Add HostAP wireless driver.

Includes minor cleanups from Adrian Bunk <bunk@stusta.de>.

1 files changed, 466 insertions, 0 deletions

diff --git a/drivers/net/wireless/hostap/hostap_proc.c b/drivers/net/wireless/hostap/hostap_proc.c
new file mode 100644
index 000000000000..81b321ba189a
--- /dev/null
+++ b/drivers/net/wireless/hostap/hostap_proc.c
@@ -0,0 +1,466 @@
+/* /proc routines for Host AP driver */
+
+#define PROC_LIMIT (PAGE_SIZE - 80)
+
+
+#ifndef PRISM2_NO_PROCFS_DEBUG
+static int prism2_debug_proc_read(char *page, char **start, off_t off,
+				  int count, int *eof, void *data)
+{
+	char *p = page;
+	local_info_t *local = (local_info_t *) data;
+	int i;
+
+	if (off != 0) {
+		*eof = 1;
+		return 0;
+	}
+
+	p += sprintf(p, "next_txfid=%d next_alloc=%d\n",
+		     local->next_txfid, local->next_alloc);
+	for (i = 0; i < PRISM2_TXFID_COUNT; i++)
+		p += sprintf(p, "FID: tx=%04X intransmit=%04X\n",
+			     local->txfid[i], local->intransmitfid[i]);
+	p += sprintf(p, "FW TX rate control: %d\n", local->fw_tx_rate_control);
+	p += sprintf(p, "beacon_int=%d\n", local->beacon_int);
+	p += sprintf(p, "dtim_period=%d\n", local->dtim_period);
+	p += sprintf(p, "wds_max_connections=%d\n",
+		     local->wds_max_connections);
+	p += sprintf(p, "dev_enabled=%d\n", local->dev_enabled);
+	p += sprintf(p, "sw_tick_stuck=%d\n", local->sw_tick_stuck);
+	for (i = 0; i < WEP_KEYS; i++) {
+		if (local->crypt[i] && local->crypt[i]->ops) {
+			p += sprintf(p, "crypt[%d]=%s\n",
+				     i, local->crypt[i]->ops->name);
+		}
+	}
+	p += sprintf(p, "pri_only=%d\n", local->pri_only);
+	p += sprintf(p, "pci=%d\n", local->func->hw_type == HOSTAP_HW_PCI);
+	p += sprintf(p, "sram_type=%d\n", local->sram_type);
+	p += sprintf(p, "no_pri=%d\n", local->no_pri);
+
+	return (p - page);
+}
+#endif /* PRISM2_NO_PROCFS_DEBUG */
+
+
+static int prism2_stats_proc_read(char *page, char **start, off_t off,
+				  int count, int *eof, void *data)
+{
+	char *p = page;
+	local_info_t *local = (local_info_t *) data;
+	struct comm_tallies_sums *sums = (struct comm_tallies_sums *)
+		&local->comm_tallies;
+
+	if (off != 0) {
+		*eof = 1;
+		return 0;
+	}
+
+	p += sprintf(p, "TxUnicastFrames=%u\n", sums->tx_unicast_frames);
+	p += sprintf(p, "TxMulticastframes=%u\n", sums->tx_multicast_frames);
+	p += sprintf(p, "TxFragments=%u\n", sums->tx_fragments);
+	p += sprintf(p, "TxUnicastOctets=%u\n", sums->tx_unicast_octets);
+	p += sprintf(p, "TxMulticastOctets=%u\n", sums->tx_multicast_octets);
+	p += sprintf(p, "TxDeferredTransmissions=%u\n",
+		     sums->tx_deferred_transmissions);
+	p += sprintf(p, "TxSingleRetryFrames=%u\n",
+		     sums->tx_single_retry_frames);
+	p += sprintf(p, "TxMultipleRetryFrames=%u\n",
+		     sums->tx_multiple_retry_frames);
+	p += sprintf(p, "TxRetryLimitExceeded=%u\n",
+		     sums->tx_retry_limit_exceeded);
+	p += sprintf(p, "TxDiscards=%u\n", sums->tx_discards);
+	p += sprintf(p, "RxUnicastFrames=%u\n", sums->rx_unicast_frames);
+	p += sprintf(p, "RxMulticastFrames=%u\n", sums->rx_multicast_frames);
+	p += sprintf(p, "RxFragments=%u\n", sums->rx_fragments);
+	p += sprintf(p, "RxUnicastOctets=%u\n", sums->rx_unicast_octets);
+	p += sprintf(p, "RxMulticastOctets=%u\n", sums->rx_multicast_octets);
+	p += sprintf(p, "RxFCSErrors=%u\n", sums->rx_fcs_errors);
+	p += sprintf(p, "RxDiscardsNoBuffer=%u\n",
+		     sums->rx_discards_no_buffer);
+	p += sprintf(p, "TxDiscardsWrongSA=%u\n", sums->tx_discards_wrong_sa);
+	p += sprintf(p, "RxDiscardsWEPUndecryptable=%u\n",
+		     sums->rx_discards_wep_undecryptable);
+	p += sprintf(p, "RxMessageInMsgFragments=%u\n",
+		     sums->rx_message_in_msg_fragments);
+	p += sprintf(p, "RxMessageInBadMsgFragments=%u\n",
+		     sums->rx_message_in_bad_msg_fragments);
+	/* FIX: this may grow too long for one page(?) */
+
+	return (p - page);
+}
+
+
+static int prism2_wds_proc_read(char *page, char **start, off_t off,
+				int count, int *eof, void *data)
+{
+	char *p = page;
+	local_info_t *local = (local_info_t *) data;
+	struct list_head *ptr;
+	struct hostap_interface *iface;
+
+	if (off > PROC_LIMIT) {
+		*eof = 1;
+		return 0;
+	}
+
+	read_lock_bh(&local->iface_lock);
+	list_for_each(ptr, &local->hostap_interfaces) {
+		iface = list_entry(ptr, struct hostap_interface, list);
+		if (iface->type != HOSTAP_INTERFACE_WDS)
+			continue;
+		p += sprintf(p, "%s\t" MACSTR "\n",
+			     iface->dev->name,
+			     MAC2STR(iface->u.wds.remote_addr));
+		if ((p - page) > PROC_LIMIT) {
+			printk(KERN_DEBUG "%s: wds proc did not fit\n",
+			       local->dev->name);
+			break;
+		}
+	}
+	read_unlock_bh(&local->iface_lock);
+
+	if ((p - page) <= off) {
+		*eof = 1;
+		return 0;
+	}
+
+	*start = page + off;
+
+	return (p - page - off);
+}
+
+
+static int prism2_bss_list_proc_read(char *page, char **start, off_t off,
+				     int count, int *eof, void *data)
+{
+	char *p = page;
+	local_info_t *local = (local_info_t *) data;
+	struct list_head *ptr;
+	struct hostap_bss_info *bss;
+	int i;
+
+	if (off > PROC_LIMIT) {
+		*eof = 1;
+		return 0;
+	}
+
+	p += sprintf(p, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t"
+		     "SSID(hex)\tWPA IE\n");
+	spin_lock_bh(&local->lock);
+	list_for_each(ptr, &local->bss_list) {
+		bss = list_entry(ptr, struct hostap_bss_info, list);
+		p += sprintf(p, MACSTR "\t%lu\t%u\t0x%x\t",
+			     MAC2STR(bss->bssid), bss->last_update,
+			     bss->count, bss->capab_info);
+		for (i = 0; i < bss->ssid_len; i++) {
+			p += sprintf(p, "%c",
+				     bss->ssid[i] >= 32 && bss->ssid[i] < 127 ?
+				     bss->ssid[i] : '_');
+		}
+		p += sprintf(p, "\t");
+		for (i = 0; i < bss->ssid_len; i++) {
+			p += sprintf(p, "%02x", bss->ssid[i]);
+		}
+		p += sprintf(p, "\t");
+		for (i = 0; i < bss->wpa_ie_len; i++) {
+			p += sprintf(p, "%02x", bss->wpa_ie[i]);
+		}
+		p += sprintf(p, "\n");
+		if ((p - page) > PROC_LIMIT) {
+			printk(KERN_DEBUG "%s: BSS proc did not fit\n",
+			       local->dev->name);
+			break;
+		}
+	}
+	spin_unlock_bh(&local->lock);
+
+	if ((p - page) <= off) {
+		*eof = 1;
+		return 0;
+	}
+
+	*start = page + off;
+
+	return (p - page - off);
+}
+
+
+static int prism2_crypt_proc_read(char *page, char **start, off_t off,
+				  int count, int *eof, void *data)
+{
+	char *p = page;
+	local_info_t *local = (local_info_t *) data;
+	int i;
+
+	if (off > PROC_LIMIT) {
+		*eof = 1;
+		return 0;
+	}
+
+	p += sprintf(p, "tx_keyidx=%d\n", local->tx_keyidx);
+	for (i = 0; i < WEP_KEYS; i++) {
+		if (local->crypt[i] && local->crypt[i]->ops &&
+		    local->crypt[i]->ops->print_stats) {
+			p = local->crypt[i]->ops->print_stats(
+				p, local->crypt[i]->priv);
+		}
+	}
+
+	if ((p - page) <= off) {
+		*eof = 1;
+		return 0;
+	}
+
+	*start = page + off;
+
+	return (p - page - off);
+}
+
+
+static int prism2_pda_proc_read(char *page, char **start, off_t off,
+				int count, int *eof, void *data)
+{
+	local_info_t *local = (local_info_t *) data;
+
+	if (local->pda == NULL || off >= PRISM2_PDA_SIZE) {
+		*eof = 1;
+		return 0;
+	}
+
+	if (off + count > PRISM2_PDA_SIZE)
+		count = PRISM2_PDA_SIZE - off;
+
+	memcpy(page, local->pda + off, count);
+	return count;
+}
+
+
+static int prism2_aux_dump_proc_read(char *page, char **start, off_t off,
+				     int count, int *eof, void *data)
+{
+	local_info_t *local = (local_info_t *) data;
+
+	if (local->func->read_aux == NULL) {
+		*eof = 1;
+		return 0;
+	}
+
+	if (local->func->read_aux(local->dev, off, count, page)) {
+		*eof = 1;
+		return 0;
+	}
+	*start = page;
+
+	return count;
+}
+
+
+#ifdef PRISM2_IO_DEBUG
+static int prism2_io_debug_proc_read(char *page, char **start, off_t off,
+				     int count, int *eof, void *data)
+{
+	local_info_t *local = (local_info_t *) data;
+	int head = local->io_debug_head;
+	int start_bytes, left, copy, copied;
+
+	if (off + count > PRISM2_IO_DEBUG_SIZE * 4) {
+		*eof = 1;
+		if (off >= PRISM2_IO_DEBUG_SIZE * 4)
+			return 0;
+		count = PRISM2_IO_DEBUG_SIZE * 4 - off;
+	}
+
+	copied = 0;
+	start_bytes = (PRISM2_IO_DEBUG_SIZE - head) * 4;
+	left = count;
+
+	if (off < start_bytes) {
+		copy = start_bytes - off;
+		if (copy > count)
+			copy = count;
+		memcpy(page, ((u8 *) &local->io_debug[head]) + off, copy);
+		left -= copy;
+		if (left > 0)
+			memcpy(&page[copy], local->io_debug, left);
+	} else {
+		memcpy(page, ((u8 *) local->io_debug) + (off - start_bytes),
+		       left);
+	}
+
+	*start = page;
+
+	return count;
+}
+#endif /* PRISM2_IO_DEBUG */
+
+
+#ifndef PRISM2_NO_STATION_MODES
+static int prism2_scan_results_proc_read(char *page, char **start, off_t off,
+					 int count, int *eof, void *data)
+{
+	char *p = page;
+	local_info_t *local = (local_info_t *) data;
+	int entries, entry, i, len, total = 0, hostscan;
+	struct hfa384x_scan_result *scanres;
+	struct hfa384x_hostscan_result *hscanres;
+	u8 *pos;
+
+	p += sprintf(p, "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates "
+		     "SSID\n");
+
+	spin_lock_bh(&local->lock);
+	hostscan = local->last_scan_type == PRISM2_HOSTSCAN;
+	entries = hostscan ? local->last_hostscan_results_count :
+		local->last_scan_results_count;
+	for (entry = 0; entry < entries; entry++) {
+		hscanres = &local->last_hostscan_results[entry];
+		scanres = &local->last_scan_results[entry];
+
+		if (total + (p - page) <= off) {
+			total += p - page;
+			p = page;
+		}
+		if (total + (p - page) > off + count)
+			break;
+		if ((p - page) > (PAGE_SIZE - 200))
+			break;
+
+		if (hostscan) {
+			p += sprintf(p, "%d %d %d %d 0x%02x %d " MACSTR " %d ",
+				     le16_to_cpu(hscanres->chid),
+				     (s16) le16_to_cpu(hscanres->anl),
+				     (s16) le16_to_cpu(hscanres->sl),
+				     le16_to_cpu(hscanres->beacon_interval),
+				     le16_to_cpu(hscanres->capability),
+				     le16_to_cpu(hscanres->rate),
+				     MAC2STR(hscanres->bssid),
+				     le16_to_cpu(hscanres->atim));
+		} else {
+			p += sprintf(p, "%d %d %d %d 0x%02x %d " MACSTR
+				     " N/A ",
+				     le16_to_cpu(scanres->chid),
+				     (s16) le16_to_cpu(scanres->anl),
+				     (s16) le16_to_cpu(scanres->sl),
+				     le16_to_cpu(scanres->beacon_interval),
+				     le16_to_cpu(scanres->capability),
+				     le16_to_cpu(scanres->rate),
+				     MAC2STR(scanres->bssid));
+		}
+
+		pos = hostscan ? hscanres->sup_rates : scanres->sup_rates;
+		for (i = 0; i < sizeof(hscanres->sup_rates); i++) {
+			if (pos[i] == 0)
+				break;
+			p += sprintf(p, "<%02x>", pos[i]);
+		}
+		p += sprintf(p, " ");
+
+		pos = hostscan ? hscanres->ssid : scanres->ssid;
+		len = le16_to_cpu(hostscan ? hscanres->ssid_len :
+				  scanres->ssid_len);
+		if (len > 32)
+			len = 32;
+		for (i = 0; i < len; i++) {
+			unsigned char c = pos[i];
+			if (c >= 32 && c < 127)
+				p += sprintf(p, "%c", c);
+			else
+				p += sprintf(p, "<%02x>", c);
+		}
+		p += sprintf(p, "\n");
+	}
+	spin_unlock_bh(&local->lock);
+
+	total += (p - page);
+	if (total >= off + count)
+		*eof = 1;
+
+	if (total < off) {
+		*eof = 1;
+		return 0;
+	}
+
+	len = total - off;
+	if (len > (p - page))
+		len = p - page;
+	*start = p - len;
+	if (len > count)
+		len = count;
+
+	return len;
+}
+#endif /* PRISM2_NO_STATION_MODES */
+
+
+void hostap_init_proc(local_info_t *local)
+{
+	local->proc = NULL;
+
+	if (hostap_proc == NULL) {
+		printk(KERN_WARNING "%s: hostap proc directory not created\n",
+		       local->dev->name);
+		return;
+	}
+
+	local->proc = proc_mkdir(local->ddev->name, hostap_proc);
+	if (local->proc == NULL) {
+		printk(KERN_INFO "/proc/net/hostap/%s creation failed\n",
+		       local->ddev->name);
+		return;
+	}
+
+#ifndef PRISM2_NO_PROCFS_DEBUG
+	create_proc_read_entry("debug", 0, local->proc,
+			       prism2_debug_proc_read, local);
+#endif /* PRISM2_NO_PROCFS_DEBUG */
+	create_proc_read_entry("stats", 0, local->proc,
+			       prism2_stats_proc_read, local);
+	create_proc_read_entry("wds", 0, local->proc,
+			       prism2_wds_proc_read, local);
+	create_proc_read_entry("pda", 0, local->proc,
+			       prism2_pda_proc_read, local);
+	create_proc_read_entry("aux_dump", 0, local->proc,
+			       prism2_aux_dump_proc_read, local);
+	create_proc_read_entry("bss_list", 0, local->proc,
+			       prism2_bss_list_proc_read, local);
+	create_proc_read_entry("crypt", 0, local->proc,
+			       prism2_crypt_proc_read, local);
+#ifdef PRISM2_IO_DEBUG
+	create_proc_read_entry("io_debug", 0, local->proc,
+			       prism2_io_debug_proc_read, local);
+#endif /* PRISM2_IO_DEBUG */
+#ifndef PRISM2_NO_STATION_MODES
+	create_proc_read_entry("scan_results", 0, local->proc,
+			       prism2_scan_results_proc_read, local);
+#endif /* PRISM2_NO_STATION_MODES */
+}
+
+
+void hostap_remove_proc(local_info_t *local)
+{
+	if (local->proc != NULL) {
+#ifndef PRISM2_NO_STATION_MODES
+		remove_proc_entry("scan_results", local->proc);
+#endif /* PRISM2_NO_STATION_MODES */
+#ifdef PRISM2_IO_DEBUG
+		remove_proc_entry("io_debug", local->proc);
+#endif /* PRISM2_IO_DEBUG */
+		remove_proc_entry("pda", local->proc);
+		remove_proc_entry("aux_dump", local->proc);
+		remove_proc_entry("wds", local->proc);
+		remove_proc_entry("stats", local->proc);
+		remove_proc_entry("bss_list", local->proc);
+		remove_proc_entry("crypt", local->proc);
+#ifndef PRISM2_NO_PROCFS_DEBUG
+		remove_proc_entry("debug", local->proc);
+#endif /* PRISM2_NO_PROCFS_DEBUG */
+		if (hostap_proc != NULL)
+			remove_proc_entry(local->proc->name, hostap_proc);
+	}
+}
+
+
+EXPORT_SYMBOL(hostap_init_proc);
+EXPORT_SYMBOL(hostap_remove_proc);