From: Viktor Barna <viktor.barna@xxxxxxxxxx>
(Part of the split. Please, take a look at the cover letter for more
details).
Signed-off-by: Viktor Barna <viktor.barna@xxxxxxxxxx>
---
drivers/net/wireless/celeno/cl8k/utils/ip.h | 51 +++++++++++++++++++++
1 file changed, 51 insertions(+)
create mode 100644 drivers/net/wireless/celeno/cl8k/utils/ip.h
diff --git a/drivers/net/wireless/celeno/cl8k/utils/ip.h b/drivers/net/wireless/celeno/cl8k/utils/ip.h
new file mode 100644
index 000000000000..93aa9fcc2384
--- /dev/null
+++ b/drivers/net/wireless/celeno/cl8k/utils/ip.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: MIT */
+/* Copyright(c) 2019-2021, Celeno Communications Ltd. */
+
+#ifndef CL_IP_H
+#define CL_IP_H
+
+#include <linux/version.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/if_vlan.h>
+#include <linux/netdevice.h>
+#include <linux/igmp.h>
+#include <asm/unaligned.h>
+
+/* Check if a packet has specific LLC fields e.g. DSAP, SSAP and Control */
+#define PKT_HAS_LLC_HDR(a) ((a[0] == 0xAA) && (a[1] == 0xAA) && (a[2] == 0x03))
+#define LENGTH_LLC 3
+#define LENGTH_SSNAP 5
+
+/* Multiply by 4 because IHL is number of 32-bit words */
+#define IPV4_HDR_LEN(ihl) ((ihl) << 2)
+#define TCP_ACK_MAX_LEN 100
+
+bool set_network_header_if_proto(struct sk_buff *skb, u16 protocol);
+bool is_ipv4_packet(struct sk_buff *skb);
+bool is_ipv6_packet(struct sk_buff *skb);
+bool is_ssdp_packet(struct sk_buff *skb);
+bool is_mdns_packet(const u8 *dest_mac);
+bool is_ipv4_service_multicast_packet(struct sk_buff *skb);
+bool is_ipv6_service_multicast_packet(struct sk_buff *skb);
+bool is_tcp_ack(struct sk_buff *skb, bool *syn_rst_push);
+
+static inline unsigned short get_ether_type(int offset, unsigned char *src_buf)
+{
+ unsigned short type_len = *(unsigned short *)(src_buf + offset);
+
+ return htons(type_len);
+}
+
+static inline bool cl_ip_addr_parse_str(const u8 *str, u8 *addr)
+{
+ return (sscanf(str,
+ "%hhd.%hhd.%hhd.%hhd",
+ &addr[0],
+ &addr[1],
+ &addr[2],
+ &addr[3]) == 4);
+}
+
+#endif /* CL_IP_H */
--
2.30.0
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