diff options
Diffstat (limited to 'drivers/s390/net/qeth_l3_sys.c')
| -rw-r--r-- | drivers/s390/net/qeth_l3_sys.c | 110 |
1 files changed, 109 insertions, 1 deletions
diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c index cd99210296e2..0ea2fbfe0e99 100644 --- a/drivers/s390/net/qeth_l3_sys.c +++ b/drivers/s390/net/qeth_l3_sys.c @@ -9,7 +9,7 @@ */ #include <linux/slab.h> - +#include <asm/ebcdic.h> #include "qeth_l3.h" #define QETH_DEVICE_ATTR(_id, _name, _mode, _show, _store) \ @@ -308,6 +308,8 @@ static ssize_t qeth_l3_dev_sniffer_store(struct device *dev, 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) && @@ -347,6 +349,111 @@ out: 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, @@ -354,6 +461,7 @@ static struct attribute *qeth_l3_device_attrs[] = { &dev_attr_broadcast_mode.attr, &dev_attr_canonical_macaddr.attr, &dev_attr_sniffer.attr, + &dev_attr_hsuid.attr, NULL, }; |