1 files changed, 410 insertions, 0 deletions

diff --git a/drivers/net/wireless/intersil/hostap/hostap_proc.c b/drivers/net/wireless/intersil/hostap/hostap_proc.c
new file mode 100644
index 000000000..97c270845
--- /dev/null
+++ b/drivers/net/wireless/intersil/hostap/hostap_proc.c
@@ -0,0 +1,410 @@
+// SPDX-License-Identifier: GPL-2.0
+/* /proc routines for Host AP driver */
+
+#include <linux/types.h>
+#include <linux/proc_fs.h>
+#include <linux/export.h>
+#include <net/lib80211.h>
+
+#include "hostap_wlan.h"
+#include "hostap.h"
+
+#define PROC_LIMIT (PAGE_SIZE - 80)
+
+#if !defined(PRISM2_NO_PROCFS_DEBUG) && defined(CONFIG_PROC_FS)
+static int prism2_debug_proc_show(struct seq_file *m, void *v)
+{
+	local_info_t *local = m->private;
+	int i;
+
+	seq_printf(m, "next_txfid=%d next_alloc=%d\n",
+		   local->next_txfid, local->next_alloc);
+	for (i = 0; i < PRISM2_TXFID_COUNT; i++)
+		seq_printf(m, "FID: tx=%04X intransmit=%04X\n",
+			   local->txfid[i], local->intransmitfid[i]);
+	seq_printf(m, "FW TX rate control: %d\n", local->fw_tx_rate_control);
+	seq_printf(m, "beacon_int=%d\n", local->beacon_int);
+	seq_printf(m, "dtim_period=%d\n", local->dtim_period);
+	seq_printf(m, "wds_max_connections=%d\n", local->wds_max_connections);
+	seq_printf(m, "dev_enabled=%d\n", local->dev_enabled);
+	seq_printf(m, "sw_tick_stuck=%d\n", local->sw_tick_stuck);
+	for (i = 0; i < WEP_KEYS; i++) {
+		if (local->crypt_info.crypt[i] &&
+		    local->crypt_info.crypt[i]->ops) {
+			seq_printf(m, "crypt[%d]=%s\n", i,
+				   local->crypt_info.crypt[i]->ops->name);
+		}
+	}
+	seq_printf(m, "pri_only=%d\n", local->pri_only);
+	seq_printf(m, "pci=%d\n", local->func->hw_type == HOSTAP_HW_PCI);
+	seq_printf(m, "sram_type=%d\n", local->sram_type);
+	seq_printf(m, "no_pri=%d\n", local->no_pri);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PROC_FS
+static int prism2_stats_proc_show(struct seq_file *m, void *v)
+{
+	local_info_t *local = m->private;
+	struct comm_tallies_sums *sums = &local->comm_tallies;
+
+	seq_printf(m, "TxUnicastFrames=%u\n", sums->tx_unicast_frames);
+	seq_printf(m, "TxMulticastframes=%u\n", sums->tx_multicast_frames);
+	seq_printf(m, "TxFragments=%u\n", sums->tx_fragments);
+	seq_printf(m, "TxUnicastOctets=%u\n", sums->tx_unicast_octets);
+	seq_printf(m, "TxMulticastOctets=%u\n", sums->tx_multicast_octets);
+	seq_printf(m, "TxDeferredTransmissions=%u\n",
+		   sums->tx_deferred_transmissions);
+	seq_printf(m, "TxSingleRetryFrames=%u\n", sums->tx_single_retry_frames);
+	seq_printf(m, "TxMultipleRetryFrames=%u\n",
+		   sums->tx_multiple_retry_frames);
+	seq_printf(m, "TxRetryLimitExceeded=%u\n",
+		   sums->tx_retry_limit_exceeded);
+	seq_printf(m, "TxDiscards=%u\n", sums->tx_discards);
+	seq_printf(m, "RxUnicastFrames=%u\n", sums->rx_unicast_frames);
+	seq_printf(m, "RxMulticastFrames=%u\n", sums->rx_multicast_frames);
+	seq_printf(m, "RxFragments=%u\n", sums->rx_fragments);
+	seq_printf(m, "RxUnicastOctets=%u\n", sums->rx_unicast_octets);
+	seq_printf(m, "RxMulticastOctets=%u\n", sums->rx_multicast_octets);
+	seq_printf(m, "RxFCSErrors=%u\n", sums->rx_fcs_errors);
+	seq_printf(m, "RxDiscardsNoBuffer=%u\n", sums->rx_discards_no_buffer);
+	seq_printf(m, "TxDiscardsWrongSA=%u\n", sums->tx_discards_wrong_sa);
+	seq_printf(m, "RxDiscardsWEPUndecryptable=%u\n",
+		   sums->rx_discards_wep_undecryptable);
+	seq_printf(m, "RxMessageInMsgFragments=%u\n",
+		   sums->rx_message_in_msg_fragments);
+	seq_printf(m, "RxMessageInBadMsgFragments=%u\n",
+		   sums->rx_message_in_bad_msg_fragments);
+	/* FIX: this may grow too long for one page(?) */
+
+	return 0;
+}
+#endif
+
+static int prism2_wds_proc_show(struct seq_file *m, void *v)
+{
+	struct list_head *ptr = v;
+	struct hostap_interface *iface;
+
+	iface = list_entry(ptr, struct hostap_interface, list);
+	if (iface->type == HOSTAP_INTERFACE_WDS)
+		seq_printf(m, "%s\t%pM\n",
+			   iface->dev->name, iface->u.wds.remote_addr);
+	return 0;
+}
+
+static void *prism2_wds_proc_start(struct seq_file *m, loff_t *_pos)
+{
+	local_info_t *local = PDE_DATA(file_inode(m->file));
+	read_lock_bh(&local->iface_lock);
+	return seq_list_start(&local->hostap_interfaces, *_pos);
+}
+
+static void *prism2_wds_proc_next(struct seq_file *m, void *v, loff_t *_pos)
+{
+	local_info_t *local = PDE_DATA(file_inode(m->file));
+	return seq_list_next(v, &local->hostap_interfaces, _pos);
+}
+
+static void prism2_wds_proc_stop(struct seq_file *m, void *v)
+{
+	local_info_t *local = PDE_DATA(file_inode(m->file));
+	read_unlock_bh(&local->iface_lock);
+}
+
+static const struct seq_operations prism2_wds_proc_seqops = {
+	.start	= prism2_wds_proc_start,
+	.next	= prism2_wds_proc_next,
+	.stop	= prism2_wds_proc_stop,
+	.show	= prism2_wds_proc_show,
+};
+
+static int prism2_bss_list_proc_show(struct seq_file *m, void *v)
+{
+	local_info_t *local = PDE_DATA(file_inode(m->file));
+	struct list_head *ptr = v;
+	struct hostap_bss_info *bss;
+
+	if (ptr == &local->bss_list) {
+		seq_printf(m, "#BSSID\tlast_update\tcount\tcapab_info\tSSID(txt)\t"
+			   "SSID(hex)\tWPA IE\n");
+		return 0;
+	}
+
+	bss = list_entry(ptr, struct hostap_bss_info, list);
+	seq_printf(m, "%pM\t%lu\t%u\t0x%x\t",
+		   bss->bssid, bss->last_update,
+		   bss->count, bss->capab_info);
+
+	seq_printf(m, "%*pE", (int)bss->ssid_len, bss->ssid);
+
+	seq_putc(m, '\t');
+	seq_printf(m, "%*phN", (int)bss->ssid_len, bss->ssid);
+	seq_putc(m, '\t');
+	seq_printf(m, "%*phN", (int)bss->wpa_ie_len, bss->wpa_ie);
+	seq_putc(m, '\n');
+	return 0;
+}
+
+static void *prism2_bss_list_proc_start(struct seq_file *m, loff_t *_pos)
+	__acquires(&local->lock)
+{
+	local_info_t *local = PDE_DATA(file_inode(m->file));
+	spin_lock_bh(&local->lock);
+	return seq_list_start_head(&local->bss_list, *_pos);
+}
+
+static void *prism2_bss_list_proc_next(struct seq_file *m, void *v, loff_t *_pos)
+{
+	local_info_t *local = PDE_DATA(file_inode(m->file));
+	return seq_list_next(v, &local->bss_list, _pos);
+}
+
+static void prism2_bss_list_proc_stop(struct seq_file *m, void *v)
+	__releases(&local->lock)
+{
+	local_info_t *local = PDE_DATA(file_inode(m->file));
+	spin_unlock_bh(&local->lock);
+}
+
+static const struct seq_operations prism2_bss_list_proc_seqops = {
+	.start	= prism2_bss_list_proc_start,
+	.next	= prism2_bss_list_proc_next,
+	.stop	= prism2_bss_list_proc_stop,
+	.show	= prism2_bss_list_proc_show,
+};
+
+#ifdef CONFIG_PROC_FS
+static int prism2_crypt_proc_show(struct seq_file *m, void *v)
+{
+	local_info_t *local = m->private;
+	int i;
+
+	seq_printf(m, "tx_keyidx=%d\n", local->crypt_info.tx_keyidx);
+	for (i = 0; i < WEP_KEYS; i++) {
+		if (local->crypt_info.crypt[i] &&
+		    local->crypt_info.crypt[i]->ops &&
+		    local->crypt_info.crypt[i]->ops->print_stats) {
+			local->crypt_info.crypt[i]->ops->print_stats(
+				m, local->crypt_info.crypt[i]->priv);
+		}
+	}
+	return 0;
+}
+#endif
+
+static ssize_t prism2_pda_proc_read(struct file *file, char __user *buf,
+				    size_t count, loff_t *_pos)
+{
+	local_info_t *local = PDE_DATA(file_inode(file));
+	size_t off;
+
+	if (local->pda == NULL || *_pos >= PRISM2_PDA_SIZE)
+		return 0;
+
+	off = *_pos;
+	if (count > PRISM2_PDA_SIZE - off)
+		count = PRISM2_PDA_SIZE - off;
+	if (copy_to_user(buf, local->pda + off, count) != 0)
+		return -EFAULT;
+	*_pos += count;
+	return count;
+}
+
+static const struct proc_ops prism2_pda_proc_ops = {
+	.proc_read	= prism2_pda_proc_read,
+	.proc_lseek	= generic_file_llseek,
+};
+
+
+static ssize_t prism2_aux_dump_proc_no_read(struct file *file, char __user *buf,
+					    size_t bufsize, loff_t *_pos)
+{
+	return 0;
+}
+
+static const struct proc_ops prism2_aux_dump_proc_ops = {
+	.proc_read	= prism2_aux_dump_proc_no_read,
+};
+
+
+#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;
+
+	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;
+	}
+
+	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_show(struct seq_file *m, void *v)
+{
+	local_info_t *local = PDE_DATA(file_inode(m->file));
+	unsigned long entry;
+	int i, len;
+	struct hfa384x_hostscan_result *scanres;
+	u8 *p;
+
+	if (v == SEQ_START_TOKEN) {
+		seq_printf(m,
+			   "CHID ANL SL BcnInt Capab Rate BSSID ATIM SupRates SSID\n");
+		return 0;
+	}
+
+	entry = (unsigned long)v - 2;
+	scanres = &local->last_scan_results[entry];
+
+	seq_printf(m, "%d %d %d %d 0x%02x %d %pM %d ",
+		   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),
+		   scanres->bssid,
+		   le16_to_cpu(scanres->atim));
+
+	p = scanres->sup_rates;
+	for (i = 0; i < sizeof(scanres->sup_rates); i++) {
+		if (p[i] == 0)
+			break;
+		seq_printf(m, "<%02x>", p[i]);
+	}
+	seq_putc(m, ' ');
+
+	p = scanres->ssid;
+	len = le16_to_cpu(scanres->ssid_len);
+	if (len > 32)
+		len = 32;
+	for (i = 0; i < len; i++) {
+		unsigned char c = p[i];
+		if (c >= 32 && c < 127)
+			seq_putc(m, c);
+		else
+			seq_printf(m, "<%02x>", c);
+	}
+	seq_putc(m, '\n');
+	return 0;
+}
+
+static void *prism2_scan_results_proc_start(struct seq_file *m, loff_t *_pos)
+{
+	local_info_t *local = PDE_DATA(file_inode(m->file));
+	spin_lock_bh(&local->lock);
+
+	/* We have a header (pos 0) + N results to show (pos 1...N) */
+	if (*_pos > local->last_scan_results_count)
+		return NULL;
+	return (void *)(unsigned long)(*_pos + 1); /* 0 would be EOF */
+}
+
+static void *prism2_scan_results_proc_next(struct seq_file *m, void *v, loff_t *_pos)
+{
+	local_info_t *local = PDE_DATA(file_inode(m->file));
+
+	++*_pos;
+	if (*_pos > local->last_scan_results_count)
+		return NULL;
+	return (void *)(unsigned long)(*_pos + 1); /* 0 would be EOF */
+}
+
+static void prism2_scan_results_proc_stop(struct seq_file *m, void *v)
+{
+	local_info_t *local = PDE_DATA(file_inode(m->file));
+	spin_unlock_bh(&local->lock);
+}
+
+static const struct seq_operations prism2_scan_results_proc_seqops = {
+	.start	= prism2_scan_results_proc_start,
+	.next	= prism2_scan_results_proc_next,
+	.stop	= prism2_scan_results_proc_stop,
+	.show	= prism2_scan_results_proc_show,
+};
+#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
+	proc_create_single_data("debug", 0, local->proc,
+			prism2_debug_proc_show, local);
+#endif /* PRISM2_NO_PROCFS_DEBUG */
+	proc_create_single_data("stats", 0, local->proc, prism2_stats_proc_show,
+			local);
+	proc_create_seq_data("wds", 0, local->proc,
+			&prism2_wds_proc_seqops, local);
+	proc_create_data("pda", 0, local->proc,
+			 &prism2_pda_proc_ops, local);
+	proc_create_data("aux_dump", 0, local->proc,
+			 local->func->read_aux_proc_ops ?: &prism2_aux_dump_proc_ops,
+			 local);
+	proc_create_seq_data("bss_list", 0, local->proc,
+			&prism2_bss_list_proc_seqops, local);
+	proc_create_single_data("crypt", 0, local->proc, prism2_crypt_proc_show,
+		local);
+#ifdef PRISM2_IO_DEBUG
+	proc_create_single_data("io_debug", 0, local->proc,
+			prism2_debug_proc_show, local);
+#endif /* PRISM2_IO_DEBUG */
+#ifndef PRISM2_NO_STATION_MODES
+	proc_create_seq_data("scan_results", 0, local->proc,
+			&prism2_scan_results_proc_seqops, local);
+#endif /* PRISM2_NO_STATION_MODES */
+}
+
+
+void hostap_remove_proc(local_info_t *local)
+{
+	proc_remove(local->proc);
+}
+
+
+EXPORT_SYMBOL(hostap_init_proc);
+EXPORT_SYMBOL(hostap_remove_proc);