	for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
		stat.version = sizeof(struct kld_file_stat);
		if (kldstat(fileid, &stat) < 0) {
			syslog(LOG_ERR, "kldstat() failed: %m");
			continue;
		}

		/*
		 * kernel and kernel files (*.ko) will be indexed starting with
		 * NO_PID + 1; NO_PID is PID_MAX + 1 thus it will be no risk to
		 * overlap with real PIDs which are in range of 1 .. NO_PID
		 */
		entry = swrun_entry_find_by_index(NO_PID + 1 + stat.id);
		if (entry == NULL) {
			/* new entry - get memory for it */
			entry = swrun_entry_create(NO_PID + 1 + stat.id);
			if (entry == NULL)
				continue;
		}
		entry->flags |= HR_SWRUN_FOUND; /* mark it as found */

		kld_file_stat_to_swrun(&stat, entry);
	}
}
int virHostValidateBhyve(void)
{
    int ret = 0;
    int fileid = 0;
    struct kld_file_stat stat;
    bool vmm_loaded = false, if_tap_loaded = false;
    bool if_bridge_loaded = false, nmdm_loaded = false;

    for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
        stat.version = sizeof(struct kld_file_stat);
        if (kldstat(fileid, &stat) < 0)
            continue;

        if (STREQ(stat.name, "vmm.ko"))
            vmm_loaded = true;
        else if (STREQ(stat.name, "if_tap.ko"))
            if_tap_loaded = true;
        else if (STREQ(stat.name, "if_bridge.ko"))
            if_bridge_loaded = true;
        else if (STREQ(stat.name, "nmdm.ko"))
            nmdm_loaded = true;
    }

    MODULE_STATUS_FAIL(vmm, "will not be able to start VMs");
    MODULE_STATUS_WARN(if_tap, "networking will not work");
    MODULE_STATUS_WARN(if_bridge, "bridged networking will not work");
    MODULE_STATUS_WARN(nmdm, "nmdm console will not work");

    return ret;
}
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
}
int ShowLoadedKernelModules()
{
		
		int FileID = 0;
		
		DrawStatScreen();
		
		
		
		for(FileID = kldnext(0); FileID > 0; FileID = kldnext(FileID))
		printstats(FileID, verbose);
			
		
		wgetch(DLG);
		count=1;
	
	
	return 0;
}
Exemple #7
0
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);
}
Exemple #8
0
/*
 * Get the linker file list using the kld interface.
 * Works with a live kernel only.
 */
void
asf_kld()
{
	struct kld_file_stat kfs;
	int fid = 0;	/* indicates the beginning of the linker file list */

	while ((fid = kldnext(fid)) != 0) {
		if (fid == -1)
			err(2, "kldnext");
		kfs.version = sizeof(kfs);	/* must be set for kldstat(2) */
		/* Get info on this linker file */
		if (kldstat(fid, &kfs) == -1)
			err(2, "kldstat");
		if (strcmp(kfs.name, KERNFILE) == 0)
			continue;
		/* Add to our list of linker files */
		kfile_add(kfs.name, kfs.address);
	}
}
Exemple #9
0
int
main(int argc, char** argv)
{
    int c;
    int verbose = 0;
    int fileid = 0;
    int quiet = 0;
    char* filename = NULL;
    char* modname = NULL;
    char* p;

    while ((c = getopt(argc, argv, "i:m:n:qv")) != -1)
	switch (c) {
	case 'i':
	    fileid = (int)strtoul(optarg, &p, 10);
	    if (*p != '\0')
		usage();
	    break;
	case 'm':
	    modname = optarg;
	    break;
	case 'n':
	    filename = optarg;
	    break;
	case 'q':
	    quiet = 1;
	    break;
	case 'v':
	    verbose = 1;
	    break;
	default:
	    usage();
	}
    argc -= optind;
    argv += optind;

    if (argc != 0)
	usage();

    if (modname != NULL) {
	int modid;
	struct module_stat stat;

	if ((modid = modfind(modname)) < 0) {
	    if (!quiet)
		warn("can't find module %s", modname);
	    return 1;
	} else if (quiet) {
	    return 0;
	}

	stat.version = sizeof(struct module_stat);
	if (modstat(modid, &stat) < 0)
	    warn("can't stat module id %d", modid);
	else {
	    printf("Id  Refs Name\n");
	    printf("%3d %4d %s\n", stat.id, stat.refs, stat.name);
	}

	return 0;
    }

    if (filename != NULL) {
	if ((fileid = kldfind(filename)) < 0)
	    err(1, "can't find file %s", filename);
    }

    printf("Id Refs Address%*c Size     Name\n", POINTER_WIDTH - 7, ' ');
    if (fileid != 0)
	printfile(fileid, verbose);
    else
	for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid))
	    printfile(fileid, verbose);

    return 0;
}
Exemple #10
0
/*
 * Unload all the loaded modules and then refresh the module cache with the
 * latest list of loaded modules and their address ranges.
 */
void
dtrace_update(dtrace_hdl_t *dtp)
{
	dt_module_t *dmp;
	DIR *dirp;
#if defined(__FreeBSD__)
	int fileid;
#endif

	for (dmp = dt_list_next(&dtp->dt_modlist);
	    dmp != NULL; dmp = dt_list_next(dmp))
		dt_module_unload(dtp, dmp);

#if defined(sun)
	/*
	 * Open /system/object and attempt to create a libdtrace module for
	 * each kernel module that is loaded on the current system.
	 */
	if (!(dtp->dt_oflags & DTRACE_O_NOSYS) &&
	    (dirp = opendir(OBJFS_ROOT)) != NULL) {
		struct dirent *dp;

		while ((dp = readdir(dirp)) != NULL) {
			if (dp->d_name[0] != '.')
				dt_module_update(dtp, dp->d_name);
		}

		(void) closedir(dirp);
	}
#elif defined(__FreeBSD__)
	/*
	 * Use FreeBSD's kernel loader interface to discover what kernel
	 * modules are loaded and create a libdtrace module for each one.
	 */
	for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
		struct kld_file_stat k_stat;
		k_stat.version = sizeof(k_stat);
		if (kldstat(fileid, &k_stat) == 0)
			dt_module_update(dtp, &k_stat);
	}
#endif

	/*
	 * Look up all the macro identifiers and set di_id to the latest value.
	 * This code collaborates with dt_lex.l on the use of di_id.  We will
	 * need to implement something fancier if we need to support non-ints.
	 */
	dt_idhash_lookup(dtp->dt_macros, "egid")->di_id = getegid();
	dt_idhash_lookup(dtp->dt_macros, "euid")->di_id = geteuid();
	dt_idhash_lookup(dtp->dt_macros, "gid")->di_id = getgid();
	dt_idhash_lookup(dtp->dt_macros, "pid")->di_id = getpid();
	dt_idhash_lookup(dtp->dt_macros, "pgid")->di_id = getpgid(0);
	dt_idhash_lookup(dtp->dt_macros, "ppid")->di_id = getppid();
#if defined(sun)
	dt_idhash_lookup(dtp->dt_macros, "projid")->di_id = getprojid();
#endif
	dt_idhash_lookup(dtp->dt_macros, "sid")->di_id = getsid(0);
#if defined(sun)
	dt_idhash_lookup(dtp->dt_macros, "taskid")->di_id = gettaskid();
#endif
	dt_idhash_lookup(dtp->dt_macros, "uid")->di_id = getuid();

	/*
	 * Cache the pointers to the modules representing the base executable
	 * and the run-time linker in the dtrace client handle. Note that on
	 * x86 krtld is folded into unix, so if we don't find it, use unix
	 * instead.
	 */
	dtp->dt_exec = dt_module_lookup_by_name(dtp, "genunix");
	dtp->dt_rtld = dt_module_lookup_by_name(dtp, "krtld");
	if (dtp->dt_rtld == NULL)
		dtp->dt_rtld = dt_module_lookup_by_name(dtp, "unix");

	/*
	 * If this is the first time we are initializing the module list,
	 * remove the module for genunix from the module list and then move it
	 * to the front of the module list.  We do this so that type and symbol
	 * queries encounter genunix and thereby optimize for the common case
	 * in dtrace_lookup_by_name() and dtrace_lookup_by_type(), below.
	 */
	if (dtp->dt_exec != NULL &&
	    dtp->dt_cdefs == NULL && dtp->dt_ddefs == NULL) {
		dt_list_delete(&dtp->dt_modlist, dtp->dt_exec);
		dt_list_prepend(&dtp->dt_modlist, dtp->dt_exec);
	}
}
Exemple #11
0
int
main(int argc, char** argv)
{
    int c;
    int humanized = 0;
    int verbose = 0;
    int fileid = 0;
    int quiet = 0;
    char* filename = NULL;
    char* modname = NULL;
    char* p;

    while ((c = getopt(argc, argv, "dhi:m:n:qv")) != -1)
	switch (c) {
	case 'd':
	    showdata = 1;
	    break;
	case 'h':
	    humanized = 1;
	    break;
	case 'i':
	    fileid = (int)strtoul(optarg, &p, 10);
	    if (*p != '\0')
		usage();
	    break;
	case 'm':
	    modname = optarg;
	    break;
	case 'n':
	    filename = optarg;
	    break;
	case 'q':
	    quiet = 1;
	    break;
	case 'v':
	    verbose = 1;
	    break;
	default:
	    usage();
	}
    argc -= optind;
    argv += optind;

    if (argc != 0)
	usage();

    if (modname != NULL) {
	int modid;
	struct module_stat stat;

	if ((modid = modfind(modname)) < 0) {
	    if (!quiet)
		warn("can't find module %s", modname);
	    return 1;
	} else if (quiet) {
	    return 0;
	}

	stat.version = sizeof(struct module_stat);
	if (modstat(modid, &stat) < 0)
	    warn("can't stat module id %d", modid);
	else {
		if (showdata) {
		    printf("Id  Refs Name data..(int, uint, ulong)\n");
		    printf("%3d %4d %s (%d, %u, 0x%lx)\n", stat.id, stat.refs, stat.name, 
		        stat.data.intval, stat.data.uintval, stat.data.ulongval);
		} else {
		    printf("Id  Refs Name\n");
		    printf("%3d %4d %s\n", stat.id, stat.refs, stat.name);
		}
	}

	return 0;
    }

    if (filename != NULL) {
	if ((fileid = kldfind(filename)) < 0) {
	    if (!quiet)
		warn("can't find file %s", filename);
	    return 1;
	} else if (quiet) {
	    return 0;
	}
    }

    if (humanized)
	    printf("Id Refs Address%*c %5s Name\n", POINTER_WIDTH - 7, ' ', "Size");
    else
	    printf("Id Refs Address%*c %8s Name\n", POINTER_WIDTH - 7, ' ', "Size");
    if (fileid != 0)
	printfile(fileid, verbose, humanized);
    else
	for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid))
	    printfile(fileid, verbose, humanized);

    return 0;
}