mirror of
https://github.com/schoebel/mars
synced 2024-12-27 17:12:32 +00:00
132 lines
3.6 KiB
C
132 lines
3.6 KiB
C
// (c) 2011 Thomas Schoebel-Theuer / 1&1 Internet AG
|
|
#ifndef MARS_NET_H
|
|
#define MARS_NET_H
|
|
|
|
#include <net/sock.h>
|
|
#include <net/ipconfig.h>
|
|
#include <net/tcp.h>
|
|
|
|
#include "brick.h"
|
|
|
|
extern bool mars_net_is_alive;
|
|
|
|
#define MAX_FIELD_LEN 32
|
|
#define MAX_DESC_CACHE 16
|
|
|
|
struct mars_desc_cache {
|
|
u64 cache_sender_cookie;
|
|
u64 cache_recver_cookie;
|
|
s32 cache_items;
|
|
};
|
|
|
|
struct mars_desc_item {
|
|
char field_name[MAX_FIELD_LEN];
|
|
s32 field_type;
|
|
s32 field_size;
|
|
s32 field_sender_offset;
|
|
s32 field_recver_offset;
|
|
};
|
|
|
|
/* The original struct socket has no refcount. This leads to problems
|
|
* during long-lasting system calls when racing with socket shutdown.
|
|
*
|
|
* The original idea of struct mars_socket was just a small wrapper
|
|
* adding a refcount and some debugging aid.
|
|
* Later, some buffering was added in order to take advantage of
|
|
* kernel_sendpage().
|
|
* Caching of meta description has also been added.
|
|
*/
|
|
struct mars_socket {
|
|
struct socket *s_socket;
|
|
void *s_buffer;
|
|
atomic_t s_count;
|
|
int s_pos;
|
|
int s_debug_nr;
|
|
bool s_shutdown_on_err;
|
|
bool s_alive;
|
|
struct mars_desc_cache *s_desc_send[MAX_DESC_CACHE];
|
|
struct mars_desc_cache *s_desc_recv[MAX_DESC_CACHE];
|
|
};
|
|
|
|
struct mars_tcp_params {
|
|
int tcp_timeout;
|
|
int window_size;
|
|
int tcp_keepcnt;
|
|
int tcp_keepintvl;
|
|
int tcp_keepidle;
|
|
char tos;
|
|
};
|
|
|
|
extern struct mars_tcp_params default_tcp_params;
|
|
|
|
enum {
|
|
CMD_NOP,
|
|
CMD_NOTIFY,
|
|
CMD_CONNECT,
|
|
CMD_GETINFO,
|
|
CMD_GETENTS,
|
|
CMD_MREF,
|
|
CMD_CB,
|
|
};
|
|
|
|
#define CMD_FLAG_MASK 255
|
|
#define CMD_FLAG_HAS_DATA 256
|
|
|
|
struct mars_cmd {
|
|
struct timespec cmd_stamp; // for automatic lamport clock
|
|
int cmd_code;
|
|
int cmd_int1;
|
|
//int cmd_int2;
|
|
//int cmd_int3;
|
|
char *cmd_str1;
|
|
//char *cmd_str2;
|
|
//char *cmd_str3;
|
|
};
|
|
|
|
extern const struct meta mars_cmd_meta[];
|
|
|
|
extern char *(*mars_translate_hostname)(const char *name);
|
|
|
|
/* Low-level network traffic
|
|
*/
|
|
extern int mars_create_sockaddr(struct sockaddr_storage *addr, const char *spec);
|
|
|
|
extern int mars_create_socket(struct mars_socket *msock, struct sockaddr_storage *addr, bool is_server);
|
|
extern int mars_accept_socket(struct mars_socket *new_msock, struct mars_socket *old_msock);
|
|
extern bool mars_get_socket(struct mars_socket *msock);
|
|
extern void mars_put_socket(struct mars_socket *msock);
|
|
extern void mars_shutdown_socket(struct mars_socket *msock);
|
|
extern bool mars_socket_is_alive(struct mars_socket *msock);
|
|
|
|
extern int mars_send_raw(struct mars_socket *msock, const void *buf, int len, bool cork);
|
|
extern int mars_recv_raw(struct mars_socket *msock, void *buf, int minlen, int maxlen);
|
|
|
|
/* Mid-level generic field data exchange
|
|
*/
|
|
extern int mars_send_struct(struct mars_socket *msock, const void *data, const struct meta *meta);
|
|
#define mars_recv_struct(_sock_,_data_,_meta_) \
|
|
({ \
|
|
_mars_recv_struct(_sock_, _data_, _meta_, __LINE__); \
|
|
})
|
|
extern int _mars_recv_struct(struct mars_socket *msock, void *data, const struct meta *meta, int line);
|
|
|
|
/* High-level transport of mars structures
|
|
*/
|
|
extern int mars_send_dent_list(struct mars_socket *msock, struct list_head *anchor);
|
|
extern int mars_recv_dent_list(struct mars_socket *msock, struct list_head *anchor);
|
|
|
|
extern int mars_send_mref(struct mars_socket *msock, struct mref_object *mref);
|
|
extern int mars_recv_mref(struct mars_socket *msock, struct mref_object *mref, struct mars_cmd *cmd);
|
|
extern int mars_send_cb(struct mars_socket *msock, struct mref_object *mref);
|
|
extern int mars_recv_cb(struct mars_socket *msock, struct mref_object *mref, struct mars_cmd *cmd);
|
|
|
|
/////////////////////////////////////////////////////////////////////////
|
|
|
|
// init
|
|
|
|
extern int init_mars_net(void);
|
|
extern void exit_mars_net(void);
|
|
|
|
|
|
#endif
|