// SPDX-License-Identifier: GPL-2.0
/*
 *    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 <linux/hashtable.h>
#include <linux/inet.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 int qeth_l3_string_to_ipaddr(const char *buf,
                                    enum qeth_prot_versions proto, u8 *addr)
{
        const char *end;

        if ((proto == QETH_PROT_IPV4 && !in4_pton(buf, -1, addr, -1, &end)) ||
            (proto == QETH_PROT_IPV6 && !in6_pton(buf, -1, addr, -1, &end)))
                return -EINVAL;
        return 0;
}

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 sysfs_emit(buf, "%s\n", "primary router");
        case SECONDARY_ROUTER:
                return sysfs_emit(buf, "%s\n", "secondary router");
        case MULTICAST_ROUTER:
                if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
                        return sysfs_emit(buf, "%s\n", "multicast router+");
                else
                        return sysfs_emit(buf, "%s\n", "multicast router");
        case PRIMARY_CONNECTOR:
                if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
                        return sysfs_emit(buf, "%s\n", "primary connector+");
                else
                        return sysfs_emit(buf, "%s\n", "primary connector");
        case SECONDARY_CONNECTOR:
                if (card->info.broadcast_capable == QETH_BROADCAST_WITHOUT_ECHO)
                        return sysfs_emit(buf, "%s\n", "secondary connector+");
                else
                        return sysfs_emit(buf, "%s\n", "secondary connector");
        default:
                return sysfs_emit(buf, "%s\n", "no");
        }
}

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);

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

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;
}

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);

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

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);

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

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);

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

static DEVICE_ATTR(route6, 0644, qeth_l3_dev_route6_show,
                        qeth_l3_dev_route6_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);

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

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 (!IS_IQD(card))
                return -EPERM;
        if (card->options.cq == QETH_CQ_ENABLED)
                return -EPERM;

        mutex_lock(&card->conf_mutex);
        if (card->state != CARD_STATE_DOWN) {
                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 & CHSC_AC2_SNIFFER_AVAILABLE) {
                        card->options.sniffer = i;
                        qeth_resize_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;
}

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 (!IS_IQD(card))
                return -EPERM;

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

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);
        int rc = 0;
        char *tmp;

        if (!IS_IQD(card))
                return -EPERM;

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

        if (card->options.sniffer) {
                rc = -EPERM;
                goto out;
        }

        if (card->options.cq == QETH_CQ_NOTAVAILABLE) {
                rc = -EPERM;
                goto out;
        }

        tmp = strsep((char **)&buf, "\n");
        if (strlen(tmp) > 8) {
                rc = -EINVAL;
                goto out;
        }

        if (card->options.hsuid[0])
                /* delete old ip address */
                qeth_l3_modify_hsuid(card, false);

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

        if (qeth_configure_cq(card, QETH_CQ_ENABLED)) {
                rc = -EPERM;
                goto out;
        }

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

        rc = qeth_l3_modify_hsuid(card, true);

out:
        mutex_unlock(&card->conf_mutex);
        return rc ? rc : count;
}

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_sniffer.attr,
        &dev_attr_hsuid.attr,
        NULL,
};

static const 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);

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

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);
        bool enable;
        int rc = 0;

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

        mutex_lock(&card->ip_lock);
        if (sysfs_streq(buf, "toggle")) {
                enable = !card->ipato.enabled;
        } else if (kstrtobool(buf, &enable)) {
                rc = -EINVAL;
                goto unlock_ip;
        }

        if (card->ipato.enabled != enable) {
                card->ipato.enabled = enable;
                qeth_l3_update_ipato(card);
        }

unlock_ip:
        mutex_unlock(&card->ip_lock);
out:
        mutex_unlock(&card->conf_mutex);
        return rc ? rc : count;
}

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);

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

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);
        bool invert;
        int rc = 0;

        mutex_lock(&card->ip_lock);
        if (sysfs_streq(buf, "toggle")) {
                invert = !card->ipato.invert4;
        } else if (kstrtobool(buf, &invert)) {
                rc = -EINVAL;
                goto out;
        }

        if (card->ipato.invert4 != invert) {
                card->ipato.invert4 = invert;
                qeth_l3_update_ipato(card);
        }

out:
        mutex_unlock(&card->ip_lock);
        return rc ? rc : count;
}

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;
        char addr_str[INET6_ADDRSTRLEN];
        int offset = 0;

        mutex_lock(&card->ip_lock);
        list_for_each_entry(ipatoe, &card->ipato.entries, entry) {
                if (ipatoe->proto != proto)
                        continue;

                qeth_l3_ipaddr_to_string(proto, ipatoe->addr, addr_str);
                offset += sysfs_emit_at(buf, offset, "%s/%i\n",
                                        addr_str, ipatoe->mask_bits);
        }
        mutex_unlock(&card->ip_lock);

        return offset ? offset : sysfs_emit(buf, "\n");
}

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);

        return qeth_l3_dev_ipato_add_show(buf, card, QETH_PROT_IPV4);
}

static int qeth_l3_parse_ipatoe(const char *buf, enum qeth_prot_versions proto,
                                u8 *addr, unsigned int *mask_bits)
{
        char *sep;
        int rc;

        /* Expected input pattern: %addr/%mask */
        sep = strnchr(buf, INET6_ADDRSTRLEN, '/');
        if (!sep)
                return -EINVAL;

        /* Terminate the %addr sub-string, and parse it: */
        *sep = '\0';
        rc = qeth_l3_string_to_ipaddr(buf, proto, addr);
        if (rc)
                return rc;

        rc = kstrtouint(sep + 1, 10, mask_bits);
        if (rc)
                return rc;

        if (*mask_bits > ((proto == QETH_PROT_IPV4) ? 32 : 128))
                return -EINVAL;

        return 0;
}

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;
        unsigned int mask_bits;
        u8 addr[16];
        int rc = 0;

        rc = qeth_l3_parse_ipatoe(buf, proto, addr, &mask_bits);
        if (rc)
                return rc;

        ipatoe = kzalloc_obj(struct qeth_ipato_entry);
        if (!ipatoe)
                return -ENOMEM;

        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);

        return rc ? rc : count;
}

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);

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

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)
{
        unsigned int mask_bits;
        u8 addr[16];
        int rc = 0;

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

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);

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

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);

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

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);
        bool invert;
        int rc = 0;

        mutex_lock(&card->ip_lock);
        if (sysfs_streq(buf, "toggle")) {
                invert = !card->ipato.invert6;
        } else if (kstrtobool(buf, &invert)) {
                rc = -EINVAL;
                goto out;
        }

        if (card->ipato.invert6 != invert) {
                card->ipato.invert6 = invert;
                qeth_l3_update_ipato(card);
        }

out:
        mutex_unlock(&card->ip_lock);
        return rc ? rc : count;
}

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);

        return qeth_l3_dev_ipato_add_show(buf, card, QETH_PROT_IPV6);
}

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);

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

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);

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

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

static ssize_t qeth_l3_dev_ip_add_show(struct device *dev, char *buf,
                                       enum qeth_prot_versions proto,
                                       enum qeth_ip_types type)
{
        struct qeth_card *card = dev_get_drvdata(dev);
        char addr_str[INET6_ADDRSTRLEN];
        struct qeth_ipaddr *ipaddr;
        int offset = 0;
        int i;

        mutex_lock(&card->ip_lock);
        hash_for_each(card->ip_htable, i, ipaddr, hnode) {
                if (ipaddr->proto != proto || ipaddr->type != type)
                        continue;

                qeth_l3_ipaddr_to_string(proto, (u8 *)&ipaddr->u, addr_str);
                offset += sysfs_emit_at(buf, offset, "%s\n", addr_str);
        }
        mutex_unlock(&card->ip_lock);

        return offset ? offset : sysfs_emit(buf, "\n");
}

static ssize_t qeth_l3_dev_vipa_add4_show(struct device *dev,
                                          struct device_attribute *attr,
                                          char *buf)
{
        return qeth_l3_dev_ip_add_show(dev, buf, QETH_PROT_IPV4,
                                       QETH_IP_TYPE_VIPA);
}

static ssize_t qeth_l3_vipa_store(struct device *dev, const char *buf, bool add,
                                  size_t count, enum qeth_prot_versions proto)
{
        struct qeth_card *card = dev_get_drvdata(dev);
        u8 addr[16] = {0, };
        int rc;

        rc = qeth_l3_string_to_ipaddr(buf, proto, addr);
        if (!rc)
                rc = qeth_l3_modify_rxip_vipa(card, add, addr,
                                              QETH_IP_TYPE_VIPA, proto);
        return rc ? rc : count;
}

static ssize_t qeth_l3_dev_vipa_add4_store(struct device *dev,
                struct device_attribute *attr, const char *buf, size_t count)
{
        return qeth_l3_vipa_store(dev, buf, true, count, QETH_PROT_IPV4);
}

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_del4_store(struct device *dev,
                struct device_attribute *attr, const char *buf, size_t count)
{
        return qeth_l3_vipa_store(dev, buf, false, count, QETH_PROT_IPV4);
}

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)
{
        return qeth_l3_dev_ip_add_show(dev, buf, QETH_PROT_IPV6,
                                       QETH_IP_TYPE_VIPA);
}

static ssize_t qeth_l3_dev_vipa_add6_store(struct device *dev,
                struct device_attribute *attr, const char *buf, size_t count)
{
        return qeth_l3_vipa_store(dev, buf, true, count, QETH_PROT_IPV6);
}

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)
{
        return qeth_l3_vipa_store(dev, buf, false, count, QETH_PROT_IPV6);
}

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

static ssize_t qeth_l3_dev_rxip_add4_show(struct device *dev,
                                          struct device_attribute *attr,
                                          char *buf)
{
        return qeth_l3_dev_ip_add_show(dev, buf, QETH_PROT_IPV4,
                                       QETH_IP_TYPE_RXIP);
}

static int qeth_l3_parse_rxipe(const char *buf, enum qeth_prot_versions proto,
                 u8 *addr)
{
        __be32 ipv4_addr;
        struct in6_addr ipv6_addr;

        if (qeth_l3_string_to_ipaddr(buf, proto, addr)) {
                return -EINVAL;
        }
        if (proto == QETH_PROT_IPV4) {
                memcpy(&ipv4_addr, addr, sizeof(ipv4_addr));
                if (ipv4_is_multicast(ipv4_addr)) {
                        QETH_DBF_MESSAGE(2, "multicast rxip not supported.\n");
                        return -EINVAL;
                }
        } else if (proto == QETH_PROT_IPV6) {
                memcpy(&ipv6_addr, addr, sizeof(ipv6_addr));
                if (ipv6_addr_is_multicast(&ipv6_addr)) {
                        QETH_DBF_MESSAGE(2, "multicast rxip not supported.\n");
                        return -EINVAL;
                }
        }

        return 0;
}

static ssize_t qeth_l3_rxip_store(struct device *dev, const char *buf, bool add,
                                  size_t count, enum qeth_prot_versions proto)
{
        struct qeth_card *card = dev_get_drvdata(dev);
        u8 addr[16] = {0, };
        int rc;

        rc = qeth_l3_parse_rxipe(buf, proto, addr);
        if (!rc)
                rc = qeth_l3_modify_rxip_vipa(card, add, addr,
                                              QETH_IP_TYPE_RXIP, proto);
        return rc ? rc : count;
}

static ssize_t qeth_l3_dev_rxip_add4_store(struct device *dev,
                struct device_attribute *attr, const char *buf, size_t count)
{
        return qeth_l3_rxip_store(dev, buf, true, count, QETH_PROT_IPV4);
}

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_del4_store(struct device *dev,
                struct device_attribute *attr, const char *buf, size_t count)
{
        return qeth_l3_rxip_store(dev, buf, false, count, QETH_PROT_IPV4);
}

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)
{
        return qeth_l3_dev_ip_add_show(dev, buf, QETH_PROT_IPV6,
                                       QETH_IP_TYPE_RXIP);
}

static ssize_t qeth_l3_dev_rxip_add6_store(struct device *dev,
                struct device_attribute *attr, const char *buf, size_t count)
{
        return qeth_l3_rxip_store(dev, buf, true, count, QETH_PROT_IPV6);
}

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)
{
        return qeth_l3_rxip_store(dev, buf, false, count, QETH_PROT_IPV6);
}

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

const struct attribute_group *qeth_l3_attr_groups[] = {
        &qeth_l3_device_attr_group,
        &qeth_device_ipato_group,
        &qeth_device_vipa_group,
        &qeth_device_rxip_group,
        NULL,
};