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#include <sk_stack.h>
#include <sk_ucb.h>
#include <mr_common.h>
#include <unistd.h>
#include <mr_buffer.h>
#include "sk_udp.h"
static struct sk_app_instance * sk_default_app_instance;
static struct sk_instance * sk_default_instance;
void sk_default_instance_set(struct sk_instance * instance,
struct sk_app_instance * app_instance)
{
sk_default_instance = instance;
sk_default_app_instance = app_instance;
}
int marsio_socket(int family, int type, int protocol)
{
if (unlikely(family != AF_INET && family != AF_INET6))
return -EINVAL;
if (unlikely(type != SOCK_DGRAM))
return -EINVAL;
assert(sk_default_app_instance != NULL);
struct sk_ucb * ucb = sk_ucb_create(sk_default_app_instance);
if (unlikely(ucb == NULL)) return -1;
return sk_ucb_get_index(ucb);
}
int marsio_connect(int fd, const struct sockaddr * addr, socklen_t addrlen)
{
if (addr->sa_family != AF_INET) return -EINVAL;
struct sockaddr_in * sockaddr_in = (struct sockaddr_in *)addr;
assert(sk_default_app_instance != NULL);
struct sk_ucb * ucb = sk_ucb_lookup_by_index(sk_default_app_instance, fd);
if (unlikely(ucb == NULL)) return -EINVAL;
return sk_ucb_connect(ucb, sockaddr_in);
}
int marsio_bind(int fd, const struct sockaddr * addr, socklen_t addrlen)
{
if (addr->sa_family != AF_INET) return -EINVAL;
struct sockaddr_in * sockaddr_in = (struct sockaddr_in *)addr;
assert(sk_default_app_instance != NULL);
struct sk_ucb * ucb = sk_ucb_lookup_by_index(sk_default_app_instance, fd);
if (unlikely(ucb == NULL)) return -EINVAL;
return sk_ucb_bind(ucb, sockaddr_in);
}
#define SK_UDP_MAGIC_CHECK 0
#ifdef __GNUC__
#define container_of(ptr, type, member) ({ \
const typeof(((type *)0)->member) *__mptr = (ptr); \
(type *)((char *)__mptr - offsetof(type,member));})
#else
#define container_of(ptr, type,member) \
((type *)((char *)(ptr) - offsetof(type, member)))
#endif
/* UDP���Ļ�������ͬһ�����ϵĻ�������ʾͬһ��UDP���� */
struct marsio_udp_buff
{
/* ��������ʼ��ַ */
void * start;
/* ���������� */
unsigned int len;
/* ��һ�黺������ַ */
struct marsio_udp_buff * next;
/* ��һ������ʼ��ַ */
struct marsio_udp_buff * next_pkt;
};
struct internal_udp_buff
{
#if SK_UDP_MAGIC_CHECK
char magic_0[2];
#endif
struct rte_mbuf * mbuf;
#if SK_UDP_MAGIC_CHECK
char magic_1[2];
#endif
struct marsio_udp_buff buff;
};
/* ���º���Ϊ����MARSIO-3�汾��ʵ�֣��¹���Ӧ��ʹ�����º��� */
/* BUFF�ṹ����ת������ */
static inline struct marsio_udp_buff * __buff_from_internal_buff(struct internal_udp_buff * in_buff)
{
return &(in_buff->buff);
}
static inline struct internal_udp_buff * __internal_buff_from_buff(struct marsio_udp_buff * buff)
{
return container_of(buff, struct internal_udp_buff, buff);
}
static inline struct rte_mbuf * __mbuf_from_buff(struct marsio_udp_buff * buff)
{
return __internal_buff_from_buff(buff)->mbuf;
}
struct marsio_udp_buff * marsio_udp_alloc()
{
struct rte_mbuf * mbuf = rte_pktmbuf_alloc(sk_default_app_instance->def_direct_pktmbuf_pool);
if (unlikely(mbuf == NULL)) return NULL;
uint8_t ctrlzone_id = sk_default_app_instance->instance->ctrlzone_id_soqinfo;
struct internal_udp_buff * in_buff = (struct internal_udp_buff *)mr_buffer_ctrlzone(mbuf, ctrlzone_id);
assert(in_buff != NULL);
in_buff->mbuf = mbuf;
in_buff->buff.start = rte_pktmbuf_mtod(mbuf, void *);
in_buff->buff.len = mbuf->buf_len - mbuf->data_off;
in_buff->buff.next = NULL;
in_buff->buff.next_pkt = NULL;
return __buff_from_internal_buff(in_buff);
}
void marsio_udp_free(struct marsio_udp_buff * udp_buff)
{
struct rte_mbuf * mbuf = __mbuf_from_buff(udp_buff);
rte_pktmbuf_free(mbuf);
return;
}
/* ����UDP Buff�ṹ�������ӵ�MBUF�ṹ*/
static inline struct rte_mbuf * update_rte_mbuf(struct marsio_udp_buff * buff_head)
{
struct marsio_udp_buff * now_buff_head = buff_head;
struct rte_mbuf * mbuf_chain_head = __mbuf_from_buff(buff_head);
// ��һ������ʼ��
mbuf_chain_head->pkt_len = buff_head->len;
mbuf_chain_head->data_len = buff_head->len;
mbuf_chain_head->nb_segs = 1;
// ����BUFF�ṹ����MBUF����
while (now_buff_head != NULL)
{
#if SK_UDP_MAGIC_CHECK
struct internal_udp_buff * __check_in_buff = __internal_buff_from_buff(now_buff_head);
__magic_check(__check_in_buff);
#endif
struct rte_mbuf * mbuf_now = __mbuf_from_buff(now_buff_head);
if (mbuf_now != mbuf_chain_head) rte_pktmbuf_chain(mbuf_chain_head, mbuf_now);
now_buff_head = now_buff_head->next;
}
return mbuf_chain_head;
}
static ssize_t __udp_sendto_burst(int marsio_fd, struct marsio_udp_buff * buff[],
unsigned int nr_buff, int flags, struct sockaddr * to, socklen_t addrlen)
{
// ���ҵ�ǰ��FD��Ӧ��UCB
struct sk_ucb * ucb = sk_ucb_lookup_by_index(sk_default_app_instance, marsio_fd);
if (unlikely(ucb == NULL)) return -EINVAL;
// ��ַת����MBUFת��
struct sockaddr_in * sockaddr_in = (struct sockaddr_in *)to;
if (unlikely(sockaddr_in->sin_family != AF_INET)) return -EINVAL;
struct rte_mbuf * mbufs[MR_BURST_MAX];
for(int i = 0; i < nr_buff; i++)
{
mbufs[i] = update_rte_mbuf(buff[i]);
}
// ��ѯĿ��Destinfo
struct sk_destinfo * destinfo = sk_ucb_destinfo_get(ucb);
if (destinfo != NULL) goto send;
destinfo = sk_destinfo_create_by_route(sk_default_app_instance, sockaddr_in->sin_addr);
if (unlikely(destinfo == NULL)) goto errout;
send:
return sk_udp_send_burst(sk_default_app_instance, flags, destinfo, mbufs,
nr_buff, 0);
errout:
return 0;
}
ssize_t marsio_udp_sendto_chain(int marsio_fd, struct marsio_udp_buff * chain_head, int nb_buff,
int flags, struct sockaddr * to[], socklen_t addrlen[], int nb_sockaddrs)
{
int nb_chain_pkts = 0;
struct marsio_udp_buff * buff_array[MR_BURST_MAX];
if (unlikely(nb_buff > RTE_DIM(buff_array))) return -ENOBUFS;
for (struct marsio_udp_buff * __head = chain_head; __head != NULL; __head = __head->next_pkt)
{
buff_array[nb_chain_pkts++] = __head;
}
// ��֧�ִ���1��Ŀ���ַ
if (nb_sockaddrs > 1) return -EINVAL;
return __udp_sendto_burst(marsio_fd, buff_array, nb_chain_pkts, flags, to[0], addrlen[0]);
}
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