1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/vendor.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/vendor.c
new file mode 100644
index 000000000..d07e7c735
--- /dev/null
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/vendor.c
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Copyright (c) 2014 Broadcom Corporation
+ */
+
+#include <linux/vmalloc.h>
+#include <net/cfg80211.h>
+#include <net/netlink.h>
+
+#include <brcmu_wifi.h>
+#include "fwil_types.h"
+#include "core.h"
+#include "p2p.h"
+#include "debug.h"
+#include "cfg80211.h"
+#include "vendor.h"
+#include "fwil.h"
+
+static int brcmf_cfg80211_vndr_cmds_dcmd_handler(struct wiphy *wiphy,
+						 struct wireless_dev *wdev,
+						 const void *data, int len)
+{
+	struct brcmf_cfg80211_vif *vif;
+	struct brcmf_if *ifp;
+	const struct brcmf_vndr_dcmd_hdr *cmdhdr = data;
+	struct sk_buff *reply;
+	unsigned int payload, ret_len;
+	void *dcmd_buf = NULL, *wr_pointer;
+	u16 msglen, maxmsglen = PAGE_SIZE - 0x100;
+	int ret;
+
+	if (len < sizeof(*cmdhdr)) {
+		brcmf_err("vendor command too short: %d\n", len);
+		return -EINVAL;
+	}
+
+	vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev);
+	ifp = vif->ifp;
+
+	brcmf_dbg(TRACE, "ifidx=%d, cmd=%d\n", ifp->ifidx, cmdhdr->cmd);
+
+	if (cmdhdr->offset > len) {
+		brcmf_err("bad buffer offset %d > %d\n", cmdhdr->offset, len);
+		return -EINVAL;
+	}
+
+	len -= cmdhdr->offset;
+	ret_len = cmdhdr->len;
+	if (ret_len > 0 || len > 0) {
+		if (len > BRCMF_DCMD_MAXLEN) {
+			brcmf_err("oversize input buffer %d\n", len);
+			len = BRCMF_DCMD_MAXLEN;
+		}
+		if (ret_len > BRCMF_DCMD_MAXLEN) {
+			brcmf_err("oversize return buffer %d\n", ret_len);
+			ret_len = BRCMF_DCMD_MAXLEN;
+		}
+		payload = max_t(unsigned int, ret_len, len) + 1;
+		dcmd_buf = vzalloc(payload);
+		if (NULL == dcmd_buf)
+			return -ENOMEM;
+
+		memcpy(dcmd_buf, (void *)cmdhdr + cmdhdr->offset, len);
+		*(char *)(dcmd_buf + len)  = '\0';
+	}
+
+	if (cmdhdr->set)
+		ret = brcmf_fil_cmd_data_set(ifp, cmdhdr->cmd, dcmd_buf,
+					     ret_len);
+	else
+		ret = brcmf_fil_cmd_data_get(ifp, cmdhdr->cmd, dcmd_buf,
+					     ret_len);
+	if (ret != 0)
+		goto exit;
+
+	wr_pointer = dcmd_buf;
+	while (ret_len > 0) {
+		msglen = ret_len > maxmsglen ? maxmsglen : ret_len;
+		ret_len -= msglen;
+		payload = msglen + sizeof(msglen);
+		reply = cfg80211_vendor_cmd_alloc_reply_skb(wiphy, payload);
+		if (NULL == reply) {
+			ret = -ENOMEM;
+			break;
+		}
+
+		if (nla_put(reply, BRCMF_NLATTR_DATA, msglen, wr_pointer) ||
+		    nla_put_u16(reply, BRCMF_NLATTR_LEN, msglen)) {
+			kfree_skb(reply);
+			ret = -ENOBUFS;
+			break;
+		}
+
+		ret = cfg80211_vendor_cmd_reply(reply);
+		if (ret)
+			break;
+
+		wr_pointer += msglen;
+	}
+
+exit:
+	vfree(dcmd_buf);
+
+	return ret;
+}
+
+const struct wiphy_vendor_command brcmf_vendor_cmds[] = {
+	{
+		{
+			.vendor_id = BROADCOM_OUI,
+			.subcmd = BRCMF_VNDR_CMDS_DCMD
+		},
+		.flags = WIPHY_VENDOR_CMD_NEED_WDEV |
+			 WIPHY_VENDOR_CMD_NEED_NETDEV,
+		.policy = VENDOR_CMD_RAW_DATA,
+		.doit = brcmf_cfg80211_vndr_cmds_dcmd_handler
+	},
+};