void packet_send_debug(const char *fmt,...) __attribute__((format(printf, 1, 2)));
void set_newkeys(int mode);
void packet_send_debug(const char *fmt,...) __attribute__((format(printf, 1, 2)));
void set_newkeys(int mode);
void packet_get_keyiv(int, u_char *, u_int);
int packet_get_keycontext(int, u_char *);
void packet_set_keycontext(int, u_char *);
u_int32_t packet_get_seqnr(int);
void packet_set_seqnr(int, u_int32_t);
void packet_get_keyiv(int, u_char *, u_int);
int packet_get_keycontext(int, u_char *);
void packet_set_keycontext(int, u_char *);
u_int32_t packet_get_seqnr(int);
void packet_set_seqnr(int, u_int32_t);