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b24413180f
linux/drivers/s390/net/qeth_l3_sys.c
Greg Kroah-Hartman b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-02 11:10:55 +01:00

1081 lines
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// 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 "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;
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);
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_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 = 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;
}
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;
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)
return -ENOMEM;
addr->u.a6.addr.s6_addr32[0] = cpu_to_be32(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;
spin_lock_bh(&card->ip_lock);
qeth_l3_delete_ip(card, addr);
spin_unlock_bh(&card->ip_lock);
kfree(addr);
}
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] = cpu_to_be32(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;
spin_lock_bh(&card->ip_lock);
qeth_l3_add_ip(card, addr);
spin_unlock_bh(&card->ip_lock);
kfree(addr);
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_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);
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 *addr;
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 (sysfs_streq(buf, "toggle")) {
card->ipato.enabled = (card->ipato.enabled)? 0 : 1;
} else if (sysfs_streq(buf, "1")) {
card->ipato.enabled = 1;
hash_for_each(card->ip_htable, i, addr, hnode) {
if ((addr->type == QETH_IP_TYPE_NORMAL) &&
qeth_l3_is_addr_covered_by_ipato(card, addr))
addr->set_flags |=
QETH_IPA_SETIP_TAKEOVER_FLAG;
}
} else if (sysfs_streq(buf, "0")) {
card->ipato.enabled = 0;
hash_for_each(card->ip_htable, i, addr, hnode) {
if (addr->set_flags &
QETH_IPA_SETIP_TAKEOVER_FLAG)
addr->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);
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;
}
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[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_bh(&card->ip_lock);
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_bh(&card->ip_lock);
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);
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;
}
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 const 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 str_len = 0;
int entry_len; /* length of 1 entry string, differs between v4 and v6 */
int i;
entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
entry_len += 2; /* \n + terminator */
spin_lock_bh(&card->ip_lock);
hash_for_each(card->ip_htable, i, ipaddr, hnode) {
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 - str_len) <= entry_len)
break;
qeth_l3_ipaddr_to_string(proto, (const u8 *)&ipaddr->u,
addr_str);
str_len += snprintf(buf + str_len, PAGE_SIZE - str_len, "%s\n",
addr_str);
}
spin_unlock_bh(&card->ip_lock);
str_len += snprintf(buf + str_len, PAGE_SIZE - str_len, "\n");
return str_len;
}
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 const 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 str_len = 0;
int entry_len; /* length of 1 entry string, differs between v4 and v6 */
int i;
entry_len = (proto == QETH_PROT_IPV4)? 12 : 40;
entry_len += 2; /* \n + terminator */
spin_lock_bh(&card->ip_lock);
hash_for_each(card->ip_htable, i, ipaddr, hnode) {
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 - str_len) <= entry_len)
break;
qeth_l3_ipaddr_to_string(proto, (const u8 *)&ipaddr->u,
addr_str);
str_len += snprintf(buf + str_len, PAGE_SIZE - str_len, "%s\n",
addr_str);
}
spin_unlock_bh(&card->ip_lock);
str_len += snprintf(buf + str_len, PAGE_SIZE - str_len, "\n");
return str_len;
}
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)
{
__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_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 const 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);
}
const struct attribute_group *qeth_l3_attr_groups[] = {
&qeth_device_attr_group,
&qeth_device_blkt_group,
/* l3 specific, see l3_{create,remove}_device_attributes(): */
&qeth_l3_device_attr_group,
&qeth_device_ipato_group,
&qeth_device_vipa_group,
&qeth_device_rxip_group,
NULL,
};
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