Differential D20044 Diff 56823 sbin/ifconfig/ifconfig.c

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sbin/ifconfig/ifconfig.c

Show First 20 Lines • Show All 124 Lines • ▼ Show 20 Lines	struct ifa_order_elt {
int if_order;		int if_order;
int af_orders[255];		int af_orders[255];
struct ifaddrs *ifa;		struct ifaddrs *ifa;
TAILQ_ENTRY(ifa_order_elt) link;		TAILQ_ENTRY(ifa_order_elt) link;
};		};

TAILQ_HEAD(ifa_queue, ifa_order_elt);		TAILQ_HEAD(ifa_queue, ifa_order_elt);

		static struct module_map_entry {
		const char *ifname;
		const char *kldname;
		} module_map[] = {
		{
		.ifname = "tun",
		.kldname = "if_tuntap",
		},
		{
		.ifname = "tap",
		.kldname = "if_tuntap",
		},
		{
		.ifname = "vmnet",
		.kldname = "if_tuntap",
		},
		};


void		void
opt_register(struct option *p)		opt_register(struct option *p)
{		{
p->next = opts;		p->next = opts;
opts = p;		opts = p;
}		}

static void		static void
▲ Show 20 Lines • Show All 1,267 Lines • ▼ Show 20 Lines	print_vhid(const struct ifaddrs ifa, const char s)
printf(" vhid %d", ifd->ifi_vhid);		printf(" vhid %d", ifd->ifi_vhid);
}		}

void		void
ifmaybeload(const char *name)		ifmaybeload(const char *name)
{		{
#define MOD_PREFIX_LEN 3 /* "if_" */		#define MOD_PREFIX_LEN 3 /* "if_" */
struct module_stat mstat;		struct module_stat mstat;
int fileid, modid;		int i, fileid, modid;
char ifkind[IFNAMSIZ + MOD_PREFIX_LEN], ifname[IFNAMSIZ], *dp;		char ifname[IFNAMSIZ], ifkind, dp;
const char *cp;		const char *cp;
		struct module_map_entry *mme;

/* loading suppressed by the user */		/* loading suppressed by the user */
if (noload)		if (noload)
return;		return;

/* trim the interface number off the end */		/* trim the interface number off the end */
strlcpy(ifname, name, sizeof(ifname));		strlcpy(ifname, name, sizeof(ifname));
for (dp = ifname; *dp != 0; dp++)		for (dp = ifname; *dp != 0; dp++)
if (isdigit(*dp)) {		if (isdigit(*dp)) {
*dp = 0;		*dp = 0;
break;		break;
}		}

		/* Either derive it from the map or guess otherwise */
		ifkind = NULL;
		for (i = 0; i < nitems(module_map); ++i) {
		mme = &module_map[i];
		if (strcmp(mme->ifname, ifname) == 0) {
		ifkind = strdup(mme->kldname);
		if (ifkind == NULL)
		err(EXIT_FAILURE, "ifmaybeload");
		break;
		}
		}

		/* We didn't have an alias for it... we'll guess. */
		if (ifkind == NULL) {
		ifkind = malloc(IFNAMSIZ + MOD_PREFIX_LEN);

/* turn interface and unit into module name */		/* turn interface and unit into module name */
strlcpy(ifkind, "if_", sizeof(ifkind));		strlcpy(ifkind, "if_", sizeof(ifkind));
strlcat(ifkind, ifname, sizeof(ifkind));		strlcat(ifkind, ifname, sizeof(ifkind));
		}

/* scan files in kernel */		/* scan files in kernel */
mstat.version = sizeof(struct module_stat);		mstat.version = sizeof(struct module_stat);
for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {		for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) {
/* scan modules in file */		/* scan modules in file */
for (modid = kldfirstmod(fileid); modid > 0;		for (modid = kldfirstmod(fileid); modid > 0;
modid = modfnext(modid)) {		modid = modfnext(modid)) {
if (modstat(modid, &mstat) < 0)		if (modstat(modid, &mstat) < 0)
continue;		continue;
/* strip bus name if present */		/* strip bus name if present */
if ((cp = strchr(mstat.name, '/')) != NULL) {		if ((cp = strchr(mstat.name, '/')) != NULL) {
cp++;		cp++;
} else {		} else {
cp = mstat.name;		cp = mstat.name;
}		}
/* already loaded? */		/* already loaded? */
if (strcmp(ifname, cp) == 0 \|\|		if (strcmp(ifname, cp) == 0 \|\|
strcmp(ifkind, cp) == 0)		strcmp(ifkind, cp) == 0)
return;		goto out;
}		}
}		}

/*		/*
* Try to load the module. But ignore failures, because ifconfig can't		* Try to load the module. But ignore failures, because ifconfig can't
* infer the names of all drivers (eg mlx4en(4)).		* infer the names of all drivers (eg mlx4en(4)).
*/		*/
(void) kldload(ifkind);		(void) kldload(ifkind);
		out:
		free(ifkind);
}		}

static struct cmd basic_cmds[] = {		static struct cmd basic_cmds[] = {
DEF_CMD("up", IFF_UP, setifflags),		DEF_CMD("up", IFF_UP, setifflags),
DEF_CMD("down", -IFF_UP, setifflags),		DEF_CMD("down", -IFF_UP, setifflags),
DEF_CMD("arp", -IFF_NOARP, setifflags),		DEF_CMD("arp", -IFF_NOARP, setifflags),
DEF_CMD("-arp", IFF_NOARP, setifflags),		DEF_CMD("-arp", IFF_NOARP, setifflags),
DEF_CMD("debug", IFF_DEBUG, setifflags),		DEF_CMD("debug", IFF_DEBUG, setifflags),
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