bd3908b2a9
This commit changes the net_buf getter functions in nbuf.h by adding a timeout parameter. These function prototypes are changed to accept a timeout parameter. net_nbuf_get_rx() net_nbuf_get_tx() net_nbuf_get_data() net_nbuf_get_reserve_rx() net_nbuf_get_reserve_tx() net_nbuf_get_reserve_data() net_nbuf_copy() net_nbuf_copy_all() net_nbuf_push() net_nbuf_append() net_nbuf_write() net_nbuf_insert() Following convinience functions have not been changed net_nbuf_append_u8 net_nbuf_append_be16 net_nbuf_append_be32 net_nbuf_insert_u8 net_nbuf_insert_be16 net_nbuf_insert_be32 net_nbuf_write_u8 net_nbuf_write_be16 net_nbuf_write_be32 so they call the base function using K_FOREVER. Use the base function if you want to have a timeout when net_buf is allocated. Change-Id: I20bb602ffb73069e5a02668fce60575141586c0f Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
134 lines
3.1 KiB
C
134 lines
3.1 KiB
C
/** @file
|
|
* @brief IPv4 related functions
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2016 Intel Corporation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#if defined(CONFIG_NET_DEBUG_IPV4)
|
|
#define SYS_LOG_DOMAIN "net/ipv4"
|
|
#define NET_LOG_ENABLED 1
|
|
#endif
|
|
|
|
#include <errno.h>
|
|
#include <net/net_core.h>
|
|
#include <net/nbuf.h>
|
|
#include <net/net_stats.h>
|
|
#include <net/net_context.h>
|
|
#include "net_private.h"
|
|
#include "ipv4.h"
|
|
|
|
struct net_buf *net_ipv4_create_raw(struct net_buf *buf,
|
|
uint16_t reserve,
|
|
const struct in_addr *src,
|
|
const struct in_addr *dst,
|
|
struct net_if *iface,
|
|
uint8_t next_header)
|
|
{
|
|
struct net_buf *header;
|
|
|
|
header = net_nbuf_get_reserve_data(reserve, K_FOREVER);
|
|
|
|
net_buf_frag_insert(buf, header);
|
|
|
|
NET_IPV4_BUF(buf)->vhl = 0x45;
|
|
NET_IPV4_BUF(buf)->tos = 0x00;
|
|
NET_IPV4_BUF(buf)->proto = 0;
|
|
|
|
NET_IPV4_BUF(buf)->ttl = net_if_ipv4_get_ttl(iface);
|
|
NET_IPV4_BUF(buf)->offset[0] = NET_IPV4_BUF(buf)->offset[1] = 0;
|
|
NET_IPV4_BUF(buf)->id[0] = NET_IPV4_BUF(buf)->id[1] = 0;
|
|
|
|
net_ipaddr_copy(&NET_IPV4_BUF(buf)->dst, dst);
|
|
net_ipaddr_copy(&NET_IPV4_BUF(buf)->src, src);
|
|
|
|
NET_IPV4_BUF(buf)->proto = next_header;
|
|
|
|
net_nbuf_set_ip_hdr_len(buf, sizeof(struct net_ipv4_hdr));
|
|
net_nbuf_set_family(buf, AF_INET);
|
|
|
|
net_buf_add(header, sizeof(struct net_ipv4_hdr));
|
|
|
|
return buf;
|
|
}
|
|
|
|
struct net_buf *net_ipv4_create(struct net_context *context,
|
|
struct net_buf *buf,
|
|
const struct in_addr *src,
|
|
const struct in_addr *dst)
|
|
{
|
|
NET_ASSERT(((struct sockaddr_in_ptr *)&context->local)->sin_addr);
|
|
|
|
if (!src) {
|
|
src = ((struct sockaddr_in_ptr *)&context->local)->sin_addr;
|
|
}
|
|
|
|
if (net_is_ipv4_addr_unspecified(src)
|
|
|| net_is_ipv4_addr_mcast(src)) {
|
|
src = &net_nbuf_iface(buf)->ipv4.unicast[0].address.in_addr;
|
|
}
|
|
|
|
return net_ipv4_create_raw(buf,
|
|
net_nbuf_ll_reserve(buf),
|
|
src,
|
|
dst,
|
|
net_context_get_iface(context),
|
|
net_context_get_ip_proto(context));
|
|
}
|
|
|
|
struct net_buf *net_ipv4_finalize_raw(struct net_buf *buf,
|
|
uint8_t next_header)
|
|
{
|
|
/* Set the length of the IPv4 header */
|
|
size_t total_len;
|
|
|
|
net_nbuf_compact(buf);
|
|
|
|
total_len = net_buf_frags_len(buf->frags);
|
|
|
|
NET_IPV4_BUF(buf)->len[0] = total_len / 256;
|
|
NET_IPV4_BUF(buf)->len[1] = total_len - NET_IPV4_BUF(buf)->len[0] * 256;
|
|
|
|
NET_IPV4_BUF(buf)->chksum = 0;
|
|
NET_IPV4_BUF(buf)->chksum = ~net_calc_chksum_ipv4(buf);
|
|
|
|
#if defined(CONFIG_NET_UDP)
|
|
if (next_header == IPPROTO_UDP) {
|
|
NET_UDP_BUF(buf)->chksum = 0;
|
|
NET_UDP_BUF(buf)->chksum = ~net_calc_chksum_udp(buf);
|
|
}
|
|
#endif
|
|
#if defined(CONFIG_NET_TCP)
|
|
if (next_header == IPPROTO_TCP) {
|
|
NET_TCP_BUF(buf)->chksum = 0;
|
|
NET_TCP_BUF(buf)->chksum = ~net_calc_chksum_tcp(buf);
|
|
}
|
|
#endif
|
|
|
|
return buf;
|
|
}
|
|
|
|
struct net_buf *net_ipv4_finalize(struct net_context *context,
|
|
struct net_buf *buf)
|
|
{
|
|
return net_ipv4_finalize_raw(buf,
|
|
net_context_get_ip_proto(context));
|
|
}
|
|
|
|
const struct in_addr *net_ipv4_unspecified_address(void)
|
|
{
|
|
static const struct in_addr addr;
|
|
|
|
return &addr;
|
|
}
|
|
|
|
const struct in_addr *net_ipv4_broadcast_address(void)
|
|
{
|
|
static const struct in_addr addr = { { { 255, 255, 255, 255 } } };
|
|
|
|
return &addr;
|
|
}
|