summaryrefslogtreecommitdiffstats
path: root/drivers/s390/net/qeth_l3_sys.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/s390/net/qeth_l3_sys.c')
-rw-r--r--drivers/s390/net/qeth_l3_sys.c1172
1 files changed, 1172 insertions, 0 deletions
diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c
new file mode 100644
index 00000000000..d979bb26522
--- /dev/null
+++ b/drivers/s390/net/qeth_l3_sys.c
@@ -0,0 +1,1172 @@
+/*
+ * drivers/s390/net/qeth_l3_sys.c
+ *
+ * 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");
+ }
+}
+
+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);
+}
+
+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;
+ char *tmp;
+ int rc = 0;
+
+ tmp = strsep((char **) &buf, "\n");
+ mutex_lock(&card->conf_mutex);
+ if (!strcmp(tmp, "no_router")) {
+ route->type = NO_ROUTER;
+ } else if (!strcmp(tmp, "primary_connector")) {
+ route->type = PRIMARY_CONNECTOR;
+ } else if (!strcmp(tmp, "secondary_connector")) {
+ route->type = SECONDARY_CONNECTOR;
+ } else if (!strcmp(tmp, "primary_router")) {
+ route->type = PRIMARY_ROUTER;
+ } else if (!strcmp(tmp, "secondary_router")) {
+ route->type = SECONDARY_ROUTER;
+ } else if (!strcmp(tmp, "multicast_router")) {
+ route->type = MULTICAST_ROUTER;
+ } else {
+ rc = -EINVAL;
+ goto out;
+ }
+ if (((card->state == CARD_STATE_SOFTSETUP) ||
+ (card->state == CARD_STATE_UP)) &&
+ (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:
+ 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);
+
+ if (!card)
+ return -EINVAL;
+
+ 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);
+
+ if (!card)
+ return -EINVAL;
+
+ 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);
+
+ if (!card)
+ return -EINVAL;
+
+ 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_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);
+}
+
+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;
+}
+
+static DEVICE_ATTR(fake_broadcast, 0644, qeth_l3_dev_fake_broadcast_show,
+ qeth_l3_dev_fake_broadcast_store);
+
+static ssize_t qeth_l3_dev_broadcast_mode_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct qeth_card *card = dev_get_drvdata(dev);
+
+ if (!card)
+ return -EINVAL;
+
+ if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
+ (card->info.link_type == QETH_LINK_TYPE_LANE_TR)))
+ return sprintf(buf, "n/a\n");
+
+ return sprintf(buf, "%s\n", (card->options.broadcast_mode ==
+ QETH_TR_BROADCAST_ALLRINGS)?
+ "all rings":"local");
+}
+
+static ssize_t qeth_l3_dev_broadcast_mode_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 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 (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
+ (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ tmp = strsep((char **) &buf, "\n");
+
+ if (!strcmp(tmp, "local"))
+ card->options.broadcast_mode = QETH_TR_BROADCAST_LOCAL;
+ else if (!strcmp(tmp, "all_rings"))
+ card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS;
+ else
+ rc = -EINVAL;
+out:
+ mutex_unlock(&card->conf_mutex);
+ return rc ? rc : count;
+}
+
+static DEVICE_ATTR(broadcast_mode, 0644, qeth_l3_dev_broadcast_mode_show,
+ qeth_l3_dev_broadcast_mode_store);
+
+static ssize_t qeth_l3_dev_canonical_macaddr_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct qeth_card *card = dev_get_drvdata(dev);
+
+ if (!card)
+ return -EINVAL;
+
+ if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
+ (card->info.link_type == QETH_LINK_TYPE_LANE_TR)))
+ return sprintf(buf, "n/a\n");
+
+ return sprintf(buf, "%i\n", (card->options.macaddr_mode ==
+ QETH_TR_MACADDR_CANONICAL)? 1:0);
+}
+
+static ssize_t qeth_l3_dev_canonical_macaddr_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;
+ }
+
+ if (!((card->info.link_type == QETH_LINK_TYPE_HSTR) ||
+ (card->info.link_type == QETH_LINK_TYPE_LANE_TR))) {
+ rc = -EINVAL;
+ goto out;
+ }
+
+ i = simple_strtoul(buf, &tmp, 16);
+ if ((i == 0) || (i == 1))
+ card->options.macaddr_mode = i?
+ QETH_TR_MACADDR_CANONICAL :
+ QETH_TR_MACADDR_NONCANONICAL;
+ else
+ rc = -EINVAL;
+out:
+ mutex_unlock(&card->conf_mutex);
+ return rc ? rc : count;
+}
+
+static DEVICE_ATTR(canonical_macaddr, 0644, qeth_l3_dev_canonical_macaddr_show,
+ qeth_l3_dev_canonical_macaddr_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);
+}
+
+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 = strict_strtoul(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;
+}
+
+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);
+}
+
+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;
+
+ for (i = 0; i < 8; i++)
+ card->options.hsuid[i] = ' ';
+ card->options.hsuid[8] = '\0';
+ strncpy(card->options.hsuid, tmp, strlen(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;
+}
+
+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_broadcast_mode.attr,
+ &dev_attr_canonical_macaddr.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);
+}
+
+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;
+ char *tmp;
+ 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;
+ }
+
+ tmp = strsep((char **) &buf, "\n");
+ if (!strcmp(tmp, "toggle")) {
+ card->ipato.enabled = (card->ipato.enabled)? 0 : 1;
+ } else if (!strcmp(tmp, "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 (!strcmp(tmp, "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;
+}
+
+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);
+}
+
+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);
+ char *tmp;
+ int rc = 0;
+
+ if (!card)
+ return -EINVAL;
+
+ mutex_lock(&card->conf_mutex);
+ tmp = strsep((char **) &buf, "\n");
+ if (!strcmp(tmp, "toggle")) {
+ card->ipato.invert4 = (card->ipato.invert4)? 0 : 1;
+ } else if (!strcmp(tmp, "1")) {
+ card->ipato.invert4 = 1;
+ } else if (!strcmp(tmp, "0")) {
+ card->ipato.invert4 = 0;
+ } else
+ rc = -EINVAL;
+ mutex_unlock(&card->conf_mutex);
+ 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;
+ 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;
+}
+
+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);
+}
+
+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;
+}
+
+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;
+}
+
+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);
+}
+
+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;
+}
+
+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);
+}
+
+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);
+}
+
+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);
+ char *tmp;
+ int rc = 0;
+
+ if (!card)
+ return -EINVAL;
+
+ mutex_lock(&card->conf_mutex);
+ tmp = strsep((char **) &buf, "\n");
+ if (!strcmp(tmp, "toggle")) {
+ card->ipato.invert6 = (card->ipato.invert6)? 0 : 1;
+ } else if (!strcmp(tmp, "1")) {
+ card->ipato.invert6 = 1;
+ } else if (!strcmp(tmp, "0")) {
+ card->ipato.invert6 = 0;
+ } else
+ rc = -EINVAL;
+ mutex_unlock(&card->conf_mutex);
+ 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);
+
+ if (!card)
+ return -EINVAL;
+
+ 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);
+
+ if (!card)
+ return -EINVAL;
+
+ 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);
+
+ if (!card)
+ return -EINVAL;
+
+ 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 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;
+}
+
+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);
+}
+
+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;
+}
+
+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;
+}
+
+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);
+}
+
+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;
+}
+
+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);
+}
+
+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);
+}
+
+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);
+}
+
+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);
+}
+
+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;
+}
+
+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);
+}
+
+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;
+}
+
+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;
+}
+
+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);
+}
+
+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;
+}
+
+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);
+}
+
+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);
+}
+
+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);
+}
+
+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);
+}
+
+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;
+}
+
+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);
+}