param.h

嵌入式操作系统ECOS的网络开发包

#define mono_time cyg_mono_time
#define mrt6stat cyg_mrt6stat
#define mtab_lock cyg_mtab_lock
#define multicast_register_if cyg_multicast_register_if
#define n6expire cyg_n6expire
#define nd6_defifindex cyg_nd6_defifindex
#define nd6_slowtimo_ch cyg_nd6_slowtimo_ch
#define nd6_timer_ch cyg_nd6_timer_ch
#define nd_defrouter cyg_nd_defrouter
#define netint_flags cyg_netint_flags
#define ng_ether_attach_p cyg_ng_ether_attach_p
#define ng_ether_detach_p cyg_ng_ether_detach_p
#define ng_ether_input_orphan_p cyg_ng_ether_input_orphan_p
#define ng_ether_input_p cyg_ng_ether_input_p
#define ng_ether_output_p cyg_ng_ether_output_p
#define nstab_lock cyg_nstab_lock
#define rawcb_list cyg_rawcb_list
#define rip6stat cyg_rip6stat
#define ripcb cyg_ripcb
#define ripcbinfo cyg_ripcbinfo
#define route_cb cyg_route_cb
#define rt_tables cyg_rt_tables
#define sig_pending cyg_sig_pending
#define signal_mutex cyg_signal_mutex
#define signal_sigwait cyg_signal_sigwait
#define so_gencnt cyg_so_gencnt
#define socket_zone cyg_socket_zone
#define tcb cyg_tcb
#define tcbinfo cyg_tcbinfo
#define tcp_ccgen cyg_tcp_ccgen
#define tcp_delacktime cyg_tcp_delacktime
#define tcp_keepidle cyg_tcp_keepidle
#define tcp_keepinit cyg_tcp_keepinit
#define tcp_keepintvl cyg_tcp_keepintvl
#define tcp_maxidle cyg_tcp_maxidle
#define tcp_maxpersistidle cyg_tcp_maxpersistidle
#define tcp_msl cyg_tcp_msl
#define tcpstat cyg_tcpstat
#define udb cyg_udb
#define udbinfo cyg_udbinfo
#define udp_ip6 cyg_udp_ip6
#define udpstat cyg_udpstat
#endif

#include <pkgconf/net.h>
#include <cyg/infra/cyg_type.h>  // Standard eCos types

#define __P(protos) protos
#if defined(__cplusplus)
#define __BEGIN_DECLS   extern "C" {
#define __END_DECLS     };
#else
#define __BEGIN_DECLS
#define __END_DECLS
#endif

#include <sys/types.h>
#include <sys/endian.h>
#include <errno.h>

#ifdef _KERNEL
// External [common] variables
extern int hz;
extern volatile struct timeval ktime;
#define time_second ktime.tv_sec
extern int tick;
extern int proc0;
#define curproc 0
extern void microtime(struct timeval *tp);
extern void getmicrotime(struct timeval *tp);
extern void getmicrouptime(struct timeval *tp);
extern int  tvtohz(struct timeval *tv);
extern int  arc4random(void);

//extern u_int in_cksum_hdr(const struct ip *ip);
//extern u_short in_cksum_skip(struct mbuf *m, int len, int skip);
//extern u_short in_pseudo(u_int32_t a, u_int32_t b, u_int32_t c);


// Function mappings

extern int  cyg_ticks(void);
#define ticks cyg_ticks()
extern int  cyg_tsleep(void *, int, char *, int);
extern void cyg_wakeup(void *);
#define tsleep(e,p,w,t) cyg_tsleep(e,0,w,t)
#define wakeup(e)       cyg_wakeup(e)
#define wakeup_one(e)   cyg_wakeup(e)

#ifdef CYGIMPL_TRACE_SPLX   
extern cyg_uint32  cyg_splimp(const char *file, const int line);
extern cyg_uint32  cyg_splnet(const char *file, const int line);
extern cyg_uint32  cyg_splclock(const char *file, const int line);
extern cyg_uint32  cyg_splsoftnet(const char *file, const int line);
extern void        cyg_splx(cyg_uint32, const char *file, const int line);
#define splimp()   cyg_splimp(__FUNCTION__, __LINE__)
#define splnet()   cyg_splnet(__FUNCTION__, __LINE__)
#define splclock() cyg_splclock(__FUNCTION__, __LINE__)
#define splsoftnet() cyg_splsoftnet(__FUNCTION__, __LINE__)
#define splx(x)    cyg_splx(x, __FUNCTION__, __LINE__)
#define cyg_scheduler_lock() _cyg_scheduler_lock(__FUNCTION__, __LINE__)
#define cyg_scheduler_safe_lock() _cyg_scheduler_safe_lock(__FUNCTION__, __LINE__)
#define cyg_scheduler_unlock() _cyg_scheduler_unlock(__FUNCTION__, __LINE__)
#else
extern cyg_uint32  cyg_splimp(void);
extern cyg_uint32  cyg_splnet(void);
extern cyg_uint32  cyg_splclock(void);
extern cyg_uint32  cyg_splsoftnet(void);
extern cyg_uint32  cyg_splhigh(void);
extern void        cyg_splx(cyg_uint32);
#define splimp     cyg_splimp
#define splnet     cyg_splnet
#define splclock   cyg_splclock
#define splsoftnet cyg_splsoftnet
#define splhigh    cyg_splhigh
#define splx       cyg_splx
#endif

extern void cyg_panic(const char *msg, ...);
#define panic cyg_panic

/*
 * Constants related to network buffer management.
 * MCLBYTES must be no larger than CLBYTES (the software page size), and,
 * on machines that exchange pages of input or output buffers with mbuf
 * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
 * of the hardware page size.
 */
#define MSIZE           128             /* size of an mbuf */
#define MCLSHIFT        11              /* convert bytes to m_buf clusters */
#define MCLBYTES        (1 << MCLSHIFT) /* size of a m_buf cluster */
#define MCLOFSET        (MCLBYTES - 1)  /* offset within a m_buf cluster */
#define CLBYTES         4096            /* size of actual cluster */
#define PAGE_SIZE       CLBYTES

/*
 * Round p (pointer or byte index) up to a correctly-aligned value
 * for all data types (int, long, ...).   The result is u_int and
 * must be cast to any desired pointer type.
 */
#define ALIGNBYTES      (sizeof(int) - 1)
#define ALIGN(p)        (((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)

// These symbols are used in the IPV6 stuff
// (be more defensive about external setup)
#undef __linux__   
#undef __bsdi__    
#undef __FreeBSD__ 
#undef __OpenBSD__ 
#undef __NetBSD__  

#define __FreeBSD__       4
#define __FreeBSD_version 440000

// TEMP

#include <cyg/infra/diag.h>
#include <cyg/hal/hal_intr.h>
#include <cyg/kernel/kapi.h>
#include <cyg/io/file.h>

struct net_stats {
    int              count;
    cyg_uint32       min_time, max_time, total_time;
};

#ifdef CYGDBG_NET_TIMING_STATS
#define START_STATS()                                   \
    cyg_uint32 start_time, end_time, elapsed_time;      \
    HAL_CLOCK_READ(&start_time);
#define FINISH_STATS(stats)                                                             \
    HAL_CLOCK_READ(&end_time);                                                          \
    if (end_time < start_time) {                                                        \
        elapsed_time = (end_time+CYGNUM_KERNEL_COUNTERS_RTC_PERIOD) - start_time;       \
    } else {                                                                            \
        elapsed_time = end_time - start_time;                                           \
    }                                                                                   \
    if (stats.min_time == 0) {                                                          \
        stats.min_time = 0x7FFFFFFF;                                                    \
    }                                                                                   \
    if (elapsed_time < stats.min_time)                                                  \
        stats.min_time = elapsed_time;                                                  \
    if (elapsed_time > stats.max_time)                                                  \
        stats.max_time = elapsed_time;                                                  \
    stats.total_time += elapsed_time;                                                   \
    stats.count++;
#else
#define START_STATS() 
#define FINISH_STATS(X)
#endif

// TEMP

// timeout support
typedef void (timeout_fun)(void *);
typedef struct callout {
    struct callout *next, *prev;
    cyg_int32     delta;  // Number of "ticks" in the future for this timeout
    timeout_fun  *fun;    // Function to execute when it expires
    void         *arg;    // Argument to pass when it does
    int           flags;  // Info about this item
} timeout_entry;
#define CALLOUT_LOCAL    0x0001
#define CALLOUT_ACTIVE   0x0002
#define CALLOUT_PENDING  0x0004
extern cyg_uint32 timeout(timeout_fun *fun, void *arg, cyg_int32 delta);
extern void untimeout(timeout_fun *fun, void *arg);

extern void callout_init(struct callout *);
extern void callout_reset(struct callout *, int, timeout_fun *, void *);
extern void callout_stop(struct callout *);
extern int  callout_active(struct callout *);
extern void callout_deactivate(struct callout *);
extern int  callout_pending(struct callout *);

extern int uiomove(caddr_t cp, int n, struct uio *uio);
extern int copyout(const void *s, void *d, size_t len);
extern int copyin(const void *s, void *d, size_t len);
extern void ovbcopy(const void *s, void *d, size_t len);
extern void get_mono_time(void);
extern int arc4random(void);
extern void get_random_bytes(void *buf, size_t len);
extern void read_random_unlimited(void *buf, size_t len);
extern void *hashinit(int elements, void *type, u_long *hashmask);

// Initialization support - cross between RedBoot & FreeBSD
typedef void _init_fun(void *);
typedef _init_fun *_init_fun_ptr;
struct init_tab_entry {
    _init_fun_ptr fun;
    void *data;
    char *name;
} CYG_HAL_TABLE_TYPE;
#define _cat(a,b) a##b
#define __Net_init(_p1_,_p2_,_f_,_d_)                                    \
struct init_tab_entry _cat(_net_init_tab,_p1_##_p2_##_f_) \
  CYG_HAL_TABLE_QUALIFIED_ENTRY(_Net_inits,_p1_##_p2_##_f_) = { _f_, _d_, #_f_ }; 
#define _Net_init(_p1_,_p2_,_f_,_d_)                                    \
        __Net_init(_p1_,_p2_,_f_,_d_)                                    

#define SI_ORDER_FIRST  000000
#define SI_ORDER_SECOND 000001
#define SI_ORDER_THIRD  000002
#define SI_ORDER_MIDDLE 080000
#define SI_ORDER_ANY    FFFFFF

#define SI_SUB_MBUF         0x50
#define SI_SUB_DEVICES      0x60
#define SI_SUB_PSEUDO       0x70
#define SI_SUB_PROTO_IF     0x84
#define SI_SUB_PROTO_DOMAIN 0x88

#define SYSINIT(label, group, order, fun, ident) \
  _Net_init(_cat(group,order), label, fun, ident)
#define PSEUDO_SET(fun, sys) \
  SYSINIT(sys, SI_SUB_PSEUDO, SI_ORDER_FIRST, fun, NULL)

// VM zone stuff
#define ZONE_INTERRUPT  1

typedef struct _elem {
    struct _elem *next;
} elem;

typedef struct vm_zone {
    char *name;
    int   elem_size, free, total;
    int   alloc_tries, alloc_fails, alloc_frees;
    elem *pool;
    struct vm_zone *next;
} *vm_zone_t;
vm_zone_t zinit(char *name, int size, int nentries, int flags, int zalloc);
void *    zalloci(vm_zone_t z);
void      zfreei(vm_zone_t z, void *item);

// Function mapping
#define printf     diag_printf
#define sprintf    diag_sprintf
#define snprintf   diag_snprintf

// Missing standard functions
static __inline int imax(int a, int b) { return (a > b ? a : b); }
static __inline int imin(int a, int b) { return (a < b ? a : b); }
static __inline long lmax(long a, long b) { return (a > b ? a : b); }
static __inline long lmin(long a, long b) { return (a < b ? a : b); }
static __inline u_int max(u_int a, u_int b) { return (a > b ? a : b); }
static __inline u_int min(u_int a, u_int b) { return (a < b ? a : b); }
static __inline quad_t qmax(quad_t a, quad_t b) { return (a > b ? a : b); }
static __inline quad_t qmin(quad_t a, quad_t b) { return (a < b ? a : b); }
static __inline u_long ulmax(u_long a, u_long b) { return (a > b ? a : b); }
static __inline u_long ulmin(u_long a, u_long b) { return (a < b ? a : b); }

// Align a value to a natural multiple (4)
#define _ALIGN(n) (((n)+3)&~3)  // Is this right?
// Round a number 'n' up to a multiple of 'm'
#define roundup(n,m) ((((n)+((m)-1))/(m))*(m))

#define NEW_STRUCT_ROUTE
extern char *hostname;

// Logging facilities
#ifdef CYGPKG_NET_FREEBSD_LOGGING
extern int cyg_net_log_mask;
#define LOG_ERR      0x0001
#define LOG_WARNING  0x0002
#define LOG_NOTICE   0x0004
#define LOG_INFO     0x0008
#define LOG_DEBUG    0x0010
#define LOG_MDEBUG   0x0020
#define LOG_IOCTL    0x0040
#define LOG_ADDR     0x0100
#define LOG_FAIL     0x0200
#define LOG_INIT     0x0080
#define LOG_EMERG    0x4000
#define LOG_CRIT     0x8000
#define log(lvl, args...) \
do { if (cyg_net_log_mask & lvl) diag_printf(args); } while (0)
#define log_dump(lvl, buf, len) \
do { if (cyg_net_log_mask & lvl) diag_dump_buf(buf, len); } while (0)
#define log_(lvl) \
if (cyg_net_log_mask & lvl)
#else
#define log(lvl, args...) 
#define log_dump(lvl, buf, len)
#define log_(lvl)
#endif

#endif // _KERNEL

#endif //_SYS_PARAM_H_