258 lines
6.4 KiB
C
258 lines
6.4 KiB
C
/** @file
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@brief Network stack private header
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This is not to be included by the application.
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*/
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/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <errno.h>
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#include <sys/printk.h>
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#include <net/net_context.h>
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#include <net/net_pkt.h>
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#ifdef CONFIG_NET_MGMT_EVENT_INFO
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#include <net/net_event.h>
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/* Maximum size of "struct net_event_ipv6_addr" or
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* "struct net_event_ipv6_nbr" or "struct net_event_ipv6_route".
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* NOTE: Update comments here and calculate which struct occupies max size.
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*/
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#ifdef CONFIG_NET_L2_WIFI_MGMT
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#include <net/wifi_mgmt.h>
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#define NET_EVENT_INFO_MAX_SIZE sizeof(struct wifi_scan_result)
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#else
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#if defined(CONFIG_NET_DHCPV4)
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#define NET_EVENT_INFO_MAX_SIZE sizeof(struct net_if_dhcpv4)
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#else
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#define NET_EVENT_INFO_MAX_SIZE sizeof(struct net_event_ipv6_route)
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#endif
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#endif /* CONFIG_NET_L2_WIFI_MGMT */
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#endif /* CONFIG_NET_MGMT_EVENT_INFO */
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#include "connection.h"
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extern void net_if_init(void);
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extern void net_if_post_init(void);
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extern void net_if_carrier_down(struct net_if *iface);
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extern void net_if_stats_reset(struct net_if *iface);
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extern void net_if_stats_reset_all(void);
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#if defined(CONFIG_NET_NATIVE) || defined(CONFIG_NET_OFFLOAD)
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extern void net_context_init(void);
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extern const char *net_context_state(struct net_context *context);
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extern void net_pkt_init(void);
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extern void net_tc_tx_init(void);
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extern void net_tc_rx_init(void);
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#else
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static inline void net_context_init(void) { }
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static inline void net_pkt_init(void) { }
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static inline void net_tc_tx_init(void) { }
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static inline void net_tc_rx_init(void) { }
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static inline const char *net_context_state(struct net_context *context)
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{
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ARG_UNUSED(context);
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return NULL;
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}
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#endif
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#if defined(CONFIG_NET_NATIVE)
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enum net_verdict net_ipv4_input(struct net_pkt *pkt);
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enum net_verdict net_ipv6_input(struct net_pkt *pkt, bool is_loopback);
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#else
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static inline enum net_verdict net_ipv4_input(struct net_pkt *pkt)
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{
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ARG_UNUSED(pkt);
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return NET_CONTINUE;
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}
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static inline enum net_verdict net_ipv6_input(struct net_pkt *pkt,
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bool is_loopback)
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{
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ARG_UNUSED(pkt);
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ARG_UNUSED(is_loopback);
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return NET_CONTINUE;
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}
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#endif
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extern bool net_tc_submit_to_tx_queue(uint8_t tc, struct net_pkt *pkt);
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extern void net_tc_submit_to_rx_queue(uint8_t tc, struct net_pkt *pkt);
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extern enum net_verdict net_promisc_mode_input(struct net_pkt *pkt);
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char *net_sprint_addr(sa_family_t af, const void *addr);
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#define net_sprint_ipv4_addr(_addr) net_sprint_addr(AF_INET, _addr)
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#define net_sprint_ipv6_addr(_addr) net_sprint_addr(AF_INET6, _addr)
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#if defined(CONFIG_COAP)
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/**
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* @brief CoAP init function declaration. It belongs here because we don't want
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* to expose it as a public API -- it should only be called once, and only by
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* net_core.
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*/
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extern void net_coap_init(void);
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#else
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static inline void net_coap_init(void)
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{
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return;
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}
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#endif
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#if defined(CONFIG_NET_GPTP)
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/**
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* @brief Initialize Precision Time Protocol Layer.
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*/
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void net_gptp_init(void);
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/**
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* @brief Process a ptp message.
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*
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* @param buf Buffer with a valid PTP Ethernet type.
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*
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* @return Return the policy for network buffer.
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*/
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enum net_verdict net_gptp_recv(struct net_if *iface, struct net_pkt *pkt);
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#else
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#define net_gptp_init()
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#define net_gptp_recv(iface, pkt) NET_DROP
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#endif /* CONFIG_NET_GPTP */
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#if defined(CONFIG_NET_IPV6_FRAGMENT)
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int net_ipv6_send_fragmented_pkt(struct net_if *iface, struct net_pkt *pkt,
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uint16_t pkt_len);
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#endif
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extern const char *net_proto2str(int family, int proto);
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extern char *net_byte_to_hex(char *ptr, uint8_t byte, char base, bool pad);
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extern char *net_sprint_ll_addr_buf(const uint8_t *ll, uint8_t ll_len,
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char *buf, int buflen);
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extern uint16_t net_calc_chksum(struct net_pkt *pkt, uint8_t proto);
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/**
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* @brief Deliver the incoming packet through the recv_cb of the net_context
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* to the upper layers
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*
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* @param conn Network connection
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* @param pkt Network packet
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* @param ip_hdr Pointer to IP header, optional
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* @param proto_hdr Pointer to transport layer protocol header, optional
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* @param user_data User data passed as an argument
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*
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* @return NET_OK if the packet is consumed through the recv_cb
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* NET_DROP if the recv_cb isn't set
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*/
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enum net_verdict net_context_packet_received(struct net_conn *conn,
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struct net_pkt *pkt,
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union net_ip_header *ip_hdr,
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union net_proto_header *proto_hdr,
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void *user_data);
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#if defined(CONFIG_NET_IPV4)
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extern uint16_t net_calc_chksum_ipv4(struct net_pkt *pkt);
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#endif /* CONFIG_NET_IPV4 */
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static inline uint16_t net_calc_chksum_icmpv6(struct net_pkt *pkt)
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{
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return net_calc_chksum(pkt, IPPROTO_ICMPV6);
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}
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static inline uint16_t net_calc_chksum_icmpv4(struct net_pkt *pkt)
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{
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return net_calc_chksum(pkt, IPPROTO_ICMP);
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}
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static inline uint16_t net_calc_chksum_udp(struct net_pkt *pkt)
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{
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uint16_t chksum = net_calc_chksum(pkt, IPPROTO_UDP);
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return chksum == 0U ? 0xffff : chksum;
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}
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static inline uint16_t net_calc_verify_chksum_udp(struct net_pkt *pkt)
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{
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return net_calc_chksum(pkt, IPPROTO_UDP);
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}
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static inline uint16_t net_calc_chksum_tcp(struct net_pkt *pkt)
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{
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return net_calc_chksum(pkt, IPPROTO_TCP);
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}
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static inline char *net_sprint_ll_addr(const uint8_t *ll, uint8_t ll_len)
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{
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static char buf[sizeof("xx:xx:xx:xx:xx:xx:xx:xx")];
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return net_sprint_ll_addr_buf(ll, ll_len, (char *)buf, sizeof(buf));
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}
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static inline void net_hexdump(const char *str,
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const uint8_t *packet, size_t length)
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{
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if (!length) {
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LOG_DBG("%s zero-length packet", str);
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return;
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}
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LOG_HEXDUMP_DBG(packet, length, str);
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}
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/* Hexdump from all fragments */
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static inline void net_pkt_hexdump(struct net_pkt *pkt, const char *str)
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{
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struct net_buf *buf = pkt->buffer;
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char pkt_str[sizeof("0x") + sizeof(intptr_t) * 2];
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if (str && str[0]) {
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LOG_DBG("%s", log_strdup(str));
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}
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snprintk(pkt_str, sizeof(pkt_str), "%p", pkt);
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while (buf) {
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LOG_HEXDUMP_DBG(buf->data, buf->len, log_strdup(pkt_str));
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buf = buf->frags;
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}
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}
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static inline void net_pkt_print_buffer_info(struct net_pkt *pkt, const char *str)
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{
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struct net_buf *buf = pkt->buffer;
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if (str) {
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printk("%s", str);
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}
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printk("%p[%d]", pkt, atomic_get(&pkt->atomic_ref));
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if (buf) {
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printk("->");
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}
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while (buf) {
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printk("%p[%d/%u (%u/%u)]", buf, atomic_get(&pkt->atomic_ref),
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buf->len, net_buf_max_len(buf), buf->size);
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buf = buf->frags;
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if (buf) {
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printk("->");
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}
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}
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printk("\n");
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}
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