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#ifndef __RPCLIB_H_
#define __RPCLIB_H_
#include <stdint.h>
#define CANARY_SZ sizeof(uint64_t)
#define PADDING_SZ 12
#define PADDING 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89
#define RPC_PHRASE "zerotier\0"
#define RPC_PHRASE_SZ 9
#define RPC_TIMESTAMP_SZ 20
// 1st RPC section (metdata)
#define IDX_SIGNAL_PHRASE 0
#define IDX_PID IDX_SIGNAL_PHRASE + RPC_PHRASE_SZ
#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 + RPC_TIMESTAMP_SZ
// 2nd RPC section (payload and canary)
#define CMD_ID_IDX 0
#define CANARY_IDX 1
#define STRUCT_IDX CANARY_IDX+CANARY_SZ
#define BUF_SZ 512
#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
#define RPC_RETVAL 12
#ifdef __cplusplus
extern "C" {
#endif
int get_retval(int);
int rpc_join(const char * sockname);
int rpc_send_command(char *path, int cmd, int forfd, void *data, int len);
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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