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struct user_net_device_stats {
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unsigned long long rx_packets; /* total packets received */
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unsigned long long tx_packets; /* total packets transmitted */
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unsigned long long rx_bytes; /* total bytes received */
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unsigned long long tx_bytes; /* total bytes transmitted */
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unsigned long rx_errors; /* bad packets received */
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unsigned long tx_errors; /* packet transmit problems */
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unsigned long rx_dropped; /* no space in linux buffers */
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unsigned long tx_dropped; /* no space available in linux */
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unsigned long rx_multicast; /* multicast packets received */
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unsigned long rx_compressed;
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unsigned long tx_compressed;
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unsigned long collisions;
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/* detailed rx_errors: */
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unsigned long rx_length_errors;
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unsigned long rx_over_errors; /* receiver ring buff overflow */
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unsigned long rx_crc_errors; /* recved pkt with crc error */
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unsigned long rx_frame_errors; /* recv'd frame alignment error */
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unsigned long rx_fifo_errors; /* recv'r fifo overrun */
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unsigned long rx_missed_errors; /* receiver missed packet */
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/* detailed tx_errors */
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unsigned long tx_aborted_errors;
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unsigned long tx_carrier_errors;
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unsigned long tx_fifo_errors;
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unsigned long tx_heartbeat_errors;
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unsigned long tx_window_errors;
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struct interface *next, *prev;
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char name[IFNAMSIZ]; /* interface name */
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short type; /* if type */
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short flags; /* various flags */
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int metric; /* routing metric */
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int mtu; /* MTU value */
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int tx_queue_len; /* transmit queue length */
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struct ifmap map; /* hardware setup */
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struct sockaddr addr; /* IP address */
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struct sockaddr dstaddr; /* P-P IP address */
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struct sockaddr broadaddr; /* IP broadcast address */
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struct sockaddr netmask; /* IP network mask */
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struct sockaddr ipxaddr_bb; /* IPX network address */
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struct sockaddr ipxaddr_sn; /* IPX network address */
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struct sockaddr ipxaddr_e3; /* IPX network address */
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struct sockaddr ipxaddr_e2; /* IPX network address */
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struct sockaddr ddpaddr; /* Appletalk DDP address */
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struct sockaddr ecaddr; /* Econet address */
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char hwaddr[32]; /* HW address */
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struct user_net_device_stats stats; /* statistics */
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int keepalive; /* keepalive value for SLIP */
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int outfill; /* outfill value for SLIP */
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extern int if_fetch(struct interface *ife);
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extern int for_all_interfaces(int (*)(struct interface *, void *), void *);
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extern int free_interface_list(void);
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extern struct interface *lookup_interface(char *name);
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extern int if_readlist(void);
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extern int do_if_fetch(struct interface *ife);
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extern int do_if_print(struct interface *ife, void *cookie);
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extern void ife_print(struct interface *ptr);
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extern const char *if_port_text[][4];
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/* Defines for poor glibc2.0 users, the feature check is done at runtime */
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#if !defined(SIOCSIFTXQLEN)
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#define SIOCSIFTXQLEN 0x8943
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#define SIOCGIFTXQLEN 0x8942
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#if !defined(ifr_qlen)
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/* Actually it is ifru_ivalue, but that is not present in 2.0 kernel headers */
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#define ifr_qlen ifr_ifru.ifru_mtu
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#define HAVE_TXQUEUELEN
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#define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */