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linux/drivers/net/ps3_gelic_wireless.c
Tejun Heo 5a0e3ad6af include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files.  percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.

percpu.h -> slab.h dependency is about to be removed.  Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability.  As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.

  http://userweb.kernel.org/~tj/misc/slabh-sweep.py

The script does the followings.

* Scan files for gfp and slab usages and update includes such that
  only the necessary includes are there.  ie. if only gfp is used,
  gfp.h, if slab is used, slab.h.

* When the script inserts a new include, it looks at the include
  blocks and try to put the new include such that its order conforms
  to its surrounding.  It's put in the include block which contains
  core kernel includes, in the same order that the rest are ordered -
  alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
  doesn't seem to be any matching order.

* If the script can't find a place to put a new include (mostly
  because the file doesn't have fitting include block), it prints out
  an error message indicating which .h file needs to be added to the
  file.

The conversion was done in the following steps.

1. The initial automatic conversion of all .c files updated slightly
   over 4000 files, deleting around 700 includes and adding ~480 gfp.h
   and ~3000 slab.h inclusions.  The script emitted errors for ~400
   files.

2. Each error was manually checked.  Some didn't need the inclusion,
   some needed manual addition while adding it to implementation .h or
   embedding .c file was more appropriate for others.  This step added
   inclusions to around 150 files.

3. The script was run again and the output was compared to the edits
   from #2 to make sure no file was left behind.

4. Several build tests were done and a couple of problems were fixed.
   e.g. lib/decompress_*.c used malloc/free() wrappers around slab
   APIs requiring slab.h to be added manually.

5. The script was run on all .h files but without automatically
   editing them as sprinkling gfp.h and slab.h inclusions around .h
   files could easily lead to inclusion dependency hell.  Most gfp.h
   inclusion directives were ignored as stuff from gfp.h was usually
   wildly available and often used in preprocessor macros.  Each
   slab.h inclusion directive was examined and added manually as
   necessary.

6. percpu.h was updated not to include slab.h.

7. Build test were done on the following configurations and failures
   were fixed.  CONFIG_GCOV_KERNEL was turned off for all tests (as my
   distributed build env didn't work with gcov compiles) and a few
   more options had to be turned off depending on archs to make things
   build (like ipr on powerpc/64 which failed due to missing writeq).

   * x86 and x86_64 UP and SMP allmodconfig and a custom test config.
   * powerpc and powerpc64 SMP allmodconfig
   * sparc and sparc64 SMP allmodconfig
   * ia64 SMP allmodconfig
   * s390 SMP allmodconfig
   * alpha SMP allmodconfig
   * um on x86_64 SMP allmodconfig

8. percpu.h modifications were reverted so that it could be applied as
   a separate patch and serve as bisection point.

Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.

Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-30 22:02:32 +09:00

2688 lines
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/*
* PS3 gelic network driver.
*
* Copyright (C) 2007 Sony Computer Entertainment Inc.
* Copyright 2007 Sony Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#undef DEBUG
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/if_vlan.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/tcp.h>
#include <linux/wireless.h>
#include <linux/ieee80211.h>
#include <linux/if_arp.h>
#include <linux/ctype.h>
#include <linux/string.h>
#include <net/iw_handler.h>
#include <linux/dma-mapping.h>
#include <net/checksum.h>
#include <asm/firmware.h>
#include <asm/ps3.h>
#include <asm/lv1call.h>
#include "ps3_gelic_net.h"
#include "ps3_gelic_wireless.h"
static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
u8 *essid, size_t essid_len);
static int gelic_wl_try_associate(struct net_device *netdev);
/*
* tables
*/
/* 802.11b/g channel to freq in MHz */
static const int channel_freq[] = {
2412, 2417, 2422, 2427, 2432,
2437, 2442, 2447, 2452, 2457,
2462, 2467, 2472, 2484
};
#define NUM_CHANNELS ARRAY_SIZE(channel_freq)
/* in bps */
static const int bitrate_list[] = {
1000000,
2000000,
5500000,
11000000,
6000000,
9000000,
12000000,
18000000,
24000000,
36000000,
48000000,
54000000
};
#define NUM_BITRATES ARRAY_SIZE(bitrate_list)
/*
* wpa2 support requires the hypervisor version 2.0 or later
*/
static inline int wpa2_capable(void)
{
return (0 <= ps3_compare_firmware_version(2, 0, 0));
}
static inline int precise_ie(void)
{
return (0 <= ps3_compare_firmware_version(2, 2, 0));
}
/*
* post_eurus_cmd helpers
*/
struct eurus_cmd_arg_info {
int pre_arg; /* command requres arg1, arg2 at POST COMMAND */
int post_arg; /* command requires arg1, arg2 at GET_RESULT */
};
static const struct eurus_cmd_arg_info cmd_info[GELIC_EURUS_CMD_MAX_INDEX] = {
[GELIC_EURUS_CMD_SET_COMMON_CFG] = { .pre_arg = 1},
[GELIC_EURUS_CMD_SET_WEP_CFG] = { .pre_arg = 1},
[GELIC_EURUS_CMD_SET_WPA_CFG] = { .pre_arg = 1},
[GELIC_EURUS_CMD_GET_COMMON_CFG] = { .post_arg = 1},
[GELIC_EURUS_CMD_GET_WEP_CFG] = { .post_arg = 1},
[GELIC_EURUS_CMD_GET_WPA_CFG] = { .post_arg = 1},
[GELIC_EURUS_CMD_GET_RSSI_CFG] = { .post_arg = 1},
[GELIC_EURUS_CMD_START_SCAN] = { .pre_arg = 1},
[GELIC_EURUS_CMD_GET_SCAN] = { .post_arg = 1},
};
#ifdef DEBUG
static const char *cmdstr(enum gelic_eurus_command ix)
{
switch (ix) {
case GELIC_EURUS_CMD_ASSOC:
return "ASSOC";
case GELIC_EURUS_CMD_DISASSOC:
return "DISASSOC";
case GELIC_EURUS_CMD_START_SCAN:
return "SCAN";
case GELIC_EURUS_CMD_GET_SCAN:
return "GET SCAN";
case GELIC_EURUS_CMD_SET_COMMON_CFG:
return "SET_COMMON_CFG";
case GELIC_EURUS_CMD_GET_COMMON_CFG:
return "GET_COMMON_CFG";
case GELIC_EURUS_CMD_SET_WEP_CFG:
return "SET_WEP_CFG";
case GELIC_EURUS_CMD_GET_WEP_CFG:
return "GET_WEP_CFG";
case GELIC_EURUS_CMD_SET_WPA_CFG:
return "SET_WPA_CFG";
case GELIC_EURUS_CMD_GET_WPA_CFG:
return "GET_WPA_CFG";
case GELIC_EURUS_CMD_GET_RSSI_CFG:
return "GET_RSSI";
default:
break;
}
return "";
};
#else
static inline const char *cmdstr(enum gelic_eurus_command ix)
{
return "";
}
#endif
/* synchronously do eurus commands */
static void gelic_eurus_sync_cmd_worker(struct work_struct *work)
{
struct gelic_eurus_cmd *cmd;
struct gelic_card *card;
struct gelic_wl_info *wl;
u64 arg1, arg2;
pr_debug("%s: <-\n", __func__);
cmd = container_of(work, struct gelic_eurus_cmd, work);
BUG_ON(cmd_info[cmd->cmd].pre_arg &&
cmd_info[cmd->cmd].post_arg);
wl = cmd->wl;
card = port_to_card(wl_port(wl));
if (cmd_info[cmd->cmd].pre_arg) {
arg1 = (cmd->buffer) ?
ps3_mm_phys_to_lpar(__pa(cmd->buffer)) :
0;
arg2 = cmd->buf_size;
} else {
arg1 = 0;
arg2 = 0;
}
init_completion(&wl->cmd_done_intr);
pr_debug("%s: cmd='%s' start\n", __func__, cmdstr(cmd->cmd));
cmd->status = lv1_net_control(bus_id(card), dev_id(card),
GELIC_LV1_POST_WLAN_CMD,
cmd->cmd, arg1, arg2,
&cmd->tag, &cmd->size);
if (cmd->status) {
complete(&cmd->done);
pr_info("%s: cmd issue failed\n", __func__);
return;
}
wait_for_completion(&wl->cmd_done_intr);
if (cmd_info[cmd->cmd].post_arg) {
arg1 = ps3_mm_phys_to_lpar(__pa(cmd->buffer));
arg2 = cmd->buf_size;
} else {
arg1 = 0;
arg2 = 0;
}
cmd->status = lv1_net_control(bus_id(card), dev_id(card),
GELIC_LV1_GET_WLAN_CMD_RESULT,
cmd->tag, arg1, arg2,
&cmd->cmd_status, &cmd->size);
#ifdef DEBUG
if (cmd->status || cmd->cmd_status) {
pr_debug("%s: cmd done tag=%#lx arg1=%#lx, arg2=%#lx\n", __func__,
cmd->tag, arg1, arg2);
pr_debug("%s: cmd done status=%#x cmd_status=%#lx size=%#lx\n",
__func__, cmd->status, cmd->cmd_status, cmd->size);
}
#endif
complete(&cmd->done);
pr_debug("%s: cmd='%s' done\n", __func__, cmdstr(cmd->cmd));
}
static struct gelic_eurus_cmd *gelic_eurus_sync_cmd(struct gelic_wl_info *wl,
unsigned int eurus_cmd,
void *buffer,
unsigned int buf_size)
{
struct gelic_eurus_cmd *cmd;
/* allocate cmd */
cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
if (!cmd)
return NULL;
/* initialize members */
cmd->cmd = eurus_cmd;
cmd->buffer = buffer;
cmd->buf_size = buf_size;
cmd->wl = wl;
INIT_WORK(&cmd->work, gelic_eurus_sync_cmd_worker);
init_completion(&cmd->done);
queue_work(wl->eurus_cmd_queue, &cmd->work);
/* wait for command completion */
wait_for_completion(&cmd->done);
return cmd;
}
static u32 gelic_wl_get_link(struct net_device *netdev)
{
struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
u32 ret;
pr_debug("%s: <-\n", __func__);
mutex_lock(&wl->assoc_stat_lock);
if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
ret = 1;
else
ret = 0;
mutex_unlock(&wl->assoc_stat_lock);
pr_debug("%s: ->\n", __func__);
return ret;
}
static void gelic_wl_send_iwap_event(struct gelic_wl_info *wl, u8 *bssid)
{
union iwreq_data data;
memset(&data, 0, sizeof(data));
if (bssid)
memcpy(data.ap_addr.sa_data, bssid, ETH_ALEN);
data.ap_addr.sa_family = ARPHRD_ETHER;
wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWAP,
&data, NULL);
}
/*
* wireless extension handlers and helpers
*/
/* SIOGIWNAME */
static int gelic_wl_get_name(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *iwreq, char *extra)
{
strcpy(iwreq->name, "IEEE 802.11bg");
return 0;
}
static void gelic_wl_get_ch_info(struct gelic_wl_info *wl)
{
struct gelic_card *card = port_to_card(wl_port(wl));
u64 ch_info_raw, tmp;
int status;
if (!test_and_set_bit(GELIC_WL_STAT_CH_INFO, &wl->stat)) {
status = lv1_net_control(bus_id(card), dev_id(card),
GELIC_LV1_GET_CHANNEL, 0, 0, 0,
&ch_info_raw,
&tmp);
/* some fw versions may return error */
if (status) {
if (status != LV1_NO_ENTRY)
pr_info("%s: available ch unknown\n", __func__);
wl->ch_info = 0x07ff;/* 11 ch */
} else
/* 16 bits of MSB has available channels */
wl->ch_info = ch_info_raw >> 48;
}
return;
}
/* SIOGIWRANGE */
static int gelic_wl_get_range(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *iwreq, char *extra)
{
struct iw_point *point = &iwreq->data;
struct iw_range *range = (struct iw_range *)extra;
struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
unsigned int i, chs;
pr_debug("%s: <-\n", __func__);
point->length = sizeof(struct iw_range);
memset(range, 0, sizeof(struct iw_range));
range->we_version_compiled = WIRELESS_EXT;
range->we_version_source = 22;
/* available channels and frequencies */
gelic_wl_get_ch_info(wl);
for (i = 0, chs = 0;
i < NUM_CHANNELS && chs < IW_MAX_FREQUENCIES; i++)
if (wl->ch_info & (1 << i)) {
range->freq[chs].i = i + 1;
range->freq[chs].m = channel_freq[i];
range->freq[chs].e = 6;
chs++;
}
range->num_frequency = chs;
range->old_num_frequency = chs;
range->num_channels = chs;
range->old_num_channels = chs;
/* bitrates */
for (i = 0; i < NUM_BITRATES; i++)
range->bitrate[i] = bitrate_list[i];
range->num_bitrates = i;
/* signal levels */
range->max_qual.qual = 100; /* relative value */
range->max_qual.level = 100;
range->avg_qual.qual = 50;
range->avg_qual.level = 50;
range->sensitivity = 0;
/* Event capability */
IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
/* encryption capability */
range->enc_capa = IW_ENC_CAPA_WPA |
IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP |
IW_ENC_CAPA_4WAY_HANDSHAKE;
if (wpa2_capable())
range->enc_capa |= IW_ENC_CAPA_WPA2;
range->encoding_size[0] = 5; /* 40bit WEP */
range->encoding_size[1] = 13; /* 104bit WEP */
range->encoding_size[2] = 32; /* WPA-PSK */
range->num_encoding_sizes = 3;
range->max_encoding_tokens = GELIC_WEP_KEYS;
/* scan capability */
range->scan_capa = IW_SCAN_CAPA_ESSID;
pr_debug("%s: ->\n", __func__);
return 0;
}
/* SIOC{G,S}IWSCAN */
static int gelic_wl_set_scan(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct iw_scan_req *req;
u8 *essid = NULL;
size_t essid_len = 0;
if (wrqu->data.length == sizeof(struct iw_scan_req) &&
wrqu->data.flags & IW_SCAN_THIS_ESSID) {
req = (struct iw_scan_req*)extra;
essid = req->essid;
essid_len = req->essid_len;
pr_debug("%s: ESSID scan =%s\n", __func__, essid);
}
return gelic_wl_start_scan(wl, 1, essid, essid_len);
}
#define OUI_LEN 3
static const u8 rsn_oui[OUI_LEN] = { 0x00, 0x0f, 0xac };
static const u8 wpa_oui[OUI_LEN] = { 0x00, 0x50, 0xf2 };
/*
* synthesize WPA/RSN IE data
* See WiFi WPA specification and IEEE 802.11-2007 7.3.2.25
* for the format
*/
static size_t gelic_wl_synthesize_ie(u8 *buf,
struct gelic_eurus_scan_info *scan)
{
const u8 *oui_header;
u8 *start = buf;
int rsn;
int ccmp;
pr_debug("%s: <- sec=%16x\n", __func__, scan->security);
switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_MASK) {
case GELIC_EURUS_SCAN_SEC_WPA:
rsn = 0;
break;
case GELIC_EURUS_SCAN_SEC_WPA2:
rsn = 1;
break;
default:
/* WEP or none. No IE returned */
return 0;
}
switch (be16_to_cpu(scan->security) & GELIC_EURUS_SCAN_SEC_WPA_MASK) {
case GELIC_EURUS_SCAN_SEC_WPA_TKIP:
ccmp = 0;
break;
case GELIC_EURUS_SCAN_SEC_WPA_AES:
ccmp = 1;
break;
default:
if (rsn) {
ccmp = 1;
pr_info("%s: no cipher info. defaulted to CCMP\n",
__func__);
} else {
ccmp = 0;
pr_info("%s: no cipher info. defaulted to TKIP\n",
__func__);
}
}
if (rsn)
oui_header = rsn_oui;
else
oui_header = wpa_oui;
/* element id */
if (rsn)
*buf++ = WLAN_EID_RSN;
else
*buf++ = WLAN_EID_GENERIC;
/* length filed; set later */
buf++;
/* wpa special header */
if (!rsn) {
memcpy(buf, wpa_oui, OUI_LEN);
buf += OUI_LEN;
*buf++ = 0x01;
}
/* version */
*buf++ = 0x01; /* version 1.0 */
*buf++ = 0x00;
/* group cipher */
memcpy(buf, oui_header, OUI_LEN);
buf += OUI_LEN;
if (ccmp)
*buf++ = 0x04; /* CCMP */
else
*buf++ = 0x02; /* TKIP */
/* pairwise key count always 1 */
*buf++ = 0x01;
*buf++ = 0x00;
/* pairwise key suit */
memcpy(buf, oui_header, OUI_LEN);
buf += OUI_LEN;
if (ccmp)
*buf++ = 0x04; /* CCMP */
else
*buf++ = 0x02; /* TKIP */
/* AKM count is 1 */
*buf++ = 0x01;
*buf++ = 0x00;
/* AKM suite is assumed as PSK*/
memcpy(buf, oui_header, OUI_LEN);
buf += OUI_LEN;
*buf++ = 0x02; /* PSK */
/* RSN capabilities is 0 */
*buf++ = 0x00;
*buf++ = 0x00;
/* set length field */
start[1] = (buf - start - 2);
pr_debug("%s: ->\n", __func__);
return (buf - start);
}
struct ie_item {
u8 *data;
u8 len;
};
struct ie_info {
struct ie_item wpa;
struct ie_item rsn;
};
static void gelic_wl_parse_ie(u8 *data, size_t len,
struct ie_info *ie_info)
{
size_t data_left = len;
u8 *pos = data;
u8 item_len;
u8 item_id;
pr_debug("%s: data=%p len=%ld \n", __func__,
data, len);
memset(ie_info, 0, sizeof(struct ie_info));
while (2 <= data_left) {
item_id = *pos++;
item_len = *pos++;
data_left -= 2;
if (data_left < item_len)
break;
switch (item_id) {
case WLAN_EID_GENERIC:
if ((OUI_LEN + 1 <= item_len) &&
!memcmp(pos, wpa_oui, OUI_LEN) &&
pos[OUI_LEN] == 0x01) {
ie_info->wpa.data = pos - 2;
ie_info->wpa.len = item_len + 2;
}
break;
case WLAN_EID_RSN:
ie_info->rsn.data = pos - 2;
/* length includes the header */
ie_info->rsn.len = item_len + 2;
break;
default:
pr_debug("%s: ignore %#x,%d\n", __func__,
item_id, item_len);
break;
}
pos += item_len;
data_left -= item_len;
}
pr_debug("%s: wpa=%p,%d wpa2=%p,%d\n", __func__,
ie_info->wpa.data, ie_info->wpa.len,
ie_info->rsn.data, ie_info->rsn.len);
}
/*
* translate the scan informations from hypervisor to a
* independent format
*/
static char *gelic_wl_translate_scan(struct net_device *netdev,
struct iw_request_info *info,
char *ev,
char *stop,
struct gelic_wl_scan_info *network)
{
struct iw_event iwe;
struct gelic_eurus_scan_info *scan = network->hwinfo;
char *tmp;
u8 rate;
unsigned int i, j, len;
u8 buf[64]; /* arbitrary size large enough */
pr_debug("%s: <-\n", __func__);
/* first entry should be AP's mac address */
iwe.cmd = SIOCGIWAP;
iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
memcpy(iwe.u.ap_addr.sa_data, &scan->bssid[2], ETH_ALEN);
ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_ADDR_LEN);
/* ESSID */
iwe.cmd = SIOCGIWESSID;
iwe.u.data.flags = 1;
iwe.u.data.length = strnlen(scan->essid, 32);
ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
/* FREQUENCY */
iwe.cmd = SIOCGIWFREQ;
iwe.u.freq.m = be16_to_cpu(scan->channel);
iwe.u.freq.e = 0; /* table value in MHz */
iwe.u.freq.i = 0;
ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_FREQ_LEN);
/* RATES */
iwe.cmd = SIOCGIWRATE;
iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
/* to stuff multiple values in one event */
tmp = ev + iwe_stream_lcp_len(info);
/* put them in ascendant order (older is first) */
i = 0;
j = 0;
pr_debug("%s: rates=%d rate=%d\n", __func__,
network->rate_len, network->rate_ext_len);
while (i < network->rate_len) {
if (j < network->rate_ext_len &&
((scan->ext_rate[j] & 0x7f) < (scan->rate[i] & 0x7f)))
rate = scan->ext_rate[j++] & 0x7f;
else
rate = scan->rate[i++] & 0x7f;
iwe.u.bitrate.value = rate * 500000; /* 500kbps unit */
tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
IW_EV_PARAM_LEN);
}
while (j < network->rate_ext_len) {
iwe.u.bitrate.value = (scan->ext_rate[j++] & 0x7f) * 500000;
tmp = iwe_stream_add_value(info, ev, tmp, stop, &iwe,
IW_EV_PARAM_LEN);
}
/* Check if we added any rate */
if (iwe_stream_lcp_len(info) < (tmp - ev))
ev = tmp;
/* ENCODE */
iwe.cmd = SIOCGIWENCODE;
if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_PRIVACY)
iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
else
iwe.u.data.flags = IW_ENCODE_DISABLED;
iwe.u.data.length = 0;
ev = iwe_stream_add_point(info, ev, stop, &iwe, scan->essid);
/* MODE */
iwe.cmd = SIOCGIWMODE;
if (be16_to_cpu(scan->capability) &
(WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
if (be16_to_cpu(scan->capability) & WLAN_CAPABILITY_ESS)
iwe.u.mode = IW_MODE_MASTER;
else
iwe.u.mode = IW_MODE_ADHOC;
ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_UINT_LEN);
}
/* QUAL */
iwe.cmd = IWEVQUAL;
iwe.u.qual.updated = IW_QUAL_ALL_UPDATED |
IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
iwe.u.qual.level = be16_to_cpu(scan->rssi);
iwe.u.qual.qual = be16_to_cpu(scan->rssi);
iwe.u.qual.noise = 0;
ev = iwe_stream_add_event(info, ev, stop, &iwe, IW_EV_QUAL_LEN);
/* RSN */
memset(&iwe, 0, sizeof(iwe));
if (be16_to_cpu(scan->size) <= sizeof(*scan)) {
/* If wpa[2] capable station, synthesize IE and put it */
len = gelic_wl_synthesize_ie(buf, scan);
if (len) {
iwe.cmd = IWEVGENIE;
iwe.u.data.length = len;
ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
}
} else {
/* this scan info has IE data */
struct ie_info ie_info;
size_t data_len;
data_len = be16_to_cpu(scan->size) - sizeof(*scan);
gelic_wl_parse_ie(scan->elements, data_len, &ie_info);
if (ie_info.wpa.len && (ie_info.wpa.len <= sizeof(buf))) {
memcpy(buf, ie_info.wpa.data, ie_info.wpa.len);
iwe.cmd = IWEVGENIE;
iwe.u.data.length = ie_info.wpa.len;
ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
}
if (ie_info.rsn.len && (ie_info.rsn.len <= sizeof(buf))) {
memset(&iwe, 0, sizeof(iwe));
memcpy(buf, ie_info.rsn.data, ie_info.rsn.len);
iwe.cmd = IWEVGENIE;
iwe.u.data.length = ie_info.rsn.len;
ev = iwe_stream_add_point(info, ev, stop, &iwe, buf);
}
}
pr_debug("%s: ->\n", __func__);
return ev;
}
static int gelic_wl_get_scan(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct gelic_wl_scan_info *scan_info;
char *ev = extra;
char *stop = ev + wrqu->data.length;
int ret = 0;
unsigned long this_time = jiffies;
pr_debug("%s: <-\n", __func__);
if (mutex_lock_interruptible(&wl->scan_lock))
return -EAGAIN;
switch (wl->scan_stat) {
case GELIC_WL_SCAN_STAT_SCANNING:
/* If a scan in progress, caller should call me again */
ret = -EAGAIN;
goto out;
break;
case GELIC_WL_SCAN_STAT_INIT:
/* last scan request failed or never issued */
ret = -ENODEV;
goto out;
break;
case GELIC_WL_SCAN_STAT_GOT_LIST:
/* ok, use current list */
break;
}
list_for_each_entry(scan_info, &wl->network_list, list) {
if (wl->scan_age == 0 ||
time_after(scan_info->last_scanned + wl->scan_age,
this_time))
ev = gelic_wl_translate_scan(netdev, info,
ev, stop,
scan_info);
else
pr_debug("%s:entry too old\n", __func__);
if (stop - ev <= IW_EV_ADDR_LEN) {
ret = -E2BIG;
goto out;
}
}
wrqu->data.length = ev - extra;
wrqu->data.flags = 0;
out:
mutex_unlock(&wl->scan_lock);
pr_debug("%s: -> %d %d\n", __func__, ret, wrqu->data.length);
return ret;
}
#ifdef DEBUG
static void scan_list_dump(struct gelic_wl_info *wl)
{
struct gelic_wl_scan_info *scan_info;
int i;
i = 0;
list_for_each_entry(scan_info, &wl->network_list, list) {
pr_debug("%s: item %d\n", __func__, i++);
pr_debug("valid=%d eurusindex=%d last=%lx\n",
scan_info->valid, scan_info->eurus_index,
scan_info->last_scanned);
pr_debug("r_len=%d r_ext_len=%d essid_len=%d\n",
scan_info->rate_len, scan_info->rate_ext_len,
scan_info->essid_len);
/* -- */
pr_debug("bssid=%pM\n", &scan_info->hwinfo->bssid[2]);
pr_debug("essid=%s\n", scan_info->hwinfo->essid);
}
}
#endif
static int gelic_wl_set_auth(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct iw_param *param = &data->param;
struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
unsigned long irqflag;
int ret = 0;
pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
spin_lock_irqsave(&wl->lock, irqflag);
switch (param->flags & IW_AUTH_INDEX) {
case IW_AUTH_WPA_VERSION:
if (param->value & IW_AUTH_WPA_VERSION_DISABLED) {
pr_debug("%s: NO WPA selected\n", __func__);
wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
}
if (param->value & IW_AUTH_WPA_VERSION_WPA) {
pr_debug("%s: WPA version 1 selected\n", __func__);
wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
wl->auth_method = GELIC_EURUS_AUTH_OPEN;
}
if (param->value & IW_AUTH_WPA_VERSION_WPA2) {
/*
* As the hypervisor may not tell the cipher
* information of the AP if it is WPA2,
* you will not decide suitable cipher from
* its beacon.
* You should have knowledge about the AP's
* cipher infomation in other method prior to
* the association.
*/
if (!precise_ie())
pr_info("%s: WPA2 may not work\n", __func__);
if (wpa2_capable()) {
wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA2;
wl->group_cipher_method = GELIC_WL_CIPHER_AES;
wl->pairwise_cipher_method =
GELIC_WL_CIPHER_AES;
wl->auth_method = GELIC_EURUS_AUTH_OPEN;
} else
ret = -EINVAL;
}
break;
case IW_AUTH_CIPHER_PAIRWISE:
if (param->value &
(IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
pr_debug("%s: WEP selected\n", __func__);
wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
}
if (param->value & IW_AUTH_CIPHER_TKIP) {
pr_debug("%s: TKIP selected\n", __func__);
wl->pairwise_cipher_method = GELIC_WL_CIPHER_TKIP;
}
if (param->value & IW_AUTH_CIPHER_CCMP) {
pr_debug("%s: CCMP selected\n", __func__);
wl->pairwise_cipher_method = GELIC_WL_CIPHER_AES;
}
if (param->value & IW_AUTH_CIPHER_NONE) {
pr_debug("%s: no auth selected\n", __func__);
wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
}
break;
case IW_AUTH_CIPHER_GROUP:
if (param->value &
(IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_WEP40)) {
pr_debug("%s: WEP selected\n", __func__);
wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
}
if (param->value & IW_AUTH_CIPHER_TKIP) {
pr_debug("%s: TKIP selected\n", __func__);
wl->group_cipher_method = GELIC_WL_CIPHER_TKIP;
}
if (param->value & IW_AUTH_CIPHER_CCMP) {
pr_debug("%s: CCMP selected\n", __func__);
wl->group_cipher_method = GELIC_WL_CIPHER_AES;
}
if (param->value & IW_AUTH_CIPHER_NONE) {
pr_debug("%s: no auth selected\n", __func__);
wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
}
break;
case IW_AUTH_80211_AUTH_ALG:
if (param->value & IW_AUTH_ALG_SHARED_KEY) {
pr_debug("%s: shared key specified\n", __func__);
wl->auth_method = GELIC_EURUS_AUTH_SHARED;
} else if (param->value & IW_AUTH_ALG_OPEN_SYSTEM) {
pr_debug("%s: open system specified\n", __func__);
wl->auth_method = GELIC_EURUS_AUTH_OPEN;
} else
ret = -EINVAL;
break;
case IW_AUTH_WPA_ENABLED:
if (param->value) {
pr_debug("%s: WPA enabled\n", __func__);
wl->wpa_level = GELIC_WL_WPA_LEVEL_WPA;
} else {
pr_debug("%s: WPA disabled\n", __func__);
wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
}
break;
case IW_AUTH_KEY_MGMT:
if (param->value & IW_AUTH_KEY_MGMT_PSK)
break;
/* intentionally fall through */
default:
ret = -EOPNOTSUPP;
break;
};
if (!ret)
set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: -> %d\n", __func__, ret);
return ret;
}
static int gelic_wl_get_auth(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *iwreq, char *extra)
{
struct iw_param *param = &iwreq->param;
struct gelic_wl_info *wl = port_wl(netdev_port(netdev));
unsigned long irqflag;
int ret = 0;
pr_debug("%s: <- %d\n", __func__, param->flags & IW_AUTH_INDEX);
spin_lock_irqsave(&wl->lock, irqflag);
switch (param->flags & IW_AUTH_INDEX) {
case IW_AUTH_WPA_VERSION:
switch (wl->wpa_level) {
case GELIC_WL_WPA_LEVEL_WPA:
param->value |= IW_AUTH_WPA_VERSION_WPA;
break;
case GELIC_WL_WPA_LEVEL_WPA2:
param->value |= IW_AUTH_WPA_VERSION_WPA2;
break;
default:
param->value |= IW_AUTH_WPA_VERSION_DISABLED;
}
break;
case IW_AUTH_80211_AUTH_ALG:
if (wl->auth_method == GELIC_EURUS_AUTH_SHARED)
param->value = IW_AUTH_ALG_SHARED_KEY;
else if (wl->auth_method == GELIC_EURUS_AUTH_OPEN)
param->value = IW_AUTH_ALG_OPEN_SYSTEM;
break;
case IW_AUTH_WPA_ENABLED:
switch (wl->wpa_level) {
case GELIC_WL_WPA_LEVEL_WPA:
case GELIC_WL_WPA_LEVEL_WPA2:
param->value = 1;
break;
default:
param->value = 0;
break;
}
break;
default:
ret = -EOPNOTSUPP;
}
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: -> %d\n", __func__, ret);
return ret;
}
/* SIOC{S,G}IWESSID */
static int gelic_wl_set_essid(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
unsigned long irqflag;
pr_debug("%s: <- l=%d f=%d\n", __func__,
data->essid.length, data->essid.flags);
if (IW_ESSID_MAX_SIZE < data->essid.length)
return -EINVAL;
spin_lock_irqsave(&wl->lock, irqflag);
if (data->essid.flags) {
wl->essid_len = data->essid.length;
memcpy(wl->essid, extra, wl->essid_len);
pr_debug("%s: essid = '%s'\n", __func__, extra);
set_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
} else {
pr_debug("%s: ESSID any \n", __func__);
clear_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat);
}
set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
spin_unlock_irqrestore(&wl->lock, irqflag);
gelic_wl_try_associate(netdev); /* FIXME */
pr_debug("%s: -> \n", __func__);
return 0;
}
static int gelic_wl_get_essid(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
unsigned long irqflag;
pr_debug("%s: <- \n", __func__);
mutex_lock(&wl->assoc_stat_lock);
spin_lock_irqsave(&wl->lock, irqflag);
if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat) ||
wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
memcpy(extra, wl->essid, wl->essid_len);
data->essid.length = wl->essid_len;
data->essid.flags = 1;
} else
data->essid.flags = 0;
mutex_unlock(&wl->assoc_stat_lock);
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: -> len=%d \n", __func__, data->essid.length);
return 0;
}
/* SIO{S,G}IWENCODE */
static int gelic_wl_set_encode(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct iw_point *enc = &data->encoding;
__u16 flags;
unsigned long irqflag;
int key_index, index_specified;
int ret = 0;
pr_debug("%s: <- \n", __func__);
flags = enc->flags & IW_ENCODE_FLAGS;
key_index = enc->flags & IW_ENCODE_INDEX;
pr_debug("%s: key_index = %d\n", __func__, key_index);
pr_debug("%s: key_len = %d\n", __func__, enc->length);
pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
if (GELIC_WEP_KEYS < key_index)
return -EINVAL;
spin_lock_irqsave(&wl->lock, irqflag);
if (key_index) {
index_specified = 1;
key_index--;
} else {
index_specified = 0;
key_index = wl->current_key;
}
if (flags & IW_ENCODE_NOKEY) {
/* if just IW_ENCODE_NOKEY, change current key index */
if (!flags && index_specified) {
wl->current_key = key_index;
goto done;
}
if (flags & IW_ENCODE_DISABLED) {
if (!index_specified) {
/* disable encryption */
wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
wl->pairwise_cipher_method =
GELIC_WL_CIPHER_NONE;
/* invalidate all key */
wl->key_enabled = 0;
} else
clear_bit(key_index, &wl->key_enabled);
}
if (flags & IW_ENCODE_OPEN)
wl->auth_method = GELIC_EURUS_AUTH_OPEN;
if (flags & IW_ENCODE_RESTRICTED) {
pr_info("%s: shared key mode enabled\n", __func__);
wl->auth_method = GELIC_EURUS_AUTH_SHARED;
}
} else {
if (IW_ENCODING_TOKEN_MAX < enc->length) {
ret = -EINVAL;
goto done;
}
wl->key_len[key_index] = enc->length;
memcpy(wl->key[key_index], extra, enc->length);
set_bit(key_index, &wl->key_enabled);
wl->pairwise_cipher_method = GELIC_WL_CIPHER_WEP;
wl->group_cipher_method = GELIC_WL_CIPHER_WEP;
}
set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
done:
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: -> \n", __func__);
return ret;
}
static int gelic_wl_get_encode(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct iw_point *enc = &data->encoding;
unsigned long irqflag;
unsigned int key_index, index_specified;
int ret = 0;
pr_debug("%s: <- \n", __func__);
key_index = enc->flags & IW_ENCODE_INDEX;
pr_debug("%s: flag=%#x point=%p len=%d extra=%p\n", __func__,
enc->flags, enc->pointer, enc->length, extra);
if (GELIC_WEP_KEYS < key_index)
return -EINVAL;
spin_lock_irqsave(&wl->lock, irqflag);
if (key_index) {
index_specified = 1;
key_index--;
} else {
index_specified = 0;
key_index = wl->current_key;
}
if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
switch (wl->auth_method) {
case GELIC_EURUS_AUTH_OPEN:
enc->flags = IW_ENCODE_OPEN;
break;
case GELIC_EURUS_AUTH_SHARED:
enc->flags = IW_ENCODE_RESTRICTED;
break;
}
} else
enc->flags = IW_ENCODE_DISABLED;
if (test_bit(key_index, &wl->key_enabled)) {
if (enc->length < wl->key_len[key_index]) {
ret = -EINVAL;
goto done;
}
enc->length = wl->key_len[key_index];
memcpy(extra, wl->key[key_index], wl->key_len[key_index]);
} else {
enc->length = 0;
enc->flags |= IW_ENCODE_NOKEY;
}
enc->flags |= key_index + 1;
pr_debug("%s: -> flag=%x len=%d\n", __func__,
enc->flags, enc->length);
done:
spin_unlock_irqrestore(&wl->lock, irqflag);
return ret;
}
/* SIOC{S,G}IWAP */
static int gelic_wl_set_ap(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
unsigned long irqflag;
pr_debug("%s: <-\n", __func__);
if (data->ap_addr.sa_family != ARPHRD_ETHER)
return -EINVAL;
spin_lock_irqsave(&wl->lock, irqflag);
if (is_valid_ether_addr(data->ap_addr.sa_data)) {
memcpy(wl->bssid, data->ap_addr.sa_data,
ETH_ALEN);
set_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
pr_debug("%s: bss=%pM\n", __func__, wl->bssid);
} else {
pr_debug("%s: clear bssid\n", __func__);
clear_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat);
memset(wl->bssid, 0, ETH_ALEN);
}
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: ->\n", __func__);
return 0;
}
static int gelic_wl_get_ap(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
unsigned long irqflag;
pr_debug("%s: <-\n", __func__);
mutex_lock(&wl->assoc_stat_lock);
spin_lock_irqsave(&wl->lock, irqflag);
if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED) {
data->ap_addr.sa_family = ARPHRD_ETHER;
memcpy(data->ap_addr.sa_data, wl->active_bssid,
ETH_ALEN);
} else
memset(data->ap_addr.sa_data, 0, ETH_ALEN);
spin_unlock_irqrestore(&wl->lock, irqflag);
mutex_unlock(&wl->assoc_stat_lock);
pr_debug("%s: ->\n", __func__);
return 0;
}
/* SIOC{S,G}IWENCODEEXT */
static int gelic_wl_set_encodeext(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct iw_point *enc = &data->encoding;
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
__u16 alg;
__u16 flags;
unsigned long irqflag;
int key_index;
int ret = 0;
pr_debug("%s: <- \n", __func__);
flags = enc->flags & IW_ENCODE_FLAGS;
alg = ext->alg;
key_index = enc->flags & IW_ENCODE_INDEX;
pr_debug("%s: key_index = %d\n", __func__, key_index);
pr_debug("%s: key_len = %d\n", __func__, enc->length);
pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
pr_debug("%s: ext_flag=%x\n", __func__, ext->ext_flags);
pr_debug("%s: ext_key_len=%x\n", __func__, ext->key_len);
if (GELIC_WEP_KEYS < key_index)
return -EINVAL;
spin_lock_irqsave(&wl->lock, irqflag);
if (key_index)
key_index--;
else
key_index = wl->current_key;
if (!enc->length && (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
/* reques to change default key index */
pr_debug("%s: request to change default key to %d\n",
__func__, key_index);
wl->current_key = key_index;
goto done;
}
if (alg == IW_ENCODE_ALG_NONE || (flags & IW_ENCODE_DISABLED)) {
pr_debug("%s: alg disabled\n", __func__);
wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
wl->auth_method = GELIC_EURUS_AUTH_OPEN; /* should be open */
} else if (alg == IW_ENCODE_ALG_WEP) {
pr_debug("%s: WEP requested\n", __func__);
if (flags & IW_ENCODE_OPEN) {
pr_debug("%s: open key mode\n", __func__);
wl->auth_method = GELIC_EURUS_AUTH_OPEN;
}
if (flags & IW_ENCODE_RESTRICTED) {
pr_debug("%s: shared key mode\n", __func__);
wl->auth_method = GELIC_EURUS_AUTH_SHARED;
}
if (IW_ENCODING_TOKEN_MAX < ext->key_len) {
pr_info("%s: key is too long %d\n", __func__,
ext->key_len);
ret = -EINVAL;
goto done;
}
/* OK, update the key */
wl->key_len[key_index] = ext->key_len;
memset(wl->key[key_index], 0, IW_ENCODING_TOKEN_MAX);
memcpy(wl->key[key_index], ext->key, ext->key_len);
set_bit(key_index, &wl->key_enabled);
/* remember wep info changed */
set_bit(GELIC_WL_STAT_CONFIGURED, &wl->stat);
} else if (alg == IW_ENCODE_ALG_PMK) {
if (ext->key_len != WPA_PSK_LEN) {
pr_err("%s: PSK length wrong %d\n", __func__,
ext->key_len);
ret = -EINVAL;
goto done;
}
memset(wl->psk, 0, sizeof(wl->psk));
memcpy(wl->psk, ext->key, ext->key_len);
wl->psk_len = ext->key_len;
wl->psk_type = GELIC_EURUS_WPA_PSK_BIN;
/* remember PSK configured */
set_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat);
}
done:
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: -> \n", __func__);
return ret;
}
static int gelic_wl_get_encodeext(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct iw_point *enc = &data->encoding;
struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
unsigned long irqflag;
int key_index;
int ret = 0;
int max_key_len;
pr_debug("%s: <- \n", __func__);
max_key_len = enc->length - sizeof(struct iw_encode_ext);
if (max_key_len < 0)
return -EINVAL;
key_index = enc->flags & IW_ENCODE_INDEX;
pr_debug("%s: key_index = %d\n", __func__, key_index);
pr_debug("%s: key_len = %d\n", __func__, enc->length);
pr_debug("%s: flag=%x\n", __func__, enc->flags & IW_ENCODE_FLAGS);
if (GELIC_WEP_KEYS < key_index)
return -EINVAL;
spin_lock_irqsave(&wl->lock, irqflag);
if (key_index)
key_index--;
else
key_index = wl->current_key;
memset(ext, 0, sizeof(struct iw_encode_ext));
switch (wl->group_cipher_method) {
case GELIC_WL_CIPHER_WEP:
ext->alg = IW_ENCODE_ALG_WEP;
enc->flags |= IW_ENCODE_ENABLED;
break;
case GELIC_WL_CIPHER_TKIP:
ext->alg = IW_ENCODE_ALG_TKIP;
enc->flags |= IW_ENCODE_ENABLED;
break;
case GELIC_WL_CIPHER_AES:
ext->alg = IW_ENCODE_ALG_CCMP;
enc->flags |= IW_ENCODE_ENABLED;
break;
case GELIC_WL_CIPHER_NONE:
default:
ext->alg = IW_ENCODE_ALG_NONE;
enc->flags |= IW_ENCODE_NOKEY;
break;
}
if (!(enc->flags & IW_ENCODE_NOKEY)) {
if (max_key_len < wl->key_len[key_index]) {
ret = -E2BIG;
goto out;
}
if (test_bit(key_index, &wl->key_enabled))
memcpy(ext->key, wl->key[key_index],
wl->key_len[key_index]);
else
pr_debug("%s: disabled key requested ix=%d\n",
__func__, key_index);
}
out:
spin_unlock_irqrestore(&wl->lock, irqflag);
pr_debug("%s: -> \n", __func__);
return ret;
}
/* SIOC{S,G}IWMODE */
static int gelic_wl_set_mode(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
__u32 mode = data->mode;
int ret;
pr_debug("%s: <- \n", __func__);
if (mode == IW_MODE_INFRA)
ret = 0;
else
ret = -EOPNOTSUPP;
pr_debug("%s: -> %d\n", __func__, ret);
return ret;
}
static int gelic_wl_get_mode(struct net_device *netdev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
__u32 *mode = &data->mode;
pr_debug("%s: <- \n", __func__);
*mode = IW_MODE_INFRA;
pr_debug("%s: ->\n", __func__);
return 0;
}
/* SIOCGIWNICKN */
static int gelic_wl_get_nick(struct net_device *net_dev,
struct iw_request_info *info,
union iwreq_data *data, char *extra)
{
strcpy(extra, "gelic_wl");
data->data.length = strlen(extra);
data->data.flags = 1;
return 0;
}
/* --- */
static struct iw_statistics *gelic_wl_get_wireless_stats(
struct net_device *netdev)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
struct gelic_eurus_cmd *cmd;
struct iw_statistics *is;
struct gelic_eurus_rssi_info *rssi;
void *buf;
pr_debug("%s: <-\n", __func__);
buf = (void *)__get_free_page(GFP_KERNEL);
if (!buf)
return NULL;
is = &wl->iwstat;
memset(is, 0, sizeof(*is));
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_RSSI_CFG,
buf, sizeof(*rssi));
if (cmd && !cmd->status && !cmd->cmd_status) {
rssi = buf;
is->qual.level = be16_to_cpu(rssi->rssi);
is->qual.updated = IW_QUAL_LEVEL_UPDATED |
IW_QUAL_QUAL_INVALID | IW_QUAL_NOISE_INVALID;
} else
/* not associated */
is->qual.updated = IW_QUAL_ALL_INVALID;
kfree(cmd);
free_page((unsigned long)buf);
pr_debug("%s: ->\n", __func__);
return is;
}
/*
* scanning helpers
*/
static int gelic_wl_start_scan(struct gelic_wl_info *wl, int always_scan,
u8 *essid, size_t essid_len)
{
struct gelic_eurus_cmd *cmd;
int ret = 0;
void *buf = NULL;
size_t len;
pr_debug("%s: <- always=%d\n", __func__, always_scan);
if (mutex_lock_interruptible(&wl->scan_lock))
return -ERESTARTSYS;
/*
* If already a scan in progress, do not trigger more
*/
if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING) {
pr_debug("%s: scanning now\n", __func__);
goto out;
}
init_completion(&wl->scan_done);
/*
* If we have already a bss list, don't try to get new
* unless we are doing an ESSID scan
*/
if ((!essid_len && !always_scan)
&& wl->scan_stat == GELIC_WL_SCAN_STAT_GOT_LIST) {
pr_debug("%s: already has the list\n", __func__);
complete(&wl->scan_done);
goto out;
}
/* ESSID scan ? */
if (essid_len && essid) {
buf = (void *)__get_free_page(GFP_KERNEL);
if (!buf) {
ret = -ENOMEM;
goto out;
}
len = IW_ESSID_MAX_SIZE; /* hypervisor always requires 32 */
memset(buf, 0, len);
memcpy(buf, essid, essid_len);
pr_debug("%s: essid scan='%s'\n", __func__, (char *)buf);
} else
len = 0;
/*
* issue start scan request
*/
wl->scan_stat = GELIC_WL_SCAN_STAT_SCANNING;
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_START_SCAN,
buf, len);
if (!cmd || cmd->status || cmd->cmd_status) {
wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
complete(&wl->scan_done);
ret = -ENOMEM;
goto out;
}
kfree(cmd);
out:
free_page((unsigned long)buf);
mutex_unlock(&wl->scan_lock);
pr_debug("%s: ->\n", __func__);
return ret;
}
/*
* retrieve scan result from the chip (hypervisor)
* this function is invoked by schedule work.
*/
static void gelic_wl_scan_complete_event(struct gelic_wl_info *wl)
{
struct gelic_eurus_cmd *cmd = NULL;
struct gelic_wl_scan_info *target, *tmp;
struct gelic_wl_scan_info *oldest = NULL;
struct gelic_eurus_scan_info *scan_info;
unsigned int scan_info_size;
union iwreq_data data;
unsigned long this_time = jiffies;
unsigned int data_len, i, found, r;
void *buf;
pr_debug("%s:start\n", __func__);
mutex_lock(&wl->scan_lock);
buf = (void *)__get_free_page(GFP_KERNEL);
if (!buf) {
pr_info("%s: scan buffer alloc failed\n", __func__);
goto out;
}
if (wl->scan_stat != GELIC_WL_SCAN_STAT_SCANNING) {
/*
* stop() may be called while scanning, ignore result
*/
pr_debug("%s: scan complete when stat != scanning(%d)\n",
__func__, wl->scan_stat);
goto out;
}
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_GET_SCAN,
buf, PAGE_SIZE);
if (!cmd || cmd->status || cmd->cmd_status) {
wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
pr_info("%s:cmd failed\n", __func__);
kfree(cmd);
goto out;
}
data_len = cmd->size;
pr_debug("%s: data_len = %d\n", __func__, data_len);
kfree(cmd);
/* OK, bss list retrieved */
wl->scan_stat = GELIC_WL_SCAN_STAT_GOT_LIST;
/* mark all entries are old */
list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
target->valid = 0;
/* expire too old entries */
if (time_before(target->last_scanned + wl->scan_age,
this_time)) {
kfree(target->hwinfo);
target->hwinfo = NULL;
list_move_tail(&target->list, &wl->network_free_list);
}
}
/* put them in the network_list */
for (i = 0, scan_info_size = 0, scan_info = buf;
scan_info_size < data_len;
i++, scan_info_size += be16_to_cpu(scan_info->size),
scan_info = (void *)scan_info + be16_to_cpu(scan_info->size)) {
pr_debug("%s:size=%d bssid=%pM scan_info=%p\n", __func__,
be16_to_cpu(scan_info->size),
&scan_info->bssid[2], scan_info);
/*
* The wireless firmware may return invalid channel 0 and/or
* invalid rate if the AP emits zero length SSID ie. As this
* scan information is useless, ignore it
*/
if (!be16_to_cpu(scan_info->channel) || !scan_info->rate[0]) {
pr_debug("%s: invalid scan info\n", __func__);
continue;
}
found = 0;
oldest = NULL;
list_for_each_entry(target, &wl->network_list, list) {
if (!compare_ether_addr(&target->hwinfo->bssid[2],
&scan_info->bssid[2])) {
found = 1;
pr_debug("%s: same BBS found scanned list\n",
__func__);
break;
}
if (!oldest ||
(target->last_scanned < oldest->last_scanned))
oldest = target;
}
if (!found) {
/* not found in the list */
if (list_empty(&wl->network_free_list)) {
/* expire oldest */
target = oldest;
} else {
target = list_entry(wl->network_free_list.next,
struct gelic_wl_scan_info,
list);
}
}
/* update the item */
target->last_scanned = this_time;
target->valid = 1;
target->eurus_index = i;
kfree(target->hwinfo);
target->hwinfo = kzalloc(be16_to_cpu(scan_info->size),
GFP_KERNEL);
if (!target->hwinfo) {
pr_info("%s: kzalloc failed\n", __func__);
continue;
}
/* copy hw scan info */
memcpy(target->hwinfo, scan_info, scan_info->size);
target->essid_len = strnlen(scan_info->essid,
sizeof(scan_info->essid));
target->rate_len = 0;
for (r = 0; r < 12; r++)
if (scan_info->rate[r])
target->rate_len++;
if (8 < target->rate_len)
pr_info("%s: AP returns %d rates\n", __func__,
target->rate_len);
target->rate_ext_len = 0;
for (r = 0; r < 16; r++)
if (scan_info->ext_rate[r])
target->rate_ext_len++;
list_move_tail(&target->list, &wl->network_list);
}
memset(&data, 0, sizeof(data));
wireless_send_event(port_to_netdev(wl_port(wl)), SIOCGIWSCAN, &data,
NULL);
out:
free_page((unsigned long)buf);
complete(&wl->scan_done);
mutex_unlock(&wl->scan_lock);
pr_debug("%s:end\n", __func__);
}
/*
* Select an appropriate bss from current scan list regarding
* current settings from userspace.
* The caller must hold wl->scan_lock,
* and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
*/
static void update_best(struct gelic_wl_scan_info **best,
struct gelic_wl_scan_info *candid,
int *best_weight,
int *weight)
{
if (*best_weight < ++(*weight)) {
*best_weight = *weight;
*best = candid;
}
}
static
struct gelic_wl_scan_info *gelic_wl_find_best_bss(struct gelic_wl_info *wl)
{
struct gelic_wl_scan_info *scan_info;
struct gelic_wl_scan_info *best_bss;
int weight, best_weight;
u16 security;
pr_debug("%s: <-\n", __func__);
best_bss = NULL;
best_weight = 0;
list_for_each_entry(scan_info, &wl->network_list, list) {
pr_debug("%s: station %p\n", __func__, scan_info);
if (!scan_info->valid) {
pr_debug("%s: station invalid\n", __func__);
continue;
}
/* If bss specified, check it only */
if (test_bit(GELIC_WL_STAT_BSSID_SET, &wl->stat)) {
if (!compare_ether_addr(&scan_info->hwinfo->bssid[2],
wl->bssid)) {
best_bss = scan_info;
pr_debug("%s: bssid matched\n", __func__);
break;
} else {
pr_debug("%s: bssid unmached\n", __func__);
continue;
}
}
weight = 0;
/* security */
security = be16_to_cpu(scan_info->hwinfo->security) &
GELIC_EURUS_SCAN_SEC_MASK;
if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
if (security == GELIC_EURUS_SCAN_SEC_WPA2)
update_best(&best_bss, scan_info,
&best_weight, &weight);
else
continue;
} else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA) {
if (security == GELIC_EURUS_SCAN_SEC_WPA)
update_best(&best_bss, scan_info,
&best_weight, &weight);
else
continue;
} else if (wl->wpa_level == GELIC_WL_WPA_LEVEL_NONE &&
wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
if (security == GELIC_EURUS_SCAN_SEC_WEP)
update_best(&best_bss, scan_info,
&best_weight, &weight);
else
continue;
}
/* If ESSID is set, check it */
if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
if ((scan_info->essid_len == wl->essid_len) &&
!strncmp(wl->essid,
scan_info->hwinfo->essid,
scan_info->essid_len))
update_best(&best_bss, scan_info,
&best_weight, &weight);
else
continue;
}
}
#ifdef DEBUG
pr_debug("%s: -> bss=%p\n", __func__, best_bss);
if (best_bss) {
pr_debug("%s:addr=%pM\n", __func__,
&best_bss->hwinfo->bssid[2]);
}
#endif
return best_bss;
}
/*
* Setup WEP configuration to the chip
* The caller must hold wl->scan_lock,
* and on the state of wl->scan_state == GELIC_WL_SCAN_GOT_LIST
*/
static int gelic_wl_do_wep_setup(struct gelic_wl_info *wl)
{
unsigned int i;
struct gelic_eurus_wep_cfg *wep;
struct gelic_eurus_cmd *cmd;
int wep104 = 0;
int have_key = 0;
int ret = 0;
pr_debug("%s: <-\n", __func__);
/* we can assume no one should uses the buffer */
wep = (struct gelic_eurus_wep_cfg *)__get_free_page(GFP_KERNEL);
if (!wep)
return -ENOMEM;
memset(wep, 0, sizeof(*wep));
if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
pr_debug("%s: WEP mode\n", __func__);
for (i = 0; i < GELIC_WEP_KEYS; i++) {
if (!test_bit(i, &wl->key_enabled))
continue;
pr_debug("%s: key#%d enabled\n", __func__, i);
have_key = 1;
if (wl->key_len[i] == 13)
wep104 = 1;
else if (wl->key_len[i] != 5) {
pr_info("%s: wrong wep key[%d]=%d\n",
__func__, i, wl->key_len[i]);
ret = -EINVAL;
goto out;
}
memcpy(wep->key[i], wl->key[i], wl->key_len[i]);
}
if (!have_key) {
pr_info("%s: all wep key disabled\n", __func__);
ret = -EINVAL;
goto out;
}
if (wep104) {
pr_debug("%s: 104bit key\n", __func__);
wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_104BIT);
} else {
pr_debug("%s: 40bit key\n", __func__);
wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_40BIT);
}
} else {
pr_debug("%s: NO encryption\n", __func__);
wep->security = cpu_to_be16(GELIC_EURUS_WEP_SEC_NONE);
}
/* issue wep setup */
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WEP_CFG,
wep, sizeof(*wep));
if (!cmd)
ret = -ENOMEM;
else if (cmd->status || cmd->cmd_status)
ret = -ENXIO;
kfree(cmd);
out:
free_page((unsigned long)wep);
pr_debug("%s: ->\n", __func__);
return ret;
}
#ifdef DEBUG
static const char *wpasecstr(enum gelic_eurus_wpa_security sec)
{
switch (sec) {
case GELIC_EURUS_WPA_SEC_NONE:
return "NONE";
break;
case GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP:
return "WPA_TKIP_TKIP";
break;
case GELIC_EURUS_WPA_SEC_WPA_TKIP_AES:
return "WPA_TKIP_AES";
break;
case GELIC_EURUS_WPA_SEC_WPA_AES_AES:
return "WPA_AES_AES";
break;
case GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP:
return "WPA2_TKIP_TKIP";
break;
case GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES:
return "WPA2_TKIP_AES";
break;
case GELIC_EURUS_WPA_SEC_WPA2_AES_AES:
return "WPA2_AES_AES";
break;
}
return "";
};
#endif
static int gelic_wl_do_wpa_setup(struct gelic_wl_info *wl)
{
struct gelic_eurus_wpa_cfg *wpa;
struct gelic_eurus_cmd *cmd;
u16 security;
int ret = 0;
pr_debug("%s: <-\n", __func__);
/* we can assume no one should uses the buffer */
wpa = (struct gelic_eurus_wpa_cfg *)__get_free_page(GFP_KERNEL);
if (!wpa)
return -ENOMEM;
memset(wpa, 0, sizeof(*wpa));
if (!test_bit(GELIC_WL_STAT_WPA_PSK_SET, &wl->stat))
pr_info("%s: PSK not configured yet\n", __func__);
/* copy key */
memcpy(wpa->psk, wl->psk, wl->psk_len);
/* set security level */
if (wl->wpa_level == GELIC_WL_WPA_LEVEL_WPA2) {
if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
security = GELIC_EURUS_WPA_SEC_WPA2_AES_AES;
} else {
if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
precise_ie())
security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_AES;
else
security = GELIC_EURUS_WPA_SEC_WPA2_TKIP_TKIP;
}
} else {
if (wl->group_cipher_method == GELIC_WL_CIPHER_AES) {
security = GELIC_EURUS_WPA_SEC_WPA_AES_AES;
} else {
if (wl->pairwise_cipher_method == GELIC_WL_CIPHER_AES &&
precise_ie())
security = GELIC_EURUS_WPA_SEC_WPA_TKIP_AES;
else
security = GELIC_EURUS_WPA_SEC_WPA_TKIP_TKIP;
}
}
wpa->security = cpu_to_be16(security);
/* PSK type */
wpa->psk_type = cpu_to_be16(wl->psk_type);
#ifdef DEBUG
pr_debug("%s: sec=%s psktype=%s\n", __func__,
wpasecstr(wpa->security),
(wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
"BIN" : "passphrase");
#if 0
/*
* don't enable here if you plan to submit
* the debug log because this dumps your precious
* passphrase/key.
*/
pr_debug("%s: psk=%s\n", __func__,
(wpa->psk_type == GELIC_EURUS_WPA_PSK_BIN) ?
"N/A" : wpa->psk);
#endif
#endif
/* issue wpa setup */
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_WPA_CFG,
wpa, sizeof(*wpa));
if (!cmd)
ret = -ENOMEM;
else if (cmd->status || cmd->cmd_status)
ret = -ENXIO;
kfree(cmd);
free_page((unsigned long)wpa);
pr_debug("%s: --> %d\n", __func__, ret);
return ret;
}
/*
* Start association. caller must hold assoc_stat_lock
*/
static int gelic_wl_associate_bss(struct gelic_wl_info *wl,
struct gelic_wl_scan_info *bss)
{
struct gelic_eurus_cmd *cmd;
struct gelic_eurus_common_cfg *common;
int ret = 0;
unsigned long rc;
pr_debug("%s: <-\n", __func__);
/* do common config */
common = (struct gelic_eurus_common_cfg *)__get_free_page(GFP_KERNEL);
if (!common)
return -ENOMEM;
memset(common, 0, sizeof(*common));
common->bss_type = cpu_to_be16(GELIC_EURUS_BSS_INFRA);
common->op_mode = cpu_to_be16(GELIC_EURUS_OPMODE_11BG);
common->scan_index = cpu_to_be16(bss->eurus_index);
switch (wl->auth_method) {
case GELIC_EURUS_AUTH_OPEN:
common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_OPEN);
break;
case GELIC_EURUS_AUTH_SHARED:
common->auth_method = cpu_to_be16(GELIC_EURUS_AUTH_SHARED);
break;
}
#ifdef DEBUG
scan_list_dump(wl);
#endif
pr_debug("%s: common cfg index=%d bsstype=%d auth=%d\n", __func__,
be16_to_cpu(common->scan_index),
be16_to_cpu(common->bss_type),
be16_to_cpu(common->auth_method));
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_SET_COMMON_CFG,
common, sizeof(*common));
if (!cmd || cmd->status || cmd->cmd_status) {
ret = -ENOMEM;
kfree(cmd);
goto out;
}
kfree(cmd);
/* WEP/WPA */
switch (wl->wpa_level) {
case GELIC_WL_WPA_LEVEL_NONE:
/* If WEP or no security, setup WEP config */
ret = gelic_wl_do_wep_setup(wl);
break;
case GELIC_WL_WPA_LEVEL_WPA:
case GELIC_WL_WPA_LEVEL_WPA2:
ret = gelic_wl_do_wpa_setup(wl);
break;
};
if (ret) {
pr_debug("%s: WEP/WPA setup failed %d\n", __func__,
ret);
ret = -EPERM;
gelic_wl_send_iwap_event(wl, NULL);
goto out;
}
/* start association */
init_completion(&wl->assoc_done);
wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATING;
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_ASSOC,
NULL, 0);
if (!cmd || cmd->status || cmd->cmd_status) {
pr_debug("%s: assoc request failed\n", __func__);
wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
kfree(cmd);
ret = -ENOMEM;
gelic_wl_send_iwap_event(wl, NULL);
goto out;
}
kfree(cmd);
/* wait for connected event */
rc = wait_for_completion_timeout(&wl->assoc_done, HZ * 4);/*FIXME*/
if (!rc) {
/* timeouted. Maybe key or cyrpt mode is wrong */
pr_info("%s: connect timeout \n", __func__);
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC,
NULL, 0);
kfree(cmd);
wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
gelic_wl_send_iwap_event(wl, NULL);
ret = -ENXIO;
} else {
wl->assoc_stat = GELIC_WL_ASSOC_STAT_ASSOCIATED;
/* copy bssid */
memcpy(wl->active_bssid, &bss->hwinfo->bssid[2], ETH_ALEN);
/* send connect event */
gelic_wl_send_iwap_event(wl, wl->active_bssid);
pr_info("%s: connected\n", __func__);
}
out:
free_page((unsigned long)common);
pr_debug("%s: ->\n", __func__);
return ret;
}
/*
* connected event
*/
static void gelic_wl_connected_event(struct gelic_wl_info *wl,
u64 event)
{
u64 desired_event = 0;
switch (wl->wpa_level) {
case GELIC_WL_WPA_LEVEL_NONE:
desired_event = GELIC_LV1_WL_EVENT_CONNECTED;
break;
case GELIC_WL_WPA_LEVEL_WPA:
case GELIC_WL_WPA_LEVEL_WPA2:
desired_event = GELIC_LV1_WL_EVENT_WPA_CONNECTED;
break;
}
if (desired_event == event) {
pr_debug("%s: completed \n", __func__);
complete(&wl->assoc_done);
netif_carrier_on(port_to_netdev(wl_port(wl)));
} else
pr_debug("%s: event %#llx under wpa\n",
__func__, event);
}
/*
* disconnect event
*/
static void gelic_wl_disconnect_event(struct gelic_wl_info *wl,
u64 event)
{
struct gelic_eurus_cmd *cmd;
int lock;
/*
* If we fall here in the middle of association,
* associate_bss() should be waiting for complation of
* wl->assoc_done.
* As it waits with timeout, just leave assoc_done
* uncompleted, then it terminates with timeout
*/
if (!mutex_trylock(&wl->assoc_stat_lock)) {
pr_debug("%s: already locked\n", __func__);
lock = 0;
} else {
pr_debug("%s: obtain lock\n", __func__);
lock = 1;
}
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
kfree(cmd);
/* send disconnected event to the supplicant */
if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
gelic_wl_send_iwap_event(wl, NULL);
wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
netif_carrier_off(port_to_netdev(wl_port(wl)));
if (lock)
mutex_unlock(&wl->assoc_stat_lock);
}
/*
* event worker
*/
#ifdef DEBUG
static const char *eventstr(enum gelic_lv1_wl_event event)
{
static char buf[32];
char *ret;
if (event & GELIC_LV1_WL_EVENT_DEVICE_READY)
ret = "EURUS_READY";
else if (event & GELIC_LV1_WL_EVENT_SCAN_COMPLETED)
ret = "SCAN_COMPLETED";
else if (event & GELIC_LV1_WL_EVENT_DEAUTH)
ret = "DEAUTH";
else if (event & GELIC_LV1_WL_EVENT_BEACON_LOST)
ret = "BEACON_LOST";
else if (event & GELIC_LV1_WL_EVENT_CONNECTED)
ret = "CONNECTED";
else if (event & GELIC_LV1_WL_EVENT_WPA_CONNECTED)
ret = "WPA_CONNECTED";
else if (event & GELIC_LV1_WL_EVENT_WPA_ERROR)
ret = "WPA_ERROR";
else {
sprintf(buf, "Unknown(%#x)", event);
ret = buf;
}
return ret;
}
#else
static const char *eventstr(enum gelic_lv1_wl_event event)
{
return NULL;
}
#endif
static void gelic_wl_event_worker(struct work_struct *work)
{
struct gelic_wl_info *wl;
struct gelic_port *port;
u64 event, tmp;
int status;
pr_debug("%s:start\n", __func__);
wl = container_of(work, struct gelic_wl_info, event_work.work);
port = wl_port(wl);
while (1) {
status = lv1_net_control(bus_id(port->card), dev_id(port->card),
GELIC_LV1_GET_WLAN_EVENT, 0, 0, 0,
&event, &tmp);
if (status) {
if (status != LV1_NO_ENTRY)
pr_debug("%s:wlan event failed %d\n",
__func__, status);
/* got all events */
pr_debug("%s:end\n", __func__);
return;
}
pr_debug("%s: event=%s\n", __func__, eventstr(event));
switch (event) {
case GELIC_LV1_WL_EVENT_SCAN_COMPLETED:
gelic_wl_scan_complete_event(wl);
break;
case GELIC_LV1_WL_EVENT_BEACON_LOST:
case GELIC_LV1_WL_EVENT_DEAUTH:
gelic_wl_disconnect_event(wl, event);
break;
case GELIC_LV1_WL_EVENT_CONNECTED:
case GELIC_LV1_WL_EVENT_WPA_CONNECTED:
gelic_wl_connected_event(wl, event);
break;
default:
break;
}
} /* while */
}
/*
* association worker
*/
static void gelic_wl_assoc_worker(struct work_struct *work)
{
struct gelic_wl_info *wl;
struct gelic_wl_scan_info *best_bss;
int ret;
unsigned long irqflag;
u8 *essid;
size_t essid_len;
wl = container_of(work, struct gelic_wl_info, assoc_work.work);
mutex_lock(&wl->assoc_stat_lock);
if (wl->assoc_stat != GELIC_WL_ASSOC_STAT_DISCONN)
goto out;
spin_lock_irqsave(&wl->lock, irqflag);
if (test_bit(GELIC_WL_STAT_ESSID_SET, &wl->stat)) {
pr_debug("%s: assoc ESSID configured %s\n", __func__,
wl->essid);
essid = wl->essid;
essid_len = wl->essid_len;
} else {
essid = NULL;
essid_len = 0;
}
spin_unlock_irqrestore(&wl->lock, irqflag);
ret = gelic_wl_start_scan(wl, 0, essid, essid_len);
if (ret == -ERESTARTSYS) {
pr_debug("%s: scan start failed association\n", __func__);
schedule_delayed_work(&wl->assoc_work, HZ/10); /*FIXME*/
goto out;
} else if (ret) {
pr_info("%s: scan prerequisite failed\n", __func__);
goto out;
}
/*
* Wait for bss scan completion
* If we have scan list already, gelic_wl_start_scan()
* returns OK and raises the complete. Thus,
* it's ok to wait unconditionally here
*/
wait_for_completion(&wl->scan_done);
pr_debug("%s: scan done\n", __func__);
mutex_lock(&wl->scan_lock);
if (wl->scan_stat != GELIC_WL_SCAN_STAT_GOT_LIST) {
gelic_wl_send_iwap_event(wl, NULL);
pr_info("%s: no scan list. association failed\n", __func__);
goto scan_lock_out;
}
/* find best matching bss */
best_bss = gelic_wl_find_best_bss(wl);
if (!best_bss) {
gelic_wl_send_iwap_event(wl, NULL);
pr_info("%s: no bss matched. association failed\n", __func__);
goto scan_lock_out;
}
/* ok, do association */
ret = gelic_wl_associate_bss(wl, best_bss);
if (ret)
pr_info("%s: association failed %d\n", __func__, ret);
scan_lock_out:
mutex_unlock(&wl->scan_lock);
out:
mutex_unlock(&wl->assoc_stat_lock);
}
/*
* Interrupt handler
* Called from the ethernet interrupt handler
* Processes wireless specific virtual interrupts only
*/
void gelic_wl_interrupt(struct net_device *netdev, u64 status)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
if (status & GELIC_CARD_WLAN_COMMAND_COMPLETED) {
pr_debug("%s:cmd complete\n", __func__);
complete(&wl->cmd_done_intr);
}
if (status & GELIC_CARD_WLAN_EVENT_RECEIVED) {
pr_debug("%s:event received\n", __func__);
queue_delayed_work(wl->event_queue, &wl->event_work, 0);
}
}
/*
* driver helpers
*/
#define IW_IOCTL(n) [(n) - SIOCSIWCOMMIT]
static const iw_handler gelic_wl_wext_handler[] =
{
IW_IOCTL(SIOCGIWNAME) = gelic_wl_get_name,
IW_IOCTL(SIOCGIWRANGE) = gelic_wl_get_range,
IW_IOCTL(SIOCSIWSCAN) = gelic_wl_set_scan,
IW_IOCTL(SIOCGIWSCAN) = gelic_wl_get_scan,
IW_IOCTL(SIOCSIWAUTH) = gelic_wl_set_auth,
IW_IOCTL(SIOCGIWAUTH) = gelic_wl_get_auth,
IW_IOCTL(SIOCSIWESSID) = gelic_wl_set_essid,
IW_IOCTL(SIOCGIWESSID) = gelic_wl_get_essid,
IW_IOCTL(SIOCSIWENCODE) = gelic_wl_set_encode,
IW_IOCTL(SIOCGIWENCODE) = gelic_wl_get_encode,
IW_IOCTL(SIOCSIWAP) = gelic_wl_set_ap,
IW_IOCTL(SIOCGIWAP) = gelic_wl_get_ap,
IW_IOCTL(SIOCSIWENCODEEXT) = gelic_wl_set_encodeext,
IW_IOCTL(SIOCGIWENCODEEXT) = gelic_wl_get_encodeext,
IW_IOCTL(SIOCSIWMODE) = gelic_wl_set_mode,
IW_IOCTL(SIOCGIWMODE) = gelic_wl_get_mode,
IW_IOCTL(SIOCGIWNICKN) = gelic_wl_get_nick,
};
static const struct iw_handler_def gelic_wl_wext_handler_def = {
.num_standard = ARRAY_SIZE(gelic_wl_wext_handler),
.standard = gelic_wl_wext_handler,
.get_wireless_stats = gelic_wl_get_wireless_stats,
};
static struct net_device * __devinit gelic_wl_alloc(struct gelic_card *card)
{
struct net_device *netdev;
struct gelic_port *port;
struct gelic_wl_info *wl;
unsigned int i;
pr_debug("%s:start\n", __func__);
netdev = alloc_etherdev(sizeof(struct gelic_port) +
sizeof(struct gelic_wl_info));
pr_debug("%s: netdev =%p card=%p \np", __func__, netdev, card);
if (!netdev)
return NULL;
strcpy(netdev->name, "wlan%d");
port = netdev_priv(netdev);
port->netdev = netdev;
port->card = card;
port->type = GELIC_PORT_WIRELESS;
wl = port_wl(port);
pr_debug("%s: wl=%p port=%p\n", __func__, wl, port);
/* allocate scan list */
wl->networks = kzalloc(sizeof(struct gelic_wl_scan_info) *
GELIC_WL_BSS_MAX_ENT, GFP_KERNEL);
if (!wl->networks)
goto fail_bss;
wl->eurus_cmd_queue = create_singlethread_workqueue("gelic_cmd");
if (!wl->eurus_cmd_queue)
goto fail_cmd_workqueue;
wl->event_queue = create_singlethread_workqueue("gelic_event");
if (!wl->event_queue)
goto fail_event_workqueue;
INIT_LIST_HEAD(&wl->network_free_list);
INIT_LIST_HEAD(&wl->network_list);
for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++)
list_add_tail(&wl->networks[i].list,
&wl->network_free_list);
init_completion(&wl->cmd_done_intr);
INIT_DELAYED_WORK(&wl->event_work, gelic_wl_event_worker);
INIT_DELAYED_WORK(&wl->assoc_work, gelic_wl_assoc_worker);
mutex_init(&wl->scan_lock);
mutex_init(&wl->assoc_stat_lock);
init_completion(&wl->scan_done);
/* for the case that no scan request is issued and stop() is called */
complete(&wl->scan_done);
spin_lock_init(&wl->lock);
wl->scan_age = 5*HZ; /* FIXME */
/* buffer for receiving scanned list etc */
BUILD_BUG_ON(PAGE_SIZE <
sizeof(struct gelic_eurus_scan_info) *
GELIC_EURUS_MAX_SCAN);
pr_debug("%s:end\n", __func__);
return netdev;
fail_event_workqueue:
destroy_workqueue(wl->eurus_cmd_queue);
fail_cmd_workqueue:
kfree(wl->networks);
fail_bss:
free_netdev(netdev);
pr_debug("%s:end error\n", __func__);
return NULL;
}
static void gelic_wl_free(struct gelic_wl_info *wl)
{
struct gelic_wl_scan_info *scan_info;
unsigned int i;
pr_debug("%s: <-\n", __func__);
pr_debug("%s: destroy queues\n", __func__);
destroy_workqueue(wl->eurus_cmd_queue);
destroy_workqueue(wl->event_queue);
scan_info = wl->networks;
for (i = 0; i < GELIC_WL_BSS_MAX_ENT; i++, scan_info++)
kfree(scan_info->hwinfo);
kfree(wl->networks);
free_netdev(port_to_netdev(wl_port(wl)));
pr_debug("%s: ->\n", __func__);
}
static int gelic_wl_try_associate(struct net_device *netdev)
{
struct gelic_wl_info *wl = port_wl(netdev_priv(netdev));
int ret = -1;
unsigned int i;
pr_debug("%s: <-\n", __func__);
/* check constraits for start association */
/* for no access restriction AP */
if (wl->group_cipher_method == GELIC_WL_CIPHER_NONE) {
if (test_bit(GELIC_WL_STAT_CONFIGURED,
&wl->stat))
goto do_associate;
else {
pr_debug("%s: no wep, not configured\n", __func__);
return ret;
}
}
/* for WEP, one of four keys should be set */
if (wl->group_cipher_method == GELIC_WL_CIPHER_WEP) {
/* one of keys set */
for (i = 0; i < GELIC_WEP_KEYS; i++) {
if (test_bit(i, &wl->key_enabled))
goto do_associate;
}
pr_debug("%s: WEP, but no key specified\n", __func__);
return ret;
}
/* for WPA[2], psk should be set */
if ((wl->group_cipher_method == GELIC_WL_CIPHER_TKIP) ||
(wl->group_cipher_method == GELIC_WL_CIPHER_AES)) {
if (test_bit(GELIC_WL_STAT_WPA_PSK_SET,
&wl->stat))
goto do_associate;
else {
pr_debug("%s: AES/TKIP, but PSK not configured\n",
__func__);
return ret;
}
}
do_associate:
ret = schedule_delayed_work(&wl->assoc_work, 0);
pr_debug("%s: start association work %d\n", __func__, ret);
return ret;
}
/*
* netdev handlers
*/
static int gelic_wl_open(struct net_device *netdev)
{
struct gelic_card *card = netdev_card(netdev);
pr_debug("%s:->%p\n", __func__, netdev);
gelic_card_up(card);
/* try to associate */
gelic_wl_try_associate(netdev);
netif_start_queue(netdev);
pr_debug("%s:<-\n", __func__);
return 0;
}
/*
* reset state machine
*/
static int gelic_wl_reset_state(struct gelic_wl_info *wl)
{
struct gelic_wl_scan_info *target;
struct gelic_wl_scan_info *tmp;
/* empty scan list */
list_for_each_entry_safe(target, tmp, &wl->network_list, list) {
list_move_tail(&target->list, &wl->network_free_list);
}
wl->scan_stat = GELIC_WL_SCAN_STAT_INIT;
/* clear configuration */
wl->auth_method = GELIC_EURUS_AUTH_OPEN;
wl->group_cipher_method = GELIC_WL_CIPHER_NONE;
wl->pairwise_cipher_method = GELIC_WL_CIPHER_NONE;
wl->wpa_level = GELIC_WL_WPA_LEVEL_NONE;
wl->key_enabled = 0;
wl->current_key = 0;
wl->psk_type = GELIC_EURUS_WPA_PSK_PASSPHRASE;
wl->psk_len = 0;
wl->essid_len = 0;
memset(wl->essid, 0, sizeof(wl->essid));
memset(wl->bssid, 0, sizeof(wl->bssid));
memset(wl->active_bssid, 0, sizeof(wl->active_bssid));
wl->assoc_stat = GELIC_WL_ASSOC_STAT_DISCONN;
memset(&wl->iwstat, 0, sizeof(wl->iwstat));
/* all status bit clear */
wl->stat = 0;
return 0;
}
/*
* Tell eurus to terminate association
*/
static void gelic_wl_disconnect(struct net_device *netdev)
{
struct gelic_port *port = netdev_priv(netdev);
struct gelic_wl_info *wl = port_wl(port);
struct gelic_eurus_cmd *cmd;
/*
* If scann process is running on chip,
* further requests will be rejected
*/
if (wl->scan_stat == GELIC_WL_SCAN_STAT_SCANNING)
wait_for_completion_timeout(&wl->scan_done, HZ);
cmd = gelic_eurus_sync_cmd(wl, GELIC_EURUS_CMD_DISASSOC, NULL, 0);
kfree(cmd);
gelic_wl_send_iwap_event(wl, NULL);
};
static int gelic_wl_stop(struct net_device *netdev)
{
struct gelic_port *port = netdev_priv(netdev);
struct gelic_wl_info *wl = port_wl(port);
struct gelic_card *card = netdev_card(netdev);
pr_debug("%s:<-\n", __func__);
/*
* Cancel pending association work.
* event work can run after netdev down
*/
cancel_delayed_work(&wl->assoc_work);
if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
gelic_wl_disconnect(netdev);
/* reset our state machine */
gelic_wl_reset_state(wl);
netif_stop_queue(netdev);
gelic_card_down(card);
pr_debug("%s:->\n", __func__);
return 0;
}
/* -- */
static const struct net_device_ops gelic_wl_netdevice_ops = {
.ndo_open = gelic_wl_open,
.ndo_stop = gelic_wl_stop,
.ndo_start_xmit = gelic_net_xmit,
.ndo_set_multicast_list = gelic_net_set_multi,
.ndo_change_mtu = gelic_net_change_mtu,
.ndo_tx_timeout = gelic_net_tx_timeout,
.ndo_set_mac_address = eth_mac_addr,
.ndo_validate_addr = eth_validate_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = gelic_net_poll_controller,
#endif
};
static const struct ethtool_ops gelic_wl_ethtool_ops = {
.get_drvinfo = gelic_net_get_drvinfo,
.get_link = gelic_wl_get_link,
.get_tx_csum = ethtool_op_get_tx_csum,
.set_tx_csum = ethtool_op_set_tx_csum,
.get_rx_csum = gelic_net_get_rx_csum,
.set_rx_csum = gelic_net_set_rx_csum,
};
static void __devinit gelic_wl_setup_netdev_ops(struct net_device *netdev)
{
struct gelic_wl_info *wl;
wl = port_wl(netdev_priv(netdev));
BUG_ON(!wl);
netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT;
netdev->ethtool_ops = &gelic_wl_ethtool_ops;
netdev->netdev_ops = &gelic_wl_netdevice_ops;
netdev->wireless_data = &wl->wireless_data;
netdev->wireless_handlers = &gelic_wl_wext_handler_def;
}
/*
* driver probe/remove
*/
int __devinit gelic_wl_driver_probe(struct gelic_card *card)
{
int ret;
struct net_device *netdev;
pr_debug("%s:start\n", __func__);
if (ps3_compare_firmware_version(1, 6, 0) < 0)
return 0;
if (!card->vlan[GELIC_PORT_WIRELESS].tx)
return 0;
/* alloc netdevice for wireless */
netdev = gelic_wl_alloc(card);
if (!netdev)
return -ENOMEM;
/* setup net_device structure */
SET_NETDEV_DEV(netdev, &card->dev->core);
gelic_wl_setup_netdev_ops(netdev);
/* setup some of net_device and register it */
ret = gelic_net_setup_netdev(netdev, card);
if (ret)
goto fail_setup;
card->netdev[GELIC_PORT_WIRELESS] = netdev;
/* add enable wireless interrupt */
card->irq_mask |= GELIC_CARD_WLAN_EVENT_RECEIVED |
GELIC_CARD_WLAN_COMMAND_COMPLETED;
/* to allow wireless commands while both interfaces are down */
gelic_card_set_irq_mask(card, GELIC_CARD_WLAN_EVENT_RECEIVED |
GELIC_CARD_WLAN_COMMAND_COMPLETED);
pr_debug("%s:end\n", __func__);
return 0;
fail_setup:
gelic_wl_free(port_wl(netdev_port(netdev)));
return ret;
}
int gelic_wl_driver_remove(struct gelic_card *card)
{
struct gelic_wl_info *wl;
struct net_device *netdev;
pr_debug("%s:start\n", __func__);
if (ps3_compare_firmware_version(1, 6, 0) < 0)
return 0;
if (!card->vlan[GELIC_PORT_WIRELESS].tx)
return 0;
netdev = card->netdev[GELIC_PORT_WIRELESS];
wl = port_wl(netdev_priv(netdev));
/* if the interface was not up, but associated */
if (wl->assoc_stat == GELIC_WL_ASSOC_STAT_ASSOCIATED)
gelic_wl_disconnect(netdev);
complete(&wl->cmd_done_intr);
/* cancel all work queue */
cancel_delayed_work(&wl->assoc_work);
cancel_delayed_work(&wl->event_work);
flush_workqueue(wl->eurus_cmd_queue);
flush_workqueue(wl->event_queue);
unregister_netdev(netdev);
/* disable wireless interrupt */
pr_debug("%s: disable intr\n", __func__);
card->irq_mask &= ~(GELIC_CARD_WLAN_EVENT_RECEIVED |
GELIC_CARD_WLAN_COMMAND_COMPLETED);
/* free bss list, netdev*/
gelic_wl_free(wl);
pr_debug("%s:end\n", __func__);
return 0;
}
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