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/
usr/
src/
linux-headers-3.0.0-14/
include/
net/
- drwxr-xr-x
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Viewing file: dn.h (6.96 KB) -rw-r--r--Select action/file-type:  ( +) |  ( +) |  ( +) | Code ( +) | Session ( +) |  ( +) | SDB ( +) |  ( +) |  ( +) |  ( +) |  ( +) |  ( +) |
#ifndef _NET_DN_H #define _NET_DN_H
#include <linux/dn.h> #include <net/sock.h> #include <asm/byteorder.h> #include <asm/unaligned.h>
struct dn_scp /* Session Control Port */ { unsigned char state; #define DN_O 1 /* Open */ #define DN_CR 2 /* Connect Receive */ #define DN_DR 3 /* Disconnect Reject */ #define DN_DRC 4 /* Discon. Rej. Complete*/ #define DN_CC 5 /* Connect Confirm */ #define DN_CI 6 /* Connect Initiate */ #define DN_NR 7 /* No resources */ #define DN_NC 8 /* No communication */ #define DN_CD 9 /* Connect Delivery */ #define DN_RJ 10 /* Rejected */ #define DN_RUN 11 /* Running */ #define DN_DI 12 /* Disconnect Initiate */ #define DN_DIC 13 /* Disconnect Complete */ #define DN_DN 14 /* Disconnect Notificat */ #define DN_CL 15 /* Closed */ #define DN_CN 16 /* Closed Notification */
__le16 addrloc; __le16 addrrem; __u16 numdat; __u16 numoth; __u16 numoth_rcv; __u16 numdat_rcv; __u16 ackxmt_dat; __u16 ackxmt_oth; __u16 ackrcv_dat; __u16 ackrcv_oth; __u8 flowrem_sw; __u8 flowloc_sw; #define DN_SEND 2 #define DN_DONTSEND 1 #define DN_NOCHANGE 0 __u16 flowrem_dat; __u16 flowrem_oth; __u16 flowloc_dat; __u16 flowloc_oth; __u8 services_rem; __u8 services_loc; __u8 info_rem; __u8 info_loc;
__u16 segsize_rem; __u16 segsize_loc;
__u8 nonagle; __u8 multi_ireq; __u8 accept_mode; unsigned long seg_total; /* Running total of current segment */
struct optdata_dn conndata_in; struct optdata_dn conndata_out; struct optdata_dn discdata_in; struct optdata_dn discdata_out; struct accessdata_dn accessdata;
struct sockaddr_dn addr; /* Local address */ struct sockaddr_dn peer; /* Remote address */
/* * In this case the RTT estimation is not specified in the * docs, nor is any back off algorithm. Here we follow well * known tcp algorithms with a few small variations. * * snd_window: Max number of packets we send before we wait for * an ack to come back. This will become part of a * more complicated scheme when we support flow * control. * * nsp_srtt: Round-Trip-Time (x8) in jiffies. This is a rolling * average. * nsp_rttvar: Round-Trip-Time-Varience (x4) in jiffies. This is the * varience of the smoothed average (but calculated in * a simpler way than for normal statistical varience * calculations). * * nsp_rxtshift: Backoff counter. Value is zero normally, each time * a packet is lost is increases by one until an ack * is received. Its used to index an array of backoff * multipliers. */ #define NSP_MIN_WINDOW 1 #define NSP_MAX_WINDOW (0x07fe) unsigned long max_window; unsigned long snd_window; #define NSP_INITIAL_SRTT (HZ) unsigned long nsp_srtt; #define NSP_INITIAL_RTTVAR (HZ*3) unsigned long nsp_rttvar; #define NSP_MAXRXTSHIFT 12 unsigned long nsp_rxtshift;
/* * Output queues, one for data, one for otherdata/linkservice */ struct sk_buff_head data_xmit_queue; struct sk_buff_head other_xmit_queue;
/* * Input queue for other data */ struct sk_buff_head other_receive_queue; int other_report;
/* * Stuff to do with the slow timer */ unsigned long stamp; /* time of last transmit */ unsigned long persist; int (*persist_fxn)(struct sock *sk); unsigned long keepalive; void (*keepalive_fxn)(struct sock *sk);
/* * This stuff is for the fast timer for delayed acks */ struct timer_list delack_timer; int delack_pending; void (*delack_fxn)(struct sock *sk);
};
static inline struct dn_scp *DN_SK(struct sock *sk) { return (struct dn_scp *)(sk + 1); }
/* * src,dst : Source and Destination DECnet addresses * hops : Number of hops through the network * dst_port, src_port : NSP port numbers * services, info : Useful data extracted from conninit messages * rt_flags : Routing flags byte * nsp_flags : NSP layer flags byte * segsize : Size of segment * segnum : Number, for data, otherdata and linkservice * xmit_count : Number of times we've transmitted this skb * stamp : Time stamp of most recent transmission, used in RTT calculations * iif: Input interface number * * As a general policy, this structure keeps all addresses in network * byte order, and all else in host byte order. Thus dst, src, dst_port * and src_port are in network order. All else is in host order. * */ #define DN_SKB_CB(skb) ((struct dn_skb_cb *)(skb)->cb) struct dn_skb_cb { __le16 dst; __le16 src; __u16 hops; __le16 dst_port; __le16 src_port; __u8 services; __u8 info; __u8 rt_flags; __u8 nsp_flags; __u16 segsize; __u16 segnum; __u16 xmit_count; unsigned long stamp; int iif; };
static inline __le16 dn_eth2dn(unsigned char *ethaddr) { return get_unaligned((__le16 *)(ethaddr + 4)); }
static inline __le16 dn_saddr2dn(struct sockaddr_dn *saddr) { return *(__le16 *)saddr->sdn_nodeaddr; }
static inline void dn_dn2eth(unsigned char *ethaddr, __le16 addr) { __u16 a = le16_to_cpu(addr); ethaddr[0] = 0xAA; ethaddr[1] = 0x00; ethaddr[2] = 0x04; ethaddr[3] = 0x00; ethaddr[4] = (__u8)(a & 0xff); ethaddr[5] = (__u8)(a >> 8); }
static inline void dn_sk_ports_copy(struct flowidn *fld, struct dn_scp *scp) { fld->fld_sport = scp->addrloc; fld->fld_dport = scp->addrrem; }
extern unsigned dn_mss_from_pmtu(struct net_device *dev, int mtu);
#define DN_MENUVER_ACC 0x01 #define DN_MENUVER_USR 0x02 #define DN_MENUVER_PRX 0x04 #define DN_MENUVER_UIC 0x08
extern struct sock *dn_sklist_find_listener(struct sockaddr_dn *addr); extern struct sock *dn_find_by_skb(struct sk_buff *skb); #define DN_ASCBUF_LEN 9 extern char *dn_addr2asc(__u16, char *); extern int dn_destroy_timer(struct sock *sk);
extern int dn_sockaddr2username(struct sockaddr_dn *addr, unsigned char *buf, unsigned char type); extern int dn_username2sockaddr(unsigned char *data, int len, struct sockaddr_dn *addr, unsigned char *type);
extern void dn_start_slow_timer(struct sock *sk); extern void dn_stop_slow_timer(struct sock *sk);
extern __le16 decnet_address; extern int decnet_debug_level; extern int decnet_time_wait; extern int decnet_dn_count; extern int decnet_di_count; extern int decnet_dr_count; extern int decnet_no_fc_max_cwnd;
extern long sysctl_decnet_mem[3]; extern int sysctl_decnet_wmem[3]; extern int sysctl_decnet_rmem[3];
#endif /* _NET_DN_H */
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