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#ifndef __RPCLIB_H_
#define __RPCLIB_H_
#include <stdint.h>
#define CANARY_SIZE sizeof(uint64_t)
#define CANARY_PADDING_SIZE 12
#define TOKEN_SIZE CANARY_SIZE+CANARY_PADDING_SIZE
#define RPC_PHRASE "zerotier\0"
#define RPC_PHRASE_SIZE 9
// 1st RPC section (metdata)
#define IDX_SIGNAL_PHRASE 0
#define IDX_PID IDX_SIGNAL_PHRASE + RPC_PHRASE_SIZE
#define IDX_TID sizeof(pid_t) + IDX_PID
#define IDX_COUNT IDX_TID + sizeof(pid_t)
#define IDX_TIME IDX_COUNT + sizeof(int)
#define IDX_PAYLOAD IDX_TIME + 20 /* 20 being the length of the timestamp string */
// 2nd RPC section (payload and canary)
#define CMD_ID_IDX 0
#define CANARY_IDX 1
#define STRUCT_IDX CANARY_IDX+CANARY_SIZE
#define BUF_SZ 256
#define PAYLOAD_SZ 223 /* BUF_SZ-IDX_PAYLOAD */
#define ERR_OK 0
/* RPC codes */
#define RPC_UNDEFINED 0
#define RPC_CONNECT 1
#define RPC_CONNECT_SOCKARG 2
#define RPC_CLOSE 3
#define RPC_READ 4
#define RPC_WRITE 5
#define RPC_BIND 6
#define RPC_ACCEPT 7
#define RPC_LISTEN 8
#define RPC_SOCKET 9
#define RPC_SHUTDOWN 10
#define RPC_GETSOCKNAME 11
/* Administration RPC codes */
#define RPC_MAP 20 /* Give the service the value we "see" for the new buffer fd */
#define RPC_MAP_REQ 21 /* A call to determine whether an fd is mapped to the service */
#define RPC_RETVAL 22 /* not RPC per se, but something we should codify */
#define RPC_KILL_INTERCEPT 23 /* Tells the service we need to shut down all connections */
#ifdef __cplusplus
extern "C" {
#endif
int get_retval(int);
//#ifdef NETCON_INTERCEPT
int rpc_join(const char * sockname);
int rpc_send_command(char *path, int cmd, int forfd, void *data, int len);
//#endif
int get_new_fd(int sock);
ssize_t sock_fd_write(int sock, int fd);
ssize_t sock_fd_read(int sock, void *buf, ssize_t bufsize, int *fd);
void rpc_mutex_destroy();
void rpc_mutex_init();
/* Structures used for sending commands via RPC mechanism */
struct bind_st {
int sockfd;
struct sockaddr_storage addr;
socklen_t addrlen;
int __tid;
};
struct connect_st {
int __fd;
struct sockaddr_storage __addr;
socklen_t __len;
int __tid;
};
struct close_st {
int fd;
};
struct listen_st {
int sockfd;
int backlog;
int __tid;
};
struct socket_st {
int socket_family;
int socket_type;
int protocol;
int __tid;
};
struct accept_st {
int sockfd;
struct sockaddr_storage addr;
socklen_t addrlen;
int __tid;
};
struct shutdown_st {
int socket;
int how;
};
struct getsockname_st {
int sockfd;
struct sockaddr_storage addr;
socklen_t addrlen;
};
#ifdef __cplusplus
}
#endif
#endif
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