cregit-Linux how code gets into the kernel

Release 4.12 include/net/dn.h

Directory: include/net
#ifndef _NET_DN_H

#define _NET_DN_H

#include <linux/dn.h>
#include <net/sock.h>
#include <net/flow.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;

unsigned long nsp_srtt;

unsigned long nsp_rttvar;

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); }


Arnaldo Carvalho de Melo2388.46%150.00%
David S. Miller311.54%150.00%

/* * 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)); }


Linus Torvalds (pre-git)1557.69%125.00%
Harvey Harrison726.92%125.00%
Steven Whitehouse415.38%250.00%

static inline __le16 dn_saddr2dn(struct sockaddr_dn *saddr) { return *(__le16 *)saddr->sdn_nodeaddr; }


Linus Torvalds (pre-git)1986.36%133.33%
Steven Whitehouse313.64%266.67%

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); }


Linus Torvalds (pre-git)6582.28%125.00%
Steven Whitehouse1316.46%250.00%
Harvey Harrison11.27%125.00%

static inline void dn_sk_ports_copy(struct flowidn *fld, struct dn_scp *scp) { fld->fld_sport = scp->addrloc; fld->fld_dport = scp->addrrem; }


Steven Whitehouse2781.82%150.00%
David S. Miller618.18%150.00%

unsigned int dn_mss_from_pmtu(struct net_device *dev, int mtu); void dn_register_sysctl(void); void dn_unregister_sysctl(void); #define DN_MENUVER_ACC 0x01 #define DN_MENUVER_USR 0x02 #define DN_MENUVER_PRX 0x04 #define DN_MENUVER_UIC 0x08 struct sock *dn_sklist_find_listener(struct sockaddr_dn *addr); struct sock *dn_find_by_skb(struct sk_buff *skb); #define DN_ASCBUF_LEN 9 char *dn_addr2asc(__u16, char *); int dn_destroy_timer(struct sock *sk); int dn_sockaddr2username(struct sockaddr_dn *addr, unsigned char *buf, unsigned char type); int dn_username2sockaddr(unsigned char *data, int len, struct sockaddr_dn *addr, unsigned char *type); void dn_start_slow_timer(struct sock *sk); 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 */

Overall Contributors

Linus Torvalds (pre-git)56371.54%422.22%
Steven Whitehouse11814.99%316.67%
Linus Torvalds435.46%211.11%
Arnaldo Carvalho de Melo263.30%15.56%
Rashika Kheria121.52%15.56%
David S. Miller121.52%316.67%
Harvey Harrison111.40%211.11%
Eric Dumazet20.25%211.11%
Directory: include/net
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