Release 4.7 drivers/s390/net/qeth_l3_sys.c

Directory: drivers/s390/net
/*
 *    Copyright IBM Corp. 2007
 *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
 *               Frank Pavlic <fpavlic@de.ibm.com>,
 *               Thomas Spatzier <tspat@de.ibm.com>,
 *               Frank Blaschka <frank.blaschka@de.ibm.com>
 */

#include <linux/slab.h>
#include <asm/ebcdic.h>
#include "qeth_l3.h"


#define QETH_DEVICE_ATTR(_id, _name, _mode, _show, _store) \
struct device_attribute dev_attr_##_id = __ATTR(_name, _mode, _show, _store)



static ssize_t qeth_l3_dev_route_show(struct qeth_card *card,
			struct qeth_routing_info *route, char *buf)
{
	switch (route->type) {
	case PRIMARY_ROUTER:
		return sprintf(buf, "%s\n", "primary router");
	case SECONDARY_ROUTER:
		return sprintf(buf, "%s\n", "secondary router");
	case MULTICAST_ROUTER:
		if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
			return sprintf(buf, "%s\n", "multicast router+");
		else
			return sprintf(buf, "%s\n", "multicast router");
	case PRIMARY_CONNECTOR:
		if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
			return sprintf(buf, "%s\n", "primary connector+");
		else
			return sprintf(buf, "%s\n", "primary connector");
	case SECONDARY_CONNECTOR:
		if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
			return sprintf(buf, "%s\n", "secondary connector+");
		else
			return sprintf(buf, "%s\n", "secondary connector");
	default:
		return sprintf(buf, "%s\n", "no");
	}
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 167 100.00% 1 100.00%
Total 167 100.00% 1 100.00%



static ssize_t qeth_l3_dev_route4_show(struct device *dev,
			struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_route_show(card, &card->options.route4, buf);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 54 100.00% 1 100.00%
Total 54 100.00% 1 100.00%



static ssize_t qeth_l3_dev_route_store(struct qeth_card *card,
		struct qeth_routing_info *route, enum qeth_prot_versions prot,
		const char *buf, size_t count)
{
	enum qeth_routing_types old_route_type = route->type;
	int rc = 0;

	mutex_lock(&card->conf_mutex);
	if (sysfs_streq(buf, "no_router")) {
		route->type = NO_ROUTER;
	} else if (sysfs_streq(buf, "primary_connector")) {
		route->type = PRIMARY_CONNECTOR;
	} else if (sysfs_streq(buf, "secondary_connector")) {
		route->type = SECONDARY_CONNECTOR;
	} else if (sysfs_streq(buf, "primary_router")) {
		route->type = PRIMARY_ROUTER;
	} else if (sysfs_streq(buf, "secondary_router")) {
		route->type = SECONDARY_ROUTER;
	} else if (sysfs_streq(buf, "multicast_router")) {
		route->type = MULTICAST_ROUTER;
	} else {
		rc = -EINVAL;
		goto out;
	}
	if (qeth_card_hw_is_reachable(card) &&
	    (old_route_type != route->type)) {
		if (prot == QETH_PROT_IPV4)
			rc = qeth_l3_setrouting_v4(card);
		else if (prot == QETH_PROT_IPV6)
			rc = qeth_l3_setrouting_v6(card);
	}
out:
	if (rc)
		route->type = old_route_type;
	mutex_unlock(&card->conf_mutex);
	return rc ? rc : count;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 213 89.50% 2 40.00%
eugene crosser eugene crosser 15 6.30% 2 40.00%
stefan raspl stefan raspl 10 4.20% 1 20.00%
Total 238 100.00% 5 100.00%



static ssize_t qeth_l3_dev_route4_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_route_store(card, &card->options.route4,
				QETH_PROT_IPV4, buf, count);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 62 100.00% 1 100.00%
Total 62 100.00% 1 100.00%

static DEVICE_ATTR(route4, 0644, qeth_l3_dev_route4_show,
			qeth_l3_dev_route4_store);



static ssize_t qeth_l3_dev_route6_show(struct device *dev,
			struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_route_show(card, &card->options.route6, buf);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 54 100.00% 1 100.00%
Total 54 100.00% 1 100.00%



static ssize_t qeth_l3_dev_route6_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_route_store(card, &card->options.route6,
				QETH_PROT_IPV6, buf, count);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 62 100.00% 1 100.00%
Total 62 100.00% 1 100.00%

static DEVICE_ATTR(route6, 0644, qeth_l3_dev_route6_show,
			qeth_l3_dev_route6_store);



static ssize_t qeth_l3_dev_fake_broadcast_show(struct device *dev,
			struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return sprintf(buf, "%i\n", card->options.fake_broadcast? 1:0);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 57 100.00% 1 100.00%
Total 57 100.00% 1 100.00%



static ssize_t qeth_l3_dev_fake_broadcast_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);
	char *tmp;
	int i, rc = 0;

	if (!card)
		return -EINVAL;

	mutex_lock(&card->conf_mutex);
	if ((card->state != CARD_STATE_DOWN) &&
	    (card->state != CARD_STATE_RECOVER)) {
		rc = -EPERM;
		goto out;
	}

	i = simple_strtoul(buf, &tmp, 16);
	if ((i == 0) || (i == 1))
		card->options.fake_broadcast = i;
	else
		rc = -EINVAL;
out:
	mutex_unlock(&card->conf_mutex);
	return rc ? rc : count;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 147 100.00% 2 100.00%
Total 147 100.00% 2 100.00%

static DEVICE_ATTR(fake_broadcast, 0644, qeth_l3_dev_fake_broadcast_show,
		   qeth_l3_dev_fake_broadcast_store);



static ssize_t qeth_l3_dev_sniffer_show(struct device *dev,
		struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return sprintf(buf, "%i\n", card->options.sniffer ? 1 : 0);
}

Contributors
Person Tokens Prop Commits CommitProp
ursula braun ursula braun 57 100.00% 1 100.00%
Total 57 100.00% 1 100.00%



static ssize_t qeth_l3_dev_sniffer_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);
	int rc = 0;
	unsigned long i;

	if (!card)
		return -EINVAL;

	if (card->info.type != QETH_CARD_TYPE_IQD)
		return -EPERM;
	if (card->options.cq == QETH_CQ_ENABLED)
		return -EPERM;

	mutex_lock(&card->conf_mutex);
	if ((card->state != CARD_STATE_DOWN) &&
	    (card->state != CARD_STATE_RECOVER)) {
		rc = -EPERM;
		goto out;
	}

	rc = kstrtoul(buf, 16, &i);
	if (rc) {
		rc = -EINVAL;
		goto out;
	}
	switch (i) {
	case 0:
		card->options.sniffer = i;
		break;
	case 1:
		qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd);
		if (card->ssqd.qdioac2 & QETH_SNIFF_AVAIL) {
			card->options.sniffer = i;
			if (card->qdio.init_pool.buf_count !=
					QETH_IN_BUF_COUNT_MAX)
				qeth_realloc_buffer_pool(card,
					QETH_IN_BUF_COUNT_MAX);
		} else
			rc = -EPERM;
		break;
	default:
		rc = -EINVAL;
	}
out:
	mutex_unlock(&card->conf_mutex);
	return rc ? rc : count;
}

Contributors
Person Tokens Prop Commits CommitProp
ursula braun ursula braun 181 73.88% 2 40.00%
frank blaschka frank blaschka 63 25.71% 2 40.00%
jingoo han jingoo han 1 0.41% 1 20.00%
Total 245 100.00% 5 100.00%

static DEVICE_ATTR(sniffer, 0644, qeth_l3_dev_sniffer_show,
		qeth_l3_dev_sniffer_store);




static ssize_t qeth_l3_dev_hsuid_show(struct device *dev,
		struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);
	char tmp_hsuid[9];

	if (!card)
		return -EINVAL;

	if (card->info.type != QETH_CARD_TYPE_IQD)
		return -EPERM;

	if (card->state == CARD_STATE_DOWN)
		return -EPERM;

	memcpy(tmp_hsuid, card->options.hsuid, sizeof(tmp_hsuid));
	EBCASC(tmp_hsuid, 8);
	return sprintf(buf, "%s\n", tmp_hsuid);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 104 100.00% 2 100.00%
Total 104 100.00% 2 100.00%



static ssize_t qeth_l3_dev_hsuid_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);
	struct qeth_ipaddr *addr;
	char *tmp;
	int i;

	if (!card)
		return -EINVAL;

	if (card->info.type != QETH_CARD_TYPE_IQD)
		return -EPERM;
	if (card->state != CARD_STATE_DOWN &&
	    card->state != CARD_STATE_RECOVER)
		return -EPERM;
	if (card->options.sniffer)
		return -EPERM;
	if (card->options.cq == QETH_CQ_NOTAVAILABLE)
		return -EPERM;

	tmp = strsep((char **)&buf, "\n");
	if (strlen(tmp) > 8)
		return -EINVAL;

	if (card->options.hsuid[0]) {
		/* delete old ip address */
		addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
		if (addr != NULL) {
			addr->u.a6.addr.s6_addr32[0] = 0xfe800000;
			addr->u.a6.addr.s6_addr32[1] = 0x00000000;
			for (i = 8; i < 16; i++)
				addr->u.a6.addr.s6_addr[i] =
					card->options.hsuid[i - 8];
			addr->u.a6.pfxlen = 0;
			addr->type = QETH_IP_TYPE_NORMAL;
		} else
			return -ENOMEM;
		if (!qeth_l3_delete_ip(card, addr))
			kfree(addr);
		qeth_l3_set_ip_addr_list(card);
	}

	if (strlen(tmp) == 0) {
		/* delete ip address only */
		card->options.hsuid[0] = '\0';
		if (card->dev)
			memcpy(card->dev->perm_addr, card->options.hsuid, 9);
		qeth_configure_cq(card, QETH_CQ_DISABLED);
		return count;
	}

	if (qeth_configure_cq(card, QETH_CQ_ENABLED))
		return -EPERM;

	snprintf(card->options.hsuid, sizeof(card->options.hsuid),
		 "%-8s", tmp);
	ASCEBC(card->options.hsuid, 8);
	if (card->dev)
		memcpy(card->dev->perm_addr, card->options.hsuid, 9);

	addr = qeth_l3_get_addr_buffer(QETH_PROT_IPV6);
	if (addr != NULL) {
		addr->u.a6.addr.s6_addr32[0] = 0xfe800000;
		addr->u.a6.addr.s6_addr32[1] = 0x00000000;
		for (i = 8; i < 16; i++)
			addr->u.a6.addr.s6_addr[i] = card->options.hsuid[i - 8];
		addr->u.a6.pfxlen = 0;
		addr->type = QETH_IP_TYPE_NORMAL;
	} else
		return -ENOMEM;
	if (!qeth_l3_add_ip(card, addr))
		kfree(addr);
	qeth_l3_set_ip_addr_list(card);

	return count;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 523 98.87% 2 66.67%
kees cook kees cook 6 1.13% 1 33.33%
Total 529 100.00% 3 100.00%

static DEVICE_ATTR(hsuid, 0644, qeth_l3_dev_hsuid_show,
		   qeth_l3_dev_hsuid_store);



static struct attribute *qeth_l3_device_attrs[] = {
	&dev_attr_route4.attr,
	&dev_attr_route6.attr,
	&dev_attr_fake_broadcast.attr,
	&dev_attr_sniffer.attr,
	&dev_attr_hsuid.attr,
	NULL,
};


static struct attribute_group qeth_l3_device_attr_group = {
	.attrs = qeth_l3_device_attrs,
};



static ssize_t qeth_l3_dev_ipato_enable_show(struct device *dev,
			struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return sprintf(buf, "%i\n", card->ipato.enabled? 1:0);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 57 100.00% 1 100.00%
Total 57 100.00% 1 100.00%



static ssize_t qeth_l3_dev_ipato_enable_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);
	struct qeth_ipaddr *tmpipa, *t;
	int rc = 0;

	if (!card)
		return -EINVAL;

	mutex_lock(&card->conf_mutex);
	if ((card->state != CARD_STATE_DOWN) &&
	    (card->state != CARD_STATE_RECOVER)) {
		rc = -EPERM;
		goto out;
	}

	if (sysfs_streq(buf, "toggle")) {
		card->ipato.enabled = (card->ipato.enabled)? 0 : 1;
	} else if (sysfs_streq(buf, "1")) {
		card->ipato.enabled = 1;
		list_for_each_entry_safe(tmpipa, t, card->ip_tbd_list, entry) {
			if ((tmpipa->type == QETH_IP_TYPE_NORMAL) &&
				qeth_l3_is_addr_covered_by_ipato(card, tmpipa))
				tmpipa->set_flags |=
					QETH_IPA_SETIP_TAKEOVER_FLAG;
		}

	} else if (sysfs_streq(buf, "0")) {
		card->ipato.enabled = 0;
		list_for_each_entry_safe(tmpipa, t, card->ip_tbd_list, entry) {
			if (tmpipa->set_flags &
				QETH_IPA_SETIP_TAKEOVER_FLAG)
				tmpipa->set_flags &=
					~QETH_IPA_SETIP_TAKEOVER_FLAG;
		}
	} else
		rc = -EINVAL;
out:
	mutex_unlock(&card->conf_mutex);
	return rc ? rc : count;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 170 69.11% 2 50.00%
klaus-dieter wacker klaus-dieter wacker 70 28.46% 1 25.00%
eugene crosser eugene crosser 6 2.44% 1 25.00%
Total 246 100.00% 4 100.00%

static QETH_DEVICE_ATTR(ipato_enable, enable, 0644,
			qeth_l3_dev_ipato_enable_show,
			qeth_l3_dev_ipato_enable_store);



static ssize_t qeth_l3_dev_ipato_invert4_show(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return sprintf(buf, "%i\n", card->ipato.invert4? 1:0);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 57 100.00% 1 100.00%
Total 57 100.00% 1 100.00%



static ssize_t qeth_l3_dev_ipato_invert4_store(struct device *dev,
				struct device_attribute *attr,
				const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);
	int rc = 0;

	if (!card)
		return -EINVAL;

	mutex_lock(&card->conf_mutex);
	if (sysfs_streq(buf, "toggle"))
		card->ipato.invert4 = (card->ipato.invert4)? 0 : 1;
	else if (sysfs_streq(buf, "1"))
		card->ipato.invert4 = 1;
	else if (sysfs_streq(buf, "0"))
		card->ipato.invert4 = 0;
	else
		rc = -EINVAL;
	mutex_unlock(&card->conf_mutex);
	return rc ? rc : count;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 134 95.71% 2 66.67%
eugene crosser eugene crosser 6 4.29% 1 33.33%
Total 140 100.00% 3 100.00%

static QETH_DEVICE_ATTR(ipato_invert4, invert4, 0644,
			qeth_l3_dev_ipato_invert4_show,
			qeth_l3_dev_ipato_invert4_store);



static ssize_t qeth_l3_dev_ipato_add_show(char *buf, struct qeth_card *card,
			enum qeth_prot_versions proto)
{
	struct qeth_ipato_entry *ipatoe;
	unsigned long flags;
	char addr_str[40];
	int entry_len; /* length of 1 entry string, differs between v4 and v6 */
	int i = 0;

	entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
	/* add strlen for "/<mask>\n" */
	entry_len += (proto == QETH_PROT_IPV4)? 5 : 6;
	spin_lock_irqsave(&card->ip_lock, flags);
	list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
		if (ipatoe->proto != proto)
			continue;
		/* String must not be longer than PAGE_SIZE. So we check if
                 * string length gets near PAGE_SIZE. Then we can savely display
                 * the next IPv6 address (worst case, compared to IPv4) */
		if ((PAGE_SIZE - i) <= entry_len)
			break;
		qeth_l3_ipaddr_to_string(proto, ipatoe->addr, addr_str);
		i += snprintf(buf + i, PAGE_SIZE - i,
			      "%s/%i\n", addr_str, ipatoe->mask_bits);
	}
	spin_unlock_irqrestore(&card->ip_lock, flags);
	i += snprintf(buf + i, PAGE_SIZE - i, "\n");

	return i;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 169 100.00% 1 100.00%
Total 169 100.00% 1 100.00%



static ssize_t qeth_l3_dev_ipato_add4_show(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_ipato_add_show(buf, card, QETH_PROT_IPV4);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 49 100.00% 1 100.00%
Total 49 100.00% 1 100.00%



static int qeth_l3_parse_ipatoe(const char *buf, enum qeth_prot_versions proto,
		  u8 *addr, int *mask_bits)
{
	const char *start, *end;
	char *tmp;
	char buffer[40] = {0, };

	start = buf;
	/* get address string */
	end = strchr(start, '/');
	if (!end || (end - start >= 40)) {
		return -EINVAL;
	}
	strncpy(buffer, start, end - start);
	if (qeth_l3_string_to_ipaddr(buffer, proto, addr)) {
		return -EINVAL;
	}
	start = end + 1;
	*mask_bits = simple_strtoul(start, &tmp, 10);
	if (!strlen(start) ||
	    (tmp == start) ||
	    (*mask_bits > ((proto == QETH_PROT_IPV4) ? 32 : 128))) {
		return -EINVAL;
	}
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 165 100.00% 1 100.00%
Total 165 100.00% 1 100.00%



static ssize_t qeth_l3_dev_ipato_add_store(const char *buf, size_t count,
			 struct qeth_card *card, enum qeth_prot_versions proto)
{
	struct qeth_ipato_entry *ipatoe;
	u8 addr[16];
	int mask_bits;
	int rc = 0;

	mutex_lock(&card->conf_mutex);
	rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits);
	if (rc)
		goto out;

	ipatoe = kzalloc(sizeof(struct qeth_ipato_entry), GFP_KERNEL);
	if (!ipatoe) {
		rc = -ENOMEM;
		goto out;
	}
	ipatoe->proto = proto;
	memcpy(ipatoe->addr, addr, (proto == QETH_PROT_IPV4)? 4:16);
	ipatoe->mask_bits = mask_bits;

	rc = qeth_l3_add_ipato_entry(card, ipatoe);
	if (rc)
		kfree(ipatoe);
out:
	mutex_unlock(&card->conf_mutex);
	return rc ? rc : count;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 165 100.00% 2 100.00%
Total 165 100.00% 2 100.00%



static ssize_t qeth_l3_dev_ipato_add4_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_ipato_add_store(buf, count, card, QETH_PROT_IPV4);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%

static QETH_DEVICE_ATTR(ipato_add4, add4, 0644,
			qeth_l3_dev_ipato_add4_show,
			qeth_l3_dev_ipato_add4_store);



static ssize_t qeth_l3_dev_ipato_del_store(const char *buf, size_t count,
			 struct qeth_card *card, enum qeth_prot_versions proto)
{
	u8 addr[16];
	int mask_bits;
	int rc = 0;

	mutex_lock(&card->conf_mutex);
	rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits);
	if (!rc)
		qeth_l3_del_ipato_entry(card, proto, addr, mask_bits);
	mutex_unlock(&card->conf_mutex);
	return rc ? rc : count;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 90 100.00% 2 100.00%
Total 90 100.00% 2 100.00%



static ssize_t qeth_l3_dev_ipato_del4_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_ipato_del_store(buf, count, card, QETH_PROT_IPV4);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%

static QETH_DEVICE_ATTR(ipato_del4, del4, 0200, NULL,
			qeth_l3_dev_ipato_del4_store);



static ssize_t qeth_l3_dev_ipato_invert6_show(struct device *dev,
		struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return sprintf(buf, "%i\n", card->ipato.invert6? 1:0);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 57 100.00% 1 100.00%
Total 57 100.00% 1 100.00%



static ssize_t qeth_l3_dev_ipato_invert6_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);
	int rc = 0;

	if (!card)
		return -EINVAL;

	mutex_lock(&card->conf_mutex);
	if (sysfs_streq(buf, "toggle"))
		card->ipato.invert6 = (card->ipato.invert6)? 0 : 1;
	else if (sysfs_streq(buf, "1"))
		card->ipato.invert6 = 1;
	else if (sysfs_streq(buf, "0"))
		card->ipato.invert6 = 0;
	else
		rc = -EINVAL;
	mutex_unlock(&card->conf_mutex);
	return rc ? rc : count;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 134 95.71% 2 66.67%
eugene crosser eugene crosser 6 4.29% 1 33.33%
Total 140 100.00% 3 100.00%

static QETH_DEVICE_ATTR(ipato_invert6, invert6, 0644,
			qeth_l3_dev_ipato_invert6_show,
			qeth_l3_dev_ipato_invert6_store);




static ssize_t qeth_l3_dev_ipato_add6_show(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_ipato_add_show(buf, card, QETH_PROT_IPV6);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 49 100.00% 1 100.00%
Total 49 100.00% 1 100.00%



static ssize_t qeth_l3_dev_ipato_add6_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_ipato_add_store(buf, count, card, QETH_PROT_IPV6);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%

static QETH_DEVICE_ATTR(ipato_add6, add6, 0644,
			qeth_l3_dev_ipato_add6_show,
			qeth_l3_dev_ipato_add6_store);



static ssize_t qeth_l3_dev_ipato_del6_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_ipato_del_store(buf, count, card, QETH_PROT_IPV6);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%

static QETH_DEVICE_ATTR(ipato_del6, del6, 0200, NULL,
			qeth_l3_dev_ipato_del6_store);


static struct attribute *qeth_ipato_device_attrs[] = {
	&dev_attr_ipato_enable.attr,
	&dev_attr_ipato_invert4.attr,
	&dev_attr_ipato_add4.attr,
	&dev_attr_ipato_del4.attr,
	&dev_attr_ipato_invert6.attr,
	&dev_attr_ipato_add6.attr,
	&dev_attr_ipato_del6.attr,
	NULL,
};


static struct attribute_group qeth_device_ipato_group = {
	.name = "ipa_takeover",
	.attrs = qeth_ipato_device_attrs,
};



static ssize_t qeth_l3_dev_vipa_add_show(char *buf, struct qeth_card *card,
			enum qeth_prot_versions proto)
{
	struct qeth_ipaddr *ipaddr;
	char addr_str[40];
	int entry_len; /* length of 1 entry string, differs between v4 and v6 */
	unsigned long flags;
	int i = 0;

	entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
	entry_len += 2; /* \n + terminator */
	spin_lock_irqsave(&card->ip_lock, flags);
	list_for_each_entry(ipaddr, &card->ip_list, entry) {
		if (ipaddr->proto != proto)
			continue;
		if (ipaddr->type != QETH_IP_TYPE_VIPA)
			continue;
		/* String must not be longer than PAGE_SIZE. So we check if
                 * string length gets near PAGE_SIZE. Then we can savely display
                 * the next IPv6 address (worst case, compared to IPv4) */
		if ((PAGE_SIZE - i) <= entry_len)
			break;
		qeth_l3_ipaddr_to_string(proto, (const u8 *)&ipaddr->u,
			addr_str);
		i += snprintf(buf + i, PAGE_SIZE - i, "%s\n", addr_str);
	}
	spin_unlock_irqrestore(&card->ip_lock, flags);
	i += snprintf(buf + i, PAGE_SIZE - i, "\n");

	return i;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 172 100.00% 1 100.00%
Total 172 100.00% 1 100.00%



static ssize_t qeth_l3_dev_vipa_add4_show(struct device *dev,
			struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_vipa_add_show(buf, card, QETH_PROT_IPV4);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 49 100.00% 1 100.00%
Total 49 100.00% 1 100.00%



static int qeth_l3_parse_vipae(const char *buf, enum qeth_prot_versions proto,
		 u8 *addr)
{
	if (qeth_l3_string_to_ipaddr(buf, proto, addr)) {
		return -EINVAL;
	}
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 39 100.00% 1 100.00%
Total 39 100.00% 1 100.00%



static ssize_t qeth_l3_dev_vipa_add_store(const char *buf, size_t count,
			struct qeth_card *card, enum qeth_prot_versions proto)
{
	u8 addr[16] = {0, };
	int rc;

	mutex_lock(&card->conf_mutex);
	rc = qeth_l3_parse_vipae(buf, proto, addr);
	if (!rc)
		rc = qeth_l3_add_vipa(card, proto, addr);
	mutex_unlock(&card->conf_mutex);
	return rc ? rc : count;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 86 100.00% 2 100.00%
Total 86 100.00% 2 100.00%



static ssize_t qeth_l3_dev_vipa_add4_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV4);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%

static QETH_DEVICE_ATTR(vipa_add4, add4, 0644,
			qeth_l3_dev_vipa_add4_show,
			qeth_l3_dev_vipa_add4_store);



static ssize_t qeth_l3_dev_vipa_del_store(const char *buf, size_t count,
			 struct qeth_card *card, enum qeth_prot_versions proto)
{
	u8 addr[16];
	int rc;

	mutex_lock(&card->conf_mutex);
	rc = qeth_l3_parse_vipae(buf, proto, addr);
	if (!rc)
		qeth_l3_del_vipa(card, proto, addr);
	mutex_unlock(&card->conf_mutex);
	return rc ? rc : count;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 80 100.00% 2 100.00%
Total 80 100.00% 2 100.00%



static ssize_t qeth_l3_dev_vipa_del4_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV4);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%

static QETH_DEVICE_ATTR(vipa_del4, del4, 0200, NULL,
			qeth_l3_dev_vipa_del4_store);



static ssize_t qeth_l3_dev_vipa_add6_show(struct device *dev,
				struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_vipa_add_show(buf, card, QETH_PROT_IPV6);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 49 100.00% 1 100.00%
Total 49 100.00% 1 100.00%



static ssize_t qeth_l3_dev_vipa_add6_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_vipa_add_store(buf, count, card, QETH_PROT_IPV6);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%

static QETH_DEVICE_ATTR(vipa_add6, add6, 0644,
			qeth_l3_dev_vipa_add6_show,
			qeth_l3_dev_vipa_add6_store);



static ssize_t qeth_l3_dev_vipa_del6_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_vipa_del_store(buf, count, card, QETH_PROT_IPV6);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%

static QETH_DEVICE_ATTR(vipa_del6, del6, 0200, NULL,
			qeth_l3_dev_vipa_del6_store);


static struct attribute *qeth_vipa_device_attrs[] = {
	&dev_attr_vipa_add4.attr,
	&dev_attr_vipa_del4.attr,
	&dev_attr_vipa_add6.attr,
	&dev_attr_vipa_del6.attr,
	NULL,
};


static struct attribute_group qeth_device_vipa_group = {
	.name = "vipa",
	.attrs = qeth_vipa_device_attrs,
};



static ssize_t qeth_l3_dev_rxip_add_show(char *buf, struct qeth_card *card,
		       enum qeth_prot_versions proto)
{
	struct qeth_ipaddr *ipaddr;
	char addr_str[40];
	int entry_len; /* length of 1 entry string, differs between v4 and v6 */
	unsigned long flags;
	int i = 0;

	entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
	entry_len += 2; /* \n + terminator */
	spin_lock_irqsave(&card->ip_lock, flags);
	list_for_each_entry(ipaddr, &card->ip_list, entry) {
		if (ipaddr->proto != proto)
			continue;
		if (ipaddr->type != QETH_IP_TYPE_RXIP)
			continue;
		/* String must not be longer than PAGE_SIZE. So we check if
                 * string length gets near PAGE_SIZE. Then we can savely display
                 * the next IPv6 address (worst case, compared to IPv4) */
		if ((PAGE_SIZE - i) <= entry_len)
			break;
		qeth_l3_ipaddr_to_string(proto, (const u8 *)&ipaddr->u,
			addr_str);
		i += snprintf(buf + i, PAGE_SIZE - i, "%s\n", addr_str);
	}
	spin_unlock_irqrestore(&card->ip_lock, flags);
	i += snprintf(buf + i, PAGE_SIZE - i, "\n");

	return i;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 172 100.00% 1 100.00%
Total 172 100.00% 1 100.00%



static ssize_t qeth_l3_dev_rxip_add4_show(struct device *dev,
			struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_rxip_add_show(buf, card, QETH_PROT_IPV4);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 49 100.00% 1 100.00%
Total 49 100.00% 1 100.00%



static int qeth_l3_parse_rxipe(const char *buf, enum qeth_prot_versions proto,
		 u8 *addr)
{
	if (qeth_l3_string_to_ipaddr(buf, proto, addr)) {
		return -EINVAL;
	}
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 39 100.00% 1 100.00%
Total 39 100.00% 1 100.00%



static ssize_t qeth_l3_dev_rxip_add_store(const char *buf, size_t count,
			struct qeth_card *card, enum qeth_prot_versions proto)
{
	u8 addr[16] = {0, };
	int rc;

	mutex_lock(&card->conf_mutex);
	rc = qeth_l3_parse_rxipe(buf, proto, addr);
	if (!rc)
		rc = qeth_l3_add_rxip(card, proto, addr);
	mutex_unlock(&card->conf_mutex);
	return rc ? rc : count;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 86 100.00% 2 100.00%
Total 86 100.00% 2 100.00%



static ssize_t qeth_l3_dev_rxip_add4_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV4);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%

static QETH_DEVICE_ATTR(rxip_add4, add4, 0644,
			qeth_l3_dev_rxip_add4_show,
			qeth_l3_dev_rxip_add4_store);



static ssize_t qeth_l3_dev_rxip_del_store(const char *buf, size_t count,
			struct qeth_card *card, enum qeth_prot_versions proto)
{
	u8 addr[16];
	int rc;

	mutex_lock(&card->conf_mutex);
	rc = qeth_l3_parse_rxipe(buf, proto, addr);
	if (!rc)
		qeth_l3_del_rxip(card, proto, addr);
	mutex_unlock(&card->conf_mutex);
	return rc ? rc : count;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 80 100.00% 2 100.00%
Total 80 100.00% 2 100.00%



static ssize_t qeth_l3_dev_rxip_del4_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV4);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%

static QETH_DEVICE_ATTR(rxip_del4, del4, 0200, NULL,
			qeth_l3_dev_rxip_del4_store);



static ssize_t qeth_l3_dev_rxip_add6_show(struct device *dev,
		struct device_attribute *attr, char *buf)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_rxip_add_show(buf, card, QETH_PROT_IPV6);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 49 100.00% 1 100.00%
Total 49 100.00% 1 100.00%



static ssize_t qeth_l3_dev_rxip_add6_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_rxip_add_store(buf, count, card, QETH_PROT_IPV6);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%

static QETH_DEVICE_ATTR(rxip_add6, add6, 0644,
			qeth_l3_dev_rxip_add6_show,
			qeth_l3_dev_rxip_add6_store);



static ssize_t qeth_l3_dev_rxip_del6_store(struct device *dev,
		struct device_attribute *attr, const char *buf, size_t count)
{
	struct qeth_card *card = dev_get_drvdata(dev);

	if (!card)
		return -EINVAL;

	return qeth_l3_dev_rxip_del_store(buf, count, card, QETH_PROT_IPV6);
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 55 100.00% 1 100.00%
Total 55 100.00% 1 100.00%

static QETH_DEVICE_ATTR(rxip_del6, del6, 0200, NULL,
			qeth_l3_dev_rxip_del6_store);


static struct attribute *qeth_rxip_device_attrs[] = {
	&dev_attr_rxip_add4.attr,
	&dev_attr_rxip_del4.attr,
	&dev_attr_rxip_add6.attr,
	&dev_attr_rxip_del6.attr,
	NULL,
};


static struct attribute_group qeth_device_rxip_group = {
	.name = "rxip",
	.attrs = qeth_rxip_device_attrs,
};



int qeth_l3_create_device_attributes(struct device *dev)
{
	int ret;

	ret = sysfs_create_group(&dev->kobj, &qeth_l3_device_attr_group);
	if (ret)
		return ret;

	ret = sysfs_create_group(&dev->kobj, &qeth_device_ipato_group);
	if (ret) {
		sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group);
		return ret;
	}

	ret = sysfs_create_group(&dev->kobj, &qeth_device_vipa_group);
	if (ret) {
		sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group);
		sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
		return ret;
	}

	ret = sysfs_create_group(&dev->kobj, &qeth_device_rxip_group);
	if (ret) {
		sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group);
		sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
		sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group);
		return ret;
	}
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 168 100.00% 1 100.00%
Total 168 100.00% 1 100.00%



void qeth_l3_remove_device_attributes(struct device *dev)
{
	sysfs_remove_group(&dev->kobj, &qeth_l3_device_attr_group);
	sysfs_remove_group(&dev->kobj, &qeth_device_ipato_group);
	sysfs_remove_group(&dev->kobj, &qeth_device_vipa_group);
	sysfs_remove_group(&dev->kobj, &qeth_device_rxip_group);
}
Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 54 100.00% 1 100.00%
Total 54 100.00% 1 100.00%

Overall Contributors
Person Tokens Prop Commits CommitProp
frank blaschka frank blaschka 5118 93.14% 3 23.08%
ursula braun ursula braun 253 4.60% 2 15.38%
klaus-dieter wacker klaus-dieter wacker 70 1.27% 1 7.69%
eugene crosser eugene crosser 33 0.60% 2 15.38%
stefan raspl stefan raspl 10 0.18% 1 7.69%
kees cook kees cook 6 0.11% 1 7.69%
tejun heo tejun heo 3 0.05% 1 7.69%
jingoo han jingoo han 1 0.02% 1 7.69%
heiko carstens heiko carstens 1 0.02% 1 7.69%
Total 5495 100.00% 13 100.00%
  Directory: drivers/s390/net

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
	Person	Tokens	Prop	Commits	CommitProp
frank blaschka	frank blaschka	167	100.00%	1	100.00%
	Total	167	100.00%	1	100.00%
cregit-Linux how code gets into the kernel

Release 4.7 drivers/s390/net/qeth_l3_sys.c

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Contributors

Overall Contributors
